Commit | Line | Data |
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cd645247 | 1 | /* Simple built-in editing commands. |
867d5263 | 2 | Copyright (C) 1985, 93, 94, 95, 96, 97, 1998, 2001, 02 Free Software Foundation, Inc. |
cd645247 JB |
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 | |
502ddf23 | 8 | the Free Software Foundation; either version 2, or (at your option) |
cd645247 JB |
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 | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
cd645247 JB |
20 | |
21 | ||
18160b98 | 22 | #include <config.h> |
cd645247 JB |
23 | #include "lisp.h" |
24 | #include "commands.h" | |
25 | #include "buffer.h" | |
9e4fd67b | 26 | #include "charset.h" |
cd645247 | 27 | #include "syntax.h" |
f109dfa2 | 28 | #include "window.h" |
346e0c2d | 29 | #include "keyboard.h" |
e35f6ff7 | 30 | #include "keymap.h" |
dfcf069d | 31 | #include "dispextern.h" |
cd645247 JB |
32 | |
33 | Lisp_Object Qkill_forward_chars, Qkill_backward_chars, Vblink_paren_function; | |
34 | ||
6bbb0d4a JB |
35 | /* A possible value for a buffer's overwrite-mode variable. */ |
36 | Lisp_Object Qoverwrite_mode_binary; | |
37 | ||
189fad68 RS |
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 | ||
189fad68 | 44 | extern Lisp_Object Qface; |
867d5263 | 45 | extern Lisp_Object Vtranslation_table_for_input; |
cd645247 | 46 | \f |
9e4fd67b | 47 | DEFUN ("forward-point", Fforward_point, Sforward_point, 1, 1, 0, |
335c5470 PJ |
48 | doc: /* Return buffer position N characters after (before if N negative) point. */) |
49 | (n) | |
9e4fd67b KH |
50 | Lisp_Object n; |
51 | { | |
b7826503 | 52 | CHECK_NUMBER (n); |
9e4fd67b | 53 | |
049749e6 | 54 | return make_number (PT + XINT (n)); |
9e4fd67b KH |
55 | } |
56 | ||
cd645247 | 57 | DEFUN ("forward-char", Fforward_char, Sforward_char, 0, 1, "p", |
335c5470 PJ |
58 | doc: /* Move point right N characters (left if N is negative). |
59 | On reaching end of buffer, stop and signal error. */) | |
60 | (n) | |
72d5f589 | 61 | Lisp_Object n; |
cd645247 | 62 | { |
72d5f589 EN |
63 | if (NILP (n)) |
64 | XSETFASTINT (n, 1); | |
cd645247 | 65 | else |
b7826503 | 66 | CHECK_NUMBER (n); |
cd645247 | 67 | |
72d5f589 | 68 | /* This used to just set point to point + XINT (n), and then check |
7b502dc3 JB |
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 | { | |
049749e6 | 74 | int new_point = PT + XINT (n); |
7b502dc3 JB |
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 | ||
cd645247 JB |
90 | return Qnil; |
91 | } | |
92 | ||
93 | DEFUN ("backward-char", Fbackward_char, Sbackward_char, 0, 1, "p", | |
335c5470 PJ |
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) | |
72d5f589 | 97 | Lisp_Object n; |
cd645247 | 98 | { |
72d5f589 EN |
99 | if (NILP (n)) |
100 | XSETFASTINT (n, 1); | |
cd645247 | 101 | else |
b7826503 | 102 | CHECK_NUMBER (n); |
cd645247 | 103 | |
72d5f589 EN |
104 | XSETINT (n, - XINT (n)); |
105 | return Fforward_char (n); | |
cd645247 JB |
106 | } |
107 | ||
108 | DEFUN ("forward-line", Fforward_line, Sforward_line, 0, 1, "p", | |
335c5470 PJ |
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) | |
cd645247 JB |
117 | Lisp_Object n; |
118 | { | |
049749e6 RS |
119 | int opoint = PT, opoint_byte = PT_BYTE; |
120 | int pos, pos_byte; | |
121 | int count, shortage; | |
cd645247 | 122 | |
265a9e55 | 123 | if (NILP (n)) |
cd645247 JB |
124 | count = 1; |
125 | else | |
126 | { | |
b7826503 | 127 | CHECK_NUMBER (n); |
cd645247 JB |
128 | count = XINT (n); |
129 | } | |
130 | ||
049749e6 RS |
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 | ||
cd645247 | 144 | if (shortage > 0 |
049749e6 | 145 | && (count <= 0 |
502ddf23 | 146 | || (ZV > BEGV |
049749e6 RS |
147 | && PT != opoint |
148 | && (FETCH_BYTE (PT_BYTE - 1) != '\n')))) | |
cd645247 | 149 | shortage--; |
049749e6 RS |
150 | |
151 | return make_number (count <= 0 ? - shortage : shortage); | |
cd645247 JB |
152 | } |
153 | ||
8abc9869 MB |
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 | |
a731cae2 | 165 | boundaries. */) |
8abc9869 | 166 | (n) |
cd645247 JB |
167 | Lisp_Object n; |
168 | { | |
265a9e55 | 169 | if (NILP (n)) |
48c7cef2 | 170 | XSETFASTINT (n, 1); |
cd645247 | 171 | else |
b7826503 | 172 | CHECK_NUMBER (n); |
cd645247 | 173 | |
0aee588d | 174 | SET_PT (XINT (Fline_beginning_position (n))); |
a731cae2 | 175 | |
cd645247 JB |
176 | return Qnil; |
177 | } | |
178 | ||
8abc9869 MB |
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. | |
fda3de70 | 183 | To ignore intangibility, bind `inhibit-text-motion-hooks' to t. |
8abc9869 MB |
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) | |
cd645247 JB |
190 | Lisp_Object n; |
191 | { | |
fda3de70 RS |
192 | int newpos; |
193 | ||
265a9e55 | 194 | if (NILP (n)) |
48c7cef2 | 195 | XSETFASTINT (n, 1); |
cd645247 | 196 | else |
b7826503 | 197 | CHECK_NUMBER (n); |
cd645247 | 198 | |
fda3de70 RS |
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 | } | |
cd645247 JB |
224 | |
225 | return Qnil; | |
226 | } | |
227 | ||
228 | DEFUN ("delete-char", Fdelete_char, Sdelete_char, 1, 2, "p\nP", | |
335c5470 PJ |
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) | |
cd645247 JB |
234 | Lisp_Object n, killflag; |
235 | { | |
9e4fd67b KH |
236 | int pos; |
237 | ||
b7826503 | 238 | CHECK_NUMBER (n); |
cd645247 | 239 | |
049749e6 | 240 | pos = PT + XINT (n); |
265a9e55 | 241 | if (NILP (killflag)) |
cd645247 JB |
242 | { |
243 | if (XINT (n) < 0) | |
244 | { | |
9e4fd67b | 245 | if (pos < BEGV) |
cd645247 JB |
246 | Fsignal (Qbeginning_of_buffer, Qnil); |
247 | else | |
9e4fd67b | 248 | del_range (pos, PT); |
cd645247 JB |
249 | } |
250 | else | |
251 | { | |
9e4fd67b | 252 | if (pos > ZV) |
cd645247 JB |
253 | Fsignal (Qend_of_buffer, Qnil); |
254 | else | |
9e4fd67b | 255 | del_range (PT, pos); |
cd645247 JB |
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, | |
335c5470 PJ |
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) | |
cd645247 JB |
272 | Lisp_Object n, killflag; |
273 | { | |
aa970069 | 274 | Lisp_Object value; |
7c983171 | 275 | int deleted_special = 0; |
ceb7e4f8 | 276 | int pos, pos_byte, i; |
aa970069 | 277 | |
b7826503 | 278 | CHECK_NUMBER (n); |
aa970069 | 279 | |
7c983171 | 280 | /* See if we are about to delete a tab or newline backwards. */ |
ceb7e4f8 KH |
281 | pos = PT; |
282 | pos_byte = PT_BYTE; | |
283 | for (i = 0; i < XINT (n) && pos_byte > BEGV_BYTE; i++) | |
aa970069 | 284 | { |
9e4fd67b KH |
285 | int c; |
286 | ||
ceb7e4f8 KH |
287 | DEC_BOTH (pos, pos_byte); |
288 | c = FETCH_BYTE (pos_byte); | |
9e4fd67b | 289 | if (c == '\t' || c == '\n') |
aa970069 | 290 | { |
7c983171 | 291 | deleted_special = 1; |
aa970069 RS |
292 | break; |
293 | } | |
294 | } | |
295 | ||
aa970069 RS |
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) | |
7c983171 | 300 | && ! deleted_special |
049749e6 | 301 | && ! (PT == ZV || FETCH_BYTE (PT_BYTE) == '\n')) |
aa970069 | 302 | { |
a731cae2 | 303 | int column = (int) current_column (); /* iftc */ |
9e4fd67b KH |
304 | |
305 | value = Fdelete_char (make_number (-XINT (n)), killflag); | |
a731cae2 | 306 | i = column - (int) current_column (); /* iftc */ |
cac55749 | 307 | Finsert_char (make_number (' '), make_number (i), Qnil); |
049749e6 RS |
308 | /* Whitespace chars are ASCII chars, so we can simply subtract. */ |
309 | SET_PT_BOTH (PT - i, PT_BYTE - i); | |
aa970069 | 310 | } |
9e4fd67b KH |
311 | else |
312 | value = Fdelete_char (make_number (-XINT (n)), killflag); | |
aa970069 RS |
313 | |
314 | return value; | |
cd645247 JB |
315 | } |
316 | ||
867d5263 DL |
317 | /* Note that there's code in command_loop_1 which typically avoids |
318 | calling this. */ | |
cd645247 | 319 | DEFUN ("self-insert-command", Fself_insert_command, Sself_insert_command, 1, 1, "p", |
335c5470 PJ |
320 | doc: /* Insert the character you type. |
321 | Whichever character you type to run this command is inserted. */) | |
322 | (n) | |
72d5f589 | 323 | Lisp_Object n; |
cd645247 | 324 | { |
b7826503 | 325 | CHECK_NUMBER (n); |
cd645247 JB |
326 | |
327 | /* Barf if the key that invoked this was not a character. */ | |
ed76f667 | 328 | if (!INTEGERP (last_command_char)) |
cd645247 | 329 | bitch_at_user (); |
867d5263 DL |
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)) | |
cd645247 | 334 | { |
867d5263 DL |
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); | |
cd645247 | 351 | } |
867d5263 DL |
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 | } | |
cd645247 JB |
360 | |
361 | return Qnil; | |
362 | } | |
363 | ||
9e4fd67b | 364 | /* Insert character C. If NOAUTOFILL is nonzero, don't do autofill |
4c6e656f RS |
365 | even if it is enabled. |
366 | ||
367 | If this insertion is suitable for direct output (completely simple), | |
aa52fef9 RS |
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. */ | |
4c6e656f | 370 | |
dfcf069d | 371 | int |
9e4fd67b KH |
372 | internal_self_insert (c, noautofill) |
373 | int c; | |
cd645247 JB |
374 | int noautofill; |
375 | { | |
376 | extern Lisp_Object Fexpand_abbrev (); | |
377 | int hairy = 0; | |
378 | Lisp_Object tem; | |
379 | register enum syntaxcode synt; | |
e744155a | 380 | Lisp_Object overwrite, string; |
9e4fd67b KH |
381 | /* Length of multi-byte form of C. */ |
382 | int len; | |
383 | /* Working buffer and pointer for multi-byte form of C. */ | |
e55d9cfd | 384 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
049749e6 | 385 | int chars_to_delete = 0; |
e744155a | 386 | int spaces_to_insert = 0; |
cd645247 | 387 | |
e7aacab7 | 388 | overwrite = current_buffer->overwrite_mode; |
ad44dffe | 389 | if (!NILP (Vbefore_change_functions) || !NILP (Vafter_change_functions)) |
cd645247 JB |
390 | hairy = 1; |
391 | ||
9e4fd67b KH |
392 | /* At first, get multi-byte form of C in STR. */ |
393 | if (!NILP (current_buffer->enable_multibyte_characters)) | |
b9859007 KH |
394 | { |
395 | c = unibyte_char_to_multibyte (c); | |
e55d9cfd | 396 | len = CHAR_STRING (c, str); |
741263c2 KH |
397 | if (len == 1) |
398 | /* If C has modifier bits, this makes C an appropriate | |
399 | one-byte char. */ | |
400 | c = *str; | |
b9859007 | 401 | } |
9e4fd67b | 402 | else |
38b62842 | 403 | { |
e55d9cfd KH |
404 | str[0] = (SINGLE_BYTE_CHAR_P (c) |
405 | ? c | |
406 | : multibyte_char_to_unibyte (c, Qnil)); | |
38b62842 KH |
407 | len = 1; |
408 | } | |
6bbb0d4a | 409 | if (!NILP (overwrite) |
9e4fd67b | 410 | && PT < ZV) |
cd645247 | 411 | { |
9e4fd67b KH |
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 | ||
216b9443 RS |
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. | |
9e4fd67b KH |
425 | The correct value should be calculated only when necessary. */ |
426 | int target_clm = 0; | |
427 | ||
37c0ed09 RS |
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. */ | |
9e4fd67b KH |
433 | if (EQ (overwrite, Qoverwrite_mode_binary) |
434 | || (c != '\n' | |
435 | && c2 != '\n' | |
37c0ed09 RS |
436 | && ! (c2 == '\t' |
437 | && XINT (current_buffer->tab_width) > 0 | |
438 | && XFASTINT (current_buffer->tab_width) < 20 | |
a731cae2 | 439 | && (target_clm = ((int) current_column () /* iftc */ |
06d74a65 | 440 | + XINT (Fchar_width (make_number (c)))), |
37c0ed09 | 441 | target_clm % XFASTINT (current_buffer->tab_width))))) |
9e4fd67b | 442 | { |
e744155a | 443 | int pos = PT; |
049749e6 | 444 | int pos_byte = PT_BYTE; |
e744155a | 445 | |
9e4fd67b | 446 | if (target_clm == 0) |
049749e6 | 447 | chars_to_delete = 1; |
9e4fd67b KH |
448 | else |
449 | { | |
9e4fd67b KH |
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. */ | |
cac55749 RS |
455 | int actual_clm |
456 | = XFASTINT (Fmove_to_column (make_number (target_clm), Qnil)); | |
9e4fd67b | 457 | |
049749e6 | 458 | chars_to_delete = PT - pos; |
e744155a | 459 | |
9e4fd67b KH |
460 | if (actual_clm > target_clm) |
461 | { | |
e744155a | 462 | /* We will delete too many columns. Let's fill columns |
9e4fd67b | 463 | by spaces so that the remaining text won't move. */ |
e744155a | 464 | spaces_to_insert = actual_clm - target_clm; |
9e4fd67b KH |
465 | } |
466 | } | |
049749e6 | 467 | SET_PT_BOTH (pos, pos_byte); |
9e4fd67b KH |
468 | hairy = 2; |
469 | } | |
aa52fef9 | 470 | hairy = 2; |
cd645247 | 471 | } |
265a9e55 | 472 | if (!NILP (current_buffer->abbrev_mode) |
cd645247 | 473 | && SYNTAX (c) != Sword |
265a9e55 | 474 | && NILP (current_buffer->read_only) |
9e4fd67b | 475 | && PT > BEGV && SYNTAX (XFASTINT (Fprevious_char ())) == Sword) |
cd645247 | 476 | { |
ee8caabb | 477 | int modiff = MODIFF; |
e57640c0 RS |
478 | Lisp_Object sym; |
479 | ||
480 | sym = Fexpand_abbrev (); | |
481 | ||
c87dbfd0 | 482 | /* If we expanded an abbrev which has a hook, |
9317a902 | 483 | and the hook has a non-nil `no-self-insert' property, |
e57640c0 | 484 | return right away--don't really self-insert. */ |
9317a902 RS |
485 | if (! NILP (sym) && ! NILP (XSYMBOL (sym)->function) |
486 | && SYMBOLP (XSYMBOL (sym)->function)) | |
e57640c0 RS |
487 | { |
488 | Lisp_Object prop; | |
9317a902 | 489 | prop = Fget (XSYMBOL (sym)->function, intern ("no-self-insert")); |
e57640c0 | 490 | if (! NILP (prop)) |
6787d111 | 491 | return 1; |
e57640c0 RS |
492 | } |
493 | ||
ee8caabb | 494 | if (MODIFF != modiff) |
aa52fef9 | 495 | hairy = 2; |
cd645247 | 496 | } |
e744155a | 497 | |
049749e6 | 498 | if (chars_to_delete) |
e744155a | 499 | { |
f34206b4 | 500 | string = make_string_from_bytes (str, 1, len); |
e744155a RS |
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 | ||
5f65b1b4 | 508 | replace_range (PT, PT + chars_to_delete, string, 1, 1, 1); |
1bf95511 | 509 | Fforward_char (make_number (1 + spaces_to_insert)); |
e744155a RS |
510 | } |
511 | else | |
512 | insert_and_inherit (str, len); | |
513 | ||
01428933 KH |
514 | if ((CHAR_TABLE_P (Vauto_fill_chars) |
515 | ? !NILP (CHAR_TABLE_REF (Vauto_fill_chars, c)) | |
516 | : (c == ' ' || c == '\n')) | |
cd645247 | 517 | && !noautofill |
3de15b7a | 518 | && !NILP (current_buffer->auto_fill_function)) |
cd645247 | 519 | { |
76bb6dbb KH |
520 | Lisp_Object tem; |
521 | ||
9e4fd67b | 522 | if (c == '\n') |
049749e6 RS |
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); | |
76bb6dbb | 527 | tem = call0 (current_buffer->auto_fill_function); |
9e4fd67b | 528 | if (c == '\n') |
049749e6 | 529 | SET_PT_BOTH (PT + 1, PT_BYTE + 1); |
76bb6dbb KH |
530 | if (!NILP (tem)) |
531 | hairy = 2; | |
cd645247 | 532 | } |
189fad68 RS |
533 | |
534 | /* If previous command specified a face to use, use it. */ | |
535 | if (!NILP (Vself_insert_face) | |
346e0c2d | 536 | && EQ (current_kboard->Vlast_command, Vself_insert_face_command)) |
189fad68 | 537 | { |
049749e6 RS |
538 | Fput_text_property (make_number (PT - 1), make_number (PT), |
539 | Qface, Vself_insert_face, Qnil); | |
189fad68 RS |
540 | Vself_insert_face = Qnil; |
541 | } | |
e744155a | 542 | |
cd645247 JB |
543 | synt = SYNTAX (c); |
544 | if ((synt == Sclose || synt == Smath) | |
2718dfa4 RS |
545 | && !NILP (Vblink_paren_function) && INTERACTIVE |
546 | && !noautofill) | |
cd645247 JB |
547 | { |
548 | call0 (Vblink_paren_function); | |
aa52fef9 | 549 | hairy = 2; |
cd645247 JB |
550 | } |
551 | return hairy; | |
552 | } | |
553 | \f | |
554 | /* module initialization */ | |
555 | ||
dfcf069d | 556 | void |
cd645247 JB |
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 | ||
6bbb0d4a JB |
565 | Qoverwrite_mode_binary = intern ("overwrite-mode-binary"); |
566 | staticpro (&Qoverwrite_mode_binary); | |
e686c647 | 567 | |
189fad68 | 568 | DEFVAR_LISP ("self-insert-face", &Vself_insert_face, |
335c5470 PJ |
569 | doc: /* If non-nil, set the face of the next self-inserting character to this. |
570 | See also `self-insert-face-command'. */); | |
189fad68 RS |
571 | Vself_insert_face = Qnil; |
572 | ||
573 | DEFVAR_LISP ("self-insert-face-command", &Vself_insert_face_command, | |
335c5470 PJ |
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'. */); | |
189fad68 RS |
576 | Vself_insert_face_command = Qnil; |
577 | ||
cd645247 | 578 | DEFVAR_LISP ("blink-paren-function", &Vblink_paren_function, |
335c5470 PJ |
579 | doc: /* Function called, if non-nil, whenever a close parenthesis is inserted. |
580 | More precisely, a char with closeparen syntax is self-inserted. */); | |
cd645247 JB |
581 | Vblink_paren_function = Qnil; |
582 | ||
9e4fd67b | 583 | defsubr (&Sforward_point); |
cd645247 JB |
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); | |
cd645247 JB |
594 | } |
595 | ||
dfcf069d | 596 | void |
cd645247 JB |
597 | keys_of_cmds () |
598 | { | |
599 | int n; | |
600 | ||
cbf65115 | 601 | initial_define_key (global_map, Ctl ('I'), "self-insert-command"); |
cd645247 JB |
602 | for (n = 040; n < 0177; n++) |
603 | initial_define_key (global_map, n, "self-insert-command"); | |
cf9cdc11 RS |
604 | #ifdef MSDOS |
605 | for (n = 0200; n < 0240; n++) | |
606 | initial_define_key (global_map, n, "self-insert-command"); | |
607 | #endif | |
94748cb9 | 608 | for (n = 0240; n < 0400; n++) |
eb46da6a | 609 | initial_define_key (global_map, n, "self-insert-command"); |
cd645247 JB |
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 | } |