Move Source From Main Repo

Based on libedit-55

CMakeLists.txt

@@ -0,0 +1,62 @@
+project(libedit)
+
+cmake_minimum_required(VERSION 3.10)
+
+if(COMMAND cmake_policy)
+	cmake_policy(SET CMP0003 NEW)
+endif(COMMAND cmake_policy)
+
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -nostdinc -D__DARWIN_UNIX03 -fPIC -w")
+set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -nostdlib")
+
+include_directories(BEFORE ${CMAKE_CURRENT_SOURCE_DIR}/src)
+include_directories(${CMAKE_CURRENT_SOURCE_DIR}/local)
+include_directories(${CMAKE_CURRENT_SOURCE_DIR})
+
+set(edit_SRCS
+	src/chared.c
+	src/chartype.c
+	src/common.c
+	src/el.c
+	src/eln.c
+	src/emacs.c
+	src/filecomplete.c
+	src/hist.c
+	src/history.c
+	src/keymacro.c
+	src/map.c
+	src/parse.c
+	src/prompt.c
+	src/read.c
+	src/readline.c
+	src/refresh.c
+	src/search.c
+	src/sig.c
+	src/terminal.c
+	src/tokenizer.c
+	src/tty.c
+	src/unvis.c
+	src/vi.c
+	src/vis.c
+	src/wcsdup.c
+
+	local/fcns.c
+	local/help.c
+	local/historyn.c
+	local/tokenizern.c
+)
+
+set(DYLIB_INSTALL_NAME "/usr/lib/libedit.3.dylib")
+set(DYLIB_COMPAT_VERSION "2.0.0")
+set(DYLIB_CURRENT_VERSION "3.0.0")
+
+add_darling_library(edit SHARED ${edit_SRCS})
+make_fat(edit)
+set_target_properties(edit PROPERTIES OUTPUT_NAME "edit.3")
+target_link_libraries(edit PRIVATE system ncurses)
+
+InstallSymlink("libedit.3.dylib" "${CMAKE_INSTALL_PREFIX}/libexec/darling/usr/lib/libedit.2.dylib")
+InstallSymlink("libedit.3.dylib" "${CMAKE_INSTALL_PREFIX}/libexec/darling/usr/lib/libedit.dylib")
+
+install(TARGETS edit DESTINATION libexec/darling/usr/lib)
+install(FILES inputrc DESTINATION libexec/darling/etc)

UPDATING

@@ -0,0 +1,71 @@
+1) Unpack the original tarball in a separate directory.  Create a diff of the
+original and the current src directory.
+
+2) Unpack the new update in a separate directory.  Overwrite the files in src
+with the files from the update.  Note that some filenames have been renamed:
+
+key.c     -> keymacro.c
+key.h     -> keymacro.h
+term.c    -> terminal.c
+el_term.h -> terminal.h
+
+Then manually apply the changes from the diff in 1) to the new files.
+
+3) The patch-configure.ac file only deals with libtool-style versioning.
+We had altered the version numbers so that the version number in the name
+of the dylib matched the libedit version number, but this was the wrong
+thing to do, and now we are stuck.  For instance, original libtool-style
+version number for a past version was 0:27:0.  It was changed to 1:11:0 so
+that libedit.2.11.dylib was created (1 is added to the major number, because
+the libtool major number can be zero, but not the Mac OS X major number).
+
+libedit 3.0 has a libtool version number of 0:35:0, meaning it is binary-
+compatible with the 2.11 version.  Since we now build with Xcode, we don't
+care about the libtool versioning, *except* that it tells use the 3.0
+version is binary compatible with libedit.2.dylib.  So we can create a
+libedit.3.dylib, plus the usual symlinks libedit.dylib, and libedit.3.0.dylib,
+and also create a libedit.2.dylib symlink, *if* we remember to set the
+compatibility version of libedit.3.dylib to 2.0.
+
+4) Unpack the original tarball, make a darwin subdirectory at the top level,
+and cd there.  Then run:
+
+% ../configure --help
+
+Do the same for the new tarball.  In this case, there are no new options.
+
+5) Run in each of the darwin subdirectories:
+
+% ../configure --disable-dependency-tracking --enable-shared --disable-static --enable-widec
+% make
+
+This will create config.h at the top level, and the nine auto-generated files:
+
+common.h	fcns.c		help.c		historyn.c	vi.h
+emacs.h		fcns.h		help.h		tokenizern.c
+
+in the src directory.
+
+6) For the original files, copy the nine auto-generated files to a temp
+directory, like /tmp/local:
+
+% diff -r /tmp/local $libedit/local >/tmp/DIFF
+
+(where $libedit is the path the the current version of the libedit project).
+This create a diff of what has changed in those auto-generated files.
+
+7) Overwrite the nine auto-generated files in $libedit/local from the new darwin/src directory.
+Now manually apply the patches from /tmp/DIFF.
+
+8) Diff the original config.h with the one in $libedit (in this case, no
+differences).
+
+9) Diff the original config.h with the new config.h to see what has changed.
+Then overwrite the original config.h with the new config.h.
+
+10) Global replace in libedit.xcodeproj/project.pbxproj, the filenames that
+have changed with their new name.
+
+11) Update the man pages in the doc directory,
+
+12) Update the libedit.plist.

UPDATING-20100424

@@ -0,0 +1,134 @@
+0) Unpack the new update.
+
+1) Examine each patchfile to determine if all or some patches may no longer be
+needed, or needs to be applied differently (see 2 below for special-case
+patch-configure.ac).  Once patched are applied, update the patch files in
+the applied-patched directory.
+
+2) The patch-configure.ac file only deals with libtool-style versioning.
+We had altered the version numbers so that the version number in the name
+of the dylib matched the libedit version number, but this was the wrong
+thing to do, and now we are stuck.  For instance, original libtool-style
+version number for a past version was 0:27:0.  It was changed to 1:11:0 so
+that libedit.2.11.dylib was created (1 is added to the major number, because
+the libtool major number can be zero, but not the Mac OS X major number).
+
+libedit 3.0 has a libtool version number of 0:35:0, meaning it is binary-
+compatible with the 2.11 version.  Since we now build with Xcode, we don't
+care about the libtool versioning, *except* that it tells use the 3.0
+version is binary compatible with libedit.2.dylib.  So we can create a
+libedit.3.dylib, plus the usual symlinks libedit.dylib, and libedit.3.0.dylib,
+and also create a libedit.2.dylib symlink, *if* we remember to set the
+compatibility version of libedit.3.dylib to 2.0.
+
+3) We need to create config.h, which means we need to run configure.  New
+in libedit 3.0 is utf-8 support, which is enabled with the --enable-widec
+option.  To determine what what this option changes, we create two copies
+of the patched directories, and run configure in both, one with the new
+option, and one without.
+
+3a) We compare the config.h from the two directories.  In this case, a new
+new #define is set (WIDECHAR).
+
+3b) We compare the corresponding Makefiles, ignoring path differences due
+to having two different directory names.  Again, in this case, we see that
+previously commented-out files are now enabled (this also tells us that if
+we didn't enable the utf-8 support, those files would be unused, and probably
+would have waste space if we blindly added those files to Xcode).  There are
+3 new .c files in this case:
+
+    eln.c historyn.c tokenizern.c
+
+4) Compare the files in the src directory, between the old libedit and the
+new.  There are 3 new .c files and 1 new .h file:
+
+    chartype.c chartype.h eln.c wcsdup.c
+
+So 1 of these new .c files (eln.c) is accounted for in 3b).
+
+5) src/Makefile creates some of these new source files.  These files (along
+with others) are stored in the "local" directory in the libedit project, so we
+will need to recreate them again:
+
+    cd src
+    echo 'my_local: $(BUILT_SOURCES)' >> Makefile
+    # the "am__configure_deps=" prevents trying to autoreconf
+    make my_local am__configure_deps=
+
+In this case, the files:
+
+    vi.h emacs.h common.h fcns.h help.h fcns.c help.c tokenizern.c historyn.c
+
+are created.
+
+Two of these .c files were found in 3b) (tokenizern.c historyn.c).
+
+6) From 4) and 5), the files from 3b) are accounted for.  That leaves 2 .c
+files found in 4) (chartype.c wcsdup.c) that are new and build by default
+(which the Makefile confirms).
+
+7) Copy the (unmodified) src directory to the src directory of the SVN copy.
+Add the new files found in 4):
+
+    svn add chartype.c chartype.h eln.c wcsdup.c
+
+8) Copy the files created in 5) to the local directory of the SVN copy, and
+add the new files:
+
+    svn add tokenizern.c historyn.c
+
+9) For completeness, copy libedit.pc (after running configure), to the local
+directory.
+
+10) Go into Xcode and add the files from 4) to the libedit and libedit-static
+targets.  When these files appear under the libedit group, move them into the
+Source folder (sorting alphabetically to be nice).
+
+11) Add the new files from 5) to the libedit and libedit-static targets.  When
+these files appear under the libedit group, move them into the local folder
+(sorting alphabetically to be nice).
+
+12) Modify the "make lists" script to add the two new file creations (for
+historyn.c tokenizern.c).  We also remove the "make list" build phase from each
+of the libedit and libedit-static targets, since we should not be modifying
+files (at build time) in SRCROOT.  Besides, this would hide the fact that
+the files in the local directory are out of date from what actually gets
+built.
+
+13) For the libedit target, change the "Current Library Version" from 2.11
+to 3.0.  Leave the "Compatibility Version" at 2.  Change the "Product Name"
+from "edit.2" to "edit.3".
+
+14) Under the all target, modify the "install misc" script.  Replace:
+
+foreach l (libedit.2.11.dylib libedit.dylib libreadline.dylib) do
+    ln -s libedit.2.dylib $DSTROOT/usr/lib/$l
+done
+
+with:
+
+foreach l (libedit.2.dylib libedit.3.0.dylib libedit.dylib libreadline.dylib) do
+    ln -s libedit.3.dylib $DSTROOT/usr/lib/$l
+done
+
+14) In the doc directory of the unpacked-and-configured copy, run:
+
+    touch ../config.status
+    echo 'my_man: $(EL_MANS)' >> Makefile
+    make my_man am__configure_deps=
+
+Copy the two man pages (editline.3 editrc.5) to the doc subdirectory of the SVN
+copy.
+
+15) Update the libedit.plist file (in the local directory), with the current
+information.
+
+16) Add the tarball to SVN, so we have a copy of the original sources.
+
+17) Because tokenizern.c and historyn.c are located in the local directory,
+and because they expect to include the tokenizer.c and history.c files,
+respectively, a new include directory needed to be added to Xcode (the "src"
+directory).  The -fpascal-strings option was removed as extraneous.
+
+18) Build libedit and if testing finds bugs, fix the code, and update/create
+the corresponding patch file.

config.h

@@ -0,0 +1,296 @@
+/* config.h.  Generated from config.h.in by configure.  */
+/* config.h.in.  Generated from configure.ac by autoheader.  */
+
+/* Define to 1 if the `closedir' function returns void instead of `int'. */
+/* #undef CLOSEDIR_VOID */
+
+/* Define to 1 if you have the <curses.h> header file. */
+#define HAVE_CURSES_H 1
+
+/* Define to 1 if you have the <dirent.h> header file, and it defines `DIR'.
+   */
+#define HAVE_DIRENT_H 1
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#define HAVE_DLFCN_H 1
+
+/* Define to 1 if you have the `endpwent' function. */
+#define HAVE_ENDPWENT 1
+
+/* Define to 1 if you have the <fcntl.h> header file. */
+#define HAVE_FCNTL_H 1
+
+/* Define to 1 if you have the `fgetln' function. */
+#define HAVE_FGETLN 1
+
+/* Define to 1 if you have the `fork' function. */
+#define HAVE_FORK 1
+
+/* Define to 1 if you have getpwnam_r and getpwuid_r that are draft POSIX.1
+   versions. */
+/* #undef HAVE_GETPW_R_DRAFT */
+
+/* Define to 1 if you have getpwnam_r and getpwuid_r that are POSIX.1
+   compatible. */
+#define HAVE_GETPW_R_POSIX 1
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#define HAVE_INTTYPES_H 1
+
+/* Define to 1 if you have the `isascii' function. */
+#define HAVE_ISASCII 1
+
+/* Define to 1 if you have the `issetugid' function. */
+#define HAVE_ISSETUGID 1
+
+/* Define to 1 if you have the `curses' library (-lcurses). */
+/* #undef HAVE_LIBCURSES */
+
+/* Define to 1 if you have the `ncurses' library (-lncurses). */
+/* #undef HAVE_LIBNCURSES */
+
+/* Define to 1 if you have the `termcap' library (-ltermcap). */
+#define HAVE_LIBTERMCAP 1
+
+/* Define to 1 if you have the `terminfo' library (-lterminfo). */
+/* #undef HAVE_LIBTERMINFO */
+
+/* Define to 1 if you have the `termlib' library (-ltermlib). */
+/* #undef HAVE_LIBTERMLIB */
+
+/* Define to 1 if you have the `tinfo' library (-ltinfo). */
+/* #undef HAVE_LIBTINFO */
+
+/* Define to 1 if you have the <limits.h> header file. */
+#define HAVE_LIMITS_H 1
+
+/* Define to 1 if you have the <malloc.h> header file. */
+/* #undef HAVE_MALLOC_H */
+
+/* Define to 1 if you have the `memchr' function. */
+#define HAVE_MEMCHR 1
+
+/* Define to 1 if you have the <memory.h> header file. */
+#define HAVE_MEMORY_H 1
+
+/* Define to 1 if you have the `memset' function. */
+#define HAVE_MEMSET 1
+
+/* Define to 1 if you have the <ncurses.h> header file. */
+#define HAVE_NCURSES_H 1
+
+/* Define to 1 if you have the <ndir.h> header file, and it defines `DIR'. */
+/* #undef HAVE_NDIR_H */
+
+/* Define to 1 if you have the `regcomp' function. */
+#define HAVE_REGCOMP 1
+
+/* Define to 1 if you have the `re_comp' function. */
+/* #undef HAVE_RE_COMP */
+
+/* Define to 1 if `stat' has the bug that it succeeds when given the
+   zero-length file name argument. */
+/* #undef HAVE_STAT_EMPTY_STRING_BUG */
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#define HAVE_STDINT_H 1
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the `strcasecmp' function. */
+#define HAVE_STRCASECMP 1
+
+/* Define to 1 if you have the `strchr' function. */
+#define HAVE_STRCHR 1
+
+/* Define to 1 if you have the `strcspn' function. */
+#define HAVE_STRCSPN 1
+
+/* Define to 1 if you have the `strdup' function. */
+#define HAVE_STRDUP 1
+
+/* Define to 1 if you have the `strerror' function. */
+#define HAVE_STRERROR 1
+
+/* Define to 1 if you have the <strings.h> header file. */
+#define HAVE_STRINGS_H 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#define HAVE_STRING_H 1
+
+/* Define to 1 if you have the `strlcat' function. */
+#define HAVE_STRLCAT 1
+
+/* Define to 1 if you have the `strlcpy' function. */
+#define HAVE_STRLCPY 1
+
+/* Define to 1 if you have the `strrchr' function. */
+#define HAVE_STRRCHR 1
+
+/* Define to 1 if you have the `strstr' function. */
+#define HAVE_STRSTR 1
+
+/* Define to 1 if you have the `strtol' function. */
+#define HAVE_STRTOL 1
+
+/* Define to 1 if struct dirent has member d_namlen */
+#define HAVE_STRUCT_DIRENT_D_NAMLEN 1
+
+/* Define to 1 if you have the `strunvis' function. */
+#define HAVE_STRUNVIS 1
+
+/* Define to 1 if you have the `strvis' function. */
+#define HAVE_STRVIS 1
+
+/* Define to 1 if you have the <sys/cdefs.h> header file. */
+#define HAVE_SYS_CDEFS_H 1
+
+/* Define to 1 if you have the <sys/dir.h> header file, and it defines `DIR'.
+   */
+/* #undef HAVE_SYS_DIR_H */
+
+/* Define to 1 if you have the <sys/ioctl.h> header file. */
+#define HAVE_SYS_IOCTL_H 1
+
+/* Define to 1 if you have the <sys/ndir.h> header file, and it defines `DIR'.
+   */
+/* #undef HAVE_SYS_NDIR_H */
+
+/* Define to 1 if you have the <sys/param.h> header file. */
+#define HAVE_SYS_PARAM_H 1
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#define HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#define HAVE_SYS_TYPES_H 1
+
+/* Define to 1 if you have <sys/wait.h> that is POSIX.1 compatible. */
+#define HAVE_SYS_WAIT_H 1
+
+/* Define to 1 if you have the <termcap.h> header file. */
+#define HAVE_TERMCAP_H 1
+
+/* Define to 1 if you have the <term.h> header file. */
+#define HAVE_TERM_H 1
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#define HAVE_UNISTD_H 1
+
+/* Define to 1 if the system has the type `u_int32_t'. */
+#define HAVE_U_INT32_T 1
+
+/* Define to 1 if you have the `vfork' function. */
+#define HAVE_VFORK 1
+
+/* Define to 1 if you have the <vfork.h> header file. */
+/* #undef HAVE_VFORK_H */
+
+/* Define to 1 if you have the `vis' function. */
+#define HAVE_VIS 1
+
+/* Define to 1 if you have the `wcsdup' function. */
+#define HAVE_WCSDUP 1
+
+/* Define to 1 if `fork' works. */
+#define HAVE_WORKING_FORK 1
+
+/* Define to 1 if `vfork' works. */
+#define HAVE_WORKING_VFORK 1
+
+/* Define to 1 if `lstat' dereferences a symlink specified with a trailing
+   slash. */
+/* #undef LSTAT_FOLLOWS_SLASHED_SYMLINK */
+
+/* Define to the sub-directory in which libtool stores uninstalled libraries.
+   */
+#define LT_OBJDIR ".libs/"
+
+/* Name of package */
+#define PACKAGE "libedit-20121213"
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT ""
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "libedit"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "libedit 3.0"
+
+/* Define to the one symbol short name of this package. */
+#define PACKAGE_TARNAME "libedit-20121213"
+
+/* Define to the home page for this package. */
+#define PACKAGE_URL ""
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "3.0"
+
+/* Define as the return type of signal handlers (`int' or `void'). */
+#define RETSIGTYPE void
+
+/* Define to 1 if you have the ANSI C header files. */
+#define STDC_HEADERS 1
+
+/* Enable extensions on AIX 3, Interix.  */
+#ifndef _ALL_SOURCE
+# define _ALL_SOURCE 1
+#endif
+/* Enable GNU extensions on systems that have them.  */
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE 1
+#endif
+/* Enable threading extensions on Solaris.  */
+#ifndef _POSIX_PTHREAD_SEMANTICS
+# define _POSIX_PTHREAD_SEMANTICS 1
+#endif
+/* Enable extensions on HP NonStop.  */
+#ifndef _TANDEM_SOURCE
+# define _TANDEM_SOURCE 1
+#endif
+/* Enable general extensions on Solaris.  */
+#ifndef __EXTENSIONS__
+# define __EXTENSIONS__ 1
+#endif
+
+
+/* Version number of package */
+#define VERSION "3.0"
+
+/* Define to 1 if you want wide-character code */
+#define WIDECHAR 1
+
+/* Define to 1 if on MINIX. */
+/* #undef _MINIX */
+
+/* Define to 2 if the system does not provide POSIX.1 features except with
+   this defined. */
+/* #undef _POSIX_1_SOURCE */
+
+/* Define to 1 if you need to in order for `stat' and other things to work. */
+/* #undef _POSIX_SOURCE */
+
+/* Define to empty if `const' does not conform to ANSI C. */
+/* #undef const */
+
+/* Define to `int' if <sys/types.h> does not define. */
+/* #undef pid_t */
+
+/* Define to `unsigned int' if <sys/types.h> does not define. */
+/* #undef size_t */
+
+/* Define as `fork' if `vfork' does not work. */
+/* #undef vfork */
+
+/* 13150025 */
+#define HAVE_FGETLN 1
+#define HAVE_STRLCAT 1
+#define HAVE_STRLCPY 1
+
+#include "sys.h"
+#define SCCSID
+/* #undef LIBC_SCCS */
+#define lint
+

doc/editline.3

@@ -0,0 +1,891 @@
+.\"	$NetBSD: editline.3,v 1.77 2012/09/11 20:29:58 christos Exp $
+.\"
+.\" Copyright (c) 1997-2003 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" This file was contributed to The NetBSD Foundation by Luke Mewburn.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+.\" PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd September 11, 2012
+.Dt EDITLINE 3
+.Os
+.Sh NAME
+.Nm editline ,
+.Nm el_init ,
+.Nm el_end ,
+.Nm el_reset ,
+.Nm el_gets ,
+.Nm el_wgets ,
+.Nm el_getc ,
+.Nm el_wgetc ,
+.Nm el_push ,
+.Nm el_wpush ,
+.Nm el_parse ,
+.Nm el_wparse ,
+.Nm el_set ,
+.Nm el_wset ,
+.Nm el_get ,
+.Nm el_wget ,
+.Nm el_source ,
+.Nm el_resize ,
+.Nm el_line ,
+.Nm el_wline ,
+.Nm el_insertstr ,
+.Nm el_winsertstr ,
+.Nm el_deletestr ,
+.Nm el_wdeletestr ,
+.Nm history_init ,
+.Nm history_winit ,
+.Nm history_end ,
+.Nm history_wend ,
+.Nm history ,
+.Nm history_w ,
+.Nm tok_init ,
+.Nm tok_winit ,
+.Nm tok_end ,
+.Nm tok_wend ,
+.Nm tok_reset ,
+.Nm tok_wreset ,
+.Nm tok_line ,
+.Nm tok_wline ,
+.Nm tok_str
+.Nm tok_wstr
+.Nd line editor, history and tokenization functions
+.Sh LIBRARY
+.Lb libedit
+.Sh SYNOPSIS
+.In histedit.h
+.Ft EditLine *
+.Fn el_init "const char *prog" "FILE *fin" "FILE *fout" "FILE *ferr"
+.Ft void
+.Fn el_end "EditLine *e"
+.Ft void
+.Fn el_reset "EditLine *e"
+.Ft const char *
+.Fn el_gets "EditLine *e" "int *count"
+.Ft const wchar_t *
+.Fn el_wgets "EditLine *e" "int *count"
+.Ft int
+.Fn el_getc "EditLine *e" "char *ch"
+.Ft int
+.Fn el_wgetc "EditLine *e" "wchar_t *ch"
+.Ft void
+.Fn el_push "EditLine *e" "const char *str"
+.Ft void
+.Fn el_wpush "EditLine *e" "const wchar_t *str"
+.Ft int
+.Fn el_parse "EditLine *e" "int argc" "const char *argv[]"
+.Ft int
+.Fn el_wparse "EditLine *e" "int argc" "const wchar_t *argv[]"
+.Ft int
+.Fn el_set "EditLine *e" "int op" "..."
+.Ft int
+.Fn el_wset "EditLine *e" "int op" "..."
+.Ft int
+.Fn el_get "EditLine *e" "int op" "..."
+.Ft int
+.Fn el_wget "EditLine *e" "int op" "..."
+.Ft int
+.Fn el_source "EditLine *e" "const char *file"
+.Ft void
+.Fn el_resize "EditLine *e"
+.Ft const LineInfo *
+.Fn el_line "EditLine *e"
+.Ft int
+.Fn el_insertstr "EditLine *e" "const char *str"
+.Ft int
+.Fn el_winsertstr "EditLine *e" "const wchar_t *str"
+.Ft void
+.Fn el_deletestr "EditLine *e" "int count"
+.Ft void
+.Fn el_wdeletestr "EditLine *e" "int count"
+.Ft History *
+.Fn history_init
+.Ft HistoryW *
+.Fn history_winit
+.Ft void
+.Fn history_end "History *h"
+.Ft void
+.Fn history_wend "HistoryW *h"
+.Ft int
+.Fn history "History *h" "HistEvent *ev" "int op" "..."
+.Ft int
+.Fn history_w "HistoryW *h" "HistEventW *ev" "int op" "..."
+.Ft Tokenizer *
+.Fn tok_init "const char *IFS"
+.Ft TokenizerW *
+.Fn tok_winit "const wchar_t *IFS"
+.Ft void
+.Fn tok_end "Tokenizer *t"
+.Ft void
+.Fn tok_wend "TokenizerW *t"
+.Ft void
+.Fn tok_reset "Tokenizer *t"
+.Ft void
+.Fn tok_wreset "TokenizerW *t"
+.Ft int
+.Fn tok_line "Tokenizer *t" "const LineInfo *li" "int *argc" "const char **argv[]" "int *cursorc" "int *cursoro"
+.Ft int
+.Fn tok_wline "TokenizerW *t" "const LineInfoW *li" "int *argc" "const wchar_t **argv[]" "int *cursorc" "int *cursoro"
+.Ft int
+.Fn tok_str "Tokenizer *t" "const char *str" "int *argc" "const char **argv[]"
+.Ft int
+.Fn tok_wstr "TokenizerW *t" "const wchar_t *str" "int *argc" "const wchar_t **argv[]"
+.Sh DESCRIPTION
+The
+.Nm
+library provides generic line editing, history and tokenization functions,
+similar to those found in
+.Xr sh 1 .
+.Pp
+These functions are available in the
+.Nm libedit
+library (which needs the
+.Nm libtermcap
+library).
+Programs should be linked with
+.Fl ledit ltermcap .
+.Sh LINE EDITING FUNCTIONS
+The line editing functions use a common data structure,
+.Fa EditLine ,
+which is created by
+.Fn el_init
+and freed by
+.Fn el_end .
+.Pp
+The wide-character functions behave the same way as their narrow
+counterparts.
+.Pp
+The following functions are available:
+.Bl -tag -width 4n
+.It Fn el_init
+Initialise the line editor, and return a data structure
+to be used by all other line editing functions.
+.Fa prog
+is the name of the invoking program, used when reading the
+.Xr editrc 5
+file to determine which settings to use.
+.Fa fin ,
+.Fa fout
+and
+.Fa ferr
+are the input, output, and error streams (respectively) to use.
+In this documentation, references to
+.Dq the tty
+are actually to this input/output stream combination.
+.It Fn el_end
+Clean up and finish with
+.Fa e ,
+assumed to have been created with
+.Fn el_init .
+.It Fn el_reset
+Reset the tty and the parser.
+This should be called after an error which may have upset the tty's
+state.
+.It Fn el_gets
+Read a line from the tty.
+.Fa count
+is modified to contain the number of characters read.
+Returns the line read if successful, or
+.Dv NULL
+if no characters were read or if an error occurred.
+If an error occurred,
+.Fa count
+is set to \-1 and
+.Dv errno
+contains the error code that caused it.
+The return value may not remain valid across calls to
+.Fn el_gets
+and must be copied if the data is to be retained.
+.It Fn el_getc
+Read a character from the tty.
+.Fa ch
+is modified to contain the character read.
+Returns the number of characters read if successful, \-1 otherwise,
+in which case
+.Dv errno
+can be inspected for the cause.
+.It Fn el_push
+Pushes
+.Fa str
+back onto the input stream.
+This is used by the macro expansion mechanism.
+Refer to the description of
+.Ic bind
+.Fl s
+in
+.Xr editrc 5
+for more information.
+.It Fn el_parse
+Parses the
+.Fa argv
+array (which is
+.Fa argc
+elements in size)
+to execute builtin
+.Nm
+commands.
+If the command is prefixed with
+.Dq prog :
+then
+.Fn el_parse
+will only execute the command if
+.Dq prog
+matches the
+.Fa prog
+argument supplied to
+.Fn el_init .
+The return value is
+\-1 if the command is unknown,
+0 if there was no error or
+.Dq prog
+didn't match, or
+1 if the command returned an error.
+Refer to
+.Xr editrc 5
+for more information.
+.It Fn el_set
+Set
+.Nm
+parameters.
+.Fa op
+determines which parameter to set, and each operation has its
+own parameter list.
+.Pp
+The following values for
+.Fa op
+are supported, along with the required argument list:
+.Bl -tag -width 4n
+.It Dv EL_PROMPT , Fa "char *(*f)(EditLine *)"
+Define prompt printing function as
+.Fa f ,
+which is to return a string that contains the prompt.
+.It Dv EL_PROMPT_ESC , Fa "char *(*f)(EditLine *)" , Fa "char c"
+Same as
+.Dv EL_PROMPT ,
+but the
+.Fa c
+argument indicates the start/stop literal prompt character.
+.Pp
+If a start/stop literal character is found in the prompt, the
+character itself
+is not printed, but characters after it are printed directly to the
+terminal without affecting the state of the current line.
+A subsequent second start/stop literal character ends this behavior.
+This is typically used to embed literal escape sequences that change the
+color/style of the terminal in the prompt.
+.Dv 0
+unsets it.
+.It Dv EL_REFRESH
+Re-display the current line on the next terminal line.
+.It Dv EL_RPROMPT , Fa "char *(*f)(EditLine *)"
+Define right side prompt printing function as
+.Fa f ,
+which is to return a string that contains the prompt.
+.It Dv EL_RPROMPT_ESC , Fa "char *(*f)(EditLine *)" , Fa "char c"
+Define the right prompt printing function but with a literal escape character.
+.It Dv EL_TERMINAL , Fa "const char *type"
+Define terminal type of the tty to be
+.Fa type ,
+or to
+.Ev TERM
+if
+.Fa type
+is
+.Dv NULL .
+.It Dv EL_EDITOR , Fa "const char *mode"
+Set editing mode to
+.Fa mode ,
+which must be one of
+.Dq emacs
+or
+.Dq vi .
+.It Dv EL_SIGNAL , Fa "int flag"
+If
+.Fa flag
+is non-zero,
+.Nm
+will install its own signal handler for the following signals when
+reading command input:
+.Dv SIGCONT ,
+.Dv SIGHUP ,
+.Dv SIGINT ,
+.Dv SIGQUIT ,
+.Dv SIGSTOP ,
+.Dv SIGTERM ,
+.Dv SIGTSTP ,
+and
+.Dv SIGWINCH .
+Otherwise, the current signal handlers will be used.
+.It Dv EL_BIND , Fa "const char *" , Fa "..." , Dv NULL
+Perform the
+.Ic bind
+builtin command.
+Refer to
+.Xr editrc 5
+for more information.
+.It Dv EL_ECHOTC , Fa "const char *" , Fa "..." , Dv NULL
+Perform the
+.Ic echotc
+builtin command.
+Refer to
+.Xr editrc 5
+for more information.
+.It Dv EL_SETTC , Fa "const char *" , Fa "..." , Dv NULL
+Perform the
+.Ic settc
+builtin command.
+Refer to
+.Xr editrc 5
+for more information.
+.It Dv EL_SETTY , Fa "const char *" , Fa "..." , Dv NULL
+Perform the
+.Ic setty
+builtin command.
+Refer to
+.Xr editrc 5
+for more information.
+.It Dv EL_TELLTC , Fa "const char *" , Fa "..." , Dv NULL
+Perform the
+.Ic telltc
+builtin command.
+Refer to
+.Xr editrc 5
+for more information.
+.It Dv EL_ADDFN , Fa "const char *name" , Fa "const char *help" , \
+Fa "unsigned char (*func)(EditLine *e, int ch)"
+Add a user defined function,
+.Fn func ,
+referred to as
+.Fa name
+which is invoked when a key which is bound to
+.Fa name
+is entered.
+.Fa help
+is a description of
+.Fa name .
+At invocation time,
+.Fa ch
+is the key which caused the invocation.
+The return value of
+.Fn func
+should be one of:
+.Bl -tag -width "CC_REDISPLAY"
+.It Dv CC_NORM
+Add a normal character.
+.It Dv CC_NEWLINE
+End of line was entered.
+.It Dv CC_EOF
+EOF was entered.
+.It Dv CC_ARGHACK
+Expecting further command input as arguments, do nothing visually.
+.It Dv CC_REFRESH
+Refresh display.
+.It Dv CC_REFRESH_BEEP
+Refresh display, and beep.
+.It Dv CC_CURSOR
+Cursor moved, so update and perform
+.Dv CC_REFRESH .
+.It Dv CC_REDISPLAY
+Redisplay entire input line.
+This is useful if a key binding outputs extra information.
+.It Dv CC_ERROR
+An error occurred.
+Beep, and flush tty.
+.It Dv CC_FATAL
+Fatal error, reset tty to known state.
+.El
+.It Dv EL_HIST , Fa "History *(*func)(History *, int op, ...)" , \
+Fa "const char *ptr"
+Defines which history function to use, which is usually
+.Fn history .
+.Fa ptr
+should be the value returned by
+.Fn history_init .
+.It Dv EL_EDITMODE , Fa "int flag"
+If
+.Fa flag
+is non-zero,
+editing is enabled (the default).
+Note that this is only an indication, and does not
+affect the operation of
+.Nm .
+At this time, it is the caller's responsibility to
+check this
+(using
+.Fn el_get )
+to determine if editing should be enabled or not.
+.It Dv EL_UNBUFFERED , Fa "int flag"
+If
+.Fa flag
+is zero,
+unbuffered mode is disabled (the default).
+In unbuffered mode,
+.Fn el_gets
+will return immediately after processing a single character.
+.It Dv EL_GETCFN , Fa "int (*f)(EditLine *, char *c)"
+Define the character reading function as
+.Fa f ,
+which is to return the number of characters read and store them in
+.Fa c .
+This function is called internally by
+.Fn el_gets
+and
+.Fn el_getc .
+The builtin function can be set or restored with the special function
+name
+.Dq Dv EL_BUILTIN_GETCFN .
+.It Dv EL_CLIENTDATA , Fa "void *data"
+Register
+.Fa data
+to be associated with this EditLine structure.
+It can be retrieved with the corresponding
+.Fn el_get
+call.
+.It Dv EL_SETFP , Fa "int fd" , Fa "FILE *fp"
+Set the current
+.Nm editline
+file pointer for
+.Dq input
+.Fa fd
+=
+.Dv 0 ,
+.Dq output
+.Fa fd
+=
+.Dv 1 ,
+or
+.Dq error
+.Fa fd
+=
+.Dv 2
+from
+.Fa fp .
+.El
+.It Fn el_get
+Get
+.Nm
+parameters.
+.Fa op
+determines which parameter to retrieve into
+.Fa result .
+Returns 0 if successful, \-1 otherwise.
+.Pp
+The following values for
+.Fa op
+are supported, along with actual type of
+.Fa result :
+.Bl -tag -width 4n
+.It Dv EL_PROMPT , Fa "char *(*f)(EditLine *)" , Fa "char *c"
+Return a pointer to the function that displays the prompt in
+.Fa f .
+If
+.Fa c
+is not
+.Dv NULL ,
+return the start/stop literal prompt character in it.
+.It Dv EL_RPROMPT , Fa "char *(*f)(EditLine *)" , Fa "char *c"
+Return a pointer to the function that displays the prompt in
+.Fa f .
+If
+.Fa c
+is not
+.Dv NULL ,
+return the start/stop literal prompt character in it.
+.It Dv EL_EDITOR , Fa "const char **"
+Return the name of the editor, which will be one of
+.Dq emacs
+or
+.Dq vi .
+.It Dv EL_GETTC , Fa "const char *name" , Fa "void *value"
+Return non-zero if
+.Fa name
+is a valid
+.Xr termcap 5
+capability
+and set
+.Fa value
+to the current value of that capability.
+.It Dv EL_SIGNAL , Fa "int *"
+Return non-zero if
+.Nm
+has installed private signal handlers (see
+.Fn el_get
+above).
+.It Dv EL_EDITMODE , Fa "int *"
+Return non-zero if editing is enabled.
+.It Dv EL_GETCFN , Fa "int (**f)(EditLine *, char *)"
+Return a pointer to the function that read characters, which is equal to
+.Dq Dv EL_BUILTIN_GETCFN
+in the case of the default builtin function.
+.It Dv EL_CLIENTDATA , Fa "void **data"
+Retrieve
+.Fa data
+previously registered with the corresponding
+.Fn el_set
+call.
+.It Dv EL_UNBUFFERED , Fa "int"
+Return non-zero if unbuffered mode is enabled.
+.It Dv EL_PREP_TERM , Fa "int"
+Sets or clears terminal editing mode.
+.It Dv EL_GETFP , Fa "int fd", Fa "FILE **fp"
+Return in
+.Fa fp
+the current
+.Nm editline
+file pointer for
+.Dq input
+.Fa fd
+=
+.Dv 0 ,
+.Dq output
+.Fa fd
+=
+.Dv 1 ,
+or
+.Dq error
+.Fa fd
+=
+.Dv 2 .
+.El
+.It Fn el_source
+Initialise
+.Nm
+by reading the contents of
+.Fa file .
+.Fn el_parse
+is called for each line in
+.Fa file .
+If
+.Fa file
+is
+.Dv NULL ,
+try
+.Pa $PWD/.editrc
+then
+.Pa $HOME/.editrc .
+Refer to
+.Xr editrc 5
+for details on the format of
+.Fa file .
+.It Fn el_resize
+Must be called if the terminal size changes.
+If
+.Dv EL_SIGNAL
+has been set with
+.Fn el_set ,
+then this is done automatically.
+Otherwise, it's the responsibility of the application to call
+.Fn el_resize
+on the appropriate occasions.
+.It Fn el_line
+Return the editing information for the current line in a
+.Fa LineInfo
+structure, which is defined as follows:
+.Bd -literal
+typedef struct lineinfo {
+    const char *buffer;    /* address of buffer */
+    const char *cursor;    /* address of cursor */
+    const char *lastchar;  /* address of last character */
+} LineInfo;
+.Ed
+.Pp
+.Fa buffer
+is not NUL terminated.
+This function may be called after
+.Fn el_gets
+to obtain the
+.Fa LineInfo
+structure pertaining to line returned by that function,
+and from within user defined functions added with
+.Dv EL_ADDFN .
+.It Fn el_insertstr
+Insert
+.Fa str
+into the line at the cursor.
+Returns \-1 if
+.Fa str
+is empty or won't fit, and 0 otherwise.
+.It Fn el_deletestr
+Delete
+.Fa count
+characters before the cursor.
+.El
+.Sh HISTORY LIST FUNCTIONS
+The history functions use a common data structure,
+.Fa History ,
+which is created by
+.Fn history_init
+and freed by
+.Fn history_end .
+.Pp
+The following functions are available:
+.Bl -tag -width 4n
+.It Fn history_init
+Initialise the history list, and return a data structure
+to be used by all other history list functions.
+.It Fn history_end
+Clean up and finish with
+.Fa h ,
+assumed to have been created with
+.Fn history_init .
+.It Fn history
+Perform operation
+.Fa op
+on the history list, with optional arguments as needed by the
+operation.
+.Fa ev
+is changed accordingly to operation.
+The following values for
+.Fa op
+are supported, along with the required argument list:
+.Bl -tag -width 4n
+.It Dv H_SETSIZE , Fa "int size"
+Set size of history to
+.Fa size
+elements.
+.It Dv H_GETSIZE
+Get number of events currently in history.
+.It Dv H_END
+Cleans up and finishes with
+.Fa h ,
+assumed to be created with
+.Fn history_init .
+.It Dv H_CLEAR
+Clear the history.
+.It Dv H_FUNC , Fa "void *ptr" , Fa "history_gfun_t first" , \
+Fa "history_gfun_t next" , Fa "history_gfun_t last" , \
+Fa "history_gfun_t prev" , Fa "history_gfun_t curr" , \
+Fa "history_sfun_t set" , Fa "history_vfun_t clear" , \
+Fa "history_efun_t enter" , Fa "history_efun_t add"
+Define functions to perform various history operations.
+.Fa ptr
+is the argument given to a function when it's invoked.
+.It Dv H_FIRST
+Return the first element in the history.
+.It Dv H_LAST
+Return the last element in the history.
+.It Dv H_PREV
+Return the previous element in the history.
+.It Dv H_NEXT
+Return the next element in the history.
+.It Dv H_CURR
+Return the current element in the history.
+.It Dv H_SET
+Set the cursor to point to the requested element.
+.It Dv H_ADD , Fa "const char *str"
+Append
+.Fa str
+to the current element of the history, or perform the
+.Dv H_ENTER
+operation with argument
+.Fa str
+if there is no current element.
+.It Dv H_APPEND , Fa "const char *str"
+Append
+.Fa str
+to the last new element of the history.
+.It Dv H_ENTER , Fa "const char *str"
+Add
+.Fa str
+as a new element to the history, and, if necessary,
+removing the oldest entry to keep the list to the created size.
+If
+.Dv H_SETUNIQUE
+was has been called with a non-zero arguments, the element
+will not be entered into the history if its contents match
+the ones of the current history element.
+If the element is entered
+.Fn history
+returns 1, if it is ignored as a duplicate returns 0.
+Finally
+.Fn history
+returns \-1 if an error occurred.
+.It Dv H_PREV_STR , Fa "const char *str"
+Return the closest previous event that starts with
+.Fa str .
+.It Dv H_NEXT_STR , Fa "const char *str"
+Return the closest next event that starts with
+.Fa str .
+.It Dv H_PREV_EVENT , Fa "int e"
+Return the previous event numbered
+.Fa e .
+.It Dv H_NEXT_EVENT , Fa "int e"
+Return the next event numbered
+.Fa e .
+.It Dv H_LOAD , Fa "const char *file"
+Load the history list stored in
+.Fa file .
+.It Dv H_SAVE , Fa "const char *file"
+Save the history list to
+.Fa file .
+.It Dv H_SETUNIQUE , Fa "int unique"
+Set flag that adjacent identical event strings should not be entered
+into the history.
+.It Dv H_GETUNIQUE
+Retrieve the current setting if adjacent identical elements should
+be entered into the history.
+.It Dv H_DEL , Fa "int e"
+Delete the event numbered
+.Fa e .
+This function is only provided for
+.Xr readline 3
+compatibility.
+The caller is responsible for free'ing the string in the returned
+.Fa HistEvent .
+.El
+.Pp
+.Fn history
+returns \*[Gt]= 0 if the operation
+.Fa op
+succeeds.
+Otherwise, \-1 is returned and
+.Fa ev
+is updated to contain more details about the error.
+.El
+.Sh TOKENIZATION FUNCTIONS
+The tokenization functions use a common data structure,
+.Fa Tokenizer ,
+which is created by
+.Fn tok_init
+and freed by
+.Fn tok_end .
+.Pp
+The following functions are available:
+.Bl -tag -width 4n
+.It Fn tok_init
+Initialise the tokenizer, and return a data structure
+to be used by all other tokenizer functions.
+.Fa IFS
+contains the Input Field Separators, which defaults to
+.Aq space ,
+.Aq tab ,
+and
+.Aq newline
+if
+.Dv NULL .
+.It Fn tok_end
+Clean up and finish with
+.Fa t ,
+assumed to have been created with
+.Fn tok_init .
+.It Fn tok_reset
+Reset the tokenizer state.
+Use after a line has been successfully tokenized
+by
+.Fn tok_line
+or
+.Fn tok_str
+and before a new line is to be tokenized.
+.It Fn tok_line
+Tokenize
+.Fa li ,
+If successful, modify:
+.Fa argv
+to contain the words,
+.Fa argc
+to contain the number of words,
+.Fa cursorc
+(if not
+.Dv NULL )
+to contain the index of the word containing the cursor,
+and
+.Fa cursoro
+(if not
+.Dv NULL )
+to contain the offset within
+.Fa argv[cursorc]
+of the cursor.
+.Pp
+Returns
+0 if successful,
+\-1 for an internal error,
+1 for an unmatched single quote,
+2 for an unmatched double quote,
+and
+3 for a backslash quoted
+.Aq newline .
+A positive exit code indicates that another line should be read
+and tokenization attempted again.
+.
+.It Fn tok_str
+A simpler form of
+.Fn tok_line ;
+.Fa str
+is a NUL terminated string to tokenize.
+.El
+.
+.\"XXX.Sh EXAMPLES
+.\"XXX: provide some examples
+.Sh SEE ALSO
+.Xr sh 1 ,
+.Xr signal 3 ,
+.Xr termcap 3 ,
+.Xr editrc 5 ,
+.Xr termcap 5
+.Sh HISTORY
+The
+.Nm
+library first appeared in
+.Bx 4.4 .
+.Dv CC_REDISPLAY
+appeared in
+.Nx 1.3 .
+.Dv CC_REFRESH_BEEP ,
+.Dv EL_EDITMODE
+and the readline emulation appeared in
+.Nx 1.4 .
+.Dv EL_RPROMPT
+appeared in
+.Nx 1.5 .
+.Sh AUTHORS
+The
+.Nm
+library was written by Christos Zoulas.
+Luke Mewburn wrote this manual and implemented
+.Dv CC_REDISPLAY ,
+.Dv CC_REFRESH_BEEP ,
+.Dv EL_EDITMODE ,
+and
+.Dv EL_RPROMPT .
+Jaromir Dolecek implemented the readline emulation.
+Johny Mattsson implemented wide-character support.
+.Sh BUGS
+At this time, it is the responsibility of the caller to
+check the result of the
+.Dv EL_EDITMODE
+operation of
+.Fn el_get
+(after an
+.Fn el_source
+or
+.Fn el_parse )
+to determine if
+.Nm
+should be used for further input.
+I.e.,
+.Dv EL_EDITMODE
+is purely an indication of the result of the most recent
+.Xr editrc 5
+.Ic edit
+command.

doc/editrc.5

@@ -0,0 +1,491 @@
+.\"	$NetBSD: editrc.5,v 1.26 2012/06/02 14:19:20 njoly Exp $
+.\"
+.\" Copyright (c) 1997-2000 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" This file was contributed to The NetBSD Foundation by Luke Mewburn.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+.\" PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd October 18, 2003
+.Dt EDITRC 5
+.Os
+.Sh NAME
+.Nm editrc
+.Nd configuration file for editline library
+.Sh SYNOPSIS
+.Nm
+.Sh DESCRIPTION
+The
+.Nm
+file defines various settings to be used by the
+.Xr editline 3
+library.
+.Pp
+The format of each line is:
+.Dl [prog:]command [arg [...]]
+.Pp
+.Ar command
+is one of the
+.Xr editline 3
+builtin commands.
+Refer to
+.Sx BUILTIN COMMANDS
+for more information.
+.Pp
+.Ar prog
+is the program name string that a program defines when it calls
+.Xr el_init 3
+to set up
+.Xr editline 3 ,
+which is usually
+.Va argv[0] .
+.Ar command
+will be executed for any program which matches
+.Ar prog .
+.Pp
+.Ar prog
+may also be a
+.Xr regex 3
+style
+regular expression, in which case
+.Ar command
+will be executed for any program that matches the regular expression.
+.Pp
+If
+.Ar prog
+is absent,
+.Ar command
+is executed for all programs.
+.Sh BUILTIN COMMANDS
+The
+.Nm editline
+library has some builtin commands, which affect the way
+that the line editing and history functions operate.
+These are based on similar named builtins present in the
+.Xr tcsh 1
+shell.
+.Pp
+The following builtin commands are available:
+.Bl -tag -width 4n
+.It Ic bind Oo Fl a Oc Oo Fl e Oc Oo Fl k Oc Oo Fl l Oc Oo Fl r Oc \
+Oo Fl s Oc Oo Fl v Oc Oo Ar key Oo Ar command Oc Oc
+Without options, list all bound keys, and the editor command to which
+each is bound.
+If
+.Ar key
+is supplied, show the bindings for
+.Ar key .
+If
+.Ar key command
+is supplied, bind
+.Ar command
+to
+.Ar key .
+Options include:
+.Bl -tag -width 4n
+.It Fl e
+Bind all keys to the standard GNU Emacs-like bindings.
+.It Fl v
+Bind all keys to the standard
+.Xr vi 1 Ns -like
+bindings.
+.It Fl a
+List or change key bindings in the
+.Xr vi 1
+mode alternate (command mode) key map.
+.It Fl k
+.Ar key
+is interpreted as a symbolic arrow key name, which may be one of
+.Sq up ,
+.Sq down ,
+.Sq left
+or
+.Sq right .
+.It Fl l
+List all editor commands and a short description of each.
+.It Fl r
+Remove a key's binding.
+.It Fl s
+.Ar command
+is taken as a literal string and treated as terminal input when
+.Ar key
+is typed.
+Bound keys in
+.Ar command
+are themselves reinterpreted, and this continues for ten levels of
+interpretation.
+.El
+.Pp
+.Ar command
+may be one of the commands documented in
+.Sx "EDITOR COMMANDS"
+below, or another key.
+.Pp
+.Ar key
+and
+.Ar command
+can contain control characters of the form
+.Sm off
+.Sq No ^ Ar character
+.Sm on
+.Po
+e.g.
+.Sq ^A
+.Pc ,
+and the following backslashed escape sequences:
+.Pp
+.Bl -tag -compact -offset indent -width 4n
+.It Ic \ea
+Bell
+.It Ic \eb
+Backspace
+.It Ic \ee
+Escape
+.It Ic \ef
+Formfeed
+.It Ic \en
+Newline
+.It Ic \er
+Carriage return
+.It Ic \et
+Horizontal tab
+.It Ic \ev
+Vertical tab
+.Sm off
+.It Sy \e Ar nnn
+.Sm on
+The ASCII character corresponding to the octal number
+.Ar nnn .
+.El
+.Pp
+.Sq \e
+nullifies the special meaning of the following character,
+if it has any, notably
+.Sq \e
+and
+.Sq ^ .
+.It Ic echotc Oo Fl sv Oc Ar arg Ar ...
+Exercise terminal capabilities given in
+.Ar arg Ar ... .
+If
+.Ar arg
+is
+.Sq baud ,
+.Sq cols ,
+.Sq lines ,
+.Sq rows ,
+.Sq meta ,
+or
+.Sq tabs ,
+the value of that capability is printed, with
+.Dq yes
+or
+.Dq no
+indicating that the terminal does or does not have that capability.
+.Pp
+.Fl s
+returns an empty string for non-existent capabilities, rather than
+causing an error.
+.Fl v
+causes messages to be verbose.
+.It Ic edit Op Li on | Li off
+Enable or disable the
+.Nm editline
+functionality in a program.
+.It Ic history Ar list | Ar size Dv n | Ar unique Dv n
+The
+.Ar list
+command lists all entries in the history.
+The
+.Ar size
+command sets the history size to
+.Dv n
+entries.
+The
+.Ar unique
+command controls if history should keep duplicate entries.
+If
+.Dv n
+is non zero, only keep unique history entries.
+If
+.Dv n
+is zero, then keep all entries (the default).
+.It Ic telltc
+List the values of all the terminal capabilities (see
+.Xr termcap 5 ) .
+.It Ic settc Ar cap Ar val
+Set the terminal capability
+.Ar cap
+to
+.Ar val ,
+as defined in
+.Xr termcap 5 .
+No sanity checking is done.
+.It Ic setty Oo Fl a Oc Oo Fl d Oc Oo Fl q Oc Oo Fl x Oc Oo Ar +mode Oc \
+Oo Ar -mode Oc Oo Ar mode Oc Oo Ar char=c Oc
+Control which tty modes that
+.Nm
+won't allow the user to change.
+.Fl d ,
+.Fl q
+or
+.Fl x
+tells
+.Ic setty
+to act on the
+.Sq edit ,
+.Sq quote
+or
+.Sq execute
+set of tty modes respectively; defaulting to
+.Fl x .
+.Pp
+Without other arguments,
+.Ic setty
+lists the modes in the chosen set which are fixed on
+.Po
+.Sq +mode
+.Pc
+or off
+.Po
+.Sq -mode
+.Pc .
+.Fl a
+lists all tty modes in the chosen set regardless of the setting.
+With
+.Ar +mode ,
+.Ar -mode
+or
+.Ar mode ,
+fixes
+.Ar mode
+on or off or removes control of
+.Ar mode
+in the chosen set.
+.Pp
+.Ic Setty
+can also be used to set tty characters to particular values using
+.Ar char=value .
+If
+.Ar value
+is empty
+then the character is set to
+.Dv _POSIX_VDISABLE .
+.El
+.Sh EDITOR COMMANDS
+The following editor commands are available for use in key bindings:
+.\" Section automatically generated with makelist
+.Bl -tag -width 4n
+.It Ic vi-paste-next
+Vi paste previous deletion to the right of the cursor.
+.It Ic vi-paste-prev
+Vi paste previous deletion to the left of the cursor.
+.It Ic vi-prev-space-word
+Vi move to the previous space delimited word.
+.It Ic vi-prev-word
+Vi move to the previous word.
+.It Ic vi-next-space-word
+Vi move to the next space delimited word.
+.It Ic vi-next-word
+Vi move to the next word.
+.It Ic vi-change-case
+Vi change case of character under the cursor and advance one character.
+.It Ic vi-change-meta
+Vi change prefix command.
+.It Ic vi-insert-at-bol
+Vi enter insert mode at the beginning of line.
+.It Ic vi-replace-char
+Vi replace character under the cursor with the next character typed.
+.It Ic vi-replace-mode
+Vi enter replace mode.
+.It Ic vi-substitute-char
+Vi replace character under the cursor and enter insert mode.
+.It Ic vi-substitute-line
+Vi substitute entire line.
+.It Ic vi-change-to-eol
+Vi change to end of line.
+.It Ic vi-insert
+Vi enter insert mode.
+.It Ic vi-add
+Vi enter insert mode after the cursor.
+.It Ic vi-add-at-eol
+Vi enter insert mode at end of line.
+.It Ic vi-delete-meta
+Vi delete prefix command.
+.It Ic vi-end-word
+Vi move to the end of the current space delimited word.
+.It Ic vi-to-end-word
+Vi move to the end of the current word.
+.It Ic vi-undo
+Vi undo last change.
+.It Ic vi-command-mode
+Vi enter command mode (use alternative key bindings).
+.It Ic vi-zero
+Vi move to the beginning of line.
+.It Ic vi-delete-prev-char
+Vi move to previous character (backspace).
+.It Ic vi-list-or-eof
+Vi list choices for completion or indicate end of file if empty line.
+.It Ic vi-kill-line-prev
+Vi cut from beginning of line to cursor.
+.It Ic vi-search-prev
+Vi search history previous.
+.It Ic vi-search-next
+Vi search history next.
+.It Ic vi-repeat-search-next
+Vi repeat current search in the same search direction.
+.It Ic vi-repeat-search-prev
+Vi repeat current search in the opposite search direction.
+.It Ic vi-next-char
+Vi move to the character specified next.
+.It Ic vi-prev-char
+Vi move to the character specified previous.
+.It Ic vi-to-next-char
+Vi move up to the character specified next.
+.It Ic vi-to-prev-char
+Vi move up to the character specified previous.
+.It Ic vi-repeat-next-char
+Vi repeat current character search in the same search direction.
+.It Ic vi-repeat-prev-char
+Vi repeat current character search in the opposite search direction.
+.It Ic em-delete-or-list
+Delete character under cursor or list completions if at end of line.
+.It Ic em-delete-next-word
+Cut from cursor to end of current word.
+.It Ic em-yank
+Paste cut buffer at cursor position.
+.It Ic em-kill-line
+Cut the entire line and save in cut buffer.
+.It Ic em-kill-region
+Cut area between mark and cursor and save in cut buffer.
+.It Ic em-copy-region
+Copy area between mark and cursor to cut buffer.
+.It Ic em-gosmacs-transpose
+Exchange the two characters before the cursor.
+.It Ic em-next-word
+Move next to end of current word.
+.It Ic em-upper-case
+Uppercase the characters from cursor to end of current word.
+.It Ic em-capitol-case
+Capitalize the characters from cursor to end of current word.
+.It Ic em-lower-case
+Lowercase the characters from cursor to end of current word.
+.It Ic em-set-mark
+Set the mark at cursor.
+.It Ic em-exchange-mark
+Exchange the cursor and mark.
+.It Ic em-universal-argument
+Universal argument (argument times 4).
+.It Ic em-meta-next
+Add 8th bit to next character typed.
+.It Ic em-toggle-overwrite
+Switch from insert to overwrite mode or vice versa.
+.It Ic em-copy-prev-word
+Copy current word to cursor.
+.It Ic em-inc-search-next
+Emacs incremental next search.
+.It Ic em-inc-search-prev
+Emacs incremental reverse search.
+.It Ic ed-end-of-file
+Indicate end of file.
+.It Ic ed-insert
+Add character to the line.
+.It Ic ed-delete-prev-word
+Delete from beginning of current word to cursor.
+.It Ic ed-delete-next-char
+Delete character under cursor.
+.It Ic ed-kill-line
+Cut to the end of line.
+.It Ic ed-move-to-end
+Move cursor to the end of line.
+.It Ic ed-move-to-beg
+Move cursor to the beginning of line.
+.It Ic ed-transpose-chars
+Exchange the character to the left of the cursor with the one under it.
+.It Ic ed-next-char
+Move to the right one character.
+.It Ic ed-prev-word
+Move to the beginning of the current word.
+.It Ic ed-prev-char
+Move to the left one character.
+.It Ic ed-quoted-insert
+Add the next character typed verbatim.
+.It Ic ed-digit
+Adds to argument or enters a digit.
+.It Ic ed-argument-digit
+Digit that starts argument.
+.It Ic ed-unassigned
+Indicates unbound character.
+.It Ic ed-tty-sigint
+Tty interrupt character.
+.It Ic ed-tty-dsusp
+Tty delayed suspend character.
+.It Ic ed-tty-flush-output
+Tty flush output characters.
+.It Ic ed-tty-sigquit
+Tty quit character.
+.It Ic ed-tty-sigtstp
+Tty suspend character.
+.It Ic ed-tty-stop-output
+Tty disallow output characters.
+.It Ic ed-tty-start-output
+Tty allow output characters.
+.It Ic ed-newline
+Execute command.
+.It Ic ed-delete-prev-char
+Delete the character to the left of the cursor.
+.It Ic ed-clear-screen
+Clear screen leaving current line at the top.
+.It Ic ed-redisplay
+Redisplay everything.
+.It Ic ed-start-over
+Erase current line and start from scratch.
+.It Ic ed-sequence-lead-in
+First character in a bound sequence.
+.It Ic ed-prev-history
+Move to the previous history line.
+.It Ic ed-next-history
+Move to the next history line.
+.It Ic ed-search-prev-history
+Search previous in history for a line matching the current.
+.It Ic ed-search-next-history
+Search next in history for a line matching the current.
+.It Ic ed-prev-line
+Move up one line.
+.It Ic ed-next-line
+Move down one line.
+.It Ic ed-command
+Editline extended command.
+.El
+.\" End of section automatically generated with makelist
+.Sh SEE ALSO
+.Xr editline 3 ,
+.Xr regex 3 ,
+.Xr termcap 5
+.Sh AUTHORS
+The
+.Nm editline
+library was written by Christos Zoulas,
+and this manual was written by Luke Mewburn,
+with some sections inspired by
+.Xr tcsh 1 .

inputrc

@@ -0,0 +1,67 @@
+# /etc/inputrc - global inputrc for libreadline
+# See readline(3readline) and `info rluserman' for more information.
+
+# Be 8 bit clean.
+set input-meta on
+set output-meta on
+
+# To allow the use of 8bit-characters like the german umlauts, uncomment
+# the line below. However this makes the meta key not work as a meta key,
+# which is annoying to those which don't need to type in 8-bit characters.
+
+# set convert-meta off
+
+# try to enable the application keypad when it is called.  Some systems
+# need this to enable the arrow keys.
+# set enable-keypad on
+
+# see /usr/share/doc/bash/inputrc.arrows for other codes of arrow keys
+
+# do not bell on tab-completion
+# set bell-style none
+# set bell-style visible
+
+# some defaults / modifications for the emacs mode
+$if mode=emacs
+
+# allow the use of the Home/End keys
+"\e[1~": beginning-of-line
+"\e[4~": end-of-line
+
+# allow the use of the Delete/Insert keys
+"\e[3~": delete-char
+"\e[2~": quoted-insert
+
+# mappings for "page up" and "page down" to step to the beginning/end
+# of the history
+# "\e[5~": beginning-of-history
+# "\e[6~": end-of-history
+
+# alternate mappings for "page up" and "page down" to search the history
+# "\e[5~": history-search-backward
+# "\e[6~": history-search-forward
+
+# mappings for Ctrl-left-arrow and Ctrl-right-arrow for word moving
+"\e[1;5C": forward-word
+"\e[1;5D": backward-word
+"\e[5C": forward-word
+"\e[5D": backward-word
+"\e\e[C": forward-word
+"\e\e[D": backward-word
+
+$if term=rxvt
+"\e[7~": beginning-of-line
+"\e[8~": end-of-line
+"\eOc": forward-word
+"\eOd": backward-word
+$endif
+
+# for non RH/Debian xterm, can't hurt for RH/Debian xterm
+# "\eOH": beginning-of-line
+# "\eOF": end-of-line
+
+# for freebsd console
+# "\e[H": beginning-of-line
+# "\e[F": end-of-line
+
+$endif

libedit.xcodeproj/project.pbxproj

@@ -0,0 +1,689 @@
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+		1DEB914A08733D8E0010E9CD /* Build configuration list for PBXNativeTarget "libedit" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				1DEB914C08733D8E0010E9CD /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		1DEB914E08733D8E0010E9CD /* Build configuration list for PBXProject "libedit" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				1DEB915008733D8E0010E9CD /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		4C61598F104F1EF300BF0A10 /* Build configuration list for PBXAggregateTarget "all" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				4C615988104F1E8800BF0A10 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		4C6159CA1050608D00BF0A10 /* Build configuration list for PBXAggregateTarget "make lists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				4C6159C51050604600BF0A10 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		4C6159F61050616A00BF0A10 /* Build configuration list for PBXNativeTarget "libedit-static" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				4C6159D11050614000BF0A10 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 08FB7793FE84155DC02AAC07 /* Project object */;
+}

local/common.h

@@ -0,0 +1,39 @@
+/* Automatically generated file, do not edit */
+#ifndef _h_common_c
+#define _h_common_c
+protected el_action_t	ed_end_of_file (EditLine *, Int);
+protected el_action_t	ed_insert (EditLine *, Int);
+protected el_action_t	ed_delete_prev_word (EditLine *, Int);
+protected el_action_t	ed_delete_next_char (EditLine *, Int);
+protected el_action_t	ed_kill_line (EditLine *, Int);
+protected el_action_t	ed_move_to_end (EditLine *, Int);
+protected el_action_t	ed_move_to_beg (EditLine *, Int);
+protected el_action_t	ed_transpose_chars (EditLine *, Int);
+protected el_action_t	ed_next_char (EditLine *, Int);
+protected el_action_t	ed_prev_word (EditLine *, Int);
+protected el_action_t	ed_prev_char (EditLine *, Int);
+protected el_action_t	ed_quoted_insert (EditLine *, Int);
+protected el_action_t	ed_digit (EditLine *, Int);
+protected el_action_t	ed_argument_digit (EditLine *, Int);
+protected el_action_t	ed_unassigned (EditLine *, Int);
+protected el_action_t	ed_tty_sigint (EditLine *, Int);
+protected el_action_t	ed_tty_dsusp (EditLine *, Int);
+protected el_action_t	ed_tty_flush_output (EditLine *, Int);
+protected el_action_t	ed_tty_sigquit (EditLine *, Int);
+protected el_action_t	ed_tty_sigtstp (EditLine *, Int);
+protected el_action_t	ed_tty_stop_output (EditLine *, Int);
+protected el_action_t	ed_tty_start_output (EditLine *, Int);
+protected el_action_t	ed_newline (EditLine *, Int);
+protected el_action_t	ed_delete_prev_char (EditLine *, Int);
+protected el_action_t	ed_clear_screen (EditLine *, Int);
+protected el_action_t	ed_redisplay (EditLine *, Int);
+protected el_action_t	ed_start_over (EditLine *, Int);
+protected el_action_t	ed_sequence_lead_in (EditLine *, Int);
+protected el_action_t	ed_prev_history (EditLine *, Int);
+protected el_action_t	ed_next_history (EditLine *, Int);
+protected el_action_t	ed_search_prev_history (EditLine *, Int);
+protected el_action_t	ed_search_next_history (EditLine *, Int);
+protected el_action_t	ed_prev_line (EditLine *, Int);
+protected el_action_t	ed_next_line (EditLine *, Int);
+protected el_action_t	ed_command (EditLine *, Int);
+#endif /* _h_common_c */

local/emacs.h

@@ -0,0 +1,24 @@
+/* Automatically generated file, do not edit */
+#ifndef _h_emacs_c
+#define _h_emacs_c
+protected el_action_t	em_delete_or_list (EditLine *, Int);
+protected el_action_t	em_delete_next_word (EditLine *, Int);
+protected el_action_t	em_yank (EditLine *, Int);
+protected el_action_t	em_kill_line (EditLine *, Int);
+protected el_action_t	em_kill_region (EditLine *, Int);
+protected el_action_t	em_copy_region (EditLine *, Int);
+protected el_action_t	em_gosmacs_transpose (EditLine *, Int);
+protected el_action_t	em_next_word (EditLine *, Int);
+protected el_action_t	em_upper_case (EditLine *, Int);
+protected el_action_t	em_capitol_case (EditLine *, Int);
+protected el_action_t	em_lower_case (EditLine *, Int);
+protected el_action_t	em_set_mark (EditLine *, Int);
+protected el_action_t	em_exchange_mark (EditLine *, Int);
+protected el_action_t	em_universal_argument (EditLine *, Int);
+protected el_action_t	em_meta_next (EditLine *, Int);
+protected el_action_t	em_toggle_overwrite (EditLine *, Int);
+protected el_action_t	em_copy_prev_word (EditLine *, Int);
+protected el_action_t	em_inc_search_next (EditLine *, Int);
+protected el_action_t	em_inc_search_prev (EditLine *, Int);
+protected el_action_t	em_delete_prev_char (EditLine *, Int);
+#endif /* _h_emacs_c */

local/fcns.c

@@ -0,0 +1,58 @@
+/* Automatically generated file, do not edit */
+#include "config.h"
+#include "el.h"
+private const el_func_t el_func[] = {
+    ed_argument_digit,         ed_clear_screen,           
+    ed_command,                ed_delete_next_char,       
+    ed_delete_prev_char,       ed_delete_prev_word,       
+    ed_digit,                  ed_end_of_file,            
+    ed_insert,                 ed_kill_line,              
+    ed_move_to_beg,            ed_move_to_end,            
+    ed_newline,                ed_next_char,              
+    ed_next_history,           ed_next_line,              
+    ed_prev_char,              ed_prev_history,           
+    ed_prev_line,              ed_prev_word,              
+    ed_quoted_insert,          ed_redisplay,              
+    ed_search_next_history,    ed_search_prev_history,    
+    ed_sequence_lead_in,       ed_start_over,             
+    ed_transpose_chars,        ed_tty_dsusp,              
+    ed_tty_flush_output,       ed_tty_sigint,             
+    ed_tty_sigquit,            ed_tty_sigtstp,            
+    ed_tty_start_output,       ed_tty_stop_output,        
+    ed_unassigned,             em_capitol_case,           
+    em_copy_prev_word,         em_copy_region,            
+    em_delete_next_word,       em_delete_or_list,         
+    em_delete_prev_char,       em_exchange_mark,          
+    em_gosmacs_transpose,      em_inc_search_next,        
+    em_inc_search_prev,        em_kill_line,              
+    em_kill_region,            em_lower_case,             
+    em_meta_next,              em_next_word,              
+    em_set_mark,               em_toggle_overwrite,       
+    em_universal_argument,     em_upper_case,             
+    em_yank,                   vi_add,                    
+    vi_add_at_eol,             vi_alias,                  
+    vi_change_case,            vi_change_meta,            
+    vi_change_to_eol,          vi_command_mode,           
+    vi_comment_out,            vi_delete_meta,            
+    vi_delete_prev_char,       vi_end_big_word,           
+    vi_end_word,               vi_histedit,               
+    vi_history_word,           vi_insert,                 
+    vi_insert_at_bol,          vi_kill_line_prev,         
+    vi_list_or_eof,            vi_match,                  
+    vi_next_big_word,          vi_next_char,              
+    vi_next_word,              vi_paste_next,             
+    vi_paste_prev,             vi_prev_big_word,          
+    vi_prev_char,              vi_prev_word,              
+    vi_redo,                   vi_repeat_next_char,       
+    vi_repeat_prev_char,       vi_repeat_search_next,     
+    vi_repeat_search_prev,     vi_replace_char,           
+    vi_replace_mode,           vi_search_next,            
+    vi_search_prev,            vi_substitute_char,        
+    vi_substitute_line,        vi_to_column,              
+    vi_to_history_line,        vi_to_next_char,           
+    vi_to_prev_char,           vi_undo,                   
+    vi_undo_line,              vi_yank,                   
+    vi_yank_end,               vi_zero,                   
+};
+
+protected const el_func_t* func__get(void) { return el_func; }

local/fcns.h

@@ -0,0 +1,110 @@
+/* Automatically generated file, do not edit */
+#ifndef _h_fcns_c
+#define _h_fcns_c
+#define	ED_ARGUMENT_DIGIT             	  0
+#define	ED_CLEAR_SCREEN               	  1
+#define	ED_COMMAND                    	  2
+#define	ED_DELETE_NEXT_CHAR           	  3
+#define	ED_DELETE_PREV_CHAR           	  4
+#define	ED_DELETE_PREV_WORD           	  5
+#define	ED_DIGIT                      	  6
+#define	ED_END_OF_FILE                	  7
+#define	ED_INSERT                     	  8
+#define	ED_KILL_LINE                  	  9
+#define	ED_MOVE_TO_BEG                	 10
+#define	ED_MOVE_TO_END                	 11
+#define	ED_NEWLINE                    	 12
+#define	ED_NEXT_CHAR                  	 13
+#define	ED_NEXT_HISTORY               	 14
+#define	ED_NEXT_LINE                  	 15
+#define	ED_PREV_CHAR                  	 16
+#define	ED_PREV_HISTORY               	 17
+#define	ED_PREV_LINE                  	 18
+#define	ED_PREV_WORD                  	 19
+#define	ED_QUOTED_INSERT              	 20
+#define	ED_REDISPLAY                  	 21
+#define	ED_SEARCH_NEXT_HISTORY        	 22
+#define	ED_SEARCH_PREV_HISTORY        	 23
+#define	ED_SEQUENCE_LEAD_IN           	 24
+#define	ED_START_OVER                 	 25
+#define	ED_TRANSPOSE_CHARS            	 26
+#define	ED_TTY_DSUSP                  	 27
+#define	ED_TTY_FLUSH_OUTPUT           	 28
+#define	ED_TTY_SIGINT                 	 29
+#define	ED_TTY_SIGQUIT                	 30
+#define	ED_TTY_SIGTSTP                	 31
+#define	ED_TTY_START_OUTPUT           	 32
+#define	ED_TTY_STOP_OUTPUT            	 33
+#define	ED_UNASSIGNED                 	 34
+#define	EM_CAPITOL_CASE               	 35
+#define	EM_COPY_PREV_WORD             	 36
+#define	EM_COPY_REGION                	 37
+#define	EM_DELETE_NEXT_WORD           	 38
+#define	EM_DELETE_OR_LIST             	 39
+#define	EM_DELETE_PREV_CHAR           	 40
+#define	EM_EXCHANGE_MARK              	 41
+#define	EM_GOSMACS_TRANSPOSE          	 42
+#define	EM_INC_SEARCH_NEXT            	 43
+#define	EM_INC_SEARCH_PREV            	 44
+#define	EM_KILL_LINE                  	 45
+#define	EM_KILL_REGION                	 46
+#define	EM_LOWER_CASE                 	 47
+#define	EM_META_NEXT                  	 48
+#define	EM_NEXT_WORD                  	 49
+#define	EM_SET_MARK                   	 50
+#define	EM_TOGGLE_OVERWRITE           	 51
+#define	EM_UNIVERSAL_ARGUMENT         	 52
+#define	EM_UPPER_CASE                 	 53
+#define	EM_YANK                       	 54
+#define	VI_ADD                        	 55
+#define	VI_ADD_AT_EOL                 	 56
+#define	VI_ALIAS                      	 57
+#define	VI_CHANGE_CASE                	 58
+#define	VI_CHANGE_META                	 59
+#define	VI_CHANGE_TO_EOL              	 60
+#define	VI_COMMAND_MODE               	 61
+#define	VI_COMMENT_OUT                	 62
+#define	VI_DELETE_META                	 63
+#define	VI_DELETE_PREV_CHAR           	 64
+#define	VI_END_BIG_WORD               	 65
+#define	VI_END_WORD                   	 66
+#define	VI_HISTEDIT                   	 67
+#define	VI_HISTORY_WORD               	 68
+#define	VI_INSERT                     	 69
+#define	VI_INSERT_AT_BOL              	 70
+#define	VI_KILL_LINE_PREV             	 71
+#define	VI_LIST_OR_EOF                	 72
+#define	VI_MATCH                      	 73
+#define	VI_NEXT_BIG_WORD              	 74
+#define	VI_NEXT_CHAR                  	 75
+#define	VI_NEXT_WORD                  	 76
+#define	VI_PASTE_NEXT                 	 77
+#define	VI_PASTE_PREV                 	 78
+#define	VI_PREV_BIG_WORD              	 79
+#define	VI_PREV_CHAR                  	 80
+#define	VI_PREV_WORD                  	 81
+#define	VI_REDO                       	 82
+#define	VI_REPEAT_NEXT_CHAR           	 83
+#define	VI_REPEAT_PREV_CHAR           	 84
+#define	VI_REPEAT_SEARCH_NEXT         	 85
+#define	VI_REPEAT_SEARCH_PREV         	 86
+#define	VI_REPLACE_CHAR               	 87
+#define	VI_REPLACE_MODE               	 88
+#define	VI_SEARCH_NEXT                	 89
+#define	VI_SEARCH_PREV                	 90
+#define	VI_SUBSTITUTE_CHAR            	 91
+#define	VI_SUBSTITUTE_LINE            	 92
+#define	VI_TO_COLUMN                  	 93
+#define	VI_TO_HISTORY_LINE            	 94
+#define	VI_TO_NEXT_CHAR               	 95
+#define	VI_TO_PREV_CHAR               	 96
+#define	VI_UNDO                       	 97
+#define	VI_UNDO_LINE                  	 98
+#define	VI_YANK                       	 99
+#define	VI_YANK_END                   	100
+#define	VI_ZERO                       	101
+#define	EL_NUM_FCNS                   	102
+#define	EL_EOF                   	255
+typedef el_action_t (*el_func_t)(EditLine *, Int);
+protected const el_func_t* func__get(void);
+#endif /* _h_fcns_c */

local/help.c

@@ -0,0 +1,212 @@
+/* Automatically generated file, do not edit */
+#include "config.h"
+#include "el.h"
+#include "chartype.h"
+private const struct el_bindings_t el_func_help[] = {
+    { STR("vi-paste-next"),          VI_PASTE_NEXT,                
+      STR("Vi paste previous deletion to the right of the cursor") },
+    { STR("vi-paste-prev"),          VI_PASTE_PREV,                
+      STR("Vi paste previous deletion to the left of the cursor") },
+    { STR("vi-prev-big-word"),       VI_PREV_BIG_WORD,             
+      STR("Vi move to the previous space delimited word") },
+    { STR("vi-prev-word"),           VI_PREV_WORD,                 
+      STR("Vi move to the previous word") },
+    { STR("vi-next-big-word"),       VI_NEXT_BIG_WORD,             
+      STR("Vi move to the next space delimited word") },
+    { STR("vi-next-word"),           VI_NEXT_WORD,                 
+      STR("Vi move to the next word") },
+    { STR("vi-change-case"),         VI_CHANGE_CASE,               
+      STR("Vi change case of character under the cursor and advance one character") },
+    { STR("vi-change-meta"),         VI_CHANGE_META,               
+      STR("Vi change prefix command") },
+    { STR("vi-insert-at-bol"),       VI_INSERT_AT_BOL,             
+      STR("Vi enter insert mode at the beginning of line") },
+    { STR("vi-replace-char"),        VI_REPLACE_CHAR,              
+      STR("Vi replace character under the cursor with the next character typed") },
+    { STR("vi-replace-mode"),        VI_REPLACE_MODE,              
+      STR("Vi enter replace mode") },
+    { STR("vi-substitute-char"),     VI_SUBSTITUTE_CHAR,           
+      STR("Vi replace character under the cursor and enter insert mode") },
+    { STR("vi-substitute-line"),     VI_SUBSTITUTE_LINE,           
+      STR("Vi substitute entire line") },
+    { STR("vi-change-to-eol"),       VI_CHANGE_TO_EOL,             
+      STR("Vi change to end of line") },
+    { STR("vi-insert"),              VI_INSERT,                    
+      STR("Vi enter insert mode") },
+    { STR("vi-add"),                 VI_ADD,                       
+      STR("Vi enter insert mode after the cursor") },
+    { STR("vi-add-at-eol"),          VI_ADD_AT_EOL,                
+      STR("Vi enter insert mode at end of line") },
+    { STR("vi-delete-meta"),         VI_DELETE_META,               
+      STR("Vi delete prefix command") },
+    { STR("vi-end-big-word"),        VI_END_BIG_WORD,              
+      STR("Vi move to the end of the current space delimited word") },
+    { STR("vi-end-word"),            VI_END_WORD,                  
+      STR("Vi move to the end of the current word") },
+    { STR("vi-undo"),                VI_UNDO,                      
+      STR("Vi undo last change") },
+    { STR("vi-command-mode"),        VI_COMMAND_MODE,              
+      STR("Vi enter command mode (use alternative key bindings)") },
+    { STR("vi-zero"),                VI_ZERO,                      
+      STR("Vi move to the beginning of line") },
+    { STR("vi-delete-prev-char"),    VI_DELETE_PREV_CHAR,          
+      STR("Vi move to previous character (backspace)") },
+    { STR("vi-list-or-eof"),         VI_LIST_OR_EOF,               
+      STR("Vi list choices for completion or indicate end of file if empty line") },
+    { STR("vi-kill-line-prev"),      VI_KILL_LINE_PREV,            
+      STR("Vi cut from beginning of line to cursor") },
+    { STR("vi-search-prev"),         VI_SEARCH_PREV,               
+      STR("Vi search history previous") },
+    { STR("vi-search-next"),         VI_SEARCH_NEXT,               
+      STR("Vi search history next") },
+    { STR("vi-repeat-search-next"),  VI_REPEAT_SEARCH_NEXT,        
+      STR("Vi repeat current search in the same search direction") },
+    { STR("vi-repeat-search-prev"),  VI_REPEAT_SEARCH_PREV,        
+      STR("Vi repeat current search in the opposite search direction") },
+    { STR("vi-next-char"),           VI_NEXT_CHAR,                 
+      STR("Vi move to the character specified next") },
+    { STR("vi-prev-char"),           VI_PREV_CHAR,                 
+      STR("Vi move to the character specified previous") },
+    { STR("vi-to-next-char"),        VI_TO_NEXT_CHAR,              
+      STR("Vi move up to the character specified next") },
+    { STR("vi-to-prev-char"),        VI_TO_PREV_CHAR,              
+      STR("Vi move up to the character specified previous") },
+    { STR("vi-repeat-next-char"),    VI_REPEAT_NEXT_CHAR,          
+      STR("Vi repeat current character search in the same search direction") },
+    { STR("vi-repeat-prev-char"),    VI_REPEAT_PREV_CHAR,          
+      STR("Vi repeat current character search in the opposite search direction") },
+    { STR("vi-match"),               VI_MATCH,                     
+      STR("Vi go to matching () {} or []") },
+    { STR("vi-undo-line"),           VI_UNDO_LINE,                 
+      STR("Vi undo all changes to line") },
+    { STR("vi-to-column"),           VI_TO_COLUMN,                 
+      STR("Vi go to specified column") },
+    { STR("vi-yank-end"),            VI_YANK_END,                  
+      STR("Vi yank to end of line") },
+    { STR("vi-yank"),                VI_YANK,                      
+      STR("Vi yank") },
+    { STR("vi-comment-out"),         VI_COMMENT_OUT,               
+      STR("Vi comment out current command") },
+    { STR("vi-alias"),               VI_ALIAS,                     
+      STR("Vi include shell alias") },
+    { STR("vi-to-history-line"),     VI_TO_HISTORY_LINE,           
+      STR("Vi go to specified history file line.") },
+    { STR("vi-histedit"),            VI_HISTEDIT,                  
+      STR("Vi edit history line with vi") },
+    { STR("vi-history-word"),        VI_HISTORY_WORD,              
+      STR("Vi append word from previous input line") },
+    { STR("vi-redo"),                VI_REDO,                      
+      STR("Vi redo last non-motion command") },
+    { STR("em-delete-or-list"),      EM_DELETE_OR_LIST,            
+      STR("Delete character under cursor or list completions if at end of line") },
+    { STR("em-delete-next-word"),    EM_DELETE_NEXT_WORD,          
+      STR("Cut from cursor to end of current word") },
+    { STR("em-yank"),                EM_YANK,                      
+      STR("Paste cut buffer at cursor position") },
+    { STR("em-kill-line"),           EM_KILL_LINE,                 
+      STR("Cut the entire line and save in cut buffer") },
+    { STR("em-kill-region"),         EM_KILL_REGION,               
+      STR("Cut area between mark and cursor and save in cut buffer") },
+    { STR("em-copy-region"),         EM_COPY_REGION,               
+      STR("Copy area between mark and cursor to cut buffer") },
+    { STR("em-gosmacs-transpose"),   EM_GOSMACS_TRANSPOSE,         
+      STR("Exchange the two characters before the cursor") },
+    { STR("em-next-word"),           EM_NEXT_WORD,                 
+      STR("Move next to end of current word") },
+    { STR("em-upper-case"),          EM_UPPER_CASE,                
+      STR("Uppercase the characters from cursor to end of current word") },
+    { STR("em-capitol-case"),        EM_CAPITOL_CASE,              
+      STR("Capitalize the characters from cursor to end of current word") },
+    { STR("em-lower-case"),          EM_LOWER_CASE,                
+      STR("Lowercase the characters from cursor to end of current word") },
+    { STR("em-set-mark"),            EM_SET_MARK,                  
+      STR("Set the mark at cursor") },
+    { STR("em-exchange-mark"),       EM_EXCHANGE_MARK,             
+      STR("Exchange the cursor and mark") },
+    { STR("em-universal-argument"),  EM_UNIVERSAL_ARGUMENT,        
+      STR("Universal argument (argument times 4)") },
+    { STR("em-meta-next"),           EM_META_NEXT,                 
+      STR("Add 8th bit to next character typed") },
+    { STR("em-toggle-overwrite"),    EM_TOGGLE_OVERWRITE,          
+      STR("Switch from insert to overwrite mode or vice versa") },
+    { STR("em-copy-prev-word"),      EM_COPY_PREV_WORD,            
+      STR("Copy current word to cursor") },
+    { STR("em-inc-search-next"),     EM_INC_SEARCH_NEXT,           
+      STR("Emacs incremental next search") },
+    { STR("em-inc-search-prev"),     EM_INC_SEARCH_PREV,           
+      STR("Emacs incremental reverse search") },
+    { STR("em-delete-prev-char"),    EM_DELETE_PREV_CHAR,          
+      STR("Delete the character to the left of the cursor") },
+    { STR("ed-end-of-file"),         ED_END_OF_FILE,               
+      STR("Indicate end of file") },
+    { STR("ed-insert"),              ED_INSERT,                    
+      STR("Add character to the line") },
+    { STR("ed-delete-prev-word"),    ED_DELETE_PREV_WORD,          
+      STR("Delete from beginning of current word to cursor") },
+    { STR("ed-delete-next-char"),    ED_DELETE_NEXT_CHAR,          
+      STR("Delete character under cursor") },
+    { STR("ed-kill-line"),           ED_KILL_LINE,                 
+      STR("Cut to the end of line") },
+    { STR("ed-move-to-end"),         ED_MOVE_TO_END,               
+      STR("Move cursor to the end of line") },
+    { STR("ed-move-to-beg"),         ED_MOVE_TO_BEG,               
+      STR("Move cursor to the beginning of line") },
+    { STR("ed-transpose-chars"),     ED_TRANSPOSE_CHARS,           
+      STR("Exchange the character to the left of the cursor with the one under it") },
+    { STR("ed-next-char"),           ED_NEXT_CHAR,                 
+      STR("Move to the right one character") },
+    { STR("ed-prev-word"),           ED_PREV_WORD,                 
+      STR("Move to the beginning of the current word") },
+    { STR("ed-prev-char"),           ED_PREV_CHAR,                 
+      STR("Move to the left one character") },
+    { STR("ed-quoted-insert"),       ED_QUOTED_INSERT,             
+      STR("Add the next character typed verbatim") },
+    { STR("ed-digit"),               ED_DIGIT,                     
+      STR("Adds to argument or enters a digit") },
+    { STR("ed-argument-digit"),      ED_ARGUMENT_DIGIT,            
+      STR("Digit that starts argument") },
+    { STR("ed-unassigned"),          ED_UNASSIGNED,                
+      STR("Indicates unbound character") },
+    { STR("ed-tty-sigint"),          ED_TTY_SIGINT,                
+      STR("Tty interrupt character") },
+    { STR("ed-tty-dsusp"),           ED_TTY_DSUSP,                 
+      STR("Tty delayed suspend character") },
+    { STR("ed-tty-flush-output"),    ED_TTY_FLUSH_OUTPUT,          
+      STR("Tty flush output characters") },
+    { STR("ed-tty-sigquit"),         ED_TTY_SIGQUIT,               
+      STR("Tty quit character") },
+    { STR("ed-tty-sigtstp"),         ED_TTY_SIGTSTP,               
+      STR("Tty suspend character") },
+    { STR("ed-tty-stop-output"),     ED_TTY_STOP_OUTPUT,           
+      STR("Tty disallow output characters") },
+    { STR("ed-tty-start-output"),    ED_TTY_START_OUTPUT,          
+      STR("Tty allow output characters") },
+    { STR("ed-newline"),             ED_NEWLINE,                   
+      STR("Execute command") },
+    { STR("ed-delete-prev-char"),    ED_DELETE_PREV_CHAR,          
+      STR("Delete the character to the left of the cursor") },
+    { STR("ed-clear-screen"),        ED_CLEAR_SCREEN,              
+      STR("Clear screen leaving current line at the top") },
+    { STR("ed-redisplay"),           ED_REDISPLAY,                 
+      STR("Redisplay everything") },
+    { STR("ed-start-over"),          ED_START_OVER,                
+      STR("Erase current line and start from scratch") },
+    { STR("ed-sequence-lead-in"),    ED_SEQUENCE_LEAD_IN,          
+      STR("First character in a bound sequence") },
+    { STR("ed-prev-history"),        ED_PREV_HISTORY,              
+      STR("Move to the previous history line") },
+    { STR("ed-next-history"),        ED_NEXT_HISTORY,              
+      STR("Move to the next history line") },
+    { STR("ed-search-prev-history"), ED_SEARCH_PREV_HISTORY,       
+      STR("Search previous in history for a line matching the current") },
+    { STR("ed-search-next-history"), ED_SEARCH_NEXT_HISTORY,       
+      STR("Search next in history for a line matching the current") },
+    { STR("ed-prev-line"),           ED_PREV_LINE,                 
+      STR("Move up one line") },
+    { STR("ed-next-line"),           ED_NEXT_LINE,                 
+      STR("Move down one line") },
+    { STR("ed-command"),             ED_COMMAND,                   
+      STR("Editline extended command") },
+};
+
+protected const el_bindings_t* help__get(void){ return el_func_help; }

local/help.h

@@ -0,0 +1,5 @@
+/* Automatically generated file, do not edit */
+#ifndef _h_help_c
+#define _h_help_c
+protected const el_bindings_t *help__get(void);
+#endif /* _h_help_c */

local/historyn.c

@@ -0,0 +1,4 @@
+#include "config.h"
+#undef WIDECHAR
+#define NARROWCHAR
+#include "./history.c"

local/libedit.pc

@@ -0,0 +1,12 @@
+prefix=/usr/local
+exec_prefix=${prefix}
+libdir=${exec_prefix}/lib
+includedir=${prefix}/include
+
+Name: libedit
+Description: command line editor library provides generic line editing, history, and tokenization functions.
+Version: 3.0
+Requires:
+Libs: -L${libdir} -ledit -lcurses 
+Cflags: -I${includedir} -I${includedir}/editline
+

local/libedit.plist

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>OpenSourceProject</key>
+	<string>libedit</string>
+	<key>OpenSourceVersion</key>
+	<string>3.0</string>
+	<key>OpenSourceWebsiteURL</key>
+	<string>http://www.thrysoee.dk/editline/</string>
+	<key>OpenSourceURL</key>
+	<string>http://www.thrysoee.dk/editline/libedit-20121213-3.0.tar.gz</string>
+	<key>OpenSourceSHA1</key>
+	<string>2f20bc835c1282b6815c4c8e2f852d6fe4318f7a</string>
+	<key>OpenSourceImportDate</key>
+	<string>2012-01-15</string>
+	<key>OpenSourceLicense</key>
+	<string>BSD</string>
+	<key>OpenSourceLicenseFile</key>
+	<string>libedit.txt</string>
+	<key>OpenSourceModifications</key>
+	<array>
+		<string>Additional malloc fixes (7866382)</string>
+		<string>filecomplete.c: Fix rl_line_buffer (9869665)</string>
+		<string>filecomplete.c: Implement _el_fn_sh_complete (22276828)</string>
+		<string>filecomplete.c: Adjust dequoting_func types because of 9869665</string>
+		<string>filecomplete.c: Fix quoted_match leak</string>
+	</array>
+</dict>
+</plist>

local/tokenizern.c

@@ -0,0 +1,4 @@
+#include "config.h"
+#undef WIDECHAR
+#define NARROWCHAR
+#include "./tokenizer.c"

local/vi.h

@@ -0,0 +1,51 @@
+/* Automatically generated file, do not edit */
+#ifndef _h_vi_c
+#define _h_vi_c
+protected el_action_t	vi_paste_next (EditLine *, Int);
+protected el_action_t	vi_paste_prev (EditLine *, Int);
+protected el_action_t	vi_prev_big_word (EditLine *, Int);
+protected el_action_t	vi_prev_word (EditLine *, Int);
+protected el_action_t	vi_next_big_word (EditLine *, Int);
+protected el_action_t	vi_next_word (EditLine *, Int);
+protected el_action_t	vi_change_case (EditLine *, Int);
+protected el_action_t	vi_change_meta (EditLine *, Int);
+protected el_action_t	vi_insert_at_bol (EditLine *, Int);
+protected el_action_t	vi_replace_char (EditLine *, Int);
+protected el_action_t	vi_replace_mode (EditLine *, Int);
+protected el_action_t	vi_substitute_char (EditLine *, Int);
+protected el_action_t	vi_substitute_line (EditLine *, Int);
+protected el_action_t	vi_change_to_eol (EditLine *, Int);
+protected el_action_t	vi_insert (EditLine *, Int);
+protected el_action_t	vi_add (EditLine *, Int);
+protected el_action_t	vi_add_at_eol (EditLine *, Int);
+protected el_action_t	vi_delete_meta (EditLine *, Int);
+protected el_action_t	vi_end_big_word (EditLine *, Int);
+protected el_action_t	vi_end_word (EditLine *, Int);
+protected el_action_t	vi_undo (EditLine *, Int);
+protected el_action_t	vi_command_mode (EditLine *, Int);
+protected el_action_t	vi_zero (EditLine *, Int);
+protected el_action_t	vi_delete_prev_char (EditLine *, Int);
+protected el_action_t	vi_list_or_eof (EditLine *, Int);
+protected el_action_t	vi_kill_line_prev (EditLine *, Int);
+protected el_action_t	vi_search_prev (EditLine *, Int);
+protected el_action_t	vi_search_next (EditLine *, Int);
+protected el_action_t	vi_repeat_search_next (EditLine *, Int);
+protected el_action_t	vi_repeat_search_prev (EditLine *, Int);
+protected el_action_t	vi_next_char (EditLine *, Int);
+protected el_action_t	vi_prev_char (EditLine *, Int);
+protected el_action_t	vi_to_next_char (EditLine *, Int);
+protected el_action_t	vi_to_prev_char (EditLine *, Int);
+protected el_action_t	vi_repeat_next_char (EditLine *, Int);
+protected el_action_t	vi_repeat_prev_char (EditLine *, Int);
+protected el_action_t	vi_match (EditLine *, Int);
+protected el_action_t	vi_undo_line (EditLine *, Int);
+protected el_action_t	vi_to_column (EditLine *, Int);
+protected el_action_t	vi_yank_end (EditLine *, Int);
+protected el_action_t	vi_yank (EditLine *, Int);
+protected el_action_t	vi_comment_out (EditLine *, Int);
+protected el_action_t	vi_alias (EditLine *, Int);
+protected el_action_t	vi_to_history_line (EditLine *, Int);
+protected el_action_t	vi_histedit (EditLine *, Int);
+protected el_action_t	vi_history_word (EditLine *, Int);
+protected el_action_t	vi_redo (EditLine *, Int);
+#endif /* _h_vi_c */

src/Makefile.am

@@ -0,0 +1,57 @@
+
+BUILT_SOURCES = vi.h emacs.h common.h fcns.h help.h fcns.c help.c
+if WIDECHAR
+BUILT_SOURCES += tokenizern.c historyn.c
+endif
+
+AHDR= vi.h emacs.h common.h 
+ASRC= $(srcdir)/vi.c $(srcdir)/emacs.c $(srcdir)/common.c
+
+vi.h: Makefile $(srcdir)/vi.c
+	AWK=$(AWK) sh $(srcdir)/makelist -h $(srcdir)/vi.c > $@
+
+emacs.h: Makefile $(srcdir)/emacs.c
+	AWK=$(AWK) sh $(srcdir)/makelist -h $(srcdir)/emacs.c > $@
+
+common.h: Makefile $(srcdir)/common.c
+	AWK=$(AWK) sh $(srcdir)/makelist -h $(srcdir)/common.c > $@
+
+fcns.h: Makefile $(AHDR)
+	AWK=$(AWK) sh $(srcdir)/makelist -fh $(AHDR) > $@
+
+help.h: Makefile $(ASRC)
+	AWK=$(AWK) sh $(srcdir)/makelist -bh $(ASRC) > $@
+
+fcns.c: Makefile $(AHDR)
+	AWK=$(AWK) sh $(srcdir)/makelist -fc $(AHDR) > $@
+
+help.c: Makefile $(ASRC)
+	AWK=$(AWK) sh $(srcdir)/makelist -bc $(ASRC) > $@
+
+tokenizern.c: Makefile $(srcdir)/tokenizer.c
+	AWK=$(AWK) sh $(srcdir)/makelist -n $(srcdir)/tokenizer.c > $@
+
+historyn.c: Makefile $(srcdir)/history.c
+	AWK=$(AWK) sh $(srcdir)/makelist -n $(srcdir)/history.c > $@
+
+CLEANFILES = $(BUILT_SOURCES)
+
+lib_LTLIBRARIES    = libedit.la
+libedit_la_SOURCES = chared.c common.c el.c emacs.c hist.c keymacro.c map.c chartype.c parse.c \
+							prompt.c read.c refresh.c search.c sig.c terminal.c tty.c vi.c \
+							fgetln.c strlcat.c strlcpy.c unvis.c vis.c wcsdup.c tokenizer.c \
+							history.c filecomplete.c readline.c chared.h el.h hist.h \
+							histedit.h keymacro.h map.h chartype.h parse.h prompt.h read.h refresh.h \
+							search.h sig.h sys.h terminal.h tty.h vis.h filecomplete.h \
+							editline/readline.h
+if WIDECHAR
+libedit_la_SOURCES += eln.c
+endif
+
+EXTRA_DIST = makelist shlib_version
+nobase_include_HEADERS = histedit.h editline/readline.h
+
+nodist_libedit_la_SOURCES = $(BUILT_SOURCES)
+
+libedit_la_LDFLAGS = -no-undefined -version-info $(LT_VERSION)
+

src/Makefile.in

@@ -0,0 +1,724 @@
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+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
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+	AWK=$(AWK) sh $(srcdir)/makelist -n $(srcdir)/tokenizer.c > $@
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+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:

src/chared.c

@@ -0,0 +1,740 @@
+/*	$NetBSD: chared.c,v 1.37 2012/07/18 17:12:39 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#if !defined(lint) && !defined(SCCSID)
+#if 0
+static char sccsid[] = "@(#)chared.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: chared.c,v 1.37 2012/07/18 17:12:39 christos Exp $");
+#endif
+#endif /* not lint && not SCCSID */
+
+/*
+ * chared.c: Character editor utilities
+ */
+#include <stdlib.h>
+#include "el.h"
+
+private void ch__clearmacro (EditLine *);
+
+/* value to leave unused in line buffer */
+#define	EL_LEAVE	2
+
+/* cv_undo():
+ *	Handle state for the vi undo command
+ */
+protected void
+cv_undo(EditLine *el)
+{
+	c_undo_t *vu = &el->el_chared.c_undo;
+	c_redo_t *r = &el->el_chared.c_redo;
+	size_t size;
+
+	/* Save entire line for undo */
+	size = (size_t)(el->el_line.lastchar - el->el_line.buffer);
+	vu->len = (ssize_t)size;
+	vu->cursor = (int)(el->el_line.cursor - el->el_line.buffer);
+	(void)memcpy(vu->buf, el->el_line.buffer, size * sizeof(*vu->buf));
+
+	/* save command info for redo */
+	r->count = el->el_state.doingarg ? el->el_state.argument : 0;
+	r->action = el->el_chared.c_vcmd.action;
+	r->pos = r->buf;
+	r->cmd = el->el_state.thiscmd;
+	r->ch = el->el_state.thisch;
+}
+
+/* cv_yank():
+ *	Save yank/delete data for paste
+ */
+protected void
+cv_yank(EditLine *el, const Char *ptr, int size)
+{
+	c_kill_t *k = &el->el_chared.c_kill;
+
+	(void)memcpy(k->buf, ptr, (size_t)size * sizeof(*k->buf));
+	k->last = k->buf + size;
+}
+
+
+/* c_insert():
+ *	Insert num characters
+ */
+protected void
+c_insert(EditLine *el, int num)
+{
+	Char *cp;
+
+	if (el->el_line.lastchar + num >= el->el_line.limit) {
+		if (!ch_enlargebufs(el, (size_t)num))
+			return;		/* can't go past end of buffer */
+	}
+
+	if (el->el_line.cursor < el->el_line.lastchar) {
+		/* if I must move chars */
+		for (cp = el->el_line.lastchar; cp >= el->el_line.cursor; cp--)
+			cp[num] = *cp;
+	}
+	el->el_line.lastchar += num;
+}
+
+
+/* c_delafter():
+ *	Delete num characters after the cursor
+ */
+protected void
+c_delafter(EditLine *el, int num)
+{
+
+	if (el->el_line.cursor + num > el->el_line.lastchar)
+		num = (int)(el->el_line.lastchar - el->el_line.cursor);
+
+	if (el->el_map.current != el->el_map.emacs) {
+		cv_undo(el);
+		cv_yank(el, el->el_line.cursor, num);
+	}
+
+	if (num > 0) {
+		Char *cp;
+
+		for (cp = el->el_line.cursor; cp <= el->el_line.lastchar; cp++)
+			*cp = cp[num];
+
+		el->el_line.lastchar -= num;
+	}
+}
+
+
+/* c_delafter1():
+ *	Delete the character after the cursor, do not yank
+ */
+protected void
+c_delafter1(EditLine *el)
+{
+	Char *cp;
+
+	for (cp = el->el_line.cursor; cp <= el->el_line.lastchar; cp++)
+		*cp = cp[1];
+
+	el->el_line.lastchar--;
+}
+
+
+/* c_delbefore():
+ *	Delete num characters before the cursor
+ */
+protected void
+c_delbefore(EditLine *el, int num)
+{
+
+	if (el->el_line.cursor - num < el->el_line.buffer)
+		num = (int)(el->el_line.cursor - el->el_line.buffer);
+
+	if (el->el_map.current != el->el_map.emacs) {
+		cv_undo(el);
+		cv_yank(el, el->el_line.cursor - num, num);
+	}
+
+	if (num > 0) {
+		Char *cp;
+
+		for (cp = el->el_line.cursor - num;
+		    cp <= el->el_line.lastchar;
+		    cp++)
+			*cp = cp[num];
+
+		el->el_line.lastchar -= num;
+	}
+}
+
+
+/* c_delbefore1():
+ *	Delete the character before the cursor, do not yank
+ */
+protected void
+c_delbefore1(EditLine *el)
+{
+	Char *cp;
+
+	for (cp = el->el_line.cursor - 1; cp <= el->el_line.lastchar; cp++)
+		*cp = cp[1];
+
+	el->el_line.lastchar--;
+}
+
+
+/* ce__isword():
+ *	Return if p is part of a word according to emacs
+ */
+protected int
+ce__isword(Int p)
+{
+	return Isalnum(p) || Strchr(STR("*?_-.[]~="), p) != NULL;
+}
+
+
+/* cv__isword():
+ *	Return if p is part of a word according to vi
+ */
+protected int
+cv__isword(Int p)
+{
+	if (Isalnum(p) || p == '_')
+		return 1;
+	if (Isgraph(p))
+		return 2;
+	return 0;
+}
+
+
+/* cv__isWord():
+ *	Return if p is part of a big word according to vi
+ */
+protected int
+cv__isWord(Int p)
+{
+	return !Isspace(p);
+}
+
+
+/* c__prev_word():
+ *	Find the previous word
+ */
+protected Char *
+c__prev_word(Char *p, Char *low, int n, int (*wtest)(Int))
+{
+	p--;
+
+	while (n--) {
+		while ((p >= low) && !(*wtest)(*p))
+			p--;
+		while ((p >= low) && (*wtest)(*p))
+			p--;
+	}
+
+	/* cp now points to one character before the word */
+	p++;
+	if (p < low)
+		p = low;
+	/* cp now points where we want it */
+	return p;
+}
+
+
+/* c__next_word():
+ *	Find the next word
+ */
+protected Char *
+c__next_word(Char *p, Char *high, int n, int (*wtest)(Int))
+{
+	while (n--) {
+		while ((p < high) && !(*wtest)(*p))
+			p++;
+		while ((p < high) && (*wtest)(*p))
+			p++;
+	}
+	if (p > high)
+		p = high;
+	/* p now points where we want it */
+	return p;
+}
+
+/* cv_next_word():
+ *	Find the next word vi style
+ */
+protected Char *
+cv_next_word(EditLine *el, Char *p, Char *high, int n, int (*wtest)(Int))
+{
+	int test;
+
+	while (n--) {
+		test = (*wtest)(*p);
+		while ((p < high) && (*wtest)(*p) == test)
+			p++;
+		/*
+		 * vi historically deletes with cw only the word preserving the
+		 * trailing whitespace! This is not what 'w' does..
+		 */
+		if (n || el->el_chared.c_vcmd.action != (DELETE|INSERT))
+			while ((p < high) && Isspace(*p))
+				p++;
+	}
+
+	/* p now points where we want it */
+	if (p > high)
+		return high;
+	else
+		return p;
+}
+
+
+/* cv_prev_word():
+ *	Find the previous word vi style
+ */
+protected Char *
+cv_prev_word(Char *p, Char *low, int n, int (*wtest)(Int))
+{
+	int test;
+
+	p--;
+	while (n--) {
+		while ((p > low) && Isspace(*p))
+			p--;
+		test = (*wtest)(*p);
+		while ((p >= low) && (*wtest)(*p) == test)
+			p--;
+	}
+	p++;
+
+	/* p now points where we want it */
+	if (p < low)
+		return low;
+	else
+		return p;
+}
+
+
+/* cv_delfini():
+ *	Finish vi delete action
+ */
+protected void
+cv_delfini(EditLine *el)
+{
+	int size;
+	int action = el->el_chared.c_vcmd.action;
+
+	if (action & INSERT)
+		el->el_map.current = el->el_map.key;
+
+	if (el->el_chared.c_vcmd.pos == 0)
+		/* sanity */
+		return;
+
+	size = (int)(el->el_line.cursor - el->el_chared.c_vcmd.pos);
+	if (size == 0)
+		size = 1;
+	el->el_line.cursor = el->el_chared.c_vcmd.pos;
+	if (action & YANK) {
+		if (size > 0)
+			cv_yank(el, el->el_line.cursor, size);
+		else
+			cv_yank(el, el->el_line.cursor + size, -size);
+	} else {
+		if (size > 0) {
+			c_delafter(el, size);
+			re_refresh_cursor(el);
+		} else  {
+			c_delbefore(el, -size);
+			el->el_line.cursor += size;
+		}
+	}
+	el->el_chared.c_vcmd.action = NOP;
+}
+
+
+/* cv__endword():
+ *	Go to the end of this word according to vi
+ */
+protected Char *
+cv__endword(Char *p, Char *high, int n, int (*wtest)(Int))
+{
+	int test;
+
+	p++;
+
+	while (n--) {
+		while ((p < high) && Isspace(*p))
+			p++;
+
+		test = (*wtest)(*p);
+		while ((p < high) && (*wtest)(*p) == test)
+			p++;
+	}
+	p--;
+	return p;
+}
+
+/* ch_init():
+ *	Initialize the character editor
+ */
+protected int
+ch_init(EditLine *el)
+{
+	c_macro_t *ma = &el->el_chared.c_macro;
+
+	el->el_line.buffer		= el_malloc(EL_BUFSIZ *
+	    sizeof(*el->el_line.buffer));
+	if (el->el_line.buffer == NULL)
+		return -1;
+
+	(void) memset(el->el_line.buffer, 0, EL_BUFSIZ *
+	    sizeof(*el->el_line.buffer));
+	el->el_line.cursor		= el->el_line.buffer;
+	el->el_line.lastchar		= el->el_line.buffer;
+	el->el_line.limit		= &el->el_line.buffer[EL_BUFSIZ - EL_LEAVE];
+
+	el->el_chared.c_undo.buf	= el_malloc(EL_BUFSIZ *
+	    sizeof(*el->el_chared.c_undo.buf));
+	if (el->el_chared.c_undo.buf == NULL)
+		return -1;
+	(void) memset(el->el_chared.c_undo.buf, 0, EL_BUFSIZ *
+	    sizeof(*el->el_chared.c_undo.buf));
+	el->el_chared.c_undo.len	= -1;
+	el->el_chared.c_undo.cursor	= 0;
+	el->el_chared.c_redo.buf	= el_malloc(EL_BUFSIZ *
+	    sizeof(*el->el_chared.c_redo.buf));
+	if (el->el_chared.c_redo.buf == NULL)
+		return -1;
+	el->el_chared.c_redo.pos	= el->el_chared.c_redo.buf;
+	el->el_chared.c_redo.lim	= el->el_chared.c_redo.buf + EL_BUFSIZ;
+	el->el_chared.c_redo.cmd	= ED_UNASSIGNED;
+
+	el->el_chared.c_vcmd.action	= NOP;
+	el->el_chared.c_vcmd.pos	= el->el_line.buffer;
+
+	el->el_chared.c_kill.buf	= el_malloc(EL_BUFSIZ *
+	    sizeof(*el->el_chared.c_kill.buf));
+	if (el->el_chared.c_kill.buf == NULL)
+		return -1;
+	(void) memset(el->el_chared.c_kill.buf, 0, EL_BUFSIZ *
+	    sizeof(*el->el_chared.c_kill.buf));
+	el->el_chared.c_kill.mark	= el->el_line.buffer;
+	el->el_chared.c_kill.last	= el->el_chared.c_kill.buf;
+	el->el_chared.c_resizefun	= NULL;
+	el->el_chared.c_resizearg	= NULL;
+
+	el->el_map.current		= el->el_map.key;
+
+	el->el_state.inputmode		= MODE_INSERT; /* XXX: save a default */
+	el->el_state.doingarg		= 0;
+	el->el_state.metanext		= 0;
+	el->el_state.argument		= 1;
+	el->el_state.lastcmd		= ED_UNASSIGNED;
+
+	ma->level	= -1;
+	ma->offset	= 0;
+	ma->macro	= el_malloc(EL_MAXMACRO * sizeof(*ma->macro));
+	if (ma->macro == NULL)
+		return -1;
+	return 0;
+}
+
+/* ch_reset():
+ *	Reset the character editor
+ */
+protected void
+ch_reset(EditLine *el, int mclear)
+{
+	el->el_line.cursor		= el->el_line.buffer;
+	el->el_line.lastchar		= el->el_line.buffer;
+
+	el->el_chared.c_undo.len	= -1;
+	el->el_chared.c_undo.cursor	= 0;
+
+	el->el_chared.c_vcmd.action	= NOP;
+	el->el_chared.c_vcmd.pos	= el->el_line.buffer;
+
+	el->el_chared.c_kill.mark	= el->el_line.buffer;
+
+	el->el_map.current		= el->el_map.key;
+
+	el->el_state.inputmode		= MODE_INSERT; /* XXX: save a default */
+	el->el_state.doingarg		= 0;
+	el->el_state.metanext		= 0;
+	el->el_state.argument		= 1;
+	el->el_state.lastcmd		= ED_UNASSIGNED;
+
+	el->el_history.eventno		= 0;
+
+	if (mclear)
+		ch__clearmacro(el);
+}
+
+private void
+ch__clearmacro(EditLine *el)
+{
+	c_macro_t *ma = &el->el_chared.c_macro;
+	while (ma->level >= 0)
+		el_free(ma->macro[ma->level--]);
+}
+
+/* ch_enlargebufs():
+ *	Enlarge line buffer to be able to hold twice as much characters.
+ *	Returns 1 if successful, 0 if not.
+ */
+protected int
+ch_enlargebufs(EditLine *el, size_t addlen)
+{
+	size_t sz, newsz;
+	Char *newbuffer, *oldbuf, *oldkbuf;
+
+	sz = (size_t)(el->el_line.limit - el->el_line.buffer + EL_LEAVE);
+	newsz = sz * 2;
+	/*
+	 * If newly required length is longer than current buffer, we need
+	 * to make the buffer big enough to hold both old and new stuff.
+	 */
+	if (addlen > sz) {
+		while(newsz - sz < addlen)
+			newsz *= 2;
+	}
+
+	/*
+	 * Reallocate line buffer.
+	 */
+	newbuffer = el_realloc(el->el_line.buffer, newsz * sizeof(*newbuffer));
+	if (!newbuffer)
+		return 0;
+
+	/* zero the newly added memory, leave old data in */
+	(void) memset(&newbuffer[sz], 0, (newsz - sz) * sizeof(*newbuffer));
+	    
+	oldbuf = el->el_line.buffer;
+
+	el->el_line.buffer = newbuffer;
+	el->el_line.cursor = newbuffer + (el->el_line.cursor - oldbuf);
+	el->el_line.lastchar = newbuffer + (el->el_line.lastchar - oldbuf);
+	/* don't set new size until all buffers are enlarged */
+	el->el_line.limit  = &newbuffer[sz - EL_LEAVE];
+
+	/*
+	 * Reallocate kill buffer.
+	 */
+	newbuffer = el_realloc(el->el_chared.c_kill.buf, newsz *
+	    sizeof(*newbuffer));
+	if (!newbuffer)
+		return 0;
+
+	/* zero the newly added memory, leave old data in */
+	(void) memset(&newbuffer[sz], 0, (newsz - sz) * sizeof(*newbuffer));
+
+	oldkbuf = el->el_chared.c_kill.buf;
+
+	el->el_chared.c_kill.buf = newbuffer;
+	el->el_chared.c_kill.last = newbuffer +
+					(el->el_chared.c_kill.last - oldkbuf);
+	el->el_chared.c_kill.mark = el->el_line.buffer +
+					(el->el_chared.c_kill.mark - oldbuf);
+
+	/*
+	 * Reallocate undo buffer.
+	 */
+	newbuffer = el_realloc(el->el_chared.c_undo.buf,
+	    newsz * sizeof(*newbuffer));
+	if (!newbuffer)
+		return 0;
+
+	/* zero the newly added memory, leave old data in */
+	(void) memset(&newbuffer[sz], 0, (newsz - sz) * sizeof(*newbuffer));
+	el->el_chared.c_undo.buf = newbuffer;
+
+	newbuffer = el_realloc(el->el_chared.c_redo.buf,
+	    newsz * sizeof(*newbuffer));
+	if (!newbuffer)
+		return 0;
+	el->el_chared.c_redo.pos = newbuffer +
+			(el->el_chared.c_redo.pos - el->el_chared.c_redo.buf);
+	el->el_chared.c_redo.lim = newbuffer +
+			(el->el_chared.c_redo.lim - el->el_chared.c_redo.buf);
+	el->el_chared.c_redo.buf = newbuffer;
+	
+	if (!hist_enlargebuf(el, sz, newsz))
+		return 0;
+
+	/* Safe to set enlarged buffer size */
+	el->el_line.limit  = &el->el_line.buffer[newsz - EL_LEAVE];
+	if (el->el_chared.c_resizefun)
+		(*el->el_chared.c_resizefun)(el, el->el_chared.c_resizearg);
+	return 1;
+}
+
+/* ch_end():
+ *	Free the data structures used by the editor
+ */
+protected void
+ch_end(EditLine *el)
+{
+	el_free(el->el_line.buffer);
+	el->el_line.buffer = NULL;
+	el->el_line.limit = NULL;
+	el_free(el->el_chared.c_undo.buf);
+	el->el_chared.c_undo.buf = NULL;
+	el_free(el->el_chared.c_redo.buf);
+	el->el_chared.c_redo.buf = NULL;
+	el->el_chared.c_redo.pos = NULL;
+	el->el_chared.c_redo.lim = NULL;
+	el->el_chared.c_redo.cmd = ED_UNASSIGNED;
+	el_free(el->el_chared.c_kill.buf);
+	el->el_chared.c_kill.buf = NULL;
+	ch_reset(el, 1);
+	el_free(el->el_chared.c_macro.macro);
+	el->el_chared.c_macro.macro = NULL;
+}
+
+
+/* el_insertstr():
+ *	Insert string at cursorI
+ */
+public int
+FUN(el,insertstr)(EditLine *el, const Char *s)
+{
+	size_t len;
+
+	if (s == NULL || (len = Strlen(s)) == 0)
+		return -1;
+	if (el->el_line.lastchar + len >= el->el_line.limit) {
+		if (!ch_enlargebufs(el, len))
+			return -1;
+	}
+
+	c_insert(el, (int)len);
+	while (*s)
+		*el->el_line.cursor++ = *s++;
+	return 0;
+}
+
+
+/* el_deletestr():
+ *	Delete num characters before the cursor
+ */
+public void
+el_deletestr(EditLine *el, int n)
+{
+	if (n <= 0)
+		return;
+
+	if (el->el_line.cursor < &el->el_line.buffer[n])
+		return;
+
+	c_delbefore(el, n);		/* delete before dot */
+	el->el_line.cursor -= n;
+	if (el->el_line.cursor < el->el_line.buffer)
+		el->el_line.cursor = el->el_line.buffer;
+}
+
+/* c_gets():
+ *	Get a string
+ */
+protected int
+c_gets(EditLine *el, Char *buf, const Char *prompt)
+{
+	Char ch;
+	ssize_t len;
+	Char *cp = el->el_line.buffer;
+
+	if (prompt) {
+		len = (ssize_t)Strlen(prompt);
+		(void)memcpy(cp, prompt, (size_t)len * sizeof(*cp));
+		cp += len;
+	}
+	len = 0;
+
+	for (;;) {
+		el->el_line.cursor = cp;
+		*cp = ' ';
+		el->el_line.lastchar = cp + 1;
+		re_refresh(el);
+
+		if (FUN(el,getc)(el, &ch) != 1) {
+			ed_end_of_file(el, 0);
+			len = -1;
+			break;
+		}
+
+		switch (ch) {
+
+		case 0010:	/* Delete and backspace */
+		case 0177:
+			if (len == 0) {
+				len = -1;
+				break;
+			}
+			cp--;
+			continue;
+
+		case 0033:	/* ESC */
+		case '\r':	/* Newline */
+		case '\n':
+			buf[len] = ch;
+			break;
+
+		default:
+			if (len >= (ssize_t)(EL_BUFSIZ - 16))
+				terminal_beep(el);
+			else {
+				buf[len++] = ch;
+				*cp++ = ch;
+			}
+			continue;
+		}
+		break;
+	}
+
+	el->el_line.buffer[0] = '\0';
+	el->el_line.lastchar = el->el_line.buffer;
+	el->el_line.cursor = el->el_line.buffer;
+	return (int)len;
+}
+
+
+/* c_hpos():
+ *	Return the current horizontal position of the cursor
+ */
+protected int
+c_hpos(EditLine *el)
+{
+	Char *ptr;
+
+	/*
+	 * Find how many characters till the beginning of this line.
+	 */
+	if (el->el_line.cursor == el->el_line.buffer)
+		return 0;
+	else {
+		for (ptr = el->el_line.cursor - 1;
+		     ptr >= el->el_line.buffer && *ptr != '\n';
+		     ptr--)
+			continue;
+		return (int)(el->el_line.cursor - ptr - 1);
+	}
+}
+
+protected int
+ch_resizefun(EditLine *el, el_zfunc_t f, void *a)
+{
+	el->el_chared.c_resizefun = f;
+	el->el_chared.c_resizearg = a;
+	return 0;
+}

src/chared.h

@@ -0,0 +1,178 @@
+/*	$NetBSD: chared.h,v 1.21 2010/08/28 15:44:59 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)chared.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.chared.h: Character editor interface
+ */
+#ifndef _h_el_chared
+#define	_h_el_chared
+
+#include <ctype.h>
+#include <string.h>
+
+#include "histedit.h"
+
+#define	EL_MAXMACRO	10
+
+/*
+ * This is an issue of basic "vi" look-and-feel. Defining VI_MOVE works
+ * like real vi: i.e. the transition from command<->insert modes moves
+ * the cursor.
+ *
+ * On the other hand we really don't want to move the cursor, because
+ * all the editing commands don't include the character under the cursor.
+ * Probably the best fix is to make all the editing commands aware of
+ * this fact.
+ */
+#define	VI_MOVE
+
+
+typedef struct c_macro_t {
+	int	  level;
+	int	  offset;
+	Char	**macro;
+} c_macro_t;
+
+/*
+ * Undo information for vi - no undo in emacs (yet)
+ */
+typedef struct c_undo_t {
+	ssize_t	 len;			/* length of saved line */
+	int	 cursor;		/* position of saved cursor */
+	Char	*buf;			/* full saved text */
+} c_undo_t;
+
+/* redo for vi */
+typedef struct c_redo_t {
+	Char	*buf;			/* redo insert key sequence */
+	Char	*pos;
+	Char	*lim;
+	el_action_t	cmd;		/* command to redo */
+	/*
+	 * 8519376: Use an unnamed union to force the size of c_redo_t to
+	 * be the same, independent of the size of Char.
+	 */
+	union {
+	    Char	ch;		/* char that invoked it */
+	    wchar_t	dummy;
+	};
+	int	count;
+	int	action;			/* from cv_action() */
+} c_redo_t;
+
+/*
+ * Current action information for vi
+ */
+typedef struct c_vcmd_t {
+	int	 action;
+	Char	*pos;
+} c_vcmd_t;
+
+/*
+ * Kill buffer for emacs
+ */
+typedef struct c_kill_t {
+	Char	*buf;
+	Char	*last;
+	Char	*mark;
+} c_kill_t;
+
+typedef void (*el_zfunc_t)(EditLine *, void *);
+
+/*
+ * Note that we use both data structures because the user can bind
+ * commands from both editors!
+ */
+typedef struct el_chared_t {
+	c_undo_t	c_undo;
+	c_kill_t	c_kill;
+	c_redo_t	c_redo;
+	c_vcmd_t	c_vcmd;
+	c_macro_t	c_macro;
+	el_zfunc_t	c_resizefun;
+	void *		c_resizearg;
+} el_chared_t;
+
+
+#define	STRQQ		"\"\""
+
+#define	isglob(a)	(strchr("*[]?", (a)) != NULL)
+
+#define	NOP		0x00
+#define	DELETE		0x01
+#define	INSERT		0x02
+#define	YANK		0x04
+
+#define	CHAR_FWD	(+1)
+#define	CHAR_BACK	(-1)
+
+#define	MODE_INSERT	0
+#define	MODE_REPLACE	1
+#define	MODE_REPLACE_1	2
+
+#include "common.h"
+#include "vi.h"
+#include "emacs.h"
+#include "search.h"
+#include "fcns.h"
+
+
+protected int	 cv__isword(Int);
+protected int	 cv__isWord(Int);
+protected void	 cv_delfini(EditLine *);
+protected Char	*cv__endword(Char *, Char *, int, int (*)(Int));
+protected int	 ce__isword(Int);
+protected void	 cv_undo(EditLine *);
+protected void	 cv_yank(EditLine *, const Char *, int);
+protected Char	*cv_next_word(EditLine*, Char *, Char *, int, int (*)(Int));
+protected Char	*cv_prev_word(Char *, Char *, int, int (*)(Int));
+protected Char	*c__next_word(Char *, Char *, int, int (*)(Int));
+protected Char	*c__prev_word(Char *, Char *, int, int (*)(Int));
+protected void	 c_insert(EditLine *, int);
+protected void	 c_delbefore(EditLine *, int);
+protected void	 c_delbefore1(EditLine *);
+protected void	 c_delafter(EditLine *, int);
+protected void	 c_delafter1(EditLine *);
+protected int	 c_gets(EditLine *, Char *, const Char *);
+protected int	 c_hpos(EditLine *);
+
+protected int	 ch_init(EditLine *);
+protected void	 ch_reset(EditLine *, int);
+protected int	 ch_resizefun(EditLine *, el_zfunc_t, void *);
+protected int	 ch_enlargebufs(EditLine *, size_t);
+protected void	 ch_end(EditLine *);
+
+#endif /* _h_el_chared */

src/chartype.c

@@ -0,0 +1,359 @@
+/*	$NetBSD: chartype.c,v 1.10 2011/08/16 16:25:15 christos Exp $	*/
+
+/*-
+ * Copyright (c) 2009 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *        This product includes software developed by the NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * chartype.c: character classification and meta information
+ */
+#include "config.h"
+#if !defined(lint) && !defined(SCCSID)
+__RCSID("$NetBSD: chartype.c,v 1.10 2011/08/16 16:25:15 christos Exp $");
+#endif /* not lint && not SCCSID */
+#include "el.h"
+#include <stdlib.h>
+
+#define CT_BUFSIZ ((size_t)1024)
+
+#ifdef WIDECHAR
+protected void
+ct_conv_buff_resize(ct_buffer_t *conv, size_t mincsize, size_t minwsize)
+{
+	void *p;
+	if (mincsize > conv->csize) {
+		conv->csize = mincsize;
+		p = el_realloc(conv->cbuff, conv->csize * sizeof(*conv->cbuff));
+		if (p == NULL) {
+			conv->csize = 0;
+			el_free(conv->cbuff);
+			conv->cbuff = NULL;
+		} else 
+			conv->cbuff = p;
+	}
+
+	if (minwsize > conv->wsize) {
+		conv->wsize = minwsize;
+		p = el_realloc(conv->wbuff, conv->wsize * sizeof(*conv->wbuff));
+		if (p == NULL) {
+			conv->wsize = 0;
+			el_free(conv->wbuff);
+			conv->wbuff = NULL;
+		} else
+			conv->wbuff = p;
+	}
+}
+
+
+public char *
+ct_encode_string(const Char *s, ct_buffer_t *conv)
+{
+	char *dst;
+	ssize_t used = 0;
+
+	if (!s)
+		return NULL;
+	if (!conv->cbuff)
+		ct_conv_buff_resize(conv, CT_BUFSIZ, (size_t)0);
+	if (!conv->cbuff)
+		return NULL;
+
+	dst = conv->cbuff;
+	while (*s) {
+		used = (ssize_t)(conv->csize - (size_t)(dst - conv->cbuff));
+		if (used < 5) {
+			used = dst - conv->cbuff;
+			ct_conv_buff_resize(conv, conv->csize + CT_BUFSIZ,
+			    (size_t)0);
+			if (!conv->cbuff)
+				return NULL;
+			dst = conv->cbuff + used;
+		}
+		used = ct_encode_char(dst, (size_t)5, *s);
+		if (used == -1) /* failed to encode, need more buffer space */
+			abort();
+		++s;
+		dst += used;
+	}
+	*dst = '\0';
+	return conv->cbuff;
+}
+
+public Char *
+ct_decode_string(const char *s, ct_buffer_t *conv)
+{
+	size_t len = 0;
+
+	if (!s)
+		return NULL;
+	if (!conv->wbuff)
+		ct_conv_buff_resize(conv, (size_t)0, CT_BUFSIZ);
+	if (!conv->wbuff)
+		return NULL;
+
+	len = ct_mbstowcs(NULL, s, (size_t)0);
+	if (len == (size_t)-1)
+		return NULL;
+	if (len > conv->wsize)
+		ct_conv_buff_resize(conv, (size_t)0, len + 1);
+	if (!conv->wbuff)
+		return NULL;
+	ct_mbstowcs(conv->wbuff, s, conv->wsize);
+	return conv->wbuff;
+}
+
+
+protected Char **
+ct_decode_argv(int argc, const char *argv[], ct_buffer_t *conv)
+{
+	size_t bufspace;
+	int i;
+	Char *p;
+	Char **wargv;
+	ssize_t bytes;
+
+	/* Make sure we have enough space in the conversion buffer to store all
+	 * the argv strings. */
+	for (i = 0, bufspace = 0; i < argc; ++i)
+		bufspace += argv[i] ? strlen(argv[i]) + 1 : 0;
+	ct_conv_buff_resize(conv, (size_t)0, bufspace);
+	if (!conv->wsize)
+		return NULL;
+
+	// radar:20968385 map_bind reads beyond the array
+	wargv = el_malloc((size_t)(argc + 1) * sizeof(*wargv));
+	wargv[argc] = NULL;
+
+	for (i = 0, p = conv->wbuff; i < argc; ++i) {
+		if (!argv[i]) {   /* don't pass null pointers to mbstowcs */
+			wargv[i] = NULL;
+			continue;
+		} else {
+			wargv[i] = p;
+			bytes = (ssize_t)mbstowcs(p, argv[i], bufspace);
+		}
+		if (bytes == -1) {
+			el_free(wargv);
+			return NULL;
+		} else
+			bytes++;  /* include '\0' in the count */
+		bufspace -= (size_t)bytes;
+		p += bytes;
+	}
+
+	return wargv;
+}
+
+
+protected size_t
+ct_enc_width(Char c)
+{
+	/* UTF-8 encoding specific values */
+	if (c < 0x80)
+		return 1;
+	else if (c < 0x0800)
+		return 2;
+	else if (c < 0x10000)
+		return 3;
+	else if (c < 0x110000)
+		return 4;
+	else
+		return 0; /* not a valid codepoint */
+}
+
+protected ssize_t
+ct_encode_char(char *dst, size_t len, Char c)
+{
+	ssize_t l = 0;
+	if (len < ct_enc_width(c))
+		return -1;
+	l = ct_wctomb(dst, c);
+
+	if (l < 0) {
+		ct_wctomb_reset;
+		l = 0;
+	}
+	return l;
+}
+#endif
+
+protected const Char *
+ct_visual_string(const Char *s)
+{
+	static Char *buff = NULL;
+	static size_t buffsize = 0;
+	void *p;
+	Char *dst;
+	ssize_t used = 0;
+
+	if (!s)
+		return NULL;
+	if (!buff) {
+	    buffsize = CT_BUFSIZ;
+	    buff = el_malloc(buffsize * sizeof(*buff));
+	}
+	dst = buff;
+	while (*s) {
+		used = ct_visual_char(dst, buffsize - (size_t)(dst - buff), *s);
+		if (used == -1) { /* failed to encode, need more buffer space */
+			used = dst - buff;
+			buffsize += CT_BUFSIZ;
+			p = el_realloc(buff, buffsize * sizeof(*buff));
+			if (p == NULL)
+				goto out;
+			buff = p;
+			dst = buff + used;
+			/* don't increment s here - we want to retry it! */
+			continue;
+		}
+		else
+		    ++s;
+		dst += used;
+	}
+	if (dst >= (buff + buffsize)) { /* sigh */
+		buffsize += 1;
+		p = el_realloc(buff, buffsize * sizeof(*buff));
+		if (p == NULL)
+			goto out;
+		buff = p;
+		dst = buff + buffsize - 1;
+	}
+	*dst = 0;
+	return buff;
+out:
+	el_free(buff);
+	buffsize = 0;
+	return NULL;
+}
+
+
+
+protected int
+ct_visual_width(Char c)
+{
+	int t = ct_chr_class(c);
+	switch (t) {
+	case CHTYPE_ASCIICTL:
+		return 2; /* ^@ ^? etc. */
+	case CHTYPE_TAB:
+		return 1; /* Hmm, this really need to be handled outside! */
+	case CHTYPE_NL:
+		return 0; /* Should this be 1 instead? */
+#ifdef WIDECHAR
+	case CHTYPE_PRINT:
+		return wcwidth(c);
+	case CHTYPE_NONPRINT:
+		if (c > 0xffff) /* prefer standard 4-byte display over 5-byte */
+			return 8; /* \U+12345 */
+		else
+			return 7; /* \U+1234 */
+#else
+	case CHTYPE_PRINT:
+		return 1;
+	case CHTYPE_NONPRINT:
+		return 4; /* \123 */
+#endif
+	default:
+		return 0; /* should not happen */
+	}
+}
+
+
+protected ssize_t
+ct_visual_char(Char *dst, size_t len, Char c)
+{
+	int t = ct_chr_class(c);
+	switch (t) {
+	case CHTYPE_TAB:
+	case CHTYPE_NL:
+	case CHTYPE_ASCIICTL:
+		if (len < 2)
+			return -1;   /* insufficient space */
+		*dst++ = '^';
+		if (c == '\177')
+			*dst = '?'; /* DEL -> ^? */
+		else
+			*dst = c | 0100;    /* uncontrolify it */
+		return 2;
+	case CHTYPE_PRINT:
+		if (len < 1)
+			return -1;  /* insufficient space */
+		*dst = c;
+		return 1;
+	case CHTYPE_NONPRINT:
+		/* we only use single-width glyphs for display,
+		 * so this is right */
+		if ((ssize_t)len < ct_visual_width(c))
+			return -1;   /* insufficient space */
+#ifdef WIDECHAR
+		*dst++ = '\\';
+		*dst++ = 'U';
+		*dst++ = '+';
+#define tohexdigit(v) "0123456789ABCDEF"[v]
+		if (c > 0xffff) /* prefer standard 4-byte display over 5-byte */
+			*dst++ = tohexdigit(((unsigned int) c >> 16) & 0xf);
+		*dst++ = tohexdigit(((unsigned int) c >> 12) & 0xf);
+		*dst++ = tohexdigit(((unsigned int) c >>  8) & 0xf);
+		*dst++ = tohexdigit(((unsigned int) c >>  4) & 0xf);
+		*dst   = tohexdigit(((unsigned int) c      ) & 0xf);
+		return c > 0xffff ? 8 : 7;
+#else
+		*dst++ = '\\';
+#define tooctaldigit(v) ((v) + '0')
+		*dst++ = tooctaldigit(((unsigned int) c >> 6) & 0x7);
+		*dst++ = tooctaldigit(((unsigned int) c >> 3) & 0x7);
+		*dst++ = tooctaldigit(((unsigned int) c     ) & 0x7);
+#endif
+		/*FALLTHROUGH*/
+	/* these two should be handled outside this function */
+	default:            /* we should never hit the default */
+		return 0;
+	}
+}
+
+
+
+
+protected int
+ct_chr_class(Char c)
+{
+	if (c == '\t')
+		return CHTYPE_TAB;
+	else if (c == '\n')
+		return CHTYPE_NL;
+	else if (IsASCII(c) && Iscntrl(c))
+		return CHTYPE_ASCIICTL;
+	else if (Isprint(c))
+		return CHTYPE_PRINT;
+	else
+		return CHTYPE_NONPRINT;
+}

src/chartype.h

@@ -0,0 +1,254 @@
+/*	$NetBSD: chartype.h,v 1.10 2011/11/16 01:45:10 christos Exp $	*/
+
+/*-
+ * Copyright (c) 2009 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *        This product includes software developed by the NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _h_chartype_f
+#define _h_chartype_f
+
+
+
+#ifdef WIDECHAR
+
+/* Ideally we should also test the value of the define to see if it
+ * supports non-BMP code points without requiring UTF-16, but nothing
+ * seems to actually advertise this properly, despite Unicode 3.1 having
+ * been around since 2001... */
+#if !defined(__NetBSD__) && !defined(__sun) && !(defined(__APPLE__) && defined(__MACH__))
+#ifndef __STDC_ISO_10646__
+/* In many places it is assumed that the first 127 code points are ASCII
+ * compatible, so ensure wchar_t indeed does ISO 10646 and not some other
+ * funky encoding that could break us in weird and wonderful ways. */
+	#error wchar_t must store ISO 10646 characters
+#endif
+#endif
+
+/* Oh for a <uchar.h> with char32_t and __STDC_UTF_32__ in it...
+ * ref: ISO/IEC DTR 19769
+ */
+#if WCHAR_MAX < INT32_MAX
+#warning Build environment does not support non-BMP characters
+#endif
+
+#ifndef HAVE_WCSDUP
+wchar_t *wcsdup(const wchar_t *s);
+#endif
+
+#define ct_mbtowc            mbtowc
+#define ct_mbtowc_reset      mbtowc(0,0,(size_t)0)
+#define ct_wctomb            wctomb
+#define ct_wctomb_reset      wctomb(0,0)
+#define ct_wcstombs          wcstombs
+#define ct_mbstowcs          mbstowcs
+
+#define Char			wchar_t
+#define Int			wint_t
+#define FUN(prefix,rest)	prefix ## _w ## rest
+#define FUNW(type)		type ## _w
+#define TYPE(type)		type ## W
+#define FSTR			"%ls"
+#define STR(x) 			L ## x
+#define UC(c)			c
+#define Isalpha(x)  iswalpha(x)
+#define Isalnum(x)  iswalnum(x)
+#define Isgraph(x)  iswgraph(x)
+#define Isspace(x)  iswspace(x)
+#define Isdigit(x)  iswdigit(x)
+#define Iscntrl(x)  iswcntrl(x)
+#define Isprint(x)  iswprint(x)
+
+#define Isupper(x)  iswupper(x)
+#define Islower(x)  iswlower(x)
+#define Toupper(x)  towupper(x)
+#define Tolower(x)  towlower(x)
+
+#define IsASCII(x)  (x < 0x100)
+
+#define Strlen(x)       wcslen(x)
+#define Strchr(s,c)     wcschr(s,c)
+#define Strrchr(s,c)    wcsrchr(s,c)
+#define Strstr(s,v)     wcsstr(s,v)
+#define Strdup(x)       wcsdup(x)
+#define Strcpy(d,s)     wcscpy(d,s)
+#define Strncpy(d,s,n)  wcsncpy(d,s,n)
+#define Strncat(d,s,n)  wcsncat(d,s,n)
+
+#define Strcmp(s,v)     wcscmp(s,v)
+#define Strncmp(s,v,n)  wcsncmp(s,v,n)
+#define Strcspn(s,r)    wcscspn(s,r)
+
+#define Strtol(p,e,b)   wcstol(p,e,b)
+
+static inline int
+Width(wchar_t c)
+{
+	int w = wcwidth(c);
+	return w > 0 ? w : 1;
+}
+
+#else /* NARROW */
+
+#define ct_mbtowc            error
+#define ct_mbtowc_reset      
+#define ct_wctomb            error
+#define ct_wctomb_reset      
+#define ct_wcstombs(a, b, c)    (strncpy(a, b, c), strlen(a))
+#define ct_mbstowcs(a, b, c)    (strncpy(a, b, c), strlen(a))
+
+#define Char			char
+#define Int			int
+#define FUN(prefix,rest)	prefix ## _ ## rest
+#define FUNW(type)		type
+#define TYPE(type)		type
+#define FSTR			"%s"
+#define STR(x) 			x
+#define UC(c)			(unsigned char)(c)
+
+#define Isalpha(x)  isalpha((unsigned char)x)
+#define Isalnum(x)  isalnum((unsigned char)x)
+#define Isgraph(x)  isgraph((unsigned char)x)
+#define Isspace(x)  isspace((unsigned char)x)
+#define Isdigit(x)  isdigit((unsigned char)x)
+#define Iscntrl(x)  iscntrl((unsigned char)x)
+#define Isprint(x)  isprint((unsigned char)x)
+
+#define Isupper(x)  isupper((unsigned char)x)
+#define Islower(x)  islower((unsigned char)x)
+#define Toupper(x)  toupper((unsigned char)x)
+#define Tolower(x)  tolower((unsigned char)x)
+
+#define IsASCII(x)  isascii((unsigned char)x)
+
+#define Strlen(x)       strlen(x)
+#define Strchr(s,c)     strchr(s,c)
+#define Strrchr(s,c)    strrchr(s,c)
+#define Strstr(s,v)     strstr(s,v)
+#define Strdup(x)       strdup(x)
+#define Strcpy(d,s)     strcpy(d,s)
+#define Strncpy(d,s,n)  strncpy(d,s,n)
+#define Strncat(d,s,n)  strncat(d,s,n)
+
+#define Strcmp(s,v)     strcmp(s,v)
+#define Strncmp(s,v,n)  strncmp(s,v,n)
+#define Strcspn(s,r)    strcspn(s,r)
+
+#define Strtol(p,e,b)   strtol(p,e,b)
+
+#define Width(c)	1
+
+#endif
+
+
+#ifdef WIDECHAR
+/*
+ * Conversion buffer
+ */
+typedef struct ct_buffer_t {
+        char    *cbuff;
+        size_t  csize;
+        Char *wbuff;
+        size_t  wsize;
+} ct_buffer_t;
+
+#define ct_encode_string __ct_encode_string
+/* Encode a wide-character string and return the UTF-8 encoded result. */
+public char *ct_encode_string(const Char *, ct_buffer_t *);
+
+#define ct_decode_string __ct_decode_string
+/* Decode a (multi)?byte string and return the wide-character string result. */
+public Char *ct_decode_string(const char *, ct_buffer_t *);
+
+/* Decode a (multi)?byte argv string array.
+ * The pointer returned must be free()d when done. */
+protected Char **ct_decode_argv(int, const char *[],  ct_buffer_t *);
+
+/* Resizes the conversion buffer(s) if needed. */
+protected void ct_conv_buff_resize(ct_buffer_t *, size_t, size_t);
+protected ssize_t ct_encode_char(char *, size_t, Char);
+protected size_t ct_enc_width(Char);
+
+#define ct_free_argv(s)	el_free(s)
+
+#else
+#define	ct_encode_string(s, b)	(s)
+#define ct_decode_string(s, b)	(s)
+#define ct_decode_argv(l, s, b)	(s)
+#define ct_conv_buff_resize(b, os, ns)
+#define ct_encode_char(d, l, s)	(*d = s, 1)
+#define ct_free_argv(s)
+#endif
+
+#ifndef NARROWCHAR
+/* Encode a characted into the destination buffer, provided there is sufficent
+ * buffer space available. Returns the number of bytes used up (zero if the
+ * character cannot be encoded, -1 if there was not enough space available). */
+
+/* The maximum buffer size to hold the most unwieldly visual representation,
+ * in this case \U+nnnnn. */
+#define VISUAL_WIDTH_MAX ((size_t)8)
+
+/* The terminal is thought of in terms of X columns by Y lines. In the cases
+ * where a wide character takes up more than one column, the adjacent 
+ * occupied column entries will contain this faux character. */
+#define MB_FILL_CHAR ((Char)-1)
+
+/* Visual width of character c, taking into account ^? , \0177 and \U+nnnnn
+ * style visual expansions. */
+protected int ct_visual_width(Char);
+
+/* Turn the given character into the appropriate visual format, matching
+ * the width given by ct_visual_width(). Returns the number of characters used
+ * up, or -1 if insufficient space. Buffer length is in count of Char's. */
+protected ssize_t ct_visual_char(Char *, size_t, Char);
+
+/* Convert the given string into visual format, using the ct_visual_char()
+ * function. Uses a static buffer, so not threadsafe. */
+protected const Char *ct_visual_string(const Char *);
+
+
+/* printable character, use ct_visual_width() to find out display width */
+#define CHTYPE_PRINT        ( 0)
+/* control character found inside the ASCII portion of the charset */
+#define CHTYPE_ASCIICTL     (-1)
+/* a \t */
+#define CHTYPE_TAB          (-2)
+/* a \n */
+#define CHTYPE_NL           (-3)
+/* non-printable character */
+#define CHTYPE_NONPRINT     (-4)
+/* classification of character c, as one of the above defines */
+protected int ct_chr_class(Char c);
+#endif
+
+
+#endif /* _chartype_f */

src/common.c

@@ -0,0 +1,919 @@
+/*	$NetBSD: common.c,v 1.29 2012/03/24 20:08:43 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#if !defined(lint) && !defined(SCCSID)
+#if 0
+static char sccsid[] = "@(#)common.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: common.c,v 1.29 2012/03/24 20:08:43 christos Exp $");
+#endif
+#endif /* not lint && not SCCSID */
+
+/*
+ * common.c: Common Editor functions
+ */
+#include "el.h"
+
+/* ed_end_of_file():
+ *	Indicate end of file
+ *	[^D]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_end_of_file(EditLine *el, Int c __attribute__((__unused__)))
+{
+
+	re_goto_bottom(el);
+	*el->el_line.lastchar = '\0';
+	return CC_EOF;
+}
+
+
+/* ed_insert():
+ *	Add character to the line
+ *	Insert a character [bound to all insert keys]
+ */
+protected el_action_t
+ed_insert(EditLine *el, Int c)
+{
+	int count = el->el_state.argument;
+
+	if (c == '\0')
+		return CC_ERROR;
+
+	if (el->el_line.lastchar + el->el_state.argument >=
+	    el->el_line.limit) {
+		/* end of buffer space, try to allocate more */
+		if (!ch_enlargebufs(el, (size_t) count))
+			return CC_ERROR;	/* error allocating more */
+	}
+
+	if (count == 1) {
+		if (el->el_state.inputmode == MODE_INSERT
+		    || el->el_line.cursor >= el->el_line.lastchar)
+			c_insert(el, 1);
+
+		*el->el_line.cursor++ = c;
+		re_fastaddc(el);		/* fast refresh for one char. */
+	} else {
+		if (el->el_state.inputmode != MODE_REPLACE_1)
+			c_insert(el, el->el_state.argument);
+
+		while (count-- && el->el_line.cursor < el->el_line.lastchar)
+			*el->el_line.cursor++ = c;
+		re_refresh(el);
+	}
+
+	if (el->el_state.inputmode == MODE_REPLACE_1)
+		return vi_command_mode(el, 0);
+
+	return CC_NORM;
+}
+
+
+/* ed_delete_prev_word():
+ *	Delete from beginning of current word to cursor
+ *	[M-^?] [^W]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_delete_prev_word(EditLine *el, Int c __attribute__((__unused__)))
+{
+	Char *cp, *p, *kp;
+
+	if (el->el_line.cursor == el->el_line.buffer)
+		return CC_ERROR;
+
+	cp = c__prev_word(el->el_line.cursor, el->el_line.buffer,
+	    el->el_state.argument, ce__isword);
+
+	for (p = cp, kp = el->el_chared.c_kill.buf; p < el->el_line.cursor; p++)
+		*kp++ = *p;
+	el->el_chared.c_kill.last = kp;
+
+	c_delbefore(el, (int)(el->el_line.cursor - cp));/* delete before dot */
+	el->el_line.cursor = cp;
+	if (el->el_line.cursor < el->el_line.buffer)
+		el->el_line.cursor = el->el_line.buffer; /* bounds check */
+	return CC_REFRESH;
+}
+
+
+/* ed_delete_next_char():
+ *	Delete character under cursor
+ *	[^D] [x]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_delete_next_char(EditLine *el, Int c __attribute__((__unused__)))
+{
+#ifdef DEBUG_EDIT
+#define	EL	el->el_line
+	(void) fprintf(el->el_errlfile,
+	    "\nD(b: %x(%s)  c: %x(%s) last: %x(%s) limit: %x(%s)\n",
+	    EL.buffer, EL.buffer, EL.cursor, EL.cursor, EL.lastchar,
+	    EL.lastchar, EL.limit, EL.limit);
+#endif
+	if (el->el_line.cursor == el->el_line.lastchar) {
+			/* if I'm at the end */
+		if (el->el_map.type == MAP_VI) {
+			if (el->el_line.cursor == el->el_line.buffer) {
+				/* if I'm also at the beginning */
+#ifdef KSHVI
+				return CC_ERROR;
+#else
+				/* then do an EOF */
+				terminal_writec(el, c);
+				return CC_EOF;
+#endif
+			} else {
+#ifdef KSHVI
+				el->el_line.cursor--;
+#else
+				return CC_ERROR;
+#endif
+			}
+		} else
+				return CC_ERROR;
+	}
+	c_delafter(el, el->el_state.argument);	/* delete after dot */
+	if (el->el_map.type == MAP_VI &&
+	    el->el_line.cursor >= el->el_line.lastchar &&
+	    el->el_line.cursor > el->el_line.buffer)
+			/* bounds check */
+		el->el_line.cursor = el->el_line.lastchar - 1;
+	return CC_REFRESH;
+}
+
+
+/* ed_kill_line():
+ *	Cut to the end of line
+ *	[^K] [^K]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_kill_line(EditLine *el, Int c __attribute__((__unused__)))
+{
+	Char *kp, *cp;
+
+	cp = el->el_line.cursor;
+	kp = el->el_chared.c_kill.buf;
+	while (cp < el->el_line.lastchar)
+		*kp++ = *cp++;	/* copy it */
+	el->el_chared.c_kill.last = kp;
+			/* zap! -- delete to end */
+	el->el_line.lastchar = el->el_line.cursor;
+	return CC_REFRESH;
+}
+
+
+/* ed_move_to_end():
+ *	Move cursor to the end of line
+ *	[^E] [^E]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_move_to_end(EditLine *el, Int c __attribute__((__unused__)))
+{
+
+	el->el_line.cursor = el->el_line.lastchar;
+	if (el->el_map.type == MAP_VI) {
+		if (el->el_chared.c_vcmd.action != NOP) {
+			cv_delfini(el);
+			return CC_REFRESH;
+		}
+#ifdef VI_MOVE
+		el->el_line.cursor--;
+#endif
+	}
+	return CC_CURSOR;
+}
+
+
+/* ed_move_to_beg():
+ *	Move cursor to the beginning of line
+ *	[^A] [^A]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_move_to_beg(EditLine *el, Int c __attribute__((__unused__)))
+{
+
+	el->el_line.cursor = el->el_line.buffer;
+
+	if (el->el_map.type == MAP_VI) {
+			/* We want FIRST non space character */
+		while (Isspace(*el->el_line.cursor))
+			el->el_line.cursor++;
+		if (el->el_chared.c_vcmd.action != NOP) {
+			cv_delfini(el);
+			return CC_REFRESH;
+		}
+	}
+	return CC_CURSOR;
+}
+
+
+/* ed_transpose_chars():
+ *	Exchange the character to the left of the cursor with the one under it
+ *	[^T] [^T]
+ */
+protected el_action_t
+ed_transpose_chars(EditLine *el, Int c)
+{
+
+	if (el->el_line.cursor < el->el_line.lastchar) {
+		if (el->el_line.lastchar <= &el->el_line.buffer[1])
+			return CC_ERROR;
+		else
+			el->el_line.cursor++;
+	}
+	if (el->el_line.cursor > &el->el_line.buffer[1]) {
+		/* must have at least two chars entered */
+		c = el->el_line.cursor[-2];
+		el->el_line.cursor[-2] = el->el_line.cursor[-1];
+		el->el_line.cursor[-1] = c;
+		return CC_REFRESH;
+	} else
+		return CC_ERROR;
+}
+
+
+/* ed_next_char():
+ *	Move to the right one character
+ *	[^F] [^F]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_next_char(EditLine *el, Int c __attribute__((__unused__)))
+{
+	Char *lim = el->el_line.lastchar;
+
+	if (el->el_line.cursor >= lim ||
+	    (el->el_line.cursor == lim - 1 &&
+	    el->el_map.type == MAP_VI &&
+	    el->el_chared.c_vcmd.action == NOP))
+		return CC_ERROR;
+
+	el->el_line.cursor += el->el_state.argument;
+	if (el->el_line.cursor > lim)
+		el->el_line.cursor = lim;
+
+	if (el->el_map.type == MAP_VI)
+		if (el->el_chared.c_vcmd.action != NOP) {
+			cv_delfini(el);
+			return CC_REFRESH;
+		}
+	return CC_CURSOR;
+}
+
+
+/* ed_prev_word():
+ *	Move to the beginning of the current word
+ *	[M-b] [b]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_prev_word(EditLine *el, Int c __attribute__((__unused__)))
+{
+
+	if (el->el_line.cursor == el->el_line.buffer)
+		return CC_ERROR;
+
+	el->el_line.cursor = c__prev_word(el->el_line.cursor,
+	    el->el_line.buffer,
+	    el->el_state.argument,
+	    ce__isword);
+
+	if (el->el_map.type == MAP_VI)
+		if (el->el_chared.c_vcmd.action != NOP) {
+			cv_delfini(el);
+			return CC_REFRESH;
+		}
+	return CC_CURSOR;
+}
+
+
+/* ed_prev_char():
+ *	Move to the left one character
+ *	[^B] [^B]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_prev_char(EditLine *el, Int c __attribute__((__unused__)))
+{
+
+	if (el->el_line.cursor > el->el_line.buffer) {
+		el->el_line.cursor -= el->el_state.argument;
+		if (el->el_line.cursor < el->el_line.buffer)
+			el->el_line.cursor = el->el_line.buffer;
+
+		if (el->el_map.type == MAP_VI)
+			if (el->el_chared.c_vcmd.action != NOP) {
+				cv_delfini(el);
+				return CC_REFRESH;
+			}
+		return CC_CURSOR;
+	} else
+		return CC_ERROR;
+}
+
+
+/* ed_quoted_insert():
+ *	Add the next character typed verbatim
+ *	[^V] [^V]
+ */
+protected el_action_t
+ed_quoted_insert(EditLine *el, Int c)
+{
+	int num;
+	Char tc;
+
+	tty_quotemode(el);
+	num = FUN(el,getc)(el, &tc);
+	c = tc;
+	tty_noquotemode(el);
+	if (num == 1)
+		return ed_insert(el, c);
+	else
+		return ed_end_of_file(el, 0);
+}
+
+
+/* ed_digit():
+ *	Adds to argument or enters a digit
+ */
+protected el_action_t
+ed_digit(EditLine *el, Int c)
+{
+
+	if (!Isdigit(c))
+		return CC_ERROR;
+
+	if (el->el_state.doingarg) {
+			/* if doing an arg, add this in... */
+		if (el->el_state.lastcmd == EM_UNIVERSAL_ARGUMENT)
+			el->el_state.argument = c - '0';
+		else {
+			if (el->el_state.argument > 1000000)
+				return CC_ERROR;
+			el->el_state.argument =
+			    (el->el_state.argument * 10) + (c - '0');
+		}
+		return CC_ARGHACK;
+	}
+
+	return ed_insert(el, c);
+}
+
+
+/* ed_argument_digit():
+ *	Digit that starts argument
+ *	For ESC-n
+ */
+protected el_action_t
+ed_argument_digit(EditLine *el, Int c)
+{
+
+	if (!Isdigit(c))
+		return CC_ERROR;
+
+	if (el->el_state.doingarg) {
+		if (el->el_state.argument > 1000000)
+			return CC_ERROR;
+		el->el_state.argument = (el->el_state.argument * 10) +
+		    (c - '0');
+	} else {		/* else starting an argument */
+		el->el_state.argument = c - '0';
+		el->el_state.doingarg = 1;
+	}
+	return CC_ARGHACK;
+}
+
+
+/* ed_unassigned():
+ *	Indicates unbound character
+ *	Bound to keys that are not assigned
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_unassigned(EditLine *el __attribute__((__unused__)),
+    Int c __attribute__((__unused__)))
+{
+
+	return CC_ERROR;
+}
+
+
+/**
+ ** TTY key handling.
+ **/
+
+/* ed_tty_sigint():
+ *	Tty interrupt character
+ *	[^C]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_tty_sigint(EditLine *el __attribute__((__unused__)), 
+	      Int c __attribute__((__unused__)))
+{
+
+	return CC_NORM;
+}
+
+
+/* ed_tty_dsusp():
+ *	Tty delayed suspend character
+ *	[^Y]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_tty_dsusp(EditLine *el __attribute__((__unused__)), 
+	     Int c __attribute__((__unused__)))
+{
+
+	return CC_NORM;
+}
+
+
+/* ed_tty_flush_output():
+ *	Tty flush output characters
+ *	[^O]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_tty_flush_output(EditLine *el __attribute__((__unused__)), 
+		    Int c __attribute__((__unused__)))
+{
+
+	return CC_NORM;
+}
+
+
+/* ed_tty_sigquit():
+ *	Tty quit character
+ *	[^\]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_tty_sigquit(EditLine *el __attribute__((__unused__)), 
+	       Int c __attribute__((__unused__)))
+{
+
+	return CC_NORM;
+}
+
+
+/* ed_tty_sigtstp():
+ *	Tty suspend character
+ *	[^Z]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_tty_sigtstp(EditLine *el __attribute__((__unused__)), 
+	       Int c __attribute__((__unused__)))
+{
+
+	return CC_NORM;
+}
+
+
+/* ed_tty_stop_output():
+ *	Tty disallow output characters
+ *	[^S]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_tty_stop_output(EditLine *el __attribute__((__unused__)), 
+		   Int c __attribute__((__unused__)))
+{
+
+	return CC_NORM;
+}
+
+
+/* ed_tty_start_output():
+ *	Tty allow output characters
+ *	[^Q]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_tty_start_output(EditLine *el __attribute__((__unused__)), 
+		    Int c __attribute__((__unused__)))
+{
+
+	return CC_NORM;
+}
+
+
+/* ed_newline():
+ *	Execute command
+ *	[^J]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_newline(EditLine *el, Int c __attribute__((__unused__)))
+{
+
+	re_goto_bottom(el);
+	*el->el_line.lastchar++ = '\n';
+	*el->el_line.lastchar = '\0';
+	return CC_NEWLINE;
+}
+
+
+/* ed_delete_prev_char():
+ *	Delete the character to the left of the cursor
+ *	[^?]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_delete_prev_char(EditLine *el, Int c __attribute__((__unused__)))
+{
+
+	if (el->el_line.cursor <= el->el_line.buffer)
+		return CC_ERROR;
+
+	c_delbefore(el, el->el_state.argument);
+	el->el_line.cursor -= el->el_state.argument;
+	if (el->el_line.cursor < el->el_line.buffer)
+		el->el_line.cursor = el->el_line.buffer;
+	return CC_REFRESH;
+}
+
+
+/* ed_clear_screen():
+ *	Clear screen leaving current line at the top
+ *	[^L]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_clear_screen(EditLine *el, Int c __attribute__((__unused__)))
+{
+
+	terminal_clear_screen(el);	/* clear the whole real screen */
+	re_clear_display(el);	/* reset everything */
+	return CC_REFRESH;
+}
+
+
+/* ed_redisplay():
+ *	Redisplay everything
+ *	^R
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_redisplay(EditLine *el __attribute__((__unused__)), 
+	     Int c __attribute__((__unused__)))
+{
+
+	return CC_REDISPLAY;
+}
+
+
+/* ed_start_over():
+ *	Erase current line and start from scratch
+ *	[^G]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_start_over(EditLine *el, Int c __attribute__((__unused__)))
+{
+
+	ch_reset(el, 0);
+	return CC_REFRESH;
+}
+
+
+/* ed_sequence_lead_in():
+ *	First character in a bound sequence
+ *	Placeholder for external keys
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_sequence_lead_in(EditLine *el __attribute__((__unused__)), 
+		    Int c __attribute__((__unused__)))
+{
+
+	return CC_NORM;
+}
+
+
+/* ed_prev_history():
+ *	Move to the previous history line
+ *	[^P] [k]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_prev_history(EditLine *el, Int c __attribute__((__unused__)))
+{
+	char beep = 0;
+	int sv_event = el->el_history.eventno;
+
+	el->el_chared.c_undo.len = -1;
+	*el->el_line.lastchar = '\0';		/* just in case */
+
+	if (el->el_history.eventno == 0) {	/* save the current buffer
+						 * away */
+		(void) Strncpy(el->el_history.buf, el->el_line.buffer,
+		    EL_BUFSIZ);
+		el->el_history.last = el->el_history.buf +
+		    (el->el_line.lastchar - el->el_line.buffer);
+	}
+	el->el_history.eventno += el->el_state.argument;
+
+	if (hist_get(el) == CC_ERROR) {
+		if (el->el_map.type == MAP_VI) {
+			el->el_history.eventno = sv_event;
+			
+		}
+		beep = 1;
+		/* el->el_history.eventno was fixed by first call */
+		(void) hist_get(el);
+	}
+	if (beep)
+		return CC_REFRESH_BEEP;
+	return CC_REFRESH;
+}
+
+
+/* ed_next_history():
+ *	Move to the next history line
+ *	[^N] [j]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_next_history(EditLine *el, Int c __attribute__((__unused__)))
+{
+	el_action_t beep = CC_REFRESH, rval;
+
+	el->el_chared.c_undo.len = -1;
+	*el->el_line.lastchar = '\0';	/* just in case */
+
+	el->el_history.eventno -= el->el_state.argument;
+
+	if (el->el_history.eventno < 0) {
+		el->el_history.eventno = 0;
+		beep = CC_REFRESH_BEEP;
+	}
+	rval = hist_get(el);
+	if (rval == CC_REFRESH)
+		return beep;
+	return rval;
+
+}
+
+
+/* ed_search_prev_history():
+ *	Search previous in history for a line matching the current
+ *	next search history [M-P] [K]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_search_prev_history(EditLine *el, Int c __attribute__((__unused__)))
+{
+	const Char *hp;
+	int h;
+	bool_t found = 0;
+
+	el->el_chared.c_vcmd.action = NOP;
+	el->el_chared.c_undo.len = -1;
+	*el->el_line.lastchar = '\0';	/* just in case */
+	if (el->el_history.eventno < 0) {
+#ifdef DEBUG_EDIT
+		(void) fprintf(el->el_errfile,
+		    "e_prev_search_hist(): eventno < 0;\n");
+#endif
+		el->el_history.eventno = 0;
+		return CC_ERROR;
+	}
+	if (el->el_history.eventno == 0) {
+		(void) Strncpy(el->el_history.buf, el->el_line.buffer,
+		    EL_BUFSIZ);
+		el->el_history.last = el->el_history.buf +
+		    (el->el_line.lastchar - el->el_line.buffer);
+	}
+	if (el->el_history.ref == NULL)
+		return CC_ERROR;
+
+	hp = HIST_FIRST(el);
+	if (hp == NULL)
+		return CC_ERROR;
+
+	c_setpat(el);		/* Set search pattern !! */
+
+	for (h = 1; h <= el->el_history.eventno; h++)
+		hp = HIST_NEXT(el);
+
+	while (hp != NULL) {
+#ifdef SDEBUG
+		(void) fprintf(el->el_errfile, "Comparing with \"%s\"\n", hp);
+#endif
+		if ((Strncmp(hp, el->el_line.buffer, (size_t)
+			    (el->el_line.lastchar - el->el_line.buffer)) ||
+			hp[el->el_line.lastchar - el->el_line.buffer]) &&
+		    c_hmatch(el, hp)) {
+			found++;
+			break;
+		}
+		h++;
+		hp = HIST_NEXT(el);
+	}
+
+	if (!found) {
+#ifdef SDEBUG
+		(void) fprintf(el->el_errfile, "not found\n");
+#endif
+		return CC_ERROR;
+	}
+	el->el_history.eventno = h;
+
+	return hist_get(el);
+}
+
+
+/* ed_search_next_history():
+ *	Search next in history for a line matching the current
+ *	[M-N] [J]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_search_next_history(EditLine *el, Int c __attribute__((__unused__)))
+{
+	const Char *hp;
+	int h;
+	bool_t found = 0;
+
+	el->el_chared.c_vcmd.action = NOP;
+	el->el_chared.c_undo.len = -1;
+	*el->el_line.lastchar = '\0';	/* just in case */
+
+	if (el->el_history.eventno == 0)
+		return CC_ERROR;
+
+	if (el->el_history.ref == NULL)
+		return CC_ERROR;
+
+	hp = HIST_FIRST(el);
+	if (hp == NULL)
+		return CC_ERROR;
+
+	c_setpat(el);		/* Set search pattern !! */
+
+	for (h = 1; h < el->el_history.eventno && hp; h++) {
+#ifdef SDEBUG
+		(void) fprintf(el->el_errfile, "Comparing with \"%s\"\n", hp);
+#endif
+		if ((Strncmp(hp, el->el_line.buffer, (size_t)
+			    (el->el_line.lastchar - el->el_line.buffer)) ||
+			hp[el->el_line.lastchar - el->el_line.buffer]) &&
+		    c_hmatch(el, hp))
+			found = h;
+		hp = HIST_NEXT(el);
+	}
+
+	if (!found) {		/* is it the current history number? */
+		if (!c_hmatch(el, el->el_history.buf)) {
+#ifdef SDEBUG
+			(void) fprintf(el->el_errfile, "not found\n");
+#endif
+			return CC_ERROR;
+		}
+	}
+	el->el_history.eventno = found;
+
+	return hist_get(el);
+}
+
+
+/* ed_prev_line():
+ *	Move up one line
+ *	Could be [k] [^p]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_prev_line(EditLine *el, Int c __attribute__((__unused__)))
+{
+	Char *ptr;
+	int nchars = c_hpos(el);
+
+	/*
+         * Move to the line requested
+         */
+	if (*(ptr = el->el_line.cursor) == '\n')
+		ptr--;
+
+	for (; ptr >= el->el_line.buffer; ptr--)
+		if (*ptr == '\n' && --el->el_state.argument <= 0)
+			break;
+
+	if (el->el_state.argument > 0)
+		return CC_ERROR;
+
+	/*
+         * Move to the beginning of the line
+         */
+	for (ptr--; ptr >= el->el_line.buffer && *ptr != '\n'; ptr--)
+		continue;
+
+	/*
+         * Move to the character requested
+         */
+	for (ptr++;
+	    nchars-- > 0 && ptr < el->el_line.lastchar && *ptr != '\n';
+	    ptr++)
+		continue;
+
+	el->el_line.cursor = ptr;
+	return CC_CURSOR;
+}
+
+
+/* ed_next_line():
+ *	Move down one line
+ *	Could be [j] [^n]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_next_line(EditLine *el, Int c __attribute__((__unused__)))
+{
+	Char *ptr;
+	int nchars = c_hpos(el);
+
+	/*
+         * Move to the line requested
+         */
+	for (ptr = el->el_line.cursor; ptr < el->el_line.lastchar; ptr++)
+		if (*ptr == '\n' && --el->el_state.argument <= 0)
+			break;
+
+	if (el->el_state.argument > 0)
+		return CC_ERROR;
+
+	/*
+         * Move to the character requested
+         */
+	for (ptr++;
+	    nchars-- > 0 && ptr < el->el_line.lastchar && *ptr != '\n';
+	    ptr++)
+		continue;
+
+	el->el_line.cursor = ptr;
+	return CC_CURSOR;
+}
+
+
+/* ed_command():
+ *	Editline extended command
+ *	[M-X] [:]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_command(EditLine *el, Int c __attribute__((__unused__)))
+{
+	Char tmpbuf[EL_BUFSIZ];
+	int tmplen;
+
+	tmplen = c_gets(el, tmpbuf, STR("\n: "));
+	terminal__putc(el, '\n');
+
+	if (tmplen < 0 || (tmpbuf[tmplen] = 0, parse_line(el, tmpbuf)) == -1)
+		terminal_beep(el);
+
+	el->el_map.current = el->el_map.key;
+	re_clear_display(el);
+	return CC_REFRESH;
+}

src/editline/readline.h

@@ -0,0 +1,222 @@
+/*	$NetBSD: readline.h,v 1.33 2012/05/15 17:30:04 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1997 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jaromir Dolecek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _READLINE_H_
+#define _READLINE_H_
+
+#include <sys/types.h>
+#include <stdio.h>
+
+/* list of readline stuff supported by editline library's readline wrapper */
+
+/* typedefs */
+typedef int	  Function(const char *, int);
+typedef void	  VFunction(void);
+typedef void	  VCPFunction(char *);
+typedef char	 *CPFunction(const char *, int);
+typedef char	**CPPFunction(const char *, int, int);
+typedef char     *rl_compentry_func_t(const char *, int);
+typedef int	  rl_command_func_t(int, int);
+
+/* only supports length */
+typedef struct {
+	int length;
+} HISTORY_STATE;
+
+typedef void *histdata_t;
+
+typedef struct _hist_entry {
+	const char	*line;
+	histdata_t 	 data;
+} HIST_ENTRY;
+
+typedef struct _keymap_entry {
+	char type;
+#define ISFUNC	0
+#define ISKMAP	1
+#define ISMACR	2
+	Function *function;
+} KEYMAP_ENTRY;
+
+#define KEYMAP_SIZE	256
+
+typedef KEYMAP_ENTRY KEYMAP_ENTRY_ARRAY[KEYMAP_SIZE];
+typedef KEYMAP_ENTRY *Keymap;
+
+#define control_character_threshold	0x20
+#define control_character_bit		0x40
+
+#ifndef CTRL
+#include <sys/ioctl.h>
+#if !defined(__sun) && !defined(__hpux) && !defined(_AIX)
+#include <sys/ttydefaults.h>
+#endif
+#ifndef CTRL
+#define CTRL(c)		((c) & 037)
+#endif
+#endif
+#ifndef UNCTRL
+#define UNCTRL(c)	(((c) - 'a' + 'A')|control_character_bit)
+#endif
+
+#define RUBOUT		0x7f
+#define ABORT_CHAR	CTRL('G')
+#define RL_READLINE_VERSION 	0x0402
+#define RL_PROMPT_START_IGNORE	'\1'
+#define RL_PROMPT_END_IGNORE	'\2'
+
+/* global variables used by readline enabled applications */
+#ifdef __cplusplus
+extern "C" {
+#endif
+extern const char	*rl_library_version;
+extern int 		rl_readline_version; 
+extern char		*rl_readline_name;
+extern FILE		*rl_instream;
+extern FILE		*rl_outstream;
+extern char		*rl_line_buffer;
+extern int		 rl_point, rl_end;
+extern int		 history_base, history_length;
+extern int		 max_input_history;
+extern char		*rl_basic_word_break_characters;
+extern char		*rl_completer_word_break_characters;
+extern char		*rl_completer_quote_characters;
+extern Function		*rl_completion_entry_function;
+extern char		*(*rl_completion_word_break_hook)(void);
+extern CPPFunction	*rl_attempted_completion_function;
+extern int		 rl_attempted_completion_over;
+extern int		rl_completion_type;
+extern int		rl_completion_query_items;
+extern char		*rl_special_prefixes;
+extern int		rl_completion_append_character;
+extern int		rl_inhibit_completion;
+extern Function		*rl_pre_input_hook;
+extern Function		*rl_startup_hook;
+extern char		*rl_terminal_name;
+extern int		rl_already_prompted;
+extern char		*rl_prompt;
+/*
+ * The following is not implemented
+ */
+extern KEYMAP_ENTRY_ARRAY emacs_standard_keymap,
+			emacs_meta_keymap,
+			emacs_ctlx_keymap;
+extern int		rl_filename_completion_desired;
+extern int		rl_ignore_completion_duplicates;
+extern int		(*rl_getc_function)(FILE *);
+extern VFunction	*rl_redisplay_function;
+extern VFunction	*rl_completion_display_matches_hook;
+extern VFunction	*rl_prep_term_function;
+extern VFunction	*rl_deprep_term_function;
+extern int		readline_echoing_p;
+extern int		_rl_print_completions_horizontally;
+
+/* supported functions */
+char		*readline(const char *);
+int		 rl_initialize(void);
+
+void		 using_history(void);
+int		 add_history(const char *);
+void		 clear_history(void);
+void		 stifle_history(int);
+int		 unstifle_history(void);
+int		 history_is_stifled(void);
+int		 where_history(void);
+HIST_ENTRY	*current_history(void);
+HIST_ENTRY	*history_get(int);
+HIST_ENTRY	*remove_history(int);
+HIST_ENTRY	*replace_history_entry(int, const char *, histdata_t);
+int		 history_total_bytes(void);
+int		 history_set_pos(int);
+HIST_ENTRY	*previous_history(void);
+HIST_ENTRY	*next_history(void);
+int		 history_search(const char *, int);
+int		 history_search_prefix(const char *, int);
+int		 history_search_pos(const char *, int, int);
+int		 read_history(const char *);
+int		 write_history(const char *);
+int		 history_truncate_file (const char *, int);
+int		 history_expand(char *, char **);
+char	       **history_tokenize(const char *);
+const char	*get_history_event(const char *, int *, int);
+char		*history_arg_extract(int, int, const char *);
+
+char		*tilde_expand(char *);
+char		*filename_completion_function(const char *, int);
+char		*username_completion_function(const char *, int);
+int		 rl_complete(int, int);
+int		 rl_read_key(void);
+char	       **completion_matches(const char *, CPFunction *);
+void		 rl_display_match_list(char **, int, int);
+
+int		 rl_insert(int, int);
+int		 rl_insert_text(const char *);
+void		 rl_reset_terminal(const char *);
+int		 rl_bind_key(int, rl_command_func_t *);
+int		 rl_newline(int, int);
+void		 rl_callback_read_char(void);
+void		 rl_callback_handler_install(const char *, VCPFunction *);
+void		 rl_callback_handler_remove(void);
+void		 rl_redisplay(void);
+int		 rl_get_previous_history(int, int);
+void		 rl_prep_terminal(int);
+void		 rl_deprep_terminal(void);
+int		 rl_read_init_file(const char *);
+int		 rl_parse_and_bind(const char *);
+int		 rl_variable_bind(const char *, const char *);
+void		 rl_stuff_char(int);
+int		 rl_add_defun(const char *, Function *, int);
+HISTORY_STATE	*history_get_history_state(void);
+void		 rl_get_screen_size(int *, int *);
+void		 rl_set_screen_size(int, int);
+char 		*rl_filename_completion_function (const char *, int);
+int		 _rl_abort_internal(void);
+int		 _rl_qsort_string_compare(char **, char **);
+char 	       **rl_completion_matches(const char *, rl_compentry_func_t *);
+void		 rl_forced_update_display(void);
+int		 rl_set_prompt(const char *);
+int		 rl_on_new_line(void);
+
+/*
+ * The following are not implemented
+ */
+int		 rl_kill_text(int, int);
+Keymap		 rl_get_keymap(void);
+void		 rl_set_keymap(Keymap);
+Keymap		 rl_make_bare_keymap(void);
+int		 rl_generic_bind(int, const char *, const char *, Keymap);
+int		 rl_bind_key_in_map(int, rl_command_func_t *, Keymap);
+void		 rl_cleanup_after_signal(void);
+void		 rl_free_line_state(void);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _READLINE_H_ */

src/el.c

@@ -0,0 +1,623 @@
+/*	$NetBSD: el.c,v 1.71 2012/09/11 11:58:53 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#if !defined(lint) && !defined(SCCSID)
+#if 0
+static char sccsid[] = "@(#)el.c	8.2 (Berkeley) 1/3/94";
+#else
+__RCSID("$NetBSD: el.c,v 1.71 2012/09/11 11:58:53 christos Exp $");
+#endif
+#endif /* not lint && not SCCSID */
+
+#ifndef MAXPATHLEN
+#define MAXPATHLEN 4096
+#endif
+
+/*
+ * el.c: EditLine interface functions
+ */
+#include <sys/types.h>
+#include <sys/param.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <ctype.h>
+#include <locale.h>
+#include <langinfo.h>
+#include "el.h"
+
+/* el_init():
+ *	Initialize editline and set default parameters.
+ */
+public EditLine *
+el_init(const char *prog, FILE *fin, FILE *fout, FILE *ferr)
+{
+	EditLine *el = el_malloc(sizeof(*el));
+
+	if (el == NULL)
+		return NULL;
+
+	memset(el, 0, sizeof(EditLine));
+
+	el->el_infile = fin;
+	el->el_outfile = fout;
+	el->el_errfile = ferr;
+
+	el->el_infd = fileno(fin);
+	el->el_outfd = fileno(fout);
+	el->el_errfd = fileno(ferr);
+
+	el->el_prog = Strdup(ct_decode_string(prog, &el->el_scratch));
+	if (el->el_prog == NULL) {
+		el_free(el);
+		return NULL;
+	}
+
+	/*
+         * Initialize all the modules. Order is important!!!
+         */
+	el->el_flags = 0;
+#ifdef WIDECHAR
+	char *loc = setlocale(LC_CTYPE, NULL);
+	if (loc != NULL && strcmp(loc, "C") == 0)
+		loc = setlocale(LC_CTYPE, "");
+	if (loc != NULL) {
+		if (strcmp(nl_langinfo(CODESET), "UTF-8") == 0)
+			el->el_flags |= CHARSET_IS_UTF8;
+	}
+#endif
+
+	if (terminal_init(el) == -1) {
+		el_free(el->el_prog);
+		el_free(el);
+		return NULL;
+	}
+	(void) keymacro_init(el);
+	(void) map_init(el);
+	if (tty_init(el) == -1)
+		el->el_flags |= NO_TTY;
+	(void) ch_init(el);
+	(void) search_init(el);
+	(void) hist_init(el);
+	(void) prompt_init(el);
+	(void) sig_init(el);
+	(void) read_init(el);
+
+	return el;
+}
+
+
+/* el_end():
+ *	Clean up.
+ */
+public void
+el_end(EditLine *el)
+{
+
+	if (el == NULL)
+		return;
+
+	el_reset(el);
+
+	terminal_end(el);
+	keymacro_end(el);
+	map_end(el);
+	tty_end(el);
+	ch_end(el);
+	search_end(el);
+	hist_end(el);
+	prompt_end(el);
+	sig_end(el);
+
+	el_free(el->el_prog);
+#ifdef WIDECHAR
+	el_free(el->el_scratch.cbuff);
+	el_free(el->el_scratch.wbuff);
+	el_free(el->el_lgcyconv.cbuff);
+	el_free(el->el_lgcyconv.wbuff);
+#endif
+	el_free(el);
+}
+
+
+/* el_reset():
+ *	Reset the tty and the parser
+ */
+public void
+el_reset(EditLine *el)
+{
+
+	tty_cookedmode(el);
+	ch_reset(el, 0);		/* XXX: Do we want that? */
+}
+
+
+/* el_set():
+ *	set the editline parameters
+ */
+public int
+FUN(el,set)(EditLine *el, int op, ...)
+{
+	va_list ap;
+	int rv = 0;
+
+	if (el == NULL)
+		return -1;
+	va_start(ap, op);
+
+	switch (op) {
+	case EL_PROMPT:
+	case EL_RPROMPT: {
+		el_pfunc_t p = va_arg(ap, el_pfunc_t);
+
+		rv = prompt_set(el, p, 0, op, 1);
+		break;
+	}
+
+	case EL_RESIZE: {
+		el_zfunc_t p = va_arg(ap, el_zfunc_t);
+		void *arg = va_arg(ap, void *);
+		rv = ch_resizefun(el, p, arg);
+		break;
+	}
+
+	case EL_PROMPT_ESC:
+	case EL_RPROMPT_ESC: {
+		el_pfunc_t p = va_arg(ap, el_pfunc_t);
+		int c = va_arg(ap, int);
+
+		rv = prompt_set(el, p, c, op, 1);
+		break;
+	}
+
+	case EL_TERMINAL:
+		rv = terminal_set(el, va_arg(ap, char *));
+		break;
+
+	case EL_EDITOR:
+		rv = map_set_editor(el, va_arg(ap, Char *));
+		break;
+
+	case EL_SIGNAL:
+		if (va_arg(ap, int))
+			el->el_flags |= HANDLE_SIGNALS;
+		else
+			el->el_flags &= ~HANDLE_SIGNALS;
+		break;
+
+	case EL_BIND:
+	case EL_TELLTC:
+	case EL_SETTC:
+	case EL_ECHOTC:
+	case EL_SETTY:
+	{
+		const Char *argv[20];
+		int i;
+
+		for (i = 1; i < (int)__arraycount(argv); i++)
+			if ((argv[i] = va_arg(ap, Char *)) == NULL)
+				break;
+
+		switch (op) {
+		case EL_BIND:
+			argv[0] = STR("bind");
+			rv = map_bind(el, i, argv);
+			break;
+
+		case EL_TELLTC:
+			argv[0] = STR("telltc");
+			rv = terminal_telltc(el, i, argv);
+			break;
+
+		case EL_SETTC:
+			argv[0] = STR("settc");
+			rv = terminal_settc(el, i, argv);
+			break;
+
+		case EL_ECHOTC:
+			argv[0] = STR("echotc");
+			rv = terminal_echotc(el, i, argv);
+			break;
+
+		case EL_SETTY:
+			argv[0] = STR("setty");
+			rv = tty_stty(el, i, argv);
+			break;
+
+		default:
+			rv = -1;
+			EL_ABORT((el->el_errfile, "Bad op %d\n", op));
+			break;
+		}
+		break;
+	}
+
+	case EL_ADDFN:
+	{
+		Char *name = va_arg(ap, Char *);
+		Char *help = va_arg(ap, Char *);
+		el_func_t func = va_arg(ap, el_func_t);
+
+		rv = map_addfunc(el, name, help, func);
+		break;
+	}
+
+	case EL_HIST:
+	{
+		hist_fun_t func = va_arg(ap, hist_fun_t);
+		void *ptr = va_arg(ap, void *);
+
+		rv = hist_set(el, func, ptr);
+		el->el_flags &= ~NARROW_HISTORY;
+		break;
+	}
+
+	case EL_EDITMODE:
+		if (va_arg(ap, int))
+			el->el_flags &= ~EDIT_DISABLED;
+		else
+			el->el_flags |= EDIT_DISABLED;
+		rv = 0;
+		break;
+
+	case EL_GETCFN:
+	{
+		el_rfunc_t rc = va_arg(ap, el_rfunc_t);
+		rv = el_read_setfn(el, rc);
+		el->el_flags &= ~NARROW_READ;
+		break;
+	}
+
+	case EL_CLIENTDATA:
+		el->el_data = va_arg(ap, void *);
+		break;
+
+	case EL_UNBUFFERED:
+		rv = va_arg(ap, int);
+		if (rv && !(el->el_flags & UNBUFFERED)) {
+			el->el_flags |= UNBUFFERED;
+			read_prepare(el);
+		} else if (!rv && (el->el_flags & UNBUFFERED)) {
+			el->el_flags &= ~UNBUFFERED;
+			read_finish(el);
+		}
+		rv = 0;
+		break;
+
+	case EL_PREP_TERM:
+		rv = va_arg(ap, int);
+		if (rv)
+			(void) tty_rawmode(el);
+		else
+			(void) tty_cookedmode(el);
+		rv = 0;
+		break;
+
+	case EL_SETFP:
+	{
+		FILE *fp;
+		int what;
+
+		what = va_arg(ap, int);
+		fp = va_arg(ap, FILE *);
+
+		rv = 0;
+		switch (what) {
+		case 0:
+			el->el_infile = fp;
+			el->el_infd = fileno(fp);
+			break;
+		case 1:
+			el->el_outfile = fp;
+			el->el_outfd = fileno(fp);
+			break;
+		case 2:
+			el->el_errfile = fp;
+			el->el_errfd = fileno(fp);
+			break;
+		default:
+			rv = -1;
+			break;
+		}
+		break;
+	}
+
+	case EL_REFRESH:
+		re_clear_display(el);
+		re_refresh(el);
+		terminal__flush(el);
+		break;
+
+	default:
+		rv = -1;
+		break;
+	}
+
+	va_end(ap);
+	return rv;
+}
+
+
+/* el_get():
+ *	retrieve the editline parameters
+ */
+public int
+FUN(el,get)(EditLine *el, int op, ...)
+{
+	va_list ap;
+	int rv;
+
+	if (el == NULL)
+		return -1;
+
+	va_start(ap, op);
+
+	switch (op) {
+	case EL_PROMPT:
+	case EL_RPROMPT: {
+		el_pfunc_t *p = va_arg(ap, el_pfunc_t *);
+		rv = prompt_get(el, p, 0, op);
+		break;
+	}
+	case EL_PROMPT_ESC:
+	case EL_RPROMPT_ESC: {
+		el_pfunc_t *p = va_arg(ap, el_pfunc_t *);
+		Char *c = va_arg(ap, Char *);
+
+		rv = prompt_get(el, p, c, op);
+		break;
+	}
+
+	case EL_EDITOR:
+		rv = map_get_editor(el, va_arg(ap, const Char **));
+		break;
+
+	case EL_SIGNAL:
+		*va_arg(ap, int *) = (el->el_flags & HANDLE_SIGNALS);
+		rv = 0;
+		break;
+
+	case EL_EDITMODE:
+		*va_arg(ap, int *) = !(el->el_flags & EDIT_DISABLED);
+		rv = 0;
+		break;
+
+	case EL_TERMINAL:
+		terminal_get(el, va_arg(ap, const char **));
+		rv = 0;
+		break;
+
+	case EL_GETTC:
+	{
+		static char name[] = "gettc";
+		char *argv[20];
+		int i;
+
+ 		for (i = 1; i < (int)__arraycount(argv); i++)
+			if ((argv[i] = va_arg(ap, char *)) == NULL)
+				break;
+
+		argv[0] = name;
+		rv = terminal_gettc(el, i, argv);
+		break;
+	}
+
+	case EL_GETCFN:
+		*va_arg(ap, el_rfunc_t *) = el_read_getfn(el);
+		rv = 0;
+		break;
+
+	case EL_CLIENTDATA:
+		*va_arg(ap, void **) = el->el_data;
+		rv = 0;
+		break;
+
+	case EL_UNBUFFERED:
+		*va_arg(ap, int *) = (el->el_flags & UNBUFFERED) != 0;
+		rv = 0;
+		break;
+
+	case EL_GETFP:
+	{
+		int what;
+		FILE **fpp;
+
+		what = va_arg(ap, int);
+		fpp = va_arg(ap, FILE **);
+		rv = 0;
+		switch (what) {
+		case 0:
+			*fpp = el->el_infile;
+			break;
+		case 1:
+			*fpp = el->el_outfile;
+			break;
+		case 2:
+			*fpp = el->el_errfile;
+			break;
+		default:
+			rv = -1;
+			break;
+		}
+		break;
+	}
+	default:
+		rv = -1;
+		break;
+	}
+	va_end(ap);
+
+	return rv;
+}
+
+
+/* el_line():
+ *	Return editing info
+ */
+public const TYPE(LineInfo) *
+FUN(el,line)(EditLine *el)
+{
+
+	return (const TYPE(LineInfo) *)(void *)&el->el_line;
+}
+
+
+/* el_source():
+ *	Source a file
+ */
+public int
+el_source(EditLine *el, const char *fname)
+{
+	FILE *fp;
+	size_t len;
+	char *ptr;
+	char *path = NULL;
+	const Char *dptr;
+	int error = 0;
+
+	fp = NULL;
+	if (fname == NULL) {
+		static const char elpath[] = "/.editrc";
+		size_t plen = sizeof(elpath);
+
+#ifdef HAVE_ISSETUGID
+		if (issetugid())
+			return -1;
+		if ((ptr = getenv("HOME")) == NULL)
+			return -1;
+		plen += strlen(ptr);
+		if ((path = el_malloc(plen * sizeof(*path))) == NULL)
+			return -1;
+		(void)snprintf(path, plen, "%s%s", ptr, elpath);
+		fname = path;
+#else
+		/*
+		 * If issetugid() is missing, always return an error, in order
+		 * to keep from inadvertently opening up the user to a security
+		 * hole.
+		 */
+		return -1;
+#endif
+	}
+	if (fp == NULL)
+		fp = fopen(fname, "r");
+	if (fp == NULL) {
+		el_free(path);
+		return -1;
+	}
+
+	while ((ptr = fgetln(fp, &len)) != NULL) {
+		if (*ptr == '\n')
+			continue;	/* Empty line. */
+		dptr = ct_decode_string(ptr, &el->el_scratch);
+		if (!dptr)
+			continue;
+		if (len > 0 && dptr[len - 1] == '\n')
+			--len;
+
+		/* loop until first non-space char or EOL */
+		while (*dptr != '\0' && Isspace(*dptr))
+			dptr++;
+		if (*dptr == '#')
+			continue;   /* ignore, this is a comment line */
+		if ((error = parse_line(el, dptr)) == -1)
+			break;
+	}
+
+	el_free(path);
+	(void) fclose(fp);
+	return error;
+}
+
+
+/* el_resize():
+ *	Called from program when terminal is resized
+ */
+public void
+el_resize(EditLine *el)
+{
+	int lins, cols;
+	sigset_t oset, nset;
+
+	(void) sigemptyset(&nset);
+	(void) sigaddset(&nset, SIGWINCH);
+	(void) sigprocmask(SIG_BLOCK, &nset, &oset);
+
+	/* get the correct window size */
+	if (terminal_get_size(el, &lins, &cols))
+		terminal_change_size(el, lins, cols);
+
+	(void) sigprocmask(SIG_SETMASK, &oset, NULL);
+}
+
+
+/* el_beep():
+ *	Called from the program to beep
+ */
+public void
+el_beep(EditLine *el)
+{
+
+	terminal_beep(el);
+}
+
+
+/* el_editmode()
+ *	Set the state of EDIT_DISABLED from the `edit' command.
+ */
+protected int
+/*ARGSUSED*/
+el_editmode(EditLine *el, int argc, const Char **argv)
+{
+	const Char *how;
+
+	if (argv == NULL || argc != 2 || argv[1] == NULL)
+		return -1;
+
+	how = argv[1];
+	if (Strcmp(how, STR("on")) == 0) {
+		el->el_flags &= ~EDIT_DISABLED;
+		tty_rawmode(el);
+	} else if (Strcmp(how, STR("off")) == 0) {
+		tty_cookedmode(el);
+		el->el_flags |= EDIT_DISABLED;
+	}
+	else {
+		(void) fprintf(el->el_errfile, "edit: Bad value `" FSTR "'.\n",
+		    how);
+		return -1;
+	}
+	return 0;
+}

src/el.h

@@ -0,0 +1,170 @@
+/*	$NetBSD: el.h,v 1.25 2011/07/29 23:44:44 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)el.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.h: Internal structures.
+ */
+#ifndef _h_el
+#define	_h_el
+/*
+ * Local defaults
+ */
+#define	KSHVI
+#define	VIDEFAULT
+#define	ANCHOR
+
+#include "histedit.h"
+#include "chartype.h"
+#include <stdio.h>
+#include <sys/types.h>
+
+#define	EL_BUFSIZ	((size_t)1024)	/* Maximum line size		*/
+
+#define	HANDLE_SIGNALS	0x01
+#define	NO_TTY		0x02
+#define	EDIT_DISABLED	0x04
+#define	UNBUFFERED	0x08
+#define	CHARSET_IS_UTF8 0x10
+#define	IGNORE_EXTCHARS 0x20            /* Ignore characters read > 0xff */
+#define	NARROW_HISTORY	0x40
+#define	NARROW_READ	0x80
+
+typedef int bool_t;			/* True or not			*/
+
+typedef unsigned char el_action_t;	/* Index to command array	*/
+
+typedef struct coord_t {		/* Position on the screen	*/
+	int	h;
+	int	v;
+} coord_t;
+
+typedef struct el_line_t {
+	Char 		*buffer;	/* Input line			*/
+	Char	        *cursor;	/* Cursor position		*/
+	Char	        *lastchar;	/* Last character		*/
+	const Char	*limit;		/* Max position			*/
+} el_line_t;
+
+/*
+ * Editor state
+ */
+typedef struct el_state_t {
+	int		inputmode;	/* What mode are we in?		*/
+	int		doingarg;	/* Are we getting an argument?	*/
+	int		argument;	/* Numeric argument		*/
+	int		metanext;	/* Is the next char a meta char */
+	el_action_t	lastcmd;	/* Previous command		*/
+	el_action_t	thiscmd;	/* this command 		*/
+	/*
+	 * 8519376: Use an unnamed union to force the size of el_state_t to
+	 * be the same, independent of the size of Char.
+	 */
+	union {
+	    Char	thisch;		/* char that generated it	*/
+	    wchar_t	dummy;
+	};
+} el_state_t;
+
+/*
+ * Until we come up with something better...
+ */
+#define	el_malloc(a)	malloc(a)
+#define	el_realloc(a,b)	realloc(a, b)
+#define	el_free(a)	free(a)
+
+#include "tty.h"
+#include "prompt.h"
+#include "keymacro.h"
+#include "terminal.h"
+#include "refresh.h"
+#include "chared.h"
+#include "common.h"
+#include "search.h"
+#include "hist.h"
+#include "map.h"
+#include "parse.h"
+#include "sig.h"
+#include "help.h"
+#include "read.h"
+
+struct editline {
+	Char		 *el_prog;	/* the program name		*/
+	FILE		 *el_infile;	/* Stdio stuff			*/
+	FILE		 *el_outfile;	/* Stdio stuff			*/
+	FILE		 *el_errfile;	/* Stdio stuff			*/
+	int		  el_infd;	/* Input file descriptor	*/
+	int		  el_outfd;	/* Output file descriptor	*/
+	int		  el_errfd;	/* Error file descriptor	*/
+	int		  el_flags;	/* Various flags.		*/
+	int		  el_errno;	/* Local copy of errno		*/
+	coord_t		  el_cursor;	/* Cursor location		*/
+	Char		**el_display;	/* Real screen image = what is there */
+	Char		**el_vdisplay;	/* Virtual screen image = what we see */
+	void		 *el_data;	/* Client data			*/
+	el_line_t	  el_line;	/* The current line information	*/
+	el_state_t	  el_state;	/* Current editor state		*/
+	el_terminal_t	  el_terminal;	/* Terminal dependent stuff	*/
+	el_tty_t	  el_tty;	/* Tty dependent stuff		*/
+	el_refresh_t	  el_refresh;	/* Refresh stuff		*/
+	el_prompt_t	  el_prompt;	/* Prompt stuff			*/
+	el_prompt_t	  el_rprompt;	/* Prompt stuff			*/
+	el_chared_t	  el_chared;	/* Characted editor stuff	*/
+	el_map_t	  el_map;	/* Key mapping stuff		*/
+	el_keymacro_t	  el_keymacro;	/* Key binding stuff		*/
+	el_history_t	  el_history;	/* History stuff		*/
+	el_search_t	  el_search;	/* Search stuff			*/
+	el_signal_t	  el_signal;	/* Signal handling stuff	*/
+	el_read_t	  el_read;	/* Character reading stuff	*/
+#ifdef WIDECHAR
+	ct_buffer_t       el_scratch;   /* Scratch conversion buffer    */
+	ct_buffer_t       el_lgcyconv;  /* Buffer for legacy wrappers   */
+	LineInfo          el_lgcylinfo; /* Legacy LineInfo buffer       */
+#endif
+};
+
+protected int	el_editmode(EditLine *, int, const Char **);
+
+#ifdef DEBUG
+#define	EL_ABORT(a)	do { \
+				fprintf(el->el_errfile, "%s, %d: ", \
+					 __FILE__, __LINE__); \
+				fprintf a; \
+				abort(); \
+			} while( /*CONSTCOND*/0);
+#else
+#define EL_ABORT(a)	abort()
+#endif
+#endif /* _h_el */

src/eln.c

@@ -0,0 +1,382 @@
+/*	$NetBSD: eln.c,v 1.14 2012/03/11 21:15:25 christos Exp $	*/
+
+/*-
+ * Copyright (c) 2009 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *        This product includes software developed by the NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "config.h"
+#if !defined(lint) && !defined(SCCSID)
+__RCSID("$NetBSD: eln.c,v 1.14 2012/03/11 21:15:25 christos Exp $");
+#endif /* not lint && not SCCSID */
+
+#include "histedit.h"
+#include "el.h"
+#include "read.h"
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+public int
+el_getc(EditLine *el, char *cp)
+{
+	int num_read;
+	wchar_t wc = 0;
+
+	if (!(el->el_flags & CHARSET_IS_UTF8))
+		el->el_flags |= IGNORE_EXTCHARS;
+	num_read = el_wgetc (el, &wc);
+	if (!(el->el_flags & CHARSET_IS_UTF8))
+		el->el_flags &= ~IGNORE_EXTCHARS;
+
+	if (num_read > 0)
+		*cp = (char)wc;
+	return num_read;
+}
+
+
+public void
+el_push(EditLine *el, const char *str)
+{
+	/* Using multibyte->wide string decoding works fine under single-byte
+	 * character sets too, and Does The Right Thing. */
+	el_wpush(el, ct_decode_string(str, &el->el_lgcyconv));
+}
+
+
+public const char *
+el_gets(EditLine *el, int *nread)
+{
+	const wchar_t *tmp;
+	const char *ret;
+
+	if (!(el->el_flags & CHARSET_IS_UTF8))
+		el->el_flags |= IGNORE_EXTCHARS;
+	tmp = el_wgets(el, nread);
+	if (!(el->el_flags & CHARSET_IS_UTF8))
+		el->el_flags &= ~IGNORE_EXTCHARS;
+	if (!tmp) return NULL;
+	ret = ct_encode_string(tmp, &el->el_lgcyconv);
+	if (ret)
+		*nread = strlen(ret);
+	return ret;
+}
+
+
+public int
+el_parse(EditLine *el, int argc, const char *argv[])
+{
+	int ret;
+	const wchar_t **wargv;
+
+	wargv = (const wchar_t **)
+	    ct_decode_argv(argc, argv, &el->el_lgcyconv);
+	if (!wargv)
+		return -1;
+	ret = el_wparse(el, argc, wargv);
+	ct_free_argv(wargv);
+
+	return ret;
+}
+
+
+public int
+el_set(EditLine *el, int op, ...)
+{
+	va_list ap;
+	int ret;
+
+	if (!el)
+		return -1;
+	va_start(ap, op);
+
+	switch (op) {
+	case EL_PROMPT:         /* el_pfunc_t */
+	case EL_RPROMPT: {
+		el_pfunc_t p = va_arg(ap, el_pfunc_t);
+		ret = prompt_set(el, p, 0, op, 0);
+		break;
+	}
+
+	case EL_RESIZE: {
+		el_zfunc_t p = va_arg(ap, el_zfunc_t);
+		void *arg = va_arg(ap, void *);
+		ret = ch_resizefun(el, p, arg);
+		break;
+	}
+
+	case EL_TERMINAL:       /* const char * */
+		ret = el_wset(el, op, va_arg(ap, char *));
+		break;
+
+	case EL_EDITOR:		/* const wchar_t * */
+		ret = el_wset(el, op, ct_decode_string(va_arg(ap, char *),
+		    &el->el_lgcyconv));
+		break;
+
+	case EL_SIGNAL:         /* int */
+	case EL_EDITMODE:
+	case EL_UNBUFFERED:
+	case EL_PREP_TERM:
+		ret = el_wset(el, op, va_arg(ap, int));
+		break;
+
+	case EL_BIND:   /* const char * list -> const wchar_t * list */
+	case EL_TELLTC:
+	case EL_SETTC:
+	case EL_ECHOTC:
+	case EL_SETTY: {
+		const char *argv[20];
+		int i;
+		const wchar_t **wargv;
+		for (i = 1; i < (int)__arraycount(argv); ++i)
+			if ((argv[i] = va_arg(ap, char *)) == NULL)
+			    break;
+		argv[0] = NULL;
+		wargv = (const wchar_t **)
+		    ct_decode_argv(i + 1, argv, &el->el_lgcyconv);
+		if (!wargv) {
+		    ret = -1;
+		    goto out;
+		}
+		/*
+		 * AFAIK we can't portably pass through our new wargv to
+		 * el_wset(), so we have to reimplement the body of
+		 * el_wset() for these ops.
+		 */
+		switch (op) {
+		case EL_BIND:
+			wargv[0] = STR("bind");
+			ret = map_bind(el, i, wargv);
+			break;
+		case EL_TELLTC:
+			wargv[0] = STR("telltc");
+			ret = terminal_telltc(el, i, wargv);
+			break;
+		case EL_SETTC:
+			wargv[0] = STR("settc");
+			ret = terminal_settc(el, i, wargv);
+			break;
+		case EL_ECHOTC:
+			wargv[0] = STR("echotc");
+			ret = terminal_echotc(el, i, wargv);
+			break;
+		case EL_SETTY:
+			wargv[0] = STR("setty");
+			ret = tty_stty(el, i, wargv);
+			break;
+		default:
+			ret = -1;
+		}
+		ct_free_argv(wargv);
+		break;
+	}
+
+	/* XXX: do we need to change el_func_t too? */
+	case EL_ADDFN: {          /* const char *, const char *, el_func_t */
+		const char *args[2];
+		el_func_t func;
+		wchar_t **wargv;
+
+		args[0] = va_arg(ap, const char *);
+		args[1] = va_arg(ap, const char *);
+		func = va_arg(ap, el_func_t);
+
+		wargv = ct_decode_argv(2, args, &el->el_lgcyconv);
+		if (!wargv) {
+		    ret = -1;
+		    goto out;
+		}
+		// XXX: The two strdup's leak
+		ret = map_addfunc(el, Strdup(wargv[0]), Strdup(wargv[1]),
+		    func);
+		ct_free_argv(wargv);
+		break;
+	}
+	case EL_HIST: {           /* hist_fun_t, const char * */
+		hist_fun_t fun = va_arg(ap, hist_fun_t);
+		void *ptr = va_arg(ap, void *);
+		ret = hist_set(el, fun, ptr);
+		el->el_flags |= NARROW_HISTORY;
+		break;
+	}
+	/* XXX: do we need to change el_rfunc_t? */
+	case EL_GETCFN:         /* el_rfunc_t */
+		ret = el_wset(el, op, va_arg(ap, el_rfunc_t));
+		el->el_flags |= NARROW_READ;
+		break;
+	case EL_CLIENTDATA:     /* void * */
+		ret = el_wset(el, op, va_arg(ap, void *));
+		break;
+	case EL_SETFP: {          /* int, FILE * */
+		int what = va_arg(ap, int);
+		FILE *fp = va_arg(ap, FILE *);
+		ret = el_wset(el, op, what, fp);
+		break;
+	}
+	case EL_PROMPT_ESC: /* el_pfunc_t, char */
+	case EL_RPROMPT_ESC: {
+		el_pfunc_t p = va_arg(ap, el_pfunc_t);
+		char c = (char)va_arg(ap, int);
+		ret = prompt_set(el, p, c, op, 0);
+		break;
+	}
+	case EL_REFRESH:
+		ret = el_wset(el, op);
+		break;
+	default:
+		ret = -1;
+		break;
+	}
+
+out:
+	va_end(ap);
+	return ret;
+}
+
+
+public int
+el_get(EditLine *el, int op, ...)
+{
+	va_list ap;
+	int ret;
+
+	if (!el)
+		return -1;
+
+	va_start(ap, op);
+
+	switch (op) {
+	case EL_PROMPT:         /* el_pfunc_t * */
+	case EL_RPROMPT: {
+		el_pfunc_t *p = va_arg(ap, el_pfunc_t *);
+		ret = prompt_get(el, p, 0, op);
+		break;
+	}
+
+	case EL_PROMPT_ESC: /* el_pfunc_t *, char **/
+	case EL_RPROMPT_ESC: {
+		el_pfunc_t *p = va_arg(ap, el_pfunc_t *);
+		char *c = va_arg(ap, char *);
+		wchar_t wc = 0;
+		ret = prompt_get(el, p, &wc, op);
+		*c = (char)wc;
+		break;
+	}
+
+	case EL_EDITOR: {
+		const char **p = va_arg(ap, const char **);
+		const wchar_t *pw;
+		ret = el_wget(el, op, &pw);
+		*p = ct_encode_string(pw, &el->el_lgcyconv);
+		if (!el->el_lgcyconv.csize)
+			ret = -1;
+		break;
+	}
+
+	case EL_TERMINAL:       /* const char ** */
+		ret = el_wget(el, op, va_arg(ap, const char **));
+		break;
+
+	case EL_SIGNAL:         /* int * */
+	case EL_EDITMODE:
+	case EL_UNBUFFERED:
+	case EL_PREP_TERM:
+		ret = el_wget(el, op, va_arg(ap, int *));
+		break;
+
+	case EL_GETTC: {
+		char *argv[20];
+		static char gettc[] = "gettc";
+		int i;
+		for (i = 1; i < (int)__arraycount(argv); ++i)
+			if ((argv[i] = va_arg(ap, char *)) == NULL)
+				break;
+		argv[0] = gettc;
+		ret = terminal_gettc(el, i, argv);
+		break;
+	}
+
+	/* XXX: do we need to change el_rfunc_t? */
+	case EL_GETCFN:         /* el_rfunc_t */
+		ret = el_wget(el, op, va_arg(ap, el_rfunc_t *));
+		break;
+
+	case EL_CLIENTDATA:     /* void ** */
+		ret = el_wget(el, op, va_arg(ap, void **));
+		break;
+
+	case EL_GETFP: {          /* int, FILE ** */
+		int what = va_arg(ap, int);
+		FILE **fpp = va_arg(ap, FILE **);
+		ret = el_wget(el, op, what, fpp);
+		break;
+	}
+
+	default:
+		ret = -1;
+		break;
+	}
+
+	va_end(ap);
+	return ret;
+}
+
+
+const LineInfo *
+el_line(EditLine *el)
+{
+	const LineInfoW *winfo = el_wline(el);
+	LineInfo *info = &el->el_lgcylinfo;
+	size_t offset;
+	const Char *p;
+
+	info->buffer   = ct_encode_string(winfo->buffer, &el->el_lgcyconv);
+
+	offset = 0;
+	for (p = winfo->buffer; p < winfo->cursor; p++)
+		offset += ct_enc_width(*p);
+	info->cursor = info->buffer + offset;
+
+	offset = 0;
+	for (p = winfo->buffer; p < winfo->lastchar; p++)
+		offset += ct_enc_width(*p);
+	info->lastchar = info->buffer + offset;
+
+	return info;
+}
+
+
+int
+el_insertstr(EditLine *el, const char *str)
+{
+	return el_winsertstr(el, ct_decode_string(str, &el->el_lgcyconv));
+}

src/emacs.c

@@ -0,0 +1,508 @@
+/*	$NetBSD: emacs.c,v 1.25 2011/07/29 15:16:33 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#if !defined(lint) && !defined(SCCSID)
+#if 0
+static char sccsid[] = "@(#)emacs.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: emacs.c,v 1.25 2011/07/29 15:16:33 christos Exp $");
+#endif
+#endif /* not lint && not SCCSID */
+
+/*
+ * emacs.c: Emacs functions
+ */
+#include "el.h"
+
+/* em_delete_or_list():
+ *	Delete character under cursor or list completions if at end of line
+ *	[^D]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_delete_or_list(EditLine *el, Int c)
+{
+
+	if (el->el_line.cursor == el->el_line.lastchar) {
+					/* if I'm at the end */
+		if (el->el_line.cursor == el->el_line.buffer) {
+					/* and the beginning */
+			terminal_writec(el, c);	/* then do an EOF */
+			return CC_EOF;
+		} else {
+			/*
+			 * Here we could list completions, but it is an
+			 * error right now
+			 */
+			terminal_beep(el);
+			return CC_ERROR;
+		}
+	} else {
+		if (el->el_state.doingarg)
+			c_delafter(el, el->el_state.argument);
+		else
+			c_delafter1(el);
+		if (el->el_line.cursor > el->el_line.lastchar)
+			el->el_line.cursor = el->el_line.lastchar;
+				/* bounds check */
+		return CC_REFRESH;
+	}
+}
+
+
+/* em_delete_next_word():
+ *	Cut from cursor to end of current word
+ *	[M-d]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_delete_next_word(EditLine *el, Int c __attribute__((__unused__)))
+{
+	Char *cp, *p, *kp;
+
+	if (el->el_line.cursor == el->el_line.lastchar)
+		return CC_ERROR;
+
+	cp = c__next_word(el->el_line.cursor, el->el_line.lastchar,
+	    el->el_state.argument, ce__isword);
+
+	for (p = el->el_line.cursor, kp = el->el_chared.c_kill.buf; p < cp; p++)
+				/* save the text */
+		*kp++ = *p;
+	el->el_chared.c_kill.last = kp;
+
+	c_delafter(el, (int)(cp - el->el_line.cursor));	/* delete after dot */
+	if (el->el_line.cursor > el->el_line.lastchar)
+		el->el_line.cursor = el->el_line.lastchar;
+				/* bounds check */
+	return CC_REFRESH;
+}
+
+
+/* em_yank():
+ *	Paste cut buffer at cursor position
+ *	[^Y]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_yank(EditLine *el, Int c __attribute__((__unused__)))
+{
+	Char *kp, *cp;
+
+	if (el->el_chared.c_kill.last == el->el_chared.c_kill.buf)
+		return CC_NORM;
+
+	if (el->el_line.lastchar +
+	    (el->el_chared.c_kill.last - el->el_chared.c_kill.buf) >=
+	    el->el_line.limit)
+		return CC_ERROR;
+
+	el->el_chared.c_kill.mark = el->el_line.cursor;
+	cp = el->el_line.cursor;
+
+	/* open the space, */
+	c_insert(el,
+	    (int)(el->el_chared.c_kill.last - el->el_chared.c_kill.buf));
+	/* copy the chars */
+	for (kp = el->el_chared.c_kill.buf; kp < el->el_chared.c_kill.last; kp++)
+		*cp++ = *kp;
+
+	/* if an arg, cursor at beginning else cursor at end */
+	if (el->el_state.argument == 1)
+		el->el_line.cursor = cp;
+
+	return CC_REFRESH;
+}
+
+
+/* em_kill_line():
+ *	Cut the entire line and save in cut buffer
+ *	[^U]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_kill_line(EditLine *el, Int c __attribute__((__unused__)))
+{
+	Char *kp, *cp;
+
+	cp = el->el_line.buffer;
+	kp = el->el_chared.c_kill.buf;
+	while (cp < el->el_line.lastchar)
+		*kp++ = *cp++;	/* copy it */
+	el->el_chared.c_kill.last = kp;
+				/* zap! -- delete all of it */
+	el->el_line.lastchar = el->el_line.buffer;
+	el->el_line.cursor = el->el_line.buffer;
+	return CC_REFRESH;
+}
+
+
+/* em_kill_region():
+ *	Cut area between mark and cursor and save in cut buffer
+ *	[^W]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_kill_region(EditLine *el, Int c __attribute__((__unused__)))
+{
+	Char *kp, *cp;
+
+	if (!el->el_chared.c_kill.mark)
+		return CC_ERROR;
+
+	if (el->el_chared.c_kill.mark > el->el_line.cursor) {
+		cp = el->el_line.cursor;
+		kp = el->el_chared.c_kill.buf;
+		while (cp < el->el_chared.c_kill.mark)
+			*kp++ = *cp++;	/* copy it */
+		el->el_chared.c_kill.last = kp;
+		c_delafter(el, (int)(cp - el->el_line.cursor));
+	} else {		/* mark is before cursor */
+		cp = el->el_chared.c_kill.mark;
+		kp = el->el_chared.c_kill.buf;
+		while (cp < el->el_line.cursor)
+			*kp++ = *cp++;	/* copy it */
+		el->el_chared.c_kill.last = kp;
+		c_delbefore(el, (int)(cp - el->el_chared.c_kill.mark));
+		el->el_line.cursor = el->el_chared.c_kill.mark;
+	}
+	return CC_REFRESH;
+}
+
+
+/* em_copy_region():
+ *	Copy area between mark and cursor to cut buffer
+ *	[M-W]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_copy_region(EditLine *el, Int c __attribute__((__unused__)))
+{
+	Char *kp, *cp;
+
+	if (!el->el_chared.c_kill.mark)
+		return CC_ERROR;
+
+	if (el->el_chared.c_kill.mark > el->el_line.cursor) {
+		cp = el->el_line.cursor;
+		kp = el->el_chared.c_kill.buf;
+		while (cp < el->el_chared.c_kill.mark)
+			*kp++ = *cp++;	/* copy it */
+		el->el_chared.c_kill.last = kp;
+	} else {
+		cp = el->el_chared.c_kill.mark;
+		kp = el->el_chared.c_kill.buf;
+		while (cp < el->el_line.cursor)
+			*kp++ = *cp++;	/* copy it */
+		el->el_chared.c_kill.last = kp;
+	}
+	return CC_NORM;
+}
+
+
+/* em_gosmacs_transpose():
+ *	Exchange the two characters before the cursor
+ *	Gosling emacs transpose chars [^T]
+ */
+protected el_action_t
+em_gosmacs_transpose(EditLine *el, Int c)
+{
+
+	if (el->el_line.cursor > &el->el_line.buffer[1]) {
+		/* must have at least two chars entered */
+		c = el->el_line.cursor[-2];
+		el->el_line.cursor[-2] = el->el_line.cursor[-1];
+		el->el_line.cursor[-1] = c;
+		return CC_REFRESH;
+	} else
+		return CC_ERROR;
+}
+
+
+/* em_next_word():
+ *	Move next to end of current word
+ *	[M-f]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_next_word(EditLine *el, Int c __attribute__((__unused__)))
+{
+	if (el->el_line.cursor == el->el_line.lastchar)
+		return CC_ERROR;
+
+	el->el_line.cursor = c__next_word(el->el_line.cursor,
+	    el->el_line.lastchar,
+	    el->el_state.argument,
+	    ce__isword);
+
+	if (el->el_map.type == MAP_VI)
+		if (el->el_chared.c_vcmd.action != NOP) {
+			cv_delfini(el);
+			return CC_REFRESH;
+		}
+	return CC_CURSOR;
+}
+
+
+/* em_upper_case():
+ *	Uppercase the characters from cursor to end of current word
+ *	[M-u]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_upper_case(EditLine *el, Int c __attribute__((__unused__)))
+{
+	Char *cp, *ep;
+
+	ep = c__next_word(el->el_line.cursor, el->el_line.lastchar,
+	    el->el_state.argument, ce__isword);
+
+	for (cp = el->el_line.cursor; cp < ep; cp++)
+		if (Islower(*cp))
+			*cp = Toupper(*cp);
+
+	el->el_line.cursor = ep;
+	if (el->el_line.cursor > el->el_line.lastchar)
+		el->el_line.cursor = el->el_line.lastchar;
+	return CC_REFRESH;
+}
+
+
+/* em_capitol_case():
+ *	Capitalize the characters from cursor to end of current word
+ *	[M-c]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_capitol_case(EditLine *el, Int c __attribute__((__unused__)))
+{
+	Char *cp, *ep;
+
+	ep = c__next_word(el->el_line.cursor, el->el_line.lastchar,
+	    el->el_state.argument, ce__isword);
+
+	for (cp = el->el_line.cursor; cp < ep; cp++) {
+		if (Isalpha(*cp)) {
+			if (Islower(*cp))
+				*cp = Toupper(*cp);
+			cp++;
+			break;
+		}
+	}
+	for (; cp < ep; cp++)
+		if (Isupper(*cp))
+			*cp = Tolower(*cp);
+
+	el->el_line.cursor = ep;
+	if (el->el_line.cursor > el->el_line.lastchar)
+		el->el_line.cursor = el->el_line.lastchar;
+	return CC_REFRESH;
+}
+
+
+/* em_lower_case():
+ *	Lowercase the characters from cursor to end of current word
+ *	[M-l]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_lower_case(EditLine *el, Int c __attribute__((__unused__)))
+{
+	Char *cp, *ep;
+
+	ep = c__next_word(el->el_line.cursor, el->el_line.lastchar,
+	    el->el_state.argument, ce__isword);
+
+	for (cp = el->el_line.cursor; cp < ep; cp++)
+		if (Isupper(*cp))
+			*cp = Tolower(*cp);
+
+	el->el_line.cursor = ep;
+	if (el->el_line.cursor > el->el_line.lastchar)
+		el->el_line.cursor = el->el_line.lastchar;
+	return CC_REFRESH;
+}
+
+
+/* em_set_mark():
+ *	Set the mark at cursor
+ *	[^@]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_set_mark(EditLine *el, Int c __attribute__((__unused__)))
+{
+
+	el->el_chared.c_kill.mark = el->el_line.cursor;
+	return CC_NORM;
+}
+
+
+/* em_exchange_mark():
+ *	Exchange the cursor and mark
+ *	[^X^X]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_exchange_mark(EditLine *el, Int c __attribute__((__unused__)))
+{
+	Char *cp;
+
+	cp = el->el_line.cursor;
+	el->el_line.cursor = el->el_chared.c_kill.mark;
+	el->el_chared.c_kill.mark = cp;
+	return CC_CURSOR;
+}
+
+
+/* em_universal_argument():
+ *	Universal argument (argument times 4)
+ *	[^U]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_universal_argument(EditLine *el, Int c __attribute__((__unused__)))
+{				/* multiply current argument by 4 */
+
+	if (el->el_state.argument > 1000000)
+		return CC_ERROR;
+	el->el_state.doingarg = 1;
+	el->el_state.argument *= 4;
+	return CC_ARGHACK;
+}
+
+
+/* em_meta_next():
+ *	Add 8th bit to next character typed
+ *	[<ESC>]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_meta_next(EditLine *el, Int c __attribute__((__unused__)))
+{
+
+	el->el_state.metanext = 1;
+	return CC_ARGHACK;
+}
+
+
+/* em_toggle_overwrite():
+ *	Switch from insert to overwrite mode or vice versa
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_toggle_overwrite(EditLine *el, Int c __attribute__((__unused__)))
+{
+
+	el->el_state.inputmode = (el->el_state.inputmode == MODE_INSERT) ?
+	    MODE_REPLACE : MODE_INSERT;
+	return CC_NORM;
+}
+
+
+/* em_copy_prev_word():
+ *	Copy current word to cursor
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_copy_prev_word(EditLine *el, Int c __attribute__((__unused__)))
+{
+	Char *cp, *oldc, *dp;
+
+	if (el->el_line.cursor == el->el_line.buffer)
+		return CC_ERROR;
+
+	oldc = el->el_line.cursor;
+	/* does a bounds check */
+	cp = c__prev_word(el->el_line.cursor, el->el_line.buffer,
+	    el->el_state.argument, ce__isword);
+
+	c_insert(el, (int)(oldc - cp));
+	for (dp = oldc; cp < oldc && dp < el->el_line.lastchar; cp++)
+		*dp++ = *cp;
+
+	el->el_line.cursor = dp;/* put cursor at end */
+
+	return CC_REFRESH;
+}
+
+
+/* em_inc_search_next():
+ *	Emacs incremental next search
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_inc_search_next(EditLine *el, Int c __attribute__((__unused__)))
+{
+
+	el->el_search.patlen = 0;
+	return ce_inc_search(el, ED_SEARCH_NEXT_HISTORY);
+}
+
+
+/* em_inc_search_prev():
+ *	Emacs incremental reverse search
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_inc_search_prev(EditLine *el, Int c __attribute__((__unused__)))
+{
+
+	el->el_search.patlen = 0;
+	return ce_inc_search(el, ED_SEARCH_PREV_HISTORY);
+}
+
+
+/* em_delete_prev_char():
+ *	Delete the character to the left of the cursor
+ *	[^?]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_delete_prev_char(EditLine *el, Int c __attribute__((__unused__)))
+{
+
+	if (el->el_line.cursor <= el->el_line.buffer)
+		return CC_ERROR;
+
+	if (el->el_state.doingarg)
+		c_delbefore(el, el->el_state.argument);
+	else
+		c_delbefore1(el);
+	el->el_line.cursor -= el->el_state.argument;
+	if (el->el_line.cursor < el->el_line.buffer)
+		el->el_line.cursor = el->el_line.buffer;
+	return CC_REFRESH;
+}

src/filecomplete.c

@@ -0,0 +1,734 @@
+/*	$NetBSD: filecomplete.c,v 1.34 2014/10/18 15:07:02 riz Exp $	*/
+
+/*-
+ * Copyright (c) 1997 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jaromir Dolecek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#if !defined(lint) && !defined(SCCSID)
+__RCSID("$NetBSD: filecomplete.c,v 1.34 2014/10/18 15:07:02 riz Exp $");
+#endif /* not lint && not SCCSID */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdio.h>
+#include <dirent.h>
+#include <string.h>
+#include <pwd.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <limits.h>
+#include <errno.h>
+#include <fcntl.h>
+
+#include "el.h"
+#include "fcns.h"		/* for EL_NUM_FCNS */
+#include "histedit.h"
+#include "filecomplete.h"
+
+static const Char break_chars[] = { ' ', '\t', '\n', '"', '\\', '\'', '`', '@',
+    '$', '>', '<', '=', ';', '|', '&', '{', '(', '\0' };
+/* Tilde is deliberately omitted here, we treat it specially. */
+static const Char extra_quote_chars[] = { ')', '}', '*', '?', '[', '$', '\0' };
+
+
+/********************************/
+/* completion functions */
+
+/*
+ * does tilde expansion of strings of type ``~user/foo''
+ * if ``user'' isn't valid user name or ``txt'' doesn't start
+ * w/ '~', returns pointer to strdup()ed copy of ``txt''
+ *
+ * it's the caller's responsibility to free() the returned string
+ */
+char *
+fn_tilde_expand(const char *txt)
+{
+#if defined(HAVE_GETPW_R_POSIX) || defined(HAVE_GETPW_R_DRAFT)
+	struct passwd pwres;
+	char pwbuf[1024];
+#endif
+	struct passwd *pass;
+	char *temp;
+	size_t len = 0;
+
+	if (txt[0] != '~')
+		return strdup(txt);
+
+	temp = strchr(txt + 1, '/');
+	if (temp == NULL) {
+		temp = strdup(txt + 1);
+		if (temp == NULL)
+			return NULL;
+	} else {
+		/* text until string after slash */
+		len = (size_t)(temp - txt + 1);
+		temp = el_malloc(len * sizeof(*temp));
+		if (temp == NULL)
+			return NULL;
+		(void)strncpy(temp, txt + 1, len - 2);
+		temp[len - 2] = '\0';
+	}
+	if (temp[0] == 0) {
+#ifdef HAVE_GETPW_R_POSIX
+ 		if (getpwuid_r(getuid(), &pwres, pwbuf, sizeof(pwbuf),
+		    &pass) != 0)
+ 			pass = NULL;
+#elif HAVE_GETPW_R_DRAFT
+		pass = getpwuid_r(getuid(), &pwres, pwbuf, sizeof(pwbuf));
+#else
+		pass = getpwuid(getuid());
+#endif
+	} else {
+#ifdef HAVE_GETPW_R_POSIX
+		if (getpwnam_r(temp, &pwres, pwbuf, sizeof(pwbuf), &pass) != 0)
+			pass = NULL;
+#elif HAVE_GETPW_R_DRAFT
+		pass = getpwnam_r(temp, &pwres, pwbuf, sizeof(pwbuf));
+#else
+		pass = getpwnam(temp);
+#endif
+	}
+	el_free(temp);		/* value no more needed */
+	if (pass == NULL)
+		return strdup(txt);
+
+	/* update pointer txt to point at string immedially following */
+	/* first slash */
+	txt += len;
+
+	len = strlen(pass->pw_dir) + 1 + strlen(txt) + 1;
+	temp = el_malloc(len * sizeof(*temp));
+	if (temp == NULL)
+		return NULL;
+	(void)snprintf(temp, len, "%s/%s", pass->pw_dir, txt);
+
+	return temp;
+}
+
+
+/*
+ * return first found file name starting by the ``text'' or NULL if no
+ * such file can be found
+ * value of ``state'' is ignored
+ *
+ * it's the caller's responsibility to free the returned string
+ */
+char *
+fn_filename_completion_function(const char *text, int state)
+{
+	static DIR *dir = NULL;
+	static char *filename = NULL, *dirname = NULL, *dirpath = NULL;
+	static size_t filename_len = 0;
+	struct dirent *entry;
+	char *temp;
+	size_t len;
+
+	if (state == 0 || dir == NULL) {
+		temp = strrchr(text, '/');
+		if (temp) {
+			char *nptr;
+			temp++;
+			nptr = el_realloc(filename, (strlen(temp) + 1) *
+			    sizeof(*nptr));
+			if (nptr == NULL) {
+				el_free(filename);
+				filename = NULL;
+				return NULL;
+			}
+			filename = nptr;
+			(void)strcpy(filename, temp);
+			len = (size_t)(temp - text);	/* including last slash */
+
+			nptr = el_realloc(dirname, (len + 1) *
+			    sizeof(*nptr));
+			if (nptr == NULL) {
+				el_free(dirname);
+				dirname = NULL;
+				return NULL;
+			}
+			dirname = nptr;
+			(void)strncpy(dirname, text, len);
+			dirname[len] = '\0';
+		} else {
+			el_free(filename);
+			if (*text == 0)
+				filename = NULL;
+			else {
+				filename = strdup(text);
+				if (filename == NULL)
+					return NULL;
+			}
+			el_free(dirname);
+			dirname = NULL;
+		}
+
+		if (dir != NULL) {
+			(void)closedir(dir);
+			dir = NULL;
+		}
+
+		/* support for ``~user'' syntax */
+
+		el_free(dirpath);
+		dirpath = NULL;
+		if (dirname == NULL) {
+			if ((dirname = strdup("")) == NULL)
+				return NULL;
+			dirpath = strdup("./");
+		} else if (*dirname == '~')
+			dirpath = fn_tilde_expand(dirname);
+		else
+			dirpath = strdup(dirname);
+
+		if (dirpath == NULL)
+			return NULL;
+
+		dir = opendir(dirpath);
+		if (!dir)
+			return NULL;	/* cannot open the directory */
+
+		/* will be used in cycle */
+		filename_len = filename ? strlen(filename) : 0;
+	}
+
+	/* find the match */
+	while ((entry = readdir(dir)) != NULL) {
+		/* skip . and .. */
+		if (entry->d_name[0] == '.' && (!entry->d_name[1]
+		    || (entry->d_name[1] == '.' && !entry->d_name[2])))
+			continue;
+		if (filename_len == 0)
+			break;
+		/* otherwise, get first entry where first */
+		/* filename_len characters are equal	  */
+		if (entry->d_name[0] == filename[0]
+#if HAVE_STRUCT_DIRENT_D_NAMLEN
+		    && entry->d_namlen >= filename_len
+#else
+		    && strlen(entry->d_name) >= filename_len
+#endif
+		    && strncmp(entry->d_name, filename,
+			filename_len) == 0)
+			break;
+	}
+
+	if (entry) {		/* match found */
+
+#if HAVE_STRUCT_DIRENT_D_NAMLEN
+		len = entry->d_namlen;
+#else
+		len = strlen(entry->d_name);
+#endif
+
+		len = strlen(dirname) + len + 1;
+		temp = el_malloc(len * sizeof(*temp));
+		if (temp == NULL)
+			return NULL;
+		(void)snprintf(temp, len, "%s%s", dirname, entry->d_name);
+	} else {
+		(void)closedir(dir);
+		dir = NULL;
+		temp = NULL;
+	}
+
+	return temp;
+}
+
+
+static const char *
+append_char_function(const char *name)
+{
+	struct stat stbuf;
+	char *expname = *name == '~' ? fn_tilde_expand(name) : NULL;
+	const char *rs = " ";
+
+	if (stat(expname ? expname : name, &stbuf) == -1)
+		goto out;
+	if (S_ISDIR(stbuf.st_mode))
+		rs = "/";
+out:
+	if (expname)
+		el_free(expname);
+	return rs;
+}
+/*
+ * returns list of completions for text given
+ * non-static for readline.
+ */
+char ** completion_matches(const char *, char *(*)(const char *, int));
+char **
+completion_matches(const char *text, char *(*genfunc)(const char *, int))
+{
+	char **match_list = NULL, *retstr, *prevstr;
+	size_t match_list_len, max_equal, which, i;
+	size_t matches;
+
+	matches = 0;
+	match_list_len = 1;
+	while ((retstr = (*genfunc) (text, (int)matches)) != NULL) {
+		/* allow for list terminator here */
+		if (matches + 3 >= match_list_len) {
+			char **nmatch_list;
+			while (matches + 3 >= match_list_len)
+				match_list_len <<= 1;
+			nmatch_list = el_realloc(match_list,
+			    match_list_len * sizeof(*nmatch_list));
+			if (nmatch_list == NULL) {
+				el_free(match_list);
+				return NULL;
+			}
+			match_list = nmatch_list;
+
+		}
+		match_list[++matches] = retstr;
+	}
+
+	if (!match_list)
+		return NULL;	/* nothing found */
+
+	/* find least denominator and insert it to match_list[0] */
+	which = 2;
+	prevstr = match_list[1];
+	max_equal = strlen(prevstr);
+	for (; which <= matches; which++) {
+		for (i = 0; i < max_equal &&
+		    prevstr[i] == match_list[which][i]; i++)
+			continue;
+		max_equal = i;
+	}
+
+	retstr = el_malloc((max_equal + 1) * sizeof(*retstr));
+	if (retstr == NULL) {
+		el_free(match_list);
+		return NULL;
+	}
+	(void)strncpy(retstr, match_list[1], max_equal);
+	retstr[max_equal] = '\0';
+	match_list[0] = retstr;
+
+	/* add NULL as last pointer to the array */
+	match_list[matches + 1] = NULL;
+
+	return match_list;
+}
+
+/*
+ * Sort function for qsort(). Just wrapper around strcasecmp().
+ */
+static int
+_fn_qsort_string_compare(const void *i1, const void *i2)
+{
+	const char *s1 = ((const char * const *)i1)[0];
+	const char *s2 = ((const char * const *)i2)[0];
+
+	return strcasecmp(s1, s2);
+}
+
+/*
+ * Display list of strings in columnar format on readline's output stream.
+ * 'matches' is list of strings, 'num' is number of strings in 'matches',
+ * 'width' is maximum length of string in 'matches'.
+ *
+ * matches[0] is not one of the match strings, but it is counted in
+ * num, so the strings are matches[1] *through* matches[num-1].
+ */
+void
+fn_display_match_list (EditLine *el, char **matches, size_t num, size_t width)
+{
+	size_t line, lines, col, cols, thisguy;
+	int screenwidth = el->el_terminal.t_size.h;
+
+	/* Ignore matches[0]. Avoid 1-based array logic below. */
+	matches++;
+	num--;
+
+	/*
+	 * Find out how many entries can be put on one line; count
+	 * with one space between strings the same way it's printed.
+	 */
+	cols = (size_t)screenwidth / (width + 1);
+	if (cols == 0)
+		cols = 1;
+
+	/* how many lines of output, rounded up */
+	lines = (num + cols - 1) / cols;
+
+	/* Sort the items. */
+	qsort(matches, num, sizeof(char *), _fn_qsort_string_compare);
+
+	/*
+	 * On the ith line print elements i, i+lines, i+lines*2, etc.
+	 */
+	for (line = 0; line < lines; line++) {
+		for (col = 0; col < cols; col++) {
+			thisguy = line + col * lines;
+			if (thisguy >= num)
+				break;
+			(void)fprintf(el->el_outfile, "%s%-*s",
+			    col == 0 ? "" : " ", (int)width, matches[thisguy]);
+		}
+		(void)fprintf(el->el_outfile, "\n");
+	}
+}
+
+#ifdef WIDECHAR
+/* This is ugly, but we need to set rl_line_buffer to the encoded buffer,
+ * which may get changed by realloc() in the el_line() call.
+ */
+extern char *rl_line_buffer;
+#endif /* WIDECHAR */
+/*
+ * Complete the word at or before point,
+ * 'what_to_do' says what to do with the completion.
+ * \t   means do standard completion.
+ * `?' means list the possible completions.
+ * `*' means insert all of the possible completions.
+ * `!' means to do standard completion, and list all possible completions if
+ * there is more than one.
+ *
+ * Note: '*' support is not implemented
+ *       '!' could never be invoked
+ */
+int
+fn_complete(EditLine *el,
+	char *(*complet_func)(const char *, int),
+	char **(*attempted_completion_function)(const char *, int, int),
+	const Char *word_break, const Char *special_prefixes,
+	const char *(*app_func)(const char *), size_t query_items,
+	int *completion_type, int *over, int *point, int *end,
+	const Char *(*find_word_start_func)(const Char *, const Char *),
+	char *(*dequoting_func)(const char *),
+	char *(*quoting_func)(const char *))
+{
+	const LineInfo *li;
+#ifdef WIDECHAR
+	const LineInfoW *wli;
+#endif /* WIDECHAR */
+	char *temp;
+	char *dequoted_temp;
+        char **matches;
+	const Char *ctemp;
+	size_t len;
+#ifdef WIDECHAR
+	size_t ctemp_off;
+#endif /* WIDECHAR */
+	int what_to_do = '\t';
+	int retval = CC_NORM;
+
+	if (el->el_state.lastcmd == el->el_state.thiscmd)
+		what_to_do = '?';
+
+	/* readline's rl_complete() has to be told what we did... */
+	if (completion_type != NULL)
+		*completion_type = what_to_do;
+
+	if (!complet_func)
+		complet_func = fn_filename_completion_function;
+	if (!app_func)
+		app_func = append_char_function;
+
+	/* We now look backwards for the start of a filename/variable word */
+#ifdef WIDECHAR
+	/* Map li to wli for the wide character version */
+#	define li	wli
+#endif /* WIDECHAR */
+	li = FUN(el,line)(el);
+	if (find_word_start_func)
+		ctemp = find_word_start_func(li->buffer, li->cursor);
+	else {
+		ctemp = li->cursor;
+		while (ctemp > li->buffer
+		    && !Strchr(word_break, ctemp[-1])
+		    && (!special_prefixes || !Strchr(special_prefixes, ctemp[-1]) ) )
+			ctemp--;
+	}
+
+#ifdef WIDECHAR
+	/* Unmap li and convert wide character values */
+#	undef li
+	li = el_line(el);
+	{
+		const Char *p;
+		ctemp_off = 0;
+		for (p = wli->buffer; p < ctemp; p++)
+			ctemp_off += ct_enc_width(*p);
+		len = (li->cursor - li->buffer) - ctemp_off;
+	}
+	rl_line_buffer = li->buffer;
+#else /* !WIDECHAR */
+	len = (size_t)(li->cursor - ctemp);
+#endif /* !WIDECHAR */
+	temp = el_malloc((len + 1) * sizeof(*temp));
+#ifdef WIDECHAR
+	(void)strncpy(temp, li->buffer + ctemp_off, len);
+#else /* !WIDECHAR */
+	(void)strncpy(temp, ctemp, len);
+#endif /* !WIDECHAR */
+	temp[len] = '\0';
+
+	if (dequoting_func) {
+		dequoted_temp = dequoting_func(temp);
+		if (dequoted_temp == NULL)
+			return retval;
+	} else
+		dequoted_temp = NULL;
+
+	/* these can be used by function called in completion_matches() */
+	/* or (*attempted_completion_function)() */
+	if (point != 0)
+		*point = (int)(li->cursor - li->buffer);
+	if (end != NULL)
+		*end = (int)(li->lastchar - li->buffer);
+
+	if (attempted_completion_function) {
+		int cur_off = (int)(li->cursor - li->buffer);
+		matches = (*attempted_completion_function)(
+		    dequoted_temp ? dequoted_temp : temp,
+		    cur_off - (int)len, cur_off);
+	} else
+		matches = 0;
+	if (!attempted_completion_function || 
+	    (over != NULL && !*over && !matches))
+		matches = completion_matches(
+		    dequoted_temp ? dequoted_temp : temp, complet_func);
+
+	if (over != NULL)
+		*over = 0;
+
+	if (matches) {
+		int i;
+		size_t matches_num, maxlen, match_len, match_display=1;
+
+		retval = CC_REFRESH;
+		/*
+		 * Only replace the completed string with common part of
+		 * possible matches if there is possible completion.
+		 */
+		if (matches[0][0] != '\0') {
+			char *quoted_match;
+			if (quoting_func) {
+				quoted_match = quoting_func(matches[0]);
+				if (quoted_match == NULL)
+					goto free_matches;
+			} else
+				quoted_match = NULL;
+#ifdef WIDECHAR
+			len = wli->cursor - ctemp;
+#endif /* WIDECHAR */
+			el_deletestr(el, (int) len);
+			FUN(el,insertstr)(el,
+			    ct_decode_string(quoted_match ? quoted_match :
+			        matches[0] , &el->el_scratch));
+			free(quoted_match);
+		}
+
+		if (what_to_do == '?')
+			goto display_matches;
+
+		if (matches[2] == NULL &&
+		    (matches[1] == NULL || strcmp(matches[0], matches[1]) == 0)) {
+			/*
+			 * We found exact match. Add a space after
+			 * it, unless we do filename completion and the
+			 * object is a directory.
+			 */
+			FUN(el,insertstr)(el,
+			    ct_decode_string((*app_func)(matches[0]),
+			    &el->el_scratch));
+		} else if (what_to_do == '!') {
+    display_matches:
+			/*
+			 * More than one match and requested to list possible
+			 * matches.
+			 */
+
+			for(i = 1, maxlen = 0; matches[i]; i++) {
+				match_len = strlen(matches[i]);
+				if (match_len > maxlen)
+					maxlen = match_len;
+			}
+			/* matches[1] through matches[i-1] are available */
+			matches_num = (size_t)(i - 1);
+				
+			/* newline to get on next line from command line */
+			(void)fprintf(el->el_outfile, "\n");
+
+			/*
+			 * If there are too many items, ask user for display
+			 * confirmation.
+			 */
+			if (matches_num > query_items) {
+				(void)fprintf(el->el_outfile,
+				    "Display all %zu possibilities? (y or n) ",
+				    matches_num);
+				(void)fflush(el->el_outfile);
+				if (getc(stdin) != 'y')
+					match_display = 0;
+				(void)fprintf(el->el_outfile, "\n");
+			}
+
+			if (match_display) {
+				/*
+				 * Interface of this function requires the
+				 * strings be matches[1..num-1] for compat.
+				 * We have matches_num strings not counting
+				 * the prefix in matches[0], so we need to
+				 * add 1 to matches_num for the call.
+				 */
+				fn_display_match_list(el, matches,
+				    matches_num+1, maxlen);
+			}
+			retval = CC_REDISPLAY;
+		} else if (matches[0][0]) {
+			/*
+			 * There was some common match, but the name was
+			 * not complete enough. Next tab will print possible
+			 * completions.
+			 */
+			el_beep(el);
+		} else {
+			/* lcd is not a valid object - further specification */
+			/* is needed */
+			el_beep(el);
+			retval = CC_NORM;
+		}
+
+free_matches:
+		/* free elements of array and the array itself */
+		for (i = 0; matches[i]; i++)
+			el_free(matches[i]);
+		el_free(matches);
+		matches = NULL;
+	}
+	free(dequoted_temp);
+	el_free(temp);
+	return retval;
+}
+
+/*
+ * el-compatible wrapper around rl_complete; needed for key binding
+ */
+/* ARGSUSED */
+unsigned char
+_el_fn_complete(EditLine *el, int ch __attribute__((__unused__)))
+{
+	return (unsigned char)fn_complete(el, NULL, NULL,
+	    break_chars, NULL, NULL, (size_t)100,
+	    NULL, NULL, NULL, NULL,
+	    NULL, NULL, NULL);
+}
+
+static const Char *
+sh_find_word_start(const Char *buffer, const Char *cursor)
+{
+	const Char *word_start = buffer;
+
+	while (buffer < cursor) {
+		if (*buffer == '\\')
+			buffer++;
+		else if (Strchr(break_chars, *buffer))
+			word_start = buffer + 1;
+		buffer++;
+	}
+	return word_start;
+}
+
+static char *
+sh_quote(const char *str)
+{
+	const char *src;
+	int extra_len = 0;
+	char *quoted_str, *dst;
+
+	 for (src = str; *src != '\0'; src++)
+		if (Strchr(break_chars, *src) ||
+		    Strchr(extra_quote_chars, *src))
+			extra_len++;
+
+	quoted_str = malloc(sizeof(*quoted_str) *
+	     (strlen(str) + extra_len + 1));
+	if (quoted_str == NULL)
+		return NULL;
+
+	dst = quoted_str;
+	for (src = str; *src != '\0'; src++) {
+		if (Strchr(break_chars, *src) ||
+		    Strchr(extra_quote_chars, *src))
+			*dst++ = '\\';
+		*dst++ = *src;
+	}
+	*dst = '\0';
+
+	return quoted_str;
+}
+
+static char *
+sh_dequote(const char *str)
+{
+	char *dequoted_str, *dst;
+
+	/* save extra space to replace \~ with ./~ */
+	dequoted_str = malloc(sizeof(*dequoted_str) * (strlen(str) + 1 + 1));
+	if (dequoted_str == NULL)
+		return NULL;
+
+	dst = dequoted_str;
+
+	/* dequote \~ at start as ./~ */
+	if (*str == '\\' && str[1] == '~') {
+		str++;
+		*dst++ = '.';
+		*dst++ = '/';
+	}
+
+	while (*str) {
+		if (*str == '\\')
+			str++;
+		if (*str)
+			*dst++ = *str++;
+	}
+	*dst = '\0';
+
+	return dequoted_str;
+}
+
+/*
+ * completion function using sh quoting rules; for key binding
+ */
+/* ARGSUSED */
+unsigned char
+_el_fn_sh_complete(EditLine *el, int ch __attribute__((__unused__)))
+{
+	return (unsigned char)fn_complete(el, NULL, NULL,
+	    break_chars, NULL, NULL, 100,
+	    NULL, NULL, NULL, NULL,
+	    sh_find_word_start, sh_dequote, sh_quote);
+}

src/filecomplete.h

@@ -0,0 +1,47 @@
+/*	$NetBSD: filecomplete.h,v 1.9 2009/12/30 22:37:40 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1997 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jaromir Dolecek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _FILECOMPLETE_H_
+#define _FILECOMPLETE_H_
+
+int fn_complete(EditLine *,
+    char *(*)(const char *, int),
+    char **(*)(const char *, int, int),
+    const Char *, const Char *, const char *(*)(const char *), size_t,
+    int *, int *, int *, int *,
+    const Char *(*)(const Char *, const Char *),
+    char *(*)(const char *),
+    char *(*)(const char *));
+
+void fn_display_match_list(EditLine *, char **, size_t, size_t);
+char *fn_tilde_expand(const char *);
+char *fn_filename_completion_function(const char *, int);
+
+#endif

src/hist.c

@@ -0,0 +1,223 @@
+/*	$NetBSD: hist.c,v 1.20 2011/07/29 15:16:33 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#if !defined(lint) && !defined(SCCSID)
+#if 0
+static char sccsid[] = "@(#)hist.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: hist.c,v 1.20 2011/07/29 15:16:33 christos Exp $");
+#endif
+#endif /* not lint && not SCCSID */
+
+/*
+ * hist.c: History access functions
+ */
+#include <stdlib.h>
+#include "el.h"
+
+/* hist_init():
+ *	Initialization function.
+ */
+protected int
+hist_init(EditLine *el)
+{
+
+	el->el_history.fun = NULL;
+	el->el_history.ref = NULL;
+	el->el_history.buf = el_malloc(EL_BUFSIZ * sizeof(*el->el_history.buf));
+	el->el_history.sz  = EL_BUFSIZ;
+	if (el->el_history.buf == NULL)
+		return -1;
+	el->el_history.last = el->el_history.buf;
+	return 0;
+}
+
+
+/* hist_end():
+ *	clean up history;
+ */
+protected void
+hist_end(EditLine *el)
+{
+
+	el_free(el->el_history.buf);
+	el->el_history.buf = NULL;
+}
+
+
+/* hist_set():
+ *	Set new history interface
+ */
+protected int
+hist_set(EditLine *el, hist_fun_t fun, void *ptr)
+{
+
+	el->el_history.ref = ptr;
+	el->el_history.fun = fun;
+	return 0;
+}
+
+
+/* hist_get():
+ *	Get a history line and update it in the buffer.
+ *	eventno tells us the event to get.
+ */
+protected el_action_t
+hist_get(EditLine *el)
+{
+	const Char *hp;
+	int h;
+
+	if (el->el_history.eventno == 0) {	/* if really the current line */
+		(void) Strncpy(el->el_line.buffer, el->el_history.buf,
+		    el->el_history.sz);
+		el->el_line.lastchar = el->el_line.buffer +
+		    (el->el_history.last - el->el_history.buf);
+
+#ifdef KSHVI
+		if (el->el_map.type == MAP_VI)
+			el->el_line.cursor = el->el_line.buffer;
+		else
+#endif /* KSHVI */
+			el->el_line.cursor = el->el_line.lastchar;
+
+		return CC_REFRESH;
+	}
+	if (el->el_history.ref == NULL)
+		return CC_ERROR;
+
+	hp = HIST_FIRST(el);
+
+	if (hp == NULL)
+		return CC_ERROR;
+
+	for (h = 1; h < el->el_history.eventno; h++)
+		if ((hp = HIST_NEXT(el)) == NULL) {
+			el->el_history.eventno = h;
+			return CC_ERROR;
+		}
+	(void) Strncpy(el->el_line.buffer, hp,
+			(size_t)(el->el_line.limit - el->el_line.buffer));
+	el->el_line.buffer[el->el_line.limit - el->el_line.buffer - 1] = '\0';
+	el->el_line.lastchar = el->el_line.buffer + Strlen(el->el_line.buffer);
+
+	if (el->el_line.lastchar > el->el_line.buffer
+	    && el->el_line.lastchar[-1] == '\n')
+		el->el_line.lastchar--;
+	if (el->el_line.lastchar > el->el_line.buffer
+	    && el->el_line.lastchar[-1] == ' ')
+		el->el_line.lastchar--;
+#ifdef KSHVI
+	if (el->el_map.type == MAP_VI)
+		el->el_line.cursor = el->el_line.buffer;
+	else
+#endif /* KSHVI */
+		el->el_line.cursor = el->el_line.lastchar;
+
+	return CC_REFRESH;
+}
+
+
+/* hist_command()
+ *	process a history command
+ */
+protected int
+hist_command(EditLine *el, int argc, const Char **argv)
+{
+	const Char *str;
+	int num;
+	TYPE(HistEvent) ev;
+
+	if (el->el_history.ref == NULL)
+		return -1;
+
+	if (argc == 1 || Strcmp(argv[1], STR("list")) == 0) {
+		 /* List history entries */
+
+		for (str = HIST_LAST(el); str != NULL; str = HIST_PREV(el))
+			(void) fprintf(el->el_outfile, "%d %s",
+			    el->el_history.ev.num, ct_encode_string(str, &el->el_scratch));
+		return 0;
+	}
+
+	if (argc != 3)
+		return -1;
+
+	num = (int)Strtol(argv[2], NULL, 0);
+
+	if (Strcmp(argv[1], STR("size")) == 0)
+		return FUNW(history)(el->el_history.ref, &ev, H_SETSIZE, num);
+
+	if (Strcmp(argv[1], STR("unique")) == 0)
+		return FUNW(history)(el->el_history.ref, &ev, H_SETUNIQUE, num);
+
+	return -1;
+}
+
+/* hist_enlargebuf()
+ *	Enlarge history buffer to specified value. Called from el_enlargebufs().
+ *	Return 0 for failure, 1 for success.
+ */
+protected int
+/*ARGSUSED*/
+hist_enlargebuf(EditLine *el, size_t oldsz, size_t newsz)
+{
+	Char *newbuf;
+
+	newbuf = el_realloc(el->el_history.buf, newsz * sizeof(*newbuf));
+	if (!newbuf)
+		return 0;
+
+	(void) memset(&newbuf[oldsz], '\0', (newsz - oldsz) * sizeof(*newbuf));
+
+	el->el_history.last = newbuf +
+				(el->el_history.last - el->el_history.buf);
+	el->el_history.buf = newbuf;
+	el->el_history.sz  = newsz;
+
+	return 1;
+}
+
+#ifdef WIDECHAR
+protected wchar_t *
+hist_convert(EditLine *el, int fn, void *arg)
+{
+	HistEventW ev;
+	if ((*(el)->el_history.fun)((el)->el_history.ref, &ev, fn, arg) == -1)
+		return NULL;
+	return ct_decode_string((const char *)(const void *)ev.str,
+	    &el->el_scratch);
+}
+#endif

src/hist.h

@@ -0,0 +1,87 @@
+/*	$NetBSD: hist.h,v 1.13 2011/07/28 20:50:55 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)hist.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.hist.c: History functions
+ */
+#ifndef _h_el_hist
+#define	_h_el_hist
+
+#include "histedit.h"
+
+typedef int (*hist_fun_t)(void *, TYPE(HistEvent) *, int, ...);
+
+typedef struct el_history_t {
+	Char		*buf;		/* The history buffer		*/
+	size_t		sz;		/* Size of history buffer	*/
+	Char		*last;		/* The last character		*/
+	int		 eventno;	/* Event we are looking for	*/
+	void *		 ref;		/* Argument for history fcns	*/
+	hist_fun_t	 fun;		/* Event access			*/
+	TYPE(HistEvent)	 ev;		/* Event cookie			*/
+} el_history_t;
+
+#define	HIST_FUN_INTERNAL(el, fn, arg)	\
+    ((((*(el)->el_history.fun) ((el)->el_history.ref, &(el)->el_history.ev, \
+	fn, arg)) == -1) ? NULL : (el)->el_history.ev.str)
+#ifdef WIDECHAR
+#define HIST_FUN(el, fn, arg) \
+    (((el)->el_flags & NARROW_HISTORY) ? hist_convert(el, fn, arg) : \
+	HIST_FUN_INTERNAL(el, fn, arg))
+#else
+#define HIST_FUN(el, fn, arg) HIST_FUN_INTERNAL(el, fn, arg)
+#endif
+
+
+#define	HIST_NEXT(el)		HIST_FUN(el, H_NEXT, NULL)
+#define	HIST_FIRST(el)		HIST_FUN(el, H_FIRST, NULL)
+#define	HIST_LAST(el)		HIST_FUN(el, H_LAST, NULL)
+#define	HIST_PREV(el)		HIST_FUN(el, H_PREV, NULL)
+#define	HIST_SET(el, num)	HIST_FUN(el, H_SET, num)
+#define	HIST_LOAD(el, fname)	HIST_FUN(el, H_LOAD fname)
+#define	HIST_SAVE(el, fname)	HIST_FUN(el, H_SAVE fname)
+
+protected int		hist_init(EditLine *);
+protected void		hist_end(EditLine *);
+protected el_action_t	hist_get(EditLine *);
+protected int		hist_set(EditLine *, hist_fun_t, void *);
+protected int		hist_command(EditLine *, int, const Char **);
+protected int		hist_enlargebuf(EditLine *, size_t, size_t);
+#ifdef WIDECHAR
+protected wchar_t 	*hist_convert(EditLine *, int, void *);
+#endif
+
+#endif /* _h_el_hist */

src/histedit.h

@@ -0,0 +1,318 @@
+/*	$NetBSD: histedit.h,v 1.49 2012/05/31 13:16:39 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)histedit.h	8.2 (Berkeley) 1/3/94
+ */
+
+/*
+ * histedit.h: Line editor and history interface.
+ */
+#ifndef _HISTEDIT_H_
+#define	_HISTEDIT_H_
+
+#define	LIBEDIT_MAJOR 2
+#define	LIBEDIT_MINOR 11
+
+#include <sys/types.h>
+#include <stdio.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * ==== Editing ====
+ */
+
+typedef struct editline EditLine;
+
+/*
+ * For user-defined function interface
+ */
+typedef struct lineinfo {
+	const char	*buffer;
+	const char	*cursor;
+	const char	*lastchar;
+} LineInfo;
+
+/*
+ * EditLine editor function return codes.
+ * For user-defined function interface
+ */
+#define	CC_NORM		0
+#define	CC_NEWLINE	1
+#define	CC_EOF		2
+#define	CC_ARGHACK	3
+#define	CC_REFRESH	4
+#define	CC_CURSOR	5
+#define	CC_ERROR	6
+#define	CC_FATAL	7
+#define	CC_REDISPLAY	8
+#define	CC_REFRESH_BEEP	9
+
+/*
+ * Initialization, cleanup, and resetting
+ */
+EditLine	*el_init(const char *, FILE *, FILE *, FILE *);
+void		 el_end(EditLine *);
+void		 el_reset(EditLine *);
+
+/*
+ * Get a line, a character or push a string back in the input queue
+ */
+const char	*el_gets(EditLine *, int *);
+int		 el_getc(EditLine *, char *);
+void		 el_push(EditLine *, const char *);
+
+/*
+ * Beep!
+ */
+void		 el_beep(EditLine *);
+
+/*
+ * High level function internals control
+ * Parses argc, argv array and executes builtin editline commands
+ */
+int		 el_parse(EditLine *, int, const char **);
+
+/*
+ * Low level editline access functions
+ */
+int		 el_set(EditLine *, int, ...);
+int		 el_get(EditLine *, int, ...);
+unsigned char	_el_fn_complete(EditLine *, int);
+unsigned char	_el_fn_sh_complete(EditLine *, int);
+
+/*
+ * el_set/el_get parameters
+ *
+ * When using el_wset/el_wget (as opposed to el_set/el_get):
+ *   Char is wchar_t, otherwise it is char.
+ *   prompt_func is el_wpfunc_t, otherwise it is el_pfunc_t .
+
+ * Prompt function prototypes are:
+ *   typedef char    *(*el_pfunct_t)  (EditLine *);
+ *   typedef wchar_t *(*el_wpfunct_t) (EditLine *);
+ *
+ * For operations that support set or set/get, the argument types listed are for
+ * the "set" operation. For "get", each listed type must be a pointer.
+ * E.g. EL_EDITMODE takes an int when set, but an int* when get.
+ * 
+ * Operations that only support "get" have the correct argument types listed.
+ */
+#define	EL_PROMPT	0	/* , prompt_func);		      set/get */
+#define	EL_TERMINAL	1	/* , const char *);		      set/get */
+#define	EL_EDITOR	2	/* , const Char *);		      set/get */
+#define	EL_SIGNAL	3	/* , int);			      set/get */
+#define	EL_BIND		4	/* , const Char *, ..., NULL);	      set     */
+#define	EL_TELLTC	5	/* , const Char *, ..., NULL);	      set     */
+#define	EL_SETTC	6	/* , const Char *, ..., NULL);	      set     */
+#define	EL_ECHOTC	7	/* , const Char *, ..., NULL);        set     */
+#define	EL_SETTY	8	/* , const Char *, ..., NULL);        set     */
+#define	EL_ADDFN	9	/* , const Char *, const Char,        set     */
+				/*   el_func_t);		 	      */
+#define	EL_HIST		10	/* , hist_fun_t, const void *);	      set     */
+#define	EL_EDITMODE	11	/* , int);			      set/get */
+#define	EL_RPROMPT	12	/* , prompt_func);		      set/get */
+#define	EL_GETCFN	13	/* , el_rfunc_t);		      set/get */
+#define	EL_CLIENTDATA	14	/* , void *);			      set/get */
+#define	EL_UNBUFFERED	15	/* , int);			      set/get */
+#define	EL_PREP_TERM	16	/* , int);			      set     */
+#define	EL_GETTC	17	/* , const Char *, ..., NULL);		  get */
+#define	EL_GETFP	18	/* , int, FILE **);		          get */
+#define	EL_SETFP	19	/* , int, FILE *);		      set     */
+#define	EL_REFRESH	20	/* , void);			      set     */
+#define	EL_PROMPT_ESC	21	/* , prompt_func, Char);	      set/get */
+#define	EL_RPROMPT_ESC	22	/* , prompt_func, Char);	      set/get */
+#define	EL_RESIZE	23	/* , el_zfunc_t, void *);	      set     */
+
+#define	EL_BUILTIN_GETCFN	(NULL)
+
+/*
+ * Source named file or $PWD/.editrc or $HOME/.editrc
+ */
+int		el_source(EditLine *, const char *);
+
+/*
+ * Must be called when the terminal changes size; If EL_SIGNAL
+ * is set this is done automatically otherwise it is the responsibility
+ * of the application
+ */
+void		 el_resize(EditLine *);
+
+/*
+ * User-defined function interface.
+ */
+const LineInfo	*el_line(EditLine *);
+int		 el_insertstr(EditLine *, const char *);
+void		 el_deletestr(EditLine *, int);
+
+
+/*
+ * ==== History ====
+ */
+
+typedef struct history History;
+
+typedef struct HistEvent {
+	int		 num;
+	const char	*str;
+} HistEvent;
+
+/*
+ * History access functions.
+ */
+History *	history_init(void);
+void		history_end(History *);
+
+int		history(History *, HistEvent *, int, ...);
+
+#define	H_FUNC		 0	/* , UTSL		*/
+#define	H_SETSIZE	 1	/* , const int);	*/
+#define	H_GETSIZE	 2	/* , void);		*/
+#define	H_FIRST		 3	/* , void);		*/
+#define	H_LAST		 4	/* , void);		*/
+#define	H_PREV		 5	/* , void);		*/
+#define	H_NEXT		 6	/* , void);		*/
+#define	H_CURR		 8	/* , void);		*/
+#define	H_SET		 7	/* , int);		*/
+#define	H_ADD		 9	/* , const wchar_t *);	*/
+#define	H_ENTER		10	/* , const wchar_t *);	*/
+#define	H_APPEND	11	/* , const wchar_t *);	*/
+#define	H_END		12	/* , void);		*/
+#define	H_NEXT_STR	13	/* , const wchar_t *);	*/
+#define	H_PREV_STR	14	/* , const wchar_t *);	*/
+#define	H_NEXT_EVENT	15	/* , const int);	*/
+#define	H_PREV_EVENT	16	/* , const int);	*/
+#define	H_LOAD		17	/* , const char *);	*/
+#define	H_SAVE		18	/* , const char *);	*/
+#define	H_CLEAR		19	/* , void);		*/
+#define	H_SETUNIQUE	20	/* , int);		*/
+#define	H_GETUNIQUE	21	/* , void);		*/
+#define	H_DEL		22	/* , int);		*/
+#define	H_NEXT_EVDATA	23	/* , const int, histdata_t *);	*/
+#define	H_DELDATA	24	/* , int, histdata_t *);*/
+#define	H_REPLACE	25	/* , const char *, histdata_t);	*/
+
+
+
+/*
+ * ==== Tokenization ====
+ */
+
+typedef struct tokenizer Tokenizer;
+
+/*
+ * String tokenization functions, using simplified sh(1) quoting rules
+ */
+Tokenizer	*tok_init(const char *);
+void		 tok_end(Tokenizer *);
+void		 tok_reset(Tokenizer *);
+int		 tok_line(Tokenizer *, const LineInfo *,
+		    int *, const char ***, int *, int *);
+int		 tok_str(Tokenizer *, const char *,
+		    int *, const char ***);
+
+/*
+ * Begin Wide Character Support
+ */
+#ifdef __linux__
+/* Apparently we need _GNU_SOURCE defined to get access to wcsdup on Linux */
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#endif
+
+#include <wchar.h>
+#include <wctype.h>
+
+/*
+ * Wide character versions
+ */
+
+/*
+ * ==== Editing ====
+ */
+typedef struct lineinfow {
+	const wchar_t	*buffer;
+	const wchar_t	*cursor;
+	const wchar_t	*lastchar;
+} LineInfoW;
+
+const wchar_t	*el_wgets(EditLine *, int *);
+int		 el_wgetc(EditLine *, wchar_t *);
+void		 el_wpush(EditLine *, const wchar_t *);
+
+int		 el_wparse(EditLine *, int, const wchar_t **);
+
+int		 el_wset(EditLine *, int, ...);
+int		 el_wget(EditLine *, int, ...);
+
+const LineInfoW	*el_wline(EditLine *);
+int		 el_winsertstr(EditLine *, const wchar_t *);
+#define          el_wdeletestr  el_deletestr
+
+/*
+ * ==== History ====
+ */
+typedef struct histeventW {
+	int		 num;
+	const wchar_t	*str;
+} HistEventW;
+
+typedef struct historyW HistoryW;
+
+HistoryW *	history_winit(void);
+void		history_wend(HistoryW *);
+
+int		history_w(HistoryW *, HistEventW *, int, ...);
+
+/*
+ * ==== Tokenization ====
+ */
+typedef struct tokenizerW TokenizerW;
+
+/* Wide character tokenizer support */
+TokenizerW	*tok_winit(const wchar_t *);
+void		 tok_wend(TokenizerW *);
+void		 tok_wreset(TokenizerW *);
+int		 tok_wline(TokenizerW *, const LineInfoW *,
+		    int *, const wchar_t ***, int *, int *);
+int		 tok_wstr(TokenizerW *, const wchar_t *,
+		    int *, const wchar_t ***);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _HISTEDIT_H_ */

src/keymacro.c

@@ -0,0 +1,671 @@
+/*	$NetBSD: keymacro.c,v 1.7 2011/08/16 16:25:15 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#if !defined(lint) && !defined(SCCSID)
+#if 0
+static char sccsid[] = "@(#)key.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: keymacro.c,v 1.7 2011/08/16 16:25:15 christos Exp $");
+#endif
+#endif /* not lint && not SCCSID */
+
+/*
+ * keymacro.c: This module contains the procedures for maintaining
+ *	       the extended-key map.
+ *
+ *      An extended-key (key) is a sequence of keystrokes introduced
+ *	with a sequence introducer and consisting of an arbitrary
+ *	number of characters.  This module maintains a map (the
+ *	el->el_keymacro.map)
+ *	to convert these extended-key sequences into input strs
+ *	(XK_STR), editor functions (XK_CMD), or unix commands (XK_EXE).
+ *
+ *      Warning:
+ *	  If key is a substr of some other keys, then the longer
+ *	  keys are lost!!  That is, if the keys "abcd" and "abcef"
+ *	  are in el->el_keymacro.map, adding the key "abc" will cause
+ *	  the first two definitions to be lost.
+ *
+ *      Restrictions:
+ *      -------------
+ *      1) It is not possible to have one key that is a
+ *	   substr of another.
+ */
+#include <string.h>
+#include <stdlib.h>
+
+#include "el.h"
+
+/*
+ * The Nodes of the el->el_keymacro.map.  The el->el_keymacro.map is a
+ * linked list of these node elements
+ */
+struct keymacro_node_t {
+	Char		 ch;		/* single character of key 	 */
+	int		 type;		/* node type			 */
+	keymacro_value_t val;		/* command code or pointer to str,  */
+					/* if this is a leaf 		 */
+	struct keymacro_node_t *next;	/* ptr to next char of this key  */
+	struct keymacro_node_t *sibling;/* ptr to another key with same prefix*/
+};
+
+private int		 node_trav(EditLine *, keymacro_node_t *, Char *,
+    keymacro_value_t *);
+private int		 node__try(EditLine *, keymacro_node_t *, const Char *,
+    keymacro_value_t *, int);
+private keymacro_node_t	*node__get(Int);
+private void		 node__free(keymacro_node_t *);
+private void		 node__put(EditLine *, keymacro_node_t *);
+private int		 node__delete(EditLine *, keymacro_node_t **,
+    const Char *);
+private int		 node_lookup(EditLine *, const Char *,
+    keymacro_node_t *, size_t);
+private int		 node_enum(EditLine *, keymacro_node_t *, size_t);
+
+#define	KEY_BUFSIZ	EL_BUFSIZ
+
+
+/* keymacro_init():
+ *	Initialize the key maps
+ */
+protected int
+keymacro_init(EditLine *el)
+{
+
+	el->el_keymacro.buf = el_malloc(KEY_BUFSIZ *
+	    sizeof(*el->el_keymacro.buf));
+	if (el->el_keymacro.buf == NULL)
+		return -1;
+	el->el_keymacro.map = NULL;
+	keymacro_reset(el);
+	return 0;
+}
+
+/* keymacro_end():
+ *	Free the key maps
+ */
+protected void
+keymacro_end(EditLine *el)
+{
+
+	el_free(el->el_keymacro.buf);
+	el->el_keymacro.buf = NULL;
+	node__free(el->el_keymacro.map);
+}
+
+
+/* keymacro_map_cmd():
+ *	Associate cmd with a key value
+ */
+protected keymacro_value_t *
+keymacro_map_cmd(EditLine *el, int cmd)
+{
+
+	el->el_keymacro.val.cmd = (el_action_t) cmd;
+	return &el->el_keymacro.val;
+}
+
+
+/* keymacro_map_str():
+ *	Associate str with a key value
+ */
+protected keymacro_value_t *
+keymacro_map_str(EditLine *el, Char *str)
+{
+
+	el->el_keymacro.val.str = str;
+	return &el->el_keymacro.val;
+}
+
+
+/* keymacro_reset():
+ *	Takes all nodes on el->el_keymacro.map and puts them on free list.
+ *	Then initializes el->el_keymacro.map with arrow keys
+ *	[Always bind the ansi arrow keys?]
+ */
+protected void
+keymacro_reset(EditLine *el)
+{
+
+	node__put(el, el->el_keymacro.map);
+	el->el_keymacro.map = NULL;
+	return;
+}
+
+
+/* keymacro_get():
+ *	Calls the recursive function with entry point el->el_keymacro.map
+ *      Looks up *ch in map and then reads characters until a
+ *      complete match is found or a mismatch occurs. Returns the
+ *      type of the match found (XK_STR, XK_CMD, or XK_EXE).
+ *      Returns NULL in val.str and XK_STR for no match.
+ *      The last character read is returned in *ch.
+ */
+protected int
+keymacro_get(EditLine *el, Char *ch, keymacro_value_t *val)
+{
+
+	return node_trav(el, el->el_keymacro.map, ch, val);
+}
+
+
+/* keymacro_add():
+ *      Adds key to the el->el_keymacro.map and associates the value in
+ *	val with it. If key is already is in el->el_keymacro.map, the new
+ *	code is applied to the existing key. Ntype specifies if code is a
+ *	command, an out str or a unix command.
+ */
+protected void
+keymacro_add(EditLine *el, const Char *key, keymacro_value_t *val, int ntype)
+{
+
+	if (key[0] == '\0') {
+		(void) fprintf(el->el_errfile,
+		    "keymacro_add: Null extended-key not allowed.\n");
+		return;
+	}
+	if (ntype == XK_CMD && val->cmd == ED_SEQUENCE_LEAD_IN) {
+		(void) fprintf(el->el_errfile,
+		    "keymacro_add: sequence-lead-in command not allowed\n");
+		return;
+	}
+	if (el->el_keymacro.map == NULL)
+		/* tree is initially empty.  Set up new node to match key[0] */
+		el->el_keymacro.map = node__get(key[0]);
+			/* it is properly initialized */
+
+	/* Now recurse through el->el_keymacro.map */
+	(void) node__try(el, el->el_keymacro.map, key, val, ntype);
+	return;
+}
+
+
+/* keymacro_clear():
+ *
+ */
+protected void
+keymacro_clear(EditLine *el, el_action_t *map, const Char *in)
+{
+#ifdef WIDECHAR
+        if (*in > N_KEYS) /* can't be in the map */
+                return;
+#endif
+	if ((map[(unsigned char)*in] == ED_SEQUENCE_LEAD_IN) &&
+	    ((map == el->el_map.key &&
+	    el->el_map.alt[(unsigned char)*in] != ED_SEQUENCE_LEAD_IN) ||
+	    (map == el->el_map.alt &&
+	    el->el_map.key[(unsigned char)*in] != ED_SEQUENCE_LEAD_IN)))
+		(void) keymacro_delete(el, in);
+}
+
+
+/* keymacro_delete():
+ *      Delete the key and all longer keys staring with key, if
+ *      they exists.
+ */
+protected int
+keymacro_delete(EditLine *el, const Char *key)
+{
+
+	if (key[0] == '\0') {
+		(void) fprintf(el->el_errfile,
+		    "keymacro_delete: Null extended-key not allowed.\n");
+		return -1;
+	}
+	if (el->el_keymacro.map == NULL)
+		return 0;
+
+	(void) node__delete(el, &el->el_keymacro.map, key);
+	return 0;
+}
+
+
+/* keymacro_print():
+ *	Print the binding associated with key key.
+ *	Print entire el->el_keymacro.map if null
+ */
+protected void
+keymacro_print(EditLine *el, const Char *key)
+{
+
+	/* do nothing if el->el_keymacro.map is empty and null key specified */
+	if (el->el_keymacro.map == NULL && *key == 0)
+		return;
+
+	el->el_keymacro.buf[0] = '"';
+	if (node_lookup(el, key, el->el_keymacro.map, (size_t)1) <= -1)
+		/* key is not bound */
+		(void) fprintf(el->el_errfile, "Unbound extended key \"" FSTR
+		    "\"\n", key);
+	return;
+}
+
+
+/* node_trav():
+ *	recursively traverses node in tree until match or mismatch is
+ * 	found.  May read in more characters.
+ */
+private int
+node_trav(EditLine *el, keymacro_node_t *ptr, Char *ch, keymacro_value_t *val)
+{
+
+	if (ptr->ch == *ch) {
+		/* match found */
+		if (ptr->next) {
+			/* key not complete so get next char */
+			if (FUN(el,getc)(el, ch) != 1) {/* if EOF or error */
+				val->cmd = ED_END_OF_FILE;
+				return XK_CMD;
+				/* PWP: Pretend we just read an end-of-file */
+			}
+			return node_trav(el, ptr->next, ch, val);
+		} else {
+			*val = ptr->val;
+			if (ptr->type != XK_CMD)
+				*ch = '\0';
+			return ptr->type;
+		}
+	} else {
+		/* no match found here */
+		if (ptr->sibling) {
+			/* try next sibling */
+			return node_trav(el, ptr->sibling, ch, val);
+		} else {
+			/* no next sibling -- mismatch */
+			val->str = NULL;
+			return XK_STR;
+		}
+	}
+}
+
+
+/* node__try():
+ * 	Find a node that matches *str or allocate a new one
+ */
+private int
+node__try(EditLine *el, keymacro_node_t *ptr, const Char *str,
+    keymacro_value_t *val, int ntype)
+{
+
+	if (ptr->ch != *str) {
+		keymacro_node_t *xm;
+
+		for (xm = ptr; xm->sibling != NULL; xm = xm->sibling)
+			if (xm->sibling->ch == *str)
+				break;
+		if (xm->sibling == NULL)
+			xm->sibling = node__get(*str);	/* setup new node */
+		ptr = xm->sibling;
+	}
+	if (*++str == '\0') {
+		/* we're there */
+		if (ptr->next != NULL) {
+			node__put(el, ptr->next);
+				/* lose longer keys with this prefix */
+			ptr->next = NULL;
+		}
+		switch (ptr->type) {
+		case XK_CMD:
+		case XK_NOD:
+			break;
+		case XK_STR:
+		case XK_EXE:
+			if (ptr->val.str)
+				el_free(ptr->val.str);
+			break;
+		default:
+			EL_ABORT((el->el_errfile, "Bad XK_ type %d\n",
+			    ptr->type));
+			break;
+		}
+
+		switch (ptr->type = ntype) {
+		case XK_CMD:
+			ptr->val = *val;
+			break;
+		case XK_STR:
+		case XK_EXE:
+			if ((ptr->val.str = Strdup(val->str)) == NULL)
+				return -1;
+			break;
+		default:
+			EL_ABORT((el->el_errfile, "Bad XK_ type %d\n", ntype));
+			break;
+		}
+	} else {
+		/* still more chars to go */
+		if (ptr->next == NULL)
+			ptr->next = node__get(*str);	/* setup new node */
+		(void) node__try(el, ptr->next, str, val, ntype);
+	}
+	return 0;
+}
+
+
+/* node__delete():
+ *	Delete node that matches str
+ */
+private int
+node__delete(EditLine *el, keymacro_node_t **inptr, const Char *str)
+{
+	keymacro_node_t *ptr;
+	keymacro_node_t *prev_ptr = NULL;
+
+	ptr = *inptr;
+
+	if (ptr->ch != *str) {
+		keymacro_node_t *xm;
+
+		for (xm = ptr; xm->sibling != NULL; xm = xm->sibling)
+			if (xm->sibling->ch == *str)
+				break;
+		if (xm->sibling == NULL)
+			return 0;
+		prev_ptr = xm;
+		ptr = xm->sibling;
+	}
+	if (*++str == '\0') {
+		/* we're there */
+		if (prev_ptr == NULL)
+			*inptr = ptr->sibling;
+		else
+			prev_ptr->sibling = ptr->sibling;
+		ptr->sibling = NULL;
+		node__put(el, ptr);
+		return 1;
+	} else if (ptr->next != NULL &&
+	    node__delete(el, &ptr->next, str) == 1) {
+		if (ptr->next != NULL)
+			return 0;
+		if (prev_ptr == NULL)
+			*inptr = ptr->sibling;
+		else
+			prev_ptr->sibling = ptr->sibling;
+		ptr->sibling = NULL;
+		node__put(el, ptr);
+		return 1;
+	} else {
+		return 0;
+	}
+}
+
+
+/* node__put():
+ *	Puts a tree of nodes onto free list using free(3).
+ */
+private void
+node__put(EditLine *el, keymacro_node_t *ptr)
+{
+	if (ptr == NULL)
+		return;
+
+	if (ptr->next != NULL) {
+		node__put(el, ptr->next);
+		ptr->next = NULL;
+	}
+	node__put(el, ptr->sibling);
+
+	switch (ptr->type) {
+	case XK_CMD:
+	case XK_NOD:
+		break;
+	case XK_EXE:
+	case XK_STR:
+		if (ptr->val.str != NULL)
+			el_free(ptr->val.str);
+		break;
+	default:
+		EL_ABORT((el->el_errfile, "Bad XK_ type %d\n", ptr->type));
+		break;
+	}
+	el_free(ptr);
+}
+
+
+/* node__get():
+ *	Returns pointer to a keymacro_node_t for ch.
+ */
+private keymacro_node_t *
+node__get(Int ch)
+{
+	keymacro_node_t *ptr;
+
+	ptr = el_malloc(sizeof(*ptr));
+	if (ptr == NULL)
+		return NULL;
+	ptr->ch = ch;
+	ptr->type = XK_NOD;
+	ptr->val.str = NULL;
+	ptr->next = NULL;
+	ptr->sibling = NULL;
+	return ptr;
+}
+
+private void
+node__free(keymacro_node_t *k)
+{
+	if (k == NULL)
+		return;
+	node__free(k->sibling);
+	node__free(k->next);
+	el_free(k);
+}
+
+/* node_lookup():
+ *	look for the str starting at node ptr.
+ *	Print if last node
+ */
+private int
+node_lookup(EditLine *el, const Char *str, keymacro_node_t *ptr, size_t cnt)
+{
+	ssize_t used;
+
+	if (ptr == NULL)
+		return -1;	/* cannot have null ptr */
+
+	if (!str || *str == 0) {
+		/* no more chars in str.  node_enum from here. */
+		(void) node_enum(el, ptr, cnt);
+		return 0;
+	} else {
+		/* If match put this char into el->el_keymacro.buf.  Recurse */
+		if (ptr->ch == *str) {
+			/* match found */
+			used = ct_visual_char(el->el_keymacro.buf + cnt,
+			    KEY_BUFSIZ - cnt, ptr->ch);
+			if (used == -1)
+				return -1; /* ran out of buffer space */
+			if (ptr->next != NULL)
+				/* not yet at leaf */
+				return (node_lookup(el, str + 1, ptr->next,
+				    (size_t)used + cnt));
+			else {
+			    /* next node is null so key should be complete */
+				if (str[1] == 0) {
+					size_t px = cnt + (size_t)used;
+					el->el_keymacro.buf[px] = '"';
+					el->el_keymacro.buf[px + 1] = '\0';
+					keymacro_kprint(el, el->el_keymacro.buf,
+					    &ptr->val, ptr->type);
+					return 0;
+				} else
+					return -1;
+					/* mismatch -- str still has chars */
+			}
+		} else {
+			/* no match found try sibling */
+			if (ptr->sibling)
+				return (node_lookup(el, str, ptr->sibling,
+				    cnt));
+			else
+				return -1;
+		}
+	}
+}
+
+
+/* node_enum():
+ *	Traverse the node printing the characters it is bound in buffer
+ */
+private int
+node_enum(EditLine *el, keymacro_node_t *ptr, size_t cnt)
+{
+        ssize_t used;
+
+	if (cnt >= KEY_BUFSIZ - 5) {	/* buffer too small */
+		el->el_keymacro.buf[++cnt] = '"';
+		el->el_keymacro.buf[++cnt] = '\0';
+		(void) fprintf(el->el_errfile,
+		    "Some extended keys too long for internal print buffer");
+		(void) fprintf(el->el_errfile, " \"" FSTR "...\"\n",
+		    el->el_keymacro.buf);
+		return 0;
+	}
+	if (ptr == NULL) {
+#ifdef DEBUG_EDIT
+		(void) fprintf(el->el_errfile,
+		    "node_enum: BUG!! Null ptr passed\n!");
+#endif
+		return -1;
+	}
+	/* put this char at end of str */
+        used = ct_visual_char(el->el_keymacro.buf + cnt, KEY_BUFSIZ - cnt,
+	    ptr->ch);
+	if (ptr->next == NULL) {
+		/* print this key and function */
+		el->el_keymacro.buf[cnt + (size_t)used   ] = '"';
+		el->el_keymacro.buf[cnt + (size_t)used + 1] = '\0';
+		keymacro_kprint(el, el->el_keymacro.buf, &ptr->val, ptr->type);
+	} else
+		(void) node_enum(el, ptr->next, cnt + (size_t)used);
+
+	/* go to sibling if there is one */
+	if (ptr->sibling)
+		(void) node_enum(el, ptr->sibling, cnt);
+	return 0;
+}
+
+
+/* keymacro_kprint():
+ *	Print the specified key and its associated
+ *	function specified by val
+ */
+protected void
+keymacro_kprint(EditLine *el, const Char *key, keymacro_value_t *val, int ntype)
+{
+	el_bindings_t *fp;
+	char unparsbuf[EL_BUFSIZ];
+	static const char fmt[] = "%-15s->  %s\n";
+
+	if (val != NULL)
+		switch (ntype) {
+		case XK_STR:
+		case XK_EXE:
+			(void) keymacro__decode_str(val->str, unparsbuf,
+			    sizeof(unparsbuf), 
+			    ntype == XK_STR ? "\"\"" : "[]");
+			(void) fprintf(el->el_outfile, fmt,
+			    ct_encode_string(key, &el->el_scratch), unparsbuf);
+			break;
+		case XK_CMD:
+			for (fp = el->el_map.help; fp->name; fp++)
+				if (val->cmd == fp->func) {
+                    ct_wcstombs(unparsbuf, fp->name, sizeof(unparsbuf));
+                    unparsbuf[sizeof(unparsbuf) -1] = '\0';
+					(void) fprintf(el->el_outfile, fmt,
+                        ct_encode_string(key, &el->el_scratch), unparsbuf);
+					break;
+				}
+#ifdef DEBUG_KEY
+			if (fp->name == NULL)
+				(void) fprintf(el->el_outfile,
+				    "BUG! Command not found.\n");
+#endif
+
+			break;
+		default:
+			EL_ABORT((el->el_errfile, "Bad XK_ type %d\n", ntype));
+			break;
+		}
+	else
+		(void) fprintf(el->el_outfile, fmt, ct_encode_string(key,
+		    &el->el_scratch), "no input");
+}
+
+
+#define ADDC(c) \
+	if (b < eb) \
+		*b++ = c; \
+	else \
+		b++
+/* keymacro__decode_str():
+ *	Make a printable version of the ey
+ */
+protected size_t
+keymacro__decode_str(const Char *str, char *buf, size_t len, const char *sep)
+{
+	char *b = buf, *eb = b + len;
+	const Char *p;
+
+	b = buf;
+	if (sep[0] != '\0') {
+		ADDC(sep[0]);
+	}
+	if (*str == '\0') {
+		ADDC('^');
+		ADDC('@');
+		goto add_endsep;
+	}
+	for (p = str; *p != 0; p++) {
+		Char dbuf[VISUAL_WIDTH_MAX];
+		Char *p2 = dbuf;
+		ssize_t l = ct_visual_char(dbuf, VISUAL_WIDTH_MAX, *p);
+		while (l-- > 0) {
+			ssize_t n = ct_encode_char(b, (size_t)(eb - b), *p2++);
+			if (n == -1) /* ran out of space */
+				goto add_endsep;
+			else
+				b += n;
+		}
+	}
+add_endsep:
+	if (sep[0] != '\0' && sep[1] != '\0') {
+		ADDC(sep[1]);
+	}
+	ADDC('\0');
+	if ((size_t)(b - buf) >= len)
+	    buf[len - 1] = '\0';
+	return (size_t)(b - buf);
+}

src/keymacro.h

@@ -0,0 +1,76 @@
+/*	$NetBSD: keymacro.h,v 1.2 2011/07/28 03:44:36 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)key.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.keymacro.h: Key macro header
+ */
+#ifndef _h_el_keymacro
+#define	_h_el_keymacro
+
+typedef union keymacro_value_t {
+	el_action_t	 cmd;	/* If it is a command the #	*/
+	Char		*str;	/* If it is a string...		*/
+} keymacro_value_t;
+
+typedef struct keymacro_node_t keymacro_node_t;
+
+typedef struct el_keymacromacro_t {
+	Char		*buf;	/* Key print buffer		*/
+	keymacro_node_t	*map;	/* Key map			*/
+	keymacro_value_t val;	/* Local conversion buffer	*/
+} el_keymacro_t;
+
+#define	XK_CMD	0
+#define	XK_STR	1
+#define	XK_NOD	2
+#define	XK_EXE	3
+
+protected int keymacro_init(EditLine *);
+protected void keymacro_end(EditLine *);
+protected keymacro_value_t *keymacro_map_cmd(EditLine *, int);
+protected keymacro_value_t *keymacro_map_str(EditLine *, Char *);
+protected void keymacro_reset(EditLine *);
+protected int keymacro_get(EditLine *, Char *, keymacro_value_t *);
+protected void keymacro_add(EditLine *, const Char *, keymacro_value_t *, int);
+protected void keymacro_clear(EditLine *, el_action_t *, const Char *);
+protected int keymacro_delete(EditLine *, const Char *);
+protected void keymacro_print(EditLine *, const Char *);
+protected void keymacro_kprint(EditLine *, const Char *, keymacro_value_t *,
+    int);
+protected size_t keymacro__decode_str(const Char *, char *, size_t,
+    const char *);
+
+#endif /* _h_el_keymacro */

src/makelist

@@ -0,0 +1,258 @@
+#!/bin/sh -
+#	$NetBSD: makelist,v 1.18 2012/03/21 05:34:54 matt Exp $
+#
+# Copyright (c) 1992, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# This code is derived from software contributed to Berkeley by
+# Christos Zoulas of Cornell University.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+#	@(#)makelist	5.3 (Berkeley) 6/4/93
+
+# makelist.sh: Automatically generate header files...
+
+USAGE="Usage: $0 -n|-h|-e|-fc|-fh|-bc|-bh|-m <filenames>"
+
+if [ "x$1" = "x" ]
+then
+    echo $USAGE 1>&2
+    exit 1
+fi
+
+FLAG="$1"
+shift
+
+FILES="$@"
+
+case $FLAG in
+
+#	generate foo.h file from foo.c
+#
+-n)
+    cat << _EOF
+#include "config.h"
+#undef WIDECHAR
+#define NARROWCHAR
+#include "${FILES}"
+_EOF
+    ;;
+    
+-h)
+    set - `echo $FILES | sed -e 's/\\./_/g'`
+    hdr="_h_`basename $1`"
+    cat $FILES | $AWK '
+	BEGIN {
+	    printf("/* Automatically generated file, do not edit */\n");
+	    printf("#ifndef %s\n#define %s\n", "'$hdr'", "'$hdr'");
+	}
+	/\(\):/ {
+	    pr = substr($2, 1, 2);
+	    if (pr == "vi" || pr == "em" || pr == "ed") {
+		name = substr($2, 1, length($2) - 3);
+#
+# XXX:	need a space between name and prototype so that -fc and -fh
+#	parsing is much easier
+#
+		printf("protected el_action_t\t%s (EditLine *, Int);\n", name);
+	    }
+	}
+	END {
+	    printf("#endif /* %s */\n", "'$hdr'");
+	}'
+	;;
+
+#	generate help.c from various .c files
+#
+-bc)
+    cat $FILES | $AWK '
+	BEGIN {
+	    printf("/* Automatically generated file, do not edit */\n");
+	    printf("#include \"config.h\"\n#include \"el.h\"\n");
+	    printf("#include \"chartype.h\"\n");
+	    printf("private const struct el_bindings_t el_func_help[] = {\n");
+	    low = "abcdefghijklmnopqrstuvwxyz_";
+	    high = "ABCDEFGHIJKLMNOPQRSTUVWXYZ_";
+	    for (i = 1; i <= length(low); i++)
+		tr[substr(low, i, 1)] = substr(high, i, 1);
+	}
+	/\(\):/ {
+	    pr = substr($2, 1, 2);
+	    if (pr == "vi" || pr == "em" || pr == "ed") {
+		name = substr($2, 1, length($2) - 3);
+		uname = "";
+		fname = "";
+		for (i = 1; i <= length(name); i++) {
+		    s = substr(name, i, 1);
+		    uname = uname tr[s];
+		    if (s == "_")
+			s = "-";
+		    fname = fname s;
+		}
+
+		printf("    { %-30.30s %-30.30s\n","STR(\"" fname "\"),", uname ",");
+		ok = 1;
+	    }
+	}
+	/^ \*/ {
+	    if (ok) {
+		printf("      STR(\"");
+		for (i = 2; i < NF; i++)
+		    printf("%s ", $i);
+		printf("%s\") },\n", $i);
+		ok = 0;
+	    }
+	}
+	END {
+	    printf("};\n");
+	    printf("\nprotected const el_bindings_t* help__get(void)");
+	    printf("{ return el_func_help; }\n");
+	}'
+	;;
+
+#	generate help.h from various .c files
+#
+-bh)
+    $AWK '
+	BEGIN {
+	    printf("/* Automatically generated file, do not edit */\n");
+	    printf("#ifndef _h_help_c\n#define _h_help_c\n");
+	    printf("protected const el_bindings_t *help__get(void);\n");
+	    printf("#endif /* _h_help_c */\n");
+	}' /dev/null
+	;;
+
+#	generate fcns.h from various .h files
+#
+-fh)
+    cat $FILES | $AWK '/el_action_t/ { print $3 }' | \
+    sort | tr '[a-z]' '[A-Z]' | $AWK '
+	BEGIN {
+	    printf("/* Automatically generated file, do not edit */\n");
+	    printf("#ifndef _h_fcns_c\n#define _h_fcns_c\n");
+	    count = 0;
+	}
+	{
+	    printf("#define\t%-30.30s\t%3d\n", $1, count++);
+	}
+	END {
+	    printf("#define\t%-30.30s\t%3d\n", "EL_NUM_FCNS", count);
+
+	    printf("typedef el_action_t (*el_func_t)(EditLine *, Int);");
+	    printf("\nprotected const el_func_t* func__get(void);\n");
+	    printf("#endif /* _h_fcns_c */\n");
+	}'
+	;;
+
+#	generate fcns.c from various .h files
+#
+-fc)
+    cat $FILES | $AWK '/el_action_t/ { print $3 }' | sort | $AWK '
+	BEGIN {
+	    printf("/* Automatically generated file, do not edit */\n");
+	    printf("#include \"config.h\"\n#include \"el.h\"\n");
+	    printf("private const el_func_t el_func[] = {");
+	    maxlen = 80;
+	    needn = 1;
+	    len = 0;
+	}
+	{
+	    clen = 25 + 2;
+	    len += clen;
+	    if (len >= maxlen)
+		needn = 1;
+	    if (needn) {
+		printf("\n    ");
+		needn = 0;
+		len = 4 + clen;
+	    }
+	    s = $1 ",";
+	    printf("%-26.26s ", s);
+	}
+	END {
+	    printf("\n};\n");
+	    printf("\nprotected const el_func_t* func__get(void) { return el_func; }\n");
+	}'
+	;;
+
+#	generate editline.c from various .c files
+#
+-e)
+	echo "$FILES" | tr ' ' '\012' | $AWK '
+	BEGIN {
+	    printf("/* Automatically generated file, do not edit */\n");
+	    printf("#define protected static\n");
+	    printf("#define SCCSID\n");
+	}
+	{
+	    printf("#include \"%s\"\n", $1);
+	}'
+	;;
+
+#	generate man page fragment from various .c files
+#
+-m)
+    cat $FILES | $AWK '
+	BEGIN {
+	    printf(".\\\" Section automatically generated with makelist\n");
+	    printf(".Bl -tag -width 4n\n");
+	}
+	/\(\):/ {
+	    pr = substr($2, 1, 2);
+	    if (pr == "vi" || pr == "em" || pr == "ed") {
+		name = substr($2, 1, length($2) - 3);
+		fname = "";
+		for (i = 1; i <= length(name); i++) {
+		    s = substr(name, i, 1);
+		    if (s == "_")
+			s = "-";
+		    fname = fname s;
+		}
+
+		printf(".It Ic %s\n", fname);
+		ok = 1;
+	    }
+	}
+	/^ \*/ {
+	    if (ok) {
+		for (i = 2; i < NF; i++)
+		    printf("%s ", $i);
+		printf("%s.\n", $i);
+		ok = 0;
+	    }
+	}
+	END {
+	    printf(".El\n");
+	    printf(".\\\" End of section automatically generated with makelist\n");
+	}'
+	;;
+
+*)
+    echo $USAGE 1>&2
+    exit 1
+    ;;
+
+esac

src/map.h

@@ -0,0 +1,77 @@
+/*	$NetBSD: map.h,v 1.9 2009/12/30 22:37:40 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)map.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.map.h:	Editor maps
+ */
+#ifndef _h_el_map
+#define	_h_el_map
+
+typedef struct el_bindings_t {	/* for the "bind" shell command */
+	const Char	*name;		/* function name for bind command */
+	int		 func;		/* function numeric value */
+	const Char	*description;	/* description of function */
+} el_bindings_t;
+
+
+typedef struct el_map_t {
+	el_action_t	*alt;		/* The current alternate key map */
+	el_action_t	*key;		/* The current normal key map	*/
+	el_action_t	*current;	/* The keymap we are using	*/
+	const el_action_t *emacs;	/* The default emacs key map	*/
+	const el_action_t *vic;		/* The vi command mode key map	*/
+	const el_action_t *vii;		/* The vi insert mode key map	*/
+	int		 type;		/* Emacs or vi			*/
+	el_bindings_t	*help;		/* The help for the editor functions */
+	el_func_t	*func;		/* List of available functions	*/
+	int		 nfunc;		/* The number of functions/help items */
+} el_map_t;
+
+#define	MAP_EMACS	0
+#define	MAP_VI		1
+
+#define N_KEYS      256
+
+protected int	map_bind(EditLine *, int, const Char **);
+protected int	map_init(EditLine *);
+protected void	map_end(EditLine *);
+protected void	map_init_vi(EditLine *);
+protected void	map_init_emacs(EditLine *);
+protected int	map_set_editor(EditLine *, Char *);
+protected int	map_get_editor(EditLine *, const Char **);
+protected int	map_addfunc(EditLine *, const Char *, const Char *, el_func_t);
+
+#endif /* _h_el_map */

src/parse.c

@@ -0,0 +1,286 @@
+/*	$NetBSD: parse.c,v 1.27 2014/07/06 18:15:34 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#if !defined(lint) && !defined(SCCSID)
+#if 0
+static char sccsid[] = "@(#)parse.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: parse.c,v 1.27 2014/07/06 18:15:34 christos Exp $");
+#endif
+#endif /* not lint && not SCCSID */
+
+/*
+ * parse.c: parse an editline extended command
+ *
+ * commands are:
+ *
+ *	bind
+ *	echotc
+ *	edit
+ *	gettc
+ *	history
+ *	settc
+ *	setty
+ */
+#include "el.h"
+#include <stdlib.h>
+
+private const struct {
+	const Char *name;
+	int (*func)(EditLine *, int, const Char **);
+} cmds[] = {
+	{ STR("bind"),  	map_bind	},
+	{ STR("echotc"),	terminal_echotc	},
+	{ STR("edit"),  	el_editmode	},
+	{ STR("history"),	hist_command	},
+	{ STR("telltc"),	terminal_telltc	},
+	{ STR("settc"),	        terminal_settc	},
+	{ STR("setty"),	        tty_stty	},
+	{ NULL,		        NULL		}
+};
+
+
+/* parse_line():
+ *	Parse a line and dispatch it
+ */
+protected int
+parse_line(EditLine *el, const Char *line)
+{
+	const Char **argv;
+	int argc;
+	TYPE(Tokenizer) *tok;
+
+	tok = FUN(tok,init)(NULL);
+	FUN(tok,str)(tok, line, &argc, &argv);
+	argc = FUN(el,parse)(el, argc, argv);
+	FUN(tok,end)(tok);
+	return argc;
+}
+
+
+/* el_parse():
+ *	Command dispatcher
+ */
+public int
+FUN(el,parse)(EditLine *el, int argc, const Char *argv[])
+{
+	const Char *ptr;
+	int i;
+
+	if (argc < 1)
+		return -1;
+	ptr = Strchr(argv[0], ':');
+	if (ptr != NULL) {
+		Char *tprog;
+		size_t l;
+
+		if (ptr == argv[0])
+			return 0;
+		l = (size_t)(ptr - argv[0] - 1);
+		tprog = el_malloc((l + 1) * sizeof(*tprog));
+		if (tprog == NULL)
+			return 0;
+		(void) Strncpy(tprog, argv[0], l);
+		tprog[l] = '\0';
+		ptr++;
+		l = (size_t)el_match(el->el_prog, tprog);
+		el_free(tprog);
+		if (!l)
+			return 0;
+	} else
+		ptr = argv[0];
+
+	for (i = 0; cmds[i].name != NULL; i++)
+		if (Strcmp(cmds[i].name, ptr) == 0) {
+			i = (*cmds[i].func) (el, argc, argv);
+			return -i;
+		}
+	return -1;
+}
+
+
+/* parse__escape():
+ *	Parse a string of the form ^<char> \<odigit> \<char> \U+xxxx and return
+ *	the appropriate character or -1 if the escape is not valid
+ */
+protected int
+parse__escape(const Char **ptr)
+{
+	const Char *p;
+	Int c;
+
+	p = *ptr;
+
+	if (p[1] == 0)
+		return -1;
+
+	if (*p == '\\') {
+		p++;
+		switch (*p) {
+		case 'a':
+			c = '\007';	/* Bell */
+			break;
+		case 'b':
+			c = '\010';	/* Backspace */
+			break;
+		case 't':
+			c = '\011';	/* Horizontal Tab */
+			break;
+		case 'n':
+			c = '\012';	/* New Line */
+			break;
+		case 'v':
+			c = '\013';	/* Vertical Tab */
+			break;
+		case 'f':
+			c = '\014';	/* Form Feed */
+			break;
+		case 'r':
+			c = '\015';	/* Carriage Return */
+			break;
+		case 'e':
+			c = '\033';	/* Escape */
+			break;
+                case 'U':               /* Unicode \U+xxxx or \U+xxxxx format */
+                {
+                        int i;
+                        const Char hex[] = STR("0123456789ABCDEF");
+                        const Char *h;
+                        ++p;
+                        if (*p++ != '+')
+                                return -1;
+			c = 0;
+                        for (i = 0; i < 5; ++i) {
+                                h = Strchr(hex, *p++);
+                                if (!h && i < 4)
+                                        return -1;
+                                else if (h)
+                                        c = (c << 4) | ((int)(h - hex));
+                                else
+                                        --p;
+                        }
+                        if (c > 0x10FFFF) /* outside valid character range */
+                                return -1;
+                        break;
+                }
+		case '0':
+		case '1':
+		case '2':
+		case '3':
+		case '4':
+		case '5':
+		case '6':
+		case '7':
+		{
+			int cnt, ch;
+
+			for (cnt = 0, c = 0; cnt < 3; cnt++) {
+				ch = *p++;
+				if (ch < '0' || ch > '7') {
+					p--;
+					break;
+				}
+				c = (c << 3) | (ch - '0');
+			}
+			if ((c & (wint_t)0xffffff00) != (wint_t)0)
+				return -1;
+			--p;
+			break;
+		}
+		default:
+			c = *p;
+			break;
+		}
+	} else if (*p == '^') {
+		p++;
+		c = (*p == '?') ? '\177' : (*p & 0237);
+	} else
+		c = *p;
+	*ptr = ++p;
+	return c;
+}
+
+/* parse__string():
+ *	Parse the escapes from in and put the raw string out
+ */
+protected Char *
+parse__string(Char *out, const Char *in)
+{
+	Char *rv = out;
+	int n;
+
+	for (;;)
+		switch (*in) {
+		case '\0':
+			*out = '\0';
+			return rv;
+
+		case '\\':
+		case '^':
+			if ((n = parse__escape(&in)) == -1)
+				return NULL;
+			*out++ = n;
+			break;
+
+		case 'M':
+			if (in[1] == '-' && in[2] != '\0') {
+				*out++ = '\033';
+				in += 2;
+				break;
+			}
+			/*FALLTHROUGH*/
+
+		default:
+			*out++ = *in++;
+			break;
+		}
+}
+
+
+/* parse_cmd():
+ *	Return the command number for the command string given
+ *	or -1 if one is not found
+ */
+protected int
+parse_cmd(EditLine *el, const Char *cmd)
+{
+	el_bindings_t *b = el->el_map.help;
+	size_t i;
+
+	for (i = 0; i < el->el_map.nfunc; i++)
+		if (Strcmp(b[i].name, cmd) == 0)
+			return b[i].func;
+	return -1;
+}

src/parse.h

@@ -0,0 +1,48 @@
+/*	$NetBSD: parse.h,v 1.7 2009/12/30 22:37:40 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)parse.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.parse.h: Parser functions
+ */
+#ifndef _h_el_parse
+#define	_h_el_parse
+
+protected int	 parse_line(EditLine *, const Char *);
+protected int	 parse__escape(const Char **);
+protected Char	*parse__string(Char *, const Char *);
+protected int	 parse_cmd(EditLine *, const Char *);
+
+#endif /* _h_el_parse */

src/prompt.c

@@ -0,0 +1,199 @@
+/*	$NetBSD: prompt.c,v 1.20 2011/07/29 15:16:33 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#if !defined(lint) && !defined(SCCSID)
+#if 0
+static char sccsid[] = "@(#)prompt.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: prompt.c,v 1.20 2011/07/29 15:16:33 christos Exp $");
+#endif
+#endif /* not lint && not SCCSID */
+
+/*
+ * prompt.c: Prompt printing functions
+ */
+#include <stdio.h>
+#include "el.h"
+
+private Char	*prompt_default(EditLine *);
+private Char	*prompt_default_r(EditLine *);
+
+/* prompt_default():
+ *	Just a default prompt, in case the user did not provide one
+ */
+private Char *
+/*ARGSUSED*/
+prompt_default(EditLine *el __attribute__((__unused__)))
+{
+	static Char a[3] = {'?', ' ', '\0'};
+
+	return a;
+}
+
+
+/* prompt_default_r():
+ *	Just a default rprompt, in case the user did not provide one
+ */
+private Char *
+/*ARGSUSED*/
+prompt_default_r(EditLine *el __attribute__((__unused__)))
+{
+	static Char a[1] = {'\0'};
+
+	return a;
+}
+
+
+/* prompt_print():
+ *	Print the prompt and update the prompt position.
+ */
+protected void
+prompt_print(EditLine *el, int op)
+{
+	el_prompt_t *elp;
+	Char *p;
+	int ignore = 0;
+
+	if (op == EL_PROMPT)
+		elp = &el->el_prompt;
+	else
+		elp = &el->el_rprompt;
+
+	if (elp->p_wide)
+		p = (*elp->p_func)(el);
+	else
+		p = ct_decode_string((char *)(void *)(*elp->p_func)(el),
+		    &el->el_scratch);
+
+	for (; *p; p++) {
+		if (elp->p_ignore == *p) {
+			ignore = !ignore;
+			continue;
+		}
+		if (ignore)
+			terminal__putc(el, *p);
+		else
+			re_putc(el, *p, 1);
+	}
+
+	elp->p_pos.v = el->el_refresh.r_cursor.v;
+	elp->p_pos.h = el->el_refresh.r_cursor.h;
+}
+
+
+/* prompt_init():
+ *	Initialize the prompt stuff
+ */
+protected int
+prompt_init(EditLine *el)
+{
+
+	el->el_prompt.p_func = prompt_default;
+	el->el_prompt.p_pos.v = 0;
+	el->el_prompt.p_pos.h = 0;
+	el->el_prompt.p_ignore = '\0';
+	el->el_rprompt.p_func = prompt_default_r;
+	el->el_rprompt.p_pos.v = 0;
+	el->el_rprompt.p_pos.h = 0;
+	el->el_rprompt.p_ignore = '\0';
+	return 0;
+}
+
+
+/* prompt_end():
+ *	Clean up the prompt stuff
+ */
+protected void
+/*ARGSUSED*/
+prompt_end(EditLine *el __attribute__((__unused__)))
+{
+}
+
+
+/* prompt_set():
+ *	Install a prompt printing function
+ */
+protected int
+prompt_set(EditLine *el, el_pfunc_t prf, Char c, int op, int wide)
+{
+	el_prompt_t *p;
+
+	if (op == EL_PROMPT || op == EL_PROMPT_ESC)
+		p = &el->el_prompt;
+	else
+		p = &el->el_rprompt;
+
+	if (prf == NULL) {
+		if (op == EL_PROMPT || op == EL_PROMPT_ESC)
+			p->p_func = prompt_default;
+		else
+			p->p_func = prompt_default_r;
+	} else {
+		p->p_func = prf;
+	}
+
+	p->p_ignore = c;
+
+	p->p_pos.v = 0;
+	p->p_pos.h = 0;
+	p->p_wide = wide;
+
+	return 0;
+}
+
+
+/* prompt_get():
+ *	Retrieve the prompt printing function
+ */
+protected int
+prompt_get(EditLine *el, el_pfunc_t *prf, Char *c, int op)
+{
+	el_prompt_t *p;
+
+	if (prf == NULL)
+		return -1;
+
+	if (op == EL_PROMPT)
+		p = &el->el_prompt;
+	else
+		p = &el->el_rprompt;
+
+	if (prf)
+		*prf = p->p_func;
+	if (c)
+		*c = p->p_ignore;
+
+	return 0;
+}

src/prompt.h

@@ -0,0 +1,67 @@
+/*	$NetBSD: prompt.h,v 1.10 2009/12/30 22:37:40 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)prompt.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.prompt.h: Prompt printing stuff
+ */
+#ifndef _h_el_prompt
+#define	_h_el_prompt
+
+#include "histedit.h"
+
+typedef Char    *(*el_pfunc_t)(EditLine *);
+
+typedef struct el_prompt_t {
+	el_pfunc_t	p_func;		/* Function to return the prompt */
+	coord_t		p_pos;		/* position in the line after prompt */
+	/*
+	 * 8519376: Use an unnamed union to force the size of el_prompt_t to
+	 * be the same, independent of the size of Char.
+	 */
+	union {
+	    Char	p_ignore;	/* character to start/end literal */
+	    wchar_t	dummy;
+	};
+	int		p_wide;	
+} el_prompt_t;
+
+protected void	prompt_print(EditLine *, int);
+protected int	prompt_set(EditLine *, el_pfunc_t, Char, int, int);
+protected int	prompt_get(EditLine *, el_pfunc_t *, Char *, int);
+protected int	prompt_init(EditLine *);
+protected void	prompt_end(EditLine *);
+
+#endif /* _h_el_prompt */

src/read.c

@@ -0,0 +1,731 @@
+/*	$NetBSD: read.c,v 1.69 2012/09/11 12:31:08 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#if !defined(lint) && !defined(SCCSID)
+#if 0
+static char sccsid[] = "@(#)read.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: read.c,v 1.69 2012/09/11 12:31:08 christos Exp $");
+#endif
+#endif /* not lint && not SCCSID */
+
+/*
+ * read.c: Clean this junk up! This is horrible code.
+ *	   Terminal read functions
+ */
+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <limits.h>
+#include "el.h"
+
+#define OKCMD	-1	/* must be -1! */
+
+private int	read__fixio(int, int);
+private int	read_preread(EditLine *);
+private int	read_char(EditLine *, Char *);
+private int	read_getcmd(EditLine *, el_action_t *, Char *);
+private void	read_pop(c_macro_t *);
+
+/* read_init():
+ *	Initialize the read stuff
+ */
+protected int
+read_init(EditLine *el)
+{
+	/* builtin read_char */
+	el->el_read.read_char = read_char;
+	return 0;
+}
+
+
+/* el_read_setfn():
+ *	Set the read char function to the one provided.
+ *	If it is set to EL_BUILTIN_GETCFN, then reset to the builtin one.
+ */
+protected int
+el_read_setfn(EditLine *el, el_rfunc_t rc)
+{
+	el->el_read.read_char = (rc == EL_BUILTIN_GETCFN) ? read_char : rc;
+	return 0;
+}
+
+
+/* el_read_getfn():
+ *	return the current read char function, or EL_BUILTIN_GETCFN
+ *	if it is the default one
+ */
+protected el_rfunc_t
+el_read_getfn(EditLine *el)
+{
+       return el->el_read.read_char == read_char ?
+	    EL_BUILTIN_GETCFN : el->el_read.read_char;
+}
+
+
+#ifndef MIN
+#define MIN(A,B) ((A) < (B) ? (A) : (B))
+#endif
+
+#ifdef DEBUG_EDIT
+private void
+read_debug(EditLine *el)
+{
+
+	if (el->el_line.cursor > el->el_line.lastchar)
+		(void) fprintf(el->el_errfile, "cursor > lastchar\r\n");
+	if (el->el_line.cursor < el->el_line.buffer)
+		(void) fprintf(el->el_errfile, "cursor < buffer\r\n");
+	if (el->el_line.cursor > el->el_line.limit)
+		(void) fprintf(el->el_errfile, "cursor > limit\r\n");
+	if (el->el_line.lastchar > el->el_line.limit)
+		(void) fprintf(el->el_errfile, "lastchar > limit\r\n");
+	if (el->el_line.limit != &el->el_line.buffer[EL_BUFSIZ - 2])
+		(void) fprintf(el->el_errfile, "limit != &buffer[EL_BUFSIZ-2]\r\n");
+}
+#endif /* DEBUG_EDIT */
+
+
+/* read__fixio():
+ *	Try to recover from a read error
+ */
+/* ARGSUSED */
+private int
+read__fixio(int fd __attribute__((__unused__)), int e)
+{
+
+	switch (e) {
+	case -1:		/* Make sure that the code is reachable */
+
+#ifdef EWOULDBLOCK
+	case EWOULDBLOCK:
+#ifndef TRY_AGAIN
+#define TRY_AGAIN
+#endif
+#endif /* EWOULDBLOCK */
+
+#if defined(POSIX) && defined(EAGAIN)
+#if defined(EWOULDBLOCK) && EWOULDBLOCK != EAGAIN
+	case EAGAIN:
+#ifndef TRY_AGAIN
+#define TRY_AGAIN
+#endif
+#endif /* EWOULDBLOCK && EWOULDBLOCK != EAGAIN */
+#endif /* POSIX && EAGAIN */
+
+		e = 0;
+#ifdef TRY_AGAIN
+#if defined(F_SETFL) && defined(O_NDELAY)
+		if ((e = fcntl(fd, F_GETFL, 0)) == -1)
+			return -1;
+
+		if (fcntl(fd, F_SETFL, e & ~O_NDELAY) == -1)
+			return -1;
+		else
+			e = 1;
+#endif /* F_SETFL && O_NDELAY */
+
+#ifdef FIONBIO
+		{
+			int zero = 0;
+
+			if (ioctl(fd, FIONBIO, &zero) == -1)
+				return -1;
+			else
+				e = 1;
+		}
+#endif /* FIONBIO */
+
+#endif /* TRY_AGAIN */
+		return e ? 0 : -1;
+
+	case EINTR:
+		return 0;
+
+	default:
+		return -1;
+	}
+}
+
+
+/* read_preread():
+ *	Try to read the stuff in the input queue;
+ */
+private int
+read_preread(EditLine *el)
+{
+	int chrs = 0;
+
+	if (el->el_tty.t_mode == ED_IO)
+		return 0;
+
+#ifndef WIDECHAR
+/* FIONREAD attempts to buffer up multiple bytes, and to make that work
+ * properly with partial wide/UTF-8 characters would need some careful work. */
+#ifdef FIONREAD
+	(void) ioctl(el->el_infd, FIONREAD, &chrs);
+	if (chrs > 0) {
+		char buf[EL_BUFSIZ];
+
+		chrs = read(el->el_infd, buf,
+		    (size_t) MIN(chrs, EL_BUFSIZ - 1));
+		if (chrs > 0) {
+			buf[chrs] = '\0';
+			el_push(el, buf);
+		}
+	}
+#endif /* FIONREAD */
+#endif
+	return chrs > 0;
+}
+
+
+/* el_push():
+ *	Push a macro
+ */
+public void
+FUN(el,push)(EditLine *el, const Char *str)
+{
+	c_macro_t *ma = &el->el_chared.c_macro;
+
+	if (str != NULL && ma->level + 1 < EL_MAXMACRO) {
+		ma->level++;
+		if ((ma->macro[ma->level] = Strdup(str)) != NULL)
+			return;
+		ma->level--;
+	}
+	terminal_beep(el);
+	terminal__flush(el);
+}
+
+
+/* read_getcmd():
+ *	Get next command from the input stream, return OKCMD on success.
+ *	Character values > 255 are not looked up in the map, but inserted.
+ */
+private int
+read_getcmd(EditLine *el, el_action_t *cmdnum, Char *ch)
+{
+	el_action_t cmd;
+	int num;
+
+	el->el_errno = 0;
+	do {
+		if ((num = FUN(el,getc)(el, ch)) != 1) {/* if EOF or error */
+			el->el_errno = num == 0 ? 0 : errno;
+			return 0;	/* not OKCMD */
+		}
+
+#ifdef	KANJI
+		if ((*ch & 0200)) {
+			el->el_state.metanext = 0;
+			cmd = CcViMap[' '];
+			break;
+		} else
+#endif /* KANJI */
+
+		if (el->el_state.metanext) {
+			el->el_state.metanext = 0;
+			*ch |= 0200;
+		}
+#ifdef WIDECHAR
+		if (*ch >= N_KEYS)
+			cmd = ED_INSERT;
+		else
+#endif
+			cmd = el->el_map.current[(unsigned char) *ch];
+		if (cmd == ED_SEQUENCE_LEAD_IN) {
+			keymacro_value_t val;
+			switch (keymacro_get(el, ch, &val)) {
+			case XK_CMD:
+				cmd = val.cmd;
+				break;
+			case XK_STR:
+				FUN(el,push)(el, val.str);
+				break;
+#ifdef notyet
+			case XK_EXE:
+				/* XXX: In the future to run a user function */
+				RunCommand(val.str);
+				break;
+#endif
+			default:
+				EL_ABORT((el->el_errfile, "Bad XK_ type \n"));
+				break;
+			}
+		}
+		if (el->el_map.alt == NULL)
+			el->el_map.current = el->el_map.key;
+	} while (cmd == ED_SEQUENCE_LEAD_IN);
+	*cmdnum = cmd;
+	return OKCMD;
+}
+
+#ifdef WIDECHAR
+/* utf8_islead():
+ *	Test whether a byte is a leading byte of a UTF-8 sequence.
+ */
+private int
+utf8_islead(int c)
+{
+	return c < 0x80 ||	       /* single byte char */
+	       (c >= 0xc2 && c <= 0xf4); /* start of multibyte sequence */
+}
+#endif
+
+/* read_char():
+ *	Read a character from the tty.
+ */
+private int
+read_char(EditLine *el, Char *cp)
+{
+	ssize_t num_read;
+	int tried = 0;
+	char cbuf[MB_LEN_MAX];
+	size_t cbp = 0;
+	int bytes = 0;
+
+ again:
+	el->el_signal->sig_no = 0;
+	while ((num_read = read(el->el_infd, cbuf + cbp, (size_t)1)) == -1) {
+		int e = errno;
+		switch (el->el_signal->sig_no) {
+		case SIGCONT:
+			FUN(el,set)(el, EL_REFRESH);
+			/*FALLTHROUGH*/
+		case SIGWINCH:
+			sig_set(el);
+			goto again;
+		default:
+			break;
+		}
+		if (!tried && read__fixio(el->el_infd, e) == 0)
+			tried = 1;
+		else {
+			errno = e;
+			*cp = '\0';
+			return -1;
+		}
+	}
+	if (num_read == 0) return 0;
+
+#ifdef WIDECHAR
+	if (el->el_flags & CHARSET_IS_UTF8) {
+		if (!utf8_islead((unsigned char)cbuf[0]))
+			goto again; /* discard the byte we read and try again */
+		++cbp;
+		if ((bytes = ct_mbtowc(cp, cbuf, cbp)) == -1) {
+			ct_mbtowc_reset;
+			if (cbp >= MB_LEN_MAX) { /* "shouldn't happen" */
+				errno = EILSEQ;
+				*cp = '\0';
+				return -1;
+			}
+			goto again;
+		}
+	} else if (isascii((unsigned char)cbuf[0]) ||
+		/* we don't support other multibyte charsets */
+		++cbp != 1 ||
+		/* Try non-ASCII characters in a 8-bit character set */
+		(bytes = ct_mbtowc(cp, cbuf, cbp)) != 1)
+#endif
+		*cp = (unsigned char)cbuf[0];
+
+	if ((el->el_flags & IGNORE_EXTCHARS) && bytes > 1) {
+		cbp = 0; /* skip this character */
+		goto again;
+	}
+
+	return (int)num_read;
+}
+
+/* read_pop():
+ *	Pop a macro from the stack
+ */
+private void
+read_pop(c_macro_t *ma)
+{
+	int i;
+
+	el_free(ma->macro[0]);
+	for (i = 0; i < ma->level; i++)
+		ma->macro[i] = ma->macro[i + 1];
+	ma->level--;
+	ma->offset = 0;
+}
+
+/* el_getc():
+ *	Read a character
+ */
+public int
+FUN(el,getc)(EditLine *el, Char *cp)
+{
+	int num_read;
+	c_macro_t *ma = &el->el_chared.c_macro;
+
+	terminal__flush(el);
+	for (;;) {
+		if (ma->level < 0) {
+			if (!read_preread(el))
+				break;
+		}
+
+		if (ma->level < 0)
+			break;
+
+		if (ma->macro[0][ma->offset] == '\0') {
+			read_pop(ma);
+			continue;
+		}
+
+		*cp = ma->macro[0][ma->offset++];
+
+		if (ma->macro[0][ma->offset] == '\0') {
+			/* Needed for QuoteMode On */
+			read_pop(ma);
+		}
+
+		return 1;
+	}
+
+#ifdef DEBUG_READ
+	(void) fprintf(el->el_errfile, "Turning raw mode on\n");
+#endif /* DEBUG_READ */
+	if (tty_rawmode(el) < 0)/* make sure the tty is set up correctly */
+		return 0;
+
+#ifdef DEBUG_READ
+	(void) fprintf(el->el_errfile, "Reading a character\n");
+#endif /* DEBUG_READ */
+	num_read = (*el->el_read.read_char)(el, cp);
+	if (num_read < 0)
+		el->el_errno = errno;
+#ifdef WIDECHAR
+	if (el->el_flags & NARROW_READ)
+		*cp = *(char *)(void *)cp;
+#endif
+#ifdef DEBUG_READ
+	(void) fprintf(el->el_errfile, "Got it %c\n", *cp);
+#endif /* DEBUG_READ */
+	return num_read;
+}
+
+protected void
+read_prepare(EditLine *el)
+{
+	if (el->el_flags & HANDLE_SIGNALS)
+		sig_set(el);
+	if (el->el_flags & NO_TTY)
+		return;
+	if ((el->el_flags & (UNBUFFERED|EDIT_DISABLED)) == UNBUFFERED)
+		tty_rawmode(el);
+
+	/* This is relatively cheap, and things go terribly wrong if
+	   we have the wrong size. */
+	el_resize(el);
+	re_clear_display(el);	/* reset the display stuff */
+	ch_reset(el, 0);
+	re_refresh(el);		/* print the prompt */
+
+	if (el->el_flags & UNBUFFERED)
+		terminal__flush(el);
+}
+
+protected void
+read_finish(EditLine *el)
+{
+	if ((el->el_flags & UNBUFFERED) == 0)
+		(void) tty_cookedmode(el);
+	if (el->el_flags & HANDLE_SIGNALS)
+		sig_clr(el);
+}
+
+public const Char *
+FUN(el,gets)(EditLine *el, int *nread)
+{
+	int retval;
+	el_action_t cmdnum = 0;
+	int num;		/* how many chars we have read at NL */
+	Char ch, *cp;
+	int crlf = 0;
+	int nrb;
+#ifdef FIONREAD
+	c_macro_t *ma = &el->el_chared.c_macro;
+#endif /* FIONREAD */
+
+	if (nread == NULL)
+		nread = &nrb;
+	*nread = 0;
+
+	if (el->el_flags & NO_TTY) {
+		size_t idx;
+
+		cp = el->el_line.buffer;
+		while ((num = (*el->el_read.read_char)(el, cp)) == 1) {
+			/* make sure there is space for next character */
+			if (cp + 1 >= el->el_line.limit) {
+				idx = (size_t)(cp - el->el_line.buffer);
+				if (!ch_enlargebufs(el, (size_t)2))
+					break;
+				cp = &el->el_line.buffer[idx];
+			}
+			cp++;
+			if (el->el_flags & UNBUFFERED)
+				break;
+			if (cp[-1] == '\r' || cp[-1] == '\n')
+				break;
+		}
+		if (num == -1) {
+			if (errno == EINTR)
+				cp = el->el_line.buffer;
+			el->el_errno = errno;
+		} else if (num == 0) el->el_state.thiscmd = EL_EOF;
+
+		goto noedit;
+	}
+
+
+#ifdef FIONREAD
+	if (el->el_tty.t_mode == EX_IO && ma->level < 0) {
+		long chrs = 0;
+
+		(void) ioctl(el->el_infd, FIONREAD, &chrs);
+		if (chrs == 0) {
+			if (tty_rawmode(el) < 0) {
+				errno = 0;
+				*nread = 0;
+				return NULL;
+			}
+		}
+	}
+#endif /* FIONREAD */
+
+	if ((el->el_flags & UNBUFFERED) == 0)
+		read_prepare(el);
+
+	if (el->el_flags & EDIT_DISABLED) {
+		size_t idx;
+
+		if ((el->el_flags & UNBUFFERED) == 0)
+			cp = el->el_line.buffer;
+		else
+			cp = el->el_line.lastchar;
+
+		terminal__flush(el);
+
+		while ((num = (*el->el_read.read_char)(el, cp)) == 1) {
+			/* make sure there is space next character */
+			if (cp + 1 >= el->el_line.limit) {
+				idx = (size_t)(cp - el->el_line.buffer);
+				if (!ch_enlargebufs(el, (size_t)2))
+					break;
+				cp = &el->el_line.buffer[idx];
+			}
+			cp++;
+			crlf = cp[-1] == '\r' || cp[-1] == '\n';
+			if (el->el_flags & UNBUFFERED)
+				break;
+			if (crlf)
+				break;
+		}
+
+		if (num == -1) {
+			if (errno == EINTR)
+				cp = el->el_line.buffer;
+			el->el_errno = errno;
+		} else if (num == 0) el->el_state.thiscmd = EL_EOF;
+
+		goto noedit;
+	}
+
+	for (num = OKCMD; num == OKCMD;) {	/* while still editing this
+						 * line */
+#ifdef DEBUG_EDIT
+		read_debug(el);
+#endif /* DEBUG_EDIT */
+		/* if EOF or error */
+		if ((num = read_getcmd(el, &cmdnum, &ch)) != OKCMD) {
+#ifdef DEBUG_READ
+			(void) fprintf(el->el_errfile,
+			    "Returning from el_gets %d\n", num);
+#endif /* DEBUG_READ */
+			if (num == 0) el->el_state.thiscmd = EL_EOF;
+			break;
+		}
+		if (el->el_errno == EINTR) {
+			el->el_line.buffer[0] = '\0';
+			el->el_line.lastchar =
+			    el->el_line.cursor = el->el_line.buffer;
+			break;
+		}
+		if ((unsigned int)cmdnum >= (unsigned int)el->el_map.nfunc) {	/* BUG CHECK command */
+#ifdef DEBUG_EDIT
+			(void) fprintf(el->el_errfile,
+			    "ERROR: illegal command from key 0%o\r\n", ch);
+#endif /* DEBUG_EDIT */
+			continue;	/* try again */
+		}
+		/* now do the real command */
+#ifdef DEBUG_READ
+		{
+			el_bindings_t *b;
+			for (b = el->el_map.help; b->name; b++)
+				if (b->func == cmdnum)
+					break;
+			if (b->name)
+				(void) fprintf(el->el_errfile,
+				    "Executing %s\n", b->name);
+			else
+				(void) fprintf(el->el_errfile,
+				    "Error command = %d\n", cmdnum);
+		}
+#endif /* DEBUG_READ */
+		/* vi redo needs these way down the levels... */
+		el->el_state.thiscmd = cmdnum;
+		el->el_state.thisch = ch;
+		if (el->el_map.type == MAP_VI &&
+		    el->el_map.current == el->el_map.key &&
+		    el->el_chared.c_redo.pos < el->el_chared.c_redo.lim) {
+			if (cmdnum == VI_DELETE_PREV_CHAR &&
+			    el->el_chared.c_redo.pos != el->el_chared.c_redo.buf
+			    && Isprint(el->el_chared.c_redo.pos[-1]))
+				el->el_chared.c_redo.pos--;
+			else
+				*el->el_chared.c_redo.pos++ = ch;
+		}
+		retval = (*el->el_map.func[cmdnum]) (el, ch);
+#ifdef DEBUG_READ
+		(void) fprintf(el->el_errfile,
+			"Returned state %d\n", retval );
+#endif /* DEBUG_READ */
+
+		/* save the last command here */
+		el->el_state.lastcmd = cmdnum;
+
+		/* use any return value */
+		switch (retval) {
+		case CC_CURSOR:
+			re_refresh_cursor(el);
+			break;
+
+		case CC_REDISPLAY:
+			re_clear_lines(el);
+			re_clear_display(el);
+			/* FALLTHROUGH */
+
+		case CC_REFRESH:
+			re_refresh(el);
+			break;
+
+		case CC_REFRESH_BEEP:
+			re_refresh(el);
+			terminal_beep(el);
+			break;
+
+		case CC_NORM:	/* normal char */
+			break;
+
+		case CC_ARGHACK:	/* Suggested by Rich Salz */
+			/* <rsalz@pineapple.bbn.com> */
+			continue;	/* keep going... */
+
+		case CC_EOF:	/* end of file typed */
+			if ((el->el_flags & UNBUFFERED) == 0)
+				num = 0;
+			else if (num == -1) {
+				*el->el_line.lastchar++ = CONTROL('d');
+				el->el_line.cursor = el->el_line.lastchar;
+				num = 1;
+			}
+			break;
+
+		case CC_NEWLINE:	/* normal end of line */
+			num = (int)(el->el_line.lastchar - el->el_line.buffer);
+			break;
+
+		case CC_FATAL:	/* fatal error, reset to known state */
+#ifdef DEBUG_READ
+			(void) fprintf(el->el_errfile,
+			    "*** editor fatal ERROR ***\r\n\n");
+#endif /* DEBUG_READ */
+			/* put (real) cursor in a known place */
+			re_clear_display(el);	/* reset the display stuff */
+			ch_reset(el, 1);	/* reset the input pointers */
+			re_refresh(el); /* print the prompt again */
+			break;
+
+		case CC_ERROR:
+		default:	/* functions we don't know about */
+#ifdef DEBUG_READ
+			(void) fprintf(el->el_errfile,
+			    "*** editor ERROR ***\r\n\n");
+#endif /* DEBUG_READ */
+			terminal_beep(el);
+			terminal__flush(el);
+			break;
+		}
+		el->el_state.argument = 1;
+		el->el_state.doingarg = 0;
+		el->el_chared.c_vcmd.action = NOP;
+		if (el->el_flags & UNBUFFERED)
+			break;
+	}
+
+	terminal__flush(el);		/* flush any buffered output */
+	/* make sure the tty is set up correctly */
+	if ((el->el_flags & UNBUFFERED) == 0) {
+		read_finish(el);
+		*nread = num != -1 ? num : 0;
+	} else {
+		*nread = (int)(el->el_line.lastchar - el->el_line.buffer);
+	}
+	goto done;
+noedit:
+	el->el_line.cursor = el->el_line.lastchar = cp;
+	*cp = '\0';
+	*nread = (int)(el->el_line.cursor - el->el_line.buffer);
+done:
+	if (*nread == 0) {
+		if (num == -1) {
+			*nread = -1;
+			errno = el->el_errno;
+		}
+		return NULL;
+	} else {
+		el->el_line.buffer[*nread] = 0;
+		return el->el_line.buffer;
+	}
+}

src/read.h

@@ -0,0 +1,50 @@
+/*	$NetBSD: read.h,v 1.7 2009/12/30 22:37:40 christos Exp $	*/
+
+/*-
+ * Copyright (c) 2001 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Anthony Mallet.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * el.read.h: Character reading functions
+ */
+#ifndef	_h_el_read
+#define	_h_el_read
+
+typedef int (*el_rfunc_t)(EditLine *, Char *);
+
+typedef struct el_read_t {
+	el_rfunc_t	read_char;	/* Function to read a character */
+} el_read_t;
+ 
+protected int		read_init(EditLine *);
+protected void		read_prepare(EditLine *);
+protected void		read_finish(EditLine *);
+protected int		el_read_setfn(EditLine *, el_rfunc_t);
+protected el_rfunc_t	el_read_getfn(EditLine *);
+
+#endif /* _h_el_read */

src/refresh.h

@@ -0,0 +1,59 @@
+/*	$NetBSD: refresh.h,v 1.6 2009/12/30 22:37:40 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)refresh.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.refresh.h: Screen refresh functions
+ */
+#ifndef _h_el_refresh
+#define	_h_el_refresh
+
+#include "histedit.h"
+
+typedef struct {
+	coord_t	r_cursor;	/* Refresh cursor position	*/
+	int	r_oldcv;	/* Vertical locations		*/
+	int	r_newcv;
+} el_refresh_t;
+
+protected void	re_putc(EditLine *, Int, int);
+protected void	re_clear_lines(EditLine *);
+protected void	re_clear_display(EditLine *);
+protected void	re_refresh(EditLine *);
+protected void	re_refresh_cursor(EditLine *);
+protected void	re_fastaddc(EditLine *);
+protected void	re_goto_bottom(EditLine *);
+
+#endif /* _h_el_refresh */

src/search.c

@@ -0,0 +1,642 @@
+/*	$NetBSD: search.c,v 1.30 2011/10/04 15:27:04 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#if !defined(lint) && !defined(SCCSID)
+#if 0
+static char sccsid[] = "@(#)search.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: search.c,v 1.30 2011/10/04 15:27:04 christos Exp $");
+#endif
+#endif /* not lint && not SCCSID */
+
+/*
+ * search.c: History and character search functions
+ */
+#include <stdlib.h>
+#include <sys/types.h>
+#if defined(REGEX)
+#include <regex.h>
+#elif defined(REGEXP)
+#include <regexp.h>
+#endif
+#include "el.h"
+
+/*
+ * Adjust cursor in vi mode to include the character under it
+ */
+#define	EL_CURSOR(el) \
+    ((el)->el_line.cursor + (((el)->el_map.type == MAP_VI) && \
+			    ((el)->el_map.current == (el)->el_map.alt)))
+
+/* search_init():
+ *	Initialize the search stuff
+ */
+protected int
+search_init(EditLine *el)
+{
+
+	el->el_search.patbuf = el_malloc(EL_BUFSIZ *
+	    sizeof(*el->el_search.patbuf));
+	if (el->el_search.patbuf == NULL)
+		return -1;
+	el->el_search.patlen = 0;
+	el->el_search.patdir = -1;
+	el->el_search.chacha = '\0';
+	el->el_search.chadir = CHAR_FWD;
+	el->el_search.chatflg = 0;
+	return 0;
+}
+
+
+/* search_end():
+ *	Initialize the search stuff
+ */
+protected void
+search_end(EditLine *el)
+{
+
+	el_free(el->el_search.patbuf);
+	el->el_search.patbuf = NULL;
+}
+
+
+#ifdef REGEXP
+/* regerror():
+ *	Handle regular expression errors
+ */
+public void
+/*ARGSUSED*/
+regerror(const char *msg)
+{
+}
+#endif
+
+
+/* el_match():
+ *	Return if string matches pattern
+ */
+protected int
+el_match(const Char *str, const Char *pat)
+{
+#ifdef WIDECHAR
+	static ct_buffer_t conv;
+#endif
+#if defined (REGEX)
+	regex_t re;
+	int rv;
+#elif defined (REGEXP)
+	regexp *rp;
+	int rv;
+#else
+	extern char	*re_comp(const char *);
+	extern int	 re_exec(const char *);
+#endif
+
+	if (Strstr(str, pat) != 0)
+		return 1;
+
+#if defined(REGEX)
+	if (regcomp(&re, ct_encode_string(pat, &conv), 0) == 0) {
+		rv = regexec(&re, ct_encode_string(str, &conv), (size_t)0, NULL,
+		    0) == 0;
+		regfree(&re);
+	} else {
+		rv = 0;
+	}
+	return rv;
+#elif defined(REGEXP)
+	if ((re = regcomp(ct_encode_string(pat, &conv))) != NULL) {
+		rv = regexec(re, ct_encode_string(str, &conv));
+		el_free(re);
+	} else {
+		rv = 0;
+	}
+	return rv;
+#else
+	if (re_comp(ct_encode_string(pat, &conv)) != NULL)
+		return 0;
+	else
+		return re_exec(ct_encode_string(str, &conv) == 1);
+#endif
+}
+
+
+/* c_hmatch():
+ *	 return True if the pattern matches the prefix
+ */
+protected int
+c_hmatch(EditLine *el, const Char *str)
+{
+#ifdef SDEBUG
+	(void) fprintf(el->el_errfile, "match `%s' with `%s'\n",
+	    el->el_search.patbuf, str);
+#endif /* SDEBUG */
+
+	return el_match(str, el->el_search.patbuf);
+}
+
+
+/* c_setpat():
+ *	Set the history seatch pattern
+ */
+protected void
+c_setpat(EditLine *el)
+{
+	if (el->el_state.lastcmd != ED_SEARCH_PREV_HISTORY &&
+	    el->el_state.lastcmd != ED_SEARCH_NEXT_HISTORY) {
+		el->el_search.patlen =
+		    (size_t)(EL_CURSOR(el) - el->el_line.buffer);
+		if (el->el_search.patlen >= EL_BUFSIZ)
+			el->el_search.patlen = EL_BUFSIZ - 1;
+		if (el->el_search.patlen != 0) {
+			(void) Strncpy(el->el_search.patbuf, el->el_line.buffer,
+			    el->el_search.patlen);
+			el->el_search.patbuf[el->el_search.patlen] = '\0';
+		} else
+			el->el_search.patlen = Strlen(el->el_search.patbuf);
+	}
+#ifdef SDEBUG
+	(void) fprintf(el->el_errfile, "\neventno = %d\n",
+	    el->el_history.eventno);
+	(void) fprintf(el->el_errfile, "patlen = %d\n", el->el_search.patlen);
+	(void) fprintf(el->el_errfile, "patbuf = \"%s\"\n",
+	    el->el_search.patbuf);
+	(void) fprintf(el->el_errfile, "cursor %d lastchar %d\n",
+	    EL_CURSOR(el) - el->el_line.buffer,
+	    el->el_line.lastchar - el->el_line.buffer);
+#endif
+}
+
+
+/* ce_inc_search():
+ *	Emacs incremental search
+ */
+protected el_action_t
+ce_inc_search(EditLine *el, int dir)
+{
+	static const Char STRfwd[] = {'f', 'w', 'd', '\0'},
+	     STRbck[] = {'b', 'c', 'k', '\0'};
+	static Char pchar = ':';/* ':' = normal, '?' = failed */
+	static Char endcmd[2] = {'\0', '\0'};
+	Char ch, *ocursor = el->el_line.cursor, oldpchar = pchar;
+	const Char *cp;
+
+	el_action_t ret = CC_NORM;
+
+	int ohisteventno = el->el_history.eventno;
+	size_t oldpatlen = el->el_search.patlen;
+	int newdir = dir;
+	int done, redo;
+
+	if (el->el_line.lastchar + sizeof(STRfwd) /
+	    sizeof(*el->el_line.lastchar) + 2 +
+	    el->el_search.patlen >= el->el_line.limit)
+		return CC_ERROR;
+
+	for (;;) {
+
+		if (el->el_search.patlen == 0) {	/* first round */
+			pchar = ':';
+#ifdef ANCHOR
+#define	LEN	2
+			el->el_search.patbuf[el->el_search.patlen++] = '.';
+			el->el_search.patbuf[el->el_search.patlen++] = '*';
+#else
+#define	LEN	0
+#endif
+		}
+		done = redo = 0;
+		*el->el_line.lastchar++ = '\n';
+		for (cp = (newdir == ED_SEARCH_PREV_HISTORY) ? STRbck : STRfwd;
+		    *cp; *el->el_line.lastchar++ = *cp++)
+			continue;
+		*el->el_line.lastchar++ = pchar;
+		for (cp = &el->el_search.patbuf[LEN];
+		    cp < &el->el_search.patbuf[el->el_search.patlen];
+		    *el->el_line.lastchar++ = *cp++)
+			continue;
+		*el->el_line.lastchar = '\0';
+		re_refresh(el);
+
+		if (FUN(el,getc)(el, &ch) != 1)
+			return ed_end_of_file(el, 0);
+
+		switch (el->el_map.current[(unsigned char) ch]) {
+		case ED_INSERT:
+		case ED_DIGIT:
+			if (el->el_search.patlen >= EL_BUFSIZ - LEN)
+				terminal_beep(el);
+			else {
+				el->el_search.patbuf[el->el_search.patlen++] =
+				    ch;
+				*el->el_line.lastchar++ = ch;
+				*el->el_line.lastchar = '\0';
+				re_refresh(el);
+			}
+			break;
+
+		case EM_INC_SEARCH_NEXT:
+			newdir = ED_SEARCH_NEXT_HISTORY;
+			redo++;
+			break;
+
+		case EM_INC_SEARCH_PREV:
+			newdir = ED_SEARCH_PREV_HISTORY;
+			redo++;
+			break;
+
+		case EM_DELETE_PREV_CHAR:
+		case ED_DELETE_PREV_CHAR:
+			if (el->el_search.patlen > LEN)
+				done++;
+			else
+				terminal_beep(el);
+			break;
+
+		default:
+			switch (ch) {
+			case 0007:	/* ^G: Abort */
+				ret = CC_ERROR;
+				done++;
+				break;
+
+			case 0027:	/* ^W: Append word */
+			/* No can do if globbing characters in pattern */
+				for (cp = &el->el_search.patbuf[LEN];; cp++)
+				    if (cp >= &el->el_search.patbuf[
+					el->el_search.patlen]) {
+					el->el_line.cursor +=
+					    el->el_search.patlen - LEN - 1;
+					cp = c__next_word(el->el_line.cursor,
+					    el->el_line.lastchar, 1,
+					    ce__isword);
+					while (el->el_line.cursor < cp &&
+					    *el->el_line.cursor != '\n') {
+						if (el->el_search.patlen >=
+						    EL_BUFSIZ - LEN) {
+							terminal_beep(el);
+							break;
+						}
+						el->el_search.patbuf[el->el_search.patlen++] =
+						    *el->el_line.cursor;
+						*el->el_line.lastchar++ =
+						    *el->el_line.cursor++;
+					}
+					el->el_line.cursor = ocursor;
+					*el->el_line.lastchar = '\0';
+					re_refresh(el);
+					break;
+				    } else if (isglob(*cp)) {
+					    terminal_beep(el);
+					    break;
+				    }
+				break;
+
+			default:	/* Terminate and execute cmd */
+				endcmd[0] = ch;
+				FUN(el,push)(el, endcmd);
+				/* FALLTHROUGH */
+
+			case 0033:	/* ESC: Terminate */
+				ret = CC_REFRESH;
+				done++;
+				break;
+			}
+			break;
+		}
+
+		while (el->el_line.lastchar > el->el_line.buffer &&
+		    *el->el_line.lastchar != '\n')
+			*el->el_line.lastchar-- = '\0';
+		*el->el_line.lastchar = '\0';
+
+		if (!done) {
+
+			/* Can't search if unmatched '[' */
+			for (cp = &el->el_search.patbuf[el->el_search.patlen-1],
+			    ch = ']';
+			    cp >= &el->el_search.patbuf[LEN];
+			    cp--)
+				if (*cp == '[' || *cp == ']') {
+					ch = *cp;
+					break;
+				}
+			if (el->el_search.patlen > LEN && ch != '[') {
+				if (redo && newdir == dir) {
+					if (pchar == '?') { /* wrap around */
+						el->el_history.eventno =
+						    newdir == ED_SEARCH_PREV_HISTORY ? 0 : 0x7fffffff;
+						if (hist_get(el) == CC_ERROR)
+							/* el->el_history.event
+							 * no was fixed by
+							 * first call */
+							(void) hist_get(el);
+						el->el_line.cursor = newdir ==
+						    ED_SEARCH_PREV_HISTORY ?
+						    el->el_line.lastchar :
+						    el->el_line.buffer;
+					} else
+						el->el_line.cursor +=
+						    newdir ==
+						    ED_SEARCH_PREV_HISTORY ?
+						    -1 : 1;
+				}
+#ifdef ANCHOR
+				el->el_search.patbuf[el->el_search.patlen++] =
+				    '.';
+				el->el_search.patbuf[el->el_search.patlen++] =
+				    '*';
+#endif
+				el->el_search.patbuf[el->el_search.patlen] =
+				    '\0';
+				if (el->el_line.cursor < el->el_line.buffer ||
+				    el->el_line.cursor > el->el_line.lastchar ||
+				    (ret = ce_search_line(el, newdir))
+				    == CC_ERROR) {
+					/* avoid c_setpat */
+					el->el_state.lastcmd =
+					    (el_action_t) newdir;
+					ret = (el_action_t)
+					    (newdir == ED_SEARCH_PREV_HISTORY ?
+					    ed_search_prev_history(el, 0) :
+					    ed_search_next_history(el, 0));
+					if (ret != CC_ERROR) {
+						el->el_line.cursor = newdir ==
+						    ED_SEARCH_PREV_HISTORY ?
+						    el->el_line.lastchar :
+						    el->el_line.buffer;
+						(void) ce_search_line(el,
+						    newdir);
+					}
+				}
+				el->el_search.patlen -= LEN;
+				el->el_search.patbuf[el->el_search.patlen] =
+				    '\0';
+				if (ret == CC_ERROR) {
+					terminal_beep(el);
+					if (el->el_history.eventno !=
+					    ohisteventno) {
+						el->el_history.eventno =
+						    ohisteventno;
+						if (hist_get(el) == CC_ERROR)
+							return CC_ERROR;
+					}
+					el->el_line.cursor = ocursor;
+					pchar = '?';
+				} else {
+					pchar = ':';
+				}
+			}
+			ret = ce_inc_search(el, newdir);
+
+			if (ret == CC_ERROR && pchar == '?' && oldpchar == ':')
+				/*
+				 * break abort of failed search at last
+				 * non-failed
+				 */
+				ret = CC_NORM;
+
+		}
+		if (ret == CC_NORM || (ret == CC_ERROR && oldpatlen == 0)) {
+			/* restore on normal return or error exit */
+			pchar = oldpchar;
+			el->el_search.patlen = oldpatlen;
+			if (el->el_history.eventno != ohisteventno) {
+				el->el_history.eventno = ohisteventno;
+				if (hist_get(el) == CC_ERROR)
+					return CC_ERROR;
+			}
+			el->el_line.cursor = ocursor;
+			if (ret == CC_ERROR)
+				re_refresh(el);
+		}
+		if (done || ret != CC_NORM)
+			return ret;
+	}
+}
+
+
+/* cv_search():
+ *	Vi search.
+ */
+protected el_action_t
+cv_search(EditLine *el, int dir)
+{
+	Char ch;
+	Char tmpbuf[EL_BUFSIZ];
+	ssize_t tmplen;
+
+#ifdef ANCHOR
+	tmpbuf[0] = '.';
+	tmpbuf[1] = '*';
+#endif
+	tmplen = LEN;
+
+	el->el_search.patdir = dir;
+
+	tmplen = c_gets(el, &tmpbuf[LEN],
+		dir == ED_SEARCH_PREV_HISTORY ? STR("\n/") : STR("\n?") );
+	if (tmplen == -1)
+		return CC_REFRESH;
+
+	tmplen += LEN;
+	ch = tmpbuf[tmplen];
+	tmpbuf[tmplen] = '\0';
+
+	if (tmplen == LEN) {
+		/*
+		 * Use the old pattern, but wild-card it.
+		 */
+		if (el->el_search.patlen == 0) {
+			re_refresh(el);
+			return CC_ERROR;
+		}
+#ifdef ANCHOR
+		if (el->el_search.patbuf[0] != '.' &&
+		    el->el_search.patbuf[0] != '*') {
+			(void) Strncpy(tmpbuf, el->el_search.patbuf,
+			    sizeof(tmpbuf) / sizeof(*tmpbuf) - 1);
+			el->el_search.patbuf[0] = '.';
+			el->el_search.patbuf[1] = '*';
+			(void) Strncpy(&el->el_search.patbuf[2], tmpbuf,
+			    EL_BUFSIZ - 3);
+			el->el_search.patlen++;
+			el->el_search.patbuf[el->el_search.patlen++] = '.';
+			el->el_search.patbuf[el->el_search.patlen++] = '*';
+			el->el_search.patbuf[el->el_search.patlen] = '\0';
+		}
+#endif
+	} else {
+#ifdef ANCHOR
+		tmpbuf[tmplen++] = '.';
+		tmpbuf[tmplen++] = '*';
+#endif
+		tmpbuf[tmplen] = '\0';
+		(void) Strncpy(el->el_search.patbuf, tmpbuf, EL_BUFSIZ - 1);
+		el->el_search.patlen = (size_t)tmplen;
+	}
+	el->el_state.lastcmd = (el_action_t) dir;	/* avoid c_setpat */
+	el->el_line.cursor = el->el_line.lastchar = el->el_line.buffer;
+	if ((dir == ED_SEARCH_PREV_HISTORY ? ed_search_prev_history(el, 0) :
+	    ed_search_next_history(el, 0)) == CC_ERROR) {
+		re_refresh(el);
+		return CC_ERROR;
+	}
+	if (ch == 0033) {
+		re_refresh(el);
+		return ed_newline(el, 0);
+	}
+	return CC_REFRESH;
+}
+
+
+/* ce_search_line():
+ *	Look for a pattern inside a line
+ */
+protected el_action_t
+ce_search_line(EditLine *el, int dir)
+{
+	Char *cp = el->el_line.cursor;
+	Char *pattern = el->el_search.patbuf;
+	Char oc, *ocp;
+#ifdef ANCHOR
+	ocp = &pattern[1];
+	oc = *ocp;
+	*ocp = '^';
+#else
+	ocp = pattern;
+	oc = *ocp;
+#endif
+
+	if (dir == ED_SEARCH_PREV_HISTORY) {
+		for (; cp >= el->el_line.buffer; cp--) {
+			if (el_match(cp, ocp)) {
+				*ocp = oc;
+				el->el_line.cursor = cp;
+				return CC_NORM;
+			}
+		}
+		*ocp = oc;
+		return CC_ERROR;
+	} else {
+		for (; *cp != '\0' && cp < el->el_line.limit; cp++) {
+			if (el_match(cp, ocp)) {
+				*ocp = oc;
+				el->el_line.cursor = cp;
+				return CC_NORM;
+			}
+		}
+		*ocp = oc;
+		return CC_ERROR;
+	}
+}
+
+
+/* cv_repeat_srch():
+ *	Vi repeat search
+ */
+protected el_action_t
+cv_repeat_srch(EditLine *el, Int c)
+{
+
+#ifdef SDEBUG
+	(void) fprintf(el->el_errfile, "dir %d patlen %d patbuf %s\n",
+	    c, el->el_search.patlen, ct_encode_string(el->el_search.patbuf));
+#endif
+
+	el->el_state.lastcmd = (el_action_t) c;	/* Hack to stop c_setpat */
+	el->el_line.lastchar = el->el_line.buffer;
+
+	switch (c) {
+	case ED_SEARCH_NEXT_HISTORY:
+		return ed_search_next_history(el, 0);
+	case ED_SEARCH_PREV_HISTORY:
+		return ed_search_prev_history(el, 0);
+	default:
+		return CC_ERROR;
+	}
+}
+
+
+/* cv_csearch():
+ *	Vi character search
+ */
+protected el_action_t
+cv_csearch(EditLine *el, int direction, Int ch, int count, int tflag)
+{
+	Char *cp;
+
+	if (ch == 0)
+		return CC_ERROR;
+
+	if (ch == (Int)-1) {
+		Char c;
+		if (FUN(el,getc)(el, &c) != 1)
+			return ed_end_of_file(el, 0);
+		ch = c;
+	}
+
+	/* Save for ';' and ',' commands */
+	el->el_search.chacha = ch;
+	el->el_search.chadir = direction;
+	el->el_search.chatflg = (char)tflag;
+
+	cp = el->el_line.cursor;
+	while (count--) {
+		if ((Int)*cp == ch)
+			cp += direction;
+		for (;;cp += direction) {
+			if (cp >= el->el_line.lastchar)
+				return CC_ERROR;
+			if (cp < el->el_line.buffer)
+				return CC_ERROR;
+			if ((Int)*cp == ch)
+				break;
+		}
+	}
+
+	if (tflag)
+		cp -= direction;
+
+	el->el_line.cursor = cp;
+
+	if (el->el_chared.c_vcmd.action != NOP) {
+		if (direction > 0)
+			el->el_line.cursor++;
+		cv_delfini(el);
+		return CC_REFRESH;
+	}
+	return CC_CURSOR;
+}

src/search.h

@@ -0,0 +1,73 @@
+/*	$NetBSD: search.h,v 1.9 2009/12/30 22:37:40 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)search.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.search.h: Line and history searching utilities
+ */
+#ifndef _h_el_search
+#define	_h_el_search
+
+#include "histedit.h"
+
+typedef struct el_search_t {
+	Char	*patbuf;		/* The pattern buffer		*/
+	size_t	 patlen;		/* Length of the pattern buffer	*/
+	int	 patdir;		/* Direction of the last search	*/
+	int	 chadir;		/* Character search direction	*/
+	/*
+	 * 8519376: Use an unnamed union to force the size of el_search_t to
+	 * be the same, independent of the size of Char.
+	 */
+	union {
+	    Char	chacha;		/* Character we are looking for	*/
+	    wchar_t	dummy;
+	};
+	char	 chatflg;		/* 0 if f, 1 if t */
+} el_search_t;
+
+
+protected int		el_match(const Char *, const Char *);
+protected int		search_init(EditLine *);
+protected void		search_end(EditLine *);
+protected int		c_hmatch(EditLine *, const Char *);
+protected void		c_setpat(EditLine *);
+protected el_action_t	ce_inc_search(EditLine *, int);
+protected el_action_t	cv_search(EditLine *, int);
+protected el_action_t	ce_search_line(EditLine *, int);
+protected el_action_t	cv_repeat_srch(EditLine *, Int);
+protected el_action_t	cv_csearch(EditLine *, int, Int, int, int);
+
+#endif /* _h_el_search */

src/shlib_version

@@ -0,0 +1,5 @@
+#	$NetBSD: shlib_version,v 1.18 2009/01/11 03:07:48 christos Exp $
+#	Remember to update distrib/sets/lists/base/shl.* when changing
+#
+major=3
+minor=0

src/sig.c

@@ -0,0 +1,200 @@
+/*	$NetBSD: sig.c,v 1.17 2011/07/28 20:50:55 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#if !defined(lint) && !defined(SCCSID)
+#if 0
+static char sccsid[] = "@(#)sig.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: sig.c,v 1.17 2011/07/28 20:50:55 christos Exp $");
+#endif
+#endif /* not lint && not SCCSID */
+
+/*
+ * sig.c: Signal handling stuff.
+ *	  our policy is to trap all signals, set a good state
+ *	  and pass the ball to our caller.
+ */
+#include "el.h"
+#include <stdlib.h>
+
+private EditLine *sel = NULL;
+
+private const int sighdl[] = {
+#define	_DO(a)	(a),
+	ALLSIGS
+#undef	_DO
+	- 1
+};
+
+private void sig_handler(int);
+
+/* sig_handler():
+ *	This is the handler called for all signals
+ *	XXX: we cannot pass any data so we just store the old editline
+ *	state in a private variable
+ */
+private void
+sig_handler(int signo)
+{
+	int i;
+	sigset_t nset, oset;
+
+	(void) sigemptyset(&nset);
+	(void) sigaddset(&nset, signo);
+	(void) sigprocmask(SIG_BLOCK, &nset, &oset);
+
+	sel->el_signal->sig_no = signo;
+
+	switch (signo) {
+	case SIGCONT:
+		tty_rawmode(sel);
+		if (ed_redisplay(sel, 0) == CC_REFRESH)
+			re_refresh(sel);
+		terminal__flush(sel);
+		break;
+
+	case SIGWINCH:
+		el_resize(sel);
+		break;
+
+	default:
+		tty_cookedmode(sel);
+		break;
+	}
+
+	for (i = 0; sighdl[i] != -1; i++)
+		if (signo == sighdl[i])
+			break;
+
+	(void) sigaction(signo, &sel->el_signal->sig_action[i], NULL);
+	sel->el_signal->sig_action[i].sa_handler = SIG_ERR;
+	sel->el_signal->sig_action[i].sa_flags = 0;
+	sigemptyset(&sel->el_signal->sig_action[i].sa_mask);
+	(void) sigprocmask(SIG_SETMASK, &oset, NULL);
+	(void) kill(0, signo);
+}
+
+
+/* sig_init():
+ *	Initialize all signal stuff
+ */
+protected int
+sig_init(EditLine *el)
+{
+	size_t i;
+	sigset_t *nset, oset;
+
+	el->el_signal = el_malloc(sizeof(*el->el_signal));
+	if (el->el_signal == NULL)
+		return -1;
+
+	nset = &el->el_signal->sig_set;
+	(void) sigemptyset(nset);
+#define	_DO(a) (void) sigaddset(nset, a);
+	ALLSIGS
+#undef	_DO
+	(void) sigprocmask(SIG_BLOCK, nset, &oset);
+
+	for (i = 0; sighdl[i] != -1; i++) {
+		el->el_signal->sig_action[i].sa_handler = SIG_ERR;
+		el->el_signal->sig_action[i].sa_flags = 0;
+		sigemptyset(&el->el_signal->sig_action[i].sa_mask);
+	}
+
+	(void) sigprocmask(SIG_SETMASK, &oset, NULL);
+
+	return 0;
+}
+
+
+/* sig_end():
+ *	Clear all signal stuff
+ */
+protected void
+sig_end(EditLine *el)
+{
+
+	el_free(el->el_signal);
+	el->el_signal = NULL;
+}
+
+
+/* sig_set():
+ *	set all the signal handlers
+ */
+protected void
+sig_set(EditLine *el)
+{
+	size_t i;
+	sigset_t oset;
+	struct sigaction osa, nsa;
+
+	nsa.sa_handler = sig_handler;
+	nsa.sa_flags = 0;
+	sigemptyset(&nsa.sa_mask);
+
+	(void) sigprocmask(SIG_BLOCK, &el->el_signal->sig_set, &oset);
+
+	/* 13009629: set sel before signal handlers just in case */
+	sel = el;
+	for (i = 0; sighdl[i] != -1; i++) {
+		/* This could happen if we get interrupted */
+		if (sigaction(sighdl[i], &nsa, &osa) != -1 &&
+		    osa.sa_handler != sig_handler)
+			el->el_signal->sig_action[i] = osa;
+	}
+	(void) sigprocmask(SIG_SETMASK, &oset, NULL);
+}
+
+
+/* sig_clr():
+ *	clear all the signal handlers
+ */
+protected void
+sig_clr(EditLine *el)
+{
+	size_t i;
+	sigset_t oset;
+
+	(void) sigprocmask(SIG_BLOCK, &el->el_signal->sig_set, &oset);
+
+	for (i = 0; sighdl[i] != -1; i++)
+		if (el->el_signal->sig_action[i].sa_handler != SIG_ERR)
+			(void)sigaction(sighdl[i],
+			    &el->el_signal->sig_action[i], NULL);
+
+	/* 13009629: no longer clear sel, since a signal handler may still be running in another thread */
+	(void)sigprocmask(SIG_SETMASK, &oset, NULL);
+}

src/sig.h

@@ -0,0 +1,72 @@
+/*	$NetBSD: sig.h,v 1.8 2009/02/19 15:20:22 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)sig.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.sig.h: Signal handling functions
+ */
+#ifndef _h_el_sig
+#define	_h_el_sig
+
+#include <signal.h>
+
+#include "histedit.h"
+
+/*
+ * Define here all the signals we are going to handle
+ * The _DO macro is used to iterate in the source code
+ */
+#define	ALLSIGS		\
+	_DO(SIGINT)	\
+	_DO(SIGTSTP)	\
+	_DO(SIGQUIT)	\
+	_DO(SIGHUP)	\
+	_DO(SIGTERM)	\
+	_DO(SIGCONT)	\
+	_DO(SIGWINCH)
+#define ALLSIGSNO	7
+
+typedef struct {
+	struct sigaction sig_action[ALLSIGSNO];
+	sigset_t sig_set;
+	volatile sig_atomic_t sig_no;
+} *el_signal_t;
+
+protected void	sig_end(EditLine*);
+protected int	sig_init(EditLine*);
+protected void	sig_set(EditLine*);
+protected void	sig_clr(EditLine*);
+
+#endif /* _h_el_sig */

src/sys.h

@@ -0,0 +1,142 @@
+/*	$NetBSD: sys.h,v 1.17 2011/09/28 14:08:04 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)sys.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * sys.h: Put all the stupid compiler and system dependencies here...
+ */
+#ifndef _h_sys
+#define	_h_sys
+
+#ifdef HAVE_SYS_CDEFS_H
+#include <sys/cdefs.h>
+#endif
+
+#if !defined(__attribute__) && (defined(__cplusplus) || !defined(__GNUC__)  || __GNUC__ == 2 && __GNUC_MINOR__ < 8)
+# define __attribute__(A)
+#endif
+
+#ifndef _DIAGASSERT
+# define _DIAGASSERT(x)
+#endif
+
+#ifndef __BEGIN_DECLS
+# ifdef  __cplusplus
+#  define __BEGIN_DECLS  extern "C" {
+#  define __END_DECLS    }
+# else
+#  define __BEGIN_DECLS
+#  define __END_DECLS
+# endif
+#endif
+ 
+#ifndef public
+# define public		/* Externally visible functions/variables */
+#endif
+
+#ifndef private
+# define private	static	/* Always hidden internals */
+#endif
+
+#ifndef protected
+# define protected	/* Redefined from elsewhere to "static" */
+			/* When we want to hide everything	*/
+#endif
+
+#ifndef __arraycount
+# define __arraycount(a) (sizeof(a) / sizeof(*(a)))
+#endif
+
+#ifndef _PTR_T
+# define _PTR_T
+typedef void	*ptr_t;
+#endif
+
+#ifndef _IOCTL_T
+# define _IOCTL_T
+typedef void	*ioctl_t;
+#endif
+
+#include <stdio.h>
+
+#ifndef HAVE_STRLCAT
+#define	strlcat libedit_strlcat
+size_t	strlcat(char *dst, const char *src, size_t size);
+#endif
+
+#ifndef HAVE_STRLCPY
+#define	strlcpy libedit_strlcpy
+size_t	strlcpy(char *dst, const char *src, size_t size);
+#endif
+
+#ifndef HAVE_FGETLN
+#define	fgetln libedit_fgetln
+char	*fgetln(FILE *fp, size_t *len);
+#endif
+
+#ifndef HAVE_WCSDUP
+#include <wchar.h>
+wchar_t *wcsdup(const wchar_t *);
+#endif
+
+#ifndef _DIAGASSERT
+#define _DIAGASSERT(x)
+#endif
+
+#ifndef __RCSID
+#define __RCSID(x)
+#endif
+
+#ifndef HAVE_U_INT32_T
+typedef unsigned int	u_int32_t;
+#endif
+
+#ifndef SIZE_T_MAX
+#define SIZE_T_MAX	((size_t)-1)
+#endif
+
+#define	REGEX		/* Use POSIX.2 regular expression functions */
+#undef	REGEXP		/* Use UNIX V8 regular expression functions */
+
+#if defined(__sun)
+extern int tgetent(char *, const char *);
+extern int tgetflag(char *);
+extern int tgetnum(char *);
+extern int tputs(const char *, int, int (*)(int));
+extern char* tgoto(const char*, int, int);
+extern char* tgetstr(char*, char**);
+#endif
+
+#endif /* _h_sys */

src/terminal.h

@@ -0,0 +1,135 @@
+/*	$NetBSD: terminal.h,v 1.4 2012/03/24 20:09:30 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)term.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.term.h: Termcap header
+ */
+#ifndef _h_el_terminal
+#define	_h_el_terminal
+
+#include "histedit.h"
+
+typedef struct {		/* Symbolic function key bindings	*/
+	const Char	*name;	/* name of the key			*/
+	int		 key;	/* Index in termcap table		*/
+	keymacro_value_t	 fun;	/* Function bound to it			*/
+	int		 type;	/* Type of function			*/
+} funckey_t;
+
+typedef struct {
+	const char *t_name;		/* the terminal name	*/
+	coord_t	  t_size;		/* # lines and cols	*/
+	int	  t_flags;
+#define	TERM_CAN_INSERT		0x001	/* Has insert cap	*/
+#define	TERM_CAN_DELETE		0x002	/* Has delete cap	*/
+#define	TERM_CAN_CEOL		0x004	/* Has CEOL cap		*/
+#define	TERM_CAN_TAB		0x008	/* Can use tabs		*/
+#define	TERM_CAN_ME		0x010	/* Can turn all attrs.	*/
+#define	TERM_CAN_UP		0x020	/* Can move up		*/
+#define	TERM_HAS_META		0x040	/* Has a meta key	*/
+#define	TERM_HAS_AUTO_MARGINS	0x080	/* Has auto margins	*/
+#define	TERM_HAS_MAGIC_MARGINS	0x100	/* Has magic margins	*/
+	char	 *t_buf;		/* Termcap buffer	*/
+	size_t	  t_loc;		/* location used	*/
+	char	**t_str;		/* termcap strings	*/
+	int	 *t_val;		/* termcap values	*/
+	char	 *t_cap;		/* Termcap buffer	*/
+	funckey_t	 *t_fkey;		/* Array of keys	*/
+} el_terminal_t;
+
+/*
+ * fKey indexes
+ */
+#define	A_K_DN		0
+#define	A_K_UP		1
+#define	A_K_LT		2
+#define	A_K_RT		3
+#define	A_K_HO		4
+#define	A_K_EN		5
+#define	A_K_DE		6
+#define	A_K_NKEYS	7
+
+#ifdef __sun
+extern int tgetent(char *, const char *);
+extern int tgetflag(char *);
+extern int tgetnum(char *);
+extern int tputs(const char *, int, int (*)(int));
+extern char* tgoto(const char*, int, int);
+extern char* tgetstr(char*, char**);
+#endif
+
+protected void	terminal_move_to_line(EditLine *, int);
+protected void	terminal_move_to_char(EditLine *, int);
+protected void	terminal_clear_EOL(EditLine *, int);
+protected void	terminal_overwrite(EditLine *, const Char *, size_t);
+protected void	terminal_insertwrite(EditLine *, Char *, int);
+protected void	terminal_deletechars(EditLine *, int);
+protected void	terminal_clear_screen(EditLine *);
+protected void	terminal_beep(EditLine *);
+protected int	terminal_change_size(EditLine *, int, int);
+protected int	terminal_get_size(EditLine *, int *, int *);
+protected int	terminal_init(EditLine *);
+protected void	terminal_bind_arrow(EditLine *);
+protected void	terminal_print_arrow(EditLine *, const Char *);
+protected int	terminal_clear_arrow(EditLine *, const Char *);
+protected int	terminal_set_arrow(EditLine *, const Char *, keymacro_value_t *, int);
+protected void	terminal_end(EditLine *);
+protected void	terminal_get(EditLine *, const char **);
+protected int	terminal_set(EditLine *, const char *);
+protected int	terminal_settc(EditLine *, int, const Char **);
+protected int	terminal_gettc(EditLine *, int, char **);
+protected int	terminal_telltc(EditLine *, int, const Char **);
+protected int	terminal_echotc(EditLine *, int, const Char **);
+protected void	terminal_writec(EditLine *, Int);
+protected int	terminal__putc(EditLine *, Int);
+protected void	terminal__flush(EditLine *);
+
+/*
+ * Easy access macros
+ */
+#define	EL_FLAGS	(el)->el_terminal.t_flags
+
+#define	EL_CAN_INSERT		(EL_FLAGS & TERM_CAN_INSERT)
+#define	EL_CAN_DELETE		(EL_FLAGS & TERM_CAN_DELETE)
+#define	EL_CAN_CEOL		(EL_FLAGS & TERM_CAN_CEOL)
+#define	EL_CAN_TAB		(EL_FLAGS & TERM_CAN_TAB)
+#define	EL_CAN_ME		(EL_FLAGS & TERM_CAN_ME)
+#define EL_CAN_UP		(EL_FLAGS & TERM_CAN_UP)
+#define	EL_HAS_META		(EL_FLAGS & TERM_HAS_META)
+#define	EL_HAS_AUTO_MARGINS	(EL_FLAGS & TERM_HAS_AUTO_MARGINS)
+#define	EL_HAS_MAGIC_MARGINS	(EL_FLAGS & TERM_HAS_MAGIC_MARGINS)
+
+#endif /* _h_el_terminal */

src/tokenizer.c

@@ -0,0 +1,453 @@
+/*	$NetBSD: tokenizer.c,v 1.21 2011/08/16 16:25:15 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NARROWCHAR
+#include "config.h"
+#endif
+
+#if !defined(lint) && !defined(SCCSID)
+#if 0
+static char sccsid[] = "@(#)tokenizer.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: tokenizer.c,v 1.21 2011/08/16 16:25:15 christos Exp $");
+#endif
+#endif /* not lint && not SCCSID */
+
+/* We build this file twice, once as NARROW, once as WIDE. */
+/*
+ * tokenize.c: Bourne shell like tokenizer
+ */
+#include <string.h>
+#include <stdlib.h>
+#include "histedit.h"
+#include "chartype.h"
+
+typedef enum {
+	Q_none, Q_single, Q_double, Q_one, Q_doubleone
+} quote_t;
+
+#define	TOK_KEEP	1
+#define	TOK_EAT		2
+
+#define	WINCR		20
+#define	AINCR		10
+
+#define	IFS		STR("\t \n")
+
+#define	tok_malloc(a)		malloc(a)
+#define	tok_free(a)		free(a)
+#define	tok_realloc(a, b)	realloc(a, b)
+#define	tok_strdup(a)		Strdup(a)
+
+
+struct TYPE(tokenizer) {
+	Char	*ifs;		/* In field separator			 */
+	size_t	 argc, amax;	/* Current and maximum number of args	 */
+	Char   **argv;		/* Argument list			 */
+	Char	*wptr, *wmax;	/* Space and limit on the word buffer	 */
+	Char	*wstart;	/* Beginning of next word		 */
+	Char	*wspace;	/* Space of word buffer			 */
+	quote_t	 quote;		/* Quoting state			 */
+	int	 flags;		/* flags;				 */
+};
+
+
+private void FUN(tok,finish)(TYPE(Tokenizer) *);
+
+
+/* FUN(tok,finish)():
+ *	Finish a word in the tokenizer.
+ */
+private void
+FUN(tok,finish)(TYPE(Tokenizer) *tok)
+{
+
+	*tok->wptr = '\0';
+	if ((tok->flags & TOK_KEEP) || tok->wptr != tok->wstart) {
+		tok->argv[tok->argc++] = tok->wstart;
+		tok->argv[tok->argc] = NULL;
+		tok->wstart = ++tok->wptr;
+	}
+	tok->flags &= ~TOK_KEEP;
+}
+
+
+/* FUN(tok,init)():
+ *	Initialize the tokenizer
+ */
+public TYPE(Tokenizer) *
+FUN(tok,init)(const Char *ifs)
+{
+	TYPE(Tokenizer) *tok = tok_malloc(sizeof(*tok));
+
+	if (tok == NULL)
+		return NULL;
+	tok->ifs = tok_strdup(ifs ? ifs : IFS);
+	if (tok->ifs == NULL) {
+		tok_free(tok);
+		return NULL;
+	}
+	tok->argc = 0;
+	tok->amax = AINCR;
+	tok->argv = tok_malloc(sizeof(*tok->argv) * tok->amax);
+	if (tok->argv == NULL) {
+		tok_free(tok->ifs);
+		tok_free(tok);
+		return NULL;
+	}
+	tok->argv[0] = NULL;
+	tok->wspace = tok_malloc(WINCR * sizeof(*tok->wspace));
+	if (tok->wspace == NULL) {
+		tok_free(tok->argv);
+		tok_free(tok->ifs);
+		tok_free(tok);
+		return NULL;
+	}
+	tok->wmax = tok->wspace + WINCR;
+	tok->wstart = tok->wspace;
+	tok->wptr = tok->wspace;
+	tok->flags = 0;
+	tok->quote = Q_none;
+
+	return tok;
+}
+
+
+/* FUN(tok,reset)():
+ *	Reset the tokenizer
+ */
+public void
+FUN(tok,reset)(TYPE(Tokenizer) *tok)
+{
+
+	tok->argc = 0;
+	tok->wstart = tok->wspace;
+	tok->wptr = tok->wspace;
+	tok->flags = 0;
+	tok->quote = Q_none;
+}
+
+
+/* FUN(tok,end)():
+ *	Clean up
+ */
+public void
+FUN(tok,end)(TYPE(Tokenizer) *tok)
+{
+
+	tok_free(tok->ifs);
+	tok_free(tok->wspace);
+	tok_free(tok->argv);
+	tok_free(tok);
+}
+
+
+
+/* FUN(tok,line)():
+ *	Bourne shell (sh(1)) like tokenizing
+ *	Arguments:
+ *		tok	current tokenizer state (setup with FUN(tok,init)())
+ *		line	line to parse
+ *	Returns:
+ *		-1	Internal error
+ *		 3	Quoted return
+ *		 2	Unmatched double quote
+ *		 1	Unmatched single quote
+ *		 0	Ok
+ *	Modifies (if return value is 0):
+ *		argc	number of arguments
+ *		argv	argument array
+ *		cursorc	if !NULL, argv element containing cursor
+ *		cursorv	if !NULL, offset in argv[cursorc] of cursor
+ */
+public int
+FUN(tok,line)(TYPE(Tokenizer) *tok, const TYPE(LineInfo) *line,
+    int *argc, const Char ***argv, int *cursorc, int *cursoro)
+{
+	const Char *ptr;
+	int cc, co;
+
+	cc = co = -1;
+	ptr = line->buffer;
+	for (ptr = line->buffer; ;ptr++) {
+		if (ptr >= line->lastchar)
+			ptr = STR("");
+		if (ptr == line->cursor) {
+			cc = (int)tok->argc;
+			co = (int)(tok->wptr - tok->wstart);
+		}
+		switch (*ptr) {
+		case '\'':
+			tok->flags |= TOK_KEEP;
+			tok->flags &= ~TOK_EAT;
+			switch (tok->quote) {
+			case Q_none:
+				tok->quote = Q_single;	/* Enter single quote
+							 * mode */
+				break;
+
+			case Q_single:	/* Exit single quote mode */
+				tok->quote = Q_none;
+				break;
+
+			case Q_one:	/* Quote this ' */
+				tok->quote = Q_none;
+				*tok->wptr++ = *ptr;
+				break;
+
+			case Q_double:	/* Stay in double quote mode */
+				*tok->wptr++ = *ptr;
+				break;
+
+			case Q_doubleone:	/* Quote this ' */
+				tok->quote = Q_double;
+				*tok->wptr++ = *ptr;
+				break;
+
+			default:
+				return -1;
+			}
+			break;
+
+		case '"':
+			tok->flags &= ~TOK_EAT;
+			tok->flags |= TOK_KEEP;
+			switch (tok->quote) {
+			case Q_none:	/* Enter double quote mode */
+				tok->quote = Q_double;
+				break;
+
+			case Q_double:	/* Exit double quote mode */
+				tok->quote = Q_none;
+				break;
+
+			case Q_one:	/* Quote this " */
+				tok->quote = Q_none;
+				*tok->wptr++ = *ptr;
+				break;
+
+			case Q_single:	/* Stay in single quote mode */
+				*tok->wptr++ = *ptr;
+				break;
+
+			case Q_doubleone:	/* Quote this " */
+				tok->quote = Q_double;
+				*tok->wptr++ = *ptr;
+				break;
+
+			default:
+				return -1;
+			}
+			break;
+
+		case '\\':
+			tok->flags |= TOK_KEEP;
+			tok->flags &= ~TOK_EAT;
+			switch (tok->quote) {
+			case Q_none:	/* Quote next character */
+				tok->quote = Q_one;
+				break;
+
+			case Q_double:	/* Quote next character */
+				tok->quote = Q_doubleone;
+				break;
+
+			case Q_one:	/* Quote this, restore state */
+				*tok->wptr++ = *ptr;
+				tok->quote = Q_none;
+				break;
+
+			case Q_single:	/* Stay in single quote mode */
+				*tok->wptr++ = *ptr;
+				break;
+
+			case Q_doubleone:	/* Quote this \ */
+				tok->quote = Q_double;
+				*tok->wptr++ = *ptr;
+				break;
+
+			default:
+				return -1;
+			}
+			break;
+
+		case '\n':
+			tok->flags &= ~TOK_EAT;
+			switch (tok->quote) {
+			case Q_none:
+				goto tok_line_outok;
+
+			case Q_single:
+			case Q_double:
+				*tok->wptr++ = *ptr;	/* Add the return */
+				break;
+
+			case Q_doubleone:   /* Back to double, eat the '\n' */
+				tok->flags |= TOK_EAT;
+				tok->quote = Q_double;
+				break;
+
+			case Q_one:	/* No quote, more eat the '\n' */
+				tok->flags |= TOK_EAT;
+				tok->quote = Q_none;
+				break;
+
+			default:
+				return 0;
+			}
+			break;
+
+		case '\0':
+			switch (tok->quote) {
+			case Q_none:
+				/* Finish word and return */
+				if (tok->flags & TOK_EAT) {
+					tok->flags &= ~TOK_EAT;
+					return 3;
+				}
+				goto tok_line_outok;
+
+			case Q_single:
+				return 1;
+
+			case Q_double:
+				return 2;
+
+			case Q_doubleone:
+				tok->quote = Q_double;
+				*tok->wptr++ = *ptr;
+				break;
+
+			case Q_one:
+				tok->quote = Q_none;
+				*tok->wptr++ = *ptr;
+				break;
+
+			default:
+				return -1;
+			}
+			break;
+
+		default:
+			tok->flags &= ~TOK_EAT;
+			switch (tok->quote) {
+			case Q_none:
+				if (Strchr(tok->ifs, *ptr) != NULL)
+					FUN(tok,finish)(tok);
+				else
+					*tok->wptr++ = *ptr;
+				break;
+
+			case Q_single:
+			case Q_double:
+				*tok->wptr++ = *ptr;
+				break;
+
+
+			case Q_doubleone:
+				*tok->wptr++ = '\\';
+				tok->quote = Q_double;
+				*tok->wptr++ = *ptr;
+				break;
+
+			case Q_one:
+				tok->quote = Q_none;
+				*tok->wptr++ = *ptr;
+				break;
+
+			default:
+				return -1;
+
+			}
+			break;
+		}
+
+		if (tok->wptr >= tok->wmax - 4) {
+			size_t size = (size_t)(tok->wmax - tok->wspace + WINCR);
+			Char *s = tok_realloc(tok->wspace,
+			    size * sizeof(*s));
+			if (s == NULL)
+				return -1;
+
+			if (s != tok->wspace) {
+				size_t i;
+				for (i = 0; i < tok->argc; i++) {
+				    tok->argv[i] =
+					(tok->argv[i] - tok->wspace) + s;
+				}
+				tok->wptr = (tok->wptr - tok->wspace) + s;
+				tok->wstart = (tok->wstart - tok->wspace) + s;
+				tok->wspace = s;
+			}
+			tok->wmax = s + size;
+		}
+		if (tok->argc >= tok->amax - 4) {
+			Char **p;
+			tok->amax += AINCR;
+			p = tok_realloc(tok->argv, tok->amax * sizeof(*p));
+			if (p == NULL)
+				return -1;
+			tok->argv = p;
+		}
+	}
+ tok_line_outok:
+	if (cc == -1 && co == -1) {
+		cc = (int)tok->argc;
+		co = (int)(tok->wptr - tok->wstart);
+	}
+	if (cursorc != NULL)
+		*cursorc = cc;
+	if (cursoro != NULL)
+		*cursoro = co;
+	FUN(tok,finish)(tok);
+	*argv = (const Char **)tok->argv;
+	*argc = (int)tok->argc;
+	return 0;
+}
+
+/* FUN(tok,str)():
+ *	Simpler version of tok_line, taking a NUL terminated line
+ *	and splitting into words, ignoring cursor state.
+ */
+public int
+FUN(tok,str)(TYPE(Tokenizer) *tok, const Char *line, int *argc,
+    const Char ***argv)
+{
+	TYPE(LineInfo) li;
+
+	memset(&li, 0, sizeof(li));
+	li.buffer = line;
+	li.cursor = li.lastchar = Strchr(line, '\0');
+	return FUN(tok,line(tok, &li, argc, argv, NULL, NULL));
+}

src/tty.h

@@ -0,0 +1,481 @@
+/*	$NetBSD: tty.h,v 1.14 2012/05/15 15:59:01 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)tty.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.tty.h: Local terminal header
+ */
+#ifndef _h_el_tty
+#define	_h_el_tty
+
+#include "sys.h"
+#include "histedit.h"
+#include <termios.h>
+#include <unistd.h>
+
+/* Define our own since everyone gets it wrong! */
+#define	CONTROL(A)	((A) & 037)
+
+/*
+ * Aix compatible names
+ */
+# if defined(VWERSE) && !defined(VWERASE)
+#  define VWERASE VWERSE
+# endif /* VWERSE && !VWERASE */
+
+# if defined(VDISCRD) && !defined(VDISCARD)
+#  define VDISCARD VDISCRD
+# endif /* VDISCRD && !VDISCARD */
+
+# if defined(VFLUSHO) && !defined(VDISCARD)
+#  define VDISCARD VFLUSHO
+# endif  /* VFLUSHO && VDISCARD */
+
+# if defined(VSTRT) && !defined(VSTART)
+#  define VSTART VSTRT
+# endif /* VSTRT && ! VSTART */
+
+# if defined(VSTAT) && !defined(VSTATUS)
+#  define VSTATUS VSTAT
+# endif /* VSTAT && ! VSTATUS */
+
+# ifndef ONLRET
+#  define ONLRET 0
+# endif /* ONLRET */
+
+# ifndef TAB3
+#  ifdef OXTABS
+#   define TAB3 OXTABS
+#  else
+#   define TAB3 0
+#  endif /* OXTABS */
+# endif /* !TAB3 */
+
+# if defined(OXTABS) && !defined(XTABS)
+#  define XTABS OXTABS
+# endif /* OXTABS && !XTABS */
+
+# ifndef ONLCR
+#  define ONLCR 0
+# endif /* ONLCR */
+
+# ifndef IEXTEN
+#  define IEXTEN 0
+# endif /* IEXTEN */
+
+# ifndef ECHOCTL
+#  define ECHOCTL 0
+# endif /* ECHOCTL */
+
+# ifndef PARENB
+#  define PARENB 0
+# endif /* PARENB */
+
+# ifndef EXTPROC
+#  define EXTPROC 0
+# endif /* EXTPROC */
+
+# ifndef FLUSHO
+#  define FLUSHO  0
+# endif /* FLUSHO */
+
+
+# if defined(VDISABLE) && !defined(_POSIX_VDISABLE)
+#  define _POSIX_VDISABLE VDISABLE
+# endif /* VDISABLE && ! _POSIX_VDISABLE */
+
+/*
+ * Work around ISC's definition of IEXTEN which is
+ * XCASE!
+ */
+# ifdef ISC
+#  if defined(IEXTEN) && defined(XCASE)
+#   if IEXTEN == XCASE
+#    undef IEXTEN
+#    define IEXTEN 0
+#   endif /* IEXTEN == XCASE */
+#  endif /* IEXTEN && XCASE */
+#  if defined(IEXTEN) && !defined(XCASE)
+#   define XCASE IEXTEN
+#   undef IEXTEN
+#   define IEXTEN 0
+#  endif /* IEXTEN && !XCASE */
+# endif /* ISC */
+
+/*
+ * Work around convex weirdness where turning off IEXTEN makes us
+ * lose all postprocessing!
+ */
+#if defined(convex) || defined(__convex__)
+# if defined(IEXTEN) && IEXTEN != 0
+#  undef IEXTEN
+#  define IEXTEN 0
+# endif /* IEXTEN != 0 */
+#endif /* convex || __convex__ */
+
+/*
+ * So that we don't lose job control.
+ */
+#ifdef __SVR4
+# undef CSWTCH
+#endif
+
+#ifndef _POSIX_VDISABLE
+# define _POSIX_VDISABLE ((unsigned char) -1)
+#endif /* _POSIX_VDISABLE */
+
+#if !defined(CREPRINT) && defined(CRPRNT)
+# define CREPRINT CRPRNT
+#endif /* !CREPRINT && CRPRNT */
+#if !defined(CDISCARD) && defined(CFLUSH)
+# define CDISCARD CFLUSH
+#endif /* !CDISCARD && CFLUSH */
+
+#ifndef CINTR
+# define CINTR		CONTROL('c')
+#endif /* CINTR */
+#ifndef CQUIT
+# define CQUIT		034	/* ^\ */
+#endif /* CQUIT */
+#ifndef CERASE
+# define CERASE		0177	/* ^? */
+#endif /* CERASE */
+#ifndef CKILL
+# define CKILL		CONTROL('u')
+#endif /* CKILL */
+#ifndef CEOF
+# define CEOF		CONTROL('d')
+#endif /* CEOF */
+#ifndef CEOL
+# define CEOL		_POSIX_VDISABLE
+#endif /* CEOL */
+#ifndef CEOL2
+# define CEOL2		_POSIX_VDISABLE
+#endif /* CEOL2 */
+#ifndef CSWTCH
+# define CSWTCH		_POSIX_VDISABLE
+#endif /* CSWTCH */
+#ifndef CDSWTCH
+# define CDSWTCH	_POSIX_VDISABLE
+#endif /* CDSWTCH */
+#ifndef CERASE2
+# define CERASE2	_POSIX_VDISABLE
+#endif /* CERASE2 */
+#ifndef CSTART
+# define CSTART		CONTROL('q')
+#endif /* CSTART */
+#ifndef CSTOP
+# define CSTOP		CONTROL('s')
+#endif /* CSTOP */
+#ifndef CSUSP
+# define CSUSP		CONTROL('z')
+#endif /* CSUSP */
+#ifndef CDSUSP
+# define CDSUSP		CONTROL('y')
+#endif /* CDSUSP */
+
+#ifdef hpux
+
+# ifndef CREPRINT
+#  define CREPRINT	_POSIX_VDISABLE
+# endif /* CREPRINT */
+# ifndef CDISCARD
+#  define CDISCARD	_POSIX_VDISABLE
+# endif /* CDISCARD */
+# ifndef CLNEXT
+#  define CLNEXT	_POSIX_VDISABLE
+# endif /* CLNEXT */
+# ifndef CWERASE
+#  define CWERASE	_POSIX_VDISABLE
+# endif /* CWERASE */
+
+#else /* !hpux */
+
+# ifndef CREPRINT
+#  define CREPRINT	CONTROL('r')
+# endif /* CREPRINT */
+# ifndef CDISCARD
+#  define CDISCARD	CONTROL('o')
+# endif /* CDISCARD */
+# ifndef CLNEXT
+#  define CLNEXT	CONTROL('v')
+# endif /* CLNEXT */
+# ifndef CWERASE
+#  define CWERASE	CONTROL('w')
+# endif /* CWERASE */
+
+#endif /* hpux */
+
+#ifndef CSTATUS
+# define CSTATUS	CONTROL('t')
+#endif /* CSTATUS */
+#ifndef CPAGE
+# define CPAGE		' '
+#endif /* CPAGE */
+#ifndef CPGOFF
+# define CPGOFF		CONTROL('m')
+#endif /* CPGOFF */
+#ifndef CKILL2
+# define CKILL2		_POSIX_VDISABLE
+#endif /* CKILL2 */
+#ifndef CBRK
+# ifndef masscomp
+#  define CBRK		0377
+# else
+#  define CBRK		'\0'
+# endif /* masscomp */
+#endif /* CBRK */
+#ifndef CMIN
+# define CMIN		CEOF
+#endif /* CMIN */
+#ifndef CTIME
+# define CTIME		CEOL
+#endif /* CTIME */
+
+/*
+ * Fix for sun inconsistency. On termio VSUSP and the rest of the
+ * ttychars > NCC are defined. So we undefine them.
+ */
+#if defined(TERMIO) || defined(POSIX)
+# if defined(POSIX) && defined(NCCS)
+#  define NUMCC		NCCS
+# else
+#  ifdef NCC
+#   define NUMCC	NCC
+#  endif /* NCC */
+# endif /* POSIX && NCCS */
+# ifdef NUMCC
+#  ifdef VINTR
+#   if NUMCC <= VINTR
+#    undef VINTR
+#   endif /* NUMCC <= VINTR */
+#  endif /* VINTR */
+#  ifdef VQUIT
+#   if NUMCC <= VQUIT
+#    undef VQUIT
+#   endif /* NUMCC <= VQUIT */
+#  endif /* VQUIT */
+#  ifdef VERASE
+#   if NUMCC <= VERASE
+#    undef VERASE
+#   endif /* NUMCC <= VERASE */
+#  endif /* VERASE */
+#  ifdef VKILL
+#   if NUMCC <= VKILL
+#    undef VKILL
+#   endif /* NUMCC <= VKILL */
+#  endif /* VKILL */
+#  ifdef VEOF
+#   if NUMCC <= VEOF
+#    undef VEOF
+#   endif /* NUMCC <= VEOF */
+#  endif /* VEOF */
+#  ifdef VEOL
+#   if NUMCC <= VEOL
+#    undef VEOL
+#   endif /* NUMCC <= VEOL */
+#  endif /* VEOL */
+#  ifdef VEOL2
+#   if NUMCC <= VEOL2
+#    undef VEOL2
+#   endif /* NUMCC <= VEOL2 */
+#  endif /* VEOL2 */
+#  ifdef VSWTCH
+#   if NUMCC <= VSWTCH
+#    undef VSWTCH
+#   endif /* NUMCC <= VSWTCH */
+#  endif /* VSWTCH */
+#  ifdef VDSWTCH
+#   if NUMCC <= VDSWTCH
+#    undef VDSWTCH
+#   endif /* NUMCC <= VDSWTCH */
+#  endif /* VDSWTCH */
+#  ifdef VERASE2
+#   if NUMCC <= VERASE2
+#    undef VERASE2
+#   endif /* NUMCC <= VERASE2 */
+#  endif /* VERASE2 */
+#  ifdef VSTART
+#   if NUMCC <= VSTART
+#    undef VSTART
+#   endif /* NUMCC <= VSTART */
+#  endif /* VSTART */
+#  ifdef VSTOP
+#   if NUMCC <= VSTOP
+#    undef VSTOP
+#   endif /* NUMCC <= VSTOP */
+#  endif /* VSTOP */
+#  ifdef VWERASE
+#   if NUMCC <= VWERASE
+#    undef VWERASE
+#   endif /* NUMCC <= VWERASE */
+#  endif /* VWERASE */
+#  ifdef VSUSP
+#   if NUMCC <= VSUSP
+#    undef VSUSP
+#   endif /* NUMCC <= VSUSP */
+#  endif /* VSUSP */
+#  ifdef VDSUSP
+#   if NUMCC <= VDSUSP
+#    undef VDSUSP
+#   endif /* NUMCC <= VDSUSP */
+#  endif /* VDSUSP */
+#  ifdef VREPRINT
+#   if NUMCC <= VREPRINT
+#    undef VREPRINT
+#   endif /* NUMCC <= VREPRINT */
+#  endif /* VREPRINT */
+#  ifdef VDISCARD
+#   if NUMCC <= VDISCARD
+#    undef VDISCARD
+#   endif /* NUMCC <= VDISCARD */
+#  endif /* VDISCARD */
+#  ifdef VLNEXT
+#   if NUMCC <= VLNEXT
+#    undef VLNEXT
+#   endif /* NUMCC <= VLNEXT */
+#  endif /* VLNEXT */
+#  ifdef VSTATUS
+#   if NUMCC <= VSTATUS
+#    undef VSTATUS
+#   endif /* NUMCC <= VSTATUS */
+#  endif /* VSTATUS */
+#  ifdef VPAGE
+#   if NUMCC <= VPAGE
+#    undef VPAGE
+#   endif /* NUMCC <= VPAGE */
+#  endif /* VPAGE */
+#  ifdef VPGOFF
+#   if NUMCC <= VPGOFF
+#    undef VPGOFF
+#   endif /* NUMCC <= VPGOFF */
+#  endif /* VPGOFF */
+#  ifdef VKILL2
+#   if NUMCC <= VKILL2
+#    undef VKILL2
+#   endif /* NUMCC <= VKILL2 */
+#  endif /* VKILL2 */
+#  ifdef VBRK
+#   if NUMCC <= VBRK
+#    undef VBRK
+#   endif /* NUMCC <= VBRK */
+#  endif /* VBRK */
+#  ifdef VMIN
+#   if NUMCC <= VMIN
+#    undef VMIN
+#   endif /* NUMCC <= VMIN */
+#  endif /* VMIN */
+#  ifdef VTIME
+#   if NUMCC <= VTIME
+#    undef VTIME
+#   endif /* NUMCC <= VTIME */
+#  endif /* VTIME */
+# endif /* NUMCC */
+#endif /* !POSIX */
+
+#define	C_INTR		 0
+#define	C_QUIT		 1
+#define	C_ERASE		 2
+#define	C_KILL		 3
+#define	C_EOF		 4
+#define	C_EOL		 5
+#define	C_EOL2		 6
+#define	C_SWTCH		 7
+#define	C_DSWTCH	 8
+#define	C_ERASE2	 9
+#define	C_START		10
+#define	C_STOP		11
+#define	C_WERASE	12
+#define	C_SUSP		13
+#define	C_DSUSP		14
+#define	C_REPRINT	15
+#define	C_DISCARD	16
+#define	C_LNEXT		17
+#define	C_STATUS	18
+#define	C_PAGE		19
+#define	C_PGOFF		20
+#define	C_KILL2		21
+#define	C_BRK		22
+#define	C_MIN		23
+#define	C_TIME		24
+#define	C_NCC		25
+#define	C_SH(A)		((unsigned int)(1 << (A)))
+
+/*
+ * Terminal dependend data structures
+ */
+#define	EX_IO	0	/* while we are executing	*/
+#define	ED_IO	1	/* while we are editing		*/
+#define	TS_IO	2	/* new mode from terminal	*/
+#define	QU_IO	2	/* used only for quoted chars	*/
+#define	NN_IO	3	/* The number of entries	*/
+
+#define	MD_INP	0
+#define	MD_OUT	1
+#define	MD_CTL	2
+#define	MD_LIN	3
+#define	MD_CHAR	4
+#define	MD_NN	5
+
+typedef struct {
+	const char	*t_name;
+	unsigned int	 t_setmask;
+	unsigned int	 t_clrmask;
+} ttyperm_t[NN_IO][MD_NN];
+
+typedef unsigned char ttychar_t[NN_IO][C_NCC];
+
+protected int	tty_init(EditLine *);
+protected void	tty_end(EditLine *);
+protected int	tty_stty(EditLine *, int, const Char **);
+protected int	tty_rawmode(EditLine *);
+protected int	tty_cookedmode(EditLine *);
+protected int	tty_quotemode(EditLine *);
+protected int	tty_noquotemode(EditLine *);
+protected void	tty_bind_char(EditLine *, int);
+
+typedef struct {
+    ttyperm_t t_t;
+    ttychar_t t_c;
+    struct termios t_or, t_ex, t_ed, t_ts;
+    int t_tabs;
+    int t_eight;
+    speed_t t_speed;
+    int t_mode;
+    unsigned char t_vdisable;
+} el_tty_t;
+
+
+#endif /* _h_el_tty */

src/unvis.c

@@ -0,0 +1,554 @@
+/*	$NetBSD: unvis.c,v 1.39 2012/03/13 21:13:37 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1989, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char sccsid[] = "@(#)unvis.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: unvis.c,v 1.39 2012/03/13 21:13:37 christos Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <ctype.h>
+#ifdef HAVE_STDINT_H
+#include <stdint.h>
+#endif
+#include <stdio.h>
+#include <errno.h>
+#include <vis.h>
+
+#ifdef __weak_alias
+__weak_alias(strnunvisx,_strnunvisx)
+#endif
+
+#if !HAVE_VIS
+/*
+ * decode driven by state machine
+ */
+#define	S_GROUND	0	/* haven't seen escape char */
+#define	S_START		1	/* start decoding special sequence */
+#define	S_META		2	/* metachar started (M) */
+#define	S_META1		3	/* metachar more, regular char (-) */
+#define	S_CTRL		4	/* control char started (^) */
+#define	S_OCTAL2	5	/* octal digit 2 */
+#define	S_OCTAL3	6	/* octal digit 3 */
+#define	S_HEX		7	/* mandatory hex digit */
+#define	S_HEX1		8	/* http hex digit */
+#define	S_HEX2		9	/* http hex digit 2 */
+#define	S_MIME1		10	/* mime hex digit 1 */
+#define	S_MIME2		11	/* mime hex digit 2 */
+#define	S_EATCRNL	12	/* mime eating CRNL */
+#define	S_AMP		13	/* seen & */
+#define	S_NUMBER	14	/* collecting number */
+#define	S_STRING	15	/* collecting string */
+
+#define	isoctal(c)	(((u_char)(c)) >= '0' && ((u_char)(c)) <= '7')
+#define	xtod(c)		(isdigit(c) ? (c - '0') : ((tolower(c) - 'a') + 10))
+#define	XTOD(c)		(isdigit(c) ? (c - '0') : ((c - 'A') + 10))
+
+/*
+ * RFC 1866
+ */
+static const struct nv {
+	const char *name;
+	uint8_t value;
+} nv[] = {
+	{ "AElig",	198 }, /* capital AE diphthong (ligature)  */
+	{ "Aacute",	193 }, /* capital A, acute accent  */
+	{ "Acirc",	194 }, /* capital A, circumflex accent  */
+	{ "Agrave",	192 }, /* capital A, grave accent  */
+	{ "Aring",	197 }, /* capital A, ring  */
+	{ "Atilde",	195 }, /* capital A, tilde  */
+	{ "Auml",	196 }, /* capital A, dieresis or umlaut mark  */
+	{ "Ccedil",	199 }, /* capital C, cedilla  */
+	{ "ETH",	208 }, /* capital Eth, Icelandic  */
+	{ "Eacute",	201 }, /* capital E, acute accent  */
+	{ "Ecirc",	202 }, /* capital E, circumflex accent  */
+	{ "Egrave",	200 }, /* capital E, grave accent  */
+	{ "Euml",	203 }, /* capital E, dieresis or umlaut mark  */
+	{ "Iacute",	205 }, /* capital I, acute accent  */
+	{ "Icirc",	206 }, /* capital I, circumflex accent  */
+	{ "Igrave",	204 }, /* capital I, grave accent  */
+	{ "Iuml",	207 }, /* capital I, dieresis or umlaut mark  */
+	{ "Ntilde",	209 }, /* capital N, tilde  */
+	{ "Oacute",	211 }, /* capital O, acute accent  */
+	{ "Ocirc",	212 }, /* capital O, circumflex accent  */
+	{ "Ograve",	210 }, /* capital O, grave accent  */
+	{ "Oslash",	216 }, /* capital O, slash  */
+	{ "Otilde",	213 }, /* capital O, tilde  */
+	{ "Ouml",	214 }, /* capital O, dieresis or umlaut mark  */
+	{ "THORN",	222 }, /* capital THORN, Icelandic  */
+	{ "Uacute",	218 }, /* capital U, acute accent  */
+	{ "Ucirc",	219 }, /* capital U, circumflex accent  */
+	{ "Ugrave",	217 }, /* capital U, grave accent  */
+	{ "Uuml",	220 }, /* capital U, dieresis or umlaut mark  */
+	{ "Yacute",	221 }, /* capital Y, acute accent  */
+	{ "aacute",	225 }, /* small a, acute accent  */
+	{ "acirc",	226 }, /* small a, circumflex accent  */
+	{ "acute",	180 }, /* acute accent  */
+	{ "aelig",	230 }, /* small ae diphthong (ligature)  */
+	{ "agrave",	224 }, /* small a, grave accent  */
+	{ "amp",	 38 }, /* ampersand  */
+	{ "aring",	229 }, /* small a, ring  */
+	{ "atilde",	227 }, /* small a, tilde  */
+	{ "auml",	228 }, /* small a, dieresis or umlaut mark  */
+	{ "brvbar",	166 }, /* broken (vertical) bar  */
+	{ "ccedil",	231 }, /* small c, cedilla  */
+	{ "cedil",	184 }, /* cedilla  */
+	{ "cent",	162 }, /* cent sign  */
+	{ "copy",	169 }, /* copyright sign  */
+	{ "curren",	164 }, /* general currency sign  */
+	{ "deg",	176 }, /* degree sign  */
+	{ "divide",	247 }, /* divide sign  */
+	{ "eacute",	233 }, /* small e, acute accent  */
+	{ "ecirc",	234 }, /* small e, circumflex accent  */
+	{ "egrave",	232 }, /* small e, grave accent  */
+	{ "eth",	240 }, /* small eth, Icelandic  */
+	{ "euml",	235 }, /* small e, dieresis or umlaut mark  */
+	{ "frac12",	189 }, /* fraction one-half  */
+	{ "frac14",	188 }, /* fraction one-quarter  */
+	{ "frac34",	190 }, /* fraction three-quarters  */
+	{ "gt",		 62 }, /* greater than  */
+	{ "iacute",	237 }, /* small i, acute accent  */
+	{ "icirc",	238 }, /* small i, circumflex accent  */
+	{ "iexcl",	161 }, /* inverted exclamation mark  */
+	{ "igrave",	236 }, /* small i, grave accent  */
+	{ "iquest",	191 }, /* inverted question mark  */
+	{ "iuml",	239 }, /* small i, dieresis or umlaut mark  */
+	{ "laquo",	171 }, /* angle quotation mark, left  */
+	{ "lt",		 60 }, /* less than  */
+	{ "macr",	175 }, /* macron  */
+	{ "micro",	181 }, /* micro sign  */
+	{ "middot",	183 }, /* middle dot  */
+	{ "nbsp",	160 }, /* no-break space  */
+	{ "not",	172 }, /* not sign  */
+	{ "ntilde",	241 }, /* small n, tilde  */
+	{ "oacute",	243 }, /* small o, acute accent  */
+	{ "ocirc",	244 }, /* small o, circumflex accent  */
+	{ "ograve",	242 }, /* small o, grave accent  */
+	{ "ordf",	170 }, /* ordinal indicator, feminine  */
+	{ "ordm",	186 }, /* ordinal indicator, masculine  */
+	{ "oslash",	248 }, /* small o, slash  */
+	{ "otilde",	245 }, /* small o, tilde  */
+	{ "ouml",	246 }, /* small o, dieresis or umlaut mark  */
+	{ "para",	182 }, /* pilcrow (paragraph sign)  */
+	{ "plusmn",	177 }, /* plus-or-minus sign  */
+	{ "pound",	163 }, /* pound sterling sign  */
+	{ "quot",	 34 }, /* double quote  */
+	{ "raquo",	187 }, /* angle quotation mark, right  */
+	{ "reg",	174 }, /* registered sign  */
+	{ "sect",	167 }, /* section sign  */
+	{ "shy",	173 }, /* soft hyphen  */
+	{ "sup1",	185 }, /* superscript one  */
+	{ "sup2",	178 }, /* superscript two  */
+	{ "sup3",	179 }, /* superscript three  */
+	{ "szlig",	223 }, /* small sharp s, German (sz ligature)  */
+	{ "thorn",	254 }, /* small thorn, Icelandic  */
+	{ "times",	215 }, /* multiply sign  */
+	{ "uacute",	250 }, /* small u, acute accent  */
+	{ "ucirc",	251 }, /* small u, circumflex accent  */
+	{ "ugrave",	249 }, /* small u, grave accent  */
+	{ "uml",	168 }, /* umlaut (dieresis)  */
+	{ "uuml",	252 }, /* small u, dieresis or umlaut mark  */
+	{ "yacute",	253 }, /* small y, acute accent  */
+	{ "yen",	165 }, /* yen sign  */
+	{ "yuml",	255 }, /* small y, dieresis or umlaut mark  */
+};
+
+/*
+ * unvis - decode characters previously encoded by vis
+ */
+int
+unvis(char *cp, int c, int *astate, int flag)
+{
+	unsigned char uc = (unsigned char)c;
+	unsigned char st, ia, is, lc;
+
+/*
+ * Bottom 8 bits of astate hold the state machine state.
+ * Top 8 bits hold the current character in the http 1866 nv string decoding
+ */
+#define GS(a)		((a) & 0xff)
+#define SS(a, b)	(((uint32_t)(a) << 24) | (b))
+#define GI(a)		((uint32_t)(a) >> 24)
+
+	_DIAGASSERT(cp != NULL);
+	_DIAGASSERT(astate != NULL);
+	st = GS(*astate);
+
+	if (flag & UNVIS_END) {
+		switch (st) {
+		case S_OCTAL2:
+		case S_OCTAL3:
+		case S_HEX2:
+			*astate = SS(0, S_GROUND);
+			return UNVIS_VALID;
+		case S_GROUND:
+			return UNVIS_NOCHAR;
+		default:
+			return UNVIS_SYNBAD;
+		}
+	}
+
+	switch (st) {
+
+	case S_GROUND:
+		*cp = 0;
+		if ((flag & VIS_NOESCAPE) == 0 && c == '\\') {
+			*astate = SS(0, S_START);
+			return UNVIS_NOCHAR;
+		}
+		if ((flag & VIS_HTTP1808) && c == '%') {
+			*astate = SS(0, S_HEX1);
+			return UNVIS_NOCHAR;
+		}
+		if ((flag & VIS_HTTP1866) && c == '&') {
+			*astate = SS(0, S_AMP);
+			return UNVIS_NOCHAR;
+		}
+		if ((flag & VIS_MIMESTYLE) && c == '=') {
+			*astate = SS(0, S_MIME1);
+			return UNVIS_NOCHAR;
+		}
+		*cp = c;
+		return UNVIS_VALID;
+
+	case S_START:
+		switch(c) {
+		case '\\':
+			*cp = c;
+			*astate = SS(0, S_GROUND);
+			return UNVIS_VALID;
+		case '0': case '1': case '2': case '3':
+		case '4': case '5': case '6': case '7':
+			*cp = (c - '0');
+			*astate = SS(0, S_OCTAL2);
+			return UNVIS_NOCHAR;
+		case 'M':
+			*cp = (char)0200;
+			*astate = SS(0, S_META);
+			return UNVIS_NOCHAR;
+		case '^':
+			*astate = SS(0, S_CTRL);
+			return UNVIS_NOCHAR;
+		case 'n':
+			*cp = '\n';
+			*astate = SS(0, S_GROUND);
+			return UNVIS_VALID;
+		case 'r':
+			*cp = '\r';
+			*astate = SS(0, S_GROUND);
+			return UNVIS_VALID;
+		case 'b':
+			*cp = '\b';
+			*astate = SS(0, S_GROUND);
+			return UNVIS_VALID;
+		case 'a':
+			*cp = '\007';
+			*astate = SS(0, S_GROUND);
+			return UNVIS_VALID;
+		case 'v':
+			*cp = '\v';
+			*astate = SS(0, S_GROUND);
+			return UNVIS_VALID;
+		case 't':
+			*cp = '\t';
+			*astate = SS(0, S_GROUND);
+			return UNVIS_VALID;
+		case 'f':
+			*cp = '\f';
+			*astate = SS(0, S_GROUND);
+			return UNVIS_VALID;
+		case 's':
+			*cp = ' ';
+			*astate = SS(0, S_GROUND);
+			return UNVIS_VALID;
+		case 'E':
+			*cp = '\033';
+			*astate = SS(0, S_GROUND);
+			return UNVIS_VALID;
+		case 'x':
+			*astate = SS(0, S_HEX);
+			return UNVIS_NOCHAR;
+		case '\n':
+			/*
+			 * hidden newline
+			 */
+			*astate = SS(0, S_GROUND);
+			return UNVIS_NOCHAR;
+		case '$':
+			/*
+			 * hidden marker
+			 */
+			*astate = SS(0, S_GROUND);
+			return UNVIS_NOCHAR;
+		}
+		goto bad;
+
+	case S_META:
+		if (c == '-')
+			*astate = SS(0, S_META1);
+		else if (c == '^')
+			*astate = SS(0, S_CTRL);
+		else 
+			goto bad;
+		return UNVIS_NOCHAR;
+
+	case S_META1:
+		*astate = SS(0, S_GROUND);
+		*cp |= c;
+		return UNVIS_VALID;
+
+	case S_CTRL:
+		if (c == '?')
+			*cp |= 0177;
+		else
+			*cp |= c & 037;
+		*astate = SS(0, S_GROUND);
+		return UNVIS_VALID;
+
+	case S_OCTAL2:	/* second possible octal digit */
+		if (isoctal(uc)) {
+			/*
+			 * yes - and maybe a third
+			 */
+			*cp = (*cp << 3) + (c - '0');
+			*astate = SS(0, S_OCTAL3);
+			return UNVIS_NOCHAR;
+		}
+		/*
+		 * no - done with current sequence, push back passed char
+		 */
+		*astate = SS(0, S_GROUND);
+		return UNVIS_VALIDPUSH;
+
+	case S_OCTAL3:	/* third possible octal digit */
+		*astate = SS(0, S_GROUND);
+		if (isoctal(uc)) {
+			*cp = (*cp << 3) + (c - '0');
+			return UNVIS_VALID;
+		}
+		/*
+		 * we were done, push back passed char
+		 */
+		return UNVIS_VALIDPUSH;
+
+	case S_HEX:
+		if (!isxdigit(uc))
+			goto bad;
+		/*FALLTHROUGH*/
+	case S_HEX1:
+		if (isxdigit(uc)) {
+			*cp = xtod(uc);
+			*astate = SS(0, S_HEX2);
+			return UNVIS_NOCHAR;
+		}
+		/*
+		 * no - done with current sequence, push back passed char
+		 */
+		*astate = SS(0, S_GROUND);
+		return UNVIS_VALIDPUSH;
+
+	case S_HEX2:
+		*astate = S_GROUND;
+		if (isxdigit(uc)) {
+			*cp = xtod(uc) | (*cp << 4);
+			return UNVIS_VALID;
+		}
+		return UNVIS_VALIDPUSH;
+
+	case S_MIME1:
+		if (uc == '\n' || uc == '\r') {
+			*astate = SS(0, S_EATCRNL);
+			return UNVIS_NOCHAR;
+		}
+		if (isxdigit(uc) && (isdigit(uc) || isupper(uc))) {
+			*cp = XTOD(uc);
+			*astate = SS(0, S_MIME2);
+			return UNVIS_NOCHAR;
+		}
+		goto bad;
+
+	case S_MIME2:
+		if (isxdigit(uc) && (isdigit(uc) || isupper(uc))) {
+			*astate = SS(0, S_GROUND);
+			*cp = XTOD(uc) | (*cp << 4);
+			return UNVIS_VALID;
+		}
+		goto bad;
+
+	case S_EATCRNL:
+		switch (uc) {
+		case '\r':
+		case '\n':
+			return UNVIS_NOCHAR;
+		case '=':
+			*astate = SS(0, S_MIME1);
+			return UNVIS_NOCHAR;
+		default:
+			*cp = uc;
+			*astate = SS(0, S_GROUND);
+			return UNVIS_VALID;
+		}
+
+	case S_AMP:
+		*cp = 0;
+		if (uc == '#') {
+			*astate = SS(0, S_NUMBER);
+			return UNVIS_NOCHAR;
+		}
+		*astate = SS(0, S_STRING);
+		/*FALLTHROUGH*/
+
+	case S_STRING:
+		ia = *cp;		/* index in the array */
+		is = GI(*astate);	/* index in the string */
+		lc = is == 0 ? 0 : nv[ia].name[is - 1];	/* last character */
+
+		if (uc == ';')
+			uc = '\0';
+
+		for (; ia < __arraycount(nv); ia++) {
+			if (is != 0 && nv[ia].name[is - 1] != lc)
+				goto bad;
+			if (nv[ia].name[is] == uc)
+				break;
+		}
+
+		if (ia == __arraycount(nv))
+			goto bad;
+
+		if (uc != 0) {
+			*cp = ia;
+			*astate = SS(is + 1, S_STRING);
+			return UNVIS_NOCHAR;
+		}
+
+		*cp = nv[ia].value;
+		*astate = SS(0, S_GROUND);
+		return UNVIS_VALID;
+
+	case S_NUMBER:
+		if (uc == ';')
+			return UNVIS_VALID;
+		if (!isdigit(uc))
+			goto bad;
+		*cp += (*cp * 10) + uc - '0';
+		return UNVIS_NOCHAR;
+
+	default:
+	bad:
+		/*
+		 * decoder in unknown state - (probably uninitialized)
+		 */
+		*astate = SS(0, S_GROUND);
+		return UNVIS_SYNBAD;
+	}
+}
+
+/*
+ * strnunvisx - decode src into dst
+ *
+ *	Number of chars decoded into dst is returned, -1 on error.
+ *	Dst is null terminated.
+ */
+
+int
+strnunvisx(char *dst, size_t dlen, const char *src, int flag)
+{
+	char c;
+	char t = '\0', *start = dst;
+	int state = 0;
+
+	_DIAGASSERT(src != NULL);
+	_DIAGASSERT(dst != NULL);
+#define CHECKSPACE() \
+	do { \
+		if (dlen-- == 0) { \
+			errno = ENOSPC; \
+			return -1; \
+		} \
+	} while (/*CONSTCOND*/0)
+
+	while ((c = *src++) != '\0') {
+ again:
+		switch (unvis(&t, c, &state, flag)) {
+		case UNVIS_VALID:
+			CHECKSPACE();
+			*dst++ = t;
+			break;
+		case UNVIS_VALIDPUSH:
+			CHECKSPACE();
+			*dst++ = t;
+			goto again;
+		case 0:
+		case UNVIS_NOCHAR:
+			break;
+		case UNVIS_SYNBAD:
+			errno = EINVAL;
+			return -1;
+		default:
+			_DIAGASSERT(/*CONSTCOND*/0);
+			errno = EINVAL;
+			return -1;
+		}
+	}
+	if (unvis(&t, c, &state, UNVIS_END) == UNVIS_VALID) {
+		CHECKSPACE();
+		*dst++ = t;
+	}
+	CHECKSPACE();
+	*dst = '\0';
+	return (int)(dst - start);
+}
+
+int
+strunvisx(char *dst, const char *src, int flag)
+{
+	return strnunvisx(dst, (size_t)~0, src, flag);
+}
+
+int
+strunvis(char *dst, const char *src)
+{
+	return strnunvisx(dst, (size_t)~0, src, 0);
+}
+
+int
+strnunvis(char *dst, size_t dlen, const char *src)
+{
+	return strnunvisx(dst, dlen, src, 0);
+}
+#endif

src/vis.c

@@ -0,0 +1,574 @@
+/*	$NetBSD: vis.c,v 1.44 2011/03/12 19:52:48 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1989, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*-
+ * Copyright (c) 1999, 2005 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: vis.c,v 1.44 2011/03/12 19:52:48 christos Exp $");
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <vis.h>
+#include <errno.h>
+#include <stdlib.h>
+
+#ifdef __weak_alias
+__weak_alias(strvisx,_strvisx)
+#endif
+
+#if !HAVE_VIS || !HAVE_SVIS
+#include <ctype.h>
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
+
+static char *do_svis(char *, size_t *, int, int, int, const char *);
+
+#undef BELL
+#define BELL '\a'
+
+#define isoctal(c)	(((u_char)(c)) >= '0' && ((u_char)(c)) <= '7')
+#define iswhite(c)	(c == ' ' || c == '\t' || c == '\n')
+#define issafe(c)	(c == '\b' || c == BELL || c == '\r')
+#define xtoa(c)		"0123456789abcdef"[c]
+#define XTOA(c)		"0123456789ABCDEF"[c]
+
+#define MAXEXTRAS	5
+
+#define MAKEEXTRALIST(flag, extra, orig_str)				      \
+do {									      \
+	const char *orig = orig_str;					      \
+	const char *o = orig;						      \
+	char *e;							      \
+	while (*o++)							      \
+		continue;						      \
+	extra = malloc((size_t)((o - orig) + MAXEXTRAS));		      \
+	if (!extra) break;						      \
+	for (o = orig, e = extra; (*e++ = *o++) != '\0';)		      \
+		continue;						      \
+	e--;								      \
+	if (flag & VIS_SP) *e++ = ' ';					      \
+	if (flag & VIS_TAB) *e++ = '\t';				      \
+	if (flag & VIS_NL) *e++ = '\n';					      \
+	if ((flag & VIS_NOSLASH) == 0) *e++ = '\\';			      \
+	*e = '\0';							      \
+} while (/*CONSTCOND*/0)
+
+/*
+ * This is do_hvis, for HTTP style (RFC 1808)
+ */
+static char *
+do_hvis(char *dst, size_t *dlen, int c, int flag, int nextc, const char *extra)
+{
+
+	if ((isascii(c) && isalnum(c))
+	    /* safe */
+	    || c == '$' || c == '-' || c == '_' || c == '.' || c == '+'
+	    /* extra */
+	    || c == '!' || c == '*' || c == '\'' || c == '(' || c == ')'
+	    || c == ',') {
+		dst = do_svis(dst, dlen, c, flag, nextc, extra);
+	} else {
+		if (dlen) {
+			if (*dlen < 3)
+				return NULL;
+			*dlen -= 3;
+		}
+		*dst++ = '%';
+		*dst++ = xtoa(((unsigned int)c >> 4) & 0xf);
+		*dst++ = xtoa((unsigned int)c & 0xf);
+	}
+
+	return dst;
+}
+
+/*
+ * This is do_mvis, for Quoted-Printable MIME (RFC 2045)
+ * NB: No handling of long lines or CRLF.
+ */
+static char *
+do_mvis(char *dst, size_t *dlen, int c, int flag, int nextc, const char *extra)
+{
+	if ((c != '\n') &&
+	    /* Space at the end of the line */
+	    ((isspace(c) && (nextc == '\r' || nextc == '\n')) ||
+	    /* Out of range */
+	    (!isspace(c) && (c < 33 || (c > 60 && c < 62) || c > 126)) ||
+	    /* Specific char to be escaped */ 
+	    strchr("#$@[\\]^`{|}~", c) != NULL)) {
+		if (dlen) {
+			if (*dlen < 3)
+				return NULL;
+			*dlen -= 3;
+		}
+		*dst++ = '=';
+		*dst++ = XTOA(((unsigned int)c >> 4) & 0xf);
+		*dst++ = XTOA((unsigned int)c & 0xf);
+	} else {
+		dst = do_svis(dst, dlen, c, flag, nextc, extra);
+	}
+	return dst;
+}
+
+/*
+ * This is do_vis, the central code of vis.
+ * dst:	      Pointer to the destination buffer
+ * c:	      Character to encode
+ * flag:      Flag word
+ * nextc:     The character following 'c'
+ * extra:     Pointer to the list of extra characters to be
+ *	      backslash-protected.
+ */
+static char *
+do_svis(char *dst, size_t *dlen, int c, int flag, int nextc, const char *extra)
+{
+	int isextra;
+	size_t odlen = dlen ? *dlen : 0;
+
+	isextra = strchr(extra, c) != NULL;
+#define HAVE(x) \
+	do { \
+		if (dlen) { \
+			if (*dlen < (x)) \
+				goto out; \
+			*dlen -= (x); \
+		} \
+	} while (/*CONSTCOND*/0)
+	if (!isextra && isascii(c) && (isgraph(c) || iswhite(c) ||
+	    ((flag & VIS_SAFE) && issafe(c)))) {
+		HAVE(1);
+		*dst++ = c;
+		return dst;
+	}
+	if (flag & VIS_CSTYLE) {
+		HAVE(2);
+		switch (c) {
+		case '\n':
+			*dst++ = '\\'; *dst++ = 'n';
+			return dst;
+		case '\r':
+			*dst++ = '\\'; *dst++ = 'r';
+			return dst;
+		case '\b':
+			*dst++ = '\\'; *dst++ = 'b';
+			return dst;
+		case BELL:
+			*dst++ = '\\'; *dst++ = 'a';
+			return dst;
+		case '\v':
+			*dst++ = '\\'; *dst++ = 'v';
+			return dst;
+		case '\t':
+			*dst++ = '\\'; *dst++ = 't';
+			return dst;
+		case '\f':
+			*dst++ = '\\'; *dst++ = 'f';
+			return dst;
+		case ' ':
+			*dst++ = '\\'; *dst++ = 's';
+			return dst;
+		case '\0':
+			*dst++ = '\\'; *dst++ = '0';
+			if (isoctal(nextc)) {
+				HAVE(2);
+				*dst++ = '0';
+				*dst++ = '0';
+			}
+			return dst;
+		default:
+			if (isgraph(c)) {
+				*dst++ = '\\'; *dst++ = c;
+				return dst;
+			}
+			if (dlen)
+				*dlen = odlen;
+		}
+	}
+	if (isextra || ((c & 0177) == ' ') || (flag & VIS_OCTAL)) {
+		HAVE(4);
+		*dst++ = '\\';
+		*dst++ = (u_char)(((u_int32_t)(u_char)c >> 6) & 03) + '0';
+		*dst++ = (u_char)(((u_int32_t)(u_char)c >> 3) & 07) + '0';
+		*dst++ =			     (c	      & 07) + '0';
+	} else {
+		if ((flag & VIS_NOSLASH) == 0) {
+			HAVE(1);
+			*dst++ = '\\';
+		}
+
+		if (c & 0200) {
+			HAVE(1);
+			c &= 0177; *dst++ = 'M';
+		}
+
+		if (iscntrl(c)) {
+			HAVE(2);
+			*dst++ = '^';
+			if (c == 0177)
+				*dst++ = '?';
+			else
+				*dst++ = c + '@';
+		} else {
+			HAVE(2);
+			*dst++ = '-'; *dst++ = c;
+		}
+	}
+	return dst;
+out:
+	*dlen = odlen;
+	return NULL;
+}
+
+typedef char *(*visfun_t)(char *, size_t *, int, int, int, const char *);
+
+/*
+ * Return the appropriate encoding function depending on the flags given.
+ */
+static visfun_t
+getvisfun(int flag)
+{
+	if (flag & VIS_HTTPSTYLE)
+		return do_hvis;
+	if (flag & VIS_MIMESTYLE)
+		return do_mvis;
+	return do_svis;
+}
+
+/*
+ * isnvis - visually encode characters, also encoding the characters
+ *	  pointed to by `extra'
+ */
+static char *
+isnvis(char *dst, size_t *dlen, int c, int flag, int nextc, const char *extra)
+{
+	char *nextra = NULL;
+	visfun_t f;
+
+	_DIAGASSERT(dst != NULL);
+	_DIAGASSERT(extra != NULL);
+	MAKEEXTRALIST(flag, nextra, extra);
+	if (!nextra) {
+		if (dlen && *dlen == 0) {
+			errno = ENOSPC;
+			return NULL;
+		}
+		*dst = '\0';		/* can't create nextra, return "" */
+		return dst;
+	}
+	f = getvisfun(flag);
+	dst = (*f)(dst, dlen, c, flag, nextc, nextra);
+	free(nextra);
+	if (dst == NULL || (dlen && *dlen == 0)) {
+		errno = ENOSPC;
+		return NULL;
+	}
+	*dst = '\0';
+	return dst;
+}
+
+char *
+svis(char *dst, int c, int flag, int nextc, const char *extra)
+{
+	return isnvis(dst, NULL, c, flag, nextc, extra);
+}
+
+char *
+snvis(char *dst, size_t dlen, int c, int flag, int nextc, const char *extra)
+{
+	return isnvis(dst, &dlen, c, flag, nextc, extra);
+}
+
+
+/*
+ * strsvis, strsvisx - visually encode characters from src into dst
+ *
+ *	Extra is a pointer to a \0-terminated list of characters to
+ *	be encoded, too. These functions are useful e. g. to
+ *	encode strings in such a way so that they are not interpreted
+ *	by a shell.
+ *
+ *	Dst must be 4 times the size of src to account for possible
+ *	expansion.  The length of dst, not including the trailing NULL,
+ *	is returned.
+ *
+ *	Strsvisx encodes exactly len bytes from src into dst.
+ *	This is useful for encoding a block of data.
+ */
+static int
+istrsnvis(char *dst, size_t *dlen, const char *csrc, int flag, const char *extra)
+{
+	int c;
+	char *start;
+	char *nextra = NULL;
+	const unsigned char *src = (const unsigned char *)csrc;
+	visfun_t f;
+
+	_DIAGASSERT(dst != NULL);
+	_DIAGASSERT(src != NULL);
+	_DIAGASSERT(extra != NULL);
+	MAKEEXTRALIST(flag, nextra, extra);
+	if (!nextra) {
+		*dst = '\0';		/* can't create nextra, return "" */
+		return 0;
+	}
+	f = getvisfun(flag);
+	for (start = dst; (c = *src++) != '\0'; /* empty */) {
+		dst = (*f)(dst, dlen, c, flag, *src, nextra);
+		if (dst == NULL) {
+			errno = ENOSPC;
+			return -1;
+		}
+	}
+	free(nextra);
+	if (dlen && *dlen == 0) {
+		errno = ENOSPC;
+		return -1;
+	}
+	*dst = '\0';
+	return (int)(dst - start);
+}
+
+int
+strsvis(char *dst, const char *csrc, int flag, const char *extra)
+{
+	return istrsnvis(dst, NULL, csrc, flag, extra);
+}
+
+int
+strsnvis(char *dst, size_t dlen, const char *csrc, int flag, const char *extra)
+{
+	return istrsnvis(dst, &dlen, csrc, flag, extra);
+}
+
+static int
+istrsnvisx(char *dst, size_t *dlen, const char *csrc, size_t len, int flag,
+    const char *extra)
+{
+	unsigned char c;
+	char *start;
+	char *nextra = NULL;
+	const unsigned char *src = (const unsigned char *)csrc;
+	visfun_t f;
+
+	_DIAGASSERT(dst != NULL);
+	_DIAGASSERT(src != NULL);
+	_DIAGASSERT(extra != NULL);
+	MAKEEXTRALIST(flag, nextra, extra);
+	if (! nextra) {
+		if (dlen && *dlen == 0) {
+			errno = ENOSPC;
+			return -1;
+		}
+		*dst = '\0';		/* can't create nextra, return "" */
+		return 0;
+	}
+
+	f = getvisfun(flag);
+	for (start = dst; len > 0; len--) {
+		c = *src++;
+		dst = (*f)(dst, dlen, c, flag, len > 1 ? *src : '\0', nextra);
+		if (dst == NULL) {
+			errno = ENOSPC;
+			return -1;
+		}
+	}
+	free(nextra);
+	if (dlen && *dlen == 0) {
+		errno = ENOSPC;
+		return -1;
+	}
+	*dst = '\0';
+	return (int)(dst - start);
+}
+
+int
+strsvisx(char *dst, const char *csrc, size_t len, int flag, const char *extra)
+{
+	return istrsnvisx(dst, NULL, csrc, len, flag, extra);
+}
+
+int
+strsnvisx(char *dst, size_t dlen, const char *csrc, size_t len, int flag,
+    const char *extra)
+{
+	return istrsnvisx(dst, &dlen, csrc, len, flag, extra);
+}
+#endif
+
+#if !HAVE_VIS
+/*
+ * vis - visually encode characters
+ */
+static char *
+invis(char *dst, size_t *dlen, int c, int flag, int nextc)
+{
+	char *extra = NULL;
+	unsigned char uc = (unsigned char)c;
+	visfun_t f;
+
+	_DIAGASSERT(dst != NULL);
+
+	MAKEEXTRALIST(flag, extra, "");
+	if (! extra) {
+		if (dlen && *dlen == 0) {
+			errno = ENOSPC;
+			return NULL;
+		}
+		*dst = '\0';		/* can't create extra, return "" */
+		return dst;
+	}
+	f = getvisfun(flag);
+	dst = (*f)(dst, dlen, uc, flag, nextc, extra);
+	free(extra);
+	if (dst == NULL || (dlen && *dlen == 0)) {
+		errno = ENOSPC;
+		return NULL;
+	}
+	*dst = '\0';
+	return dst;
+}
+
+char *
+vis(char *dst, int c, int flag, int nextc)
+{
+	return invis(dst, NULL, c, flag, nextc);
+}
+
+char *
+nvis(char *dst, size_t dlen, int c, int flag, int nextc)
+{
+	return invis(dst, &dlen, c, flag, nextc);
+}
+
+
+/*
+ * strvis, strvisx - visually encode characters from src into dst
+ *
+ *	Dst must be 4 times the size of src to account for possible
+ *	expansion.  The length of dst, not including the trailing NULL,
+ *	is returned.
+ *
+ *	Strvisx encodes exactly len bytes from src into dst.
+ *	This is useful for encoding a block of data.
+ */
+static int
+istrnvis(char *dst, size_t *dlen, const char *src, int flag)
+{
+	char *extra = NULL;
+	int rv;
+
+	MAKEEXTRALIST(flag, extra, "");
+	if (!extra) {
+		if (dlen && *dlen == 0) {
+			errno = ENOSPC;
+			return -1;
+		}
+		*dst = '\0';		/* can't create extra, return "" */
+		return 0;
+	}
+	rv = istrsnvis(dst, dlen, src, flag, extra);
+	free(extra);
+	return rv;
+}
+
+int
+strvis(char *dst, const char *src, int flag)
+{
+	return istrnvis(dst, NULL, src, flag);
+}
+
+int
+strnvis(char *dst, size_t dlen, const char *src, int flag)
+{
+	return istrnvis(dst, &dlen, src, flag);
+}
+
+static int
+istrnvisx(char *dst, size_t *dlen, const char *src, size_t len, int flag)
+{
+	char *extra = NULL;
+	int rv;
+
+	MAKEEXTRALIST(flag, extra, "");
+	if (!extra) {
+		if (dlen && *dlen == 0) {
+			errno = ENOSPC;
+			return -1;
+		}
+		*dst = '\0';		/* can't create extra, return "" */
+		return 0;
+	}
+	rv = istrsnvisx(dst, dlen, src, len, flag, extra);
+	free(extra);
+	return rv;
+}
+
+int
+strvisx(char *dst, const char *src, size_t len, int flag)
+{
+	return istrnvisx(dst, NULL, src, len, flag);
+}
+
+int
+strnvisx(char *dst, size_t dlen, const char *src, size_t len, int flag)
+{
+	return istrnvisx(dst, &dlen, src, len, flag);
+}
+
+#endif

src/vis.h

@@ -0,0 +1,108 @@
+/*	$NetBSD: vis.h,v 1.19 2011/03/12 19:52:45 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)vis.h	8.1 (Berkeley) 6/2/93
+ */
+
+#ifndef _VIS_H_
+#define	_VIS_H_
+
+/*
+ * to select alternate encoding format
+ */
+#define	VIS_OCTAL	0x001	/* use octal \ddd format */
+#define	VIS_CSTYLE	0x002	/* use \[nrft0..] where appropiate */
+
+/*
+ * to alter set of characters encoded (default is to encode all
+ * non-graphic except space, tab, and newline).
+ */
+#define	VIS_SP		0x004	/* also encode space */
+#define	VIS_TAB		0x008	/* also encode tab */
+#define	VIS_NL		0x010	/* also encode newline */
+#define	VIS_WHITE	(VIS_SP | VIS_TAB | VIS_NL)
+#define	VIS_SAFE	0x020	/* only encode "unsafe" characters */
+
+/*
+ * other
+ */
+#define	VIS_NOSLASH	0x040	/* inhibit printing '\' */
+#define	VIS_HTTP1808	0x080	/* http-style escape % hex hex */
+#define	VIS_HTTPSTYLE	0x080	/* http-style escape % hex hex */
+#define	VIS_MIMESTYLE	0x100	/* mime-style escape = HEX HEX */
+#define	VIS_HTTP1866	0x200	/* http-style &#num; or &string; */
+#define	VIS_NOESCAPE	0x400	/* don't decode `\' */
+#define	_VIS_END	0x800	/* for unvis */
+
+/*
+ * unvis return codes
+ */
+#define	UNVIS_VALID	 1	/* character valid */
+#define	UNVIS_VALIDPUSH	 2	/* character valid, push back passed char */
+#define	UNVIS_NOCHAR	 3	/* valid sequence, no character produced */
+#define	UNVIS_SYNBAD	-1	/* unrecognized escape sequence */
+#define	UNVIS_ERROR	-2	/* decoder in unknown state (unrecoverable) */
+
+/*
+ * unvis flags
+ */
+#define	UNVIS_END	_VIS_END	/* no more characters */
+
+__BEGIN_DECLS
+char	*vis(char *, int, int, int);
+char	*nvis(char *, size_t, int, int, int);
+
+char	*svis(char *, int, int, int, const char *);
+char	*snvis(char *, size_t, int, int, int, const char *);
+
+int	strvis(char *, const char *, int);
+int	strnvis(char *, size_t, const char *, int);
+
+int	strsvis(char *, const char *, int, const char *);
+int	strsnvis(char *, size_t, const char *, int, const char *);
+
+int	strvisx(char *, const char *, size_t, int);
+int	strnvisx(char *, size_t, const char *, size_t, int);
+
+int	strsvisx(char *, const char *, size_t, int, const char *);
+int	strsnvisx(char *, size_t, const char *, size_t, int, const char *);
+
+int	strunvis(char *, const char *);
+int	strnunvis(char *, size_t, const char *);
+
+int	strunvisx(char *, const char *, int);
+int	strnunvisx(char *, size_t, const char *, int);
+
+#ifndef __LIBC12_SOURCE__
+int	unvis(char *, int, int *, int);
+#endif
+__END_DECLS
+
+#endif /* !_VIS_H_ */

src/wcsdup.c

@@ -0,0 +1,43 @@
+/*	$NetBSD: wcsdup.c,v 1.3 2008/05/26 13:17:48 haad Exp $	*/
+
+/*
+ * Copyright (C) 2006 Aleksey Cheusov
+ *
+ * This material is provided "as is", with absolutely no warranty expressed
+ * or implied. Any use is at your own risk.
+ *
+ * Permission to use or copy this software for any purpose is hereby granted 
+ * without fee. Permission to modify the code and to distribute modified
+ * code is also granted without any restrictions.
+ */
+
+#ifndef HAVE_WCSDUP
+
+#include "config.h"
+
+#if defined(LIBC_SCCS) && !defined(lint) 
+__RCSID("$NetBSD: wcsdup.c,v 1.3 2008/05/26 13:17:48 haad Exp $"); 
+#endif /* LIBC_SCCS and not lint */ 
+
+#include <stdlib.h>
+#include <assert.h>
+#include <wchar.h>
+
+wchar_t *
+wcsdup(const wchar_t *str)
+{
+	wchar_t *copy;
+	size_t len;
+
+	_DIAGASSERT(str != NULL);
+
+	len = wcslen(str) + 1;
+	copy = malloc(len * sizeof (wchar_t));
+
+	if (!copy)
+		return NULL;
+
+	return wmemcpy(copy, str, len);
+}
+
+#endif

unexports

@@ -0,0 +1,255 @@
+___ct_decode_string
+___ct_encode_string
+___edit_3VersionNumber
+___edit_3VersionString
+_c__next_word
+_c__prev_word
+_c_delafter
+_c_delafter1
+_c_delbefore
+_c_delbefore1
+_c_gets
+_c_hmatch
+_c_hpos
+_c_insert
+_c_setpat
+_ce__isword
+_ce_inc_search
+_ce_search_line
+_ch_end
+_ch_enlargebufs
+_ch_init
+_ch_reset
+_ch_resizefun
+_ct_chr_class
+_ct_conv_buff_resize
+_ct_decode_argv
+_ct_enc_width
+_ct_encode_char
+_ct_visual_char
+_ct_visual_string
+_ct_visual_width
+_cv__endword
+_cv__isWord
+_cv__isword
+_cv_csearch
+_cv_delfini
+_cv_next_word
+_cv_prev_word
+_cv_repeat_srch
+_cv_search
+_cv_undo
+_cv_yank
+_ed_argument_digit
+_ed_clear_screen
+_ed_command
+_ed_delete_next_char
+_ed_delete_prev_char
+_ed_delete_prev_word
+_ed_digit
+_ed_end_of_file
+_ed_insert
+_ed_kill_line
+_ed_move_to_beg
+_ed_move_to_end
+_ed_newline
+_ed_next_char
+_ed_next_history
+_ed_next_line
+_ed_prev_char
+_ed_prev_history
+_ed_prev_line
+_ed_prev_word
+_ed_quoted_insert
+_ed_redisplay
+_ed_search_next_history
+_ed_search_prev_history
+_ed_sequence_lead_in
+_ed_start_over
+_ed_transpose_chars
+_ed_tty_dsusp
+_ed_tty_flush_output
+_ed_tty_sigint
+_ed_tty_sigquit
+_ed_tty_sigtstp
+_ed_tty_start_output
+_ed_tty_stop_output
+_ed_unassigned
+_el_editmode
+_el_match
+_el_read_getfn
+_el_read_setfn
+_em_capitol_case
+_em_copy_prev_word
+_em_copy_region
+_em_delete_next_word
+_em_delete_or_list
+_em_delete_prev_char
+_em_exchange_mark
+_em_gosmacs_transpose
+_em_inc_search_next
+_em_inc_search_prev
+_em_kill_line
+_em_kill_region
+_em_lower_case
+_em_meta_next
+_em_next_word
+_em_set_mark
+_em_toggle_overwrite
+_em_universal_argument
+_em_upper_case
+_em_yank
+_fn_complete
+_fn_display_match_list
+_fn_filename_completion_function
+_fn_tilde_expand
+_func__get
+_help__get
+_hist_command
+_hist_convert
+_hist_end
+_hist_enlargebuf
+_hist_get
+_hist_init
+_hist_set
+_history_expansion_char
+_history_inhibit_expansion_function
+_history_no_expand_chars
+_history_subst_char
+_keymacro__decode_str
+_keymacro_add
+_keymacro_clear
+_keymacro_delete
+_keymacro_end
+_keymacro_get
+_keymacro_init
+_keymacro_kprint
+_keymacro_map_cmd
+_keymacro_map_str
+_keymacro_print
+_keymacro_reset
+_map_addfunc
+_map_bind
+_map_end
+_map_get_editor
+_map_init
+_map_init_emacs
+_map_init_vi
+_map_set_editor
+_parse__escape
+_parse__string
+_parse_cmd
+_parse_line
+_prompt_end
+_prompt_get
+_prompt_init
+_prompt_print
+_prompt_set
+_re_clear_display
+_re_clear_lines
+_re_fastaddc
+_re_goto_bottom
+_re_putc
+_re_refresh
+_re_refresh_cursor
+_read_finish
+_read_init
+_read_prepare
+_rl_catch_signals
+_rl_done
+_rl_event_hook
+_rl_linefunc
+_rl_startup1_hook
+_search_end
+_search_init
+_sig_clr
+_sig_end
+_sig_init
+_sig_set
+_snvis
+_strsnvis
+_strsnvisx
+_strsvis
+_strsvisx
+_svis
+_terminal__flush
+_terminal__putc
+_terminal_beep
+_terminal_bind_arrow
+_terminal_change_size
+_terminal_clear_EOL
+_terminal_clear_arrow
+_terminal_clear_screen
+_terminal_deletechars
+_terminal_echotc
+_terminal_end
+_terminal_get
+_terminal_get_size
+_terminal_gettc
+_terminal_init
+_terminal_insertwrite
+_terminal_move_to_char
+_terminal_move_to_line
+_terminal_overwrite
+_terminal_print_arrow
+_terminal_set
+_terminal_set_arrow
+_terminal_settc
+_terminal_telltc
+_terminal_writec
+_tty_bind_char
+_tty_cookedmode
+_tty_end
+_tty_init
+_tty_noquotemode
+_tty_quotemode
+_tty_rawmode
+_tty_stty
+_vi_add
+_vi_add_at_eol
+_vi_alias
+_vi_change_case
+_vi_change_meta
+_vi_change_to_eol
+_vi_command_mode
+_vi_comment_out
+_vi_delete_meta
+_vi_delete_prev_char
+_vi_end_big_word
+_vi_end_word
+_vi_histedit
+_vi_history_word
+_vi_insert
+_vi_insert_at_bol
+_vi_kill_line_prev
+_vi_list_or_eof
+_vi_match
+_vi_next_big_word
+_vi_next_char
+_vi_next_word
+_vi_paste_next
+_vi_paste_prev
+_vi_prev_big_word
+_vi_prev_char
+_vi_prev_word
+_vi_redo
+_vi_repeat_next_char
+_vi_repeat_prev_char
+_vi_repeat_search_next
+_vi_repeat_search_prev
+_vi_replace_char
+_vi_replace_mode
+_vi_search_next
+_vi_search_prev
+_vi_substitute_char
+_vi_substitute_line
+_vi_to_column
+_vi_to_history_line
+_vi_to_next_char
+_vi_to_prev_char
+_vi_undo
+_vi_undo_line
+_vi_yank
+_vi_yank_end
+_vi_zero
+_wcsdup

xcodescripts/install_misc.sh

@@ -0,0 +1,43 @@
+#!/bin/sh
+
+set -ex
+
+mkdir -p $DSTROOT/usr/include/readline $DSTROOT/usr/include/editline
+install -g $ALTERNATE_GROUP -o $ALTERNATE_OWNER -m $ALTERNATE_MODE $SRCROOT/src/histedit.h $DSTROOT/usr/include
+install -g $ALTERNATE_GROUP -o $ALTERNATE_OWNER -m $ALTERNATE_MODE $SRCROOT/src/editline/readline.h $DSTROOT/usr/include/editline
+for h in readline.h history.h ; do
+	ln -s -f ../editline/readline.h $DSTROOT/usr/include/readline/$h
+done
+
+[ "$ACTION" == "installhdrs" ] && exit 0
+
+if [ "${RC_ProjectName%_Sim}" != "${RC_ProjectName}" ] ; then
+	[ -z "${DSTROOT}" ] && exit 1
+	# Don't keep static libraries for the simulator SDK
+	rm -rf ${DSTROOT}/usr/local/lib
+fi
+
+mkdir -p $DSTROOT/usr/lib
+
+for l in libedit.2.tbd libedit.3.0.tbd libedit.tbd libreadline.tbd ; do
+	ln -s -f libedit.3.tbd $DSTROOT/usr/lib/$l
+done
+
+[ "$ACTION" == "installapi" ] && exit 0
+
+for l in libedit.2.dylib libedit.3.0.dylib libedit.dylib libreadline.dylib ; do
+	ln -s -f libedit.3.dylib $DSTROOT/usr/lib/$l
+done
+
+if [ "${RC_ProjectName%_Sim}" == "${RC_ProjectName}" ] ; then
+	mkdir -p $DSTROOT/usr/share/man/man{3,5}
+	install -m 0644 $SRCROOT/doc/editrc.5 $DSTROOT/usr/share/man/man5
+	install -m 0644 $SRCROOT/doc/editline.3 $DSTROOT/usr/share/man/man3
+	for m in el_deletestr.3 el_end.3 el_get.3 el_getc.3 el_gets.3 el_history.3 el_history_end.3 el_history_init.3 el_init.3 el_insertstr.3 el_line.3 el_parse.3 el_push.3 el_reset.3 el_resize.3 el_set.3 el_source.3 el_tok_end.3 el_tok_init.3 el_tok_line.3 el_tok_reset.3 el_tok_str.3 ; do
+		ln -s -f editline.3 $DSTROOT/usr/share/man/man3/$m
+	done
+fi
+
+mkdir -p $DSTROOT/usr/local/OpenSource{Licenses,Versions}
+install -g $ALTERNATE_GROUP -o $ALTERNATE_OWNER -m a=r $SRCROOT/local/libedit.plist $DSTROOT/usr/local/OpenSourceVersions
+/usr/bin/sed -e '1,2d' -e '/^$/,$d' $SRCROOT/src/el.c >$DSTROOT/usr/local/OpenSourceLicenses/libedit.txt

xcodescripts/libedit.xcconfig

@@ -0,0 +1,34 @@
+#include "<DEVELOPER_DIR>/Makefiles/CoreOS/Xcode/BSD.xcconfig"
+
+ARCHS = $(ARCHS_STANDARD_32_64_BIT)
+ONLY_ACTIVE_ARCH = NO
+DEBUG_INFORMATION_FORMAT = dwarf-with-dsym
+CODE_SIGN_IDENTITY = -
+INSTALL_PATH = /usr/lib
+COPY_PHASE_STRIP = YES
+STRIP_INSTALLED_PRODUCT = YES
+STRIP_STYLE = non-global
+DYLIB_COMPATIBILITY_VERSION = 2
+DYLIB_CURRENT_VERSION = 3.0
+DEAD_CODE_STRIPPING = YES
+EXECUTABLE_PREFIX = lib
+PRODUCT_NAME = edit.3
+ALWAYS_SEARCH_USER_PATHS = NO
+USER_HEADER_SEARCH_PATHS = src
+CURRENT_PROJECT_VERSION = $(RC_ProjectSourceVersion)
+VERSION_INFO_PREFIX = __
+VERSIONING_SYSTEM = apple-generic
+GCC_C_LANGUAGE_STANDARD = gnu99
+GCC_ENABLE_BUILTIN_FUNCTIONS = YES
+GCC_ENABLE_PASCAL_STRINGS = NO
+GCC_WARN_ABOUT_RETURN_TYPE = YES
+GCC_WARN_UNUSED_VARIABLE = YES
+PREBINDING = NO
+ZERO_LINK = NO
+IS_ZIPPERED = YES
+OTHER_LDFLAGS = $(inherited) -Wl,-unexported_symbols_list,$(SRCROOT)/unexports
+SUPPORTS_TEXT_BASED_API = YES
+TAPI_VERIFY_MODE = Pedantic
+OTHER_TAPI_FLAGS = -extra-public-header $(SRCROOT)/src/editline/readline.h -extra-public-header $(SRCROOT)/src/histedit.h
+INSTALLHDRS_COPY_PHASE = YES
+INSTALLHDRS_SCRIPT_PHASE = YES

xcodescripts/make_lists.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+set -x
+cd local
+S=$SRCROOT/src
+sh $S/makelist -h $S/vi.c >vi.h
+sh $S/makelist -h $S/emacs.c >emacs.h
+sh $S/makelist -h $S/common.c >common.h
+sh $S/makelist -bh $S/vi.c $S/emacs.c $S/common.c >help.h
+sh $S/makelist -fc vi.h emacs.h common.h >fcns.c
+sh $S/makelist -fh vi.h emacs.h common.h >fcns.h
+sh $S/makelist -bc $S/vi.c $S/emacs.c $S/common.c >help.c
+sh $S/makelist -n $S/tokenizer.c >tokenizern.c
+sh $S/makelist -n $S/history.c >historyn.c
+