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e8af40ee | 1 | ;;; meta-mode.el --- major mode for editing Metafont or MetaPost sources |
6b279740 | 2 | |
9b026d9f GM |
3 | ;; Copyright (C) 1997, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, |
4 | ;; 2009, 2010 Free Software Foundation, Inc. | |
6b279740 RS |
5 | |
6 | ;; Author: Ulrik Vieth <vieth@thphy.uni-duesseldorf.de> | |
7 | ;; Version: 1.0 | |
8 | ;; Keywords: Metafont, MetaPost, tex, languages | |
9 | ||
1eadb66c | 10 | ;; This file is part of GNU Emacs. |
6b279740 | 11 | |
b1fc2b50 | 12 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
6b279740 | 13 | ;; it under the terms of the GNU General Public License as published by |
b1fc2b50 GM |
14 | ;; the Free Software Foundation, either version 3 of the License, or |
15 | ;; (at your option) any later version. | |
6b279740 | 16 | |
1eadb66c | 17 | ;; GNU Emacs is distributed in the hope that it will be useful, |
6b279740 RS |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
21 | ||
22 | ;; You should have received a copy of the GNU General Public License | |
b1fc2b50 | 23 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
6b279740 RS |
24 | |
25 | ;;; Commentary: | |
26 | ||
27 | ;; Description: | |
28 | ;; | |
29 | ;; This Emacs Lisp package provides a major mode for editing Metafont | |
30 | ;; or MetaPost sources. It includes all the necessary code to set up | |
31 | ;; a major mode including an approriate syntax table, keymap, and a | |
32 | ;; mode-specific pull-down menu. It also provides a sophisticated set | |
33 | ;; of font-lock patterns, a fancy indentation function adapted from | |
818226ac | 34 | ;; AUCTeX's latex.el, and some basic mode-specific editing functions |
6b279740 RS |
35 | ;; such as functions to move to the beginning or end of the enclosing |
36 | ;; environment, or to mark, re-indent, or comment-out environments. | |
37 | ;; On the other hand, it doesn't yet provide any functionality for | |
38 | ;; running Metafont or MetaPost in a shell buffer form within Emacs, | |
39 | ;; but such functionality might be added later, either as part of this | |
40 | ;; package or as a separate Emacs Lisp package. | |
41 | ||
42 | ;; Installation: | |
a1506d29 | 43 | ;; |
6b279740 RS |
44 | ;; An interface to running Metafont or MetaPost as a shell process |
45 | ;; from within Emacs is currently under development as a separate | |
46 | ;; Emacs Lisp package (meta-buf.el). In order to have that package | |
47 | ;; loaded automatically when first entering Metafont or MetaPost mode, | |
48 | ;; you might use the load-hook provided in this package by adding | |
49 | ;; these lines to your startup file: | |
a1506d29 JB |
50 | ;; |
51 | ;; (add-hook 'meta-mode-load-hook | |
8a4c5051 | 52 | ;; (lambda () (require 'meta-buf))) |
6b279740 RS |
53 | ;; |
54 | ;; The add-on package loaded this way may in turn make use of the | |
55 | ;; mode-hooks provided in this package to activate additional features | |
56 | ;; when entering Metafont or MetaPost mode. | |
57 | ||
58 | ;; Font Lock Support: | |
59 | ;; | |
60 | ;; If you are using global-font-lock-mode (introduced in Emacs 19.31), | |
61 | ;; fontification in Metafont and/or MetaPost mode will be activated | |
62 | ;; automatically. To speed up fontification for the rather complex | |
63 | ;; patterns used in these modes, it may be a good idea to activate | |
64 | ;; lazy-lock as a font-lock-support-mode (introduced in Emacs 19.32) | |
65 | ;; by adding these lines to your startup file: | |
66 | ;; | |
67 | ;; (global-font-lock-mode t) | |
68 | ;; (setq font-lock-support-mode 'lazy-lock-mode) | |
69 | ;; | |
70 | ;; If you are using an older version of Emacs, which doesn't provide | |
71 | ;; global-font-lock-mode or font-lock-support-mode, you can also | |
72 | ;; activate fontification in Metafont and/or MetaPost mode by adding | |
73 | ;; the following lines to your startup file: | |
a1506d29 | 74 | ;; |
6b279740 RS |
75 | ;; (add-hook 'meta-common-mode-hook 'turn-on-font-lock) |
76 | ;; (add-hook 'meta-common-mode-hook 'turn-on-lazy-lock) | |
77 | ||
78 | ;; Customization: | |
79 | ;; | |
80 | ;; Following the usual Emacs Lisp coding conventions, the major modes | |
81 | ;; defined in this package provide several hook variables to allow for | |
82 | ;; local customization when entering the modes. In particular, there | |
83 | ;; is a `meta-common-mode-hook' which applies to both modes as well as | |
84 | ;; `metafont-mode-hook' and `metapost-mode-hook' which apply to the | |
85 | ;; individual modes. In addition, there are several variables and | |
86 | ;; regexps controlling e.g. the behavior of the indentation function, | |
87 | ;; which may be customized via `edit-options'. Please refer to the | |
88 | ;; docstrings in the code below for details. | |
89 | ||
90 | ;; Availability: | |
91 | ;; | |
92 | ;; This package is currently available via my "TeX Software" WWW page: | |
93 | ;; | |
94 | ;; http://www.thphy.uni-duesseldorf.de/~vieth/subjects/tex/software.html | |
95 | ;; | |
96 | ;; As of this version 1.0, this package will be uploaded to CTAN | |
97 | ;; archives, where it shall find a permanent home, presumably in | |
98 | ;; tex-archive/support/emacs-modes. It will also be submitted for | |
99 | ;; integration into the GNU Emacs distribution at that time. | |
100 | ;; | |
101 | ;; History: | |
102 | ;; | |
103 | ;; v 0.0 -- 1997/02/01 UV Started writing meta-mode.el. | |
104 | ;; v 0.1 -- 1997/02/02 UV Added preliminary set of font-lock patterns. | |
105 | ;; v 0.2 -- 1997/02/03 UV Improved and debugged font-lock patterns. | |
106 | ;; Added indent-line-function for TAB. | |
107 | ;; v 0.3 -- 1997/02/17 UV Improved font-lock patterns and syntax table. | |
108 | ;; Improved and debbuged indentation function. | |
109 | ;; v 0.4 -- 1997/02/18 UV Added functions to indent regions for M-C-q, | |
110 | ;; also added a preliminary mode-specific menu. | |
a1506d29 | 111 | ;; v 0.5 -- 1997/02/19 UV Added functions to skip to next or previous |
6b279740 RS |
112 | ;; defun and to re-indent or comment-out defuns. |
113 | ;; v 0.6 -- 1997/02/20 UV More debugging, testing and clean-up. | |
114 | ;; v 0.7 -- 1997/02/22 UV Use easymenu to define mode-specific menu. | |
115 | ;; v 0.8 -- 1997/02/24 UV Added completion function for M-TAB. | |
116 | ;; v 0.9 -- 1997/03/08 UV Added fill-paragraph function for comments. | |
117 | ;; Also fixed a few remaining font-lock problems. | |
118 | ;; Added meta-mode-load-hook to load meta-buf.el. | |
119 | ;; v 1.0 -- 1997/04/07 UV Cleanup for official public release. | |
120 | ;; | |
121 | ;; Historical Footnote: | |
122 | ;; | |
123 | ;; This package was begun on February 1, 1997, exactly 20 years after | |
124 | ;; the genesis of TeX took place according to Don Knuth's own account | |
ff319790 | 125 | ;; (cf. ``The Errors of TeX'', reprinted in ``Literate Programming'', |
6b279740 RS |
126 | ;; Chapter 10, p. 249). What better date could there be to choose? |
127 | ;; | |
128 | ||
129 | \f | |
130 | ;;; Code: | |
131 | ||
132 | (require 'easymenu) | |
133 | ||
28d16ed3 AS |
134 | (defgroup meta-font nil |
135 | "Major mode for editing Metafont or MetaPost sources." | |
8ec3bce0 | 136 | :link '(custom-group-link :tag "Font Lock Faces group" font-lock-faces) |
28d16ed3 AS |
137 | :group 'languages) |
138 | ||
6b279740 RS |
139 | ;;; Fontification. |
140 | ||
141 | (defvar meta-font-lock-keywords | |
142 | (let ((input-keywords | |
143 | "\\(input\\|generate\\)") | |
144 | (begin-keywords | |
145 | (concat "\\(begin\\(char\\|fig\\|graph\\|logochar\\)\\|" | |
146 | "\\cmchar\\|dcchar\\|ecchar\\)")) | |
147 | (end-keywords | |
148 | "\\(end\\(char\\|fig\\|graph\\)\\)") | |
149 | (macro-keywords-1 | |
150 | "\\(def\\|let\\|mode_def\\|vardef\\)") | |
151 | (macro-keywords-2 | |
152 | "\\(primarydef\\|secondarydef\\|tertiarydef\\)") | |
153 | ;(make-regexp | |
154 | ; '("expr" "suffix" "text" "primary" "secondary" "tertiary") t) | |
155 | (args-keywords | |
156 | (concat "\\(expr\\|primary\\|s\\(econdary\\|uffix\\)\\|" | |
157 | "te\\(rtiary\\|xt\\)\\)")) | |
158 | ;(make-regexp | |
159 | ; '("boolean" "color" "numeric" "pair" "path" "pen" "picture" | |
160 | ; "string" "transform" "newinternal") t) | |
161 | (type-keywords | |
162 | (concat "\\(boolean\\|color\\|n\\(ewinternal\\|umeric\\)\\|" | |
163 | "p\\(a\\(ir\\|th\\)\\|en\\|icture\\)\\|string\\|" | |
164 | "transform\\)")) | |
165 | ;(make-regexp | |
166 | ; '("for" "forever" "forsuffixes" "endfor" | |
167 | ; "step" "until" "upto" "downto" "thru" "within" | |
168 | ; "iff" "if" "elseif" "else" "fi" "exitif" "exitunless" | |
169 | ; "let" "def" "vardef" "enddef" "mode_def" | |
170 | ; "true" "false" "known" "unknown" "and" "or" "not" | |
171 | ; "save" "interim" "inner" "outer" "relax" | |
172 | ; "begingroup" "endgroup" "expandafter" "scantokens" | |
173 | ; "generate" "input" "endinput" "end" "bye" | |
174 | ; "message" "errmessage" "errhelp" "special" "numspecial" | |
175 | ; "readstring" "readfrom" "write") t) | |
176 | (syntactic-keywords | |
177 | (concat "\\(and\\|b\\(egingroup\\|ye\\)\\|" | |
178 | "d\\(ef\\|ownto\\)\\|e\\(lse\\(\\|if\\)" | |
179 | "\\|nd\\(\\|def\\|for\\|group\\|input\\)" | |
180 | "\\|rr\\(help\\|message\\)" | |
181 | "\\|x\\(it\\(if\\|unless\\)\\|pandafter\\)\\)\\|" | |
182 | "f\\(alse\\|i\\|or\\(\\|ever\\|suffixes\\)\\)\\|" | |
183 | "generate\\|i\\(ff?\\|n\\(ner\\|put\\|terim\\)\\)\\|" | |
184 | "known\\|let\\|m\\(essage\\|ode_def\\)\\|" | |
185 | "n\\(ot\\|umspecial\\)\\|o\\(r\\|uter\\)\\|" | |
186 | "re\\(ad\\(from\\|string\\)\\|lax\\)\\|" | |
187 | "s\\(ave\\|cantokens\\|pecial\\|tep\\)\\|" | |
188 | "t\\(hru\\|rue\\)\\|" | |
189 | "u\\(n\\(known\\|til\\)\\|pto\\)\\|" | |
190 | "vardef\\|w\\(ithin\\|rite\\)\\)")) | |
191 | ) | |
192 | (list | |
193 | ;; embedded TeX code in btex ... etex | |
194 | (cons (concat "\\(btex\\|verbatimtex\\)" | |
89c19c1e | 195 | "[ \t\f]+\\(.*\\)[ \t\f]+" |
6b279740 RS |
196 | "\\(etex\\)") |
197 | '((1 font-lock-keyword-face) | |
198 | (2 font-lock-string-face) | |
199 | (3 font-lock-keyword-face))) | |
200 | ;; unary macro definitions: def, vardef, let | |
201 | (cons (concat "\\<" macro-keywords-1 "\\>" | |
89c19c1e | 202 | "[ \t\f]+\\(\\sw+\\|\\s_+\\|\\s.+\\)") |
6b279740 RS |
203 | '((1 font-lock-keyword-face) |
204 | (2 font-lock-function-name-face))) | |
205 | ;; binary macro defintions: <leveldef> x operator y | |
206 | (cons (concat "\\<" macro-keywords-2 "\\>" | |
89c19c1e MC |
207 | "[ \t\f]+\\(\\sw+\\)" |
208 | "[ \t\f]*\\(\\sw+\\|\\s.+\\)" | |
209 | "[ \t\f]*\\(\\sw+\\)") | |
6b279740 RS |
210 | '((1 font-lock-keyword-face) |
211 | (2 font-lock-variable-name-face nil t) | |
212 | (3 font-lock-function-name-face nil t) | |
213 | (4 font-lock-variable-name-face nil t))) | |
214 | ;; variable declarations: numeric, pair, color, ... | |
215 | (cons (concat "\\<" type-keywords "\\>" | |
89c19c1e | 216 | "\\([ \t\f]+\\(\\sw+\\)\\)*") |
6b279740 RS |
217 | '((1 font-lock-type-face) |
218 | (font-lock-match-meta-declaration-item-and-skip-to-next | |
219 | (goto-char (match-end 1)) nil | |
220 | (1 font-lock-variable-name-face nil t)))) | |
221 | ;; argument declarations: expr, suffix, text, ... | |
222 | (cons (concat "\\<" args-keywords "\\>" | |
89c19c1e | 223 | "\\([ \t\f]+\\(\\sw+\\|\\s_+\\)\\)*") |
6b279740 RS |
224 | '((1 font-lock-type-face) |
225 | (font-lock-match-meta-declaration-item-and-skip-to-next | |
226 | (goto-char (match-end 1)) nil | |
227 | (1 font-lock-variable-name-face nil t)))) | |
228 | ;; special case of arguments: expr x of y | |
89c19c1e MC |
229 | (cons (concat "\\(expr\\)[ \t\f]+\\(\\sw+\\)" |
230 | "[ \t\f]+\\(of\\)[ \t\f]+\\(\\sw+\\)") | |
6b279740 RS |
231 | '((1 font-lock-type-face) |
232 | (2 font-lock-variable-name-face) | |
233 | (3 font-lock-keyword-face nil t) | |
234 | (4 font-lock-variable-name-face nil t))) | |
235 | ;; syntactic keywords | |
236 | (cons (concat "\\<" syntactic-keywords "\\>") | |
237 | 'font-lock-keyword-face) | |
238 | ;; beginchar, beginfig | |
239 | (cons (concat "\\<" begin-keywords "\\>") | |
240 | 'font-lock-keyword-face) | |
241 | ;; endchar, endfig | |
242 | (cons (concat "\\<" end-keywords "\\>") | |
243 | 'font-lock-keyword-face) | |
244 | ;; input, generate | |
245 | (cons (concat "\\<" input-keywords "\\>" | |
89c19c1e | 246 | "[ \t\f]+\\(\\sw+\\)") |
6b279740 | 247 | '((1 font-lock-keyword-face) |
883212ce | 248 | (2 font-lock-constant-face))) |
6b279740 | 249 | ;; embedded Metafont/MetaPost code in comments |
a1506d29 | 250 | (cons "|\\([^|]+\\)|" |
883212ce | 251 | '(1 font-lock-constant-face t)) |
6b279740 RS |
252 | )) |
253 | "Default expressions to highlight in Metafont or MetaPost mode.") | |
254 | ||
255 | ||
256 | (defun font-lock-match-meta-declaration-item-and-skip-to-next (limit) | |
257 | ;; Match and move over Metafont/MetaPost declaration item after point. | |
258 | ;; | |
259 | ;; The expected syntax of an item is either "word" or "symbol", | |
260 | ;; possibly ending with optional whitespace. Everything following | |
261 | ;; the item (but belonging to it) is expected to by skipable by | |
262 | ;; `forward-sexp'. The list of items is expected to be separated | |
263 | ;; by commas and terminated by semicolons or equals signs. | |
264 | ;; | |
89c19c1e | 265 | (if (looking-at "[ \t\f]*\\(\\sw+\\|\\s_+\\)") |
6b279740 RS |
266 | (save-match-data |
267 | (condition-case nil | |
268 | (save-restriction | |
269 | ;; Restrict to end of line, currently guaranteed to be LIMIT. | |
270 | (narrow-to-region (point-min) limit) | |
271 | (goto-char (match-end 1)) | |
272 | ;; Move over any item value, etc., to the next item. | |
89c19c1e | 273 | (while (not (looking-at "[ \t\f]*\\(\\(,\\)\\|;\\|=\\|$\\)")) |
6b279740 RS |
274 | (goto-char (or (scan-sexps (point) 1) (point-max)))) |
275 | (goto-char (match-end 2))) | |
276 | (error t))))) | |
277 | ||
278 | ||
279 | \f | |
280 | ;;; Completion. | |
281 | ||
282 | ;; The data used to prepare the following lists of primitives and | |
283 | ;; standard macros available in Metafont or MetaPost was extracted | |
284 | ;; from the original sources like this: | |
285 | ;; | |
286 | ;; grep '^primitive' texk-7.0/web2c/{mf,mp}.web |\ | |
287 | ;; sed 's/primitive(\("[a-zA-Z]*"\).*/\1/' > {mf,mp}_prim.list | |
288 | ;; | |
a1506d29 | 289 | ;; grep '\(let\|def\|vardef\|primarydef\|secondarydef\|tertiarydef\)' |
6b279740 RS |
290 | ;; texmf/meta{font,post}/plain.{mf,mp} > {mf,mp}_plain.list |
291 | ||
a1506d29 | 292 | (defconst meta-common-primitives-list |
6b279740 RS |
293 | '("ASCII" "addto" "also" "and" "angle" "atleast" "batchmode" |
294 | "begingroup" "boolean" "boundarychar" "char" "charcode" "chardp" | |
295 | "charexists" "charext" "charht" "charic" "charlist" "charwd" | |
296 | "contour" "controls" "cosd" "curl" "cycle" "day" "decimal" "def" | |
297 | "delimiters" "designsize" "directiontime" "doublepath" "dump" "else" | |
298 | "elseif" "end" "enddef" "endfor" "endgroup" "endinput" "errhelp" | |
299 | "errmessage" "errorstopmode" "everyjob" "exitif" "expandafter" | |
300 | "expr" "extensible" "false" "fi" "floor" "fontdimen" "fontmaking" | |
301 | "for" "forever" "forsuffixes" "headerbyte" "hex" "if" "inner" | |
302 | "input" "interim" "intersectiontimes" "jobname" "kern" "known" | |
303 | "length" "let" "ligtable" "makepath" "makepen" "message" "mexp" | |
304 | "mlog" "month" "newinternal" "nonstopmode" "normaldeviate" "not" | |
305 | "nullpen" "nullpicture" "numeric" "oct" "odd" "of" "or" "outer" | |
306 | "pair" "path" "pausing" "pen" "pencircle" "penoffset" "picture" | |
307 | "point" "postcontrol" "precontrol" "primary" "primarydef" "quote" | |
308 | "randomseed" "readstring" "reverse" "rotated" "save" "scaled" | |
309 | "scantokens" "scrollmode" "secondary" "secondarydef" "shifted" | |
310 | "shipout" "show" "showdependencies" "showstats" "showstopping" | |
311 | "showtoken" "showvariable" "sind" "skipto" "slanted" "special" | |
312 | "sqrt" "step" "str" "string" "subpath" "substring" "suffix" | |
313 | "tension" "tertiary" "tertiarydef" "text" "time" "to" | |
314 | "tracingcapsules" "tracingchoices" "tracingcommands" | |
315 | "tracingequations" "tracingmacros" "tracingonline" "tracingoutput" | |
316 | "tracingrestores" "tracingspecs" "tracingstats" "tracingtitles" | |
317 | "transform" "transformed" "true" "turningnumber" "uniformdeviate" | |
318 | "unknown" "until" "vardef" "warningcheck" "withpen" "xpart" | |
319 | "xscaled" "xxpart" "xypart" "year" "ypart" "yscaled" "yxpart" | |
a1506d29 | 320 | "yypart" "zscaled") |
6b279740 RS |
321 | "List of primitives common to Metafont and MetaPost.") |
322 | ||
a1506d29 | 323 | (defconst metafont-primitives-list |
6b279740 RS |
324 | '("at" "autorounding" "chardx" "chardy" "cull" "display" |
325 | "dropping" "fillin" "from" "granularity" "hppp" "inwindow" | |
326 | "keeping" "numspecial" "openwindow" "proofing" "smoothing" | |
327 | "totalweight" "tracingedges" "tracingpens" "turningcheck" "vppp" | |
328 | "withweight" "xoffset" "yoffset") | |
329 | "List of primitives only defined in Metafont.") | |
330 | ||
a1506d29 | 331 | (defconst metapost-primitives-list |
6b279740 RS |
332 | '("arclength" "arctime" "bluepart" "bounded" "btex" "clip" |
333 | "clipped" "color" "dashed" "dashpart" "etex" "filled" "fontpart" | |
334 | "fontsize" "greenpart" "infont" "linecap" "linejoin" "llcorner" | |
335 | "lrcorner" "miterlimit" "mpxbreak" "pathpart" "penpart" | |
336 | "prologues" "readfrom" "redpart" "setbounds" "stroked" "textpart" | |
337 | "textual" "tracinglostchars" "truecorners" "ulcorner" "urcorner" | |
338 | "verbatimtex" "withcolor" "within" "write") | |
339 | "List of primitives only defined in MetaPost.") | |
340 | ||
a1506d29 | 341 | (defconst meta-common-plain-macros-list |
6b279740 RS |
342 | '( "abs" "bot" "bye" "byte" "ceiling" "clear_pen_memory" |
343 | "clearit" "clearpen" "clearxy" "counterclockwise" "cutdraw" "decr" | |
344 | "dir" "direction" "directionpoint" "div" "dotprod" "downto" "draw" | |
345 | "drawdot" "erase" "exitunless" "fill" "filldraw" "flex" "gobble" | |
346 | "hide" "incr" "interact" "interpath" "intersectionpoint" "inverse" | |
347 | "label" "labels" "lft" "loggingall" "magstep" "makelabel" "max" | |
348 | "min" "mod" "numtok" "penlabels" "penpos" "penstroke" "pickup" | |
349 | "range" "reflectedabout" "relax" "rotatedabout" "rotatedaround" | |
350 | "round" "rt" "savepen" "shipit" "softjoin" "solve" "stop" | |
351 | "superellipse" "takepower" "tensepath" "thru" "top" "tracingall" | |
352 | "tracingnone" "undraw" "undrawdot" "unfill" "unfilldraw" | |
353 | "unitvector" "upto" "whatever") | |
354 | "List of macros common to plain Metafont and MetaPost.") | |
355 | ||
a1506d29 | 356 | (defconst metafont-plain-macros-list |
6b279740 RS |
357 | '("beginchar" "change_width" "culldraw" "cullit" "cutoff" |
358 | "define_blacker_pixels" "define_corrected_pixels" | |
359 | "define_good_x_pixels" "define_good_y_pixels" | |
360 | "define_horizontal_corrected_pixels" "define_pixels" | |
361 | "define_whole_blacker_pixels" "define_whole_pixels" | |
362 | "define_whole_vertical_blacker_pixels" | |
363 | "define_whole_vertical_pixels" "endchar" "fix_units" | |
364 | "font_coding_scheme" "font_extra_space" "font_identifier" | |
365 | "font_normal_shrink" "font_normal_space" "font_normal_stretch" | |
366 | "font_quad" "font_size" "font_slant" "font_x_height" "gfcorners" | |
367 | "good.bot" "good.lft" "good.rt" "good.top" "good.x" "good.y" | |
368 | "grayfont" "hround" "imagerules" "italcorr" "labelfont" | |
369 | "lowres_fix" "makebox" "makegrid" "maketicks" "mode_lowres" | |
370 | "mode_proof" "mode_setup" "mode_smoke" "nodisplays" "notransforms" | |
371 | "openit" "penrazor" "pensquare" "proofoffset" "proofrule" | |
372 | "proofrulethickness" "screenchars" "screenrule" "screenstrokes" | |
a1506d29 | 373 | "showit" "slantfont" "smode" "titlefont" "vround") |
6b279740 RS |
374 | "List of macros only defined in plain Metafont.") |
375 | ||
a1506d29 | 376 | (defconst metapost-plain-macros-list |
6b279740 RS |
377 | '("arrowhead" "bbox" "beginfig" "buildcycle" "center" "cutafter" |
378 | "cutbefore" "dashpattern" "dotlabel" "dotlabels" "drawarrow" | |
379 | "drawdblarrow" "drawoptions" "endfig" "image" "label" "off" "on" | |
a1506d29 | 380 | "thelabel") |
6b279740 RS |
381 | "List of macros only defined in plain MetaPost.") |
382 | ||
a1506d29 JB |
383 | (defconst metapost-graph-macros-list |
384 | '("augment" "auto.x" "auto.y" "autogrid" "begingraph" "endgraph" | |
385 | "format" "frame" "gdata" "gdotlabel" "gdraw" "gdrawarrow" | |
386 | "gdrawdblarrow" "gfill" "glabel" "grid" "itick" "otick" "plot" | |
6b279740 RS |
387 | "setcoords" "setrange") |
388 | "List of macros only defined in MetaPost \"graph\" package.") | |
a1506d29 JB |
389 | |
390 | (defconst metapost-boxes-macros-list | |
6b279740 RS |
391 | '("boxit" "boxjoin" "bpath" "circleit" "drawboxed" "drawboxes" |
392 | "drawunboxed" "fixpos" "fixsize" "pic" "rboxit") | |
393 | "List of macros only defined in MetaPost \"boxes\" package.") | |
394 | ||
395 | ||
396 | (defvar metafont-symbol-list | |
397 | (append meta-common-primitives-list | |
398 | metafont-primitives-list | |
399 | meta-common-plain-macros-list | |
400 | metafont-plain-macros-list) | |
401 | "List of known symbols to complete in Metafont mode.") | |
402 | ||
403 | (defvar metapost-symbol-list | |
404 | (append meta-common-primitives-list | |
405 | metapost-primitives-list | |
406 | meta-common-plain-macros-list | |
407 | metapost-plain-macros-list | |
408 | metapost-graph-macros-list | |
409 | metapost-boxes-macros-list) | |
410 | "List of known symbols to complete in MetaPost mode.") | |
411 | ||
412 | ||
413 | (defvar meta-symbol-list nil | |
414 | "List of known symbols to complete in Metafont or MetaPost mode.") | |
415 | ||
a1506d29 | 416 | (defvar meta-symbol-changed nil |
6b279740 RS |
417 | "Flag indicating whether `meta-symbol-list' has been initialized.") |
418 | ||
419 | (defvar meta-complete-list nil | |
420 | ; (list (list "\\<\\(\\sw+\\)" 1 'meta-symbol-list) | |
421 | ; (list "" 'ispell-complete-word)) | |
422 | "List of ways to perform completion in Metafont or MetaPost mode. | |
423 | ||
424 | Each entry is a list with the following elements: | |
425 | 1. Regexp matching the preceding text. | |
426 | 2. A number indicating the subgroup in the regexp containing the text. | |
427 | 3. A function returning an alist of possible completions. | |
428 | 4. Text to append after a succesful completion (if any). | |
429 | ||
430 | Or alternatively: | |
431 | 1. Regexp matching the preceding text. | |
432 | 2. Function to do the actual completion.") | |
433 | ||
434 | ||
435 | (defun meta-add-symbols (&rest entries) | |
436 | "Add entries to list of known symbols in Metafont or MetaPost mode." | |
437 | (if meta-symbol-changed | |
438 | (setq meta-symbol-list (cons entries meta-symbol-list)) | |
439 | (setq meta-symbol-changed t) | |
440 | (setq meta-symbol-list (cons entries meta-symbol-list)))) | |
441 | ||
442 | (defun meta-symbol-list () | |
443 | "Return value of list of known symbols in Metafont or MetaPost mode. | |
444 | If the list was changed, sort the list and remove duplicates first." | |
445 | (if (not meta-symbol-changed) | |
446 | () | |
447 | (setq meta-symbol-changed nil) | |
448 | (message "Preparing completion list...") | |
449 | ;; sort list of symbols | |
450 | (setq meta-symbol-list | |
451 | (sort (mapcar 'meta-listify (apply 'append meta-symbol-list)) | |
452 | 'meta-car-string-lessp)) | |
453 | ;; remove duplicates | |
454 | (let ((entry meta-symbol-list)) | |
455 | (while (and entry (cdr entry)) | |
456 | (let ((this (car entry)) | |
457 | (next (car (cdr entry)))) | |
458 | (if (not (string-equal (car this) (car next))) | |
459 | (setq entry (cdr entry)) | |
460 | (if (> (length next) (length this)) | |
461 | (setcdr this (cdr next))) | |
462 | (setcdr entry (cdr (cdr entry))))))) | |
463 | (message "Preparing completion list... done")) | |
464 | meta-symbol-list) | |
465 | ||
466 | (defun meta-listify (a) | |
467 | ;; utility function used in `meta-add-symbols' | |
468 | (if (listp a) a (list a))) | |
469 | ||
470 | (defun meta-car-string-lessp (a b) | |
471 | ;; utility function used in `meta-add-symbols' | |
472 | (string-lessp (car a) (car b))) | |
473 | ||
474 | ||
475 | (defun meta-complete-symbol () | |
476 | "Perform completion on Metafont or MetaPost symbol preceding point." | |
175069ef | 477 | ;; FIXME: Use completion-at-point-functions. |
6b279740 RS |
478 | (interactive "*") |
479 | (let ((list meta-complete-list) | |
480 | entry) | |
481 | (while list | |
482 | (setq entry (car list) | |
483 | list (cdr list)) | |
484 | (if (meta-looking-at-backward (car entry) 200) | |
485 | (setq list nil))) | |
486 | (if (numberp (nth 1 entry)) | |
487 | (let* ((sub (nth 1 entry)) | |
488 | (close (nth 3 entry)) | |
489 | (begin (match-beginning sub)) | |
490 | (end (match-end sub)) | |
d6b8d4e7 SM |
491 | (list (funcall (nth 2 entry)))) |
492 | (completion-in-region | |
493 | begin end | |
494 | (if (zerop (length close)) list | |
495 | (apply-partially 'completion-table-with-terminator | |
496 | close list)))) | |
6b279740 RS |
497 | (funcall (nth 1 entry))))) |
498 | ||
499 | ||
500 | (defun meta-looking-at-backward (regexp &optional limit) | |
501 | ;; utility function used in `meta-complete-symbol' | |
502 | (let ((pos (point))) | |
503 | (save-excursion | |
a1506d29 | 504 | (and (re-search-backward |
6b279740 RS |
505 | regexp (if limit (max (point-min) (- (point) limit))) t) |
506 | (eq (match-end 0) pos))))) | |
507 | ||
508 | (defun meta-match-buffer (n) | |
509 | ;; utility function used in `meta-complete-symbol' | |
510 | (if (match-beginning n) | |
511 | (let ((str (buffer-substring (match-beginning n) (match-end n)))) | |
512 | (set-text-properties 0 (length str) nil str) | |
513 | (copy-sequence str)) | |
514 | "")) | |
515 | ||
516 | ||
517 | \f | |
518 | ;;; Indentation. | |
519 | ||
28d16ed3 | 520 | (defcustom meta-indent-level 2 |
3406534c | 521 | "Indentation of begin-end blocks in Metafont or MetaPost mode." |
28d16ed3 AS |
522 | :type 'integer |
523 | :group 'meta-font) | |
6b279740 RS |
524 | |
525 | ||
28d16ed3 | 526 | (defcustom meta-left-comment-regexp "%%+" |
3406534c | 527 | "Regexp matching comments that should be placed on the left margin." |
28d16ed3 AS |
528 | :type 'regexp |
529 | :group 'meta-font) | |
6b279740 | 530 | |
28d16ed3 | 531 | (defcustom meta-right-comment-regexp nil |
3406534c | 532 | "Regexp matching comments that should be placed to the right margin." |
28d16ed3 AS |
533 | :type '(choice regexp |
534 | (const :tag "None" nil)) | |
535 | :group 'meta-font) | |
6b279740 | 536 | |
28d16ed3 | 537 | (defcustom meta-ignore-comment-regexp "%[^%]" |
3406534c | 538 | "Regexp matching comments that whose indentation should not be touched." |
28d16ed3 AS |
539 | :type 'regexp |
540 | :group 'meta-font) | |
6b279740 RS |
541 | |
542 | ||
28d16ed3 | 543 | (defcustom meta-begin-environment-regexp |
6b279740 RS |
544 | (concat "\\(begin\\(char\\|fig\\|gr\\(aph\\|oup\\)\\|logochar\\)\\|" |
545 | "def\\|for\\(\\|ever\\|suffixes\\)\\|if\\|mode_def\\|" | |
546 | "primarydef\\|secondarydef\\|tertiarydef\\|vardef\\)") | |
3406534c | 547 | "Regexp matching the beginning of environments to be indented." |
28d16ed3 AS |
548 | :type 'regexp |
549 | :group 'meta-font) | |
6b279740 | 550 | |
28d16ed3 | 551 | (defcustom meta-end-environment-regexp |
6b279740 RS |
552 | (concat "\\(end\\(char\\|def\\|f\\(ig\\|or\\)\\|gr\\(aph\\|oup\\)\\)" |
553 | "\\|fi\\)") | |
3406534c | 554 | "Regexp matching the end of environments to be indented." |
28d16ed3 AS |
555 | :type 'regexp |
556 | :group 'meta-font) | |
6b279740 | 557 | |
28d16ed3 | 558 | (defcustom meta-within-environment-regexp |
6b279740 RS |
559 | ; (concat "\\(e\\(lse\\(\\|if\\)\\|xit\\(if\\|unless\\)\\)\\)") |
560 | (concat "\\(else\\(\\|if\\)\\)") | |
3406534c | 561 | "Regexp matching keywords within environments not to be indented." |
28d16ed3 AS |
562 | :type 'regexp |
563 | :group 'meta-font) | |
6b279740 RS |
564 | |
565 | ||
566 | (defun meta-comment-indent () | |
567 | "Return the indentation for a comment in Metafont or MetaPost mode." | |
568 | (if (and meta-left-comment-regexp | |
569 | (looking-at meta-left-comment-regexp)) | |
570 | (current-column) | |
89c19c1e | 571 | (skip-chars-backward "\t\f ") |
a1506d29 | 572 | (max (if (bolp) 0 (1+ (current-column))) |
6b279740 RS |
573 | comment-column))) |
574 | ||
575 | (defun meta-indent-line () | |
576 | "Indent the line containing point as Metafont or MetaPost source." | |
577 | (interactive) | |
578 | (let ((indent (meta-indent-calculate))) | |
e814121e GM |
579 | (if (/= (current-indentation) indent) |
580 | (save-excursion | |
581 | (delete-region (line-beginning-position) | |
582 | (progn (back-to-indentation) (point))) | |
583 | (indent-to indent))) | |
6b279740 RS |
584 | (if (< (current-column) indent) |
585 | (back-to-indentation)))) | |
586 | ||
587 | (defun meta-indent-calculate () | |
588 | "Return the indentation of current line of Metafont or MetaPost source." | |
8a4c5051 MC |
589 | ;; Indentation within strings is not considered as Meta* don't allow multi |
590 | ;; line strings. | |
6b279740 RS |
591 | (save-excursion |
592 | (back-to-indentation) | |
a1506d29 | 593 | (cond |
8a4c5051 | 594 | ;; Comments to the left margin. |
6b279740 RS |
595 | ((and meta-left-comment-regexp |
596 | (looking-at meta-left-comment-regexp)) | |
597 | 0) | |
8a4c5051 | 598 | ;; Comments to the right margin. |
6b279740 RS |
599 | ((and meta-right-comment-regexp |
600 | (looking-at meta-right-comment-regexp)) | |
601 | comment-column) | |
602 | ;; Comments best left alone. | |
a1506d29 | 603 | ((and meta-ignore-comment-regexp |
6b279740 RS |
604 | (looking-at meta-ignore-comment-regexp)) |
605 | (current-indentation)) | |
8a4c5051 MC |
606 | ;; Beginning of buffer. |
607 | ((eq (point-at-bol) (point-min)) | |
608 | 0) | |
6b279740 | 609 | ;; Backindent at end of environments. |
8a4c5051 | 610 | ((meta-indent-looking-at-code |
6b279740 | 611 | (concat "\\<" meta-end-environment-regexp "\\>")) |
8a4c5051 | 612 | (- (meta-indent-current-indentation) meta-indent-level)) |
6b279740 | 613 | ;; Backindent at keywords within environments. |
8a4c5051 | 614 | ((meta-indent-looking-at-code |
6b279740 | 615 | (concat "\\<" meta-within-environment-regexp "\\>")) |
8a4c5051 MC |
616 | (- (meta-indent-current-indentation) meta-indent-level)) |
617 | (t (meta-indent-current-indentation))))) | |
618 | ||
619 | (defun meta-indent-in-string-p () | |
620 | "Tell if the point is in a string." | |
621 | (or (nth 3 (syntax-ppss)) | |
622 | (eq (get-text-property (point) 'face) font-lock-string-face))) | |
623 | ||
624 | (defun meta-indent-looking-at-code (regexp) | |
625 | "Same as `looking-at' but checks that the point is not in a string." | |
626 | (unless (meta-indent-in-string-p) | |
627 | (looking-at regexp))) | |
628 | ||
629 | (defun meta-indent-previous-line () | |
630 | "Go to the previous line of code, skipping comments." | |
89c19c1e | 631 | (skip-chars-backward "\n\t\f ") |
8a4c5051 MC |
632 | (move-to-column (current-indentation)) |
633 | ;; Ignore comments. | |
634 | (while (and (looking-at comment-start) (not (bobp))) | |
89c19c1e | 635 | (skip-chars-backward "\n\t\f ") |
ebd3fa6b MC |
636 | (when (not (bobp)) |
637 | (move-to-column (current-indentation))))) | |
8a4c5051 MC |
638 | |
639 | (defun meta-indent-unfinished-line () | |
640 | "Tell if the current line of code ends with an unfinished expression." | |
641 | (save-excursion | |
642 | (end-of-line) | |
643 | ;; Skip backward the comments. | |
ebd3fa6b MC |
644 | (let ((point-not-in-string (point))) |
645 | (while (search-backward comment-start (point-at-bol) t) | |
646 | (unless (meta-indent-in-string-p) | |
647 | (setq point-not-in-string (point)))) | |
648 | (goto-char point-not-in-string)) | |
8a4c5051 MC |
649 | ;; Search for the end of the previous expression. |
650 | (if (search-backward ";" (point-at-bol) t) | |
651 | (progn (while (and (meta-indent-in-string-p) | |
652 | (search-backward ";" (point-at-bol) t))) | |
653 | (if (= (char-after) ?\;) | |
654 | (forward-char) | |
655 | (beginning-of-line))) | |
656 | (beginning-of-line)) | |
657 | ;; See if the last statement of the line is environment-related, | |
658 | ;; or exists at all. | |
659 | (if (meta-indent-looking-at-code | |
89c19c1e | 660 | (concat "[ \t\f]*\\($\\|" (regexp-quote comment-start) |
8a4c5051 MC |
661 | "\\|\\<" meta-end-environment-regexp "\\>" |
662 | "\\|\\<" meta-begin-environment-regexp "\\>" | |
663 | "\\|\\<" meta-within-environment-regexp "\\>\\)")) | |
664 | nil | |
665 | t))) | |
666 | ||
667 | (defun meta-indent-current-indentation () | |
668 | "Return the indentation wanted for the current line of code." | |
669 | (+ (meta-indent-current-nesting) | |
670 | (if (save-excursion | |
671 | (back-to-indentation) | |
672 | (and (not (looking-at (concat "\\<" meta-end-environment-regexp "\\>" | |
673 | "\\|\\<" meta-within-environment-regexp "\\>"))) | |
674 | (progn (meta-indent-previous-line) | |
675 | (meta-indent-unfinished-line)))) | |
676 | meta-indent-level | |
677 | 0))) | |
678 | ||
679 | (defun meta-indent-current-nesting () | |
680 | "Return the indentation according to the nearest environment keyword." | |
681 | (save-excursion | |
682 | (save-restriction | |
683 | (widen) | |
684 | (back-to-indentation) | |
685 | (let ((to-add 0)) | |
686 | ;; If we found some environment marker backward... | |
687 | (if (catch 'found | |
688 | (while (re-search-backward | |
689 | (concat "(\\|)\\|\\<" meta-end-environment-regexp "\\>" | |
690 | "\\|\\<" meta-begin-environment-regexp "\\>" | |
691 | "\\|\\<" meta-within-environment-regexp "\\>") | |
692 | nil t) | |
693 | ;; If we aren't in a string or in a comment, we've found something. | |
694 | (unless (or (meta-indent-in-string-p) | |
695 | (nth 4 (syntax-ppss))) | |
696 | (cond ((= (char-after) ?\() | |
697 | (setq to-add (+ to-add meta-indent-level))) | |
698 | ((= (char-after) ?\)) | |
699 | (setq to-add (- to-add meta-indent-level))) | |
700 | (t (throw 'found t)))))) | |
701 | (progn | |
702 | ;; ... then use it to compute the current indentation. | |
703 | (back-to-indentation) | |
704 | (+ to-add (current-indentation) (meta-indent-level-count) | |
705 | ;; Compensate for backindent of end and within keywords. | |
706 | (if (meta-indent-looking-at-code | |
707 | (concat "\\<" meta-end-environment-regexp "\\>\\|" | |
708 | "\\<" meta-within-environment-regexp "\\>")) | |
709 | meta-indent-level | |
710 | ;; Compensate for unfinished line. | |
711 | (if (save-excursion | |
712 | (meta-indent-previous-line) | |
713 | (meta-indent-unfinished-line)) | |
714 | (- meta-indent-level) | |
715 | 0)))) | |
716 | 0))))) | |
6b279740 RS |
717 | |
718 | (defun meta-indent-level-count () | |
719 | "Count indentation change for begin-end commands in the current line." | |
720 | (save-excursion | |
721 | (save-restriction | |
722 | (let ((count 0)) | |
a1506d29 | 723 | (narrow-to-region |
6b279740 RS |
724 | (point) (save-excursion |
725 | (re-search-forward "[^\\\\\"]%\\|\n\\|\\'" nil t) | |
726 | (backward-char) (point))) | |
727 | (while (re-search-forward "\\<\\sw+\\>\\|(\\|)" nil t) | |
728 | (save-excursion | |
729 | (goto-char (match-beginning 0)) | |
730 | (cond | |
731 | ;; Count number of begin-end keywords within line. | |
8a4c5051 | 732 | ((meta-indent-looking-at-code |
6b279740 RS |
733 | (concat "\\<" meta-begin-environment-regexp "\\>")) |
734 | (setq count (+ count meta-indent-level))) | |
8a4c5051 | 735 | ((meta-indent-looking-at-code |
6b279740 | 736 | (concat "\\<" meta-end-environment-regexp "\\>")) |
8a4c5051 | 737 | (setq count (- count meta-indent-level)))))) |
6b279740 RS |
738 | count)))) |
739 | ||
740 | ||
741 | \f | |
6b279740 RS |
742 | ;;; Editing commands. |
743 | ||
28d16ed3 | 744 | (defcustom meta-begin-defun-regexp |
6b279740 RS |
745 | (concat "\\(begin\\(char\\|fig\\|logochar\\)\\|def\\|mode_def\\|" |
746 | "primarydef\\|secondarydef\\|tertiarydef\\|vardef\\)") | |
3406534c | 747 | "Regexp matching beginning of defuns in Metafont or MetaPost mode." |
28d16ed3 AS |
748 | :type 'regexp |
749 | :group 'meta-font) | |
6b279740 | 750 | |
28d16ed3 | 751 | (defcustom meta-end-defun-regexp |
6b279740 | 752 | (concat "\\(end\\(char\\|def\\|fig\\)\\)") |
3406534c | 753 | "Regexp matching the end of defuns in Metafont or MetaPost mode." |
28d16ed3 AS |
754 | :type 'regexp |
755 | :group 'meta-font) | |
6b279740 RS |
756 | |
757 | ||
758 | (defun meta-beginning-of-defun (&optional arg) | |
759 | "Move backward to beginnning of a defun in Metafont or MetaPost code. | |
a1506d29 | 760 | With numeric argument, do it that many times. |
6b279740 RS |
761 | Negative arg -N means move forward to Nth following beginning of defun. |
762 | Returns t unless search stops due to beginning or end of buffer." | |
763 | (interactive "p") | |
764 | (if (or (null arg) (= 0 arg)) (setq arg 1)) | |
765 | (and arg (< arg 0) (not (eobp)) (forward-char 1)) | |
a1506d29 | 766 | (and (re-search-backward |
6b279740 RS |
767 | (concat "\\<" meta-begin-defun-regexp "\\>") nil t arg) |
768 | (progn (goto-char (match-beginning 0)) | |
769 | (skip-chars-backward "%") | |
89c19c1e | 770 | (skip-chars-backward " \t\f") t))) |
a1506d29 | 771 | |
6b279740 RS |
772 | (defun meta-end-of-defun (&optional arg) |
773 | "Move forward to end of a defun in Metafont or MetaPost code. | |
a1506d29 | 774 | With numeric argument, do it that many times. |
6b279740 RS |
775 | Negative argument -N means move back to Nth preceding end of defun. |
776 | Returns t unless search stops due to beginning or end of buffer." | |
777 | (interactive "p") | |
778 | (if (or (null arg) (= 0 arg)) (setq arg 1)) | |
779 | (and (< arg 0) (not (bobp)) (forward-line -1)) | |
780 | (and (re-search-forward | |
781 | (concat "\\<" meta-end-defun-regexp "\\>") nil t arg) | |
782 | (progn (goto-char (match-end 0)) | |
783 | (skip-chars-forward ";") | |
89c19c1e | 784 | (skip-chars-forward " \t\f") |
6b279740 RS |
785 | (if (looking-at "\n") (forward-line 1)) t))) |
786 | ||
787 | ||
788 | (defun meta-comment-region (beg end &optional arg) | |
789 | "Comment out active region as Metafont or MetaPost source." | |
790 | (interactive "r") | |
791 | (comment-region beg end arg)) | |
792 | ||
793 | (defun meta-uncomment-region (beg end) | |
794 | "Uncomment active region as Metafont or MetaPost source." | |
795 | (interactive "r") | |
796 | (comment-region beg end -1)) | |
797 | ||
798 | (defun meta-comment-defun (&optional arg) | |
799 | "Comment out current environment as Metafont or MetaPost source. | |
800 | With prefix argument, uncomment the environment. | |
801 | The environment used is the one that contains point or follows point." | |
802 | (interactive "P") | |
803 | (save-excursion | |
804 | (let* ((end (if (meta-end-of-defun) (point) (point-max))) | |
805 | (beg (if (meta-beginning-of-defun) (point) (point-min)))) | |
806 | (comment-region beg end arg)))) | |
807 | ||
808 | (defun meta-uncomment-defun () | |
809 | "Uncomment current environment as Metafont or MetaPost source." | |
810 | (interactive) | |
811 | (meta-comment-defun -1)) | |
812 | ||
813 | ||
814 | (defun meta-indent-region (beg end) | |
815 | "Indent the active region as Metafont or MetaPost source." | |
816 | (interactive "r") | |
817 | (indent-region beg end nil)) | |
818 | ||
819 | (defun meta-indent-buffer () | |
820 | "Indent the whole buffer contents as Metafont or MetaPost source." | |
821 | (interactive) | |
822 | (save-excursion | |
823 | (indent-region (point-min) (point-max) nil))) | |
824 | ||
825 | (defun meta-indent-defun () | |
826 | "Indent the current environment as Metafont or MetaPost source. | |
827 | The environment indented is the one that contains point or follows point." | |
828 | (interactive) | |
829 | (save-excursion | |
830 | (let* ((end (if (meta-end-of-defun) (point) (point-max))) | |
831 | (beg (if (meta-beginning-of-defun) (point) (point-min)))) | |
832 | (indent-region beg end nil)))) | |
833 | ||
834 | ||
835 | (defun meta-mark-defun () | |
836 | "Put mark at end of the environment, point at the beginning. | |
837 | The environment marked is the one that contains point or follows point." | |
838 | (interactive) | |
839 | (push-mark (point)) | |
840 | (meta-end-of-defun) | |
841 | (push-mark (point) nil t) | |
842 | (meta-beginning-of-defun)) | |
843 | ||
844 | ||
845 | \f | |
846 | ;;; Syntax table, keymap and menu. | |
847 | ||
175069ef | 848 | (define-abbrev-table 'meta-mode-abbrev-table () |
6b279740 | 849 | "Abbrev table used in Metafont or MetaPost mode.") |
6b279740 | 850 | |
175069ef | 851 | (defvar meta-common-mode-syntax-table |
ff319790 SM |
852 | (let ((st (make-syntax-table))) |
853 | ;; underscores are word constituents | |
854 | (modify-syntax-entry ?_ "w" st) | |
855 | ;; miscellaneous non-word symbols | |
856 | (modify-syntax-entry ?# "_" st) | |
857 | (modify-syntax-entry ?@ "_" st) | |
858 | (modify-syntax-entry ?$ "_" st) | |
859 | (modify-syntax-entry ?? "_" st) | |
860 | (modify-syntax-entry ?! "_" st) | |
861 | ;; binary operators | |
862 | (modify-syntax-entry ?& "." st) | |
863 | (modify-syntax-entry ?+ "." st) | |
864 | (modify-syntax-entry ?- "." st) | |
865 | (modify-syntax-entry ?/ "." st) | |
866 | (modify-syntax-entry ?* "." st) | |
867 | (modify-syntax-entry ?. "." st) | |
868 | (modify-syntax-entry ?: "." st) | |
869 | (modify-syntax-entry ?= "." st) | |
870 | (modify-syntax-entry ?< "." st) | |
871 | (modify-syntax-entry ?> "." st) | |
872 | (modify-syntax-entry ?| "." st) | |
873 | ;; opening and closing delimiters | |
874 | (modify-syntax-entry ?\( "()" st) | |
875 | (modify-syntax-entry ?\) ")(" st) | |
876 | (modify-syntax-entry ?\[ "(]" st) | |
877 | (modify-syntax-entry ?\] ")[" st) | |
878 | (modify-syntax-entry ?\{ "(}" st) | |
879 | (modify-syntax-entry ?\} "){" st) | |
880 | ;; comment character | |
881 | (modify-syntax-entry ?% "<" st) | |
882 | (modify-syntax-entry ?\n ">" st) | |
883 | ;; escape character, needed for embedded TeX code | |
884 | (modify-syntax-entry ?\\ "\\" st) | |
885 | st) | |
6b279740 | 886 | "Syntax table used in Metafont or MetaPost mode.") |
6b279740 | 887 | |
175069ef | 888 | (defvar meta-common-mode-map |
ff319790 | 889 | (let ((map (make-sparse-keymap))) |
ff319790 SM |
890 | ;; Comment Paragraphs: |
891 | ;; (define-key map "\M-a" 'backward-sentence) | |
892 | ;; (define-key map "\M-e" 'forward-sentence) | |
893 | ;; (define-key map "\M-h" 'mark-paragraph) | |
894 | ;; (define-key map "\M-q" 'fill-paragraph) | |
895 | ;; Navigation: | |
896 | (define-key map "\M-\C-a" 'meta-beginning-of-defun) | |
897 | (define-key map "\M-\C-e" 'meta-end-of-defun) | |
898 | (define-key map "\M-\C-h" 'meta-mark-defun) | |
899 | ;; Indentation: | |
900 | (define-key map "\M-\C-q" 'meta-indent-defun) | |
901 | (define-key map "\C-c\C-qe" 'meta-indent-defun) | |
902 | (define-key map "\C-c\C-qr" 'meta-indent-region) | |
903 | (define-key map "\C-c\C-qb" 'meta-indent-buffer) | |
904 | ;; Commenting Out: | |
905 | (define-key map "\C-c%" 'meta-comment-defun) | |
906 | ;; (define-key map "\C-uC-c%" 'meta-uncomment-defun) | |
907 | (define-key map "\C-c;" 'meta-comment-region) | |
908 | (define-key map "\C-c:" 'meta-uncomment-region) | |
909 | ;; Symbol Completion: | |
910 | (define-key map "\M-\t" 'meta-complete-symbol) | |
911 | ;; Shell Commands: | |
912 | ;; (define-key map "\C-c\C-c" 'meta-command-file) | |
913 | ;; (define-key map "\C-c\C-k" 'meta-kill-job) | |
914 | ;; (define-key map "\C-c\C-l" 'meta-recenter-output) | |
915 | map) | |
6b279740 | 916 | "Keymap used in Metafont or MetaPost mode.") |
175069ef | 917 | (define-obsolete-variable-alias 'meta-mode-map 'meta-common-mode-map "24.1") |
6b279740 | 918 | |
a1506d29 | 919 | (easy-menu-define |
175069ef | 920 | meta-mode-menu meta-common-mode-map |
6b279740 RS |
921 | "Menu used in Metafont or MetaPost mode." |
922 | (list "Meta" | |
923 | ["Forward Environment" meta-beginning-of-defun t] | |
924 | ["Backward Environment" meta-end-of-defun t] | |
925 | "--" | |
926 | ["Indent Line" meta-indent-line t] | |
927 | ["Indent Environment" meta-indent-defun t] | |
a1506d29 | 928 | ["Indent Region" meta-indent-region |
6b279740 RS |
929 | :active (meta-mark-active)] |
930 | ["Indent Buffer" meta-indent-buffer t] | |
931 | "--" | |
932 | ["Comment Out Environment" meta-comment-defun t] | |
933 | ["Uncomment Environment" meta-uncomment-defun t] | |
a1506d29 | 934 | ["Comment Out Region" meta-comment-region |
6b279740 | 935 | :active (meta-mark-active)] |
a1506d29 | 936 | ["Uncomment Region" meta-uncomment-region |
6b279740 RS |
937 | :active (meta-mark-active)] |
938 | "--" | |
939 | ["Complete Symbol" meta-complete-symbol t] | |
940 | ; "--" | |
941 | ; ["Command on Buffer" meta-command-file t] | |
942 | ; ["Kill Job" meta-kill-job t] | |
943 | ; ["Recenter Output Buffer" meta-recenter-output-buffer t] | |
944 | )) | |
945 | ||
946 | ;; Compatibility: XEmacs doesn't have the `mark-active' variable. | |
947 | (defun meta-mark-active () | |
948 | "Return whether the mark and region are currently active in this buffer." | |
3a51abf1 | 949 | (if (boundp 'mark-active) mark-active (mark))) |
6b279740 RS |
950 | |
951 | ||
952 | \f | |
953 | ;;; Hook variables. | |
954 | ||
28d16ed3 | 955 | (defcustom meta-mode-load-hook nil |
3406534c | 956 | "Hook evaluated when first loading Metafont or MetaPost mode." |
28d16ed3 AS |
957 | :type 'hook |
958 | :group 'meta-font) | |
959 | ||
960 | (defcustom meta-common-mode-hook nil | |
3406534c | 961 | "Hook evaluated by both `metafont-mode' and `metapost-mode'." |
28d16ed3 AS |
962 | :type 'hook |
963 | :group 'meta-font) | |
964 | ||
965 | (defcustom metafont-mode-hook nil | |
3406534c | 966 | "Hook evaluated by `metafont-mode' after `meta-common-mode-hook'." |
28d16ed3 AS |
967 | :type 'hook |
968 | :group 'meta-font) | |
969 | (defcustom metapost-mode-hook nil | |
3406534c | 970 | "Hook evaluated by `metapost-mode' after `meta-common-mode-hook'." |
28d16ed3 AS |
971 | :type 'hook |
972 | :group 'meta-font) | |
6b279740 RS |
973 | |
974 | ||
975 | \f | |
976 | ;;; Initialization. | |
977 | ||
175069ef | 978 | (define-derived-mode meta-common-mode prog-mode "-Meta-common-" |
6b279740 | 979 | "Common initialization for Metafont or MetaPost mode." |
175069ef SM |
980 | :abbrev-table meta-mode-abbrev-table |
981 | (set (make-local-variable 'paragraph-start) | |
982 | (concat page-delimiter "\\|$")) | |
983 | (set (make-local-variable 'paragraph-separate) | |
984 | (concat page-delimiter "\\|$")) | |
985 | ||
986 | (set (make-local-variable 'paragraph-ignore-fill-prefix) t) | |
987 | ||
988 | (set (make-local-variable 'comment-start-skip) "%+[ \t\f]*") | |
989 | (set (make-local-variable 'comment-start) "%") | |
990 | (set (make-local-variable 'comment-end) "") | |
991 | (set (make-local-variable 'comment-multi-line) nil) | |
6b279740 | 992 | |
89c19c1e MC |
993 | ;; We use `back-to-indentation' but \f is no indentation sign. |
994 | (modify-syntax-entry ?\f "_ ") | |
995 | ||
175069ef | 996 | (set (make-local-variable 'parse-sexp-ignore-comments) t) |
6b279740 | 997 | |
175069ef SM |
998 | (set (make-local-variable 'comment-indent-function) #'meta-comment-indent) |
999 | (set (make-local-variable 'indent-line-function) #'meta-indent-line) | |
6b279740 RS |
1000 | ;; No need to define a mode-specific 'indent-region-function. |
1001 | ;; Simply use the generic 'indent-region and 'comment-region. | |
1002 | ||
1003 | ;; Set defaults for font-lock mode. | |
175069ef SM |
1004 | (set (make-local-variable 'font-lock-defaults) |
1005 | '(meta-font-lock-keywords | |
1006 | nil nil ((?_ . "w")) nil | |
1007 | (font-lock-comment-start-regexp . "%"))) | |
6b279740 RS |
1008 | |
1009 | ;; Activate syntax table, keymap and menu. | |
175069ef | 1010 | (easy-menu-add meta-mode-menu)) |
6b279740 RS |
1011 | |
1012 | ||
1eadb66c | 1013 | ;;;###autoload |
175069ef SM |
1014 | (define-derived-mode metafont-mode meta-common-mode "Metafont" |
1015 | "Major mode for editing Metafont sources." | |
6b279740 | 1016 | ;; Set defaults for completion function. |
175069ef SM |
1017 | (set (make-local-variable 'meta-symbol-list) nil) |
1018 | (set (make-local-variable 'meta-symbol-changed) nil) | |
6b279740 | 1019 | (apply 'meta-add-symbols metafont-symbol-list) |
175069ef | 1020 | (set (make-local-variable 'meta-complete-list) |
6b279740 | 1021 | (list (list "\\<\\(\\sw+\\)" 1 'meta-symbol-list) |
175069ef | 1022 | (list "" 'ispell-complete-word)))) |
6b279740 | 1023 | |
1eadb66c | 1024 | ;;;###autoload |
175069ef SM |
1025 | (define-derived-mode metapost-mode meta-common-mode "MetaPost" |
1026 | "Major mode for editing MetaPost sources." | |
6b279740 | 1027 | ;; Set defaults for completion function. |
175069ef SM |
1028 | (set (make-local-variable 'meta-symbol-list) nil) |
1029 | (set (make-local-variable 'meta-symbol-changed) nil) | |
6b279740 | 1030 | (apply 'meta-add-symbols metapost-symbol-list) |
175069ef | 1031 | (set (make-local-variable 'meta-complete-list) |
6b279740 | 1032 | (list (list "\\<\\(\\sw+\\)" 1 'meta-symbol-list) |
175069ef | 1033 | (list "" 'ispell-complete-word)))) |
6b279740 RS |
1034 | |
1035 | ||
1036 | ;;; Just in case ... | |
1037 | ||
1038 | (provide 'meta-mode) | |
1039 | (run-hooks 'meta-mode-load-hook) | |
1040 | ||
1041 | ;;; meta-mode.el ends here |