Commit | Line | Data |
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cd645247 | 1 | /* Simple built-in editing commands. |
4a2f9c6a | 2 | Copyright (C) 1985, 93, 94, 95, 96, 97, 1998 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" |
dfcf069d | 30 | #include "dispextern.h" |
cd645247 JB |
31 | |
32 | Lisp_Object Qkill_forward_chars, Qkill_backward_chars, Vblink_paren_function; | |
33 | ||
6bbb0d4a JB |
34 | /* A possible value for a buffer's overwrite-mode variable. */ |
35 | Lisp_Object Qoverwrite_mode_binary; | |
36 | ||
189fad68 RS |
37 | /* Non-nil means put this face on the next self-inserting character. */ |
38 | Lisp_Object Vself_insert_face; | |
39 | ||
40 | /* This is the command that set up Vself_insert_face. */ | |
41 | Lisp_Object Vself_insert_face_command; | |
42 | ||
189fad68 | 43 | extern Lisp_Object Qface; |
cd645247 | 44 | \f |
9e4fd67b KH |
45 | DEFUN ("forward-point", Fforward_point, Sforward_point, 1, 1, 0, |
46 | "Return buffer position N characters after (before if N negative) point.") | |
47 | (n) | |
48 | Lisp_Object n; | |
49 | { | |
50 | CHECK_NUMBER (n, 0); | |
51 | ||
049749e6 | 52 | return make_number (PT + XINT (n)); |
9e4fd67b KH |
53 | } |
54 | ||
cd645247 | 55 | DEFUN ("forward-char", Fforward_char, Sforward_char, 0, 1, "p", |
72d5f589 | 56 | "Move point right N characters (left if N is negative).\n\ |
cd645247 | 57 | On reaching end of buffer, stop and signal error.") |
72d5f589 EN |
58 | (n) |
59 | Lisp_Object n; | |
cd645247 | 60 | { |
72d5f589 EN |
61 | if (NILP (n)) |
62 | XSETFASTINT (n, 1); | |
cd645247 | 63 | else |
72d5f589 | 64 | CHECK_NUMBER (n, 0); |
cd645247 | 65 | |
72d5f589 | 66 | /* This used to just set point to point + XINT (n), and then check |
7b502dc3 JB |
67 | to see if it was within boundaries. But now that SET_PT can |
68 | potentially do a lot of stuff (calling entering and exiting | |
69 | hooks, etcetera), that's not a good approach. So we validate the | |
70 | proposed position, then set point. */ | |
71 | { | |
049749e6 | 72 | int new_point = PT + XINT (n); |
7b502dc3 JB |
73 | |
74 | if (new_point < BEGV) | |
75 | { | |
76 | SET_PT (BEGV); | |
77 | Fsignal (Qbeginning_of_buffer, Qnil); | |
78 | } | |
79 | if (new_point > ZV) | |
80 | { | |
81 | SET_PT (ZV); | |
82 | Fsignal (Qend_of_buffer, Qnil); | |
83 | } | |
84 | ||
85 | SET_PT (new_point); | |
86 | } | |
87 | ||
cd645247 JB |
88 | return Qnil; |
89 | } | |
90 | ||
91 | DEFUN ("backward-char", Fbackward_char, Sbackward_char, 0, 1, "p", | |
72d5f589 | 92 | "Move point left N characters (right if N is negative).\n\ |
cd645247 | 93 | On attempt to pass beginning or end of buffer, stop and signal error.") |
72d5f589 EN |
94 | (n) |
95 | Lisp_Object n; | |
cd645247 | 96 | { |
72d5f589 EN |
97 | if (NILP (n)) |
98 | XSETFASTINT (n, 1); | |
cd645247 | 99 | else |
72d5f589 | 100 | CHECK_NUMBER (n, 0); |
cd645247 | 101 | |
72d5f589 EN |
102 | XSETINT (n, - XINT (n)); |
103 | return Fforward_char (n); | |
cd645247 JB |
104 | } |
105 | ||
106 | DEFUN ("forward-line", Fforward_line, Sforward_line, 0, 1, "p", | |
72d5f589 EN |
107 | "Move N lines forward (backward if N is negative).\n\ |
108 | Precisely, if point is on line I, move to the start of line I + N.\n\ | |
cd645247 JB |
109 | If there isn't room, go as far as possible (no error).\n\ |
110 | Returns the count of lines left to move. If moving forward,\n\ | |
72d5f589 EN |
111 | that is N - number of lines moved; if backward, N + number moved.\n\ |
112 | With positive N, a non-empty line at the end counts as one line\n\ | |
cd645247 JB |
113 | successfully moved (for the return value).") |
114 | (n) | |
115 | Lisp_Object n; | |
116 | { | |
049749e6 RS |
117 | int opoint = PT, opoint_byte = PT_BYTE; |
118 | int pos, pos_byte; | |
119 | int count, shortage; | |
120 | int temp; | |
cd645247 | 121 | |
265a9e55 | 122 | if (NILP (n)) |
cd645247 JB |
123 | count = 1; |
124 | else | |
125 | { | |
126 | CHECK_NUMBER (n, 0); | |
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 | ||
153 | DEFUN ("beginning-of-line", Fbeginning_of_line, Sbeginning_of_line, | |
154 | 0, 1, "p", | |
155 | "Move point to beginning of current line.\n\ | |
72d5f589 | 156 | With argument N not nil or 1, move forward N - 1 lines first.\n\ |
c252ce76 RS |
157 | If point reaches the beginning or end of buffer, it stops there.\n\ |
158 | This command does not move point across a field boundary\n\ | |
159 | unless it would move beyond there to a different line.\n\ | |
160 | If N is nil or 1, and point starts at a field boundary, point does not move.") | |
cd645247 JB |
161 | (n) |
162 | Lisp_Object n; | |
163 | { | |
265a9e55 | 164 | if (NILP (n)) |
48c7cef2 | 165 | XSETFASTINT (n, 1); |
cd645247 JB |
166 | else |
167 | CHECK_NUMBER (n, 0); | |
168 | ||
0aee588d | 169 | SET_PT (XINT (Fline_beginning_position (n))); |
4f13cc99 | 170 | |
cd645247 JB |
171 | return Qnil; |
172 | } | |
173 | ||
174 | DEFUN ("end-of-line", Fend_of_line, Send_of_line, | |
175 | 0, 1, "p", | |
176 | "Move point to end of current line.\n\ | |
72d5f589 | 177 | With argument N not nil or 1, move forward N - 1 lines first.\n\ |
c252ce76 RS |
178 | If point reaches the beginning or end of buffer, it stops there.\n\ |
179 | This command does not move point across a field boundary\n\ | |
180 | unless it would move beyond there to a different line.\n\ | |
181 | If N is nil or 1, and point starts at a field boundary, point does not move.") | |
cd645247 JB |
182 | (n) |
183 | Lisp_Object n; | |
184 | { | |
265a9e55 | 185 | if (NILP (n)) |
48c7cef2 | 186 | XSETFASTINT (n, 1); |
cd645247 JB |
187 | else |
188 | CHECK_NUMBER (n, 0); | |
189 | ||
38b294ca | 190 | SET_PT (XINT (Fline_end_position (n))); |
cd645247 JB |
191 | |
192 | return Qnil; | |
193 | } | |
194 | ||
195 | DEFUN ("delete-char", Fdelete_char, Sdelete_char, 1, 2, "p\nP", | |
72d5f589 | 196 | "Delete the following N characters (previous if N is negative).\n\ |
cd645247 | 197 | Optional second arg KILLFLAG non-nil means kill instead (save in kill ring).\n\ |
72d5f589 EN |
198 | Interactively, N is the prefix arg, and KILLFLAG is set if\n\ |
199 | N was explicitly specified.") | |
cd645247 JB |
200 | (n, killflag) |
201 | Lisp_Object n, killflag; | |
202 | { | |
9e4fd67b KH |
203 | int pos; |
204 | ||
cd645247 JB |
205 | CHECK_NUMBER (n, 0); |
206 | ||
049749e6 | 207 | pos = PT + XINT (n); |
265a9e55 | 208 | if (NILP (killflag)) |
cd645247 JB |
209 | { |
210 | if (XINT (n) < 0) | |
211 | { | |
9e4fd67b | 212 | if (pos < BEGV) |
cd645247 JB |
213 | Fsignal (Qbeginning_of_buffer, Qnil); |
214 | else | |
9e4fd67b | 215 | del_range (pos, PT); |
cd645247 JB |
216 | } |
217 | else | |
218 | { | |
9e4fd67b | 219 | if (pos > ZV) |
cd645247 JB |
220 | Fsignal (Qend_of_buffer, Qnil); |
221 | else | |
9e4fd67b | 222 | del_range (PT, pos); |
cd645247 JB |
223 | } |
224 | } | |
225 | else | |
226 | { | |
227 | call1 (Qkill_forward_chars, n); | |
228 | } | |
229 | return Qnil; | |
230 | } | |
231 | ||
232 | DEFUN ("delete-backward-char", Fdelete_backward_char, Sdelete_backward_char, | |
233 | 1, 2, "p\nP", | |
72d5f589 | 234 | "Delete the previous N characters (following if N is negative).\n\ |
cd645247 | 235 | Optional second arg KILLFLAG non-nil means kill instead (save in kill ring).\n\ |
72d5f589 EN |
236 | Interactively, N is the prefix arg, and KILLFLAG is set if\n\ |
237 | N was explicitly specified.") | |
cd645247 JB |
238 | (n, killflag) |
239 | Lisp_Object n, killflag; | |
240 | { | |
aa970069 | 241 | Lisp_Object value; |
7c983171 | 242 | int deleted_special = 0; |
ceb7e4f8 | 243 | int pos, pos_byte, i; |
aa970069 | 244 | |
cd645247 | 245 | CHECK_NUMBER (n, 0); |
aa970069 | 246 | |
7c983171 | 247 | /* See if we are about to delete a tab or newline backwards. */ |
ceb7e4f8 KH |
248 | pos = PT; |
249 | pos_byte = PT_BYTE; | |
250 | for (i = 0; i < XINT (n) && pos_byte > BEGV_BYTE; i++) | |
aa970069 | 251 | { |
9e4fd67b KH |
252 | int c; |
253 | ||
ceb7e4f8 KH |
254 | DEC_BOTH (pos, pos_byte); |
255 | c = FETCH_BYTE (pos_byte); | |
9e4fd67b | 256 | if (c == '\t' || c == '\n') |
aa970069 | 257 | { |
7c983171 | 258 | deleted_special = 1; |
aa970069 RS |
259 | break; |
260 | } | |
261 | } | |
262 | ||
aa970069 RS |
263 | /* In overwrite mode, back over columns while clearing them out, |
264 | unless at end of line. */ | |
265 | if (XINT (n) > 0 | |
266 | && ! NILP (current_buffer->overwrite_mode) | |
7c983171 | 267 | && ! deleted_special |
049749e6 | 268 | && ! (PT == ZV || FETCH_BYTE (PT_BYTE) == '\n')) |
aa970069 | 269 | { |
9e4fd67b KH |
270 | int column = current_column (); |
271 | ||
272 | value = Fdelete_char (make_number (-XINT (n)), killflag); | |
273 | i = column - current_column (); | |
cac55749 | 274 | Finsert_char (make_number (' '), make_number (i), Qnil); |
049749e6 RS |
275 | /* Whitespace chars are ASCII chars, so we can simply subtract. */ |
276 | SET_PT_BOTH (PT - i, PT_BYTE - i); | |
aa970069 | 277 | } |
9e4fd67b KH |
278 | else |
279 | value = Fdelete_char (make_number (-XINT (n)), killflag); | |
aa970069 RS |
280 | |
281 | return value; | |
cd645247 JB |
282 | } |
283 | ||
284 | DEFUN ("self-insert-command", Fself_insert_command, Sself_insert_command, 1, 1, "p", | |
285 | "Insert the character you type.\n\ | |
286 | Whichever character you type to run this command is inserted.") | |
72d5f589 EN |
287 | (n) |
288 | Lisp_Object n; | |
cd645247 | 289 | { |
a22ca1e0 RS |
290 | int character = XINT (last_command_char); |
291 | ||
72d5f589 | 292 | CHECK_NUMBER (n, 0); |
cd645247 JB |
293 | |
294 | /* Barf if the key that invoked this was not a character. */ | |
ed76f667 | 295 | if (!INTEGERP (last_command_char)) |
cd645247 | 296 | bitch_at_user (); |
72d5f589 | 297 | else if (XINT (n) >= 2 && NILP (current_buffer->overwrite_mode)) |
2718dfa4 | 298 | { |
a22ca1e0 RS |
299 | int modified_char = character; |
300 | /* Add the offset to the character, for Finsert_char. | |
301 | We pass internal_self_insert the unmodified character | |
302 | because it itself does this offsetting. */ | |
49bc32b0 RS |
303 | if (! NILP (current_buffer->enable_multibyte_characters)) |
304 | modified_char = unibyte_char_to_multibyte (modified_char); | |
a22ca1e0 | 305 | |
72d5f589 | 306 | XSETFASTINT (n, XFASTINT (n) - 2); |
2718dfa4 | 307 | /* The first one might want to expand an abbrev. */ |
a22ca1e0 | 308 | internal_self_insert (character, 1); |
2718dfa4 RS |
309 | /* The bulk of the copies of this char can be inserted simply. |
310 | We don't have to handle a user-specified face specially | |
311 | because it will get inherited from the first char inserted. */ | |
a22ca1e0 | 312 | Finsert_char (make_number (modified_char), n, Qt); |
2718dfa4 | 313 | /* The last one might want to auto-fill. */ |
a22ca1e0 | 314 | internal_self_insert (character, 0); |
2718dfa4 | 315 | } |
cd645247 | 316 | else |
72d5f589 | 317 | while (XINT (n) > 0) |
cd645247 | 318 | { |
f58dd69b | 319 | /* Ok since old and new vals both nonneg */ |
72d5f589 | 320 | XSETFASTINT (n, XFASTINT (n) - 1); |
a22ca1e0 | 321 | internal_self_insert (character, XFASTINT (n) != 0); |
cd645247 JB |
322 | } |
323 | ||
324 | return Qnil; | |
325 | } | |
326 | ||
9e4fd67b | 327 | /* Insert character C. If NOAUTOFILL is nonzero, don't do autofill |
4c6e656f RS |
328 | even if it is enabled. |
329 | ||
330 | If this insertion is suitable for direct output (completely simple), | |
aa52fef9 RS |
331 | return 0. A value of 1 indicates this *might* not have been simple. |
332 | A value of 2 means this did things that call for an undo boundary. */ | |
4c6e656f | 333 | |
dfcf069d | 334 | int |
9e4fd67b KH |
335 | internal_self_insert (c, noautofill) |
336 | int c; | |
cd645247 JB |
337 | int noautofill; |
338 | { | |
339 | extern Lisp_Object Fexpand_abbrev (); | |
340 | int hairy = 0; | |
341 | Lisp_Object tem; | |
342 | register enum syntaxcode synt; | |
e744155a | 343 | Lisp_Object overwrite, string; |
9e4fd67b KH |
344 | /* Length of multi-byte form of C. */ |
345 | int len; | |
346 | /* Working buffer and pointer for multi-byte form of C. */ | |
e55d9cfd | 347 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
049749e6 | 348 | int chars_to_delete = 0; |
e744155a | 349 | int spaces_to_insert = 0; |
cd645247 | 350 | |
e7aacab7 | 351 | overwrite = current_buffer->overwrite_mode; |
166a4263 RS |
352 | if (!NILP (Vbefore_change_function) || !NILP (Vafter_change_function) |
353 | || !NILP (Vbefore_change_functions) || !NILP (Vafter_change_functions)) | |
cd645247 JB |
354 | hairy = 1; |
355 | ||
9e4fd67b KH |
356 | /* At first, get multi-byte form of C in STR. */ |
357 | if (!NILP (current_buffer->enable_multibyte_characters)) | |
b9859007 KH |
358 | { |
359 | c = unibyte_char_to_multibyte (c); | |
e55d9cfd | 360 | len = CHAR_STRING (c, str); |
741263c2 KH |
361 | if (len == 1) |
362 | /* If C has modifier bits, this makes C an appropriate | |
363 | one-byte char. */ | |
364 | c = *str; | |
b9859007 | 365 | } |
9e4fd67b | 366 | else |
38b62842 | 367 | { |
e55d9cfd KH |
368 | str[0] = (SINGLE_BYTE_CHAR_P (c) |
369 | ? c | |
370 | : multibyte_char_to_unibyte (c, Qnil)); | |
38b62842 KH |
371 | len = 1; |
372 | } | |
6bbb0d4a | 373 | if (!NILP (overwrite) |
9e4fd67b | 374 | && PT < ZV) |
cd645247 | 375 | { |
9e4fd67b KH |
376 | /* In overwrite-mode, we substitute a character at point (C2, |
377 | hereafter) by C. For that, we delete C2 in advance. But, | |
378 | just substituting C2 by C may move a remaining text in the | |
379 | line to the right or to the left, which is not preferable. | |
380 | So we insert more spaces or delete more characters in the | |
381 | following cases: if C is narrower than C2, after deleting C2, | |
382 | we fill columns with spaces, if C is wider than C2, we delete | |
383 | C2 and several characters following C2. */ | |
384 | ||
216b9443 RS |
385 | /* This is the character after point. */ |
386 | int c2 = FETCH_CHAR (PT_BYTE); | |
387 | ||
388 | /* Column the cursor should be placed at after this insertion. | |
9e4fd67b KH |
389 | The correct value should be calculated only when necessary. */ |
390 | int target_clm = 0; | |
391 | ||
37c0ed09 RS |
392 | /* Overwriting in binary-mode always replaces C2 by C. |
393 | Overwriting in textual-mode doesn't always do that. | |
394 | It inserts newlines in the usual way, | |
395 | and inserts any character at end of line | |
396 | or before a tab if it doesn't use the whole width of the tab. */ | |
9e4fd67b KH |
397 | if (EQ (overwrite, Qoverwrite_mode_binary) |
398 | || (c != '\n' | |
399 | && c2 != '\n' | |
37c0ed09 RS |
400 | && ! (c2 == '\t' |
401 | && XINT (current_buffer->tab_width) > 0 | |
402 | && XFASTINT (current_buffer->tab_width) < 20 | |
216b9443 | 403 | && (target_clm = (current_column () |
06d74a65 | 404 | + XINT (Fchar_width (make_number (c)))), |
37c0ed09 | 405 | target_clm % XFASTINT (current_buffer->tab_width))))) |
9e4fd67b | 406 | { |
e744155a | 407 | int pos = PT; |
049749e6 | 408 | int pos_byte = PT_BYTE; |
e744155a | 409 | |
9e4fd67b | 410 | if (target_clm == 0) |
049749e6 | 411 | chars_to_delete = 1; |
9e4fd67b KH |
412 | else |
413 | { | |
9e4fd67b KH |
414 | /* The actual cursor position after the trial of moving |
415 | to column TARGET_CLM. It is greater than TARGET_CLM | |
416 | if the TARGET_CLM is middle of multi-column | |
417 | character. In that case, the new point is set after | |
418 | that character. */ | |
cac55749 RS |
419 | int actual_clm |
420 | = XFASTINT (Fmove_to_column (make_number (target_clm), Qnil)); | |
9e4fd67b | 421 | |
049749e6 | 422 | chars_to_delete = PT - pos; |
e744155a | 423 | |
9e4fd67b KH |
424 | if (actual_clm > target_clm) |
425 | { | |
e744155a | 426 | /* We will delete too many columns. Let's fill columns |
9e4fd67b | 427 | by spaces so that the remaining text won't move. */ |
e744155a | 428 | spaces_to_insert = actual_clm - target_clm; |
9e4fd67b KH |
429 | } |
430 | } | |
049749e6 | 431 | SET_PT_BOTH (pos, pos_byte); |
9e4fd67b KH |
432 | hairy = 2; |
433 | } | |
aa52fef9 | 434 | hairy = 2; |
cd645247 | 435 | } |
265a9e55 | 436 | if (!NILP (current_buffer->abbrev_mode) |
cd645247 | 437 | && SYNTAX (c) != Sword |
265a9e55 | 438 | && NILP (current_buffer->read_only) |
9e4fd67b | 439 | && PT > BEGV && SYNTAX (XFASTINT (Fprevious_char ())) == Sword) |
cd645247 | 440 | { |
ee8caabb | 441 | int modiff = MODIFF; |
e57640c0 RS |
442 | Lisp_Object sym; |
443 | ||
444 | sym = Fexpand_abbrev (); | |
445 | ||
446 | /* If we expanded an abbrev which has only a hook, | |
9317a902 | 447 | and the hook has a non-nil `no-self-insert' property, |
e57640c0 | 448 | return right away--don't really self-insert. */ |
9317a902 RS |
449 | if (! NILP (sym) && ! NILP (XSYMBOL (sym)->function) |
450 | && SYMBOLP (XSYMBOL (sym)->function)) | |
e57640c0 RS |
451 | { |
452 | Lisp_Object prop; | |
9317a902 | 453 | prop = Fget (XSYMBOL (sym)->function, intern ("no-self-insert")); |
e57640c0 | 454 | if (! NILP (prop)) |
6787d111 | 455 | return 1; |
e57640c0 RS |
456 | } |
457 | ||
ee8caabb | 458 | if (MODIFF != modiff) |
aa52fef9 | 459 | hairy = 2; |
cd645247 | 460 | } |
e744155a | 461 | |
049749e6 | 462 | if (chars_to_delete) |
e744155a | 463 | { |
f34206b4 | 464 | string = make_string_from_bytes (str, 1, len); |
e744155a RS |
465 | if (spaces_to_insert) |
466 | { | |
467 | tem = Fmake_string (make_number (spaces_to_insert), | |
468 | make_number (' ')); | |
469 | string = concat2 (tem, string); | |
470 | } | |
471 | ||
5f65b1b4 | 472 | replace_range (PT, PT + chars_to_delete, string, 1, 1, 1); |
1bf95511 | 473 | Fforward_char (make_number (1 + spaces_to_insert)); |
e744155a RS |
474 | } |
475 | else | |
476 | insert_and_inherit (str, len); | |
477 | ||
01428933 KH |
478 | if ((CHAR_TABLE_P (Vauto_fill_chars) |
479 | ? !NILP (CHAR_TABLE_REF (Vauto_fill_chars, c)) | |
480 | : (c == ' ' || c == '\n')) | |
cd645247 | 481 | && !noautofill |
3de15b7a | 482 | && !NILP (current_buffer->auto_fill_function)) |
cd645247 | 483 | { |
76bb6dbb KH |
484 | Lisp_Object tem; |
485 | ||
9e4fd67b | 486 | if (c == '\n') |
049749e6 RS |
487 | /* After inserting a newline, move to previous line and fill |
488 | that. Must have the newline in place already so filling and | |
489 | justification, if any, know where the end is going to be. */ | |
490 | SET_PT_BOTH (PT - 1, PT_BYTE - 1); | |
76bb6dbb | 491 | tem = call0 (current_buffer->auto_fill_function); |
9e4fd67b | 492 | if (c == '\n') |
049749e6 | 493 | SET_PT_BOTH (PT + 1, PT_BYTE + 1); |
76bb6dbb KH |
494 | if (!NILP (tem)) |
495 | hairy = 2; | |
cd645247 | 496 | } |
189fad68 | 497 | |
38d404db | 498 | #ifdef HAVE_FACES |
189fad68 RS |
499 | /* If previous command specified a face to use, use it. */ |
500 | if (!NILP (Vself_insert_face) | |
346e0c2d | 501 | && EQ (current_kboard->Vlast_command, Vself_insert_face_command)) |
189fad68 | 502 | { |
049749e6 RS |
503 | Fput_text_property (make_number (PT - 1), make_number (PT), |
504 | Qface, Vself_insert_face, Qnil); | |
189fad68 RS |
505 | Vself_insert_face = Qnil; |
506 | } | |
38d404db | 507 | #endif |
e744155a | 508 | |
cd645247 JB |
509 | synt = SYNTAX (c); |
510 | if ((synt == Sclose || synt == Smath) | |
2718dfa4 RS |
511 | && !NILP (Vblink_paren_function) && INTERACTIVE |
512 | && !noautofill) | |
cd645247 JB |
513 | { |
514 | call0 (Vblink_paren_function); | |
aa52fef9 | 515 | hairy = 2; |
cd645247 JB |
516 | } |
517 | return hairy; | |
518 | } | |
519 | \f | |
520 | /* module initialization */ | |
521 | ||
dfcf069d | 522 | void |
cd645247 JB |
523 | syms_of_cmds () |
524 | { | |
525 | Qkill_backward_chars = intern ("kill-backward-chars"); | |
526 | staticpro (&Qkill_backward_chars); | |
527 | ||
528 | Qkill_forward_chars = intern ("kill-forward-chars"); | |
529 | staticpro (&Qkill_forward_chars); | |
530 | ||
6bbb0d4a JB |
531 | Qoverwrite_mode_binary = intern ("overwrite-mode-binary"); |
532 | staticpro (&Qoverwrite_mode_binary); | |
e686c647 | 533 | |
189fad68 RS |
534 | DEFVAR_LISP ("self-insert-face", &Vself_insert_face, |
535 | "If non-nil, set the face of the next self-inserting character to this.\n\ | |
536 | See also `self-insert-face-command'."); | |
537 | Vself_insert_face = Qnil; | |
538 | ||
539 | DEFVAR_LISP ("self-insert-face-command", &Vself_insert_face_command, | |
540 | "This is the command that set up `self-insert-face'.\n\ | |
541 | If `last-command' does not equal this value, we ignore `self-insert-face'."); | |
542 | Vself_insert_face_command = Qnil; | |
543 | ||
cd645247 JB |
544 | DEFVAR_LISP ("blink-paren-function", &Vblink_paren_function, |
545 | "Function called, if non-nil, whenever a close parenthesis is inserted.\n\ | |
546 | More precisely, a char with closeparen syntax is self-inserted."); | |
547 | Vblink_paren_function = Qnil; | |
548 | ||
9e4fd67b | 549 | defsubr (&Sforward_point); |
cd645247 JB |
550 | defsubr (&Sforward_char); |
551 | defsubr (&Sbackward_char); | |
552 | defsubr (&Sforward_line); | |
553 | defsubr (&Sbeginning_of_line); | |
554 | defsubr (&Send_of_line); | |
555 | ||
556 | defsubr (&Sdelete_char); | |
557 | defsubr (&Sdelete_backward_char); | |
558 | ||
559 | defsubr (&Sself_insert_command); | |
cd645247 JB |
560 | } |
561 | ||
dfcf069d | 562 | void |
cd645247 JB |
563 | keys_of_cmds () |
564 | { | |
565 | int n; | |
566 | ||
cbf65115 | 567 | initial_define_key (global_map, Ctl ('I'), "self-insert-command"); |
cd645247 JB |
568 | for (n = 040; n < 0177; n++) |
569 | initial_define_key (global_map, n, "self-insert-command"); | |
cf9cdc11 RS |
570 | #ifdef MSDOS |
571 | for (n = 0200; n < 0240; n++) | |
572 | initial_define_key (global_map, n, "self-insert-command"); | |
573 | #endif | |
94748cb9 | 574 | for (n = 0240; n < 0400; n++) |
eb46da6a | 575 | initial_define_key (global_map, n, "self-insert-command"); |
cd645247 JB |
576 | |
577 | initial_define_key (global_map, Ctl ('A'), "beginning-of-line"); | |
578 | initial_define_key (global_map, Ctl ('B'), "backward-char"); | |
579 | initial_define_key (global_map, Ctl ('D'), "delete-char"); | |
580 | initial_define_key (global_map, Ctl ('E'), "end-of-line"); | |
581 | initial_define_key (global_map, Ctl ('F'), "forward-char"); | |
582 | initial_define_key (global_map, 0177, "delete-backward-char"); | |
583 | } |