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35692fe0 | 1 | /* Lisp functions pertaining to editing. |
3a22ee35 | 2 | Copyright (C) 1985,86,87,89,93,94 Free Software Foundation, Inc. |
35692fe0 JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 1, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | ||
738429d1 JB |
21 | #include <sys/types.h> |
22 | ||
18160b98 | 23 | #include <config.h> |
bfb61299 JB |
24 | |
25 | #ifdef VMS | |
956ace37 | 26 | #include "vms-pwd.h" |
bfb61299 | 27 | #else |
35692fe0 | 28 | #include <pwd.h> |
bfb61299 JB |
29 | #endif |
30 | ||
35692fe0 | 31 | #include "lisp.h" |
74d6d8c5 | 32 | #include "intervals.h" |
35692fe0 JB |
33 | #include "buffer.h" |
34 | #include "window.h" | |
35 | ||
956ace37 | 36 | #include "systime.h" |
35692fe0 JB |
37 | |
38 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
39 | #define max(a, b) ((a) > (b) ? (a) : (b)) | |
40 | ||
b1b0ee5a KH |
41 | extern void insert_from_buffer (); |
42 | ||
35692fe0 JB |
43 | /* Some static data, and a function to initialize it for each run */ |
44 | ||
45 | Lisp_Object Vsystem_name; | |
46 | Lisp_Object Vuser_real_name; /* login name of current user ID */ | |
47 | Lisp_Object Vuser_full_name; /* full name of current user */ | |
2c9ae24e | 48 | Lisp_Object Vuser_name; /* user name from LOGNAME or USER */ |
35692fe0 JB |
49 | |
50 | void | |
51 | init_editfns () | |
52 | { | |
52b14ac0 | 53 | char *user_name; |
35692fe0 JB |
54 | register unsigned char *p, *q, *r; |
55 | struct passwd *pw; /* password entry for the current user */ | |
56 | extern char *index (); | |
57 | Lisp_Object tem; | |
58 | ||
59 | /* Set up system_name even when dumping. */ | |
ac988277 | 60 | init_system_name (); |
35692fe0 JB |
61 | |
62 | #ifndef CANNOT_DUMP | |
63 | /* Don't bother with this on initial start when just dumping out */ | |
64 | if (!initialized) | |
65 | return; | |
66 | #endif /* not CANNOT_DUMP */ | |
67 | ||
68 | pw = (struct passwd *) getpwuid (getuid ()); | |
87485d6f MW |
69 | #ifdef MSDOS |
70 | /* We let the real user name default to "root" because that's quite | |
71 | accurate on MSDOG and because it lets Emacs find the init file. | |
72 | (The DVX libraries override the Djgpp libraries here.) */ | |
73 | Vuser_real_name = build_string (pw ? pw->pw_name : "root"); | |
74 | #else | |
35692fe0 | 75 | Vuser_real_name = build_string (pw ? pw->pw_name : "unknown"); |
87485d6f | 76 | #endif |
35692fe0 | 77 | |
52b14ac0 JB |
78 | /* Get the effective user name, by consulting environment variables, |
79 | or the effective uid if those are unset. */ | |
2c9ae24e | 80 | user_name = (char *) getenv ("LOGNAME"); |
35692fe0 | 81 | if (!user_name) |
4691c06d RS |
82 | #ifdef WINDOWSNT |
83 | user_name = (char *) getenv ("USERNAME"); /* it's USERNAME on NT */ | |
84 | #else /* WINDOWSNT */ | |
2c9ae24e | 85 | user_name = (char *) getenv ("USER"); |
4691c06d | 86 | #endif /* WINDOWSNT */ |
52b14ac0 JB |
87 | if (!user_name) |
88 | { | |
89 | pw = (struct passwd *) getpwuid (geteuid ()); | |
90 | user_name = (char *) (pw ? pw->pw_name : "unknown"); | |
91 | } | |
92 | Vuser_name = build_string (user_name); | |
35692fe0 | 93 | |
52b14ac0 JB |
94 | /* If the user name claimed in the environment vars differs from |
95 | the real uid, use the claimed name to find the full name. */ | |
35692fe0 | 96 | tem = Fstring_equal (Vuser_name, Vuser_real_name); |
56a98455 | 97 | if (NILP (tem)) |
52b14ac0 | 98 | pw = (struct passwd *) getpwnam (XSTRING (Vuser_name)->data); |
35692fe0 JB |
99 | |
100 | p = (unsigned char *) (pw ? USER_FULL_NAME : "unknown"); | |
101 | q = (unsigned char *) index (p, ','); | |
102 | Vuser_full_name = make_string (p, q ? q - p : strlen (p)); | |
103 | ||
104 | #ifdef AMPERSAND_FULL_NAME | |
105 | p = XSTRING (Vuser_full_name)->data; | |
106 | q = (char *) index (p, '&'); | |
107 | /* Substitute the login name for the &, upcasing the first character. */ | |
108 | if (q) | |
109 | { | |
110 | r = (char *) alloca (strlen (p) + XSTRING (Vuser_name)->size + 1); | |
111 | bcopy (p, r, q - p); | |
112 | r[q - p] = 0; | |
52b14ac0 | 113 | strcat (r, XSTRING (Vuser_name)->data); |
35692fe0 JB |
114 | r[q - p] = UPCASE (r[q - p]); |
115 | strcat (r, q + 1); | |
116 | Vuser_full_name = build_string (r); | |
117 | } | |
118 | #endif /* AMPERSAND_FULL_NAME */ | |
119 | } | |
120 | \f | |
121 | DEFUN ("char-to-string", Fchar_to_string, Schar_to_string, 1, 1, 0, | |
122 | "Convert arg CHAR to a one-character string containing that character.") | |
123 | (n) | |
124 | Lisp_Object n; | |
125 | { | |
126 | char c; | |
127 | CHECK_NUMBER (n, 0); | |
128 | ||
129 | c = XINT (n); | |
130 | return make_string (&c, 1); | |
131 | } | |
132 | ||
133 | DEFUN ("string-to-char", Fstring_to_char, Sstring_to_char, 1, 1, 0, | |
134 | "Convert arg STRING to a character, the first character of that string.") | |
135 | (str) | |
136 | register Lisp_Object str; | |
137 | { | |
138 | register Lisp_Object val; | |
139 | register struct Lisp_String *p; | |
140 | CHECK_STRING (str, 0); | |
141 | ||
142 | p = XSTRING (str); | |
143 | if (p->size) | |
55561c63 | 144 | XSETFASTINT (val, ((unsigned char *) p->data)[0]); |
35692fe0 | 145 | else |
55561c63 | 146 | XSETFASTINT (val, 0); |
35692fe0 JB |
147 | return val; |
148 | } | |
149 | \f | |
150 | static Lisp_Object | |
151 | buildmark (val) | |
152 | int val; | |
153 | { | |
154 | register Lisp_Object mark; | |
155 | mark = Fmake_marker (); | |
156 | Fset_marker (mark, make_number (val), Qnil); | |
157 | return mark; | |
158 | } | |
159 | ||
160 | DEFUN ("point", Fpoint, Spoint, 0, 0, 0, | |
161 | "Return value of point, as an integer.\n\ | |
162 | Beginning of buffer is position (point-min)") | |
163 | () | |
164 | { | |
165 | Lisp_Object temp; | |
55561c63 | 166 | XSETFASTINT (temp, point); |
35692fe0 JB |
167 | return temp; |
168 | } | |
169 | ||
170 | DEFUN ("point-marker", Fpoint_marker, Spoint_marker, 0, 0, 0, | |
171 | "Return value of point, as a marker object.") | |
172 | () | |
173 | { | |
174 | return buildmark (point); | |
175 | } | |
176 | ||
177 | int | |
178 | clip_to_bounds (lower, num, upper) | |
179 | int lower, num, upper; | |
180 | { | |
181 | if (num < lower) | |
182 | return lower; | |
183 | else if (num > upper) | |
184 | return upper; | |
185 | else | |
186 | return num; | |
187 | } | |
188 | ||
189 | DEFUN ("goto-char", Fgoto_char, Sgoto_char, 1, 1, "NGoto char: ", | |
190 | "Set point to POSITION, a number or marker.\n\ | |
191 | Beginning of buffer is position (point-min), end is (point-max).") | |
192 | (n) | |
193 | register Lisp_Object n; | |
194 | { | |
195 | CHECK_NUMBER_COERCE_MARKER (n, 0); | |
196 | ||
197 | SET_PT (clip_to_bounds (BEGV, XINT (n), ZV)); | |
198 | return n; | |
199 | } | |
200 | ||
201 | static Lisp_Object | |
202 | region_limit (beginningp) | |
203 | int beginningp; | |
204 | { | |
646d9d18 | 205 | extern Lisp_Object Vmark_even_if_inactive; /* Defined in callint.c. */ |
35692fe0 | 206 | register Lisp_Object m; |
c9dd14e1 RM |
207 | if (!NILP (Vtransient_mark_mode) && NILP (Vmark_even_if_inactive) |
208 | && NILP (current_buffer->mark_active)) | |
209 | Fsignal (Qmark_inactive, Qnil); | |
35692fe0 | 210 | m = Fmarker_position (current_buffer->mark); |
56a98455 | 211 | if (NILP (m)) error ("There is no region now"); |
35692fe0 JB |
212 | if ((point < XFASTINT (m)) == beginningp) |
213 | return (make_number (point)); | |
214 | else | |
215 | return (m); | |
216 | } | |
217 | ||
218 | DEFUN ("region-beginning", Fregion_beginning, Sregion_beginning, 0, 0, 0, | |
219 | "Return position of beginning of region, as an integer.") | |
220 | () | |
221 | { | |
222 | return (region_limit (1)); | |
223 | } | |
224 | ||
225 | DEFUN ("region-end", Fregion_end, Sregion_end, 0, 0, 0, | |
226 | "Return position of end of region, as an integer.") | |
227 | () | |
228 | { | |
229 | return (region_limit (0)); | |
230 | } | |
231 | ||
232 | #if 0 /* now in lisp code */ | |
233 | DEFUN ("mark", Fmark, Smark, 0, 0, 0, | |
234 | "Return this buffer's mark value as integer, or nil if no mark.\n\ | |
235 | If you are using this in an editing command, you are most likely making\n\ | |
236 | a mistake; see the documentation of `set-mark'.") | |
237 | () | |
238 | { | |
239 | return Fmarker_position (current_buffer->mark); | |
240 | } | |
241 | #endif /* commented out code */ | |
242 | ||
243 | DEFUN ("mark-marker", Fmark_marker, Smark_marker, 0, 0, 0, | |
244 | "Return this buffer's mark, as a marker object.\n\ | |
245 | Watch out! Moving this marker changes the mark position.\n\ | |
246 | If you set the marker not to point anywhere, the buffer will have no mark.") | |
247 | () | |
248 | { | |
249 | return current_buffer->mark; | |
250 | } | |
251 | ||
252 | #if 0 /* this is now in lisp code */ | |
253 | DEFUN ("set-mark", Fset_mark, Sset_mark, 1, 1, 0, | |
254 | "Set this buffer's mark to POS. Don't use this function!\n\ | |
255 | That is to say, don't use this function unless you want\n\ | |
256 | the user to see that the mark has moved, and you want the previous\n\ | |
257 | mark position to be lost.\n\ | |
258 | \n\ | |
259 | Normally, when a new mark is set, the old one should go on the stack.\n\ | |
260 | This is why most applications should use push-mark, not set-mark.\n\ | |
261 | \n\ | |
262 | Novice programmers often try to use the mark for the wrong purposes.\n\ | |
263 | The mark saves a location for the user's convenience.\n\ | |
264 | Most editing commands should not alter the mark.\n\ | |
265 | To remember a location for internal use in the Lisp program,\n\ | |
266 | store it in a Lisp variable. Example:\n\ | |
267 | \n\ | |
268 | (let ((beg (point))) (forward-line 1) (delete-region beg (point))).") | |
269 | (pos) | |
270 | Lisp_Object pos; | |
271 | { | |
56a98455 | 272 | if (NILP (pos)) |
35692fe0 JB |
273 | { |
274 | current_buffer->mark = Qnil; | |
275 | return Qnil; | |
276 | } | |
277 | CHECK_NUMBER_COERCE_MARKER (pos, 0); | |
278 | ||
56a98455 | 279 | if (NILP (current_buffer->mark)) |
35692fe0 JB |
280 | current_buffer->mark = Fmake_marker (); |
281 | ||
282 | Fset_marker (current_buffer->mark, pos, Qnil); | |
283 | return pos; | |
284 | } | |
285 | #endif /* commented-out code */ | |
286 | ||
287 | Lisp_Object | |
288 | save_excursion_save () | |
289 | { | |
0e2c9c70 JB |
290 | register int visible = (XBUFFER (XWINDOW (selected_window)->buffer) |
291 | == current_buffer); | |
35692fe0 JB |
292 | |
293 | return Fcons (Fpoint_marker (), | |
0e2c9c70 | 294 | Fcons (Fcopy_marker (current_buffer->mark), |
9772455e RS |
295 | Fcons (visible ? Qt : Qnil, |
296 | current_buffer->mark_active))); | |
35692fe0 JB |
297 | } |
298 | ||
299 | Lisp_Object | |
300 | save_excursion_restore (info) | |
301 | register Lisp_Object info; | |
302 | { | |
03d18690 | 303 | register Lisp_Object tem, tem1, omark, nmark; |
35692fe0 JB |
304 | |
305 | tem = Fmarker_buffer (Fcar (info)); | |
306 | /* If buffer being returned to is now deleted, avoid error */ | |
307 | /* Otherwise could get error here while unwinding to top level | |
308 | and crash */ | |
309 | /* In that case, Fmarker_buffer returns nil now. */ | |
56a98455 | 310 | if (NILP (tem)) |
35692fe0 JB |
311 | return Qnil; |
312 | Fset_buffer (tem); | |
313 | tem = Fcar (info); | |
314 | Fgoto_char (tem); | |
315 | unchain_marker (tem); | |
316 | tem = Fcar (Fcdr (info)); | |
03d18690 | 317 | omark = Fmarker_position (current_buffer->mark); |
35692fe0 | 318 | Fset_marker (current_buffer->mark, tem, Fcurrent_buffer ()); |
03d18690 | 319 | nmark = Fmarker_position (tem); |
35692fe0 JB |
320 | unchain_marker (tem); |
321 | tem = Fcdr (Fcdr (info)); | |
ef580991 RS |
322 | #if 0 /* We used to make the current buffer visible in the selected window |
323 | if that was true previously. That avoids some anomalies. | |
324 | But it creates others, and it wasn't documented, and it is simpler | |
325 | and cleaner never to alter the window/buffer connections. */ | |
9772455e RS |
326 | tem1 = Fcar (tem); |
327 | if (!NILP (tem1) | |
0e2c9c70 | 328 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) |
35692fe0 | 329 | Fswitch_to_buffer (Fcurrent_buffer (), Qnil); |
ef580991 | 330 | #endif /* 0 */ |
9772455e RS |
331 | |
332 | tem1 = current_buffer->mark_active; | |
333 | current_buffer->mark_active = Fcdr (tem); | |
9fed2b18 RS |
334 | if (!NILP (Vrun_hooks)) |
335 | { | |
03d18690 RS |
336 | /* If mark is active now, and either was not active |
337 | or was at a different place, run the activate hook. */ | |
9fed2b18 | 338 | if (! NILP (current_buffer->mark_active)) |
03d18690 RS |
339 | { |
340 | if (! EQ (omark, nmark)) | |
341 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
342 | } | |
343 | /* If mark has ceased to be active, run deactivate hook. */ | |
9fed2b18 RS |
344 | else if (! NILP (tem1)) |
345 | call1 (Vrun_hooks, intern ("deactivate-mark-hook")); | |
346 | } | |
35692fe0 JB |
347 | return Qnil; |
348 | } | |
349 | ||
350 | DEFUN ("save-excursion", Fsave_excursion, Ssave_excursion, 0, UNEVALLED, 0, | |
351 | "Save point, mark, and current buffer; execute BODY; restore those things.\n\ | |
352 | Executes BODY just like `progn'.\n\ | |
353 | The values of point, mark and the current buffer are restored\n\ | |
9772455e RS |
354 | even in case of abnormal exit (throw or error).\n\ |
355 | The state of activation of the mark is also restored.") | |
35692fe0 JB |
356 | (args) |
357 | Lisp_Object args; | |
358 | { | |
359 | register Lisp_Object val; | |
360 | int count = specpdl_ptr - specpdl; | |
361 | ||
362 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
363 | ||
364 | val = Fprogn (args); | |
365 | return unbind_to (count, val); | |
366 | } | |
367 | \f | |
368 | DEFUN ("buffer-size", Fbufsize, Sbufsize, 0, 0, 0, | |
369 | "Return the number of characters in the current buffer.") | |
370 | () | |
371 | { | |
372 | Lisp_Object temp; | |
55561c63 | 373 | XSETFASTINT (temp, Z - BEG); |
35692fe0 JB |
374 | return temp; |
375 | } | |
376 | ||
377 | DEFUN ("point-min", Fpoint_min, Spoint_min, 0, 0, 0, | |
378 | "Return the minimum permissible value of point in the current buffer.\n\ | |
4c390850 | 379 | This is 1, unless narrowing (a buffer restriction) is in effect.") |
35692fe0 JB |
380 | () |
381 | { | |
382 | Lisp_Object temp; | |
55561c63 | 383 | XSETFASTINT (temp, BEGV); |
35692fe0 JB |
384 | return temp; |
385 | } | |
386 | ||
387 | DEFUN ("point-min-marker", Fpoint_min_marker, Spoint_min_marker, 0, 0, 0, | |
388 | "Return a marker to the minimum permissible value of point in this buffer.\n\ | |
4c390850 | 389 | This is the beginning, unless narrowing (a buffer restriction) is in effect.") |
35692fe0 JB |
390 | () |
391 | { | |
392 | return buildmark (BEGV); | |
393 | } | |
394 | ||
395 | DEFUN ("point-max", Fpoint_max, Spoint_max, 0, 0, 0, | |
396 | "Return the maximum permissible value of point in the current buffer.\n\ | |
4c390850 RS |
397 | This is (1+ (buffer-size)), unless narrowing (a buffer restriction)\n\ |
398 | is in effect, in which case it is less.") | |
35692fe0 JB |
399 | () |
400 | { | |
401 | Lisp_Object temp; | |
55561c63 | 402 | XSETFASTINT (temp, ZV); |
35692fe0 JB |
403 | return temp; |
404 | } | |
405 | ||
406 | DEFUN ("point-max-marker", Fpoint_max_marker, Spoint_max_marker, 0, 0, 0, | |
407 | "Return a marker to the maximum permissible value of point in this buffer.\n\ | |
4c390850 RS |
408 | This is (1+ (buffer-size)), unless narrowing (a buffer restriction)\n\ |
409 | is in effect, in which case it is less.") | |
35692fe0 JB |
410 | () |
411 | { | |
412 | return buildmark (ZV); | |
413 | } | |
414 | ||
850a8179 JB |
415 | DEFUN ("following-char", Ffollowing_char, Sfollowing_char, 0, 0, 0, |
416 | "Return the character following point, as a number.\n\ | |
417 | At the end of the buffer or accessible region, return 0.") | |
35692fe0 JB |
418 | () |
419 | { | |
420 | Lisp_Object temp; | |
850a8179 | 421 | if (point >= ZV) |
55561c63 | 422 | XSETFASTINT (temp, 0); |
850a8179 | 423 | else |
55561c63 | 424 | XSETFASTINT (temp, FETCH_CHAR (point)); |
35692fe0 JB |
425 | return temp; |
426 | } | |
427 | ||
850a8179 JB |
428 | DEFUN ("preceding-char", Fprevious_char, Sprevious_char, 0, 0, 0, |
429 | "Return the character preceding point, as a number.\n\ | |
430 | At the beginning of the buffer or accessible region, return 0.") | |
35692fe0 JB |
431 | () |
432 | { | |
433 | Lisp_Object temp; | |
434 | if (point <= BEGV) | |
55561c63 | 435 | XSETFASTINT (temp, 0); |
35692fe0 | 436 | else |
55561c63 | 437 | XSETFASTINT (temp, FETCH_CHAR (point - 1)); |
35692fe0 JB |
438 | return temp; |
439 | } | |
440 | ||
441 | DEFUN ("bobp", Fbobp, Sbobp, 0, 0, 0, | |
442 | "Return T if point is at the beginning of the buffer.\n\ | |
443 | If the buffer is narrowed, this means the beginning of the narrowed part.") | |
444 | () | |
445 | { | |
446 | if (point == BEGV) | |
447 | return Qt; | |
448 | return Qnil; | |
449 | } | |
450 | ||
451 | DEFUN ("eobp", Feobp, Seobp, 0, 0, 0, | |
452 | "Return T if point is at the end of the buffer.\n\ | |
453 | If the buffer is narrowed, this means the end of the narrowed part.") | |
454 | () | |
455 | { | |
456 | if (point == ZV) | |
457 | return Qt; | |
458 | return Qnil; | |
459 | } | |
460 | ||
461 | DEFUN ("bolp", Fbolp, Sbolp, 0, 0, 0, | |
462 | "Return T if point is at the beginning of a line.") | |
463 | () | |
464 | { | |
465 | if (point == BEGV || FETCH_CHAR (point - 1) == '\n') | |
466 | return Qt; | |
467 | return Qnil; | |
468 | } | |
469 | ||
470 | DEFUN ("eolp", Feolp, Seolp, 0, 0, 0, | |
471 | "Return T if point is at the end of a line.\n\ | |
472 | `End of a line' includes point being at the end of the buffer.") | |
473 | () | |
474 | { | |
475 | if (point == ZV || FETCH_CHAR (point) == '\n') | |
476 | return Qt; | |
477 | return Qnil; | |
478 | } | |
479 | ||
480 | DEFUN ("char-after", Fchar_after, Schar_after, 1, 1, 0, | |
481 | "Return character in current buffer at position POS.\n\ | |
482 | POS is an integer or a buffer pointer.\n\ | |
483 | If POS is out of range, the value is nil.") | |
484 | (pos) | |
485 | Lisp_Object pos; | |
486 | { | |
487 | register Lisp_Object val; | |
488 | register int n; | |
489 | ||
490 | CHECK_NUMBER_COERCE_MARKER (pos, 0); | |
491 | ||
492 | n = XINT (pos); | |
493 | if (n < BEGV || n >= ZV) return Qnil; | |
494 | ||
55561c63 | 495 | XSETFASTINT (val, FETCH_CHAR (n)); |
35692fe0 JB |
496 | return val; |
497 | } | |
498 | \f | |
87485d6f | 499 | DEFUN ("user-login-name", Fuser_login_name, Suser_login_name, 0, 1, 0, |
35692fe0 JB |
500 | "Return the name under which the user logged in, as a string.\n\ |
501 | This is based on the effective uid, not the real uid.\n\ | |
2c9ae24e | 502 | Also, if the environment variable LOGNAME or USER is set,\n\ |
87485d6f MW |
503 | that determines the value of this function.\n\n\ |
504 | If optional argument UID is an integer, return the login name of the user\n\ | |
505 | with that uid, or nil if there is no such user.") | |
506 | (uid) | |
507 | Lisp_Object uid; | |
35692fe0 | 508 | { |
87485d6f MW |
509 | struct passwd *pw; |
510 | ||
f8a0e364 RS |
511 | /* Set up the user name info if we didn't do it before. |
512 | (That can happen if Emacs is dumpable | |
513 | but you decide to run `temacs -l loadup' and not dump. */ | |
514 | if (INTEGERP (Vuser_name)) | |
515 | init_editfns (); | |
87485d6f MW |
516 | |
517 | if (NILP (uid)) | |
518 | return Vuser_name; | |
519 | ||
520 | CHECK_NUMBER (uid, 0); | |
521 | pw = (struct passwd *) getpwuid (XINT (uid)); | |
522 | return (pw ? build_string (pw->pw_name) : Qnil); | |
35692fe0 JB |
523 | } |
524 | ||
525 | DEFUN ("user-real-login-name", Fuser_real_login_name, Suser_real_login_name, | |
526 | 0, 0, 0, | |
527 | "Return the name of the user's real uid, as a string.\n\ | |
9658bdd0 | 528 | This ignores the environment variables LOGNAME and USER, so it differs from\n\ |
b1da234a | 529 | `user-login-name' when running under `su'.") |
35692fe0 JB |
530 | () |
531 | { | |
f8a0e364 RS |
532 | /* Set up the user name info if we didn't do it before. |
533 | (That can happen if Emacs is dumpable | |
534 | but you decide to run `temacs -l loadup' and not dump. */ | |
535 | if (INTEGERP (Vuser_name)) | |
536 | init_editfns (); | |
35692fe0 JB |
537 | return Vuser_real_name; |
538 | } | |
539 | ||
540 | DEFUN ("user-uid", Fuser_uid, Suser_uid, 0, 0, 0, | |
541 | "Return the effective uid of Emacs, as an integer.") | |
542 | () | |
543 | { | |
544 | return make_number (geteuid ()); | |
545 | } | |
546 | ||
547 | DEFUN ("user-real-uid", Fuser_real_uid, Suser_real_uid, 0, 0, 0, | |
548 | "Return the real uid of Emacs, as an integer.") | |
549 | () | |
550 | { | |
551 | return make_number (getuid ()); | |
552 | } | |
553 | ||
554 | DEFUN ("user-full-name", Fuser_full_name, Suser_full_name, 0, 0, 0, | |
555 | "Return the full name of the user logged in, as a string.") | |
556 | () | |
557 | { | |
558 | return Vuser_full_name; | |
559 | } | |
560 | ||
561 | DEFUN ("system-name", Fsystem_name, Ssystem_name, 0, 0, 0, | |
562 | "Return the name of the machine you are running on, as a string.") | |
563 | () | |
564 | { | |
565 | return Vsystem_name; | |
566 | } | |
567 | ||
ac988277 KH |
568 | /* For the benefit of callers who don't want to include lisp.h */ |
569 | char * | |
570 | get_system_name () | |
571 | { | |
316506b2 | 572 | return (char *) XSTRING (Vsystem_name)->data; |
ac988277 KH |
573 | } |
574 | ||
7fd233b3 RS |
575 | DEFUN ("emacs-pid", Femacs_pid, Semacs_pid, 0, 0, 0, |
576 | "Return the process ID of Emacs, as an integer.") | |
577 | () | |
578 | { | |
579 | return make_number (getpid ()); | |
580 | } | |
581 | ||
d940e0e4 | 582 | DEFUN ("current-time", Fcurrent_time, Scurrent_time, 0, 0, 0, |
956ace37 JB |
583 | "Return the current time, as the number of seconds since 12:00 AM January 1970.\n\ |
584 | The time is returned as a list of three integers. The first has the\n\ | |
585 | most significant 16 bits of the seconds, while the second has the\n\ | |
586 | least significant 16 bits. The third integer gives the microsecond\n\ | |
587 | count.\n\ | |
588 | \n\ | |
589 | The microsecond count is zero on systems that do not provide\n\ | |
590 | resolution finer than a second.") | |
d940e0e4 JB |
591 | () |
592 | { | |
956ace37 JB |
593 | EMACS_TIME t; |
594 | Lisp_Object result[3]; | |
595 | ||
596 | EMACS_GET_TIME (t); | |
d2fd0445 KH |
597 | XSETINT (result[0], (EMACS_SECS (t) >> 16) & 0xffff); |
598 | XSETINT (result[1], (EMACS_SECS (t) >> 0) & 0xffff); | |
599 | XSETINT (result[2], EMACS_USECS (t)); | |
956ace37 JB |
600 | |
601 | return Flist (3, result); | |
d940e0e4 JB |
602 | } |
603 | \f | |
604 | ||
e3120ab5 JB |
605 | static int |
606 | lisp_time_argument (specified_time, result) | |
607 | Lisp_Object specified_time; | |
608 | time_t *result; | |
609 | { | |
610 | if (NILP (specified_time)) | |
611 | return time (result) != -1; | |
612 | else | |
613 | { | |
614 | Lisp_Object high, low; | |
615 | high = Fcar (specified_time); | |
616 | CHECK_NUMBER (high, 0); | |
617 | low = Fcdr (specified_time); | |
ae683129 | 618 | if (CONSP (low)) |
e3120ab5 JB |
619 | low = Fcar (low); |
620 | CHECK_NUMBER (low, 0); | |
621 | *result = (XINT (high) << 16) + (XINT (low) & 0xffff); | |
622 | return *result >> 16 == XINT (high); | |
623 | } | |
624 | } | |
625 | ||
a82d387c RS |
626 | DEFUN ("format-time-string", Fformat_time_string, Sformat_time_string, 2, 2, 0, |
627 | "Use FORMAT-STRING to format the time TIME.\n\ | |
628 | TIME is specified as (HIGH LOW . IGNORED) or (HIGH . LOW), as from\n\ | |
629 | `current-time' and `file-attributes'.\n\ | |
630 | FORMAT-STRING may contain %-sequences to substitute parts of the time.\n\ | |
631 | %a is replaced by the abbreviated name of the day of week.\n\ | |
632 | %A is replaced by the full name of the day of week.\n\ | |
633 | %b is replaced by the abbreviated name of the month.\n\ | |
634 | %B is replaced by the full name of the month.\n\ | |
635 | %c is a synonym for \"%x %X\".\n\ | |
636 | %C is a locale-specific synonym, which defaults to \"%A, %B %e, %Y\" in the C locale.\n\ | |
637 | %d is replaced by the day of month, zero-padded.\n\ | |
638 | %D is a synonym for \"%m/%d/%y\".\n\ | |
639 | %e is replaced by the day of month, blank-padded.\n\ | |
640 | %h is a synonym for \"%b\".\n\ | |
641 | %H is replaced by the hour (00-23).\n\ | |
642 | %I is replaced by the hour (00-12).\n\ | |
643 | %j is replaced by the day of the year (001-366).\n\ | |
644 | %k is replaced by the hour (0-23), blank padded.\n\ | |
645 | %l is replaced by the hour (1-12), blank padded.\n\ | |
646 | %m is replaced by the month (01-12).\n\ | |
647 | %M is replaced by the minut (00-59).\n\ | |
648 | %n is a synonym for \"\\n\".\n\ | |
649 | %p is replaced by AM or PM, as appropriate.\n\ | |
650 | %r is a synonym for \"%I:%M:%S %p\".\n\ | |
651 | %R is a synonym for \"%H:%M\".\n\ | |
652 | %S is replaced by the seconds (00-60).\n\ | |
653 | %t is a synonym for \"\\t\".\n\ | |
654 | %T is a synonym for \"%H:%M:%S\".\n\ | |
655 | %U is replaced by the week of the year (01-52), first day of week is Sunday.\n\ | |
656 | %w is replaced by the day of week (0-6), Sunday is day 0.\n\ | |
657 | %W is replaced by the week of the year (01-52), first day of week is Monday.\n\ | |
658 | %x is a locale-specific synonym, which defaults to \"%D\" in the C locale.\n\ | |
659 | %X is a locale-specific synonym, which defaults to \"%T\" in the C locale.\n\ | |
660 | %y is replaced by the year without century (00-99).\n\ | |
661 | %Y is replaced by the year with century.\n\ | |
662 | %Z is replaced by the time zone abbreviation.\n\ | |
663 | \n\ | |
664 | The number of options reflects the strftime(3) function.") | |
665 | (format_string, time) | |
666 | Lisp_Object format_string, time; | |
667 | { | |
668 | time_t value; | |
669 | int size; | |
670 | ||
671 | CHECK_STRING (format_string, 1); | |
672 | ||
673 | if (! lisp_time_argument (time, &value)) | |
674 | error ("Invalid time specification"); | |
675 | ||
676 | /* This is probably enough. */ | |
677 | size = XSTRING (format_string)->size * 6 + 50; | |
678 | ||
679 | while (1) | |
680 | { | |
681 | char *buf = (char *) alloca (size); | |
682 | if (strftime (buf, size, XSTRING (format_string)->data, | |
683 | localtime (&value))) | |
684 | return build_string (buf); | |
685 | /* If buffer was too small, make it bigger. */ | |
686 | size *= 2; | |
687 | } | |
688 | } | |
689 | ||
4691c06d RS |
690 | DEFUN ("decode-time", Fdecode_time, Sdecode_time, 0, 1, 0, |
691 | "Decode a time value as (SEC MINUTE HOUR DAY MONTH YEAR DOW DST ZONE).\n\ | |
692 | The optional SPECIFIED-TIME should be a list of (HIGH LOW . IGNORED)\n\ | |
693 | or (HIGH . LOW), as from `current-time' and `file-attributes', or `nil'\n\ | |
694 | to use the current time. The list has the following nine members:\n\ | |
695 | SEC is an integer between 0 and 59. MINUTE is an integer between 0 and 59.\n\ | |
696 | HOUR is an integer between 0 and 23. DAY is an integer between 1 and 31.\n\ | |
697 | MONTH is an integer between 1 and 12. YEAR is an integer indicating the\n\ | |
698 | four-digit year. DOW is the day of week, an integer between 0 and 6, where\n\ | |
699 | 0 is Sunday. DST is t if daylight savings time is effect, otherwise nil.\n\ | |
700 | ZONE is an integer indicating the number of seconds east of Greenwich.\n\ | |
701 | (Note that Common Lisp has different meanings for DOW and ZONE.)") | |
702 | (specified_time) | |
703 | Lisp_Object specified_time; | |
704 | { | |
705 | time_t time_spec; | |
706 | struct tm *decoded_time; | |
707 | Lisp_Object list_args[9]; | |
708 | ||
709 | if (! lisp_time_argument (specified_time, &time_spec)) | |
710 | error ("Invalid time specification"); | |
711 | ||
712 | decoded_time = localtime (&time_spec); | |
713 | list_args[0] = XFASTINT (decoded_time->tm_sec); | |
714 | list_args[1] = XFASTINT (decoded_time->tm_min); | |
715 | list_args[2] = XFASTINT (decoded_time->tm_hour); | |
716 | list_args[3] = XFASTINT (decoded_time->tm_mday); | |
717 | list_args[4] = XFASTINT (decoded_time->tm_mon + 1); | |
718 | list_args[5] = XFASTINT (decoded_time->tm_year + 1900); | |
719 | list_args[6] = XFASTINT (decoded_time->tm_wday); | |
720 | list_args[7] = (decoded_time->tm_isdst)? Qt : Qnil; | |
721 | list_args[8] = XFASTINT (decoded_time->tm_gmtoff); | |
722 | return Flist (9, list_args); | |
723 | } | |
724 | ||
2148f2b4 | 725 | DEFUN ("current-time-string", Fcurrent_time_string, Scurrent_time_string, 0, 1, 0, |
35692fe0 | 726 | "Return the current time, as a human-readable string.\n\ |
2148f2b4 RS |
727 | Programs can use this function to decode a time,\n\ |
728 | since the number of columns in each field is fixed.\n\ | |
729 | The format is `Sun Sep 16 01:03:52 1973'.\n\ | |
730 | If an argument is given, it specifies a time to format\n\ | |
731 | instead of the current time. The argument should have the form:\n\ | |
732 | (HIGH . LOW)\n\ | |
733 | or the form:\n\ | |
734 | (HIGH LOW . IGNORED).\n\ | |
735 | Thus, you can use times obtained from `current-time'\n\ | |
736 | and from `file-attributes'.") | |
737 | (specified_time) | |
738 | Lisp_Object specified_time; | |
739 | { | |
e3120ab5 | 740 | time_t value; |
35692fe0 | 741 | char buf[30]; |
2148f2b4 RS |
742 | register char *tem; |
743 | ||
e3120ab5 JB |
744 | if (! lisp_time_argument (specified_time, &value)) |
745 | value = -1; | |
2148f2b4 | 746 | tem = (char *) ctime (&value); |
35692fe0 JB |
747 | |
748 | strncpy (buf, tem, 24); | |
749 | buf[24] = 0; | |
750 | ||
751 | return build_string (buf); | |
752 | } | |
c2662aea | 753 | |
e3120ab5 JB |
754 | #define TM_YEAR_ORIGIN 1900 |
755 | ||
756 | /* Yield A - B, measured in seconds. */ | |
757 | static long | |
8e718b4e | 758 | difftm (a, b) |
e3120ab5 JB |
759 | struct tm *a, *b; |
760 | { | |
761 | int ay = a->tm_year + (TM_YEAR_ORIGIN - 1); | |
762 | int by = b->tm_year + (TM_YEAR_ORIGIN - 1); | |
8e718b4e | 763 | /* Some compilers can't handle this as a single return statement. */ |
68a49b18 | 764 | long days = ( |
8e718b4e KH |
765 | /* difference in day of year */ |
766 | a->tm_yday - b->tm_yday | |
767 | /* + intervening leap days */ | |
768 | + ((ay >> 2) - (by >> 2)) | |
769 | - (ay/100 - by/100) | |
770 | + ((ay/100 >> 2) - (by/100 >> 2)) | |
771 | /* + difference in years * 365 */ | |
772 | + (long)(ay-by) * 365 | |
773 | ); | |
774 | return (60*(60*(24*days + (a->tm_hour - b->tm_hour)) | |
775 | + (a->tm_min - b->tm_min)) | |
776 | + (a->tm_sec - b->tm_sec)); | |
e3120ab5 JB |
777 | } |
778 | ||
779 | DEFUN ("current-time-zone", Fcurrent_time_zone, Scurrent_time_zone, 0, 1, 0, | |
780 | "Return the offset and name for the local time zone.\n\ | |
781 | This returns a list of the form (OFFSET NAME).\n\ | |
782 | OFFSET is an integer number of seconds ahead of UTC (east of Greenwich).\n\ | |
783 | A negative value means west of Greenwich.\n\ | |
784 | NAME is a string giving the name of the time zone.\n\ | |
785 | If an argument is given, it specifies when the time zone offset is determined\n\ | |
786 | instead of using the current time. The argument should have the form:\n\ | |
787 | (HIGH . LOW)\n\ | |
788 | or the form:\n\ | |
789 | (HIGH LOW . IGNORED).\n\ | |
790 | Thus, you can use times obtained from `current-time'\n\ | |
791 | and from `file-attributes'.\n\ | |
773c1fd3 JB |
792 | \n\ |
793 | Some operating systems cannot provide all this information to Emacs;\n\ | |
2d88f747 | 794 | in this case, `current-time-zone' returns a list containing nil for\n\ |
773c1fd3 | 795 | the data it can't find.") |
e3120ab5 JB |
796 | (specified_time) |
797 | Lisp_Object specified_time; | |
c2662aea | 798 | { |
e3120ab5 JB |
799 | time_t value; |
800 | struct tm *t; | |
c2662aea | 801 | |
e3120ab5 | 802 | if (lisp_time_argument (specified_time, &value) |
2d88f747 | 803 | && (t = gmtime (&value)) != 0) |
e3120ab5 | 804 | { |
2d88f747 | 805 | struct tm gmt; |
e3120ab5 JB |
806 | long offset; |
807 | char *s, buf[6]; | |
2d88f747 RS |
808 | |
809 | gmt = *t; /* Make a copy, in case localtime modifies *t. */ | |
810 | t = localtime (&value); | |
811 | offset = difftm (t, &gmt); | |
e3120ab5 JB |
812 | s = 0; |
813 | #ifdef HAVE_TM_ZONE | |
814 | if (t->tm_zone) | |
5fd4de15 | 815 | s = (char *)t->tm_zone; |
a7971c39 RS |
816 | #else /* not HAVE_TM_ZONE */ |
817 | #ifdef HAVE_TZNAME | |
818 | if (t->tm_isdst == 0 || t->tm_isdst == 1) | |
819 | s = tzname[t->tm_isdst]; | |
c2662aea | 820 | #endif |
a7971c39 | 821 | #endif /* not HAVE_TM_ZONE */ |
e3120ab5 JB |
822 | if (!s) |
823 | { | |
824 | /* No local time zone name is available; use "+-NNNN" instead. */ | |
00fc94d0 | 825 | int am = (offset < 0 ? -offset : offset) / 60; |
e3120ab5 JB |
826 | sprintf (buf, "%c%02d%02d", (offset < 0 ? '-' : '+'), am/60, am%60); |
827 | s = buf; | |
828 | } | |
829 | return Fcons (make_number (offset), Fcons (build_string (s), Qnil)); | |
830 | } | |
831 | else | |
832 | return Fmake_list (2, Qnil); | |
c2662aea JB |
833 | } |
834 | ||
35692fe0 JB |
835 | \f |
836 | void | |
837 | insert1 (arg) | |
838 | Lisp_Object arg; | |
839 | { | |
840 | Finsert (1, &arg); | |
841 | } | |
842 | ||
52b14ac0 JB |
843 | |
844 | /* Callers passing one argument to Finsert need not gcpro the | |
845 | argument "array", since the only element of the array will | |
846 | not be used after calling insert or insert_from_string, so | |
847 | we don't care if it gets trashed. */ | |
848 | ||
35692fe0 JB |
849 | DEFUN ("insert", Finsert, Sinsert, 0, MANY, 0, |
850 | "Insert the arguments, either strings or characters, at point.\n\ | |
851 | Point moves forward so that it ends up after the inserted text.\n\ | |
852 | Any other markers at the point of insertion remain before the text.") | |
853 | (nargs, args) | |
854 | int nargs; | |
855 | register Lisp_Object *args; | |
856 | { | |
857 | register int argnum; | |
858 | register Lisp_Object tem; | |
859 | char str[1]; | |
35692fe0 JB |
860 | |
861 | for (argnum = 0; argnum < nargs; argnum++) | |
862 | { | |
863 | tem = args[argnum]; | |
864 | retry: | |
ae683129 | 865 | if (INTEGERP (tem)) |
35692fe0 JB |
866 | { |
867 | str[0] = XINT (tem); | |
868 | insert (str, 1); | |
869 | } | |
ae683129 | 870 | else if (STRINGP (tem)) |
35692fe0 | 871 | { |
be91036a RS |
872 | insert_from_string (tem, 0, XSTRING (tem)->size, 0); |
873 | } | |
874 | else | |
875 | { | |
876 | tem = wrong_type_argument (Qchar_or_string_p, tem); | |
877 | goto retry; | |
878 | } | |
879 | } | |
880 | ||
881 | return Qnil; | |
882 | } | |
883 | ||
884 | DEFUN ("insert-and-inherit", Finsert_and_inherit, Sinsert_and_inherit, | |
885 | 0, MANY, 0, | |
886 | "Insert the arguments at point, inheriting properties from adjoining text.\n\ | |
887 | Point moves forward so that it ends up after the inserted text.\n\ | |
888 | Any other markers at the point of insertion remain before the text.") | |
889 | (nargs, args) | |
890 | int nargs; | |
891 | register Lisp_Object *args; | |
892 | { | |
893 | register int argnum; | |
894 | register Lisp_Object tem; | |
895 | char str[1]; | |
896 | ||
897 | for (argnum = 0; argnum < nargs; argnum++) | |
898 | { | |
899 | tem = args[argnum]; | |
900 | retry: | |
ae683129 | 901 | if (INTEGERP (tem)) |
be91036a RS |
902 | { |
903 | str[0] = XINT (tem); | |
107740f5 | 904 | insert_and_inherit (str, 1); |
be91036a | 905 | } |
ae683129 | 906 | else if (STRINGP (tem)) |
be91036a RS |
907 | { |
908 | insert_from_string (tem, 0, XSTRING (tem)->size, 1); | |
35692fe0 JB |
909 | } |
910 | else | |
911 | { | |
912 | tem = wrong_type_argument (Qchar_or_string_p, tem); | |
913 | goto retry; | |
914 | } | |
915 | } | |
916 | ||
35692fe0 JB |
917 | return Qnil; |
918 | } | |
919 | ||
920 | DEFUN ("insert-before-markers", Finsert_before_markers, Sinsert_before_markers, 0, MANY, 0, | |
921 | "Insert strings or characters at point, relocating markers after the text.\n\ | |
922 | Point moves forward so that it ends up after the inserted text.\n\ | |
923 | Any other markers at the point of insertion also end up after the text.") | |
924 | (nargs, args) | |
925 | int nargs; | |
926 | register Lisp_Object *args; | |
927 | { | |
928 | register int argnum; | |
929 | register Lisp_Object tem; | |
930 | char str[1]; | |
35692fe0 JB |
931 | |
932 | for (argnum = 0; argnum < nargs; argnum++) | |
933 | { | |
934 | tem = args[argnum]; | |
935 | retry: | |
ae683129 | 936 | if (INTEGERP (tem)) |
35692fe0 JB |
937 | { |
938 | str[0] = XINT (tem); | |
939 | insert_before_markers (str, 1); | |
940 | } | |
ae683129 | 941 | else if (STRINGP (tem)) |
35692fe0 | 942 | { |
be91036a RS |
943 | insert_from_string_before_markers (tem, 0, XSTRING (tem)->size, 0); |
944 | } | |
945 | else | |
946 | { | |
947 | tem = wrong_type_argument (Qchar_or_string_p, tem); | |
948 | goto retry; | |
949 | } | |
950 | } | |
951 | ||
952 | return Qnil; | |
953 | } | |
954 | ||
955 | DEFUN ("insert-before-markers-and-inherit", | |
956 | Finsert_and_inherit_before_markers, Sinsert_and_inherit_before_markers, | |
957 | 0, MANY, 0, | |
958 | "Insert text at point, relocating markers and inheriting properties.\n\ | |
959 | Point moves forward so that it ends up after the inserted text.\n\ | |
960 | Any other markers at the point of insertion also end up after the text.") | |
961 | (nargs, args) | |
962 | int nargs; | |
963 | register Lisp_Object *args; | |
964 | { | |
965 | register int argnum; | |
966 | register Lisp_Object tem; | |
967 | char str[1]; | |
968 | ||
969 | for (argnum = 0; argnum < nargs; argnum++) | |
970 | { | |
971 | tem = args[argnum]; | |
972 | retry: | |
ae683129 | 973 | if (INTEGERP (tem)) |
be91036a RS |
974 | { |
975 | str[0] = XINT (tem); | |
107740f5 | 976 | insert_before_markers_and_inherit (str, 1); |
be91036a | 977 | } |
ae683129 | 978 | else if (STRINGP (tem)) |
be91036a RS |
979 | { |
980 | insert_from_string_before_markers (tem, 0, XSTRING (tem)->size, 1); | |
35692fe0 JB |
981 | } |
982 | else | |
983 | { | |
984 | tem = wrong_type_argument (Qchar_or_string_p, tem); | |
985 | goto retry; | |
986 | } | |
987 | } | |
988 | ||
35692fe0 JB |
989 | return Qnil; |
990 | } | |
991 | \f | |
e2eeabbb | 992 | DEFUN ("insert-char", Finsert_char, Sinsert_char, 2, 3, 0, |
35692fe0 JB |
993 | "Insert COUNT (second arg) copies of CHAR (first arg).\n\ |
994 | Point and all markers are affected as in the function `insert'.\n\ | |
e2eeabbb RS |
995 | Both arguments are required.\n\ |
996 | The optional third arg INHERIT, if non-nil, says to inherit text properties\n\ | |
997 | from adjoining text, if those properties are sticky.") | |
998 | (chr, count, inherit) | |
999 | Lisp_Object chr, count, inherit; | |
35692fe0 JB |
1000 | { |
1001 | register unsigned char *string; | |
1002 | register int strlen; | |
1003 | register int i, n; | |
1004 | ||
1005 | CHECK_NUMBER (chr, 0); | |
1006 | CHECK_NUMBER (count, 1); | |
1007 | ||
1008 | n = XINT (count); | |
1009 | if (n <= 0) | |
1010 | return Qnil; | |
1011 | strlen = min (n, 256); | |
1012 | string = (unsigned char *) alloca (strlen); | |
1013 | for (i = 0; i < strlen; i++) | |
1014 | string[i] = XFASTINT (chr); | |
1015 | while (n >= strlen) | |
1016 | { | |
e2eeabbb RS |
1017 | if (!NILP (inherit)) |
1018 | insert_and_inherit (string, strlen); | |
1019 | else | |
1020 | insert (string, strlen); | |
35692fe0 JB |
1021 | n -= strlen; |
1022 | } | |
1023 | if (n > 0) | |
1024 | insert (string, n); | |
1025 | return Qnil; | |
1026 | } | |
1027 | ||
1028 | \f | |
ffd56f97 JB |
1029 | /* Making strings from buffer contents. */ |
1030 | ||
1031 | /* Return a Lisp_String containing the text of the current buffer from | |
74d6d8c5 | 1032 | START to END. If text properties are in use and the current buffer |
eb8c3be9 | 1033 | has properties in the range specified, the resulting string will also |
74d6d8c5 | 1034 | have them. |
ffd56f97 JB |
1035 | |
1036 | We don't want to use plain old make_string here, because it calls | |
1037 | make_uninit_string, which can cause the buffer arena to be | |
1038 | compacted. make_string has no way of knowing that the data has | |
1039 | been moved, and thus copies the wrong data into the string. This | |
1040 | doesn't effect most of the other users of make_string, so it should | |
1041 | be left as is. But we should use this function when conjuring | |
1042 | buffer substrings. */ | |
74d6d8c5 | 1043 | |
ffd56f97 JB |
1044 | Lisp_Object |
1045 | make_buffer_string (start, end) | |
1046 | int start, end; | |
1047 | { | |
36b0d50e | 1048 | Lisp_Object result, tem, tem1; |
ffd56f97 JB |
1049 | |
1050 | if (start < GPT && GPT < end) | |
1051 | move_gap (start); | |
1052 | ||
1053 | result = make_uninit_string (end - start); | |
1054 | bcopy (&FETCH_CHAR (start), XSTRING (result)->data, end - start); | |
1055 | ||
60b96ee7 | 1056 | tem = Fnext_property_change (make_number (start), Qnil, make_number (end)); |
36b0d50e | 1057 | tem1 = Ftext_properties_at (make_number (start), Qnil); |
60b96ee7 RS |
1058 | |
1059 | #ifdef USE_TEXT_PROPERTIES | |
36b0d50e | 1060 | if (XINT (tem) != end || !NILP (tem1)) |
60b96ee7 RS |
1061 | copy_intervals_to_string (result, current_buffer, start, end - start); |
1062 | #endif | |
74d6d8c5 | 1063 | |
ffd56f97 JB |
1064 | return result; |
1065 | } | |
35692fe0 JB |
1066 | |
1067 | DEFUN ("buffer-substring", Fbuffer_substring, Sbuffer_substring, 2, 2, 0, | |
1068 | "Return the contents of part of the current buffer as a string.\n\ | |
1069 | The two arguments START and END are character positions;\n\ | |
1070 | they can be in either order.") | |
1071 | (b, e) | |
1072 | Lisp_Object b, e; | |
1073 | { | |
1074 | register int beg, end; | |
35692fe0 JB |
1075 | |
1076 | validate_region (&b, &e); | |
1077 | beg = XINT (b); | |
1078 | end = XINT (e); | |
1079 | ||
ffd56f97 | 1080 | return make_buffer_string (beg, end); |
35692fe0 JB |
1081 | } |
1082 | ||
1083 | DEFUN ("buffer-string", Fbuffer_string, Sbuffer_string, 0, 0, 0, | |
1084 | "Return the contents of the current buffer as a string.") | |
1085 | () | |
1086 | { | |
ffd56f97 | 1087 | return make_buffer_string (BEGV, ZV); |
35692fe0 JB |
1088 | } |
1089 | ||
1090 | DEFUN ("insert-buffer-substring", Finsert_buffer_substring, Sinsert_buffer_substring, | |
1091 | 1, 3, 0, | |
83ea6fc2 | 1092 | "Insert before point a substring of the contents of buffer BUFFER.\n\ |
35692fe0 JB |
1093 | BUFFER may be a buffer or a buffer name.\n\ |
1094 | Arguments START and END are character numbers specifying the substring.\n\ | |
1095 | They default to the beginning and the end of BUFFER.") | |
1096 | (buf, b, e) | |
1097 | Lisp_Object buf, b, e; | |
1098 | { | |
b1b0ee5a | 1099 | register int beg, end, temp; |
35692fe0 | 1100 | register struct buffer *bp; |
3fff2dfa | 1101 | Lisp_Object buffer; |
35692fe0 | 1102 | |
3fff2dfa RS |
1103 | buffer = Fget_buffer (buf); |
1104 | if (NILP (buffer)) | |
1105 | nsberror (buf); | |
1106 | bp = XBUFFER (buffer); | |
35692fe0 | 1107 | |
56a98455 | 1108 | if (NILP (b)) |
35692fe0 JB |
1109 | beg = BUF_BEGV (bp); |
1110 | else | |
1111 | { | |
1112 | CHECK_NUMBER_COERCE_MARKER (b, 0); | |
1113 | beg = XINT (b); | |
1114 | } | |
56a98455 | 1115 | if (NILP (e)) |
35692fe0 JB |
1116 | end = BUF_ZV (bp); |
1117 | else | |
1118 | { | |
1119 | CHECK_NUMBER_COERCE_MARKER (e, 1); | |
1120 | end = XINT (e); | |
1121 | } | |
1122 | ||
1123 | if (beg > end) | |
74d6d8c5 | 1124 | temp = beg, beg = end, end = temp; |
35692fe0 | 1125 | |
b1b0ee5a | 1126 | if (!(BUF_BEGV (bp) <= beg && end <= BUF_ZV (bp))) |
35692fe0 JB |
1127 | args_out_of_range (b, e); |
1128 | ||
b1b0ee5a | 1129 | insert_from_buffer (bp, beg, end - beg, 0); |
35692fe0 JB |
1130 | return Qnil; |
1131 | } | |
e9cf2084 RS |
1132 | |
1133 | DEFUN ("compare-buffer-substrings", Fcompare_buffer_substrings, Scompare_buffer_substrings, | |
1134 | 6, 6, 0, | |
1135 | "Compare two substrings of two buffers; return result as number.\n\ | |
1136 | the value is -N if first string is less after N-1 chars,\n\ | |
1137 | +N if first string is greater after N-1 chars, or 0 if strings match.\n\ | |
1138 | Each substring is represented as three arguments: BUFFER, START and END.\n\ | |
1139 | That makes six args in all, three for each substring.\n\n\ | |
1140 | The value of `case-fold-search' in the current buffer\n\ | |
1141 | determines whether case is significant or ignored.") | |
1142 | (buffer1, start1, end1, buffer2, start2, end2) | |
1143 | Lisp_Object buffer1, start1, end1, buffer2, start2, end2; | |
1144 | { | |
1145 | register int begp1, endp1, begp2, endp2, temp, len1, len2, length, i; | |
1146 | register struct buffer *bp1, *bp2; | |
1147 | register unsigned char *trt | |
1148 | = (!NILP (current_buffer->case_fold_search) | |
1149 | ? XSTRING (current_buffer->case_canon_table)->data : 0); | |
1150 | ||
1151 | /* Find the first buffer and its substring. */ | |
1152 | ||
1153 | if (NILP (buffer1)) | |
1154 | bp1 = current_buffer; | |
1155 | else | |
1156 | { | |
3fff2dfa RS |
1157 | Lisp_Object buf1; |
1158 | buf1 = Fget_buffer (buffer1); | |
1159 | if (NILP (buf1)) | |
1160 | nsberror (buffer1); | |
1161 | bp1 = XBUFFER (buf1); | |
e9cf2084 RS |
1162 | } |
1163 | ||
1164 | if (NILP (start1)) | |
1165 | begp1 = BUF_BEGV (bp1); | |
1166 | else | |
1167 | { | |
1168 | CHECK_NUMBER_COERCE_MARKER (start1, 1); | |
1169 | begp1 = XINT (start1); | |
1170 | } | |
1171 | if (NILP (end1)) | |
1172 | endp1 = BUF_ZV (bp1); | |
1173 | else | |
1174 | { | |
1175 | CHECK_NUMBER_COERCE_MARKER (end1, 2); | |
1176 | endp1 = XINT (end1); | |
1177 | } | |
1178 | ||
1179 | if (begp1 > endp1) | |
1180 | temp = begp1, begp1 = endp1, endp1 = temp; | |
1181 | ||
1182 | if (!(BUF_BEGV (bp1) <= begp1 | |
1183 | && begp1 <= endp1 | |
1184 | && endp1 <= BUF_ZV (bp1))) | |
1185 | args_out_of_range (start1, end1); | |
1186 | ||
1187 | /* Likewise for second substring. */ | |
1188 | ||
1189 | if (NILP (buffer2)) | |
1190 | bp2 = current_buffer; | |
1191 | else | |
1192 | { | |
3fff2dfa RS |
1193 | Lisp_Object buf2; |
1194 | buf2 = Fget_buffer (buffer2); | |
1195 | if (NILP (buf2)) | |
1196 | nsberror (buffer2); | |
e9cf2084 RS |
1197 | bp2 = XBUFFER (buffer2); |
1198 | } | |
1199 | ||
1200 | if (NILP (start2)) | |
1201 | begp2 = BUF_BEGV (bp2); | |
1202 | else | |
1203 | { | |
1204 | CHECK_NUMBER_COERCE_MARKER (start2, 4); | |
1205 | begp2 = XINT (start2); | |
1206 | } | |
1207 | if (NILP (end2)) | |
1208 | endp2 = BUF_ZV (bp2); | |
1209 | else | |
1210 | { | |
1211 | CHECK_NUMBER_COERCE_MARKER (end2, 5); | |
1212 | endp2 = XINT (end2); | |
1213 | } | |
1214 | ||
1215 | if (begp2 > endp2) | |
1216 | temp = begp2, begp2 = endp2, endp2 = temp; | |
1217 | ||
1218 | if (!(BUF_BEGV (bp2) <= begp2 | |
1219 | && begp2 <= endp2 | |
1220 | && endp2 <= BUF_ZV (bp2))) | |
1221 | args_out_of_range (start2, end2); | |
1222 | ||
1223 | len1 = endp1 - begp1; | |
1224 | len2 = endp2 - begp2; | |
1225 | length = len1; | |
1226 | if (len2 < length) | |
1227 | length = len2; | |
1228 | ||
1229 | for (i = 0; i < length; i++) | |
1230 | { | |
1231 | int c1 = *BUF_CHAR_ADDRESS (bp1, begp1 + i); | |
1232 | int c2 = *BUF_CHAR_ADDRESS (bp2, begp2 + i); | |
1233 | if (trt) | |
1234 | { | |
1235 | c1 = trt[c1]; | |
1236 | c2 = trt[c2]; | |
1237 | } | |
1238 | if (c1 < c2) | |
1239 | return make_number (- 1 - i); | |
1240 | if (c1 > c2) | |
1241 | return make_number (i + 1); | |
1242 | } | |
1243 | ||
1244 | /* The strings match as far as they go. | |
1245 | If one is shorter, that one is less. */ | |
1246 | if (length < len1) | |
1247 | return make_number (length + 1); | |
1248 | else if (length < len2) | |
1249 | return make_number (- length - 1); | |
1250 | ||
1251 | /* Same length too => they are equal. */ | |
1252 | return make_number (0); | |
1253 | } | |
35692fe0 JB |
1254 | \f |
1255 | DEFUN ("subst-char-in-region", Fsubst_char_in_region, | |
1256 | Ssubst_char_in_region, 4, 5, 0, | |
1257 | "From START to END, replace FROMCHAR with TOCHAR each time it occurs.\n\ | |
1258 | If optional arg NOUNDO is non-nil, don't record this change for undo\n\ | |
1259 | and don't mark the buffer as really changed.") | |
1260 | (start, end, fromchar, tochar, noundo) | |
1261 | Lisp_Object start, end, fromchar, tochar, noundo; | |
1262 | { | |
1263 | register int pos, stop, look; | |
60b96ee7 | 1264 | int changed = 0; |
35692fe0 JB |
1265 | |
1266 | validate_region (&start, &end); | |
1267 | CHECK_NUMBER (fromchar, 2); | |
1268 | CHECK_NUMBER (tochar, 3); | |
1269 | ||
1270 | pos = XINT (start); | |
1271 | stop = XINT (end); | |
1272 | look = XINT (fromchar); | |
1273 | ||
35692fe0 JB |
1274 | while (pos < stop) |
1275 | { | |
1276 | if (FETCH_CHAR (pos) == look) | |
1277 | { | |
60b96ee7 RS |
1278 | if (! changed) |
1279 | { | |
1280 | modify_region (current_buffer, XINT (start), stop); | |
7653d030 RS |
1281 | |
1282 | if (! NILP (noundo)) | |
1283 | { | |
1284 | if (MODIFF - 1 == current_buffer->save_modified) | |
1285 | current_buffer->save_modified++; | |
1286 | if (MODIFF - 1 == current_buffer->auto_save_modified) | |
1287 | current_buffer->auto_save_modified++; | |
1288 | } | |
1289 | ||
1290 | changed = 1; | |
60b96ee7 RS |
1291 | } |
1292 | ||
56a98455 | 1293 | if (NILP (noundo)) |
35692fe0 JB |
1294 | record_change (pos, 1); |
1295 | FETCH_CHAR (pos) = XINT (tochar); | |
35692fe0 JB |
1296 | } |
1297 | pos++; | |
1298 | } | |
1299 | ||
60b96ee7 RS |
1300 | if (changed) |
1301 | signal_after_change (XINT (start), | |
1302 | stop - XINT (start), stop - XINT (start)); | |
1303 | ||
35692fe0 JB |
1304 | return Qnil; |
1305 | } | |
1306 | ||
1307 | DEFUN ("translate-region", Ftranslate_region, Stranslate_region, 3, 3, 0, | |
1308 | "From START to END, translate characters according to TABLE.\n\ | |
1309 | TABLE is a string; the Nth character in it is the mapping\n\ | |
1310 | for the character with code N. Returns the number of characters changed.") | |
1311 | (start, end, table) | |
1312 | Lisp_Object start; | |
1313 | Lisp_Object end; | |
1314 | register Lisp_Object table; | |
1315 | { | |
1316 | register int pos, stop; /* Limits of the region. */ | |
1317 | register unsigned char *tt; /* Trans table. */ | |
1318 | register int oc; /* Old character. */ | |
1319 | register int nc; /* New character. */ | |
1320 | int cnt; /* Number of changes made. */ | |
1321 | Lisp_Object z; /* Return. */ | |
1322 | int size; /* Size of translate table. */ | |
1323 | ||
1324 | validate_region (&start, &end); | |
1325 | CHECK_STRING (table, 2); | |
1326 | ||
1327 | size = XSTRING (table)->size; | |
1328 | tt = XSTRING (table)->data; | |
1329 | ||
1330 | pos = XINT (start); | |
1331 | stop = XINT (end); | |
04a759c8 | 1332 | modify_region (current_buffer, pos, stop); |
35692fe0 JB |
1333 | |
1334 | cnt = 0; | |
1335 | for (; pos < stop; ++pos) | |
1336 | { | |
1337 | oc = FETCH_CHAR (pos); | |
1338 | if (oc < size) | |
1339 | { | |
1340 | nc = tt[oc]; | |
1341 | if (nc != oc) | |
1342 | { | |
1343 | record_change (pos, 1); | |
1344 | FETCH_CHAR (pos) = nc; | |
1345 | signal_after_change (pos, 1, 1); | |
1346 | ++cnt; | |
1347 | } | |
1348 | } | |
1349 | } | |
1350 | ||
55561c63 | 1351 | XSETFASTINT (z, cnt); |
35692fe0 JB |
1352 | return (z); |
1353 | } | |
1354 | ||
1355 | DEFUN ("delete-region", Fdelete_region, Sdelete_region, 2, 2, "r", | |
1356 | "Delete the text between point and mark.\n\ | |
1357 | When called from a program, expects two arguments,\n\ | |
1358 | positions (integers or markers) specifying the stretch to be deleted.") | |
1359 | (b, e) | |
1360 | Lisp_Object b, e; | |
1361 | { | |
1362 | validate_region (&b, &e); | |
1363 | del_range (XINT (b), XINT (e)); | |
1364 | return Qnil; | |
1365 | } | |
1366 | \f | |
1367 | DEFUN ("widen", Fwiden, Swiden, 0, 0, "", | |
1368 | "Remove restrictions (narrowing) from current buffer.\n\ | |
1369 | This allows the buffer's full text to be seen and edited.") | |
1370 | () | |
1371 | { | |
1372 | BEGV = BEG; | |
1373 | SET_BUF_ZV (current_buffer, Z); | |
1374 | clip_changed = 1; | |
52b14ac0 JB |
1375 | /* Changing the buffer bounds invalidates any recorded current column. */ |
1376 | invalidate_current_column (); | |
35692fe0 JB |
1377 | return Qnil; |
1378 | } | |
1379 | ||
1380 | DEFUN ("narrow-to-region", Fnarrow_to_region, Snarrow_to_region, 2, 2, "r", | |
1381 | "Restrict editing in this buffer to the current region.\n\ | |
1382 | The rest of the text becomes temporarily invisible and untouchable\n\ | |
1383 | but is not deleted; if you save the buffer in a file, the invisible\n\ | |
1384 | text is included in the file. \\[widen] makes all visible again.\n\ | |
1385 | See also `save-restriction'.\n\ | |
1386 | \n\ | |
1387 | When calling from a program, pass two arguments; positions (integers\n\ | |
1388 | or markers) bounding the text that should remain visible.") | |
1389 | (b, e) | |
1390 | register Lisp_Object b, e; | |
1391 | { | |
679e18b1 | 1392 | register EMACS_INT i; |
35692fe0 JB |
1393 | |
1394 | CHECK_NUMBER_COERCE_MARKER (b, 0); | |
1395 | CHECK_NUMBER_COERCE_MARKER (e, 1); | |
1396 | ||
1397 | if (XINT (b) > XINT (e)) | |
1398 | { | |
1399 | i = XFASTINT (b); | |
1400 | b = e; | |
55561c63 | 1401 | XSETFASTINT (e, i); |
35692fe0 JB |
1402 | } |
1403 | ||
1404 | if (!(BEG <= XINT (b) && XINT (b) <= XINT (e) && XINT (e) <= Z)) | |
1405 | args_out_of_range (b, e); | |
1406 | ||
1407 | BEGV = XFASTINT (b); | |
1408 | SET_BUF_ZV (current_buffer, XFASTINT (e)); | |
1409 | if (point < XFASTINT (b)) | |
1410 | SET_PT (XFASTINT (b)); | |
1411 | if (point > XFASTINT (e)) | |
1412 | SET_PT (XFASTINT (e)); | |
1413 | clip_changed = 1; | |
52b14ac0 JB |
1414 | /* Changing the buffer bounds invalidates any recorded current column. */ |
1415 | invalidate_current_column (); | |
35692fe0 JB |
1416 | return Qnil; |
1417 | } | |
1418 | ||
1419 | Lisp_Object | |
1420 | save_restriction_save () | |
1421 | { | |
1422 | register Lisp_Object bottom, top; | |
1423 | /* Note: I tried using markers here, but it does not win | |
1424 | because insertion at the end of the saved region | |
1425 | does not advance mh and is considered "outside" the saved region. */ | |
55561c63 KH |
1426 | XSETFASTINT (bottom, BEGV - BEG); |
1427 | XSETFASTINT (top, Z - ZV); | |
35692fe0 JB |
1428 | |
1429 | return Fcons (Fcurrent_buffer (), Fcons (bottom, top)); | |
1430 | } | |
1431 | ||
1432 | Lisp_Object | |
1433 | save_restriction_restore (data) | |
1434 | Lisp_Object data; | |
1435 | { | |
1436 | register struct buffer *buf; | |
1437 | register int newhead, newtail; | |
1438 | register Lisp_Object tem; | |
1439 | ||
1440 | buf = XBUFFER (XCONS (data)->car); | |
1441 | ||
1442 | data = XCONS (data)->cdr; | |
1443 | ||
1444 | tem = XCONS (data)->car; | |
1445 | newhead = XINT (tem); | |
1446 | tem = XCONS (data)->cdr; | |
1447 | newtail = XINT (tem); | |
1448 | if (newhead + newtail > BUF_Z (buf) - BUF_BEG (buf)) | |
1449 | { | |
1450 | newhead = 0; | |
1451 | newtail = 0; | |
1452 | } | |
1453 | BUF_BEGV (buf) = BUF_BEG (buf) + newhead; | |
1454 | SET_BUF_ZV (buf, BUF_Z (buf) - newtail); | |
1455 | clip_changed = 1; | |
1456 | ||
1457 | /* If point is outside the new visible range, move it inside. */ | |
1458 | SET_BUF_PT (buf, | |
1459 | clip_to_bounds (BUF_BEGV (buf), BUF_PT (buf), BUF_ZV (buf))); | |
1460 | ||
1461 | return Qnil; | |
1462 | } | |
1463 | ||
1464 | DEFUN ("save-restriction", Fsave_restriction, Ssave_restriction, 0, UNEVALLED, 0, | |
1465 | "Execute BODY, saving and restoring current buffer's restrictions.\n\ | |
1466 | The buffer's restrictions make parts of the beginning and end invisible.\n\ | |
1467 | \(They are set up with `narrow-to-region' and eliminated with `widen'.)\n\ | |
1468 | This special form, `save-restriction', saves the current buffer's restrictions\n\ | |
1469 | when it is entered, and restores them when it is exited.\n\ | |
1470 | So any `narrow-to-region' within BODY lasts only until the end of the form.\n\ | |
1471 | The old restrictions settings are restored\n\ | |
1472 | even in case of abnormal exit (throw or error).\n\ | |
1473 | \n\ | |
1474 | The value returned is the value of the last form in BODY.\n\ | |
1475 | \n\ | |
1476 | `save-restriction' can get confused if, within the BODY, you widen\n\ | |
1477 | and then make changes outside the area within the saved restrictions.\n\ | |
1478 | \n\ | |
1479 | Note: if you are using both `save-excursion' and `save-restriction',\n\ | |
1480 | use `save-excursion' outermost:\n\ | |
1481 | (save-excursion (save-restriction ...))") | |
1482 | (body) | |
1483 | Lisp_Object body; | |
1484 | { | |
1485 | register Lisp_Object val; | |
1486 | int count = specpdl_ptr - specpdl; | |
1487 | ||
1488 | record_unwind_protect (save_restriction_restore, save_restriction_save ()); | |
1489 | val = Fprogn (body); | |
1490 | return unbind_to (count, val); | |
1491 | } | |
1492 | \f | |
671fbc4d KH |
1493 | /* Buffer for the most recent text displayed by Fmessage. */ |
1494 | static char *message_text; | |
1495 | ||
1496 | /* Allocated length of that buffer. */ | |
1497 | static int message_length; | |
1498 | ||
35692fe0 JB |
1499 | DEFUN ("message", Fmessage, Smessage, 1, MANY, 0, |
1500 | "Print a one-line message at the bottom of the screen.\n\ | |
1501 | The first argument is a control string.\n\ | |
1502 | It may contain %s or %d or %c to print successive following arguments.\n\ | |
1503 | %s means print an argument as a string, %d means print as number in decimal,\n\ | |
1504 | %c means print a number as a single character.\n\ | |
1505 | The argument used by %s must be a string or a symbol;\n\ | |
ccdac5be JB |
1506 | the argument used by %d or %c must be a number.\n\ |
1507 | If the first argument is nil, clear any existing message; let the\n\ | |
1508 | minibuffer contents show.") | |
35692fe0 JB |
1509 | (nargs, args) |
1510 | int nargs; | |
1511 | Lisp_Object *args; | |
1512 | { | |
ccdac5be | 1513 | if (NILP (args[0])) |
f0250249 JB |
1514 | { |
1515 | message (0); | |
1516 | return Qnil; | |
1517 | } | |
ccdac5be JB |
1518 | else |
1519 | { | |
1520 | register Lisp_Object val; | |
1521 | val = Fformat (nargs, args); | |
671fbc4d KH |
1522 | /* Copy the data so that it won't move when we GC. */ |
1523 | if (! message_text) | |
1524 | { | |
1525 | message_text = (char *)xmalloc (80); | |
1526 | message_length = 80; | |
1527 | } | |
1528 | if (XSTRING (val)->size > message_length) | |
1529 | { | |
1530 | message_length = XSTRING (val)->size; | |
1531 | message_text = (char *)xrealloc (message_text, message_length); | |
1532 | } | |
1533 | bcopy (XSTRING (val)->data, message_text, XSTRING (val)->size); | |
1534 | message2 (message_text, XSTRING (val)->size); | |
ccdac5be JB |
1535 | return val; |
1536 | } | |
35692fe0 JB |
1537 | } |
1538 | ||
cacc3e2c RS |
1539 | DEFUN ("message-box", Fmessage_box, Smessage_box, 1, MANY, 0, |
1540 | "Display a message, in a dialog box if possible.\n\ | |
1541 | If a dialog box is not available, use the echo area.\n\ | |
1542 | The first argument is a control string.\n\ | |
1543 | It may contain %s or %d or %c to print successive following arguments.\n\ | |
1544 | %s means print an argument as a string, %d means print as number in decimal,\n\ | |
1545 | %c means print a number as a single character.\n\ | |
1546 | The argument used by %s must be a string or a symbol;\n\ | |
1547 | the argument used by %d or %c must be a number.\n\ | |
1548 | If the first argument is nil, clear any existing message; let the\n\ | |
1549 | minibuffer contents show.") | |
1550 | (nargs, args) | |
1551 | int nargs; | |
1552 | Lisp_Object *args; | |
1553 | { | |
1554 | if (NILP (args[0])) | |
1555 | { | |
1556 | message (0); | |
1557 | return Qnil; | |
1558 | } | |
1559 | else | |
1560 | { | |
1561 | register Lisp_Object val; | |
1562 | val = Fformat (nargs, args); | |
1563 | #ifdef HAVE_X_MENU | |
1564 | { | |
1565 | Lisp_Object pane, menu, obj; | |
1566 | struct gcpro gcpro1; | |
1567 | pane = Fcons (Fcons (build_string ("OK"), Qt), Qnil); | |
1568 | GCPRO1 (pane); | |
1569 | menu = Fcons (val, pane); | |
1570 | obj = Fx_popup_dialog (Qt, menu); | |
1571 | UNGCPRO; | |
1572 | return val; | |
1573 | } | |
1574 | #else | |
1575 | /* Copy the data so that it won't move when we GC. */ | |
1576 | if (! message_text) | |
1577 | { | |
1578 | message_text = (char *)xmalloc (80); | |
1579 | message_length = 80; | |
1580 | } | |
1581 | if (XSTRING (val)->size > message_length) | |
1582 | { | |
1583 | message_length = XSTRING (val)->size; | |
1584 | message_text = (char *)xrealloc (message_text, message_length); | |
1585 | } | |
1586 | bcopy (XSTRING (val)->data, message_text, XSTRING (val)->size); | |
1587 | message2 (message_text, XSTRING (val)->size); | |
1588 | return val; | |
1589 | #endif | |
1590 | } | |
1591 | } | |
1592 | #ifdef HAVE_X_MENU | |
1593 | extern Lisp_Object last_nonmenu_event; | |
1594 | #endif | |
1595 | DEFUN ("message-or-box", Fmessage_or_box, Smessage_or_box, 1, MANY, 0, | |
1596 | "Display a message in a dialog box or in the echo area.\n\ | |
1597 | If this command was invoked with the mouse, use a dialog box.\n\ | |
1598 | Otherwise, use the echo area.\n\ | |
1599 | \n\ | |
1600 | The first argument is a control string.\n\ | |
1601 | It may contain %s or %d or %c to print successive following arguments.\n\ | |
1602 | %s means print an argument as a string, %d means print as number in decimal,\n\ | |
1603 | %c means print a number as a single character.\n\ | |
1604 | The argument used by %s must be a string or a symbol;\n\ | |
1605 | the argument used by %d or %c must be a number.\n\ | |
1606 | If the first argument is nil, clear any existing message; let the\n\ | |
1607 | minibuffer contents show.") | |
1608 | (nargs, args) | |
1609 | int nargs; | |
1610 | Lisp_Object *args; | |
1611 | { | |
1612 | #ifdef HAVE_X_MENU | |
1613 | if (NILP (last_nonmenu_event) || CONSP (last_nonmenu_event)) | |
0a56ee6b | 1614 | return Fmessage_box (nargs, args); |
cacc3e2c RS |
1615 | #endif |
1616 | return Fmessage (nargs, args); | |
1617 | } | |
1618 | ||
35692fe0 JB |
1619 | DEFUN ("format", Fformat, Sformat, 1, MANY, 0, |
1620 | "Format a string out of a control-string and arguments.\n\ | |
1621 | The first argument is a control string.\n\ | |
1622 | The other arguments are substituted into it to make the result, a string.\n\ | |
1623 | It may contain %-sequences meaning to substitute the next argument.\n\ | |
1624 | %s means print a string argument. Actually, prints any object, with `princ'.\n\ | |
1625 | %d means print as number in decimal (%o octal, %x hex).\n\ | |
1626 | %c means print a number as a single character.\n\ | |
1627 | %S means print any object as an s-expression (using prin1).\n\ | |
52b14ac0 JB |
1628 | The argument used for %d, %o, %x or %c must be a number.\n\ |
1629 | Use %% to put a single % into the output.") | |
35692fe0 JB |
1630 | (nargs, args) |
1631 | int nargs; | |
1632 | register Lisp_Object *args; | |
1633 | { | |
1634 | register int n; /* The number of the next arg to substitute */ | |
1635 | register int total = 5; /* An estimate of the final length */ | |
1636 | char *buf; | |
1637 | register unsigned char *format, *end; | |
1638 | int length; | |
1639 | extern char *index (); | |
1640 | /* It should not be necessary to GCPRO ARGS, because | |
1641 | the caller in the interpreter should take care of that. */ | |
1642 | ||
1643 | CHECK_STRING (args[0], 0); | |
1644 | format = XSTRING (args[0])->data; | |
1645 | end = format + XSTRING (args[0])->size; | |
1646 | ||
1647 | n = 0; | |
1648 | while (format != end) | |
1649 | if (*format++ == '%') | |
1650 | { | |
1651 | int minlen; | |
1652 | ||
1653 | /* Process a numeric arg and skip it. */ | |
1654 | minlen = atoi (format); | |
1655 | if (minlen > 0) | |
1656 | total += minlen; | |
1657 | else | |
1658 | total -= minlen; | |
1659 | while ((*format >= '0' && *format <= '9') | |
1660 | || *format == '-' || *format == ' ' || *format == '.') | |
1661 | format++; | |
1662 | ||
1663 | if (*format == '%') | |
1664 | format++; | |
1665 | else if (++n >= nargs) | |
60764552 | 1666 | error ("not enough arguments for format string"); |
35692fe0 JB |
1667 | else if (*format == 'S') |
1668 | { | |
1669 | /* For `S', prin1 the argument and then treat like a string. */ | |
1670 | register Lisp_Object tem; | |
1671 | tem = Fprin1_to_string (args[n], Qnil); | |
1672 | args[n] = tem; | |
1673 | goto string; | |
1674 | } | |
ae683129 | 1675 | else if (SYMBOLP (args[n])) |
35692fe0 | 1676 | { |
d2fd0445 | 1677 | XSETSTRING (args[n], XSYMBOL (args[n])->name); |
35692fe0 JB |
1678 | goto string; |
1679 | } | |
ae683129 | 1680 | else if (STRINGP (args[n])) |
35692fe0 JB |
1681 | { |
1682 | string: | |
b22e7ecc KH |
1683 | if (*format != 's' && *format != 'S') |
1684 | error ("format specifier doesn't match argument type"); | |
35692fe0 JB |
1685 | total += XSTRING (args[n])->size; |
1686 | } | |
1687 | /* Would get MPV otherwise, since Lisp_Int's `point' to low memory. */ | |
ae683129 | 1688 | else if (INTEGERP (args[n]) && *format != 's') |
35692fe0 | 1689 | { |
4746118a | 1690 | #ifdef LISP_FLOAT_TYPE |
eb8c3be9 | 1691 | /* The following loop assumes the Lisp type indicates |
35692fe0 JB |
1692 | the proper way to pass the argument. |
1693 | So make sure we have a flonum if the argument should | |
1694 | be a double. */ | |
1695 | if (*format == 'e' || *format == 'f' || *format == 'g') | |
1696 | args[n] = Ffloat (args[n]); | |
4746118a | 1697 | #endif |
35692fe0 JB |
1698 | total += 10; |
1699 | } | |
4746118a | 1700 | #ifdef LISP_FLOAT_TYPE |
ae683129 | 1701 | else if (FLOATP (args[n]) && *format != 's') |
35692fe0 JB |
1702 | { |
1703 | if (! (*format == 'e' || *format == 'f' || *format == 'g')) | |
1704 | args[n] = Ftruncate (args[n]); | |
1705 | total += 20; | |
1706 | } | |
4746118a | 1707 | #endif |
35692fe0 JB |
1708 | else |
1709 | { | |
1710 | /* Anything but a string, convert to a string using princ. */ | |
1711 | register Lisp_Object tem; | |
1712 | tem = Fprin1_to_string (args[n], Qt); | |
1713 | args[n] = tem; | |
1714 | goto string; | |
1715 | } | |
1716 | } | |
1717 | ||
1718 | { | |
1719 | register int nstrings = n + 1; | |
50aa2f90 JB |
1720 | |
1721 | /* Allocate twice as many strings as we have %-escapes; floats occupy | |
1722 | two slots, and we're not sure how many of those we have. */ | |
35692fe0 | 1723 | register unsigned char **strings |
50aa2f90 JB |
1724 | = (unsigned char **) alloca (2 * nstrings * sizeof (unsigned char *)); |
1725 | int i; | |
35692fe0 | 1726 | |
50aa2f90 | 1727 | i = 0; |
35692fe0 JB |
1728 | for (n = 0; n < nstrings; n++) |
1729 | { | |
1730 | if (n >= nargs) | |
50aa2f90 | 1731 | strings[i++] = (unsigned char *) ""; |
ae683129 | 1732 | else if (INTEGERP (args[n])) |
35692fe0 JB |
1733 | /* We checked above that the corresponding format effector |
1734 | isn't %s, which would cause MPV. */ | |
50aa2f90 | 1735 | strings[i++] = (unsigned char *) XINT (args[n]); |
4746118a | 1736 | #ifdef LISP_FLOAT_TYPE |
ae683129 | 1737 | else if (FLOATP (args[n])) |
35692fe0 JB |
1738 | { |
1739 | union { double d; int half[2]; } u; | |
1740 | ||
1741 | u.d = XFLOAT (args[n])->data; | |
50aa2f90 JB |
1742 | strings[i++] = (unsigned char *) u.half[0]; |
1743 | strings[i++] = (unsigned char *) u.half[1]; | |
35692fe0 | 1744 | } |
4746118a | 1745 | #endif |
35692fe0 | 1746 | else |
50aa2f90 | 1747 | strings[i++] = XSTRING (args[n])->data; |
35692fe0 JB |
1748 | } |
1749 | ||
1750 | /* Format it in bigger and bigger buf's until it all fits. */ | |
1751 | while (1) | |
1752 | { | |
1753 | buf = (char *) alloca (total + 1); | |
1754 | buf[total - 1] = 0; | |
1755 | ||
50aa2f90 | 1756 | length = doprnt (buf, total + 1, strings[0], end, i-1, strings + 1); |
35692fe0 JB |
1757 | if (buf[total - 1] == 0) |
1758 | break; | |
1759 | ||
1760 | total *= 2; | |
1761 | } | |
1762 | } | |
1763 | ||
1764 | /* UNGCPRO; */ | |
1765 | return make_string (buf, length); | |
1766 | } | |
1767 | ||
1768 | /* VARARGS 1 */ | |
1769 | Lisp_Object | |
1770 | #ifdef NO_ARG_ARRAY | |
1771 | format1 (string1, arg0, arg1, arg2, arg3, arg4) | |
679e18b1 | 1772 | EMACS_INT arg0, arg1, arg2, arg3, arg4; |
35692fe0 JB |
1773 | #else |
1774 | format1 (string1) | |
1775 | #endif | |
1776 | char *string1; | |
1777 | { | |
1778 | char buf[100]; | |
1779 | #ifdef NO_ARG_ARRAY | |
679e18b1 | 1780 | EMACS_INT args[5]; |
35692fe0 JB |
1781 | args[0] = arg0; |
1782 | args[1] = arg1; | |
1783 | args[2] = arg2; | |
1784 | args[3] = arg3; | |
1785 | args[4] = arg4; | |
1786 | doprnt (buf, sizeof buf, string1, 0, 5, args); | |
1787 | #else | |
1788 | doprnt (buf, sizeof buf, string1, 0, 5, &string1 + 1); | |
1789 | #endif | |
1790 | return build_string (buf); | |
1791 | } | |
1792 | \f | |
1793 | DEFUN ("char-equal", Fchar_equal, Schar_equal, 2, 2, 0, | |
1794 | "Return t if two characters match, optionally ignoring case.\n\ | |
1795 | Both arguments must be characters (i.e. integers).\n\ | |
1796 | Case is ignored if `case-fold-search' is non-nil in the current buffer.") | |
1797 | (c1, c2) | |
1798 | register Lisp_Object c1, c2; | |
1799 | { | |
1800 | unsigned char *downcase = DOWNCASE_TABLE; | |
1801 | CHECK_NUMBER (c1, 0); | |
1802 | CHECK_NUMBER (c2, 1); | |
1803 | ||
56a98455 | 1804 | if (!NILP (current_buffer->case_fold_search) |
c34beca9 RS |
1805 | ? (downcase[0xff & XFASTINT (c1)] == downcase[0xff & XFASTINT (c2)] |
1806 | && (XFASTINT (c1) & ~0xff) == (XFASTINT (c2) & ~0xff)) | |
35692fe0 JB |
1807 | : XINT (c1) == XINT (c2)) |
1808 | return Qt; | |
1809 | return Qnil; | |
1810 | } | |
b229b8d1 RS |
1811 | \f |
1812 | /* Transpose the markers in two regions of the current buffer, and | |
1813 | adjust the ones between them if necessary (i.e.: if the regions | |
1814 | differ in size). | |
1815 | ||
1816 | Traverses the entire marker list of the buffer to do so, adding an | |
1817 | appropriate amount to some, subtracting from some, and leaving the | |
1818 | rest untouched. Most of this is copied from adjust_markers in insdel.c. | |
1819 | ||
03240d11 | 1820 | It's the caller's job to see that (start1 <= end1 <= start2 <= end2). */ |
b229b8d1 RS |
1821 | |
1822 | void | |
1823 | transpose_markers (start1, end1, start2, end2) | |
1824 | register int start1, end1, start2, end2; | |
1825 | { | |
1826 | register int amt1, amt2, diff, mpos; | |
1827 | register Lisp_Object marker; | |
b229b8d1 | 1828 | |
03240d11 | 1829 | /* Update point as if it were a marker. */ |
8de1d5f0 KH |
1830 | if (PT < start1) |
1831 | ; | |
1832 | else if (PT < end1) | |
1833 | TEMP_SET_PT (PT + (end2 - end1)); | |
1834 | else if (PT < start2) | |
1835 | TEMP_SET_PT (PT + (end2 - start2) - (end1 - start1)); | |
1836 | else if (PT < end2) | |
1837 | TEMP_SET_PT (PT - (start2 - start1)); | |
1838 | ||
03240d11 KH |
1839 | /* We used to adjust the endpoints here to account for the gap, but that |
1840 | isn't good enough. Even if we assume the caller has tried to move the | |
1841 | gap out of our way, it might still be at start1 exactly, for example; | |
1842 | and that places it `inside' the interval, for our purposes. The amount | |
1843 | of adjustment is nontrivial if there's a `denormalized' marker whose | |
1844 | position is between GPT and GPT + GAP_SIZE, so it's simpler to leave | |
1845 | the dirty work to Fmarker_position, below. */ | |
b229b8d1 RS |
1846 | |
1847 | /* The difference between the region's lengths */ | |
1848 | diff = (end2 - start2) - (end1 - start1); | |
1849 | ||
1850 | /* For shifting each marker in a region by the length of the other | |
1851 | * region plus the distance between the regions. | |
1852 | */ | |
1853 | amt1 = (end2 - start2) + (start2 - end1); | |
1854 | amt2 = (end1 - start1) + (start2 - end1); | |
1855 | ||
03240d11 KH |
1856 | for (marker = current_buffer->markers; !NILP (marker); |
1857 | marker = XMARKER (marker)->chain) | |
b229b8d1 | 1858 | { |
03240d11 KH |
1859 | mpos = Fmarker_position (marker); |
1860 | if (mpos >= start1 && mpos < end2) | |
1861 | { | |
1862 | if (mpos < end1) | |
1863 | mpos += amt1; | |
1864 | else if (mpos < start2) | |
1865 | mpos += diff; | |
1866 | else | |
1867 | mpos -= amt2; | |
1868 | if (mpos > GPT) mpos += GAP_SIZE; | |
1869 | XMARKER (marker)->bufpos = mpos; | |
1870 | } | |
b229b8d1 RS |
1871 | } |
1872 | } | |
1873 | ||
1874 | DEFUN ("transpose-regions", Ftranspose_regions, Stranspose_regions, 4, 5, 0, | |
1875 | "Transpose region START1 to END1 with START2 to END2.\n\ | |
1876 | The regions may not be overlapping, because the size of the buffer is\n\ | |
1877 | never changed in a transposition.\n\ | |
1878 | \n\ | |
1879 | Optional fifth arg LEAVE_MARKERS, if non-nil, means don't transpose\n\ | |
1880 | any markers that happen to be located in the regions.\n\ | |
1881 | \n\ | |
1882 | Transposing beyond buffer boundaries is an error.") | |
1883 | (startr1, endr1, startr2, endr2, leave_markers) | |
1884 | Lisp_Object startr1, endr1, startr2, endr2, leave_markers; | |
1885 | { | |
1886 | register int start1, end1, start2, end2, | |
1887 | gap, len1, len_mid, len2; | |
3c6bc7d0 | 1888 | unsigned char *start1_addr, *start2_addr, *temp; |
b229b8d1 RS |
1889 | |
1890 | #ifdef USE_TEXT_PROPERTIES | |
1891 | INTERVAL cur_intv, tmp_interval1, tmp_interval_mid, tmp_interval2; | |
1892 | cur_intv = current_buffer->intervals; | |
1893 | #endif /* USE_TEXT_PROPERTIES */ | |
1894 | ||
1895 | validate_region (&startr1, &endr1); | |
1896 | validate_region (&startr2, &endr2); | |
1897 | ||
1898 | start1 = XFASTINT (startr1); | |
1899 | end1 = XFASTINT (endr1); | |
1900 | start2 = XFASTINT (startr2); | |
1901 | end2 = XFASTINT (endr2); | |
1902 | gap = GPT; | |
1903 | ||
1904 | /* Swap the regions if they're reversed. */ | |
1905 | if (start2 < end1) | |
1906 | { | |
1907 | register int glumph = start1; | |
1908 | start1 = start2; | |
1909 | start2 = glumph; | |
1910 | glumph = end1; | |
1911 | end1 = end2; | |
1912 | end2 = glumph; | |
1913 | } | |
1914 | ||
b229b8d1 RS |
1915 | len1 = end1 - start1; |
1916 | len2 = end2 - start2; | |
1917 | ||
1918 | if (start2 < end1) | |
1919 | error ("transposed regions not properly ordered"); | |
1920 | else if (start1 == end1 || start2 == end2) | |
1921 | error ("transposed region may not be of length 0"); | |
1922 | ||
1923 | /* The possibilities are: | |
1924 | 1. Adjacent (contiguous) regions, or separate but equal regions | |
1925 | (no, really equal, in this case!), or | |
1926 | 2. Separate regions of unequal size. | |
1927 | ||
1928 | The worst case is usually No. 2. It means that (aside from | |
1929 | potential need for getting the gap out of the way), there also | |
1930 | needs to be a shifting of the text between the two regions. So | |
1931 | if they are spread far apart, we are that much slower... sigh. */ | |
1932 | ||
1933 | /* It must be pointed out that the really studly thing to do would | |
1934 | be not to move the gap at all, but to leave it in place and work | |
1935 | around it if necessary. This would be extremely efficient, | |
1936 | especially considering that people are likely to do | |
1937 | transpositions near where they are working interactively, which | |
1938 | is exactly where the gap would be found. However, such code | |
1939 | would be much harder to write and to read. So, if you are | |
1940 | reading this comment and are feeling squirrely, by all means have | |
1941 | a go! I just didn't feel like doing it, so I will simply move | |
1942 | the gap the minimum distance to get it out of the way, and then | |
1943 | deal with an unbroken array. */ | |
3c6bc7d0 RS |
1944 | |
1945 | /* Make sure the gap won't interfere, by moving it out of the text | |
1946 | we will operate on. */ | |
1947 | if (start1 < gap && gap < end2) | |
1948 | { | |
1949 | if (gap - start1 < end2 - gap) | |
1950 | move_gap (start1); | |
1951 | else | |
1952 | move_gap (end2); | |
1953 | } | |
b229b8d1 RS |
1954 | |
1955 | /* Hmmm... how about checking to see if the gap is large | |
1956 | enough to use as the temporary storage? That would avoid an | |
1957 | allocation... interesting. Later, don't fool with it now. */ | |
1958 | ||
1959 | /* Working without memmove, for portability (sigh), so must be | |
1960 | careful of overlapping subsections of the array... */ | |
1961 | ||
1962 | if (end1 == start2) /* adjacent regions */ | |
1963 | { | |
b229b8d1 RS |
1964 | modify_region (current_buffer, start1, end2); |
1965 | record_change (start1, len1 + len2); | |
1966 | ||
1967 | #ifdef USE_TEXT_PROPERTIES | |
1968 | tmp_interval1 = copy_intervals (cur_intv, start1, len1); | |
1969 | tmp_interval2 = copy_intervals (cur_intv, start2, len2); | |
1970 | Fset_text_properties (start1, end2, Qnil, Qnil); | |
1971 | #endif /* USE_TEXT_PROPERTIES */ | |
1972 | ||
1973 | /* First region smaller than second. */ | |
1974 | if (len1 < len2) | |
1975 | { | |
3c6bc7d0 RS |
1976 | /* We use alloca only if it is small, |
1977 | because we want to avoid stack overflow. */ | |
1978 | if (len2 > 20000) | |
1979 | temp = (unsigned char *) xmalloc (len2); | |
1980 | else | |
1981 | temp = (unsigned char *) alloca (len2); | |
03240d11 KH |
1982 | |
1983 | /* Don't precompute these addresses. We have to compute them | |
1984 | at the last minute, because the relocating allocator might | |
1985 | have moved the buffer around during the xmalloc. */ | |
1986 | start1_addr = BUF_CHAR_ADDRESS (current_buffer, start1); | |
1987 | start2_addr = BUF_CHAR_ADDRESS (current_buffer, start2); | |
1988 | ||
b229b8d1 RS |
1989 | bcopy (start2_addr, temp, len2); |
1990 | bcopy (start1_addr, start1_addr + len2, len1); | |
1991 | bcopy (temp, start1_addr, len2); | |
3c6bc7d0 RS |
1992 | if (len2 > 20000) |
1993 | free (temp); | |
b229b8d1 RS |
1994 | } |
1995 | else | |
1996 | /* First region not smaller than second. */ | |
1997 | { | |
3c6bc7d0 RS |
1998 | if (len1 > 20000) |
1999 | temp = (unsigned char *) xmalloc (len1); | |
2000 | else | |
2001 | temp = (unsigned char *) alloca (len1); | |
03240d11 KH |
2002 | start1_addr = BUF_CHAR_ADDRESS (current_buffer, start1); |
2003 | start2_addr = BUF_CHAR_ADDRESS (current_buffer, start2); | |
b229b8d1 RS |
2004 | bcopy (start1_addr, temp, len1); |
2005 | bcopy (start2_addr, start1_addr, len2); | |
2006 | bcopy (temp, start1_addr + len2, len1); | |
3c6bc7d0 RS |
2007 | if (len1 > 20000) |
2008 | free (temp); | |
b229b8d1 RS |
2009 | } |
2010 | #ifdef USE_TEXT_PROPERTIES | |
2011 | graft_intervals_into_buffer (tmp_interval1, start1 + len2, | |
2012 | len1, current_buffer, 0); | |
2013 | graft_intervals_into_buffer (tmp_interval2, start1, | |
2014 | len2, current_buffer, 0); | |
2015 | #endif /* USE_TEXT_PROPERTIES */ | |
2016 | } | |
2017 | /* Non-adjacent regions, because end1 != start2, bleagh... */ | |
2018 | else | |
2019 | { | |
b229b8d1 RS |
2020 | if (len1 == len2) |
2021 | /* Regions are same size, though, how nice. */ | |
2022 | { | |
2023 | modify_region (current_buffer, start1, end1); | |
2024 | modify_region (current_buffer, start2, end2); | |
2025 | record_change (start1, len1); | |
2026 | record_change (start2, len2); | |
2027 | #ifdef USE_TEXT_PROPERTIES | |
2028 | tmp_interval1 = copy_intervals (cur_intv, start1, len1); | |
2029 | tmp_interval2 = copy_intervals (cur_intv, start2, len2); | |
2030 | Fset_text_properties (start1, end1, Qnil, Qnil); | |
2031 | Fset_text_properties (start2, end2, Qnil, Qnil); | |
2032 | #endif /* USE_TEXT_PROPERTIES */ | |
2033 | ||
3c6bc7d0 RS |
2034 | if (len1 > 20000) |
2035 | temp = (unsigned char *) xmalloc (len1); | |
2036 | else | |
2037 | temp = (unsigned char *) alloca (len1); | |
03240d11 KH |
2038 | start1_addr = BUF_CHAR_ADDRESS (current_buffer, start1); |
2039 | start2_addr = BUF_CHAR_ADDRESS (current_buffer, start2); | |
b229b8d1 RS |
2040 | bcopy (start1_addr, temp, len1); |
2041 | bcopy (start2_addr, start1_addr, len2); | |
2042 | bcopy (temp, start2_addr, len1); | |
3c6bc7d0 RS |
2043 | if (len1 > 20000) |
2044 | free (temp); | |
b229b8d1 RS |
2045 | #ifdef USE_TEXT_PROPERTIES |
2046 | graft_intervals_into_buffer (tmp_interval1, start2, | |
2047 | len1, current_buffer, 0); | |
2048 | graft_intervals_into_buffer (tmp_interval2, start1, | |
2049 | len2, current_buffer, 0); | |
2050 | #endif /* USE_TEXT_PROPERTIES */ | |
2051 | } | |
2052 | ||
2053 | else if (len1 < len2) /* Second region larger than first */ | |
2054 | /* Non-adjacent & unequal size, area between must also be shifted. */ | |
2055 | { | |
2056 | len_mid = start2 - end1; | |
2057 | modify_region (current_buffer, start1, end2); | |
2058 | record_change (start1, (end2 - start1)); | |
2059 | #ifdef USE_TEXT_PROPERTIES | |
2060 | tmp_interval1 = copy_intervals (cur_intv, start1, len1); | |
2061 | tmp_interval_mid = copy_intervals (cur_intv, end1, len_mid); | |
2062 | tmp_interval2 = copy_intervals (cur_intv, start2, len2); | |
2063 | Fset_text_properties (start1, end2, Qnil, Qnil); | |
2064 | #endif /* USE_TEXT_PROPERTIES */ | |
2065 | ||
3c6bc7d0 RS |
2066 | /* holds region 2 */ |
2067 | if (len2 > 20000) | |
2068 | temp = (unsigned char *) xmalloc (len2); | |
2069 | else | |
2070 | temp = (unsigned char *) alloca (len2); | |
03240d11 KH |
2071 | start1_addr = BUF_CHAR_ADDRESS (current_buffer, start1); |
2072 | start2_addr = BUF_CHAR_ADDRESS (current_buffer, start2); | |
3c6bc7d0 | 2073 | bcopy (start2_addr, temp, len2); |
b229b8d1 | 2074 | bcopy (start1_addr, start1_addr + len_mid + len2, len1); |
3c6bc7d0 RS |
2075 | safe_bcopy (start1_addr + len1, start1_addr + len2, len_mid); |
2076 | bcopy (temp, start1_addr, len2); | |
2077 | if (len2 > 20000) | |
2078 | free (temp); | |
b229b8d1 RS |
2079 | #ifdef USE_TEXT_PROPERTIES |
2080 | graft_intervals_into_buffer (tmp_interval1, end2 - len1, | |
2081 | len1, current_buffer, 0); | |
2082 | graft_intervals_into_buffer (tmp_interval_mid, start1 + len2, | |
2083 | len_mid, current_buffer, 0); | |
2084 | graft_intervals_into_buffer (tmp_interval2, start1, | |
2085 | len2, current_buffer, 0); | |
2086 | #endif /* USE_TEXT_PROPERTIES */ | |
2087 | } | |
2088 | else | |
2089 | /* Second region smaller than first. */ | |
2090 | { | |
2091 | len_mid = start2 - end1; | |
2092 | record_change (start1, (end2 - start1)); | |
2093 | modify_region (current_buffer, start1, end2); | |
2094 | ||
2095 | #ifdef USE_TEXT_PROPERTIES | |
2096 | tmp_interval1 = copy_intervals (cur_intv, start1, len1); | |
2097 | tmp_interval_mid = copy_intervals (cur_intv, end1, len_mid); | |
2098 | tmp_interval2 = copy_intervals (cur_intv, start2, len2); | |
2099 | Fset_text_properties (start1, end2, Qnil, Qnil); | |
2100 | #endif /* USE_TEXT_PROPERTIES */ | |
2101 | ||
3c6bc7d0 RS |
2102 | /* holds region 1 */ |
2103 | if (len1 > 20000) | |
2104 | temp = (unsigned char *) xmalloc (len1); | |
2105 | else | |
2106 | temp = (unsigned char *) alloca (len1); | |
03240d11 KH |
2107 | start1_addr = BUF_CHAR_ADDRESS (current_buffer, start1); |
2108 | start2_addr = BUF_CHAR_ADDRESS (current_buffer, start2); | |
3c6bc7d0 | 2109 | bcopy (start1_addr, temp, len1); |
b229b8d1 | 2110 | bcopy (start2_addr, start1_addr, len2); |
3c6bc7d0 RS |
2111 | bcopy (start1_addr + len1, start1_addr + len2, len_mid); |
2112 | bcopy (temp, start1_addr + len2 + len_mid, len1); | |
2113 | if (len1 > 20000) | |
2114 | free (temp); | |
b229b8d1 RS |
2115 | #ifdef USE_TEXT_PROPERTIES |
2116 | graft_intervals_into_buffer (tmp_interval1, end2 - len1, | |
2117 | len1, current_buffer, 0); | |
2118 | graft_intervals_into_buffer (tmp_interval_mid, start1 + len2, | |
2119 | len_mid, current_buffer, 0); | |
2120 | graft_intervals_into_buffer (tmp_interval2, start1, | |
2121 | len2, current_buffer, 0); | |
2122 | #endif /* USE_TEXT_PROPERTIES */ | |
2123 | } | |
2124 | } | |
2125 | ||
2126 | /* todo: this will be slow, because for every transposition, we | |
2127 | traverse the whole friggin marker list. Possible solutions: | |
2128 | somehow get a list of *all* the markers across multiple | |
2129 | transpositions and do it all in one swell phoop. Or maybe modify | |
2130 | Emacs' marker code to keep an ordered list or tree. This might | |
2131 | be nicer, and more beneficial in the long run, but would be a | |
2132 | bunch of work. Plus the way they're arranged now is nice. */ | |
2133 | if (NILP (leave_markers)) | |
8de1d5f0 KH |
2134 | { |
2135 | transpose_markers (start1, end1, start2, end2); | |
2136 | fix_overlays_in_range (start1, end2); | |
2137 | } | |
b229b8d1 RS |
2138 | |
2139 | return Qnil; | |
2140 | } | |
35692fe0 | 2141 | |
35692fe0 JB |
2142 | \f |
2143 | void | |
2144 | syms_of_editfns () | |
2145 | { | |
f43754f6 KH |
2146 | DEFVAR_LISP ("system-name", &Vsystem_name, |
2147 | "The name of the machine Emacs is running on."); | |
2148 | ||
2149 | DEFVAR_LISP ("user-full-name", &Vuser_full_name, | |
2150 | "The full name of the user logged in."); | |
2151 | ||
2152 | DEFVAR_LISP ("user-name", &Vuser_name, | |
2153 | "The user's name, taken from environment variables if possible."); | |
2154 | ||
2155 | DEFVAR_LISP ("user-real-name", &Vuser_real_name, | |
2156 | "The user's name, based upon the real uid only."); | |
35692fe0 JB |
2157 | |
2158 | defsubr (&Schar_equal); | |
2159 | defsubr (&Sgoto_char); | |
2160 | defsubr (&Sstring_to_char); | |
2161 | defsubr (&Schar_to_string); | |
2162 | defsubr (&Sbuffer_substring); | |
2163 | defsubr (&Sbuffer_string); | |
2164 | ||
2165 | defsubr (&Spoint_marker); | |
2166 | defsubr (&Smark_marker); | |
2167 | defsubr (&Spoint); | |
2168 | defsubr (&Sregion_beginning); | |
2169 | defsubr (&Sregion_end); | |
2170 | /* defsubr (&Smark); */ | |
2171 | /* defsubr (&Sset_mark); */ | |
2172 | defsubr (&Ssave_excursion); | |
2173 | ||
2174 | defsubr (&Sbufsize); | |
2175 | defsubr (&Spoint_max); | |
2176 | defsubr (&Spoint_min); | |
2177 | defsubr (&Spoint_min_marker); | |
2178 | defsubr (&Spoint_max_marker); | |
2179 | ||
2180 | defsubr (&Sbobp); | |
2181 | defsubr (&Seobp); | |
2182 | defsubr (&Sbolp); | |
2183 | defsubr (&Seolp); | |
850a8179 JB |
2184 | defsubr (&Sfollowing_char); |
2185 | defsubr (&Sprevious_char); | |
35692fe0 JB |
2186 | defsubr (&Schar_after); |
2187 | defsubr (&Sinsert); | |
2188 | defsubr (&Sinsert_before_markers); | |
be91036a RS |
2189 | defsubr (&Sinsert_and_inherit); |
2190 | defsubr (&Sinsert_and_inherit_before_markers); | |
35692fe0 JB |
2191 | defsubr (&Sinsert_char); |
2192 | ||
2193 | defsubr (&Suser_login_name); | |
2194 | defsubr (&Suser_real_login_name); | |
2195 | defsubr (&Suser_uid); | |
2196 | defsubr (&Suser_real_uid); | |
2197 | defsubr (&Suser_full_name); | |
7fd233b3 | 2198 | defsubr (&Semacs_pid); |
d940e0e4 | 2199 | defsubr (&Scurrent_time); |
a82d387c | 2200 | defsubr (&Sformat_time_string); |
4691c06d | 2201 | defsubr (&Sdecode_time); |
35692fe0 | 2202 | defsubr (&Scurrent_time_string); |
c2662aea | 2203 | defsubr (&Scurrent_time_zone); |
35692fe0 | 2204 | defsubr (&Ssystem_name); |
35692fe0 | 2205 | defsubr (&Smessage); |
cacc3e2c RS |
2206 | defsubr (&Smessage_box); |
2207 | defsubr (&Smessage_or_box); | |
35692fe0 | 2208 | defsubr (&Sformat); |
35692fe0 JB |
2209 | |
2210 | defsubr (&Sinsert_buffer_substring); | |
e9cf2084 | 2211 | defsubr (&Scompare_buffer_substrings); |
35692fe0 JB |
2212 | defsubr (&Ssubst_char_in_region); |
2213 | defsubr (&Stranslate_region); | |
2214 | defsubr (&Sdelete_region); | |
2215 | defsubr (&Swiden); | |
2216 | defsubr (&Snarrow_to_region); | |
2217 | defsubr (&Ssave_restriction); | |
b229b8d1 | 2218 | defsubr (&Stranspose_regions); |
35692fe0 | 2219 | } |