mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2024-12-11 14:14:23 +00:00
b621d05050
This will eventually be supported with a trivial macro, but those aren't standard texinfo yet; in the meantime, I think GDB is the only manual we print that uses these---and it wants appendices.
156 lines
4.7 KiB
Plaintext
156 lines
4.7 KiB
Plaintext
@ignore
|
|
This file is completely identical to hsuser.texinfo, except that it has the
|
|
reference to the programming manual removed. There are definately better ways
|
|
to do this!
|
|
|
|
This file documents the user interface to the GNU History library.
|
|
|
|
Copyright (C) 1988, 1991 Free Software Foundation, Inc.
|
|
Authored by Brian Fox.
|
|
|
|
Permission is granted to make and distribute verbatim copies of this manual
|
|
provided the copyright notice and this permission notice are preserved on
|
|
all copies.
|
|
|
|
Permission is granted to process this file through Tex and print the
|
|
results, provided the printed document carries copying permission notice
|
|
identical to this one except for the removal of this paragraph (this
|
|
paragraph not being relevant to the printed manual).
|
|
|
|
Permission is granted to copy and distribute modified versions of this
|
|
manual under the conditions for verbatim copying, provided also that the
|
|
GNU Copyright statement is available to the distributee, and provided that
|
|
the entire resulting derived work is distributed under the terms of a
|
|
permission notice identical to this one.
|
|
|
|
Permission is granted to copy and distribute translations of this manual
|
|
into another language, under the above conditions for modified versions.
|
|
@end ignore
|
|
|
|
@node Using History Interactively
|
|
@appendix Using History Interactively
|
|
|
|
This chapter describes how to use the GNU History Library interactively,
|
|
from a user's standpoint.
|
|
|
|
@menu
|
|
* History Interaction:: What it feels like using History as a user.
|
|
@end menu
|
|
|
|
@node History Interaction
|
|
@section History Interaction
|
|
@cindex expansion
|
|
|
|
The History library provides a history expansion feature that is similar
|
|
to the history expansion in Csh. The following text describes the sytax
|
|
that you use to manipulate the history information.
|
|
|
|
History expansion takes place in two parts. The first is to determine
|
|
which line from the previous history should be used during substitution.
|
|
The second is to select portions of that line for inclusion into the
|
|
current one. The line selected from the previous history is called the
|
|
@dfn{event}, and the portions of that line that are acted upon are
|
|
called @dfn{words}. The line is broken into words in the same fashion
|
|
that the Bash shell does, so that several English (or Unix) words
|
|
surrounded by quotes are considered as one word.
|
|
|
|
@menu
|
|
* Event Designators:: How to specify which history line to use.
|
|
* Word Designators:: Specifying which words are of interest.
|
|
* Modifiers:: Modifying the results of susbstitution.
|
|
@end menu
|
|
|
|
@node Event Designators
|
|
@subsection Event Designators
|
|
@cindex event designators
|
|
|
|
An event designator is a reference to a command line entry in the
|
|
history list.
|
|
|
|
@table @asis
|
|
|
|
@item @code{!}
|
|
Start a history subsititution, except when followed by a space, tab, or
|
|
the end of the line... @key{=} or @key{(}.
|
|
|
|
@item @code{!!}
|
|
Refer to the previous command. This is a synonym for @code{!-1}.
|
|
|
|
@item @code{!n}
|
|
Refer to command line @var{n}.
|
|
|
|
@item @code{!-n}
|
|
Refer to the command line @var{n} lines back.
|
|
|
|
@item @code{!string}
|
|
Refer to the most recent command starting with @var{string}.
|
|
|
|
@item @code{!?string}[@code{?}]
|
|
Refer to the most recent command containing @var{string}.
|
|
|
|
@end table
|
|
|
|
@node Word Designators
|
|
@subsection Word Designators
|
|
|
|
A @key{:} separates the event specification from the word designator. It
|
|
can be omitted if the word designator begins with a @key{^}, @key{$},
|
|
@key{*} or @key{%}. Words are numbered from the beginning of the line,
|
|
with the first word being denoted by a 0 (zero).
|
|
|
|
@table @code
|
|
|
|
@item 0 (zero)
|
|
The zero'th word. For many applications, this is the command word.
|
|
|
|
@item n
|
|
The @var{n}'th word.
|
|
|
|
@item ^
|
|
The first argument. that is, word 1.
|
|
|
|
@item $
|
|
The last argument.
|
|
|
|
@item %
|
|
The word matched by the most recent @code{?string?} search.
|
|
|
|
@item x-y
|
|
A range of words; @code{-@var{y}} Abbreviates @code{0-@var{y}}.
|
|
|
|
@item *
|
|
All of the words, excepting the zero'th. This is a synonym for @code{1-$}.
|
|
It is not an error to use @key{*} if there is just one word in the event.
|
|
The empty string is returned in that case.
|
|
|
|
@end table
|
|
|
|
@node Modifiers
|
|
@subsection Modifiers
|
|
|
|
After the optional word designator, you can add a sequence of one or more
|
|
of the following modifiers, each preceded by a @key{:}.
|
|
|
|
@table @code
|
|
|
|
@item #
|
|
The entire command line typed so far. This means the current command,
|
|
not the previous command, so it really isn't a word designator, and doesn't
|
|
belong in this section.
|
|
|
|
@item h
|
|
Remove a trailing pathname component, leaving only the head.
|
|
|
|
@item r
|
|
Remove a trailing suffix of the form @samp{.}@var{suffix}, leaving the basename.
|
|
|
|
@item e
|
|
Remove all but the suffix.
|
|
|
|
@item t
|
|
Remove all leading pathname components, leaving the tail.
|
|
|
|
@item p
|
|
Print the new command but do not execute it.
|
|
@end table
|