| 1 | /* Manipulation of keymaps |
| 2 | Copyright (C) 1985, 1986, 1987, 1988, 1993, 1994, 1995, |
| 3 | 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
| 4 | 2005, 2006, 2007 Free Software Foundation, Inc. |
| 5 | |
| 6 | This file is part of GNU Emacs. |
| 7 | |
| 8 | GNU Emacs is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 3, or (at your option) |
| 11 | any later version. |
| 12 | |
| 13 | GNU Emacs is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with GNU Emacs; see the file COPYING. If not, write to |
| 20 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 21 | Boston, MA 02110-1301, USA. */ |
| 22 | |
| 23 | |
| 24 | #include <config.h> |
| 25 | #include <stdio.h> |
| 26 | #if HAVE_ALLOCA_H |
| 27 | # include <alloca.h> |
| 28 | #endif |
| 29 | #include "lisp.h" |
| 30 | #include "commands.h" |
| 31 | #include "buffer.h" |
| 32 | #include "character.h" |
| 33 | #include "charset.h" |
| 34 | #include "keyboard.h" |
| 35 | #include "frame.h" |
| 36 | #include "termhooks.h" |
| 37 | #include "blockinput.h" |
| 38 | #include "puresize.h" |
| 39 | #include "intervals.h" |
| 40 | #include "keymap.h" |
| 41 | #include "window.h" |
| 42 | |
| 43 | /* The number of elements in keymap vectors. */ |
| 44 | #define DENSE_TABLE_SIZE (0200) |
| 45 | |
| 46 | /* Actually allocate storage for these variables */ |
| 47 | |
| 48 | Lisp_Object current_global_map; /* Current global keymap */ |
| 49 | |
| 50 | Lisp_Object global_map; /* default global key bindings */ |
| 51 | |
| 52 | Lisp_Object meta_map; /* The keymap used for globally bound |
| 53 | ESC-prefixed default commands */ |
| 54 | |
| 55 | Lisp_Object control_x_map; /* The keymap used for globally bound |
| 56 | C-x-prefixed default commands */ |
| 57 | |
| 58 | /* was MinibufLocalMap */ |
| 59 | Lisp_Object Vminibuffer_local_map; |
| 60 | /* The keymap used by the minibuf for local |
| 61 | bindings when spaces are allowed in the |
| 62 | minibuf */ |
| 63 | |
| 64 | /* was MinibufLocalNSMap */ |
| 65 | Lisp_Object Vminibuffer_local_ns_map; |
| 66 | /* The keymap used by the minibuf for local |
| 67 | bindings when spaces are not encouraged |
| 68 | in the minibuf */ |
| 69 | |
| 70 | /* keymap used for minibuffers when doing completion */ |
| 71 | /* was MinibufLocalCompletionMap */ |
| 72 | Lisp_Object Vminibuffer_local_completion_map; |
| 73 | |
| 74 | /* keymap used for minibuffers when doing completion in filenames */ |
| 75 | Lisp_Object Vminibuffer_local_filename_completion_map; |
| 76 | |
| 77 | /* keymap used for minibuffers when doing completion in filenames |
| 78 | with require-match*/ |
| 79 | Lisp_Object Vminibuffer_local_must_match_filename_map; |
| 80 | |
| 81 | /* keymap used for minibuffers when doing completion and require a match */ |
| 82 | /* was MinibufLocalMustMatchMap */ |
| 83 | Lisp_Object Vminibuffer_local_must_match_map; |
| 84 | |
| 85 | /* Alist of minor mode variables and keymaps. */ |
| 86 | Lisp_Object Vminor_mode_map_alist; |
| 87 | |
| 88 | /* Alist of major-mode-specific overrides for |
| 89 | minor mode variables and keymaps. */ |
| 90 | Lisp_Object Vminor_mode_overriding_map_alist; |
| 91 | |
| 92 | /* List of emulation mode keymap alists. */ |
| 93 | Lisp_Object Vemulation_mode_map_alists; |
| 94 | |
| 95 | /* A list of all commands given new bindings since a certain time |
| 96 | when nil was stored here. |
| 97 | This is used to speed up recomputation of menu key equivalents |
| 98 | when Emacs starts up. t means don't record anything here. */ |
| 99 | Lisp_Object Vdefine_key_rebound_commands; |
| 100 | |
| 101 | Lisp_Object Qkeymapp, Qkeymap, Qnon_ascii, Qmenu_item, Qremap; |
| 102 | |
| 103 | /* Alist of elements like (DEL . "\d"). */ |
| 104 | static Lisp_Object exclude_keys; |
| 105 | |
| 106 | /* Pre-allocated 2-element vector for Fcommand_remapping to use. */ |
| 107 | static Lisp_Object command_remapping_vector; |
| 108 | |
| 109 | /* A char with the CHAR_META bit set in a vector or the 0200 bit set |
| 110 | in a string key sequence is equivalent to prefixing with this |
| 111 | character. */ |
| 112 | extern Lisp_Object meta_prefix_char; |
| 113 | |
| 114 | extern Lisp_Object Voverriding_local_map; |
| 115 | |
| 116 | /* Hash table used to cache a reverse-map to speed up calls to where-is. */ |
| 117 | static Lisp_Object where_is_cache; |
| 118 | /* Which keymaps are reverse-stored in the cache. */ |
| 119 | static Lisp_Object where_is_cache_keymaps; |
| 120 | |
| 121 | static Lisp_Object store_in_keymap P_ ((Lisp_Object, Lisp_Object, Lisp_Object)); |
| 122 | static void fix_submap_inheritance P_ ((Lisp_Object, Lisp_Object, Lisp_Object)); |
| 123 | |
| 124 | static Lisp_Object define_as_prefix P_ ((Lisp_Object, Lisp_Object)); |
| 125 | static void describe_command P_ ((Lisp_Object, Lisp_Object)); |
| 126 | static void describe_translation P_ ((Lisp_Object, Lisp_Object)); |
| 127 | static void describe_map P_ ((Lisp_Object, Lisp_Object, |
| 128 | void (*) P_ ((Lisp_Object, Lisp_Object)), |
| 129 | int, Lisp_Object, Lisp_Object*, int, int)); |
| 130 | static void describe_vector P_ ((Lisp_Object, Lisp_Object, Lisp_Object, |
| 131 | void (*) (Lisp_Object, Lisp_Object), int, |
| 132 | Lisp_Object, Lisp_Object, int *, |
| 133 | int, int, int)); |
| 134 | static void silly_event_symbol_error P_ ((Lisp_Object)); |
| 135 | \f |
| 136 | /* Keymap object support - constructors and predicates. */ |
| 137 | |
| 138 | DEFUN ("make-keymap", Fmake_keymap, Smake_keymap, 0, 1, 0, |
| 139 | doc: /* Construct and return a new keymap, of the form (keymap CHARTABLE . ALIST). |
| 140 | CHARTABLE is a char-table that holds the bindings for all characters |
| 141 | without modifiers. All entries in it are initially nil, meaning |
| 142 | "command undefined". ALIST is an assoc-list which holds bindings for |
| 143 | function keys, mouse events, and any other things that appear in the |
| 144 | input stream. Initially, ALIST is nil. |
| 145 | |
| 146 | The optional arg STRING supplies a menu name for the keymap |
| 147 | in case you use it as a menu with `x-popup-menu'. */) |
| 148 | (string) |
| 149 | Lisp_Object string; |
| 150 | { |
| 151 | Lisp_Object tail; |
| 152 | if (!NILP (string)) |
| 153 | tail = Fcons (string, Qnil); |
| 154 | else |
| 155 | tail = Qnil; |
| 156 | return Fcons (Qkeymap, |
| 157 | Fcons (Fmake_char_table (Qkeymap, Qnil), tail)); |
| 158 | } |
| 159 | |
| 160 | DEFUN ("make-sparse-keymap", Fmake_sparse_keymap, Smake_sparse_keymap, 0, 1, 0, |
| 161 | doc: /* Construct and return a new sparse keymap. |
| 162 | Its car is `keymap' and its cdr is an alist of (CHAR . DEFINITION), |
| 163 | which binds the character CHAR to DEFINITION, or (SYMBOL . DEFINITION), |
| 164 | which binds the function key or mouse event SYMBOL to DEFINITION. |
| 165 | Initially the alist is nil. |
| 166 | |
| 167 | The optional arg STRING supplies a menu name for the keymap |
| 168 | in case you use it as a menu with `x-popup-menu'. */) |
| 169 | (string) |
| 170 | Lisp_Object string; |
| 171 | { |
| 172 | if (!NILP (string)) |
| 173 | return Fcons (Qkeymap, Fcons (string, Qnil)); |
| 174 | return Fcons (Qkeymap, Qnil); |
| 175 | } |
| 176 | |
| 177 | /* This function is used for installing the standard key bindings |
| 178 | at initialization time. |
| 179 | |
| 180 | For example: |
| 181 | |
| 182 | initial_define_key (control_x_map, Ctl('X'), "exchange-point-and-mark"); */ |
| 183 | |
| 184 | void |
| 185 | initial_define_key (keymap, key, defname) |
| 186 | Lisp_Object keymap; |
| 187 | int key; |
| 188 | char *defname; |
| 189 | { |
| 190 | store_in_keymap (keymap, make_number (key), intern (defname)); |
| 191 | } |
| 192 | |
| 193 | void |
| 194 | initial_define_lispy_key (keymap, keyname, defname) |
| 195 | Lisp_Object keymap; |
| 196 | char *keyname; |
| 197 | char *defname; |
| 198 | { |
| 199 | store_in_keymap (keymap, intern (keyname), intern (defname)); |
| 200 | } |
| 201 | |
| 202 | DEFUN ("keymapp", Fkeymapp, Skeymapp, 1, 1, 0, |
| 203 | doc: /* Return t if OBJECT is a keymap. |
| 204 | |
| 205 | A keymap is a list (keymap . ALIST), |
| 206 | or a symbol whose function definition is itself a keymap. |
| 207 | ALIST elements look like (CHAR . DEFN) or (SYMBOL . DEFN); |
| 208 | a vector of densely packed bindings for small character codes |
| 209 | is also allowed as an element. */) |
| 210 | (object) |
| 211 | Lisp_Object object; |
| 212 | { |
| 213 | return (KEYMAPP (object) ? Qt : Qnil); |
| 214 | } |
| 215 | |
| 216 | DEFUN ("keymap-prompt", Fkeymap_prompt, Skeymap_prompt, 1, 1, 0, |
| 217 | doc: /* Return the prompt-string of a keymap MAP. |
| 218 | If non-nil, the prompt is shown in the echo-area |
| 219 | when reading a key-sequence to be looked-up in this keymap. */) |
| 220 | (map) |
| 221 | Lisp_Object map; |
| 222 | { |
| 223 | map = get_keymap (map, 0, 0); |
| 224 | while (CONSP (map)) |
| 225 | { |
| 226 | Lisp_Object tem = XCAR (map); |
| 227 | if (STRINGP (tem)) |
| 228 | return tem; |
| 229 | map = XCDR (map); |
| 230 | } |
| 231 | return Qnil; |
| 232 | } |
| 233 | |
| 234 | /* Check that OBJECT is a keymap (after dereferencing through any |
| 235 | symbols). If it is, return it. |
| 236 | |
| 237 | If AUTOLOAD is non-zero and OBJECT is a symbol whose function value |
| 238 | is an autoload form, do the autoload and try again. |
| 239 | If AUTOLOAD is nonzero, callers must assume GC is possible. |
| 240 | |
| 241 | If the map needs to be autoloaded, but AUTOLOAD is zero (and ERROR |
| 242 | is zero as well), return Qt. |
| 243 | |
| 244 | ERROR controls how we respond if OBJECT isn't a keymap. |
| 245 | If ERROR is non-zero, signal an error; otherwise, just return Qnil. |
| 246 | |
| 247 | Note that most of the time, we don't want to pursue autoloads. |
| 248 | Functions like Faccessible_keymaps which scan entire keymap trees |
| 249 | shouldn't load every autoloaded keymap. I'm not sure about this, |
| 250 | but it seems to me that only read_key_sequence, Flookup_key, and |
| 251 | Fdefine_key should cause keymaps to be autoloaded. |
| 252 | |
| 253 | This function can GC when AUTOLOAD is non-zero, because it calls |
| 254 | do_autoload which can GC. */ |
| 255 | |
| 256 | Lisp_Object |
| 257 | get_keymap (object, error, autoload) |
| 258 | Lisp_Object object; |
| 259 | int error, autoload; |
| 260 | { |
| 261 | Lisp_Object tem; |
| 262 | |
| 263 | autoload_retry: |
| 264 | if (NILP (object)) |
| 265 | goto end; |
| 266 | if (CONSP (object) && EQ (XCAR (object), Qkeymap)) |
| 267 | return object; |
| 268 | |
| 269 | tem = indirect_function (object); |
| 270 | if (CONSP (tem)) |
| 271 | { |
| 272 | if (EQ (XCAR (tem), Qkeymap)) |
| 273 | return tem; |
| 274 | |
| 275 | /* Should we do an autoload? Autoload forms for keymaps have |
| 276 | Qkeymap as their fifth element. */ |
| 277 | if ((autoload || !error) && EQ (XCAR (tem), Qautoload) |
| 278 | && SYMBOLP (object)) |
| 279 | { |
| 280 | Lisp_Object tail; |
| 281 | |
| 282 | tail = Fnth (make_number (4), tem); |
| 283 | if (EQ (tail, Qkeymap)) |
| 284 | { |
| 285 | if (autoload) |
| 286 | { |
| 287 | struct gcpro gcpro1, gcpro2; |
| 288 | |
| 289 | GCPRO2 (tem, object); |
| 290 | do_autoload (tem, object); |
| 291 | UNGCPRO; |
| 292 | |
| 293 | goto autoload_retry; |
| 294 | } |
| 295 | else |
| 296 | return Qt; |
| 297 | } |
| 298 | } |
| 299 | } |
| 300 | |
| 301 | end: |
| 302 | if (error) |
| 303 | wrong_type_argument (Qkeymapp, object); |
| 304 | return Qnil; |
| 305 | } |
| 306 | \f |
| 307 | /* Return the parent map of KEYMAP, or nil if it has none. |
| 308 | We assume that KEYMAP is a valid keymap. */ |
| 309 | |
| 310 | Lisp_Object |
| 311 | keymap_parent (keymap, autoload) |
| 312 | Lisp_Object keymap; |
| 313 | int autoload; |
| 314 | { |
| 315 | Lisp_Object list; |
| 316 | |
| 317 | keymap = get_keymap (keymap, 1, autoload); |
| 318 | |
| 319 | /* Skip past the initial element `keymap'. */ |
| 320 | list = XCDR (keymap); |
| 321 | for (; CONSP (list); list = XCDR (list)) |
| 322 | { |
| 323 | /* See if there is another `keymap'. */ |
| 324 | if (KEYMAPP (list)) |
| 325 | return list; |
| 326 | } |
| 327 | |
| 328 | return get_keymap (list, 0, autoload); |
| 329 | } |
| 330 | |
| 331 | DEFUN ("keymap-parent", Fkeymap_parent, Skeymap_parent, 1, 1, 0, |
| 332 | doc: /* Return the parent keymap of KEYMAP. */) |
| 333 | (keymap) |
| 334 | Lisp_Object keymap; |
| 335 | { |
| 336 | return keymap_parent (keymap, 1); |
| 337 | } |
| 338 | |
| 339 | /* Check whether MAP is one of MAPS parents. */ |
| 340 | int |
| 341 | keymap_memberp (map, maps) |
| 342 | Lisp_Object map, maps; |
| 343 | { |
| 344 | if (NILP (map)) return 0; |
| 345 | while (KEYMAPP (maps) && !EQ (map, maps)) |
| 346 | maps = keymap_parent (maps, 0); |
| 347 | return (EQ (map, maps)); |
| 348 | } |
| 349 | |
| 350 | /* Set the parent keymap of MAP to PARENT. */ |
| 351 | |
| 352 | DEFUN ("set-keymap-parent", Fset_keymap_parent, Sset_keymap_parent, 2, 2, 0, |
| 353 | doc: /* Modify KEYMAP to set its parent map to PARENT. |
| 354 | Return PARENT. PARENT should be nil or another keymap. */) |
| 355 | (keymap, parent) |
| 356 | Lisp_Object keymap, parent; |
| 357 | { |
| 358 | Lisp_Object list, prev; |
| 359 | struct gcpro gcpro1, gcpro2; |
| 360 | int i; |
| 361 | |
| 362 | /* Force a keymap flush for the next call to where-is. |
| 363 | Since this can be called from within where-is, we don't set where_is_cache |
| 364 | directly but only where_is_cache_keymaps, since where_is_cache shouldn't |
| 365 | be changed during where-is, while where_is_cache_keymaps is only used at |
| 366 | the very beginning of where-is and can thus be changed here without any |
| 367 | adverse effect. |
| 368 | This is a very minor correctness (rather than safety) issue. */ |
| 369 | where_is_cache_keymaps = Qt; |
| 370 | |
| 371 | GCPRO2 (keymap, parent); |
| 372 | keymap = get_keymap (keymap, 1, 1); |
| 373 | |
| 374 | if (!NILP (parent)) |
| 375 | { |
| 376 | parent = get_keymap (parent, 1, 1); |
| 377 | |
| 378 | /* Check for cycles. */ |
| 379 | if (keymap_memberp (keymap, parent)) |
| 380 | error ("Cyclic keymap inheritance"); |
| 381 | } |
| 382 | |
| 383 | /* Skip past the initial element `keymap'. */ |
| 384 | prev = keymap; |
| 385 | while (1) |
| 386 | { |
| 387 | list = XCDR (prev); |
| 388 | /* If there is a parent keymap here, replace it. |
| 389 | If we came to the end, add the parent in PREV. */ |
| 390 | if (!CONSP (list) || KEYMAPP (list)) |
| 391 | { |
| 392 | /* If we already have the right parent, return now |
| 393 | so that we avoid the loops below. */ |
| 394 | if (EQ (XCDR (prev), parent)) |
| 395 | RETURN_UNGCPRO (parent); |
| 396 | |
| 397 | CHECK_IMPURE (prev); |
| 398 | XSETCDR (prev, parent); |
| 399 | break; |
| 400 | } |
| 401 | prev = list; |
| 402 | } |
| 403 | |
| 404 | /* Scan through for submaps, and set their parents too. */ |
| 405 | |
| 406 | for (list = XCDR (keymap); CONSP (list); list = XCDR (list)) |
| 407 | { |
| 408 | /* Stop the scan when we come to the parent. */ |
| 409 | if (EQ (XCAR (list), Qkeymap)) |
| 410 | break; |
| 411 | |
| 412 | /* If this element holds a prefix map, deal with it. */ |
| 413 | if (CONSP (XCAR (list)) |
| 414 | && CONSP (XCDR (XCAR (list)))) |
| 415 | fix_submap_inheritance (keymap, XCAR (XCAR (list)), |
| 416 | XCDR (XCAR (list))); |
| 417 | |
| 418 | if (VECTORP (XCAR (list))) |
| 419 | for (i = 0; i < XVECTOR (XCAR (list))->size; i++) |
| 420 | if (CONSP (XVECTOR (XCAR (list))->contents[i])) |
| 421 | fix_submap_inheritance (keymap, make_number (i), |
| 422 | XVECTOR (XCAR (list))->contents[i]); |
| 423 | |
| 424 | if (CHAR_TABLE_P (XCAR (list))) |
| 425 | { |
| 426 | map_char_table (fix_submap_inheritance, Qnil, XCAR (list), keymap); |
| 427 | } |
| 428 | } |
| 429 | |
| 430 | RETURN_UNGCPRO (parent); |
| 431 | } |
| 432 | |
| 433 | /* EVENT is defined in MAP as a prefix, and SUBMAP is its definition. |
| 434 | if EVENT is also a prefix in MAP's parent, |
| 435 | make sure that SUBMAP inherits that definition as its own parent. */ |
| 436 | |
| 437 | static void |
| 438 | fix_submap_inheritance (map, event, submap) |
| 439 | Lisp_Object map, event, submap; |
| 440 | { |
| 441 | Lisp_Object map_parent, parent_entry; |
| 442 | |
| 443 | /* SUBMAP is a cons that we found as a key binding. |
| 444 | Discard the other things found in a menu key binding. */ |
| 445 | |
| 446 | submap = get_keymap (get_keyelt (submap, 0), 0, 0); |
| 447 | |
| 448 | /* If it isn't a keymap now, there's no work to do. */ |
| 449 | if (!CONSP (submap)) |
| 450 | return; |
| 451 | |
| 452 | map_parent = keymap_parent (map, 0); |
| 453 | if (!NILP (map_parent)) |
| 454 | parent_entry = |
| 455 | get_keymap (access_keymap (map_parent, event, 0, 0, 0), 0, 0); |
| 456 | else |
| 457 | parent_entry = Qnil; |
| 458 | |
| 459 | /* If MAP's parent has something other than a keymap, |
| 460 | our own submap shadows it completely. */ |
| 461 | if (!CONSP (parent_entry)) |
| 462 | return; |
| 463 | |
| 464 | if (! EQ (parent_entry, submap)) |
| 465 | { |
| 466 | Lisp_Object submap_parent; |
| 467 | submap_parent = submap; |
| 468 | while (1) |
| 469 | { |
| 470 | Lisp_Object tem; |
| 471 | |
| 472 | tem = keymap_parent (submap_parent, 0); |
| 473 | |
| 474 | if (KEYMAPP (tem)) |
| 475 | { |
| 476 | if (keymap_memberp (tem, parent_entry)) |
| 477 | /* Fset_keymap_parent could create a cycle. */ |
| 478 | return; |
| 479 | submap_parent = tem; |
| 480 | } |
| 481 | else |
| 482 | break; |
| 483 | } |
| 484 | Fset_keymap_parent (submap_parent, parent_entry); |
| 485 | } |
| 486 | } |
| 487 | \f |
| 488 | /* Look up IDX in MAP. IDX may be any sort of event. |
| 489 | Note that this does only one level of lookup; IDX must be a single |
| 490 | event, not a sequence. |
| 491 | |
| 492 | If T_OK is non-zero, bindings for Qt are treated as default |
| 493 | bindings; any key left unmentioned by other tables and bindings is |
| 494 | given the binding of Qt. |
| 495 | |
| 496 | If T_OK is zero, bindings for Qt are not treated specially. |
| 497 | |
| 498 | If NOINHERIT, don't accept a subkeymap found in an inherited keymap. */ |
| 499 | |
| 500 | Lisp_Object |
| 501 | access_keymap (map, idx, t_ok, noinherit, autoload) |
| 502 | Lisp_Object map; |
| 503 | Lisp_Object idx; |
| 504 | int t_ok; |
| 505 | int noinherit; |
| 506 | int autoload; |
| 507 | { |
| 508 | Lisp_Object val; |
| 509 | |
| 510 | /* Qunbound in VAL means we have found no binding yet. */ |
| 511 | val = Qunbound; |
| 512 | |
| 513 | /* If idx is a list (some sort of mouse click, perhaps?), |
| 514 | the index we want to use is the car of the list, which |
| 515 | ought to be a symbol. */ |
| 516 | idx = EVENT_HEAD (idx); |
| 517 | |
| 518 | /* If idx is a symbol, it might have modifiers, which need to |
| 519 | be put in the canonical order. */ |
| 520 | if (SYMBOLP (idx)) |
| 521 | idx = reorder_modifiers (idx); |
| 522 | else if (INTEGERP (idx)) |
| 523 | /* Clobber the high bits that can be present on a machine |
| 524 | with more than 24 bits of integer. */ |
| 525 | XSETFASTINT (idx, XINT (idx) & (CHAR_META | (CHAR_META - 1))); |
| 526 | |
| 527 | /* Handle the special meta -> esc mapping. */ |
| 528 | if (INTEGERP (idx) && XUINT (idx) & meta_modifier) |
| 529 | { |
| 530 | /* See if there is a meta-map. If there's none, there is |
| 531 | no binding for IDX, unless a default binding exists in MAP. */ |
| 532 | struct gcpro gcpro1; |
| 533 | Lisp_Object meta_map; |
| 534 | GCPRO1 (map); |
| 535 | /* A strange value in which Meta is set would cause |
| 536 | infinite recursion. Protect against that. */ |
| 537 | if (XINT (meta_prefix_char) & CHAR_META) |
| 538 | meta_prefix_char = make_number (27); |
| 539 | meta_map = get_keymap (access_keymap (map, meta_prefix_char, |
| 540 | t_ok, noinherit, autoload), |
| 541 | 0, autoload); |
| 542 | UNGCPRO; |
| 543 | if (CONSP (meta_map)) |
| 544 | { |
| 545 | map = meta_map; |
| 546 | idx = make_number (XUINT (idx) & ~meta_modifier); |
| 547 | } |
| 548 | else if (t_ok) |
| 549 | /* Set IDX to t, so that we only find a default binding. */ |
| 550 | idx = Qt; |
| 551 | else |
| 552 | /* We know there is no binding. */ |
| 553 | return Qnil; |
| 554 | } |
| 555 | |
| 556 | /* t_binding is where we put a default binding that applies, |
| 557 | to use in case we do not find a binding specifically |
| 558 | for this key sequence. */ |
| 559 | { |
| 560 | Lisp_Object tail; |
| 561 | Lisp_Object t_binding = Qnil; |
| 562 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; |
| 563 | |
| 564 | GCPRO4 (map, tail, idx, t_binding); |
| 565 | |
| 566 | /* If `t_ok' is 2, both `t' is accepted. */ |
| 567 | t_ok = t_ok ? 2 : 0; |
| 568 | |
| 569 | for (tail = XCDR (map); |
| 570 | (CONSP (tail) |
| 571 | || (tail = get_keymap (tail, 0, autoload), CONSP (tail))); |
| 572 | tail = XCDR (tail)) |
| 573 | { |
| 574 | Lisp_Object binding; |
| 575 | |
| 576 | binding = XCAR (tail); |
| 577 | if (SYMBOLP (binding)) |
| 578 | { |
| 579 | /* If NOINHERIT, stop finding prefix definitions |
| 580 | after we pass a second occurrence of the `keymap' symbol. */ |
| 581 | if (noinherit && EQ (binding, Qkeymap)) |
| 582 | RETURN_UNGCPRO (Qnil); |
| 583 | } |
| 584 | else if (CONSP (binding)) |
| 585 | { |
| 586 | Lisp_Object key = XCAR (binding); |
| 587 | |
| 588 | if (EQ (key, idx)) |
| 589 | val = XCDR (binding); |
| 590 | else if (t_ok > 1 && EQ (key, Qt)) |
| 591 | { |
| 592 | t_binding = XCDR (binding); |
| 593 | t_ok = 1; |
| 594 | } |
| 595 | } |
| 596 | else if (VECTORP (binding)) |
| 597 | { |
| 598 | if (NATNUMP (idx) && XFASTINT (idx) < ASIZE (binding)) |
| 599 | val = AREF (binding, XFASTINT (idx)); |
| 600 | } |
| 601 | else if (CHAR_TABLE_P (binding)) |
| 602 | { |
| 603 | /* Character codes with modifiers |
| 604 | are not included in a char-table. |
| 605 | All character codes without modifiers are included. */ |
| 606 | if (NATNUMP (idx) && (XFASTINT (idx) & CHAR_MODIFIER_MASK) == 0) |
| 607 | { |
| 608 | val = Faref (binding, idx); |
| 609 | /* `nil' has a special meaning for char-tables, so |
| 610 | we use something else to record an explicitly |
| 611 | unbound entry. */ |
| 612 | if (NILP (val)) |
| 613 | val = Qunbound; |
| 614 | } |
| 615 | } |
| 616 | |
| 617 | /* If we found a binding, clean it up and return it. */ |
| 618 | if (!EQ (val, Qunbound)) |
| 619 | { |
| 620 | if (EQ (val, Qt)) |
| 621 | /* A Qt binding is just like an explicit nil binding |
| 622 | (i.e. it shadows any parent binding but not bindings in |
| 623 | keymaps of lower precedence). */ |
| 624 | val = Qnil; |
| 625 | val = get_keyelt (val, autoload); |
| 626 | if (KEYMAPP (val)) |
| 627 | fix_submap_inheritance (map, idx, val); |
| 628 | RETURN_UNGCPRO (val); |
| 629 | } |
| 630 | QUIT; |
| 631 | } |
| 632 | UNGCPRO; |
| 633 | return get_keyelt (t_binding, autoload); |
| 634 | } |
| 635 | } |
| 636 | |
| 637 | static void |
| 638 | map_keymap_item (fun, args, key, val, data) |
| 639 | map_keymap_function_t fun; |
| 640 | Lisp_Object args, key, val; |
| 641 | void *data; |
| 642 | { |
| 643 | /* We should maybe try to detect bindings shadowed by previous |
| 644 | ones and things like that. */ |
| 645 | if (EQ (val, Qt)) |
| 646 | val = Qnil; |
| 647 | (*fun) (key, val, args, data); |
| 648 | } |
| 649 | |
| 650 | static void |
| 651 | map_keymap_char_table_item (args, key, val) |
| 652 | Lisp_Object args, key, val; |
| 653 | { |
| 654 | if (!NILP (val)) |
| 655 | { |
| 656 | map_keymap_function_t fun = XSAVE_VALUE (XCAR (args))->pointer; |
| 657 | args = XCDR (args); |
| 658 | map_keymap_item (fun, XCDR (args), key, val, |
| 659 | XSAVE_VALUE (XCAR (args))->pointer); |
| 660 | } |
| 661 | } |
| 662 | |
| 663 | /* Call FUN for every binding in MAP. |
| 664 | FUN is called with 4 arguments: FUN (KEY, BINDING, ARGS, DATA). |
| 665 | AUTOLOAD if non-zero means that we can autoload keymaps if necessary. */ |
| 666 | void |
| 667 | map_keymap (map, fun, args, data, autoload) |
| 668 | map_keymap_function_t fun; |
| 669 | Lisp_Object map, args; |
| 670 | void *data; |
| 671 | int autoload; |
| 672 | { |
| 673 | struct gcpro gcpro1, gcpro2, gcpro3; |
| 674 | Lisp_Object tail; |
| 675 | |
| 676 | tail = Qnil; |
| 677 | GCPRO3 (map, args, tail); |
| 678 | map = get_keymap (map, 1, autoload); |
| 679 | for (tail = (CONSP (map) && EQ (Qkeymap, XCAR (map))) ? XCDR (map) : map; |
| 680 | CONSP (tail) || (tail = get_keymap (tail, 0, autoload), CONSP (tail)); |
| 681 | tail = XCDR (tail)) |
| 682 | { |
| 683 | Lisp_Object binding = XCAR (tail); |
| 684 | |
| 685 | if (CONSP (binding)) |
| 686 | map_keymap_item (fun, args, XCAR (binding), XCDR (binding), data); |
| 687 | else if (VECTORP (binding)) |
| 688 | { |
| 689 | /* Loop over the char values represented in the vector. */ |
| 690 | int len = ASIZE (binding); |
| 691 | int c; |
| 692 | for (c = 0; c < len; c++) |
| 693 | { |
| 694 | Lisp_Object character; |
| 695 | XSETFASTINT (character, c); |
| 696 | map_keymap_item (fun, args, character, AREF (binding, c), data); |
| 697 | } |
| 698 | } |
| 699 | else if (CHAR_TABLE_P (binding)) |
| 700 | { |
| 701 | map_char_table (map_keymap_char_table_item, Qnil, binding, |
| 702 | Fcons (make_save_value (fun, 0), |
| 703 | Fcons (make_save_value (data, 0), |
| 704 | args))); |
| 705 | } |
| 706 | } |
| 707 | UNGCPRO; |
| 708 | } |
| 709 | |
| 710 | static void |
| 711 | map_keymap_call (key, val, fun, dummy) |
| 712 | Lisp_Object key, val, fun; |
| 713 | void *dummy; |
| 714 | { |
| 715 | call2 (fun, key, val); |
| 716 | } |
| 717 | |
| 718 | DEFUN ("map-keymap", Fmap_keymap, Smap_keymap, 2, 3, 0, |
| 719 | doc: /* Call FUNCTION once for each event binding in KEYMAP. |
| 720 | FUNCTION is called with two arguments: the event that is bound, and |
| 721 | the definition it is bound to. If the event is an integer, it may be |
| 722 | a generic character (see Info node `(elisp)Splitting Characters'), and |
| 723 | that means that all actual character events belonging to that generic |
| 724 | character are bound to the definition. |
| 725 | |
| 726 | If KEYMAP has a parent, the parent's bindings are included as well. |
| 727 | This works recursively: if the parent has itself a parent, then the |
| 728 | grandparent's bindings are also included and so on. |
| 729 | usage: (map-keymap FUNCTION KEYMAP) */) |
| 730 | (function, keymap, sort_first) |
| 731 | Lisp_Object function, keymap, sort_first; |
| 732 | { |
| 733 | if (INTEGERP (function)) |
| 734 | /* We have to stop integers early since map_keymap gives them special |
| 735 | significance. */ |
| 736 | xsignal1 (Qinvalid_function, function); |
| 737 | if (! NILP (sort_first)) |
| 738 | return call3 (intern ("map-keymap-internal"), function, keymap, Qt); |
| 739 | |
| 740 | map_keymap (keymap, map_keymap_call, function, NULL, 1); |
| 741 | return Qnil; |
| 742 | } |
| 743 | |
| 744 | /* Given OBJECT which was found in a slot in a keymap, |
| 745 | trace indirect definitions to get the actual definition of that slot. |
| 746 | An indirect definition is a list of the form |
| 747 | (KEYMAP . INDEX), where KEYMAP is a keymap or a symbol defined as one |
| 748 | and INDEX is the object to look up in KEYMAP to yield the definition. |
| 749 | |
| 750 | Also if OBJECT has a menu string as the first element, |
| 751 | remove that. Also remove a menu help string as second element. |
| 752 | |
| 753 | If AUTOLOAD is nonzero, load autoloadable keymaps |
| 754 | that are referred to with indirection. |
| 755 | |
| 756 | This can GC because menu_item_eval_property calls Feval. */ |
| 757 | |
| 758 | Lisp_Object |
| 759 | get_keyelt (object, autoload) |
| 760 | Lisp_Object object; |
| 761 | int autoload; |
| 762 | { |
| 763 | while (1) |
| 764 | { |
| 765 | if (!(CONSP (object))) |
| 766 | /* This is really the value. */ |
| 767 | return object; |
| 768 | |
| 769 | /* If the keymap contents looks like (keymap ...) or (lambda ...) |
| 770 | then use itself. */ |
| 771 | else if (EQ (XCAR (object), Qkeymap) || EQ (XCAR (object), Qlambda)) |
| 772 | return object; |
| 773 | |
| 774 | /* If the keymap contents looks like (menu-item name . DEFN) |
| 775 | or (menu-item name DEFN ...) then use DEFN. |
| 776 | This is a new format menu item. */ |
| 777 | else if (EQ (XCAR (object), Qmenu_item)) |
| 778 | { |
| 779 | if (CONSP (XCDR (object))) |
| 780 | { |
| 781 | Lisp_Object tem; |
| 782 | |
| 783 | object = XCDR (XCDR (object)); |
| 784 | tem = object; |
| 785 | if (CONSP (object)) |
| 786 | object = XCAR (object); |
| 787 | |
| 788 | /* If there's a `:filter FILTER', apply FILTER to the |
| 789 | menu-item's definition to get the real definition to |
| 790 | use. */ |
| 791 | for (; CONSP (tem) && CONSP (XCDR (tem)); tem = XCDR (tem)) |
| 792 | if (EQ (XCAR (tem), QCfilter) && autoload) |
| 793 | { |
| 794 | Lisp_Object filter; |
| 795 | filter = XCAR (XCDR (tem)); |
| 796 | filter = list2 (filter, list2 (Qquote, object)); |
| 797 | object = menu_item_eval_property (filter); |
| 798 | break; |
| 799 | } |
| 800 | } |
| 801 | else |
| 802 | /* Invalid keymap. */ |
| 803 | return object; |
| 804 | } |
| 805 | |
| 806 | /* If the keymap contents looks like (STRING . DEFN), use DEFN. |
| 807 | Keymap alist elements like (CHAR MENUSTRING . DEFN) |
| 808 | will be used by HierarKey menus. */ |
| 809 | else if (STRINGP (XCAR (object))) |
| 810 | { |
| 811 | object = XCDR (object); |
| 812 | /* Also remove a menu help string, if any, |
| 813 | following the menu item name. */ |
| 814 | if (CONSP (object) && STRINGP (XCAR (object))) |
| 815 | object = XCDR (object); |
| 816 | /* Also remove the sublist that caches key equivalences, if any. */ |
| 817 | if (CONSP (object) && CONSP (XCAR (object))) |
| 818 | { |
| 819 | Lisp_Object carcar; |
| 820 | carcar = XCAR (XCAR (object)); |
| 821 | if (NILP (carcar) || VECTORP (carcar)) |
| 822 | object = XCDR (object); |
| 823 | } |
| 824 | } |
| 825 | |
| 826 | /* If the contents are (KEYMAP . ELEMENT), go indirect. */ |
| 827 | else |
| 828 | { |
| 829 | struct gcpro gcpro1; |
| 830 | Lisp_Object map; |
| 831 | GCPRO1 (object); |
| 832 | map = get_keymap (Fcar_safe (object), 0, autoload); |
| 833 | UNGCPRO; |
| 834 | return (!CONSP (map) ? object /* Invalid keymap */ |
| 835 | : access_keymap (map, Fcdr (object), 0, 0, autoload)); |
| 836 | } |
| 837 | } |
| 838 | } |
| 839 | |
| 840 | static Lisp_Object |
| 841 | store_in_keymap (keymap, idx, def) |
| 842 | Lisp_Object keymap; |
| 843 | register Lisp_Object idx; |
| 844 | Lisp_Object def; |
| 845 | { |
| 846 | /* Flush any reverse-map cache. */ |
| 847 | where_is_cache = Qnil; |
| 848 | where_is_cache_keymaps = Qt; |
| 849 | |
| 850 | /* If we are preparing to dump, and DEF is a menu element |
| 851 | with a menu item indicator, copy it to ensure it is not pure. */ |
| 852 | if (CONSP (def) && PURE_P (def) |
| 853 | && (EQ (XCAR (def), Qmenu_item) || STRINGP (XCAR (def)))) |
| 854 | def = Fcons (XCAR (def), XCDR (def)); |
| 855 | |
| 856 | if (!CONSP (keymap) || !EQ (XCAR (keymap), Qkeymap)) |
| 857 | error ("attempt to define a key in a non-keymap"); |
| 858 | |
| 859 | /* If idx is a cons, and the car part is a character, idx must be of |
| 860 | the form (FROM-CHAR . TO-CHAR). */ |
| 861 | if (CONSP (idx) && CHARACTERP (XCAR (idx))) |
| 862 | CHECK_CHARACTER_CDR (idx); |
| 863 | else |
| 864 | /* If idx is a list (some sort of mouse click, perhaps?), |
| 865 | the index we want to use is the car of the list, which |
| 866 | ought to be a symbol. */ |
| 867 | idx = EVENT_HEAD (idx); |
| 868 | |
| 869 | /* If idx is a symbol, it might have modifiers, which need to |
| 870 | be put in the canonical order. */ |
| 871 | if (SYMBOLP (idx)) |
| 872 | idx = reorder_modifiers (idx); |
| 873 | else if (INTEGERP (idx)) |
| 874 | /* Clobber the high bits that can be present on a machine |
| 875 | with more than 24 bits of integer. */ |
| 876 | XSETFASTINT (idx, XINT (idx) & (CHAR_META | (CHAR_META - 1))); |
| 877 | |
| 878 | /* Scan the keymap for a binding of idx. */ |
| 879 | { |
| 880 | Lisp_Object tail; |
| 881 | |
| 882 | /* The cons after which we should insert new bindings. If the |
| 883 | keymap has a table element, we record its position here, so new |
| 884 | bindings will go after it; this way, the table will stay |
| 885 | towards the front of the alist and character lookups in dense |
| 886 | keymaps will remain fast. Otherwise, this just points at the |
| 887 | front of the keymap. */ |
| 888 | Lisp_Object insertion_point; |
| 889 | |
| 890 | insertion_point = keymap; |
| 891 | for (tail = XCDR (keymap); CONSP (tail); tail = XCDR (tail)) |
| 892 | { |
| 893 | Lisp_Object elt; |
| 894 | |
| 895 | elt = XCAR (tail); |
| 896 | if (VECTORP (elt)) |
| 897 | { |
| 898 | if (NATNUMP (idx) && XFASTINT (idx) < ASIZE (elt)) |
| 899 | { |
| 900 | CHECK_IMPURE (elt); |
| 901 | ASET (elt, XFASTINT (idx), def); |
| 902 | return def; |
| 903 | } |
| 904 | else if (CONSP (idx) && CHARACTERP (XCAR (idx))) |
| 905 | { |
| 906 | int from = XFASTINT (XCAR (idx)); |
| 907 | int to = XFASTINT (XCDR (idx)); |
| 908 | |
| 909 | if (to >= ASIZE (elt)) |
| 910 | to = ASIZE (elt) - 1; |
| 911 | for (; from <= to; from++) |
| 912 | ASET (elt, from, def); |
| 913 | if (to == XFASTINT (XCDR (idx))) |
| 914 | /* We have defined all keys in IDX. */ |
| 915 | return def; |
| 916 | } |
| 917 | insertion_point = tail; |
| 918 | } |
| 919 | else if (CHAR_TABLE_P (elt)) |
| 920 | { |
| 921 | /* Character codes with modifiers |
| 922 | are not included in a char-table. |
| 923 | All character codes without modifiers are included. */ |
| 924 | if (NATNUMP (idx) && !(XFASTINT (idx) & CHAR_MODIFIER_MASK)) |
| 925 | { |
| 926 | Faset (elt, idx, |
| 927 | /* `nil' has a special meaning for char-tables, so |
| 928 | we use something else to record an explicitly |
| 929 | unbound entry. */ |
| 930 | NILP (def) ? Qt : def); |
| 931 | return def; |
| 932 | } |
| 933 | else if (CONSP (idx) && CHARACTERP (XCAR (idx))) |
| 934 | { |
| 935 | Fset_char_table_range (elt, idx, NILP (def) ? Qt : def); |
| 936 | return def; |
| 937 | } |
| 938 | insertion_point = tail; |
| 939 | } |
| 940 | else if (CONSP (elt)) |
| 941 | { |
| 942 | if (EQ (idx, XCAR (elt))) |
| 943 | { |
| 944 | CHECK_IMPURE (elt); |
| 945 | XSETCDR (elt, def); |
| 946 | return def; |
| 947 | } |
| 948 | else if (CONSP (idx) && CHARACTERP (XCAR (idx))) |
| 949 | { |
| 950 | int from = XFASTINT (XCAR (idx)); |
| 951 | int to = XFASTINT (XCDR (idx)); |
| 952 | |
| 953 | if (from <= XFASTINT (XCAR (elt)) |
| 954 | && to >= XFASTINT (XCAR (elt))) |
| 955 | { |
| 956 | XSETCDR (elt, def); |
| 957 | if (from == to) |
| 958 | return def; |
| 959 | } |
| 960 | } |
| 961 | } |
| 962 | else if (EQ (elt, Qkeymap)) |
| 963 | /* If we find a 'keymap' symbol in the spine of KEYMAP, |
| 964 | then we must have found the start of a second keymap |
| 965 | being used as the tail of KEYMAP, and a binding for IDX |
| 966 | should be inserted before it. */ |
| 967 | goto keymap_end; |
| 968 | |
| 969 | QUIT; |
| 970 | } |
| 971 | |
| 972 | keymap_end: |
| 973 | /* We have scanned the entire keymap, and not found a binding for |
| 974 | IDX. Let's add one. */ |
| 975 | { |
| 976 | Lisp_Object elt; |
| 977 | |
| 978 | if (CONSP (idx) && CHARACTERP (XCAR (idx))) |
| 979 | { |
| 980 | /* IDX specifies a range of characters, and not all of them |
| 981 | were handled yet, which means this keymap doesn't have a |
| 982 | char-table. So, we insert a char-table now. */ |
| 983 | elt = Fmake_char_table (Qkeymap, Qnil); |
| 984 | Fset_char_table_range (elt, idx, NILP (def) ? Qt : def); |
| 985 | } |
| 986 | else |
| 987 | elt = Fcons (idx, def); |
| 988 | CHECK_IMPURE (insertion_point); |
| 989 | XSETCDR (insertion_point, Fcons (elt, XCDR (insertion_point))); |
| 990 | } |
| 991 | } |
| 992 | |
| 993 | return def; |
| 994 | } |
| 995 | |
| 996 | EXFUN (Fcopy_keymap, 1); |
| 997 | |
| 998 | Lisp_Object |
| 999 | copy_keymap_item (elt) |
| 1000 | Lisp_Object elt; |
| 1001 | { |
| 1002 | Lisp_Object res, tem; |
| 1003 | |
| 1004 | if (!CONSP (elt)) |
| 1005 | return elt; |
| 1006 | |
| 1007 | res = tem = elt; |
| 1008 | |
| 1009 | /* Is this a new format menu item. */ |
| 1010 | if (EQ (XCAR (tem), Qmenu_item)) |
| 1011 | { |
| 1012 | /* Copy cell with menu-item marker. */ |
| 1013 | res = elt = Fcons (XCAR (tem), XCDR (tem)); |
| 1014 | tem = XCDR (elt); |
| 1015 | if (CONSP (tem)) |
| 1016 | { |
| 1017 | /* Copy cell with menu-item name. */ |
| 1018 | XSETCDR (elt, Fcons (XCAR (tem), XCDR (tem))); |
| 1019 | elt = XCDR (elt); |
| 1020 | tem = XCDR (elt); |
| 1021 | } |
| 1022 | if (CONSP (tem)) |
| 1023 | { |
| 1024 | /* Copy cell with binding and if the binding is a keymap, |
| 1025 | copy that. */ |
| 1026 | XSETCDR (elt, Fcons (XCAR (tem), XCDR (tem))); |
| 1027 | elt = XCDR (elt); |
| 1028 | tem = XCAR (elt); |
| 1029 | if (CONSP (tem) && EQ (XCAR (tem), Qkeymap)) |
| 1030 | XSETCAR (elt, Fcopy_keymap (tem)); |
| 1031 | tem = XCDR (elt); |
| 1032 | if (CONSP (tem) && CONSP (XCAR (tem))) |
| 1033 | /* Delete cache for key equivalences. */ |
| 1034 | XSETCDR (elt, XCDR (tem)); |
| 1035 | } |
| 1036 | } |
| 1037 | else |
| 1038 | { |
| 1039 | /* It may be an old fomat menu item. |
| 1040 | Skip the optional menu string. */ |
| 1041 | if (STRINGP (XCAR (tem))) |
| 1042 | { |
| 1043 | /* Copy the cell, since copy-alist didn't go this deep. */ |
| 1044 | res = elt = Fcons (XCAR (tem), XCDR (tem)); |
| 1045 | tem = XCDR (elt); |
| 1046 | /* Also skip the optional menu help string. */ |
| 1047 | if (CONSP (tem) && STRINGP (XCAR (tem))) |
| 1048 | { |
| 1049 | XSETCDR (elt, Fcons (XCAR (tem), XCDR (tem))); |
| 1050 | elt = XCDR (elt); |
| 1051 | tem = XCDR (elt); |
| 1052 | } |
| 1053 | /* There may also be a list that caches key equivalences. |
| 1054 | Just delete it for the new keymap. */ |
| 1055 | if (CONSP (tem) |
| 1056 | && CONSP (XCAR (tem)) |
| 1057 | && (NILP (XCAR (XCAR (tem))) |
| 1058 | || VECTORP (XCAR (XCAR (tem))))) |
| 1059 | { |
| 1060 | XSETCDR (elt, XCDR (tem)); |
| 1061 | tem = XCDR (tem); |
| 1062 | } |
| 1063 | if (CONSP (tem) && EQ (XCAR (tem), Qkeymap)) |
| 1064 | XSETCDR (elt, Fcopy_keymap (tem)); |
| 1065 | } |
| 1066 | else if (EQ (XCAR (tem), Qkeymap)) |
| 1067 | res = Fcopy_keymap (elt); |
| 1068 | } |
| 1069 | return res; |
| 1070 | } |
| 1071 | |
| 1072 | static void |
| 1073 | copy_keymap_1 (chartable, idx, elt) |
| 1074 | Lisp_Object chartable, idx, elt; |
| 1075 | { |
| 1076 | Fset_char_table_range (chartable, idx, copy_keymap_item (elt)); |
| 1077 | } |
| 1078 | |
| 1079 | DEFUN ("copy-keymap", Fcopy_keymap, Scopy_keymap, 1, 1, 0, |
| 1080 | doc: /* Return a copy of the keymap KEYMAP. |
| 1081 | The copy starts out with the same definitions of KEYMAP, |
| 1082 | but changing either the copy or KEYMAP does not affect the other. |
| 1083 | Any key definitions that are subkeymaps are recursively copied. |
| 1084 | However, a key definition which is a symbol whose definition is a keymap |
| 1085 | is not copied. */) |
| 1086 | (keymap) |
| 1087 | Lisp_Object keymap; |
| 1088 | { |
| 1089 | register Lisp_Object copy, tail; |
| 1090 | keymap = get_keymap (keymap, 1, 0); |
| 1091 | copy = tail = Fcons (Qkeymap, Qnil); |
| 1092 | keymap = XCDR (keymap); /* Skip the `keymap' symbol. */ |
| 1093 | |
| 1094 | while (CONSP (keymap) && !EQ (XCAR (keymap), Qkeymap)) |
| 1095 | { |
| 1096 | Lisp_Object elt = XCAR (keymap); |
| 1097 | if (CHAR_TABLE_P (elt)) |
| 1098 | { |
| 1099 | elt = Fcopy_sequence (elt); |
| 1100 | map_char_table (copy_keymap_1, Qnil, elt, elt); |
| 1101 | } |
| 1102 | else if (VECTORP (elt)) |
| 1103 | { |
| 1104 | int i; |
| 1105 | elt = Fcopy_sequence (elt); |
| 1106 | for (i = 0; i < ASIZE (elt); i++) |
| 1107 | ASET (elt, i, copy_keymap_item (AREF (elt, i))); |
| 1108 | } |
| 1109 | else if (CONSP (elt)) |
| 1110 | elt = Fcons (XCAR (elt), copy_keymap_item (XCDR (elt))); |
| 1111 | XSETCDR (tail, Fcons (elt, Qnil)); |
| 1112 | tail = XCDR (tail); |
| 1113 | keymap = XCDR (keymap); |
| 1114 | } |
| 1115 | XSETCDR (tail, keymap); |
| 1116 | return copy; |
| 1117 | } |
| 1118 | \f |
| 1119 | /* Simple Keymap mutators and accessors. */ |
| 1120 | |
| 1121 | /* GC is possible in this function if it autoloads a keymap. */ |
| 1122 | |
| 1123 | DEFUN ("define-key", Fdefine_key, Sdefine_key, 3, 3, 0, |
| 1124 | doc: /* In KEYMAP, define key sequence KEY as DEF. |
| 1125 | KEYMAP is a keymap. |
| 1126 | |
| 1127 | KEY is a string or a vector of symbols and characters meaning a |
| 1128 | sequence of keystrokes and events. Non-ASCII characters with codes |
| 1129 | above 127 (such as ISO Latin-1) can be included if you use a vector. |
| 1130 | Using [t] for KEY creates a default definition, which applies to any |
| 1131 | event type that has no other definition in this keymap. |
| 1132 | |
| 1133 | DEF is anything that can be a key's definition: |
| 1134 | nil (means key is undefined in this keymap), |
| 1135 | a command (a Lisp function suitable for interactive calling), |
| 1136 | a string (treated as a keyboard macro), |
| 1137 | a keymap (to define a prefix key), |
| 1138 | a symbol (when the key is looked up, the symbol will stand for its |
| 1139 | function definition, which should at that time be one of the above, |
| 1140 | or another symbol whose function definition is used, etc.), |
| 1141 | a cons (STRING . DEFN), meaning that DEFN is the definition |
| 1142 | (DEFN should be a valid definition in its own right), |
| 1143 | or a cons (MAP . CHAR), meaning use definition of CHAR in keymap MAP, |
| 1144 | or an extended menu item definition. |
| 1145 | (See info node `(elisp)Extended Menu Items'.) |
| 1146 | |
| 1147 | If KEYMAP is a sparse keymap with a binding for KEY, the existing |
| 1148 | binding is altered. If there is no binding for KEY, the new pair |
| 1149 | binding KEY to DEF is added at the front of KEYMAP. */) |
| 1150 | (keymap, key, def) |
| 1151 | Lisp_Object keymap; |
| 1152 | Lisp_Object key; |
| 1153 | Lisp_Object def; |
| 1154 | { |
| 1155 | register int idx; |
| 1156 | register Lisp_Object c; |
| 1157 | register Lisp_Object cmd; |
| 1158 | int metized = 0; |
| 1159 | int meta_bit; |
| 1160 | int length; |
| 1161 | struct gcpro gcpro1, gcpro2, gcpro3; |
| 1162 | |
| 1163 | GCPRO3 (keymap, key, def); |
| 1164 | keymap = get_keymap (keymap, 1, 1); |
| 1165 | |
| 1166 | CHECK_VECTOR_OR_STRING (key); |
| 1167 | |
| 1168 | length = XFASTINT (Flength (key)); |
| 1169 | if (length == 0) |
| 1170 | RETURN_UNGCPRO (Qnil); |
| 1171 | |
| 1172 | if (SYMBOLP (def) && !EQ (Vdefine_key_rebound_commands, Qt)) |
| 1173 | Vdefine_key_rebound_commands = Fcons (def, Vdefine_key_rebound_commands); |
| 1174 | |
| 1175 | meta_bit = (VECTORP (key) || (STRINGP (key) && STRING_MULTIBYTE (key)) |
| 1176 | ? meta_modifier : 0x80); |
| 1177 | |
| 1178 | if (VECTORP (def) && ASIZE (def) > 0 && CONSP (AREF (def, 0))) |
| 1179 | { /* DEF is apparently an XEmacs-style keyboard macro. */ |
| 1180 | Lisp_Object tmp = Fmake_vector (make_number (ASIZE (def)), Qnil); |
| 1181 | int i = ASIZE (def); |
| 1182 | while (--i >= 0) |
| 1183 | { |
| 1184 | Lisp_Object c = AREF (def, i); |
| 1185 | if (CONSP (c) && lucid_event_type_list_p (c)) |
| 1186 | c = Fevent_convert_list (c); |
| 1187 | ASET (tmp, i, c); |
| 1188 | } |
| 1189 | def = tmp; |
| 1190 | } |
| 1191 | |
| 1192 | idx = 0; |
| 1193 | while (1) |
| 1194 | { |
| 1195 | c = Faref (key, make_number (idx)); |
| 1196 | |
| 1197 | if (CONSP (c)) |
| 1198 | { |
| 1199 | /* C may be a Lucid style event type list or a cons (FROM . |
| 1200 | TO) specifying a range of characters. */ |
| 1201 | if (lucid_event_type_list_p (c)) |
| 1202 | c = Fevent_convert_list (c); |
| 1203 | else if (CHARACTERP (XCAR (c))) |
| 1204 | CHECK_CHARACTER_CDR (c); |
| 1205 | } |
| 1206 | |
| 1207 | if (SYMBOLP (c)) |
| 1208 | silly_event_symbol_error (c); |
| 1209 | |
| 1210 | if (INTEGERP (c) |
| 1211 | && (XINT (c) & meta_bit) |
| 1212 | && !metized) |
| 1213 | { |
| 1214 | c = meta_prefix_char; |
| 1215 | metized = 1; |
| 1216 | } |
| 1217 | else |
| 1218 | { |
| 1219 | if (INTEGERP (c)) |
| 1220 | XSETINT (c, XINT (c) & ~meta_bit); |
| 1221 | |
| 1222 | metized = 0; |
| 1223 | idx++; |
| 1224 | } |
| 1225 | |
| 1226 | if (!INTEGERP (c) && !SYMBOLP (c) |
| 1227 | && (!CONSP (c) |
| 1228 | /* If C is a range, it must be a leaf. */ |
| 1229 | || (INTEGERP (XCAR (c)) && idx != length))) |
| 1230 | error ("Key sequence contains invalid event"); |
| 1231 | |
| 1232 | if (idx == length) |
| 1233 | RETURN_UNGCPRO (store_in_keymap (keymap, c, def)); |
| 1234 | |
| 1235 | cmd = access_keymap (keymap, c, 0, 1, 1); |
| 1236 | |
| 1237 | /* If this key is undefined, make it a prefix. */ |
| 1238 | if (NILP (cmd)) |
| 1239 | cmd = define_as_prefix (keymap, c); |
| 1240 | |
| 1241 | keymap = get_keymap (cmd, 0, 1); |
| 1242 | if (!CONSP (keymap)) |
| 1243 | /* We must use Fkey_description rather than just passing key to |
| 1244 | error; key might be a vector, not a string. */ |
| 1245 | error ("Key sequence %s starts with non-prefix key %s", |
| 1246 | SDATA (Fkey_description (key, Qnil)), |
| 1247 | SDATA (Fkey_description (Fsubstring (key, make_number (0), |
| 1248 | make_number (idx)), |
| 1249 | Qnil))); |
| 1250 | } |
| 1251 | } |
| 1252 | |
| 1253 | /* This function may GC (it calls Fkey_binding). */ |
| 1254 | |
| 1255 | DEFUN ("command-remapping", Fcommand_remapping, Scommand_remapping, 1, 3, 0, |
| 1256 | doc: /* Return the remapping for command COMMAND. |
| 1257 | Returns nil if COMMAND is not remapped (or not a symbol). |
| 1258 | |
| 1259 | If the optional argument POSITION is non-nil, it specifies a mouse |
| 1260 | position as returned by `event-start' and `event-end', and the |
| 1261 | remapping occurs in the keymaps associated with it. It can also be a |
| 1262 | number or marker, in which case the keymap properties at the specified |
| 1263 | buffer position instead of point are used. The KEYMAPS argument is |
| 1264 | ignored if POSITION is non-nil. |
| 1265 | |
| 1266 | If the optional argument KEYMAPS is non-nil, it should be a list of |
| 1267 | keymaps to search for command remapping. Otherwise, search for the |
| 1268 | remapping in all currently active keymaps. */) |
| 1269 | (command, position, keymaps) |
| 1270 | Lisp_Object command, position, keymaps; |
| 1271 | { |
| 1272 | if (!SYMBOLP (command)) |
| 1273 | return Qnil; |
| 1274 | |
| 1275 | ASET (command_remapping_vector, 1, command); |
| 1276 | |
| 1277 | if (NILP (keymaps)) |
| 1278 | return Fkey_binding (command_remapping_vector, Qnil, Qt, position); |
| 1279 | else |
| 1280 | { |
| 1281 | Lisp_Object maps, binding; |
| 1282 | |
| 1283 | for (maps = keymaps; !NILP (maps); maps = Fcdr (maps)) |
| 1284 | { |
| 1285 | binding = Flookup_key (Fcar (maps), command_remapping_vector, Qnil); |
| 1286 | if (!NILP (binding) && !INTEGERP (binding)) |
| 1287 | return binding; |
| 1288 | } |
| 1289 | return Qnil; |
| 1290 | } |
| 1291 | } |
| 1292 | |
| 1293 | /* Value is number if KEY is too long; nil if valid but has no definition. */ |
| 1294 | /* GC is possible in this function if it autoloads a keymap. */ |
| 1295 | |
| 1296 | DEFUN ("lookup-key", Flookup_key, Slookup_key, 2, 3, 0, |
| 1297 | doc: /* In keymap KEYMAP, look up key sequence KEY. Return the definition. |
| 1298 | A value of nil means undefined. See doc of `define-key' |
| 1299 | for kinds of definitions. |
| 1300 | |
| 1301 | A number as value means KEY is "too long"; |
| 1302 | that is, characters or symbols in it except for the last one |
| 1303 | fail to be a valid sequence of prefix characters in KEYMAP. |
| 1304 | The number is how many characters at the front of KEY |
| 1305 | it takes to reach a non-prefix key. |
| 1306 | |
| 1307 | Normally, `lookup-key' ignores bindings for t, which act as default |
| 1308 | bindings, used when nothing else in the keymap applies; this makes it |
| 1309 | usable as a general function for probing keymaps. However, if the |
| 1310 | third optional argument ACCEPT-DEFAULT is non-nil, `lookup-key' will |
| 1311 | recognize the default bindings, just as `read-key-sequence' does. */) |
| 1312 | (keymap, key, accept_default) |
| 1313 | Lisp_Object keymap; |
| 1314 | Lisp_Object key; |
| 1315 | Lisp_Object accept_default; |
| 1316 | { |
| 1317 | register int idx; |
| 1318 | register Lisp_Object cmd; |
| 1319 | register Lisp_Object c; |
| 1320 | int length; |
| 1321 | int t_ok = !NILP (accept_default); |
| 1322 | struct gcpro gcpro1, gcpro2; |
| 1323 | |
| 1324 | GCPRO2 (keymap, key); |
| 1325 | keymap = get_keymap (keymap, 1, 1); |
| 1326 | |
| 1327 | CHECK_VECTOR_OR_STRING (key); |
| 1328 | |
| 1329 | length = XFASTINT (Flength (key)); |
| 1330 | if (length == 0) |
| 1331 | RETURN_UNGCPRO (keymap); |
| 1332 | |
| 1333 | idx = 0; |
| 1334 | while (1) |
| 1335 | { |
| 1336 | c = Faref (key, make_number (idx++)); |
| 1337 | |
| 1338 | if (CONSP (c) && lucid_event_type_list_p (c)) |
| 1339 | c = Fevent_convert_list (c); |
| 1340 | |
| 1341 | /* Turn the 8th bit of string chars into a meta modifier. */ |
| 1342 | if (STRINGP (key) && XINT (c) & 0x80 && !STRING_MULTIBYTE (key)) |
| 1343 | XSETINT (c, (XINT (c) | meta_modifier) & ~0x80); |
| 1344 | |
| 1345 | /* Allow string since binding for `menu-bar-select-buffer' |
| 1346 | includes the buffer name in the key sequence. */ |
| 1347 | if (!INTEGERP (c) && !SYMBOLP (c) && !CONSP (c) && !STRINGP (c)) |
| 1348 | error ("Key sequence contains invalid event"); |
| 1349 | |
| 1350 | cmd = access_keymap (keymap, c, t_ok, 0, 1); |
| 1351 | if (idx == length) |
| 1352 | RETURN_UNGCPRO (cmd); |
| 1353 | |
| 1354 | keymap = get_keymap (cmd, 0, 1); |
| 1355 | if (!CONSP (keymap)) |
| 1356 | RETURN_UNGCPRO (make_number (idx)); |
| 1357 | |
| 1358 | QUIT; |
| 1359 | } |
| 1360 | } |
| 1361 | |
| 1362 | /* Make KEYMAP define event C as a keymap (i.e., as a prefix). |
| 1363 | Assume that currently it does not define C at all. |
| 1364 | Return the keymap. */ |
| 1365 | |
| 1366 | static Lisp_Object |
| 1367 | define_as_prefix (keymap, c) |
| 1368 | Lisp_Object keymap, c; |
| 1369 | { |
| 1370 | Lisp_Object cmd; |
| 1371 | |
| 1372 | cmd = Fmake_sparse_keymap (Qnil); |
| 1373 | /* If this key is defined as a prefix in an inherited keymap, |
| 1374 | make it a prefix in this map, and make its definition |
| 1375 | inherit the other prefix definition. */ |
| 1376 | cmd = nconc2 (cmd, access_keymap (keymap, c, 0, 0, 0)); |
| 1377 | store_in_keymap (keymap, c, cmd); |
| 1378 | |
| 1379 | return cmd; |
| 1380 | } |
| 1381 | |
| 1382 | /* Append a key to the end of a key sequence. We always make a vector. */ |
| 1383 | |
| 1384 | Lisp_Object |
| 1385 | append_key (key_sequence, key) |
| 1386 | Lisp_Object key_sequence, key; |
| 1387 | { |
| 1388 | Lisp_Object args[2]; |
| 1389 | |
| 1390 | args[0] = key_sequence; |
| 1391 | |
| 1392 | args[1] = Fcons (key, Qnil); |
| 1393 | return Fvconcat (2, args); |
| 1394 | } |
| 1395 | |
| 1396 | /* Given a event type C which is a symbol, |
| 1397 | signal an error if is a mistake such as RET or M-RET or C-DEL, etc. */ |
| 1398 | |
| 1399 | static void |
| 1400 | silly_event_symbol_error (c) |
| 1401 | Lisp_Object c; |
| 1402 | { |
| 1403 | Lisp_Object parsed, base, name, assoc; |
| 1404 | int modifiers; |
| 1405 | |
| 1406 | parsed = parse_modifiers (c); |
| 1407 | modifiers = (int) XUINT (XCAR (XCDR (parsed))); |
| 1408 | base = XCAR (parsed); |
| 1409 | name = Fsymbol_name (base); |
| 1410 | /* This alist includes elements such as ("RET" . "\\r"). */ |
| 1411 | assoc = Fassoc (name, exclude_keys); |
| 1412 | |
| 1413 | if (! NILP (assoc)) |
| 1414 | { |
| 1415 | char new_mods[sizeof ("\\A-\\C-\\H-\\M-\\S-\\s-")]; |
| 1416 | char *p = new_mods; |
| 1417 | Lisp_Object keystring; |
| 1418 | if (modifiers & alt_modifier) |
| 1419 | { *p++ = '\\'; *p++ = 'A'; *p++ = '-'; } |
| 1420 | if (modifiers & ctrl_modifier) |
| 1421 | { *p++ = '\\'; *p++ = 'C'; *p++ = '-'; } |
| 1422 | if (modifiers & hyper_modifier) |
| 1423 | { *p++ = '\\'; *p++ = 'H'; *p++ = '-'; } |
| 1424 | if (modifiers & meta_modifier) |
| 1425 | { *p++ = '\\'; *p++ = 'M'; *p++ = '-'; } |
| 1426 | if (modifiers & shift_modifier) |
| 1427 | { *p++ = '\\'; *p++ = 'S'; *p++ = '-'; } |
| 1428 | if (modifiers & super_modifier) |
| 1429 | { *p++ = '\\'; *p++ = 's'; *p++ = '-'; } |
| 1430 | *p = 0; |
| 1431 | |
| 1432 | c = reorder_modifiers (c); |
| 1433 | keystring = concat2 (build_string (new_mods), XCDR (assoc)); |
| 1434 | |
| 1435 | error ((modifiers & ~meta_modifier |
| 1436 | ? "To bind the key %s, use [?%s], not [%s]" |
| 1437 | : "To bind the key %s, use \"%s\", not [%s]"), |
| 1438 | SDATA (SYMBOL_NAME (c)), SDATA (keystring), |
| 1439 | SDATA (SYMBOL_NAME (c))); |
| 1440 | } |
| 1441 | } |
| 1442 | \f |
| 1443 | /* Global, local, and minor mode keymap stuff. */ |
| 1444 | |
| 1445 | /* We can't put these variables inside current_minor_maps, since under |
| 1446 | some systems, static gets macro-defined to be the empty string. |
| 1447 | Ickypoo. */ |
| 1448 | static Lisp_Object *cmm_modes = NULL, *cmm_maps = NULL; |
| 1449 | static int cmm_size = 0; |
| 1450 | |
| 1451 | /* Store a pointer to an array of the currently active minor modes in |
| 1452 | *modeptr, a pointer to an array of the keymaps of the currently |
| 1453 | active minor modes in *mapptr, and return the number of maps |
| 1454 | *mapptr contains. |
| 1455 | |
| 1456 | This function always returns a pointer to the same buffer, and may |
| 1457 | free or reallocate it, so if you want to keep it for a long time or |
| 1458 | hand it out to lisp code, copy it. This procedure will be called |
| 1459 | for every key sequence read, so the nice lispy approach (return a |
| 1460 | new assoclist, list, what have you) for each invocation would |
| 1461 | result in a lot of consing over time. |
| 1462 | |
| 1463 | If we used xrealloc/xmalloc and ran out of memory, they would throw |
| 1464 | back to the command loop, which would try to read a key sequence, |
| 1465 | which would call this function again, resulting in an infinite |
| 1466 | loop. Instead, we'll use realloc/malloc and silently truncate the |
| 1467 | list, let the key sequence be read, and hope some other piece of |
| 1468 | code signals the error. */ |
| 1469 | int |
| 1470 | current_minor_maps (modeptr, mapptr) |
| 1471 | Lisp_Object **modeptr, **mapptr; |
| 1472 | { |
| 1473 | int i = 0; |
| 1474 | int list_number = 0; |
| 1475 | Lisp_Object alist, assoc, var, val; |
| 1476 | Lisp_Object emulation_alists; |
| 1477 | Lisp_Object lists[2]; |
| 1478 | |
| 1479 | emulation_alists = Vemulation_mode_map_alists; |
| 1480 | lists[0] = Vminor_mode_overriding_map_alist; |
| 1481 | lists[1] = Vminor_mode_map_alist; |
| 1482 | |
| 1483 | for (list_number = 0; list_number < 2; list_number++) |
| 1484 | { |
| 1485 | if (CONSP (emulation_alists)) |
| 1486 | { |
| 1487 | alist = XCAR (emulation_alists); |
| 1488 | emulation_alists = XCDR (emulation_alists); |
| 1489 | if (SYMBOLP (alist)) |
| 1490 | alist = find_symbol_value (alist); |
| 1491 | list_number = -1; |
| 1492 | } |
| 1493 | else |
| 1494 | alist = lists[list_number]; |
| 1495 | |
| 1496 | for ( ; CONSP (alist); alist = XCDR (alist)) |
| 1497 | if ((assoc = XCAR (alist), CONSP (assoc)) |
| 1498 | && (var = XCAR (assoc), SYMBOLP (var)) |
| 1499 | && (val = find_symbol_value (var), !EQ (val, Qunbound)) |
| 1500 | && !NILP (val)) |
| 1501 | { |
| 1502 | Lisp_Object temp; |
| 1503 | |
| 1504 | /* If a variable has an entry in Vminor_mode_overriding_map_alist, |
| 1505 | and also an entry in Vminor_mode_map_alist, |
| 1506 | ignore the latter. */ |
| 1507 | if (list_number == 1) |
| 1508 | { |
| 1509 | val = assq_no_quit (var, lists[0]); |
| 1510 | if (!NILP (val)) |
| 1511 | continue; |
| 1512 | } |
| 1513 | |
| 1514 | if (i >= cmm_size) |
| 1515 | { |
| 1516 | int newsize, allocsize; |
| 1517 | Lisp_Object *newmodes, *newmaps; |
| 1518 | |
| 1519 | newsize = cmm_size == 0 ? 30 : cmm_size * 2; |
| 1520 | allocsize = newsize * sizeof *newmodes; |
| 1521 | |
| 1522 | /* Use malloc here. See the comment above this function. |
| 1523 | Avoid realloc here; it causes spurious traps on GNU/Linux [KFS] */ |
| 1524 | BLOCK_INPUT; |
| 1525 | newmodes = (Lisp_Object *) malloc (allocsize); |
| 1526 | if (newmodes) |
| 1527 | { |
| 1528 | if (cmm_modes) |
| 1529 | { |
| 1530 | bcopy (cmm_modes, newmodes, cmm_size * sizeof cmm_modes[0]); |
| 1531 | free (cmm_modes); |
| 1532 | } |
| 1533 | cmm_modes = newmodes; |
| 1534 | } |
| 1535 | |
| 1536 | newmaps = (Lisp_Object *) malloc (allocsize); |
| 1537 | if (newmaps) |
| 1538 | { |
| 1539 | if (cmm_maps) |
| 1540 | { |
| 1541 | bcopy (cmm_maps, newmaps, cmm_size * sizeof cmm_maps[0]); |
| 1542 | free (cmm_maps); |
| 1543 | } |
| 1544 | cmm_maps = newmaps; |
| 1545 | } |
| 1546 | UNBLOCK_INPUT; |
| 1547 | |
| 1548 | if (newmodes == NULL || newmaps == NULL) |
| 1549 | break; |
| 1550 | cmm_size = newsize; |
| 1551 | } |
| 1552 | |
| 1553 | /* Get the keymap definition--or nil if it is not defined. */ |
| 1554 | temp = Findirect_function (XCDR (assoc), Qt); |
| 1555 | if (!NILP (temp)) |
| 1556 | { |
| 1557 | cmm_modes[i] = var; |
| 1558 | cmm_maps [i] = temp; |
| 1559 | i++; |
| 1560 | } |
| 1561 | } |
| 1562 | } |
| 1563 | |
| 1564 | if (modeptr) *modeptr = cmm_modes; |
| 1565 | if (mapptr) *mapptr = cmm_maps; |
| 1566 | return i; |
| 1567 | } |
| 1568 | |
| 1569 | DEFUN ("current-active-maps", Fcurrent_active_maps, Scurrent_active_maps, |
| 1570 | 0, 2, 0, |
| 1571 | doc: /* Return a list of the currently active keymaps. |
| 1572 | OLP if non-nil indicates that we should obey `overriding-local-map' and |
| 1573 | `overriding-terminal-local-map'. POSITION can specify a click position |
| 1574 | like in the respective argument of `key-binding'. */) |
| 1575 | (olp, position) |
| 1576 | Lisp_Object olp, position; |
| 1577 | { |
| 1578 | int count = SPECPDL_INDEX (); |
| 1579 | |
| 1580 | Lisp_Object keymaps; |
| 1581 | |
| 1582 | /* If a mouse click position is given, our variables are based on |
| 1583 | the buffer clicked on, not the current buffer. So we may have to |
| 1584 | switch the buffer here. */ |
| 1585 | |
| 1586 | if (CONSP (position)) |
| 1587 | { |
| 1588 | Lisp_Object window; |
| 1589 | |
| 1590 | window = POSN_WINDOW (position); |
| 1591 | |
| 1592 | if (WINDOWP (window) |
| 1593 | && BUFFERP (XWINDOW (window)->buffer) |
| 1594 | && XBUFFER (XWINDOW (window)->buffer) != current_buffer) |
| 1595 | { |
| 1596 | /* Arrange to go back to the original buffer once we're done |
| 1597 | processing the key sequence. We don't use |
| 1598 | save_excursion_{save,restore} here, in analogy to |
| 1599 | `read-key-sequence' to avoid saving point. Maybe this |
| 1600 | would not be a problem here, but it is easier to keep |
| 1601 | things the same. |
| 1602 | */ |
| 1603 | |
| 1604 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); |
| 1605 | |
| 1606 | set_buffer_internal (XBUFFER (XWINDOW (window)->buffer)); |
| 1607 | } |
| 1608 | } |
| 1609 | |
| 1610 | keymaps = Fcons (current_global_map, Qnil); |
| 1611 | |
| 1612 | if (!NILP (olp)) |
| 1613 | { |
| 1614 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) |
| 1615 | keymaps = Fcons (current_kboard->Voverriding_terminal_local_map, keymaps); |
| 1616 | /* The doc said that overriding-terminal-local-map should |
| 1617 | override overriding-local-map. The code used them both, |
| 1618 | but it seems clearer to use just one. rms, jan 2005. */ |
| 1619 | else if (!NILP (Voverriding_local_map)) |
| 1620 | keymaps = Fcons (Voverriding_local_map, keymaps); |
| 1621 | } |
| 1622 | if (NILP (XCDR (keymaps))) |
| 1623 | { |
| 1624 | Lisp_Object *maps; |
| 1625 | int nmaps, i; |
| 1626 | |
| 1627 | Lisp_Object keymap, local_map; |
| 1628 | EMACS_INT pt; |
| 1629 | |
| 1630 | pt = INTEGERP (position) ? XINT (position) |
| 1631 | : MARKERP (position) ? marker_position (position) |
| 1632 | : PT; |
| 1633 | |
| 1634 | /* Get the buffer local maps, possibly overriden by text or |
| 1635 | overlay properties */ |
| 1636 | |
| 1637 | local_map = get_local_map (pt, current_buffer, Qlocal_map); |
| 1638 | keymap = get_local_map (pt, current_buffer, Qkeymap); |
| 1639 | |
| 1640 | if (CONSP (position)) |
| 1641 | { |
| 1642 | Lisp_Object string; |
| 1643 | |
| 1644 | /* For a mouse click, get the local text-property keymap |
| 1645 | of the place clicked on, rather than point. */ |
| 1646 | |
| 1647 | if (POSN_INBUFFER_P (position)) |
| 1648 | { |
| 1649 | Lisp_Object pos; |
| 1650 | |
| 1651 | pos = POSN_BUFFER_POSN (position); |
| 1652 | if (INTEGERP (pos) |
| 1653 | && XINT (pos) >= BEG && XINT (pos) <= Z) |
| 1654 | { |
| 1655 | local_map = get_local_map (XINT (pos), |
| 1656 | current_buffer, Qlocal_map); |
| 1657 | |
| 1658 | keymap = get_local_map (XINT (pos), |
| 1659 | current_buffer, Qkeymap); |
| 1660 | } |
| 1661 | } |
| 1662 | |
| 1663 | /* If on a mode line string with a local keymap, |
| 1664 | or for a click on a string, i.e. overlay string or a |
| 1665 | string displayed via the `display' property, |
| 1666 | consider `local-map' and `keymap' properties of |
| 1667 | that string. */ |
| 1668 | |
| 1669 | if (string = POSN_STRING (position), |
| 1670 | (CONSP (string) && STRINGP (XCAR (string)))) |
| 1671 | { |
| 1672 | Lisp_Object pos, map; |
| 1673 | |
| 1674 | pos = XCDR (string); |
| 1675 | string = XCAR (string); |
| 1676 | if (INTEGERP (pos) |
| 1677 | && XINT (pos) >= 0 |
| 1678 | && XINT (pos) < SCHARS (string)) |
| 1679 | { |
| 1680 | map = Fget_text_property (pos, Qlocal_map, string); |
| 1681 | if (!NILP (map)) |
| 1682 | local_map = map; |
| 1683 | |
| 1684 | map = Fget_text_property (pos, Qkeymap, string); |
| 1685 | if (!NILP (map)) |
| 1686 | keymap = map; |
| 1687 | } |
| 1688 | } |
| 1689 | |
| 1690 | } |
| 1691 | |
| 1692 | if (!NILP (local_map)) |
| 1693 | keymaps = Fcons (local_map, keymaps); |
| 1694 | |
| 1695 | /* Now put all the minor mode keymaps on the list. */ |
| 1696 | nmaps = current_minor_maps (0, &maps); |
| 1697 | |
| 1698 | for (i = --nmaps; i >= 0; i--) |
| 1699 | if (!NILP (maps[i])) |
| 1700 | keymaps = Fcons (maps[i], keymaps); |
| 1701 | |
| 1702 | if (!NILP (keymap)) |
| 1703 | keymaps = Fcons (keymap, keymaps); |
| 1704 | } |
| 1705 | |
| 1706 | unbind_to (count, Qnil); |
| 1707 | |
| 1708 | return keymaps; |
| 1709 | } |
| 1710 | |
| 1711 | /* GC is possible in this function if it autoloads a keymap. */ |
| 1712 | |
| 1713 | DEFUN ("key-binding", Fkey_binding, Skey_binding, 1, 4, 0, |
| 1714 | doc: /* Return the binding for command KEY in current keymaps. |
| 1715 | KEY is a string or vector, a sequence of keystrokes. |
| 1716 | The binding is probably a symbol with a function definition. |
| 1717 | |
| 1718 | Normally, `key-binding' ignores bindings for t, which act as default |
| 1719 | bindings, used when nothing else in the keymap applies; this makes it |
| 1720 | usable as a general function for probing keymaps. However, if the |
| 1721 | optional second argument ACCEPT-DEFAULT is non-nil, `key-binding' does |
| 1722 | recognize the default bindings, just as `read-key-sequence' does. |
| 1723 | |
| 1724 | Like the normal command loop, `key-binding' will remap the command |
| 1725 | resulting from looking up KEY by looking up the command in the |
| 1726 | current keymaps. However, if the optional third argument NO-REMAP |
| 1727 | is non-nil, `key-binding' returns the unmapped command. |
| 1728 | |
| 1729 | If KEY is a key sequence initiated with the mouse, the used keymaps |
| 1730 | will depend on the clicked mouse position with regard to the buffer |
| 1731 | and possible local keymaps on strings. |
| 1732 | |
| 1733 | If the optional argument POSITION is non-nil, it specifies a mouse |
| 1734 | position as returned by `event-start' and `event-end', and the lookup |
| 1735 | occurs in the keymaps associated with it instead of KEY. It can also |
| 1736 | be a number or marker, in which case the keymap properties at the |
| 1737 | specified buffer position instead of point are used. |
| 1738 | */) |
| 1739 | (key, accept_default, no_remap, position) |
| 1740 | Lisp_Object key, accept_default, no_remap, position; |
| 1741 | { |
| 1742 | Lisp_Object *maps, value; |
| 1743 | int nmaps, i; |
| 1744 | struct gcpro gcpro1, gcpro2; |
| 1745 | int count = SPECPDL_INDEX (); |
| 1746 | |
| 1747 | GCPRO2 (key, position); |
| 1748 | |
| 1749 | if (NILP (position) && VECTORP (key)) |
| 1750 | { |
| 1751 | Lisp_Object event |
| 1752 | /* mouse events may have a symbolic prefix indicating the |
| 1753 | scrollbar or mode line */ |
| 1754 | = AREF (key, SYMBOLP (AREF (key, 0)) && ASIZE (key) > 1 ? 1 : 0); |
| 1755 | |
| 1756 | /* We are not interested in locations without event data */ |
| 1757 | |
| 1758 | if (EVENT_HAS_PARAMETERS (event) && CONSP (XCDR (event))) |
| 1759 | { |
| 1760 | Lisp_Object kind = EVENT_HEAD_KIND (EVENT_HEAD (event)); |
| 1761 | if (EQ (kind, Qmouse_click)) |
| 1762 | position = EVENT_START (event); |
| 1763 | } |
| 1764 | } |
| 1765 | |
| 1766 | /* Key sequences beginning with mouse clicks |
| 1767 | are read using the keymaps of the buffer clicked on, not |
| 1768 | the current buffer. So we may have to switch the buffer |
| 1769 | here. */ |
| 1770 | |
| 1771 | if (CONSP (position)) |
| 1772 | { |
| 1773 | Lisp_Object window; |
| 1774 | |
| 1775 | window = POSN_WINDOW (position); |
| 1776 | |
| 1777 | if (WINDOWP (window) |
| 1778 | && BUFFERP (XWINDOW (window)->buffer) |
| 1779 | && XBUFFER (XWINDOW (window)->buffer) != current_buffer) |
| 1780 | { |
| 1781 | /* Arrange to go back to the original buffer once we're done |
| 1782 | processing the key sequence. We don't use |
| 1783 | save_excursion_{save,restore} here, in analogy to |
| 1784 | `read-key-sequence' to avoid saving point. Maybe this |
| 1785 | would not be a problem here, but it is easier to keep |
| 1786 | things the same. |
| 1787 | */ |
| 1788 | |
| 1789 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); |
| 1790 | |
| 1791 | set_buffer_internal (XBUFFER (XWINDOW (window)->buffer)); |
| 1792 | } |
| 1793 | } |
| 1794 | |
| 1795 | if (! NILP (current_kboard->Voverriding_terminal_local_map)) |
| 1796 | { |
| 1797 | value = Flookup_key (current_kboard->Voverriding_terminal_local_map, |
| 1798 | key, accept_default); |
| 1799 | if (! NILP (value) && !INTEGERP (value)) |
| 1800 | goto done; |
| 1801 | } |
| 1802 | else if (! NILP (Voverriding_local_map)) |
| 1803 | { |
| 1804 | value = Flookup_key (Voverriding_local_map, key, accept_default); |
| 1805 | if (! NILP (value) && !INTEGERP (value)) |
| 1806 | goto done; |
| 1807 | } |
| 1808 | else |
| 1809 | { |
| 1810 | Lisp_Object keymap, local_map; |
| 1811 | EMACS_INT pt; |
| 1812 | |
| 1813 | pt = INTEGERP (position) ? XINT (position) |
| 1814 | : MARKERP (position) ? marker_position (position) |
| 1815 | : PT; |
| 1816 | |
| 1817 | local_map = get_local_map (pt, current_buffer, Qlocal_map); |
| 1818 | keymap = get_local_map (pt, current_buffer, Qkeymap); |
| 1819 | |
| 1820 | if (CONSP (position)) |
| 1821 | { |
| 1822 | Lisp_Object string; |
| 1823 | |
| 1824 | /* For a mouse click, get the local text-property keymap |
| 1825 | of the place clicked on, rather than point. */ |
| 1826 | |
| 1827 | if (POSN_INBUFFER_P (position)) |
| 1828 | { |
| 1829 | Lisp_Object pos; |
| 1830 | |
| 1831 | pos = POSN_BUFFER_POSN (position); |
| 1832 | if (INTEGERP (pos) |
| 1833 | && XINT (pos) >= BEG && XINT (pos) <= Z) |
| 1834 | { |
| 1835 | local_map = get_local_map (XINT (pos), |
| 1836 | current_buffer, Qlocal_map); |
| 1837 | |
| 1838 | keymap = get_local_map (XINT (pos), |
| 1839 | current_buffer, Qkeymap); |
| 1840 | } |
| 1841 | } |
| 1842 | |
| 1843 | /* If on a mode line string with a local keymap, |
| 1844 | or for a click on a string, i.e. overlay string or a |
| 1845 | string displayed via the `display' property, |
| 1846 | consider `local-map' and `keymap' properties of |
| 1847 | that string. */ |
| 1848 | |
| 1849 | if (string = POSN_STRING (position), |
| 1850 | (CONSP (string) && STRINGP (XCAR (string)))) |
| 1851 | { |
| 1852 | Lisp_Object pos, map; |
| 1853 | |
| 1854 | pos = XCDR (string); |
| 1855 | string = XCAR (string); |
| 1856 | if (INTEGERP (pos) |
| 1857 | && XINT (pos) >= 0 |
| 1858 | && XINT (pos) < SCHARS (string)) |
| 1859 | { |
| 1860 | map = Fget_text_property (pos, Qlocal_map, string); |
| 1861 | if (!NILP (map)) |
| 1862 | local_map = map; |
| 1863 | |
| 1864 | map = Fget_text_property (pos, Qkeymap, string); |
| 1865 | if (!NILP (map)) |
| 1866 | keymap = map; |
| 1867 | } |
| 1868 | } |
| 1869 | |
| 1870 | } |
| 1871 | |
| 1872 | if (! NILP (keymap)) |
| 1873 | { |
| 1874 | value = Flookup_key (keymap, key, accept_default); |
| 1875 | if (! NILP (value) && !INTEGERP (value)) |
| 1876 | goto done; |
| 1877 | } |
| 1878 | |
| 1879 | nmaps = current_minor_maps (0, &maps); |
| 1880 | /* Note that all these maps are GCPRO'd |
| 1881 | in the places where we found them. */ |
| 1882 | |
| 1883 | for (i = 0; i < nmaps; i++) |
| 1884 | if (! NILP (maps[i])) |
| 1885 | { |
| 1886 | value = Flookup_key (maps[i], key, accept_default); |
| 1887 | if (! NILP (value) && !INTEGERP (value)) |
| 1888 | goto done; |
| 1889 | } |
| 1890 | |
| 1891 | if (! NILP (local_map)) |
| 1892 | { |
| 1893 | value = Flookup_key (local_map, key, accept_default); |
| 1894 | if (! NILP (value) && !INTEGERP (value)) |
| 1895 | goto done; |
| 1896 | } |
| 1897 | } |
| 1898 | |
| 1899 | value = Flookup_key (current_global_map, key, accept_default); |
| 1900 | |
| 1901 | done: |
| 1902 | unbind_to (count, Qnil); |
| 1903 | |
| 1904 | UNGCPRO; |
| 1905 | if (NILP (value) || INTEGERP (value)) |
| 1906 | return Qnil; |
| 1907 | |
| 1908 | /* If the result of the ordinary keymap lookup is an interactive |
| 1909 | command, look for a key binding (ie. remapping) for that command. */ |
| 1910 | |
| 1911 | if (NILP (no_remap) && SYMBOLP (value)) |
| 1912 | { |
| 1913 | Lisp_Object value1; |
| 1914 | if (value1 = Fcommand_remapping (value, position, Qnil), !NILP (value1)) |
| 1915 | value = value1; |
| 1916 | } |
| 1917 | |
| 1918 | return value; |
| 1919 | } |
| 1920 | |
| 1921 | /* GC is possible in this function if it autoloads a keymap. */ |
| 1922 | |
| 1923 | DEFUN ("local-key-binding", Flocal_key_binding, Slocal_key_binding, 1, 2, 0, |
| 1924 | doc: /* Return the binding for command KEYS in current local keymap only. |
| 1925 | KEYS is a string or vector, a sequence of keystrokes. |
| 1926 | The binding is probably a symbol with a function definition. |
| 1927 | |
| 1928 | If optional argument ACCEPT-DEFAULT is non-nil, recognize default |
| 1929 | bindings; see the description of `lookup-key' for more details about this. */) |
| 1930 | (keys, accept_default) |
| 1931 | Lisp_Object keys, accept_default; |
| 1932 | { |
| 1933 | register Lisp_Object map; |
| 1934 | map = current_buffer->keymap; |
| 1935 | if (NILP (map)) |
| 1936 | return Qnil; |
| 1937 | return Flookup_key (map, keys, accept_default); |
| 1938 | } |
| 1939 | |
| 1940 | /* GC is possible in this function if it autoloads a keymap. */ |
| 1941 | |
| 1942 | DEFUN ("global-key-binding", Fglobal_key_binding, Sglobal_key_binding, 1, 2, 0, |
| 1943 | doc: /* Return the binding for command KEYS in current global keymap only. |
| 1944 | KEYS is a string or vector, a sequence of keystrokes. |
| 1945 | The binding is probably a symbol with a function definition. |
| 1946 | This function's return values are the same as those of `lookup-key' |
| 1947 | \(which see). |
| 1948 | |
| 1949 | If optional argument ACCEPT-DEFAULT is non-nil, recognize default |
| 1950 | bindings; see the description of `lookup-key' for more details about this. */) |
| 1951 | (keys, accept_default) |
| 1952 | Lisp_Object keys, accept_default; |
| 1953 | { |
| 1954 | return Flookup_key (current_global_map, keys, accept_default); |
| 1955 | } |
| 1956 | |
| 1957 | /* GC is possible in this function if it autoloads a keymap. */ |
| 1958 | |
| 1959 | DEFUN ("minor-mode-key-binding", Fminor_mode_key_binding, Sminor_mode_key_binding, 1, 2, 0, |
| 1960 | doc: /* Find the visible minor mode bindings of KEY. |
| 1961 | Return an alist of pairs (MODENAME . BINDING), where MODENAME is |
| 1962 | the symbol which names the minor mode binding KEY, and BINDING is |
| 1963 | KEY's definition in that mode. In particular, if KEY has no |
| 1964 | minor-mode bindings, return nil. If the first binding is a |
| 1965 | non-prefix, all subsequent bindings will be omitted, since they would |
| 1966 | be ignored. Similarly, the list doesn't include non-prefix bindings |
| 1967 | that come after prefix bindings. |
| 1968 | |
| 1969 | If optional argument ACCEPT-DEFAULT is non-nil, recognize default |
| 1970 | bindings; see the description of `lookup-key' for more details about this. */) |
| 1971 | (key, accept_default) |
| 1972 | Lisp_Object key, accept_default; |
| 1973 | { |
| 1974 | Lisp_Object *modes, *maps; |
| 1975 | int nmaps; |
| 1976 | Lisp_Object binding; |
| 1977 | int i, j; |
| 1978 | struct gcpro gcpro1, gcpro2; |
| 1979 | |
| 1980 | nmaps = current_minor_maps (&modes, &maps); |
| 1981 | /* Note that all these maps are GCPRO'd |
| 1982 | in the places where we found them. */ |
| 1983 | |
| 1984 | binding = Qnil; |
| 1985 | GCPRO2 (key, binding); |
| 1986 | |
| 1987 | for (i = j = 0; i < nmaps; i++) |
| 1988 | if (!NILP (maps[i]) |
| 1989 | && !NILP (binding = Flookup_key (maps[i], key, accept_default)) |
| 1990 | && !INTEGERP (binding)) |
| 1991 | { |
| 1992 | if (KEYMAPP (binding)) |
| 1993 | maps[j++] = Fcons (modes[i], binding); |
| 1994 | else if (j == 0) |
| 1995 | RETURN_UNGCPRO (Fcons (Fcons (modes[i], binding), Qnil)); |
| 1996 | } |
| 1997 | |
| 1998 | UNGCPRO; |
| 1999 | return Flist (j, maps); |
| 2000 | } |
| 2001 | |
| 2002 | DEFUN ("define-prefix-command", Fdefine_prefix_command, Sdefine_prefix_command, 1, 3, 0, |
| 2003 | doc: /* Define COMMAND as a prefix command. COMMAND should be a symbol. |
| 2004 | A new sparse keymap is stored as COMMAND's function definition and its value. |
| 2005 | If a second optional argument MAPVAR is given, the map is stored as |
| 2006 | its value instead of as COMMAND's value; but COMMAND is still defined |
| 2007 | as a function. |
| 2008 | The third optional argument NAME, if given, supplies a menu name |
| 2009 | string for the map. This is required to use the keymap as a menu. |
| 2010 | This function returns COMMAND. */) |
| 2011 | (command, mapvar, name) |
| 2012 | Lisp_Object command, mapvar, name; |
| 2013 | { |
| 2014 | Lisp_Object map; |
| 2015 | map = Fmake_sparse_keymap (name); |
| 2016 | Ffset (command, map); |
| 2017 | if (!NILP (mapvar)) |
| 2018 | Fset (mapvar, map); |
| 2019 | else |
| 2020 | Fset (command, map); |
| 2021 | return command; |
| 2022 | } |
| 2023 | |
| 2024 | DEFUN ("use-global-map", Fuse_global_map, Suse_global_map, 1, 1, 0, |
| 2025 | doc: /* Select KEYMAP as the global keymap. */) |
| 2026 | (keymap) |
| 2027 | Lisp_Object keymap; |
| 2028 | { |
| 2029 | keymap = get_keymap (keymap, 1, 1); |
| 2030 | current_global_map = keymap; |
| 2031 | |
| 2032 | return Qnil; |
| 2033 | } |
| 2034 | |
| 2035 | DEFUN ("use-local-map", Fuse_local_map, Suse_local_map, 1, 1, 0, |
| 2036 | doc: /* Select KEYMAP as the local keymap. |
| 2037 | If KEYMAP is nil, that means no local keymap. */) |
| 2038 | (keymap) |
| 2039 | Lisp_Object keymap; |
| 2040 | { |
| 2041 | if (!NILP (keymap)) |
| 2042 | keymap = get_keymap (keymap, 1, 1); |
| 2043 | |
| 2044 | current_buffer->keymap = keymap; |
| 2045 | |
| 2046 | return Qnil; |
| 2047 | } |
| 2048 | |
| 2049 | DEFUN ("current-local-map", Fcurrent_local_map, Scurrent_local_map, 0, 0, 0, |
| 2050 | doc: /* Return current buffer's local keymap, or nil if it has none. */) |
| 2051 | () |
| 2052 | { |
| 2053 | return current_buffer->keymap; |
| 2054 | } |
| 2055 | |
| 2056 | DEFUN ("current-global-map", Fcurrent_global_map, Scurrent_global_map, 0, 0, 0, |
| 2057 | doc: /* Return the current global keymap. */) |
| 2058 | () |
| 2059 | { |
| 2060 | return current_global_map; |
| 2061 | } |
| 2062 | |
| 2063 | DEFUN ("current-minor-mode-maps", Fcurrent_minor_mode_maps, Scurrent_minor_mode_maps, 0, 0, 0, |
| 2064 | doc: /* Return a list of keymaps for the minor modes of the current buffer. */) |
| 2065 | () |
| 2066 | { |
| 2067 | Lisp_Object *maps; |
| 2068 | int nmaps = current_minor_maps (0, &maps); |
| 2069 | |
| 2070 | return Flist (nmaps, maps); |
| 2071 | } |
| 2072 | \f |
| 2073 | /* Help functions for describing and documenting keymaps. */ |
| 2074 | |
| 2075 | struct accessible_keymaps_data { |
| 2076 | Lisp_Object maps, tail, thisseq; |
| 2077 | /* Does the current sequence end in the meta-prefix-char? */ |
| 2078 | int is_metized; |
| 2079 | }; |
| 2080 | |
| 2081 | static void |
| 2082 | accessible_keymaps_1 (key, cmd, args, data) |
| 2083 | Lisp_Object key, cmd, args; |
| 2084 | /* Use void* to be compatible with map_keymap_function_t. */ |
| 2085 | void *data; |
| 2086 | { |
| 2087 | struct accessible_keymaps_data *d = data; /* Cast! */ |
| 2088 | Lisp_Object maps = d->maps; |
| 2089 | Lisp_Object tail = d->tail; |
| 2090 | Lisp_Object thisseq = d->thisseq; |
| 2091 | int is_metized = d->is_metized && INTEGERP (key); |
| 2092 | Lisp_Object tem; |
| 2093 | |
| 2094 | cmd = get_keymap (get_keyelt (cmd, 0), 0, 0); |
| 2095 | if (NILP (cmd)) |
| 2096 | return; |
| 2097 | |
| 2098 | /* Look for and break cycles. */ |
| 2099 | while (!NILP (tem = Frassq (cmd, maps))) |
| 2100 | { |
| 2101 | Lisp_Object prefix = XCAR (tem); |
| 2102 | int lim = XINT (Flength (XCAR (tem))); |
| 2103 | if (lim <= XINT (Flength (thisseq))) |
| 2104 | { /* This keymap was already seen with a smaller prefix. */ |
| 2105 | int i = 0; |
| 2106 | while (i < lim && EQ (Faref (prefix, make_number (i)), |
| 2107 | Faref (thisseq, make_number (i)))) |
| 2108 | i++; |
| 2109 | if (i >= lim) |
| 2110 | /* `prefix' is a prefix of `thisseq' => there's a cycle. */ |
| 2111 | return; |
| 2112 | } |
| 2113 | /* This occurrence of `cmd' in `maps' does not correspond to a cycle, |
| 2114 | but maybe `cmd' occurs again further down in `maps', so keep |
| 2115 | looking. */ |
| 2116 | maps = XCDR (Fmemq (tem, maps)); |
| 2117 | } |
| 2118 | |
| 2119 | /* If the last key in thisseq is meta-prefix-char, |
| 2120 | turn it into a meta-ized keystroke. We know |
| 2121 | that the event we're about to append is an |
| 2122 | ascii keystroke since we're processing a |
| 2123 | keymap table. */ |
| 2124 | if (is_metized) |
| 2125 | { |
| 2126 | int meta_bit = meta_modifier; |
| 2127 | Lisp_Object last = make_number (XINT (Flength (thisseq)) - 1); |
| 2128 | tem = Fcopy_sequence (thisseq); |
| 2129 | |
| 2130 | Faset (tem, last, make_number (XINT (key) | meta_bit)); |
| 2131 | |
| 2132 | /* This new sequence is the same length as |
| 2133 | thisseq, so stick it in the list right |
| 2134 | after this one. */ |
| 2135 | XSETCDR (tail, |
| 2136 | Fcons (Fcons (tem, cmd), XCDR (tail))); |
| 2137 | } |
| 2138 | else |
| 2139 | { |
| 2140 | tem = append_key (thisseq, key); |
| 2141 | nconc2 (tail, Fcons (Fcons (tem, cmd), Qnil)); |
| 2142 | } |
| 2143 | } |
| 2144 | |
| 2145 | /* This function cannot GC. */ |
| 2146 | |
| 2147 | DEFUN ("accessible-keymaps", Faccessible_keymaps, Saccessible_keymaps, |
| 2148 | 1, 2, 0, |
| 2149 | doc: /* Find all keymaps accessible via prefix characters from KEYMAP. |
| 2150 | Returns a list of elements of the form (KEYS . MAP), where the sequence |
| 2151 | KEYS starting from KEYMAP gets you to MAP. These elements are ordered |
| 2152 | so that the KEYS increase in length. The first element is ([] . KEYMAP). |
| 2153 | An optional argument PREFIX, if non-nil, should be a key sequence; |
| 2154 | then the value includes only maps for prefixes that start with PREFIX. */) |
| 2155 | (keymap, prefix) |
| 2156 | Lisp_Object keymap, prefix; |
| 2157 | { |
| 2158 | Lisp_Object maps, tail; |
| 2159 | int prefixlen = XINT (Flength (prefix)); |
| 2160 | |
| 2161 | /* no need for gcpro because we don't autoload any keymaps. */ |
| 2162 | |
| 2163 | if (!NILP (prefix)) |
| 2164 | { |
| 2165 | /* If a prefix was specified, start with the keymap (if any) for |
| 2166 | that prefix, so we don't waste time considering other prefixes. */ |
| 2167 | Lisp_Object tem; |
| 2168 | tem = Flookup_key (keymap, prefix, Qt); |
| 2169 | /* Flookup_key may give us nil, or a number, |
| 2170 | if the prefix is not defined in this particular map. |
| 2171 | It might even give us a list that isn't a keymap. */ |
| 2172 | tem = get_keymap (tem, 0, 0); |
| 2173 | /* If the keymap is autoloaded `tem' is not a cons-cell, but we still |
| 2174 | want to return it. */ |
| 2175 | if (!NILP (tem)) |
| 2176 | { |
| 2177 | /* Convert PREFIX to a vector now, so that later on |
| 2178 | we don't have to deal with the possibility of a string. */ |
| 2179 | if (STRINGP (prefix)) |
| 2180 | { |
| 2181 | int i, i_byte, c; |
| 2182 | Lisp_Object copy; |
| 2183 | |
| 2184 | copy = Fmake_vector (make_number (SCHARS (prefix)), Qnil); |
| 2185 | for (i = 0, i_byte = 0; i < SCHARS (prefix);) |
| 2186 | { |
| 2187 | int i_before = i; |
| 2188 | |
| 2189 | FETCH_STRING_CHAR_ADVANCE (c, prefix, i, i_byte); |
| 2190 | if (SINGLE_BYTE_CHAR_P (c) && (c & 0200)) |
| 2191 | c ^= 0200 | meta_modifier; |
| 2192 | ASET (copy, i_before, make_number (c)); |
| 2193 | } |
| 2194 | prefix = copy; |
| 2195 | } |
| 2196 | maps = Fcons (Fcons (prefix, tem), Qnil); |
| 2197 | } |
| 2198 | else |
| 2199 | return Qnil; |
| 2200 | } |
| 2201 | else |
| 2202 | maps = Fcons (Fcons (Fmake_vector (make_number (0), Qnil), |
| 2203 | get_keymap (keymap, 1, 0)), |
| 2204 | Qnil); |
| 2205 | |
| 2206 | /* For each map in the list maps, |
| 2207 | look at any other maps it points to, |
| 2208 | and stick them at the end if they are not already in the list. |
| 2209 | |
| 2210 | This is a breadth-first traversal, where tail is the queue of |
| 2211 | nodes, and maps accumulates a list of all nodes visited. */ |
| 2212 | |
| 2213 | for (tail = maps; CONSP (tail); tail = XCDR (tail)) |
| 2214 | { |
| 2215 | struct accessible_keymaps_data data; |
| 2216 | register Lisp_Object thismap = Fcdr (XCAR (tail)); |
| 2217 | Lisp_Object last; |
| 2218 | |
| 2219 | data.thisseq = Fcar (XCAR (tail)); |
| 2220 | data.maps = maps; |
| 2221 | data.tail = tail; |
| 2222 | last = make_number (XINT (Flength (data.thisseq)) - 1); |
| 2223 | /* Does the current sequence end in the meta-prefix-char? */ |
| 2224 | data.is_metized = (XINT (last) >= 0 |
| 2225 | /* Don't metize the last char of PREFIX. */ |
| 2226 | && XINT (last) >= prefixlen |
| 2227 | && EQ (Faref (data.thisseq, last), meta_prefix_char)); |
| 2228 | |
| 2229 | /* Since we can't run lisp code, we can't scan autoloaded maps. */ |
| 2230 | if (CONSP (thismap)) |
| 2231 | map_keymap (thismap, accessible_keymaps_1, Qnil, &data, 0); |
| 2232 | } |
| 2233 | return maps; |
| 2234 | } |
| 2235 | Lisp_Object Qsingle_key_description, Qkey_description; |
| 2236 | |
| 2237 | /* This function cannot GC. */ |
| 2238 | |
| 2239 | DEFUN ("key-description", Fkey_description, Skey_description, 1, 2, 0, |
| 2240 | doc: /* Return a pretty description of key-sequence KEYS. |
| 2241 | Optional arg PREFIX is the sequence of keys leading up to KEYS. |
| 2242 | Control characters turn into "C-foo" sequences, meta into "M-foo", |
| 2243 | spaces are put between sequence elements, etc. */) |
| 2244 | (keys, prefix) |
| 2245 | Lisp_Object keys, prefix; |
| 2246 | { |
| 2247 | int len = 0; |
| 2248 | int i, i_byte; |
| 2249 | Lisp_Object *args; |
| 2250 | int size = XINT (Flength (keys)); |
| 2251 | Lisp_Object list; |
| 2252 | Lisp_Object sep = build_string (" "); |
| 2253 | Lisp_Object key; |
| 2254 | int add_meta = 0; |
| 2255 | |
| 2256 | if (!NILP (prefix)) |
| 2257 | size += XINT (Flength (prefix)); |
| 2258 | |
| 2259 | /* This has one extra element at the end that we don't pass to Fconcat. */ |
| 2260 | args = (Lisp_Object *) alloca (size * 4 * sizeof (Lisp_Object)); |
| 2261 | |
| 2262 | /* In effect, this computes |
| 2263 | (mapconcat 'single-key-description keys " ") |
| 2264 | but we shouldn't use mapconcat because it can do GC. */ |
| 2265 | |
| 2266 | next_list: |
| 2267 | if (!NILP (prefix)) |
| 2268 | list = prefix, prefix = Qnil; |
| 2269 | else if (!NILP (keys)) |
| 2270 | list = keys, keys = Qnil; |
| 2271 | else |
| 2272 | { |
| 2273 | if (add_meta) |
| 2274 | { |
| 2275 | args[len] = Fsingle_key_description (meta_prefix_char, Qnil); |
| 2276 | len += 2; |
| 2277 | } |
| 2278 | else if (len == 0) |
| 2279 | return empty_unibyte_string; |
| 2280 | return Fconcat (len - 1, args); |
| 2281 | } |
| 2282 | |
| 2283 | if (STRINGP (list)) |
| 2284 | size = SCHARS (list); |
| 2285 | else if (VECTORP (list)) |
| 2286 | size = XVECTOR (list)->size; |
| 2287 | else if (CONSP (list)) |
| 2288 | size = XINT (Flength (list)); |
| 2289 | else |
| 2290 | wrong_type_argument (Qarrayp, list); |
| 2291 | |
| 2292 | i = i_byte = 0; |
| 2293 | |
| 2294 | while (i < size) |
| 2295 | { |
| 2296 | if (STRINGP (list)) |
| 2297 | { |
| 2298 | int c; |
| 2299 | FETCH_STRING_CHAR_ADVANCE (c, list, i, i_byte); |
| 2300 | if (SINGLE_BYTE_CHAR_P (c) && (c & 0200)) |
| 2301 | c ^= 0200 | meta_modifier; |
| 2302 | XSETFASTINT (key, c); |
| 2303 | } |
| 2304 | else if (VECTORP (list)) |
| 2305 | { |
| 2306 | key = AREF (list, i++); |
| 2307 | } |
| 2308 | else |
| 2309 | { |
| 2310 | key = XCAR (list); |
| 2311 | list = XCDR (list); |
| 2312 | i++; |
| 2313 | } |
| 2314 | |
| 2315 | if (add_meta) |
| 2316 | { |
| 2317 | if (!INTEGERP (key) |
| 2318 | || EQ (key, meta_prefix_char) |
| 2319 | || (XINT (key) & meta_modifier)) |
| 2320 | { |
| 2321 | args[len++] = Fsingle_key_description (meta_prefix_char, Qnil); |
| 2322 | args[len++] = sep; |
| 2323 | if (EQ (key, meta_prefix_char)) |
| 2324 | continue; |
| 2325 | } |
| 2326 | else |
| 2327 | XSETINT (key, (XINT (key) | meta_modifier) & ~0x80); |
| 2328 | add_meta = 0; |
| 2329 | } |
| 2330 | else if (EQ (key, meta_prefix_char)) |
| 2331 | { |
| 2332 | add_meta = 1; |
| 2333 | continue; |
| 2334 | } |
| 2335 | args[len++] = Fsingle_key_description (key, Qnil); |
| 2336 | args[len++] = sep; |
| 2337 | } |
| 2338 | goto next_list; |
| 2339 | } |
| 2340 | |
| 2341 | |
| 2342 | char * |
| 2343 | push_key_description (c, p, force_multibyte) |
| 2344 | register unsigned int c; |
| 2345 | register char *p; |
| 2346 | int force_multibyte; |
| 2347 | { |
| 2348 | unsigned c2; |
| 2349 | |
| 2350 | /* Clear all the meaningless bits above the meta bit. */ |
| 2351 | c &= meta_modifier | ~ - meta_modifier; |
| 2352 | c2 = c & ~(alt_modifier | ctrl_modifier | hyper_modifier |
| 2353 | | meta_modifier | shift_modifier | super_modifier); |
| 2354 | |
| 2355 | if (! CHARACTERP (make_number (c2))) |
| 2356 | { |
| 2357 | /* KEY_DESCRIPTION_SIZE is large enough for this. */ |
| 2358 | p += sprintf (p, "[%d]", c); |
| 2359 | return p; |
| 2360 | } |
| 2361 | |
| 2362 | if (c & alt_modifier) |
| 2363 | { |
| 2364 | *p++ = 'A'; |
| 2365 | *p++ = '-'; |
| 2366 | c -= alt_modifier; |
| 2367 | } |
| 2368 | if ((c & ctrl_modifier) != 0 |
| 2369 | || (c2 < ' ' && c2 != 27 && c2 != '\t' && c2 != Ctl ('M'))) |
| 2370 | { |
| 2371 | *p++ = 'C'; |
| 2372 | *p++ = '-'; |
| 2373 | c &= ~ctrl_modifier; |
| 2374 | } |
| 2375 | if (c & hyper_modifier) |
| 2376 | { |
| 2377 | *p++ = 'H'; |
| 2378 | *p++ = '-'; |
| 2379 | c -= hyper_modifier; |
| 2380 | } |
| 2381 | if (c & meta_modifier) |
| 2382 | { |
| 2383 | *p++ = 'M'; |
| 2384 | *p++ = '-'; |
| 2385 | c -= meta_modifier; |
| 2386 | } |
| 2387 | if (c & shift_modifier) |
| 2388 | { |
| 2389 | *p++ = 'S'; |
| 2390 | *p++ = '-'; |
| 2391 | c -= shift_modifier; |
| 2392 | } |
| 2393 | if (c & super_modifier) |
| 2394 | { |
| 2395 | *p++ = 's'; |
| 2396 | *p++ = '-'; |
| 2397 | c -= super_modifier; |
| 2398 | } |
| 2399 | if (c < 040) |
| 2400 | { |
| 2401 | if (c == 033) |
| 2402 | { |
| 2403 | *p++ = 'E'; |
| 2404 | *p++ = 'S'; |
| 2405 | *p++ = 'C'; |
| 2406 | } |
| 2407 | else if (c == '\t') |
| 2408 | { |
| 2409 | *p++ = 'T'; |
| 2410 | *p++ = 'A'; |
| 2411 | *p++ = 'B'; |
| 2412 | } |
| 2413 | else if (c == Ctl ('M')) |
| 2414 | { |
| 2415 | *p++ = 'R'; |
| 2416 | *p++ = 'E'; |
| 2417 | *p++ = 'T'; |
| 2418 | } |
| 2419 | else |
| 2420 | { |
| 2421 | /* `C-' already added above. */ |
| 2422 | if (c > 0 && c <= Ctl ('Z')) |
| 2423 | *p++ = c + 0140; |
| 2424 | else |
| 2425 | *p++ = c + 0100; |
| 2426 | } |
| 2427 | } |
| 2428 | else if (c == 0177) |
| 2429 | { |
| 2430 | *p++ = 'D'; |
| 2431 | *p++ = 'E'; |
| 2432 | *p++ = 'L'; |
| 2433 | } |
| 2434 | else if (c == ' ') |
| 2435 | { |
| 2436 | *p++ = 'S'; |
| 2437 | *p++ = 'P'; |
| 2438 | *p++ = 'C'; |
| 2439 | } |
| 2440 | else if (c < 128 |
| 2441 | || (NILP (current_buffer->enable_multibyte_characters) |
| 2442 | && SINGLE_BYTE_CHAR_P (c) |
| 2443 | && !force_multibyte)) |
| 2444 | { |
| 2445 | *p++ = c; |
| 2446 | } |
| 2447 | else |
| 2448 | { |
| 2449 | /* Now we are sure that C is a valid character code. */ |
| 2450 | if (NILP (current_buffer->enable_multibyte_characters) |
| 2451 | && ! force_multibyte) |
| 2452 | *p++ = multibyte_char_to_unibyte (c, Qnil); |
| 2453 | else |
| 2454 | p += CHAR_STRING (c, (unsigned char *) p); |
| 2455 | } |
| 2456 | |
| 2457 | return p; |
| 2458 | } |
| 2459 | |
| 2460 | /* This function cannot GC. */ |
| 2461 | |
| 2462 | DEFUN ("single-key-description", Fsingle_key_description, |
| 2463 | Ssingle_key_description, 1, 2, 0, |
| 2464 | doc: /* Return a pretty description of command character KEY. |
| 2465 | Control characters turn into C-whatever, etc. |
| 2466 | Optional argument NO-ANGLES non-nil means don't put angle brackets |
| 2467 | around function keys and event symbols. */) |
| 2468 | (key, no_angles) |
| 2469 | Lisp_Object key, no_angles; |
| 2470 | { |
| 2471 | if (CONSP (key) && lucid_event_type_list_p (key)) |
| 2472 | key = Fevent_convert_list (key); |
| 2473 | |
| 2474 | key = EVENT_HEAD (key); |
| 2475 | |
| 2476 | if (INTEGERP (key)) /* Normal character */ |
| 2477 | { |
| 2478 | char tem[KEY_DESCRIPTION_SIZE]; |
| 2479 | |
| 2480 | *push_key_description (XUINT (key), tem, 1) = 0; |
| 2481 | return build_string (tem); |
| 2482 | } |
| 2483 | else if (SYMBOLP (key)) /* Function key or event-symbol */ |
| 2484 | { |
| 2485 | if (NILP (no_angles)) |
| 2486 | { |
| 2487 | char *buffer |
| 2488 | = (char *) alloca (SBYTES (SYMBOL_NAME (key)) + 5); |
| 2489 | sprintf (buffer, "<%s>", SDATA (SYMBOL_NAME (key))); |
| 2490 | return build_string (buffer); |
| 2491 | } |
| 2492 | else |
| 2493 | return Fsymbol_name (key); |
| 2494 | } |
| 2495 | else if (STRINGP (key)) /* Buffer names in the menubar. */ |
| 2496 | return Fcopy_sequence (key); |
| 2497 | else |
| 2498 | error ("KEY must be an integer, cons, symbol, or string"); |
| 2499 | return Qnil; |
| 2500 | } |
| 2501 | |
| 2502 | char * |
| 2503 | push_text_char_description (c, p) |
| 2504 | register unsigned int c; |
| 2505 | register char *p; |
| 2506 | { |
| 2507 | if (c >= 0200) |
| 2508 | { |
| 2509 | *p++ = 'M'; |
| 2510 | *p++ = '-'; |
| 2511 | c -= 0200; |
| 2512 | } |
| 2513 | if (c < 040) |
| 2514 | { |
| 2515 | *p++ = '^'; |
| 2516 | *p++ = c + 64; /* 'A' - 1 */ |
| 2517 | } |
| 2518 | else if (c == 0177) |
| 2519 | { |
| 2520 | *p++ = '^'; |
| 2521 | *p++ = '?'; |
| 2522 | } |
| 2523 | else |
| 2524 | *p++ = c; |
| 2525 | return p; |
| 2526 | } |
| 2527 | |
| 2528 | /* This function cannot GC. */ |
| 2529 | |
| 2530 | DEFUN ("text-char-description", Ftext_char_description, Stext_char_description, 1, 1, 0, |
| 2531 | doc: /* Return a pretty description of file-character CHARACTER. |
| 2532 | Control characters turn into "^char", etc. This differs from |
| 2533 | `single-key-description' which turns them into "C-char". |
| 2534 | Also, this function recognizes the 2**7 bit as the Meta character, |
| 2535 | whereas `single-key-description' uses the 2**27 bit for Meta. |
| 2536 | See Info node `(elisp)Describing Characters' for examples. */) |
| 2537 | (character) |
| 2538 | Lisp_Object character; |
| 2539 | { |
| 2540 | /* Currently MAX_MULTIBYTE_LENGTH is 4 (< 6). */ |
| 2541 | unsigned char str[6]; |
| 2542 | int c; |
| 2543 | |
| 2544 | CHECK_NUMBER (character); |
| 2545 | |
| 2546 | c = XINT (character); |
| 2547 | if (!ASCII_CHAR_P (c)) |
| 2548 | { |
| 2549 | int len = CHAR_STRING (c, str); |
| 2550 | |
| 2551 | return make_multibyte_string (str, 1, len); |
| 2552 | } |
| 2553 | |
| 2554 | *push_text_char_description (c & 0377, str) = 0; |
| 2555 | |
| 2556 | return build_string (str); |
| 2557 | } |
| 2558 | |
| 2559 | /* Return non-zero if SEQ contains only ASCII characters, perhaps with |
| 2560 | a meta bit. */ |
| 2561 | static int |
| 2562 | ascii_sequence_p (seq) |
| 2563 | Lisp_Object seq; |
| 2564 | { |
| 2565 | int i; |
| 2566 | int len = XINT (Flength (seq)); |
| 2567 | |
| 2568 | for (i = 0; i < len; i++) |
| 2569 | { |
| 2570 | Lisp_Object ii, elt; |
| 2571 | |
| 2572 | XSETFASTINT (ii, i); |
| 2573 | elt = Faref (seq, ii); |
| 2574 | |
| 2575 | if (!INTEGERP (elt) |
| 2576 | || (XUINT (elt) & ~CHAR_META) >= 0x80) |
| 2577 | return 0; |
| 2578 | } |
| 2579 | |
| 2580 | return 1; |
| 2581 | } |
| 2582 | |
| 2583 | \f |
| 2584 | /* where-is - finding a command in a set of keymaps. */ |
| 2585 | |
| 2586 | static Lisp_Object where_is_internal (); |
| 2587 | static void where_is_internal_1 P_ ((Lisp_Object key, Lisp_Object binding, |
| 2588 | Lisp_Object args, void *data)); |
| 2589 | |
| 2590 | /* Like Flookup_key, but uses a list of keymaps SHADOW instead of a single map. |
| 2591 | Returns the first non-nil binding found in any of those maps. */ |
| 2592 | |
| 2593 | static Lisp_Object |
| 2594 | shadow_lookup (shadow, key, flag) |
| 2595 | Lisp_Object shadow, key, flag; |
| 2596 | { |
| 2597 | Lisp_Object tail, value; |
| 2598 | |
| 2599 | for (tail = shadow; CONSP (tail); tail = XCDR (tail)) |
| 2600 | { |
| 2601 | value = Flookup_key (XCAR (tail), key, flag); |
| 2602 | if (NATNUMP (value)) |
| 2603 | { |
| 2604 | value = Flookup_key (XCAR (tail), |
| 2605 | Fsubstring (key, make_number (0), value), flag); |
| 2606 | if (!NILP (value)) |
| 2607 | return Qnil; |
| 2608 | } |
| 2609 | else if (!NILP (value)) |
| 2610 | return value; |
| 2611 | } |
| 2612 | return Qnil; |
| 2613 | } |
| 2614 | |
| 2615 | static Lisp_Object Vmouse_events; |
| 2616 | |
| 2617 | struct where_is_internal_data { |
| 2618 | Lisp_Object definition, noindirect, this, last; |
| 2619 | int last_is_meta; |
| 2620 | Lisp_Object sequences; |
| 2621 | }; |
| 2622 | |
| 2623 | /* This function can GC if Flookup_key autoloads any keymaps. */ |
| 2624 | |
| 2625 | static Lisp_Object |
| 2626 | where_is_internal (definition, keymaps, firstonly, noindirect, no_remap) |
| 2627 | Lisp_Object definition, keymaps; |
| 2628 | Lisp_Object firstonly, noindirect, no_remap; |
| 2629 | { |
| 2630 | Lisp_Object maps = Qnil; |
| 2631 | Lisp_Object found, sequences; |
| 2632 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; |
| 2633 | /* 1 means ignore all menu bindings entirely. */ |
| 2634 | int nomenus = !NILP (firstonly) && !EQ (firstonly, Qnon_ascii); |
| 2635 | |
| 2636 | found = keymaps; |
| 2637 | while (CONSP (found)) |
| 2638 | { |
| 2639 | maps = |
| 2640 | nconc2 (maps, |
| 2641 | Faccessible_keymaps (get_keymap (XCAR (found), 1, 0), Qnil)); |
| 2642 | found = XCDR (found); |
| 2643 | } |
| 2644 | |
| 2645 | GCPRO5 (definition, keymaps, maps, found, sequences); |
| 2646 | found = Qnil; |
| 2647 | sequences = Qnil; |
| 2648 | |
| 2649 | /* If this command is remapped, then it has no key bindings |
| 2650 | of its own. */ |
| 2651 | if (NILP (no_remap) |
| 2652 | && SYMBOLP (definition) |
| 2653 | && !NILP (Fcommand_remapping (definition, Qnil, keymaps))) |
| 2654 | RETURN_UNGCPRO (Qnil); |
| 2655 | |
| 2656 | for (; !NILP (maps); maps = Fcdr (maps)) |
| 2657 | { |
| 2658 | /* Key sequence to reach map, and the map that it reaches */ |
| 2659 | register Lisp_Object this, map, tem; |
| 2660 | struct where_is_internal_data data; |
| 2661 | |
| 2662 | /* In order to fold [META-PREFIX-CHAR CHAR] sequences into |
| 2663 | [M-CHAR] sequences, check if last character of the sequence |
| 2664 | is the meta-prefix char. */ |
| 2665 | Lisp_Object last; |
| 2666 | int last_is_meta; |
| 2667 | |
| 2668 | this = Fcar (Fcar (maps)); |
| 2669 | map = Fcdr (Fcar (maps)); |
| 2670 | last = make_number (XINT (Flength (this)) - 1); |
| 2671 | last_is_meta = (XINT (last) >= 0 |
| 2672 | && EQ (Faref (this, last), meta_prefix_char)); |
| 2673 | |
| 2674 | /* if (nomenus && !ascii_sequence_p (this)) */ |
| 2675 | if (nomenus && XINT (last) >= 0 |
| 2676 | && SYMBOLP (tem = Faref (this, make_number (0))) |
| 2677 | && !NILP (Fmemq (XCAR (parse_modifiers (tem)), Vmouse_events))) |
| 2678 | /* If no menu entries should be returned, skip over the |
| 2679 | keymaps bound to `menu-bar' and `tool-bar' and other |
| 2680 | non-ascii prefixes like `C-down-mouse-2'. */ |
| 2681 | continue; |
| 2682 | |
| 2683 | QUIT; |
| 2684 | |
| 2685 | data.definition = definition; |
| 2686 | data.noindirect = noindirect; |
| 2687 | data.this = this; |
| 2688 | data.last = last; |
| 2689 | data.last_is_meta = last_is_meta; |
| 2690 | data.sequences = Qnil; |
| 2691 | |
| 2692 | if (CONSP (map)) |
| 2693 | map_keymap (map, where_is_internal_1, Qnil, &data, 0); |
| 2694 | |
| 2695 | sequences = data.sequences; |
| 2696 | |
| 2697 | while (CONSP (sequences)) |
| 2698 | { |
| 2699 | Lisp_Object sequence, remapped, function; |
| 2700 | |
| 2701 | sequence = XCAR (sequences); |
| 2702 | sequences = XCDR (sequences); |
| 2703 | |
| 2704 | /* If the current sequence is a command remapping with |
| 2705 | format [remap COMMAND], find the key sequences |
| 2706 | which run COMMAND, and use those sequences instead. */ |
| 2707 | remapped = Qnil; |
| 2708 | if (NILP (no_remap) |
| 2709 | && VECTORP (sequence) && XVECTOR (sequence)->size == 2 |
| 2710 | && EQ (AREF (sequence, 0), Qremap) |
| 2711 | && (function = AREF (sequence, 1), SYMBOLP (function))) |
| 2712 | { |
| 2713 | Lisp_Object remapped1; |
| 2714 | |
| 2715 | remapped1 = where_is_internal (function, keymaps, firstonly, noindirect, Qt); |
| 2716 | if (CONSP (remapped1)) |
| 2717 | { |
| 2718 | /* Verify that this key binding actually maps to the |
| 2719 | remapped command (see below). */ |
| 2720 | if (!EQ (shadow_lookup (keymaps, XCAR (remapped1), Qnil), function)) |
| 2721 | continue; |
| 2722 | sequence = XCAR (remapped1); |
| 2723 | remapped = XCDR (remapped1); |
| 2724 | goto record_sequence; |
| 2725 | } |
| 2726 | } |
| 2727 | |
| 2728 | /* Verify that this key binding is not shadowed by another |
| 2729 | binding for the same key, before we say it exists. |
| 2730 | |
| 2731 | Mechanism: look for local definition of this key and if |
| 2732 | it is defined and does not match what we found then |
| 2733 | ignore this key. |
| 2734 | |
| 2735 | Either nil or number as value from Flookup_key |
| 2736 | means undefined. */ |
| 2737 | if (!EQ (shadow_lookup (keymaps, sequence, Qnil), definition)) |
| 2738 | continue; |
| 2739 | |
| 2740 | record_sequence: |
| 2741 | /* Don't annoy user with strings from a menu such as |
| 2742 | Select Paste. Change them all to "(any string)", |
| 2743 | so that there seems to be only one menu item |
| 2744 | to report. */ |
| 2745 | if (! NILP (sequence)) |
| 2746 | { |
| 2747 | Lisp_Object tem; |
| 2748 | tem = Faref (sequence, make_number (XVECTOR (sequence)->size - 1)); |
| 2749 | if (STRINGP (tem)) |
| 2750 | Faset (sequence, make_number (XVECTOR (sequence)->size - 1), |
| 2751 | build_string ("(any string)")); |
| 2752 | } |
| 2753 | |
| 2754 | /* It is a true unshadowed match. Record it, unless it's already |
| 2755 | been seen (as could happen when inheriting keymaps). */ |
| 2756 | if (NILP (Fmember (sequence, found))) |
| 2757 | found = Fcons (sequence, found); |
| 2758 | |
| 2759 | /* If firstonly is Qnon_ascii, then we can return the first |
| 2760 | binding we find. If firstonly is not Qnon_ascii but not |
| 2761 | nil, then we should return the first ascii-only binding |
| 2762 | we find. */ |
| 2763 | if (EQ (firstonly, Qnon_ascii)) |
| 2764 | RETURN_UNGCPRO (sequence); |
| 2765 | else if (!NILP (firstonly) && ascii_sequence_p (sequence)) |
| 2766 | RETURN_UNGCPRO (sequence); |
| 2767 | |
| 2768 | if (CONSP (remapped)) |
| 2769 | { |
| 2770 | sequence = XCAR (remapped); |
| 2771 | remapped = XCDR (remapped); |
| 2772 | goto record_sequence; |
| 2773 | } |
| 2774 | } |
| 2775 | } |
| 2776 | |
| 2777 | UNGCPRO; |
| 2778 | |
| 2779 | found = Fnreverse (found); |
| 2780 | |
| 2781 | /* firstonly may have been t, but we may have gone all the way through |
| 2782 | the keymaps without finding an all-ASCII key sequence. So just |
| 2783 | return the best we could find. */ |
| 2784 | if (!NILP (firstonly)) |
| 2785 | return Fcar (found); |
| 2786 | |
| 2787 | return found; |
| 2788 | } |
| 2789 | |
| 2790 | DEFUN ("where-is-internal", Fwhere_is_internal, Swhere_is_internal, 1, 5, 0, |
| 2791 | doc: /* Return list of keys that invoke DEFINITION. |
| 2792 | If KEYMAP is a keymap, search only KEYMAP and the global keymap. |
| 2793 | If KEYMAP is nil, search all the currently active keymaps. |
| 2794 | If KEYMAP is a list of keymaps, search only those keymaps. |
| 2795 | |
| 2796 | If optional 3rd arg FIRSTONLY is non-nil, return the first key sequence found, |
| 2797 | rather than a list of all possible key sequences. |
| 2798 | If FIRSTONLY is the symbol `non-ascii', return the first binding found, |
| 2799 | no matter what it is. |
| 2800 | If FIRSTONLY has another non-nil value, prefer sequences of ASCII characters |
| 2801 | \(or their meta variants) and entirely reject menu bindings. |
| 2802 | |
| 2803 | If optional 4th arg NOINDIRECT is non-nil, don't follow indirections |
| 2804 | to other keymaps or slots. This makes it possible to search for an |
| 2805 | indirect definition itself. |
| 2806 | |
| 2807 | If optional 5th arg NO-REMAP is non-nil, don't search for key sequences |
| 2808 | that invoke a command which is remapped to DEFINITION, but include the |
| 2809 | remapped command in the returned list. */) |
| 2810 | (definition, keymap, firstonly, noindirect, no_remap) |
| 2811 | Lisp_Object definition, keymap; |
| 2812 | Lisp_Object firstonly, noindirect, no_remap; |
| 2813 | { |
| 2814 | Lisp_Object sequences, keymaps; |
| 2815 | /* 1 means ignore all menu bindings entirely. */ |
| 2816 | int nomenus = !NILP (firstonly) && !EQ (firstonly, Qnon_ascii); |
| 2817 | Lisp_Object result; |
| 2818 | |
| 2819 | /* Find the relevant keymaps. */ |
| 2820 | if (CONSP (keymap) && KEYMAPP (XCAR (keymap))) |
| 2821 | keymaps = keymap; |
| 2822 | else if (!NILP (keymap)) |
| 2823 | keymaps = Fcons (keymap, Fcons (current_global_map, Qnil)); |
| 2824 | else |
| 2825 | keymaps = Fcurrent_active_maps (Qnil, Qnil); |
| 2826 | |
| 2827 | /* Only use caching for the menubar (i.e. called with (def nil t nil). |
| 2828 | We don't really need to check `keymap'. */ |
| 2829 | if (nomenus && NILP (noindirect) && NILP (keymap)) |
| 2830 | { |
| 2831 | Lisp_Object *defns; |
| 2832 | int i, j, n; |
| 2833 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; |
| 2834 | |
| 2835 | /* Check heuristic-consistency of the cache. */ |
| 2836 | if (NILP (Fequal (keymaps, where_is_cache_keymaps))) |
| 2837 | where_is_cache = Qnil; |
| 2838 | |
| 2839 | if (NILP (where_is_cache)) |
| 2840 | { |
| 2841 | /* We need to create the cache. */ |
| 2842 | Lisp_Object args[2]; |
| 2843 | where_is_cache = Fmake_hash_table (0, args); |
| 2844 | where_is_cache_keymaps = Qt; |
| 2845 | |
| 2846 | /* Fill in the cache. */ |
| 2847 | GCPRO5 (definition, keymaps, firstonly, noindirect, no_remap); |
| 2848 | where_is_internal (definition, keymaps, firstonly, noindirect, no_remap); |
| 2849 | UNGCPRO; |
| 2850 | |
| 2851 | where_is_cache_keymaps = keymaps; |
| 2852 | } |
| 2853 | |
| 2854 | /* We want to process definitions from the last to the first. |
| 2855 | Instead of consing, copy definitions to a vector and step |
| 2856 | over that vector. */ |
| 2857 | sequences = Fgethash (definition, where_is_cache, Qnil); |
| 2858 | n = XINT (Flength (sequences)); |
| 2859 | defns = (Lisp_Object *) alloca (n * sizeof *defns); |
| 2860 | for (i = 0; CONSP (sequences); sequences = XCDR (sequences)) |
| 2861 | defns[i++] = XCAR (sequences); |
| 2862 | |
| 2863 | /* Verify that the key bindings are not shadowed. Note that |
| 2864 | the following can GC. */ |
| 2865 | GCPRO2 (definition, keymaps); |
| 2866 | result = Qnil; |
| 2867 | j = -1; |
| 2868 | for (i = n - 1; i >= 0; --i) |
| 2869 | if (EQ (shadow_lookup (keymaps, defns[i], Qnil), definition)) |
| 2870 | { |
| 2871 | if (ascii_sequence_p (defns[i])) |
| 2872 | break; |
| 2873 | else if (j < 0) |
| 2874 | j = i; |
| 2875 | } |
| 2876 | |
| 2877 | result = i >= 0 ? defns[i] : (j >= 0 ? defns[j] : Qnil); |
| 2878 | UNGCPRO; |
| 2879 | } |
| 2880 | else |
| 2881 | { |
| 2882 | /* Kill the cache so that where_is_internal_1 doesn't think |
| 2883 | we're filling it up. */ |
| 2884 | where_is_cache = Qnil; |
| 2885 | result = where_is_internal (definition, keymaps, firstonly, noindirect, no_remap); |
| 2886 | } |
| 2887 | |
| 2888 | return result; |
| 2889 | } |
| 2890 | |
| 2891 | /* This function can GC because get_keyelt can. */ |
| 2892 | |
| 2893 | static void |
| 2894 | where_is_internal_1 (key, binding, args, data) |
| 2895 | Lisp_Object key, binding, args; |
| 2896 | void *data; |
| 2897 | { |
| 2898 | struct where_is_internal_data *d = data; /* Cast! */ |
| 2899 | Lisp_Object definition = d->definition; |
| 2900 | Lisp_Object noindirect = d->noindirect; |
| 2901 | Lisp_Object this = d->this; |
| 2902 | Lisp_Object last = d->last; |
| 2903 | int last_is_meta = d->last_is_meta; |
| 2904 | Lisp_Object sequence; |
| 2905 | |
| 2906 | /* Search through indirections unless that's not wanted. */ |
| 2907 | if (NILP (noindirect)) |
| 2908 | binding = get_keyelt (binding, 0); |
| 2909 | |
| 2910 | /* End this iteration if this element does not match |
| 2911 | the target. */ |
| 2912 | |
| 2913 | if (!(!NILP (where_is_cache) /* everything "matches" during cache-fill. */ |
| 2914 | || EQ (binding, definition) |
| 2915 | || (CONSP (definition) && !NILP (Fequal (binding, definition))))) |
| 2916 | /* Doesn't match. */ |
| 2917 | return; |
| 2918 | |
| 2919 | /* We have found a match. Construct the key sequence where we found it. */ |
| 2920 | if (INTEGERP (key) && last_is_meta) |
| 2921 | { |
| 2922 | sequence = Fcopy_sequence (this); |
| 2923 | Faset (sequence, last, make_number (XINT (key) | meta_modifier)); |
| 2924 | } |
| 2925 | else |
| 2926 | { |
| 2927 | if (CONSP (key)) |
| 2928 | key = Fcons (XCAR (key), XCDR (key)); |
| 2929 | sequence = append_key (this, key); |
| 2930 | } |
| 2931 | |
| 2932 | if (!NILP (where_is_cache)) |
| 2933 | { |
| 2934 | Lisp_Object sequences = Fgethash (binding, where_is_cache, Qnil); |
| 2935 | Fputhash (binding, Fcons (sequence, sequences), where_is_cache); |
| 2936 | } |
| 2937 | else |
| 2938 | d->sequences = Fcons (sequence, d->sequences); |
| 2939 | } |
| 2940 | \f |
| 2941 | /* describe-bindings - summarizing all the bindings in a set of keymaps. */ |
| 2942 | |
| 2943 | DEFUN ("describe-buffer-bindings", Fdescribe_buffer_bindings, Sdescribe_buffer_bindings, 1, 3, 0, |
| 2944 | doc: /* Insert the list of all defined keys and their definitions. |
| 2945 | The list is inserted in the current buffer, while the bindings are |
| 2946 | looked up in BUFFER. |
| 2947 | The optional argument PREFIX, if non-nil, should be a key sequence; |
| 2948 | then we display only bindings that start with that prefix. |
| 2949 | The optional argument MENUS, if non-nil, says to mention menu bindings. |
| 2950 | \(Ordinarily these are omitted from the output.) */) |
| 2951 | (buffer, prefix, menus) |
| 2952 | Lisp_Object buffer, prefix, menus; |
| 2953 | { |
| 2954 | Lisp_Object outbuf, shadow; |
| 2955 | int nomenu = NILP (menus); |
| 2956 | register Lisp_Object start1; |
| 2957 | struct gcpro gcpro1; |
| 2958 | |
| 2959 | char *alternate_heading |
| 2960 | = "\ |
| 2961 | Keyboard translations:\n\n\ |
| 2962 | You type Translation\n\ |
| 2963 | -------- -----------\n"; |
| 2964 | |
| 2965 | CHECK_BUFFER (buffer); |
| 2966 | |
| 2967 | shadow = Qnil; |
| 2968 | GCPRO1 (shadow); |
| 2969 | |
| 2970 | outbuf = Fcurrent_buffer (); |
| 2971 | |
| 2972 | /* Report on alternates for keys. */ |
| 2973 | if (STRINGP (current_kboard->Vkeyboard_translate_table) && !NILP (prefix)) |
| 2974 | { |
| 2975 | int c; |
| 2976 | const unsigned char *translate = SDATA (current_kboard->Vkeyboard_translate_table); |
| 2977 | int translate_len = SCHARS (current_kboard->Vkeyboard_translate_table); |
| 2978 | |
| 2979 | for (c = 0; c < translate_len; c++) |
| 2980 | if (translate[c] != c) |
| 2981 | { |
| 2982 | char buf[KEY_DESCRIPTION_SIZE]; |
| 2983 | char *bufend; |
| 2984 | |
| 2985 | if (alternate_heading) |
| 2986 | { |
| 2987 | insert_string (alternate_heading); |
| 2988 | alternate_heading = 0; |
| 2989 | } |
| 2990 | |
| 2991 | bufend = push_key_description (translate[c], buf, 1); |
| 2992 | insert (buf, bufend - buf); |
| 2993 | Findent_to (make_number (16), make_number (1)); |
| 2994 | bufend = push_key_description (c, buf, 1); |
| 2995 | insert (buf, bufend - buf); |
| 2996 | |
| 2997 | insert ("\n", 1); |
| 2998 | |
| 2999 | /* Insert calls signal_after_change which may GC. */ |
| 3000 | translate = SDATA (current_kboard->Vkeyboard_translate_table); |
| 3001 | } |
| 3002 | |
| 3003 | insert ("\n", 1); |
| 3004 | } |
| 3005 | |
| 3006 | if (!NILP (Vkey_translation_map)) |
| 3007 | describe_map_tree (Vkey_translation_map, 0, Qnil, prefix, |
| 3008 | "Key translations", nomenu, 1, 0, 0); |
| 3009 | |
| 3010 | |
| 3011 | /* Print the (major mode) local map. */ |
| 3012 | start1 = Qnil; |
| 3013 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) |
| 3014 | start1 = current_kboard->Voverriding_terminal_local_map; |
| 3015 | else if (!NILP (Voverriding_local_map)) |
| 3016 | start1 = Voverriding_local_map; |
| 3017 | |
| 3018 | if (!NILP (start1)) |
| 3019 | { |
| 3020 | describe_map_tree (start1, 1, shadow, prefix, |
| 3021 | "\f\nOverriding Bindings", nomenu, 0, 0, 0); |
| 3022 | shadow = Fcons (start1, shadow); |
| 3023 | } |
| 3024 | else |
| 3025 | { |
| 3026 | /* Print the minor mode and major mode keymaps. */ |
| 3027 | int i, nmaps; |
| 3028 | Lisp_Object *modes, *maps; |
| 3029 | |
| 3030 | /* Temporarily switch to `buffer', so that we can get that buffer's |
| 3031 | minor modes correctly. */ |
| 3032 | Fset_buffer (buffer); |
| 3033 | |
| 3034 | nmaps = current_minor_maps (&modes, &maps); |
| 3035 | Fset_buffer (outbuf); |
| 3036 | |
| 3037 | start1 = get_local_map (BUF_PT (XBUFFER (buffer)), |
| 3038 | XBUFFER (buffer), Qkeymap); |
| 3039 | if (!NILP (start1)) |
| 3040 | { |
| 3041 | describe_map_tree (start1, 1, shadow, prefix, |
| 3042 | "\f\n`keymap' Property Bindings", nomenu, |
| 3043 | 0, 0, 0); |
| 3044 | shadow = Fcons (start1, shadow); |
| 3045 | } |
| 3046 | |
| 3047 | /* Print the minor mode maps. */ |
| 3048 | for (i = 0; i < nmaps; i++) |
| 3049 | { |
| 3050 | /* The title for a minor mode keymap |
| 3051 | is constructed at run time. |
| 3052 | We let describe_map_tree do the actual insertion |
| 3053 | because it takes care of other features when doing so. */ |
| 3054 | char *title, *p; |
| 3055 | |
| 3056 | if (!SYMBOLP (modes[i])) |
| 3057 | abort(); |
| 3058 | |
| 3059 | p = title = (char *) alloca (42 + SCHARS (SYMBOL_NAME (modes[i]))); |
| 3060 | *p++ = '\f'; |
| 3061 | *p++ = '\n'; |
| 3062 | *p++ = '`'; |
| 3063 | bcopy (SDATA (SYMBOL_NAME (modes[i])), p, |
| 3064 | SCHARS (SYMBOL_NAME (modes[i]))); |
| 3065 | p += SCHARS (SYMBOL_NAME (modes[i])); |
| 3066 | *p++ = '\''; |
| 3067 | bcopy (" Minor Mode Bindings", p, sizeof (" Minor Mode Bindings") - 1); |
| 3068 | p += sizeof (" Minor Mode Bindings") - 1; |
| 3069 | *p = 0; |
| 3070 | |
| 3071 | describe_map_tree (maps[i], 1, shadow, prefix, |
| 3072 | title, nomenu, 0, 0, 0); |
| 3073 | shadow = Fcons (maps[i], shadow); |
| 3074 | } |
| 3075 | |
| 3076 | start1 = get_local_map (BUF_PT (XBUFFER (buffer)), |
| 3077 | XBUFFER (buffer), Qlocal_map); |
| 3078 | if (!NILP (start1)) |
| 3079 | { |
| 3080 | if (EQ (start1, XBUFFER (buffer)->keymap)) |
| 3081 | describe_map_tree (start1, 1, shadow, prefix, |
| 3082 | "\f\nMajor Mode Bindings", nomenu, 0, 0, 0); |
| 3083 | else |
| 3084 | describe_map_tree (start1, 1, shadow, prefix, |
| 3085 | "\f\n`local-map' Property Bindings", |
| 3086 | nomenu, 0, 0, 0); |
| 3087 | |
| 3088 | shadow = Fcons (start1, shadow); |
| 3089 | } |
| 3090 | } |
| 3091 | |
| 3092 | describe_map_tree (current_global_map, 1, shadow, prefix, |
| 3093 | "\f\nGlobal Bindings", nomenu, 0, 1, 0); |
| 3094 | |
| 3095 | /* Print the function-key-map translations under this prefix. */ |
| 3096 | if (!NILP (current_kboard->Vlocal_function_key_map)) |
| 3097 | describe_map_tree (current_kboard->Vlocal_function_key_map, 0, Qnil, prefix, |
| 3098 | "\f\nFunction key map translations", nomenu, 1, 0, 0); |
| 3099 | |
| 3100 | /* Print the input-decode-map translations under this prefix. */ |
| 3101 | if (!NILP (current_kboard->Vinput_decode_map)) |
| 3102 | describe_map_tree (current_kboard->Vinput_decode_map, 0, Qnil, prefix, |
| 3103 | "\f\nInput decoding map translations", nomenu, 1, 0, 0); |
| 3104 | |
| 3105 | UNGCPRO; |
| 3106 | return Qnil; |
| 3107 | } |
| 3108 | |
| 3109 | /* Insert a description of the key bindings in STARTMAP, |
| 3110 | followed by those of all maps reachable through STARTMAP. |
| 3111 | If PARTIAL is nonzero, omit certain "uninteresting" commands |
| 3112 | (such as `undefined'). |
| 3113 | If SHADOW is non-nil, it is a list of maps; |
| 3114 | don't mention keys which would be shadowed by any of them. |
| 3115 | PREFIX, if non-nil, says mention only keys that start with PREFIX. |
| 3116 | TITLE, if not 0, is a string to insert at the beginning. |
| 3117 | TITLE should not end with a colon or a newline; we supply that. |
| 3118 | If NOMENU is not 0, then omit menu-bar commands. |
| 3119 | |
| 3120 | If TRANSL is nonzero, the definitions are actually key translations |
| 3121 | so print strings and vectors differently. |
| 3122 | |
| 3123 | If ALWAYS_TITLE is nonzero, print the title even if there are no maps |
| 3124 | to look through. |
| 3125 | |
| 3126 | If MENTION_SHADOW is nonzero, then when something is shadowed by SHADOW, |
| 3127 | don't omit it; instead, mention it but say it is shadowed. */ |
| 3128 | |
| 3129 | void |
| 3130 | describe_map_tree (startmap, partial, shadow, prefix, title, nomenu, transl, |
| 3131 | always_title, mention_shadow) |
| 3132 | Lisp_Object startmap, shadow, prefix; |
| 3133 | int partial; |
| 3134 | char *title; |
| 3135 | int nomenu; |
| 3136 | int transl; |
| 3137 | int always_title; |
| 3138 | int mention_shadow; |
| 3139 | { |
| 3140 | Lisp_Object maps, orig_maps, seen, sub_shadows; |
| 3141 | struct gcpro gcpro1, gcpro2, gcpro3; |
| 3142 | int something = 0; |
| 3143 | char *key_heading |
| 3144 | = "\ |
| 3145 | key binding\n\ |
| 3146 | --- -------\n"; |
| 3147 | |
| 3148 | orig_maps = maps = Faccessible_keymaps (startmap, prefix); |
| 3149 | seen = Qnil; |
| 3150 | sub_shadows = Qnil; |
| 3151 | GCPRO3 (maps, seen, sub_shadows); |
| 3152 | |
| 3153 | if (nomenu) |
| 3154 | { |
| 3155 | Lisp_Object list; |
| 3156 | |
| 3157 | /* Delete from MAPS each element that is for the menu bar. */ |
| 3158 | for (list = maps; !NILP (list); list = XCDR (list)) |
| 3159 | { |
| 3160 | Lisp_Object elt, prefix, tem; |
| 3161 | |
| 3162 | elt = Fcar (list); |
| 3163 | prefix = Fcar (elt); |
| 3164 | if (XVECTOR (prefix)->size >= 1) |
| 3165 | { |
| 3166 | tem = Faref (prefix, make_number (0)); |
| 3167 | if (EQ (tem, Qmenu_bar)) |
| 3168 | maps = Fdelq (elt, maps); |
| 3169 | } |
| 3170 | } |
| 3171 | } |
| 3172 | |
| 3173 | if (!NILP (maps) || always_title) |
| 3174 | { |
| 3175 | if (title) |
| 3176 | { |
| 3177 | insert_string (title); |
| 3178 | if (!NILP (prefix)) |
| 3179 | { |
| 3180 | insert_string (" Starting With "); |
| 3181 | insert1 (Fkey_description (prefix, Qnil)); |
| 3182 | } |
| 3183 | insert_string (":\n"); |
| 3184 | } |
| 3185 | insert_string (key_heading); |
| 3186 | something = 1; |
| 3187 | } |
| 3188 | |
| 3189 | for (; !NILP (maps); maps = Fcdr (maps)) |
| 3190 | { |
| 3191 | register Lisp_Object elt, prefix, tail; |
| 3192 | |
| 3193 | elt = Fcar (maps); |
| 3194 | prefix = Fcar (elt); |
| 3195 | |
| 3196 | sub_shadows = Qnil; |
| 3197 | |
| 3198 | for (tail = shadow; CONSP (tail); tail = XCDR (tail)) |
| 3199 | { |
| 3200 | Lisp_Object shmap; |
| 3201 | |
| 3202 | shmap = XCAR (tail); |
| 3203 | |
| 3204 | /* If the sequence by which we reach this keymap is zero-length, |
| 3205 | then the shadow map for this keymap is just SHADOW. */ |
| 3206 | if ((STRINGP (prefix) && SCHARS (prefix) == 0) |
| 3207 | || (VECTORP (prefix) && XVECTOR (prefix)->size == 0)) |
| 3208 | ; |
| 3209 | /* If the sequence by which we reach this keymap actually has |
| 3210 | some elements, then the sequence's definition in SHADOW is |
| 3211 | what we should use. */ |
| 3212 | else |
| 3213 | { |
| 3214 | shmap = Flookup_key (shmap, Fcar (elt), Qt); |
| 3215 | if (INTEGERP (shmap)) |
| 3216 | shmap = Qnil; |
| 3217 | } |
| 3218 | |
| 3219 | /* If shmap is not nil and not a keymap, |
| 3220 | it completely shadows this map, so don't |
| 3221 | describe this map at all. */ |
| 3222 | if (!NILP (shmap) && !KEYMAPP (shmap)) |
| 3223 | goto skip; |
| 3224 | |
| 3225 | if (!NILP (shmap)) |
| 3226 | sub_shadows = Fcons (shmap, sub_shadows); |
| 3227 | } |
| 3228 | |
| 3229 | /* Maps we have already listed in this loop shadow this map. */ |
| 3230 | for (tail = orig_maps; !EQ (tail, maps); tail = XCDR (tail)) |
| 3231 | { |
| 3232 | Lisp_Object tem; |
| 3233 | tem = Fequal (Fcar (XCAR (tail)), prefix); |
| 3234 | if (!NILP (tem)) |
| 3235 | sub_shadows = Fcons (XCDR (XCAR (tail)), sub_shadows); |
| 3236 | } |
| 3237 | |
| 3238 | describe_map (Fcdr (elt), prefix, |
| 3239 | transl ? describe_translation : describe_command, |
| 3240 | partial, sub_shadows, &seen, nomenu, mention_shadow); |
| 3241 | |
| 3242 | skip: ; |
| 3243 | } |
| 3244 | |
| 3245 | if (something) |
| 3246 | insert_string ("\n"); |
| 3247 | |
| 3248 | UNGCPRO; |
| 3249 | } |
| 3250 | |
| 3251 | static int previous_description_column; |
| 3252 | |
| 3253 | static void |
| 3254 | describe_command (definition, args) |
| 3255 | Lisp_Object definition, args; |
| 3256 | { |
| 3257 | register Lisp_Object tem1; |
| 3258 | int column = (int) current_column (); /* iftc */ |
| 3259 | int description_column; |
| 3260 | |
| 3261 | /* If column 16 is no good, go to col 32; |
| 3262 | but don't push beyond that--go to next line instead. */ |
| 3263 | if (column > 30) |
| 3264 | { |
| 3265 | insert_char ('\n'); |
| 3266 | description_column = 32; |
| 3267 | } |
| 3268 | else if (column > 14 || (column > 10 && previous_description_column == 32)) |
| 3269 | description_column = 32; |
| 3270 | else |
| 3271 | description_column = 16; |
| 3272 | |
| 3273 | Findent_to (make_number (description_column), make_number (1)); |
| 3274 | previous_description_column = description_column; |
| 3275 | |
| 3276 | if (SYMBOLP (definition)) |
| 3277 | { |
| 3278 | tem1 = SYMBOL_NAME (definition); |
| 3279 | insert1 (tem1); |
| 3280 | insert_string ("\n"); |
| 3281 | } |
| 3282 | else if (STRINGP (definition) || VECTORP (definition)) |
| 3283 | insert_string ("Keyboard Macro\n"); |
| 3284 | else if (KEYMAPP (definition)) |
| 3285 | insert_string ("Prefix Command\n"); |
| 3286 | else |
| 3287 | insert_string ("??\n"); |
| 3288 | } |
| 3289 | |
| 3290 | static void |
| 3291 | describe_translation (definition, args) |
| 3292 | Lisp_Object definition, args; |
| 3293 | { |
| 3294 | register Lisp_Object tem1; |
| 3295 | |
| 3296 | Findent_to (make_number (16), make_number (1)); |
| 3297 | |
| 3298 | if (SYMBOLP (definition)) |
| 3299 | { |
| 3300 | tem1 = SYMBOL_NAME (definition); |
| 3301 | insert1 (tem1); |
| 3302 | insert_string ("\n"); |
| 3303 | } |
| 3304 | else if (STRINGP (definition) || VECTORP (definition)) |
| 3305 | { |
| 3306 | insert1 (Fkey_description (definition, Qnil)); |
| 3307 | insert_string ("\n"); |
| 3308 | } |
| 3309 | else if (KEYMAPP (definition)) |
| 3310 | insert_string ("Prefix Command\n"); |
| 3311 | else |
| 3312 | insert_string ("??\n"); |
| 3313 | } |
| 3314 | |
| 3315 | /* describe_map puts all the usable elements of a sparse keymap |
| 3316 | into an array of `struct describe_map_elt', |
| 3317 | then sorts them by the events. */ |
| 3318 | |
| 3319 | struct describe_map_elt { Lisp_Object event; Lisp_Object definition; int shadowed; }; |
| 3320 | |
| 3321 | /* qsort comparison function for sorting `struct describe_map_elt' by |
| 3322 | the event field. */ |
| 3323 | |
| 3324 | static int |
| 3325 | describe_map_compare (aa, bb) |
| 3326 | const void *aa, *bb; |
| 3327 | { |
| 3328 | const struct describe_map_elt *a = aa, *b = bb; |
| 3329 | if (INTEGERP (a->event) && INTEGERP (b->event)) |
| 3330 | return ((XINT (a->event) > XINT (b->event)) |
| 3331 | - (XINT (a->event) < XINT (b->event))); |
| 3332 | if (!INTEGERP (a->event) && INTEGERP (b->event)) |
| 3333 | return 1; |
| 3334 | if (INTEGERP (a->event) && !INTEGERP (b->event)) |
| 3335 | return -1; |
| 3336 | if (SYMBOLP (a->event) && SYMBOLP (b->event)) |
| 3337 | return (!NILP (Fstring_lessp (a->event, b->event)) ? -1 |
| 3338 | : !NILP (Fstring_lessp (b->event, a->event)) ? 1 |
| 3339 | : 0); |
| 3340 | return 0; |
| 3341 | } |
| 3342 | |
| 3343 | /* Describe the contents of map MAP, assuming that this map itself is |
| 3344 | reached by the sequence of prefix keys PREFIX (a string or vector). |
| 3345 | PARTIAL, SHADOW, NOMENU are as in `describe_map_tree' above. */ |
| 3346 | |
| 3347 | static void |
| 3348 | describe_map (map, prefix, elt_describer, partial, shadow, |
| 3349 | seen, nomenu, mention_shadow) |
| 3350 | register Lisp_Object map; |
| 3351 | Lisp_Object prefix; |
| 3352 | void (*elt_describer) P_ ((Lisp_Object, Lisp_Object)); |
| 3353 | int partial; |
| 3354 | Lisp_Object shadow; |
| 3355 | Lisp_Object *seen; |
| 3356 | int nomenu; |
| 3357 | int mention_shadow; |
| 3358 | { |
| 3359 | Lisp_Object tail, definition, event; |
| 3360 | Lisp_Object tem; |
| 3361 | Lisp_Object suppress; |
| 3362 | Lisp_Object kludge; |
| 3363 | int first = 1; |
| 3364 | struct gcpro gcpro1, gcpro2, gcpro3; |
| 3365 | |
| 3366 | /* These accumulate the values from sparse keymap bindings, |
| 3367 | so we can sort them and handle them in order. */ |
| 3368 | int length_needed = 0; |
| 3369 | struct describe_map_elt *vect; |
| 3370 | int slots_used = 0; |
| 3371 | int i; |
| 3372 | |
| 3373 | suppress = Qnil; |
| 3374 | |
| 3375 | if (partial) |
| 3376 | suppress = intern ("suppress-keymap"); |
| 3377 | |
| 3378 | /* This vector gets used to present single keys to Flookup_key. Since |
| 3379 | that is done once per keymap element, we don't want to cons up a |
| 3380 | fresh vector every time. */ |
| 3381 | kludge = Fmake_vector (make_number (1), Qnil); |
| 3382 | definition = Qnil; |
| 3383 | |
| 3384 | for (tail = map; CONSP (tail); tail = XCDR (tail)) |
| 3385 | length_needed++; |
| 3386 | |
| 3387 | vect = ((struct describe_map_elt *) |
| 3388 | alloca (sizeof (struct describe_map_elt) * length_needed)); |
| 3389 | |
| 3390 | GCPRO3 (prefix, definition, kludge); |
| 3391 | |
| 3392 | for (tail = map; CONSP (tail); tail = XCDR (tail)) |
| 3393 | { |
| 3394 | QUIT; |
| 3395 | |
| 3396 | if (VECTORP (XCAR (tail)) |
| 3397 | || CHAR_TABLE_P (XCAR (tail))) |
| 3398 | describe_vector (XCAR (tail), |
| 3399 | prefix, Qnil, elt_describer, partial, shadow, map, |
| 3400 | (int *)0, 0, 1, mention_shadow); |
| 3401 | else if (CONSP (XCAR (tail))) |
| 3402 | { |
| 3403 | int this_shadowed = 0; |
| 3404 | |
| 3405 | event = XCAR (XCAR (tail)); |
| 3406 | |
| 3407 | /* Ignore bindings whose "prefix" are not really valid events. |
| 3408 | (We get these in the frames and buffers menu.) */ |
| 3409 | if (!(SYMBOLP (event) || INTEGERP (event))) |
| 3410 | continue; |
| 3411 | |
| 3412 | if (nomenu && EQ (event, Qmenu_bar)) |
| 3413 | continue; |
| 3414 | |
| 3415 | definition = get_keyelt (XCDR (XCAR (tail)), 0); |
| 3416 | |
| 3417 | /* Don't show undefined commands or suppressed commands. */ |
| 3418 | if (NILP (definition)) continue; |
| 3419 | if (SYMBOLP (definition) && partial) |
| 3420 | { |
| 3421 | tem = Fget (definition, suppress); |
| 3422 | if (!NILP (tem)) |
| 3423 | continue; |
| 3424 | } |
| 3425 | |
| 3426 | /* Don't show a command that isn't really visible |
| 3427 | because a local definition of the same key shadows it. */ |
| 3428 | |
| 3429 | ASET (kludge, 0, event); |
| 3430 | if (!NILP (shadow)) |
| 3431 | { |
| 3432 | tem = shadow_lookup (shadow, kludge, Qt); |
| 3433 | if (!NILP (tem)) |
| 3434 | { |
| 3435 | /* If both bindings are keymaps, this key is a prefix key, |
| 3436 | so don't say it is shadowed. */ |
| 3437 | if (KEYMAPP (definition) && KEYMAPP (tem)) |
| 3438 | ; |
| 3439 | /* Avoid generating duplicate entries if the |
| 3440 | shadowed binding has the same definition. */ |
| 3441 | else if (mention_shadow && !EQ (tem, definition)) |
| 3442 | this_shadowed = 1; |
| 3443 | else |
| 3444 | continue; |
| 3445 | } |
| 3446 | } |
| 3447 | |
| 3448 | tem = Flookup_key (map, kludge, Qt); |
| 3449 | if (!EQ (tem, definition)) continue; |
| 3450 | |
| 3451 | vect[slots_used].event = event; |
| 3452 | vect[slots_used].definition = definition; |
| 3453 | vect[slots_used].shadowed = this_shadowed; |
| 3454 | slots_used++; |
| 3455 | } |
| 3456 | else if (EQ (XCAR (tail), Qkeymap)) |
| 3457 | { |
| 3458 | /* The same keymap might be in the structure twice, if we're |
| 3459 | using an inherited keymap. So skip anything we've already |
| 3460 | encountered. */ |
| 3461 | tem = Fassq (tail, *seen); |
| 3462 | if (CONSP (tem) && !NILP (Fequal (XCAR (tem), prefix))) |
| 3463 | break; |
| 3464 | *seen = Fcons (Fcons (tail, prefix), *seen); |
| 3465 | } |
| 3466 | } |
| 3467 | |
| 3468 | /* If we found some sparse map events, sort them. */ |
| 3469 | |
| 3470 | qsort (vect, slots_used, sizeof (struct describe_map_elt), |
| 3471 | describe_map_compare); |
| 3472 | |
| 3473 | /* Now output them in sorted order. */ |
| 3474 | |
| 3475 | for (i = 0; i < slots_used; i++) |
| 3476 | { |
| 3477 | Lisp_Object start, end; |
| 3478 | |
| 3479 | if (first) |
| 3480 | { |
| 3481 | previous_description_column = 0; |
| 3482 | insert ("\n", 1); |
| 3483 | first = 0; |
| 3484 | } |
| 3485 | |
| 3486 | ASET (kludge, 0, vect[i].event); |
| 3487 | start = vect[i].event; |
| 3488 | end = start; |
| 3489 | |
| 3490 | definition = vect[i].definition; |
| 3491 | |
| 3492 | /* Find consecutive chars that are identically defined. */ |
| 3493 | if (INTEGERP (vect[i].event)) |
| 3494 | { |
| 3495 | while (i + 1 < slots_used |
| 3496 | && EQ (vect[i+1].event, make_number (XINT (vect[i].event) + 1)) |
| 3497 | && !NILP (Fequal (vect[i + 1].definition, definition)) |
| 3498 | && vect[i].shadowed == vect[i + 1].shadowed) |
| 3499 | i++; |
| 3500 | end = vect[i].event; |
| 3501 | } |
| 3502 | |
| 3503 | /* Now START .. END is the range to describe next. */ |
| 3504 | |
| 3505 | /* Insert the string to describe the event START. */ |
| 3506 | insert1 (Fkey_description (kludge, prefix)); |
| 3507 | |
| 3508 | if (!EQ (start, end)) |
| 3509 | { |
| 3510 | insert (" .. ", 4); |
| 3511 | |
| 3512 | ASET (kludge, 0, end); |
| 3513 | /* Insert the string to describe the character END. */ |
| 3514 | insert1 (Fkey_description (kludge, prefix)); |
| 3515 | } |
| 3516 | |
| 3517 | /* Print a description of the definition of this character. |
| 3518 | elt_describer will take care of spacing out far enough |
| 3519 | for alignment purposes. */ |
| 3520 | (*elt_describer) (vect[i].definition, Qnil); |
| 3521 | |
| 3522 | if (vect[i].shadowed) |
| 3523 | { |
| 3524 | SET_PT (PT - 1); |
| 3525 | insert_string ("\n (that binding is currently shadowed by another mode)"); |
| 3526 | SET_PT (PT + 1); |
| 3527 | } |
| 3528 | } |
| 3529 | |
| 3530 | UNGCPRO; |
| 3531 | } |
| 3532 | |
| 3533 | static void |
| 3534 | describe_vector_princ (elt, fun) |
| 3535 | Lisp_Object elt, fun; |
| 3536 | { |
| 3537 | Findent_to (make_number (16), make_number (1)); |
| 3538 | call1 (fun, elt); |
| 3539 | Fterpri (Qnil); |
| 3540 | } |
| 3541 | |
| 3542 | DEFUN ("describe-vector", Fdescribe_vector, Sdescribe_vector, 1, 2, 0, |
| 3543 | doc: /* Insert a description of contents of VECTOR. |
| 3544 | This is text showing the elements of vector matched against indices. |
| 3545 | DESCRIBER is the output function used; nil means use `princ'. */) |
| 3546 | (vector, describer) |
| 3547 | Lisp_Object vector, describer; |
| 3548 | { |
| 3549 | int count = SPECPDL_INDEX (); |
| 3550 | if (NILP (describer)) |
| 3551 | describer = intern ("princ"); |
| 3552 | specbind (Qstandard_output, Fcurrent_buffer ()); |
| 3553 | CHECK_VECTOR_OR_CHAR_TABLE (vector); |
| 3554 | describe_vector (vector, Qnil, describer, describe_vector_princ, 0, |
| 3555 | Qnil, Qnil, (int *)0, 0, 0, 0); |
| 3556 | |
| 3557 | return unbind_to (count, Qnil); |
| 3558 | } |
| 3559 | |
| 3560 | /* Insert in the current buffer a description of the contents of VECTOR. |
| 3561 | We call ELT_DESCRIBER to insert the description of one value found |
| 3562 | in VECTOR. |
| 3563 | |
| 3564 | ELT_PREFIX describes what "comes before" the keys or indices defined |
| 3565 | by this vector. This is a human-readable string whose size |
| 3566 | is not necessarily related to the situation. |
| 3567 | |
| 3568 | If the vector is in a keymap, ELT_PREFIX is a prefix key which |
| 3569 | leads to this keymap. |
| 3570 | |
| 3571 | If the vector is a chartable, ELT_PREFIX is the vector |
| 3572 | of bytes that lead to the character set or portion of a character |
| 3573 | set described by this chartable. |
| 3574 | |
| 3575 | If PARTIAL is nonzero, it means do not mention suppressed commands |
| 3576 | (that assumes the vector is in a keymap). |
| 3577 | |
| 3578 | SHADOW is a list of keymaps that shadow this map. |
| 3579 | If it is non-nil, then we look up the key in those maps |
| 3580 | and we don't mention it now if it is defined by any of them. |
| 3581 | |
| 3582 | ENTIRE_MAP is the keymap in which this vector appears. |
| 3583 | If the definition in effect in the whole map does not match |
| 3584 | the one in this vector, we ignore this one. |
| 3585 | |
| 3586 | ARGS is simply passed as the second argument to ELT_DESCRIBER. |
| 3587 | |
| 3588 | INDICES and CHAR_TABLE_DEPTH are ignored. They will be removed in |
| 3589 | the near future. |
| 3590 | |
| 3591 | KEYMAP_P is 1 if vector is known to be a keymap, so map ESC to M-. |
| 3592 | |
| 3593 | ARGS is simply passed as the second argument to ELT_DESCRIBER. */ |
| 3594 | |
| 3595 | static void |
| 3596 | describe_vector (vector, prefix, args, elt_describer, |
| 3597 | partial, shadow, entire_map, |
| 3598 | indices, char_table_depth, keymap_p, |
| 3599 | mention_shadow) |
| 3600 | register Lisp_Object vector; |
| 3601 | Lisp_Object prefix, args; |
| 3602 | void (*elt_describer) P_ ((Lisp_Object, Lisp_Object)); |
| 3603 | int partial; |
| 3604 | Lisp_Object shadow; |
| 3605 | Lisp_Object entire_map; |
| 3606 | int *indices; |
| 3607 | int char_table_depth; |
| 3608 | int keymap_p; |
| 3609 | int mention_shadow; |
| 3610 | { |
| 3611 | Lisp_Object definition; |
| 3612 | Lisp_Object tem2; |
| 3613 | Lisp_Object elt_prefix = Qnil; |
| 3614 | int i; |
| 3615 | Lisp_Object suppress; |
| 3616 | Lisp_Object kludge; |
| 3617 | int first = 1; |
| 3618 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; |
| 3619 | /* Range of elements to be handled. */ |
| 3620 | int from, to; |
| 3621 | Lisp_Object character; |
| 3622 | int starting_i; |
| 3623 | |
| 3624 | suppress = Qnil; |
| 3625 | |
| 3626 | definition = Qnil; |
| 3627 | |
| 3628 | if (!keymap_p) |
| 3629 | { |
| 3630 | /* Call Fkey_description first, to avoid GC bug for the other string. */ |
| 3631 | if (!NILP (prefix) && XFASTINT (Flength (prefix)) > 0) |
| 3632 | { |
| 3633 | Lisp_Object tem; |
| 3634 | tem = Fkey_description (prefix, Qnil); |
| 3635 | elt_prefix = concat2 (tem, build_string (" ")); |
| 3636 | } |
| 3637 | prefix = Qnil; |
| 3638 | } |
| 3639 | |
| 3640 | /* This vector gets used to present single keys to Flookup_key. Since |
| 3641 | that is done once per vector element, we don't want to cons up a |
| 3642 | fresh vector every time. */ |
| 3643 | kludge = Fmake_vector (make_number (1), Qnil); |
| 3644 | GCPRO4 (elt_prefix, prefix, definition, kludge); |
| 3645 | |
| 3646 | if (partial) |
| 3647 | suppress = intern ("suppress-keymap"); |
| 3648 | |
| 3649 | from = 0; |
| 3650 | to = CHAR_TABLE_P (vector) ? MAX_CHAR + 1 : XVECTOR (vector)->size; |
| 3651 | |
| 3652 | for (i = from; i < to; i++) |
| 3653 | { |
| 3654 | int this_shadowed = 0; |
| 3655 | int range_beg, range_end; |
| 3656 | Lisp_Object val; |
| 3657 | |
| 3658 | QUIT; |
| 3659 | |
| 3660 | starting_i = i; |
| 3661 | |
| 3662 | if (CHAR_TABLE_P (vector)) |
| 3663 | val = char_table_ref_and_range (vector, i, &range_beg, &i); |
| 3664 | else |
| 3665 | val = AREF (vector, i); |
| 3666 | definition = get_keyelt (val, 0); |
| 3667 | |
| 3668 | if (NILP (definition)) continue; |
| 3669 | |
| 3670 | /* Don't mention suppressed commands. */ |
| 3671 | if (SYMBOLP (definition) && partial) |
| 3672 | { |
| 3673 | Lisp_Object tem; |
| 3674 | |
| 3675 | tem = Fget (definition, suppress); |
| 3676 | |
| 3677 | if (!NILP (tem)) continue; |
| 3678 | } |
| 3679 | |
| 3680 | character = make_number (starting_i); |
| 3681 | ASET (kludge, 0, character); |
| 3682 | |
| 3683 | /* If this binding is shadowed by some other map, ignore it. */ |
| 3684 | if (!NILP (shadow)) |
| 3685 | { |
| 3686 | Lisp_Object tem; |
| 3687 | |
| 3688 | tem = shadow_lookup (shadow, kludge, Qt); |
| 3689 | |
| 3690 | if (!NILP (tem)) |
| 3691 | { |
| 3692 | if (mention_shadow) |
| 3693 | this_shadowed = 1; |
| 3694 | else |
| 3695 | continue; |
| 3696 | } |
| 3697 | } |
| 3698 | |
| 3699 | /* Ignore this definition if it is shadowed by an earlier |
| 3700 | one in the same keymap. */ |
| 3701 | if (!NILP (entire_map)) |
| 3702 | { |
| 3703 | Lisp_Object tem; |
| 3704 | |
| 3705 | tem = Flookup_key (entire_map, kludge, Qt); |
| 3706 | |
| 3707 | if (!EQ (tem, definition)) |
| 3708 | continue; |
| 3709 | } |
| 3710 | |
| 3711 | if (first) |
| 3712 | { |
| 3713 | insert ("\n", 1); |
| 3714 | first = 0; |
| 3715 | } |
| 3716 | |
| 3717 | /* Output the prefix that applies to every entry in this map. */ |
| 3718 | if (!NILP (elt_prefix)) |
| 3719 | insert1 (elt_prefix); |
| 3720 | |
| 3721 | insert1 (Fkey_description (kludge, prefix)); |
| 3722 | |
| 3723 | /* Find all consecutive characters or rows that have the same |
| 3724 | definition. But, for elements of a top level char table, if |
| 3725 | they are for charsets, we had better describe one by one even |
| 3726 | if they have the same definition. */ |
| 3727 | if (CHAR_TABLE_P (vector)) |
| 3728 | while (i + 1 < to |
| 3729 | && (val = char_table_ref_and_range (vector, i + 1, |
| 3730 | &range_beg, &range_end), |
| 3731 | tem2 = get_keyelt (val, 0), |
| 3732 | !NILP (tem2)) |
| 3733 | && !NILP (Fequal (tem2, definition))) |
| 3734 | i = range_end; |
| 3735 | else |
| 3736 | while (i + 1 < to |
| 3737 | && (tem2 = get_keyelt (AREF (vector, i + 1), 0), |
| 3738 | !NILP (tem2)) |
| 3739 | && !NILP (Fequal (tem2, definition))) |
| 3740 | i++; |
| 3741 | |
| 3742 | /* If we have a range of more than one character, |
| 3743 | print where the range reaches to. */ |
| 3744 | |
| 3745 | if (i != starting_i) |
| 3746 | { |
| 3747 | insert (" .. ", 4); |
| 3748 | |
| 3749 | ASET (kludge, 0, make_number (i)); |
| 3750 | |
| 3751 | if (!NILP (elt_prefix)) |
| 3752 | insert1 (elt_prefix); |
| 3753 | |
| 3754 | insert1 (Fkey_description (kludge, prefix)); |
| 3755 | } |
| 3756 | |
| 3757 | /* Print a description of the definition of this character. |
| 3758 | elt_describer will take care of spacing out far enough |
| 3759 | for alignment purposes. */ |
| 3760 | (*elt_describer) (definition, args); |
| 3761 | |
| 3762 | if (this_shadowed) |
| 3763 | { |
| 3764 | SET_PT (PT - 1); |
| 3765 | insert_string (" (binding currently shadowed)"); |
| 3766 | SET_PT (PT + 1); |
| 3767 | } |
| 3768 | } |
| 3769 | |
| 3770 | if (CHAR_TABLE_P (vector) && ! NILP (XCHAR_TABLE (vector)->defalt)) |
| 3771 | { |
| 3772 | if (!NILP (elt_prefix)) |
| 3773 | insert1 (elt_prefix); |
| 3774 | insert ("default", 7); |
| 3775 | (*elt_describer) (XCHAR_TABLE (vector)->defalt, args); |
| 3776 | } |
| 3777 | |
| 3778 | UNGCPRO; |
| 3779 | } |
| 3780 | \f |
| 3781 | /* Apropos - finding all symbols whose names match a regexp. */ |
| 3782 | static Lisp_Object apropos_predicate; |
| 3783 | static Lisp_Object apropos_accumulate; |
| 3784 | |
| 3785 | static void |
| 3786 | apropos_accum (symbol, string) |
| 3787 | Lisp_Object symbol, string; |
| 3788 | { |
| 3789 | register Lisp_Object tem; |
| 3790 | |
| 3791 | tem = Fstring_match (string, Fsymbol_name (symbol), Qnil); |
| 3792 | if (!NILP (tem) && !NILP (apropos_predicate)) |
| 3793 | tem = call1 (apropos_predicate, symbol); |
| 3794 | if (!NILP (tem)) |
| 3795 | apropos_accumulate = Fcons (symbol, apropos_accumulate); |
| 3796 | } |
| 3797 | |
| 3798 | DEFUN ("apropos-internal", Fapropos_internal, Sapropos_internal, 1, 2, 0, |
| 3799 | doc: /* Show all symbols whose names contain match for REGEXP. |
| 3800 | If optional 2nd arg PREDICATE is non-nil, (funcall PREDICATE SYMBOL) is done |
| 3801 | for each symbol and a symbol is mentioned only if that returns non-nil. |
| 3802 | Return list of symbols found. */) |
| 3803 | (regexp, predicate) |
| 3804 | Lisp_Object regexp, predicate; |
| 3805 | { |
| 3806 | Lisp_Object tem; |
| 3807 | CHECK_STRING (regexp); |
| 3808 | apropos_predicate = predicate; |
| 3809 | apropos_accumulate = Qnil; |
| 3810 | map_obarray (Vobarray, apropos_accum, regexp); |
| 3811 | tem = Fsort (apropos_accumulate, Qstring_lessp); |
| 3812 | apropos_accumulate = Qnil; |
| 3813 | apropos_predicate = Qnil; |
| 3814 | return tem; |
| 3815 | } |
| 3816 | \f |
| 3817 | void |
| 3818 | syms_of_keymap () |
| 3819 | { |
| 3820 | Qkeymap = intern ("keymap"); |
| 3821 | staticpro (&Qkeymap); |
| 3822 | staticpro (&apropos_predicate); |
| 3823 | staticpro (&apropos_accumulate); |
| 3824 | apropos_predicate = Qnil; |
| 3825 | apropos_accumulate = Qnil; |
| 3826 | |
| 3827 | /* Now we are ready to set up this property, so we can |
| 3828 | create char tables. */ |
| 3829 | Fput (Qkeymap, Qchar_table_extra_slots, make_number (0)); |
| 3830 | |
| 3831 | /* Initialize the keymaps standardly used. |
| 3832 | Each one is the value of a Lisp variable, and is also |
| 3833 | pointed to by a C variable */ |
| 3834 | |
| 3835 | global_map = Fmake_keymap (Qnil); |
| 3836 | Fset (intern ("global-map"), global_map); |
| 3837 | |
| 3838 | current_global_map = global_map; |
| 3839 | staticpro (&global_map); |
| 3840 | staticpro (¤t_global_map); |
| 3841 | |
| 3842 | meta_map = Fmake_keymap (Qnil); |
| 3843 | Fset (intern ("esc-map"), meta_map); |
| 3844 | Ffset (intern ("ESC-prefix"), meta_map); |
| 3845 | |
| 3846 | control_x_map = Fmake_keymap (Qnil); |
| 3847 | Fset (intern ("ctl-x-map"), control_x_map); |
| 3848 | Ffset (intern ("Control-X-prefix"), control_x_map); |
| 3849 | |
| 3850 | exclude_keys |
| 3851 | = Fcons (Fcons (build_string ("DEL"), build_string ("\\d")), |
| 3852 | Fcons (Fcons (build_string ("TAB"), build_string ("\\t")), |
| 3853 | Fcons (Fcons (build_string ("RET"), build_string ("\\r")), |
| 3854 | Fcons (Fcons (build_string ("ESC"), build_string ("\\e")), |
| 3855 | Fcons (Fcons (build_string ("SPC"), build_string (" ")), |
| 3856 | Qnil))))); |
| 3857 | staticpro (&exclude_keys); |
| 3858 | |
| 3859 | DEFVAR_LISP ("define-key-rebound-commands", &Vdefine_key_rebound_commands, |
| 3860 | doc: /* List of commands given new key bindings recently. |
| 3861 | This is used for internal purposes during Emacs startup; |
| 3862 | don't alter it yourself. */); |
| 3863 | Vdefine_key_rebound_commands = Qt; |
| 3864 | |
| 3865 | DEFVAR_LISP ("minibuffer-local-map", &Vminibuffer_local_map, |
| 3866 | doc: /* Default keymap to use when reading from the minibuffer. */); |
| 3867 | Vminibuffer_local_map = Fmake_sparse_keymap (Qnil); |
| 3868 | |
| 3869 | DEFVAR_LISP ("minibuffer-local-ns-map", &Vminibuffer_local_ns_map, |
| 3870 | doc: /* Local keymap for the minibuffer when spaces are not allowed. */); |
| 3871 | Vminibuffer_local_ns_map = Fmake_sparse_keymap (Qnil); |
| 3872 | Fset_keymap_parent (Vminibuffer_local_ns_map, Vminibuffer_local_map); |
| 3873 | |
| 3874 | DEFVAR_LISP ("minibuffer-local-completion-map", &Vminibuffer_local_completion_map, |
| 3875 | doc: /* Local keymap for minibuffer input with completion. */); |
| 3876 | Vminibuffer_local_completion_map = Fmake_sparse_keymap (Qnil); |
| 3877 | Fset_keymap_parent (Vminibuffer_local_completion_map, Vminibuffer_local_map); |
| 3878 | |
| 3879 | DEFVAR_LISP ("minibuffer-local-filename-completion-map", |
| 3880 | &Vminibuffer_local_filename_completion_map, |
| 3881 | doc: /* Local keymap for minibuffer input with completion for filenames. */); |
| 3882 | Vminibuffer_local_filename_completion_map = Fmake_sparse_keymap (Qnil); |
| 3883 | Fset_keymap_parent (Vminibuffer_local_filename_completion_map, |
| 3884 | Vminibuffer_local_completion_map); |
| 3885 | |
| 3886 | |
| 3887 | DEFVAR_LISP ("minibuffer-local-must-match-map", &Vminibuffer_local_must_match_map, |
| 3888 | doc: /* Local keymap for minibuffer input with completion, for exact match. */); |
| 3889 | Vminibuffer_local_must_match_map = Fmake_sparse_keymap (Qnil); |
| 3890 | Fset_keymap_parent (Vminibuffer_local_must_match_map, |
| 3891 | Vminibuffer_local_completion_map); |
| 3892 | |
| 3893 | DEFVAR_LISP ("minibuffer-local-must-match-filename-map", |
| 3894 | &Vminibuffer_local_must_match_filename_map, |
| 3895 | doc: /* Local keymap for minibuffer input with completion for filenames with exact match. */); |
| 3896 | Vminibuffer_local_must_match_filename_map = Fmake_sparse_keymap (Qnil); |
| 3897 | Fset_keymap_parent (Vminibuffer_local_must_match_filename_map, |
| 3898 | Vminibuffer_local_must_match_map); |
| 3899 | |
| 3900 | DEFVAR_LISP ("minor-mode-map-alist", &Vminor_mode_map_alist, |
| 3901 | doc: /* Alist of keymaps to use for minor modes. |
| 3902 | Each element looks like (VARIABLE . KEYMAP); KEYMAP is used to read |
| 3903 | key sequences and look up bindings if VARIABLE's value is non-nil. |
| 3904 | If two active keymaps bind the same key, the keymap appearing earlier |
| 3905 | in the list takes precedence. */); |
| 3906 | Vminor_mode_map_alist = Qnil; |
| 3907 | |
| 3908 | DEFVAR_LISP ("minor-mode-overriding-map-alist", &Vminor_mode_overriding_map_alist, |
| 3909 | doc: /* Alist of keymaps to use for minor modes, in current major mode. |
| 3910 | This variable is an alist just like `minor-mode-map-alist', and it is |
| 3911 | used the same way (and before `minor-mode-map-alist'); however, |
| 3912 | it is provided for major modes to bind locally. */); |
| 3913 | Vminor_mode_overriding_map_alist = Qnil; |
| 3914 | |
| 3915 | DEFVAR_LISP ("emulation-mode-map-alists", &Vemulation_mode_map_alists, |
| 3916 | doc: /* List of keymap alists to use for emulations modes. |
| 3917 | It is intended for modes or packages using multiple minor-mode keymaps. |
| 3918 | Each element is a keymap alist just like `minor-mode-map-alist', or a |
| 3919 | symbol with a variable binding which is a keymap alist, and it is used |
| 3920 | the same way. The "active" keymaps in each alist are used before |
| 3921 | `minor-mode-map-alist' and `minor-mode-overriding-map-alist'. */); |
| 3922 | Vemulation_mode_map_alists = Qnil; |
| 3923 | |
| 3924 | staticpro (&Vmouse_events); |
| 3925 | Vmouse_events = Fcons (intern ("menu-bar"), |
| 3926 | Fcons (intern ("tool-bar"), |
| 3927 | Fcons (intern ("header-line"), |
| 3928 | Fcons (intern ("mode-line"), |
| 3929 | Fcons (intern ("mouse-1"), |
| 3930 | Fcons (intern ("mouse-2"), |
| 3931 | Fcons (intern ("mouse-3"), |
| 3932 | Fcons (intern ("mouse-4"), |
| 3933 | Fcons (intern ("mouse-5"), |
| 3934 | Qnil))))))))); |
| 3935 | |
| 3936 | |
| 3937 | Qsingle_key_description = intern ("single-key-description"); |
| 3938 | staticpro (&Qsingle_key_description); |
| 3939 | |
| 3940 | Qkey_description = intern ("key-description"); |
| 3941 | staticpro (&Qkey_description); |
| 3942 | |
| 3943 | Qkeymapp = intern ("keymapp"); |
| 3944 | staticpro (&Qkeymapp); |
| 3945 | |
| 3946 | Qnon_ascii = intern ("non-ascii"); |
| 3947 | staticpro (&Qnon_ascii); |
| 3948 | |
| 3949 | Qmenu_item = intern ("menu-item"); |
| 3950 | staticpro (&Qmenu_item); |
| 3951 | |
| 3952 | Qremap = intern ("remap"); |
| 3953 | staticpro (&Qremap); |
| 3954 | |
| 3955 | command_remapping_vector = Fmake_vector (make_number (2), Qremap); |
| 3956 | staticpro (&command_remapping_vector); |
| 3957 | |
| 3958 | where_is_cache_keymaps = Qt; |
| 3959 | where_is_cache = Qnil; |
| 3960 | staticpro (&where_is_cache); |
| 3961 | staticpro (&where_is_cache_keymaps); |
| 3962 | |
| 3963 | defsubr (&Skeymapp); |
| 3964 | defsubr (&Skeymap_parent); |
| 3965 | defsubr (&Skeymap_prompt); |
| 3966 | defsubr (&Sset_keymap_parent); |
| 3967 | defsubr (&Smake_keymap); |
| 3968 | defsubr (&Smake_sparse_keymap); |
| 3969 | defsubr (&Smap_keymap); |
| 3970 | defsubr (&Scopy_keymap); |
| 3971 | defsubr (&Scommand_remapping); |
| 3972 | defsubr (&Skey_binding); |
| 3973 | defsubr (&Slocal_key_binding); |
| 3974 | defsubr (&Sglobal_key_binding); |
| 3975 | defsubr (&Sminor_mode_key_binding); |
| 3976 | defsubr (&Sdefine_key); |
| 3977 | defsubr (&Slookup_key); |
| 3978 | defsubr (&Sdefine_prefix_command); |
| 3979 | defsubr (&Suse_global_map); |
| 3980 | defsubr (&Suse_local_map); |
| 3981 | defsubr (&Scurrent_local_map); |
| 3982 | defsubr (&Scurrent_global_map); |
| 3983 | defsubr (&Scurrent_minor_mode_maps); |
| 3984 | defsubr (&Scurrent_active_maps); |
| 3985 | defsubr (&Saccessible_keymaps); |
| 3986 | defsubr (&Skey_description); |
| 3987 | defsubr (&Sdescribe_vector); |
| 3988 | defsubr (&Ssingle_key_description); |
| 3989 | defsubr (&Stext_char_description); |
| 3990 | defsubr (&Swhere_is_internal); |
| 3991 | defsubr (&Sdescribe_buffer_bindings); |
| 3992 | defsubr (&Sapropos_internal); |
| 3993 | } |
| 3994 | |
| 3995 | void |
| 3996 | keys_of_keymap () |
| 3997 | { |
| 3998 | initial_define_key (global_map, 033, "ESC-prefix"); |
| 3999 | initial_define_key (global_map, Ctl('X'), "Control-X-prefix"); |
| 4000 | } |
| 4001 | |
| 4002 | /* arch-tag: 6dd15c26-7cf1-41c4-b904-f42f7ddda463 |
| 4003 | (do not change this comment) */ |