| 1 | ;;; meta-mode.el --- major mode for editing Metafont or MetaPost sources. |
| 2 | |
| 3 | ;; Copyright (C) 1997 Free Software Foundation, Inc. |
| 4 | |
| 5 | ;; Author: Ulrik Vieth <vieth@thphy.uni-duesseldorf.de> |
| 6 | ;; Version: 1.0 |
| 7 | ;; Keywords: Metafont, MetaPost, tex, languages |
| 8 | |
| 9 | ;; This file is part of GNU Emacs. |
| 10 | |
| 11 | ;; GNU Emacs is free software; you can redistribute it and/or modify |
| 12 | ;; it under the terms of the GNU General Public License as published by |
| 13 | ;; the Free Software Foundation; either version 2, or (at your option) |
| 14 | ;; any later version. |
| 15 | |
| 16 | ;; GNU Emacs is distributed in the hope that it will be useful, |
| 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 |
| 22 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
| 23 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 24 | ;; Boston, MA 02111-1307, USA. |
| 25 | |
| 26 | ;;; Commentary: |
| 27 | |
| 28 | ;; Description: |
| 29 | ;; |
| 30 | ;; This Emacs Lisp package provides a major mode for editing Metafont |
| 31 | ;; or MetaPost sources. It includes all the necessary code to set up |
| 32 | ;; a major mode including an approriate syntax table, keymap, and a |
| 33 | ;; mode-specific pull-down menu. It also provides a sophisticated set |
| 34 | ;; of font-lock patterns, a fancy indentation function adapted from |
| 35 | ;; AUC-TeX's latex.el, and some basic mode-specific editing functions |
| 36 | ;; such as functions to move to the beginning or end of the enclosing |
| 37 | ;; environment, or to mark, re-indent, or comment-out environments. |
| 38 | ;; On the other hand, it doesn't yet provide any functionality for |
| 39 | ;; running Metafont or MetaPost in a shell buffer form within Emacs, |
| 40 | ;; but such functionality might be added later, either as part of this |
| 41 | ;; package or as a separate Emacs Lisp package. |
| 42 | |
| 43 | ;; Installation: |
| 44 | ;; |
| 45 | ;; An interface to running Metafont or MetaPost as a shell process |
| 46 | ;; from within Emacs is currently under development as a separate |
| 47 | ;; Emacs Lisp package (meta-buf.el). In order to have that package |
| 48 | ;; loaded automatically when first entering Metafont or MetaPost mode, |
| 49 | ;; you might use the load-hook provided in this package by adding |
| 50 | ;; these lines to your startup file: |
| 51 | ;; |
| 52 | ;; (add-hook 'meta-mode-load-hook |
| 53 | ;; '(lambda () (require 'meta-buf))) |
| 54 | ;; |
| 55 | ;; The add-on package loaded this way may in turn make use of the |
| 56 | ;; mode-hooks provided in this package to activate additional features |
| 57 | ;; when entering Metafont or MetaPost mode. |
| 58 | |
| 59 | ;; Font Lock Support: |
| 60 | ;; |
| 61 | ;; If you are using global-font-lock-mode (introduced in Emacs 19.31), |
| 62 | ;; fontification in Metafont and/or MetaPost mode will be activated |
| 63 | ;; automatically. To speed up fontification for the rather complex |
| 64 | ;; patterns used in these modes, it may be a good idea to activate |
| 65 | ;; lazy-lock as a font-lock-support-mode (introduced in Emacs 19.32) |
| 66 | ;; by adding these lines to your startup file: |
| 67 | ;; |
| 68 | ;; (global-font-lock-mode t) |
| 69 | ;; (setq font-lock-support-mode 'lazy-lock-mode) |
| 70 | ;; |
| 71 | ;; If you are using an older version of Emacs, which doesn't provide |
| 72 | ;; global-font-lock-mode or font-lock-support-mode, you can also |
| 73 | ;; activate fontification in Metafont and/or MetaPost mode by adding |
| 74 | ;; the following lines to your startup file: |
| 75 | ;; |
| 76 | ;; (add-hook 'meta-common-mode-hook 'turn-on-font-lock) |
| 77 | ;; (add-hook 'meta-common-mode-hook 'turn-on-lazy-lock) |
| 78 | |
| 79 | ;; Customization: |
| 80 | ;; |
| 81 | ;; Following the usual Emacs Lisp coding conventions, the major modes |
| 82 | ;; defined in this package provide several hook variables to allow for |
| 83 | ;; local customization when entering the modes. In particular, there |
| 84 | ;; is a `meta-common-mode-hook' which applies to both modes as well as |
| 85 | ;; `metafont-mode-hook' and `metapost-mode-hook' which apply to the |
| 86 | ;; individual modes. In addition, there are several variables and |
| 87 | ;; regexps controlling e.g. the behavior of the indentation function, |
| 88 | ;; which may be customized via `edit-options'. Please refer to the |
| 89 | ;; docstrings in the code below for details. |
| 90 | |
| 91 | ;; Availability: |
| 92 | ;; |
| 93 | ;; This package is currently available via my "TeX Software" WWW page: |
| 94 | ;; |
| 95 | ;; http://www.thphy.uni-duesseldorf.de/~vieth/subjects/tex/software.html |
| 96 | ;; |
| 97 | ;; As of this version 1.0, this package will be uploaded to CTAN |
| 98 | ;; archives, where it shall find a permanent home, presumably in |
| 99 | ;; tex-archive/support/emacs-modes. It will also be submitted for |
| 100 | ;; integration into the GNU Emacs distribution at that time. |
| 101 | ;; |
| 102 | ;; History: |
| 103 | ;; |
| 104 | ;; v 0.0 -- 1997/02/01 UV Started writing meta-mode.el. |
| 105 | ;; v 0.1 -- 1997/02/02 UV Added preliminary set of font-lock patterns. |
| 106 | ;; v 0.2 -- 1997/02/03 UV Improved and debugged font-lock patterns. |
| 107 | ;; Added indent-line-function for TAB. |
| 108 | ;; v 0.3 -- 1997/02/17 UV Improved font-lock patterns and syntax table. |
| 109 | ;; Improved and debbuged indentation function. |
| 110 | ;; v 0.4 -- 1997/02/18 UV Added functions to indent regions for M-C-q, |
| 111 | ;; also added a preliminary mode-specific menu. |
| 112 | ;; v 0.5 -- 1997/02/19 UV Added functions to skip to next or previous |
| 113 | ;; defun and to re-indent or comment-out defuns. |
| 114 | ;; v 0.6 -- 1997/02/20 UV More debugging, testing and clean-up. |
| 115 | ;; v 0.7 -- 1997/02/22 UV Use easymenu to define mode-specific menu. |
| 116 | ;; v 0.8 -- 1997/02/24 UV Added completion function for M-TAB. |
| 117 | ;; v 0.9 -- 1997/03/08 UV Added fill-paragraph function for comments. |
| 118 | ;; Also fixed a few remaining font-lock problems. |
| 119 | ;; Added meta-mode-load-hook to load meta-buf.el. |
| 120 | ;; v 1.0 -- 1997/04/07 UV Cleanup for official public release. |
| 121 | ;; |
| 122 | ;; Historical Footnote: |
| 123 | ;; |
| 124 | ;; This package was begun on February 1, 1997, exactly 20 years after |
| 125 | ;; the genesis of TeX took place according to Don Knuth's own account |
| 126 | ;; (cf. ``The Errors of TeX'', reprinted in ``Literate Programming'', |
| 127 | ;; Chapter 10, p. 249). What better date could there be to choose? |
| 128 | ;; |
| 129 | |
| 130 | \f |
| 131 | ;;; Code: |
| 132 | |
| 133 | (require 'easymenu) |
| 134 | |
| 135 | (defgroup meta-font nil |
| 136 | "Major mode for editing Metafont or MetaPost sources." |
| 137 | :group 'languages) |
| 138 | |
| 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\\)" |
| 195 | "[ \t]+\\(.*\\)[ \t]+" |
| 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 "\\>" |
| 202 | "[ \t]+\\(\\sw+\\|\\s_+\\|\\s.+\\)") |
| 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 "\\>" |
| 207 | "[ \t]+\\(\\sw+\\)" |
| 208 | "[ \t]*\\(\\sw+\\|\\s.+\\)" |
| 209 | "[ \t]*\\(\\sw+\\)") |
| 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 "\\>" |
| 216 | "\\([ \t]+\\(\\sw+\\)\\)*") |
| 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 "\\>" |
| 223 | "\\([ \t]+\\(\\sw+\\|\\s_+\\)\\)*") |
| 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 |
| 229 | (cons (concat "\\(expr\\)[ \t]+\\(\\sw+\\)" |
| 230 | "[ \t]+\\(of\\)[ \t]+\\(\\sw+\\)") |
| 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 "\\>" |
| 246 | "[ \t]+\\(\\sw+\\)") |
| 247 | '((1 font-lock-keyword-face) |
| 248 | (2 font-lock-reference-face))) |
| 249 | ;; embedded Metafont/MetaPost code in comments |
| 250 | (cons "|\\([^|]+\\)|" |
| 251 | '(1 font-lock-reference-face t)) |
| 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 | ;; |
| 265 | (if (looking-at "[ \t]*\\(\\sw+\\|\\s_+\\)") |
| 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. |
| 273 | (while (not (looking-at "[ \t]*\\(\\(,\\)\\|;\\|=\\|$\\)")) |
| 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 | ;; |
| 289 | ;; grep '\(let\|def\|vardef\|primarydef\|secondarydef\|tertiarydef\)' |
| 290 | ;; texmf/meta{font,post}/plain.{mf,mp} > {mf,mp}_plain.list |
| 291 | |
| 292 | (defconst meta-common-primitives-list |
| 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" |
| 320 | "yypart" "zscaled") |
| 321 | "List of primitives common to Metafont and MetaPost.") |
| 322 | |
| 323 | (defconst metafont-primitives-list |
| 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 | |
| 331 | (defconst metapost-primitives-list |
| 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 | |
| 341 | (defconst meta-common-plain-macros-list |
| 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 | |
| 356 | (defconst metafont-plain-macros-list |
| 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" |
| 373 | "showit" "slantfont" "smode" "titlefont" "vround") |
| 374 | "List of macros only defined in plain Metafont.") |
| 375 | |
| 376 | (defconst metapost-plain-macros-list |
| 377 | '("arrowhead" "bbox" "beginfig" "buildcycle" "center" "cutafter" |
| 378 | "cutbefore" "dashpattern" "dotlabel" "dotlabels" "drawarrow" |
| 379 | "drawdblarrow" "drawoptions" "endfig" "image" "label" "off" "on" |
| 380 | "thelabel") |
| 381 | "List of macros only defined in plain MetaPost.") |
| 382 | |
| 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" |
| 387 | "setcoords" "setrange") |
| 388 | "List of macros only defined in MetaPost \"graph\" package.") |
| 389 | |
| 390 | (defconst metapost-boxes-macros-list |
| 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 | |
| 416 | (defvar meta-symbol-changed nil |
| 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." |
| 477 | (interactive "*") |
| 478 | (let ((list meta-complete-list) |
| 479 | entry) |
| 480 | (while list |
| 481 | (setq entry (car list) |
| 482 | list (cdr list)) |
| 483 | (if (meta-looking-at-backward (car entry) 200) |
| 484 | (setq list nil))) |
| 485 | (if (numberp (nth 1 entry)) |
| 486 | (let* ((sub (nth 1 entry)) |
| 487 | (close (nth 3 entry)) |
| 488 | (begin (match-beginning sub)) |
| 489 | (end (match-end sub)) |
| 490 | (pattern (meta-match-buffer 0)) |
| 491 | (symbol (buffer-substring begin end)) |
| 492 | (list (funcall (nth 2 entry))) |
| 493 | (completion (try-completion symbol list))) |
| 494 | (cond ((eq completion t) |
| 495 | (and close |
| 496 | (not (looking-at (regexp-quote close))) |
| 497 | (insert close))) |
| 498 | ((null completion) |
| 499 | (error "Can't find completion for \"%s\"" pattern)) |
| 500 | ((not (string-equal symbol completion)) |
| 501 | (delete-region begin end) |
| 502 | (insert completion) |
| 503 | (and close |
| 504 | (eq (try-completion completion list) t) |
| 505 | (not (looking-at (regexp-quote close))) |
| 506 | (insert close))) |
| 507 | (t |
| 508 | (message "Making completion list...") |
| 509 | (let ((list (all-completions symbol list nil))) |
| 510 | (with-output-to-temp-buffer "*Completions*" |
| 511 | (display-completion-list list))) |
| 512 | (message "Making completion list... done")))) |
| 513 | (funcall (nth 1 entry))))) |
| 514 | |
| 515 | |
| 516 | (defun meta-looking-at-backward (regexp &optional limit) |
| 517 | ;; utility function used in `meta-complete-symbol' |
| 518 | (let ((pos (point))) |
| 519 | (save-excursion |
| 520 | (and (re-search-backward |
| 521 | regexp (if limit (max (point-min) (- (point) limit))) t) |
| 522 | (eq (match-end 0) pos))))) |
| 523 | |
| 524 | (defun meta-match-buffer (n) |
| 525 | ;; utility function used in `meta-complete-symbol' |
| 526 | (if (match-beginning n) |
| 527 | (let ((str (buffer-substring (match-beginning n) (match-end n)))) |
| 528 | (set-text-properties 0 (length str) nil str) |
| 529 | (copy-sequence str)) |
| 530 | "")) |
| 531 | |
| 532 | |
| 533 | \f |
| 534 | ;;; Indentation. |
| 535 | |
| 536 | (defcustom meta-indent-level 2 |
| 537 | "*Indentation of begin-end blocks in Metafont or MetaPost mode." |
| 538 | :type 'integer |
| 539 | :group 'meta-font) |
| 540 | |
| 541 | |
| 542 | (defcustom meta-left-comment-regexp "%%+" |
| 543 | "*Regexp matching comments that should be placed on the left margin." |
| 544 | :type 'regexp |
| 545 | :group 'meta-font) |
| 546 | |
| 547 | (defcustom meta-right-comment-regexp nil |
| 548 | "*Regexp matching comments that should be placed to the right margin." |
| 549 | :type '(choice regexp |
| 550 | (const :tag "None" nil)) |
| 551 | :group 'meta-font) |
| 552 | |
| 553 | (defcustom meta-ignore-comment-regexp "%[^%]" |
| 554 | "*Regexp matching comments that whose indentation should not be touched." |
| 555 | :type 'regexp |
| 556 | :group 'meta-font) |
| 557 | |
| 558 | |
| 559 | (defcustom meta-begin-environment-regexp |
| 560 | (concat "\\(begin\\(char\\|fig\\|gr\\(aph\\|oup\\)\\|logochar\\)\\|" |
| 561 | "def\\|for\\(\\|ever\\|suffixes\\)\\|if\\|mode_def\\|" |
| 562 | "primarydef\\|secondarydef\\|tertiarydef\\|vardef\\)") |
| 563 | "*Regexp matching the beginning of environments to be indented." |
| 564 | :type 'regexp |
| 565 | :group 'meta-font) |
| 566 | |
| 567 | (defcustom meta-end-environment-regexp |
| 568 | (concat "\\(end\\(char\\|def\\|f\\(ig\\|or\\)\\|gr\\(aph\\|oup\\)\\)" |
| 569 | "\\|fi\\)") |
| 570 | "*Regexp matching the end of environments to be indented." |
| 571 | :type 'regexp |
| 572 | :group 'meta-font) |
| 573 | |
| 574 | (defcustom meta-within-environment-regexp |
| 575 | ; (concat "\\(e\\(lse\\(\\|if\\)\\|xit\\(if\\|unless\\)\\)\\)") |
| 576 | (concat "\\(else\\(\\|if\\)\\)") |
| 577 | "*Regexp matching keywords within environments not to be indented." |
| 578 | :type 'regexp |
| 579 | :group 'meta-font) |
| 580 | |
| 581 | |
| 582 | (defun meta-comment-indent () |
| 583 | "Return the indentation for a comment in Metafont or MetaPost mode." |
| 584 | (if (and meta-left-comment-regexp |
| 585 | (looking-at meta-left-comment-regexp)) |
| 586 | (current-column) |
| 587 | (skip-chars-backward "\t ") |
| 588 | (max (if (bolp) 0 (1+ (current-column))) |
| 589 | comment-column))) |
| 590 | |
| 591 | (defun meta-indent-line () |
| 592 | "Indent the line containing point as Metafont or MetaPost source." |
| 593 | (interactive) |
| 594 | (let ((indent (meta-indent-calculate))) |
| 595 | (save-excursion |
| 596 | (if (/= (current-indentation) indent) |
| 597 | (let ((beg (progn (beginning-of-line) (point))) |
| 598 | (end (progn (back-to-indentation) (point)))) |
| 599 | (delete-region beg end) |
| 600 | (indent-to indent)))) |
| 601 | (if (< (current-column) indent) |
| 602 | (back-to-indentation)))) |
| 603 | |
| 604 | (defun meta-indent-calculate () |
| 605 | "Return the indentation of current line of Metafont or MetaPost source." |
| 606 | (save-excursion |
| 607 | (back-to-indentation) |
| 608 | (cond |
| 609 | ;; Comments to the left margin. |
| 610 | ((and meta-left-comment-regexp |
| 611 | (looking-at meta-left-comment-regexp)) |
| 612 | 0) |
| 613 | ;; Comments to the right margin. |
| 614 | ((and meta-right-comment-regexp |
| 615 | (looking-at meta-right-comment-regexp)) |
| 616 | comment-column) |
| 617 | ;; Comments best left alone. |
| 618 | ((and meta-ignore-comment-regexp |
| 619 | (looking-at meta-ignore-comment-regexp)) |
| 620 | (current-indentation)) |
| 621 | ;; Backindent at end of environments. |
| 622 | ((looking-at |
| 623 | (concat "\\<" meta-end-environment-regexp "\\>")) |
| 624 | (- (meta-indent-calculate-last) meta-indent-level)) |
| 625 | ;; Backindent at keywords within environments. |
| 626 | ((looking-at |
| 627 | (concat "\\<" meta-within-environment-regexp "\\>")) |
| 628 | (- (meta-indent-calculate-last) meta-indent-level)) |
| 629 | (t (meta-indent-calculate-last))))) |
| 630 | |
| 631 | (defun meta-indent-calculate-last () |
| 632 | "Return the indentation of previous line of Metafont or MetaPost source." |
| 633 | (save-restriction |
| 634 | (widen) |
| 635 | (skip-chars-backward "\n\t ") |
| 636 | (move-to-column (current-indentation)) |
| 637 | ;; Ignore comments. |
| 638 | (while (and (looking-at comment-start) (not (bobp))) |
| 639 | (skip-chars-backward "\n\t ") |
| 640 | (if (not (bobp)) |
| 641 | (move-to-column (current-indentation)))) |
| 642 | (cond |
| 643 | ((bobp) 0) |
| 644 | (t (+ (current-indentation) |
| 645 | (meta-indent-level-count) |
| 646 | (cond |
| 647 | ;; Compensate for backindent at end of environments. |
| 648 | ((looking-at |
| 649 | (concat "\\<"meta-end-environment-regexp "\\>")) |
| 650 | meta-indent-level) |
| 651 | ;; Compensate for backindent within environments. |
| 652 | ((looking-at |
| 653 | (concat "\\<" meta-within-environment-regexp "\\>")) |
| 654 | meta-indent-level) |
| 655 | (t 0))))) |
| 656 | )) |
| 657 | |
| 658 | (defun meta-indent-level-count () |
| 659 | "Count indentation change for begin-end commands in the current line." |
| 660 | (save-excursion |
| 661 | (save-restriction |
| 662 | (let ((count 0)) |
| 663 | (narrow-to-region |
| 664 | (point) (save-excursion |
| 665 | (re-search-forward "[^\\\\\"]%\\|\n\\|\\'" nil t) |
| 666 | (backward-char) (point))) |
| 667 | (while (re-search-forward "\\<\\sw+\\>\\|(\\|)" nil t) |
| 668 | (save-excursion |
| 669 | (goto-char (match-beginning 0)) |
| 670 | (cond |
| 671 | ;; Count number of begin-end keywords within line. |
| 672 | ((looking-at |
| 673 | (concat "\\<" meta-begin-environment-regexp "\\>")) |
| 674 | (setq count (+ count meta-indent-level))) |
| 675 | ((looking-at |
| 676 | (concat "\\<" meta-end-environment-regexp "\\>")) |
| 677 | (setq count (- count meta-indent-level))) |
| 678 | ;; Count number of open-close parentheses within line. |
| 679 | ((looking-at "(") |
| 680 | (setq count (+ count meta-indent-level))) |
| 681 | ((looking-at ")") |
| 682 | (setq count (- count meta-indent-level))) |
| 683 | ))) |
| 684 | count)))) |
| 685 | |
| 686 | |
| 687 | \f |
| 688 | ;;; Filling paragraphs. |
| 689 | |
| 690 | (defun meta-fill-paragraph (&optional justify) |
| 691 | "Like \\[fill-paragraph], but handle Metafont or MetaPost comments. |
| 692 | If any part of the current line is a comment, fill the comment or the |
| 693 | paragraph of it that point is in, preserving the comment's indentation |
| 694 | and initial semicolons." |
| 695 | (interactive "P") |
| 696 | (let (has-comment ; Non-nil if line contains a comment. |
| 697 | has-code-and-comment ; Non-nil if line contains code and a comment. |
| 698 | comment-fill-prefix ; If has-comment, fill-prefix for the comment. |
| 699 | ) |
| 700 | ;; Figure out what kind of comment we are looking at. |
| 701 | (save-excursion |
| 702 | (beginning-of-line) |
| 703 | (cond |
| 704 | ;; A line with nothing but a comment on it? |
| 705 | ((looking-at (concat "[ \t]*" comment-start-skip)) |
| 706 | (setq has-comment t) |
| 707 | (setq comment-fill-prefix |
| 708 | (buffer-substring (match-beginning 0) (match-end 0)))) |
| 709 | ;; A line with some code, followed by a comment? |
| 710 | ((condition-case nil |
| 711 | (save-restriction |
| 712 | (narrow-to-region (point-min) |
| 713 | (save-excursion (end-of-line) (point))) |
| 714 | (while (not (looking-at (concat comment-start "\\|$"))) |
| 715 | (skip-chars-forward (concat "^" comment-start "\n\"\\\\")) |
| 716 | (cond |
| 717 | ((eq (char-after (point)) ?\\) (forward-char 2)) |
| 718 | ((eq (char-after (point)) ?\") (forward-sexp 1)))) |
| 719 | (looking-at comment-start-skip)) |
| 720 | (error nil)) |
| 721 | (setq has-comment t |
| 722 | has-code-and-comment t) |
| 723 | (setq comment-fill-prefix |
| 724 | (concat (make-string (/ (current-column) 8) ?\t) |
| 725 | (make-string (% (current-column) 8) ?\ ) |
| 726 | (buffer-substring (match-beginning 0) (match-end 0))))) |
| 727 | )) |
| 728 | (if (not has-comment) |
| 729 | (fill-paragraph justify) |
| 730 | ;; Narrow to include only the comment, and then fill the region. |
| 731 | (save-excursion |
| 732 | (save-restriction |
| 733 | (beginning-of-line) |
| 734 | (narrow-to-region |
| 735 | ;; Find the first line we should include in the region to fill. |
| 736 | (save-excursion |
| 737 | (while (and (zerop (forward-line -1)) |
| 738 | (looking-at (concat "^[ \t]*" comment-start)))) |
| 739 | (or (looking-at (concat ".*" comment-start)) |
| 740 | (forward-line 1)) |
| 741 | (point)) |
| 742 | ;; Find the beginning of the first line past the region to fill. |
| 743 | (save-excursion |
| 744 | (while (progn (forward-line 1) |
| 745 | (looking-at (concat "^[ \t]*" comment-start)))) |
| 746 | (point))) |
| 747 | (let* ((paragraph-start |
| 748 | (concat paragraph-start "\\|[ \t%]*$")) |
| 749 | (paragraph-separate |
| 750 | (concat paragraph-start "\\|[ \t%]*$")) |
| 751 | (paragraph-ignore-fill-prefix nil) |
| 752 | (fill-prefix comment-fill-prefix) |
| 753 | (after-line (if has-code-and-comment |
| 754 | (save-excursion (forward-line 1) (point)))) |
| 755 | (end (progn (forward-paragraph) |
| 756 | (or (bolp) (newline 1)) |
| 757 | (point))) |
| 758 | (beg (progn (backward-paragraph) |
| 759 | (if (eq (point) after-line) (forward-line -1)) |
| 760 | (point))) |
| 761 | (after-pos (save-excursion |
| 762 | (goto-char beg) |
| 763 | (if (not (looking-at fill-prefix)) |
| 764 | (progn |
| 765 | (re-search-forward comment-start-skip) |
| 766 | (point))))) |
| 767 | ) |
| 768 | (fill-region-as-paragraph beg end justify nil after-pos)) |
| 769 | ))) |
| 770 | t)) |
| 771 | |
| 772 | |
| 773 | \f |
| 774 | ;;; Editing commands. |
| 775 | |
| 776 | (defcustom meta-begin-defun-regexp |
| 777 | (concat "\\(begin\\(char\\|fig\\|logochar\\)\\|def\\|mode_def\\|" |
| 778 | "primarydef\\|secondarydef\\|tertiarydef\\|vardef\\)") |
| 779 | "*Regexp matching beginning of defuns in Metafont or MetaPost mode." |
| 780 | :type 'regexp |
| 781 | :group 'meta-font) |
| 782 | |
| 783 | (defcustom meta-end-defun-regexp |
| 784 | (concat "\\(end\\(char\\|def\\|fig\\)\\)") |
| 785 | "*Regexp matching the end of defuns in Metafont or MetaPost mode." |
| 786 | :type 'regexp |
| 787 | :group 'meta-font) |
| 788 | |
| 789 | |
| 790 | (defun meta-beginning-of-defun (&optional arg) |
| 791 | "Move backward to beginnning of a defun in Metafont or MetaPost code. |
| 792 | With numeric argument, do it that many times. |
| 793 | Negative arg -N means move forward to Nth following beginning of defun. |
| 794 | Returns t unless search stops due to beginning or end of buffer." |
| 795 | (interactive "p") |
| 796 | (if (or (null arg) (= 0 arg)) (setq arg 1)) |
| 797 | (and arg (< arg 0) (not (eobp)) (forward-char 1)) |
| 798 | (and (re-search-backward |
| 799 | (concat "\\<" meta-begin-defun-regexp "\\>") nil t arg) |
| 800 | (progn (goto-char (match-beginning 0)) |
| 801 | (skip-chars-backward "%") |
| 802 | (skip-chars-backward " \t") t))) |
| 803 | |
| 804 | (defun meta-end-of-defun (&optional arg) |
| 805 | "Move forward to end of a defun in Metafont or MetaPost code. |
| 806 | With numeric argument, do it that many times. |
| 807 | Negative argument -N means move back to Nth preceding end of defun. |
| 808 | Returns t unless search stops due to beginning or end of buffer." |
| 809 | (interactive "p") |
| 810 | (if (or (null arg) (= 0 arg)) (setq arg 1)) |
| 811 | (and (< arg 0) (not (bobp)) (forward-line -1)) |
| 812 | (and (re-search-forward |
| 813 | (concat "\\<" meta-end-defun-regexp "\\>") nil t arg) |
| 814 | (progn (goto-char (match-end 0)) |
| 815 | (skip-chars-forward ";") |
| 816 | (skip-chars-forward " \t") |
| 817 | (if (looking-at "\n") (forward-line 1)) t))) |
| 818 | |
| 819 | |
| 820 | (defun meta-comment-region (beg end &optional arg) |
| 821 | "Comment out active region as Metafont or MetaPost source." |
| 822 | (interactive "r") |
| 823 | (comment-region beg end arg)) |
| 824 | |
| 825 | (defun meta-uncomment-region (beg end) |
| 826 | "Uncomment active region as Metafont or MetaPost source." |
| 827 | (interactive "r") |
| 828 | (comment-region beg end -1)) |
| 829 | |
| 830 | (defun meta-comment-defun (&optional arg) |
| 831 | "Comment out current environment as Metafont or MetaPost source. |
| 832 | With prefix argument, uncomment the environment. |
| 833 | The environment used is the one that contains point or follows point." |
| 834 | (interactive "P") |
| 835 | (save-excursion |
| 836 | (let* ((end (if (meta-end-of-defun) (point) (point-max))) |
| 837 | (beg (if (meta-beginning-of-defun) (point) (point-min)))) |
| 838 | (comment-region beg end arg)))) |
| 839 | |
| 840 | (defun meta-uncomment-defun () |
| 841 | "Uncomment current environment as Metafont or MetaPost source." |
| 842 | (interactive) |
| 843 | (meta-comment-defun -1)) |
| 844 | |
| 845 | |
| 846 | (defun meta-indent-region (beg end) |
| 847 | "Indent the active region as Metafont or MetaPost source." |
| 848 | (interactive "r") |
| 849 | (indent-region beg end nil)) |
| 850 | |
| 851 | (defun meta-indent-buffer () |
| 852 | "Indent the whole buffer contents as Metafont or MetaPost source." |
| 853 | (interactive) |
| 854 | (save-excursion |
| 855 | (indent-region (point-min) (point-max) nil))) |
| 856 | |
| 857 | (defun meta-indent-defun () |
| 858 | "Indent the current environment as Metafont or MetaPost source. |
| 859 | The environment indented is the one that contains point or follows point." |
| 860 | (interactive) |
| 861 | (save-excursion |
| 862 | (let* ((end (if (meta-end-of-defun) (point) (point-max))) |
| 863 | (beg (if (meta-beginning-of-defun) (point) (point-min)))) |
| 864 | (indent-region beg end nil)))) |
| 865 | |
| 866 | |
| 867 | (defun meta-mark-defun () |
| 868 | "Put mark at end of the environment, point at the beginning. |
| 869 | The environment marked is the one that contains point or follows point." |
| 870 | (interactive) |
| 871 | (push-mark (point)) |
| 872 | (meta-end-of-defun) |
| 873 | (push-mark (point) nil t) |
| 874 | (meta-beginning-of-defun)) |
| 875 | |
| 876 | |
| 877 | \f |
| 878 | ;;; Syntax table, keymap and menu. |
| 879 | |
| 880 | (defvar meta-mode-abbrev-table nil |
| 881 | "Abbrev table used in Metafont or MetaPost mode.") |
| 882 | (define-abbrev-table 'meta-mode-abbrev-table ()) |
| 883 | |
| 884 | (defvar meta-mode-syntax-table nil |
| 885 | "Syntax table used in Metafont or MetaPost mode.") |
| 886 | (if meta-mode-syntax-table |
| 887 | () |
| 888 | (setq meta-mode-syntax-table (make-syntax-table)) |
| 889 | ;; underscores are word constituents |
| 890 | (modify-syntax-entry ?_ "w" meta-mode-syntax-table) |
| 891 | ;; miscellaneous non-word symbols |
| 892 | (modify-syntax-entry ?# "_" meta-mode-syntax-table) |
| 893 | (modify-syntax-entry ?@ "_" meta-mode-syntax-table) |
| 894 | (modify-syntax-entry ?$ "_" meta-mode-syntax-table) |
| 895 | (modify-syntax-entry ?? "_" meta-mode-syntax-table) |
| 896 | (modify-syntax-entry ?! "_" meta-mode-syntax-table) |
| 897 | ;; binary operators |
| 898 | (modify-syntax-entry ?& "." meta-mode-syntax-table) |
| 899 | (modify-syntax-entry ?+ "." meta-mode-syntax-table) |
| 900 | (modify-syntax-entry ?- "." meta-mode-syntax-table) |
| 901 | (modify-syntax-entry ?/ "." meta-mode-syntax-table) |
| 902 | (modify-syntax-entry ?* "." meta-mode-syntax-table) |
| 903 | (modify-syntax-entry ?. "." meta-mode-syntax-table) |
| 904 | (modify-syntax-entry ?: "." meta-mode-syntax-table) |
| 905 | (modify-syntax-entry ?= "." meta-mode-syntax-table) |
| 906 | (modify-syntax-entry ?< "." meta-mode-syntax-table) |
| 907 | (modify-syntax-entry ?> "." meta-mode-syntax-table) |
| 908 | (modify-syntax-entry ?| "." meta-mode-syntax-table) |
| 909 | ;; opening and closing delimiters |
| 910 | (modify-syntax-entry ?\( "()" meta-mode-syntax-table) |
| 911 | (modify-syntax-entry ?\) ")(" meta-mode-syntax-table) |
| 912 | (modify-syntax-entry ?\[ "(]" meta-mode-syntax-table) |
| 913 | (modify-syntax-entry ?\] ")[" meta-mode-syntax-table) |
| 914 | (modify-syntax-entry ?\{ "(}" meta-mode-syntax-table) |
| 915 | (modify-syntax-entry ?\} "){" meta-mode-syntax-table) |
| 916 | ;; comment character |
| 917 | (modify-syntax-entry ?% "<" meta-mode-syntax-table) |
| 918 | (modify-syntax-entry ?\n ">" meta-mode-syntax-table) |
| 919 | ;; escape character, needed for embedded TeX code |
| 920 | (modify-syntax-entry ?\\ "\\" meta-mode-syntax-table) |
| 921 | ) |
| 922 | |
| 923 | (defvar meta-mode-map nil |
| 924 | "Keymap used in Metafont or MetaPost mode.") |
| 925 | (if meta-mode-map |
| 926 | () |
| 927 | (setq meta-mode-map (make-sparse-keymap)) |
| 928 | (define-key meta-mode-map "\t" 'meta-indent-line) |
| 929 | (define-key meta-mode-map "\C-m" 'reindent-then-newline-and-indent) |
| 930 | ;; Comment Paragraphs: |
| 931 | ; (define-key meta-mode-map "\M-a" 'backward-sentence) |
| 932 | ; (define-key meta-mode-map "\M-e" 'forward-sentence) |
| 933 | ; (define-key meta-mode-map "\M-h" 'mark-paragraph) |
| 934 | ; (define-key meta-mode-map "\M-q" 'fill-paragraph) |
| 935 | ;; Navigation: |
| 936 | (define-key meta-mode-map "\M-\C-a" 'meta-beginning-of-defun) |
| 937 | (define-key meta-mode-map "\M-\C-e" 'meta-end-of-defun) |
| 938 | (define-key meta-mode-map "\M-\C-h" 'meta-mark-defun) |
| 939 | ;; Indentation: |
| 940 | (define-key meta-mode-map "\M-\C-q" 'meta-indent-defun) |
| 941 | (define-key meta-mode-map "\C-c\C-qe" 'meta-indent-defun) |
| 942 | (define-key meta-mode-map "\C-c\C-qr" 'meta-indent-region) |
| 943 | (define-key meta-mode-map "\C-c\C-qb" 'meta-indent-buffer) |
| 944 | ;; Commenting Out: |
| 945 | (define-key meta-mode-map "\C-c%" 'meta-comment-defun) |
| 946 | ; (define-key meta-mode-map "\C-uC-c%" 'meta-uncomment-defun) |
| 947 | (define-key meta-mode-map "\C-c;" 'meta-comment-region) |
| 948 | (define-key meta-mode-map "\C-c:" 'meta-uncomment-region) |
| 949 | ;; Symbol Completion: |
| 950 | (define-key meta-mode-map "\M-\t" 'meta-complete-symbol) |
| 951 | ;; Shell Commands: |
| 952 | ; (define-key meta-mode-map "\C-c\C-c" 'meta-command-file) |
| 953 | ; (define-key meta-mode-map "\C-c\C-k" 'meta-kill-job) |
| 954 | ; (define-key meta-mode-map "\C-c\C-l" 'meta-recenter-output) |
| 955 | ) |
| 956 | |
| 957 | (easy-menu-define |
| 958 | meta-mode-menu meta-mode-map |
| 959 | "Menu used in Metafont or MetaPost mode." |
| 960 | (list "Meta" |
| 961 | ["Forward Environment" meta-beginning-of-defun t] |
| 962 | ["Backward Environment" meta-end-of-defun t] |
| 963 | "--" |
| 964 | ["Indent Line" meta-indent-line t] |
| 965 | ["Indent Environment" meta-indent-defun t] |
| 966 | ["Indent Region" meta-indent-region |
| 967 | :active (meta-mark-active)] |
| 968 | ["Indent Buffer" meta-indent-buffer t] |
| 969 | "--" |
| 970 | ["Comment Out Environment" meta-comment-defun t] |
| 971 | ["Uncomment Environment" meta-uncomment-defun t] |
| 972 | ["Comment Out Region" meta-comment-region |
| 973 | :active (meta-mark-active)] |
| 974 | ["Uncomment Region" meta-uncomment-region |
| 975 | :active (meta-mark-active)] |
| 976 | "--" |
| 977 | ["Complete Symbol" meta-complete-symbol t] |
| 978 | ; "--" |
| 979 | ; ["Command on Buffer" meta-command-file t] |
| 980 | ; ["Kill Job" meta-kill-job t] |
| 981 | ; ["Recenter Output Buffer" meta-recenter-output-buffer t] |
| 982 | )) |
| 983 | |
| 984 | ;; Compatibility: XEmacs doesn't have the `mark-active' variable. |
| 985 | (defun meta-mark-active () |
| 986 | "Return whether the mark and region are currently active in this buffer." |
| 987 | (or (and (boundp 'mark-active) mark-active) (mark))) |
| 988 | |
| 989 | |
| 990 | \f |
| 991 | ;;; Hook variables. |
| 992 | |
| 993 | (defcustom meta-mode-load-hook nil |
| 994 | "*Hook evaluated when first loading Metafont or MetaPost mode." |
| 995 | :type 'hook |
| 996 | :group 'meta-font) |
| 997 | |
| 998 | (defcustom meta-common-mode-hook nil |
| 999 | "*Hook evaluated by both `metafont-mode' and `metapost-mode'." |
| 1000 | :type 'hook |
| 1001 | :group 'meta-font) |
| 1002 | |
| 1003 | (defcustom metafont-mode-hook nil |
| 1004 | "*Hook evaluated by `metafont-mode' after `meta-common-mode-hook'." |
| 1005 | :type 'hook |
| 1006 | :group 'meta-font) |
| 1007 | (defcustom metapost-mode-hook nil |
| 1008 | "*Hook evaluated by `metapost-mode' after `meta-common-mode-hook'." |
| 1009 | :type 'hook |
| 1010 | :group 'meta-font) |
| 1011 | |
| 1012 | |
| 1013 | \f |
| 1014 | ;;; Initialization. |
| 1015 | |
| 1016 | (defun meta-common-initialization () |
| 1017 | "Common initialization for Metafont or MetaPost mode." |
| 1018 | (kill-all-local-variables) |
| 1019 | |
| 1020 | (make-local-variable 'paragraph-start) |
| 1021 | (make-local-variable 'paragraph-separate) |
| 1022 | (setq paragraph-start |
| 1023 | (concat page-delimiter "\\|$")) |
| 1024 | (setq paragraph-separate |
| 1025 | (concat page-delimiter "\\|$")) |
| 1026 | |
| 1027 | (make-local-variable 'paragraph-ignore-fill-prefix) |
| 1028 | (setq paragraph-ignore-fill-prefix t) |
| 1029 | |
| 1030 | (make-local-variable 'comment-start-skip) |
| 1031 | (make-local-variable 'comment-start) |
| 1032 | (make-local-variable 'comment-end) |
| 1033 | (make-local-variable 'comment-multi-line) |
| 1034 | (setq comment-start-skip "%+[ \t]*") |
| 1035 | (setq comment-start "%") |
| 1036 | (setq comment-end "") |
| 1037 | (setq comment-multi-line nil) |
| 1038 | |
| 1039 | (make-local-variable 'parse-sexp-ignore-comments) |
| 1040 | (setq parse-sexp-ignore-comments t) |
| 1041 | |
| 1042 | (make-local-variable 'comment-indent-function) |
| 1043 | (setq comment-indent-function 'meta-comment-indent) |
| 1044 | (make-local-variable 'fill-paragraph-function) |
| 1045 | (setq fill-paragraph-function 'meta-fill-paragraph) |
| 1046 | (make-local-variable 'indent-line-function) |
| 1047 | (setq indent-line-function 'meta-indent-line) |
| 1048 | ;; No need to define a mode-specific 'indent-region-function. |
| 1049 | ;; Simply use the generic 'indent-region and 'comment-region. |
| 1050 | |
| 1051 | ;; Set defaults for font-lock mode. |
| 1052 | (make-local-variable 'font-lock-defaults) |
| 1053 | (setq font-lock-defaults |
| 1054 | '(meta-font-lock-keywords |
| 1055 | nil nil ((?_ . "w")) nil |
| 1056 | (font-lock-comment-start-regexp . "%"))) |
| 1057 | |
| 1058 | ;; Activate syntax table, keymap and menu. |
| 1059 | (setq local-abbrev-table meta-mode-abbrev-table) |
| 1060 | (set-syntax-table meta-mode-syntax-table) |
| 1061 | (use-local-map meta-mode-map) |
| 1062 | (easy-menu-add meta-mode-menu) |
| 1063 | ) |
| 1064 | |
| 1065 | |
| 1066 | ;;;###autoload |
| 1067 | (defun metafont-mode () |
| 1068 | "Major mode for editing Metafont sources. |
| 1069 | Special commands: |
| 1070 | \\{meta-mode-map} |
| 1071 | |
| 1072 | Turning on Metafont mode calls the value of the variables |
| 1073 | `meta-common-mode-hook' and `metafont-mode-hook'." |
| 1074 | (interactive) |
| 1075 | (meta-common-initialization) |
| 1076 | (setq mode-name "Metafont") |
| 1077 | (setq major-mode 'metafont-mode) |
| 1078 | |
| 1079 | ;; Set defaults for completion function. |
| 1080 | (make-local-variable 'meta-symbol-list) |
| 1081 | (make-local-variable 'meta-symbol-changed) |
| 1082 | (make-local-variable 'meta-complete-list) |
| 1083 | (setq meta-symbol-list nil) |
| 1084 | (setq meta-symbol-changed nil) |
| 1085 | (apply 'meta-add-symbols metafont-symbol-list) |
| 1086 | (setq meta-complete-list |
| 1087 | (list (list "\\<\\(\\sw+\\)" 1 'meta-symbol-list) |
| 1088 | (list "" 'ispell-complete-word))) |
| 1089 | (run-hooks 'meta-common-mode-hook 'metafont-mode-hook)) |
| 1090 | |
| 1091 | ;;;###autoload |
| 1092 | (defun metapost-mode () |
| 1093 | "Major mode for editing MetaPost sources. |
| 1094 | Special commands: |
| 1095 | \\{meta-mode-map} |
| 1096 | |
| 1097 | Turning on MetaPost mode calls the value of the variable |
| 1098 | `meta-common-mode-hook' and `metafont-mode-hook'." |
| 1099 | (interactive) |
| 1100 | (meta-common-initialization) |
| 1101 | (setq mode-name "MetaPost") |
| 1102 | (setq major-mode 'metapost-mode) |
| 1103 | |
| 1104 | ;; Set defaults for completion function. |
| 1105 | (make-local-variable 'meta-symbol-list) |
| 1106 | (make-local-variable 'meta-symbol-changed) |
| 1107 | (make-local-variable 'meta-complete-list) |
| 1108 | (setq meta-symbol-list nil) |
| 1109 | (setq meta-symbol-changed nil) |
| 1110 | (apply 'meta-add-symbols metapost-symbol-list) |
| 1111 | (setq meta-complete-list |
| 1112 | (list (list "\\<\\(\\sw+\\)" 1 'meta-symbol-list) |
| 1113 | (list "" 'ispell-complete-word))) |
| 1114 | (run-hooks 'meta-common-mode-hook 'metapost-mode-hook)) |
| 1115 | |
| 1116 | |
| 1117 | ;;; Just in case ... |
| 1118 | |
| 1119 | (provide 'meta-mode) |
| 1120 | (run-hooks 'meta-mode-load-hook) |
| 1121 | |
| 1122 | ;;; meta-mode.el ends here |