lisp/progmodes/ps-mode.el

   1 ;;; ps-mode.el --- PostScript mode for GNU Emacs
   2
   3 ;; Copyright (C) 1999, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
   4 ;; Free Software Foundation, Inc.
   5
   6 ;; Author:     Peter Kleiweg <p.c.j.kleiweg@rug.nl>
   7 ;; Maintainer: Peter Kleiweg <p.c.j.kleiweg@rug.nl>
   8 ;; Created:    20 Aug 1997
   9 ;; Version:    1.1h
  10 ;; Keywords:   PostScript, languages
  11
  12 ;; Yoni Rabkin <yoni@rabkins.net> contacted the maintainer of this
  13 ;; file on 18/3/2008, and the maintainer agreed that when a bug is
  14 ;; filed in the Emacs bug reporting system against this file, a copy
  15 ;; of the bug report be sent to the maintainer's email address, but
  16 ;; only if: "... those e-mails have a link to the bug report system,
  17 ;; where I can cancel these e-mails if I want to.".
  18
  19 ;; This file is part of GNU Emacs.
  20
  21 ;; GNU Emacs is free software: you can redistribute it and/or modify
  22 ;; it under the terms of the GNU General Public License as published by
  23 ;; the Free Software Foundation, either version 3 of the License, or
  24 ;; (at your option) any later version.
  25
  26 ;; GNU Emacs is distributed in the hope that it will be useful,
  27 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  28 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  29 ;; GNU General Public License for more details.
  30
  31 ;; You should have received a copy of the GNU General Public License
  32 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  33
  34 ;;; Commentary:
  35
  36 \f
  37 ;;; Code:
  38
  39 (defconst ps-mode-version "1.1h, 16 Jun 2005")
  40 (defconst ps-mode-maintainer-address "Peter Kleiweg <p.c.j.kleiweg@rug.nl>")
  41
  42 (require 'comint)
  43 (require 'easymenu)
  44
  45 ;; Define core `PostScript' group.
  46 (defgroup PostScript nil
  47   "PostScript mode for Emacs."
  48   :group 'languages)
  49
  50 (defgroup PostScript-edit nil
  51   "PostScript editing."
  52   :link '(custom-group-link :tag "Font Lock Faces group" font-lock-faces)
  53   :prefix "ps-mode-"
  54   :group 'PostScript)
  55
  56 (defgroup PostScript-interaction nil
  57   "PostScript interaction."
  58   :prefix "ps-run-"
  59   :group 'PostScript)
  60
  61 ;; User variables.
  62
  63 (defcustom ps-mode-auto-indent t
  64   "*Should we use autoindent?"
  65   :group 'PostScript-edit
  66   :type 'boolean)
  67
  68 (defcustom ps-mode-tab 4
  69   "*Number of spaces to use when indenting."
  70   :group 'PostScript-edit
  71   :type 'integer)
  72
  73 (defcustom ps-mode-paper-size '(595 842)
  74   "*Default paper size.
  75
  76 When inserting an EPSF template these values are used
  77 to set the boundingbox to include the whole page.
  78 When the figure is finished these values should be replaced."
  79   :group 'PostScript-edit
  80   :type '(choice
  81           (const :tag "letter"       (612  792))
  82           (const :tag "legal"        (612 1008))
  83           (const :tag "a0"          (2380 3368))
  84           (const :tag "a1"          (1684 2380))
  85           (const :tag "a2"          (1190 1684))
  86           (const :tag "a3"           (842 1190))
  87           (const :tag "a4"           (595  842))
  88           (const :tag "a5"           (421  595))
  89           (const :tag "a6"           (297  421))
  90           (const :tag "a7"           (210  297))
  91           (const :tag "a8"           (148  210))
  92           (const :tag "a9"           (105  148))
  93           (const :tag "a10"           (74  105))
  94           (const :tag "b0"          (2836 4008))
  95           (const :tag "b1"          (2004 2836))
  96           (const :tag "b2"          (1418 2004))
  97           (const :tag "b3"          (1002 1418))
  98           (const :tag "b4"           (709 1002))
  99           (const :tag "b5"           (501  709))
 100           (const :tag "archE"       (2592 3456))
 101           (const :tag "archD"       (1728 2592))
 102           (const :tag "archC"       (1296 1728))
 103           (const :tag "archB"        (864 1296))
 104           (const :tag "archA"        (648  864))
 105           (const :tag "flsa"         (612  936))
 106           (const :tag "flse"         (612  936))
 107           (const :tag "halfletter"   (396  612))
 108           (const :tag "11x17"        (792 1224))
 109           (const :tag "tabloid"      (792 1224))
 110           (const :tag "ledger"      (1224  792))
 111           (const :tag "csheet"      (1224 1584))
 112           (const :tag "dsheet"      (1584 2448))
 113           (const :tag "esheet"      (2448 3168))))
 114
 115 (defcustom ps-mode-print-function
 116   (lambda ()
 117      (let ((lpr-switches nil)
 118            (lpr-command (if (memq system-type '(usg-unix-v hpux irix))
 119                             "lp" "lpr")))
 120        (lpr-buffer)))
 121   "*Lisp function to print current buffer as PostScript."
 122   :group 'PostScript-edit
 123   :type 'function)
 124
 125 (defcustom ps-run-prompt "\\(GS\\(<[0-9]+\\)?>\\)+"
 126   "*Regexp to match prompt in interactive PostScript."
 127   :group 'PostScript-interaction
 128   :type 'regexp)
 129
 130 (defcustom ps-run-font-lock-keywords-2
 131   (append (unless (string= ps-run-prompt "")
 132             (list (list (if (= ?^ (string-to-char ps-run-prompt))
 133                             ps-run-prompt
 134                           (concat "^" ps-run-prompt))
 135                         '(0 font-lock-function-name-face nil nil))))
 136           '((">>showpage, press <return> to continue<<"
 137              (0 font-lock-keyword-face nil nil))
 138             ("^\\(Error\\|Can't\\).*"
 139              (0 font-lock-warning-face nil nil))
 140             ("^\\(Current file position is\\) \\([0-9]+\\)"
 141              (1 font-lock-comment-face nil nil)
 142              (2 font-lock-warning-face nil nil))))
 143   "*Medium level highlighting of messages from the PostScript interpreter.
 144
 145 See documentation on font-lock for details."
 146   :group 'PostScript-interaction
 147   :type '(repeat (list :tag "Expression with one or more highlighters"
 148                        :value ("" (0 default nil t))
 149                        (regexp :tag "Expression")
 150                        (repeat :tag "Highlighters"
 151                                :inline regexp
 152                                (list :tag "Highlighter"
 153                                      (integer :tag "Subexp")
 154                                      face
 155                                      (boolean :tag "Override")
 156                                      (boolean :tag "Laxmatch" :value t))))))
 157
 158 (defcustom ps-run-x '("gs" "-r72" "-sPAPERSIZE=a4")
 159   "*Command as list to run PostScript with graphic display."
 160   :group 'PostScript-interaction
 161   :type '(repeat string))
 162
 163 (defcustom ps-run-dumb '("gs" "-dNODISPLAY")
 164   "*Command as list to run PostScript without graphic display."
 165   :group 'PostScript-interaction
 166   :type '(repeat string))
 167
 168 (defcustom ps-run-init nil
 169   "*String of commands to send to PostScript to start interactive.
 170
 171 Example: \"executive\"
 172
 173 You won't need to set this option for Ghostscript."
 174   :group 'PostScript-interaction
 175   :type '(choice (const nil) string))
 176
 177 (defcustom ps-run-error-line-numbers nil
 178   "*What values are used by the PostScript interpreter in error messages?"
 179   :group 'PostScript-interaction
 180   :type '(choice (const :tag "line numbers" t)
 181                  (const :tag "byte counts" nil)))
 182
 183 (defcustom ps-run-tmp-dir nil
 184   "*Name of directory to place temporary file.
 185 If nil, use `temporary-file-directory'."
 186   :group 'PostScript-interaction
 187   :type '(choice (const nil) directory))
 188
 189 \f
 190 ;; Constants used for font-lock.
 191
 192 ;; Only a small set of the PostScript operators is selected for fontification.
 193 ;; Fontification is meant to clarify the document structure and process flow,
 194 ;; fontifying all known PostScript operators would hinder that objective.
 195 (defconst ps-mode-operators
 196   (let ((ops '("clear" "mark" "cleartomark" "counttomark"
 197                "forall"
 198                "dict" "begin" "end" "def"
 199                "true" "false"
 200                "exec" "if" "ifelse" "for" "repeat" "loop" "exit"
 201                "stop" "stopped" "countexecstack" "execstack"
 202                "quit" "start"
 203                "save" "restore"
 204                "bind" "null"
 205                "gsave" "grestore" "grestoreall"
 206                "showpage")))
 207     (concat "\\<" (regexp-opt ops t) "\\>"))
 208   "Regexp of PostScript operators that will be fontified.")
 209
 210 ;; Level 1 font-lock:
 211 ;;  - Special comments (reference face)
 212 ;;  - Strings and other comments
 213 ;;  - Partial strings (warning face)
 214 ;;  - 8bit characters (warning face)
 215 ;; Multiline strings are not supported. Strings with nested brackets are.
 216 (defconst ps-mode-font-lock-keywords-1
 217   '(("\\`%!PS.*" . font-lock-reference-face)
 218     ("^%%BoundingBox:[ \t]+-?[0-9]+[ \t]+-?[0-9]+[ \t]+-?[0-9]+[ \t]+-?[0-9]+[ \t]*$"
 219      . font-lock-reference-face)
 220     (ps-mode-match-string-or-comment
 221      (1 font-lock-comment-face nil t)
 222      (2 font-lock-string-face nil t))
 223     ("([^()\n%]*\\|[^()\n]*)" . font-lock-warning-face)
 224     ("[\200-\377]+" (0 font-lock-warning-face prepend nil)))
 225   "Subdued level highlighting for PostScript mode.")
 226
 227 ;; Level 2 font-lock:
 228 ;;  - All from level 1
 229 ;;  - PostScript operators (keyword face)
 230 (defconst ps-mode-font-lock-keywords-2
 231   (append
 232    ps-mode-font-lock-keywords-1
 233    (list
 234     (cons
 235      ;; exclude names prepended by `/'
 236      (concat "\\(^\\|[^/\n]\\)" ps-mode-operators)
 237      '(2 font-lock-keyword-face))))
 238   "Medium level highlighting for PostScript mode.")
 239
 240 ;; Level 3 font-lock:
 241 ;;  - All from level 2
 242 ;;  - Immediately evaluated names: those starting with `//' (type face)
 243 ;;  - Names that look like they are used for the definition of:
 244 ;;     * a function
 245 ;;     * an array
 246 ;;     * a dictionary
 247 ;;     * a "global" variable
 248 ;;    (function name face)
 249 ;;  - Other names (variable name face)
 250 ;; The rules used to determine what names fit in the first category are:
 251 ;;  - Only names that are at the left margin, and one of these on the same line:
 252 ;;     * Nothing after the name except possibly one or more `[' or a comment
 253 ;;     * A `{' or `<<' or `[0-9]+ dict' following the name
 254 ;;     * A `def' somewhere in the same line
 255 ;; Names are fontified before PostScript operators, allowing the use of
 256 ;; a more simple (efficient) regexp than the one used in level 2.
 257 (defconst ps-mode-font-lock-keywords-3
 258   (append
 259    ps-mode-font-lock-keywords-1
 260    (list
 261     '("//\\w+" . font-lock-type-face)
 262     `(,(concat
 263         "^\\(/\\w+\\)\\>"
 264         "\\([[ \t]*\\(%.*\\)?\r?$"      ; Nothing but `[' or comment after the name.
 265         "\\|[ \t]*\\({\\|<<\\)"         ; `{' or `<<' following the name.
 266         "\\|[ \t]+[0-9]+[ \t]+dict\\>"  ; `[0-9]+ dict' following the name.
 267         "\\|.*\\<def\\>\\)")            ; `def' somewhere on the same line.
 268       . (1 font-lock-function-name-face))
 269     '("/\\w+" . font-lock-variable-name-face)
 270     (cons ps-mode-operators 'font-lock-keyword-face)))
 271   "High level highliting for PostScript mode.")
 272
 273 (defconst ps-mode-font-lock-keywords ps-mode-font-lock-keywords-1
 274   "Default expressions to highlight in PostScript mode.")
 275
 276 ;; Level 1 font-lock for ps-run-mode
 277 ;;  - prompt (function name face)
 278 (defconst ps-run-font-lock-keywords-1
 279   (unless (string= "" ps-run-prompt)
 280     (list (cons (if (= ?^ (string-to-char ps-run-prompt))
 281                     ps-run-prompt
 282                   (concat "^" ps-run-prompt))
 283                 'font-lock-function-name-face)))
 284   "Subdued level highlighting for PostScript run mode.")
 285
 286 (defconst ps-run-font-lock-keywords ps-run-font-lock-keywords-1
 287   "Default expressions to highlight in PostScript run mode.")
 288
 289 \f
 290 ;; Variables.
 291
 292 (defvar ps-mode-map nil
 293   "Local keymap to use in PostScript mode.")
 294
 295 (defvar ps-mode-syntax-table nil
 296   "Syntax table used while in PostScript mode.")
 297
 298 (defvar ps-run-mode-map nil
 299   "Local keymap to use in PostScript run mode.")
 300
 301 (defvar ps-mode-tmp-file nil
 302   "Name of temporary file, set by `ps-run'.")
 303
 304 (defvar ps-run-mark nil
 305   "Mark to start of region that was sent to PostScript interpreter.")
 306
 307 (defvar ps-run-parent nil
 308   "Parent window of interactive PostScript.")
 309
 310 \f
 311 ;; Menu
 312
 313 (defconst ps-mode-menu-main
 314   '("PostScript"
 315     ["EPSF Template, Sparse" ps-mode-epsf-sparse t]
 316     ["EPSF Template, Rich"   ps-mode-epsf-rich t]
 317     "---"
 318     ("Cookbook"
 319      ["RE" ps-mode-RE t]
 320      ["ISOLatin1Extended" ps-mode-latin-extended t]
 321      ["center" ps-mode-center t]
 322      ["right" ps-mode-right t]
 323      ["Heapsort" ps-mode-heapsort t])
 324     ("Fonts (1)"
 325      ["Times-Roman" (insert "/Times-Roman ") t]
 326      ["Times-Bold" (insert "/Times-Bold ") t]
 327      ["Times-Italic" (insert "/Times-Italic ") t]
 328      ["Times-BoldItalic" (insert "/Times-BoldItalic ") t]
 329      ["Helvetica" (insert "/Helvetica ") t]
 330      ["Helvetica-Bold" (insert "/Helvetica-Bold ") t]
 331      ["Helvetica-Oblique" (insert "/Helvetica-Oblique ") t]
 332      ["Helvetica-BoldOblique" (insert "/Helvetica-BoldOblique ") t]
 333      ["Courier" (insert "/Courier ") t]
 334      ["Courier-Bold" (insert "/Courier-Bold ") t]
 335      ["Courier-Oblique" (insert "/Courier-Oblique ") t]
 336      ["Courier-BoldOblique" (insert "/Courier-BoldOblique ") t]
 337      ["Symbol" (insert "/Symbol") t ])
 338     ("Fonts (2)"
 339      ["AvantGarde-Book" (insert "/AvantGarde-Book ") t]
 340      ["AvantGarde-Demi" (insert "/AvantGarde-Demi ") t]
 341      ["AvantGarde-BookOblique" (insert "/AvantGarde-BookOblique ") t]
 342      ["AvantGarde-DemiOblique" (insert "/AvantGarde-DemiOblique ") t]
 343      ["Bookman-Light" (insert "/Bookman-Light ") t]
 344      ["Bookman-Demi" (insert "/Bookman-Demi ") t]
 345      ["Bookman-LightItalic" (insert "/Bookman-LightItalic ") t]
 346      ["Bookman-DemiItalic" (insert "/Bookman-DemiItalic ") t]
 347      ["Helvetica-Narrow" (insert "/Helvetica-Narrow ") t]
 348      ["Helvetica-Narrow-Bold" (insert "/Helvetica-Narrow-Bold ") t]
 349      ["Helvetica-Narrow-Oblique" (insert "/Helvetica-Narrow-Oblique ") t]
 350      ["Helvetica-Narrow-BoldOblique" (insert "/Helvetica-Narrow-BoldOblique ") t]
 351      ["NewCenturySchlbk-Roman" (insert "/NewCenturySchlbk-Roman ") t]
 352      ["NewCenturySchlbk-Bold" (insert "/NewCenturySchlbk-Bold ") t]
 353      ["NewCenturySchlbk-Italic" (insert "/NewCenturySchlbk-Italic ") t]
 354      ["NewCenturySchlbk-BoldItalic" (insert "/NewCenturySchlbk-BoldItalic ") t]
 355      ["Palatino-Roman" (insert "/Palatino-Roman ") t]
 356      ["Palatino-Bold" (insert "/Palatino-Bold ") t]
 357      ["Palatino-Italic" (insert "/Palatino-Italic ") t]
 358      ["Palatino-BoldItalic" (insert "/Palatino-BoldItalic ") t]
 359      ["ZapfChancery-MediumItalic" (insert "/ZapfChancery-MediumItalic ") t]
 360      ["ZapfDingbats" (insert "/ZapfDingbats ") t])
 361     "---"
 362     ["Comment Out Region" ps-mode-comment-out-region (mark t)]
 363     ["Uncomment Region" ps-mode-uncomment-region (mark t)]
 364     "---"
 365     ["8-bit to Octal Buffer" ps-mode-octal-buffer t]
 366     ["8-bit to Octal Region" ps-mode-octal-region (mark t)]
 367     "---"
 368     ["Auto Indent" (setq ps-mode-auto-indent (not ps-mode-auto-indent))
 369      :style toggle :selected ps-mode-auto-indent]
 370     "---"
 371     ["Start PostScript"
 372      ps-run-start
 373      t]
 374     ["Quit PostScript" ps-run-quit (process-status "ps-run")]
 375     ["Kill PostScript" ps-run-kill (process-status "ps-run")]
 376     ["Send Buffer to Interpreter"
 377      ps-run-buffer
 378      (process-status "ps-run")]
 379     ["Send Region to Interpreter"
 380      ps-run-region
 381      (and (mark t) (process-status "ps-run"))]
 382     ["Send Newline to Interpreter"
 383      ps-mode-other-newline
 384      (process-status "ps-run")]
 385     ["View BoundingBox"
 386      ps-run-boundingbox
 387      (process-status "ps-run")]
 388     ["Clear/Reset PostScript Graphics"
 389      ps-run-clear
 390      (process-status "ps-run")]
 391     "---"
 392     ["Print Buffer as PostScript"
 393      ps-mode-print-buffer
 394      t]
 395     ["Print Region as PostScript"
 396      ps-mode-print-region
 397      (mark t)]
 398     "---"
 399     ["Customize for PostScript"
 400      (customize-group "PostScript")
 401      t]
 402     "---"
 403     ["Submit Bug Report"
 404      ps-mode-submit-bug-report
 405      t]))
 406
 407 \f
 408 ;; Mode maps for PostScript edit mode and PostScript interaction mode.
 409
 410 (unless ps-mode-map
 411   (setq ps-mode-map (make-sparse-keymap))
 412   (define-key ps-mode-map "\C-c\C-v" 'ps-run-boundingbox)
 413   (define-key ps-mode-map "\C-c\C-u" 'ps-mode-uncomment-region)
 414   (define-key ps-mode-map "\C-c\C-t" 'ps-mode-epsf-rich)
 415   (define-key ps-mode-map "\C-c\C-s" 'ps-run-start)
 416   (define-key ps-mode-map "\C-c\C-r" 'ps-run-region)
 417   (define-key ps-mode-map "\C-c\C-q" 'ps-run-quit)
 418   (define-key ps-mode-map "\C-c\C-p" 'ps-mode-print-buffer)
 419   (define-key ps-mode-map "\C-c\C-o" 'ps-mode-comment-out-region)
 420   (define-key ps-mode-map "\C-c\C-k" 'ps-run-kill)
 421   (define-key ps-mode-map "\C-c\C-j" 'ps-mode-other-newline)
 422   (define-key ps-mode-map "\C-c\C-l" 'ps-run-clear)
 423   (define-key ps-mode-map "\C-c\C-b" 'ps-run-buffer)
 424   (define-key ps-mode-map ">" 'ps-mode-r-gt)
 425   (define-key ps-mode-map "]" 'ps-mode-r-angle)
 426   (define-key ps-mode-map "}" 'ps-mode-r-brace)
 427   (define-key ps-mode-map "\177" 'ps-mode-backward-delete-char)
 428   (define-key ps-mode-map "\t" 'ps-mode-tabkey)
 429   (define-key ps-mode-map "\r" 'ps-mode-newline)
 430   (define-key ps-mode-map [return] 'ps-mode-newline)
 431   (easy-menu-define ps-mode-main ps-mode-map "PostScript" ps-mode-menu-main))
 432
 433 (unless ps-run-mode-map
 434   (setq ps-run-mode-map (make-sparse-keymap))
 435   (set-keymap-parent ps-run-mode-map comint-mode-map)
 436   (define-key ps-run-mode-map "\C-c\C-q" 'ps-run-quit)
 437   (define-key ps-run-mode-map "\C-c\C-k" 'ps-run-kill)
 438   (define-key ps-run-mode-map "\C-c\C-e" 'ps-run-goto-error)
 439   (define-key ps-run-mode-map [mouse-2] 'ps-run-mouse-goto-error))
 440
 441 \f
 442 ;; Syntax table.
 443
 444 (unless ps-mode-syntax-table
 445   (setq ps-mode-syntax-table (make-syntax-table))
 446
 447   (modify-syntax-entry ?\% "< " ps-mode-syntax-table)
 448   (modify-syntax-entry ?\n "> " ps-mode-syntax-table)
 449   (modify-syntax-entry ?\r "> " ps-mode-syntax-table)
 450   (modify-syntax-entry ?\f "> " ps-mode-syntax-table)
 451   (modify-syntax-entry ?\< "(>" ps-mode-syntax-table)
 452   (modify-syntax-entry ?\> ")<" ps-mode-syntax-table)
 453
 454   (modify-syntax-entry ?\! "w " ps-mode-syntax-table)
 455   (modify-syntax-entry ?\" "w " ps-mode-syntax-table)
 456   (modify-syntax-entry ?\# "w " ps-mode-syntax-table)
 457   (modify-syntax-entry ?\$ "w " ps-mode-syntax-table)
 458   (modify-syntax-entry ?\& "w " ps-mode-syntax-table)
 459   (modify-syntax-entry ?\' "w " ps-mode-syntax-table)
 460   (modify-syntax-entry ?\* "w " ps-mode-syntax-table)
 461   (modify-syntax-entry ?\+ "w " ps-mode-syntax-table)
 462   (modify-syntax-entry ?\, "w " ps-mode-syntax-table)
 463   (modify-syntax-entry ?\- "w " ps-mode-syntax-table)
 464   (modify-syntax-entry ?\. "w " ps-mode-syntax-table)
 465   (modify-syntax-entry ?\: "w " ps-mode-syntax-table)
 466   (modify-syntax-entry ?\; "w " ps-mode-syntax-table)
 467   (modify-syntax-entry ?\= "w " ps-mode-syntax-table)
 468   (modify-syntax-entry ?\? "w " ps-mode-syntax-table)
 469   (modify-syntax-entry ?\@ "w " ps-mode-syntax-table)
 470   (modify-syntax-entry ?\\ "w " ps-mode-syntax-table)
 471   (modify-syntax-entry ?^  "w " ps-mode-syntax-table) ; NOT: ?\^
 472   (modify-syntax-entry ?\_ "w " ps-mode-syntax-table)
 473   (modify-syntax-entry ?\` "w " ps-mode-syntax-table)
 474   (modify-syntax-entry ?\| "w " ps-mode-syntax-table)
 475   (modify-syntax-entry ?\~ "w " ps-mode-syntax-table)
 476
 477   (let ((i 128))
 478     (while (< i 256)
 479       (modify-syntax-entry i "w " ps-mode-syntax-table)
 480       (setq i (1+ i)))))
 481
 482 \f
 483
 484 (declare-function doc-view-minor-mode "doc-view")
 485
 486 ;; PostScript mode.
 487
 488 ;;;###autoload
 489 (define-derived-mode ps-mode fundamental-mode "PostScript"
 490   "Major mode for editing PostScript with GNU Emacs.
 491
 492 Entry to this mode calls `ps-mode-hook'.
 493
 494 The following variables hold user options, and can
 495 be set through the `customize' command:
 496
 497   `ps-mode-auto-indent'
 498   `ps-mode-tab'
 499   `ps-mode-paper-size'
 500   `ps-mode-print-function'
 501   `ps-run-prompt'
 502   `ps-run-font-lock-keywords-2'
 503   `ps-run-x'
 504   `ps-run-dumb'
 505   `ps-run-init'
 506   `ps-run-error-line-numbers'
 507   `ps-run-tmp-dir'
 508
 509 Type \\[describe-variable] for documentation on these options.
 510
 511
 512 \\{ps-mode-map}
 513
 514
 515 When starting an interactive PostScript process with \\[ps-run-start],
 516 a second window will be displayed, and `ps-run-mode-hook' will be called.
 517 The keymap for this second window is:
 518
 519 \\{ps-run-mode-map}
 520
 521
 522 When Ghostscript encounters an error it displays an error message
 523 with a file position. Clicking mouse-2 on this number will bring
 524 point to the corresponding spot in the PostScript window, if input
 525 to the interpreter was sent from that window.
 526 Typing \\<ps-run-mode-map>\\[ps-run-goto-error] when the cursor is at the number has the same effect."
 527   (set (make-local-variable 'font-lock-defaults)
 528        '((ps-mode-font-lock-keywords
 529           ps-mode-font-lock-keywords-1
 530           ps-mode-font-lock-keywords-2
 531           ps-mode-font-lock-keywords-3)
 532          t))
 533   (set (make-local-variable 'comment-start) "%")
 534   ;; NOTE: `\' has a special meaning in strings only
 535   (set (make-local-variable 'comment-start-skip) "%+[ \t]*")
 536   ;; enable doc-view-minor-mode => C-c C-c starts viewing the current ps file
 537   ;; with doc-view-mode.
 538   (doc-view-minor-mode 1))
 539
 540 (defun ps-mode-show-version ()
 541   "Show current version of PostScript mode."
 542   (interactive)
 543   (message " *** PostScript Mode (ps-mode) Version %s *** " ps-mode-version))
 544
 545 (defun ps-mode-submit-bug-report ()
 546   "Submit via mail a bug report on PostScript mode."
 547   (interactive)
 548   (when (y-or-n-p "Submit bug report on PostScript mode? ")
 549     (let ((reporter-prompt-for-summary-p nil)
 550           (reporter-dont-compact-list '(ps-mode-print-function
 551                                         ps-run-font-lock-keywords-2)))
 552       (reporter-submit-bug-report
 553        ps-mode-maintainer-address
 554        (format "ps-mode.el %s [%s]" ps-mode-version system-type)
 555        '(ps-mode-auto-indent
 556          ps-mode-tab
 557          ps-mode-paper-size
 558          ps-mode-print-function
 559          ps-run-prompt
 560          ps-run-font-lock-keywords-2
 561          ps-run-x
 562          ps-run-dumb
 563          ps-run-init
 564          ps-run-error-line-numbers
 565          ps-run-tmp-dir)))))
 566
 567 \f
 568 ;; Helper functions for font-lock.
 569
 570 ;; When this function is called, point is at an opening bracket.
 571 ;; This function should test if point is at the start of a string
 572 ;; with nested brackets.
 573 ;; If true:  move point to end of string
 574 ;;           set string to match data nr 2
 575 ;;           return new point
 576 ;; If false: return nil
 577 (defun ps-mode-looking-at-nested (limit)
 578   (let ((first (point))
 579         (level 1)
 580         pos)
 581     ;; Move past opening bracket.
 582     (forward-char 1)
 583     (setq pos (point))
 584     (while (and (> level 0) (< pos limit))
 585       ;; Search next bracket, stepping over escaped brackets.
 586       (if (not (looking-at "\\([^()\\\n]\\|\\\\.\\)*\\([()]\\)"))
 587           (setq level -1)
 588         (setq level (+ level (if (string= "(" (match-string 2)) 1 -1)))
 589         (goto-char (setq pos (match-end 0)))))
 590     (if (not (= level 0))
 591         nil
 592       ;; Found string with nested brackets, now set match data nr 2.
 593       (set-match-data (list first pos nil nil first pos))
 594       pos)))
 595
 596 ;; This function should search for a string or comment
 597 ;; If comment, return as match data nr 1
 598 ;; If string, return as match data nr 2
 599 (defun ps-mode-match-string-or-comment (limit)
 600   ;; Find the first potential match.
 601   (if (not (re-search-forward "[%(]" limit t))
 602       ;; Nothing found: return failure.
 603       nil
 604     (let ((end (match-end 0)))
 605       (goto-char (match-beginning 0))
 606       (cond ((looking-at "\\(%.*\\)\\|\\((\\([^()\\\n]\\|\\\\.\\)*)\\)")
 607              ;; It's a comment or string without nested, unescaped brackets.
 608              (goto-char (match-end 0))
 609              (point))
 610             ((ps-mode-looking-at-nested limit)
 611              ;; It's a string with nested brackets.
 612              (point))
 613             (t
 614              ;; Try next match.
 615              (goto-char end)
 616              (ps-mode-match-string-or-comment limit))))))
 617
 618 \f
 619 ;; Key-handlers.
 620
 621 (defun ps-mode-target-column ()
 622   "To what column should text on current line be indented?
 623
 624 Identation is increased if the last token on the current line
 625 defines the beginning of a group. These tokens are:  {  [  <<"
 626   (save-excursion
 627     (beginning-of-line)
 628     (if (looking-at "[ \t]*\\(}\\|\\]\\|>>\\)")
 629         (condition-case err
 630             (progn
 631               (goto-char (match-end 0))
 632               (backward-sexp 1)
 633               (beginning-of-line)
 634               (if (looking-at "[ \t]+")
 635                   (goto-char (match-end 0)))
 636               (current-column))
 637           (error
 638            (ding)
 639            (message "%s" (error-message-string err))
 640            0))
 641       (let (target)
 642         (if (not (re-search-backward "[^ \t\n\r\f][ \t\n\r\f]*\\=" nil t))
 643             0
 644           (goto-char (match-beginning 0))
 645           (beginning-of-line)
 646           (if (looking-at "[ \t]+")
 647               (goto-char (match-end 0)))
 648           (setq target (current-column))
 649           (end-of-line)
 650           (if (re-search-backward "\\({\\|\\[\\|<<\\)[ \t]*\\(%[^\n]*\\)?\\=" nil t)
 651               (setq target (+ target ps-mode-tab)))
 652           target)))))
 653
 654 (defun ps-mode-newline ()
 655   "Insert newline with proper indentation."
 656   (interactive)
 657   (delete-horizontal-space)
 658   (insert "\n")
 659   (if ps-mode-auto-indent
 660       (indent-to (ps-mode-target-column))))
 661
 662 (defun ps-mode-tabkey ()
 663   "Indent/reindent current line, or insert tab."
 664   (interactive)
 665   (let ((column (current-column))
 666         target)
 667     (if (or (not ps-mode-auto-indent)
 668             (< ps-mode-tab 1)
 669             (not (re-search-backward "^[ \t]*\\=" nil t)))
 670         (insert "\t")
 671       (setq target (ps-mode-target-column))
 672       (while (<= target column)
 673         (setq target (+ target ps-mode-tab)))
 674       (indent-line-to target))))
 675
 676 (defun ps-mode-backward-delete-char ()
 677   "Delete backward indentation, or delete backward character."
 678   (interactive)
 679   (let ((column (current-column))
 680         target)
 681     (if (or (not ps-mode-auto-indent)
 682             (< ps-mode-tab 1)
 683             (not (re-search-backward "^[ \t]+\\=" nil t)))
 684         (call-interactively 'delete-backward-char)
 685       (setq target (ps-mode-target-column))
 686       (while (> column target)
 687         (setq target (+ target ps-mode-tab)))
 688       (while (>= target column)
 689         (setq target (- target ps-mode-tab)))
 690       (if (< target 0)
 691           (setq target 0))
 692       (indent-line-to target))))
 693
 694 (defun ps-mode-r-brace ()
 695   "Insert `}' and perform balance."
 696   (interactive)
 697   (insert "}")
 698   (ps-mode-r-balance "}"))
 699
 700 (defun ps-mode-r-angle ()
 701   "Insert `]' and perform balance."
 702   (interactive)
 703   (insert "]")
 704   (ps-mode-r-balance "]"))
 705
 706 (defun ps-mode-r-gt ()
 707   "Insert `>' and perform balance."
 708   (interactive)
 709   (insert ">")
 710   (ps-mode-r-balance ">>"))
 711
 712 (defun ps-mode-r-balance (right)
 713   "Adjust indentification if point after RIGHT."
 714   (if ps-mode-auto-indent
 715       (save-excursion
 716         (when (re-search-backward (concat "^[ \t]*" (regexp-quote right) "\\=") nil t)
 717           (indent-line-to (ps-mode-target-column)))))
 718   (blink-matching-open))
 719
 720 (defun ps-mode-other-newline ()
 721   "Perform newline in `*ps-run*' buffer."
 722   (interactive)
 723   (ps-run-send-string ""))
 724
 725 \f
 726 ;; Print PostScript.
 727
 728 (defun ps-mode-print-buffer ()
 729   "Print buffer as PostScript."
 730   (interactive)
 731   (funcall ps-mode-print-function))
 732
 733 (defun ps-mode-print-region (begin end)
 734   "Print region as PostScript, adding minimal header and footer lines:
 735
 736 %!PS
 737 <region>
 738 showpage"
 739   (interactive "r")
 740   (let ((buf (current-buffer)))
 741     (with-temp-buffer
 742       (insert "%!PS\n")
 743       (insert-buffer-substring buf begin end)
 744       (insert "\nshowpage\n")
 745       (funcall ps-mode-print-function))))
 746
 747 \f
 748 ;; Comment Out / Uncomment.
 749
 750 (defun ps-mode-comment-out-region (begin end)
 751   "Comment out region."
 752   (interactive "r")
 753   (let ((endm (make-marker)))
 754     (set-marker endm end)
 755     (save-excursion
 756       (goto-char begin)
 757       (if (= (current-column) 0)
 758           (insert "%"))
 759       (while (and (= (forward-line) 0)
 760                   (< (point) (marker-position endm)))
 761         (insert "%")))
 762     (set-marker endm nil)))
 763
 764 (defun ps-mode-uncomment-region (begin end)
 765   "Uncomment region.
 766
 767 Only one `%' is removed, and it has to be in the first column."
 768   (interactive "r")
 769   (let ((endm (make-marker)))
 770     (set-marker endm end)
 771     (save-excursion
 772       (goto-char begin)
 773       (if (looking-at "^%")
 774           (delete-char 1))
 775       (while (and (= (forward-line) 0)
 776                   (< (point) (marker-position endm)))
 777         (if (looking-at "%")
 778             (delete-char 1))))
 779     (set-marker endm nil)))
 780
 781 \f
 782 ;; Convert 8-bit to octal codes.
 783
 784 (defun ps-mode-octal-buffer ()
 785   "Change 8-bit characters to octal codes in buffer."
 786   (interactive)
 787   (ps-mode-octal-region (point-min) (point-max)))
 788
 789 (defun ps-mode-octal-region (begin end)
 790   "Change 8-bit characters to octal codes in region."
 791   (interactive "r")
 792   (if buffer-read-only
 793       (progn
 794         (ding)
 795         (message "Buffer is read only"))
 796     (save-excursion
 797       (let (endm i)
 798         (setq endm (make-marker))
 799         (set-marker endm end)
 800         (goto-char begin)
 801         (setq i 0)
 802         (while (re-search-forward "[\200-\377]" (marker-position endm) t)
 803           (setq i (1+ i))
 804           (backward-char)
 805           (insert (format "\\%03o" (string-to-char (buffer-substring (point) (1+ (point))))))
 806           (delete-char 1))
 807         (message "%d change%s made" i (if (= i 1) "" "s"))
 808         (set-marker endm nil)))))
 809
 810 \f
 811 ;; Cookbook.
 812
 813 (defun ps-mode-center ()
 814   "Insert function /center."
 815   (interactive)
 816   (insert "
 817 /center {
 818     dup stringwidth
 819     exch 2 div neg
 820     exch 2 div neg
 821     rmoveto
 822 } bind def
 823 "))
 824
 825 (defun ps-mode-right ()
 826   "Insert function /right."
 827   (interactive)
 828   (insert "
 829 /right {
 830     dup stringwidth
 831     exch neg
 832     exch neg
 833     rmoveto
 834 } bind def
 835 "))
 836
 837 (defun ps-mode-RE ()
 838   "Insert function /RE."
 839   (interactive)
 840   (insert "
 841 % `new-font-name' `encoding-vector' `old-font-name' RE -
 842 /RE {
 843     findfont
 844     dup maxlength dict begin {
 845         1 index /FID ne { def } { pop pop } ifelse
 846     } forall
 847     /Encoding exch def
 848     dup /FontName exch def
 849     currentdict end definefont pop
 850 } bind def
 851 "))
 852
 853 (defun ps-mode-latin-extended ()
 854   "Insert array /ISOLatin1Extended.
 855
 856 This encoding vector contains all the entries from ISOLatin1Encoding
 857 plus the usually uncoded characters inserted on positions 1 through 28."
 858   (interactive)
 859   (insert "
 860 % ISOLatin1Encoding, extended with remaining uncoded glyphs
 861 /ISOLatin1Extended [
 862     /.notdef /Lslash /lslash /OE /oe /Scaron /scaron /Zcaron /zcaron
 863     /Ydieresis /trademark /bullet /dagger /daggerdbl /ellipsis /emdash
 864     /endash /fi /fl /florin /fraction /guilsinglleft /guilsinglright
 865     /perthousand /quotedblbase /quotedblleft /quotedblright
 866     /quotesinglbase /quotesingle /.notdef /.notdef /.notdef /space
 867     /exclam /quotedbl /numbersign /dollar /percent /ampersand
 868     /quoteright /parenleft /parenright /asterisk /plus /comma /minus
 869     /period /slash /zero /one /two /three /four /five /six /seven /eight
 870     /nine /colon /semicolon /less /equal /greater /question /at /A /B /C
 871     /D /E /F /G /H /I /J /K /L /M /N /O /P /Q /R /S /T /U /V /W /X /Y /Z
 872     /bracketleft /backslash /bracketright /asciicircum /underscore
 873     /quoteleft /a /b /c /d /e /f /g /h /i /j /k /l /m /n /o /p /q /r /s
 874     /t /u /v /w /x /y /z /braceleft /bar /braceright /asciitilde
 875     /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef
 876     /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef
 877     /.notdef /.notdef /.notdef /dotlessi /grave /acute /circumflex
 878     /tilde /macron /breve /dotaccent /dieresis /.notdef /ring /cedilla
 879     /.notdef /hungarumlaut /ogonek /caron /space /exclamdown /cent
 880     /sterling /currency /yen /brokenbar /section /dieresis /copyright
 881     /ordfeminine /guillemotleft /logicalnot /hyphen /registered /macron
 882     /degree /plusminus /twosuperior /threesuperior /acute /mu /paragraph
 883     /periodcentered /cedilla /onesuperior /ordmasculine /guillemotright
 884     /onequarter /onehalf /threequarters /questiondown /Agrave /Aacute
 885     /Acircumflex /Atilde /Adieresis /Aring /AE /Ccedilla /Egrave /Eacute
 886     /Ecircumflex /Edieresis /Igrave /Iacute /Icircumflex /Idieresis /Eth
 887     /Ntilde /Ograve /Oacute /Ocircumflex /Otilde /Odieresis /multiply
 888     /Oslash /Ugrave /Uacute /Ucircumflex /Udieresis /Yacute /Thorn
 889     /germandbls /agrave /aacute /acircumflex /atilde /adieresis /aring
 890     /ae /ccedilla /egrave /eacute /ecircumflex /edieresis /igrave
 891     /iacute /icircumflex /idieresis /eth /ntilde /ograve /oacute
 892     /ocircumflex /otilde /odieresis /divide /oslash /ugrave /uacute
 893     /ucircumflex /udieresis /yacute /thorn /ydieresis
 894 ] def
 895 "))
 896
 897 (defun ps-mode-heapsort ()
 898   "Insert function /Heapsort."
 899   (interactive)
 900   (insert "
 901 % `array-element' Heapsort-cvi-or-cvr-or-cvs `number-or-string'
 902 /Heapsort-cvi-or-cvr-or-cvs {
 903     % 0 get
 904 } bind def
 905 % `array' Heapsort `sorted-array'
 906 /Heapsort {
 907     dup length /hsR exch def
 908     /hsL hsR 2 idiv 1 add def
 909     {
 910         hsR 2 lt { exit } if
 911         hsL 1 gt {
 912             /hsL hsL 1 sub def
 913         } {
 914             /hsR hsR 1 sub def
 915             dup dup dup 0 get exch dup hsR get
 916             0 exch put
 917             hsR exch put
 918         } ifelse
 919         dup hsL 1 sub get /hsT exch def
 920         /hsJ hsL def
 921         {
 922             /hsS hsJ def
 923             /hsJ hsJ dup add def
 924             hsJ hsR gt { exit } if
 925             hsJ hsR lt {
 926                 dup dup hsJ 1 sub get Heapsort-cvi-or-cvr-or-cvs
 927                 exch hsJ get Heapsort-cvi-or-cvr-or-cvs
 928                 lt { /hsJ hsJ 1 add def } if
 929             } if
 930             dup hsJ 1 sub get Heapsort-cvi-or-cvr-or-cvs
 931             hsT Heapsort-cvi-or-cvr-or-cvs
 932             le { exit } if
 933             dup dup hsS 1 sub exch hsJ 1 sub get put
 934         } loop
 935         dup hsS 1 sub hsT put
 936     } loop
 937 } bind def
 938 "))
 939
 940 \f
 941 ;; EPSF document lay-out.
 942
 943 (defun ps-mode-epsf-sparse ()
 944   "Insert sparse EPSF template."
 945   (interactive)
 946   (goto-char (point-max))
 947   (unless (re-search-backward "%%EOF[ \t\n]*\\'" nil t)
 948     (goto-char (point-max))
 949     (insert "\n%%EOF\n"))
 950   (goto-char (point-max))
 951   (unless (re-search-backward "\\bshowpage[ \t\n]+%%EOF[ \t\n]*\\'" nil t)
 952     (re-search-backward "%%EOF")
 953     (insert "showpage\n"))
 954   (goto-char (point-max))
 955   (unless (re-search-backward "\\bend[ \t\n]+\\bshowpage[ \t\n]+%%EOF[ \t\n]*\\'" nil t)
 956     (re-search-backward "showpage")
 957     (insert "\nend\n"))
 958   (goto-char (point-min))
 959   (insert "%!PS-Adobe-3.0 EPSF-3.0\n%%BoundingBox: 0 0 ")
 960   (insert (format "%d %d\n\n"
 961                   (car ps-mode-paper-size)
 962                   (car (cdr ps-mode-paper-size))))
 963   (insert "64 dict begin\n\n"))
 964
 965 (defun ps-mode-epsf-rich ()
 966   "Insert rich EPSF template."
 967   (interactive)
 968   (ps-mode-epsf-sparse)
 969   (forward-line -3)
 970   (when buffer-file-name
 971     (insert "%%Title: " (file-name-nondirectory buffer-file-name) "\n"))
 972   (insert "%%Creator: " (user-full-name) "\n")
 973   (insert "%%CreationDate: " (current-time-string) "\n")
 974   (insert "%%EndComments\n")
 975   (forward-line 3))
 976
 977 \f
 978 ;; Interactive PostScript interpreter.
 979
 980 (define-derived-mode ps-run-mode comint-mode "Interactive PS"
 981   "Major mode in interactive PostScript window.
 982 This mode is invoked from `ps-mode' and should not be called directly."
 983   (set (make-local-variable 'font-lock-defaults)
 984        '((ps-run-font-lock-keywords
 985           ps-run-font-lock-keywords-1
 986           ps-run-font-lock-keywords-2)
 987          t))
 988   (setq mode-line-process '(":%s")))
 989
 990 (defun ps-run-running ()
 991   "Error if not in `ps-mode' or not running PostScript."
 992   (unless (derived-mode-p 'ps-mode)
 993     (error "This function can only be called from PostScript mode"))
 994   (unless (equal (process-status "ps-run") 'run)
 995     (error "No PostScript process running")))
 996
 997 (defun ps-run-start ()
 998   "Start interactive PostScript."
 999   (interactive)
1000   (let ((command (or (and window-system ps-run-x) ps-run-dumb))
1001         (init-file nil)
1002         (process-connection-type nil)
1003         (oldwin (selected-window)))
1004     (unless command
1005       (error "No command specified to run interactive PostScript"))
1006     (unless (and ps-run-mark (markerp ps-run-mark))
1007       (setq ps-run-mark (make-marker)))
1008     (when ps-run-init
1009       (setq init-file (ps-run-make-tmp-filename))
1010       (write-region (concat ps-run-init "\n") 0 init-file)
1011       (setq init-file (list init-file)))
1012     (pop-to-buffer "*ps-run*")
1013     (ps-run-mode)
1014     (when (process-status "ps-run")
1015       (delete-process "ps-run"))
1016     (erase-buffer)
1017     (setq command (append command init-file))
1018     (insert (mapconcat 'identity command " ") "\n")
1019     (apply 'make-comint "ps-run" (car command) nil (cdr command))
1020     (with-current-buffer "*ps-run*"
1021       (use-local-map ps-run-mode-map)
1022       (setq comint-prompt-regexp ps-run-prompt))
1023     (select-window oldwin)))
1024
1025 (defun ps-run-quit ()
1026   "Quit interactive PostScript."
1027   (interactive)
1028   (ps-run-send-string "quit")
1029   (ps-run-cleanup))
1030
1031 (defun ps-run-kill ()
1032   "Kill interactive PostScript."
1033   (interactive)
1034   (delete-process "ps-run")
1035   (ps-run-cleanup))
1036
1037 (defun ps-run-clear ()
1038   "Clear/reset PostScript graphics."
1039   (interactive)
1040   (ps-run-send-string "showpage")
1041   (sit-for 1)
1042   (ps-run-send-string ""))
1043
1044 (defun ps-run-buffer ()
1045   "Send buffer to PostScript interpreter."
1046   (interactive)
1047   (ps-run-region (point-min) (point-max)))
1048
1049 (defun ps-run-region (begin end)
1050   "Send region to PostScript interpreter."
1051   (interactive "r")
1052   (ps-run-running)
1053   (setq ps-run-parent (buffer-name))
1054   (let ((f (ps-run-make-tmp-filename)))
1055     (set-marker ps-run-mark begin)
1056     (write-region begin end f)
1057     (ps-run-send-string (format "(%s) run" f))))
1058
1059 (defun ps-run-boundingbox ()
1060   "View BoundingBox."
1061   (interactive)
1062   (ps-run-running)
1063   (let (x1 y1 x2 y2 f
1064            (buf (current-buffer)))
1065     (save-excursion
1066       (goto-char 1)
1067       (re-search-forward
1068        "^%%BoundingBox:[ \t]+\\(-?[0-9]+\\)[ \t]+\\(-?[0-9]+\\)[ \t]+\\(-?[0-9]+\\)[ \t]+\\(-?[0-9]+\\)")
1069       (setq x1 (match-string 1)
1070             y1 (match-string 2)
1071             x2 (match-string 3)
1072             y2 (match-string 4)))
1073     (unless (< (string-to-number x1) (string-to-number x2))
1074       (error "x1 (%s) should be less than x2 (%s)" x1 x2))
1075     (unless (< (string-to-number y1) (string-to-number y2))
1076       (error "y1 (%s) should be less than y2 (%s)" y1 y2))
1077     (setq f (ps-run-make-tmp-filename))
1078     (write-region
1079      (format
1080       "gsave
1081     initgraphics
1082     2 setlinewidth
1083     %s %s moveto
1084     %s %s lineto
1085     %s %s lineto
1086     %s %s lineto
1087     closepath
1088     gsave
1089         [ 4 20 ] 0 setdash
1090         1 0 0 setrgbcolor
1091         stroke
1092     grestore
1093     gsave
1094         [ 4 20 ] 8 setdash
1095         0 1 0 setrgbcolor
1096         stroke
1097     grestore
1098     [ 4 20 ] 16 setdash
1099     0 0 1 setrgbcolor
1100     stroke
1101 grestore
1102 " x1 y1 x2 y1 x2 y2 x1 y2)
1103      0
1104      f)
1105     (ps-run-send-string (format "(%s) run" f))
1106     (set-buffer buf)))
1107
1108 (defun ps-run-send-string (string)
1109   (let ((oldwin (selected-window)))
1110     (pop-to-buffer "*ps-run*")
1111     (comint-goto-process-mark)
1112     (insert string)
1113     (comint-send-input)
1114     (select-window oldwin)))
1115
1116 (defun ps-run-make-tmp-filename ()
1117   (unless ps-mode-tmp-file
1118     (setq ps-mode-tmp-file
1119           (let ((temporary-file-directory (or ps-run-tmp-dir
1120                                               temporary-file-directory)))
1121             (make-temp-file "ps-run-"))))
1122   ps-mode-tmp-file)
1123
1124 ;; Remove temporary file
1125 ;; This shouldn't fail twice, because it is called at kill-emacs
1126 (defun ps-run-cleanup ()
1127   (when ps-mode-tmp-file
1128     (let ((i ps-mode-tmp-file))
1129       (setq ps-mode-tmp-file nil)
1130       (when (file-exists-p i)
1131         (delete-file i)))))
1132
1133 (defun ps-run-mouse-goto-error (event)
1134   "Set point at mouse click, then call `ps-run-goto-error'."
1135   (interactive "e")
1136   (mouse-set-point event)
1137   (ps-run-goto-error))
1138
1139 (defun ps-run-goto-error ()
1140   "Jump to buffer position read as integer at point.
1141 Use line numbers if `ps-run-error-line-numbers' is not nil"
1142   (interactive)
1143   (let ((p (point)))
1144     (unless (looking-at "[0-9]")
1145       (goto-char (max 1 (1- (point)))))
1146     (when (looking-at "[0-9]")
1147       (forward-char 1)
1148       (forward-word -1)
1149       (when (looking-at "[0-9]+")
1150         (let (i)
1151           (setq
1152            i
1153            (string-to-number
1154             (buffer-substring (match-beginning 0) (match-end 0))))
1155           (goto-char p)
1156           (pop-to-buffer ps-run-parent)
1157           (if ps-run-error-line-numbers
1158               (progn
1159                 (goto-char (marker-position ps-run-mark))
1160                 (forward-line (1- i))
1161                 (end-of-line))
1162             (goto-char (+ i (marker-position ps-run-mark)))))))))
1163
1164 \f
1165 ;;
1166 (add-hook 'kill-emacs-hook 'ps-run-cleanup)
1167
1168 (provide 'ps-mode)
1169
1170 ;; arch-tag: dce13d2d-69fb-4ec4-9d5d-6dd29c3f0e6e
1171 ;;; ps-mode.el ends here