Annotation of gforth/gforth.el, revision 1.49
1.48 pazsan 1: ;;; gforth.el --- major mode for editing (G)Forth sources
1.31 anton 2:
1.43 anton 3: ;; Copyright (C) 1995,1996,1997,1998,2000 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.
36:
1.1 anton 37: ;;-------------------------------------------------------------------
38: ;; A Forth indentation, documentation search and interaction library
39: ;;-------------------------------------------------------------------
40: ;;
41: ;; Written by Goran Rydqvist, gorry@ida.liu.se, Summer 1988
42: ;; Started: 16 July 88
43: ;; Version: 2.10
44: ;; Last update: 5 December 1989 by Mikael Patel, mip@ida.liu.se
45: ;; Last update: 25 June 1990 by Goran Rydqvist, gorry@ida.liu.se
46: ;;
47: ;; Documentation: See forth-mode (^HF forth-mode)
48: ;;-------------------------------------------------------------------
49:
1.48 pazsan 50: ;;; Code:
51:
52:
53:
54: ;;; Hilighting and indentation engine (dk)
55: ;;;
56:
57: (defvar forth-words nil
58: "List of words for hilighting and recognition of parsed text areas.
59: You can enable hilighting of object-oriented Forth code, by appending either
60: `forth-objects-words' or `forth-oof-words' to the list, depending on which
1.49 ! dvdkhlng 61: OOP package you're using. After `forth-words' changed, `forth-compile-words'
! 62: must be called to make the changes take effect.
1.48 pazsan 63:
64: Each item of `forth-words' has the form
65: (MATCHER TYPE HILIGHT . &optional PARSED-TEXT ...)
66:
67: MATCHER is either a list of strings to match, or a REGEXP.
68: If it's a REGEXP, it should not be surrounded by '\\<' or '\\>', since
69: that'll be done automatically by the search routines.
70:
71: TYPE should be one of 'definiton-starter', 'definition-ender', 'compile-only',
72: 'immediate' or 'non-immediate'. Those information are required to determine
73: whether a word actually parses (and whether that parsed text needs to be
74: hilighted).
75:
76: HILIGHT is a cons cell of the form (FACE . MINIMUM-LEVEL)
77: Where MINIMUM-LEVEL specifies the minimum value of `forth-hilight-level',
78: that's required for matching text to be hilighted.
79:
80: PARSED-TEXT specifies whether and how a word parses following text. You can
81: specify as many subsequent PARSED-TEXT as you wish, but that shouldn't be
82: necessary very often. It has the following form:
83: (DELIM-REGEXP SKIP-LEADING-FLAG PARSED-TYPE HILIGHT)
84:
85: DELIM-REGEXP is a regular expression that should match strings of length 1,
86: which are delimiters for the parsed text.
87:
88: A non-nil value for PARSE-LEADING-FLAG means, that leading delimiter strings
89: before parsed text should be skipped. This is the parsing behaviour of the
90: Forth word WORD. Set it to t for name-parsing words, nil for comments and
91: strings.
92:
93: PARSED-TYPE specifies what kind of text is parsed. It should be on of 'name',
94: 'string' or 'comment'.")
95: (setq forth-words
96: '(
97: (("[") definition-ender (font-lock-keyword-face . 1))
98: (("]" "]l") definition-starter (font-lock-keyword-face . 1))
99: ((":") definition-starter (font-lock-keyword-face . 1)
100: "[ \t\n]" t name (font-lock-function-name-face . 3))
101: (("immediate" "compile-only" "restrict")
102: immediate (font-lock-keyword-face . 1))
103: (("does>") compile-only (font-lock-keyword-face . 1))
104: ((":noname") definition-starter (font-lock-keyword-face . 1))
105: ((";" ";code") definition-ender (font-lock-keyword-face . 1))
106: (("include" "require" "needs" "use")
107: non-immediate (font-lock-keyword-face . 1)
108: "[\n\t ]" t string (font-lock-string-face . 1))
109: (("included" "required" "thru" "load")
110: non-immediate (font-lock-keyword-face . 1))
111: (("[char]") compile-only (font-lock-keyword-face . 1)
112: "[ \t\n]" t string (font-lock-string-face . 1))
113: (("char") non-immediate (font-lock-keyword-face . 1)
114: "[ \t\n]" t string (font-lock-string-face . 1))
115: (("s\"" "c\"") immediate (font-lock-string-face . 1)
116: "[\"\n]" nil string (font-lock-string-face . 1))
117: ((".\"") compile-only (font-lock-string-face . 1)
118: "[\"\n]" nil string (font-lock-string-face . 1))
119: (("abort\"") compile-only (font-lock-keyword-face . 1)
120: "[\"\n]" nil string (font-lock-string-face . 1))
121: (("{") compile-only (font-lock-variable-name-face . 1)
122: "[\n}]" nil name (font-lock-variable-name-face . 1))
123: ((".(" "(") immediate (font-lock-comment-face . 1)
124: ")" nil comment (font-lock-comment-face . 1))
125: (("\\" "\\G") immediate (font-lock-comment-face . 1)
126: "[\n]" nil comment (font-lock-comment-face . 1))
127:
128: (("[if]" "[?do]" "[do]" "[for]" "[begin]"
129: "[endif]" "[then]" "[loop]" "[+loop]" "[next]" "[until]" "[repeat]"
130: "[again]" "[while]" "[else]")
131: immediate (font-lock-keyword-face . 2))
132: (("[ifdef]" "[ifundef]") immediate (font-lock-keyword-face . 2)
133: "[ \t\n]" t name (font-lock-function-name-face . 3))
134: (("if" "begin" "ahead" "do" "?do" "+do" "u+do" "-do" "u-do" "for"
135: "case" "of" "?dup-if" "?dup-0=-if" "then" "until" "repeat" "again"
136: "loop" "+loop" "-loop" "next" "endcase" "endof" "else" "while" "try"
137: "recover" "endtry" "assert(" "assert0(" "assert1(" "assert2("
138: "assert3(" ")" "<interpretation" "<compilation" "interpretation>"
139: "compilation>")
140: compile-only (font-lock-keyword-face . 2))
141:
142: (("true" "false" "c/l" "bl" "cell" "pi" "w/o" "r/o" "r/w")
143: non-immediate (font-lock-constant-face . 2))
144: (("~~") compile-only (font-lock-warning-face . 2))
145: (("postpone" "[is]" "defers" "[']" "[compile]")
146: compile-only (font-lock-keyword-face . 2)
147: "[ \t\n]" t name (font-lock-function-name-face . 3))
148: (("is" "what's") immediate (font-lock-keyword-face . 2)
149: "[ \t\n]" t name (font-lock-function-name-face . 3))
150: (("<is>" "'") non-immediate (font-lock-keyword-face . 2)
151: "[ \t\n]" t name (font-lock-function-name-face . 3))
152: (("[to]") compile-only (font-lock-keyword-face . 2)
153: "[ \t\n]" t name (font-lock-variable-name-face . 3))
154: (("to") immediate (font-lock-keyword-face . 2)
155: "[ \t\n]" t name (font-lock-variable-name-face . 3))
156: (("<to>") non-immediate (font-lock-keyword-face . 2)
157: "[ \t\n]" t name (font-lock-variable-name-face . 3))
158:
159: (("create" "variable" "constant" "2variable" "2constant" "fvariable"
160: "fconstant" "value" "field" "user" "vocabulary"
161: "create-interpret/compile")
162: non-immediate (font-lock-type-face . 2)
163: "[ \t\n]" t name (font-lock-variable-name-face . 3))
164: (("defer" "alias" "create-interpret/compile:")
165: non-immediate (font-lock-type-face . 1)
166: "[ \t\n]" t name (font-lock-function-name-face . 3))
167: (("end-struct") non-immediate (font-lock-keyword-face . 2)
168: "[ \t\n]" t name (font-lock-type-face . 3))
169: (("struct") non-immediate (font-lock-keyword-face . 2))
170: ("-?[0-9]+\\(\\.[0-9]*e\\(-?[0-9]+\\)?\\|\\.?[0-9a-f]*\\)"
171: immediate (font-lock-constant-face . 3))
172: ))
173:
174: (defvar forth-objects-words nil
175: "Hilighting description for words of the \"Objects\" OOP package")
176: (setq forth-objects-words
177: '(((":m") definition-starter (font-lock-keyword-face . 1)
178: "[ \t\n]" t name (font-lock-function-name-face . 3))
179: (("m:") definition-starter (font-lock-keyword-face . 1))
180: ((";m") definition-ender (font-lock-keyword-face . 1))
181: (("[current]" "[parent]") compile-only (font-lock-keyword-face . 1)
182: "[ \t\n]" t name (font-lock-function-name-face . 3))
183: (("current" "overrides") non-immediate (font-lock-keyword-face . 2)
184: "[ \t\n]" t name (font-lock-function-name-face . 3))
185: (("[to-inst]") compile-only (font-lock-keyword-face . 2)
186: "[ \t\n]" t name (font-lock-variable-name-face . 3))
187: (("[bind]") compile-only (font-lock-keyword-face . 2)
188: "[ \t\n]" t name (font-lock-type-face . 3)
189: "[ \t\n]" t name (font-lock-function-name-face . 3))
190: (("bind") non-immediate (font-lock-keyword-face . 2)
191: "[ \t\n]" t name (font-lock-type-face . 3)
192: "[ \t\n]" t name (font-lock-function-name-face . 3))
193: (("inst-var" "inst-value") non-immediate (font-lock-type-face . 2)
194: "[ \t\n]" t name (font-lock-variable-name-face . 3))
195: (("method" "selector")
196: non-immediate (font-lock-type-face . 1)
197: "[ \t\n]" t name (font-lock-function-name-face . 3))
198: (("end-class" "end-interface")
199: non-immediate (font-lock-keyword-face . 2)
200: "[ \t\n]" t name (font-lock-type-face . 3))
201: (("public" "protected" "class" "exitm" "implementation" "interface"
202: "methods" "end-methods" "this")
203: non-immediate (font-lock-keyword-face . 2))
204: (("object") non-immediate (font-lock-type-face . 2))))
205: ; (nconc forth-words forth-objects-words)
206:
207: (defvar forth-oof-words nil
208: "Hilighting description for words of the \"OOF\" OOP package")
209: (setq forth-oof-words
210: '((("class") non-immediate (font-lock-keyword-face . 2)
211: "[ \t\n]" t name (font-lock-type-face . 3))
212: (("var") non-immediate (font-lock-type-face . 2)
213: "[ \t\n]" t name (font-lock-variable-name-face . 3))
214: (("method") non-immediate (font-lock-type-face . 2)
215: "[ \t\n]" t name (font-lock-function-name-face . 3))
216: (("::" "super" "bind" "bound" "link")
217: immediate (font-lock-keyword-face . 2)
218: "[ \t\n]" t name (font-lock-function-name-face . 3))
219: (("ptr" "asptr" "[]")
220: immediate (font-lock-keyword-face . 2)
221: "[ \t\n]" t name (font-lock-variable-name-face . 3))
222: (("class;" "how:" "self" "new" "new[]" "definitions" "class?" "with"
223: "endwith")
224: non-immediate (font-lock-keyword-face . 2))
225: (("object") non-immediate (font-lock-type-face . 2))))
226: ; (nconc forth-words forth-oof-words)
227:
1.49 ! dvdkhlng 228: (defvar forth-local-words nil
! 229: "List of Forth words to prepend to `forth-words'. Should be set by a
! 230: forth source, using a local variables list at the end of the file
! 231: (\"Local Variables: ... forth-local-words: ... End:\" construct).")
! 232:
1.48 pazsan 233: (defvar forth-hilight-level 3 "*Level of hilighting of Forth code.")
234: (defvar forth-compiled-words nil "Compiled representation of `forth-words'.")
235:
236: ; todo:
237: ;
238:
239: ; Wörter ordentlich hilighten, die nicht auf whitespace beginning ( ..)IF
1.49 ! dvdkhlng 240: ; Additional `forth-use-objects' or
1.48 pazsan 241: ; `forth-use-oof' could be set to non-nil for automatical adding of those
1.49 ! dvdkhlng 242: ; word-lists. Using local variable list?
1.48 pazsan 243: ;
1.49 ! dvdkhlng 244: ; Anzeige von Screen-Nummern in Status-Zeile (S???)
1.48 pazsan 245: ;
246: ; Konfiguration über customization groups
247: ;
248: ; Bereich nur auf Wortanfang/ende ausweiten, wenn anfang bzw ende in einem
249: ; Wort liegen (?) -- speed!
250: ;
251: ; User interface
252: ;
253: ; 'forth-word' property muss eindeutig sein!
254:
255: (setq debug-on-error t)
256:
257: ;; Filter list by predicat. This is a somewhat standard function for
258: ;; functional programming languages. So why isn't it already implemented
259: ;; in Lisp??
260: (defun forth-filter (predicat list)
261: (let ((filtered nil))
262: (mapcar (lambda (item)
263: (when (funcall predicat item)
264: (if filtered
265: (nconc filtered (list item))
266: (setq filtered (cons item nil))))
267: nil) list)
268: filtered))
269:
270: ;; Helper function for `forth-compile-word': return whether word has to be
271: ;; added to the compiled word list, for syntactic parsing and hilighting.
272: (defun forth-words-filter (word)
273: (let* ((hilight (nth 2 word))
274: (level (cdr hilight))
275: (parsing-flag (nth 3 word)))
276: (or parsing-flag
277: (<= level forth-hilight-level))))
278:
279: ;; Helper function for `forth-compile-word': translate one entry from
280: ;; `forth-words' into the form (regexp regexp-depth word-description)
281: (defun forth-compile-words-mapper (word)
282: (let* ((matcher (car word))
283: (regexp (if (stringp matcher) (concat "\\(" matcher "\\)")
284: (if (listp matcher) (regexp-opt matcher t)
285: (error "Invalid matcher (stringp or listp expected `%s'"
286: matcher))))
287: (depth (regexp-opt-depth regexp))
288: (description (cdr word)))
289: (list regexp depth description)))
290:
291: ;; Read `words' and create a compiled representation suitable for efficient
292: ;; parsing of the form
293: ;; (regexp (subexp-count word-description) (subexp-count2 word-description2)
294: ;; ...)
1.49 ! dvdkhlng 295: (defun forth-compile-wordlist (words)
1.48 pazsan 296: (let* ((mapped (mapcar 'forth-compile-words-mapper words))
297: (regexp (concat "\\<\\("
298: (mapconcat 'car mapped "\\|")
299: "\\)\\>"))
300: (sub-count 2)
301: (sub-list (mapcar
302: (lambda (i)
303: (let ((sub (cons sub-count (nth 2 i))))
304: (setq sub-count (+ sub-count (nth 1 i)))
305: sub
306: ))
307: mapped)))
308: (let ((result (cons regexp sub-list)))
309: (byte-compile 'result)
310: result)))
311:
1.49 ! dvdkhlng 312: (defun forth-compile-words ()
! 313: "Compile the the words from `forth-words' and `forth-indent-words' into
! 314: the format that's later used for doing the actual hilighting/indentation.
! 315: Store the resulting compiled wordlists in `forth-compiled-words' and
! 316: `forth-compiled-indent-words', respective"
! 317: (setq forth-compiled-words
! 318: (forth-compile-wordlist
! 319: (forth-filter 'forth-words-filter forth-words)))
! 320: (setq forth-compiled-indent-words
! 321: (forth-compile-wordlist forth-indent-words)))
! 322:
! 323: (defun forth-hack-local-variables ()
! 324: "Parse and bind local variables, set in the contens of the current
! 325: forth-mode buffer. Prepend `forth-local-words' to `forth-words' and
! 326: `forth-local-indent-words' to `forth-local-words'."
! 327: (hack-local-variables)
! 328: (setq forth-words (append forth-local-words forth-words))
! 329: (setq forth-indent-words (append forth-local-indent-words
! 330: forth-indent-words)))
! 331:
1.48 pazsan 332: ;; get location of first character of previous forth word that's got
333: ;; properties
334: (defun forth-previous-start (pos)
335: (let* ((word (get-text-property pos 'forth-word))
336: (prev (previous-single-property-change
337: (min (point-max) (1+ pos)) 'forth-word
338: (current-buffer) (point-min))))
339: (if (or (= (point-min) prev) word) prev
340: (if (get-text-property (1- prev) 'forth-word)
341: (previous-single-property-change
342: prev 'forth-word (current-buffer) (point-min))
343: (point-min)))))
344:
345: ;; Get location of the last character of the current/next forth word that's
346: ;; got properties, text that's parsed by the word is considered as parts of
347: ;; the word.
348: (defun forth-next-end (pos)
349: (let* ((word (get-text-property pos 'forth-word))
350: (next (next-single-property-change pos 'forth-word
351: (current-buffer) (point-max))))
352: (if word next
353: (if (get-text-property next 'forth-word)
354: (next-single-property-change
355: next 'forth-word (current-buffer) (point-max))
356: (point-max)))))
357:
358: (defun forth-next-whitespace (pos)
359: (save-excursion
360: (goto-char pos)
361: (skip-syntax-forward "-" (point-max))
362: (point)))
363: (defun forth-previous-word (pos)
364: (save-excursion
365: (goto-char pos)
366: (re-search-backward "\\<" pos (point-min) 1)
367: (point)))
368:
369: ;; Delete all properties, used by Forth mode, from `from' to `to'.
370: (defun forth-delete-properties (from to)
371: (remove-text-properties
372: from to '(face nil forth-parsed nil forth-word nil forth-state nil)))
373:
374: ;; Get the index of the branch of the most recently evaluated regular
375: ;; expression that matched. (used for identifying branches "a\\|b\\|c...")
376: (defun forth-get-regexp-branch ()
377: (let ((count 2))
378: (while (not (match-beginning count))
379: (setq count (1+ count)))
380: count))
381:
382: ;; seek to next forth-word and return its "word-description"
383: (defun forth-next-known-forth-word (to)
384: (if (<= (point) to)
385: (progn
386: (let* ((regexp (car forth-compiled-words))
387: (pos (re-search-forward regexp to t)))
388: (if pos (let ((branch (forth-get-regexp-branch))
389: (descr (cdr forth-compiled-words)))
390: (goto-char (match-beginning 0))
391: (cdr (assoc branch descr)))
392: 'nil)))
393: nil))
394:
395: ;; Set properties of forth word at `point', eventually parsing subsequent
396: ;; words, and parsing all whitespaces. Set point to delimiter after word.
397: ;; The word, including it's parsed text gets the `forth-word' property, whose
398: ;; value is unique, and may be used for getting the word's start/end
399: ;; positions.
400: (defun forth-set-word-properties (state data)
401: (let* ((start (point))
402: (end (progn (re-search-forward "[ \t]\\|$" (point-max) 1)
403: (point)))
404: (type (car data))
405: (hilight (nth 1 data))
406: (bad-word (and (not state) (eq type 'compile-only)))
407: (hlface (if bad-word font-lock-warning-face
408: (if (<= (cdr hilight) forth-hilight-level)
409: (car hilight) nil))))
410: (when hlface (put-text-property start end 'face hlface))
411: ;; if word parses in current state, process parsed range of text
412: (when (or (not state) (eq type 'compile-only) (eq type 'immediate))
413: (let ((parse-data (nthcdr 2 data)))
414: (while parse-data
415: (let ((delim (nth 0 parse-data))
416: (skip-leading (nth 1 parse-data))
417: (parse-type (nth 2 parse-data))
418: (parsed-hilight (nth 3 parse-data))
419: (parse-start (point))
420: (parse-end))
421: (when skip-leading
422: (while (and (looking-at delim) (> (match-end 0) (point))
423: (not (looking-at "\n")))
424: (forward-char)))
425: (re-search-forward delim (point-max) 1)
426: (setq parse-end (point))
427: (forth-delete-properties end parse-end)
428: (when (<= (cdr parsed-hilight) forth-hilight-level)
429: (put-text-property
430: parse-start parse-end 'face (car parsed-hilight)))
431: (put-text-property
432: parse-start parse-end 'forth-parsed parse-type)
433: (setq end parse-end)
434: (setq parse-data (nthcdr 4 parse-data))))))
435: (put-text-property start end 'forth-word start)))
436:
437: ;; Search for known Forth words in the range `from' to `to', using
438: ;; `forth-next-known-forth-word' and set their properties via
439: ;; `forth-set-word-properties'.
440: (defun forth-update-properties (from to)
441: (save-excursion
442: (let ((msg-flag nil) (state) (word-descr) (last-location))
443: (when (> to (+ from 5000))
444: (setq msg-flag t) (message "Parsing Forth code..."))
445: (goto-char (forth-previous-word (forth-previous-start
446: (max (point-min) (1- from)))))
447: (setq to (forth-next-end (min (point-max) (1+ to))))
448: ;; `to' must be on a space delimiter, if a parsing word was changed
449: (setq to (forth-next-whitespace to))
450: (setq state (get-text-property (point) 'forth-state))
451: (setq last-location (point))
452: (forth-delete-properties (point) to)
453: ;; hilight loop...
454: (while (setq word-descr (forth-next-known-forth-word to))
455: (forth-set-word-properties state word-descr)
456: (when state (put-text-property last-location (point) 'forth-state t))
457: (let ((type (car word-descr)))
458: (if (eq type 'definition-starter) (setq state t))
459: (if (eq type 'definition-ender) (setq state nil))
460: (setq last-location (point))))
461: ;; update state property up to `to'
462: (if (and state (< (point) to))
463: (put-text-property last-location to 'forth-state t))
464: ;; extend search if following state properties differ from current state
465: (if (< to (point-max))
466: (if (not (equal state (get-text-property (1+ to) 'forth-state)))
467: (let ((extend-to (next-single-property-change
468: to 'forth-state (current-buffer) (point-max))))
469: (forth-update-properties to extend-to))
470: ))
471: (when msg-flag (message "Parsing Forth code...done"))
472: )))
473:
474: ;; save-buffer-state borrowed from `font-lock.el'
475: (eval-when-compile
476: (defmacro forth-save-buffer-state (varlist &rest body)
477: "Bind variables according to VARLIST and eval BODY restoring buffer state."
478: (` (let* ((,@ (append varlist
479: '((modified (buffer-modified-p)) (buffer-undo-list t)
480: (inhibit-read-only t) (inhibit-point-motion-hooks t)
481: before-change-functions after-change-functions
482: deactivate-mark buffer-file-name buffer-file-truename))))
483: (,@ body)
484: (when (and (not modified) (buffer-modified-p))
485: (set-buffer-modified-p nil))))))
486:
487: ;; Function that is added to the `change-functions' hook. Calls
488: ;; `forth-update-properties' and keeps care of disabling undo information
489: ;; and stuff like that.
490: (defun forth-change-function (from to len)
491: (save-match-data
492: (forth-save-buffer-state ()
493: (unwind-protect
494: (progn
495: (forth-update-properties from to)
496: (forth-update-show-screen)
497: (forth-update-warn-long-lines))))))
498:
499: (eval-when-compile
500: (byte-compile 'forth-set-word-properties)
501: (byte-compile 'forth-next-known-forth-word)
502: (byte-compile 'forth-update-properties)
503: (byte-compile 'forth-delete-properties)
504: (byte-compile 'forth-get-regexp-branch))
505:
506: ;; (require 'profile)
507: ;; (setq profile-functions-list '(forth-set-word-properties forth-next-known-forth-word forth-update-properties forth-delete-properties forth-get-regexp-branch))
508:
509: ;;; Indentation
510: ;;;
511:
512: (defvar forth-indent-words nil
513: "List of words that have indentation behaviour.
514: Each element of `forth-indent-words' should have the form
515: (MATCHER INDENT1 INDENT2)
516:
517: MATCHER is either a list of strings to match, or a REGEXP.
518: If it's a REGEXP, it should not be surrounded by `\\<` or `\\>`, since
519: that'll be done automatically by the search routines.
520:
521: INDENT1 specifies how to indent a word that's located at a line's begin,
522: following any number of whitespaces.
523:
524: INDENT2 specifies how to indent words that are not located at a line's begin.
525:
526: INDENT1 and INDENT2 are indentation specifications of the form
527: (SELF-INDENT . NEXT-INDENT), where SELF-INDENT is a numerical value,
528: specifying how the matching line and all following lines are to be
529: indented, relative to previous lines. NEXT-INDENT specifies how to indent
530: following lines, relative to the matching line.
531:
532: Even values of SELF-INDENT and NEXT-INDENT correspond to multiples of
533: `forth-indent-level'. Odd values get an additional
534: `forth-minor-indent-level' added/substracted. Eg a value of -2 indents
535: 1 * forth-indent-level to the left, wheras 3 indents
536: 1 * forth-indent-level + forth-minor-indent-level columns to the right.")
537:
538: (setq forth-indent-words
539: '(((":" ":noname" "code" "if" "begin" "do" "?do" "+do" "-do" "u+do"
540: "u-do" "?dup-if" "?dup-0=-if" "case" "of" "try" "struct"
541: "[if]" "[ifdef]" "[ifundef]" "[begin]" "[for]" "[do]" "[?do]"
542: "class" "interface" "m:" ":m")
543: (0 . 2) (0 . 2))
1.49 ! dvdkhlng 544: ((";" ";m") (-2 . 0) (0 . -2))
1.48 pazsan 545: (("end-code" "again" "repeat" "then" "endtry" "endcase" "endof"
546: "end-struct" "[then]" "[endif]" "[loop]" "[+loop]" "[next]"
547: "[until]" "[repeat]" "[again]" "end-class" "end-interface"
548: "end-class-noname" "end-interface-noname" "loop"
549: "class;")
550: (-2 . 0) (0 . -2))
551: (("protected" "public" "how:") (-1 . 1) (0 . 0))
552: (("+loop" "-loop" "until") (-2 . 0) (-2 . 0))
553: (("else" "recover" "[else]") (-2 . 2) (0 . 0))
554: (("while" "does>" "[while]") (-1 . 1) (0 . 0))
555: (("\\g") (-2 . 2) (0 . 0))))
556:
1.49 ! dvdkhlng 557: (defvar forth-local-indent-words nil
! 558: "List of Forth words to prepend to `forth-indent-words', when a forth-mode
! 559: buffer is created. Should be set by a Forth source, using a local variables
! 560: list at the end of the file (\"Local Variables: ... forth-local-words: ...
! 561: End:\" construct).")
! 562:
1.48 pazsan 563: (defvar forth-indent-level 4
564: "Indentation of Forth statements.")
565: (defvar forth-minor-indent-level 2
566: "Minor indentation of Forth statements.")
567: (defvar forth-compiled-indent-words nil)
568:
569: ;; Return, whether `pos' is the first forth word on its line
570: (defun forth-first-word-on-line-p (pos)
571: (save-excursion
572: (beginning-of-line)
573: (skip-chars-forward " \t")
574: (= pos (point))))
575:
576: ;; Return indentation data (SELF-INDENT . NEXT-INDENT) of next known
577: ;; indentation word, or nil if there is no word up to `to'.
578: ;; Position `point' at location just after found word, or at `to'. Parsed
579: ;; ranges of text will not be taken into consideration!
580: (defun forth-next-known-indent-word (to)
581: (if (<= (point) to)
582: (progn
583: (let* ((regexp (car forth-compiled-indent-words))
584: (pos (re-search-forward regexp to t)))
585: (if pos
586: (if (text-property-not-all (match-beginning 0) (match-end 0)
587: 'forth-parsed nil)
588: (forth-next-known-indent-word to)
589: (let* ((branch (forth-get-regexp-branch))
590: (descr (cdr forth-compiled-indent-words))
591: (indent (cdr (assoc branch descr))))
592: (if (forth-first-word-on-line-p (match-beginning 0))
593: (nth 0 indent) (nth 1 indent))))
594: nil)))
595: nil))
596:
597: ;; Translate indentation value `indent' to indentation column. Multiples of
598: ;; 2 correspond to multiples of `forth-indent-level'. Odd numbers get an
599: ;; additional `forth-minor-indent-level' added (or substracted).
600: (defun forth-convert-to-column (indent)
601: (let* ((sign (if (< indent 0) -1 1))
602: (value (abs indent))
603: (major (* (/ value 2) forth-indent-level))
604: (minor (* (% value 2) forth-minor-indent-level)))
605: (* sign (+ major minor))))
606:
607: ;; Return the column increment, that the current line of forth code does to
608: ;; the current or following lines. `which' specifies which indentation values
609: ;; to use. 0 means the indentation of following lines relative to current
610: ;; line, 1 means the indentation of the current line relative to the previous
611: ;; line. Return `nil', if there are no indentation words on the current line.
612: (defun forth-get-column-incr (which)
613: (save-excursion
614: (let ((regexp (car forth-compiled-indent-words))
615: (word-indent)
616: (self-indent nil)
617: (next-indent nil)
618: (to (save-excursion (end-of-line) (point))))
619: (beginning-of-line)
620: (while (setq word-indent (forth-next-known-indent-word to))
621: (let* ((self-incr (car word-indent))
622: (next-incr (cdr word-indent))
623: (self-column-incr (forth-convert-to-column self-incr))
624: (next-column-incr (forth-convert-to-column next-incr)))
625: (setq next-indent (if next-indent next-indent 0))
626: (setq self-indent (if self-indent self-indent 0))
627: (if (or (and (> next-indent 0) (< self-column-incr 0))
628: (and (< next-indent 0) (> self-column-incr 0)))
629: (setq next-indent (+ next-indent self-column-incr))
630: (setq self-indent (+ self-indent self-column-incr)))
631: (setq next-indent (+ next-indent next-column-incr))))
632: (nth which (list self-indent next-indent)))))
633:
634: ;; Find previous line that contains indentation words, return the column,
635: ;; to which following text should be indented to.
636: (defun forth-get-anchor-column ()
637: (save-excursion
638: (if (/= 0 (forward-line -1)) 0
639: (let ((next-indent)
640: (self-indent))
641: (while (not (or (setq indent (forth-get-column-incr 1))
642: (<= (point) (point-min))))
643: (forward-line -1))
644: (+ (current-indentation) (if indent indent 0))))))
645:
646: (defun forth-indent-line (&optional flag)
647: "Correct indentation of the current Forth line."
648: (let* ((anchor (forth-get-anchor-column))
649: (column-incr (forth-get-column-incr 0)))
650: (forth-indent-to (if column-incr (+ anchor column-incr) anchor))))
651:
1.49 ! dvdkhlng 652: (defun forth-current-column ()
! 653: (- (point) (save-excursion (beginning-of-line) (point))))
! 654: (defun forth-current-indentation ()
! 655: (- (save-excursion (beginning-of-line) (forward-to-indentation 0) (point))
! 656: (save-excursion (beginning-of-line) (point))))
! 657:
1.48 pazsan 658: (defun forth-indent-to (x)
659: (let ((p nil))
1.49 ! dvdkhlng 660: (setq p (- (forth-current-column) (forth-current-indentation)))
1.48 pazsan 661: (forth-delete-indentation)
662: (beginning-of-line)
663: (indent-to x)
664: (if (> p 0) (forward-char p))))
665:
666: (defun forth-delete-indentation ()
667: (save-excursion
668: (delete-region
669: (progn (beginning-of-line) (point))
670: (progn (back-to-indentation) (point)))))
671:
672: (defun forth-indent-command ()
673: (interactive)
674: (forth-indent-line t))
675:
676: ;; remove trailing whitespaces in current line
677: (defun forth-remove-trailing ()
678: (save-excursion
679: (end-of-line)
680: (delete-region (point) (progn (skip-chars-backward " \t") (point)))))
681:
682: ;; insert newline, removing any trailing whitespaces in the current line
683: (defun forth-newline-remove-trailing ()
684: (save-excursion
1.49 ! dvdkhlng 685: (delete-region (point) (progn (skip-chars-backward " \t") (point))))
! 686: (newline))
! 687: ; (let ((was-point (point-marker)))
! 688: ; (unwind-protect
! 689: ; (progn (forward-line -1) (forth-remove-trailing))
! 690: ; (goto-char (was-point)))))
1.48 pazsan 691:
692: ;; workaround for bug in `reindent-then-newline-and-indent'
693: (defun forth-reindent-then-newline-and-indent ()
694: (interactive "*")
695: (indent-according-to-mode)
696: (forth-newline-remove-trailing)
697: (indent-according-to-mode))
698:
699: ;;; end hilighting/indentation
700:
701: ;;; Block file encoding/decoding (dk)
702: ;;;
703:
704: (defconst forth-c/l 64 "Number of characters per block line")
705: (defconst forth-l/b 16 "Number of lines per block")
706:
707: ;; Check whether the unconverted block file line, point is in, does not
708: ;; contain `\n' and `\t' characters.
709: (defun forth-check-block-line (line)
710: (let ((end (save-excursion (beginning-of-line) (forward-char forth-c/l)
711: (point))))
712: (save-excursion
713: (beginning-of-line)
714: (when (search-forward "\n" end t)
715: (message "Warning: line %i contains newline character #10" line)
716: (ding t))
717: (beginning-of-line)
718: (when (search-forward "\t" end t)
719: (message "Warning: line %i contains tab character #8" line)
720: (ding t)))))
721:
722: (defun forth-convert-from-block (from to)
723: "Convert block file format to stream source in current buffer."
724: (let ((line (count-lines (point-min) from)))
725: (save-excursion
726: (goto-char from)
727: (set-mark to)
728: (while (< (+ (point) forth-c/l) (mark t))
729: (setq line (1+ line))
730: (forth-check-block-line line)
731: (forward-char forth-c/l)
732: (forth-newline-remove-trailing))
733: (when (= (+ (point) forth-c/l) (mark t))
734: (forth-remove-trailing))
735: (mark t))))
736:
737: ;; Pad a line of a block file up to `forth-c/l' characters, positioning `point'
738: ;; at the end of line.
739: (defun forth-pad-block-line ()
740: (save-excursion
741: (end-of-line)
742: (if (<= (current-column) forth-c/l)
743: (move-to-column forth-c/l t)
744: (message "Line %i longer than %i characters, truncated"
745: (count-lines (point-min) (point)) forth-c/l)
746: (ding t)
747: (move-to-column forth-c/l t)
748: (delete-region (point) (progn (end-of-line) (point))))))
749:
750: ;; Replace tab characters in current line by spaces.
751: (defun forth-convert-tabs-in-line ()
752: (save-excursion
753: (beginning-of-line)
754: (while (search-forward "\t" (save-excursion (end-of-line) (point)) t)
755: (backward-char)
756: (delete-region (point) (1+ (point)))
757: (insert-char ?\ (- tab-width (% (current-column) tab-width))))))
758:
759: ;; Delete newline at end of current line, concatenating it with the following
760: ;; line. Place `point' at end of newly formed line.
761: (defun forth-delete-newline ()
762: (end-of-line)
763: (delete-region (point) (progn (beginning-of-line 2) (point))))
764:
765: (defun forth-convert-to-block (from to &optional original-buffer)
766: "Convert range of text to block file format in current buffer."
767: (let* ((lines 0)) ; I have to count lines myself, since `count-lines' has
768: ; problems with trailing newlines...
769: (save-excursion
770: (goto-char from)
771: (set-mark to)
772: ;; pad lines to full length (`forth-c/l' characters per line)
773: (while (< (save-excursion (end-of-line) (point)) (mark t))
774: (setq lines (1+ lines))
775: (forth-pad-block-line)
776: (forth-convert-tabs-in-line)
777: (forward-line))
778: ;; also make sure the last line is padded, if `to' is at its end
779: (end-of-line)
780: (when (= (point) (mark t))
781: (setq lines (1+ lines))
782: (forth-pad-block-line)
783: (forth-convert-tabs-in-line))
784: ;; remove newlines between lines
785: (goto-char from)
786: (while (< (save-excursion (end-of-line) (point)) (mark t))
787: (forth-delete-newline))
788: ;; append empty lines, until last block is complete
789: (goto-char (mark t))
790: (let* ((required (* (/ (+ lines (1- forth-l/b)) forth-l/b) forth-l/b))
791: (pad-lines (- required lines)))
792: (while (> pad-lines 0)
793: (insert-char ?\ forth-c/l)
794: (setq pad-lines (1- pad-lines))))
795: (point))))
796:
797: (defun forth-detect-block-file-p ()
798: "Return non-nil if the current buffer is in block file format. Detection is
799: done by checking whether the first line has 1024 characters or more."
800: (save-restriction
801: (widen)
802: (save-excursion
803: (beginning-of-buffer)
804: (end-of-line)
805: (>= (current-column) 1024))))
806:
807: ;; add block file conversion routines to `format-alist'
808: (defconst forth-block-format-description
809: '(forth-blocks "Forth block source file" nil
810: forth-convert-from-block forth-convert-to-block
811: t normal-mode))
812: (unless (memq forth-block-format-description format-alist)
813: (setq format-alist (cons forth-block-format-description format-alist)))
814:
815: ;;; End block file encoding/decoding
816:
817: ;;; Block file editing
818: ;;;
819: (defvar forth-overlay-arrow-string ">>")
820: (defvar forth-block-base 1 "Number of first block in block file")
821: (defvar forth-show-screen nil
822: "Non-nil means to show screen starts and numbers (for block files)")
823: (defvar forth-warn-long-lines nil
824: "Non-nil means to warn about lines that are longer than 64 characters")
825:
826: (defvar forth-screen-marker nil)
827:
828: (defun forth-update-show-screen ()
829: "If `forth-show-screen' is non-nil, put overlay arrow to start of screen,
830: `point' is in. If arrow now points to different screen than before, display
831: screen number."
832: (if (not forth-show-screen)
833: (setq overlay-arrow-string nil)
834: (save-excursion
835: (let* ((line (count-lines (point-min) (min (point-max) (1+ (point)))))
836: (first-line (1+ (* (/ (1- line) forth-l/b) forth-l/b)))
837: (scr (+ forth-block-base (/ first-line forth-l/b))))
838: (setq overlay-arrow-string forth-overlay-arrow-string)
839: (goto-line first-line)
840: (setq overlay-arrow-position forth-screen-marker)
841: (when (/= forth-screen-marker (point))
842: (message "Entered screen #%i" scr)
843: (set-marker forth-screen-marker (point)))))))
844:
845: (add-hook 'forth-motion-hooks 'forth-update-show-screen)
846:
847: (defun forth-update-warn-long-lines ()
848: "If `forth-warn-long-lines' is non-nil, display a warning whenever a line
849: exceeds 64 characters."
850: (when forth-warn-long-lines
851: (when (> (save-excursion (end-of-line) (current-column)) forth-c/l)
852: (message "Warning: current line exceeds %i characters"
853: forth-c/l))))
854:
855: (add-hook 'forth-motion-hooks 'forth-update-warn-long-lines)
856:
857: ;;; End block file editing
1.1 anton 858:
1.6 anton 859:
1.1 anton 860: (defvar forth-mode-abbrev-table nil
861: "Abbrev table in use in Forth-mode buffers.")
862:
863: (define-abbrev-table 'forth-mode-abbrev-table ())
864:
865: (defvar forth-mode-map nil
866: "Keymap used in Forth mode.")
867:
868: (if (not forth-mode-map)
869: (setq forth-mode-map (make-sparse-keymap)))
870:
1.9 anton 871: ;(define-key forth-mode-map "\M-\C-x" 'compile)
1.7 anton 872: (define-key forth-mode-map "\C-x\\" 'comment-region)
873: (define-key forth-mode-map "\C-x~" 'forth-remove-tracers)
1.1 anton 874: (define-key forth-mode-map "\e\C-m" 'forth-send-paragraph)
875: (define-key forth-mode-map "\eo" 'forth-send-buffer)
876: (define-key forth-mode-map "\C-x\C-m" 'forth-split)
877: (define-key forth-mode-map "\e " 'forth-reload)
878: (define-key forth-mode-map "\t" 'forth-indent-command)
1.48 pazsan 879: (define-key forth-mode-map "\C-m" 'forth-reindent-then-newline-and-indent)
1.7 anton 880: (define-key forth-mode-map "\M-q" 'forth-fill-paragraph)
1.13 pazsan 881: (define-key forth-mode-map "\e." 'forth-find-tag)
1.1 anton 882:
1.48 pazsan 883: ;;; hook into motion events (realy ugly!) (dk)
884: (define-key forth-mode-map "\C-n" 'forth-next-line)
885: (define-key forth-mode-map "\C-p" 'forth-previous-line)
886: (define-key forth-mode-map [down] 'forth-next-line)
887: (define-key forth-mode-map [up] 'forth-previous-line)
888: (define-key forth-mode-map "\C-f" 'forth-forward-char)
889: (define-key forth-mode-map "\C-b" 'forth-backward-char)
890: (define-key forth-mode-map [right] 'forth-forward-char)
891: (define-key forth-mode-map [left] 'forth-backward-char)
892: (define-key forth-mode-map "\M-f" 'forth-forward-word)
893: (define-key forth-mode-map "\M-b" 'forth-backward-word)
894: (define-key forth-mode-map [C-right] 'forth-forward-word)
895: (define-key forth-mode-map [C-left] 'forth-backward-word)
896: (define-key forth-mode-map "\M-v" 'forth-scroll-down)
897: (define-key forth-mode-map "\C-v" 'forth-scroll-up)
898: (define-key forth-mode-map [prior] 'forth-scroll-down)
899: (define-key forth-mode-map [next] 'forth-scroll-up)
900:
901: (defun forth-next-line (arg)
902: (interactive "p") (next-line arg) (run-hooks 'forth-motion-hooks))
903: (defun forth-previous-line (arg)
904: (interactive "p") (previous-line arg) (run-hooks 'forth-motion-hooks))
905: (defun forth-backward-char (arg)
906: (interactive "p") (backward-char arg) (run-hooks 'forth-motion-hooks))
907: (defun forth-forward-char (arg)
908: (interactive "p") (forward-char arg) (run-hooks 'forth-motion-hooks))
909: (defun forth-forward-word (arg)
910: (interactive "p") (forward-word arg) (run-hooks 'forth-motion-hooks))
911: (defun forth-backward-word (arg)
912: (interactive "p") (backward-word arg) (run-hooks 'forth-motion-hooks))
913: (defun forth-scroll-down (arg)
914: (interactive "P") (scroll-down arg) (run-hooks 'forth-motion-hooks))
915: (defun forth-scroll-up (arg)
916: (interactive "P") (scroll-up arg) (run-hooks 'forth-motion-hooks))
917:
1.35 anton 918: ;setup for C-h C-i to work
919: (if (fboundp 'info-lookup-add-help)
920: (info-lookup-add-help
921: :topic 'symbol
922: :mode 'forth-mode
923: :regexp "[^
924: ]+"
925: :ignore-case t
926: :doc-spec '(("(gforth)Name Index" nil "`" "' "))))
927:
1.22 anton 928: (load "etags")
1.13 pazsan 929:
930: (defun forth-find-tag (tagname &optional next-p regexp-p)
931: (interactive (find-tag-interactive "Find tag: "))
932: (switch-to-buffer
933: (find-tag-noselect (concat " " tagname " ") next-p regexp-p)))
934:
1.1 anton 935: (defvar forth-mode-syntax-table nil
936: "Syntax table in use in Forth-mode buffers.")
937:
1.48 pazsan 938: ;; Important: hilighting/indentation now depends on a correct syntax table.
939: ;; All characters, except whitespace *must* belong to the "word constituent"
940: ;; syntax class. If different behaviour is required, use of Categories might
941: ;; help.
942: (if (not forth-mode-syntax-table)
1.1 anton 943: (progn
944: (setq forth-mode-syntax-table (make-syntax-table))
1.6 anton 945: (let ((char 0))
946: (while (< char ?!)
947: (modify-syntax-entry char " " forth-mode-syntax-table)
948: (setq char (1+ char)))
949: (while (< char 256)
950: (modify-syntax-entry char "w" forth-mode-syntax-table)
951: (setq char (1+ char))))
952: ))
1.1 anton 953:
954:
955: (defun forth-mode-variables ()
956: (set-syntax-table forth-mode-syntax-table)
957: (setq local-abbrev-table forth-mode-abbrev-table)
958: (make-local-variable 'paragraph-start)
959: (setq paragraph-start (concat "^$\\|" page-delimiter))
960: (make-local-variable 'paragraph-separate)
961: (setq paragraph-separate paragraph-start)
962: (make-local-variable 'indent-line-function)
963: (setq indent-line-function 'forth-indent-line)
1.6 anton 964: ; (make-local-variable 'require-final-newline)
965: ; (setq require-final-newline t)
1.1 anton 966: (make-local-variable 'comment-start)
1.3 anton 967: (setq comment-start "\\ ")
968: ;(make-local-variable 'comment-end)
969: ;(setq comment-end " )")
1.1 anton 970: (make-local-variable 'comment-column)
971: (setq comment-column 40)
972: (make-local-variable 'comment-start-skip)
1.3 anton 973: (setq comment-start-skip "\\ ")
1.47 pazsan 974: (make-local-variable 'comment-indent-hook)
975: (setq comment-indent-hook 'forth-comment-indent)
1.1 anton 976: (make-local-variable 'parse-sexp-ignore-comments)
1.47 pazsan 977: (setq parse-sexp-ignore-comments t)
1.48 pazsan 978: (setq case-fold-search t)
979: (make-local-variable 'forth-words)
980: (make-local-variable 'forth-compiled-words)
981: (make-local-variable 'forth-compiled-indent-words)
982: (make-local-variable 'forth-hilight-level)
983: (make-local-variable 'after-change-functions)
984: (make-local-variable 'forth-show-screen)
985: (make-local-variable 'forth-screen-marker)
986: (make-local-variable 'forth-warn-long-lines)
987: (setq forth-screen-marker (copy-marker 0))
1.49 ! dvdkhlng 988: (add-hook 'after-change-functions 'forth-change-function))
1.47 pazsan 989:
1.2 anton 990: ;;;###autoload
1.1 anton 991: (defun forth-mode ()
992: "
993: Major mode for editing Forth code. Tab indents for Forth code. Comments
1.9 anton 994: are delimited with \\ and newline. Paragraphs are separated by blank lines
1.49 ! dvdkhlng 995: only. Block files are autodetected, when read, and converted to normal
! 996: stream source format. See also `forth-block-mode'.
1.1 anton 997: \\{forth-mode-map}
998: Forth-split
999: Positions the current buffer on top and a forth-interaction window
1000: below. The window size is controlled by the forth-percent-height
1001: variable (see below).
1002: Forth-reload
1003: Reloads the forth library and restarts the forth process.
1004: Forth-send-buffer
1005: Sends the current buffer, in text representation, as input to the
1006: forth process.
1007: Forth-send-paragraph
1008: Sends the previous or the current paragraph to the forth-process.
1009: Note that the cursor only need to be with in the paragraph to be sent.
1.48 pazsan 1010: forth-documentation
1.1 anton 1011: Search for documentation of forward adjacent to cursor. Note! To use
1012: this mode you have to add a line, to your .emacs file, defining the
1013: directories to search through for documentation files (se variable
1014: forth-help-load-path below) e.g. (setq forth-help-load-path '(nil)).
1015:
1016: Variables controlling interaction and startup
1017: forth-percent-height
1018: Tells split how high to make the edit portion, in percent of the
1019: current screen height.
1020: forth-program-name
1021: Tells the library which program name to execute in the interation
1022: window.
1023:
1.48 pazsan 1024: Variables controlling syntax hilighting/recognition of parsed text:
1025: `forth-words'
1026: List of words that have a special parsing behaviour and/or should be
1027: hilighted.
1.49 ! dvdkhlng 1028: forth-local-words
! 1029: List of words to prepend to `forth-words', whenever a forth-mode
! 1030: buffer is created. That variable should be set by Forth sources, using
! 1031: a local variables list at the end of file, to get file-specific
! 1032: hilighting.
! 1033: 0 [IF]
! 1034: Local Variables: ...
! 1035: forth-local-words: ...
! 1036: End:
! 1037: [THEN]
1.48 pazsan 1038: forth-objects-words
1039: Hilighting information for the words of the \"Objects\" package for
1.49 ! dvdkhlng 1040: object-oriented programming. Append it to `forth-words', if you need
! 1041: it.
1.48 pazsan 1042: forth-oof-words
1043: Hilighting information for the words of the \"OOF\" package.
1044: forth-hilight-level
1045: Controls how much syntax hilighting is done. Should be in the range
1046:
1.1 anton 1047: Variables controlling indentation style:
1.48 pazsan 1048: `forth-indent-words'
1049: List of words that influence indentation.
1.49 ! dvdkhlng 1050: `forth-local-indent-words'
! 1051: List of words to prepend to `forth-indent-words', similar to
! 1052: `forth-local-words'. Should be used for specifying file-specific
! 1053: indentation, using a local variables list.
1.1 anton 1054: forth-indent-level
1055: Indentation increment/decrement of Forth statements.
1.48 pazsan 1056: forth-minor-indent-level
1057: Minor indentation increment/decrement of Forth statemens.
1.1 anton 1058:
1.48 pazsan 1059: Variables controlling block-file editing:
1060: `forth-show-screen'
1061: Non-nil means, that the start of the current screen is marked by an
1062: overlay arrow, and motion over screen boundaries displays the number
1063: of the screen entered. This variable is by default nil for `forth-mode'
1064: and t for `forth-block-mode'.
1065: `forth-overlay-arrow-string'
1066: String to display as the overlay arrow, when `forth-show-screen' is t.
1067: Setting this variable to nil disables the overlay arrow.
1068: `forth-block-base'
1069: Screen number of the first block in a block file. Defaults to 1.
1070: `forth-warn-long-lines'
1071: Non-nil means that a warning message is displayed whenever you edit or
1072: move over a line that is longer than 64 characters (the maximum line
1073: length that can be stored into a block file). This variable defaults to
1074: t for `forth-block-mode' and to nil for `forth-mode'.
1.1 anton 1075:
1076: Variables controling documentation search
1077: forth-help-load-path
1078: List of directories to search through to find *.doc
1079: (forth-help-file-suffix) files. Nil means current default directory.
1080: The specified directories must contain at least one .doc file. If it
1081: does not and you still want the load-path to scan that directory, create
1082: an empty file dummy.doc.
1083: forth-help-file-suffix
1084: The file names to search for in each directory specified by
1085: forth-help-load-path. Defaulted to '*.doc'.
1086: "
1087: (interactive)
1088: (kill-all-local-variables)
1089: (use-local-map forth-mode-map)
1090: (setq mode-name "Forth")
1091: (setq major-mode 'forth-mode)
1.48 pazsan 1092: ;; convert buffer contents from block file format, if necessary
1093: (when (forth-detect-block-file-p)
1094: (widen)
1095: (message "Converting from Forth block source...")
1096: (forth-convert-from-block (point-min) (point-max))
1097: (message "Converting from Forth block source...done"))
1098: ;; if user switched from forth-block-mode to forth-mode, make sure the file
1099: ;; is now stored as normal strem source
1100: (when (equal buffer-file-format '(forth-blocks))
1101: (setq buffer-file-format nil))
1.1 anton 1102: (forth-mode-variables)
1103: ; (if (not (forth-process-running-p))
1104: ; (run-forth forth-program-name))
1.49 ! dvdkhlng 1105: (run-hooks 'forth-mode-hook))
1.48 pazsan 1106:
1107: (define-derived-mode forth-block-mode forth-mode "Forth Block Source"
1108: "Major mode for editing Forth block source files, derived from
1109: `forth-mode'. Differences to `forth-mode' are:
1110: * files are converted to block format, when written (`buffer-file-format'
1111: is set to `(forth-blocks)')
1112: * `forth-show-screen' and `forth-warn-long-lines' are t by default
1113:
1114: Note that the length of lines in block files is limited to 64 characters.
1115: When writing longer lines to a block file, a warning is displayed in the
1116: echo area and the line is truncated.
1117:
1118: Another problem is imposed by block files that contain newline or tab
1119: characters. When Emacs converts such files back to block file format,
1120: it'll translate those characters to a number of spaces. However, whenever
1121: you read such a file, a warning message is displayed in the echo area,
1122: including a line number that may help you to locate and fix the problem.
1123:
1124: So have a look at the *Messages* buffer, whenever you hear (or see) Emacs'
1125: bell during block file read/write operations."
1126: (setq buffer-file-format '(forth-blocks))
1127: (setq forth-show-screen t)
1128: (setq forth-warn-long-lines t))
1.1 anton 1129:
1.44 anton 1130: (add-hook 'forth-mode-hook
1.9 anton 1131: '(lambda ()
1132: (make-local-variable 'compile-command)
1.49 ! dvdkhlng 1133: (setq compile-command "gforth ")
! 1134: (forth-hack-local-variables)
! 1135: (forth-compile-words)
! 1136: (forth-change-function (point-min) (point-max) nil)))
1.6 anton 1137:
1.7 anton 1138: (defun forth-fill-paragraph ()
1139: "Fill comments (starting with '\'; do not fill code (block style
1140: programmers who tend to fill code won't use emacs anyway:-)."
1.9 anton 1141: ; Currently only comments at the start of the line are filled.
1142: ; Something like lisp-fill-paragraph may be better. We cannot use
1143: ; fill-paragraph, because it removes the \ from the first comment
1144: ; line. Therefore we have to look for the first line of the comment
1145: ; and use fill-region.
1.7 anton 1146: (interactive)
1147: (save-excursion
1148: (beginning-of-line)
1.9 anton 1149: (while (and
1150: (= (forward-line -1) 0)
1.14 anton 1151: (looking-at "[ \t]*\\\\g?[ \t]+")))
1152: (if (not (looking-at "[ \t]*\\\\g?[ \t]+"))
1.9 anton 1153: (forward-line 1))
1154: (let ((from (point))
1155: (to (save-excursion (forward-paragraph) (point))))
1.14 anton 1156: (if (looking-at "[ \t]*\\\\g?[ \t]+")
1.9 anton 1157: (progn (goto-char (match-end 0))
1158: (set-fill-prefix)
1159: (fill-region from to nil))))))
1.7 anton 1160:
1.1 anton 1161: (defun forth-comment-indent ()
1162: (save-excursion
1163: (beginning-of-line)
1164: (if (looking-at ":[ \t]*")
1165: (progn
1166: (end-of-line)
1167: (skip-chars-backward " \t\n")
1168: (1+ (current-column)))
1169: comment-column)))
1170:
1171:
1172: ;; Forth commands
1173:
1.7 anton 1174: (defun forth-remove-tracers ()
1175: "Remove tracers of the form `~~ '. Queries the user for each occurrence."
1176: (interactive)
1.16 anton 1177: (query-replace-regexp "\\(~~ \\| ~~$\\)" "" nil))
1.7 anton 1178:
1.5 anton 1179: (defvar forth-program-name "gforth"
1.1 anton 1180: "*Program invoked by the `run-forth' command.")
1181:
1182: (defvar forth-band-name nil
1183: "*Band loaded by the `run-forth' command.")
1184:
1185: (defvar forth-program-arguments nil
1186: "*Arguments passed to the Forth program by the `run-forth' command.")
1187:
1188: (defun run-forth (command-line)
1189: "Run an inferior Forth process. Output goes to the buffer `*forth*'.
1190: With argument, asks for a command line. Split up screen and run forth
1191: in the lower portion. The current-buffer when called will stay in the
1192: upper portion of the screen, and all other windows are deleted.
1193: Call run-forth again to make the *forth* buffer appear in the lower
1194: part of the screen."
1195: (interactive
1196: (list (let ((default
1197: (or forth-process-command-line
1198: (forth-default-command-line))))
1199: (if current-prefix-arg
1200: (read-string "Run Forth: " default)
1201: default))))
1202: (setq forth-process-command-line command-line)
1203: (forth-start-process command-line)
1204: (forth-split)
1205: (forth-set-runlight forth-runlight:input))
1206:
1.28 anton 1207: (defun run-forth-if-not ()
1208: (if (not (forth-process-running-p))
1209: (run-forth forth-program-name)))
1210:
1.1 anton 1211: (defun reset-forth ()
1212: "Reset the Forth process."
1213: (interactive)
1214: (let ((process (get-process forth-program-name)))
1215: (cond ((or (not process)
1216: (not (eq (process-status process) 'run))
1217: (yes-or-no-p
1218: "The Forth process is running, are you SURE you want to reset it? "))
1219: (message "Resetting Forth process...")
1220: (forth-reload)
1221: (message "Resetting Forth process...done")))))
1222:
1223: (defun forth-default-command-line ()
1.13 pazsan 1224: (concat forth-program-name
1.1 anton 1225: (if forth-program-arguments
1226: (concat " " forth-program-arguments)
1227: "")))
1228:
1229: ;;;; Internal Variables
1230:
1231: (defvar forth-process-command-line nil
1232: "Command used to start the most recent Forth process.")
1233:
1234: (defvar forth-previous-send ""
1235: "Most recent expression transmitted to the Forth process.")
1236:
1237: (defvar forth-process-filter-queue '()
1238: "Queue used to synchronize filter actions properly.")
1239:
1240: (defvar forth-prompt "ok"
1241: "The current forth prompt string.")
1242:
1243: (defvar forth-start-hook nil
1244: "If non-nil, a procedure to call when the Forth process is started.
1245: When called, the current buffer will be the Forth process-buffer.")
1246:
1247: (defvar forth-signal-death-message nil
1248: "If non-nil, causes a message to be generated when the Forth process dies.")
1249:
1.9 anton 1250: (defvar forth-percent-height 50
1.1 anton 1251: "Tells run-forth how high the upper window should be in percent.")
1252:
1253: (defconst forth-runlight:input ?I
1254: "The character displayed when the Forth process is waiting for input.")
1255:
1256: (defvar forth-mode-string ""
1257: "String displayed in the mode line when the Forth process is running.")
1258:
1259: ;;;; Evaluation Commands
1260:
1261: (defun forth-send-string (&rest strings)
1262: "Send the string arguments to the Forth process.
1263: The strings are concatenated and terminated by a newline."
1264: (cond ((forth-process-running-p)
1265: (forth-send-string-1 strings))
1266: ((yes-or-no-p "The Forth process has died. Reset it? ")
1267: (reset-forth)
1268: (goto-char (point-max))
1269: (forth-send-string-1 strings))))
1270:
1271: (defun forth-send-string-1 (strings)
1272: (let ((string (apply 'concat strings)))
1273: (forth-send-string-2 string)))
1274:
1275: (defun forth-send-string-2 (string)
1276: (let ((process (get-process forth-program-name)))
1277: (if (not (eq (current-buffer) (get-buffer forth-program-name)))
1278: (progn
1279: (forth-process-filter-output string)
1280: (forth-process-filter:finish)))
1281: (send-string process (concat string "\n"))
1282: (if (eq (current-buffer) (process-buffer process))
1283: (set-marker (process-mark process) (point)))))
1284:
1285:
1286: (defun forth-send-region (start end)
1287: "Send the current region to the Forth process.
1288: The region is sent terminated by a newline."
1289: (interactive "r")
1290: (let ((process (get-process forth-program-name)))
1291: (if (and process (eq (current-buffer) (process-buffer process)))
1292: (progn (goto-char end)
1293: (set-marker (process-mark process) end))))
1294: (forth-send-string "\n" (buffer-substring start end) "\n"))
1295:
1296: (defun forth-end-of-paragraph ()
1297: (if (looking-at "[\t\n ]+") (skip-chars-backward "\t\n "))
1298: (if (not (re-search-forward "\n[ \t]*\n" nil t))
1299: (goto-char (point-max))))
1300:
1301: (defun forth-send-paragraph ()
1302: "Send the current or the previous paragraph to the Forth process"
1303: (interactive)
1304: (let (end)
1305: (save-excursion
1306: (forth-end-of-paragraph)
1307: (skip-chars-backward "\t\n ")
1308: (setq end (point))
1309: (if (re-search-backward "\n[ \t]*\n" nil t)
1310: (setq start (point))
1311: (goto-char (point-min)))
1312: (skip-chars-forward "\t\n ")
1313: (forth-send-region (point) end))))
1314:
1315: (defun forth-send-buffer ()
1316: "Send the current buffer to the Forth process."
1317: (interactive)
1318: (if (eq (current-buffer) (forth-process-buffer))
1319: (error "Not allowed to send this buffer's contents to Forth"))
1320: (forth-send-region (point-min) (point-max)))
1321:
1322:
1323: ;;;; Basic Process Control
1324:
1325: (defun forth-start-process (command-line)
1326: (let ((buffer (get-buffer-create "*forth*")))
1327: (let ((process (get-buffer-process buffer)))
1328: (save-excursion
1329: (set-buffer buffer)
1330: (progn (if process (delete-process process))
1331: (goto-char (point-max))
1332: (setq mode-line-process '(": %s"))
1333: (add-to-global-mode-string 'forth-mode-string)
1334: (setq process
1335: (apply 'start-process
1336: (cons forth-program-name
1337: (cons buffer
1338: (forth-parse-command-line
1339: command-line)))))
1340: (set-marker (process-mark process) (point-max))
1341: (forth-process-filter-initialize t)
1342: (forth-modeline-initialize)
1343: (set-process-sentinel process 'forth-process-sentinel)
1344: (set-process-filter process 'forth-process-filter)
1345: (run-hooks 'forth-start-hook)))
1346: buffer)))
1347:
1348: (defun forth-parse-command-line (string)
1349: (setq string (substitute-in-file-name string))
1350: (let ((start 0)
1351: (result '()))
1352: (while start
1353: (let ((index (string-match "[ \t]" string start)))
1354: (setq start
1355: (cond ((not index)
1356: (setq result
1357: (cons (substring string start)
1358: result))
1359: nil)
1360: ((= index start)
1361: (string-match "[^ \t]" string start))
1362: (t
1363: (setq result
1364: (cons (substring string start index)
1365: result))
1366: (1+ index))))))
1367: (nreverse result)))
1368:
1369:
1370: (defun forth-process-running-p ()
1371: "True iff there is a Forth process whose status is `run'."
1372: (let ((process (get-process forth-program-name)))
1373: (and process
1374: (eq (process-status process) 'run))))
1375:
1376: (defun forth-process-buffer ()
1377: (let ((process (get-process forth-program-name)))
1378: (and process (process-buffer process))))
1379:
1380: ;;;; Process Filter
1381:
1382: (defun forth-process-sentinel (proc reason)
1383: (let ((inhibit-quit nil))
1384: (forth-process-filter-initialize (eq reason 'run))
1385: (if (eq reason 'run)
1386: (forth-modeline-initialize)
1387: (setq forth-mode-string "")))
1388: (if (and (not (memq reason '(run stop)))
1389: forth-signal-death-message)
1390: (progn (beep)
1391: (message
1392: "The Forth process has died! Do M-x reset-forth to restart it"))))
1393:
1394: (defun forth-process-filter-initialize (running-p)
1395: (setq forth-process-filter-queue (cons '() '()))
1396: (setq forth-prompt "ok"))
1397:
1398:
1399: (defun forth-process-filter (proc string)
1400: (forth-process-filter-output string)
1401: (forth-process-filter:finish))
1402:
1403: (defun forth-process-filter:enqueue (action)
1404: (let ((next (cons action '())))
1405: (if (cdr forth-process-filter-queue)
1406: (setcdr (cdr forth-process-filter-queue) next)
1407: (setcar forth-process-filter-queue next))
1408: (setcdr forth-process-filter-queue next)))
1409:
1410: (defun forth-process-filter:finish ()
1411: (while (car forth-process-filter-queue)
1412: (let ((next (car forth-process-filter-queue)))
1413: (setcar forth-process-filter-queue (cdr next))
1414: (if (not (cdr next))
1415: (setcdr forth-process-filter-queue '()))
1416: (apply (car (car next)) (cdr (car next))))))
1417:
1418: ;;;; Process Filter Output
1419:
1420: (defun forth-process-filter-output (&rest args)
1421: (if (not (and args
1422: (null (cdr args))
1423: (stringp (car args))
1424: (string-equal "" (car args))))
1425: (forth-process-filter:enqueue
1426: (cons 'forth-process-filter-output-1 args))))
1427:
1428: (defun forth-process-filter-output-1 (&rest args)
1429: (save-excursion
1430: (forth-goto-output-point)
1431: (apply 'insert-before-markers args)))
1432:
1433: (defun forth-guarantee-newlines (n)
1434: (save-excursion
1435: (forth-goto-output-point)
1436: (let ((stop nil))
1437: (while (and (not stop)
1438: (bolp))
1439: (setq n (1- n))
1440: (if (bobp)
1441: (setq stop t)
1442: (backward-char))))
1443: (forth-goto-output-point)
1444: (while (> n 0)
1445: (insert-before-markers ?\n)
1446: (setq n (1- n)))))
1447:
1448: (defun forth-goto-output-point ()
1449: (let ((process (get-process forth-program-name)))
1450: (set-buffer (process-buffer process))
1451: (goto-char (process-mark process))))
1452:
1453: (defun forth-modeline-initialize ()
1454: (setq forth-mode-string " "))
1455:
1456: (defun forth-set-runlight (runlight)
1457: (aset forth-mode-string 0 runlight)
1458: (forth-modeline-redisplay))
1459:
1460: (defun forth-modeline-redisplay ()
1461: (save-excursion (set-buffer (other-buffer)))
1462: (set-buffer-modified-p (buffer-modified-p))
1463: (sit-for 0))
1464:
1465: ;;;; Process Filter Operations
1466:
1467: (defun add-to-global-mode-string (x)
1468: (cond ((null global-mode-string)
1469: (setq global-mode-string (list "" x " ")))
1470: ((not (memq x global-mode-string))
1471: (setq global-mode-string
1472: (cons ""
1473: (cons x
1474: (cons " "
1475: (if (equal "" (car global-mode-string))
1476: (cdr global-mode-string)
1477: global-mode-string))))))))
1478:
1479:
1480: ;; Misc
1481:
1482: (setq auto-mode-alist (append auto-mode-alist
1.4 pazsan 1483: '(("\\.fs$" . forth-mode))))
1.1 anton 1484:
1485: (defun forth-split ()
1486: (interactive)
1487: (forth-split-1 "*forth*"))
1488:
1489: (defun forth-split-1 (buffer)
1490: (if (not (eq (window-buffer) (get-buffer buffer)))
1491: (progn
1492: (delete-other-windows)
1493: (split-window-vertically
1494: (/ (* (screen-height) forth-percent-height) 100))
1495: (other-window 1)
1496: (switch-to-buffer buffer)
1497: (goto-char (point-max))
1498: (other-window 1))))
1499:
1500: (defun forth-reload ()
1501: (interactive)
1502: (let ((process (get-process forth-program-name)))
1503: (if process (kill-process process t)))
1.28 anton 1504: (sleep-for 0 100)
1.1 anton 1505: (forth-mode))
1506:
1507:
1508: ;; Special section for forth-help
1509:
1510: (defvar forth-help-buffer "*Forth-help*"
1511: "Buffer used to display the requested documentation.")
1512:
1513: (defvar forth-help-load-path nil
1514: "List of directories to search through to find *.doc
1515: (forth-help-file-suffix) files. Nil means current default directory.
1516: The specified directories must contain at least one .doc file. If it
1517: does not and you still want the load-path to scan that directory, create
1518: an empty file dummy.doc.")
1519:
1520: (defvar forth-help-file-suffix "*.doc"
1521: "The file names to search for in each directory.")
1522:
1523: (setq forth-search-command-prefix "grep -n \"^ [^(]* ")
1524: (defvar forth-search-command-suffix "/dev/null")
1525: (defvar forth-grep-error-regexp ": No such file or directory")
1526:
1527: (defun forth-function-called-at-point ()
1528: "Return the space delimited word a point."
1529: (save-excursion
1530: (save-restriction
1531: (narrow-to-region (max (point-min) (- (point) 1000)) (point-max))
1532: (skip-chars-backward "^ \t\n" (point-min))
1533: (if (looking-at "[ \t\n]")
1534: (forward-char 1))
1535: (let (obj (p (point)))
1536: (skip-chars-forward "^ \t\n")
1537: (buffer-substring p (point))))))
1538:
1539: (defun forth-help-names-extend-comp (path-list result)
1540: (cond ((null path-list) result)
1541: ((null (car path-list))
1542: (forth-help-names-extend-comp (cdr path-list)
1543: (concat result forth-help-file-suffix " ")))
1544: (t (forth-help-names-extend-comp
1545: (cdr path-list) (concat result
1546: (expand-file-name (car path-list)) "/"
1547: forth-help-file-suffix " ")))))
1548:
1549: (defun forth-help-names-extended ()
1550: (if forth-help-load-path
1551: (forth-help-names-extend-comp forth-help-load-path "")
1552: (error "forth-help-load-path not specified")))
1553:
1554:
1.7 anton 1555: ;(define-key forth-mode-map "\C-hf" 'forth-documentation)
1.1 anton 1556:
1557: (defun forth-documentation (function)
1558: "Display the full documentation of FORTH word."
1559: (interactive
1560: (let ((fn (forth-function-called-at-point))
1561: (enable-recursive-minibuffers t)
1562: search-list
1563: val)
1564: (setq val (read-string (format "Describe forth word (default %s): " fn)))
1565: (list (if (equal val "") fn val))))
1566: (forth-get-doc (concat forth-search-command-prefix
1567: (grep-regexp-quote (concat function " ("))
1568: "[^)]*\-\-\" " (forth-help-names-extended)
1569: forth-search-command-suffix))
1570: (message "C-x C-m switches back to the forth interaction window"))
1571:
1572: (defun forth-get-doc (command)
1573: "Display the full documentation of command."
1574: (let ((curwin (get-buffer-window (window-buffer)))
1575: reswin
1576: pointmax)
1577: (with-output-to-temp-buffer forth-help-buffer
1578: (progn
1579: (call-process "sh" nil forth-help-buffer t "-c" command)
1580: (setq reswin (get-buffer-window forth-help-buffer))))
1581: (setq reswin (get-buffer-window forth-help-buffer))
1582: (select-window reswin)
1583: (save-excursion
1584: (goto-char (setq pointmax (point-max)))
1585: (insert "--------------------\n\n"))
1586: (let (fd doc)
1587: (while (setq fd (forth-get-file-data pointmax))
1588: (setq doc (forth-get-doc-string fd))
1589: (save-excursion
1590: (goto-char (point-max))
1591: (insert (substring (car fd) (string-match "[^/]*$" (car fd)))
1592: ":\n\n" doc "\n")))
1593: (if (not doc)
1594: (progn (goto-char (point-max)) (insert "Not found"))))
1595: (select-window curwin)))
1596:
1597: (defun forth-skip-error-lines ()
1598: (let ((lines 0))
1599: (save-excursion
1600: (while (re-search-forward forth-grep-error-regexp nil t)
1601: (beginning-of-line)
1602: (forward-line 1)
1603: (setq lines (1+ lines))))
1604: (forward-line lines)))
1605:
1606: (defun forth-get-doc-string (fd)
1607: "Find file (car fd) and extract documentation from line (nth 1 fd)."
1608: (let (result)
1609: (save-window-excursion
1610: (find-file (car fd))
1611: (goto-line (nth 1 fd))
1612: (if (not (eq (nth 1 fd) (1+ (count-lines (point-min) (point)))))
1613: (error "forth-get-doc-string: serious error"))
1614: (if (not (re-search-backward "\n[\t ]*\n" nil t))
1615: (goto-char (point-min))
1616: (goto-char (match-end 0)))
1617: (let ((p (point)))
1618: (if (not (re-search-forward "\n[\t ]*\n" nil t))
1619: (goto-char (point-max)))
1620: (setq result (buffer-substring p (point))))
1621: (bury-buffer (current-buffer)))
1622: result))
1623:
1624: (defun forth-get-file-data (limit)
1625: "Parse grep output and return '(filename line#) list. Return nil when
1626: passing limit."
1627: (forth-skip-error-lines)
1628: (if (< (point) limit)
1629: (let ((result (forth-get-file-data-cont limit)))
1630: (forward-line 1)
1631: (beginning-of-line)
1632: result)))
1633:
1634: (defun forth-get-file-data-cont (limit)
1635: (let (result)
1636: (let ((p (point)))
1637: (skip-chars-forward "^:")
1638: (setq result (buffer-substring p (point))))
1639: (if (< (point) limit)
1640: (let ((p (1+ (point))))
1641: (forward-char 1)
1642: (skip-chars-forward "^:")
1643: (list result (string-to-int (buffer-substring p (point))))))))
1644:
1645: (defun grep-regexp-quote (str)
1646: (let ((i 0) (m 1) (res ""))
1647: (while (/= m 0)
1648: (setq m (string-to-char (substring str i)))
1649: (if (/= m 0)
1650: (progn
1651: (setq i (1+ i))
1652: (if (string-match (regexp-quote (char-to-string m))
1653: ".*\\^$[]")
1654: (setq res (concat res "\\")))
1655: (setq res (concat res (char-to-string m))))))
1656: res))
1657:
1658:
1.9 anton 1659: (define-key forth-mode-map "\C-x\C-e" 'compile)
1.1 anton 1660: (define-key forth-mode-map "\C-x\C-n" 'next-error)
1661: (require 'compile "compile")
1662:
1.6 anton 1663: (defvar forth-compile-command "gforth ")
1.9 anton 1664: ;(defvar forth-compilation-window-percent-height 30)
1.1 anton 1665:
1666: (defun forth-compile (command)
1667: (interactive (list (setq forth-compile-command (read-string "Compile command: " forth-compile-command))))
1668: (forth-split-1 "*compilation*")
1669: (setq ctools-compile-command command)
1670: (compile1 ctools-compile-command "No more errors"))
1671:
1672:
1.12 pazsan 1673: ;;; Forth menu
1674: ;;; Mikael Karlsson <qramika@eras70.ericsson.se>
1675:
1676: (cond ((string-match "XEmacs\\|Lucid" emacs-version)
1677: (require 'func-menu)
1678:
1679: (defconst fume-function-name-regexp-forth
1680: "^\\(:\\)[ \t]+\\([^ \t]*\\)"
1681: "Expression to get word definitions in Forth.")
1682:
1683: (setq fume-function-name-regexp-alist
1684: (append '((forth-mode . fume-function-name-regexp-forth)
1685: ) fume-function-name-regexp-alist))
1686:
1687: ;; Find next forth word in the buffer
1688: (defun fume-find-next-forth-function-name (buffer)
1689: "Searches for the next forth word in BUFFER."
1690: (set-buffer buffer)
1691: (if (re-search-forward fume-function-name-regexp nil t)
1692: (let ((beg (match-beginning 2))
1693: (end (match-end 2)))
1694: (cons (buffer-substring beg end) beg))))
1695:
1696: (setq fume-find-function-name-method-alist
1697: (append '((forth-mode . fume-find-next-forth-function-name))))
1698:
1699: ))
1700: ;;; End Forth menu
1701:
1702: ;;; File folding of forth-files
1703: ;;; uses outline
1704: ;;; Toggle activation with M-x fold-f (when editing a forth-file)
1705: ;;; Use f9 to expand, f10 to hide, Or the menubar in xemacs
1706: ;;;
1707: ;;; Works most of the times but loses sync with the cursor occasionally
1708: ;;; Could be improved by also folding on comments
1709:
1710: (require 'outline)
1711:
1.29 pazsan 1712: (defun f-outline-level ()
1713: (cond ((looking-at "\\`\\\\")
1714: 0)
1715: ((looking-at "\\\\ SEC")
1716: 0)
1717: ((looking-at "\\\\ \\\\ .*")
1718: 0)
1719: ((looking-at "\\\\ DEFS")
1720: 1)
1721: ((looking-at "\\/\\* ")
1722: 1)
1723: ((looking-at ": .*")
1724: 1)
1725: ((looking-at "\\\\G")
1726: 2)
1727: ((looking-at "[ \t]+\\\\")
1728: 3))
1729: )
1.12 pazsan 1730:
1731: (defun fold-f ()
1732: (interactive)
1733: (add-hook 'outline-minor-mode-hook 'hide-body)
1734:
1735: ; outline mode header start, i.e. find word definitions
1.29 pazsan 1736: ;;; (setq outline-regexp "^\\(:\\)[ \t]+\\([^ \t]*\\)")
1737: (setq outline-regexp "\\`\\\\\\|:\\|\\\\ SEC\\|\\\\G\\|[ \t]+\\\\\\|\\\\ DEFS\\|\\/\\*\\|\\\\ \\\\ .*")
1738: (setq outline-level 'f-outline-level)
1.12 pazsan 1739:
1740: (outline-minor-mode)
1.30 anton 1741: (define-key outline-minor-mode-map '(shift up) 'hide-sublevels)
1742: (define-key outline-minor-mode-map '(shift right) 'show-children)
1743: (define-key outline-minor-mode-map '(shift left) 'hide-subtree)
1744: (define-key outline-minor-mode-map '(shift down) 'show-subtree)
1.29 pazsan 1745:
1.12 pazsan 1746: )
1.29 pazsan 1747:
1748: ;;(define-key global-map '(shift up) 'fold-f)
1749:
1.12 pazsan 1750: ;;; end file folding
1751:
1752: ;;; func-menu is a package that scans your source file for function definitions
1753: ;;; and makes a menubar entry that lets you jump to any particular function
1754: ;;; definition by selecting it from the menu. The following code turns this on
1755: ;;; for all of the recognized languages. Scanning the buffer takes some time,
1756: ;;; but not much.
1757: ;;;
1758: (cond ((string-match "XEmacs\\|Lucid" emacs-version)
1759: (require 'func-menu)
1760: ;; (define-key global-map 'f8 'function-menu)
1761: (add-hook 'find-fible-hooks 'fume-add-menubar-entry)
1.30 anton 1762: ; (define-key global-map "\C-cg" 'fume-prompt-function-goto)
1763: ; (define-key global-map '(shift button3) 'mouse-function-menu)
1.29 pazsan 1764: ))
1765:
1.48 pazsan 1766: ;;; gforth.el ends here
1.29 pazsan 1767:
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