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c6045832 | 1 | /* Record indices of function doc strings stored in a file. |
3a22ee35 | 2 | Copyright (C) 1985, 1986, 1993, 1994 Free Software Foundation, Inc. |
c6045832 JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 1, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | ||
18160b98 | 21 | #include <config.h> |
c6045832 JB |
22 | |
23 | #include <sys/types.h> | |
24 | #include <sys/file.h> /* Must be after sys/types.h for USG and BSD4_1*/ | |
25 | ||
26 | #ifdef USG5 | |
27 | #include <fcntl.h> | |
28 | #endif | |
29 | ||
29beb080 RS |
30 | #ifdef HAVE_UNISTD_H |
31 | #include <unistd.h> | |
32 | #endif | |
33 | ||
c6045832 JB |
34 | #ifndef O_RDONLY |
35 | #define O_RDONLY 0 | |
36 | #endif | |
37 | ||
c6045832 JB |
38 | #include "lisp.h" |
39 | #include "buffer.h" | |
665d3046 | 40 | #include "keyboard.h" |
c6045832 | 41 | |
9fbfa962 | 42 | Lisp_Object Vdoc_file_name; |
c6045832 | 43 | |
9a425dcb RS |
44 | extern Lisp_Object Voverriding_local_map; |
45 | ||
c6045832 JB |
46 | Lisp_Object |
47 | get_doc_string (filepos) | |
48 | long filepos; | |
49 | { | |
50 | char buf[512 * 32 + 1]; | |
51 | register int fd; | |
52 | register char *name; | |
53 | register char *p, *p1; | |
54 | register int count; | |
55 | extern char *index (); | |
56 | ||
ba870521 | 57 | if (XTYPE (Vdoc_directory) != Lisp_String |
c6045832 JB |
58 | || XTYPE (Vdoc_file_name) != Lisp_String) |
59 | return Qnil; | |
60 | ||
ba870521 | 61 | name = (char *) alloca (XSTRING (Vdoc_directory)->size |
c6045832 | 62 | + XSTRING (Vdoc_file_name)->size + 8); |
ba870521 | 63 | strcpy (name, XSTRING (Vdoc_directory)->data); |
c6045832 JB |
64 | strcat (name, XSTRING (Vdoc_file_name)->data); |
65 | #ifdef VMS | |
66 | #ifndef VMS4_4 | |
67 | /* For VMS versions with limited file name syntax, | |
68 | convert the name to something VMS will allow. */ | |
69 | p = name; | |
70 | while (*p) | |
71 | { | |
72 | if (*p == '-') | |
73 | *p = '_'; | |
74 | p++; | |
75 | } | |
76 | #endif /* not VMS4_4 */ | |
77 | #ifdef VMS4_4 | |
78 | strcpy (name, sys_translate_unix (name)); | |
79 | #endif /* VMS4_4 */ | |
80 | #endif /* VMS */ | |
81 | ||
82 | fd = open (name, O_RDONLY, 0); | |
83 | if (fd < 0) | |
84 | error ("Cannot open doc string file \"%s\"", name); | |
85 | if (0 > lseek (fd, filepos, 0)) | |
86 | { | |
87 | close (fd); | |
88 | error ("Position %ld out of range in doc string file \"%s\"", | |
89 | filepos, name); | |
90 | } | |
91 | p = buf; | |
92 | while (p != buf + sizeof buf - 1) | |
93 | { | |
94 | count = read (fd, p, 512); | |
95 | p[count] = 0; | |
96 | if (!count) | |
97 | break; | |
98 | p1 = index (p, '\037'); | |
99 | if (p1) | |
100 | { | |
101 | *p1 = 0; | |
102 | p = p1; | |
103 | break; | |
104 | } | |
105 | p += count; | |
106 | } | |
107 | close (fd); | |
108 | return make_string (buf, p - buf); | |
109 | } | |
110 | ||
ee04dc54 | 111 | DEFUN ("documentation", Fdocumentation, Sdocumentation, 1, 2, 0, |
08564963 JB |
112 | "Return the documentation string of FUNCTION.\n\ |
113 | Unless a non-nil second argument is given, the\n\ | |
ee04dc54 | 114 | string is passed through `substitute-command-keys'.") |
502ddf23 JB |
115 | (function, raw) |
116 | Lisp_Object function, raw; | |
c6045832 JB |
117 | { |
118 | Lisp_Object fun; | |
119 | Lisp_Object funcar; | |
ee04dc54 | 120 | Lisp_Object tem, doc; |
c6045832 | 121 | |
502ddf23 | 122 | fun = Findirect_function (function); |
c6045832 JB |
123 | |
124 | switch (XTYPE (fun)) | |
125 | { | |
126 | case Lisp_Subr: | |
127 | if (XSUBR (fun)->doc == 0) return Qnil; | |
128 | if ((int) XSUBR (fun)->doc >= 0) | |
ee04dc54 | 129 | doc = build_string (XSUBR (fun)->doc); |
c6045832 | 130 | else |
ee04dc54 RM |
131 | doc = get_doc_string (- (int) XSUBR (fun)->doc); |
132 | break; | |
c6045832 JB |
133 | |
134 | case Lisp_Compiled: | |
135 | if (XVECTOR (fun)->size <= COMPILED_DOC_STRING) | |
136 | return Qnil; | |
137 | tem = XVECTOR (fun)->contents[COMPILED_DOC_STRING]; | |
138 | if (XTYPE (tem) == Lisp_String) | |
ee04dc54 RM |
139 | doc = tem; |
140 | else if (XTYPE (tem) == Lisp_Int && XINT (tem) >= 0) | |
141 | doc = get_doc_string (XFASTINT (tem)); | |
142 | else | |
143 | return Qnil; | |
144 | break; | |
c6045832 JB |
145 | |
146 | case Lisp_String: | |
147 | case Lisp_Vector: | |
148 | return build_string ("Keyboard macro."); | |
149 | ||
150 | case Lisp_Cons: | |
151 | funcar = Fcar (fun); | |
152 | if (XTYPE (funcar) != Lisp_Symbol) | |
153 | return Fsignal (Qinvalid_function, Fcons (fun, Qnil)); | |
502ddf23 | 154 | else if (EQ (funcar, Qkeymap)) |
c6045832 JB |
155 | return build_string ("Prefix command (definition is a keymap associating keystrokes with\n\ |
156 | subcommands.)"); | |
502ddf23 JB |
157 | else if (EQ (funcar, Qlambda) |
158 | || EQ (funcar, Qautoload)) | |
c6045832 JB |
159 | { |
160 | tem = Fcar (Fcdr (Fcdr (fun))); | |
161 | if (XTYPE (tem) == Lisp_String) | |
ee04dc54 RM |
162 | doc = tem; |
163 | else if (XTYPE (tem) == Lisp_Int && XINT (tem) >= 0) | |
164 | doc = get_doc_string (XFASTINT (tem)); | |
165 | else | |
166 | return Qnil; | |
502ddf23 JB |
167 | |
168 | break; | |
c6045832 | 169 | } |
502ddf23 | 170 | else if (EQ (funcar, Qmocklisp)) |
c6045832 | 171 | return Qnil; |
502ddf23 | 172 | else if (EQ (funcar, Qmacro)) |
ee04dc54 | 173 | return Fdocumentation (Fcdr (fun), raw); |
c6045832 JB |
174 | |
175 | /* Fall through to the default to report an error. */ | |
176 | ||
177 | default: | |
178 | return Fsignal (Qinvalid_function, Fcons (fun, Qnil)); | |
179 | } | |
ee04dc54 | 180 | |
956ace37 | 181 | if (NILP (raw)) |
665d3046 JB |
182 | { |
183 | struct gcpro gcpro1; | |
184 | ||
185 | GCPRO1 (doc); | |
186 | doc = Fsubstitute_command_keys (doc); | |
187 | UNGCPRO; | |
188 | } | |
ee04dc54 | 189 | return doc; |
c6045832 JB |
190 | } |
191 | ||
b6c53774 | 192 | DEFUN ("documentation-property", Fdocumentation_property, Sdocumentation_property, 2, 3, 0, |
c6045832 | 193 | "Return the documentation string that is SYMBOL's PROP property.\n\ |
ee04dc54 | 194 | This is like `get', but it can refer to strings stored in the\n\ |
08564963 | 195 | `etc/DOC' file; and if the value is a string, it is passed through\n\ |
956ace37 JB |
196 | `substitute-command-keys'. A non-nil third argument avoids this\n\ |
197 | translation.") | |
ee04dc54 RM |
198 | (sym, prop, raw) |
199 | Lisp_Object sym, prop, raw; | |
c6045832 JB |
200 | { |
201 | register Lisp_Object tem; | |
202 | ||
203 | tem = Fget (sym, prop); | |
204 | if (XTYPE (tem) == Lisp_Int) | |
205 | tem = get_doc_string (XINT (tem) > 0 ? XINT (tem) : - XINT (tem)); | |
956ace37 | 206 | if (NILP (raw) && XTYPE (tem) == Lisp_String) |
992d176e RS |
207 | return Fsubstitute_command_keys (tem); |
208 | return tem; | |
c6045832 JB |
209 | } |
210 | \f | |
283e1184 JB |
211 | /* Scanning the DOC files and placing docstring offsets into functions. */ |
212 | ||
213 | static void | |
214 | store_function_docstring (fun, offset) | |
215 | Lisp_Object fun; | |
216 | int offset; | |
217 | { | |
218 | fun = indirect_function (fun); | |
219 | ||
220 | /* The type determines where the docstring is stored. */ | |
221 | ||
222 | /* Lisp_Subrs have a slot for it. */ | |
223 | if (XTYPE (fun) == Lisp_Subr) | |
224 | XSUBR (fun)->doc = (char *) - offset; | |
225 | ||
226 | /* If it's a lisp form, stick it in the form. */ | |
227 | else if (CONSP (fun)) | |
228 | { | |
229 | Lisp_Object tem; | |
230 | ||
231 | tem = XCONS (fun)->car; | |
232 | if (EQ (tem, Qlambda) || EQ (tem, Qautoload)) | |
233 | { | |
234 | tem = Fcdr (Fcdr (fun)); | |
235 | if (CONSP (tem) && | |
236 | XTYPE (XCONS (tem)->car) == Lisp_Int) | |
237 | XFASTINT (XCONS (tem)->car) = offset; | |
238 | } | |
239 | else if (EQ (tem, Qmacro)) | |
240 | store_function_docstring (XCONS (fun)->cdr, offset); | |
241 | } | |
242 | ||
243 | /* Bytecode objects sometimes have slots for it. */ | |
244 | else if (XTYPE (fun) == Lisp_Compiled) | |
245 | { | |
246 | /* This bytecode object must have a slot for the | |
247 | docstring, since we've found a docstring for it. */ | |
248 | if (XVECTOR (fun)->size <= COMPILED_DOC_STRING) | |
249 | abort (); | |
250 | ||
251 | XFASTINT (XVECTOR (fun)->contents[COMPILED_DOC_STRING]) = offset; | |
252 | } | |
253 | } | |
254 | ||
255 | ||
c6045832 JB |
256 | DEFUN ("Snarf-documentation", Fsnarf_documentation, Ssnarf_documentation, |
257 | 1, 1, 0, | |
258 | "Used during Emacs initialization, before dumping runnable Emacs,\n\ | |
08564963 | 259 | to find pointers to doc strings stored in `etc/DOC...' and\n\ |
c6045832 JB |
260 | record them in function definitions.\n\ |
261 | One arg, FILENAME, a string which does not include a directory.\n\ | |
08564963 | 262 | The file is found in `../etc' now; found in the `data-directory'\n\ |
c6045832 JB |
263 | when doc strings are referred to later in the dumped Emacs.") |
264 | (filename) | |
265 | Lisp_Object filename; | |
266 | { | |
267 | int fd; | |
268 | char buf[1024 + 1]; | |
269 | register int filled; | |
270 | register int pos; | |
271 | register char *p, *end; | |
272 | Lisp_Object sym, fun, tem; | |
273 | char *name; | |
274 | extern char *index (); | |
275 | ||
2bda628c JB |
276 | #ifndef CANNOT_DUMP |
277 | if (NILP (Vpurify_flag)) | |
278 | error ("Snarf-documentation can only be called in an undumped Emacs"); | |
279 | #endif | |
280 | ||
c6045832 JB |
281 | CHECK_STRING (filename, 0); |
282 | ||
283 | #ifndef CANNOT_DUMP | |
6367dc09 | 284 | name = (char *) alloca (XSTRING (filename)->size + 14); |
08564963 | 285 | strcpy (name, "../etc/"); |
c6045832 | 286 | #else /* CANNOT_DUMP */ |
ba870521 | 287 | CHECK_STRING (Vdoc_directory, 0); |
c6045832 | 288 | name = (char *) alloca (XSTRING (filename)->size + |
ba870521 KH |
289 | XSTRING (Vdoc_directory)->size + 1); |
290 | strcpy (name, XSTRING (Vdoc_directory)->data); | |
c6045832 JB |
291 | #endif /* CANNOT_DUMP */ |
292 | strcat (name, XSTRING (filename)->data); /*** Add this line ***/ | |
293 | #ifdef VMS | |
294 | #ifndef VMS4_4 | |
295 | /* For VMS versions with limited file name syntax, | |
296 | convert the name to something VMS will allow. */ | |
297 | p = name; | |
298 | while (*p) | |
299 | { | |
300 | if (*p == '-') | |
301 | *p = '_'; | |
302 | p++; | |
303 | } | |
304 | #endif /* not VMS4_4 */ | |
305 | #ifdef VMS4_4 | |
306 | strcpy (name, sys_translate_unix (name)); | |
307 | #endif /* VMS4_4 */ | |
308 | #endif /* VMS */ | |
309 | ||
310 | fd = open (name, O_RDONLY, 0); | |
311 | if (fd < 0) | |
312 | report_file_error ("Opening doc string file", | |
313 | Fcons (build_string (name), Qnil)); | |
314 | Vdoc_file_name = filename; | |
315 | filled = 0; | |
316 | pos = 0; | |
317 | while (1) | |
318 | { | |
319 | if (filled < 512) | |
320 | filled += read (fd, &buf[filled], sizeof buf - 1 - filled); | |
321 | if (!filled) | |
322 | break; | |
323 | ||
324 | buf[filled] = 0; | |
325 | p = buf; | |
326 | end = buf + (filled < 512 ? filled : filled - 128); | |
327 | while (p != end && *p != '\037') p++; | |
328 | /* p points to ^_Ffunctionname\n or ^_Vvarname\n. */ | |
329 | if (p != end) | |
330 | { | |
331 | end = index (p, '\n'); | |
332 | sym = oblookup (Vobarray, p + 2, end - p - 2); | |
333 | if (XTYPE (sym) == Lisp_Symbol) | |
334 | { | |
335 | /* Attach a docstring to a variable? */ | |
336 | if (p[1] == 'V') | |
337 | { | |
338 | /* Install file-position as variable-documentation property | |
339 | and make it negative for a user-variable | |
340 | (doc starts with a `*'). */ | |
341 | Fput (sym, Qvariable_documentation, | |
342 | make_number ((pos + end + 1 - buf) | |
343 | * (end[1] == '*' ? -1 : 1))); | |
344 | } | |
345 | ||
283e1184 | 346 | /* Attach a docstring to a function? */ |
c6045832 | 347 | else if (p[1] == 'F') |
283e1184 JB |
348 | store_function_docstring (sym, pos + end + 1 - buf); |
349 | ||
350 | else | |
351 | error ("DOC file invalid at position %d", pos); | |
c6045832 JB |
352 | } |
353 | } | |
354 | pos += end - buf; | |
355 | filled -= end - buf; | |
356 | bcopy (end, buf, filled); | |
357 | } | |
358 | close (fd); | |
359 | return Qnil; | |
360 | } | |
361 | \f | |
362 | DEFUN ("substitute-command-keys", Fsubstitute_command_keys, | |
363 | Ssubstitute_command_keys, 1, 1, 0, | |
364 | "Substitute key descriptions for command names in STRING.\n\ | |
365 | Return a new string which is STRING with substrings of the form \\=\\[COMMAND]\n\ | |
366 | replaced by either: a keystroke sequence that will invoke COMMAND,\n\ | |
367 | or \"M-x COMMAND\" if COMMAND is not on any keys.\n\ | |
368 | Substrings of the form \\=\\{MAPVAR} are replaced by summaries\n\ | |
369 | \(made by describe-bindings) of the value of MAPVAR, taken as a keymap.\n\ | |
370 | Substrings of the form \\=\\<MAPVAR> specify to use the value of MAPVAR\n\ | |
371 | as the keymap for future \\=\\[COMMAND] substrings.\n\ | |
372 | \\=\\= quotes the following character and is discarded;\n\ | |
373 | thus, \\=\\=\\=\\= puts \\=\\= into the output, and \\=\\=\\=\\[ puts \\=\\[ into the output.") | |
374 | (str) | |
375 | Lisp_Object str; | |
376 | { | |
377 | unsigned char *buf; | |
378 | int changed = 0; | |
379 | register unsigned char *strp; | |
380 | register unsigned char *bufp; | |
381 | int idx; | |
382 | int bsize; | |
383 | unsigned char *new; | |
665d3046 | 384 | Lisp_Object tem; |
c6045832 JB |
385 | Lisp_Object keymap; |
386 | unsigned char *start; | |
387 | int length; | |
665d3046 JB |
388 | Lisp_Object name; |
389 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
c6045832 | 390 | |
265a9e55 | 391 | if (NILP (str)) |
c6045832 JB |
392 | return Qnil; |
393 | ||
394 | CHECK_STRING (str, 0); | |
665d3046 JB |
395 | tem = Qnil; |
396 | keymap = Qnil; | |
397 | name = Qnil; | |
398 | GCPRO4 (str, tem, keymap, name); | |
c6045832 | 399 | |
9a425dcb RS |
400 | /* KEYMAP is either nil (which means search all the active keymaps) |
401 | or a specified local map (which means search just that and the | |
402 | global map). If non-nil, it might come from Voverriding_local_map, | |
403 | or from a \\<mapname> construct in STR itself.. */ | |
404 | keymap = Voverriding_local_map; | |
c6045832 JB |
405 | |
406 | bsize = XSTRING (str)->size; | |
407 | bufp = buf = (unsigned char *) xmalloc (bsize); | |
408 | ||
409 | strp = (unsigned char *) XSTRING (str)->data; | |
410 | while (strp < (unsigned char *) XSTRING (str)->data + XSTRING (str)->size) | |
411 | { | |
412 | if (strp[0] == '\\' && strp[1] == '=') | |
413 | { | |
414 | /* \= quotes the next character; | |
415 | thus, to put in \[ without its special meaning, use \=\[. */ | |
416 | changed = 1; | |
417 | *bufp++ = strp[2]; | |
418 | strp += 3; | |
419 | } | |
420 | else if (strp[0] == '\\' && strp[1] == '[') | |
421 | { | |
b6c53774 RS |
422 | Lisp_Object firstkey; |
423 | ||
c6045832 JB |
424 | changed = 1; |
425 | strp += 2; /* skip \[ */ | |
426 | start = strp; | |
427 | ||
428 | while ((strp - (unsigned char *) XSTRING (str)->data | |
429 | < XSTRING (str)->size) | |
430 | && *strp != ']') | |
431 | strp++; | |
432 | length = strp - start; | |
433 | strp++; /* skip ] */ | |
434 | ||
435 | /* Save STRP in IDX. */ | |
436 | idx = strp - (unsigned char *) XSTRING (str)->data; | |
437 | tem = Fintern (make_string (start, length), Qnil); | |
9a425dcb | 438 | tem = Fwhere_is_internal (tem, keymap, Qt, Qnil); |
c6045832 | 439 | |
b6c53774 RS |
440 | /* Disregard menu bar bindings; it is positively annoying to |
441 | mention them when there's no menu bar, and it isn't terribly | |
442 | useful even when there is a menu bar. */ | |
ef586bbd RS |
443 | if (!NILP (tem)) |
444 | { | |
445 | firstkey = Faref (tem, make_number (0)); | |
446 | if (EQ (firstkey, Qmenu_bar)) | |
447 | tem = Qnil; | |
448 | } | |
b6c53774 | 449 | |
265a9e55 | 450 | if (NILP (tem)) /* but not on any keys */ |
c6045832 JB |
451 | { |
452 | new = (unsigned char *) xrealloc (buf, bsize += 4); | |
453 | bufp += new - buf; | |
454 | buf = new; | |
455 | bcopy ("M-x ", bufp, 4); | |
456 | bufp += 4; | |
457 | goto subst; | |
458 | } | |
459 | else | |
460 | { /* function is on a key */ | |
461 | tem = Fkey_description (tem); | |
462 | goto subst_string; | |
463 | } | |
464 | } | |
465 | /* \{foo} is replaced with a summary of the keymap (symbol-value foo). | |
466 | \<foo> just sets the keymap used for \[cmd]. */ | |
467 | else if (strp[0] == '\\' && (strp[1] == '{' || strp[1] == '<')) | |
468 | { | |
469 | struct buffer *oldbuf; | |
c6045832 JB |
470 | |
471 | changed = 1; | |
472 | strp += 2; /* skip \{ or \< */ | |
473 | start = strp; | |
474 | ||
475 | while ((strp - (unsigned char *) XSTRING (str)->data | |
476 | < XSTRING (str)->size) | |
477 | && *strp != '}' && *strp != '>') | |
478 | strp++; | |
479 | length = strp - start; | |
480 | strp++; /* skip } or > */ | |
481 | ||
482 | /* Save STRP in IDX. */ | |
483 | idx = strp - (unsigned char *) XSTRING (str)->data; | |
484 | ||
485 | /* Get the value of the keymap in TEM, or nil if undefined. | |
486 | Do this while still in the user's current buffer | |
487 | in case it is a local variable. */ | |
488 | name = Fintern (make_string (start, length), Qnil); | |
489 | tem = Fboundp (name); | |
265a9e55 | 490 | if (! NILP (tem)) |
c6045832 JB |
491 | { |
492 | tem = Fsymbol_value (name); | |
265a9e55 | 493 | if (! NILP (tem)) |
665d3046 | 494 | tem = get_keymap_1 (tem, 0, 1); |
c6045832 JB |
495 | } |
496 | ||
497 | /* Now switch to a temp buffer. */ | |
498 | oldbuf = current_buffer; | |
499 | set_buffer_internal (XBUFFER (Vprin1_to_string_buffer)); | |
500 | ||
265a9e55 | 501 | if (NILP (tem)) |
c6045832 JB |
502 | { |
503 | name = Fsymbol_name (name); | |
504 | insert_string ("\nUses keymap \""); | |
5778daa9 | 505 | insert_from_string (name, 0, XSTRING (name)->size, 1); |
c6045832 JB |
506 | insert_string ("\", which is not currently defined.\n"); |
507 | if (start[-1] == '<') keymap = Qnil; | |
508 | } | |
509 | else if (start[-1] == '<') | |
510 | keymap = tem; | |
511 | else | |
f8ba73c1 | 512 | describe_map_tree (tem, 1, Qnil, Qnil, 0, 1); |
c6045832 JB |
513 | tem = Fbuffer_string (); |
514 | Ferase_buffer (); | |
515 | set_buffer_internal (oldbuf); | |
516 | ||
517 | subst_string: | |
518 | start = XSTRING (tem)->data; | |
519 | length = XSTRING (tem)->size; | |
520 | subst: | |
521 | new = (unsigned char *) xrealloc (buf, bsize += length); | |
522 | bufp += new - buf; | |
523 | buf = new; | |
524 | bcopy (start, bufp, length); | |
525 | bufp += length; | |
526 | /* Check STR again in case gc relocated it. */ | |
527 | strp = (unsigned char *) XSTRING (str)->data + idx; | |
528 | } | |
529 | else /* just copy other chars */ | |
530 | *bufp++ = *strp++; | |
531 | } | |
532 | ||
533 | if (changed) /* don't bother if nothing substituted */ | |
534 | tem = make_string (buf, bufp - buf); | |
535 | else | |
536 | tem = str; | |
9ac0d9e0 | 537 | xfree (buf); |
665d3046 | 538 | RETURN_UNGCPRO (tem); |
c6045832 JB |
539 | } |
540 | \f | |
541 | syms_of_doc () | |
542 | { | |
543 | DEFVAR_LISP ("internal-doc-file-name", &Vdoc_file_name, | |
544 | "Name of file containing documentation strings of built-in symbols."); | |
545 | Vdoc_file_name = Qnil; | |
546 | ||
547 | defsubr (&Sdocumentation); | |
548 | defsubr (&Sdocumentation_property); | |
549 | defsubr (&Ssnarf_documentation); | |
550 | defsubr (&Ssubstitute_command_keys); | |
551 | } |