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 PJ |
50 | doc: /* Return buffer position N characters after (before if N negative) point. */) |
51 | (n) | |
9e4fd67b KH |
52 | Lisp_Object n; |
53 | { | |
b7826503 | 54 | CHECK_NUMBER (n); |
9e4fd67b | 55 | |
049749e6 | 56 | return make_number (PT + XINT (n)); |
9e4fd67b KH |
57 | } |
58 | ||
9ae750f0 | 59 | DEFUN ("forward-char", Fforward_char, Sforward_char, 0, 1, "^p", |
d20e1419 EZ |
60 | doc: /* Move point N characters forward (backward if N is negative). |
61 | On reaching end or beginning of buffer, stop and signal error. | |
62 | ||
63 | Depending on the bidirectional context, the movement may be to the | |
64 | right or to the left on the screen. This is in contrast with | |
5220357f | 65 | \\[right-char], which see. */) |
335c5470 | 66 | (n) |
72d5f589 | 67 | Lisp_Object n; |
cd645247 | 68 | { |
72d5f589 EN |
69 | if (NILP (n)) |
70 | XSETFASTINT (n, 1); | |
cd645247 | 71 | else |
b7826503 | 72 | CHECK_NUMBER (n); |
cd645247 | 73 | |
72d5f589 | 74 | /* This used to just set point to point + XINT (n), and then check |
7b502dc3 JB |
75 | to see if it was within boundaries. But now that SET_PT can |
76 | potentially do a lot of stuff (calling entering and exiting | |
77 | hooks, etcetera), that's not a good approach. So we validate the | |
78 | proposed position, then set point. */ | |
79 | { | |
049749e6 | 80 | int new_point = PT + XINT (n); |
7b502dc3 JB |
81 | |
82 | if (new_point < BEGV) | |
83 | { | |
84 | SET_PT (BEGV); | |
aaf769f1 | 85 | xsignal0 (Qbeginning_of_buffer); |
7b502dc3 JB |
86 | } |
87 | if (new_point > ZV) | |
88 | { | |
89 | SET_PT (ZV); | |
aaf769f1 | 90 | xsignal0 (Qend_of_buffer); |
7b502dc3 JB |
91 | } |
92 | ||
93 | SET_PT (new_point); | |
94 | } | |
95 | ||
cd645247 JB |
96 | return Qnil; |
97 | } | |
98 | ||
9ae750f0 | 99 | DEFUN ("backward-char", Fbackward_char, Sbackward_char, 0, 1, "^p", |
d20e1419 EZ |
100 | doc: /* Move point N characters backward (forward if N is negative). |
101 | On attempt to pass beginning or end of buffer, stop and signal error. | |
102 | ||
103 | Depending on the bidirectional context, the movement may be to the | |
104 | right or to the left on the screen. This is in contrast with | |
5220357f | 105 | \\[left-char], which see. */) |
335c5470 | 106 | (n) |
72d5f589 | 107 | Lisp_Object n; |
cd645247 | 108 | { |
72d5f589 EN |
109 | if (NILP (n)) |
110 | XSETFASTINT (n, 1); | |
cd645247 | 111 | else |
b7826503 | 112 | CHECK_NUMBER (n); |
cd645247 | 113 | |
72d5f589 EN |
114 | XSETINT (n, - XINT (n)); |
115 | return Fforward_char (n); | |
cd645247 JB |
116 | } |
117 | ||
9ae750f0 | 118 | DEFUN ("forward-line", Fforward_line, Sforward_line, 0, 1, "^p", |
335c5470 PJ |
119 | doc: /* Move N lines forward (backward if N is negative). |
120 | Precisely, if point is on line I, move to the start of line I + N. | |
121 | If there isn't room, go as far as possible (no error). | |
122 | Returns the count of lines left to move. If moving forward, | |
123 | that is N - number of lines moved; if backward, N + number moved. | |
124 | With positive N, a non-empty line at the end counts as one line | |
5220357f | 125 | successfully moved (for the return value). */) |
335c5470 | 126 | (n) |
cd645247 JB |
127 | Lisp_Object n; |
128 | { | |
049749e6 RS |
129 | int opoint = PT, opoint_byte = PT_BYTE; |
130 | int pos, pos_byte; | |
131 | int count, shortage; | |
cd645247 | 132 | |
265a9e55 | 133 | if (NILP (n)) |
cd645247 JB |
134 | count = 1; |
135 | else | |
136 | { | |
b7826503 | 137 | CHECK_NUMBER (n); |
cd645247 JB |
138 | count = XINT (n); |
139 | } | |
140 | ||
049749e6 RS |
141 | if (count <= 0) |
142 | shortage = scan_newline (PT, PT_BYTE, BEGV, BEGV_BYTE, count - 1, 1); | |
143 | else | |
144 | shortage = scan_newline (PT, PT_BYTE, ZV, ZV_BYTE, count, 1); | |
145 | ||
146 | /* Since scan_newline does TEMP_SET_PT_BOTH, | |
147 | and we want to set PT "for real", | |
148 | go back to the old point and then come back here. */ | |
149 | pos = PT; | |
150 | pos_byte = PT_BYTE; | |
151 | TEMP_SET_PT_BOTH (opoint, opoint_byte); | |
152 | SET_PT_BOTH (pos, pos_byte); | |
153 | ||
cd645247 | 154 | if (shortage > 0 |
049749e6 | 155 | && (count <= 0 |
502ddf23 | 156 | || (ZV > BEGV |
049749e6 RS |
157 | && PT != opoint |
158 | && (FETCH_BYTE (PT_BYTE - 1) != '\n')))) | |
cd645247 | 159 | shortage--; |
049749e6 RS |
160 | |
161 | return make_number (count <= 0 ? - shortage : shortage); | |
cd645247 JB |
162 | } |
163 | ||
9ae750f0 | 164 | DEFUN ("beginning-of-line", Fbeginning_of_line, Sbeginning_of_line, 0, 1, "^p", |
8abc9869 MB |
165 | doc: /* Move point to beginning of current line. |
166 | With argument N not nil or 1, move forward N - 1 lines first. | |
167 | If point reaches the beginning or end of buffer, it stops there. | |
168 | ||
13c42cc5 | 169 | This function constrains point to the current field unless this moves |
5220357f JB |
170 | point to a different line than the original, unconstrained result. |
171 | If N is nil or 1, and a front-sticky field starts at point, the point | |
13c42cc5 | 172 | does not move. To ignore field boundaries bind |
27806b20 KL |
173 | `inhibit-field-text-motion' to t, or use the `forward-line' function |
174 | instead. For instance, `(forward-line 0)' does the same thing as | |
175 | `(beginning-of-line)', except that it ignores field boundaries. */) | |
8abc9869 | 176 | (n) |
cd645247 JB |
177 | Lisp_Object n; |
178 | { | |
265a9e55 | 179 | if (NILP (n)) |
48c7cef2 | 180 | XSETFASTINT (n, 1); |
cd645247 | 181 | else |
b7826503 | 182 | CHECK_NUMBER (n); |
cd645247 | 183 | |
0aee588d | 184 | SET_PT (XINT (Fline_beginning_position (n))); |
a731cae2 | 185 | |
cd645247 JB |
186 | return Qnil; |
187 | } | |
188 | ||
9ae750f0 | 189 | DEFUN ("end-of-line", Fend_of_line, Send_of_line, 0, 1, "^p", |
8abc9869 MB |
190 | doc: /* Move point to end of current line. |
191 | With argument N not nil or 1, move forward N - 1 lines first. | |
192 | If point reaches the beginning or end of buffer, it stops there. | |
6b61353c | 193 | To ignore intangibility, bind `inhibit-point-motion-hooks' to t. |
8abc9869 | 194 | |
13c42cc5 KL |
195 | This function constrains point to the current field unless this moves |
196 | point to a different line than the original, unconstrained result. If | |
197 | N is nil or 1, and a rear-sticky field ends at point, the point does | |
198 | not move. To ignore field boundaries bind `inhibit-field-text-motion' | |
199 | to t. */) | |
8abc9869 | 200 | (n) |
cd645247 JB |
201 | Lisp_Object n; |
202 | { | |
fda3de70 RS |
203 | int newpos; |
204 | ||
265a9e55 | 205 | if (NILP (n)) |
48c7cef2 | 206 | XSETFASTINT (n, 1); |
cd645247 | 207 | else |
b7826503 | 208 | CHECK_NUMBER (n); |
cd645247 | 209 | |
fda3de70 RS |
210 | while (1) |
211 | { | |
212 | newpos = XINT (Fline_end_position (n)); | |
213 | SET_PT (newpos); | |
214 | ||
215 | if (PT > newpos | |
216 | && FETCH_CHAR (PT - 1) == '\n') | |
217 | { | |
218 | /* If we skipped over a newline that follows | |
219 | an invisible intangible run, | |
220 | move back to the last tangible position | |
221 | within the line. */ | |
222 | ||
223 | SET_PT (PT - 1); | |
224 | break; | |
225 | } | |
226 | else if (PT > newpos && PT < ZV | |
227 | && FETCH_CHAR (PT) != '\n') | |
228 | /* If we skipped something intangible | |
229 | and now we're not really at eol, | |
230 | keep going. */ | |
231 | n = make_number (1); | |
232 | else | |
233 | break; | |
234 | } | |
cd645247 JB |
235 | |
236 | return Qnil; | |
237 | } | |
238 | ||
239 | DEFUN ("delete-char", Fdelete_char, Sdelete_char, 1, 2, "p\nP", | |
335c5470 PJ |
240 | doc: /* Delete the following N characters (previous if N is negative). |
241 | Optional second arg KILLFLAG non-nil means kill instead (save in kill ring). | |
242 | Interactively, N is the prefix arg, and KILLFLAG is set if | |
243 | N was explicitly specified. */) | |
244 | (n, killflag) | |
cd645247 JB |
245 | Lisp_Object n, killflag; |
246 | { | |
9e4fd67b KH |
247 | int pos; |
248 | ||
b7826503 | 249 | CHECK_NUMBER (n); |
cd645247 | 250 | |
049749e6 | 251 | pos = PT + XINT (n); |
265a9e55 | 252 | if (NILP (killflag)) |
cd645247 JB |
253 | { |
254 | if (XINT (n) < 0) | |
255 | { | |
9e4fd67b | 256 | if (pos < BEGV) |
aaf769f1 | 257 | xsignal0 (Qbeginning_of_buffer); |
cd645247 | 258 | else |
9e4fd67b | 259 | del_range (pos, PT); |
cd645247 JB |
260 | } |
261 | else | |
262 | { | |
9e4fd67b | 263 | if (pos > ZV) |
aaf769f1 | 264 | xsignal0 (Qend_of_buffer); |
cd645247 | 265 | else |
9e4fd67b | 266 | del_range (PT, pos); |
cd645247 JB |
267 | } |
268 | } | |
269 | else | |
270 | { | |
271 | call1 (Qkill_forward_chars, n); | |
272 | } | |
273 | return Qnil; | |
274 | } | |
275 | ||
276 | DEFUN ("delete-backward-char", Fdelete_backward_char, Sdelete_backward_char, | |
335c5470 PJ |
277 | 1, 2, "p\nP", |
278 | doc: /* Delete the previous N characters (following if N is negative). | |
279 | Optional second arg KILLFLAG non-nil means kill instead (save in kill ring). | |
280 | Interactively, N is the prefix arg, and KILLFLAG is set if | |
dd9b52a6 SM |
281 | N was explicitly specified. |
282 | This is meant for interactive use only; from Lisp, better use `delete-char' | |
283 | with a negated argument. */) | |
335c5470 | 284 | (n, killflag) |
cd645247 JB |
285 | Lisp_Object n, killflag; |
286 | { | |
aa970069 | 287 | Lisp_Object value; |
7c983171 | 288 | int deleted_special = 0; |
ceb7e4f8 | 289 | int pos, pos_byte, i; |
aa970069 | 290 | |
b7826503 | 291 | CHECK_NUMBER (n); |
aa970069 | 292 | |
7c983171 | 293 | /* See if we are about to delete a tab or newline backwards. */ |
ceb7e4f8 KH |
294 | pos = PT; |
295 | pos_byte = PT_BYTE; | |
296 | for (i = 0; i < XINT (n) && pos_byte > BEGV_BYTE; i++) | |
aa970069 | 297 | { |
9e4fd67b KH |
298 | int c; |
299 | ||
ceb7e4f8 KH |
300 | DEC_BOTH (pos, pos_byte); |
301 | c = FETCH_BYTE (pos_byte); | |
9e4fd67b | 302 | if (c == '\t' || c == '\n') |
aa970069 | 303 | { |
7c983171 | 304 | deleted_special = 1; |
aa970069 RS |
305 | break; |
306 | } | |
307 | } | |
308 | ||
aa970069 RS |
309 | /* In overwrite mode, back over columns while clearing them out, |
310 | unless at end of line. */ | |
311 | if (XINT (n) > 0 | |
312 | && ! NILP (current_buffer->overwrite_mode) | |
7c983171 | 313 | && ! deleted_special |
049749e6 | 314 | && ! (PT == ZV || FETCH_BYTE (PT_BYTE) == '\n')) |
aa970069 | 315 | { |
a731cae2 | 316 | int column = (int) current_column (); /* iftc */ |
9e4fd67b KH |
317 | |
318 | value = Fdelete_char (make_number (-XINT (n)), killflag); | |
a731cae2 | 319 | i = column - (int) current_column (); /* iftc */ |
cac55749 | 320 | Finsert_char (make_number (' '), make_number (i), Qnil); |
049749e6 RS |
321 | /* Whitespace chars are ASCII chars, so we can simply subtract. */ |
322 | SET_PT_BOTH (PT - i, PT_BYTE - i); | |
aa970069 | 323 | } |
9e4fd67b KH |
324 | else |
325 | value = Fdelete_char (make_number (-XINT (n)), killflag); | |
aa970069 RS |
326 | |
327 | return value; | |
cd645247 JB |
328 | } |
329 | ||
855a0da7 | 330 | static int nonundocount; |
1ac9108a | 331 | |
867d5263 DL |
332 | /* Note that there's code in command_loop_1 which typically avoids |
333 | calling this. */ | |
cd645247 | 334 | DEFUN ("self-insert-command", Fself_insert_command, Sself_insert_command, 1, 1, "p", |
335c5470 | 335 | doc: /* Insert the character you type. |
1ac9108a SM |
336 | Whichever character you type to run this command is inserted. |
337 | Before insertion, `expand-abbrev' is executed if the inserted character does | |
338 | not have word syntax and the previous character in the buffer does. | |
339 | After insertion, the value of `auto-fill-function' is called if the | |
340 | `auto-fill-chars' table has a non-nil value for the inserted character. */) | |
335c5470 | 341 | (n) |
72d5f589 | 342 | Lisp_Object n; |
cd645247 | 343 | { |
1ac9108a | 344 | int remove_boundary = 1; |
b0ca0f33 | 345 | CHECK_NUMBER (n); |
1ac9108a SM |
346 | |
347 | if (!EQ (Vthis_command, current_kboard->Vlast_command)) | |
348 | nonundocount = 0; | |
349 | ||
350 | if (NILP (Vexecuting_kbd_macro) | |
351 | && !EQ (minibuf_window, selected_window)) | |
352 | { | |
353 | if (nonundocount <= 0 || nonundocount >= 20) | |
354 | { | |
355 | remove_boundary = 0; | |
356 | nonundocount = 0; | |
357 | } | |
358 | nonundocount++; | |
359 | } | |
360 | ||
361 | if (remove_boundary | |
362 | && CONSP (current_buffer->undo_list) | |
363 | && NILP (XCAR (current_buffer->undo_list))) | |
364 | /* Remove the undo_boundary that was just pushed. */ | |
365 | current_buffer->undo_list = XCDR (current_buffer->undo_list); | |
cd645247 JB |
366 | |
367 | /* Barf if the key that invoked this was not a character. */ | |
a31e445e | 368 | if (!CHARACTERP (last_command_event)) |
cd645247 | 369 | bitch_at_user (); |
867d5263 DL |
370 | { |
371 | int character = translate_char (Vtranslation_table_for_input, | |
a31e445e | 372 | XINT (last_command_event)); |
867d5263 | 373 | if (XINT (n) >= 2 && NILP (current_buffer->overwrite_mode)) |
cd645247 | 374 | { |
867d5263 DL |
375 | XSETFASTINT (n, XFASTINT (n) - 2); |
376 | /* The first one might want to expand an abbrev. */ | |
377 | internal_self_insert (character, 1); | |
378 | /* The bulk of the copies of this char can be inserted simply. | |
379 | We don't have to handle a user-specified face specially | |
380 | because it will get inherited from the first char inserted. */ | |
ef73e7be | 381 | Finsert_char (make_number (character), n, Qt); |
867d5263 DL |
382 | /* The last one might want to auto-fill. */ |
383 | internal_self_insert (character, 0); | |
cd645247 | 384 | } |
867d5263 DL |
385 | else |
386 | while (XINT (n) > 0) | |
387 | { | |
1ac9108a | 388 | int val; |
867d5263 DL |
389 | /* Ok since old and new vals both nonneg */ |
390 | XSETFASTINT (n, XFASTINT (n) - 1); | |
1ac9108a SM |
391 | val = internal_self_insert (character, XFASTINT (n) != 0); |
392 | if (val == 2) | |
393 | nonundocount = 0; | |
394 | frame_make_pointer_invisible (); | |
867d5263 DL |
395 | } |
396 | } | |
cd645247 JB |
397 | |
398 | return Qnil; | |
399 | } | |
400 | ||
9e4fd67b | 401 | /* Insert character C. If NOAUTOFILL is nonzero, don't do autofill |
4c6e656f RS |
402 | even if it is enabled. |
403 | ||
404 | If this insertion is suitable for direct output (completely simple), | |
aa52fef9 RS |
405 | return 0. A value of 1 indicates this *might* not have been simple. |
406 | A value of 2 means this did things that call for an undo boundary. */ | |
4c6e656f | 407 | |
53abaf54 SM |
408 | static Lisp_Object Qexpand_abbrev; |
409 | ||
dfcf069d | 410 | int |
9e4fd67b KH |
411 | internal_self_insert (c, noautofill) |
412 | int c; | |
cd645247 JB |
413 | int noautofill; |
414 | { | |
cd645247 JB |
415 | int hairy = 0; |
416 | Lisp_Object tem; | |
417 | register enum syntaxcode synt; | |
e744155a | 418 | Lisp_Object overwrite, string; |
9e4fd67b KH |
419 | /* Length of multi-byte form of C. */ |
420 | int len; | |
421 | /* Working buffer and pointer for multi-byte form of C. */ | |
e55d9cfd | 422 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
049749e6 | 423 | int chars_to_delete = 0; |
e744155a | 424 | int spaces_to_insert = 0; |
cd645247 | 425 | |
e7aacab7 | 426 | overwrite = current_buffer->overwrite_mode; |
ad44dffe | 427 | if (!NILP (Vbefore_change_functions) || !NILP (Vafter_change_functions)) |
cd645247 JB |
428 | hairy = 1; |
429 | ||
9e4fd67b KH |
430 | /* At first, get multi-byte form of C in STR. */ |
431 | if (!NILP (current_buffer->enable_multibyte_characters)) | |
b9859007 | 432 | { |
e55d9cfd | 433 | len = CHAR_STRING (c, str); |
741263c2 KH |
434 | if (len == 1) |
435 | /* If C has modifier bits, this makes C an appropriate | |
436 | one-byte char. */ | |
437 | c = *str; | |
b9859007 | 438 | } |
9e4fd67b | 439 | else |
38b62842 | 440 | { |
e55d9cfd KH |
441 | str[0] = (SINGLE_BYTE_CHAR_P (c) |
442 | ? c | |
443 | : multibyte_char_to_unibyte (c, Qnil)); | |
38b62842 KH |
444 | len = 1; |
445 | } | |
6bbb0d4a | 446 | if (!NILP (overwrite) |
9e4fd67b | 447 | && PT < ZV) |
cd645247 | 448 | { |
9e4fd67b KH |
449 | /* In overwrite-mode, we substitute a character at point (C2, |
450 | hereafter) by C. For that, we delete C2 in advance. But, | |
451 | just substituting C2 by C may move a remaining text in the | |
452 | line to the right or to the left, which is not preferable. | |
453 | So we insert more spaces or delete more characters in the | |
454 | following cases: if C is narrower than C2, after deleting C2, | |
455 | we fill columns with spaces, if C is wider than C2, we delete | |
456 | C2 and several characters following C2. */ | |
457 | ||
216b9443 RS |
458 | /* This is the character after point. */ |
459 | int c2 = FETCH_CHAR (PT_BYTE); | |
460 | ||
461 | /* Column the cursor should be placed at after this insertion. | |
9e4fd67b KH |
462 | The correct value should be calculated only when necessary. */ |
463 | int target_clm = 0; | |
464 | ||
37c0ed09 RS |
465 | /* Overwriting in binary-mode always replaces C2 by C. |
466 | Overwriting in textual-mode doesn't always do that. | |
467 | It inserts newlines in the usual way, | |
468 | and inserts any character at end of line | |
469 | or before a tab if it doesn't use the whole width of the tab. */ | |
9e4fd67b KH |
470 | if (EQ (overwrite, Qoverwrite_mode_binary) |
471 | || (c != '\n' | |
472 | && c2 != '\n' | |
37c0ed09 RS |
473 | && ! (c2 == '\t' |
474 | && XINT (current_buffer->tab_width) > 0 | |
475 | && XFASTINT (current_buffer->tab_width) < 20 | |
a731cae2 | 476 | && (target_clm = ((int) current_column () /* iftc */ |
06d74a65 | 477 | + XINT (Fchar_width (make_number (c)))), |
37c0ed09 | 478 | target_clm % XFASTINT (current_buffer->tab_width))))) |
9e4fd67b | 479 | { |
e744155a | 480 | int pos = PT; |
049749e6 | 481 | int pos_byte = PT_BYTE; |
e744155a | 482 | |
9e4fd67b | 483 | if (target_clm == 0) |
049749e6 | 484 | chars_to_delete = 1; |
9e4fd67b KH |
485 | else |
486 | { | |
9e4fd67b KH |
487 | /* The actual cursor position after the trial of moving |
488 | to column TARGET_CLM. It is greater than TARGET_CLM | |
489 | if the TARGET_CLM is middle of multi-column | |
490 | character. In that case, the new point is set after | |
491 | that character. */ | |
cac55749 RS |
492 | int actual_clm |
493 | = XFASTINT (Fmove_to_column (make_number (target_clm), Qnil)); | |
9e4fd67b | 494 | |
049749e6 | 495 | chars_to_delete = PT - pos; |
e744155a | 496 | |
9e4fd67b KH |
497 | if (actual_clm > target_clm) |
498 | { | |
e744155a | 499 | /* We will delete too many columns. Let's fill columns |
9e4fd67b | 500 | by spaces so that the remaining text won't move. */ |
e744155a | 501 | spaces_to_insert = actual_clm - target_clm; |
9e4fd67b KH |
502 | } |
503 | } | |
049749e6 | 504 | SET_PT_BOTH (pos, pos_byte); |
9e4fd67b KH |
505 | hairy = 2; |
506 | } | |
aa52fef9 | 507 | hairy = 2; |
cd645247 | 508 | } |
9ad8bfb0 | 509 | |
9ad8bfb0 KH |
510 | synt = SYNTAX (c); |
511 | ||
265a9e55 | 512 | if (!NILP (current_buffer->abbrev_mode) |
9ad8bfb0 | 513 | && synt != Sword |
265a9e55 | 514 | && NILP (current_buffer->read_only) |
9ad8bfb0 KH |
515 | && PT > BEGV |
516 | && (!NILP (current_buffer->enable_multibyte_characters) | |
517 | ? SYNTAX (XFASTINT (Fprevious_char ())) == Sword | |
4c0354d7 | 518 | : (SYNTAX (UNIBYTE_TO_CHAR (XFASTINT (Fprevious_char ()))) |
9ad8bfb0 | 519 | == Sword))) |
cd645247 | 520 | { |
ee8caabb | 521 | int modiff = MODIFF; |
e57640c0 RS |
522 | Lisp_Object sym; |
523 | ||
53abaf54 | 524 | sym = call0 (Qexpand_abbrev); |
e57640c0 | 525 | |
c87dbfd0 | 526 | /* If we expanded an abbrev which has a hook, |
9317a902 | 527 | and the hook has a non-nil `no-self-insert' property, |
e57640c0 | 528 | return right away--don't really self-insert. */ |
fb6b6049 | 529 | if (SYMBOLP (sym) && ! NILP (sym) && ! NILP (XSYMBOL (sym)->function) |
9317a902 | 530 | && SYMBOLP (XSYMBOL (sym)->function)) |
e57640c0 RS |
531 | { |
532 | Lisp_Object prop; | |
9317a902 | 533 | prop = Fget (XSYMBOL (sym)->function, intern ("no-self-insert")); |
e57640c0 | 534 | if (! NILP (prop)) |
6787d111 | 535 | return 1; |
e57640c0 RS |
536 | } |
537 | ||
ee8caabb | 538 | if (MODIFF != modiff) |
aa52fef9 | 539 | hairy = 2; |
cd645247 | 540 | } |
e744155a | 541 | |
049749e6 | 542 | if (chars_to_delete) |
e744155a | 543 | { |
f34206b4 | 544 | string = make_string_from_bytes (str, 1, len); |
e744155a RS |
545 | if (spaces_to_insert) |
546 | { | |
547 | tem = Fmake_string (make_number (spaces_to_insert), | |
548 | make_number (' ')); | |
549 | string = concat2 (tem, string); | |
550 | } | |
551 | ||
5f65b1b4 | 552 | replace_range (PT, PT + chars_to_delete, string, 1, 1, 1); |
1bf95511 | 553 | Fforward_char (make_number (1 + spaces_to_insert)); |
e744155a RS |
554 | } |
555 | else | |
556 | insert_and_inherit (str, len); | |
557 | ||
01428933 KH |
558 | if ((CHAR_TABLE_P (Vauto_fill_chars) |
559 | ? !NILP (CHAR_TABLE_REF (Vauto_fill_chars, c)) | |
560 | : (c == ' ' || c == '\n')) | |
cd645247 | 561 | && !noautofill |
3de15b7a | 562 | && !NILP (current_buffer->auto_fill_function)) |
cd645247 | 563 | { |
76bb6dbb KH |
564 | Lisp_Object tem; |
565 | ||
9e4fd67b | 566 | if (c == '\n') |
049749e6 RS |
567 | /* After inserting a newline, move to previous line and fill |
568 | that. Must have the newline in place already so filling and | |
569 | justification, if any, know where the end is going to be. */ | |
570 | SET_PT_BOTH (PT - 1, PT_BYTE - 1); | |
76bb6dbb | 571 | tem = call0 (current_buffer->auto_fill_function); |
4d94dd9a RS |
572 | /* Test PT < ZV in case the auto-fill-function is strange. */ |
573 | if (c == '\n' && PT < ZV) | |
049749e6 | 574 | SET_PT_BOTH (PT + 1, PT_BYTE + 1); |
76bb6dbb KH |
575 | if (!NILP (tem)) |
576 | hairy = 2; | |
cd645247 | 577 | } |
189fad68 RS |
578 | |
579 | /* If previous command specified a face to use, use it. */ | |
580 | if (!NILP (Vself_insert_face) | |
346e0c2d | 581 | && EQ (current_kboard->Vlast_command, Vself_insert_face_command)) |
189fad68 | 582 | { |
049749e6 RS |
583 | Fput_text_property (make_number (PT - 1), make_number (PT), |
584 | Qface, Vself_insert_face, Qnil); | |
189fad68 RS |
585 | Vself_insert_face = Qnil; |
586 | } | |
e744155a | 587 | |
cd645247 | 588 | if ((synt == Sclose || synt == Smath) |
2718dfa4 RS |
589 | && !NILP (Vblink_paren_function) && INTERACTIVE |
590 | && !noautofill) | |
cd645247 JB |
591 | { |
592 | call0 (Vblink_paren_function); | |
aa52fef9 | 593 | hairy = 2; |
cd645247 JB |
594 | } |
595 | return hairy; | |
596 | } | |
597 | \f | |
598 | /* module initialization */ | |
599 | ||
dfcf069d | 600 | void |
cd645247 JB |
601 | syms_of_cmds () |
602 | { | |
d67b4f80 | 603 | Qkill_backward_chars = intern_c_string ("kill-backward-chars"); |
cd645247 JB |
604 | staticpro (&Qkill_backward_chars); |
605 | ||
d67b4f80 | 606 | Qkill_forward_chars = intern_c_string ("kill-forward-chars"); |
cd645247 JB |
607 | staticpro (&Qkill_forward_chars); |
608 | ||
d67b4f80 | 609 | Qoverwrite_mode_binary = intern_c_string ("overwrite-mode-binary"); |
6bbb0d4a | 610 | staticpro (&Qoverwrite_mode_binary); |
e686c647 | 611 | |
d67b4f80 | 612 | Qexpand_abbrev = intern_c_string ("expand-abbrev"); |
53abaf54 SM |
613 | staticpro (&Qexpand_abbrev); |
614 | ||
189fad68 | 615 | DEFVAR_LISP ("self-insert-face", &Vself_insert_face, |
335c5470 PJ |
616 | doc: /* If non-nil, set the face of the next self-inserting character to this. |
617 | See also `self-insert-face-command'. */); | |
189fad68 RS |
618 | Vself_insert_face = Qnil; |
619 | ||
620 | DEFVAR_LISP ("self-insert-face-command", &Vself_insert_face_command, | |
335c5470 PJ |
621 | doc: /* This is the command that set up `self-insert-face'. |
622 | If `last-command' does not equal this value, we ignore `self-insert-face'. */); | |
189fad68 RS |
623 | Vself_insert_face_command = Qnil; |
624 | ||
cd645247 | 625 | DEFVAR_LISP ("blink-paren-function", &Vblink_paren_function, |
335c5470 PJ |
626 | doc: /* Function called, if non-nil, whenever a close parenthesis is inserted. |
627 | More precisely, a char with closeparen syntax is self-inserted. */); | |
cd645247 JB |
628 | Vblink_paren_function = Qnil; |
629 | ||
9e4fd67b | 630 | defsubr (&Sforward_point); |
cd645247 JB |
631 | defsubr (&Sforward_char); |
632 | defsubr (&Sbackward_char); | |
633 | defsubr (&Sforward_line); | |
634 | defsubr (&Sbeginning_of_line); | |
635 | defsubr (&Send_of_line); | |
636 | ||
637 | defsubr (&Sdelete_char); | |
638 | defsubr (&Sdelete_backward_char); | |
639 | ||
640 | defsubr (&Sself_insert_command); | |
cd645247 JB |
641 | } |
642 | ||
dfcf069d | 643 | void |
cd645247 JB |
644 | keys_of_cmds () |
645 | { | |
646 | int n; | |
647 | ||
1ac9108a | 648 | nonundocount = 0; |
cbf65115 | 649 | initial_define_key (global_map, Ctl ('I'), "self-insert-command"); |
cd645247 JB |
650 | for (n = 040; n < 0177; n++) |
651 | initial_define_key (global_map, n, "self-insert-command"); | |
cf9cdc11 RS |
652 | #ifdef MSDOS |
653 | for (n = 0200; n < 0240; n++) | |
654 | initial_define_key (global_map, n, "self-insert-command"); | |
655 | #endif | |
94748cb9 | 656 | for (n = 0240; n < 0400; n++) |
eb46da6a | 657 | initial_define_key (global_map, n, "self-insert-command"); |
cd645247 JB |
658 | |
659 | initial_define_key (global_map, Ctl ('A'), "beginning-of-line"); | |
660 | initial_define_key (global_map, Ctl ('B'), "backward-char"); | |
661 | initial_define_key (global_map, Ctl ('D'), "delete-char"); | |
662 | initial_define_key (global_map, Ctl ('E'), "end-of-line"); | |
663 | initial_define_key (global_map, Ctl ('F'), "forward-char"); | |
664 | initial_define_key (global_map, 0177, "delete-backward-char"); | |
665 | } | |
6b61353c KH |
666 | |
667 | /* arch-tag: 022ba3cd-67f9-4978-9c5d-7d2b18d8644e | |
668 | (do not change this comment) */ |