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comparison lisp/hyper-apropos.el @ 428:3ecd8885ac67 r21-2-22
Import from CVS: tag r21-2-22
| author | cvs |
|---|---|
| date | Mon, 13 Aug 2007 11:28:15 +0200 |
| parents | |
| children | a5df635868b2 |
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| 1 ;;; hyper-apropos.el --- Hypertext emacs lisp documentation interface. | |
| 2 | |
| 3 ;; Copyright (C) 1997 Free Software Foundation, Inc. | |
| 4 ;; Copyright (C) 1994, 1995 Tinker Systems and INS Engineering Corp. | |
| 5 ;; Copyright (C) 1995 Sun Microsystems. | |
| 6 ;; Copyright (C) 1996 Ben Wing. | |
| 7 | |
| 8 ;; Maintainer: Jonathan Stigelman <Stig@hackvan.com> | |
| 9 ;; Keywords: lisp, tools, help, docs, matching | |
| 10 | |
| 11 ;; This file is part of XEmacs. | |
| 12 | |
| 13 ;; XEmacs is free software; you can redistribute it and/or modify | |
| 14 ;; it under the terms of the GNU General Public License as published by | |
| 15 ;; the Free Software Foundation; either version 2 of the License, or | |
| 16 ;; (at your option) any later version. | |
| 17 ;; | |
| 18 ;; XEmacs is distributed in the hope that it will be useful, | |
| 19 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 21 ;; GNU General Public License for more details. | |
| 22 ;; | |
| 23 ;; You should have received a copy of the GNU General Public License | |
| 24 ;; along with XEmacs; if not, write to the Free Software | |
| 25 ;; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
| 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 | |
| 61 ;; ### The maintainer is supposed to be stig, but I haven't seen him | |
| 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) | |
| 82 ;; I changed this to true because I think it's more useful this way. --ben | |
| 83 | |
| 84 (defcustom hyper-apropos-programming-apropos t | |
| 85 "*If non-nil, list all the functions and variables. | |
| 86 This will cause more output to be generated, and take a longer time. | |
| 87 | |
| 88 Otherwise, only the interactive functions and user variables will be listed." | |
| 89 :type 'boolean | |
| 90 :group 'hyper-apropos) | |
| 91 (define-obsolete-variable-alias | |
| 92 'hypropos-programming-apropos 'hyper-apropos-programming-apropos) | |
| 93 | |
| 94 (defcustom hyper-apropos-shrink-window nil | |
| 95 "*If non-nil, shrink *Hyper Help* buffer if possible." | |
| 96 :type 'boolean | |
| 97 :group 'hyper-apropos) | |
| 98 (define-obsolete-variable-alias | |
| 99 'hypropos-shrink-window 'hyper-apropos-shrink-window) | |
| 100 | |
| 101 (defcustom hyper-apropos-prettyprint-long-values t | |
| 102 "*If non-nil, then try to beautify the printing of very long values." | |
| 103 :type 'boolean | |
| 104 :group 'hyper-apropos) | |
| 105 (define-obsolete-variable-alias | |
| 106 'hypropos-prettyprint-long-values 'hyper-apropos-prettyprint-long-values) | |
| 107 | |
| 108 (defgroup hyper-apropos-faces nil | |
| 109 "Faces defined by hyper-apropos." | |
| 110 :prefix "hyper-apropos-" | |
| 111 :group 'faces) | |
| 112 | |
| 113 (defface hyper-apropos-documentation | |
| 114 '((((class color) (background light)) | |
| 115 (:foreground "darkred")) | |
| 116 (((class color) (background dark)) | |
| 117 (:foreground "gray90"))) | |
| 118 "Hyper-apropos documentation." | |
| 119 :group 'hyper-apropos-faces) | |
| 120 | |
| 121 (defface hyper-apropos-hyperlink | |
| 122 '((((class color) (background light)) | |
| 123 (:foreground "blue4")) | |
| 124 (((class color) (background dark)) | |
| 125 (:foreground "lightseagreen")) | |
| 126 (t | |
| 127 (:bold t))) | |
| 128 "Hyper-apropos hyperlinks." | |
| 129 :group 'hyper-apropos-faces) | |
| 130 | |
| 131 (defface hyper-apropos-major-heading '((t (:bold t))) | |
| 132 "Hyper-apropos major heading." | |
| 133 :group 'hyper-apropos-faces) | |
| 134 | |
| 135 (defface hyper-apropos-section-heading '((t (:bold t :italic t))) | |
| 136 "Hyper-apropos section heading." | |
| 137 :group 'hyper-apropos-faces) | |
| 138 | |
| 139 (defface hyper-apropos-heading '((t (:bold t))) | |
| 140 "Hyper-apropos heading." | |
| 141 :group 'hyper-apropos-faces) | |
| 142 | |
| 143 (defface hyper-apropos-warning '((t (:bold t :foreground "red"))) | |
| 144 "Hyper-apropos warning." | |
| 145 :group 'hyper-apropos-faces) | |
| 146 | |
| 147 ;;; Internal variables below this point | |
| 148 | |
| 149 (defvar hyper-apropos-ref-buffer) | |
| 150 (defvar hyper-apropos-prev-wconfig) | |
| 151 | |
| 152 (defvar hyper-apropos-help-map | |
| 153 (let ((map (make-sparse-keymap))) | |
| 154 (suppress-keymap map) | |
| 155 (set-keymap-name map 'hyper-apropos-help-map) | |
| 156 ;; movement | |
| 157 (define-key map " " 'scroll-up) | |
| 158 (define-key map "b" 'scroll-down) | |
| 159 (define-key map [delete] 'scroll-down) | |
| 160 (define-key map [backspace] 'scroll-down) | |
| 161 (define-key map "/" 'isearch-forward) | |
| 162 (define-key map "?" 'isearch-backward) | |
| 163 ;; follow links | |
| 164 (define-key map [return] 'hyper-apropos-get-doc) | |
| 165 (define-key map "s" 'hyper-apropos-set-variable) | |
| 166 (define-key map "t" 'hyper-apropos-find-tag) | |
| 167 (define-key map "l" 'hyper-apropos-last-help) | |
| 168 (define-key map "c" 'hyper-apropos-customize-variable) | |
| 169 (define-key map "f" 'hyper-apropos-find-function) | |
| 170 (define-key map [button2] 'hyper-apropos-mouse-get-doc) | |
| 171 (define-key map [button3] 'hyper-apropos-popup-menu) | |
| 172 ;; for the totally hardcore... | |
| 173 (define-key map "D" 'hyper-apropos-disassemble) | |
| 174 ;; administrativa | |
| 175 (define-key map "a" 'hyper-apropos) | |
| 176 (define-key map "n" 'hyper-apropos) | |
| 177 (define-key map "q" 'hyper-apropos-quit) | |
| 178 map) | |
| 179 "Keybindings for the *Hyper Help* buffer and the *Hyper Apropos* buffer") | |
| 180 (define-obsolete-variable-alias | |
| 181 'hypropos-help-map 'hyper-apropos-help-map) | |
| 182 | |
| 183 (defvar hyper-apropos-map | |
| 184 (let ((map (make-sparse-keymap))) | |
| 185 (set-keymap-name map 'hyper-apropos-map) | |
| 186 (set-keymap-parents map (list hyper-apropos-help-map)) | |
| 187 ;; slightly different scrolling... | |
| 188 (define-key map " " 'hyper-apropos-scroll-up) | |
| 189 (define-key map "b" 'hyper-apropos-scroll-down) | |
| 190 (define-key map [delete] 'hyper-apropos-scroll-down) | |
| 191 (define-key map [backspace] 'hyper-apropos-scroll-down) | |
| 192 ;; act on the current line... | |
| 193 (define-key map "w" 'hyper-apropos-where-is) | |
| 194 (define-key map "i" 'hyper-apropos-invoke-fn) | |
| 195 ;; this is already defined in the parent-keymap above, isn't it? | |
| 196 ;; (define-key map "s" 'hyper-apropos-set-variable) | |
| 197 ;; more administrativa... | |
| 198 (define-key map "P" 'hyper-apropos-toggle-programming-flag) | |
| 199 (define-key map "k" 'hyper-apropos-add-keyword) | |
| 200 (define-key map "e" 'hyper-apropos-eliminate-keyword) | |
| 201 map) | |
| 202 "Keybindings for the *Hyper Apropos* buffer. | |
| 203 This map inherits from `hyper-apropos-help-map.'") | |
| 204 (define-obsolete-variable-alias | |
| 205 'hypropos-map 'hyper-apropos-map) | |
| 206 | |
| 207 ;;(defvar hyper-apropos-mousable-keymap | |
| 208 ;; (let ((map (make-sparse-keymap))) | |
| 209 ;; (define-key map [button2] 'hyper-apropos-mouse-get-doc) | |
| 210 ;; map)) | |
| 211 | |
| 212 (defvar hyper-apropos-mode-hook nil | |
| 213 "*User function run after hyper-apropos mode initialization. Usage: | |
| 214 \(add-hook 'hyper-apropos-mode-hook #'(lambda () ... your init forms ...)).") | |
| 215 | |
| 216 ;; ---------------------------------------------------------------------- ;; | |
| 217 | |
| 218 (defconst hyper-apropos-junk-regexp | |
| 219 "^Apropos\\|^Functions\\|^Variables\\|^$") | |
| 220 | |
| 221 (defvar hyper-apropos-currently-showing nil) ; symbol documented in | |
| 222 ; help buffer now | |
| 223 (defvar hyper-apropos-help-history nil) ; chain of symbols followed as links in | |
| 224 ; help buffer | |
| 225 (defvar hyper-apropos-face-history nil) | |
| 226 ;;;(defvar hyper-apropos-variable-history nil) | |
| 227 ;;;(defvar hyper-apropos-function-history nil) | |
| 228 (defvar hyper-apropos-regexp-history nil) | |
| 229 (defvar hyper-apropos-last-regexp nil) ; regex used for last apropos | |
| 230 (defconst hyper-apropos-apropos-buf "*Hyper Apropos*") | |
| 231 (defconst hyper-apropos-help-buf "*Hyper Help*") | |
| 232 | |
| 233 ;;;###autoload | |
| 234 (defun hyper-apropos (regexp toggle-apropos) | |
| 235 "Display lists of functions and variables matching REGEXP | |
| 236 in buffer \"*Hyper Apropos*\". If optional prefix arg is given, then the | |
| 237 value of `hyper-apropos-programming-apropos' is toggled for this search. | |
| 238 See also `hyper-apropos-mode'." | |
| 239 (interactive (list (read-from-minibuffer "List symbols matching regexp: " | |
| 240 nil nil nil 'hyper-apropos-regexp-history) | |
| 241 current-prefix-arg)) | |
| 242 (or (memq major-mode '(hyper-apropos-mode hyper-apropos-help-mode)) | |
| 243 (setq hyper-apropos-prev-wconfig (current-window-configuration))) | |
| 244 (if (string= "" regexp) | |
| 245 (if (get-buffer hyper-apropos-apropos-buf) | |
| 246 (if toggle-apropos | |
| 247 (hyper-apropos-toggle-programming-flag) | |
| 248 (message "Using last search results")) | |
| 249 (error "Be more specific...")) | |
| 250 (set-buffer (get-buffer-create hyper-apropos-apropos-buf)) | |
| 251 (setq buffer-read-only nil) | |
| 252 (erase-buffer) | |
| 253 (if toggle-apropos | |
| 254 (set (make-local-variable 'hyper-apropos-programming-apropos) | |
| 255 (not (default-value 'hyper-apropos-programming-apropos)))) | |
| 256 (let ((flist (apropos-internal regexp | |
| 257 (if hyper-apropos-programming-apropos | |
| 258 #'fboundp | |
| 259 #'commandp))) | |
| 260 (vlist (apropos-internal regexp | |
| 261 (if hyper-apropos-programming-apropos | |
| 262 #'boundp | |
| 263 #'user-variable-p)))) | |
| 264 (insert-face (format "Apropos search for: %S\n\n" regexp) | |
| 265 'hyper-apropos-major-heading) | |
| 266 (insert-face "* = command (M-x) or user-variable.\n" | |
| 267 'hyper-apropos-documentation) | |
| 268 (insert-face "\ | |
| 269 a = autoloaded, b = byte-compiled, i = internal, l = lambda, m = macro.\n\n" | |
| 270 'hyper-apropos-documentation) | |
| 271 (insert-face "Functions and Macros:\n\n" 'hyper-apropos-major-heading) | |
| 272 (hyper-apropos-grok-functions flist) | |
| 273 (insert-face "\n\nVariables and Constants:\n\n" | |
| 274 'hyper-apropos-major-heading) | |
| 275 (hyper-apropos-grok-variables vlist) | |
| 276 (goto-char (point-min)))) | |
| 277 (switch-to-buffer hyper-apropos-apropos-buf) | |
| 278 (hyper-apropos-mode regexp)) | |
| 279 | |
| 280 (defun hyper-apropos-toggle-programming-flag () | |
| 281 (interactive) | |
| 282 (with-current-buffer hyper-apropos-apropos-buf | |
| 283 (set (make-local-variable 'hyper-apropos-programming-apropos) | |
| 284 (not hyper-apropos-programming-apropos))) | |
| 285 (message "Re-running apropos...") | |
| 286 (hyper-apropos hyper-apropos-last-regexp nil)) | |
| 287 | |
| 288 (defun hyper-apropos-grok-functions (fns) | |
| 289 (let (bind doc type) | |
| 290 (dolist (fn fns) | |
| 291 (setq bind (symbol-function fn) | |
| 292 type (cond ((subrp bind) ?i) | |
| 293 ((compiled-function-p bind) ?b) | |
| 294 ((consp bind) (or (cdr | |
| 295 (assq (car bind) '((autoload . ?a) | |
| 296 (lambda . ?l) | |
| 297 (macro . ?m)))) | |
| 298 ??)) | |
| 299 (t ?\ ))) | |
| 300 (insert type (if (commandp fn) "* " " ")) | |
| 301 (let ((e (insert-face (format "%S" fn) 'hyper-apropos-hyperlink))) | |
| 302 (set-extent-property e 'mouse-face 'highlight)) | |
| 303 (insert-char ?\ (let ((l (- 30 (length (format "%S" fn))))) | |
| 304 (if (natnump l) l 0))) | |
| 305 (and hyper-apropos-show-brief-docs | |
| 306 (setq doc | |
| 307 ;; A symbol's function slot can point to an unbound symbol. | |
| 308 ;; In that case, `documentation' will fail. | |
| 309 (ignore-errors | |
| 310 (documentation fn))) | |
| 311 (if (string-match | |
| 312 "^([^\n\t )]+[\t ]*\\([^\n)]+\\)?)\\(:[\t ]*\\|\n?\\'\\)" | |
| 313 doc) | |
| 314 (setq doc (substring doc (match-end 0) (string-match "\n" doc))) | |
| 315 t) | |
| 316 (insert-face (if doc | |
| 317 (concat " - " | |
| 318 (substring doc 0 (string-match "\n" doc))) | |
| 319 " Not documented.") | |
| 320 'hyper-apropos-documentation)) | |
| 321 (insert ?\n)))) | |
| 322 | |
| 323 (defun hyper-apropos-grok-variables (vars) | |
| 324 (let (doc userp) | |
| 325 (dolist (var vars) | |
| 326 (setq userp (user-variable-p var)) | |
| 327 (insert (if userp " * " " ")) | |
| 328 (let ((e (insert-face (format "%S" var) 'hyper-apropos-hyperlink))) | |
| 329 (set-extent-property e 'mouse-face 'highlight)) | |
| 330 (insert-char ?\ (let ((l (- 30 (length (format "%S" var))))) | |
| 331 (if (natnump l) l 0))) | |
| 332 (and hyper-apropos-show-brief-docs | |
| 333 (setq doc (documentation-property var 'variable-documentation)) | |
| 334 (insert-face (if doc | |
| 335 (concat " - " (substring doc (if userp 1 0) | |
| 336 (string-match "\n" doc))) | |
| 337 " - Not documented.") | |
| 338 'hyper-apropos-documentation)) | |
| 339 (insert ?\n)))) | |
| 340 | |
| 341 ;; ---------------------------------------------------------------------- ;; | |
| 342 | |
| 343 (defun hyper-apropos-mode (regexp) | |
| 344 "Improved apropos mode for displaying Emacs documentation. Function and | |
| 345 variable names are displayed in the buffer \"*Hyper Apropos*\". | |
| 346 | |
| 347 Functions are preceded by a single character to indicates their types: | |
| 348 a = autoloaded, b = byte-compiled, i = internal, l = lambda, m = macro. | |
| 349 Interactive functions are also preceded by an asterisk. | |
| 350 Variables are preceded by an asterisk if they are user variables. | |
| 351 | |
| 352 General Commands: | |
| 353 | |
| 354 SPC - scroll documentation or apropos window forward | |
| 355 b - scroll documentation or apropos window backward | |
| 356 k - eliminate all hits that don't contain keyword | |
| 357 n - new search | |
| 358 / - isearch-forward | |
| 359 q - quit and restore previous window configuration | |
| 360 | |
| 361 Operations for Symbol on Current Line: | |
| 362 | |
| 363 RET - toggle display of symbol's documentation | |
| 364 (also on button2 in xemacs) | |
| 365 w - show the keybinding if symbol is a command | |
| 366 i - invoke function on current line | |
| 367 s - set value of variable on current line | |
| 368 t - display the C or lisp source (find-tag)" | |
| 369 (delete-other-windows) | |
| 370 (setq mode-name "Hyper-Apropos" | |
| 371 major-mode 'hyper-apropos-mode | |
| 372 buffer-read-only t | |
| 373 truncate-lines t | |
| 374 hyper-apropos-last-regexp regexp | |
| 375 modeline-buffer-identification | |
| 376 (list (cons modeline-buffer-id-left-extent "Hyper Apropos: ") | |
| 377 (cons modeline-buffer-id-right-extent (concat "\"" regexp "\"")))) | |
| 378 (use-local-map hyper-apropos-map) | |
| 379 (run-hooks 'hyper-apropos-mode-hook)) | |
| 380 | |
| 381 ;; ---------------------------------------------------------------------- ;; | |
| 382 | |
| 383 ;; similar to `describe-key-briefly', copied from help.el by CW | |
| 384 | |
| 385 ;;;###autoload | |
| 386 (defun hyper-describe-key (key) | |
| 387 (interactive "kDescribe key: ") | |
| 388 (hyper-describe-key-briefly key t)) | |
| 389 | |
| 390 ;;;###autoload | |
| 391 (defun hyper-describe-key-briefly (key &optional show) | |
| 392 (interactive "kDescribe key briefly: \nP") | |
| 393 (let (menup defn interm final msg) | |
| 394 (setq defn (key-or-menu-binding key 'menup)) | |
| 395 (if (or (null defn) (integerp defn)) | |
| 396 (or (numberp show) (message "%s is undefined" (key-description key))) | |
| 397 (cond ((stringp defn) | |
| 398 (setq interm defn | |
| 399 final (key-binding defn))) | |
| 400 ((vectorp defn) | |
| 401 (setq interm (append defn nil)) | |
| 402 (while (and interm | |
| 403 (member (key-binding (vector (car interm))) | |
| 404 '(universal-argument digit-argument))) | |
| 405 (setq interm (cdr interm))) | |
| 406 (while (and interm | |
| 407 (not (setq final (key-binding (vconcat interm))))) | |
| 408 (setq interm (butlast interm))) | |
| 409 (if final | |
| 410 (setq interm (vconcat interm)) | |
| 411 (setq interm defn | |
| 412 final (key-binding defn))))) | |
| 413 (setq msg (format | |
| 414 "%s runs %s%s%s" | |
| 415 ;; This used to say 'This menu item' but it could also | |
| 416 ;; be a scrollbar event. We can't distinguish at the | |
| 417 ;; moment. | |
| 418 (if menup "This item" (key-description key)) | |
| 419 ;;(if (symbolp defn) defn (key-description defn)) | |
| 420 (if (symbolp defn) defn (prin1-to-string defn)) | |
| 421 (if final (concat ", " (key-description interm) " runs ") "") | |
| 422 (if final | |
| 423 (if (symbolp final) final (prin1-to-string final)) | |
| 424 ""))) | |
| 425 (if (numberp show) | |
| 426 (or (not (symbolp defn)) | |
| 427 (memq (symbol-function defn) | |
| 428 '(zkey-init-kbd-macro zkey-init-kbd-fn)) | |
| 429 (progn (princ msg) (princ "\n"))) | |
| 430 (message "%s" msg) | |
| 431 (if final (setq defn final)) | |
| 432 (if (and (or (symbolp defn) (symbolp (setq defn (car-safe defn)))) | |
| 433 defn | |
| 434 show) | |
| 435 (hyper-apropos-get-doc defn t)))))) | |
| 436 | |
| 437 ;;;###autoload | |
| 438 (defun hyper-describe-face (symbol &optional this-ref-buffer) | |
| 439 "Describe face.. | |
| 440 See also `hyper-apropos' and `hyper-describe-function'." | |
| 441 ;; #### - perhaps a prefix arg should suppress the prompt... | |
| 442 (interactive | |
| 443 (let (v val) | |
| 444 (setq v (hyper-apropos-this-symbol)) ; symbol under point | |
| 445 (or (find-face v) | |
| 446 (setq v (variable-at-point))) | |
| 447 (setq val (let ((enable-recursive-minibuffers t)) | |
| 448 (completing-read | |
| 449 (concat (if (hyper-apropos-follow-ref-buffer current-prefix-arg) | |
| 450 "Follow face" | |
| 451 "Describe face") | |
| 452 (if v | |
| 453 (format " (default %s): " v) | |
| 454 ": ")) | |
| 455 (mapcar #'(lambda (x) (list (symbol-name x))) | |
| 456 (face-list)) | |
| 457 nil t nil 'hyper-apropos-face-history))) | |
| 458 (list (if (string= val "") | |
| 459 (progn (push (symbol-name v) hyper-apropos-face-history) v) | |
| 460 (intern-soft val)) | |
| 461 current-prefix-arg))) | |
| 462 (if (null symbol) | |
| 463 (message "Sorry, nothing to describe.") | |
| 464 (or (memq major-mode '(hyper-apropos-mode hyper-apropos-help-mode)) | |
| 465 (setq hyper-apropos-prev-wconfig (current-window-configuration))) | |
| 466 (hyper-apropos-get-doc symbol t nil this-ref-buffer))) | |
| 467 | |
| 468 ;;;###autoload | |
| 469 (defun hyper-describe-variable (symbol &optional this-ref-buffer) | |
| 470 "Hypertext drop-in replacement for `describe-variable'. | |
| 471 See also `hyper-apropos' and `hyper-describe-function'." | |
| 472 ;; #### - perhaps a prefix arg should suppress the prompt... | |
| 473 (interactive (list (hyper-apropos-read-variable-symbol | |
| 474 (if (hyper-apropos-follow-ref-buffer current-prefix-arg) | |
| 475 "Follow variable" | |
| 476 "Describe variable")) | |
| 477 current-prefix-arg)) | |
| 478 (if (null symbol) | |
| 479 (message "Sorry, nothing to describe.") | |
| 480 (or (memq major-mode '(hyper-apropos-mode hyper-apropos-help-mode)) | |
| 481 (setq hyper-apropos-prev-wconfig (current-window-configuration))) | |
| 482 (hyper-apropos-get-doc symbol t nil this-ref-buffer))) | |
| 483 | |
| 484 ;;;###autoload | |
| 485 (defun hyper-where-is (symbol) | |
| 486 "Print message listing key sequences that invoke specified command." | |
| 487 (interactive (list (hyper-apropos-read-function-symbol "Where is function"))) | |
| 488 (if (null symbol) | |
| 489 (message "Sorry, nothing to describe.") | |
| 490 (where-is symbol))) | |
| 491 | |
| 492 ;;;###autoload | |
| 493 (defun hyper-describe-function (symbol &optional this-ref-buffer) | |
| 494 "Hypertext replacement for `describe-function'. Unlike `describe-function' | |
| 495 in that the symbol under the cursor is the default if it is a function. | |
| 496 See also `hyper-apropos' and `hyper-describe-variable'." | |
| 497 ;; #### - perhaps a prefix arg should suppress the prompt... | |
| 498 (interactive (list (hyper-apropos-read-function-symbol | |
| 499 (if (hyper-apropos-follow-ref-buffer current-prefix-arg) | |
| 500 "Follow function" | |
| 501 "Describe function")) | |
| 502 current-prefix-arg)) | |
| 503 (if (null symbol) | |
| 504 (message "Sorry, nothing to describe.") | |
| 505 (or (memq major-mode '(hyper-apropos-mode hyper-apropos-help-mode)) | |
| 506 (setq hyper-apropos-prev-wconfig (current-window-configuration))) | |
| 507 (hyper-apropos-get-doc symbol t nil this-ref-buffer))) | |
| 508 | |
| 509 ;;;###autoload | |
| 510 (defun hyper-apropos-read-variable-symbol (prompt &optional predicate) | |
| 511 "Hypertext drop-in replacement for `describe-variable'. | |
| 512 See also `hyper-apropos' and `hyper-describe-function'." | |
| 513 ;; #### - perhaps a prefix arg should suppress the prompt... | |
| 514 (or predicate (setq predicate 'boundp)) | |
| 515 (let (v val) | |
| 516 (setq v (hyper-apropos-this-symbol)) ; symbol under point | |
| 517 (or (funcall predicate v) | |
| 518 (setq v (variable-at-point))) | |
| 519 (or (funcall predicate v) | |
| 520 (setq v nil)) | |
| 521 (setq val (let ((enable-recursive-minibuffers t)) | |
| 522 (completing-read | |
| 523 (concat prompt | |
| 524 (if v | |
| 525 (format " (default %s): " v) | |
| 526 ": ")) | |
| 527 obarray predicate t nil 'variable-history))) | |
| 528 (if (string= val "") | |
| 529 (progn (push (symbol-name v) variable-history) v) | |
| 530 (intern-soft val)))) | |
| 531 ;;;###autoload | |
| 532 (define-obsolete-function-alias | |
| 533 'hypropos-read-variable-symbol 'hyper-apropos-read-variable-symbol) | |
| 534 | |
| 535 (defun hyper-apropos-read-function-symbol (prompt) | |
| 536 "Read function symbol from minibuffer." | |
| 537 (let ((fn (hyper-apropos-this-symbol)) | |
| 538 val) | |
| 539 (or (fboundp fn) | |
| 540 (setq fn (function-at-point))) | |
| 541 (setq val (let ((enable-recursive-minibuffers t)) | |
| 542 (completing-read (if fn | |
| 543 (format "%s (default %s): " prompt fn) | |
| 544 (format "%s: " prompt)) | |
| 545 obarray 'fboundp t nil | |
| 546 'function-history))) | |
| 547 (if (equal val "") | |
| 548 (progn (push (symbol-name fn) function-history) fn) | |
| 549 (intern-soft val)))) | |
| 550 | |
| 551 (defun hyper-apropos-last-help (arg) | |
| 552 "Go back to the last symbol documented in the *Hyper Help* buffer." | |
| 553 (interactive "P") | |
| 554 (let ((win (get-buffer-window hyper-apropos-help-buf))) | |
| 555 (or arg (setq arg (if win 1 0))) | |
| 556 (cond ((= arg 0)) | |
| 557 ((<= (length hyper-apropos-help-history) arg) | |
| 558 ;; go back as far as we can... | |
| 559 (setcdr (nreverse hyper-apropos-help-history) nil)) | |
| 560 (t | |
| 561 (setq hyper-apropos-help-history | |
| 562 (nthcdr arg hyper-apropos-help-history)))) | |
| 563 (if (or win (> arg 0)) | |
| 564 (hyper-apropos-get-doc (car hyper-apropos-help-history) t) | |
| 565 (display-buffer hyper-apropos-help-buf)))) | |
| 566 | |
| 567 (defun hyper-apropos-insert-face (string &optional face) | |
| 568 "Insert STRING and fontify some parts with face `hyper-apropos-hyperlink'." | |
| 569 (let ((beg (point)) end) | |
| 570 (insert-face string (or face 'hyper-apropos-documentation)) | |
| 571 (setq end (point)) | |
| 572 (goto-char beg) | |
| 573 (while (re-search-forward | |
| 574 "`\\([-a-zA-Z0-9_][-a-zA-Z0-9_][-a-zA-Z0-9_.]+\\)'" | |
| 575 end 'limit) | |
| 576 (let ((e (make-extent (match-beginning 1) (match-end 1)))) | |
| 577 (set-extent-face e 'hyper-apropos-hyperlink) | |
| 578 (set-extent-property e 'mouse-face 'highlight))) | |
| 579 (goto-char beg) | |
| 580 (while (re-search-forward | |
| 581 "M-x \\([-a-zA-Z0-9_][-a-zA-Z0-9_][-a-zA-Z0-9_.]+\\)" | |
| 582 end 'limit) | |
| 583 (let ((e (make-extent (match-beginning 1) (match-end 1)))) | |
| 584 (set-extent-face e 'hyper-apropos-hyperlink) | |
| 585 (set-extent-property e 'mouse-face 'highlight))))) | |
| 586 | |
| 587 (defun hyper-apropos-insert-keybinding (keys string) | |
| 588 (if keys | |
| 589 (insert " (" string " bound to \"" | |
| 590 (mapconcat 'key-description | |
| 591 (sort* keys #'< :key #'length) | |
| 592 "\", \"") | |
| 593 "\")\n"))) | |
| 594 | |
| 595 (defun hyper-apropos-insert-section-heading (alias-desc &optional desc) | |
| 596 (or desc (setq desc alias-desc | |
| 597 alias-desc nil)) | |
| 598 (if alias-desc | |
| 599 (setq desc (concat alias-desc | |
| 600 (if (memq (aref desc 0) | |
| 601 '(?a ?e ?i ?o ?u)) | |
| 602 ", an " ", a ") | |
| 603 desc))) | |
| 604 (aset desc 0 (upcase (aref desc 0))) ; capitalize | |
| 605 (goto-char (point-max)) | |
| 606 (newline 3) (delete-blank-lines) (newline 2) | |
| 607 (hyper-apropos-insert-face desc 'hyper-apropos-section-heading)) | |
| 608 | |
| 609 (defun hyper-apropos-insert-value (string symbol val) | |
| 610 (insert-face string 'hyper-apropos-heading) | |
| 611 (insert (if (symbol-value symbol) | |
| 612 (if (or (null val) (eq val t) (integerp val)) | |
| 613 (prog1 | |
| 614 (symbol-value symbol) | |
| 615 (set symbol nil)) | |
| 616 "see below") | |
| 617 "is void"))) | |
| 618 | |
| 619 (defun hyper-apropos-follow-ref-buffer (this-ref-buffer) | |
| 620 (and (not this-ref-buffer) | |
| 621 (eq major-mode 'hyper-apropos-help-mode) | |
| 622 hyper-apropos-ref-buffer | |
| 623 (buffer-live-p hyper-apropos-ref-buffer))) | |
| 624 | |
| 625 (defun hyper-apropos-get-alias (symbol alias-p next-symbol &optional use) | |
| 626 "Return (TERMINAL-SYMBOL . ALIAS-DESC)." | |
| 627 (let (aliases) | |
| 628 (while (funcall alias-p symbol) | |
| 629 (setq aliases (cons (if use (funcall use symbol) symbol) aliases)) | |
| 630 (setq symbol (funcall next-symbol symbol))) | |
| 631 (cons symbol | |
| 632 (and aliases | |
| 633 (concat "an alias for `" | |
| 634 (mapconcat 'symbol-name | |
| 635 (nreverse aliases) | |
| 636 "',\nwhich is an alias for `") | |
| 637 "'"))))) | |
| 638 | |
| 639 (defun hyper-apropos-get-doc (&optional symbol force type this-ref-buffer) | |
| 640 ;; #### - update this docstring | |
| 641 "Toggle display of documentation for the symbol on the current line." | |
| 642 ;; SYMBOL is the symbol to document. FORCE, if non-nil, means to | |
| 643 ;; regenerate the documentation even if it already seems to be there. And | |
| 644 ;; TYPE, if present, forces the generation of only variable documentation | |
| 645 ;; or only function documentation. Normally, if both are present, then | |
| 646 ;; both will be generated. | |
| 647 ;; | |
| 648 ;; TYPES TO IMPLEMENT: obsolete face | |
| 649 ;; | |
| 650 (interactive) | |
| 651 (or symbol | |
| 652 (setq symbol (hyper-apropos-this-symbol))) | |
| 653 (or type | |
| 654 (setq type '(function variable face))) | |
| 655 (if (and (eq hyper-apropos-currently-showing symbol) | |
| 656 (get-buffer hyper-apropos-help-buf) | |
| 657 (get-buffer-window hyper-apropos-help-buf) | |
| 658 (not force)) | |
| 659 ;; we're already displaying this help, so toggle its display. | |
| 660 (delete-windows-on hyper-apropos-help-buf) | |
| 661 ;; OK, we've got to refresh and display it... | |
| 662 (or (eq symbol (car hyper-apropos-help-history)) | |
| 663 (setq hyper-apropos-help-history | |
| 664 (if (eq major-mode 'hyper-apropos-help-mode) | |
| 665 ;; if we're following a link in the help buffer, then | |
| 666 ;; record that in the help history. | |
| 667 (cons symbol hyper-apropos-help-history) | |
| 668 ;; otherwise clear the history because it's a new search. | |
| 669 (list symbol)))) | |
| 670 (save-excursion | |
| 671 (if (hyper-apropos-follow-ref-buffer this-ref-buffer) | |
| 672 (set-buffer hyper-apropos-ref-buffer) | |
| 673 (setq hyper-apropos-ref-buffer (current-buffer))) | |
| 674 (let (standard-output | |
| 675 ok beg | |
| 676 newsym symtype doc obsolete | |
| 677 (local mode-name) | |
| 678 global local-str global-str | |
| 679 font fore back undl | |
| 680 aliases alias-desc desc) | |
| 681 (save-excursion | |
| 682 (set-buffer (get-buffer-create hyper-apropos-help-buf)) | |
| 683 ;;(setq standard-output (current-buffer)) | |
| 684 (setq buffer-read-only nil) | |
| 685 (erase-buffer) | |
| 686 (insert-face (format "`%s'" symbol) 'hyper-apropos-major-heading) | |
| 687 (insert (format " (buffer: %s, mode: %s)\n" | |
| 688 (buffer-name hyper-apropos-ref-buffer) | |
| 689 local))) | |
| 690 ;; function ---------------------------------------------------------- | |
| 691 (and (memq 'function type) | |
| 692 (fboundp symbol) | |
| 693 (progn | |
| 694 (setq ok t) | |
| 695 (setq aliases (hyper-apropos-get-alias (symbol-function symbol) | |
| 696 'symbolp | |
| 697 'symbol-function) | |
| 698 newsym (car aliases) | |
| 699 alias-desc (cdr aliases)) | |
| 700 (if (eq 'macro (car-safe newsym)) | |
| 701 (setq desc "macro" | |
| 702 newsym (cdr newsym)) | |
| 703 (setq desc "function")) | |
| 704 (setq symtype (cond ((subrp newsym) 'subr) | |
| 705 ((compiled-function-p newsym) 'bytecode) | |
| 706 ((eq (car-safe newsym) 'autoload) 'autoload) | |
| 707 ((eq (car-safe newsym) 'lambda) 'lambda)) | |
| 708 desc (concat (if (commandp symbol) "interactive ") | |
| 709 (cdr (assq symtype | |
| 710 '((subr . "built-in ") | |
| 711 (bytecode . "compiled Lisp ") | |
| 712 (autoload . "autoloaded Lisp ") | |
| 713 (lambda . "Lisp ")))) | |
| 714 desc | |
| 715 (case symtype | |
| 716 ((autoload) (format ",\n(autoloaded from \"%s\")" | |
| 717 (nth 1 newsym))) | |
| 718 ((bytecode) (format ",\n(loaded from \"%s\")" | |
| 719 (symbol-file symbol))))) | |
| 720 local (current-local-map) | |
| 721 global (current-global-map) | |
| 722 obsolete (get symbol 'byte-obsolete-info) | |
| 723 doc (or (documentation symbol) "function not documented")) | |
| 724 (save-excursion | |
| 725 (set-buffer hyper-apropos-help-buf) | |
| 726 (goto-char (point-max)) | |
| 727 (setq standard-output (current-buffer)) | |
| 728 (hyper-apropos-insert-section-heading alias-desc desc) | |
| 729 (insert ":\n") | |
| 730 (if local | |
| 731 (hyper-apropos-insert-keybinding | |
| 732 (where-is-internal symbol (list local) nil nil nil) | |
| 733 "locally")) | |
| 734 (hyper-apropos-insert-keybinding | |
| 735 (where-is-internal symbol (list global) nil nil nil) | |
| 736 "globally") | |
| 737 (insert "\n") | |
| 738 (if obsolete | |
| 739 (hyper-apropos-insert-face | |
| 740 (format "%s is an obsolete function; %s\n\n" symbol | |
| 741 (if (stringp (car obsolete)) | |
| 742 (car obsolete) | |
| 743 (format "use `%s' instead." (car obsolete)))) | |
| 744 'hyper-apropos-warning)) | |
| 745 (setq beg (point)) | |
| 746 (insert-face "arguments: " 'hyper-apropos-heading) | |
| 747 (cond ((eq symtype 'lambda) | |
| 748 (princ (or (nth 1 newsym) "()"))) | |
| 749 ((eq symtype 'bytecode) | |
| 750 (princ (or (compiled-function-arglist newsym) | |
| 751 "()"))) | |
| 752 ((and (eq symtype 'subr) | |
| 753 (string-match | |
| 754 "[\n\t ]*\narguments: ?\\((.*)\\)\n?\\'" | |
| 755 doc)) | |
| 756 (insert (substring doc | |
| 757 (match-beginning 1) | |
| 758 (match-end 1))) | |
| 759 (setq doc (substring doc 0 (match-beginning 0)))) | |
| 760 ((and (eq symtype 'subr) | |
| 761 (string-match | |
| 762 "\ | |
| 763 \[\n\t ]*([^\n\t )]+[\t ]*\\([^\n)]+\\)?)\\(:[\t ]*\\|\n?\\'\\)" | |
| 764 doc)) | |
| 765 (insert "(" | |
| 766 (if (match-end 1) | |
| 767 (substring doc | |
| 768 (match-beginning 1) | |
| 769 (match-end 1))) | |
| 770 ")") | |
| 771 (setq doc (substring doc (match-end 0)))) | |
| 772 (t (princ "[not available]"))) | |
| 773 (insert "\n\n") | |
| 774 (hyper-apropos-insert-face doc) | |
| 775 (insert "\n") | |
| 776 (indent-rigidly beg (point) 2)))) | |
| 777 ;; variable ---------------------------------------------------------- | |
| 778 (and (memq 'variable type) | |
| 779 (or (boundp symbol) (default-boundp symbol)) | |
| 780 (progn | |
| 781 (setq ok t) | |
| 782 (setq aliases (hyper-apropos-get-alias symbol | |
| 783 'variable-alias | |
| 784 'variable-alias | |
| 785 'variable-alias) | |
| 786 newsym (car aliases) | |
| 787 alias-desc (cdr aliases)) | |
| 788 (setq symtype (or (local-variable-p newsym (current-buffer)) | |
| 789 (and (local-variable-p newsym | |
| 790 (current-buffer) t) | |
| 791 'auto-local)) | |
| 792 desc (concat (and (get newsym 'custom-type) | |
| 793 "customizable ") | |
| 794 (if (user-variable-p newsym) | |
| 795 "user variable" | |
| 796 "variable") | |
| 797 (cond ((eq symtype t) ", buffer-local") | |
| 798 ((eq symtype 'auto-local) | |
| 799 ", local when set"))) | |
| 800 local (and (boundp newsym) | |
| 801 (symbol-value newsym)) | |
| 802 local-str (and (boundp newsym) | |
| 803 (prin1-to-string local)) | |
| 804 global (and (eq symtype t) | |
| 805 (default-boundp newsym) | |
| 806 (default-value newsym)) | |
| 807 global-str (and (eq symtype t) | |
| 808 (default-boundp newsym) | |
| 809 (prin1-to-string global)) | |
| 810 obsolete (get symbol 'byte-obsolete-variable) | |
| 811 doc (or (documentation-property symbol | |
| 812 'variable-documentation) | |
| 813 "variable not documented")) | |
| 814 (save-excursion | |
| 815 (set-buffer hyper-apropos-help-buf) | |
| 816 (goto-char (point-max)) | |
| 817 (setq standard-output (current-buffer)) | |
| 818 (hyper-apropos-insert-section-heading alias-desc desc) | |
| 819 (when (and (user-variable-p newsym) | |
| 820 (get newsym 'custom-type)) | |
| 821 (let ((e (make-extent (point-at-bol) (point)))) | |
| 822 (set-extent-property e 'mouse-face 'highlight) | |
| 823 (set-extent-property e 'help-echo | |
| 824 (format "Customize %s" newsym)) | |
| 825 (set-extent-property | |
| 826 e 'hyper-apropos-custom | |
| 827 `(lambda () (customize-variable (quote ,newsym)))))) | |
| 828 (insert ":\n\n") | |
| 829 (setq beg (point)) | |
| 830 (if obsolete | |
| 831 (hyper-apropos-insert-face | |
| 832 (format "%s is an obsolete function; %s\n\n" symbol | |
| 833 (if (stringp obsolete) | |
| 834 obsolete | |
| 835 (format "use `%s' instead." obsolete))) | |
| 836 'hyper-apropos-warning)) | |
| 837 ;; generally, the value of the variable is short and the | |
| 838 ;; documentation of the variable long, so it's desirable | |
| 839 ;; to see all of the value and the start of the | |
| 840 ;; documentation. Some variables, though, have huge and | |
| 841 ;; nearly meaningless values that force you to page | |
| 842 ;; forward just to find the doc string. That is | |
| 843 ;; undesirable. | |
| 844 (if (and (or (null local-str) (< (length local-str) 69)) | |
| 845 (or (null global-str) (< (length global-str) 69))) | |
| 846 ; 80 cols. docstrings assume this. | |
| 847 (progn (insert-face "value: " 'hyper-apropos-heading) | |
| 848 (insert (or local-str "is void")) | |
| 849 (if (eq symtype t) | |
| 850 (progn | |
| 851 (insert "\n") | |
| 852 (insert-face "default value: " 'hyper-apropos-heading) | |
| 853 (insert (or global-str "is void")))) | |
| 854 (insert "\n\n") | |
| 855 (hyper-apropos-insert-face doc)) | |
| 856 (hyper-apropos-insert-value "value: " 'local-str local) | |
| 857 (if (eq symtype t) | |
| 858 (progn | |
| 859 (insert ", ") | |
| 860 (hyper-apropos-insert-value "default-value: " | |
| 861 'global-str global))) | |
| 862 (insert "\n\n") | |
| 863 (hyper-apropos-insert-face doc) | |
| 864 (if local-str | |
| 865 (progn | |
| 866 (newline 3) (delete-blank-lines) (newline 1) | |
| 867 (insert-face "value: " 'hyper-apropos-heading) | |
| 868 (if hyper-apropos-prettyprint-long-values | |
| 869 (condition-case nil | |
| 870 (cl-prettyprint local) | |
| 871 (error (insert local-str))) | |
| 872 (insert local-str)))) | |
| 873 (if global-str | |
| 874 (progn | |
| 875 (newline 3) (delete-blank-lines) (newline 1) | |
| 876 (insert-face "default value: " 'hyper-apropos-heading) | |
| 877 (if hyper-apropos-prettyprint-long-values | |
| 878 (condition-case nil | |
| 879 (cl-prettyprint global) | |
| 880 (error (insert global-str))) | |
| 881 (insert global-str))))) | |
| 882 (indent-rigidly beg (point) 2)))) | |
| 883 ;; face -------------------------------------------------------------- | |
| 884 (and (memq 'face type) | |
| 885 (find-face symbol) | |
| 886 (progn | |
| 887 (setq ok t) | |
| 888 (copy-face symbol 'hyper-apropos-temp-face 'global) | |
| 889 (mapcar #'(lambda (property) | |
| 890 (setq symtype (face-property-instance symbol | |
| 891 property)) | |
| 892 (if symtype | |
| 893 (set-face-property 'hyper-apropos-temp-face | |
| 894 property | |
| 895 symtype))) | |
| 896 built-in-face-specifiers) | |
| 897 (setq font (cons (face-property-instance symbol 'font nil 0 t) | |
| 898 (face-property-instance symbol 'font)) | |
| 899 fore (cons (face-foreground-instance symbol nil 0 t) | |
| 900 (face-foreground-instance symbol)) | |
| 901 back (cons (face-background-instance symbol nil 0 t) | |
| 902 (face-background-instance symbol)) | |
| 903 undl (cons (face-underline-p symbol nil 0 t) | |
| 904 (face-underline-p symbol)) | |
| 905 doc (face-doc-string symbol)) | |
| 906 ;; #### - add some code here | |
| 907 (save-excursion | |
| 908 (set-buffer hyper-apropos-help-buf) | |
| 909 (setq standard-output (current-buffer)) | |
| 910 (hyper-apropos-insert-section-heading | |
| 911 (concat "Face" | |
| 912 (when (get symbol 'face-defface-spec) | |
| 913 (let* ((str " (customizable)") | |
| 914 (e (make-extent 1 (length str) str))) | |
| 915 (set-extent-property e 'mouse-face 'highlight) | |
| 916 (set-extent-property e 'help-echo | |
| 917 (format "Customize %s" symbol)) | |
| 918 (set-extent-property e 'unique t) | |
| 919 (set-extent-property e 'duplicable t) | |
| 920 (set-extent-property | |
| 921 e 'hyper-apropos-custom | |
| 922 `(lambda () (customize-face (quote ,symbol)))) | |
| 923 str)) | |
| 924 ":\n\n ")) | |
| 925 (insert-face "\ | |
| 926 ABCDEFHIJKLMNOPQRSTUVWXYZ abcdefhijklmnopqrstuvwxyz 0123456789" | |
| 927 'hyper-apropos-temp-face) | |
| 928 (newline 2) | |
| 929 (insert-face " Font: " 'hyper-apropos-heading) | |
| 930 (insert (format (if (numberp (car font)) "(%s)\n" "%s\n") | |
| 931 (and (cdr font) | |
| 932 (font-instance-name (cdr font))))) | |
| 933 (insert-face " Foreground: " 'hyper-apropos-heading) | |
| 934 (insert (format (if (numberp (car fore)) "(%s)\n" "%s\n") | |
| 935 (and (cdr fore) | |
| 936 (color-instance-name (cdr fore))))) | |
| 937 (insert-face " Background: " 'hyper-apropos-heading) | |
| 938 (insert (format (if (numberp (car back)) "(%s)\n" "%s\n") | |
| 939 (and (cdr back) | |
| 940 (color-instance-name (cdr back))))) | |
| 941 (insert-face " Underline: " 'hyper-apropos-heading) | |
| 942 (insert (format (if (numberp (car undl)) "(%s)\n" "%s\n") | |
| 943 (cdr undl))) | |
| 944 (if doc | |
| 945 (progn | |
| 946 (newline) | |
| 947 (setq beg (point)) | |
| 948 (insert doc) | |
| 949 (indent-rigidly beg (point) 2)))))) | |
| 950 ;; not bound & property list ----------------------------------------- | |
| 951 (or ok | |
| 952 (save-excursion | |
| 953 (set-buffer hyper-apropos-help-buf) | |
| 954 (hyper-apropos-insert-section-heading | |
| 955 "symbol is not currently bound\n"))) | |
| 956 (if (and (setq symtype (symbol-plist symbol)) | |
| 957 (or (> (length symtype) 2) | |
| 958 (not (memq 'variable-documentation symtype)))) | |
| 959 (save-excursion | |
| 960 (set-buffer hyper-apropos-help-buf) | |
| 961 (goto-char (point-max)) | |
| 962 (setq standard-output (current-buffer)) | |
| 963 (hyper-apropos-insert-section-heading "property-list:\n\n") | |
| 964 (while symtype | |
| 965 (if (memq (car symtype) | |
| 966 '(variable-documentation byte-obsolete-info)) | |
| 967 (setq symtype (cdr symtype)) | |
| 968 (insert-face (concat " " (symbol-name (car symtype)) | |
| 969 ": ") | |
| 970 'hyper-apropos-heading) | |
| 971 (setq symtype (cdr symtype)) | |
| 972 (indent-to 32) | |
| 973 (insert (prin1-to-string (car symtype)) "\n")) | |
| 974 (setq symtype (cdr symtype))))))) | |
| 975 (save-excursion | |
| 976 (set-buffer hyper-apropos-help-buf) | |
| 977 (goto-char (point-min)) | |
| 978 ;; pop up window and shrink it if it's wasting space | |
| 979 (if hyper-apropos-shrink-window | |
| 980 (shrink-window-if-larger-than-buffer | |
| 981 (display-buffer (current-buffer))) | |
| 982 (display-buffer (current-buffer))) | |
| 983 (hyper-apropos-help-mode)) | |
| 984 (setq hyper-apropos-currently-showing symbol))) | |
| 985 ;;;###autoload | |
| 986 (define-obsolete-function-alias | |
| 987 'hypropos-get-doc 'hyper-apropos-get-doc) | |
| 988 | |
| 989 ; ----------------------------------------------------------------------------- | |
| 990 | |
| 991 (defun hyper-apropos-help-mode () | |
| 992 "Major mode for hypertext XEmacs help. In this mode, you can quickly | |
| 993 follow links between back and forth between the documentation strings for | |
| 994 different variables and functions. Common commands: | |
| 995 | |
| 996 \\{hyper-apropos-help-map}" | |
| 997 (setq buffer-read-only t | |
| 998 major-mode 'hyper-apropos-help-mode | |
| 999 mode-name "Hyper-Help") | |
| 1000 (set-syntax-table emacs-lisp-mode-syntax-table) | |
| 1001 (use-local-map hyper-apropos-help-map)) | |
| 1002 | |
| 1003 ;; ---------------------------------------------------------------------- ;; | |
| 1004 | |
| 1005 (defun hyper-apropos-scroll-up () | |
| 1006 "Scroll up the \"*Hyper Help*\" buffer if it's visible. | |
| 1007 Otherwise, scroll the selected window up." | |
| 1008 (interactive) | |
| 1009 (let ((win (get-buffer-window hyper-apropos-help-buf)) | |
| 1010 (owin (selected-window))) | |
| 1011 (if win | |
| 1012 (progn | |
| 1013 (select-window win) | |
| 1014 (condition-case nil | |
| 1015 (scroll-up nil) | |
| 1016 (error (goto-char (point-max)))) | |
| 1017 (select-window owin)) | |
| 1018 (scroll-up nil)))) | |
| 1019 | |
| 1020 (defun hyper-apropos-scroll-down () | |
| 1021 "Scroll down the \"*Hyper Help*\" buffer if it's visible. | |
| 1022 Otherwise, scroll the selected window down." | |
| 1023 (interactive) | |
| 1024 (let ((win (get-buffer-window hyper-apropos-help-buf)) | |
| 1025 (owin (selected-window))) | |
| 1026 (if win | |
| 1027 (progn | |
| 1028 (select-window win) | |
| 1029 (condition-case nil | |
| 1030 (scroll-down nil) | |
| 1031 (error (goto-char (point-max)))) | |
| 1032 (select-window owin)) | |
| 1033 (scroll-down nil)))) | |
| 1034 | |
| 1035 ;; ---------------------------------------------------------------------- ;; | |
| 1036 | |
| 1037 (defun hyper-apropos-mouse-get-doc (event) | |
| 1038 "Get the documentation for the symbol the mouse is on." | |
| 1039 (interactive "e") | |
| 1040 (mouse-set-point event) | |
| 1041 (let ((e (extent-at (point) nil 'hyper-apropos-custom))) | |
| 1042 (if e | |
| 1043 (funcall (extent-property e 'hyper-apropos-custom)) | |
| 1044 (save-excursion | |
| 1045 (let ((symbol (hyper-apropos-this-symbol))) | |
| 1046 (if symbol | |
| 1047 (hyper-apropos-get-doc symbol) | |
| 1048 (error "Click on a symbol"))))))) | |
| 1049 | |
| 1050 ;; ---------------------------------------------------------------------- ;; | |
| 1051 | |
| 1052 (defun hyper-apropos-add-keyword (pattern) | |
| 1053 "Use additional keyword to narrow regexp match. | |
| 1054 Deletes lines which don't match PATTERN." | |
| 1055 (interactive "sAdditional Keyword: ") | |
| 1056 (save-excursion | |
| 1057 (goto-char (point-min)) | |
| 1058 (let (buffer-read-only) | |
| 1059 (keep-lines (concat pattern "\\|" hyper-apropos-junk-regexp)) | |
| 1060 ))) | |
| 1061 | |
| 1062 (defun hyper-apropos-eliminate-keyword (pattern) | |
| 1063 "Use additional keyword to eliminate uninteresting matches. | |
| 1064 Deletes lines which match PATTERN." | |
| 1065 (interactive "sKeyword to eliminate: ") | |
| 1066 (save-excursion | |
| 1067 (goto-char (point-min)) | |
| 1068 (let (buffer-read-only) | |
| 1069 (flush-lines pattern)) | |
| 1070 )) | |
| 1071 | |
| 1072 ;; ---------------------------------------------------------------------- ;; | |
| 1073 | |
| 1074 (defun hyper-apropos-this-symbol () | |
| 1075 (save-excursion | |
| 1076 (cond ((eq major-mode 'hyper-apropos-mode) | |
| 1077 (beginning-of-line) | |
| 1078 (if (looking-at hyper-apropos-junk-regexp) | |
| 1079 nil | |
| 1080 (forward-char 3) | |
| 1081 (read (point-marker)))) | |
| 1082 (t | |
| 1083 (let* ((st (progn | |
| 1084 (skip-syntax-backward "w_") | |
| 1085 ;; !@(*$^%%# stupid backquote implementation!!! | |
| 1086 (skip-chars-forward "`") | |
| 1087 (point))) | |
| 1088 (en (progn | |
| 1089 (skip-syntax-forward "w_") | |
| 1090 (skip-chars-backward ".':") ; : for Local Variables | |
| 1091 (point)))) | |
| 1092 (and (not (eq st en)) | |
| 1093 (intern-soft (buffer-substring st en)))))))) | |
| 1094 | |
| 1095 (defun hyper-apropos-where-is (symbol) | |
| 1096 "Find keybinding for symbol on current line." | |
| 1097 (interactive (list (hyper-apropos-this-symbol))) | |
| 1098 (where-is symbol)) | |
| 1099 | |
| 1100 (defun hyper-apropos-invoke-fn (fn) | |
| 1101 "Interactively invoke the function on the current line." | |
| 1102 (interactive (list (hyper-apropos-this-symbol))) | |
| 1103 (cond ((not (fboundp fn)) | |
| 1104 (error "%S is not a function" fn)) | |
| 1105 (t (call-interactively fn)))) | |
| 1106 | |
| 1107 ;;;###autoload | |
| 1108 (defun hyper-set-variable (var val &optional this-ref-buffer) | |
| 1109 (interactive | |
| 1110 (let ((var (hyper-apropos-read-variable-symbol | |
| 1111 (if (hyper-apropos-follow-ref-buffer current-prefix-arg) | |
| 1112 "In ref buffer, set user option" | |
| 1113 "Set user option") | |
| 1114 'user-variable-p))) | |
| 1115 (list var (hyper-apropos-read-variable-value var) current-prefix-arg))) | |
| 1116 (hyper-apropos-set-variable var val this-ref-buffer)) | |
| 1117 | |
| 1118 ;;;###autoload | |
| 1119 (defun hyper-apropos-set-variable (var val &optional this-ref-buffer) | |
| 1120 "Interactively set the variable on the current line." | |
| 1121 (interactive | |
| 1122 (let ((var (hyper-apropos-this-symbol))) | |
| 1123 (or (and var (boundp var)) | |
| 1124 (and (setq var (and (eq major-mode 'hyper-apropos-help-mode) | |
| 1125 (save-excursion | |
| 1126 (goto-char (point-min)) | |
| 1127 (hyper-apropos-this-symbol)))) | |
| 1128 (boundp var)) | |
| 1129 (setq var nil)) | |
| 1130 (list var (hyper-apropos-read-variable-value var)))) | |
| 1131 (and var | |
| 1132 (boundp var) | |
| 1133 (progn | |
| 1134 (if (hyper-apropos-follow-ref-buffer this-ref-buffer) | |
| 1135 (save-excursion | |
| 1136 (set-buffer hyper-apropos-ref-buffer) | |
| 1137 (set var val)) | |
| 1138 (set var val)) | |
| 1139 (hyper-apropos-get-doc var t '(variable) this-ref-buffer)))) | |
| 1140 ;;;###autoload | |
| 1141 (define-obsolete-function-alias | |
| 1142 'hypropos-set-variable 'hyper-apropos-set-variable) | |
| 1143 | |
| 1144 (defun hyper-apropos-read-variable-value (var &optional this-ref-buffer) | |
| 1145 (and var | |
| 1146 (boundp var) | |
| 1147 (let ((prop (get var 'variable-interactive)) | |
| 1148 (print-readably t) | |
| 1149 val str) | |
| 1150 (hyper-apropos-get-doc var t '(variable) current-prefix-arg) | |
| 1151 (if prop | |
| 1152 (call-interactively (list 'lambda '(arg) | |
| 1153 (list 'interactive prop) | |
| 1154 'arg)) | |
| 1155 (setq val (if (hyper-apropos-follow-ref-buffer this-ref-buffer) | |
| 1156 (save-excursion | |
| 1157 (set-buffer hyper-apropos-ref-buffer) | |
| 1158 (symbol-value var)) | |
| 1159 (symbol-value var)) | |
| 1160 str (prin1-to-string val)) | |
| 1161 (eval-minibuffer | |
| 1162 (format "Set %s `%s' to value (evaluated): " | |
| 1163 (if (user-variable-p var) "user option" "Variable") | |
| 1164 var) | |
| 1165 (condition-case nil | |
| 1166 (progn | |
| 1167 (read str) | |
| 1168 (format (if (or (consp val) | |
| 1169 (and (symbolp val) | |
| 1170 (not (memq val '(t nil))))) | |
| 1171 "'%s" "%s") | |
| 1172 str)) | |
| 1173 (error nil))))))) | |
| 1174 | |
| 1175 (defun hyper-apropos-customize-variable () | |
| 1176 (interactive) | |
| 1177 (let ((var (hyper-apropos-this-symbol))) | |
| 1178 (customize-variable var))) | |
| 1179 | |
| 1180 ;; ---------------------------------------------------------------------- ;; | |
| 1181 | |
| 1182 (defun hyper-apropos-find-tag (&optional tag-name) | |
| 1183 "Find the tag for the symbol on the current line in other window. In | |
| 1184 order for this to work properly, the variable `tag-table-alist' or | |
| 1185 `tags-file-name' must be set so that a TAGS file with tags for the emacs | |
| 1186 source is found for the \"*Hyper Apropos*\" buffer." | |
| 1187 (interactive) | |
| 1188 ;; there ought to be a default tags file for this... | |
| 1189 (or tag-name (setq tag-name (symbol-name (hyper-apropos-this-symbol)))) | |
| 1190 (find-tag-other-window (list tag-name))) | |
| 1191 | |
| 1192 ;; ---------------------------------------------------------------------- ;; | |
| 1193 | |
| 1194 (defun hyper-apropos-find-function (fn) | |
| 1195 "Find the function for the symbol on the current line in other | |
| 1196 window. (See also `find-function'.)" | |
| 1197 (interactive | |
| 1198 (let ((fn (hyper-apropos-this-symbol))) | |
| 1199 (or (fboundp fn) | |
| 1200 (and (setq fn (and (eq major-mode 'hyper-apropos-help-mode) | |
| 1201 (save-excursion | |
| 1202 (goto-char (point-min)) | |
| 1203 (hyper-apropos-this-symbol)))) | |
| 1204 (fboundp fn)) | |
| 1205 (setq fn nil)) | |
| 1206 (list fn))) | |
| 1207 (if fn | |
| 1208 (find-function-other-window fn))) | |
| 1209 | |
| 1210 ;; ---------------------------------------------------------------------- ;; | |
| 1211 | |
| 1212 (defun hyper-apropos-disassemble (sym) | |
| 1213 "Disassemble FUN if it is byte-coded. If it's a lambda, prettyprint it." | |
| 1214 (interactive (list (hyper-apropos-this-symbol))) | |
| 1215 (let ((fun sym) (trail nil) macrop) | |
| 1216 (while (and (symbolp fun) (not (memq fun trail))) | |
| 1217 (setq trail (cons fun trail) | |
| 1218 fun (symbol-function fun))) | |
| 1219 (and (symbolp fun) | |
| 1220 (error "Loop detected in function binding of `%s'" fun)) | |
| 1221 (setq macrop (and (consp fun) | |
| 1222 (eq 'macro (car fun)))) | |
| 1223 (cond ((compiled-function-p (if macrop (cdr fun) fun)) | |
| 1224 (disassemble fun) | |
| 1225 (set-buffer "*Disassemble*") | |
| 1226 (goto-char (point-min)) | |
| 1227 (forward-sexp 2) | |
| 1228 (insert (format " for function `%S'" sym)) | |
| 1229 ) | |
| 1230 ((consp fun) | |
| 1231 (with-current-buffer "*Disassemble*" | |
| 1232 (cl-prettyprint (if macrop | |
| 1233 (cons 'defmacro (cons sym (cdr (cdr fun)))) | |
| 1234 (cons 'defun (cons sym (cdr fun)))))) | |
| 1235 (set-buffer "*Disassemble*") | |
| 1236 (emacs-lisp-mode)) | |
| 1237 ((or (vectorp fun) (stringp fun)) | |
| 1238 ;; #### - do something fancy here | |
| 1239 (with-output-to-temp-buffer "*Disassemble*" | |
| 1240 (princ (format "%s is a keyboard macro:\n\n\t" sym)) | |
| 1241 (prin1 fun))) | |
| 1242 (t | |
| 1243 (error "Sorry, cannot disassemble `%s'" sym))))) | |
| 1244 | |
| 1245 ;; ---------------------------------------------------------------------- ;; | |
| 1246 | |
| 1247 (defun hyper-apropos-quit () | |
| 1248 (interactive) | |
| 1249 "Quit Hyper Apropos and restore original window config." | |
| 1250 (let ((buf (get-buffer hyper-apropos-apropos-buf))) | |
| 1251 (and buf (bury-buffer buf))) | |
| 1252 (set-window-configuration hyper-apropos-prev-wconfig)) | |
| 1253 | |
| 1254 ;; ---------------------------------------------------------------------- ;; | |
| 1255 | |
| 1256 ;;;###autoload | |
| 1257 (defun hyper-apropos-popup-menu (event) | |
| 1258 (interactive "e") | |
| 1259 (mouse-set-point event) | |
| 1260 (let* ((sym (or (hyper-apropos-this-symbol) | |
| 1261 (and (eq major-mode 'hyper-apropos-help-mode) | |
| 1262 (save-excursion | |
| 1263 (goto-char (point-min)) | |
| 1264 (hyper-apropos-this-symbol))))) | |
| 1265 (notjunk (not (null sym))) | |
| 1266 (command-p (if (commandp sym) t)) | |
| 1267 (variable-p (and sym (boundp sym))) | |
| 1268 (customizable-p (and variable-p | |
| 1269 (get sym 'custom-type) | |
| 1270 t)) | |
| 1271 (function-p (fboundp sym)) | |
| 1272 (apropos-p (eq 'hyper-apropos-mode | |
| 1273 (save-excursion (set-buffer (event-buffer event)) | |
| 1274 major-mode))) | |
| 1275 (name (if sym (symbol-name sym) "")) | |
| 1276 (hyper-apropos-menu | |
| 1277 (delete | |
| 1278 nil | |
| 1279 (list (concat "Hyper-Help: " name) | |
| 1280 (vector "Display documentation" 'hyper-apropos-get-doc notjunk) | |
| 1281 (vector "Set variable" 'hyper-apropos-set-variable variable-p) | |
| 1282 (vector "Customize variable" 'hyper-apropos-customize-variable | |
| 1283 customizable-p) | |
| 1284 (vector "Show keys for" 'hyper-apropos-where-is command-p) | |
| 1285 (vector "Invoke command" 'hyper-apropos-invoke-fn command-p) | |
| 1286 (vector "Find function" 'hyper-apropos-find-function function-p) | |
| 1287 (vector "Find tag" 'hyper-apropos-find-tag notjunk) | |
| 1288 (and apropos-p | |
| 1289 ["Add keyword..." hyper-apropos-add-keyword t]) | |
| 1290 (and apropos-p | |
| 1291 ["Eliminate keyword..." hyper-apropos-eliminate-keyword t]) | |
| 1292 (if apropos-p | |
| 1293 ["Programmers' Apropos" hyper-apropos-toggle-programming-flag | |
| 1294 :style toggle :selected hyper-apropos-programming-apropos] | |
| 1295 ["Programmers' Help" hyper-apropos-toggle-programming-flag | |
| 1296 :style toggle :selected hyper-apropos-programming-apropos]) | |
| 1297 (and hyper-apropos-programming-apropos | |
| 1298 (vector "Disassemble function" | |
| 1299 'hyper-apropos-disassemble | |
| 1300 function-p)) | |
| 1301 ["Help" describe-mode t] | |
| 1302 ["Quit" hyper-apropos-quit t] | |
| 1303 )))) | |
| 1304 (popup-menu hyper-apropos-menu))) | |
| 1305 ;;;###autoload | |
| 1306 (define-obsolete-function-alias | |
| 1307 'hypropos-popup-menu 'hyper-apropos-popup-menu) | |
| 1308 | |
| 1309 (provide 'hyper-apropos) | |
| 1310 | |
| 1311 ;; end of hyper-apropos.el |