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authorBrad King <brad.king@kitware.com>2003-12-05 15:45:16 (GMT)
committerBrad King <brad.king@kitware.com>2003-12-05 15:45:16 (GMT)
commitf791e1a80b4f42527b09c2de8635db121ddcb4bd (patch)
treeef0e081a78ebb74063e028fcb0b0e67597cbacca /Docs/cmake-mode.el
parent458fed969f175b66fd4d4259cc9ec6483f9f23cd (diff)
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ENH: New indentation implementation to support multi-line strings.
Diffstat (limited to 'Docs/cmake-mode.el')
-rw-r--r--Docs/cmake-mode.el152
1 files changed, 88 insertions, 64 deletions
diff --git a/Docs/cmake-mode.el b/Docs/cmake-mode.el
index 1e9af38..cca6f00 100644
--- a/Docs/cmake-mode.el
+++ b/Docs/cmake-mode.el
@@ -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)
-
- ; 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)
- )
-
- ; Start with previous non-blank line's indentation.
- (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))
- )
+ (if (cmake-line-starts-inside-string)
+ ()
+ (if (bobp)
+ (indent-line-to 0)
+ (let ((point-start (point))
+ token cur-indent)
+
+ (save-excursion
+ ; Search back for the last indented line.
+ (cmake-find-last-indented-line)
+
+ ; Start with the indentation on this line.
+ (setq cur-indent (current-indentation))
+
+ ; 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)