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cd645247 | 1 | /* Simple built-in editing commands. |
95df8112 | 2 | |
acaf905b | 3 | Copyright (C) 1985, 1993-1998, 2001-2012 Free Software Foundation, Inc. |
cd645247 JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
9ec0b715 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
cd645247 | 8 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
cd645247 JB |
11 | |
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
cd645247 JB |
19 | |
20 | ||
18160b98 | 21 | #include <config.h> |
d7306fe6 | 22 | #include <setjmp.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" |
2cc7b62f | 32 | #include "frame.h" |
cd645247 | 33 | |
955cbe7b | 34 | static Lisp_Object Qkill_forward_chars, Qkill_backward_chars; |
cd645247 | 35 | |
6bbb0d4a | 36 | /* A possible value for a buffer's overwrite-mode variable. */ |
955cbe7b | 37 | static Lisp_Object Qoverwrite_mode_binary; |
6bbb0d4a | 38 | |
ace1712c | 39 | static int internal_self_insert (int, EMACS_INT); |
cd645247 | 40 | \f |
9e4fd67b | 41 | DEFUN ("forward-point", Fforward_point, Sforward_point, 1, 1, 0, |
335c5470 | 42 | doc: /* Return buffer position N characters after (before if N negative) point. */) |
5842a27b | 43 | (Lisp_Object n) |
9e4fd67b | 44 | { |
b7826503 | 45 | CHECK_NUMBER (n); |
9e4fd67b | 46 | |
049749e6 | 47 | return make_number (PT + XINT (n)); |
9e4fd67b KH |
48 | } |
49 | ||
a7ca3326 | 50 | DEFUN ("forward-char", Fforward_char, Sforward_char, 0, 1, "^p", |
d20e1419 EZ |
51 | doc: /* Move point N characters forward (backward if N is negative). |
52 | On reaching end or beginning of buffer, stop and signal error. | |
53 | ||
54 | Depending on the bidirectional context, the movement may be to the | |
55 | right or to the left on the screen. This is in contrast with | |
5220357f | 56 | \\[right-char], which see. */) |
5842a27b | 57 | (Lisp_Object n) |
cd645247 | 58 | { |
72d5f589 EN |
59 | if (NILP (n)) |
60 | XSETFASTINT (n, 1); | |
cd645247 | 61 | else |
b7826503 | 62 | CHECK_NUMBER (n); |
cd645247 | 63 | |
72d5f589 | 64 | /* This used to just set point to point + XINT (n), and then check |
7b502dc3 JB |
65 | to see if it was within boundaries. But now that SET_PT can |
66 | potentially do a lot of stuff (calling entering and exiting | |
67 | hooks, etcetera), that's not a good approach. So we validate the | |
68 | proposed position, then set point. */ | |
69 | { | |
40283062 | 70 | EMACS_INT new_point = PT + XINT (n); |
7b502dc3 JB |
71 | |
72 | if (new_point < BEGV) | |
73 | { | |
74 | SET_PT (BEGV); | |
aaf769f1 | 75 | xsignal0 (Qbeginning_of_buffer); |
7b502dc3 JB |
76 | } |
77 | if (new_point > ZV) | |
78 | { | |
79 | SET_PT (ZV); | |
aaf769f1 | 80 | xsignal0 (Qend_of_buffer); |
7b502dc3 JB |
81 | } |
82 | ||
83 | SET_PT (new_point); | |
84 | } | |
85 | ||
cd645247 JB |
86 | return Qnil; |
87 | } | |
88 | ||
9ae750f0 | 89 | DEFUN ("backward-char", Fbackward_char, Sbackward_char, 0, 1, "^p", |
d20e1419 EZ |
90 | doc: /* Move point N characters backward (forward if N is negative). |
91 | On attempt to pass beginning or end of buffer, stop and signal error. | |
92 | ||
93 | Depending on the bidirectional context, the movement may be to the | |
94 | right or to the left on the screen. This is in contrast with | |
5220357f | 95 | \\[left-char], which see. */) |
5842a27b | 96 | (Lisp_Object n) |
cd645247 | 97 | { |
72d5f589 EN |
98 | if (NILP (n)) |
99 | XSETFASTINT (n, 1); | |
cd645247 | 100 | else |
b7826503 | 101 | CHECK_NUMBER (n); |
cd645247 | 102 | |
72d5f589 EN |
103 | XSETINT (n, - XINT (n)); |
104 | return Fforward_char (n); | |
cd645247 JB |
105 | } |
106 | ||
a7ca3326 | 107 | DEFUN ("forward-line", Fforward_line, Sforward_line, 0, 1, "^p", |
335c5470 | 108 | doc: /* Move N lines forward (backward if N is negative). |
cd21226d EZ |
109 | Precisely, if point is on line I, move to the start of line I + N |
110 | \("start of line" in the logical order). | |
335c5470 PJ |
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 | |
5220357f | 115 | successfully moved (for the return value). */) |
5842a27b | 116 | (Lisp_Object n) |
cd645247 | 117 | { |
40283062 LMI |
118 | EMACS_INT opoint = PT, opoint_byte = PT_BYTE; |
119 | EMACS_INT pos, pos_byte; | |
120 | EMACS_INT count, shortage; | |
cd645247 | 121 | |
265a9e55 | 122 | if (NILP (n)) |
cd645247 JB |
123 | count = 1; |
124 | else | |
125 | { | |
b7826503 | 126 | CHECK_NUMBER (n); |
cd645247 JB |
127 | count = XINT (n); |
128 | } | |
129 | ||
049749e6 RS |
130 | if (count <= 0) |
131 | shortage = scan_newline (PT, PT_BYTE, BEGV, BEGV_BYTE, count - 1, 1); | |
132 | else | |
133 | shortage = scan_newline (PT, PT_BYTE, ZV, ZV_BYTE, count, 1); | |
134 | ||
135 | /* Since scan_newline does TEMP_SET_PT_BOTH, | |
136 | and we want to set PT "for real", | |
137 | go back to the old point and then come back here. */ | |
138 | pos = PT; | |
139 | pos_byte = PT_BYTE; | |
140 | TEMP_SET_PT_BOTH (opoint, opoint_byte); | |
141 | SET_PT_BOTH (pos, pos_byte); | |
142 | ||
cd645247 | 143 | if (shortage > 0 |
049749e6 | 144 | && (count <= 0 |
502ddf23 | 145 | || (ZV > BEGV |
049749e6 RS |
146 | && PT != opoint |
147 | && (FETCH_BYTE (PT_BYTE - 1) != '\n')))) | |
cd645247 | 148 | shortage--; |
049749e6 RS |
149 | |
150 | return make_number (count <= 0 ? - shortage : shortage); | |
cd645247 JB |
151 | } |
152 | ||
9ae750f0 | 153 | DEFUN ("beginning-of-line", Fbeginning_of_line, Sbeginning_of_line, 0, 1, "^p", |
cd21226d | 154 | doc: /* Move point to beginning of current line (in the logical order). |
8abc9869 MB |
155 | With argument N not nil or 1, move forward N - 1 lines first. |
156 | If point reaches the beginning or end of buffer, it stops there. | |
157 | ||
13c42cc5 | 158 | This function constrains point to the current field unless this moves |
5220357f JB |
159 | point to a different line than the original, unconstrained result. |
160 | If N is nil or 1, and a front-sticky field starts at point, the point | |
13c42cc5 | 161 | does not move. To ignore field boundaries bind |
27806b20 KL |
162 | `inhibit-field-text-motion' to t, or use the `forward-line' function |
163 | instead. For instance, `(forward-line 0)' does the same thing as | |
164 | `(beginning-of-line)', except that it ignores field boundaries. */) | |
5842a27b | 165 | (Lisp_Object n) |
cd645247 | 166 | { |
265a9e55 | 167 | if (NILP (n)) |
48c7cef2 | 168 | XSETFASTINT (n, 1); |
cd645247 | 169 | else |
b7826503 | 170 | CHECK_NUMBER (n); |
cd645247 | 171 | |
0aee588d | 172 | SET_PT (XINT (Fline_beginning_position (n))); |
a731cae2 | 173 | |
cd645247 JB |
174 | return Qnil; |
175 | } | |
176 | ||
a7ca3326 | 177 | DEFUN ("end-of-line", Fend_of_line, Send_of_line, 0, 1, "^p", |
cd21226d | 178 | doc: /* Move point to end of current line (in the logical order). |
8abc9869 MB |
179 | With argument N not nil or 1, move forward N - 1 lines first. |
180 | If point reaches the beginning or end of buffer, it stops there. | |
6b61353c | 181 | To ignore intangibility, bind `inhibit-point-motion-hooks' to t. |
8abc9869 | 182 | |
13c42cc5 KL |
183 | This function constrains point to the current field unless this moves |
184 | point to a different line than the original, unconstrained result. If | |
185 | N is nil or 1, and a rear-sticky field ends at point, the point does | |
186 | not move. To ignore field boundaries bind `inhibit-field-text-motion' | |
187 | to t. */) | |
5842a27b | 188 | (Lisp_Object n) |
cd645247 | 189 | { |
40283062 | 190 | EMACS_INT newpos; |
fda3de70 | 191 | |
265a9e55 | 192 | if (NILP (n)) |
48c7cef2 | 193 | XSETFASTINT (n, 1); |
cd645247 | 194 | else |
b7826503 | 195 | CHECK_NUMBER (n); |
cd645247 | 196 | |
fda3de70 RS |
197 | while (1) |
198 | { | |
199 | newpos = XINT (Fline_end_position (n)); | |
200 | SET_PT (newpos); | |
201 | ||
202 | if (PT > newpos | |
203 | && FETCH_CHAR (PT - 1) == '\n') | |
204 | { | |
205 | /* If we skipped over a newline that follows | |
206 | an invisible intangible run, | |
207 | move back to the last tangible position | |
208 | within the line. */ | |
209 | ||
210 | SET_PT (PT - 1); | |
211 | break; | |
212 | } | |
213 | else if (PT > newpos && PT < ZV | |
214 | && FETCH_CHAR (PT) != '\n') | |
215 | /* If we skipped something intangible | |
216 | and now we're not really at eol, | |
217 | keep going. */ | |
218 | n = make_number (1); | |
219 | else | |
220 | break; | |
221 | } | |
cd645247 JB |
222 | |
223 | return Qnil; | |
224 | } | |
225 | ||
226 | DEFUN ("delete-char", Fdelete_char, Sdelete_char, 1, 2, "p\nP", | |
335c5470 PJ |
227 | doc: /* Delete the following N characters (previous if N is negative). |
228 | Optional second arg KILLFLAG non-nil means kill instead (save in kill ring). | |
229 | Interactively, N is the prefix arg, and KILLFLAG is set if | |
b9229673 CY |
230 | N was explicitly specified. |
231 | ||
b8a47412 | 232 | The command `delete-forward-char' is preferable for interactive use. */) |
5842a27b | 233 | (Lisp_Object n, Lisp_Object killflag) |
cd645247 | 234 | { |
40283062 | 235 | EMACS_INT pos; |
9e4fd67b | 236 | |
b7826503 | 237 | CHECK_NUMBER (n); |
cd645247 | 238 | |
049749e6 | 239 | pos = PT + XINT (n); |
265a9e55 | 240 | if (NILP (killflag)) |
cd645247 JB |
241 | { |
242 | if (XINT (n) < 0) | |
243 | { | |
9e4fd67b | 244 | if (pos < BEGV) |
aaf769f1 | 245 | xsignal0 (Qbeginning_of_buffer); |
cd645247 | 246 | else |
9e4fd67b | 247 | del_range (pos, PT); |
cd645247 JB |
248 | } |
249 | else | |
250 | { | |
9e4fd67b | 251 | if (pos > ZV) |
aaf769f1 | 252 | xsignal0 (Qend_of_buffer); |
cd645247 | 253 | else |
9e4fd67b | 254 | del_range (PT, pos); |
cd645247 JB |
255 | } |
256 | } | |
257 | else | |
258 | { | |
259 | call1 (Qkill_forward_chars, n); | |
260 | } | |
261 | return Qnil; | |
262 | } | |
263 | ||
855a0da7 | 264 | static int nonundocount; |
1ac9108a | 265 | |
867d5263 DL |
266 | /* Note that there's code in command_loop_1 which typically avoids |
267 | calling this. */ | |
cd645247 | 268 | DEFUN ("self-insert-command", Fself_insert_command, Sself_insert_command, 1, 1, "p", |
335c5470 | 269 | doc: /* Insert the character you type. |
1ac9108a SM |
270 | Whichever character you type to run this command is inserted. |
271 | Before insertion, `expand-abbrev' is executed if the inserted character does | |
272 | not have word syntax and the previous character in the buffer does. | |
273 | After insertion, the value of `auto-fill-function' is called if the | |
8b76d6f8 SM |
274 | `auto-fill-chars' table has a non-nil value for the inserted character. |
275 | At the end, it runs `post-self-insert-hook'. */) | |
5842a27b | 276 | (Lisp_Object n) |
cd645247 | 277 | { |
1ac9108a | 278 | int remove_boundary = 1; |
1a4236ea | 279 | CHECK_NATNUM (n); |
1ac9108a | 280 | |
1344aad4 | 281 | if (!EQ (Vthis_command, KVAR (current_kboard, Vlast_command))) |
1ac9108a SM |
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 | |
4b4deea2 TT |
296 | && CONSP (BVAR (current_buffer, undo_list)) |
297 | && NILP (XCAR (BVAR (current_buffer, undo_list)))) | |
1ac9108a | 298 | /* Remove the undo_boundary that was just pushed. */ |
4b4deea2 | 299 | BVAR (current_buffer, undo_list) = XCDR (BVAR (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, | |
40283062 | 306 | (int) XINT (last_command_event)); |
ace1712c | 307 | int val = internal_self_insert (character, XFASTINT (n)); |
8f4e9110 SM |
308 | if (val == 2) |
309 | nonundocount = 0; | |
310 | frame_make_pointer_invisible (); | |
867d5263 | 311 | } |
cd645247 JB |
312 | |
313 | return Qnil; | |
314 | } | |
315 | ||
8f4e9110 | 316 | /* Insert N times character C |
4c6e656f RS |
317 | |
318 | If this insertion is suitable for direct output (completely simple), | |
aa52fef9 RS |
319 | return 0. A value of 1 indicates this *might* not have been simple. |
320 | A value of 2 means this did things that call for an undo boundary. */ | |
4c6e656f | 321 | |
53abaf54 | 322 | static Lisp_Object Qexpand_abbrev; |
29208e82 | 323 | static Lisp_Object Qpost_self_insert_hook; |
53abaf54 | 324 | |
c8197983 | 325 | static int |
ace1712c | 326 | internal_self_insert (int c, EMACS_INT n) |
cd645247 | 327 | { |
cd645247 JB |
328 | int hairy = 0; |
329 | Lisp_Object tem; | |
330 | register enum syntaxcode synt; | |
8f4e9110 | 331 | Lisp_Object overwrite; |
9e4fd67b KH |
332 | /* Length of multi-byte form of C. */ |
333 | int len; | |
334 | /* Working buffer and pointer for multi-byte form of C. */ | |
e55d9cfd | 335 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
40283062 LMI |
336 | EMACS_INT chars_to_delete = 0; |
337 | EMACS_INT spaces_to_insert = 0; | |
cd645247 | 338 | |
4b4deea2 | 339 | overwrite = BVAR (current_buffer, overwrite_mode); |
ad44dffe | 340 | if (!NILP (Vbefore_change_functions) || !NILP (Vafter_change_functions)) |
cd645247 JB |
341 | hairy = 1; |
342 | ||
9e4fd67b | 343 | /* At first, get multi-byte form of C in STR. */ |
4b4deea2 | 344 | if (!NILP (BVAR (current_buffer, enable_multibyte_characters))) |
b9859007 | 345 | { |
e55d9cfd | 346 | len = CHAR_STRING (c, str); |
741263c2 KH |
347 | if (len == 1) |
348 | /* If C has modifier bits, this makes C an appropriate | |
349 | one-byte char. */ | |
350 | c = *str; | |
b9859007 | 351 | } |
9e4fd67b | 352 | else |
38b62842 | 353 | { |
e55d9cfd KH |
354 | str[0] = (SINGLE_BYTE_CHAR_P (c) |
355 | ? c | |
461c2ab9 | 356 | : multibyte_char_to_unibyte (c)); |
38b62842 KH |
357 | len = 1; |
358 | } | |
6bbb0d4a | 359 | if (!NILP (overwrite) |
9e4fd67b | 360 | && PT < ZV) |
cd645247 | 361 | { |
9e4fd67b KH |
362 | /* In overwrite-mode, we substitute a character at point (C2, |
363 | hereafter) by C. For that, we delete C2 in advance. But, | |
364 | just substituting C2 by C may move a remaining text in the | |
365 | line to the right or to the left, which is not preferable. | |
366 | So we insert more spaces or delete more characters in the | |
367 | following cases: if C is narrower than C2, after deleting C2, | |
368 | we fill columns with spaces, if C is wider than C2, we delete | |
369 | C2 and several characters following C2. */ | |
370 | ||
216b9443 RS |
371 | /* This is the character after point. */ |
372 | int c2 = FETCH_CHAR (PT_BYTE); | |
373 | ||
37c0ed09 RS |
374 | /* Overwriting in binary-mode always replaces C2 by C. |
375 | Overwriting in textual-mode doesn't always do that. | |
376 | It inserts newlines in the usual way, | |
377 | and inserts any character at end of line | |
378 | or before a tab if it doesn't use the whole width of the tab. */ | |
8f4e9110 SM |
379 | if (EQ (overwrite, Qoverwrite_mode_binary)) |
380 | chars_to_delete = n; | |
381 | else if (c != '\n' && c2 != '\n') | |
9e4fd67b | 382 | { |
40283062 LMI |
383 | EMACS_INT pos = PT; |
384 | EMACS_INT pos_byte = PT_BYTE; | |
7831777b PE |
385 | |
386 | /* FIXME: Check for integer overflow when calculating | |
387 | target_clm and actual_clm. */ | |
388 | ||
8f4e9110 SM |
389 | /* Column the cursor should be placed at after this insertion. |
390 | The correct value should be calculated only when necessary. */ | |
7831777b PE |
391 | EMACS_INT target_clm = (current_column () |
392 | + n * XINT (Fchar_width (make_number (c)))); | |
e744155a | 393 | |
1e12733b PE |
394 | /* The actual cursor position after the trial of moving |
395 | to column TARGET_CLM. It is greater than TARGET_CLM | |
396 | if the TARGET_CLM is middle of multi-column | |
397 | character. In that case, the new point is set after | |
398 | that character. */ | |
7831777b PE |
399 | EMACS_INT actual_clm |
400 | = XFASTINT (Fmove_to_column (make_number (target_clm), Qnil)); | |
1e12733b PE |
401 | |
402 | chars_to_delete = PT - pos; | |
403 | ||
404 | if (actual_clm > target_clm) | |
405 | { | |
406 | /* We will delete too many columns. Let's fill columns | |
407 | by spaces so that the remaining text won't move. */ | |
8f4e9110 SM |
408 | EMACS_INT actual = PT_BYTE; |
409 | DEC_POS (actual); | |
410 | if (FETCH_CHAR (actual) == '\t') | |
411 | /* Rather than add spaces, let's just keep the tab. */ | |
412 | chars_to_delete--; | |
413 | else | |
1e12733b PE |
414 | spaces_to_insert = actual_clm - target_clm; |
415 | } | |
8f4e9110 | 416 | |
049749e6 | 417 | SET_PT_BOTH (pos, pos_byte); |
9e4fd67b | 418 | } |
aa52fef9 | 419 | hairy = 2; |
cd645247 | 420 | } |
9ad8bfb0 | 421 | |
9ad8bfb0 KH |
422 | synt = SYNTAX (c); |
423 | ||
4b4deea2 | 424 | if (!NILP (BVAR (current_buffer, abbrev_mode)) |
9ad8bfb0 | 425 | && synt != Sword |
4b4deea2 | 426 | && NILP (BVAR (current_buffer, read_only)) |
9ad8bfb0 | 427 | && PT > BEGV |
4b4deea2 | 428 | && (SYNTAX (!NILP (BVAR (current_buffer, enable_multibyte_characters)) |
a2e5caf7 SM |
429 | ? XFASTINT (Fprevious_char ()) |
430 | : UNIBYTE_TO_CHAR (XFASTINT (Fprevious_char ()))) | |
431 | == Sword)) | |
cd645247 | 432 | { |
ee8caabb | 433 | int modiff = MODIFF; |
e57640c0 RS |
434 | Lisp_Object sym; |
435 | ||
53abaf54 | 436 | sym = call0 (Qexpand_abbrev); |
e57640c0 | 437 | |
c87dbfd0 | 438 | /* If we expanded an abbrev which has a hook, |
9317a902 | 439 | and the hook has a non-nil `no-self-insert' property, |
e57640c0 | 440 | return right away--don't really self-insert. */ |
fb6b6049 | 441 | if (SYMBOLP (sym) && ! NILP (sym) && ! NILP (XSYMBOL (sym)->function) |
9317a902 | 442 | && SYMBOLP (XSYMBOL (sym)->function)) |
e57640c0 RS |
443 | { |
444 | Lisp_Object prop; | |
9317a902 | 445 | prop = Fget (XSYMBOL (sym)->function, intern ("no-self-insert")); |
e57640c0 | 446 | if (! NILP (prop)) |
6787d111 | 447 | return 1; |
e57640c0 RS |
448 | } |
449 | ||
ee8caabb | 450 | if (MODIFF != modiff) |
aa52fef9 | 451 | hairy = 2; |
cd645247 | 452 | } |
e744155a | 453 | |
049749e6 | 454 | if (chars_to_delete) |
e744155a | 455 | { |
4b4deea2 | 456 | int mc = ((NILP (BVAR (current_buffer, enable_multibyte_characters)) |
8f4e9110 SM |
457 | && SINGLE_BYTE_CHAR_P (c)) |
458 | ? UNIBYTE_TO_CHAR (c) : c); | |
459 | Lisp_Object string = Fmake_string (make_number (n), make_number (mc)); | |
2e35f1a2 | 460 | |
e744155a RS |
461 | if (spaces_to_insert) |
462 | { | |
463 | tem = Fmake_string (make_number (spaces_to_insert), | |
464 | make_number (' ')); | |
8f4e9110 | 465 | string = concat2 (string, tem); |
e744155a RS |
466 | } |
467 | ||
5f65b1b4 | 468 | replace_range (PT, PT + chars_to_delete, string, 1, 1, 1); |
8f4e9110 SM |
469 | Fforward_char (make_number (n + spaces_to_insert)); |
470 | } | |
471 | else if (n > 1) | |
472 | { | |
473 | USE_SAFE_ALLOCA; | |
b68864e5 | 474 | char *strn, *p; |
0065d054 | 475 | SAFE_NALLOCA (strn, len, n); |
8f4e9110 SM |
476 | for (p = strn; n > 0; n--, p += len) |
477 | memcpy (p, str, len); | |
478 | insert_and_inherit (strn, p - strn); | |
479 | SAFE_FREE (); | |
e744155a | 480 | } |
84b28888 | 481 | else if (n > 0) |
b68864e5 | 482 | insert_and_inherit ((char *) str, len); |
e744155a | 483 | |
01428933 KH |
484 | if ((CHAR_TABLE_P (Vauto_fill_chars) |
485 | ? !NILP (CHAR_TABLE_REF (Vauto_fill_chars, c)) | |
486 | : (c == ' ' || c == '\n')) | |
4b4deea2 | 487 | && !NILP (BVAR (current_buffer, auto_fill_function))) |
cd645247 | 488 | { |
930d429c | 489 | Lisp_Object auto_fill_result; |
76bb6dbb | 490 | |
9e4fd67b | 491 | if (c == '\n') |
049749e6 RS |
492 | /* After inserting a newline, move to previous line and fill |
493 | that. Must have the newline in place already so filling and | |
494 | justification, if any, know where the end is going to be. */ | |
495 | SET_PT_BOTH (PT - 1, PT_BYTE - 1); | |
930d429c | 496 | auto_fill_result = call0 (BVAR (current_buffer, auto_fill_function)); |
4d94dd9a RS |
497 | /* Test PT < ZV in case the auto-fill-function is strange. */ |
498 | if (c == '\n' && PT < ZV) | |
049749e6 | 499 | SET_PT_BOTH (PT + 1, PT_BYTE + 1); |
930d429c | 500 | if (!NILP (auto_fill_result)) |
76bb6dbb | 501 | hairy = 2; |
cd645247 | 502 | } |
189fad68 | 503 | |
a2e5caf7 | 504 | /* Run hooks for electric keys. */ |
dee091a3 | 505 | Frun_hooks (1, &Qpost_self_insert_hook); |
a2e5caf7 | 506 | |
cd645247 JB |
507 | return hairy; |
508 | } | |
509 | \f | |
510 | /* module initialization */ | |
511 | ||
dfcf069d | 512 | void |
971de7fb | 513 | syms_of_cmds (void) |
cd645247 | 514 | { |
cd3520a4 JB |
515 | DEFSYM (Qkill_backward_chars, "kill-backward-chars"); |
516 | DEFSYM (Qkill_forward_chars, "kill-forward-chars"); | |
517 | DEFSYM (Qoverwrite_mode_binary, "overwrite-mode-binary"); | |
518 | DEFSYM (Qexpand_abbrev, "expand-abbrev"); | |
519 | DEFSYM (Qpost_self_insert_hook, "post-self-insert-hook"); | |
189fad68 | 520 | |
29208e82 | 521 | DEFVAR_LISP ("post-self-insert-hook", Vpost_self_insert_hook, |
a2e5caf7 | 522 | doc: /* Hook run at the end of `self-insert-command'. |
2b5491fa | 523 | This is run after inserting the character. */); |
a2e5caf7 | 524 | Vpost_self_insert_hook = Qnil; |
189fad68 | 525 | |
9e4fd67b | 526 | defsubr (&Sforward_point); |
cd645247 JB |
527 | defsubr (&Sforward_char); |
528 | defsubr (&Sbackward_char); | |
529 | defsubr (&Sforward_line); | |
530 | defsubr (&Sbeginning_of_line); | |
531 | defsubr (&Send_of_line); | |
532 | ||
533 | defsubr (&Sdelete_char); | |
cd645247 | 534 | defsubr (&Sself_insert_command); |
cd645247 JB |
535 | } |
536 | ||
dfcf069d | 537 | void |
971de7fb | 538 | keys_of_cmds (void) |
cd645247 JB |
539 | { |
540 | int n; | |
541 | ||
1ac9108a | 542 | nonundocount = 0; |
cbf65115 | 543 | initial_define_key (global_map, Ctl ('I'), "self-insert-command"); |
cd645247 JB |
544 | for (n = 040; n < 0177; n++) |
545 | initial_define_key (global_map, n, "self-insert-command"); | |
cf9cdc11 RS |
546 | #ifdef MSDOS |
547 | for (n = 0200; n < 0240; n++) | |
548 | initial_define_key (global_map, n, "self-insert-command"); | |
549 | #endif | |
94748cb9 | 550 | for (n = 0240; n < 0400; n++) |
eb46da6a | 551 | initial_define_key (global_map, n, "self-insert-command"); |
cd645247 JB |
552 | |
553 | initial_define_key (global_map, Ctl ('A'), "beginning-of-line"); | |
554 | initial_define_key (global_map, Ctl ('B'), "backward-char"); | |
cd645247 JB |
555 | initial_define_key (global_map, Ctl ('E'), "end-of-line"); |
556 | initial_define_key (global_map, Ctl ('F'), "forward-char"); | |
cd645247 | 557 | } |