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ENH: New indentation implementation to support multi-line strings.

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Brad King 2003-12-05 10:45:16 -05:00
parent 458fed969f
commit f791e1a80b
1 changed files with 85 additions and 61 deletions
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146
Docs/cmake-mode.el
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@ -31,85 +31,109 @@
(defvar cmake-tab-width 2)
; Regular expressions used by line indentation function.
(defconst cmake-regex-blank "^[ \t]*$")
(defconst cmake-regex-comment "#.*")
(defconst cmake-regex-identifier "[A-Za-z][A-Za-z0-9_]*")
(defconst cmake-regex-quoted "\"\\([^\n\"\\\\]\\|\\\\.\\)*\"")
(defconst cmake-regex-arguments (concat "\\(" cmake-regex-quoted
"\\|" "[^\n()#\"\\\\]"
"\\|" "\\\\."
"\\|" "\\$(" cmake-regex-identifier ")"
"\\)*"))
(defconst cmake-indent-comment-line (concat "^[ \t]*" cmake-regex-comment))
(defconst cmake-indent-blank-regex "^[ \t]*$")
(defconst cmake-indent-open-regex (concat "^[ \t]*" cmake-regex-identifier
"[ \t]*(" cmake-regex-arguments
"\\(" cmake-regex-comment "\\)?"
"\n"))
(defconst cmake-indent-close-regex (concat "^" cmake-regex-arguments
")[ \t]*"
"\\(" cmake-regex-comment "\\)?"
"\n"))
(defconst cmake-indent-begin-regex "^[ \t]*\\(IF\\|MACRO\\|FOREACH\\|ELSE\\)[ \t]*(")
(defconst cmake-indent-end-regex "^[ \t]*\\(ENDIF\\|ENDFOREACH\\|ENDMACRO\\|ELSE\\)[ \t]*(")
(defconst cmake-regex-paren-left "(")
(defconst cmake-regex-paren-right ")")
(defconst cmake-regex-argument-quoted "\"\\([^\"\\\\]\\|\\\\\\(.\\|\n\\)\\)*\"")
(defconst cmake-regex-argument-unquoted "\\([^ \t\r\n()#\"\\\\]\\|\\\\.\\)+")
(defconst cmake-regex-token (concat "\\(" cmake-regex-comment
"\\|" cmake-regex-paren-left
"\\|" cmake-regex-paren-right
"\\|" cmake-regex-argument-unquoted
"\\|" cmake-regex-argument-quoted
"\\)"))
(defconst cmake-regex-indented (concat "^\\("
cmake-regex-token
"\\|" "[ \t\r\n]"
"\\)*"))
(defconst cmake-regex-block-open "^\\(IF\\|MACRO\\|FOREACH\\|ELSE\\)")
(defconst cmake-regex-block-close "^[ \t]*\\(ENDIF\\|ENDFOREACH\\|ENDMACRO\\|ELSE\\)[ \t]*(")
(defun cmake-line-starts-inside-string ()
"Determine whether the beginning of the current line is in a string."
(if (save-excursion
(beginning-of-line)
(let ((parse-end (point)))
(beginning-of-buffer)
(nth 3 (parse-partial-sexp (point) parse-end))
)
)
t
nil
)
)
(defun cmake-find-last-indented-line ()
"Move to the beginning of the last line that has meaningful indentation."
(let ((point-start (point))
region)
(forward-line -1)
(setq region (buffer-substring-no-properties (point) point-start))
(while (and (not (bobp))
(or (looking-at cmake-regex-blank)
(not (and (string-match cmake-regex-indented region)
(= (length region) (match-end 0))))))
(forward-line -1)
(setq region (buffer-substring-no-properties (point) point-start))
)
)
)
; Line indentation function.
(defun cmake-indent ()
"Indent current line as CMAKE code."
(interactive)
(beginning-of-line)
(if (bobp)
(indent-line-to 0)
(let (cur-indent)
(if (cmake-line-starts-inside-string)
()
(if (bobp)
(indent-line-to 0)
(let ((point-start (point))
token cur-indent)
; Search back for previous non-blank line.
(save-excursion
(forward-line -1)
(while (and (not (bobp)) (looking-at cmake-indent-blank-regex))
(forward-line -1)
)
(save-excursion
; Search back for the last indented line.
(cmake-find-last-indented-line)
; Start with previous non-blank line's indentation.
(setq cur-indent (current-indentation))
; Start with the indentation on this line.
(setq cur-indent (current-indentation))
; If previous line is a comment line, just use its
; indentation. Otherwise, adjust indentation based on the
; line's contents.
(if (not (looking-at cmake-indent-comment-line))
(progn
; If previous line begins a block, we indent this line.
(if (looking-at cmake-indent-begin-regex)
(setq cur-indent (+ cur-indent cmake-tab-width))
)
; If previous line opens a command invocation, we indent
; this line.
(if (looking-at cmake-indent-open-regex)
(setq cur-indent (+ cur-indent cmake-tab-width))
)
; If previous line closes a command invocation, we unindent
; this line.
(if (looking-at cmake-indent-close-regex)
(setq cur-indent (- cur-indent cmake-tab-width))
)
; Search forward counting tokens that adjust indentation.
(while (re-search-forward cmake-regex-token point-start t)
(setq token (match-string 0))
(if (string-match cmake-regex-paren-left token)
(setq cur-indent (+ cur-indent cmake-tab-width))
)
(if (string-match cmake-regex-paren-right token)
(setq cur-indent (- cur-indent cmake-tab-width))
)
(if (string-match cmake-regex-block-open token)
(setq cur-indent (+ cur-indent cmake-tab-width))
)
)
)
)
; If this is the end of a block, decrease indentation.
(if (looking-at cmake-regex-block-close)
(setq cur-indent (- cur-indent cmake-tab-width))
)
; If this line ends a block, we unindent it.
(if (looking-at cmake-indent-end-regex)
(setq cur-indent (- cur-indent cmake-tab-width))
)
; Indent this line by the amount selected.
(if (< cur-indent 0)
(indent-line-to 0)
(indent-line-to cur-indent)
; Indent this line by the amount selected.
(if (< cur-indent 0)
(indent-line-to 0)
(indent-line-to cur-indent)
)
)
)
)
)
; (regexp-opt '("ABSTRACT_FILES" "ADD_CUSTOM_COMMAND" "ADD_CUSTOM_TARGET" "ADD_DEFINITIONS" "ADD_DEPENDENCIES" "ADD_EXECUTABLE" "ADD_LIBRARY" "ADD_TEST" "AUX_SOURCE_DIRECTORY" "BUILD_COMMAND" "BUILD_NAME" "CMAKE_MINIMUM_REQUIRED" "CONFIGURE_FILE" "CREATE_TEST_SOURCELIST" "CREATE_TEST_SOURCELIST " "ELSE" "ENABLE_TESTING" "ENABLE_TESTING " "ENDFOREACH" "ENDIF" "EXEC_PROGRAM" "EXPORT_LIBRARY_DEPENDENCIES" "FIND_FILE" "FIND_LIBRARY" "FIND_PACKAGE" "FIND_PATH" "FIND_PROGRAM" "FLTK_WRAP_UI" "FOREACH" "GET_CMAKE_PROPERTY" "GET_FILENAME_COMPONENT" "GET_SOURCE_FILE_PROPERTY" "GET_TARGET_PROPERTY" "IF" "INCLUDE" "INCLUDE_DIRECTORIES" "INCLUDE_EXTERNAL_MSPROJECT" "INCLUDE_REGULAR_EXPRESSION" "INSTALL_FILES" "INSTALL_PROGRAMS" "INSTALL_TARGETS" "ITK_WRAP_TCL" "LINK_DIRECTORIES" "LINK_LIBRARIES" "LOAD_CACHE" "LOAD_COMMAND" "MACRO" "MAKE_DIRECTORY" "MARK_AS_ADVANCED" "MESSAGE" "OPTION" "OUTPUT_REQUIRED_FILES" "PROJECT" "QT_WRAP_CPP" "QT_WRAP_UI" "REMOVE" "SEPARATE_ARGUMENTS" "SET" "SET_SOURCE_FILES_PROPERTIES" "SET_TARGET_PROPERTIES" "SITE_NAME" "SOURCE_FILES" "SOURCE_FILES_REMOVE" "SOURCE_GROUP" "STRING" "SUBDIRS" "SUBDIR_DEPENDS" "TARGET_LINK_LIBRARIES" "TRY_COMPILE" "TRY_RUN" "USE_MANGLED_MESA" "UTILITY_SOURCE" "VARIABLE_REQUIRES" "VTK_MAKE_INSTANTIATOR" "VTK_MAKE_INSTANTIATOR " "VTK_WRAP_JAVA" "VTK_WRAP_PYTHON" "VTK_WRAP_TCL" "WRAP_EXCLUDE_FILES" "WRITE_FILE" ) t)
; run the above in the scatch buffer to generate the string that
; goes in (list '("the regexp string" . font-lock-function-name-face)