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 KH |
46 | DEFUN ("forward-point", Fforward_point, Sforward_point, 1, 1, 0, |
47 | "Return buffer position N characters after (before if N negative) point.") | |
48 | (n) | |
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", |
72d5f589 | 57 | "Move point right N characters (left if N is negative).\n\ |
cd645247 | 58 | On reaching end of buffer, stop and signal error.") |
72d5f589 EN |
59 | (n) |
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", | |
72d5f589 | 93 | "Move point left N characters (right if N is negative).\n\ |
cd645247 | 94 | On attempt to pass beginning or end of buffer, stop and signal error.") |
72d5f589 EN |
95 | (n) |
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", | |
72d5f589 EN |
108 | "Move N lines forward (backward if N is negative).\n\ |
109 | Precisely, if point is on line I, move to the start of line I + N.\n\ | |
cd645247 JB |
110 | If there isn't room, go as far as possible (no error).\n\ |
111 | Returns the count of lines left to move. If moving forward,\n\ | |
72d5f589 EN |
112 | that is N - number of lines moved; if backward, N + number moved.\n\ |
113 | With positive N, a non-empty line at the end counts as one line\n\ | |
cd645247 JB |
114 | successfully moved (for the return value).") |
115 | (n) | |
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 | |
164 | boundaries. */) | |
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))); |
4f13cc99 | 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. | |
182 | ||
183 | This command does not move point across a field boundary unless doing so | |
184 | would move beyond there to a different line; if N is nil or 1, and | |
185 | point starts at a field boundary, point does not move. To ignore field | |
186 | boundaries bind `inhibit-field-text-motion' to t. */) | |
187 | (n) | |
cd645247 JB |
188 | Lisp_Object n; |
189 | { | |
265a9e55 | 190 | if (NILP (n)) |
48c7cef2 | 191 | XSETFASTINT (n, 1); |
cd645247 | 192 | else |
b7826503 | 193 | CHECK_NUMBER (n); |
cd645247 | 194 | |
38b294ca | 195 | SET_PT (XINT (Fline_end_position (n))); |
cd645247 JB |
196 | |
197 | return Qnil; | |
198 | } | |
199 | ||
200 | DEFUN ("delete-char", Fdelete_char, Sdelete_char, 1, 2, "p\nP", | |
72d5f589 | 201 | "Delete the following N characters (previous if N is negative).\n\ |
cd645247 | 202 | Optional second arg KILLFLAG non-nil means kill instead (save in kill ring).\n\ |
72d5f589 EN |
203 | Interactively, N is the prefix arg, and KILLFLAG is set if\n\ |
204 | N was explicitly specified.") | |
cd645247 JB |
205 | (n, killflag) |
206 | Lisp_Object n, killflag; | |
207 | { | |
9e4fd67b KH |
208 | int pos; |
209 | ||
b7826503 | 210 | CHECK_NUMBER (n); |
cd645247 | 211 | |
049749e6 | 212 | pos = PT + XINT (n); |
265a9e55 | 213 | if (NILP (killflag)) |
cd645247 JB |
214 | { |
215 | if (XINT (n) < 0) | |
216 | { | |
9e4fd67b | 217 | if (pos < BEGV) |
cd645247 JB |
218 | Fsignal (Qbeginning_of_buffer, Qnil); |
219 | else | |
9e4fd67b | 220 | del_range (pos, PT); |
cd645247 JB |
221 | } |
222 | else | |
223 | { | |
9e4fd67b | 224 | if (pos > ZV) |
cd645247 JB |
225 | Fsignal (Qend_of_buffer, Qnil); |
226 | else | |
9e4fd67b | 227 | del_range (PT, pos); |
cd645247 JB |
228 | } |
229 | } | |
230 | else | |
231 | { | |
232 | call1 (Qkill_forward_chars, n); | |
233 | } | |
234 | return Qnil; | |
235 | } | |
236 | ||
237 | DEFUN ("delete-backward-char", Fdelete_backward_char, Sdelete_backward_char, | |
238 | 1, 2, "p\nP", | |
72d5f589 | 239 | "Delete the previous N characters (following if N is negative).\n\ |
cd645247 | 240 | Optional second arg KILLFLAG non-nil means kill instead (save in kill ring).\n\ |
72d5f589 EN |
241 | Interactively, N is the prefix arg, and KILLFLAG is set if\n\ |
242 | N was explicitly specified.") | |
cd645247 JB |
243 | (n, killflag) |
244 | Lisp_Object n, killflag; | |
245 | { | |
aa970069 | 246 | Lisp_Object value; |
7c983171 | 247 | int deleted_special = 0; |
ceb7e4f8 | 248 | int pos, pos_byte, i; |
aa970069 | 249 | |
b7826503 | 250 | CHECK_NUMBER (n); |
aa970069 | 251 | |
7c983171 | 252 | /* See if we are about to delete a tab or newline backwards. */ |
ceb7e4f8 KH |
253 | pos = PT; |
254 | pos_byte = PT_BYTE; | |
255 | for (i = 0; i < XINT (n) && pos_byte > BEGV_BYTE; i++) | |
aa970069 | 256 | { |
9e4fd67b KH |
257 | int c; |
258 | ||
ceb7e4f8 KH |
259 | DEC_BOTH (pos, pos_byte); |
260 | c = FETCH_BYTE (pos_byte); | |
9e4fd67b | 261 | if (c == '\t' || c == '\n') |
aa970069 | 262 | { |
7c983171 | 263 | deleted_special = 1; |
aa970069 RS |
264 | break; |
265 | } | |
266 | } | |
267 | ||
aa970069 RS |
268 | /* In overwrite mode, back over columns while clearing them out, |
269 | unless at end of line. */ | |
270 | if (XINT (n) > 0 | |
271 | && ! NILP (current_buffer->overwrite_mode) | |
7c983171 | 272 | && ! deleted_special |
049749e6 | 273 | && ! (PT == ZV || FETCH_BYTE (PT_BYTE) == '\n')) |
aa970069 | 274 | { |
9e4fd67b KH |
275 | int column = current_column (); |
276 | ||
277 | value = Fdelete_char (make_number (-XINT (n)), killflag); | |
278 | i = column - current_column (); | |
cac55749 | 279 | Finsert_char (make_number (' '), make_number (i), Qnil); |
049749e6 RS |
280 | /* Whitespace chars are ASCII chars, so we can simply subtract. */ |
281 | SET_PT_BOTH (PT - i, PT_BYTE - i); | |
aa970069 | 282 | } |
9e4fd67b KH |
283 | else |
284 | value = Fdelete_char (make_number (-XINT (n)), killflag); | |
aa970069 RS |
285 | |
286 | return value; | |
cd645247 JB |
287 | } |
288 | ||
289 | DEFUN ("self-insert-command", Fself_insert_command, Sself_insert_command, 1, 1, "p", | |
290 | "Insert the character you type.\n\ | |
291 | Whichever character you type to run this command is inserted.") | |
72d5f589 EN |
292 | (n) |
293 | Lisp_Object n; | |
cd645247 | 294 | { |
a22ca1e0 RS |
295 | int character = XINT (last_command_char); |
296 | ||
b7826503 | 297 | CHECK_NUMBER (n); |
cd645247 JB |
298 | |
299 | /* Barf if the key that invoked this was not a character. */ | |
ed76f667 | 300 | if (!INTEGERP (last_command_char)) |
cd645247 | 301 | bitch_at_user (); |
72d5f589 | 302 | else if (XINT (n) >= 2 && NILP (current_buffer->overwrite_mode)) |
2718dfa4 | 303 | { |
a22ca1e0 RS |
304 | int modified_char = character; |
305 | /* Add the offset to the character, for Finsert_char. | |
306 | We pass internal_self_insert the unmodified character | |
307 | because it itself does this offsetting. */ | |
49bc32b0 RS |
308 | if (! NILP (current_buffer->enable_multibyte_characters)) |
309 | modified_char = unibyte_char_to_multibyte (modified_char); | |
a22ca1e0 | 310 | |
72d5f589 | 311 | XSETFASTINT (n, XFASTINT (n) - 2); |
2718dfa4 | 312 | /* The first one might want to expand an abbrev. */ |
a22ca1e0 | 313 | internal_self_insert (character, 1); |
2718dfa4 RS |
314 | /* The bulk of the copies of this char can be inserted simply. |
315 | We don't have to handle a user-specified face specially | |
316 | because it will get inherited from the first char inserted. */ | |
a22ca1e0 | 317 | Finsert_char (make_number (modified_char), n, Qt); |
2718dfa4 | 318 | /* The last one might want to auto-fill. */ |
a22ca1e0 | 319 | internal_self_insert (character, 0); |
2718dfa4 | 320 | } |
cd645247 | 321 | else |
72d5f589 | 322 | while (XINT (n) > 0) |
cd645247 | 323 | { |
f58dd69b | 324 | /* Ok since old and new vals both nonneg */ |
72d5f589 | 325 | XSETFASTINT (n, XFASTINT (n) - 1); |
a22ca1e0 | 326 | internal_self_insert (character, XFASTINT (n) != 0); |
cd645247 JB |
327 | } |
328 | ||
329 | return Qnil; | |
330 | } | |
331 | ||
9e4fd67b | 332 | /* Insert character C. If NOAUTOFILL is nonzero, don't do autofill |
4c6e656f RS |
333 | even if it is enabled. |
334 | ||
335 | If this insertion is suitable for direct output (completely simple), | |
aa52fef9 RS |
336 | return 0. A value of 1 indicates this *might* not have been simple. |
337 | A value of 2 means this did things that call for an undo boundary. */ | |
4c6e656f | 338 | |
dfcf069d | 339 | int |
9e4fd67b KH |
340 | internal_self_insert (c, noautofill) |
341 | int c; | |
cd645247 JB |
342 | int noautofill; |
343 | { | |
344 | extern Lisp_Object Fexpand_abbrev (); | |
345 | int hairy = 0; | |
346 | Lisp_Object tem; | |
347 | register enum syntaxcode synt; | |
e744155a | 348 | Lisp_Object overwrite, string; |
9e4fd67b KH |
349 | /* Length of multi-byte form of C. */ |
350 | int len; | |
351 | /* Working buffer and pointer for multi-byte form of C. */ | |
e55d9cfd | 352 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
049749e6 | 353 | int chars_to_delete = 0; |
e744155a | 354 | int spaces_to_insert = 0; |
cd645247 | 355 | |
e7aacab7 | 356 | overwrite = current_buffer->overwrite_mode; |
ad44dffe | 357 | if (!NILP (Vbefore_change_functions) || !NILP (Vafter_change_functions)) |
cd645247 JB |
358 | hairy = 1; |
359 | ||
9e4fd67b KH |
360 | /* At first, get multi-byte form of C in STR. */ |
361 | if (!NILP (current_buffer->enable_multibyte_characters)) | |
b9859007 KH |
362 | { |
363 | c = unibyte_char_to_multibyte (c); | |
e55d9cfd | 364 | len = CHAR_STRING (c, str); |
741263c2 KH |
365 | if (len == 1) |
366 | /* If C has modifier bits, this makes C an appropriate | |
367 | one-byte char. */ | |
368 | c = *str; | |
b9859007 | 369 | } |
9e4fd67b | 370 | else |
38b62842 | 371 | { |
e55d9cfd KH |
372 | str[0] = (SINGLE_BYTE_CHAR_P (c) |
373 | ? c | |
374 | : multibyte_char_to_unibyte (c, Qnil)); | |
38b62842 KH |
375 | len = 1; |
376 | } | |
6bbb0d4a | 377 | if (!NILP (overwrite) |
9e4fd67b | 378 | && PT < ZV) |
cd645247 | 379 | { |
9e4fd67b KH |
380 | /* In overwrite-mode, we substitute a character at point (C2, |
381 | hereafter) by C. For that, we delete C2 in advance. But, | |
382 | just substituting C2 by C may move a remaining text in the | |
383 | line to the right or to the left, which is not preferable. | |
384 | So we insert more spaces or delete more characters in the | |
385 | following cases: if C is narrower than C2, after deleting C2, | |
386 | we fill columns with spaces, if C is wider than C2, we delete | |
387 | C2 and several characters following C2. */ | |
388 | ||
216b9443 RS |
389 | /* This is the character after point. */ |
390 | int c2 = FETCH_CHAR (PT_BYTE); | |
391 | ||
392 | /* Column the cursor should be placed at after this insertion. | |
9e4fd67b KH |
393 | The correct value should be calculated only when necessary. */ |
394 | int target_clm = 0; | |
395 | ||
37c0ed09 RS |
396 | /* Overwriting in binary-mode always replaces C2 by C. |
397 | Overwriting in textual-mode doesn't always do that. | |
398 | It inserts newlines in the usual way, | |
399 | and inserts any character at end of line | |
400 | or before a tab if it doesn't use the whole width of the tab. */ | |
9e4fd67b KH |
401 | if (EQ (overwrite, Qoverwrite_mode_binary) |
402 | || (c != '\n' | |
403 | && c2 != '\n' | |
37c0ed09 RS |
404 | && ! (c2 == '\t' |
405 | && XINT (current_buffer->tab_width) > 0 | |
406 | && XFASTINT (current_buffer->tab_width) < 20 | |
216b9443 | 407 | && (target_clm = (current_column () |
06d74a65 | 408 | + XINT (Fchar_width (make_number (c)))), |
37c0ed09 | 409 | target_clm % XFASTINT (current_buffer->tab_width))))) |
9e4fd67b | 410 | { |
e744155a | 411 | int pos = PT; |
049749e6 | 412 | int pos_byte = PT_BYTE; |
e744155a | 413 | |
9e4fd67b | 414 | if (target_clm == 0) |
049749e6 | 415 | chars_to_delete = 1; |
9e4fd67b KH |
416 | else |
417 | { | |
9e4fd67b KH |
418 | /* The actual cursor position after the trial of moving |
419 | to column TARGET_CLM. It is greater than TARGET_CLM | |
420 | if the TARGET_CLM is middle of multi-column | |
421 | character. In that case, the new point is set after | |
422 | that character. */ | |
cac55749 RS |
423 | int actual_clm |
424 | = XFASTINT (Fmove_to_column (make_number (target_clm), Qnil)); | |
9e4fd67b | 425 | |
049749e6 | 426 | chars_to_delete = PT - pos; |
e744155a | 427 | |
9e4fd67b KH |
428 | if (actual_clm > target_clm) |
429 | { | |
e744155a | 430 | /* We will delete too many columns. Let's fill columns |
9e4fd67b | 431 | by spaces so that the remaining text won't move. */ |
e744155a | 432 | spaces_to_insert = actual_clm - target_clm; |
9e4fd67b KH |
433 | } |
434 | } | |
049749e6 | 435 | SET_PT_BOTH (pos, pos_byte); |
9e4fd67b KH |
436 | hairy = 2; |
437 | } | |
aa52fef9 | 438 | hairy = 2; |
cd645247 | 439 | } |
265a9e55 | 440 | if (!NILP (current_buffer->abbrev_mode) |
cd645247 | 441 | && SYNTAX (c) != Sword |
265a9e55 | 442 | && NILP (current_buffer->read_only) |
9e4fd67b | 443 | && PT > BEGV && SYNTAX (XFASTINT (Fprevious_char ())) == Sword) |
cd645247 | 444 | { |
ee8caabb | 445 | int modiff = MODIFF; |
e57640c0 RS |
446 | Lisp_Object sym; |
447 | ||
448 | sym = Fexpand_abbrev (); | |
449 | ||
c87dbfd0 | 450 | /* If we expanded an abbrev which has a hook, |
9317a902 | 451 | and the hook has a non-nil `no-self-insert' property, |
e57640c0 | 452 | return right away--don't really self-insert. */ |
9317a902 RS |
453 | if (! NILP (sym) && ! NILP (XSYMBOL (sym)->function) |
454 | && SYMBOLP (XSYMBOL (sym)->function)) | |
e57640c0 RS |
455 | { |
456 | Lisp_Object prop; | |
9317a902 | 457 | prop = Fget (XSYMBOL (sym)->function, intern ("no-self-insert")); |
e57640c0 | 458 | if (! NILP (prop)) |
6787d111 | 459 | return 1; |
e57640c0 RS |
460 | } |
461 | ||
ee8caabb | 462 | if (MODIFF != modiff) |
aa52fef9 | 463 | hairy = 2; |
cd645247 | 464 | } |
e744155a | 465 | |
049749e6 | 466 | if (chars_to_delete) |
e744155a | 467 | { |
f34206b4 | 468 | string = make_string_from_bytes (str, 1, len); |
e744155a RS |
469 | if (spaces_to_insert) |
470 | { | |
471 | tem = Fmake_string (make_number (spaces_to_insert), | |
472 | make_number (' ')); | |
473 | string = concat2 (tem, string); | |
474 | } | |
475 | ||
5f65b1b4 | 476 | replace_range (PT, PT + chars_to_delete, string, 1, 1, 1); |
1bf95511 | 477 | Fforward_char (make_number (1 + spaces_to_insert)); |
e744155a RS |
478 | } |
479 | else | |
480 | insert_and_inherit (str, len); | |
481 | ||
01428933 KH |
482 | if ((CHAR_TABLE_P (Vauto_fill_chars) |
483 | ? !NILP (CHAR_TABLE_REF (Vauto_fill_chars, c)) | |
484 | : (c == ' ' || c == '\n')) | |
cd645247 | 485 | && !noautofill |
3de15b7a | 486 | && !NILP (current_buffer->auto_fill_function)) |
cd645247 | 487 | { |
76bb6dbb KH |
488 | Lisp_Object tem; |
489 | ||
9e4fd67b | 490 | if (c == '\n') |
049749e6 RS |
491 | /* After inserting a newline, move to previous line and fill |
492 | that. Must have the newline in place already so filling and | |
493 | justification, if any, know where the end is going to be. */ | |
494 | SET_PT_BOTH (PT - 1, PT_BYTE - 1); | |
76bb6dbb | 495 | tem = call0 (current_buffer->auto_fill_function); |
9e4fd67b | 496 | if (c == '\n') |
049749e6 | 497 | SET_PT_BOTH (PT + 1, PT_BYTE + 1); |
76bb6dbb KH |
498 | if (!NILP (tem)) |
499 | hairy = 2; | |
cd645247 | 500 | } |
189fad68 RS |
501 | |
502 | /* If previous command specified a face to use, use it. */ | |
503 | if (!NILP (Vself_insert_face) | |
346e0c2d | 504 | && EQ (current_kboard->Vlast_command, Vself_insert_face_command)) |
189fad68 | 505 | { |
049749e6 RS |
506 | Fput_text_property (make_number (PT - 1), make_number (PT), |
507 | Qface, Vself_insert_face, Qnil); | |
189fad68 RS |
508 | Vself_insert_face = Qnil; |
509 | } | |
e744155a | 510 | |
cd645247 JB |
511 | synt = SYNTAX (c); |
512 | if ((synt == Sclose || synt == Smath) | |
2718dfa4 RS |
513 | && !NILP (Vblink_paren_function) && INTERACTIVE |
514 | && !noautofill) | |
cd645247 JB |
515 | { |
516 | call0 (Vblink_paren_function); | |
aa52fef9 | 517 | hairy = 2; |
cd645247 JB |
518 | } |
519 | return hairy; | |
520 | } | |
521 | \f | |
522 | /* module initialization */ | |
523 | ||
dfcf069d | 524 | void |
cd645247 JB |
525 | syms_of_cmds () |
526 | { | |
527 | Qkill_backward_chars = intern ("kill-backward-chars"); | |
528 | staticpro (&Qkill_backward_chars); | |
529 | ||
530 | Qkill_forward_chars = intern ("kill-forward-chars"); | |
531 | staticpro (&Qkill_forward_chars); | |
532 | ||
6bbb0d4a JB |
533 | Qoverwrite_mode_binary = intern ("overwrite-mode-binary"); |
534 | staticpro (&Qoverwrite_mode_binary); | |
e686c647 | 535 | |
189fad68 RS |
536 | DEFVAR_LISP ("self-insert-face", &Vself_insert_face, |
537 | "If non-nil, set the face of the next self-inserting character to this.\n\ | |
538 | See also `self-insert-face-command'."); | |
539 | Vself_insert_face = Qnil; | |
540 | ||
541 | DEFVAR_LISP ("self-insert-face-command", &Vself_insert_face_command, | |
542 | "This is the command that set up `self-insert-face'.\n\ | |
543 | If `last-command' does not equal this value, we ignore `self-insert-face'."); | |
544 | Vself_insert_face_command = Qnil; | |
545 | ||
cd645247 JB |
546 | DEFVAR_LISP ("blink-paren-function", &Vblink_paren_function, |
547 | "Function called, if non-nil, whenever a close parenthesis is inserted.\n\ | |
548 | More precisely, a char with closeparen syntax is self-inserted."); | |
549 | Vblink_paren_function = Qnil; | |
550 | ||
9e4fd67b | 551 | defsubr (&Sforward_point); |
cd645247 JB |
552 | defsubr (&Sforward_char); |
553 | defsubr (&Sbackward_char); | |
554 | defsubr (&Sforward_line); | |
555 | defsubr (&Sbeginning_of_line); | |
556 | defsubr (&Send_of_line); | |
557 | ||
558 | defsubr (&Sdelete_char); | |
559 | defsubr (&Sdelete_backward_char); | |
560 | ||
561 | defsubr (&Sself_insert_command); | |
cd645247 JB |
562 | } |
563 | ||
dfcf069d | 564 | void |
cd645247 JB |
565 | keys_of_cmds () |
566 | { | |
567 | int n; | |
568 | ||
cbf65115 | 569 | initial_define_key (global_map, Ctl ('I'), "self-insert-command"); |
cd645247 JB |
570 | for (n = 040; n < 0177; n++) |
571 | initial_define_key (global_map, n, "self-insert-command"); | |
cf9cdc11 RS |
572 | #ifdef MSDOS |
573 | for (n = 0200; n < 0240; n++) | |
574 | initial_define_key (global_map, n, "self-insert-command"); | |
575 | #endif | |
94748cb9 | 576 | for (n = 0240; n < 0400; n++) |
eb46da6a | 577 | initial_define_key (global_map, n, "self-insert-command"); |
cd645247 JB |
578 | |
579 | initial_define_key (global_map, Ctl ('A'), "beginning-of-line"); | |
580 | initial_define_key (global_map, Ctl ('B'), "backward-char"); | |
581 | initial_define_key (global_map, Ctl ('D'), "delete-char"); | |
582 | initial_define_key (global_map, Ctl ('E'), "end-of-line"); | |
583 | initial_define_key (global_map, Ctl ('F'), "forward-char"); | |
584 | initial_define_key (global_map, 0177, "delete-backward-char"); | |
585 | } |