[gforth] / gforth / gforth.el

gforth: gforth/gforth.el

1 :	pazsan	1.48	;;; gforth.el --- major mode for editing (G)Forth sources
2 :	anton	1.31
3 :	dvdkhlng	1.54	;; Copyright (C) 1995,1996,1997,1998,2000,2001 Free Software Foundation, Inc.
4 :	anton	1.31
5 :			;; This file is part of Gforth.
6 :	anton	1.1
7 :	anton	1.17	;; GForth is distributed in the hope that it will be useful,
8 :	anton	1.1	;; 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
17 :	anton	1.17	;; supposed to have been given to you along with Gforth so you
18 :	anton	1.1	;; 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.
21 :	anton	1.31
22 :	pazsan	1.48	;; 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 :
27 :	anton	1.31	;; 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.
32 :	anton	1.1
33 :	pazsan	1.48	;; Changes by David
34 :			;; Added a syntax-hilighting engine, rewrote auto-indentation engine.
35 :			;; Added support for block files.
36 :	dvdkhlng	1.59	;; Tested with Emacs 19.34, 20.5, 21.1 and XEmacs 21.1
37 :	pazsan	1.48
38 :	anton	1.1	;;-------------------------------------------------------------------
39 :			;; A Forth indentation, documentation search and interaction library
40 :			;;-------------------------------------------------------------------
41 :			;;
42 :			;; Written by Goran Rydqvist, gorry@ida.liu.se, Summer 1988
43 :			;; Started: 16 July 88
44 :			;; Version: 2.10
45 :			;; Last update: 5 December 1989 by Mikael Patel, mip@ida.liu.se
46 :			;; Last update: 25 June 1990 by Goran Rydqvist, gorry@ida.liu.se
47 :			;;
48 :			;; Documentation: See forth-mode (^HF forth-mode)
49 :			;;-------------------------------------------------------------------
50 :
51 :	pazsan	1.48	;;; Code:
52 :
53 :	dvdkhlng	1.59	;(setq debug-on-error t)
54 :	dvdkhlng	1.58
55 :	dvdkhlng	1.55	;; Code ripped from `version.el' for compatability with Emacs versions
56 :			;; prior to 19.23.
57 :	dvdkhlng	1.58	(if (not (boundp 'emacs-major-version))
58 :			(defconst emacs-major-version
59 :			(progn (string-match "^[0-9]+" emacs-version)
60 :			(string-to-int (match-string 0 emacs-version)))))
61 :
62 :			(defun forth-emacs-older (major minor)
63 :			(or (< emacs-major-version major)
64 :			(and (= emacs-major-version major) (< emacs-minor-version minor))))
65 :	dvdkhlng	1.55
66 :	dvdkhlng	1.58	;; Code ripped from `subr.el' for compatability with Emacs versions
67 :			;; prior to 20.1
68 :			(eval-when-compile
69 :			(if (forth-emacs-older 20 1)
70 :			(progn
71 :			(defmacro when (cond &rest body)
72 :			"If COND yields non-nil, do BODY, else return nil."
73 :			(list 'if cond (cons 'progn body)))
74 :			(defmacro unless (cond &rest body)
75 :			"If COND yields nil, do BODY, else return nil."
76 :			(cons 'if (cons cond (cons nil body)))))))
77 :
78 :			;; `no-error' argument of require not supported in Emacs versions
79 :			;; prior to 20.4 :-(
80 :			(defun forth-require (feature)
81 :			(condition-case err (require feature) (error nil)))
82 :
83 :			(require 'font-lock)
84 :	pazsan	1.48
85 :	dvdkhlng	1.58	;; define `font-lock-warning-face' in emacs-versions prior to 20.1
86 :			;; (ripped from `font-lock.el')
87 :			(unless (boundp 'font-lock-warning-face)
88 :			(message "defining font-lock-warning-face")
89 :			(make-face 'font-lock-warning-face)
90 :			(defvar font-lock-warning-face 'font-lock-warning-face)
91 :			(set-face-foreground font-lock-warning-face "red")
92 :			(make-face-bold font-lock-warning-face))
93 :
94 :	dvdkhlng	1.59	;; define `font-lock-constant-face' in XEmacs (just copy
95 :			;; `font-lock-preprocessor-face')
96 :			(unless (boundp 'font-lock-constant-face)
97 :	dvdkhlng	1.61	(copy-face font-lock-preprocessor-face 'font-lock-constant-face))
98 :
99 :	dvdkhlng	1.59
100 :	dvdkhlng	1.58	;; define `regexp-opt' in emacs versions prior to 20.1
101 :			;; (this implementation is extremely inefficient, though)
102 :	dvdkhlng	1.59	(eval-and-compile (forth-require 'regexp-opt))
103 :			(unless (memq 'regexp-opt features)
104 :	dvdkhlng	1.58	(message (concat
105 :			"Warning: your Emacs version doesn't support `regexp-opt'. "
106 :			"Hilighting will be slow."))
107 :			(defun regexp-opt (STRINGS &optional PAREN)
108 :			(let ((open (if PAREN "\$" "")) (close (if PAREN "\$" "")))
109 :			(concat open (mapconcat 'regexp-quote STRINGS "\\\|") close)))
110 :			(defun regexp-opt-depth (re)
111 :			(if (string= (substring re 0 2) "\\(") 1 0)))
112 :
113 :	dvdkhlng	1.57	; todo:
114 :			;
115 :
116 :			; Wörter ordentlich hilighten, die nicht auf Whitespace beginnen ( ..)IF
117 :			; -- mit aktueller Konzeption nicht möglich??
118 :			;
119 :			; Konfiguration über customization groups
120 :			;
121 :			; Bereich nur auf Wortanfang/ende ausweiten, wenn Anfang bzw Ende in einem
122 :			; Wort liegen (?) -- speed!
123 :			;
124 :			; 'forth-word' property muss eindeutig sein!
125 :			;
126 :			; Forth-Menu
127 :			;
128 :			; Interface zu GForth Prozessen (Patches von Michael Scholz)
129 :			;
130 :			; Byte-compile-Code rausschmeißen, Compilieren im Makefile über Emacs
131 :			; batch-Modus
132 :			;
133 :			; forth-help Kram rausschmeißen
134 :			;
135 :			; XEmacs Kompatibilität? imenu/speedbar -> fume?
136 :			;
137 :			; Folding neuschreiben (neue Parser-Informationen benutzen)
138 :
139 :	dvdkhlng	1.62	;;; Motion-hooking (dk)
140 :			;;;
141 :			(defun forth-idle-function ()
142 :			"Function that is called when Emacs is idle to detect cursor motion
143 :			in forth-block-mode buffers (which is mainly used for screen number
144 :			display in). Currently ignores forth-mode buffers but that may change
145 :			in the future."
146 :			(if (eq major-mode 'forth-block-mode)
147 :			(forth-check-motion)))
148 :
149 :			(defvar forth-idle-function-timer nil
150 :			"Timer that runs `forth-idle-function' or nil if no timer installed.")
151 :
152 :			(defun forth-install-motion-hook ()
153 :			"Install the motion-hooking mechanism. Currently uses idle timers
154 :			but might be transparently changed in the future."
155 :			(unless forth-idle-function-timer
156 :			;; install idle function only once (first time forth-mode is used)
157 :			(setq forth-idle-function-timer
158 :			(run-with-idle-timer .05 t 'forth-idle-function))))
159 :
160 :			(defvar forth-was-point nil)
161 :
162 :			(defun forth-check-motion ()
163 :			"Run `forth-motion-hooks', if `point' changed since last call. This
164 :			used to be called via `post-command-hook' but uses idle timers now as
165 :			users complaint about lagging performance."
166 :			(when (or (eq forth-was-point nil) (/= forth-was-point (point)))
167 :			(setq forth-was-point (point))
168 :			(run-hooks 'forth-motion-hooks)))
169 :
170 :
171 :			;;; Hilighting and indentation engine (dk)
172 :	pazsan	1.48	;;;
173 :	dvdkhlng	1.55	(defvar forth-disable-parser nil
174 :			"*Non-nil means to disable on-the-fly parsing of Forth-code.
175 :
176 :			This will disable hilighting of forth-mode buffers and will decrease
177 :			the smartness of the indentation engine. Only set it to non-nil, if
178 :			your computer is very slow. To disable hilighting, set
179 :			`forth-hilight-level' to zero.")
180 :
181 :			(defvar forth-jit-parser nil
182 :			"*Non-nil means to parse Forth-code just-in-time.
183 :
184 :			This eliminates the need for initially parsing forth-mode buffers and
185 :			thus speeds up loading of Forth files. That feature is only available
186 :			in Emacs21 (and newer versions).")
187 :
188 :	pazsan	1.48	(defvar forth-words nil
189 :			"List of words for hilighting and recognition of parsed text areas.
190 :	dvdkhlng	1.55
191 :			Hilighting of object-oriented Forth code is achieved, by appending either
192 :			`forth-objects-words' or `forth-oof-words' to the list, depending on the values of `forth-use-objects' or `forth-use-oof'.
193 :
194 :			After `forth-words' changed, `forth-compile-words' must be called to
195 :			make the changes take effect.
196 :	pazsan	1.48
197 :			Each item of `forth-words' has the form
198 :			(MATCHER TYPE HILIGHT . &optional PARSED-TEXT ...)
199 :
200 :			MATCHER is either a list of strings to match, or a REGEXP.
201 :			If it's a REGEXP, it should not be surrounded by '\\<' or '\\>', since
202 :			that'll be done automatically by the search routines.
203 :
204 :			TYPE should be one of 'definiton-starter', 'definition-ender', 'compile-only',
205 :			'immediate' or 'non-immediate'. Those information are required to determine
206 :			whether a word actually parses (and whether that parsed text needs to be
207 :			hilighted).
208 :
209 :			HILIGHT is a cons cell of the form (FACE . MINIMUM-LEVEL)
210 :			Where MINIMUM-LEVEL specifies the minimum value of `forth-hilight-level',
211 :			that's required for matching text to be hilighted.
212 :
213 :			PARSED-TEXT specifies whether and how a word parses following text. You can
214 :			specify as many subsequent PARSED-TEXT as you wish, but that shouldn't be
215 :			necessary very often. It has the following form:
216 :			(DELIM-REGEXP SKIP-LEADING-FLAG PARSED-TYPE HILIGHT)
217 :
218 :			DELIM-REGEXP is a regular expression that should match strings of length 1,
219 :			which are delimiters for the parsed text.
220 :
221 :			A non-nil value for PARSE-LEADING-FLAG means, that leading delimiter strings
222 :			before parsed text should be skipped. This is the parsing behaviour of the
223 :			Forth word WORD. Set it to t for name-parsing words, nil for comments and
224 :			strings.
225 :
226 :			PARSED-TYPE specifies what kind of text is parsed. It should be on of 'name',
227 :			'string' or 'comment'.")
228 :			(setq forth-words
229 :			'(
230 :			(("[") definition-ender (font-lock-keyword-face . 1))
231 :			(("]" "]l") definition-starter (font-lock-keyword-face . 1))
232 :			((":") definition-starter (font-lock-keyword-face . 1)
233 :			"[ \t\n]" t name (font-lock-function-name-face . 3))
234 :			(("immediate" "compile-only" "restrict")
235 :			immediate (font-lock-keyword-face . 1))
236 :			(("does>") compile-only (font-lock-keyword-face . 1))
237 :			((":noname") definition-starter (font-lock-keyword-face . 1))
238 :			((";" ";code") definition-ender (font-lock-keyword-face . 1))
239 :			(("include" "require" "needs" "use")
240 :			non-immediate (font-lock-keyword-face . 1)
241 :			"[\n\t ]" t string (font-lock-string-face . 1))
242 :			(("included" "required" "thru" "load")
243 :			non-immediate (font-lock-keyword-face . 1))
244 :			(("[char]") compile-only (font-lock-keyword-face . 1)
245 :			"[ \t\n]" t string (font-lock-string-face . 1))
246 :			(("char") non-immediate (font-lock-keyword-face . 1)
247 :			"[ \t\n]" t string (font-lock-string-face . 1))
248 :			(("s\"" "c\"") immediate (font-lock-string-face . 1)
249 :			"[\"\n]" nil string (font-lock-string-face . 1))
250 :			((".\"") compile-only (font-lock-string-face . 1)
251 :			"[\"\n]" nil string (font-lock-string-face . 1))
252 :			(("abort\"") compile-only (font-lock-keyword-face . 1)
253 :			"[\"\n]" nil string (font-lock-string-face . 1))
254 :			(("{") compile-only (font-lock-variable-name-face . 1)
255 :			"[\n}]" nil name (font-lock-variable-name-face . 1))
256 :			((".(" "(") immediate (font-lock-comment-face . 1)
257 :			")" nil comment (font-lock-comment-face . 1))
258 :			(("\\" "\\G") immediate (font-lock-comment-face . 1)
259 :			"[\n]" nil comment (font-lock-comment-face . 1))
260 :
261 :			(("[if]" "[?do]" "[do]" "[for]" "[begin]"
262 :			"[endif]" "[then]" "[loop]" "[+loop]" "[next]" "[until]" "[repeat]"
263 :			"[again]" "[while]" "[else]")
264 :			immediate (font-lock-keyword-face . 2))
265 :			(("[ifdef]" "[ifundef]") immediate (font-lock-keyword-face . 2)
266 :			"[ \t\n]" t name (font-lock-function-name-face . 3))
267 :			(("if" "begin" "ahead" "do" "?do" "+do" "u+do" "-do" "u-do" "for"
268 :	anton	1.60	"case" "of" "?dup-if" "?dup-0=-if" "then" "endif" "until"
269 :	pazsan	1.64	"repeat" "again" "leave" "?leave"
270 :	pazsan	1.48	"loop" "+loop" "-loop" "next" "endcase" "endof" "else" "while" "try"
271 :			"recover" "endtry" "assert(" "assert0(" "assert1(" "assert2("
272 :			"assert3(" ")" "<interpretation" "<compilation" "interpretation>"
273 :			"compilation>")
274 :			compile-only (font-lock-keyword-face . 2))
275 :
276 :			(("true" "false" "c/l" "bl" "cell" "pi" "w/o" "r/o" "r/w")
277 :			non-immediate (font-lock-constant-face . 2))
278 :	dvdkhlng	1.56	(("~~" "break:" "dbg") compile-only (font-lock-warning-face . 2))
279 :	dvdkhlng	1.55	(("break\"") compile-only (font-lock-warning-face . 1)
280 :			"[\"\n]" nil string (font-lock-string-face . 1))
281 :	pazsan	1.48	(("postpone" "[is]" "defers" "[']" "[compile]")
282 :			compile-only (font-lock-keyword-face . 2)
283 :			"[ \t\n]" t name (font-lock-function-name-face . 3))
284 :			(("is" "what's") immediate (font-lock-keyword-face . 2)
285 :			"[ \t\n]" t name (font-lock-function-name-face . 3))
286 :	dvdkhlng	1.56	(("<is>" "'" "see") non-immediate (font-lock-keyword-face . 2)
287 :	pazsan	1.48	"[ \t\n]" t name (font-lock-function-name-face . 3))
288 :			(("[to]") compile-only (font-lock-keyword-face . 2)
289 :			"[ \t\n]" t name (font-lock-variable-name-face . 3))
290 :			(("to") immediate (font-lock-keyword-face . 2)
291 :			"[ \t\n]" t name (font-lock-variable-name-face . 3))
292 :			(("<to>") non-immediate (font-lock-keyword-face . 2)
293 :			"[ \t\n]" t name (font-lock-variable-name-face . 3))
294 :
295 :			(("create" "variable" "constant" "2variable" "2constant" "fvariable"
296 :			"fconstant" "value" "field" "user" "vocabulary"
297 :			"create-interpret/compile")
298 :			non-immediate (font-lock-type-face . 2)
299 :			"[ \t\n]" t name (font-lock-variable-name-face . 3))
300 :	dvdkhlng	1.54	("\\S-+%" non-immediate (font-lock-type-face . 2))
301 :	pazsan	1.48	(("defer" "alias" "create-interpret/compile:")
302 :			non-immediate (font-lock-type-face . 1)
303 :			"[ \t\n]" t name (font-lock-function-name-face . 3))
304 :			(("end-struct") non-immediate (font-lock-keyword-face . 2)
305 :			"[ \t\n]" t name (font-lock-type-face . 3))
306 :			(("struct") non-immediate (font-lock-keyword-face . 2))
307 :			("-?[0-9]+\$\\.[0-9]e\\(-?[0-9]+\$?\\\|\\.?[0-9a-f]\\)"
308 :			immediate (font-lock-constant-face . 3))
309 :			))
310 :
311 :	dvdkhlng	1.51	(defvar forth-use-objects nil
312 :			"*Non-nil makes forth-mode also hilight words from the \"Objects\" package.")
313 :	dvdkhlng	1.57	(defvar forth-objects-words
314 :			'(((":m") definition-starter (font-lock-keyword-face . 1)
315 :			"[ \t\n]" t name (font-lock-function-name-face . 3))
316 :			(("m:") definition-starter (font-lock-keyword-face . 1))
317 :			((";m") definition-ender (font-lock-keyword-face . 1))
318 :			(("[current]" "[parent]") compile-only (font-lock-keyword-face . 1)
319 :			"[ \t\n]" t name (font-lock-function-name-face . 3))
320 :			(("current" "overrides") non-immediate (font-lock-keyword-face . 2)
321 :			"[ \t\n]" t name (font-lock-function-name-face . 3))
322 :			(("[to-inst]") compile-only (font-lock-keyword-face . 2)
323 :			"[ \t\n]" t name (font-lock-variable-name-face . 3))
324 :			(("[bind]") compile-only (font-lock-keyword-face . 2)
325 :			"[ \t\n]" t name (font-lock-type-face . 3)
326 :			"[ \t\n]" t name (font-lock-function-name-face . 3))
327 :			(("bind") non-immediate (font-lock-keyword-face . 2)
328 :			"[ \t\n]" t name (font-lock-type-face . 3)
329 :			"[ \t\n]" t name (font-lock-function-name-face . 3))
330 :			(("inst-var" "inst-value") non-immediate (font-lock-type-face . 2)
331 :			"[ \t\n]" t name (font-lock-variable-name-face . 3))
332 :			(("method" "selector")
333 :			non-immediate (font-lock-type-face . 1)
334 :			"[ \t\n]" t name (font-lock-function-name-face . 3))
335 :			(("end-class" "end-interface")
336 :			non-immediate (font-lock-keyword-face . 2)
337 :			"[ \t\n]" t name (font-lock-type-face . 3))
338 :			(("public" "protected" "class" "exitm" "implementation" "interface"
339 :			"methods" "end-methods" "this")
340 :			non-immediate (font-lock-keyword-face . 2))
341 :			(("object") non-immediate (font-lock-type-face . 2)))
342 :	dvdkhlng	1.51	"Hilighting description for words of the \"Objects\" package")
343 :	dvdkhlng	1.57
344 :	pazsan	1.48
345 :	dvdkhlng	1.51	(defvar forth-use-oof nil
346 :			"*Non-nil makes forth-mode also hilight words from the \"OOF\" package.")
347 :	dvdkhlng	1.57	(defvar forth-oof-words
348 :			'((("class") non-immediate (font-lock-keyword-face . 2)
349 :			"[ \t\n]" t name (font-lock-type-face . 3))
350 :			(("var") non-immediate (font-lock-type-face . 2)
351 :			"[ \t\n]" t name (font-lock-variable-name-face . 3))
352 :			(("method" "early") non-immediate (font-lock-type-face . 2)
353 :			"[ \t\n]" t name (font-lock-function-name-face . 3))
354 :			(("::" "super" "bind" "bound" "link")
355 :			immediate (font-lock-keyword-face . 2)
356 :			"[ \t\n]" t name (font-lock-function-name-face . 3))
357 :			(("ptr" "asptr" "[]")
358 :			immediate (font-lock-keyword-face . 2)
359 :			"[ \t\n]" t name (font-lock-variable-name-face . 3))
360 :			(("class;" "how:" "self" "new" "new[]" "definitions" "class?" "with"
361 :			"endwith")
362 :			non-immediate (font-lock-keyword-face . 2))
363 :			(("object") non-immediate (font-lock-type-face . 2)))
364 :	dvdkhlng	1.51	"Hilighting description for words of the \"OOF\" package")
365 :	pazsan	1.48
366 :	dvdkhlng	1.49	(defvar forth-local-words nil
367 :			"List of Forth words to prepend to `forth-words'. Should be set by a
368 :	dvdkhlng	1.51	forth source, using a local variables list at the end of the file
369 :			(\"Local Variables: ... forth-local-words: ... End:\" construct).")
370 :
371 :			(defvar forth-custom-words nil
372 :			"List of Forth words to prepend to `forth-words'. Should be set in your
373 :			.emacs.")
374 :	dvdkhlng	1.49
375 :	pazsan	1.48	(defvar forth-hilight-level 3 "*Level of hilighting of Forth code.")
376 :	dvdkhlng	1.51
377 :	pazsan	1.48	(defvar forth-compiled-words nil "Compiled representation of `forth-words'.")
378 :
379 :	dvdkhlng	1.57	(defvar forth-indent-words nil
380 :			"List of words that have indentation behaviour.
381 :			Each element of `forth-indent-words' should have the form
382 :			(MATCHER INDENT1 INDENT2 &optional TYPE)
383 :
384 :			MATCHER is either a list of strings to match, or a REGEXP.
385 :			If it's a REGEXP, it should not be surrounded by `\\<` or `\\>`, since
386 :			that'll be done automatically by the search routines.
387 :
388 :			TYPE might be omitted. If it's specified, the only allowed value is
389 :			currently the symbol `non-immediate', meaning that the word will not
390 :			have any effect on indentation inside definitions. (:NONAME is a good
391 :			example for this kind of word).
392 :
393 :	anton	1.63	INDENT1 specifies how to indent a word that's located at the beginning
394 :			of a line, following any number of whitespaces.
395 :	dvdkhlng	1.57
396 :	anton	1.63	INDENT2 specifies how to indent words that are not located at the
397 :			beginning of a line.
398 :	dvdkhlng	1.57
399 :			INDENT1 and INDENT2 are indentation specifications of the form
400 :			(SELF-INDENT . NEXT-INDENT), where SELF-INDENT is a numerical value,
401 :			specifying how the matching line and all following lines are to be
402 :			indented, relative to previous lines. NEXT-INDENT specifies how to indent
403 :			following lines, relative to the matching line.
404 :
405 :			Even values of SELF-INDENT and NEXT-INDENT correspond to multiples of
406 :			`forth-indent-level'. Odd values get an additional
407 :			`forth-minor-indent-level' added/substracted. Eg a value of -2 indents
408 :			1 * forth-indent-level to the left, wheras 3 indents
409 :			1 * forth-indent-level + forth-minor-indent-level columns to the right.")
410 :
411 :			(setq forth-indent-words
412 :			'((("if" "begin" "do" "?do" "+do" "-do" "u+do"
413 :			"u-do" "?dup-if" "?dup-0=-if" "case" "of" "try"
414 :			"[if]" "[ifdef]" "[ifundef]" "[begin]" "[for]" "[do]" "[?do]")
415 :			(0 . 2) (0 . 2))
416 :			((":" ":noname" "code" "struct" "m:" ":m" "class" "interface")
417 :			(0 . 2) (0 . 2) non-immediate)
418 :			("\\S-+%$" (0 . 2) (0 . 0) non-immediate)
419 :			((";" ";m") (-2 . 0) (0 . -2))
420 :	anton	1.63	(("again" "then" "endif" "endtry" "endcase" "endof"
421 :	dvdkhlng	1.57	"[then]" "[endif]" "[loop]" "[+loop]" "[next]"
422 :	anton	1.63	"[until]" "[again]" "loop")
423 :	dvdkhlng	1.57	(-2 . 0) (0 . -2))
424 :			(("end-code" "end-class" "end-interface" "end-class-noname"
425 :			"end-interface-noname" "end-struct" "class;")
426 :			(-2 . 0) (0 . -2) non-immediate)
427 :			(("protected" "public" "how:") (-1 . 1) (0 . 0) non-immediate)
428 :			(("+loop" "-loop" "until") (-2 . 0) (-2 . 0))
429 :			(("else" "recover" "[else]") (-2 . 2) (0 . 0))
430 :	anton	1.63	(("does>") (-1 . 1) (0 . 0))
431 :			(("while" "[while]") (-2 . 4) (0 . 2))
432 :			(("repeat" "[repeat]") (-4 . 0) (0 . -4))
433 :	dvdkhlng	1.57	(("\\g") (-2 . 2) (0 . 0))))
434 :
435 :			(defvar forth-local-indent-words nil
436 :			"List of Forth words to prepend to `forth-indent-words', when a forth-mode
437 :			buffer is created. Should be set by a Forth source, using a local variables
438 :			list at the end of the file (\"Local Variables: ... forth-local-words: ...
439 :			End:\" construct).")
440 :	dvdkhlng	1.51
441 :	dvdkhlng	1.57	(defvar forth-custom-indent-words nil
442 :			"List of Forth words to prepend to `forth-indent-words'. Should be set in
443 :			your .emacs.")
444 :	pazsan	1.48
445 :	dvdkhlng	1.57	(defvar forth-indent-level 4
446 :			"*Indentation of Forth statements.")
447 :			(defvar forth-minor-indent-level 2
448 :			"*Minor indentation of Forth statements.")
449 :			(defvar forth-compiled-indent-words nil)
450 :	pazsan	1.48
451 :	dvdkhlng	1.55	;(setq debug-on-error t)
452 :	pazsan	1.48
453 :	dvdkhlng	1.50	;; Filter list by predicate. This is a somewhat standard function for
454 :	pazsan	1.48	;; functional programming languages. So why isn't it already implemented
455 :			;; in Lisp??
456 :	dvdkhlng	1.50	(defun forth-filter (predicate list)
457 :	pazsan	1.48	(let ((filtered nil))
458 :			(mapcar (lambda (item)
459 :	dvdkhlng	1.50	(when (funcall predicate item)
460 :	pazsan	1.48	(if filtered
461 :			(nconc filtered (list item))
462 :			(setq filtered (cons item nil))))
463 :			nil) list)
464 :			filtered))
465 :
466 :			;; Helper function for `forth-compile-word': return whether word has to be
467 :			;; added to the compiled word list, for syntactic parsing and hilighting.
468 :			(defun forth-words-filter (word)
469 :			(let* ((hilight (nth 2 word))
470 :			(level (cdr hilight))
471 :			(parsing-flag (nth 3 word)))
472 :			(or parsing-flag
473 :			(<= level forth-hilight-level))))
474 :
475 :			;; Helper function for `forth-compile-word': translate one entry from
476 :			;; `forth-words' into the form (regexp regexp-depth word-description)
477 :			(defun forth-compile-words-mapper (word)
478 :	dvdkhlng	1.59	;; warning: we cannot rely on regexp-opt's PAREN argument, since
479 :			;; XEmacs will use shy parens by default :-(
480 :	pazsan	1.48	(let* ((matcher (car word))
481 :	dvdkhlng	1.59	(regexp
482 :			(concat "\\(" (cond ((stringp matcher) matcher)
483 :			((listp matcher) (regexp-opt matcher))
484 :			(t (error "Invalid matcher `%s'")))
485 :			"\\)"))
486 :	pazsan	1.48	(depth (regexp-opt-depth regexp))
487 :			(description (cdr word)))
488 :			(list regexp depth description)))
489 :
490 :			;; Read `words' and create a compiled representation suitable for efficient
491 :			;; parsing of the form
492 :			;; (regexp (subexp-count word-description) (subexp-count2 word-description2)
493 :			;; ...)
494 :	dvdkhlng	1.49	(defun forth-compile-wordlist (words)
495 :	pazsan	1.48	(let* ((mapped (mapcar 'forth-compile-words-mapper words))
496 :			(regexp (concat "\\<\\("
497 :			(mapconcat 'car mapped "\\\|")
498 :			"\\)\\>"))
499 :			(sub-count 2)
500 :			(sub-list (mapcar
501 :			(lambda (i)
502 :			(let ((sub (cons sub-count (nth 2 i))))
503 :			(setq sub-count (+ sub-count (nth 1 i)))
504 :			sub
505 :			))
506 :			mapped)))
507 :			(let ((result (cons regexp sub-list)))
508 :			(byte-compile 'result)
509 :			result)))
510 :
511 :	dvdkhlng	1.49	(defun forth-compile-words ()
512 :			"Compile the the words from `forth-words' and `forth-indent-words' into
513 :			the format that's later used for doing the actual hilighting/indentation.
514 :	dvdkhlng	1.51	Store the resulting compiled wordlists in `forth-compiled-words' and
515 :	dvdkhlng	1.49	`forth-compiled-indent-words', respective"
516 :			(setq forth-compiled-words
517 :			(forth-compile-wordlist
518 :			(forth-filter 'forth-words-filter forth-words)))
519 :			(setq forth-compiled-indent-words
520 :			(forth-compile-wordlist forth-indent-words)))
521 :
522 :			(defun forth-hack-local-variables ()
523 :	dvdkhlng	1.51	"Parse and bind local variables, set in the contents of the current
524 :			forth-mode buffer. Prepend `forth-local-words' to `forth-words' and
525 :			`forth-local-indent-words' to `forth-indent-words'."
526 :	dvdkhlng	1.49	(hack-local-variables)
527 :			(setq forth-words (append forth-local-words forth-words))
528 :			(setq forth-indent-words (append forth-local-indent-words
529 :			forth-indent-words)))
530 :
531 :	dvdkhlng	1.51	(defun forth-customize-words ()
532 :			"Add the words from `forth-custom-words' and `forth-custom-indent-words'
533 :			to `forth-words' and `forth-indent-words', respective. Add
534 :			`forth-objects-words' and/or `forth-oof-words' to `forth-words', if
535 :			`forth-use-objects' and/or `forth-use-oof', respective is set."
536 :			(setq forth-words (append forth-custom-words forth-words
537 :			(if forth-use-oof forth-oof-words nil)
538 :			(if forth-use-objects forth-objects-words nil)))
539 :			(setq forth-indent-words (append
540 :			forth-custom-indent-words forth-indent-words)))
541 :
542 :
543 :
544 :	pazsan	1.48	;; get location of first character of previous forth word that's got
545 :			;; properties
546 :			(defun forth-previous-start (pos)
547 :			(let* ((word (get-text-property pos 'forth-word))
548 :			(prev (previous-single-property-change
549 :			(min (point-max) (1+ pos)) 'forth-word
550 :			(current-buffer) (point-min))))
551 :			(if (or (= (point-min) prev) word) prev
552 :			(if (get-text-property (1- prev) 'forth-word)
553 :			(previous-single-property-change
554 :			prev 'forth-word (current-buffer) (point-min))
555 :			(point-min)))))
556 :
557 :			;; Get location of the last character of the current/next forth word that's
558 :			;; got properties, text that's parsed by the word is considered as parts of
559 :			;; the word.
560 :			(defun forth-next-end (pos)
561 :			(let* ((word (get-text-property pos 'forth-word))
562 :			(next (next-single-property-change pos 'forth-word
563 :			(current-buffer) (point-max))))
564 :			(if word next
565 :			(if (get-text-property next 'forth-word)
566 :			(next-single-property-change
567 :			next 'forth-word (current-buffer) (point-max))
568 :			(point-max)))))
569 :
570 :			(defun forth-next-whitespace (pos)
571 :			(save-excursion
572 :			(goto-char pos)
573 :			(skip-syntax-forward "-" (point-max))
574 :			(point)))
575 :			(defun forth-previous-word (pos)
576 :			(save-excursion
577 :			(goto-char pos)
578 :			(re-search-backward "\\<" pos (point-min) 1)
579 :			(point)))
580 :
581 :			;; Delete all properties, used by Forth mode, from `from' to `to'.
582 :			(defun forth-delete-properties (from to)
583 :			(remove-text-properties
584 :	dvdkhlng	1.55	from to '(face nil fontified nil
585 :			forth-parsed nil forth-word nil forth-state nil)))
586 :	pazsan	1.48
587 :			;; Get the index of the branch of the most recently evaluated regular
588 :			;; expression that matched. (used for identifying branches "a\\\|b\\\|c...")
589 :			(defun forth-get-regexp-branch ()
590 :			(let ((count 2))
591 :	dvdkhlng	1.59	(while (not (condition-case err (match-beginning count)
592 :			(args-out-of-range t))) ; XEmacs requires error handling
593 :	pazsan	1.48	(setq count (1+ count)))
594 :			count))
595 :
596 :			;; seek to next forth-word and return its "word-description"
597 :			(defun forth-next-known-forth-word (to)
598 :			(if (<= (point) to)
599 :			(progn
600 :			(let* ((regexp (car forth-compiled-words))
601 :			(pos (re-search-forward regexp to t)))
602 :			(if pos (let ((branch (forth-get-regexp-branch))
603 :			(descr (cdr forth-compiled-words)))
604 :			(goto-char (match-beginning 0))
605 :			(cdr (assoc branch descr)))
606 :			'nil)))
607 :			nil))
608 :
609 :			;; Set properties of forth word at `point', eventually parsing subsequent
610 :			;; words, and parsing all whitespaces. Set point to delimiter after word.
611 :			;; The word, including it's parsed text gets the `forth-word' property, whose
612 :			;; value is unique, and may be used for getting the word's start/end
613 :			;; positions.
614 :			(defun forth-set-word-properties (state data)
615 :			(let* ((start (point))
616 :			(end (progn (re-search-forward "[ \t]\\\|$" (point-max) 1)
617 :			(point)))
618 :			(type (car data))
619 :			(hilight (nth 1 data))
620 :			(bad-word (and (not state) (eq type 'compile-only)))
621 :			(hlface (if bad-word font-lock-warning-face
622 :			(if (<= (cdr hilight) forth-hilight-level)
623 :			(car hilight) nil))))
624 :			(when hlface (put-text-property start end 'face hlface))
625 :			;; if word parses in current state, process parsed range of text
626 :			(when (or (not state) (eq type 'compile-only) (eq type 'immediate))
627 :			(let ((parse-data (nthcdr 2 data)))
628 :			(while parse-data
629 :			(let ((delim (nth 0 parse-data))
630 :			(skip-leading (nth 1 parse-data))
631 :			(parse-type (nth 2 parse-data))
632 :			(parsed-hilight (nth 3 parse-data))
633 :			(parse-start (point))
634 :			(parse-end))
635 :			(when skip-leading
636 :			(while (and (looking-at delim) (> (match-end 0) (point))
637 :			(not (looking-at "\n")))
638 :			(forward-char)))
639 :			(re-search-forward delim (point-max) 1)
640 :			(setq parse-end (point))
641 :			(forth-delete-properties end parse-end)
642 :			(when (<= (cdr parsed-hilight) forth-hilight-level)
643 :			(put-text-property
644 :			parse-start parse-end 'face (car parsed-hilight)))
645 :			(put-text-property
646 :			parse-start parse-end 'forth-parsed parse-type)
647 :			(setq end parse-end)
648 :			(setq parse-data (nthcdr 4 parse-data))))))
649 :			(put-text-property start end 'forth-word start)))
650 :
651 :			;; Search for known Forth words in the range `from' to `to', using
652 :			;; `forth-next-known-forth-word' and set their properties via
653 :			;; `forth-set-word-properties'.
654 :	dvdkhlng	1.51	(defun forth-update-properties (from to &optional loudly)
655 :	pazsan	1.48	(save-excursion
656 :	dvdkhlng	1.51	(let ((msg-count 0) (state) (word-descr) (last-location))
657 :	pazsan	1.48	(goto-char (forth-previous-word (forth-previous-start
658 :			(max (point-min) (1- from)))))
659 :			(setq to (forth-next-end (min (point-max) (1+ to))))
660 :			;; `to' must be on a space delimiter, if a parsing word was changed
661 :			(setq to (forth-next-whitespace to))
662 :			(setq state (get-text-property (point) 'forth-state))
663 :			(setq last-location (point))
664 :			(forth-delete-properties (point) to)
665 :	dvdkhlng	1.55	(put-text-property (point) to 'fontified t)
666 :	pazsan	1.48	;; hilight loop...
667 :			(while (setq word-descr (forth-next-known-forth-word to))
668 :	dvdkhlng	1.51	(when loudly
669 :			(when (equal 0 (% msg-count 100))
670 :			(message "Parsing Forth code...%s"
671 :			(make-string (/ msg-count 100) ?.)))
672 :			(setq msg-count (1+ msg-count)))
673 :	pazsan	1.48	(forth-set-word-properties state word-descr)
674 :			(when state (put-text-property last-location (point) 'forth-state t))
675 :			(let ((type (car word-descr)))
676 :			(if (eq type 'definition-starter) (setq state t))
677 :			(if (eq type 'definition-ender) (setq state nil))
678 :			(setq last-location (point))))
679 :			;; update state property up to `to'
680 :			(if (and state (< (point) to))
681 :			(put-text-property last-location to 'forth-state t))
682 :			;; extend search if following state properties differ from current state
683 :			(if (< to (point-max))
684 :			(if (not (equal state (get-text-property (1+ to) 'forth-state)))
685 :			(let ((extend-to (next-single-property-change
686 :			to 'forth-state (current-buffer) (point-max))))
687 :			(forth-update-properties to extend-to))
688 :			))
689 :			)))
690 :
691 :			;; save-buffer-state borrowed from `font-lock.el'
692 :			(eval-when-compile
693 :			(defmacro forth-save-buffer-state (varlist &rest body)
694 :			"Bind variables according to VARLIST and eval BODY restoring buffer state."
695 :			(` (let* ((,@ (append varlist
696 :			'((modified (buffer-modified-p)) (buffer-undo-list t)
697 :			(inhibit-read-only t) (inhibit-point-motion-hooks t)
698 :			before-change-functions after-change-functions
699 :			deactivate-mark buffer-file-name buffer-file-truename))))
700 :			(,@ body)
701 :			(when (and (not modified) (buffer-modified-p))
702 :			(set-buffer-modified-p nil))))))
703 :
704 :			;; Function that is added to the `change-functions' hook. Calls
705 :			;; `forth-update-properties' and keeps care of disabling undo information
706 :			;; and stuff like that.
707 :	dvdkhlng	1.51	(defun forth-change-function (from to len &optional loudly)
708 :	pazsan	1.48	(save-match-data
709 :	dvdkhlng	1.55	(forth-save-buffer-state
710 :			()
711 :			(unless forth-disable-parser (forth-update-properties from to loudly))
712 :			(forth-update-warn-long-lines))))
713 :
714 :			(defun forth-fontification-function (from)
715 :			"Function to be called from `fontification-functions' of Emacs 21."
716 :			(save-match-data
717 :			(forth-save-buffer-state
718 :			((to (min (point-max) (+ from 100))))
719 :			(unless (or forth-disable-parser (not forth-jit-parser)
720 :			(get-text-property from 'fontified))
721 :			(forth-update-properties from to)))))
722 :	pazsan	1.48
723 :			(eval-when-compile
724 :			(byte-compile 'forth-set-word-properties)
725 :			(byte-compile 'forth-next-known-forth-word)
726 :			(byte-compile 'forth-update-properties)
727 :			(byte-compile 'forth-delete-properties)
728 :			(byte-compile 'forth-get-regexp-branch))
729 :
730 :	dvdkhlng	1.51	;;; imenu support
731 :			;;;
732 :	dvdkhlng	1.52	(defvar forth-defining-words
733 :			'("VARIABLE" "CONSTANT" "2VARIABLE" "2CONSTANT" "FVARIABLE" "FCONSTANT"
734 :			"USER" "VALUE" "field" "end-struct" "VOCABULARY" "CREATE" ":" "CODE"
735 :			"DEFER" "ALIAS")
736 :	dvdkhlng	1.53	"List of words, that define the following word.
737 :	dvdkhlng	1.55	Used for imenu index generation.")
738 :	dvdkhlng	1.52
739 :	dvdkhlng	1.57	(defvar forth-defining-words-regexp nil
740 :			"Regexp that's generated for matching `forth-defining-words'")
741 :	dvdkhlng	1.52
742 :	dvdkhlng	1.51	(defun forth-next-definition-starter ()
743 :			(progn
744 :	dvdkhlng	1.52	(let* ((pos (re-search-forward forth-defining-words-regexp (point-max) t)))
745 :	dvdkhlng	1.51	(if pos
746 :			(if (or (text-property-not-all (match-beginning 0) (match-end 0)
747 :	dvdkhlng	1.52	'forth-parsed nil)
748 :			(text-property-not-all (match-beginning 0) (match-end 0)
749 :			'forth-state nil))
750 :	dvdkhlng	1.51	(forth-next-definition-starter)
751 :			t)
752 :			nil))))
753 :
754 :			(defun forth-create-index ()
755 :	dvdkhlng	1.52	(let* ((forth-defining-words-regexp
756 :			(concat "\\<\$" (regexp-opt forth-defining-words) "\$\\>"))
757 :	dvdkhlng	1.51	(index nil))
758 :			(goto-char (point-min))
759 :			(while (forth-next-definition-starter)
760 :			(if (looking-at "[ \t]*\$[^ \t\n]+\$")
761 :			(setq index (cons (cons (match-string 1) (point)) index))))
762 :			index))
763 :
764 :	dvdkhlng	1.57	;; top-level require is executed at byte-compile and load time
765 :	dvdkhlng	1.58	(eval-and-compile (forth-require 'speedbar))
766 :	dvdkhlng	1.57
767 :			;; this code is executed at load-time only
768 :	dvdkhlng	1.58	(when (memq 'speedbar features)
769 :	dvdkhlng	1.57	(speedbar-add-supported-extension ".fs")
770 :			(speedbar-add-supported-extension ".fb"))
771 :	dvdkhlng	1.51
772 :	pazsan	1.48	;; (require 'profile)
773 :			;; (setq profile-functions-list '(forth-set-word-properties forth-next-known-forth-word forth-update-properties forth-delete-properties forth-get-regexp-branch))
774 :
775 :			;;; Indentation
776 :			;;;
777 :
778 :			;; Return, whether `pos' is the first forth word on its line
779 :			(defun forth-first-word-on-line-p (pos)
780 :			(save-excursion
781 :			(beginning-of-line)
782 :			(skip-chars-forward " \t")
783 :			(= pos (point))))
784 :
785 :			;; Return indentation data (SELF-INDENT . NEXT-INDENT) of next known
786 :			;; indentation word, or nil if there is no word up to `to'.
787 :			;; Position `point' at location just after found word, or at `to'. Parsed
788 :			;; ranges of text will not be taken into consideration!
789 :			(defun forth-next-known-indent-word (to)
790 :			(if (<= (point) to)
791 :			(progn
792 :			(let* ((regexp (car forth-compiled-indent-words))
793 :			(pos (re-search-forward regexp to t)))
794 :			(if pos
795 :	dvdkhlng	1.54	(let* ((start (match-beginning 0))
796 :			(end (match-end 0))
797 :			(branch (forth-get-regexp-branch))
798 :			(descr (cdr forth-compiled-indent-words))
799 :			(indent (cdr (assoc branch descr)))
800 :			(type (nth 2 indent)))
801 :			;; skip words that are parsed (strings/comments) and
802 :			;; non-immediate words inside definitions
803 :			(if (or (text-property-not-all start end 'forth-parsed nil)
804 :			(and (eq type 'non-immediate)
805 :			(text-property-not-all start end
806 :			'forth-state nil)))
807 :			(forth-next-known-indent-word to)
808 :	pazsan	1.48	(if (forth-first-word-on-line-p (match-beginning 0))
809 :			(nth 0 indent) (nth 1 indent))))
810 :			nil)))
811 :			nil))
812 :
813 :			;; Translate indentation value `indent' to indentation column. Multiples of
814 :			;; 2 correspond to multiples of `forth-indent-level'. Odd numbers get an
815 :			;; additional `forth-minor-indent-level' added (or substracted).
816 :			(defun forth-convert-to-column (indent)
817 :			(let* ((sign (if (< indent 0) -1 1))
818 :			(value (abs indent))
819 :			(major (* (/ value 2) forth-indent-level))
820 :			(minor (* (% value 2) forth-minor-indent-level)))
821 :			(* sign (+ major minor))))
822 :
823 :			;; Return the column increment, that the current line of forth code does to
824 :			;; the current or following lines. `which' specifies which indentation values
825 :			;; to use. 0 means the indentation of following lines relative to current
826 :			;; line, 1 means the indentation of the current line relative to the previous
827 :			;; line. Return `nil', if there are no indentation words on the current line.
828 :			(defun forth-get-column-incr (which)
829 :			(save-excursion
830 :			(let ((regexp (car forth-compiled-indent-words))
831 :			(word-indent)
832 :			(self-indent nil)
833 :			(next-indent nil)
834 :			(to (save-excursion (end-of-line) (point))))
835 :			(beginning-of-line)
836 :			(while (setq word-indent (forth-next-known-indent-word to))
837 :			(let* ((self-incr (car word-indent))
838 :			(next-incr (cdr word-indent))
839 :			(self-column-incr (forth-convert-to-column self-incr))
840 :			(next-column-incr (forth-convert-to-column next-incr)))
841 :			(setq next-indent (if next-indent next-indent 0))
842 :			(setq self-indent (if self-indent self-indent 0))
843 :			(if (or (and (> next-indent 0) (< self-column-incr 0))
844 :			(and (< next-indent 0) (> self-column-incr 0)))
845 :			(setq next-indent (+ next-indent self-column-incr))
846 :			(setq self-indent (+ self-indent self-column-incr)))
847 :			(setq next-indent (+ next-indent next-column-incr))))
848 :			(nth which (list self-indent next-indent)))))
849 :
850 :			;; Find previous line that contains indentation words, return the column,
851 :			;; to which following text should be indented to.
852 :			(defun forth-get-anchor-column ()
853 :			(save-excursion
854 :			(if (/= 0 (forward-line -1)) 0
855 :	dvdkhlng	1.54	(let ((indent))
856 :	pazsan	1.48	(while (not (or (setq indent (forth-get-column-incr 1))
857 :			(<= (point) (point-min))))
858 :			(forward-line -1))
859 :			(+ (current-indentation) (if indent indent 0))))))
860 :
861 :			(defun forth-indent-line (&optional flag)
862 :			"Correct indentation of the current Forth line."
863 :			(let* ((anchor (forth-get-anchor-column))
864 :			(column-incr (forth-get-column-incr 0)))
865 :			(forth-indent-to (if column-incr (+ anchor column-incr) anchor))))
866 :
867 :	dvdkhlng	1.49	(defun forth-current-column ()
868 :			(- (point) (save-excursion (beginning-of-line) (point))))
869 :			(defun forth-current-indentation ()
870 :			(- (save-excursion (beginning-of-line) (forward-to-indentation 0) (point))
871 :			(save-excursion (beginning-of-line) (point))))
872 :
873 :	pazsan	1.48	(defun forth-indent-to (x)
874 :			(let ((p nil))
875 :	dvdkhlng	1.49	(setq p (- (forth-current-column) (forth-current-indentation)))
876 :	pazsan	1.48	(forth-delete-indentation)
877 :			(beginning-of-line)
878 :			(indent-to x)
879 :			(if (> p 0) (forward-char p))))
880 :
881 :			(defun forth-delete-indentation ()
882 :			(save-excursion
883 :			(delete-region
884 :			(progn (beginning-of-line) (point))
885 :			(progn (back-to-indentation) (point)))))
886 :
887 :			(defun forth-indent-command ()
888 :			(interactive)
889 :			(forth-indent-line t))
890 :
891 :			;; remove trailing whitespaces in current line
892 :			(defun forth-remove-trailing ()
893 :			(save-excursion
894 :			(end-of-line)
895 :			(delete-region (point) (progn (skip-chars-backward " \t") (point)))))
896 :
897 :			;; insert newline, removing any trailing whitespaces in the current line
898 :			(defun forth-newline-remove-trailing ()
899 :			(save-excursion
900 :	dvdkhlng	1.49	(delete-region (point) (progn (skip-chars-backward " \t") (point))))
901 :			(newline))
902 :			; (let ((was-point (point-marker)))
903 :			; (unwind-protect
904 :			; (progn (forward-line -1) (forth-remove-trailing))
905 :			; (goto-char (was-point)))))
906 :	pazsan	1.48
907 :			;; workaround for bug in `reindent-then-newline-and-indent'
908 :			(defun forth-reindent-then-newline-and-indent ()
909 :			(interactive "*")
910 :			(indent-according-to-mode)
911 :			(forth-newline-remove-trailing)
912 :			(indent-according-to-mode))
913 :
914 :
915 :			;;; Block file encoding/decoding (dk)
916 :			;;;
917 :
918 :			(defconst forth-c/l 64 "Number of characters per block line")
919 :			(defconst forth-l/b 16 "Number of lines per block")
920 :
921 :			;; Check whether the unconverted block file line, point is in, does not
922 :			;; contain `\n' and `\t' characters.
923 :			(defun forth-check-block-line (line)
924 :			(let ((end (save-excursion (beginning-of-line) (forward-char forth-c/l)
925 :			(point))))
926 :			(save-excursion
927 :			(beginning-of-line)
928 :			(when (search-forward "\n" end t)
929 :			(message "Warning: line %i contains newline character #10" line)
930 :			(ding t))
931 :			(beginning-of-line)
932 :			(when (search-forward "\t" end t)
933 :			(message "Warning: line %i contains tab character #8" line)
934 :			(ding t)))))
935 :
936 :			(defun forth-convert-from-block (from to)
937 :			"Convert block file format to stream source in current buffer."
938 :			(let ((line (count-lines (point-min) from)))
939 :			(save-excursion
940 :			(goto-char from)
941 :			(set-mark to)
942 :			(while (< (+ (point) forth-c/l) (mark t))
943 :			(setq line (1+ line))
944 :			(forth-check-block-line line)
945 :			(forward-char forth-c/l)
946 :			(forth-newline-remove-trailing))
947 :			(when (= (+ (point) forth-c/l) (mark t))
948 :			(forth-remove-trailing))
949 :			(mark t))))
950 :
951 :			;; Pad a line of a block file up to `forth-c/l' characters, positioning `point'
952 :			;; at the end of line.
953 :			(defun forth-pad-block-line ()
954 :			(save-excursion
955 :			(end-of-line)
956 :			(if (<= (current-column) forth-c/l)
957 :			(move-to-column forth-c/l t)
958 :			(message "Line %i longer than %i characters, truncated"
959 :			(count-lines (point-min) (point)) forth-c/l)
960 :			(ding t)
961 :			(move-to-column forth-c/l t)
962 :			(delete-region (point) (progn (end-of-line) (point))))))
963 :
964 :			;; Replace tab characters in current line by spaces.
965 :			(defun forth-convert-tabs-in-line ()
966 :			(save-excursion
967 :			(beginning-of-line)
968 :			(while (search-forward "\t" (save-excursion (end-of-line) (point)) t)
969 :			(backward-char)
970 :			(delete-region (point) (1+ (point)))
971 :			(insert-char ?\ (- tab-width (% (current-column) tab-width))))))
972 :
973 :			;; Delete newline at end of current line, concatenating it with the following
974 :			;; line. Place `point' at end of newly formed line.
975 :			(defun forth-delete-newline ()
976 :			(end-of-line)
977 :			(delete-region (point) (progn (beginning-of-line 2) (point))))
978 :
979 :			(defun forth-convert-to-block (from to &optional original-buffer)
980 :			"Convert range of text to block file format in current buffer."
981 :			(let* ((lines 0)) ; I have to count lines myself, since `count-lines' has
982 :			; problems with trailing newlines...
983 :			(save-excursion
984 :			(goto-char from)
985 :			(set-mark to)
986 :			;; pad lines to full length (`forth-c/l' characters per line)
987 :			(while (< (save-excursion (end-of-line) (point)) (mark t))
988 :			(setq lines (1+ lines))
989 :			(forth-pad-block-line)
990 :			(forth-convert-tabs-in-line)
991 :			(forward-line))
992 :			;; also make sure the last line is padded, if `to' is at its end
993 :			(end-of-line)
994 :			(when (= (point) (mark t))
995 :			(setq lines (1+ lines))
996 :			(forth-pad-block-line)
997 :			(forth-convert-tabs-in-line))
998 :			;; remove newlines between lines
999 :			(goto-char from)
1000 :			(while (< (save-excursion (end-of-line) (point)) (mark t))
1001 :			(forth-delete-newline))
1002 :			;; append empty lines, until last block is complete
1003 :			(goto-char (mark t))
1004 :			(let* ((required (* (/ (+ lines (1- forth-l/b)) forth-l/b) forth-l/b))
1005 :			(pad-lines (- required lines)))
1006 :			(while (> pad-lines 0)
1007 :			(insert-char ?\ forth-c/l)
1008 :			(setq pad-lines (1- pad-lines))))
1009 :			(point))))
1010 :
1011 :			(defun forth-detect-block-file-p ()
1012 :			"Return non-nil if the current buffer is in block file format. Detection is
1013 :			done by checking whether the first line has 1024 characters or more."
1014 :			(save-restriction
1015 :			(widen)
1016 :			(save-excursion
1017 :	dvdkhlng	1.54	(goto-char (point-min))
1018 :	pazsan	1.48	(end-of-line)
1019 :			(>= (current-column) 1024))))
1020 :
1021 :			;; add block file conversion routines to `format-alist'
1022 :			(defconst forth-block-format-description
1023 :			'(forth-blocks "Forth block source file" nil
1024 :			forth-convert-from-block forth-convert-to-block
1025 :			t normal-mode))
1026 :			(unless (memq forth-block-format-description format-alist)
1027 :			(setq format-alist (cons forth-block-format-description format-alist)))
1028 :
1029 :			;;; End block file encoding/decoding
1030 :
1031 :			;;; Block file editing
1032 :			;;;
1033 :			(defvar forth-overlay-arrow-string ">>")
1034 :			(defvar forth-block-base 1 "Number of first block in block file")
1035 :			(defvar forth-show-screen nil
1036 :			"Non-nil means to show screen starts and numbers (for block files)")
1037 :			(defvar forth-warn-long-lines nil
1038 :			"Non-nil means to warn about lines that are longer than 64 characters")
1039 :
1040 :			(defvar forth-screen-marker nil)
1041 :	dvdkhlng	1.57	(defvar forth-screen-number-string nil)
1042 :	pazsan	1.48
1043 :			(defun forth-update-show-screen ()
1044 :			"If `forth-show-screen' is non-nil, put overlay arrow to start of screen,
1045 :			`point' is in. If arrow now points to different screen than before, display
1046 :			screen number."
1047 :			(if (not forth-show-screen)
1048 :			(setq overlay-arrow-string nil)
1049 :			(save-excursion
1050 :			(let* ((line (count-lines (point-min) (min (point-max) (1+ (point)))))
1051 :			(first-line (1+ (* (/ (1- line) forth-l/b) forth-l/b)))
1052 :			(scr (+ forth-block-base (/ first-line forth-l/b))))
1053 :			(setq overlay-arrow-string forth-overlay-arrow-string)
1054 :			(goto-line first-line)
1055 :			(setq overlay-arrow-position forth-screen-marker)
1056 :	dvdkhlng	1.50	(set-marker forth-screen-marker
1057 :			(save-excursion (goto-line first-line) (point)))
1058 :			(setq forth-screen-number-string (format "%d" scr))))))
1059 :	pazsan	1.48
1060 :			(add-hook 'forth-motion-hooks 'forth-update-show-screen)
1061 :
1062 :			(defun forth-update-warn-long-lines ()
1063 :			"If `forth-warn-long-lines' is non-nil, display a warning whenever a line
1064 :			exceeds 64 characters."
1065 :			(when forth-warn-long-lines
1066 :			(when (> (save-excursion (end-of-line) (current-column)) forth-c/l)
1067 :			(message "Warning: current line exceeds %i characters"
1068 :			forth-c/l))))
1069 :
1070 :			(add-hook 'forth-motion-hooks 'forth-update-warn-long-lines)
1071 :	dvdkhlng	1.55
1072 :	pazsan	1.48	;;; End block file editing
1073 :	anton	1.1
1074 :	anton	1.6
1075 :	anton	1.1	(defvar forth-mode-abbrev-table nil
1076 :			"Abbrev table in use in Forth-mode buffers.")
1077 :
1078 :			(define-abbrev-table 'forth-mode-abbrev-table ())
1079 :
1080 :			(defvar forth-mode-map nil
1081 :			"Keymap used in Forth mode.")
1082 :
1083 :			(if (not forth-mode-map)
1084 :			(setq forth-mode-map (make-sparse-keymap)))
1085 :
1086 :	anton	1.9	;(define-key forth-mode-map "\M-\C-x" 'compile)
1087 :	anton	1.7	(define-key forth-mode-map "\C-x\\" 'comment-region)
1088 :			(define-key forth-mode-map "\C-x~" 'forth-remove-tracers)
1089 :	anton	1.1	(define-key forth-mode-map "\e\C-m" 'forth-send-paragraph)
1090 :			(define-key forth-mode-map "\eo" 'forth-send-buffer)
1091 :			(define-key forth-mode-map "\C-x\C-m" 'forth-split)
1092 :			(define-key forth-mode-map "\e " 'forth-reload)
1093 :			(define-key forth-mode-map "\t" 'forth-indent-command)
1094 :	pazsan	1.48	(define-key forth-mode-map "\C-m" 'forth-reindent-then-newline-and-indent)
1095 :	anton	1.7	(define-key forth-mode-map "\M-q" 'forth-fill-paragraph)
1096 :	pazsan	1.13	(define-key forth-mode-map "\e." 'forth-find-tag)
1097 :	anton	1.1
1098 :	dvdkhlng	1.61	;; setup for C-h C-i to work
1099 :	dvdkhlng	1.58	(eval-and-compile (forth-require 'info-look))
1100 :			(when (memq 'info-look features)
1101 :	dvdkhlng	1.61	(defvar forth-info-lookup '(symbol (forth-mode "\\S-+" t
1102 :	dvdkhlng	1.59	(("(gforth)Word Index"))
1103 :	dvdkhlng	1.61	"\\S-+")))
1104 :	dvdkhlng	1.59	(unless (memq forth-info-lookup info-lookup-alist)
1105 :	dvdkhlng	1.61	(setq info-lookup-alist (cons forth-info-lookup info-lookup-alist)))
1106 :			;; in X-Emacs C-h C-i is by default bound to Info-query
1107 :			(define-key forth-mode-map "\C-h\C-i" 'info-lookup-symbol))
1108 :
1109 :	dvdkhlng	1.59
1110 :			;; (info-lookup-add-help
1111 :			;; :topic 'symbol
1112 :			;; :mode 'forth-mode
1113 :			;; :regexp "[^
1114 :			;; ]+"
1115 :			;; :ignore-case t
1116 :			;; :doc-spec '(("(gforth)Name Index" nil "`" "' "))))
1117 :	anton	1.35
1118 :	dvdkhlng	1.57	(require 'etags)
1119 :	pazsan	1.13
1120 :			(defun forth-find-tag (tagname &optional next-p regexp-p)
1121 :			(interactive (find-tag-interactive "Find tag: "))
1122 :	dvdkhlng	1.53	(unless (or regexp-p next-p)
1123 :			(setq tagname (concat "\$^\\\|\\s-\$\\(" (regexp-quote tagname)
1124 :			"\\)\$\\s-\\\|$\$")))
1125 :	pazsan	1.13	(switch-to-buffer
1126 :	dvdkhlng	1.53	(find-tag-noselect tagname next-p t)))
1127 :	pazsan	1.13
1128 :	anton	1.1	(defvar forth-mode-syntax-table nil
1129 :			"Syntax table in use in Forth-mode buffers.")
1130 :
1131 :	pazsan	1.48	;; Important: hilighting/indentation now depends on a correct syntax table.
1132 :			;; All characters, except whitespace must belong to the "word constituent"
1133 :			;; syntax class. If different behaviour is required, use of Categories might
1134 :			;; help.
1135 :			(if (not forth-mode-syntax-table)
1136 :	anton	1.1	(progn
1137 :			(setq forth-mode-syntax-table (make-syntax-table))
1138 :	anton	1.6	(let ((char 0))
1139 :			(while (< char ?!)
1140 :			(modify-syntax-entry char " " forth-mode-syntax-table)
1141 :			(setq char (1+ char)))
1142 :			(while (< char 256)
1143 :			(modify-syntax-entry char "w" forth-mode-syntax-table)
1144 :			(setq char (1+ char))))
1145 :			))
1146 :	anton	1.1
1147 :			(defun forth-mode-variables ()
1148 :			(set-syntax-table forth-mode-syntax-table)
1149 :			(setq local-abbrev-table forth-mode-abbrev-table)
1150 :			(make-local-variable 'paragraph-start)
1151 :			(setq paragraph-start (concat "^$\\\|" page-delimiter))
1152 :			(make-local-variable 'paragraph-separate)
1153 :			(setq paragraph-separate paragraph-start)
1154 :			(make-local-variable 'indent-line-function)
1155 :			(setq indent-line-function 'forth-indent-line)
1156 :	anton	1.6	; (make-local-variable 'require-final-newline)
1157 :			; (setq require-final-newline t)
1158 :	anton	1.1	(make-local-variable 'comment-start)
1159 :	anton	1.3	(setq comment-start "\\ ")
1160 :			;(make-local-variable 'comment-end)
1161 :			;(setq comment-end " )")
1162 :	anton	1.1	(make-local-variable 'comment-column)
1163 :			(setq comment-column 40)
1164 :			(make-local-variable 'comment-start-skip)
1165 :	dvdkhlng	1.65	(setq comment-start-skip "\\\\ ")
1166 :	dvdkhlng	1.57	(make-local-variable 'comment-indent-function)
1167 :			(setq comment-indent-function 'forth-comment-indent)
1168 :	anton	1.1	(make-local-variable 'parse-sexp-ignore-comments)
1169 :	pazsan	1.47	(setq parse-sexp-ignore-comments t)
1170 :	pazsan	1.48	(setq case-fold-search t)
1171 :	dvdkhlng	1.55	(make-local-variable 'forth-was-point)
1172 :			(setq forth-was-point -1)
1173 :	pazsan	1.48	(make-local-variable 'forth-words)
1174 :			(make-local-variable 'forth-compiled-words)
1175 :			(make-local-variable 'forth-compiled-indent-words)
1176 :			(make-local-variable 'forth-hilight-level)
1177 :			(make-local-variable 'after-change-functions)
1178 :			(make-local-variable 'forth-show-screen)
1179 :			(make-local-variable 'forth-screen-marker)
1180 :			(make-local-variable 'forth-warn-long-lines)
1181 :	dvdkhlng	1.50	(make-local-variable 'forth-screen-number-string)
1182 :	dvdkhlng	1.51	(make-local-variable 'forth-use-oof)
1183 :			(make-local-variable 'forth-use-objects)
1184 :	pazsan	1.48	(setq forth-screen-marker (copy-marker 0))
1185 :	dvdkhlng	1.51	(add-hook 'after-change-functions 'forth-change-function)
1186 :	dvdkhlng	1.62	(if (and forth-jit-parser (>= emacs-major-version 21))
1187 :	dvdkhlng	1.55	(add-hook 'fontification-functions 'forth-fontification-function))
1188 :	dvdkhlng	1.51	(setq imenu-create-index-function 'forth-create-index))
1189 :	pazsan	1.47
1190 :	anton	1.2	;;;###autoload
1191 :	anton	1.1	(defun forth-mode ()
1192 :			"
1193 :			Major mode for editing Forth code. Tab indents for Forth code. Comments
1194 :	anton	1.9	are delimited with \\ and newline. Paragraphs are separated by blank lines
1195 :	dvdkhlng	1.49	only. Block files are autodetected, when read, and converted to normal
1196 :			stream source format. See also `forth-block-mode'.
1197 :	anton	1.1	\\{forth-mode-map}
1198 :			Forth-split
1199 :			Positions the current buffer on top and a forth-interaction window
1200 :			below. The window size is controlled by the forth-percent-height
1201 :			variable (see below).
1202 :			Forth-reload
1203 :			Reloads the forth library and restarts the forth process.
1204 :			Forth-send-buffer
1205 :			Sends the current buffer, in text representation, as input to the
1206 :			forth process.
1207 :			Forth-send-paragraph
1208 :			Sends the previous or the current paragraph to the forth-process.
1209 :			Note that the cursor only need to be with in the paragraph to be sent.
1210 :	pazsan	1.48	forth-documentation
1211 :	anton	1.1	Search for documentation of forward adjacent to cursor. Note! To use
1212 :			this mode you have to add a line, to your .emacs file, defining the
1213 :			directories to search through for documentation files (se variable
1214 :			forth-help-load-path below) e.g. (setq forth-help-load-path '(nil)).
1215 :
1216 :			Variables controlling interaction and startup
1217 :			forth-percent-height
1218 :			Tells split how high to make the edit portion, in percent of the
1219 :			current screen height.
1220 :			forth-program-name
1221 :			Tells the library which program name to execute in the interation
1222 :			window.
1223 :
1224 :	pazsan	1.48	Variables controlling syntax hilighting/recognition of parsed text:
1225 :			`forth-words'
1226 :			List of words that have a special parsing behaviour and/or should be
1227 :	dvdkhlng	1.51	hilighted. Add custom words by setting forth-custom-words in your
1228 :			.emacs, or by setting forth-local-words, in source-files' local
1229 :			variables lists.
1230 :			forth-use-objects
1231 :	dvdkhlng	1.55	Set this variable to non-nil in your .emacs, or in a local variables
1232 :	dvdkhlng	1.51	list, to hilight and recognize the words from the \"Objects\" package
1233 :			for object-oriented programming.
1234 :			forth-use-oof
1235 :			Same as above, just for the \"OOF\" package.
1236 :			forth-custom-words
1237 :			List of custom Forth words to prepend to `forth-words'. Should be set
1238 :			in your .emacs.
1239 :	dvdkhlng	1.49	forth-local-words
1240 :			List of words to prepend to `forth-words', whenever a forth-mode
1241 :			buffer is created. That variable should be set by Forth sources, using
1242 :			a local variables list at the end of file, to get file-specific
1243 :			hilighting.
1244 :			0 [IF]
1245 :			Local Variables: ...
1246 :			forth-local-words: ...
1247 :			End:
1248 :			[THEN]
1249 :	pazsan	1.48	forth-hilight-level
1250 :			Controls how much syntax hilighting is done. Should be in the range
1251 :	dvdkhlng	1.51	0..3
1252 :	pazsan	1.48
1253 :	anton	1.1	Variables controlling indentation style:
1254 :	pazsan	1.48	`forth-indent-words'
1255 :			List of words that influence indentation.
1256 :	dvdkhlng	1.51	forth-local-indent-words
1257 :	dvdkhlng	1.49	List of words to prepend to `forth-indent-words', similar to
1258 :	dvdkhlng	1.51	forth-local-words. Should be used for specifying file-specific
1259 :	dvdkhlng	1.49	indentation, using a local variables list.
1260 :	dvdkhlng	1.51	forth-custom-indent-words
1261 :			List of words to prepend to `forth-indent-words'. Should be set in your
1262 :			.emacs.
1263 :	anton	1.1	forth-indent-level
1264 :			Indentation increment/decrement of Forth statements.
1265 :	pazsan	1.48	forth-minor-indent-level
1266 :			Minor indentation increment/decrement of Forth statemens.
1267 :	anton	1.1
1268 :	pazsan	1.48	Variables controlling block-file editing:
1269 :	dvdkhlng	1.51	forth-show-screen
1270 :	pazsan	1.48	Non-nil means, that the start of the current screen is marked by an
1271 :	dvdkhlng	1.50	overlay arrow, and screen numbers are displayed in the mode line.
1272 :			This variable is by default nil for `forth-mode' and t for
1273 :			`forth-block-mode'.
1274 :	dvdkhlng	1.51	forth-overlay-arrow-string
1275 :	pazsan	1.48	String to display as the overlay arrow, when `forth-show-screen' is t.
1276 :			Setting this variable to nil disables the overlay arrow.
1277 :	dvdkhlng	1.51	forth-block-base
1278 :	pazsan	1.48	Screen number of the first block in a block file. Defaults to 1.
1279 :	dvdkhlng	1.51	forth-warn-long-lines
1280 :	pazsan	1.48	Non-nil means that a warning message is displayed whenever you edit or
1281 :			move over a line that is longer than 64 characters (the maximum line
1282 :			length that can be stored into a block file). This variable defaults to
1283 :			t for `forth-block-mode' and to nil for `forth-mode'.
1284 :	anton	1.1
1285 :			Variables controling documentation search
1286 :			forth-help-load-path
1287 :			List of directories to search through to find *.doc
1288 :			(forth-help-file-suffix) files. Nil means current default directory.
1289 :			The specified directories must contain at least one .doc file. If it
1290 :			does not and you still want the load-path to scan that directory, create
1291 :			an empty file dummy.doc.
1292 :			forth-help-file-suffix
1293 :			The file names to search for in each directory specified by
1294 :			forth-help-load-path. Defaulted to '*.doc'.
1295 :			"
1296 :			(interactive)
1297 :			(kill-all-local-variables)
1298 :			(use-local-map forth-mode-map)
1299 :			(setq mode-name "Forth")
1300 :			(setq major-mode 'forth-mode)
1301 :	dvdkhlng	1.62	(forth-install-motion-hook)
1302 :	pazsan	1.48	;; convert buffer contents from block file format, if necessary
1303 :			(when (forth-detect-block-file-p)
1304 :			(widen)
1305 :			(message "Converting from Forth block source...")
1306 :			(forth-convert-from-block (point-min) (point-max))
1307 :			(message "Converting from Forth block source...done"))
1308 :			;; if user switched from forth-block-mode to forth-mode, make sure the file
1309 :			;; is now stored as normal strem source
1310 :			(when (equal buffer-file-format '(forth-blocks))
1311 :			(setq buffer-file-format nil))
1312 :	anton	1.1	(forth-mode-variables)
1313 :			; (if (not (forth-process-running-p))
1314 :			; (run-forth forth-program-name))
1315 :	dvdkhlng	1.49	(run-hooks 'forth-mode-hook))
1316 :	pazsan	1.48
1317 :	dvdkhlng	1.50	;;;###autoload
1318 :	pazsan	1.48	(define-derived-mode forth-block-mode forth-mode "Forth Block Source"
1319 :			"Major mode for editing Forth block source files, derived from
1320 :			`forth-mode'. Differences to `forth-mode' are:
1321 :			* files are converted to block format, when written (`buffer-file-format'
1322 :			is set to `(forth-blocks)')
1323 :			* `forth-show-screen' and `forth-warn-long-lines' are t by default
1324 :
1325 :			Note that the length of lines in block files is limited to 64 characters.
1326 :			When writing longer lines to a block file, a warning is displayed in the
1327 :			echo area and the line is truncated.
1328 :
1329 :			Another problem is imposed by block files that contain newline or tab
1330 :			characters. When Emacs converts such files back to block file format,
1331 :	dvdkhlng	1.50	it'll translate those characters to a number of spaces. However, when
1332 :	pazsan	1.48	you read such a file, a warning message is displayed in the echo area,
1333 :			including a line number that may help you to locate and fix the problem.
1334 :
1335 :			So have a look at the Messages buffer, whenever you hear (or see) Emacs'
1336 :			bell during block file read/write operations."
1337 :			(setq buffer-file-format '(forth-blocks))
1338 :			(setq forth-show-screen t)
1339 :	dvdkhlng	1.50	(setq forth-warn-long-lines t)
1340 :			(setq forth-screen-number-string (format "%d" forth-block-base))
1341 :			(setq mode-line-format (append (reverse (cdr (reverse mode-line-format)))
1342 :			'("--S" forth-screen-number-string "-%-"))))
1343 :	anton	1.1
1344 :	anton	1.44	(add-hook 'forth-mode-hook
1345 :	anton	1.9	'(lambda ()
1346 :			(make-local-variable 'compile-command)
1347 :	dvdkhlng	1.49	(setq compile-command "gforth ")
1348 :			(forth-hack-local-variables)
1349 :	dvdkhlng	1.51	(forth-customize-words)
1350 :	dvdkhlng	1.49	(forth-compile-words)
1351 :	dvdkhlng	1.55	(unless (and forth-jit-parser (>= emacs-major-version 21))
1352 :			(forth-change-function (point-min) (point-max) nil t))))
1353 :	anton	1.6
1354 :	anton	1.7	(defun forth-fill-paragraph ()
1355 :			"Fill comments (starting with '\'; do not fill code (block style
1356 :			programmers who tend to fill code won't use emacs anyway:-)."
1357 :	anton	1.9	; Currently only comments at the start of the line are filled.
1358 :			; Something like lisp-fill-paragraph may be better. We cannot use
1359 :			; fill-paragraph, because it removes the \ from the first comment
1360 :			; line. Therefore we have to look for the first line of the comment
1361 :			; and use fill-region.
1362 :	anton	1.7	(interactive)
1363 :			(save-excursion
1364 :			(beginning-of-line)
1365 :	anton	1.9	(while (and
1366 :			(= (forward-line -1) 0)
1367 :	anton	1.14	(looking-at "[ \t]*\\\\g?[ \t]+")))
1368 :			(if (not (looking-at "[ \t]*\\\\g?[ \t]+"))
1369 :	anton	1.9	(forward-line 1))
1370 :			(let ((from (point))
1371 :			(to (save-excursion (forward-paragraph) (point))))
1372 :	anton	1.14	(if (looking-at "[ \t]*\\\\g?[ \t]+")
1373 :	anton	1.9	(progn (goto-char (match-end 0))
1374 :			(set-fill-prefix)
1375 :			(fill-region from to nil))))))
1376 :	anton	1.7
1377 :	anton	1.1	(defun forth-comment-indent ()
1378 :			(save-excursion
1379 :			(beginning-of-line)
1380 :			(if (looking-at ":[ \t]*")
1381 :			(progn
1382 :			(end-of-line)
1383 :			(skip-chars-backward " \t\n")
1384 :			(1+ (current-column)))
1385 :			comment-column)))
1386 :
1387 :
1388 :			;; Forth commands
1389 :
1390 :	anton	1.7	(defun forth-remove-tracers ()
1391 :			"Remove tracers of the form `~~ '. Queries the user for each occurrence."
1392 :			(interactive)
1393 :	anton	1.16	(query-replace-regexp "\$~~ \\\| ~~$\$" "" nil))
1394 :	anton	1.7
1395 :	anton	1.5	(defvar forth-program-name "gforth"
1396 :	anton	1.1	"*Program invoked by the `run-forth' command.")
1397 :
1398 :			(defvar forth-band-name nil
1399 :			"*Band loaded by the `run-forth' command.")
1400 :
1401 :			(defvar forth-program-arguments nil
1402 :			"*Arguments passed to the Forth program by the `run-forth' command.")
1403 :
1404 :			(defun run-forth (command-line)
1405 :			"Run an inferior Forth process. Output goes to the buffer `forth'.
1406 :			With argument, asks for a command line. Split up screen and run forth
1407 :			in the lower portion. The current-buffer when called will stay in the
1408 :			upper portion of the screen, and all other windows are deleted.
1409 :			Call run-forth again to make the forth buffer appear in the lower
1410 :			part of the screen."
1411 :			(interactive
1412 :			(list (let ((default
1413 :			(or forth-process-command-line
1414 :			(forth-default-command-line))))
1415 :			(if current-prefix-arg
1416 :			(read-string "Run Forth: " default)
1417 :			default))))
1418 :			(setq forth-process-command-line command-line)
1419 :			(forth-start-process command-line)
1420 :			(forth-split)
1421 :			(forth-set-runlight forth-runlight:input))
1422 :
1423 :	anton	1.28	(defun run-forth-if-not ()
1424 :			(if (not (forth-process-running-p))
1425 :			(run-forth forth-program-name)))
1426 :
1427 :	anton	1.1	(defun reset-forth ()
1428 :			"Reset the Forth process."
1429 :			(interactive)
1430 :			(let ((process (get-process forth-program-name)))
1431 :			(cond ((or (not process)
1432 :			(not (eq (process-status process) 'run))
1433 :			(yes-or-no-p
1434 :			"The Forth process is running, are you SURE you want to reset it? "))
1435 :			(message "Resetting Forth process...")
1436 :			(forth-reload)
1437 :			(message "Resetting Forth process...done")))))
1438 :
1439 :			(defun forth-default-command-line ()
1440 :	pazsan	1.13	(concat forth-program-name
1441 :	anton	1.1	(if forth-program-arguments
1442 :			(concat " " forth-program-arguments)
1443 :			"")))
1444 :
1445 :			;;;; Internal Variables
1446 :
1447 :			(defvar forth-process-command-line nil
1448 :			"Command used to start the most recent Forth process.")
1449 :
1450 :			(defvar forth-previous-send ""
1451 :			"Most recent expression transmitted to the Forth process.")
1452 :
1453 :			(defvar forth-process-filter-queue '()
1454 :			"Queue used to synchronize filter actions properly.")
1455 :
1456 :			(defvar forth-prompt "ok"
1457 :			"The current forth prompt string.")
1458 :
1459 :			(defvar forth-start-hook nil
1460 :			"If non-nil, a procedure to call when the Forth process is started.
1461 :			When called, the current buffer will be the Forth process-buffer.")
1462 :
1463 :			(defvar forth-signal-death-message nil
1464 :			"If non-nil, causes a message to be generated when the Forth process dies.")
1465 :
1466 :	anton	1.9	(defvar forth-percent-height 50
1467 :	anton	1.1	"Tells run-forth how high the upper window should be in percent.")
1468 :
1469 :			(defconst forth-runlight:input ?I
1470 :			"The character displayed when the Forth process is waiting for input.")
1471 :
1472 :			(defvar forth-mode-string ""
1473 :			"String displayed in the mode line when the Forth process is running.")
1474 :
1475 :			;;;; Evaluation Commands
1476 :
1477 :			(defun forth-send-string (&rest strings)
1478 :			"Send the string arguments to the Forth process.
1479 :			The strings are concatenated and terminated by a newline."
1480 :			(cond ((forth-process-running-p)
1481 :			(forth-send-string-1 strings))
1482 :			((yes-or-no-p "The Forth process has died. Reset it? ")
1483 :			(reset-forth)
1484 :			(goto-char (point-max))
1485 :			(forth-send-string-1 strings))))
1486 :
1487 :			(defun forth-send-string-1 (strings)
1488 :			(let ((string (apply 'concat strings)))
1489 :			(forth-send-string-2 string)))
1490 :
1491 :			(defun forth-send-string-2 (string)
1492 :			(let ((process (get-process forth-program-name)))
1493 :			(if (not (eq (current-buffer) (get-buffer forth-program-name)))
1494 :			(progn
1495 :			(forth-process-filter-output string)
1496 :			(forth-process-filter:finish)))
1497 :			(send-string process (concat string "\n"))
1498 :			(if (eq (current-buffer) (process-buffer process))
1499 :			(set-marker (process-mark process) (point)))))
1500 :
1501 :
1502 :			(defun forth-send-region (start end)
1503 :			"Send the current region to the Forth process.
1504 :			The region is sent terminated by a newline."
1505 :			(interactive "r")
1506 :			(let ((process (get-process forth-program-name)))
1507 :			(if (and process (eq (current-buffer) (process-buffer process)))
1508 :			(progn (goto-char end)
1509 :			(set-marker (process-mark process) end))))
1510 :			(forth-send-string "\n" (buffer-substring start end) "\n"))
1511 :
1512 :			(defun forth-end-of-paragraph ()
1513 :			(if (looking-at "[\t\n ]+") (skip-chars-backward "\t\n "))
1514 :			(if (not (re-search-forward "\n[ \t]*\n" nil t))
1515 :			(goto-char (point-max))))
1516 :
1517 :			(defun forth-send-paragraph ()
1518 :			"Send the current or the previous paragraph to the Forth process"
1519 :			(interactive)
1520 :			(let (end)
1521 :			(save-excursion
1522 :			(forth-end-of-paragraph)
1523 :			(skip-chars-backward "\t\n ")
1524 :			(setq end (point))
1525 :			(if (re-search-backward "\n[ \t]*\n" nil t)
1526 :			(setq start (point))
1527 :			(goto-char (point-min)))
1528 :			(skip-chars-forward "\t\n ")
1529 :			(forth-send-region (point) end))))
1530 :
1531 :			(defun forth-send-buffer ()
1532 :			"Send the current buffer to the Forth process."
1533 :			(interactive)
1534 :			(if (eq (current-buffer) (forth-process-buffer))
1535 :			(error "Not allowed to send this buffer's contents to Forth"))
1536 :			(forth-send-region (point-min) (point-max)))
1537 :
1538 :
1539 :			;;;; Basic Process Control
1540 :
1541 :			(defun forth-start-process (command-line)
1542 :			(let ((buffer (get-buffer-create "forth")))
1543 :			(let ((process (get-buffer-process buffer)))
1544 :			(save-excursion
1545 :			(set-buffer buffer)
1546 :			(progn (if process (delete-process process))
1547 :			(goto-char (point-max))
1548 :			(setq mode-line-process '(": %s"))
1549 :			(add-to-global-mode-string 'forth-mode-string)
1550 :			(setq process
1551 :			(apply 'start-process
1552 :			(cons forth-program-name
1553 :			(cons buffer
1554 :			(forth-parse-command-line
1555 :			command-line)))))
1556 :			(set-marker (process-mark process) (point-max))
1557 :			(forth-process-filter-initialize t)
1558 :			(forth-modeline-initialize)
1559 :			(set-process-sentinel process 'forth-process-sentinel)
1560 :			(set-process-filter process 'forth-process-filter)
1561 :			(run-hooks 'forth-start-hook)))
1562 :			buffer)))
1563 :
1564 :			(defun forth-parse-command-line (string)
1565 :			(setq string (substitute-in-file-name string))
1566 :			(let ((start 0)
1567 :			(result '()))
1568 :			(while start
1569 :			(let ((index (string-match "[ \t]" string start)))
1570 :			(setq start
1571 :			(cond ((not index)
1572 :			(setq result
1573 :			(cons (substring string start)
1574 :			result))
1575 :			nil)
1576 :			((= index start)
1577 :			(string-match "[^ \t]" string start))
1578 :			(t
1579 :			(setq result
1580 :			(cons (substring string start index)
1581 :			result))
1582 :			(1+ index))))))
1583 :			(nreverse result)))
1584 :
1585 :
1586 :			(defun forth-process-running-p ()
1587 :			"True iff there is a Forth process whose status is `run'."
1588 :			(let ((process (get-process forth-program-name)))
1589 :			(and process
1590 :			(eq (process-status process) 'run))))
1591 :
1592 :			(defun forth-process-buffer ()
1593 :			(let ((process (get-process forth-program-name)))
1594 :			(and process (process-buffer process))))
1595 :
1596 :			;;;; Process Filter
1597 :
1598 :			(defun forth-process-sentinel (proc reason)
1599 :			(let ((inhibit-quit nil))
1600 :			(forth-process-filter-initialize (eq reason 'run))
1601 :			(if (eq reason 'run)
1602 :			(forth-modeline-initialize)
1603 :			(setq forth-mode-string "")))
1604 :			(if (and (not (memq reason '(run stop)))
1605 :			forth-signal-death-message)
1606 :			(progn (beep)
1607 :			(message
1608 :			"The Forth process has died! Do M-x reset-forth to restart it"))))
1609 :
1610 :			(defun forth-process-filter-initialize (running-p)
1611 :			(setq forth-process-filter-queue (cons '() '()))
1612 :			(setq forth-prompt "ok"))
1613 :
1614 :
1615 :			(defun forth-process-filter (proc string)
1616 :			(forth-process-filter-output string)
1617 :			(forth-process-filter:finish))
1618 :
1619 :			(defun forth-process-filter:enqueue (action)
1620 :			(let ((next (cons action '())))
1621 :			(if (cdr forth-process-filter-queue)
1622 :			(setcdr (cdr forth-process-filter-queue) next)
1623 :			(setcar forth-process-filter-queue next))
1624 :			(setcdr forth-process-filter-queue next)))
1625 :
1626 :			(defun forth-process-filter:finish ()
1627 :			(while (car forth-process-filter-queue)
1628 :			(let ((next (car forth-process-filter-queue)))
1629 :			(setcar forth-process-filter-queue (cdr next))
1630 :			(if (not (cdr next))
1631 :			(setcdr forth-process-filter-queue '()))
1632 :			(apply (car (car next)) (cdr (car next))))))
1633 :
1634 :			;;;; Process Filter Output
1635 :
1636 :			(defun forth-process-filter-output (&rest args)
1637 :			(if (not (and args
1638 :			(null (cdr args))
1639 :			(stringp (car args))
1640 :			(string-equal "" (car args))))
1641 :			(forth-process-filter:enqueue
1642 :			(cons 'forth-process-filter-output-1 args))))
1643 :
1644 :			(defun forth-process-filter-output-1 (&rest args)
1645 :			(save-excursion
1646 :			(forth-goto-output-point)
1647 :			(apply 'insert-before-markers args)))
1648 :
1649 :			(defun forth-guarantee-newlines (n)
1650 :			(save-excursion
1651 :			(forth-goto-output-point)
1652 :			(let ((stop nil))
1653 :			(while (and (not stop)
1654 :			(bolp))
1655 :			(setq n (1- n))
1656 :			(if (bobp)
1657 :			(setq stop t)
1658 :			(backward-char))))
1659 :			(forth-goto-output-point)
1660 :			(while (> n 0)
1661 :			(insert-before-markers ?\n)
1662 :			(setq n (1- n)))))
1663 :
1664 :			(defun forth-goto-output-point ()
1665 :			(let ((process (get-process forth-program-name)))
1666 :			(set-buffer (process-buffer process))
1667 :			(goto-char (process-mark process))))
1668 :
1669 :			(defun forth-modeline-initialize ()
1670 :			(setq forth-mode-string " "))
1671 :
1672 :			(defun forth-set-runlight (runlight)
1673 :			(aset forth-mode-string 0 runlight)
1674 :			(forth-modeline-redisplay))
1675 :
1676 :			(defun forth-modeline-redisplay ()
1677 :			(save-excursion (set-buffer (other-buffer)))
1678 :			(set-buffer-modified-p (buffer-modified-p))
1679 :			(sit-for 0))
1680 :
1681 :			;;;; Process Filter Operations
1682 :
1683 :			(defun add-to-global-mode-string (x)
1684 :			(cond ((null global-mode-string)
1685 :			(setq global-mode-string (list "" x " ")))
1686 :			((not (memq x global-mode-string))
1687 :			(setq global-mode-string
1688 :			(cons ""
1689 :			(cons x
1690 :			(cons " "
1691 :			(if (equal "" (car global-mode-string))
1692 :			(cdr global-mode-string)
1693 :			global-mode-string))))))))
1694 :
1695 :
1696 :			;; Misc
1697 :
1698 :			(setq auto-mode-alist (append auto-mode-alist
1699 :	pazsan	1.4	'(("\\.fs$" . forth-mode))))
1700 :	anton	1.1
1701 :			(defun forth-split ()
1702 :			(interactive)
1703 :			(forth-split-1 "forth"))
1704 :
1705 :			(defun forth-split-1 (buffer)
1706 :			(if (not (eq (window-buffer) (get-buffer buffer)))
1707 :			(progn
1708 :			(delete-other-windows)
1709 :			(split-window-vertically
1710 :			(/ (* (screen-height) forth-percent-height) 100))
1711 :			(other-window 1)
1712 :			(switch-to-buffer buffer)
1713 :			(goto-char (point-max))
1714 :			(other-window 1))))
1715 :
1716 :			(defun forth-reload ()
1717 :			(interactive)
1718 :			(let ((process (get-process forth-program-name)))
1719 :			(if process (kill-process process t)))
1720 :	anton	1.28	(sleep-for 0 100)
1721 :	anton	1.1	(forth-mode))
1722 :
1723 :
1724 :			;; Special section for forth-help
1725 :
1726 :			(defvar forth-help-buffer "Forth-help"
1727 :			"Buffer used to display the requested documentation.")
1728 :
1729 :			(defvar forth-help-load-path nil
1730 :			"List of directories to search through to find *.doc
1731 :			(forth-help-file-suffix) files. Nil means current default directory.
1732 :			The specified directories must contain at least one .doc file. If it
1733 :			does not and you still want the load-path to scan that directory, create
1734 :			an empty file dummy.doc.")
1735 :
1736 :			(defvar forth-help-file-suffix "*.doc"
1737 :			"The file names to search for in each directory.")
1738 :
1739 :			(setq forth-search-command-prefix "grep -n \"^ [^(]* ")
1740 :			(defvar forth-search-command-suffix "/dev/null")
1741 :			(defvar forth-grep-error-regexp ": No such file or directory")
1742 :
1743 :			(defun forth-function-called-at-point ()
1744 :			"Return the space delimited word a point."
1745 :			(save-excursion
1746 :			(save-restriction
1747 :			(narrow-to-region (max (point-min) (- (point) 1000)) (point-max))
1748 :			(skip-chars-backward "^ \t\n" (point-min))
1749 :			(if (looking-at "[ \t\n]")
1750 :			(forward-char 1))
1751 :			(let (obj (p (point)))
1752 :			(skip-chars-forward "^ \t\n")
1753 :			(buffer-substring p (point))))))
1754 :
1755 :			(defun forth-help-names-extend-comp (path-list result)
1756 :			(cond ((null path-list) result)
1757 :			((null (car path-list))
1758 :			(forth-help-names-extend-comp (cdr path-list)
1759 :			(concat result forth-help-file-suffix " ")))
1760 :			(t (forth-help-names-extend-comp
1761 :			(cdr path-list) (concat result
1762 :			(expand-file-name (car path-list)) "/"
1763 :			forth-help-file-suffix " ")))))
1764 :
1765 :			(defun forth-help-names-extended ()
1766 :			(if forth-help-load-path
1767 :			(forth-help-names-extend-comp forth-help-load-path "")
1768 :			(error "forth-help-load-path not specified")))
1769 :
1770 :
1771 :	anton	1.7	;(define-key forth-mode-map "\C-hf" 'forth-documentation)
1772 :	anton	1.1
1773 :			(defun forth-documentation (function)
1774 :			"Display the full documentation of FORTH word."
1775 :			(interactive
1776 :			(let ((fn (forth-function-called-at-point))
1777 :			(enable-recursive-minibuffers t)
1778 :			search-list
1779 :			val)
1780 :			(setq val (read-string (format "Describe forth word (default %s): " fn)))
1781 :			(list (if (equal val "") fn val))))
1782 :			(forth-get-doc (concat forth-search-command-prefix
1783 :			(grep-regexp-quote (concat function " ("))
1784 :			"[^)]*\-\-\" " (forth-help-names-extended)
1785 :			forth-search-command-suffix))
1786 :			(message "C-x C-m switches back to the forth interaction window"))
1787 :
1788 :			(defun forth-get-doc (command)
1789 :			"Display the full documentation of command."
1790 :			(let ((curwin (get-buffer-window (window-buffer)))
1791 :			reswin
1792 :			pointmax)
1793 :			(with-output-to-temp-buffer forth-help-buffer
1794 :			(progn
1795 :			(call-process "sh" nil forth-help-buffer t "-c" command)
1796 :			(setq reswin (get-buffer-window forth-help-buffer))))
1797 :			(setq reswin (get-buffer-window forth-help-buffer))
1798 :			(select-window reswin)
1799 :			(save-excursion
1800 :			(goto-char (setq pointmax (point-max)))
1801 :			(insert "--------------------\n\n"))
1802 :			(let (fd doc)
1803 :			(while (setq fd (forth-get-file-data pointmax))
1804 :			(setq doc (forth-get-doc-string fd))
1805 :			(save-excursion
1806 :			(goto-char (point-max))
1807 :			(insert (substring (car fd) (string-match "[^/]*$" (car fd)))
1808 :			":\n\n" doc "\n")))
1809 :			(if (not doc)
1810 :			(progn (goto-char (point-max)) (insert "Not found"))))
1811 :			(select-window curwin)))
1812 :
1813 :			(defun forth-skip-error-lines ()
1814 :			(let ((lines 0))
1815 :			(save-excursion
1816 :			(while (re-search-forward forth-grep-error-regexp nil t)
1817 :			(beginning-of-line)
1818 :			(forward-line 1)
1819 :			(setq lines (1+ lines))))
1820 :			(forward-line lines)))
1821 :
1822 :			(defun forth-get-doc-string (fd)
1823 :			"Find file (car fd) and extract documentation from line (nth 1 fd)."
1824 :			(let (result)
1825 :			(save-window-excursion
1826 :			(find-file (car fd))
1827 :			(goto-line (nth 1 fd))
1828 :			(if (not (eq (nth 1 fd) (1+ (count-lines (point-min) (point)))))
1829 :			(error "forth-get-doc-string: serious error"))
1830 :			(if (not (re-search-backward "\n[\t ]*\n" nil t))
1831 :			(goto-char (point-min))
1832 :			(goto-char (match-end 0)))
1833 :			(let ((p (point)))
1834 :			(if (not (re-search-forward "\n[\t ]*\n" nil t))
1835 :			(goto-char (point-max)))
1836 :			(setq result (buffer-substring p (point))))
1837 :			(bury-buffer (current-buffer)))
1838 :			result))
1839 :
1840 :			(defun forth-get-file-data (limit)
1841 :			"Parse grep output and return '(filename line#) list. Return nil when
1842 :			passing limit."
1843 :			(forth-skip-error-lines)
1844 :			(if (< (point) limit)
1845 :			(let ((result (forth-get-file-data-cont limit)))
1846 :			(forward-line 1)
1847 :			(beginning-of-line)
1848 :			result)))
1849 :
1850 :			(defun forth-get-file-data-cont (limit)
1851 :			(let (result)
1852 :			(let ((p (point)))
1853 :			(skip-chars-forward "^:")
1854 :			(setq result (buffer-substring p (point))))
1855 :			(if (< (point) limit)
1856 :			(let ((p (1+ (point))))
1857 :			(forward-char 1)
1858 :			(skip-chars-forward "^:")
1859 :			(list result (string-to-int (buffer-substring p (point))))))))
1860 :
1861 :			(defun grep-regexp-quote (str)
1862 :			(let ((i 0) (m 1) (res ""))
1863 :			(while (/= m 0)
1864 :			(setq m (string-to-char (substring str i)))
1865 :			(if (/= m 0)
1866 :			(progn
1867 :			(setq i (1+ i))
1868 :			(if (string-match (regexp-quote (char-to-string m))
1869 :			".*\\^$[]")
1870 :			(setq res (concat res "\\")))
1871 :			(setq res (concat res (char-to-string m))))))
1872 :			res))
1873 :
1874 :
1875 :	anton	1.9	(define-key forth-mode-map "\C-x\C-e" 'compile)
1876 :	anton	1.1	(define-key forth-mode-map "\C-x\C-n" 'next-error)
1877 :	dvdkhlng	1.57	(require 'compile)
1878 :	anton	1.1
1879 :	anton	1.6	(defvar forth-compile-command "gforth ")
1880 :	anton	1.9	;(defvar forth-compilation-window-percent-height 30)
1881 :	anton	1.1
1882 :			(defun forth-compile (command)
1883 :			(interactive (list (setq forth-compile-command (read-string "Compile command: " forth-compile-command))))
1884 :			(forth-split-1 "compilation")
1885 :			(setq ctools-compile-command command)
1886 :			(compile1 ctools-compile-command "No more errors"))
1887 :
1888 :
1889 :	pazsan	1.12	;;; Forth menu
1890 :			;;; Mikael Karlsson <qramika@eras70.ericsson.se>
1891 :
1892 :	dvdkhlng	1.61	;; (dk) code commented out due to complaints of XEmacs users. After
1893 :			;; all, there's imenu/speedbar, which uses much smarter scanning
1894 :			;; rules.
1895 :
1896 :			;; (cond ((string-match "XEmacs\\\|Lucid" emacs-version)
1897 :			;; (require 'func-menu)
1898 :
1899 :			;; (defconst fume-function-name-regexp-forth
1900 :			;; "^\$:\$[ \t]+\$[^ \t]*\$"
1901 :			;; "Expression to get word definitions in Forth.")
1902 :
1903 :			;; (setq fume-function-name-regexp-alist
1904 :			;; (append '((forth-mode . fume-function-name-regexp-forth)
1905 :			;; ) fume-function-name-regexp-alist))
1906 :
1907 :			;; ;; Find next forth word in the buffer
1908 :			;; (defun fume-find-next-forth-function-name (buffer)
1909 :			;; "Searches for the next forth word in BUFFER."
1910 :			;; (set-buffer buffer)
1911 :			;; (if (re-search-forward fume-function-name-regexp nil t)
1912 :			;; (let ((beg (match-beginning 2))
1913 :			;; (end (match-end 2)))
1914 :			;; (cons (buffer-substring beg end) beg))))
1915 :	pazsan	1.12
1916 :	dvdkhlng	1.61	;; (setq fume-find-function-name-method-alist
1917 :			;; (append '((forth-mode . fume-find-next-forth-function-name))))
1918 :	pazsan	1.12
1919 :	dvdkhlng	1.61	;; ))
1920 :	pazsan	1.12	;;; End Forth menu
1921 :
1922 :			;;; File folding of forth-files
1923 :			;;; uses outline
1924 :			;;; Toggle activation with M-x fold-f (when editing a forth-file)
1925 :			;;; Use f9 to expand, f10 to hide, Or the menubar in xemacs
1926 :			;;;
1927 :			;;; Works most of the times but loses sync with the cursor occasionally
1928 :			;;; Could be improved by also folding on comments
1929 :
1930 :	dvdkhlng	1.61	;; (dk) This code needs a rewrite; just too ugly and doesn't use the
1931 :			;; newer and smarter scanning rules of `imenu'. Who needs it anyway??
1932 :	pazsan	1.12
1933 :	dvdkhlng	1.61	;; (require 'outline)
1934 :
1935 :			;; (defun f-outline-level ()
1936 :			;; (cond ((looking-at "\\`\\\\")
1937 :			;; 0)
1938 :			;; ((looking-at "\\\\ SEC")
1939 :			;; 0)
1940 :			;; ((looking-at "\\\\ \\\\ .*")
1941 :			;; 0)
1942 :			;; ((looking-at "\\\\ DEFS")
1943 :			;; 1)
1944 :			;; ((looking-at "\\/\\* ")
1945 :			;; 1)
1946 :			;; ((looking-at ": .*")
1947 :			;; 1)
1948 :			;; ((looking-at "\\\\G")
1949 :			;; 2)
1950 :			;; ((looking-at "[ \t]+\\\\")
1951 :			;; 3)))
1952 :	dvdkhlng	1.57
1953 :	dvdkhlng	1.61	;; (defun fold-f ()
1954 :			;; (interactive)
1955 :			;; (add-hook 'outline-minor-mode-hook 'hide-body)
1956 :
1957 :			;; ; outline mode header start, i.e. find word definitions
1958 :			;; ;;; (setq outline-regexp "^\$:\$[ \t]+\$[^ \t]*\$")
1959 :			;; (setq outline-regexp "\\`\\\\\\\|:\\\|\\\\ SEC\\\|\\\\G\\\|[ \t]+\\\\\\\|\\\\ DEFS\\\|\\/\\\\\|\\\\ \\\\ .")
1960 :			;; (setq outline-level 'f-outline-level)
1961 :
1962 :			;; (outline-minor-mode)
1963 :			;; (define-key outline-minor-mode-map '(shift up) 'hide-sublevels)
1964 :			;; (define-key outline-minor-mode-map '(shift right) 'show-children)
1965 :			;; (define-key outline-minor-mode-map '(shift left) 'hide-subtree)
1966 :			;; (define-key outline-minor-mode-map '(shift down) 'show-subtree))
1967 :
1968 :	pazsan	1.29
1969 :			;;(define-key global-map '(shift up) 'fold-f)
1970 :
1971 :	pazsan	1.12	;;; end file folding
1972 :
1973 :			;;; func-menu is a package that scans your source file for function definitions
1974 :			;;; and makes a menubar entry that lets you jump to any particular function
1975 :			;;; definition by selecting it from the menu. The following code turns this on
1976 :			;;; for all of the recognized languages. Scanning the buffer takes some time,
1977 :			;;; but not much.
1978 :			;;;
1979 :	dvdkhlng	1.61	;; (cond ((string-match "XEmacs\\\|Lucid" emacs-version)
1980 :			;; (require 'func-menu)
1981 :			;; ;; (define-key global-map 'f8 'function-menu)
1982 :			;; (add-hook 'find-fible-hooks 'fume-add-menubar-entry)
1983 :			;; ; (define-key global-map "\C-cg" 'fume-prompt-function-goto)
1984 :			;; ; (define-key global-map '(shift button3) 'mouse-function-menu)
1985 :			;; ))
1986 :	dvdkhlng	1.57
1987 :			(provide 'forth-mode)
1988 :	pazsan	1.29
1989 :	pazsan	1.48	;;; gforth.el ends here

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