| 1 | /* Simple built-in editing commands. |
| 2 | Copyright (C) 1985, 93, 94, 95, 96, 97, 1998, 2001, 02 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GNU Emacs. |
| 5 | |
| 6 | GNU Emacs is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2, or (at your option) |
| 9 | any later version. |
| 10 | |
| 11 | GNU Emacs is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with GNU Emacs; see the file COPYING. If not, write to |
| 18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 19 | Boston, MA 02111-1307, USA. */ |
| 20 | |
| 21 | |
| 22 | #include <config.h> |
| 23 | #include "lisp.h" |
| 24 | #include "commands.h" |
| 25 | #include "buffer.h" |
| 26 | #include "charset.h" |
| 27 | #include "syntax.h" |
| 28 | #include "window.h" |
| 29 | #include "keyboard.h" |
| 30 | #include "keymap.h" |
| 31 | #include "dispextern.h" |
| 32 | |
| 33 | Lisp_Object Qkill_forward_chars, Qkill_backward_chars, Vblink_paren_function; |
| 34 | |
| 35 | /* A possible value for a buffer's overwrite-mode variable. */ |
| 36 | Lisp_Object Qoverwrite_mode_binary; |
| 37 | |
| 38 | /* Non-nil means put this face on the next self-inserting character. */ |
| 39 | Lisp_Object Vself_insert_face; |
| 40 | |
| 41 | /* This is the command that set up Vself_insert_face. */ |
| 42 | Lisp_Object Vself_insert_face_command; |
| 43 | |
| 44 | extern Lisp_Object Qface; |
| 45 | extern Lisp_Object Vtranslation_table_for_input; |
| 46 | \f |
| 47 | DEFUN ("forward-point", Fforward_point, Sforward_point, 1, 1, 0, |
| 48 | doc: /* Return buffer position N characters after (before if N negative) point. */) |
| 49 | (n) |
| 50 | Lisp_Object n; |
| 51 | { |
| 52 | CHECK_NUMBER (n); |
| 53 | |
| 54 | return make_number (PT + XINT (n)); |
| 55 | } |
| 56 | |
| 57 | DEFUN ("forward-char", Fforward_char, Sforward_char, 0, 1, "p", |
| 58 | doc: /* Move point right N characters (left if N is negative). |
| 59 | On reaching end of buffer, stop and signal error. */) |
| 60 | (n) |
| 61 | Lisp_Object n; |
| 62 | { |
| 63 | if (NILP (n)) |
| 64 | XSETFASTINT (n, 1); |
| 65 | else |
| 66 | CHECK_NUMBER (n); |
| 67 | |
| 68 | /* This used to just set point to point + XINT (n), and then check |
| 69 | to see if it was within boundaries. But now that SET_PT can |
| 70 | potentially do a lot of stuff (calling entering and exiting |
| 71 | hooks, etcetera), that's not a good approach. So we validate the |
| 72 | proposed position, then set point. */ |
| 73 | { |
| 74 | int new_point = PT + XINT (n); |
| 75 | |
| 76 | if (new_point < BEGV) |
| 77 | { |
| 78 | SET_PT (BEGV); |
| 79 | Fsignal (Qbeginning_of_buffer, Qnil); |
| 80 | } |
| 81 | if (new_point > ZV) |
| 82 | { |
| 83 | SET_PT (ZV); |
| 84 | Fsignal (Qend_of_buffer, Qnil); |
| 85 | } |
| 86 | |
| 87 | SET_PT (new_point); |
| 88 | } |
| 89 | |
| 90 | return Qnil; |
| 91 | } |
| 92 | |
| 93 | DEFUN ("backward-char", Fbackward_char, Sbackward_char, 0, 1, "p", |
| 94 | doc: /* Move point left N characters (right if N is negative). |
| 95 | On attempt to pass beginning or end of buffer, stop and signal error. */) |
| 96 | (n) |
| 97 | Lisp_Object n; |
| 98 | { |
| 99 | if (NILP (n)) |
| 100 | XSETFASTINT (n, 1); |
| 101 | else |
| 102 | CHECK_NUMBER (n); |
| 103 | |
| 104 | XSETINT (n, - XINT (n)); |
| 105 | return Fforward_char (n); |
| 106 | } |
| 107 | |
| 108 | DEFUN ("forward-line", Fforward_line, Sforward_line, 0, 1, "p", |
| 109 | doc: /* Move N lines forward (backward if N is negative). |
| 110 | Precisely, if point is on line I, move to the start of line I + N. |
| 111 | If there isn't room, go as far as possible (no error). |
| 112 | Returns the count of lines left to move. If moving forward, |
| 113 | that is N - number of lines moved; if backward, N + number moved. |
| 114 | With positive N, a non-empty line at the end counts as one line |
| 115 | successfully moved (for the return value). */) |
| 116 | (n) |
| 117 | Lisp_Object n; |
| 118 | { |
| 119 | int opoint = PT, opoint_byte = PT_BYTE; |
| 120 | int pos, pos_byte; |
| 121 | int count, shortage; |
| 122 | |
| 123 | if (NILP (n)) |
| 124 | count = 1; |
| 125 | else |
| 126 | { |
| 127 | CHECK_NUMBER (n); |
| 128 | count = XINT (n); |
| 129 | } |
| 130 | |
| 131 | if (count <= 0) |
| 132 | shortage = scan_newline (PT, PT_BYTE, BEGV, BEGV_BYTE, count - 1, 1); |
| 133 | else |
| 134 | shortage = scan_newline (PT, PT_BYTE, ZV, ZV_BYTE, count, 1); |
| 135 | |
| 136 | /* Since scan_newline does TEMP_SET_PT_BOTH, |
| 137 | and we want to set PT "for real", |
| 138 | go back to the old point and then come back here. */ |
| 139 | pos = PT; |
| 140 | pos_byte = PT_BYTE; |
| 141 | TEMP_SET_PT_BOTH (opoint, opoint_byte); |
| 142 | SET_PT_BOTH (pos, pos_byte); |
| 143 | |
| 144 | if (shortage > 0 |
| 145 | && (count <= 0 |
| 146 | || (ZV > BEGV |
| 147 | && PT != opoint |
| 148 | && (FETCH_BYTE (PT_BYTE - 1) != '\n')))) |
| 149 | shortage--; |
| 150 | |
| 151 | return make_number (count <= 0 ? - shortage : shortage); |
| 152 | } |
| 153 | |
| 154 | DEFUN ("beginning-of-line", Fbeginning_of_line, Sbeginning_of_line, 0, 1, "p", |
| 155 | doc: /* Move point to beginning of current line. |
| 156 | With argument N not nil or 1, move forward N - 1 lines first. |
| 157 | If point reaches the beginning or end of buffer, it stops there. |
| 158 | |
| 159 | This command does not move point across a field boundary unless doing so |
| 160 | would move beyond there to a different line; If N is nil or 1, and point |
| 161 | starts at a field boundary, point does not move. To ignore field |
| 162 | boundaries, either bind `inhibit-field-text-motion' to t, or use the |
| 163 | `forward-line' function instead. For instance, `(forward-line 0)' does |
| 164 | the same thing as `(beginning-of-line)', except that it ignores field |
| 165 | boundaries. */) |
| 166 | (n) |
| 167 | Lisp_Object n; |
| 168 | { |
| 169 | if (NILP (n)) |
| 170 | XSETFASTINT (n, 1); |
| 171 | else |
| 172 | CHECK_NUMBER (n); |
| 173 | |
| 174 | SET_PT (XINT (Fline_beginning_position (n))); |
| 175 | |
| 176 | return Qnil; |
| 177 | } |
| 178 | |
| 179 | DEFUN ("end-of-line", Fend_of_line, Send_of_line, 0, 1, "p", |
| 180 | doc: /* Move point to end of current line. |
| 181 | With argument N not nil or 1, move forward N - 1 lines first. |
| 182 | If point reaches the beginning or end of buffer, it stops there. |
| 183 | To ignore intangibility, bind `inhibit-text-motion-hooks' to t. |
| 184 | |
| 185 | This command does not move point across a field boundary unless doing so |
| 186 | would move beyond there to a different line; if N is nil or 1, and |
| 187 | point starts at a field boundary, point does not move. To ignore field |
| 188 | boundaries bind `inhibit-field-text-motion' to t. */) |
| 189 | (n) |
| 190 | Lisp_Object n; |
| 191 | { |
| 192 | int newpos; |
| 193 | |
| 194 | if (NILP (n)) |
| 195 | XSETFASTINT (n, 1); |
| 196 | else |
| 197 | CHECK_NUMBER (n); |
| 198 | |
| 199 | while (1) |
| 200 | { |
| 201 | newpos = XINT (Fline_end_position (n)); |
| 202 | SET_PT (newpos); |
| 203 | |
| 204 | if (PT > newpos |
| 205 | && FETCH_CHAR (PT - 1) == '\n') |
| 206 | { |
| 207 | /* If we skipped over a newline that follows |
| 208 | an invisible intangible run, |
| 209 | move back to the last tangible position |
| 210 | within the line. */ |
| 211 | |
| 212 | SET_PT (PT - 1); |
| 213 | break; |
| 214 | } |
| 215 | else if (PT > newpos && PT < ZV |
| 216 | && FETCH_CHAR (PT) != '\n') |
| 217 | /* If we skipped something intangible |
| 218 | and now we're not really at eol, |
| 219 | keep going. */ |
| 220 | n = make_number (1); |
| 221 | else |
| 222 | break; |
| 223 | } |
| 224 | |
| 225 | return Qnil; |
| 226 | } |
| 227 | |
| 228 | DEFUN ("delete-char", Fdelete_char, Sdelete_char, 1, 2, "p\nP", |
| 229 | doc: /* Delete the following N characters (previous if N is negative). |
| 230 | Optional second arg KILLFLAG non-nil means kill instead (save in kill ring). |
| 231 | Interactively, N is the prefix arg, and KILLFLAG is set if |
| 232 | N was explicitly specified. */) |
| 233 | (n, killflag) |
| 234 | Lisp_Object n, killflag; |
| 235 | { |
| 236 | int pos; |
| 237 | |
| 238 | CHECK_NUMBER (n); |
| 239 | |
| 240 | pos = PT + XINT (n); |
| 241 | if (NILP (killflag)) |
| 242 | { |
| 243 | if (XINT (n) < 0) |
| 244 | { |
| 245 | if (pos < BEGV) |
| 246 | Fsignal (Qbeginning_of_buffer, Qnil); |
| 247 | else |
| 248 | del_range (pos, PT); |
| 249 | } |
| 250 | else |
| 251 | { |
| 252 | if (pos > ZV) |
| 253 | Fsignal (Qend_of_buffer, Qnil); |
| 254 | else |
| 255 | del_range (PT, pos); |
| 256 | } |
| 257 | } |
| 258 | else |
| 259 | { |
| 260 | call1 (Qkill_forward_chars, n); |
| 261 | } |
| 262 | return Qnil; |
| 263 | } |
| 264 | |
| 265 | DEFUN ("delete-backward-char", Fdelete_backward_char, Sdelete_backward_char, |
| 266 | 1, 2, "p\nP", |
| 267 | doc: /* Delete the previous N characters (following if N is negative). |
| 268 | Optional second arg KILLFLAG non-nil means kill instead (save in kill ring). |
| 269 | Interactively, N is the prefix arg, and KILLFLAG is set if |
| 270 | N was explicitly specified. */) |
| 271 | (n, killflag) |
| 272 | Lisp_Object n, killflag; |
| 273 | { |
| 274 | Lisp_Object value; |
| 275 | int deleted_special = 0; |
| 276 | int pos, pos_byte, i; |
| 277 | |
| 278 | CHECK_NUMBER (n); |
| 279 | |
| 280 | /* See if we are about to delete a tab or newline backwards. */ |
| 281 | pos = PT; |
| 282 | pos_byte = PT_BYTE; |
| 283 | for (i = 0; i < XINT (n) && pos_byte > BEGV_BYTE; i++) |
| 284 | { |
| 285 | int c; |
| 286 | |
| 287 | DEC_BOTH (pos, pos_byte); |
| 288 | c = FETCH_BYTE (pos_byte); |
| 289 | if (c == '\t' || c == '\n') |
| 290 | { |
| 291 | deleted_special = 1; |
| 292 | break; |
| 293 | } |
| 294 | } |
| 295 | |
| 296 | /* In overwrite mode, back over columns while clearing them out, |
| 297 | unless at end of line. */ |
| 298 | if (XINT (n) > 0 |
| 299 | && ! NILP (current_buffer->overwrite_mode) |
| 300 | && ! deleted_special |
| 301 | && ! (PT == ZV || FETCH_BYTE (PT_BYTE) == '\n')) |
| 302 | { |
| 303 | int column = (int) current_column (); /* iftc */ |
| 304 | |
| 305 | value = Fdelete_char (make_number (-XINT (n)), killflag); |
| 306 | i = column - (int) current_column (); /* iftc */ |
| 307 | Finsert_char (make_number (' '), make_number (i), Qnil); |
| 308 | /* Whitespace chars are ASCII chars, so we can simply subtract. */ |
| 309 | SET_PT_BOTH (PT - i, PT_BYTE - i); |
| 310 | } |
| 311 | else |
| 312 | value = Fdelete_char (make_number (-XINT (n)), killflag); |
| 313 | |
| 314 | return value; |
| 315 | } |
| 316 | |
| 317 | /* Note that there's code in command_loop_1 which typically avoids |
| 318 | calling this. */ |
| 319 | DEFUN ("self-insert-command", Fself_insert_command, Sself_insert_command, 1, 1, "p", |
| 320 | doc: /* Insert the character you type. |
| 321 | Whichever character you type to run this command is inserted. */) |
| 322 | (n) |
| 323 | Lisp_Object n; |
| 324 | { |
| 325 | CHECK_NUMBER (n); |
| 326 | |
| 327 | /* Barf if the key that invoked this was not a character. */ |
| 328 | if (!INTEGERP (last_command_char)) |
| 329 | bitch_at_user (); |
| 330 | { |
| 331 | int character = translate_char (Vtranslation_table_for_input, |
| 332 | XINT (last_command_char), 0, 0, 0); |
| 333 | if (XINT (n) >= 2 && NILP (current_buffer->overwrite_mode)) |
| 334 | { |
| 335 | int modified_char = character; |
| 336 | /* Add the offset to the character, for Finsert_char. |
| 337 | We pass internal_self_insert the unmodified character |
| 338 | because it itself does this offsetting. */ |
| 339 | if (! NILP (current_buffer->enable_multibyte_characters)) |
| 340 | modified_char = unibyte_char_to_multibyte (modified_char); |
| 341 | |
| 342 | XSETFASTINT (n, XFASTINT (n) - 2); |
| 343 | /* The first one might want to expand an abbrev. */ |
| 344 | internal_self_insert (character, 1); |
| 345 | /* The bulk of the copies of this char can be inserted simply. |
| 346 | We don't have to handle a user-specified face specially |
| 347 | because it will get inherited from the first char inserted. */ |
| 348 | Finsert_char (make_number (modified_char), n, Qt); |
| 349 | /* The last one might want to auto-fill. */ |
| 350 | internal_self_insert (character, 0); |
| 351 | } |
| 352 | else |
| 353 | while (XINT (n) > 0) |
| 354 | { |
| 355 | /* Ok since old and new vals both nonneg */ |
| 356 | XSETFASTINT (n, XFASTINT (n) - 1); |
| 357 | internal_self_insert (character, XFASTINT (n) != 0); |
| 358 | } |
| 359 | } |
| 360 | |
| 361 | return Qnil; |
| 362 | } |
| 363 | |
| 364 | /* Insert character C. If NOAUTOFILL is nonzero, don't do autofill |
| 365 | even if it is enabled. |
| 366 | |
| 367 | If this insertion is suitable for direct output (completely simple), |
| 368 | return 0. A value of 1 indicates this *might* not have been simple. |
| 369 | A value of 2 means this did things that call for an undo boundary. */ |
| 370 | |
| 371 | int |
| 372 | internal_self_insert (c, noautofill) |
| 373 | int c; |
| 374 | int noautofill; |
| 375 | { |
| 376 | extern Lisp_Object Fexpand_abbrev (); |
| 377 | int hairy = 0; |
| 378 | Lisp_Object tem; |
| 379 | register enum syntaxcode synt; |
| 380 | Lisp_Object overwrite, string; |
| 381 | /* Length of multi-byte form of C. */ |
| 382 | int len; |
| 383 | /* Working buffer and pointer for multi-byte form of C. */ |
| 384 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
| 385 | int chars_to_delete = 0; |
| 386 | int spaces_to_insert = 0; |
| 387 | |
| 388 | overwrite = current_buffer->overwrite_mode; |
| 389 | if (!NILP (Vbefore_change_functions) || !NILP (Vafter_change_functions)) |
| 390 | hairy = 1; |
| 391 | |
| 392 | /* At first, get multi-byte form of C in STR. */ |
| 393 | if (!NILP (current_buffer->enable_multibyte_characters)) |
| 394 | { |
| 395 | c = unibyte_char_to_multibyte (c); |
| 396 | len = CHAR_STRING (c, str); |
| 397 | if (len == 1) |
| 398 | /* If C has modifier bits, this makes C an appropriate |
| 399 | one-byte char. */ |
| 400 | c = *str; |
| 401 | } |
| 402 | else |
| 403 | { |
| 404 | str[0] = (SINGLE_BYTE_CHAR_P (c) |
| 405 | ? c |
| 406 | : multibyte_char_to_unibyte (c, Qnil)); |
| 407 | len = 1; |
| 408 | } |
| 409 | if (!NILP (overwrite) |
| 410 | && PT < ZV) |
| 411 | { |
| 412 | /* In overwrite-mode, we substitute a character at point (C2, |
| 413 | hereafter) by C. For that, we delete C2 in advance. But, |
| 414 | just substituting C2 by C may move a remaining text in the |
| 415 | line to the right or to the left, which is not preferable. |
| 416 | So we insert more spaces or delete more characters in the |
| 417 | following cases: if C is narrower than C2, after deleting C2, |
| 418 | we fill columns with spaces, if C is wider than C2, we delete |
| 419 | C2 and several characters following C2. */ |
| 420 | |
| 421 | /* This is the character after point. */ |
| 422 | int c2 = FETCH_CHAR (PT_BYTE); |
| 423 | |
| 424 | /* Column the cursor should be placed at after this insertion. |
| 425 | The correct value should be calculated only when necessary. */ |
| 426 | int target_clm = 0; |
| 427 | |
| 428 | /* Overwriting in binary-mode always replaces C2 by C. |
| 429 | Overwriting in textual-mode doesn't always do that. |
| 430 | It inserts newlines in the usual way, |
| 431 | and inserts any character at end of line |
| 432 | or before a tab if it doesn't use the whole width of the tab. */ |
| 433 | if (EQ (overwrite, Qoverwrite_mode_binary) |
| 434 | || (c != '\n' |
| 435 | && c2 != '\n' |
| 436 | && ! (c2 == '\t' |
| 437 | && XINT (current_buffer->tab_width) > 0 |
| 438 | && XFASTINT (current_buffer->tab_width) < 20 |
| 439 | && (target_clm = ((int) current_column () /* iftc */ |
| 440 | + XINT (Fchar_width (make_number (c)))), |
| 441 | target_clm % XFASTINT (current_buffer->tab_width))))) |
| 442 | { |
| 443 | int pos = PT; |
| 444 | int pos_byte = PT_BYTE; |
| 445 | |
| 446 | if (target_clm == 0) |
| 447 | chars_to_delete = 1; |
| 448 | else |
| 449 | { |
| 450 | /* The actual cursor position after the trial of moving |
| 451 | to column TARGET_CLM. It is greater than TARGET_CLM |
| 452 | if the TARGET_CLM is middle of multi-column |
| 453 | character. In that case, the new point is set after |
| 454 | that character. */ |
| 455 | int actual_clm |
| 456 | = XFASTINT (Fmove_to_column (make_number (target_clm), Qnil)); |
| 457 | |
| 458 | chars_to_delete = PT - pos; |
| 459 | |
| 460 | if (actual_clm > target_clm) |
| 461 | { |
| 462 | /* We will delete too many columns. Let's fill columns |
| 463 | by spaces so that the remaining text won't move. */ |
| 464 | spaces_to_insert = actual_clm - target_clm; |
| 465 | } |
| 466 | } |
| 467 | SET_PT_BOTH (pos, pos_byte); |
| 468 | hairy = 2; |
| 469 | } |
| 470 | hairy = 2; |
| 471 | } |
| 472 | if (!NILP (current_buffer->abbrev_mode) |
| 473 | && SYNTAX (c) != Sword |
| 474 | && NILP (current_buffer->read_only) |
| 475 | && PT > BEGV && SYNTAX (XFASTINT (Fprevious_char ())) == Sword) |
| 476 | { |
| 477 | int modiff = MODIFF; |
| 478 | Lisp_Object sym; |
| 479 | |
| 480 | sym = Fexpand_abbrev (); |
| 481 | |
| 482 | /* If we expanded an abbrev which has a hook, |
| 483 | and the hook has a non-nil `no-self-insert' property, |
| 484 | return right away--don't really self-insert. */ |
| 485 | if (! NILP (sym) && ! NILP (XSYMBOL (sym)->function) |
| 486 | && SYMBOLP (XSYMBOL (sym)->function)) |
| 487 | { |
| 488 | Lisp_Object prop; |
| 489 | prop = Fget (XSYMBOL (sym)->function, intern ("no-self-insert")); |
| 490 | if (! NILP (prop)) |
| 491 | return 1; |
| 492 | } |
| 493 | |
| 494 | if (MODIFF != modiff) |
| 495 | hairy = 2; |
| 496 | } |
| 497 | |
| 498 | if (chars_to_delete) |
| 499 | { |
| 500 | string = make_string_from_bytes (str, 1, len); |
| 501 | if (spaces_to_insert) |
| 502 | { |
| 503 | tem = Fmake_string (make_number (spaces_to_insert), |
| 504 | make_number (' ')); |
| 505 | string = concat2 (tem, string); |
| 506 | } |
| 507 | |
| 508 | replace_range (PT, PT + chars_to_delete, string, 1, 1, 1); |
| 509 | Fforward_char (make_number (1 + spaces_to_insert)); |
| 510 | } |
| 511 | else |
| 512 | insert_and_inherit (str, len); |
| 513 | |
| 514 | if ((CHAR_TABLE_P (Vauto_fill_chars) |
| 515 | ? !NILP (CHAR_TABLE_REF (Vauto_fill_chars, c)) |
| 516 | : (c == ' ' || c == '\n')) |
| 517 | && !noautofill |
| 518 | && !NILP (current_buffer->auto_fill_function)) |
| 519 | { |
| 520 | Lisp_Object tem; |
| 521 | |
| 522 | if (c == '\n') |
| 523 | /* After inserting a newline, move to previous line and fill |
| 524 | that. Must have the newline in place already so filling and |
| 525 | justification, if any, know where the end is going to be. */ |
| 526 | SET_PT_BOTH (PT - 1, PT_BYTE - 1); |
| 527 | tem = call0 (current_buffer->auto_fill_function); |
| 528 | if (c == '\n') |
| 529 | SET_PT_BOTH (PT + 1, PT_BYTE + 1); |
| 530 | if (!NILP (tem)) |
| 531 | hairy = 2; |
| 532 | } |
| 533 | |
| 534 | /* If previous command specified a face to use, use it. */ |
| 535 | if (!NILP (Vself_insert_face) |
| 536 | && EQ (current_kboard->Vlast_command, Vself_insert_face_command)) |
| 537 | { |
| 538 | Fput_text_property (make_number (PT - 1), make_number (PT), |
| 539 | Qface, Vself_insert_face, Qnil); |
| 540 | Vself_insert_face = Qnil; |
| 541 | } |
| 542 | |
| 543 | synt = SYNTAX (c); |
| 544 | if ((synt == Sclose || synt == Smath) |
| 545 | && !NILP (Vblink_paren_function) && INTERACTIVE |
| 546 | && !noautofill) |
| 547 | { |
| 548 | call0 (Vblink_paren_function); |
| 549 | hairy = 2; |
| 550 | } |
| 551 | return hairy; |
| 552 | } |
| 553 | \f |
| 554 | /* module initialization */ |
| 555 | |
| 556 | void |
| 557 | syms_of_cmds () |
| 558 | { |
| 559 | Qkill_backward_chars = intern ("kill-backward-chars"); |
| 560 | staticpro (&Qkill_backward_chars); |
| 561 | |
| 562 | Qkill_forward_chars = intern ("kill-forward-chars"); |
| 563 | staticpro (&Qkill_forward_chars); |
| 564 | |
| 565 | Qoverwrite_mode_binary = intern ("overwrite-mode-binary"); |
| 566 | staticpro (&Qoverwrite_mode_binary); |
| 567 | |
| 568 | DEFVAR_LISP ("self-insert-face", &Vself_insert_face, |
| 569 | doc: /* If non-nil, set the face of the next self-inserting character to this. |
| 570 | See also `self-insert-face-command'. */); |
| 571 | Vself_insert_face = Qnil; |
| 572 | |
| 573 | DEFVAR_LISP ("self-insert-face-command", &Vself_insert_face_command, |
| 574 | doc: /* This is the command that set up `self-insert-face'. |
| 575 | If `last-command' does not equal this value, we ignore `self-insert-face'. */); |
| 576 | Vself_insert_face_command = Qnil; |
| 577 | |
| 578 | DEFVAR_LISP ("blink-paren-function", &Vblink_paren_function, |
| 579 | doc: /* Function called, if non-nil, whenever a close parenthesis is inserted. |
| 580 | More precisely, a char with closeparen syntax is self-inserted. */); |
| 581 | Vblink_paren_function = Qnil; |
| 582 | |
| 583 | defsubr (&Sforward_point); |
| 584 | defsubr (&Sforward_char); |
| 585 | defsubr (&Sbackward_char); |
| 586 | defsubr (&Sforward_line); |
| 587 | defsubr (&Sbeginning_of_line); |
| 588 | defsubr (&Send_of_line); |
| 589 | |
| 590 | defsubr (&Sdelete_char); |
| 591 | defsubr (&Sdelete_backward_char); |
| 592 | |
| 593 | defsubr (&Sself_insert_command); |
| 594 | } |
| 595 | |
| 596 | void |
| 597 | keys_of_cmds () |
| 598 | { |
| 599 | int n; |
| 600 | |
| 601 | initial_define_key (global_map, Ctl ('I'), "self-insert-command"); |
| 602 | for (n = 040; n < 0177; n++) |
| 603 | initial_define_key (global_map, n, "self-insert-command"); |
| 604 | #ifdef MSDOS |
| 605 | for (n = 0200; n < 0240; n++) |
| 606 | initial_define_key (global_map, n, "self-insert-command"); |
| 607 | #endif |
| 608 | for (n = 0240; n < 0400; n++) |
| 609 | initial_define_key (global_map, n, "self-insert-command"); |
| 610 | |
| 611 | initial_define_key (global_map, Ctl ('A'), "beginning-of-line"); |
| 612 | initial_define_key (global_map, Ctl ('B'), "backward-char"); |
| 613 | initial_define_key (global_map, Ctl ('D'), "delete-char"); |
| 614 | initial_define_key (global_map, Ctl ('E'), "end-of-line"); |
| 615 | initial_define_key (global_map, Ctl ('F'), "forward-char"); |
| 616 | initial_define_key (global_map, 0177, "delete-backward-char"); |
| 617 | } |