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> |
bfb61299 | 24 | |
5b9c0a1d | 25 | #ifdef HAVE_PWD_H |
35692fe0 | 26 | #include <pwd.h> |
bfb61299 JB |
27 | #endif |
28 | ||
dfcf069d | 29 | #include <unistd.h> |
dfcf069d | 30 | |
3bb9abc8 ST |
31 | #ifdef HAVE_SYS_UTSNAME_H |
32 | #include <sys/utsname.h> | |
33 | #endif | |
34 | ||
b17f9379 DN |
35 | #include "lisp.h" |
36 | ||
3c14598c EZ |
37 | /* systime.h includes <sys/time.h> which, on some systems, is required |
38 | for <sys/resource.h>; thus systime.h must be included before | |
39 | <sys/resource.h> */ | |
40 | #include "systime.h" | |
21acf124 ST |
41 | |
42 | #if defined HAVE_SYS_RESOURCE_H | |
4211ee7d | 43 | #include <sys/resource.h> |
e0f712ba AC |
44 | #endif |
45 | ||
37910ab2 | 46 | #include <float.h> |
b8d9bd41 PE |
47 | #include <limits.h> |
48 | #include <intprops.h> | |
16c3e636 | 49 | #include <strftime.h> |
37910ab2 | 50 | #include <verify.h> |
409847a1 | 51 | |
74d6d8c5 | 52 | #include "intervals.h" |
40fbd254 | 53 | #include "character.h" |
e5560ff7 | 54 | #include "buffer.h" |
68c45bf0 | 55 | #include "coding.h" |
0ae83348 | 56 | #include "frame.h" |
35692fe0 | 57 | #include "window.h" |
b91834c3 | 58 | #include "blockinput.h" |
35692fe0 | 59 | |
aac18aa4 PE |
60 | #define TM_YEAR_BASE 1900 |
61 | ||
c433c134 | 62 | #ifdef WINDOWSNT |
361358ea | 63 | extern Lisp_Object w32_get_internal_run_time (void); |
c433c134 JR |
64 | #endif |
65 | ||
d35af63c | 66 | static Lisp_Object format_time_string (char const *, ptrdiff_t, EMACS_TIME, |
a08d4ba7 | 67 | bool, struct tm *); |
f57e2426 | 68 | static int tm_diff (struct tm *, struct tm *); |
d311d28c | 69 | static void update_buffer_properties (ptrdiff_t, ptrdiff_t); |
260e2e2a | 70 | |
955cbe7b | 71 | static Lisp_Object Qbuffer_access_fontify_functions; |
e3ed8469 | 72 | |
acb7cc89 GM |
73 | /* Symbol for the text property used to mark fields. */ |
74 | ||
75 | Lisp_Object Qfield; | |
76 | ||
77 | /* A special value for Qfield properties. */ | |
78 | ||
955cbe7b | 79 | static Lisp_Object Qboundary; |
acb7cc89 GM |
80 | |
81 | ||
35692fe0 | 82 | void |
971de7fb | 83 | init_editfns (void) |
35692fe0 | 84 | { |
63c5d10b | 85 | const char *user_name; |
e7f8264d | 86 | register char *p; |
35692fe0 | 87 | struct passwd *pw; /* password entry for the current user */ |
35692fe0 JB |
88 | Lisp_Object tem; |
89 | ||
90 | /* Set up system_name even when dumping. */ | |
ac988277 | 91 | init_system_name (); |
35692fe0 JB |
92 | |
93 | #ifndef CANNOT_DUMP | |
94 | /* Don't bother with this on initial start when just dumping out */ | |
95 | if (!initialized) | |
96 | return; | |
97 | #endif /* not CANNOT_DUMP */ | |
98 | ||
63c5d10b | 99 | pw = getpwuid (getuid ()); |
87485d6f MW |
100 | #ifdef MSDOS |
101 | /* We let the real user name default to "root" because that's quite | |
102 | accurate on MSDOG and because it lets Emacs find the init file. | |
103 | (The DVX libraries override the Djgpp libraries here.) */ | |
35b34f72 | 104 | Vuser_real_login_name = build_string (pw ? pw->pw_name : "root"); |
87485d6f | 105 | #else |
35b34f72 | 106 | Vuser_real_login_name = build_string (pw ? pw->pw_name : "unknown"); |
87485d6f | 107 | #endif |
35692fe0 | 108 | |
52b14ac0 JB |
109 | /* Get the effective user name, by consulting environment variables, |
110 | or the effective uid if those are unset. */ | |
63c5d10b | 111 | user_name = getenv ("LOGNAME"); |
35692fe0 | 112 | if (!user_name) |
4691c06d | 113 | #ifdef WINDOWSNT |
63c5d10b | 114 | user_name = getenv ("USERNAME"); /* it's USERNAME on NT */ |
4691c06d | 115 | #else /* WINDOWSNT */ |
63c5d10b | 116 | user_name = getenv ("USER"); |
4691c06d | 117 | #endif /* WINDOWSNT */ |
52b14ac0 JB |
118 | if (!user_name) |
119 | { | |
63c5d10b PE |
120 | pw = getpwuid (geteuid ()); |
121 | user_name = pw ? pw->pw_name : "unknown"; | |
52b14ac0 | 122 | } |
35b34f72 | 123 | Vuser_login_name = build_string (user_name); |
35692fe0 | 124 | |
52b14ac0 JB |
125 | /* If the user name claimed in the environment vars differs from |
126 | the real uid, use the claimed name to find the full name. */ | |
35b34f72 | 127 | tem = Fstring_equal (Vuser_login_name, Vuser_real_login_name); |
d311d28c PE |
128 | if (! NILP (tem)) |
129 | tem = Vuser_login_name; | |
130 | else | |
131 | { | |
132 | uid_t euid = geteuid (); | |
133 | tem = make_fixnum_or_float (euid); | |
134 | } | |
135 | Vuser_full_name = Fuser_full_name (tem); | |
34a7a267 | 136 | |
e7f8264d | 137 | p = getenv ("NAME"); |
9d36d071 RS |
138 | if (p) |
139 | Vuser_full_name = build_string (p); | |
3347526c RS |
140 | else if (NILP (Vuser_full_name)) |
141 | Vuser_full_name = build_string ("unknown"); | |
3bb9abc8 ST |
142 | |
143 | #ifdef HAVE_SYS_UTSNAME_H | |
144 | { | |
145 | struct utsname uts; | |
146 | uname (&uts); | |
147 | Voperating_system_release = build_string (uts.release); | |
148 | } | |
149 | #else | |
150 | Voperating_system_release = Qnil; | |
151 | #endif | |
35692fe0 JB |
152 | } |
153 | \f | |
a7ca3326 | 154 | DEFUN ("char-to-string", Fchar_to_string, Schar_to_string, 1, 1, 0, |
06283081 PJ |
155 | doc: /* Convert arg CHAR to a string containing that character. |
156 | usage: (char-to-string CHAR) */) | |
5842a27b | 157 | (Lisp_Object character) |
35692fe0 | 158 | { |
13bdea59 | 159 | int c, len; |
d5c2c403 | 160 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
fb8106e8 | 161 | |
1b9c91ed | 162 | CHECK_CHARACTER (character); |
13bdea59 | 163 | c = XFASTINT (character); |
35692fe0 | 164 | |
13bdea59 | 165 | len = CHAR_STRING (c, str); |
e7f8264d | 166 | return make_string_from_bytes ((char *) str, 1, len); |
35692fe0 JB |
167 | } |
168 | ||
c3bb441d | 169 | DEFUN ("byte-to-string", Fbyte_to_string, Sbyte_to_string, 1, 1, 0, |
35f1de62 | 170 | doc: /* Convert arg BYTE to a unibyte string containing that byte. */) |
5842a27b | 171 | (Lisp_Object byte) |
c3bb441d | 172 | { |
64c60c2f | 173 | unsigned char b; |
c3bb441d | 174 | CHECK_NUMBER (byte); |
35f1de62 CY |
175 | if (XINT (byte) < 0 || XINT (byte) > 255) |
176 | error ("Invalid byte"); | |
64c60c2f | 177 | b = XINT (byte); |
e7f8264d | 178 | return make_string_from_bytes ((char *) &b, 1, 1); |
c3bb441d SM |
179 | } |
180 | ||
35692fe0 | 181 | DEFUN ("string-to-char", Fstring_to_char, Sstring_to_char, 1, 1, 0, |
da4adb04 | 182 | doc: /* Return the first character in STRING. */) |
5842a27b | 183 | (register Lisp_Object string) |
35692fe0 JB |
184 | { |
185 | register Lisp_Object val; | |
b7826503 | 186 | CHECK_STRING (string); |
4e491f8d | 187 | if (SCHARS (string)) |
d9d851ea KH |
188 | { |
189 | if (STRING_MULTIBYTE (string)) | |
62a6e103 | 190 | XSETFASTINT (val, STRING_CHAR (SDATA (string))); |
d9d851ea | 191 | else |
4e491f8d | 192 | XSETFASTINT (val, SREF (string, 0)); |
d9d851ea | 193 | } |
35692fe0 | 194 | else |
55561c63 | 195 | XSETFASTINT (val, 0); |
35692fe0 JB |
196 | return val; |
197 | } | |
35692fe0 | 198 | |
a7ca3326 | 199 | DEFUN ("point", Fpoint, Spoint, 0, 0, 0, |
7ee72033 MB |
200 | doc: /* Return value of point, as an integer. |
201 | Beginning of buffer is position (point-min). */) | |
5842a27b | 202 | (void) |
35692fe0 JB |
203 | { |
204 | Lisp_Object temp; | |
6ec8bbd2 | 205 | XSETFASTINT (temp, PT); |
35692fe0 JB |
206 | return temp; |
207 | } | |
208 | ||
a7ca3326 | 209 | DEFUN ("point-marker", Fpoint_marker, Spoint_marker, 0, 0, 0, |
7ee72033 | 210 | doc: /* Return value of point, as a marker object. */) |
5842a27b | 211 | (void) |
35692fe0 | 212 | { |
657924ff | 213 | return build_marker (current_buffer, PT, PT_BYTE); |
35692fe0 JB |
214 | } |
215 | ||
a7ca3326 | 216 | DEFUN ("goto-char", Fgoto_char, Sgoto_char, 1, 1, "NGoto char: ", |
7ee72033 | 217 | doc: /* Set point to POSITION, a number or marker. |
8696b557 EZ |
218 | Beginning of buffer is position (point-min), end is (point-max). |
219 | ||
220 | The return value is POSITION. */) | |
5842a27b | 221 | (register Lisp_Object position) |
35692fe0 | 222 | { |
d311d28c | 223 | ptrdiff_t pos; |
fb8106e8 | 224 | |
72ef82ec RS |
225 | if (MARKERP (position) |
226 | && current_buffer == XMARKER (position)->buffer) | |
ec1c14f6 RS |
227 | { |
228 | pos = marker_position (position); | |
229 | if (pos < BEGV) | |
230 | SET_PT_BOTH (BEGV, BEGV_BYTE); | |
231 | else if (pos > ZV) | |
232 | SET_PT_BOTH (ZV, ZV_BYTE); | |
233 | else | |
234 | SET_PT_BOTH (pos, marker_byte_position (position)); | |
235 | ||
236 | return position; | |
237 | } | |
238 | ||
b7826503 | 239 | CHECK_NUMBER_COERCE_MARKER (position); |
35692fe0 | 240 | |
fb8106e8 | 241 | pos = clip_to_bounds (BEGV, XINT (position), ZV); |
fb8106e8 | 242 | SET_PT (pos); |
2591ec64 | 243 | return position; |
35692fe0 JB |
244 | } |
245 | ||
acb7cc89 GM |
246 | |
247 | /* Return the start or end position of the region. | |
a08d4ba7 | 248 | BEGINNINGP means return the start. |
acb7cc89 GM |
249 | If there is no region active, signal an error. */ |
250 | ||
35692fe0 | 251 | static Lisp_Object |
a08d4ba7 | 252 | region_limit (bool beginningp) |
35692fe0 | 253 | { |
acb7cc89 | 254 | Lisp_Object m; |
177c0ea7 | 255 | |
acb7cc89 GM |
256 | if (!NILP (Vtransient_mark_mode) |
257 | && NILP (Vmark_even_if_inactive) | |
4b4deea2 | 258 | && NILP (BVAR (current_buffer, mark_active))) |
8a0ff744 | 259 | xsignal0 (Qmark_inactive); |
177c0ea7 | 260 | |
4b4deea2 | 261 | m = Fmarker_position (BVAR (current_buffer, mark)); |
acb7cc89 | 262 | if (NILP (m)) |
7b5ad687 | 263 | error ("The mark is not set now, so there is no region"); |
177c0ea7 | 264 | |
f520ef9b | 265 | /* Clip to the current narrowing (bug#11770). */ |
a08d4ba7 | 266 | return make_number ((PT < XFASTINT (m)) == beginningp |
f520ef9b PE |
267 | ? PT |
268 | : clip_to_bounds (BEGV, XFASTINT (m), ZV)); | |
35692fe0 JB |
269 | } |
270 | ||
271 | DEFUN ("region-beginning", Fregion_beginning, Sregion_beginning, 0, 0, 0, | |
7b0815ba | 272 | doc: /* Return the integer value of point or mark, whichever is smaller. */) |
5842a27b | 273 | (void) |
35692fe0 | 274 | { |
acb7cc89 | 275 | return region_limit (1); |
35692fe0 JB |
276 | } |
277 | ||
278 | DEFUN ("region-end", Fregion_end, Sregion_end, 0, 0, 0, | |
7b0815ba | 279 | doc: /* Return the integer value of point or mark, whichever is larger. */) |
5842a27b | 280 | (void) |
35692fe0 | 281 | { |
acb7cc89 | 282 | return region_limit (0); |
35692fe0 JB |
283 | } |
284 | ||
35692fe0 | 285 | DEFUN ("mark-marker", Fmark_marker, Smark_marker, 0, 0, 0, |
7ee72033 | 286 | doc: /* Return this buffer's mark, as a marker object. |
a1f17501 | 287 | Watch out! Moving this marker changes the mark position. |
7ee72033 | 288 | If you set the marker not to point anywhere, the buffer will have no mark. */) |
5842a27b | 289 | (void) |
35692fe0 | 290 | { |
4b4deea2 | 291 | return BVAR (current_buffer, mark); |
35692fe0 | 292 | } |
acb7cc89 | 293 | |
c9ed721d | 294 | \f |
58401a34 SM |
295 | /* Find all the overlays in the current buffer that touch position POS. |
296 | Return the number found, and store them in a vector in VEC | |
297 | of length LEN. */ | |
298 | ||
b081724f PE |
299 | static ptrdiff_t |
300 | overlays_around (EMACS_INT pos, Lisp_Object *vec, ptrdiff_t len) | |
58401a34 | 301 | { |
88006f77 SM |
302 | Lisp_Object overlay, start, end; |
303 | struct Lisp_Overlay *tail; | |
d311d28c | 304 | ptrdiff_t startpos, endpos; |
b081724f | 305 | ptrdiff_t idx = 0; |
58401a34 | 306 | |
fd318b54 | 307 | for (tail = current_buffer->overlays_before; tail; tail = tail->next) |
58401a34 | 308 | { |
88006f77 | 309 | XSETMISC (overlay, tail); |
58401a34 SM |
310 | |
311 | end = OVERLAY_END (overlay); | |
312 | endpos = OVERLAY_POSITION (end); | |
313 | if (endpos < pos) | |
314 | break; | |
315 | start = OVERLAY_START (overlay); | |
316 | startpos = OVERLAY_POSITION (start); | |
317 | if (startpos <= pos) | |
318 | { | |
319 | if (idx < len) | |
320 | vec[idx] = overlay; | |
321 | /* Keep counting overlays even if we can't return them all. */ | |
322 | idx++; | |
323 | } | |
324 | } | |
325 | ||
fd318b54 | 326 | for (tail = current_buffer->overlays_after; tail; tail = tail->next) |
58401a34 | 327 | { |
88006f77 | 328 | XSETMISC (overlay, tail); |
58401a34 SM |
329 | |
330 | start = OVERLAY_START (overlay); | |
331 | startpos = OVERLAY_POSITION (start); | |
332 | if (pos < startpos) | |
333 | break; | |
334 | end = OVERLAY_END (overlay); | |
335 | endpos = OVERLAY_POSITION (end); | |
336 | if (pos <= endpos) | |
337 | { | |
338 | if (idx < len) | |
339 | vec[idx] = overlay; | |
340 | idx++; | |
341 | } | |
342 | } | |
343 | ||
344 | return idx; | |
345 | } | |
346 | ||
347 | /* Return the value of property PROP, in OBJECT at POSITION. | |
348 | It's the value of PROP that a char inserted at POSITION would get. | |
349 | OBJECT is optional and defaults to the current buffer. | |
350 | If OBJECT is a buffer, then overlay properties are considered as well as | |
351 | text properties. | |
352 | If OBJECT is a window, then that window's buffer is used, but | |
353 | window-specific overlays are considered only if they are associated | |
354 | with OBJECT. */ | |
538f9462 | 355 | Lisp_Object |
971de7fb | 356 | get_pos_property (Lisp_Object position, register Lisp_Object prop, Lisp_Object object) |
58401a34 | 357 | { |
58401a34 SM |
358 | CHECK_NUMBER_COERCE_MARKER (position); |
359 | ||
360 | if (NILP (object)) | |
361 | XSETBUFFER (object, current_buffer); | |
dfe6cbf8 | 362 | else if (WINDOWP (object)) |
d3d50620 | 363 | object = XWINDOW (object)->buffer; |
dfe6cbf8 SM |
364 | |
365 | if (!BUFFERP (object)) | |
366 | /* pos-property only makes sense in buffers right now, since strings | |
367 | have no overlays and no notion of insertion for which stickiness | |
368 | could be obeyed. */ | |
369 | return Fget_text_property (position, prop, object); | |
370 | else | |
58401a34 | 371 | { |
29cdc13e | 372 | EMACS_INT posn = XINT (position); |
b081724f | 373 | ptrdiff_t noverlays; |
58401a34 SM |
374 | Lisp_Object *overlay_vec, tem; |
375 | struct buffer *obuf = current_buffer; | |
376 | ||
377 | set_buffer_temp (XBUFFER (object)); | |
378 | ||
379 | /* First try with room for 40 overlays. */ | |
380 | noverlays = 40; | |
38182d90 | 381 | overlay_vec = alloca (noverlays * sizeof *overlay_vec); |
58401a34 SM |
382 | noverlays = overlays_around (posn, overlay_vec, noverlays); |
383 | ||
384 | /* If there are more than 40, | |
385 | make enough space for all, and try again. */ | |
386 | if (noverlays > 40) | |
387 | { | |
38182d90 | 388 | overlay_vec = alloca (noverlays * sizeof *overlay_vec); |
58401a34 SM |
389 | noverlays = overlays_around (posn, overlay_vec, noverlays); |
390 | } | |
391 | noverlays = sort_overlays (overlay_vec, noverlays, NULL); | |
392 | ||
393 | set_buffer_temp (obuf); | |
394 | ||
395 | /* Now check the overlays in order of decreasing priority. */ | |
396 | while (--noverlays >= 0) | |
397 | { | |
398 | Lisp_Object ol = overlay_vec[noverlays]; | |
399 | tem = Foverlay_get (ol, prop); | |
400 | if (!NILP (tem)) | |
401 | { | |
402 | /* Check the overlay is indeed active at point. */ | |
403 | Lisp_Object start = OVERLAY_START (ol), finish = OVERLAY_END (ol); | |
404 | if ((OVERLAY_POSITION (start) == posn | |
405 | && XMARKER (start)->insertion_type == 1) | |
406 | || (OVERLAY_POSITION (finish) == posn | |
407 | && XMARKER (finish)->insertion_type == 0)) | |
408 | ; /* The overlay will not cover a char inserted at point. */ | |
409 | else | |
410 | { | |
411 | return tem; | |
412 | } | |
413 | } | |
414 | } | |
177c0ea7 | 415 | |
7a6a86ad | 416 | { /* Now check the text properties. */ |
dfe6cbf8 SM |
417 | int stickiness = text_property_stickiness (prop, position, object); |
418 | if (stickiness > 0) | |
419 | return Fget_text_property (position, prop, object); | |
420 | else if (stickiness < 0 | |
421 | && XINT (position) > BUF_BEGV (XBUFFER (object))) | |
422 | return Fget_text_property (make_number (XINT (position) - 1), | |
423 | prop, object); | |
424 | else | |
425 | return Qnil; | |
426 | } | |
58401a34 | 427 | } |
58401a34 SM |
428 | } |
429 | ||
a3caef99 | 430 | /* Find the field surrounding POS in *BEG and *END. If POS is nil, |
59062dce | 431 | the value of point is used instead. If BEG or END is null, |
acb7cc89 | 432 | means don't store the beginning or end of the field. |
a3caef99 | 433 | |
9ac741c5 MB |
434 | BEG_LIMIT and END_LIMIT serve to limit the ranged of the returned |
435 | results; they do not effect boundary behavior. | |
436 | ||
a08d4ba7 | 437 | If MERGE_AT_BOUNDARY is non-nil, then if POS is at the very first |
ee547125 MB |
438 | position of a field, then the beginning of the previous field is |
439 | returned instead of the beginning of POS's field (since the end of a | |
440 | field is actually also the beginning of the next input field, this | |
441 | behavior is sometimes useful). Additionally in the MERGE_AT_BOUNDARY | |
a08d4ba7 | 442 | non-nil case, if two fields are separated by a field with the special |
ee547125 MB |
443 | value `boundary', and POS lies within it, then the two separated |
444 | fields are considered to be adjacent, and POS between them, when | |
445 | finding the beginning and ending of the "merged" field. | |
a3caef99 RS |
446 | |
447 | Either BEG or END may be 0, in which case the corresponding value | |
448 | is not stored. */ | |
449 | ||
acb7cc89 | 450 | static void |
413d18e7 EZ |
451 | find_field (Lisp_Object pos, Lisp_Object merge_at_boundary, |
452 | Lisp_Object beg_limit, | |
d311d28c | 453 | ptrdiff_t *beg, Lisp_Object end_limit, ptrdiff_t *end) |
0daf6e8d | 454 | { |
ee547125 MB |
455 | /* Fields right before and after the point. */ |
456 | Lisp_Object before_field, after_field; | |
a08d4ba7 PE |
457 | /* True if POS counts as the start of a field. */ |
458 | bool at_field_start = 0; | |
459 | /* True if POS counts as the end of a field. */ | |
460 | bool at_field_end = 0; | |
ee547125 | 461 | |
0daf6e8d GM |
462 | if (NILP (pos)) |
463 | XSETFASTINT (pos, PT); | |
464 | else | |
b7826503 | 465 | CHECK_NUMBER_COERCE_MARKER (pos); |
0daf6e8d | 466 | |
acb7cc89 | 467 | after_field |
58401a34 | 468 | = get_char_property_and_overlay (pos, Qfield, Qnil, NULL); |
acb7cc89 GM |
469 | before_field |
470 | = (XFASTINT (pos) > BEGV | |
7ae1c032 | 471 | ? get_char_property_and_overlay (make_number (XINT (pos) - 1), |
58401a34 | 472 | Qfield, Qnil, NULL) |
e477bb04 KL |
473 | /* Using nil here would be a more obvious choice, but it would |
474 | fail when the buffer starts with a non-sticky field. */ | |
475 | : after_field); | |
ee547125 MB |
476 | |
477 | /* See if we need to handle the case where MERGE_AT_BOUNDARY is nil | |
478 | and POS is at beginning of a field, which can also be interpreted | |
479 | as the end of the previous field. Note that the case where if | |
480 | MERGE_AT_BOUNDARY is non-nil (see function comment) is actually the | |
481 | more natural one; then we avoid treating the beginning of a field | |
482 | specially. */ | |
58401a34 | 483 | if (NILP (merge_at_boundary)) |
ee547125 | 484 | { |
58401a34 SM |
485 | Lisp_Object field = get_pos_property (pos, Qfield, Qnil); |
486 | if (!EQ (field, after_field)) | |
ee547125 | 487 | at_field_end = 1; |
58401a34 SM |
488 | if (!EQ (field, before_field)) |
489 | at_field_start = 1; | |
2db1186a SM |
490 | if (NILP (field) && at_field_start && at_field_end) |
491 | /* If an inserted char would have a nil field while the surrounding | |
492 | text is non-nil, we're probably not looking at a | |
493 | zero-length field, but instead at a non-nil field that's | |
494 | not intended for editing (such as comint's prompts). */ | |
495 | at_field_end = at_field_start = 0; | |
0daf6e8d GM |
496 | } |
497 | ||
ee547125 MB |
498 | /* Note about special `boundary' fields: |
499 | ||
500 | Consider the case where the point (`.') is between the fields `x' and `y': | |
501 | ||
502 | xxxx.yyyy | |
503 | ||
a08d4ba7 | 504 | In this situation, if merge_at_boundary is non-nil, consider the |
ee547125 MB |
505 | `x' and `y' fields as forming one big merged field, and so the end |
506 | of the field is the end of `y'. | |
507 | ||
508 | However, if `x' and `y' are separated by a special `boundary' field | |
a08d4ba7 | 509 | (a field with a `field' char-property of 'boundary), then ignore |
ee547125 MB |
510 | this special field when merging adjacent fields. Here's the same |
511 | situation, but with a `boundary' field between the `x' and `y' fields: | |
512 | ||
513 | xxx.BBBByyyy | |
514 | ||
515 | Here, if point is at the end of `x', the beginning of `y', or | |
a08d4ba7 | 516 | anywhere in-between (within the `boundary' field), merge all |
ee547125 MB |
517 | three fields and consider the beginning as being the beginning of |
518 | the `x' field, and the end as being the end of the `y' field. */ | |
519 | ||
0daf6e8d | 520 | if (beg) |
acb7cc89 GM |
521 | { |
522 | if (at_field_start) | |
523 | /* POS is at the edge of a field, and we should consider it as | |
524 | the beginning of the following field. */ | |
525 | *beg = XFASTINT (pos); | |
526 | else | |
527 | /* Find the previous field boundary. */ | |
528 | { | |
58401a34 | 529 | Lisp_Object p = pos; |
acb7cc89 GM |
530 | if (!NILP (merge_at_boundary) && EQ (before_field, Qboundary)) |
531 | /* Skip a `boundary' field. */ | |
58401a34 | 532 | p = Fprevious_single_char_property_change (p, Qfield, Qnil, |
9ac741c5 | 533 | beg_limit); |
58401a34 SM |
534 | |
535 | p = Fprevious_single_char_property_change (p, Qfield, Qnil, | |
536 | beg_limit); | |
537 | *beg = NILP (p) ? BEGV : XFASTINT (p); | |
acb7cc89 GM |
538 | } |
539 | } | |
0daf6e8d GM |
540 | |
541 | if (end) | |
acb7cc89 GM |
542 | { |
543 | if (at_field_end) | |
544 | /* POS is at the edge of a field, and we should consider it as | |
545 | the end of the previous field. */ | |
546 | *end = XFASTINT (pos); | |
547 | else | |
548 | /* Find the next field boundary. */ | |
549 | { | |
550 | if (!NILP (merge_at_boundary) && EQ (after_field, Qboundary)) | |
551 | /* Skip a `boundary' field. */ | |
9ac741c5 MB |
552 | pos = Fnext_single_char_property_change (pos, Qfield, Qnil, |
553 | end_limit); | |
ee547125 | 554 | |
9ac741c5 MB |
555 | pos = Fnext_single_char_property_change (pos, Qfield, Qnil, |
556 | end_limit); | |
acb7cc89 GM |
557 | *end = NILP (pos) ? ZV : XFASTINT (pos); |
558 | } | |
559 | } | |
0daf6e8d | 560 | } |
acb7cc89 | 561 | |
0daf6e8d | 562 | \f |
d01f3570 | 563 | DEFUN ("delete-field", Fdelete_field, Sdelete_field, 0, 1, 0, |
7ee72033 | 564 | doc: /* Delete the field surrounding POS. |
a1f17501 | 565 | A field is a region of text with the same `field' property. |
f554db0f | 566 | If POS is nil, the value of point is used for POS. */) |
5842a27b | 567 | (Lisp_Object pos) |
0daf6e8d | 568 | { |
d311d28c | 569 | ptrdiff_t beg, end; |
9ac741c5 | 570 | find_field (pos, Qnil, Qnil, &beg, Qnil, &end); |
0daf6e8d GM |
571 | if (beg != end) |
572 | del_range (beg, end); | |
d01f3570 | 573 | return Qnil; |
0daf6e8d GM |
574 | } |
575 | ||
576 | DEFUN ("field-string", Ffield_string, Sfield_string, 0, 1, 0, | |
7ee72033 | 577 | doc: /* Return the contents of the field surrounding POS as a string. |
a1f17501 | 578 | A field is a region of text with the same `field' property. |
f554db0f | 579 | If POS is nil, the value of point is used for POS. */) |
5842a27b | 580 | (Lisp_Object pos) |
0daf6e8d | 581 | { |
d311d28c | 582 | ptrdiff_t beg, end; |
9ac741c5 | 583 | find_field (pos, Qnil, Qnil, &beg, Qnil, &end); |
0daf6e8d GM |
584 | return make_buffer_string (beg, end, 1); |
585 | } | |
586 | ||
587 | DEFUN ("field-string-no-properties", Ffield_string_no_properties, Sfield_string_no_properties, 0, 1, 0, | |
7a6a86ad | 588 | doc: /* Return the contents of the field around POS, without text properties. |
a1f17501 | 589 | A field is a region of text with the same `field' property. |
f554db0f | 590 | If POS is nil, the value of point is used for POS. */) |
5842a27b | 591 | (Lisp_Object pos) |
0daf6e8d | 592 | { |
d311d28c | 593 | ptrdiff_t beg, end; |
9ac741c5 | 594 | find_field (pos, Qnil, Qnil, &beg, Qnil, &end); |
0daf6e8d GM |
595 | return make_buffer_string (beg, end, 0); |
596 | } | |
597 | ||
9ac741c5 | 598 | DEFUN ("field-beginning", Ffield_beginning, Sfield_beginning, 0, 3, 0, |
7ee72033 | 599 | doc: /* Return the beginning of the field surrounding POS. |
a1f17501 PJ |
600 | A field is a region of text with the same `field' property. |
601 | If POS is nil, the value of point is used for POS. | |
602 | If ESCAPE-FROM-EDGE is non-nil and POS is at the beginning of its | |
9ac741c5 MB |
603 | field, then the beginning of the *previous* field is returned. |
604 | If LIMIT is non-nil, it is a buffer position; if the beginning of the field | |
f554db0f | 605 | is before LIMIT, then LIMIT will be returned instead. */) |
5842a27b | 606 | (Lisp_Object pos, Lisp_Object escape_from_edge, Lisp_Object limit) |
0daf6e8d | 607 | { |
d311d28c | 608 | ptrdiff_t beg; |
9ac741c5 | 609 | find_field (pos, escape_from_edge, limit, &beg, Qnil, 0); |
0daf6e8d GM |
610 | return make_number (beg); |
611 | } | |
612 | ||
a7ca3326 | 613 | DEFUN ("field-end", Ffield_end, Sfield_end, 0, 3, 0, |
7ee72033 | 614 | doc: /* Return the end of the field surrounding POS. |
a1f17501 PJ |
615 | A field is a region of text with the same `field' property. |
616 | If POS is nil, the value of point is used for POS. | |
617 | If ESCAPE-FROM-EDGE is non-nil and POS is at the end of its field, | |
9ac741c5 MB |
618 | then the end of the *following* field is returned. |
619 | If LIMIT is non-nil, it is a buffer position; if the end of the field | |
f554db0f | 620 | is after LIMIT, then LIMIT will be returned instead. */) |
5842a27b | 621 | (Lisp_Object pos, Lisp_Object escape_from_edge, Lisp_Object limit) |
0daf6e8d | 622 | { |
d311d28c | 623 | ptrdiff_t end; |
9ac741c5 | 624 | find_field (pos, escape_from_edge, Qnil, 0, limit, &end); |
0daf6e8d GM |
625 | return make_number (end); |
626 | } | |
627 | ||
a7ca3326 | 628 | DEFUN ("constrain-to-field", Fconstrain_to_field, Sconstrain_to_field, 2, 5, 0, |
7ee72033 | 629 | doc: /* Return the position closest to NEW-POS that is in the same field as OLD-POS. |
a1f17501 | 630 | A field is a region of text with the same `field' property. |
66c5eebd CY |
631 | |
632 | If NEW-POS is nil, then use the current point instead, and move point | |
633 | to the resulting constrained position, in addition to returning that | |
634 | position. | |
a1f17501 PJ |
635 | |
636 | If OLD-POS is at the boundary of two fields, then the allowable | |
637 | positions for NEW-POS depends on the value of the optional argument | |
638 | ESCAPE-FROM-EDGE: If ESCAPE-FROM-EDGE is nil, then NEW-POS is | |
639 | constrained to the field that has the same `field' char-property | |
640 | as any new characters inserted at OLD-POS, whereas if ESCAPE-FROM-EDGE | |
641 | is non-nil, NEW-POS is constrained to the union of the two adjacent | |
642 | fields. Additionally, if two fields are separated by another field with | |
643 | the special value `boundary', then any point within this special field is | |
644 | also considered to be `on the boundary'. | |
645 | ||
646 | If the optional argument ONLY-IN-LINE is non-nil and constraining | |
647 | NEW-POS would move it to a different line, NEW-POS is returned | |
648 | unconstrained. This useful for commands that move by line, like | |
649 | \\[next-line] or \\[beginning-of-line], which should generally respect field boundaries | |
650 | only in the case where they can still move to the right line. | |
651 | ||
652 | If the optional argument INHIBIT-CAPTURE-PROPERTY is non-nil, and OLD-POS has | |
653 | a non-nil property of that name, then any field boundaries are ignored. | |
654 | ||
7ee72033 | 655 | Field boundaries are not noticed if `inhibit-field-text-motion' is non-nil. */) |
5842a27b | 656 | (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 |
657 | { |
658 | /* If non-zero, then the original point, before re-positioning. */ | |
d311d28c | 659 | ptrdiff_t orig_point = 0; |
a08d4ba7 | 660 | bool fwd; |
d63b4018 | 661 | Lisp_Object prev_old, prev_new; |
aac18aa4 | 662 | |
0daf6e8d GM |
663 | if (NILP (new_pos)) |
664 | /* Use the current point, and afterwards, set it. */ | |
665 | { | |
666 | orig_point = PT; | |
667 | XSETFASTINT (new_pos, PT); | |
668 | } | |
669 | ||
e477bb04 KL |
670 | CHECK_NUMBER_COERCE_MARKER (new_pos); |
671 | CHECK_NUMBER_COERCE_MARKER (old_pos); | |
672 | ||
d311d28c | 673 | fwd = (XINT (new_pos) > XINT (old_pos)); |
e477bb04 | 674 | |
d311d28c PE |
675 | prev_old = make_number (XINT (old_pos) - 1); |
676 | prev_new = make_number (XINT (new_pos) - 1); | |
aac18aa4 | 677 | |
ee5cd4db GM |
678 | if (NILP (Vinhibit_field_text_motion) |
679 | && !EQ (new_pos, old_pos) | |
42ab8e36 MB |
680 | && (!NILP (Fget_char_property (new_pos, Qfield, Qnil)) |
681 | || !NILP (Fget_char_property (old_pos, Qfield, Qnil)) | |
e477bb04 KL |
682 | /* To recognize field boundaries, we must also look at the |
683 | previous positions; we could use `get_pos_property' | |
684 | instead, but in itself that would fail inside non-sticky | |
685 | fields (like comint prompts). */ | |
686 | || (XFASTINT (new_pos) > BEGV | |
42ab8e36 | 687 | && !NILP (Fget_char_property (prev_new, Qfield, Qnil))) |
e477bb04 | 688 | || (XFASTINT (old_pos) > BEGV |
42ab8e36 | 689 | && !NILP (Fget_char_property (prev_old, Qfield, Qnil)))) |
ee547125 | 690 | && (NILP (inhibit_capture_property) |
e477bb04 KL |
691 | /* Field boundaries are again a problem; but now we must |
692 | decide the case exactly, so we need to call | |
693 | `get_pos_property' as well. */ | |
694 | || (NILP (get_pos_property (old_pos, inhibit_capture_property, Qnil)) | |
695 | && (XFASTINT (old_pos) <= BEGV | |
42ab8e36 MB |
696 | || NILP (Fget_char_property (old_pos, inhibit_capture_property, Qnil)) |
697 | || NILP (Fget_char_property (prev_old, inhibit_capture_property, Qnil)))))) | |
2cb3aec4 KL |
698 | /* It is possible that NEW_POS is not within the same field as |
699 | OLD_POS; try to move NEW_POS so that it is. */ | |
0daf6e8d | 700 | { |
d311d28c | 701 | ptrdiff_t shortage; |
0daf6e8d GM |
702 | Lisp_Object field_bound; |
703 | ||
0daf6e8d | 704 | if (fwd) |
9ac741c5 | 705 | field_bound = Ffield_end (old_pos, escape_from_edge, new_pos); |
0daf6e8d | 706 | else |
9ac741c5 | 707 | field_bound = Ffield_beginning (old_pos, escape_from_edge, new_pos); |
0daf6e8d | 708 | |
10b0f752 MB |
709 | if (/* See if ESCAPE_FROM_EDGE caused FIELD_BOUND to jump to the |
710 | other side of NEW_POS, which would mean that NEW_POS is | |
711 | already acceptable, and it's not necessary to constrain it | |
712 | to FIELD_BOUND. */ | |
713 | ((XFASTINT (field_bound) < XFASTINT (new_pos)) ? fwd : !fwd) | |
714 | /* NEW_POS should be constrained, but only if either | |
715 | ONLY_IN_LINE is nil (in which case any constraint is OK), | |
716 | or NEW_POS and FIELD_BOUND are on the same line (in which | |
717 | case the constraint is OK even if ONLY_IN_LINE is non-nil). */ | |
718 | && (NILP (only_in_line) | |
719 | /* This is the ONLY_IN_LINE case, check that NEW_POS and | |
720 | FIELD_BOUND are on the same line by seeing whether | |
721 | there's an intervening newline or not. */ | |
722 | || (scan_buffer ('\n', | |
723 | XFASTINT (new_pos), XFASTINT (field_bound), | |
724 | fwd ? -1 : 1, &shortage, 1), | |
725 | shortage != 0))) | |
0daf6e8d GM |
726 | /* Constrain NEW_POS to FIELD_BOUND. */ |
727 | new_pos = field_bound; | |
728 | ||
729 | if (orig_point && XFASTINT (new_pos) != orig_point) | |
730 | /* The NEW_POS argument was originally nil, so automatically set PT. */ | |
731 | SET_PT (XFASTINT (new_pos)); | |
732 | } | |
733 | ||
734 | return new_pos; | |
735 | } | |
acb7cc89 | 736 | |
0daf6e8d | 737 | \f |
a7ca3326 | 738 | DEFUN ("line-beginning-position", |
6d57c318 | 739 | Fline_beginning_position, Sline_beginning_position, 0, 1, 0, |
7ee72033 | 740 | doc: /* Return the character position of the first character on the current line. |
c88b867f CY |
741 | With optional argument N, scan forward N - 1 lines first. |
742 | If the scan reaches the end of the buffer, return that position. | |
6d57c318 | 743 | |
c88b867f CY |
744 | This function ignores text display directionality; it returns the |
745 | position of the first character in logical order, i.e. the smallest | |
746 | character position on the line. | |
cd21226d | 747 | |
2cb3aec4 | 748 | This function constrains the returned position to the current field |
c88b867f | 749 | unless that position would be on a different line than the original, |
2cb3aec4 KL |
750 | unconstrained result. If N is nil or 1, and a front-sticky field |
751 | starts at point, the scan stops as soon as it starts. To ignore field | |
c88b867f | 752 | boundaries, bind `inhibit-field-text-motion' to t. |
a1f17501 | 753 | |
7ee72033 | 754 | This function does not move point. */) |
5842a27b | 755 | (Lisp_Object n) |
c9ed721d | 756 | { |
d311d28c PE |
757 | ptrdiff_t orig, orig_byte, end; |
758 | ptrdiff_t count = SPECPDL_INDEX (); | |
4e8f005c | 759 | specbind (Qinhibit_point_motion_hooks, Qt); |
c9ed721d RS |
760 | |
761 | if (NILP (n)) | |
762 | XSETFASTINT (n, 1); | |
763 | else | |
b7826503 | 764 | CHECK_NUMBER (n); |
c9ed721d RS |
765 | |
766 | orig = PT; | |
ec1c14f6 | 767 | orig_byte = PT_BYTE; |
c9ed721d RS |
768 | Fforward_line (make_number (XINT (n) - 1)); |
769 | end = PT; | |
e2dae3f2 | 770 | |
ec1c14f6 | 771 | SET_PT_BOTH (orig, orig_byte); |
35692fe0 | 772 | |
4e8f005c CY |
773 | unbind_to (count, Qnil); |
774 | ||
0daf6e8d | 775 | /* Return END constrained to the current input field. */ |
ee5cd4db GM |
776 | return Fconstrain_to_field (make_number (end), make_number (orig), |
777 | XINT (n) != 1 ? Qt : Qnil, | |
ee547125 | 778 | Qt, Qnil); |
c9ed721d RS |
779 | } |
780 | ||
a7ca3326 | 781 | DEFUN ("line-end-position", Fline_end_position, Sline_end_position, 0, 1, 0, |
7ee72033 | 782 | doc: /* Return the character position of the last character on the current line. |
a1f17501 PJ |
783 | With argument N not nil or 1, move forward N - 1 lines first. |
784 | If scan reaches end of buffer, return that position. | |
6d57c318 | 785 | |
c88b867f CY |
786 | This function ignores text display directionality; it returns the |
787 | position of the last character in logical order, i.e. the largest | |
788 | character position on the line. | |
cd21226d | 789 | |
2cb3aec4 KL |
790 | This function constrains the returned position to the current field |
791 | unless that would be on a different line than the original, | |
792 | unconstrained result. If N is nil or 1, and a rear-sticky field ends | |
793 | at point, the scan stops as soon as it starts. To ignore field | |
6d57c318 MB |
794 | boundaries bind `inhibit-field-text-motion' to t. |
795 | ||
7ee72033 | 796 | This function does not move point. */) |
5842a27b | 797 | (Lisp_Object n) |
c9ed721d | 798 | { |
d311d28c PE |
799 | ptrdiff_t clipped_n; |
800 | ptrdiff_t end_pos; | |
801 | ptrdiff_t orig = PT; | |
0daf6e8d | 802 | |
c9ed721d RS |
803 | if (NILP (n)) |
804 | XSETFASTINT (n, 1); | |
805 | else | |
b7826503 | 806 | CHECK_NUMBER (n); |
c9ed721d | 807 | |
d311d28c PE |
808 | clipped_n = clip_to_bounds (PTRDIFF_MIN + 1, XINT (n), PTRDIFF_MAX); |
809 | end_pos = find_before_next_newline (orig, 0, clipped_n - (clipped_n <= 0)); | |
0daf6e8d GM |
810 | |
811 | /* Return END_POS constrained to the current input field. */ | |
ee5cd4db | 812 | return Fconstrain_to_field (make_number (end_pos), make_number (orig), |
ee547125 | 813 | Qnil, Qt, Qnil); |
c9ed721d | 814 | } |
6d57c318 | 815 | |
62c2e5ed DA |
816 | /* Save current buffer state for `save-excursion' special form. |
817 | We (ab)use Lisp_Misc_Save_Value to allow explicit free and so | |
818 | offload some work from GC. */ | |
819 | ||
35692fe0 | 820 | Lisp_Object |
971de7fb | 821 | save_excursion_save (void) |
35692fe0 | 822 | { |
62c2e5ed DA |
823 | Lisp_Object save, *data = xmalloc (word_size * 4); |
824 | ||
825 | data[0] = Fpoint_marker (); | |
549c3414 | 826 | /* Do not copy the mark if it points to nowhere. */ |
62c2e5ed DA |
827 | data[1] = (XMARKER (BVAR (current_buffer, mark))->buffer |
828 | ? Fcopy_marker (BVAR (current_buffer, mark), Qnil) | |
829 | : Qnil); | |
830 | /* Selected window if current buffer is shown in it, nil otherwise. */ | |
831 | data[2] = ((XBUFFER (XWINDOW (selected_window)->buffer) == current_buffer) | |
832 | ? selected_window : Qnil); | |
833 | data[3] = BVAR (current_buffer, mark_active); | |
834 | ||
835 | save = make_save_value (data, 4); | |
836 | XSAVE_VALUE (save)->dogc = 1; | |
837 | return save; | |
35692fe0 JB |
838 | } |
839 | ||
62c2e5ed DA |
840 | /* Restore saved buffer before leaving `save-excursion' special form. */ |
841 | ||
35692fe0 | 842 | Lisp_Object |
eeaea515 | 843 | save_excursion_restore (Lisp_Object info) |
35692fe0 | 844 | { |
62c2e5ed | 845 | Lisp_Object tem, tem1, omark, nmark, *data = XSAVE_VALUE (info)->pointer; |
eeaea515 | 846 | struct gcpro gcpro1, gcpro2, gcpro3; |
eeaea515 | 847 | |
62c2e5ed DA |
848 | tem = Fmarker_buffer (data[0]); |
849 | /* If we're unwinding to top level, saved buffer may be deleted. This | |
850 | means that all of its markers are unchained and so tem is nil. */ | |
eeaea515 | 851 | if (NILP (tem)) |
62c2e5ed | 852 | goto out; |
eeaea515 DA |
853 | |
854 | omark = nmark = Qnil; | |
855 | GCPRO3 (info, omark, nmark); | |
856 | ||
857 | Fset_buffer (tem); | |
858 | ||
859 | /* Point marker. */ | |
62c2e5ed | 860 | tem = data[0]; |
eeaea515 DA |
861 | Fgoto_char (tem); |
862 | unchain_marker (XMARKER (tem)); | |
863 | ||
864 | /* Mark marker. */ | |
62c2e5ed | 865 | tem = data[1]; |
eeaea515 | 866 | omark = Fmarker_position (BVAR (current_buffer, mark)); |
549c3414 DA |
867 | if (NILP (tem)) |
868 | unchain_marker (XMARKER (BVAR (current_buffer, mark))); | |
869 | else | |
870 | { | |
871 | Fset_marker (BVAR (current_buffer, mark), tem, Fcurrent_buffer ()); | |
872 | nmark = Fmarker_position (tem); | |
873 | unchain_marker (XMARKER (tem)); | |
874 | } | |
eeaea515 | 875 | |
62c2e5ed DA |
876 | /* Mark active. */ |
877 | tem = data[3]; | |
eeaea515 | 878 | tem1 = BVAR (current_buffer, mark_active); |
39eb03f1 | 879 | bset_mark_active (current_buffer, tem); |
eeaea515 DA |
880 | |
881 | /* If mark is active now, and either was not active | |
882 | or was at a different place, run the activate hook. */ | |
883 | if (! NILP (tem)) | |
dee091a3 | 884 | { |
eeaea515 DA |
885 | if (! EQ (omark, nmark)) |
886 | { | |
887 | tem = intern ("activate-mark-hook"); | |
888 | Frun_hooks (1, &tem); | |
889 | } | |
890 | } | |
891 | /* If mark has ceased to be active, run deactivate hook. */ | |
892 | else if (! NILP (tem1)) | |
893 | { | |
894 | tem = intern ("deactivate-mark-hook"); | |
895 | Frun_hooks (1, &tem); | |
9fed2b18 | 896 | } |
2483cf58 | 897 | |
eeaea515 DA |
898 | /* If buffer was visible in a window, and a different window was |
899 | selected, and the old selected window is still showing this | |
900 | buffer, restore point in that window. */ | |
62c2e5ed DA |
901 | tem = data[2]; |
902 | if (WINDOWP (tem) | |
eeaea515 | 903 | && !EQ (tem, selected_window) |
d3d50620 | 904 | && (tem1 = XWINDOW (tem)->buffer, |
eeaea515 DA |
905 | (/* Window is live... */ |
906 | BUFFERP (tem1) | |
907 | /* ...and it shows the current buffer. */ | |
908 | && XBUFFER (tem1) == current_buffer))) | |
909 | Fset_window_point (tem, make_number (PT)); | |
910 | ||
911 | UNGCPRO; | |
62c2e5ed DA |
912 | |
913 | out: | |
914 | ||
915 | free_save_value (info); | |
35692fe0 JB |
916 | return Qnil; |
917 | } | |
918 | ||
919 | DEFUN ("save-excursion", Fsave_excursion, Ssave_excursion, 0, UNEVALLED, 0, | |
7ee72033 | 920 | doc: /* Save point, mark, and current buffer; execute BODY; restore those things. |
a1f17501 PJ |
921 | Executes BODY just like `progn'. |
922 | The values of point, mark and the current buffer are restored | |
923 | even in case of abnormal exit (throw or error). | |
924 | The state of activation of the mark is also restored. | |
925 | ||
926 | This construct does not save `deactivate-mark', and therefore | |
927 | functions that change the buffer will still cause deactivation | |
928 | of the mark at the end of the command. To prevent that, bind | |
33c2d29f MB |
929 | `deactivate-mark' with `let'. |
930 | ||
7450fd36 SM |
931 | If you only want to save the current buffer but not point nor mark, |
932 | then just use `save-current-buffer', or even `with-current-buffer'. | |
933 | ||
33c2d29f | 934 | usage: (save-excursion &rest BODY) */) |
5842a27b | 935 | (Lisp_Object args) |
35692fe0 JB |
936 | { |
937 | register Lisp_Object val; | |
d311d28c | 938 | ptrdiff_t count = SPECPDL_INDEX (); |
35692fe0 JB |
939 | |
940 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
4bc8c7d2 RS |
941 | |
942 | val = Fprogn (args); | |
943 | return unbind_to (count, val); | |
944 | } | |
945 | ||
946 | DEFUN ("save-current-buffer", Fsave_current_buffer, Ssave_current_buffer, 0, UNEVALLED, 0, | |
4abcdac8 CY |
947 | doc: /* Record which buffer is current; execute BODY; make that buffer current. |
948 | BODY is executed just like `progn'. | |
33c2d29f | 949 | usage: (save-current-buffer &rest BODY) */) |
5842a27b | 950 | (Lisp_Object args) |
4bc8c7d2 | 951 | { |
d311d28c | 952 | ptrdiff_t count = SPECPDL_INDEX (); |
4bc8c7d2 | 953 | |
66322887 DA |
954 | record_unwind_current_buffer (); |
955 | return unbind_to (count, Fprogn (args)); | |
35692fe0 JB |
956 | } |
957 | \f | |
95dccf75 | 958 | DEFUN ("buffer-size", Fbufsize, Sbufsize, 0, 1, 0, |
7ee72033 MB |
959 | doc: /* Return the number of characters in the current buffer. |
960 | If BUFFER, return the number of characters in that buffer instead. */) | |
5842a27b | 961 | (Lisp_Object buffer) |
35692fe0 | 962 | { |
95dccf75 RS |
963 | if (NILP (buffer)) |
964 | return make_number (Z - BEG); | |
02050596 RS |
965 | else |
966 | { | |
b7826503 | 967 | CHECK_BUFFER (buffer); |
02050596 RS |
968 | return make_number (BUF_Z (XBUFFER (buffer)) |
969 | - BUF_BEG (XBUFFER (buffer))); | |
970 | } | |
35692fe0 JB |
971 | } |
972 | ||
973 | DEFUN ("point-min", Fpoint_min, Spoint_min, 0, 0, 0, | |
7ee72033 MB |
974 | doc: /* Return the minimum permissible value of point in the current buffer. |
975 | This is 1, unless narrowing (a buffer restriction) is in effect. */) | |
5842a27b | 976 | (void) |
35692fe0 JB |
977 | { |
978 | Lisp_Object temp; | |
55561c63 | 979 | XSETFASTINT (temp, BEGV); |
35692fe0 JB |
980 | return temp; |
981 | } | |
982 | ||
983 | DEFUN ("point-min-marker", Fpoint_min_marker, Spoint_min_marker, 0, 0, 0, | |
7ee72033 MB |
984 | doc: /* Return a marker to the minimum permissible value of point in this buffer. |
985 | This is the beginning, unless narrowing (a buffer restriction) is in effect. */) | |
5842a27b | 986 | (void) |
35692fe0 | 987 | { |
657924ff | 988 | return build_marker (current_buffer, BEGV, BEGV_BYTE); |
35692fe0 JB |
989 | } |
990 | ||
991 | DEFUN ("point-max", Fpoint_max, Spoint_max, 0, 0, 0, | |
7ee72033 | 992 | doc: /* Return the maximum permissible value of point in the current buffer. |
a1f17501 | 993 | This is (1+ (buffer-size)), unless narrowing (a buffer restriction) |
7ee72033 | 994 | is in effect, in which case it is less. */) |
5842a27b | 995 | (void) |
35692fe0 JB |
996 | { |
997 | Lisp_Object temp; | |
55561c63 | 998 | XSETFASTINT (temp, ZV); |
35692fe0 JB |
999 | return temp; |
1000 | } | |
1001 | ||
a7ca3326 | 1002 | DEFUN ("point-max-marker", Fpoint_max_marker, Spoint_max_marker, 0, 0, 0, |
7ee72033 | 1003 | doc: /* Return a marker to the maximum permissible value of point in this buffer. |
a1f17501 | 1004 | This is (1+ (buffer-size)), unless narrowing (a buffer restriction) |
7ee72033 | 1005 | is in effect, in which case it is less. */) |
5842a27b | 1006 | (void) |
35692fe0 | 1007 | { |
657924ff | 1008 | return build_marker (current_buffer, ZV, ZV_BYTE); |
35692fe0 JB |
1009 | } |
1010 | ||
c86212b9 | 1011 | DEFUN ("gap-position", Fgap_position, Sgap_position, 0, 0, 0, |
7ee72033 MB |
1012 | doc: /* Return the position of the gap, in the current buffer. |
1013 | See also `gap-size'. */) | |
5842a27b | 1014 | (void) |
c86212b9 RS |
1015 | { |
1016 | Lisp_Object temp; | |
1017 | XSETFASTINT (temp, GPT); | |
1018 | return temp; | |
1019 | } | |
1020 | ||
1021 | DEFUN ("gap-size", Fgap_size, Sgap_size, 0, 0, 0, | |
7ee72033 MB |
1022 | doc: /* Return the size of the current buffer's gap. |
1023 | See also `gap-position'. */) | |
5842a27b | 1024 | (void) |
c86212b9 RS |
1025 | { |
1026 | Lisp_Object temp; | |
1027 | XSETFASTINT (temp, GAP_SIZE); | |
1028 | return temp; | |
1029 | } | |
1030 | ||
7df74da6 | 1031 | DEFUN ("position-bytes", Fposition_bytes, Sposition_bytes, 1, 1, 0, |
7ee72033 MB |
1032 | doc: /* Return the byte position for character position POSITION. |
1033 | If POSITION is out of range, the value is nil. */) | |
5842a27b | 1034 | (Lisp_Object position) |
7df74da6 | 1035 | { |
b7826503 | 1036 | CHECK_NUMBER_COERCE_MARKER (position); |
fcf9683e KH |
1037 | if (XINT (position) < BEG || XINT (position) > Z) |
1038 | return Qnil; | |
fa8a5a15 | 1039 | return make_number (CHAR_TO_BYTE (XINT (position))); |
7df74da6 | 1040 | } |
3ab0732d RS |
1041 | |
1042 | DEFUN ("byte-to-position", Fbyte_to_position, Sbyte_to_position, 1, 1, 0, | |
7ee72033 MB |
1043 | doc: /* Return the character position for byte position BYTEPOS. |
1044 | If BYTEPOS is out of range, the value is nil. */) | |
5842a27b | 1045 | (Lisp_Object bytepos) |
3ab0732d | 1046 | { |
b7826503 | 1047 | CHECK_NUMBER (bytepos); |
fcf9683e KH |
1048 | if (XINT (bytepos) < BEG_BYTE || XINT (bytepos) > Z_BYTE) |
1049 | return Qnil; | |
3ab0732d RS |
1050 | return make_number (BYTE_TO_CHAR (XINT (bytepos))); |
1051 | } | |
7df74da6 | 1052 | \f |
a7ca3326 | 1053 | DEFUN ("following-char", Ffollowing_char, Sfollowing_char, 0, 0, 0, |
7ee72033 MB |
1054 | doc: /* Return the character following point, as a number. |
1055 | At the end of the buffer or accessible region, return 0. */) | |
5842a27b | 1056 | (void) |
35692fe0 JB |
1057 | { |
1058 | Lisp_Object temp; | |
6ec8bbd2 | 1059 | if (PT >= ZV) |
55561c63 | 1060 | XSETFASTINT (temp, 0); |
850a8179 | 1061 | else |
ec1c14f6 | 1062 | XSETFASTINT (temp, FETCH_CHAR (PT_BYTE)); |
35692fe0 JB |
1063 | return temp; |
1064 | } | |
1065 | ||
a7ca3326 | 1066 | DEFUN ("preceding-char", Fprevious_char, Sprevious_char, 0, 0, 0, |
7ee72033 MB |
1067 | doc: /* Return the character preceding point, as a number. |
1068 | At the beginning of the buffer or accessible region, return 0. */) | |
5842a27b | 1069 | (void) |
35692fe0 JB |
1070 | { |
1071 | Lisp_Object temp; | |
6ec8bbd2 | 1072 | if (PT <= BEGV) |
55561c63 | 1073 | XSETFASTINT (temp, 0); |
4b4deea2 | 1074 | else if (!NILP (BVAR (current_buffer, enable_multibyte_characters))) |
fb8106e8 | 1075 | { |
d311d28c | 1076 | ptrdiff_t pos = PT_BYTE; |
fb8106e8 KH |
1077 | DEC_POS (pos); |
1078 | XSETFASTINT (temp, FETCH_CHAR (pos)); | |
1079 | } | |
35692fe0 | 1080 | else |
ec1c14f6 | 1081 | XSETFASTINT (temp, FETCH_BYTE (PT_BYTE - 1)); |
35692fe0 JB |
1082 | return temp; |
1083 | } | |
1084 | ||
a7ca3326 | 1085 | DEFUN ("bobp", Fbobp, Sbobp, 0, 0, 0, |
7ee72033 MB |
1086 | doc: /* Return t if point is at the beginning of the buffer. |
1087 | If the buffer is narrowed, this means the beginning of the narrowed part. */) | |
5842a27b | 1088 | (void) |
35692fe0 | 1089 | { |
6ec8bbd2 | 1090 | if (PT == BEGV) |
35692fe0 JB |
1091 | return Qt; |
1092 | return Qnil; | |
1093 | } | |
1094 | ||
a7ca3326 | 1095 | DEFUN ("eobp", Feobp, Seobp, 0, 0, 0, |
7ee72033 MB |
1096 | doc: /* Return t if point is at the end of the buffer. |
1097 | If the buffer is narrowed, this means the end of the narrowed part. */) | |
5842a27b | 1098 | (void) |
35692fe0 | 1099 | { |
6ec8bbd2 | 1100 | if (PT == ZV) |
35692fe0 JB |
1101 | return Qt; |
1102 | return Qnil; | |
1103 | } | |
1104 | ||
a7ca3326 | 1105 | DEFUN ("bolp", Fbolp, Sbolp, 0, 0, 0, |
7ee72033 | 1106 | doc: /* Return t if point is at the beginning of a line. */) |
5842a27b | 1107 | (void) |
35692fe0 | 1108 | { |
ec1c14f6 | 1109 | if (PT == BEGV || FETCH_BYTE (PT_BYTE - 1) == '\n') |
35692fe0 JB |
1110 | return Qt; |
1111 | return Qnil; | |
1112 | } | |
1113 | ||
a7ca3326 | 1114 | DEFUN ("eolp", Feolp, Seolp, 0, 0, 0, |
7ee72033 MB |
1115 | doc: /* Return t if point is at the end of a line. |
1116 | `End of a line' includes point being at the end of the buffer. */) | |
5842a27b | 1117 | (void) |
35692fe0 | 1118 | { |
ec1c14f6 | 1119 | if (PT == ZV || FETCH_BYTE (PT_BYTE) == '\n') |
35692fe0 JB |
1120 | return Qt; |
1121 | return Qnil; | |
1122 | } | |
1123 | ||
a7ca3326 | 1124 | DEFUN ("char-after", Fchar_after, Schar_after, 0, 1, 0, |
7ee72033 | 1125 | doc: /* Return character in current buffer at position POS. |
f555f8cf | 1126 | POS is an integer or a marker and defaults to point. |
7ee72033 | 1127 | If POS is out of range, the value is nil. */) |
5842a27b | 1128 | (Lisp_Object pos) |
35692fe0 | 1129 | { |
d311d28c | 1130 | register ptrdiff_t pos_byte; |
35692fe0 | 1131 | |
fa1d3816 | 1132 | if (NILP (pos)) |
39a4c932 RS |
1133 | { |
1134 | pos_byte = PT_BYTE; | |
3c52e568 | 1135 | XSETFASTINT (pos, PT); |
39a4c932 RS |
1136 | } |
1137 | ||
1138 | if (MARKERP (pos)) | |
85cac557 RS |
1139 | { |
1140 | pos_byte = marker_byte_position (pos); | |
1141 | if (pos_byte < BEGV_BYTE || pos_byte >= ZV_BYTE) | |
1142 | return Qnil; | |
1143 | } | |
fa1d3816 RS |
1144 | else |
1145 | { | |
b7826503 | 1146 | CHECK_NUMBER_COERCE_MARKER (pos); |
b98ef0dc | 1147 | if (XINT (pos) < BEGV || XINT (pos) >= ZV) |
85cac557 | 1148 | return Qnil; |
34a7a267 | 1149 | |
ec1c14f6 | 1150 | pos_byte = CHAR_TO_BYTE (XINT (pos)); |
fa1d3816 | 1151 | } |
35692fe0 | 1152 | |
ec1c14f6 | 1153 | return make_number (FETCH_CHAR (pos_byte)); |
35692fe0 | 1154 | } |
fb8106e8 | 1155 | |
fa1d3816 | 1156 | DEFUN ("char-before", Fchar_before, Schar_before, 0, 1, 0, |
7ee72033 | 1157 | doc: /* Return character in current buffer preceding position POS. |
f555f8cf | 1158 | POS is an integer or a marker and defaults to point. |
7ee72033 | 1159 | If POS is out of range, the value is nil. */) |
5842a27b | 1160 | (Lisp_Object pos) |
fb8106e8 KH |
1161 | { |
1162 | register Lisp_Object val; | |
d311d28c | 1163 | register ptrdiff_t pos_byte; |
fb8106e8 | 1164 | |
fa1d3816 | 1165 | if (NILP (pos)) |
39a4c932 RS |
1166 | { |
1167 | pos_byte = PT_BYTE; | |
3c52e568 | 1168 | XSETFASTINT (pos, PT); |
39a4c932 RS |
1169 | } |
1170 | ||
1171 | if (MARKERP (pos)) | |
85cac557 RS |
1172 | { |
1173 | pos_byte = marker_byte_position (pos); | |
1174 | ||
1175 | if (pos_byte <= BEGV_BYTE || pos_byte > ZV_BYTE) | |
1176 | return Qnil; | |
1177 | } | |
fa1d3816 RS |
1178 | else |
1179 | { | |
b7826503 | 1180 | CHECK_NUMBER_COERCE_MARKER (pos); |
fb8106e8 | 1181 | |
b98ef0dc | 1182 | if (XINT (pos) <= BEGV || XINT (pos) > ZV) |
85cac557 RS |
1183 | return Qnil; |
1184 | ||
ec1c14f6 | 1185 | pos_byte = CHAR_TO_BYTE (XINT (pos)); |
fa1d3816 | 1186 | } |
fb8106e8 | 1187 | |
4b4deea2 | 1188 | if (!NILP (BVAR (current_buffer, enable_multibyte_characters))) |
fb8106e8 | 1189 | { |
ec1c14f6 RS |
1190 | DEC_POS (pos_byte); |
1191 | XSETFASTINT (val, FETCH_CHAR (pos_byte)); | |
fb8106e8 KH |
1192 | } |
1193 | else | |
1194 | { | |
ec1c14f6 RS |
1195 | pos_byte--; |
1196 | XSETFASTINT (val, FETCH_BYTE (pos_byte)); | |
fb8106e8 KH |
1197 | } |
1198 | return val; | |
1199 | } | |
35692fe0 | 1200 | \f |
a7ca3326 | 1201 | DEFUN ("user-login-name", Fuser_login_name, Suser_login_name, 0, 1, 0, |
7ee72033 | 1202 | doc: /* Return the name under which the user logged in, as a string. |
a1f17501 | 1203 | This is based on the effective uid, not the real uid. |
412f1fab | 1204 | Also, if the environment variables LOGNAME or USER are set, |
a1f17501 PJ |
1205 | that determines the value of this function. |
1206 | ||
7b1c38a4 EZ |
1207 | If optional argument UID is an integer or a float, return the login name |
1208 | of the user with that uid, or nil if there is no such user. */) | |
5842a27b | 1209 | (Lisp_Object uid) |
35692fe0 | 1210 | { |
87485d6f | 1211 | struct passwd *pw; |
7b1c38a4 | 1212 | uid_t id; |
87485d6f | 1213 | |
f8a0e364 RS |
1214 | /* Set up the user name info if we didn't do it before. |
1215 | (That can happen if Emacs is dumpable | |
1216 | but you decide to run `temacs -l loadup' and not dump. */ | |
35b34f72 | 1217 | if (INTEGERP (Vuser_login_name)) |
f8a0e364 | 1218 | init_editfns (); |
87485d6f MW |
1219 | |
1220 | if (NILP (uid)) | |
35b34f72 | 1221 | return Vuser_login_name; |
87485d6f | 1222 | |
3f4eabd1 | 1223 | CONS_TO_INTEGER (uid, uid_t, id); |
4d7e6e51 | 1224 | block_input (); |
63c5d10b | 1225 | pw = getpwuid (id); |
4d7e6e51 | 1226 | unblock_input (); |
87485d6f | 1227 | return (pw ? build_string (pw->pw_name) : Qnil); |
35692fe0 JB |
1228 | } |
1229 | ||
1230 | DEFUN ("user-real-login-name", Fuser_real_login_name, Suser_real_login_name, | |
deb8e082 | 1231 | 0, 0, 0, |
7ee72033 | 1232 | doc: /* Return the name of the user's real uid, as a string. |
a1f17501 | 1233 | This ignores the environment variables LOGNAME and USER, so it differs from |
7ee72033 | 1234 | `user-login-name' when running under `su'. */) |
5842a27b | 1235 | (void) |
35692fe0 | 1236 | { |
f8a0e364 RS |
1237 | /* Set up the user name info if we didn't do it before. |
1238 | (That can happen if Emacs is dumpable | |
1239 | but you decide to run `temacs -l loadup' and not dump. */ | |
35b34f72 | 1240 | if (INTEGERP (Vuser_login_name)) |
f8a0e364 | 1241 | init_editfns (); |
35b34f72 | 1242 | return Vuser_real_login_name; |
35692fe0 JB |
1243 | } |
1244 | ||
1245 | DEFUN ("user-uid", Fuser_uid, Suser_uid, 0, 0, 0, | |
7ee72033 | 1246 | doc: /* Return the effective uid of Emacs. |
e00553bf | 1247 | Value is an integer or a float, depending on the value. */) |
5842a27b | 1248 | (void) |
35692fe0 | 1249 | { |
d311d28c | 1250 | uid_t euid = geteuid (); |
3aef3c0a | 1251 | return make_fixnum_or_float (euid); |
35692fe0 JB |
1252 | } |
1253 | ||
1254 | DEFUN ("user-real-uid", Fuser_real_uid, Suser_real_uid, 0, 0, 0, | |
7ee72033 | 1255 | doc: /* Return the real uid of Emacs. |
e00553bf | 1256 | Value is an integer or a float, depending on the value. */) |
5842a27b | 1257 | (void) |
35692fe0 | 1258 | { |
d311d28c | 1259 | uid_t uid = getuid (); |
3aef3c0a | 1260 | return make_fixnum_or_float (uid); |
35692fe0 JB |
1261 | } |
1262 | ||
c9ed721d | 1263 | DEFUN ("user-full-name", Fuser_full_name, Suser_full_name, 0, 1, 0, |
7ee72033 | 1264 | doc: /* Return the full name of the user logged in, as a string. |
a1f17501 PJ |
1265 | If the full name corresponding to Emacs's userid is not known, |
1266 | return "unknown". | |
1267 | ||
1268 | If optional argument UID is an integer or float, return the full name | |
1269 | of the user with that uid, or nil if there is no such user. | |
1270 | If UID is a string, return the full name of the user with that login | |
7ee72033 | 1271 | name, or nil if there is no such user. */) |
5842a27b | 1272 | (Lisp_Object uid) |
35692fe0 | 1273 | { |
c9ed721d | 1274 | struct passwd *pw; |
e7f8264d | 1275 | register char *p, *q; |
3415b0e9 | 1276 | Lisp_Object full; |
c9ed721d RS |
1277 | |
1278 | if (NILP (uid)) | |
34a7a267 | 1279 | return Vuser_full_name; |
3415b0e9 | 1280 | else if (NUMBERP (uid)) |
b91834c3 | 1281 | { |
3f4eabd1 PE |
1282 | uid_t u; |
1283 | CONS_TO_INTEGER (uid, uid_t, u); | |
4d7e6e51 | 1284 | block_input (); |
63c5d10b | 1285 | pw = getpwuid (u); |
4d7e6e51 | 1286 | unblock_input (); |
b91834c3 | 1287 | } |
34a7a267 | 1288 | else if (STRINGP (uid)) |
b91834c3 | 1289 | { |
4d7e6e51 | 1290 | block_input (); |
63c5d10b | 1291 | pw = getpwnam (SSDATA (uid)); |
4d7e6e51 | 1292 | unblock_input (); |
b91834c3 | 1293 | } |
3415b0e9 RS |
1294 | else |
1295 | error ("Invalid UID specification"); | |
c9ed721d | 1296 | |
3415b0e9 | 1297 | if (!pw) |
3347526c | 1298 | return Qnil; |
34a7a267 | 1299 | |
e7f8264d | 1300 | p = USER_FULL_NAME; |
3415b0e9 | 1301 | /* Chop off everything after the first comma. */ |
e7f8264d | 1302 | q = strchr (p, ','); |
3415b0e9 | 1303 | full = make_string (p, q ? q - p : strlen (p)); |
34a7a267 | 1304 | |
3415b0e9 | 1305 | #ifdef AMPERSAND_FULL_NAME |
e7f8264d PE |
1306 | p = SSDATA (full); |
1307 | q = strchr (p, '&'); | |
3415b0e9 RS |
1308 | /* Substitute the login name for the &, upcasing the first character. */ |
1309 | if (q) | |
1310 | { | |
e7f8264d | 1311 | register char *r; |
3415b0e9 RS |
1312 | Lisp_Object login; |
1313 | ||
1314 | login = Fuser_login_name (make_number (pw->pw_uid)); | |
38182d90 | 1315 | r = alloca (strlen (p) + SCHARS (login) + 1); |
72af86bd | 1316 | memcpy (r, p, q - p); |
3415b0e9 | 1317 | r[q - p] = 0; |
42a5b22f | 1318 | strcat (r, SSDATA (login)); |
5da9919f | 1319 | r[q - p] = upcase ((unsigned char) r[q - p]); |
3415b0e9 RS |
1320 | strcat (r, q + 1); |
1321 | full = build_string (r); | |
1322 | } | |
1323 | #endif /* AMPERSAND_FULL_NAME */ | |
1324 | ||
1325 | return full; | |
35692fe0 JB |
1326 | } |
1327 | ||
a7ca3326 | 1328 | DEFUN ("system-name", Fsystem_name, Ssystem_name, 0, 0, 0, |
1a7e0117 | 1329 | doc: /* Return the host name of the machine you are running on, as a string. */) |
5842a27b | 1330 | (void) |
35692fe0 JB |
1331 | { |
1332 | return Vsystem_name; | |
1333 | } | |
1334 | ||
7fd233b3 | 1335 | DEFUN ("emacs-pid", Femacs_pid, Semacs_pid, 0, 0, 0, |
d311d28c | 1336 | doc: /* Return the process ID of Emacs, as a number. */) |
5842a27b | 1337 | (void) |
7fd233b3 | 1338 | { |
d311d28c PE |
1339 | pid_t pid = getpid (); |
1340 | return make_fixnum_or_float (pid); | |
7fd233b3 RS |
1341 | } |
1342 | ||
b8d9bd41 PE |
1343 | \f |
1344 | ||
1345 | #ifndef TIME_T_MIN | |
1346 | # define TIME_T_MIN TYPE_MINIMUM (time_t) | |
1347 | #endif | |
1348 | #ifndef TIME_T_MAX | |
1349 | # define TIME_T_MAX TYPE_MAXIMUM (time_t) | |
1350 | #endif | |
1351 | ||
1352 | /* Report that a time value is out of range for Emacs. */ | |
d35af63c | 1353 | void |
b8d9bd41 PE |
1354 | time_overflow (void) |
1355 | { | |
1356 | error ("Specified time is not representable"); | |
1357 | } | |
1358 | ||
d35af63c | 1359 | /* Return the upper part of the time T (everything but the bottom 16 bits). */ |
b8d9bd41 PE |
1360 | static EMACS_INT |
1361 | hi_time (time_t t) | |
1362 | { | |
1363 | time_t hi = t >> 16; | |
313c1e54 PE |
1364 | |
1365 | /* Check for overflow, helping the compiler for common cases where | |
1366 | no runtime check is needed, and taking care not to convert | |
1367 | negative numbers to unsigned before comparing them. */ | |
1368 | if (! ((! TYPE_SIGNED (time_t) | |
1369 | || MOST_NEGATIVE_FIXNUM <= TIME_T_MIN >> 16 | |
1370 | || MOST_NEGATIVE_FIXNUM <= hi) | |
1371 | && (TIME_T_MAX >> 16 <= MOST_POSITIVE_FIXNUM | |
1372 | || hi <= MOST_POSITIVE_FIXNUM))) | |
b8d9bd41 | 1373 | time_overflow (); |
313c1e54 | 1374 | |
b8d9bd41 PE |
1375 | return hi; |
1376 | } | |
1377 | ||
1378 | /* Return the bottom 16 bits of the time T. */ | |
d311d28c | 1379 | static int |
b8d9bd41 PE |
1380 | lo_time (time_t t) |
1381 | { | |
1382 | return t & ((1 << 16) - 1); | |
1383 | } | |
1384 | ||
a7ca3326 | 1385 | DEFUN ("current-time", Fcurrent_time, Scurrent_time, 0, 0, 0, |
7ee72033 | 1386 | doc: /* Return the current time, as the number of seconds since 1970-01-01 00:00:00. |
d35af63c PE |
1387 | The time is returned as a list of integers (HIGH LOW USEC PSEC). |
1388 | HIGH has the most significant bits of the seconds, while LOW has the | |
1389 | least significant 16 bits. USEC and PSEC are the microsecond and | |
1390 | picosecond counts. */) | |
5842a27b | 1391 | (void) |
d940e0e4 | 1392 | { |
e9a9ae03 | 1393 | return make_lisp_time (current_emacs_time ()); |
d940e0e4 | 1394 | } |
4211ee7d | 1395 | |
a7ca3326 | 1396 | DEFUN ("get-internal-run-time", Fget_internal_run_time, Sget_internal_run_time, |
4211ee7d EZ |
1397 | 0, 0, 0, |
1398 | doc: /* Return the current run time used by Emacs. | |
d35af63c PE |
1399 | The time is returned as a list (HIGH LOW USEC PSEC), using the same |
1400 | style as (current-time). | |
4211ee7d | 1401 | |
9671c13a | 1402 | On systems that can't determine the run time, `get-internal-run-time' |
d35af63c | 1403 | does the same thing as `current-time'. */) |
5842a27b | 1404 | (void) |
4211ee7d EZ |
1405 | { |
1406 | #ifdef HAVE_GETRUSAGE | |
1407 | struct rusage usage; | |
b8d9bd41 PE |
1408 | time_t secs; |
1409 | int usecs; | |
4211ee7d EZ |
1410 | |
1411 | if (getrusage (RUSAGE_SELF, &usage) < 0) | |
1412 | /* This shouldn't happen. What action is appropriate? */ | |
8a0ff744 | 1413 | xsignal0 (Qerror); |
4211ee7d EZ |
1414 | |
1415 | /* Sum up user time and system time. */ | |
1416 | secs = usage.ru_utime.tv_sec + usage.ru_stime.tv_sec; | |
1417 | usecs = usage.ru_utime.tv_usec + usage.ru_stime.tv_usec; | |
1418 | if (usecs >= 1000000) | |
1419 | { | |
1420 | usecs -= 1000000; | |
1421 | secs++; | |
1422 | } | |
e9a9ae03 | 1423 | return make_lisp_time (make_emacs_time (secs, usecs * 1000)); |
c433c134 | 1424 | #else /* ! HAVE_GETRUSAGE */ |
43db14bb | 1425 | #ifdef WINDOWSNT |
c433c134 JR |
1426 | return w32_get_internal_run_time (); |
1427 | #else /* ! WINDOWSNT */ | |
4211ee7d | 1428 | return Fcurrent_time (); |
c433c134 JR |
1429 | #endif /* WINDOWSNT */ |
1430 | #endif /* HAVE_GETRUSAGE */ | |
4211ee7d | 1431 | } |
d940e0e4 JB |
1432 | \f |
1433 | ||
d35af63c PE |
1434 | /* Make a Lisp list that represents the time T with fraction TAIL. */ |
1435 | static Lisp_Object | |
1436 | make_time_tail (time_t t, Lisp_Object tail) | |
1437 | { | |
1438 | return Fcons (make_number (hi_time (t)), | |
1439 | Fcons (make_number (lo_time (t)), tail)); | |
1440 | } | |
1441 | ||
1442 | /* Make a Lisp list that represents the system time T. */ | |
1443 | static Lisp_Object | |
8be6f318 PE |
1444 | make_time (time_t t) |
1445 | { | |
d35af63c PE |
1446 | return make_time_tail (t, Qnil); |
1447 | } | |
1448 | ||
1449 | /* Make a Lisp list that represents the Emacs time T. T may be an | |
1450 | invalid time, with a slightly negative tv_nsec value such as | |
1451 | UNKNOWN_MODTIME_NSECS; in that case, the Lisp list contains a | |
1452 | correspondingly negative picosecond count. */ | |
1453 | Lisp_Object | |
1454 | make_lisp_time (EMACS_TIME t) | |
1455 | { | |
1456 | int ns = EMACS_NSECS (t); | |
1457 | return make_time_tail (EMACS_SECS (t), | |
1458 | list2 (make_number (ns / 1000), | |
1459 | make_number (ns % 1000 * 1000))); | |
8be6f318 PE |
1460 | } |
1461 | ||
1462 | /* Decode a Lisp list SPECIFIED_TIME that represents a time. | |
d35af63c | 1463 | Set *PHIGH, *PLOW, *PUSEC, *PPSEC to its parts; do not check their values. |
a08d4ba7 PE |
1464 | Return true if successful. */ |
1465 | static bool | |
d35af63c PE |
1466 | disassemble_lisp_time (Lisp_Object specified_time, Lisp_Object *phigh, |
1467 | Lisp_Object *plow, Lisp_Object *pusec, | |
1468 | Lisp_Object *ppsec) | |
1469 | { | |
1470 | if (CONSP (specified_time)) | |
1471 | { | |
1472 | Lisp_Object low = XCDR (specified_time); | |
1473 | Lisp_Object usec = make_number (0); | |
1474 | Lisp_Object psec = make_number (0); | |
1475 | if (CONSP (low)) | |
1476 | { | |
1477 | Lisp_Object low_tail = XCDR (low); | |
1478 | low = XCAR (low); | |
1479 | if (CONSP (low_tail)) | |
1480 | { | |
1481 | usec = XCAR (low_tail); | |
1482 | low_tail = XCDR (low_tail); | |
1483 | if (CONSP (low_tail)) | |
1484 | psec = XCAR (low_tail); | |
1485 | } | |
1486 | else if (!NILP (low_tail)) | |
1487 | usec = low_tail; | |
1488 | } | |
1489 | ||
1490 | *phigh = XCAR (specified_time); | |
1491 | *plow = low; | |
1492 | *pusec = usec; | |
1493 | *ppsec = psec; | |
1494 | return 1; | |
1495 | } | |
1496 | ||
1497 | return 0; | |
1498 | } | |
1499 | ||
1500 | /* From the time components HIGH, LOW, USEC and PSEC taken from a Lisp | |
31571fd7 PE |
1501 | list, generate the corresponding time value. |
1502 | ||
1503 | If RESULT is not null, store into *RESULT the converted time; | |
1504 | this can fail if the converted time does not fit into EMACS_TIME. | |
1505 | If *DRESULT is not null, store into *DRESULT the number of | |
1506 | seconds since the start of the POSIX Epoch. | |
1507 | ||
a08d4ba7 PE |
1508 | Return true if successful. */ |
1509 | bool | |
d35af63c | 1510 | decode_time_components (Lisp_Object high, Lisp_Object low, Lisp_Object usec, |
31571fd7 PE |
1511 | Lisp_Object psec, |
1512 | EMACS_TIME *result, double *dresult) | |
e3120ab5 | 1513 | { |
d35af63c | 1514 | EMACS_INT hi, lo, us, ps; |
d35af63c PE |
1515 | if (! (INTEGERP (high) && INTEGERP (low) |
1516 | && INTEGERP (usec) && INTEGERP (psec))) | |
1517 | return 0; | |
1518 | hi = XINT (high); | |
1519 | lo = XINT (low); | |
1520 | us = XINT (usec); | |
1521 | ps = XINT (psec); | |
1522 | ||
1523 | /* Normalize out-of-range lower-order components by carrying | |
1524 | each overflow into the next higher-order component. */ | |
1525 | us += ps / 1000000 - (ps % 1000000 < 0); | |
1526 | lo += us / 1000000 - (us % 1000000 < 0); | |
1527 | hi += lo >> 16; | |
1528 | ps = ps % 1000000 + 1000000 * (ps % 1000000 < 0); | |
1529 | us = us % 1000000 + 1000000 * (us % 1000000 < 0); | |
1530 | lo &= (1 << 16) - 1; | |
1531 | ||
31571fd7 PE |
1532 | if (result) |
1533 | { | |
1534 | if ((TYPE_SIGNED (time_t) ? TIME_T_MIN >> 16 <= hi : 0 <= hi) | |
1535 | && hi <= TIME_T_MAX >> 16) | |
1536 | { | |
1537 | /* Return the greatest representable time that is not greater | |
1538 | than the requested time. */ | |
1539 | time_t sec = hi; | |
e9a9ae03 | 1540 | *result = make_emacs_time ((sec << 16) + lo, us * 1000 + ps / 1000); |
31571fd7 PE |
1541 | } |
1542 | else | |
1543 | { | |
1544 | /* Overflow in the highest-order component. */ | |
1545 | return 0; | |
1546 | } | |
1547 | } | |
1548 | ||
1549 | if (dresult) | |
1550 | *dresult = (us * 1e6 + ps) / 1e12 + lo + hi * 65536.0; | |
d35af63c | 1551 | |
d35af63c PE |
1552 | return 1; |
1553 | } | |
1554 | ||
1555 | /* Decode a Lisp list SPECIFIED_TIME that represents a time. | |
1556 | If SPECIFIED_TIME is nil, use the current time. | |
31571fd7 PE |
1557 | |
1558 | Round the time down to the nearest EMACS_TIME value. | |
d35af63c PE |
1559 | Return seconds since the Epoch. |
1560 | Signal an error if unsuccessful. */ | |
1561 | EMACS_TIME | |
31571fd7 | 1562 | lisp_time_argument (Lisp_Object specified_time) |
d35af63c PE |
1563 | { |
1564 | EMACS_TIME t; | |
e3120ab5 | 1565 | if (NILP (specified_time)) |
e9a9ae03 | 1566 | t = current_emacs_time (); |
d35af63c | 1567 | else |
34a7a267 | 1568 | { |
d35af63c PE |
1569 | Lisp_Object high, low, usec, psec; |
1570 | if (! (disassemble_lisp_time (specified_time, &high, &low, &usec, &psec) | |
31571fd7 | 1571 | && decode_time_components (high, low, usec, psec, &t, 0))) |
d35af63c | 1572 | error ("Invalid time specification"); |
34a7a267 | 1573 | } |
d35af63c PE |
1574 | return t; |
1575 | } | |
1576 | ||
1577 | /* Like lisp_time_argument, except decode only the seconds part, | |
31571fd7 PE |
1578 | do not allow out-of-range time stamps, do not check the subseconds part, |
1579 | and always round down. */ | |
d35af63c PE |
1580 | static time_t |
1581 | lisp_seconds_argument (Lisp_Object specified_time) | |
1582 | { | |
1583 | if (NILP (specified_time)) | |
1584 | return time (NULL); | |
e3120ab5 JB |
1585 | else |
1586 | { | |
d35af63c PE |
1587 | Lisp_Object high, low, usec, psec; |
1588 | EMACS_TIME t; | |
1589 | if (! (disassemble_lisp_time (specified_time, &high, &low, &usec, &psec) | |
1590 | && decode_time_components (high, low, make_number (0), | |
1591 | make_number (0), &t, 0))) | |
1592 | error ("Invalid time specification"); | |
1593 | return EMACS_SECS (t); | |
e3120ab5 JB |
1594 | } |
1595 | } | |
1596 | ||
34a7a267 | 1597 | DEFUN ("float-time", Ffloat_time, Sfloat_time, 0, 1, 0, |
7ee72033 | 1598 | doc: /* Return the current time, as a float number of seconds since the epoch. |
412f1fab | 1599 | If SPECIFIED-TIME is given, it is the time to convert to float |
5668fbb8 | 1600 | instead of the current time. The argument should have the form |
d35af63c PE |
1601 | (HIGH LOW) or (HIGH LOW USEC) or (HIGH LOW USEC PSEC). Thus, |
1602 | you can use times from `current-time' and from `file-attributes'. | |
1603 | SPECIFIED-TIME can also have the form (HIGH . LOW), but this is | |
1604 | considered obsolete. | |
a1f17501 PJ |
1605 | |
1606 | WARNING: Since the result is floating point, it may not be exact. | |
d427a9fa EZ |
1607 | If precise time stamps are required, use either `current-time', |
1608 | or (if you need time as a string) `format-time-string'. */) | |
5842a27b | 1609 | (Lisp_Object specified_time) |
34a7a267 | 1610 | { |
31571fd7 PE |
1611 | double t; |
1612 | if (NILP (specified_time)) | |
1613 | { | |
e9a9ae03 | 1614 | EMACS_TIME now = current_emacs_time (); |
31571fd7 PE |
1615 | t = EMACS_SECS (now) + EMACS_NSECS (now) / 1e9; |
1616 | } | |
1617 | else | |
1618 | { | |
1619 | Lisp_Object high, low, usec, psec; | |
1620 | if (! (disassemble_lisp_time (specified_time, &high, &low, &usec, &psec) | |
1621 | && decode_time_components (high, low, usec, psec, 0, &t))) | |
1622 | error ("Invalid time specification"); | |
1623 | } | |
1624 | return make_float (t); | |
34a7a267 SS |
1625 | } |
1626 | ||
70ebbe5f PE |
1627 | /* Write information into buffer S of size MAXSIZE, according to the |
1628 | FORMAT of length FORMAT_LEN, using time information taken from *TP. | |
a08d4ba7 | 1629 | Default to Universal Time if UT, local time otherwise. |
a4180391 | 1630 | Use NS as the number of nanoseconds in the %N directive. |
70ebbe5f PE |
1631 | Return the number of bytes written, not including the terminating |
1632 | '\0'. If S is NULL, nothing will be written anywhere; so to | |
1633 | determine how many bytes would be written, use NULL for S and | |
1634 | ((size_t) -1) for MAXSIZE. | |
1635 | ||
16c3e636 PE |
1636 | This function behaves like nstrftime, except it allows null |
1637 | bytes in FORMAT and it does not support nanoseconds. */ | |
70ebbe5f | 1638 | static size_t |
a4180391 | 1639 | emacs_nmemftime (char *s, size_t maxsize, const char *format, |
a08d4ba7 | 1640 | size_t format_len, const struct tm *tp, bool ut, int ns) |
70ebbe5f PE |
1641 | { |
1642 | size_t total = 0; | |
1643 | ||
be09e6e6 PE |
1644 | /* Loop through all the null-terminated strings in the format |
1645 | argument. Normally there's just one null-terminated string, but | |
1646 | there can be arbitrarily many, concatenated together, if the | |
16c3e636 | 1647 | format contains '\0' bytes. nstrftime stops at the first |
be09e6e6 | 1648 | '\0' byte so we must invoke it separately for each such string. */ |
70ebbe5f PE |
1649 | for (;;) |
1650 | { | |
1651 | size_t len; | |
1652 | size_t result; | |
1653 | ||
1654 | if (s) | |
1655 | s[0] = '\1'; | |
1656 | ||
a4180391 | 1657 | result = nstrftime (s, maxsize, format, tp, ut, ns); |
70ebbe5f PE |
1658 | |
1659 | if (s) | |
1660 | { | |
1661 | if (result == 0 && s[0] != '\0') | |
1662 | return 0; | |
1663 | s += result + 1; | |
1664 | } | |
1665 | ||
1666 | maxsize -= result + 1; | |
1667 | total += result; | |
1668 | len = strlen (format); | |
1669 | if (len == format_len) | |
1670 | return total; | |
1671 | total++; | |
1672 | format += len + 1; | |
1673 | format_len -= len + 1; | |
1674 | } | |
1675 | } | |
1676 | ||
3efcc98a | 1677 | DEFUN ("format-time-string", Fformat_time_string, Sformat_time_string, 1, 3, 0, |
7ee72033 | 1678 | doc: /* Use FORMAT-STRING to format the time TIME, or now if omitted. |
d35af63c | 1679 | TIME is specified as (HIGH LOW USEC PSEC), as returned by |
5668fbb8 LT |
1680 | `current-time' or `file-attributes'. The obsolete form (HIGH . LOW) |
1681 | is also still accepted. | |
a1f17501 PJ |
1682 | The third, optional, argument UNIVERSAL, if non-nil, means describe TIME |
1683 | as Universal Time; nil means describe TIME in the local time zone. | |
1684 | The value is a copy of FORMAT-STRING, but with certain constructs replaced | |
1685 | by text that describes the specified date and time in TIME: | |
1686 | ||
1687 | %Y is the year, %y within the century, %C the century. | |
1688 | %G is the year corresponding to the ISO week, %g within the century. | |
1689 | %m is the numeric month. | |
1690 | %b and %h are the locale's abbreviated month name, %B the full name. | |
1691 | %d is the day of the month, zero-padded, %e is blank-padded. | |
1692 | %u is the numeric day of week from 1 (Monday) to 7, %w from 0 (Sunday) to 6. | |
1693 | %a is the locale's abbreviated name of the day of week, %A the full name. | |
1694 | %U is the week number starting on Sunday, %W starting on Monday, | |
1695 | %V according to ISO 8601. | |
1696 | %j is the day of the year. | |
1697 | ||
1698 | %H is the hour on a 24-hour clock, %I is on a 12-hour clock, %k is like %H | |
1699 | only blank-padded, %l is like %I blank-padded. | |
1700 | %p is the locale's equivalent of either AM or PM. | |
1701 | %M is the minute. | |
1702 | %S is the second. | |
a4180391 | 1703 | %N is the nanosecond, %6N the microsecond, %3N the millisecond, etc. |
a1f17501 PJ |
1704 | %Z is the time zone name, %z is the numeric form. |
1705 | %s is the number of seconds since 1970-01-01 00:00:00 +0000. | |
1706 | ||
1707 | %c is the locale's date and time format. | |
1708 | %x is the locale's "preferred" date format. | |
1709 | %D is like "%m/%d/%y". | |
1710 | ||
1711 | %R is like "%H:%M", %T is like "%H:%M:%S", %r is like "%I:%M:%S %p". | |
1712 | %X is the locale's "preferred" time format. | |
1713 | ||
1714 | Finally, %n is a newline, %t is a tab, %% is a literal %. | |
1715 | ||
1716 | Certain flags and modifiers are available with some format controls. | |
1717 | The flags are `_', `-', `^' and `#'. For certain characters X, | |
1718 | %_X is like %X, but padded with blanks; %-X is like %X, | |
a67a233b MR |
1719 | but without padding. %^X is like %X, but with all textual |
1720 | characters up-cased; %#X is like %X, but with letter-case of | |
a1f17501 PJ |
1721 | all textual characters reversed. |
1722 | %NX (where N stands for an integer) is like %X, | |
1723 | but takes up at least N (a number) positions. | |
1724 | The modifiers are `E' and `O'. For certain characters X, | |
1725 | %EX is a locale's alternative version of %X; | |
1726 | %OX is like %X, but uses the locale's number symbols. | |
1727 | ||
75bfc667 JL |
1728 | For example, to produce full ISO 8601 format, use "%Y-%m-%dT%T%z". |
1729 | ||
1730 | usage: (format-time-string FORMAT-STRING &optional TIME UNIVERSAL) */) | |
545b49b4 | 1731 | (Lisp_Object format_string, Lisp_Object timeval, Lisp_Object universal) |
a82d387c | 1732 | { |
31571fd7 | 1733 | EMACS_TIME t = lisp_time_argument (timeval); |
7ed806a7 | 1734 | struct tm tm; |
7da0b018 PE |
1735 | |
1736 | CHECK_STRING (format_string); | |
1737 | format_string = code_convert_string_norecord (format_string, | |
1738 | Vlocale_coding_system, 1); | |
1739 | return format_time_string (SSDATA (format_string), SBYTES (format_string), | |
d35af63c | 1740 | t, ! NILP (universal), &tm); |
7da0b018 PE |
1741 | } |
1742 | ||
1743 | static Lisp_Object | |
1744 | format_time_string (char const *format, ptrdiff_t formatlen, | |
a08d4ba7 | 1745 | EMACS_TIME t, bool ut, struct tm *tmp) |
7da0b018 | 1746 | { |
7ed806a7 PE |
1747 | char buffer[4000]; |
1748 | char *buf = buffer; | |
243e0530 | 1749 | ptrdiff_t size = sizeof buffer; |
7ed806a7 PE |
1750 | size_t len; |
1751 | Lisp_Object bufstring; | |
d35af63c | 1752 | int ns = EMACS_NSECS (t); |
177ea5f1 | 1753 | struct tm *tm; |
7ed806a7 | 1754 | USE_SAFE_ALLOCA; |
a82d387c | 1755 | |
a82d387c RS |
1756 | while (1) |
1757 | { | |
e9a9ae03 | 1758 | time_t *taddr = emacs_secs_addr (&t); |
4d7e6e51 | 1759 | block_input (); |
7ed806a7 PE |
1760 | |
1761 | synchronize_system_time_locale (); | |
1762 | ||
e9a9ae03 | 1763 | tm = ut ? gmtime (taddr) : localtime (taddr); |
7ed806a7 PE |
1764 | if (! tm) |
1765 | { | |
4d7e6e51 | 1766 | unblock_input (); |
7ed806a7 PE |
1767 | time_overflow (); |
1768 | } | |
1769 | *tmp = *tm; | |
b48382a0 | 1770 | |
bfbcc5ee | 1771 | buf[0] = '\1'; |
7ed806a7 PE |
1772 | len = emacs_nmemftime (buf, size, format, formatlen, tm, ut, ns); |
1773 | if ((0 < len && len < size) || (len == 0 && buf[0] == '\0')) | |
1774 | break; | |
b48382a0 | 1775 | |
7ed806a7 PE |
1776 | /* Buffer was too small, so make it bigger and try again. */ |
1777 | len = emacs_nmemftime (NULL, SIZE_MAX, format, formatlen, tm, ut, ns); | |
4d7e6e51 | 1778 | unblock_input (); |
7ed806a7 | 1779 | if (STRING_BYTES_BOUND <= len) |
da64016e | 1780 | string_overflow (); |
7ed806a7 | 1781 | size = len + 1; |
98c6f1e3 | 1782 | buf = SAFE_ALLOCA (size); |
a82d387c | 1783 | } |
7ed806a7 | 1784 | |
4d7e6e51 | 1785 | unblock_input (); |
7ed806a7 PE |
1786 | bufstring = make_unibyte_string (buf, len); |
1787 | SAFE_FREE (); | |
1788 | return code_convert_string_norecord (bufstring, Vlocale_coding_system, 0); | |
a82d387c RS |
1789 | } |
1790 | ||
4691c06d | 1791 | DEFUN ("decode-time", Fdecode_time, Sdecode_time, 0, 1, 0, |
7ee72033 | 1792 | doc: /* Decode a time value as (SEC MINUTE HOUR DAY MONTH YEAR DOW DST ZONE). |
5668fbb8 | 1793 | The optional SPECIFIED-TIME should be a list of (HIGH LOW . IGNORED), |
9671c13a | 1794 | as from `current-time' and `file-attributes', or nil to use the |
5668fbb8 LT |
1795 | current time. The obsolete form (HIGH . LOW) is also still accepted. |
1796 | The list has the following nine members: SEC is an integer between 0 | |
1797 | and 60; SEC is 60 for a leap second, which only some operating systems | |
1798 | support. MINUTE is an integer between 0 and 59. HOUR is an integer | |
1799 | between 0 and 23. DAY is an integer between 1 and 31. MONTH is an | |
1800 | integer between 1 and 12. YEAR is an integer indicating the | |
1801 | four-digit year. DOW is the day of week, an integer between 0 and 6, | |
f1767e2b | 1802 | where 0 is Sunday. DST is t if daylight saving time is in effect, |
5668fbb8 LT |
1803 | otherwise nil. ZONE is an integer indicating the number of seconds |
1804 | east of Greenwich. (Note that Common Lisp has different meanings for | |
1805 | DOW and ZONE.) */) | |
5842a27b | 1806 | (Lisp_Object specified_time) |
4691c06d | 1807 | { |
d35af63c | 1808 | time_t time_spec = lisp_seconds_argument (specified_time); |
3c887943 | 1809 | struct tm save_tm; |
4691c06d RS |
1810 | struct tm *decoded_time; |
1811 | Lisp_Object list_args[9]; | |
34a7a267 | 1812 | |
4d7e6e51 | 1813 | block_input (); |
4691c06d | 1814 | decoded_time = localtime (&time_spec); |
7ed806a7 PE |
1815 | if (decoded_time) |
1816 | save_tm = *decoded_time; | |
4d7e6e51 | 1817 | unblock_input (); |
b8d9bd41 | 1818 | if (! (decoded_time |
7ed806a7 PE |
1819 | && MOST_NEGATIVE_FIXNUM - TM_YEAR_BASE <= save_tm.tm_year |
1820 | && save_tm.tm_year <= MOST_POSITIVE_FIXNUM - TM_YEAR_BASE)) | |
fe31d94c | 1821 | time_overflow (); |
7ed806a7 PE |
1822 | XSETFASTINT (list_args[0], save_tm.tm_sec); |
1823 | XSETFASTINT (list_args[1], save_tm.tm_min); | |
1824 | XSETFASTINT (list_args[2], save_tm.tm_hour); | |
1825 | XSETFASTINT (list_args[3], save_tm.tm_mday); | |
1826 | XSETFASTINT (list_args[4], save_tm.tm_mon + 1); | |
71c3f28f EZ |
1827 | /* On 64-bit machines an int is narrower than EMACS_INT, thus the |
1828 | cast below avoids overflow in int arithmetics. */ | |
7ed806a7 PE |
1829 | XSETINT (list_args[5], TM_YEAR_BASE + (EMACS_INT) save_tm.tm_year); |
1830 | XSETFASTINT (list_args[6], save_tm.tm_wday); | |
1831 | list_args[7] = save_tm.tm_isdst ? Qt : Qnil; | |
3c887943 | 1832 | |
4d7e6e51 | 1833 | block_input (); |
3c887943 KH |
1834 | decoded_time = gmtime (&time_spec); |
1835 | if (decoded_time == 0) | |
1836 | list_args[8] = Qnil; | |
1837 | else | |
94751666 | 1838 | XSETINT (list_args[8], tm_diff (&save_tm, decoded_time)); |
4d7e6e51 | 1839 | unblock_input (); |
4691c06d RS |
1840 | return Flist (9, list_args); |
1841 | } | |
1842 | ||
b8d9bd41 PE |
1843 | /* Return OBJ - OFFSET, checking that OBJ is a valid fixnum and that |
1844 | the result is representable as an int. Assume OFFSET is small and | |
1845 | nonnegative. */ | |
1846 | static int | |
1847 | check_tm_member (Lisp_Object obj, int offset) | |
1848 | { | |
1849 | EMACS_INT n; | |
1850 | CHECK_NUMBER (obj); | |
1851 | n = XINT (obj); | |
1852 | if (! (INT_MIN + offset <= n && n - offset <= INT_MAX)) | |
1853 | time_overflow (); | |
1854 | return n - offset; | |
1855 | } | |
1856 | ||
6ee9061c | 1857 | DEFUN ("encode-time", Fencode_time, Sencode_time, 6, MANY, 0, |
7ee72033 | 1858 | doc: /* Convert SECOND, MINUTE, HOUR, DAY, MONTH, YEAR and ZONE to internal time. |
a1f17501 PJ |
1859 | This is the reverse operation of `decode-time', which see. |
1860 | ZONE defaults to the current time zone rule. This can | |
1861 | be a string or t (as from `set-time-zone-rule'), or it can be a list | |
b57c2708 | 1862 | \(as from `current-time-zone') or an integer (as from `decode-time') |
9c279ddf | 1863 | applied without consideration for daylight saving time. |
a1f17501 PJ |
1864 | |
1865 | You can pass more than 7 arguments; then the first six arguments | |
1866 | are used as SECOND through YEAR, and the *last* argument is used as ZONE. | |
1867 | The intervening arguments are ignored. | |
1868 | This feature lets (apply 'encode-time (decode-time ...)) work. | |
1869 | ||
412f1fab | 1870 | Out-of-range values for SECOND, MINUTE, HOUR, DAY, or MONTH are allowed; |
a1f17501 PJ |
1871 | for example, a DAY of 0 means the day preceding the given month. |
1872 | Year numbers less than 100 are treated just like other year numbers. | |
4bfbe194 MB |
1873 | If you want them to stand for years in this century, you must do that yourself. |
1874 | ||
f555f8cf KH |
1875 | Years before 1970 are not guaranteed to work. On some systems, |
1876 | year values as low as 1901 do work. | |
1877 | ||
4bfbe194 | 1878 | usage: (encode-time SECOND MINUTE HOUR DAY MONTH YEAR &optional ZONE) */) |
f66c7cf8 | 1879 | (ptrdiff_t nargs, Lisp_Object *args) |
cce7b8a0 | 1880 | { |
545b49b4 | 1881 | time_t value; |
c59b5089 | 1882 | struct tm tm; |
60653898 | 1883 | Lisp_Object zone = (nargs > 6 ? args[nargs - 1] : Qnil); |
6ee9061c | 1884 | |
b8d9bd41 PE |
1885 | tm.tm_sec = check_tm_member (args[0], 0); |
1886 | tm.tm_min = check_tm_member (args[1], 0); | |
1887 | tm.tm_hour = check_tm_member (args[2], 0); | |
1888 | tm.tm_mday = check_tm_member (args[3], 0); | |
1889 | tm.tm_mon = check_tm_member (args[4], 1); | |
1890 | tm.tm_year = check_tm_member (args[5], TM_YEAR_BASE); | |
c59b5089 PE |
1891 | tm.tm_isdst = -1; |
1892 | ||
1893 | if (CONSP (zone)) | |
7d7bbefd | 1894 | zone = XCAR (zone); |
1b8fa736 | 1895 | if (NILP (zone)) |
bcda42c8 | 1896 | { |
4d7e6e51 | 1897 | block_input (); |
545b49b4 | 1898 | value = mktime (&tm); |
4d7e6e51 | 1899 | unblock_input (); |
bcda42c8 | 1900 | } |
c59b5089 | 1901 | else |
1b8fa736 | 1902 | { |
c59b5089 | 1903 | char tzbuf[100]; |
8ea90aa3 | 1904 | const char *tzstring; |
c59b5089 | 1905 | char **oldenv = environ, **newenv; |
34a7a267 | 1906 | |
2e34157c | 1907 | if (EQ (zone, Qt)) |
085e9fcb EN |
1908 | tzstring = "UTC0"; |
1909 | else if (STRINGP (zone)) | |
51b59d79 | 1910 | tzstring = SSDATA (zone); |
c59b5089 | 1911 | else if (INTEGERP (zone)) |
1b8fa736 | 1912 | { |
d311d28c PE |
1913 | EMACS_INT abszone = eabs (XINT (zone)); |
1914 | EMACS_INT zone_hr = abszone / (60*60); | |
1915 | int zone_min = (abszone/60) % 60; | |
1916 | int zone_sec = abszone % 60; | |
1917 | sprintf (tzbuf, "XXX%s%"pI"d:%02d:%02d", "-" + (XINT (zone) < 0), | |
1918 | zone_hr, zone_min, zone_sec); | |
c59b5089 | 1919 | tzstring = tzbuf; |
1b8fa736 | 1920 | } |
c59b5089 PE |
1921 | else |
1922 | error ("Invalid time zone specification"); | |
1923 | ||
4d7e6e51 | 1924 | block_input (); |
7ed806a7 | 1925 | |
34a7a267 | 1926 | /* Set TZ before calling mktime; merely adjusting mktime's returned |
c59b5089 PE |
1927 | value doesn't suffice, since that would mishandle leap seconds. */ |
1928 | set_time_zone_rule (tzstring); | |
1929 | ||
545b49b4 | 1930 | value = mktime (&tm); |
c59b5089 PE |
1931 | |
1932 | /* Restore TZ to previous value. */ | |
1933 | newenv = environ; | |
1934 | environ = oldenv; | |
c59b5089 PE |
1935 | #ifdef LOCALTIME_CACHE |
1936 | tzset (); | |
1937 | #endif | |
4d7e6e51 | 1938 | unblock_input (); |
7ed806a7 PE |
1939 | |
1940 | xfree (newenv); | |
1b8fa736 | 1941 | } |
1b8fa736 | 1942 | |
545b49b4 | 1943 | if (value == (time_t) -1) |
fe31d94c | 1944 | time_overflow (); |
c59b5089 | 1945 | |
545b49b4 | 1946 | return make_time (value); |
cce7b8a0 RS |
1947 | } |
1948 | ||
2148f2b4 | 1949 | DEFUN ("current-time-string", Fcurrent_time_string, Scurrent_time_string, 0, 1, 0, |
244b023e | 1950 | doc: /* Return the current local time, as a human-readable string. |
a1f17501 | 1951 | Programs can use this function to decode a time, |
d65b4235 PE |
1952 | since the number of columns in each field is fixed |
1953 | if the year is in the range 1000-9999. | |
a1f17501 PJ |
1954 | The format is `Sun Sep 16 01:03:52 1973'. |
1955 | However, see also the functions `decode-time' and `format-time-string' | |
1956 | which provide a much more powerful and general facility. | |
1957 | ||
5668fbb8 LT |
1958 | If SPECIFIED-TIME is given, it is a time to format instead of the |
1959 | current time. The argument should have the form (HIGH LOW . IGNORED). | |
1960 | Thus, you can use times obtained from `current-time' and from | |
1961 | `file-attributes'. SPECIFIED-TIME can also have the form (HIGH . LOW), | |
1962 | but this is considered obsolete. */) | |
5842a27b | 1963 | (Lisp_Object specified_time) |
2148f2b4 | 1964 | { |
d35af63c | 1965 | time_t value = lisp_seconds_argument (specified_time); |
aac18aa4 | 1966 | struct tm *tm; |
ab0fa4e4 PE |
1967 | char buf[sizeof "Mon Apr 30 12:49:17 " + INT_STRLEN_BOUND (int) + 1]; |
1968 | int len IF_LINT (= 0); | |
2148f2b4 | 1969 | |
ab0fa4e4 PE |
1970 | /* Convert to a string in ctime format, except without the trailing |
1971 | newline, and without the 4-digit year limit. Don't use asctime | |
1972 | or ctime, as they might dump core if the year is outside the | |
1973 | range -999 .. 9999. */ | |
4d7e6e51 | 1974 | block_input (); |
aac18aa4 | 1975 | tm = localtime (&value); |
ab0fa4e4 | 1976 | if (tm) |
7ed806a7 | 1977 | { |
ab0fa4e4 PE |
1978 | static char const wday_name[][4] = |
1979 | { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" }; | |
1980 | static char const mon_name[][4] = | |
1981 | { "Jan", "Feb", "Mar", "Apr", "May", "Jun", | |
1982 | "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" }; | |
1983 | printmax_t year_base = TM_YEAR_BASE; | |
1984 | ||
1985 | len = sprintf (buf, "%s %s%3d %02d:%02d:%02d %"pMd, | |
1986 | wday_name[tm->tm_wday], mon_name[tm->tm_mon], tm->tm_mday, | |
1987 | tm->tm_hour, tm->tm_min, tm->tm_sec, | |
1988 | tm->tm_year + year_base); | |
7ed806a7 | 1989 | } |
4d7e6e51 | 1990 | unblock_input (); |
ab0fa4e4 | 1991 | if (! tm) |
fe31d94c | 1992 | time_overflow (); |
35692fe0 | 1993 | |
ab0fa4e4 | 1994 | return make_unibyte_string (buf, len); |
35692fe0 | 1995 | } |
c2662aea | 1996 | |
94751666 PE |
1997 | /* Yield A - B, measured in seconds. |
1998 | This function is copied from the GNU C Library. */ | |
1999 | static int | |
971de7fb | 2000 | tm_diff (struct tm *a, struct tm *b) |
e3120ab5 | 2001 | { |
94751666 PE |
2002 | /* Compute intervening leap days correctly even if year is negative. |
2003 | Take care to avoid int overflow in leap day calculations, | |
2004 | but it's OK to assume that A and B are close to each other. */ | |
2005 | int a4 = (a->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (a->tm_year & 3); | |
2006 | int b4 = (b->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (b->tm_year & 3); | |
2007 | int a100 = a4 / 25 - (a4 % 25 < 0); | |
2008 | int b100 = b4 / 25 - (b4 % 25 < 0); | |
2009 | int a400 = a100 >> 2; | |
2010 | int b400 = b100 >> 2; | |
2011 | int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400); | |
2012 | int years = a->tm_year - b->tm_year; | |
2013 | int days = (365 * years + intervening_leap_days | |
2014 | + (a->tm_yday - b->tm_yday)); | |
2015 | return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour)) | |
2016 | + (a->tm_min - b->tm_min)) | |
8e718b4e | 2017 | + (a->tm_sec - b->tm_sec)); |
e3120ab5 JB |
2018 | } |
2019 | ||
2020 | DEFUN ("current-time-zone", Fcurrent_time_zone, Scurrent_time_zone, 0, 1, 0, | |
7ee72033 | 2021 | doc: /* Return the offset and name for the local time zone. |
a1f17501 PJ |
2022 | This returns a list of the form (OFFSET NAME). |
2023 | OFFSET is an integer number of seconds ahead of UTC (east of Greenwich). | |
2024 | A negative value means west of Greenwich. | |
2025 | NAME is a string giving the name of the time zone. | |
412f1fab | 2026 | If SPECIFIED-TIME is given, the time zone offset is determined from it |
5668fbb8 LT |
2027 | instead of using the current time. The argument should have the form |
2028 | (HIGH LOW . IGNORED). Thus, you can use times obtained from | |
2029 | `current-time' and from `file-attributes'. SPECIFIED-TIME can also | |
2030 | have the form (HIGH . LOW), but this is considered obsolete. | |
a1f17501 PJ |
2031 | |
2032 | Some operating systems cannot provide all this information to Emacs; | |
2033 | in this case, `current-time-zone' returns a list containing nil for | |
7ee72033 | 2034 | the data it can't find. */) |
5842a27b | 2035 | (Lisp_Object specified_time) |
c2662aea | 2036 | { |
d35af63c | 2037 | EMACS_TIME value; |
7ed806a7 | 2038 | int offset; |
e3120ab5 | 2039 | struct tm *t; |
7da0b018 | 2040 | struct tm localtm; |
7da0b018 PE |
2041 | Lisp_Object zone_offset, zone_name; |
2042 | ||
2043 | zone_offset = Qnil; | |
e9a9ae03 | 2044 | value = make_emacs_time (lisp_seconds_argument (specified_time), 0); |
d35af63c | 2045 | zone_name = format_time_string ("%Z", sizeof "%Z" - 1, value, 0, &localtm); |
4d7e6e51 | 2046 | block_input (); |
e9a9ae03 | 2047 | t = gmtime (emacs_secs_addr (&value)); |
7ed806a7 PE |
2048 | if (t) |
2049 | offset = tm_diff (&localtm, t); | |
4d7e6e51 | 2050 | unblock_input (); |
bcda42c8 YM |
2051 | |
2052 | if (t) | |
e3120ab5 | 2053 | { |
7da0b018 PE |
2054 | zone_offset = make_number (offset); |
2055 | if (SCHARS (zone_name) == 0) | |
e3120ab5 JB |
2056 | { |
2057 | /* No local time zone name is available; use "+-NNNN" instead. */ | |
33ef5c64 PE |
2058 | int m = offset / 60; |
2059 | int am = offset < 0 ? - m : m; | |
7da0b018 | 2060 | char buf[sizeof "+00" + INT_STRLEN_BOUND (int)]; |
98c6f1e3 | 2061 | zone_name = make_formatted_string (buf, "%c%02d%02d", |
a8290ec3 DA |
2062 | (offset < 0 ? '-' : '+'), |
2063 | am / 60, am % 60); | |
e3120ab5 | 2064 | } |
e3120ab5 | 2065 | } |
7da0b018 PE |
2066 | |
2067 | return list2 (zone_offset, zone_name); | |
c2662aea JB |
2068 | } |
2069 | ||
260e2e2a KH |
2070 | /* This holds the value of `environ' produced by the previous |
2071 | call to Fset_time_zone_rule, or 0 if Fset_time_zone_rule | |
2072 | has never been called. */ | |
2073 | static char **environbuf; | |
2074 | ||
a03fc5a6 JR |
2075 | /* This holds the startup value of the TZ environment variable so it |
2076 | can be restored if the user calls set-time-zone-rule with a nil | |
2077 | argument. */ | |
2078 | static char *initial_tz; | |
2079 | ||
143cb9a9 | 2080 | DEFUN ("set-time-zone-rule", Fset_time_zone_rule, Sset_time_zone_rule, 1, 1, 0, |
7ee72033 | 2081 | doc: /* Set the local time zone using TZ, a string specifying a time zone rule. |
a1f17501 | 2082 | If TZ is nil, use implementation-defined default time zone information. |
37e11a63 CY |
2083 | If TZ is t, use Universal Time. |
2084 | ||
2085 | Instead of calling this function, you typically want (setenv "TZ" TZ). | |
2086 | That changes both the environment of the Emacs process and the | |
2087 | variable `process-environment', whereas `set-time-zone-rule' affects | |
2088 | only the former. */) | |
5842a27b | 2089 | (Lisp_Object tz) |
143cb9a9 | 2090 | { |
8ea90aa3 | 2091 | const char *tzstring; |
7ed806a7 PE |
2092 | char **old_environbuf; |
2093 | ||
2094 | if (! (NILP (tz) || EQ (tz, Qt))) | |
2095 | CHECK_STRING (tz); | |
2096 | ||
4d7e6e51 | 2097 | block_input (); |
143cb9a9 | 2098 | |
a03fc5a6 | 2099 | /* When called for the first time, save the original TZ. */ |
7ed806a7 PE |
2100 | old_environbuf = environbuf; |
2101 | if (!old_environbuf) | |
a03fc5a6 JR |
2102 | initial_tz = (char *) getenv ("TZ"); |
2103 | ||
143cb9a9 | 2104 | if (NILP (tz)) |
a03fc5a6 | 2105 | tzstring = initial_tz; |
2e34157c | 2106 | else if (EQ (tz, Qt)) |
085e9fcb | 2107 | tzstring = "UTC0"; |
143cb9a9 | 2108 | else |
7ed806a7 | 2109 | tzstring = SSDATA (tz); |
143cb9a9 | 2110 | |
c59b5089 | 2111 | set_time_zone_rule (tzstring); |
c59b5089 PE |
2112 | environbuf = environ; |
2113 | ||
4d7e6e51 | 2114 | unblock_input (); |
7ed806a7 PE |
2115 | |
2116 | xfree (old_environbuf); | |
c59b5089 PE |
2117 | return Qnil; |
2118 | } | |
2119 | ||
e0bf9faf PE |
2120 | #ifdef LOCALTIME_CACHE |
2121 | ||
2122 | /* These two values are known to load tz files in buggy implementations, | |
2123 | i.e. Solaris 1 executables running under either Solaris 1 or Solaris 2. | |
1155c453 | 2124 | Their values shouldn't matter in non-buggy implementations. |
34a7a267 | 2125 | We don't use string literals for these strings, |
1155c453 RS |
2126 | since if a string in the environment is in readonly |
2127 | storage, it runs afoul of bugs in SVR4 and Solaris 2.3. | |
2128 | See Sun bugs 1113095 and 1114114, ``Timezone routines | |
2129 | improperly modify environment''. */ | |
2130 | ||
e0bf9faf PE |
2131 | static char set_time_zone_rule_tz1[] = "TZ=GMT+0"; |
2132 | static char set_time_zone_rule_tz2[] = "TZ=GMT+1"; | |
2133 | ||
2134 | #endif | |
1155c453 | 2135 | |
c59b5089 PE |
2136 | /* Set the local time zone rule to TZSTRING. |
2137 | This allocates memory into `environ', which it is the caller's | |
2138 | responsibility to free. */ | |
acb7cc89 | 2139 | |
a92ae0ce | 2140 | void |
a8fe7202 | 2141 | set_time_zone_rule (const char *tzstring) |
c59b5089 | 2142 | { |
c9f8d652 | 2143 | ptrdiff_t envptrs; |
c59b5089 PE |
2144 | char **from, **to, **newenv; |
2145 | ||
aafe5147 | 2146 | /* Make the ENVIRON vector longer with room for TZSTRING. */ |
143cb9a9 RS |
2147 | for (from = environ; *from; from++) |
2148 | continue; | |
2149 | envptrs = from - environ + 2; | |
38182d90 | 2150 | newenv = to = xmalloc (envptrs * sizeof *newenv |
23f86fce | 2151 | + (tzstring ? strlen (tzstring) + 4 : 0)); |
aafe5147 RS |
2152 | |
2153 | /* Add TZSTRING to the end of environ, as a value for TZ. */ | |
143cb9a9 RS |
2154 | if (tzstring) |
2155 | { | |
2156 | char *t = (char *) (to + envptrs); | |
2157 | strcpy (t, "TZ="); | |
2158 | strcat (t, tzstring); | |
2159 | *to++ = t; | |
2160 | } | |
2161 | ||
aafe5147 RS |
2162 | /* Copy the old environ vector elements into NEWENV, |
2163 | but don't copy the TZ variable. | |
2164 | So we have only one definition of TZ, which came from TZSTRING. */ | |
143cb9a9 RS |
2165 | for (from = environ; *from; from++) |
2166 | if (strncmp (*from, "TZ=", 3) != 0) | |
2167 | *to++ = *from; | |
2168 | *to = 0; | |
2169 | ||
2170 | environ = newenv; | |
143cb9a9 | 2171 | |
aafe5147 RS |
2172 | /* If we do have a TZSTRING, NEWENV points to the vector slot where |
2173 | the TZ variable is stored. If we do not have a TZSTRING, | |
2174 | TO points to the vector slot which has the terminating null. */ | |
2175 | ||
143cb9a9 | 2176 | #ifdef LOCALTIME_CACHE |
aafe5147 RS |
2177 | { |
2178 | /* In SunOS 4.1.3_U1 and 4.1.4, if TZ has a value like | |
2179 | "US/Pacific" that loads a tz file, then changes to a value like | |
2180 | "XXX0" that does not load a tz file, and then changes back to | |
2181 | its original value, the last change is (incorrectly) ignored. | |
2182 | Also, if TZ changes twice in succession to values that do | |
2183 | not load a tz file, tzset can dump core (see Sun bug#1225179). | |
2184 | The following code works around these bugs. */ | |
2185 | ||
aafe5147 RS |
2186 | if (tzstring) |
2187 | { | |
2188 | /* Temporarily set TZ to a value that loads a tz file | |
2189 | and that differs from tzstring. */ | |
2190 | char *tz = *newenv; | |
1155c453 RS |
2191 | *newenv = (strcmp (tzstring, set_time_zone_rule_tz1 + 3) == 0 |
2192 | ? set_time_zone_rule_tz2 : set_time_zone_rule_tz1); | |
aafe5147 RS |
2193 | tzset (); |
2194 | *newenv = tz; | |
2195 | } | |
2196 | else | |
2197 | { | |
2198 | /* The implied tzstring is unknown, so temporarily set TZ to | |
2199 | two different values that each load a tz file. */ | |
1155c453 | 2200 | *to = set_time_zone_rule_tz1; |
aafe5147 RS |
2201 | to[1] = 0; |
2202 | tzset (); | |
1155c453 | 2203 | *to = set_time_zone_rule_tz2; |
aafe5147 RS |
2204 | tzset (); |
2205 | *to = 0; | |
2206 | } | |
2207 | ||
2208 | /* Now TZ has the desired value, and tzset can be invoked safely. */ | |
2209 | } | |
2210 | ||
143cb9a9 RS |
2211 | tzset (); |
2212 | #endif | |
143cb9a9 | 2213 | } |
35692fe0 | 2214 | \f |
fb8106e8 KH |
2215 | /* Insert NARGS Lisp objects in the array ARGS by calling INSERT_FUNC |
2216 | (if a type of object is Lisp_Int) or INSERT_FROM_STRING_FUNC (if a | |
2217 | type of object is Lisp_String). INHERIT is passed to | |
2218 | INSERT_FROM_STRING_FUNC as the last argument. */ | |
2219 | ||
acb7cc89 | 2220 | static void |
9628fed7 | 2221 | general_insert_function (void (*insert_func) |
d311d28c | 2222 | (const char *, ptrdiff_t), |
9628fed7 | 2223 | void (*insert_from_string_func) |
d311d28c | 2224 | (Lisp_Object, ptrdiff_t, ptrdiff_t, |
a08d4ba7 PE |
2225 | ptrdiff_t, ptrdiff_t, bool), |
2226 | bool inherit, ptrdiff_t nargs, Lisp_Object *args) | |
fb8106e8 | 2227 | { |
f66c7cf8 | 2228 | ptrdiff_t argnum; |
a08d4ba7 | 2229 | Lisp_Object val; |
fb8106e8 KH |
2230 | |
2231 | for (argnum = 0; argnum < nargs; argnum++) | |
2232 | { | |
2233 | val = args[argnum]; | |
1b9c91ed | 2234 | if (CHARACTERP (val)) |
fb8106e8 | 2235 | { |
13bdea59 | 2236 | int c = XFASTINT (val); |
d5c2c403 | 2237 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
fb8106e8 KH |
2238 | int len; |
2239 | ||
4b4deea2 | 2240 | if (!NILP (BVAR (current_buffer, enable_multibyte_characters))) |
13bdea59 | 2241 | len = CHAR_STRING (c, str); |
fb8106e8 | 2242 | else |
13c148b8 | 2243 | { |
abbd3d23 | 2244 | str[0] = ASCII_CHAR_P (c) ? c : multibyte_char_to_unibyte (c); |
13c148b8 KH |
2245 | len = 1; |
2246 | } | |
b68864e5 | 2247 | (*insert_func) ((char *) str, len); |
fb8106e8 KH |
2248 | } |
2249 | else if (STRINGP (val)) | |
2250 | { | |
1f24f4fd | 2251 | (*insert_from_string_func) (val, 0, 0, |
d5db4077 KR |
2252 | SCHARS (val), |
2253 | SBYTES (val), | |
1f24f4fd | 2254 | inherit); |
fb8106e8 KH |
2255 | } |
2256 | else | |
b7f34213 | 2257 | wrong_type_argument (Qchar_or_string_p, val); |
fb8106e8 KH |
2258 | } |
2259 | } | |
2260 | ||
35692fe0 | 2261 | void |
971de7fb | 2262 | insert1 (Lisp_Object arg) |
35692fe0 JB |
2263 | { |
2264 | Finsert (1, &arg); | |
2265 | } | |
2266 | ||
52b14ac0 JB |
2267 | |
2268 | /* Callers passing one argument to Finsert need not gcpro the | |
2269 | argument "array", since the only element of the array will | |
2270 | not be used after calling insert or insert_from_string, so | |
2271 | we don't care if it gets trashed. */ | |
2272 | ||
a7ca3326 | 2273 | DEFUN ("insert", Finsert, Sinsert, 0, MANY, 0, |
7ee72033 | 2274 | doc: /* Insert the arguments, either strings or characters, at point. |
a1f17501 PJ |
2275 | Point and before-insertion markers move forward to end up |
2276 | after the inserted text. | |
2277 | Any other markers at the point of insertion remain before the text. | |
2278 | ||
2279 | If the current buffer is multibyte, unibyte strings are converted | |
72bb55c6 | 2280 | to multibyte for insertion (see `string-make-multibyte'). |
a1f17501 | 2281 | If the current buffer is unibyte, multibyte strings are converted |
72bb55c6 KS |
2282 | to unibyte for insertion (see `string-make-unibyte'). |
2283 | ||
2284 | When operating on binary data, it may be necessary to preserve the | |
2285 | original bytes of a unibyte string when inserting it into a multibyte | |
2286 | buffer; to accomplish this, apply `string-as-multibyte' to the string | |
2287 | and insert the result. | |
4bfbe194 MB |
2288 | |
2289 | usage: (insert &rest ARGS) */) | |
f66c7cf8 | 2290 | (ptrdiff_t nargs, Lisp_Object *args) |
35692fe0 | 2291 | { |
fb8106e8 | 2292 | general_insert_function (insert, insert_from_string, 0, nargs, args); |
be91036a RS |
2293 | return Qnil; |
2294 | } | |
2295 | ||
2296 | DEFUN ("insert-and-inherit", Finsert_and_inherit, Sinsert_and_inherit, | |
2297 | 0, MANY, 0, | |
7ee72033 | 2298 | doc: /* Insert the arguments at point, inheriting properties from adjoining text. |
a1f17501 PJ |
2299 | Point and before-insertion markers move forward to end up |
2300 | after the inserted text. | |
2301 | Any other markers at the point of insertion remain before the text. | |
2302 | ||
2303 | If the current buffer is multibyte, unibyte strings are converted | |
2304 | to multibyte for insertion (see `unibyte-char-to-multibyte'). | |
2305 | If the current buffer is unibyte, multibyte strings are converted | |
4bfbe194 MB |
2306 | to unibyte for insertion. |
2307 | ||
2308 | usage: (insert-and-inherit &rest ARGS) */) | |
f66c7cf8 | 2309 | (ptrdiff_t nargs, Lisp_Object *args) |
be91036a | 2310 | { |
fb8106e8 KH |
2311 | general_insert_function (insert_and_inherit, insert_from_string, 1, |
2312 | nargs, args); | |
35692fe0 JB |
2313 | return Qnil; |
2314 | } | |
2315 | ||
2316 | DEFUN ("insert-before-markers", Finsert_before_markers, Sinsert_before_markers, 0, MANY, 0, | |
7ee72033 | 2317 | doc: /* Insert strings or characters at point, relocating markers after the text. |
a1f17501 PJ |
2318 | Point and markers move forward to end up after the inserted text. |
2319 | ||
2320 | If the current buffer is multibyte, unibyte strings are converted | |
2321 | to multibyte for insertion (see `unibyte-char-to-multibyte'). | |
2322 | If the current buffer is unibyte, multibyte strings are converted | |
4bfbe194 MB |
2323 | to unibyte for insertion. |
2324 | ||
2325 | usage: (insert-before-markers &rest ARGS) */) | |
f66c7cf8 | 2326 | (ptrdiff_t nargs, Lisp_Object *args) |
35692fe0 | 2327 | { |
fb8106e8 KH |
2328 | general_insert_function (insert_before_markers, |
2329 | insert_from_string_before_markers, 0, | |
2330 | nargs, args); | |
be91036a RS |
2331 | return Qnil; |
2332 | } | |
2333 | ||
a0d76c27 EN |
2334 | DEFUN ("insert-before-markers-and-inherit", Finsert_and_inherit_before_markers, |
2335 | Sinsert_and_inherit_before_markers, 0, MANY, 0, | |
7ee72033 | 2336 | doc: /* Insert text at point, relocating markers and inheriting properties. |
a1f17501 PJ |
2337 | Point and markers move forward to end up after the inserted text. |
2338 | ||
2339 | If the current buffer is multibyte, unibyte strings are converted | |
2340 | to multibyte for insertion (see `unibyte-char-to-multibyte'). | |
2341 | If the current buffer is unibyte, multibyte strings are converted | |
4bfbe194 MB |
2342 | to unibyte for insertion. |
2343 | ||
2344 | usage: (insert-before-markers-and-inherit &rest ARGS) */) | |
f66c7cf8 | 2345 | (ptrdiff_t nargs, Lisp_Object *args) |
be91036a | 2346 | { |
fb8106e8 KH |
2347 | general_insert_function (insert_before_markers_and_inherit, |
2348 | insert_from_string_before_markers, 1, | |
2349 | nargs, args); | |
35692fe0 JB |
2350 | return Qnil; |
2351 | } | |
2352 | \f | |
ddfc8813 | 2353 | DEFUN ("insert-char", Finsert_char, Sinsert_char, 1, 3, |
9ea10cc3 | 2354 | "(list (read-char-by-name \"Insert character (Unicode name or hex): \")\ |
ddfc8813 RK |
2355 | (prefix-numeric-value current-prefix-arg)\ |
2356 | t))", | |
9671c13a | 2357 | doc: /* Insert COUNT copies of CHARACTER. |
9ea10cc3 CY |
2358 | Interactively, prompt for CHARACTER. You can specify CHARACTER in one |
2359 | of these ways: | |
2360 | ||
2361 | - As its Unicode character name, e.g. \"LATIN SMALL LETTER A\". | |
2362 | Completion is available; if you type a substring of the name | |
2363 | preceded by an asterisk `*', Emacs shows all names which include | |
2364 | that substring, not necessarily at the beginning of the name. | |
2365 | ||
2366 | - As a hexadecimal code point, e.g. 263A. Note that code points in | |
2367 | Emacs are equivalent to Unicode up to 10FFFF (which is the limit of | |
2368 | the Unicode code space). | |
2369 | ||
2370 | - As a code point with a radix specified with #, e.g. #o21430 | |
2371 | (octal), #x2318 (hex), or #10r8984 (decimal). | |
2372 | ||
2373 | If called interactively, COUNT is given by the prefix argument. If | |
2374 | omitted or nil, it defaults to 1. | |
2375 | ||
2376 | Inserting the character(s) relocates point and before-insertion | |
2377 | markers in the same ways as the function `insert'. | |
2378 | ||
2379 | The optional third argument INHERIT, if non-nil, says to inherit text | |
2380 | properties from adjoining text, if those properties are sticky. If | |
2381 | called interactively, INHERIT is t. */) | |
5842a27b | 2382 | (Lisp_Object character, Lisp_Object count, Lisp_Object inherit) |
35692fe0 | 2383 | { |
21d890a4 | 2384 | int i, stringlen; |
d311d28c | 2385 | register ptrdiff_t n; |
13bdea59 | 2386 | int c, len; |
d5c2c403 | 2387 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
21d890a4 | 2388 | char string[4000]; |
35692fe0 | 2389 | |
13bdea59 | 2390 | CHECK_CHARACTER (character); |
ddfc8813 RK |
2391 | if (NILP (count)) |
2392 | XSETFASTINT (count, 1); | |
b7826503 | 2393 | CHECK_NUMBER (count); |
13bdea59 | 2394 | c = XFASTINT (character); |
35692fe0 | 2395 | |
4b4deea2 | 2396 | if (!NILP (BVAR (current_buffer, enable_multibyte_characters))) |
13bdea59 | 2397 | len = CHAR_STRING (c, str); |
fb8106e8 | 2398 | else |
13bdea59 | 2399 | str[0] = c, len = 1; |
2e6813b0 PE |
2400 | if (XINT (count) <= 0) |
2401 | return Qnil; | |
d1f3d2af | 2402 | if (BUF_BYTES_MAX / len < XINT (count)) |
99561444 | 2403 | buffer_overflow (); |
fb8106e8 | 2404 | n = XINT (count) * len; |
21d890a4 | 2405 | stringlen = min (n, sizeof string - sizeof string % len); |
545b49b4 | 2406 | for (i = 0; i < stringlen; i++) |
fb8106e8 | 2407 | string[i] = str[i % len]; |
21d890a4 | 2408 | while (n > stringlen) |
35692fe0 | 2409 | { |
54e42e2d | 2410 | QUIT; |
e2eeabbb | 2411 | if (!NILP (inherit)) |
545b49b4 | 2412 | insert_and_inherit (string, stringlen); |
e2eeabbb | 2413 | else |
545b49b4 PE |
2414 | insert (string, stringlen); |
2415 | n -= stringlen; | |
35692fe0 | 2416 | } |
21d890a4 PE |
2417 | if (!NILP (inherit)) |
2418 | insert_and_inherit (string, n); | |
2419 | else | |
2420 | insert (string, n); | |
35692fe0 JB |
2421 | return Qnil; |
2422 | } | |
2423 | ||
48ef988f KH |
2424 | DEFUN ("insert-byte", Finsert_byte, Sinsert_byte, 2, 3, 0, |
2425 | doc: /* Insert COUNT (second arg) copies of BYTE (first arg). | |
2426 | Both arguments are required. | |
2427 | BYTE is a number of the range 0..255. | |
2428 | ||
2429 | If BYTE is 128..255 and the current buffer is multibyte, the | |
2430 | corresponding eight-bit character is inserted. | |
2431 | ||
2432 | Point, and before-insertion markers, are relocated as in the function `insert'. | |
2433 | The optional third arg INHERIT, if non-nil, says to inherit text properties | |
2434 | from adjoining text, if those properties are sticky. */) | |
5842a27b | 2435 | (Lisp_Object byte, Lisp_Object count, Lisp_Object inherit) |
48ef988f KH |
2436 | { |
2437 | CHECK_NUMBER (byte); | |
2438 | if (XINT (byte) < 0 || XINT (byte) > 255) | |
2439 | args_out_of_range_3 (byte, make_number (0), make_number (255)); | |
2440 | if (XINT (byte) >= 128 | |
4b4deea2 | 2441 | && ! NILP (BVAR (current_buffer, enable_multibyte_characters))) |
48ef988f | 2442 | XSETFASTINT (byte, BYTE8_TO_CHAR (XINT (byte))); |
ed398b0a | 2443 | return Finsert_char (byte, count, inherit); |
48ef988f KH |
2444 | } |
2445 | ||
35692fe0 | 2446 | \f |
ffd56f97 JB |
2447 | /* Making strings from buffer contents. */ |
2448 | ||
2449 | /* Return a Lisp_String containing the text of the current buffer from | |
74d6d8c5 | 2450 | START to END. If text properties are in use and the current buffer |
eb8c3be9 | 2451 | has properties in the range specified, the resulting string will also |
a08d4ba7 | 2452 | have them, if PROPS is true. |
ffd56f97 JB |
2453 | |
2454 | We don't want to use plain old make_string here, because it calls | |
2455 | make_uninit_string, which can cause the buffer arena to be | |
2456 | compacted. make_string has no way of knowing that the data has | |
2457 | been moved, and thus copies the wrong data into the string. This | |
2458 | doesn't effect most of the other users of make_string, so it should | |
2459 | be left as is. But we should use this function when conjuring | |
2460 | buffer substrings. */ | |
74d6d8c5 | 2461 | |
ffd56f97 | 2462 | Lisp_Object |
a08d4ba7 | 2463 | make_buffer_string (ptrdiff_t start, ptrdiff_t end, bool props) |
ffd56f97 | 2464 | { |
d311d28c PE |
2465 | ptrdiff_t start_byte = CHAR_TO_BYTE (start); |
2466 | ptrdiff_t end_byte = CHAR_TO_BYTE (end); | |
ffd56f97 | 2467 | |
88441c8e RS |
2468 | return make_buffer_string_both (start, start_byte, end, end_byte, props); |
2469 | } | |
2470 | ||
2471 | /* Return a Lisp_String containing the text of the current buffer from | |
2472 | START / START_BYTE to END / END_BYTE. | |
2473 | ||
2474 | If text properties are in use and the current buffer | |
2475 | has properties in the range specified, the resulting string will also | |
a08d4ba7 | 2476 | have them, if PROPS is true. |
88441c8e RS |
2477 | |
2478 | We don't want to use plain old make_string here, because it calls | |
2479 | make_uninit_string, which can cause the buffer arena to be | |
2480 | compacted. make_string has no way of knowing that the data has | |
2481 | been moved, and thus copies the wrong data into the string. This | |
2482 | doesn't effect most of the other users of make_string, so it should | |
2483 | be left as is. But we should use this function when conjuring | |
2484 | buffer substrings. */ | |
2485 | ||
2486 | Lisp_Object | |
d311d28c | 2487 | make_buffer_string_both (ptrdiff_t start, ptrdiff_t start_byte, |
a08d4ba7 | 2488 | ptrdiff_t end, ptrdiff_t end_byte, bool props) |
88441c8e RS |
2489 | { |
2490 | Lisp_Object result, tem, tem1; | |
2491 | ||
ffd56f97 JB |
2492 | if (start < GPT && GPT < end) |
2493 | move_gap (start); | |
2494 | ||
4b4deea2 | 2495 | if (! NILP (BVAR (current_buffer, enable_multibyte_characters))) |
5f75e666 RS |
2496 | result = make_uninit_multibyte_string (end - start, end_byte - start_byte); |
2497 | else | |
2498 | result = make_uninit_string (end - start); | |
72af86bd | 2499 | memcpy (SDATA (result), BYTE_POS_ADDR (start_byte), end_byte - start_byte); |
ffd56f97 | 2500 | |
260e2e2a | 2501 | /* If desired, update and copy the text properties. */ |
260e2e2a KH |
2502 | if (props) |
2503 | { | |
2504 | update_buffer_properties (start, end); | |
2505 | ||
2506 | tem = Fnext_property_change (make_number (start), Qnil, make_number (end)); | |
2507 | tem1 = Ftext_properties_at (make_number (start), Qnil); | |
2508 | ||
2509 | if (XINT (tem) != end || !NILP (tem1)) | |
ec1c14f6 RS |
2510 | copy_intervals_to_string (result, current_buffer, start, |
2511 | end - start); | |
260e2e2a | 2512 | } |
74d6d8c5 | 2513 | |
ffd56f97 JB |
2514 | return result; |
2515 | } | |
35692fe0 | 2516 | |
260e2e2a KH |
2517 | /* Call Vbuffer_access_fontify_functions for the range START ... END |
2518 | in the current buffer, if necessary. */ | |
2519 | ||
2520 | static void | |
d311d28c | 2521 | update_buffer_properties (ptrdiff_t start, ptrdiff_t end) |
260e2e2a | 2522 | { |
260e2e2a KH |
2523 | /* If this buffer has some access functions, |
2524 | call them, specifying the range of the buffer being accessed. */ | |
2525 | if (!NILP (Vbuffer_access_fontify_functions)) | |
2526 | { | |
2527 | Lisp_Object args[3]; | |
2528 | Lisp_Object tem; | |
2529 | ||
2530 | args[0] = Qbuffer_access_fontify_functions; | |
2531 | XSETINT (args[1], start); | |
2532 | XSETINT (args[2], end); | |
2533 | ||
2534 | /* But don't call them if we can tell that the work | |
2535 | has already been done. */ | |
2536 | if (!NILP (Vbuffer_access_fontified_property)) | |
2537 | { | |
2538 | tem = Ftext_property_any (args[1], args[2], | |
2539 | Vbuffer_access_fontified_property, | |
2540 | Qnil, Qnil); | |
2541 | if (! NILP (tem)) | |
ced1d19a | 2542 | Frun_hook_with_args (3, args); |
260e2e2a KH |
2543 | } |
2544 | else | |
ced1d19a | 2545 | Frun_hook_with_args (3, args); |
260e2e2a | 2546 | } |
260e2e2a KH |
2547 | } |
2548 | ||
a7ca3326 | 2549 | DEFUN ("buffer-substring", Fbuffer_substring, Sbuffer_substring, 2, 2, 0, |
7ee72033 | 2550 | doc: /* Return the contents of part of the current buffer as a string. |
a1f17501 PJ |
2551 | The two arguments START and END are character positions; |
2552 | they can be in either order. | |
2553 | The string returned is multibyte if the buffer is multibyte. | |
2554 | ||
2555 | This function copies the text properties of that part of the buffer | |
2556 | into the result string; if you don't want the text properties, | |
7ee72033 | 2557 | use `buffer-substring-no-properties' instead. */) |
5842a27b | 2558 | (Lisp_Object start, Lisp_Object end) |
35692fe0 | 2559 | { |
d311d28c | 2560 | register ptrdiff_t b, e; |
35692fe0 | 2561 | |
2591ec64 EN |
2562 | validate_region (&start, &end); |
2563 | b = XINT (start); | |
2564 | e = XINT (end); | |
35692fe0 | 2565 | |
2591ec64 | 2566 | return make_buffer_string (b, e, 1); |
260e2e2a KH |
2567 | } |
2568 | ||
2569 | DEFUN ("buffer-substring-no-properties", Fbuffer_substring_no_properties, | |
2570 | Sbuffer_substring_no_properties, 2, 2, 0, | |
7ee72033 | 2571 | doc: /* Return the characters of part of the buffer, without the text properties. |
a1f17501 | 2572 | The two arguments START and END are character positions; |
7ee72033 | 2573 | they can be in either order. */) |
5842a27b | 2574 | (Lisp_Object start, Lisp_Object end) |
260e2e2a | 2575 | { |
d311d28c | 2576 | register ptrdiff_t b, e; |
260e2e2a | 2577 | |
2591ec64 EN |
2578 | validate_region (&start, &end); |
2579 | b = XINT (start); | |
2580 | e = XINT (end); | |
260e2e2a | 2581 | |
2591ec64 | 2582 | return make_buffer_string (b, e, 0); |
35692fe0 JB |
2583 | } |
2584 | ||
a7ca3326 | 2585 | DEFUN ("buffer-string", Fbuffer_string, Sbuffer_string, 0, 0, 0, |
7ee72033 | 2586 | doc: /* Return the contents of the current buffer as a string. |
a1f17501 | 2587 | If narrowing is in effect, this function returns only the visible part |
7ee72033 | 2588 | of the buffer. */) |
5842a27b | 2589 | (void) |
35692fe0 | 2590 | { |
0daf6e8d | 2591 | return make_buffer_string (BEGV, ZV, 1); |
35692fe0 JB |
2592 | } |
2593 | ||
2594 | DEFUN ("insert-buffer-substring", Finsert_buffer_substring, Sinsert_buffer_substring, | |
deb8e082 | 2595 | 1, 3, 0, |
658ec670 | 2596 | doc: /* Insert before point a substring of the contents of BUFFER. |
a1f17501 | 2597 | BUFFER may be a buffer or a buffer name. |
412f1fab JB |
2598 | Arguments START and END are character positions specifying the substring. |
2599 | They default to the values of (point-min) and (point-max) in BUFFER. */) | |
5842a27b | 2600 | (Lisp_Object buffer, Lisp_Object start, Lisp_Object end) |
35692fe0 | 2601 | { |
29cdc13e | 2602 | register EMACS_INT b, e, temp; |
260e2e2a | 2603 | register struct buffer *bp, *obuf; |
658ec670 | 2604 | Lisp_Object buf; |
35692fe0 | 2605 | |
658ec670 JB |
2606 | buf = Fget_buffer (buffer); |
2607 | if (NILP (buf)) | |
2608 | nsberror (buffer); | |
2609 | bp = XBUFFER (buf); | |
e578f381 | 2610 | if (!BUFFER_LIVE_P (bp)) |
93b62e82 | 2611 | error ("Selecting deleted buffer"); |
35692fe0 | 2612 | |
2591ec64 EN |
2613 | if (NILP (start)) |
2614 | b = BUF_BEGV (bp); | |
35692fe0 JB |
2615 | else |
2616 | { | |
b7826503 | 2617 | CHECK_NUMBER_COERCE_MARKER (start); |
2591ec64 | 2618 | b = XINT (start); |
35692fe0 | 2619 | } |
2591ec64 EN |
2620 | if (NILP (end)) |
2621 | e = BUF_ZV (bp); | |
35692fe0 JB |
2622 | else |
2623 | { | |
b7826503 | 2624 | CHECK_NUMBER_COERCE_MARKER (end); |
2591ec64 | 2625 | e = XINT (end); |
35692fe0 JB |
2626 | } |
2627 | ||
2591ec64 EN |
2628 | if (b > e) |
2629 | temp = b, b = e, e = temp; | |
35692fe0 | 2630 | |
2591ec64 EN |
2631 | if (!(BUF_BEGV (bp) <= b && e <= BUF_ZV (bp))) |
2632 | args_out_of_range (start, end); | |
35692fe0 | 2633 | |
260e2e2a KH |
2634 | obuf = current_buffer; |
2635 | set_buffer_internal_1 (bp); | |
2591ec64 | 2636 | update_buffer_properties (b, e); |
260e2e2a KH |
2637 | set_buffer_internal_1 (obuf); |
2638 | ||
2591ec64 | 2639 | insert_from_buffer (bp, b, e - b, 0); |
35692fe0 JB |
2640 | return Qnil; |
2641 | } | |
e9cf2084 RS |
2642 | |
2643 | DEFUN ("compare-buffer-substrings", Fcompare_buffer_substrings, Scompare_buffer_substrings, | |
deb8e082 | 2644 | 6, 6, 0, |
7ee72033 | 2645 | doc: /* Compare two substrings of two buffers; return result as number. |
a1f17501 PJ |
2646 | the value is -N if first string is less after N-1 chars, |
2647 | +N if first string is greater after N-1 chars, or 0 if strings match. | |
2648 | Each substring is represented as three arguments: BUFFER, START and END. | |
2649 | That makes six args in all, three for each substring. | |
2650 | ||
2651 | The value of `case-fold-search' in the current buffer | |
7ee72033 | 2652 | determines whether case is significant or ignored. */) |
5842a27b | 2653 | (Lisp_Object buffer1, Lisp_Object start1, Lisp_Object end1, Lisp_Object buffer2, Lisp_Object start2, Lisp_Object end2) |
e9cf2084 | 2654 | { |
29cdc13e | 2655 | register EMACS_INT begp1, endp1, begp2, endp2, temp; |
e9cf2084 | 2656 | register struct buffer *bp1, *bp2; |
1149fd6f | 2657 | register Lisp_Object trt |
4b4deea2 TT |
2658 | = (!NILP (BVAR (current_buffer, case_fold_search)) |
2659 | ? BVAR (current_buffer, case_canon_table) : Qnil); | |
d311d28c PE |
2660 | ptrdiff_t chars = 0; |
2661 | ptrdiff_t i1, i2, i1_byte, i2_byte; | |
e9cf2084 RS |
2662 | |
2663 | /* Find the first buffer and its substring. */ | |
2664 | ||
2665 | if (NILP (buffer1)) | |
2666 | bp1 = current_buffer; | |
2667 | else | |
2668 | { | |
3fff2dfa RS |
2669 | Lisp_Object buf1; |
2670 | buf1 = Fget_buffer (buffer1); | |
2671 | if (NILP (buf1)) | |
2672 | nsberror (buffer1); | |
2673 | bp1 = XBUFFER (buf1); | |
e578f381 | 2674 | if (!BUFFER_LIVE_P (bp1)) |
93b62e82 | 2675 | error ("Selecting deleted buffer"); |
e9cf2084 RS |
2676 | } |
2677 | ||
2678 | if (NILP (start1)) | |
2679 | begp1 = BUF_BEGV (bp1); | |
2680 | else | |
2681 | { | |
b7826503 | 2682 | CHECK_NUMBER_COERCE_MARKER (start1); |
e9cf2084 RS |
2683 | begp1 = XINT (start1); |
2684 | } | |
2685 | if (NILP (end1)) | |
2686 | endp1 = BUF_ZV (bp1); | |
2687 | else | |
2688 | { | |
b7826503 | 2689 | CHECK_NUMBER_COERCE_MARKER (end1); |
e9cf2084 RS |
2690 | endp1 = XINT (end1); |
2691 | } | |
2692 | ||
2693 | if (begp1 > endp1) | |
2694 | temp = begp1, begp1 = endp1, endp1 = temp; | |
2695 | ||
2696 | if (!(BUF_BEGV (bp1) <= begp1 | |
2697 | && begp1 <= endp1 | |
2698 | && endp1 <= BUF_ZV (bp1))) | |
2699 | args_out_of_range (start1, end1); | |
2700 | ||
2701 | /* Likewise for second substring. */ | |
2702 | ||
2703 | if (NILP (buffer2)) | |
2704 | bp2 = current_buffer; | |
2705 | else | |
2706 | { | |
3fff2dfa RS |
2707 | Lisp_Object buf2; |
2708 | buf2 = Fget_buffer (buffer2); | |
2709 | if (NILP (buf2)) | |
2710 | nsberror (buffer2); | |
3b1fdd85 | 2711 | bp2 = XBUFFER (buf2); |
e578f381 | 2712 | if (!BUFFER_LIVE_P (bp2)) |
93b62e82 | 2713 | error ("Selecting deleted buffer"); |
e9cf2084 RS |
2714 | } |
2715 | ||
2716 | if (NILP (start2)) | |
2717 | begp2 = BUF_BEGV (bp2); | |
2718 | else | |
2719 | { | |
b7826503 | 2720 | CHECK_NUMBER_COERCE_MARKER (start2); |
e9cf2084 RS |
2721 | begp2 = XINT (start2); |
2722 | } | |
2723 | if (NILP (end2)) | |
2724 | endp2 = BUF_ZV (bp2); | |
2725 | else | |
2726 | { | |
b7826503 | 2727 | CHECK_NUMBER_COERCE_MARKER (end2); |
e9cf2084 RS |
2728 | endp2 = XINT (end2); |
2729 | } | |
2730 | ||
2731 | if (begp2 > endp2) | |
2732 | temp = begp2, begp2 = endp2, endp2 = temp; | |
2733 | ||
2734 | if (!(BUF_BEGV (bp2) <= begp2 | |
2735 | && begp2 <= endp2 | |
2736 | && endp2 <= BUF_ZV (bp2))) | |
2737 | args_out_of_range (start2, end2); | |
2738 | ||
07422a12 RS |
2739 | i1 = begp1; |
2740 | i2 = begp2; | |
2741 | i1_byte = buf_charpos_to_bytepos (bp1, i1); | |
2742 | i2_byte = buf_charpos_to_bytepos (bp2, i2); | |
e9cf2084 | 2743 | |
07422a12 | 2744 | while (i1 < endp1 && i2 < endp2) |
e9cf2084 | 2745 | { |
07422a12 RS |
2746 | /* When we find a mismatch, we must compare the |
2747 | characters, not just the bytes. */ | |
2748 | int c1, c2; | |
ec1c14f6 | 2749 | |
2221451f RS |
2750 | QUIT; |
2751 | ||
4b4deea2 | 2752 | if (! NILP (BVAR (bp1, enable_multibyte_characters))) |
07422a12 RS |
2753 | { |
2754 | c1 = BUF_FETCH_MULTIBYTE_CHAR (bp1, i1_byte); | |
2755 | BUF_INC_POS (bp1, i1_byte); | |
2756 | i1++; | |
2757 | } | |
2758 | else | |
2759 | { | |
2760 | c1 = BUF_FETCH_BYTE (bp1, i1); | |
4c0354d7 | 2761 | MAKE_CHAR_MULTIBYTE (c1); |
07422a12 RS |
2762 | i1++; |
2763 | } | |
2764 | ||
4b4deea2 | 2765 | if (! NILP (BVAR (bp2, enable_multibyte_characters))) |
07422a12 RS |
2766 | { |
2767 | c2 = BUF_FETCH_MULTIBYTE_CHAR (bp2, i2_byte); | |
2768 | BUF_INC_POS (bp2, i2_byte); | |
2769 | i2++; | |
2770 | } | |
2771 | else | |
2772 | { | |
2773 | c2 = BUF_FETCH_BYTE (bp2, i2); | |
4c0354d7 | 2774 | MAKE_CHAR_MULTIBYTE (c2); |
07422a12 RS |
2775 | i2++; |
2776 | } | |
ec1c14f6 | 2777 | |
1149fd6f | 2778 | if (!NILP (trt)) |
e9cf2084 | 2779 | { |
e3ccf108 DA |
2780 | c1 = char_table_translate (trt, c1); |
2781 | c2 = char_table_translate (trt, c2); | |
e9cf2084 RS |
2782 | } |
2783 | if (c1 < c2) | |
ec1c14f6 | 2784 | return make_number (- 1 - chars); |
e9cf2084 | 2785 | if (c1 > c2) |
ec1c14f6 | 2786 | return make_number (chars + 1); |
07422a12 RS |
2787 | |
2788 | chars++; | |
e9cf2084 RS |
2789 | } |
2790 | ||
2791 | /* The strings match as far as they go. | |
2792 | If one is shorter, that one is less. */ | |
07422a12 | 2793 | if (chars < endp1 - begp1) |
ec1c14f6 | 2794 | return make_number (chars + 1); |
07422a12 | 2795 | else if (chars < endp2 - begp2) |
ec1c14f6 | 2796 | return make_number (- chars - 1); |
e9cf2084 RS |
2797 | |
2798 | /* Same length too => they are equal. */ | |
2799 | return make_number (0); | |
2800 | } | |
35692fe0 | 2801 | \f |
d5a539cd | 2802 | static Lisp_Object |
971de7fb | 2803 | subst_char_in_region_unwind (Lisp_Object arg) |
d5a539cd | 2804 | { |
39eb03f1 PE |
2805 | bset_undo_list (current_buffer, arg); |
2806 | return arg; | |
d5a539cd RS |
2807 | } |
2808 | ||
c8e76b47 | 2809 | static Lisp_Object |
971de7fb | 2810 | subst_char_in_region_unwind_1 (Lisp_Object arg) |
c8e76b47 | 2811 | { |
39eb03f1 PE |
2812 | bset_filename (current_buffer, arg); |
2813 | return arg; | |
c8e76b47 RS |
2814 | } |
2815 | ||
35692fe0 | 2816 | DEFUN ("subst-char-in-region", Fsubst_char_in_region, |
deb8e082 | 2817 | Ssubst_char_in_region, 4, 5, 0, |
7ee72033 | 2818 | doc: /* From START to END, replace FROMCHAR with TOCHAR each time it occurs. |
a1f17501 PJ |
2819 | If optional arg NOUNDO is non-nil, don't record this change for undo |
2820 | and don't mark the buffer as really changed. | |
7ee72033 | 2821 | Both characters must have the same length of multi-byte form. */) |
5842a27b | 2822 | (Lisp_Object start, Lisp_Object end, Lisp_Object fromchar, Lisp_Object tochar, Lisp_Object noundo) |
35692fe0 | 2823 | { |
d311d28c | 2824 | register ptrdiff_t pos, pos_byte, stop, i, len, end_byte; |
0f2e2a3b SM |
2825 | /* Keep track of the first change in the buffer: |
2826 | if 0 we haven't found it yet. | |
2827 | if < 0 we've found it and we've run the before-change-function. | |
2828 | if > 0 we've actually performed it and the value is its position. */ | |
d311d28c | 2829 | ptrdiff_t changed = 0; |
d5c2c403 KH |
2830 | unsigned char fromstr[MAX_MULTIBYTE_LENGTH], tostr[MAX_MULTIBYTE_LENGTH]; |
2831 | unsigned char *p; | |
d311d28c | 2832 | ptrdiff_t count = SPECPDL_INDEX (); |
aa801467 KH |
2833 | #define COMBINING_NO 0 |
2834 | #define COMBINING_BEFORE 1 | |
2835 | #define COMBINING_AFTER 2 | |
2836 | #define COMBINING_BOTH (COMBINING_BEFORE | COMBINING_AFTER) | |
2837 | int maybe_byte_combining = COMBINING_NO; | |
d311d28c | 2838 | ptrdiff_t last_changed = 0; |
a08d4ba7 PE |
2839 | bool multibyte_p |
2840 | = !NILP (BVAR (current_buffer, enable_multibyte_characters)); | |
13bdea59 | 2841 | int fromc, toc; |
35692fe0 | 2842 | |
0f2e2a3b SM |
2843 | restart: |
2844 | ||
35692fe0 | 2845 | validate_region (&start, &end); |
13bdea59 PE |
2846 | CHECK_CHARACTER (fromchar); |
2847 | CHECK_CHARACTER (tochar); | |
2848 | fromc = XFASTINT (fromchar); | |
2849 | toc = XFASTINT (tochar); | |
35692fe0 | 2850 | |
7439e5b9 | 2851 | if (multibyte_p) |
fb8106e8 | 2852 | { |
13bdea59 PE |
2853 | len = CHAR_STRING (fromc, fromstr); |
2854 | if (CHAR_STRING (toc, tostr) != len) | |
fdd6025e | 2855 | error ("Characters in `subst-char-in-region' have different byte-lengths"); |
aa801467 KH |
2856 | if (!ASCII_BYTE_P (*tostr)) |
2857 | { | |
2858 | /* If *TOSTR is in the range 0x80..0x9F and TOCHAR is not a | |
2859 | complete multibyte character, it may be combined with the | |
2860 | after bytes. If it is in the range 0xA0..0xFF, it may be | |
2861 | combined with the before and after bytes. */ | |
2862 | if (!CHAR_HEAD_P (*tostr)) | |
2863 | maybe_byte_combining = COMBINING_BOTH; | |
2864 | else if (BYTES_BY_CHAR_HEAD (*tostr) > len) | |
2865 | maybe_byte_combining = COMBINING_AFTER; | |
2866 | } | |
fb8106e8 KH |
2867 | } |
2868 | else | |
2869 | { | |
2870 | len = 1; | |
13bdea59 PE |
2871 | fromstr[0] = fromc; |
2872 | tostr[0] = toc; | |
fb8106e8 KH |
2873 | } |
2874 | ||
84246b95 KH |
2875 | pos = XINT (start); |
2876 | pos_byte = CHAR_TO_BYTE (pos); | |
ec1c14f6 RS |
2877 | stop = CHAR_TO_BYTE (XINT (end)); |
2878 | end_byte = stop; | |
35692fe0 | 2879 | |
d5a539cd RS |
2880 | /* If we don't want undo, turn off putting stuff on the list. |
2881 | That's faster than getting rid of things, | |
c8e76b47 RS |
2882 | and it prevents even the entry for a first change. |
2883 | Also inhibit locking the file. */ | |
0f2e2a3b | 2884 | if (!changed && !NILP (noundo)) |
d5a539cd RS |
2885 | { |
2886 | record_unwind_protect (subst_char_in_region_unwind, | |
4b4deea2 | 2887 | BVAR (current_buffer, undo_list)); |
39eb03f1 | 2888 | bset_undo_list (current_buffer, Qt); |
c8e76b47 RS |
2889 | /* Don't do file-locking. */ |
2890 | record_unwind_protect (subst_char_in_region_unwind_1, | |
4b4deea2 | 2891 | BVAR (current_buffer, filename)); |
39eb03f1 | 2892 | bset_filename (current_buffer, Qnil); |
d5a539cd RS |
2893 | } |
2894 | ||
84246b95 | 2895 | if (pos_byte < GPT_BYTE) |
ec1c14f6 | 2896 | stop = min (stop, GPT_BYTE); |
fb8106e8 | 2897 | while (1) |
35692fe0 | 2898 | { |
d311d28c | 2899 | ptrdiff_t pos_byte_next = pos_byte; |
a3360ff9 | 2900 | |
84246b95 | 2901 | if (pos_byte >= stop) |
fb8106e8 | 2902 | { |
84246b95 | 2903 | if (pos_byte >= end_byte) break; |
ec1c14f6 | 2904 | stop = end_byte; |
fb8106e8 | 2905 | } |
84246b95 | 2906 | p = BYTE_POS_ADDR (pos_byte); |
7439e5b9 GM |
2907 | if (multibyte_p) |
2908 | INC_POS (pos_byte_next); | |
2909 | else | |
2910 | ++pos_byte_next; | |
a3360ff9 KH |
2911 | if (pos_byte_next - pos_byte == len |
2912 | && p[0] == fromstr[0] | |
fb8106e8 KH |
2913 | && (len == 1 |
2914 | || (p[1] == fromstr[1] | |
2915 | && (len == 2 || (p[2] == fromstr[2] | |
2916 | && (len == 3 || p[3] == fromstr[3])))))) | |
35692fe0 | 2917 | { |
0f2e2a3b SM |
2918 | if (changed < 0) |
2919 | /* We've already seen this and run the before-change-function; | |
2920 | this time we only need to record the actual position. */ | |
2921 | changed = pos; | |
2922 | else if (!changed) | |
60b96ee7 | 2923 | { |
0f2e2a3b | 2924 | changed = -1; |
20edc1c9 | 2925 | modify_region_1 (pos, XINT (end), false); |
7653d030 RS |
2926 | |
2927 | if (! NILP (noundo)) | |
2928 | { | |
1e158d25 RS |
2929 | if (MODIFF - 1 == SAVE_MODIFF) |
2930 | SAVE_MODIFF++; | |
0b5397c2 SM |
2931 | if (MODIFF - 1 == BUF_AUTOSAVE_MODIFF (current_buffer)) |
2932 | BUF_AUTOSAVE_MODIFF (current_buffer)++; | |
7653d030 | 2933 | } |
0f2e2a3b SM |
2934 | |
2935 | /* The before-change-function may have moved the gap | |
2936 | or even modified the buffer so we should start over. */ | |
2937 | goto restart; | |
60b96ee7 RS |
2938 | } |
2939 | ||
0c1e3b85 | 2940 | /* Take care of the case where the new character |
34a7a267 | 2941 | combines with neighboring bytes. */ |
a3360ff9 | 2942 | if (maybe_byte_combining |
aa801467 KH |
2943 | && (maybe_byte_combining == COMBINING_AFTER |
2944 | ? (pos_byte_next < Z_BYTE | |
2945 | && ! CHAR_HEAD_P (FETCH_BYTE (pos_byte_next))) | |
2946 | : ((pos_byte_next < Z_BYTE | |
2947 | && ! CHAR_HEAD_P (FETCH_BYTE (pos_byte_next))) | |
2948 | || (pos_byte > BEG_BYTE | |
2949 | && ! ASCII_BYTE_P (FETCH_BYTE (pos_byte - 1)))))) | |
0c1e3b85 RS |
2950 | { |
2951 | Lisp_Object tem, string; | |
2952 | ||
2953 | struct gcpro gcpro1; | |
2954 | ||
4b4deea2 | 2955 | tem = BVAR (current_buffer, undo_list); |
0c1e3b85 RS |
2956 | GCPRO1 (tem); |
2957 | ||
aa801467 | 2958 | /* Make a multibyte string containing this single character. */ |
e7f8264d | 2959 | string = make_multibyte_string ((char *) tostr, 1, len); |
0c1e3b85 RS |
2960 | /* replace_range is less efficient, because it moves the gap, |
2961 | but it handles combining correctly. */ | |
2962 | replace_range (pos, pos + 1, string, | |
9869520f | 2963 | 0, 0, 1); |
a3360ff9 KH |
2964 | pos_byte_next = CHAR_TO_BYTE (pos); |
2965 | if (pos_byte_next > pos_byte) | |
2966 | /* Before combining happened. We should not increment | |
3f5409d3 KH |
2967 | POS. So, to cancel the later increment of POS, |
2968 | decrease it now. */ | |
2969 | pos--; | |
a3360ff9 | 2970 | else |
3f5409d3 | 2971 | INC_POS (pos_byte_next); |
34a7a267 | 2972 | |
0c1e3b85 | 2973 | if (! NILP (noundo)) |
39eb03f1 | 2974 | bset_undo_list (current_buffer, tem); |
0c1e3b85 RS |
2975 | |
2976 | UNGCPRO; | |
2977 | } | |
2978 | else | |
2979 | { | |
2980 | if (NILP (noundo)) | |
2981 | record_change (pos, 1); | |
2982 | for (i = 0; i < len; i++) *p++ = tostr[i]; | |
2983 | } | |
d5c2c403 | 2984 | last_changed = pos + 1; |
35692fe0 | 2985 | } |
3f5409d3 KH |
2986 | pos_byte = pos_byte_next; |
2987 | pos++; | |
35692fe0 JB |
2988 | } |
2989 | ||
0f2e2a3b | 2990 | if (changed > 0) |
d5c2c403 KH |
2991 | { |
2992 | signal_after_change (changed, | |
2993 | last_changed - changed, last_changed - changed); | |
2994 | update_compositions (changed, last_changed, CHECK_ALL); | |
2995 | } | |
60b96ee7 | 2996 | |
d5a539cd | 2997 | unbind_to (count, Qnil); |
35692fe0 JB |
2998 | return Qnil; |
2999 | } | |
3000 | ||
f555f8cf | 3001 | |
d311d28c | 3002 | static Lisp_Object check_translation (ptrdiff_t, ptrdiff_t, ptrdiff_t, |
c8a66ab8 | 3003 | Lisp_Object); |
f555f8cf KH |
3004 | |
3005 | /* Helper function for Ftranslate_region_internal. | |
3006 | ||
3007 | Check if a character sequence at POS (POS_BYTE) matches an element | |
3008 | of VAL. VAL is a list (([FROM-CHAR ...] . TO) ...). If a matching | |
3009 | element is found, return it. Otherwise return Qnil. */ | |
3010 | ||
3011 | static Lisp_Object | |
d311d28c | 3012 | check_translation (ptrdiff_t pos, ptrdiff_t pos_byte, ptrdiff_t end, |
c8a66ab8 | 3013 | Lisp_Object val) |
f555f8cf KH |
3014 | { |
3015 | int buf_size = 16, buf_used = 0; | |
3016 | int *buf = alloca (sizeof (int) * buf_size); | |
3017 | ||
3018 | for (; CONSP (val); val = XCDR (val)) | |
3019 | { | |
3020 | Lisp_Object elt; | |
d311d28c | 3021 | ptrdiff_t len, i; |
f555f8cf KH |
3022 | |
3023 | elt = XCAR (val); | |
3024 | if (! CONSP (elt)) | |
3025 | continue; | |
3026 | elt = XCAR (elt); | |
3027 | if (! VECTORP (elt)) | |
3028 | continue; | |
3029 | len = ASIZE (elt); | |
3030 | if (len <= end - pos) | |
3031 | { | |
3032 | for (i = 0; i < len; i++) | |
3033 | { | |
3034 | if (buf_used <= i) | |
3035 | { | |
3036 | unsigned char *p = BYTE_POS_ADDR (pos_byte); | |
c8a66ab8 | 3037 | int len1; |
f555f8cf KH |
3038 | |
3039 | if (buf_used == buf_size) | |
3040 | { | |
3041 | int *newbuf; | |
3042 | ||
3043 | buf_size += 16; | |
3044 | newbuf = alloca (sizeof (int) * buf_size); | |
3045 | memcpy (newbuf, buf, sizeof (int) * buf_used); | |
3046 | buf = newbuf; | |
3047 | } | |
c8a66ab8 EZ |
3048 | buf[buf_used++] = STRING_CHAR_AND_LENGTH (p, len1); |
3049 | pos_byte += len1; | |
f555f8cf KH |
3050 | } |
3051 | if (XINT (AREF (elt, i)) != buf[i]) | |
3052 | break; | |
3053 | } | |
3054 | if (i == len) | |
3055 | return XCAR (val); | |
3056 | } | |
3057 | } | |
3058 | return Qnil; | |
3059 | } | |
3060 | ||
3061 | ||
8583605b KH |
3062 | DEFUN ("translate-region-internal", Ftranslate_region_internal, |
3063 | Stranslate_region_internal, 3, 3, 0, | |
3064 | doc: /* Internal use only. | |
3065 | From START to END, translate characters according to TABLE. | |
f555f8cf KH |
3066 | TABLE is a string or a char-table; the Nth character in it is the |
3067 | mapping for the character with code N. | |
7ee72033 | 3068 | It returns the number of characters changed. */) |
5842a27b | 3069 | (Lisp_Object start, Lisp_Object end, register Lisp_Object table) |
35692fe0 | 3070 | { |
35692fe0 | 3071 | register unsigned char *tt; /* Trans table. */ |
35692fe0 JB |
3072 | register int nc; /* New character. */ |
3073 | int cnt; /* Number of changes made. */ | |
d311d28c PE |
3074 | ptrdiff_t size; /* Size of translate table. */ |
3075 | ptrdiff_t pos, pos_byte, end_pos; | |
a08d4ba7 PE |
3076 | bool multibyte = !NILP (BVAR (current_buffer, enable_multibyte_characters)); |
3077 | bool string_multibyte IF_LINT (= 0); | |
35692fe0 JB |
3078 | |
3079 | validate_region (&start, &end); | |
8583605b | 3080 | if (CHAR_TABLE_P (table)) |
f555f8cf KH |
3081 | { |
3082 | if (! EQ (XCHAR_TABLE (table)->purpose, Qtranslation_table)) | |
3083 | error ("Not a translation table"); | |
eb3d9ec7 | 3084 | size = MAX_CHAR; |
f555f8cf KH |
3085 | tt = NULL; |
3086 | } | |
8583605b KH |
3087 | else |
3088 | { | |
3089 | CHECK_STRING (table); | |
3090 | ||
eb3d9ec7 KH |
3091 | if (! multibyte && (SCHARS (table) < SBYTES (table))) |
3092 | table = string_make_unibyte (table); | |
8583605b KH |
3093 | string_multibyte = SCHARS (table) < SBYTES (table); |
3094 | size = SBYTES (table); | |
3095 | tt = SDATA (table); | |
3096 | } | |
35692fe0 | 3097 | |
1f24f4fd | 3098 | pos = XINT (start); |
8583605b | 3099 | pos_byte = CHAR_TO_BYTE (pos); |
e65837df | 3100 | end_pos = XINT (end); |
20edc1c9 | 3101 | modify_region_1 (pos, end_pos, false); |
35692fe0 JB |
3102 | |
3103 | cnt = 0; | |
f555f8cf | 3104 | for (; pos < end_pos; ) |
35692fe0 | 3105 | { |
ec1c14f6 | 3106 | register unsigned char *p = BYTE_POS_ADDR (pos_byte); |
8583605b KH |
3107 | unsigned char *str, buf[MAX_MULTIBYTE_LENGTH]; |
3108 | int len, str_len; | |
1f24f4fd | 3109 | int oc; |
f555f8cf | 3110 | Lisp_Object val; |
ec1c14f6 | 3111 | |
e8cce5af | 3112 | if (multibyte) |
62a6e103 | 3113 | oc = STRING_CHAR_AND_LENGTH (p, len); |
e8cce5af | 3114 | else |
eb3d9ec7 KH |
3115 | oc = *p, len = 1; |
3116 | if (oc < size) | |
35692fe0 | 3117 | { |
eb3d9ec7 | 3118 | if (tt) |
35692fe0 | 3119 | { |
fa056b08 KS |
3120 | /* Reload as signal_after_change in last iteration may GC. */ |
3121 | tt = SDATA (table); | |
8583605b | 3122 | if (string_multibyte) |
0c1e3b85 | 3123 | { |
8583605b | 3124 | str = tt + string_char_to_byte (table, oc); |
62a6e103 | 3125 | nc = STRING_CHAR_AND_LENGTH (str, str_len); |
0c1e3b85 RS |
3126 | } |
3127 | else | |
3128 | { | |
eb3d9ec7 KH |
3129 | nc = tt[oc]; |
3130 | if (! ASCII_BYTE_P (nc) && multibyte) | |
3131 | { | |
3132 | str_len = BYTE8_STRING (nc, buf); | |
3133 | str = buf; | |
3134 | } | |
3135 | else | |
3136 | { | |
3137 | str_len = 1; | |
3138 | str = tt + oc; | |
3139 | } | |
0c1e3b85 | 3140 | } |
35692fe0 | 3141 | } |
eb3d9ec7 | 3142 | else |
f555f8cf | 3143 | { |
eb3d9ec7 KH |
3144 | nc = oc; |
3145 | val = CHAR_TABLE_REF (table, oc); | |
045eb8d9 | 3146 | if (CHARACTERP (val)) |
eb3d9ec7 | 3147 | { |
045eb8d9 | 3148 | nc = XFASTINT (val); |
eb3d9ec7 KH |
3149 | str_len = CHAR_STRING (nc, buf); |
3150 | str = buf; | |
3151 | } | |
3152 | else if (VECTORP (val) || (CONSP (val))) | |
3153 | { | |
3154 | /* VAL is [TO_CHAR ...] or (([FROM-CHAR ...] . TO) ...) | |
3155 | where TO is TO-CHAR or [TO-CHAR ...]. */ | |
3156 | nc = -1; | |
3157 | } | |
f555f8cf | 3158 | } |
8583605b | 3159 | |
eb3d9ec7 | 3160 | if (nc != oc && nc >= 0) |
8583605b | 3161 | { |
f555f8cf KH |
3162 | /* Simple one char to one char translation. */ |
3163 | if (len != str_len) | |
3164 | { | |
3165 | Lisp_Object string; | |
8583605b | 3166 | |
f555f8cf KH |
3167 | /* This is less efficient, because it moves the gap, |
3168 | but it should handle multibyte characters correctly. */ | |
e7f8264d | 3169 | string = make_multibyte_string ((char *) str, 1, str_len); |
f555f8cf KH |
3170 | replace_range (pos, pos + 1, string, 1, 0, 1); |
3171 | len = str_len; | |
3172 | } | |
3173 | else | |
3174 | { | |
3175 | record_change (pos, 1); | |
3176 | while (str_len-- > 0) | |
3177 | *p++ = *str++; | |
3178 | signal_after_change (pos, 1, 1); | |
3179 | update_compositions (pos, pos + 1, CHECK_BORDER); | |
3180 | } | |
3181 | ++cnt; | |
8583605b | 3182 | } |
eb3d9ec7 | 3183 | else if (nc < 0) |
8583605b | 3184 | { |
f555f8cf KH |
3185 | Lisp_Object string; |
3186 | ||
3187 | if (CONSP (val)) | |
3188 | { | |
3189 | val = check_translation (pos, pos_byte, end_pos, val); | |
3190 | if (NILP (val)) | |
3191 | { | |
3192 | pos_byte += len; | |
3193 | pos++; | |
3194 | continue; | |
3195 | } | |
3196 | /* VAL is ([FROM-CHAR ...] . TO). */ | |
3197 | len = ASIZE (XCAR (val)); | |
3198 | val = XCDR (val); | |
3199 | } | |
3200 | else | |
3201 | len = 1; | |
3202 | ||
3203 | if (VECTORP (val)) | |
3204 | { | |
bde25748 | 3205 | string = Fconcat (1, &val); |
f555f8cf KH |
3206 | } |
3207 | else | |
3208 | { | |
3209 | string = Fmake_string (make_number (1), val); | |
3210 | } | |
3211 | replace_range (pos, pos + len, string, 1, 0, 1); | |
3212 | pos_byte += SBYTES (string); | |
3213 | pos += SCHARS (string); | |
3214 | cnt += SCHARS (string); | |
3215 | end_pos += SCHARS (string) - len; | |
3216 | continue; | |
8583605b | 3217 | } |
8583605b KH |
3218 | } |
3219 | pos_byte += len; | |
3f5409d3 | 3220 | pos++; |
35692fe0 JB |
3221 | } |
3222 | ||
ec1c14f6 | 3223 | return make_number (cnt); |
35692fe0 JB |
3224 | } |
3225 | ||
a7ca3326 | 3226 | DEFUN ("delete-region", Fdelete_region, Sdelete_region, 2, 2, "r", |
3bbd2265 | 3227 | doc: /* Delete the text between START and END. |
f0fcdf4b LMI |
3228 | If called interactively, delete the region between point and mark. |
3229 | This command deletes buffer text without modifying the kill ring. */) | |
5842a27b | 3230 | (Lisp_Object start, Lisp_Object end) |
35692fe0 | 3231 | { |
2591ec64 EN |
3232 | validate_region (&start, &end); |
3233 | del_range (XINT (start), XINT (end)); | |
35692fe0 JB |
3234 | return Qnil; |
3235 | } | |
7dae4502 SM |
3236 | |
3237 | DEFUN ("delete-and-extract-region", Fdelete_and_extract_region, | |
3238 | Sdelete_and_extract_region, 2, 2, 0, | |
7ee72033 | 3239 | doc: /* Delete the text between START and END and return it. */) |
5842a27b | 3240 | (Lisp_Object start, Lisp_Object end) |
7dae4502 SM |
3241 | { |
3242 | validate_region (&start, &end); | |
8550b998 | 3243 | if (XINT (start) == XINT (end)) |
977f6cfb | 3244 | return empty_unibyte_string; |
7dae4502 SM |
3245 | return del_range_1 (XINT (start), XINT (end), 1, 1); |
3246 | } | |
35692fe0 | 3247 | \f |
a7ca3326 | 3248 | DEFUN ("widen", Fwiden, Swiden, 0, 0, "", |
7ee72033 MB |
3249 | doc: /* Remove restrictions (narrowing) from current buffer. |
3250 | This allows the buffer's full text to be seen and edited. */) | |
5842a27b | 3251 | (void) |
35692fe0 | 3252 | { |
2cad2e34 RS |
3253 | if (BEG != BEGV || Z != ZV) |
3254 | current_buffer->clip_changed = 1; | |
35692fe0 | 3255 | BEGV = BEG; |
ec1c14f6 RS |
3256 | BEGV_BYTE = BEG_BYTE; |
3257 | SET_BUF_ZV_BOTH (current_buffer, Z, Z_BYTE); | |
52b14ac0 JB |
3258 | /* Changing the buffer bounds invalidates any recorded current column. */ |
3259 | invalidate_current_column (); | |
35692fe0 JB |
3260 | return Qnil; |
3261 | } | |
3262 | ||
a7ca3326 | 3263 | DEFUN ("narrow-to-region", Fnarrow_to_region, Snarrow_to_region, 2, 2, "r", |
7ee72033 | 3264 | doc: /* Restrict editing in this buffer to the current region. |
a1f17501 PJ |
3265 | The rest of the text becomes temporarily invisible and untouchable |
3266 | but is not deleted; if you save the buffer in a file, the invisible | |
3267 | text is included in the file. \\[widen] makes all visible again. | |
3268 | See also `save-restriction'. | |
3269 | ||
3270 | When calling from a program, pass two arguments; positions (integers | |
7ee72033 | 3271 | or markers) bounding the text that should remain visible. */) |
5842a27b | 3272 | (register Lisp_Object start, Lisp_Object end) |
35692fe0 | 3273 | { |
b7826503 PJ |
3274 | CHECK_NUMBER_COERCE_MARKER (start); |
3275 | CHECK_NUMBER_COERCE_MARKER (end); | |
35692fe0 | 3276 | |
2591ec64 | 3277 | if (XINT (start) > XINT (end)) |
35692fe0 | 3278 | { |
b5a6948e | 3279 | Lisp_Object tem; |
2591ec64 | 3280 | tem = start; start = end; end = tem; |
35692fe0 JB |
3281 | } |
3282 | ||
2591ec64 EN |
3283 | if (!(BEG <= XINT (start) && XINT (start) <= XINT (end) && XINT (end) <= Z)) |
3284 | args_out_of_range (start, end); | |
35692fe0 | 3285 | |
2cad2e34 RS |
3286 | if (BEGV != XFASTINT (start) || ZV != XFASTINT (end)) |
3287 | current_buffer->clip_changed = 1; | |
3288 | ||
ec1c14f6 | 3289 | SET_BUF_BEGV (current_buffer, XFASTINT (start)); |
2591ec64 | 3290 | SET_BUF_ZV (current_buffer, XFASTINT (end)); |
6ec8bbd2 | 3291 | if (PT < XFASTINT (start)) |
2591ec64 | 3292 | SET_PT (XFASTINT (start)); |
6ec8bbd2 | 3293 | if (PT > XFASTINT (end)) |
2591ec64 | 3294 | SET_PT (XFASTINT (end)); |
52b14ac0 JB |
3295 | /* Changing the buffer bounds invalidates any recorded current column. */ |
3296 | invalidate_current_column (); | |
35692fe0 JB |
3297 | return Qnil; |
3298 | } | |
3299 | ||
3300 | Lisp_Object | |
971de7fb | 3301 | save_restriction_save (void) |
35692fe0 | 3302 | { |
d6abb4c7 MB |
3303 | if (BEGV == BEG && ZV == Z) |
3304 | /* The common case that the buffer isn't narrowed. | |
3305 | We return just the buffer object, which save_restriction_restore | |
3306 | recognizes as meaning `no restriction'. */ | |
3307 | return Fcurrent_buffer (); | |
3308 | else | |
3309 | /* We have to save a restriction, so return a pair of markers, one | |
3310 | for the beginning and one for the end. */ | |
3311 | { | |
3312 | Lisp_Object beg, end; | |
3313 | ||
657924ff DA |
3314 | beg = build_marker (current_buffer, BEGV, BEGV_BYTE); |
3315 | end = build_marker (current_buffer, ZV, ZV_BYTE); | |
35692fe0 | 3316 | |
d6abb4c7 | 3317 | /* END must move forward if text is inserted at its exact location. */ |
5e617bc2 | 3318 | XMARKER (end)->insertion_type = 1; |
d6abb4c7 MB |
3319 | |
3320 | return Fcons (beg, end); | |
3321 | } | |
35692fe0 JB |
3322 | } |
3323 | ||
3324 | Lisp_Object | |
971de7fb | 3325 | save_restriction_restore (Lisp_Object data) |
35692fe0 | 3326 | { |
d528b1ce SM |
3327 | struct buffer *cur = NULL; |
3328 | struct buffer *buf = (CONSP (data) | |
3329 | ? XMARKER (XCAR (data))->buffer | |
3330 | : XBUFFER (data)); | |
3331 | ||
4b4deea2 | 3332 | if (buf && buf != current_buffer && !NILP (BVAR (buf, pt_marker))) |
d528b1ce SM |
3333 | { /* If `buf' uses markers to keep track of PT, BEGV, and ZV (as |
3334 | is the case if it is or has an indirect buffer), then make | |
3335 | sure it is current before we update BEGV, so | |
3336 | set_buffer_internal takes care of managing those markers. */ | |
3337 | cur = current_buffer; | |
3338 | set_buffer_internal (buf); | |
3339 | } | |
3340 | ||
d6abb4c7 MB |
3341 | if (CONSP (data)) |
3342 | /* A pair of marks bounding a saved restriction. */ | |
35692fe0 | 3343 | { |
d6abb4c7 MB |
3344 | struct Lisp_Marker *beg = XMARKER (XCAR (data)); |
3345 | struct Lisp_Marker *end = XMARKER (XCDR (data)); | |
d528b1ce | 3346 | eassert (buf == end->buffer); |
2cad2e34 | 3347 | |
63884563 RS |
3348 | if (buf /* Verify marker still points to a buffer. */ |
3349 | && (beg->charpos != BUF_BEGV (buf) || end->charpos != BUF_ZV (buf))) | |
d6abb4c7 MB |
3350 | /* The restriction has changed from the saved one, so restore |
3351 | the saved restriction. */ | |
3352 | { | |
d311d28c | 3353 | ptrdiff_t pt = BUF_PT (buf); |
d6abb4c7 MB |
3354 | |
3355 | SET_BUF_BEGV_BOTH (buf, beg->charpos, beg->bytepos); | |
3356 | SET_BUF_ZV_BOTH (buf, end->charpos, end->bytepos); | |
3357 | ||
3358 | if (pt < beg->charpos || pt > end->charpos) | |
3359 | /* The point is outside the new visible range, move it inside. */ | |
3360 | SET_BUF_PT_BOTH (buf, | |
3361 | clip_to_bounds (beg->charpos, pt, end->charpos), | |
63884563 | 3362 | clip_to_bounds (beg->bytepos, BUF_PT_BYTE (buf), |
d6abb4c7 | 3363 | end->bytepos)); |
177c0ea7 | 3364 | |
d6abb4c7 MB |
3365 | buf->clip_changed = 1; /* Remember that the narrowing changed. */ |
3366 | } | |
3628596a DA |
3367 | /* These aren't needed anymore, so don't wait for GC. */ |
3368 | free_marker (XCAR (data)); | |
3369 | free_marker (XCDR (data)); | |
3370 | free_cons (XCONS (data)); | |
d6abb4c7 MB |
3371 | } |
3372 | else | |
3373 | /* A buffer, which means that there was no old restriction. */ | |
3374 | { | |
63884563 RS |
3375 | if (buf /* Verify marker still points to a buffer. */ |
3376 | && (BUF_BEGV (buf) != BUF_BEG (buf) || BUF_ZV (buf) != BUF_Z (buf))) | |
d6abb4c7 MB |
3377 | /* The buffer has been narrowed, get rid of the narrowing. */ |
3378 | { | |
63884563 RS |
3379 | SET_BUF_BEGV_BOTH (buf, BUF_BEG (buf), BUF_BEG_BYTE (buf)); |
3380 | SET_BUF_ZV_BOTH (buf, BUF_Z (buf), BUF_Z_BYTE (buf)); | |
35692fe0 | 3381 | |
d6abb4c7 MB |
3382 | buf->clip_changed = 1; /* Remember that the narrowing changed. */ |
3383 | } | |
3384 | } | |
35692fe0 | 3385 | |
aca092ac SM |
3386 | /* Changing the buffer bounds invalidates any recorded current column. */ |
3387 | invalidate_current_column (); | |
3388 | ||
d528b1ce SM |
3389 | if (cur) |
3390 | set_buffer_internal (cur); | |
3391 | ||
35692fe0 JB |
3392 | return Qnil; |
3393 | } | |
3394 | ||
3395 | DEFUN ("save-restriction", Fsave_restriction, Ssave_restriction, 0, UNEVALLED, 0, | |
7ee72033 | 3396 | doc: /* Execute BODY, saving and restoring current buffer's restrictions. |
a1f17501 | 3397 | The buffer's restrictions make parts of the beginning and end invisible. |
9671c13a | 3398 | \(They are set up with `narrow-to-region' and eliminated with `widen'.) |
a1f17501 PJ |
3399 | This special form, `save-restriction', saves the current buffer's restrictions |
3400 | when it is entered, and restores them when it is exited. | |
3401 | So any `narrow-to-region' within BODY lasts only until the end of the form. | |
3402 | The old restrictions settings are restored | |
3403 | even in case of abnormal exit (throw or error). | |
3404 | ||
3405 | The value returned is the value of the last form in BODY. | |
3406 | ||
3407 | Note: if you are using both `save-excursion' and `save-restriction', | |
3408 | use `save-excursion' outermost: | |
33c2d29f MB |
3409 | (save-excursion (save-restriction ...)) |
3410 | ||
3411 | usage: (save-restriction &rest BODY) */) | |
5842a27b | 3412 | (Lisp_Object body) |
35692fe0 JB |
3413 | { |
3414 | register Lisp_Object val; | |
d311d28c | 3415 | ptrdiff_t count = SPECPDL_INDEX (); |
35692fe0 JB |
3416 | |
3417 | record_unwind_protect (save_restriction_restore, save_restriction_save ()); | |
3418 | val = Fprogn (body); | |
3419 | return unbind_to (count, val); | |
3420 | } | |
3421 | \f | |
0ae83348 | 3422 | /* Buffer for the most recent text displayed by Fmessage_box. */ |
671fbc4d KH |
3423 | static char *message_text; |
3424 | ||
3425 | /* Allocated length of that buffer. */ | |
c9f8d652 | 3426 | static ptrdiff_t message_length; |
671fbc4d | 3427 | |
a7ca3326 | 3428 | DEFUN ("message", Fmessage, Smessage, 1, MANY, 0, |
db18da59 | 3429 | doc: /* Display a message at the bottom of the screen. |
d56f2e49 GM |
3430 | The message also goes into the `*Messages*' buffer, if `message-log-max' |
3431 | is non-nil. (In keyboard macros, that's all it does.) | |
db18da59 | 3432 | Return the message. |
281c1721 | 3433 | |
a1f17501 PJ |
3434 | The first argument is a format control string, and the rest are data |
3435 | to be formatted under control of the string. See `format' for details. | |
3436 | ||
7bd5bcfb KS |
3437 | Note: Use (message "%s" VALUE) to print the value of expressions and |
3438 | variables to avoid accidentally interpreting `%' as format specifiers. | |
3439 | ||
fa056b08 KS |
3440 | If the first argument is nil or the empty string, the function clears |
3441 | any existing message; this lets the minibuffer contents show. See | |
3442 | also `current-message'. | |
4bfbe194 | 3443 | |
867b9600 | 3444 | usage: (message FORMAT-STRING &rest ARGS) */) |
f66c7cf8 | 3445 | (ptrdiff_t nargs, Lisp_Object *args) |
35692fe0 | 3446 | { |
6076e561 RS |
3447 | if (NILP (args[0]) |
3448 | || (STRINGP (args[0]) | |
3449 | && SBYTES (args[0]) == 0)) | |
f0250249 JB |
3450 | { |
3451 | message (0); | |
674a954a | 3452 | return args[0]; |
f0250249 | 3453 | } |
ccdac5be JB |
3454 | else |
3455 | { | |
3456 | register Lisp_Object val; | |
304f1f12 | 3457 | val = Fformat (nargs, args); |
d5db4077 | 3458 | message3 (val, SBYTES (val), STRING_MULTIBYTE (val)); |
ccdac5be JB |
3459 | return val; |
3460 | } | |
35692fe0 JB |
3461 | } |
3462 | ||
cacc3e2c | 3463 | DEFUN ("message-box", Fmessage_box, Smessage_box, 1, MANY, 0, |
7ee72033 | 3464 | doc: /* Display a message, in a dialog box if possible. |
a1f17501 PJ |
3465 | If a dialog box is not available, use the echo area. |
3466 | The first argument is a format control string, and the rest are data | |
3467 | to be formatted under control of the string. See `format' for details. | |
3468 | ||
fa056b08 KS |
3469 | If the first argument is nil or the empty string, clear any existing |
3470 | message; let the minibuffer contents show. | |
4bfbe194 | 3471 | |
867b9600 | 3472 | usage: (message-box FORMAT-STRING &rest ARGS) */) |
f66c7cf8 | 3473 | (ptrdiff_t nargs, Lisp_Object *args) |
cacc3e2c RS |
3474 | { |
3475 | if (NILP (args[0])) | |
3476 | { | |
3477 | message (0); | |
3478 | return Qnil; | |
3479 | } | |
3480 | else | |
3481 | { | |
3482 | register Lisp_Object val; | |
3483 | val = Fformat (nargs, args); | |
f8250f01 | 3484 | #ifdef HAVE_MENUS |
0ae83348 EZ |
3485 | /* The MS-DOS frames support popup menus even though they are |
3486 | not FRAME_WINDOW_P. */ | |
3487 | if (FRAME_WINDOW_P (XFRAME (selected_frame)) | |
3488 | || FRAME_MSDOS_P (XFRAME (selected_frame))) | |
cacc3e2c | 3489 | { |
f838ed7b | 3490 | Lisp_Object pane, menu; |
cacc3e2c RS |
3491 | struct gcpro gcpro1; |
3492 | pane = Fcons (Fcons (build_string ("OK"), Qt), Qnil); | |
3493 | GCPRO1 (pane); | |
3494 | menu = Fcons (val, pane); | |
f838ed7b | 3495 | Fx_popup_dialog (Qt, menu, Qt); |
cacc3e2c RS |
3496 | UNGCPRO; |
3497 | return val; | |
3498 | } | |
0ae83348 | 3499 | #endif /* HAVE_MENUS */ |
cacc3e2c | 3500 | /* Copy the data so that it won't move when we GC. */ |
d5db4077 | 3501 | if (SBYTES (val) > message_length) |
cacc3e2c | 3502 | { |
38182d90 PE |
3503 | ptrdiff_t new_length = SBYTES (val) + 80; |
3504 | message_text = xrealloc (message_text, new_length); | |
3505 | message_length = new_length; | |
cacc3e2c | 3506 | } |
72af86bd | 3507 | memcpy (message_text, SDATA (val), SBYTES (val)); |
d5db4077 | 3508 | message2 (message_text, SBYTES (val), |
d13a8480 | 3509 | STRING_MULTIBYTE (val)); |
cacc3e2c | 3510 | return val; |
cacc3e2c RS |
3511 | } |
3512 | } | |
f8250f01 | 3513 | |
cacc3e2c | 3514 | DEFUN ("message-or-box", Fmessage_or_box, Smessage_or_box, 1, MANY, 0, |
7ee72033 | 3515 | doc: /* Display a message in a dialog box or in the echo area. |
a1f17501 PJ |
3516 | If this command was invoked with the mouse, use a dialog box if |
3517 | `use-dialog-box' is non-nil. | |
3518 | Otherwise, use the echo area. | |
3519 | The first argument is a format control string, and the rest are data | |
3520 | to be formatted under control of the string. See `format' for details. | |
3521 | ||
fa056b08 KS |
3522 | If the first argument is nil or the empty string, clear any existing |
3523 | message; let the minibuffer contents show. | |
4bfbe194 | 3524 | |
867b9600 | 3525 | usage: (message-or-box FORMAT-STRING &rest ARGS) */) |
f66c7cf8 | 3526 | (ptrdiff_t nargs, Lisp_Object *args) |
cacc3e2c | 3527 | { |
f8250f01 | 3528 | #ifdef HAVE_MENUS |
5920df33 | 3529 | if ((NILP (last_nonmenu_event) || CONSP (last_nonmenu_event)) |
c01fbf95 | 3530 | && use_dialog_box) |
0a56ee6b | 3531 | return Fmessage_box (nargs, args); |
cacc3e2c RS |
3532 | #endif |
3533 | return Fmessage (nargs, args); | |
3534 | } | |
3535 | ||
a7ca3326 | 3536 | DEFUN ("current-message", Fcurrent_message, Scurrent_message, 0, 0, 0, |
7ee72033 | 3537 | doc: /* Return the string currently displayed in the echo area, or nil if none. */) |
5842a27b | 3538 | (void) |
b14dda8a | 3539 | { |
0634a78e | 3540 | return current_message (); |
b14dda8a RS |
3541 | } |
3542 | ||
2d9811c4 | 3543 | |
d2936d21 | 3544 | DEFUN ("propertize", Fpropertize, Spropertize, 1, MANY, 0, |
7ee72033 | 3545 | doc: /* Return a copy of STRING with text properties added. |
a1f17501 PJ |
3546 | First argument is the string to copy. |
3547 | Remaining arguments form a sequence of PROPERTY VALUE pairs for text | |
4bfbe194 MB |
3548 | properties to add to the result. |
3549 | usage: (propertize STRING &rest PROPERTIES) */) | |
f66c7cf8 | 3550 | (ptrdiff_t nargs, Lisp_Object *args) |
2d9811c4 GM |
3551 | { |
3552 | Lisp_Object properties, string; | |
3553 | struct gcpro gcpro1, gcpro2; | |
f66c7cf8 | 3554 | ptrdiff_t i; |
2d9811c4 GM |
3555 | |
3556 | /* Number of args must be odd. */ | |
c5101a77 | 3557 | if ((nargs & 1) == 0) |
2d9811c4 GM |
3558 | error ("Wrong number of arguments"); |
3559 | ||
3560 | properties = string = Qnil; | |
3561 | GCPRO2 (properties, string); | |
34a7a267 | 3562 | |
2d9811c4 | 3563 | /* First argument must be a string. */ |
b7826503 | 3564 | CHECK_STRING (args[0]); |
2d9811c4 GM |
3565 | string = Fcopy_sequence (args[0]); |
3566 | ||
3567 | for (i = 1; i < nargs; i += 2) | |
9b7a2369 | 3568 | properties = Fcons (args[i], Fcons (args[i + 1], properties)); |
2d9811c4 GM |
3569 | |
3570 | Fadd_text_properties (make_number (0), | |
d5db4077 | 3571 | make_number (SCHARS (string)), |
2d9811c4 GM |
3572 | properties, string); |
3573 | RETURN_UNGCPRO (string); | |
3574 | } | |
3575 | ||
a7ca3326 | 3576 | DEFUN ("format", Fformat, Sformat, 1, MANY, 0, |
867b9600 JL |
3577 | doc: /* Format a string out of a format-string and arguments. |
3578 | The first argument is a format control string. | |
a1f17501 | 3579 | The other arguments are substituted into it to make the result, a string. |
575b782f CY |
3580 | |
3581 | The format control string may contain %-sequences meaning to substitute | |
3582 | the next available argument: | |
3583 | ||
a1f17501 PJ |
3584 | %s means print a string argument. Actually, prints any object, with `princ'. |
3585 | %d means print as number in decimal (%o octal, %x hex). | |
3586 | %X is like %x, but uses upper case. | |
3587 | %e means print a number in exponential notation. | |
3588 | %f means print a number in decimal-point notation. | |
3589 | %g means print a number in exponential notation | |
3590 | or decimal-point notation, whichever uses fewer characters. | |
3591 | %c means print a number as a single character. | |
3592 | %S means print any object as an s-expression (using `prin1'). | |
575b782f CY |
3593 | |
3594 | The argument used for %d, %o, %x, %e, %f, %g or %c must be a number. | |
4bfbe194 MB |
3595 | Use %% to put a single % into the output. |
3596 | ||
575b782f CY |
3597 | A %-sequence may contain optional flag, width, and precision |
3598 | specifiers, as follows: | |
3599 | ||
3600 | %<flags><width><precision>character | |
3601 | ||
3602 | where flags is [+ #-0]+, width is [0-9]+, and precision is .[0-9]+ | |
3603 | ||
3604 | The + flag character inserts a + before any positive number, while a | |
3605 | space inserts a space before any positive number; these flags only | |
3606 | affect %d, %e, %f, and %g sequences, and the + flag takes precedence. | |
55802e4a CY |
3607 | The - and 0 flags affect the width specifier, as described below. |
3608 | ||
575b782f | 3609 | The # flag means to use an alternate display form for %o, %x, %X, %e, |
55802e4a CY |
3610 | %f, and %g sequences: for %o, it ensures that the result begins with |
3611 | \"0\"; for %x and %X, it prefixes the result with \"0x\" or \"0X\"; | |
3612 | for %e, %f, and %g, it causes a decimal point to be included even if | |
3613 | the precision is zero. | |
575b782f CY |
3614 | |
3615 | The width specifier supplies a lower limit for the length of the | |
3616 | printed representation. The padding, if any, normally goes on the | |
3617 | left, but it goes on the right if the - flag is present. The padding | |
3618 | character is normally a space, but it is 0 if the 0 flag is present. | |
a9ab721e LMI |
3619 | The 0 flag is ignored if the - flag is present, or the format sequence |
3620 | is something other than %d, %e, %f, and %g. | |
575b782f CY |
3621 | |
3622 | For %e, %f, and %g sequences, the number after the "." in the | |
3623 | precision specifier says how many decimal places to show; if zero, the | |
3624 | decimal point itself is omitted. For %s and %S, the precision | |
3625 | specifier truncates the string to the given width. | |
f555f8cf | 3626 | |
4bfbe194 | 3627 | usage: (format STRING &rest OBJECTS) */) |
f66c7cf8 | 3628 | (ptrdiff_t nargs, Lisp_Object *args) |
35692fe0 | 3629 | { |
f66c7cf8 | 3630 | ptrdiff_t n; /* The number of the next arg to substitute */ |
37910ab2 PE |
3631 | char initial_buffer[4000]; |
3632 | char *buf = initial_buffer; | |
d311d28c PE |
3633 | ptrdiff_t bufsize = sizeof initial_buffer; |
3634 | ptrdiff_t max_bufsize = STRING_BYTES_BOUND + 1; | |
37910ab2 PE |
3635 | char *p; |
3636 | Lisp_Object buf_save_value IF_LINT (= {0}); | |
fce31d69 | 3637 | char *format, *end, *format_start; |
d311d28c | 3638 | ptrdiff_t formatlen, nchars; |
fce31d69 PE |
3639 | /* True if the format is multibyte. */ |
3640 | bool multibyte_format = 0; | |
3641 | /* True if the output should be a multibyte string, | |
1f24f4fd | 3642 | which is true if any of the inputs is one. */ |
fce31d69 | 3643 | bool multibyte = 0; |
8f2917e4 KH |
3644 | /* When we make a multibyte string, we must pay attention to the |
3645 | byte combining problem, i.e., a byte may be combined with a | |
3b59c351 | 3646 | multibyte character of the previous string. This flag tells if we |
8f2917e4 | 3647 | must consider such a situation or not. */ |
a08d4ba7 | 3648 | bool maybe_combine_byte; |
8d6179dc | 3649 | Lisp_Object val; |
a08d4ba7 | 3650 | bool arg_intervals = 0; |
7e2c051b | 3651 | USE_SAFE_ALLOCA; |
d147ee84 RS |
3652 | |
3653 | /* discarded[I] is 1 if byte I of the format | |
3654 | string was not copied into the output. | |
3655 | It is 2 if byte I was not the first byte of its character. */ | |
37910ab2 | 3656 | char *discarded; |
d147ee84 RS |
3657 | |
3658 | /* Each element records, for one argument, | |
3659 | the start and end bytepos in the output string, | |
37910ab2 | 3660 | whether the argument has been converted to string (e.g., due to "%S"), |
d147ee84 RS |
3661 | and whether the argument is a string with intervals. |
3662 | info[0] is unused. Unused elements have -1 for start. */ | |
5e6d5493 GM |
3663 | struct info |
3664 | { | |
d311d28c | 3665 | ptrdiff_t start, end; |
a08d4ba7 PE |
3666 | unsigned converted_to_string : 1; |
3667 | unsigned intervals : 1; | |
5e6d5493 | 3668 | } *info = 0; |
1f24f4fd | 3669 | |
35692fe0 JB |
3670 | /* It should not be necessary to GCPRO ARGS, because |
3671 | the caller in the interpreter should take care of that. */ | |
3672 | ||
37910ab2 PE |
3673 | CHECK_STRING (args[0]); |
3674 | format_start = SSDATA (args[0]); | |
3675 | formatlen = SBYTES (args[0]); | |
3676 | ||
3677 | /* Allocate the info and discarded tables. */ | |
3678 | { | |
f66c7cf8 | 3679 | ptrdiff_t i; |
37910ab2 | 3680 | if ((SIZE_MAX - formatlen) / sizeof (struct info) <= nargs) |
531b0165 | 3681 | memory_full (SIZE_MAX); |
98c6f1e3 | 3682 | info = SAFE_ALLOCA ((nargs + 1) * sizeof *info + formatlen); |
37910ab2 PE |
3683 | discarded = (char *) &info[nargs + 1]; |
3684 | for (i = 0; i < nargs + 1; i++) | |
3685 | { | |
3686 | info[i].start = -1; | |
3687 | info[i].intervals = info[i].converted_to_string = 0; | |
3688 | } | |
3689 | memset (discarded, 0, formatlen); | |
3690 | } | |
3691 | ||
e781c49e RS |
3692 | /* Try to determine whether the result should be multibyte. |
3693 | This is not always right; sometimes the result needs to be multibyte | |
3694 | because of an object that we will pass through prin1, | |
3695 | and in that case, we won't know it here. */ | |
37910ab2 PE |
3696 | multibyte_format = STRING_MULTIBYTE (args[0]); |
3697 | multibyte = multibyte_format; | |
3698 | for (n = 1; !multibyte && n < nargs; n++) | |
3699 | if (STRINGP (args[n]) && STRING_MULTIBYTE (args[n])) | |
3700 | multibyte = 1; | |
67965a98 | 3701 | |
e781c49e | 3702 | /* If we start out planning a unibyte result, |
37910ab2 | 3703 | then discover it has to be multibyte, we jump back to retry. */ |
e781c49e RS |
3704 | retry: |
3705 | ||
37910ab2 PE |
3706 | p = buf; |
3707 | nchars = 0; | |
3708 | n = 0; | |
d147ee84 | 3709 | |
37910ab2 PE |
3710 | /* Scan the format and store result in BUF. */ |
3711 | format = format_start; | |
3712 | end = format + formatlen; | |
3713 | maybe_combine_byte = 0; | |
35692fe0 | 3714 | |
35692fe0 | 3715 | while (format != end) |
37910ab2 PE |
3716 | { |
3717 | /* The values of N and FORMAT when the loop body is entered. */ | |
f66c7cf8 | 3718 | ptrdiff_t n0 = n; |
37910ab2 | 3719 | char *format0 = format; |
35692fe0 | 3720 | |
37910ab2 | 3721 | /* Bytes needed to represent the output of this conversion. */ |
d311d28c | 3722 | ptrdiff_t convbytes; |
537dfb13 | 3723 | |
37910ab2 PE |
3724 | if (*format == '%') |
3725 | { | |
3726 | /* General format specifications look like | |
a432bfe5 | 3727 | |
37910ab2 | 3728 | '%' [flags] [field-width] [precision] format |
a432bfe5 | 3729 | |
37910ab2 | 3730 | where |
a432bfe5 | 3731 | |
37910ab2 PE |
3732 | flags ::= [-+0# ]+ |
3733 | field-width ::= [0-9]+ | |
3734 | precision ::= '.' [0-9]* | |
a432bfe5 | 3735 | |
37910ab2 PE |
3736 | If a field-width is specified, it specifies to which width |
3737 | the output should be padded with blanks, if the output | |
3738 | string is shorter than field-width. | |
a432bfe5 | 3739 | |
37910ab2 PE |
3740 | If precision is specified, it specifies the number of |
3741 | digits to print after the '.' for floats, or the max. | |
3742 | number of chars to print from a string. */ | |
a432bfe5 | 3743 | |
a08d4ba7 PE |
3744 | bool minus_flag = 0; |
3745 | bool plus_flag = 0; | |
3746 | bool space_flag = 0; | |
3747 | bool sharp_flag = 0; | |
3748 | bool zero_flag = 0; | |
d311d28c | 3749 | ptrdiff_t field_width; |
a08d4ba7 | 3750 | bool precision_given; |
37910ab2 PE |
3751 | uintmax_t precision = UINTMAX_MAX; |
3752 | char *num_end; | |
3753 | char conversion; | |
a432bfe5 | 3754 | |
37910ab2 PE |
3755 | while (1) |
3756 | { | |
3757 | switch (*++format) | |
3758 | { | |
3759 | case '-': minus_flag = 1; continue; | |
3760 | case '+': plus_flag = 1; continue; | |
3761 | case ' ': space_flag = 1; continue; | |
3762 | case '#': sharp_flag = 1; continue; | |
3763 | case '0': zero_flag = 1; continue; | |
3764 | } | |
3765 | break; | |
3766 | } | |
35692fe0 | 3767 | |
37910ab2 PE |
3768 | /* Ignore flags when sprintf ignores them. */ |
3769 | space_flag &= ~ plus_flag; | |
3770 | zero_flag &= ~ minus_flag; | |
1f24f4fd | 3771 | |
35692fe0 | 3772 | { |
37910ab2 PE |
3773 | uintmax_t w = strtoumax (format, &num_end, 10); |
3774 | if (max_bufsize <= w) | |
3775 | string_overflow (); | |
3776 | field_width = w; | |
35692fe0 | 3777 | } |
37910ab2 PE |
3778 | precision_given = *num_end == '.'; |
3779 | if (precision_given) | |
3780 | precision = strtoumax (num_end + 1, &num_end, 10); | |
3781 | format = num_end; | |
3782 | ||
3783 | if (format == end) | |
3784 | error ("Format string ends in middle of format specifier"); | |
3785 | ||
3786 | memset (&discarded[format0 - format_start], 1, format - format0); | |
3787 | conversion = *format; | |
3788 | if (conversion == '%') | |
7812ba2d | 3789 | goto copy_char; |
d147ee84 | 3790 | discarded[format - format_start] = 1; |
1f24f4fd | 3791 | format++; |
fb893977 | 3792 | |
37910ab2 PE |
3793 | ++n; |
3794 | if (! (n < nargs)) | |
3795 | error ("Not enough arguments for format string"); | |
3796 | ||
3797 | /* For 'S', prin1 the argument, and then treat like 's'. | |
3798 | For 's', princ any argument that is not a string or | |
3799 | symbol. But don't do this conversion twice, which might | |
3800 | happen after retrying. */ | |
3801 | if ((conversion == 'S' | |
3802 | || (conversion == 's' | |
3803 | && ! STRINGP (args[n]) && ! SYMBOLP (args[n])))) | |
f555f8cf | 3804 | { |
37910ab2 | 3805 | if (! info[n].converted_to_string) |
f555f8cf | 3806 | { |
37910ab2 PE |
3807 | Lisp_Object noescape = conversion == 'S' ? Qnil : Qt; |
3808 | args[n] = Fprin1_to_string (args[n], noescape); | |
3809 | info[n].converted_to_string = 1; | |
3810 | if (STRING_MULTIBYTE (args[n]) && ! multibyte) | |
3811 | { | |
3812 | multibyte = 1; | |
3813 | goto retry; | |
3814 | } | |
f555f8cf | 3815 | } |
37910ab2 | 3816 | conversion = 's'; |
f555f8cf | 3817 | } |
37910ab2 PE |
3818 | else if (conversion == 'c') |
3819 | { | |
3820 | if (FLOATP (args[n])) | |
3821 | { | |
3822 | double d = XFLOAT_DATA (args[n]); | |
3823 | args[n] = make_number (FIXNUM_OVERFLOW_P (d) ? -1 : d); | |
3824 | } | |
f555f8cf | 3825 | |
37910ab2 PE |
3826 | if (INTEGERP (args[n]) && ! ASCII_CHAR_P (XINT (args[n]))) |
3827 | { | |
3828 | if (!multibyte) | |
3829 | { | |
3830 | multibyte = 1; | |
3831 | goto retry; | |
3832 | } | |
3833 | args[n] = Fchar_to_string (args[n]); | |
3834 | info[n].converted_to_string = 1; | |
3835 | } | |
f555f8cf | 3836 | |
37910ab2 PE |
3837 | if (info[n].converted_to_string) |
3838 | conversion = 's'; | |
3839 | zero_flag = 0; | |
d147ee84 | 3840 | } |
35692fe0 | 3841 | |
37910ab2 | 3842 | if (SYMBOLP (args[n])) |
1f24f4fd | 3843 | { |
37910ab2 PE |
3844 | args[n] = SYMBOL_NAME (args[n]); |
3845 | if (STRING_MULTIBYTE (args[n]) && ! multibyte) | |
3846 | { | |
3847 | multibyte = 1; | |
3848 | goto retry; | |
3849 | } | |
1f24f4fd RS |
3850 | } |
3851 | ||
37910ab2 | 3852 | if (conversion == 's') |
1f24f4fd | 3853 | { |
ac42d7b9 KG |
3854 | /* handle case (precision[n] >= 0) */ |
3855 | ||
d311d28c PE |
3856 | ptrdiff_t width, padding, nbytes; |
3857 | ptrdiff_t nchars_string; | |
ac42d7b9 | 3858 | |
d311d28c PE |
3859 | ptrdiff_t prec = -1; |
3860 | if (precision_given && precision <= TYPE_MAXIMUM (ptrdiff_t)) | |
37910ab2 PE |
3861 | prec = precision; |
3862 | ||
ac42d7b9 KG |
3863 | /* lisp_string_width ignores a precision of 0, but GNU |
3864 | libc functions print 0 characters when the precision | |
3865 | is 0. Imitate libc behavior here. Changing | |
3866 | lisp_string_width is the right thing, and will be | |
3867 | done, but meanwhile we work with it. */ | |
3868 | ||
37910ab2 | 3869 | if (prec == 0) |
ac42d7b9 | 3870 | width = nchars_string = nbytes = 0; |
ac42d7b9 | 3871 | else |
37910ab2 | 3872 | { |
d311d28c | 3873 | ptrdiff_t nch, nby; |
37910ab2 PE |
3874 | width = lisp_string_width (args[n], prec, &nch, &nby); |
3875 | if (prec < 0) | |
3876 | { | |
3877 | nchars_string = SCHARS (args[n]); | |
3878 | nbytes = SBYTES (args[n]); | |
3879 | } | |
3880 | else | |
3881 | { | |
3882 | nchars_string = nch; | |
3883 | nbytes = nby; | |
3884 | } | |
ac42d7b9 | 3885 | } |
25c9e7fb | 3886 | |
37910ab2 PE |
3887 | convbytes = nbytes; |
3888 | if (convbytes && multibyte && ! STRING_MULTIBYTE (args[n])) | |
3889 | convbytes = count_size_as_multibyte (SDATA (args[n]), nbytes); | |
1f24f4fd | 3890 | |
37910ab2 | 3891 | padding = width < field_width ? field_width - width : 0; |
ac42d7b9 | 3892 | |
37910ab2 PE |
3893 | if (max_bufsize - padding <= convbytes) |
3894 | string_overflow (); | |
3895 | convbytes += padding; | |
3896 | if (convbytes <= buf + bufsize - p) | |
3897 | { | |
3898 | if (! minus_flag) | |
3899 | { | |
3900 | memset (p, ' ', padding); | |
3901 | p += padding; | |
3902 | nchars += padding; | |
3903 | } | |
ac42d7b9 | 3904 | |
37910ab2 PE |
3905 | if (p > buf |
3906 | && multibyte | |
3907 | && !ASCII_BYTE_P (*((unsigned char *) p - 1)) | |
3908 | && STRING_MULTIBYTE (args[n]) | |
3909 | && !CHAR_HEAD_P (SREF (args[n], 0))) | |
3910 | maybe_combine_byte = 1; | |
1f24f4fd | 3911 | |
37910ab2 PE |
3912 | p += copy_text (SDATA (args[n]), (unsigned char *) p, |
3913 | nbytes, | |
3914 | STRING_MULTIBYTE (args[n]), multibyte); | |
8f2c9ed8 | 3915 | |
37910ab2 PE |
3916 | info[n].start = nchars; |
3917 | nchars += nchars_string; | |
3918 | info[n].end = nchars; | |
3919 | ||
3920 | if (minus_flag) | |
3921 | { | |
3922 | memset (p, ' ', padding); | |
3923 | p += padding; | |
3924 | nchars += padding; | |
3925 | } | |
5e6d5493 | 3926 | |
37910ab2 PE |
3927 | /* If this argument has text properties, record where |
3928 | in the result string it appears. */ | |
0c94c8d6 | 3929 | if (string_intervals (args[n])) |
37910ab2 PE |
3930 | info[n].intervals = arg_intervals = 1; |
3931 | ||
3932 | continue; | |
3933 | } | |
1f24f4fd | 3934 | } |
37910ab2 PE |
3935 | else if (! (conversion == 'c' || conversion == 'd' |
3936 | || conversion == 'e' || conversion == 'f' | |
3937 | || conversion == 'g' || conversion == 'i' | |
3938 | || conversion == 'o' || conversion == 'x' | |
3939 | || conversion == 'X')) | |
3940 | error ("Invalid format operation %%%c", | |
3941 | STRING_CHAR ((unsigned char *) format - 1)); | |
3942 | else if (! (INTEGERP (args[n]) || FLOATP (args[n]))) | |
3943 | error ("Format specifier doesn't match argument type"); | |
3944 | else | |
1f24f4fd | 3945 | { |
37910ab2 PE |
3946 | enum |
3947 | { | |
3948 | /* Maximum precision for a %f conversion such that the | |
333f9019 | 3949 | trailing output digit might be nonzero. Any precision |
37910ab2 PE |
3950 | larger than this will not yield useful information. */ |
3951 | USEFUL_PRECISION_MAX = | |
3952 | ((1 - DBL_MIN_EXP) | |
3953 | * (FLT_RADIX == 2 || FLT_RADIX == 10 ? 1 | |
3954 | : FLT_RADIX == 16 ? 4 | |
3955 | : -1)), | |
3956 | ||
3957 | /* Maximum number of bytes generated by any format, if | |
81f7c12e | 3958 | precision is no more than USEFUL_PRECISION_MAX. |
37910ab2 PE |
3959 | On all practical hosts, %f is the worst case. */ |
3960 | SPRINTF_BUFSIZE = | |
a81d11a3 PE |
3961 | sizeof "-." + (DBL_MAX_10_EXP + 1) + USEFUL_PRECISION_MAX, |
3962 | ||
3963 | /* Length of pM (that is, of pMd without the | |
3964 | trailing "d"). */ | |
3965 | pMlen = sizeof pMd - 2 | |
37910ab2 PE |
3966 | }; |
3967 | verify (0 < USEFUL_PRECISION_MAX); | |
3968 | ||
3969 | int prec; | |
d311d28c | 3970 | ptrdiff_t padding, sprintf_bytes; |
37910ab2 PE |
3971 | uintmax_t excess_precision, numwidth; |
3972 | uintmax_t leading_zeros = 0, trailing_zeros = 0; | |
3973 | ||
3974 | char sprintf_buf[SPRINTF_BUFSIZE]; | |
3975 | ||
3976 | /* Copy of conversion specification, modified somewhat. | |
3977 | At most three flags F can be specified at once. */ | |
a81d11a3 | 3978 | char convspec[sizeof "%FFF.*d" + pMlen]; |
37910ab2 PE |
3979 | |
3980 | /* Avoid undefined behavior in underlying sprintf. */ | |
3981 | if (conversion == 'd' || conversion == 'i') | |
3982 | sharp_flag = 0; | |
3983 | ||
3984 | /* Create the copy of the conversion specification, with | |
3985 | any width and precision removed, with ".*" inserted, | |
a81d11a3 | 3986 | and with pM inserted for integer formats. */ |
37910ab2 PE |
3987 | { |
3988 | char *f = convspec; | |
3989 | *f++ = '%'; | |
3990 | *f = '-'; f += minus_flag; | |
3991 | *f = '+'; f += plus_flag; | |
3992 | *f = ' '; f += space_flag; | |
3993 | *f = '#'; f += sharp_flag; | |
3994 | *f = '0'; f += zero_flag; | |
3995 | *f++ = '.'; | |
3996 | *f++ = '*'; | |
3997 | if (conversion == 'd' || conversion == 'i' | |
3998 | || conversion == 'o' || conversion == 'x' | |
3999 | || conversion == 'X') | |
4000 | { | |
a81d11a3 PE |
4001 | memcpy (f, pMd, pMlen); |
4002 | f += pMlen; | |
37910ab2 PE |
4003 | zero_flag &= ~ precision_given; |
4004 | } | |
4005 | *f++ = conversion; | |
4006 | *f = '\0'; | |
4007 | } | |
1f24f4fd | 4008 | |
37910ab2 PE |
4009 | prec = -1; |
4010 | if (precision_given) | |
4011 | prec = min (precision, USEFUL_PRECISION_MAX); | |
4012 | ||
4013 | /* Use sprintf to format this number into sprintf_buf. Omit | |
4014 | padding and excess precision, though, because sprintf limits | |
4015 | output length to INT_MAX. | |
4016 | ||
4017 | There are four types of conversion: double, unsigned | |
4018 | char (passed as int), wide signed int, and wide | |
4019 | unsigned int. Treat them separately because the | |
4020 | sprintf ABI is sensitive to which type is passed. Be | |
4021 | careful about integer overflow, NaNs, infinities, and | |
4022 | conversions; for example, the min and max macros are | |
4023 | not suitable here. */ | |
4024 | if (conversion == 'e' || conversion == 'f' || conversion == 'g') | |
4025 | { | |
4026 | double x = (INTEGERP (args[n]) | |
4027 | ? XINT (args[n]) | |
4028 | : XFLOAT_DATA (args[n])); | |
4029 | sprintf_bytes = sprintf (sprintf_buf, convspec, prec, x); | |
4030 | } | |
4031 | else if (conversion == 'c') | |
4032 | { | |
4033 | /* Don't use sprintf here, as it might mishandle prec. */ | |
4034 | sprintf_buf[0] = XINT (args[n]); | |
4035 | sprintf_bytes = prec != 0; | |
4036 | } | |
4037 | else if (conversion == 'd') | |
4038 | { | |
4039 | /* For float, maybe we should use "%1.0f" | |
4040 | instead so it also works for values outside | |
4041 | the integer range. */ | |
a81d11a3 | 4042 | printmax_t x; |
37910ab2 PE |
4043 | if (INTEGERP (args[n])) |
4044 | x = XINT (args[n]); | |
4045 | else | |
4046 | { | |
4047 | double d = XFLOAT_DATA (args[n]); | |
4048 | if (d < 0) | |
4049 | { | |
a81d11a3 | 4050 | x = TYPE_MINIMUM (printmax_t); |
37910ab2 PE |
4051 | if (x < d) |
4052 | x = d; | |
4053 | } | |
4054 | else | |
4055 | { | |
a81d11a3 | 4056 | x = TYPE_MAXIMUM (printmax_t); |
37910ab2 PE |
4057 | if (d < x) |
4058 | x = d; | |
4059 | } | |
4060 | } | |
4061 | sprintf_bytes = sprintf (sprintf_buf, convspec, prec, x); | |
4062 | } | |
0f860bd7 | 4063 | else |
de92d4d4 | 4064 | { |
37910ab2 | 4065 | /* Don't sign-extend for octal or hex printing. */ |
a81d11a3 | 4066 | uprintmax_t x; |
37910ab2 PE |
4067 | if (INTEGERP (args[n])) |
4068 | x = XUINT (args[n]); | |
4069 | else | |
0f860bd7 | 4070 | { |
37910ab2 PE |
4071 | double d = XFLOAT_DATA (args[n]); |
4072 | if (d < 0) | |
4073 | x = 0; | |
4074 | else | |
4075 | { | |
a81d11a3 | 4076 | x = TYPE_MAXIMUM (uprintmax_t); |
37910ab2 PE |
4077 | if (d < x) |
4078 | x = d; | |
4079 | } | |
0f860bd7 | 4080 | } |
37910ab2 PE |
4081 | sprintf_bytes = sprintf (sprintf_buf, convspec, prec, x); |
4082 | } | |
0f860bd7 | 4083 | |
37910ab2 PE |
4084 | /* Now the length of the formatted item is known, except it omits |
4085 | padding and excess precision. Deal with excess precision | |
4086 | first. This happens only when the format specifies | |
4087 | ridiculously large precision. */ | |
4088 | excess_precision = precision - prec; | |
4089 | if (excess_precision) | |
4090 | { | |
4091 | if (conversion == 'e' || conversion == 'f' | |
4092 | || conversion == 'g') | |
ff6e6ac8 | 4093 | { |
37910ab2 PE |
4094 | if ((conversion == 'g' && ! sharp_flag) |
4095 | || ! ('0' <= sprintf_buf[sprintf_bytes - 1] | |
4096 | && sprintf_buf[sprintf_bytes - 1] <= '9')) | |
4097 | excess_precision = 0; | |
ff6e6ac8 | 4098 | else |
37910ab2 PE |
4099 | { |
4100 | if (conversion == 'g') | |
4101 | { | |
4102 | char *dot = strchr (sprintf_buf, '.'); | |
4103 | if (!dot) | |
4104 | excess_precision = 0; | |
4105 | } | |
4106 | } | |
4107 | trailing_zeros = excess_precision; | |
ff6e6ac8 | 4108 | } |
de92d4d4 | 4109 | else |
37910ab2 | 4110 | leading_zeros = excess_precision; |
de92d4d4 | 4111 | } |
1f24f4fd | 4112 | |
37910ab2 PE |
4113 | /* Compute the total bytes needed for this item, including |
4114 | excess precision and padding. */ | |
4115 | numwidth = sprintf_bytes + excess_precision; | |
4116 | padding = numwidth < field_width ? field_width - numwidth : 0; | |
4117 | if (max_bufsize - sprintf_bytes <= excess_precision | |
4118 | || max_bufsize - padding <= numwidth) | |
4119 | string_overflow (); | |
4120 | convbytes = numwidth + padding; | |
4121 | ||
4122 | if (convbytes <= buf + bufsize - p) | |
4123 | { | |
4124 | /* Copy the formatted item from sprintf_buf into buf, | |
4125 | inserting padding and excess-precision zeros. */ | |
4126 | ||
4127 | char *src = sprintf_buf; | |
4128 | char src0 = src[0]; | |
4129 | int exponent_bytes = 0; | |
a08d4ba7 | 4130 | bool signedp = src0 == '-' || src0 == '+' || src0 == ' '; |
37910ab2 | 4131 | int significand_bytes; |
172418ad AS |
4132 | if (zero_flag |
4133 | && ((src[signedp] >= '0' && src[signedp] <= '9') | |
4134 | || (src[signedp] >= 'a' && src[signedp] <= 'f') | |
4135 | || (src[signedp] >= 'A' && src[signedp] <= 'F'))) | |
37910ab2 PE |
4136 | { |
4137 | leading_zeros += padding; | |
4138 | padding = 0; | |
4139 | } | |
4140 | ||
4141 | if (excess_precision | |
4142 | && (conversion == 'e' || conversion == 'g')) | |
4143 | { | |
4144 | char *e = strchr (src, 'e'); | |
4145 | if (e) | |
4146 | exponent_bytes = src + sprintf_bytes - e; | |
4147 | } | |
4148 | ||
4149 | if (! minus_flag) | |
4150 | { | |
4151 | memset (p, ' ', padding); | |
4152 | p += padding; | |
4153 | nchars += padding; | |
4154 | } | |
4155 | ||
4156 | *p = src0; | |
4157 | src += signedp; | |
4158 | p += signedp; | |
4159 | memset (p, '0', leading_zeros); | |
4160 | p += leading_zeros; | |
4161 | significand_bytes = sprintf_bytes - signedp - exponent_bytes; | |
4162 | memcpy (p, src, significand_bytes); | |
4163 | p += significand_bytes; | |
4164 | src += significand_bytes; | |
4165 | memset (p, '0', trailing_zeros); | |
4166 | p += trailing_zeros; | |
4167 | memcpy (p, src, exponent_bytes); | |
4168 | p += exponent_bytes; | |
4169 | ||
4170 | info[n].start = nchars; | |
4171 | nchars += leading_zeros + sprintf_bytes + trailing_zeros; | |
4172 | info[n].end = nchars; | |
4173 | ||
4174 | if (minus_flag) | |
4175 | { | |
4176 | memset (p, ' ', padding); | |
4177 | p += padding; | |
4178 | nchars += padding; | |
4179 | } | |
4180 | ||
4181 | continue; | |
4182 | } | |
4183 | } | |
4184 | } | |
4185 | else | |
4186 | copy_char: | |
4187 | { | |
4188 | /* Copy a single character from format to buf. */ | |
4189 | ||
4190 | char *src = format; | |
4191 | unsigned char str[MAX_MULTIBYTE_LENGTH]; | |
4192 | ||
4193 | if (multibyte_format) | |
4194 | { | |
4195 | /* Copy a whole multibyte character. */ | |
8f2917e4 | 4196 | if (p > buf |
25aa5d64 | 4197 | && !ASCII_BYTE_P (*((unsigned char *) p - 1)) |
37910ab2 | 4198 | && !CHAR_HEAD_P (*format)) |
8f2917e4 | 4199 | maybe_combine_byte = 1; |
37910ab2 PE |
4200 | |
4201 | do | |
4202 | format++; | |
4203 | while (! CHAR_HEAD_P (*format)); | |
4204 | ||
a02719a3 | 4205 | convbytes = format - src; |
7812ba2d | 4206 | memset (&discarded[src + 1 - format_start], 2, convbytes - 1); |
37910ab2 PE |
4207 | } |
4208 | else | |
4209 | { | |
4210 | unsigned char uc = *format++; | |
4211 | if (! multibyte || ASCII_BYTE_P (uc)) | |
4212 | convbytes = 1; | |
9a599130 | 4213 | else |
37910ab2 PE |
4214 | { |
4215 | int c = BYTE8_TO_CHAR (uc); | |
4216 | convbytes = CHAR_STRING (c, str); | |
4217 | src = (char *) str; | |
4218 | } | |
1f24f4fd | 4219 | } |
d147ee84 | 4220 | |
37910ab2 | 4221 | if (convbytes <= buf + bufsize - p) |
d147ee84 | 4222 | { |
37910ab2 PE |
4223 | memcpy (p, src, convbytes); |
4224 | p += convbytes; | |
4225 | nchars++; | |
4226 | continue; | |
d147ee84 | 4227 | } |
7df74da6 | 4228 | } |
1f24f4fd | 4229 | |
37910ab2 PE |
4230 | /* There wasn't enough room to store this conversion or single |
4231 | character. CONVBYTES says how much room is needed. Allocate | |
4232 | enough room (and then some) and do it again. */ | |
4233 | { | |
c9f8d652 | 4234 | ptrdiff_t used = p - buf; |
37910ab2 PE |
4235 | |
4236 | if (max_bufsize - used < convbytes) | |
4237 | string_overflow (); | |
4238 | bufsize = used + convbytes; | |
4239 | bufsize = bufsize < max_bufsize / 2 ? bufsize * 2 : max_bufsize; | |
4240 | ||
4241 | if (buf == initial_buffer) | |
4242 | { | |
4243 | buf = xmalloc (bufsize); | |
4244 | sa_must_free = 1; | |
4245 | buf_save_value = make_save_value (buf, 0); | |
4246 | record_unwind_protect (safe_alloca_unwind, buf_save_value); | |
4247 | memcpy (buf, initial_buffer, used); | |
4248 | } | |
4249 | else | |
4250 | XSAVE_VALUE (buf_save_value)->pointer = buf = xrealloc (buf, bufsize); | |
4251 | ||
4252 | p = buf + used; | |
4253 | } | |
4254 | ||
4255 | format = format0; | |
4256 | n = n0; | |
1f24f4fd RS |
4257 | } |
4258 | ||
37910ab2 | 4259 | if (bufsize < p - buf) |
1088b922 | 4260 | emacs_abort (); |
a432bfe5 | 4261 | |
8f2917e4 | 4262 | if (maybe_combine_byte) |
e7f8264d | 4263 | nchars = multibyte_chars_in_text ((unsigned char *) buf, p - buf); |
5f75e666 | 4264 | val = make_specified_string (buf, nchars, p - buf, multibyte); |
8d6179dc | 4265 | |
1f24f4fd | 4266 | /* If we allocated BUF with malloc, free it too. */ |
e65837df | 4267 | SAFE_FREE (); |
35692fe0 | 4268 | |
5e6d5493 GM |
4269 | /* If the format string has text properties, or any of the string |
4270 | arguments has text properties, set up text properties of the | |
4271 | result string. */ | |
34a7a267 | 4272 | |
0c94c8d6 | 4273 | if (string_intervals (args[0]) || arg_intervals) |
5e6d5493 GM |
4274 | { |
4275 | Lisp_Object len, new_len, props; | |
4276 | struct gcpro gcpro1; | |
34a7a267 | 4277 | |
5e6d5493 | 4278 | /* Add text properties from the format string. */ |
d5db4077 | 4279 | len = make_number (SCHARS (args[0])); |
5e6d5493 GM |
4280 | props = text_property_list (args[0], make_number (0), len, Qnil); |
4281 | GCPRO1 (props); | |
34a7a267 | 4282 | |
5e6d5493 GM |
4283 | if (CONSP (props)) |
4284 | { | |
d311d28c PE |
4285 | ptrdiff_t bytepos = 0, position = 0, translated = 0; |
4286 | ptrdiff_t argn = 1; | |
d147ee84 RS |
4287 | Lisp_Object list; |
4288 | ||
4289 | /* Adjust the bounds of each text property | |
4290 | to the proper start and end in the output string. */ | |
d147ee84 | 4291 | |
15fad037 KS |
4292 | /* Put the positions in PROPS in increasing order, so that |
4293 | we can do (effectively) one scan through the position | |
4294 | space of the format string. */ | |
4295 | props = Fnreverse (props); | |
4296 | ||
4297 | /* BYTEPOS is the byte position in the format string, | |
d147ee84 RS |
4298 | POSITION is the untranslated char position in it, |
4299 | TRANSLATED is the translated char position in BUF, | |
4300 | and ARGN is the number of the next arg we will come to. */ | |
4301 | for (list = props; CONSP (list); list = XCDR (list)) | |
4302 | { | |
f3ce1df8 | 4303 | Lisp_Object item; |
d311d28c | 4304 | ptrdiff_t pos; |
d147ee84 RS |
4305 | |
4306 | item = XCAR (list); | |
4307 | ||
4308 | /* First adjust the property start position. */ | |
4309 | pos = XINT (XCAR (item)); | |
4310 | ||
4311 | /* Advance BYTEPOS, POSITION, TRANSLATED and ARGN | |
4312 | up to this position. */ | |
4313 | for (; position < pos; bytepos++) | |
4314 | { | |
4315 | if (! discarded[bytepos]) | |
4316 | position++, translated++; | |
4317 | else if (discarded[bytepos] == 1) | |
4318 | { | |
4319 | position++; | |
4320 | if (translated == info[argn].start) | |
4321 | { | |
4322 | translated += info[argn].end - info[argn].start; | |
4323 | argn++; | |
4324 | } | |
4325 | } | |
4326 | } | |
4327 | ||
4328 | XSETCAR (item, make_number (translated)); | |
4329 | ||
4330 | /* Likewise adjust the property end position. */ | |
4331 | pos = XINT (XCAR (XCDR (item))); | |
4332 | ||
d40ec4a0 | 4333 | for (; position < pos; bytepos++) |
d147ee84 RS |
4334 | { |
4335 | if (! discarded[bytepos]) | |
4336 | position++, translated++; | |
4337 | else if (discarded[bytepos] == 1) | |
4338 | { | |
4339 | position++; | |
4340 | if (translated == info[argn].start) | |
4341 | { | |
4342 | translated += info[argn].end - info[argn].start; | |
4343 | argn++; | |
4344 | } | |
4345 | } | |
4346 | } | |
4347 | ||
4348 | XSETCAR (XCDR (item), make_number (translated)); | |
4349 | } | |
4350 | ||
5e6d5493 GM |
4351 | add_text_properties_from_list (val, props, make_number (0)); |
4352 | } | |
4353 | ||
4354 | /* Add text properties from arguments. */ | |
d147ee84 | 4355 | if (arg_intervals) |
5e6d5493 | 4356 | for (n = 1; n < nargs; ++n) |
d147ee84 | 4357 | if (info[n].intervals) |
5e6d5493 | 4358 | { |
d5db4077 | 4359 | len = make_number (SCHARS (args[n])); |
5e6d5493 GM |
4360 | new_len = make_number (info[n].end - info[n].start); |
4361 | props = text_property_list (args[n], make_number (0), len, Qnil); | |
e398c61c CY |
4362 | props = extend_property_ranges (props, new_len); |
4363 | /* If successive arguments have properties, be sure that | |
be17069b KH |
4364 | the value of `composition' property be the copy. */ |
4365 | if (n > 1 && info[n - 1].end) | |
4366 | make_composition_value_copy (props); | |
5e6d5493 GM |
4367 | add_text_properties_from_list (val, props, |
4368 | make_number (info[n].start)); | |
4369 | } | |
4370 | ||
4371 | UNGCPRO; | |
4372 | } | |
4373 | ||
8d6179dc | 4374 | return val; |
35692fe0 JB |
4375 | } |
4376 | ||
35692fe0 | 4377 | Lisp_Object |
a8fe7202 | 4378 | format2 (const char *string1, Lisp_Object arg0, Lisp_Object arg1) |
d40dc1d0 RS |
4379 | { |
4380 | Lisp_Object args[3]; | |
d40dc1d0 RS |
4381 | args[0] = build_string (string1); |
4382 | args[1] = arg0; | |
4383 | args[2] = arg1; | |
4384 | return Fformat (3, args); | |
35692fe0 JB |
4385 | } |
4386 | \f | |
4387 | DEFUN ("char-equal", Fchar_equal, Schar_equal, 2, 2, 0, | |
7ee72033 | 4388 | doc: /* Return t if two characters match, optionally ignoring case. |
a1f17501 | 4389 | Both arguments must be characters (i.e. integers). |
7ee72033 | 4390 | Case is ignored if `case-fold-search' is non-nil in the current buffer. */) |
5842a27b | 4391 | (register Lisp_Object c1, Lisp_Object c2) |
35692fe0 | 4392 | { |
1b5d98bb | 4393 | int i1, i2; |
253c3c82 | 4394 | /* Check they're chars, not just integers, otherwise we could get array |
5da9919f | 4395 | bounds violations in downcase. */ |
253c3c82 SM |
4396 | CHECK_CHARACTER (c1); |
4397 | CHECK_CHARACTER (c2); | |
35692fe0 | 4398 | |
1b5d98bb | 4399 | if (XINT (c1) == XINT (c2)) |
35692fe0 | 4400 | return Qt; |
4b4deea2 | 4401 | if (NILP (BVAR (current_buffer, case_fold_search))) |
1b5d98bb RS |
4402 | return Qnil; |
4403 | ||
e5112ecb | 4404 | i1 = XFASTINT (c1); |
4b4deea2 | 4405 | if (NILP (BVAR (current_buffer, enable_multibyte_characters)) |
e5112ecb KH |
4406 | && ! ASCII_CHAR_P (i1)) |
4407 | { | |
4408 | MAKE_CHAR_MULTIBYTE (i1); | |
4409 | } | |
4410 | i2 = XFASTINT (c2); | |
4b4deea2 | 4411 | if (NILP (BVAR (current_buffer, enable_multibyte_characters)) |
e5112ecb KH |
4412 | && ! ASCII_CHAR_P (i2)) |
4413 | { | |
4414 | MAKE_CHAR_MULTIBYTE (i2); | |
4415 | } | |
0da09c43 | 4416 | return (downcase (i1) == downcase (i2) ? Qt : Qnil); |
35692fe0 | 4417 | } |
b229b8d1 RS |
4418 | \f |
4419 | /* Transpose the markers in two regions of the current buffer, and | |
4420 | adjust the ones between them if necessary (i.e.: if the regions | |
4421 | differ in size). | |
4422 | ||
ec1c14f6 RS |
4423 | START1, END1 are the character positions of the first region. |
4424 | START1_BYTE, END1_BYTE are the byte positions. | |
4425 | START2, END2 are the character positions of the second region. | |
4426 | START2_BYTE, END2_BYTE are the byte positions. | |
4427 | ||
b229b8d1 RS |
4428 | Traverses the entire marker list of the buffer to do so, adding an |
4429 | appropriate amount to some, subtracting from some, and leaving the | |
4430 | rest untouched. Most of this is copied from adjust_markers in insdel.c. | |
34a7a267 | 4431 | |
ec1c14f6 | 4432 | It's the caller's job to ensure that START1 <= END1 <= START2 <= END2. */ |
b229b8d1 | 4433 | |
acb7cc89 | 4434 | static void |
d311d28c PE |
4435 | transpose_markers (ptrdiff_t start1, ptrdiff_t end1, |
4436 | ptrdiff_t start2, ptrdiff_t end2, | |
4437 | ptrdiff_t start1_byte, ptrdiff_t end1_byte, | |
4438 | ptrdiff_t start2_byte, ptrdiff_t end2_byte) | |
b229b8d1 | 4439 | { |
d311d28c | 4440 | register ptrdiff_t amt1, amt1_byte, amt2, amt2_byte, diff, diff_byte, mpos; |
12038f9f | 4441 | register struct Lisp_Marker *marker; |
b229b8d1 | 4442 | |
03240d11 | 4443 | /* Update point as if it were a marker. */ |
8de1d5f0 KH |
4444 | if (PT < start1) |
4445 | ; | |
4446 | else if (PT < end1) | |
ec1c14f6 RS |
4447 | TEMP_SET_PT_BOTH (PT + (end2 - end1), |
4448 | PT_BYTE + (end2_byte - end1_byte)); | |
8de1d5f0 | 4449 | else if (PT < start2) |
ec1c14f6 RS |
4450 | TEMP_SET_PT_BOTH (PT + (end2 - start2) - (end1 - start1), |
4451 | (PT_BYTE + (end2_byte - start2_byte) | |
4452 | - (end1_byte - start1_byte))); | |
8de1d5f0 | 4453 | else if (PT < end2) |
ec1c14f6 RS |
4454 | TEMP_SET_PT_BOTH (PT - (start2 - start1), |
4455 | PT_BYTE - (start2_byte - start1_byte)); | |
8de1d5f0 | 4456 | |
03240d11 KH |
4457 | /* We used to adjust the endpoints here to account for the gap, but that |
4458 | isn't good enough. Even if we assume the caller has tried to move the | |
4459 | gap out of our way, it might still be at start1 exactly, for example; | |
4460 | and that places it `inside' the interval, for our purposes. The amount | |
4461 | of adjustment is nontrivial if there's a `denormalized' marker whose | |
4462 | position is between GPT and GPT + GAP_SIZE, so it's simpler to leave | |
4463 | the dirty work to Fmarker_position, below. */ | |
b229b8d1 RS |
4464 | |
4465 | /* The difference between the region's lengths */ | |
4466 | diff = (end2 - start2) - (end1 - start1); | |
ec1c14f6 | 4467 | diff_byte = (end2_byte - start2_byte) - (end1_byte - start1_byte); |
34a7a267 | 4468 | |
b229b8d1 | 4469 | /* For shifting each marker in a region by the length of the other |
ec1c14f6 | 4470 | region plus the distance between the regions. */ |
b229b8d1 RS |
4471 | amt1 = (end2 - start2) + (start2 - end1); |
4472 | amt2 = (end1 - start1) + (start2 - end1); | |
ec1c14f6 RS |
4473 | amt1_byte = (end2_byte - start2_byte) + (start2_byte - end1_byte); |
4474 | amt2_byte = (end1_byte - start1_byte) + (start2_byte - end1_byte); | |
b229b8d1 | 4475 | |
12038f9f | 4476 | for (marker = BUF_MARKERS (current_buffer); marker; marker = marker->next) |
b229b8d1 | 4477 | { |
12038f9f | 4478 | mpos = marker->bytepos; |
ec1c14f6 RS |
4479 | if (mpos >= start1_byte && mpos < end2_byte) |
4480 | { | |
4481 | if (mpos < end1_byte) | |
4482 | mpos += amt1_byte; | |
4483 | else if (mpos < start2_byte) | |
4484 | mpos += diff_byte; | |
4485 | else | |
4486 | mpos -= amt2_byte; | |
12038f9f | 4487 | marker->bytepos = mpos; |
ec1c14f6 | 4488 | } |
12038f9f | 4489 | mpos = marker->charpos; |
03240d11 KH |
4490 | if (mpos >= start1 && mpos < end2) |
4491 | { | |
4492 | if (mpos < end1) | |
4493 | mpos += amt1; | |
4494 | else if (mpos < start2) | |
4495 | mpos += diff; | |
4496 | else | |
4497 | mpos -= amt2; | |
03240d11 | 4498 | } |
12038f9f | 4499 | marker->charpos = mpos; |
b229b8d1 RS |
4500 | } |
4501 | } | |
4502 | ||
4503 | DEFUN ("transpose-regions", Ftranspose_regions, Stranspose_regions, 4, 5, 0, | |
412f1fab | 4504 | doc: /* Transpose region STARTR1 to ENDR1 with STARTR2 to ENDR2. |
27a69fd9 | 4505 | The regions should not be overlapping, because the size of the buffer is |
a1f17501 PJ |
4506 | never changed in a transposition. |
4507 | ||
412f1fab | 4508 | Optional fifth arg LEAVE-MARKERS, if non-nil, means don't update |
a1f17501 PJ |
4509 | any markers that happen to be located in the regions. |
4510 | ||
7ee72033 | 4511 | Transposing beyond buffer boundaries is an error. */) |
5842a27b | 4512 | (Lisp_Object startr1, Lisp_Object endr1, Lisp_Object startr2, Lisp_Object endr2, Lisp_Object leave_markers) |
b229b8d1 | 4513 | { |
d311d28c PE |
4514 | register ptrdiff_t start1, end1, start2, end2; |
4515 | ptrdiff_t start1_byte, start2_byte, len1_byte, len2_byte; | |
4516 | ptrdiff_t gap, len1, len_mid, len2; | |
3c6bc7d0 | 4517 | unsigned char *start1_addr, *start2_addr, *temp; |
b229b8d1 | 4518 | |
6cd0f478 | 4519 | INTERVAL cur_intv, tmp_interval1, tmp_interval_mid, tmp_interval2, tmp_interval3; |
916480c4 CY |
4520 | Lisp_Object buf; |
4521 | ||
4522 | XSETBUFFER (buf, current_buffer); | |
0c94c8d6 | 4523 | cur_intv = buffer_intervals (current_buffer); |
b229b8d1 RS |
4524 | |
4525 | validate_region (&startr1, &endr1); | |
4526 | validate_region (&startr2, &endr2); | |
4527 | ||
4528 | start1 = XFASTINT (startr1); | |
4529 | end1 = XFASTINT (endr1); | |
4530 | start2 = XFASTINT (startr2); | |
4531 | end2 = XFASTINT (endr2); | |
4532 | gap = GPT; | |
4533 | ||
4534 | /* Swap the regions if they're reversed. */ | |
4535 | if (start2 < end1) | |
4536 | { | |
d311d28c | 4537 | register ptrdiff_t glumph = start1; |
b229b8d1 RS |
4538 | start1 = start2; |
4539 | start2 = glumph; | |
4540 | glumph = end1; | |
4541 | end1 = end2; | |
4542 | end2 = glumph; | |
4543 | } | |
4544 | ||
b229b8d1 RS |
4545 | len1 = end1 - start1; |
4546 | len2 = end2 - start2; | |
4547 | ||
4548 | if (start2 < end1) | |
dc3620af | 4549 | error ("Transposed regions overlap"); |
0f4aebc0 LL |
4550 | /* Nothing to change for adjacent regions with one being empty */ |
4551 | else if ((start1 == end1 || start2 == end2) && end1 == start2) | |
4552 | return Qnil; | |
b229b8d1 RS |
4553 | |
4554 | /* The possibilities are: | |
4555 | 1. Adjacent (contiguous) regions, or separate but equal regions | |
4556 | (no, really equal, in this case!), or | |
4557 | 2. Separate regions of unequal size. | |
34a7a267 | 4558 | |
b229b8d1 RS |
4559 | The worst case is usually No. 2. It means that (aside from |
4560 | potential need for getting the gap out of the way), there also | |
4561 | needs to be a shifting of the text between the two regions. So | |
4562 | if they are spread far apart, we are that much slower... sigh. */ | |
4563 | ||
4564 | /* It must be pointed out that the really studly thing to do would | |
4565 | be not to move the gap at all, but to leave it in place and work | |
4566 | around it if necessary. This would be extremely efficient, | |
4567 | especially considering that people are likely to do | |
4568 | transpositions near where they are working interactively, which | |
4569 | is exactly where the gap would be found. However, such code | |
4570 | would be much harder to write and to read. So, if you are | |
4571 | reading this comment and are feeling squirrely, by all means have | |
4572 | a go! I just didn't feel like doing it, so I will simply move | |
4573 | the gap the minimum distance to get it out of the way, and then | |
4574 | deal with an unbroken array. */ | |
3c6bc7d0 RS |
4575 | |
4576 | /* Make sure the gap won't interfere, by moving it out of the text | |
4577 | we will operate on. */ | |
4578 | if (start1 < gap && gap < end2) | |
4579 | { | |
4580 | if (gap - start1 < end2 - gap) | |
4581 | move_gap (start1); | |
4582 | else | |
4583 | move_gap (end2); | |
4584 | } | |
ec1c14f6 RS |
4585 | |
4586 | start1_byte = CHAR_TO_BYTE (start1); | |
4587 | start2_byte = CHAR_TO_BYTE (start2); | |
4588 | len1_byte = CHAR_TO_BYTE (end1) - start1_byte; | |
4589 | len2_byte = CHAR_TO_BYTE (end2) - start2_byte; | |
dc3620af | 4590 | |
9a599130 | 4591 | #ifdef BYTE_COMBINING_DEBUG |
dc3620af RS |
4592 | if (end1 == start2) |
4593 | { | |
9a599130 KH |
4594 | if (count_combining_before (BYTE_POS_ADDR (start2_byte), |
4595 | len2_byte, start1, start1_byte) | |
4596 | || count_combining_before (BYTE_POS_ADDR (start1_byte), | |
4597 | len1_byte, end2, start2_byte + len2_byte) | |
4598 | || count_combining_after (BYTE_POS_ADDR (start1_byte), | |
4599 | len1_byte, end2, start2_byte + len2_byte)) | |
1088b922 | 4600 | emacs_abort (); |
dc3620af RS |
4601 | } |
4602 | else | |
4603 | { | |
9a599130 KH |
4604 | if (count_combining_before (BYTE_POS_ADDR (start2_byte), |
4605 | len2_byte, start1, start1_byte) | |
4606 | || count_combining_before (BYTE_POS_ADDR (start1_byte), | |
4607 | len1_byte, start2, start2_byte) | |
4608 | || count_combining_after (BYTE_POS_ADDR (start2_byte), | |
4609 | len2_byte, end1, start1_byte + len1_byte) | |
4610 | || count_combining_after (BYTE_POS_ADDR (start1_byte), | |
4611 | len1_byte, end2, start2_byte + len2_byte)) | |
1088b922 | 4612 | emacs_abort (); |
dc3620af | 4613 | } |
9a599130 | 4614 | #endif |
dc3620af | 4615 | |
b229b8d1 RS |
4616 | /* Hmmm... how about checking to see if the gap is large |
4617 | enough to use as the temporary storage? That would avoid an | |
4618 | allocation... interesting. Later, don't fool with it now. */ | |
4619 | ||
4620 | /* Working without memmove, for portability (sigh), so must be | |
4621 | careful of overlapping subsections of the array... */ | |
4622 | ||
4623 | if (end1 == start2) /* adjacent regions */ | |
4624 | { | |
20edc1c9 | 4625 | modify_region_1 (start1, end2, false); |
b229b8d1 RS |
4626 | record_change (start1, len1 + len2); |
4627 | ||
b229b8d1 RS |
4628 | tmp_interval1 = copy_intervals (cur_intv, start1, len1); |
4629 | tmp_interval2 = copy_intervals (cur_intv, start2, len2); | |
916480c4 CY |
4630 | /* Don't use Fset_text_properties: that can cause GC, which can |
4631 | clobber objects stored in the tmp_intervals. */ | |
6cd0f478 | 4632 | tmp_interval3 = validate_interval_range (buf, &startr1, &endr2, 0); |
77c7bcb1 | 4633 | if (tmp_interval3) |
6cd0f478 | 4634 | set_text_properties_1 (startr1, endr2, Qnil, buf, tmp_interval3); |
b229b8d1 RS |
4635 | |
4636 | /* First region smaller than second. */ | |
ec1c14f6 | 4637 | if (len1_byte < len2_byte) |
b229b8d1 | 4638 | { |
7e2c051b KS |
4639 | USE_SAFE_ALLOCA; |
4640 | ||
98c6f1e3 | 4641 | temp = SAFE_ALLOCA (len2_byte); |
03240d11 KH |
4642 | |
4643 | /* Don't precompute these addresses. We have to compute them | |
4644 | at the last minute, because the relocating allocator might | |
4645 | have moved the buffer around during the xmalloc. */ | |
23017390 KH |
4646 | start1_addr = BYTE_POS_ADDR (start1_byte); |
4647 | start2_addr = BYTE_POS_ADDR (start2_byte); | |
03240d11 | 4648 | |
72af86bd AS |
4649 | memcpy (temp, start2_addr, len2_byte); |
4650 | memcpy (start1_addr + len2_byte, start1_addr, len1_byte); | |
4651 | memcpy (start1_addr, temp, len2_byte); | |
e65837df | 4652 | SAFE_FREE (); |
b229b8d1 RS |
4653 | } |
4654 | else | |
4655 | /* First region not smaller than second. */ | |
4656 | { | |
7e2c051b KS |
4657 | USE_SAFE_ALLOCA; |
4658 | ||
98c6f1e3 | 4659 | temp = SAFE_ALLOCA (len1_byte); |
23017390 KH |
4660 | start1_addr = BYTE_POS_ADDR (start1_byte); |
4661 | start2_addr = BYTE_POS_ADDR (start2_byte); | |
72af86bd AS |
4662 | memcpy (temp, start1_addr, len1_byte); |
4663 | memcpy (start1_addr, start2_addr, len2_byte); | |
4664 | memcpy (start1_addr + len2_byte, temp, len1_byte); | |
e65837df | 4665 | SAFE_FREE (); |
b229b8d1 | 4666 | } |
b229b8d1 RS |
4667 | graft_intervals_into_buffer (tmp_interval1, start1 + len2, |
4668 | len1, current_buffer, 0); | |
4669 | graft_intervals_into_buffer (tmp_interval2, start1, | |
4670 | len2, current_buffer, 0); | |
d5c2c403 KH |
4671 | update_compositions (start1, start1 + len2, CHECK_BORDER); |
4672 | update_compositions (start1 + len2, end2, CHECK_TAIL); | |
b229b8d1 RS |
4673 | } |
4674 | /* Non-adjacent regions, because end1 != start2, bleagh... */ | |
4675 | else | |
4676 | { | |
ec1c14f6 RS |
4677 | len_mid = start2_byte - (start1_byte + len1_byte); |
4678 | ||
4679 | if (len1_byte == len2_byte) | |
b229b8d1 RS |
4680 | /* Regions are same size, though, how nice. */ |
4681 | { | |
7e2c051b KS |
4682 | USE_SAFE_ALLOCA; |
4683 | ||
20edc1c9 DA |
4684 | modify_region_1 (start1, end1, false); |
4685 | modify_region_1 (start2, end2, false); | |
b229b8d1 RS |
4686 | record_change (start1, len1); |
4687 | record_change (start2, len2); | |
b229b8d1 RS |
4688 | tmp_interval1 = copy_intervals (cur_intv, start1, len1); |
4689 | tmp_interval2 = copy_intervals (cur_intv, start2, len2); | |
6cd0f478 CY |
4690 | |
4691 | tmp_interval3 = validate_interval_range (buf, &startr1, &endr1, 0); | |
77c7bcb1 | 4692 | if (tmp_interval3) |
6cd0f478 CY |
4693 | set_text_properties_1 (startr1, endr1, Qnil, buf, tmp_interval3); |
4694 | ||
4695 | tmp_interval3 = validate_interval_range (buf, &startr2, &endr2, 0); | |
77c7bcb1 | 4696 | if (tmp_interval3) |
6cd0f478 | 4697 | set_text_properties_1 (startr2, endr2, Qnil, buf, tmp_interval3); |
b229b8d1 | 4698 | |
98c6f1e3 | 4699 | temp = SAFE_ALLOCA (len1_byte); |
23017390 KH |
4700 | start1_addr = BYTE_POS_ADDR (start1_byte); |
4701 | start2_addr = BYTE_POS_ADDR (start2_byte); | |
72af86bd AS |
4702 | memcpy (temp, start1_addr, len1_byte); |
4703 | memcpy (start1_addr, start2_addr, len2_byte); | |
4704 | memcpy (start2_addr, temp, len1_byte); | |
e65837df | 4705 | SAFE_FREE (); |
7e2c051b | 4706 | |
b229b8d1 RS |
4707 | graft_intervals_into_buffer (tmp_interval1, start2, |
4708 | len1, current_buffer, 0); | |
4709 | graft_intervals_into_buffer (tmp_interval2, start1, | |
4710 | len2, current_buffer, 0); | |
b229b8d1 RS |
4711 | } |
4712 | ||
ec1c14f6 | 4713 | else if (len1_byte < len2_byte) /* Second region larger than first */ |
b229b8d1 RS |
4714 | /* Non-adjacent & unequal size, area between must also be shifted. */ |
4715 | { | |
7e2c051b KS |
4716 | USE_SAFE_ALLOCA; |
4717 | ||
20edc1c9 | 4718 | modify_region_1 (start1, end2, false); |
b229b8d1 | 4719 | record_change (start1, (end2 - start1)); |
b229b8d1 RS |
4720 | tmp_interval1 = copy_intervals (cur_intv, start1, len1); |
4721 | tmp_interval_mid = copy_intervals (cur_intv, end1, len_mid); | |
4722 | tmp_interval2 = copy_intervals (cur_intv, start2, len2); | |
6cd0f478 CY |
4723 | |
4724 | tmp_interval3 = validate_interval_range (buf, &startr1, &endr2, 0); | |
77c7bcb1 | 4725 | if (tmp_interval3) |
6cd0f478 | 4726 | set_text_properties_1 (startr1, endr2, Qnil, buf, tmp_interval3); |
b229b8d1 | 4727 | |
3c6bc7d0 | 4728 | /* holds region 2 */ |
98c6f1e3 | 4729 | temp = SAFE_ALLOCA (len2_byte); |
23017390 KH |
4730 | start1_addr = BYTE_POS_ADDR (start1_byte); |
4731 | start2_addr = BYTE_POS_ADDR (start2_byte); | |
72af86bd AS |
4732 | memcpy (temp, start2_addr, len2_byte); |
4733 | memcpy (start1_addr + len_mid + len2_byte, start1_addr, len1_byte); | |
4734 | memmove (start1_addr + len2_byte, start1_addr + len1_byte, len_mid); | |
4735 | memcpy (start1_addr, temp, len2_byte); | |
e65837df | 4736 | SAFE_FREE (); |
7e2c051b | 4737 | |
b229b8d1 RS |
4738 | graft_intervals_into_buffer (tmp_interval1, end2 - len1, |
4739 | len1, current_buffer, 0); | |
4740 | graft_intervals_into_buffer (tmp_interval_mid, start1 + len2, | |
4741 | len_mid, current_buffer, 0); | |
4742 | graft_intervals_into_buffer (tmp_interval2, start1, | |
4743 | len2, current_buffer, 0); | |
b229b8d1 RS |
4744 | } |
4745 | else | |
4746 | /* Second region smaller than first. */ | |
4747 | { | |
7e2c051b KS |
4748 | USE_SAFE_ALLOCA; |
4749 | ||
b229b8d1 | 4750 | record_change (start1, (end2 - start1)); |
20edc1c9 | 4751 | modify_region_1 (start1, end2, false); |
b229b8d1 | 4752 | |
b229b8d1 RS |
4753 | tmp_interval1 = copy_intervals (cur_intv, start1, len1); |
4754 | tmp_interval_mid = copy_intervals (cur_intv, end1, len_mid); | |
4755 | tmp_interval2 = copy_intervals (cur_intv, start2, len2); | |
6cd0f478 CY |
4756 | |
4757 | tmp_interval3 = validate_interval_range (buf, &startr1, &endr2, 0); | |
77c7bcb1 | 4758 | if (tmp_interval3) |
6cd0f478 | 4759 | set_text_properties_1 (startr1, endr2, Qnil, buf, tmp_interval3); |
b229b8d1 | 4760 | |
3c6bc7d0 | 4761 | /* holds region 1 */ |
98c6f1e3 | 4762 | temp = SAFE_ALLOCA (len1_byte); |
23017390 KH |
4763 | start1_addr = BYTE_POS_ADDR (start1_byte); |
4764 | start2_addr = BYTE_POS_ADDR (start2_byte); | |
72af86bd AS |
4765 | memcpy (temp, start1_addr, len1_byte); |
4766 | memcpy (start1_addr, start2_addr, len2_byte); | |
4767 | memcpy (start1_addr + len2_byte, start1_addr + len1_byte, len_mid); | |
4768 | memcpy (start1_addr + len2_byte + len_mid, temp, len1_byte); | |
e65837df | 4769 | SAFE_FREE (); |
7e2c051b | 4770 | |
b229b8d1 RS |
4771 | graft_intervals_into_buffer (tmp_interval1, end2 - len1, |
4772 | len1, current_buffer, 0); | |
4773 | graft_intervals_into_buffer (tmp_interval_mid, start1 + len2, | |
4774 | len_mid, current_buffer, 0); | |
4775 | graft_intervals_into_buffer (tmp_interval2, start1, | |
4776 | len2, current_buffer, 0); | |
b229b8d1 | 4777 | } |
d5c2c403 KH |
4778 | |
4779 | update_compositions (start1, start1 + len2, CHECK_BORDER); | |
4780 | update_compositions (end2 - len1, end2, CHECK_BORDER); | |
b229b8d1 RS |
4781 | } |
4782 | ||
ec1c14f6 RS |
4783 | /* When doing multiple transpositions, it might be nice |
4784 | to optimize this. Perhaps the markers in any one buffer | |
4785 | should be organized in some sorted data tree. */ | |
b229b8d1 | 4786 | if (NILP (leave_markers)) |
8de1d5f0 | 4787 | { |
ec1c14f6 RS |
4788 | transpose_markers (start1, end1, start2, end2, |
4789 | start1_byte, start1_byte + len1_byte, | |
4790 | start2_byte, start2_byte + len2_byte); | |
6b61353c | 4791 | fix_start_end_in_overlays (start1, end2); |
8de1d5f0 | 4792 | } |
b229b8d1 | 4793 | |
c10b2810 | 4794 | signal_after_change (start1, end2 - start1, end2 - start1); |
b229b8d1 RS |
4795 | return Qnil; |
4796 | } | |
35692fe0 | 4797 | |
35692fe0 JB |
4798 | \f |
4799 | void | |
971de7fb | 4800 | syms_of_editfns (void) |
35692fe0 | 4801 | { |
260e2e2a | 4802 | environbuf = 0; |
a03fc5a6 | 4803 | initial_tz = 0; |
260e2e2a | 4804 | |
cd3520a4 | 4805 | DEFSYM (Qbuffer_access_fontify_functions, "buffer-access-fontify-functions"); |
260e2e2a | 4806 | |
29208e82 | 4807 | DEFVAR_LISP ("inhibit-field-text-motion", Vinhibit_field_text_motion, |
7dcece14 | 4808 | doc: /* Non-nil means text motion commands don't notice fields. */); |
9a74e7e5 GM |
4809 | Vinhibit_field_text_motion = Qnil; |
4810 | ||
260e2e2a | 4811 | DEFVAR_LISP ("buffer-access-fontify-functions", |
29208e82 | 4812 | Vbuffer_access_fontify_functions, |
7ee72033 | 4813 | doc: /* List of functions called by `buffer-substring' to fontify if necessary. |
a1f17501 PJ |
4814 | Each function is called with two arguments which specify the range |
4815 | of the buffer being accessed. */); | |
260e2e2a KH |
4816 | Vbuffer_access_fontify_functions = Qnil; |
4817 | ||
af209db8 RS |
4818 | { |
4819 | Lisp_Object obuf; | |
af209db8 RS |
4820 | obuf = Fcurrent_buffer (); |
4821 | /* Do this here, because init_buffer_once is too early--it won't work. */ | |
4822 | Fset_buffer (Vprin1_to_string_buffer); | |
4823 | /* Make sure buffer-access-fontify-functions is nil in this buffer. */ | |
d67b4f80 | 4824 | Fset (Fmake_local_variable (intern_c_string ("buffer-access-fontify-functions")), |
af209db8 RS |
4825 | Qnil); |
4826 | Fset_buffer (obuf); | |
4827 | } | |
4828 | ||
0b6fd023 | 4829 | DEFVAR_LISP ("buffer-access-fontified-property", |
29208e82 | 4830 | Vbuffer_access_fontified_property, |
7ee72033 | 4831 | doc: /* Property which (if non-nil) indicates text has been fontified. |
a1f17501 PJ |
4832 | `buffer-substring' need not call the `buffer-access-fontify-functions' |
4833 | functions if all the text being accessed has this property. */); | |
260e2e2a KH |
4834 | Vbuffer_access_fontified_property = Qnil; |
4835 | ||
29208e82 | 4836 | DEFVAR_LISP ("system-name", Vsystem_name, |
1a7e0117 | 4837 | doc: /* The host name of the machine Emacs is running on. */); |
34a7a267 | 4838 | |
29208e82 | 4839 | DEFVAR_LISP ("user-full-name", Vuser_full_name, |
7ee72033 | 4840 | doc: /* The full name of the user logged in. */); |
f43754f6 | 4841 | |
29208e82 | 4842 | DEFVAR_LISP ("user-login-name", Vuser_login_name, |
7ee72033 | 4843 | doc: /* The user's name, taken from environment variables if possible. */); |
f43754f6 | 4844 | |
29208e82 | 4845 | DEFVAR_LISP ("user-real-login-name", Vuser_real_login_name, |
7ee72033 | 4846 | doc: /* The user's name, based upon the real uid only. */); |
35692fe0 | 4847 | |
29208e82 | 4848 | DEFVAR_LISP ("operating-system-release", Voperating_system_release, |
3bb9abc8 ST |
4849 | doc: /* The release of the operating system Emacs is running on. */); |
4850 | ||
0963334d | 4851 | defsubr (&Spropertize); |
35692fe0 JB |
4852 | defsubr (&Schar_equal); |
4853 | defsubr (&Sgoto_char); | |
4854 | defsubr (&Sstring_to_char); | |
4855 | defsubr (&Schar_to_string); | |
c3bb441d | 4856 | defsubr (&Sbyte_to_string); |
35692fe0 | 4857 | defsubr (&Sbuffer_substring); |
260e2e2a | 4858 | defsubr (&Sbuffer_substring_no_properties); |
35692fe0 JB |
4859 | defsubr (&Sbuffer_string); |
4860 | ||
4861 | defsubr (&Spoint_marker); | |
4862 | defsubr (&Smark_marker); | |
4863 | defsubr (&Spoint); | |
4864 | defsubr (&Sregion_beginning); | |
4865 | defsubr (&Sregion_end); | |
7df74da6 | 4866 | |
cd3520a4 JB |
4867 | DEFSYM (Qfield, "field"); |
4868 | DEFSYM (Qboundary, "boundary"); | |
0daf6e8d GM |
4869 | defsubr (&Sfield_beginning); |
4870 | defsubr (&Sfield_end); | |
4871 | defsubr (&Sfield_string); | |
4872 | defsubr (&Sfield_string_no_properties); | |
8bf64fe8 | 4873 | defsubr (&Sdelete_field); |
0daf6e8d GM |
4874 | defsubr (&Sconstrain_to_field); |
4875 | ||
7df74da6 RS |
4876 | defsubr (&Sline_beginning_position); |
4877 | defsubr (&Sline_end_position); | |
4878 | ||
35692fe0 JB |
4879 | /* defsubr (&Smark); */ |
4880 | /* defsubr (&Sset_mark); */ | |
4881 | defsubr (&Ssave_excursion); | |
4bc8c7d2 | 4882 | defsubr (&Ssave_current_buffer); |
35692fe0 JB |
4883 | |
4884 | defsubr (&Sbufsize); | |
4885 | defsubr (&Spoint_max); | |
4886 | defsubr (&Spoint_min); | |
4887 | defsubr (&Spoint_min_marker); | |
4888 | defsubr (&Spoint_max_marker); | |
c86212b9 RS |
4889 | defsubr (&Sgap_position); |
4890 | defsubr (&Sgap_size); | |
7df74da6 | 4891 | defsubr (&Sposition_bytes); |
3ab0732d | 4892 | defsubr (&Sbyte_to_position); |
c9ed721d | 4893 | |
35692fe0 JB |
4894 | defsubr (&Sbobp); |
4895 | defsubr (&Seobp); | |
4896 | defsubr (&Sbolp); | |
4897 | defsubr (&Seolp); | |
850a8179 JB |
4898 | defsubr (&Sfollowing_char); |
4899 | defsubr (&Sprevious_char); | |
35692fe0 | 4900 | defsubr (&Schar_after); |
fb8106e8 | 4901 | defsubr (&Schar_before); |
35692fe0 JB |
4902 | defsubr (&Sinsert); |
4903 | defsubr (&Sinsert_before_markers); | |
be91036a RS |
4904 | defsubr (&Sinsert_and_inherit); |
4905 | defsubr (&Sinsert_and_inherit_before_markers); | |
35692fe0 | 4906 | defsubr (&Sinsert_char); |
48ef988f | 4907 | defsubr (&Sinsert_byte); |
35692fe0 JB |
4908 | |
4909 | defsubr (&Suser_login_name); | |
4910 | defsubr (&Suser_real_login_name); | |
4911 | defsubr (&Suser_uid); | |
4912 | defsubr (&Suser_real_uid); | |
4913 | defsubr (&Suser_full_name); | |
7fd233b3 | 4914 | defsubr (&Semacs_pid); |
d940e0e4 | 4915 | defsubr (&Scurrent_time); |
4211ee7d | 4916 | defsubr (&Sget_internal_run_time); |
a82d387c | 4917 | defsubr (&Sformat_time_string); |
34a7a267 | 4918 | defsubr (&Sfloat_time); |
4691c06d | 4919 | defsubr (&Sdecode_time); |
cce7b8a0 | 4920 | defsubr (&Sencode_time); |
35692fe0 | 4921 | defsubr (&Scurrent_time_string); |
c2662aea | 4922 | defsubr (&Scurrent_time_zone); |
143cb9a9 | 4923 | defsubr (&Sset_time_zone_rule); |
35692fe0 | 4924 | defsubr (&Ssystem_name); |
35692fe0 | 4925 | defsubr (&Smessage); |
cacc3e2c RS |
4926 | defsubr (&Smessage_box); |
4927 | defsubr (&Smessage_or_box); | |
b14dda8a | 4928 | defsubr (&Scurrent_message); |
35692fe0 | 4929 | defsubr (&Sformat); |
35692fe0 JB |
4930 | |
4931 | defsubr (&Sinsert_buffer_substring); | |
e9cf2084 | 4932 | defsubr (&Scompare_buffer_substrings); |
35692fe0 | 4933 | defsubr (&Ssubst_char_in_region); |
8583605b | 4934 | defsubr (&Stranslate_region_internal); |
35692fe0 | 4935 | defsubr (&Sdelete_region); |
7dae4502 | 4936 | defsubr (&Sdelete_and_extract_region); |
35692fe0 JB |
4937 | defsubr (&Swiden); |
4938 | defsubr (&Snarrow_to_region); | |
4939 | defsubr (&Ssave_restriction); | |
b229b8d1 | 4940 | defsubr (&Stranspose_regions); |
35692fe0 | 4941 | } |