Annotation of gforth/gforth.el, revision 1.77
1.48 pazsan 1: ;;; gforth.el --- major mode for editing (G)Forth sources
1.31 anton 2:
1.76 anton 3: ;; Copyright (C) 1995,1996,1997,1998,2000,2001,2003,2004,2007,2008 Free Software Foundation, Inc.
1.31 anton 4:
5: ;; This file is part of Gforth.
1.1 anton 6:
1.17 anton 7: ;; GForth is distributed in the hope that it will be useful,
1.1 anton 8: ;; but WITHOUT ANY WARRANTY. No author or distributor
9: ;; accepts responsibility to anyone for the consequences of using it
10: ;; or for whether it serves any particular purpose or works at all,
11: ;; unless he says so in writing. Refer to the GNU Emacs General Public
12: ;; License for full details.
13:
14: ;; Everyone is granted permission to copy, modify and redistribute
15: ;; GNU Emacs, but only under the conditions described in the
16: ;; GNU Emacs General Public License. A copy of this license is
1.17 anton 17: ;; supposed to have been given to you along with Gforth so you
1.1 anton 18: ;; can know your rights and responsibilities. It should be in a
19: ;; file named COPYING. Among other things, the copyright notice
20: ;; and this notice must be preserved on all copies.
1.31 anton 21:
1.48 pazsan 22: ;; Author: Goran Rydqvist <gorry@ida.liu.se>
23: ;; Maintainer: David Kühling <dvdkhlng@gmx.de>
24: ;; Created: 16 July 88 by Goran Rydqvist
25: ;; Keywords: forth, gforth
26:
1.31 anton 27: ;; Changes by anton
28: ;; This is a variant of forth.el that came with TILE.
29: ;; I left most of this stuff untouched and made just a few changes for
30: ;; the things I use (mainly indentation and syntax tables).
31: ;; So there is still a lot of work to do to adapt this to gforth.
1.1 anton 32:
1.48 pazsan 33: ;; Changes by David
34: ;; Added a syntax-hilighting engine, rewrote auto-indentation engine.
35: ;; Added support for block files.
1.66 dvdkhlng 36: ;; Replaced forth-process code with comint-based implementation.
37:
38: ;; Tested with Emacs 19.34, 20.5, 21 and XEmacs 21
1.48 pazsan 39:
1.1 anton 40: ;;-------------------------------------------------------------------
41: ;; A Forth indentation, documentation search and interaction library
42: ;;-------------------------------------------------------------------
43: ;;
44: ;; Written by Goran Rydqvist, gorry@ida.liu.se, Summer 1988
45: ;; Started: 16 July 88
46: ;; Version: 2.10
47: ;; Last update: 5 December 1989 by Mikael Patel, mip@ida.liu.se
48: ;; Last update: 25 June 1990 by Goran Rydqvist, gorry@ida.liu.se
49: ;;
50: ;; Documentation: See forth-mode (^HF forth-mode)
51: ;;-------------------------------------------------------------------
52:
1.48 pazsan 53: ;;; Code:
54:
1.59 dvdkhlng 55: ;(setq debug-on-error t)
1.58 dvdkhlng 56:
1.55 dvdkhlng 57: ;; Code ripped from `version.el' for compatability with Emacs versions
58: ;; prior to 19.23.
1.58 dvdkhlng 59: (if (not (boundp 'emacs-major-version))
60: (defconst emacs-major-version
61: (progn (string-match "^[0-9]+" emacs-version)
1.75 pazsan 62: (string-to-number (match-string 0 emacs-version)))))
1.58 dvdkhlng 63:
1.73 anton 64: ;; Code ripped from `subr.el' for compatability with Emacs versions
65: ;; prior to 20.1
66: (eval-when-compile
1.58 dvdkhlng 67: (defun forth-emacs-older (major minor)
68: (or (< emacs-major-version major)
69: (and (= emacs-major-version major) (< emacs-minor-version minor))))
1.55 dvdkhlng 70:
1.58 dvdkhlng 71: (if (forth-emacs-older 20 1)
72: (progn
73: (defmacro when (cond &rest body)
74: "If COND yields non-nil, do BODY, else return nil."
75: (list 'if cond (cons 'progn body)))
76: (defmacro unless (cond &rest body)
77: "If COND yields nil, do BODY, else return nil."
78: (cons 'if (cons cond (cons nil body)))))))
79:
80: ;; `no-error' argument of require not supported in Emacs versions
81: ;; prior to 20.4 :-(
1.73 anton 82: (eval-and-compile
1.58 dvdkhlng 83: (defun forth-require (feature)
1.73 anton 84: (condition-case err (require feature) (error nil))))
1.58 dvdkhlng 85:
86: (require 'font-lock)
1.48 pazsan 87:
1.58 dvdkhlng 88: ;; define `font-lock-warning-face' in emacs-versions prior to 20.1
89: ;; (ripped from `font-lock.el')
90: (unless (boundp 'font-lock-warning-face)
91: (message "defining font-lock-warning-face")
92: (make-face 'font-lock-warning-face)
93: (defvar font-lock-warning-face 'font-lock-warning-face)
94: (set-face-foreground font-lock-warning-face "red")
95: (make-face-bold font-lock-warning-face))
96:
1.59 dvdkhlng 97: ;; define `font-lock-constant-face' in XEmacs (just copy
98: ;; `font-lock-preprocessor-face')
99: (unless (boundp 'font-lock-constant-face)
1.61 dvdkhlng 100: (copy-face font-lock-preprocessor-face 'font-lock-constant-face))
101:
1.59 dvdkhlng 102:
1.58 dvdkhlng 103: ;; define `regexp-opt' in emacs versions prior to 20.1
104: ;; (this implementation is extremely inefficient, though)
1.59 dvdkhlng 105: (eval-and-compile (forth-require 'regexp-opt))
106: (unless (memq 'regexp-opt features)
1.58 dvdkhlng 107: (message (concat
108: "Warning: your Emacs version doesn't support `regexp-opt'. "
109: "Hilighting will be slow."))
110: (defun regexp-opt (STRINGS &optional PAREN)
111: (let ((open (if PAREN "\\(" "")) (close (if PAREN "\\)" "")))
112: (concat open (mapconcat 'regexp-quote STRINGS "\\|") close)))
113: (defun regexp-opt-depth (re)
114: (if (string= (substring re 0 2) "\\(") 1 0)))
115:
1.57 dvdkhlng 116: ; todo:
117: ;
118:
1.69 dvdkhlng 119: ; screen-height existiert nicht in XEmacs, frame-height ersetzen?
120: ;
121:
1.57 dvdkhlng 122: ; Wörter ordentlich hilighten, die nicht auf Whitespace beginnen ( ..)IF
123: ; -- mit aktueller Konzeption nicht möglich??
124: ;
125: ; Konfiguration über customization groups
126: ;
127: ; Bereich nur auf Wortanfang/ende ausweiten, wenn Anfang bzw Ende in einem
128: ; Wort liegen (?) -- speed!
129: ;
130: ; 'forth-word' property muss eindeutig sein!
131: ;
132: ; Forth-Menu
133: ;
134: ; Interface zu GForth Prozessen (Patches von Michael Scholz)
135: ;
136: ; Byte-compile-Code rausschmeißen, Compilieren im Makefile über Emacs
137: ; batch-Modus
138: ;
139: ; forth-help Kram rausschmeißen
140: ;
141: ; XEmacs Kompatibilität? imenu/speedbar -> fume?
142: ;
143: ; Folding neuschreiben (neue Parser-Informationen benutzen)
144:
1.62 dvdkhlng 145: ;;; Motion-hooking (dk)
146: ;;;
147: (defun forth-idle-function ()
148: "Function that is called when Emacs is idle to detect cursor motion
149: in forth-block-mode buffers (which is mainly used for screen number
150: display in). Currently ignores forth-mode buffers but that may change
151: in the future."
152: (if (eq major-mode 'forth-block-mode)
153: (forth-check-motion)))
154:
155: (defvar forth-idle-function-timer nil
156: "Timer that runs `forth-idle-function' or nil if no timer installed.")
157:
158: (defun forth-install-motion-hook ()
159: "Install the motion-hooking mechanism. Currently uses idle timers
160: but might be transparently changed in the future."
161: (unless forth-idle-function-timer
162: ;; install idle function only once (first time forth-mode is used)
163: (setq forth-idle-function-timer
164: (run-with-idle-timer .05 t 'forth-idle-function))))
165:
166: (defvar forth-was-point nil)
167:
168: (defun forth-check-motion ()
169: "Run `forth-motion-hooks', if `point' changed since last call. This
170: used to be called via `post-command-hook' but uses idle timers now as
171: users complaint about lagging performance."
172: (when (or (eq forth-was-point nil) (/= forth-was-point (point)))
173: (setq forth-was-point (point))
174: (run-hooks 'forth-motion-hooks)))
175:
176:
177: ;;; Hilighting and indentation engine (dk)
1.48 pazsan 178: ;;;
1.55 dvdkhlng 179: (defvar forth-disable-parser nil
180: "*Non-nil means to disable on-the-fly parsing of Forth-code.
181:
182: This will disable hilighting of forth-mode buffers and will decrease
183: the smartness of the indentation engine. Only set it to non-nil, if
184: your computer is very slow. To disable hilighting, set
185: `forth-hilight-level' to zero.")
186:
187: (defvar forth-jit-parser nil
188: "*Non-nil means to parse Forth-code just-in-time.
189:
190: This eliminates the need for initially parsing forth-mode buffers and
191: thus speeds up loading of Forth files. That feature is only available
192: in Emacs21 (and newer versions).")
193:
1.48 pazsan 194: (defvar forth-words nil
195: "List of words for hilighting and recognition of parsed text areas.
1.55 dvdkhlng 196:
197: Hilighting of object-oriented Forth code is achieved, by appending either
198: `forth-objects-words' or `forth-oof-words' to the list, depending on the values of `forth-use-objects' or `forth-use-oof'.
199:
200: After `forth-words' changed, `forth-compile-words' must be called to
201: make the changes take effect.
1.48 pazsan 202:
203: Each item of `forth-words' has the form
204: (MATCHER TYPE HILIGHT . &optional PARSED-TEXT ...)
205:
206: MATCHER is either a list of strings to match, or a REGEXP.
207: If it's a REGEXP, it should not be surrounded by '\\<' or '\\>', since
208: that'll be done automatically by the search routines.
209:
210: TYPE should be one of 'definiton-starter', 'definition-ender', 'compile-only',
211: 'immediate' or 'non-immediate'. Those information are required to determine
212: whether a word actually parses (and whether that parsed text needs to be
213: hilighted).
214:
215: HILIGHT is a cons cell of the form (FACE . MINIMUM-LEVEL)
216: Where MINIMUM-LEVEL specifies the minimum value of `forth-hilight-level',
217: that's required for matching text to be hilighted.
218:
219: PARSED-TEXT specifies whether and how a word parses following text. You can
220: specify as many subsequent PARSED-TEXT as you wish, but that shouldn't be
221: necessary very often. It has the following form:
222: (DELIM-REGEXP SKIP-LEADING-FLAG PARSED-TYPE HILIGHT)
223:
224: DELIM-REGEXP is a regular expression that should match strings of length 1,
225: which are delimiters for the parsed text.
226:
227: A non-nil value for PARSE-LEADING-FLAG means, that leading delimiter strings
228: before parsed text should be skipped. This is the parsing behaviour of the
229: Forth word WORD. Set it to t for name-parsing words, nil for comments and
230: strings.
231:
232: PARSED-TYPE specifies what kind of text is parsed. It should be on of 'name',
233: 'string' or 'comment'.")
234: (setq forth-words
235: '(
236: (("[") definition-ender (font-lock-keyword-face . 1))
237: (("]" "]l") definition-starter (font-lock-keyword-face . 1))
238: ((":") definition-starter (font-lock-keyword-face . 1)
239: "[ \t\n]" t name (font-lock-function-name-face . 3))
240: (("immediate" "compile-only" "restrict")
241: immediate (font-lock-keyword-face . 1))
242: (("does>") compile-only (font-lock-keyword-face . 1))
243: ((":noname") definition-starter (font-lock-keyword-face . 1))
244: ((";" ";code") definition-ender (font-lock-keyword-face . 1))
245: (("include" "require" "needs" "use")
246: non-immediate (font-lock-keyword-face . 1)
247: "[\n\t ]" t string (font-lock-string-face . 1))
248: (("included" "required" "thru" "load")
249: non-immediate (font-lock-keyword-face . 1))
1.77 ! dvdkhlng 250: (("code" "abi-code")
! 251: non-immediate (font-lock-keyword-face . 1)
! 252: "[ \t\n]" t name (font-lock-function-name-face . 3))
! 253: (("end-code")
! 254: non-immediate (font-lock-keyword-face . 1))
1.48 pazsan 255: (("[char]") compile-only (font-lock-keyword-face . 1)
256: "[ \t\n]" t string (font-lock-string-face . 1))
257: (("char") non-immediate (font-lock-keyword-face . 1)
258: "[ \t\n]" t string (font-lock-string-face . 1))
259: (("s\"" "c\"") immediate (font-lock-string-face . 1)
260: "[\"\n]" nil string (font-lock-string-face . 1))
261: ((".\"") compile-only (font-lock-string-face . 1)
262: "[\"\n]" nil string (font-lock-string-face . 1))
263: (("abort\"") compile-only (font-lock-keyword-face . 1)
264: "[\"\n]" nil string (font-lock-string-face . 1))
265: (("{") compile-only (font-lock-variable-name-face . 1)
266: "[\n}]" nil name (font-lock-variable-name-face . 1))
267: ((".(" "(") immediate (font-lock-comment-face . 1)
268: ")" nil comment (font-lock-comment-face . 1))
269: (("\\" "\\G") immediate (font-lock-comment-face . 1)
270: "[\n]" nil comment (font-lock-comment-face . 1))
271:
272: (("[if]" "[?do]" "[do]" "[for]" "[begin]"
273: "[endif]" "[then]" "[loop]" "[+loop]" "[next]" "[until]" "[repeat]"
274: "[again]" "[while]" "[else]")
275: immediate (font-lock-keyword-face . 2))
276: (("[ifdef]" "[ifundef]") immediate (font-lock-keyword-face . 2)
277: "[ \t\n]" t name (font-lock-function-name-face . 3))
278: (("if" "begin" "ahead" "do" "?do" "+do" "u+do" "-do" "u-do" "for"
1.60 anton 279: "case" "of" "?dup-if" "?dup-0=-if" "then" "endif" "until"
1.64 pazsan 280: "repeat" "again" "leave" "?leave"
1.48 pazsan 281: "loop" "+loop" "-loop" "next" "endcase" "endof" "else" "while" "try"
1.72 anton 282: "recover" "endtry" "iferror" "restore" "endtry-iferror"
283: "assert(" "assert0(" "assert1(" "assert2("
1.48 pazsan 284: "assert3(" ")" "<interpretation" "<compilation" "interpretation>"
285: "compilation>")
286: compile-only (font-lock-keyword-face . 2))
287:
288: (("true" "false" "c/l" "bl" "cell" "pi" "w/o" "r/o" "r/w")
289: non-immediate (font-lock-constant-face . 2))
1.56 dvdkhlng 290: (("~~" "break:" "dbg") compile-only (font-lock-warning-face . 2))
1.55 dvdkhlng 291: (("break\"") compile-only (font-lock-warning-face . 1)
292: "[\"\n]" nil string (font-lock-string-face . 1))
1.48 pazsan 293: (("postpone" "[is]" "defers" "[']" "[compile]")
294: compile-only (font-lock-keyword-face . 2)
295: "[ \t\n]" t name (font-lock-function-name-face . 3))
296: (("is" "what's") immediate (font-lock-keyword-face . 2)
297: "[ \t\n]" t name (font-lock-function-name-face . 3))
1.56 dvdkhlng 298: (("<is>" "'" "see") non-immediate (font-lock-keyword-face . 2)
1.48 pazsan 299: "[ \t\n]" t name (font-lock-function-name-face . 3))
300: (("[to]") compile-only (font-lock-keyword-face . 2)
301: "[ \t\n]" t name (font-lock-variable-name-face . 3))
302: (("to") immediate (font-lock-keyword-face . 2)
303: "[ \t\n]" t name (font-lock-variable-name-face . 3))
304: (("<to>") non-immediate (font-lock-keyword-face . 2)
305: "[ \t\n]" t name (font-lock-variable-name-face . 3))
306:
307: (("create" "variable" "constant" "2variable" "2constant" "fvariable"
308: "fconstant" "value" "field" "user" "vocabulary"
309: "create-interpret/compile")
310: non-immediate (font-lock-type-face . 2)
311: "[ \t\n]" t name (font-lock-variable-name-face . 3))
1.54 dvdkhlng 312: ("\\S-+%" non-immediate (font-lock-type-face . 2))
1.48 pazsan 313: (("defer" "alias" "create-interpret/compile:")
314: non-immediate (font-lock-type-face . 1)
315: "[ \t\n]" t name (font-lock-function-name-face . 3))
316: (("end-struct") non-immediate (font-lock-keyword-face . 2)
317: "[ \t\n]" t name (font-lock-type-face . 3))
318: (("struct") non-immediate (font-lock-keyword-face . 2))
319: ("-?[0-9]+\\(\\.[0-9]*e\\(-?[0-9]+\\)?\\|\\.?[0-9a-f]*\\)"
320: immediate (font-lock-constant-face . 3))
1.77 ! dvdkhlng 321: ("-?\\([&#][0-9]+\\|\\(0x\\|\\$\\)[0-9a-f]+\\|%[01]+\\)"
! 322: immediate (font-lock-constant-face . 3))
1.48 pazsan 323: ))
324:
1.51 dvdkhlng 325: (defvar forth-use-objects nil
326: "*Non-nil makes forth-mode also hilight words from the \"Objects\" package.")
1.57 dvdkhlng 327: (defvar forth-objects-words
328: '(((":m") definition-starter (font-lock-keyword-face . 1)
329: "[ \t\n]" t name (font-lock-function-name-face . 3))
330: (("m:") definition-starter (font-lock-keyword-face . 1))
331: ((";m") definition-ender (font-lock-keyword-face . 1))
332: (("[current]" "[parent]") compile-only (font-lock-keyword-face . 1)
333: "[ \t\n]" t name (font-lock-function-name-face . 3))
334: (("current" "overrides") non-immediate (font-lock-keyword-face . 2)
335: "[ \t\n]" t name (font-lock-function-name-face . 3))
336: (("[to-inst]") compile-only (font-lock-keyword-face . 2)
337: "[ \t\n]" t name (font-lock-variable-name-face . 3))
338: (("[bind]") compile-only (font-lock-keyword-face . 2)
339: "[ \t\n]" t name (font-lock-type-face . 3)
340: "[ \t\n]" t name (font-lock-function-name-face . 3))
341: (("bind") non-immediate (font-lock-keyword-face . 2)
342: "[ \t\n]" t name (font-lock-type-face . 3)
343: "[ \t\n]" t name (font-lock-function-name-face . 3))
344: (("inst-var" "inst-value") non-immediate (font-lock-type-face . 2)
345: "[ \t\n]" t name (font-lock-variable-name-face . 3))
346: (("method" "selector")
347: non-immediate (font-lock-type-face . 1)
348: "[ \t\n]" t name (font-lock-function-name-face . 3))
349: (("end-class" "end-interface")
350: non-immediate (font-lock-keyword-face . 2)
351: "[ \t\n]" t name (font-lock-type-face . 3))
352: (("public" "protected" "class" "exitm" "implementation" "interface"
353: "methods" "end-methods" "this")
354: non-immediate (font-lock-keyword-face . 2))
355: (("object") non-immediate (font-lock-type-face . 2)))
1.51 dvdkhlng 356: "Hilighting description for words of the \"Objects\" package")
1.57 dvdkhlng 357:
1.48 pazsan 358:
1.51 dvdkhlng 359: (defvar forth-use-oof nil
360: "*Non-nil makes forth-mode also hilight words from the \"OOF\" package.")
1.57 dvdkhlng 361: (defvar forth-oof-words
362: '((("class") non-immediate (font-lock-keyword-face . 2)
363: "[ \t\n]" t name (font-lock-type-face . 3))
364: (("var") non-immediate (font-lock-type-face . 2)
365: "[ \t\n]" t name (font-lock-variable-name-face . 3))
366: (("method" "early") non-immediate (font-lock-type-face . 2)
367: "[ \t\n]" t name (font-lock-function-name-face . 3))
368: (("::" "super" "bind" "bound" "link")
369: immediate (font-lock-keyword-face . 2)
370: "[ \t\n]" t name (font-lock-function-name-face . 3))
371: (("ptr" "asptr" "[]")
372: immediate (font-lock-keyword-face . 2)
373: "[ \t\n]" t name (font-lock-variable-name-face . 3))
374: (("class;" "how:" "self" "new" "new[]" "definitions" "class?" "with"
375: "endwith")
376: non-immediate (font-lock-keyword-face . 2))
377: (("object") non-immediate (font-lock-type-face . 2)))
1.51 dvdkhlng 378: "Hilighting description for words of the \"OOF\" package")
1.48 pazsan 379:
1.49 dvdkhlng 380: (defvar forth-local-words nil
381: "List of Forth words to prepend to `forth-words'. Should be set by a
1.51 dvdkhlng 382: forth source, using a local variables list at the end of the file
383: (\"Local Variables: ... forth-local-words: ... End:\" construct).")
384:
385: (defvar forth-custom-words nil
386: "List of Forth words to prepend to `forth-words'. Should be set in your
387: .emacs.")
1.49 dvdkhlng 388:
1.48 pazsan 389: (defvar forth-hilight-level 3 "*Level of hilighting of Forth code.")
1.51 dvdkhlng 390:
1.48 pazsan 391: (defvar forth-compiled-words nil "Compiled representation of `forth-words'.")
392:
1.57 dvdkhlng 393: (defvar forth-indent-words nil
394: "List of words that have indentation behaviour.
395: Each element of `forth-indent-words' should have the form
396: (MATCHER INDENT1 INDENT2 &optional TYPE)
397:
398: MATCHER is either a list of strings to match, or a REGEXP.
399: If it's a REGEXP, it should not be surrounded by `\\<` or `\\>`, since
400: that'll be done automatically by the search routines.
401:
402: TYPE might be omitted. If it's specified, the only allowed value is
403: currently the symbol `non-immediate', meaning that the word will not
404: have any effect on indentation inside definitions. (:NONAME is a good
405: example for this kind of word).
406:
1.63 anton 407: INDENT1 specifies how to indent a word that's located at the beginning
408: of a line, following any number of whitespaces.
1.57 dvdkhlng 409:
1.63 anton 410: INDENT2 specifies how to indent words that are not located at the
411: beginning of a line.
1.57 dvdkhlng 412:
413: INDENT1 and INDENT2 are indentation specifications of the form
414: (SELF-INDENT . NEXT-INDENT), where SELF-INDENT is a numerical value,
415: specifying how the matching line and all following lines are to be
416: indented, relative to previous lines. NEXT-INDENT specifies how to indent
417: following lines, relative to the matching line.
418:
419: Even values of SELF-INDENT and NEXT-INDENT correspond to multiples of
420: `forth-indent-level'. Odd values get an additional
421: `forth-minor-indent-level' added/substracted. Eg a value of -2 indents
422: 1 * forth-indent-level to the left, wheras 3 indents
423: 1 * forth-indent-level + forth-minor-indent-level columns to the right.")
424:
425: (setq forth-indent-words
426: '((("if" "begin" "do" "?do" "+do" "-do" "u+do"
1.72 anton 427: "u-do" "?dup-if" "?dup-0=-if" "case" "of" "try" "iferror"
1.57 dvdkhlng 428: "[if]" "[ifdef]" "[ifundef]" "[begin]" "[for]" "[do]" "[?do]")
429: (0 . 2) (0 . 2))
1.77 ! dvdkhlng 430: ((":" ":noname" "code" "abi-code" "struct" "m:" ":m" "class"
! 431: "interface")
1.57 dvdkhlng 432: (0 . 2) (0 . 2) non-immediate)
433: ("\\S-+%$" (0 . 2) (0 . 0) non-immediate)
434: ((";" ";m") (-2 . 0) (0 . -2))
1.63 anton 435: (("again" "then" "endif" "endtry" "endcase" "endof"
1.57 dvdkhlng 436: "[then]" "[endif]" "[loop]" "[+loop]" "[next]"
1.63 anton 437: "[until]" "[again]" "loop")
1.57 dvdkhlng 438: (-2 . 0) (0 . -2))
439: (("end-code" "end-class" "end-interface" "end-class-noname"
440: "end-interface-noname" "end-struct" "class;")
441: (-2 . 0) (0 . -2) non-immediate)
442: (("protected" "public" "how:") (-1 . 1) (0 . 0) non-immediate)
443: (("+loop" "-loop" "until") (-2 . 0) (-2 . 0))
1.72 anton 444: (("else" "recover" "restore" "endtry-iferror" "[else]")
445: (-2 . 2) (0 . 0))
1.63 anton 446: (("does>") (-1 . 1) (0 . 0))
447: (("while" "[while]") (-2 . 4) (0 . 2))
1.70 dvdkhlng 448: (("repeat" "[repeat]") (-4 . 0) (0 . -4))))
1.57 dvdkhlng 449:
450: (defvar forth-local-indent-words nil
451: "List of Forth words to prepend to `forth-indent-words', when a forth-mode
452: buffer is created. Should be set by a Forth source, using a local variables
453: list at the end of the file (\"Local Variables: ... forth-local-words: ...
454: End:\" construct).")
1.51 dvdkhlng 455:
1.57 dvdkhlng 456: (defvar forth-custom-indent-words nil
457: "List of Forth words to prepend to `forth-indent-words'. Should be set in
458: your .emacs.")
1.48 pazsan 459:
1.57 dvdkhlng 460: (defvar forth-indent-level 4
461: "*Indentation of Forth statements.")
462: (defvar forth-minor-indent-level 2
463: "*Minor indentation of Forth statements.")
464: (defvar forth-compiled-indent-words nil)
1.48 pazsan 465:
1.55 dvdkhlng 466: ;(setq debug-on-error t)
1.48 pazsan 467:
1.50 dvdkhlng 468: ;; Filter list by predicate. This is a somewhat standard function for
1.48 pazsan 469: ;; functional programming languages. So why isn't it already implemented
470: ;; in Lisp??
1.50 dvdkhlng 471: (defun forth-filter (predicate list)
1.48 pazsan 472: (let ((filtered nil))
1.75 pazsan 473: (dolist (item list)
1.50 dvdkhlng 474: (when (funcall predicate item)
1.48 pazsan 475: (if filtered
476: (nconc filtered (list item))
1.75 pazsan 477: (setq filtered (cons item nil)))))
1.48 pazsan 478: filtered))
479:
480: ;; Helper function for `forth-compile-word': return whether word has to be
481: ;; added to the compiled word list, for syntactic parsing and hilighting.
482: (defun forth-words-filter (word)
483: (let* ((hilight (nth 2 word))
484: (level (cdr hilight))
485: (parsing-flag (nth 3 word)))
486: (or parsing-flag
487: (<= level forth-hilight-level))))
488:
489: ;; Helper function for `forth-compile-word': translate one entry from
490: ;; `forth-words' into the form (regexp regexp-depth word-description)
491: (defun forth-compile-words-mapper (word)
1.59 dvdkhlng 492: ;; warning: we cannot rely on regexp-opt's PAREN argument, since
493: ;; XEmacs will use shy parens by default :-(
1.48 pazsan 494: (let* ((matcher (car word))
1.59 dvdkhlng 495: (regexp
496: (concat "\\(" (cond ((stringp matcher) matcher)
497: ((listp matcher) (regexp-opt matcher))
1.75 pazsan 498: (t (error "Invalid matcher")))
1.59 dvdkhlng 499: "\\)"))
1.48 pazsan 500: (depth (regexp-opt-depth regexp))
501: (description (cdr word)))
502: (list regexp depth description)))
503:
504: ;; Read `words' and create a compiled representation suitable for efficient
505: ;; parsing of the form
506: ;; (regexp (subexp-count word-description) (subexp-count2 word-description2)
507: ;; ...)
1.49 dvdkhlng 508: (defun forth-compile-wordlist (words)
1.48 pazsan 509: (let* ((mapped (mapcar 'forth-compile-words-mapper words))
510: (regexp (concat "\\<\\("
511: (mapconcat 'car mapped "\\|")
512: "\\)\\>"))
513: (sub-count 2)
514: (sub-list (mapcar
515: (lambda (i)
516: (let ((sub (cons sub-count (nth 2 i))))
517: (setq sub-count (+ sub-count (nth 1 i)))
518: sub
519: ))
520: mapped)))
521: (let ((result (cons regexp sub-list)))
522: (byte-compile 'result)
523: result)))
524:
1.49 dvdkhlng 525: (defun forth-compile-words ()
526: "Compile the the words from `forth-words' and `forth-indent-words' into
527: the format that's later used for doing the actual hilighting/indentation.
1.51 dvdkhlng 528: Store the resulting compiled wordlists in `forth-compiled-words' and
1.49 dvdkhlng 529: `forth-compiled-indent-words', respective"
530: (setq forth-compiled-words
531: (forth-compile-wordlist
532: (forth-filter 'forth-words-filter forth-words)))
533: (setq forth-compiled-indent-words
534: (forth-compile-wordlist forth-indent-words)))
535:
536: (defun forth-hack-local-variables ()
1.51 dvdkhlng 537: "Parse and bind local variables, set in the contents of the current
538: forth-mode buffer. Prepend `forth-local-words' to `forth-words' and
539: `forth-local-indent-words' to `forth-indent-words'."
1.49 dvdkhlng 540: (hack-local-variables)
541: (setq forth-words (append forth-local-words forth-words))
542: (setq forth-indent-words (append forth-local-indent-words
543: forth-indent-words)))
544:
1.51 dvdkhlng 545: (defun forth-customize-words ()
546: "Add the words from `forth-custom-words' and `forth-custom-indent-words'
547: to `forth-words' and `forth-indent-words', respective. Add
548: `forth-objects-words' and/or `forth-oof-words' to `forth-words', if
549: `forth-use-objects' and/or `forth-use-oof', respective is set."
550: (setq forth-words (append forth-custom-words forth-words
551: (if forth-use-oof forth-oof-words nil)
552: (if forth-use-objects forth-objects-words nil)))
553: (setq forth-indent-words (append
554: forth-custom-indent-words forth-indent-words)))
555:
556:
557:
1.48 pazsan 558: ;; get location of first character of previous forth word that's got
559: ;; properties
560: (defun forth-previous-start (pos)
561: (let* ((word (get-text-property pos 'forth-word))
562: (prev (previous-single-property-change
563: (min (point-max) (1+ pos)) 'forth-word
564: (current-buffer) (point-min))))
565: (if (or (= (point-min) prev) word) prev
566: (if (get-text-property (1- prev) 'forth-word)
567: (previous-single-property-change
568: prev 'forth-word (current-buffer) (point-min))
569: (point-min)))))
570:
571: ;; Get location of the last character of the current/next forth word that's
572: ;; got properties, text that's parsed by the word is considered as parts of
573: ;; the word.
574: (defun forth-next-end (pos)
575: (let* ((word (get-text-property pos 'forth-word))
576: (next (next-single-property-change pos 'forth-word
577: (current-buffer) (point-max))))
578: (if word next
579: (if (get-text-property next 'forth-word)
580: (next-single-property-change
581: next 'forth-word (current-buffer) (point-max))
582: (point-max)))))
583:
584: (defun forth-next-whitespace (pos)
585: (save-excursion
586: (goto-char pos)
587: (skip-syntax-forward "-" (point-max))
588: (point)))
589: (defun forth-previous-word (pos)
590: (save-excursion
591: (goto-char pos)
592: (re-search-backward "\\<" pos (point-min) 1)
593: (point)))
594:
595: ;; Delete all properties, used by Forth mode, from `from' to `to'.
596: (defun forth-delete-properties (from to)
597: (remove-text-properties
1.55 dvdkhlng 598: from to '(face nil fontified nil
599: forth-parsed nil forth-word nil forth-state nil)))
1.48 pazsan 600:
601: ;; Get the index of the branch of the most recently evaluated regular
602: ;; expression that matched. (used for identifying branches "a\\|b\\|c...")
603: (defun forth-get-regexp-branch ()
604: (let ((count 2))
1.59 dvdkhlng 605: (while (not (condition-case err (match-beginning count)
606: (args-out-of-range t))) ; XEmacs requires error handling
1.48 pazsan 607: (setq count (1+ count)))
608: count))
609:
610: ;; seek to next forth-word and return its "word-description"
611: (defun forth-next-known-forth-word (to)
612: (if (<= (point) to)
613: (progn
614: (let* ((regexp (car forth-compiled-words))
615: (pos (re-search-forward regexp to t)))
616: (if pos (let ((branch (forth-get-regexp-branch))
617: (descr (cdr forth-compiled-words)))
618: (goto-char (match-beginning 0))
619: (cdr (assoc branch descr)))
620: 'nil)))
621: nil))
622:
623: ;; Set properties of forth word at `point', eventually parsing subsequent
624: ;; words, and parsing all whitespaces. Set point to delimiter after word.
625: ;; The word, including it's parsed text gets the `forth-word' property, whose
626: ;; value is unique, and may be used for getting the word's start/end
627: ;; positions.
628: (defun forth-set-word-properties (state data)
629: (let* ((start (point))
630: (end (progn (re-search-forward "[ \t]\\|$" (point-max) 1)
631: (point)))
632: (type (car data))
633: (hilight (nth 1 data))
634: (bad-word (and (not state) (eq type 'compile-only)))
635: (hlface (if bad-word font-lock-warning-face
636: (if (<= (cdr hilight) forth-hilight-level)
637: (car hilight) nil))))
638: (when hlface (put-text-property start end 'face hlface))
639: ;; if word parses in current state, process parsed range of text
640: (when (or (not state) (eq type 'compile-only) (eq type 'immediate))
641: (let ((parse-data (nthcdr 2 data)))
642: (while parse-data
643: (let ((delim (nth 0 parse-data))
644: (skip-leading (nth 1 parse-data))
645: (parse-type (nth 2 parse-data))
646: (parsed-hilight (nth 3 parse-data))
647: (parse-start (point))
648: (parse-end))
649: (when skip-leading
650: (while (and (looking-at delim) (> (match-end 0) (point))
651: (not (looking-at "\n")))
652: (forward-char)))
653: (re-search-forward delim (point-max) 1)
654: (setq parse-end (point))
655: (forth-delete-properties end parse-end)
656: (when (<= (cdr parsed-hilight) forth-hilight-level)
657: (put-text-property
658: parse-start parse-end 'face (car parsed-hilight)))
659: (put-text-property
660: parse-start parse-end 'forth-parsed parse-type)
661: (setq end parse-end)
662: (setq parse-data (nthcdr 4 parse-data))))))
663: (put-text-property start end 'forth-word start)))
664:
665: ;; Search for known Forth words in the range `from' to `to', using
666: ;; `forth-next-known-forth-word' and set their properties via
667: ;; `forth-set-word-properties'.
1.51 dvdkhlng 668: (defun forth-update-properties (from to &optional loudly)
1.48 pazsan 669: (save-excursion
1.51 dvdkhlng 670: (let ((msg-count 0) (state) (word-descr) (last-location))
1.48 pazsan 671: (goto-char (forth-previous-word (forth-previous-start
672: (max (point-min) (1- from)))))
673: (setq to (forth-next-end (min (point-max) (1+ to))))
674: ;; `to' must be on a space delimiter, if a parsing word was changed
675: (setq to (forth-next-whitespace to))
676: (setq state (get-text-property (point) 'forth-state))
677: (setq last-location (point))
678: (forth-delete-properties (point) to)
1.55 dvdkhlng 679: (put-text-property (point) to 'fontified t)
1.48 pazsan 680: ;; hilight loop...
681: (while (setq word-descr (forth-next-known-forth-word to))
1.51 dvdkhlng 682: (when loudly
683: (when (equal 0 (% msg-count 100))
684: (message "Parsing Forth code...%s"
685: (make-string (/ msg-count 100) ?.)))
686: (setq msg-count (1+ msg-count)))
1.48 pazsan 687: (forth-set-word-properties state word-descr)
688: (when state (put-text-property last-location (point) 'forth-state t))
689: (let ((type (car word-descr)))
690: (if (eq type 'definition-starter) (setq state t))
691: (if (eq type 'definition-ender) (setq state nil))
692: (setq last-location (point))))
693: ;; update state property up to `to'
694: (if (and state (< (point) to))
695: (put-text-property last-location to 'forth-state t))
696: ;; extend search if following state properties differ from current state
697: (if (< to (point-max))
698: (if (not (equal state (get-text-property (1+ to) 'forth-state)))
699: (let ((extend-to (next-single-property-change
700: to 'forth-state (current-buffer) (point-max))))
701: (forth-update-properties to extend-to))
702: ))
703: )))
704:
705: ;; save-buffer-state borrowed from `font-lock.el'
706: (eval-when-compile
707: (defmacro forth-save-buffer-state (varlist &rest body)
708: "Bind variables according to VARLIST and eval BODY restoring buffer state."
1.75 pazsan 709: `(let* (,@(append varlist
1.48 pazsan 710: '((modified (buffer-modified-p)) (buffer-undo-list t)
711: (inhibit-read-only t) (inhibit-point-motion-hooks t)
712: before-change-functions after-change-functions
1.75 pazsan 713: deactivate-mark buffer-file-name buffer-file-truename)))
714: ,@body
1.48 pazsan 715: (when (and (not modified) (buffer-modified-p))
1.75 pazsan 716: (set-buffer-modified-p nil)))))
1.48 pazsan 717:
718: ;; Function that is added to the `change-functions' hook. Calls
719: ;; `forth-update-properties' and keeps care of disabling undo information
720: ;; and stuff like that.
1.51 dvdkhlng 721: (defun forth-change-function (from to len &optional loudly)
1.48 pazsan 722: (save-match-data
1.55 dvdkhlng 723: (forth-save-buffer-state
724: ()
725: (unless forth-disable-parser (forth-update-properties from to loudly))
726: (forth-update-warn-long-lines))))
727:
728: (defun forth-fontification-function (from)
729: "Function to be called from `fontification-functions' of Emacs 21."
730: (save-match-data
731: (forth-save-buffer-state
732: ((to (min (point-max) (+ from 100))))
733: (unless (or forth-disable-parser (not forth-jit-parser)
734: (get-text-property from 'fontified))
735: (forth-update-properties from to)))))
1.48 pazsan 736:
737: (eval-when-compile
738: (byte-compile 'forth-set-word-properties)
739: (byte-compile 'forth-next-known-forth-word)
740: (byte-compile 'forth-update-properties)
741: (byte-compile 'forth-delete-properties)
742: (byte-compile 'forth-get-regexp-branch))
743:
1.51 dvdkhlng 744: ;;; imenu support
745: ;;;
1.52 dvdkhlng 746: (defvar forth-defining-words
747: '("VARIABLE" "CONSTANT" "2VARIABLE" "2CONSTANT" "FVARIABLE" "FCONSTANT"
748: "USER" "VALUE" "field" "end-struct" "VOCABULARY" "CREATE" ":" "CODE"
749: "DEFER" "ALIAS")
1.53 dvdkhlng 750: "List of words, that define the following word.
1.55 dvdkhlng 751: Used for imenu index generation.")
1.52 dvdkhlng 752:
1.57 dvdkhlng 753: (defvar forth-defining-words-regexp nil
754: "Regexp that's generated for matching `forth-defining-words'")
1.52 dvdkhlng 755:
1.51 dvdkhlng 756: (defun forth-next-definition-starter ()
757: (progn
1.52 dvdkhlng 758: (let* ((pos (re-search-forward forth-defining-words-regexp (point-max) t)))
1.51 dvdkhlng 759: (if pos
760: (if (or (text-property-not-all (match-beginning 0) (match-end 0)
1.52 dvdkhlng 761: 'forth-parsed nil)
762: (text-property-not-all (match-beginning 0) (match-end 0)
763: 'forth-state nil))
1.51 dvdkhlng 764: (forth-next-definition-starter)
765: t)
766: nil))))
767:
768: (defun forth-create-index ()
1.52 dvdkhlng 769: (let* ((forth-defining-words-regexp
770: (concat "\\<\\(" (regexp-opt forth-defining-words) "\\)\\>"))
1.51 dvdkhlng 771: (index nil))
772: (goto-char (point-min))
773: (while (forth-next-definition-starter)
774: (if (looking-at "[ \t]*\\([^ \t\n]+\\)")
775: (setq index (cons (cons (match-string 1) (point)) index))))
776: index))
777:
1.57 dvdkhlng 778: ;; top-level require is executed at byte-compile and load time
1.58 dvdkhlng 779: (eval-and-compile (forth-require 'speedbar))
1.57 dvdkhlng 780:
781: ;; this code is executed at load-time only
1.58 dvdkhlng 782: (when (memq 'speedbar features)
1.57 dvdkhlng 783: (speedbar-add-supported-extension ".fs")
784: (speedbar-add-supported-extension ".fb"))
1.51 dvdkhlng 785:
1.48 pazsan 786: ;; (require 'profile)
787: ;; (setq profile-functions-list '(forth-set-word-properties forth-next-known-forth-word forth-update-properties forth-delete-properties forth-get-regexp-branch))
788:
789: ;;; Indentation
790: ;;;
791:
792: ;; Return, whether `pos' is the first forth word on its line
793: (defun forth-first-word-on-line-p (pos)
794: (save-excursion
795: (beginning-of-line)
796: (skip-chars-forward " \t")
797: (= pos (point))))
798:
799: ;; Return indentation data (SELF-INDENT . NEXT-INDENT) of next known
800: ;; indentation word, or nil if there is no word up to `to'.
801: ;; Position `point' at location just after found word, or at `to'. Parsed
802: ;; ranges of text will not be taken into consideration!
803: (defun forth-next-known-indent-word (to)
804: (if (<= (point) to)
805: (progn
806: (let* ((regexp (car forth-compiled-indent-words))
807: (pos (re-search-forward regexp to t)))
808: (if pos
1.54 dvdkhlng 809: (let* ((start (match-beginning 0))
810: (end (match-end 0))
811: (branch (forth-get-regexp-branch))
812: (descr (cdr forth-compiled-indent-words))
813: (indent (cdr (assoc branch descr)))
814: (type (nth 2 indent)))
815: ;; skip words that are parsed (strings/comments) and
816: ;; non-immediate words inside definitions
817: (if (or (text-property-not-all start end 'forth-parsed nil)
818: (and (eq type 'non-immediate)
819: (text-property-not-all start end
820: 'forth-state nil)))
821: (forth-next-known-indent-word to)
1.48 pazsan 822: (if (forth-first-word-on-line-p (match-beginning 0))
823: (nth 0 indent) (nth 1 indent))))
824: nil)))
825: nil))
826:
827: ;; Translate indentation value `indent' to indentation column. Multiples of
828: ;; 2 correspond to multiples of `forth-indent-level'. Odd numbers get an
829: ;; additional `forth-minor-indent-level' added (or substracted).
830: (defun forth-convert-to-column (indent)
831: (let* ((sign (if (< indent 0) -1 1))
832: (value (abs indent))
833: (major (* (/ value 2) forth-indent-level))
834: (minor (* (% value 2) forth-minor-indent-level)))
835: (* sign (+ major minor))))
836:
837: ;; Return the column increment, that the current line of forth code does to
838: ;; the current or following lines. `which' specifies which indentation values
1.70 dvdkhlng 839: ;; to use. 1 means the indentation of following lines relative to current
840: ;; line, 0 means the indentation of the current line relative to the previous
1.48 pazsan 841: ;; line. Return `nil', if there are no indentation words on the current line.
842: (defun forth-get-column-incr (which)
843: (save-excursion
844: (let ((regexp (car forth-compiled-indent-words))
845: (word-indent)
846: (self-indent nil)
847: (next-indent nil)
848: (to (save-excursion (end-of-line) (point))))
849: (beginning-of-line)
850: (while (setq word-indent (forth-next-known-indent-word to))
851: (let* ((self-incr (car word-indent))
852: (next-incr (cdr word-indent))
853: (self-column-incr (forth-convert-to-column self-incr))
854: (next-column-incr (forth-convert-to-column next-incr)))
855: (setq next-indent (if next-indent next-indent 0))
856: (setq self-indent (if self-indent self-indent 0))
857: (if (or (and (> next-indent 0) (< self-column-incr 0))
858: (and (< next-indent 0) (> self-column-incr 0)))
859: (setq next-indent (+ next-indent self-column-incr))
860: (setq self-indent (+ self-indent self-column-incr)))
861: (setq next-indent (+ next-indent next-column-incr))))
862: (nth which (list self-indent next-indent)))))
863:
864: ;; Find previous line that contains indentation words, return the column,
865: ;; to which following text should be indented to.
866: (defun forth-get-anchor-column ()
867: (save-excursion
868: (if (/= 0 (forward-line -1)) 0
1.54 dvdkhlng 869: (let ((indent))
1.48 pazsan 870: (while (not (or (setq indent (forth-get-column-incr 1))
871: (<= (point) (point-min))))
872: (forward-line -1))
873: (+ (current-indentation) (if indent indent 0))))))
874:
875: (defun forth-indent-line (&optional flag)
876: "Correct indentation of the current Forth line."
877: (let* ((anchor (forth-get-anchor-column))
878: (column-incr (forth-get-column-incr 0)))
879: (forth-indent-to (if column-incr (+ anchor column-incr) anchor))))
880:
1.49 dvdkhlng 881: (defun forth-current-column ()
882: (- (point) (save-excursion (beginning-of-line) (point))))
883: (defun forth-current-indentation ()
884: (- (save-excursion (beginning-of-line) (forward-to-indentation 0) (point))
885: (save-excursion (beginning-of-line) (point))))
886:
1.48 pazsan 887: (defun forth-indent-to (x)
888: (let ((p nil))
1.49 dvdkhlng 889: (setq p (- (forth-current-column) (forth-current-indentation)))
1.48 pazsan 890: (forth-delete-indentation)
891: (beginning-of-line)
892: (indent-to x)
893: (if (> p 0) (forward-char p))))
894:
895: (defun forth-delete-indentation ()
896: (save-excursion
897: (delete-region
898: (progn (beginning-of-line) (point))
899: (progn (back-to-indentation) (point)))))
900:
901: (defun forth-indent-command ()
902: (interactive)
903: (forth-indent-line t))
904:
905: ;; remove trailing whitespaces in current line
906: (defun forth-remove-trailing ()
907: (save-excursion
908: (end-of-line)
909: (delete-region (point) (progn (skip-chars-backward " \t") (point)))))
910:
911: ;; insert newline, removing any trailing whitespaces in the current line
912: (defun forth-newline-remove-trailing ()
913: (save-excursion
1.49 dvdkhlng 914: (delete-region (point) (progn (skip-chars-backward " \t") (point))))
915: (newline))
916: ; (let ((was-point (point-marker)))
917: ; (unwind-protect
918: ; (progn (forward-line -1) (forth-remove-trailing))
919: ; (goto-char (was-point)))))
1.48 pazsan 920:
921: ;; workaround for bug in `reindent-then-newline-and-indent'
922: (defun forth-reindent-then-newline-and-indent ()
923: (interactive "*")
924: (indent-according-to-mode)
925: (forth-newline-remove-trailing)
926: (indent-according-to-mode))
927:
928:
929: ;;; Block file encoding/decoding (dk)
930: ;;;
931:
932: (defconst forth-c/l 64 "Number of characters per block line")
933: (defconst forth-l/b 16 "Number of lines per block")
934:
935: ;; Check whether the unconverted block file line, point is in, does not
936: ;; contain `\n' and `\t' characters.
937: (defun forth-check-block-line (line)
938: (let ((end (save-excursion (beginning-of-line) (forward-char forth-c/l)
939: (point))))
940: (save-excursion
941: (beginning-of-line)
942: (when (search-forward "\n" end t)
943: (message "Warning: line %i contains newline character #10" line)
944: (ding t))
945: (beginning-of-line)
946: (when (search-forward "\t" end t)
947: (message "Warning: line %i contains tab character #8" line)
948: (ding t)))))
949:
950: (defun forth-convert-from-block (from to)
951: "Convert block file format to stream source in current buffer."
952: (let ((line (count-lines (point-min) from)))
953: (save-excursion
954: (goto-char from)
955: (set-mark to)
956: (while (< (+ (point) forth-c/l) (mark t))
957: (setq line (1+ line))
958: (forth-check-block-line line)
959: (forward-char forth-c/l)
960: (forth-newline-remove-trailing))
961: (when (= (+ (point) forth-c/l) (mark t))
962: (forth-remove-trailing))
963: (mark t))))
964:
965: ;; Pad a line of a block file up to `forth-c/l' characters, positioning `point'
966: ;; at the end of line.
967: (defun forth-pad-block-line ()
968: (save-excursion
969: (end-of-line)
970: (if (<= (current-column) forth-c/l)
971: (move-to-column forth-c/l t)
972: (message "Line %i longer than %i characters, truncated"
973: (count-lines (point-min) (point)) forth-c/l)
974: (ding t)
975: (move-to-column forth-c/l t)
976: (delete-region (point) (progn (end-of-line) (point))))))
977:
978: ;; Replace tab characters in current line by spaces.
979: (defun forth-convert-tabs-in-line ()
980: (save-excursion
981: (beginning-of-line)
982: (while (search-forward "\t" (save-excursion (end-of-line) (point)) t)
983: (backward-char)
984: (delete-region (point) (1+ (point)))
985: (insert-char ?\ (- tab-width (% (current-column) tab-width))))))
986:
987: ;; Delete newline at end of current line, concatenating it with the following
988: ;; line. Place `point' at end of newly formed line.
989: (defun forth-delete-newline ()
990: (end-of-line)
991: (delete-region (point) (progn (beginning-of-line 2) (point))))
992:
993: (defun forth-convert-to-block (from to &optional original-buffer)
994: "Convert range of text to block file format in current buffer."
995: (let* ((lines 0)) ; I have to count lines myself, since `count-lines' has
996: ; problems with trailing newlines...
997: (save-excursion
998: (goto-char from)
999: (set-mark to)
1000: ;; pad lines to full length (`forth-c/l' characters per line)
1001: (while (< (save-excursion (end-of-line) (point)) (mark t))
1002: (setq lines (1+ lines))
1003: (forth-pad-block-line)
1004: (forth-convert-tabs-in-line)
1005: (forward-line))
1006: ;; also make sure the last line is padded, if `to' is at its end
1007: (end-of-line)
1008: (when (= (point) (mark t))
1009: (setq lines (1+ lines))
1010: (forth-pad-block-line)
1011: (forth-convert-tabs-in-line))
1012: ;; remove newlines between lines
1013: (goto-char from)
1014: (while (< (save-excursion (end-of-line) (point)) (mark t))
1015: (forth-delete-newline))
1016: ;; append empty lines, until last block is complete
1017: (goto-char (mark t))
1018: (let* ((required (* (/ (+ lines (1- forth-l/b)) forth-l/b) forth-l/b))
1019: (pad-lines (- required lines)))
1020: (while (> pad-lines 0)
1021: (insert-char ?\ forth-c/l)
1022: (setq pad-lines (1- pad-lines))))
1023: (point))))
1024:
1025: (defun forth-detect-block-file-p ()
1026: "Return non-nil if the current buffer is in block file format. Detection is
1027: done by checking whether the first line has 1024 characters or more."
1028: (save-restriction
1029: (widen)
1030: (save-excursion
1.54 dvdkhlng 1031: (goto-char (point-min))
1.48 pazsan 1032: (end-of-line)
1033: (>= (current-column) 1024))))
1034:
1035: ;; add block file conversion routines to `format-alist'
1036: (defconst forth-block-format-description
1037: '(forth-blocks "Forth block source file" nil
1038: forth-convert-from-block forth-convert-to-block
1039: t normal-mode))
1040: (unless (memq forth-block-format-description format-alist)
1041: (setq format-alist (cons forth-block-format-description format-alist)))
1042:
1043: ;;; End block file encoding/decoding
1044:
1045: ;;; Block file editing
1046: ;;;
1047: (defvar forth-overlay-arrow-string ">>")
1048: (defvar forth-block-base 1 "Number of first block in block file")
1049: (defvar forth-show-screen nil
1050: "Non-nil means to show screen starts and numbers (for block files)")
1051: (defvar forth-warn-long-lines nil
1052: "Non-nil means to warn about lines that are longer than 64 characters")
1053:
1054: (defvar forth-screen-marker nil)
1.57 dvdkhlng 1055: (defvar forth-screen-number-string nil)
1.48 pazsan 1056:
1057: (defun forth-update-show-screen ()
1058: "If `forth-show-screen' is non-nil, put overlay arrow to start of screen,
1059: `point' is in. If arrow now points to different screen than before, display
1060: screen number."
1061: (if (not forth-show-screen)
1062: (setq overlay-arrow-string nil)
1063: (save-excursion
1064: (let* ((line (count-lines (point-min) (min (point-max) (1+ (point)))))
1065: (first-line (1+ (* (/ (1- line) forth-l/b) forth-l/b)))
1066: (scr (+ forth-block-base (/ first-line forth-l/b))))
1067: (setq overlay-arrow-string forth-overlay-arrow-string)
1068: (goto-line first-line)
1069: (setq overlay-arrow-position forth-screen-marker)
1.50 dvdkhlng 1070: (set-marker forth-screen-marker
1071: (save-excursion (goto-line first-line) (point)))
1072: (setq forth-screen-number-string (format "%d" scr))))))
1.48 pazsan 1073:
1074: (add-hook 'forth-motion-hooks 'forth-update-show-screen)
1075:
1076: (defun forth-update-warn-long-lines ()
1077: "If `forth-warn-long-lines' is non-nil, display a warning whenever a line
1078: exceeds 64 characters."
1079: (when forth-warn-long-lines
1080: (when (> (save-excursion (end-of-line) (current-column)) forth-c/l)
1081: (message "Warning: current line exceeds %i characters"
1082: forth-c/l))))
1083:
1084: (add-hook 'forth-motion-hooks 'forth-update-warn-long-lines)
1.55 dvdkhlng 1085:
1.48 pazsan 1086: ;;; End block file editing
1.1 anton 1087:
1.6 anton 1088:
1.1 anton 1089: (defvar forth-mode-abbrev-table nil
1090: "Abbrev table in use in Forth-mode buffers.")
1091:
1092: (define-abbrev-table 'forth-mode-abbrev-table ())
1093:
1094: (defvar forth-mode-map nil
1095: "Keymap used in Forth mode.")
1096:
1097: (if (not forth-mode-map)
1098: (setq forth-mode-map (make-sparse-keymap)))
1099:
1.9 anton 1100: ;(define-key forth-mode-map "\M-\C-x" 'compile)
1.7 anton 1101: (define-key forth-mode-map "\C-x\\" 'comment-region)
1102: (define-key forth-mode-map "\C-x~" 'forth-remove-tracers)
1.1 anton 1103: (define-key forth-mode-map "\C-x\C-m" 'forth-split)
1104: (define-key forth-mode-map "\e " 'forth-reload)
1105: (define-key forth-mode-map "\t" 'forth-indent-command)
1.48 pazsan 1106: (define-key forth-mode-map "\C-m" 'forth-reindent-then-newline-and-indent)
1.7 anton 1107: (define-key forth-mode-map "\M-q" 'forth-fill-paragraph)
1.13 pazsan 1108: (define-key forth-mode-map "\e." 'forth-find-tag)
1.1 anton 1109:
1.61 dvdkhlng 1110: ;; setup for C-h C-i to work
1.58 dvdkhlng 1111: (eval-and-compile (forth-require 'info-look))
1112: (when (memq 'info-look features)
1.61 dvdkhlng 1113: (defvar forth-info-lookup '(symbol (forth-mode "\\S-+" t
1.59 dvdkhlng 1114: (("(gforth)Word Index"))
1.61 dvdkhlng 1115: "\\S-+")))
1.59 dvdkhlng 1116: (unless (memq forth-info-lookup info-lookup-alist)
1.61 dvdkhlng 1117: (setq info-lookup-alist (cons forth-info-lookup info-lookup-alist)))
1118: ;; in X-Emacs C-h C-i is by default bound to Info-query
1.69 dvdkhlng 1119: (define-key forth-mode-map [?\C-h ?\C-i] 'info-lookup-symbol))
1.59 dvdkhlng 1120:
1121: ;; (info-lookup-add-help
1122: ;; :topic 'symbol
1123: ;; :mode 'forth-mode
1124: ;; :regexp "[^
1125: ;; ]+"
1126: ;; :ignore-case t
1127: ;; :doc-spec '(("(gforth)Name Index" nil "`" "' "))))
1.35 anton 1128:
1.57 dvdkhlng 1129: (require 'etags)
1.13 pazsan 1130:
1131: (defun forth-find-tag (tagname &optional next-p regexp-p)
1132: (interactive (find-tag-interactive "Find tag: "))
1.53 dvdkhlng 1133: (unless (or regexp-p next-p)
1.67 dvdkhlng 1134: (setq tagname (concat "\\(^\\|\\s-+\\)\\(" (regexp-quote tagname)
1135: "\\)\\s-*\x7f")))
1.13 pazsan 1136: (switch-to-buffer
1.53 dvdkhlng 1137: (find-tag-noselect tagname next-p t)))
1.13 pazsan 1138:
1.1 anton 1139: (defvar forth-mode-syntax-table nil
1140: "Syntax table in use in Forth-mode buffers.")
1141:
1.48 pazsan 1142: ;; Important: hilighting/indentation now depends on a correct syntax table.
1143: ;; All characters, except whitespace *must* belong to the "word constituent"
1144: ;; syntax class. If different behaviour is required, use of Categories might
1145: ;; help.
1146: (if (not forth-mode-syntax-table)
1.1 anton 1147: (progn
1148: (setq forth-mode-syntax-table (make-syntax-table))
1.6 anton 1149: (let ((char 0))
1150: (while (< char ?!)
1151: (modify-syntax-entry char " " forth-mode-syntax-table)
1152: (setq char (1+ char)))
1153: (while (< char 256)
1154: (modify-syntax-entry char "w" forth-mode-syntax-table)
1155: (setq char (1+ char))))
1156: ))
1.1 anton 1157:
1158: (defun forth-mode-variables ()
1159: (set-syntax-table forth-mode-syntax-table)
1160: (setq local-abbrev-table forth-mode-abbrev-table)
1161: (make-local-variable 'paragraph-start)
1162: (setq paragraph-start (concat "^$\\|" page-delimiter))
1163: (make-local-variable 'paragraph-separate)
1164: (setq paragraph-separate paragraph-start)
1165: (make-local-variable 'indent-line-function)
1166: (setq indent-line-function 'forth-indent-line)
1.6 anton 1167: ; (make-local-variable 'require-final-newline)
1168: ; (setq require-final-newline t)
1.1 anton 1169: (make-local-variable 'comment-start)
1.3 anton 1170: (setq comment-start "\\ ")
1171: ;(make-local-variable 'comment-end)
1172: ;(setq comment-end " )")
1.1 anton 1173: (make-local-variable 'comment-column)
1174: (setq comment-column 40)
1175: (make-local-variable 'comment-start-skip)
1.65 dvdkhlng 1176: (setq comment-start-skip "\\\\ ")
1.57 dvdkhlng 1177: (make-local-variable 'comment-indent-function)
1178: (setq comment-indent-function 'forth-comment-indent)
1.1 anton 1179: (make-local-variable 'parse-sexp-ignore-comments)
1.47 pazsan 1180: (setq parse-sexp-ignore-comments t)
1.48 pazsan 1181: (setq case-fold-search t)
1.55 dvdkhlng 1182: (make-local-variable 'forth-was-point)
1183: (setq forth-was-point -1)
1.48 pazsan 1184: (make-local-variable 'forth-words)
1185: (make-local-variable 'forth-compiled-words)
1186: (make-local-variable 'forth-compiled-indent-words)
1187: (make-local-variable 'forth-hilight-level)
1188: (make-local-variable 'after-change-functions)
1189: (make-local-variable 'forth-show-screen)
1190: (make-local-variable 'forth-screen-marker)
1191: (make-local-variable 'forth-warn-long-lines)
1.50 dvdkhlng 1192: (make-local-variable 'forth-screen-number-string)
1.51 dvdkhlng 1193: (make-local-variable 'forth-use-oof)
1194: (make-local-variable 'forth-use-objects)
1.48 pazsan 1195: (setq forth-screen-marker (copy-marker 0))
1.51 dvdkhlng 1196: (add-hook 'after-change-functions 'forth-change-function)
1.62 dvdkhlng 1197: (if (and forth-jit-parser (>= emacs-major-version 21))
1.55 dvdkhlng 1198: (add-hook 'fontification-functions 'forth-fontification-function))
1.51 dvdkhlng 1199: (setq imenu-create-index-function 'forth-create-index))
1.47 pazsan 1200:
1.2 anton 1201: ;;;###autoload
1.1 anton 1202: (defun forth-mode ()
1203: "
1204: Major mode for editing Forth code. Tab indents for Forth code. Comments
1.9 anton 1205: are delimited with \\ and newline. Paragraphs are separated by blank lines
1.49 dvdkhlng 1206: only. Block files are autodetected, when read, and converted to normal
1207: stream source format. See also `forth-block-mode'.
1.1 anton 1208: \\{forth-mode-map}
1209:
1.48 pazsan 1210: Variables controlling syntax hilighting/recognition of parsed text:
1211: `forth-words'
1212: List of words that have a special parsing behaviour and/or should be
1.51 dvdkhlng 1213: hilighted. Add custom words by setting forth-custom-words in your
1214: .emacs, or by setting forth-local-words, in source-files' local
1215: variables lists.
1216: forth-use-objects
1.55 dvdkhlng 1217: Set this variable to non-nil in your .emacs, or in a local variables
1.51 dvdkhlng 1218: list, to hilight and recognize the words from the \"Objects\" package
1219: for object-oriented programming.
1220: forth-use-oof
1221: Same as above, just for the \"OOF\" package.
1222: forth-custom-words
1223: List of custom Forth words to prepend to `forth-words'. Should be set
1224: in your .emacs.
1.49 dvdkhlng 1225: forth-local-words
1226: List of words to prepend to `forth-words', whenever a forth-mode
1227: buffer is created. That variable should be set by Forth sources, using
1228: a local variables list at the end of file, to get file-specific
1229: hilighting.
1230: 0 [IF]
1231: Local Variables: ...
1232: forth-local-words: ...
1233: End:
1234: [THEN]
1.48 pazsan 1235: forth-hilight-level
1236: Controls how much syntax hilighting is done. Should be in the range
1.51 dvdkhlng 1237: 0..3
1.48 pazsan 1238:
1.1 anton 1239: Variables controlling indentation style:
1.48 pazsan 1240: `forth-indent-words'
1241: List of words that influence indentation.
1.51 dvdkhlng 1242: forth-local-indent-words
1.49 dvdkhlng 1243: List of words to prepend to `forth-indent-words', similar to
1.51 dvdkhlng 1244: forth-local-words. Should be used for specifying file-specific
1.49 dvdkhlng 1245: indentation, using a local variables list.
1.51 dvdkhlng 1246: forth-custom-indent-words
1247: List of words to prepend to `forth-indent-words'. Should be set in your
1248: .emacs.
1.1 anton 1249: forth-indent-level
1250: Indentation increment/decrement of Forth statements.
1.48 pazsan 1251: forth-minor-indent-level
1252: Minor indentation increment/decrement of Forth statemens.
1.1 anton 1253:
1.48 pazsan 1254: Variables controlling block-file editing:
1.51 dvdkhlng 1255: forth-show-screen
1.48 pazsan 1256: Non-nil means, that the start of the current screen is marked by an
1.50 dvdkhlng 1257: overlay arrow, and screen numbers are displayed in the mode line.
1258: This variable is by default nil for `forth-mode' and t for
1259: `forth-block-mode'.
1.51 dvdkhlng 1260: forth-overlay-arrow-string
1.48 pazsan 1261: String to display as the overlay arrow, when `forth-show-screen' is t.
1262: Setting this variable to nil disables the overlay arrow.
1.51 dvdkhlng 1263: forth-block-base
1.48 pazsan 1264: Screen number of the first block in a block file. Defaults to 1.
1.51 dvdkhlng 1265: forth-warn-long-lines
1.48 pazsan 1266: Non-nil means that a warning message is displayed whenever you edit or
1267: move over a line that is longer than 64 characters (the maximum line
1268: length that can be stored into a block file). This variable defaults to
1269: t for `forth-block-mode' and to nil for `forth-mode'.
1.1 anton 1270:
1.66 dvdkhlng 1271: Variables controlling interaction with the Forth-process (also see
1272: `run-forth'):
1273: forth-program-name
1274: Program invoked by the `run-forth' command (including arguments).
1275: inferior-forth-mode-hook
1276: Hook for customising inferior-forth-mode.
1277: forth-compile-command
1278: Default command to execute on `compile'.
1279: "
1.1 anton 1280: (interactive)
1281: (kill-all-local-variables)
1282: (use-local-map forth-mode-map)
1283: (setq mode-name "Forth")
1284: (setq major-mode 'forth-mode)
1.62 dvdkhlng 1285: (forth-install-motion-hook)
1.48 pazsan 1286: ;; convert buffer contents from block file format, if necessary
1287: (when (forth-detect-block-file-p)
1288: (widen)
1289: (message "Converting from Forth block source...")
1290: (forth-convert-from-block (point-min) (point-max))
1291: (message "Converting from Forth block source...done"))
1292: ;; if user switched from forth-block-mode to forth-mode, make sure the file
1293: ;; is now stored as normal strem source
1294: (when (equal buffer-file-format '(forth-blocks))
1295: (setq buffer-file-format nil))
1.1 anton 1296: (forth-mode-variables)
1297: ; (if (not (forth-process-running-p))
1298: ; (run-forth forth-program-name))
1.49 dvdkhlng 1299: (run-hooks 'forth-mode-hook))
1.48 pazsan 1300:
1.50 dvdkhlng 1301: ;;;###autoload
1.48 pazsan 1302: (define-derived-mode forth-block-mode forth-mode "Forth Block Source"
1303: "Major mode for editing Forth block source files, derived from
1304: `forth-mode'. Differences to `forth-mode' are:
1305: * files are converted to block format, when written (`buffer-file-format'
1306: is set to `(forth-blocks)')
1307: * `forth-show-screen' and `forth-warn-long-lines' are t by default
1308:
1309: Note that the length of lines in block files is limited to 64 characters.
1310: When writing longer lines to a block file, a warning is displayed in the
1311: echo area and the line is truncated.
1312:
1313: Another problem is imposed by block files that contain newline or tab
1314: characters. When Emacs converts such files back to block file format,
1.50 dvdkhlng 1315: it'll translate those characters to a number of spaces. However, when
1.48 pazsan 1316: you read such a file, a warning message is displayed in the echo area,
1317: including a line number that may help you to locate and fix the problem.
1318:
1319: So have a look at the *Messages* buffer, whenever you hear (or see) Emacs'
1320: bell during block file read/write operations."
1321: (setq buffer-file-format '(forth-blocks))
1322: (setq forth-show-screen t)
1.50 dvdkhlng 1323: (setq forth-warn-long-lines t)
1324: (setq forth-screen-number-string (format "%d" forth-block-base))
1325: (setq mode-line-format (append (reverse (cdr (reverse mode-line-format)))
1326: '("--S" forth-screen-number-string "-%-"))))
1.1 anton 1327:
1.44 anton 1328: (add-hook 'forth-mode-hook
1.9 anton 1329: '(lambda ()
1330: (make-local-variable 'compile-command)
1.49 dvdkhlng 1331: (setq compile-command "gforth ")
1332: (forth-hack-local-variables)
1.51 dvdkhlng 1333: (forth-customize-words)
1.49 dvdkhlng 1334: (forth-compile-words)
1.55 dvdkhlng 1335: (unless (and forth-jit-parser (>= emacs-major-version 21))
1336: (forth-change-function (point-min) (point-max) nil t))))
1.6 anton 1337:
1.7 anton 1338: (defun forth-fill-paragraph ()
1339: "Fill comments (starting with '\'; do not fill code (block style
1340: programmers who tend to fill code won't use emacs anyway:-)."
1.9 anton 1341: ; Currently only comments at the start of the line are filled.
1342: ; Something like lisp-fill-paragraph may be better. We cannot use
1343: ; fill-paragraph, because it removes the \ from the first comment
1344: ; line. Therefore we have to look for the first line of the comment
1345: ; and use fill-region.
1.7 anton 1346: (interactive)
1347: (save-excursion
1348: (beginning-of-line)
1.9 anton 1349: (while (and
1350: (= (forward-line -1) 0)
1.14 anton 1351: (looking-at "[ \t]*\\\\g?[ \t]+")))
1352: (if (not (looking-at "[ \t]*\\\\g?[ \t]+"))
1.9 anton 1353: (forward-line 1))
1354: (let ((from (point))
1355: (to (save-excursion (forward-paragraph) (point))))
1.14 anton 1356: (if (looking-at "[ \t]*\\\\g?[ \t]+")
1.9 anton 1357: (progn (goto-char (match-end 0))
1358: (set-fill-prefix)
1359: (fill-region from to nil))))))
1.7 anton 1360:
1.1 anton 1361: (defun forth-comment-indent ()
1362: (save-excursion
1363: (beginning-of-line)
1364: (if (looking-at ":[ \t]*")
1365: (progn
1366: (end-of-line)
1367: (skip-chars-backward " \t\n")
1368: (1+ (current-column)))
1369: comment-column)))
1370:
1371:
1372: ;; Forth commands
1373:
1.7 anton 1374: (defun forth-remove-tracers ()
1375: "Remove tracers of the form `~~ '. Queries the user for each occurrence."
1376: (interactive)
1.16 anton 1377: (query-replace-regexp "\\(~~ \\| ~~$\\)" "" nil))
1.7 anton 1378:
1.66 dvdkhlng 1379: (define-key forth-mode-map "\C-x\C-e" 'compile)
1380: (define-key forth-mode-map "\C-x\C-n" 'next-error)
1381: (require 'compile)
1.1 anton 1382:
1.66 dvdkhlng 1383: (defvar forth-compile-command "gforth ")
1384: ;(defvar forth-compilation-window-percent-height 30)
1.1 anton 1385:
1386: (defun forth-split ()
1387: (interactive)
1388: (forth-split-1 "*forth*"))
1389:
1390: (defun forth-split-1 (buffer)
1391: (if (not (eq (window-buffer) (get-buffer buffer)))
1392: (progn
1393: (delete-other-windows)
1394: (split-window-vertically
1.75 pazsan 1395: (/ (frame-height) 2))
1.1 anton 1396: (other-window 1)
1397: (switch-to-buffer buffer)
1398: (goto-char (point-max))
1399: (other-window 1))))
1400:
1.12 pazsan 1401: ;;; Forth menu
1402: ;;; Mikael Karlsson <qramika@eras70.ericsson.se>
1403:
1.61 dvdkhlng 1404: ;; (dk) code commented out due to complaints of XEmacs users. After
1405: ;; all, there's imenu/speedbar, which uses much smarter scanning
1406: ;; rules.
1407:
1408: ;; (cond ((string-match "XEmacs\\|Lucid" emacs-version)
1409: ;; (require 'func-menu)
1410:
1411: ;; (defconst fume-function-name-regexp-forth
1412: ;; "^\\(:\\)[ \t]+\\([^ \t]*\\)"
1413: ;; "Expression to get word definitions in Forth.")
1414:
1415: ;; (setq fume-function-name-regexp-alist
1416: ;; (append '((forth-mode . fume-function-name-regexp-forth)
1417: ;; ) fume-function-name-regexp-alist))
1418:
1419: ;; ;; Find next forth word in the buffer
1420: ;; (defun fume-find-next-forth-function-name (buffer)
1421: ;; "Searches for the next forth word in BUFFER."
1422: ;; (set-buffer buffer)
1423: ;; (if (re-search-forward fume-function-name-regexp nil t)
1424: ;; (let ((beg (match-beginning 2))
1425: ;; (end (match-end 2)))
1426: ;; (cons (buffer-substring beg end) beg))))
1.12 pazsan 1427:
1.61 dvdkhlng 1428: ;; (setq fume-find-function-name-method-alist
1429: ;; (append '((forth-mode . fume-find-next-forth-function-name))))
1.12 pazsan 1430:
1.61 dvdkhlng 1431: ;; ))
1.12 pazsan 1432: ;;; End Forth menu
1433:
1434: ;;; File folding of forth-files
1435: ;;; uses outline
1436: ;;; Toggle activation with M-x fold-f (when editing a forth-file)
1437: ;;; Use f9 to expand, f10 to hide, Or the menubar in xemacs
1438: ;;;
1439: ;;; Works most of the times but loses sync with the cursor occasionally
1440: ;;; Could be improved by also folding on comments
1441:
1.61 dvdkhlng 1442: ;; (dk) This code needs a rewrite; just too ugly and doesn't use the
1443: ;; newer and smarter scanning rules of `imenu'. Who needs it anyway??
1.12 pazsan 1444:
1.61 dvdkhlng 1445: ;; (require 'outline)
1446:
1447: ;; (defun f-outline-level ()
1448: ;; (cond ((looking-at "\\`\\\\")
1449: ;; 0)
1450: ;; ((looking-at "\\\\ SEC")
1451: ;; 0)
1452: ;; ((looking-at "\\\\ \\\\ .*")
1453: ;; 0)
1454: ;; ((looking-at "\\\\ DEFS")
1455: ;; 1)
1456: ;; ((looking-at "\\/\\* ")
1457: ;; 1)
1458: ;; ((looking-at ": .*")
1459: ;; 1)
1460: ;; ((looking-at "\\\\G")
1461: ;; 2)
1462: ;; ((looking-at "[ \t]+\\\\")
1463: ;; 3)))
1.57 dvdkhlng 1464:
1.61 dvdkhlng 1465: ;; (defun fold-f ()
1466: ;; (interactive)
1467: ;; (add-hook 'outline-minor-mode-hook 'hide-body)
1468:
1469: ;; ; outline mode header start, i.e. find word definitions
1470: ;; ;;; (setq outline-regexp "^\\(:\\)[ \t]+\\([^ \t]*\\)")
1471: ;; (setq outline-regexp "\\`\\\\\\|:\\|\\\\ SEC\\|\\\\G\\|[ \t]+\\\\\\|\\\\ DEFS\\|\\/\\*\\|\\\\ \\\\ .*")
1472: ;; (setq outline-level 'f-outline-level)
1473:
1474: ;; (outline-minor-mode)
1475: ;; (define-key outline-minor-mode-map '(shift up) 'hide-sublevels)
1476: ;; (define-key outline-minor-mode-map '(shift right) 'show-children)
1477: ;; (define-key outline-minor-mode-map '(shift left) 'hide-subtree)
1478: ;; (define-key outline-minor-mode-map '(shift down) 'show-subtree))
1479:
1.29 pazsan 1480:
1481: ;;(define-key global-map '(shift up) 'fold-f)
1482:
1.12 pazsan 1483: ;;; end file folding
1484:
1485: ;;; func-menu is a package that scans your source file for function definitions
1486: ;;; and makes a menubar entry that lets you jump to any particular function
1487: ;;; definition by selecting it from the menu. The following code turns this on
1488: ;;; for all of the recognized languages. Scanning the buffer takes some time,
1489: ;;; but not much.
1490: ;;;
1.61 dvdkhlng 1491: ;; (cond ((string-match "XEmacs\\|Lucid" emacs-version)
1492: ;; (require 'func-menu)
1493: ;; ;; (define-key global-map 'f8 'function-menu)
1494: ;; (add-hook 'find-fible-hooks 'fume-add-menubar-entry)
1495: ;; ; (define-key global-map "\C-cg" 'fume-prompt-function-goto)
1496: ;; ; (define-key global-map '(shift button3) 'mouse-function-menu)
1497: ;; ))
1.66 dvdkhlng 1498:
1499: ;;;
1500: ;;; Inferior Forth interpreter
1501: ;;; -- mostly copied from `cmuscheme.el' of Emacs 21.2
1502: ;;;
1503:
1504: (eval-and-compile (forth-require 'comint))
1505:
1506: (when (memq 'comint features)
1507:
1508: (defvar forth-program-name "gforth"
1509: "*Program invoked by the `run-forth' command, including program arguments")
1510:
1511: (defcustom inferior-forth-mode-hook nil
1512: "*Hook for customising inferior-forth-mode."
1513: :type 'hook
1514: :group 'forth)
1515:
1516: (defvar inferior-forth-mode-map
1517: (let ((m (make-sparse-keymap)))
1518: (define-key m "\r" 'comint-send-input)
1519: (define-key m "\M-\C-x" 'forth-send-paragraph-and-go)
1520: (define-key m "\C-c\C-l" 'forth-load-file)
1521: m))
1522: ;; Install the process communication commands in the forth-mode keymap.
1523: (define-key forth-mode-map "\e\C-m" 'forth-send-paragraph-and-go)
1524: (define-key forth-mode-map "\eo" 'forth-send-buffer-and-go)
1525:
1526: (define-key forth-mode-map "\M-\C-x" 'forth-send-paragraph-and-go)
1527: (define-key forth-mode-map "\C-c\C-r" 'forth-send-region)
1528: (define-key forth-mode-map "\C-c\M-r" 'forth-send-region-and-go)
1529: (define-key forth-mode-map "\C-c\C-z" 'forth-switch-to-interactive)
1530: (define-key forth-mode-map "\C-c\C-l" 'forth-load-file)
1531:
1532: (defvar forth-process-buffer)
1533:
1534: (define-derived-mode inferior-forth-mode comint-mode "Inferior Forth"
1535: "Major mode for interacting with an inferior Forth process.
1536:
1537: The following commands are available:
1538: \\{inferior-forth-mode-map}
1539:
1540: A Forth process can be fired up with M-x run-forth.
1541:
1542: Customisation: Entry to this mode runs the hooks on comint-mode-hook and
1543: inferior-forth-mode-hook (in that order).
1544:
1545: You can send text to the inferior Forth process from other buffers containing
1546: Forth source.
1547: forth-switch-to-interactive switches the current buffer to the Forth
1548: process buffer.
1549: forth-send-paragraph sends the current paragraph to the Forth process.
1550: forth-send-region sends the current region to the Forth process.
1551: forth-send-buffer sends the current buffer to the Forth process.
1552:
1553: forth-send-paragraph-and-go, forth-send-region-and-go,
1554: forth-send-buffer-and-go switch to the Forth process buffer after
1555: sending their text.
1556: For information on running multiple processes in multiple buffers, see
1557: documentation for variable `forth-process-buffer'.
1558:
1559: Commands:
1560: Return after the end of the process' output sends the text from the
1561: end of process to point. If you accidentally suspend your process, use
1562: \\[comint-continue-subjob] to continue it. "
1563: ;; Customise in inferior-forth-mode-hook
1564: (setq comint-prompt-regexp "^")
1565: (setq mode-line-process '(":%s")))
1566:
1567: (defun forth-args-to-list (string)
1568: (let ((where (string-match "[ \t]" string)))
1569: (cond ((null where) (list string))
1570: ((not (= where 0))
1571: (cons (substring string 0 where)
1572: (forth-args-to-list (substring string (+ 1 where)
1573: (length string)))))
1574: (t (let ((pos (string-match "[^ \t]" string)))
1575: (if (null pos)
1576: nil
1577: (forth-args-to-list (substring string pos
1578: (length string)))))))))
1579:
1580: ;;;###autoload
1581: (defun run-forth (cmd)
1582: "Run an inferior Forth process, input and output via buffer *forth*.
1583: If there is a process already running in `*forth*', switch to that buffer.
1584: With argument, allows you to edit the command line (default is value
1585: of `forth-program-name'). Runs the hooks `inferior-forth-mode-hook'
1586: \(after the `comint-mode-hook' is run).
1587: \(Type \\[describe-mode] in the process buffer for a list of commands.)"
1588:
1589: (interactive (list (if current-prefix-arg
1590: (read-string "Run Forth: " forth-program-name)
1591: forth-program-name)))
1592: (if (not (comint-check-proc "*forth*"))
1593: (let ((cmdlist (forth-args-to-list cmd)))
1594: (set-buffer (apply 'make-comint "forth" (car cmdlist)
1595: nil (cdr cmdlist)))
1596: (inferior-forth-mode)))
1597: (setq forth-program-name cmd)
1598: (setq forth-process-buffer "*forth*")
1599: (pop-to-buffer "*forth*"))
1600:
1601: (defun forth-send-region (start end)
1602: "Send the current region to the inferior Forth process."
1603: (interactive "r")
1604: (comint-send-region (forth-proc) start end)
1605: (comint-send-string (forth-proc) "\n"))
1606:
1607: (defun forth-end-of-paragraph ()
1608: (if (looking-at "[\t\n ]+") (skip-chars-backward "\t\n "))
1609: (if (not (re-search-forward "\n[ \t]*\n" nil t))
1610: (goto-char (point-max))))
1611:
1612: (defun forth-send-paragraph ()
1613: "Send the current or the previous paragraph to the Forth process"
1614: (interactive)
1615: (let (end)
1616: (save-excursion
1617: (forth-end-of-paragraph)
1618: (skip-chars-backward "\t\n ")
1619: (setq end (point))
1.75 pazsan 1620: (if (null (re-search-backward "\n[ \t]*\n" nil t))
1.66 dvdkhlng 1621: (goto-char (point-min)))
1622: (skip-chars-forward "\t\n ")
1623: (forth-send-region (point) end))))
1624:
1625: (defun forth-send-paragraph-and-go ()
1626: "Send the current or the previous paragraph to the Forth process.
1627: Then switch to the process buffer."
1628: (interactive)
1629: (forth-send-paragraph)
1630: (forth-switch-to-interactive t))
1631:
1632: (defun forth-send-buffer ()
1633: "Send the current buffer to the Forth process."
1634: (interactive)
1635: (if (eq (current-buffer) forth-process-buffer)
1636: (error "Not allowed to send this buffer's contents to Forth"))
1637: (forth-send-region (point-min) (point-max)))
1638:
1639: (defun forth-send-buffer-and-go ()
1640: "Send the current buffer to the Forth process.
1641: Then switch to the process buffer."
1642: (interactive)
1643: (forth-send-buffer)
1644: (forth-switch-to-interactive t))
1645:
1646:
1647: (defun forth-switch-to-interactive (eob-p)
1648: "Switch to the Forth process buffer.
1649: With argument, position cursor at end of buffer."
1650: (interactive "P")
1651: (if (get-buffer forth-process-buffer)
1652: (pop-to-buffer forth-process-buffer)
1653: (error "No current process buffer. See variable `forth-process-buffer'"))
1654: (cond (eob-p
1655: (push-mark)
1656: (goto-char (point-max)))))
1657:
1.75 pazsan 1658: (defun forth-send-region-and-go (my-start end)
1.66 dvdkhlng 1659: "Send the current region to the inferior Forth process.
1660: Then switch to the process buffer."
1661: (interactive "r")
1.75 pazsan 1662: (forth-send-region my-start end)
1.66 dvdkhlng 1663: (forth-switch-to-interactive t))
1664:
1665: (defcustom forth-source-modes '(forth-mode forth-block-mode)
1666: "*Used to determine if a buffer contains Forth source code.
1667: If it's loaded into a buffer that is in one of these major modes, it's
1668: considered a Forth source file by `forth-load-file' and `forth-compile-file'.
1669: Used by these commands to determine defaults."
1670: :type '(repeat function)
1671: :group 'forth)
1672:
1673: (defvar forth-prev-l/c-dir/file nil
1674: "Caches the last (directory . file) pair.
1675: Caches the last pair used in the last `forth-load-file' or
1676: `forth-compile-file' command. Used for determining the default in the
1677: next one.")
1678:
1679: (defun forth-load-file (file-name)
1680: "Load a Forth file FILE-NAME into the inferior Forth process."
1681: (interactive (comint-get-source "Load Forth file: " forth-prev-l/c-dir/file
1682: forth-source-modes t)) ; T because LOAD
1683: ; needs an exact name
1684: (comint-check-source file-name) ; Check to see if buffer needs saved.
1.70 dvdkhlng 1685: (setq forth-prev-l/c-dir/file (cons (file-name-directory file-name)
1.66 dvdkhlng 1686: (file-name-nondirectory file-name)))
1.70 dvdkhlng 1687: (comint-send-string (forth-proc)
1688: (concat "s\" " file-name "\" included\n")))
1.66 dvdkhlng 1689:
1690:
1691: (defvar forth-process-buffer nil "*The current Forth process buffer.
1692:
1693: See `scheme-buffer' for an explanation on how to run multiple Forth
1694: processes.")
1695:
1696: (defun forth-proc ()
1697: "Return the current Forth process. See variable `forth-process-buffer'."
1698: (let ((proc (get-buffer-process (if (eq major-mode 'inferior-forth-mode)
1699: (current-buffer)
1700: forth-process-buffer))))
1701: (or proc
1702: (error "No current process. See variable `forth-process-buffer'"))))
1703: ) ; (memq 'comint features)
1.57 dvdkhlng 1704:
1705: (provide 'forth-mode)
1.29 pazsan 1706:
1.48 pazsan 1707: ;;; gforth.el ends here
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