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35692fe0 | 1 | /* Lisp functions pertaining to editing. |
dfe6cbf8 | 2 | Copyright (C) 1985,86,87,89,93,94,95,96,97,98, 1999, 2000, 2001, 02, 2003 |
acb7cc89 | 3 | Free Software Foundation, Inc. |
35692fe0 JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
7c938215 | 9 | the Free Software Foundation; either version 2, or (at your option) |
35692fe0 JB |
10 | any later version. |
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 | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
5a7670bf RS |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
35692fe0 JB |
21 | |
22 | ||
18160b98 | 23 | #include <config.h> |
68c45bf0 | 24 | #include <sys/types.h> |
bfb61299 JB |
25 | |
26 | #ifdef VMS | |
956ace37 | 27 | #include "vms-pwd.h" |
bfb61299 | 28 | #else |
35692fe0 | 29 | #include <pwd.h> |
bfb61299 JB |
30 | #endif |
31 | ||
dfcf069d AS |
32 | #ifdef HAVE_UNISTD_H |
33 | #include <unistd.h> | |
34 | #endif | |
35 | ||
e0f712ba AC |
36 | /* Without this, sprintf on Mac OS Classic will produce wrong |
37 | result. */ | |
38 | #ifdef MAC_OS8 | |
39 | #include <stdio.h> | |
40 | #endif | |
41 | ||
409847a1 RS |
42 | #include <ctype.h> |
43 | ||
35692fe0 | 44 | #include "lisp.h" |
74d6d8c5 | 45 | #include "intervals.h" |
35692fe0 | 46 | #include "buffer.h" |
fb8106e8 | 47 | #include "charset.h" |
68c45bf0 | 48 | #include "coding.h" |
0ae83348 | 49 | #include "frame.h" |
35692fe0 JB |
50 | #include "window.h" |
51 | ||
956ace37 | 52 | #include "systime.h" |
35692fe0 | 53 | |
ea229bec GM |
54 | #ifdef STDC_HEADERS |
55 | #include <float.h> | |
56 | #define MAX_10_EXP DBL_MAX_10_EXP | |
57 | #else | |
58 | #define MAX_10_EXP 310 | |
59 | #endif | |
60 | ||
a03eaf1c RS |
61 | #ifndef NULL |
62 | #define NULL 0 | |
63 | #endif | |
64 | ||
f12ef5eb | 65 | #ifndef USE_CRT_DLL |
c59b5089 | 66 | extern char **environ; |
f12ef5eb AI |
67 | #endif |
68 | ||
acb7cc89 GM |
69 | extern Lisp_Object make_time P_ ((time_t)); |
70 | extern size_t emacs_strftimeu P_ ((char *, size_t, const char *, | |
71 | const struct tm *, int)); | |
72 | static int tm_diff P_ ((struct tm *, struct tm *)); | |
9ac741c5 | 73 | static void find_field P_ ((Lisp_Object, Lisp_Object, Lisp_Object, int *, Lisp_Object, int *)); |
acb7cc89 GM |
74 | static void update_buffer_properties P_ ((int, int)); |
75 | static Lisp_Object region_limit P_ ((int)); | |
76 | static int lisp_time_argument P_ ((Lisp_Object, time_t *, int *)); | |
77 | static size_t emacs_memftimeu P_ ((char *, size_t, const char *, | |
78 | size_t, const struct tm *, int)); | |
439e8af4 | 79 | static void general_insert_function P_ ((void (*) (const unsigned char *, int), |
acb7cc89 GM |
80 | void (*) (Lisp_Object, int, int, int, |
81 | int, int), | |
82 | int, int, Lisp_Object *)); | |
83 | static Lisp_Object subst_char_in_region_unwind P_ ((Lisp_Object)); | |
84 | static Lisp_Object subst_char_in_region_unwind_1 P_ ((Lisp_Object)); | |
85 | static void transpose_markers P_ ((int, int, int, int, int, int, int, int)); | |
260e2e2a | 86 | |
8892f40b GM |
87 | #ifdef HAVE_INDEX |
88 | extern char *index P_ ((const char *, int)); | |
89 | #endif | |
90 | ||
260e2e2a KH |
91 | Lisp_Object Vbuffer_access_fontify_functions; |
92 | Lisp_Object Qbuffer_access_fontify_functions; | |
93 | Lisp_Object Vbuffer_access_fontified_property; | |
b1b0ee5a | 94 | |
acb7cc89 | 95 | Lisp_Object Fuser_full_name P_ ((Lisp_Object)); |
e3ed8469 | 96 | |
9a74e7e5 GM |
97 | /* Non-nil means don't stop at field boundary in text motion commands. */ |
98 | ||
99 | Lisp_Object Vinhibit_field_text_motion; | |
100 | ||
35692fe0 JB |
101 | /* Some static data, and a function to initialize it for each run */ |
102 | ||
103 | Lisp_Object Vsystem_name; | |
35b34f72 KH |
104 | Lisp_Object Vuser_real_login_name; /* login name of current user ID */ |
105 | Lisp_Object Vuser_full_name; /* full name of current user */ | |
106 | Lisp_Object Vuser_login_name; /* user name from LOGNAME or USER */ | |
35692fe0 | 107 | |
acb7cc89 GM |
108 | /* Symbol for the text property used to mark fields. */ |
109 | ||
110 | Lisp_Object Qfield; | |
111 | ||
112 | /* A special value for Qfield properties. */ | |
113 | ||
114 | Lisp_Object Qboundary; | |
115 | ||
116 | ||
35692fe0 JB |
117 | void |
118 | init_editfns () | |
119 | { | |
52b14ac0 | 120 | char *user_name; |
2ea0266e | 121 | register unsigned char *p; |
35692fe0 | 122 | struct passwd *pw; /* password entry for the current user */ |
35692fe0 JB |
123 | Lisp_Object tem; |
124 | ||
125 | /* Set up system_name even when dumping. */ | |
ac988277 | 126 | init_system_name (); |
35692fe0 JB |
127 | |
128 | #ifndef CANNOT_DUMP | |
129 | /* Don't bother with this on initial start when just dumping out */ | |
130 | if (!initialized) | |
131 | return; | |
132 | #endif /* not CANNOT_DUMP */ | |
133 | ||
134 | pw = (struct passwd *) getpwuid (getuid ()); | |
87485d6f MW |
135 | #ifdef MSDOS |
136 | /* We let the real user name default to "root" because that's quite | |
137 | accurate on MSDOG and because it lets Emacs find the init file. | |
138 | (The DVX libraries override the Djgpp libraries here.) */ | |
35b34f72 | 139 | Vuser_real_login_name = build_string (pw ? pw->pw_name : "root"); |
87485d6f | 140 | #else |
35b34f72 | 141 | Vuser_real_login_name = build_string (pw ? pw->pw_name : "unknown"); |
87485d6f | 142 | #endif |
35692fe0 | 143 | |
52b14ac0 JB |
144 | /* Get the effective user name, by consulting environment variables, |
145 | or the effective uid if those are unset. */ | |
2c9ae24e | 146 | user_name = (char *) getenv ("LOGNAME"); |
35692fe0 | 147 | if (!user_name) |
4691c06d RS |
148 | #ifdef WINDOWSNT |
149 | user_name = (char *) getenv ("USERNAME"); /* it's USERNAME on NT */ | |
150 | #else /* WINDOWSNT */ | |
2c9ae24e | 151 | user_name = (char *) getenv ("USER"); |
4691c06d | 152 | #endif /* WINDOWSNT */ |
52b14ac0 JB |
153 | if (!user_name) |
154 | { | |
155 | pw = (struct passwd *) getpwuid (geteuid ()); | |
156 | user_name = (char *) (pw ? pw->pw_name : "unknown"); | |
157 | } | |
35b34f72 | 158 | Vuser_login_name = build_string (user_name); |
35692fe0 | 159 | |
52b14ac0 JB |
160 | /* If the user name claimed in the environment vars differs from |
161 | the real uid, use the claimed name to find the full name. */ | |
35b34f72 | 162 | tem = Fstring_equal (Vuser_login_name, Vuser_real_login_name); |
3415b0e9 RS |
163 | Vuser_full_name = Fuser_full_name (NILP (tem)? make_number (geteuid()) |
164 | : Vuser_login_name); | |
34a7a267 | 165 | |
8f1e2d16 | 166 | p = (unsigned char *) getenv ("NAME"); |
9d36d071 RS |
167 | if (p) |
168 | Vuser_full_name = build_string (p); | |
3347526c RS |
169 | else if (NILP (Vuser_full_name)) |
170 | Vuser_full_name = build_string ("unknown"); | |
35692fe0 JB |
171 | } |
172 | \f | |
173 | DEFUN ("char-to-string", Fchar_to_string, Schar_to_string, 1, 1, 0, | |
06283081 PJ |
174 | doc: /* Convert arg CHAR to a string containing that character. |
175 | usage: (char-to-string CHAR) */) | |
7ee72033 | 176 | (character) |
2591ec64 | 177 | Lisp_Object character; |
35692fe0 | 178 | { |
fb8106e8 | 179 | int len; |
d5c2c403 | 180 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
fb8106e8 | 181 | |
b7826503 | 182 | CHECK_NUMBER (character); |
35692fe0 | 183 | |
603a8d59 KH |
184 | len = (SINGLE_BYTE_CHAR_P (XFASTINT (character)) |
185 | ? (*str = (unsigned char)(XFASTINT (character)), 1) | |
186 | : char_to_string (XFASTINT (character), str)); | |
5f75e666 | 187 | return make_string_from_bytes (str, 1, len); |
35692fe0 JB |
188 | } |
189 | ||
190 | DEFUN ("string-to-char", Fstring_to_char, Sstring_to_char, 1, 1, 0, | |
7ee72033 MB |
191 | doc: /* Convert arg STRING to a character, the first character of that string. |
192 | A multibyte character is handled correctly. */) | |
193 | (string) | |
2591ec64 | 194 | register Lisp_Object string; |
35692fe0 JB |
195 | { |
196 | register Lisp_Object val; | |
b7826503 | 197 | CHECK_STRING (string); |
4e491f8d | 198 | if (SCHARS (string)) |
d9d851ea KH |
199 | { |
200 | if (STRING_MULTIBYTE (string)) | |
4e491f8d | 201 | XSETFASTINT (val, STRING_CHAR (SDATA (string), SBYTES (string))); |
d9d851ea | 202 | else |
4e491f8d | 203 | XSETFASTINT (val, SREF (string, 0)); |
d9d851ea | 204 | } |
35692fe0 | 205 | else |
55561c63 | 206 | XSETFASTINT (val, 0); |
35692fe0 JB |
207 | return val; |
208 | } | |
209 | \f | |
210 | static Lisp_Object | |
ec1c14f6 RS |
211 | buildmark (charpos, bytepos) |
212 | int charpos, bytepos; | |
35692fe0 JB |
213 | { |
214 | register Lisp_Object mark; | |
215 | mark = Fmake_marker (); | |
ec1c14f6 | 216 | set_marker_both (mark, Qnil, charpos, bytepos); |
35692fe0 JB |
217 | return mark; |
218 | } | |
219 | ||
220 | DEFUN ("point", Fpoint, Spoint, 0, 0, 0, | |
7ee72033 MB |
221 | doc: /* Return value of point, as an integer. |
222 | Beginning of buffer is position (point-min). */) | |
223 | () | |
35692fe0 JB |
224 | { |
225 | Lisp_Object temp; | |
6ec8bbd2 | 226 | XSETFASTINT (temp, PT); |
35692fe0 JB |
227 | return temp; |
228 | } | |
229 | ||
230 | DEFUN ("point-marker", Fpoint_marker, Spoint_marker, 0, 0, 0, | |
7ee72033 MB |
231 | doc: /* Return value of point, as a marker object. */) |
232 | () | |
35692fe0 | 233 | { |
ec1c14f6 | 234 | return buildmark (PT, PT_BYTE); |
35692fe0 JB |
235 | } |
236 | ||
237 | int | |
238 | clip_to_bounds (lower, num, upper) | |
239 | int lower, num, upper; | |
240 | { | |
241 | if (num < lower) | |
242 | return lower; | |
243 | else if (num > upper) | |
244 | return upper; | |
245 | else | |
246 | return num; | |
247 | } | |
248 | ||
249 | DEFUN ("goto-char", Fgoto_char, Sgoto_char, 1, 1, "NGoto char: ", | |
7ee72033 | 250 | doc: /* Set point to POSITION, a number or marker. |
a1f17501 PJ |
251 | Beginning of buffer is position (point-min), end is (point-max). |
252 | If the position is in the middle of a multibyte form, | |
253 | the actual point is set at the head of the multibyte form | |
7ee72033 MB |
254 | except in the case that `enable-multibyte-characters' is nil. */) |
255 | (position) | |
2591ec64 | 256 | register Lisp_Object position; |
35692fe0 | 257 | { |
fb8106e8 | 258 | int pos; |
fb8106e8 | 259 | |
72ef82ec RS |
260 | if (MARKERP (position) |
261 | && current_buffer == XMARKER (position)->buffer) | |
ec1c14f6 RS |
262 | { |
263 | pos = marker_position (position); | |
264 | if (pos < BEGV) | |
265 | SET_PT_BOTH (BEGV, BEGV_BYTE); | |
266 | else if (pos > ZV) | |
267 | SET_PT_BOTH (ZV, ZV_BYTE); | |
268 | else | |
269 | SET_PT_BOTH (pos, marker_byte_position (position)); | |
270 | ||
271 | return position; | |
272 | } | |
273 | ||
b7826503 | 274 | CHECK_NUMBER_COERCE_MARKER (position); |
35692fe0 | 275 | |
fb8106e8 | 276 | pos = clip_to_bounds (BEGV, XINT (position), ZV); |
fb8106e8 | 277 | SET_PT (pos); |
2591ec64 | 278 | return position; |
35692fe0 JB |
279 | } |
280 | ||
acb7cc89 GM |
281 | |
282 | /* Return the start or end position of the region. | |
283 | BEGINNINGP non-zero means return the start. | |
284 | If there is no region active, signal an error. */ | |
285 | ||
35692fe0 JB |
286 | static Lisp_Object |
287 | region_limit (beginningp) | |
288 | int beginningp; | |
289 | { | |
646d9d18 | 290 | extern Lisp_Object Vmark_even_if_inactive; /* Defined in callint.c. */ |
acb7cc89 | 291 | Lisp_Object m; |
177c0ea7 | 292 | |
acb7cc89 GM |
293 | if (!NILP (Vtransient_mark_mode) |
294 | && NILP (Vmark_even_if_inactive) | |
c9dd14e1 RM |
295 | && NILP (current_buffer->mark_active)) |
296 | Fsignal (Qmark_inactive, Qnil); | |
177c0ea7 | 297 | |
35692fe0 | 298 | m = Fmarker_position (current_buffer->mark); |
acb7cc89 | 299 | if (NILP (m)) |
7b5ad687 | 300 | error ("The mark is not set now, so there is no region"); |
177c0ea7 | 301 | |
2063d89c | 302 | if ((PT < XFASTINT (m)) == (beginningp != 0)) |
acb7cc89 GM |
303 | m = make_number (PT); |
304 | return m; | |
35692fe0 JB |
305 | } |
306 | ||
307 | DEFUN ("region-beginning", Fregion_beginning, Sregion_beginning, 0, 0, 0, | |
7ee72033 MB |
308 | doc: /* Return position of beginning of region, as an integer. */) |
309 | () | |
35692fe0 | 310 | { |
acb7cc89 | 311 | return region_limit (1); |
35692fe0 JB |
312 | } |
313 | ||
314 | DEFUN ("region-end", Fregion_end, Sregion_end, 0, 0, 0, | |
7ee72033 MB |
315 | doc: /* Return position of end of region, as an integer. */) |
316 | () | |
35692fe0 | 317 | { |
acb7cc89 | 318 | return region_limit (0); |
35692fe0 JB |
319 | } |
320 | ||
35692fe0 | 321 | DEFUN ("mark-marker", Fmark_marker, Smark_marker, 0, 0, 0, |
7ee72033 | 322 | doc: /* Return this buffer's mark, as a marker object. |
a1f17501 | 323 | Watch out! Moving this marker changes the mark position. |
7ee72033 MB |
324 | If you set the marker not to point anywhere, the buffer will have no mark. */) |
325 | () | |
35692fe0 JB |
326 | { |
327 | return current_buffer->mark; | |
328 | } | |
acb7cc89 | 329 | |
c9ed721d | 330 | \f |
58401a34 SM |
331 | /* Find all the overlays in the current buffer that touch position POS. |
332 | Return the number found, and store them in a vector in VEC | |
333 | of length LEN. */ | |
334 | ||
335 | static int | |
336 | overlays_around (pos, vec, len) | |
337 | int pos; | |
338 | Lisp_Object *vec; | |
339 | int len; | |
340 | { | |
88006f77 SM |
341 | Lisp_Object overlay, start, end; |
342 | struct Lisp_Overlay *tail; | |
58401a34 SM |
343 | int startpos, endpos; |
344 | int idx = 0; | |
345 | ||
88006f77 | 346 | for (tail = current_buffer->overlays_before; tail; tail = tail->next) |
58401a34 | 347 | { |
88006f77 | 348 | XSETMISC (overlay, tail); |
58401a34 SM |
349 | |
350 | end = OVERLAY_END (overlay); | |
351 | endpos = OVERLAY_POSITION (end); | |
352 | if (endpos < pos) | |
353 | break; | |
354 | start = OVERLAY_START (overlay); | |
355 | startpos = OVERLAY_POSITION (start); | |
356 | if (startpos <= pos) | |
357 | { | |
358 | if (idx < len) | |
359 | vec[idx] = overlay; | |
360 | /* Keep counting overlays even if we can't return them all. */ | |
361 | idx++; | |
362 | } | |
363 | } | |
364 | ||
88006f77 | 365 | for (tail = current_buffer->overlays_after; tail; tail = tail->next) |
58401a34 | 366 | { |
88006f77 | 367 | XSETMISC (overlay, tail); |
58401a34 SM |
368 | |
369 | start = OVERLAY_START (overlay); | |
370 | startpos = OVERLAY_POSITION (start); | |
371 | if (pos < startpos) | |
372 | break; | |
373 | end = OVERLAY_END (overlay); | |
374 | endpos = OVERLAY_POSITION (end); | |
375 | if (pos <= endpos) | |
376 | { | |
377 | if (idx < len) | |
378 | vec[idx] = overlay; | |
379 | idx++; | |
380 | } | |
381 | } | |
382 | ||
383 | return idx; | |
384 | } | |
385 | ||
386 | /* Return the value of property PROP, in OBJECT at POSITION. | |
387 | It's the value of PROP that a char inserted at POSITION would get. | |
388 | OBJECT is optional and defaults to the current buffer. | |
389 | If OBJECT is a buffer, then overlay properties are considered as well as | |
390 | text properties. | |
391 | If OBJECT is a window, then that window's buffer is used, but | |
392 | window-specific overlays are considered only if they are associated | |
393 | with OBJECT. */ | |
538f9462 | 394 | Lisp_Object |
58401a34 SM |
395 | get_pos_property (position, prop, object) |
396 | Lisp_Object position, object; | |
397 | register Lisp_Object prop; | |
398 | { | |
58401a34 SM |
399 | CHECK_NUMBER_COERCE_MARKER (position); |
400 | ||
401 | if (NILP (object)) | |
402 | XSETBUFFER (object, current_buffer); | |
dfe6cbf8 SM |
403 | else if (WINDOWP (object)) |
404 | object = XWINDOW (object)->buffer; | |
405 | ||
406 | if (!BUFFERP (object)) | |
407 | /* pos-property only makes sense in buffers right now, since strings | |
408 | have no overlays and no notion of insertion for which stickiness | |
409 | could be obeyed. */ | |
410 | return Fget_text_property (position, prop, object); | |
411 | else | |
58401a34 SM |
412 | { |
413 | int posn = XINT (position); | |
414 | int noverlays; | |
415 | Lisp_Object *overlay_vec, tem; | |
416 | struct buffer *obuf = current_buffer; | |
417 | ||
418 | set_buffer_temp (XBUFFER (object)); | |
419 | ||
420 | /* First try with room for 40 overlays. */ | |
421 | noverlays = 40; | |
422 | overlay_vec = (Lisp_Object *) alloca (noverlays * sizeof (Lisp_Object)); | |
423 | noverlays = overlays_around (posn, overlay_vec, noverlays); | |
424 | ||
425 | /* If there are more than 40, | |
426 | make enough space for all, and try again. */ | |
427 | if (noverlays > 40) | |
428 | { | |
429 | overlay_vec = (Lisp_Object *) alloca (noverlays * sizeof (Lisp_Object)); | |
430 | noverlays = overlays_around (posn, overlay_vec, noverlays); | |
431 | } | |
432 | noverlays = sort_overlays (overlay_vec, noverlays, NULL); | |
433 | ||
434 | set_buffer_temp (obuf); | |
435 | ||
436 | /* Now check the overlays in order of decreasing priority. */ | |
437 | while (--noverlays >= 0) | |
438 | { | |
439 | Lisp_Object ol = overlay_vec[noverlays]; | |
440 | tem = Foverlay_get (ol, prop); | |
441 | if (!NILP (tem)) | |
442 | { | |
443 | /* Check the overlay is indeed active at point. */ | |
444 | Lisp_Object start = OVERLAY_START (ol), finish = OVERLAY_END (ol); | |
445 | if ((OVERLAY_POSITION (start) == posn | |
446 | && XMARKER (start)->insertion_type == 1) | |
447 | || (OVERLAY_POSITION (finish) == posn | |
448 | && XMARKER (finish)->insertion_type == 0)) | |
449 | ; /* The overlay will not cover a char inserted at point. */ | |
450 | else | |
451 | { | |
452 | return tem; | |
453 | } | |
454 | } | |
455 | } | |
177c0ea7 | 456 | |
dfe6cbf8 SM |
457 | { /* Now check the text-properties. */ |
458 | int stickiness = text_property_stickiness (prop, position, object); | |
459 | if (stickiness > 0) | |
460 | return Fget_text_property (position, prop, object); | |
461 | else if (stickiness < 0 | |
462 | && XINT (position) > BUF_BEGV (XBUFFER (object))) | |
463 | return Fget_text_property (make_number (XINT (position) - 1), | |
464 | prop, object); | |
465 | else | |
466 | return Qnil; | |
467 | } | |
58401a34 | 468 | } |
58401a34 SM |
469 | } |
470 | ||
a3caef99 | 471 | /* Find the field surrounding POS in *BEG and *END. If POS is nil, |
acb7cc89 GM |
472 | the value of point is used instead. If BEG or END null, |
473 | means don't store the beginning or end of the field. | |
a3caef99 | 474 | |
9ac741c5 MB |
475 | BEG_LIMIT and END_LIMIT serve to limit the ranged of the returned |
476 | results; they do not effect boundary behavior. | |
477 | ||
a3caef99 | 478 | If MERGE_AT_BOUNDARY is nonzero, then if POS is at the very first |
ee547125 MB |
479 | position of a field, then the beginning of the previous field is |
480 | returned instead of the beginning of POS's field (since the end of a | |
481 | field is actually also the beginning of the next input field, this | |
482 | behavior is sometimes useful). Additionally in the MERGE_AT_BOUNDARY | |
483 | true case, if two fields are separated by a field with the special | |
484 | value `boundary', and POS lies within it, then the two separated | |
485 | fields are considered to be adjacent, and POS between them, when | |
486 | finding the beginning and ending of the "merged" field. | |
a3caef99 RS |
487 | |
488 | Either BEG or END may be 0, in which case the corresponding value | |
489 | is not stored. */ | |
490 | ||
acb7cc89 | 491 | static void |
9ac741c5 | 492 | find_field (pos, merge_at_boundary, beg_limit, beg, end_limit, end) |
0daf6e8d GM |
493 | Lisp_Object pos; |
494 | Lisp_Object merge_at_boundary; | |
9ac741c5 | 495 | Lisp_Object beg_limit, end_limit; |
0daf6e8d GM |
496 | int *beg, *end; |
497 | { | |
ee547125 MB |
498 | /* Fields right before and after the point. */ |
499 | Lisp_Object before_field, after_field; | |
a3caef99 RS |
500 | /* 1 if POS counts as the start of a field. */ |
501 | int at_field_start = 0; | |
502 | /* 1 if POS counts as the end of a field. */ | |
503 | int at_field_end = 0; | |
ee547125 | 504 | |
0daf6e8d GM |
505 | if (NILP (pos)) |
506 | XSETFASTINT (pos, PT); | |
507 | else | |
b7826503 | 508 | CHECK_NUMBER_COERCE_MARKER (pos); |
0daf6e8d | 509 | |
acb7cc89 | 510 | after_field |
58401a34 | 511 | = get_char_property_and_overlay (pos, Qfield, Qnil, NULL); |
acb7cc89 GM |
512 | before_field |
513 | = (XFASTINT (pos) > BEGV | |
7ae1c032 | 514 | ? get_char_property_and_overlay (make_number (XINT (pos) - 1), |
58401a34 | 515 | Qfield, Qnil, NULL) |
acb7cc89 | 516 | : Qnil); |
ee547125 MB |
517 | |
518 | /* See if we need to handle the case where MERGE_AT_BOUNDARY is nil | |
519 | and POS is at beginning of a field, which can also be interpreted | |
520 | as the end of the previous field. Note that the case where if | |
521 | MERGE_AT_BOUNDARY is non-nil (see function comment) is actually the | |
522 | more natural one; then we avoid treating the beginning of a field | |
523 | specially. */ | |
58401a34 | 524 | if (NILP (merge_at_boundary)) |
ee547125 | 525 | { |
58401a34 SM |
526 | Lisp_Object field = get_pos_property (pos, Qfield, Qnil); |
527 | if (!EQ (field, after_field)) | |
ee547125 | 528 | at_field_end = 1; |
58401a34 SM |
529 | if (!EQ (field, before_field)) |
530 | at_field_start = 1; | |
2db1186a SM |
531 | if (NILP (field) && at_field_start && at_field_end) |
532 | /* If an inserted char would have a nil field while the surrounding | |
533 | text is non-nil, we're probably not looking at a | |
534 | zero-length field, but instead at a non-nil field that's | |
535 | not intended for editing (such as comint's prompts). */ | |
536 | at_field_end = at_field_start = 0; | |
0daf6e8d GM |
537 | } |
538 | ||
ee547125 MB |
539 | /* Note about special `boundary' fields: |
540 | ||
541 | Consider the case where the point (`.') is between the fields `x' and `y': | |
542 | ||
543 | xxxx.yyyy | |
544 | ||
545 | In this situation, if merge_at_boundary is true, we consider the | |
546 | `x' and `y' fields as forming one big merged field, and so the end | |
547 | of the field is the end of `y'. | |
548 | ||
549 | However, if `x' and `y' are separated by a special `boundary' field | |
550 | (a field with a `field' char-property of 'boundary), then we ignore | |
551 | this special field when merging adjacent fields. Here's the same | |
552 | situation, but with a `boundary' field between the `x' and `y' fields: | |
553 | ||
554 | xxx.BBBByyyy | |
555 | ||
556 | Here, if point is at the end of `x', the beginning of `y', or | |
557 | anywhere in-between (within the `boundary' field), we merge all | |
558 | three fields and consider the beginning as being the beginning of | |
559 | the `x' field, and the end as being the end of the `y' field. */ | |
560 | ||
0daf6e8d | 561 | if (beg) |
acb7cc89 GM |
562 | { |
563 | if (at_field_start) | |
564 | /* POS is at the edge of a field, and we should consider it as | |
565 | the beginning of the following field. */ | |
566 | *beg = XFASTINT (pos); | |
567 | else | |
568 | /* Find the previous field boundary. */ | |
569 | { | |
58401a34 | 570 | Lisp_Object p = pos; |
acb7cc89 GM |
571 | if (!NILP (merge_at_boundary) && EQ (before_field, Qboundary)) |
572 | /* Skip a `boundary' field. */ | |
58401a34 | 573 | p = Fprevious_single_char_property_change (p, Qfield, Qnil, |
9ac741c5 | 574 | beg_limit); |
58401a34 SM |
575 | |
576 | p = Fprevious_single_char_property_change (p, Qfield, Qnil, | |
577 | beg_limit); | |
578 | *beg = NILP (p) ? BEGV : XFASTINT (p); | |
acb7cc89 GM |
579 | } |
580 | } | |
0daf6e8d GM |
581 | |
582 | if (end) | |
acb7cc89 GM |
583 | { |
584 | if (at_field_end) | |
585 | /* POS is at the edge of a field, and we should consider it as | |
586 | the end of the previous field. */ | |
587 | *end = XFASTINT (pos); | |
588 | else | |
589 | /* Find the next field boundary. */ | |
590 | { | |
591 | if (!NILP (merge_at_boundary) && EQ (after_field, Qboundary)) | |
592 | /* Skip a `boundary' field. */ | |
9ac741c5 MB |
593 | pos = Fnext_single_char_property_change (pos, Qfield, Qnil, |
594 | end_limit); | |
ee547125 | 595 | |
9ac741c5 MB |
596 | pos = Fnext_single_char_property_change (pos, Qfield, Qnil, |
597 | end_limit); | |
acb7cc89 GM |
598 | *end = NILP (pos) ? ZV : XFASTINT (pos); |
599 | } | |
600 | } | |
0daf6e8d | 601 | } |
acb7cc89 | 602 | |
0daf6e8d | 603 | \f |
d01f3570 | 604 | DEFUN ("delete-field", Fdelete_field, Sdelete_field, 0, 1, 0, |
7ee72033 | 605 | doc: /* Delete the field surrounding POS. |
a1f17501 | 606 | A field is a region of text with the same `field' property. |
7ee72033 MB |
607 | If POS is nil, the value of point is used for POS. */) |
608 | (pos) | |
0daf6e8d GM |
609 | Lisp_Object pos; |
610 | { | |
611 | int beg, end; | |
9ac741c5 | 612 | find_field (pos, Qnil, Qnil, &beg, Qnil, &end); |
0daf6e8d GM |
613 | if (beg != end) |
614 | del_range (beg, end); | |
d01f3570 | 615 | return Qnil; |
0daf6e8d GM |
616 | } |
617 | ||
618 | DEFUN ("field-string", Ffield_string, Sfield_string, 0, 1, 0, | |
7ee72033 | 619 | doc: /* Return the contents of the field surrounding POS as a string. |
a1f17501 | 620 | A field is a region of text with the same `field' property. |
7ee72033 MB |
621 | If POS is nil, the value of point is used for POS. */) |
622 | (pos) | |
0daf6e8d GM |
623 | Lisp_Object pos; |
624 | { | |
625 | int beg, end; | |
9ac741c5 | 626 | find_field (pos, Qnil, Qnil, &beg, Qnil, &end); |
0daf6e8d GM |
627 | return make_buffer_string (beg, end, 1); |
628 | } | |
629 | ||
630 | DEFUN ("field-string-no-properties", Ffield_string_no_properties, Sfield_string_no_properties, 0, 1, 0, | |
7ee72033 | 631 | doc: /* Return the contents of the field around POS, without text-properties. |
a1f17501 | 632 | A field is a region of text with the same `field' property. |
7ee72033 MB |
633 | If POS is nil, the value of point is used for POS. */) |
634 | (pos) | |
0daf6e8d GM |
635 | Lisp_Object pos; |
636 | { | |
637 | int beg, end; | |
9ac741c5 | 638 | find_field (pos, Qnil, Qnil, &beg, Qnil, &end); |
0daf6e8d GM |
639 | return make_buffer_string (beg, end, 0); |
640 | } | |
641 | ||
9ac741c5 | 642 | DEFUN ("field-beginning", Ffield_beginning, Sfield_beginning, 0, 3, 0, |
7ee72033 | 643 | doc: /* Return the beginning of the field surrounding POS. |
a1f17501 PJ |
644 | A field is a region of text with the same `field' property. |
645 | If POS is nil, the value of point is used for POS. | |
646 | If ESCAPE-FROM-EDGE is non-nil and POS is at the beginning of its | |
9ac741c5 MB |
647 | field, then the beginning of the *previous* field is returned. |
648 | If LIMIT is non-nil, it is a buffer position; if the beginning of the field | |
649 | is before LIMIT, then LIMIT will be returned instead. */) | |
650 | (pos, escape_from_edge, limit) | |
651 | Lisp_Object pos, escape_from_edge, limit; | |
0daf6e8d GM |
652 | { |
653 | int beg; | |
9ac741c5 | 654 | find_field (pos, escape_from_edge, limit, &beg, Qnil, 0); |
0daf6e8d GM |
655 | return make_number (beg); |
656 | } | |
657 | ||
9ac741c5 | 658 | DEFUN ("field-end", Ffield_end, Sfield_end, 0, 3, 0, |
7ee72033 | 659 | doc: /* Return the end of the field surrounding POS. |
a1f17501 PJ |
660 | A field is a region of text with the same `field' property. |
661 | If POS is nil, the value of point is used for POS. | |
662 | If ESCAPE-FROM-EDGE is non-nil and POS is at the end of its field, | |
9ac741c5 MB |
663 | then the end of the *following* field is returned. |
664 | If LIMIT is non-nil, it is a buffer position; if the end of the field | |
665 | is after LIMIT, then LIMIT will be returned instead. */) | |
666 | (pos, escape_from_edge, limit) | |
667 | Lisp_Object pos, escape_from_edge, limit; | |
0daf6e8d GM |
668 | { |
669 | int end; | |
9ac741c5 | 670 | find_field (pos, escape_from_edge, Qnil, 0, limit, &end); |
0daf6e8d GM |
671 | return make_number (end); |
672 | } | |
673 | ||
ee547125 | 674 | DEFUN ("constrain-to-field", Fconstrain_to_field, Sconstrain_to_field, 2, 5, 0, |
7ee72033 | 675 | doc: /* Return the position closest to NEW-POS that is in the same field as OLD-POS. |
a1f17501 PJ |
676 | |
677 | A field is a region of text with the same `field' property. | |
678 | If NEW-POS is nil, then the current point is used instead, and set to the | |
679 | constrained position if that is different. | |
680 | ||
681 | If OLD-POS is at the boundary of two fields, then the allowable | |
682 | positions for NEW-POS depends on the value of the optional argument | |
683 | ESCAPE-FROM-EDGE: If ESCAPE-FROM-EDGE is nil, then NEW-POS is | |
684 | constrained to the field that has the same `field' char-property | |
685 | as any new characters inserted at OLD-POS, whereas if ESCAPE-FROM-EDGE | |
686 | is non-nil, NEW-POS is constrained to the union of the two adjacent | |
687 | fields. Additionally, if two fields are separated by another field with | |
688 | the special value `boundary', then any point within this special field is | |
689 | also considered to be `on the boundary'. | |
690 | ||
691 | If the optional argument ONLY-IN-LINE is non-nil and constraining | |
692 | NEW-POS would move it to a different line, NEW-POS is returned | |
693 | unconstrained. This useful for commands that move by line, like | |
694 | \\[next-line] or \\[beginning-of-line], which should generally respect field boundaries | |
695 | only in the case where they can still move to the right line. | |
696 | ||
697 | If the optional argument INHIBIT-CAPTURE-PROPERTY is non-nil, and OLD-POS has | |
698 | a non-nil property of that name, then any field boundaries are ignored. | |
699 | ||
7ee72033 MB |
700 | Field boundaries are not noticed if `inhibit-field-text-motion' is non-nil. */) |
701 | (new_pos, old_pos, escape_from_edge, only_in_line, inhibit_capture_property) | |
ee547125 MB |
702 | Lisp_Object new_pos, old_pos; |
703 | Lisp_Object escape_from_edge, only_in_line, inhibit_capture_property; | |
0daf6e8d GM |
704 | { |
705 | /* If non-zero, then the original point, before re-positioning. */ | |
706 | int orig_point = 0; | |
707 | ||
708 | if (NILP (new_pos)) | |
709 | /* Use the current point, and afterwards, set it. */ | |
710 | { | |
711 | orig_point = PT; | |
712 | XSETFASTINT (new_pos, PT); | |
713 | } | |
714 | ||
ee5cd4db GM |
715 | if (NILP (Vinhibit_field_text_motion) |
716 | && !EQ (new_pos, old_pos) | |
f657bbf6 MB |
717 | && (!NILP (Fget_char_property (new_pos, Qfield, Qnil)) |
718 | || !NILP (Fget_char_property (old_pos, Qfield, Qnil))) | |
ee547125 MB |
719 | && (NILP (inhibit_capture_property) |
720 | || NILP (Fget_char_property(old_pos, inhibit_capture_property, Qnil)))) | |
0daf6e8d GM |
721 | /* NEW_POS is not within the same field as OLD_POS; try to |
722 | move NEW_POS so that it is. */ | |
723 | { | |
ee547125 | 724 | int fwd, shortage; |
0daf6e8d GM |
725 | Lisp_Object field_bound; |
726 | ||
b7826503 PJ |
727 | CHECK_NUMBER_COERCE_MARKER (new_pos); |
728 | CHECK_NUMBER_COERCE_MARKER (old_pos); | |
0daf6e8d GM |
729 | |
730 | fwd = (XFASTINT (new_pos) > XFASTINT (old_pos)); | |
731 | ||
732 | if (fwd) | |
9ac741c5 | 733 | field_bound = Ffield_end (old_pos, escape_from_edge, new_pos); |
0daf6e8d | 734 | else |
9ac741c5 | 735 | field_bound = Ffield_beginning (old_pos, escape_from_edge, new_pos); |
0daf6e8d | 736 | |
10b0f752 MB |
737 | if (/* See if ESCAPE_FROM_EDGE caused FIELD_BOUND to jump to the |
738 | other side of NEW_POS, which would mean that NEW_POS is | |
739 | already acceptable, and it's not necessary to constrain it | |
740 | to FIELD_BOUND. */ | |
741 | ((XFASTINT (field_bound) < XFASTINT (new_pos)) ? fwd : !fwd) | |
742 | /* NEW_POS should be constrained, but only if either | |
743 | ONLY_IN_LINE is nil (in which case any constraint is OK), | |
744 | or NEW_POS and FIELD_BOUND are on the same line (in which | |
745 | case the constraint is OK even if ONLY_IN_LINE is non-nil). */ | |
746 | && (NILP (only_in_line) | |
747 | /* This is the ONLY_IN_LINE case, check that NEW_POS and | |
748 | FIELD_BOUND are on the same line by seeing whether | |
749 | there's an intervening newline or not. */ | |
750 | || (scan_buffer ('\n', | |
751 | XFASTINT (new_pos), XFASTINT (field_bound), | |
752 | fwd ? -1 : 1, &shortage, 1), | |
753 | shortage != 0))) | |
0daf6e8d GM |
754 | /* Constrain NEW_POS to FIELD_BOUND. */ |
755 | new_pos = field_bound; | |
756 | ||
757 | if (orig_point && XFASTINT (new_pos) != orig_point) | |
758 | /* The NEW_POS argument was originally nil, so automatically set PT. */ | |
759 | SET_PT (XFASTINT (new_pos)); | |
760 | } | |
761 | ||
762 | return new_pos; | |
763 | } | |
acb7cc89 | 764 | |
0daf6e8d | 765 | \f |
6d57c318 MB |
766 | DEFUN ("line-beginning-position", |
767 | Fline_beginning_position, Sline_beginning_position, 0, 1, 0, | |
7ee72033 | 768 | doc: /* Return the character position of the first character on the current line. |
a1f17501 PJ |
769 | With argument N not nil or 1, move forward N - 1 lines first. |
770 | If scan reaches end of buffer, return that position. | |
6d57c318 MB |
771 | |
772 | The scan does not cross a field boundary unless doing so would move | |
773 | beyond there to a different line; if N is nil or 1, and scan starts at a | |
774 | field boundary, the scan stops as soon as it starts. To ignore field | |
775 | boundaries bind `inhibit-field-text-motion' to t. | |
a1f17501 | 776 | |
7ee72033 MB |
777 | This function does not move point. */) |
778 | (n) | |
c9ed721d RS |
779 | Lisp_Object n; |
780 | { | |
acb7cc89 | 781 | int orig, orig_byte, end; |
c9ed721d RS |
782 | |
783 | if (NILP (n)) | |
784 | XSETFASTINT (n, 1); | |
785 | else | |
b7826503 | 786 | CHECK_NUMBER (n); |
c9ed721d RS |
787 | |
788 | orig = PT; | |
ec1c14f6 | 789 | orig_byte = PT_BYTE; |
c9ed721d RS |
790 | Fforward_line (make_number (XINT (n) - 1)); |
791 | end = PT; | |
e2dae3f2 | 792 | |
ec1c14f6 | 793 | SET_PT_BOTH (orig, orig_byte); |
35692fe0 | 794 | |
0daf6e8d | 795 | /* Return END constrained to the current input field. */ |
ee5cd4db GM |
796 | return Fconstrain_to_field (make_number (end), make_number (orig), |
797 | XINT (n) != 1 ? Qt : Qnil, | |
ee547125 | 798 | Qt, Qnil); |
c9ed721d RS |
799 | } |
800 | ||
6d57c318 | 801 | DEFUN ("line-end-position", Fline_end_position, Sline_end_position, 0, 1, 0, |
7ee72033 | 802 | doc: /* Return the character position of the last character on the current line. |
a1f17501 PJ |
803 | With argument N not nil or 1, move forward N - 1 lines first. |
804 | If scan reaches end of buffer, return that position. | |
6d57c318 MB |
805 | |
806 | The scan does not cross a field boundary unless doing so would move | |
807 | beyond there to a different line; if N is nil or 1, and scan starts at a | |
808 | field boundary, the scan stops as soon as it starts. To ignore field | |
809 | boundaries bind `inhibit-field-text-motion' to t. | |
810 | ||
7ee72033 MB |
811 | This function does not move point. */) |
812 | (n) | |
c9ed721d RS |
813 | Lisp_Object n; |
814 | { | |
0daf6e8d | 815 | int end_pos; |
acb7cc89 | 816 | int orig = PT; |
0daf6e8d | 817 | |
c9ed721d RS |
818 | if (NILP (n)) |
819 | XSETFASTINT (n, 1); | |
820 | else | |
b7826503 | 821 | CHECK_NUMBER (n); |
c9ed721d | 822 | |
0daf6e8d GM |
823 | end_pos = find_before_next_newline (orig, 0, XINT (n) - (XINT (n) <= 0)); |
824 | ||
825 | /* Return END_POS constrained to the current input field. */ | |
ee5cd4db | 826 | return Fconstrain_to_field (make_number (end_pos), make_number (orig), |
ee547125 | 827 | Qnil, Qt, Qnil); |
c9ed721d | 828 | } |
6d57c318 | 829 | |
c9ed721d | 830 | \f |
35692fe0 JB |
831 | Lisp_Object |
832 | save_excursion_save () | |
833 | { | |
acb7cc89 GM |
834 | int visible = (XBUFFER (XWINDOW (selected_window)->buffer) |
835 | == current_buffer); | |
35692fe0 JB |
836 | |
837 | return Fcons (Fpoint_marker (), | |
aea4a109 | 838 | Fcons (Fcopy_marker (current_buffer->mark, Qnil), |
9772455e | 839 | Fcons (visible ? Qt : Qnil, |
2483cf58 GM |
840 | Fcons (current_buffer->mark_active, |
841 | selected_window)))); | |
35692fe0 JB |
842 | } |
843 | ||
844 | Lisp_Object | |
845 | save_excursion_restore (info) | |
4ad8681a | 846 | Lisp_Object info; |
35692fe0 | 847 | { |
4ad8681a RS |
848 | Lisp_Object tem, tem1, omark, nmark; |
849 | struct gcpro gcpro1, gcpro2, gcpro3; | |
2483cf58 | 850 | int visible_p; |
35692fe0 | 851 | |
2483cf58 | 852 | tem = Fmarker_buffer (XCAR (info)); |
35692fe0 JB |
853 | /* If buffer being returned to is now deleted, avoid error */ |
854 | /* Otherwise could get error here while unwinding to top level | |
855 | and crash */ | |
856 | /* In that case, Fmarker_buffer returns nil now. */ | |
56a98455 | 857 | if (NILP (tem)) |
35692fe0 | 858 | return Qnil; |
4ad8681a RS |
859 | |
860 | omark = nmark = Qnil; | |
861 | GCPRO3 (info, omark, nmark); | |
862 | ||
35692fe0 | 863 | Fset_buffer (tem); |
2483cf58 GM |
864 | |
865 | /* Point marker. */ | |
866 | tem = XCAR (info); | |
35692fe0 | 867 | Fgoto_char (tem); |
12038f9f | 868 | unchain_marker (XMARKER (tem)); |
2483cf58 GM |
869 | |
870 | /* Mark marker. */ | |
871 | info = XCDR (info); | |
872 | tem = XCAR (info); | |
03d18690 | 873 | omark = Fmarker_position (current_buffer->mark); |
35692fe0 | 874 | Fset_marker (current_buffer->mark, tem, Fcurrent_buffer ()); |
03d18690 | 875 | nmark = Fmarker_position (tem); |
12038f9f | 876 | unchain_marker (XMARKER (tem)); |
2483cf58 GM |
877 | |
878 | /* visible */ | |
879 | info = XCDR (info); | |
880 | visible_p = !NILP (XCAR (info)); | |
177c0ea7 | 881 | |
ef580991 RS |
882 | #if 0 /* We used to make the current buffer visible in the selected window |
883 | if that was true previously. That avoids some anomalies. | |
884 | But it creates others, and it wasn't documented, and it is simpler | |
885 | and cleaner never to alter the window/buffer connections. */ | |
9772455e RS |
886 | tem1 = Fcar (tem); |
887 | if (!NILP (tem1) | |
0e2c9c70 | 888 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) |
35692fe0 | 889 | Fswitch_to_buffer (Fcurrent_buffer (), Qnil); |
ef580991 | 890 | #endif /* 0 */ |
9772455e | 891 | |
2483cf58 GM |
892 | /* Mark active */ |
893 | info = XCDR (info); | |
894 | tem = XCAR (info); | |
9772455e | 895 | tem1 = current_buffer->mark_active; |
2483cf58 GM |
896 | current_buffer->mark_active = tem; |
897 | ||
9fed2b18 RS |
898 | if (!NILP (Vrun_hooks)) |
899 | { | |
03d18690 RS |
900 | /* If mark is active now, and either was not active |
901 | or was at a different place, run the activate hook. */ | |
9fed2b18 | 902 | if (! NILP (current_buffer->mark_active)) |
03d18690 RS |
903 | { |
904 | if (! EQ (omark, nmark)) | |
905 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
906 | } | |
907 | /* If mark has ceased to be active, run deactivate hook. */ | |
9fed2b18 RS |
908 | else if (! NILP (tem1)) |
909 | call1 (Vrun_hooks, intern ("deactivate-mark-hook")); | |
910 | } | |
2483cf58 GM |
911 | |
912 | /* If buffer was visible in a window, and a different window was | |
793cd2c8 GM |
913 | selected, and the old selected window is still showing this |
914 | buffer, restore point in that window. */ | |
2483cf58 GM |
915 | tem = XCDR (info); |
916 | if (visible_p | |
917 | && !EQ (tem, selected_window) | |
ba973f7a GM |
918 | && (tem1 = XWINDOW (tem)->buffer, |
919 | (/* Window is live... */ | |
920 | BUFFERP (tem1) | |
921 | /* ...and it shows the current buffer. */ | |
922 | && XBUFFER (tem1) == current_buffer))) | |
2483cf58 GM |
923 | Fset_window_point (tem, make_number (PT)); |
924 | ||
4ad8681a | 925 | UNGCPRO; |
35692fe0 JB |
926 | return Qnil; |
927 | } | |
928 | ||
929 | DEFUN ("save-excursion", Fsave_excursion, Ssave_excursion, 0, UNEVALLED, 0, | |
7ee72033 | 930 | doc: /* Save point, mark, and current buffer; execute BODY; restore those things. |
a1f17501 PJ |
931 | Executes BODY just like `progn'. |
932 | The values of point, mark and the current buffer are restored | |
933 | even in case of abnormal exit (throw or error). | |
934 | The state of activation of the mark is also restored. | |
935 | ||
936 | This construct does not save `deactivate-mark', and therefore | |
937 | functions that change the buffer will still cause deactivation | |
938 | of the mark at the end of the command. To prevent that, bind | |
33c2d29f MB |
939 | `deactivate-mark' with `let'. |
940 | ||
941 | usage: (save-excursion &rest BODY) */) | |
7ee72033 | 942 | (args) |
35692fe0 JB |
943 | Lisp_Object args; |
944 | { | |
945 | register Lisp_Object val; | |
aed13378 | 946 | int count = SPECPDL_INDEX (); |
35692fe0 JB |
947 | |
948 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
4bc8c7d2 RS |
949 | |
950 | val = Fprogn (args); | |
951 | return unbind_to (count, val); | |
952 | } | |
953 | ||
954 | DEFUN ("save-current-buffer", Fsave_current_buffer, Ssave_current_buffer, 0, UNEVALLED, 0, | |
7ee72033 | 955 | doc: /* Save the current buffer; execute BODY; restore the current buffer. |
33c2d29f MB |
956 | Executes BODY just like `progn'. |
957 | usage: (save-current-buffer &rest BODY) */) | |
7ee72033 | 958 | (args) |
4bc8c7d2 RS |
959 | Lisp_Object args; |
960 | { | |
acb7cc89 | 961 | Lisp_Object val; |
aed13378 | 962 | int count = SPECPDL_INDEX (); |
4bc8c7d2 | 963 | |
cb5e5f74 | 964 | record_unwind_protect (set_buffer_if_live, Fcurrent_buffer ()); |
4bc8c7d2 | 965 | |
35692fe0 JB |
966 | val = Fprogn (args); |
967 | return unbind_to (count, val); | |
968 | } | |
969 | \f | |
95dccf75 | 970 | DEFUN ("buffer-size", Fbufsize, Sbufsize, 0, 1, 0, |
7ee72033 MB |
971 | doc: /* Return the number of characters in the current buffer. |
972 | If BUFFER, return the number of characters in that buffer instead. */) | |
973 | (buffer) | |
95dccf75 | 974 | Lisp_Object buffer; |
35692fe0 | 975 | { |
95dccf75 RS |
976 | if (NILP (buffer)) |
977 | return make_number (Z - BEG); | |
02050596 RS |
978 | else |
979 | { | |
b7826503 | 980 | CHECK_BUFFER (buffer); |
02050596 RS |
981 | return make_number (BUF_Z (XBUFFER (buffer)) |
982 | - BUF_BEG (XBUFFER (buffer))); | |
983 | } | |
35692fe0 JB |
984 | } |
985 | ||
986 | DEFUN ("point-min", Fpoint_min, Spoint_min, 0, 0, 0, | |
7ee72033 MB |
987 | doc: /* Return the minimum permissible value of point in the current buffer. |
988 | This is 1, unless narrowing (a buffer restriction) is in effect. */) | |
989 | () | |
35692fe0 JB |
990 | { |
991 | Lisp_Object temp; | |
55561c63 | 992 | XSETFASTINT (temp, BEGV); |
35692fe0 JB |
993 | return temp; |
994 | } | |
995 | ||
996 | DEFUN ("point-min-marker", Fpoint_min_marker, Spoint_min_marker, 0, 0, 0, | |
7ee72033 MB |
997 | doc: /* Return a marker to the minimum permissible value of point in this buffer. |
998 | This is the beginning, unless narrowing (a buffer restriction) is in effect. */) | |
999 | () | |
35692fe0 | 1000 | { |
ec1c14f6 | 1001 | return buildmark (BEGV, BEGV_BYTE); |
35692fe0 JB |
1002 | } |
1003 | ||
1004 | DEFUN ("point-max", Fpoint_max, Spoint_max, 0, 0, 0, | |
7ee72033 | 1005 | doc: /* Return the maximum permissible value of point in the current buffer. |
a1f17501 | 1006 | This is (1+ (buffer-size)), unless narrowing (a buffer restriction) |
7ee72033 MB |
1007 | is in effect, in which case it is less. */) |
1008 | () | |
35692fe0 JB |
1009 | { |
1010 | Lisp_Object temp; | |
55561c63 | 1011 | XSETFASTINT (temp, ZV); |
35692fe0 JB |
1012 | return temp; |
1013 | } | |
1014 | ||
1015 | DEFUN ("point-max-marker", Fpoint_max_marker, Spoint_max_marker, 0, 0, 0, | |
7ee72033 | 1016 | doc: /* Return a marker to the maximum permissible value of point in this buffer. |
a1f17501 | 1017 | This is (1+ (buffer-size)), unless narrowing (a buffer restriction) |
7ee72033 MB |
1018 | is in effect, in which case it is less. */) |
1019 | () | |
35692fe0 | 1020 | { |
ec1c14f6 | 1021 | return buildmark (ZV, ZV_BYTE); |
35692fe0 JB |
1022 | } |
1023 | ||
c86212b9 | 1024 | DEFUN ("gap-position", Fgap_position, Sgap_position, 0, 0, 0, |
7ee72033 MB |
1025 | doc: /* Return the position of the gap, in the current buffer. |
1026 | See also `gap-size'. */) | |
1027 | () | |
c86212b9 RS |
1028 | { |
1029 | Lisp_Object temp; | |
1030 | XSETFASTINT (temp, GPT); | |
1031 | return temp; | |
1032 | } | |
1033 | ||
1034 | DEFUN ("gap-size", Fgap_size, Sgap_size, 0, 0, 0, | |
7ee72033 MB |
1035 | doc: /* Return the size of the current buffer's gap. |
1036 | See also `gap-position'. */) | |
1037 | () | |
c86212b9 RS |
1038 | { |
1039 | Lisp_Object temp; | |
1040 | XSETFASTINT (temp, GAP_SIZE); | |
1041 | return temp; | |
1042 | } | |
1043 | ||
7df74da6 | 1044 | DEFUN ("position-bytes", Fposition_bytes, Sposition_bytes, 1, 1, 0, |
7ee72033 MB |
1045 | doc: /* Return the byte position for character position POSITION. |
1046 | If POSITION is out of range, the value is nil. */) | |
1047 | (position) | |
80e01f8d | 1048 | Lisp_Object position; |
7df74da6 | 1049 | { |
b7826503 | 1050 | CHECK_NUMBER_COERCE_MARKER (position); |
fcf9683e KH |
1051 | if (XINT (position) < BEG || XINT (position) > Z) |
1052 | return Qnil; | |
fa8a5a15 | 1053 | return make_number (CHAR_TO_BYTE (XINT (position))); |
7df74da6 | 1054 | } |
3ab0732d RS |
1055 | |
1056 | DEFUN ("byte-to-position", Fbyte_to_position, Sbyte_to_position, 1, 1, 0, | |
7ee72033 MB |
1057 | doc: /* Return the character position for byte position BYTEPOS. |
1058 | If BYTEPOS is out of range, the value is nil. */) | |
1059 | (bytepos) | |
3ab0732d RS |
1060 | Lisp_Object bytepos; |
1061 | { | |
b7826503 | 1062 | CHECK_NUMBER (bytepos); |
fcf9683e KH |
1063 | if (XINT (bytepos) < BEG_BYTE || XINT (bytepos) > Z_BYTE) |
1064 | return Qnil; | |
3ab0732d RS |
1065 | return make_number (BYTE_TO_CHAR (XINT (bytepos))); |
1066 | } | |
7df74da6 | 1067 | \f |
850a8179 | 1068 | DEFUN ("following-char", Ffollowing_char, Sfollowing_char, 0, 0, 0, |
7ee72033 MB |
1069 | doc: /* Return the character following point, as a number. |
1070 | At the end of the buffer or accessible region, return 0. */) | |
1071 | () | |
35692fe0 JB |
1072 | { |
1073 | Lisp_Object temp; | |
6ec8bbd2 | 1074 | if (PT >= ZV) |
55561c63 | 1075 | XSETFASTINT (temp, 0); |
850a8179 | 1076 | else |
ec1c14f6 | 1077 | XSETFASTINT (temp, FETCH_CHAR (PT_BYTE)); |
35692fe0 JB |
1078 | return temp; |
1079 | } | |
1080 | ||
850a8179 | 1081 | DEFUN ("preceding-char", Fprevious_char, Sprevious_char, 0, 0, 0, |
7ee72033 MB |
1082 | doc: /* Return the character preceding point, as a number. |
1083 | At the beginning of the buffer or accessible region, return 0. */) | |
1084 | () | |
35692fe0 JB |
1085 | { |
1086 | Lisp_Object temp; | |
6ec8bbd2 | 1087 | if (PT <= BEGV) |
55561c63 | 1088 | XSETFASTINT (temp, 0); |
fb8106e8 KH |
1089 | else if (!NILP (current_buffer->enable_multibyte_characters)) |
1090 | { | |
ec1c14f6 | 1091 | int pos = PT_BYTE; |
fb8106e8 KH |
1092 | DEC_POS (pos); |
1093 | XSETFASTINT (temp, FETCH_CHAR (pos)); | |
1094 | } | |
35692fe0 | 1095 | else |
ec1c14f6 | 1096 | XSETFASTINT (temp, FETCH_BYTE (PT_BYTE - 1)); |
35692fe0 JB |
1097 | return temp; |
1098 | } | |
1099 | ||
1100 | DEFUN ("bobp", Fbobp, Sbobp, 0, 0, 0, | |
7ee72033 MB |
1101 | doc: /* Return t if point is at the beginning of the buffer. |
1102 | If the buffer is narrowed, this means the beginning of the narrowed part. */) | |
1103 | () | |
35692fe0 | 1104 | { |
6ec8bbd2 | 1105 | if (PT == BEGV) |
35692fe0 JB |
1106 | return Qt; |
1107 | return Qnil; | |
1108 | } | |
1109 | ||
1110 | DEFUN ("eobp", Feobp, Seobp, 0, 0, 0, | |
7ee72033 MB |
1111 | doc: /* Return t if point is at the end of the buffer. |
1112 | If the buffer is narrowed, this means the end of the narrowed part. */) | |
1113 | () | |
35692fe0 | 1114 | { |
6ec8bbd2 | 1115 | if (PT == ZV) |
35692fe0 JB |
1116 | return Qt; |
1117 | return Qnil; | |
1118 | } | |
1119 | ||
1120 | DEFUN ("bolp", Fbolp, Sbolp, 0, 0, 0, | |
7ee72033 MB |
1121 | doc: /* Return t if point is at the beginning of a line. */) |
1122 | () | |
35692fe0 | 1123 | { |
ec1c14f6 | 1124 | if (PT == BEGV || FETCH_BYTE (PT_BYTE - 1) == '\n') |
35692fe0 JB |
1125 | return Qt; |
1126 | return Qnil; | |
1127 | } | |
1128 | ||
1129 | DEFUN ("eolp", Feolp, Seolp, 0, 0, 0, | |
7ee72033 MB |
1130 | doc: /* Return t if point is at the end of a line. |
1131 | `End of a line' includes point being at the end of the buffer. */) | |
1132 | () | |
35692fe0 | 1133 | { |
ec1c14f6 | 1134 | if (PT == ZV || FETCH_BYTE (PT_BYTE) == '\n') |
35692fe0 JB |
1135 | return Qt; |
1136 | return Qnil; | |
1137 | } | |
1138 | ||
fa1d3816 | 1139 | DEFUN ("char-after", Fchar_after, Schar_after, 0, 1, 0, |
7ee72033 | 1140 | doc: /* Return character in current buffer at position POS. |
a1f17501 | 1141 | POS is an integer or a marker. |
7ee72033 MB |
1142 | If POS is out of range, the value is nil. */) |
1143 | (pos) | |
35692fe0 JB |
1144 | Lisp_Object pos; |
1145 | { | |
ec1c14f6 | 1146 | register int pos_byte; |
35692fe0 | 1147 | |
fa1d3816 | 1148 | if (NILP (pos)) |
39a4c932 RS |
1149 | { |
1150 | pos_byte = PT_BYTE; | |
3c52e568 | 1151 | XSETFASTINT (pos, PT); |
39a4c932 RS |
1152 | } |
1153 | ||
1154 | if (MARKERP (pos)) | |
85cac557 RS |
1155 | { |
1156 | pos_byte = marker_byte_position (pos); | |
1157 | if (pos_byte < BEGV_BYTE || pos_byte >= ZV_BYTE) | |
1158 | return Qnil; | |
1159 | } | |
fa1d3816 RS |
1160 | else |
1161 | { | |
b7826503 | 1162 | CHECK_NUMBER_COERCE_MARKER (pos); |
b98ef0dc | 1163 | if (XINT (pos) < BEGV || XINT (pos) >= ZV) |
85cac557 | 1164 | return Qnil; |
34a7a267 | 1165 | |
ec1c14f6 | 1166 | pos_byte = CHAR_TO_BYTE (XINT (pos)); |
fa1d3816 | 1167 | } |
35692fe0 | 1168 | |
ec1c14f6 | 1169 | return make_number (FETCH_CHAR (pos_byte)); |
35692fe0 | 1170 | } |
fb8106e8 | 1171 | |
fa1d3816 | 1172 | DEFUN ("char-before", Fchar_before, Schar_before, 0, 1, 0, |
7ee72033 | 1173 | doc: /* Return character in current buffer preceding position POS. |
a1f17501 | 1174 | POS is an integer or a marker. |
7ee72033 MB |
1175 | If POS is out of range, the value is nil. */) |
1176 | (pos) | |
fb8106e8 KH |
1177 | Lisp_Object pos; |
1178 | { | |
1179 | register Lisp_Object val; | |
ec1c14f6 | 1180 | register int pos_byte; |
fb8106e8 | 1181 | |
fa1d3816 | 1182 | if (NILP (pos)) |
39a4c932 RS |
1183 | { |
1184 | pos_byte = PT_BYTE; | |
3c52e568 | 1185 | XSETFASTINT (pos, PT); |
39a4c932 RS |
1186 | } |
1187 | ||
1188 | if (MARKERP (pos)) | |
85cac557 RS |
1189 | { |
1190 | pos_byte = marker_byte_position (pos); | |
1191 | ||
1192 | if (pos_byte <= BEGV_BYTE || pos_byte > ZV_BYTE) | |
1193 | return Qnil; | |
1194 | } | |
fa1d3816 RS |
1195 | else |
1196 | { | |
b7826503 | 1197 | CHECK_NUMBER_COERCE_MARKER (pos); |
fb8106e8 | 1198 | |
b98ef0dc | 1199 | if (XINT (pos) <= BEGV || XINT (pos) > ZV) |
85cac557 RS |
1200 | return Qnil; |
1201 | ||
ec1c14f6 | 1202 | pos_byte = CHAR_TO_BYTE (XINT (pos)); |
fa1d3816 | 1203 | } |
fb8106e8 KH |
1204 | |
1205 | if (!NILP (current_buffer->enable_multibyte_characters)) | |
1206 | { | |
ec1c14f6 RS |
1207 | DEC_POS (pos_byte); |
1208 | XSETFASTINT (val, FETCH_CHAR (pos_byte)); | |
fb8106e8 KH |
1209 | } |
1210 | else | |
1211 | { | |
ec1c14f6 RS |
1212 | pos_byte--; |
1213 | XSETFASTINT (val, FETCH_BYTE (pos_byte)); | |
fb8106e8 KH |
1214 | } |
1215 | return val; | |
1216 | } | |
35692fe0 | 1217 | \f |
87485d6f | 1218 | DEFUN ("user-login-name", Fuser_login_name, Suser_login_name, 0, 1, 0, |
7ee72033 | 1219 | doc: /* Return the name under which the user logged in, as a string. |
a1f17501 PJ |
1220 | This is based on the effective uid, not the real uid. |
1221 | Also, if the environment variable LOGNAME or USER is set, | |
1222 | that determines the value of this function. | |
1223 | ||
1224 | If optional argument UID is an integer, return the login name of the user | |
7ee72033 MB |
1225 | with that uid, or nil if there is no such user. */) |
1226 | (uid) | |
87485d6f | 1227 | Lisp_Object uid; |
35692fe0 | 1228 | { |
87485d6f MW |
1229 | struct passwd *pw; |
1230 | ||
f8a0e364 RS |
1231 | /* Set up the user name info if we didn't do it before. |
1232 | (That can happen if Emacs is dumpable | |
1233 | but you decide to run `temacs -l loadup' and not dump. */ | |
35b34f72 | 1234 | if (INTEGERP (Vuser_login_name)) |
f8a0e364 | 1235 | init_editfns (); |
87485d6f MW |
1236 | |
1237 | if (NILP (uid)) | |
35b34f72 | 1238 | return Vuser_login_name; |
87485d6f | 1239 | |
b7826503 | 1240 | CHECK_NUMBER (uid); |
87485d6f MW |
1241 | pw = (struct passwd *) getpwuid (XINT (uid)); |
1242 | return (pw ? build_string (pw->pw_name) : Qnil); | |
35692fe0 JB |
1243 | } |
1244 | ||
1245 | DEFUN ("user-real-login-name", Fuser_real_login_name, Suser_real_login_name, | |
deb8e082 | 1246 | 0, 0, 0, |
7ee72033 | 1247 | doc: /* Return the name of the user's real uid, as a string. |
a1f17501 | 1248 | This ignores the environment variables LOGNAME and USER, so it differs from |
7ee72033 MB |
1249 | `user-login-name' when running under `su'. */) |
1250 | () | |
35692fe0 | 1251 | { |
f8a0e364 RS |
1252 | /* Set up the user name info if we didn't do it before. |
1253 | (That can happen if Emacs is dumpable | |
1254 | but you decide to run `temacs -l loadup' and not dump. */ | |
35b34f72 | 1255 | if (INTEGERP (Vuser_login_name)) |
f8a0e364 | 1256 | init_editfns (); |
35b34f72 | 1257 | return Vuser_real_login_name; |
35692fe0 JB |
1258 | } |
1259 | ||
1260 | DEFUN ("user-uid", Fuser_uid, Suser_uid, 0, 0, 0, | |
7ee72033 MB |
1261 | doc: /* Return the effective uid of Emacs. |
1262 | Value is an integer or float, depending on the value. */) | |
1263 | () | |
35692fe0 | 1264 | { |
1615d97a | 1265 | return make_fixnum_or_float (geteuid ()); |
35692fe0 JB |
1266 | } |
1267 | ||
1268 | DEFUN ("user-real-uid", Fuser_real_uid, Suser_real_uid, 0, 0, 0, | |
7ee72033 MB |
1269 | doc: /* Return the real uid of Emacs. |
1270 | Value is an integer or float, depending on the value. */) | |
1271 | () | |
35692fe0 | 1272 | { |
1615d97a | 1273 | return make_fixnum_or_float (getuid ()); |
35692fe0 JB |
1274 | } |
1275 | ||
c9ed721d | 1276 | DEFUN ("user-full-name", Fuser_full_name, Suser_full_name, 0, 1, 0, |
7ee72033 | 1277 | doc: /* Return the full name of the user logged in, as a string. |
a1f17501 PJ |
1278 | If the full name corresponding to Emacs's userid is not known, |
1279 | return "unknown". | |
1280 | ||
1281 | If optional argument UID is an integer or float, return the full name | |
1282 | of the user with that uid, or nil if there is no such user. | |
1283 | If UID is a string, return the full name of the user with that login | |
7ee72033 MB |
1284 | name, or nil if there is no such user. */) |
1285 | (uid) | |
c9ed721d | 1286 | Lisp_Object uid; |
35692fe0 | 1287 | { |
c9ed721d | 1288 | struct passwd *pw; |
b0e92acd | 1289 | register unsigned char *p, *q; |
3415b0e9 | 1290 | Lisp_Object full; |
c9ed721d RS |
1291 | |
1292 | if (NILP (uid)) | |
34a7a267 | 1293 | return Vuser_full_name; |
3415b0e9 | 1294 | else if (NUMBERP (uid)) |
1615d97a | 1295 | pw = (struct passwd *) getpwuid ((uid_t) XFLOATINT (uid)); |
34a7a267 | 1296 | else if (STRINGP (uid)) |
d5db4077 | 1297 | pw = (struct passwd *) getpwnam (SDATA (uid)); |
3415b0e9 RS |
1298 | else |
1299 | error ("Invalid UID specification"); | |
c9ed721d | 1300 | |
3415b0e9 | 1301 | if (!pw) |
3347526c | 1302 | return Qnil; |
34a7a267 | 1303 | |
3415b0e9 RS |
1304 | p = (unsigned char *) USER_FULL_NAME; |
1305 | /* Chop off everything after the first comma. */ | |
1306 | q = (unsigned char *) index (p, ','); | |
1307 | full = make_string (p, q ? q - p : strlen (p)); | |
34a7a267 | 1308 | |
3415b0e9 | 1309 | #ifdef AMPERSAND_FULL_NAME |
d5db4077 | 1310 | p = SDATA (full); |
3415b0e9 RS |
1311 | q = (unsigned char *) index (p, '&'); |
1312 | /* Substitute the login name for the &, upcasing the first character. */ | |
1313 | if (q) | |
1314 | { | |
b0e92acd | 1315 | register unsigned char *r; |
3415b0e9 RS |
1316 | Lisp_Object login; |
1317 | ||
1318 | login = Fuser_login_name (make_number (pw->pw_uid)); | |
d5db4077 | 1319 | r = (unsigned char *) alloca (strlen (p) + SCHARS (login) + 1); |
3415b0e9 RS |
1320 | bcopy (p, r, q - p); |
1321 | r[q - p] = 0; | |
d5db4077 | 1322 | strcat (r, SDATA (login)); |
3415b0e9 RS |
1323 | r[q - p] = UPCASE (r[q - p]); |
1324 | strcat (r, q + 1); | |
1325 | full = build_string (r); | |
1326 | } | |
1327 | #endif /* AMPERSAND_FULL_NAME */ | |
1328 | ||
1329 | return full; | |
35692fe0 JB |
1330 | } |
1331 | ||
1332 | DEFUN ("system-name", Fsystem_name, Ssystem_name, 0, 0, 0, | |
7ee72033 MB |
1333 | doc: /* Return the name of the machine you are running on, as a string. */) |
1334 | () | |
35692fe0 JB |
1335 | { |
1336 | return Vsystem_name; | |
1337 | } | |
1338 | ||
ac988277 | 1339 | /* For the benefit of callers who don't want to include lisp.h */ |
acb7cc89 | 1340 | |
ac988277 KH |
1341 | char * |
1342 | get_system_name () | |
1343 | { | |
3d976a9a | 1344 | if (STRINGP (Vsystem_name)) |
d5db4077 | 1345 | return (char *) SDATA (Vsystem_name); |
3d976a9a RS |
1346 | else |
1347 | return ""; | |
ac988277 KH |
1348 | } |
1349 | ||
7fd233b3 | 1350 | DEFUN ("emacs-pid", Femacs_pid, Semacs_pid, 0, 0, 0, |
7ee72033 MB |
1351 | doc: /* Return the process ID of Emacs, as an integer. */) |
1352 | () | |
7fd233b3 RS |
1353 | { |
1354 | return make_number (getpid ()); | |
1355 | } | |
1356 | ||
d940e0e4 | 1357 | DEFUN ("current-time", Fcurrent_time, Scurrent_time, 0, 0, 0, |
7ee72033 | 1358 | doc: /* Return the current time, as the number of seconds since 1970-01-01 00:00:00. |
a1f17501 PJ |
1359 | The time is returned as a list of three integers. The first has the |
1360 | most significant 16 bits of the seconds, while the second has the | |
1361 | least significant 16 bits. The third integer gives the microsecond | |
1362 | count. | |
1363 | ||
1364 | The microsecond count is zero on systems that do not provide | |
7ee72033 MB |
1365 | resolution finer than a second. */) |
1366 | () | |
d940e0e4 | 1367 | { |
956ace37 JB |
1368 | EMACS_TIME t; |
1369 | Lisp_Object result[3]; | |
1370 | ||
1371 | EMACS_GET_TIME (t); | |
d2fd0445 KH |
1372 | XSETINT (result[0], (EMACS_SECS (t) >> 16) & 0xffff); |
1373 | XSETINT (result[1], (EMACS_SECS (t) >> 0) & 0xffff); | |
1374 | XSETINT (result[2], EMACS_USECS (t)); | |
956ace37 JB |
1375 | |
1376 | return Flist (3, result); | |
d940e0e4 JB |
1377 | } |
1378 | \f | |
1379 | ||
e3120ab5 | 1380 | static int |
34a7a267 | 1381 | lisp_time_argument (specified_time, result, usec) |
e3120ab5 JB |
1382 | Lisp_Object specified_time; |
1383 | time_t *result; | |
34a7a267 | 1384 | int *usec; |
e3120ab5 JB |
1385 | { |
1386 | if (NILP (specified_time)) | |
34a7a267 SS |
1387 | { |
1388 | if (usec) | |
1389 | { | |
1390 | EMACS_TIME t; | |
1391 | ||
c0261b5e | 1392 | EMACS_GET_TIME (t); |
34a7a267 SS |
1393 | *usec = EMACS_USECS (t); |
1394 | *result = EMACS_SECS (t); | |
1395 | return 1; | |
1396 | } | |
1397 | else | |
1398 | return time (result) != -1; | |
1399 | } | |
e3120ab5 JB |
1400 | else |
1401 | { | |
1402 | Lisp_Object high, low; | |
1403 | high = Fcar (specified_time); | |
b7826503 | 1404 | CHECK_NUMBER (high); |
e3120ab5 | 1405 | low = Fcdr (specified_time); |
ae683129 | 1406 | if (CONSP (low)) |
34a7a267 SS |
1407 | { |
1408 | if (usec) | |
1409 | { | |
1410 | Lisp_Object usec_l = Fcdr (low); | |
1411 | if (CONSP (usec_l)) | |
1412 | usec_l = Fcar (usec_l); | |
1413 | if (NILP (usec_l)) | |
1414 | *usec = 0; | |
1415 | else | |
1416 | { | |
b7826503 | 1417 | CHECK_NUMBER (usec_l); |
34a7a267 SS |
1418 | *usec = XINT (usec_l); |
1419 | } | |
1420 | } | |
1421 | low = Fcar (low); | |
1422 | } | |
1423 | else if (usec) | |
1424 | *usec = 0; | |
b7826503 | 1425 | CHECK_NUMBER (low); |
e3120ab5 JB |
1426 | *result = (XINT (high) << 16) + (XINT (low) & 0xffff); |
1427 | return *result >> 16 == XINT (high); | |
1428 | } | |
1429 | } | |
1430 | ||
34a7a267 | 1431 | DEFUN ("float-time", Ffloat_time, Sfloat_time, 0, 1, 0, |
7ee72033 | 1432 | doc: /* Return the current time, as a float number of seconds since the epoch. |
a1f17501 PJ |
1433 | If an argument is given, it specifies a time to convert to float |
1434 | instead of the current time. The argument should have the forms: | |
1435 | (HIGH . LOW) or (HIGH LOW USEC) or (HIGH LOW . USEC). | |
1436 | Thus, you can use times obtained from `current-time' | |
1437 | and from `file-attributes'. | |
1438 | ||
1439 | WARNING: Since the result is floating point, it may not be exact. | |
7ee72033 MB |
1440 | Do not use this function if precise time stamps are required. */) |
1441 | (specified_time) | |
34a7a267 SS |
1442 | Lisp_Object specified_time; |
1443 | { | |
1444 | time_t sec; | |
1445 | int usec; | |
1446 | ||
1447 | if (! lisp_time_argument (specified_time, &sec, &usec)) | |
1448 | error ("Invalid time specification"); | |
1449 | ||
26fad6e5 | 1450 | return make_float ((sec * 1e6 + usec) / 1e6); |
34a7a267 SS |
1451 | } |
1452 | ||
70ebbe5f PE |
1453 | /* Write information into buffer S of size MAXSIZE, according to the |
1454 | FORMAT of length FORMAT_LEN, using time information taken from *TP. | |
68c45bf0 | 1455 | Default to Universal Time if UT is nonzero, local time otherwise. |
70ebbe5f PE |
1456 | Return the number of bytes written, not including the terminating |
1457 | '\0'. If S is NULL, nothing will be written anywhere; so to | |
1458 | determine how many bytes would be written, use NULL for S and | |
1459 | ((size_t) -1) for MAXSIZE. | |
1460 | ||
68c45bf0 | 1461 | This function behaves like emacs_strftimeu, except it allows null |
70ebbe5f PE |
1462 | bytes in FORMAT. */ |
1463 | static size_t | |
68c45bf0 | 1464 | emacs_memftimeu (s, maxsize, format, format_len, tp, ut) |
70ebbe5f PE |
1465 | char *s; |
1466 | size_t maxsize; | |
1467 | const char *format; | |
1468 | size_t format_len; | |
1469 | const struct tm *tp; | |
68c45bf0 | 1470 | int ut; |
70ebbe5f PE |
1471 | { |
1472 | size_t total = 0; | |
1473 | ||
be09e6e6 PE |
1474 | /* Loop through all the null-terminated strings in the format |
1475 | argument. Normally there's just one null-terminated string, but | |
1476 | there can be arbitrarily many, concatenated together, if the | |
68c45bf0 | 1477 | format contains '\0' bytes. emacs_strftimeu stops at the first |
be09e6e6 | 1478 | '\0' byte so we must invoke it separately for each such string. */ |
70ebbe5f PE |
1479 | for (;;) |
1480 | { | |
1481 | size_t len; | |
1482 | size_t result; | |
1483 | ||
1484 | if (s) | |
1485 | s[0] = '\1'; | |
1486 | ||
68c45bf0 | 1487 | result = emacs_strftimeu (s, maxsize, format, tp, ut); |
70ebbe5f PE |
1488 | |
1489 | if (s) | |
1490 | { | |
1491 | if (result == 0 && s[0] != '\0') | |
1492 | return 0; | |
1493 | s += result + 1; | |
1494 | } | |
1495 | ||
1496 | maxsize -= result + 1; | |
1497 | total += result; | |
1498 | len = strlen (format); | |
1499 | if (len == format_len) | |
1500 | return total; | |
1501 | total++; | |
1502 | format += len + 1; | |
1503 | format_len -= len + 1; | |
1504 | } | |
1505 | } | |
1506 | ||
3efcc98a | 1507 | DEFUN ("format-time-string", Fformat_time_string, Sformat_time_string, 1, 3, 0, |
7ee72033 | 1508 | doc: /* Use FORMAT-STRING to format the time TIME, or now if omitted. |
a1f17501 PJ |
1509 | TIME is specified as (HIGH LOW . IGNORED) or (HIGH . LOW), as returned by |
1510 | `current-time' or `file-attributes'. | |
1511 | The third, optional, argument UNIVERSAL, if non-nil, means describe TIME | |
1512 | as Universal Time; nil means describe TIME in the local time zone. | |
1513 | The value is a copy of FORMAT-STRING, but with certain constructs replaced | |
1514 | by text that describes the specified date and time in TIME: | |
1515 | ||
1516 | %Y is the year, %y within the century, %C the century. | |
1517 | %G is the year corresponding to the ISO week, %g within the century. | |
1518 | %m is the numeric month. | |
1519 | %b and %h are the locale's abbreviated month name, %B the full name. | |
1520 | %d is the day of the month, zero-padded, %e is blank-padded. | |
1521 | %u is the numeric day of week from 1 (Monday) to 7, %w from 0 (Sunday) to 6. | |
1522 | %a is the locale's abbreviated name of the day of week, %A the full name. | |
1523 | %U is the week number starting on Sunday, %W starting on Monday, | |
1524 | %V according to ISO 8601. | |
1525 | %j is the day of the year. | |
1526 | ||
1527 | %H is the hour on a 24-hour clock, %I is on a 12-hour clock, %k is like %H | |
1528 | only blank-padded, %l is like %I blank-padded. | |
1529 | %p is the locale's equivalent of either AM or PM. | |
1530 | %M is the minute. | |
1531 | %S is the second. | |
1532 | %Z is the time zone name, %z is the numeric form. | |
1533 | %s is the number of seconds since 1970-01-01 00:00:00 +0000. | |
1534 | ||
1535 | %c is the locale's date and time format. | |
1536 | %x is the locale's "preferred" date format. | |
1537 | %D is like "%m/%d/%y". | |
1538 | ||
1539 | %R is like "%H:%M", %T is like "%H:%M:%S", %r is like "%I:%M:%S %p". | |
1540 | %X is the locale's "preferred" time format. | |
1541 | ||
1542 | Finally, %n is a newline, %t is a tab, %% is a literal %. | |
1543 | ||
1544 | Certain flags and modifiers are available with some format controls. | |
1545 | The flags are `_', `-', `^' and `#'. For certain characters X, | |
1546 | %_X is like %X, but padded with blanks; %-X is like %X, | |
a67a233b MR |
1547 | but without padding. %^X is like %X, but with all textual |
1548 | characters up-cased; %#X is like %X, but with letter-case of | |
a1f17501 PJ |
1549 | all textual characters reversed. |
1550 | %NX (where N stands for an integer) is like %X, | |
1551 | but takes up at least N (a number) positions. | |
1552 | The modifiers are `E' and `O'. For certain characters X, | |
1553 | %EX is a locale's alternative version of %X; | |
1554 | %OX is like %X, but uses the locale's number symbols. | |
1555 | ||
7ee72033 MB |
1556 | For example, to produce full ISO 8601 format, use "%Y-%m-%dT%T%z". */) |
1557 | (format_string, time, universal) | |
b48382a0 | 1558 | Lisp_Object format_string, time, universal; |
a82d387c RS |
1559 | { |
1560 | time_t value; | |
1561 | int size; | |
177ea5f1 | 1562 | struct tm *tm; |
68c45bf0 | 1563 | int ut = ! NILP (universal); |
a82d387c | 1564 | |
b7826503 | 1565 | CHECK_STRING (format_string); |
a82d387c | 1566 | |
34a7a267 | 1567 | if (! lisp_time_argument (time, &value, NULL)) |
a82d387c RS |
1568 | error ("Invalid time specification"); |
1569 | ||
68c45bf0 PE |
1570 | format_string = code_convert_string_norecord (format_string, |
1571 | Vlocale_coding_system, 1); | |
1572 | ||
a82d387c | 1573 | /* This is probably enough. */ |
d5db4077 | 1574 | size = SBYTES (format_string) * 6 + 50; |
a82d387c | 1575 | |
68c45bf0 | 1576 | tm = ut ? gmtime (&value) : localtime (&value); |
177ea5f1 PE |
1577 | if (! tm) |
1578 | error ("Specified time is not representable"); | |
1579 | ||
ca9c0567 | 1580 | synchronize_system_time_locale (); |
68c45bf0 | 1581 | |
a82d387c RS |
1582 | while (1) |
1583 | { | |
b48382a0 RS |
1584 | char *buf = (char *) alloca (size + 1); |
1585 | int result; | |
1586 | ||
bfbcc5ee | 1587 | buf[0] = '\1'; |
d5db4077 KR |
1588 | result = emacs_memftimeu (buf, size, SDATA (format_string), |
1589 | SBYTES (format_string), | |
68c45bf0 | 1590 | tm, ut); |
bfbcc5ee | 1591 | if ((result > 0 && result < size) || (result == 0 && buf[0] == '\0')) |
68c45bf0 PE |
1592 | return code_convert_string_norecord (make_string (buf, result), |
1593 | Vlocale_coding_system, 0); | |
b48382a0 RS |
1594 | |
1595 | /* If buffer was too small, make it bigger and try again. */ | |
68c45bf0 | 1596 | result = emacs_memftimeu (NULL, (size_t) -1, |
d5db4077 KR |
1597 | SDATA (format_string), |
1598 | SBYTES (format_string), | |
68c45bf0 | 1599 | tm, ut); |
b48382a0 | 1600 | size = result + 1; |
a82d387c RS |
1601 | } |
1602 | } | |
1603 | ||
4691c06d | 1604 | DEFUN ("decode-time", Fdecode_time, Sdecode_time, 0, 1, 0, |
7ee72033 | 1605 | doc: /* Decode a time value as (SEC MINUTE HOUR DAY MONTH YEAR DOW DST ZONE). |
a1f17501 PJ |
1606 | The optional SPECIFIED-TIME should be a list of (HIGH LOW . IGNORED) |
1607 | or (HIGH . LOW), as from `current-time' and `file-attributes', or `nil' | |
1608 | to use the current time. The list has the following nine members: | |
1609 | SEC is an integer between 0 and 60; SEC is 60 for a leap second, which | |
1610 | only some operating systems support. MINUTE is an integer between 0 and 59. | |
1611 | HOUR is an integer between 0 and 23. DAY is an integer between 1 and 31. | |
1612 | MONTH is an integer between 1 and 12. YEAR is an integer indicating the | |
1613 | four-digit year. DOW is the day of week, an integer between 0 and 6, where | |
1614 | 0 is Sunday. DST is t if daylight savings time is effect, otherwise nil. | |
1615 | ZONE is an integer indicating the number of seconds east of Greenwich. | |
7ee72033 MB |
1616 | (Note that Common Lisp has different meanings for DOW and ZONE.) */) |
1617 | (specified_time) | |
4691c06d RS |
1618 | Lisp_Object specified_time; |
1619 | { | |
1620 | time_t time_spec; | |
3c887943 | 1621 | struct tm save_tm; |
4691c06d RS |
1622 | struct tm *decoded_time; |
1623 | Lisp_Object list_args[9]; | |
34a7a267 SS |
1624 | |
1625 | if (! lisp_time_argument (specified_time, &time_spec, NULL)) | |
4691c06d RS |
1626 | error ("Invalid time specification"); |
1627 | ||
1628 | decoded_time = localtime (&time_spec); | |
177ea5f1 PE |
1629 | if (! decoded_time) |
1630 | error ("Specified time is not representable"); | |
3c887943 KH |
1631 | XSETFASTINT (list_args[0], decoded_time->tm_sec); |
1632 | XSETFASTINT (list_args[1], decoded_time->tm_min); | |
1633 | XSETFASTINT (list_args[2], decoded_time->tm_hour); | |
1634 | XSETFASTINT (list_args[3], decoded_time->tm_mday); | |
1635 | XSETFASTINT (list_args[4], decoded_time->tm_mon + 1); | |
236ebf35 | 1636 | XSETINT (list_args[5], decoded_time->tm_year + 1900); |
3c887943 | 1637 | XSETFASTINT (list_args[6], decoded_time->tm_wday); |
4691c06d | 1638 | list_args[7] = (decoded_time->tm_isdst)? Qt : Qnil; |
3c887943 KH |
1639 | |
1640 | /* Make a copy, in case gmtime modifies the struct. */ | |
1641 | save_tm = *decoded_time; | |
1642 | decoded_time = gmtime (&time_spec); | |
1643 | if (decoded_time == 0) | |
1644 | list_args[8] = Qnil; | |
1645 | else | |
94751666 | 1646 | XSETINT (list_args[8], tm_diff (&save_tm, decoded_time)); |
4691c06d RS |
1647 | return Flist (9, list_args); |
1648 | } | |
1649 | ||
6ee9061c | 1650 | DEFUN ("encode-time", Fencode_time, Sencode_time, 6, MANY, 0, |
7ee72033 | 1651 | doc: /* Convert SECOND, MINUTE, HOUR, DAY, MONTH, YEAR and ZONE to internal time. |
a1f17501 PJ |
1652 | This is the reverse operation of `decode-time', which see. |
1653 | ZONE defaults to the current time zone rule. This can | |
1654 | be a string or t (as from `set-time-zone-rule'), or it can be a list | |
b57c2708 | 1655 | \(as from `current-time-zone') or an integer (as from `decode-time') |
a1f17501 PJ |
1656 | applied without consideration for daylight savings time. |
1657 | ||
1658 | You can pass more than 7 arguments; then the first six arguments | |
1659 | are used as SECOND through YEAR, and the *last* argument is used as ZONE. | |
1660 | The intervening arguments are ignored. | |
1661 | This feature lets (apply 'encode-time (decode-time ...)) work. | |
1662 | ||
1663 | Out-of-range values for SEC, MINUTE, HOUR, DAY, or MONTH are allowed; | |
1664 | for example, a DAY of 0 means the day preceding the given month. | |
1665 | Year numbers less than 100 are treated just like other year numbers. | |
4bfbe194 MB |
1666 | If you want them to stand for years in this century, you must do that yourself. |
1667 | ||
c24e982c RS |
1668 | Years before 1970 are not guaranteed to work. On some systems, |
1669 | year values as low as 1901 do work. | |
1670 | ||
4bfbe194 | 1671 | usage: (encode-time SECOND MINUTE HOUR DAY MONTH YEAR &optional ZONE) */) |
7ee72033 | 1672 | (nargs, args) |
6ee9061c RS |
1673 | int nargs; |
1674 | register Lisp_Object *args; | |
cce7b8a0 | 1675 | { |
1b8fa736 | 1676 | time_t time; |
c59b5089 | 1677 | struct tm tm; |
60653898 | 1678 | Lisp_Object zone = (nargs > 6 ? args[nargs - 1] : Qnil); |
6ee9061c | 1679 | |
b7826503 PJ |
1680 | CHECK_NUMBER (args[0]); /* second */ |
1681 | CHECK_NUMBER (args[1]); /* minute */ | |
1682 | CHECK_NUMBER (args[2]); /* hour */ | |
1683 | CHECK_NUMBER (args[3]); /* day */ | |
1684 | CHECK_NUMBER (args[4]); /* month */ | |
1685 | CHECK_NUMBER (args[5]); /* year */ | |
6ee9061c RS |
1686 | |
1687 | tm.tm_sec = XINT (args[0]); | |
1688 | tm.tm_min = XINT (args[1]); | |
1689 | tm.tm_hour = XINT (args[2]); | |
1690 | tm.tm_mday = XINT (args[3]); | |
1691 | tm.tm_mon = XINT (args[4]) - 1; | |
1692 | tm.tm_year = XINT (args[5]) - 1900; | |
c59b5089 PE |
1693 | tm.tm_isdst = -1; |
1694 | ||
1695 | if (CONSP (zone)) | |
1696 | zone = Fcar (zone); | |
1b8fa736 | 1697 | if (NILP (zone)) |
c59b5089 PE |
1698 | time = mktime (&tm); |
1699 | else | |
1b8fa736 | 1700 | { |
c59b5089 PE |
1701 | char tzbuf[100]; |
1702 | char *tzstring; | |
1703 | char **oldenv = environ, **newenv; | |
34a7a267 | 1704 | |
2e34157c | 1705 | if (EQ (zone, Qt)) |
085e9fcb EN |
1706 | tzstring = "UTC0"; |
1707 | else if (STRINGP (zone)) | |
d5db4077 | 1708 | tzstring = (char *) SDATA (zone); |
c59b5089 | 1709 | else if (INTEGERP (zone)) |
1b8fa736 | 1710 | { |
c59b5089 PE |
1711 | int abszone = abs (XINT (zone)); |
1712 | sprintf (tzbuf, "XXX%s%d:%02d:%02d", "-" + (XINT (zone) < 0), | |
1713 | abszone / (60*60), (abszone/60) % 60, abszone % 60); | |
1714 | tzstring = tzbuf; | |
1b8fa736 | 1715 | } |
c59b5089 PE |
1716 | else |
1717 | error ("Invalid time zone specification"); | |
1718 | ||
34a7a267 | 1719 | /* Set TZ before calling mktime; merely adjusting mktime's returned |
c59b5089 PE |
1720 | value doesn't suffice, since that would mishandle leap seconds. */ |
1721 | set_time_zone_rule (tzstring); | |
1722 | ||
1723 | time = mktime (&tm); | |
1724 | ||
1725 | /* Restore TZ to previous value. */ | |
1726 | newenv = environ; | |
1727 | environ = oldenv; | |
c0efcacf | 1728 | xfree (newenv); |
c59b5089 PE |
1729 | #ifdef LOCALTIME_CACHE |
1730 | tzset (); | |
1731 | #endif | |
1b8fa736 | 1732 | } |
1b8fa736 | 1733 | |
c59b5089 PE |
1734 | if (time == (time_t) -1) |
1735 | error ("Specified time is not representable"); | |
1736 | ||
1737 | return make_time (time); | |
cce7b8a0 RS |
1738 | } |
1739 | ||
2148f2b4 | 1740 | DEFUN ("current-time-string", Fcurrent_time_string, Scurrent_time_string, 0, 1, 0, |
7ee72033 | 1741 | doc: /* Return the current time, as a human-readable string. |
a1f17501 PJ |
1742 | Programs can use this function to decode a time, |
1743 | since the number of columns in each field is fixed. | |
1744 | The format is `Sun Sep 16 01:03:52 1973'. | |
1745 | However, see also the functions `decode-time' and `format-time-string' | |
1746 | which provide a much more powerful and general facility. | |
1747 | ||
1748 | If an argument is given, it specifies a time to format | |
1749 | instead of the current time. The argument should have the form: | |
1750 | (HIGH . LOW) | |
1751 | or the form: | |
1752 | (HIGH LOW . IGNORED). | |
1753 | Thus, you can use times obtained from `current-time' | |
7ee72033 MB |
1754 | and from `file-attributes'. */) |
1755 | (specified_time) | |
2148f2b4 RS |
1756 | Lisp_Object specified_time; |
1757 | { | |
e3120ab5 | 1758 | time_t value; |
35692fe0 | 1759 | char buf[30]; |
2148f2b4 RS |
1760 | register char *tem; |
1761 | ||
34a7a267 | 1762 | if (! lisp_time_argument (specified_time, &value, NULL)) |
e3120ab5 | 1763 | value = -1; |
2148f2b4 | 1764 | tem = (char *) ctime (&value); |
35692fe0 JB |
1765 | |
1766 | strncpy (buf, tem, 24); | |
1767 | buf[24] = 0; | |
1768 | ||
1769 | return build_string (buf); | |
1770 | } | |
c2662aea | 1771 | |
94751666 | 1772 | #define TM_YEAR_BASE 1900 |
e3120ab5 | 1773 | |
94751666 PE |
1774 | /* Yield A - B, measured in seconds. |
1775 | This function is copied from the GNU C Library. */ | |
1776 | static int | |
1777 | tm_diff (a, b) | |
e3120ab5 JB |
1778 | struct tm *a, *b; |
1779 | { | |
94751666 PE |
1780 | /* Compute intervening leap days correctly even if year is negative. |
1781 | Take care to avoid int overflow in leap day calculations, | |
1782 | but it's OK to assume that A and B are close to each other. */ | |
1783 | int a4 = (a->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (a->tm_year & 3); | |
1784 | int b4 = (b->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (b->tm_year & 3); | |
1785 | int a100 = a4 / 25 - (a4 % 25 < 0); | |
1786 | int b100 = b4 / 25 - (b4 % 25 < 0); | |
1787 | int a400 = a100 >> 2; | |
1788 | int b400 = b100 >> 2; | |
1789 | int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400); | |
1790 | int years = a->tm_year - b->tm_year; | |
1791 | int days = (365 * years + intervening_leap_days | |
1792 | + (a->tm_yday - b->tm_yday)); | |
1793 | return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour)) | |
1794 | + (a->tm_min - b->tm_min)) | |
8e718b4e | 1795 | + (a->tm_sec - b->tm_sec)); |
e3120ab5 JB |
1796 | } |
1797 | ||
1798 | DEFUN ("current-time-zone", Fcurrent_time_zone, Scurrent_time_zone, 0, 1, 0, | |
7ee72033 | 1799 | doc: /* Return the offset and name for the local time zone. |
a1f17501 PJ |
1800 | This returns a list of the form (OFFSET NAME). |
1801 | OFFSET is an integer number of seconds ahead of UTC (east of Greenwich). | |
1802 | A negative value means west of Greenwich. | |
1803 | NAME is a string giving the name of the time zone. | |
1804 | If an argument is given, it specifies when the time zone offset is determined | |
1805 | instead of using the current time. The argument should have the form: | |
1806 | (HIGH . LOW) | |
1807 | or the form: | |
1808 | (HIGH LOW . IGNORED). | |
1809 | Thus, you can use times obtained from `current-time' | |
1810 | and from `file-attributes'. | |
1811 | ||
1812 | Some operating systems cannot provide all this information to Emacs; | |
1813 | in this case, `current-time-zone' returns a list containing nil for | |
7ee72033 MB |
1814 | the data it can't find. */) |
1815 | (specified_time) | |
e3120ab5 | 1816 | Lisp_Object specified_time; |
c2662aea | 1817 | { |
e3120ab5 JB |
1818 | time_t value; |
1819 | struct tm *t; | |
177ea5f1 | 1820 | struct tm gmt; |
c2662aea | 1821 | |
34a7a267 | 1822 | if (lisp_time_argument (specified_time, &value, NULL) |
177ea5f1 PE |
1823 | && (t = gmtime (&value)) != 0 |
1824 | && (gmt = *t, t = localtime (&value)) != 0) | |
e3120ab5 | 1825 | { |
177ea5f1 PE |
1826 | int offset = tm_diff (t, &gmt); |
1827 | char *s = 0; | |
1828 | char buf[6]; | |
e3120ab5 JB |
1829 | #ifdef HAVE_TM_ZONE |
1830 | if (t->tm_zone) | |
5fd4de15 | 1831 | s = (char *)t->tm_zone; |
a7971c39 RS |
1832 | #else /* not HAVE_TM_ZONE */ |
1833 | #ifdef HAVE_TZNAME | |
1834 | if (t->tm_isdst == 0 || t->tm_isdst == 1) | |
1835 | s = tzname[t->tm_isdst]; | |
c2662aea | 1836 | #endif |
a7971c39 | 1837 | #endif /* not HAVE_TM_ZONE */ |
cda0f4da GM |
1838 | |
1839 | #if defined HAVE_TM_ZONE || defined HAVE_TZNAME | |
1840 | if (s) | |
1841 | { | |
1842 | /* On Japanese w32, we can get a Japanese string as time | |
1843 | zone name. Don't accept that. */ | |
1844 | char *p; | |
9fac18bf | 1845 | for (p = s; *p && (isalnum ((unsigned char)*p) || *p == ' '); ++p) |
cda0f4da GM |
1846 | ; |
1847 | if (p == s || *p) | |
1848 | s = NULL; | |
1849 | } | |
1850 | #endif | |
1851 | ||
e3120ab5 JB |
1852 | if (!s) |
1853 | { | |
1854 | /* No local time zone name is available; use "+-NNNN" instead. */ | |
00fc94d0 | 1855 | int am = (offset < 0 ? -offset : offset) / 60; |
e3120ab5 JB |
1856 | sprintf (buf, "%c%02d%02d", (offset < 0 ? '-' : '+'), am/60, am%60); |
1857 | s = buf; | |
1858 | } | |
1859 | return Fcons (make_number (offset), Fcons (build_string (s), Qnil)); | |
1860 | } | |
1861 | else | |
09dbcf71 | 1862 | return Fmake_list (make_number (2), Qnil); |
c2662aea JB |
1863 | } |
1864 | ||
260e2e2a KH |
1865 | /* This holds the value of `environ' produced by the previous |
1866 | call to Fset_time_zone_rule, or 0 if Fset_time_zone_rule | |
1867 | has never been called. */ | |
1868 | static char **environbuf; | |
1869 | ||
143cb9a9 | 1870 | DEFUN ("set-time-zone-rule", Fset_time_zone_rule, Sset_time_zone_rule, 1, 1, 0, |
7ee72033 | 1871 | doc: /* Set the local time zone using TZ, a string specifying a time zone rule. |
a1f17501 | 1872 | If TZ is nil, use implementation-defined default time zone information. |
7ee72033 MB |
1873 | If TZ is t, use Universal Time. */) |
1874 | (tz) | |
143cb9a9 RS |
1875 | Lisp_Object tz; |
1876 | { | |
143cb9a9 RS |
1877 | char *tzstring; |
1878 | ||
1879 | if (NILP (tz)) | |
1880 | tzstring = 0; | |
2e34157c | 1881 | else if (EQ (tz, Qt)) |
085e9fcb | 1882 | tzstring = "UTC0"; |
143cb9a9 RS |
1883 | else |
1884 | { | |
b7826503 | 1885 | CHECK_STRING (tz); |
d5db4077 | 1886 | tzstring = (char *) SDATA (tz); |
143cb9a9 RS |
1887 | } |
1888 | ||
c59b5089 PE |
1889 | set_time_zone_rule (tzstring); |
1890 | if (environbuf) | |
1891 | free (environbuf); | |
1892 | environbuf = environ; | |
1893 | ||
1894 | return Qnil; | |
1895 | } | |
1896 | ||
e0bf9faf PE |
1897 | #ifdef LOCALTIME_CACHE |
1898 | ||
1899 | /* These two values are known to load tz files in buggy implementations, | |
1900 | i.e. Solaris 1 executables running under either Solaris 1 or Solaris 2. | |
1155c453 | 1901 | Their values shouldn't matter in non-buggy implementations. |
34a7a267 | 1902 | We don't use string literals for these strings, |
1155c453 RS |
1903 | since if a string in the environment is in readonly |
1904 | storage, it runs afoul of bugs in SVR4 and Solaris 2.3. | |
1905 | See Sun bugs 1113095 and 1114114, ``Timezone routines | |
1906 | improperly modify environment''. */ | |
1907 | ||
e0bf9faf PE |
1908 | static char set_time_zone_rule_tz1[] = "TZ=GMT+0"; |
1909 | static char set_time_zone_rule_tz2[] = "TZ=GMT+1"; | |
1910 | ||
1911 | #endif | |
1155c453 | 1912 | |
c59b5089 PE |
1913 | /* Set the local time zone rule to TZSTRING. |
1914 | This allocates memory into `environ', which it is the caller's | |
1915 | responsibility to free. */ | |
acb7cc89 | 1916 | |
a92ae0ce | 1917 | void |
c59b5089 PE |
1918 | set_time_zone_rule (tzstring) |
1919 | char *tzstring; | |
1920 | { | |
1921 | int envptrs; | |
1922 | char **from, **to, **newenv; | |
1923 | ||
aafe5147 | 1924 | /* Make the ENVIRON vector longer with room for TZSTRING. */ |
143cb9a9 RS |
1925 | for (from = environ; *from; from++) |
1926 | continue; | |
1927 | envptrs = from - environ + 2; | |
1928 | newenv = to = (char **) xmalloc (envptrs * sizeof (char *) | |
1929 | + (tzstring ? strlen (tzstring) + 4 : 0)); | |
aafe5147 RS |
1930 | |
1931 | /* Add TZSTRING to the end of environ, as a value for TZ. */ | |
143cb9a9 RS |
1932 | if (tzstring) |
1933 | { | |
1934 | char *t = (char *) (to + envptrs); | |
1935 | strcpy (t, "TZ="); | |
1936 | strcat (t, tzstring); | |
1937 | *to++ = t; | |
1938 | } | |
1939 | ||
aafe5147 RS |
1940 | /* Copy the old environ vector elements into NEWENV, |
1941 | but don't copy the TZ variable. | |
1942 | So we have only one definition of TZ, which came from TZSTRING. */ | |
143cb9a9 RS |
1943 | for (from = environ; *from; from++) |
1944 | if (strncmp (*from, "TZ=", 3) != 0) | |
1945 | *to++ = *from; | |
1946 | *to = 0; | |
1947 | ||
1948 | environ = newenv; | |
143cb9a9 | 1949 | |
aafe5147 RS |
1950 | /* If we do have a TZSTRING, NEWENV points to the vector slot where |
1951 | the TZ variable is stored. If we do not have a TZSTRING, | |
1952 | TO points to the vector slot which has the terminating null. */ | |
1953 | ||
143cb9a9 | 1954 | #ifdef LOCALTIME_CACHE |
aafe5147 RS |
1955 | { |
1956 | /* In SunOS 4.1.3_U1 and 4.1.4, if TZ has a value like | |
1957 | "US/Pacific" that loads a tz file, then changes to a value like | |
1958 | "XXX0" that does not load a tz file, and then changes back to | |
1959 | its original value, the last change is (incorrectly) ignored. | |
1960 | Also, if TZ changes twice in succession to values that do | |
1961 | not load a tz file, tzset can dump core (see Sun bug#1225179). | |
1962 | The following code works around these bugs. */ | |
1963 | ||
aafe5147 RS |
1964 | if (tzstring) |
1965 | { | |
1966 | /* Temporarily set TZ to a value that loads a tz file | |
1967 | and that differs from tzstring. */ | |
1968 | char *tz = *newenv; | |
1155c453 RS |
1969 | *newenv = (strcmp (tzstring, set_time_zone_rule_tz1 + 3) == 0 |
1970 | ? set_time_zone_rule_tz2 : set_time_zone_rule_tz1); | |
aafe5147 RS |
1971 | tzset (); |
1972 | *newenv = tz; | |
1973 | } | |
1974 | else | |
1975 | { | |
1976 | /* The implied tzstring is unknown, so temporarily set TZ to | |
1977 | two different values that each load a tz file. */ | |
1155c453 | 1978 | *to = set_time_zone_rule_tz1; |
aafe5147 RS |
1979 | to[1] = 0; |
1980 | tzset (); | |
1155c453 | 1981 | *to = set_time_zone_rule_tz2; |
aafe5147 RS |
1982 | tzset (); |
1983 | *to = 0; | |
1984 | } | |
1985 | ||
1986 | /* Now TZ has the desired value, and tzset can be invoked safely. */ | |
1987 | } | |
1988 | ||
143cb9a9 RS |
1989 | tzset (); |
1990 | #endif | |
143cb9a9 | 1991 | } |
35692fe0 | 1992 | \f |
fb8106e8 KH |
1993 | /* Insert NARGS Lisp objects in the array ARGS by calling INSERT_FUNC |
1994 | (if a type of object is Lisp_Int) or INSERT_FROM_STRING_FUNC (if a | |
1995 | type of object is Lisp_String). INHERIT is passed to | |
1996 | INSERT_FROM_STRING_FUNC as the last argument. */ | |
1997 | ||
acb7cc89 | 1998 | static void |
fb8106e8 KH |
1999 | general_insert_function (insert_func, insert_from_string_func, |
2000 | inherit, nargs, args) | |
439e8af4 | 2001 | void (*insert_func) P_ ((const unsigned char *, int)); |
1f24f4fd | 2002 | void (*insert_from_string_func) P_ ((Lisp_Object, int, int, int, int, int)); |
fb8106e8 KH |
2003 | int inherit, nargs; |
2004 | register Lisp_Object *args; | |
2005 | { | |
2006 | register int argnum; | |
2007 | register Lisp_Object val; | |
2008 | ||
2009 | for (argnum = 0; argnum < nargs; argnum++) | |
2010 | { | |
2011 | val = args[argnum]; | |
2012 | retry: | |
2013 | if (INTEGERP (val)) | |
2014 | { | |
d5c2c403 | 2015 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
fb8106e8 KH |
2016 | int len; |
2017 | ||
2018 | if (!NILP (current_buffer->enable_multibyte_characters)) | |
d5c2c403 | 2019 | len = CHAR_STRING (XFASTINT (val), str); |
fb8106e8 | 2020 | else |
13c148b8 | 2021 | { |
d5c2c403 KH |
2022 | str[0] = (SINGLE_BYTE_CHAR_P (XINT (val)) |
2023 | ? XINT (val) | |
2024 | : multibyte_char_to_unibyte (XINT (val), Qnil)); | |
13c148b8 KH |
2025 | len = 1; |
2026 | } | |
fb8106e8 KH |
2027 | (*insert_func) (str, len); |
2028 | } | |
2029 | else if (STRINGP (val)) | |
2030 | { | |
1f24f4fd | 2031 | (*insert_from_string_func) (val, 0, 0, |
d5db4077 KR |
2032 | SCHARS (val), |
2033 | SBYTES (val), | |
1f24f4fd | 2034 | inherit); |
fb8106e8 KH |
2035 | } |
2036 | else | |
2037 | { | |
2038 | val = wrong_type_argument (Qchar_or_string_p, val); | |
2039 | goto retry; | |
2040 | } | |
2041 | } | |
2042 | } | |
2043 | ||
35692fe0 JB |
2044 | void |
2045 | insert1 (arg) | |
2046 | Lisp_Object arg; | |
2047 | { | |
2048 | Finsert (1, &arg); | |
2049 | } | |
2050 | ||
52b14ac0 JB |
2051 | |
2052 | /* Callers passing one argument to Finsert need not gcpro the | |
2053 | argument "array", since the only element of the array will | |
2054 | not be used after calling insert or insert_from_string, so | |
2055 | we don't care if it gets trashed. */ | |
2056 | ||
35692fe0 | 2057 | DEFUN ("insert", Finsert, Sinsert, 0, MANY, 0, |
7ee72033 | 2058 | doc: /* Insert the arguments, either strings or characters, at point. |
a1f17501 PJ |
2059 | Point and before-insertion markers move forward to end up |
2060 | after the inserted text. | |
2061 | Any other markers at the point of insertion remain before the text. | |
2062 | ||
2063 | If the current buffer is multibyte, unibyte strings are converted | |
72bb55c6 | 2064 | to multibyte for insertion (see `string-make-multibyte'). |
a1f17501 | 2065 | If the current buffer is unibyte, multibyte strings are converted |
72bb55c6 KS |
2066 | to unibyte for insertion (see `string-make-unibyte'). |
2067 | ||
2068 | When operating on binary data, it may be necessary to preserve the | |
2069 | original bytes of a unibyte string when inserting it into a multibyte | |
2070 | buffer; to accomplish this, apply `string-as-multibyte' to the string | |
2071 | and insert the result. | |
4bfbe194 MB |
2072 | |
2073 | usage: (insert &rest ARGS) */) | |
7ee72033 | 2074 | (nargs, args) |
35692fe0 JB |
2075 | int nargs; |
2076 | register Lisp_Object *args; | |
2077 | { | |
fb8106e8 | 2078 | general_insert_function (insert, insert_from_string, 0, nargs, args); |
be91036a RS |
2079 | return Qnil; |
2080 | } | |
2081 | ||
2082 | DEFUN ("insert-and-inherit", Finsert_and_inherit, Sinsert_and_inherit, | |
2083 | 0, MANY, 0, | |
7ee72033 | 2084 | doc: /* Insert the arguments at point, inheriting properties from adjoining text. |
a1f17501 PJ |
2085 | Point and before-insertion markers move forward to end up |
2086 | after the inserted text. | |
2087 | Any other markers at the point of insertion remain before the text. | |
2088 | ||
2089 | If the current buffer is multibyte, unibyte strings are converted | |
2090 | to multibyte for insertion (see `unibyte-char-to-multibyte'). | |
2091 | If the current buffer is unibyte, multibyte strings are converted | |
4bfbe194 MB |
2092 | to unibyte for insertion. |
2093 | ||
2094 | usage: (insert-and-inherit &rest ARGS) */) | |
7ee72033 | 2095 | (nargs, args) |
be91036a RS |
2096 | int nargs; |
2097 | register Lisp_Object *args; | |
2098 | { | |
fb8106e8 KH |
2099 | general_insert_function (insert_and_inherit, insert_from_string, 1, |
2100 | nargs, args); | |
35692fe0 JB |
2101 | return Qnil; |
2102 | } | |
2103 | ||
2104 | DEFUN ("insert-before-markers", Finsert_before_markers, Sinsert_before_markers, 0, MANY, 0, | |
7ee72033 | 2105 | doc: /* Insert strings or characters at point, relocating markers after the text. |
a1f17501 PJ |
2106 | Point and markers move forward to end up after the inserted text. |
2107 | ||
2108 | If the current buffer is multibyte, unibyte strings are converted | |
2109 | to multibyte for insertion (see `unibyte-char-to-multibyte'). | |
2110 | If the current buffer is unibyte, multibyte strings are converted | |
4bfbe194 MB |
2111 | to unibyte for insertion. |
2112 | ||
2113 | usage: (insert-before-markers &rest ARGS) */) | |
7ee72033 | 2114 | (nargs, args) |
35692fe0 JB |
2115 | int nargs; |
2116 | register Lisp_Object *args; | |
2117 | { | |
fb8106e8 KH |
2118 | general_insert_function (insert_before_markers, |
2119 | insert_from_string_before_markers, 0, | |
2120 | nargs, args); | |
be91036a RS |
2121 | return Qnil; |
2122 | } | |
2123 | ||
a0d76c27 EN |
2124 | DEFUN ("insert-before-markers-and-inherit", Finsert_and_inherit_before_markers, |
2125 | Sinsert_and_inherit_before_markers, 0, MANY, 0, | |
7ee72033 | 2126 | doc: /* Insert text at point, relocating markers and inheriting properties. |
a1f17501 PJ |
2127 | Point and markers move forward to end up after the inserted text. |
2128 | ||
2129 | If the current buffer is multibyte, unibyte strings are converted | |
2130 | to multibyte for insertion (see `unibyte-char-to-multibyte'). | |
2131 | If the current buffer is unibyte, multibyte strings are converted | |
4bfbe194 MB |
2132 | to unibyte for insertion. |
2133 | ||
2134 | usage: (insert-before-markers-and-inherit &rest ARGS) */) | |
7ee72033 | 2135 | (nargs, args) |
be91036a RS |
2136 | int nargs; |
2137 | register Lisp_Object *args; | |
2138 | { | |
fb8106e8 KH |
2139 | general_insert_function (insert_before_markers_and_inherit, |
2140 | insert_from_string_before_markers, 1, | |
2141 | nargs, args); | |
35692fe0 JB |
2142 | return Qnil; |
2143 | } | |
2144 | \f | |
e2eeabbb | 2145 | DEFUN ("insert-char", Finsert_char, Sinsert_char, 2, 3, 0, |
7ee72033 | 2146 | doc: /* Insert COUNT (second arg) copies of CHARACTER (first arg). |
a1f17501 PJ |
2147 | Both arguments are required. |
2148 | Point, and before-insertion markers, are relocated as in the function `insert'. | |
2149 | The optional third arg INHERIT, if non-nil, says to inherit text properties | |
7ee72033 MB |
2150 | from adjoining text, if those properties are sticky. */) |
2151 | (character, count, inherit) | |
2591ec64 | 2152 | Lisp_Object character, count, inherit; |
35692fe0 JB |
2153 | { |
2154 | register unsigned char *string; | |
2155 | register int strlen; | |
2156 | register int i, n; | |
fb8106e8 | 2157 | int len; |
d5c2c403 | 2158 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
35692fe0 | 2159 | |
b7826503 PJ |
2160 | CHECK_NUMBER (character); |
2161 | CHECK_NUMBER (count); | |
35692fe0 | 2162 | |
fb8106e8 | 2163 | if (!NILP (current_buffer->enable_multibyte_characters)) |
d5c2c403 | 2164 | len = CHAR_STRING (XFASTINT (character), str); |
fb8106e8 | 2165 | else |
d5c2c403 | 2166 | str[0] = XFASTINT (character), len = 1; |
fb8106e8 | 2167 | n = XINT (count) * len; |
35692fe0 JB |
2168 | if (n <= 0) |
2169 | return Qnil; | |
fb8106e8 | 2170 | strlen = min (n, 256 * len); |
35692fe0 JB |
2171 | string = (unsigned char *) alloca (strlen); |
2172 | for (i = 0; i < strlen; i++) | |
fb8106e8 | 2173 | string[i] = str[i % len]; |
35692fe0 JB |
2174 | while (n >= strlen) |
2175 | { | |
54e42e2d | 2176 | QUIT; |
e2eeabbb RS |
2177 | if (!NILP (inherit)) |
2178 | insert_and_inherit (string, strlen); | |
2179 | else | |
2180 | insert (string, strlen); | |
35692fe0 JB |
2181 | n -= strlen; |
2182 | } | |
2183 | if (n > 0) | |
83951f1e KH |
2184 | { |
2185 | if (!NILP (inherit)) | |
2186 | insert_and_inherit (string, n); | |
2187 | else | |
2188 | insert (string, n); | |
2189 | } | |
35692fe0 JB |
2190 | return Qnil; |
2191 | } | |
2192 | ||
2193 | \f | |
ffd56f97 JB |
2194 | /* Making strings from buffer contents. */ |
2195 | ||
2196 | /* Return a Lisp_String containing the text of the current buffer from | |
74d6d8c5 | 2197 | START to END. If text properties are in use and the current buffer |
eb8c3be9 | 2198 | has properties in the range specified, the resulting string will also |
260e2e2a | 2199 | have them, if PROPS is nonzero. |
ffd56f97 JB |
2200 | |
2201 | We don't want to use plain old make_string here, because it calls | |
2202 | make_uninit_string, which can cause the buffer arena to be | |
2203 | compacted. make_string has no way of knowing that the data has | |
2204 | been moved, and thus copies the wrong data into the string. This | |
2205 | doesn't effect most of the other users of make_string, so it should | |
2206 | be left as is. But we should use this function when conjuring | |
2207 | buffer substrings. */ | |
74d6d8c5 | 2208 | |
ffd56f97 | 2209 | Lisp_Object |
260e2e2a | 2210 | make_buffer_string (start, end, props) |
ffd56f97 | 2211 | int start, end; |
260e2e2a | 2212 | int props; |
ffd56f97 | 2213 | { |
ec1c14f6 RS |
2214 | int start_byte = CHAR_TO_BYTE (start); |
2215 | int end_byte = CHAR_TO_BYTE (end); | |
ffd56f97 | 2216 | |
88441c8e RS |
2217 | return make_buffer_string_both (start, start_byte, end, end_byte, props); |
2218 | } | |
2219 | ||
2220 | /* Return a Lisp_String containing the text of the current buffer from | |
2221 | START / START_BYTE to END / END_BYTE. | |
2222 | ||
2223 | If text properties are in use and the current buffer | |
2224 | has properties in the range specified, the resulting string will also | |
2225 | have them, if PROPS is nonzero. | |
2226 | ||
2227 | We don't want to use plain old make_string here, because it calls | |
2228 | make_uninit_string, which can cause the buffer arena to be | |
2229 | compacted. make_string has no way of knowing that the data has | |
2230 | been moved, and thus copies the wrong data into the string. This | |
2231 | doesn't effect most of the other users of make_string, so it should | |
2232 | be left as is. But we should use this function when conjuring | |
2233 | buffer substrings. */ | |
2234 | ||
2235 | Lisp_Object | |
2236 | make_buffer_string_both (start, start_byte, end, end_byte, props) | |
2237 | int start, start_byte, end, end_byte; | |
2238 | int props; | |
2239 | { | |
2240 | Lisp_Object result, tem, tem1; | |
2241 | ||
ffd56f97 JB |
2242 | if (start < GPT && GPT < end) |
2243 | move_gap (start); | |
2244 | ||
5f75e666 RS |
2245 | if (! NILP (current_buffer->enable_multibyte_characters)) |
2246 | result = make_uninit_multibyte_string (end - start, end_byte - start_byte); | |
2247 | else | |
2248 | result = make_uninit_string (end - start); | |
d5db4077 | 2249 | bcopy (BYTE_POS_ADDR (start_byte), SDATA (result), |
ec1c14f6 | 2250 | end_byte - start_byte); |
ffd56f97 | 2251 | |
260e2e2a | 2252 | /* If desired, update and copy the text properties. */ |
260e2e2a KH |
2253 | if (props) |
2254 | { | |
2255 | update_buffer_properties (start, end); | |
2256 | ||
2257 | tem = Fnext_property_change (make_number (start), Qnil, make_number (end)); | |
2258 | tem1 = Ftext_properties_at (make_number (start), Qnil); | |
2259 | ||
2260 | if (XINT (tem) != end || !NILP (tem1)) | |
ec1c14f6 RS |
2261 | copy_intervals_to_string (result, current_buffer, start, |
2262 | end - start); | |
260e2e2a | 2263 | } |
74d6d8c5 | 2264 | |
ffd56f97 JB |
2265 | return result; |
2266 | } | |
35692fe0 | 2267 | |
260e2e2a KH |
2268 | /* Call Vbuffer_access_fontify_functions for the range START ... END |
2269 | in the current buffer, if necessary. */ | |
2270 | ||
2271 | static void | |
2272 | update_buffer_properties (start, end) | |
2273 | int start, end; | |
2274 | { | |
260e2e2a KH |
2275 | /* If this buffer has some access functions, |
2276 | call them, specifying the range of the buffer being accessed. */ | |
2277 | if (!NILP (Vbuffer_access_fontify_functions)) | |
2278 | { | |
2279 | Lisp_Object args[3]; | |
2280 | Lisp_Object tem; | |
2281 | ||
2282 | args[0] = Qbuffer_access_fontify_functions; | |
2283 | XSETINT (args[1], start); | |
2284 | XSETINT (args[2], end); | |
2285 | ||
2286 | /* But don't call them if we can tell that the work | |
2287 | has already been done. */ | |
2288 | if (!NILP (Vbuffer_access_fontified_property)) | |
2289 | { | |
2290 | tem = Ftext_property_any (args[1], args[2], | |
2291 | Vbuffer_access_fontified_property, | |
2292 | Qnil, Qnil); | |
2293 | if (! NILP (tem)) | |
ced1d19a | 2294 | Frun_hook_with_args (3, args); |
260e2e2a KH |
2295 | } |
2296 | else | |
ced1d19a | 2297 | Frun_hook_with_args (3, args); |
260e2e2a | 2298 | } |
260e2e2a KH |
2299 | } |
2300 | ||
35692fe0 | 2301 | DEFUN ("buffer-substring", Fbuffer_substring, Sbuffer_substring, 2, 2, 0, |
7ee72033 | 2302 | doc: /* Return the contents of part of the current buffer as a string. |
a1f17501 PJ |
2303 | The two arguments START and END are character positions; |
2304 | they can be in either order. | |
2305 | The string returned is multibyte if the buffer is multibyte. | |
2306 | ||
2307 | This function copies the text properties of that part of the buffer | |
2308 | into the result string; if you don't want the text properties, | |
7ee72033 MB |
2309 | use `buffer-substring-no-properties' instead. */) |
2310 | (start, end) | |
2591ec64 | 2311 | Lisp_Object start, end; |
35692fe0 | 2312 | { |
2591ec64 | 2313 | register int b, e; |
35692fe0 | 2314 | |
2591ec64 EN |
2315 | validate_region (&start, &end); |
2316 | b = XINT (start); | |
2317 | e = XINT (end); | |
35692fe0 | 2318 | |
2591ec64 | 2319 | return make_buffer_string (b, e, 1); |
260e2e2a KH |
2320 | } |
2321 | ||
2322 | DEFUN ("buffer-substring-no-properties", Fbuffer_substring_no_properties, | |
2323 | Sbuffer_substring_no_properties, 2, 2, 0, | |
7ee72033 | 2324 | doc: /* Return the characters of part of the buffer, without the text properties. |
a1f17501 | 2325 | The two arguments START and END are character positions; |
7ee72033 MB |
2326 | they can be in either order. */) |
2327 | (start, end) | |
2591ec64 | 2328 | Lisp_Object start, end; |
260e2e2a | 2329 | { |
2591ec64 | 2330 | register int b, e; |
260e2e2a | 2331 | |
2591ec64 EN |
2332 | validate_region (&start, &end); |
2333 | b = XINT (start); | |
2334 | e = XINT (end); | |
260e2e2a | 2335 | |
2591ec64 | 2336 | return make_buffer_string (b, e, 0); |
35692fe0 JB |
2337 | } |
2338 | ||
2339 | DEFUN ("buffer-string", Fbuffer_string, Sbuffer_string, 0, 0, 0, | |
7ee72033 | 2340 | doc: /* Return the contents of the current buffer as a string. |
a1f17501 | 2341 | If narrowing is in effect, this function returns only the visible part |
7ee72033 MB |
2342 | of the buffer. */) |
2343 | () | |
35692fe0 | 2344 | { |
0daf6e8d | 2345 | return make_buffer_string (BEGV, ZV, 1); |
35692fe0 JB |
2346 | } |
2347 | ||
2348 | DEFUN ("insert-buffer-substring", Finsert_buffer_substring, Sinsert_buffer_substring, | |
deb8e082 | 2349 | 1, 3, 0, |
7ee72033 | 2350 | doc: /* Insert before point a substring of the contents of buffer BUFFER. |
a1f17501 PJ |
2351 | BUFFER may be a buffer or a buffer name. |
2352 | Arguments START and END are character numbers specifying the substring. | |
7ee72033 MB |
2353 | They default to the beginning and the end of BUFFER. */) |
2354 | (buf, start, end) | |
2591ec64 | 2355 | Lisp_Object buf, start, end; |
35692fe0 | 2356 | { |
2591ec64 | 2357 | register int b, e, temp; |
260e2e2a | 2358 | register struct buffer *bp, *obuf; |
3fff2dfa | 2359 | Lisp_Object buffer; |
35692fe0 | 2360 | |
3fff2dfa RS |
2361 | buffer = Fget_buffer (buf); |
2362 | if (NILP (buffer)) | |
2363 | nsberror (buf); | |
2364 | bp = XBUFFER (buffer); | |
93b62e82 KH |
2365 | if (NILP (bp->name)) |
2366 | error ("Selecting deleted buffer"); | |
35692fe0 | 2367 | |
2591ec64 EN |
2368 | if (NILP (start)) |
2369 | b = BUF_BEGV (bp); | |
35692fe0 JB |
2370 | else |
2371 | { | |
b7826503 | 2372 | CHECK_NUMBER_COERCE_MARKER (start); |
2591ec64 | 2373 | b = XINT (start); |
35692fe0 | 2374 | } |
2591ec64 EN |
2375 | if (NILP (end)) |
2376 | e = BUF_ZV (bp); | |
35692fe0 JB |
2377 | else |
2378 | { | |
b7826503 | 2379 | CHECK_NUMBER_COERCE_MARKER (end); |
2591ec64 | 2380 | e = XINT (end); |
35692fe0 JB |
2381 | } |
2382 | ||
2591ec64 EN |
2383 | if (b > e) |
2384 | temp = b, b = e, e = temp; | |
35692fe0 | 2385 | |
2591ec64 EN |
2386 | if (!(BUF_BEGV (bp) <= b && e <= BUF_ZV (bp))) |
2387 | args_out_of_range (start, end); | |
35692fe0 | 2388 | |
260e2e2a KH |
2389 | obuf = current_buffer; |
2390 | set_buffer_internal_1 (bp); | |
2591ec64 | 2391 | update_buffer_properties (b, e); |
260e2e2a KH |
2392 | set_buffer_internal_1 (obuf); |
2393 | ||
2591ec64 | 2394 | insert_from_buffer (bp, b, e - b, 0); |
35692fe0 JB |
2395 | return Qnil; |
2396 | } | |
e9cf2084 RS |
2397 | |
2398 | DEFUN ("compare-buffer-substrings", Fcompare_buffer_substrings, Scompare_buffer_substrings, | |
deb8e082 | 2399 | 6, 6, 0, |
7ee72033 | 2400 | doc: /* Compare two substrings of two buffers; return result as number. |
a1f17501 PJ |
2401 | the value is -N if first string is less after N-1 chars, |
2402 | +N if first string is greater after N-1 chars, or 0 if strings match. | |
2403 | Each substring is represented as three arguments: BUFFER, START and END. | |
2404 | That makes six args in all, three for each substring. | |
2405 | ||
2406 | The value of `case-fold-search' in the current buffer | |
7ee72033 MB |
2407 | determines whether case is significant or ignored. */) |
2408 | (buffer1, start1, end1, buffer2, start2, end2) | |
e9cf2084 RS |
2409 | Lisp_Object buffer1, start1, end1, buffer2, start2, end2; |
2410 | { | |
07422a12 | 2411 | register int begp1, endp1, begp2, endp2, temp; |
e9cf2084 | 2412 | register struct buffer *bp1, *bp2; |
2a8b0ff0 | 2413 | register Lisp_Object *trt |
e9cf2084 | 2414 | = (!NILP (current_buffer->case_fold_search) |
2a8b0ff0 | 2415 | ? XCHAR_TABLE (current_buffer->case_canon_table)->contents : 0); |
ec1c14f6 | 2416 | int chars = 0; |
07422a12 | 2417 | int i1, i2, i1_byte, i2_byte; |
e9cf2084 RS |
2418 | |
2419 | /* Find the first buffer and its substring. */ | |
2420 | ||
2421 | if (NILP (buffer1)) | |
2422 | bp1 = current_buffer; | |
2423 | else | |
2424 | { | |
3fff2dfa RS |
2425 | Lisp_Object buf1; |
2426 | buf1 = Fget_buffer (buffer1); | |
2427 | if (NILP (buf1)) | |
2428 | nsberror (buffer1); | |
2429 | bp1 = XBUFFER (buf1); | |
93b62e82 KH |
2430 | if (NILP (bp1->name)) |
2431 | error ("Selecting deleted buffer"); | |
e9cf2084 RS |
2432 | } |
2433 | ||
2434 | if (NILP (start1)) | |
2435 | begp1 = BUF_BEGV (bp1); | |
2436 | else | |
2437 | { | |
b7826503 | 2438 | CHECK_NUMBER_COERCE_MARKER (start1); |
e9cf2084 RS |
2439 | begp1 = XINT (start1); |
2440 | } | |
2441 | if (NILP (end1)) | |
2442 | endp1 = BUF_ZV (bp1); | |
2443 | else | |
2444 | { | |
b7826503 | 2445 | CHECK_NUMBER_COERCE_MARKER (end1); |
e9cf2084 RS |
2446 | endp1 = XINT (end1); |
2447 | } | |
2448 | ||
2449 | if (begp1 > endp1) | |
2450 | temp = begp1, begp1 = endp1, endp1 = temp; | |
2451 | ||
2452 | if (!(BUF_BEGV (bp1) <= begp1 | |
2453 | && begp1 <= endp1 | |
2454 | && endp1 <= BUF_ZV (bp1))) | |
2455 | args_out_of_range (start1, end1); | |
2456 | ||
2457 | /* Likewise for second substring. */ | |
2458 | ||
2459 | if (NILP (buffer2)) | |
2460 | bp2 = current_buffer; | |
2461 | else | |
2462 | { | |
3fff2dfa RS |
2463 | Lisp_Object buf2; |
2464 | buf2 = Fget_buffer (buffer2); | |
2465 | if (NILP (buf2)) | |
2466 | nsberror (buffer2); | |
3b1fdd85 | 2467 | bp2 = XBUFFER (buf2); |
93b62e82 KH |
2468 | if (NILP (bp2->name)) |
2469 | error ("Selecting deleted buffer"); | |
e9cf2084 RS |
2470 | } |
2471 | ||
2472 | if (NILP (start2)) | |
2473 | begp2 = BUF_BEGV (bp2); | |
2474 | else | |
2475 | { | |
b7826503 | 2476 | CHECK_NUMBER_COERCE_MARKER (start2); |
e9cf2084 RS |
2477 | begp2 = XINT (start2); |
2478 | } | |
2479 | if (NILP (end2)) | |
2480 | endp2 = BUF_ZV (bp2); | |
2481 | else | |
2482 | { | |
b7826503 | 2483 | CHECK_NUMBER_COERCE_MARKER (end2); |
e9cf2084 RS |
2484 | endp2 = XINT (end2); |
2485 | } | |
2486 | ||
2487 | if (begp2 > endp2) | |
2488 | temp = begp2, begp2 = endp2, endp2 = temp; | |
2489 | ||
2490 | if (!(BUF_BEGV (bp2) <= begp2 | |
2491 | && begp2 <= endp2 | |
2492 | && endp2 <= BUF_ZV (bp2))) | |
2493 | args_out_of_range (start2, end2); | |
2494 | ||
07422a12 RS |
2495 | i1 = begp1; |
2496 | i2 = begp2; | |
2497 | i1_byte = buf_charpos_to_bytepos (bp1, i1); | |
2498 | i2_byte = buf_charpos_to_bytepos (bp2, i2); | |
e9cf2084 | 2499 | |
07422a12 | 2500 | while (i1 < endp1 && i2 < endp2) |
e9cf2084 | 2501 | { |
07422a12 RS |
2502 | /* When we find a mismatch, we must compare the |
2503 | characters, not just the bytes. */ | |
2504 | int c1, c2; | |
ec1c14f6 | 2505 | |
2221451f RS |
2506 | QUIT; |
2507 | ||
07422a12 RS |
2508 | if (! NILP (bp1->enable_multibyte_characters)) |
2509 | { | |
2510 | c1 = BUF_FETCH_MULTIBYTE_CHAR (bp1, i1_byte); | |
2511 | BUF_INC_POS (bp1, i1_byte); | |
2512 | i1++; | |
2513 | } | |
2514 | else | |
2515 | { | |
2516 | c1 = BUF_FETCH_BYTE (bp1, i1); | |
2517 | c1 = unibyte_char_to_multibyte (c1); | |
2518 | i1++; | |
2519 | } | |
2520 | ||
2521 | if (! NILP (bp2->enable_multibyte_characters)) | |
2522 | { | |
2523 | c2 = BUF_FETCH_MULTIBYTE_CHAR (bp2, i2_byte); | |
2524 | BUF_INC_POS (bp2, i2_byte); | |
2525 | i2++; | |
2526 | } | |
2527 | else | |
2528 | { | |
2529 | c2 = BUF_FETCH_BYTE (bp2, i2); | |
2530 | c2 = unibyte_char_to_multibyte (c2); | |
2531 | i2++; | |
2532 | } | |
ec1c14f6 | 2533 | |
e9cf2084 RS |
2534 | if (trt) |
2535 | { | |
1b10fb77 RS |
2536 | c1 = XINT (trt[c1]); |
2537 | c2 = XINT (trt[c2]); | |
e9cf2084 RS |
2538 | } |
2539 | if (c1 < c2) | |
ec1c14f6 | 2540 | return make_number (- 1 - chars); |
e9cf2084 | 2541 | if (c1 > c2) |
ec1c14f6 | 2542 | return make_number (chars + 1); |
07422a12 RS |
2543 | |
2544 | chars++; | |
e9cf2084 RS |
2545 | } |
2546 | ||
2547 | /* The strings match as far as they go. | |
2548 | If one is shorter, that one is less. */ | |
07422a12 | 2549 | if (chars < endp1 - begp1) |
ec1c14f6 | 2550 | return make_number (chars + 1); |
07422a12 | 2551 | else if (chars < endp2 - begp2) |
ec1c14f6 | 2552 | return make_number (- chars - 1); |
e9cf2084 RS |
2553 | |
2554 | /* Same length too => they are equal. */ | |
2555 | return make_number (0); | |
2556 | } | |
35692fe0 | 2557 | \f |
d5a539cd RS |
2558 | static Lisp_Object |
2559 | subst_char_in_region_unwind (arg) | |
2560 | Lisp_Object arg; | |
2561 | { | |
2562 | return current_buffer->undo_list = arg; | |
2563 | } | |
2564 | ||
c8e76b47 RS |
2565 | static Lisp_Object |
2566 | subst_char_in_region_unwind_1 (arg) | |
2567 | Lisp_Object arg; | |
2568 | { | |
2569 | return current_buffer->filename = arg; | |
2570 | } | |
2571 | ||
35692fe0 | 2572 | DEFUN ("subst-char-in-region", Fsubst_char_in_region, |
deb8e082 | 2573 | Ssubst_char_in_region, 4, 5, 0, |
7ee72033 | 2574 | doc: /* From START to END, replace FROMCHAR with TOCHAR each time it occurs. |
a1f17501 PJ |
2575 | If optional arg NOUNDO is non-nil, don't record this change for undo |
2576 | and don't mark the buffer as really changed. | |
7ee72033 MB |
2577 | Both characters must have the same length of multi-byte form. */) |
2578 | (start, end, fromchar, tochar, noundo) | |
35692fe0 JB |
2579 | Lisp_Object start, end, fromchar, tochar, noundo; |
2580 | { | |
84246b95 | 2581 | register int pos, pos_byte, stop, i, len, end_byte; |
60b96ee7 | 2582 | int changed = 0; |
d5c2c403 KH |
2583 | unsigned char fromstr[MAX_MULTIBYTE_LENGTH], tostr[MAX_MULTIBYTE_LENGTH]; |
2584 | unsigned char *p; | |
aed13378 | 2585 | int count = SPECPDL_INDEX (); |
aa801467 KH |
2586 | #define COMBINING_NO 0 |
2587 | #define COMBINING_BEFORE 1 | |
2588 | #define COMBINING_AFTER 2 | |
2589 | #define COMBINING_BOTH (COMBINING_BEFORE | COMBINING_AFTER) | |
2590 | int maybe_byte_combining = COMBINING_NO; | |
2483cf58 | 2591 | int last_changed = 0; |
7439e5b9 | 2592 | int multibyte_p = !NILP (current_buffer->enable_multibyte_characters); |
35692fe0 JB |
2593 | |
2594 | validate_region (&start, &end); | |
b7826503 PJ |
2595 | CHECK_NUMBER (fromchar); |
2596 | CHECK_NUMBER (tochar); | |
35692fe0 | 2597 | |
7439e5b9 | 2598 | if (multibyte_p) |
fb8106e8 | 2599 | { |
d5c2c403 KH |
2600 | len = CHAR_STRING (XFASTINT (fromchar), fromstr); |
2601 | if (CHAR_STRING (XFASTINT (tochar), tostr) != len) | |
fb8106e8 | 2602 | error ("Characters in subst-char-in-region have different byte-lengths"); |
aa801467 KH |
2603 | if (!ASCII_BYTE_P (*tostr)) |
2604 | { | |
2605 | /* If *TOSTR is in the range 0x80..0x9F and TOCHAR is not a | |
2606 | complete multibyte character, it may be combined with the | |
2607 | after bytes. If it is in the range 0xA0..0xFF, it may be | |
2608 | combined with the before and after bytes. */ | |
2609 | if (!CHAR_HEAD_P (*tostr)) | |
2610 | maybe_byte_combining = COMBINING_BOTH; | |
2611 | else if (BYTES_BY_CHAR_HEAD (*tostr) > len) | |
2612 | maybe_byte_combining = COMBINING_AFTER; | |
2613 | } | |
fb8106e8 KH |
2614 | } |
2615 | else | |
2616 | { | |
2617 | len = 1; | |
d5c2c403 KH |
2618 | fromstr[0] = XFASTINT (fromchar); |
2619 | tostr[0] = XFASTINT (tochar); | |
fb8106e8 KH |
2620 | } |
2621 | ||
84246b95 KH |
2622 | pos = XINT (start); |
2623 | pos_byte = CHAR_TO_BYTE (pos); | |
ec1c14f6 RS |
2624 | stop = CHAR_TO_BYTE (XINT (end)); |
2625 | end_byte = stop; | |
35692fe0 | 2626 | |
d5a539cd RS |
2627 | /* If we don't want undo, turn off putting stuff on the list. |
2628 | That's faster than getting rid of things, | |
c8e76b47 RS |
2629 | and it prevents even the entry for a first change. |
2630 | Also inhibit locking the file. */ | |
d5a539cd RS |
2631 | if (!NILP (noundo)) |
2632 | { | |
2633 | record_unwind_protect (subst_char_in_region_unwind, | |
2634 | current_buffer->undo_list); | |
2635 | current_buffer->undo_list = Qt; | |
c8e76b47 RS |
2636 | /* Don't do file-locking. */ |
2637 | record_unwind_protect (subst_char_in_region_unwind_1, | |
2638 | current_buffer->filename); | |
2639 | current_buffer->filename = Qnil; | |
d5a539cd RS |
2640 | } |
2641 | ||
84246b95 | 2642 | if (pos_byte < GPT_BYTE) |
ec1c14f6 | 2643 | stop = min (stop, GPT_BYTE); |
fb8106e8 | 2644 | while (1) |
35692fe0 | 2645 | { |
a3360ff9 KH |
2646 | int pos_byte_next = pos_byte; |
2647 | ||
84246b95 | 2648 | if (pos_byte >= stop) |
fb8106e8 | 2649 | { |
84246b95 | 2650 | if (pos_byte >= end_byte) break; |
ec1c14f6 | 2651 | stop = end_byte; |
fb8106e8 | 2652 | } |
84246b95 | 2653 | p = BYTE_POS_ADDR (pos_byte); |
7439e5b9 GM |
2654 | if (multibyte_p) |
2655 | INC_POS (pos_byte_next); | |
2656 | else | |
2657 | ++pos_byte_next; | |
a3360ff9 KH |
2658 | if (pos_byte_next - pos_byte == len |
2659 | && p[0] == fromstr[0] | |
fb8106e8 KH |
2660 | && (len == 1 |
2661 | || (p[1] == fromstr[1] | |
2662 | && (len == 2 || (p[2] == fromstr[2] | |
2663 | && (len == 3 || p[3] == fromstr[3])))))) | |
35692fe0 | 2664 | { |
60b96ee7 RS |
2665 | if (! changed) |
2666 | { | |
d5c2c403 KH |
2667 | changed = pos; |
2668 | modify_region (current_buffer, changed, XINT (end)); | |
7653d030 RS |
2669 | |
2670 | if (! NILP (noundo)) | |
2671 | { | |
1e158d25 RS |
2672 | if (MODIFF - 1 == SAVE_MODIFF) |
2673 | SAVE_MODIFF++; | |
7653d030 RS |
2674 | if (MODIFF - 1 == current_buffer->auto_save_modified) |
2675 | current_buffer->auto_save_modified++; | |
2676 | } | |
60b96ee7 RS |
2677 | } |
2678 | ||
0c1e3b85 | 2679 | /* Take care of the case where the new character |
34a7a267 | 2680 | combines with neighboring bytes. */ |
a3360ff9 | 2681 | if (maybe_byte_combining |
aa801467 KH |
2682 | && (maybe_byte_combining == COMBINING_AFTER |
2683 | ? (pos_byte_next < Z_BYTE | |
2684 | && ! CHAR_HEAD_P (FETCH_BYTE (pos_byte_next))) | |
2685 | : ((pos_byte_next < Z_BYTE | |
2686 | && ! CHAR_HEAD_P (FETCH_BYTE (pos_byte_next))) | |
2687 | || (pos_byte > BEG_BYTE | |
2688 | && ! ASCII_BYTE_P (FETCH_BYTE (pos_byte - 1)))))) | |
0c1e3b85 RS |
2689 | { |
2690 | Lisp_Object tem, string; | |
2691 | ||
2692 | struct gcpro gcpro1; | |
2693 | ||
2694 | tem = current_buffer->undo_list; | |
2695 | GCPRO1 (tem); | |
2696 | ||
aa801467 KH |
2697 | /* Make a multibyte string containing this single character. */ |
2698 | string = make_multibyte_string (tostr, 1, len); | |
0c1e3b85 RS |
2699 | /* replace_range is less efficient, because it moves the gap, |
2700 | but it handles combining correctly. */ | |
2701 | replace_range (pos, pos + 1, string, | |
9869520f | 2702 | 0, 0, 1); |
a3360ff9 KH |
2703 | pos_byte_next = CHAR_TO_BYTE (pos); |
2704 | if (pos_byte_next > pos_byte) | |
2705 | /* Before combining happened. We should not increment | |
3f5409d3 KH |
2706 | POS. So, to cancel the later increment of POS, |
2707 | decrease it now. */ | |
2708 | pos--; | |
a3360ff9 | 2709 | else |
3f5409d3 | 2710 | INC_POS (pos_byte_next); |
34a7a267 | 2711 | |
0c1e3b85 RS |
2712 | if (! NILP (noundo)) |
2713 | current_buffer->undo_list = tem; | |
2714 | ||
2715 | UNGCPRO; | |
2716 | } | |
2717 | else | |
2718 | { | |
2719 | if (NILP (noundo)) | |
2720 | record_change (pos, 1); | |
2721 | for (i = 0; i < len; i++) *p++ = tostr[i]; | |
2722 | } | |
d5c2c403 | 2723 | last_changed = pos + 1; |
35692fe0 | 2724 | } |
3f5409d3 KH |
2725 | pos_byte = pos_byte_next; |
2726 | pos++; | |
35692fe0 JB |
2727 | } |
2728 | ||
60b96ee7 | 2729 | if (changed) |
d5c2c403 KH |
2730 | { |
2731 | signal_after_change (changed, | |
2732 | last_changed - changed, last_changed - changed); | |
2733 | update_compositions (changed, last_changed, CHECK_ALL); | |
2734 | } | |
60b96ee7 | 2735 | |
d5a539cd | 2736 | unbind_to (count, Qnil); |
35692fe0 JB |
2737 | return Qnil; |
2738 | } | |
2739 | ||
2740 | DEFUN ("translate-region", Ftranslate_region, Stranslate_region, 3, 3, 0, | |
7ee72033 | 2741 | doc: /* From START to END, translate characters according to TABLE. |
a1f17501 PJ |
2742 | TABLE is a string; the Nth character in it is the mapping |
2743 | for the character with code N. | |
2744 | This function does not alter multibyte characters. | |
7ee72033 MB |
2745 | It returns the number of characters changed. */) |
2746 | (start, end, table) | |
35692fe0 JB |
2747 | Lisp_Object start; |
2748 | Lisp_Object end; | |
2749 | register Lisp_Object table; | |
2750 | { | |
ec1c14f6 | 2751 | register int pos_byte, stop; /* Limits of the region. */ |
35692fe0 | 2752 | register unsigned char *tt; /* Trans table. */ |
35692fe0 JB |
2753 | register int nc; /* New character. */ |
2754 | int cnt; /* Number of changes made. */ | |
35692fe0 | 2755 | int size; /* Size of translate table. */ |
1f24f4fd | 2756 | int pos; |
e8cce5af | 2757 | int multibyte = !NILP (current_buffer->enable_multibyte_characters); |
35692fe0 JB |
2758 | |
2759 | validate_region (&start, &end); | |
b7826503 | 2760 | CHECK_STRING (table); |
35692fe0 | 2761 | |
d5db4077 KR |
2762 | size = SBYTES (table); |
2763 | tt = SDATA (table); | |
35692fe0 | 2764 | |
ec1c14f6 RS |
2765 | pos_byte = CHAR_TO_BYTE (XINT (start)); |
2766 | stop = CHAR_TO_BYTE (XINT (end)); | |
2767 | modify_region (current_buffer, XINT (start), XINT (end)); | |
1f24f4fd | 2768 | pos = XINT (start); |
35692fe0 JB |
2769 | |
2770 | cnt = 0; | |
1f24f4fd | 2771 | for (; pos_byte < stop; ) |
35692fe0 | 2772 | { |
ec1c14f6 | 2773 | register unsigned char *p = BYTE_POS_ADDR (pos_byte); |
1f24f4fd RS |
2774 | int len; |
2775 | int oc; | |
a3360ff9 | 2776 | int pos_byte_next; |
ec1c14f6 | 2777 | |
e8cce5af KH |
2778 | if (multibyte) |
2779 | oc = STRING_CHAR_AND_LENGTH (p, stop - pos_byte, len); | |
2780 | else | |
2781 | oc = *p, len = 1; | |
a3360ff9 | 2782 | pos_byte_next = pos_byte + len; |
1f24f4fd | 2783 | if (oc < size && len == 1) |
35692fe0 JB |
2784 | { |
2785 | nc = tt[oc]; | |
2786 | if (nc != oc) | |
2787 | { | |
0c1e3b85 | 2788 | /* Take care of the case where the new character |
34a7a267 | 2789 | combines with neighboring bytes. */ |
a3360ff9 KH |
2790 | if (!ASCII_BYTE_P (nc) |
2791 | && (CHAR_HEAD_P (nc) | |
2792 | ? ! CHAR_HEAD_P (FETCH_BYTE (pos_byte + 1)) | |
48839d2e | 2793 | : (pos_byte > BEG_BYTE |
a3360ff9 | 2794 | && ! ASCII_BYTE_P (FETCH_BYTE (pos_byte - 1))))) |
0c1e3b85 RS |
2795 | { |
2796 | Lisp_Object string; | |
2797 | ||
a3360ff9 | 2798 | string = make_multibyte_string (tt + oc, 1, 1); |
0c1e3b85 RS |
2799 | /* This is less efficient, because it moves the gap, |
2800 | but it handles combining correctly. */ | |
2801 | replace_range (pos, pos + 1, string, | |
a3360ff9 KH |
2802 | 1, 0, 1); |
2803 | pos_byte_next = CHAR_TO_BYTE (pos); | |
2804 | if (pos_byte_next > pos_byte) | |
2805 | /* Before combining happened. We should not | |
3f5409d3 KH |
2806 | increment POS. So, to cancel the later |
2807 | increment of POS, we decrease it now. */ | |
2808 | pos--; | |
a3360ff9 | 2809 | else |
3f5409d3 | 2810 | INC_POS (pos_byte_next); |
0c1e3b85 RS |
2811 | } |
2812 | else | |
2813 | { | |
2814 | record_change (pos, 1); | |
2815 | *p = nc; | |
2816 | signal_after_change (pos, 1, 1); | |
d5c2c403 | 2817 | update_compositions (pos, pos + 1, CHECK_BORDER); |
0c1e3b85 | 2818 | } |
35692fe0 JB |
2819 | ++cnt; |
2820 | } | |
2821 | } | |
3f5409d3 KH |
2822 | pos_byte = pos_byte_next; |
2823 | pos++; | |
35692fe0 JB |
2824 | } |
2825 | ||
ec1c14f6 | 2826 | return make_number (cnt); |
35692fe0 JB |
2827 | } |
2828 | ||
2829 | DEFUN ("delete-region", Fdelete_region, Sdelete_region, 2, 2, "r", | |
7ee72033 | 2830 | doc: /* Delete the text between point and mark. |
a1f17501 | 2831 | When called from a program, expects two arguments, |
7ee72033 MB |
2832 | positions (integers or markers) specifying the stretch to be deleted. */) |
2833 | (start, end) | |
2591ec64 | 2834 | Lisp_Object start, end; |
35692fe0 | 2835 | { |
2591ec64 EN |
2836 | validate_region (&start, &end); |
2837 | del_range (XINT (start), XINT (end)); | |
35692fe0 JB |
2838 | return Qnil; |
2839 | } | |
7dae4502 SM |
2840 | |
2841 | DEFUN ("delete-and-extract-region", Fdelete_and_extract_region, | |
2842 | Sdelete_and_extract_region, 2, 2, 0, | |
7ee72033 MB |
2843 | doc: /* Delete the text between START and END and return it. */) |
2844 | (start, end) | |
7dae4502 SM |
2845 | Lisp_Object start, end; |
2846 | { | |
2847 | validate_region (&start, &end); | |
2848 | return del_range_1 (XINT (start), XINT (end), 1, 1); | |
2849 | } | |
35692fe0 JB |
2850 | \f |
2851 | DEFUN ("widen", Fwiden, Swiden, 0, 0, "", | |
7ee72033 MB |
2852 | doc: /* Remove restrictions (narrowing) from current buffer. |
2853 | This allows the buffer's full text to be seen and edited. */) | |
2854 | () | |
35692fe0 | 2855 | { |
2cad2e34 RS |
2856 | if (BEG != BEGV || Z != ZV) |
2857 | current_buffer->clip_changed = 1; | |
35692fe0 | 2858 | BEGV = BEG; |
ec1c14f6 RS |
2859 | BEGV_BYTE = BEG_BYTE; |
2860 | SET_BUF_ZV_BOTH (current_buffer, Z, Z_BYTE); | |
52b14ac0 JB |
2861 | /* Changing the buffer bounds invalidates any recorded current column. */ |
2862 | invalidate_current_column (); | |
35692fe0 JB |
2863 | return Qnil; |
2864 | } | |
2865 | ||
2866 | DEFUN ("narrow-to-region", Fnarrow_to_region, Snarrow_to_region, 2, 2, "r", | |
7ee72033 | 2867 | doc: /* Restrict editing in this buffer to the current region. |
a1f17501 PJ |
2868 | The rest of the text becomes temporarily invisible and untouchable |
2869 | but is not deleted; if you save the buffer in a file, the invisible | |
2870 | text is included in the file. \\[widen] makes all visible again. | |
2871 | See also `save-restriction'. | |
2872 | ||
2873 | When calling from a program, pass two arguments; positions (integers | |
7ee72033 MB |
2874 | or markers) bounding the text that should remain visible. */) |
2875 | (start, end) | |
2591ec64 | 2876 | register Lisp_Object start, end; |
35692fe0 | 2877 | { |
b7826503 PJ |
2878 | CHECK_NUMBER_COERCE_MARKER (start); |
2879 | CHECK_NUMBER_COERCE_MARKER (end); | |
35692fe0 | 2880 | |
2591ec64 | 2881 | if (XINT (start) > XINT (end)) |
35692fe0 | 2882 | { |
b5a6948e | 2883 | Lisp_Object tem; |
2591ec64 | 2884 | tem = start; start = end; end = tem; |
35692fe0 JB |
2885 | } |
2886 | ||
2591ec64 EN |
2887 | if (!(BEG <= XINT (start) && XINT (start) <= XINT (end) && XINT (end) <= Z)) |
2888 | args_out_of_range (start, end); | |
35692fe0 | 2889 | |
2cad2e34 RS |
2890 | if (BEGV != XFASTINT (start) || ZV != XFASTINT (end)) |
2891 | current_buffer->clip_changed = 1; | |
2892 | ||
ec1c14f6 | 2893 | SET_BUF_BEGV (current_buffer, XFASTINT (start)); |
2591ec64 | 2894 | SET_BUF_ZV (current_buffer, XFASTINT (end)); |
6ec8bbd2 | 2895 | if (PT < XFASTINT (start)) |
2591ec64 | 2896 | SET_PT (XFASTINT (start)); |
6ec8bbd2 | 2897 | if (PT > XFASTINT (end)) |
2591ec64 | 2898 | SET_PT (XFASTINT (end)); |
52b14ac0 JB |
2899 | /* Changing the buffer bounds invalidates any recorded current column. */ |
2900 | invalidate_current_column (); | |
35692fe0 JB |
2901 | return Qnil; |
2902 | } | |
2903 | ||
2904 | Lisp_Object | |
2905 | save_restriction_save () | |
2906 | { | |
d6abb4c7 MB |
2907 | if (BEGV == BEG && ZV == Z) |
2908 | /* The common case that the buffer isn't narrowed. | |
2909 | We return just the buffer object, which save_restriction_restore | |
2910 | recognizes as meaning `no restriction'. */ | |
2911 | return Fcurrent_buffer (); | |
2912 | else | |
2913 | /* We have to save a restriction, so return a pair of markers, one | |
2914 | for the beginning and one for the end. */ | |
2915 | { | |
2916 | Lisp_Object beg, end; | |
2917 | ||
2918 | beg = buildmark (BEGV, BEGV_BYTE); | |
2919 | end = buildmark (ZV, ZV_BYTE); | |
35692fe0 | 2920 | |
d6abb4c7 MB |
2921 | /* END must move forward if text is inserted at its exact location. */ |
2922 | XMARKER(end)->insertion_type = 1; | |
2923 | ||
2924 | return Fcons (beg, end); | |
2925 | } | |
35692fe0 JB |
2926 | } |
2927 | ||
2928 | Lisp_Object | |
2929 | save_restriction_restore (data) | |
2930 | Lisp_Object data; | |
2931 | { | |
d6abb4c7 MB |
2932 | if (CONSP (data)) |
2933 | /* A pair of marks bounding a saved restriction. */ | |
35692fe0 | 2934 | { |
d6abb4c7 MB |
2935 | struct Lisp_Marker *beg = XMARKER (XCAR (data)); |
2936 | struct Lisp_Marker *end = XMARKER (XCDR (data)); | |
2937 | struct buffer *buf = beg->buffer; /* END should have the same buffer. */ | |
2cad2e34 | 2938 | |
63884563 RS |
2939 | if (buf /* Verify marker still points to a buffer. */ |
2940 | && (beg->charpos != BUF_BEGV (buf) || end->charpos != BUF_ZV (buf))) | |
d6abb4c7 MB |
2941 | /* The restriction has changed from the saved one, so restore |
2942 | the saved restriction. */ | |
2943 | { | |
2944 | int pt = BUF_PT (buf); | |
2945 | ||
2946 | SET_BUF_BEGV_BOTH (buf, beg->charpos, beg->bytepos); | |
2947 | SET_BUF_ZV_BOTH (buf, end->charpos, end->bytepos); | |
2948 | ||
2949 | if (pt < beg->charpos || pt > end->charpos) | |
2950 | /* The point is outside the new visible range, move it inside. */ | |
2951 | SET_BUF_PT_BOTH (buf, | |
2952 | clip_to_bounds (beg->charpos, pt, end->charpos), | |
63884563 | 2953 | clip_to_bounds (beg->bytepos, BUF_PT_BYTE (buf), |
d6abb4c7 | 2954 | end->bytepos)); |
177c0ea7 | 2955 | |
d6abb4c7 MB |
2956 | buf->clip_changed = 1; /* Remember that the narrowing changed. */ |
2957 | } | |
2958 | } | |
2959 | else | |
2960 | /* A buffer, which means that there was no old restriction. */ | |
2961 | { | |
2962 | struct buffer *buf = XBUFFER (data); | |
2cad2e34 | 2963 | |
63884563 RS |
2964 | if (buf /* Verify marker still points to a buffer. */ |
2965 | && (BUF_BEGV (buf) != BUF_BEG (buf) || BUF_ZV (buf) != BUF_Z (buf))) | |
d6abb4c7 MB |
2966 | /* The buffer has been narrowed, get rid of the narrowing. */ |
2967 | { | |
63884563 RS |
2968 | SET_BUF_BEGV_BOTH (buf, BUF_BEG (buf), BUF_BEG_BYTE (buf)); |
2969 | SET_BUF_ZV_BOTH (buf, BUF_Z (buf), BUF_Z_BYTE (buf)); | |
35692fe0 | 2970 | |
d6abb4c7 MB |
2971 | buf->clip_changed = 1; /* Remember that the narrowing changed. */ |
2972 | } | |
2973 | } | |
35692fe0 JB |
2974 | |
2975 | return Qnil; | |
2976 | } | |
2977 | ||
2978 | DEFUN ("save-restriction", Fsave_restriction, Ssave_restriction, 0, UNEVALLED, 0, | |
7ee72033 | 2979 | doc: /* Execute BODY, saving and restoring current buffer's restrictions. |
a1f17501 PJ |
2980 | The buffer's restrictions make parts of the beginning and end invisible. |
2981 | (They are set up with `narrow-to-region' and eliminated with `widen'.) | |
2982 | This special form, `save-restriction', saves the current buffer's restrictions | |
2983 | when it is entered, and restores them when it is exited. | |
2984 | So any `narrow-to-region' within BODY lasts only until the end of the form. | |
2985 | The old restrictions settings are restored | |
2986 | even in case of abnormal exit (throw or error). | |
2987 | ||
2988 | The value returned is the value of the last form in BODY. | |
2989 | ||
2990 | Note: if you are using both `save-excursion' and `save-restriction', | |
2991 | use `save-excursion' outermost: | |
33c2d29f MB |
2992 | (save-excursion (save-restriction ...)) |
2993 | ||
2994 | usage: (save-restriction &rest BODY) */) | |
7ee72033 | 2995 | (body) |
35692fe0 JB |
2996 | Lisp_Object body; |
2997 | { | |
2998 | register Lisp_Object val; | |
aed13378 | 2999 | int count = SPECPDL_INDEX (); |
35692fe0 JB |
3000 | |
3001 | record_unwind_protect (save_restriction_restore, save_restriction_save ()); | |
3002 | val = Fprogn (body); | |
3003 | return unbind_to (count, val); | |
3004 | } | |
3005 | \f | |
0ae83348 | 3006 | /* Buffer for the most recent text displayed by Fmessage_box. */ |
671fbc4d KH |
3007 | static char *message_text; |
3008 | ||
3009 | /* Allocated length of that buffer. */ | |
3010 | static int message_length; | |
3011 | ||
35692fe0 | 3012 | DEFUN ("message", Fmessage, Smessage, 1, MANY, 0, |
7ee72033 | 3013 | doc: /* Print a one-line message at the bottom of the screen. |
a1f17501 PJ |
3014 | The first argument is a format control string, and the rest are data |
3015 | to be formatted under control of the string. See `format' for details. | |
3016 | ||
3017 | If the first argument is nil, clear any existing message; let the | |
4bfbe194 MB |
3018 | minibuffer contents show. |
3019 | ||
3020 | usage: (message STRING &rest ARGS) */) | |
7ee72033 | 3021 | (nargs, args) |
35692fe0 JB |
3022 | int nargs; |
3023 | Lisp_Object *args; | |
3024 | { | |
6076e561 RS |
3025 | if (NILP (args[0]) |
3026 | || (STRINGP (args[0]) | |
3027 | && SBYTES (args[0]) == 0)) | |
f0250249 JB |
3028 | { |
3029 | message (0); | |
3030 | return Qnil; | |
3031 | } | |
ccdac5be JB |
3032 | else |
3033 | { | |
3034 | register Lisp_Object val; | |
304f1f12 | 3035 | val = Fformat (nargs, args); |
d5db4077 | 3036 | message3 (val, SBYTES (val), STRING_MULTIBYTE (val)); |
ccdac5be JB |
3037 | return val; |
3038 | } | |
35692fe0 JB |
3039 | } |
3040 | ||
cacc3e2c | 3041 | DEFUN ("message-box", Fmessage_box, Smessage_box, 1, MANY, 0, |
7ee72033 | 3042 | doc: /* Display a message, in a dialog box if possible. |
a1f17501 PJ |
3043 | If a dialog box is not available, use the echo area. |
3044 | The first argument is a format control string, and the rest are data | |
3045 | to be formatted under control of the string. See `format' for details. | |
3046 | ||
3047 | If the first argument is nil, clear any existing message; let the | |
4bfbe194 MB |
3048 | minibuffer contents show. |
3049 | ||
3050 | usage: (message-box STRING &rest ARGS) */) | |
7ee72033 | 3051 | (nargs, args) |
cacc3e2c RS |
3052 | int nargs; |
3053 | Lisp_Object *args; | |
3054 | { | |
3055 | if (NILP (args[0])) | |
3056 | { | |
3057 | message (0); | |
3058 | return Qnil; | |
3059 | } | |
3060 | else | |
3061 | { | |
3062 | register Lisp_Object val; | |
3063 | val = Fformat (nargs, args); | |
f8250f01 | 3064 | #ifdef HAVE_MENUS |
0ae83348 EZ |
3065 | /* The MS-DOS frames support popup menus even though they are |
3066 | not FRAME_WINDOW_P. */ | |
3067 | if (FRAME_WINDOW_P (XFRAME (selected_frame)) | |
3068 | || FRAME_MSDOS_P (XFRAME (selected_frame))) | |
cacc3e2c RS |
3069 | { |
3070 | Lisp_Object pane, menu, obj; | |
3071 | struct gcpro gcpro1; | |
3072 | pane = Fcons (Fcons (build_string ("OK"), Qt), Qnil); | |
3073 | GCPRO1 (pane); | |
3074 | menu = Fcons (val, pane); | |
3075 | obj = Fx_popup_dialog (Qt, menu); | |
3076 | UNGCPRO; | |
3077 | return val; | |
3078 | } | |
0ae83348 | 3079 | #endif /* HAVE_MENUS */ |
cacc3e2c RS |
3080 | /* Copy the data so that it won't move when we GC. */ |
3081 | if (! message_text) | |
3082 | { | |
3083 | message_text = (char *)xmalloc (80); | |
3084 | message_length = 80; | |
3085 | } | |
d5db4077 | 3086 | if (SBYTES (val) > message_length) |
cacc3e2c | 3087 | { |
d5db4077 | 3088 | message_length = SBYTES (val); |
cacc3e2c RS |
3089 | message_text = (char *)xrealloc (message_text, message_length); |
3090 | } | |
d5db4077 KR |
3091 | bcopy (SDATA (val), message_text, SBYTES (val)); |
3092 | message2 (message_text, SBYTES (val), | |
d13a8480 | 3093 | STRING_MULTIBYTE (val)); |
cacc3e2c | 3094 | return val; |
cacc3e2c RS |
3095 | } |
3096 | } | |
f8250f01 | 3097 | #ifdef HAVE_MENUS |
cacc3e2c RS |
3098 | extern Lisp_Object last_nonmenu_event; |
3099 | #endif | |
f8250f01 | 3100 | |
cacc3e2c | 3101 | DEFUN ("message-or-box", Fmessage_or_box, Smessage_or_box, 1, MANY, 0, |
7ee72033 | 3102 | doc: /* Display a message in a dialog box or in the echo area. |
a1f17501 PJ |
3103 | If this command was invoked with the mouse, use a dialog box if |
3104 | `use-dialog-box' is non-nil. | |
3105 | Otherwise, use the echo area. | |
3106 | The first argument is a format control string, and the rest are data | |
3107 | to be formatted under control of the string. See `format' for details. | |
3108 | ||
3109 | If the first argument is nil, clear any existing message; let the | |
4bfbe194 MB |
3110 | minibuffer contents show. |
3111 | ||
3112 | usage: (message-or-box STRING &rest ARGS) */) | |
7ee72033 | 3113 | (nargs, args) |
cacc3e2c RS |
3114 | int nargs; |
3115 | Lisp_Object *args; | |
3116 | { | |
f8250f01 | 3117 | #ifdef HAVE_MENUS |
5920df33 | 3118 | if ((NILP (last_nonmenu_event) || CONSP (last_nonmenu_event)) |
c01fbf95 | 3119 | && use_dialog_box) |
0a56ee6b | 3120 | return Fmessage_box (nargs, args); |
cacc3e2c RS |
3121 | #endif |
3122 | return Fmessage (nargs, args); | |
3123 | } | |
3124 | ||
b14dda8a | 3125 | DEFUN ("current-message", Fcurrent_message, Scurrent_message, 0, 0, 0, |
7ee72033 MB |
3126 | doc: /* Return the string currently displayed in the echo area, or nil if none. */) |
3127 | () | |
b14dda8a | 3128 | { |
0634a78e | 3129 | return current_message (); |
b14dda8a RS |
3130 | } |
3131 | ||
2d9811c4 | 3132 | |
d2936d21 | 3133 | DEFUN ("propertize", Fpropertize, Spropertize, 1, MANY, 0, |
7ee72033 | 3134 | doc: /* Return a copy of STRING with text properties added. |
a1f17501 PJ |
3135 | First argument is the string to copy. |
3136 | Remaining arguments form a sequence of PROPERTY VALUE pairs for text | |
4bfbe194 MB |
3137 | properties to add to the result. |
3138 | usage: (propertize STRING &rest PROPERTIES) */) | |
7ee72033 | 3139 | (nargs, args) |
2d9811c4 GM |
3140 | int nargs; |
3141 | Lisp_Object *args; | |
3142 | { | |
3143 | Lisp_Object properties, string; | |
3144 | struct gcpro gcpro1, gcpro2; | |
3145 | int i; | |
3146 | ||
3147 | /* Number of args must be odd. */ | |
d2936d21 | 3148 | if ((nargs & 1) == 0 || nargs < 1) |
2d9811c4 GM |
3149 | error ("Wrong number of arguments"); |
3150 | ||
3151 | properties = string = Qnil; | |
3152 | GCPRO2 (properties, string); | |
34a7a267 | 3153 | |
2d9811c4 | 3154 | /* First argument must be a string. */ |
b7826503 | 3155 | CHECK_STRING (args[0]); |
2d9811c4 GM |
3156 | string = Fcopy_sequence (args[0]); |
3157 | ||
3158 | for (i = 1; i < nargs; i += 2) | |
3159 | { | |
b7826503 | 3160 | CHECK_SYMBOL (args[i]); |
2d9811c4 GM |
3161 | properties = Fcons (args[i], Fcons (args[i + 1], properties)); |
3162 | } | |
3163 | ||
3164 | Fadd_text_properties (make_number (0), | |
d5db4077 | 3165 | make_number (SCHARS (string)), |
2d9811c4 GM |
3166 | properties, string); |
3167 | RETURN_UNGCPRO (string); | |
3168 | } | |
3169 | ||
3170 | ||
1f24f4fd RS |
3171 | /* Number of bytes that STRING will occupy when put into the result. |
3172 | MULTIBYTE is nonzero if the result should be multibyte. */ | |
3173 | ||
3174 | #define CONVERTED_BYTE_SIZE(MULTIBYTE, STRING) \ | |
3175 | (((MULTIBYTE) && ! STRING_MULTIBYTE (STRING)) \ | |
d5db4077 KR |
3176 | ? count_size_as_multibyte (SDATA (STRING), SBYTES (STRING)) \ |
3177 | : SBYTES (STRING)) | |
1f24f4fd | 3178 | |
35692fe0 | 3179 | DEFUN ("format", Fformat, Sformat, 1, MANY, 0, |
7ee72033 | 3180 | doc: /* Format a string out of a control-string and arguments. |
a1f17501 PJ |
3181 | The first argument is a control string. |
3182 | The other arguments are substituted into it to make the result, a string. | |
3183 | It may contain %-sequences meaning to substitute the next argument. | |
3184 | %s means print a string argument. Actually, prints any object, with `princ'. | |
3185 | %d means print as number in decimal (%o octal, %x hex). | |
3186 | %X is like %x, but uses upper case. | |
3187 | %e means print a number in exponential notation. | |
3188 | %f means print a number in decimal-point notation. | |
3189 | %g means print a number in exponential notation | |
3190 | or decimal-point notation, whichever uses fewer characters. | |
3191 | %c means print a number as a single character. | |
3192 | %S means print any object as an s-expression (using `prin1'). | |
3193 | The argument used for %d, %o, %x, %e, %f, %g or %c must be a number. | |
4bfbe194 MB |
3194 | Use %% to put a single % into the output. |
3195 | ||
3196 | usage: (format STRING &rest OBJECTS) */) | |
7ee72033 | 3197 | (nargs, args) |
35692fe0 JB |
3198 | int nargs; |
3199 | register Lisp_Object *args; | |
3200 | { | |
3201 | register int n; /* The number of the next arg to substitute */ | |
e781c49e | 3202 | register int total; /* An estimate of the final length */ |
1f24f4fd | 3203 | char *buf, *p; |
d147ee84 | 3204 | register unsigned char *format, *end, *format_start; |
2ea0266e | 3205 | int nchars; |
1f24f4fd RS |
3206 | /* Nonzero if the output should be a multibyte string, |
3207 | which is true if any of the inputs is one. */ | |
3208 | int multibyte = 0; | |
8f2917e4 KH |
3209 | /* When we make a multibyte string, we must pay attention to the |
3210 | byte combining problem, i.e., a byte may be combined with a | |
3211 | multibyte charcter of the previous string. This flag tells if we | |
3212 | must consider such a situation or not. */ | |
3213 | int maybe_combine_byte; | |
1f24f4fd | 3214 | unsigned char *this_format; |
ac42d7b9 KG |
3215 | /* Precision for each spec, or -1, a flag value meaning no precision |
3216 | was given in that spec. Element 0, corresonding to the format | |
3217 | string itself, will not be used. Element NARGS, corresponding to | |
3218 | no argument, *will* be assigned to in the case that a `%' and `.' | |
3219 | occur after the final format specifier. */ | |
b11f1d8a | 3220 | int *precision = (int *) (alloca(nargs * sizeof (int))); |
e781c49e | 3221 | int longest_format; |
8d6179dc | 3222 | Lisp_Object val; |
d147ee84 RS |
3223 | int arg_intervals = 0; |
3224 | ||
3225 | /* discarded[I] is 1 if byte I of the format | |
3226 | string was not copied into the output. | |
3227 | It is 2 if byte I was not the first byte of its character. */ | |
3228 | char *discarded; | |
3229 | ||
3230 | /* Each element records, for one argument, | |
3231 | the start and end bytepos in the output string, | |
3232 | and whether the argument is a string with intervals. | |
3233 | info[0] is unused. Unused elements have -1 for start. */ | |
5e6d5493 GM |
3234 | struct info |
3235 | { | |
d147ee84 | 3236 | int start, end, intervals; |
5e6d5493 | 3237 | } *info = 0; |
1f24f4fd | 3238 | |
35692fe0 JB |
3239 | /* It should not be necessary to GCPRO ARGS, because |
3240 | the caller in the interpreter should take care of that. */ | |
3241 | ||
e781c49e RS |
3242 | /* Try to determine whether the result should be multibyte. |
3243 | This is not always right; sometimes the result needs to be multibyte | |
3244 | because of an object that we will pass through prin1, | |
3245 | and in that case, we won't know it here. */ | |
d147ee84 RS |
3246 | for (n = 0; n < nargs; n++) |
3247 | { | |
3248 | if (STRINGP (args[n]) && STRING_MULTIBYTE (args[n])) | |
3249 | multibyte = 1; | |
3250 | /* Piggyback on this loop to initialize precision[N]. */ | |
3251 | precision[n] = -1; | |
3252 | } | |
1f24f4fd | 3253 | |
b7826503 | 3254 | CHECK_STRING (args[0]); |
aa8b70ae KH |
3255 | /* We may have to change "%S" to "%s". */ |
3256 | args[0] = Fcopy_sequence (args[0]); | |
e781c49e | 3257 | |
67965a98 RS |
3258 | /* GC should never happen here, so abort if it does. */ |
3259 | abort_on_gc++; | |
3260 | ||
e781c49e | 3261 | /* If we start out planning a unibyte result, |
67965a98 RS |
3262 | then discover it has to be multibyte, we jump back to retry. |
3263 | That can only happen from the first large while loop below. */ | |
e781c49e RS |
3264 | retry: |
3265 | ||
d5db4077 | 3266 | format = SDATA (args[0]); |
d147ee84 | 3267 | format_start = format; |
d5db4077 | 3268 | end = format + SBYTES (args[0]); |
e781c49e | 3269 | longest_format = 0; |
1f24f4fd RS |
3270 | |
3271 | /* Make room in result for all the non-%-codes in the control string. */ | |
e781c49e | 3272 | total = 5 + CONVERTED_BYTE_SIZE (multibyte, args[0]); |
1f24f4fd | 3273 | |
d147ee84 RS |
3274 | /* Allocate the info and discarded tables. */ |
3275 | { | |
3276 | int nbytes = nargs * sizeof *info; | |
3277 | int i; | |
3278 | info = (struct info *) alloca (nbytes); | |
3279 | bzero (info, nbytes); | |
3280 | for (i = 0; i <= nargs; i++) | |
3281 | info[i].start = -1; | |
3282 | discarded = (char *) alloca (SBYTES (args[0])); | |
3283 | bzero (discarded, SBYTES (args[0])); | |
3284 | } | |
3285 | ||
1f24f4fd | 3286 | /* Add to TOTAL enough space to hold the converted arguments. */ |
35692fe0 JB |
3287 | |
3288 | n = 0; | |
3289 | while (format != end) | |
3290 | if (*format++ == '%') | |
3291 | { | |
a432bfe5 | 3292 | int thissize = 0; |
308dd672 | 3293 | int actual_width = 0; |
1f24f4fd | 3294 | unsigned char *this_format_start = format - 1; |
ac42d7b9 | 3295 | int field_width = 0; |
35692fe0 | 3296 | |
a432bfe5 | 3297 | /* General format specifications look like |
537dfb13 | 3298 | |
a432bfe5 GM |
3299 | '%' [flags] [field-width] [precision] format |
3300 | ||
3301 | where | |
3302 | ||
3303 | flags ::= [#-* 0]+ | |
3304 | field-width ::= [0-9]+ | |
3305 | precision ::= '.' [0-9]* | |
3306 | ||
3307 | If a field-width is specified, it specifies to which width | |
3308 | the output should be padded with blanks, iff the output | |
3309 | string is shorter than field-width. | |
3310 | ||
ac42d7b9 | 3311 | If precision is specified, it specifies the number of |
a432bfe5 GM |
3312 | digits to print after the '.' for floats, or the max. |
3313 | number of chars to print from a string. */ | |
3314 | ||
ac42d7b9 KG |
3315 | /* NOTE the handling of specifiers here differs in some ways |
3316 | from the libc model. There are bugs in this code that lead | |
3317 | to incorrect formatting when flags recognized by C but | |
3318 | neither parsed nor rejected here are used. Further | |
3319 | revisions will be made soon. */ | |
3320 | ||
3321 | /* incorrect list of flags to skip; will be fixed */ | |
a432bfe5 GM |
3322 | while (index ("-*# 0", *format)) |
3323 | ++format; | |
3324 | ||
3325 | if (*format >= '0' && *format <= '9') | |
3326 | { | |
3327 | for (field_width = 0; *format >= '0' && *format <= '9'; ++format) | |
3328 | field_width = 10 * field_width + *format - '0'; | |
3329 | } | |
3330 | ||
ac42d7b9 KG |
3331 | /* N is not incremented for another few lines below, so refer to |
3332 | element N+1 (which might be precision[NARGS]). */ | |
a432bfe5 GM |
3333 | if (*format == '.') |
3334 | { | |
3335 | ++format; | |
ac42d7b9 KG |
3336 | for (precision[n+1] = 0; *format >= '0' && *format <= '9'; ++format) |
3337 | precision[n+1] = 10 * precision[n+1] + *format - '0'; | |
a432bfe5 | 3338 | } |
35692fe0 | 3339 | |
1f24f4fd RS |
3340 | if (format - this_format_start + 1 > longest_format) |
3341 | longest_format = format - this_format_start + 1; | |
3342 | ||
bf6ab66c KH |
3343 | if (format == end) |
3344 | error ("Format string ends in middle of format specifier"); | |
35692fe0 JB |
3345 | if (*format == '%') |
3346 | format++; | |
3347 | else if (++n >= nargs) | |
537dfb13 | 3348 | error ("Not enough arguments for format string"); |
35692fe0 JB |
3349 | else if (*format == 'S') |
3350 | { | |
3351 | /* For `S', prin1 the argument and then treat like a string. */ | |
3352 | register Lisp_Object tem; | |
3353 | tem = Fprin1_to_string (args[n], Qnil); | |
e781c49e RS |
3354 | if (STRING_MULTIBYTE (tem) && ! multibyte) |
3355 | { | |
3356 | multibyte = 1; | |
3357 | goto retry; | |
3358 | } | |
35692fe0 | 3359 | args[n] = tem; |
aa8b70ae KH |
3360 | /* If we restart the loop, we should not come here again |
3361 | because args[n] is now a string and calling | |
3362 | Fprin1_to_string on it produces superflous double | |
3363 | quotes. So, change "%S" to "%s" now. */ | |
3364 | *format = 's'; | |
35692fe0 JB |
3365 | goto string; |
3366 | } | |
ae683129 | 3367 | else if (SYMBOLP (args[n])) |
35692fe0 | 3368 | { |
1e5d9116 | 3369 | args[n] = SYMBOL_NAME (args[n]); |
7df74da6 RS |
3370 | if (STRING_MULTIBYTE (args[n]) && ! multibyte) |
3371 | { | |
3372 | multibyte = 1; | |
3373 | goto retry; | |
3374 | } | |
35692fe0 JB |
3375 | goto string; |
3376 | } | |
ae683129 | 3377 | else if (STRINGP (args[n])) |
35692fe0 JB |
3378 | { |
3379 | string: | |
b22e7ecc | 3380 | if (*format != 's' && *format != 'S') |
bf6ab66c | 3381 | error ("Format specifier doesn't match argument type"); |
ac42d7b9 KG |
3382 | /* In the case (PRECISION[N] > 0), THISSIZE may not need |
3383 | to be as large as is calculated here. Easy check for | |
3384 | the case PRECISION = 0. */ | |
3385 | thissize = precision[n] ? CONVERTED_BYTE_SIZE (multibyte, args[n]) : 0; | |
308dd672 | 3386 | actual_width = lisp_string_width (args[n], -1, NULL, NULL); |
35692fe0 JB |
3387 | } |
3388 | /* Would get MPV otherwise, since Lisp_Int's `point' to low memory. */ | |
ae683129 | 3389 | else if (INTEGERP (args[n]) && *format != 's') |
35692fe0 | 3390 | { |
eb8c3be9 | 3391 | /* The following loop assumes the Lisp type indicates |
35692fe0 JB |
3392 | the proper way to pass the argument. |
3393 | So make sure we have a flonum if the argument should | |
3394 | be a double. */ | |
3395 | if (*format == 'e' || *format == 'f' || *format == 'g') | |
3396 | args[n] = Ffloat (args[n]); | |
4224cb62 | 3397 | else |
4224cb62 | 3398 | if (*format != 'd' && *format != 'o' && *format != 'x' |
00d65216 | 3399 | && *format != 'i' && *format != 'X' && *format != 'c') |
4224cb62 KH |
3400 | error ("Invalid format operation %%%c", *format); |
3401 | ||
34a7a267 | 3402 | thissize = 30; |
063b53b1 | 3403 | if (*format == 'c') |
f49a2d74 | 3404 | { |
063b53b1 | 3405 | if (! SINGLE_BYTE_CHAR_P (XINT (args[n])) |
231a3316 KH |
3406 | /* Note: No one can remeber why we have to treat |
3407 | the character 0 as a multibyte character here. | |
3408 | But, until it causes a real problem, let's | |
3409 | don't change it. */ | |
063b53b1 | 3410 | || XINT (args[n]) == 0) |
f49a2d74 | 3411 | { |
063b53b1 KH |
3412 | if (! multibyte) |
3413 | { | |
3414 | multibyte = 1; | |
3415 | goto retry; | |
3416 | } | |
3417 | args[n] = Fchar_to_string (args[n]); | |
3418 | thissize = SBYTES (args[n]); | |
3419 | } | |
3420 | else if (! ASCII_BYTE_P (XINT (args[n])) && multibyte) | |
3421 | { | |
3422 | args[n] | |
3423 | = Fchar_to_string (Funibyte_char_to_multibyte (args[n])); | |
3424 | thissize = SBYTES (args[n]); | |
f49a2d74 | 3425 | } |
f49a2d74 | 3426 | } |
35692fe0 | 3427 | } |
ae683129 | 3428 | else if (FLOATP (args[n]) && *format != 's') |
35692fe0 JB |
3429 | { |
3430 | if (! (*format == 'e' || *format == 'f' || *format == 'g')) | |
f98176d2 RS |
3431 | { |
3432 | if (*format != 'd' && *format != 'o' && *format != 'x' | |
3433 | && *format != 'i' && *format != 'X' && *format != 'c') | |
3434 | error ("Invalid format operation %%%c", *format); | |
3435 | args[n] = Ftruncate (args[n], Qnil); | |
3436 | } | |
a432bfe5 GM |
3437 | |
3438 | /* Note that we're using sprintf to print floats, | |
3439 | so we have to take into account what that function | |
3440 | prints. */ | |
b11f1d8a | 3441 | /* Filter out flag value of -1. */ |
6b381c3a RS |
3442 | thissize = (MAX_10_EXP + 100 |
3443 | + (precision[n] > 0 ? precision[n] : 0)); | |
35692fe0 JB |
3444 | } |
3445 | else | |
3446 | { | |
3447 | /* Anything but a string, convert to a string using princ. */ | |
3448 | register Lisp_Object tem; | |
3449 | tem = Fprin1_to_string (args[n], Qt); | |
3a9f36e6 | 3450 | if (STRING_MULTIBYTE (tem) && ! multibyte) |
e781c49e RS |
3451 | { |
3452 | multibyte = 1; | |
3453 | goto retry; | |
3454 | } | |
35692fe0 JB |
3455 | args[n] = tem; |
3456 | goto string; | |
3457 | } | |
34a7a267 | 3458 | |
308dd672 | 3459 | thissize += max (0, field_width - actual_width); |
1f24f4fd | 3460 | total += thissize + 4; |
35692fe0 JB |
3461 | } |
3462 | ||
67965a98 RS |
3463 | abort_on_gc--; |
3464 | ||
e781c49e RS |
3465 | /* Now we can no longer jump to retry. |
3466 | TOTAL and LONGEST_FORMAT are known for certain. */ | |
3467 | ||
1f24f4fd | 3468 | this_format = (unsigned char *) alloca (longest_format + 1); |
50aa2f90 | 3469 | |
1f24f4fd RS |
3470 | /* Allocate the space for the result. |
3471 | Note that TOTAL is an overestimate. */ | |
3472 | if (total < 1000) | |
3c6db9d5 | 3473 | buf = (char *) alloca (total + 1); |
1f24f4fd | 3474 | else |
3c6db9d5 | 3475 | buf = (char *) xmalloc (total + 1); |
35692fe0 | 3476 | |
1f24f4fd RS |
3477 | p = buf; |
3478 | nchars = 0; | |
3479 | n = 0; | |
35692fe0 | 3480 | |
1f24f4fd | 3481 | /* Scan the format and store result in BUF. */ |
d5db4077 | 3482 | format = SDATA (args[0]); |
67965a98 RS |
3483 | format_start = format; |
3484 | end = format + SBYTES (args[0]); | |
8f2917e4 | 3485 | maybe_combine_byte = 0; |
1f24f4fd RS |
3486 | while (format != end) |
3487 | { | |
3488 | if (*format == '%') | |
3489 | { | |
3490 | int minlen; | |
25c9e7fb | 3491 | int negative = 0; |
1f24f4fd | 3492 | unsigned char *this_format_start = format; |
35692fe0 | 3493 | |
d147ee84 | 3494 | discarded[format - format_start] = 1; |
1f24f4fd | 3495 | format++; |
fb893977 | 3496 | |
1f24f4fd | 3497 | /* Process a numeric arg and skip it. */ |
ac42d7b9 | 3498 | /* NOTE atoi is the wrong thing to use here; will be fixed */ |
1f24f4fd RS |
3499 | minlen = atoi (format); |
3500 | if (minlen < 0) | |
25c9e7fb | 3501 | minlen = - minlen, negative = 1; |
35692fe0 | 3502 | |
ac42d7b9 KG |
3503 | /* NOTE the parsing here is not consistent with the first |
3504 | pass, and neither attempt is what we want to do. Will be | |
3505 | fixed. */ | |
1f24f4fd RS |
3506 | while ((*format >= '0' && *format <= '9') |
3507 | || *format == '-' || *format == ' ' || *format == '.') | |
d147ee84 RS |
3508 | { |
3509 | discarded[format - format_start] = 1; | |
3510 | format++; | |
3511 | } | |
35692fe0 | 3512 | |
1f24f4fd RS |
3513 | if (*format++ == '%') |
3514 | { | |
3515 | *p++ = '%'; | |
3516 | nchars++; | |
3517 | continue; | |
3518 | } | |
3519 | ||
3520 | ++n; | |
3521 | ||
d147ee84 RS |
3522 | discarded[format - format_start - 1] = 1; |
3523 | info[n].start = nchars; | |
3524 | ||
1f24f4fd RS |
3525 | if (STRINGP (args[n])) |
3526 | { | |
ac42d7b9 KG |
3527 | /* handle case (precision[n] >= 0) */ |
3528 | ||
3529 | int width, padding; | |
3530 | int nbytes, start, end; | |
3531 | int nchars_string; | |
3532 | ||
3533 | /* lisp_string_width ignores a precision of 0, but GNU | |
3534 | libc functions print 0 characters when the precision | |
3535 | is 0. Imitate libc behavior here. Changing | |
3536 | lisp_string_width is the right thing, and will be | |
3537 | done, but meanwhile we work with it. */ | |
3538 | ||
3539 | if (precision[n] == 0) | |
3540 | width = nchars_string = nbytes = 0; | |
3541 | else if (precision[n] > 0) | |
3542 | width = lisp_string_width (args[n], precision[n], &nchars_string, &nbytes); | |
3543 | else | |
3544 | { /* no precision spec given for this argument */ | |
3545 | width = lisp_string_width (args[n], -1, NULL, NULL); | |
3546 | nbytes = SBYTES (args[n]); | |
3547 | nchars_string = SCHARS (args[n]); | |
3548 | } | |
25c9e7fb RS |
3549 | |
3550 | /* If spec requires it, pad on right with spaces. */ | |
3551 | padding = minlen - width; | |
3552 | if (! negative) | |
3553 | while (padding-- > 0) | |
3554 | { | |
3555 | *p++ = ' '; | |
50606b4c | 3556 | ++nchars; |
25c9e7fb | 3557 | } |
1f24f4fd | 3558 | |
50606b4c | 3559 | start = nchars; |
ac42d7b9 KG |
3560 | nchars += nchars_string; |
3561 | end = nchars; | |
3562 | ||
8f2917e4 KH |
3563 | if (p > buf |
3564 | && multibyte | |
25aa5d64 | 3565 | && !ASCII_BYTE_P (*((unsigned char *) p - 1)) |
8f2917e4 | 3566 | && STRING_MULTIBYTE (args[n]) |
d5db4077 | 3567 | && !CHAR_HEAD_P (SREF (args[n], 0))) |
8f2917e4 | 3568 | maybe_combine_byte = 1; |
ac42d7b9 KG |
3569 | |
3570 | p += copy_text (SDATA (args[n]), p, | |
3571 | nbytes, | |
3572 | STRING_MULTIBYTE (args[n]), multibyte); | |
1f24f4fd | 3573 | |
25c9e7fb RS |
3574 | if (negative) |
3575 | while (padding-- > 0) | |
3576 | { | |
3577 | *p++ = ' '; | |
3578 | nchars++; | |
3579 | } | |
5e6d5493 GM |
3580 | |
3581 | /* If this argument has text properties, record where | |
3582 | in the result string it appears. */ | |
d5db4077 | 3583 | if (STRING_INTERVALS (args[n])) |
d147ee84 | 3584 | info[n].intervals = arg_intervals = 1; |
1f24f4fd RS |
3585 | } |
3586 | else if (INTEGERP (args[n]) || FLOATP (args[n])) | |
3587 | { | |
3588 | int this_nchars; | |
3589 | ||
3590 | bcopy (this_format_start, this_format, | |
3591 | format - this_format_start); | |
3592 | this_format[format - this_format_start] = 0; | |
3593 | ||
d0183d38 RS |
3594 | if (INTEGERP (args[n])) |
3595 | sprintf (p, this_format, XINT (args[n])); | |
3596 | else | |
03699b14 | 3597 | sprintf (p, this_format, XFLOAT_DATA (args[n])); |
1f24f4fd | 3598 | |
8f2917e4 KH |
3599 | if (p > buf |
3600 | && multibyte | |
25aa5d64 KH |
3601 | && !ASCII_BYTE_P (*((unsigned char *) p - 1)) |
3602 | && !CHAR_HEAD_P (*((unsigned char *) p))) | |
8f2917e4 | 3603 | maybe_combine_byte = 1; |
1f24f4fd | 3604 | this_nchars = strlen (p); |
9a599130 KH |
3605 | if (multibyte) |
3606 | p += str_to_multibyte (p, buf + total - p, this_nchars); | |
3607 | else | |
3608 | p += this_nchars; | |
1f24f4fd RS |
3609 | nchars += this_nchars; |
3610 | } | |
d147ee84 RS |
3611 | |
3612 | info[n].end = nchars; | |
1f24f4fd | 3613 | } |
7df74da6 RS |
3614 | else if (STRING_MULTIBYTE (args[0])) |
3615 | { | |
3616 | /* Copy a whole multibyte character. */ | |
8f2917e4 KH |
3617 | if (p > buf |
3618 | && multibyte | |
25aa5d64 KH |
3619 | && !ASCII_BYTE_P (*((unsigned char *) p - 1)) |
3620 | && !CHAR_HEAD_P (*format)) | |
8f2917e4 | 3621 | maybe_combine_byte = 1; |
7df74da6 | 3622 | *p++ = *format++; |
d147ee84 RS |
3623 | while (! CHAR_HEAD_P (*format)) |
3624 | { | |
3625 | discarded[format - format_start] = 2; | |
3626 | *p++ = *format++; | |
3627 | } | |
7df74da6 RS |
3628 | nchars++; |
3629 | } | |
3630 | else if (multibyte) | |
1f24f4fd RS |
3631 | { |
3632 | /* Convert a single-byte character to multibyte. */ | |
3633 | int len = copy_text (format, p, 1, 0, 1); | |
3634 | ||
3635 | p += len; | |
3636 | format++; | |
3637 | nchars++; | |
3638 | } | |
3639 | else | |
3640 | *p++ = *format++, nchars++; | |
3641 | } | |
3642 | ||
a432bfe5 GM |
3643 | if (p > buf + total + 1) |
3644 | abort (); | |
3645 | ||
8f2917e4 KH |
3646 | if (maybe_combine_byte) |
3647 | nchars = multibyte_chars_in_text (buf, p - buf); | |
5f75e666 | 3648 | val = make_specified_string (buf, nchars, p - buf, multibyte); |
8d6179dc | 3649 | |
1f24f4fd RS |
3650 | /* If we allocated BUF with malloc, free it too. */ |
3651 | if (total >= 1000) | |
3652 | xfree (buf); | |
35692fe0 | 3653 | |
5e6d5493 GM |
3654 | /* If the format string has text properties, or any of the string |
3655 | arguments has text properties, set up text properties of the | |
3656 | result string. */ | |
34a7a267 | 3657 | |
d147ee84 | 3658 | if (STRING_INTERVALS (args[0]) || arg_intervals) |
5e6d5493 GM |
3659 | { |
3660 | Lisp_Object len, new_len, props; | |
3661 | struct gcpro gcpro1; | |
34a7a267 | 3662 | |
5e6d5493 | 3663 | /* Add text properties from the format string. */ |
d5db4077 | 3664 | len = make_number (SCHARS (args[0])); |
5e6d5493 GM |
3665 | props = text_property_list (args[0], make_number (0), len, Qnil); |
3666 | GCPRO1 (props); | |
34a7a267 | 3667 | |
5e6d5493 GM |
3668 | if (CONSP (props)) |
3669 | { | |
d147ee84 RS |
3670 | int bytepos = 0, position = 0, translated = 0, argn = 1; |
3671 | Lisp_Object list; | |
3672 | ||
3673 | /* Adjust the bounds of each text property | |
3674 | to the proper start and end in the output string. */ | |
3675 | /* We take advantage of the fact that the positions in PROPS | |
3676 | are in increasing order, so that we can do (effectively) | |
3677 | one scan through the position space of the format string. | |
3678 | ||
3679 | BYTEPOS is the byte position in the format string, | |
3680 | POSITION is the untranslated char position in it, | |
3681 | TRANSLATED is the translated char position in BUF, | |
3682 | and ARGN is the number of the next arg we will come to. */ | |
3683 | for (list = props; CONSP (list); list = XCDR (list)) | |
3684 | { | |
f3ce1df8 SM |
3685 | Lisp_Object item; |
3686 | int pos; | |
d147ee84 RS |
3687 | |
3688 | item = XCAR (list); | |
3689 | ||
3690 | /* First adjust the property start position. */ | |
3691 | pos = XINT (XCAR (item)); | |
3692 | ||
3693 | /* Advance BYTEPOS, POSITION, TRANSLATED and ARGN | |
3694 | up to this position. */ | |
3695 | for (; position < pos; bytepos++) | |
3696 | { | |
3697 | if (! discarded[bytepos]) | |
3698 | position++, translated++; | |
3699 | else if (discarded[bytepos] == 1) | |
3700 | { | |
3701 | position++; | |
3702 | if (translated == info[argn].start) | |
3703 | { | |
3704 | translated += info[argn].end - info[argn].start; | |
3705 | argn++; | |
3706 | } | |
3707 | } | |
3708 | } | |
3709 | ||
3710 | XSETCAR (item, make_number (translated)); | |
3711 | ||
3712 | /* Likewise adjust the property end position. */ | |
3713 | pos = XINT (XCAR (XCDR (item))); | |
3714 | ||
3715 | for (; bytepos < pos; bytepos++) | |
3716 | { | |
3717 | if (! discarded[bytepos]) | |
3718 | position++, translated++; | |
3719 | else if (discarded[bytepos] == 1) | |
3720 | { | |
3721 | position++; | |
3722 | if (translated == info[argn].start) | |
3723 | { | |
3724 | translated += info[argn].end - info[argn].start; | |
3725 | argn++; | |
3726 | } | |
3727 | } | |
3728 | } | |
3729 | ||
3730 | XSETCAR (XCDR (item), make_number (translated)); | |
3731 | } | |
3732 | ||
5e6d5493 GM |
3733 | add_text_properties_from_list (val, props, make_number (0)); |
3734 | } | |
3735 | ||
3736 | /* Add text properties from arguments. */ | |
d147ee84 | 3737 | if (arg_intervals) |
5e6d5493 | 3738 | for (n = 1; n < nargs; ++n) |
d147ee84 | 3739 | if (info[n].intervals) |
5e6d5493 | 3740 | { |
d5db4077 | 3741 | len = make_number (SCHARS (args[n])); |
5e6d5493 GM |
3742 | new_len = make_number (info[n].end - info[n].start); |
3743 | props = text_property_list (args[n], make_number (0), len, Qnil); | |
3744 | extend_property_ranges (props, len, new_len); | |
be17069b KH |
3745 | /* If successive arguments have properites, be sure that |
3746 | the value of `composition' property be the copy. */ | |
3747 | if (n > 1 && info[n - 1].end) | |
3748 | make_composition_value_copy (props); | |
5e6d5493 GM |
3749 | add_text_properties_from_list (val, props, |
3750 | make_number (info[n].start)); | |
3751 | } | |
3752 | ||
3753 | UNGCPRO; | |
3754 | } | |
3755 | ||
8d6179dc | 3756 | return val; |
35692fe0 JB |
3757 | } |
3758 | ||
35692fe0 | 3759 | Lisp_Object |
d40dc1d0 | 3760 | format2 (string1, arg0, arg1) |
35692fe0 | 3761 | char *string1; |
d40dc1d0 RS |
3762 | Lisp_Object arg0, arg1; |
3763 | { | |
3764 | Lisp_Object args[3]; | |
d40dc1d0 RS |
3765 | args[0] = build_string (string1); |
3766 | args[1] = arg0; | |
3767 | args[2] = arg1; | |
3768 | return Fformat (3, args); | |
35692fe0 JB |
3769 | } |
3770 | \f | |
3771 | DEFUN ("char-equal", Fchar_equal, Schar_equal, 2, 2, 0, | |
7ee72033 | 3772 | doc: /* Return t if two characters match, optionally ignoring case. |
a1f17501 | 3773 | Both arguments must be characters (i.e. integers). |
7ee72033 MB |
3774 | Case is ignored if `case-fold-search' is non-nil in the current buffer. */) |
3775 | (c1, c2) | |
35692fe0 JB |
3776 | register Lisp_Object c1, c2; |
3777 | { | |
1b5d98bb | 3778 | int i1, i2; |
b7826503 PJ |
3779 | CHECK_NUMBER (c1); |
3780 | CHECK_NUMBER (c2); | |
35692fe0 | 3781 | |
1b5d98bb | 3782 | if (XINT (c1) == XINT (c2)) |
35692fe0 | 3783 | return Qt; |
1b5d98bb RS |
3784 | if (NILP (current_buffer->case_fold_search)) |
3785 | return Qnil; | |
3786 | ||
3787 | /* Do these in separate statements, | |
3788 | then compare the variables. | |
3789 | because of the way DOWNCASE uses temp variables. */ | |
3790 | i1 = DOWNCASE (XFASTINT (c1)); | |
3791 | i2 = DOWNCASE (XFASTINT (c2)); | |
3792 | return (i1 == i2 ? Qt : Qnil); | |
35692fe0 | 3793 | } |
b229b8d1 RS |
3794 | \f |
3795 | /* Transpose the markers in two regions of the current buffer, and | |
3796 | adjust the ones between them if necessary (i.e.: if the regions | |
3797 | differ in size). | |
3798 | ||
ec1c14f6 RS |
3799 | START1, END1 are the character positions of the first region. |
3800 | START1_BYTE, END1_BYTE are the byte positions. | |
3801 | START2, END2 are the character positions of the second region. | |
3802 | START2_BYTE, END2_BYTE are the byte positions. | |
3803 | ||
b229b8d1 RS |
3804 | Traverses the entire marker list of the buffer to do so, adding an |
3805 | appropriate amount to some, subtracting from some, and leaving the | |
3806 | rest untouched. Most of this is copied from adjust_markers in insdel.c. | |
34a7a267 | 3807 | |
ec1c14f6 | 3808 | It's the caller's job to ensure that START1 <= END1 <= START2 <= END2. */ |
b229b8d1 | 3809 | |
acb7cc89 | 3810 | static void |
ec1c14f6 RS |
3811 | transpose_markers (start1, end1, start2, end2, |
3812 | start1_byte, end1_byte, start2_byte, end2_byte) | |
b229b8d1 | 3813 | register int start1, end1, start2, end2; |
ec1c14f6 | 3814 | register int start1_byte, end1_byte, start2_byte, end2_byte; |
b229b8d1 | 3815 | { |
ec1c14f6 | 3816 | register int amt1, amt1_byte, amt2, amt2_byte, diff, diff_byte, mpos; |
12038f9f | 3817 | register struct Lisp_Marker *marker; |
b229b8d1 | 3818 | |
03240d11 | 3819 | /* Update point as if it were a marker. */ |
8de1d5f0 KH |
3820 | if (PT < start1) |
3821 | ; | |
3822 | else if (PT < end1) | |
ec1c14f6 RS |
3823 | TEMP_SET_PT_BOTH (PT + (end2 - end1), |
3824 | PT_BYTE + (end2_byte - end1_byte)); | |
8de1d5f0 | 3825 | else if (PT < start2) |
ec1c14f6 RS |
3826 | TEMP_SET_PT_BOTH (PT + (end2 - start2) - (end1 - start1), |
3827 | (PT_BYTE + (end2_byte - start2_byte) | |
3828 | - (end1_byte - start1_byte))); | |
8de1d5f0 | 3829 | else if (PT < end2) |
ec1c14f6 RS |
3830 | TEMP_SET_PT_BOTH (PT - (start2 - start1), |
3831 | PT_BYTE - (start2_byte - start1_byte)); | |
8de1d5f0 | 3832 | |
03240d11 KH |
3833 | /* We used to adjust the endpoints here to account for the gap, but that |
3834 | isn't good enough. Even if we assume the caller has tried to move the | |
3835 | gap out of our way, it might still be at start1 exactly, for example; | |
3836 | and that places it `inside' the interval, for our purposes. The amount | |
3837 | of adjustment is nontrivial if there's a `denormalized' marker whose | |
3838 | position is between GPT and GPT + GAP_SIZE, so it's simpler to leave | |
3839 | the dirty work to Fmarker_position, below. */ | |
b229b8d1 RS |
3840 | |
3841 | /* The difference between the region's lengths */ | |
3842 | diff = (end2 - start2) - (end1 - start1); | |
ec1c14f6 | 3843 | diff_byte = (end2_byte - start2_byte) - (end1_byte - start1_byte); |
34a7a267 | 3844 | |
b229b8d1 | 3845 | /* For shifting each marker in a region by the length of the other |
ec1c14f6 | 3846 | region plus the distance between the regions. */ |
b229b8d1 RS |
3847 | amt1 = (end2 - start2) + (start2 - end1); |
3848 | amt2 = (end1 - start1) + (start2 - end1); | |
ec1c14f6 RS |
3849 | amt1_byte = (end2_byte - start2_byte) + (start2_byte - end1_byte); |
3850 | amt2_byte = (end1_byte - start1_byte) + (start2_byte - end1_byte); | |
b229b8d1 | 3851 | |
12038f9f | 3852 | for (marker = BUF_MARKERS (current_buffer); marker; marker = marker->next) |
b229b8d1 | 3853 | { |
12038f9f | 3854 | mpos = marker->bytepos; |
ec1c14f6 RS |
3855 | if (mpos >= start1_byte && mpos < end2_byte) |
3856 | { | |
3857 | if (mpos < end1_byte) | |
3858 | mpos += amt1_byte; | |
3859 | else if (mpos < start2_byte) | |
3860 | mpos += diff_byte; | |
3861 | else | |
3862 | mpos -= amt2_byte; | |
12038f9f | 3863 | marker->bytepos = mpos; |
ec1c14f6 | 3864 | } |
12038f9f | 3865 | mpos = marker->charpos; |
03240d11 KH |
3866 | if (mpos >= start1 && mpos < end2) |
3867 | { | |
3868 | if (mpos < end1) | |
3869 | mpos += amt1; | |
3870 | else if (mpos < start2) | |
3871 | mpos += diff; | |
3872 | else | |
3873 | mpos -= amt2; | |
03240d11 | 3874 | } |
12038f9f | 3875 | marker->charpos = mpos; |
b229b8d1 RS |
3876 | } |
3877 | } | |
3878 | ||
3879 | DEFUN ("transpose-regions", Ftranspose_regions, Stranspose_regions, 4, 5, 0, | |
7ee72033 | 3880 | doc: /* Transpose region START1 to END1 with START2 to END2. |
a1f17501 PJ |
3881 | The regions may not be overlapping, because the size of the buffer is |
3882 | never changed in a transposition. | |
3883 | ||
3884 | Optional fifth arg LEAVE_MARKERS, if non-nil, means don't update | |
3885 | any markers that happen to be located in the regions. | |
3886 | ||
7ee72033 MB |
3887 | Transposing beyond buffer boundaries is an error. */) |
3888 | (startr1, endr1, startr2, endr2, leave_markers) | |
b229b8d1 RS |
3889 | Lisp_Object startr1, endr1, startr2, endr2, leave_markers; |
3890 | { | |
ec1c14f6 RS |
3891 | register int start1, end1, start2, end2; |
3892 | int start1_byte, start2_byte, len1_byte, len2_byte; | |
3893 | int gap, len1, len_mid, len2; | |
3c6bc7d0 | 3894 | unsigned char *start1_addr, *start2_addr, *temp; |
b229b8d1 | 3895 | |
b229b8d1 | 3896 | INTERVAL cur_intv, tmp_interval1, tmp_interval_mid, tmp_interval2; |
1e158d25 | 3897 | cur_intv = BUF_INTERVALS (current_buffer); |
b229b8d1 RS |
3898 | |
3899 | validate_region (&startr1, &endr1); | |
3900 | validate_region (&startr2, &endr2); | |
3901 | ||
3902 | start1 = XFASTINT (startr1); | |
3903 | end1 = XFASTINT (endr1); | |
3904 | start2 = XFASTINT (startr2); | |
3905 | end2 = XFASTINT (endr2); | |
3906 | gap = GPT; | |
3907 | ||
3908 | /* Swap the regions if they're reversed. */ | |
3909 | if (start2 < end1) | |
3910 | { | |
3911 | register int glumph = start1; | |
3912 | start1 = start2; | |
3913 | start2 = glumph; | |
3914 | glumph = end1; | |
3915 | end1 = end2; | |
3916 | end2 = glumph; | |
3917 | } | |
3918 | ||
b229b8d1 RS |
3919 | len1 = end1 - start1; |
3920 | len2 = end2 - start2; | |
3921 | ||
3922 | if (start2 < end1) | |
dc3620af | 3923 | error ("Transposed regions overlap"); |
b229b8d1 | 3924 | else if (start1 == end1 || start2 == end2) |
dc3620af | 3925 | error ("Transposed region has length 0"); |
b229b8d1 RS |
3926 | |
3927 | /* The possibilities are: | |
3928 | 1. Adjacent (contiguous) regions, or separate but equal regions | |
3929 | (no, really equal, in this case!), or | |
3930 | 2. Separate regions of unequal size. | |
34a7a267 | 3931 | |
b229b8d1 RS |
3932 | The worst case is usually No. 2. It means that (aside from |
3933 | potential need for getting the gap out of the way), there also | |
3934 | needs to be a shifting of the text between the two regions. So | |
3935 | if they are spread far apart, we are that much slower... sigh. */ | |
3936 | ||
3937 | /* It must be pointed out that the really studly thing to do would | |
3938 | be not to move the gap at all, but to leave it in place and work | |
3939 | around it if necessary. This would be extremely efficient, | |
3940 | especially considering that people are likely to do | |
3941 | transpositions near where they are working interactively, which | |
3942 | is exactly where the gap would be found. However, such code | |
3943 | would be much harder to write and to read. So, if you are | |
3944 | reading this comment and are feeling squirrely, by all means have | |
3945 | a go! I just didn't feel like doing it, so I will simply move | |
3946 | the gap the minimum distance to get it out of the way, and then | |
3947 | deal with an unbroken array. */ | |
3c6bc7d0 RS |
3948 | |
3949 | /* Make sure the gap won't interfere, by moving it out of the text | |
3950 | we will operate on. */ | |
3951 | if (start1 < gap && gap < end2) | |
3952 | { | |
3953 | if (gap - start1 < end2 - gap) | |
3954 | move_gap (start1); | |
3955 | else | |
3956 | move_gap (end2); | |
3957 | } | |
ec1c14f6 RS |
3958 | |
3959 | start1_byte = CHAR_TO_BYTE (start1); | |
3960 | start2_byte = CHAR_TO_BYTE (start2); | |
3961 | len1_byte = CHAR_TO_BYTE (end1) - start1_byte; | |
3962 | len2_byte = CHAR_TO_BYTE (end2) - start2_byte; | |
dc3620af | 3963 | |
9a599130 | 3964 | #ifdef BYTE_COMBINING_DEBUG |
dc3620af RS |
3965 | if (end1 == start2) |
3966 | { | |
9a599130 KH |
3967 | if (count_combining_before (BYTE_POS_ADDR (start2_byte), |
3968 | len2_byte, start1, start1_byte) | |
3969 | || count_combining_before (BYTE_POS_ADDR (start1_byte), | |
3970 | len1_byte, end2, start2_byte + len2_byte) | |
3971 | || count_combining_after (BYTE_POS_ADDR (start1_byte), | |
3972 | len1_byte, end2, start2_byte + len2_byte)) | |
3973 | abort (); | |
dc3620af RS |
3974 | } |
3975 | else | |
3976 | { | |
9a599130 KH |
3977 | if (count_combining_before (BYTE_POS_ADDR (start2_byte), |
3978 | len2_byte, start1, start1_byte) | |
3979 | || count_combining_before (BYTE_POS_ADDR (start1_byte), | |
3980 | len1_byte, start2, start2_byte) | |
3981 | || count_combining_after (BYTE_POS_ADDR (start2_byte), | |
3982 | len2_byte, end1, start1_byte + len1_byte) | |
3983 | || count_combining_after (BYTE_POS_ADDR (start1_byte), | |
3984 | len1_byte, end2, start2_byte + len2_byte)) | |
3985 | abort (); | |
dc3620af | 3986 | } |
9a599130 | 3987 | #endif |
dc3620af | 3988 | |
b229b8d1 RS |
3989 | /* Hmmm... how about checking to see if the gap is large |
3990 | enough to use as the temporary storage? That would avoid an | |
3991 | allocation... interesting. Later, don't fool with it now. */ | |
3992 | ||
3993 | /* Working without memmove, for portability (sigh), so must be | |
3994 | careful of overlapping subsections of the array... */ | |
3995 | ||
3996 | if (end1 == start2) /* adjacent regions */ | |
3997 | { | |
b229b8d1 RS |
3998 | modify_region (current_buffer, start1, end2); |
3999 | record_change (start1, len1 + len2); | |
4000 | ||
b229b8d1 RS |
4001 | tmp_interval1 = copy_intervals (cur_intv, start1, len1); |
4002 | tmp_interval2 = copy_intervals (cur_intv, start2, len2); | |
09dbcf71 RS |
4003 | Fset_text_properties (make_number (start1), make_number (end2), |
4004 | Qnil, Qnil); | |
b229b8d1 RS |
4005 | |
4006 | /* First region smaller than second. */ | |
ec1c14f6 | 4007 | if (len1_byte < len2_byte) |
b229b8d1 | 4008 | { |
3c6bc7d0 RS |
4009 | /* We use alloca only if it is small, |
4010 | because we want to avoid stack overflow. */ | |
ec1c14f6 RS |
4011 | if (len2_byte > 20000) |
4012 | temp = (unsigned char *) xmalloc (len2_byte); | |
3c6bc7d0 | 4013 | else |
ec1c14f6 | 4014 | temp = (unsigned char *) alloca (len2_byte); |
03240d11 KH |
4015 | |
4016 | /* Don't precompute these addresses. We have to compute them | |
4017 | at the last minute, because the relocating allocator might | |
4018 | have moved the buffer around during the xmalloc. */ | |
23017390 KH |
4019 | start1_addr = BYTE_POS_ADDR (start1_byte); |
4020 | start2_addr = BYTE_POS_ADDR (start2_byte); | |
03240d11 | 4021 | |
ec1c14f6 RS |
4022 | bcopy (start2_addr, temp, len2_byte); |
4023 | bcopy (start1_addr, start1_addr + len2_byte, len1_byte); | |
4024 | bcopy (temp, start1_addr, len2_byte); | |
4025 | if (len2_byte > 20000) | |
afd74e25 | 4026 | xfree (temp); |
b229b8d1 RS |
4027 | } |
4028 | else | |
4029 | /* First region not smaller than second. */ | |
4030 | { | |
ec1c14f6 RS |
4031 | if (len1_byte > 20000) |
4032 | temp = (unsigned char *) xmalloc (len1_byte); | |
3c6bc7d0 | 4033 | else |
ec1c14f6 | 4034 | temp = (unsigned char *) alloca (len1_byte); |
23017390 KH |
4035 | start1_addr = BYTE_POS_ADDR (start1_byte); |
4036 | start2_addr = BYTE_POS_ADDR (start2_byte); | |
ec1c14f6 RS |
4037 | bcopy (start1_addr, temp, len1_byte); |
4038 | bcopy (start2_addr, start1_addr, len2_byte); | |
4039 | bcopy (temp, start1_addr + len2_byte, len1_byte); | |
4040 | if (len1_byte > 20000) | |
afd74e25 | 4041 | xfree (temp); |
b229b8d1 | 4042 | } |
b229b8d1 RS |
4043 | graft_intervals_into_buffer (tmp_interval1, start1 + len2, |
4044 | len1, current_buffer, 0); | |
4045 | graft_intervals_into_buffer (tmp_interval2, start1, | |
4046 | len2, current_buffer, 0); | |
d5c2c403 KH |
4047 | update_compositions (start1, start1 + len2, CHECK_BORDER); |
4048 | update_compositions (start1 + len2, end2, CHECK_TAIL); | |
b229b8d1 RS |
4049 | } |
4050 | /* Non-adjacent regions, because end1 != start2, bleagh... */ | |
4051 | else | |
4052 | { | |
ec1c14f6 RS |
4053 | len_mid = start2_byte - (start1_byte + len1_byte); |
4054 | ||
4055 | if (len1_byte == len2_byte) | |
b229b8d1 RS |
4056 | /* Regions are same size, though, how nice. */ |
4057 | { | |
4058 | modify_region (current_buffer, start1, end1); | |
4059 | modify_region (current_buffer, start2, end2); | |
4060 | record_change (start1, len1); | |
4061 | record_change (start2, len2); | |
b229b8d1 RS |
4062 | tmp_interval1 = copy_intervals (cur_intv, start1, len1); |
4063 | tmp_interval2 = copy_intervals (cur_intv, start2, len2); | |
09dbcf71 RS |
4064 | Fset_text_properties (make_number (start1), make_number (end1), |
4065 | Qnil, Qnil); | |
4066 | Fset_text_properties (make_number (start2), make_number (end2), | |
4067 | Qnil, Qnil); | |
b229b8d1 | 4068 | |
ec1c14f6 RS |
4069 | if (len1_byte > 20000) |
4070 | temp = (unsigned char *) xmalloc (len1_byte); | |
3c6bc7d0 | 4071 | else |
ec1c14f6 | 4072 | temp = (unsigned char *) alloca (len1_byte); |
23017390 KH |
4073 | start1_addr = BYTE_POS_ADDR (start1_byte); |
4074 | start2_addr = BYTE_POS_ADDR (start2_byte); | |
ec1c14f6 RS |
4075 | bcopy (start1_addr, temp, len1_byte); |
4076 | bcopy (start2_addr, start1_addr, len2_byte); | |
4077 | bcopy (temp, start2_addr, len1_byte); | |
4078 | if (len1_byte > 20000) | |
afd74e25 | 4079 | xfree (temp); |
b229b8d1 RS |
4080 | graft_intervals_into_buffer (tmp_interval1, start2, |
4081 | len1, current_buffer, 0); | |
4082 | graft_intervals_into_buffer (tmp_interval2, start1, | |
4083 | len2, current_buffer, 0); | |
b229b8d1 RS |
4084 | } |
4085 | ||
ec1c14f6 | 4086 | else if (len1_byte < len2_byte) /* Second region larger than first */ |
b229b8d1 RS |
4087 | /* Non-adjacent & unequal size, area between must also be shifted. */ |
4088 | { | |
b229b8d1 RS |
4089 | modify_region (current_buffer, start1, end2); |
4090 | record_change (start1, (end2 - start1)); | |
b229b8d1 RS |
4091 | tmp_interval1 = copy_intervals (cur_intv, start1, len1); |
4092 | tmp_interval_mid = copy_intervals (cur_intv, end1, len_mid); | |
4093 | tmp_interval2 = copy_intervals (cur_intv, start2, len2); | |
09dbcf71 RS |
4094 | Fset_text_properties (make_number (start1), make_number (end2), |
4095 | Qnil, Qnil); | |
b229b8d1 | 4096 | |
3c6bc7d0 | 4097 | /* holds region 2 */ |
ec1c14f6 RS |
4098 | if (len2_byte > 20000) |
4099 | temp = (unsigned char *) xmalloc (len2_byte); | |
3c6bc7d0 | 4100 | else |
ec1c14f6 | 4101 | temp = (unsigned char *) alloca (len2_byte); |
23017390 KH |
4102 | start1_addr = BYTE_POS_ADDR (start1_byte); |
4103 | start2_addr = BYTE_POS_ADDR (start2_byte); | |
ec1c14f6 RS |
4104 | bcopy (start2_addr, temp, len2_byte); |
4105 | bcopy (start1_addr, start1_addr + len_mid + len2_byte, len1_byte); | |
4106 | safe_bcopy (start1_addr + len1_byte, start1_addr + len2_byte, len_mid); | |
4107 | bcopy (temp, start1_addr, len2_byte); | |
4108 | if (len2_byte > 20000) | |
afd74e25 | 4109 | xfree (temp); |
b229b8d1 RS |
4110 | graft_intervals_into_buffer (tmp_interval1, end2 - len1, |
4111 | len1, current_buffer, 0); | |
4112 | graft_intervals_into_buffer (tmp_interval_mid, start1 + len2, | |
4113 | len_mid, current_buffer, 0); | |
4114 | graft_intervals_into_buffer (tmp_interval2, start1, | |
4115 | len2, current_buffer, 0); | |
b229b8d1 RS |
4116 | } |
4117 | else | |
4118 | /* Second region smaller than first. */ | |
4119 | { | |
b229b8d1 RS |
4120 | record_change (start1, (end2 - start1)); |
4121 | modify_region (current_buffer, start1, end2); | |
4122 | ||
b229b8d1 RS |
4123 | tmp_interval1 = copy_intervals (cur_intv, start1, len1); |
4124 | tmp_interval_mid = copy_intervals (cur_intv, end1, len_mid); | |
4125 | tmp_interval2 = copy_intervals (cur_intv, start2, len2); | |
09dbcf71 RS |
4126 | Fset_text_properties (make_number (start1), make_number (end2), |
4127 | Qnil, Qnil); | |
b229b8d1 | 4128 | |
3c6bc7d0 | 4129 | /* holds region 1 */ |
ec1c14f6 RS |
4130 | if (len1_byte > 20000) |
4131 | temp = (unsigned char *) xmalloc (len1_byte); | |
3c6bc7d0 | 4132 | else |
ec1c14f6 | 4133 | temp = (unsigned char *) alloca (len1_byte); |
23017390 KH |
4134 | start1_addr = BYTE_POS_ADDR (start1_byte); |
4135 | start2_addr = BYTE_POS_ADDR (start2_byte); | |
ec1c14f6 RS |
4136 | bcopy (start1_addr, temp, len1_byte); |
4137 | bcopy (start2_addr, start1_addr, len2_byte); | |
4138 | bcopy (start1_addr + len1_byte, start1_addr + len2_byte, len_mid); | |
4139 | bcopy (temp, start1_addr + len2_byte + len_mid, len1_byte); | |
4140 | if (len1_byte > 20000) | |
afd74e25 | 4141 | xfree (temp); |
b229b8d1 RS |
4142 | graft_intervals_into_buffer (tmp_interval1, end2 - len1, |
4143 | len1, current_buffer, 0); | |
4144 | graft_intervals_into_buffer (tmp_interval_mid, start1 + len2, | |
4145 | len_mid, current_buffer, 0); | |
4146 | graft_intervals_into_buffer (tmp_interval2, start1, | |
4147 | len2, current_buffer, 0); | |
b229b8d1 | 4148 | } |
d5c2c403 KH |
4149 | |
4150 | update_compositions (start1, start1 + len2, CHECK_BORDER); | |
4151 | update_compositions (end2 - len1, end2, CHECK_BORDER); | |
b229b8d1 RS |
4152 | } |
4153 | ||
ec1c14f6 RS |
4154 | /* When doing multiple transpositions, it might be nice |
4155 | to optimize this. Perhaps the markers in any one buffer | |
4156 | should be organized in some sorted data tree. */ | |
b229b8d1 | 4157 | if (NILP (leave_markers)) |
8de1d5f0 | 4158 | { |
ec1c14f6 RS |
4159 | transpose_markers (start1, end1, start2, end2, |
4160 | start1_byte, start1_byte + len1_byte, | |
4161 | start2_byte, start2_byte + len2_byte); | |
8de1d5f0 KH |
4162 | fix_overlays_in_range (start1, end2); |
4163 | } | |
b229b8d1 RS |
4164 | |
4165 | return Qnil; | |
4166 | } | |
35692fe0 | 4167 | |
35692fe0 JB |
4168 | \f |
4169 | void | |
4170 | syms_of_editfns () | |
4171 | { | |
260e2e2a KH |
4172 | environbuf = 0; |
4173 | ||
4174 | Qbuffer_access_fontify_functions | |
4175 | = intern ("buffer-access-fontify-functions"); | |
4176 | staticpro (&Qbuffer_access_fontify_functions); | |
4177 | ||
7ee72033 | 4178 | DEFVAR_LISP ("inhibit-field-text-motion", &Vinhibit_field_text_motion, |
7dcece14 | 4179 | doc: /* Non-nil means text motion commands don't notice fields. */); |
9a74e7e5 GM |
4180 | Vinhibit_field_text_motion = Qnil; |
4181 | ||
260e2e2a | 4182 | DEFVAR_LISP ("buffer-access-fontify-functions", |
7ee72033 MB |
4183 | &Vbuffer_access_fontify_functions, |
4184 | doc: /* List of functions called by `buffer-substring' to fontify if necessary. | |
a1f17501 PJ |
4185 | Each function is called with two arguments which specify the range |
4186 | of the buffer being accessed. */); | |
260e2e2a KH |
4187 | Vbuffer_access_fontify_functions = Qnil; |
4188 | ||
af209db8 RS |
4189 | { |
4190 | Lisp_Object obuf; | |
4191 | extern Lisp_Object Vprin1_to_string_buffer; | |
4192 | obuf = Fcurrent_buffer (); | |
4193 | /* Do this here, because init_buffer_once is too early--it won't work. */ | |
4194 | Fset_buffer (Vprin1_to_string_buffer); | |
4195 | /* Make sure buffer-access-fontify-functions is nil in this buffer. */ | |
4196 | Fset (Fmake_local_variable (intern ("buffer-access-fontify-functions")), | |
4197 | Qnil); | |
4198 | Fset_buffer (obuf); | |
4199 | } | |
4200 | ||
0b6fd023 | 4201 | DEFVAR_LISP ("buffer-access-fontified-property", |
7ee72033 MB |
4202 | &Vbuffer_access_fontified_property, |
4203 | doc: /* Property which (if non-nil) indicates text has been fontified. | |
a1f17501 PJ |
4204 | `buffer-substring' need not call the `buffer-access-fontify-functions' |
4205 | functions if all the text being accessed has this property. */); | |
260e2e2a KH |
4206 | Vbuffer_access_fontified_property = Qnil; |
4207 | ||
7ee72033 MB |
4208 | DEFVAR_LISP ("system-name", &Vsystem_name, |
4209 | doc: /* The name of the machine Emacs is running on. */); | |
34a7a267 | 4210 | |
7ee72033 MB |
4211 | DEFVAR_LISP ("user-full-name", &Vuser_full_name, |
4212 | doc: /* The full name of the user logged in. */); | |
f43754f6 | 4213 | |
7ee72033 MB |
4214 | DEFVAR_LISP ("user-login-name", &Vuser_login_name, |
4215 | doc: /* The user's name, taken from environment variables if possible. */); | |
f43754f6 | 4216 | |
7ee72033 MB |
4217 | DEFVAR_LISP ("user-real-login-name", &Vuser_real_login_name, |
4218 | doc: /* The user's name, based upon the real uid only. */); | |
35692fe0 | 4219 | |
0963334d | 4220 | defsubr (&Spropertize); |
35692fe0 JB |
4221 | defsubr (&Schar_equal); |
4222 | defsubr (&Sgoto_char); | |
4223 | defsubr (&Sstring_to_char); | |
4224 | defsubr (&Schar_to_string); | |
4225 | defsubr (&Sbuffer_substring); | |
260e2e2a | 4226 | defsubr (&Sbuffer_substring_no_properties); |
35692fe0 JB |
4227 | defsubr (&Sbuffer_string); |
4228 | ||
4229 | defsubr (&Spoint_marker); | |
4230 | defsubr (&Smark_marker); | |
4231 | defsubr (&Spoint); | |
4232 | defsubr (&Sregion_beginning); | |
4233 | defsubr (&Sregion_end); | |
7df74da6 | 4234 | |
0daf6e8d GM |
4235 | staticpro (&Qfield); |
4236 | Qfield = intern ("field"); | |
ee547125 MB |
4237 | staticpro (&Qboundary); |
4238 | Qboundary = intern ("boundary"); | |
0daf6e8d GM |
4239 | defsubr (&Sfield_beginning); |
4240 | defsubr (&Sfield_end); | |
4241 | defsubr (&Sfield_string); | |
4242 | defsubr (&Sfield_string_no_properties); | |
8bf64fe8 | 4243 | defsubr (&Sdelete_field); |
0daf6e8d GM |
4244 | defsubr (&Sconstrain_to_field); |
4245 | ||
7df74da6 RS |
4246 | defsubr (&Sline_beginning_position); |
4247 | defsubr (&Sline_end_position); | |
4248 | ||
35692fe0 JB |
4249 | /* defsubr (&Smark); */ |
4250 | /* defsubr (&Sset_mark); */ | |
4251 | defsubr (&Ssave_excursion); | |
4bc8c7d2 | 4252 | defsubr (&Ssave_current_buffer); |
35692fe0 JB |
4253 | |
4254 | defsubr (&Sbufsize); | |
4255 | defsubr (&Spoint_max); | |
4256 | defsubr (&Spoint_min); | |
4257 | defsubr (&Spoint_min_marker); | |
4258 | defsubr (&Spoint_max_marker); | |
c86212b9 RS |
4259 | defsubr (&Sgap_position); |
4260 | defsubr (&Sgap_size); | |
7df74da6 | 4261 | defsubr (&Sposition_bytes); |
3ab0732d | 4262 | defsubr (&Sbyte_to_position); |
c9ed721d | 4263 | |
35692fe0 JB |
4264 | defsubr (&Sbobp); |
4265 | defsubr (&Seobp); | |
4266 | defsubr (&Sbolp); | |
4267 | defsubr (&Seolp); | |
850a8179 JB |
4268 | defsubr (&Sfollowing_char); |
4269 | defsubr (&Sprevious_char); | |
35692fe0 | 4270 | defsubr (&Schar_after); |
fb8106e8 | 4271 | defsubr (&Schar_before); |
35692fe0 JB |
4272 | defsubr (&Sinsert); |
4273 | defsubr (&Sinsert_before_markers); | |
be91036a RS |
4274 | defsubr (&Sinsert_and_inherit); |
4275 | defsubr (&Sinsert_and_inherit_before_markers); | |
35692fe0 JB |
4276 | defsubr (&Sinsert_char); |
4277 | ||
4278 | defsubr (&Suser_login_name); | |
4279 | defsubr (&Suser_real_login_name); | |
4280 | defsubr (&Suser_uid); | |
4281 | defsubr (&Suser_real_uid); | |
4282 | defsubr (&Suser_full_name); | |
7fd233b3 | 4283 | defsubr (&Semacs_pid); |
d940e0e4 | 4284 | defsubr (&Scurrent_time); |
a82d387c | 4285 | defsubr (&Sformat_time_string); |
34a7a267 | 4286 | defsubr (&Sfloat_time); |
4691c06d | 4287 | defsubr (&Sdecode_time); |
cce7b8a0 | 4288 | defsubr (&Sencode_time); |
35692fe0 | 4289 | defsubr (&Scurrent_time_string); |
c2662aea | 4290 | defsubr (&Scurrent_time_zone); |
143cb9a9 | 4291 | defsubr (&Sset_time_zone_rule); |
35692fe0 | 4292 | defsubr (&Ssystem_name); |
35692fe0 | 4293 | defsubr (&Smessage); |
cacc3e2c RS |
4294 | defsubr (&Smessage_box); |
4295 | defsubr (&Smessage_or_box); | |
b14dda8a | 4296 | defsubr (&Scurrent_message); |
35692fe0 | 4297 | defsubr (&Sformat); |
35692fe0 JB |
4298 | |
4299 | defsubr (&Sinsert_buffer_substring); | |
e9cf2084 | 4300 | defsubr (&Scompare_buffer_substrings); |
35692fe0 JB |
4301 | defsubr (&Ssubst_char_in_region); |
4302 | defsubr (&Stranslate_region); | |
4303 | defsubr (&Sdelete_region); | |
7dae4502 | 4304 | defsubr (&Sdelete_and_extract_region); |
35692fe0 JB |
4305 | defsubr (&Swiden); |
4306 | defsubr (&Snarrow_to_region); | |
4307 | defsubr (&Ssave_restriction); | |
b229b8d1 | 4308 | defsubr (&Stranspose_regions); |
35692fe0 | 4309 | } |
ab5796a9 MB |
4310 | |
4311 | /* arch-tag: fc3827d8-6f60-4067-b11e-c3218031b018 | |
4312 | (do not change this comment) */ |