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bcd70d97 | 1 | ;;; meta-mode.el --- major mode for editing Metafont or MetaPost sources -*- lexical-binding:t -*- |
6b279740 | 2 | |
73b0cd50 | 3 | ;; Copyright (C) 1997, 2001-2011 Free Software Foundation, Inc. |
6b279740 RS |
4 | |
5 | ;; Author: Ulrik Vieth <vieth@thphy.uni-duesseldorf.de> | |
6 | ;; Version: 1.0 | |
7 | ;; Keywords: Metafont, MetaPost, tex, languages | |
8 | ||
1eadb66c | 9 | ;; This file is part of GNU Emacs. |
6b279740 | 10 | |
b1fc2b50 | 11 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
6b279740 | 12 | ;; it under the terms of the GNU General Public License as published by |
b1fc2b50 GM |
13 | ;; the Free Software Foundation, either version 3 of the License, or |
14 | ;; (at your option) any later version. | |
6b279740 | 15 | |
1eadb66c | 16 | ;; GNU Emacs is distributed in the hope that it will be useful, |
6b279740 RS |
17 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | ;; GNU General Public License for more details. | |
20 | ||
21 | ;; You should have received a copy of the GNU General Public License | |
b1fc2b50 | 22 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
6b279740 RS |
23 | |
24 | ;;; Commentary: | |
25 | ||
26 | ;; Description: | |
27 | ;; | |
28 | ;; This Emacs Lisp package provides a major mode for editing Metafont | |
29 | ;; or MetaPost sources. It includes all the necessary code to set up | |
30 | ;; a major mode including an approriate syntax table, keymap, and a | |
31 | ;; mode-specific pull-down menu. It also provides a sophisticated set | |
32 | ;; of font-lock patterns, a fancy indentation function adapted from | |
818226ac | 33 | ;; AUCTeX's latex.el, and some basic mode-specific editing functions |
6b279740 RS |
34 | ;; such as functions to move to the beginning or end of the enclosing |
35 | ;; environment, or to mark, re-indent, or comment-out environments. | |
36 | ;; On the other hand, it doesn't yet provide any functionality for | |
37 | ;; running Metafont or MetaPost in a shell buffer form within Emacs, | |
38 | ;; but such functionality might be added later, either as part of this | |
39 | ;; package or as a separate Emacs Lisp package. | |
40 | ||
41 | ;; Installation: | |
a1506d29 | 42 | ;; |
6b279740 RS |
43 | ;; An interface to running Metafont or MetaPost as a shell process |
44 | ;; from within Emacs is currently under development as a separate | |
45 | ;; Emacs Lisp package (meta-buf.el). In order to have that package | |
46 | ;; loaded automatically when first entering Metafont or MetaPost mode, | |
47 | ;; you might use the load-hook provided in this package by adding | |
48 | ;; these lines to your startup file: | |
a1506d29 JB |
49 | ;; |
50 | ;; (add-hook 'meta-mode-load-hook | |
8a4c5051 | 51 | ;; (lambda () (require 'meta-buf))) |
6b279740 RS |
52 | ;; |
53 | ;; The add-on package loaded this way may in turn make use of the | |
54 | ;; mode-hooks provided in this package to activate additional features | |
55 | ;; when entering Metafont or MetaPost mode. | |
56 | ||
57 | ;; Font Lock Support: | |
58 | ;; | |
59 | ;; If you are using global-font-lock-mode (introduced in Emacs 19.31), | |
60 | ;; fontification in Metafont and/or MetaPost mode will be activated | |
61 | ;; automatically. To speed up fontification for the rather complex | |
62 | ;; patterns used in these modes, it may be a good idea to activate | |
63 | ;; lazy-lock as a font-lock-support-mode (introduced in Emacs 19.32) | |
64 | ;; by adding these lines to your startup file: | |
65 | ;; | |
66 | ;; (global-font-lock-mode t) | |
67 | ;; (setq font-lock-support-mode 'lazy-lock-mode) | |
68 | ;; | |
69 | ;; If you are using an older version of Emacs, which doesn't provide | |
70 | ;; global-font-lock-mode or font-lock-support-mode, you can also | |
71 | ;; activate fontification in Metafont and/or MetaPost mode by adding | |
72 | ;; the following lines to your startup file: | |
a1506d29 | 73 | ;; |
6b279740 RS |
74 | ;; (add-hook 'meta-common-mode-hook 'turn-on-font-lock) |
75 | ;; (add-hook 'meta-common-mode-hook 'turn-on-lazy-lock) | |
76 | ||
77 | ;; Customization: | |
78 | ;; | |
79 | ;; Following the usual Emacs Lisp coding conventions, the major modes | |
80 | ;; defined in this package provide several hook variables to allow for | |
81 | ;; local customization when entering the modes. In particular, there | |
82 | ;; is a `meta-common-mode-hook' which applies to both modes as well as | |
83 | ;; `metafont-mode-hook' and `metapost-mode-hook' which apply to the | |
84 | ;; individual modes. In addition, there are several variables and | |
85 | ;; regexps controlling e.g. the behavior of the indentation function, | |
86 | ;; which may be customized via `edit-options'. Please refer to the | |
87 | ;; docstrings in the code below for details. | |
88 | ||
89 | ;; Availability: | |
90 | ;; | |
91 | ;; This package is currently available via my "TeX Software" WWW page: | |
92 | ;; | |
93 | ;; http://www.thphy.uni-duesseldorf.de/~vieth/subjects/tex/software.html | |
94 | ;; | |
95 | ;; As of this version 1.0, this package will be uploaded to CTAN | |
96 | ;; archives, where it shall find a permanent home, presumably in | |
97 | ;; tex-archive/support/emacs-modes. It will also be submitted for | |
98 | ;; integration into the GNU Emacs distribution at that time. | |
99 | ;; | |
100 | ;; History: | |
101 | ;; | |
102 | ;; v 0.0 -- 1997/02/01 UV Started writing meta-mode.el. | |
103 | ;; v 0.1 -- 1997/02/02 UV Added preliminary set of font-lock patterns. | |
104 | ;; v 0.2 -- 1997/02/03 UV Improved and debugged font-lock patterns. | |
105 | ;; Added indent-line-function for TAB. | |
106 | ;; v 0.3 -- 1997/02/17 UV Improved font-lock patterns and syntax table. | |
107 | ;; Improved and debbuged indentation function. | |
108 | ;; v 0.4 -- 1997/02/18 UV Added functions to indent regions for M-C-q, | |
109 | ;; also added a preliminary mode-specific menu. | |
a1506d29 | 110 | ;; v 0.5 -- 1997/02/19 UV Added functions to skip to next or previous |
6b279740 RS |
111 | ;; defun and to re-indent or comment-out defuns. |
112 | ;; v 0.6 -- 1997/02/20 UV More debugging, testing and clean-up. | |
113 | ;; v 0.7 -- 1997/02/22 UV Use easymenu to define mode-specific menu. | |
114 | ;; v 0.8 -- 1997/02/24 UV Added completion function for M-TAB. | |
115 | ;; v 0.9 -- 1997/03/08 UV Added fill-paragraph function for comments. | |
116 | ;; Also fixed a few remaining font-lock problems. | |
117 | ;; Added meta-mode-load-hook to load meta-buf.el. | |
118 | ;; v 1.0 -- 1997/04/07 UV Cleanup for official public release. | |
119 | ;; | |
120 | ;; Historical Footnote: | |
121 | ;; | |
122 | ;; This package was begun on February 1, 1997, exactly 20 years after | |
123 | ;; the genesis of TeX took place according to Don Knuth's own account | |
ff319790 | 124 | ;; (cf. ``The Errors of TeX'', reprinted in ``Literate Programming'', |
6b279740 RS |
125 | ;; Chapter 10, p. 249). What better date could there be to choose? |
126 | ;; | |
127 | ||
128 | \f | |
129 | ;;; Code: | |
130 | ||
131 | (require 'easymenu) | |
132 | ||
28d16ed3 AS |
133 | (defgroup meta-font nil |
134 | "Major mode for editing Metafont or MetaPost sources." | |
8ec3bce0 | 135 | :link '(custom-group-link :tag "Font Lock Faces group" font-lock-faces) |
28d16ed3 AS |
136 | :group 'languages) |
137 | ||
6b279740 RS |
138 | ;;; Fontification. |
139 | ||
140 | (defvar meta-font-lock-keywords | |
141 | (let ((input-keywords | |
142 | "\\(input\\|generate\\)") | |
143 | (begin-keywords | |
144 | (concat "\\(begin\\(char\\|fig\\|graph\\|logochar\\)\\|" | |
145 | "\\cmchar\\|dcchar\\|ecchar\\)")) | |
146 | (end-keywords | |
147 | "\\(end\\(char\\|fig\\|graph\\)\\)") | |
148 | (macro-keywords-1 | |
149 | "\\(def\\|let\\|mode_def\\|vardef\\)") | |
150 | (macro-keywords-2 | |
151 | "\\(primarydef\\|secondarydef\\|tertiarydef\\)") | |
152 | ;(make-regexp | |
153 | ; '("expr" "suffix" "text" "primary" "secondary" "tertiary") t) | |
154 | (args-keywords | |
155 | (concat "\\(expr\\|primary\\|s\\(econdary\\|uffix\\)\\|" | |
156 | "te\\(rtiary\\|xt\\)\\)")) | |
157 | ;(make-regexp | |
158 | ; '("boolean" "color" "numeric" "pair" "path" "pen" "picture" | |
159 | ; "string" "transform" "newinternal") t) | |
160 | (type-keywords | |
161 | (concat "\\(boolean\\|color\\|n\\(ewinternal\\|umeric\\)\\|" | |
162 | "p\\(a\\(ir\\|th\\)\\|en\\|icture\\)\\|string\\|" | |
163 | "transform\\)")) | |
164 | ;(make-regexp | |
165 | ; '("for" "forever" "forsuffixes" "endfor" | |
166 | ; "step" "until" "upto" "downto" "thru" "within" | |
167 | ; "iff" "if" "elseif" "else" "fi" "exitif" "exitunless" | |
168 | ; "let" "def" "vardef" "enddef" "mode_def" | |
169 | ; "true" "false" "known" "unknown" "and" "or" "not" | |
170 | ; "save" "interim" "inner" "outer" "relax" | |
171 | ; "begingroup" "endgroup" "expandafter" "scantokens" | |
172 | ; "generate" "input" "endinput" "end" "bye" | |
173 | ; "message" "errmessage" "errhelp" "special" "numspecial" | |
174 | ; "readstring" "readfrom" "write") t) | |
175 | (syntactic-keywords | |
176 | (concat "\\(and\\|b\\(egingroup\\|ye\\)\\|" | |
177 | "d\\(ef\\|ownto\\)\\|e\\(lse\\(\\|if\\)" | |
178 | "\\|nd\\(\\|def\\|for\\|group\\|input\\)" | |
179 | "\\|rr\\(help\\|message\\)" | |
180 | "\\|x\\(it\\(if\\|unless\\)\\|pandafter\\)\\)\\|" | |
181 | "f\\(alse\\|i\\|or\\(\\|ever\\|suffixes\\)\\)\\|" | |
182 | "generate\\|i\\(ff?\\|n\\(ner\\|put\\|terim\\)\\)\\|" | |
183 | "known\\|let\\|m\\(essage\\|ode_def\\)\\|" | |
184 | "n\\(ot\\|umspecial\\)\\|o\\(r\\|uter\\)\\|" | |
185 | "re\\(ad\\(from\\|string\\)\\|lax\\)\\|" | |
186 | "s\\(ave\\|cantokens\\|pecial\\|tep\\)\\|" | |
187 | "t\\(hru\\|rue\\)\\|" | |
188 | "u\\(n\\(known\\|til\\)\\|pto\\)\\|" | |
189 | "vardef\\|w\\(ithin\\|rite\\)\\)")) | |
190 | ) | |
191 | (list | |
192 | ;; embedded TeX code in btex ... etex | |
193 | (cons (concat "\\(btex\\|verbatimtex\\)" | |
89c19c1e | 194 | "[ \t\f]+\\(.*\\)[ \t\f]+" |
6b279740 RS |
195 | "\\(etex\\)") |
196 | '((1 font-lock-keyword-face) | |
197 | (2 font-lock-string-face) | |
198 | (3 font-lock-keyword-face))) | |
199 | ;; unary macro definitions: def, vardef, let | |
200 | (cons (concat "\\<" macro-keywords-1 "\\>" | |
89c19c1e | 201 | "[ \t\f]+\\(\\sw+\\|\\s_+\\|\\s.+\\)") |
6b279740 RS |
202 | '((1 font-lock-keyword-face) |
203 | (2 font-lock-function-name-face))) | |
204 | ;; binary macro defintions: <leveldef> x operator y | |
205 | (cons (concat "\\<" macro-keywords-2 "\\>" | |
89c19c1e MC |
206 | "[ \t\f]+\\(\\sw+\\)" |
207 | "[ \t\f]*\\(\\sw+\\|\\s.+\\)" | |
208 | "[ \t\f]*\\(\\sw+\\)") | |
6b279740 RS |
209 | '((1 font-lock-keyword-face) |
210 | (2 font-lock-variable-name-face nil t) | |
211 | (3 font-lock-function-name-face nil t) | |
212 | (4 font-lock-variable-name-face nil t))) | |
213 | ;; variable declarations: numeric, pair, color, ... | |
214 | (cons (concat "\\<" type-keywords "\\>" | |
89c19c1e | 215 | "\\([ \t\f]+\\(\\sw+\\)\\)*") |
6b279740 RS |
216 | '((1 font-lock-type-face) |
217 | (font-lock-match-meta-declaration-item-and-skip-to-next | |
218 | (goto-char (match-end 1)) nil | |
219 | (1 font-lock-variable-name-face nil t)))) | |
220 | ;; argument declarations: expr, suffix, text, ... | |
221 | (cons (concat "\\<" args-keywords "\\>" | |
89c19c1e | 222 | "\\([ \t\f]+\\(\\sw+\\|\\s_+\\)\\)*") |
6b279740 RS |
223 | '((1 font-lock-type-face) |
224 | (font-lock-match-meta-declaration-item-and-skip-to-next | |
225 | (goto-char (match-end 1)) nil | |
226 | (1 font-lock-variable-name-face nil t)))) | |
227 | ;; special case of arguments: expr x of y | |
89c19c1e MC |
228 | (cons (concat "\\(expr\\)[ \t\f]+\\(\\sw+\\)" |
229 | "[ \t\f]+\\(of\\)[ \t\f]+\\(\\sw+\\)") | |
6b279740 RS |
230 | '((1 font-lock-type-face) |
231 | (2 font-lock-variable-name-face) | |
232 | (3 font-lock-keyword-face nil t) | |
233 | (4 font-lock-variable-name-face nil t))) | |
234 | ;; syntactic keywords | |
235 | (cons (concat "\\<" syntactic-keywords "\\>") | |
236 | 'font-lock-keyword-face) | |
237 | ;; beginchar, beginfig | |
238 | (cons (concat "\\<" begin-keywords "\\>") | |
239 | 'font-lock-keyword-face) | |
240 | ;; endchar, endfig | |
241 | (cons (concat "\\<" end-keywords "\\>") | |
242 | 'font-lock-keyword-face) | |
243 | ;; input, generate | |
244 | (cons (concat "\\<" input-keywords "\\>" | |
89c19c1e | 245 | "[ \t\f]+\\(\\sw+\\)") |
6b279740 | 246 | '((1 font-lock-keyword-face) |
883212ce | 247 | (2 font-lock-constant-face))) |
6b279740 | 248 | ;; embedded Metafont/MetaPost code in comments |
a1506d29 | 249 | (cons "|\\([^|]+\\)|" |
883212ce | 250 | '(1 font-lock-constant-face t)) |
6b279740 RS |
251 | )) |
252 | "Default expressions to highlight in Metafont or MetaPost mode.") | |
253 | ||
254 | ||
255 | (defun font-lock-match-meta-declaration-item-and-skip-to-next (limit) | |
256 | ;; Match and move over Metafont/MetaPost declaration item after point. | |
257 | ;; | |
258 | ;; The expected syntax of an item is either "word" or "symbol", | |
259 | ;; possibly ending with optional whitespace. Everything following | |
260 | ;; the item (but belonging to it) is expected to by skipable by | |
261 | ;; `forward-sexp'. The list of items is expected to be separated | |
262 | ;; by commas and terminated by semicolons or equals signs. | |
263 | ;; | |
89c19c1e | 264 | (if (looking-at "[ \t\f]*\\(\\sw+\\|\\s_+\\)") |
6b279740 RS |
265 | (save-match-data |
266 | (condition-case nil | |
267 | (save-restriction | |
268 | ;; Restrict to end of line, currently guaranteed to be LIMIT. | |
269 | (narrow-to-region (point-min) limit) | |
270 | (goto-char (match-end 1)) | |
271 | ;; Move over any item value, etc., to the next item. | |
89c19c1e | 272 | (while (not (looking-at "[ \t\f]*\\(\\(,\\)\\|;\\|=\\|$\\)")) |
6b279740 RS |
273 | (goto-char (or (scan-sexps (point) 1) (point-max)))) |
274 | (goto-char (match-end 2))) | |
275 | (error t))))) | |
276 | ||
277 | ||
278 | \f | |
279 | ;;; Completion. | |
280 | ||
281 | ;; The data used to prepare the following lists of primitives and | |
282 | ;; standard macros available in Metafont or MetaPost was extracted | |
283 | ;; from the original sources like this: | |
284 | ;; | |
285 | ;; grep '^primitive' texk-7.0/web2c/{mf,mp}.web |\ | |
286 | ;; sed 's/primitive(\("[a-zA-Z]*"\).*/\1/' > {mf,mp}_prim.list | |
287 | ;; | |
a1506d29 | 288 | ;; grep '\(let\|def\|vardef\|primarydef\|secondarydef\|tertiarydef\)' |
6b279740 RS |
289 | ;; texmf/meta{font,post}/plain.{mf,mp} > {mf,mp}_plain.list |
290 | ||
a1506d29 | 291 | (defconst meta-common-primitives-list |
6b279740 RS |
292 | '("ASCII" "addto" "also" "and" "angle" "atleast" "batchmode" |
293 | "begingroup" "boolean" "boundarychar" "char" "charcode" "chardp" | |
294 | "charexists" "charext" "charht" "charic" "charlist" "charwd" | |
295 | "contour" "controls" "cosd" "curl" "cycle" "day" "decimal" "def" | |
296 | "delimiters" "designsize" "directiontime" "doublepath" "dump" "else" | |
297 | "elseif" "end" "enddef" "endfor" "endgroup" "endinput" "errhelp" | |
298 | "errmessage" "errorstopmode" "everyjob" "exitif" "expandafter" | |
299 | "expr" "extensible" "false" "fi" "floor" "fontdimen" "fontmaking" | |
300 | "for" "forever" "forsuffixes" "headerbyte" "hex" "if" "inner" | |
301 | "input" "interim" "intersectiontimes" "jobname" "kern" "known" | |
302 | "length" "let" "ligtable" "makepath" "makepen" "message" "mexp" | |
303 | "mlog" "month" "newinternal" "nonstopmode" "normaldeviate" "not" | |
304 | "nullpen" "nullpicture" "numeric" "oct" "odd" "of" "or" "outer" | |
305 | "pair" "path" "pausing" "pen" "pencircle" "penoffset" "picture" | |
306 | "point" "postcontrol" "precontrol" "primary" "primarydef" "quote" | |
307 | "randomseed" "readstring" "reverse" "rotated" "save" "scaled" | |
308 | "scantokens" "scrollmode" "secondary" "secondarydef" "shifted" | |
309 | "shipout" "show" "showdependencies" "showstats" "showstopping" | |
310 | "showtoken" "showvariable" "sind" "skipto" "slanted" "special" | |
311 | "sqrt" "step" "str" "string" "subpath" "substring" "suffix" | |
312 | "tension" "tertiary" "tertiarydef" "text" "time" "to" | |
313 | "tracingcapsules" "tracingchoices" "tracingcommands" | |
314 | "tracingequations" "tracingmacros" "tracingonline" "tracingoutput" | |
315 | "tracingrestores" "tracingspecs" "tracingstats" "tracingtitles" | |
316 | "transform" "transformed" "true" "turningnumber" "uniformdeviate" | |
317 | "unknown" "until" "vardef" "warningcheck" "withpen" "xpart" | |
318 | "xscaled" "xxpart" "xypart" "year" "ypart" "yscaled" "yxpart" | |
a1506d29 | 319 | "yypart" "zscaled") |
6b279740 RS |
320 | "List of primitives common to Metafont and MetaPost.") |
321 | ||
a1506d29 | 322 | (defconst metafont-primitives-list |
6b279740 RS |
323 | '("at" "autorounding" "chardx" "chardy" "cull" "display" |
324 | "dropping" "fillin" "from" "granularity" "hppp" "inwindow" | |
325 | "keeping" "numspecial" "openwindow" "proofing" "smoothing" | |
326 | "totalweight" "tracingedges" "tracingpens" "turningcheck" "vppp" | |
327 | "withweight" "xoffset" "yoffset") | |
328 | "List of primitives only defined in Metafont.") | |
329 | ||
a1506d29 | 330 | (defconst metapost-primitives-list |
6b279740 RS |
331 | '("arclength" "arctime" "bluepart" "bounded" "btex" "clip" |
332 | "clipped" "color" "dashed" "dashpart" "etex" "filled" "fontpart" | |
333 | "fontsize" "greenpart" "infont" "linecap" "linejoin" "llcorner" | |
334 | "lrcorner" "miterlimit" "mpxbreak" "pathpart" "penpart" | |
335 | "prologues" "readfrom" "redpart" "setbounds" "stroked" "textpart" | |
336 | "textual" "tracinglostchars" "truecorners" "ulcorner" "urcorner" | |
337 | "verbatimtex" "withcolor" "within" "write") | |
338 | "List of primitives only defined in MetaPost.") | |
339 | ||
a1506d29 | 340 | (defconst meta-common-plain-macros-list |
6b279740 RS |
341 | '( "abs" "bot" "bye" "byte" "ceiling" "clear_pen_memory" |
342 | "clearit" "clearpen" "clearxy" "counterclockwise" "cutdraw" "decr" | |
343 | "dir" "direction" "directionpoint" "div" "dotprod" "downto" "draw" | |
344 | "drawdot" "erase" "exitunless" "fill" "filldraw" "flex" "gobble" | |
345 | "hide" "incr" "interact" "interpath" "intersectionpoint" "inverse" | |
346 | "label" "labels" "lft" "loggingall" "magstep" "makelabel" "max" | |
347 | "min" "mod" "numtok" "penlabels" "penpos" "penstroke" "pickup" | |
348 | "range" "reflectedabout" "relax" "rotatedabout" "rotatedaround" | |
349 | "round" "rt" "savepen" "shipit" "softjoin" "solve" "stop" | |
350 | "superellipse" "takepower" "tensepath" "thru" "top" "tracingall" | |
351 | "tracingnone" "undraw" "undrawdot" "unfill" "unfilldraw" | |
352 | "unitvector" "upto" "whatever") | |
353 | "List of macros common to plain Metafont and MetaPost.") | |
354 | ||
a1506d29 | 355 | (defconst metafont-plain-macros-list |
6b279740 RS |
356 | '("beginchar" "change_width" "culldraw" "cullit" "cutoff" |
357 | "define_blacker_pixels" "define_corrected_pixels" | |
358 | "define_good_x_pixels" "define_good_y_pixels" | |
359 | "define_horizontal_corrected_pixels" "define_pixels" | |
360 | "define_whole_blacker_pixels" "define_whole_pixels" | |
361 | "define_whole_vertical_blacker_pixels" | |
362 | "define_whole_vertical_pixels" "endchar" "fix_units" | |
363 | "font_coding_scheme" "font_extra_space" "font_identifier" | |
364 | "font_normal_shrink" "font_normal_space" "font_normal_stretch" | |
365 | "font_quad" "font_size" "font_slant" "font_x_height" "gfcorners" | |
366 | "good.bot" "good.lft" "good.rt" "good.top" "good.x" "good.y" | |
367 | "grayfont" "hround" "imagerules" "italcorr" "labelfont" | |
368 | "lowres_fix" "makebox" "makegrid" "maketicks" "mode_lowres" | |
369 | "mode_proof" "mode_setup" "mode_smoke" "nodisplays" "notransforms" | |
370 | "openit" "penrazor" "pensquare" "proofoffset" "proofrule" | |
371 | "proofrulethickness" "screenchars" "screenrule" "screenstrokes" | |
a1506d29 | 372 | "showit" "slantfont" "smode" "titlefont" "vround") |
6b279740 RS |
373 | "List of macros only defined in plain Metafont.") |
374 | ||
a1506d29 | 375 | (defconst metapost-plain-macros-list |
6b279740 RS |
376 | '("arrowhead" "bbox" "beginfig" "buildcycle" "center" "cutafter" |
377 | "cutbefore" "dashpattern" "dotlabel" "dotlabels" "drawarrow" | |
378 | "drawdblarrow" "drawoptions" "endfig" "image" "label" "off" "on" | |
a1506d29 | 379 | "thelabel") |
6b279740 RS |
380 | "List of macros only defined in plain MetaPost.") |
381 | ||
a1506d29 JB |
382 | (defconst metapost-graph-macros-list |
383 | '("augment" "auto.x" "auto.y" "autogrid" "begingraph" "endgraph" | |
384 | "format" "frame" "gdata" "gdotlabel" "gdraw" "gdrawarrow" | |
385 | "gdrawdblarrow" "gfill" "glabel" "grid" "itick" "otick" "plot" | |
6b279740 RS |
386 | "setcoords" "setrange") |
387 | "List of macros only defined in MetaPost \"graph\" package.") | |
a1506d29 JB |
388 | |
389 | (defconst metapost-boxes-macros-list | |
6b279740 RS |
390 | '("boxit" "boxjoin" "bpath" "circleit" "drawboxed" "drawboxes" |
391 | "drawunboxed" "fixpos" "fixsize" "pic" "rboxit") | |
392 | "List of macros only defined in MetaPost \"boxes\" package.") | |
393 | ||
394 | ||
395 | (defvar metafont-symbol-list | |
396 | (append meta-common-primitives-list | |
397 | metafont-primitives-list | |
398 | meta-common-plain-macros-list | |
399 | metafont-plain-macros-list) | |
400 | "List of known symbols to complete in Metafont mode.") | |
401 | ||
402 | (defvar metapost-symbol-list | |
403 | (append meta-common-primitives-list | |
404 | metapost-primitives-list | |
405 | meta-common-plain-macros-list | |
406 | metapost-plain-macros-list | |
407 | metapost-graph-macros-list | |
408 | metapost-boxes-macros-list) | |
409 | "List of known symbols to complete in MetaPost mode.") | |
410 | ||
411 | ||
412 | (defvar meta-symbol-list nil | |
413 | "List of known symbols to complete in Metafont or MetaPost mode.") | |
414 | ||
a1506d29 | 415 | (defvar meta-symbol-changed nil |
6b279740 RS |
416 | "Flag indicating whether `meta-symbol-list' has been initialized.") |
417 | ||
418 | (defvar meta-complete-list nil | |
419 | ; (list (list "\\<\\(\\sw+\\)" 1 'meta-symbol-list) | |
420 | ; (list "" 'ispell-complete-word)) | |
421 | "List of ways to perform completion in Metafont or MetaPost mode. | |
422 | ||
423 | Each entry is a list with the following elements: | |
424 | 1. Regexp matching the preceding text. | |
425 | 2. A number indicating the subgroup in the regexp containing the text. | |
426 | 3. A function returning an alist of possible completions. | |
427 | 4. Text to append after a succesful completion (if any). | |
428 | ||
429 | Or alternatively: | |
430 | 1. Regexp matching the preceding text. | |
431 | 2. Function to do the actual completion.") | |
432 | ||
433 | ||
434 | (defun meta-add-symbols (&rest entries) | |
435 | "Add entries to list of known symbols in Metafont or MetaPost mode." | |
436 | (if meta-symbol-changed | |
437 | (setq meta-symbol-list (cons entries meta-symbol-list)) | |
438 | (setq meta-symbol-changed t) | |
439 | (setq meta-symbol-list (cons entries meta-symbol-list)))) | |
440 | ||
441 | (defun meta-symbol-list () | |
442 | "Return value of list of known symbols in Metafont or MetaPost mode. | |
443 | If the list was changed, sort the list and remove duplicates first." | |
444 | (if (not meta-symbol-changed) | |
445 | () | |
446 | (setq meta-symbol-changed nil) | |
447 | (message "Preparing completion list...") | |
448 | ;; sort list of symbols | |
449 | (setq meta-symbol-list | |
450 | (sort (mapcar 'meta-listify (apply 'append meta-symbol-list)) | |
451 | 'meta-car-string-lessp)) | |
452 | ;; remove duplicates | |
453 | (let ((entry meta-symbol-list)) | |
454 | (while (and entry (cdr entry)) | |
455 | (let ((this (car entry)) | |
456 | (next (car (cdr entry)))) | |
457 | (if (not (string-equal (car this) (car next))) | |
458 | (setq entry (cdr entry)) | |
459 | (if (> (length next) (length this)) | |
460 | (setcdr this (cdr next))) | |
461 | (setcdr entry (cdr (cdr entry))))))) | |
462 | (message "Preparing completion list... done")) | |
463 | meta-symbol-list) | |
464 | ||
465 | (defun meta-listify (a) | |
466 | ;; utility function used in `meta-add-symbols' | |
467 | (if (listp a) a (list a))) | |
468 | ||
469 | (defun meta-car-string-lessp (a b) | |
470 | ;; utility function used in `meta-add-symbols' | |
471 | (string-lessp (car a) (car b))) | |
472 | ||
473 | ||
bcd70d97 | 474 | (defun meta-completions-at-point () |
6b279740 RS |
475 | (let ((list meta-complete-list) |
476 | entry) | |
477 | (while list | |
478 | (setq entry (car list) | |
479 | list (cdr list)) | |
bcd70d97 | 480 | (if (looking-back (car entry) (max (point-min) (- (point) 200))) |
6b279740 RS |
481 | (setq list nil))) |
482 | (if (numberp (nth 1 entry)) | |
483 | (let* ((sub (nth 1 entry)) | |
484 | (close (nth 3 entry)) | |
485 | (begin (match-beginning sub)) | |
486 | (end (match-end sub)) | |
d6b8d4e7 | 487 | (list (funcall (nth 2 entry)))) |
bcd70d97 SM |
488 | (list |
489 | begin end list | |
490 | :exit-function | |
491 | (unless (zerop (length close)) | |
492 | (lambda (_s finished) | |
493 | (when (memq finished '(sole finished)) | |
494 | (if (looking-at (regexp-quote close)) | |
495 | (goto-char (match-end 0)) | |
496 | (insert close))))))) | |
497 | (nth 1 entry)))) | |
498 | ||
499 | (define-obsolete-function-alias 'meta-complete-symbol | |
500 | 'completion-at-point "24.1") | |
6b279740 RS |
501 | \f |
502 | ;;; Indentation. | |
503 | ||
28d16ed3 | 504 | (defcustom meta-indent-level 2 |
3406534c | 505 | "Indentation of begin-end blocks in Metafont or MetaPost mode." |
28d16ed3 AS |
506 | :type 'integer |
507 | :group 'meta-font) | |
6b279740 RS |
508 | |
509 | ||
28d16ed3 | 510 | (defcustom meta-left-comment-regexp "%%+" |
3406534c | 511 | "Regexp matching comments that should be placed on the left margin." |
28d16ed3 AS |
512 | :type 'regexp |
513 | :group 'meta-font) | |
6b279740 | 514 | |
28d16ed3 | 515 | (defcustom meta-right-comment-regexp nil |
3406534c | 516 | "Regexp matching comments that should be placed to the right margin." |
28d16ed3 AS |
517 | :type '(choice regexp |
518 | (const :tag "None" nil)) | |
519 | :group 'meta-font) | |
6b279740 | 520 | |
28d16ed3 | 521 | (defcustom meta-ignore-comment-regexp "%[^%]" |
3406534c | 522 | "Regexp matching comments that whose indentation should not be touched." |
28d16ed3 AS |
523 | :type 'regexp |
524 | :group 'meta-font) | |
6b279740 RS |
525 | |
526 | ||
28d16ed3 | 527 | (defcustom meta-begin-environment-regexp |
6b279740 RS |
528 | (concat "\\(begin\\(char\\|fig\\|gr\\(aph\\|oup\\)\\|logochar\\)\\|" |
529 | "def\\|for\\(\\|ever\\|suffixes\\)\\|if\\|mode_def\\|" | |
530 | "primarydef\\|secondarydef\\|tertiarydef\\|vardef\\)") | |
3406534c | 531 | "Regexp matching the beginning of environments to be indented." |
28d16ed3 AS |
532 | :type 'regexp |
533 | :group 'meta-font) | |
6b279740 | 534 | |
28d16ed3 | 535 | (defcustom meta-end-environment-regexp |
6b279740 RS |
536 | (concat "\\(end\\(char\\|def\\|f\\(ig\\|or\\)\\|gr\\(aph\\|oup\\)\\)" |
537 | "\\|fi\\)") | |
3406534c | 538 | "Regexp matching the end of environments to be indented." |
28d16ed3 AS |
539 | :type 'regexp |
540 | :group 'meta-font) | |
6b279740 | 541 | |
28d16ed3 | 542 | (defcustom meta-within-environment-regexp |
6b279740 RS |
543 | ; (concat "\\(e\\(lse\\(\\|if\\)\\|xit\\(if\\|unless\\)\\)\\)") |
544 | (concat "\\(else\\(\\|if\\)\\)") | |
3406534c | 545 | "Regexp matching keywords within environments not to be indented." |
28d16ed3 AS |
546 | :type 'regexp |
547 | :group 'meta-font) | |
6b279740 RS |
548 | |
549 | ||
550 | (defun meta-comment-indent () | |
551 | "Return the indentation for a comment in Metafont or MetaPost mode." | |
552 | (if (and meta-left-comment-regexp | |
553 | (looking-at meta-left-comment-regexp)) | |
554 | (current-column) | |
89c19c1e | 555 | (skip-chars-backward "\t\f ") |
a1506d29 | 556 | (max (if (bolp) 0 (1+ (current-column))) |
6b279740 RS |
557 | comment-column))) |
558 | ||
559 | (defun meta-indent-line () | |
560 | "Indent the line containing point as Metafont or MetaPost source." | |
561 | (interactive) | |
562 | (let ((indent (meta-indent-calculate))) | |
e814121e GM |
563 | (if (/= (current-indentation) indent) |
564 | (save-excursion | |
565 | (delete-region (line-beginning-position) | |
566 | (progn (back-to-indentation) (point))) | |
567 | (indent-to indent))) | |
6b279740 RS |
568 | (if (< (current-column) indent) |
569 | (back-to-indentation)))) | |
570 | ||
571 | (defun meta-indent-calculate () | |
572 | "Return the indentation of current line of Metafont or MetaPost source." | |
8a4c5051 MC |
573 | ;; Indentation within strings is not considered as Meta* don't allow multi |
574 | ;; line strings. | |
6b279740 RS |
575 | (save-excursion |
576 | (back-to-indentation) | |
a1506d29 | 577 | (cond |
8a4c5051 | 578 | ;; Comments to the left margin. |
6b279740 RS |
579 | ((and meta-left-comment-regexp |
580 | (looking-at meta-left-comment-regexp)) | |
581 | 0) | |
8a4c5051 | 582 | ;; Comments to the right margin. |
6b279740 RS |
583 | ((and meta-right-comment-regexp |
584 | (looking-at meta-right-comment-regexp)) | |
585 | comment-column) | |
586 | ;; Comments best left alone. | |
a1506d29 | 587 | ((and meta-ignore-comment-regexp |
6b279740 RS |
588 | (looking-at meta-ignore-comment-regexp)) |
589 | (current-indentation)) | |
8a4c5051 MC |
590 | ;; Beginning of buffer. |
591 | ((eq (point-at-bol) (point-min)) | |
592 | 0) | |
6b279740 | 593 | ;; Backindent at end of environments. |
8a4c5051 | 594 | ((meta-indent-looking-at-code |
6b279740 | 595 | (concat "\\<" meta-end-environment-regexp "\\>")) |
8a4c5051 | 596 | (- (meta-indent-current-indentation) meta-indent-level)) |
6b279740 | 597 | ;; Backindent at keywords within environments. |
8a4c5051 | 598 | ((meta-indent-looking-at-code |
6b279740 | 599 | (concat "\\<" meta-within-environment-regexp "\\>")) |
8a4c5051 MC |
600 | (- (meta-indent-current-indentation) meta-indent-level)) |
601 | (t (meta-indent-current-indentation))))) | |
602 | ||
603 | (defun meta-indent-in-string-p () | |
604 | "Tell if the point is in a string." | |
605 | (or (nth 3 (syntax-ppss)) | |
606 | (eq (get-text-property (point) 'face) font-lock-string-face))) | |
607 | ||
608 | (defun meta-indent-looking-at-code (regexp) | |
609 | "Same as `looking-at' but checks that the point is not in a string." | |
610 | (unless (meta-indent-in-string-p) | |
611 | (looking-at regexp))) | |
612 | ||
613 | (defun meta-indent-previous-line () | |
614 | "Go to the previous line of code, skipping comments." | |
89c19c1e | 615 | (skip-chars-backward "\n\t\f ") |
8a4c5051 MC |
616 | (move-to-column (current-indentation)) |
617 | ;; Ignore comments. | |
618 | (while (and (looking-at comment-start) (not (bobp))) | |
89c19c1e | 619 | (skip-chars-backward "\n\t\f ") |
ebd3fa6b MC |
620 | (when (not (bobp)) |
621 | (move-to-column (current-indentation))))) | |
8a4c5051 MC |
622 | |
623 | (defun meta-indent-unfinished-line () | |
624 | "Tell if the current line of code ends with an unfinished expression." | |
625 | (save-excursion | |
626 | (end-of-line) | |
627 | ;; Skip backward the comments. | |
ebd3fa6b MC |
628 | (let ((point-not-in-string (point))) |
629 | (while (search-backward comment-start (point-at-bol) t) | |
630 | (unless (meta-indent-in-string-p) | |
631 | (setq point-not-in-string (point)))) | |
632 | (goto-char point-not-in-string)) | |
8a4c5051 MC |
633 | ;; Search for the end of the previous expression. |
634 | (if (search-backward ";" (point-at-bol) t) | |
635 | (progn (while (and (meta-indent-in-string-p) | |
636 | (search-backward ";" (point-at-bol) t))) | |
637 | (if (= (char-after) ?\;) | |
638 | (forward-char) | |
639 | (beginning-of-line))) | |
640 | (beginning-of-line)) | |
641 | ;; See if the last statement of the line is environment-related, | |
642 | ;; or exists at all. | |
643 | (if (meta-indent-looking-at-code | |
89c19c1e | 644 | (concat "[ \t\f]*\\($\\|" (regexp-quote comment-start) |
8a4c5051 MC |
645 | "\\|\\<" meta-end-environment-regexp "\\>" |
646 | "\\|\\<" meta-begin-environment-regexp "\\>" | |
647 | "\\|\\<" meta-within-environment-regexp "\\>\\)")) | |
648 | nil | |
649 | t))) | |
650 | ||
651 | (defun meta-indent-current-indentation () | |
652 | "Return the indentation wanted for the current line of code." | |
653 | (+ (meta-indent-current-nesting) | |
654 | (if (save-excursion | |
655 | (back-to-indentation) | |
656 | (and (not (looking-at (concat "\\<" meta-end-environment-regexp "\\>" | |
657 | "\\|\\<" meta-within-environment-regexp "\\>"))) | |
658 | (progn (meta-indent-previous-line) | |
659 | (meta-indent-unfinished-line)))) | |
660 | meta-indent-level | |
661 | 0))) | |
662 | ||
663 | (defun meta-indent-current-nesting () | |
664 | "Return the indentation according to the nearest environment keyword." | |
665 | (save-excursion | |
666 | (save-restriction | |
667 | (widen) | |
668 | (back-to-indentation) | |
669 | (let ((to-add 0)) | |
670 | ;; If we found some environment marker backward... | |
671 | (if (catch 'found | |
672 | (while (re-search-backward | |
673 | (concat "(\\|)\\|\\<" meta-end-environment-regexp "\\>" | |
674 | "\\|\\<" meta-begin-environment-regexp "\\>" | |
675 | "\\|\\<" meta-within-environment-regexp "\\>") | |
676 | nil t) | |
677 | ;; If we aren't in a string or in a comment, we've found something. | |
678 | (unless (or (meta-indent-in-string-p) | |
679 | (nth 4 (syntax-ppss))) | |
680 | (cond ((= (char-after) ?\() | |
681 | (setq to-add (+ to-add meta-indent-level))) | |
682 | ((= (char-after) ?\)) | |
683 | (setq to-add (- to-add meta-indent-level))) | |
684 | (t (throw 'found t)))))) | |
685 | (progn | |
686 | ;; ... then use it to compute the current indentation. | |
687 | (back-to-indentation) | |
688 | (+ to-add (current-indentation) (meta-indent-level-count) | |
689 | ;; Compensate for backindent of end and within keywords. | |
690 | (if (meta-indent-looking-at-code | |
691 | (concat "\\<" meta-end-environment-regexp "\\>\\|" | |
692 | "\\<" meta-within-environment-regexp "\\>")) | |
693 | meta-indent-level | |
694 | ;; Compensate for unfinished line. | |
695 | (if (save-excursion | |
696 | (meta-indent-previous-line) | |
697 | (meta-indent-unfinished-line)) | |
698 | (- meta-indent-level) | |
699 | 0)))) | |
700 | 0))))) | |
6b279740 RS |
701 | |
702 | (defun meta-indent-level-count () | |
703 | "Count indentation change for begin-end commands in the current line." | |
704 | (save-excursion | |
705 | (save-restriction | |
706 | (let ((count 0)) | |
a1506d29 | 707 | (narrow-to-region |
6b279740 RS |
708 | (point) (save-excursion |
709 | (re-search-forward "[^\\\\\"]%\\|\n\\|\\'" nil t) | |
710 | (backward-char) (point))) | |
711 | (while (re-search-forward "\\<\\sw+\\>\\|(\\|)" nil t) | |
712 | (save-excursion | |
713 | (goto-char (match-beginning 0)) | |
714 | (cond | |
715 | ;; Count number of begin-end keywords within line. | |
8a4c5051 | 716 | ((meta-indent-looking-at-code |
6b279740 RS |
717 | (concat "\\<" meta-begin-environment-regexp "\\>")) |
718 | (setq count (+ count meta-indent-level))) | |
8a4c5051 | 719 | ((meta-indent-looking-at-code |
6b279740 | 720 | (concat "\\<" meta-end-environment-regexp "\\>")) |
8a4c5051 | 721 | (setq count (- count meta-indent-level)))))) |
6b279740 RS |
722 | count)))) |
723 | ||
724 | ||
725 | \f | |
6b279740 RS |
726 | ;;; Editing commands. |
727 | ||
28d16ed3 | 728 | (defcustom meta-begin-defun-regexp |
6b279740 RS |
729 | (concat "\\(begin\\(char\\|fig\\|logochar\\)\\|def\\|mode_def\\|" |
730 | "primarydef\\|secondarydef\\|tertiarydef\\|vardef\\)") | |
3406534c | 731 | "Regexp matching beginning of defuns in Metafont or MetaPost mode." |
28d16ed3 AS |
732 | :type 'regexp |
733 | :group 'meta-font) | |
6b279740 | 734 | |
28d16ed3 | 735 | (defcustom meta-end-defun-regexp |
6b279740 | 736 | (concat "\\(end\\(char\\|def\\|fig\\)\\)") |
3406534c | 737 | "Regexp matching the end of defuns in Metafont or MetaPost mode." |
28d16ed3 AS |
738 | :type 'regexp |
739 | :group 'meta-font) | |
6b279740 RS |
740 | |
741 | ||
742 | (defun meta-beginning-of-defun (&optional arg) | |
743 | "Move backward to beginnning of a defun in Metafont or MetaPost code. | |
a1506d29 | 744 | With numeric argument, do it that many times. |
6b279740 RS |
745 | Negative arg -N means move forward to Nth following beginning of defun. |
746 | Returns t unless search stops due to beginning or end of buffer." | |
747 | (interactive "p") | |
748 | (if (or (null arg) (= 0 arg)) (setq arg 1)) | |
749 | (and arg (< arg 0) (not (eobp)) (forward-char 1)) | |
a1506d29 | 750 | (and (re-search-backward |
6b279740 RS |
751 | (concat "\\<" meta-begin-defun-regexp "\\>") nil t arg) |
752 | (progn (goto-char (match-beginning 0)) | |
753 | (skip-chars-backward "%") | |
89c19c1e | 754 | (skip-chars-backward " \t\f") t))) |
a1506d29 | 755 | |
6b279740 RS |
756 | (defun meta-end-of-defun (&optional arg) |
757 | "Move forward to end of a defun in Metafont or MetaPost code. | |
a1506d29 | 758 | With numeric argument, do it that many times. |
6b279740 RS |
759 | Negative argument -N means move back to Nth preceding end of defun. |
760 | Returns t unless search stops due to beginning or end of buffer." | |
761 | (interactive "p") | |
762 | (if (or (null arg) (= 0 arg)) (setq arg 1)) | |
763 | (and (< arg 0) (not (bobp)) (forward-line -1)) | |
764 | (and (re-search-forward | |
765 | (concat "\\<" meta-end-defun-regexp "\\>") nil t arg) | |
766 | (progn (goto-char (match-end 0)) | |
767 | (skip-chars-forward ";") | |
89c19c1e | 768 | (skip-chars-forward " \t\f") |
6b279740 RS |
769 | (if (looking-at "\n") (forward-line 1)) t))) |
770 | ||
771 | ||
772 | (defun meta-comment-region (beg end &optional arg) | |
773 | "Comment out active region as Metafont or MetaPost source." | |
774 | (interactive "r") | |
775 | (comment-region beg end arg)) | |
776 | ||
777 | (defun meta-uncomment-region (beg end) | |
778 | "Uncomment active region as Metafont or MetaPost source." | |
779 | (interactive "r") | |
780 | (comment-region beg end -1)) | |
781 | ||
782 | (defun meta-comment-defun (&optional arg) | |
783 | "Comment out current environment as Metafont or MetaPost source. | |
784 | With prefix argument, uncomment the environment. | |
785 | The environment used is the one that contains point or follows point." | |
786 | (interactive "P") | |
787 | (save-excursion | |
788 | (let* ((end (if (meta-end-of-defun) (point) (point-max))) | |
789 | (beg (if (meta-beginning-of-defun) (point) (point-min)))) | |
790 | (comment-region beg end arg)))) | |
791 | ||
792 | (defun meta-uncomment-defun () | |
793 | "Uncomment current environment as Metafont or MetaPost source." | |
794 | (interactive) | |
795 | (meta-comment-defun -1)) | |
796 | ||
797 | ||
798 | (defun meta-indent-region (beg end) | |
799 | "Indent the active region as Metafont or MetaPost source." | |
800 | (interactive "r") | |
801 | (indent-region beg end nil)) | |
802 | ||
803 | (defun meta-indent-buffer () | |
804 | "Indent the whole buffer contents as Metafont or MetaPost source." | |
805 | (interactive) | |
806 | (save-excursion | |
807 | (indent-region (point-min) (point-max) nil))) | |
808 | ||
809 | (defun meta-indent-defun () | |
810 | "Indent the current environment as Metafont or MetaPost source. | |
811 | The environment indented is the one that contains point or follows point." | |
812 | (interactive) | |
813 | (save-excursion | |
814 | (let* ((end (if (meta-end-of-defun) (point) (point-max))) | |
815 | (beg (if (meta-beginning-of-defun) (point) (point-min)))) | |
816 | (indent-region beg end nil)))) | |
817 | ||
818 | ||
819 | (defun meta-mark-defun () | |
820 | "Put mark at end of the environment, point at the beginning. | |
821 | The environment marked is the one that contains point or follows point." | |
822 | (interactive) | |
823 | (push-mark (point)) | |
824 | (meta-end-of-defun) | |
825 | (push-mark (point) nil t) | |
826 | (meta-beginning-of-defun)) | |
827 | ||
828 | ||
829 | \f | |
830 | ;;; Syntax table, keymap and menu. | |
831 | ||
175069ef | 832 | (define-abbrev-table 'meta-mode-abbrev-table () |
6b279740 | 833 | "Abbrev table used in Metafont or MetaPost mode.") |
6b279740 | 834 | |
175069ef | 835 | (defvar meta-common-mode-syntax-table |
ff319790 SM |
836 | (let ((st (make-syntax-table))) |
837 | ;; underscores are word constituents | |
838 | (modify-syntax-entry ?_ "w" st) | |
839 | ;; miscellaneous non-word symbols | |
840 | (modify-syntax-entry ?# "_" st) | |
841 | (modify-syntax-entry ?@ "_" st) | |
842 | (modify-syntax-entry ?$ "_" st) | |
843 | (modify-syntax-entry ?? "_" st) | |
844 | (modify-syntax-entry ?! "_" st) | |
845 | ;; binary operators | |
846 | (modify-syntax-entry ?& "." st) | |
847 | (modify-syntax-entry ?+ "." st) | |
848 | (modify-syntax-entry ?- "." st) | |
849 | (modify-syntax-entry ?/ "." st) | |
850 | (modify-syntax-entry ?* "." st) | |
851 | (modify-syntax-entry ?. "." st) | |
852 | (modify-syntax-entry ?: "." st) | |
853 | (modify-syntax-entry ?= "." st) | |
854 | (modify-syntax-entry ?< "." st) | |
855 | (modify-syntax-entry ?> "." st) | |
856 | (modify-syntax-entry ?| "." st) | |
857 | ;; opening and closing delimiters | |
858 | (modify-syntax-entry ?\( "()" st) | |
859 | (modify-syntax-entry ?\) ")(" st) | |
860 | (modify-syntax-entry ?\[ "(]" st) | |
861 | (modify-syntax-entry ?\] ")[" st) | |
862 | (modify-syntax-entry ?\{ "(}" st) | |
863 | (modify-syntax-entry ?\} "){" st) | |
864 | ;; comment character | |
865 | (modify-syntax-entry ?% "<" st) | |
866 | (modify-syntax-entry ?\n ">" st) | |
867 | ;; escape character, needed for embedded TeX code | |
868 | (modify-syntax-entry ?\\ "\\" st) | |
869 | st) | |
6b279740 | 870 | "Syntax table used in Metafont or MetaPost mode.") |
6b279740 | 871 | |
175069ef | 872 | (defvar meta-common-mode-map |
ff319790 | 873 | (let ((map (make-sparse-keymap))) |
ff319790 SM |
874 | ;; Comment Paragraphs: |
875 | ;; (define-key map "\M-a" 'backward-sentence) | |
876 | ;; (define-key map "\M-e" 'forward-sentence) | |
877 | ;; (define-key map "\M-h" 'mark-paragraph) | |
878 | ;; (define-key map "\M-q" 'fill-paragraph) | |
879 | ;; Navigation: | |
880 | (define-key map "\M-\C-a" 'meta-beginning-of-defun) | |
881 | (define-key map "\M-\C-e" 'meta-end-of-defun) | |
882 | (define-key map "\M-\C-h" 'meta-mark-defun) | |
883 | ;; Indentation: | |
884 | (define-key map "\M-\C-q" 'meta-indent-defun) | |
885 | (define-key map "\C-c\C-qe" 'meta-indent-defun) | |
886 | (define-key map "\C-c\C-qr" 'meta-indent-region) | |
887 | (define-key map "\C-c\C-qb" 'meta-indent-buffer) | |
888 | ;; Commenting Out: | |
889 | (define-key map "\C-c%" 'meta-comment-defun) | |
890 | ;; (define-key map "\C-uC-c%" 'meta-uncomment-defun) | |
891 | (define-key map "\C-c;" 'meta-comment-region) | |
892 | (define-key map "\C-c:" 'meta-uncomment-region) | |
893 | ;; Symbol Completion: | |
bcd70d97 | 894 | (define-key map "\M-\t" 'completion-at-point) |
ff319790 SM |
895 | ;; Shell Commands: |
896 | ;; (define-key map "\C-c\C-c" 'meta-command-file) | |
897 | ;; (define-key map "\C-c\C-k" 'meta-kill-job) | |
898 | ;; (define-key map "\C-c\C-l" 'meta-recenter-output) | |
899 | map) | |
6b279740 | 900 | "Keymap used in Metafont or MetaPost mode.") |
175069ef | 901 | (define-obsolete-variable-alias 'meta-mode-map 'meta-common-mode-map "24.1") |
6b279740 | 902 | |
a1506d29 | 903 | (easy-menu-define |
175069ef | 904 | meta-mode-menu meta-common-mode-map |
6b279740 RS |
905 | "Menu used in Metafont or MetaPost mode." |
906 | (list "Meta" | |
907 | ["Forward Environment" meta-beginning-of-defun t] | |
908 | ["Backward Environment" meta-end-of-defun t] | |
909 | "--" | |
910 | ["Indent Line" meta-indent-line t] | |
911 | ["Indent Environment" meta-indent-defun t] | |
a1506d29 | 912 | ["Indent Region" meta-indent-region |
6b279740 RS |
913 | :active (meta-mark-active)] |
914 | ["Indent Buffer" meta-indent-buffer t] | |
915 | "--" | |
916 | ["Comment Out Environment" meta-comment-defun t] | |
917 | ["Uncomment Environment" meta-uncomment-defun t] | |
a1506d29 | 918 | ["Comment Out Region" meta-comment-region |
6b279740 | 919 | :active (meta-mark-active)] |
a1506d29 | 920 | ["Uncomment Region" meta-uncomment-region |
6b279740 RS |
921 | :active (meta-mark-active)] |
922 | "--" | |
bcd70d97 | 923 | ["Complete Symbol" completion-at-point t] |
6b279740 RS |
924 | ; "--" |
925 | ; ["Command on Buffer" meta-command-file t] | |
926 | ; ["Kill Job" meta-kill-job t] | |
927 | ; ["Recenter Output Buffer" meta-recenter-output-buffer t] | |
928 | )) | |
929 | ||
930 | ;; Compatibility: XEmacs doesn't have the `mark-active' variable. | |
931 | (defun meta-mark-active () | |
932 | "Return whether the mark and region are currently active in this buffer." | |
3a51abf1 | 933 | (if (boundp 'mark-active) mark-active (mark))) |
6b279740 RS |
934 | |
935 | ||
936 | \f | |
937 | ;;; Hook variables. | |
938 | ||
28d16ed3 | 939 | (defcustom meta-mode-load-hook nil |
3406534c | 940 | "Hook evaluated when first loading Metafont or MetaPost mode." |
28d16ed3 AS |
941 | :type 'hook |
942 | :group 'meta-font) | |
943 | ||
944 | (defcustom meta-common-mode-hook nil | |
3406534c | 945 | "Hook evaluated by both `metafont-mode' and `metapost-mode'." |
28d16ed3 AS |
946 | :type 'hook |
947 | :group 'meta-font) | |
948 | ||
949 | (defcustom metafont-mode-hook nil | |
3406534c | 950 | "Hook evaluated by `metafont-mode' after `meta-common-mode-hook'." |
28d16ed3 AS |
951 | :type 'hook |
952 | :group 'meta-font) | |
953 | (defcustom metapost-mode-hook nil | |
3406534c | 954 | "Hook evaluated by `metapost-mode' after `meta-common-mode-hook'." |
28d16ed3 AS |
955 | :type 'hook |
956 | :group 'meta-font) | |
6b279740 RS |
957 | |
958 | ||
959 | \f | |
960 | ;;; Initialization. | |
961 | ||
175069ef | 962 | (define-derived-mode meta-common-mode prog-mode "-Meta-common-" |
6b279740 | 963 | "Common initialization for Metafont or MetaPost mode." |
175069ef SM |
964 | :abbrev-table meta-mode-abbrev-table |
965 | (set (make-local-variable 'paragraph-start) | |
966 | (concat page-delimiter "\\|$")) | |
967 | (set (make-local-variable 'paragraph-separate) | |
968 | (concat page-delimiter "\\|$")) | |
969 | ||
970 | (set (make-local-variable 'paragraph-ignore-fill-prefix) t) | |
971 | ||
972 | (set (make-local-variable 'comment-start-skip) "%+[ \t\f]*") | |
973 | (set (make-local-variable 'comment-start) "%") | |
974 | (set (make-local-variable 'comment-end) "") | |
975 | (set (make-local-variable 'comment-multi-line) nil) | |
6b279740 | 976 | |
89c19c1e MC |
977 | ;; We use `back-to-indentation' but \f is no indentation sign. |
978 | (modify-syntax-entry ?\f "_ ") | |
979 | ||
175069ef | 980 | (set (make-local-variable 'parse-sexp-ignore-comments) t) |
6b279740 | 981 | |
bcd70d97 | 982 | (add-hook 'completion-at-point-functions #'meta-completions-at-point nil t) |
175069ef SM |
983 | (set (make-local-variable 'comment-indent-function) #'meta-comment-indent) |
984 | (set (make-local-variable 'indent-line-function) #'meta-indent-line) | |
6b279740 RS |
985 | ;; No need to define a mode-specific 'indent-region-function. |
986 | ;; Simply use the generic 'indent-region and 'comment-region. | |
987 | ||
988 | ;; Set defaults for font-lock mode. | |
175069ef SM |
989 | (set (make-local-variable 'font-lock-defaults) |
990 | '(meta-font-lock-keywords | |
991 | nil nil ((?_ . "w")) nil | |
992 | (font-lock-comment-start-regexp . "%"))) | |
6b279740 RS |
993 | |
994 | ;; Activate syntax table, keymap and menu. | |
175069ef | 995 | (easy-menu-add meta-mode-menu)) |
6b279740 RS |
996 | |
997 | ||
1eadb66c | 998 | ;;;###autoload |
175069ef SM |
999 | (define-derived-mode metafont-mode meta-common-mode "Metafont" |
1000 | "Major mode for editing Metafont sources." | |
6b279740 | 1001 | ;; Set defaults for completion function. |
175069ef SM |
1002 | (set (make-local-variable 'meta-symbol-list) nil) |
1003 | (set (make-local-variable 'meta-symbol-changed) nil) | |
6b279740 | 1004 | (apply 'meta-add-symbols metafont-symbol-list) |
175069ef | 1005 | (set (make-local-variable 'meta-complete-list) |
6b279740 | 1006 | (list (list "\\<\\(\\sw+\\)" 1 'meta-symbol-list) |
175069ef | 1007 | (list "" 'ispell-complete-word)))) |
6b279740 | 1008 | |
1eadb66c | 1009 | ;;;###autoload |
175069ef SM |
1010 | (define-derived-mode metapost-mode meta-common-mode "MetaPost" |
1011 | "Major mode for editing MetaPost sources." | |
6b279740 | 1012 | ;; Set defaults for completion function. |
175069ef SM |
1013 | (set (make-local-variable 'meta-symbol-list) nil) |
1014 | (set (make-local-variable 'meta-symbol-changed) nil) | |
6b279740 | 1015 | (apply 'meta-add-symbols metapost-symbol-list) |
175069ef | 1016 | (set (make-local-variable 'meta-complete-list) |
6b279740 | 1017 | (list (list "\\<\\(\\sw+\\)" 1 'meta-symbol-list) |
175069ef | 1018 | (list "" 'ispell-complete-word)))) |
6b279740 RS |
1019 | |
1020 | ||
1021 | ;;; Just in case ... | |
1022 | ||
1023 | (provide 'meta-mode) | |
1024 | (run-hooks 'meta-mode-load-hook) | |
1025 | ||
1026 | ;;; meta-mode.el ends here |