blob: 0cd7b3e9fcea2b6a86508a0315acebaca466ada5 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
;=============================================================================
;
; Program: CMake - Cross-Platform Makefile Generator
; Module: $RCSfile$
;
; Copyright (c) 2000-$Date$ Kitware, Inc., Insight Consortium. All rights reserved.
; See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
;
; This software is distributed WITHOUT ANY WARRANTY; without even
; the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
; PURPOSE. See the above copyright notices for more information.
;
;=============================================================================
;;; cmake-mode.el --- major-mode for editing CMake sources
;------------------------------------------------------------------------------
;;; Commentary:
;; Provides syntax highlighting and indentation for CMakeLists.txt and
;; *.cmake source files.
;;
;; Add this code to your .emacs file to use the mode:
;;
;; (setq load-path (cons (expand-file-name "/dir/with/cmake-mode") load-path))
;; (require 'cmake-mode)
;; (setq auto-mode-alist
;; (append '(("CMakeLists\\.txt" . cmake-mode)
;; ("\\.cmake$" . cmake-mode))
;; auto-mode-alist))
;------------------------------------------------------------------------------
;;; Code:
;;
;; Regular expressions used by line indentation function.
;;
(defconst cmake-regex-blank "^[ \t]*$")
(defconst cmake-regex-comment "#.*")
(defconst cmake-regex-paren-left "(")
(defconst cmake-regex-paren-right ")")
(defconst cmake-regex-argument-quoted
"\"\\([^\"\\\\]\\|\\\\\\(.\\|\n\\)\\)*\"")
(defconst cmake-regex-argument-unquoted
"\\([^ \t\r\n()#\"\\\\]\\|\\\\.\\)\\([^ \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\\|WHILE\\)$")
(defconst cmake-regex-block-close
"^[ \t]*\\(ENDIF\\|ENDFOREACH\\|ENDMACRO\\|ELSE\\|ENDWHILE\\)[ \t]*(")
;------------------------------------------------------------------------------
;;
;; Helper functions for line indentation function.
;;
(defun cmake-line-starts-inside-string ()
"Determine whether the beginning of the current line is in a string."
(if (save-excursion
(beginning-of-line)
(let ((parse-end (point)))
(beginning-of-buffer)
(nth 3 (parse-partial-sexp (point) parse-end))
)
)
t
nil
)
)
(defun cmake-find-last-indented-line ()
"Move to the beginning of the last line that has meaningful indentation."
(let ((point-start (point))
region)
(forward-line -1)
(setq region (buffer-substring-no-properties (point) point-start))
(while (and (not (bobp))
(or (looking-at cmake-regex-blank)
(not (and (string-match cmake-regex-indented region)
(= (length region) (match-end 0))))))
(forward-line -1)
(setq region (buffer-substring-no-properties (point) point-start))
)
)
)
;------------------------------------------------------------------------------
;;
;; Line indentation function.
;;
(defun cmake-indent ()
"Indent current line as CMAKE code."
(interactive)
(beginning-of-line)
(if (cmake-line-starts-inside-string)
()
(if (bobp)
(indent-line-to 0)
(let ((point-start (point))
token cur-indent)
(save-excursion
; Search back for the last indented line.
(cmake-find-last-indented-line)
; Start with the indentation on this line.
(setq cur-indent (current-indentation))
; Search forward counting tokens that adjust indentation.
(while (re-search-forward cmake-regex-token point-start t)
(setq token (match-string 0))
(if (string-match (concat "^" cmake-regex-paren-left "$") token)
(setq cur-indent (+ cur-indent cmake-tab-width))
)
(if (string-match (concat "^" cmake-regex-paren-right "$") token)
(setq cur-indent (- cur-indent cmake-tab-width))
)
(if (and
(string-match cmake-regex-block-open token)
(looking-at (concat "[ \t]*" cmake-regex-paren-left))
)
(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))
)
; Indent this line by the amount selected.
(if (< cur-indent 0)
(indent-line-to 0)
(indent-line-to cur-indent)
)
)
)
)
)
;------------------------------------------------------------------------------
;;
;; Keyword highlighting regex-to-face map.
;;
(defconst cmake-font-lock-keywords
(list '("^[ \t]*\\(\\w+\\)[ \t]*(" 1 font-lock-function-name-face))
"Highlighting expressions for CMAKE mode."
)
;------------------------------------------------------------------------------
;;
;; Syntax table for this mode. Initialize to nil so that it is
;; regenerated when the cmake-mode function is called.
;;
(defvar cmake-mode-syntax-table nil "Syntax table for cmake-mode.")
(setq cmake-mode-syntax-table nil)
;;
;; User hook entry point.
;;
(defvar cmake-mode-hook nil)
;;
;; Indentation increment.
;;
(defvar cmake-tab-width 2)
;------------------------------------------------------------------------------
;;
;; CMake mode startup function.
;;
(defun cmake-mode ()
"Major mode for editing CMake listfiles."
(interactive)
(kill-all-local-variables)
(setq major-mode 'cmake-mode)
(setq mode-name "CMAKE")
; Create the syntax table
(setq cmake-mode-syntax-table (make-syntax-table))
(set-syntax-table cmake-mode-syntax-table)
(modify-syntax-entry ?_ "w" cmake-mode-syntax-table)
(modify-syntax-entry ?\( "()" cmake-mode-syntax-table)
(modify-syntax-entry ?\) ")(" cmake-mode-syntax-table)
(modify-syntax-entry ?# "<" cmake-mode-syntax-table)
(modify-syntax-entry ?\n ">" cmake-mode-syntax-table)
; Setup font-lock mode.
(make-local-variable 'font-lock-defaults)
(setq font-lock-defaults '(cmake-font-lock-keywords))
; Setup indentation function.
(make-local-variable 'indent-line-function)
(setq indent-line-function 'cmake-indent)
; Setup comment syntax.
(make-local-variable 'comment-start)
(setq comment-start "#")
; Run user hooks.
(run-hooks 'cmake-mode-hook))
; This file provides cmake-mode.
(provide 'cmake-mode)
;;; cmake-mode.el ends here
|
