Mercurial > hg > xemacs-beta
annotate lisp/hyper-apropos.el @ 5606:7c383c5784ed
Zero-terminate when passing strings to parse_integer(), lread.c
src/ChangeLog addition:
2011-12-03 Aidan Kehoe <kehoea@parhasard.net>
* lread.c (read1):
Zero-terminate what we're giving to parse_integer(), it needs it
if it's calling bignum_set_string().
author | Aidan Kehoe <kehoea@parhasard.net> |
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date | Sat, 03 Dec 2011 15:55:14 +0000 |
parents | 91b3aa59f49b |
children | bbe4146603db |
rev | line source |
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428 | 1 ;;; hyper-apropos.el --- Hypertext emacs lisp documentation interface. |
2 | |
502 | 3 ;; Copyright (C) 1997 Free Software Foundation, Inc. |
428 | 4 ;; Copyright (C) 1994, 1995 Tinker Systems and INS Engineering Corp. |
5 ;; Copyright (C) 1995 Sun Microsystems. | |
1275 | 6 ;; Copyright (C) 1996, 2003 Ben Wing. |
428 | 7 |
502 | 8 ;; Author: Jonathan Stigelman <stig@xemacs.org> |
9 ;; Maintainer: XEmacs Development Team | |
428 | 10 ;; Keywords: lisp, tools, help, docs, matching |
11 | |
12 ;; This file is part of XEmacs. | |
13 | |
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14 ;; XEmacs is free software: you can redistribute it and/or modify it |
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15 ;; under the terms of the GNU General Public License as published by the |
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16 ;; Free Software Foundation, either version 3 of the License, or (at your |
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17 ;; option) any later version. |
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18 |
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19 ;; XEmacs is distributed in the hope that it will be useful, but WITHOUT |
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20 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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21 ;; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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22 ;; for more details. |
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23 |
428 | 24 ;; You should have received a copy of the GNU General Public License |
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25 ;; along with XEmacs. If not, see <http://www.gnu.org/licenses/>. |
428 | 26 |
27 ;;; Synched up with: Not in FSF. | |
28 | |
29 ;;; Commentary: | |
30 | |
31 ;; based upon emacs-apropos.el by Frank C. Guida <fcg@philabs.philips.com> | |
32 ;; | |
33 ;; Rather than run apropos and print all the documentation at once, | |
34 ;; I find it easier to view a "table of contents" first, then | |
35 ;; get the details for symbols as you need them. | |
36 ;; | |
37 ;; This version of apropos prints two lists of symbols matching the | |
38 ;; given regexp: functions/macros and variables/constants. | |
39 ;; | |
40 ;; The user can then do the following: | |
41 ;; | |
42 ;; - add an additional regexp to narrow the search | |
43 ;; - display documentation for the current symbol | |
44 ;; - find the tag for the current symbol | |
45 ;; - show any keybindings if the current symbol is a command | |
46 ;; - invoke functions | |
47 ;; - set variables | |
48 ;; | |
49 ;; An additional feature is the ability to search the current tags | |
50 ;; table, allowing you to interrogate functions not yet loaded (this | |
51 ;; isn't available with the standard package). | |
52 ;; | |
53 ;; Mouse bindings and menus are provided for XEmacs. | |
54 ;; | |
55 ;; additions by Ben Wing <ben@xemacs.org> July 1995: | |
56 ;; added support for function aliases, made programmer's apropos be the | |
57 ;; default, various other hacking. | |
58 ;; Massive changes by Christoph Wedler <wedler@fmi.uni-passau.de> | |
59 ;; Some changes for XEmacs 20.3 by hniksic | |
60 | |
440 | 61 ;; #### The maintainer is supposed to be stig, but I haven't seen him |
428 | 62 ;; around for ages. The real maintainer for the moment is Hrvoje |
63 ;; Niksic <hniksic@xemacs.org>. | |
64 | |
65 ;;; Code: | |
66 | |
67 (defgroup hyper-apropos nil | |
68 "Hypertext emacs lisp documentation interface." | |
69 :group 'docs | |
70 :group 'lisp | |
71 :group 'tools | |
72 :group 'help | |
73 :group 'matching) | |
74 | |
75 (defcustom hyper-apropos-show-brief-docs t | |
76 "*If non-nil, display some documentation in the \"*Hyper Apropos*\" buffer. | |
77 Setting this to nil will speed up searches." | |
78 :type 'boolean | |
79 :group 'hyper-apropos) | |
80 (define-obsolete-variable-alias | |
81 'hypropos-show-brief-docs 'hyper-apropos-show-brief-docs) | |
502 | 82 |
83 ;; I changed the following to true because it's obviously more useful | |
84 ;; that way, and is a very good example of following the principle of | |
85 ;; least surprise. --ben | |
428 | 86 |
87 (defcustom hyper-apropos-programming-apropos t | |
88 "*If non-nil, list all the functions and variables. | |
89 This will cause more output to be generated, and take a longer time. | |
502 | 90 Otherwise, only the interactive functions and user variables will be listed. |
428 | 91 |
502 | 92 If you're thinking of setting it to nil, consider that you can get the |
93 equivalent just by using the command \\[command-hyper-apropos]. (And if you do set it to nil, | |
94 you can get the full output by using \\[universal-argument] \\[hyper-apropos].)" | |
428 | 95 :type 'boolean |
96 :group 'hyper-apropos) | |
97 (define-obsolete-variable-alias | |
98 'hypropos-programming-apropos 'hyper-apropos-programming-apropos) | |
99 | |
100 (defcustom hyper-apropos-shrink-window nil | |
101 "*If non-nil, shrink *Hyper Help* buffer if possible." | |
102 :type 'boolean | |
103 :group 'hyper-apropos) | |
104 (define-obsolete-variable-alias | |
105 'hypropos-shrink-window 'hyper-apropos-shrink-window) | |
106 | |
107 (defcustom hyper-apropos-prettyprint-long-values t | |
108 "*If non-nil, then try to beautify the printing of very long values." | |
109 :type 'boolean | |
110 :group 'hyper-apropos) | |
111 (define-obsolete-variable-alias | |
112 'hypropos-prettyprint-long-values 'hyper-apropos-prettyprint-long-values) | |
113 | |
114 (defgroup hyper-apropos-faces nil | |
115 "Faces defined by hyper-apropos." | |
116 :prefix "hyper-apropos-" | |
117 :group 'faces) | |
118 | |
119 (defface hyper-apropos-documentation | |
120 '((((class color) (background light)) | |
121 (:foreground "darkred")) | |
122 (((class color) (background dark)) | |
123 (:foreground "gray90"))) | |
124 "Hyper-apropos documentation." | |
125 :group 'hyper-apropos-faces) | |
126 | |
127 (defface hyper-apropos-hyperlink | |
128 '((((class color) (background light)) | |
129 (:foreground "blue4")) | |
130 (((class color) (background dark)) | |
131 (:foreground "lightseagreen")) | |
132 (t | |
133 (:bold t))) | |
134 "Hyper-apropos hyperlinks." | |
135 :group 'hyper-apropos-faces) | |
136 | |
137 (defface hyper-apropos-major-heading '((t (:bold t))) | |
138 "Hyper-apropos major heading." | |
139 :group 'hyper-apropos-faces) | |
140 | |
141 (defface hyper-apropos-section-heading '((t (:bold t :italic t))) | |
142 "Hyper-apropos section heading." | |
143 :group 'hyper-apropos-faces) | |
144 | |
145 (defface hyper-apropos-heading '((t (:bold t))) | |
146 "Hyper-apropos heading." | |
147 :group 'hyper-apropos-faces) | |
148 | |
149 (defface hyper-apropos-warning '((t (:bold t :foreground "red"))) | |
150 "Hyper-apropos warning." | |
151 :group 'hyper-apropos-faces) | |
152 | |
153 ;;; Internal variables below this point | |
154 | |
155 (defvar hyper-apropos-ref-buffer) | |
156 (defvar hyper-apropos-prev-wconfig) | |
157 | |
158 (defvar hyper-apropos-help-map | |
159 (let ((map (make-sparse-keymap))) | |
160 (suppress-keymap map) | |
161 (set-keymap-name map 'hyper-apropos-help-map) | |
162 ;; movement | |
163 (define-key map " " 'scroll-up) | |
164 (define-key map "b" 'scroll-down) | |
165 (define-key map [delete] 'scroll-down) | |
166 (define-key map [backspace] 'scroll-down) | |
167 (define-key map "/" 'isearch-forward) | |
168 (define-key map "?" 'isearch-backward) | |
169 ;; follow links | |
170 (define-key map [return] 'hyper-apropos-get-doc) | |
171 (define-key map "s" 'hyper-apropos-set-variable) | |
172 (define-key map "t" 'hyper-apropos-find-tag) | |
173 (define-key map "l" 'hyper-apropos-last-help) | |
174 (define-key map "c" 'hyper-apropos-customize-variable) | |
175 (define-key map "f" 'hyper-apropos-find-function) | |
718 | 176 (define-key map "v" 'hyper-apropos-find-variable) |
428 | 177 (define-key map [button2] 'hyper-apropos-mouse-get-doc) |
178 (define-key map [button3] 'hyper-apropos-popup-menu) | |
179 ;; for the totally hardcore... | |
180 (define-key map "D" 'hyper-apropos-disassemble) | |
181 ;; administrativa | |
182 (define-key map "a" 'hyper-apropos) | |
183 (define-key map "n" 'hyper-apropos) | |
184 (define-key map "q" 'hyper-apropos-quit) | |
185 map) | |
186 "Keybindings for the *Hyper Help* buffer and the *Hyper Apropos* buffer") | |
187 (define-obsolete-variable-alias | |
188 'hypropos-help-map 'hyper-apropos-help-map) | |
189 | |
190 (defvar hyper-apropos-map | |
191 (let ((map (make-sparse-keymap))) | |
192 (set-keymap-name map 'hyper-apropos-map) | |
193 (set-keymap-parents map (list hyper-apropos-help-map)) | |
194 ;; slightly different scrolling... | |
195 (define-key map " " 'hyper-apropos-scroll-up) | |
196 (define-key map "b" 'hyper-apropos-scroll-down) | |
197 (define-key map [delete] 'hyper-apropos-scroll-down) | |
198 (define-key map [backspace] 'hyper-apropos-scroll-down) | |
199 ;; act on the current line... | |
200 (define-key map "w" 'hyper-apropos-where-is) | |
201 (define-key map "i" 'hyper-apropos-invoke-fn) | |
202 ;; this is already defined in the parent-keymap above, isn't it? | |
203 ;; (define-key map "s" 'hyper-apropos-set-variable) | |
204 ;; more administrativa... | |
205 (define-key map "P" 'hyper-apropos-toggle-programming-flag) | |
206 (define-key map "k" 'hyper-apropos-add-keyword) | |
207 (define-key map "e" 'hyper-apropos-eliminate-keyword) | |
208 map) | |
209 "Keybindings for the *Hyper Apropos* buffer. | |
3061 | 210 This map inherits from `hyper-apropos-help-map'.") |
428 | 211 (define-obsolete-variable-alias |
212 'hypropos-map 'hyper-apropos-map) | |
213 | |
214 ;;(defvar hyper-apropos-mousable-keymap | |
215 ;; (let ((map (make-sparse-keymap))) | |
216 ;; (define-key map [button2] 'hyper-apropos-mouse-get-doc) | |
217 ;; map)) | |
218 | |
219 (defvar hyper-apropos-mode-hook nil | |
220 "*User function run after hyper-apropos mode initialization. Usage: | |
221 \(add-hook 'hyper-apropos-mode-hook #'(lambda () ... your init forms ...)).") | |
222 | |
223 ;; ---------------------------------------------------------------------- ;; | |
224 | |
225 (defconst hyper-apropos-junk-regexp | |
226 "^Apropos\\|^Functions\\|^Variables\\|^$") | |
227 | |
228 (defvar hyper-apropos-currently-showing nil) ; symbol documented in | |
229 ; help buffer now | |
230 (defvar hyper-apropos-help-history nil) ; chain of symbols followed as links in | |
231 ; help buffer | |
232 (defvar hyper-apropos-face-history nil) | |
233 ;;;(defvar hyper-apropos-variable-history nil) | |
234 ;;;(defvar hyper-apropos-function-history nil) | |
235 (defvar hyper-apropos-regexp-history nil) | |
236 (defvar hyper-apropos-last-regexp nil) ; regex used for last apropos | |
237 (defconst hyper-apropos-apropos-buf "*Hyper Apropos*") | |
238 (defconst hyper-apropos-help-buf "*Hyper Help*") | |
239 | |
240 ;;;###autoload | |
502 | 241 (defun command-hyper-apropos (regexp) |
242 "Display lists of commands and user options matching REGEXP | |
243 in buffer \"*Hyper Apropos*\". See `hyper-apropos-mode' for a | |
244 description of the available commands in a Hyper-Apropos buffer." | |
245 (interactive (list (read-from-minibuffer | |
246 "List symbols matching regexp: " | |
247 nil nil nil 'hyper-apropos-regexp-history))) | |
248 (let ((hyper-apropos-programming-apropos nil)) | |
249 (hyper-apropos regexp nil))) | |
250 | |
251 ;;;###autoload | |
428 | 252 (defun hyper-apropos (regexp toggle-apropos) |
253 "Display lists of functions and variables matching REGEXP | |
254 in buffer \"*Hyper Apropos*\". If optional prefix arg is given, then the | |
255 value of `hyper-apropos-programming-apropos' is toggled for this search. | |
502 | 256 See `hyper-apropos-mode' for a description of the available commands in |
257 a Hyper-Apropos buffer." | |
258 (interactive (list (read-from-minibuffer | |
259 "List symbols matching regexp: " | |
260 nil nil nil 'hyper-apropos-regexp-history) | |
428 | 261 current-prefix-arg)) |
262 (or (memq major-mode '(hyper-apropos-mode hyper-apropos-help-mode)) | |
263 (setq hyper-apropos-prev-wconfig (current-window-configuration))) | |
264 (if (string= "" regexp) | |
265 (if (get-buffer hyper-apropos-apropos-buf) | |
434 | 266 (progn |
267 (setq regexp hyper-apropos-last-regexp) | |
268 (if toggle-apropos | |
269 (hyper-apropos-toggle-programming-flag) | |
270 (message "Using last search results"))) | |
428 | 271 (error "Be more specific...")) |
272 (set-buffer (get-buffer-create hyper-apropos-apropos-buf)) | |
273 (setq buffer-read-only nil) | |
274 (erase-buffer) | |
275 (if toggle-apropos | |
434 | 276 (if (local-variable-p 'hyper-apropos-programming-apropos |
277 (current-buffer)) | |
278 (setq hyper-apropos-programming-apropos | |
279 (not hyper-apropos-programming-apropos)) | |
280 (set (make-local-variable 'hyper-apropos-programming-apropos) | |
281 (not (default-value 'hyper-apropos-programming-apropos))))) | |
428 | 282 (let ((flist (apropos-internal regexp |
283 (if hyper-apropos-programming-apropos | |
284 #'fboundp | |
285 #'commandp))) | |
286 (vlist (apropos-internal regexp | |
287 (if hyper-apropos-programming-apropos | |
288 #'boundp | |
289 #'user-variable-p)))) | |
290 (insert-face (format "Apropos search for: %S\n\n" regexp) | |
291 'hyper-apropos-major-heading) | |
292 (insert-face "* = command (M-x) or user-variable.\n" | |
293 'hyper-apropos-documentation) | |
294 (insert-face "\ | |
295 a = autoloaded, b = byte-compiled, i = internal, l = lambda, m = macro.\n\n" | |
296 'hyper-apropos-documentation) | |
297 (insert-face "Functions and Macros:\n\n" 'hyper-apropos-major-heading) | |
1275 | 298 (hyper-apropos-grok-functions flist nil) |
299 (insert-face "\n\nObsolete Functions and Macros:\n\n" 'hyper-apropos-major-heading) | |
300 (hyper-apropos-grok-functions flist t) | |
428 | 301 (insert-face "\n\nVariables and Constants:\n\n" |
302 'hyper-apropos-major-heading) | |
1275 | 303 (hyper-apropos-grok-variables vlist nil) |
304 (insert-face "\n\nObsolete Variables and Constants:\n\n" | |
305 'hyper-apropos-major-heading) | |
306 (hyper-apropos-grok-variables vlist t) | |
428 | 307 (goto-char (point-min)))) |
308 (switch-to-buffer hyper-apropos-apropos-buf) | |
309 (hyper-apropos-mode regexp)) | |
310 | |
311 (defun hyper-apropos-toggle-programming-flag () | |
312 (interactive) | |
313 (with-current-buffer hyper-apropos-apropos-buf | |
314 (set (make-local-variable 'hyper-apropos-programming-apropos) | |
315 (not hyper-apropos-programming-apropos))) | |
316 (message "Re-running apropos...") | |
317 (hyper-apropos hyper-apropos-last-regexp nil)) | |
318 | |
1275 | 319 (defun hyper-apropos-grok-functions (fns obsolete-p) |
320 (loop for fn in fns | |
321 if (eq (function-obsolete-p fn) obsolete-p) do | |
322 (let* ((bind (symbol-function fn)) | |
323 (type (cond ((subrp bind) ?i) | |
428 | 324 ((compiled-function-p bind) ?b) |
325 ((consp bind) (or (cdr | |
326 (assq (car bind) '((autoload . ?a) | |
327 (lambda . ?l) | |
328 (macro . ?m)))) | |
329 ??)) | |
1275 | 330 (t ?\ )))) |
428 | 331 (insert type (if (commandp fn) "* " " ")) |
332 (let ((e (insert-face (format "%S" fn) 'hyper-apropos-hyperlink))) | |
333 (set-extent-property e 'mouse-face 'highlight)) | |
334 (insert-char ?\ (let ((l (- 30 (length (format "%S" fn))))) | |
335 (if (natnump l) l 0))) | |
336 (and hyper-apropos-show-brief-docs | |
1275 | 337 (let ((doc |
338 (if (and obsolete-p | |
339 (symbolp fn) | |
340 (symbolp (symbol-function fn))) | |
341 (function-obsoleteness-doc fn) | |
342 ;; A symbol's function slot can point to an unbound symbol. | |
343 ;; In that case, `documentation' will fail. | |
2275 | 344 (condition-case nil |
345 (documentation fn) | |
346 (void-function "(alias for undefined function)") | |
347 (error "(unexpected error from `documention')"))))) | |
1275 | 348 (if (and |
349 doc | |
350 (string-match | |
351 "\\`([^\n\t )]+[\t ]*\\([^\n)]+\\)?)\\(:[\t ]*\\|\n?\\'\\)" | |
352 doc)) | |
353 (setq doc (substring doc (match-end 0) | |
354 (string-match "\n" doc)))) | |
355 ;; Skip errant newlines at beginning of doc | |
356 (if (and doc | |
357 (string-match "\\`\n+" doc)) | |
358 (setq doc (substring doc (match-end 0)))) | |
359 (insert-face (if doc | |
360 (concat " - " | |
361 (substring doc 0 | |
362 (string-match "\n" doc))) | |
363 " - Not documented.") | |
364 'hyper-apropos-documentation))) | |
428 | 365 (insert ?\n)))) |
366 | |
1275 | 367 (defun hyper-apropos-grok-variables (vars obsolete-p) |
368 (loop for var in vars | |
369 if (eq (variable-obsolete-p var) obsolete-p) do | |
370 (let ((userp (user-variable-p var))) | |
428 | 371 (insert (if userp " * " " ")) |
372 (let ((e (insert-face (format "%S" var) 'hyper-apropos-hyperlink))) | |
373 (set-extent-property e 'mouse-face 'highlight)) | |
374 (insert-char ?\ (let ((l (- 30 (length (format "%S" var))))) | |
375 (if (natnump l) l 0))) | |
376 (and hyper-apropos-show-brief-docs | |
1275 | 377 (let ((doc |
378 (if (and obsolete-p (variable-alias var)) | |
379 (variable-obsoleteness-doc var) | |
380 (documentation-property var 'variable-documentation)))) | |
381 ;; Skip errant newlines at beginning of doc | |
382 (if (and doc | |
383 (string-match "\\`\n+" doc)) | |
384 (setq doc (substring doc (match-end 0)))) | |
385 (insert-face (if doc | |
386 (concat " - " (substring | |
387 doc (if userp 1 0) | |
388 (string-match "\n" doc))) | |
389 " - Not documented.") | |
390 'hyper-apropos-documentation))) | |
428 | 391 (insert ?\n)))) |
392 | |
393 ;; ---------------------------------------------------------------------- ;; | |
394 | |
395 (defun hyper-apropos-mode (regexp) | |
396 "Improved apropos mode for displaying Emacs documentation. Function and | |
397 variable names are displayed in the buffer \"*Hyper Apropos*\". | |
398 | |
399 Functions are preceded by a single character to indicates their types: | |
400 a = autoloaded, b = byte-compiled, i = internal, l = lambda, m = macro. | |
401 Interactive functions are also preceded by an asterisk. | |
402 Variables are preceded by an asterisk if they are user variables. | |
403 | |
404 General Commands: | |
405 | |
406 SPC - scroll documentation or apropos window forward | |
407 b - scroll documentation or apropos window backward | |
408 k - eliminate all hits that don't contain keyword | |
409 n - new search | |
410 / - isearch-forward | |
411 q - quit and restore previous window configuration | |
412 | |
413 Operations for Symbol on Current Line: | |
414 | |
415 RET - toggle display of symbol's documentation | |
416 (also on button2 in xemacs) | |
417 w - show the keybinding if symbol is a command | |
418 i - invoke function on current line | |
419 s - set value of variable on current line | |
420 t - display the C or lisp source (find-tag)" | |
421 (delete-other-windows) | |
422 (setq mode-name "Hyper-Apropos" | |
423 major-mode 'hyper-apropos-mode | |
424 buffer-read-only t | |
425 truncate-lines t | |
426 hyper-apropos-last-regexp regexp | |
427 modeline-buffer-identification | |
428 (list (cons modeline-buffer-id-left-extent "Hyper Apropos: ") | |
429 (cons modeline-buffer-id-right-extent (concat "\"" regexp "\"")))) | |
430 (use-local-map hyper-apropos-map) | |
431 (run-hooks 'hyper-apropos-mode-hook)) | |
432 | |
433 ;; ---------------------------------------------------------------------- ;; | |
434 | |
435 ;; similar to `describe-key-briefly', copied from help.el by CW | |
436 | |
437 ;;;###autoload | |
438 (defun hyper-describe-key (key) | |
439 (interactive "kDescribe key: ") | |
440 (hyper-describe-key-briefly key t)) | |
441 | |
442 ;;;###autoload | |
443 (defun hyper-describe-key-briefly (key &optional show) | |
444 (interactive "kDescribe key briefly: \nP") | |
445 (let (menup defn interm final msg) | |
446 (setq defn (key-or-menu-binding key 'menup)) | |
447 (if (or (null defn) (integerp defn)) | |
448 (or (numberp show) (message "%s is undefined" (key-description key))) | |
449 (cond ((stringp defn) | |
450 (setq interm defn | |
451 final (key-binding defn))) | |
452 ((vectorp defn) | |
453 (setq interm (append defn nil)) | |
454 (while (and interm | |
455 (member (key-binding (vector (car interm))) | |
456 '(universal-argument digit-argument))) | |
457 (setq interm (cdr interm))) | |
458 (while (and interm | |
459 (not (setq final (key-binding (vconcat interm))))) | |
460 (setq interm (butlast interm))) | |
461 (if final | |
462 (setq interm (vconcat interm)) | |
463 (setq interm defn | |
464 final (key-binding defn))))) | |
465 (setq msg (format | |
466 "%s runs %s%s%s" | |
467 ;; This used to say 'This menu item' but it could also | |
468 ;; be a scrollbar event. We can't distinguish at the | |
469 ;; moment. | |
470 (if menup "This item" (key-description key)) | |
471 ;;(if (symbolp defn) defn (key-description defn)) | |
472 (if (symbolp defn) defn (prin1-to-string defn)) | |
473 (if final (concat ", " (key-description interm) " runs ") "") | |
474 (if final | |
475 (if (symbolp final) final (prin1-to-string final)) | |
476 ""))) | |
477 (if (numberp show) | |
478 (or (not (symbolp defn)) | |
479 (memq (symbol-function defn) | |
480 '(zkey-init-kbd-macro zkey-init-kbd-fn)) | |
481 (progn (princ msg) (princ "\n"))) | |
482 (message "%s" msg) | |
483 (if final (setq defn final)) | |
484 (if (and (or (symbolp defn) (symbolp (setq defn (car-safe defn)))) | |
485 defn | |
486 show) | |
438 | 487 (hyper-apropos-get-doc defn t)) |
488 (or (memq major-mode '(hyper-apropos-mode hyper-apropos-help-mode)) | |
489 (setq hyper-apropos-prev-wconfig (current-window-configuration))))))) | |
428 | 490 |
491 ;;;###autoload | |
492 (defun hyper-describe-face (symbol &optional this-ref-buffer) | |
493 "Describe face.. | |
494 See also `hyper-apropos' and `hyper-describe-function'." | |
495 ;; #### - perhaps a prefix arg should suppress the prompt... | |
496 (interactive | |
497 (let (v val) | |
498 (setq v (hyper-apropos-this-symbol)) ; symbol under point | |
499 (or (find-face v) | |
500 (setq v (variable-at-point))) | |
501 (setq val (let ((enable-recursive-minibuffers t)) | |
502 (completing-read | |
503 (concat (if (hyper-apropos-follow-ref-buffer current-prefix-arg) | |
504 "Follow face" | |
505 "Describe face") | |
506 (if v | |
507 (format " (default %s): " v) | |
508 ": ")) | |
509 (mapcar #'(lambda (x) (list (symbol-name x))) | |
510 (face-list)) | |
438 | 511 nil t nil 'hyper-apropos-face-history |
512 (and v (symbol-name v))))) | |
513 (list (intern-soft val) | |
428 | 514 current-prefix-arg))) |
515 (if (null symbol) | |
516 (message "Sorry, nothing to describe.") | |
517 (or (memq major-mode '(hyper-apropos-mode hyper-apropos-help-mode)) | |
518 (setq hyper-apropos-prev-wconfig (current-window-configuration))) | |
519 (hyper-apropos-get-doc symbol t nil this-ref-buffer))) | |
520 | |
521 ;;;###autoload | |
522 (defun hyper-describe-variable (symbol &optional this-ref-buffer) | |
523 "Hypertext drop-in replacement for `describe-variable'. | |
524 See also `hyper-apropos' and `hyper-describe-function'." | |
525 ;; #### - perhaps a prefix arg should suppress the prompt... | |
526 (interactive (list (hyper-apropos-read-variable-symbol | |
527 (if (hyper-apropos-follow-ref-buffer current-prefix-arg) | |
528 "Follow variable" | |
529 "Describe variable")) | |
530 current-prefix-arg)) | |
531 (if (null symbol) | |
532 (message "Sorry, nothing to describe.") | |
533 (or (memq major-mode '(hyper-apropos-mode hyper-apropos-help-mode)) | |
534 (setq hyper-apropos-prev-wconfig (current-window-configuration))) | |
535 (hyper-apropos-get-doc symbol t nil this-ref-buffer))) | |
536 | |
537 ;;;###autoload | |
538 (defun hyper-where-is (symbol) | |
539 "Print message listing key sequences that invoke specified command." | |
540 (interactive (list (hyper-apropos-read-function-symbol "Where is function"))) | |
541 (if (null symbol) | |
542 (message "Sorry, nothing to describe.") | |
543 (where-is symbol))) | |
544 | |
545 ;;;###autoload | |
546 (defun hyper-describe-function (symbol &optional this-ref-buffer) | |
547 "Hypertext replacement for `describe-function'. Unlike `describe-function' | |
548 in that the symbol under the cursor is the default if it is a function. | |
549 See also `hyper-apropos' and `hyper-describe-variable'." | |
550 ;; #### - perhaps a prefix arg should suppress the prompt... | |
551 (interactive (list (hyper-apropos-read-function-symbol | |
552 (if (hyper-apropos-follow-ref-buffer current-prefix-arg) | |
553 "Follow function" | |
554 "Describe function")) | |
555 current-prefix-arg)) | |
556 (if (null symbol) | |
557 (message "Sorry, nothing to describe.") | |
558 (or (memq major-mode '(hyper-apropos-mode hyper-apropos-help-mode)) | |
559 (setq hyper-apropos-prev-wconfig (current-window-configuration))) | |
560 (hyper-apropos-get-doc symbol t nil this-ref-buffer))) | |
561 | |
562 ;;;###autoload | |
563 (defun hyper-apropos-read-variable-symbol (prompt &optional predicate) | |
564 "Hypertext drop-in replacement for `describe-variable'. | |
565 See also `hyper-apropos' and `hyper-describe-function'." | |
566 ;; #### - perhaps a prefix arg should suppress the prompt... | |
567 (or predicate (setq predicate 'boundp)) | |
568 (let (v val) | |
569 (setq v (hyper-apropos-this-symbol)) ; symbol under point | |
570 (or (funcall predicate v) | |
571 (setq v (variable-at-point))) | |
572 (or (funcall predicate v) | |
573 (setq v nil)) | |
574 (setq val (let ((enable-recursive-minibuffers t)) | |
575 (completing-read | |
576 (concat prompt | |
577 (if v | |
578 (format " (default %s): " v) | |
579 ": ")) | |
438 | 580 obarray predicate t nil 'variable-history |
581 (and v (symbol-name v))))) | |
582 (intern-soft val))) | |
583 | |
428 | 584 ;;;###autoload |
585 (define-obsolete-function-alias | |
586 'hypropos-read-variable-symbol 'hyper-apropos-read-variable-symbol) | |
587 | |
588 (defun hyper-apropos-read-function-symbol (prompt) | |
589 "Read function symbol from minibuffer." | |
590 (let ((fn (hyper-apropos-this-symbol)) | |
591 val) | |
592 (or (fboundp fn) | |
593 (setq fn (function-at-point))) | |
594 (setq val (let ((enable-recursive-minibuffers t)) | |
595 (completing-read (if fn | |
596 (format "%s (default %s): " prompt fn) | |
597 (format "%s: " prompt)) | |
598 obarray 'fboundp t nil | |
438 | 599 'function-history |
600 (and fn (symbol-name fn))))) | |
601 (intern-soft val))) | |
428 | 602 |
603 (defun hyper-apropos-last-help (arg) | |
604 "Go back to the last symbol documented in the *Hyper Help* buffer." | |
605 (interactive "P") | |
606 (let ((win (get-buffer-window hyper-apropos-help-buf))) | |
607 (or arg (setq arg (if win 1 0))) | |
608 (cond ((= arg 0)) | |
609 ((<= (length hyper-apropos-help-history) arg) | |
610 ;; go back as far as we can... | |
611 (setcdr (nreverse hyper-apropos-help-history) nil)) | |
612 (t | |
613 (setq hyper-apropos-help-history | |
614 (nthcdr arg hyper-apropos-help-history)))) | |
615 (if (or win (> arg 0)) | |
616 (hyper-apropos-get-doc (car hyper-apropos-help-history) t) | |
617 (display-buffer hyper-apropos-help-buf)))) | |
618 | |
619 (defun hyper-apropos-insert-face (string &optional face) | |
620 "Insert STRING and fontify some parts with face `hyper-apropos-hyperlink'." | |
621 (let ((beg (point)) end) | |
622 (insert-face string (or face 'hyper-apropos-documentation)) | |
623 (setq end (point)) | |
624 (goto-char beg) | |
625 (while (re-search-forward | |
626 "`\\([-a-zA-Z0-9_][-a-zA-Z0-9_][-a-zA-Z0-9_.]+\\)'" | |
627 end 'limit) | |
628 (let ((e (make-extent (match-beginning 1) (match-end 1)))) | |
629 (set-extent-face e 'hyper-apropos-hyperlink) | |
630 (set-extent-property e 'mouse-face 'highlight))) | |
631 (goto-char beg) | |
632 (while (re-search-forward | |
633 "M-x \\([-a-zA-Z0-9_][-a-zA-Z0-9_][-a-zA-Z0-9_.]+\\)" | |
634 end 'limit) | |
635 (let ((e (make-extent (match-beginning 1) (match-end 1)))) | |
636 (set-extent-face e 'hyper-apropos-hyperlink) | |
637 (set-extent-property e 'mouse-face 'highlight))))) | |
638 | |
639 (defun hyper-apropos-insert-keybinding (keys string) | |
640 (if keys | |
641 (insert " (" string " bound to \"" | |
642 (mapconcat 'key-description | |
643 (sort* keys #'< :key #'length) | |
644 "\", \"") | |
645 "\")\n"))) | |
646 | |
647 (defun hyper-apropos-insert-section-heading (alias-desc &optional desc) | |
648 (or desc (setq desc alias-desc | |
649 alias-desc nil)) | |
650 (if alias-desc | |
651 (setq desc (concat alias-desc | |
652 (if (memq (aref desc 0) | |
653 '(?a ?e ?i ?o ?u)) | |
654 ", an " ", a ") | |
655 desc))) | |
656 (aset desc 0 (upcase (aref desc 0))) ; capitalize | |
657 (goto-char (point-max)) | |
658 (newline 3) (delete-blank-lines) (newline 2) | |
659 (hyper-apropos-insert-face desc 'hyper-apropos-section-heading)) | |
660 | |
661 (defun hyper-apropos-insert-value (string symbol val) | |
662 (insert-face string 'hyper-apropos-heading) | |
663 (insert (if (symbol-value symbol) | |
664 (if (or (null val) (eq val t) (integerp val)) | |
665 (prog1 | |
666 (symbol-value symbol) | |
667 (set symbol nil)) | |
668 "see below") | |
669 "is void"))) | |
670 | |
671 (defun hyper-apropos-follow-ref-buffer (this-ref-buffer) | |
672 (and (not this-ref-buffer) | |
673 (eq major-mode 'hyper-apropos-help-mode) | |
674 hyper-apropos-ref-buffer | |
675 (buffer-live-p hyper-apropos-ref-buffer))) | |
676 | |
677 (defun hyper-apropos-get-alias (symbol alias-p next-symbol &optional use) | |
678 "Return (TERMINAL-SYMBOL . ALIAS-DESC)." | |
679 (let (aliases) | |
680 (while (funcall alias-p symbol) | |
681 (setq aliases (cons (if use (funcall use symbol) symbol) aliases)) | |
682 (setq symbol (funcall next-symbol symbol))) | |
683 (cons symbol | |
684 (and aliases | |
685 (concat "an alias for `" | |
686 (mapconcat 'symbol-name | |
687 (nreverse aliases) | |
688 "',\nwhich is an alias for `") | |
689 "'"))))) | |
690 | |
691 (defun hyper-apropos-get-doc (&optional symbol force type this-ref-buffer) | |
692 ;; #### - update this docstring | |
693 "Toggle display of documentation for the symbol on the current line." | |
694 ;; SYMBOL is the symbol to document. FORCE, if non-nil, means to | |
695 ;; regenerate the documentation even if it already seems to be there. And | |
696 ;; TYPE, if present, forces the generation of only variable documentation | |
697 ;; or only function documentation. Normally, if both are present, then | |
698 ;; both will be generated. | |
699 ;; | |
700 ;; TYPES TO IMPLEMENT: obsolete face | |
701 ;; | |
702 (interactive) | |
703 (or symbol | |
704 (setq symbol (hyper-apropos-this-symbol))) | |
705 (or type | |
706 (setq type '(function variable face))) | |
707 (if (and (eq hyper-apropos-currently-showing symbol) | |
708 (get-buffer hyper-apropos-help-buf) | |
709 (get-buffer-window hyper-apropos-help-buf) | |
710 (not force)) | |
711 ;; we're already displaying this help, so toggle its display. | |
712 (delete-windows-on hyper-apropos-help-buf) | |
713 ;; OK, we've got to refresh and display it... | |
714 (or (eq symbol (car hyper-apropos-help-history)) | |
715 (setq hyper-apropos-help-history | |
716 (if (eq major-mode 'hyper-apropos-help-mode) | |
717 ;; if we're following a link in the help buffer, then | |
718 ;; record that in the help history. | |
719 (cons symbol hyper-apropos-help-history) | |
720 ;; otherwise clear the history because it's a new search. | |
721 (list symbol)))) | |
722 (save-excursion | |
723 (if (hyper-apropos-follow-ref-buffer this-ref-buffer) | |
724 (set-buffer hyper-apropos-ref-buffer) | |
725 (setq hyper-apropos-ref-buffer (current-buffer))) | |
726 (let (standard-output | |
727 ok beg | |
728 newsym symtype doc obsolete | |
729 (local mode-name) | |
730 global local-str global-str | |
731 font fore back undl | |
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732 aliases alias-desc desc arglist) |
428 | 733 (save-excursion |
734 (set-buffer (get-buffer-create hyper-apropos-help-buf)) | |
735 ;;(setq standard-output (current-buffer)) | |
736 (setq buffer-read-only nil) | |
737 (erase-buffer) | |
738 (insert-face (format "`%s'" symbol) 'hyper-apropos-major-heading) | |
739 (insert (format " (buffer: %s, mode: %s)\n" | |
740 (buffer-name hyper-apropos-ref-buffer) | |
741 local))) | |
742 ;; function ---------------------------------------------------------- | |
743 (and (memq 'function type) | |
744 (fboundp symbol) | |
745 (progn | |
746 (setq ok t) | |
747 (setq aliases (hyper-apropos-get-alias (symbol-function symbol) | |
748 'symbolp | |
749 'symbol-function) | |
750 newsym (car aliases) | |
751 alias-desc (cdr aliases)) | |
752 (if (eq 'macro (car-safe newsym)) | |
753 (setq desc "macro" | |
754 newsym (cdr newsym)) | |
755 (setq desc "function")) | |
756 (setq symtype (cond ((subrp newsym) 'subr) | |
757 ((compiled-function-p newsym) 'bytecode) | |
758 ((eq (car-safe newsym) 'autoload) 'autoload) | |
759 ((eq (car-safe newsym) 'lambda) 'lambda)) | |
760 desc (concat (if (commandp symbol) "interactive ") | |
761 (cdr (assq symtype | |
762 '((subr . "built-in ") | |
763 (bytecode . "compiled Lisp ") | |
764 (autoload . "autoloaded Lisp ") | |
765 (lambda . "Lisp ")))) | |
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766 desc ",\n(loaded from \"" |
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767 (or (symbol-file symbol 'defun) |
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768 "[no file information available]") |
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769 "\")") |
428 | 770 local (current-local-map) |
771 global (current-global-map) | |
772 obsolete (get symbol 'byte-obsolete-info) | |
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773 doc (function-documentation symbol t) |
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774 arglist (let ((farglist (function-arglist symbol))) |
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775 (if farglist |
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776 (replace-in-string |
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777 farglist |
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778 (format "^(%s " |
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779 (regexp-quote (symbol-name symbol))) |
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780 "(") |
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781 "[not available]"))) |
428 | 782 (save-excursion |
783 (set-buffer hyper-apropos-help-buf) | |
784 (goto-char (point-max)) | |
785 (setq standard-output (current-buffer)) | |
786 (hyper-apropos-insert-section-heading alias-desc desc) | |
787 (insert ":\n") | |
788 (if local | |
789 (hyper-apropos-insert-keybinding | |
790 (where-is-internal symbol (list local) nil nil nil) | |
791 "locally")) | |
792 (hyper-apropos-insert-keybinding | |
793 (where-is-internal symbol (list global) nil nil nil) | |
794 "globally") | |
795 (insert "\n") | |
796 (if obsolete | |
797 (hyper-apropos-insert-face | |
798 (format "%s is an obsolete function; %s\n\n" symbol | |
799 (if (stringp (car obsolete)) | |
800 (car obsolete) | |
801 (format "use `%s' instead." (car obsolete)))) | |
802 'hyper-apropos-warning)) | |
803 (setq beg (point)) | |
804 (insert-face "arguments: " 'hyper-apropos-heading) | |
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805 (princ arglist) |
428 | 806 (insert "\n\n") |
807 (hyper-apropos-insert-face doc) | |
808 (insert "\n") | |
809 (indent-rigidly beg (point) 2)))) | |
810 ;; variable ---------------------------------------------------------- | |
811 (and (memq 'variable type) | |
812 (or (boundp symbol) (default-boundp symbol)) | |
813 (progn | |
814 (setq ok t) | |
815 (setq aliases (hyper-apropos-get-alias symbol | |
816 'variable-alias | |
817 'variable-alias | |
818 'variable-alias) | |
819 newsym (car aliases) | |
820 alias-desc (cdr aliases)) | |
821 (setq symtype (or (local-variable-p newsym (current-buffer)) | |
822 (and (local-variable-p newsym | |
823 (current-buffer) t) | |
824 'auto-local)) | |
825 desc (concat (and (get newsym 'custom-type) | |
826 "customizable ") | |
827 (if (user-variable-p newsym) | |
828 "user variable" | |
829 "variable") | |
830 (cond ((eq symtype t) ", buffer-local") | |
831 ((eq symtype 'auto-local) | |
832 ", local when set"))) | |
833 local (and (boundp newsym) | |
834 (symbol-value newsym)) | |
835 local-str (and (boundp newsym) | |
836 (prin1-to-string local)) | |
837 global (and (eq symtype t) | |
838 (default-boundp newsym) | |
839 (default-value newsym)) | |
840 global-str (and (eq symtype t) | |
841 (default-boundp newsym) | |
842 (prin1-to-string global)) | |
843 obsolete (get symbol 'byte-obsolete-variable) | |
844 doc (or (documentation-property symbol | |
845 'variable-documentation) | |
846 "variable not documented")) | |
847 (save-excursion | |
848 (set-buffer hyper-apropos-help-buf) | |
849 (goto-char (point-max)) | |
850 (setq standard-output (current-buffer)) | |
851 (hyper-apropos-insert-section-heading alias-desc desc) | |
852 (when (and (user-variable-p newsym) | |
853 (get newsym 'custom-type)) | |
854 (let ((e (make-extent (point-at-bol) (point)))) | |
855 (set-extent-property e 'mouse-face 'highlight) | |
856 (set-extent-property e 'help-echo | |
857 (format "Customize %s" newsym)) | |
858 (set-extent-property | |
859 e 'hyper-apropos-custom | |
860 `(lambda () (customize-variable (quote ,newsym)))))) | |
861 (insert ":\n\n") | |
862 (setq beg (point)) | |
863 (if obsolete | |
864 (hyper-apropos-insert-face | |
865 (format "%s is an obsolete function; %s\n\n" symbol | |
866 (if (stringp obsolete) | |
867 obsolete | |
868 (format "use `%s' instead." obsolete))) | |
869 'hyper-apropos-warning)) | |
870 ;; generally, the value of the variable is short and the | |
871 ;; documentation of the variable long, so it's desirable | |
872 ;; to see all of the value and the start of the | |
873 ;; documentation. Some variables, though, have huge and | |
874 ;; nearly meaningless values that force you to page | |
875 ;; forward just to find the doc string. That is | |
876 ;; undesirable. | |
877 (if (and (or (null local-str) (< (length local-str) 69)) | |
878 (or (null global-str) (< (length global-str) 69))) | |
879 ; 80 cols. docstrings assume this. | |
880 (progn (insert-face "value: " 'hyper-apropos-heading) | |
881 (insert (or local-str "is void")) | |
882 (if (eq symtype t) | |
883 (progn | |
884 (insert "\n") | |
885 (insert-face "default value: " 'hyper-apropos-heading) | |
886 (insert (or global-str "is void")))) | |
887 (insert "\n\n") | |
888 (hyper-apropos-insert-face doc)) | |
889 (hyper-apropos-insert-value "value: " 'local-str local) | |
890 (if (eq symtype t) | |
891 (progn | |
892 (insert ", ") | |
893 (hyper-apropos-insert-value "default-value: " | |
894 'global-str global))) | |
895 (insert "\n\n") | |
896 (hyper-apropos-insert-face doc) | |
897 (if local-str | |
898 (progn | |
899 (newline 3) (delete-blank-lines) (newline 1) | |
900 (insert-face "value: " 'hyper-apropos-heading) | |
901 (if hyper-apropos-prettyprint-long-values | |
902 (condition-case nil | |
903 (cl-prettyprint local) | |
904 (error (insert local-str))) | |
905 (insert local-str)))) | |
906 (if global-str | |
907 (progn | |
908 (newline 3) (delete-blank-lines) (newline 1) | |
909 (insert-face "default value: " 'hyper-apropos-heading) | |
910 (if hyper-apropos-prettyprint-long-values | |
911 (condition-case nil | |
912 (cl-prettyprint global) | |
913 (error (insert global-str))) | |
914 (insert global-str))))) | |
915 (indent-rigidly beg (point) 2)))) | |
916 ;; face -------------------------------------------------------------- | |
917 (and (memq 'face type) | |
918 (find-face symbol) | |
919 (progn | |
920 (setq ok t) | |
921 (copy-face symbol 'hyper-apropos-temp-face 'global) | |
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922 (mapc #'(lambda (property) |
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923 (setq symtype (face-property-instance symbol |
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924 property)) |
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925 (if symtype |
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926 (set-face-property 'hyper-apropos-temp-face |
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927 property |
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928 symtype))) |
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Use #'function-arglist, etc. from help.el, not reimplementing them, hyper-apropos
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parents:
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929 built-in-face-specifiers) |
428 | 930 (setq font (cons (face-property-instance symbol 'font nil 0 t) |
931 (face-property-instance symbol 'font)) | |
932 fore (cons (face-foreground-instance symbol nil 0 t) | |
933 (face-foreground-instance symbol)) | |
934 back (cons (face-background-instance symbol nil 0 t) | |
935 (face-background-instance symbol)) | |
936 undl (cons (face-underline-p symbol nil 0 t) | |
937 (face-underline-p symbol)) | |
938 doc (face-doc-string symbol)) | |
939 ;; #### - add some code here | |
940 (save-excursion | |
941 (set-buffer hyper-apropos-help-buf) | |
942 (setq standard-output (current-buffer)) | |
943 (hyper-apropos-insert-section-heading | |
944 (concat "Face" | |
945 (when (get symbol 'face-defface-spec) | |
946 (let* ((str " (customizable)") | |
947 (e (make-extent 1 (length str) str))) | |
948 (set-extent-property e 'mouse-face 'highlight) | |
949 (set-extent-property e 'help-echo | |
950 (format "Customize %s" symbol)) | |
951 (set-extent-property e 'unique t) | |
952 (set-extent-property e 'duplicable t) | |
953 (set-extent-property | |
954 e 'hyper-apropos-custom | |
955 `(lambda () (customize-face (quote ,symbol)))) | |
956 str)) | |
957 ":\n\n ")) | |
958 (insert-face "\ | |
959 ABCDEFHIJKLMNOPQRSTUVWXYZ abcdefhijklmnopqrstuvwxyz 0123456789" | |
960 'hyper-apropos-temp-face) | |
961 (newline 2) | |
962 (insert-face " Font: " 'hyper-apropos-heading) | |
963 (insert (format (if (numberp (car font)) "(%s)\n" "%s\n") | |
964 (and (cdr font) | |
965 (font-instance-name (cdr font))))) | |
966 (insert-face " Foreground: " 'hyper-apropos-heading) | |
967 (insert (format (if (numberp (car fore)) "(%s)\n" "%s\n") | |
968 (and (cdr fore) | |
969 (color-instance-name (cdr fore))))) | |
970 (insert-face " Background: " 'hyper-apropos-heading) | |
971 (insert (format (if (numberp (car back)) "(%s)\n" "%s\n") | |
972 (and (cdr back) | |
973 (color-instance-name (cdr back))))) | |
974 (insert-face " Underline: " 'hyper-apropos-heading) | |
975 (insert (format (if (numberp (car undl)) "(%s)\n" "%s\n") | |
976 (cdr undl))) | |
977 (if doc | |
978 (progn | |
979 (newline) | |
980 (setq beg (point)) | |
981 (insert doc) | |
982 (indent-rigidly beg (point) 2)))))) | |
983 ;; not bound & property list ----------------------------------------- | |
984 (or ok | |
985 (save-excursion | |
986 (set-buffer hyper-apropos-help-buf) | |
987 (hyper-apropos-insert-section-heading | |
988 "symbol is not currently bound\n"))) | |
989 (if (and (setq symtype (symbol-plist symbol)) | |
990 (or (> (length symtype) 2) | |
991 (not (memq 'variable-documentation symtype)))) | |
992 (save-excursion | |
993 (set-buffer hyper-apropos-help-buf) | |
994 (goto-char (point-max)) | |
995 (setq standard-output (current-buffer)) | |
996 (hyper-apropos-insert-section-heading "property-list:\n\n") | |
997 (while symtype | |
998 (if (memq (car symtype) | |
999 '(variable-documentation byte-obsolete-info)) | |
1000 (setq symtype (cdr symtype)) | |
1001 (insert-face (concat " " (symbol-name (car symtype)) | |
1002 ": ") | |
1003 'hyper-apropos-heading) | |
1004 (setq symtype (cdr symtype)) | |
1005 (indent-to 32) | |
1006 (insert (prin1-to-string (car symtype)) "\n")) | |
1007 (setq symtype (cdr symtype))))))) | |
1008 (save-excursion | |
1009 (set-buffer hyper-apropos-help-buf) | |
1010 (goto-char (point-min)) | |
1011 ;; pop up window and shrink it if it's wasting space | |
1012 (if hyper-apropos-shrink-window | |
1013 (shrink-window-if-larger-than-buffer | |
1014 (display-buffer (current-buffer))) | |
1015 (display-buffer (current-buffer))) | |
1016 (hyper-apropos-help-mode)) | |
1017 (setq hyper-apropos-currently-showing symbol))) | |
1018 ;;;###autoload | |
1019 (define-obsolete-function-alias | |
1020 'hypropos-get-doc 'hyper-apropos-get-doc) | |
1021 | |
1022 ; ----------------------------------------------------------------------------- | |
1023 | |
1024 (defun hyper-apropos-help-mode () | |
1025 "Major mode for hypertext XEmacs help. In this mode, you can quickly | |
1026 follow links between back and forth between the documentation strings for | |
1027 different variables and functions. Common commands: | |
1028 | |
1029 \\{hyper-apropos-help-map}" | |
1030 (setq buffer-read-only t | |
1031 major-mode 'hyper-apropos-help-mode | |
1032 mode-name "Hyper-Help") | |
1033 (set-syntax-table emacs-lisp-mode-syntax-table) | |
1034 (use-local-map hyper-apropos-help-map)) | |
1035 | |
1036 ;; ---------------------------------------------------------------------- ;; | |
1037 | |
1038 (defun hyper-apropos-scroll-up () | |
1039 "Scroll up the \"*Hyper Help*\" buffer if it's visible. | |
1040 Otherwise, scroll the selected window up." | |
1041 (interactive) | |
1042 (let ((win (get-buffer-window hyper-apropos-help-buf)) | |
1043 (owin (selected-window))) | |
1044 (if win | |
1045 (progn | |
1046 (select-window win) | |
1047 (condition-case nil | |
1048 (scroll-up nil) | |
1049 (error (goto-char (point-max)))) | |
1050 (select-window owin)) | |
1051 (scroll-up nil)))) | |
1052 | |
1053 (defun hyper-apropos-scroll-down () | |
1054 "Scroll down the \"*Hyper Help*\" buffer if it's visible. | |
1055 Otherwise, scroll the selected window down." | |
1056 (interactive) | |
1057 (let ((win (get-buffer-window hyper-apropos-help-buf)) | |
1058 (owin (selected-window))) | |
1059 (if win | |
1060 (progn | |
1061 (select-window win) | |
1062 (condition-case nil | |
1063 (scroll-down nil) | |
1064 (error (goto-char (point-max)))) | |
1065 (select-window owin)) | |
1066 (scroll-down nil)))) | |
1067 | |
1068 ;; ---------------------------------------------------------------------- ;; | |
1069 | |
1070 (defun hyper-apropos-mouse-get-doc (event) | |
1071 "Get the documentation for the symbol the mouse is on." | |
1072 (interactive "e") | |
1073 (mouse-set-point event) | |
1074 (let ((e (extent-at (point) nil 'hyper-apropos-custom))) | |
1075 (if e | |
1076 (funcall (extent-property e 'hyper-apropos-custom)) | |
1077 (save-excursion | |
1078 (let ((symbol (hyper-apropos-this-symbol))) | |
1079 (if symbol | |
1080 (hyper-apropos-get-doc symbol) | |
1081 (error "Click on a symbol"))))))) | |
1082 | |
1083 ;; ---------------------------------------------------------------------- ;; | |
1084 | |
1085 (defun hyper-apropos-add-keyword (pattern) | |
1086 "Use additional keyword to narrow regexp match. | |
1087 Deletes lines which don't match PATTERN." | |
1088 (interactive "sAdditional Keyword: ") | |
1089 (save-excursion | |
1090 (goto-char (point-min)) | |
1091 (let (buffer-read-only) | |
1092 (keep-lines (concat pattern "\\|" hyper-apropos-junk-regexp)) | |
1093 ))) | |
1094 | |
1095 (defun hyper-apropos-eliminate-keyword (pattern) | |
1096 "Use additional keyword to eliminate uninteresting matches. | |
1097 Deletes lines which match PATTERN." | |
1098 (interactive "sKeyword to eliminate: ") | |
1099 (save-excursion | |
1100 (goto-char (point-min)) | |
1101 (let (buffer-read-only) | |
1102 (flush-lines pattern)) | |
1103 )) | |
1104 | |
1105 ;; ---------------------------------------------------------------------- ;; | |
1106 | |
1107 (defun hyper-apropos-this-symbol () | |
1108 (save-excursion | |
1109 (cond ((eq major-mode 'hyper-apropos-mode) | |
1110 (beginning-of-line) | |
1111 (if (looking-at hyper-apropos-junk-regexp) | |
1112 nil | |
1113 (forward-char 3) | |
1114 (read (point-marker)))) | |
444 | 1115 ;; What's this? This ends up in the same symbol already described. |
1116 ;; ((and | |
1117 ;; (eq major-mode 'hyper-apropos-help-mode) | |
1118 ;; (> (point) (point-min))) | |
1119 ;; (save-excursion | |
1120 ;; (goto-char (point-min)) | |
1121 ;; (hyper-apropos-this-symbol))) | |
428 | 1122 (t |
1123 (let* ((st (progn | |
1124 (skip-syntax-backward "w_") | |
1125 ;; !@(*$^%%# stupid backquote implementation!!! | |
1126 (skip-chars-forward "`") | |
1127 (point))) | |
1128 (en (progn | |
1129 (skip-syntax-forward "w_") | |
1130 (skip-chars-backward ".':") ; : for Local Variables | |
1131 (point)))) | |
1132 (and (not (eq st en)) | |
1133 (intern-soft (buffer-substring st en)))))))) | |
1134 | |
1135 (defun hyper-apropos-where-is (symbol) | |
1136 "Find keybinding for symbol on current line." | |
1137 (interactive (list (hyper-apropos-this-symbol))) | |
1138 (where-is symbol)) | |
1139 | |
1140 (defun hyper-apropos-invoke-fn (fn) | |
1141 "Interactively invoke the function on the current line." | |
1142 (interactive (list (hyper-apropos-this-symbol))) | |
1143 (cond ((not (fboundp fn)) | |
1144 (error "%S is not a function" fn)) | |
1145 (t (call-interactively fn)))) | |
1146 | |
1147 ;;;###autoload | |
1148 (defun hyper-set-variable (var val &optional this-ref-buffer) | |
1149 (interactive | |
1150 (let ((var (hyper-apropos-read-variable-symbol | |
1151 (if (hyper-apropos-follow-ref-buffer current-prefix-arg) | |
1152 "In ref buffer, set user option" | |
1153 "Set user option") | |
1154 'user-variable-p))) | |
1155 (list var (hyper-apropos-read-variable-value var) current-prefix-arg))) | |
1156 (hyper-apropos-set-variable var val this-ref-buffer)) | |
1157 | |
1158 ;;;###autoload | |
1159 (defun hyper-apropos-set-variable (var val &optional this-ref-buffer) | |
1160 "Interactively set the variable on the current line." | |
1161 (interactive | |
1162 (let ((var (hyper-apropos-this-symbol))) | |
1163 (or (and var (boundp var)) | |
1164 (setq var nil)) | |
1165 (list var (hyper-apropos-read-variable-value var)))) | |
1166 (and var | |
1167 (boundp var) | |
1168 (progn | |
1169 (if (hyper-apropos-follow-ref-buffer this-ref-buffer) | |
1170 (save-excursion | |
1171 (set-buffer hyper-apropos-ref-buffer) | |
1172 (set var val)) | |
1173 (set var val)) | |
1174 (hyper-apropos-get-doc var t '(variable) this-ref-buffer)))) | |
1175 ;;;###autoload | |
1176 (define-obsolete-function-alias | |
1177 'hypropos-set-variable 'hyper-apropos-set-variable) | |
1178 | |
1179 (defun hyper-apropos-read-variable-value (var &optional this-ref-buffer) | |
1180 (and var | |
1181 (boundp var) | |
1182 (let ((prop (get var 'variable-interactive)) | |
1183 (print-readably t) | |
1184 val str) | |
1185 (hyper-apropos-get-doc var t '(variable) current-prefix-arg) | |
1186 (if prop | |
1187 (call-interactively (list 'lambda '(arg) | |
1188 (list 'interactive prop) | |
1189 'arg)) | |
1190 (setq val (if (hyper-apropos-follow-ref-buffer this-ref-buffer) | |
1191 (save-excursion | |
1192 (set-buffer hyper-apropos-ref-buffer) | |
1193 (symbol-value var)) | |
1194 (symbol-value var)) | |
1195 str (prin1-to-string val)) | |
1196 (eval-minibuffer | |
1197 (format "Set %s `%s' to value (evaluated): " | |
1198 (if (user-variable-p var) "user option" "Variable") | |
1199 var) | |
1200 (condition-case nil | |
1201 (progn | |
1202 (read str) | |
1203 (format (if (or (consp val) | |
1204 (and (symbolp val) | |
1205 (not (memq val '(t nil))))) | |
1206 "'%s" "%s") | |
1207 str)) | |
1208 (error nil))))))) | |
1209 | |
1210 (defun hyper-apropos-customize-variable () | |
1211 (interactive) | |
1212 (let ((var (hyper-apropos-this-symbol))) | |
430 | 1213 (and |
1214 (or (and var (boundp var)) | |
1215 (setq var nil)) | |
1216 (customize-variable var)))) | |
428 | 1217 |
1218 ;; ---------------------------------------------------------------------- ;; | |
1219 | |
1220 (defun hyper-apropos-find-tag (&optional tag-name) | |
1221 "Find the tag for the symbol on the current line in other window. In | |
1222 order for this to work properly, the variable `tag-table-alist' or | |
1223 `tags-file-name' must be set so that a TAGS file with tags for the emacs | |
1224 source is found for the \"*Hyper Apropos*\" buffer." | |
1225 (interactive) | |
1226 ;; there ought to be a default tags file for this... | |
1227 (or tag-name (setq tag-name (symbol-name (hyper-apropos-this-symbol)))) | |
1228 (find-tag-other-window (list tag-name))) | |
1229 | |
1230 ;; ---------------------------------------------------------------------- ;; | |
1231 | |
1232 (defun hyper-apropos-find-function (fn) | |
1233 "Find the function for the symbol on the current line in other | |
1234 window. (See also `find-function'.)" | |
1235 (interactive | |
1236 (let ((fn (hyper-apropos-this-symbol))) | |
1237 (or (fboundp fn) | |
1238 (setq fn nil)) | |
1239 (list fn))) | |
1240 (if fn | |
776 | 1241 (if-fboundp 'find-function-other-window |
1242 (find-function-other-window fn) | |
1243 (error 'unimplemented "`find-func' package unavailable")))) | |
428 | 1244 |
718 | 1245 (defun hyper-apropos-find-variable (fn) |
1246 "Find the variable for the symbol on the current line in other | |
1247 window. (See also `find-variable'.)" | |
1248 (interactive | |
1249 (let ((fn (hyper-apropos-this-symbol))) | |
1250 (or (boundp fn) | |
1251 (setq fn nil)) | |
1252 (list fn))) | |
1253 (if fn | |
776 | 1254 (if-fboundp 'find-variable-other-window |
1255 (find-variable-other-window fn) | |
1256 (error 'unimplemented "`find-func' package unavailable")))) | |
718 | 1257 |
428 | 1258 ;; ---------------------------------------------------------------------- ;; |
1259 | |
1260 (defun hyper-apropos-disassemble (sym) | |
1261 "Disassemble FUN if it is byte-coded. If it's a lambda, prettyprint it." | |
1262 (interactive (list (hyper-apropos-this-symbol))) | |
1263 (let ((fun sym) (trail nil) macrop) | |
1264 (while (and (symbolp fun) (not (memq fun trail))) | |
1265 (setq trail (cons fun trail) | |
1266 fun (symbol-function fun))) | |
1267 (and (symbolp fun) | |
1268 (error "Loop detected in function binding of `%s'" fun)) | |
1269 (setq macrop (and (consp fun) | |
1270 (eq 'macro (car fun)))) | |
1271 (cond ((compiled-function-p (if macrop (cdr fun) fun)) | |
1272 (disassemble fun) | |
1273 (set-buffer "*Disassemble*") | |
1274 (goto-char (point-min)) | |
1275 (forward-sexp 2) | |
1276 (insert (format " for function `%S'" sym)) | |
1277 ) | |
1278 ((consp fun) | |
1279 (with-current-buffer "*Disassemble*" | |
1280 (cl-prettyprint (if macrop | |
1281 (cons 'defmacro (cons sym (cdr (cdr fun)))) | |
1282 (cons 'defun (cons sym (cdr fun)))))) | |
1283 (set-buffer "*Disassemble*") | |
1284 (emacs-lisp-mode)) | |
1285 ((or (vectorp fun) (stringp fun)) | |
1286 ;; #### - do something fancy here | |
1287 (with-output-to-temp-buffer "*Disassemble*" | |
1288 (princ (format "%s is a keyboard macro:\n\n\t" sym)) | |
1289 (prin1 fun))) | |
1290 (t | |
1291 (error "Sorry, cannot disassemble `%s'" sym))))) | |
1292 | |
1293 ;; ---------------------------------------------------------------------- ;; | |
1294 | |
1295 (defun hyper-apropos-quit () | |
1296 (interactive) | |
1297 "Quit Hyper Apropos and restore original window config." | |
1298 (let ((buf (get-buffer hyper-apropos-apropos-buf))) | |
1299 (and buf (bury-buffer buf))) | |
1300 (set-window-configuration hyper-apropos-prev-wconfig)) | |
1301 | |
1302 ;; ---------------------------------------------------------------------- ;; | |
1303 | |
1304 ;;;###autoload | |
1305 (defun hyper-apropos-popup-menu (event) | |
1306 (interactive "e") | |
1307 (mouse-set-point event) | |
430 | 1308 (let* ((sym (hyper-apropos-this-symbol)) |
428 | 1309 (notjunk (not (null sym))) |
1310 (command-p (if (commandp sym) t)) | |
1311 (variable-p (and sym (boundp sym))) | |
1312 (customizable-p (and variable-p | |
1313 (get sym 'custom-type) | |
1314 t)) | |
1315 (function-p (fboundp sym)) | |
1316 (apropos-p (eq 'hyper-apropos-mode | |
1317 (save-excursion (set-buffer (event-buffer event)) | |
1318 major-mode))) | |
1319 (name (if sym (symbol-name sym) "")) | |
1320 (hyper-apropos-menu | |
1321 (delete | |
1322 nil | |
1323 (list (concat "Hyper-Help: " name) | |
1324 (vector "Display documentation" 'hyper-apropos-get-doc notjunk) | |
1325 (vector "Set variable" 'hyper-apropos-set-variable variable-p) | |
1326 (vector "Customize variable" 'hyper-apropos-customize-variable | |
1327 customizable-p) | |
1328 (vector "Show keys for" 'hyper-apropos-where-is command-p) | |
1329 (vector "Invoke command" 'hyper-apropos-invoke-fn command-p) | |
1039 | 1330 (vector "Find function" 'hyper-apropos-find-function function-p) |
1331 (vector "Find variable" 'hyper-apropos-find-variable variable-p) | |
428 | 1332 (vector "Find tag" 'hyper-apropos-find-tag notjunk) |
1333 (and apropos-p | |
1334 ["Add keyword..." hyper-apropos-add-keyword t]) | |
1335 (and apropos-p | |
1336 ["Eliminate keyword..." hyper-apropos-eliminate-keyword t]) | |
1337 (if apropos-p | |
1338 ["Programmers' Apropos" hyper-apropos-toggle-programming-flag | |
1339 :style toggle :selected hyper-apropos-programming-apropos] | |
1340 ["Programmers' Help" hyper-apropos-toggle-programming-flag | |
1341 :style toggle :selected hyper-apropos-programming-apropos]) | |
1342 (and hyper-apropos-programming-apropos | |
1343 (vector "Disassemble function" | |
1344 'hyper-apropos-disassemble | |
1345 function-p)) | |
1346 ["Help" describe-mode t] | |
1347 ["Quit" hyper-apropos-quit t] | |
1348 )))) | |
1349 (popup-menu hyper-apropos-menu))) | |
1350 ;;;###autoload | |
1351 (define-obsolete-function-alias | |
1352 'hypropos-popup-menu 'hyper-apropos-popup-menu) | |
1353 | |
1354 (provide 'hyper-apropos) | |
1355 | |
1356 ;; end of hyper-apropos.el |