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, |
76b6f707 | 3 | 2003, 2004, 2005, 2006, 2007, 2008, 2009 |
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> |
cd645247 JB |
23 | #include "lisp.h" |
24 | #include "commands.h" | |
25 | #include "buffer.h" | |
83be827a | 26 | #include "character.h" |
cd645247 | 27 | #include "syntax.h" |
f109dfa2 | 28 | #include "window.h" |
346e0c2d | 29 | #include "keyboard.h" |
e35f6ff7 | 30 | #include "keymap.h" |
dfcf069d | 31 | #include "dispextern.h" |
cd645247 JB |
32 | |
33 | Lisp_Object Qkill_forward_chars, Qkill_backward_chars, Vblink_paren_function; | |
34 | ||
6bbb0d4a JB |
35 | /* A possible value for a buffer's overwrite-mode variable. */ |
36 | Lisp_Object Qoverwrite_mode_binary; | |
37 | ||
189fad68 RS |
38 | /* Non-nil means put this face on the next self-inserting character. */ |
39 | Lisp_Object Vself_insert_face; | |
40 | ||
41 | /* This is the command that set up Vself_insert_face. */ | |
42 | Lisp_Object Vself_insert_face_command; | |
43 | ||
189fad68 | 44 | extern Lisp_Object Qface; |
867d5263 | 45 | extern Lisp_Object Vtranslation_table_for_input; |
cd645247 | 46 | \f |
9e4fd67b | 47 | DEFUN ("forward-point", Fforward_point, Sforward_point, 1, 1, 0, |
335c5470 PJ |
48 | doc: /* Return buffer position N characters after (before if N negative) point. */) |
49 | (n) | |
9e4fd67b KH |
50 | Lisp_Object n; |
51 | { | |
b7826503 | 52 | CHECK_NUMBER (n); |
9e4fd67b | 53 | |
049749e6 | 54 | return make_number (PT + XINT (n)); |
9e4fd67b KH |
55 | } |
56 | ||
9ae750f0 | 57 | DEFUN ("forward-char", Fforward_char, Sforward_char, 0, 1, "^p", |
335c5470 PJ |
58 | doc: /* Move point right N characters (left if N is negative). |
59 | On reaching end of buffer, stop and signal error. */) | |
60 | (n) | |
72d5f589 | 61 | Lisp_Object n; |
cd645247 | 62 | { |
72d5f589 EN |
63 | if (NILP (n)) |
64 | XSETFASTINT (n, 1); | |
cd645247 | 65 | else |
b7826503 | 66 | CHECK_NUMBER (n); |
cd645247 | 67 | |
72d5f589 | 68 | /* This used to just set point to point + XINT (n), and then check |
7b502dc3 JB |
69 | to see if it was within boundaries. But now that SET_PT can |
70 | potentially do a lot of stuff (calling entering and exiting | |
71 | hooks, etcetera), that's not a good approach. So we validate the | |
72 | proposed position, then set point. */ | |
73 | { | |
049749e6 | 74 | int new_point = PT + XINT (n); |
7b502dc3 JB |
75 | |
76 | if (new_point < BEGV) | |
77 | { | |
78 | SET_PT (BEGV); | |
aaf769f1 | 79 | xsignal0 (Qbeginning_of_buffer); |
7b502dc3 JB |
80 | } |
81 | if (new_point > ZV) | |
82 | { | |
83 | SET_PT (ZV); | |
aaf769f1 | 84 | xsignal0 (Qend_of_buffer); |
7b502dc3 JB |
85 | } |
86 | ||
87 | SET_PT (new_point); | |
88 | } | |
89 | ||
cd645247 JB |
90 | return Qnil; |
91 | } | |
92 | ||
9ae750f0 | 93 | DEFUN ("backward-char", Fbackward_char, Sbackward_char, 0, 1, "^p", |
335c5470 PJ |
94 | doc: /* Move point left N characters (right if N is negative). |
95 | On attempt to pass beginning or end of buffer, stop and signal error. */) | |
96 | (n) | |
72d5f589 | 97 | Lisp_Object n; |
cd645247 | 98 | { |
72d5f589 EN |
99 | if (NILP (n)) |
100 | XSETFASTINT (n, 1); | |
cd645247 | 101 | else |
b7826503 | 102 | CHECK_NUMBER (n); |
cd645247 | 103 | |
72d5f589 EN |
104 | XSETINT (n, - XINT (n)); |
105 | return Fforward_char (n); | |
cd645247 JB |
106 | } |
107 | ||
9ae750f0 | 108 | DEFUN ("forward-line", Fforward_line, Sforward_line, 0, 1, "^p", |
335c5470 PJ |
109 | doc: /* Move N lines forward (backward if N is negative). |
110 | Precisely, if point is on line I, move to the start of line I + N. | |
111 | If there isn't room, go as far as possible (no error). | |
112 | Returns the count of lines left to move. If moving forward, | |
113 | that is N - number of lines moved; if backward, N + number moved. | |
114 | With positive N, a non-empty line at the end counts as one line | |
115 | successfully moved (for the return value). */) | |
116 | (n) | |
cd645247 JB |
117 | Lisp_Object n; |
118 | { | |
049749e6 RS |
119 | int opoint = PT, opoint_byte = PT_BYTE; |
120 | int pos, pos_byte; | |
121 | int count, shortage; | |
cd645247 | 122 | |
265a9e55 | 123 | if (NILP (n)) |
cd645247 JB |
124 | count = 1; |
125 | else | |
126 | { | |
b7826503 | 127 | CHECK_NUMBER (n); |
cd645247 JB |
128 | count = XINT (n); |
129 | } | |
130 | ||
049749e6 RS |
131 | if (count <= 0) |
132 | shortage = scan_newline (PT, PT_BYTE, BEGV, BEGV_BYTE, count - 1, 1); | |
133 | else | |
134 | shortage = scan_newline (PT, PT_BYTE, ZV, ZV_BYTE, count, 1); | |
135 | ||
136 | /* Since scan_newline does TEMP_SET_PT_BOTH, | |
137 | and we want to set PT "for real", | |
138 | go back to the old point and then come back here. */ | |
139 | pos = PT; | |
140 | pos_byte = PT_BYTE; | |
141 | TEMP_SET_PT_BOTH (opoint, opoint_byte); | |
142 | SET_PT_BOTH (pos, pos_byte); | |
143 | ||
cd645247 | 144 | if (shortage > 0 |
049749e6 | 145 | && (count <= 0 |
502ddf23 | 146 | || (ZV > BEGV |
049749e6 RS |
147 | && PT != opoint |
148 | && (FETCH_BYTE (PT_BYTE - 1) != '\n')))) | |
cd645247 | 149 | shortage--; |
049749e6 RS |
150 | |
151 | return make_number (count <= 0 ? - shortage : shortage); | |
cd645247 JB |
152 | } |
153 | ||
9ae750f0 | 154 | DEFUN ("beginning-of-line", Fbeginning_of_line, Sbeginning_of_line, 0, 1, "^p", |
8abc9869 MB |
155 | doc: /* Move point to beginning of current line. |
156 | With argument N not nil or 1, move forward N - 1 lines first. | |
157 | If point reaches the beginning or end of buffer, it stops there. | |
158 | ||
13c42cc5 KL |
159 | This function constrains point to the current field unless this moves |
160 | point to a different line than the original, unconstrained result. If | |
161 | N is nil or 1, and a front-sticky field starts at point, the point | |
162 | does not move. To ignore field boundaries bind | |
27806b20 KL |
163 | `inhibit-field-text-motion' to t, or use the `forward-line' function |
164 | instead. For instance, `(forward-line 0)' does the same thing as | |
165 | `(beginning-of-line)', except that it ignores field boundaries. */) | |
8abc9869 | 166 | (n) |
cd645247 JB |
167 | Lisp_Object n; |
168 | { | |
265a9e55 | 169 | if (NILP (n)) |
48c7cef2 | 170 | XSETFASTINT (n, 1); |
cd645247 | 171 | else |
b7826503 | 172 | CHECK_NUMBER (n); |
cd645247 | 173 | |
0aee588d | 174 | SET_PT (XINT (Fline_beginning_position (n))); |
a731cae2 | 175 | |
cd645247 JB |
176 | return Qnil; |
177 | } | |
178 | ||
9ae750f0 | 179 | DEFUN ("end-of-line", Fend_of_line, Send_of_line, 0, 1, "^p", |
8abc9869 MB |
180 | doc: /* Move point to end of current line. |
181 | With argument N not nil or 1, move forward N - 1 lines first. | |
182 | If point reaches the beginning or end of buffer, it stops there. | |
6b61353c | 183 | To ignore intangibility, bind `inhibit-point-motion-hooks' to t. |
8abc9869 | 184 | |
13c42cc5 KL |
185 | This function constrains point to the current field unless this moves |
186 | point to a different line than the original, unconstrained result. If | |
187 | N is nil or 1, and a rear-sticky field ends at point, the point does | |
188 | not move. To ignore field boundaries bind `inhibit-field-text-motion' | |
189 | to t. */) | |
8abc9869 | 190 | (n) |
cd645247 JB |
191 | Lisp_Object n; |
192 | { | |
fda3de70 RS |
193 | int newpos; |
194 | ||
265a9e55 | 195 | if (NILP (n)) |
48c7cef2 | 196 | XSETFASTINT (n, 1); |
cd645247 | 197 | else |
b7826503 | 198 | CHECK_NUMBER (n); |
cd645247 | 199 | |
fda3de70 RS |
200 | while (1) |
201 | { | |
202 | newpos = XINT (Fline_end_position (n)); | |
203 | SET_PT (newpos); | |
204 | ||
205 | if (PT > newpos | |
206 | && FETCH_CHAR (PT - 1) == '\n') | |
207 | { | |
208 | /* If we skipped over a newline that follows | |
209 | an invisible intangible run, | |
210 | move back to the last tangible position | |
211 | within the line. */ | |
212 | ||
213 | SET_PT (PT - 1); | |
214 | break; | |
215 | } | |
216 | else if (PT > newpos && PT < ZV | |
217 | && FETCH_CHAR (PT) != '\n') | |
218 | /* If we skipped something intangible | |
219 | and now we're not really at eol, | |
220 | keep going. */ | |
221 | n = make_number (1); | |
222 | else | |
223 | break; | |
224 | } | |
cd645247 JB |
225 | |
226 | return Qnil; | |
227 | } | |
228 | ||
229 | DEFUN ("delete-char", Fdelete_char, Sdelete_char, 1, 2, "p\nP", | |
335c5470 PJ |
230 | doc: /* Delete the following N characters (previous if N is negative). |
231 | Optional second arg KILLFLAG non-nil means kill instead (save in kill ring). | |
232 | Interactively, N is the prefix arg, and KILLFLAG is set if | |
233 | N was explicitly specified. */) | |
234 | (n, killflag) | |
cd645247 JB |
235 | Lisp_Object n, killflag; |
236 | { | |
9e4fd67b KH |
237 | int pos; |
238 | ||
b7826503 | 239 | CHECK_NUMBER (n); |
cd645247 | 240 | |
049749e6 | 241 | pos = PT + XINT (n); |
265a9e55 | 242 | if (NILP (killflag)) |
cd645247 JB |
243 | { |
244 | if (XINT (n) < 0) | |
245 | { | |
9e4fd67b | 246 | if (pos < BEGV) |
aaf769f1 | 247 | xsignal0 (Qbeginning_of_buffer); |
cd645247 | 248 | else |
9e4fd67b | 249 | del_range (pos, PT); |
cd645247 JB |
250 | } |
251 | else | |
252 | { | |
9e4fd67b | 253 | if (pos > ZV) |
aaf769f1 | 254 | xsignal0 (Qend_of_buffer); |
cd645247 | 255 | else |
9e4fd67b | 256 | del_range (PT, pos); |
cd645247 JB |
257 | } |
258 | } | |
259 | else | |
260 | { | |
261 | call1 (Qkill_forward_chars, n); | |
262 | } | |
263 | return Qnil; | |
264 | } | |
265 | ||
266 | DEFUN ("delete-backward-char", Fdelete_backward_char, Sdelete_backward_char, | |
335c5470 PJ |
267 | 1, 2, "p\nP", |
268 | doc: /* Delete the previous N characters (following if N is negative). | |
269 | Optional second arg KILLFLAG non-nil means kill instead (save in kill ring). | |
270 | Interactively, N is the prefix arg, and KILLFLAG is set if | |
271 | N was explicitly specified. */) | |
272 | (n, killflag) | |
cd645247 JB |
273 | Lisp_Object n, killflag; |
274 | { | |
aa970069 | 275 | Lisp_Object value; |
7c983171 | 276 | int deleted_special = 0; |
ceb7e4f8 | 277 | int pos, pos_byte, i; |
aa970069 | 278 | |
b7826503 | 279 | CHECK_NUMBER (n); |
aa970069 | 280 | |
7c983171 | 281 | /* See if we are about to delete a tab or newline backwards. */ |
ceb7e4f8 KH |
282 | pos = PT; |
283 | pos_byte = PT_BYTE; | |
284 | for (i = 0; i < XINT (n) && pos_byte > BEGV_BYTE; i++) | |
aa970069 | 285 | { |
9e4fd67b KH |
286 | int c; |
287 | ||
ceb7e4f8 KH |
288 | DEC_BOTH (pos, pos_byte); |
289 | c = FETCH_BYTE (pos_byte); | |
9e4fd67b | 290 | if (c == '\t' || c == '\n') |
aa970069 | 291 | { |
7c983171 | 292 | deleted_special = 1; |
aa970069 RS |
293 | break; |
294 | } | |
295 | } | |
296 | ||
aa970069 RS |
297 | /* In overwrite mode, back over columns while clearing them out, |
298 | unless at end of line. */ | |
299 | if (XINT (n) > 0 | |
300 | && ! NILP (current_buffer->overwrite_mode) | |
7c983171 | 301 | && ! deleted_special |
049749e6 | 302 | && ! (PT == ZV || FETCH_BYTE (PT_BYTE) == '\n')) |
aa970069 | 303 | { |
a731cae2 | 304 | int column = (int) current_column (); /* iftc */ |
9e4fd67b KH |
305 | |
306 | value = Fdelete_char (make_number (-XINT (n)), killflag); | |
a731cae2 | 307 | i = column - (int) current_column (); /* iftc */ |
cac55749 | 308 | Finsert_char (make_number (' '), make_number (i), Qnil); |
049749e6 RS |
309 | /* Whitespace chars are ASCII chars, so we can simply subtract. */ |
310 | SET_PT_BOTH (PT - i, PT_BYTE - i); | |
aa970069 | 311 | } |
9e4fd67b KH |
312 | else |
313 | value = Fdelete_char (make_number (-XINT (n)), killflag); | |
aa970069 RS |
314 | |
315 | return value; | |
cd645247 JB |
316 | } |
317 | ||
1ac9108a SM |
318 | int nonundocount; |
319 | ||
867d5263 DL |
320 | /* Note that there's code in command_loop_1 which typically avoids |
321 | calling this. */ | |
cd645247 | 322 | DEFUN ("self-insert-command", Fself_insert_command, Sself_insert_command, 1, 1, "p", |
335c5470 | 323 | doc: /* Insert the character you type. |
1ac9108a SM |
324 | Whichever character you type to run this command is inserted. |
325 | Before insertion, `expand-abbrev' is executed if the inserted character does | |
326 | not have word syntax and the previous character in the buffer does. | |
327 | After insertion, the value of `auto-fill-function' is called if the | |
328 | `auto-fill-chars' table has a non-nil value for the inserted character. */) | |
335c5470 | 329 | (n) |
72d5f589 | 330 | Lisp_Object n; |
cd645247 | 331 | { |
b7826503 | 332 | CHECK_NUMBER (n); |
1ac9108a SM |
333 | int remove_boundary = 1; |
334 | ||
335 | if (!EQ (Vthis_command, current_kboard->Vlast_command)) | |
336 | nonundocount = 0; | |
337 | ||
338 | if (NILP (Vexecuting_kbd_macro) | |
339 | && !EQ (minibuf_window, selected_window)) | |
340 | { | |
341 | if (nonundocount <= 0 || nonundocount >= 20) | |
342 | { | |
343 | remove_boundary = 0; | |
344 | nonundocount = 0; | |
345 | } | |
346 | nonundocount++; | |
347 | } | |
348 | ||
349 | if (remove_boundary | |
350 | && CONSP (current_buffer->undo_list) | |
351 | && NILP (XCAR (current_buffer->undo_list))) | |
352 | /* Remove the undo_boundary that was just pushed. */ | |
353 | current_buffer->undo_list = XCDR (current_buffer->undo_list); | |
cd645247 JB |
354 | |
355 | /* Barf if the key that invoked this was not a character. */ | |
a31e445e | 356 | if (!CHARACTERP (last_command_event)) |
cd645247 | 357 | bitch_at_user (); |
867d5263 DL |
358 | { |
359 | int character = translate_char (Vtranslation_table_for_input, | |
a31e445e | 360 | XINT (last_command_event)); |
867d5263 | 361 | if (XINT (n) >= 2 && NILP (current_buffer->overwrite_mode)) |
cd645247 | 362 | { |
867d5263 DL |
363 | XSETFASTINT (n, XFASTINT (n) - 2); |
364 | /* The first one might want to expand an abbrev. */ | |
365 | internal_self_insert (character, 1); | |
366 | /* The bulk of the copies of this char can be inserted simply. | |
367 | We don't have to handle a user-specified face specially | |
368 | because it will get inherited from the first char inserted. */ | |
ef73e7be | 369 | Finsert_char (make_number (character), n, Qt); |
867d5263 DL |
370 | /* The last one might want to auto-fill. */ |
371 | internal_self_insert (character, 0); | |
cd645247 | 372 | } |
867d5263 DL |
373 | else |
374 | while (XINT (n) > 0) | |
375 | { | |
1ac9108a | 376 | int val; |
867d5263 DL |
377 | /* Ok since old and new vals both nonneg */ |
378 | XSETFASTINT (n, XFASTINT (n) - 1); | |
1ac9108a SM |
379 | val = internal_self_insert (character, XFASTINT (n) != 0); |
380 | if (val == 2) | |
381 | nonundocount = 0; | |
382 | frame_make_pointer_invisible (); | |
867d5263 DL |
383 | } |
384 | } | |
cd645247 JB |
385 | |
386 | return Qnil; | |
387 | } | |
388 | ||
9e4fd67b | 389 | /* Insert character C. If NOAUTOFILL is nonzero, don't do autofill |
4c6e656f RS |
390 | even if it is enabled. |
391 | ||
392 | If this insertion is suitable for direct output (completely simple), | |
aa52fef9 RS |
393 | return 0. A value of 1 indicates this *might* not have been simple. |
394 | A value of 2 means this did things that call for an undo boundary. */ | |
4c6e656f | 395 | |
53abaf54 SM |
396 | static Lisp_Object Qexpand_abbrev; |
397 | ||
dfcf069d | 398 | int |
9e4fd67b KH |
399 | internal_self_insert (c, noautofill) |
400 | int c; | |
cd645247 JB |
401 | int noautofill; |
402 | { | |
cd645247 JB |
403 | int hairy = 0; |
404 | Lisp_Object tem; | |
405 | register enum syntaxcode synt; | |
e744155a | 406 | Lisp_Object overwrite, string; |
9e4fd67b KH |
407 | /* Length of multi-byte form of C. */ |
408 | int len; | |
409 | /* Working buffer and pointer for multi-byte form of C. */ | |
e55d9cfd | 410 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
049749e6 | 411 | int chars_to_delete = 0; |
e744155a | 412 | int spaces_to_insert = 0; |
cd645247 | 413 | |
e7aacab7 | 414 | overwrite = current_buffer->overwrite_mode; |
ad44dffe | 415 | if (!NILP (Vbefore_change_functions) || !NILP (Vafter_change_functions)) |
cd645247 JB |
416 | hairy = 1; |
417 | ||
9e4fd67b KH |
418 | /* At first, get multi-byte form of C in STR. */ |
419 | if (!NILP (current_buffer->enable_multibyte_characters)) | |
b9859007 | 420 | { |
e55d9cfd | 421 | len = CHAR_STRING (c, str); |
741263c2 KH |
422 | if (len == 1) |
423 | /* If C has modifier bits, this makes C an appropriate | |
424 | one-byte char. */ | |
425 | c = *str; | |
b9859007 | 426 | } |
9e4fd67b | 427 | else |
38b62842 | 428 | { |
e55d9cfd KH |
429 | str[0] = (SINGLE_BYTE_CHAR_P (c) |
430 | ? c | |
431 | : multibyte_char_to_unibyte (c, Qnil)); | |
38b62842 KH |
432 | len = 1; |
433 | } | |
6bbb0d4a | 434 | if (!NILP (overwrite) |
9e4fd67b | 435 | && PT < ZV) |
cd645247 | 436 | { |
9e4fd67b KH |
437 | /* In overwrite-mode, we substitute a character at point (C2, |
438 | hereafter) by C. For that, we delete C2 in advance. But, | |
439 | just substituting C2 by C may move a remaining text in the | |
440 | line to the right or to the left, which is not preferable. | |
441 | So we insert more spaces or delete more characters in the | |
442 | following cases: if C is narrower than C2, after deleting C2, | |
443 | we fill columns with spaces, if C is wider than C2, we delete | |
444 | C2 and several characters following C2. */ | |
445 | ||
216b9443 RS |
446 | /* This is the character after point. */ |
447 | int c2 = FETCH_CHAR (PT_BYTE); | |
448 | ||
449 | /* Column the cursor should be placed at after this insertion. | |
9e4fd67b KH |
450 | The correct value should be calculated only when necessary. */ |
451 | int target_clm = 0; | |
452 | ||
37c0ed09 RS |
453 | /* Overwriting in binary-mode always replaces C2 by C. |
454 | Overwriting in textual-mode doesn't always do that. | |
455 | It inserts newlines in the usual way, | |
456 | and inserts any character at end of line | |
457 | or before a tab if it doesn't use the whole width of the tab. */ | |
9e4fd67b KH |
458 | if (EQ (overwrite, Qoverwrite_mode_binary) |
459 | || (c != '\n' | |
460 | && c2 != '\n' | |
37c0ed09 RS |
461 | && ! (c2 == '\t' |
462 | && XINT (current_buffer->tab_width) > 0 | |
463 | && XFASTINT (current_buffer->tab_width) < 20 | |
a731cae2 | 464 | && (target_clm = ((int) current_column () /* iftc */ |
06d74a65 | 465 | + XINT (Fchar_width (make_number (c)))), |
37c0ed09 | 466 | target_clm % XFASTINT (current_buffer->tab_width))))) |
9e4fd67b | 467 | { |
e744155a | 468 | int pos = PT; |
049749e6 | 469 | int pos_byte = PT_BYTE; |
e744155a | 470 | |
9e4fd67b | 471 | if (target_clm == 0) |
049749e6 | 472 | chars_to_delete = 1; |
9e4fd67b KH |
473 | else |
474 | { | |
9e4fd67b KH |
475 | /* The actual cursor position after the trial of moving |
476 | to column TARGET_CLM. It is greater than TARGET_CLM | |
477 | if the TARGET_CLM is middle of multi-column | |
478 | character. In that case, the new point is set after | |
479 | that character. */ | |
cac55749 RS |
480 | int actual_clm |
481 | = XFASTINT (Fmove_to_column (make_number (target_clm), Qnil)); | |
9e4fd67b | 482 | |
049749e6 | 483 | chars_to_delete = PT - pos; |
e744155a | 484 | |
9e4fd67b KH |
485 | if (actual_clm > target_clm) |
486 | { | |
e744155a | 487 | /* We will delete too many columns. Let's fill columns |
9e4fd67b | 488 | by spaces so that the remaining text won't move. */ |
e744155a | 489 | spaces_to_insert = actual_clm - target_clm; |
9e4fd67b KH |
490 | } |
491 | } | |
049749e6 | 492 | SET_PT_BOTH (pos, pos_byte); |
9e4fd67b KH |
493 | hairy = 2; |
494 | } | |
aa52fef9 | 495 | hairy = 2; |
cd645247 | 496 | } |
9ad8bfb0 | 497 | |
9ad8bfb0 KH |
498 | synt = SYNTAX (c); |
499 | ||
265a9e55 | 500 | if (!NILP (current_buffer->abbrev_mode) |
9ad8bfb0 | 501 | && synt != Sword |
265a9e55 | 502 | && NILP (current_buffer->read_only) |
9ad8bfb0 KH |
503 | && PT > BEGV |
504 | && (!NILP (current_buffer->enable_multibyte_characters) | |
505 | ? SYNTAX (XFASTINT (Fprevious_char ())) == Sword | |
4c0354d7 | 506 | : (SYNTAX (UNIBYTE_TO_CHAR (XFASTINT (Fprevious_char ()))) |
9ad8bfb0 | 507 | == Sword))) |
cd645247 | 508 | { |
ee8caabb | 509 | int modiff = MODIFF; |
e57640c0 RS |
510 | Lisp_Object sym; |
511 | ||
53abaf54 | 512 | sym = call0 (Qexpand_abbrev); |
e57640c0 | 513 | |
c87dbfd0 | 514 | /* If we expanded an abbrev which has a hook, |
9317a902 | 515 | and the hook has a non-nil `no-self-insert' property, |
e57640c0 | 516 | return right away--don't really self-insert. */ |
fb6b6049 | 517 | if (SYMBOLP (sym) && ! NILP (sym) && ! NILP (XSYMBOL (sym)->function) |
9317a902 | 518 | && SYMBOLP (XSYMBOL (sym)->function)) |
e57640c0 RS |
519 | { |
520 | Lisp_Object prop; | |
9317a902 | 521 | prop = Fget (XSYMBOL (sym)->function, intern ("no-self-insert")); |
e57640c0 | 522 | if (! NILP (prop)) |
6787d111 | 523 | return 1; |
e57640c0 RS |
524 | } |
525 | ||
ee8caabb | 526 | if (MODIFF != modiff) |
aa52fef9 | 527 | hairy = 2; |
cd645247 | 528 | } |
e744155a | 529 | |
049749e6 | 530 | if (chars_to_delete) |
e744155a | 531 | { |
f34206b4 | 532 | string = make_string_from_bytes (str, 1, len); |
e744155a RS |
533 | if (spaces_to_insert) |
534 | { | |
535 | tem = Fmake_string (make_number (spaces_to_insert), | |
536 | make_number (' ')); | |
537 | string = concat2 (tem, string); | |
538 | } | |
539 | ||
5f65b1b4 | 540 | replace_range (PT, PT + chars_to_delete, string, 1, 1, 1); |
1bf95511 | 541 | Fforward_char (make_number (1 + spaces_to_insert)); |
e744155a RS |
542 | } |
543 | else | |
544 | insert_and_inherit (str, len); | |
545 | ||
01428933 KH |
546 | if ((CHAR_TABLE_P (Vauto_fill_chars) |
547 | ? !NILP (CHAR_TABLE_REF (Vauto_fill_chars, c)) | |
548 | : (c == ' ' || c == '\n')) | |
cd645247 | 549 | && !noautofill |
3de15b7a | 550 | && !NILP (current_buffer->auto_fill_function)) |
cd645247 | 551 | { |
76bb6dbb KH |
552 | Lisp_Object tem; |
553 | ||
9e4fd67b | 554 | if (c == '\n') |
049749e6 RS |
555 | /* After inserting a newline, move to previous line and fill |
556 | that. Must have the newline in place already so filling and | |
557 | justification, if any, know where the end is going to be. */ | |
558 | SET_PT_BOTH (PT - 1, PT_BYTE - 1); | |
76bb6dbb | 559 | tem = call0 (current_buffer->auto_fill_function); |
4d94dd9a RS |
560 | /* Test PT < ZV in case the auto-fill-function is strange. */ |
561 | if (c == '\n' && PT < ZV) | |
049749e6 | 562 | SET_PT_BOTH (PT + 1, PT_BYTE + 1); |
76bb6dbb KH |
563 | if (!NILP (tem)) |
564 | hairy = 2; | |
cd645247 | 565 | } |
189fad68 RS |
566 | |
567 | /* If previous command specified a face to use, use it. */ | |
568 | if (!NILP (Vself_insert_face) | |
346e0c2d | 569 | && EQ (current_kboard->Vlast_command, Vself_insert_face_command)) |
189fad68 | 570 | { |
049749e6 RS |
571 | Fput_text_property (make_number (PT - 1), make_number (PT), |
572 | Qface, Vself_insert_face, Qnil); | |
189fad68 RS |
573 | Vself_insert_face = Qnil; |
574 | } | |
e744155a | 575 | |
cd645247 | 576 | if ((synt == Sclose || synt == Smath) |
2718dfa4 RS |
577 | && !NILP (Vblink_paren_function) && INTERACTIVE |
578 | && !noautofill) | |
cd645247 JB |
579 | { |
580 | call0 (Vblink_paren_function); | |
aa52fef9 | 581 | hairy = 2; |
cd645247 JB |
582 | } |
583 | return hairy; | |
584 | } | |
585 | \f | |
586 | /* module initialization */ | |
587 | ||
dfcf069d | 588 | void |
cd645247 JB |
589 | syms_of_cmds () |
590 | { | |
591 | Qkill_backward_chars = intern ("kill-backward-chars"); | |
592 | staticpro (&Qkill_backward_chars); | |
593 | ||
594 | Qkill_forward_chars = intern ("kill-forward-chars"); | |
595 | staticpro (&Qkill_forward_chars); | |
596 | ||
6bbb0d4a JB |
597 | Qoverwrite_mode_binary = intern ("overwrite-mode-binary"); |
598 | staticpro (&Qoverwrite_mode_binary); | |
e686c647 | 599 | |
53abaf54 SM |
600 | Qexpand_abbrev = intern ("expand-abbrev"); |
601 | staticpro (&Qexpand_abbrev); | |
602 | ||
189fad68 | 603 | DEFVAR_LISP ("self-insert-face", &Vself_insert_face, |
335c5470 PJ |
604 | doc: /* If non-nil, set the face of the next self-inserting character to this. |
605 | See also `self-insert-face-command'. */); | |
189fad68 RS |
606 | Vself_insert_face = Qnil; |
607 | ||
608 | DEFVAR_LISP ("self-insert-face-command", &Vself_insert_face_command, | |
335c5470 PJ |
609 | doc: /* This is the command that set up `self-insert-face'. |
610 | If `last-command' does not equal this value, we ignore `self-insert-face'. */); | |
189fad68 RS |
611 | Vself_insert_face_command = Qnil; |
612 | ||
cd645247 | 613 | DEFVAR_LISP ("blink-paren-function", &Vblink_paren_function, |
335c5470 PJ |
614 | doc: /* Function called, if non-nil, whenever a close parenthesis is inserted. |
615 | More precisely, a char with closeparen syntax is self-inserted. */); | |
cd645247 JB |
616 | Vblink_paren_function = Qnil; |
617 | ||
9e4fd67b | 618 | defsubr (&Sforward_point); |
cd645247 JB |
619 | defsubr (&Sforward_char); |
620 | defsubr (&Sbackward_char); | |
621 | defsubr (&Sforward_line); | |
622 | defsubr (&Sbeginning_of_line); | |
623 | defsubr (&Send_of_line); | |
624 | ||
625 | defsubr (&Sdelete_char); | |
626 | defsubr (&Sdelete_backward_char); | |
627 | ||
628 | defsubr (&Sself_insert_command); | |
cd645247 JB |
629 | } |
630 | ||
dfcf069d | 631 | void |
cd645247 JB |
632 | keys_of_cmds () |
633 | { | |
634 | int n; | |
635 | ||
1ac9108a | 636 | nonundocount = 0; |
cbf65115 | 637 | initial_define_key (global_map, Ctl ('I'), "self-insert-command"); |
cd645247 JB |
638 | for (n = 040; n < 0177; n++) |
639 | initial_define_key (global_map, n, "self-insert-command"); | |
cf9cdc11 RS |
640 | #ifdef MSDOS |
641 | for (n = 0200; n < 0240; n++) | |
642 | initial_define_key (global_map, n, "self-insert-command"); | |
643 | #endif | |
94748cb9 | 644 | for (n = 0240; n < 0400; n++) |
eb46da6a | 645 | initial_define_key (global_map, n, "self-insert-command"); |
cd645247 JB |
646 | |
647 | initial_define_key (global_map, Ctl ('A'), "beginning-of-line"); | |
648 | initial_define_key (global_map, Ctl ('B'), "backward-char"); | |
649 | initial_define_key (global_map, Ctl ('D'), "delete-char"); | |
650 | initial_define_key (global_map, Ctl ('E'), "end-of-line"); | |
651 | initial_define_key (global_map, Ctl ('F'), "forward-char"); | |
652 | initial_define_key (global_map, 0177, "delete-backward-char"); | |
653 | } | |
6b61353c KH |
654 | |
655 | /* arch-tag: 022ba3cd-67f9-4978-9c5d-7d2b18d8644e | |
656 | (do not change this comment) */ |