/usr/share/emacs/site-lisp/crm114-mode.el is in crm114 20100106-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 | ;;; crm114-mode.el --- major mode for editing crm114 scripts
;; Copyright (C) 2005 Haavard Kvaalen <havardk@kvaalen.no>
;; This file is under GPLv3, as described in COPYING.
;;
;; Keywords: languages
;;
;; To automatically invoke this mode whenever you edit a .crm file,
;; make sure crm114-mode.el is in your site's default .el directory,
;; and add the following to your .emacs file in your home directory
;; without the ';;' commenting in front, of course!
;;
;; (load "crm114-mode.el" )
;; (add-to-list 'auto-mode-alist '("\\.crm\\'" . crm114-mode))
;;
;; $Revision: 1.7 $
(defvar crm114-indent-level 4
"Indentation of blocks")
(defvar crm114-mode-syntax-table
(let ((table (make-syntax-table)))
(modify-syntax-entry ?# "< 4" table)
(modify-syntax-entry ?\n ">" table)
(modify-syntax-entry ?/ "\"" table)
(modify-syntax-entry ?\\ "\\ 3" table)
(modify-syntax-entry ?< "(>" table)
(modify-syntax-entry ?> ")<" table)
(modify-syntax-entry ?: "." table)
(modify-syntax-entry ?! "_" table)
(modify-syntax-entry ?\" "_" table)
(modify-syntax-entry ?$ "_" table)
(modify-syntax-entry ?% "_" table)
(modify-syntax-entry ?& "_" table)
(modify-syntax-entry ?' "_" table)
(modify-syntax-entry ?* "_" table)
(modify-syntax-entry ?+ "_" table)
(modify-syntax-entry ?, "_" table)
(modify-syntax-entry ?- "_" table)
(modify-syntax-entry ?. "_" table)
(modify-syntax-entry ?= "_" table)
(modify-syntax-entry ?? "_" table)
(modify-syntax-entry ?@ "_" table)
(modify-syntax-entry ?^ "_" table)
(modify-syntax-entry ?_ "_" table)
(modify-syntax-entry ?` "_" table)
(modify-syntax-entry ?| "_" table)
(modify-syntax-entry ?~ "_" table)
table))
(defvar crm114-mode-map
(let ((map (make-sparse-keymap)))
(define-key map "\t" 'crm114-indent-line)
(define-key map "}" 'crm114-electric-brace)
map))
(defvar crm114-font-lock-keywords
(list
;; goto labels
'("\\(^\\|;\\)\\s-*:\\(\\(:?\\sw\\|\\s_\\)+\\):\\s-*\\($\\|;\\|#\\)"
2 'font-lock-constant-face nil)
;; functions
'("\\(^\\|;\\)\\s-*:\\(\\(:?\\sw\\|\\s_\\)+\\):\\s-*("
2 'font-lock-function-name-face nil)
;; variables
'("\\(:\\*\\)?:\\([^: \t\n]+\\):" 2 'font-lock-variable-name-face nil)
;; statements
(list (concat "\\(^\\|;\\)\\s-*"
(regexp-opt
'("accept" "alius" "alter" "call" "classify" "eval" "exit"
"fail" "fault" "goto" "hash" "input" "insert" "intersect"
"isolate" "learn" "liaf" "match" "noop" "output" "return"
"syscall" "trap" "union" "window")
'words))
2 'font-lock-keyword-face nil)
))
(defvar crm114-font-lock-syntactic-keywords
(list
;; '#' and '/' are allowed within variable names so we need to
;; change their syntax at those places.
'(":[#@]:[^ \t\n]*:\\|:[^: \t\n]*:"
("#\\|/"
(progn
(goto-char (match-beginning 0))
(setq crm114-end-syntactic (match-end 0)))
(goto-char crm114-end-syntactic)
(0 "_")))))
(defun crm114-end-of-line ()
(save-excursion
(end-of-line)
(point)))
(defun crm114-calculate-indent ()
"Calculate and return indentation for the current line."
(save-excursion
(beginning-of-line)
(let (ret cont
(n 0)
(bol (point)))
(while (looking-at "[ \t]*}")
(goto-char (match-end 0))
(setq n (1- n)))
;; Find last line that is not empty and is not all comment
(while (and (or (= (forward-line -1) 0)
(progn
(setq ret 0)
nil))
(looking-at "[ \t]*\\(#\\|$\\)")))
(crm114-beginning-of-syntax)
(or
ret
(let ((indent (current-indentation))
(end (crm114-end-of-line))
(search-string (concat "\\(#\\)\\|\\(/\\)\\|\\(:\\)\\|"
"\\({\\)\\|\\(}\\)\\|\\(\\\\\\)?$")))
;; Leading closing brace affects previous line
(while (looking-at "[ \t]*}")
(goto-char (match-end 0)))
(while (and (re-search-forward search-string end t)
(cond ((match-beginning 1) ; comment
(re-search-forward "\\\\#" end t))
((match-beginning 2) ; string
;; The extra paranthesis are here to work
;; around what seems to be a bug seen on
;; xemacs 21.4.6 (on debian)
(while (and (not (and (looking-at "/\\|\\(.*?[^\\\n]\\)/")
(goto-char (match-end 0))))
(forward-line 1)
(setq end (crm114-end-of-line))
(or (< (point) bol)
(not (setq ret 0)))))
t)
((match-beginning 3) ; variable
(goto-char (match-beginning 3))
(crm114-skip-variable end))
((match-beginning 4) ; opening brace
(setq n (1+ n)))
((match-beginning 5) ; closing brace
(setq n (1- n)))
(t ; eol
(setq cont (match-beginning 6))
(forward-line 1)
(setq end (crm114-end-of-line))))
(< (point) bol)
(not ret)))
(or ret
(progn
(when cont
(setq n (+ n 2)))
(+ indent (* n crm114-indent-level)))))))))
(defun crm114-indent-line ()
(interactive)
(let (beg
(pos (- (point-max) (point)))
(indent (crm114-calculate-indent)))
(beginning-of-line)
(setq beg (point))
(skip-chars-forward " \t")
(delete-region beg (point))
(indent-to (crm114-calculate-indent))
(if (> (- (point-max) pos) (point))
(goto-char (- (point-max) pos)))))
(defun crm114-electric-brace (arg)
(interactive "p")
(if (> arg 0)
(progn
(insert-char last-command-char arg)
(crm114-indent-line)
(delete-char (- arg))
(self-insert-command arg))))
(defun crm114-skip-variable (max)
(unless (looking-at ":")
(error "Not at variable start"))
(if (looking-at ":[#@]:\\([^ \t\n]*\\)\\(:\\)")
(progn
(goto-char (match-beginning 1))
(let ((last (match-beginning 2))
(end (match-end 2)))
(when (re-search-forward ":" last t)
(goto-char (match-beginning 0))
(crm114-skip-variable last))
(goto-char end)))
(if (looking-at ":\\*:[^ \t\n:]*:")
(goto-char (match-end 0))
(goto-char (1+ (point)))
(re-search-forward ":" max 'to-end))))
(defun crm114-beginning-of-syntax ()
"Go backwards until the start of the current statement."
(beginning-of-line)
(when (> (- (point) (point-min)) 1)
(let ((pos (point)))
(goto-char (- (point) 2))
(if (looking-at "\\\\$")
(progn
(beginning-of-line)
(while (and (or (re-search-forward "\\(#\\)\\|\\(/\\)\\|\\(:\\)" pos t)
(progn
(crm114-beginning-of-syntax)
nil))
(cond ((match-beginning 1)
(if (re-search-forward "\\\\#" pos t)
t
(goto-char pos)
nil))
((match-beginning 2)
(if (looking-at "/\\|.*?[^\\\n]/")
(goto-char (match-end 0))
(crm114-beginning-of-syntax)
nil))
((match-beginning 3)
(goto-char (match-beginning 3))
(crm114-skip-variable pos)
t)))))
(goto-char pos)))))
(defun crm114-mode ()
"Major mode for editing crm scripts.
CRM114, also known as The Controllable Regex Mutilator is a language
designed for implementation of contextual filters.
Turning on crm114 mode runs `crm114-mode-hook'."
(interactive)
(kill-all-local-variables)
(setq mode-name "crm114")
(setq major-mode 'crm114-mode)
(use-local-map crm114-mode-map)
(set-syntax-table crm114-mode-syntax-table)
(make-local-variable 'indent-line-function)
(setq indent-line-function 'crm114-indent-line)
(setq font-lock-defaults
'(crm114-font-lock-keywords
nil nil nil
crm114-beginning-of-syntax
(font-lock-syntactic-keywords . crm114-font-lock-syntactic-keywords)))
(make-local-variable 'comment-start)
(setq comment-start "# ")
(make-local-variable 'comment-end)
(setq comment-end "")
(make-local-variable 'comment-start-skip)
(setq comment-start-skip "#+[ \t]*")
(run-hooks 'crm114-mode-hook))
(provide 'crm114-mode)
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