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cd645247 | 1 | /* Simple built-in editing commands. |
95df8112 GM |
2 | |
3 | Copyright (C) 1985, 1993-1998, 2001-2011 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 | |
274 | `auto-fill-chars' table has a non-nil value for the inserted character. */) | |
5842a27b | 275 | (Lisp_Object n) |
cd645247 | 276 | { |
1ac9108a | 277 | int remove_boundary = 1; |
1a4236ea | 278 | CHECK_NATNUM (n); |
1ac9108a | 279 | |
1344aad4 | 280 | if (!EQ (Vthis_command, KVAR (current_kboard, Vlast_command))) |
1ac9108a SM |
281 | nonundocount = 0; |
282 | ||
283 | if (NILP (Vexecuting_kbd_macro) | |
284 | && !EQ (minibuf_window, selected_window)) | |
285 | { | |
286 | if (nonundocount <= 0 || nonundocount >= 20) | |
287 | { | |
288 | remove_boundary = 0; | |
289 | nonundocount = 0; | |
290 | } | |
291 | nonundocount++; | |
292 | } | |
293 | ||
294 | if (remove_boundary | |
4b4deea2 TT |
295 | && CONSP (BVAR (current_buffer, undo_list)) |
296 | && NILP (XCAR (BVAR (current_buffer, undo_list)))) | |
1ac9108a | 297 | /* Remove the undo_boundary that was just pushed. */ |
4b4deea2 | 298 | BVAR (current_buffer, undo_list) = XCDR (BVAR (current_buffer, undo_list)); |
cd645247 JB |
299 | |
300 | /* Barf if the key that invoked this was not a character. */ | |
a31e445e | 301 | if (!CHARACTERP (last_command_event)) |
cd645247 | 302 | bitch_at_user (); |
867d5263 DL |
303 | { |
304 | int character = translate_char (Vtranslation_table_for_input, | |
40283062 | 305 | (int) XINT (last_command_event)); |
ace1712c | 306 | int val = internal_self_insert (character, XFASTINT (n)); |
8f4e9110 SM |
307 | if (val == 2) |
308 | nonundocount = 0; | |
309 | frame_make_pointer_invisible (); | |
867d5263 | 310 | } |
cd645247 JB |
311 | |
312 | return Qnil; | |
313 | } | |
314 | ||
8f4e9110 | 315 | /* Insert N times character C |
4c6e656f RS |
316 | |
317 | If this insertion is suitable for direct output (completely simple), | |
aa52fef9 RS |
318 | return 0. A value of 1 indicates this *might* not have been simple. |
319 | A value of 2 means this did things that call for an undo boundary. */ | |
4c6e656f | 320 | |
53abaf54 | 321 | static Lisp_Object Qexpand_abbrev; |
29208e82 | 322 | static Lisp_Object Qpost_self_insert_hook; |
53abaf54 | 323 | |
c8197983 | 324 | static int |
ace1712c | 325 | internal_self_insert (int c, EMACS_INT n) |
cd645247 | 326 | { |
cd645247 JB |
327 | int hairy = 0; |
328 | Lisp_Object tem; | |
329 | register enum syntaxcode synt; | |
8f4e9110 | 330 | Lisp_Object overwrite; |
9e4fd67b KH |
331 | /* Length of multi-byte form of C. */ |
332 | int len; | |
333 | /* Working buffer and pointer for multi-byte form of C. */ | |
e55d9cfd | 334 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
40283062 LMI |
335 | EMACS_INT chars_to_delete = 0; |
336 | EMACS_INT spaces_to_insert = 0; | |
cd645247 | 337 | |
4b4deea2 | 338 | overwrite = BVAR (current_buffer, overwrite_mode); |
ad44dffe | 339 | if (!NILP (Vbefore_change_functions) || !NILP (Vafter_change_functions)) |
cd645247 JB |
340 | hairy = 1; |
341 | ||
9e4fd67b | 342 | /* At first, get multi-byte form of C in STR. */ |
4b4deea2 | 343 | if (!NILP (BVAR (current_buffer, enable_multibyte_characters))) |
b9859007 | 344 | { |
e55d9cfd | 345 | len = CHAR_STRING (c, str); |
741263c2 KH |
346 | if (len == 1) |
347 | /* If C has modifier bits, this makes C an appropriate | |
348 | one-byte char. */ | |
349 | c = *str; | |
b9859007 | 350 | } |
9e4fd67b | 351 | else |
38b62842 | 352 | { |
e55d9cfd KH |
353 | str[0] = (SINGLE_BYTE_CHAR_P (c) |
354 | ? c | |
461c2ab9 | 355 | : multibyte_char_to_unibyte (c)); |
38b62842 KH |
356 | len = 1; |
357 | } | |
6bbb0d4a | 358 | if (!NILP (overwrite) |
9e4fd67b | 359 | && PT < ZV) |
cd645247 | 360 | { |
9e4fd67b KH |
361 | /* In overwrite-mode, we substitute a character at point (C2, |
362 | hereafter) by C. For that, we delete C2 in advance. But, | |
363 | just substituting C2 by C may move a remaining text in the | |
364 | line to the right or to the left, which is not preferable. | |
365 | So we insert more spaces or delete more characters in the | |
366 | following cases: if C is narrower than C2, after deleting C2, | |
367 | we fill columns with spaces, if C is wider than C2, we delete | |
368 | C2 and several characters following C2. */ | |
369 | ||
216b9443 RS |
370 | /* This is the character after point. */ |
371 | int c2 = FETCH_CHAR (PT_BYTE); | |
372 | ||
37c0ed09 RS |
373 | /* Overwriting in binary-mode always replaces C2 by C. |
374 | Overwriting in textual-mode doesn't always do that. | |
375 | It inserts newlines in the usual way, | |
376 | and inserts any character at end of line | |
377 | or before a tab if it doesn't use the whole width of the tab. */ | |
8f4e9110 SM |
378 | if (EQ (overwrite, Qoverwrite_mode_binary)) |
379 | chars_to_delete = n; | |
380 | else if (c != '\n' && c2 != '\n') | |
9e4fd67b | 381 | { |
40283062 LMI |
382 | EMACS_INT pos = PT; |
383 | EMACS_INT pos_byte = PT_BYTE; | |
7831777b PE |
384 | |
385 | /* FIXME: Check for integer overflow when calculating | |
386 | target_clm and actual_clm. */ | |
387 | ||
8f4e9110 SM |
388 | /* Column the cursor should be placed at after this insertion. |
389 | The correct value should be calculated only when necessary. */ | |
7831777b PE |
390 | EMACS_INT target_clm = (current_column () |
391 | + n * XINT (Fchar_width (make_number (c)))); | |
e744155a | 392 | |
1e12733b PE |
393 | /* The actual cursor position after the trial of moving |
394 | to column TARGET_CLM. It is greater than TARGET_CLM | |
395 | if the TARGET_CLM is middle of multi-column | |
396 | character. In that case, the new point is set after | |
397 | that character. */ | |
7831777b PE |
398 | EMACS_INT actual_clm |
399 | = XFASTINT (Fmove_to_column (make_number (target_clm), Qnil)); | |
1e12733b PE |
400 | |
401 | chars_to_delete = PT - pos; | |
402 | ||
403 | if (actual_clm > target_clm) | |
404 | { | |
405 | /* We will delete too many columns. Let's fill columns | |
406 | by spaces so that the remaining text won't move. */ | |
8f4e9110 SM |
407 | EMACS_INT actual = PT_BYTE; |
408 | DEC_POS (actual); | |
409 | if (FETCH_CHAR (actual) == '\t') | |
410 | /* Rather than add spaces, let's just keep the tab. */ | |
411 | chars_to_delete--; | |
412 | else | |
1e12733b PE |
413 | spaces_to_insert = actual_clm - target_clm; |
414 | } | |
8f4e9110 | 415 | |
049749e6 | 416 | SET_PT_BOTH (pos, pos_byte); |
9e4fd67b | 417 | } |
aa52fef9 | 418 | hairy = 2; |
cd645247 | 419 | } |
9ad8bfb0 | 420 | |
9ad8bfb0 KH |
421 | synt = SYNTAX (c); |
422 | ||
4b4deea2 | 423 | if (!NILP (BVAR (current_buffer, abbrev_mode)) |
9ad8bfb0 | 424 | && synt != Sword |
4b4deea2 | 425 | && NILP (BVAR (current_buffer, read_only)) |
9ad8bfb0 | 426 | && PT > BEGV |
4b4deea2 | 427 | && (SYNTAX (!NILP (BVAR (current_buffer, enable_multibyte_characters)) |
a2e5caf7 SM |
428 | ? XFASTINT (Fprevious_char ()) |
429 | : UNIBYTE_TO_CHAR (XFASTINT (Fprevious_char ()))) | |
430 | == Sword)) | |
cd645247 | 431 | { |
ee8caabb | 432 | int modiff = MODIFF; |
e57640c0 RS |
433 | Lisp_Object sym; |
434 | ||
53abaf54 | 435 | sym = call0 (Qexpand_abbrev); |
e57640c0 | 436 | |
c87dbfd0 | 437 | /* If we expanded an abbrev which has a hook, |
9317a902 | 438 | and the hook has a non-nil `no-self-insert' property, |
e57640c0 | 439 | return right away--don't really self-insert. */ |
fb6b6049 | 440 | if (SYMBOLP (sym) && ! NILP (sym) && ! NILP (XSYMBOL (sym)->function) |
9317a902 | 441 | && SYMBOLP (XSYMBOL (sym)->function)) |
e57640c0 RS |
442 | { |
443 | Lisp_Object prop; | |
9317a902 | 444 | prop = Fget (XSYMBOL (sym)->function, intern ("no-self-insert")); |
e57640c0 | 445 | if (! NILP (prop)) |
6787d111 | 446 | return 1; |
e57640c0 RS |
447 | } |
448 | ||
ee8caabb | 449 | if (MODIFF != modiff) |
aa52fef9 | 450 | hairy = 2; |
cd645247 | 451 | } |
e744155a | 452 | |
049749e6 | 453 | if (chars_to_delete) |
e744155a | 454 | { |
4b4deea2 | 455 | int mc = ((NILP (BVAR (current_buffer, enable_multibyte_characters)) |
8f4e9110 SM |
456 | && SINGLE_BYTE_CHAR_P (c)) |
457 | ? UNIBYTE_TO_CHAR (c) : c); | |
458 | Lisp_Object string = Fmake_string (make_number (n), make_number (mc)); | |
2e35f1a2 | 459 | |
e744155a RS |
460 | if (spaces_to_insert) |
461 | { | |
462 | tem = Fmake_string (make_number (spaces_to_insert), | |
463 | make_number (' ')); | |
8f4e9110 | 464 | string = concat2 (string, tem); |
e744155a RS |
465 | } |
466 | ||
5f65b1b4 | 467 | replace_range (PT, PT + chars_to_delete, string, 1, 1, 1); |
8f4e9110 SM |
468 | Fforward_char (make_number (n + spaces_to_insert)); |
469 | } | |
470 | else if (n > 1) | |
471 | { | |
472 | USE_SAFE_ALLOCA; | |
b68864e5 PE |
473 | char *strn, *p; |
474 | SAFE_ALLOCA (strn, char *, n * len); | |
8f4e9110 SM |
475 | for (p = strn; n > 0; n--, p += len) |
476 | memcpy (p, str, len); | |
477 | insert_and_inherit (strn, p - strn); | |
478 | SAFE_FREE (); | |
e744155a | 479 | } |
84b28888 | 480 | else if (n > 0) |
b68864e5 | 481 | insert_and_inherit ((char *) str, len); |
e744155a | 482 | |
01428933 KH |
483 | if ((CHAR_TABLE_P (Vauto_fill_chars) |
484 | ? !NILP (CHAR_TABLE_REF (Vauto_fill_chars, c)) | |
485 | : (c == ' ' || c == '\n')) | |
4b4deea2 | 486 | && !NILP (BVAR (current_buffer, auto_fill_function))) |
cd645247 | 487 | { |
930d429c | 488 | Lisp_Object auto_fill_result; |
76bb6dbb | 489 | |
9e4fd67b | 490 | if (c == '\n') |
049749e6 RS |
491 | /* After inserting a newline, move to previous line and fill |
492 | that. Must have the newline in place already so filling and | |
493 | justification, if any, know where the end is going to be. */ | |
494 | SET_PT_BOTH (PT - 1, PT_BYTE - 1); | |
930d429c | 495 | auto_fill_result = call0 (BVAR (current_buffer, auto_fill_function)); |
4d94dd9a RS |
496 | /* Test PT < ZV in case the auto-fill-function is strange. */ |
497 | if (c == '\n' && PT < ZV) | |
049749e6 | 498 | SET_PT_BOTH (PT + 1, PT_BYTE + 1); |
930d429c | 499 | if (!NILP (auto_fill_result)) |
76bb6dbb | 500 | hairy = 2; |
cd645247 | 501 | } |
189fad68 | 502 | |
a2e5caf7 | 503 | /* Run hooks for electric keys. */ |
dee091a3 | 504 | Frun_hooks (1, &Qpost_self_insert_hook); |
a2e5caf7 | 505 | |
cd645247 JB |
506 | return hairy; |
507 | } | |
508 | \f | |
509 | /* module initialization */ | |
510 | ||
dfcf069d | 511 | void |
971de7fb | 512 | syms_of_cmds (void) |
cd645247 | 513 | { |
d67b4f80 | 514 | Qkill_backward_chars = intern_c_string ("kill-backward-chars"); |
cd645247 JB |
515 | staticpro (&Qkill_backward_chars); |
516 | ||
d67b4f80 | 517 | Qkill_forward_chars = intern_c_string ("kill-forward-chars"); |
cd645247 JB |
518 | staticpro (&Qkill_forward_chars); |
519 | ||
d67b4f80 | 520 | Qoverwrite_mode_binary = intern_c_string ("overwrite-mode-binary"); |
6bbb0d4a | 521 | staticpro (&Qoverwrite_mode_binary); |
e686c647 | 522 | |
d67b4f80 | 523 | Qexpand_abbrev = intern_c_string ("expand-abbrev"); |
53abaf54 SM |
524 | staticpro (&Qexpand_abbrev); |
525 | ||
a2e5caf7 SM |
526 | Qpost_self_insert_hook = intern_c_string ("post-self-insert-hook"); |
527 | staticpro (&Qpost_self_insert_hook); | |
189fad68 | 528 | |
29208e82 | 529 | DEFVAR_LISP ("post-self-insert-hook", Vpost_self_insert_hook, |
a2e5caf7 | 530 | doc: /* Hook run at the end of `self-insert-command'. |
2b5491fa | 531 | This is run after inserting the character. */); |
a2e5caf7 | 532 | Vpost_self_insert_hook = Qnil; |
189fad68 | 533 | |
9e4fd67b | 534 | defsubr (&Sforward_point); |
cd645247 JB |
535 | defsubr (&Sforward_char); |
536 | defsubr (&Sbackward_char); | |
537 | defsubr (&Sforward_line); | |
538 | defsubr (&Sbeginning_of_line); | |
539 | defsubr (&Send_of_line); | |
540 | ||
541 | defsubr (&Sdelete_char); | |
cd645247 | 542 | defsubr (&Sself_insert_command); |
cd645247 JB |
543 | } |
544 | ||
dfcf069d | 545 | void |
971de7fb | 546 | keys_of_cmds (void) |
cd645247 JB |
547 | { |
548 | int n; | |
549 | ||
1ac9108a | 550 | nonundocount = 0; |
cbf65115 | 551 | initial_define_key (global_map, Ctl ('I'), "self-insert-command"); |
cd645247 JB |
552 | for (n = 040; n < 0177; n++) |
553 | initial_define_key (global_map, n, "self-insert-command"); | |
cf9cdc11 RS |
554 | #ifdef MSDOS |
555 | for (n = 0200; n < 0240; n++) | |
556 | initial_define_key (global_map, n, "self-insert-command"); | |
557 | #endif | |
94748cb9 | 558 | for (n = 0240; n < 0400; n++) |
eb46da6a | 559 | initial_define_key (global_map, n, "self-insert-command"); |
cd645247 JB |
560 | |
561 | initial_define_key (global_map, Ctl ('A'), "beginning-of-line"); | |
562 | initial_define_key (global_map, Ctl ('B'), "backward-char"); | |
cd645247 JB |
563 | initial_define_key (global_map, Ctl ('E'), "end-of-line"); |
564 | initial_define_key (global_map, Ctl ('F'), "forward-char"); | |
cd645247 | 565 | } |