Commit | Line | Data |
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35692fe0 | 1 | /* Lisp functions pertaining to editing. |
64c60c2f | 2 | |
acaf905b | 3 | Copyright (C) 1985-1987, 1989, 1993-2012 Free Software Foundation, Inc. |
35692fe0 JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
9ec0b715 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
35692fe0 | 8 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
35692fe0 JB |
11 | |
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
35692fe0 JB |
19 | |
20 | ||
18160b98 | 21 | #include <config.h> |
68c45bf0 | 22 | #include <sys/types.h> |
3c14598c | 23 | #include <stdio.h> |
d7306fe6 | 24 | #include <setjmp.h> |
bfb61299 | 25 | |
5b9c0a1d | 26 | #ifdef HAVE_PWD_H |
35692fe0 | 27 | #include <pwd.h> |
bfb61299 JB |
28 | #endif |
29 | ||
dfcf069d | 30 | #include <unistd.h> |
dfcf069d | 31 | |
3bb9abc8 ST |
32 | #ifdef HAVE_SYS_UTSNAME_H |
33 | #include <sys/utsname.h> | |
34 | #endif | |
35 | ||
b17f9379 DN |
36 | #include "lisp.h" |
37 | ||
3c14598c EZ |
38 | /* systime.h includes <sys/time.h> which, on some systems, is required |
39 | for <sys/resource.h>; thus systime.h must be included before | |
40 | <sys/resource.h> */ | |
41 | #include "systime.h" | |
21acf124 ST |
42 | |
43 | #if defined HAVE_SYS_RESOURCE_H | |
4211ee7d | 44 | #include <sys/resource.h> |
e0f712ba AC |
45 | #endif |
46 | ||
409847a1 | 47 | #include <ctype.h> |
37910ab2 | 48 | #include <float.h> |
b8d9bd41 PE |
49 | #include <limits.h> |
50 | #include <intprops.h> | |
16c3e636 | 51 | #include <strftime.h> |
37910ab2 | 52 | #include <verify.h> |
409847a1 | 53 | |
74d6d8c5 | 54 | #include "intervals.h" |
40fbd254 | 55 | #include "character.h" |
e5560ff7 | 56 | #include "buffer.h" |
68c45bf0 | 57 | #include "coding.h" |
0ae83348 | 58 | #include "frame.h" |
35692fe0 | 59 | #include "window.h" |
b91834c3 | 60 | #include "blockinput.h" |
35692fe0 | 61 | |
f12ef5eb | 62 | #ifndef USE_CRT_DLL |
c59b5089 | 63 | extern char **environ; |
f12ef5eb AI |
64 | #endif |
65 | ||
aac18aa4 PE |
66 | #define TM_YEAR_BASE 1900 |
67 | ||
c433c134 | 68 | #ifdef WINDOWSNT |
361358ea | 69 | extern Lisp_Object w32_get_internal_run_time (void); |
c433c134 JR |
70 | #endif |
71 | ||
d35af63c PE |
72 | static Lisp_Object format_time_string (char const *, ptrdiff_t, EMACS_TIME, |
73 | int, struct tm *); | |
f57e2426 | 74 | static int tm_diff (struct tm *, struct tm *); |
d311d28c | 75 | static void update_buffer_properties (ptrdiff_t, ptrdiff_t); |
260e2e2a | 76 | |
955cbe7b | 77 | static Lisp_Object Qbuffer_access_fontify_functions; |
e3ed8469 | 78 | |
acb7cc89 GM |
79 | /* Symbol for the text property used to mark fields. */ |
80 | ||
81 | Lisp_Object Qfield; | |
82 | ||
83 | /* A special value for Qfield properties. */ | |
84 | ||
955cbe7b | 85 | static Lisp_Object Qboundary; |
acb7cc89 GM |
86 | |
87 | ||
35692fe0 | 88 | void |
971de7fb | 89 | init_editfns (void) |
35692fe0 | 90 | { |
63c5d10b | 91 | const char *user_name; |
e7f8264d | 92 | register char *p; |
35692fe0 | 93 | struct passwd *pw; /* password entry for the current user */ |
35692fe0 JB |
94 | Lisp_Object tem; |
95 | ||
96 | /* Set up system_name even when dumping. */ | |
ac988277 | 97 | init_system_name (); |
35692fe0 JB |
98 | |
99 | #ifndef CANNOT_DUMP | |
100 | /* Don't bother with this on initial start when just dumping out */ | |
101 | if (!initialized) | |
102 | return; | |
103 | #endif /* not CANNOT_DUMP */ | |
104 | ||
63c5d10b | 105 | pw = getpwuid (getuid ()); |
87485d6f MW |
106 | #ifdef MSDOS |
107 | /* We let the real user name default to "root" because that's quite | |
108 | accurate on MSDOG and because it lets Emacs find the init file. | |
109 | (The DVX libraries override the Djgpp libraries here.) */ | |
35b34f72 | 110 | Vuser_real_login_name = build_string (pw ? pw->pw_name : "root"); |
87485d6f | 111 | #else |
35b34f72 | 112 | Vuser_real_login_name = build_string (pw ? pw->pw_name : "unknown"); |
87485d6f | 113 | #endif |
35692fe0 | 114 | |
52b14ac0 JB |
115 | /* Get the effective user name, by consulting environment variables, |
116 | or the effective uid if those are unset. */ | |
63c5d10b | 117 | user_name = getenv ("LOGNAME"); |
35692fe0 | 118 | if (!user_name) |
4691c06d | 119 | #ifdef WINDOWSNT |
63c5d10b | 120 | user_name = getenv ("USERNAME"); /* it's USERNAME on NT */ |
4691c06d | 121 | #else /* WINDOWSNT */ |
63c5d10b | 122 | user_name = getenv ("USER"); |
4691c06d | 123 | #endif /* WINDOWSNT */ |
52b14ac0 JB |
124 | if (!user_name) |
125 | { | |
63c5d10b PE |
126 | pw = getpwuid (geteuid ()); |
127 | user_name = pw ? pw->pw_name : "unknown"; | |
52b14ac0 | 128 | } |
35b34f72 | 129 | Vuser_login_name = build_string (user_name); |
35692fe0 | 130 | |
52b14ac0 JB |
131 | /* If the user name claimed in the environment vars differs from |
132 | the real uid, use the claimed name to find the full name. */ | |
35b34f72 | 133 | tem = Fstring_equal (Vuser_login_name, Vuser_real_login_name); |
d311d28c PE |
134 | if (! NILP (tem)) |
135 | tem = Vuser_login_name; | |
136 | else | |
137 | { | |
138 | uid_t euid = geteuid (); | |
139 | tem = make_fixnum_or_float (euid); | |
140 | } | |
141 | Vuser_full_name = Fuser_full_name (tem); | |
34a7a267 | 142 | |
e7f8264d | 143 | p = getenv ("NAME"); |
9d36d071 RS |
144 | if (p) |
145 | Vuser_full_name = build_string (p); | |
3347526c RS |
146 | else if (NILP (Vuser_full_name)) |
147 | Vuser_full_name = build_string ("unknown"); | |
3bb9abc8 ST |
148 | |
149 | #ifdef HAVE_SYS_UTSNAME_H | |
150 | { | |
151 | struct utsname uts; | |
152 | uname (&uts); | |
153 | Voperating_system_release = build_string (uts.release); | |
154 | } | |
155 | #else | |
156 | Voperating_system_release = Qnil; | |
157 | #endif | |
35692fe0 JB |
158 | } |
159 | \f | |
a7ca3326 | 160 | DEFUN ("char-to-string", Fchar_to_string, Schar_to_string, 1, 1, 0, |
06283081 PJ |
161 | doc: /* Convert arg CHAR to a string containing that character. |
162 | usage: (char-to-string CHAR) */) | |
5842a27b | 163 | (Lisp_Object character) |
35692fe0 | 164 | { |
13bdea59 | 165 | int c, len; |
d5c2c403 | 166 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
fb8106e8 | 167 | |
1b9c91ed | 168 | CHECK_CHARACTER (character); |
13bdea59 | 169 | c = XFASTINT (character); |
35692fe0 | 170 | |
13bdea59 | 171 | len = CHAR_STRING (c, str); |
e7f8264d | 172 | return make_string_from_bytes ((char *) str, 1, len); |
35692fe0 JB |
173 | } |
174 | ||
c3bb441d | 175 | DEFUN ("byte-to-string", Fbyte_to_string, Sbyte_to_string, 1, 1, 0, |
35f1de62 | 176 | doc: /* Convert arg BYTE to a unibyte string containing that byte. */) |
5842a27b | 177 | (Lisp_Object byte) |
c3bb441d | 178 | { |
64c60c2f | 179 | unsigned char b; |
c3bb441d | 180 | CHECK_NUMBER (byte); |
35f1de62 CY |
181 | if (XINT (byte) < 0 || XINT (byte) > 255) |
182 | error ("Invalid byte"); | |
64c60c2f | 183 | b = XINT (byte); |
e7f8264d | 184 | return make_string_from_bytes ((char *) &b, 1, 1); |
c3bb441d SM |
185 | } |
186 | ||
35692fe0 | 187 | DEFUN ("string-to-char", Fstring_to_char, Sstring_to_char, 1, 1, 0, |
da4adb04 | 188 | doc: /* Return the first character in STRING. */) |
5842a27b | 189 | (register Lisp_Object string) |
35692fe0 JB |
190 | { |
191 | register Lisp_Object val; | |
b7826503 | 192 | CHECK_STRING (string); |
4e491f8d | 193 | if (SCHARS (string)) |
d9d851ea KH |
194 | { |
195 | if (STRING_MULTIBYTE (string)) | |
62a6e103 | 196 | XSETFASTINT (val, STRING_CHAR (SDATA (string))); |
d9d851ea | 197 | else |
4e491f8d | 198 | XSETFASTINT (val, SREF (string, 0)); |
d9d851ea | 199 | } |
35692fe0 | 200 | else |
55561c63 | 201 | XSETFASTINT (val, 0); |
35692fe0 JB |
202 | return val; |
203 | } | |
35692fe0 | 204 | |
a7ca3326 | 205 | DEFUN ("point", Fpoint, Spoint, 0, 0, 0, |
7ee72033 MB |
206 | doc: /* Return value of point, as an integer. |
207 | Beginning of buffer is position (point-min). */) | |
5842a27b | 208 | (void) |
35692fe0 JB |
209 | { |
210 | Lisp_Object temp; | |
6ec8bbd2 | 211 | XSETFASTINT (temp, PT); |
35692fe0 JB |
212 | return temp; |
213 | } | |
214 | ||
a7ca3326 | 215 | DEFUN ("point-marker", Fpoint_marker, Spoint_marker, 0, 0, 0, |
7ee72033 | 216 | doc: /* Return value of point, as a marker object. */) |
5842a27b | 217 | (void) |
35692fe0 | 218 | { |
657924ff | 219 | return build_marker (current_buffer, PT, PT_BYTE); |
35692fe0 JB |
220 | } |
221 | ||
a7ca3326 | 222 | DEFUN ("goto-char", Fgoto_char, Sgoto_char, 1, 1, "NGoto char: ", |
7ee72033 | 223 | doc: /* Set point to POSITION, a number or marker. |
8696b557 EZ |
224 | Beginning of buffer is position (point-min), end is (point-max). |
225 | ||
226 | The return value is POSITION. */) | |
5842a27b | 227 | (register Lisp_Object position) |
35692fe0 | 228 | { |
d311d28c | 229 | ptrdiff_t pos; |
fb8106e8 | 230 | |
72ef82ec RS |
231 | if (MARKERP (position) |
232 | && current_buffer == XMARKER (position)->buffer) | |
ec1c14f6 RS |
233 | { |
234 | pos = marker_position (position); | |
235 | if (pos < BEGV) | |
236 | SET_PT_BOTH (BEGV, BEGV_BYTE); | |
237 | else if (pos > ZV) | |
238 | SET_PT_BOTH (ZV, ZV_BYTE); | |
239 | else | |
240 | SET_PT_BOTH (pos, marker_byte_position (position)); | |
241 | ||
242 | return position; | |
243 | } | |
244 | ||
b7826503 | 245 | CHECK_NUMBER_COERCE_MARKER (position); |
35692fe0 | 246 | |
fb8106e8 | 247 | pos = clip_to_bounds (BEGV, XINT (position), ZV); |
fb8106e8 | 248 | SET_PT (pos); |
2591ec64 | 249 | return position; |
35692fe0 JB |
250 | } |
251 | ||
acb7cc89 GM |
252 | |
253 | /* Return the start or end position of the region. | |
254 | BEGINNINGP non-zero means return the start. | |
255 | If there is no region active, signal an error. */ | |
256 | ||
35692fe0 | 257 | static Lisp_Object |
971de7fb | 258 | region_limit (int beginningp) |
35692fe0 | 259 | { |
acb7cc89 | 260 | Lisp_Object m; |
177c0ea7 | 261 | |
acb7cc89 GM |
262 | if (!NILP (Vtransient_mark_mode) |
263 | && NILP (Vmark_even_if_inactive) | |
4b4deea2 | 264 | && NILP (BVAR (current_buffer, mark_active))) |
8a0ff744 | 265 | xsignal0 (Qmark_inactive); |
177c0ea7 | 266 | |
4b4deea2 | 267 | m = Fmarker_position (BVAR (current_buffer, mark)); |
acb7cc89 | 268 | if (NILP (m)) |
7b5ad687 | 269 | error ("The mark is not set now, so there is no region"); |
177c0ea7 | 270 | |
f520ef9b PE |
271 | /* Clip to the current narrowing (bug#11770). */ |
272 | return make_number ((PT < XFASTINT (m)) == (beginningp != 0) | |
273 | ? PT | |
274 | : clip_to_bounds (BEGV, XFASTINT (m), ZV)); | |
35692fe0 JB |
275 | } |
276 | ||
277 | DEFUN ("region-beginning", Fregion_beginning, Sregion_beginning, 0, 0, 0, | |
7b0815ba | 278 | doc: /* Return the integer value of point or mark, whichever is smaller. */) |
5842a27b | 279 | (void) |
35692fe0 | 280 | { |
acb7cc89 | 281 | return region_limit (1); |
35692fe0 JB |
282 | } |
283 | ||
284 | DEFUN ("region-end", Fregion_end, Sregion_end, 0, 0, 0, | |
7b0815ba | 285 | doc: /* Return the integer value of point or mark, whichever is larger. */) |
5842a27b | 286 | (void) |
35692fe0 | 287 | { |
acb7cc89 | 288 | return region_limit (0); |
35692fe0 JB |
289 | } |
290 | ||
35692fe0 | 291 | DEFUN ("mark-marker", Fmark_marker, Smark_marker, 0, 0, 0, |
7ee72033 | 292 | doc: /* Return this buffer's mark, as a marker object. |
a1f17501 | 293 | Watch out! Moving this marker changes the mark position. |
7ee72033 | 294 | If you set the marker not to point anywhere, the buffer will have no mark. */) |
5842a27b | 295 | (void) |
35692fe0 | 296 | { |
4b4deea2 | 297 | return BVAR (current_buffer, mark); |
35692fe0 | 298 | } |
acb7cc89 | 299 | |
c9ed721d | 300 | \f |
58401a34 SM |
301 | /* Find all the overlays in the current buffer that touch position POS. |
302 | Return the number found, and store them in a vector in VEC | |
303 | of length LEN. */ | |
304 | ||
b081724f PE |
305 | static ptrdiff_t |
306 | overlays_around (EMACS_INT pos, Lisp_Object *vec, ptrdiff_t len) | |
58401a34 | 307 | { |
88006f77 SM |
308 | Lisp_Object overlay, start, end; |
309 | struct Lisp_Overlay *tail; | |
d311d28c | 310 | ptrdiff_t startpos, endpos; |
b081724f | 311 | ptrdiff_t idx = 0; |
58401a34 | 312 | |
88006f77 | 313 | for (tail = current_buffer->overlays_before; tail; tail = tail->next) |
58401a34 | 314 | { |
88006f77 | 315 | XSETMISC (overlay, tail); |
58401a34 SM |
316 | |
317 | end = OVERLAY_END (overlay); | |
318 | endpos = OVERLAY_POSITION (end); | |
319 | if (endpos < pos) | |
320 | break; | |
321 | start = OVERLAY_START (overlay); | |
322 | startpos = OVERLAY_POSITION (start); | |
323 | if (startpos <= pos) | |
324 | { | |
325 | if (idx < len) | |
326 | vec[idx] = overlay; | |
327 | /* Keep counting overlays even if we can't return them all. */ | |
328 | idx++; | |
329 | } | |
330 | } | |
331 | ||
88006f77 | 332 | for (tail = current_buffer->overlays_after; tail; tail = tail->next) |
58401a34 | 333 | { |
88006f77 | 334 | XSETMISC (overlay, tail); |
58401a34 SM |
335 | |
336 | start = OVERLAY_START (overlay); | |
337 | startpos = OVERLAY_POSITION (start); | |
338 | if (pos < startpos) | |
339 | break; | |
340 | end = OVERLAY_END (overlay); | |
341 | endpos = OVERLAY_POSITION (end); | |
342 | if (pos <= endpos) | |
343 | { | |
344 | if (idx < len) | |
345 | vec[idx] = overlay; | |
346 | idx++; | |
347 | } | |
348 | } | |
349 | ||
350 | return idx; | |
351 | } | |
352 | ||
353 | /* Return the value of property PROP, in OBJECT at POSITION. | |
354 | It's the value of PROP that a char inserted at POSITION would get. | |
355 | OBJECT is optional and defaults to the current buffer. | |
356 | If OBJECT is a buffer, then overlay properties are considered as well as | |
357 | text properties. | |
358 | If OBJECT is a window, then that window's buffer is used, but | |
359 | window-specific overlays are considered only if they are associated | |
360 | with OBJECT. */ | |
538f9462 | 361 | Lisp_Object |
971de7fb | 362 | get_pos_property (Lisp_Object position, register Lisp_Object prop, Lisp_Object object) |
58401a34 | 363 | { |
58401a34 SM |
364 | CHECK_NUMBER_COERCE_MARKER (position); |
365 | ||
366 | if (NILP (object)) | |
367 | XSETBUFFER (object, current_buffer); | |
dfe6cbf8 | 368 | else if (WINDOWP (object)) |
077288cf | 369 | object = WGET (XWINDOW (object), buffer); |
dfe6cbf8 SM |
370 | |
371 | if (!BUFFERP (object)) | |
372 | /* pos-property only makes sense in buffers right now, since strings | |
373 | have no overlays and no notion of insertion for which stickiness | |
374 | could be obeyed. */ | |
375 | return Fget_text_property (position, prop, object); | |
376 | else | |
58401a34 | 377 | { |
29cdc13e | 378 | EMACS_INT posn = XINT (position); |
b081724f | 379 | ptrdiff_t noverlays; |
58401a34 SM |
380 | Lisp_Object *overlay_vec, tem; |
381 | struct buffer *obuf = current_buffer; | |
382 | ||
383 | set_buffer_temp (XBUFFER (object)); | |
384 | ||
385 | /* First try with room for 40 overlays. */ | |
386 | noverlays = 40; | |
38182d90 | 387 | overlay_vec = alloca (noverlays * sizeof *overlay_vec); |
58401a34 SM |
388 | noverlays = overlays_around (posn, overlay_vec, noverlays); |
389 | ||
390 | /* If there are more than 40, | |
391 | make enough space for all, and try again. */ | |
392 | if (noverlays > 40) | |
393 | { | |
38182d90 | 394 | overlay_vec = alloca (noverlays * sizeof *overlay_vec); |
58401a34 SM |
395 | noverlays = overlays_around (posn, overlay_vec, noverlays); |
396 | } | |
397 | noverlays = sort_overlays (overlay_vec, noverlays, NULL); | |
398 | ||
399 | set_buffer_temp (obuf); | |
400 | ||
401 | /* Now check the overlays in order of decreasing priority. */ | |
402 | while (--noverlays >= 0) | |
403 | { | |
404 | Lisp_Object ol = overlay_vec[noverlays]; | |
405 | tem = Foverlay_get (ol, prop); | |
406 | if (!NILP (tem)) | |
407 | { | |
408 | /* Check the overlay is indeed active at point. */ | |
409 | Lisp_Object start = OVERLAY_START (ol), finish = OVERLAY_END (ol); | |
410 | if ((OVERLAY_POSITION (start) == posn | |
411 | && XMARKER (start)->insertion_type == 1) | |
412 | || (OVERLAY_POSITION (finish) == posn | |
413 | && XMARKER (finish)->insertion_type == 0)) | |
414 | ; /* The overlay will not cover a char inserted at point. */ | |
415 | else | |
416 | { | |
417 | return tem; | |
418 | } | |
419 | } | |
420 | } | |
177c0ea7 | 421 | |
7a6a86ad | 422 | { /* Now check the text properties. */ |
dfe6cbf8 SM |
423 | int stickiness = text_property_stickiness (prop, position, object); |
424 | if (stickiness > 0) | |
425 | return Fget_text_property (position, prop, object); | |
426 | else if (stickiness < 0 | |
427 | && XINT (position) > BUF_BEGV (XBUFFER (object))) | |
428 | return Fget_text_property (make_number (XINT (position) - 1), | |
429 | prop, object); | |
430 | else | |
431 | return Qnil; | |
432 | } | |
58401a34 | 433 | } |
58401a34 SM |
434 | } |
435 | ||
a3caef99 | 436 | /* Find the field surrounding POS in *BEG and *END. If POS is nil, |
59062dce | 437 | the value of point is used instead. If BEG or END is null, |
acb7cc89 | 438 | means don't store the beginning or end of the field. |
a3caef99 | 439 | |
9ac741c5 MB |
440 | BEG_LIMIT and END_LIMIT serve to limit the ranged of the returned |
441 | results; they do not effect boundary behavior. | |
442 | ||
a3caef99 | 443 | If MERGE_AT_BOUNDARY is nonzero, then if POS is at the very first |
ee547125 MB |
444 | position of a field, then the beginning of the previous field is |
445 | returned instead of the beginning of POS's field (since the end of a | |
446 | field is actually also the beginning of the next input field, this | |
447 | behavior is sometimes useful). Additionally in the MERGE_AT_BOUNDARY | |
448 | true case, if two fields are separated by a field with the special | |
449 | value `boundary', and POS lies within it, then the two separated | |
450 | fields are considered to be adjacent, and POS between them, when | |
451 | finding the beginning and ending of the "merged" field. | |
a3caef99 RS |
452 | |
453 | Either BEG or END may be 0, in which case the corresponding value | |
454 | is not stored. */ | |
455 | ||
acb7cc89 | 456 | static void |
413d18e7 EZ |
457 | find_field (Lisp_Object pos, Lisp_Object merge_at_boundary, |
458 | Lisp_Object beg_limit, | |
d311d28c | 459 | ptrdiff_t *beg, Lisp_Object end_limit, ptrdiff_t *end) |
0daf6e8d | 460 | { |
ee547125 MB |
461 | /* Fields right before and after the point. */ |
462 | Lisp_Object before_field, after_field; | |
a3caef99 RS |
463 | /* 1 if POS counts as the start of a field. */ |
464 | int at_field_start = 0; | |
465 | /* 1 if POS counts as the end of a field. */ | |
466 | int at_field_end = 0; | |
ee547125 | 467 | |
0daf6e8d GM |
468 | if (NILP (pos)) |
469 | XSETFASTINT (pos, PT); | |
470 | else | |
b7826503 | 471 | CHECK_NUMBER_COERCE_MARKER (pos); |
0daf6e8d | 472 | |
acb7cc89 | 473 | after_field |
58401a34 | 474 | = get_char_property_and_overlay (pos, Qfield, Qnil, NULL); |
acb7cc89 GM |
475 | before_field |
476 | = (XFASTINT (pos) > BEGV | |
7ae1c032 | 477 | ? get_char_property_and_overlay (make_number (XINT (pos) - 1), |
58401a34 | 478 | Qfield, Qnil, NULL) |
e477bb04 KL |
479 | /* Using nil here would be a more obvious choice, but it would |
480 | fail when the buffer starts with a non-sticky field. */ | |
481 | : after_field); | |
ee547125 MB |
482 | |
483 | /* See if we need to handle the case where MERGE_AT_BOUNDARY is nil | |
484 | and POS is at beginning of a field, which can also be interpreted | |
485 | as the end of the previous field. Note that the case where if | |
486 | MERGE_AT_BOUNDARY is non-nil (see function comment) is actually the | |
487 | more natural one; then we avoid treating the beginning of a field | |
488 | specially. */ | |
58401a34 | 489 | if (NILP (merge_at_boundary)) |
ee547125 | 490 | { |
58401a34 SM |
491 | Lisp_Object field = get_pos_property (pos, Qfield, Qnil); |
492 | if (!EQ (field, after_field)) | |
ee547125 | 493 | at_field_end = 1; |
58401a34 SM |
494 | if (!EQ (field, before_field)) |
495 | at_field_start = 1; | |
2db1186a SM |
496 | if (NILP (field) && at_field_start && at_field_end) |
497 | /* If an inserted char would have a nil field while the surrounding | |
498 | text is non-nil, we're probably not looking at a | |
499 | zero-length field, but instead at a non-nil field that's | |
500 | not intended for editing (such as comint's prompts). */ | |
501 | at_field_end = at_field_start = 0; | |
0daf6e8d GM |
502 | } |
503 | ||
ee547125 MB |
504 | /* Note about special `boundary' fields: |
505 | ||
506 | Consider the case where the point (`.') is between the fields `x' and `y': | |
507 | ||
508 | xxxx.yyyy | |
509 | ||
510 | In this situation, if merge_at_boundary is true, we consider the | |
511 | `x' and `y' fields as forming one big merged field, and so the end | |
512 | of the field is the end of `y'. | |
513 | ||
514 | However, if `x' and `y' are separated by a special `boundary' field | |
515 | (a field with a `field' char-property of 'boundary), then we ignore | |
516 | this special field when merging adjacent fields. Here's the same | |
517 | situation, but with a `boundary' field between the `x' and `y' fields: | |
518 | ||
519 | xxx.BBBByyyy | |
520 | ||
521 | Here, if point is at the end of `x', the beginning of `y', or | |
522 | anywhere in-between (within the `boundary' field), we merge all | |
523 | three fields and consider the beginning as being the beginning of | |
524 | the `x' field, and the end as being the end of the `y' field. */ | |
525 | ||
0daf6e8d | 526 | if (beg) |
acb7cc89 GM |
527 | { |
528 | if (at_field_start) | |
529 | /* POS is at the edge of a field, and we should consider it as | |
530 | the beginning of the following field. */ | |
531 | *beg = XFASTINT (pos); | |
532 | else | |
533 | /* Find the previous field boundary. */ | |
534 | { | |
58401a34 | 535 | Lisp_Object p = pos; |
acb7cc89 GM |
536 | if (!NILP (merge_at_boundary) && EQ (before_field, Qboundary)) |
537 | /* Skip a `boundary' field. */ | |
58401a34 | 538 | p = Fprevious_single_char_property_change (p, Qfield, Qnil, |
9ac741c5 | 539 | beg_limit); |
58401a34 SM |
540 | |
541 | p = Fprevious_single_char_property_change (p, Qfield, Qnil, | |
542 | beg_limit); | |
543 | *beg = NILP (p) ? BEGV : XFASTINT (p); | |
acb7cc89 GM |
544 | } |
545 | } | |
0daf6e8d GM |
546 | |
547 | if (end) | |
acb7cc89 GM |
548 | { |
549 | if (at_field_end) | |
550 | /* POS is at the edge of a field, and we should consider it as | |
551 | the end of the previous field. */ | |
552 | *end = XFASTINT (pos); | |
553 | else | |
554 | /* Find the next field boundary. */ | |
555 | { | |
556 | if (!NILP (merge_at_boundary) && EQ (after_field, Qboundary)) | |
557 | /* Skip a `boundary' field. */ | |
9ac741c5 MB |
558 | pos = Fnext_single_char_property_change (pos, Qfield, Qnil, |
559 | end_limit); | |
ee547125 | 560 | |
9ac741c5 MB |
561 | pos = Fnext_single_char_property_change (pos, Qfield, Qnil, |
562 | end_limit); | |
acb7cc89 GM |
563 | *end = NILP (pos) ? ZV : XFASTINT (pos); |
564 | } | |
565 | } | |
0daf6e8d | 566 | } |
acb7cc89 | 567 | |
0daf6e8d | 568 | \f |
d01f3570 | 569 | DEFUN ("delete-field", Fdelete_field, Sdelete_field, 0, 1, 0, |
7ee72033 | 570 | doc: /* Delete the field surrounding POS. |
a1f17501 | 571 | A field is a region of text with the same `field' property. |
f554db0f | 572 | If POS is nil, the value of point is used for POS. */) |
5842a27b | 573 | (Lisp_Object pos) |
0daf6e8d | 574 | { |
d311d28c | 575 | ptrdiff_t beg, end; |
9ac741c5 | 576 | find_field (pos, Qnil, Qnil, &beg, Qnil, &end); |
0daf6e8d GM |
577 | if (beg != end) |
578 | del_range (beg, end); | |
d01f3570 | 579 | return Qnil; |
0daf6e8d GM |
580 | } |
581 | ||
582 | DEFUN ("field-string", Ffield_string, Sfield_string, 0, 1, 0, | |
7ee72033 | 583 | doc: /* Return the contents of the field surrounding POS as a string. |
a1f17501 | 584 | A field is a region of text with the same `field' property. |
f554db0f | 585 | If POS is nil, the value of point is used for POS. */) |
5842a27b | 586 | (Lisp_Object pos) |
0daf6e8d | 587 | { |
d311d28c | 588 | ptrdiff_t beg, end; |
9ac741c5 | 589 | find_field (pos, Qnil, Qnil, &beg, Qnil, &end); |
0daf6e8d GM |
590 | return make_buffer_string (beg, end, 1); |
591 | } | |
592 | ||
593 | DEFUN ("field-string-no-properties", Ffield_string_no_properties, Sfield_string_no_properties, 0, 1, 0, | |
7a6a86ad | 594 | doc: /* Return the contents of the field around POS, without text properties. |
a1f17501 | 595 | A field is a region of text with the same `field' property. |
f554db0f | 596 | If POS is nil, the value of point is used for POS. */) |
5842a27b | 597 | (Lisp_Object pos) |
0daf6e8d | 598 | { |
d311d28c | 599 | ptrdiff_t beg, end; |
9ac741c5 | 600 | find_field (pos, Qnil, Qnil, &beg, Qnil, &end); |
0daf6e8d GM |
601 | return make_buffer_string (beg, end, 0); |
602 | } | |
603 | ||
9ac741c5 | 604 | DEFUN ("field-beginning", Ffield_beginning, Sfield_beginning, 0, 3, 0, |
7ee72033 | 605 | doc: /* Return the beginning of the field surrounding POS. |
a1f17501 PJ |
606 | A field is a region of text with the same `field' property. |
607 | If POS is nil, the value of point is used for POS. | |
608 | If ESCAPE-FROM-EDGE is non-nil and POS is at the beginning of its | |
9ac741c5 MB |
609 | field, then the beginning of the *previous* field is returned. |
610 | If LIMIT is non-nil, it is a buffer position; if the beginning of the field | |
f554db0f | 611 | is before LIMIT, then LIMIT will be returned instead. */) |
5842a27b | 612 | (Lisp_Object pos, Lisp_Object escape_from_edge, Lisp_Object limit) |
0daf6e8d | 613 | { |
d311d28c | 614 | ptrdiff_t beg; |
9ac741c5 | 615 | find_field (pos, escape_from_edge, limit, &beg, Qnil, 0); |
0daf6e8d GM |
616 | return make_number (beg); |
617 | } | |
618 | ||
a7ca3326 | 619 | DEFUN ("field-end", Ffield_end, Sfield_end, 0, 3, 0, |
7ee72033 | 620 | doc: /* Return the end of the field surrounding POS. |
a1f17501 PJ |
621 | A field is a region of text with the same `field' property. |
622 | If POS is nil, the value of point is used for POS. | |
623 | If ESCAPE-FROM-EDGE is non-nil and POS is at the end of its field, | |
9ac741c5 MB |
624 | then the end of the *following* field is returned. |
625 | If LIMIT is non-nil, it is a buffer position; if the end of the field | |
f554db0f | 626 | is after LIMIT, then LIMIT will be returned instead. */) |
5842a27b | 627 | (Lisp_Object pos, Lisp_Object escape_from_edge, Lisp_Object limit) |
0daf6e8d | 628 | { |
d311d28c | 629 | ptrdiff_t end; |
9ac741c5 | 630 | find_field (pos, escape_from_edge, Qnil, 0, limit, &end); |
0daf6e8d GM |
631 | return make_number (end); |
632 | } | |
633 | ||
a7ca3326 | 634 | DEFUN ("constrain-to-field", Fconstrain_to_field, Sconstrain_to_field, 2, 5, 0, |
7ee72033 | 635 | doc: /* Return the position closest to NEW-POS that is in the same field as OLD-POS. |
a1f17501 | 636 | A field is a region of text with the same `field' property. |
66c5eebd CY |
637 | |
638 | If NEW-POS is nil, then use the current point instead, and move point | |
639 | to the resulting constrained position, in addition to returning that | |
640 | position. | |
a1f17501 PJ |
641 | |
642 | If OLD-POS is at the boundary of two fields, then the allowable | |
643 | positions for NEW-POS depends on the value of the optional argument | |
644 | ESCAPE-FROM-EDGE: If ESCAPE-FROM-EDGE is nil, then NEW-POS is | |
645 | constrained to the field that has the same `field' char-property | |
646 | as any new characters inserted at OLD-POS, whereas if ESCAPE-FROM-EDGE | |
647 | is non-nil, NEW-POS is constrained to the union of the two adjacent | |
648 | fields. Additionally, if two fields are separated by another field with | |
649 | the special value `boundary', then any point within this special field is | |
650 | also considered to be `on the boundary'. | |
651 | ||
652 | If the optional argument ONLY-IN-LINE is non-nil and constraining | |
653 | NEW-POS would move it to a different line, NEW-POS is returned | |
654 | unconstrained. This useful for commands that move by line, like | |
655 | \\[next-line] or \\[beginning-of-line], which should generally respect field boundaries | |
656 | only in the case where they can still move to the right line. | |
657 | ||
658 | If the optional argument INHIBIT-CAPTURE-PROPERTY is non-nil, and OLD-POS has | |
659 | a non-nil property of that name, then any field boundaries are ignored. | |
660 | ||
7ee72033 | 661 | Field boundaries are not noticed if `inhibit-field-text-motion' is non-nil. */) |
5842a27b | 662 | (Lisp_Object new_pos, Lisp_Object old_pos, Lisp_Object escape_from_edge, Lisp_Object only_in_line, Lisp_Object inhibit_capture_property) |
0daf6e8d GM |
663 | { |
664 | /* If non-zero, then the original point, before re-positioning. */ | |
d311d28c | 665 | ptrdiff_t orig_point = 0; |
d63b4018 KR |
666 | int fwd; |
667 | Lisp_Object prev_old, prev_new; | |
aac18aa4 | 668 | |
0daf6e8d GM |
669 | if (NILP (new_pos)) |
670 | /* Use the current point, and afterwards, set it. */ | |
671 | { | |
672 | orig_point = PT; | |
673 | XSETFASTINT (new_pos, PT); | |
674 | } | |
675 | ||
e477bb04 KL |
676 | CHECK_NUMBER_COERCE_MARKER (new_pos); |
677 | CHECK_NUMBER_COERCE_MARKER (old_pos); | |
678 | ||
d311d28c | 679 | fwd = (XINT (new_pos) > XINT (old_pos)); |
e477bb04 | 680 | |
d311d28c PE |
681 | prev_old = make_number (XINT (old_pos) - 1); |
682 | prev_new = make_number (XINT (new_pos) - 1); | |
aac18aa4 | 683 | |
ee5cd4db GM |
684 | if (NILP (Vinhibit_field_text_motion) |
685 | && !EQ (new_pos, old_pos) | |
42ab8e36 MB |
686 | && (!NILP (Fget_char_property (new_pos, Qfield, Qnil)) |
687 | || !NILP (Fget_char_property (old_pos, Qfield, Qnil)) | |
e477bb04 KL |
688 | /* To recognize field boundaries, we must also look at the |
689 | previous positions; we could use `get_pos_property' | |
690 | instead, but in itself that would fail inside non-sticky | |
691 | fields (like comint prompts). */ | |
692 | || (XFASTINT (new_pos) > BEGV | |
42ab8e36 | 693 | && !NILP (Fget_char_property (prev_new, Qfield, Qnil))) |
e477bb04 | 694 | || (XFASTINT (old_pos) > BEGV |
42ab8e36 | 695 | && !NILP (Fget_char_property (prev_old, Qfield, Qnil)))) |
ee547125 | 696 | && (NILP (inhibit_capture_property) |
e477bb04 KL |
697 | /* Field boundaries are again a problem; but now we must |
698 | decide the case exactly, so we need to call | |
699 | `get_pos_property' as well. */ | |
700 | || (NILP (get_pos_property (old_pos, inhibit_capture_property, Qnil)) | |
701 | && (XFASTINT (old_pos) <= BEGV | |
42ab8e36 MB |
702 | || NILP (Fget_char_property (old_pos, inhibit_capture_property, Qnil)) |
703 | || NILP (Fget_char_property (prev_old, inhibit_capture_property, Qnil)))))) | |
2cb3aec4 KL |
704 | /* It is possible that NEW_POS is not within the same field as |
705 | OLD_POS; try to move NEW_POS so that it is. */ | |
0daf6e8d | 706 | { |
d311d28c | 707 | ptrdiff_t shortage; |
0daf6e8d GM |
708 | Lisp_Object field_bound; |
709 | ||
0daf6e8d | 710 | if (fwd) |
9ac741c5 | 711 | field_bound = Ffield_end (old_pos, escape_from_edge, new_pos); |
0daf6e8d | 712 | else |
9ac741c5 | 713 | field_bound = Ffield_beginning (old_pos, escape_from_edge, new_pos); |
0daf6e8d | 714 | |
10b0f752 MB |
715 | if (/* See if ESCAPE_FROM_EDGE caused FIELD_BOUND to jump to the |
716 | other side of NEW_POS, which would mean that NEW_POS is | |
717 | already acceptable, and it's not necessary to constrain it | |
718 | to FIELD_BOUND. */ | |
719 | ((XFASTINT (field_bound) < XFASTINT (new_pos)) ? fwd : !fwd) | |
720 | /* NEW_POS should be constrained, but only if either | |
721 | ONLY_IN_LINE is nil (in which case any constraint is OK), | |
722 | or NEW_POS and FIELD_BOUND are on the same line (in which | |
723 | case the constraint is OK even if ONLY_IN_LINE is non-nil). */ | |
724 | && (NILP (only_in_line) | |
725 | /* This is the ONLY_IN_LINE case, check that NEW_POS and | |
726 | FIELD_BOUND are on the same line by seeing whether | |
727 | there's an intervening newline or not. */ | |
728 | || (scan_buffer ('\n', | |
729 | XFASTINT (new_pos), XFASTINT (field_bound), | |
730 | fwd ? -1 : 1, &shortage, 1), | |
731 | shortage != 0))) | |
0daf6e8d GM |
732 | /* Constrain NEW_POS to FIELD_BOUND. */ |
733 | new_pos = field_bound; | |
734 | ||
735 | if (orig_point && XFASTINT (new_pos) != orig_point) | |
736 | /* The NEW_POS argument was originally nil, so automatically set PT. */ | |
737 | SET_PT (XFASTINT (new_pos)); | |
738 | } | |
739 | ||
740 | return new_pos; | |
741 | } | |
acb7cc89 | 742 | |
0daf6e8d | 743 | \f |
a7ca3326 | 744 | DEFUN ("line-beginning-position", |
6d57c318 | 745 | Fline_beginning_position, Sline_beginning_position, 0, 1, 0, |
7ee72033 | 746 | doc: /* Return the character position of the first character on the current line. |
a1f17501 PJ |
747 | With argument N not nil or 1, move forward N - 1 lines first. |
748 | If scan reaches end of buffer, return that position. | |
6d57c318 | 749 | |
cd21226d EZ |
750 | The returned position is of the first character in the logical order, |
751 | i.e. the one that has the smallest character position. | |
752 | ||
2cb3aec4 KL |
753 | This function constrains the returned position to the current field |
754 | unless that would be on a different line than the original, | |
755 | unconstrained result. If N is nil or 1, and a front-sticky field | |
756 | starts at point, the scan stops as soon as it starts. To ignore field | |
6d57c318 | 757 | boundaries bind `inhibit-field-text-motion' to t. |
a1f17501 | 758 | |
7ee72033 | 759 | This function does not move point. */) |
5842a27b | 760 | (Lisp_Object n) |
c9ed721d | 761 | { |
d311d28c PE |
762 | ptrdiff_t orig, orig_byte, end; |
763 | ptrdiff_t count = SPECPDL_INDEX (); | |
4e8f005c | 764 | specbind (Qinhibit_point_motion_hooks, Qt); |
c9ed721d RS |
765 | |
766 | if (NILP (n)) | |
767 | XSETFASTINT (n, 1); | |
768 | else | |
b7826503 | 769 | CHECK_NUMBER (n); |
c9ed721d RS |
770 | |
771 | orig = PT; | |
ec1c14f6 | 772 | orig_byte = PT_BYTE; |
c9ed721d RS |
773 | Fforward_line (make_number (XINT (n) - 1)); |
774 | end = PT; | |
e2dae3f2 | 775 | |
ec1c14f6 | 776 | SET_PT_BOTH (orig, orig_byte); |
35692fe0 | 777 | |
4e8f005c CY |
778 | unbind_to (count, Qnil); |
779 | ||
0daf6e8d | 780 | /* Return END constrained to the current input field. */ |
ee5cd4db GM |
781 | return Fconstrain_to_field (make_number (end), make_number (orig), |
782 | XINT (n) != 1 ? Qt : Qnil, | |
ee547125 | 783 | Qt, Qnil); |
c9ed721d RS |
784 | } |
785 | ||
a7ca3326 | 786 | DEFUN ("line-end-position", Fline_end_position, Sline_end_position, 0, 1, 0, |
7ee72033 | 787 | doc: /* Return the character position of the last character on the current line. |
a1f17501 PJ |
788 | With argument N not nil or 1, move forward N - 1 lines first. |
789 | If scan reaches end of buffer, return that position. | |
6d57c318 | 790 | |
cd21226d EZ |
791 | The returned position is of the last character in the logical order, |
792 | i.e. the character whose buffer position is the largest one. | |
793 | ||
2cb3aec4 KL |
794 | This function constrains the returned position to the current field |
795 | unless that would be on a different line than the original, | |
796 | unconstrained result. If N is nil or 1, and a rear-sticky field ends | |
797 | at point, the scan stops as soon as it starts. To ignore field | |
6d57c318 MB |
798 | boundaries bind `inhibit-field-text-motion' to t. |
799 | ||
7ee72033 | 800 | This function does not move point. */) |
5842a27b | 801 | (Lisp_Object n) |
c9ed721d | 802 | { |
d311d28c PE |
803 | ptrdiff_t clipped_n; |
804 | ptrdiff_t end_pos; | |
805 | ptrdiff_t orig = PT; | |
0daf6e8d | 806 | |
c9ed721d RS |
807 | if (NILP (n)) |
808 | XSETFASTINT (n, 1); | |
809 | else | |
b7826503 | 810 | CHECK_NUMBER (n); |
c9ed721d | 811 | |
d311d28c PE |
812 | clipped_n = clip_to_bounds (PTRDIFF_MIN + 1, XINT (n), PTRDIFF_MAX); |
813 | end_pos = find_before_next_newline (orig, 0, clipped_n - (clipped_n <= 0)); | |
0daf6e8d GM |
814 | |
815 | /* Return END_POS constrained to the current input field. */ | |
ee5cd4db | 816 | return Fconstrain_to_field (make_number (end_pos), make_number (orig), |
ee547125 | 817 | Qnil, Qt, Qnil); |
c9ed721d | 818 | } |
6d57c318 | 819 | |
eeaea515 | 820 | \f |
35692fe0 | 821 | Lisp_Object |
971de7fb | 822 | save_excursion_save (void) |
35692fe0 | 823 | { |
077288cf | 824 | int visible = (XBUFFER (WGET (XWINDOW (selected_window), buffer)) |
eeaea515 DA |
825 | == current_buffer); |
826 | ||
827 | return Fcons (Fpoint_marker (), | |
828 | Fcons (Fcopy_marker (BVAR (current_buffer, mark), Qnil), | |
829 | Fcons (visible ? Qt : Qnil, | |
830 | Fcons (BVAR (current_buffer, mark_active), | |
831 | selected_window)))); | |
35692fe0 JB |
832 | } |
833 | ||
834 | Lisp_Object | |
eeaea515 | 835 | save_excursion_restore (Lisp_Object info) |
35692fe0 | 836 | { |
eeaea515 DA |
837 | Lisp_Object tem, tem1, omark, nmark; |
838 | struct gcpro gcpro1, gcpro2, gcpro3; | |
839 | int visible_p; | |
840 | ||
841 | tem = Fmarker_buffer (XCAR (info)); | |
842 | /* If buffer being returned to is now deleted, avoid error */ | |
843 | /* Otherwise could get error here while unwinding to top level | |
844 | and crash */ | |
845 | /* In that case, Fmarker_buffer returns nil now. */ | |
846 | if (NILP (tem)) | |
847 | return Qnil; | |
848 | ||
849 | omark = nmark = Qnil; | |
850 | GCPRO3 (info, omark, nmark); | |
851 | ||
852 | Fset_buffer (tem); | |
853 | ||
854 | /* Point marker. */ | |
855 | tem = XCAR (info); | |
856 | Fgoto_char (tem); | |
857 | unchain_marker (XMARKER (tem)); | |
858 | ||
859 | /* Mark marker. */ | |
860 | info = XCDR (info); | |
861 | tem = XCAR (info); | |
862 | omark = Fmarker_position (BVAR (current_buffer, mark)); | |
863 | Fset_marker (BVAR (current_buffer, mark), tem, Fcurrent_buffer ()); | |
864 | nmark = Fmarker_position (tem); | |
865 | unchain_marker (XMARKER (tem)); | |
866 | ||
867 | /* visible */ | |
868 | info = XCDR (info); | |
869 | visible_p = !NILP (XCAR (info)); | |
870 | ||
871 | #if 0 /* We used to make the current buffer visible in the selected window | |
872 | if that was true previously. That avoids some anomalies. | |
873 | But it creates others, and it wasn't documented, and it is simpler | |
874 | and cleaner never to alter the window/buffer connections. */ | |
875 | tem1 = Fcar (tem); | |
876 | if (!NILP (tem1) | |
077288cf | 877 | && current_buffer != XBUFFER (WGET (XWINDOW (selected_window), buffer))) |
eeaea515 DA |
878 | Fswitch_to_buffer (Fcurrent_buffer (), Qnil); |
879 | #endif /* 0 */ | |
880 | ||
881 | /* Mark active */ | |
882 | info = XCDR (info); | |
883 | tem = XCAR (info); | |
884 | tem1 = BVAR (current_buffer, mark_active); | |
885 | BVAR (current_buffer, mark_active) = tem; | |
886 | ||
887 | /* If mark is active now, and either was not active | |
888 | or was at a different place, run the activate hook. */ | |
889 | if (! NILP (tem)) | |
dee091a3 | 890 | { |
eeaea515 DA |
891 | if (! EQ (omark, nmark)) |
892 | { | |
893 | tem = intern ("activate-mark-hook"); | |
894 | Frun_hooks (1, &tem); | |
895 | } | |
896 | } | |
897 | /* If mark has ceased to be active, run deactivate hook. */ | |
898 | else if (! NILP (tem1)) | |
899 | { | |
900 | tem = intern ("deactivate-mark-hook"); | |
901 | Frun_hooks (1, &tem); | |
9fed2b18 | 902 | } |
2483cf58 | 903 | |
eeaea515 DA |
904 | /* If buffer was visible in a window, and a different window was |
905 | selected, and the old selected window is still showing this | |
906 | buffer, restore point in that window. */ | |
907 | tem = XCDR (info); | |
908 | if (visible_p | |
909 | && !EQ (tem, selected_window) | |
077288cf | 910 | && (tem1 = WGET (XWINDOW (tem), buffer), |
eeaea515 DA |
911 | (/* Window is live... */ |
912 | BUFFERP (tem1) | |
913 | /* ...and it shows the current buffer. */ | |
914 | && XBUFFER (tem1) == current_buffer))) | |
915 | Fset_window_point (tem, make_number (PT)); | |
916 | ||
917 | UNGCPRO; | |
35692fe0 JB |
918 | return Qnil; |
919 | } | |
920 | ||
921 | DEFUN ("save-excursion", Fsave_excursion, Ssave_excursion, 0, UNEVALLED, 0, | |
7ee72033 | 922 | doc: /* Save point, mark, and current buffer; execute BODY; restore those things. |
a1f17501 PJ |
923 | Executes BODY just like `progn'. |
924 | The values of point, mark and the current buffer are restored | |
925 | even in case of abnormal exit (throw or error). | |
926 | The state of activation of the mark is also restored. | |
927 | ||
928 | This construct does not save `deactivate-mark', and therefore | |
929 | functions that change the buffer will still cause deactivation | |
930 | of the mark at the end of the command. To prevent that, bind | |
33c2d29f MB |
931 | `deactivate-mark' with `let'. |
932 | ||
7450fd36 SM |
933 | If you only want to save the current buffer but not point nor mark, |
934 | then just use `save-current-buffer', or even `with-current-buffer'. | |
935 | ||
33c2d29f | 936 | usage: (save-excursion &rest BODY) */) |
5842a27b | 937 | (Lisp_Object args) |
35692fe0 JB |
938 | { |
939 | register Lisp_Object val; | |
d311d28c | 940 | ptrdiff_t count = SPECPDL_INDEX (); |
35692fe0 JB |
941 | |
942 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
4bc8c7d2 RS |
943 | |
944 | val = Fprogn (args); | |
945 | return unbind_to (count, val); | |
946 | } | |
947 | ||
948 | DEFUN ("save-current-buffer", Fsave_current_buffer, Ssave_current_buffer, 0, UNEVALLED, 0, | |
7ee72033 | 949 | doc: /* Save the current buffer; execute BODY; restore the current buffer. |
33c2d29f MB |
950 | Executes BODY just like `progn'. |
951 | usage: (save-current-buffer &rest BODY) */) | |
5842a27b | 952 | (Lisp_Object args) |
4bc8c7d2 | 953 | { |
acb7cc89 | 954 | Lisp_Object val; |
d311d28c | 955 | ptrdiff_t count = SPECPDL_INDEX (); |
4bc8c7d2 | 956 | |
cb5e5f74 | 957 | record_unwind_protect (set_buffer_if_live, Fcurrent_buffer ()); |
4bc8c7d2 | 958 | |
35692fe0 JB |
959 | val = Fprogn (args); |
960 | return unbind_to (count, val); | |
961 | } | |
962 | \f | |
95dccf75 | 963 | DEFUN ("buffer-size", Fbufsize, Sbufsize, 0, 1, 0, |
7ee72033 MB |
964 | doc: /* Return the number of characters in the current buffer. |
965 | If BUFFER, return the number of characters in that buffer instead. */) | |
5842a27b | 966 | (Lisp_Object buffer) |
35692fe0 | 967 | { |
95dccf75 RS |
968 | if (NILP (buffer)) |
969 | return make_number (Z - BEG); | |
02050596 RS |
970 | else |
971 | { | |
b7826503 | 972 | CHECK_BUFFER (buffer); |
02050596 RS |
973 | return make_number (BUF_Z (XBUFFER (buffer)) |
974 | - BUF_BEG (XBUFFER (buffer))); | |
975 | } | |
35692fe0 JB |
976 | } |
977 | ||
978 | DEFUN ("point-min", Fpoint_min, Spoint_min, 0, 0, 0, | |
7ee72033 MB |
979 | doc: /* Return the minimum permissible value of point in the current buffer. |
980 | This is 1, unless narrowing (a buffer restriction) is in effect. */) | |
5842a27b | 981 | (void) |
35692fe0 JB |
982 | { |
983 | Lisp_Object temp; | |
55561c63 | 984 | XSETFASTINT (temp, BEGV); |
35692fe0 JB |
985 | return temp; |
986 | } | |
987 | ||
988 | DEFUN ("point-min-marker", Fpoint_min_marker, Spoint_min_marker, 0, 0, 0, | |
7ee72033 MB |
989 | doc: /* Return a marker to the minimum permissible value of point in this buffer. |
990 | This is the beginning, unless narrowing (a buffer restriction) is in effect. */) | |
5842a27b | 991 | (void) |
35692fe0 | 992 | { |
657924ff | 993 | return build_marker (current_buffer, BEGV, BEGV_BYTE); |
35692fe0 JB |
994 | } |
995 | ||
996 | DEFUN ("point-max", Fpoint_max, Spoint_max, 0, 0, 0, | |
7ee72033 | 997 | doc: /* Return the maximum permissible value of point in the current buffer. |
a1f17501 | 998 | This is (1+ (buffer-size)), unless narrowing (a buffer restriction) |
7ee72033 | 999 | is in effect, in which case it is less. */) |
5842a27b | 1000 | (void) |
35692fe0 JB |
1001 | { |
1002 | Lisp_Object temp; | |
55561c63 | 1003 | XSETFASTINT (temp, ZV); |
35692fe0 JB |
1004 | return temp; |
1005 | } | |
1006 | ||
a7ca3326 | 1007 | DEFUN ("point-max-marker", Fpoint_max_marker, Spoint_max_marker, 0, 0, 0, |
7ee72033 | 1008 | doc: /* Return a marker to the maximum permissible value of point in this buffer. |
a1f17501 | 1009 | This is (1+ (buffer-size)), unless narrowing (a buffer restriction) |
7ee72033 | 1010 | is in effect, in which case it is less. */) |
5842a27b | 1011 | (void) |
35692fe0 | 1012 | { |
657924ff | 1013 | return build_marker (current_buffer, ZV, ZV_BYTE); |
35692fe0 JB |
1014 | } |
1015 | ||
c86212b9 | 1016 | DEFUN ("gap-position", Fgap_position, Sgap_position, 0, 0, 0, |
7ee72033 MB |
1017 | doc: /* Return the position of the gap, in the current buffer. |
1018 | See also `gap-size'. */) | |
5842a27b | 1019 | (void) |
c86212b9 RS |
1020 | { |
1021 | Lisp_Object temp; | |
1022 | XSETFASTINT (temp, GPT); | |
1023 | return temp; | |
1024 | } | |
1025 | ||
1026 | DEFUN ("gap-size", Fgap_size, Sgap_size, 0, 0, 0, | |
7ee72033 MB |
1027 | doc: /* Return the size of the current buffer's gap. |
1028 | See also `gap-position'. */) | |
5842a27b | 1029 | (void) |
c86212b9 RS |
1030 | { |
1031 | Lisp_Object temp; | |
1032 | XSETFASTINT (temp, GAP_SIZE); | |
1033 | return temp; | |
1034 | } | |
1035 | ||
7df74da6 | 1036 | DEFUN ("position-bytes", Fposition_bytes, Sposition_bytes, 1, 1, 0, |
7ee72033 MB |
1037 | doc: /* Return the byte position for character position POSITION. |
1038 | If POSITION is out of range, the value is nil. */) | |
5842a27b | 1039 | (Lisp_Object position) |
7df74da6 | 1040 | { |
b7826503 | 1041 | CHECK_NUMBER_COERCE_MARKER (position); |
fcf9683e KH |
1042 | if (XINT (position) < BEG || XINT (position) > Z) |
1043 | return Qnil; | |
fa8a5a15 | 1044 | return make_number (CHAR_TO_BYTE (XINT (position))); |
7df74da6 | 1045 | } |
3ab0732d RS |
1046 | |
1047 | DEFUN ("byte-to-position", Fbyte_to_position, Sbyte_to_position, 1, 1, 0, | |
7ee72033 MB |
1048 | doc: /* Return the character position for byte position BYTEPOS. |
1049 | If BYTEPOS is out of range, the value is nil. */) | |
5842a27b | 1050 | (Lisp_Object bytepos) |
3ab0732d | 1051 | { |
b7826503 | 1052 | CHECK_NUMBER (bytepos); |
fcf9683e KH |
1053 | if (XINT (bytepos) < BEG_BYTE || XINT (bytepos) > Z_BYTE) |
1054 | return Qnil; | |
3ab0732d RS |
1055 | return make_number (BYTE_TO_CHAR (XINT (bytepos))); |
1056 | } | |
7df74da6 | 1057 | \f |
a7ca3326 | 1058 | DEFUN ("following-char", Ffollowing_char, Sfollowing_char, 0, 0, 0, |
7ee72033 MB |
1059 | doc: /* Return the character following point, as a number. |
1060 | At the end of the buffer or accessible region, return 0. */) | |
5842a27b | 1061 | (void) |
35692fe0 JB |
1062 | { |
1063 | Lisp_Object temp; | |
6ec8bbd2 | 1064 | if (PT >= ZV) |
55561c63 | 1065 | XSETFASTINT (temp, 0); |
850a8179 | 1066 | else |
ec1c14f6 | 1067 | XSETFASTINT (temp, FETCH_CHAR (PT_BYTE)); |
35692fe0 JB |
1068 | return temp; |
1069 | } | |
1070 | ||
a7ca3326 | 1071 | DEFUN ("preceding-char", Fprevious_char, Sprevious_char, 0, 0, 0, |
7ee72033 MB |
1072 | doc: /* Return the character preceding point, as a number. |
1073 | At the beginning of the buffer or accessible region, return 0. */) | |
5842a27b | 1074 | (void) |
35692fe0 JB |
1075 | { |
1076 | Lisp_Object temp; | |
6ec8bbd2 | 1077 | if (PT <= BEGV) |
55561c63 | 1078 | XSETFASTINT (temp, 0); |
4b4deea2 | 1079 | else if (!NILP (BVAR (current_buffer, enable_multibyte_characters))) |
fb8106e8 | 1080 | { |
d311d28c | 1081 | ptrdiff_t pos = PT_BYTE; |
fb8106e8 KH |
1082 | DEC_POS (pos); |
1083 | XSETFASTINT (temp, FETCH_CHAR (pos)); | |
1084 | } | |
35692fe0 | 1085 | else |
ec1c14f6 | 1086 | XSETFASTINT (temp, FETCH_BYTE (PT_BYTE - 1)); |
35692fe0 JB |
1087 | return temp; |
1088 | } | |
1089 | ||
a7ca3326 | 1090 | DEFUN ("bobp", Fbobp, Sbobp, 0, 0, 0, |
7ee72033 MB |
1091 | doc: /* Return t if point is at the beginning of the buffer. |
1092 | If the buffer is narrowed, this means the beginning of the narrowed part. */) | |
5842a27b | 1093 | (void) |
35692fe0 | 1094 | { |
6ec8bbd2 | 1095 | if (PT == BEGV) |
35692fe0 JB |
1096 | return Qt; |
1097 | return Qnil; | |
1098 | } | |
1099 | ||
a7ca3326 | 1100 | DEFUN ("eobp", Feobp, Seobp, 0, 0, 0, |
7ee72033 MB |
1101 | doc: /* Return t if point is at the end of the buffer. |
1102 | If the buffer is narrowed, this means the end of the narrowed part. */) | |
5842a27b | 1103 | (void) |
35692fe0 | 1104 | { |
6ec8bbd2 | 1105 | if (PT == ZV) |
35692fe0 JB |
1106 | return Qt; |
1107 | return Qnil; | |
1108 | } | |
1109 | ||
a7ca3326 | 1110 | DEFUN ("bolp", Fbolp, Sbolp, 0, 0, 0, |
7ee72033 | 1111 | doc: /* Return t if point is at the beginning of a line. */) |
5842a27b | 1112 | (void) |
35692fe0 | 1113 | { |
ec1c14f6 | 1114 | if (PT == BEGV || FETCH_BYTE (PT_BYTE - 1) == '\n') |
35692fe0 JB |
1115 | return Qt; |
1116 | return Qnil; | |
1117 | } | |
1118 | ||
a7ca3326 | 1119 | DEFUN ("eolp", Feolp, Seolp, 0, 0, 0, |
7ee72033 MB |
1120 | doc: /* Return t if point is at the end of a line. |
1121 | `End of a line' includes point being at the end of the buffer. */) | |
5842a27b | 1122 | (void) |
35692fe0 | 1123 | { |
ec1c14f6 | 1124 | if (PT == ZV || FETCH_BYTE (PT_BYTE) == '\n') |
35692fe0 JB |
1125 | return Qt; |
1126 | return Qnil; | |
1127 | } | |
1128 | ||
a7ca3326 | 1129 | DEFUN ("char-after", Fchar_after, Schar_after, 0, 1, 0, |
7ee72033 | 1130 | doc: /* Return character in current buffer at position POS. |
f555f8cf | 1131 | POS is an integer or a marker and defaults to point. |
7ee72033 | 1132 | If POS is out of range, the value is nil. */) |
5842a27b | 1133 | (Lisp_Object pos) |
35692fe0 | 1134 | { |
d311d28c | 1135 | register ptrdiff_t pos_byte; |
35692fe0 | 1136 | |
fa1d3816 | 1137 | if (NILP (pos)) |
39a4c932 RS |
1138 | { |
1139 | pos_byte = PT_BYTE; | |
3c52e568 | 1140 | XSETFASTINT (pos, PT); |
39a4c932 RS |
1141 | } |
1142 | ||
1143 | if (MARKERP (pos)) | |
85cac557 RS |
1144 | { |
1145 | pos_byte = marker_byte_position (pos); | |
1146 | if (pos_byte < BEGV_BYTE || pos_byte >= ZV_BYTE) | |
1147 | return Qnil; | |
1148 | } | |
fa1d3816 RS |
1149 | else |
1150 | { | |
b7826503 | 1151 | CHECK_NUMBER_COERCE_MARKER (pos); |
b98ef0dc | 1152 | if (XINT (pos) < BEGV || XINT (pos) >= ZV) |
85cac557 | 1153 | return Qnil; |
34a7a267 | 1154 | |
ec1c14f6 | 1155 | pos_byte = CHAR_TO_BYTE (XINT (pos)); |
fa1d3816 | 1156 | } |
35692fe0 | 1157 | |
ec1c14f6 | 1158 | return make_number (FETCH_CHAR (pos_byte)); |
35692fe0 | 1159 | } |
fb8106e8 | 1160 | |
fa1d3816 | 1161 | DEFUN ("char-before", Fchar_before, Schar_before, 0, 1, 0, |
7ee72033 | 1162 | doc: /* Return character in current buffer preceding position POS. |
f555f8cf | 1163 | POS is an integer or a marker and defaults to point. |
7ee72033 | 1164 | If POS is out of range, the value is nil. */) |
5842a27b | 1165 | (Lisp_Object pos) |
fb8106e8 KH |
1166 | { |
1167 | register Lisp_Object val; | |
d311d28c | 1168 | register ptrdiff_t pos_byte; |
fb8106e8 | 1169 | |
fa1d3816 | 1170 | if (NILP (pos)) |
39a4c932 RS |
1171 | { |
1172 | pos_byte = PT_BYTE; | |
3c52e568 | 1173 | XSETFASTINT (pos, PT); |
39a4c932 RS |
1174 | } |
1175 | ||
1176 | if (MARKERP (pos)) | |
85cac557 RS |
1177 | { |
1178 | pos_byte = marker_byte_position (pos); | |
1179 | ||
1180 | if (pos_byte <= BEGV_BYTE || pos_byte > ZV_BYTE) | |
1181 | return Qnil; | |
1182 | } | |
fa1d3816 RS |
1183 | else |
1184 | { | |
b7826503 | 1185 | CHECK_NUMBER_COERCE_MARKER (pos); |
fb8106e8 | 1186 | |
b98ef0dc | 1187 | if (XINT (pos) <= BEGV || XINT (pos) > ZV) |
85cac557 RS |
1188 | return Qnil; |
1189 | ||
ec1c14f6 | 1190 | pos_byte = CHAR_TO_BYTE (XINT (pos)); |
fa1d3816 | 1191 | } |
fb8106e8 | 1192 | |
4b4deea2 | 1193 | if (!NILP (BVAR (current_buffer, enable_multibyte_characters))) |
fb8106e8 | 1194 | { |
ec1c14f6 RS |
1195 | DEC_POS (pos_byte); |
1196 | XSETFASTINT (val, FETCH_CHAR (pos_byte)); | |
fb8106e8 KH |
1197 | } |
1198 | else | |
1199 | { | |
ec1c14f6 RS |
1200 | pos_byte--; |
1201 | XSETFASTINT (val, FETCH_BYTE (pos_byte)); | |
fb8106e8 KH |
1202 | } |
1203 | return val; | |
1204 | } | |
35692fe0 | 1205 | \f |
a7ca3326 | 1206 | DEFUN ("user-login-name", Fuser_login_name, Suser_login_name, 0, 1, 0, |
7ee72033 | 1207 | doc: /* Return the name under which the user logged in, as a string. |
a1f17501 | 1208 | This is based on the effective uid, not the real uid. |
412f1fab | 1209 | Also, if the environment variables LOGNAME or USER are set, |
a1f17501 PJ |
1210 | that determines the value of this function. |
1211 | ||
7b1c38a4 EZ |
1212 | If optional argument UID is an integer or a float, return the login name |
1213 | of the user with that uid, or nil if there is no such user. */) | |
5842a27b | 1214 | (Lisp_Object uid) |
35692fe0 | 1215 | { |
87485d6f | 1216 | struct passwd *pw; |
7b1c38a4 | 1217 | uid_t id; |
87485d6f | 1218 | |
f8a0e364 RS |
1219 | /* Set up the user name info if we didn't do it before. |
1220 | (That can happen if Emacs is dumpable | |
1221 | but you decide to run `temacs -l loadup' and not dump. */ | |
35b34f72 | 1222 | if (INTEGERP (Vuser_login_name)) |
f8a0e364 | 1223 | init_editfns (); |
87485d6f MW |
1224 | |
1225 | if (NILP (uid)) | |
35b34f72 | 1226 | return Vuser_login_name; |
87485d6f | 1227 | |
3f4eabd1 | 1228 | CONS_TO_INTEGER (uid, uid_t, id); |
b91834c3 | 1229 | BLOCK_INPUT; |
63c5d10b | 1230 | pw = getpwuid (id); |
b91834c3 | 1231 | UNBLOCK_INPUT; |
87485d6f | 1232 | return (pw ? build_string (pw->pw_name) : Qnil); |
35692fe0 JB |
1233 | } |
1234 | ||
1235 | DEFUN ("user-real-login-name", Fuser_real_login_name, Suser_real_login_name, | |
deb8e082 | 1236 | 0, 0, 0, |
7ee72033 | 1237 | doc: /* Return the name of the user's real uid, as a string. |
a1f17501 | 1238 | This ignores the environment variables LOGNAME and USER, so it differs from |
7ee72033 | 1239 | `user-login-name' when running under `su'. */) |
5842a27b | 1240 | (void) |
35692fe0 | 1241 | { |
f8a0e364 RS |
1242 | /* Set up the user name info if we didn't do it before. |
1243 | (That can happen if Emacs is dumpable | |
1244 | but you decide to run `temacs -l loadup' and not dump. */ | |
35b34f72 | 1245 | if (INTEGERP (Vuser_login_name)) |
f8a0e364 | 1246 | init_editfns (); |
35b34f72 | 1247 | return Vuser_real_login_name; |
35692fe0 JB |
1248 | } |
1249 | ||
1250 | DEFUN ("user-uid", Fuser_uid, Suser_uid, 0, 0, 0, | |
7ee72033 | 1251 | doc: /* Return the effective uid of Emacs. |
e00553bf | 1252 | Value is an integer or a float, depending on the value. */) |
5842a27b | 1253 | (void) |
35692fe0 | 1254 | { |
d311d28c | 1255 | uid_t euid = geteuid (); |
3aef3c0a | 1256 | return make_fixnum_or_float (euid); |
35692fe0 JB |
1257 | } |
1258 | ||
1259 | DEFUN ("user-real-uid", Fuser_real_uid, Suser_real_uid, 0, 0, 0, | |
7ee72033 | 1260 | doc: /* Return the real uid of Emacs. |
e00553bf | 1261 | Value is an integer or a float, depending on the value. */) |
5842a27b | 1262 | (void) |
35692fe0 | 1263 | { |
d311d28c | 1264 | uid_t uid = getuid (); |
3aef3c0a | 1265 | return make_fixnum_or_float (uid); |
35692fe0 JB |
1266 | } |
1267 | ||
c9ed721d | 1268 | DEFUN ("user-full-name", Fuser_full_name, Suser_full_name, 0, 1, 0, |
7ee72033 | 1269 | doc: /* Return the full name of the user logged in, as a string. |
a1f17501 PJ |
1270 | If the full name corresponding to Emacs's userid is not known, |
1271 | return "unknown". | |
1272 | ||
1273 | If optional argument UID is an integer or float, return the full name | |
1274 | of the user with that uid, or nil if there is no such user. | |
1275 | If UID is a string, return the full name of the user with that login | |
7ee72033 | 1276 | name, or nil if there is no such user. */) |
5842a27b | 1277 | (Lisp_Object uid) |
35692fe0 | 1278 | { |
c9ed721d | 1279 | struct passwd *pw; |
e7f8264d | 1280 | register char *p, *q; |
3415b0e9 | 1281 | Lisp_Object full; |
c9ed721d RS |
1282 | |
1283 | if (NILP (uid)) | |
34a7a267 | 1284 | return Vuser_full_name; |
3415b0e9 | 1285 | else if (NUMBERP (uid)) |
b91834c3 | 1286 | { |
3f4eabd1 PE |
1287 | uid_t u; |
1288 | CONS_TO_INTEGER (uid, uid_t, u); | |
b91834c3 | 1289 | BLOCK_INPUT; |
63c5d10b | 1290 | pw = getpwuid (u); |
b91834c3 YM |
1291 | UNBLOCK_INPUT; |
1292 | } | |
34a7a267 | 1293 | else if (STRINGP (uid)) |
b91834c3 YM |
1294 | { |
1295 | BLOCK_INPUT; | |
63c5d10b | 1296 | pw = getpwnam (SSDATA (uid)); |
b91834c3 YM |
1297 | UNBLOCK_INPUT; |
1298 | } | |
3415b0e9 RS |
1299 | else |
1300 | error ("Invalid UID specification"); | |
c9ed721d | 1301 | |
3415b0e9 | 1302 | if (!pw) |
3347526c | 1303 | return Qnil; |
34a7a267 | 1304 | |
e7f8264d | 1305 | p = USER_FULL_NAME; |
3415b0e9 | 1306 | /* Chop off everything after the first comma. */ |
e7f8264d | 1307 | q = strchr (p, ','); |
3415b0e9 | 1308 | full = make_string (p, q ? q - p : strlen (p)); |
34a7a267 | 1309 | |
3415b0e9 | 1310 | #ifdef AMPERSAND_FULL_NAME |
e7f8264d PE |
1311 | p = SSDATA (full); |
1312 | q = strchr (p, '&'); | |
3415b0e9 RS |
1313 | /* Substitute the login name for the &, upcasing the first character. */ |
1314 | if (q) | |
1315 | { | |
e7f8264d | 1316 | register char *r; |
3415b0e9 RS |
1317 | Lisp_Object login; |
1318 | ||
1319 | login = Fuser_login_name (make_number (pw->pw_uid)); | |
38182d90 | 1320 | r = alloca (strlen (p) + SCHARS (login) + 1); |
72af86bd | 1321 | memcpy (r, p, q - p); |
3415b0e9 | 1322 | r[q - p] = 0; |
42a5b22f | 1323 | strcat (r, SSDATA (login)); |
5da9919f | 1324 | r[q - p] = upcase ((unsigned char) r[q - p]); |
3415b0e9 RS |
1325 | strcat (r, q + 1); |
1326 | full = build_string (r); | |
1327 | } | |
1328 | #endif /* AMPERSAND_FULL_NAME */ | |
1329 | ||
1330 | return full; | |
35692fe0 JB |
1331 | } |
1332 | ||
a7ca3326 | 1333 | DEFUN ("system-name", Fsystem_name, Ssystem_name, 0, 0, 0, |
1a7e0117 | 1334 | doc: /* Return the host name of the machine you are running on, as a string. */) |
5842a27b | 1335 | (void) |
35692fe0 JB |
1336 | { |
1337 | return Vsystem_name; | |
1338 | } | |
1339 | ||
8ea90aa3 | 1340 | const char * |
971de7fb | 1341 | get_system_name (void) |
ac988277 | 1342 | { |
3d976a9a | 1343 | if (STRINGP (Vsystem_name)) |
51b59d79 | 1344 | return SSDATA (Vsystem_name); |
3d976a9a RS |
1345 | else |
1346 | return ""; | |
ac988277 KH |
1347 | } |
1348 | ||
7fd233b3 | 1349 | DEFUN ("emacs-pid", Femacs_pid, Semacs_pid, 0, 0, 0, |
d311d28c | 1350 | doc: /* Return the process ID of Emacs, as a number. */) |
5842a27b | 1351 | (void) |
7fd233b3 | 1352 | { |
d311d28c PE |
1353 | pid_t pid = getpid (); |
1354 | return make_fixnum_or_float (pid); | |
7fd233b3 RS |
1355 | } |
1356 | ||
b8d9bd41 PE |
1357 | \f |
1358 | ||
1359 | #ifndef TIME_T_MIN | |
1360 | # define TIME_T_MIN TYPE_MINIMUM (time_t) | |
1361 | #endif | |
1362 | #ifndef TIME_T_MAX | |
1363 | # define TIME_T_MAX TYPE_MAXIMUM (time_t) | |
1364 | #endif | |
1365 | ||
1366 | /* Report that a time value is out of range for Emacs. */ | |
d35af63c | 1367 | void |
b8d9bd41 PE |
1368 | time_overflow (void) |
1369 | { | |
1370 | error ("Specified time is not representable"); | |
1371 | } | |
1372 | ||
d35af63c | 1373 | /* Return the upper part of the time T (everything but the bottom 16 bits). */ |
b8d9bd41 PE |
1374 | static EMACS_INT |
1375 | hi_time (time_t t) | |
1376 | { | |
1377 | time_t hi = t >> 16; | |
313c1e54 PE |
1378 | |
1379 | /* Check for overflow, helping the compiler for common cases where | |
1380 | no runtime check is needed, and taking care not to convert | |
1381 | negative numbers to unsigned before comparing them. */ | |
1382 | if (! ((! TYPE_SIGNED (time_t) | |
1383 | || MOST_NEGATIVE_FIXNUM <= TIME_T_MIN >> 16 | |
1384 | || MOST_NEGATIVE_FIXNUM <= hi) | |
1385 | && (TIME_T_MAX >> 16 <= MOST_POSITIVE_FIXNUM | |
1386 | || hi <= MOST_POSITIVE_FIXNUM))) | |
b8d9bd41 | 1387 | time_overflow (); |
313c1e54 | 1388 | |
b8d9bd41 PE |
1389 | return hi; |
1390 | } | |
1391 | ||
1392 | /* Return the bottom 16 bits of the time T. */ | |
d311d28c | 1393 | static int |
b8d9bd41 PE |
1394 | lo_time (time_t t) |
1395 | { | |
1396 | return t & ((1 << 16) - 1); | |
1397 | } | |
1398 | ||
a7ca3326 | 1399 | DEFUN ("current-time", Fcurrent_time, Scurrent_time, 0, 0, 0, |
7ee72033 | 1400 | doc: /* Return the current time, as the number of seconds since 1970-01-01 00:00:00. |
d35af63c PE |
1401 | The time is returned as a list of integers (HIGH LOW USEC PSEC). |
1402 | HIGH has the most significant bits of the seconds, while LOW has the | |
1403 | least significant 16 bits. USEC and PSEC are the microsecond and | |
1404 | picosecond counts. */) | |
5842a27b | 1405 | (void) |
d940e0e4 | 1406 | { |
e9a9ae03 | 1407 | return make_lisp_time (current_emacs_time ()); |
d940e0e4 | 1408 | } |
4211ee7d | 1409 | |
a7ca3326 | 1410 | DEFUN ("get-internal-run-time", Fget_internal_run_time, Sget_internal_run_time, |
4211ee7d EZ |
1411 | 0, 0, 0, |
1412 | doc: /* Return the current run time used by Emacs. | |
d35af63c PE |
1413 | The time is returned as a list (HIGH LOW USEC PSEC), using the same |
1414 | style as (current-time). | |
4211ee7d | 1415 | |
9671c13a | 1416 | On systems that can't determine the run time, `get-internal-run-time' |
d35af63c | 1417 | does the same thing as `current-time'. */) |
5842a27b | 1418 | (void) |
4211ee7d EZ |
1419 | { |
1420 | #ifdef HAVE_GETRUSAGE | |
1421 | struct rusage usage; | |
b8d9bd41 PE |
1422 | time_t secs; |
1423 | int usecs; | |
4211ee7d EZ |
1424 | |
1425 | if (getrusage (RUSAGE_SELF, &usage) < 0) | |
1426 | /* This shouldn't happen. What action is appropriate? */ | |
8a0ff744 | 1427 | xsignal0 (Qerror); |
4211ee7d EZ |
1428 | |
1429 | /* Sum up user time and system time. */ | |
1430 | secs = usage.ru_utime.tv_sec + usage.ru_stime.tv_sec; | |
1431 | usecs = usage.ru_utime.tv_usec + usage.ru_stime.tv_usec; | |
1432 | if (usecs >= 1000000) | |
1433 | { | |
1434 | usecs -= 1000000; | |
1435 | secs++; | |
1436 | } | |
e9a9ae03 | 1437 | return make_lisp_time (make_emacs_time (secs, usecs * 1000)); |
c433c134 | 1438 | #else /* ! HAVE_GETRUSAGE */ |
43db14bb | 1439 | #ifdef WINDOWSNT |
c433c134 JR |
1440 | return w32_get_internal_run_time (); |
1441 | #else /* ! WINDOWSNT */ | |
4211ee7d | 1442 | return Fcurrent_time (); |
c433c134 JR |
1443 | #endif /* WINDOWSNT */ |
1444 | #endif /* HAVE_GETRUSAGE */ | |
4211ee7d | 1445 | } |
d940e0e4 JB |
1446 | \f |
1447 | ||
d35af63c PE |
1448 | /* Make a Lisp list that represents the time T with fraction TAIL. */ |
1449 | static Lisp_Object | |
1450 | make_time_tail (time_t t, Lisp_Object tail) | |
1451 | { | |
1452 | return Fcons (make_number (hi_time (t)), | |
1453 | Fcons (make_number (lo_time (t)), tail)); | |
1454 | } | |
1455 | ||
1456 | /* Make a Lisp list that represents the system time T. */ | |
1457 | static Lisp_Object | |
8be6f318 PE |
1458 | make_time (time_t t) |
1459 | { | |
d35af63c PE |
1460 | return make_time_tail (t, Qnil); |
1461 | } | |
1462 | ||
1463 | /* Make a Lisp list that represents the Emacs time T. T may be an | |
1464 | invalid time, with a slightly negative tv_nsec value such as | |
1465 | UNKNOWN_MODTIME_NSECS; in that case, the Lisp list contains a | |
1466 | correspondingly negative picosecond count. */ | |
1467 | Lisp_Object | |
1468 | make_lisp_time (EMACS_TIME t) | |
1469 | { | |
1470 | int ns = EMACS_NSECS (t); | |
1471 | return make_time_tail (EMACS_SECS (t), | |
1472 | list2 (make_number (ns / 1000), | |
1473 | make_number (ns % 1000 * 1000))); | |
8be6f318 PE |
1474 | } |
1475 | ||
1476 | /* Decode a Lisp list SPECIFIED_TIME that represents a time. | |
d35af63c | 1477 | Set *PHIGH, *PLOW, *PUSEC, *PPSEC to its parts; do not check their values. |
8be6f318 | 1478 | Return nonzero if successful. */ |
d35af63c PE |
1479 | static int |
1480 | disassemble_lisp_time (Lisp_Object specified_time, Lisp_Object *phigh, | |
1481 | Lisp_Object *plow, Lisp_Object *pusec, | |
1482 | Lisp_Object *ppsec) | |
1483 | { | |
1484 | if (CONSP (specified_time)) | |
1485 | { | |
1486 | Lisp_Object low = XCDR (specified_time); | |
1487 | Lisp_Object usec = make_number (0); | |
1488 | Lisp_Object psec = make_number (0); | |
1489 | if (CONSP (low)) | |
1490 | { | |
1491 | Lisp_Object low_tail = XCDR (low); | |
1492 | low = XCAR (low); | |
1493 | if (CONSP (low_tail)) | |
1494 | { | |
1495 | usec = XCAR (low_tail); | |
1496 | low_tail = XCDR (low_tail); | |
1497 | if (CONSP (low_tail)) | |
1498 | psec = XCAR (low_tail); | |
1499 | } | |
1500 | else if (!NILP (low_tail)) | |
1501 | usec = low_tail; | |
1502 | } | |
1503 | ||
1504 | *phigh = XCAR (specified_time); | |
1505 | *plow = low; | |
1506 | *pusec = usec; | |
1507 | *ppsec = psec; | |
1508 | return 1; | |
1509 | } | |
1510 | ||
1511 | return 0; | |
1512 | } | |
1513 | ||
1514 | /* From the time components HIGH, LOW, USEC and PSEC taken from a Lisp | |
31571fd7 PE |
1515 | list, generate the corresponding time value. |
1516 | ||
1517 | If RESULT is not null, store into *RESULT the converted time; | |
1518 | this can fail if the converted time does not fit into EMACS_TIME. | |
1519 | If *DRESULT is not null, store into *DRESULT the number of | |
1520 | seconds since the start of the POSIX Epoch. | |
1521 | ||
1522 | Return nonzero if successful. */ | |
5c5718b6 | 1523 | int |
d35af63c | 1524 | decode_time_components (Lisp_Object high, Lisp_Object low, Lisp_Object usec, |
31571fd7 PE |
1525 | Lisp_Object psec, |
1526 | EMACS_TIME *result, double *dresult) | |
e3120ab5 | 1527 | { |
d35af63c | 1528 | EMACS_INT hi, lo, us, ps; |
d35af63c PE |
1529 | if (! (INTEGERP (high) && INTEGERP (low) |
1530 | && INTEGERP (usec) && INTEGERP (psec))) | |
1531 | return 0; | |
1532 | hi = XINT (high); | |
1533 | lo = XINT (low); | |
1534 | us = XINT (usec); | |
1535 | ps = XINT (psec); | |
1536 | ||
1537 | /* Normalize out-of-range lower-order components by carrying | |
1538 | each overflow into the next higher-order component. */ | |
1539 | us += ps / 1000000 - (ps % 1000000 < 0); | |
1540 | lo += us / 1000000 - (us % 1000000 < 0); | |
1541 | hi += lo >> 16; | |
1542 | ps = ps % 1000000 + 1000000 * (ps % 1000000 < 0); | |
1543 | us = us % 1000000 + 1000000 * (us % 1000000 < 0); | |
1544 | lo &= (1 << 16) - 1; | |
1545 | ||
31571fd7 PE |
1546 | if (result) |
1547 | { | |
1548 | if ((TYPE_SIGNED (time_t) ? TIME_T_MIN >> 16 <= hi : 0 <= hi) | |
1549 | && hi <= TIME_T_MAX >> 16) | |
1550 | { | |
1551 | /* Return the greatest representable time that is not greater | |
1552 | than the requested time. */ | |
1553 | time_t sec = hi; | |
e9a9ae03 | 1554 | *result = make_emacs_time ((sec << 16) + lo, us * 1000 + ps / 1000); |
31571fd7 PE |
1555 | } |
1556 | else | |
1557 | { | |
1558 | /* Overflow in the highest-order component. */ | |
1559 | return 0; | |
1560 | } | |
1561 | } | |
1562 | ||
1563 | if (dresult) | |
1564 | *dresult = (us * 1e6 + ps) / 1e12 + lo + hi * 65536.0; | |
d35af63c | 1565 | |
d35af63c PE |
1566 | return 1; |
1567 | } | |
1568 | ||
1569 | /* Decode a Lisp list SPECIFIED_TIME that represents a time. | |
1570 | If SPECIFIED_TIME is nil, use the current time. | |
31571fd7 PE |
1571 | |
1572 | Round the time down to the nearest EMACS_TIME value. | |
d35af63c PE |
1573 | Return seconds since the Epoch. |
1574 | Signal an error if unsuccessful. */ | |
1575 | EMACS_TIME | |
31571fd7 | 1576 | lisp_time_argument (Lisp_Object specified_time) |
d35af63c PE |
1577 | { |
1578 | EMACS_TIME t; | |
e3120ab5 | 1579 | if (NILP (specified_time)) |
e9a9ae03 | 1580 | t = current_emacs_time (); |
d35af63c | 1581 | else |
34a7a267 | 1582 | { |
d35af63c PE |
1583 | Lisp_Object high, low, usec, psec; |
1584 | if (! (disassemble_lisp_time (specified_time, &high, &low, &usec, &psec) | |
31571fd7 | 1585 | && decode_time_components (high, low, usec, psec, &t, 0))) |
d35af63c | 1586 | error ("Invalid time specification"); |
34a7a267 | 1587 | } |
d35af63c PE |
1588 | return t; |
1589 | } | |
1590 | ||
1591 | /* Like lisp_time_argument, except decode only the seconds part, | |
31571fd7 PE |
1592 | do not allow out-of-range time stamps, do not check the subseconds part, |
1593 | and always round down. */ | |
d35af63c PE |
1594 | static time_t |
1595 | lisp_seconds_argument (Lisp_Object specified_time) | |
1596 | { | |
1597 | if (NILP (specified_time)) | |
1598 | return time (NULL); | |
e3120ab5 JB |
1599 | else |
1600 | { | |
d35af63c PE |
1601 | Lisp_Object high, low, usec, psec; |
1602 | EMACS_TIME t; | |
1603 | if (! (disassemble_lisp_time (specified_time, &high, &low, &usec, &psec) | |
1604 | && decode_time_components (high, low, make_number (0), | |
1605 | make_number (0), &t, 0))) | |
1606 | error ("Invalid time specification"); | |
1607 | return EMACS_SECS (t); | |
e3120ab5 JB |
1608 | } |
1609 | } | |
1610 | ||
34a7a267 | 1611 | DEFUN ("float-time", Ffloat_time, Sfloat_time, 0, 1, 0, |
7ee72033 | 1612 | doc: /* Return the current time, as a float number of seconds since the epoch. |
412f1fab | 1613 | If SPECIFIED-TIME is given, it is the time to convert to float |
5668fbb8 | 1614 | instead of the current time. The argument should have the form |
d35af63c PE |
1615 | (HIGH LOW) or (HIGH LOW USEC) or (HIGH LOW USEC PSEC). Thus, |
1616 | you can use times from `current-time' and from `file-attributes'. | |
1617 | SPECIFIED-TIME can also have the form (HIGH . LOW), but this is | |
1618 | considered obsolete. | |
a1f17501 PJ |
1619 | |
1620 | WARNING: Since the result is floating point, it may not be exact. | |
d427a9fa EZ |
1621 | If precise time stamps are required, use either `current-time', |
1622 | or (if you need time as a string) `format-time-string'. */) | |
5842a27b | 1623 | (Lisp_Object specified_time) |
34a7a267 | 1624 | { |
31571fd7 PE |
1625 | double t; |
1626 | if (NILP (specified_time)) | |
1627 | { | |
e9a9ae03 | 1628 | EMACS_TIME now = current_emacs_time (); |
31571fd7 PE |
1629 | t = EMACS_SECS (now) + EMACS_NSECS (now) / 1e9; |
1630 | } | |
1631 | else | |
1632 | { | |
1633 | Lisp_Object high, low, usec, psec; | |
1634 | if (! (disassemble_lisp_time (specified_time, &high, &low, &usec, &psec) | |
1635 | && decode_time_components (high, low, usec, psec, 0, &t))) | |
1636 | error ("Invalid time specification"); | |
1637 | } | |
1638 | return make_float (t); | |
34a7a267 SS |
1639 | } |
1640 | ||
70ebbe5f PE |
1641 | /* Write information into buffer S of size MAXSIZE, according to the |
1642 | FORMAT of length FORMAT_LEN, using time information taken from *TP. | |
68c45bf0 | 1643 | Default to Universal Time if UT is nonzero, local time otherwise. |
a4180391 | 1644 | Use NS as the number of nanoseconds in the %N directive. |
70ebbe5f PE |
1645 | Return the number of bytes written, not including the terminating |
1646 | '\0'. If S is NULL, nothing will be written anywhere; so to | |
1647 | determine how many bytes would be written, use NULL for S and | |
1648 | ((size_t) -1) for MAXSIZE. | |
1649 | ||
16c3e636 PE |
1650 | This function behaves like nstrftime, except it allows null |
1651 | bytes in FORMAT and it does not support nanoseconds. */ | |
70ebbe5f | 1652 | static size_t |
a4180391 PE |
1653 | emacs_nmemftime (char *s, size_t maxsize, const char *format, |
1654 | size_t format_len, const struct tm *tp, int ut, int ns) | |
70ebbe5f PE |
1655 | { |
1656 | size_t total = 0; | |
1657 | ||
be09e6e6 PE |
1658 | /* Loop through all the null-terminated strings in the format |
1659 | argument. Normally there's just one null-terminated string, but | |
1660 | there can be arbitrarily many, concatenated together, if the | |
16c3e636 | 1661 | format contains '\0' bytes. nstrftime stops at the first |
be09e6e6 | 1662 | '\0' byte so we must invoke it separately for each such string. */ |
70ebbe5f PE |
1663 | for (;;) |
1664 | { | |
1665 | size_t len; | |
1666 | size_t result; | |
1667 | ||
1668 | if (s) | |
1669 | s[0] = '\1'; | |
1670 | ||
a4180391 | 1671 | result = nstrftime (s, maxsize, format, tp, ut, ns); |
70ebbe5f PE |
1672 | |
1673 | if (s) | |
1674 | { | |
1675 | if (result == 0 && s[0] != '\0') | |
1676 | return 0; | |
1677 | s += result + 1; | |
1678 | } | |
1679 | ||
1680 | maxsize -= result + 1; | |
1681 | total += result; | |
1682 | len = strlen (format); | |
1683 | if (len == format_len) | |
1684 | return total; | |
1685 | total++; | |
1686 | format += len + 1; | |
1687 | format_len -= len + 1; | |
1688 | } | |
1689 | } | |
1690 | ||
3efcc98a | 1691 | DEFUN ("format-time-string", Fformat_time_string, Sformat_time_string, 1, 3, 0, |
7ee72033 | 1692 | doc: /* Use FORMAT-STRING to format the time TIME, or now if omitted. |
d35af63c | 1693 | TIME is specified as (HIGH LOW USEC PSEC), as returned by |
5668fbb8 LT |
1694 | `current-time' or `file-attributes'. The obsolete form (HIGH . LOW) |
1695 | is also still accepted. | |
a1f17501 PJ |
1696 | The third, optional, argument UNIVERSAL, if non-nil, means describe TIME |
1697 | as Universal Time; nil means describe TIME in the local time zone. | |
1698 | The value is a copy of FORMAT-STRING, but with certain constructs replaced | |
1699 | by text that describes the specified date and time in TIME: | |
1700 | ||
1701 | %Y is the year, %y within the century, %C the century. | |
1702 | %G is the year corresponding to the ISO week, %g within the century. | |
1703 | %m is the numeric month. | |
1704 | %b and %h are the locale's abbreviated month name, %B the full name. | |
1705 | %d is the day of the month, zero-padded, %e is blank-padded. | |
1706 | %u is the numeric day of week from 1 (Monday) to 7, %w from 0 (Sunday) to 6. | |
1707 | %a is the locale's abbreviated name of the day of week, %A the full name. | |
1708 | %U is the week number starting on Sunday, %W starting on Monday, | |
1709 | %V according to ISO 8601. | |
1710 | %j is the day of the year. | |
1711 | ||
1712 | %H is the hour on a 24-hour clock, %I is on a 12-hour clock, %k is like %H | |
1713 | only blank-padded, %l is like %I blank-padded. | |
1714 | %p is the locale's equivalent of either AM or PM. | |
1715 | %M is the minute. | |
1716 | %S is the second. | |
a4180391 | 1717 | %N is the nanosecond, %6N the microsecond, %3N the millisecond, etc. |
a1f17501 PJ |
1718 | %Z is the time zone name, %z is the numeric form. |
1719 | %s is the number of seconds since 1970-01-01 00:00:00 +0000. | |
1720 | ||
1721 | %c is the locale's date and time format. | |
1722 | %x is the locale's "preferred" date format. | |
1723 | %D is like "%m/%d/%y". | |
1724 | ||
1725 | %R is like "%H:%M", %T is like "%H:%M:%S", %r is like "%I:%M:%S %p". | |
1726 | %X is the locale's "preferred" time format. | |
1727 | ||
1728 | Finally, %n is a newline, %t is a tab, %% is a literal %. | |
1729 | ||
1730 | Certain flags and modifiers are available with some format controls. | |
1731 | The flags are `_', `-', `^' and `#'. For certain characters X, | |
1732 | %_X is like %X, but padded with blanks; %-X is like %X, | |
a67a233b MR |
1733 | but without padding. %^X is like %X, but with all textual |
1734 | characters up-cased; %#X is like %X, but with letter-case of | |
a1f17501 PJ |
1735 | all textual characters reversed. |
1736 | %NX (where N stands for an integer) is like %X, | |
1737 | but takes up at least N (a number) positions. | |
1738 | The modifiers are `E' and `O'. For certain characters X, | |
1739 | %EX is a locale's alternative version of %X; | |
1740 | %OX is like %X, but uses the locale's number symbols. | |
1741 | ||
75bfc667 JL |
1742 | For example, to produce full ISO 8601 format, use "%Y-%m-%dT%T%z". |
1743 | ||
1744 | usage: (format-time-string FORMAT-STRING &optional TIME UNIVERSAL) */) | |
545b49b4 | 1745 | (Lisp_Object format_string, Lisp_Object timeval, Lisp_Object universal) |
a82d387c | 1746 | { |
31571fd7 | 1747 | EMACS_TIME t = lisp_time_argument (timeval); |
7ed806a7 | 1748 | struct tm tm; |
7da0b018 PE |
1749 | |
1750 | CHECK_STRING (format_string); | |
1751 | format_string = code_convert_string_norecord (format_string, | |
1752 | Vlocale_coding_system, 1); | |
1753 | return format_time_string (SSDATA (format_string), SBYTES (format_string), | |
d35af63c | 1754 | t, ! NILP (universal), &tm); |
7da0b018 PE |
1755 | } |
1756 | ||
1757 | static Lisp_Object | |
1758 | format_time_string (char const *format, ptrdiff_t formatlen, | |
d35af63c | 1759 | EMACS_TIME t, int ut, struct tm *tmp) |
7da0b018 | 1760 | { |
7ed806a7 PE |
1761 | char buffer[4000]; |
1762 | char *buf = buffer; | |
243e0530 | 1763 | ptrdiff_t size = sizeof buffer; |
7ed806a7 PE |
1764 | size_t len; |
1765 | Lisp_Object bufstring; | |
d35af63c | 1766 | int ns = EMACS_NSECS (t); |
177ea5f1 | 1767 | struct tm *tm; |
7ed806a7 | 1768 | USE_SAFE_ALLOCA; |
a82d387c | 1769 | |
a82d387c RS |
1770 | while (1) |
1771 | { | |
e9a9ae03 | 1772 | time_t *taddr = emacs_secs_addr (&t); |
7ed806a7 PE |
1773 | BLOCK_INPUT; |
1774 | ||
1775 | synchronize_system_time_locale (); | |
1776 | ||
e9a9ae03 | 1777 | tm = ut ? gmtime (taddr) : localtime (taddr); |
7ed806a7 PE |
1778 | if (! tm) |
1779 | { | |
1780 | UNBLOCK_INPUT; | |
1781 | time_overflow (); | |
1782 | } | |
1783 | *tmp = *tm; | |
b48382a0 | 1784 | |
bfbcc5ee | 1785 | buf[0] = '\1'; |
7ed806a7 PE |
1786 | len = emacs_nmemftime (buf, size, format, formatlen, tm, ut, ns); |
1787 | if ((0 < len && len < size) || (len == 0 && buf[0] == '\0')) | |
1788 | break; | |
b48382a0 | 1789 | |
7ed806a7 PE |
1790 | /* Buffer was too small, so make it bigger and try again. */ |
1791 | len = emacs_nmemftime (NULL, SIZE_MAX, format, formatlen, tm, ut, ns); | |
bcda42c8 | 1792 | UNBLOCK_INPUT; |
7ed806a7 | 1793 | if (STRING_BYTES_BOUND <= len) |
da64016e | 1794 | string_overflow (); |
7ed806a7 | 1795 | size = len + 1; |
98c6f1e3 | 1796 | buf = SAFE_ALLOCA (size); |
a82d387c | 1797 | } |
7ed806a7 PE |
1798 | |
1799 | UNBLOCK_INPUT; | |
1800 | bufstring = make_unibyte_string (buf, len); | |
1801 | SAFE_FREE (); | |
1802 | return code_convert_string_norecord (bufstring, Vlocale_coding_system, 0); | |
a82d387c RS |
1803 | } |
1804 | ||
4691c06d | 1805 | DEFUN ("decode-time", Fdecode_time, Sdecode_time, 0, 1, 0, |
7ee72033 | 1806 | doc: /* Decode a time value as (SEC MINUTE HOUR DAY MONTH YEAR DOW DST ZONE). |
5668fbb8 | 1807 | The optional SPECIFIED-TIME should be a list of (HIGH LOW . IGNORED), |
9671c13a | 1808 | as from `current-time' and `file-attributes', or nil to use the |
5668fbb8 LT |
1809 | current time. The obsolete form (HIGH . LOW) is also still accepted. |
1810 | The list has the following nine members: SEC is an integer between 0 | |
1811 | and 60; SEC is 60 for a leap second, which only some operating systems | |
1812 | support. MINUTE is an integer between 0 and 59. HOUR is an integer | |
1813 | between 0 and 23. DAY is an integer between 1 and 31. MONTH is an | |
1814 | integer between 1 and 12. YEAR is an integer indicating the | |
1815 | four-digit year. DOW is the day of week, an integer between 0 and 6, | |
f1767e2b | 1816 | where 0 is Sunday. DST is t if daylight saving time is in effect, |
5668fbb8 LT |
1817 | otherwise nil. ZONE is an integer indicating the number of seconds |
1818 | east of Greenwich. (Note that Common Lisp has different meanings for | |
1819 | DOW and ZONE.) */) | |
5842a27b | 1820 | (Lisp_Object specified_time) |
4691c06d | 1821 | { |
d35af63c | 1822 | time_t time_spec = lisp_seconds_argument (specified_time); |
3c887943 | 1823 | struct tm save_tm; |
4691c06d RS |
1824 | struct tm *decoded_time; |
1825 | Lisp_Object list_args[9]; | |
34a7a267 | 1826 | |
bcda42c8 | 1827 | BLOCK_INPUT; |
4691c06d | 1828 | decoded_time = localtime (&time_spec); |
7ed806a7 PE |
1829 | if (decoded_time) |
1830 | save_tm = *decoded_time; | |
bcda42c8 | 1831 | UNBLOCK_INPUT; |
b8d9bd41 | 1832 | if (! (decoded_time |
7ed806a7 PE |
1833 | && MOST_NEGATIVE_FIXNUM - TM_YEAR_BASE <= save_tm.tm_year |
1834 | && save_tm.tm_year <= MOST_POSITIVE_FIXNUM - TM_YEAR_BASE)) | |
fe31d94c | 1835 | time_overflow (); |
7ed806a7 PE |
1836 | XSETFASTINT (list_args[0], save_tm.tm_sec); |
1837 | XSETFASTINT (list_args[1], save_tm.tm_min); | |
1838 | XSETFASTINT (list_args[2], save_tm.tm_hour); | |
1839 | XSETFASTINT (list_args[3], save_tm.tm_mday); | |
1840 | XSETFASTINT (list_args[4], save_tm.tm_mon + 1); | |
71c3f28f EZ |
1841 | /* On 64-bit machines an int is narrower than EMACS_INT, thus the |
1842 | cast below avoids overflow in int arithmetics. */ | |
7ed806a7 PE |
1843 | XSETINT (list_args[5], TM_YEAR_BASE + (EMACS_INT) save_tm.tm_year); |
1844 | XSETFASTINT (list_args[6], save_tm.tm_wday); | |
1845 | list_args[7] = save_tm.tm_isdst ? Qt : Qnil; | |
3c887943 | 1846 | |
bcda42c8 | 1847 | BLOCK_INPUT; |
3c887943 KH |
1848 | decoded_time = gmtime (&time_spec); |
1849 | if (decoded_time == 0) | |
1850 | list_args[8] = Qnil; | |
1851 | else | |
94751666 | 1852 | XSETINT (list_args[8], tm_diff (&save_tm, decoded_time)); |
7ed806a7 | 1853 | UNBLOCK_INPUT; |
4691c06d RS |
1854 | return Flist (9, list_args); |
1855 | } | |
1856 | ||
b8d9bd41 PE |
1857 | /* Return OBJ - OFFSET, checking that OBJ is a valid fixnum and that |
1858 | the result is representable as an int. Assume OFFSET is small and | |
1859 | nonnegative. */ | |
1860 | static int | |
1861 | check_tm_member (Lisp_Object obj, int offset) | |
1862 | { | |
1863 | EMACS_INT n; | |
1864 | CHECK_NUMBER (obj); | |
1865 | n = XINT (obj); | |
1866 | if (! (INT_MIN + offset <= n && n - offset <= INT_MAX)) | |
1867 | time_overflow (); | |
1868 | return n - offset; | |
1869 | } | |
1870 | ||
6ee9061c | 1871 | DEFUN ("encode-time", Fencode_time, Sencode_time, 6, MANY, 0, |
7ee72033 | 1872 | doc: /* Convert SECOND, MINUTE, HOUR, DAY, MONTH, YEAR and ZONE to internal time. |
a1f17501 PJ |
1873 | This is the reverse operation of `decode-time', which see. |
1874 | ZONE defaults to the current time zone rule. This can | |
1875 | be a string or t (as from `set-time-zone-rule'), or it can be a list | |
b57c2708 | 1876 | \(as from `current-time-zone') or an integer (as from `decode-time') |
9c279ddf | 1877 | applied without consideration for daylight saving time. |
a1f17501 PJ |
1878 | |
1879 | You can pass more than 7 arguments; then the first six arguments | |
1880 | are used as SECOND through YEAR, and the *last* argument is used as ZONE. | |
1881 | The intervening arguments are ignored. | |
1882 | This feature lets (apply 'encode-time (decode-time ...)) work. | |
1883 | ||
412f1fab | 1884 | Out-of-range values for SECOND, MINUTE, HOUR, DAY, or MONTH are allowed; |
a1f17501 PJ |
1885 | for example, a DAY of 0 means the day preceding the given month. |
1886 | Year numbers less than 100 are treated just like other year numbers. | |
4bfbe194 MB |
1887 | If you want them to stand for years in this century, you must do that yourself. |
1888 | ||
f555f8cf KH |
1889 | Years before 1970 are not guaranteed to work. On some systems, |
1890 | year values as low as 1901 do work. | |
1891 | ||
4bfbe194 | 1892 | usage: (encode-time SECOND MINUTE HOUR DAY MONTH YEAR &optional ZONE) */) |
f66c7cf8 | 1893 | (ptrdiff_t nargs, Lisp_Object *args) |
cce7b8a0 | 1894 | { |
545b49b4 | 1895 | time_t value; |
c59b5089 | 1896 | struct tm tm; |
60653898 | 1897 | Lisp_Object zone = (nargs > 6 ? args[nargs - 1] : Qnil); |
6ee9061c | 1898 | |
b8d9bd41 PE |
1899 | tm.tm_sec = check_tm_member (args[0], 0); |
1900 | tm.tm_min = check_tm_member (args[1], 0); | |
1901 | tm.tm_hour = check_tm_member (args[2], 0); | |
1902 | tm.tm_mday = check_tm_member (args[3], 0); | |
1903 | tm.tm_mon = check_tm_member (args[4], 1); | |
1904 | tm.tm_year = check_tm_member (args[5], TM_YEAR_BASE); | |
c59b5089 PE |
1905 | tm.tm_isdst = -1; |
1906 | ||
1907 | if (CONSP (zone)) | |
7d7bbefd | 1908 | zone = XCAR (zone); |
1b8fa736 | 1909 | if (NILP (zone)) |
bcda42c8 YM |
1910 | { |
1911 | BLOCK_INPUT; | |
545b49b4 | 1912 | value = mktime (&tm); |
bcda42c8 YM |
1913 | UNBLOCK_INPUT; |
1914 | } | |
c59b5089 | 1915 | else |
1b8fa736 | 1916 | { |
c59b5089 | 1917 | char tzbuf[100]; |
8ea90aa3 | 1918 | const char *tzstring; |
c59b5089 | 1919 | char **oldenv = environ, **newenv; |
34a7a267 | 1920 | |
2e34157c | 1921 | if (EQ (zone, Qt)) |
085e9fcb EN |
1922 | tzstring = "UTC0"; |
1923 | else if (STRINGP (zone)) | |
51b59d79 | 1924 | tzstring = SSDATA (zone); |
c59b5089 | 1925 | else if (INTEGERP (zone)) |
1b8fa736 | 1926 | { |
d311d28c PE |
1927 | EMACS_INT abszone = eabs (XINT (zone)); |
1928 | EMACS_INT zone_hr = abszone / (60*60); | |
1929 | int zone_min = (abszone/60) % 60; | |
1930 | int zone_sec = abszone % 60; | |
1931 | sprintf (tzbuf, "XXX%s%"pI"d:%02d:%02d", "-" + (XINT (zone) < 0), | |
1932 | zone_hr, zone_min, zone_sec); | |
c59b5089 | 1933 | tzstring = tzbuf; |
1b8fa736 | 1934 | } |
c59b5089 PE |
1935 | else |
1936 | error ("Invalid time zone specification"); | |
1937 | ||
7ed806a7 PE |
1938 | BLOCK_INPUT; |
1939 | ||
34a7a267 | 1940 | /* Set TZ before calling mktime; merely adjusting mktime's returned |
c59b5089 PE |
1941 | value doesn't suffice, since that would mishandle leap seconds. */ |
1942 | set_time_zone_rule (tzstring); | |
1943 | ||
545b49b4 | 1944 | value = mktime (&tm); |
c59b5089 PE |
1945 | |
1946 | /* Restore TZ to previous value. */ | |
1947 | newenv = environ; | |
1948 | environ = oldenv; | |
c59b5089 PE |
1949 | #ifdef LOCALTIME_CACHE |
1950 | tzset (); | |
1951 | #endif | |
7ed806a7 PE |
1952 | UNBLOCK_INPUT; |
1953 | ||
1954 | xfree (newenv); | |
1b8fa736 | 1955 | } |
1b8fa736 | 1956 | |
545b49b4 | 1957 | if (value == (time_t) -1) |
fe31d94c | 1958 | time_overflow (); |
c59b5089 | 1959 | |
545b49b4 | 1960 | return make_time (value); |
cce7b8a0 RS |
1961 | } |
1962 | ||
2148f2b4 | 1963 | DEFUN ("current-time-string", Fcurrent_time_string, Scurrent_time_string, 0, 1, 0, |
244b023e | 1964 | doc: /* Return the current local time, as a human-readable string. |
a1f17501 | 1965 | Programs can use this function to decode a time, |
d65b4235 PE |
1966 | since the number of columns in each field is fixed |
1967 | if the year is in the range 1000-9999. | |
a1f17501 PJ |
1968 | The format is `Sun Sep 16 01:03:52 1973'. |
1969 | However, see also the functions `decode-time' and `format-time-string' | |
1970 | which provide a much more powerful and general facility. | |
1971 | ||
5668fbb8 LT |
1972 | If SPECIFIED-TIME is given, it is a time to format instead of the |
1973 | current time. The argument should have the form (HIGH LOW . IGNORED). | |
1974 | Thus, you can use times obtained from `current-time' and from | |
1975 | `file-attributes'. SPECIFIED-TIME can also have the form (HIGH . LOW), | |
1976 | but this is considered obsolete. */) | |
5842a27b | 1977 | (Lisp_Object specified_time) |
2148f2b4 | 1978 | { |
d35af63c | 1979 | time_t value = lisp_seconds_argument (specified_time); |
aac18aa4 | 1980 | struct tm *tm; |
ab0fa4e4 PE |
1981 | char buf[sizeof "Mon Apr 30 12:49:17 " + INT_STRLEN_BOUND (int) + 1]; |
1982 | int len IF_LINT (= 0); | |
2148f2b4 | 1983 | |
ab0fa4e4 PE |
1984 | /* Convert to a string in ctime format, except without the trailing |
1985 | newline, and without the 4-digit year limit. Don't use asctime | |
1986 | or ctime, as they might dump core if the year is outside the | |
1987 | range -999 .. 9999. */ | |
bcda42c8 | 1988 | BLOCK_INPUT; |
aac18aa4 | 1989 | tm = localtime (&value); |
ab0fa4e4 | 1990 | if (tm) |
7ed806a7 | 1991 | { |
ab0fa4e4 PE |
1992 | static char const wday_name[][4] = |
1993 | { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" }; | |
1994 | static char const mon_name[][4] = | |
1995 | { "Jan", "Feb", "Mar", "Apr", "May", "Jun", | |
1996 | "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" }; | |
1997 | printmax_t year_base = TM_YEAR_BASE; | |
1998 | ||
1999 | len = sprintf (buf, "%s %s%3d %02d:%02d:%02d %"pMd, | |
2000 | wday_name[tm->tm_wday], mon_name[tm->tm_mon], tm->tm_mday, | |
2001 | tm->tm_hour, tm->tm_min, tm->tm_sec, | |
2002 | tm->tm_year + year_base); | |
7ed806a7 | 2003 | } |
bcda42c8 | 2004 | UNBLOCK_INPUT; |
ab0fa4e4 | 2005 | if (! tm) |
fe31d94c | 2006 | time_overflow (); |
35692fe0 | 2007 | |
ab0fa4e4 | 2008 | return make_unibyte_string (buf, len); |
35692fe0 | 2009 | } |
c2662aea | 2010 | |
94751666 PE |
2011 | /* Yield A - B, measured in seconds. |
2012 | This function is copied from the GNU C Library. */ | |
2013 | static int | |
971de7fb | 2014 | tm_diff (struct tm *a, struct tm *b) |
e3120ab5 | 2015 | { |
94751666 PE |
2016 | /* Compute intervening leap days correctly even if year is negative. |
2017 | Take care to avoid int overflow in leap day calculations, | |
2018 | but it's OK to assume that A and B are close to each other. */ | |
2019 | int a4 = (a->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (a->tm_year & 3); | |
2020 | int b4 = (b->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (b->tm_year & 3); | |
2021 | int a100 = a4 / 25 - (a4 % 25 < 0); | |
2022 | int b100 = b4 / 25 - (b4 % 25 < 0); | |
2023 | int a400 = a100 >> 2; | |
2024 | int b400 = b100 >> 2; | |
2025 | int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400); | |
2026 | int years = a->tm_year - b->tm_year; | |
2027 | int days = (365 * years + intervening_leap_days | |
2028 | + (a->tm_yday - b->tm_yday)); | |
2029 | return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour)) | |
2030 | + (a->tm_min - b->tm_min)) | |
8e718b4e | 2031 | + (a->tm_sec - b->tm_sec)); |
e3120ab5 JB |
2032 | } |
2033 | ||
2034 | DEFUN ("current-time-zone", Fcurrent_time_zone, Scurrent_time_zone, 0, 1, 0, | |
7ee72033 | 2035 | doc: /* Return the offset and name for the local time zone. |
a1f17501 PJ |
2036 | This returns a list of the form (OFFSET NAME). |
2037 | OFFSET is an integer number of seconds ahead of UTC (east of Greenwich). | |
2038 | A negative value means west of Greenwich. | |
2039 | NAME is a string giving the name of the time zone. | |
412f1fab | 2040 | If SPECIFIED-TIME is given, the time zone offset is determined from it |
5668fbb8 LT |
2041 | instead of using the current time. The argument should have the form |
2042 | (HIGH LOW . IGNORED). Thus, you can use times obtained from | |
2043 | `current-time' and from `file-attributes'. SPECIFIED-TIME can also | |
2044 | have the form (HIGH . LOW), but this is considered obsolete. | |
a1f17501 PJ |
2045 | |
2046 | Some operating systems cannot provide all this information to Emacs; | |
2047 | in this case, `current-time-zone' returns a list containing nil for | |
7ee72033 | 2048 | the data it can't find. */) |
5842a27b | 2049 | (Lisp_Object specified_time) |
c2662aea | 2050 | { |
d35af63c | 2051 | EMACS_TIME value; |
7ed806a7 | 2052 | int offset; |
e3120ab5 | 2053 | struct tm *t; |
7da0b018 | 2054 | struct tm localtm; |
7da0b018 PE |
2055 | Lisp_Object zone_offset, zone_name; |
2056 | ||
2057 | zone_offset = Qnil; | |
e9a9ae03 | 2058 | value = make_emacs_time (lisp_seconds_argument (specified_time), 0); |
d35af63c | 2059 | zone_name = format_time_string ("%Z", sizeof "%Z" - 1, value, 0, &localtm); |
7da0b018 | 2060 | BLOCK_INPUT; |
e9a9ae03 | 2061 | t = gmtime (emacs_secs_addr (&value)); |
7ed806a7 PE |
2062 | if (t) |
2063 | offset = tm_diff (&localtm, t); | |
7da0b018 | 2064 | UNBLOCK_INPUT; |
bcda42c8 YM |
2065 | |
2066 | if (t) | |
e3120ab5 | 2067 | { |
7da0b018 PE |
2068 | zone_offset = make_number (offset); |
2069 | if (SCHARS (zone_name) == 0) | |
e3120ab5 JB |
2070 | { |
2071 | /* No local time zone name is available; use "+-NNNN" instead. */ | |
33ef5c64 PE |
2072 | int m = offset / 60; |
2073 | int am = offset < 0 ? - m : m; | |
7da0b018 | 2074 | char buf[sizeof "+00" + INT_STRLEN_BOUND (int)]; |
98c6f1e3 | 2075 | zone_name = make_formatted_string (buf, "%c%02d%02d", |
a8290ec3 DA |
2076 | (offset < 0 ? '-' : '+'), |
2077 | am / 60, am % 60); | |
e3120ab5 | 2078 | } |
e3120ab5 | 2079 | } |
7da0b018 PE |
2080 | |
2081 | return list2 (zone_offset, zone_name); | |
c2662aea JB |
2082 | } |
2083 | ||
260e2e2a KH |
2084 | /* This holds the value of `environ' produced by the previous |
2085 | call to Fset_time_zone_rule, or 0 if Fset_time_zone_rule | |
2086 | has never been called. */ | |
2087 | static char **environbuf; | |
2088 | ||
a03fc5a6 JR |
2089 | /* This holds the startup value of the TZ environment variable so it |
2090 | can be restored if the user calls set-time-zone-rule with a nil | |
2091 | argument. */ | |
2092 | static char *initial_tz; | |
2093 | ||
143cb9a9 | 2094 | DEFUN ("set-time-zone-rule", Fset_time_zone_rule, Sset_time_zone_rule, 1, 1, 0, |
7ee72033 | 2095 | doc: /* Set the local time zone using TZ, a string specifying a time zone rule. |
a1f17501 | 2096 | If TZ is nil, use implementation-defined default time zone information. |
37e11a63 CY |
2097 | If TZ is t, use Universal Time. |
2098 | ||
2099 | Instead of calling this function, you typically want (setenv "TZ" TZ). | |
2100 | That changes both the environment of the Emacs process and the | |
2101 | variable `process-environment', whereas `set-time-zone-rule' affects | |
2102 | only the former. */) | |
5842a27b | 2103 | (Lisp_Object tz) |
143cb9a9 | 2104 | { |
8ea90aa3 | 2105 | const char *tzstring; |
7ed806a7 PE |
2106 | char **old_environbuf; |
2107 | ||
2108 | if (! (NILP (tz) || EQ (tz, Qt))) | |
2109 | CHECK_STRING (tz); | |
2110 | ||
2111 | BLOCK_INPUT; | |
143cb9a9 | 2112 | |
a03fc5a6 | 2113 | /* When called for the first time, save the original TZ. */ |
7ed806a7 PE |
2114 | old_environbuf = environbuf; |
2115 | if (!old_environbuf) | |
a03fc5a6 JR |
2116 | initial_tz = (char *) getenv ("TZ"); |
2117 | ||
143cb9a9 | 2118 | if (NILP (tz)) |
a03fc5a6 | 2119 | tzstring = initial_tz; |
2e34157c | 2120 | else if (EQ (tz, Qt)) |
085e9fcb | 2121 | tzstring = "UTC0"; |
143cb9a9 | 2122 | else |
7ed806a7 | 2123 | tzstring = SSDATA (tz); |
143cb9a9 | 2124 | |
c59b5089 | 2125 | set_time_zone_rule (tzstring); |
c59b5089 PE |
2126 | environbuf = environ; |
2127 | ||
7ed806a7 PE |
2128 | UNBLOCK_INPUT; |
2129 | ||
2130 | xfree (old_environbuf); | |
c59b5089 PE |
2131 | return Qnil; |
2132 | } | |
2133 | ||
e0bf9faf PE |
2134 | #ifdef LOCALTIME_CACHE |
2135 | ||
2136 | /* These two values are known to load tz files in buggy implementations, | |
2137 | i.e. Solaris 1 executables running under either Solaris 1 or Solaris 2. | |
1155c453 | 2138 | Their values shouldn't matter in non-buggy implementations. |
34a7a267 | 2139 | We don't use string literals for these strings, |
1155c453 RS |
2140 | since if a string in the environment is in readonly |
2141 | storage, it runs afoul of bugs in SVR4 and Solaris 2.3. | |
2142 | See Sun bugs 1113095 and 1114114, ``Timezone routines | |
2143 | improperly modify environment''. */ | |
2144 | ||
e0bf9faf PE |
2145 | static char set_time_zone_rule_tz1[] = "TZ=GMT+0"; |
2146 | static char set_time_zone_rule_tz2[] = "TZ=GMT+1"; | |
2147 | ||
2148 | #endif | |
1155c453 | 2149 | |
c59b5089 PE |
2150 | /* Set the local time zone rule to TZSTRING. |
2151 | This allocates memory into `environ', which it is the caller's | |
2152 | responsibility to free. */ | |
acb7cc89 | 2153 | |
a92ae0ce | 2154 | void |
a8fe7202 | 2155 | set_time_zone_rule (const char *tzstring) |
c59b5089 | 2156 | { |
c9f8d652 | 2157 | ptrdiff_t envptrs; |
c59b5089 PE |
2158 | char **from, **to, **newenv; |
2159 | ||
aafe5147 | 2160 | /* Make the ENVIRON vector longer with room for TZSTRING. */ |
143cb9a9 RS |
2161 | for (from = environ; *from; from++) |
2162 | continue; | |
2163 | envptrs = from - environ + 2; | |
38182d90 | 2164 | newenv = to = xmalloc (envptrs * sizeof *newenv |
23f86fce | 2165 | + (tzstring ? strlen (tzstring) + 4 : 0)); |
aafe5147 RS |
2166 | |
2167 | /* Add TZSTRING to the end of environ, as a value for TZ. */ | |
143cb9a9 RS |
2168 | if (tzstring) |
2169 | { | |
2170 | char *t = (char *) (to + envptrs); | |
2171 | strcpy (t, "TZ="); | |
2172 | strcat (t, tzstring); | |
2173 | *to++ = t; | |
2174 | } | |
2175 | ||
aafe5147 RS |
2176 | /* Copy the old environ vector elements into NEWENV, |
2177 | but don't copy the TZ variable. | |
2178 | So we have only one definition of TZ, which came from TZSTRING. */ | |
143cb9a9 RS |
2179 | for (from = environ; *from; from++) |
2180 | if (strncmp (*from, "TZ=", 3) != 0) | |
2181 | *to++ = *from; | |
2182 | *to = 0; | |
2183 | ||
2184 | environ = newenv; | |
143cb9a9 | 2185 | |
aafe5147 RS |
2186 | /* If we do have a TZSTRING, NEWENV points to the vector slot where |
2187 | the TZ variable is stored. If we do not have a TZSTRING, | |
2188 | TO points to the vector slot which has the terminating null. */ | |
2189 | ||
143cb9a9 | 2190 | #ifdef LOCALTIME_CACHE |
aafe5147 RS |
2191 | { |
2192 | /* In SunOS 4.1.3_U1 and 4.1.4, if TZ has a value like | |
2193 | "US/Pacific" that loads a tz file, then changes to a value like | |
2194 | "XXX0" that does not load a tz file, and then changes back to | |
2195 | its original value, the last change is (incorrectly) ignored. | |
2196 | Also, if TZ changes twice in succession to values that do | |
2197 | not load a tz file, tzset can dump core (see Sun bug#1225179). | |
2198 | The following code works around these bugs. */ | |
2199 | ||
aafe5147 RS |
2200 | if (tzstring) |
2201 | { | |
2202 | /* Temporarily set TZ to a value that loads a tz file | |
2203 | and that differs from tzstring. */ | |
2204 | char *tz = *newenv; | |
1155c453 RS |
2205 | *newenv = (strcmp (tzstring, set_time_zone_rule_tz1 + 3) == 0 |
2206 | ? set_time_zone_rule_tz2 : set_time_zone_rule_tz1); | |
aafe5147 RS |
2207 | tzset (); |
2208 | *newenv = tz; | |
2209 | } | |
2210 | else | |
2211 | { | |
2212 | /* The implied tzstring is unknown, so temporarily set TZ to | |
2213 | two different values that each load a tz file. */ | |
1155c453 | 2214 | *to = set_time_zone_rule_tz1; |
aafe5147 RS |
2215 | to[1] = 0; |
2216 | tzset (); | |
1155c453 | 2217 | *to = set_time_zone_rule_tz2; |
aafe5147 RS |
2218 | tzset (); |
2219 | *to = 0; | |
2220 | } | |
2221 | ||
2222 | /* Now TZ has the desired value, and tzset can be invoked safely. */ | |
2223 | } | |
2224 | ||
143cb9a9 RS |
2225 | tzset (); |
2226 | #endif | |
143cb9a9 | 2227 | } |
35692fe0 | 2228 | \f |
fb8106e8 KH |
2229 | /* Insert NARGS Lisp objects in the array ARGS by calling INSERT_FUNC |
2230 | (if a type of object is Lisp_Int) or INSERT_FROM_STRING_FUNC (if a | |
2231 | type of object is Lisp_String). INHERIT is passed to | |
2232 | INSERT_FROM_STRING_FUNC as the last argument. */ | |
2233 | ||
acb7cc89 | 2234 | static void |
9628fed7 | 2235 | general_insert_function (void (*insert_func) |
d311d28c | 2236 | (const char *, ptrdiff_t), |
9628fed7 | 2237 | void (*insert_from_string_func) |
d311d28c PE |
2238 | (Lisp_Object, ptrdiff_t, ptrdiff_t, |
2239 | ptrdiff_t, ptrdiff_t, int), | |
f66c7cf8 | 2240 | int inherit, ptrdiff_t nargs, Lisp_Object *args) |
fb8106e8 | 2241 | { |
f66c7cf8 | 2242 | ptrdiff_t argnum; |
fb8106e8 KH |
2243 | register Lisp_Object val; |
2244 | ||
2245 | for (argnum = 0; argnum < nargs; argnum++) | |
2246 | { | |
2247 | val = args[argnum]; | |
1b9c91ed | 2248 | if (CHARACTERP (val)) |
fb8106e8 | 2249 | { |
13bdea59 | 2250 | int c = XFASTINT (val); |
d5c2c403 | 2251 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
fb8106e8 KH |
2252 | int len; |
2253 | ||
4b4deea2 | 2254 | if (!NILP (BVAR (current_buffer, enable_multibyte_characters))) |
13bdea59 | 2255 | len = CHAR_STRING (c, str); |
fb8106e8 | 2256 | else |
13c148b8 | 2257 | { |
abbd3d23 | 2258 | str[0] = ASCII_CHAR_P (c) ? c : multibyte_char_to_unibyte (c); |
13c148b8 KH |
2259 | len = 1; |
2260 | } | |
b68864e5 | 2261 | (*insert_func) ((char *) str, len); |
fb8106e8 KH |
2262 | } |
2263 | else if (STRINGP (val)) | |
2264 | { | |
1f24f4fd | 2265 | (*insert_from_string_func) (val, 0, 0, |
d5db4077 KR |
2266 | SCHARS (val), |
2267 | SBYTES (val), | |
1f24f4fd | 2268 | inherit); |
fb8106e8 KH |
2269 | } |
2270 | else | |
b7f34213 | 2271 | wrong_type_argument (Qchar_or_string_p, val); |
fb8106e8 KH |
2272 | } |
2273 | } | |
2274 | ||
35692fe0 | 2275 | void |
971de7fb | 2276 | insert1 (Lisp_Object arg) |
35692fe0 JB |
2277 | { |
2278 | Finsert (1, &arg); | |
2279 | } | |
2280 | ||
52b14ac0 JB |
2281 | |
2282 | /* Callers passing one argument to Finsert need not gcpro the | |
2283 | argument "array", since the only element of the array will | |
2284 | not be used after calling insert or insert_from_string, so | |
2285 | we don't care if it gets trashed. */ | |
2286 | ||
a7ca3326 | 2287 | DEFUN ("insert", Finsert, Sinsert, 0, MANY, 0, |
7ee72033 | 2288 | doc: /* Insert the arguments, either strings or characters, at point. |
a1f17501 PJ |
2289 | Point and before-insertion markers move forward to end up |
2290 | after the inserted text. | |
2291 | Any other markers at the point of insertion remain before the text. | |
2292 | ||
2293 | If the current buffer is multibyte, unibyte strings are converted | |
72bb55c6 | 2294 | to multibyte for insertion (see `string-make-multibyte'). |
a1f17501 | 2295 | If the current buffer is unibyte, multibyte strings are converted |
72bb55c6 KS |
2296 | to unibyte for insertion (see `string-make-unibyte'). |
2297 | ||
2298 | When operating on binary data, it may be necessary to preserve the | |
2299 | original bytes of a unibyte string when inserting it into a multibyte | |
2300 | buffer; to accomplish this, apply `string-as-multibyte' to the string | |
2301 | and insert the result. | |
4bfbe194 MB |
2302 | |
2303 | usage: (insert &rest ARGS) */) | |
f66c7cf8 | 2304 | (ptrdiff_t nargs, Lisp_Object *args) |
35692fe0 | 2305 | { |
fb8106e8 | 2306 | general_insert_function (insert, insert_from_string, 0, nargs, args); |
be91036a RS |
2307 | return Qnil; |
2308 | } | |
2309 | ||
2310 | DEFUN ("insert-and-inherit", Finsert_and_inherit, Sinsert_and_inherit, | |
2311 | 0, MANY, 0, | |
7ee72033 | 2312 | doc: /* Insert the arguments at point, inheriting properties from adjoining text. |
a1f17501 PJ |
2313 | Point and before-insertion markers move forward to end up |
2314 | after the inserted text. | |
2315 | Any other markers at the point of insertion remain before the text. | |
2316 | ||
2317 | If the current buffer is multibyte, unibyte strings are converted | |
2318 | to multibyte for insertion (see `unibyte-char-to-multibyte'). | |
2319 | If the current buffer is unibyte, multibyte strings are converted | |
4bfbe194 MB |
2320 | to unibyte for insertion. |
2321 | ||
2322 | usage: (insert-and-inherit &rest ARGS) */) | |
f66c7cf8 | 2323 | (ptrdiff_t nargs, Lisp_Object *args) |
be91036a | 2324 | { |
fb8106e8 KH |
2325 | general_insert_function (insert_and_inherit, insert_from_string, 1, |
2326 | nargs, args); | |
35692fe0 JB |
2327 | return Qnil; |
2328 | } | |
2329 | ||
2330 | DEFUN ("insert-before-markers", Finsert_before_markers, Sinsert_before_markers, 0, MANY, 0, | |
7ee72033 | 2331 | doc: /* Insert strings or characters at point, relocating markers after the text. |
a1f17501 PJ |
2332 | Point and markers move forward to end up after the inserted text. |
2333 | ||
2334 | If the current buffer is multibyte, unibyte strings are converted | |
2335 | to multibyte for insertion (see `unibyte-char-to-multibyte'). | |
2336 | If the current buffer is unibyte, multibyte strings are converted | |
4bfbe194 MB |
2337 | to unibyte for insertion. |
2338 | ||
2339 | usage: (insert-before-markers &rest ARGS) */) | |
f66c7cf8 | 2340 | (ptrdiff_t nargs, Lisp_Object *args) |
35692fe0 | 2341 | { |
fb8106e8 KH |
2342 | general_insert_function (insert_before_markers, |
2343 | insert_from_string_before_markers, 0, | |
2344 | nargs, args); | |
be91036a RS |
2345 | return Qnil; |
2346 | } | |
2347 | ||
a0d76c27 EN |
2348 | DEFUN ("insert-before-markers-and-inherit", Finsert_and_inherit_before_markers, |
2349 | Sinsert_and_inherit_before_markers, 0, MANY, 0, | |
7ee72033 | 2350 | doc: /* Insert text at point, relocating markers and inheriting properties. |
a1f17501 PJ |
2351 | Point and markers move forward to end up after the inserted text. |
2352 | ||
2353 | If the current buffer is multibyte, unibyte strings are converted | |
2354 | to multibyte for insertion (see `unibyte-char-to-multibyte'). | |
2355 | If the current buffer is unibyte, multibyte strings are converted | |
4bfbe194 MB |
2356 | to unibyte for insertion. |
2357 | ||
2358 | usage: (insert-before-markers-and-inherit &rest ARGS) */) | |
f66c7cf8 | 2359 | (ptrdiff_t nargs, Lisp_Object *args) |
be91036a | 2360 | { |
fb8106e8 KH |
2361 | general_insert_function (insert_before_markers_and_inherit, |
2362 | insert_from_string_before_markers, 1, | |
2363 | nargs, args); | |
35692fe0 JB |
2364 | return Qnil; |
2365 | } | |
2366 | \f | |
ddfc8813 | 2367 | DEFUN ("insert-char", Finsert_char, Sinsert_char, 1, 3, |
9ea10cc3 | 2368 | "(list (read-char-by-name \"Insert character (Unicode name or hex): \")\ |
ddfc8813 RK |
2369 | (prefix-numeric-value current-prefix-arg)\ |
2370 | t))", | |
9671c13a | 2371 | doc: /* Insert COUNT copies of CHARACTER. |
9ea10cc3 CY |
2372 | Interactively, prompt for CHARACTER. You can specify CHARACTER in one |
2373 | of these ways: | |
2374 | ||
2375 | - As its Unicode character name, e.g. \"LATIN SMALL LETTER A\". | |
2376 | Completion is available; if you type a substring of the name | |
2377 | preceded by an asterisk `*', Emacs shows all names which include | |
2378 | that substring, not necessarily at the beginning of the name. | |
2379 | ||
2380 | - As a hexadecimal code point, e.g. 263A. Note that code points in | |
2381 | Emacs are equivalent to Unicode up to 10FFFF (which is the limit of | |
2382 | the Unicode code space). | |
2383 | ||
2384 | - As a code point with a radix specified with #, e.g. #o21430 | |
2385 | (octal), #x2318 (hex), or #10r8984 (decimal). | |
2386 | ||
2387 | If called interactively, COUNT is given by the prefix argument. If | |
2388 | omitted or nil, it defaults to 1. | |
2389 | ||
2390 | Inserting the character(s) relocates point and before-insertion | |
2391 | markers in the same ways as the function `insert'. | |
2392 | ||
2393 | The optional third argument INHERIT, if non-nil, says to inherit text | |
2394 | properties from adjoining text, if those properties are sticky. If | |
2395 | called interactively, INHERIT is t. */) | |
5842a27b | 2396 | (Lisp_Object character, Lisp_Object count, Lisp_Object inherit) |
35692fe0 | 2397 | { |
21d890a4 | 2398 | int i, stringlen; |
d311d28c | 2399 | register ptrdiff_t n; |
13bdea59 | 2400 | int c, len; |
d5c2c403 | 2401 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
21d890a4 | 2402 | char string[4000]; |
35692fe0 | 2403 | |
13bdea59 | 2404 | CHECK_CHARACTER (character); |
ddfc8813 RK |
2405 | if (NILP (count)) |
2406 | XSETFASTINT (count, 1); | |
b7826503 | 2407 | CHECK_NUMBER (count); |
13bdea59 | 2408 | c = XFASTINT (character); |
35692fe0 | 2409 | |
4b4deea2 | 2410 | if (!NILP (BVAR (current_buffer, enable_multibyte_characters))) |
13bdea59 | 2411 | len = CHAR_STRING (c, str); |
fb8106e8 | 2412 | else |
13bdea59 | 2413 | str[0] = c, len = 1; |
2e6813b0 PE |
2414 | if (XINT (count) <= 0) |
2415 | return Qnil; | |
d1f3d2af | 2416 | if (BUF_BYTES_MAX / len < XINT (count)) |
99561444 | 2417 | buffer_overflow (); |
fb8106e8 | 2418 | n = XINT (count) * len; |
21d890a4 | 2419 | stringlen = min (n, sizeof string - sizeof string % len); |
545b49b4 | 2420 | for (i = 0; i < stringlen; i++) |
fb8106e8 | 2421 | string[i] = str[i % len]; |
21d890a4 | 2422 | while (n > stringlen) |
35692fe0 | 2423 | { |
54e42e2d | 2424 | QUIT; |
e2eeabbb | 2425 | if (!NILP (inherit)) |
545b49b4 | 2426 | insert_and_inherit (string, stringlen); |
e2eeabbb | 2427 | else |
545b49b4 PE |
2428 | insert (string, stringlen); |
2429 | n -= stringlen; | |
35692fe0 | 2430 | } |
21d890a4 PE |
2431 | if (!NILP (inherit)) |
2432 | insert_and_inherit (string, n); | |
2433 | else | |
2434 | insert (string, n); | |
35692fe0 JB |
2435 | return Qnil; |
2436 | } | |
2437 | ||
48ef988f KH |
2438 | DEFUN ("insert-byte", Finsert_byte, Sinsert_byte, 2, 3, 0, |
2439 | doc: /* Insert COUNT (second arg) copies of BYTE (first arg). | |
2440 | Both arguments are required. | |
2441 | BYTE is a number of the range 0..255. | |
2442 | ||
2443 | If BYTE is 128..255 and the current buffer is multibyte, the | |
2444 | corresponding eight-bit character is inserted. | |
2445 | ||
2446 | Point, and before-insertion markers, are relocated as in the function `insert'. | |
2447 | The optional third arg INHERIT, if non-nil, says to inherit text properties | |
2448 | from adjoining text, if those properties are sticky. */) | |
5842a27b | 2449 | (Lisp_Object byte, Lisp_Object count, Lisp_Object inherit) |
48ef988f KH |
2450 | { |
2451 | CHECK_NUMBER (byte); | |
2452 | if (XINT (byte) < 0 || XINT (byte) > 255) | |
2453 | args_out_of_range_3 (byte, make_number (0), make_number (255)); | |
2454 | if (XINT (byte) >= 128 | |
4b4deea2 | 2455 | && ! NILP (BVAR (current_buffer, enable_multibyte_characters))) |
48ef988f | 2456 | XSETFASTINT (byte, BYTE8_TO_CHAR (XINT (byte))); |
ed398b0a | 2457 | return Finsert_char (byte, count, inherit); |
48ef988f KH |
2458 | } |
2459 | ||
35692fe0 | 2460 | \f |
ffd56f97 JB |
2461 | /* Making strings from buffer contents. */ |
2462 | ||
2463 | /* Return a Lisp_String containing the text of the current buffer from | |
74d6d8c5 | 2464 | START to END. If text properties are in use and the current buffer |
eb8c3be9 | 2465 | has properties in the range specified, the resulting string will also |
260e2e2a | 2466 | have them, if PROPS is nonzero. |
ffd56f97 JB |
2467 | |
2468 | We don't want to use plain old make_string here, because it calls | |
2469 | make_uninit_string, which can cause the buffer arena to be | |
2470 | compacted. make_string has no way of knowing that the data has | |
2471 | been moved, and thus copies the wrong data into the string. This | |
2472 | doesn't effect most of the other users of make_string, so it should | |
2473 | be left as is. But we should use this function when conjuring | |
2474 | buffer substrings. */ | |
74d6d8c5 | 2475 | |
ffd56f97 | 2476 | Lisp_Object |
d311d28c | 2477 | make_buffer_string (ptrdiff_t start, ptrdiff_t end, int props) |
ffd56f97 | 2478 | { |
d311d28c PE |
2479 | ptrdiff_t start_byte = CHAR_TO_BYTE (start); |
2480 | ptrdiff_t end_byte = CHAR_TO_BYTE (end); | |
ffd56f97 | 2481 | |
88441c8e RS |
2482 | return make_buffer_string_both (start, start_byte, end, end_byte, props); |
2483 | } | |
2484 | ||
2485 | /* Return a Lisp_String containing the text of the current buffer from | |
2486 | START / START_BYTE to END / END_BYTE. | |
2487 | ||
2488 | If text properties are in use and the current buffer | |
2489 | has properties in the range specified, the resulting string will also | |
2490 | have them, if PROPS is nonzero. | |
2491 | ||
2492 | We don't want to use plain old make_string here, because it calls | |
2493 | make_uninit_string, which can cause the buffer arena to be | |
2494 | compacted. make_string has no way of knowing that the data has | |
2495 | been moved, and thus copies the wrong data into the string. This | |
2496 | doesn't effect most of the other users of make_string, so it should | |
2497 | be left as is. But we should use this function when conjuring | |
2498 | buffer substrings. */ | |
2499 | ||
2500 | Lisp_Object | |
d311d28c PE |
2501 | make_buffer_string_both (ptrdiff_t start, ptrdiff_t start_byte, |
2502 | ptrdiff_t end, ptrdiff_t end_byte, int props) | |
88441c8e RS |
2503 | { |
2504 | Lisp_Object result, tem, tem1; | |
2505 | ||
ffd56f97 JB |
2506 | if (start < GPT && GPT < end) |
2507 | move_gap (start); | |
2508 | ||
4b4deea2 | 2509 | if (! NILP (BVAR (current_buffer, enable_multibyte_characters))) |
5f75e666 RS |
2510 | result = make_uninit_multibyte_string (end - start, end_byte - start_byte); |
2511 | else | |
2512 | result = make_uninit_string (end - start); | |
72af86bd | 2513 | memcpy (SDATA (result), BYTE_POS_ADDR (start_byte), end_byte - start_byte); |
ffd56f97 | 2514 | |
260e2e2a | 2515 | /* If desired, update and copy the text properties. */ |
260e2e2a KH |
2516 | if (props) |
2517 | { | |
2518 | update_buffer_properties (start, end); | |
2519 | ||
2520 | tem = Fnext_property_change (make_number (start), Qnil, make_number (end)); | |
2521 | tem1 = Ftext_properties_at (make_number (start), Qnil); | |
2522 | ||
2523 | if (XINT (tem) != end || !NILP (tem1)) | |
ec1c14f6 RS |
2524 | copy_intervals_to_string (result, current_buffer, start, |
2525 | end - start); | |
260e2e2a | 2526 | } |
74d6d8c5 | 2527 | |
ffd56f97 JB |
2528 | return result; |
2529 | } | |
35692fe0 | 2530 | |
260e2e2a KH |
2531 | /* Call Vbuffer_access_fontify_functions for the range START ... END |
2532 | in the current buffer, if necessary. */ | |
2533 | ||
2534 | static void | |
d311d28c | 2535 | update_buffer_properties (ptrdiff_t start, ptrdiff_t end) |
260e2e2a | 2536 | { |
260e2e2a KH |
2537 | /* If this buffer has some access functions, |
2538 | call them, specifying the range of the buffer being accessed. */ | |
2539 | if (!NILP (Vbuffer_access_fontify_functions)) | |
2540 | { | |
2541 | Lisp_Object args[3]; | |
2542 | Lisp_Object tem; | |
2543 | ||
2544 | args[0] = Qbuffer_access_fontify_functions; | |
2545 | XSETINT (args[1], start); | |
2546 | XSETINT (args[2], end); | |
2547 | ||
2548 | /* But don't call them if we can tell that the work | |
2549 | has already been done. */ | |
2550 | if (!NILP (Vbuffer_access_fontified_property)) | |
2551 | { | |
2552 | tem = Ftext_property_any (args[1], args[2], | |
2553 | Vbuffer_access_fontified_property, | |
2554 | Qnil, Qnil); | |
2555 | if (! NILP (tem)) | |
ced1d19a | 2556 | Frun_hook_with_args (3, args); |
260e2e2a KH |
2557 | } |
2558 | else | |
ced1d19a | 2559 | Frun_hook_with_args (3, args); |
260e2e2a | 2560 | } |
260e2e2a KH |
2561 | } |
2562 | ||
a7ca3326 | 2563 | DEFUN ("buffer-substring", Fbuffer_substring, Sbuffer_substring, 2, 2, 0, |
7ee72033 | 2564 | doc: /* Return the contents of part of the current buffer as a string. |
a1f17501 PJ |
2565 | The two arguments START and END are character positions; |
2566 | they can be in either order. | |
2567 | The string returned is multibyte if the buffer is multibyte. | |
2568 | ||
2569 | This function copies the text properties of that part of the buffer | |
2570 | into the result string; if you don't want the text properties, | |
7ee72033 | 2571 | use `buffer-substring-no-properties' instead. */) |
5842a27b | 2572 | (Lisp_Object start, Lisp_Object end) |
35692fe0 | 2573 | { |
d311d28c | 2574 | register ptrdiff_t b, e; |
35692fe0 | 2575 | |
2591ec64 EN |
2576 | validate_region (&start, &end); |
2577 | b = XINT (start); | |
2578 | e = XINT (end); | |
35692fe0 | 2579 | |
2591ec64 | 2580 | return make_buffer_string (b, e, 1); |
260e2e2a KH |
2581 | } |
2582 | ||
2583 | DEFUN ("buffer-substring-no-properties", Fbuffer_substring_no_properties, | |
2584 | Sbuffer_substring_no_properties, 2, 2, 0, | |
7ee72033 | 2585 | doc: /* Return the characters of part of the buffer, without the text properties. |
a1f17501 | 2586 | The two arguments START and END are character positions; |
7ee72033 | 2587 | they can be in either order. */) |
5842a27b | 2588 | (Lisp_Object start, Lisp_Object end) |
260e2e2a | 2589 | { |
d311d28c | 2590 | register ptrdiff_t b, e; |
260e2e2a | 2591 | |
2591ec64 EN |
2592 | validate_region (&start, &end); |
2593 | b = XINT (start); | |
2594 | e = XINT (end); | |
260e2e2a | 2595 | |
2591ec64 | 2596 | return make_buffer_string (b, e, 0); |
35692fe0 JB |
2597 | } |
2598 | ||
a7ca3326 | 2599 | DEFUN ("buffer-string", Fbuffer_string, Sbuffer_string, 0, 0, 0, |
7ee72033 | 2600 | doc: /* Return the contents of the current buffer as a string. |
a1f17501 | 2601 | If narrowing is in effect, this function returns only the visible part |
7ee72033 | 2602 | of the buffer. */) |
5842a27b | 2603 | (void) |
35692fe0 | 2604 | { |
0daf6e8d | 2605 | return make_buffer_string (BEGV, ZV, 1); |
35692fe0 JB |
2606 | } |
2607 | ||
2608 | DEFUN ("insert-buffer-substring", Finsert_buffer_substring, Sinsert_buffer_substring, | |
deb8e082 | 2609 | 1, 3, 0, |
658ec670 | 2610 | doc: /* Insert before point a substring of the contents of BUFFER. |
a1f17501 | 2611 | BUFFER may be a buffer or a buffer name. |
412f1fab JB |
2612 | Arguments START and END are character positions specifying the substring. |
2613 | They default to the values of (point-min) and (point-max) in BUFFER. */) | |
5842a27b | 2614 | (Lisp_Object buffer, Lisp_Object start, Lisp_Object end) |
35692fe0 | 2615 | { |
29cdc13e | 2616 | register EMACS_INT b, e, temp; |
260e2e2a | 2617 | register struct buffer *bp, *obuf; |
658ec670 | 2618 | Lisp_Object buf; |
35692fe0 | 2619 | |
658ec670 JB |
2620 | buf = Fget_buffer (buffer); |
2621 | if (NILP (buf)) | |
2622 | nsberror (buffer); | |
2623 | bp = XBUFFER (buf); | |
4b4deea2 | 2624 | if (NILP (BVAR (bp, name))) |
93b62e82 | 2625 | error ("Selecting deleted buffer"); |
35692fe0 | 2626 | |
2591ec64 EN |
2627 | if (NILP (start)) |
2628 | b = BUF_BEGV (bp); | |
35692fe0 JB |
2629 | else |
2630 | { | |
b7826503 | 2631 | CHECK_NUMBER_COERCE_MARKER (start); |
2591ec64 | 2632 | b = XINT (start); |
35692fe0 | 2633 | } |
2591ec64 EN |
2634 | if (NILP (end)) |
2635 | e = BUF_ZV (bp); | |
35692fe0 JB |
2636 | else |
2637 | { | |
b7826503 | 2638 | CHECK_NUMBER_COERCE_MARKER (end); |
2591ec64 | 2639 | e = XINT (end); |
35692fe0 JB |
2640 | } |
2641 | ||
2591ec64 EN |
2642 | if (b > e) |
2643 | temp = b, b = e, e = temp; | |
35692fe0 | 2644 | |
2591ec64 EN |
2645 | if (!(BUF_BEGV (bp) <= b && e <= BUF_ZV (bp))) |
2646 | args_out_of_range (start, end); | |
35692fe0 | 2647 | |
260e2e2a KH |
2648 | obuf = current_buffer; |
2649 | set_buffer_internal_1 (bp); | |
2591ec64 | 2650 | update_buffer_properties (b, e); |
260e2e2a KH |
2651 | set_buffer_internal_1 (obuf); |
2652 | ||
2591ec64 | 2653 | insert_from_buffer (bp, b, e - b, 0); |
35692fe0 JB |
2654 | return Qnil; |
2655 | } | |
e9cf2084 RS |
2656 | |
2657 | DEFUN ("compare-buffer-substrings", Fcompare_buffer_substrings, Scompare_buffer_substrings, | |
deb8e082 | 2658 | 6, 6, 0, |
7ee72033 | 2659 | doc: /* Compare two substrings of two buffers; return result as number. |
a1f17501 PJ |
2660 | the value is -N if first string is less after N-1 chars, |
2661 | +N if first string is greater after N-1 chars, or 0 if strings match. | |
2662 | Each substring is represented as three arguments: BUFFER, START and END. | |
2663 | That makes six args in all, three for each substring. | |
2664 | ||
2665 | The value of `case-fold-search' in the current buffer | |
7ee72033 | 2666 | determines whether case is significant or ignored. */) |
5842a27b | 2667 | (Lisp_Object buffer1, Lisp_Object start1, Lisp_Object end1, Lisp_Object buffer2, Lisp_Object start2, Lisp_Object end2) |
e9cf2084 | 2668 | { |
29cdc13e | 2669 | register EMACS_INT begp1, endp1, begp2, endp2, temp; |
e9cf2084 | 2670 | register struct buffer *bp1, *bp2; |
1149fd6f | 2671 | register Lisp_Object trt |
4b4deea2 TT |
2672 | = (!NILP (BVAR (current_buffer, case_fold_search)) |
2673 | ? BVAR (current_buffer, case_canon_table) : Qnil); | |
d311d28c PE |
2674 | ptrdiff_t chars = 0; |
2675 | ptrdiff_t i1, i2, i1_byte, i2_byte; | |
e9cf2084 RS |
2676 | |
2677 | /* Find the first buffer and its substring. */ | |
2678 | ||
2679 | if (NILP (buffer1)) | |
2680 | bp1 = current_buffer; | |
2681 | else | |
2682 | { | |
3fff2dfa RS |
2683 | Lisp_Object buf1; |
2684 | buf1 = Fget_buffer (buffer1); | |
2685 | if (NILP (buf1)) | |
2686 | nsberror (buffer1); | |
2687 | bp1 = XBUFFER (buf1); | |
4b4deea2 | 2688 | if (NILP (BVAR (bp1, name))) |
93b62e82 | 2689 | error ("Selecting deleted buffer"); |
e9cf2084 RS |
2690 | } |
2691 | ||
2692 | if (NILP (start1)) | |
2693 | begp1 = BUF_BEGV (bp1); | |
2694 | else | |
2695 | { | |
b7826503 | 2696 | CHECK_NUMBER_COERCE_MARKER (start1); |
e9cf2084 RS |
2697 | begp1 = XINT (start1); |
2698 | } | |
2699 | if (NILP (end1)) | |
2700 | endp1 = BUF_ZV (bp1); | |
2701 | else | |
2702 | { | |
b7826503 | 2703 | CHECK_NUMBER_COERCE_MARKER (end1); |
e9cf2084 RS |
2704 | endp1 = XINT (end1); |
2705 | } | |
2706 | ||
2707 | if (begp1 > endp1) | |
2708 | temp = begp1, begp1 = endp1, endp1 = temp; | |
2709 | ||
2710 | if (!(BUF_BEGV (bp1) <= begp1 | |
2711 | && begp1 <= endp1 | |
2712 | && endp1 <= BUF_ZV (bp1))) | |
2713 | args_out_of_range (start1, end1); | |
2714 | ||
2715 | /* Likewise for second substring. */ | |
2716 | ||
2717 | if (NILP (buffer2)) | |
2718 | bp2 = current_buffer; | |
2719 | else | |
2720 | { | |
3fff2dfa RS |
2721 | Lisp_Object buf2; |
2722 | buf2 = Fget_buffer (buffer2); | |
2723 | if (NILP (buf2)) | |
2724 | nsberror (buffer2); | |
3b1fdd85 | 2725 | bp2 = XBUFFER (buf2); |
4b4deea2 | 2726 | if (NILP (BVAR (bp2, name))) |
93b62e82 | 2727 | error ("Selecting deleted buffer"); |
e9cf2084 RS |
2728 | } |
2729 | ||
2730 | if (NILP (start2)) | |
2731 | begp2 = BUF_BEGV (bp2); | |
2732 | else | |
2733 | { | |
b7826503 | 2734 | CHECK_NUMBER_COERCE_MARKER (start2); |
e9cf2084 RS |
2735 | begp2 = XINT (start2); |
2736 | } | |
2737 | if (NILP (end2)) | |
2738 | endp2 = BUF_ZV (bp2); | |
2739 | else | |
2740 | { | |
b7826503 | 2741 | CHECK_NUMBER_COERCE_MARKER (end2); |
e9cf2084 RS |
2742 | endp2 = XINT (end2); |
2743 | } | |
2744 | ||
2745 | if (begp2 > endp2) | |
2746 | temp = begp2, begp2 = endp2, endp2 = temp; | |
2747 | ||
2748 | if (!(BUF_BEGV (bp2) <= begp2 | |
2749 | && begp2 <= endp2 | |
2750 | && endp2 <= BUF_ZV (bp2))) | |
2751 | args_out_of_range (start2, end2); | |
2752 | ||
07422a12 RS |
2753 | i1 = begp1; |
2754 | i2 = begp2; | |
2755 | i1_byte = buf_charpos_to_bytepos (bp1, i1); | |
2756 | i2_byte = buf_charpos_to_bytepos (bp2, i2); | |
e9cf2084 | 2757 | |
07422a12 | 2758 | while (i1 < endp1 && i2 < endp2) |
e9cf2084 | 2759 | { |
07422a12 RS |
2760 | /* When we find a mismatch, we must compare the |
2761 | characters, not just the bytes. */ | |
2762 | int c1, c2; | |
ec1c14f6 | 2763 | |
2221451f RS |
2764 | QUIT; |
2765 | ||
4b4deea2 | 2766 | if (! NILP (BVAR (bp1, enable_multibyte_characters))) |
07422a12 RS |
2767 | { |
2768 | c1 = BUF_FETCH_MULTIBYTE_CHAR (bp1, i1_byte); | |
2769 | BUF_INC_POS (bp1, i1_byte); | |
2770 | i1++; | |
2771 | } | |
2772 | else | |
2773 | { | |
2774 | c1 = BUF_FETCH_BYTE (bp1, i1); | |
4c0354d7 | 2775 | MAKE_CHAR_MULTIBYTE (c1); |
07422a12 RS |
2776 | i1++; |
2777 | } | |
2778 | ||
4b4deea2 | 2779 | if (! NILP (BVAR (bp2, enable_multibyte_characters))) |
07422a12 RS |
2780 | { |
2781 | c2 = BUF_FETCH_MULTIBYTE_CHAR (bp2, i2_byte); | |
2782 | BUF_INC_POS (bp2, i2_byte); | |
2783 | i2++; | |
2784 | } | |
2785 | else | |
2786 | { | |
2787 | c2 = BUF_FETCH_BYTE (bp2, i2); | |
4c0354d7 | 2788 | MAKE_CHAR_MULTIBYTE (c2); |
07422a12 RS |
2789 | i2++; |
2790 | } | |
ec1c14f6 | 2791 | |
1149fd6f | 2792 | if (!NILP (trt)) |
e9cf2084 | 2793 | { |
1149fd6f SM |
2794 | c1 = CHAR_TABLE_TRANSLATE (trt, c1); |
2795 | c2 = CHAR_TABLE_TRANSLATE (trt, c2); | |
e9cf2084 RS |
2796 | } |
2797 | if (c1 < c2) | |
ec1c14f6 | 2798 | return make_number (- 1 - chars); |
e9cf2084 | 2799 | if (c1 > c2) |
ec1c14f6 | 2800 | return make_number (chars + 1); |
07422a12 RS |
2801 | |
2802 | chars++; | |
e9cf2084 RS |
2803 | } |
2804 | ||
2805 | /* The strings match as far as they go. | |
2806 | If one is shorter, that one is less. */ | |
07422a12 | 2807 | if (chars < endp1 - begp1) |
ec1c14f6 | 2808 | return make_number (chars + 1); |
07422a12 | 2809 | else if (chars < endp2 - begp2) |
ec1c14f6 | 2810 | return make_number (- chars - 1); |
e9cf2084 RS |
2811 | |
2812 | /* Same length too => they are equal. */ | |
2813 | return make_number (0); | |
2814 | } | |
35692fe0 | 2815 | \f |
d5a539cd | 2816 | static Lisp_Object |
971de7fb | 2817 | subst_char_in_region_unwind (Lisp_Object arg) |
d5a539cd | 2818 | { |
4b4deea2 | 2819 | return BVAR (current_buffer, undo_list) = arg; |
d5a539cd RS |
2820 | } |
2821 | ||
c8e76b47 | 2822 | static Lisp_Object |
971de7fb | 2823 | subst_char_in_region_unwind_1 (Lisp_Object arg) |
c8e76b47 | 2824 | { |
4b4deea2 | 2825 | return BVAR (current_buffer, filename) = arg; |
c8e76b47 RS |
2826 | } |
2827 | ||
35692fe0 | 2828 | DEFUN ("subst-char-in-region", Fsubst_char_in_region, |
deb8e082 | 2829 | Ssubst_char_in_region, 4, 5, 0, |
7ee72033 | 2830 | doc: /* From START to END, replace FROMCHAR with TOCHAR each time it occurs. |
a1f17501 PJ |
2831 | If optional arg NOUNDO is non-nil, don't record this change for undo |
2832 | and don't mark the buffer as really changed. | |
7ee72033 | 2833 | Both characters must have the same length of multi-byte form. */) |
5842a27b | 2834 | (Lisp_Object start, Lisp_Object end, Lisp_Object fromchar, Lisp_Object tochar, Lisp_Object noundo) |
35692fe0 | 2835 | { |
d311d28c | 2836 | register ptrdiff_t pos, pos_byte, stop, i, len, end_byte; |
0f2e2a3b SM |
2837 | /* Keep track of the first change in the buffer: |
2838 | if 0 we haven't found it yet. | |
2839 | if < 0 we've found it and we've run the before-change-function. | |
2840 | if > 0 we've actually performed it and the value is its position. */ | |
d311d28c | 2841 | ptrdiff_t changed = 0; |
d5c2c403 KH |
2842 | unsigned char fromstr[MAX_MULTIBYTE_LENGTH], tostr[MAX_MULTIBYTE_LENGTH]; |
2843 | unsigned char *p; | |
d311d28c | 2844 | ptrdiff_t count = SPECPDL_INDEX (); |
aa801467 KH |
2845 | #define COMBINING_NO 0 |
2846 | #define COMBINING_BEFORE 1 | |
2847 | #define COMBINING_AFTER 2 | |
2848 | #define COMBINING_BOTH (COMBINING_BEFORE | COMBINING_AFTER) | |
2849 | int maybe_byte_combining = COMBINING_NO; | |
d311d28c | 2850 | ptrdiff_t last_changed = 0; |
4b4deea2 | 2851 | int multibyte_p = !NILP (BVAR (current_buffer, enable_multibyte_characters)); |
13bdea59 | 2852 | int fromc, toc; |
35692fe0 | 2853 | |
0f2e2a3b SM |
2854 | restart: |
2855 | ||
35692fe0 | 2856 | validate_region (&start, &end); |
13bdea59 PE |
2857 | CHECK_CHARACTER (fromchar); |
2858 | CHECK_CHARACTER (tochar); | |
2859 | fromc = XFASTINT (fromchar); | |
2860 | toc = XFASTINT (tochar); | |
35692fe0 | 2861 | |
7439e5b9 | 2862 | if (multibyte_p) |
fb8106e8 | 2863 | { |
13bdea59 PE |
2864 | len = CHAR_STRING (fromc, fromstr); |
2865 | if (CHAR_STRING (toc, tostr) != len) | |
fdd6025e | 2866 | error ("Characters in `subst-char-in-region' have different byte-lengths"); |
aa801467 KH |
2867 | if (!ASCII_BYTE_P (*tostr)) |
2868 | { | |
2869 | /* If *TOSTR is in the range 0x80..0x9F and TOCHAR is not a | |
2870 | complete multibyte character, it may be combined with the | |
2871 | after bytes. If it is in the range 0xA0..0xFF, it may be | |
2872 | combined with the before and after bytes. */ | |
2873 | if (!CHAR_HEAD_P (*tostr)) | |
2874 | maybe_byte_combining = COMBINING_BOTH; | |
2875 | else if (BYTES_BY_CHAR_HEAD (*tostr) > len) | |
2876 | maybe_byte_combining = COMBINING_AFTER; | |
2877 | } | |
fb8106e8 KH |
2878 | } |
2879 | else | |
2880 | { | |
2881 | len = 1; | |
13bdea59 PE |
2882 | fromstr[0] = fromc; |
2883 | tostr[0] = toc; | |
fb8106e8 KH |
2884 | } |
2885 | ||
84246b95 KH |
2886 | pos = XINT (start); |
2887 | pos_byte = CHAR_TO_BYTE (pos); | |
ec1c14f6 RS |
2888 | stop = CHAR_TO_BYTE (XINT (end)); |
2889 | end_byte = stop; | |
35692fe0 | 2890 | |
d5a539cd RS |
2891 | /* If we don't want undo, turn off putting stuff on the list. |
2892 | That's faster than getting rid of things, | |
c8e76b47 RS |
2893 | and it prevents even the entry for a first change. |
2894 | Also inhibit locking the file. */ | |
0f2e2a3b | 2895 | if (!changed && !NILP (noundo)) |
d5a539cd RS |
2896 | { |
2897 | record_unwind_protect (subst_char_in_region_unwind, | |
4b4deea2 TT |
2898 | BVAR (current_buffer, undo_list)); |
2899 | BVAR (current_buffer, undo_list) = Qt; | |
c8e76b47 RS |
2900 | /* Don't do file-locking. */ |
2901 | record_unwind_protect (subst_char_in_region_unwind_1, | |
4b4deea2 TT |
2902 | BVAR (current_buffer, filename)); |
2903 | BVAR (current_buffer, filename) = Qnil; | |
d5a539cd RS |
2904 | } |
2905 | ||
84246b95 | 2906 | if (pos_byte < GPT_BYTE) |
ec1c14f6 | 2907 | stop = min (stop, GPT_BYTE); |
fb8106e8 | 2908 | while (1) |
35692fe0 | 2909 | { |
d311d28c | 2910 | ptrdiff_t pos_byte_next = pos_byte; |
a3360ff9 | 2911 | |
84246b95 | 2912 | if (pos_byte >= stop) |
fb8106e8 | 2913 | { |
84246b95 | 2914 | if (pos_byte >= end_byte) break; |
ec1c14f6 | 2915 | stop = end_byte; |
fb8106e8 | 2916 | } |
84246b95 | 2917 | p = BYTE_POS_ADDR (pos_byte); |
7439e5b9 GM |
2918 | if (multibyte_p) |
2919 | INC_POS (pos_byte_next); | |
2920 | else | |
2921 | ++pos_byte_next; | |
a3360ff9 KH |
2922 | if (pos_byte_next - pos_byte == len |
2923 | && p[0] == fromstr[0] | |
fb8106e8 KH |
2924 | && (len == 1 |
2925 | || (p[1] == fromstr[1] | |
2926 | && (len == 2 || (p[2] == fromstr[2] | |
2927 | && (len == 3 || p[3] == fromstr[3])))))) | |
35692fe0 | 2928 | { |
0f2e2a3b SM |
2929 | if (changed < 0) |
2930 | /* We've already seen this and run the before-change-function; | |
2931 | this time we only need to record the actual position. */ | |
2932 | changed = pos; | |
2933 | else if (!changed) | |
60b96ee7 | 2934 | { |
0f2e2a3b | 2935 | changed = -1; |
3e145152 | 2936 | modify_region (current_buffer, pos, XINT (end), 0); |
7653d030 RS |
2937 | |
2938 | if (! NILP (noundo)) | |
2939 | { | |
1e158d25 RS |
2940 | if (MODIFF - 1 == SAVE_MODIFF) |
2941 | SAVE_MODIFF++; | |
0b5397c2 SM |
2942 | if (MODIFF - 1 == BUF_AUTOSAVE_MODIFF (current_buffer)) |
2943 | BUF_AUTOSAVE_MODIFF (current_buffer)++; | |
7653d030 | 2944 | } |
0f2e2a3b SM |
2945 | |
2946 | /* The before-change-function may have moved the gap | |
2947 | or even modified the buffer so we should start over. */ | |
2948 | goto restart; | |
60b96ee7 RS |
2949 | } |
2950 | ||
0c1e3b85 | 2951 | /* Take care of the case where the new character |
34a7a267 | 2952 | combines with neighboring bytes. */ |
a3360ff9 | 2953 | if (maybe_byte_combining |
aa801467 KH |
2954 | && (maybe_byte_combining == COMBINING_AFTER |
2955 | ? (pos_byte_next < Z_BYTE | |
2956 | && ! CHAR_HEAD_P (FETCH_BYTE (pos_byte_next))) | |
2957 | : ((pos_byte_next < Z_BYTE | |
2958 | && ! CHAR_HEAD_P (FETCH_BYTE (pos_byte_next))) | |
2959 | || (pos_byte > BEG_BYTE | |
2960 | && ! ASCII_BYTE_P (FETCH_BYTE (pos_byte - 1)))))) | |
0c1e3b85 RS |
2961 | { |
2962 | Lisp_Object tem, string; | |
2963 | ||
2964 | struct gcpro gcpro1; | |
2965 | ||
4b4deea2 | 2966 | tem = BVAR (current_buffer, undo_list); |
0c1e3b85 RS |
2967 | GCPRO1 (tem); |
2968 | ||
aa801467 | 2969 | /* Make a multibyte string containing this single character. */ |
e7f8264d | 2970 | string = make_multibyte_string ((char *) tostr, 1, len); |
0c1e3b85 RS |
2971 | /* replace_range is less efficient, because it moves the gap, |
2972 | but it handles combining correctly. */ | |
2973 | replace_range (pos, pos + 1, string, | |
9869520f | 2974 | 0, 0, 1); |
a3360ff9 KH |
2975 | pos_byte_next = CHAR_TO_BYTE (pos); |
2976 | if (pos_byte_next > pos_byte) | |
2977 | /* Before combining happened. We should not increment | |
3f5409d3 KH |
2978 | POS. So, to cancel the later increment of POS, |
2979 | decrease it now. */ | |
2980 | pos--; | |
a3360ff9 | 2981 | else |
3f5409d3 | 2982 | INC_POS (pos_byte_next); |
34a7a267 | 2983 | |
0c1e3b85 | 2984 | if (! NILP (noundo)) |
4b4deea2 | 2985 | BVAR (current_buffer, undo_list) = tem; |
0c1e3b85 RS |
2986 | |
2987 | UNGCPRO; | |
2988 | } | |
2989 | else | |
2990 | { | |
2991 | if (NILP (noundo)) | |
2992 | record_change (pos, 1); | |
2993 | for (i = 0; i < len; i++) *p++ = tostr[i]; | |
2994 | } | |
d5c2c403 | 2995 | last_changed = pos + 1; |
35692fe0 | 2996 | } |
3f5409d3 KH |
2997 | pos_byte = pos_byte_next; |
2998 | pos++; | |
35692fe0 JB |
2999 | } |
3000 | ||
0f2e2a3b | 3001 | if (changed > 0) |
d5c2c403 KH |
3002 | { |
3003 | signal_after_change (changed, | |
3004 | last_changed - changed, last_changed - changed); | |
3005 | update_compositions (changed, last_changed, CHECK_ALL); | |
3006 | } | |
60b96ee7 | 3007 | |
d5a539cd | 3008 | unbind_to (count, Qnil); |
35692fe0 JB |
3009 | return Qnil; |
3010 | } | |
3011 | ||
f555f8cf | 3012 | |
d311d28c | 3013 | static Lisp_Object check_translation (ptrdiff_t, ptrdiff_t, ptrdiff_t, |
c8a66ab8 | 3014 | Lisp_Object); |
f555f8cf KH |
3015 | |
3016 | /* Helper function for Ftranslate_region_internal. | |
3017 | ||
3018 | Check if a character sequence at POS (POS_BYTE) matches an element | |
3019 | of VAL. VAL is a list (([FROM-CHAR ...] . TO) ...). If a matching | |
3020 | element is found, return it. Otherwise return Qnil. */ | |
3021 | ||
3022 | static Lisp_Object | |
d311d28c | 3023 | check_translation (ptrdiff_t pos, ptrdiff_t pos_byte, ptrdiff_t end, |
c8a66ab8 | 3024 | Lisp_Object val) |
f555f8cf KH |
3025 | { |
3026 | int buf_size = 16, buf_used = 0; | |
3027 | int *buf = alloca (sizeof (int) * buf_size); | |
3028 | ||
3029 | for (; CONSP (val); val = XCDR (val)) | |
3030 | { | |
3031 | Lisp_Object elt; | |
d311d28c | 3032 | ptrdiff_t len, i; |
f555f8cf KH |
3033 | |
3034 | elt = XCAR (val); | |
3035 | if (! CONSP (elt)) | |
3036 | continue; | |
3037 | elt = XCAR (elt); | |
3038 | if (! VECTORP (elt)) | |
3039 | continue; | |
3040 | len = ASIZE (elt); | |
3041 | if (len <= end - pos) | |
3042 | { | |
3043 | for (i = 0; i < len; i++) | |
3044 | { | |
3045 | if (buf_used <= i) | |
3046 | { | |
3047 | unsigned char *p = BYTE_POS_ADDR (pos_byte); | |
c8a66ab8 | 3048 | int len1; |
f555f8cf KH |
3049 | |
3050 | if (buf_used == buf_size) | |
3051 | { | |
3052 | int *newbuf; | |
3053 | ||
3054 | buf_size += 16; | |
3055 | newbuf = alloca (sizeof (int) * buf_size); | |
3056 | memcpy (newbuf, buf, sizeof (int) * buf_used); | |
3057 | buf = newbuf; | |
3058 | } | |
c8a66ab8 EZ |
3059 | buf[buf_used++] = STRING_CHAR_AND_LENGTH (p, len1); |
3060 | pos_byte += len1; | |
f555f8cf KH |
3061 | } |
3062 | if (XINT (AREF (elt, i)) != buf[i]) | |
3063 | break; | |
3064 | } | |
3065 | if (i == len) | |
3066 | return XCAR (val); | |
3067 | } | |
3068 | } | |
3069 | return Qnil; | |
3070 | } | |
3071 | ||
3072 | ||
8583605b KH |
3073 | DEFUN ("translate-region-internal", Ftranslate_region_internal, |
3074 | Stranslate_region_internal, 3, 3, 0, | |
3075 | doc: /* Internal use only. | |
3076 | From START to END, translate characters according to TABLE. | |
f555f8cf KH |
3077 | TABLE is a string or a char-table; the Nth character in it is the |
3078 | mapping for the character with code N. | |
7ee72033 | 3079 | It returns the number of characters changed. */) |
5842a27b | 3080 | (Lisp_Object start, Lisp_Object end, register Lisp_Object table) |
35692fe0 | 3081 | { |
35692fe0 | 3082 | register unsigned char *tt; /* Trans table. */ |
35692fe0 JB |
3083 | register int nc; /* New character. */ |
3084 | int cnt; /* Number of changes made. */ | |
d311d28c PE |
3085 | ptrdiff_t size; /* Size of translate table. */ |
3086 | ptrdiff_t pos, pos_byte, end_pos; | |
4b4deea2 | 3087 | int multibyte = !NILP (BVAR (current_buffer, enable_multibyte_characters)); |
9710023e | 3088 | int string_multibyte IF_LINT (= 0); |
35692fe0 JB |
3089 | |
3090 | validate_region (&start, &end); | |
8583605b | 3091 | if (CHAR_TABLE_P (table)) |
f555f8cf KH |
3092 | { |
3093 | if (! EQ (XCHAR_TABLE (table)->purpose, Qtranslation_table)) | |
3094 | error ("Not a translation table"); | |
eb3d9ec7 | 3095 | size = MAX_CHAR; |
f555f8cf KH |
3096 | tt = NULL; |
3097 | } | |
8583605b KH |
3098 | else |
3099 | { | |
3100 | CHECK_STRING (table); | |
3101 | ||
eb3d9ec7 KH |
3102 | if (! multibyte && (SCHARS (table) < SBYTES (table))) |
3103 | table = string_make_unibyte (table); | |
8583605b KH |
3104 | string_multibyte = SCHARS (table) < SBYTES (table); |
3105 | size = SBYTES (table); | |
3106 | tt = SDATA (table); | |
3107 | } | |
35692fe0 | 3108 | |
1f24f4fd | 3109 | pos = XINT (start); |
8583605b | 3110 | pos_byte = CHAR_TO_BYTE (pos); |
e65837df | 3111 | end_pos = XINT (end); |
af6ea8ad | 3112 | modify_region (current_buffer, pos, end_pos, 0); |
35692fe0 JB |
3113 | |
3114 | cnt = 0; | |
f555f8cf | 3115 | for (; pos < end_pos; ) |
35692fe0 | 3116 | { |
ec1c14f6 | 3117 | register unsigned char *p = BYTE_POS_ADDR (pos_byte); |
8583605b KH |
3118 | unsigned char *str, buf[MAX_MULTIBYTE_LENGTH]; |
3119 | int len, str_len; | |
1f24f4fd | 3120 | int oc; |
f555f8cf | 3121 | Lisp_Object val; |
ec1c14f6 | 3122 | |
e8cce5af | 3123 | if (multibyte) |
62a6e103 | 3124 | oc = STRING_CHAR_AND_LENGTH (p, len); |
e8cce5af | 3125 | else |
eb3d9ec7 KH |
3126 | oc = *p, len = 1; |
3127 | if (oc < size) | |
35692fe0 | 3128 | { |
eb3d9ec7 | 3129 | if (tt) |
35692fe0 | 3130 | { |
fa056b08 KS |
3131 | /* Reload as signal_after_change in last iteration may GC. */ |
3132 | tt = SDATA (table); | |
8583605b | 3133 | if (string_multibyte) |
0c1e3b85 | 3134 | { |
8583605b | 3135 | str = tt + string_char_to_byte (table, oc); |
62a6e103 | 3136 | nc = STRING_CHAR_AND_LENGTH (str, str_len); |
0c1e3b85 RS |
3137 | } |
3138 | else | |
3139 | { | |
eb3d9ec7 KH |
3140 | nc = tt[oc]; |
3141 | if (! ASCII_BYTE_P (nc) && multibyte) | |
3142 | { | |
3143 | str_len = BYTE8_STRING (nc, buf); | |
3144 | str = buf; | |
3145 | } | |
3146 | else | |
3147 | { | |
3148 | str_len = 1; | |
3149 | str = tt + oc; | |
3150 | } | |
0c1e3b85 | 3151 | } |
35692fe0 | 3152 | } |
eb3d9ec7 | 3153 | else |
f555f8cf | 3154 | { |
eb3d9ec7 KH |
3155 | nc = oc; |
3156 | val = CHAR_TABLE_REF (table, oc); | |
045eb8d9 | 3157 | if (CHARACTERP (val)) |
eb3d9ec7 | 3158 | { |
045eb8d9 | 3159 | nc = XFASTINT (val); |
eb3d9ec7 KH |
3160 | str_len = CHAR_STRING (nc, buf); |
3161 | str = buf; | |
3162 | } | |
3163 | else if (VECTORP (val) || (CONSP (val))) | |
3164 | { | |
3165 | /* VAL is [TO_CHAR ...] or (([FROM-CHAR ...] . TO) ...) | |
3166 | where TO is TO-CHAR or [TO-CHAR ...]. */ | |
3167 | nc = -1; | |
3168 | } | |
f555f8cf | 3169 | } |
8583605b | 3170 | |
eb3d9ec7 | 3171 | if (nc != oc && nc >= 0) |
8583605b | 3172 | { |
f555f8cf KH |
3173 | /* Simple one char to one char translation. */ |
3174 | if (len != str_len) | |
3175 | { | |
3176 | Lisp_Object string; | |
8583605b | 3177 | |
f555f8cf KH |
3178 | /* This is less efficient, because it moves the gap, |
3179 | but it should handle multibyte characters correctly. */ | |
e7f8264d | 3180 | string = make_multibyte_string ((char *) str, 1, str_len); |
f555f8cf KH |
3181 | replace_range (pos, pos + 1, string, 1, 0, 1); |
3182 | len = str_len; | |
3183 | } | |
3184 | else | |
3185 | { | |
3186 | record_change (pos, 1); | |
3187 | while (str_len-- > 0) | |
3188 | *p++ = *str++; | |
3189 | signal_after_change (pos, 1, 1); | |
3190 | update_compositions (pos, pos + 1, CHECK_BORDER); | |
3191 | } | |
3192 | ++cnt; | |
8583605b | 3193 | } |
eb3d9ec7 | 3194 | else if (nc < 0) |
8583605b | 3195 | { |
f555f8cf KH |
3196 | Lisp_Object string; |
3197 | ||
3198 | if (CONSP (val)) | |
3199 | { | |
3200 | val = check_translation (pos, pos_byte, end_pos, val); | |
3201 | if (NILP (val)) | |
3202 | { | |
3203 | pos_byte += len; | |
3204 | pos++; | |
3205 | continue; | |
3206 | } | |
3207 | /* VAL is ([FROM-CHAR ...] . TO). */ | |
3208 | len = ASIZE (XCAR (val)); | |
3209 | val = XCDR (val); | |
3210 | } | |
3211 | else | |
3212 | len = 1; | |
3213 | ||
3214 | if (VECTORP (val)) | |
3215 | { | |
bde25748 | 3216 | string = Fconcat (1, &val); |
f555f8cf KH |
3217 | } |
3218 | else | |
3219 | { | |
3220 | string = Fmake_string (make_number (1), val); | |
3221 | } | |
3222 | replace_range (pos, pos + len, string, 1, 0, 1); | |
3223 | pos_byte += SBYTES (string); | |
3224 | pos += SCHARS (string); | |
3225 | cnt += SCHARS (string); | |
3226 | end_pos += SCHARS (string) - len; | |
3227 | continue; | |
8583605b | 3228 | } |
8583605b KH |
3229 | } |
3230 | pos_byte += len; | |
3f5409d3 | 3231 | pos++; |
35692fe0 JB |
3232 | } |
3233 | ||
ec1c14f6 | 3234 | return make_number (cnt); |
35692fe0 JB |
3235 | } |
3236 | ||
a7ca3326 | 3237 | DEFUN ("delete-region", Fdelete_region, Sdelete_region, 2, 2, "r", |
3bbd2265 | 3238 | doc: /* Delete the text between START and END. |
f0fcdf4b LMI |
3239 | If called interactively, delete the region between point and mark. |
3240 | This command deletes buffer text without modifying the kill ring. */) | |
5842a27b | 3241 | (Lisp_Object start, Lisp_Object end) |
35692fe0 | 3242 | { |
2591ec64 EN |
3243 | validate_region (&start, &end); |
3244 | del_range (XINT (start), XINT (end)); | |
35692fe0 JB |
3245 | return Qnil; |
3246 | } | |
7dae4502 SM |
3247 | |
3248 | DEFUN ("delete-and-extract-region", Fdelete_and_extract_region, | |
3249 | Sdelete_and_extract_region, 2, 2, 0, | |
7ee72033 | 3250 | doc: /* Delete the text between START and END and return it. */) |
5842a27b | 3251 | (Lisp_Object start, Lisp_Object end) |
7dae4502 SM |
3252 | { |
3253 | validate_region (&start, &end); | |
8550b998 | 3254 | if (XINT (start) == XINT (end)) |
977f6cfb | 3255 | return empty_unibyte_string; |
7dae4502 SM |
3256 | return del_range_1 (XINT (start), XINT (end), 1, 1); |
3257 | } | |
35692fe0 | 3258 | \f |
a7ca3326 | 3259 | DEFUN ("widen", Fwiden, Swiden, 0, 0, "", |
7ee72033 MB |
3260 | doc: /* Remove restrictions (narrowing) from current buffer. |
3261 | This allows the buffer's full text to be seen and edited. */) | |
5842a27b | 3262 | (void) |
35692fe0 | 3263 | { |
2cad2e34 RS |
3264 | if (BEG != BEGV || Z != ZV) |
3265 | current_buffer->clip_changed = 1; | |
35692fe0 | 3266 | BEGV = BEG; |
ec1c14f6 RS |
3267 | BEGV_BYTE = BEG_BYTE; |
3268 | SET_BUF_ZV_BOTH (current_buffer, Z, Z_BYTE); | |
52b14ac0 JB |
3269 | /* Changing the buffer bounds invalidates any recorded current column. */ |
3270 | invalidate_current_column (); | |
35692fe0 JB |
3271 | return Qnil; |
3272 | } | |
3273 | ||
a7ca3326 | 3274 | DEFUN ("narrow-to-region", Fnarrow_to_region, Snarrow_to_region, 2, 2, "r", |
7ee72033 | 3275 | doc: /* Restrict editing in this buffer to the current region. |
a1f17501 PJ |
3276 | The rest of the text becomes temporarily invisible and untouchable |
3277 | but is not deleted; if you save the buffer in a file, the invisible | |
3278 | text is included in the file. \\[widen] makes all visible again. | |
3279 | See also `save-restriction'. | |
3280 | ||
3281 | When calling from a program, pass two arguments; positions (integers | |
7ee72033 | 3282 | or markers) bounding the text that should remain visible. */) |
5842a27b | 3283 | (register Lisp_Object start, Lisp_Object end) |
35692fe0 | 3284 | { |
b7826503 PJ |
3285 | CHECK_NUMBER_COERCE_MARKER (start); |
3286 | CHECK_NUMBER_COERCE_MARKER (end); | |
35692fe0 | 3287 | |
2591ec64 | 3288 | if (XINT (start) > XINT (end)) |
35692fe0 | 3289 | { |
b5a6948e | 3290 | Lisp_Object tem; |
2591ec64 | 3291 | tem = start; start = end; end = tem; |
35692fe0 JB |
3292 | } |
3293 | ||
2591ec64 EN |
3294 | if (!(BEG <= XINT (start) && XINT (start) <= XINT (end) && XINT (end) <= Z)) |
3295 | args_out_of_range (start, end); | |
35692fe0 | 3296 | |
2cad2e34 RS |
3297 | if (BEGV != XFASTINT (start) || ZV != XFASTINT (end)) |
3298 | current_buffer->clip_changed = 1; | |
3299 | ||
ec1c14f6 | 3300 | SET_BUF_BEGV (current_buffer, XFASTINT (start)); |
2591ec64 | 3301 | SET_BUF_ZV (current_buffer, XFASTINT (end)); |
6ec8bbd2 | 3302 | if (PT < XFASTINT (start)) |
2591ec64 | 3303 | SET_PT (XFASTINT (start)); |
6ec8bbd2 | 3304 | if (PT > XFASTINT (end)) |
2591ec64 | 3305 | SET_PT (XFASTINT (end)); |
52b14ac0 JB |
3306 | /* Changing the buffer bounds invalidates any recorded current column. */ |
3307 | invalidate_current_column (); | |
35692fe0 JB |
3308 | return Qnil; |
3309 | } | |
3310 | ||
3311 | Lisp_Object | |
971de7fb | 3312 | save_restriction_save (void) |
35692fe0 | 3313 | { |
d6abb4c7 MB |
3314 | if (BEGV == BEG && ZV == Z) |
3315 | /* The common case that the buffer isn't narrowed. | |
3316 | We return just the buffer object, which save_restriction_restore | |
3317 | recognizes as meaning `no restriction'. */ | |
3318 | return Fcurrent_buffer (); | |
3319 | else | |
3320 | /* We have to save a restriction, so return a pair of markers, one | |
3321 | for the beginning and one for the end. */ | |
3322 | { | |
3323 | Lisp_Object beg, end; | |
3324 | ||
657924ff DA |
3325 | beg = build_marker (current_buffer, BEGV, BEGV_BYTE); |
3326 | end = build_marker (current_buffer, ZV, ZV_BYTE); | |
35692fe0 | 3327 | |
d6abb4c7 | 3328 | /* END must move forward if text is inserted at its exact location. */ |
5e617bc2 | 3329 | XMARKER (end)->insertion_type = 1; |
d6abb4c7 MB |
3330 | |
3331 | return Fcons (beg, end); | |
3332 | } | |
35692fe0 JB |
3333 | } |
3334 | ||
3335 | Lisp_Object | |
971de7fb | 3336 | save_restriction_restore (Lisp_Object data) |
35692fe0 | 3337 | { |
d528b1ce SM |
3338 | struct buffer *cur = NULL; |
3339 | struct buffer *buf = (CONSP (data) | |
3340 | ? XMARKER (XCAR (data))->buffer | |
3341 | : XBUFFER (data)); | |
3342 | ||
4b4deea2 | 3343 | if (buf && buf != current_buffer && !NILP (BVAR (buf, pt_marker))) |
d528b1ce SM |
3344 | { /* If `buf' uses markers to keep track of PT, BEGV, and ZV (as |
3345 | is the case if it is or has an indirect buffer), then make | |
3346 | sure it is current before we update BEGV, so | |
3347 | set_buffer_internal takes care of managing those markers. */ | |
3348 | cur = current_buffer; | |
3349 | set_buffer_internal (buf); | |
3350 | } | |
3351 | ||
d6abb4c7 MB |
3352 | if (CONSP (data)) |
3353 | /* A pair of marks bounding a saved restriction. */ | |
35692fe0 | 3354 | { |
d6abb4c7 MB |
3355 | struct Lisp_Marker *beg = XMARKER (XCAR (data)); |
3356 | struct Lisp_Marker *end = XMARKER (XCDR (data)); | |
d528b1ce | 3357 | eassert (buf == end->buffer); |
2cad2e34 | 3358 | |
63884563 RS |
3359 | if (buf /* Verify marker still points to a buffer. */ |
3360 | && (beg->charpos != BUF_BEGV (buf) || end->charpos != BUF_ZV (buf))) | |
d6abb4c7 MB |
3361 | /* The restriction has changed from the saved one, so restore |
3362 | the saved restriction. */ | |
3363 | { | |
d311d28c | 3364 | ptrdiff_t pt = BUF_PT (buf); |
d6abb4c7 MB |
3365 | |
3366 | SET_BUF_BEGV_BOTH (buf, beg->charpos, beg->bytepos); | |
3367 | SET_BUF_ZV_BOTH (buf, end->charpos, end->bytepos); | |
3368 | ||
3369 | if (pt < beg->charpos || pt > end->charpos) | |
3370 | /* The point is outside the new visible range, move it inside. */ | |
3371 | SET_BUF_PT_BOTH (buf, | |
3372 | clip_to_bounds (beg->charpos, pt, end->charpos), | |
63884563 | 3373 | clip_to_bounds (beg->bytepos, BUF_PT_BYTE (buf), |
d6abb4c7 | 3374 | end->bytepos)); |
177c0ea7 | 3375 | |
d6abb4c7 MB |
3376 | buf->clip_changed = 1; /* Remember that the narrowing changed. */ |
3377 | } | |
3628596a DA |
3378 | /* These aren't needed anymore, so don't wait for GC. */ |
3379 | free_marker (XCAR (data)); | |
3380 | free_marker (XCDR (data)); | |
3381 | free_cons (XCONS (data)); | |
d6abb4c7 MB |
3382 | } |
3383 | else | |
3384 | /* A buffer, which means that there was no old restriction. */ | |
3385 | { | |
63884563 RS |
3386 | if (buf /* Verify marker still points to a buffer. */ |
3387 | && (BUF_BEGV (buf) != BUF_BEG (buf) || BUF_ZV (buf) != BUF_Z (buf))) | |
d6abb4c7 MB |
3388 | /* The buffer has been narrowed, get rid of the narrowing. */ |
3389 | { | |
63884563 RS |
3390 | SET_BUF_BEGV_BOTH (buf, BUF_BEG (buf), BUF_BEG_BYTE (buf)); |
3391 | SET_BUF_ZV_BOTH (buf, BUF_Z (buf), BUF_Z_BYTE (buf)); | |
35692fe0 | 3392 | |
d6abb4c7 MB |
3393 | buf->clip_changed = 1; /* Remember that the narrowing changed. */ |
3394 | } | |
3395 | } | |
35692fe0 | 3396 | |
aca092ac SM |
3397 | /* Changing the buffer bounds invalidates any recorded current column. */ |
3398 | invalidate_current_column (); | |
3399 | ||
d528b1ce SM |
3400 | if (cur) |
3401 | set_buffer_internal (cur); | |
3402 | ||
35692fe0 JB |
3403 | return Qnil; |
3404 | } | |
3405 | ||
3406 | DEFUN ("save-restriction", Fsave_restriction, Ssave_restriction, 0, UNEVALLED, 0, | |
7ee72033 | 3407 | doc: /* Execute BODY, saving and restoring current buffer's restrictions. |
a1f17501 | 3408 | The buffer's restrictions make parts of the beginning and end invisible. |
9671c13a | 3409 | \(They are set up with `narrow-to-region' and eliminated with `widen'.) |
a1f17501 PJ |
3410 | This special form, `save-restriction', saves the current buffer's restrictions |
3411 | when it is entered, and restores them when it is exited. | |
3412 | So any `narrow-to-region' within BODY lasts only until the end of the form. | |
3413 | The old restrictions settings are restored | |
3414 | even in case of abnormal exit (throw or error). | |
3415 | ||
3416 | The value returned is the value of the last form in BODY. | |
3417 | ||
3418 | Note: if you are using both `save-excursion' and `save-restriction', | |
3419 | use `save-excursion' outermost: | |
33c2d29f MB |
3420 | (save-excursion (save-restriction ...)) |
3421 | ||
3422 | usage: (save-restriction &rest BODY) */) | |
5842a27b | 3423 | (Lisp_Object body) |
35692fe0 JB |
3424 | { |
3425 | register Lisp_Object val; | |
d311d28c | 3426 | ptrdiff_t count = SPECPDL_INDEX (); |
35692fe0 JB |
3427 | |
3428 | record_unwind_protect (save_restriction_restore, save_restriction_save ()); | |
3429 | val = Fprogn (body); | |
3430 | return unbind_to (count, val); | |
3431 | } | |
3432 | \f | |
0ae83348 | 3433 | /* Buffer for the most recent text displayed by Fmessage_box. */ |
671fbc4d KH |
3434 | static char *message_text; |
3435 | ||
3436 | /* Allocated length of that buffer. */ | |
c9f8d652 | 3437 | static ptrdiff_t message_length; |
671fbc4d | 3438 | |
a7ca3326 | 3439 | DEFUN ("message", Fmessage, Smessage, 1, MANY, 0, |
db18da59 | 3440 | doc: /* Display a message at the bottom of the screen. |
281c1721 RS |
3441 | The message also goes into the `*Messages*' buffer. |
3442 | \(In keyboard macros, that's all it does.) | |
db18da59 | 3443 | Return the message. |
281c1721 | 3444 | |
a1f17501 PJ |
3445 | The first argument is a format control string, and the rest are data |
3446 | to be formatted under control of the string. See `format' for details. | |
3447 | ||
7bd5bcfb KS |
3448 | Note: Use (message "%s" VALUE) to print the value of expressions and |
3449 | variables to avoid accidentally interpreting `%' as format specifiers. | |
3450 | ||
fa056b08 KS |
3451 | If the first argument is nil or the empty string, the function clears |
3452 | any existing message; this lets the minibuffer contents show. See | |
3453 | also `current-message'. | |
4bfbe194 | 3454 | |
867b9600 | 3455 | usage: (message FORMAT-STRING &rest ARGS) */) |
f66c7cf8 | 3456 | (ptrdiff_t nargs, Lisp_Object *args) |
35692fe0 | 3457 | { |
6076e561 RS |
3458 | if (NILP (args[0]) |
3459 | || (STRINGP (args[0]) | |
3460 | && SBYTES (args[0]) == 0)) | |
f0250249 JB |
3461 | { |
3462 | message (0); | |
674a954a | 3463 | return args[0]; |
f0250249 | 3464 | } |
ccdac5be JB |
3465 | else |
3466 | { | |
3467 | register Lisp_Object val; | |
304f1f12 | 3468 | val = Fformat (nargs, args); |
d5db4077 | 3469 | message3 (val, SBYTES (val), STRING_MULTIBYTE (val)); |
ccdac5be JB |
3470 | return val; |
3471 | } | |
35692fe0 JB |
3472 | } |
3473 | ||
cacc3e2c | 3474 | DEFUN ("message-box", Fmessage_box, Smessage_box, 1, MANY, 0, |
7ee72033 | 3475 | doc: /* Display a message, in a dialog box if possible. |
a1f17501 PJ |
3476 | If a dialog box is not available, use the echo area. |
3477 | The first argument is a format control string, and the rest are data | |
3478 | to be formatted under control of the string. See `format' for details. | |
3479 | ||
fa056b08 KS |
3480 | If the first argument is nil or the empty string, clear any existing |
3481 | message; let the minibuffer contents show. | |
4bfbe194 | 3482 | |
867b9600 | 3483 | usage: (message-box FORMAT-STRING &rest ARGS) */) |
f66c7cf8 | 3484 | (ptrdiff_t nargs, Lisp_Object *args) |
cacc3e2c RS |
3485 | { |
3486 | if (NILP (args[0])) | |
3487 | { | |
3488 | message (0); | |
3489 | return Qnil; | |
3490 | } | |
3491 | else | |
3492 | { | |
3493 | register Lisp_Object val; | |
3494 | val = Fformat (nargs, args); | |
f8250f01 | 3495 | #ifdef HAVE_MENUS |
0ae83348 EZ |
3496 | /* The MS-DOS frames support popup menus even though they are |
3497 | not FRAME_WINDOW_P. */ | |
3498 | if (FRAME_WINDOW_P (XFRAME (selected_frame)) | |
3499 | || FRAME_MSDOS_P (XFRAME (selected_frame))) | |
cacc3e2c | 3500 | { |
f838ed7b | 3501 | Lisp_Object pane, menu; |
cacc3e2c RS |
3502 | struct gcpro gcpro1; |
3503 | pane = Fcons (Fcons (build_string ("OK"), Qt), Qnil); | |
3504 | GCPRO1 (pane); | |
3505 | menu = Fcons (val, pane); | |
f838ed7b | 3506 | Fx_popup_dialog (Qt, menu, Qt); |
cacc3e2c RS |
3507 | UNGCPRO; |
3508 | return val; | |
3509 | } | |
0ae83348 | 3510 | #endif /* HAVE_MENUS */ |
cacc3e2c | 3511 | /* Copy the data so that it won't move when we GC. */ |
d5db4077 | 3512 | if (SBYTES (val) > message_length) |
cacc3e2c | 3513 | { |
38182d90 PE |
3514 | ptrdiff_t new_length = SBYTES (val) + 80; |
3515 | message_text = xrealloc (message_text, new_length); | |
3516 | message_length = new_length; | |
cacc3e2c | 3517 | } |
72af86bd | 3518 | memcpy (message_text, SDATA (val), SBYTES (val)); |
d5db4077 | 3519 | message2 (message_text, SBYTES (val), |
d13a8480 | 3520 | STRING_MULTIBYTE (val)); |
cacc3e2c | 3521 | return val; |
cacc3e2c RS |
3522 | } |
3523 | } | |
f8250f01 | 3524 | |
cacc3e2c | 3525 | DEFUN ("message-or-box", Fmessage_or_box, Smessage_or_box, 1, MANY, 0, |
7ee72033 | 3526 | doc: /* Display a message in a dialog box or in the echo area. |
a1f17501 PJ |
3527 | If this command was invoked with the mouse, use a dialog box if |
3528 | `use-dialog-box' is non-nil. | |
3529 | Otherwise, use the echo area. | |
3530 | The first argument is a format control string, and the rest are data | |
3531 | to be formatted under control of the string. See `format' for details. | |
3532 | ||
fa056b08 KS |
3533 | If the first argument is nil or the empty string, clear any existing |
3534 | message; let the minibuffer contents show. | |
4bfbe194 | 3535 | |
867b9600 | 3536 | usage: (message-or-box FORMAT-STRING &rest ARGS) */) |
f66c7cf8 | 3537 | (ptrdiff_t nargs, Lisp_Object *args) |
cacc3e2c | 3538 | { |
f8250f01 | 3539 | #ifdef HAVE_MENUS |
5920df33 | 3540 | if ((NILP (last_nonmenu_event) || CONSP (last_nonmenu_event)) |
c01fbf95 | 3541 | && use_dialog_box) |
0a56ee6b | 3542 | return Fmessage_box (nargs, args); |
cacc3e2c RS |
3543 | #endif |
3544 | return Fmessage (nargs, args); | |
3545 | } | |
3546 | ||
a7ca3326 | 3547 | DEFUN ("current-message", Fcurrent_message, Scurrent_message, 0, 0, 0, |
7ee72033 | 3548 | doc: /* Return the string currently displayed in the echo area, or nil if none. */) |
5842a27b | 3549 | (void) |
b14dda8a | 3550 | { |
0634a78e | 3551 | return current_message (); |
b14dda8a RS |
3552 | } |
3553 | ||
2d9811c4 | 3554 | |
d2936d21 | 3555 | DEFUN ("propertize", Fpropertize, Spropertize, 1, MANY, 0, |
7ee72033 | 3556 | doc: /* Return a copy of STRING with text properties added. |
a1f17501 PJ |
3557 | First argument is the string to copy. |
3558 | Remaining arguments form a sequence of PROPERTY VALUE pairs for text | |
4bfbe194 MB |
3559 | properties to add to the result. |
3560 | usage: (propertize STRING &rest PROPERTIES) */) | |
f66c7cf8 | 3561 | (ptrdiff_t nargs, Lisp_Object *args) |
2d9811c4 GM |
3562 | { |
3563 | Lisp_Object properties, string; | |
3564 | struct gcpro gcpro1, gcpro2; | |
f66c7cf8 | 3565 | ptrdiff_t i; |
2d9811c4 GM |
3566 | |
3567 | /* Number of args must be odd. */ | |
c5101a77 | 3568 | if ((nargs & 1) == 0) |
2d9811c4 GM |
3569 | error ("Wrong number of arguments"); |
3570 | ||
3571 | properties = string = Qnil; | |
3572 | GCPRO2 (properties, string); | |
34a7a267 | 3573 | |
2d9811c4 | 3574 | /* First argument must be a string. */ |
b7826503 | 3575 | CHECK_STRING (args[0]); |
2d9811c4 GM |
3576 | string = Fcopy_sequence (args[0]); |
3577 | ||
3578 | for (i = 1; i < nargs; i += 2) | |
9b7a2369 | 3579 | properties = Fcons (args[i], Fcons (args[i + 1], properties)); |
2d9811c4 GM |
3580 | |
3581 | Fadd_text_properties (make_number (0), | |
d5db4077 | 3582 | make_number (SCHARS (string)), |
2d9811c4 GM |
3583 | properties, string); |
3584 | RETURN_UNGCPRO (string); | |
3585 | } | |
3586 | ||
a7ca3326 | 3587 | DEFUN ("format", Fformat, Sformat, 1, MANY, 0, |
867b9600 JL |
3588 | doc: /* Format a string out of a format-string and arguments. |
3589 | The first argument is a format control string. | |
a1f17501 | 3590 | The other arguments are substituted into it to make the result, a string. |
575b782f CY |
3591 | |
3592 | The format control string may contain %-sequences meaning to substitute | |
3593 | the next available argument: | |
3594 | ||
a1f17501 PJ |
3595 | %s means print a string argument. Actually, prints any object, with `princ'. |
3596 | %d means print as number in decimal (%o octal, %x hex). | |
3597 | %X is like %x, but uses upper case. | |
3598 | %e means print a number in exponential notation. | |
3599 | %f means print a number in decimal-point notation. | |
3600 | %g means print a number in exponential notation | |
3601 | or decimal-point notation, whichever uses fewer characters. | |
3602 | %c means print a number as a single character. | |
3603 | %S means print any object as an s-expression (using `prin1'). | |
575b782f CY |
3604 | |
3605 | The argument used for %d, %o, %x, %e, %f, %g or %c must be a number. | |
4bfbe194 MB |
3606 | Use %% to put a single % into the output. |
3607 | ||
575b782f CY |
3608 | A %-sequence may contain optional flag, width, and precision |
3609 | specifiers, as follows: | |
3610 | ||
3611 | %<flags><width><precision>character | |
3612 | ||
3613 | where flags is [+ #-0]+, width is [0-9]+, and precision is .[0-9]+ | |
3614 | ||
3615 | The + flag character inserts a + before any positive number, while a | |
3616 | space inserts a space before any positive number; these flags only | |
3617 | affect %d, %e, %f, and %g sequences, and the + flag takes precedence. | |
3618 | The # flag means to use an alternate display form for %o, %x, %X, %e, | |
3619 | %f, and %g sequences. The - and 0 flags affect the width specifier, | |
3620 | as described below. | |
3621 | ||
3622 | The width specifier supplies a lower limit for the length of the | |
3623 | printed representation. The padding, if any, normally goes on the | |
3624 | left, but it goes on the right if the - flag is present. The padding | |
3625 | character is normally a space, but it is 0 if the 0 flag is present. | |
a9ab721e LMI |
3626 | The 0 flag is ignored if the - flag is present, or the format sequence |
3627 | is something other than %d, %e, %f, and %g. | |
575b782f CY |
3628 | |
3629 | For %e, %f, and %g sequences, the number after the "." in the | |
3630 | precision specifier says how many decimal places to show; if zero, the | |
3631 | decimal point itself is omitted. For %s and %S, the precision | |
3632 | specifier truncates the string to the given width. | |
f555f8cf | 3633 | |
4bfbe194 | 3634 | usage: (format STRING &rest OBJECTS) */) |
f66c7cf8 | 3635 | (ptrdiff_t nargs, Lisp_Object *args) |
35692fe0 | 3636 | { |
f66c7cf8 | 3637 | ptrdiff_t n; /* The number of the next arg to substitute */ |
37910ab2 PE |
3638 | char initial_buffer[4000]; |
3639 | char *buf = initial_buffer; | |
d311d28c PE |
3640 | ptrdiff_t bufsize = sizeof initial_buffer; |
3641 | ptrdiff_t max_bufsize = STRING_BYTES_BOUND + 1; | |
37910ab2 PE |
3642 | char *p; |
3643 | Lisp_Object buf_save_value IF_LINT (= {0}); | |
e7f8264d | 3644 | register char *format, *end, *format_start; |
d311d28c | 3645 | ptrdiff_t formatlen, nchars; |
37910ab2 PE |
3646 | /* Nonzero if the format is multibyte. */ |
3647 | int multibyte_format = 0; | |
1f24f4fd RS |
3648 | /* Nonzero if the output should be a multibyte string, |
3649 | which is true if any of the inputs is one. */ | |
3650 | int multibyte = 0; | |
8f2917e4 KH |
3651 | /* When we make a multibyte string, we must pay attention to the |
3652 | byte combining problem, i.e., a byte may be combined with a | |
3b59c351 | 3653 | multibyte character of the previous string. This flag tells if we |
8f2917e4 KH |
3654 | must consider such a situation or not. */ |
3655 | int maybe_combine_byte; | |
8d6179dc | 3656 | Lisp_Object val; |
d147ee84 | 3657 | int arg_intervals = 0; |
7e2c051b | 3658 | USE_SAFE_ALLOCA; |
d147ee84 RS |
3659 | |
3660 | /* discarded[I] is 1 if byte I of the format | |
3661 | string was not copied into the output. | |
3662 | It is 2 if byte I was not the first byte of its character. */ | |
37910ab2 | 3663 | char *discarded; |
d147ee84 RS |
3664 | |
3665 | /* Each element records, for one argument, | |
3666 | the start and end bytepos in the output string, | |
37910ab2 | 3667 | whether the argument has been converted to string (e.g., due to "%S"), |
d147ee84 RS |
3668 | and whether the argument is a string with intervals. |
3669 | info[0] is unused. Unused elements have -1 for start. */ | |
5e6d5493 GM |
3670 | struct info |
3671 | { | |
d311d28c | 3672 | ptrdiff_t start, end; |
37910ab2 PE |
3673 | int converted_to_string; |
3674 | int intervals; | |
5e6d5493 | 3675 | } *info = 0; |
1f24f4fd | 3676 | |
35692fe0 JB |
3677 | /* It should not be necessary to GCPRO ARGS, because |
3678 | the caller in the interpreter should take care of that. */ | |
3679 | ||
37910ab2 PE |
3680 | CHECK_STRING (args[0]); |
3681 | format_start = SSDATA (args[0]); | |
3682 | formatlen = SBYTES (args[0]); | |
3683 | ||
3684 | /* Allocate the info and discarded tables. */ | |
3685 | { | |
f66c7cf8 | 3686 | ptrdiff_t i; |
37910ab2 | 3687 | if ((SIZE_MAX - formatlen) / sizeof (struct info) <= nargs) |
531b0165 | 3688 | memory_full (SIZE_MAX); |
98c6f1e3 | 3689 | info = SAFE_ALLOCA ((nargs + 1) * sizeof *info + formatlen); |
37910ab2 PE |
3690 | discarded = (char *) &info[nargs + 1]; |
3691 | for (i = 0; i < nargs + 1; i++) | |
3692 | { | |
3693 | info[i].start = -1; | |
3694 | info[i].intervals = info[i].converted_to_string = 0; | |
3695 | } | |
3696 | memset (discarded, 0, formatlen); | |
3697 | } | |
3698 | ||
e781c49e RS |
3699 | /* Try to determine whether the result should be multibyte. |
3700 | This is not always right; sometimes the result needs to be multibyte | |
3701 | because of an object that we will pass through prin1, | |
3702 | and in that case, we won't know it here. */ | |
37910ab2 PE |
3703 | multibyte_format = STRING_MULTIBYTE (args[0]); |
3704 | multibyte = multibyte_format; | |
3705 | for (n = 1; !multibyte && n < nargs; n++) | |
3706 | if (STRINGP (args[n]) && STRING_MULTIBYTE (args[n])) | |
3707 | multibyte = 1; | |
67965a98 | 3708 | |
e781c49e | 3709 | /* If we start out planning a unibyte result, |
37910ab2 | 3710 | then discover it has to be multibyte, we jump back to retry. */ |
e781c49e RS |
3711 | retry: |
3712 | ||
37910ab2 PE |
3713 | p = buf; |
3714 | nchars = 0; | |
3715 | n = 0; | |
d147ee84 | 3716 | |
37910ab2 PE |
3717 | /* Scan the format and store result in BUF. */ |
3718 | format = format_start; | |
3719 | end = format + formatlen; | |
3720 | maybe_combine_byte = 0; | |
35692fe0 | 3721 | |
35692fe0 | 3722 | while (format != end) |
37910ab2 PE |
3723 | { |
3724 | /* The values of N and FORMAT when the loop body is entered. */ | |
f66c7cf8 | 3725 | ptrdiff_t n0 = n; |
37910ab2 | 3726 | char *format0 = format; |
35692fe0 | 3727 | |
37910ab2 | 3728 | /* Bytes needed to represent the output of this conversion. */ |
d311d28c | 3729 | ptrdiff_t convbytes; |
537dfb13 | 3730 | |
37910ab2 PE |
3731 | if (*format == '%') |
3732 | { | |
3733 | /* General format specifications look like | |
a432bfe5 | 3734 | |
37910ab2 | 3735 | '%' [flags] [field-width] [precision] format |
a432bfe5 | 3736 | |
37910ab2 | 3737 | where |
a432bfe5 | 3738 | |
37910ab2 PE |
3739 | flags ::= [-+0# ]+ |
3740 | field-width ::= [0-9]+ | |
3741 | precision ::= '.' [0-9]* | |
a432bfe5 | 3742 | |
37910ab2 PE |
3743 | If a field-width is specified, it specifies to which width |
3744 | the output should be padded with blanks, if the output | |
3745 | string is shorter than field-width. | |
a432bfe5 | 3746 | |
37910ab2 PE |
3747 | If precision is specified, it specifies the number of |
3748 | digits to print after the '.' for floats, or the max. | |
3749 | number of chars to print from a string. */ | |
a432bfe5 | 3750 | |
37910ab2 PE |
3751 | int minus_flag = 0; |
3752 | int plus_flag = 0; | |
3753 | int space_flag = 0; | |
3754 | int sharp_flag = 0; | |
3755 | int zero_flag = 0; | |
d311d28c | 3756 | ptrdiff_t field_width; |
37910ab2 PE |
3757 | int precision_given; |
3758 | uintmax_t precision = UINTMAX_MAX; | |
3759 | char *num_end; | |
3760 | char conversion; | |
a432bfe5 | 3761 | |
37910ab2 PE |
3762 | while (1) |
3763 | { | |
3764 | switch (*++format) | |
3765 | { | |
3766 | case '-': minus_flag = 1; continue; | |
3767 | case '+': plus_flag = 1; continue; | |
3768 | case ' ': space_flag = 1; continue; | |
3769 | case '#': sharp_flag = 1; continue; | |
3770 | case '0': zero_flag = 1; continue; | |
3771 | } | |
3772 | break; | |
3773 | } | |
35692fe0 | 3774 | |
37910ab2 PE |
3775 | /* Ignore flags when sprintf ignores them. */ |
3776 | space_flag &= ~ plus_flag; | |
3777 | zero_flag &= ~ minus_flag; | |
1f24f4fd | 3778 | |
35692fe0 | 3779 | { |
37910ab2 PE |
3780 | uintmax_t w = strtoumax (format, &num_end, 10); |
3781 | if (max_bufsize <= w) | |
3782 | string_overflow (); | |
3783 | field_width = w; | |
35692fe0 | 3784 | } |
37910ab2 PE |
3785 | precision_given = *num_end == '.'; |
3786 | if (precision_given) | |
3787 | precision = strtoumax (num_end + 1, &num_end, 10); | |
3788 | format = num_end; | |
3789 | ||
3790 | if (format == end) | |
3791 | error ("Format string ends in middle of format specifier"); | |
3792 | ||
3793 | memset (&discarded[format0 - format_start], 1, format - format0); | |
3794 | conversion = *format; | |
3795 | if (conversion == '%') | |
7812ba2d | 3796 | goto copy_char; |
d147ee84 | 3797 | discarded[format - format_start] = 1; |
1f24f4fd | 3798 | format++; |
fb893977 | 3799 | |
37910ab2 PE |
3800 | ++n; |
3801 | if (! (n < nargs)) | |
3802 | error ("Not enough arguments for format string"); | |
3803 | ||
3804 | /* For 'S', prin1 the argument, and then treat like 's'. | |
3805 | For 's', princ any argument that is not a string or | |
3806 | symbol. But don't do this conversion twice, which might | |
3807 | happen after retrying. */ | |
3808 | if ((conversion == 'S' | |
3809 | || (conversion == 's' | |
3810 | && ! STRINGP (args[n]) && ! SYMBOLP (args[n])))) | |
f555f8cf | 3811 | { |
37910ab2 | 3812 | if (! info[n].converted_to_string) |
f555f8cf | 3813 | { |
37910ab2 PE |
3814 | Lisp_Object noescape = conversion == 'S' ? Qnil : Qt; |
3815 | args[n] = Fprin1_to_string (args[n], noescape); | |
3816 | info[n].converted_to_string = 1; | |
3817 | if (STRING_MULTIBYTE (args[n]) && ! multibyte) | |
3818 | { | |
3819 | multibyte = 1; | |
3820 | goto retry; | |
3821 | } | |
f555f8cf | 3822 | } |
37910ab2 | 3823 | conversion = 's'; |
f555f8cf | 3824 | } |
37910ab2 PE |
3825 | else if (conversion == 'c') |
3826 | { | |
3827 | if (FLOATP (args[n])) | |
3828 | { | |
3829 | double d = XFLOAT_DATA (args[n]); | |
3830 | args[n] = make_number (FIXNUM_OVERFLOW_P (d) ? -1 : d); | |
3831 | } | |
f555f8cf | 3832 | |
37910ab2 PE |
3833 | if (INTEGERP (args[n]) && ! ASCII_CHAR_P (XINT (args[n]))) |
3834 | { | |
3835 | if (!multibyte) | |
3836 | { | |
3837 | multibyte = 1; | |
3838 | goto retry; | |
3839 | } | |
3840 | args[n] = Fchar_to_string (args[n]); | |
3841 | info[n].converted_to_string = 1; | |
3842 | } | |
f555f8cf | 3843 | |
37910ab2 PE |
3844 | if (info[n].converted_to_string) |
3845 | conversion = 's'; | |
3846 | zero_flag = 0; | |
d147ee84 | 3847 | } |
35692fe0 | 3848 | |
37910ab2 | 3849 | if (SYMBOLP (args[n])) |
1f24f4fd | 3850 | { |
37910ab2 PE |
3851 | args[n] = SYMBOL_NAME (args[n]); |
3852 | if (STRING_MULTIBYTE (args[n]) && ! multibyte) | |
3853 | { | |
3854 | multibyte = 1; | |
3855 | goto retry; | |
3856 | } | |
1f24f4fd RS |
3857 | } |
3858 | ||
37910ab2 | 3859 | if (conversion == 's') |
1f24f4fd | 3860 | { |
ac42d7b9 KG |
3861 | /* handle case (precision[n] >= 0) */ |
3862 | ||
d311d28c PE |
3863 | ptrdiff_t width, padding, nbytes; |
3864 | ptrdiff_t nchars_string; | |
ac42d7b9 | 3865 | |
d311d28c PE |
3866 | ptrdiff_t prec = -1; |
3867 | if (precision_given && precision <= TYPE_MAXIMUM (ptrdiff_t)) | |
37910ab2 PE |
3868 | prec = precision; |
3869 | ||
ac42d7b9 KG |
3870 | /* lisp_string_width ignores a precision of 0, but GNU |
3871 | libc functions print 0 characters when the precision | |
3872 | is 0. Imitate libc behavior here. Changing | |
3873 | lisp_string_width is the right thing, and will be | |
3874 | done, but meanwhile we work with it. */ | |
3875 | ||
37910ab2 | 3876 | if (prec == 0) |
ac42d7b9 | 3877 | width = nchars_string = nbytes = 0; |
ac42d7b9 | 3878 | else |
37910ab2 | 3879 | { |
d311d28c | 3880 | ptrdiff_t nch, nby; |
37910ab2 PE |
3881 | width = lisp_string_width (args[n], prec, &nch, &nby); |
3882 | if (prec < 0) | |
3883 | { | |
3884 | nchars_string = SCHARS (args[n]); | |
3885 | nbytes = SBYTES (args[n]); | |
3886 | } | |
3887 | else | |
3888 | { | |
3889 | nchars_string = nch; | |
3890 | nbytes = nby; | |
3891 | } | |
ac42d7b9 | 3892 | } |
25c9e7fb | 3893 | |
37910ab2 PE |
3894 | convbytes = nbytes; |
3895 | if (convbytes && multibyte && ! STRING_MULTIBYTE (args[n])) | |
3896 | convbytes = count_size_as_multibyte (SDATA (args[n]), nbytes); | |
1f24f4fd | 3897 | |
37910ab2 | 3898 | padding = width < field_width ? field_width - width : 0; |
ac42d7b9 | 3899 | |
37910ab2 PE |
3900 | if (max_bufsize - padding <= convbytes) |
3901 | string_overflow (); | |
3902 | convbytes += padding; | |
3903 | if (convbytes <= buf + bufsize - p) | |
3904 | { | |
3905 | if (! minus_flag) | |
3906 | { | |
3907 | memset (p, ' ', padding); | |
3908 | p += padding; | |
3909 | nchars += padding; | |
3910 | } | |
ac42d7b9 | 3911 | |
37910ab2 PE |
3912 | if (p > buf |
3913 | && multibyte | |
3914 | && !ASCII_BYTE_P (*((unsigned char *) p - 1)) | |
3915 | && STRING_MULTIBYTE (args[n]) | |
3916 | && !CHAR_HEAD_P (SREF (args[n], 0))) | |
3917 | maybe_combine_byte = 1; | |
1f24f4fd | 3918 | |
37910ab2 PE |
3919 | p += copy_text (SDATA (args[n]), (unsigned char *) p, |
3920 | nbytes, | |
3921 | STRING_MULTIBYTE (args[n]), multibyte); | |
8f2c9ed8 | 3922 | |
37910ab2 PE |
3923 | info[n].start = nchars; |
3924 | nchars += nchars_string; | |
3925 | info[n].end = nchars; | |
3926 | ||
3927 | if (minus_flag) | |
3928 | { | |
3929 | memset (p, ' ', padding); | |
3930 | p += padding; | |
3931 | nchars += padding; | |
3932 | } | |
5e6d5493 | 3933 | |
37910ab2 PE |
3934 | /* If this argument has text properties, record where |
3935 | in the result string it appears. */ | |
3936 | if (STRING_INTERVALS (args[n])) | |
3937 | info[n].intervals = arg_intervals = 1; | |
3938 | ||
3939 | continue; | |
3940 | } | |
1f24f4fd | 3941 | } |
37910ab2 PE |
3942 | else if (! (conversion == 'c' || conversion == 'd' |
3943 | || conversion == 'e' || conversion == 'f' | |
3944 | || conversion == 'g' || conversion == 'i' | |
3945 | || conversion == 'o' || conversion == 'x' | |
3946 | || conversion == 'X')) | |
3947 | error ("Invalid format operation %%%c", | |
3948 | STRING_CHAR ((unsigned char *) format - 1)); | |
3949 | else if (! (INTEGERP (args[n]) || FLOATP (args[n]))) | |
3950 | error ("Format specifier doesn't match argument type"); | |
3951 | else | |
1f24f4fd | 3952 | { |
37910ab2 PE |
3953 | enum |
3954 | { | |
3955 | /* Maximum precision for a %f conversion such that the | |
333f9019 | 3956 | trailing output digit might be nonzero. Any precision |
37910ab2 PE |
3957 | larger than this will not yield useful information. */ |
3958 | USEFUL_PRECISION_MAX = | |
3959 | ((1 - DBL_MIN_EXP) | |
3960 | * (FLT_RADIX == 2 || FLT_RADIX == 10 ? 1 | |
3961 | : FLT_RADIX == 16 ? 4 | |
3962 | : -1)), | |
3963 | ||
3964 | /* Maximum number of bytes generated by any format, if | |
81f7c12e | 3965 | precision is no more than USEFUL_PRECISION_MAX. |
37910ab2 PE |
3966 | On all practical hosts, %f is the worst case. */ |
3967 | SPRINTF_BUFSIZE = | |
a81d11a3 PE |
3968 | sizeof "-." + (DBL_MAX_10_EXP + 1) + USEFUL_PRECISION_MAX, |
3969 | ||
3970 | /* Length of pM (that is, of pMd without the | |
3971 | trailing "d"). */ | |
3972 | pMlen = sizeof pMd - 2 | |
37910ab2 PE |
3973 | }; |
3974 | verify (0 < USEFUL_PRECISION_MAX); | |
3975 | ||
3976 | int prec; | |
d311d28c | 3977 | ptrdiff_t padding, sprintf_bytes; |
37910ab2 PE |
3978 | uintmax_t excess_precision, numwidth; |
3979 | uintmax_t leading_zeros = 0, trailing_zeros = 0; | |
3980 | ||
3981 | char sprintf_buf[SPRINTF_BUFSIZE]; | |
3982 | ||
3983 | /* Copy of conversion specification, modified somewhat. | |
3984 | At most three flags F can be specified at once. */ | |
a81d11a3 | 3985 | char convspec[sizeof "%FFF.*d" + pMlen]; |
37910ab2 PE |
3986 | |
3987 | /* Avoid undefined behavior in underlying sprintf. */ | |
3988 | if (conversion == 'd' || conversion == 'i') | |
3989 | sharp_flag = 0; | |
3990 | ||
3991 | /* Create the copy of the conversion specification, with | |
3992 | any width and precision removed, with ".*" inserted, | |
a81d11a3 | 3993 | and with pM inserted for integer formats. */ |
37910ab2 PE |
3994 | { |
3995 | char *f = convspec; | |
3996 | *f++ = '%'; | |
3997 | *f = '-'; f += minus_flag; | |
3998 | *f = '+'; f += plus_flag; | |
3999 | *f = ' '; f += space_flag; | |
4000 | *f = '#'; f += sharp_flag; | |
4001 | *f = '0'; f += zero_flag; | |
4002 | *f++ = '.'; | |
4003 | *f++ = '*'; | |
4004 | if (conversion == 'd' || conversion == 'i' | |
4005 | || conversion == 'o' || conversion == 'x' | |
4006 | || conversion == 'X') | |
4007 | { | |
a81d11a3 PE |
4008 | memcpy (f, pMd, pMlen); |
4009 | f += pMlen; | |
37910ab2 PE |
4010 | zero_flag &= ~ precision_given; |
4011 | } | |
4012 | *f++ = conversion; | |
4013 | *f = '\0'; | |
4014 | } | |
1f24f4fd | 4015 | |
37910ab2 PE |
4016 | prec = -1; |
4017 | if (precision_given) | |
4018 | prec = min (precision, USEFUL_PRECISION_MAX); | |
4019 | ||
4020 | /* Use sprintf to format this number into sprintf_buf. Omit | |
4021 | padding and excess precision, though, because sprintf limits | |
4022 | output length to INT_MAX. | |
4023 | ||
4024 | There are four types of conversion: double, unsigned | |
4025 | char (passed as int), wide signed int, and wide | |
4026 | unsigned int. Treat them separately because the | |
4027 | sprintf ABI is sensitive to which type is passed. Be | |
4028 | careful about integer overflow, NaNs, infinities, and | |
4029 | conversions; for example, the min and max macros are | |
4030 | not suitable here. */ | |
4031 | if (conversion == 'e' || conversion == 'f' || conversion == 'g') | |
4032 | { | |
4033 | double x = (INTEGERP (args[n]) | |
4034 | ? XINT (args[n]) | |
4035 | : XFLOAT_DATA (args[n])); | |
4036 | sprintf_bytes = sprintf (sprintf_buf, convspec, prec, x); | |
4037 | } | |
4038 | else if (conversion == 'c') | |
4039 | { | |
4040 | /* Don't use sprintf here, as it might mishandle prec. */ | |
4041 | sprintf_buf[0] = XINT (args[n]); | |
4042 | sprintf_bytes = prec != 0; | |
4043 | } | |
4044 | else if (conversion == 'd') | |
4045 | { | |
4046 | /* For float, maybe we should use "%1.0f" | |
4047 | instead so it also works for values outside | |
4048 | the integer range. */ | |
a81d11a3 | 4049 | printmax_t x; |
37910ab2 PE |
4050 | if (INTEGERP (args[n])) |
4051 | x = XINT (args[n]); | |
4052 | else | |
4053 | { | |
4054 | double d = XFLOAT_DATA (args[n]); | |
4055 | if (d < 0) | |
4056 | { | |
a81d11a3 | 4057 | x = TYPE_MINIMUM (printmax_t); |
37910ab2 PE |
4058 | if (x < d) |
4059 | x = d; | |
4060 | } | |
4061 | else | |
4062 | { | |
a81d11a3 | 4063 | x = TYPE_MAXIMUM (printmax_t); |
37910ab2 PE |
4064 | if (d < x) |
4065 | x = d; | |
4066 | } | |
4067 | } | |
4068 | sprintf_bytes = sprintf (sprintf_buf, convspec, prec, x); | |
4069 | } | |
0f860bd7 | 4070 | else |
de92d4d4 | 4071 | { |
37910ab2 | 4072 | /* Don't sign-extend for octal or hex printing. */ |
a81d11a3 | 4073 | uprintmax_t x; |
37910ab2 PE |
4074 | if (INTEGERP (args[n])) |
4075 | x = XUINT (args[n]); | |
4076 | else | |
0f860bd7 | 4077 | { |
37910ab2 PE |
4078 | double d = XFLOAT_DATA (args[n]); |
4079 | if (d < 0) | |
4080 | x = 0; | |
4081 | else | |
4082 | { | |
a81d11a3 | 4083 | x = TYPE_MAXIMUM (uprintmax_t); |
37910ab2 PE |
4084 | if (d < x) |
4085 | x = d; | |
4086 | } | |
0f860bd7 | 4087 | } |
37910ab2 PE |
4088 | sprintf_bytes = sprintf (sprintf_buf, convspec, prec, x); |
4089 | } | |
0f860bd7 | 4090 | |
37910ab2 PE |
4091 | /* Now the length of the formatted item is known, except it omits |
4092 | padding and excess precision. Deal with excess precision | |
4093 | first. This happens only when the format specifies | |
4094 | ridiculously large precision. */ | |
4095 | excess_precision = precision - prec; | |
4096 | if (excess_precision) | |
4097 | { | |
4098 | if (conversion == 'e' || conversion == 'f' | |
4099 | || conversion == 'g') | |
ff6e6ac8 | 4100 | { |
37910ab2 PE |
4101 | if ((conversion == 'g' && ! sharp_flag) |
4102 | || ! ('0' <= sprintf_buf[sprintf_bytes - 1] | |
4103 | && sprintf_buf[sprintf_bytes - 1] <= '9')) | |
4104 | excess_precision = 0; | |
ff6e6ac8 | 4105 | else |
37910ab2 PE |
4106 | { |
4107 | if (conversion == 'g') | |
4108 | { | |
4109 | char *dot = strchr (sprintf_buf, '.'); | |
4110 | if (!dot) | |
4111 | excess_precision = 0; | |
4112 | } | |
4113 | } | |
4114 | trailing_zeros = excess_precision; | |
ff6e6ac8 | 4115 | } |
de92d4d4 | 4116 | else |
37910ab2 | 4117 | leading_zeros = excess_precision; |
de92d4d4 | 4118 | } |
1f24f4fd | 4119 | |
37910ab2 PE |
4120 | /* Compute the total bytes needed for this item, including |
4121 | excess precision and padding. */ | |
4122 | numwidth = sprintf_bytes + excess_precision; | |
4123 | padding = numwidth < field_width ? field_width - numwidth : 0; | |
4124 | if (max_bufsize - sprintf_bytes <= excess_precision | |
4125 | || max_bufsize - padding <= numwidth) | |
4126 | string_overflow (); | |
4127 | convbytes = numwidth + padding; | |
4128 | ||
4129 | if (convbytes <= buf + bufsize - p) | |
4130 | { | |
4131 | /* Copy the formatted item from sprintf_buf into buf, | |
4132 | inserting padding and excess-precision zeros. */ | |
4133 | ||
4134 | char *src = sprintf_buf; | |
4135 | char src0 = src[0]; | |
4136 | int exponent_bytes = 0; | |
4137 | int signedp = src0 == '-' || src0 == '+' || src0 == ' '; | |
4138 | int significand_bytes; | |
172418ad AS |
4139 | if (zero_flag |
4140 | && ((src[signedp] >= '0' && src[signedp] <= '9') | |
4141 | || (src[signedp] >= 'a' && src[signedp] <= 'f') | |
4142 | || (src[signedp] >= 'A' && src[signedp] <= 'F'))) | |
37910ab2 PE |
4143 | { |
4144 | leading_zeros += padding; | |
4145 | padding = 0; | |
4146 | } | |
4147 | ||
4148 | if (excess_precision | |
4149 | && (conversion == 'e' || conversion == 'g')) | |
4150 | { | |
4151 | char *e = strchr (src, 'e'); | |
4152 | if (e) | |
4153 | exponent_bytes = src + sprintf_bytes - e; | |
4154 | } | |
4155 | ||
4156 | if (! minus_flag) | |
4157 | { | |
4158 | memset (p, ' ', padding); | |
4159 | p += padding; | |
4160 | nchars += padding; | |
4161 | } | |
4162 | ||
4163 | *p = src0; | |
4164 | src += signedp; | |
4165 | p += signedp; | |
4166 | memset (p, '0', leading_zeros); | |
4167 | p += leading_zeros; | |
4168 | significand_bytes = sprintf_bytes - signedp - exponent_bytes; | |
4169 | memcpy (p, src, significand_bytes); | |
4170 | p += significand_bytes; | |
4171 | src += significand_bytes; | |
4172 | memset (p, '0', trailing_zeros); | |
4173 | p += trailing_zeros; | |
4174 | memcpy (p, src, exponent_bytes); | |
4175 | p += exponent_bytes; | |
4176 | ||
4177 | info[n].start = nchars; | |
4178 | nchars += leading_zeros + sprintf_bytes + trailing_zeros; | |
4179 | info[n].end = nchars; | |
4180 | ||
4181 | if (minus_flag) | |
4182 | { | |
4183 | memset (p, ' ', padding); | |
4184 | p += padding; | |
4185 | nchars += padding; | |
4186 | } | |
4187 | ||
4188 | continue; | |
4189 | } | |
4190 | } | |
4191 | } | |
4192 | else | |
4193 | copy_char: | |
4194 | { | |
4195 | /* Copy a single character from format to buf. */ | |
4196 | ||
4197 | char *src = format; | |
4198 | unsigned char str[MAX_MULTIBYTE_LENGTH]; | |
4199 | ||
4200 | if (multibyte_format) | |
4201 | { | |
4202 | /* Copy a whole multibyte character. */ | |
8f2917e4 | 4203 | if (p > buf |
25aa5d64 | 4204 | && !ASCII_BYTE_P (*((unsigned char *) p - 1)) |
37910ab2 | 4205 | && !CHAR_HEAD_P (*format)) |
8f2917e4 | 4206 | maybe_combine_byte = 1; |
37910ab2 PE |
4207 | |
4208 | do | |
4209 | format++; | |
4210 | while (! CHAR_HEAD_P (*format)); | |
4211 | ||
a02719a3 | 4212 | convbytes = format - src; |
7812ba2d | 4213 | memset (&discarded[src + 1 - format_start], 2, convbytes - 1); |
37910ab2 PE |
4214 | } |
4215 | else | |
4216 | { | |
4217 | unsigned char uc = *format++; | |
4218 | if (! multibyte || ASCII_BYTE_P (uc)) | |
4219 | convbytes = 1; | |
9a599130 | 4220 | else |
37910ab2 PE |
4221 | { |
4222 | int c = BYTE8_TO_CHAR (uc); | |
4223 | convbytes = CHAR_STRING (c, str); | |
4224 | src = (char *) str; | |
4225 | } | |
1f24f4fd | 4226 | } |
d147ee84 | 4227 | |
37910ab2 | 4228 | if (convbytes <= buf + bufsize - p) |
d147ee84 | 4229 | { |
37910ab2 PE |
4230 | memcpy (p, src, convbytes); |
4231 | p += convbytes; | |
4232 | nchars++; | |
4233 | continue; | |
d147ee84 | 4234 | } |
7df74da6 | 4235 | } |
1f24f4fd | 4236 | |
37910ab2 PE |
4237 | /* There wasn't enough room to store this conversion or single |
4238 | character. CONVBYTES says how much room is needed. Allocate | |
4239 | enough room (and then some) and do it again. */ | |
4240 | { | |
c9f8d652 | 4241 | ptrdiff_t used = p - buf; |
37910ab2 PE |
4242 | |
4243 | if (max_bufsize - used < convbytes) | |
4244 | string_overflow (); | |
4245 | bufsize = used + convbytes; | |
4246 | bufsize = bufsize < max_bufsize / 2 ? bufsize * 2 : max_bufsize; | |
4247 | ||
4248 | if (buf == initial_buffer) | |
4249 | { | |
4250 | buf = xmalloc (bufsize); | |
4251 | sa_must_free = 1; | |
4252 | buf_save_value = make_save_value (buf, 0); | |
4253 | record_unwind_protect (safe_alloca_unwind, buf_save_value); | |
4254 | memcpy (buf, initial_buffer, used); | |
4255 | } | |
4256 | else | |
4257 | XSAVE_VALUE (buf_save_value)->pointer = buf = xrealloc (buf, bufsize); | |
4258 | ||
4259 | p = buf + used; | |
4260 | } | |
4261 | ||
4262 | format = format0; | |
4263 | n = n0; | |
1f24f4fd RS |
4264 | } |
4265 | ||
37910ab2 | 4266 | if (bufsize < p - buf) |
a432bfe5 GM |
4267 | abort (); |
4268 | ||
8f2917e4 | 4269 | if (maybe_combine_byte) |
e7f8264d | 4270 | nchars = multibyte_chars_in_text ((unsigned char *) buf, p - buf); |
5f75e666 | 4271 | val = make_specified_string (buf, nchars, p - buf, multibyte); |
8d6179dc | 4272 | |
1f24f4fd | 4273 | /* If we allocated BUF with malloc, free it too. */ |
e65837df | 4274 | SAFE_FREE (); |
35692fe0 | 4275 | |
5e6d5493 GM |
4276 | /* If the format string has text properties, or any of the string |
4277 | arguments has text properties, set up text properties of the | |
4278 | result string. */ | |
34a7a267 | 4279 | |
d147ee84 | 4280 | if (STRING_INTERVALS (args[0]) || arg_intervals) |
5e6d5493 GM |
4281 | { |
4282 | Lisp_Object len, new_len, props; | |
4283 | struct gcpro gcpro1; | |
34a7a267 | 4284 | |
5e6d5493 | 4285 | /* Add text properties from the format string. */ |
d5db4077 | 4286 | len = make_number (SCHARS (args[0])); |
5e6d5493 GM |
4287 | props = text_property_list (args[0], make_number (0), len, Qnil); |
4288 | GCPRO1 (props); | |
34a7a267 | 4289 | |
5e6d5493 GM |
4290 | if (CONSP (props)) |
4291 | { | |
d311d28c PE |
4292 | ptrdiff_t bytepos = 0, position = 0, translated = 0; |
4293 | ptrdiff_t argn = 1; | |
d147ee84 RS |
4294 | Lisp_Object list; |
4295 | ||
4296 | /* Adjust the bounds of each text property | |
4297 | to the proper start and end in the output string. */ | |
d147ee84 | 4298 | |
15fad037 KS |
4299 | /* Put the positions in PROPS in increasing order, so that |
4300 | we can do (effectively) one scan through the position | |
4301 | space of the format string. */ | |
4302 | props = Fnreverse (props); | |
4303 | ||
4304 | /* BYTEPOS is the byte position in the format string, | |
d147ee84 RS |
4305 | POSITION is the untranslated char position in it, |
4306 | TRANSLATED is the translated char position in BUF, | |
4307 | and ARGN is the number of the next arg we will come to. */ | |
4308 | for (list = props; CONSP (list); list = XCDR (list)) | |
4309 | { | |
f3ce1df8 | 4310 | Lisp_Object item; |
d311d28c | 4311 | ptrdiff_t pos; |
d147ee84 RS |
4312 | |
4313 | item = XCAR (list); | |
4314 | ||
4315 | /* First adjust the property start position. */ | |
4316 | pos = XINT (XCAR (item)); | |
4317 | ||
4318 | /* Advance BYTEPOS, POSITION, TRANSLATED and ARGN | |
4319 | up to this position. */ | |
4320 | for (; position < pos; bytepos++) | |
4321 | { | |
4322 | if (! discarded[bytepos]) | |
4323 | position++, translated++; | |
4324 | else if (discarded[bytepos] == 1) | |
4325 | { | |
4326 | position++; | |
4327 | if (translated == info[argn].start) | |
4328 | { | |
4329 | translated += info[argn].end - info[argn].start; | |
4330 | argn++; | |
4331 | } | |
4332 | } | |
4333 | } | |
4334 | ||
4335 | XSETCAR (item, make_number (translated)); | |
4336 | ||
4337 | /* Likewise adjust the property end position. */ | |
4338 | pos = XINT (XCAR (XCDR (item))); | |
4339 | ||
d40ec4a0 | 4340 | for (; position < pos; bytepos++) |
d147ee84 RS |
4341 | { |
4342 | if (! discarded[bytepos]) | |
4343 | position++, translated++; | |
4344 | else if (discarded[bytepos] == 1) | |
4345 | { | |
4346 | position++; | |
4347 | if (translated == info[argn].start) | |
4348 | { | |
4349 | translated += info[argn].end - info[argn].start; | |
4350 | argn++; | |
4351 | } | |
4352 | } | |
4353 | } | |
4354 | ||
4355 | XSETCAR (XCDR (item), make_number (translated)); | |
4356 | } | |
4357 | ||
5e6d5493 GM |
4358 | add_text_properties_from_list (val, props, make_number (0)); |
4359 | } | |
4360 | ||
4361 | /* Add text properties from arguments. */ | |
d147ee84 | 4362 | if (arg_intervals) |
5e6d5493 | 4363 | for (n = 1; n < nargs; ++n) |
d147ee84 | 4364 | if (info[n].intervals) |
5e6d5493 | 4365 | { |
d5db4077 | 4366 | len = make_number (SCHARS (args[n])); |
5e6d5493 GM |
4367 | new_len = make_number (info[n].end - info[n].start); |
4368 | props = text_property_list (args[n], make_number (0), len, Qnil); | |
e398c61c CY |
4369 | props = extend_property_ranges (props, new_len); |
4370 | /* If successive arguments have properties, be sure that | |
be17069b KH |
4371 | the value of `composition' property be the copy. */ |
4372 | if (n > 1 && info[n - 1].end) | |
4373 | make_composition_value_copy (props); | |
5e6d5493 GM |
4374 | add_text_properties_from_list (val, props, |
4375 | make_number (info[n].start)); | |
4376 | } | |
4377 | ||
4378 | UNGCPRO; | |
4379 | } | |
4380 | ||
8d6179dc | 4381 | return val; |
35692fe0 JB |
4382 | } |
4383 | ||
35692fe0 | 4384 | Lisp_Object |
a8fe7202 | 4385 | format2 (const char *string1, Lisp_Object arg0, Lisp_Object arg1) |
d40dc1d0 RS |
4386 | { |
4387 | Lisp_Object args[3]; | |
d40dc1d0 RS |
4388 | args[0] = build_string (string1); |
4389 | args[1] = arg0; | |
4390 | args[2] = arg1; | |
4391 | return Fformat (3, args); | |
35692fe0 JB |
4392 | } |
4393 | \f | |
4394 | DEFUN ("char-equal", Fchar_equal, Schar_equal, 2, 2, 0, | |
7ee72033 | 4395 | doc: /* Return t if two characters match, optionally ignoring case. |
a1f17501 | 4396 | Both arguments must be characters (i.e. integers). |
7ee72033 | 4397 | Case is ignored if `case-fold-search' is non-nil in the current buffer. */) |
5842a27b | 4398 | (register Lisp_Object c1, Lisp_Object c2) |
35692fe0 | 4399 | { |
1b5d98bb | 4400 | int i1, i2; |
253c3c82 | 4401 | /* Check they're chars, not just integers, otherwise we could get array |
5da9919f | 4402 | bounds violations in downcase. */ |
253c3c82 SM |
4403 | CHECK_CHARACTER (c1); |
4404 | CHECK_CHARACTER (c2); | |
35692fe0 | 4405 | |
1b5d98bb | 4406 | if (XINT (c1) == XINT (c2)) |
35692fe0 | 4407 | return Qt; |
4b4deea2 | 4408 | if (NILP (BVAR (current_buffer, case_fold_search))) |
1b5d98bb RS |
4409 | return Qnil; |
4410 | ||
e5112ecb | 4411 | i1 = XFASTINT (c1); |
4b4deea2 | 4412 | if (NILP (BVAR (current_buffer, enable_multibyte_characters)) |
e5112ecb KH |
4413 | && ! ASCII_CHAR_P (i1)) |
4414 | { | |
4415 | MAKE_CHAR_MULTIBYTE (i1); | |
4416 | } | |
4417 | i2 = XFASTINT (c2); | |
4b4deea2 | 4418 | if (NILP (BVAR (current_buffer, enable_multibyte_characters)) |
e5112ecb KH |
4419 | && ! ASCII_CHAR_P (i2)) |
4420 | { | |
4421 | MAKE_CHAR_MULTIBYTE (i2); | |
4422 | } | |
0da09c43 | 4423 | return (downcase (i1) == downcase (i2) ? Qt : Qnil); |
35692fe0 | 4424 | } |
b229b8d1 RS |
4425 | \f |
4426 | /* Transpose the markers in two regions of the current buffer, and | |
4427 | adjust the ones between them if necessary (i.e.: if the regions | |
4428 | differ in size). | |
4429 | ||
ec1c14f6 RS |
4430 | START1, END1 are the character positions of the first region. |
4431 | START1_BYTE, END1_BYTE are the byte positions. | |
4432 | START2, END2 are the character positions of the second region. | |
4433 | START2_BYTE, END2_BYTE are the byte positions. | |
4434 | ||
b229b8d1 RS |
4435 | Traverses the entire marker list of the buffer to do so, adding an |
4436 | appropriate amount to some, subtracting from some, and leaving the | |
4437 | rest untouched. Most of this is copied from adjust_markers in insdel.c. | |
34a7a267 | 4438 | |
ec1c14f6 | 4439 | It's the caller's job to ensure that START1 <= END1 <= START2 <= END2. */ |
b229b8d1 | 4440 | |
acb7cc89 | 4441 | static void |
d311d28c PE |
4442 | transpose_markers (ptrdiff_t start1, ptrdiff_t end1, |
4443 | ptrdiff_t start2, ptrdiff_t end2, | |
4444 | ptrdiff_t start1_byte, ptrdiff_t end1_byte, | |
4445 | ptrdiff_t start2_byte, ptrdiff_t end2_byte) | |
b229b8d1 | 4446 | { |
d311d28c | 4447 | register ptrdiff_t amt1, amt1_byte, amt2, amt2_byte, diff, diff_byte, mpos; |
12038f9f | 4448 | register struct Lisp_Marker *marker; |
b229b8d1 | 4449 | |
03240d11 | 4450 | /* Update point as if it were a marker. */ |
8de1d5f0 KH |
4451 | if (PT < start1) |
4452 | ; | |
4453 | else if (PT < end1) | |
ec1c14f6 RS |
4454 | TEMP_SET_PT_BOTH (PT + (end2 - end1), |
4455 | PT_BYTE + (end2_byte - end1_byte)); | |
8de1d5f0 | 4456 | else if (PT < start2) |
ec1c14f6 RS |
4457 | TEMP_SET_PT_BOTH (PT + (end2 - start2) - (end1 - start1), |
4458 | (PT_BYTE + (end2_byte - start2_byte) | |
4459 | - (end1_byte - start1_byte))); | |
8de1d5f0 | 4460 | else if (PT < end2) |
ec1c14f6 RS |
4461 | TEMP_SET_PT_BOTH (PT - (start2 - start1), |
4462 | PT_BYTE - (start2_byte - start1_byte)); | |
8de1d5f0 | 4463 | |
03240d11 KH |
4464 | /* We used to adjust the endpoints here to account for the gap, but that |
4465 | isn't good enough. Even if we assume the caller has tried to move the | |
4466 | gap out of our way, it might still be at start1 exactly, for example; | |
4467 | and that places it `inside' the interval, for our purposes. The amount | |
4468 | of adjustment is nontrivial if there's a `denormalized' marker whose | |
4469 | position is between GPT and GPT + GAP_SIZE, so it's simpler to leave | |
4470 | the dirty work to Fmarker_position, below. */ | |
b229b8d1 RS |
4471 | |
4472 | /* The difference between the region's lengths */ | |
4473 | diff = (end2 - start2) - (end1 - start1); | |
ec1c14f6 | 4474 | diff_byte = (end2_byte - start2_byte) - (end1_byte - start1_byte); |
34a7a267 | 4475 | |
b229b8d1 | 4476 | /* For shifting each marker in a region by the length of the other |
ec1c14f6 | 4477 | region plus the distance between the regions. */ |
b229b8d1 RS |
4478 | amt1 = (end2 - start2) + (start2 - end1); |
4479 | amt2 = (end1 - start1) + (start2 - end1); | |
ec1c14f6 RS |
4480 | amt1_byte = (end2_byte - start2_byte) + (start2_byte - end1_byte); |
4481 | amt2_byte = (end1_byte - start1_byte) + (start2_byte - end1_byte); | |
b229b8d1 | 4482 | |
12038f9f | 4483 | for (marker = BUF_MARKERS (current_buffer); marker; marker = marker->next) |
b229b8d1 | 4484 | { |
12038f9f | 4485 | mpos = marker->bytepos; |
ec1c14f6 RS |
4486 | if (mpos >= start1_byte && mpos < end2_byte) |
4487 | { | |
4488 | if (mpos < end1_byte) | |
4489 | mpos += amt1_byte; | |
4490 | else if (mpos < start2_byte) | |
4491 | mpos += diff_byte; | |
4492 | else | |
4493 | mpos -= amt2_byte; | |
12038f9f | 4494 | marker->bytepos = mpos; |
ec1c14f6 | 4495 | } |
12038f9f | 4496 | mpos = marker->charpos; |
03240d11 KH |
4497 | if (mpos >= start1 && mpos < end2) |
4498 | { | |
4499 | if (mpos < end1) | |
4500 | mpos += amt1; | |
4501 | else if (mpos < start2) | |
4502 | mpos += diff; | |
4503 | else | |
4504 | mpos -= amt2; | |
03240d11 | 4505 | } |
12038f9f | 4506 | marker->charpos = mpos; |
b229b8d1 RS |
4507 | } |
4508 | } | |
4509 | ||
4510 | DEFUN ("transpose-regions", Ftranspose_regions, Stranspose_regions, 4, 5, 0, | |
412f1fab | 4511 | doc: /* Transpose region STARTR1 to ENDR1 with STARTR2 to ENDR2. |
27a69fd9 | 4512 | The regions should not be overlapping, because the size of the buffer is |
a1f17501 PJ |
4513 | never changed in a transposition. |
4514 | ||
412f1fab | 4515 | Optional fifth arg LEAVE-MARKERS, if non-nil, means don't update |
a1f17501 PJ |
4516 | any markers that happen to be located in the regions. |
4517 | ||
7ee72033 | 4518 | Transposing beyond buffer boundaries is an error. */) |
5842a27b | 4519 | (Lisp_Object startr1, Lisp_Object endr1, Lisp_Object startr2, Lisp_Object endr2, Lisp_Object leave_markers) |
b229b8d1 | 4520 | { |
d311d28c PE |
4521 | register ptrdiff_t start1, end1, start2, end2; |
4522 | ptrdiff_t start1_byte, start2_byte, len1_byte, len2_byte; | |
4523 | ptrdiff_t gap, len1, len_mid, len2; | |
3c6bc7d0 | 4524 | unsigned char *start1_addr, *start2_addr, *temp; |
b229b8d1 | 4525 | |
6cd0f478 | 4526 | INTERVAL cur_intv, tmp_interval1, tmp_interval_mid, tmp_interval2, tmp_interval3; |
916480c4 CY |
4527 | Lisp_Object buf; |
4528 | ||
4529 | XSETBUFFER (buf, current_buffer); | |
1e158d25 | 4530 | cur_intv = BUF_INTERVALS (current_buffer); |
b229b8d1 RS |
4531 | |
4532 | validate_region (&startr1, &endr1); | |
4533 | validate_region (&startr2, &endr2); | |
4534 | ||
4535 | start1 = XFASTINT (startr1); | |
4536 | end1 = XFASTINT (endr1); | |
4537 | start2 = XFASTINT (startr2); | |
4538 | end2 = XFASTINT (endr2); | |
4539 | gap = GPT; | |
4540 | ||
4541 | /* Swap the regions if they're reversed. */ | |
4542 | if (start2 < end1) | |
4543 | { | |
d311d28c | 4544 | register ptrdiff_t glumph = start1; |
b229b8d1 RS |
4545 | start1 = start2; |
4546 | start2 = glumph; | |
4547 | glumph = end1; | |
4548 | end1 = end2; | |
4549 | end2 = glumph; | |
4550 | } | |
4551 | ||
b229b8d1 RS |
4552 | len1 = end1 - start1; |
4553 | len2 = end2 - start2; | |
4554 | ||
4555 | if (start2 < end1) | |
dc3620af | 4556 | error ("Transposed regions overlap"); |
0f4aebc0 LL |
4557 | /* Nothing to change for adjacent regions with one being empty */ |
4558 | else if ((start1 == end1 || start2 == end2) && end1 == start2) | |
4559 | return Qnil; | |
b229b8d1 RS |
4560 | |
4561 | /* The possibilities are: | |
4562 | 1. Adjacent (contiguous) regions, or separate but equal regions | |
4563 | (no, really equal, in this case!), or | |
4564 | 2. Separate regions of unequal size. | |
34a7a267 | 4565 | |
b229b8d1 RS |
4566 | The worst case is usually No. 2. It means that (aside from |
4567 | potential need for getting the gap out of the way), there also | |
4568 | needs to be a shifting of the text between the two regions. So | |
4569 | if they are spread far apart, we are that much slower... sigh. */ | |
4570 | ||
4571 | /* It must be pointed out that the really studly thing to do would | |
4572 | be not to move the gap at all, but to leave it in place and work | |
4573 | around it if necessary. This would be extremely efficient, | |
4574 | especially considering that people are likely to do | |
4575 | transpositions near where they are working interactively, which | |
4576 | is exactly where the gap would be found. However, such code | |
4577 | would be much harder to write and to read. So, if you are | |
4578 | reading this comment and are feeling squirrely, by all means have | |
4579 | a go! I just didn't feel like doing it, so I will simply move | |
4580 | the gap the minimum distance to get it out of the way, and then | |
4581 | deal with an unbroken array. */ | |
3c6bc7d0 RS |
4582 | |
4583 | /* Make sure the gap won't interfere, by moving it out of the text | |
4584 | we will operate on. */ | |
4585 | if (start1 < gap && gap < end2) | |
4586 | { | |
4587 | if (gap - start1 < end2 - gap) | |
4588 | move_gap (start1); | |
4589 | else | |
4590 | move_gap (end2); | |
4591 | } | |
ec1c14f6 RS |
4592 | |
4593 | start1_byte = CHAR_TO_BYTE (start1); | |
4594 | start2_byte = CHAR_TO_BYTE (start2); | |
4595 | len1_byte = CHAR_TO_BYTE (end1) - start1_byte; | |
4596 | len2_byte = CHAR_TO_BYTE (end2) - start2_byte; | |
dc3620af | 4597 | |
9a599130 | 4598 | #ifdef BYTE_COMBINING_DEBUG |
dc3620af RS |
4599 | if (end1 == start2) |
4600 | { | |
9a599130 KH |
4601 | if (count_combining_before (BYTE_POS_ADDR (start2_byte), |
4602 | len2_byte, start1, start1_byte) | |
4603 | || count_combining_before (BYTE_POS_ADDR (start1_byte), | |
4604 | len1_byte, end2, start2_byte + len2_byte) | |
4605 | || count_combining_after (BYTE_POS_ADDR (start1_byte), | |
4606 | len1_byte, end2, start2_byte + len2_byte)) | |
4607 | abort (); | |
dc3620af RS |
4608 | } |
4609 | else | |
4610 | { | |
9a599130 KH |
4611 | if (count_combining_before (BYTE_POS_ADDR (start2_byte), |
4612 | len2_byte, start1, start1_byte) | |
4613 | || count_combining_before (BYTE_POS_ADDR (start1_byte), | |
4614 | len1_byte, start2, start2_byte) | |
4615 | || count_combining_after (BYTE_POS_ADDR (start2_byte), | |
4616 | len2_byte, end1, start1_byte + len1_byte) | |
4617 | || count_combining_after (BYTE_POS_ADDR (start1_byte), | |
4618 | len1_byte, end2, start2_byte + len2_byte)) | |
4619 | abort (); | |
dc3620af | 4620 | } |
9a599130 | 4621 | #endif |
dc3620af | 4622 | |
b229b8d1 RS |
4623 | /* Hmmm... how about checking to see if the gap is large |
4624 | enough to use as the temporary storage? That would avoid an | |
4625 | allocation... interesting. Later, don't fool with it now. */ | |
4626 | ||
4627 | /* Working without memmove, for portability (sigh), so must be | |
4628 | careful of overlapping subsections of the array... */ | |
4629 | ||
4630 | if (end1 == start2) /* adjacent regions */ | |
4631 | { | |
3e145152 | 4632 | modify_region (current_buffer, start1, end2, 0); |
b229b8d1 RS |
4633 | record_change (start1, len1 + len2); |
4634 | ||
b229b8d1 RS |
4635 | tmp_interval1 = copy_intervals (cur_intv, start1, len1); |
4636 | tmp_interval2 = copy_intervals (cur_intv, start2, len2); | |
916480c4 CY |
4637 | /* Don't use Fset_text_properties: that can cause GC, which can |
4638 | clobber objects stored in the tmp_intervals. */ | |
6cd0f478 CY |
4639 | tmp_interval3 = validate_interval_range (buf, &startr1, &endr2, 0); |
4640 | if (!NULL_INTERVAL_P (tmp_interval3)) | |
4641 | set_text_properties_1 (startr1, endr2, Qnil, buf, tmp_interval3); | |
b229b8d1 RS |
4642 | |
4643 | /* First region smaller than second. */ | |
ec1c14f6 | 4644 | if (len1_byte < len2_byte) |
b229b8d1 | 4645 | { |
7e2c051b KS |
4646 | USE_SAFE_ALLOCA; |
4647 | ||
98c6f1e3 | 4648 | temp = SAFE_ALLOCA (len2_byte); |
03240d11 KH |
4649 | |
4650 | /* Don't precompute these addresses. We have to compute them | |
4651 | at the last minute, because the relocating allocator might | |
4652 | have moved the buffer around during the xmalloc. */ | |
23017390 KH |
4653 | start1_addr = BYTE_POS_ADDR (start1_byte); |
4654 | start2_addr = BYTE_POS_ADDR (start2_byte); | |
03240d11 | 4655 | |
72af86bd AS |
4656 | memcpy (temp, start2_addr, len2_byte); |
4657 | memcpy (start1_addr + len2_byte, start1_addr, len1_byte); | |
4658 | memcpy (start1_addr, temp, len2_byte); | |
e65837df | 4659 | SAFE_FREE (); |
b229b8d1 RS |
4660 | } |
4661 | else | |
4662 | /* First region not smaller than second. */ | |
4663 | { | |
7e2c051b KS |
4664 | USE_SAFE_ALLOCA; |
4665 | ||
98c6f1e3 | 4666 | temp = SAFE_ALLOCA (len1_byte); |
23017390 KH |
4667 | start1_addr = BYTE_POS_ADDR (start1_byte); |
4668 | start2_addr = BYTE_POS_ADDR (start2_byte); | |
72af86bd AS |
4669 | memcpy (temp, start1_addr, len1_byte); |
4670 | memcpy (start1_addr, start2_addr, len2_byte); | |
4671 | memcpy (start1_addr + len2_byte, temp, len1_byte); | |
e65837df | 4672 | SAFE_FREE (); |
b229b8d1 | 4673 | } |
b229b8d1 RS |
4674 | graft_intervals_into_buffer (tmp_interval1, start1 + len2, |
4675 | len1, current_buffer, 0); | |
4676 | graft_intervals_into_buffer (tmp_interval2, start1, | |
4677 | len2, current_buffer, 0); | |
d5c2c403 KH |
4678 | update_compositions (start1, start1 + len2, CHECK_BORDER); |
4679 | update_compositions (start1 + len2, end2, CHECK_TAIL); | |
b229b8d1 RS |
4680 | } |
4681 | /* Non-adjacent regions, because end1 != start2, bleagh... */ | |
4682 | else | |
4683 | { | |
ec1c14f6 RS |
4684 | len_mid = start2_byte - (start1_byte + len1_byte); |
4685 | ||
4686 | if (len1_byte == len2_byte) | |
b229b8d1 RS |
4687 | /* Regions are same size, though, how nice. */ |
4688 | { | |
7e2c051b KS |
4689 | USE_SAFE_ALLOCA; |
4690 | ||
3e145152 CY |
4691 | modify_region (current_buffer, start1, end1, 0); |
4692 | modify_region (current_buffer, start2, end2, 0); | |
b229b8d1 RS |
4693 | record_change (start1, len1); |
4694 | record_change (start2, len2); | |
b229b8d1 RS |
4695 | tmp_interval1 = copy_intervals (cur_intv, start1, len1); |
4696 | tmp_interval2 = copy_intervals (cur_intv, start2, len2); | |
6cd0f478 CY |
4697 | |
4698 | tmp_interval3 = validate_interval_range (buf, &startr1, &endr1, 0); | |
4699 | if (!NULL_INTERVAL_P (tmp_interval3)) | |
4700 | set_text_properties_1 (startr1, endr1, Qnil, buf, tmp_interval3); | |
4701 | ||
4702 | tmp_interval3 = validate_interval_range (buf, &startr2, &endr2, 0); | |
4703 | if (!NULL_INTERVAL_P (tmp_interval3)) | |
4704 | set_text_properties_1 (startr2, endr2, Qnil, buf, tmp_interval3); | |
b229b8d1 | 4705 | |
98c6f1e3 | 4706 | temp = SAFE_ALLOCA (len1_byte); |
23017390 KH |
4707 | start1_addr = BYTE_POS_ADDR (start1_byte); |
4708 | start2_addr = BYTE_POS_ADDR (start2_byte); | |
72af86bd AS |
4709 | memcpy (temp, start1_addr, len1_byte); |
4710 | memcpy (start1_addr, start2_addr, len2_byte); | |
4711 | memcpy (start2_addr, temp, len1_byte); | |
e65837df | 4712 | SAFE_FREE (); |
7e2c051b | 4713 | |
b229b8d1 RS |
4714 | graft_intervals_into_buffer (tmp_interval1, start2, |
4715 | len1, current_buffer, 0); | |
4716 | graft_intervals_into_buffer (tmp_interval2, start1, | |
4717 | len2, current_buffer, 0); | |
b229b8d1 RS |
4718 | } |
4719 | ||
ec1c14f6 | 4720 | else if (len1_byte < len2_byte) /* Second region larger than first */ |
b229b8d1 RS |
4721 | /* Non-adjacent & unequal size, area between must also be shifted. */ |
4722 | { | |
7e2c051b KS |
4723 | USE_SAFE_ALLOCA; |
4724 | ||
3e145152 | 4725 | modify_region (current_buffer, start1, end2, 0); |
b229b8d1 | 4726 | record_change (start1, (end2 - start1)); |
b229b8d1 RS |
4727 | tmp_interval1 = copy_intervals (cur_intv, start1, len1); |
4728 | tmp_interval_mid = copy_intervals (cur_intv, end1, len_mid); | |
4729 | tmp_interval2 = copy_intervals (cur_intv, start2, len2); | |
6cd0f478 CY |
4730 | |
4731 | tmp_interval3 = validate_interval_range (buf, &startr1, &endr2, 0); | |
4732 | if (!NULL_INTERVAL_P (tmp_interval3)) | |
4733 | set_text_properties_1 (startr1, endr2, Qnil, buf, tmp_interval3); | |
b229b8d1 | 4734 | |
3c6bc7d0 | 4735 | /* holds region 2 */ |
98c6f1e3 | 4736 | temp = SAFE_ALLOCA (len2_byte); |
23017390 KH |
4737 | start1_addr = BYTE_POS_ADDR (start1_byte); |
4738 | start2_addr = BYTE_POS_ADDR (start2_byte); | |
72af86bd AS |
4739 | memcpy (temp, start2_addr, len2_byte); |
4740 | memcpy (start1_addr + len_mid + len2_byte, start1_addr, len1_byte); | |
4741 | memmove (start1_addr + len2_byte, start1_addr + len1_byte, len_mid); | |
4742 | memcpy (start1_addr, temp, len2_byte); | |
e65837df | 4743 | SAFE_FREE (); |
7e2c051b | 4744 | |
b229b8d1 RS |
4745 | graft_intervals_into_buffer (tmp_interval1, end2 - len1, |
4746 | len1, current_buffer, 0); | |
4747 | graft_intervals_into_buffer (tmp_interval_mid, start1 + len2, | |
4748 | len_mid, current_buffer, 0); | |
4749 | graft_intervals_into_buffer (tmp_interval2, start1, | |
4750 | len2, current_buffer, 0); | |
b229b8d1 RS |
4751 | } |
4752 | else | |
4753 | /* Second region smaller than first. */ | |
4754 | { | |
7e2c051b KS |
4755 | USE_SAFE_ALLOCA; |
4756 | ||
b229b8d1 | 4757 | record_change (start1, (end2 - start1)); |
3e145152 | 4758 | modify_region (current_buffer, start1, end2, 0); |
b229b8d1 | 4759 | |
b229b8d1 RS |
4760 | tmp_interval1 = copy_intervals (cur_intv, start1, len1); |
4761 | tmp_interval_mid = copy_intervals (cur_intv, end1, len_mid); | |
4762 | tmp_interval2 = copy_intervals (cur_intv, start2, len2); | |
6cd0f478 CY |
4763 | |
4764 | tmp_interval3 = validate_interval_range (buf, &startr1, &endr2, 0); | |
4765 | if (!NULL_INTERVAL_P (tmp_interval3)) | |
4766 | set_text_properties_1 (startr1, endr2, Qnil, buf, tmp_interval3); | |
b229b8d1 | 4767 | |
3c6bc7d0 | 4768 | /* holds region 1 */ |
98c6f1e3 | 4769 | temp = SAFE_ALLOCA (len1_byte); |
23017390 KH |
4770 | start1_addr = BYTE_POS_ADDR (start1_byte); |
4771 | start2_addr = BYTE_POS_ADDR (start2_byte); | |
72af86bd AS |
4772 | memcpy (temp, start1_addr, len1_byte); |
4773 | memcpy (start1_addr, start2_addr, len2_byte); | |
4774 | memcpy (start1_addr + len2_byte, start1_addr + len1_byte, len_mid); | |
4775 | memcpy (start1_addr + len2_byte + len_mid, temp, len1_byte); | |
e65837df | 4776 | SAFE_FREE (); |
7e2c051b | 4777 | |
b229b8d1 RS |
4778 | graft_intervals_into_buffer (tmp_interval1, end2 - len1, |
4779 | len1, current_buffer, 0); | |
4780 | graft_intervals_into_buffer (tmp_interval_mid, start1 + len2, | |
4781 | len_mid, current_buffer, 0); | |
4782 | graft_intervals_into_buffer (tmp_interval2, start1, | |
4783 | len2, current_buffer, 0); | |
b229b8d1 | 4784 | } |
d5c2c403 KH |
4785 | |
4786 | update_compositions (start1, start1 + len2, CHECK_BORDER); | |
4787 | update_compositions (end2 - len1, end2, CHECK_BORDER); | |
b229b8d1 RS |
4788 | } |
4789 | ||
ec1c14f6 RS |
4790 | /* When doing multiple transpositions, it might be nice |
4791 | to optimize this. Perhaps the markers in any one buffer | |
4792 | should be organized in some sorted data tree. */ | |
b229b8d1 | 4793 | if (NILP (leave_markers)) |
8de1d5f0 | 4794 | { |
ec1c14f6 RS |
4795 | transpose_markers (start1, end1, start2, end2, |
4796 | start1_byte, start1_byte + len1_byte, | |
4797 | start2_byte, start2_byte + len2_byte); | |
6b61353c | 4798 | fix_start_end_in_overlays (start1, end2); |
8de1d5f0 | 4799 | } |
b229b8d1 | 4800 | |
c10b2810 | 4801 | signal_after_change (start1, end2 - start1, end2 - start1); |
b229b8d1 RS |
4802 | return Qnil; |
4803 | } | |
35692fe0 | 4804 | |
35692fe0 JB |
4805 | \f |
4806 | void | |
971de7fb | 4807 | syms_of_editfns (void) |
35692fe0 | 4808 | { |
260e2e2a | 4809 | environbuf = 0; |
a03fc5a6 | 4810 | initial_tz = 0; |
260e2e2a | 4811 | |
cd3520a4 | 4812 | DEFSYM (Qbuffer_access_fontify_functions, "buffer-access-fontify-functions"); |
260e2e2a | 4813 | |
29208e82 | 4814 | DEFVAR_LISP ("inhibit-field-text-motion", Vinhibit_field_text_motion, |
7dcece14 | 4815 | doc: /* Non-nil means text motion commands don't notice fields. */); |
9a74e7e5 GM |
4816 | Vinhibit_field_text_motion = Qnil; |
4817 | ||
260e2e2a | 4818 | DEFVAR_LISP ("buffer-access-fontify-functions", |
29208e82 | 4819 | Vbuffer_access_fontify_functions, |
7ee72033 | 4820 | doc: /* List of functions called by `buffer-substring' to fontify if necessary. |
a1f17501 PJ |
4821 | Each function is called with two arguments which specify the range |
4822 | of the buffer being accessed. */); | |
260e2e2a KH |
4823 | Vbuffer_access_fontify_functions = Qnil; |
4824 | ||
af209db8 RS |
4825 | { |
4826 | Lisp_Object obuf; | |
af209db8 RS |
4827 | obuf = Fcurrent_buffer (); |
4828 | /* Do this here, because init_buffer_once is too early--it won't work. */ | |
4829 | Fset_buffer (Vprin1_to_string_buffer); | |
4830 | /* Make sure buffer-access-fontify-functions is nil in this buffer. */ | |
d67b4f80 | 4831 | Fset (Fmake_local_variable (intern_c_string ("buffer-access-fontify-functions")), |
af209db8 RS |
4832 | Qnil); |
4833 | Fset_buffer (obuf); | |
4834 | } | |
4835 | ||
0b6fd023 | 4836 | DEFVAR_LISP ("buffer-access-fontified-property", |
29208e82 | 4837 | Vbuffer_access_fontified_property, |
7ee72033 | 4838 | doc: /* Property which (if non-nil) indicates text has been fontified. |
a1f17501 PJ |
4839 | `buffer-substring' need not call the `buffer-access-fontify-functions' |
4840 | functions if all the text being accessed has this property. */); | |
260e2e2a KH |
4841 | Vbuffer_access_fontified_property = Qnil; |
4842 | ||
29208e82 | 4843 | DEFVAR_LISP ("system-name", Vsystem_name, |
1a7e0117 | 4844 | doc: /* The host name of the machine Emacs is running on. */); |
34a7a267 | 4845 | |
29208e82 | 4846 | DEFVAR_LISP ("user-full-name", Vuser_full_name, |
7ee72033 | 4847 | doc: /* The full name of the user logged in. */); |
f43754f6 | 4848 | |
29208e82 | 4849 | DEFVAR_LISP ("user-login-name", Vuser_login_name, |
7ee72033 | 4850 | doc: /* The user's name, taken from environment variables if possible. */); |
f43754f6 | 4851 | |
29208e82 | 4852 | DEFVAR_LISP ("user-real-login-name", Vuser_real_login_name, |
7ee72033 | 4853 | doc: /* The user's name, based upon the real uid only. */); |
35692fe0 | 4854 | |
29208e82 | 4855 | DEFVAR_LISP ("operating-system-release", Voperating_system_release, |
3bb9abc8 ST |
4856 | doc: /* The release of the operating system Emacs is running on. */); |
4857 | ||
0963334d | 4858 | defsubr (&Spropertize); |
35692fe0 JB |
4859 | defsubr (&Schar_equal); |
4860 | defsubr (&Sgoto_char); | |
4861 | defsubr (&Sstring_to_char); | |
4862 | defsubr (&Schar_to_string); | |
c3bb441d | 4863 | defsubr (&Sbyte_to_string); |
35692fe0 | 4864 | defsubr (&Sbuffer_substring); |
260e2e2a | 4865 | defsubr (&Sbuffer_substring_no_properties); |
35692fe0 JB |
4866 | defsubr (&Sbuffer_string); |
4867 | ||
4868 | defsubr (&Spoint_marker); | |
4869 | defsubr (&Smark_marker); | |
4870 | defsubr (&Spoint); | |
4871 | defsubr (&Sregion_beginning); | |
4872 | defsubr (&Sregion_end); | |
7df74da6 | 4873 | |
cd3520a4 JB |
4874 | DEFSYM (Qfield, "field"); |
4875 | DEFSYM (Qboundary, "boundary"); | |
0daf6e8d GM |
4876 | defsubr (&Sfield_beginning); |
4877 | defsubr (&Sfield_end); | |
4878 | defsubr (&Sfield_string); | |
4879 | defsubr (&Sfield_string_no_properties); | |
8bf64fe8 | 4880 | defsubr (&Sdelete_field); |
0daf6e8d GM |
4881 | defsubr (&Sconstrain_to_field); |
4882 | ||
7df74da6 RS |
4883 | defsubr (&Sline_beginning_position); |
4884 | defsubr (&Sline_end_position); | |
4885 | ||
35692fe0 JB |
4886 | /* defsubr (&Smark); */ |
4887 | /* defsubr (&Sset_mark); */ | |
4888 | defsubr (&Ssave_excursion); | |
4bc8c7d2 | 4889 | defsubr (&Ssave_current_buffer); |
35692fe0 JB |
4890 | |
4891 | defsubr (&Sbufsize); | |
4892 | defsubr (&Spoint_max); | |
4893 | defsubr (&Spoint_min); | |
4894 | defsubr (&Spoint_min_marker); | |
4895 | defsubr (&Spoint_max_marker); | |
c86212b9 RS |
4896 | defsubr (&Sgap_position); |
4897 | defsubr (&Sgap_size); | |
7df74da6 | 4898 | defsubr (&Sposition_bytes); |
3ab0732d | 4899 | defsubr (&Sbyte_to_position); |
c9ed721d | 4900 | |
35692fe0 JB |
4901 | defsubr (&Sbobp); |
4902 | defsubr (&Seobp); | |
4903 | defsubr (&Sbolp); | |
4904 | defsubr (&Seolp); | |
850a8179 JB |
4905 | defsubr (&Sfollowing_char); |
4906 | defsubr (&Sprevious_char); | |
35692fe0 | 4907 | defsubr (&Schar_after); |
fb8106e8 | 4908 | defsubr (&Schar_before); |
35692fe0 JB |
4909 | defsubr (&Sinsert); |
4910 | defsubr (&Sinsert_before_markers); | |
be91036a RS |
4911 | defsubr (&Sinsert_and_inherit); |
4912 | defsubr (&Sinsert_and_inherit_before_markers); | |
35692fe0 | 4913 | defsubr (&Sinsert_char); |
48ef988f | 4914 | defsubr (&Sinsert_byte); |
35692fe0 JB |
4915 | |
4916 | defsubr (&Suser_login_name); | |
4917 | defsubr (&Suser_real_login_name); | |
4918 | defsubr (&Suser_uid); | |
4919 | defsubr (&Suser_real_uid); | |
4920 | defsubr (&Suser_full_name); | |
7fd233b3 | 4921 | defsubr (&Semacs_pid); |
d940e0e4 | 4922 | defsubr (&Scurrent_time); |
4211ee7d | 4923 | defsubr (&Sget_internal_run_time); |
a82d387c | 4924 | defsubr (&Sformat_time_string); |
34a7a267 | 4925 | defsubr (&Sfloat_time); |
4691c06d | 4926 | defsubr (&Sdecode_time); |
cce7b8a0 | 4927 | defsubr (&Sencode_time); |
35692fe0 | 4928 | defsubr (&Scurrent_time_string); |
c2662aea | 4929 | defsubr (&Scurrent_time_zone); |
143cb9a9 | 4930 | defsubr (&Sset_time_zone_rule); |
35692fe0 | 4931 | defsubr (&Ssystem_name); |
35692fe0 | 4932 | defsubr (&Smessage); |
cacc3e2c RS |
4933 | defsubr (&Smessage_box); |
4934 | defsubr (&Smessage_or_box); | |
b14dda8a | 4935 | defsubr (&Scurrent_message); |
35692fe0 | 4936 | defsubr (&Sformat); |
35692fe0 JB |
4937 | |
4938 | defsubr (&Sinsert_buffer_substring); | |
e9cf2084 | 4939 | defsubr (&Scompare_buffer_substrings); |
35692fe0 | 4940 | defsubr (&Ssubst_char_in_region); |
8583605b | 4941 | defsubr (&Stranslate_region_internal); |
35692fe0 | 4942 | defsubr (&Sdelete_region); |
7dae4502 | 4943 | defsubr (&Sdelete_and_extract_region); |
35692fe0 JB |
4944 | defsubr (&Swiden); |
4945 | defsubr (&Snarrow_to_region); | |
4946 | defsubr (&Ssave_restriction); | |
b229b8d1 | 4947 | defsubr (&Stranspose_regions); |
35692fe0 | 4948 | } |