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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" | |
83be827a | 25 | #include "character.h" |
e5560ff7 | 26 | #include "buffer.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 | ||
d311d28c PE |
50 | /* Add N to point; or subtract N if FORWARD is zero. N defaults to 1. |
51 | Validate the new location. Return nil. */ | |
52 | static Lisp_Object | |
53 | move_point (Lisp_Object n, int forward) | |
54 | { | |
55 | /* This used to just set point to point + XINT (n), and then check | |
56 | to see if it was within boundaries. But now that SET_PT can | |
57 | potentially do a lot of stuff (calling entering and exiting | |
58 | hooks, etcetera), that's not a good approach. So we validate the | |
59 | proposed position, then set point. */ | |
60 | ||
61 | EMACS_INT new_point; | |
62 | ||
63 | if (NILP (n)) | |
64 | XSETFASTINT (n, 1); | |
65 | else | |
66 | CHECK_NUMBER (n); | |
67 | ||
68 | new_point = PT + (forward ? XINT (n) : - XINT (n)); | |
69 | ||
70 | if (new_point < BEGV) | |
71 | { | |
72 | SET_PT (BEGV); | |
73 | xsignal0 (Qbeginning_of_buffer); | |
74 | } | |
75 | if (new_point > ZV) | |
76 | { | |
77 | SET_PT (ZV); | |
78 | xsignal0 (Qend_of_buffer); | |
79 | } | |
80 | ||
81 | SET_PT (new_point); | |
82 | return Qnil; | |
83 | } | |
84 | ||
a7ca3326 | 85 | DEFUN ("forward-char", Fforward_char, Sforward_char, 0, 1, "^p", |
d20e1419 EZ |
86 | doc: /* Move point N characters forward (backward if N is negative). |
87 | On reaching end or beginning of buffer, stop and signal error. | |
88 | ||
89 | Depending on the bidirectional context, the movement may be to the | |
90 | right or to the left on the screen. This is in contrast with | |
5220357f | 91 | \\[right-char], which see. */) |
5842a27b | 92 | (Lisp_Object n) |
cd645247 | 93 | { |
d311d28c | 94 | return move_point (n, 1); |
cd645247 JB |
95 | } |
96 | ||
9ae750f0 | 97 | DEFUN ("backward-char", Fbackward_char, Sbackward_char, 0, 1, "^p", |
d20e1419 EZ |
98 | doc: /* Move point N characters backward (forward if N is negative). |
99 | On attempt to pass beginning or end of buffer, stop and signal error. | |
100 | ||
101 | Depending on the bidirectional context, the movement may be to the | |
102 | right or to the left on the screen. This is in contrast with | |
5220357f | 103 | \\[left-char], which see. */) |
5842a27b | 104 | (Lisp_Object n) |
cd645247 | 105 | { |
d311d28c | 106 | return move_point (n, 0); |
cd645247 JB |
107 | } |
108 | ||
a7ca3326 | 109 | DEFUN ("forward-line", Fforward_line, Sforward_line, 0, 1, "^p", |
335c5470 | 110 | doc: /* Move N lines forward (backward if N is negative). |
cd21226d EZ |
111 | Precisely, if point is on line I, move to the start of line I + N |
112 | \("start of line" in the logical order). | |
335c5470 PJ |
113 | If there isn't room, go as far as possible (no error). |
114 | Returns the count of lines left to move. If moving forward, | |
115 | that is N - number of lines moved; if backward, N + number moved. | |
116 | With positive N, a non-empty line at the end counts as one line | |
5220357f | 117 | successfully moved (for the return value). */) |
5842a27b | 118 | (Lisp_Object n) |
cd645247 | 119 | { |
d311d28c PE |
120 | ptrdiff_t opoint = PT, opoint_byte = PT_BYTE; |
121 | ptrdiff_t pos, pos_byte; | |
40283062 | 122 | EMACS_INT count, shortage; |
cd645247 | 123 | |
265a9e55 | 124 | if (NILP (n)) |
cd645247 JB |
125 | count = 1; |
126 | else | |
127 | { | |
b7826503 | 128 | CHECK_NUMBER (n); |
cd645247 JB |
129 | count = XINT (n); |
130 | } | |
131 | ||
049749e6 RS |
132 | if (count <= 0) |
133 | shortage = scan_newline (PT, PT_BYTE, BEGV, BEGV_BYTE, count - 1, 1); | |
134 | else | |
135 | shortage = scan_newline (PT, PT_BYTE, ZV, ZV_BYTE, count, 1); | |
136 | ||
137 | /* Since scan_newline does TEMP_SET_PT_BOTH, | |
138 | and we want to set PT "for real", | |
139 | go back to the old point and then come back here. */ | |
140 | pos = PT; | |
141 | pos_byte = PT_BYTE; | |
142 | TEMP_SET_PT_BOTH (opoint, opoint_byte); | |
143 | SET_PT_BOTH (pos, pos_byte); | |
144 | ||
cd645247 | 145 | if (shortage > 0 |
049749e6 | 146 | && (count <= 0 |
502ddf23 | 147 | || (ZV > BEGV |
049749e6 RS |
148 | && PT != opoint |
149 | && (FETCH_BYTE (PT_BYTE - 1) != '\n')))) | |
cd645247 | 150 | shortage--; |
049749e6 RS |
151 | |
152 | return make_number (count <= 0 ? - shortage : shortage); | |
cd645247 JB |
153 | } |
154 | ||
9ae750f0 | 155 | DEFUN ("beginning-of-line", Fbeginning_of_line, Sbeginning_of_line, 0, 1, "^p", |
cd21226d | 156 | doc: /* Move point to beginning of current line (in the logical order). |
8abc9869 MB |
157 | With argument N not nil or 1, move forward N - 1 lines first. |
158 | If point reaches the beginning or end of buffer, it stops there. | |
159 | ||
13c42cc5 | 160 | This function constrains point to the current field unless this moves |
5220357f JB |
161 | point to a different line than the original, unconstrained result. |
162 | If N is nil or 1, and a front-sticky field starts at point, the point | |
13c42cc5 | 163 | does not move. To ignore field boundaries bind |
27806b20 KL |
164 | `inhibit-field-text-motion' to t, or use the `forward-line' function |
165 | instead. For instance, `(forward-line 0)' does the same thing as | |
166 | `(beginning-of-line)', except that it ignores field boundaries. */) | |
5842a27b | 167 | (Lisp_Object n) |
cd645247 | 168 | { |
265a9e55 | 169 | if (NILP (n)) |
48c7cef2 | 170 | XSETFASTINT (n, 1); |
cd645247 | 171 | else |
b7826503 | 172 | CHECK_NUMBER (n); |
cd645247 | 173 | |
0aee588d | 174 | SET_PT (XINT (Fline_beginning_position (n))); |
a731cae2 | 175 | |
cd645247 JB |
176 | return Qnil; |
177 | } | |
178 | ||
a7ca3326 | 179 | DEFUN ("end-of-line", Fend_of_line, Send_of_line, 0, 1, "^p", |
cd21226d | 180 | doc: /* Move point to end of current line (in the logical order). |
8abc9869 MB |
181 | With argument N not nil or 1, move forward N - 1 lines first. |
182 | If point reaches the beginning or end of buffer, it stops there. | |
6b61353c | 183 | To ignore intangibility, bind `inhibit-point-motion-hooks' to t. |
8abc9869 | 184 | |
13c42cc5 KL |
185 | This function constrains point to the current field unless this moves |
186 | point to a different line than the original, unconstrained result. If | |
187 | N is nil or 1, and a rear-sticky field ends at point, the point does | |
188 | not move. To ignore field boundaries bind `inhibit-field-text-motion' | |
189 | to t. */) | |
5842a27b | 190 | (Lisp_Object n) |
cd645247 | 191 | { |
d311d28c | 192 | ptrdiff_t newpos; |
fda3de70 | 193 | |
265a9e55 | 194 | if (NILP (n)) |
48c7cef2 | 195 | XSETFASTINT (n, 1); |
cd645247 | 196 | else |
b7826503 | 197 | CHECK_NUMBER (n); |
cd645247 | 198 | |
fda3de70 RS |
199 | while (1) |
200 | { | |
201 | newpos = XINT (Fline_end_position (n)); | |
202 | SET_PT (newpos); | |
203 | ||
204 | if (PT > newpos | |
205 | && FETCH_CHAR (PT - 1) == '\n') | |
206 | { | |
207 | /* If we skipped over a newline that follows | |
208 | an invisible intangible run, | |
209 | move back to the last tangible position | |
210 | within the line. */ | |
211 | ||
212 | SET_PT (PT - 1); | |
213 | break; | |
214 | } | |
215 | else if (PT > newpos && PT < ZV | |
216 | && FETCH_CHAR (PT) != '\n') | |
217 | /* If we skipped something intangible | |
218 | and now we're not really at eol, | |
219 | keep going. */ | |
220 | n = make_number (1); | |
221 | else | |
222 | break; | |
223 | } | |
cd645247 JB |
224 | |
225 | return Qnil; | |
226 | } | |
227 | ||
228 | DEFUN ("delete-char", Fdelete_char, Sdelete_char, 1, 2, "p\nP", | |
335c5470 PJ |
229 | doc: /* Delete the following N characters (previous if N is negative). |
230 | Optional second arg KILLFLAG non-nil means kill instead (save in kill ring). | |
231 | Interactively, N is the prefix arg, and KILLFLAG is set if | |
b9229673 CY |
232 | N was explicitly specified. |
233 | ||
b8a47412 | 234 | The command `delete-forward-char' is preferable for interactive use. */) |
5842a27b | 235 | (Lisp_Object n, Lisp_Object killflag) |
cd645247 | 236 | { |
40283062 | 237 | EMACS_INT pos; |
9e4fd67b | 238 | |
b7826503 | 239 | CHECK_NUMBER (n); |
cd645247 | 240 | |
049749e6 | 241 | pos = PT + XINT (n); |
265a9e55 | 242 | if (NILP (killflag)) |
cd645247 JB |
243 | { |
244 | if (XINT (n) < 0) | |
245 | { | |
9e4fd67b | 246 | if (pos < BEGV) |
aaf769f1 | 247 | xsignal0 (Qbeginning_of_buffer); |
cd645247 | 248 | else |
9e4fd67b | 249 | del_range (pos, PT); |
cd645247 JB |
250 | } |
251 | else | |
252 | { | |
9e4fd67b | 253 | if (pos > ZV) |
aaf769f1 | 254 | xsignal0 (Qend_of_buffer); |
cd645247 | 255 | else |
9e4fd67b | 256 | del_range (PT, pos); |
cd645247 JB |
257 | } |
258 | } | |
259 | else | |
260 | { | |
261 | call1 (Qkill_forward_chars, n); | |
262 | } | |
263 | return Qnil; | |
264 | } | |
265 | ||
855a0da7 | 266 | static int nonundocount; |
1ac9108a | 267 | |
867d5263 DL |
268 | /* Note that there's code in command_loop_1 which typically avoids |
269 | calling this. */ | |
cd645247 | 270 | DEFUN ("self-insert-command", Fself_insert_command, Sself_insert_command, 1, 1, "p", |
335c5470 | 271 | doc: /* Insert the character you type. |
1ac9108a SM |
272 | Whichever character you type to run this command is inserted. |
273 | Before insertion, `expand-abbrev' is executed if the inserted character does | |
274 | not have word syntax and the previous character in the buffer does. | |
275 | After insertion, the value of `auto-fill-function' is called if the | |
8b76d6f8 SM |
276 | `auto-fill-chars' table has a non-nil value for the inserted character. |
277 | At the end, it runs `post-self-insert-hook'. */) | |
5842a27b | 278 | (Lisp_Object n) |
cd645247 | 279 | { |
1ac9108a | 280 | int remove_boundary = 1; |
1a4236ea | 281 | CHECK_NATNUM (n); |
1ac9108a | 282 | |
1344aad4 | 283 | if (!EQ (Vthis_command, KVAR (current_kboard, Vlast_command))) |
1ac9108a SM |
284 | nonundocount = 0; |
285 | ||
286 | if (NILP (Vexecuting_kbd_macro) | |
287 | && !EQ (minibuf_window, selected_window)) | |
288 | { | |
289 | if (nonundocount <= 0 || nonundocount >= 20) | |
290 | { | |
291 | remove_boundary = 0; | |
292 | nonundocount = 0; | |
293 | } | |
294 | nonundocount++; | |
295 | } | |
296 | ||
297 | if (remove_boundary | |
4b4deea2 | 298 | && CONSP (BVAR (current_buffer, undo_list)) |
464d5a5e SM |
299 | && NILP (XCAR (BVAR (current_buffer, undo_list))) |
300 | /* Only remove auto-added boundaries, not boundaries | |
301 | added be explicit calls to undo-boundary. */ | |
302 | && EQ (BVAR (current_buffer, undo_list), last_undo_boundary)) | |
1ac9108a | 303 | /* Remove the undo_boundary that was just pushed. */ |
4c31be61 | 304 | BSET (current_buffer, undo_list, XCDR (BVAR (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, | |
d311d28c | 311 | XINT (last_command_event)); |
ace1712c | 312 | int val = internal_self_insert (character, XFASTINT (n)); |
8f4e9110 SM |
313 | if (val == 2) |
314 | nonundocount = 0; | |
315 | frame_make_pointer_invisible (); | |
867d5263 | 316 | } |
cd645247 JB |
317 | |
318 | return Qnil; | |
319 | } | |
320 | ||
8f4e9110 | 321 | /* Insert N times character C |
4c6e656f RS |
322 | |
323 | If this insertion is suitable for direct output (completely simple), | |
aa52fef9 RS |
324 | return 0. A value of 1 indicates this *might* not have been simple. |
325 | A value of 2 means this did things that call for an undo boundary. */ | |
4c6e656f | 326 | |
53abaf54 | 327 | static Lisp_Object Qexpand_abbrev; |
29208e82 | 328 | static Lisp_Object Qpost_self_insert_hook; |
53abaf54 | 329 | |
c8197983 | 330 | static int |
ace1712c | 331 | internal_self_insert (int c, EMACS_INT n) |
cd645247 | 332 | { |
cd645247 JB |
333 | int hairy = 0; |
334 | Lisp_Object tem; | |
335 | register enum syntaxcode synt; | |
8f4e9110 | 336 | Lisp_Object overwrite; |
9e4fd67b KH |
337 | /* Length of multi-byte form of C. */ |
338 | int len; | |
339 | /* Working buffer and pointer for multi-byte form of C. */ | |
e55d9cfd | 340 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
d311d28c PE |
341 | ptrdiff_t chars_to_delete = 0; |
342 | ptrdiff_t spaces_to_insert = 0; | |
cd645247 | 343 | |
4b4deea2 | 344 | overwrite = BVAR (current_buffer, overwrite_mode); |
ad44dffe | 345 | if (!NILP (Vbefore_change_functions) || !NILP (Vafter_change_functions)) |
cd645247 JB |
346 | hairy = 1; |
347 | ||
9e4fd67b | 348 | /* At first, get multi-byte form of C in STR. */ |
4b4deea2 | 349 | if (!NILP (BVAR (current_buffer, enable_multibyte_characters))) |
b9859007 | 350 | { |
e55d9cfd | 351 | len = CHAR_STRING (c, str); |
741263c2 KH |
352 | if (len == 1) |
353 | /* If C has modifier bits, this makes C an appropriate | |
354 | one-byte char. */ | |
355 | c = *str; | |
b9859007 | 356 | } |
9e4fd67b | 357 | else |
38b62842 | 358 | { |
e55d9cfd KH |
359 | str[0] = (SINGLE_BYTE_CHAR_P (c) |
360 | ? c | |
461c2ab9 | 361 | : multibyte_char_to_unibyte (c)); |
38b62842 KH |
362 | len = 1; |
363 | } | |
6bbb0d4a | 364 | if (!NILP (overwrite) |
9e4fd67b | 365 | && PT < ZV) |
cd645247 | 366 | { |
9e4fd67b KH |
367 | /* In overwrite-mode, we substitute a character at point (C2, |
368 | hereafter) by C. For that, we delete C2 in advance. But, | |
369 | just substituting C2 by C may move a remaining text in the | |
370 | line to the right or to the left, which is not preferable. | |
371 | So we insert more spaces or delete more characters in the | |
372 | following cases: if C is narrower than C2, after deleting C2, | |
373 | we fill columns with spaces, if C is wider than C2, we delete | |
374 | C2 and several characters following C2. */ | |
375 | ||
216b9443 RS |
376 | /* This is the character after point. */ |
377 | int c2 = FETCH_CHAR (PT_BYTE); | |
378 | ||
d311d28c PE |
379 | int cwidth; |
380 | ||
37c0ed09 RS |
381 | /* Overwriting in binary-mode always replaces C2 by C. |
382 | Overwriting in textual-mode doesn't always do that. | |
383 | It inserts newlines in the usual way, | |
384 | and inserts any character at end of line | |
385 | or before a tab if it doesn't use the whole width of the tab. */ | |
8f4e9110 | 386 | if (EQ (overwrite, Qoverwrite_mode_binary)) |
d311d28c PE |
387 | chars_to_delete = min (n, PTRDIFF_MAX); |
388 | else if (c != '\n' && c2 != '\n' | |
389 | && (cwidth = XFASTINT (Fchar_width (make_number (c)))) != 0) | |
9e4fd67b | 390 | { |
d311d28c PE |
391 | ptrdiff_t pos = PT; |
392 | ptrdiff_t pos_byte = PT_BYTE; | |
393 | ptrdiff_t curcol = current_column (); | |
7831777b | 394 | |
d311d28c | 395 | if (n <= (min (MOST_POSITIVE_FIXNUM, PTRDIFF_MAX) - curcol) / cwidth) |
1e12733b | 396 | { |
d311d28c PE |
397 | /* Column the cursor should be placed at after this insertion. |
398 | The value should be calculated only when necessary. */ | |
399 | ptrdiff_t target_clm = curcol + n * cwidth; | |
400 | ||
401 | /* The actual cursor position after the trial of moving | |
402 | to column TARGET_CLM. It is greater than TARGET_CLM | |
403 | if the TARGET_CLM is middle of multi-column | |
404 | character. In that case, the new point is set after | |
405 | that character. */ | |
406 | ptrdiff_t actual_clm | |
407 | = XFASTINT (Fmove_to_column (make_number (target_clm), Qnil)); | |
408 | ||
409 | chars_to_delete = PT - pos; | |
410 | ||
411 | if (actual_clm > target_clm) | |
412 | { | |
413 | /* We will delete too many columns. Let's fill columns | |
414 | by spaces so that the remaining text won't move. */ | |
415 | ptrdiff_t actual = PT_BYTE; | |
416 | DEC_POS (actual); | |
417 | if (FETCH_CHAR (actual) == '\t') | |
418 | /* Rather than add spaces, let's just keep the tab. */ | |
419 | chars_to_delete--; | |
420 | else | |
421 | spaces_to_insert = actual_clm - target_clm; | |
422 | } | |
423 | ||
424 | SET_PT_BOTH (pos, pos_byte); | |
1e12733b | 425 | } |
9e4fd67b | 426 | } |
aa52fef9 | 427 | hairy = 2; |
cd645247 | 428 | } |
9ad8bfb0 | 429 | |
9ad8bfb0 KH |
430 | synt = SYNTAX (c); |
431 | ||
4b4deea2 | 432 | if (!NILP (BVAR (current_buffer, abbrev_mode)) |
9ad8bfb0 | 433 | && synt != Sword |
4b4deea2 | 434 | && NILP (BVAR (current_buffer, read_only)) |
9ad8bfb0 | 435 | && PT > BEGV |
4b4deea2 | 436 | && (SYNTAX (!NILP (BVAR (current_buffer, enable_multibyte_characters)) |
a2e5caf7 SM |
437 | ? XFASTINT (Fprevious_char ()) |
438 | : UNIBYTE_TO_CHAR (XFASTINT (Fprevious_char ()))) | |
439 | == Sword)) | |
cd645247 | 440 | { |
ee8caabb | 441 | int modiff = MODIFF; |
e57640c0 RS |
442 | Lisp_Object sym; |
443 | ||
53abaf54 | 444 | sym = call0 (Qexpand_abbrev); |
e57640c0 | 445 | |
c87dbfd0 | 446 | /* If we expanded an abbrev which has a hook, |
9317a902 | 447 | and the hook has a non-nil `no-self-insert' property, |
e57640c0 | 448 | return right away--don't really self-insert. */ |
8271d590 | 449 | if (SYMBOLP (sym) && ! NILP (sym) |
c644523b DA |
450 | && ! NILP (XSYMBOL (sym)->function) |
451 | && SYMBOLP (XSYMBOL (sym)->function)) | |
e57640c0 RS |
452 | { |
453 | Lisp_Object prop; | |
c644523b | 454 | prop = Fget (XSYMBOL (sym)->function, intern ("no-self-insert")); |
e57640c0 | 455 | if (! NILP (prop)) |
6787d111 | 456 | return 1; |
e57640c0 RS |
457 | } |
458 | ||
ee8caabb | 459 | if (MODIFF != modiff) |
aa52fef9 | 460 | hairy = 2; |
cd645247 | 461 | } |
e744155a | 462 | |
049749e6 | 463 | if (chars_to_delete) |
e744155a | 464 | { |
4b4deea2 | 465 | int mc = ((NILP (BVAR (current_buffer, enable_multibyte_characters)) |
8f4e9110 SM |
466 | && SINGLE_BYTE_CHAR_P (c)) |
467 | ? UNIBYTE_TO_CHAR (c) : c); | |
468 | Lisp_Object string = Fmake_string (make_number (n), make_number (mc)); | |
2e35f1a2 | 469 | |
e744155a RS |
470 | if (spaces_to_insert) |
471 | { | |
472 | tem = Fmake_string (make_number (spaces_to_insert), | |
473 | make_number (' ')); | |
8f4e9110 | 474 | string = concat2 (string, tem); |
e744155a RS |
475 | } |
476 | ||
5f65b1b4 | 477 | replace_range (PT, PT + chars_to_delete, string, 1, 1, 1); |
c96e5d6a | 478 | Fforward_char (make_number (n + spaces_to_insert)); |
8f4e9110 SM |
479 | } |
480 | else if (n > 1) | |
481 | { | |
482 | USE_SAFE_ALLOCA; | |
b68864e5 | 483 | char *strn, *p; |
0065d054 | 484 | SAFE_NALLOCA (strn, len, n); |
8f4e9110 SM |
485 | for (p = strn; n > 0; n--, p += len) |
486 | memcpy (p, str, len); | |
487 | insert_and_inherit (strn, p - strn); | |
488 | SAFE_FREE (); | |
e744155a | 489 | } |
84b28888 | 490 | else if (n > 0) |
b68864e5 | 491 | insert_and_inherit ((char *) str, len); |
e744155a | 492 | |
01428933 KH |
493 | if ((CHAR_TABLE_P (Vauto_fill_chars) |
494 | ? !NILP (CHAR_TABLE_REF (Vauto_fill_chars, c)) | |
495 | : (c == ' ' || c == '\n')) | |
4b4deea2 | 496 | && !NILP (BVAR (current_buffer, auto_fill_function))) |
cd645247 | 497 | { |
930d429c | 498 | Lisp_Object auto_fill_result; |
76bb6dbb | 499 | |
9e4fd67b | 500 | if (c == '\n') |
049749e6 RS |
501 | /* After inserting a newline, move to previous line and fill |
502 | that. Must have the newline in place already so filling and | |
503 | justification, if any, know where the end is going to be. */ | |
504 | SET_PT_BOTH (PT - 1, PT_BYTE - 1); | |
930d429c | 505 | auto_fill_result = call0 (BVAR (current_buffer, auto_fill_function)); |
4d94dd9a RS |
506 | /* Test PT < ZV in case the auto-fill-function is strange. */ |
507 | if (c == '\n' && PT < ZV) | |
049749e6 | 508 | SET_PT_BOTH (PT + 1, PT_BYTE + 1); |
930d429c | 509 | if (!NILP (auto_fill_result)) |
76bb6dbb | 510 | hairy = 2; |
cd645247 | 511 | } |
189fad68 | 512 | |
a2e5caf7 | 513 | /* Run hooks for electric keys. */ |
dee091a3 | 514 | Frun_hooks (1, &Qpost_self_insert_hook); |
a2e5caf7 | 515 | |
cd645247 JB |
516 | return hairy; |
517 | } | |
518 | \f | |
519 | /* module initialization */ | |
520 | ||
dfcf069d | 521 | void |
971de7fb | 522 | syms_of_cmds (void) |
cd645247 | 523 | { |
cd3520a4 JB |
524 | DEFSYM (Qkill_backward_chars, "kill-backward-chars"); |
525 | DEFSYM (Qkill_forward_chars, "kill-forward-chars"); | |
526 | DEFSYM (Qoverwrite_mode_binary, "overwrite-mode-binary"); | |
527 | DEFSYM (Qexpand_abbrev, "expand-abbrev"); | |
528 | DEFSYM (Qpost_self_insert_hook, "post-self-insert-hook"); | |
189fad68 | 529 | |
29208e82 | 530 | DEFVAR_LISP ("post-self-insert-hook", Vpost_self_insert_hook, |
a2e5caf7 | 531 | doc: /* Hook run at the end of `self-insert-command'. |
2b5491fa | 532 | This is run after inserting the character. */); |
a2e5caf7 | 533 | Vpost_self_insert_hook = Qnil; |
189fad68 | 534 | |
9e4fd67b | 535 | defsubr (&Sforward_point); |
cd645247 JB |
536 | defsubr (&Sforward_char); |
537 | defsubr (&Sbackward_char); | |
538 | defsubr (&Sforward_line); | |
539 | defsubr (&Sbeginning_of_line); | |
540 | defsubr (&Send_of_line); | |
541 | ||
542 | defsubr (&Sdelete_char); | |
cd645247 | 543 | defsubr (&Sself_insert_command); |
cd645247 JB |
544 | } |
545 | ||
dfcf069d | 546 | void |
971de7fb | 547 | keys_of_cmds (void) |
cd645247 JB |
548 | { |
549 | int n; | |
550 | ||
1ac9108a | 551 | nonundocount = 0; |
cbf65115 | 552 | initial_define_key (global_map, Ctl ('I'), "self-insert-command"); |
cd645247 JB |
553 | for (n = 040; n < 0177; n++) |
554 | initial_define_key (global_map, n, "self-insert-command"); | |
cf9cdc11 RS |
555 | #ifdef MSDOS |
556 | for (n = 0200; n < 0240; n++) | |
557 | initial_define_key (global_map, n, "self-insert-command"); | |
558 | #endif | |
94748cb9 | 559 | for (n = 0240; n < 0400; n++) |
eb46da6a | 560 | initial_define_key (global_map, n, "self-insert-command"); |
cd645247 JB |
561 | |
562 | initial_define_key (global_map, Ctl ('A'), "beginning-of-line"); | |
563 | initial_define_key (global_map, Ctl ('B'), "backward-char"); | |
cd645247 JB |
564 | initial_define_key (global_map, Ctl ('E'), "end-of-line"); |
565 | initial_define_key (global_map, Ctl ('F'), "forward-char"); | |
cd645247 | 566 | } |