Commit | Line | Data |
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35692fe0 | 1 | /* Lisp functions pertaining to editing. |
0b5538bd TTN |
2 | Copyright (C) 1985, 1986, 1987, 1989, 1993, 1994, 1995, 1996, |
3 | 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, | |
8cabe764 | 4 | 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
35692fe0 JB |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
9ec0b715 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
35692fe0 | 9 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
35692fe0 JB |
12 | |
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
35692fe0 JB |
20 | |
21 | ||
18160b98 | 22 | #include <config.h> |
68c45bf0 | 23 | #include <sys/types.h> |
3c14598c | 24 | #include <stdio.h> |
bfb61299 | 25 | |
5b9c0a1d | 26 | #ifdef HAVE_PWD_H |
35692fe0 | 27 | #include <pwd.h> |
bfb61299 JB |
28 | #endif |
29 | ||
dfcf069d AS |
30 | #ifdef HAVE_UNISTD_H |
31 | #include <unistd.h> | |
32 | #endif | |
33 | ||
3bb9abc8 ST |
34 | #ifdef HAVE_SYS_UTSNAME_H |
35 | #include <sys/utsname.h> | |
36 | #endif | |
37 | ||
b17f9379 DN |
38 | #include "lisp.h" |
39 | ||
3c14598c EZ |
40 | /* systime.h includes <sys/time.h> which, on some systems, is required |
41 | for <sys/resource.h>; thus systime.h must be included before | |
42 | <sys/resource.h> */ | |
43 | #include "systime.h" | |
21acf124 ST |
44 | |
45 | #if defined HAVE_SYS_RESOURCE_H | |
4211ee7d | 46 | #include <sys/resource.h> |
e0f712ba AC |
47 | #endif |
48 | ||
409847a1 RS |
49 | #include <ctype.h> |
50 | ||
74d6d8c5 | 51 | #include "intervals.h" |
35692fe0 | 52 | #include "buffer.h" |
40fbd254 | 53 | #include "character.h" |
68c45bf0 | 54 | #include "coding.h" |
0ae83348 | 55 | #include "frame.h" |
35692fe0 | 56 | #include "window.h" |
b91834c3 | 57 | #include "blockinput.h" |
35692fe0 | 58 | |
ea229bec GM |
59 | #ifdef STDC_HEADERS |
60 | #include <float.h> | |
61 | #define MAX_10_EXP DBL_MAX_10_EXP | |
62 | #else | |
63 | #define MAX_10_EXP 310 | |
64 | #endif | |
65 | ||
a03eaf1c RS |
66 | #ifndef NULL |
67 | #define NULL 0 | |
68 | #endif | |
69 | ||
f12ef5eb | 70 | #ifndef USE_CRT_DLL |
c59b5089 | 71 | extern char **environ; |
f12ef5eb AI |
72 | #endif |
73 | ||
aac18aa4 PE |
74 | #define TM_YEAR_BASE 1900 |
75 | ||
d65b4235 PE |
76 | /* Nonzero if TM_YEAR is a struct tm's tm_year value that causes |
77 | asctime to have well-defined behavior. */ | |
78 | #ifndef TM_YEAR_IN_ASCTIME_RANGE | |
79 | # define TM_YEAR_IN_ASCTIME_RANGE(tm_year) \ | |
80 | (1000 - TM_YEAR_BASE <= (tm_year) && (tm_year) <= 9999 - TM_YEAR_BASE) | |
81 | #endif | |
82 | ||
acb7cc89 GM |
83 | extern size_t emacs_strftimeu P_ ((char *, size_t, const char *, |
84 | const struct tm *, int)); | |
c433c134 JR |
85 | |
86 | #ifdef WINDOWSNT | |
87 | extern Lisp_Object w32_get_internal_run_time (); | |
88 | #endif | |
89 | ||
acb7cc89 | 90 | static int tm_diff P_ ((struct tm *, struct tm *)); |
9ac741c5 | 91 | static void find_field P_ ((Lisp_Object, Lisp_Object, Lisp_Object, int *, Lisp_Object, int *)); |
acb7cc89 GM |
92 | static void update_buffer_properties P_ ((int, int)); |
93 | static Lisp_Object region_limit P_ ((int)); | |
5c5718b6 | 94 | int lisp_time_argument P_ ((Lisp_Object, time_t *, int *)); |
acb7cc89 GM |
95 | static size_t emacs_memftimeu P_ ((char *, size_t, const char *, |
96 | size_t, const struct tm *, int)); | |
439e8af4 | 97 | static void general_insert_function P_ ((void (*) (const unsigned char *, int), |
acb7cc89 GM |
98 | void (*) (Lisp_Object, int, int, int, |
99 | int, int), | |
100 | int, int, Lisp_Object *)); | |
101 | static Lisp_Object subst_char_in_region_unwind P_ ((Lisp_Object)); | |
102 | static Lisp_Object subst_char_in_region_unwind_1 P_ ((Lisp_Object)); | |
103 | static void transpose_markers P_ ((int, int, int, int, int, int, int, int)); | |
260e2e2a | 104 | |
8892f40b GM |
105 | #ifdef HAVE_INDEX |
106 | extern char *index P_ ((const char *, int)); | |
107 | #endif | |
108 | ||
260e2e2a KH |
109 | Lisp_Object Vbuffer_access_fontify_functions; |
110 | Lisp_Object Qbuffer_access_fontify_functions; | |
111 | Lisp_Object Vbuffer_access_fontified_property; | |
b1b0ee5a | 112 | |
acb7cc89 | 113 | Lisp_Object Fuser_full_name P_ ((Lisp_Object)); |
e3ed8469 | 114 | |
9a74e7e5 GM |
115 | /* Non-nil means don't stop at field boundary in text motion commands. */ |
116 | ||
117 | Lisp_Object Vinhibit_field_text_motion; | |
118 | ||
35692fe0 JB |
119 | /* Some static data, and a function to initialize it for each run */ |
120 | ||
121 | Lisp_Object Vsystem_name; | |
35b34f72 KH |
122 | Lisp_Object Vuser_real_login_name; /* login name of current user ID */ |
123 | Lisp_Object Vuser_full_name; /* full name of current user */ | |
124 | Lisp_Object Vuser_login_name; /* user name from LOGNAME or USER */ | |
3bb9abc8 | 125 | Lisp_Object Voperating_system_release; /* Operating System Release */ |
35692fe0 | 126 | |
acb7cc89 GM |
127 | /* Symbol for the text property used to mark fields. */ |
128 | ||
129 | Lisp_Object Qfield; | |
130 | ||
131 | /* A special value for Qfield properties. */ | |
132 | ||
133 | Lisp_Object Qboundary; | |
134 | ||
135 | ||
35692fe0 JB |
136 | void |
137 | init_editfns () | |
138 | { | |
52b14ac0 | 139 | char *user_name; |
2ea0266e | 140 | register unsigned char *p; |
35692fe0 | 141 | struct passwd *pw; /* password entry for the current user */ |
35692fe0 JB |
142 | Lisp_Object tem; |
143 | ||
144 | /* Set up system_name even when dumping. */ | |
ac988277 | 145 | init_system_name (); |
35692fe0 JB |
146 | |
147 | #ifndef CANNOT_DUMP | |
148 | /* Don't bother with this on initial start when just dumping out */ | |
149 | if (!initialized) | |
150 | return; | |
151 | #endif /* not CANNOT_DUMP */ | |
152 | ||
153 | pw = (struct passwd *) getpwuid (getuid ()); | |
87485d6f MW |
154 | #ifdef MSDOS |
155 | /* We let the real user name default to "root" because that's quite | |
156 | accurate on MSDOG and because it lets Emacs find the init file. | |
157 | (The DVX libraries override the Djgpp libraries here.) */ | |
35b34f72 | 158 | Vuser_real_login_name = build_string (pw ? pw->pw_name : "root"); |
87485d6f | 159 | #else |
35b34f72 | 160 | Vuser_real_login_name = build_string (pw ? pw->pw_name : "unknown"); |
87485d6f | 161 | #endif |
35692fe0 | 162 | |
52b14ac0 JB |
163 | /* Get the effective user name, by consulting environment variables, |
164 | or the effective uid if those are unset. */ | |
2c9ae24e | 165 | user_name = (char *) getenv ("LOGNAME"); |
35692fe0 | 166 | if (!user_name) |
4691c06d RS |
167 | #ifdef WINDOWSNT |
168 | user_name = (char *) getenv ("USERNAME"); /* it's USERNAME on NT */ | |
169 | #else /* WINDOWSNT */ | |
2c9ae24e | 170 | user_name = (char *) getenv ("USER"); |
4691c06d | 171 | #endif /* WINDOWSNT */ |
52b14ac0 JB |
172 | if (!user_name) |
173 | { | |
174 | pw = (struct passwd *) getpwuid (geteuid ()); | |
175 | user_name = (char *) (pw ? pw->pw_name : "unknown"); | |
176 | } | |
35b34f72 | 177 | Vuser_login_name = build_string (user_name); |
35692fe0 | 178 | |
52b14ac0 JB |
179 | /* If the user name claimed in the environment vars differs from |
180 | the real uid, use the claimed name to find the full name. */ | |
35b34f72 | 181 | tem = Fstring_equal (Vuser_login_name, Vuser_real_login_name); |
3415b0e9 RS |
182 | Vuser_full_name = Fuser_full_name (NILP (tem)? make_number (geteuid()) |
183 | : Vuser_login_name); | |
34a7a267 | 184 | |
8f1e2d16 | 185 | p = (unsigned char *) getenv ("NAME"); |
9d36d071 RS |
186 | if (p) |
187 | Vuser_full_name = build_string (p); | |
3347526c RS |
188 | else if (NILP (Vuser_full_name)) |
189 | Vuser_full_name = build_string ("unknown"); | |
3bb9abc8 ST |
190 | |
191 | #ifdef HAVE_SYS_UTSNAME_H | |
192 | { | |
193 | struct utsname uts; | |
194 | uname (&uts); | |
195 | Voperating_system_release = build_string (uts.release); | |
196 | } | |
197 | #else | |
198 | Voperating_system_release = Qnil; | |
199 | #endif | |
35692fe0 JB |
200 | } |
201 | \f | |
202 | DEFUN ("char-to-string", Fchar_to_string, Schar_to_string, 1, 1, 0, | |
06283081 PJ |
203 | doc: /* Convert arg CHAR to a string containing that character. |
204 | usage: (char-to-string CHAR) */) | |
7ee72033 | 205 | (character) |
2591ec64 | 206 | Lisp_Object character; |
35692fe0 | 207 | { |
fb8106e8 | 208 | int len; |
d5c2c403 | 209 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
fb8106e8 | 210 | |
1b9c91ed | 211 | CHECK_CHARACTER (character); |
35692fe0 | 212 | |
40fbd254 | 213 | len = CHAR_STRING (XFASTINT (character), str); |
5f75e666 | 214 | return make_string_from_bytes (str, 1, len); |
35692fe0 JB |
215 | } |
216 | ||
217 | DEFUN ("string-to-char", Fstring_to_char, Sstring_to_char, 1, 1, 0, | |
7ee72033 MB |
218 | doc: /* Convert arg STRING to a character, the first character of that string. |
219 | A multibyte character is handled correctly. */) | |
220 | (string) | |
2591ec64 | 221 | register Lisp_Object string; |
35692fe0 JB |
222 | { |
223 | register Lisp_Object val; | |
b7826503 | 224 | CHECK_STRING (string); |
4e491f8d | 225 | if (SCHARS (string)) |
d9d851ea KH |
226 | { |
227 | if (STRING_MULTIBYTE (string)) | |
4e491f8d | 228 | XSETFASTINT (val, STRING_CHAR (SDATA (string), SBYTES (string))); |
d9d851ea | 229 | else |
4e491f8d | 230 | XSETFASTINT (val, SREF (string, 0)); |
d9d851ea | 231 | } |
35692fe0 | 232 | else |
55561c63 | 233 | XSETFASTINT (val, 0); |
35692fe0 JB |
234 | return val; |
235 | } | |
236 | \f | |
237 | static Lisp_Object | |
ec1c14f6 RS |
238 | buildmark (charpos, bytepos) |
239 | int charpos, bytepos; | |
35692fe0 JB |
240 | { |
241 | register Lisp_Object mark; | |
242 | mark = Fmake_marker (); | |
ec1c14f6 | 243 | set_marker_both (mark, Qnil, charpos, bytepos); |
35692fe0 JB |
244 | return mark; |
245 | } | |
246 | ||
247 | DEFUN ("point", Fpoint, Spoint, 0, 0, 0, | |
7ee72033 MB |
248 | doc: /* Return value of point, as an integer. |
249 | Beginning of buffer is position (point-min). */) | |
250 | () | |
35692fe0 JB |
251 | { |
252 | Lisp_Object temp; | |
6ec8bbd2 | 253 | XSETFASTINT (temp, PT); |
35692fe0 JB |
254 | return temp; |
255 | } | |
256 | ||
257 | DEFUN ("point-marker", Fpoint_marker, Spoint_marker, 0, 0, 0, | |
7ee72033 MB |
258 | doc: /* Return value of point, as a marker object. */) |
259 | () | |
35692fe0 | 260 | { |
ec1c14f6 | 261 | return buildmark (PT, PT_BYTE); |
35692fe0 JB |
262 | } |
263 | ||
264 | int | |
265 | clip_to_bounds (lower, num, upper) | |
266 | int lower, num, upper; | |
267 | { | |
268 | if (num < lower) | |
269 | return lower; | |
270 | else if (num > upper) | |
271 | return upper; | |
272 | else | |
273 | return num; | |
274 | } | |
275 | ||
276 | DEFUN ("goto-char", Fgoto_char, Sgoto_char, 1, 1, "NGoto char: ", | |
7ee72033 | 277 | doc: /* Set point to POSITION, a number or marker. |
8696b557 EZ |
278 | Beginning of buffer is position (point-min), end is (point-max). |
279 | ||
280 | The return value is POSITION. */) | |
7ee72033 | 281 | (position) |
2591ec64 | 282 | register Lisp_Object position; |
35692fe0 | 283 | { |
fb8106e8 | 284 | int pos; |
fb8106e8 | 285 | |
72ef82ec RS |
286 | if (MARKERP (position) |
287 | && current_buffer == XMARKER (position)->buffer) | |
ec1c14f6 RS |
288 | { |
289 | pos = marker_position (position); | |
290 | if (pos < BEGV) | |
291 | SET_PT_BOTH (BEGV, BEGV_BYTE); | |
292 | else if (pos > ZV) | |
293 | SET_PT_BOTH (ZV, ZV_BYTE); | |
294 | else | |
295 | SET_PT_BOTH (pos, marker_byte_position (position)); | |
296 | ||
297 | return position; | |
298 | } | |
299 | ||
b7826503 | 300 | CHECK_NUMBER_COERCE_MARKER (position); |
35692fe0 | 301 | |
fb8106e8 | 302 | pos = clip_to_bounds (BEGV, XINT (position), ZV); |
fb8106e8 | 303 | SET_PT (pos); |
2591ec64 | 304 | return position; |
35692fe0 JB |
305 | } |
306 | ||
acb7cc89 GM |
307 | |
308 | /* Return the start or end position of the region. | |
309 | BEGINNINGP non-zero means return the start. | |
310 | If there is no region active, signal an error. */ | |
311 | ||
35692fe0 JB |
312 | static Lisp_Object |
313 | region_limit (beginningp) | |
314 | int beginningp; | |
315 | { | |
646d9d18 | 316 | extern Lisp_Object Vmark_even_if_inactive; /* Defined in callint.c. */ |
acb7cc89 | 317 | Lisp_Object m; |
177c0ea7 | 318 | |
acb7cc89 GM |
319 | if (!NILP (Vtransient_mark_mode) |
320 | && NILP (Vmark_even_if_inactive) | |
c9dd14e1 | 321 | && NILP (current_buffer->mark_active)) |
8a0ff744 | 322 | xsignal0 (Qmark_inactive); |
177c0ea7 | 323 | |
35692fe0 | 324 | m = Fmarker_position (current_buffer->mark); |
acb7cc89 | 325 | if (NILP (m)) |
7b5ad687 | 326 | error ("The mark is not set now, so there is no region"); |
177c0ea7 | 327 | |
f555f8cf | 328 | if ((PT < XFASTINT (m)) == (beginningp != 0)) |
acb7cc89 GM |
329 | m = make_number (PT); |
330 | return m; | |
35692fe0 JB |
331 | } |
332 | ||
333 | DEFUN ("region-beginning", Fregion_beginning, Sregion_beginning, 0, 0, 0, | |
7ee72033 MB |
334 | doc: /* Return position of beginning of region, as an integer. */) |
335 | () | |
35692fe0 | 336 | { |
acb7cc89 | 337 | return region_limit (1); |
35692fe0 JB |
338 | } |
339 | ||
340 | DEFUN ("region-end", Fregion_end, Sregion_end, 0, 0, 0, | |
7ee72033 MB |
341 | doc: /* Return position of end of region, as an integer. */) |
342 | () | |
35692fe0 | 343 | { |
acb7cc89 | 344 | return region_limit (0); |
35692fe0 JB |
345 | } |
346 | ||
35692fe0 | 347 | DEFUN ("mark-marker", Fmark_marker, Smark_marker, 0, 0, 0, |
7ee72033 | 348 | doc: /* Return this buffer's mark, as a marker object. |
a1f17501 | 349 | Watch out! Moving this marker changes the mark position. |
7ee72033 MB |
350 | If you set the marker not to point anywhere, the buffer will have no mark. */) |
351 | () | |
35692fe0 JB |
352 | { |
353 | return current_buffer->mark; | |
354 | } | |
acb7cc89 | 355 | |
c9ed721d | 356 | \f |
58401a34 SM |
357 | /* Find all the overlays in the current buffer that touch position POS. |
358 | Return the number found, and store them in a vector in VEC | |
359 | of length LEN. */ | |
360 | ||
361 | static int | |
362 | overlays_around (pos, vec, len) | |
363 | int pos; | |
364 | Lisp_Object *vec; | |
365 | int len; | |
366 | { | |
88006f77 SM |
367 | Lisp_Object overlay, start, end; |
368 | struct Lisp_Overlay *tail; | |
58401a34 SM |
369 | int startpos, endpos; |
370 | int idx = 0; | |
371 | ||
88006f77 | 372 | for (tail = current_buffer->overlays_before; tail; tail = tail->next) |
58401a34 | 373 | { |
88006f77 | 374 | XSETMISC (overlay, tail); |
58401a34 SM |
375 | |
376 | end = OVERLAY_END (overlay); | |
377 | endpos = OVERLAY_POSITION (end); | |
378 | if (endpos < pos) | |
379 | break; | |
380 | start = OVERLAY_START (overlay); | |
381 | startpos = OVERLAY_POSITION (start); | |
382 | if (startpos <= pos) | |
383 | { | |
384 | if (idx < len) | |
385 | vec[idx] = overlay; | |
386 | /* Keep counting overlays even if we can't return them all. */ | |
387 | idx++; | |
388 | } | |
389 | } | |
390 | ||
88006f77 | 391 | for (tail = current_buffer->overlays_after; tail; tail = tail->next) |
58401a34 | 392 | { |
88006f77 | 393 | XSETMISC (overlay, tail); |
58401a34 SM |
394 | |
395 | start = OVERLAY_START (overlay); | |
396 | startpos = OVERLAY_POSITION (start); | |
397 | if (pos < startpos) | |
398 | break; | |
399 | end = OVERLAY_END (overlay); | |
400 | endpos = OVERLAY_POSITION (end); | |
401 | if (pos <= endpos) | |
402 | { | |
403 | if (idx < len) | |
404 | vec[idx] = overlay; | |
405 | idx++; | |
406 | } | |
407 | } | |
408 | ||
409 | return idx; | |
410 | } | |
411 | ||
412 | /* Return the value of property PROP, in OBJECT at POSITION. | |
413 | It's the value of PROP that a char inserted at POSITION would get. | |
414 | OBJECT is optional and defaults to the current buffer. | |
415 | If OBJECT is a buffer, then overlay properties are considered as well as | |
416 | text properties. | |
417 | If OBJECT is a window, then that window's buffer is used, but | |
418 | window-specific overlays are considered only if they are associated | |
419 | with OBJECT. */ | |
538f9462 | 420 | Lisp_Object |
58401a34 SM |
421 | get_pos_property (position, prop, object) |
422 | Lisp_Object position, object; | |
423 | register Lisp_Object prop; | |
424 | { | |
58401a34 SM |
425 | CHECK_NUMBER_COERCE_MARKER (position); |
426 | ||
427 | if (NILP (object)) | |
428 | XSETBUFFER (object, current_buffer); | |
dfe6cbf8 SM |
429 | else if (WINDOWP (object)) |
430 | object = XWINDOW (object)->buffer; | |
431 | ||
432 | if (!BUFFERP (object)) | |
433 | /* pos-property only makes sense in buffers right now, since strings | |
434 | have no overlays and no notion of insertion for which stickiness | |
435 | could be obeyed. */ | |
436 | return Fget_text_property (position, prop, object); | |
437 | else | |
58401a34 SM |
438 | { |
439 | int posn = XINT (position); | |
440 | int noverlays; | |
441 | Lisp_Object *overlay_vec, tem; | |
442 | struct buffer *obuf = current_buffer; | |
443 | ||
444 | set_buffer_temp (XBUFFER (object)); | |
445 | ||
446 | /* First try with room for 40 overlays. */ | |
447 | noverlays = 40; | |
448 | overlay_vec = (Lisp_Object *) alloca (noverlays * sizeof (Lisp_Object)); | |
449 | noverlays = overlays_around (posn, overlay_vec, noverlays); | |
450 | ||
451 | /* If there are more than 40, | |
452 | make enough space for all, and try again. */ | |
453 | if (noverlays > 40) | |
454 | { | |
455 | overlay_vec = (Lisp_Object *) alloca (noverlays * sizeof (Lisp_Object)); | |
456 | noverlays = overlays_around (posn, overlay_vec, noverlays); | |
457 | } | |
458 | noverlays = sort_overlays (overlay_vec, noverlays, NULL); | |
459 | ||
460 | set_buffer_temp (obuf); | |
461 | ||
462 | /* Now check the overlays in order of decreasing priority. */ | |
463 | while (--noverlays >= 0) | |
464 | { | |
465 | Lisp_Object ol = overlay_vec[noverlays]; | |
466 | tem = Foverlay_get (ol, prop); | |
467 | if (!NILP (tem)) | |
468 | { | |
469 | /* Check the overlay is indeed active at point. */ | |
470 | Lisp_Object start = OVERLAY_START (ol), finish = OVERLAY_END (ol); | |
471 | if ((OVERLAY_POSITION (start) == posn | |
472 | && XMARKER (start)->insertion_type == 1) | |
473 | || (OVERLAY_POSITION (finish) == posn | |
474 | && XMARKER (finish)->insertion_type == 0)) | |
475 | ; /* The overlay will not cover a char inserted at point. */ | |
476 | else | |
477 | { | |
478 | return tem; | |
479 | } | |
480 | } | |
481 | } | |
177c0ea7 | 482 | |
7a6a86ad | 483 | { /* Now check the text properties. */ |
dfe6cbf8 SM |
484 | int stickiness = text_property_stickiness (prop, position, object); |
485 | if (stickiness > 0) | |
486 | return Fget_text_property (position, prop, object); | |
487 | else if (stickiness < 0 | |
488 | && XINT (position) > BUF_BEGV (XBUFFER (object))) | |
489 | return Fget_text_property (make_number (XINT (position) - 1), | |
490 | prop, object); | |
491 | else | |
492 | return Qnil; | |
493 | } | |
58401a34 | 494 | } |
58401a34 SM |
495 | } |
496 | ||
a3caef99 | 497 | /* Find the field surrounding POS in *BEG and *END. If POS is nil, |
59062dce | 498 | the value of point is used instead. If BEG or END is null, |
acb7cc89 | 499 | means don't store the beginning or end of the field. |
a3caef99 | 500 | |
9ac741c5 MB |
501 | BEG_LIMIT and END_LIMIT serve to limit the ranged of the returned |
502 | results; they do not effect boundary behavior. | |
503 | ||
a3caef99 | 504 | If MERGE_AT_BOUNDARY is nonzero, then if POS is at the very first |
ee547125 MB |
505 | position of a field, then the beginning of the previous field is |
506 | returned instead of the beginning of POS's field (since the end of a | |
507 | field is actually also the beginning of the next input field, this | |
508 | behavior is sometimes useful). Additionally in the MERGE_AT_BOUNDARY | |
509 | true case, if two fields are separated by a field with the special | |
510 | value `boundary', and POS lies within it, then the two separated | |
511 | fields are considered to be adjacent, and POS between them, when | |
512 | finding the beginning and ending of the "merged" field. | |
a3caef99 RS |
513 | |
514 | Either BEG or END may be 0, in which case the corresponding value | |
515 | is not stored. */ | |
516 | ||
acb7cc89 | 517 | static void |
9ac741c5 | 518 | find_field (pos, merge_at_boundary, beg_limit, beg, end_limit, end) |
0daf6e8d GM |
519 | Lisp_Object pos; |
520 | Lisp_Object merge_at_boundary; | |
9ac741c5 | 521 | Lisp_Object beg_limit, end_limit; |
0daf6e8d GM |
522 | int *beg, *end; |
523 | { | |
ee547125 MB |
524 | /* Fields right before and after the point. */ |
525 | Lisp_Object before_field, after_field; | |
a3caef99 RS |
526 | /* 1 if POS counts as the start of a field. */ |
527 | int at_field_start = 0; | |
528 | /* 1 if POS counts as the end of a field. */ | |
529 | int at_field_end = 0; | |
ee547125 | 530 | |
0daf6e8d GM |
531 | if (NILP (pos)) |
532 | XSETFASTINT (pos, PT); | |
533 | else | |
b7826503 | 534 | CHECK_NUMBER_COERCE_MARKER (pos); |
0daf6e8d | 535 | |
acb7cc89 | 536 | after_field |
58401a34 | 537 | = get_char_property_and_overlay (pos, Qfield, Qnil, NULL); |
acb7cc89 GM |
538 | before_field |
539 | = (XFASTINT (pos) > BEGV | |
7ae1c032 | 540 | ? get_char_property_and_overlay (make_number (XINT (pos) - 1), |
58401a34 | 541 | Qfield, Qnil, NULL) |
e477bb04 KL |
542 | /* Using nil here would be a more obvious choice, but it would |
543 | fail when the buffer starts with a non-sticky field. */ | |
544 | : after_field); | |
ee547125 MB |
545 | |
546 | /* See if we need to handle the case where MERGE_AT_BOUNDARY is nil | |
547 | and POS is at beginning of a field, which can also be interpreted | |
548 | as the end of the previous field. Note that the case where if | |
549 | MERGE_AT_BOUNDARY is non-nil (see function comment) is actually the | |
550 | more natural one; then we avoid treating the beginning of a field | |
551 | specially. */ | |
58401a34 | 552 | if (NILP (merge_at_boundary)) |
ee547125 | 553 | { |
58401a34 SM |
554 | Lisp_Object field = get_pos_property (pos, Qfield, Qnil); |
555 | if (!EQ (field, after_field)) | |
ee547125 | 556 | at_field_end = 1; |
58401a34 SM |
557 | if (!EQ (field, before_field)) |
558 | at_field_start = 1; | |
2db1186a SM |
559 | if (NILP (field) && at_field_start && at_field_end) |
560 | /* If an inserted char would have a nil field while the surrounding | |
561 | text is non-nil, we're probably not looking at a | |
562 | zero-length field, but instead at a non-nil field that's | |
563 | not intended for editing (such as comint's prompts). */ | |
564 | at_field_end = at_field_start = 0; | |
0daf6e8d GM |
565 | } |
566 | ||
ee547125 MB |
567 | /* Note about special `boundary' fields: |
568 | ||
569 | Consider the case where the point (`.') is between the fields `x' and `y': | |
570 | ||
571 | xxxx.yyyy | |
572 | ||
573 | In this situation, if merge_at_boundary is true, we consider the | |
574 | `x' and `y' fields as forming one big merged field, and so the end | |
575 | of the field is the end of `y'. | |
576 | ||
577 | However, if `x' and `y' are separated by a special `boundary' field | |
578 | (a field with a `field' char-property of 'boundary), then we ignore | |
579 | this special field when merging adjacent fields. Here's the same | |
580 | situation, but with a `boundary' field between the `x' and `y' fields: | |
581 | ||
582 | xxx.BBBByyyy | |
583 | ||
584 | Here, if point is at the end of `x', the beginning of `y', or | |
585 | anywhere in-between (within the `boundary' field), we merge all | |
586 | three fields and consider the beginning as being the beginning of | |
587 | the `x' field, and the end as being the end of the `y' field. */ | |
588 | ||
0daf6e8d | 589 | if (beg) |
acb7cc89 GM |
590 | { |
591 | if (at_field_start) | |
592 | /* POS is at the edge of a field, and we should consider it as | |
593 | the beginning of the following field. */ | |
594 | *beg = XFASTINT (pos); | |
595 | else | |
596 | /* Find the previous field boundary. */ | |
597 | { | |
58401a34 | 598 | Lisp_Object p = pos; |
acb7cc89 GM |
599 | if (!NILP (merge_at_boundary) && EQ (before_field, Qboundary)) |
600 | /* Skip a `boundary' field. */ | |
58401a34 | 601 | p = Fprevious_single_char_property_change (p, Qfield, Qnil, |
9ac741c5 | 602 | beg_limit); |
58401a34 SM |
603 | |
604 | p = Fprevious_single_char_property_change (p, Qfield, Qnil, | |
605 | beg_limit); | |
606 | *beg = NILP (p) ? BEGV : XFASTINT (p); | |
acb7cc89 GM |
607 | } |
608 | } | |
0daf6e8d GM |
609 | |
610 | if (end) | |
acb7cc89 GM |
611 | { |
612 | if (at_field_end) | |
613 | /* POS is at the edge of a field, and we should consider it as | |
614 | the end of the previous field. */ | |
615 | *end = XFASTINT (pos); | |
616 | else | |
617 | /* Find the next field boundary. */ | |
618 | { | |
619 | if (!NILP (merge_at_boundary) && EQ (after_field, Qboundary)) | |
620 | /* Skip a `boundary' field. */ | |
9ac741c5 MB |
621 | pos = Fnext_single_char_property_change (pos, Qfield, Qnil, |
622 | end_limit); | |
ee547125 | 623 | |
9ac741c5 MB |
624 | pos = Fnext_single_char_property_change (pos, Qfield, Qnil, |
625 | end_limit); | |
acb7cc89 GM |
626 | *end = NILP (pos) ? ZV : XFASTINT (pos); |
627 | } | |
628 | } | |
0daf6e8d | 629 | } |
acb7cc89 | 630 | |
0daf6e8d | 631 | \f |
d01f3570 | 632 | DEFUN ("delete-field", Fdelete_field, Sdelete_field, 0, 1, 0, |
7ee72033 | 633 | doc: /* Delete the field surrounding POS. |
a1f17501 | 634 | A field is a region of text with the same `field' property. |
f554db0f | 635 | If POS is nil, the value of point is used for POS. */) |
7ee72033 | 636 | (pos) |
0daf6e8d GM |
637 | Lisp_Object pos; |
638 | { | |
639 | int beg, end; | |
9ac741c5 | 640 | find_field (pos, Qnil, Qnil, &beg, Qnil, &end); |
0daf6e8d GM |
641 | if (beg != end) |
642 | del_range (beg, end); | |
d01f3570 | 643 | return Qnil; |
0daf6e8d GM |
644 | } |
645 | ||
646 | DEFUN ("field-string", Ffield_string, Sfield_string, 0, 1, 0, | |
7ee72033 | 647 | doc: /* Return the contents of the field surrounding POS as a string. |
a1f17501 | 648 | A field is a region of text with the same `field' property. |
f554db0f | 649 | If POS is nil, the value of point is used for POS. */) |
7ee72033 | 650 | (pos) |
0daf6e8d GM |
651 | Lisp_Object pos; |
652 | { | |
653 | int beg, end; | |
9ac741c5 | 654 | find_field (pos, Qnil, Qnil, &beg, Qnil, &end); |
0daf6e8d GM |
655 | return make_buffer_string (beg, end, 1); |
656 | } | |
657 | ||
658 | DEFUN ("field-string-no-properties", Ffield_string_no_properties, Sfield_string_no_properties, 0, 1, 0, | |
7a6a86ad | 659 | doc: /* Return the contents of the field around POS, without text properties. |
a1f17501 | 660 | A field is a region of text with the same `field' property. |
f554db0f | 661 | If POS is nil, the value of point is used for POS. */) |
7ee72033 | 662 | (pos) |
0daf6e8d GM |
663 | Lisp_Object pos; |
664 | { | |
665 | int beg, end; | |
9ac741c5 | 666 | find_field (pos, Qnil, Qnil, &beg, Qnil, &end); |
0daf6e8d GM |
667 | return make_buffer_string (beg, end, 0); |
668 | } | |
669 | ||
9ac741c5 | 670 | DEFUN ("field-beginning", Ffield_beginning, Sfield_beginning, 0, 3, 0, |
7ee72033 | 671 | doc: /* Return the beginning of the field surrounding POS. |
a1f17501 PJ |
672 | A field is a region of text with the same `field' property. |
673 | If POS is nil, the value of point is used for POS. | |
674 | If ESCAPE-FROM-EDGE is non-nil and POS is at the beginning of its | |
9ac741c5 MB |
675 | field, then the beginning of the *previous* field is returned. |
676 | If LIMIT is non-nil, it is a buffer position; if the beginning of the field | |
f554db0f | 677 | is before LIMIT, then LIMIT will be returned instead. */) |
9ac741c5 MB |
678 | (pos, escape_from_edge, limit) |
679 | Lisp_Object pos, escape_from_edge, limit; | |
0daf6e8d GM |
680 | { |
681 | int beg; | |
9ac741c5 | 682 | find_field (pos, escape_from_edge, limit, &beg, Qnil, 0); |
0daf6e8d GM |
683 | return make_number (beg); |
684 | } | |
685 | ||
9ac741c5 | 686 | DEFUN ("field-end", Ffield_end, Sfield_end, 0, 3, 0, |
7ee72033 | 687 | doc: /* Return the end of the field surrounding POS. |
a1f17501 PJ |
688 | A field is a region of text with the same `field' property. |
689 | If POS is nil, the value of point is used for POS. | |
690 | If ESCAPE-FROM-EDGE is non-nil and POS is at the end of its field, | |
9ac741c5 MB |
691 | then the end of the *following* field is returned. |
692 | If LIMIT is non-nil, it is a buffer position; if the end of the field | |
f554db0f | 693 | is after LIMIT, then LIMIT will be returned instead. */) |
9ac741c5 MB |
694 | (pos, escape_from_edge, limit) |
695 | Lisp_Object pos, escape_from_edge, limit; | |
0daf6e8d GM |
696 | { |
697 | int end; | |
9ac741c5 | 698 | find_field (pos, escape_from_edge, Qnil, 0, limit, &end); |
0daf6e8d GM |
699 | return make_number (end); |
700 | } | |
701 | ||
ee547125 | 702 | DEFUN ("constrain-to-field", Fconstrain_to_field, Sconstrain_to_field, 2, 5, 0, |
7ee72033 | 703 | doc: /* Return the position closest to NEW-POS that is in the same field as OLD-POS. |
a1f17501 PJ |
704 | |
705 | A field is a region of text with the same `field' property. | |
706 | If NEW-POS is nil, then the current point is used instead, and set to the | |
707 | constrained position if that is different. | |
708 | ||
709 | If OLD-POS is at the boundary of two fields, then the allowable | |
710 | positions for NEW-POS depends on the value of the optional argument | |
711 | ESCAPE-FROM-EDGE: If ESCAPE-FROM-EDGE is nil, then NEW-POS is | |
712 | constrained to the field that has the same `field' char-property | |
713 | as any new characters inserted at OLD-POS, whereas if ESCAPE-FROM-EDGE | |
714 | is non-nil, NEW-POS is constrained to the union of the two adjacent | |
715 | fields. Additionally, if two fields are separated by another field with | |
716 | the special value `boundary', then any point within this special field is | |
717 | also considered to be `on the boundary'. | |
718 | ||
719 | If the optional argument ONLY-IN-LINE is non-nil and constraining | |
720 | NEW-POS would move it to a different line, NEW-POS is returned | |
721 | unconstrained. This useful for commands that move by line, like | |
722 | \\[next-line] or \\[beginning-of-line], which should generally respect field boundaries | |
723 | only in the case where they can still move to the right line. | |
724 | ||
725 | If the optional argument INHIBIT-CAPTURE-PROPERTY is non-nil, and OLD-POS has | |
726 | a non-nil property of that name, then any field boundaries are ignored. | |
727 | ||
7ee72033 MB |
728 | Field boundaries are not noticed if `inhibit-field-text-motion' is non-nil. */) |
729 | (new_pos, old_pos, escape_from_edge, only_in_line, inhibit_capture_property) | |
ee547125 MB |
730 | Lisp_Object new_pos, old_pos; |
731 | Lisp_Object escape_from_edge, only_in_line, inhibit_capture_property; | |
0daf6e8d GM |
732 | { |
733 | /* If non-zero, then the original point, before re-positioning. */ | |
734 | int orig_point = 0; | |
d63b4018 KR |
735 | int fwd; |
736 | Lisp_Object prev_old, prev_new; | |
aac18aa4 | 737 | |
0daf6e8d GM |
738 | if (NILP (new_pos)) |
739 | /* Use the current point, and afterwards, set it. */ | |
740 | { | |
741 | orig_point = PT; | |
742 | XSETFASTINT (new_pos, PT); | |
743 | } | |
744 | ||
e477bb04 KL |
745 | CHECK_NUMBER_COERCE_MARKER (new_pos); |
746 | CHECK_NUMBER_COERCE_MARKER (old_pos); | |
747 | ||
748 | fwd = (XFASTINT (new_pos) > XFASTINT (old_pos)); | |
749 | ||
750 | prev_old = make_number (XFASTINT (old_pos) - 1); | |
751 | prev_new = make_number (XFASTINT (new_pos) - 1); | |
aac18aa4 | 752 | |
ee5cd4db GM |
753 | if (NILP (Vinhibit_field_text_motion) |
754 | && !EQ (new_pos, old_pos) | |
42ab8e36 MB |
755 | && (!NILP (Fget_char_property (new_pos, Qfield, Qnil)) |
756 | || !NILP (Fget_char_property (old_pos, Qfield, Qnil)) | |
e477bb04 KL |
757 | /* To recognize field boundaries, we must also look at the |
758 | previous positions; we could use `get_pos_property' | |
759 | instead, but in itself that would fail inside non-sticky | |
760 | fields (like comint prompts). */ | |
761 | || (XFASTINT (new_pos) > BEGV | |
42ab8e36 | 762 | && !NILP (Fget_char_property (prev_new, Qfield, Qnil))) |
e477bb04 | 763 | || (XFASTINT (old_pos) > BEGV |
42ab8e36 | 764 | && !NILP (Fget_char_property (prev_old, Qfield, Qnil)))) |
ee547125 | 765 | && (NILP (inhibit_capture_property) |
e477bb04 KL |
766 | /* Field boundaries are again a problem; but now we must |
767 | decide the case exactly, so we need to call | |
768 | `get_pos_property' as well. */ | |
769 | || (NILP (get_pos_property (old_pos, inhibit_capture_property, Qnil)) | |
770 | && (XFASTINT (old_pos) <= BEGV | |
42ab8e36 MB |
771 | || NILP (Fget_char_property (old_pos, inhibit_capture_property, Qnil)) |
772 | || NILP (Fget_char_property (prev_old, inhibit_capture_property, Qnil)))))) | |
2cb3aec4 KL |
773 | /* It is possible that NEW_POS is not within the same field as |
774 | OLD_POS; try to move NEW_POS so that it is. */ | |
0daf6e8d | 775 | { |
e477bb04 | 776 | int shortage; |
0daf6e8d GM |
777 | Lisp_Object field_bound; |
778 | ||
0daf6e8d | 779 | if (fwd) |
9ac741c5 | 780 | field_bound = Ffield_end (old_pos, escape_from_edge, new_pos); |
0daf6e8d | 781 | else |
9ac741c5 | 782 | field_bound = Ffield_beginning (old_pos, escape_from_edge, new_pos); |
0daf6e8d | 783 | |
10b0f752 MB |
784 | if (/* See if ESCAPE_FROM_EDGE caused FIELD_BOUND to jump to the |
785 | other side of NEW_POS, which would mean that NEW_POS is | |
786 | already acceptable, and it's not necessary to constrain it | |
787 | to FIELD_BOUND. */ | |
788 | ((XFASTINT (field_bound) < XFASTINT (new_pos)) ? fwd : !fwd) | |
789 | /* NEW_POS should be constrained, but only if either | |
790 | ONLY_IN_LINE is nil (in which case any constraint is OK), | |
791 | or NEW_POS and FIELD_BOUND are on the same line (in which | |
792 | case the constraint is OK even if ONLY_IN_LINE is non-nil). */ | |
793 | && (NILP (only_in_line) | |
794 | /* This is the ONLY_IN_LINE case, check that NEW_POS and | |
795 | FIELD_BOUND are on the same line by seeing whether | |
796 | there's an intervening newline or not. */ | |
797 | || (scan_buffer ('\n', | |
798 | XFASTINT (new_pos), XFASTINT (field_bound), | |
799 | fwd ? -1 : 1, &shortage, 1), | |
800 | shortage != 0))) | |
0daf6e8d GM |
801 | /* Constrain NEW_POS to FIELD_BOUND. */ |
802 | new_pos = field_bound; | |
803 | ||
804 | if (orig_point && XFASTINT (new_pos) != orig_point) | |
805 | /* The NEW_POS argument was originally nil, so automatically set PT. */ | |
806 | SET_PT (XFASTINT (new_pos)); | |
807 | } | |
808 | ||
809 | return new_pos; | |
810 | } | |
acb7cc89 | 811 | |
0daf6e8d | 812 | \f |
6d57c318 MB |
813 | DEFUN ("line-beginning-position", |
814 | Fline_beginning_position, Sline_beginning_position, 0, 1, 0, | |
7ee72033 | 815 | doc: /* Return the character position of the first character on the current line. |
a1f17501 PJ |
816 | With argument N not nil or 1, move forward N - 1 lines first. |
817 | If scan reaches end of buffer, return that position. | |
6d57c318 | 818 | |
2cb3aec4 KL |
819 | This function constrains the returned position to the current field |
820 | unless that would be on a different line than the original, | |
821 | unconstrained result. If N is nil or 1, and a front-sticky field | |
822 | starts at point, the scan stops as soon as it starts. To ignore field | |
6d57c318 | 823 | boundaries bind `inhibit-field-text-motion' to t. |
a1f17501 | 824 | |
7ee72033 MB |
825 | This function does not move point. */) |
826 | (n) | |
c9ed721d RS |
827 | Lisp_Object n; |
828 | { | |
acb7cc89 | 829 | int orig, orig_byte, end; |
4e8f005c CY |
830 | int count = SPECPDL_INDEX (); |
831 | specbind (Qinhibit_point_motion_hooks, Qt); | |
c9ed721d RS |
832 | |
833 | if (NILP (n)) | |
834 | XSETFASTINT (n, 1); | |
835 | else | |
b7826503 | 836 | CHECK_NUMBER (n); |
c9ed721d RS |
837 | |
838 | orig = PT; | |
ec1c14f6 | 839 | orig_byte = PT_BYTE; |
c9ed721d RS |
840 | Fforward_line (make_number (XINT (n) - 1)); |
841 | end = PT; | |
e2dae3f2 | 842 | |
ec1c14f6 | 843 | SET_PT_BOTH (orig, orig_byte); |
35692fe0 | 844 | |
4e8f005c CY |
845 | unbind_to (count, Qnil); |
846 | ||
0daf6e8d | 847 | /* Return END constrained to the current input field. */ |
ee5cd4db GM |
848 | return Fconstrain_to_field (make_number (end), make_number (orig), |
849 | XINT (n) != 1 ? Qt : Qnil, | |
ee547125 | 850 | Qt, Qnil); |
c9ed721d RS |
851 | } |
852 | ||
6d57c318 | 853 | DEFUN ("line-end-position", Fline_end_position, Sline_end_position, 0, 1, 0, |
7ee72033 | 854 | doc: /* Return the character position of the last character on the current line. |
a1f17501 PJ |
855 | With argument N not nil or 1, move forward N - 1 lines first. |
856 | If scan reaches end of buffer, return that position. | |
6d57c318 | 857 | |
2cb3aec4 KL |
858 | This function constrains the returned position to the current field |
859 | unless that would be on a different line than the original, | |
860 | unconstrained result. If N is nil or 1, and a rear-sticky field ends | |
861 | at point, the scan stops as soon as it starts. To ignore field | |
6d57c318 MB |
862 | boundaries bind `inhibit-field-text-motion' to t. |
863 | ||
7ee72033 MB |
864 | This function does not move point. */) |
865 | (n) | |
c9ed721d RS |
866 | Lisp_Object n; |
867 | { | |
0daf6e8d | 868 | int end_pos; |
acb7cc89 | 869 | int orig = PT; |
0daf6e8d | 870 | |
c9ed721d RS |
871 | if (NILP (n)) |
872 | XSETFASTINT (n, 1); | |
873 | else | |
b7826503 | 874 | CHECK_NUMBER (n); |
c9ed721d | 875 | |
0daf6e8d GM |
876 | end_pos = find_before_next_newline (orig, 0, XINT (n) - (XINT (n) <= 0)); |
877 | ||
878 | /* Return END_POS constrained to the current input field. */ | |
ee5cd4db | 879 | return Fconstrain_to_field (make_number (end_pos), make_number (orig), |
ee547125 | 880 | Qnil, Qt, Qnil); |
c9ed721d | 881 | } |
6d57c318 | 882 | |
c9ed721d | 883 | \f |
35692fe0 JB |
884 | Lisp_Object |
885 | save_excursion_save () | |
886 | { | |
acb7cc89 GM |
887 | int visible = (XBUFFER (XWINDOW (selected_window)->buffer) |
888 | == current_buffer); | |
35692fe0 JB |
889 | |
890 | return Fcons (Fpoint_marker (), | |
aea4a109 | 891 | Fcons (Fcopy_marker (current_buffer->mark, Qnil), |
9772455e | 892 | Fcons (visible ? Qt : Qnil, |
2483cf58 GM |
893 | Fcons (current_buffer->mark_active, |
894 | selected_window)))); | |
35692fe0 JB |
895 | } |
896 | ||
897 | Lisp_Object | |
898 | save_excursion_restore (info) | |
4ad8681a | 899 | Lisp_Object info; |
35692fe0 | 900 | { |
4ad8681a RS |
901 | Lisp_Object tem, tem1, omark, nmark; |
902 | struct gcpro gcpro1, gcpro2, gcpro3; | |
2483cf58 | 903 | int visible_p; |
35692fe0 | 904 | |
2483cf58 | 905 | tem = Fmarker_buffer (XCAR (info)); |
35692fe0 JB |
906 | /* If buffer being returned to is now deleted, avoid error */ |
907 | /* Otherwise could get error here while unwinding to top level | |
908 | and crash */ | |
909 | /* In that case, Fmarker_buffer returns nil now. */ | |
56a98455 | 910 | if (NILP (tem)) |
35692fe0 | 911 | return Qnil; |
4ad8681a RS |
912 | |
913 | omark = nmark = Qnil; | |
914 | GCPRO3 (info, omark, nmark); | |
915 | ||
35692fe0 | 916 | Fset_buffer (tem); |
2483cf58 GM |
917 | |
918 | /* Point marker. */ | |
919 | tem = XCAR (info); | |
35692fe0 | 920 | Fgoto_char (tem); |
12038f9f | 921 | unchain_marker (XMARKER (tem)); |
2483cf58 GM |
922 | |
923 | /* Mark marker. */ | |
924 | info = XCDR (info); | |
925 | tem = XCAR (info); | |
03d18690 | 926 | omark = Fmarker_position (current_buffer->mark); |
35692fe0 | 927 | Fset_marker (current_buffer->mark, tem, Fcurrent_buffer ()); |
03d18690 | 928 | nmark = Fmarker_position (tem); |
12038f9f | 929 | unchain_marker (XMARKER (tem)); |
2483cf58 GM |
930 | |
931 | /* visible */ | |
932 | info = XCDR (info); | |
933 | visible_p = !NILP (XCAR (info)); | |
177c0ea7 | 934 | |
ef580991 RS |
935 | #if 0 /* We used to make the current buffer visible in the selected window |
936 | if that was true previously. That avoids some anomalies. | |
937 | But it creates others, and it wasn't documented, and it is simpler | |
938 | and cleaner never to alter the window/buffer connections. */ | |
9772455e RS |
939 | tem1 = Fcar (tem); |
940 | if (!NILP (tem1) | |
0e2c9c70 | 941 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) |
35692fe0 | 942 | Fswitch_to_buffer (Fcurrent_buffer (), Qnil); |
ef580991 | 943 | #endif /* 0 */ |
9772455e | 944 | |
2483cf58 GM |
945 | /* Mark active */ |
946 | info = XCDR (info); | |
947 | tem = XCAR (info); | |
9772455e | 948 | tem1 = current_buffer->mark_active; |
2483cf58 GM |
949 | current_buffer->mark_active = tem; |
950 | ||
9fed2b18 RS |
951 | if (!NILP (Vrun_hooks)) |
952 | { | |
03d18690 RS |
953 | /* If mark is active now, and either was not active |
954 | or was at a different place, run the activate hook. */ | |
9fed2b18 | 955 | if (! NILP (current_buffer->mark_active)) |
03d18690 RS |
956 | { |
957 | if (! EQ (omark, nmark)) | |
958 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
959 | } | |
960 | /* If mark has ceased to be active, run deactivate hook. */ | |
9fed2b18 RS |
961 | else if (! NILP (tem1)) |
962 | call1 (Vrun_hooks, intern ("deactivate-mark-hook")); | |
963 | } | |
2483cf58 GM |
964 | |
965 | /* If buffer was visible in a window, and a different window was | |
793cd2c8 GM |
966 | selected, and the old selected window is still showing this |
967 | buffer, restore point in that window. */ | |
2483cf58 GM |
968 | tem = XCDR (info); |
969 | if (visible_p | |
970 | && !EQ (tem, selected_window) | |
ba973f7a GM |
971 | && (tem1 = XWINDOW (tem)->buffer, |
972 | (/* Window is live... */ | |
973 | BUFFERP (tem1) | |
974 | /* ...and it shows the current buffer. */ | |
975 | && XBUFFER (tem1) == current_buffer))) | |
2483cf58 GM |
976 | Fset_window_point (tem, make_number (PT)); |
977 | ||
4ad8681a | 978 | UNGCPRO; |
35692fe0 JB |
979 | return Qnil; |
980 | } | |
981 | ||
982 | DEFUN ("save-excursion", Fsave_excursion, Ssave_excursion, 0, UNEVALLED, 0, | |
7ee72033 | 983 | doc: /* Save point, mark, and current buffer; execute BODY; restore those things. |
a1f17501 PJ |
984 | Executes BODY just like `progn'. |
985 | The values of point, mark and the current buffer are restored | |
986 | even in case of abnormal exit (throw or error). | |
987 | The state of activation of the mark is also restored. | |
988 | ||
989 | This construct does not save `deactivate-mark', and therefore | |
990 | functions that change the buffer will still cause deactivation | |
991 | of the mark at the end of the command. To prevent that, bind | |
33c2d29f MB |
992 | `deactivate-mark' with `let'. |
993 | ||
994 | usage: (save-excursion &rest BODY) */) | |
7ee72033 | 995 | (args) |
35692fe0 JB |
996 | Lisp_Object args; |
997 | { | |
998 | register Lisp_Object val; | |
aed13378 | 999 | int count = SPECPDL_INDEX (); |
35692fe0 JB |
1000 | |
1001 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
4bc8c7d2 RS |
1002 | |
1003 | val = Fprogn (args); | |
1004 | return unbind_to (count, val); | |
1005 | } | |
1006 | ||
1007 | DEFUN ("save-current-buffer", Fsave_current_buffer, Ssave_current_buffer, 0, UNEVALLED, 0, | |
7ee72033 | 1008 | doc: /* Save the current buffer; execute BODY; restore the current buffer. |
33c2d29f MB |
1009 | Executes BODY just like `progn'. |
1010 | usage: (save-current-buffer &rest BODY) */) | |
7ee72033 | 1011 | (args) |
4bc8c7d2 RS |
1012 | Lisp_Object args; |
1013 | { | |
acb7cc89 | 1014 | Lisp_Object val; |
aed13378 | 1015 | int count = SPECPDL_INDEX (); |
4bc8c7d2 | 1016 | |
cb5e5f74 | 1017 | record_unwind_protect (set_buffer_if_live, Fcurrent_buffer ()); |
4bc8c7d2 | 1018 | |
35692fe0 JB |
1019 | val = Fprogn (args); |
1020 | return unbind_to (count, val); | |
1021 | } | |
1022 | \f | |
95dccf75 | 1023 | DEFUN ("buffer-size", Fbufsize, Sbufsize, 0, 1, 0, |
7ee72033 MB |
1024 | doc: /* Return the number of characters in the current buffer. |
1025 | If BUFFER, return the number of characters in that buffer instead. */) | |
1026 | (buffer) | |
95dccf75 | 1027 | Lisp_Object buffer; |
35692fe0 | 1028 | { |
95dccf75 RS |
1029 | if (NILP (buffer)) |
1030 | return make_number (Z - BEG); | |
02050596 RS |
1031 | else |
1032 | { | |
b7826503 | 1033 | CHECK_BUFFER (buffer); |
02050596 RS |
1034 | return make_number (BUF_Z (XBUFFER (buffer)) |
1035 | - BUF_BEG (XBUFFER (buffer))); | |
1036 | } | |
35692fe0 JB |
1037 | } |
1038 | ||
1039 | DEFUN ("point-min", Fpoint_min, Spoint_min, 0, 0, 0, | |
7ee72033 MB |
1040 | doc: /* Return the minimum permissible value of point in the current buffer. |
1041 | This is 1, unless narrowing (a buffer restriction) is in effect. */) | |
1042 | () | |
35692fe0 JB |
1043 | { |
1044 | Lisp_Object temp; | |
55561c63 | 1045 | XSETFASTINT (temp, BEGV); |
35692fe0 JB |
1046 | return temp; |
1047 | } | |
1048 | ||
1049 | DEFUN ("point-min-marker", Fpoint_min_marker, Spoint_min_marker, 0, 0, 0, | |
7ee72033 MB |
1050 | doc: /* Return a marker to the minimum permissible value of point in this buffer. |
1051 | This is the beginning, unless narrowing (a buffer restriction) is in effect. */) | |
1052 | () | |
35692fe0 | 1053 | { |
ec1c14f6 | 1054 | return buildmark (BEGV, BEGV_BYTE); |
35692fe0 JB |
1055 | } |
1056 | ||
1057 | DEFUN ("point-max", Fpoint_max, Spoint_max, 0, 0, 0, | |
7ee72033 | 1058 | doc: /* Return the maximum permissible value of point in the current buffer. |
a1f17501 | 1059 | This is (1+ (buffer-size)), unless narrowing (a buffer restriction) |
7ee72033 MB |
1060 | is in effect, in which case it is less. */) |
1061 | () | |
35692fe0 JB |
1062 | { |
1063 | Lisp_Object temp; | |
55561c63 | 1064 | XSETFASTINT (temp, ZV); |
35692fe0 JB |
1065 | return temp; |
1066 | } | |
1067 | ||
1068 | DEFUN ("point-max-marker", Fpoint_max_marker, Spoint_max_marker, 0, 0, 0, | |
7ee72033 | 1069 | doc: /* Return a marker to the maximum permissible value of point in this buffer. |
a1f17501 | 1070 | This is (1+ (buffer-size)), unless narrowing (a buffer restriction) |
7ee72033 MB |
1071 | is in effect, in which case it is less. */) |
1072 | () | |
35692fe0 | 1073 | { |
ec1c14f6 | 1074 | return buildmark (ZV, ZV_BYTE); |
35692fe0 JB |
1075 | } |
1076 | ||
c86212b9 | 1077 | DEFUN ("gap-position", Fgap_position, Sgap_position, 0, 0, 0, |
7ee72033 MB |
1078 | doc: /* Return the position of the gap, in the current buffer. |
1079 | See also `gap-size'. */) | |
1080 | () | |
c86212b9 RS |
1081 | { |
1082 | Lisp_Object temp; | |
1083 | XSETFASTINT (temp, GPT); | |
1084 | return temp; | |
1085 | } | |
1086 | ||
1087 | DEFUN ("gap-size", Fgap_size, Sgap_size, 0, 0, 0, | |
7ee72033 MB |
1088 | doc: /* Return the size of the current buffer's gap. |
1089 | See also `gap-position'. */) | |
1090 | () | |
c86212b9 RS |
1091 | { |
1092 | Lisp_Object temp; | |
1093 | XSETFASTINT (temp, GAP_SIZE); | |
1094 | return temp; | |
1095 | } | |
1096 | ||
7df74da6 | 1097 | DEFUN ("position-bytes", Fposition_bytes, Sposition_bytes, 1, 1, 0, |
7ee72033 MB |
1098 | doc: /* Return the byte position for character position POSITION. |
1099 | If POSITION is out of range, the value is nil. */) | |
1100 | (position) | |
80e01f8d | 1101 | Lisp_Object position; |
7df74da6 | 1102 | { |
b7826503 | 1103 | CHECK_NUMBER_COERCE_MARKER (position); |
fcf9683e KH |
1104 | if (XINT (position) < BEG || XINT (position) > Z) |
1105 | return Qnil; | |
fa8a5a15 | 1106 | return make_number (CHAR_TO_BYTE (XINT (position))); |
7df74da6 | 1107 | } |
3ab0732d RS |
1108 | |
1109 | DEFUN ("byte-to-position", Fbyte_to_position, Sbyte_to_position, 1, 1, 0, | |
7ee72033 MB |
1110 | doc: /* Return the character position for byte position BYTEPOS. |
1111 | If BYTEPOS is out of range, the value is nil. */) | |
1112 | (bytepos) | |
3ab0732d RS |
1113 | Lisp_Object bytepos; |
1114 | { | |
b7826503 | 1115 | CHECK_NUMBER (bytepos); |
fcf9683e KH |
1116 | if (XINT (bytepos) < BEG_BYTE || XINT (bytepos) > Z_BYTE) |
1117 | return Qnil; | |
3ab0732d RS |
1118 | return make_number (BYTE_TO_CHAR (XINT (bytepos))); |
1119 | } | |
7df74da6 | 1120 | \f |
850a8179 | 1121 | DEFUN ("following-char", Ffollowing_char, Sfollowing_char, 0, 0, 0, |
7ee72033 MB |
1122 | doc: /* Return the character following point, as a number. |
1123 | At the end of the buffer or accessible region, return 0. */) | |
1124 | () | |
35692fe0 JB |
1125 | { |
1126 | Lisp_Object temp; | |
6ec8bbd2 | 1127 | if (PT >= ZV) |
55561c63 | 1128 | XSETFASTINT (temp, 0); |
850a8179 | 1129 | else |
ec1c14f6 | 1130 | XSETFASTINT (temp, FETCH_CHAR (PT_BYTE)); |
35692fe0 JB |
1131 | return temp; |
1132 | } | |
1133 | ||
850a8179 | 1134 | DEFUN ("preceding-char", Fprevious_char, Sprevious_char, 0, 0, 0, |
7ee72033 MB |
1135 | doc: /* Return the character preceding point, as a number. |
1136 | At the beginning of the buffer or accessible region, return 0. */) | |
1137 | () | |
35692fe0 JB |
1138 | { |
1139 | Lisp_Object temp; | |
6ec8bbd2 | 1140 | if (PT <= BEGV) |
55561c63 | 1141 | XSETFASTINT (temp, 0); |
fb8106e8 KH |
1142 | else if (!NILP (current_buffer->enable_multibyte_characters)) |
1143 | { | |
ec1c14f6 | 1144 | int pos = PT_BYTE; |
fb8106e8 KH |
1145 | DEC_POS (pos); |
1146 | XSETFASTINT (temp, FETCH_CHAR (pos)); | |
1147 | } | |
35692fe0 | 1148 | else |
ec1c14f6 | 1149 | XSETFASTINT (temp, FETCH_BYTE (PT_BYTE - 1)); |
35692fe0 JB |
1150 | return temp; |
1151 | } | |
1152 | ||
1153 | DEFUN ("bobp", Fbobp, Sbobp, 0, 0, 0, | |
7ee72033 MB |
1154 | doc: /* Return t if point is at the beginning of the buffer. |
1155 | If the buffer is narrowed, this means the beginning of the narrowed part. */) | |
1156 | () | |
35692fe0 | 1157 | { |
6ec8bbd2 | 1158 | if (PT == BEGV) |
35692fe0 JB |
1159 | return Qt; |
1160 | return Qnil; | |
1161 | } | |
1162 | ||
1163 | DEFUN ("eobp", Feobp, Seobp, 0, 0, 0, | |
7ee72033 MB |
1164 | doc: /* Return t if point is at the end of the buffer. |
1165 | If the buffer is narrowed, this means the end of the narrowed part. */) | |
1166 | () | |
35692fe0 | 1167 | { |
6ec8bbd2 | 1168 | if (PT == ZV) |
35692fe0 JB |
1169 | return Qt; |
1170 | return Qnil; | |
1171 | } | |
1172 | ||
1173 | DEFUN ("bolp", Fbolp, Sbolp, 0, 0, 0, | |
7ee72033 MB |
1174 | doc: /* Return t if point is at the beginning of a line. */) |
1175 | () | |
35692fe0 | 1176 | { |
ec1c14f6 | 1177 | if (PT == BEGV || FETCH_BYTE (PT_BYTE - 1) == '\n') |
35692fe0 JB |
1178 | return Qt; |
1179 | return Qnil; | |
1180 | } | |
1181 | ||
1182 | DEFUN ("eolp", Feolp, Seolp, 0, 0, 0, | |
7ee72033 MB |
1183 | doc: /* Return t if point is at the end of a line. |
1184 | `End of a line' includes point being at the end of the buffer. */) | |
1185 | () | |
35692fe0 | 1186 | { |
ec1c14f6 | 1187 | if (PT == ZV || FETCH_BYTE (PT_BYTE) == '\n') |
35692fe0 JB |
1188 | return Qt; |
1189 | return Qnil; | |
1190 | } | |
1191 | ||
fa1d3816 | 1192 | DEFUN ("char-after", Fchar_after, Schar_after, 0, 1, 0, |
7ee72033 | 1193 | doc: /* Return character in current buffer at position POS. |
f555f8cf | 1194 | POS is an integer or a marker and defaults to point. |
7ee72033 MB |
1195 | If POS is out of range, the value is nil. */) |
1196 | (pos) | |
35692fe0 JB |
1197 | Lisp_Object pos; |
1198 | { | |
ec1c14f6 | 1199 | register int pos_byte; |
35692fe0 | 1200 | |
fa1d3816 | 1201 | if (NILP (pos)) |
39a4c932 RS |
1202 | { |
1203 | pos_byte = PT_BYTE; | |
3c52e568 | 1204 | XSETFASTINT (pos, PT); |
39a4c932 RS |
1205 | } |
1206 | ||
1207 | if (MARKERP (pos)) | |
85cac557 RS |
1208 | { |
1209 | pos_byte = marker_byte_position (pos); | |
1210 | if (pos_byte < BEGV_BYTE || pos_byte >= ZV_BYTE) | |
1211 | return Qnil; | |
1212 | } | |
fa1d3816 RS |
1213 | else |
1214 | { | |
b7826503 | 1215 | CHECK_NUMBER_COERCE_MARKER (pos); |
b98ef0dc | 1216 | if (XINT (pos) < BEGV || XINT (pos) >= ZV) |
85cac557 | 1217 | return Qnil; |
34a7a267 | 1218 | |
ec1c14f6 | 1219 | pos_byte = CHAR_TO_BYTE (XINT (pos)); |
fa1d3816 | 1220 | } |
35692fe0 | 1221 | |
ec1c14f6 | 1222 | return make_number (FETCH_CHAR (pos_byte)); |
35692fe0 | 1223 | } |
fb8106e8 | 1224 | |
fa1d3816 | 1225 | DEFUN ("char-before", Fchar_before, Schar_before, 0, 1, 0, |
7ee72033 | 1226 | doc: /* Return character in current buffer preceding position POS. |
f555f8cf | 1227 | POS is an integer or a marker and defaults to point. |
7ee72033 MB |
1228 | If POS is out of range, the value is nil. */) |
1229 | (pos) | |
fb8106e8 KH |
1230 | Lisp_Object pos; |
1231 | { | |
1232 | register Lisp_Object val; | |
ec1c14f6 | 1233 | register int pos_byte; |
fb8106e8 | 1234 | |
fa1d3816 | 1235 | if (NILP (pos)) |
39a4c932 RS |
1236 | { |
1237 | pos_byte = PT_BYTE; | |
3c52e568 | 1238 | XSETFASTINT (pos, PT); |
39a4c932 RS |
1239 | } |
1240 | ||
1241 | if (MARKERP (pos)) | |
85cac557 RS |
1242 | { |
1243 | pos_byte = marker_byte_position (pos); | |
1244 | ||
1245 | if (pos_byte <= BEGV_BYTE || pos_byte > ZV_BYTE) | |
1246 | return Qnil; | |
1247 | } | |
fa1d3816 RS |
1248 | else |
1249 | { | |
b7826503 | 1250 | CHECK_NUMBER_COERCE_MARKER (pos); |
fb8106e8 | 1251 | |
b98ef0dc | 1252 | if (XINT (pos) <= BEGV || XINT (pos) > ZV) |
85cac557 RS |
1253 | return Qnil; |
1254 | ||
ec1c14f6 | 1255 | pos_byte = CHAR_TO_BYTE (XINT (pos)); |
fa1d3816 | 1256 | } |
fb8106e8 KH |
1257 | |
1258 | if (!NILP (current_buffer->enable_multibyte_characters)) | |
1259 | { | |
ec1c14f6 RS |
1260 | DEC_POS (pos_byte); |
1261 | XSETFASTINT (val, FETCH_CHAR (pos_byte)); | |
fb8106e8 KH |
1262 | } |
1263 | else | |
1264 | { | |
ec1c14f6 RS |
1265 | pos_byte--; |
1266 | XSETFASTINT (val, FETCH_BYTE (pos_byte)); | |
fb8106e8 KH |
1267 | } |
1268 | return val; | |
1269 | } | |
35692fe0 | 1270 | \f |
87485d6f | 1271 | DEFUN ("user-login-name", Fuser_login_name, Suser_login_name, 0, 1, 0, |
7ee72033 | 1272 | doc: /* Return the name under which the user logged in, as a string. |
a1f17501 | 1273 | This is based on the effective uid, not the real uid. |
412f1fab | 1274 | Also, if the environment variables LOGNAME or USER are set, |
a1f17501 PJ |
1275 | that determines the value of this function. |
1276 | ||
1277 | If optional argument UID is an integer, return the login name of the user | |
7ee72033 MB |
1278 | with that uid, or nil if there is no such user. */) |
1279 | (uid) | |
87485d6f | 1280 | Lisp_Object uid; |
35692fe0 | 1281 | { |
87485d6f MW |
1282 | struct passwd *pw; |
1283 | ||
f8a0e364 RS |
1284 | /* Set up the user name info if we didn't do it before. |
1285 | (That can happen if Emacs is dumpable | |
1286 | but you decide to run `temacs -l loadup' and not dump. */ | |
35b34f72 | 1287 | if (INTEGERP (Vuser_login_name)) |
f8a0e364 | 1288 | init_editfns (); |
87485d6f MW |
1289 | |
1290 | if (NILP (uid)) | |
35b34f72 | 1291 | return Vuser_login_name; |
87485d6f | 1292 | |
b7826503 | 1293 | CHECK_NUMBER (uid); |
b91834c3 | 1294 | BLOCK_INPUT; |
87485d6f | 1295 | pw = (struct passwd *) getpwuid (XINT (uid)); |
b91834c3 | 1296 | UNBLOCK_INPUT; |
87485d6f | 1297 | return (pw ? build_string (pw->pw_name) : Qnil); |
35692fe0 JB |
1298 | } |
1299 | ||
1300 | DEFUN ("user-real-login-name", Fuser_real_login_name, Suser_real_login_name, | |
deb8e082 | 1301 | 0, 0, 0, |
7ee72033 | 1302 | doc: /* Return the name of the user's real uid, as a string. |
a1f17501 | 1303 | This ignores the environment variables LOGNAME and USER, so it differs from |
7ee72033 MB |
1304 | `user-login-name' when running under `su'. */) |
1305 | () | |
35692fe0 | 1306 | { |
f8a0e364 RS |
1307 | /* Set up the user name info if we didn't do it before. |
1308 | (That can happen if Emacs is dumpable | |
1309 | but you decide to run `temacs -l loadup' and not dump. */ | |
35b34f72 | 1310 | if (INTEGERP (Vuser_login_name)) |
f8a0e364 | 1311 | init_editfns (); |
35b34f72 | 1312 | return Vuser_real_login_name; |
35692fe0 JB |
1313 | } |
1314 | ||
1315 | DEFUN ("user-uid", Fuser_uid, Suser_uid, 0, 0, 0, | |
7ee72033 MB |
1316 | doc: /* Return the effective uid of Emacs. |
1317 | Value is an integer or float, depending on the value. */) | |
1318 | () | |
35692fe0 | 1319 | { |
3aef3c0a EZ |
1320 | /* Assignment to EMACS_INT stops GCC whining about limited range of |
1321 | data type. */ | |
1322 | EMACS_INT euid = geteuid (); | |
1323 | return make_fixnum_or_float (euid); | |
35692fe0 JB |
1324 | } |
1325 | ||
1326 | DEFUN ("user-real-uid", Fuser_real_uid, Suser_real_uid, 0, 0, 0, | |
7ee72033 MB |
1327 | doc: /* Return the real uid of Emacs. |
1328 | Value is an integer or float, depending on the value. */) | |
1329 | () | |
35692fe0 | 1330 | { |
3aef3c0a EZ |
1331 | /* Assignment to EMACS_INT stops GCC whining about limited range of |
1332 | data type. */ | |
1333 | EMACS_INT uid = getuid (); | |
1334 | return make_fixnum_or_float (uid); | |
35692fe0 JB |
1335 | } |
1336 | ||
c9ed721d | 1337 | DEFUN ("user-full-name", Fuser_full_name, Suser_full_name, 0, 1, 0, |
7ee72033 | 1338 | doc: /* Return the full name of the user logged in, as a string. |
a1f17501 PJ |
1339 | If the full name corresponding to Emacs's userid is not known, |
1340 | return "unknown". | |
1341 | ||
1342 | If optional argument UID is an integer or float, return the full name | |
1343 | of the user with that uid, or nil if there is no such user. | |
1344 | If UID is a string, return the full name of the user with that login | |
7ee72033 MB |
1345 | name, or nil if there is no such user. */) |
1346 | (uid) | |
c9ed721d | 1347 | Lisp_Object uid; |
35692fe0 | 1348 | { |
c9ed721d | 1349 | struct passwd *pw; |
b0e92acd | 1350 | register unsigned char *p, *q; |
3415b0e9 | 1351 | Lisp_Object full; |
c9ed721d RS |
1352 | |
1353 | if (NILP (uid)) | |
34a7a267 | 1354 | return Vuser_full_name; |
3415b0e9 | 1355 | else if (NUMBERP (uid)) |
b91834c3 YM |
1356 | { |
1357 | BLOCK_INPUT; | |
1358 | pw = (struct passwd *) getpwuid ((uid_t) XFLOATINT (uid)); | |
1359 | UNBLOCK_INPUT; | |
1360 | } | |
34a7a267 | 1361 | else if (STRINGP (uid)) |
b91834c3 YM |
1362 | { |
1363 | BLOCK_INPUT; | |
1364 | pw = (struct passwd *) getpwnam (SDATA (uid)); | |
1365 | UNBLOCK_INPUT; | |
1366 | } | |
3415b0e9 RS |
1367 | else |
1368 | error ("Invalid UID specification"); | |
c9ed721d | 1369 | |
3415b0e9 | 1370 | if (!pw) |
3347526c | 1371 | return Qnil; |
34a7a267 | 1372 | |
6b0273cd | 1373 | p = (unsigned char *) pw->pw_gecos; |
3415b0e9 RS |
1374 | /* Chop off everything after the first comma. */ |
1375 | q = (unsigned char *) index (p, ','); | |
1376 | full = make_string (p, q ? q - p : strlen (p)); | |
34a7a267 | 1377 | |
3415b0e9 | 1378 | #ifdef AMPERSAND_FULL_NAME |
d5db4077 | 1379 | p = SDATA (full); |
3415b0e9 RS |
1380 | q = (unsigned char *) index (p, '&'); |
1381 | /* Substitute the login name for the &, upcasing the first character. */ | |
1382 | if (q) | |
1383 | { | |
b0e92acd | 1384 | register unsigned char *r; |
3415b0e9 RS |
1385 | Lisp_Object login; |
1386 | ||
1387 | login = Fuser_login_name (make_number (pw->pw_uid)); | |
d5db4077 | 1388 | r = (unsigned char *) alloca (strlen (p) + SCHARS (login) + 1); |
3415b0e9 RS |
1389 | bcopy (p, r, q - p); |
1390 | r[q - p] = 0; | |
d5db4077 | 1391 | strcat (r, SDATA (login)); |
3415b0e9 RS |
1392 | r[q - p] = UPCASE (r[q - p]); |
1393 | strcat (r, q + 1); | |
1394 | full = build_string (r); | |
1395 | } | |
1396 | #endif /* AMPERSAND_FULL_NAME */ | |
1397 | ||
1398 | return full; | |
35692fe0 JB |
1399 | } |
1400 | ||
1401 | DEFUN ("system-name", Fsystem_name, Ssystem_name, 0, 0, 0, | |
1a7e0117 | 1402 | doc: /* Return the host name of the machine you are running on, as a string. */) |
7ee72033 | 1403 | () |
35692fe0 JB |
1404 | { |
1405 | return Vsystem_name; | |
1406 | } | |
1407 | ||
ac988277 | 1408 | /* For the benefit of callers who don't want to include lisp.h */ |
acb7cc89 | 1409 | |
ac988277 KH |
1410 | char * |
1411 | get_system_name () | |
1412 | { | |
3d976a9a | 1413 | if (STRINGP (Vsystem_name)) |
d5db4077 | 1414 | return (char *) SDATA (Vsystem_name); |
3d976a9a RS |
1415 | else |
1416 | return ""; | |
ac988277 KH |
1417 | } |
1418 | ||
a15252fd ST |
1419 | char * |
1420 | get_operating_system_release() | |
1421 | { | |
1422 | if (STRINGP (Voperating_system_release)) | |
1423 | return (char *) SDATA (Voperating_system_release); | |
1424 | else | |
1425 | return ""; | |
1426 | } | |
1427 | ||
7fd233b3 | 1428 | DEFUN ("emacs-pid", Femacs_pid, Semacs_pid, 0, 0, 0, |
7ee72033 MB |
1429 | doc: /* Return the process ID of Emacs, as an integer. */) |
1430 | () | |
7fd233b3 RS |
1431 | { |
1432 | return make_number (getpid ()); | |
1433 | } | |
1434 | ||
d940e0e4 | 1435 | DEFUN ("current-time", Fcurrent_time, Scurrent_time, 0, 0, 0, |
7ee72033 | 1436 | doc: /* Return the current time, as the number of seconds since 1970-01-01 00:00:00. |
a1f17501 PJ |
1437 | The time is returned as a list of three integers. The first has the |
1438 | most significant 16 bits of the seconds, while the second has the | |
1439 | least significant 16 bits. The third integer gives the microsecond | |
1440 | count. | |
1441 | ||
1442 | The microsecond count is zero on systems that do not provide | |
7ee72033 MB |
1443 | resolution finer than a second. */) |
1444 | () | |
d940e0e4 | 1445 | { |
956ace37 | 1446 | EMACS_TIME t; |
956ace37 JB |
1447 | |
1448 | EMACS_GET_TIME (t); | |
799734b0 KS |
1449 | return list3 (make_number ((EMACS_SECS (t) >> 16) & 0xffff), |
1450 | make_number ((EMACS_SECS (t) >> 0) & 0xffff), | |
1451 | make_number (EMACS_USECS (t))); | |
d940e0e4 | 1452 | } |
4211ee7d EZ |
1453 | |
1454 | DEFUN ("get-internal-run-time", Fget_internal_run_time, Sget_internal_run_time, | |
1455 | 0, 0, 0, | |
1456 | doc: /* Return the current run time used by Emacs. | |
1457 | The time is returned as a list of three integers. The first has the | |
1458 | most significant 16 bits of the seconds, while the second has the | |
1459 | least significant 16 bits. The third integer gives the microsecond | |
1460 | count. | |
1461 | ||
9671c13a JB |
1462 | On systems that can't determine the run time, `get-internal-run-time' |
1463 | does the same thing as `current-time'. The microsecond count is zero | |
1464 | on systems that do not provide resolution finer than a second. */) | |
4211ee7d EZ |
1465 | () |
1466 | { | |
1467 | #ifdef HAVE_GETRUSAGE | |
1468 | struct rusage usage; | |
4211ee7d EZ |
1469 | int secs, usecs; |
1470 | ||
1471 | if (getrusage (RUSAGE_SELF, &usage) < 0) | |
1472 | /* This shouldn't happen. What action is appropriate? */ | |
8a0ff744 | 1473 | xsignal0 (Qerror); |
4211ee7d EZ |
1474 | |
1475 | /* Sum up user time and system time. */ | |
1476 | secs = usage.ru_utime.tv_sec + usage.ru_stime.tv_sec; | |
1477 | usecs = usage.ru_utime.tv_usec + usage.ru_stime.tv_usec; | |
1478 | if (usecs >= 1000000) | |
1479 | { | |
1480 | usecs -= 1000000; | |
1481 | secs++; | |
1482 | } | |
1483 | ||
799734b0 KS |
1484 | return list3 (make_number ((secs >> 16) & 0xffff), |
1485 | make_number ((secs >> 0) & 0xffff), | |
1486 | make_number (usecs)); | |
c433c134 | 1487 | #else /* ! HAVE_GETRUSAGE */ |
43db14bb | 1488 | #ifdef WINDOWSNT |
c433c134 JR |
1489 | return w32_get_internal_run_time (); |
1490 | #else /* ! WINDOWSNT */ | |
4211ee7d | 1491 | return Fcurrent_time (); |
c433c134 JR |
1492 | #endif /* WINDOWSNT */ |
1493 | #endif /* HAVE_GETRUSAGE */ | |
4211ee7d | 1494 | } |
d940e0e4 JB |
1495 | \f |
1496 | ||
5c5718b6 | 1497 | int |
34a7a267 | 1498 | lisp_time_argument (specified_time, result, usec) |
e3120ab5 JB |
1499 | Lisp_Object specified_time; |
1500 | time_t *result; | |
34a7a267 | 1501 | int *usec; |
e3120ab5 JB |
1502 | { |
1503 | if (NILP (specified_time)) | |
34a7a267 SS |
1504 | { |
1505 | if (usec) | |
1506 | { | |
1507 | EMACS_TIME t; | |
1508 | ||
c0261b5e | 1509 | EMACS_GET_TIME (t); |
34a7a267 SS |
1510 | *usec = EMACS_USECS (t); |
1511 | *result = EMACS_SECS (t); | |
1512 | return 1; | |
1513 | } | |
1514 | else | |
1515 | return time (result) != -1; | |
1516 | } | |
e3120ab5 JB |
1517 | else |
1518 | { | |
1519 | Lisp_Object high, low; | |
1520 | high = Fcar (specified_time); | |
b7826503 | 1521 | CHECK_NUMBER (high); |
e3120ab5 | 1522 | low = Fcdr (specified_time); |
ae683129 | 1523 | if (CONSP (low)) |
34a7a267 SS |
1524 | { |
1525 | if (usec) | |
1526 | { | |
1527 | Lisp_Object usec_l = Fcdr (low); | |
1528 | if (CONSP (usec_l)) | |
1529 | usec_l = Fcar (usec_l); | |
1530 | if (NILP (usec_l)) | |
1531 | *usec = 0; | |
1532 | else | |
1533 | { | |
b7826503 | 1534 | CHECK_NUMBER (usec_l); |
34a7a267 SS |
1535 | *usec = XINT (usec_l); |
1536 | } | |
1537 | } | |
1538 | low = Fcar (low); | |
1539 | } | |
1540 | else if (usec) | |
1541 | *usec = 0; | |
b7826503 | 1542 | CHECK_NUMBER (low); |
e3120ab5 JB |
1543 | *result = (XINT (high) << 16) + (XINT (low) & 0xffff); |
1544 | return *result >> 16 == XINT (high); | |
1545 | } | |
1546 | } | |
1547 | ||
34a7a267 | 1548 | DEFUN ("float-time", Ffloat_time, Sfloat_time, 0, 1, 0, |
7ee72033 | 1549 | doc: /* Return the current time, as a float number of seconds since the epoch. |
412f1fab | 1550 | If SPECIFIED-TIME is given, it is the time to convert to float |
5668fbb8 LT |
1551 | instead of the current time. The argument should have the form |
1552 | (HIGH LOW . IGNORED). Thus, you can use times obtained from | |
1553 | `current-time' and from `file-attributes'. SPECIFIED-TIME can also | |
1554 | have the form (HIGH . LOW), but this is considered obsolete. | |
a1f17501 PJ |
1555 | |
1556 | WARNING: Since the result is floating point, it may not be exact. | |
7ee72033 MB |
1557 | Do not use this function if precise time stamps are required. */) |
1558 | (specified_time) | |
34a7a267 SS |
1559 | Lisp_Object specified_time; |
1560 | { | |
1561 | time_t sec; | |
1562 | int usec; | |
1563 | ||
1564 | if (! lisp_time_argument (specified_time, &sec, &usec)) | |
1565 | error ("Invalid time specification"); | |
1566 | ||
26fad6e5 | 1567 | return make_float ((sec * 1e6 + usec) / 1e6); |
34a7a267 SS |
1568 | } |
1569 | ||
70ebbe5f PE |
1570 | /* Write information into buffer S of size MAXSIZE, according to the |
1571 | FORMAT of length FORMAT_LEN, using time information taken from *TP. | |
68c45bf0 | 1572 | Default to Universal Time if UT is nonzero, local time otherwise. |
70ebbe5f PE |
1573 | Return the number of bytes written, not including the terminating |
1574 | '\0'. If S is NULL, nothing will be written anywhere; so to | |
1575 | determine how many bytes would be written, use NULL for S and | |
1576 | ((size_t) -1) for MAXSIZE. | |
1577 | ||
68c45bf0 | 1578 | This function behaves like emacs_strftimeu, except it allows null |
70ebbe5f PE |
1579 | bytes in FORMAT. */ |
1580 | static size_t | |
68c45bf0 | 1581 | emacs_memftimeu (s, maxsize, format, format_len, tp, ut) |
70ebbe5f PE |
1582 | char *s; |
1583 | size_t maxsize; | |
1584 | const char *format; | |
1585 | size_t format_len; | |
1586 | const struct tm *tp; | |
68c45bf0 | 1587 | int ut; |
70ebbe5f PE |
1588 | { |
1589 | size_t total = 0; | |
1590 | ||
be09e6e6 PE |
1591 | /* Loop through all the null-terminated strings in the format |
1592 | argument. Normally there's just one null-terminated string, but | |
1593 | there can be arbitrarily many, concatenated together, if the | |
68c45bf0 | 1594 | format contains '\0' bytes. emacs_strftimeu stops at the first |
be09e6e6 | 1595 | '\0' byte so we must invoke it separately for each such string. */ |
70ebbe5f PE |
1596 | for (;;) |
1597 | { | |
1598 | size_t len; | |
1599 | size_t result; | |
1600 | ||
1601 | if (s) | |
1602 | s[0] = '\1'; | |
1603 | ||
68c45bf0 | 1604 | result = emacs_strftimeu (s, maxsize, format, tp, ut); |
70ebbe5f PE |
1605 | |
1606 | if (s) | |
1607 | { | |
1608 | if (result == 0 && s[0] != '\0') | |
1609 | return 0; | |
1610 | s += result + 1; | |
1611 | } | |
1612 | ||
1613 | maxsize -= result + 1; | |
1614 | total += result; | |
1615 | len = strlen (format); | |
1616 | if (len == format_len) | |
1617 | return total; | |
1618 | total++; | |
1619 | format += len + 1; | |
1620 | format_len -= len + 1; | |
1621 | } | |
1622 | } | |
1623 | ||
3efcc98a | 1624 | DEFUN ("format-time-string", Fformat_time_string, Sformat_time_string, 1, 3, 0, |
7ee72033 | 1625 | doc: /* Use FORMAT-STRING to format the time TIME, or now if omitted. |
5668fbb8 LT |
1626 | TIME is specified as (HIGH LOW . IGNORED), as returned by |
1627 | `current-time' or `file-attributes'. The obsolete form (HIGH . LOW) | |
1628 | is also still accepted. | |
a1f17501 PJ |
1629 | The third, optional, argument UNIVERSAL, if non-nil, means describe TIME |
1630 | as Universal Time; nil means describe TIME in the local time zone. | |
1631 | The value is a copy of FORMAT-STRING, but with certain constructs replaced | |
1632 | by text that describes the specified date and time in TIME: | |
1633 | ||
1634 | %Y is the year, %y within the century, %C the century. | |
1635 | %G is the year corresponding to the ISO week, %g within the century. | |
1636 | %m is the numeric month. | |
1637 | %b and %h are the locale's abbreviated month name, %B the full name. | |
1638 | %d is the day of the month, zero-padded, %e is blank-padded. | |
1639 | %u is the numeric day of week from 1 (Monday) to 7, %w from 0 (Sunday) to 6. | |
1640 | %a is the locale's abbreviated name of the day of week, %A the full name. | |
1641 | %U is the week number starting on Sunday, %W starting on Monday, | |
1642 | %V according to ISO 8601. | |
1643 | %j is the day of the year. | |
1644 | ||
1645 | %H is the hour on a 24-hour clock, %I is on a 12-hour clock, %k is like %H | |
1646 | only blank-padded, %l is like %I blank-padded. | |
1647 | %p is the locale's equivalent of either AM or PM. | |
1648 | %M is the minute. | |
1649 | %S is the second. | |
1650 | %Z is the time zone name, %z is the numeric form. | |
1651 | %s is the number of seconds since 1970-01-01 00:00:00 +0000. | |
1652 | ||
1653 | %c is the locale's date and time format. | |
1654 | %x is the locale's "preferred" date format. | |
1655 | %D is like "%m/%d/%y". | |
1656 | ||
1657 | %R is like "%H:%M", %T is like "%H:%M:%S", %r is like "%I:%M:%S %p". | |
1658 | %X is the locale's "preferred" time format. | |
1659 | ||
1660 | Finally, %n is a newline, %t is a tab, %% is a literal %. | |
1661 | ||
1662 | Certain flags and modifiers are available with some format controls. | |
1663 | The flags are `_', `-', `^' and `#'. For certain characters X, | |
1664 | %_X is like %X, but padded with blanks; %-X is like %X, | |
a67a233b MR |
1665 | but without padding. %^X is like %X, but with all textual |
1666 | characters up-cased; %#X is like %X, but with letter-case of | |
a1f17501 PJ |
1667 | all textual characters reversed. |
1668 | %NX (where N stands for an integer) is like %X, | |
1669 | but takes up at least N (a number) positions. | |
1670 | The modifiers are `E' and `O'. For certain characters X, | |
1671 | %EX is a locale's alternative version of %X; | |
1672 | %OX is like %X, but uses the locale's number symbols. | |
1673 | ||
7ee72033 MB |
1674 | For example, to produce full ISO 8601 format, use "%Y-%m-%dT%T%z". */) |
1675 | (format_string, time, universal) | |
b48382a0 | 1676 | Lisp_Object format_string, time, universal; |
a82d387c RS |
1677 | { |
1678 | time_t value; | |
1679 | int size; | |
177ea5f1 | 1680 | struct tm *tm; |
68c45bf0 | 1681 | int ut = ! NILP (universal); |
a82d387c | 1682 | |
b7826503 | 1683 | CHECK_STRING (format_string); |
a82d387c | 1684 | |
34a7a267 | 1685 | if (! lisp_time_argument (time, &value, NULL)) |
a82d387c RS |
1686 | error ("Invalid time specification"); |
1687 | ||
68c45bf0 PE |
1688 | format_string = code_convert_string_norecord (format_string, |
1689 | Vlocale_coding_system, 1); | |
1690 | ||
a82d387c | 1691 | /* This is probably enough. */ |
d5db4077 | 1692 | size = SBYTES (format_string) * 6 + 50; |
a82d387c | 1693 | |
bcda42c8 | 1694 | BLOCK_INPUT; |
68c45bf0 | 1695 | tm = ut ? gmtime (&value) : localtime (&value); |
bcda42c8 | 1696 | UNBLOCK_INPUT; |
177ea5f1 PE |
1697 | if (! tm) |
1698 | error ("Specified time is not representable"); | |
1699 | ||
ca9c0567 | 1700 | synchronize_system_time_locale (); |
68c45bf0 | 1701 | |
a82d387c RS |
1702 | while (1) |
1703 | { | |
b48382a0 RS |
1704 | char *buf = (char *) alloca (size + 1); |
1705 | int result; | |
1706 | ||
bfbcc5ee | 1707 | buf[0] = '\1'; |
bcda42c8 | 1708 | BLOCK_INPUT; |
d5db4077 KR |
1709 | result = emacs_memftimeu (buf, size, SDATA (format_string), |
1710 | SBYTES (format_string), | |
68c45bf0 | 1711 | tm, ut); |
bcda42c8 | 1712 | UNBLOCK_INPUT; |
bfbcc5ee | 1713 | if ((result > 0 && result < size) || (result == 0 && buf[0] == '\0')) |
04e28558 | 1714 | return code_convert_string_norecord (make_unibyte_string (buf, result), |
68c45bf0 | 1715 | Vlocale_coding_system, 0); |
b48382a0 RS |
1716 | |
1717 | /* If buffer was too small, make it bigger and try again. */ | |
bcda42c8 | 1718 | BLOCK_INPUT; |
68c45bf0 | 1719 | result = emacs_memftimeu (NULL, (size_t) -1, |
d5db4077 KR |
1720 | SDATA (format_string), |
1721 | SBYTES (format_string), | |
68c45bf0 | 1722 | tm, ut); |
bcda42c8 | 1723 | UNBLOCK_INPUT; |
b48382a0 | 1724 | size = result + 1; |
a82d387c RS |
1725 | } |
1726 | } | |
1727 | ||
4691c06d | 1728 | DEFUN ("decode-time", Fdecode_time, Sdecode_time, 0, 1, 0, |
7ee72033 | 1729 | doc: /* Decode a time value as (SEC MINUTE HOUR DAY MONTH YEAR DOW DST ZONE). |
5668fbb8 | 1730 | The optional SPECIFIED-TIME should be a list of (HIGH LOW . IGNORED), |
9671c13a | 1731 | as from `current-time' and `file-attributes', or nil to use the |
5668fbb8 LT |
1732 | current time. The obsolete form (HIGH . LOW) is also still accepted. |
1733 | The list has the following nine members: SEC is an integer between 0 | |
1734 | and 60; SEC is 60 for a leap second, which only some operating systems | |
1735 | support. MINUTE is an integer between 0 and 59. HOUR is an integer | |
1736 | between 0 and 23. DAY is an integer between 1 and 31. MONTH is an | |
1737 | integer between 1 and 12. YEAR is an integer indicating the | |
1738 | four-digit year. DOW is the day of week, an integer between 0 and 6, | |
f1767e2b | 1739 | where 0 is Sunday. DST is t if daylight saving time is in effect, |
5668fbb8 LT |
1740 | otherwise nil. ZONE is an integer indicating the number of seconds |
1741 | east of Greenwich. (Note that Common Lisp has different meanings for | |
1742 | DOW and ZONE.) */) | |
7ee72033 | 1743 | (specified_time) |
4691c06d RS |
1744 | Lisp_Object specified_time; |
1745 | { | |
1746 | time_t time_spec; | |
3c887943 | 1747 | struct tm save_tm; |
4691c06d RS |
1748 | struct tm *decoded_time; |
1749 | Lisp_Object list_args[9]; | |
34a7a267 SS |
1750 | |
1751 | if (! lisp_time_argument (specified_time, &time_spec, NULL)) | |
4691c06d RS |
1752 | error ("Invalid time specification"); |
1753 | ||
bcda42c8 | 1754 | BLOCK_INPUT; |
4691c06d | 1755 | decoded_time = localtime (&time_spec); |
bcda42c8 | 1756 | UNBLOCK_INPUT; |
177ea5f1 PE |
1757 | if (! decoded_time) |
1758 | error ("Specified time is not representable"); | |
3c887943 KH |
1759 | XSETFASTINT (list_args[0], decoded_time->tm_sec); |
1760 | XSETFASTINT (list_args[1], decoded_time->tm_min); | |
1761 | XSETFASTINT (list_args[2], decoded_time->tm_hour); | |
1762 | XSETFASTINT (list_args[3], decoded_time->tm_mday); | |
1763 | XSETFASTINT (list_args[4], decoded_time->tm_mon + 1); | |
71c3f28f EZ |
1764 | /* On 64-bit machines an int is narrower than EMACS_INT, thus the |
1765 | cast below avoids overflow in int arithmetics. */ | |
aac18aa4 | 1766 | XSETINT (list_args[5], TM_YEAR_BASE + (EMACS_INT) decoded_time->tm_year); |
3c887943 | 1767 | XSETFASTINT (list_args[6], decoded_time->tm_wday); |
4691c06d | 1768 | list_args[7] = (decoded_time->tm_isdst)? Qt : Qnil; |
3c887943 KH |
1769 | |
1770 | /* Make a copy, in case gmtime modifies the struct. */ | |
1771 | save_tm = *decoded_time; | |
bcda42c8 | 1772 | BLOCK_INPUT; |
3c887943 | 1773 | decoded_time = gmtime (&time_spec); |
bcda42c8 | 1774 | UNBLOCK_INPUT; |
3c887943 KH |
1775 | if (decoded_time == 0) |
1776 | list_args[8] = Qnil; | |
1777 | else | |
94751666 | 1778 | XSETINT (list_args[8], tm_diff (&save_tm, decoded_time)); |
4691c06d RS |
1779 | return Flist (9, list_args); |
1780 | } | |
1781 | ||
6ee9061c | 1782 | DEFUN ("encode-time", Fencode_time, Sencode_time, 6, MANY, 0, |
7ee72033 | 1783 | doc: /* Convert SECOND, MINUTE, HOUR, DAY, MONTH, YEAR and ZONE to internal time. |
a1f17501 PJ |
1784 | This is the reverse operation of `decode-time', which see. |
1785 | ZONE defaults to the current time zone rule. This can | |
1786 | be a string or t (as from `set-time-zone-rule'), or it can be a list | |
b57c2708 | 1787 | \(as from `current-time-zone') or an integer (as from `decode-time') |
9c279ddf | 1788 | applied without consideration for daylight saving time. |
a1f17501 PJ |
1789 | |
1790 | You can pass more than 7 arguments; then the first six arguments | |
1791 | are used as SECOND through YEAR, and the *last* argument is used as ZONE. | |
1792 | The intervening arguments are ignored. | |
1793 | This feature lets (apply 'encode-time (decode-time ...)) work. | |
1794 | ||
412f1fab | 1795 | Out-of-range values for SECOND, MINUTE, HOUR, DAY, or MONTH are allowed; |
a1f17501 PJ |
1796 | for example, a DAY of 0 means the day preceding the given month. |
1797 | Year numbers less than 100 are treated just like other year numbers. | |
4bfbe194 MB |
1798 | If you want them to stand for years in this century, you must do that yourself. |
1799 | ||
f555f8cf KH |
1800 | Years before 1970 are not guaranteed to work. On some systems, |
1801 | year values as low as 1901 do work. | |
1802 | ||
4bfbe194 | 1803 | usage: (encode-time SECOND MINUTE HOUR DAY MONTH YEAR &optional ZONE) */) |
7ee72033 | 1804 | (nargs, args) |
6ee9061c RS |
1805 | int nargs; |
1806 | register Lisp_Object *args; | |
cce7b8a0 | 1807 | { |
1b8fa736 | 1808 | time_t time; |
c59b5089 | 1809 | struct tm tm; |
60653898 | 1810 | Lisp_Object zone = (nargs > 6 ? args[nargs - 1] : Qnil); |
6ee9061c | 1811 | |
b7826503 PJ |
1812 | CHECK_NUMBER (args[0]); /* second */ |
1813 | CHECK_NUMBER (args[1]); /* minute */ | |
1814 | CHECK_NUMBER (args[2]); /* hour */ | |
1815 | CHECK_NUMBER (args[3]); /* day */ | |
1816 | CHECK_NUMBER (args[4]); /* month */ | |
1817 | CHECK_NUMBER (args[5]); /* year */ | |
6ee9061c RS |
1818 | |
1819 | tm.tm_sec = XINT (args[0]); | |
1820 | tm.tm_min = XINT (args[1]); | |
1821 | tm.tm_hour = XINT (args[2]); | |
1822 | tm.tm_mday = XINT (args[3]); | |
1823 | tm.tm_mon = XINT (args[4]) - 1; | |
aac18aa4 | 1824 | tm.tm_year = XINT (args[5]) - TM_YEAR_BASE; |
c59b5089 PE |
1825 | tm.tm_isdst = -1; |
1826 | ||
1827 | if (CONSP (zone)) | |
1828 | zone = Fcar (zone); | |
1b8fa736 | 1829 | if (NILP (zone)) |
bcda42c8 YM |
1830 | { |
1831 | BLOCK_INPUT; | |
1832 | time = mktime (&tm); | |
1833 | UNBLOCK_INPUT; | |
1834 | } | |
c59b5089 | 1835 | else |
1b8fa736 | 1836 | { |
c59b5089 PE |
1837 | char tzbuf[100]; |
1838 | char *tzstring; | |
1839 | char **oldenv = environ, **newenv; | |
34a7a267 | 1840 | |
2e34157c | 1841 | if (EQ (zone, Qt)) |
085e9fcb EN |
1842 | tzstring = "UTC0"; |
1843 | else if (STRINGP (zone)) | |
d5db4077 | 1844 | tzstring = (char *) SDATA (zone); |
c59b5089 | 1845 | else if (INTEGERP (zone)) |
1b8fa736 | 1846 | { |
1ea40aa2 | 1847 | int abszone = eabs (XINT (zone)); |
c59b5089 PE |
1848 | sprintf (tzbuf, "XXX%s%d:%02d:%02d", "-" + (XINT (zone) < 0), |
1849 | abszone / (60*60), (abszone/60) % 60, abszone % 60); | |
1850 | tzstring = tzbuf; | |
1b8fa736 | 1851 | } |
c59b5089 PE |
1852 | else |
1853 | error ("Invalid time zone specification"); | |
1854 | ||
34a7a267 | 1855 | /* Set TZ before calling mktime; merely adjusting mktime's returned |
c59b5089 PE |
1856 | value doesn't suffice, since that would mishandle leap seconds. */ |
1857 | set_time_zone_rule (tzstring); | |
1858 | ||
bcda42c8 | 1859 | BLOCK_INPUT; |
c59b5089 | 1860 | time = mktime (&tm); |
bcda42c8 | 1861 | UNBLOCK_INPUT; |
c59b5089 PE |
1862 | |
1863 | /* Restore TZ to previous value. */ | |
1864 | newenv = environ; | |
1865 | environ = oldenv; | |
c0efcacf | 1866 | xfree (newenv); |
c59b5089 PE |
1867 | #ifdef LOCALTIME_CACHE |
1868 | tzset (); | |
1869 | #endif | |
1b8fa736 | 1870 | } |
1b8fa736 | 1871 | |
c59b5089 PE |
1872 | if (time == (time_t) -1) |
1873 | error ("Specified time is not representable"); | |
1874 | ||
1875 | return make_time (time); | |
cce7b8a0 RS |
1876 | } |
1877 | ||
2148f2b4 | 1878 | DEFUN ("current-time-string", Fcurrent_time_string, Scurrent_time_string, 0, 1, 0, |
7ee72033 | 1879 | doc: /* Return the current time, as a human-readable string. |
a1f17501 | 1880 | Programs can use this function to decode a time, |
d65b4235 PE |
1881 | since the number of columns in each field is fixed |
1882 | if the year is in the range 1000-9999. | |
a1f17501 PJ |
1883 | The format is `Sun Sep 16 01:03:52 1973'. |
1884 | However, see also the functions `decode-time' and `format-time-string' | |
1885 | which provide a much more powerful and general facility. | |
1886 | ||
5668fbb8 LT |
1887 | If SPECIFIED-TIME is given, it is a time to format instead of the |
1888 | current time. The argument should have the form (HIGH LOW . IGNORED). | |
1889 | Thus, you can use times obtained from `current-time' and from | |
1890 | `file-attributes'. SPECIFIED-TIME can also have the form (HIGH . LOW), | |
1891 | but this is considered obsolete. */) | |
7ee72033 | 1892 | (specified_time) |
2148f2b4 RS |
1893 | Lisp_Object specified_time; |
1894 | { | |
e3120ab5 | 1895 | time_t value; |
aac18aa4 | 1896 | struct tm *tm; |
2148f2b4 RS |
1897 | register char *tem; |
1898 | ||
34a7a267 | 1899 | if (! lisp_time_argument (specified_time, &value, NULL)) |
aac18aa4 | 1900 | error ("Invalid time specification"); |
d65b4235 PE |
1901 | |
1902 | /* Convert to a string, checking for out-of-range time stamps. | |
1903 | Don't use 'ctime', as that might dump core if VALUE is out of | |
1904 | range. */ | |
bcda42c8 | 1905 | BLOCK_INPUT; |
aac18aa4 | 1906 | tm = localtime (&value); |
bcda42c8 | 1907 | UNBLOCK_INPUT; |
d65b4235 | 1908 | if (! (tm && TM_YEAR_IN_ASCTIME_RANGE (tm->tm_year) && (tem = asctime (tm)))) |
aac18aa4 | 1909 | error ("Specified time is not representable"); |
35692fe0 | 1910 | |
d65b4235 PE |
1911 | /* Remove the trailing newline. */ |
1912 | tem[strlen (tem) - 1] = '\0'; | |
35692fe0 | 1913 | |
d65b4235 | 1914 | return build_string (tem); |
35692fe0 | 1915 | } |
c2662aea | 1916 | |
94751666 PE |
1917 | /* Yield A - B, measured in seconds. |
1918 | This function is copied from the GNU C Library. */ | |
1919 | static int | |
1920 | tm_diff (a, b) | |
e3120ab5 JB |
1921 | struct tm *a, *b; |
1922 | { | |
94751666 PE |
1923 | /* Compute intervening leap days correctly even if year is negative. |
1924 | Take care to avoid int overflow in leap day calculations, | |
1925 | but it's OK to assume that A and B are close to each other. */ | |
1926 | int a4 = (a->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (a->tm_year & 3); | |
1927 | int b4 = (b->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (b->tm_year & 3); | |
1928 | int a100 = a4 / 25 - (a4 % 25 < 0); | |
1929 | int b100 = b4 / 25 - (b4 % 25 < 0); | |
1930 | int a400 = a100 >> 2; | |
1931 | int b400 = b100 >> 2; | |
1932 | int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400); | |
1933 | int years = a->tm_year - b->tm_year; | |
1934 | int days = (365 * years + intervening_leap_days | |
1935 | + (a->tm_yday - b->tm_yday)); | |
1936 | return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour)) | |
1937 | + (a->tm_min - b->tm_min)) | |
8e718b4e | 1938 | + (a->tm_sec - b->tm_sec)); |
e3120ab5 JB |
1939 | } |
1940 | ||
1941 | DEFUN ("current-time-zone", Fcurrent_time_zone, Scurrent_time_zone, 0, 1, 0, | |
7ee72033 | 1942 | doc: /* Return the offset and name for the local time zone. |
a1f17501 PJ |
1943 | This returns a list of the form (OFFSET NAME). |
1944 | OFFSET is an integer number of seconds ahead of UTC (east of Greenwich). | |
1945 | A negative value means west of Greenwich. | |
1946 | NAME is a string giving the name of the time zone. | |
412f1fab | 1947 | If SPECIFIED-TIME is given, the time zone offset is determined from it |
5668fbb8 LT |
1948 | instead of using the current time. The argument should have the form |
1949 | (HIGH LOW . IGNORED). Thus, you can use times obtained from | |
1950 | `current-time' and from `file-attributes'. SPECIFIED-TIME can also | |
1951 | have the form (HIGH . LOW), but this is considered obsolete. | |
a1f17501 PJ |
1952 | |
1953 | Some operating systems cannot provide all this information to Emacs; | |
1954 | in this case, `current-time-zone' returns a list containing nil for | |
7ee72033 MB |
1955 | the data it can't find. */) |
1956 | (specified_time) | |
e3120ab5 | 1957 | Lisp_Object specified_time; |
c2662aea | 1958 | { |
e3120ab5 JB |
1959 | time_t value; |
1960 | struct tm *t; | |
177ea5f1 | 1961 | struct tm gmt; |
c2662aea | 1962 | |
bcda42c8 YM |
1963 | if (!lisp_time_argument (specified_time, &value, NULL)) |
1964 | t = NULL; | |
1965 | else | |
1966 | { | |
1967 | BLOCK_INPUT; | |
1968 | t = gmtime (&value); | |
1969 | if (t) | |
1970 | { | |
1971 | gmt = *t; | |
1972 | t = localtime (&value); | |
1973 | } | |
1974 | UNBLOCK_INPUT; | |
1975 | } | |
1976 | ||
1977 | if (t) | |
e3120ab5 | 1978 | { |
177ea5f1 PE |
1979 | int offset = tm_diff (t, &gmt); |
1980 | char *s = 0; | |
1981 | char buf[6]; | |
42c4c67a | 1982 | |
e3120ab5 JB |
1983 | #ifdef HAVE_TM_ZONE |
1984 | if (t->tm_zone) | |
5fd4de15 | 1985 | s = (char *)t->tm_zone; |
a7971c39 RS |
1986 | #else /* not HAVE_TM_ZONE */ |
1987 | #ifdef HAVE_TZNAME | |
1988 | if (t->tm_isdst == 0 || t->tm_isdst == 1) | |
1989 | s = tzname[t->tm_isdst]; | |
c2662aea | 1990 | #endif |
a7971c39 | 1991 | #endif /* not HAVE_TM_ZONE */ |
cda0f4da | 1992 | |
e3120ab5 JB |
1993 | if (!s) |
1994 | { | |
1995 | /* No local time zone name is available; use "+-NNNN" instead. */ | |
00fc94d0 | 1996 | int am = (offset < 0 ? -offset : offset) / 60; |
e3120ab5 JB |
1997 | sprintf (buf, "%c%02d%02d", (offset < 0 ? '-' : '+'), am/60, am%60); |
1998 | s = buf; | |
1999 | } | |
42c4c67a | 2000 | |
e3120ab5 JB |
2001 | return Fcons (make_number (offset), Fcons (build_string (s), Qnil)); |
2002 | } | |
2003 | else | |
09dbcf71 | 2004 | return Fmake_list (make_number (2), Qnil); |
c2662aea JB |
2005 | } |
2006 | ||
260e2e2a KH |
2007 | /* This holds the value of `environ' produced by the previous |
2008 | call to Fset_time_zone_rule, or 0 if Fset_time_zone_rule | |
2009 | has never been called. */ | |
2010 | static char **environbuf; | |
2011 | ||
a03fc5a6 JR |
2012 | /* This holds the startup value of the TZ environment variable so it |
2013 | can be restored if the user calls set-time-zone-rule with a nil | |
2014 | argument. */ | |
2015 | static char *initial_tz; | |
2016 | ||
143cb9a9 | 2017 | DEFUN ("set-time-zone-rule", Fset_time_zone_rule, Sset_time_zone_rule, 1, 1, 0, |
7ee72033 | 2018 | doc: /* Set the local time zone using TZ, a string specifying a time zone rule. |
a1f17501 | 2019 | If TZ is nil, use implementation-defined default time zone information. |
7ee72033 MB |
2020 | If TZ is t, use Universal Time. */) |
2021 | (tz) | |
143cb9a9 RS |
2022 | Lisp_Object tz; |
2023 | { | |
143cb9a9 RS |
2024 | char *tzstring; |
2025 | ||
a03fc5a6 JR |
2026 | /* When called for the first time, save the original TZ. */ |
2027 | if (!environbuf) | |
2028 | initial_tz = (char *) getenv ("TZ"); | |
2029 | ||
143cb9a9 | 2030 | if (NILP (tz)) |
a03fc5a6 | 2031 | tzstring = initial_tz; |
2e34157c | 2032 | else if (EQ (tz, Qt)) |
085e9fcb | 2033 | tzstring = "UTC0"; |
143cb9a9 RS |
2034 | else |
2035 | { | |
b7826503 | 2036 | CHECK_STRING (tz); |
d5db4077 | 2037 | tzstring = (char *) SDATA (tz); |
143cb9a9 RS |
2038 | } |
2039 | ||
c59b5089 | 2040 | set_time_zone_rule (tzstring); |
c2cd06e6 | 2041 | free (environbuf); |
c59b5089 PE |
2042 | environbuf = environ; |
2043 | ||
2044 | return Qnil; | |
2045 | } | |
2046 | ||
e0bf9faf PE |
2047 | #ifdef LOCALTIME_CACHE |
2048 | ||
2049 | /* These two values are known to load tz files in buggy implementations, | |
2050 | i.e. Solaris 1 executables running under either Solaris 1 or Solaris 2. | |
1155c453 | 2051 | Their values shouldn't matter in non-buggy implementations. |
34a7a267 | 2052 | We don't use string literals for these strings, |
1155c453 RS |
2053 | since if a string in the environment is in readonly |
2054 | storage, it runs afoul of bugs in SVR4 and Solaris 2.3. | |
2055 | See Sun bugs 1113095 and 1114114, ``Timezone routines | |
2056 | improperly modify environment''. */ | |
2057 | ||
e0bf9faf PE |
2058 | static char set_time_zone_rule_tz1[] = "TZ=GMT+0"; |
2059 | static char set_time_zone_rule_tz2[] = "TZ=GMT+1"; | |
2060 | ||
2061 | #endif | |
1155c453 | 2062 | |
c59b5089 PE |
2063 | /* Set the local time zone rule to TZSTRING. |
2064 | This allocates memory into `environ', which it is the caller's | |
2065 | responsibility to free. */ | |
acb7cc89 | 2066 | |
a92ae0ce | 2067 | void |
c59b5089 PE |
2068 | set_time_zone_rule (tzstring) |
2069 | char *tzstring; | |
2070 | { | |
2071 | int envptrs; | |
2072 | char **from, **to, **newenv; | |
2073 | ||
aafe5147 | 2074 | /* Make the ENVIRON vector longer with room for TZSTRING. */ |
143cb9a9 RS |
2075 | for (from = environ; *from; from++) |
2076 | continue; | |
2077 | envptrs = from - environ + 2; | |
2078 | newenv = to = (char **) xmalloc (envptrs * sizeof (char *) | |
2079 | + (tzstring ? strlen (tzstring) + 4 : 0)); | |
aafe5147 RS |
2080 | |
2081 | /* Add TZSTRING to the end of environ, as a value for TZ. */ | |
143cb9a9 RS |
2082 | if (tzstring) |
2083 | { | |
2084 | char *t = (char *) (to + envptrs); | |
2085 | strcpy (t, "TZ="); | |
2086 | strcat (t, tzstring); | |
2087 | *to++ = t; | |
2088 | } | |
2089 | ||
aafe5147 RS |
2090 | /* Copy the old environ vector elements into NEWENV, |
2091 | but don't copy the TZ variable. | |
2092 | So we have only one definition of TZ, which came from TZSTRING. */ | |
143cb9a9 RS |
2093 | for (from = environ; *from; from++) |
2094 | if (strncmp (*from, "TZ=", 3) != 0) | |
2095 | *to++ = *from; | |
2096 | *to = 0; | |
2097 | ||
2098 | environ = newenv; | |
143cb9a9 | 2099 | |
aafe5147 RS |
2100 | /* If we do have a TZSTRING, NEWENV points to the vector slot where |
2101 | the TZ variable is stored. If we do not have a TZSTRING, | |
2102 | TO points to the vector slot which has the terminating null. */ | |
2103 | ||
143cb9a9 | 2104 | #ifdef LOCALTIME_CACHE |
aafe5147 RS |
2105 | { |
2106 | /* In SunOS 4.1.3_U1 and 4.1.4, if TZ has a value like | |
2107 | "US/Pacific" that loads a tz file, then changes to a value like | |
2108 | "XXX0" that does not load a tz file, and then changes back to | |
2109 | its original value, the last change is (incorrectly) ignored. | |
2110 | Also, if TZ changes twice in succession to values that do | |
2111 | not load a tz file, tzset can dump core (see Sun bug#1225179). | |
2112 | The following code works around these bugs. */ | |
2113 | ||
aafe5147 RS |
2114 | if (tzstring) |
2115 | { | |
2116 | /* Temporarily set TZ to a value that loads a tz file | |
2117 | and that differs from tzstring. */ | |
2118 | char *tz = *newenv; | |
1155c453 RS |
2119 | *newenv = (strcmp (tzstring, set_time_zone_rule_tz1 + 3) == 0 |
2120 | ? set_time_zone_rule_tz2 : set_time_zone_rule_tz1); | |
aafe5147 RS |
2121 | tzset (); |
2122 | *newenv = tz; | |
2123 | } | |
2124 | else | |
2125 | { | |
2126 | /* The implied tzstring is unknown, so temporarily set TZ to | |
2127 | two different values that each load a tz file. */ | |
1155c453 | 2128 | *to = set_time_zone_rule_tz1; |
aafe5147 RS |
2129 | to[1] = 0; |
2130 | tzset (); | |
1155c453 | 2131 | *to = set_time_zone_rule_tz2; |
aafe5147 RS |
2132 | tzset (); |
2133 | *to = 0; | |
2134 | } | |
2135 | ||
2136 | /* Now TZ has the desired value, and tzset can be invoked safely. */ | |
2137 | } | |
2138 | ||
143cb9a9 RS |
2139 | tzset (); |
2140 | #endif | |
143cb9a9 | 2141 | } |
35692fe0 | 2142 | \f |
fb8106e8 KH |
2143 | /* Insert NARGS Lisp objects in the array ARGS by calling INSERT_FUNC |
2144 | (if a type of object is Lisp_Int) or INSERT_FROM_STRING_FUNC (if a | |
2145 | type of object is Lisp_String). INHERIT is passed to | |
2146 | INSERT_FROM_STRING_FUNC as the last argument. */ | |
2147 | ||
acb7cc89 | 2148 | static void |
fb8106e8 KH |
2149 | general_insert_function (insert_func, insert_from_string_func, |
2150 | inherit, nargs, args) | |
439e8af4 | 2151 | void (*insert_func) P_ ((const unsigned char *, int)); |
1f24f4fd | 2152 | void (*insert_from_string_func) P_ ((Lisp_Object, int, int, int, int, int)); |
fb8106e8 KH |
2153 | int inherit, nargs; |
2154 | register Lisp_Object *args; | |
2155 | { | |
2156 | register int argnum; | |
2157 | register Lisp_Object val; | |
2158 | ||
2159 | for (argnum = 0; argnum < nargs; argnum++) | |
2160 | { | |
2161 | val = args[argnum]; | |
1b9c91ed | 2162 | if (CHARACTERP (val)) |
fb8106e8 | 2163 | { |
d5c2c403 | 2164 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
fb8106e8 KH |
2165 | int len; |
2166 | ||
2167 | if (!NILP (current_buffer->enable_multibyte_characters)) | |
d5c2c403 | 2168 | len = CHAR_STRING (XFASTINT (val), str); |
fb8106e8 | 2169 | else |
13c148b8 | 2170 | { |
0f8ea88f | 2171 | str[0] = (ASCII_CHAR_P (XINT (val)) |
d5c2c403 KH |
2172 | ? XINT (val) |
2173 | : multibyte_char_to_unibyte (XINT (val), Qnil)); | |
13c148b8 KH |
2174 | len = 1; |
2175 | } | |
fb8106e8 KH |
2176 | (*insert_func) (str, len); |
2177 | } | |
2178 | else if (STRINGP (val)) | |
2179 | { | |
1f24f4fd | 2180 | (*insert_from_string_func) (val, 0, 0, |
d5db4077 KR |
2181 | SCHARS (val), |
2182 | SBYTES (val), | |
1f24f4fd | 2183 | inherit); |
fb8106e8 KH |
2184 | } |
2185 | else | |
b7f34213 | 2186 | wrong_type_argument (Qchar_or_string_p, val); |
fb8106e8 KH |
2187 | } |
2188 | } | |
2189 | ||
35692fe0 JB |
2190 | void |
2191 | insert1 (arg) | |
2192 | Lisp_Object arg; | |
2193 | { | |
2194 | Finsert (1, &arg); | |
2195 | } | |
2196 | ||
52b14ac0 JB |
2197 | |
2198 | /* Callers passing one argument to Finsert need not gcpro the | |
2199 | argument "array", since the only element of the array will | |
2200 | not be used after calling insert or insert_from_string, so | |
2201 | we don't care if it gets trashed. */ | |
2202 | ||
35692fe0 | 2203 | DEFUN ("insert", Finsert, Sinsert, 0, MANY, 0, |
7ee72033 | 2204 | doc: /* Insert the arguments, either strings or characters, at point. |
a1f17501 PJ |
2205 | Point and before-insertion markers move forward to end up |
2206 | after the inserted text. | |
2207 | Any other markers at the point of insertion remain before the text. | |
2208 | ||
2209 | If the current buffer is multibyte, unibyte strings are converted | |
72bb55c6 | 2210 | to multibyte for insertion (see `string-make-multibyte'). |
a1f17501 | 2211 | If the current buffer is unibyte, multibyte strings are converted |
72bb55c6 KS |
2212 | to unibyte for insertion (see `string-make-unibyte'). |
2213 | ||
2214 | When operating on binary data, it may be necessary to preserve the | |
2215 | original bytes of a unibyte string when inserting it into a multibyte | |
2216 | buffer; to accomplish this, apply `string-as-multibyte' to the string | |
2217 | and insert the result. | |
4bfbe194 MB |
2218 | |
2219 | usage: (insert &rest ARGS) */) | |
7ee72033 | 2220 | (nargs, args) |
35692fe0 JB |
2221 | int nargs; |
2222 | register Lisp_Object *args; | |
2223 | { | |
fb8106e8 | 2224 | general_insert_function (insert, insert_from_string, 0, nargs, args); |
be91036a RS |
2225 | return Qnil; |
2226 | } | |
2227 | ||
2228 | DEFUN ("insert-and-inherit", Finsert_and_inherit, Sinsert_and_inherit, | |
2229 | 0, MANY, 0, | |
7ee72033 | 2230 | doc: /* Insert the arguments at point, inheriting properties from adjoining text. |
a1f17501 PJ |
2231 | Point and before-insertion markers move forward to end up |
2232 | after the inserted text. | |
2233 | Any other markers at the point of insertion remain before the text. | |
2234 | ||
2235 | If the current buffer is multibyte, unibyte strings are converted | |
2236 | to multibyte for insertion (see `unibyte-char-to-multibyte'). | |
2237 | If the current buffer is unibyte, multibyte strings are converted | |
4bfbe194 MB |
2238 | to unibyte for insertion. |
2239 | ||
2240 | usage: (insert-and-inherit &rest ARGS) */) | |
7ee72033 | 2241 | (nargs, args) |
be91036a RS |
2242 | int nargs; |
2243 | register Lisp_Object *args; | |
2244 | { | |
fb8106e8 KH |
2245 | general_insert_function (insert_and_inherit, insert_from_string, 1, |
2246 | nargs, args); | |
35692fe0 JB |
2247 | return Qnil; |
2248 | } | |
2249 | ||
2250 | DEFUN ("insert-before-markers", Finsert_before_markers, Sinsert_before_markers, 0, MANY, 0, | |
7ee72033 | 2251 | doc: /* Insert strings or characters at point, relocating markers after the text. |
a1f17501 PJ |
2252 | Point and markers move forward to end up after the inserted text. |
2253 | ||
2254 | If the current buffer is multibyte, unibyte strings are converted | |
2255 | to multibyte for insertion (see `unibyte-char-to-multibyte'). | |
2256 | If the current buffer is unibyte, multibyte strings are converted | |
4bfbe194 MB |
2257 | to unibyte for insertion. |
2258 | ||
2259 | usage: (insert-before-markers &rest ARGS) */) | |
7ee72033 | 2260 | (nargs, args) |
35692fe0 JB |
2261 | int nargs; |
2262 | register Lisp_Object *args; | |
2263 | { | |
fb8106e8 KH |
2264 | general_insert_function (insert_before_markers, |
2265 | insert_from_string_before_markers, 0, | |
2266 | nargs, args); | |
be91036a RS |
2267 | return Qnil; |
2268 | } | |
2269 | ||
a0d76c27 EN |
2270 | DEFUN ("insert-before-markers-and-inherit", Finsert_and_inherit_before_markers, |
2271 | Sinsert_and_inherit_before_markers, 0, MANY, 0, | |
7ee72033 | 2272 | doc: /* Insert text at point, relocating markers and inheriting properties. |
a1f17501 PJ |
2273 | Point and markers move forward to end up after the inserted text. |
2274 | ||
2275 | If the current buffer is multibyte, unibyte strings are converted | |
2276 | to multibyte for insertion (see `unibyte-char-to-multibyte'). | |
2277 | If the current buffer is unibyte, multibyte strings are converted | |
4bfbe194 MB |
2278 | to unibyte for insertion. |
2279 | ||
2280 | usage: (insert-before-markers-and-inherit &rest ARGS) */) | |
7ee72033 | 2281 | (nargs, args) |
be91036a RS |
2282 | int nargs; |
2283 | register Lisp_Object *args; | |
2284 | { | |
fb8106e8 KH |
2285 | general_insert_function (insert_before_markers_and_inherit, |
2286 | insert_from_string_before_markers, 1, | |
2287 | nargs, args); | |
35692fe0 JB |
2288 | return Qnil; |
2289 | } | |
2290 | \f | |
e2eeabbb | 2291 | DEFUN ("insert-char", Finsert_char, Sinsert_char, 2, 3, 0, |
9671c13a | 2292 | doc: /* Insert COUNT copies of CHARACTER. |
a1f17501 PJ |
2293 | Point, and before-insertion markers, are relocated as in the function `insert'. |
2294 | The optional third arg INHERIT, if non-nil, says to inherit text properties | |
7ee72033 MB |
2295 | from adjoining text, if those properties are sticky. */) |
2296 | (character, count, inherit) | |
2591ec64 | 2297 | Lisp_Object character, count, inherit; |
35692fe0 JB |
2298 | { |
2299 | register unsigned char *string; | |
2300 | register int strlen; | |
2301 | register int i, n; | |
fb8106e8 | 2302 | int len; |
d5c2c403 | 2303 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
35692fe0 | 2304 | |
b7826503 PJ |
2305 | CHECK_NUMBER (character); |
2306 | CHECK_NUMBER (count); | |
35692fe0 | 2307 | |
fb8106e8 | 2308 | if (!NILP (current_buffer->enable_multibyte_characters)) |
d5c2c403 | 2309 | len = CHAR_STRING (XFASTINT (character), str); |
fb8106e8 | 2310 | else |
d5c2c403 | 2311 | str[0] = XFASTINT (character), len = 1; |
fb8106e8 | 2312 | n = XINT (count) * len; |
35692fe0 JB |
2313 | if (n <= 0) |
2314 | return Qnil; | |
fb8106e8 | 2315 | strlen = min (n, 256 * len); |
35692fe0 JB |
2316 | string = (unsigned char *) alloca (strlen); |
2317 | for (i = 0; i < strlen; i++) | |
fb8106e8 | 2318 | string[i] = str[i % len]; |
35692fe0 JB |
2319 | while (n >= strlen) |
2320 | { | |
54e42e2d | 2321 | QUIT; |
e2eeabbb RS |
2322 | if (!NILP (inherit)) |
2323 | insert_and_inherit (string, strlen); | |
2324 | else | |
2325 | insert (string, strlen); | |
35692fe0 JB |
2326 | n -= strlen; |
2327 | } | |
2328 | if (n > 0) | |
83951f1e KH |
2329 | { |
2330 | if (!NILP (inherit)) | |
2331 | insert_and_inherit (string, n); | |
2332 | else | |
2333 | insert (string, n); | |
2334 | } | |
35692fe0 JB |
2335 | return Qnil; |
2336 | } | |
2337 | ||
48ef988f KH |
2338 | DEFUN ("insert-byte", Finsert_byte, Sinsert_byte, 2, 3, 0, |
2339 | doc: /* Insert COUNT (second arg) copies of BYTE (first arg). | |
2340 | Both arguments are required. | |
2341 | BYTE is a number of the range 0..255. | |
2342 | ||
2343 | If BYTE is 128..255 and the current buffer is multibyte, the | |
2344 | corresponding eight-bit character is inserted. | |
2345 | ||
2346 | Point, and before-insertion markers, are relocated as in the function `insert'. | |
2347 | The optional third arg INHERIT, if non-nil, says to inherit text properties | |
2348 | from adjoining text, if those properties are sticky. */) | |
2349 | (byte, count, inherit) | |
2350 | Lisp_Object byte, count, inherit; | |
2351 | { | |
2352 | CHECK_NUMBER (byte); | |
2353 | if (XINT (byte) < 0 || XINT (byte) > 255) | |
2354 | args_out_of_range_3 (byte, make_number (0), make_number (255)); | |
2355 | if (XINT (byte) >= 128 | |
2356 | && ! NILP (current_buffer->enable_multibyte_characters)) | |
2357 | XSETFASTINT (byte, BYTE8_TO_CHAR (XINT (byte))); | |
ed398b0a | 2358 | return Finsert_char (byte, count, inherit); |
48ef988f KH |
2359 | } |
2360 | ||
35692fe0 | 2361 | \f |
ffd56f97 JB |
2362 | /* Making strings from buffer contents. */ |
2363 | ||
2364 | /* Return a Lisp_String containing the text of the current buffer from | |
74d6d8c5 | 2365 | START to END. If text properties are in use and the current buffer |
eb8c3be9 | 2366 | has properties in the range specified, the resulting string will also |
260e2e2a | 2367 | have them, if PROPS is nonzero. |
ffd56f97 JB |
2368 | |
2369 | We don't want to use plain old make_string here, because it calls | |
2370 | make_uninit_string, which can cause the buffer arena to be | |
2371 | compacted. make_string has no way of knowing that the data has | |
2372 | been moved, and thus copies the wrong data into the string. This | |
2373 | doesn't effect most of the other users of make_string, so it should | |
2374 | be left as is. But we should use this function when conjuring | |
2375 | buffer substrings. */ | |
74d6d8c5 | 2376 | |
ffd56f97 | 2377 | Lisp_Object |
260e2e2a | 2378 | make_buffer_string (start, end, props) |
ffd56f97 | 2379 | int start, end; |
260e2e2a | 2380 | int props; |
ffd56f97 | 2381 | { |
ec1c14f6 RS |
2382 | int start_byte = CHAR_TO_BYTE (start); |
2383 | int end_byte = CHAR_TO_BYTE (end); | |
ffd56f97 | 2384 | |
88441c8e RS |
2385 | return make_buffer_string_both (start, start_byte, end, end_byte, props); |
2386 | } | |
2387 | ||
2388 | /* Return a Lisp_String containing the text of the current buffer from | |
2389 | START / START_BYTE to END / END_BYTE. | |
2390 | ||
2391 | If text properties are in use and the current buffer | |
2392 | has properties in the range specified, the resulting string will also | |
2393 | have them, if PROPS is nonzero. | |
2394 | ||
2395 | We don't want to use plain old make_string here, because it calls | |
2396 | make_uninit_string, which can cause the buffer arena to be | |
2397 | compacted. make_string has no way of knowing that the data has | |
2398 | been moved, and thus copies the wrong data into the string. This | |
2399 | doesn't effect most of the other users of make_string, so it should | |
2400 | be left as is. But we should use this function when conjuring | |
2401 | buffer substrings. */ | |
2402 | ||
2403 | Lisp_Object | |
2404 | make_buffer_string_both (start, start_byte, end, end_byte, props) | |
2405 | int start, start_byte, end, end_byte; | |
2406 | int props; | |
2407 | { | |
2408 | Lisp_Object result, tem, tem1; | |
2409 | ||
ffd56f97 JB |
2410 | if (start < GPT && GPT < end) |
2411 | move_gap (start); | |
2412 | ||
5f75e666 RS |
2413 | if (! NILP (current_buffer->enable_multibyte_characters)) |
2414 | result = make_uninit_multibyte_string (end - start, end_byte - start_byte); | |
2415 | else | |
2416 | result = make_uninit_string (end - start); | |
d5db4077 | 2417 | bcopy (BYTE_POS_ADDR (start_byte), SDATA (result), |
ec1c14f6 | 2418 | end_byte - start_byte); |
ffd56f97 | 2419 | |
260e2e2a | 2420 | /* If desired, update and copy the text properties. */ |
260e2e2a KH |
2421 | if (props) |
2422 | { | |
2423 | update_buffer_properties (start, end); | |
2424 | ||
2425 | tem = Fnext_property_change (make_number (start), Qnil, make_number (end)); | |
2426 | tem1 = Ftext_properties_at (make_number (start), Qnil); | |
2427 | ||
2428 | if (XINT (tem) != end || !NILP (tem1)) | |
ec1c14f6 RS |
2429 | copy_intervals_to_string (result, current_buffer, start, |
2430 | end - start); | |
260e2e2a | 2431 | } |
74d6d8c5 | 2432 | |
ffd56f97 JB |
2433 | return result; |
2434 | } | |
35692fe0 | 2435 | |
260e2e2a KH |
2436 | /* Call Vbuffer_access_fontify_functions for the range START ... END |
2437 | in the current buffer, if necessary. */ | |
2438 | ||
2439 | static void | |
2440 | update_buffer_properties (start, end) | |
2441 | int start, end; | |
2442 | { | |
260e2e2a KH |
2443 | /* If this buffer has some access functions, |
2444 | call them, specifying the range of the buffer being accessed. */ | |
2445 | if (!NILP (Vbuffer_access_fontify_functions)) | |
2446 | { | |
2447 | Lisp_Object args[3]; | |
2448 | Lisp_Object tem; | |
2449 | ||
2450 | args[0] = Qbuffer_access_fontify_functions; | |
2451 | XSETINT (args[1], start); | |
2452 | XSETINT (args[2], end); | |
2453 | ||
2454 | /* But don't call them if we can tell that the work | |
2455 | has already been done. */ | |
2456 | if (!NILP (Vbuffer_access_fontified_property)) | |
2457 | { | |
2458 | tem = Ftext_property_any (args[1], args[2], | |
2459 | Vbuffer_access_fontified_property, | |
2460 | Qnil, Qnil); | |
2461 | if (! NILP (tem)) | |
ced1d19a | 2462 | Frun_hook_with_args (3, args); |
260e2e2a KH |
2463 | } |
2464 | else | |
ced1d19a | 2465 | Frun_hook_with_args (3, args); |
260e2e2a | 2466 | } |
260e2e2a KH |
2467 | } |
2468 | ||
35692fe0 | 2469 | DEFUN ("buffer-substring", Fbuffer_substring, Sbuffer_substring, 2, 2, 0, |
7ee72033 | 2470 | doc: /* Return the contents of part of the current buffer as a string. |
a1f17501 PJ |
2471 | The two arguments START and END are character positions; |
2472 | they can be in either order. | |
2473 | The string returned is multibyte if the buffer is multibyte. | |
2474 | ||
2475 | This function copies the text properties of that part of the buffer | |
2476 | into the result string; if you don't want the text properties, | |
7ee72033 MB |
2477 | use `buffer-substring-no-properties' instead. */) |
2478 | (start, end) | |
2591ec64 | 2479 | Lisp_Object start, end; |
35692fe0 | 2480 | { |
2591ec64 | 2481 | register int b, e; |
35692fe0 | 2482 | |
2591ec64 EN |
2483 | validate_region (&start, &end); |
2484 | b = XINT (start); | |
2485 | e = XINT (end); | |
35692fe0 | 2486 | |
2591ec64 | 2487 | return make_buffer_string (b, e, 1); |
260e2e2a KH |
2488 | } |
2489 | ||
2490 | DEFUN ("buffer-substring-no-properties", Fbuffer_substring_no_properties, | |
2491 | Sbuffer_substring_no_properties, 2, 2, 0, | |
7ee72033 | 2492 | doc: /* Return the characters of part of the buffer, without the text properties. |
a1f17501 | 2493 | The two arguments START and END are character positions; |
7ee72033 MB |
2494 | they can be in either order. */) |
2495 | (start, end) | |
2591ec64 | 2496 | Lisp_Object start, end; |
260e2e2a | 2497 | { |
2591ec64 | 2498 | register int b, e; |
260e2e2a | 2499 | |
2591ec64 EN |
2500 | validate_region (&start, &end); |
2501 | b = XINT (start); | |
2502 | e = XINT (end); | |
260e2e2a | 2503 | |
2591ec64 | 2504 | return make_buffer_string (b, e, 0); |
35692fe0 JB |
2505 | } |
2506 | ||
2507 | DEFUN ("buffer-string", Fbuffer_string, Sbuffer_string, 0, 0, 0, | |
7ee72033 | 2508 | doc: /* Return the contents of the current buffer as a string. |
a1f17501 | 2509 | If narrowing is in effect, this function returns only the visible part |
7ee72033 MB |
2510 | of the buffer. */) |
2511 | () | |
35692fe0 | 2512 | { |
0daf6e8d | 2513 | return make_buffer_string (BEGV, ZV, 1); |
35692fe0 JB |
2514 | } |
2515 | ||
2516 | DEFUN ("insert-buffer-substring", Finsert_buffer_substring, Sinsert_buffer_substring, | |
deb8e082 | 2517 | 1, 3, 0, |
658ec670 | 2518 | doc: /* Insert before point a substring of the contents of BUFFER. |
a1f17501 | 2519 | BUFFER may be a buffer or a buffer name. |
412f1fab JB |
2520 | Arguments START and END are character positions specifying the substring. |
2521 | They default to the values of (point-min) and (point-max) in BUFFER. */) | |
658ec670 JB |
2522 | (buffer, start, end) |
2523 | Lisp_Object buffer, start, end; | |
35692fe0 | 2524 | { |
2591ec64 | 2525 | register int b, e, temp; |
260e2e2a | 2526 | register struct buffer *bp, *obuf; |
658ec670 | 2527 | Lisp_Object buf; |
35692fe0 | 2528 | |
658ec670 JB |
2529 | buf = Fget_buffer (buffer); |
2530 | if (NILP (buf)) | |
2531 | nsberror (buffer); | |
2532 | bp = XBUFFER (buf); | |
93b62e82 KH |
2533 | if (NILP (bp->name)) |
2534 | error ("Selecting deleted buffer"); | |
35692fe0 | 2535 | |
2591ec64 EN |
2536 | if (NILP (start)) |
2537 | b = BUF_BEGV (bp); | |
35692fe0 JB |
2538 | else |
2539 | { | |
b7826503 | 2540 | CHECK_NUMBER_COERCE_MARKER (start); |
2591ec64 | 2541 | b = XINT (start); |
35692fe0 | 2542 | } |
2591ec64 EN |
2543 | if (NILP (end)) |
2544 | e = BUF_ZV (bp); | |
35692fe0 JB |
2545 | else |
2546 | { | |
b7826503 | 2547 | CHECK_NUMBER_COERCE_MARKER (end); |
2591ec64 | 2548 | e = XINT (end); |
35692fe0 JB |
2549 | } |
2550 | ||
2591ec64 EN |
2551 | if (b > e) |
2552 | temp = b, b = e, e = temp; | |
35692fe0 | 2553 | |
2591ec64 EN |
2554 | if (!(BUF_BEGV (bp) <= b && e <= BUF_ZV (bp))) |
2555 | args_out_of_range (start, end); | |
35692fe0 | 2556 | |
260e2e2a KH |
2557 | obuf = current_buffer; |
2558 | set_buffer_internal_1 (bp); | |
2591ec64 | 2559 | update_buffer_properties (b, e); |
260e2e2a KH |
2560 | set_buffer_internal_1 (obuf); |
2561 | ||
2591ec64 | 2562 | insert_from_buffer (bp, b, e - b, 0); |
35692fe0 JB |
2563 | return Qnil; |
2564 | } | |
e9cf2084 RS |
2565 | |
2566 | DEFUN ("compare-buffer-substrings", Fcompare_buffer_substrings, Scompare_buffer_substrings, | |
deb8e082 | 2567 | 6, 6, 0, |
7ee72033 | 2568 | doc: /* Compare two substrings of two buffers; return result as number. |
a1f17501 PJ |
2569 | the value is -N if first string is less after N-1 chars, |
2570 | +N if first string is greater after N-1 chars, or 0 if strings match. | |
2571 | Each substring is represented as three arguments: BUFFER, START and END. | |
2572 | That makes six args in all, three for each substring. | |
2573 | ||
2574 | The value of `case-fold-search' in the current buffer | |
7ee72033 MB |
2575 | determines whether case is significant or ignored. */) |
2576 | (buffer1, start1, end1, buffer2, start2, end2) | |
e9cf2084 RS |
2577 | Lisp_Object buffer1, start1, end1, buffer2, start2, end2; |
2578 | { | |
07422a12 | 2579 | register int begp1, endp1, begp2, endp2, temp; |
e9cf2084 | 2580 | register struct buffer *bp1, *bp2; |
1149fd6f | 2581 | register Lisp_Object trt |
e9cf2084 | 2582 | = (!NILP (current_buffer->case_fold_search) |
60758816 | 2583 | ? current_buffer->case_canon_table : Qnil); |
ec1c14f6 | 2584 | int chars = 0; |
07422a12 | 2585 | int i1, i2, i1_byte, i2_byte; |
e9cf2084 RS |
2586 | |
2587 | /* Find the first buffer and its substring. */ | |
2588 | ||
2589 | if (NILP (buffer1)) | |
2590 | bp1 = current_buffer; | |
2591 | else | |
2592 | { | |
3fff2dfa RS |
2593 | Lisp_Object buf1; |
2594 | buf1 = Fget_buffer (buffer1); | |
2595 | if (NILP (buf1)) | |
2596 | nsberror (buffer1); | |
2597 | bp1 = XBUFFER (buf1); | |
93b62e82 KH |
2598 | if (NILP (bp1->name)) |
2599 | error ("Selecting deleted buffer"); | |
e9cf2084 RS |
2600 | } |
2601 | ||
2602 | if (NILP (start1)) | |
2603 | begp1 = BUF_BEGV (bp1); | |
2604 | else | |
2605 | { | |
b7826503 | 2606 | CHECK_NUMBER_COERCE_MARKER (start1); |
e9cf2084 RS |
2607 | begp1 = XINT (start1); |
2608 | } | |
2609 | if (NILP (end1)) | |
2610 | endp1 = BUF_ZV (bp1); | |
2611 | else | |
2612 | { | |
b7826503 | 2613 | CHECK_NUMBER_COERCE_MARKER (end1); |
e9cf2084 RS |
2614 | endp1 = XINT (end1); |
2615 | } | |
2616 | ||
2617 | if (begp1 > endp1) | |
2618 | temp = begp1, begp1 = endp1, endp1 = temp; | |
2619 | ||
2620 | if (!(BUF_BEGV (bp1) <= begp1 | |
2621 | && begp1 <= endp1 | |
2622 | && endp1 <= BUF_ZV (bp1))) | |
2623 | args_out_of_range (start1, end1); | |
2624 | ||
2625 | /* Likewise for second substring. */ | |
2626 | ||
2627 | if (NILP (buffer2)) | |
2628 | bp2 = current_buffer; | |
2629 | else | |
2630 | { | |
3fff2dfa RS |
2631 | Lisp_Object buf2; |
2632 | buf2 = Fget_buffer (buffer2); | |
2633 | if (NILP (buf2)) | |
2634 | nsberror (buffer2); | |
3b1fdd85 | 2635 | bp2 = XBUFFER (buf2); |
93b62e82 KH |
2636 | if (NILP (bp2->name)) |
2637 | error ("Selecting deleted buffer"); | |
e9cf2084 RS |
2638 | } |
2639 | ||
2640 | if (NILP (start2)) | |
2641 | begp2 = BUF_BEGV (bp2); | |
2642 | else | |
2643 | { | |
b7826503 | 2644 | CHECK_NUMBER_COERCE_MARKER (start2); |
e9cf2084 RS |
2645 | begp2 = XINT (start2); |
2646 | } | |
2647 | if (NILP (end2)) | |
2648 | endp2 = BUF_ZV (bp2); | |
2649 | else | |
2650 | { | |
b7826503 | 2651 | CHECK_NUMBER_COERCE_MARKER (end2); |
e9cf2084 RS |
2652 | endp2 = XINT (end2); |
2653 | } | |
2654 | ||
2655 | if (begp2 > endp2) | |
2656 | temp = begp2, begp2 = endp2, endp2 = temp; | |
2657 | ||
2658 | if (!(BUF_BEGV (bp2) <= begp2 | |
2659 | && begp2 <= endp2 | |
2660 | && endp2 <= BUF_ZV (bp2))) | |
2661 | args_out_of_range (start2, end2); | |
2662 | ||
07422a12 RS |
2663 | i1 = begp1; |
2664 | i2 = begp2; | |
2665 | i1_byte = buf_charpos_to_bytepos (bp1, i1); | |
2666 | i2_byte = buf_charpos_to_bytepos (bp2, i2); | |
e9cf2084 | 2667 | |
07422a12 | 2668 | while (i1 < endp1 && i2 < endp2) |
e9cf2084 | 2669 | { |
07422a12 RS |
2670 | /* When we find a mismatch, we must compare the |
2671 | characters, not just the bytes. */ | |
2672 | int c1, c2; | |
ec1c14f6 | 2673 | |
2221451f RS |
2674 | QUIT; |
2675 | ||
07422a12 RS |
2676 | if (! NILP (bp1->enable_multibyte_characters)) |
2677 | { | |
2678 | c1 = BUF_FETCH_MULTIBYTE_CHAR (bp1, i1_byte); | |
2679 | BUF_INC_POS (bp1, i1_byte); | |
2680 | i1++; | |
2681 | } | |
2682 | else | |
2683 | { | |
2684 | c1 = BUF_FETCH_BYTE (bp1, i1); | |
2685 | c1 = unibyte_char_to_multibyte (c1); | |
2686 | i1++; | |
2687 | } | |
2688 | ||
2689 | if (! NILP (bp2->enable_multibyte_characters)) | |
2690 | { | |
2691 | c2 = BUF_FETCH_MULTIBYTE_CHAR (bp2, i2_byte); | |
2692 | BUF_INC_POS (bp2, i2_byte); | |
2693 | i2++; | |
2694 | } | |
2695 | else | |
2696 | { | |
2697 | c2 = BUF_FETCH_BYTE (bp2, i2); | |
2698 | c2 = unibyte_char_to_multibyte (c2); | |
2699 | i2++; | |
2700 | } | |
ec1c14f6 | 2701 | |
1149fd6f | 2702 | if (!NILP (trt)) |
e9cf2084 | 2703 | { |
1149fd6f SM |
2704 | c1 = CHAR_TABLE_TRANSLATE (trt, c1); |
2705 | c2 = CHAR_TABLE_TRANSLATE (trt, c2); | |
e9cf2084 RS |
2706 | } |
2707 | if (c1 < c2) | |
ec1c14f6 | 2708 | return make_number (- 1 - chars); |
e9cf2084 | 2709 | if (c1 > c2) |
ec1c14f6 | 2710 | return make_number (chars + 1); |
07422a12 RS |
2711 | |
2712 | chars++; | |
e9cf2084 RS |
2713 | } |
2714 | ||
2715 | /* The strings match as far as they go. | |
2716 | If one is shorter, that one is less. */ | |
07422a12 | 2717 | if (chars < endp1 - begp1) |
ec1c14f6 | 2718 | return make_number (chars + 1); |
07422a12 | 2719 | else if (chars < endp2 - begp2) |
ec1c14f6 | 2720 | return make_number (- chars - 1); |
e9cf2084 RS |
2721 | |
2722 | /* Same length too => they are equal. */ | |
2723 | return make_number (0); | |
2724 | } | |
35692fe0 | 2725 | \f |
d5a539cd RS |
2726 | static Lisp_Object |
2727 | subst_char_in_region_unwind (arg) | |
2728 | Lisp_Object arg; | |
2729 | { | |
2730 | return current_buffer->undo_list = arg; | |
2731 | } | |
2732 | ||
c8e76b47 RS |
2733 | static Lisp_Object |
2734 | subst_char_in_region_unwind_1 (arg) | |
2735 | Lisp_Object arg; | |
2736 | { | |
2737 | return current_buffer->filename = arg; | |
2738 | } | |
2739 | ||
35692fe0 | 2740 | DEFUN ("subst-char-in-region", Fsubst_char_in_region, |
deb8e082 | 2741 | Ssubst_char_in_region, 4, 5, 0, |
7ee72033 | 2742 | doc: /* From START to END, replace FROMCHAR with TOCHAR each time it occurs. |
a1f17501 PJ |
2743 | If optional arg NOUNDO is non-nil, don't record this change for undo |
2744 | and don't mark the buffer as really changed. | |
7ee72033 MB |
2745 | Both characters must have the same length of multi-byte form. */) |
2746 | (start, end, fromchar, tochar, noundo) | |
35692fe0 JB |
2747 | Lisp_Object start, end, fromchar, tochar, noundo; |
2748 | { | |
84246b95 | 2749 | register int pos, pos_byte, stop, i, len, end_byte; |
0f2e2a3b SM |
2750 | /* Keep track of the first change in the buffer: |
2751 | if 0 we haven't found it yet. | |
2752 | if < 0 we've found it and we've run the before-change-function. | |
2753 | if > 0 we've actually performed it and the value is its position. */ | |
60b96ee7 | 2754 | int changed = 0; |
d5c2c403 KH |
2755 | unsigned char fromstr[MAX_MULTIBYTE_LENGTH], tostr[MAX_MULTIBYTE_LENGTH]; |
2756 | unsigned char *p; | |
aed13378 | 2757 | int count = SPECPDL_INDEX (); |
aa801467 KH |
2758 | #define COMBINING_NO 0 |
2759 | #define COMBINING_BEFORE 1 | |
2760 | #define COMBINING_AFTER 2 | |
2761 | #define COMBINING_BOTH (COMBINING_BEFORE | COMBINING_AFTER) | |
2762 | int maybe_byte_combining = COMBINING_NO; | |
2483cf58 | 2763 | int last_changed = 0; |
7439e5b9 | 2764 | int multibyte_p = !NILP (current_buffer->enable_multibyte_characters); |
35692fe0 | 2765 | |
0f2e2a3b SM |
2766 | restart: |
2767 | ||
35692fe0 | 2768 | validate_region (&start, &end); |
b7826503 PJ |
2769 | CHECK_NUMBER (fromchar); |
2770 | CHECK_NUMBER (tochar); | |
35692fe0 | 2771 | |
7439e5b9 | 2772 | if (multibyte_p) |
fb8106e8 | 2773 | { |
d5c2c403 KH |
2774 | len = CHAR_STRING (XFASTINT (fromchar), fromstr); |
2775 | if (CHAR_STRING (XFASTINT (tochar), tostr) != len) | |
fdd6025e | 2776 | error ("Characters in `subst-char-in-region' have different byte-lengths"); |
aa801467 KH |
2777 | if (!ASCII_BYTE_P (*tostr)) |
2778 | { | |
2779 | /* If *TOSTR is in the range 0x80..0x9F and TOCHAR is not a | |
2780 | complete multibyte character, it may be combined with the | |
2781 | after bytes. If it is in the range 0xA0..0xFF, it may be | |
2782 | combined with the before and after bytes. */ | |
2783 | if (!CHAR_HEAD_P (*tostr)) | |
2784 | maybe_byte_combining = COMBINING_BOTH; | |
2785 | else if (BYTES_BY_CHAR_HEAD (*tostr) > len) | |
2786 | maybe_byte_combining = COMBINING_AFTER; | |
2787 | } | |
fb8106e8 KH |
2788 | } |
2789 | else | |
2790 | { | |
2791 | len = 1; | |
d5c2c403 KH |
2792 | fromstr[0] = XFASTINT (fromchar); |
2793 | tostr[0] = XFASTINT (tochar); | |
fb8106e8 KH |
2794 | } |
2795 | ||
84246b95 KH |
2796 | pos = XINT (start); |
2797 | pos_byte = CHAR_TO_BYTE (pos); | |
ec1c14f6 RS |
2798 | stop = CHAR_TO_BYTE (XINT (end)); |
2799 | end_byte = stop; | |
35692fe0 | 2800 | |
d5a539cd RS |
2801 | /* If we don't want undo, turn off putting stuff on the list. |
2802 | That's faster than getting rid of things, | |
c8e76b47 RS |
2803 | and it prevents even the entry for a first change. |
2804 | Also inhibit locking the file. */ | |
0f2e2a3b | 2805 | if (!changed && !NILP (noundo)) |
d5a539cd RS |
2806 | { |
2807 | record_unwind_protect (subst_char_in_region_unwind, | |
2808 | current_buffer->undo_list); | |
2809 | current_buffer->undo_list = Qt; | |
c8e76b47 RS |
2810 | /* Don't do file-locking. */ |
2811 | record_unwind_protect (subst_char_in_region_unwind_1, | |
2812 | current_buffer->filename); | |
2813 | current_buffer->filename = Qnil; | |
d5a539cd RS |
2814 | } |
2815 | ||
84246b95 | 2816 | if (pos_byte < GPT_BYTE) |
ec1c14f6 | 2817 | stop = min (stop, GPT_BYTE); |
fb8106e8 | 2818 | while (1) |
35692fe0 | 2819 | { |
a3360ff9 KH |
2820 | int pos_byte_next = pos_byte; |
2821 | ||
84246b95 | 2822 | if (pos_byte >= stop) |
fb8106e8 | 2823 | { |
84246b95 | 2824 | if (pos_byte >= end_byte) break; |
ec1c14f6 | 2825 | stop = end_byte; |
fb8106e8 | 2826 | } |
84246b95 | 2827 | p = BYTE_POS_ADDR (pos_byte); |
7439e5b9 GM |
2828 | if (multibyte_p) |
2829 | INC_POS (pos_byte_next); | |
2830 | else | |
2831 | ++pos_byte_next; | |
a3360ff9 KH |
2832 | if (pos_byte_next - pos_byte == len |
2833 | && p[0] == fromstr[0] | |
fb8106e8 KH |
2834 | && (len == 1 |
2835 | || (p[1] == fromstr[1] | |
2836 | && (len == 2 || (p[2] == fromstr[2] | |
2837 | && (len == 3 || p[3] == fromstr[3])))))) | |
35692fe0 | 2838 | { |
0f2e2a3b SM |
2839 | if (changed < 0) |
2840 | /* We've already seen this and run the before-change-function; | |
2841 | this time we only need to record the actual position. */ | |
2842 | changed = pos; | |
2843 | else if (!changed) | |
60b96ee7 | 2844 | { |
0f2e2a3b | 2845 | changed = -1; |
3e145152 | 2846 | modify_region (current_buffer, pos, XINT (end), 0); |
7653d030 RS |
2847 | |
2848 | if (! NILP (noundo)) | |
2849 | { | |
1e158d25 RS |
2850 | if (MODIFF - 1 == SAVE_MODIFF) |
2851 | SAVE_MODIFF++; | |
7653d030 RS |
2852 | if (MODIFF - 1 == current_buffer->auto_save_modified) |
2853 | current_buffer->auto_save_modified++; | |
2854 | } | |
0f2e2a3b SM |
2855 | |
2856 | /* The before-change-function may have moved the gap | |
2857 | or even modified the buffer so we should start over. */ | |
2858 | goto restart; | |
60b96ee7 RS |
2859 | } |
2860 | ||
0c1e3b85 | 2861 | /* Take care of the case where the new character |
34a7a267 | 2862 | combines with neighboring bytes. */ |
a3360ff9 | 2863 | if (maybe_byte_combining |
aa801467 KH |
2864 | && (maybe_byte_combining == COMBINING_AFTER |
2865 | ? (pos_byte_next < Z_BYTE | |
2866 | && ! CHAR_HEAD_P (FETCH_BYTE (pos_byte_next))) | |
2867 | : ((pos_byte_next < Z_BYTE | |
2868 | && ! CHAR_HEAD_P (FETCH_BYTE (pos_byte_next))) | |
2869 | || (pos_byte > BEG_BYTE | |
2870 | && ! ASCII_BYTE_P (FETCH_BYTE (pos_byte - 1)))))) | |
0c1e3b85 RS |
2871 | { |
2872 | Lisp_Object tem, string; | |
2873 | ||
2874 | struct gcpro gcpro1; | |
2875 | ||
2876 | tem = current_buffer->undo_list; | |
2877 | GCPRO1 (tem); | |
2878 | ||
aa801467 KH |
2879 | /* Make a multibyte string containing this single character. */ |
2880 | string = make_multibyte_string (tostr, 1, len); | |
0c1e3b85 RS |
2881 | /* replace_range is less efficient, because it moves the gap, |
2882 | but it handles combining correctly. */ | |
2883 | replace_range (pos, pos + 1, string, | |
9869520f | 2884 | 0, 0, 1); |
a3360ff9 KH |
2885 | pos_byte_next = CHAR_TO_BYTE (pos); |
2886 | if (pos_byte_next > pos_byte) | |
2887 | /* Before combining happened. We should not increment | |
3f5409d3 KH |
2888 | POS. So, to cancel the later increment of POS, |
2889 | decrease it now. */ | |
2890 | pos--; | |
a3360ff9 | 2891 | else |
3f5409d3 | 2892 | INC_POS (pos_byte_next); |
34a7a267 | 2893 | |
0c1e3b85 RS |
2894 | if (! NILP (noundo)) |
2895 | current_buffer->undo_list = tem; | |
2896 | ||
2897 | UNGCPRO; | |
2898 | } | |
2899 | else | |
2900 | { | |
2901 | if (NILP (noundo)) | |
2902 | record_change (pos, 1); | |
2903 | for (i = 0; i < len; i++) *p++ = tostr[i]; | |
2904 | } | |
d5c2c403 | 2905 | last_changed = pos + 1; |
35692fe0 | 2906 | } |
3f5409d3 KH |
2907 | pos_byte = pos_byte_next; |
2908 | pos++; | |
35692fe0 JB |
2909 | } |
2910 | ||
0f2e2a3b | 2911 | if (changed > 0) |
d5c2c403 KH |
2912 | { |
2913 | signal_after_change (changed, | |
2914 | last_changed - changed, last_changed - changed); | |
2915 | update_compositions (changed, last_changed, CHECK_ALL); | |
2916 | } | |
60b96ee7 | 2917 | |
d5a539cd | 2918 | unbind_to (count, Qnil); |
35692fe0 JB |
2919 | return Qnil; |
2920 | } | |
2921 | ||
f555f8cf KH |
2922 | |
2923 | static Lisp_Object check_translation P_ ((int, int, int, Lisp_Object)); | |
2924 | ||
2925 | /* Helper function for Ftranslate_region_internal. | |
2926 | ||
2927 | Check if a character sequence at POS (POS_BYTE) matches an element | |
2928 | of VAL. VAL is a list (([FROM-CHAR ...] . TO) ...). If a matching | |
2929 | element is found, return it. Otherwise return Qnil. */ | |
2930 | ||
2931 | static Lisp_Object | |
2932 | check_translation (pos, pos_byte, end, val) | |
2933 | int pos, pos_byte, end; | |
2934 | Lisp_Object val; | |
2935 | { | |
2936 | int buf_size = 16, buf_used = 0; | |
2937 | int *buf = alloca (sizeof (int) * buf_size); | |
2938 | ||
2939 | for (; CONSP (val); val = XCDR (val)) | |
2940 | { | |
2941 | Lisp_Object elt; | |
2942 | int len, i; | |
2943 | ||
2944 | elt = XCAR (val); | |
2945 | if (! CONSP (elt)) | |
2946 | continue; | |
2947 | elt = XCAR (elt); | |
2948 | if (! VECTORP (elt)) | |
2949 | continue; | |
2950 | len = ASIZE (elt); | |
2951 | if (len <= end - pos) | |
2952 | { | |
2953 | for (i = 0; i < len; i++) | |
2954 | { | |
2955 | if (buf_used <= i) | |
2956 | { | |
2957 | unsigned char *p = BYTE_POS_ADDR (pos_byte); | |
2958 | int len; | |
2959 | ||
2960 | if (buf_used == buf_size) | |
2961 | { | |
2962 | int *newbuf; | |
2963 | ||
2964 | buf_size += 16; | |
2965 | newbuf = alloca (sizeof (int) * buf_size); | |
2966 | memcpy (newbuf, buf, sizeof (int) * buf_used); | |
2967 | buf = newbuf; | |
2968 | } | |
2969 | buf[buf_used++] = STRING_CHAR_AND_LENGTH (p, 0, len); | |
2970 | pos_byte += len; | |
2971 | } | |
2972 | if (XINT (AREF (elt, i)) != buf[i]) | |
2973 | break; | |
2974 | } | |
2975 | if (i == len) | |
2976 | return XCAR (val); | |
2977 | } | |
2978 | } | |
2979 | return Qnil; | |
2980 | } | |
2981 | ||
2982 | ||
8583605b KH |
2983 | DEFUN ("translate-region-internal", Ftranslate_region_internal, |
2984 | Stranslate_region_internal, 3, 3, 0, | |
2985 | doc: /* Internal use only. | |
2986 | From START to END, translate characters according to TABLE. | |
f555f8cf KH |
2987 | TABLE is a string or a char-table; the Nth character in it is the |
2988 | mapping for the character with code N. | |
7ee72033 MB |
2989 | It returns the number of characters changed. */) |
2990 | (start, end, table) | |
35692fe0 JB |
2991 | Lisp_Object start; |
2992 | Lisp_Object end; | |
2993 | register Lisp_Object table; | |
2994 | { | |
35692fe0 | 2995 | register unsigned char *tt; /* Trans table. */ |
35692fe0 JB |
2996 | register int nc; /* New character. */ |
2997 | int cnt; /* Number of changes made. */ | |
35692fe0 | 2998 | int size; /* Size of translate table. */ |
f555f8cf | 2999 | int pos, pos_byte, end_pos; |
e8cce5af | 3000 | int multibyte = !NILP (current_buffer->enable_multibyte_characters); |
8583605b KH |
3001 | int string_multibyte; |
3002 | Lisp_Object val; | |
35692fe0 JB |
3003 | |
3004 | validate_region (&start, &end); | |
8583605b | 3005 | if (CHAR_TABLE_P (table)) |
f555f8cf KH |
3006 | { |
3007 | if (! EQ (XCHAR_TABLE (table)->purpose, Qtranslation_table)) | |
3008 | error ("Not a translation table"); | |
eb3d9ec7 | 3009 | size = MAX_CHAR; |
f555f8cf KH |
3010 | tt = NULL; |
3011 | } | |
8583605b KH |
3012 | else |
3013 | { | |
3014 | CHECK_STRING (table); | |
3015 | ||
eb3d9ec7 KH |
3016 | if (! multibyte && (SCHARS (table) < SBYTES (table))) |
3017 | table = string_make_unibyte (table); | |
8583605b KH |
3018 | string_multibyte = SCHARS (table) < SBYTES (table); |
3019 | size = SBYTES (table); | |
3020 | tt = SDATA (table); | |
3021 | } | |
35692fe0 | 3022 | |
1f24f4fd | 3023 | pos = XINT (start); |
8583605b | 3024 | pos_byte = CHAR_TO_BYTE (pos); |
e65837df | 3025 | end_pos = XINT (end); |
af6ea8ad | 3026 | modify_region (current_buffer, pos, end_pos, 0); |
35692fe0 JB |
3027 | |
3028 | cnt = 0; | |
f555f8cf | 3029 | for (; pos < end_pos; ) |
35692fe0 | 3030 | { |
ec1c14f6 | 3031 | register unsigned char *p = BYTE_POS_ADDR (pos_byte); |
8583605b KH |
3032 | unsigned char *str, buf[MAX_MULTIBYTE_LENGTH]; |
3033 | int len, str_len; | |
1f24f4fd | 3034 | int oc; |
f555f8cf | 3035 | Lisp_Object val; |
ec1c14f6 | 3036 | |
e8cce5af | 3037 | if (multibyte) |
eb3d9ec7 | 3038 | oc = STRING_CHAR_AND_LENGTH (p, MAX_MULTIBYTE_LENGTH, len); |
e8cce5af | 3039 | else |
eb3d9ec7 KH |
3040 | oc = *p, len = 1; |
3041 | if (oc < size) | |
35692fe0 | 3042 | { |
eb3d9ec7 | 3043 | if (tt) |
35692fe0 | 3044 | { |
fa056b08 KS |
3045 | /* Reload as signal_after_change in last iteration may GC. */ |
3046 | tt = SDATA (table); | |
8583605b | 3047 | if (string_multibyte) |
0c1e3b85 | 3048 | { |
8583605b | 3049 | str = tt + string_char_to_byte (table, oc); |
7a6a86ad | 3050 | nc = STRING_CHAR_AND_LENGTH (str, MAX_MULTIBYTE_LENGTH, |
eb3d9ec7 | 3051 | str_len); |
0c1e3b85 RS |
3052 | } |
3053 | else | |
3054 | { | |
eb3d9ec7 KH |
3055 | nc = tt[oc]; |
3056 | if (! ASCII_BYTE_P (nc) && multibyte) | |
3057 | { | |
3058 | str_len = BYTE8_STRING (nc, buf); | |
3059 | str = buf; | |
3060 | } | |
3061 | else | |
3062 | { | |
3063 | str_len = 1; | |
3064 | str = tt + oc; | |
3065 | } | |
0c1e3b85 | 3066 | } |
35692fe0 | 3067 | } |
eb3d9ec7 | 3068 | else |
f555f8cf | 3069 | { |
eb3d9ec7 KH |
3070 | int c; |
3071 | ||
3072 | nc = oc; | |
3073 | val = CHAR_TABLE_REF (table, oc); | |
3074 | if (CHARACTERP (val) | |
3075 | && (c = XINT (val), CHAR_VALID_P (c, 0))) | |
3076 | { | |
3077 | nc = c; | |
3078 | str_len = CHAR_STRING (nc, buf); | |
3079 | str = buf; | |
3080 | } | |
3081 | else if (VECTORP (val) || (CONSP (val))) | |
3082 | { | |
3083 | /* VAL is [TO_CHAR ...] or (([FROM-CHAR ...] . TO) ...) | |
3084 | where TO is TO-CHAR or [TO-CHAR ...]. */ | |
3085 | nc = -1; | |
3086 | } | |
f555f8cf | 3087 | } |
8583605b | 3088 | |
eb3d9ec7 | 3089 | if (nc != oc && nc >= 0) |
8583605b | 3090 | { |
f555f8cf KH |
3091 | /* Simple one char to one char translation. */ |
3092 | if (len != str_len) | |
3093 | { | |
3094 | Lisp_Object string; | |
8583605b | 3095 | |
f555f8cf KH |
3096 | /* This is less efficient, because it moves the gap, |
3097 | but it should handle multibyte characters correctly. */ | |
3098 | string = make_multibyte_string (str, 1, str_len); | |
3099 | replace_range (pos, pos + 1, string, 1, 0, 1); | |
3100 | len = str_len; | |
3101 | } | |
3102 | else | |
3103 | { | |
3104 | record_change (pos, 1); | |
3105 | while (str_len-- > 0) | |
3106 | *p++ = *str++; | |
3107 | signal_after_change (pos, 1, 1); | |
3108 | update_compositions (pos, pos + 1, CHECK_BORDER); | |
3109 | } | |
3110 | ++cnt; | |
8583605b | 3111 | } |
eb3d9ec7 | 3112 | else if (nc < 0) |
8583605b | 3113 | { |
f555f8cf KH |
3114 | Lisp_Object string; |
3115 | ||
3116 | if (CONSP (val)) | |
3117 | { | |
3118 | val = check_translation (pos, pos_byte, end_pos, val); | |
3119 | if (NILP (val)) | |
3120 | { | |
3121 | pos_byte += len; | |
3122 | pos++; | |
3123 | continue; | |
3124 | } | |
3125 | /* VAL is ([FROM-CHAR ...] . TO). */ | |
3126 | len = ASIZE (XCAR (val)); | |
3127 | val = XCDR (val); | |
3128 | } | |
3129 | else | |
3130 | len = 1; | |
3131 | ||
3132 | if (VECTORP (val)) | |
3133 | { | |
3134 | int i; | |
3135 | ||
3136 | string = Fmake_string (make_number (ASIZE (val)), | |
3137 | AREF (val, 0)); | |
3138 | for (i = 1; i < ASIZE (val); i++) | |
3139 | Faset (string, make_number (i), AREF (val, i)); | |
3140 | } | |
3141 | else | |
3142 | { | |
3143 | string = Fmake_string (make_number (1), val); | |
3144 | } | |
3145 | replace_range (pos, pos + len, string, 1, 0, 1); | |
3146 | pos_byte += SBYTES (string); | |
3147 | pos += SCHARS (string); | |
3148 | cnt += SCHARS (string); | |
3149 | end_pos += SCHARS (string) - len; | |
3150 | continue; | |
8583605b | 3151 | } |
8583605b KH |
3152 | } |
3153 | pos_byte += len; | |
3f5409d3 | 3154 | pos++; |
35692fe0 JB |
3155 | } |
3156 | ||
ec1c14f6 | 3157 | return make_number (cnt); |
35692fe0 JB |
3158 | } |
3159 | ||
3160 | DEFUN ("delete-region", Fdelete_region, Sdelete_region, 2, 2, "r", | |
7ee72033 | 3161 | doc: /* Delete the text between point and mark. |
412f1fab | 3162 | |
a1f17501 | 3163 | When called from a program, expects two arguments, |
7ee72033 MB |
3164 | positions (integers or markers) specifying the stretch to be deleted. */) |
3165 | (start, end) | |
2591ec64 | 3166 | Lisp_Object start, end; |
35692fe0 | 3167 | { |
2591ec64 EN |
3168 | validate_region (&start, &end); |
3169 | del_range (XINT (start), XINT (end)); | |
35692fe0 JB |
3170 | return Qnil; |
3171 | } | |
7dae4502 SM |
3172 | |
3173 | DEFUN ("delete-and-extract-region", Fdelete_and_extract_region, | |
3174 | Sdelete_and_extract_region, 2, 2, 0, | |
7ee72033 MB |
3175 | doc: /* Delete the text between START and END and return it. */) |
3176 | (start, end) | |
7dae4502 SM |
3177 | Lisp_Object start, end; |
3178 | { | |
3179 | validate_region (&start, &end); | |
8550b998 | 3180 | if (XINT (start) == XINT (end)) |
977f6cfb | 3181 | return empty_unibyte_string; |
7dae4502 SM |
3182 | return del_range_1 (XINT (start), XINT (end), 1, 1); |
3183 | } | |
35692fe0 JB |
3184 | \f |
3185 | DEFUN ("widen", Fwiden, Swiden, 0, 0, "", | |
7ee72033 MB |
3186 | doc: /* Remove restrictions (narrowing) from current buffer. |
3187 | This allows the buffer's full text to be seen and edited. */) | |
3188 | () | |
35692fe0 | 3189 | { |
2cad2e34 RS |
3190 | if (BEG != BEGV || Z != ZV) |
3191 | current_buffer->clip_changed = 1; | |
35692fe0 | 3192 | BEGV = BEG; |
ec1c14f6 RS |
3193 | BEGV_BYTE = BEG_BYTE; |
3194 | SET_BUF_ZV_BOTH (current_buffer, Z, Z_BYTE); | |
52b14ac0 JB |
3195 | /* Changing the buffer bounds invalidates any recorded current column. */ |
3196 | invalidate_current_column (); | |
35692fe0 JB |
3197 | return Qnil; |
3198 | } | |
3199 | ||
3200 | DEFUN ("narrow-to-region", Fnarrow_to_region, Snarrow_to_region, 2, 2, "r", | |
7ee72033 | 3201 | doc: /* Restrict editing in this buffer to the current region. |
a1f17501 PJ |
3202 | The rest of the text becomes temporarily invisible and untouchable |
3203 | but is not deleted; if you save the buffer in a file, the invisible | |
3204 | text is included in the file. \\[widen] makes all visible again. | |
3205 | See also `save-restriction'. | |
3206 | ||
3207 | When calling from a program, pass two arguments; positions (integers | |
7ee72033 MB |
3208 | or markers) bounding the text that should remain visible. */) |
3209 | (start, end) | |
2591ec64 | 3210 | register Lisp_Object start, end; |
35692fe0 | 3211 | { |
b7826503 PJ |
3212 | CHECK_NUMBER_COERCE_MARKER (start); |
3213 | CHECK_NUMBER_COERCE_MARKER (end); | |
35692fe0 | 3214 | |
2591ec64 | 3215 | if (XINT (start) > XINT (end)) |
35692fe0 | 3216 | { |
b5a6948e | 3217 | Lisp_Object tem; |
2591ec64 | 3218 | tem = start; start = end; end = tem; |
35692fe0 JB |
3219 | } |
3220 | ||
2591ec64 EN |
3221 | if (!(BEG <= XINT (start) && XINT (start) <= XINT (end) && XINT (end) <= Z)) |
3222 | args_out_of_range (start, end); | |
35692fe0 | 3223 | |
2cad2e34 RS |
3224 | if (BEGV != XFASTINT (start) || ZV != XFASTINT (end)) |
3225 | current_buffer->clip_changed = 1; | |
3226 | ||
ec1c14f6 | 3227 | SET_BUF_BEGV (current_buffer, XFASTINT (start)); |
2591ec64 | 3228 | SET_BUF_ZV (current_buffer, XFASTINT (end)); |
6ec8bbd2 | 3229 | if (PT < XFASTINT (start)) |
2591ec64 | 3230 | SET_PT (XFASTINT (start)); |
6ec8bbd2 | 3231 | if (PT > XFASTINT (end)) |
2591ec64 | 3232 | SET_PT (XFASTINT (end)); |
52b14ac0 JB |
3233 | /* Changing the buffer bounds invalidates any recorded current column. */ |
3234 | invalidate_current_column (); | |
35692fe0 JB |
3235 | return Qnil; |
3236 | } | |
3237 | ||
3238 | Lisp_Object | |
3239 | save_restriction_save () | |
3240 | { | |
d6abb4c7 MB |
3241 | if (BEGV == BEG && ZV == Z) |
3242 | /* The common case that the buffer isn't narrowed. | |
3243 | We return just the buffer object, which save_restriction_restore | |
3244 | recognizes as meaning `no restriction'. */ | |
3245 | return Fcurrent_buffer (); | |
3246 | else | |
3247 | /* We have to save a restriction, so return a pair of markers, one | |
3248 | for the beginning and one for the end. */ | |
3249 | { | |
3250 | Lisp_Object beg, end; | |
3251 | ||
3252 | beg = buildmark (BEGV, BEGV_BYTE); | |
3253 | end = buildmark (ZV, ZV_BYTE); | |
35692fe0 | 3254 | |
d6abb4c7 MB |
3255 | /* END must move forward if text is inserted at its exact location. */ |
3256 | XMARKER(end)->insertion_type = 1; | |
3257 | ||
3258 | return Fcons (beg, end); | |
3259 | } | |
35692fe0 JB |
3260 | } |
3261 | ||
3262 | Lisp_Object | |
3263 | save_restriction_restore (data) | |
3264 | Lisp_Object data; | |
3265 | { | |
d6abb4c7 MB |
3266 | if (CONSP (data)) |
3267 | /* A pair of marks bounding a saved restriction. */ | |
35692fe0 | 3268 | { |
d6abb4c7 MB |
3269 | struct Lisp_Marker *beg = XMARKER (XCAR (data)); |
3270 | struct Lisp_Marker *end = XMARKER (XCDR (data)); | |
3271 | struct buffer *buf = beg->buffer; /* END should have the same buffer. */ | |
2cad2e34 | 3272 | |
63884563 RS |
3273 | if (buf /* Verify marker still points to a buffer. */ |
3274 | && (beg->charpos != BUF_BEGV (buf) || end->charpos != BUF_ZV (buf))) | |
d6abb4c7 MB |
3275 | /* The restriction has changed from the saved one, so restore |
3276 | the saved restriction. */ | |
3277 | { | |
3278 | int pt = BUF_PT (buf); | |
3279 | ||
3280 | SET_BUF_BEGV_BOTH (buf, beg->charpos, beg->bytepos); | |
3281 | SET_BUF_ZV_BOTH (buf, end->charpos, end->bytepos); | |
3282 | ||
3283 | if (pt < beg->charpos || pt > end->charpos) | |
3284 | /* The point is outside the new visible range, move it inside. */ | |
3285 | SET_BUF_PT_BOTH (buf, | |
3286 | clip_to_bounds (beg->charpos, pt, end->charpos), | |
63884563 | 3287 | clip_to_bounds (beg->bytepos, BUF_PT_BYTE (buf), |
d6abb4c7 | 3288 | end->bytepos)); |
177c0ea7 | 3289 | |
d6abb4c7 MB |
3290 | buf->clip_changed = 1; /* Remember that the narrowing changed. */ |
3291 | } | |
3292 | } | |
3293 | else | |
3294 | /* A buffer, which means that there was no old restriction. */ | |
3295 | { | |
3296 | struct buffer *buf = XBUFFER (data); | |
2cad2e34 | 3297 | |
63884563 RS |
3298 | if (buf /* Verify marker still points to a buffer. */ |
3299 | && (BUF_BEGV (buf) != BUF_BEG (buf) || BUF_ZV (buf) != BUF_Z (buf))) | |
d6abb4c7 MB |
3300 | /* The buffer has been narrowed, get rid of the narrowing. */ |
3301 | { | |
63884563 RS |
3302 | SET_BUF_BEGV_BOTH (buf, BUF_BEG (buf), BUF_BEG_BYTE (buf)); |
3303 | SET_BUF_ZV_BOTH (buf, BUF_Z (buf), BUF_Z_BYTE (buf)); | |
35692fe0 | 3304 | |
d6abb4c7 MB |
3305 | buf->clip_changed = 1; /* Remember that the narrowing changed. */ |
3306 | } | |
3307 | } | |
35692fe0 JB |
3308 | |
3309 | return Qnil; | |
3310 | } | |
3311 | ||
3312 | DEFUN ("save-restriction", Fsave_restriction, Ssave_restriction, 0, UNEVALLED, 0, | |
7ee72033 | 3313 | doc: /* Execute BODY, saving and restoring current buffer's restrictions. |
a1f17501 | 3314 | The buffer's restrictions make parts of the beginning and end invisible. |
9671c13a | 3315 | \(They are set up with `narrow-to-region' and eliminated with `widen'.) |
a1f17501 PJ |
3316 | This special form, `save-restriction', saves the current buffer's restrictions |
3317 | when it is entered, and restores them when it is exited. | |
3318 | So any `narrow-to-region' within BODY lasts only until the end of the form. | |
3319 | The old restrictions settings are restored | |
3320 | even in case of abnormal exit (throw or error). | |
3321 | ||
3322 | The value returned is the value of the last form in BODY. | |
3323 | ||
3324 | Note: if you are using both `save-excursion' and `save-restriction', | |
3325 | use `save-excursion' outermost: | |
33c2d29f MB |
3326 | (save-excursion (save-restriction ...)) |
3327 | ||
3328 | usage: (save-restriction &rest BODY) */) | |
7ee72033 | 3329 | (body) |
35692fe0 JB |
3330 | Lisp_Object body; |
3331 | { | |
3332 | register Lisp_Object val; | |
aed13378 | 3333 | int count = SPECPDL_INDEX (); |
35692fe0 JB |
3334 | |
3335 | record_unwind_protect (save_restriction_restore, save_restriction_save ()); | |
3336 | val = Fprogn (body); | |
3337 | return unbind_to (count, val); | |
3338 | } | |
3339 | \f | |
0ae83348 | 3340 | /* Buffer for the most recent text displayed by Fmessage_box. */ |
671fbc4d KH |
3341 | static char *message_text; |
3342 | ||
3343 | /* Allocated length of that buffer. */ | |
3344 | static int message_length; | |
3345 | ||
35692fe0 | 3346 | DEFUN ("message", Fmessage, Smessage, 1, MANY, 0, |
db18da59 | 3347 | doc: /* Display a message at the bottom of the screen. |
281c1721 RS |
3348 | The message also goes into the `*Messages*' buffer. |
3349 | \(In keyboard macros, that's all it does.) | |
db18da59 | 3350 | Return the message. |
281c1721 | 3351 | |
a1f17501 PJ |
3352 | The first argument is a format control string, and the rest are data |
3353 | to be formatted under control of the string. See `format' for details. | |
3354 | ||
7bd5bcfb KS |
3355 | Note: Use (message "%s" VALUE) to print the value of expressions and |
3356 | variables to avoid accidentally interpreting `%' as format specifiers. | |
3357 | ||
fa056b08 KS |
3358 | If the first argument is nil or the empty string, the function clears |
3359 | any existing message; this lets the minibuffer contents show. See | |
3360 | also `current-message'. | |
4bfbe194 | 3361 | |
867b9600 | 3362 | usage: (message FORMAT-STRING &rest ARGS) */) |
7ee72033 | 3363 | (nargs, args) |
35692fe0 JB |
3364 | int nargs; |
3365 | Lisp_Object *args; | |
3366 | { | |
6076e561 RS |
3367 | if (NILP (args[0]) |
3368 | || (STRINGP (args[0]) | |
3369 | && SBYTES (args[0]) == 0)) | |
f0250249 JB |
3370 | { |
3371 | message (0); | |
674a954a | 3372 | return args[0]; |
f0250249 | 3373 | } |
ccdac5be JB |
3374 | else |
3375 | { | |
3376 | register Lisp_Object val; | |
304f1f12 | 3377 | val = Fformat (nargs, args); |
d5db4077 | 3378 | message3 (val, SBYTES (val), STRING_MULTIBYTE (val)); |
ccdac5be JB |
3379 | return val; |
3380 | } | |
35692fe0 JB |
3381 | } |
3382 | ||
cacc3e2c | 3383 | DEFUN ("message-box", Fmessage_box, Smessage_box, 1, MANY, 0, |
7ee72033 | 3384 | doc: /* Display a message, in a dialog box if possible. |
a1f17501 PJ |
3385 | If a dialog box is not available, use the echo area. |
3386 | The first argument is a format control string, and the rest are data | |
3387 | to be formatted under control of the string. See `format' for details. | |
3388 | ||
fa056b08 KS |
3389 | If the first argument is nil or the empty string, clear any existing |
3390 | message; let the minibuffer contents show. | |
4bfbe194 | 3391 | |
867b9600 | 3392 | usage: (message-box FORMAT-STRING &rest ARGS) */) |
7ee72033 | 3393 | (nargs, args) |
cacc3e2c RS |
3394 | int nargs; |
3395 | Lisp_Object *args; | |
3396 | { | |
3397 | if (NILP (args[0])) | |
3398 | { | |
3399 | message (0); | |
3400 | return Qnil; | |
3401 | } | |
3402 | else | |
3403 | { | |
3404 | register Lisp_Object val; | |
3405 | val = Fformat (nargs, args); | |
f8250f01 | 3406 | #ifdef HAVE_MENUS |
0ae83348 EZ |
3407 | /* The MS-DOS frames support popup menus even though they are |
3408 | not FRAME_WINDOW_P. */ | |
3409 | if (FRAME_WINDOW_P (XFRAME (selected_frame)) | |
3410 | || FRAME_MSDOS_P (XFRAME (selected_frame))) | |
cacc3e2c RS |
3411 | { |
3412 | Lisp_Object pane, menu, obj; | |
3413 | struct gcpro gcpro1; | |
3414 | pane = Fcons (Fcons (build_string ("OK"), Qt), Qnil); | |
3415 | GCPRO1 (pane); | |
3416 | menu = Fcons (val, pane); | |
87944384 | 3417 | obj = Fx_popup_dialog (Qt, menu, Qt); |
cacc3e2c RS |
3418 | UNGCPRO; |
3419 | return val; | |
3420 | } | |
0ae83348 | 3421 | #endif /* HAVE_MENUS */ |
cacc3e2c RS |
3422 | /* Copy the data so that it won't move when we GC. */ |
3423 | if (! message_text) | |
3424 | { | |
3425 | message_text = (char *)xmalloc (80); | |
3426 | message_length = 80; | |
3427 | } | |
d5db4077 | 3428 | if (SBYTES (val) > message_length) |
cacc3e2c | 3429 | { |
d5db4077 | 3430 | message_length = SBYTES (val); |
cacc3e2c RS |
3431 | message_text = (char *)xrealloc (message_text, message_length); |
3432 | } | |
d5db4077 KR |
3433 | bcopy (SDATA (val), message_text, SBYTES (val)); |
3434 | message2 (message_text, SBYTES (val), | |
d13a8480 | 3435 | STRING_MULTIBYTE (val)); |
cacc3e2c | 3436 | return val; |
cacc3e2c RS |
3437 | } |
3438 | } | |
f8250f01 | 3439 | #ifdef HAVE_MENUS |
cacc3e2c RS |
3440 | extern Lisp_Object last_nonmenu_event; |
3441 | #endif | |
f8250f01 | 3442 | |
cacc3e2c | 3443 | DEFUN ("message-or-box", Fmessage_or_box, Smessage_or_box, 1, MANY, 0, |
7ee72033 | 3444 | doc: /* Display a message in a dialog box or in the echo area. |
a1f17501 PJ |
3445 | If this command was invoked with the mouse, use a dialog box if |
3446 | `use-dialog-box' is non-nil. | |
3447 | Otherwise, use the echo area. | |
3448 | The first argument is a format control string, and the rest are data | |
3449 | to be formatted under control of the string. See `format' for details. | |
3450 | ||
fa056b08 KS |
3451 | If the first argument is nil or the empty string, clear any existing |
3452 | message; let the minibuffer contents show. | |
4bfbe194 | 3453 | |
867b9600 | 3454 | usage: (message-or-box FORMAT-STRING &rest ARGS) */) |
7ee72033 | 3455 | (nargs, args) |
cacc3e2c RS |
3456 | int nargs; |
3457 | Lisp_Object *args; | |
3458 | { | |
f8250f01 | 3459 | #ifdef HAVE_MENUS |
5920df33 | 3460 | if ((NILP (last_nonmenu_event) || CONSP (last_nonmenu_event)) |
c01fbf95 | 3461 | && use_dialog_box) |
0a56ee6b | 3462 | return Fmessage_box (nargs, args); |
cacc3e2c RS |
3463 | #endif |
3464 | return Fmessage (nargs, args); | |
3465 | } | |
3466 | ||
b14dda8a | 3467 | DEFUN ("current-message", Fcurrent_message, Scurrent_message, 0, 0, 0, |
7ee72033 MB |
3468 | doc: /* Return the string currently displayed in the echo area, or nil if none. */) |
3469 | () | |
b14dda8a | 3470 | { |
0634a78e | 3471 | return current_message (); |
b14dda8a RS |
3472 | } |
3473 | ||
2d9811c4 | 3474 | |
d2936d21 | 3475 | DEFUN ("propertize", Fpropertize, Spropertize, 1, MANY, 0, |
7ee72033 | 3476 | doc: /* Return a copy of STRING with text properties added. |
a1f17501 PJ |
3477 | First argument is the string to copy. |
3478 | Remaining arguments form a sequence of PROPERTY VALUE pairs for text | |
4bfbe194 MB |
3479 | properties to add to the result. |
3480 | usage: (propertize STRING &rest PROPERTIES) */) | |
7ee72033 | 3481 | (nargs, args) |
2d9811c4 GM |
3482 | int nargs; |
3483 | Lisp_Object *args; | |
3484 | { | |
3485 | Lisp_Object properties, string; | |
3486 | struct gcpro gcpro1, gcpro2; | |
3487 | int i; | |
3488 | ||
3489 | /* Number of args must be odd. */ | |
d2936d21 | 3490 | if ((nargs & 1) == 0 || nargs < 1) |
2d9811c4 GM |
3491 | error ("Wrong number of arguments"); |
3492 | ||
3493 | properties = string = Qnil; | |
3494 | GCPRO2 (properties, string); | |
34a7a267 | 3495 | |
2d9811c4 | 3496 | /* First argument must be a string. */ |
b7826503 | 3497 | CHECK_STRING (args[0]); |
2d9811c4 GM |
3498 | string = Fcopy_sequence (args[0]); |
3499 | ||
3500 | for (i = 1; i < nargs; i += 2) | |
9b7a2369 | 3501 | properties = Fcons (args[i], Fcons (args[i + 1], properties)); |
2d9811c4 GM |
3502 | |
3503 | Fadd_text_properties (make_number (0), | |
d5db4077 | 3504 | make_number (SCHARS (string)), |
2d9811c4 GM |
3505 | properties, string); |
3506 | RETURN_UNGCPRO (string); | |
3507 | } | |
3508 | ||
3509 | ||
1f24f4fd RS |
3510 | /* Number of bytes that STRING will occupy when put into the result. |
3511 | MULTIBYTE is nonzero if the result should be multibyte. */ | |
3512 | ||
3513 | #define CONVERTED_BYTE_SIZE(MULTIBYTE, STRING) \ | |
3514 | (((MULTIBYTE) && ! STRING_MULTIBYTE (STRING)) \ | |
d5db4077 KR |
3515 | ? count_size_as_multibyte (SDATA (STRING), SBYTES (STRING)) \ |
3516 | : SBYTES (STRING)) | |
1f24f4fd | 3517 | |
35692fe0 | 3518 | DEFUN ("format", Fformat, Sformat, 1, MANY, 0, |
867b9600 JL |
3519 | doc: /* Format a string out of a format-string and arguments. |
3520 | The first argument is a format control string. | |
a1f17501 | 3521 | The other arguments are substituted into it to make the result, a string. |
575b782f CY |
3522 | |
3523 | The format control string may contain %-sequences meaning to substitute | |
3524 | the next available argument: | |
3525 | ||
a1f17501 PJ |
3526 | %s means print a string argument. Actually, prints any object, with `princ'. |
3527 | %d means print as number in decimal (%o octal, %x hex). | |
3528 | %X is like %x, but uses upper case. | |
3529 | %e means print a number in exponential notation. | |
3530 | %f means print a number in decimal-point notation. | |
3531 | %g means print a number in exponential notation | |
3532 | or decimal-point notation, whichever uses fewer characters. | |
3533 | %c means print a number as a single character. | |
3534 | %S means print any object as an s-expression (using `prin1'). | |
575b782f CY |
3535 | |
3536 | The argument used for %d, %o, %x, %e, %f, %g or %c must be a number. | |
4bfbe194 MB |
3537 | Use %% to put a single % into the output. |
3538 | ||
575b782f CY |
3539 | A %-sequence may contain optional flag, width, and precision |
3540 | specifiers, as follows: | |
3541 | ||
3542 | %<flags><width><precision>character | |
3543 | ||
3544 | where flags is [+ #-0]+, width is [0-9]+, and precision is .[0-9]+ | |
3545 | ||
3546 | The + flag character inserts a + before any positive number, while a | |
3547 | space inserts a space before any positive number; these flags only | |
3548 | affect %d, %e, %f, and %g sequences, and the + flag takes precedence. | |
3549 | The # flag means to use an alternate display form for %o, %x, %X, %e, | |
3550 | %f, and %g sequences. The - and 0 flags affect the width specifier, | |
3551 | as described below. | |
3552 | ||
3553 | The width specifier supplies a lower limit for the length of the | |
3554 | printed representation. The padding, if any, normally goes on the | |
3555 | left, but it goes on the right if the - flag is present. The padding | |
3556 | character is normally a space, but it is 0 if the 0 flag is present. | |
3557 | The - flag takes precedence over the 0 flag. | |
3558 | ||
3559 | For %e, %f, and %g sequences, the number after the "." in the | |
3560 | precision specifier says how many decimal places to show; if zero, the | |
3561 | decimal point itself is omitted. For %s and %S, the precision | |
3562 | specifier truncates the string to the given width. | |
f555f8cf | 3563 | |
4bfbe194 | 3564 | usage: (format STRING &rest OBJECTS) */) |
7ee72033 | 3565 | (nargs, args) |
35692fe0 JB |
3566 | int nargs; |
3567 | register Lisp_Object *args; | |
3568 | { | |
3569 | register int n; /* The number of the next arg to substitute */ | |
e781c49e | 3570 | register int total; /* An estimate of the final length */ |
1f24f4fd | 3571 | char *buf, *p; |
d147ee84 | 3572 | register unsigned char *format, *end, *format_start; |
2ea0266e | 3573 | int nchars; |
1f24f4fd RS |
3574 | /* Nonzero if the output should be a multibyte string, |
3575 | which is true if any of the inputs is one. */ | |
3576 | int multibyte = 0; | |
8f2917e4 KH |
3577 | /* When we make a multibyte string, we must pay attention to the |
3578 | byte combining problem, i.e., a byte may be combined with a | |
3579 | multibyte charcter of the previous string. This flag tells if we | |
3580 | must consider such a situation or not. */ | |
3581 | int maybe_combine_byte; | |
1f24f4fd | 3582 | unsigned char *this_format; |
ac42d7b9 KG |
3583 | /* Precision for each spec, or -1, a flag value meaning no precision |
3584 | was given in that spec. Element 0, corresonding to the format | |
3585 | string itself, will not be used. Element NARGS, corresponding to | |
3586 | no argument, *will* be assigned to in the case that a `%' and `.' | |
3587 | occur after the final format specifier. */ | |
6b61353c | 3588 | int *precision = (int *) (alloca((nargs + 1) * sizeof (int))); |
e781c49e | 3589 | int longest_format; |
8d6179dc | 3590 | Lisp_Object val; |
d147ee84 | 3591 | int arg_intervals = 0; |
7e2c051b | 3592 | USE_SAFE_ALLOCA; |
d147ee84 RS |
3593 | |
3594 | /* discarded[I] is 1 if byte I of the format | |
3595 | string was not copied into the output. | |
3596 | It is 2 if byte I was not the first byte of its character. */ | |
e65837df | 3597 | char *discarded = 0; |
d147ee84 RS |
3598 | |
3599 | /* Each element records, for one argument, | |
3600 | the start and end bytepos in the output string, | |
3601 | and whether the argument is a string with intervals. | |
3602 | info[0] is unused. Unused elements have -1 for start. */ | |
5e6d5493 GM |
3603 | struct info |
3604 | { | |
d147ee84 | 3605 | int start, end, intervals; |
5e6d5493 | 3606 | } *info = 0; |
1f24f4fd | 3607 | |
35692fe0 JB |
3608 | /* It should not be necessary to GCPRO ARGS, because |
3609 | the caller in the interpreter should take care of that. */ | |
3610 | ||
e781c49e RS |
3611 | /* Try to determine whether the result should be multibyte. |
3612 | This is not always right; sometimes the result needs to be multibyte | |
3613 | because of an object that we will pass through prin1, | |
3614 | and in that case, we won't know it here. */ | |
d147ee84 RS |
3615 | for (n = 0; n < nargs; n++) |
3616 | { | |
3617 | if (STRINGP (args[n]) && STRING_MULTIBYTE (args[n])) | |
3618 | multibyte = 1; | |
3619 | /* Piggyback on this loop to initialize precision[N]. */ | |
3620 | precision[n] = -1; | |
3621 | } | |
7c111482 | 3622 | precision[nargs] = -1; |
1f24f4fd | 3623 | |
b7826503 | 3624 | CHECK_STRING (args[0]); |
aa8b70ae KH |
3625 | /* We may have to change "%S" to "%s". */ |
3626 | args[0] = Fcopy_sequence (args[0]); | |
e781c49e | 3627 | |
67965a98 RS |
3628 | /* GC should never happen here, so abort if it does. */ |
3629 | abort_on_gc++; | |
3630 | ||
e781c49e | 3631 | /* If we start out planning a unibyte result, |
67965a98 RS |
3632 | then discover it has to be multibyte, we jump back to retry. |
3633 | That can only happen from the first large while loop below. */ | |
e781c49e RS |
3634 | retry: |
3635 | ||
d5db4077 | 3636 | format = SDATA (args[0]); |
d147ee84 | 3637 | format_start = format; |
d5db4077 | 3638 | end = format + SBYTES (args[0]); |
e781c49e | 3639 | longest_format = 0; |
1f24f4fd RS |
3640 | |
3641 | /* Make room in result for all the non-%-codes in the control string. */ | |
7e2c051b | 3642 | total = 5 + CONVERTED_BYTE_SIZE (multibyte, args[0]) + 1; |
1f24f4fd | 3643 | |
6b61353c | 3644 | /* Allocate the info and discarded tables. */ |
d147ee84 | 3645 | { |
7c111482 | 3646 | int nbytes = (nargs+1) * sizeof *info; |
d147ee84 | 3647 | int i; |
e65837df KS |
3648 | if (!info) |
3649 | info = (struct info *) alloca (nbytes); | |
d147ee84 | 3650 | bzero (info, nbytes); |
7c111482 | 3651 | for (i = 0; i <= nargs; i++) |
d147ee84 | 3652 | info[i].start = -1; |
e65837df KS |
3653 | if (!discarded) |
3654 | SAFE_ALLOCA (discarded, char *, SBYTES (args[0])); | |
d147ee84 RS |
3655 | bzero (discarded, SBYTES (args[0])); |
3656 | } | |
3657 | ||
1f24f4fd | 3658 | /* Add to TOTAL enough space to hold the converted arguments. */ |
35692fe0 JB |
3659 | |
3660 | n = 0; | |
3661 | while (format != end) | |
3662 | if (*format++ == '%') | |
3663 | { | |
a432bfe5 | 3664 | int thissize = 0; |
308dd672 | 3665 | int actual_width = 0; |
1f24f4fd | 3666 | unsigned char *this_format_start = format - 1; |
ac42d7b9 | 3667 | int field_width = 0; |
35692fe0 | 3668 | |
a432bfe5 | 3669 | /* General format specifications look like |
537dfb13 | 3670 | |
a432bfe5 GM |
3671 | '%' [flags] [field-width] [precision] format |
3672 | ||
3673 | where | |
3674 | ||
cb06e570 | 3675 | flags ::= [-+ #0]+ |
a432bfe5 GM |
3676 | field-width ::= [0-9]+ |
3677 | precision ::= '.' [0-9]* | |
3678 | ||
3679 | If a field-width is specified, it specifies to which width | |
e0f24100 | 3680 | the output should be padded with blanks, if the output |
a432bfe5 GM |
3681 | string is shorter than field-width. |
3682 | ||
ac42d7b9 | 3683 | If precision is specified, it specifies the number of |
a432bfe5 GM |
3684 | digits to print after the '.' for floats, or the max. |
3685 | number of chars to print from a string. */ | |
3686 | ||
913f73d4 RS |
3687 | while (format != end |
3688 | && (*format == '-' || *format == '0' || *format == '#' | |
cb06e570 | 3689 | || * format == ' ' || *format == '+')) |
a432bfe5 GM |
3690 | ++format; |
3691 | ||
3692 | if (*format >= '0' && *format <= '9') | |
3693 | { | |
3694 | for (field_width = 0; *format >= '0' && *format <= '9'; ++format) | |
3695 | field_width = 10 * field_width + *format - '0'; | |
3696 | } | |
3697 | ||
ac42d7b9 KG |
3698 | /* N is not incremented for another few lines below, so refer to |
3699 | element N+1 (which might be precision[NARGS]). */ | |
a432bfe5 GM |
3700 | if (*format == '.') |
3701 | { | |
3702 | ++format; | |
ac42d7b9 KG |
3703 | for (precision[n+1] = 0; *format >= '0' && *format <= '9'; ++format) |
3704 | precision[n+1] = 10 * precision[n+1] + *format - '0'; | |
a432bfe5 | 3705 | } |
35692fe0 | 3706 | |
6e1ada1b AS |
3707 | /* Extra +1 for 'l' that we may need to insert into the |
3708 | format. */ | |
3709 | if (format - this_format_start + 2 > longest_format) | |
3710 | longest_format = format - this_format_start + 2; | |
1f24f4fd | 3711 | |
bf6ab66c KH |
3712 | if (format == end) |
3713 | error ("Format string ends in middle of format specifier"); | |
35692fe0 JB |
3714 | if (*format == '%') |
3715 | format++; | |
3716 | else if (++n >= nargs) | |
537dfb13 | 3717 | error ("Not enough arguments for format string"); |
35692fe0 JB |
3718 | else if (*format == 'S') |
3719 | { | |
3720 | /* For `S', prin1 the argument and then treat like a string. */ | |
3721 | register Lisp_Object tem; | |
3722 | tem = Fprin1_to_string (args[n], Qnil); | |
e781c49e RS |
3723 | if (STRING_MULTIBYTE (tem) && ! multibyte) |
3724 | { | |
3725 | multibyte = 1; | |
3726 | goto retry; | |
3727 | } | |
35692fe0 | 3728 | args[n] = tem; |
aa8b70ae KH |
3729 | /* If we restart the loop, we should not come here again |
3730 | because args[n] is now a string and calling | |
3731 | Fprin1_to_string on it produces superflous double | |
3732 | quotes. So, change "%S" to "%s" now. */ | |
3733 | *format = 's'; | |
35692fe0 JB |
3734 | goto string; |
3735 | } | |
ae683129 | 3736 | else if (SYMBOLP (args[n])) |
35692fe0 | 3737 | { |
1e5d9116 | 3738 | args[n] = SYMBOL_NAME (args[n]); |
7df74da6 RS |
3739 | if (STRING_MULTIBYTE (args[n]) && ! multibyte) |
3740 | { | |
3741 | multibyte = 1; | |
3742 | goto retry; | |
3743 | } | |
35692fe0 JB |
3744 | goto string; |
3745 | } | |
ae683129 | 3746 | else if (STRINGP (args[n])) |
35692fe0 JB |
3747 | { |
3748 | string: | |
b22e7ecc | 3749 | if (*format != 's' && *format != 'S') |
bf6ab66c | 3750 | error ("Format specifier doesn't match argument type"); |
ac42d7b9 KG |
3751 | /* In the case (PRECISION[N] > 0), THISSIZE may not need |
3752 | to be as large as is calculated here. Easy check for | |
3753 | the case PRECISION = 0. */ | |
3754 | thissize = precision[n] ? CONVERTED_BYTE_SIZE (multibyte, args[n]) : 0; | |
308dd672 | 3755 | actual_width = lisp_string_width (args[n], -1, NULL, NULL); |
35692fe0 JB |
3756 | } |
3757 | /* Would get MPV otherwise, since Lisp_Int's `point' to low memory. */ | |
ae683129 | 3758 | else if (INTEGERP (args[n]) && *format != 's') |
35692fe0 | 3759 | { |
eb8c3be9 | 3760 | /* The following loop assumes the Lisp type indicates |
35692fe0 JB |
3761 | the proper way to pass the argument. |
3762 | So make sure we have a flonum if the argument should | |
3763 | be a double. */ | |
3764 | if (*format == 'e' || *format == 'f' || *format == 'g') | |
3765 | args[n] = Ffloat (args[n]); | |
4224cb62 | 3766 | else |
4224cb62 | 3767 | if (*format != 'd' && *format != 'o' && *format != 'x' |
00d65216 | 3768 | && *format != 'i' && *format != 'X' && *format != 'c') |
4224cb62 KH |
3769 | error ("Invalid format operation %%%c", *format); |
3770 | ||
0e4df721 | 3771 | thissize = 30 + (precision[n] > 0 ? precision[n] : 0); |
063b53b1 | 3772 | if (*format == 'c') |
f49a2d74 | 3773 | { |
8f924df7 | 3774 | if (! ASCII_CHAR_P (XINT (args[n])) |
231a3316 KH |
3775 | /* Note: No one can remeber why we have to treat |
3776 | the character 0 as a multibyte character here. | |
3777 | But, until it causes a real problem, let's | |
3778 | don't change it. */ | |
063b53b1 | 3779 | || XINT (args[n]) == 0) |
f49a2d74 | 3780 | { |
063b53b1 KH |
3781 | if (! multibyte) |
3782 | { | |
3783 | multibyte = 1; | |
3784 | goto retry; | |
3785 | } | |
3786 | args[n] = Fchar_to_string (args[n]); | |
3787 | thissize = SBYTES (args[n]); | |
3788 | } | |
3789 | else if (! ASCII_BYTE_P (XINT (args[n])) && multibyte) | |
3790 | { | |
3791 | args[n] | |
3792 | = Fchar_to_string (Funibyte_char_to_multibyte (args[n])); | |
3793 | thissize = SBYTES (args[n]); | |
f49a2d74 | 3794 | } |
f49a2d74 | 3795 | } |
35692fe0 | 3796 | } |
ae683129 | 3797 | else if (FLOATP (args[n]) && *format != 's') |
35692fe0 JB |
3798 | { |
3799 | if (! (*format == 'e' || *format == 'f' || *format == 'g')) | |
f98176d2 RS |
3800 | { |
3801 | if (*format != 'd' && *format != 'o' && *format != 'x' | |
3802 | && *format != 'i' && *format != 'X' && *format != 'c') | |
3803 | error ("Invalid format operation %%%c", *format); | |
c5c6b2cc SM |
3804 | /* This fails unnecessarily if args[n] is bigger than |
3805 | most-positive-fixnum but smaller than MAXINT. | |
3806 | These cases are important because we sometimes use floats | |
3807 | to represent such integer values (typically such values | |
3808 | come from UIDs or PIDs). */ | |
3809 | /* args[n] = Ftruncate (args[n], Qnil); */ | |
f98176d2 | 3810 | } |
a432bfe5 GM |
3811 | |
3812 | /* Note that we're using sprintf to print floats, | |
3813 | so we have to take into account what that function | |
3814 | prints. */ | |
b11f1d8a | 3815 | /* Filter out flag value of -1. */ |
6b381c3a RS |
3816 | thissize = (MAX_10_EXP + 100 |
3817 | + (precision[n] > 0 ? precision[n] : 0)); | |
35692fe0 JB |
3818 | } |
3819 | else | |
3820 | { | |
3821 | /* Anything but a string, convert to a string using princ. */ | |
3822 | register Lisp_Object tem; | |
3823 | tem = Fprin1_to_string (args[n], Qt); | |
f555f8cf | 3824 | if (STRING_MULTIBYTE (tem) && ! multibyte) |
e781c49e RS |
3825 | { |
3826 | multibyte = 1; | |
3827 | goto retry; | |
3828 | } | |
35692fe0 JB |
3829 | args[n] = tem; |
3830 | goto string; | |
3831 | } | |
34a7a267 | 3832 | |
308dd672 | 3833 | thissize += max (0, field_width - actual_width); |
1f24f4fd | 3834 | total += thissize + 4; |
35692fe0 JB |
3835 | } |
3836 | ||
67965a98 RS |
3837 | abort_on_gc--; |
3838 | ||
e781c49e RS |
3839 | /* Now we can no longer jump to retry. |
3840 | TOTAL and LONGEST_FORMAT are known for certain. */ | |
3841 | ||
1f24f4fd | 3842 | this_format = (unsigned char *) alloca (longest_format + 1); |
50aa2f90 | 3843 | |
1f24f4fd RS |
3844 | /* Allocate the space for the result. |
3845 | Note that TOTAL is an overestimate. */ | |
7e2c051b | 3846 | SAFE_ALLOCA (buf, char *, total); |
35692fe0 | 3847 | |
1f24f4fd RS |
3848 | p = buf; |
3849 | nchars = 0; | |
3850 | n = 0; | |
35692fe0 | 3851 | |
1f24f4fd | 3852 | /* Scan the format and store result in BUF. */ |
d5db4077 | 3853 | format = SDATA (args[0]); |
67965a98 RS |
3854 | format_start = format; |
3855 | end = format + SBYTES (args[0]); | |
8f2917e4 | 3856 | maybe_combine_byte = 0; |
1f24f4fd RS |
3857 | while (format != end) |
3858 | { | |
3859 | if (*format == '%') | |
3860 | { | |
3861 | int minlen; | |
25c9e7fb | 3862 | int negative = 0; |
1f24f4fd | 3863 | unsigned char *this_format_start = format; |
35692fe0 | 3864 | |
d147ee84 | 3865 | discarded[format - format_start] = 1; |
1f24f4fd | 3866 | format++; |
fb893977 | 3867 | |
cb06e570 | 3868 | while (index("-+0# ", *format)) |
f555f8cf KH |
3869 | { |
3870 | if (*format == '-') | |
3871 | { | |
3872 | negative = 1; | |
3873 | } | |
3874 | discarded[format - format_start] = 1; | |
3875 | ++format; | |
3876 | } | |
3877 | ||
1f24f4fd | 3878 | minlen = atoi (format); |
f555f8cf KH |
3879 | |
3880 | while ((*format >= '0' && *format <= '9') || *format == '.') | |
d147ee84 RS |
3881 | { |
3882 | discarded[format - format_start] = 1; | |
3883 | format++; | |
3884 | } | |
35692fe0 | 3885 | |
1f24f4fd RS |
3886 | if (*format++ == '%') |
3887 | { | |
3888 | *p++ = '%'; | |
3889 | nchars++; | |
3890 | continue; | |
3891 | } | |
3892 | ||
3893 | ++n; | |
3894 | ||
d147ee84 RS |
3895 | discarded[format - format_start - 1] = 1; |
3896 | info[n].start = nchars; | |
3897 | ||
1f24f4fd RS |
3898 | if (STRINGP (args[n])) |
3899 | { | |
ac42d7b9 KG |
3900 | /* handle case (precision[n] >= 0) */ |
3901 | ||
3902 | int width, padding; | |
3903 | int nbytes, start, end; | |
3904 | int nchars_string; | |
3905 | ||
3906 | /* lisp_string_width ignores a precision of 0, but GNU | |
3907 | libc functions print 0 characters when the precision | |
3908 | is 0. Imitate libc behavior here. Changing | |
3909 | lisp_string_width is the right thing, and will be | |
3910 | done, but meanwhile we work with it. */ | |
3911 | ||
3912 | if (precision[n] == 0) | |
3913 | width = nchars_string = nbytes = 0; | |
3914 | else if (precision[n] > 0) | |
3915 | width = lisp_string_width (args[n], precision[n], &nchars_string, &nbytes); | |
3916 | else | |
3917 | { /* no precision spec given for this argument */ | |
3918 | width = lisp_string_width (args[n], -1, NULL, NULL); | |
3919 | nbytes = SBYTES (args[n]); | |
3920 | nchars_string = SCHARS (args[n]); | |
3921 | } | |
25c9e7fb RS |
3922 | |
3923 | /* If spec requires it, pad on right with spaces. */ | |
3924 | padding = minlen - width; | |
3925 | if (! negative) | |
3926 | while (padding-- > 0) | |
3927 | { | |
3928 | *p++ = ' '; | |
50606b4c | 3929 | ++nchars; |
25c9e7fb | 3930 | } |
1f24f4fd | 3931 | |
8f2c9ed8 | 3932 | info[n].start = start = nchars; |
ac42d7b9 KG |
3933 | nchars += nchars_string; |
3934 | end = nchars; | |
3935 | ||
8f2917e4 KH |
3936 | if (p > buf |
3937 | && multibyte | |
25aa5d64 | 3938 | && !ASCII_BYTE_P (*((unsigned char *) p - 1)) |
8f2917e4 | 3939 | && STRING_MULTIBYTE (args[n]) |
d5db4077 | 3940 | && !CHAR_HEAD_P (SREF (args[n], 0))) |
8f2917e4 | 3941 | maybe_combine_byte = 1; |
ac42d7b9 KG |
3942 | |
3943 | p += copy_text (SDATA (args[n]), p, | |
3944 | nbytes, | |
3945 | STRING_MULTIBYTE (args[n]), multibyte); | |
1f24f4fd | 3946 | |
8f2c9ed8 RS |
3947 | info[n].end = nchars; |
3948 | ||
25c9e7fb RS |
3949 | if (negative) |
3950 | while (padding-- > 0) | |
3951 | { | |
3952 | *p++ = ' '; | |
3953 | nchars++; | |
3954 | } | |
5e6d5493 GM |
3955 | |
3956 | /* If this argument has text properties, record where | |
3957 | in the result string it appears. */ | |
d5db4077 | 3958 | if (STRING_INTERVALS (args[n])) |
d147ee84 | 3959 | info[n].intervals = arg_intervals = 1; |
1f24f4fd RS |
3960 | } |
3961 | else if (INTEGERP (args[n]) || FLOATP (args[n])) | |
3962 | { | |
3963 | int this_nchars; | |
3964 | ||
3965 | bcopy (this_format_start, this_format, | |
3966 | format - this_format_start); | |
3967 | this_format[format - this_format_start] = 0; | |
3968 | ||
0f860bd7 AS |
3969 | if (format[-1] == 'e' || format[-1] == 'f' || format[-1] == 'g') |
3970 | sprintf (p, this_format, XFLOAT_DATA (args[n])); | |
3971 | else | |
de92d4d4 | 3972 | { |
ff6e6ac8 AS |
3973 | if (sizeof (EMACS_INT) > sizeof (int) |
3974 | && format[-1] != 'c') | |
0f860bd7 AS |
3975 | { |
3976 | /* Insert 'l' before format spec. */ | |
3977 | this_format[format - this_format_start] | |
3978 | = this_format[format - this_format_start - 1]; | |
3979 | this_format[format - this_format_start - 1] = 'l'; | |
3980 | this_format[format - this_format_start + 1] = 0; | |
3981 | } | |
3982 | ||
ff6e6ac8 AS |
3983 | if (INTEGERP (args[n])) |
3984 | { | |
3985 | if (format[-1] == 'c') | |
3986 | sprintf (p, this_format, (int) XINT (args[n])); | |
3987 | else if (format[-1] == 'd') | |
3988 | sprintf (p, this_format, XINT (args[n])); | |
3989 | /* Don't sign-extend for octal or hex printing. */ | |
3990 | else | |
3991 | sprintf (p, this_format, XUINT (args[n])); | |
3992 | } | |
3993 | else if (format[-1] == 'c') | |
3994 | sprintf (p, this_format, (int) XFLOAT_DATA (args[n])); | |
3995 | else if (format[-1] == 'd') | |
3996 | /* Maybe we should use "%1.0f" instead so it also works | |
3997 | for values larger than MAXINT. */ | |
3998 | sprintf (p, this_format, (EMACS_INT) XFLOAT_DATA (args[n])); | |
de92d4d4 | 3999 | else |
0f860bd7 | 4000 | /* Don't sign-extend for octal or hex printing. */ |
ff6e6ac8 | 4001 | sprintf (p, this_format, (EMACS_UINT) XFLOAT_DATA (args[n])); |
de92d4d4 | 4002 | } |
1f24f4fd | 4003 | |
8f2917e4 KH |
4004 | if (p > buf |
4005 | && multibyte | |
25aa5d64 KH |
4006 | && !ASCII_BYTE_P (*((unsigned char *) p - 1)) |
4007 | && !CHAR_HEAD_P (*((unsigned char *) p))) | |
8f2917e4 | 4008 | maybe_combine_byte = 1; |
1f24f4fd | 4009 | this_nchars = strlen (p); |
9a599130 | 4010 | if (multibyte) |
7e2c051b | 4011 | p += str_to_multibyte (p, buf + total - 1 - p, this_nchars); |
9a599130 KH |
4012 | else |
4013 | p += this_nchars; | |
1f24f4fd | 4014 | nchars += this_nchars; |
8f2c9ed8 | 4015 | info[n].end = nchars; |
1f24f4fd | 4016 | } |
d147ee84 | 4017 | |
1f24f4fd | 4018 | } |
7df74da6 RS |
4019 | else if (STRING_MULTIBYTE (args[0])) |
4020 | { | |
4021 | /* Copy a whole multibyte character. */ | |
8f2917e4 KH |
4022 | if (p > buf |
4023 | && multibyte | |
25aa5d64 KH |
4024 | && !ASCII_BYTE_P (*((unsigned char *) p - 1)) |
4025 | && !CHAR_HEAD_P (*format)) | |
8f2917e4 | 4026 | maybe_combine_byte = 1; |
7df74da6 | 4027 | *p++ = *format++; |
d147ee84 RS |
4028 | while (! CHAR_HEAD_P (*format)) |
4029 | { | |
4030 | discarded[format - format_start] = 2; | |
4031 | *p++ = *format++; | |
4032 | } | |
7df74da6 RS |
4033 | nchars++; |
4034 | } | |
4035 | else if (multibyte) | |
1f24f4fd RS |
4036 | { |
4037 | /* Convert a single-byte character to multibyte. */ | |
4038 | int len = copy_text (format, p, 1, 0, 1); | |
4039 | ||
4040 | p += len; | |
4041 | format++; | |
4042 | nchars++; | |
4043 | } | |
4044 | else | |
4045 | *p++ = *format++, nchars++; | |
4046 | } | |
4047 | ||
7e2c051b | 4048 | if (p > buf + total) |
a432bfe5 GM |
4049 | abort (); |
4050 | ||
8f2917e4 KH |
4051 | if (maybe_combine_byte) |
4052 | nchars = multibyte_chars_in_text (buf, p - buf); | |
5f75e666 | 4053 | val = make_specified_string (buf, nchars, p - buf, multibyte); |
8d6179dc | 4054 | |
1f24f4fd | 4055 | /* If we allocated BUF with malloc, free it too. */ |
e65837df | 4056 | SAFE_FREE (); |
35692fe0 | 4057 | |
5e6d5493 GM |
4058 | /* If the format string has text properties, or any of the string |
4059 | arguments has text properties, set up text properties of the | |
4060 | result string. */ | |
34a7a267 | 4061 | |
d147ee84 | 4062 | if (STRING_INTERVALS (args[0]) || arg_intervals) |
5e6d5493 GM |
4063 | { |
4064 | Lisp_Object len, new_len, props; | |
4065 | struct gcpro gcpro1; | |
34a7a267 | 4066 | |
5e6d5493 | 4067 | /* Add text properties from the format string. */ |
d5db4077 | 4068 | len = make_number (SCHARS (args[0])); |
5e6d5493 GM |
4069 | props = text_property_list (args[0], make_number (0), len, Qnil); |
4070 | GCPRO1 (props); | |
34a7a267 | 4071 | |
5e6d5493 GM |
4072 | if (CONSP (props)) |
4073 | { | |
d147ee84 RS |
4074 | int bytepos = 0, position = 0, translated = 0, argn = 1; |
4075 | Lisp_Object list; | |
4076 | ||
4077 | /* Adjust the bounds of each text property | |
4078 | to the proper start and end in the output string. */ | |
d147ee84 | 4079 | |
15fad037 KS |
4080 | /* Put the positions in PROPS in increasing order, so that |
4081 | we can do (effectively) one scan through the position | |
4082 | space of the format string. */ | |
4083 | props = Fnreverse (props); | |
4084 | ||
4085 | /* BYTEPOS is the byte position in the format string, | |
d147ee84 RS |
4086 | POSITION is the untranslated char position in it, |
4087 | TRANSLATED is the translated char position in BUF, | |
4088 | and ARGN is the number of the next arg we will come to. */ | |
4089 | for (list = props; CONSP (list); list = XCDR (list)) | |
4090 | { | |
f3ce1df8 SM |
4091 | Lisp_Object item; |
4092 | int pos; | |
d147ee84 RS |
4093 | |
4094 | item = XCAR (list); | |
4095 | ||
4096 | /* First adjust the property start position. */ | |
4097 | pos = XINT (XCAR (item)); | |
4098 | ||
4099 | /* Advance BYTEPOS, POSITION, TRANSLATED and ARGN | |
4100 | up to this position. */ | |
4101 | for (; position < pos; bytepos++) | |
4102 | { | |
4103 | if (! discarded[bytepos]) | |
4104 | position++, translated++; | |
4105 | else if (discarded[bytepos] == 1) | |
4106 | { | |
4107 | position++; | |
4108 | if (translated == info[argn].start) | |
4109 | { | |
4110 | translated += info[argn].end - info[argn].start; | |
4111 | argn++; | |
4112 | } | |
4113 | } | |
4114 | } | |
4115 | ||
4116 | XSETCAR (item, make_number (translated)); | |
4117 | ||
4118 | /* Likewise adjust the property end position. */ | |
4119 | pos = XINT (XCAR (XCDR (item))); | |
4120 | ||
d40ec4a0 | 4121 | for (; position < pos; bytepos++) |
d147ee84 RS |
4122 | { |
4123 | if (! discarded[bytepos]) | |
4124 | position++, translated++; | |
4125 | else if (discarded[bytepos] == 1) | |
4126 | { | |
4127 | position++; | |
4128 | if (translated == info[argn].start) | |
4129 | { | |
4130 | translated += info[argn].end - info[argn].start; | |
4131 | argn++; | |
4132 | } | |
4133 | } | |
4134 | } | |
4135 | ||
4136 | XSETCAR (XCDR (item), make_number (translated)); | |
4137 | } | |
4138 | ||
5e6d5493 GM |
4139 | add_text_properties_from_list (val, props, make_number (0)); |
4140 | } | |
4141 | ||
4142 | /* Add text properties from arguments. */ | |
d147ee84 | 4143 | if (arg_intervals) |
5e6d5493 | 4144 | for (n = 1; n < nargs; ++n) |
d147ee84 | 4145 | if (info[n].intervals) |
5e6d5493 | 4146 | { |
d5db4077 | 4147 | len = make_number (SCHARS (args[n])); |
5e6d5493 GM |
4148 | new_len = make_number (info[n].end - info[n].start); |
4149 | props = text_property_list (args[n], make_number (0), len, Qnil); | |
4150 | extend_property_ranges (props, len, new_len); | |
be17069b KH |
4151 | /* If successive arguments have properites, be sure that |
4152 | the value of `composition' property be the copy. */ | |
4153 | if (n > 1 && info[n - 1].end) | |
4154 | make_composition_value_copy (props); | |
5e6d5493 GM |
4155 | add_text_properties_from_list (val, props, |
4156 | make_number (info[n].start)); | |
4157 | } | |
4158 | ||
4159 | UNGCPRO; | |
4160 | } | |
4161 | ||
8d6179dc | 4162 | return val; |
35692fe0 JB |
4163 | } |
4164 | ||
35692fe0 | 4165 | Lisp_Object |
d40dc1d0 | 4166 | format2 (string1, arg0, arg1) |
35692fe0 | 4167 | char *string1; |
d40dc1d0 RS |
4168 | Lisp_Object arg0, arg1; |
4169 | { | |
4170 | Lisp_Object args[3]; | |
d40dc1d0 RS |
4171 | args[0] = build_string (string1); |
4172 | args[1] = arg0; | |
4173 | args[2] = arg1; | |
4174 | return Fformat (3, args); | |
35692fe0 JB |
4175 | } |
4176 | \f | |
4177 | DEFUN ("char-equal", Fchar_equal, Schar_equal, 2, 2, 0, | |
7ee72033 | 4178 | doc: /* Return t if two characters match, optionally ignoring case. |
a1f17501 | 4179 | Both arguments must be characters (i.e. integers). |
7ee72033 MB |
4180 | Case is ignored if `case-fold-search' is non-nil in the current buffer. */) |
4181 | (c1, c2) | |
35692fe0 JB |
4182 | register Lisp_Object c1, c2; |
4183 | { | |
1b5d98bb | 4184 | int i1, i2; |
253c3c82 SM |
4185 | /* Check they're chars, not just integers, otherwise we could get array |
4186 | bounds violations in DOWNCASE. */ | |
4187 | CHECK_CHARACTER (c1); | |
4188 | CHECK_CHARACTER (c2); | |
35692fe0 | 4189 | |
1b5d98bb | 4190 | if (XINT (c1) == XINT (c2)) |
35692fe0 | 4191 | return Qt; |
1b5d98bb RS |
4192 | if (NILP (current_buffer->case_fold_search)) |
4193 | return Qnil; | |
4194 | ||
4195 | /* Do these in separate statements, | |
4196 | then compare the variables. | |
4197 | because of the way DOWNCASE uses temp variables. */ | |
e5112ecb KH |
4198 | i1 = XFASTINT (c1); |
4199 | if (NILP (current_buffer->enable_multibyte_characters) | |
4200 | && ! ASCII_CHAR_P (i1)) | |
4201 | { | |
4202 | MAKE_CHAR_MULTIBYTE (i1); | |
4203 | } | |
4204 | i2 = XFASTINT (c2); | |
4205 | if (NILP (current_buffer->enable_multibyte_characters) | |
4206 | && ! ASCII_CHAR_P (i2)) | |
4207 | { | |
4208 | MAKE_CHAR_MULTIBYTE (i2); | |
4209 | } | |
4210 | i1 = DOWNCASE (i1); | |
4211 | i2 = DOWNCASE (i2); | |
1b5d98bb | 4212 | return (i1 == i2 ? Qt : Qnil); |
35692fe0 | 4213 | } |
b229b8d1 RS |
4214 | \f |
4215 | /* Transpose the markers in two regions of the current buffer, and | |
4216 | adjust the ones between them if necessary (i.e.: if the regions | |
4217 | differ in size). | |
4218 | ||
ec1c14f6 RS |
4219 | START1, END1 are the character positions of the first region. |
4220 | START1_BYTE, END1_BYTE are the byte positions. | |
4221 | START2, END2 are the character positions of the second region. | |
4222 | START2_BYTE, END2_BYTE are the byte positions. | |
4223 | ||
b229b8d1 RS |
4224 | Traverses the entire marker list of the buffer to do so, adding an |
4225 | appropriate amount to some, subtracting from some, and leaving the | |
4226 | rest untouched. Most of this is copied from adjust_markers in insdel.c. | |
34a7a267 | 4227 | |
ec1c14f6 | 4228 | It's the caller's job to ensure that START1 <= END1 <= START2 <= END2. */ |
b229b8d1 | 4229 | |
acb7cc89 | 4230 | static void |
ec1c14f6 RS |
4231 | transpose_markers (start1, end1, start2, end2, |
4232 | start1_byte, end1_byte, start2_byte, end2_byte) | |
b229b8d1 | 4233 | register int start1, end1, start2, end2; |
ec1c14f6 | 4234 | register int start1_byte, end1_byte, start2_byte, end2_byte; |
b229b8d1 | 4235 | { |
ec1c14f6 | 4236 | register int amt1, amt1_byte, amt2, amt2_byte, diff, diff_byte, mpos; |
12038f9f | 4237 | register struct Lisp_Marker *marker; |
b229b8d1 | 4238 | |
03240d11 | 4239 | /* Update point as if it were a marker. */ |
8de1d5f0 KH |
4240 | if (PT < start1) |
4241 | ; | |
4242 | else if (PT < end1) | |
ec1c14f6 RS |
4243 | TEMP_SET_PT_BOTH (PT + (end2 - end1), |
4244 | PT_BYTE + (end2_byte - end1_byte)); | |
8de1d5f0 | 4245 | else if (PT < start2) |
ec1c14f6 RS |
4246 | TEMP_SET_PT_BOTH (PT + (end2 - start2) - (end1 - start1), |
4247 | (PT_BYTE + (end2_byte - start2_byte) | |
4248 | - (end1_byte - start1_byte))); | |
8de1d5f0 | 4249 | else if (PT < end2) |
ec1c14f6 RS |
4250 | TEMP_SET_PT_BOTH (PT - (start2 - start1), |
4251 | PT_BYTE - (start2_byte - start1_byte)); | |
8de1d5f0 | 4252 | |
03240d11 KH |
4253 | /* We used to adjust the endpoints here to account for the gap, but that |
4254 | isn't good enough. Even if we assume the caller has tried to move the | |
4255 | gap out of our way, it might still be at start1 exactly, for example; | |
4256 | and that places it `inside' the interval, for our purposes. The amount | |
4257 | of adjustment is nontrivial if there's a `denormalized' marker whose | |
4258 | position is between GPT and GPT + GAP_SIZE, so it's simpler to leave | |
4259 | the dirty work to Fmarker_position, below. */ | |
b229b8d1 RS |
4260 | |
4261 | /* The difference between the region's lengths */ | |
4262 | diff = (end2 - start2) - (end1 - start1); | |
ec1c14f6 | 4263 | diff_byte = (end2_byte - start2_byte) - (end1_byte - start1_byte); |
34a7a267 | 4264 | |
b229b8d1 | 4265 | /* For shifting each marker in a region by the length of the other |
ec1c14f6 | 4266 | region plus the distance between the regions. */ |
b229b8d1 RS |
4267 | amt1 = (end2 - start2) + (start2 - end1); |
4268 | amt2 = (end1 - start1) + (start2 - end1); | |
ec1c14f6 RS |
4269 | amt1_byte = (end2_byte - start2_byte) + (start2_byte - end1_byte); |
4270 | amt2_byte = (end1_byte - start1_byte) + (start2_byte - end1_byte); | |
b229b8d1 | 4271 | |
12038f9f | 4272 | for (marker = BUF_MARKERS (current_buffer); marker; marker = marker->next) |
b229b8d1 | 4273 | { |
12038f9f | 4274 | mpos = marker->bytepos; |
ec1c14f6 RS |
4275 | if (mpos >= start1_byte && mpos < end2_byte) |
4276 | { | |
4277 | if (mpos < end1_byte) | |
4278 | mpos += amt1_byte; | |
4279 | else if (mpos < start2_byte) | |
4280 | mpos += diff_byte; | |
4281 | else | |
4282 | mpos -= amt2_byte; | |
12038f9f | 4283 | marker->bytepos = mpos; |
ec1c14f6 | 4284 | } |
12038f9f | 4285 | mpos = marker->charpos; |
03240d11 KH |
4286 | if (mpos >= start1 && mpos < end2) |
4287 | { | |
4288 | if (mpos < end1) | |
4289 | mpos += amt1; | |
4290 | else if (mpos < start2) | |
4291 | mpos += diff; | |
4292 | else | |
4293 | mpos -= amt2; | |
03240d11 | 4294 | } |
12038f9f | 4295 | marker->charpos = mpos; |
b229b8d1 RS |
4296 | } |
4297 | } | |
4298 | ||
4299 | DEFUN ("transpose-regions", Ftranspose_regions, Stranspose_regions, 4, 5, 0, | |
412f1fab | 4300 | doc: /* Transpose region STARTR1 to ENDR1 with STARTR2 to ENDR2. |
a1f17501 PJ |
4301 | The regions may not be overlapping, because the size of the buffer is |
4302 | never changed in a transposition. | |
4303 | ||
412f1fab | 4304 | Optional fifth arg LEAVE-MARKERS, if non-nil, means don't update |
a1f17501 PJ |
4305 | any markers that happen to be located in the regions. |
4306 | ||
7ee72033 MB |
4307 | Transposing beyond buffer boundaries is an error. */) |
4308 | (startr1, endr1, startr2, endr2, leave_markers) | |
b229b8d1 RS |
4309 | Lisp_Object startr1, endr1, startr2, endr2, leave_markers; |
4310 | { | |
d47ecf8b SM |
4311 | register EMACS_INT start1, end1, start2, end2; |
4312 | EMACS_INT start1_byte, start2_byte, len1_byte, len2_byte; | |
4313 | EMACS_INT gap, len1, len_mid, len2; | |
3c6bc7d0 | 4314 | unsigned char *start1_addr, *start2_addr, *temp; |
b229b8d1 | 4315 | |
6cd0f478 | 4316 | INTERVAL cur_intv, tmp_interval1, tmp_interval_mid, tmp_interval2, tmp_interval3; |
916480c4 CY |
4317 | Lisp_Object buf; |
4318 | ||
4319 | XSETBUFFER (buf, current_buffer); | |
1e158d25 | 4320 | cur_intv = BUF_INTERVALS (current_buffer); |
b229b8d1 RS |
4321 | |
4322 | validate_region (&startr1, &endr1); | |
4323 | validate_region (&startr2, &endr2); | |
4324 | ||
4325 | start1 = XFASTINT (startr1); | |
4326 | end1 = XFASTINT (endr1); | |
4327 | start2 = XFASTINT (startr2); | |
4328 | end2 = XFASTINT (endr2); | |
4329 | gap = GPT; | |
4330 | ||
4331 | /* Swap the regions if they're reversed. */ | |
4332 | if (start2 < end1) | |
4333 | { | |
4334 | register int glumph = start1; | |
4335 | start1 = start2; | |
4336 | start2 = glumph; | |
4337 | glumph = end1; | |
4338 | end1 = end2; | |
4339 | end2 = glumph; | |
4340 | } | |
4341 | ||
b229b8d1 RS |
4342 | len1 = end1 - start1; |
4343 | len2 = end2 - start2; | |
4344 | ||
4345 | if (start2 < end1) | |
dc3620af | 4346 | error ("Transposed regions overlap"); |
b229b8d1 | 4347 | else if (start1 == end1 || start2 == end2) |
dc3620af | 4348 | error ("Transposed region has length 0"); |
b229b8d1 RS |
4349 | |
4350 | /* The possibilities are: | |
4351 | 1. Adjacent (contiguous) regions, or separate but equal regions | |
4352 | (no, really equal, in this case!), or | |
4353 | 2. Separate regions of unequal size. | |
34a7a267 | 4354 | |
b229b8d1 RS |
4355 | The worst case is usually No. 2. It means that (aside from |
4356 | potential need for getting the gap out of the way), there also | |
4357 | needs to be a shifting of the text between the two regions. So | |
4358 | if they are spread far apart, we are that much slower... sigh. */ | |
4359 | ||
4360 | /* It must be pointed out that the really studly thing to do would | |
4361 | be not to move the gap at all, but to leave it in place and work | |
4362 | around it if necessary. This would be extremely efficient, | |
4363 | especially considering that people are likely to do | |
4364 | transpositions near where they are working interactively, which | |
4365 | is exactly where the gap would be found. However, such code | |
4366 | would be much harder to write and to read. So, if you are | |
4367 | reading this comment and are feeling squirrely, by all means have | |
4368 | a go! I just didn't feel like doing it, so I will simply move | |
4369 | the gap the minimum distance to get it out of the way, and then | |
4370 | deal with an unbroken array. */ | |
3c6bc7d0 RS |
4371 | |
4372 | /* Make sure the gap won't interfere, by moving it out of the text | |
4373 | we will operate on. */ | |
4374 | if (start1 < gap && gap < end2) | |
4375 | { | |
4376 | if (gap - start1 < end2 - gap) | |
4377 | move_gap (start1); | |
4378 | else | |
4379 | move_gap (end2); | |
4380 | } | |
ec1c14f6 RS |
4381 | |
4382 | start1_byte = CHAR_TO_BYTE (start1); | |
4383 | start2_byte = CHAR_TO_BYTE (start2); | |
4384 | len1_byte = CHAR_TO_BYTE (end1) - start1_byte; | |
4385 | len2_byte = CHAR_TO_BYTE (end2) - start2_byte; | |
dc3620af | 4386 | |
9a599130 | 4387 | #ifdef BYTE_COMBINING_DEBUG |
dc3620af RS |
4388 | if (end1 == start2) |
4389 | { | |
9a599130 KH |
4390 | if (count_combining_before (BYTE_POS_ADDR (start2_byte), |
4391 | len2_byte, start1, start1_byte) | |
4392 | || count_combining_before (BYTE_POS_ADDR (start1_byte), | |
4393 | len1_byte, end2, start2_byte + len2_byte) | |
4394 | || count_combining_after (BYTE_POS_ADDR (start1_byte), | |
4395 | len1_byte, end2, start2_byte + len2_byte)) | |
4396 | abort (); | |
dc3620af RS |
4397 | } |
4398 | else | |
4399 | { | |
9a599130 KH |
4400 | if (count_combining_before (BYTE_POS_ADDR (start2_byte), |
4401 | len2_byte, start1, start1_byte) | |
4402 | || count_combining_before (BYTE_POS_ADDR (start1_byte), | |
4403 | len1_byte, start2, start2_byte) | |
4404 | || count_combining_after (BYTE_POS_ADDR (start2_byte), | |
4405 | len2_byte, end1, start1_byte + len1_byte) | |
4406 | || count_combining_after (BYTE_POS_ADDR (start1_byte), | |
4407 | len1_byte, end2, start2_byte + len2_byte)) | |
4408 | abort (); | |
dc3620af | 4409 | } |
9a599130 | 4410 | #endif |
dc3620af | 4411 | |
b229b8d1 RS |
4412 | /* Hmmm... how about checking to see if the gap is large |
4413 | enough to use as the temporary storage? That would avoid an | |
4414 | allocation... interesting. Later, don't fool with it now. */ | |
4415 | ||
4416 | /* Working without memmove, for portability (sigh), so must be | |
4417 | careful of overlapping subsections of the array... */ | |
4418 | ||
4419 | if (end1 == start2) /* adjacent regions */ | |
4420 | { | |
3e145152 | 4421 | modify_region (current_buffer, start1, end2, 0); |
b229b8d1 RS |
4422 | record_change (start1, len1 + len2); |
4423 | ||
b229b8d1 RS |
4424 | tmp_interval1 = copy_intervals (cur_intv, start1, len1); |
4425 | tmp_interval2 = copy_intervals (cur_intv, start2, len2); | |
916480c4 CY |
4426 | /* Don't use Fset_text_properties: that can cause GC, which can |
4427 | clobber objects stored in the tmp_intervals. */ | |
6cd0f478 CY |
4428 | tmp_interval3 = validate_interval_range (buf, &startr1, &endr2, 0); |
4429 | if (!NULL_INTERVAL_P (tmp_interval3)) | |
4430 | set_text_properties_1 (startr1, endr2, Qnil, buf, tmp_interval3); | |
b229b8d1 RS |
4431 | |
4432 | /* First region smaller than second. */ | |
ec1c14f6 | 4433 | if (len1_byte < len2_byte) |
b229b8d1 | 4434 | { |
7e2c051b KS |
4435 | USE_SAFE_ALLOCA; |
4436 | ||
4437 | SAFE_ALLOCA (temp, unsigned char *, len2_byte); | |
03240d11 KH |
4438 | |
4439 | /* Don't precompute these addresses. We have to compute them | |
4440 | at the last minute, because the relocating allocator might | |
4441 | have moved the buffer around during the xmalloc. */ | |
23017390 KH |
4442 | start1_addr = BYTE_POS_ADDR (start1_byte); |
4443 | start2_addr = BYTE_POS_ADDR (start2_byte); | |
03240d11 | 4444 | |
ec1c14f6 RS |
4445 | bcopy (start2_addr, temp, len2_byte); |
4446 | bcopy (start1_addr, start1_addr + len2_byte, len1_byte); | |
4447 | bcopy (temp, start1_addr, len2_byte); | |
e65837df | 4448 | SAFE_FREE (); |
b229b8d1 RS |
4449 | } |
4450 | else | |
4451 | /* First region not smaller than second. */ | |
4452 | { | |
7e2c051b KS |
4453 | USE_SAFE_ALLOCA; |
4454 | ||
4455 | SAFE_ALLOCA (temp, unsigned char *, len1_byte); | |
23017390 KH |
4456 | start1_addr = BYTE_POS_ADDR (start1_byte); |
4457 | start2_addr = BYTE_POS_ADDR (start2_byte); | |
ec1c14f6 RS |
4458 | bcopy (start1_addr, temp, len1_byte); |
4459 | bcopy (start2_addr, start1_addr, len2_byte); | |
4460 | bcopy (temp, start1_addr + len2_byte, len1_byte); | |
e65837df | 4461 | SAFE_FREE (); |
b229b8d1 | 4462 | } |
b229b8d1 RS |
4463 | graft_intervals_into_buffer (tmp_interval1, start1 + len2, |
4464 | len1, current_buffer, 0); | |
4465 | graft_intervals_into_buffer (tmp_interval2, start1, | |
4466 | len2, current_buffer, 0); | |
d5c2c403 KH |
4467 | update_compositions (start1, start1 + len2, CHECK_BORDER); |
4468 | update_compositions (start1 + len2, end2, CHECK_TAIL); | |
b229b8d1 RS |
4469 | } |
4470 | /* Non-adjacent regions, because end1 != start2, bleagh... */ | |
4471 | else | |
4472 | { | |
ec1c14f6 RS |
4473 | len_mid = start2_byte - (start1_byte + len1_byte); |
4474 | ||
4475 | if (len1_byte == len2_byte) | |
b229b8d1 RS |
4476 | /* Regions are same size, though, how nice. */ |
4477 | { | |
7e2c051b KS |
4478 | USE_SAFE_ALLOCA; |
4479 | ||
3e145152 CY |
4480 | modify_region (current_buffer, start1, end1, 0); |
4481 | modify_region (current_buffer, start2, end2, 0); | |
b229b8d1 RS |
4482 | record_change (start1, len1); |
4483 | record_change (start2, len2); | |
b229b8d1 RS |
4484 | tmp_interval1 = copy_intervals (cur_intv, start1, len1); |
4485 | tmp_interval2 = copy_intervals (cur_intv, start2, len2); | |
6cd0f478 CY |
4486 | |
4487 | tmp_interval3 = validate_interval_range (buf, &startr1, &endr1, 0); | |
4488 | if (!NULL_INTERVAL_P (tmp_interval3)) | |
4489 | set_text_properties_1 (startr1, endr1, Qnil, buf, tmp_interval3); | |
4490 | ||
4491 | tmp_interval3 = validate_interval_range (buf, &startr2, &endr2, 0); | |
4492 | if (!NULL_INTERVAL_P (tmp_interval3)) | |
4493 | set_text_properties_1 (startr2, endr2, Qnil, buf, tmp_interval3); | |
b229b8d1 | 4494 | |
7e2c051b | 4495 | SAFE_ALLOCA (temp, unsigned char *, len1_byte); |
23017390 KH |
4496 | start1_addr = BYTE_POS_ADDR (start1_byte); |
4497 | start2_addr = BYTE_POS_ADDR (start2_byte); | |
ec1c14f6 RS |
4498 | bcopy (start1_addr, temp, len1_byte); |
4499 | bcopy (start2_addr, start1_addr, len2_byte); | |
4500 | bcopy (temp, start2_addr, len1_byte); | |
e65837df | 4501 | SAFE_FREE (); |
7e2c051b | 4502 | |
b229b8d1 RS |
4503 | graft_intervals_into_buffer (tmp_interval1, start2, |
4504 | len1, current_buffer, 0); | |
4505 | graft_intervals_into_buffer (tmp_interval2, start1, | |
4506 | len2, current_buffer, 0); | |
b229b8d1 RS |
4507 | } |
4508 | ||
ec1c14f6 | 4509 | else if (len1_byte < len2_byte) /* Second region larger than first */ |
b229b8d1 RS |
4510 | /* Non-adjacent & unequal size, area between must also be shifted. */ |
4511 | { | |
7e2c051b KS |
4512 | USE_SAFE_ALLOCA; |
4513 | ||
3e145152 | 4514 | modify_region (current_buffer, start1, end2, 0); |
b229b8d1 | 4515 | record_change (start1, (end2 - start1)); |
b229b8d1 RS |
4516 | tmp_interval1 = copy_intervals (cur_intv, start1, len1); |
4517 | tmp_interval_mid = copy_intervals (cur_intv, end1, len_mid); | |
4518 | tmp_interval2 = copy_intervals (cur_intv, start2, len2); | |
6cd0f478 CY |
4519 | |
4520 | tmp_interval3 = validate_interval_range (buf, &startr1, &endr2, 0); | |
4521 | if (!NULL_INTERVAL_P (tmp_interval3)) | |
4522 | set_text_properties_1 (startr1, endr2, Qnil, buf, tmp_interval3); | |
b229b8d1 | 4523 | |
3c6bc7d0 | 4524 | /* holds region 2 */ |
7e2c051b | 4525 | SAFE_ALLOCA (temp, unsigned char *, len2_byte); |
23017390 KH |
4526 | start1_addr = BYTE_POS_ADDR (start1_byte); |
4527 | start2_addr = BYTE_POS_ADDR (start2_byte); | |
ec1c14f6 RS |
4528 | bcopy (start2_addr, temp, len2_byte); |
4529 | bcopy (start1_addr, start1_addr + len_mid + len2_byte, len1_byte); | |
4530 | safe_bcopy (start1_addr + len1_byte, start1_addr + len2_byte, len_mid); | |
4531 | bcopy (temp, start1_addr, len2_byte); | |
e65837df | 4532 | SAFE_FREE (); |
7e2c051b | 4533 | |
b229b8d1 RS |
4534 | graft_intervals_into_buffer (tmp_interval1, end2 - len1, |
4535 | len1, current_buffer, 0); | |
4536 | graft_intervals_into_buffer (tmp_interval_mid, start1 + len2, | |
4537 | len_mid, current_buffer, 0); | |
4538 | graft_intervals_into_buffer (tmp_interval2, start1, | |
4539 | len2, current_buffer, 0); | |
b229b8d1 RS |
4540 | } |
4541 | else | |
4542 | /* Second region smaller than first. */ | |
4543 | { | |
7e2c051b KS |
4544 | USE_SAFE_ALLOCA; |
4545 | ||
b229b8d1 | 4546 | record_change (start1, (end2 - start1)); |
3e145152 | 4547 | modify_region (current_buffer, start1, end2, 0); |
b229b8d1 | 4548 | |
b229b8d1 RS |
4549 | tmp_interval1 = copy_intervals (cur_intv, start1, len1); |
4550 | tmp_interval_mid = copy_intervals (cur_intv, end1, len_mid); | |
4551 | tmp_interval2 = copy_intervals (cur_intv, start2, len2); | |
6cd0f478 CY |
4552 | |
4553 | tmp_interval3 = validate_interval_range (buf, &startr1, &endr2, 0); | |
4554 | if (!NULL_INTERVAL_P (tmp_interval3)) | |
4555 | set_text_properties_1 (startr1, endr2, Qnil, buf, tmp_interval3); | |
b229b8d1 | 4556 | |
3c6bc7d0 | 4557 | /* holds region 1 */ |
7e2c051b | 4558 | SAFE_ALLOCA (temp, unsigned char *, len1_byte); |
23017390 KH |
4559 | start1_addr = BYTE_POS_ADDR (start1_byte); |
4560 | start2_addr = BYTE_POS_ADDR (start2_byte); | |
ec1c14f6 RS |
4561 | bcopy (start1_addr, temp, len1_byte); |
4562 | bcopy (start2_addr, start1_addr, len2_byte); | |
4563 | bcopy (start1_addr + len1_byte, start1_addr + len2_byte, len_mid); | |
4564 | bcopy (temp, start1_addr + len2_byte + len_mid, len1_byte); | |
e65837df | 4565 | SAFE_FREE (); |
7e2c051b | 4566 | |
b229b8d1 RS |
4567 | graft_intervals_into_buffer (tmp_interval1, end2 - len1, |
4568 | len1, current_buffer, 0); | |
4569 | graft_intervals_into_buffer (tmp_interval_mid, start1 + len2, | |
4570 | len_mid, current_buffer, 0); | |
4571 | graft_intervals_into_buffer (tmp_interval2, start1, | |
4572 | len2, current_buffer, 0); | |
b229b8d1 | 4573 | } |
d5c2c403 KH |
4574 | |
4575 | update_compositions (start1, start1 + len2, CHECK_BORDER); | |
4576 | update_compositions (end2 - len1, end2, CHECK_BORDER); | |
b229b8d1 RS |
4577 | } |
4578 | ||
ec1c14f6 RS |
4579 | /* When doing multiple transpositions, it might be nice |
4580 | to optimize this. Perhaps the markers in any one buffer | |
4581 | should be organized in some sorted data tree. */ | |
b229b8d1 | 4582 | if (NILP (leave_markers)) |
8de1d5f0 | 4583 | { |
ec1c14f6 RS |
4584 | transpose_markers (start1, end1, start2, end2, |
4585 | start1_byte, start1_byte + len1_byte, | |
4586 | start2_byte, start2_byte + len2_byte); | |
6b61353c | 4587 | fix_start_end_in_overlays (start1, end2); |
8de1d5f0 | 4588 | } |
b229b8d1 | 4589 | |
c10b2810 | 4590 | signal_after_change (start1, end2 - start1, end2 - start1); |
b229b8d1 RS |
4591 | return Qnil; |
4592 | } | |
35692fe0 | 4593 | |
35692fe0 JB |
4594 | \f |
4595 | void | |
4596 | syms_of_editfns () | |
4597 | { | |
260e2e2a | 4598 | environbuf = 0; |
a03fc5a6 | 4599 | initial_tz = 0; |
260e2e2a KH |
4600 | |
4601 | Qbuffer_access_fontify_functions | |
4602 | = intern ("buffer-access-fontify-functions"); | |
4603 | staticpro (&Qbuffer_access_fontify_functions); | |
4604 | ||
7ee72033 | 4605 | DEFVAR_LISP ("inhibit-field-text-motion", &Vinhibit_field_text_motion, |
7dcece14 | 4606 | doc: /* Non-nil means text motion commands don't notice fields. */); |
9a74e7e5 GM |
4607 | Vinhibit_field_text_motion = Qnil; |
4608 | ||
260e2e2a | 4609 | DEFVAR_LISP ("buffer-access-fontify-functions", |
7ee72033 MB |
4610 | &Vbuffer_access_fontify_functions, |
4611 | doc: /* List of functions called by `buffer-substring' to fontify if necessary. | |
a1f17501 PJ |
4612 | Each function is called with two arguments which specify the range |
4613 | of the buffer being accessed. */); | |
260e2e2a KH |
4614 | Vbuffer_access_fontify_functions = Qnil; |
4615 | ||
af209db8 RS |
4616 | { |
4617 | Lisp_Object obuf; | |
4618 | extern Lisp_Object Vprin1_to_string_buffer; | |
4619 | obuf = Fcurrent_buffer (); | |
4620 | /* Do this here, because init_buffer_once is too early--it won't work. */ | |
4621 | Fset_buffer (Vprin1_to_string_buffer); | |
4622 | /* Make sure buffer-access-fontify-functions is nil in this buffer. */ | |
4623 | Fset (Fmake_local_variable (intern ("buffer-access-fontify-functions")), | |
4624 | Qnil); | |
4625 | Fset_buffer (obuf); | |
4626 | } | |
4627 | ||
0b6fd023 | 4628 | DEFVAR_LISP ("buffer-access-fontified-property", |
7ee72033 MB |
4629 | &Vbuffer_access_fontified_property, |
4630 | doc: /* Property which (if non-nil) indicates text has been fontified. | |
a1f17501 PJ |
4631 | `buffer-substring' need not call the `buffer-access-fontify-functions' |
4632 | functions if all the text being accessed has this property. */); | |
260e2e2a KH |
4633 | Vbuffer_access_fontified_property = Qnil; |
4634 | ||
7ee72033 | 4635 | DEFVAR_LISP ("system-name", &Vsystem_name, |
1a7e0117 | 4636 | doc: /* The host name of the machine Emacs is running on. */); |
34a7a267 | 4637 | |
7ee72033 MB |
4638 | DEFVAR_LISP ("user-full-name", &Vuser_full_name, |
4639 | doc: /* The full name of the user logged in. */); | |
f43754f6 | 4640 | |
7ee72033 MB |
4641 | DEFVAR_LISP ("user-login-name", &Vuser_login_name, |
4642 | doc: /* The user's name, taken from environment variables if possible. */); | |
f43754f6 | 4643 | |
7ee72033 MB |
4644 | DEFVAR_LISP ("user-real-login-name", &Vuser_real_login_name, |
4645 | doc: /* The user's name, based upon the real uid only. */); | |
35692fe0 | 4646 | |
3bb9abc8 ST |
4647 | DEFVAR_LISP ("operating-system-release", &Voperating_system_release, |
4648 | doc: /* The release of the operating system Emacs is running on. */); | |
4649 | ||
0963334d | 4650 | defsubr (&Spropertize); |
35692fe0 JB |
4651 | defsubr (&Schar_equal); |
4652 | defsubr (&Sgoto_char); | |
4653 | defsubr (&Sstring_to_char); | |
4654 | defsubr (&Schar_to_string); | |
4655 | defsubr (&Sbuffer_substring); | |
260e2e2a | 4656 | defsubr (&Sbuffer_substring_no_properties); |
35692fe0 JB |
4657 | defsubr (&Sbuffer_string); |
4658 | ||
4659 | defsubr (&Spoint_marker); | |
4660 | defsubr (&Smark_marker); | |
4661 | defsubr (&Spoint); | |
4662 | defsubr (&Sregion_beginning); | |
4663 | defsubr (&Sregion_end); | |
7df74da6 | 4664 | |
0daf6e8d GM |
4665 | staticpro (&Qfield); |
4666 | Qfield = intern ("field"); | |
ee547125 MB |
4667 | staticpro (&Qboundary); |
4668 | Qboundary = intern ("boundary"); | |
0daf6e8d GM |
4669 | defsubr (&Sfield_beginning); |
4670 | defsubr (&Sfield_end); | |
4671 | defsubr (&Sfield_string); | |
4672 | defsubr (&Sfield_string_no_properties); | |
8bf64fe8 | 4673 | defsubr (&Sdelete_field); |
0daf6e8d GM |
4674 | defsubr (&Sconstrain_to_field); |
4675 | ||
7df74da6 RS |
4676 | defsubr (&Sline_beginning_position); |
4677 | defsubr (&Sline_end_position); | |
4678 | ||
35692fe0 JB |
4679 | /* defsubr (&Smark); */ |
4680 | /* defsubr (&Sset_mark); */ | |
4681 | defsubr (&Ssave_excursion); | |
4bc8c7d2 | 4682 | defsubr (&Ssave_current_buffer); |
35692fe0 JB |
4683 | |
4684 | defsubr (&Sbufsize); | |
4685 | defsubr (&Spoint_max); | |
4686 | defsubr (&Spoint_min); | |
4687 | defsubr (&Spoint_min_marker); | |
4688 | defsubr (&Spoint_max_marker); | |
c86212b9 RS |
4689 | defsubr (&Sgap_position); |
4690 | defsubr (&Sgap_size); | |
7df74da6 | 4691 | defsubr (&Sposition_bytes); |
3ab0732d | 4692 | defsubr (&Sbyte_to_position); |
c9ed721d | 4693 | |
35692fe0 JB |
4694 | defsubr (&Sbobp); |
4695 | defsubr (&Seobp); | |
4696 | defsubr (&Sbolp); | |
4697 | defsubr (&Seolp); | |
850a8179 JB |
4698 | defsubr (&Sfollowing_char); |
4699 | defsubr (&Sprevious_char); | |
35692fe0 | 4700 | defsubr (&Schar_after); |
fb8106e8 | 4701 | defsubr (&Schar_before); |
35692fe0 JB |
4702 | defsubr (&Sinsert); |
4703 | defsubr (&Sinsert_before_markers); | |
be91036a RS |
4704 | defsubr (&Sinsert_and_inherit); |
4705 | defsubr (&Sinsert_and_inherit_before_markers); | |
35692fe0 | 4706 | defsubr (&Sinsert_char); |
48ef988f | 4707 | defsubr (&Sinsert_byte); |
35692fe0 JB |
4708 | |
4709 | defsubr (&Suser_login_name); | |
4710 | defsubr (&Suser_real_login_name); | |
4711 | defsubr (&Suser_uid); | |
4712 | defsubr (&Suser_real_uid); | |
4713 | defsubr (&Suser_full_name); | |
7fd233b3 | 4714 | defsubr (&Semacs_pid); |
d940e0e4 | 4715 | defsubr (&Scurrent_time); |
4211ee7d | 4716 | defsubr (&Sget_internal_run_time); |
a82d387c | 4717 | defsubr (&Sformat_time_string); |
34a7a267 | 4718 | defsubr (&Sfloat_time); |
4691c06d | 4719 | defsubr (&Sdecode_time); |
cce7b8a0 | 4720 | defsubr (&Sencode_time); |
35692fe0 | 4721 | defsubr (&Scurrent_time_string); |
c2662aea | 4722 | defsubr (&Scurrent_time_zone); |
143cb9a9 | 4723 | defsubr (&Sset_time_zone_rule); |
35692fe0 | 4724 | defsubr (&Ssystem_name); |
35692fe0 | 4725 | defsubr (&Smessage); |
cacc3e2c RS |
4726 | defsubr (&Smessage_box); |
4727 | defsubr (&Smessage_or_box); | |
b14dda8a | 4728 | defsubr (&Scurrent_message); |
35692fe0 | 4729 | defsubr (&Sformat); |
35692fe0 JB |
4730 | |
4731 | defsubr (&Sinsert_buffer_substring); | |
e9cf2084 | 4732 | defsubr (&Scompare_buffer_substrings); |
35692fe0 | 4733 | defsubr (&Ssubst_char_in_region); |
8583605b | 4734 | defsubr (&Stranslate_region_internal); |
35692fe0 | 4735 | defsubr (&Sdelete_region); |
7dae4502 | 4736 | defsubr (&Sdelete_and_extract_region); |
35692fe0 JB |
4737 | defsubr (&Swiden); |
4738 | defsubr (&Snarrow_to_region); | |
4739 | defsubr (&Ssave_restriction); | |
b229b8d1 | 4740 | defsubr (&Stranspose_regions); |
35692fe0 | 4741 | } |
f555f8cf KH |
4742 | |
4743 | /* arch-tag: fc3827d8-6f60-4067-b11e-c3218031b018 | |
4744 | (do not change this comment) */ |