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 | ||
c8197983 | 40 | static int internal_self_insert (int, int); |
cd645247 | 41 | \f |
9e4fd67b | 42 | DEFUN ("forward-point", Fforward_point, Sforward_point, 1, 1, 0, |
335c5470 | 43 | doc: /* Return buffer position N characters after (before if N negative) point. */) |
5842a27b | 44 | (Lisp_Object n) |
9e4fd67b | 45 | { |
b7826503 | 46 | CHECK_NUMBER (n); |
9e4fd67b | 47 | |
049749e6 | 48 | return make_number (PT + XINT (n)); |
9e4fd67b KH |
49 | } |
50 | ||
9ae750f0 | 51 | DEFUN ("forward-char", Fforward_char, Sforward_char, 0, 1, "^p", |
d20e1419 EZ |
52 | doc: /* Move point N characters forward (backward if N is negative). |
53 | On reaching end or beginning of buffer, stop and signal error. | |
54 | ||
55 | Depending on the bidirectional context, the movement may be to the | |
56 | right or to the left on the screen. This is in contrast with | |
5220357f | 57 | \\[right-char], which see. */) |
5842a27b | 58 | (Lisp_Object n) |
cd645247 | 59 | { |
72d5f589 EN |
60 | if (NILP (n)) |
61 | XSETFASTINT (n, 1); | |
cd645247 | 62 | else |
b7826503 | 63 | CHECK_NUMBER (n); |
cd645247 | 64 | |
72d5f589 | 65 | /* This used to just set point to point + XINT (n), and then check |
7b502dc3 JB |
66 | to see if it was within boundaries. But now that SET_PT can |
67 | potentially do a lot of stuff (calling entering and exiting | |
68 | hooks, etcetera), that's not a good approach. So we validate the | |
69 | proposed position, then set point. */ | |
70 | { | |
049749e6 | 71 | int new_point = PT + XINT (n); |
7b502dc3 JB |
72 | |
73 | if (new_point < BEGV) | |
74 | { | |
75 | SET_PT (BEGV); | |
aaf769f1 | 76 | xsignal0 (Qbeginning_of_buffer); |
7b502dc3 JB |
77 | } |
78 | if (new_point > ZV) | |
79 | { | |
80 | SET_PT (ZV); | |
aaf769f1 | 81 | xsignal0 (Qend_of_buffer); |
7b502dc3 JB |
82 | } |
83 | ||
84 | SET_PT (new_point); | |
85 | } | |
86 | ||
cd645247 JB |
87 | return Qnil; |
88 | } | |
89 | ||
9ae750f0 | 90 | DEFUN ("backward-char", Fbackward_char, Sbackward_char, 0, 1, "^p", |
d20e1419 EZ |
91 | doc: /* Move point N characters backward (forward if N is negative). |
92 | On attempt to pass beginning or end of buffer, stop and signal error. | |
93 | ||
94 | Depending on the bidirectional context, the movement may be to the | |
95 | right or to the left on the screen. This is in contrast with | |
5220357f | 96 | \\[left-char], which see. */) |
5842a27b | 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 | 109 | doc: /* Move N lines forward (backward if N is negative). |
cd21226d EZ |
110 | Precisely, if point is on line I, move to the start of line I + N |
111 | \("start of line" in the logical order). | |
335c5470 PJ |
112 | If there isn't room, go as far as possible (no error). |
113 | Returns the count of lines left to move. If moving forward, | |
114 | that is N - number of lines moved; if backward, N + number moved. | |
115 | With positive N, a non-empty line at the end counts as one line | |
5220357f | 116 | successfully moved (for the return value). */) |
5842a27b | 117 | (Lisp_Object n) |
cd645247 | 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", |
cd21226d | 155 | doc: /* Move point to beginning of current line (in the logical order). |
8abc9869 MB |
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 | 159 | This function constrains point to the current field unless this moves |
5220357f JB |
160 | point to a different line than the original, unconstrained result. |
161 | If N is nil or 1, and a front-sticky field starts at point, the point | |
13c42cc5 | 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. */) | |
5842a27b | 166 | (Lisp_Object n) |
cd645247 | 167 | { |
265a9e55 | 168 | if (NILP (n)) |
48c7cef2 | 169 | XSETFASTINT (n, 1); |
cd645247 | 170 | else |
b7826503 | 171 | CHECK_NUMBER (n); |
cd645247 | 172 | |
0aee588d | 173 | SET_PT (XINT (Fline_beginning_position (n))); |
a731cae2 | 174 | |
cd645247 JB |
175 | return Qnil; |
176 | } | |
177 | ||
9ae750f0 | 178 | DEFUN ("end-of-line", Fend_of_line, Send_of_line, 0, 1, "^p", |
cd21226d | 179 | doc: /* Move point to end of current line (in the logical order). |
8abc9869 MB |
180 | With argument N not nil or 1, move forward N - 1 lines first. |
181 | If point reaches the beginning or end of buffer, it stops there. | |
6b61353c | 182 | To ignore intangibility, bind `inhibit-point-motion-hooks' to t. |
8abc9869 | 183 | |
13c42cc5 KL |
184 | This function constrains point to the current field unless this moves |
185 | point to a different line than the original, unconstrained result. If | |
186 | N is nil or 1, and a rear-sticky field ends at point, the point does | |
187 | not move. To ignore field boundaries bind `inhibit-field-text-motion' | |
188 | to t. */) | |
5842a27b | 189 | (Lisp_Object n) |
cd645247 | 190 | { |
fda3de70 RS |
191 | int newpos; |
192 | ||
265a9e55 | 193 | if (NILP (n)) |
48c7cef2 | 194 | XSETFASTINT (n, 1); |
cd645247 | 195 | else |
b7826503 | 196 | CHECK_NUMBER (n); |
cd645247 | 197 | |
fda3de70 RS |
198 | while (1) |
199 | { | |
200 | newpos = XINT (Fline_end_position (n)); | |
201 | SET_PT (newpos); | |
202 | ||
203 | if (PT > newpos | |
204 | && FETCH_CHAR (PT - 1) == '\n') | |
205 | { | |
206 | /* If we skipped over a newline that follows | |
207 | an invisible intangible run, | |
208 | move back to the last tangible position | |
209 | within the line. */ | |
210 | ||
211 | SET_PT (PT - 1); | |
212 | break; | |
213 | } | |
214 | else if (PT > newpos && PT < ZV | |
215 | && FETCH_CHAR (PT) != '\n') | |
216 | /* If we skipped something intangible | |
217 | and now we're not really at eol, | |
218 | keep going. */ | |
219 | n = make_number (1); | |
220 | else | |
221 | break; | |
222 | } | |
cd645247 JB |
223 | |
224 | return Qnil; | |
225 | } | |
226 | ||
227 | DEFUN ("delete-char", Fdelete_char, Sdelete_char, 1, 2, "p\nP", | |
335c5470 PJ |
228 | doc: /* Delete the following N characters (previous if N is negative). |
229 | Optional second arg KILLFLAG non-nil means kill instead (save in kill ring). | |
230 | Interactively, N is the prefix arg, and KILLFLAG is set if | |
b9229673 CY |
231 | N was explicitly specified. |
232 | ||
233 | The command `delete-forward' is preferable for interactive use. */) | |
5842a27b | 234 | (Lisp_Object n, Lisp_Object killflag) |
cd645247 | 235 | { |
9e4fd67b KH |
236 | int pos; |
237 | ||
b7826503 | 238 | CHECK_NUMBER (n); |
cd645247 | 239 | |
049749e6 | 240 | pos = PT + XINT (n); |
265a9e55 | 241 | if (NILP (killflag)) |
cd645247 JB |
242 | { |
243 | if (XINT (n) < 0) | |
244 | { | |
9e4fd67b | 245 | if (pos < BEGV) |
aaf769f1 | 246 | xsignal0 (Qbeginning_of_buffer); |
cd645247 | 247 | else |
9e4fd67b | 248 | del_range (pos, PT); |
cd645247 JB |
249 | } |
250 | else | |
251 | { | |
9e4fd67b | 252 | if (pos > ZV) |
aaf769f1 | 253 | xsignal0 (Qend_of_buffer); |
cd645247 | 254 | else |
9e4fd67b | 255 | del_range (PT, pos); |
cd645247 JB |
256 | } |
257 | } | |
258 | else | |
259 | { | |
260 | call1 (Qkill_forward_chars, n); | |
261 | } | |
262 | return Qnil; | |
263 | } | |
264 | ||
855a0da7 | 265 | static int nonundocount; |
1ac9108a | 266 | |
867d5263 DL |
267 | /* Note that there's code in command_loop_1 which typically avoids |
268 | calling this. */ | |
cd645247 | 269 | DEFUN ("self-insert-command", Fself_insert_command, Sself_insert_command, 1, 1, "p", |
335c5470 | 270 | doc: /* Insert the character you type. |
1ac9108a SM |
271 | Whichever character you type to run this command is inserted. |
272 | Before insertion, `expand-abbrev' is executed if the inserted character does | |
273 | not have word syntax and the previous character in the buffer does. | |
274 | After insertion, the value of `auto-fill-function' is called if the | |
275 | `auto-fill-chars' table has a non-nil value for the inserted character. */) | |
5842a27b | 276 | (Lisp_Object n) |
cd645247 | 277 | { |
1ac9108a | 278 | int remove_boundary = 1; |
b0ca0f33 | 279 | CHECK_NUMBER (n); |
1ac9108a SM |
280 | |
281 | if (!EQ (Vthis_command, current_kboard->Vlast_command)) | |
282 | nonundocount = 0; | |
283 | ||
284 | if (NILP (Vexecuting_kbd_macro) | |
285 | && !EQ (minibuf_window, selected_window)) | |
286 | { | |
287 | if (nonundocount <= 0 || nonundocount >= 20) | |
288 | { | |
289 | remove_boundary = 0; | |
290 | nonundocount = 0; | |
291 | } | |
292 | nonundocount++; | |
293 | } | |
294 | ||
295 | if (remove_boundary | |
296 | && CONSP (current_buffer->undo_list) | |
297 | && NILP (XCAR (current_buffer->undo_list))) | |
298 | /* Remove the undo_boundary that was just pushed. */ | |
299 | current_buffer->undo_list = XCDR (current_buffer->undo_list); | |
cd645247 JB |
300 | |
301 | /* Barf if the key that invoked this was not a character. */ | |
a31e445e | 302 | if (!CHARACTERP (last_command_event)) |
cd645247 | 303 | bitch_at_user (); |
867d5263 DL |
304 | { |
305 | int character = translate_char (Vtranslation_table_for_input, | |
a31e445e | 306 | XINT (last_command_event)); |
867d5263 | 307 | if (XINT (n) >= 2 && NILP (current_buffer->overwrite_mode)) |
cd645247 | 308 | { |
867d5263 DL |
309 | XSETFASTINT (n, XFASTINT (n) - 2); |
310 | /* The first one might want to expand an abbrev. */ | |
311 | internal_self_insert (character, 1); | |
312 | /* The bulk of the copies of this char can be inserted simply. | |
313 | We don't have to handle a user-specified face specially | |
314 | because it will get inherited from the first char inserted. */ | |
ef73e7be | 315 | Finsert_char (make_number (character), n, Qt); |
867d5263 DL |
316 | /* The last one might want to auto-fill. */ |
317 | internal_self_insert (character, 0); | |
cd645247 | 318 | } |
867d5263 DL |
319 | else |
320 | while (XINT (n) > 0) | |
321 | { | |
1ac9108a | 322 | int val; |
867d5263 DL |
323 | /* Ok since old and new vals both nonneg */ |
324 | XSETFASTINT (n, XFASTINT (n) - 1); | |
1ac9108a SM |
325 | val = internal_self_insert (character, XFASTINT (n) != 0); |
326 | if (val == 2) | |
327 | nonundocount = 0; | |
328 | frame_make_pointer_invisible (); | |
867d5263 DL |
329 | } |
330 | } | |
cd645247 JB |
331 | |
332 | return Qnil; | |
333 | } | |
334 | ||
9e4fd67b | 335 | /* Insert character C. If NOAUTOFILL is nonzero, don't do autofill |
4c6e656f RS |
336 | even if it is enabled. |
337 | ||
338 | If this insertion is suitable for direct output (completely simple), | |
aa52fef9 RS |
339 | return 0. A value of 1 indicates this *might* not have been simple. |
340 | A value of 2 means this did things that call for an undo boundary. */ | |
4c6e656f | 341 | |
53abaf54 | 342 | static Lisp_Object Qexpand_abbrev; |
a2e5caf7 | 343 | static Lisp_Object Qpost_self_insert_hook, Vpost_self_insert_hook; |
53abaf54 | 344 | |
c8197983 | 345 | static int |
971de7fb | 346 | internal_self_insert (int c, int noautofill) |
cd645247 | 347 | { |
cd645247 JB |
348 | int hairy = 0; |
349 | Lisp_Object tem; | |
350 | register enum syntaxcode synt; | |
e744155a | 351 | Lisp_Object overwrite, string; |
9e4fd67b KH |
352 | /* Length of multi-byte form of C. */ |
353 | int len; | |
354 | /* Working buffer and pointer for multi-byte form of C. */ | |
e55d9cfd | 355 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
049749e6 | 356 | int chars_to_delete = 0; |
e744155a | 357 | int spaces_to_insert = 0; |
cd645247 | 358 | |
e7aacab7 | 359 | overwrite = current_buffer->overwrite_mode; |
ad44dffe | 360 | if (!NILP (Vbefore_change_functions) || !NILP (Vafter_change_functions)) |
cd645247 JB |
361 | hairy = 1; |
362 | ||
9e4fd67b KH |
363 | /* At first, get multi-byte form of C in STR. */ |
364 | if (!NILP (current_buffer->enable_multibyte_characters)) | |
b9859007 | 365 | { |
e55d9cfd | 366 | len = CHAR_STRING (c, str); |
741263c2 KH |
367 | if (len == 1) |
368 | /* If C has modifier bits, this makes C an appropriate | |
369 | one-byte char. */ | |
370 | c = *str; | |
b9859007 | 371 | } |
9e4fd67b | 372 | else |
38b62842 | 373 | { |
e55d9cfd KH |
374 | str[0] = (SINGLE_BYTE_CHAR_P (c) |
375 | ? c | |
376 | : multibyte_char_to_unibyte (c, Qnil)); | |
38b62842 KH |
377 | len = 1; |
378 | } | |
6bbb0d4a | 379 | if (!NILP (overwrite) |
9e4fd67b | 380 | && PT < ZV) |
cd645247 | 381 | { |
9e4fd67b KH |
382 | /* In overwrite-mode, we substitute a character at point (C2, |
383 | hereafter) by C. For that, we delete C2 in advance. But, | |
384 | just substituting C2 by C may move a remaining text in the | |
385 | line to the right or to the left, which is not preferable. | |
386 | So we insert more spaces or delete more characters in the | |
387 | following cases: if C is narrower than C2, after deleting C2, | |
388 | we fill columns with spaces, if C is wider than C2, we delete | |
389 | C2 and several characters following C2. */ | |
390 | ||
216b9443 RS |
391 | /* This is the character after point. */ |
392 | int c2 = FETCH_CHAR (PT_BYTE); | |
393 | ||
394 | /* Column the cursor should be placed at after this insertion. | |
9e4fd67b KH |
395 | The correct value should be calculated only when necessary. */ |
396 | int target_clm = 0; | |
397 | ||
37c0ed09 RS |
398 | /* Overwriting in binary-mode always replaces C2 by C. |
399 | Overwriting in textual-mode doesn't always do that. | |
400 | It inserts newlines in the usual way, | |
401 | and inserts any character at end of line | |
402 | or before a tab if it doesn't use the whole width of the tab. */ | |
9e4fd67b KH |
403 | if (EQ (overwrite, Qoverwrite_mode_binary) |
404 | || (c != '\n' | |
405 | && c2 != '\n' | |
37c0ed09 RS |
406 | && ! (c2 == '\t' |
407 | && XINT (current_buffer->tab_width) > 0 | |
408 | && XFASTINT (current_buffer->tab_width) < 20 | |
a731cae2 | 409 | && (target_clm = ((int) current_column () /* iftc */ |
06d74a65 | 410 | + XINT (Fchar_width (make_number (c)))), |
37c0ed09 | 411 | target_clm % XFASTINT (current_buffer->tab_width))))) |
9e4fd67b | 412 | { |
e744155a | 413 | int pos = PT; |
049749e6 | 414 | int pos_byte = PT_BYTE; |
e744155a | 415 | |
9e4fd67b | 416 | if (target_clm == 0) |
049749e6 | 417 | chars_to_delete = 1; |
9e4fd67b KH |
418 | else |
419 | { | |
9e4fd67b KH |
420 | /* The actual cursor position after the trial of moving |
421 | to column TARGET_CLM. It is greater than TARGET_CLM | |
422 | if the TARGET_CLM is middle of multi-column | |
423 | character. In that case, the new point is set after | |
424 | that character. */ | |
cac55749 RS |
425 | int actual_clm |
426 | = XFASTINT (Fmove_to_column (make_number (target_clm), Qnil)); | |
9e4fd67b | 427 | |
049749e6 | 428 | chars_to_delete = PT - pos; |
e744155a | 429 | |
9e4fd67b KH |
430 | if (actual_clm > target_clm) |
431 | { | |
e744155a | 432 | /* We will delete too many columns. Let's fill columns |
9e4fd67b | 433 | by spaces so that the remaining text won't move. */ |
e744155a | 434 | spaces_to_insert = actual_clm - target_clm; |
9e4fd67b KH |
435 | } |
436 | } | |
049749e6 | 437 | SET_PT_BOTH (pos, pos_byte); |
9e4fd67b KH |
438 | hairy = 2; |
439 | } | |
aa52fef9 | 440 | hairy = 2; |
cd645247 | 441 | } |
9ad8bfb0 | 442 | |
9ad8bfb0 KH |
443 | synt = SYNTAX (c); |
444 | ||
265a9e55 | 445 | if (!NILP (current_buffer->abbrev_mode) |
9ad8bfb0 | 446 | && synt != Sword |
265a9e55 | 447 | && NILP (current_buffer->read_only) |
9ad8bfb0 | 448 | && PT > BEGV |
a2e5caf7 SM |
449 | && (SYNTAX (!NILP (current_buffer->enable_multibyte_characters) |
450 | ? XFASTINT (Fprevious_char ()) | |
451 | : UNIBYTE_TO_CHAR (XFASTINT (Fprevious_char ()))) | |
452 | == Sword)) | |
cd645247 | 453 | { |
ee8caabb | 454 | int modiff = MODIFF; |
e57640c0 RS |
455 | Lisp_Object sym; |
456 | ||
53abaf54 | 457 | sym = call0 (Qexpand_abbrev); |
e57640c0 | 458 | |
c87dbfd0 | 459 | /* If we expanded an abbrev which has a hook, |
9317a902 | 460 | and the hook has a non-nil `no-self-insert' property, |
e57640c0 | 461 | return right away--don't really self-insert. */ |
fb6b6049 | 462 | if (SYMBOLP (sym) && ! NILP (sym) && ! NILP (XSYMBOL (sym)->function) |
9317a902 | 463 | && SYMBOLP (XSYMBOL (sym)->function)) |
e57640c0 RS |
464 | { |
465 | Lisp_Object prop; | |
9317a902 | 466 | prop = Fget (XSYMBOL (sym)->function, intern ("no-self-insert")); |
e57640c0 | 467 | if (! NILP (prop)) |
6787d111 | 468 | return 1; |
e57640c0 RS |
469 | } |
470 | ||
ee8caabb | 471 | if (MODIFF != modiff) |
aa52fef9 | 472 | hairy = 2; |
cd645247 | 473 | } |
e744155a | 474 | |
049749e6 | 475 | if (chars_to_delete) |
e744155a | 476 | { |
f34206b4 | 477 | string = make_string_from_bytes (str, 1, len); |
e744155a RS |
478 | if (spaces_to_insert) |
479 | { | |
480 | tem = Fmake_string (make_number (spaces_to_insert), | |
481 | make_number (' ')); | |
482 | string = concat2 (tem, string); | |
483 | } | |
484 | ||
5f65b1b4 | 485 | replace_range (PT, PT + chars_to_delete, string, 1, 1, 1); |
1bf95511 | 486 | Fforward_char (make_number (1 + spaces_to_insert)); |
e744155a RS |
487 | } |
488 | else | |
489 | insert_and_inherit (str, len); | |
490 | ||
01428933 KH |
491 | if ((CHAR_TABLE_P (Vauto_fill_chars) |
492 | ? !NILP (CHAR_TABLE_REF (Vauto_fill_chars, c)) | |
493 | : (c == ' ' || c == '\n')) | |
cd645247 | 494 | && !noautofill |
3de15b7a | 495 | && !NILP (current_buffer->auto_fill_function)) |
cd645247 | 496 | { |
76bb6dbb KH |
497 | Lisp_Object tem; |
498 | ||
9e4fd67b | 499 | if (c == '\n') |
049749e6 RS |
500 | /* After inserting a newline, move to previous line and fill |
501 | that. Must have the newline in place already so filling and | |
502 | justification, if any, know where the end is going to be. */ | |
503 | SET_PT_BOTH (PT - 1, PT_BYTE - 1); | |
76bb6dbb | 504 | tem = call0 (current_buffer->auto_fill_function); |
4d94dd9a RS |
505 | /* Test PT < ZV in case the auto-fill-function is strange. */ |
506 | if (c == '\n' && PT < ZV) | |
049749e6 | 507 | SET_PT_BOTH (PT + 1, PT_BYTE + 1); |
76bb6dbb KH |
508 | if (!NILP (tem)) |
509 | hairy = 2; | |
cd645247 | 510 | } |
189fad68 | 511 | |
cd645247 | 512 | if ((synt == Sclose || synt == Smath) |
2718dfa4 RS |
513 | && !NILP (Vblink_paren_function) && INTERACTIVE |
514 | && !noautofill) | |
cd645247 JB |
515 | { |
516 | call0 (Vblink_paren_function); | |
aa52fef9 | 517 | hairy = 2; |
cd645247 | 518 | } |
a2e5caf7 SM |
519 | /* Run hooks for electric keys. */ |
520 | call1 (Vrun_hooks, Qpost_self_insert_hook); | |
521 | ||
cd645247 JB |
522 | return hairy; |
523 | } | |
524 | \f | |
525 | /* module initialization */ | |
526 | ||
dfcf069d | 527 | void |
971de7fb | 528 | syms_of_cmds (void) |
cd645247 | 529 | { |
d67b4f80 | 530 | Qkill_backward_chars = intern_c_string ("kill-backward-chars"); |
cd645247 JB |
531 | staticpro (&Qkill_backward_chars); |
532 | ||
d67b4f80 | 533 | Qkill_forward_chars = intern_c_string ("kill-forward-chars"); |
cd645247 JB |
534 | staticpro (&Qkill_forward_chars); |
535 | ||
d67b4f80 | 536 | Qoverwrite_mode_binary = intern_c_string ("overwrite-mode-binary"); |
6bbb0d4a | 537 | staticpro (&Qoverwrite_mode_binary); |
e686c647 | 538 | |
d67b4f80 | 539 | Qexpand_abbrev = intern_c_string ("expand-abbrev"); |
53abaf54 SM |
540 | staticpro (&Qexpand_abbrev); |
541 | ||
a2e5caf7 SM |
542 | Qpost_self_insert_hook = intern_c_string ("post-self-insert-hook"); |
543 | staticpro (&Qpost_self_insert_hook); | |
189fad68 | 544 | |
a2e5caf7 SM |
545 | DEFVAR_LISP ("post-self-insert-hook", &Vpost_self_insert_hook, |
546 | doc: /* Hook run at the end of `self-insert-command'. | |
547 | This run is run after inserting the charater. */); | |
548 | Vpost_self_insert_hook = Qnil; | |
189fad68 | 549 | |
cd645247 | 550 | DEFVAR_LISP ("blink-paren-function", &Vblink_paren_function, |
335c5470 PJ |
551 | doc: /* Function called, if non-nil, whenever a close parenthesis is inserted. |
552 | More precisely, a char with closeparen syntax is self-inserted. */); | |
cd645247 JB |
553 | Vblink_paren_function = Qnil; |
554 | ||
9e4fd67b | 555 | defsubr (&Sforward_point); |
cd645247 JB |
556 | defsubr (&Sforward_char); |
557 | defsubr (&Sbackward_char); | |
558 | defsubr (&Sforward_line); | |
559 | defsubr (&Sbeginning_of_line); | |
560 | defsubr (&Send_of_line); | |
561 | ||
562 | defsubr (&Sdelete_char); | |
cd645247 | 563 | defsubr (&Sself_insert_command); |
cd645247 JB |
564 | } |
565 | ||
dfcf069d | 566 | void |
971de7fb | 567 | keys_of_cmds (void) |
cd645247 JB |
568 | { |
569 | int n; | |
570 | ||
1ac9108a | 571 | nonundocount = 0; |
cbf65115 | 572 | initial_define_key (global_map, Ctl ('I'), "self-insert-command"); |
cd645247 JB |
573 | for (n = 040; n < 0177; n++) |
574 | initial_define_key (global_map, n, "self-insert-command"); | |
cf9cdc11 RS |
575 | #ifdef MSDOS |
576 | for (n = 0200; n < 0240; n++) | |
577 | initial_define_key (global_map, n, "self-insert-command"); | |
578 | #endif | |
94748cb9 | 579 | for (n = 0240; n < 0400; n++) |
eb46da6a | 580 | initial_define_key (global_map, n, "self-insert-command"); |
cd645247 JB |
581 | |
582 | initial_define_key (global_map, Ctl ('A'), "beginning-of-line"); | |
583 | initial_define_key (global_map, Ctl ('B'), "backward-char"); | |
cd645247 JB |
584 | initial_define_key (global_map, Ctl ('E'), "end-of-line"); |
585 | initial_define_key (global_map, Ctl ('F'), "forward-char"); | |
cd645247 | 586 | } |
6b61353c KH |
587 | |
588 | /* arch-tag: 022ba3cd-67f9-4978-9c5d-7d2b18d8644e | |
589 | (do not change this comment) */ |