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 | ||
c8197983 | 46 | static int internal_self_insert (int, int); |
cd645247 | 47 | \f |
9e4fd67b | 48 | DEFUN ("forward-point", Fforward_point, Sforward_point, 1, 1, 0, |
335c5470 | 49 | doc: /* Return buffer position N characters after (before if N negative) point. */) |
5842a27b | 50 | (Lisp_Object n) |
9e4fd67b | 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", |
d20e1419 EZ |
58 | doc: /* Move point N characters forward (backward if N is negative). |
59 | On reaching end or beginning of buffer, stop and signal error. | |
60 | ||
61 | Depending on the bidirectional context, the movement may be to the | |
62 | right or to the left on the screen. This is in contrast with | |
5220357f | 63 | \\[right-char], which see. */) |
5842a27b | 64 | (Lisp_Object n) |
cd645247 | 65 | { |
72d5f589 EN |
66 | if (NILP (n)) |
67 | XSETFASTINT (n, 1); | |
cd645247 | 68 | else |
b7826503 | 69 | CHECK_NUMBER (n); |
cd645247 | 70 | |
72d5f589 | 71 | /* This used to just set point to point + XINT (n), and then check |
7b502dc3 JB |
72 | to see if it was within boundaries. But now that SET_PT can |
73 | potentially do a lot of stuff (calling entering and exiting | |
74 | hooks, etcetera), that's not a good approach. So we validate the | |
75 | proposed position, then set point. */ | |
76 | { | |
049749e6 | 77 | int new_point = PT + XINT (n); |
7b502dc3 JB |
78 | |
79 | if (new_point < BEGV) | |
80 | { | |
81 | SET_PT (BEGV); | |
aaf769f1 | 82 | xsignal0 (Qbeginning_of_buffer); |
7b502dc3 JB |
83 | } |
84 | if (new_point > ZV) | |
85 | { | |
86 | SET_PT (ZV); | |
aaf769f1 | 87 | xsignal0 (Qend_of_buffer); |
7b502dc3 JB |
88 | } |
89 | ||
90 | SET_PT (new_point); | |
91 | } | |
92 | ||
cd645247 JB |
93 | return Qnil; |
94 | } | |
95 | ||
9ae750f0 | 96 | DEFUN ("backward-char", Fbackward_char, Sbackward_char, 0, 1, "^p", |
d20e1419 EZ |
97 | doc: /* Move point N characters backward (forward if N is negative). |
98 | On attempt to pass beginning or end of buffer, stop and signal error. | |
99 | ||
100 | Depending on the bidirectional context, the movement may be to the | |
101 | right or to the left on the screen. This is in contrast with | |
5220357f | 102 | \\[left-char], which see. */) |
5842a27b | 103 | (Lisp_Object n) |
cd645247 | 104 | { |
72d5f589 EN |
105 | if (NILP (n)) |
106 | XSETFASTINT (n, 1); | |
cd645247 | 107 | else |
b7826503 | 108 | CHECK_NUMBER (n); |
cd645247 | 109 | |
72d5f589 EN |
110 | XSETINT (n, - XINT (n)); |
111 | return Fforward_char (n); | |
cd645247 JB |
112 | } |
113 | ||
9ae750f0 | 114 | DEFUN ("forward-line", Fforward_line, Sforward_line, 0, 1, "^p", |
335c5470 PJ |
115 | doc: /* Move N lines forward (backward if N is negative). |
116 | Precisely, if point is on line I, move to the start of line I + N. | |
117 | If there isn't room, go as far as possible (no error). | |
118 | Returns the count of lines left to move. If moving forward, | |
119 | that is N - number of lines moved; if backward, N + number moved. | |
120 | With positive N, a non-empty line at the end counts as one line | |
5220357f | 121 | successfully moved (for the return value). */) |
5842a27b | 122 | (Lisp_Object n) |
cd645247 | 123 | { |
049749e6 RS |
124 | int opoint = PT, opoint_byte = PT_BYTE; |
125 | int pos, pos_byte; | |
126 | int count, shortage; | |
cd645247 | 127 | |
265a9e55 | 128 | if (NILP (n)) |
cd645247 JB |
129 | count = 1; |
130 | else | |
131 | { | |
b7826503 | 132 | CHECK_NUMBER (n); |
cd645247 JB |
133 | count = XINT (n); |
134 | } | |
135 | ||
049749e6 RS |
136 | if (count <= 0) |
137 | shortage = scan_newline (PT, PT_BYTE, BEGV, BEGV_BYTE, count - 1, 1); | |
138 | else | |
139 | shortage = scan_newline (PT, PT_BYTE, ZV, ZV_BYTE, count, 1); | |
140 | ||
141 | /* Since scan_newline does TEMP_SET_PT_BOTH, | |
142 | and we want to set PT "for real", | |
143 | go back to the old point and then come back here. */ | |
144 | pos = PT; | |
145 | pos_byte = PT_BYTE; | |
146 | TEMP_SET_PT_BOTH (opoint, opoint_byte); | |
147 | SET_PT_BOTH (pos, pos_byte); | |
148 | ||
cd645247 | 149 | if (shortage > 0 |
049749e6 | 150 | && (count <= 0 |
502ddf23 | 151 | || (ZV > BEGV |
049749e6 RS |
152 | && PT != opoint |
153 | && (FETCH_BYTE (PT_BYTE - 1) != '\n')))) | |
cd645247 | 154 | shortage--; |
049749e6 RS |
155 | |
156 | return make_number (count <= 0 ? - shortage : shortage); | |
cd645247 JB |
157 | } |
158 | ||
9ae750f0 | 159 | DEFUN ("beginning-of-line", Fbeginning_of_line, Sbeginning_of_line, 0, 1, "^p", |
8abc9869 MB |
160 | doc: /* Move point to beginning of current line. |
161 | With argument N not nil or 1, move forward N - 1 lines first. | |
162 | If point reaches the beginning or end of buffer, it stops there. | |
163 | ||
13c42cc5 | 164 | This function constrains point to the current field unless this moves |
5220357f JB |
165 | point to a different line than the original, unconstrained result. |
166 | If N is nil or 1, and a front-sticky field starts at point, the point | |
13c42cc5 | 167 | does not move. To ignore field boundaries bind |
27806b20 KL |
168 | `inhibit-field-text-motion' to t, or use the `forward-line' function |
169 | instead. For instance, `(forward-line 0)' does the same thing as | |
170 | `(beginning-of-line)', except that it ignores field boundaries. */) | |
5842a27b | 171 | (Lisp_Object n) |
cd645247 | 172 | { |
265a9e55 | 173 | if (NILP (n)) |
48c7cef2 | 174 | XSETFASTINT (n, 1); |
cd645247 | 175 | else |
b7826503 | 176 | CHECK_NUMBER (n); |
cd645247 | 177 | |
0aee588d | 178 | SET_PT (XINT (Fline_beginning_position (n))); |
a731cae2 | 179 | |
cd645247 JB |
180 | return Qnil; |
181 | } | |
182 | ||
9ae750f0 | 183 | DEFUN ("end-of-line", Fend_of_line, Send_of_line, 0, 1, "^p", |
8abc9869 MB |
184 | doc: /* Move point to end of current line. |
185 | With argument N not nil or 1, move forward N - 1 lines first. | |
186 | If point reaches the beginning or end of buffer, it stops there. | |
6b61353c | 187 | To ignore intangibility, bind `inhibit-point-motion-hooks' to t. |
8abc9869 | 188 | |
13c42cc5 KL |
189 | This function constrains point to the current field unless this moves |
190 | point to a different line than the original, unconstrained result. If | |
191 | N is nil or 1, and a rear-sticky field ends at point, the point does | |
192 | not move. To ignore field boundaries bind `inhibit-field-text-motion' | |
193 | to t. */) | |
5842a27b | 194 | (Lisp_Object n) |
cd645247 | 195 | { |
fda3de70 RS |
196 | int newpos; |
197 | ||
265a9e55 | 198 | if (NILP (n)) |
48c7cef2 | 199 | XSETFASTINT (n, 1); |
cd645247 | 200 | else |
b7826503 | 201 | CHECK_NUMBER (n); |
cd645247 | 202 | |
fda3de70 RS |
203 | while (1) |
204 | { | |
205 | newpos = XINT (Fline_end_position (n)); | |
206 | SET_PT (newpos); | |
207 | ||
208 | if (PT > newpos | |
209 | && FETCH_CHAR (PT - 1) == '\n') | |
210 | { | |
211 | /* If we skipped over a newline that follows | |
212 | an invisible intangible run, | |
213 | move back to the last tangible position | |
214 | within the line. */ | |
215 | ||
216 | SET_PT (PT - 1); | |
217 | break; | |
218 | } | |
219 | else if (PT > newpos && PT < ZV | |
220 | && FETCH_CHAR (PT) != '\n') | |
221 | /* If we skipped something intangible | |
222 | and now we're not really at eol, | |
223 | keep going. */ | |
224 | n = make_number (1); | |
225 | else | |
226 | break; | |
227 | } | |
cd645247 JB |
228 | |
229 | return Qnil; | |
230 | } | |
231 | ||
232 | DEFUN ("delete-char", Fdelete_char, Sdelete_char, 1, 2, "p\nP", | |
335c5470 PJ |
233 | doc: /* Delete the following N characters (previous if N is negative). |
234 | Optional second arg KILLFLAG non-nil means kill instead (save in kill ring). | |
235 | Interactively, N is the prefix arg, and KILLFLAG is set if | |
b9229673 CY |
236 | N was explicitly specified. |
237 | ||
238 | The command `delete-forward' is preferable for interactive use. */) | |
5842a27b | 239 | (Lisp_Object n, Lisp_Object killflag) |
cd645247 | 240 | { |
9e4fd67b KH |
241 | int pos; |
242 | ||
b7826503 | 243 | CHECK_NUMBER (n); |
cd645247 | 244 | |
049749e6 | 245 | pos = PT + XINT (n); |
265a9e55 | 246 | if (NILP (killflag)) |
cd645247 JB |
247 | { |
248 | if (XINT (n) < 0) | |
249 | { | |
9e4fd67b | 250 | if (pos < BEGV) |
aaf769f1 | 251 | xsignal0 (Qbeginning_of_buffer); |
cd645247 | 252 | else |
9e4fd67b | 253 | del_range (pos, PT); |
cd645247 JB |
254 | } |
255 | else | |
256 | { | |
9e4fd67b | 257 | if (pos > ZV) |
aaf769f1 | 258 | xsignal0 (Qend_of_buffer); |
cd645247 | 259 | else |
9e4fd67b | 260 | del_range (PT, pos); |
cd645247 JB |
261 | } |
262 | } | |
263 | else | |
264 | { | |
265 | call1 (Qkill_forward_chars, n); | |
266 | } | |
267 | return Qnil; | |
268 | } | |
269 | ||
855a0da7 | 270 | static int nonundocount; |
1ac9108a | 271 | |
867d5263 DL |
272 | /* Note that there's code in command_loop_1 which typically avoids |
273 | calling this. */ | |
cd645247 | 274 | DEFUN ("self-insert-command", Fself_insert_command, Sself_insert_command, 1, 1, "p", |
335c5470 | 275 | doc: /* Insert the character you type. |
1ac9108a SM |
276 | Whichever character you type to run this command is inserted. |
277 | Before insertion, `expand-abbrev' is executed if the inserted character does | |
278 | not have word syntax and the previous character in the buffer does. | |
279 | After insertion, the value of `auto-fill-function' is called if the | |
280 | `auto-fill-chars' table has a non-nil value for the inserted character. */) | |
5842a27b | 281 | (Lisp_Object n) |
cd645247 | 282 | { |
1ac9108a | 283 | int remove_boundary = 1; |
b0ca0f33 | 284 | CHECK_NUMBER (n); |
1ac9108a SM |
285 | |
286 | if (!EQ (Vthis_command, current_kboard->Vlast_command)) | |
287 | nonundocount = 0; | |
288 | ||
289 | if (NILP (Vexecuting_kbd_macro) | |
290 | && !EQ (minibuf_window, selected_window)) | |
291 | { | |
292 | if (nonundocount <= 0 || nonundocount >= 20) | |
293 | { | |
294 | remove_boundary = 0; | |
295 | nonundocount = 0; | |
296 | } | |
297 | nonundocount++; | |
298 | } | |
299 | ||
300 | if (remove_boundary | |
301 | && CONSP (current_buffer->undo_list) | |
302 | && NILP (XCAR (current_buffer->undo_list))) | |
303 | /* Remove the undo_boundary that was just pushed. */ | |
304 | current_buffer->undo_list = XCDR (current_buffer->undo_list); | |
cd645247 JB |
305 | |
306 | /* Barf if the key that invoked this was not a character. */ | |
a31e445e | 307 | if (!CHARACTERP (last_command_event)) |
cd645247 | 308 | bitch_at_user (); |
867d5263 DL |
309 | { |
310 | int character = translate_char (Vtranslation_table_for_input, | |
a31e445e | 311 | XINT (last_command_event)); |
867d5263 | 312 | if (XINT (n) >= 2 && NILP (current_buffer->overwrite_mode)) |
cd645247 | 313 | { |
867d5263 DL |
314 | XSETFASTINT (n, XFASTINT (n) - 2); |
315 | /* The first one might want to expand an abbrev. */ | |
316 | internal_self_insert (character, 1); | |
317 | /* The bulk of the copies of this char can be inserted simply. | |
318 | We don't have to handle a user-specified face specially | |
319 | because it will get inherited from the first char inserted. */ | |
ef73e7be | 320 | Finsert_char (make_number (character), n, Qt); |
867d5263 DL |
321 | /* The last one might want to auto-fill. */ |
322 | internal_self_insert (character, 0); | |
cd645247 | 323 | } |
867d5263 DL |
324 | else |
325 | while (XINT (n) > 0) | |
326 | { | |
1ac9108a | 327 | int val; |
867d5263 DL |
328 | /* Ok since old and new vals both nonneg */ |
329 | XSETFASTINT (n, XFASTINT (n) - 1); | |
1ac9108a SM |
330 | val = internal_self_insert (character, XFASTINT (n) != 0); |
331 | if (val == 2) | |
332 | nonundocount = 0; | |
333 | frame_make_pointer_invisible (); | |
867d5263 DL |
334 | } |
335 | } | |
cd645247 JB |
336 | |
337 | return Qnil; | |
338 | } | |
339 | ||
9e4fd67b | 340 | /* Insert character C. If NOAUTOFILL is nonzero, don't do autofill |
4c6e656f RS |
341 | even if it is enabled. |
342 | ||
343 | If this insertion is suitable for direct output (completely simple), | |
aa52fef9 RS |
344 | return 0. A value of 1 indicates this *might* not have been simple. |
345 | A value of 2 means this did things that call for an undo boundary. */ | |
4c6e656f | 346 | |
53abaf54 SM |
347 | static Lisp_Object Qexpand_abbrev; |
348 | ||
c8197983 | 349 | static int |
971de7fb | 350 | internal_self_insert (int c, int noautofill) |
cd645247 | 351 | { |
cd645247 JB |
352 | int hairy = 0; |
353 | Lisp_Object tem; | |
354 | register enum syntaxcode synt; | |
e744155a | 355 | Lisp_Object overwrite, string; |
9e4fd67b KH |
356 | /* Length of multi-byte form of C. */ |
357 | int len; | |
358 | /* Working buffer and pointer for multi-byte form of C. */ | |
e55d9cfd | 359 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
049749e6 | 360 | int chars_to_delete = 0; |
e744155a | 361 | int spaces_to_insert = 0; |
cd645247 | 362 | |
e7aacab7 | 363 | overwrite = current_buffer->overwrite_mode; |
ad44dffe | 364 | if (!NILP (Vbefore_change_functions) || !NILP (Vafter_change_functions)) |
cd645247 JB |
365 | hairy = 1; |
366 | ||
9e4fd67b KH |
367 | /* At first, get multi-byte form of C in STR. */ |
368 | if (!NILP (current_buffer->enable_multibyte_characters)) | |
b9859007 | 369 | { |
e55d9cfd | 370 | len = CHAR_STRING (c, str); |
741263c2 KH |
371 | if (len == 1) |
372 | /* If C has modifier bits, this makes C an appropriate | |
373 | one-byte char. */ | |
374 | c = *str; | |
b9859007 | 375 | } |
9e4fd67b | 376 | else |
38b62842 | 377 | { |
e55d9cfd KH |
378 | str[0] = (SINGLE_BYTE_CHAR_P (c) |
379 | ? c | |
380 | : multibyte_char_to_unibyte (c, Qnil)); | |
38b62842 KH |
381 | len = 1; |
382 | } | |
6bbb0d4a | 383 | if (!NILP (overwrite) |
9e4fd67b | 384 | && PT < ZV) |
cd645247 | 385 | { |
9e4fd67b KH |
386 | /* In overwrite-mode, we substitute a character at point (C2, |
387 | hereafter) by C. For that, we delete C2 in advance. But, | |
388 | just substituting C2 by C may move a remaining text in the | |
389 | line to the right or to the left, which is not preferable. | |
390 | So we insert more spaces or delete more characters in the | |
391 | following cases: if C is narrower than C2, after deleting C2, | |
392 | we fill columns with spaces, if C is wider than C2, we delete | |
393 | C2 and several characters following C2. */ | |
394 | ||
216b9443 RS |
395 | /* This is the character after point. */ |
396 | int c2 = FETCH_CHAR (PT_BYTE); | |
397 | ||
398 | /* Column the cursor should be placed at after this insertion. | |
9e4fd67b KH |
399 | The correct value should be calculated only when necessary. */ |
400 | int target_clm = 0; | |
401 | ||
37c0ed09 RS |
402 | /* Overwriting in binary-mode always replaces C2 by C. |
403 | Overwriting in textual-mode doesn't always do that. | |
404 | It inserts newlines in the usual way, | |
405 | and inserts any character at end of line | |
406 | or before a tab if it doesn't use the whole width of the tab. */ | |
9e4fd67b KH |
407 | if (EQ (overwrite, Qoverwrite_mode_binary) |
408 | || (c != '\n' | |
409 | && c2 != '\n' | |
37c0ed09 RS |
410 | && ! (c2 == '\t' |
411 | && XINT (current_buffer->tab_width) > 0 | |
412 | && XFASTINT (current_buffer->tab_width) < 20 | |
a731cae2 | 413 | && (target_clm = ((int) current_column () /* iftc */ |
06d74a65 | 414 | + XINT (Fchar_width (make_number (c)))), |
37c0ed09 | 415 | target_clm % XFASTINT (current_buffer->tab_width))))) |
9e4fd67b | 416 | { |
e744155a | 417 | int pos = PT; |
049749e6 | 418 | int pos_byte = PT_BYTE; |
e744155a | 419 | |
9e4fd67b | 420 | if (target_clm == 0) |
049749e6 | 421 | chars_to_delete = 1; |
9e4fd67b KH |
422 | else |
423 | { | |
9e4fd67b KH |
424 | /* The actual cursor position after the trial of moving |
425 | to column TARGET_CLM. It is greater than TARGET_CLM | |
426 | if the TARGET_CLM is middle of multi-column | |
427 | character. In that case, the new point is set after | |
428 | that character. */ | |
cac55749 RS |
429 | int actual_clm |
430 | = XFASTINT (Fmove_to_column (make_number (target_clm), Qnil)); | |
9e4fd67b | 431 | |
049749e6 | 432 | chars_to_delete = PT - pos; |
e744155a | 433 | |
9e4fd67b KH |
434 | if (actual_clm > target_clm) |
435 | { | |
e744155a | 436 | /* We will delete too many columns. Let's fill columns |
9e4fd67b | 437 | by spaces so that the remaining text won't move. */ |
e744155a | 438 | spaces_to_insert = actual_clm - target_clm; |
9e4fd67b KH |
439 | } |
440 | } | |
049749e6 | 441 | SET_PT_BOTH (pos, pos_byte); |
9e4fd67b KH |
442 | hairy = 2; |
443 | } | |
aa52fef9 | 444 | hairy = 2; |
cd645247 | 445 | } |
9ad8bfb0 | 446 | |
9ad8bfb0 KH |
447 | synt = SYNTAX (c); |
448 | ||
265a9e55 | 449 | if (!NILP (current_buffer->abbrev_mode) |
9ad8bfb0 | 450 | && synt != Sword |
265a9e55 | 451 | && NILP (current_buffer->read_only) |
9ad8bfb0 KH |
452 | && PT > BEGV |
453 | && (!NILP (current_buffer->enable_multibyte_characters) | |
454 | ? SYNTAX (XFASTINT (Fprevious_char ())) == Sword | |
4c0354d7 | 455 | : (SYNTAX (UNIBYTE_TO_CHAR (XFASTINT (Fprevious_char ()))) |
9ad8bfb0 | 456 | == Sword))) |
cd645247 | 457 | { |
ee8caabb | 458 | int modiff = MODIFF; |
e57640c0 RS |
459 | Lisp_Object sym; |
460 | ||
53abaf54 | 461 | sym = call0 (Qexpand_abbrev); |
e57640c0 | 462 | |
c87dbfd0 | 463 | /* If we expanded an abbrev which has a hook, |
9317a902 | 464 | and the hook has a non-nil `no-self-insert' property, |
e57640c0 | 465 | return right away--don't really self-insert. */ |
fb6b6049 | 466 | if (SYMBOLP (sym) && ! NILP (sym) && ! NILP (XSYMBOL (sym)->function) |
9317a902 | 467 | && SYMBOLP (XSYMBOL (sym)->function)) |
e57640c0 RS |
468 | { |
469 | Lisp_Object prop; | |
9317a902 | 470 | prop = Fget (XSYMBOL (sym)->function, intern ("no-self-insert")); |
e57640c0 | 471 | if (! NILP (prop)) |
6787d111 | 472 | return 1; |
e57640c0 RS |
473 | } |
474 | ||
ee8caabb | 475 | if (MODIFF != modiff) |
aa52fef9 | 476 | hairy = 2; |
cd645247 | 477 | } |
e744155a | 478 | |
049749e6 | 479 | if (chars_to_delete) |
e744155a | 480 | { |
f34206b4 | 481 | string = make_string_from_bytes (str, 1, len); |
e744155a RS |
482 | if (spaces_to_insert) |
483 | { | |
484 | tem = Fmake_string (make_number (spaces_to_insert), | |
485 | make_number (' ')); | |
486 | string = concat2 (tem, string); | |
487 | } | |
488 | ||
5f65b1b4 | 489 | replace_range (PT, PT + chars_to_delete, string, 1, 1, 1); |
1bf95511 | 490 | Fforward_char (make_number (1 + spaces_to_insert)); |
e744155a RS |
491 | } |
492 | else | |
493 | insert_and_inherit (str, len); | |
494 | ||
01428933 KH |
495 | if ((CHAR_TABLE_P (Vauto_fill_chars) |
496 | ? !NILP (CHAR_TABLE_REF (Vauto_fill_chars, c)) | |
497 | : (c == ' ' || c == '\n')) | |
cd645247 | 498 | && !noautofill |
3de15b7a | 499 | && !NILP (current_buffer->auto_fill_function)) |
cd645247 | 500 | { |
76bb6dbb KH |
501 | Lisp_Object tem; |
502 | ||
9e4fd67b | 503 | if (c == '\n') |
049749e6 RS |
504 | /* After inserting a newline, move to previous line and fill |
505 | that. Must have the newline in place already so filling and | |
506 | justification, if any, know where the end is going to be. */ | |
507 | SET_PT_BOTH (PT - 1, PT_BYTE - 1); | |
76bb6dbb | 508 | tem = call0 (current_buffer->auto_fill_function); |
4d94dd9a RS |
509 | /* Test PT < ZV in case the auto-fill-function is strange. */ |
510 | if (c == '\n' && PT < ZV) | |
049749e6 | 511 | SET_PT_BOTH (PT + 1, PT_BYTE + 1); |
76bb6dbb KH |
512 | if (!NILP (tem)) |
513 | hairy = 2; | |
cd645247 | 514 | } |
189fad68 RS |
515 | |
516 | /* If previous command specified a face to use, use it. */ | |
517 | if (!NILP (Vself_insert_face) | |
346e0c2d | 518 | && EQ (current_kboard->Vlast_command, Vself_insert_face_command)) |
189fad68 | 519 | { |
049749e6 RS |
520 | Fput_text_property (make_number (PT - 1), make_number (PT), |
521 | Qface, Vself_insert_face, Qnil); | |
189fad68 RS |
522 | Vself_insert_face = Qnil; |
523 | } | |
e744155a | 524 | |
cd645247 | 525 | if ((synt == Sclose || synt == Smath) |
2718dfa4 RS |
526 | && !NILP (Vblink_paren_function) && INTERACTIVE |
527 | && !noautofill) | |
cd645247 JB |
528 | { |
529 | call0 (Vblink_paren_function); | |
aa52fef9 | 530 | hairy = 2; |
cd645247 JB |
531 | } |
532 | return hairy; | |
533 | } | |
534 | \f | |
535 | /* module initialization */ | |
536 | ||
dfcf069d | 537 | void |
971de7fb | 538 | syms_of_cmds (void) |
cd645247 | 539 | { |
d67b4f80 | 540 | Qkill_backward_chars = intern_c_string ("kill-backward-chars"); |
cd645247 JB |
541 | staticpro (&Qkill_backward_chars); |
542 | ||
d67b4f80 | 543 | Qkill_forward_chars = intern_c_string ("kill-forward-chars"); |
cd645247 JB |
544 | staticpro (&Qkill_forward_chars); |
545 | ||
d67b4f80 | 546 | Qoverwrite_mode_binary = intern_c_string ("overwrite-mode-binary"); |
6bbb0d4a | 547 | staticpro (&Qoverwrite_mode_binary); |
e686c647 | 548 | |
d67b4f80 | 549 | Qexpand_abbrev = intern_c_string ("expand-abbrev"); |
53abaf54 SM |
550 | staticpro (&Qexpand_abbrev); |
551 | ||
189fad68 | 552 | DEFVAR_LISP ("self-insert-face", &Vself_insert_face, |
335c5470 PJ |
553 | doc: /* If non-nil, set the face of the next self-inserting character to this. |
554 | See also `self-insert-face-command'. */); | |
189fad68 RS |
555 | Vself_insert_face = Qnil; |
556 | ||
557 | DEFVAR_LISP ("self-insert-face-command", &Vself_insert_face_command, | |
335c5470 PJ |
558 | doc: /* This is the command that set up `self-insert-face'. |
559 | If `last-command' does not equal this value, we ignore `self-insert-face'. */); | |
189fad68 RS |
560 | Vself_insert_face_command = Qnil; |
561 | ||
cd645247 | 562 | DEFVAR_LISP ("blink-paren-function", &Vblink_paren_function, |
335c5470 PJ |
563 | doc: /* Function called, if non-nil, whenever a close parenthesis is inserted. |
564 | More precisely, a char with closeparen syntax is self-inserted. */); | |
cd645247 JB |
565 | Vblink_paren_function = Qnil; |
566 | ||
9e4fd67b | 567 | defsubr (&Sforward_point); |
cd645247 JB |
568 | defsubr (&Sforward_char); |
569 | defsubr (&Sbackward_char); | |
570 | defsubr (&Sforward_line); | |
571 | defsubr (&Sbeginning_of_line); | |
572 | defsubr (&Send_of_line); | |
573 | ||
574 | defsubr (&Sdelete_char); | |
cd645247 | 575 | defsubr (&Sself_insert_command); |
cd645247 JB |
576 | } |
577 | ||
dfcf069d | 578 | void |
971de7fb | 579 | keys_of_cmds (void) |
cd645247 JB |
580 | { |
581 | int n; | |
582 | ||
1ac9108a | 583 | nonundocount = 0; |
cbf65115 | 584 | initial_define_key (global_map, Ctl ('I'), "self-insert-command"); |
cd645247 JB |
585 | for (n = 040; n < 0177; n++) |
586 | initial_define_key (global_map, n, "self-insert-command"); | |
cf9cdc11 RS |
587 | #ifdef MSDOS |
588 | for (n = 0200; n < 0240; n++) | |
589 | initial_define_key (global_map, n, "self-insert-command"); | |
590 | #endif | |
94748cb9 | 591 | for (n = 0240; n < 0400; n++) |
eb46da6a | 592 | initial_define_key (global_map, n, "self-insert-command"); |
cd645247 JB |
593 | |
594 | initial_define_key (global_map, Ctl ('A'), "beginning-of-line"); | |
595 | initial_define_key (global_map, Ctl ('B'), "backward-char"); | |
cd645247 JB |
596 | initial_define_key (global_map, Ctl ('E'), "end-of-line"); |
597 | initial_define_key (global_map, Ctl ('F'), "forward-char"); | |
cd645247 | 598 | } |
6b61353c KH |
599 | |
600 | /* arch-tag: 022ba3cd-67f9-4978-9c5d-7d2b18d8644e | |
601 | (do not change this comment) */ |