Commit | Line | Data |
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cd645247 | 1 | /* Simple built-in editing commands. |
0b5538bd | 2 | Copyright (C) 1985, 1993, 1994, 1995, 1996, 1997, 1998, 2001, 2002, |
114f9c96 | 3 | 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
8cabe764 | 4 | Free Software Foundation, Inc. |
cd645247 JB |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
9ec0b715 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
cd645247 | 9 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
cd645247 JB |
12 | |
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
cd645247 JB |
20 | |
21 | ||
18160b98 | 22 | #include <config.h> |
d7306fe6 | 23 | #include <setjmp.h> |
cd645247 JB |
24 | #include "lisp.h" |
25 | #include "commands.h" | |
26 | #include "buffer.h" | |
83be827a | 27 | #include "character.h" |
cd645247 | 28 | #include "syntax.h" |
f109dfa2 | 29 | #include "window.h" |
346e0c2d | 30 | #include "keyboard.h" |
e35f6ff7 | 31 | #include "keymap.h" |
dfcf069d | 32 | #include "dispextern.h" |
2cc7b62f | 33 | #include "frame.h" |
cd645247 JB |
34 | |
35 | Lisp_Object Qkill_forward_chars, Qkill_backward_chars, Vblink_paren_function; | |
36 | ||
6bbb0d4a JB |
37 | /* A possible value for a buffer's overwrite-mode variable. */ |
38 | Lisp_Object Qoverwrite_mode_binary; | |
39 | ||
189fad68 RS |
40 | /* Non-nil means put this face on the next self-inserting character. */ |
41 | Lisp_Object Vself_insert_face; | |
42 | ||
43 | /* This is the command that set up Vself_insert_face. */ | |
44 | Lisp_Object Vself_insert_face_command; | |
45 | ||
189fad68 | 46 | extern Lisp_Object Qface; |
867d5263 | 47 | extern Lisp_Object Vtranslation_table_for_input; |
cd645247 | 48 | \f |
9e4fd67b | 49 | DEFUN ("forward-point", Fforward_point, Sforward_point, 1, 1, 0, |
335c5470 | 50 | doc: /* Return buffer position N characters after (before if N negative) point. */) |
5842a27b | 51 | (Lisp_Object n) |
9e4fd67b | 52 | { |
b7826503 | 53 | CHECK_NUMBER (n); |
9e4fd67b | 54 | |
049749e6 | 55 | return make_number (PT + XINT (n)); |
9e4fd67b KH |
56 | } |
57 | ||
9ae750f0 | 58 | DEFUN ("forward-char", Fforward_char, Sforward_char, 0, 1, "^p", |
d20e1419 EZ |
59 | doc: /* Move point N characters forward (backward if N is negative). |
60 | On reaching end or beginning of buffer, stop and signal error. | |
61 | ||
62 | Depending on the bidirectional context, the movement may be to the | |
63 | right or to the left on the screen. This is in contrast with | |
5220357f | 64 | \\[right-char], which see. */) |
5842a27b | 65 | (Lisp_Object n) |
cd645247 | 66 | { |
72d5f589 EN |
67 | if (NILP (n)) |
68 | XSETFASTINT (n, 1); | |
cd645247 | 69 | else |
b7826503 | 70 | CHECK_NUMBER (n); |
cd645247 | 71 | |
72d5f589 | 72 | /* This used to just set point to point + XINT (n), and then check |
7b502dc3 JB |
73 | to see if it was within boundaries. But now that SET_PT can |
74 | potentially do a lot of stuff (calling entering and exiting | |
75 | hooks, etcetera), that's not a good approach. So we validate the | |
76 | proposed position, then set point. */ | |
77 | { | |
049749e6 | 78 | int new_point = PT + XINT (n); |
7b502dc3 JB |
79 | |
80 | if (new_point < BEGV) | |
81 | { | |
82 | SET_PT (BEGV); | |
aaf769f1 | 83 | xsignal0 (Qbeginning_of_buffer); |
7b502dc3 JB |
84 | } |
85 | if (new_point > ZV) | |
86 | { | |
87 | SET_PT (ZV); | |
aaf769f1 | 88 | xsignal0 (Qend_of_buffer); |
7b502dc3 JB |
89 | } |
90 | ||
91 | SET_PT (new_point); | |
92 | } | |
93 | ||
cd645247 JB |
94 | return Qnil; |
95 | } | |
96 | ||
9ae750f0 | 97 | DEFUN ("backward-char", Fbackward_char, Sbackward_char, 0, 1, "^p", |
d20e1419 EZ |
98 | doc: /* Move point N characters backward (forward if N is negative). |
99 | On attempt to pass beginning or end of buffer, stop and signal error. | |
100 | ||
101 | Depending on the bidirectional context, the movement may be to the | |
102 | right or to the left on the screen. This is in contrast with | |
5220357f | 103 | \\[left-char], which see. */) |
5842a27b | 104 | (Lisp_Object n) |
cd645247 | 105 | { |
72d5f589 EN |
106 | if (NILP (n)) |
107 | XSETFASTINT (n, 1); | |
cd645247 | 108 | else |
b7826503 | 109 | CHECK_NUMBER (n); |
cd645247 | 110 | |
72d5f589 EN |
111 | XSETINT (n, - XINT (n)); |
112 | return Fforward_char (n); | |
cd645247 JB |
113 | } |
114 | ||
9ae750f0 | 115 | DEFUN ("forward-line", Fforward_line, Sforward_line, 0, 1, "^p", |
335c5470 PJ |
116 | doc: /* Move N lines forward (backward if N is negative). |
117 | Precisely, if point is on line I, move to the start of line I + N. | |
118 | If there isn't room, go as far as possible (no error). | |
119 | Returns the count of lines left to move. If moving forward, | |
120 | that is N - number of lines moved; if backward, N + number moved. | |
121 | With positive N, a non-empty line at the end counts as one line | |
5220357f | 122 | successfully moved (for the return value). */) |
5842a27b | 123 | (Lisp_Object n) |
cd645247 | 124 | { |
049749e6 RS |
125 | int opoint = PT, opoint_byte = PT_BYTE; |
126 | int pos, pos_byte; | |
127 | int count, shortage; | |
cd645247 | 128 | |
265a9e55 | 129 | if (NILP (n)) |
cd645247 JB |
130 | count = 1; |
131 | else | |
132 | { | |
b7826503 | 133 | CHECK_NUMBER (n); |
cd645247 JB |
134 | count = XINT (n); |
135 | } | |
136 | ||
049749e6 RS |
137 | if (count <= 0) |
138 | shortage = scan_newline (PT, PT_BYTE, BEGV, BEGV_BYTE, count - 1, 1); | |
139 | else | |
140 | shortage = scan_newline (PT, PT_BYTE, ZV, ZV_BYTE, count, 1); | |
141 | ||
142 | /* Since scan_newline does TEMP_SET_PT_BOTH, | |
143 | and we want to set PT "for real", | |
144 | go back to the old point and then come back here. */ | |
145 | pos = PT; | |
146 | pos_byte = PT_BYTE; | |
147 | TEMP_SET_PT_BOTH (opoint, opoint_byte); | |
148 | SET_PT_BOTH (pos, pos_byte); | |
149 | ||
cd645247 | 150 | if (shortage > 0 |
049749e6 | 151 | && (count <= 0 |
502ddf23 | 152 | || (ZV > BEGV |
049749e6 RS |
153 | && PT != opoint |
154 | && (FETCH_BYTE (PT_BYTE - 1) != '\n')))) | |
cd645247 | 155 | shortage--; |
049749e6 RS |
156 | |
157 | return make_number (count <= 0 ? - shortage : shortage); | |
cd645247 JB |
158 | } |
159 | ||
9ae750f0 | 160 | DEFUN ("beginning-of-line", Fbeginning_of_line, Sbeginning_of_line, 0, 1, "^p", |
8abc9869 MB |
161 | doc: /* Move point to beginning of current line. |
162 | With argument N not nil or 1, move forward N - 1 lines first. | |
163 | If point reaches the beginning or end of buffer, it stops there. | |
164 | ||
13c42cc5 | 165 | This function constrains point to the current field unless this moves |
5220357f JB |
166 | point to a different line than the original, unconstrained result. |
167 | If N is nil or 1, and a front-sticky field starts at point, the point | |
13c42cc5 | 168 | does not move. To ignore field boundaries bind |
27806b20 KL |
169 | `inhibit-field-text-motion' to t, or use the `forward-line' function |
170 | instead. For instance, `(forward-line 0)' does the same thing as | |
171 | `(beginning-of-line)', except that it ignores field boundaries. */) | |
5842a27b | 172 | (Lisp_Object n) |
cd645247 | 173 | { |
265a9e55 | 174 | if (NILP (n)) |
48c7cef2 | 175 | XSETFASTINT (n, 1); |
cd645247 | 176 | else |
b7826503 | 177 | CHECK_NUMBER (n); |
cd645247 | 178 | |
0aee588d | 179 | SET_PT (XINT (Fline_beginning_position (n))); |
a731cae2 | 180 | |
cd645247 JB |
181 | return Qnil; |
182 | } | |
183 | ||
9ae750f0 | 184 | DEFUN ("end-of-line", Fend_of_line, Send_of_line, 0, 1, "^p", |
8abc9869 MB |
185 | doc: /* Move point to end of current line. |
186 | With argument N not nil or 1, move forward N - 1 lines first. | |
187 | If point reaches the beginning or end of buffer, it stops there. | |
6b61353c | 188 | To ignore intangibility, bind `inhibit-point-motion-hooks' to t. |
8abc9869 | 189 | |
13c42cc5 KL |
190 | This function constrains point to the current field unless this moves |
191 | point to a different line than the original, unconstrained result. If | |
192 | N is nil or 1, and a rear-sticky field ends at point, the point does | |
193 | not move. To ignore field boundaries bind `inhibit-field-text-motion' | |
194 | to t. */) | |
5842a27b | 195 | (Lisp_Object n) |
cd645247 | 196 | { |
fda3de70 RS |
197 | int newpos; |
198 | ||
265a9e55 | 199 | if (NILP (n)) |
48c7cef2 | 200 | XSETFASTINT (n, 1); |
cd645247 | 201 | else |
b7826503 | 202 | CHECK_NUMBER (n); |
cd645247 | 203 | |
fda3de70 RS |
204 | while (1) |
205 | { | |
206 | newpos = XINT (Fline_end_position (n)); | |
207 | SET_PT (newpos); | |
208 | ||
209 | if (PT > newpos | |
210 | && FETCH_CHAR (PT - 1) == '\n') | |
211 | { | |
212 | /* If we skipped over a newline that follows | |
213 | an invisible intangible run, | |
214 | move back to the last tangible position | |
215 | within the line. */ | |
216 | ||
217 | SET_PT (PT - 1); | |
218 | break; | |
219 | } | |
220 | else if (PT > newpos && PT < ZV | |
221 | && FETCH_CHAR (PT) != '\n') | |
222 | /* If we skipped something intangible | |
223 | and now we're not really at eol, | |
224 | keep going. */ | |
225 | n = make_number (1); | |
226 | else | |
227 | break; | |
228 | } | |
cd645247 JB |
229 | |
230 | return Qnil; | |
231 | } | |
232 | ||
233 | DEFUN ("delete-char", Fdelete_char, Sdelete_char, 1, 2, "p\nP", | |
335c5470 PJ |
234 | doc: /* Delete the following N characters (previous if N is negative). |
235 | Optional second arg KILLFLAG non-nil means kill instead (save in kill ring). | |
236 | Interactively, N is the prefix arg, and KILLFLAG is set if | |
b9229673 CY |
237 | N was explicitly specified. |
238 | ||
239 | The command `delete-forward' is preferable for interactive use. */) | |
5842a27b | 240 | (Lisp_Object n, Lisp_Object killflag) |
cd645247 | 241 | { |
9e4fd67b KH |
242 | int pos; |
243 | ||
b7826503 | 244 | CHECK_NUMBER (n); |
cd645247 | 245 | |
049749e6 | 246 | pos = PT + XINT (n); |
265a9e55 | 247 | if (NILP (killflag)) |
cd645247 JB |
248 | { |
249 | if (XINT (n) < 0) | |
250 | { | |
9e4fd67b | 251 | if (pos < BEGV) |
aaf769f1 | 252 | xsignal0 (Qbeginning_of_buffer); |
cd645247 | 253 | else |
9e4fd67b | 254 | del_range (pos, PT); |
cd645247 JB |
255 | } |
256 | else | |
257 | { | |
9e4fd67b | 258 | if (pos > ZV) |
aaf769f1 | 259 | xsignal0 (Qend_of_buffer); |
cd645247 | 260 | else |
9e4fd67b | 261 | del_range (PT, pos); |
cd645247 JB |
262 | } |
263 | } | |
264 | else | |
265 | { | |
266 | call1 (Qkill_forward_chars, n); | |
267 | } | |
268 | return Qnil; | |
269 | } | |
270 | ||
855a0da7 | 271 | static int nonundocount; |
1ac9108a | 272 | |
867d5263 DL |
273 | /* Note that there's code in command_loop_1 which typically avoids |
274 | calling this. */ | |
cd645247 | 275 | DEFUN ("self-insert-command", Fself_insert_command, Sself_insert_command, 1, 1, "p", |
335c5470 | 276 | doc: /* Insert the character you type. |
1ac9108a SM |
277 | Whichever character you type to run this command is inserted. |
278 | Before insertion, `expand-abbrev' is executed if the inserted character does | |
279 | not have word syntax and the previous character in the buffer does. | |
280 | After insertion, the value of `auto-fill-function' is called if the | |
281 | `auto-fill-chars' table has a non-nil value for the inserted character. */) | |
5842a27b | 282 | (Lisp_Object n) |
cd645247 | 283 | { |
1ac9108a | 284 | int remove_boundary = 1; |
b0ca0f33 | 285 | CHECK_NUMBER (n); |
1ac9108a SM |
286 | |
287 | if (!EQ (Vthis_command, current_kboard->Vlast_command)) | |
288 | nonundocount = 0; | |
289 | ||
290 | if (NILP (Vexecuting_kbd_macro) | |
291 | && !EQ (minibuf_window, selected_window)) | |
292 | { | |
293 | if (nonundocount <= 0 || nonundocount >= 20) | |
294 | { | |
295 | remove_boundary = 0; | |
296 | nonundocount = 0; | |
297 | } | |
298 | nonundocount++; | |
299 | } | |
300 | ||
301 | if (remove_boundary | |
302 | && CONSP (current_buffer->undo_list) | |
303 | && NILP (XCAR (current_buffer->undo_list))) | |
304 | /* Remove the undo_boundary that was just pushed. */ | |
305 | current_buffer->undo_list = XCDR (current_buffer->undo_list); | |
cd645247 JB |
306 | |
307 | /* Barf if the key that invoked this was not a character. */ | |
a31e445e | 308 | if (!CHARACTERP (last_command_event)) |
cd645247 | 309 | bitch_at_user (); |
867d5263 DL |
310 | { |
311 | int character = translate_char (Vtranslation_table_for_input, | |
a31e445e | 312 | XINT (last_command_event)); |
867d5263 | 313 | if (XINT (n) >= 2 && NILP (current_buffer->overwrite_mode)) |
cd645247 | 314 | { |
867d5263 DL |
315 | XSETFASTINT (n, XFASTINT (n) - 2); |
316 | /* The first one might want to expand an abbrev. */ | |
317 | internal_self_insert (character, 1); | |
318 | /* The bulk of the copies of this char can be inserted simply. | |
319 | We don't have to handle a user-specified face specially | |
320 | because it will get inherited from the first char inserted. */ | |
ef73e7be | 321 | Finsert_char (make_number (character), n, Qt); |
867d5263 DL |
322 | /* The last one might want to auto-fill. */ |
323 | internal_self_insert (character, 0); | |
cd645247 | 324 | } |
867d5263 DL |
325 | else |
326 | while (XINT (n) > 0) | |
327 | { | |
1ac9108a | 328 | int val; |
867d5263 DL |
329 | /* Ok since old and new vals both nonneg */ |
330 | XSETFASTINT (n, XFASTINT (n) - 1); | |
1ac9108a SM |
331 | val = internal_self_insert (character, XFASTINT (n) != 0); |
332 | if (val == 2) | |
333 | nonundocount = 0; | |
334 | frame_make_pointer_invisible (); | |
867d5263 DL |
335 | } |
336 | } | |
cd645247 JB |
337 | |
338 | return Qnil; | |
339 | } | |
340 | ||
9e4fd67b | 341 | /* Insert character C. If NOAUTOFILL is nonzero, don't do autofill |
4c6e656f RS |
342 | even if it is enabled. |
343 | ||
344 | If this insertion is suitable for direct output (completely simple), | |
aa52fef9 RS |
345 | return 0. A value of 1 indicates this *might* not have been simple. |
346 | A value of 2 means this did things that call for an undo boundary. */ | |
4c6e656f | 347 | |
53abaf54 SM |
348 | static Lisp_Object Qexpand_abbrev; |
349 | ||
dfcf069d | 350 | int |
971de7fb | 351 | internal_self_insert (int c, int noautofill) |
cd645247 | 352 | { |
cd645247 JB |
353 | int hairy = 0; |
354 | Lisp_Object tem; | |
355 | register enum syntaxcode synt; | |
e744155a | 356 | Lisp_Object overwrite, string; |
9e4fd67b KH |
357 | /* Length of multi-byte form of C. */ |
358 | int len; | |
359 | /* Working buffer and pointer for multi-byte form of C. */ | |
e55d9cfd | 360 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
049749e6 | 361 | int chars_to_delete = 0; |
e744155a | 362 | int spaces_to_insert = 0; |
cd645247 | 363 | |
e7aacab7 | 364 | overwrite = current_buffer->overwrite_mode; |
ad44dffe | 365 | if (!NILP (Vbefore_change_functions) || !NILP (Vafter_change_functions)) |
cd645247 JB |
366 | hairy = 1; |
367 | ||
9e4fd67b KH |
368 | /* At first, get multi-byte form of C in STR. */ |
369 | if (!NILP (current_buffer->enable_multibyte_characters)) | |
b9859007 | 370 | { |
e55d9cfd | 371 | len = CHAR_STRING (c, str); |
741263c2 KH |
372 | if (len == 1) |
373 | /* If C has modifier bits, this makes C an appropriate | |
374 | one-byte char. */ | |
375 | c = *str; | |
b9859007 | 376 | } |
9e4fd67b | 377 | else |
38b62842 | 378 | { |
e55d9cfd KH |
379 | str[0] = (SINGLE_BYTE_CHAR_P (c) |
380 | ? c | |
381 | : multibyte_char_to_unibyte (c, Qnil)); | |
38b62842 KH |
382 | len = 1; |
383 | } | |
6bbb0d4a | 384 | if (!NILP (overwrite) |
9e4fd67b | 385 | && PT < ZV) |
cd645247 | 386 | { |
9e4fd67b KH |
387 | /* In overwrite-mode, we substitute a character at point (C2, |
388 | hereafter) by C. For that, we delete C2 in advance. But, | |
389 | just substituting C2 by C may move a remaining text in the | |
390 | line to the right or to the left, which is not preferable. | |
391 | So we insert more spaces or delete more characters in the | |
392 | following cases: if C is narrower than C2, after deleting C2, | |
393 | we fill columns with spaces, if C is wider than C2, we delete | |
394 | C2 and several characters following C2. */ | |
395 | ||
216b9443 RS |
396 | /* This is the character after point. */ |
397 | int c2 = FETCH_CHAR (PT_BYTE); | |
398 | ||
399 | /* Column the cursor should be placed at after this insertion. | |
9e4fd67b KH |
400 | The correct value should be calculated only when necessary. */ |
401 | int target_clm = 0; | |
402 | ||
37c0ed09 RS |
403 | /* Overwriting in binary-mode always replaces C2 by C. |
404 | Overwriting in textual-mode doesn't always do that. | |
405 | It inserts newlines in the usual way, | |
406 | and inserts any character at end of line | |
407 | or before a tab if it doesn't use the whole width of the tab. */ | |
9e4fd67b KH |
408 | if (EQ (overwrite, Qoverwrite_mode_binary) |
409 | || (c != '\n' | |
410 | && c2 != '\n' | |
37c0ed09 RS |
411 | && ! (c2 == '\t' |
412 | && XINT (current_buffer->tab_width) > 0 | |
413 | && XFASTINT (current_buffer->tab_width) < 20 | |
a731cae2 | 414 | && (target_clm = ((int) current_column () /* iftc */ |
06d74a65 | 415 | + XINT (Fchar_width (make_number (c)))), |
37c0ed09 | 416 | target_clm % XFASTINT (current_buffer->tab_width))))) |
9e4fd67b | 417 | { |
e744155a | 418 | int pos = PT; |
049749e6 | 419 | int pos_byte = PT_BYTE; |
e744155a | 420 | |
9e4fd67b | 421 | if (target_clm == 0) |
049749e6 | 422 | chars_to_delete = 1; |
9e4fd67b KH |
423 | else |
424 | { | |
9e4fd67b KH |
425 | /* The actual cursor position after the trial of moving |
426 | to column TARGET_CLM. It is greater than TARGET_CLM | |
427 | if the TARGET_CLM is middle of multi-column | |
428 | character. In that case, the new point is set after | |
429 | that character. */ | |
cac55749 RS |
430 | int actual_clm |
431 | = XFASTINT (Fmove_to_column (make_number (target_clm), Qnil)); | |
9e4fd67b | 432 | |
049749e6 | 433 | chars_to_delete = PT - pos; |
e744155a | 434 | |
9e4fd67b KH |
435 | if (actual_clm > target_clm) |
436 | { | |
e744155a | 437 | /* We will delete too many columns. Let's fill columns |
9e4fd67b | 438 | by spaces so that the remaining text won't move. */ |
e744155a | 439 | spaces_to_insert = actual_clm - target_clm; |
9e4fd67b KH |
440 | } |
441 | } | |
049749e6 | 442 | SET_PT_BOTH (pos, pos_byte); |
9e4fd67b KH |
443 | hairy = 2; |
444 | } | |
aa52fef9 | 445 | hairy = 2; |
cd645247 | 446 | } |
9ad8bfb0 | 447 | |
9ad8bfb0 KH |
448 | synt = SYNTAX (c); |
449 | ||
265a9e55 | 450 | if (!NILP (current_buffer->abbrev_mode) |
9ad8bfb0 | 451 | && synt != Sword |
265a9e55 | 452 | && NILP (current_buffer->read_only) |
9ad8bfb0 KH |
453 | && PT > BEGV |
454 | && (!NILP (current_buffer->enable_multibyte_characters) | |
455 | ? SYNTAX (XFASTINT (Fprevious_char ())) == Sword | |
4c0354d7 | 456 | : (SYNTAX (UNIBYTE_TO_CHAR (XFASTINT (Fprevious_char ()))) |
9ad8bfb0 | 457 | == Sword))) |
cd645247 | 458 | { |
ee8caabb | 459 | int modiff = MODIFF; |
e57640c0 RS |
460 | Lisp_Object sym; |
461 | ||
53abaf54 | 462 | sym = call0 (Qexpand_abbrev); |
e57640c0 | 463 | |
c87dbfd0 | 464 | /* If we expanded an abbrev which has a hook, |
9317a902 | 465 | and the hook has a non-nil `no-self-insert' property, |
e57640c0 | 466 | return right away--don't really self-insert. */ |
fb6b6049 | 467 | if (SYMBOLP (sym) && ! NILP (sym) && ! NILP (XSYMBOL (sym)->function) |
9317a902 | 468 | && SYMBOLP (XSYMBOL (sym)->function)) |
e57640c0 RS |
469 | { |
470 | Lisp_Object prop; | |
9317a902 | 471 | prop = Fget (XSYMBOL (sym)->function, intern ("no-self-insert")); |
e57640c0 | 472 | if (! NILP (prop)) |
6787d111 | 473 | return 1; |
e57640c0 RS |
474 | } |
475 | ||
ee8caabb | 476 | if (MODIFF != modiff) |
aa52fef9 | 477 | hairy = 2; |
cd645247 | 478 | } |
e744155a | 479 | |
049749e6 | 480 | if (chars_to_delete) |
e744155a | 481 | { |
f34206b4 | 482 | string = make_string_from_bytes (str, 1, len); |
e744155a RS |
483 | if (spaces_to_insert) |
484 | { | |
485 | tem = Fmake_string (make_number (spaces_to_insert), | |
486 | make_number (' ')); | |
487 | string = concat2 (tem, string); | |
488 | } | |
489 | ||
5f65b1b4 | 490 | replace_range (PT, PT + chars_to_delete, string, 1, 1, 1); |
1bf95511 | 491 | Fforward_char (make_number (1 + spaces_to_insert)); |
e744155a RS |
492 | } |
493 | else | |
494 | insert_and_inherit (str, len); | |
495 | ||
01428933 KH |
496 | if ((CHAR_TABLE_P (Vauto_fill_chars) |
497 | ? !NILP (CHAR_TABLE_REF (Vauto_fill_chars, c)) | |
498 | : (c == ' ' || c == '\n')) | |
cd645247 | 499 | && !noautofill |
3de15b7a | 500 | && !NILP (current_buffer->auto_fill_function)) |
cd645247 | 501 | { |
76bb6dbb KH |
502 | Lisp_Object tem; |
503 | ||
9e4fd67b | 504 | if (c == '\n') |
049749e6 RS |
505 | /* After inserting a newline, move to previous line and fill |
506 | that. Must have the newline in place already so filling and | |
507 | justification, if any, know where the end is going to be. */ | |
508 | SET_PT_BOTH (PT - 1, PT_BYTE - 1); | |
76bb6dbb | 509 | tem = call0 (current_buffer->auto_fill_function); |
4d94dd9a RS |
510 | /* Test PT < ZV in case the auto-fill-function is strange. */ |
511 | if (c == '\n' && PT < ZV) | |
049749e6 | 512 | SET_PT_BOTH (PT + 1, PT_BYTE + 1); |
76bb6dbb KH |
513 | if (!NILP (tem)) |
514 | hairy = 2; | |
cd645247 | 515 | } |
189fad68 RS |
516 | |
517 | /* If previous command specified a face to use, use it. */ | |
518 | if (!NILP (Vself_insert_face) | |
346e0c2d | 519 | && EQ (current_kboard->Vlast_command, Vself_insert_face_command)) |
189fad68 | 520 | { |
049749e6 RS |
521 | Fput_text_property (make_number (PT - 1), make_number (PT), |
522 | Qface, Vself_insert_face, Qnil); | |
189fad68 RS |
523 | Vself_insert_face = Qnil; |
524 | } | |
e744155a | 525 | |
cd645247 | 526 | if ((synt == Sclose || synt == Smath) |
2718dfa4 RS |
527 | && !NILP (Vblink_paren_function) && INTERACTIVE |
528 | && !noautofill) | |
cd645247 JB |
529 | { |
530 | call0 (Vblink_paren_function); | |
aa52fef9 | 531 | hairy = 2; |
cd645247 JB |
532 | } |
533 | return hairy; | |
534 | } | |
535 | \f | |
536 | /* module initialization */ | |
537 | ||
dfcf069d | 538 | void |
971de7fb | 539 | syms_of_cmds (void) |
cd645247 | 540 | { |
d67b4f80 | 541 | Qkill_backward_chars = intern_c_string ("kill-backward-chars"); |
cd645247 JB |
542 | staticpro (&Qkill_backward_chars); |
543 | ||
d67b4f80 | 544 | Qkill_forward_chars = intern_c_string ("kill-forward-chars"); |
cd645247 JB |
545 | staticpro (&Qkill_forward_chars); |
546 | ||
d67b4f80 | 547 | Qoverwrite_mode_binary = intern_c_string ("overwrite-mode-binary"); |
6bbb0d4a | 548 | staticpro (&Qoverwrite_mode_binary); |
e686c647 | 549 | |
d67b4f80 | 550 | Qexpand_abbrev = intern_c_string ("expand-abbrev"); |
53abaf54 SM |
551 | staticpro (&Qexpand_abbrev); |
552 | ||
189fad68 | 553 | DEFVAR_LISP ("self-insert-face", &Vself_insert_face, |
335c5470 PJ |
554 | doc: /* If non-nil, set the face of the next self-inserting character to this. |
555 | See also `self-insert-face-command'. */); | |
189fad68 RS |
556 | Vself_insert_face = Qnil; |
557 | ||
558 | DEFVAR_LISP ("self-insert-face-command", &Vself_insert_face_command, | |
335c5470 PJ |
559 | doc: /* This is the command that set up `self-insert-face'. |
560 | If `last-command' does not equal this value, we ignore `self-insert-face'. */); | |
189fad68 RS |
561 | Vself_insert_face_command = Qnil; |
562 | ||
cd645247 | 563 | DEFVAR_LISP ("blink-paren-function", &Vblink_paren_function, |
335c5470 PJ |
564 | doc: /* Function called, if non-nil, whenever a close parenthesis is inserted. |
565 | More precisely, a char with closeparen syntax is self-inserted. */); | |
cd645247 JB |
566 | Vblink_paren_function = Qnil; |
567 | ||
9e4fd67b | 568 | defsubr (&Sforward_point); |
cd645247 JB |
569 | defsubr (&Sforward_char); |
570 | defsubr (&Sbackward_char); | |
571 | defsubr (&Sforward_line); | |
572 | defsubr (&Sbeginning_of_line); | |
573 | defsubr (&Send_of_line); | |
574 | ||
575 | defsubr (&Sdelete_char); | |
cd645247 | 576 | defsubr (&Sself_insert_command); |
cd645247 JB |
577 | } |
578 | ||
dfcf069d | 579 | void |
971de7fb | 580 | keys_of_cmds (void) |
cd645247 JB |
581 | { |
582 | int n; | |
583 | ||
1ac9108a | 584 | nonundocount = 0; |
cbf65115 | 585 | initial_define_key (global_map, Ctl ('I'), "self-insert-command"); |
cd645247 JB |
586 | for (n = 040; n < 0177; n++) |
587 | initial_define_key (global_map, n, "self-insert-command"); | |
cf9cdc11 RS |
588 | #ifdef MSDOS |
589 | for (n = 0200; n < 0240; n++) | |
590 | initial_define_key (global_map, n, "self-insert-command"); | |
591 | #endif | |
94748cb9 | 592 | for (n = 0240; n < 0400; n++) |
eb46da6a | 593 | initial_define_key (global_map, n, "self-insert-command"); |
cd645247 JB |
594 | |
595 | initial_define_key (global_map, Ctl ('A'), "beginning-of-line"); | |
596 | initial_define_key (global_map, Ctl ('B'), "backward-char"); | |
cd645247 JB |
597 | initial_define_key (global_map, Ctl ('E'), "end-of-line"); |
598 | initial_define_key (global_map, Ctl ('F'), "forward-char"); | |
cd645247 | 599 | } |
6b61353c KH |
600 | |
601 | /* arch-tag: 022ba3cd-67f9-4978-9c5d-7d2b18d8644e | |
602 | (do not change this comment) */ |