Commit | Line | Data |
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cd645247 | 1 | /* Simple built-in editing commands. |
8abc9869 | 2 | Copyright (C) 1985, 93, 94, 95, 96, 97, 1998, 2001 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; |
cd645247 | 45 | \f |
9e4fd67b | 46 | DEFUN ("forward-point", Fforward_point, Sforward_point, 1, 1, 0, |
335c5470 PJ |
47 | doc: /* Return buffer position N characters after (before if N negative) point. */) |
48 | (n) | |
9e4fd67b KH |
49 | Lisp_Object n; |
50 | { | |
b7826503 | 51 | CHECK_NUMBER (n); |
9e4fd67b | 52 | |
049749e6 | 53 | return make_number (PT + XINT (n)); |
9e4fd67b KH |
54 | } |
55 | ||
cd645247 | 56 | DEFUN ("forward-char", Fforward_char, Sforward_char, 0, 1, "p", |
335c5470 PJ |
57 | doc: /* Move point right N characters (left if N is negative). |
58 | On reaching end of buffer, stop and signal error. */) | |
59 | (n) | |
72d5f589 | 60 | Lisp_Object n; |
cd645247 | 61 | { |
72d5f589 EN |
62 | if (NILP (n)) |
63 | XSETFASTINT (n, 1); | |
cd645247 | 64 | else |
b7826503 | 65 | CHECK_NUMBER (n); |
cd645247 | 66 | |
72d5f589 | 67 | /* This used to just set point to point + XINT (n), and then check |
7b502dc3 JB |
68 | to see if it was within boundaries. But now that SET_PT can |
69 | potentially do a lot of stuff (calling entering and exiting | |
70 | hooks, etcetera), that's not a good approach. So we validate the | |
71 | proposed position, then set point. */ | |
72 | { | |
049749e6 | 73 | int new_point = PT + XINT (n); |
7b502dc3 JB |
74 | |
75 | if (new_point < BEGV) | |
76 | { | |
77 | SET_PT (BEGV); | |
78 | Fsignal (Qbeginning_of_buffer, Qnil); | |
79 | } | |
80 | if (new_point > ZV) | |
81 | { | |
82 | SET_PT (ZV); | |
83 | Fsignal (Qend_of_buffer, Qnil); | |
84 | } | |
85 | ||
86 | SET_PT (new_point); | |
87 | } | |
88 | ||
cd645247 JB |
89 | return Qnil; |
90 | } | |
91 | ||
92 | DEFUN ("backward-char", Fbackward_char, Sbackward_char, 0, 1, "p", | |
335c5470 PJ |
93 | doc: /* Move point left N characters (right if N is negative). |
94 | On attempt to pass beginning or end of buffer, stop and signal error. */) | |
95 | (n) | |
72d5f589 | 96 | Lisp_Object n; |
cd645247 | 97 | { |
72d5f589 EN |
98 | if (NILP (n)) |
99 | XSETFASTINT (n, 1); | |
cd645247 | 100 | else |
b7826503 | 101 | CHECK_NUMBER (n); |
cd645247 | 102 | |
72d5f589 EN |
103 | XSETINT (n, - XINT (n)); |
104 | return Fforward_char (n); | |
cd645247 JB |
105 | } |
106 | ||
107 | DEFUN ("forward-line", Fforward_line, Sforward_line, 0, 1, "p", | |
335c5470 PJ |
108 | doc: /* Move N lines forward (backward if N is negative). |
109 | Precisely, if point is on line I, move to the start of line I + N. | |
110 | If there isn't room, go as far as possible (no error). | |
111 | Returns the count of lines left to move. If moving forward, | |
112 | that is N - number of lines moved; if backward, N + number moved. | |
113 | With positive N, a non-empty line at the end counts as one line | |
114 | successfully moved (for the return value). */) | |
115 | (n) | |
cd645247 JB |
116 | Lisp_Object n; |
117 | { | |
049749e6 RS |
118 | int opoint = PT, opoint_byte = PT_BYTE; |
119 | int pos, pos_byte; | |
120 | int count, shortage; | |
cd645247 | 121 | |
265a9e55 | 122 | if (NILP (n)) |
cd645247 JB |
123 | count = 1; |
124 | else | |
125 | { | |
b7826503 | 126 | CHECK_NUMBER (n); |
cd645247 JB |
127 | count = XINT (n); |
128 | } | |
129 | ||
049749e6 RS |
130 | if (count <= 0) |
131 | shortage = scan_newline (PT, PT_BYTE, BEGV, BEGV_BYTE, count - 1, 1); | |
132 | else | |
133 | shortage = scan_newline (PT, PT_BYTE, ZV, ZV_BYTE, count, 1); | |
134 | ||
135 | /* Since scan_newline does TEMP_SET_PT_BOTH, | |
136 | and we want to set PT "for real", | |
137 | go back to the old point and then come back here. */ | |
138 | pos = PT; | |
139 | pos_byte = PT_BYTE; | |
140 | TEMP_SET_PT_BOTH (opoint, opoint_byte); | |
141 | SET_PT_BOTH (pos, pos_byte); | |
142 | ||
cd645247 | 143 | if (shortage > 0 |
049749e6 | 144 | && (count <= 0 |
502ddf23 | 145 | || (ZV > BEGV |
049749e6 RS |
146 | && PT != opoint |
147 | && (FETCH_BYTE (PT_BYTE - 1) != '\n')))) | |
cd645247 | 148 | shortage--; |
049749e6 RS |
149 | |
150 | return make_number (count <= 0 ? - shortage : shortage); | |
cd645247 JB |
151 | } |
152 | ||
8abc9869 MB |
153 | DEFUN ("beginning-of-line", Fbeginning_of_line, Sbeginning_of_line, 0, 1, "p", |
154 | doc: /* Move point to beginning of current line. | |
155 | With argument N not nil or 1, move forward N - 1 lines first. | |
156 | If point reaches the beginning or end of buffer, it stops there. | |
157 | ||
158 | This command does not move point across a field boundary unless doing so | |
159 | would move beyond there to a different line; If N is nil or 1, and point | |
160 | starts at a field boundary, point does not move. To ignore field | |
161 | boundaries, either bind `inhibit-field-text-motion' to t, or use the | |
162 | `forward-line' function instead. For instance, `(forward-line 0)' does | |
163 | the same thing as `(beginning-of-line)', except that it ignores field | |
a731cae2 | 164 | boundaries. */) |
8abc9869 | 165 | (n) |
cd645247 JB |
166 | Lisp_Object n; |
167 | { | |
265a9e55 | 168 | if (NILP (n)) |
48c7cef2 | 169 | XSETFASTINT (n, 1); |
cd645247 | 170 | else |
b7826503 | 171 | CHECK_NUMBER (n); |
cd645247 | 172 | |
0aee588d | 173 | SET_PT (XINT (Fline_beginning_position (n))); |
a731cae2 | 174 | |
cd645247 JB |
175 | return Qnil; |
176 | } | |
177 | ||
8abc9869 MB |
178 | DEFUN ("end-of-line", Fend_of_line, Send_of_line, 0, 1, "p", |
179 | doc: /* Move point to end of current line. | |
180 | With argument N not nil or 1, move forward N - 1 lines first. | |
181 | If point reaches the beginning or end of buffer, it stops there. | |
fda3de70 | 182 | To ignore intangibility, bind `inhibit-text-motion-hooks' to t. |
8abc9869 MB |
183 | |
184 | This command does not move point across a field boundary unless doing so | |
185 | would move beyond there to a different line; if N is nil or 1, and | |
186 | point starts at a field boundary, point does not move. To ignore field | |
187 | boundaries bind `inhibit-field-text-motion' to t. */) | |
188 | (n) | |
cd645247 JB |
189 | Lisp_Object n; |
190 | { | |
fda3de70 RS |
191 | int newpos; |
192 | ||
265a9e55 | 193 | if (NILP (n)) |
48c7cef2 | 194 | XSETFASTINT (n, 1); |
cd645247 | 195 | else |
b7826503 | 196 | CHECK_NUMBER (n); |
cd645247 | 197 | |
fda3de70 RS |
198 | while (1) |
199 | { | |
200 | newpos = XINT (Fline_end_position (n)); | |
201 | SET_PT (newpos); | |
202 | ||
203 | if (PT > newpos | |
204 | && FETCH_CHAR (PT - 1) == '\n') | |
205 | { | |
206 | /* If we skipped over a newline that follows | |
207 | an invisible intangible run, | |
208 | move back to the last tangible position | |
209 | within the line. */ | |
210 | ||
211 | SET_PT (PT - 1); | |
212 | break; | |
213 | } | |
214 | else if (PT > newpos && PT < ZV | |
215 | && FETCH_CHAR (PT) != '\n') | |
216 | /* If we skipped something intangible | |
217 | and now we're not really at eol, | |
218 | keep going. */ | |
219 | n = make_number (1); | |
220 | else | |
221 | break; | |
222 | } | |
cd645247 JB |
223 | |
224 | return Qnil; | |
225 | } | |
226 | ||
227 | DEFUN ("delete-char", Fdelete_char, Sdelete_char, 1, 2, "p\nP", | |
335c5470 PJ |
228 | doc: /* Delete the following N characters (previous if N is negative). |
229 | Optional second arg KILLFLAG non-nil means kill instead (save in kill ring). | |
230 | Interactively, N is the prefix arg, and KILLFLAG is set if | |
231 | N was explicitly specified. */) | |
232 | (n, killflag) | |
cd645247 JB |
233 | Lisp_Object n, killflag; |
234 | { | |
9e4fd67b KH |
235 | int pos; |
236 | ||
b7826503 | 237 | CHECK_NUMBER (n); |
cd645247 | 238 | |
049749e6 | 239 | pos = PT + XINT (n); |
265a9e55 | 240 | if (NILP (killflag)) |
cd645247 JB |
241 | { |
242 | if (XINT (n) < 0) | |
243 | { | |
9e4fd67b | 244 | if (pos < BEGV) |
cd645247 JB |
245 | Fsignal (Qbeginning_of_buffer, Qnil); |
246 | else | |
9e4fd67b | 247 | del_range (pos, PT); |
cd645247 JB |
248 | } |
249 | else | |
250 | { | |
9e4fd67b | 251 | if (pos > ZV) |
cd645247 JB |
252 | Fsignal (Qend_of_buffer, Qnil); |
253 | else | |
9e4fd67b | 254 | del_range (PT, pos); |
cd645247 JB |
255 | } |
256 | } | |
257 | else | |
258 | { | |
259 | call1 (Qkill_forward_chars, n); | |
260 | } | |
261 | return Qnil; | |
262 | } | |
263 | ||
264 | DEFUN ("delete-backward-char", Fdelete_backward_char, Sdelete_backward_char, | |
335c5470 PJ |
265 | 1, 2, "p\nP", |
266 | doc: /* Delete the previous N characters (following if N is negative). | |
267 | Optional second arg KILLFLAG non-nil means kill instead (save in kill ring). | |
268 | Interactively, N is the prefix arg, and KILLFLAG is set if | |
269 | N was explicitly specified. */) | |
270 | (n, killflag) | |
cd645247 JB |
271 | Lisp_Object n, killflag; |
272 | { | |
aa970069 | 273 | Lisp_Object value; |
7c983171 | 274 | int deleted_special = 0; |
ceb7e4f8 | 275 | int pos, pos_byte, i; |
aa970069 | 276 | |
b7826503 | 277 | CHECK_NUMBER (n); |
aa970069 | 278 | |
7c983171 | 279 | /* See if we are about to delete a tab or newline backwards. */ |
ceb7e4f8 KH |
280 | pos = PT; |
281 | pos_byte = PT_BYTE; | |
282 | for (i = 0; i < XINT (n) && pos_byte > BEGV_BYTE; i++) | |
aa970069 | 283 | { |
9e4fd67b KH |
284 | int c; |
285 | ||
ceb7e4f8 KH |
286 | DEC_BOTH (pos, pos_byte); |
287 | c = FETCH_BYTE (pos_byte); | |
9e4fd67b | 288 | if (c == '\t' || c == '\n') |
aa970069 | 289 | { |
7c983171 | 290 | deleted_special = 1; |
aa970069 RS |
291 | break; |
292 | } | |
293 | } | |
294 | ||
aa970069 RS |
295 | /* In overwrite mode, back over columns while clearing them out, |
296 | unless at end of line. */ | |
297 | if (XINT (n) > 0 | |
298 | && ! NILP (current_buffer->overwrite_mode) | |
7c983171 | 299 | && ! deleted_special |
049749e6 | 300 | && ! (PT == ZV || FETCH_BYTE (PT_BYTE) == '\n')) |
aa970069 | 301 | { |
a731cae2 | 302 | int column = (int) current_column (); /* iftc */ |
9e4fd67b KH |
303 | |
304 | value = Fdelete_char (make_number (-XINT (n)), killflag); | |
a731cae2 | 305 | i = column - (int) current_column (); /* iftc */ |
cac55749 | 306 | Finsert_char (make_number (' '), make_number (i), Qnil); |
049749e6 RS |
307 | /* Whitespace chars are ASCII chars, so we can simply subtract. */ |
308 | SET_PT_BOTH (PT - i, PT_BYTE - i); | |
aa970069 | 309 | } |
9e4fd67b KH |
310 | else |
311 | value = Fdelete_char (make_number (-XINT (n)), killflag); | |
aa970069 RS |
312 | |
313 | return value; | |
cd645247 JB |
314 | } |
315 | ||
316 | DEFUN ("self-insert-command", Fself_insert_command, Sself_insert_command, 1, 1, "p", | |
335c5470 PJ |
317 | doc: /* Insert the character you type. |
318 | Whichever character you type to run this command is inserted. */) | |
319 | (n) | |
72d5f589 | 320 | Lisp_Object n; |
cd645247 | 321 | { |
a22ca1e0 RS |
322 | int character = XINT (last_command_char); |
323 | ||
b7826503 | 324 | CHECK_NUMBER (n); |
cd645247 JB |
325 | |
326 | /* Barf if the key that invoked this was not a character. */ | |
ed76f667 | 327 | if (!INTEGERP (last_command_char)) |
cd645247 | 328 | bitch_at_user (); |
72d5f589 | 329 | else if (XINT (n) >= 2 && NILP (current_buffer->overwrite_mode)) |
2718dfa4 | 330 | { |
a22ca1e0 RS |
331 | int modified_char = character; |
332 | /* Add the offset to the character, for Finsert_char. | |
333 | We pass internal_self_insert the unmodified character | |
334 | because it itself does this offsetting. */ | |
49bc32b0 RS |
335 | if (! NILP (current_buffer->enable_multibyte_characters)) |
336 | modified_char = unibyte_char_to_multibyte (modified_char); | |
a22ca1e0 | 337 | |
72d5f589 | 338 | XSETFASTINT (n, XFASTINT (n) - 2); |
2718dfa4 | 339 | /* The first one might want to expand an abbrev. */ |
a22ca1e0 | 340 | internal_self_insert (character, 1); |
2718dfa4 RS |
341 | /* The bulk of the copies of this char can be inserted simply. |
342 | We don't have to handle a user-specified face specially | |
343 | because it will get inherited from the first char inserted. */ | |
a22ca1e0 | 344 | Finsert_char (make_number (modified_char), n, Qt); |
2718dfa4 | 345 | /* The last one might want to auto-fill. */ |
a22ca1e0 | 346 | internal_self_insert (character, 0); |
2718dfa4 | 347 | } |
cd645247 | 348 | else |
72d5f589 | 349 | while (XINT (n) > 0) |
cd645247 | 350 | { |
f58dd69b | 351 | /* Ok since old and new vals both nonneg */ |
72d5f589 | 352 | XSETFASTINT (n, XFASTINT (n) - 1); |
a22ca1e0 | 353 | internal_self_insert (character, XFASTINT (n) != 0); |
cd645247 JB |
354 | } |
355 | ||
356 | return Qnil; | |
357 | } | |
358 | ||
9e4fd67b | 359 | /* Insert character C. If NOAUTOFILL is nonzero, don't do autofill |
4c6e656f RS |
360 | even if it is enabled. |
361 | ||
362 | If this insertion is suitable for direct output (completely simple), | |
aa52fef9 RS |
363 | return 0. A value of 1 indicates this *might* not have been simple. |
364 | A value of 2 means this did things that call for an undo boundary. */ | |
4c6e656f | 365 | |
dfcf069d | 366 | int |
9e4fd67b KH |
367 | internal_self_insert (c, noautofill) |
368 | int c; | |
cd645247 JB |
369 | int noautofill; |
370 | { | |
371 | extern Lisp_Object Fexpand_abbrev (); | |
372 | int hairy = 0; | |
373 | Lisp_Object tem; | |
374 | register enum syntaxcode synt; | |
e744155a | 375 | Lisp_Object overwrite, string; |
9e4fd67b KH |
376 | /* Length of multi-byte form of C. */ |
377 | int len; | |
378 | /* Working buffer and pointer for multi-byte form of C. */ | |
e55d9cfd | 379 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
049749e6 | 380 | int chars_to_delete = 0; |
e744155a | 381 | int spaces_to_insert = 0; |
cd645247 | 382 | |
e7aacab7 | 383 | overwrite = current_buffer->overwrite_mode; |
ad44dffe | 384 | if (!NILP (Vbefore_change_functions) || !NILP (Vafter_change_functions)) |
cd645247 JB |
385 | hairy = 1; |
386 | ||
9e4fd67b KH |
387 | /* At first, get multi-byte form of C in STR. */ |
388 | if (!NILP (current_buffer->enable_multibyte_characters)) | |
b9859007 KH |
389 | { |
390 | c = unibyte_char_to_multibyte (c); | |
e55d9cfd | 391 | len = CHAR_STRING (c, str); |
741263c2 KH |
392 | if (len == 1) |
393 | /* If C has modifier bits, this makes C an appropriate | |
394 | one-byte char. */ | |
395 | c = *str; | |
b9859007 | 396 | } |
9e4fd67b | 397 | else |
38b62842 | 398 | { |
e55d9cfd KH |
399 | str[0] = (SINGLE_BYTE_CHAR_P (c) |
400 | ? c | |
401 | : multibyte_char_to_unibyte (c, Qnil)); | |
38b62842 KH |
402 | len = 1; |
403 | } | |
6bbb0d4a | 404 | if (!NILP (overwrite) |
9e4fd67b | 405 | && PT < ZV) |
cd645247 | 406 | { |
9e4fd67b KH |
407 | /* In overwrite-mode, we substitute a character at point (C2, |
408 | hereafter) by C. For that, we delete C2 in advance. But, | |
409 | just substituting C2 by C may move a remaining text in the | |
410 | line to the right or to the left, which is not preferable. | |
411 | So we insert more spaces or delete more characters in the | |
412 | following cases: if C is narrower than C2, after deleting C2, | |
413 | we fill columns with spaces, if C is wider than C2, we delete | |
414 | C2 and several characters following C2. */ | |
415 | ||
216b9443 RS |
416 | /* This is the character after point. */ |
417 | int c2 = FETCH_CHAR (PT_BYTE); | |
418 | ||
419 | /* Column the cursor should be placed at after this insertion. | |
9e4fd67b KH |
420 | The correct value should be calculated only when necessary. */ |
421 | int target_clm = 0; | |
422 | ||
37c0ed09 RS |
423 | /* Overwriting in binary-mode always replaces C2 by C. |
424 | Overwriting in textual-mode doesn't always do that. | |
425 | It inserts newlines in the usual way, | |
426 | and inserts any character at end of line | |
427 | or before a tab if it doesn't use the whole width of the tab. */ | |
9e4fd67b KH |
428 | if (EQ (overwrite, Qoverwrite_mode_binary) |
429 | || (c != '\n' | |
430 | && c2 != '\n' | |
37c0ed09 RS |
431 | && ! (c2 == '\t' |
432 | && XINT (current_buffer->tab_width) > 0 | |
433 | && XFASTINT (current_buffer->tab_width) < 20 | |
a731cae2 | 434 | && (target_clm = ((int) current_column () /* iftc */ |
06d74a65 | 435 | + XINT (Fchar_width (make_number (c)))), |
37c0ed09 | 436 | target_clm % XFASTINT (current_buffer->tab_width))))) |
9e4fd67b | 437 | { |
e744155a | 438 | int pos = PT; |
049749e6 | 439 | int pos_byte = PT_BYTE; |
e744155a | 440 | |
9e4fd67b | 441 | if (target_clm == 0) |
049749e6 | 442 | chars_to_delete = 1; |
9e4fd67b KH |
443 | else |
444 | { | |
9e4fd67b KH |
445 | /* The actual cursor position after the trial of moving |
446 | to column TARGET_CLM. It is greater than TARGET_CLM | |
447 | if the TARGET_CLM is middle of multi-column | |
448 | character. In that case, the new point is set after | |
449 | that character. */ | |
cac55749 RS |
450 | int actual_clm |
451 | = XFASTINT (Fmove_to_column (make_number (target_clm), Qnil)); | |
9e4fd67b | 452 | |
049749e6 | 453 | chars_to_delete = PT - pos; |
e744155a | 454 | |
9e4fd67b KH |
455 | if (actual_clm > target_clm) |
456 | { | |
e744155a | 457 | /* We will delete too many columns. Let's fill columns |
9e4fd67b | 458 | by spaces so that the remaining text won't move. */ |
e744155a | 459 | spaces_to_insert = actual_clm - target_clm; |
9e4fd67b KH |
460 | } |
461 | } | |
049749e6 | 462 | SET_PT_BOTH (pos, pos_byte); |
9e4fd67b KH |
463 | hairy = 2; |
464 | } | |
aa52fef9 | 465 | hairy = 2; |
cd645247 | 466 | } |
265a9e55 | 467 | if (!NILP (current_buffer->abbrev_mode) |
cd645247 | 468 | && SYNTAX (c) != Sword |
265a9e55 | 469 | && NILP (current_buffer->read_only) |
9e4fd67b | 470 | && PT > BEGV && SYNTAX (XFASTINT (Fprevious_char ())) == Sword) |
cd645247 | 471 | { |
ee8caabb | 472 | int modiff = MODIFF; |
e57640c0 RS |
473 | Lisp_Object sym; |
474 | ||
475 | sym = Fexpand_abbrev (); | |
476 | ||
c87dbfd0 | 477 | /* If we expanded an abbrev which has a hook, |
9317a902 | 478 | and the hook has a non-nil `no-self-insert' property, |
e57640c0 | 479 | return right away--don't really self-insert. */ |
9317a902 RS |
480 | if (! NILP (sym) && ! NILP (XSYMBOL (sym)->function) |
481 | && SYMBOLP (XSYMBOL (sym)->function)) | |
e57640c0 RS |
482 | { |
483 | Lisp_Object prop; | |
9317a902 | 484 | prop = Fget (XSYMBOL (sym)->function, intern ("no-self-insert")); |
e57640c0 | 485 | if (! NILP (prop)) |
6787d111 | 486 | return 1; |
e57640c0 RS |
487 | } |
488 | ||
ee8caabb | 489 | if (MODIFF != modiff) |
aa52fef9 | 490 | hairy = 2; |
cd645247 | 491 | } |
e744155a | 492 | |
049749e6 | 493 | if (chars_to_delete) |
e744155a | 494 | { |
f34206b4 | 495 | string = make_string_from_bytes (str, 1, len); |
e744155a RS |
496 | if (spaces_to_insert) |
497 | { | |
498 | tem = Fmake_string (make_number (spaces_to_insert), | |
499 | make_number (' ')); | |
500 | string = concat2 (tem, string); | |
501 | } | |
502 | ||
5f65b1b4 | 503 | replace_range (PT, PT + chars_to_delete, string, 1, 1, 1); |
1bf95511 | 504 | Fforward_char (make_number (1 + spaces_to_insert)); |
e744155a RS |
505 | } |
506 | else | |
507 | insert_and_inherit (str, len); | |
508 | ||
01428933 KH |
509 | if ((CHAR_TABLE_P (Vauto_fill_chars) |
510 | ? !NILP (CHAR_TABLE_REF (Vauto_fill_chars, c)) | |
511 | : (c == ' ' || c == '\n')) | |
cd645247 | 512 | && !noautofill |
3de15b7a | 513 | && !NILP (current_buffer->auto_fill_function)) |
cd645247 | 514 | { |
76bb6dbb KH |
515 | Lisp_Object tem; |
516 | ||
9e4fd67b | 517 | if (c == '\n') |
049749e6 RS |
518 | /* After inserting a newline, move to previous line and fill |
519 | that. Must have the newline in place already so filling and | |
520 | justification, if any, know where the end is going to be. */ | |
521 | SET_PT_BOTH (PT - 1, PT_BYTE - 1); | |
76bb6dbb | 522 | tem = call0 (current_buffer->auto_fill_function); |
9e4fd67b | 523 | if (c == '\n') |
049749e6 | 524 | SET_PT_BOTH (PT + 1, PT_BYTE + 1); |
76bb6dbb KH |
525 | if (!NILP (tem)) |
526 | hairy = 2; | |
cd645247 | 527 | } |
189fad68 RS |
528 | |
529 | /* If previous command specified a face to use, use it. */ | |
530 | if (!NILP (Vself_insert_face) | |
346e0c2d | 531 | && EQ (current_kboard->Vlast_command, Vself_insert_face_command)) |
189fad68 | 532 | { |
049749e6 RS |
533 | Fput_text_property (make_number (PT - 1), make_number (PT), |
534 | Qface, Vself_insert_face, Qnil); | |
189fad68 RS |
535 | Vself_insert_face = Qnil; |
536 | } | |
e744155a | 537 | |
cd645247 JB |
538 | synt = SYNTAX (c); |
539 | if ((synt == Sclose || synt == Smath) | |
2718dfa4 RS |
540 | && !NILP (Vblink_paren_function) && INTERACTIVE |
541 | && !noautofill) | |
cd645247 JB |
542 | { |
543 | call0 (Vblink_paren_function); | |
aa52fef9 | 544 | hairy = 2; |
cd645247 JB |
545 | } |
546 | return hairy; | |
547 | } | |
548 | \f | |
549 | /* module initialization */ | |
550 | ||
dfcf069d | 551 | void |
cd645247 JB |
552 | syms_of_cmds () |
553 | { | |
554 | Qkill_backward_chars = intern ("kill-backward-chars"); | |
555 | staticpro (&Qkill_backward_chars); | |
556 | ||
557 | Qkill_forward_chars = intern ("kill-forward-chars"); | |
558 | staticpro (&Qkill_forward_chars); | |
559 | ||
6bbb0d4a JB |
560 | Qoverwrite_mode_binary = intern ("overwrite-mode-binary"); |
561 | staticpro (&Qoverwrite_mode_binary); | |
e686c647 | 562 | |
189fad68 | 563 | DEFVAR_LISP ("self-insert-face", &Vself_insert_face, |
335c5470 PJ |
564 | doc: /* If non-nil, set the face of the next self-inserting character to this. |
565 | See also `self-insert-face-command'. */); | |
189fad68 RS |
566 | Vself_insert_face = Qnil; |
567 | ||
568 | DEFVAR_LISP ("self-insert-face-command", &Vself_insert_face_command, | |
335c5470 PJ |
569 | doc: /* This is the command that set up `self-insert-face'. |
570 | If `last-command' does not equal this value, we ignore `self-insert-face'. */); | |
189fad68 RS |
571 | Vself_insert_face_command = Qnil; |
572 | ||
cd645247 | 573 | DEFVAR_LISP ("blink-paren-function", &Vblink_paren_function, |
335c5470 PJ |
574 | doc: /* Function called, if non-nil, whenever a close parenthesis is inserted. |
575 | More precisely, a char with closeparen syntax is self-inserted. */); | |
cd645247 JB |
576 | Vblink_paren_function = Qnil; |
577 | ||
9e4fd67b | 578 | defsubr (&Sforward_point); |
cd645247 JB |
579 | defsubr (&Sforward_char); |
580 | defsubr (&Sbackward_char); | |
581 | defsubr (&Sforward_line); | |
582 | defsubr (&Sbeginning_of_line); | |
583 | defsubr (&Send_of_line); | |
584 | ||
585 | defsubr (&Sdelete_char); | |
586 | defsubr (&Sdelete_backward_char); | |
587 | ||
588 | defsubr (&Sself_insert_command); | |
cd645247 JB |
589 | } |
590 | ||
dfcf069d | 591 | void |
cd645247 JB |
592 | keys_of_cmds () |
593 | { | |
594 | int n; | |
595 | ||
cbf65115 | 596 | initial_define_key (global_map, Ctl ('I'), "self-insert-command"); |
cd645247 JB |
597 | for (n = 040; n < 0177; n++) |
598 | initial_define_key (global_map, n, "self-insert-command"); | |
cf9cdc11 RS |
599 | #ifdef MSDOS |
600 | for (n = 0200; n < 0240; n++) | |
601 | initial_define_key (global_map, n, "self-insert-command"); | |
602 | #endif | |
94748cb9 | 603 | for (n = 0240; n < 0400; n++) |
eb46da6a | 604 | initial_define_key (global_map, n, "self-insert-command"); |
cd645247 JB |
605 | |
606 | initial_define_key (global_map, Ctl ('A'), "beginning-of-line"); | |
607 | initial_define_key (global_map, Ctl ('B'), "backward-char"); | |
608 | initial_define_key (global_map, Ctl ('D'), "delete-char"); | |
609 | initial_define_key (global_map, Ctl ('E'), "end-of-line"); | |
610 | initial_define_key (global_map, Ctl ('F'), "forward-char"); | |
611 | initial_define_key (global_map, 0177, "delete-backward-char"); | |
612 | } |