Mercurial > hg > xemacs-beta
annotate src/doc.c @ 5795:d2c0ff38ad5c
Report lstream errors when encoding/decoding.
See <CAHCOHQ=FAieD-2nP303fMvwkii8HK2z+X7gRZ2+4PH1CA5_-NA@mail.gmail.com> in
xemacs-patches.
| author | Jerry James <james@xemacs.org> |
|---|---|
| date | Wed, 14 May 2014 14:16:24 -0600 |
| parents | 72c5d36ba3b6 |
| children | a216b3c2b09e |
| rev | line source |
|---|---|
| 428 | 1 /* Record indices of function doc strings stored in a file. |
| 2 Copyright (C) 1985, 1986, 1992, 1993, 1994, 1995 | |
| 3 Free Software Foundation, Inc. | |
| 2367 | 4 Copyright (C) 2001, 2002, 2004 Ben Wing. |
| 428 | 5 |
| 6 This file is part of XEmacs. | |
| 7 | |
|
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8 XEmacs is free software: you can redistribute it and/or modify it |
| 428 | 9 under the terms of the GNU General Public License as published by the |
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10 Free Software Foundation, either version 3 of the License, or (at your |
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11 option) any later version. |
| 428 | 12 |
| 13 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
|
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19 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 428 | 20 |
| 21 /* Synched up with: FSF 19.30. */ | |
| 22 | |
| 814 | 23 /* This file has been Mule-ized. */ |
| 428 | 24 |
| 25 #include <config.h> | |
| 26 #include "lisp.h" | |
| 27 | |
| 28 #include "buffer.h" | |
| 29 #include "bytecode.h" | |
| 814 | 30 #include "file-coding.h" |
| 428 | 31 #include "insdel.h" |
| 32 #include "keymap.h" | |
| 814 | 33 #include "lstream.h" |
| 428 | 34 #include "sysfile.h" |
| 35 | |
| 36 Lisp_Object Vinternal_doc_file_name; | |
| 37 | |
|
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38 Lisp_Object QSsubstitute, Qdefvar; |
| 428 | 39 |
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40 Lisp_Object Qfunction_documentation; |
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41 |
| 3368 | 42 /* Work out what source file a function or variable came from, taking the |
| 43 information from the documentation file. */ | |
| 44 | |
| 45 static Lisp_Object | |
| 46 extract_object_file_name (int fd, EMACS_INT doc_pos, | |
| 47 Ibyte *name_nonreloc, Lisp_Object name_reloc, | |
| 48 int standard_doc_file) | |
| 49 { | |
| 3383 | 50 Ibyte buf[DOC_MAX_FILENAME_LENGTH+1]; |
| 3368 | 51 Ibyte *buffer = buf; |
| 3411 | 52 int buffer_size = sizeof (buf) - 1, space_left; |
| 3368 | 53 Ibyte *from, *to; |
| 54 REGISTER Ibyte *p = buffer; | |
| 55 Lisp_Object return_me; | |
| 56 Lisp_Object fdstream = Qnil, instream = Qnil; | |
| 57 struct gcpro gcpro1, gcpro2; | |
| 58 EMACS_INT position, seenS = 0; | |
| 59 | |
| 60 GCPRO2 (fdstream, instream); | |
| 61 | |
| 3411 | 62 position = doc_pos > buffer_size ? |
| 63 doc_pos - buffer_size : 0; | |
| 3368 | 64 |
| 65 if (0 > lseek (fd, position, 0)) | |
| 66 { | |
| 67 if (name_nonreloc) | |
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68 name_reloc = build_istring (name_nonreloc); |
| 3368 | 69 return_me = list3 (build_msg_string |
| 70 ("Position out of range in doc string file"), | |
|
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71 name_reloc, make_fixnum (position)); |
| 3368 | 72 goto done; |
| 73 } | |
| 74 | |
| 75 fdstream = make_filedesc_input_stream (fd, 0, -1, 0); | |
| 76 Lstream_set_buffering (XLSTREAM (fdstream), LSTREAM_UNBUFFERED, 0); | |
| 77 instream = | |
| 78 make_coding_input_stream | |
| 79 (XLSTREAM (fdstream), standard_doc_file ? Qescape_quoted : Qbinary, | |
| 80 CODING_DECODE, 0); | |
| 81 Lstream_set_buffering (XLSTREAM (instream), LSTREAM_UNBUFFERED, 0); | |
| 82 | |
| 83 space_left = buffer_size - (p - buffer); | |
| 84 while (space_left > 0) | |
| 85 { | |
| 86 int nread; | |
| 87 | |
| 88 nread = Lstream_read (XLSTREAM (instream), p, space_left); | |
| 89 if (nread < 0) | |
| 90 { | |
| 91 return_me = list1 (build_msg_string | |
| 92 ("Read error on documentation file")); | |
| 93 goto done; | |
| 94 } | |
| 95 | |
| 96 p[nread] = 0; | |
| 97 | |
| 98 if (!nread) | |
| 99 break; | |
| 100 | |
| 101 p += nread; | |
| 102 space_left = buffer_size - (p - buffer); | |
| 103 } | |
| 104 | |
| 105 /* First, search backward for the "\037S" that marks the beginning of the | |
| 106 file name, then search forward from that to the newline or to the end | |
| 107 of the buffer. */ | |
| 108 from = p; | |
| 109 | |
| 110 while (from > buf) | |
| 111 { | |
| 112 --from; | |
| 113 if (seenS) | |
| 114 { | |
| 115 if ('\037' == *from) | |
| 116 { | |
| 117 /* Got a file name; adjust `from' to point to it, break out of | |
| 118 the loop. */ | |
| 119 from += 2; | |
| 120 break; | |
| 121 } | |
| 122 } | |
| 123 /* Is *from 'S' ? */ | |
| 124 seenS = ('S' == *from); | |
| 125 } | |
| 126 | |
| 127 if (buf == from) | |
| 128 { | |
| 129 /* We've scanned back to the beginning of the buffer without hitting | |
| 130 the file name. Either the file name plus the symbol name is longer | |
| 131 than DOC_MAX_FILENAME_LENGTH--which shouldn't happen, because it'll | |
| 132 trigger an assertion failure in make-docfile, the DOC file is | |
| 133 corrupt, or it was produced by a version of make-docfile that | |
| 134 doesn't store the file name with the symbol name and docstring. */ | |
| 135 return_me = list1 (build_msg_string | |
| 136 ("Object file name not stored in doc file")); | |
| 137 goto done; | |
| 138 } | |
| 139 | |
| 140 to = from; | |
| 141 /* Search for the end of the file name. */ | |
| 142 while (++to < p) | |
| 143 { | |
| 144 if ('\n' == *to || '\037' == *to) | |
| 145 { | |
| 146 break; | |
| 147 } | |
| 148 } | |
| 149 | |
| 150 /* Don't require the file name to end in a newline. */ | |
| 151 return_me = make_string (from, to - from); | |
| 152 | |
| 153 done: | |
| 154 if (!NILP (instream)) | |
| 155 { | |
| 156 Lstream_delete (XLSTREAM (instream)); | |
| 157 Lstream_delete (XLSTREAM (fdstream)); | |
| 158 } | |
| 159 | |
| 160 UNGCPRO; | |
| 161 return return_me; | |
| 162 } | |
| 428 | 163 |
| 164 Lisp_Object | |
| 165 unparesseuxify_doc_string (int fd, EMACS_INT position, | |
| 867 | 166 Ibyte *name_nonreloc, Lisp_Object name_reloc, |
| 814 | 167 int standard_doc_file) |
| 428 | 168 { |
| 867 | 169 Ibyte buf[512 * 32 + 1]; |
| 170 Ibyte *buffer = buf; | |
| 3411 | 171 int buffer_size = sizeof (buf) - 1; |
| 867 | 172 Ibyte *from, *to; |
| 173 REGISTER Ibyte *p = buffer; | |
| 428 | 174 Lisp_Object return_me; |
| 814 | 175 Lisp_Object fdstream = Qnil, instream = Qnil; |
| 176 struct gcpro gcpro1, gcpro2; | |
| 177 | |
| 178 GCPRO2 (fdstream, instream); | |
| 428 | 179 |
| 180 if (0 > lseek (fd, position, 0)) | |
| 181 { | |
| 182 if (name_nonreloc) | |
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183 name_reloc = build_istring (name_nonreloc); |
| 771 | 184 return_me = list3 (build_msg_string |
| 428 | 185 ("Position out of range in doc string file"), |
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186 name_reloc, make_fixnum (position)); |
| 428 | 187 goto done; |
| 188 } | |
| 189 | |
| 814 | 190 fdstream = make_filedesc_input_stream (fd, 0, -1, 0); |
| 191 Lstream_set_buffering (XLSTREAM (fdstream), LSTREAM_UNBUFFERED, 0); | |
| 192 instream = | |
| 193 make_coding_input_stream | |
| 194 /* Major trouble if we are too clever when reading byte-code | |
| 195 instructions! | |
| 196 | |
| 197 #### We should have a way of handling escape-quoted elc files | |
| 198 (i.e. files with non-ASCII/Latin-1 chars in them). Currently this | |
| 199 is "solved" in bytecomp.el by never inserting lazy references in | |
| 200 such files. */ | |
| 826 | 201 (XLSTREAM (fdstream), standard_doc_file ? Qescape_quoted : Qbinary, |
| 814 | 202 CODING_DECODE, 0); |
| 203 Lstream_set_buffering (XLSTREAM (instream), LSTREAM_UNBUFFERED, 0); | |
| 204 | |
| 428 | 205 /* Read the doc string into a buffer. |
| 206 Use the fixed buffer BUF if it is big enough; otherwise allocate one. | |
| 207 We store the buffer in use in BUFFER and its size in BUFFER_SIZE. */ | |
| 208 | |
| 209 while (1) | |
| 210 { | |
| 211 int space_left = buffer_size - (p - buffer); | |
| 212 int nread; | |
| 213 | |
| 214 /* Switch to a bigger buffer if we need one. */ | |
| 215 if (space_left == 0) | |
| 216 { | |
| 867 | 217 Ibyte *old_buffer = buffer; |
| 3411 | 218 buffer_size *= 2; |
| 219 | |
| 771 | 220 if (buffer == buf) |
| 221 { | |
| 3411 | 222 buffer = xnew_ibytes (buffer_size + 1); |
| 771 | 223 memcpy (buffer, old_buffer, p - old_buffer); |
| 224 } | |
| 225 else | |
| 3411 | 226 XREALLOC_ARRAY (buffer, Ibyte, buffer_size + 1); |
| 428 | 227 p += buffer - old_buffer; |
| 228 space_left = buffer_size - (p - buffer); | |
| 229 } | |
| 230 | |
| 231 /* Don't read too much at one go. */ | |
| 232 if (space_left > 1024 * 8) | |
| 233 space_left = 1024 * 8; | |
| 814 | 234 nread = Lstream_read (XLSTREAM (instream), p, space_left); |
| 428 | 235 if (nread < 0) |
| 236 { | |
| 771 | 237 return_me = list1 (build_msg_string |
| 428 | 238 ("Read error on documentation file")); |
| 239 goto done; | |
| 240 } | |
| 241 p[nread] = 0; | |
| 242 if (!nread) | |
| 243 break; | |
| 244 { | |
| 867 | 245 Ibyte *p1 = qxestrchr (p, '\037'); /* End of doc string marker */ |
| 814 | 246 if (p1) |
| 247 { | |
| 248 *p1 = 0; | |
| 249 p = p1; | |
| 250 break; | |
| 251 } | |
| 428 | 252 } |
| 253 p += nread; | |
| 254 } | |
| 255 | |
| 256 /* Scan the text and remove quoting with ^A (char code 1). | |
| 257 ^A^A becomes ^A, ^A0 becomes a null char, and ^A_ becomes a ^_. */ | |
| 258 from = to = buffer; | |
| 259 while (from < p) | |
| 260 { | |
| 261 if (*from != 1 /*^A*/) | |
| 262 *to++ = *from++; | |
| 263 else | |
| 264 { | |
| 265 int c = *(++from); | |
| 266 | |
| 267 from++; | |
| 268 switch (c) | |
| 269 { | |
| 270 case 1: *to++ = c; break; | |
| 271 case '0': *to++ = '\0'; break; | |
| 272 case '_': *to++ = '\037'; break; | |
| 273 default: | |
| 771 | 274 return_me = list2 (build_msg_string |
| 428 | 275 ("Invalid data in documentation file -- ^A followed by weird code"), |
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276 make_fixnum (c)); |
| 428 | 277 goto done; |
| 278 } | |
| 279 } | |
| 280 } | |
| 281 | |
| 814 | 282 return_me = make_string (buffer, to - buffer); |
| 428 | 283 |
| 284 done: | |
| 814 | 285 if (!NILP (instream)) |
| 286 { | |
| 287 Lstream_delete (XLSTREAM (instream)); | |
| 288 Lstream_delete (XLSTREAM (fdstream)); | |
| 289 } | |
| 290 UNGCPRO; | |
| 428 | 291 if (buffer != buf) /* We must have allocated buffer above */ |
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292 xfree (buffer); |
| 428 | 293 return return_me; |
| 294 } | |
| 295 | |
| 771 | 296 #define string_join(dest, s1, s2) \ |
| 297 memcpy (dest, XSTRING_DATA (s1), XSTRING_LENGTH (s1)); \ | |
| 298 memcpy (dest + XSTRING_LENGTH (s1), XSTRING_DATA (s2), \ | |
| 299 XSTRING_LENGTH (s2)); \ | |
| 428 | 300 dest[XSTRING_LENGTH (s1) + XSTRING_LENGTH (s2)] = '\0' |
| 301 | |
| 302 /* Extract a doc string from a file. FILEPOS says where to get it. | |
| 303 (This could actually be byte code instructions/constants instead | |
| 304 of a doc string.) | |
| 305 If it is an integer, use that position in the standard DOC file. | |
| 306 If it is (FILE . INTEGER), use FILE as the file name | |
| 307 and INTEGER as the position in that file. | |
| 308 But if INTEGER is negative, make it positive. | |
| 309 (A negative integer is used for user variables, so we can distinguish | |
| 310 them without actually fetching the doc string.) */ | |
| 311 | |
| 312 static Lisp_Object | |
| 313 get_doc_string (Lisp_Object filepos) | |
| 314 { | |
| 315 REGISTER int fd; | |
| 867 | 316 REGISTER Ibyte *name_nonreloc = 0; |
| 428 | 317 EMACS_INT position; |
| 318 Lisp_Object file, tem; | |
| 319 Lisp_Object name_reloc = Qnil; | |
| 814 | 320 int standard_doc_file = 0; |
| 428 | 321 |
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322 if (FIXNUMP (filepos)) |
| 428 | 323 { |
| 324 file = Vinternal_doc_file_name; | |
| 814 | 325 standard_doc_file = 1; |
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326 position = XFIXNUM (filepos); |
| 428 | 327 } |
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328 else if (CONSP (filepos) && FIXNUMP (XCDR (filepos))) |
| 428 | 329 { |
| 330 file = XCAR (filepos); | |
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331 position = XFIXNUM (XCDR (filepos)); |
| 428 | 332 if (position < 0) |
| 333 position = - position; | |
| 334 } | |
| 335 else | |
| 336 return Qnil; | |
| 337 | |
| 338 if (!STRINGP (file)) | |
| 339 return Qnil; | |
| 340 | |
| 341 /* Put the file name in NAME as a C string. | |
| 342 If it is relative, combine it with Vdoc_directory. */ | |
| 343 | |
| 344 tem = Ffile_name_absolute_p (file); | |
| 345 if (NILP (tem)) | |
| 346 { | |
| 647 | 347 Bytecount minsize; |
| 428 | 348 /* XEmacs: Move this check here. OK if called during loadup to |
| 349 load byte code instructions. */ | |
| 350 if (!STRINGP (Vdoc_directory)) | |
| 351 return Qnil; | |
| 352 | |
| 353 minsize = XSTRING_LENGTH (Vdoc_directory); | |
| 354 /* sizeof ("../lib-src/") == 12 */ | |
| 355 if (minsize < 12) | |
| 356 minsize = 12; | |
| 867 | 357 name_nonreloc = alloca_ibytes (minsize + XSTRING_LENGTH (file) + 8); |
| 428 | 358 string_join (name_nonreloc, Vdoc_directory, file); |
| 359 } | |
| 360 else | |
| 361 name_reloc = file; | |
| 362 | |
| 771 | 363 fd = qxe_open (name_nonreloc ? name_nonreloc : |
| 364 XSTRING_DATA (name_reloc), O_RDONLY | OPEN_BINARY, 0); | |
| 428 | 365 if (fd < 0) |
| 366 { | |
| 367 if (purify_flag) | |
| 368 { | |
| 369 /* sizeof ("../lib-src/") == 12 */ | |
| 2367 | 370 name_nonreloc = alloca_ibytes (12 + XSTRING_LENGTH (file) + 8); |
| 428 | 371 /* Preparing to dump; DOC file is probably not installed. |
| 372 So check in ../lib-src. */ | |
| 2367 | 373 qxestrcpy_ascii (name_nonreloc, "../lib-src/"); |
| 771 | 374 qxestrcat (name_nonreloc, XSTRING_DATA (file)); |
| 428 | 375 |
| 771 | 376 fd = qxe_open (name_nonreloc, O_RDONLY | OPEN_BINARY, 0); |
| 428 | 377 } |
| 378 | |
| 379 if (fd < 0) | |
| 814 | 380 report_file_error ("Cannot open doc string file", |
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381 name_nonreloc ? build_istring (name_nonreloc) : |
| 814 | 382 name_reloc); |
| 428 | 383 } |
| 384 | |
| 814 | 385 tem = unparesseuxify_doc_string (fd, position, name_nonreloc, name_reloc, |
| 386 standard_doc_file); | |
| 771 | 387 retry_close (fd); |
| 428 | 388 |
| 389 if (!STRINGP (tem)) | |
| 563 | 390 signal_error_1 (Qinvalid_byte_code, tem); |
| 428 | 391 |
| 392 return tem; | |
| 393 } | |
| 394 | |
| 395 /* Get a string from position FILEPOS and pass it through the Lisp reader. | |
| 396 We use this for fetching the bytecode string and constants vector | |
| 397 of a compiled function from the .elc file. */ | |
| 398 | |
| 399 Lisp_Object | |
| 400 read_doc_string (Lisp_Object filepos) | |
| 401 { | |
| 402 Lisp_Object string = get_doc_string (filepos); | |
| 403 | |
| 404 if (!STRINGP (string)) | |
| 563 | 405 invalid_state ("loading bytecode failed to return string", string); |
| 428 | 406 return Fread (string); |
| 407 } | |
| 408 | |
| 3368 | 409 static Lisp_Object |
| 410 get_object_file_name (Lisp_Object filepos) | |
| 411 { | |
| 412 REGISTER int fd; | |
| 413 REGISTER Ibyte *name_nonreloc = 0; | |
| 414 EMACS_INT position; | |
| 415 Lisp_Object file, tem; | |
| 416 Lisp_Object name_reloc = Qnil; | |
| 417 int standard_doc_file = 0; | |
| 418 | |
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parents:
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diff
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419 if (FIXNUMP (filepos)) |
| 3368 | 420 { |
| 421 file = Vinternal_doc_file_name; | |
| 422 standard_doc_file = 1; | |
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parents:
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diff
changeset
|
423 position = XFIXNUM (filepos); |
| 3368 | 424 } |
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parents:
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diff
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425 else if (CONSP (filepos) && FIXNUMP (XCDR (filepos))) |
| 3368 | 426 { |
| 427 file = XCAR (filepos); | |
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parents:
5402
diff
changeset
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428 position = XFIXNUM (XCDR (filepos)); |
| 3368 | 429 if (position < 0) |
| 430 position = - position; | |
| 431 } | |
| 432 else | |
| 433 return Qnil; | |
| 434 | |
| 435 if (!STRINGP (file)) | |
| 436 return Qnil; | |
| 437 | |
| 438 /* Put the file name in NAME as a C string. | |
| 439 If it is relative, combine it with Vdoc_directory. */ | |
| 440 | |
| 441 tem = Ffile_name_absolute_p (file); | |
| 442 if (NILP (tem)) | |
| 443 { | |
| 444 Bytecount minsize; | |
| 445 /* XEmacs: Move this check here. OK if called during loadup to | |
| 446 load byte code instructions. */ | |
| 447 if (!STRINGP (Vdoc_directory)) | |
| 448 return Qnil; | |
| 449 | |
| 450 minsize = XSTRING_LENGTH (Vdoc_directory); | |
| 451 /* sizeof ("../lib-src/") == 12 */ | |
| 452 if (minsize < 12) | |
| 453 minsize = 12; | |
| 454 name_nonreloc = alloca_ibytes (minsize + XSTRING_LENGTH (file) + 8); | |
| 455 string_join (name_nonreloc, Vdoc_directory, file); | |
| 456 } | |
| 457 else | |
| 458 name_reloc = file; | |
| 459 | |
| 460 fd = qxe_open (name_nonreloc ? name_nonreloc : | |
| 461 XSTRING_DATA (name_reloc), O_RDONLY | OPEN_BINARY, 0); | |
| 462 if (fd < 0) | |
| 463 { | |
| 464 if (purify_flag) | |
| 465 { | |
| 466 /* sizeof ("../lib-src/") == 12 */ | |
| 467 name_nonreloc = alloca_ibytes (12 + XSTRING_LENGTH (file) + 8); | |
| 468 /* Preparing to dump; DOC file is probably not installed. | |
| 469 So check in ../lib-src. */ | |
| 470 qxestrcpy_ascii (name_nonreloc, "../lib-src/"); | |
| 471 qxestrcat (name_nonreloc, XSTRING_DATA (file)); | |
| 472 | |
| 473 fd = qxe_open (name_nonreloc, O_RDONLY | OPEN_BINARY, 0); | |
| 474 } | |
| 475 | |
| 476 if (fd < 0) | |
| 477 report_file_error ("Cannot open doc string file", | |
|
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|
478 name_nonreloc ? build_istring (name_nonreloc) : |
| 3368 | 479 name_reloc); |
| 480 } | |
| 481 | |
| 482 tem = extract_object_file_name (fd, position, name_nonreloc, name_reloc, | |
| 483 standard_doc_file); | |
| 484 retry_close (fd); | |
| 485 | |
| 486 if (!STRINGP (tem)) | |
| 487 signal_error_1 (Qinvalid_byte_code, tem); | |
| 488 | |
| 489 return tem; | |
| 490 } | |
| 491 | |
| 492 | |
| 493 static void | |
|
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|
494 weird_doc (Lisp_Object sym, const Ascbyte *weirdness, const Ascbyte *type, |
| 3368 | 495 int pos) |
| 496 { | |
|
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497 if (!strcmp (weirdness, "duplicate")) return; |
| 3368 | 498 message ("Note: Strange doc (%s) for %s %s @ %d", |
|
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499 GETTEXT (weirdness), GETTEXT (type), |
|
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|
500 XSTRING_DATA (XSYMBOL (sym)->name), pos); |
| 3368 | 501 } |
| 502 | |
|
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|
503 DEFUN ("built-in-symbol-file", Fbuilt_in_symbol_file, 1, 2, 0, /* |
| 3368 | 504 Return the C source file built-in symbol SYM comes from. |
| 505 Don't use this. Use the more general `symbol-file' (q.v.) instead. | |
|
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506 |
|
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507 If TYPE is nil or omitted, any kind of definition is acceptable. |
|
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Change "special form" to "special operator" in our sources.
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508 If TYPE is `defun', then function, subr, special operator or macro definitions |
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|
509 are acceptable. |
|
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|
510 If TYPE is `defvar', then variable definitions are acceptable. |
| 3368 | 511 */ |
|
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|
512 (symbol, type)) |
| 3368 | 513 { |
| 514 /* This function can GC */ | |
| 515 Lisp_Object fun; | |
| 516 Lisp_Object filename = Qnil; | |
| 517 | |
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518 CHECK_SYMBOL (symbol); |
|
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519 |
|
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520 if (!UNBOUNDP (XSYMBOL_FUNCTION (symbol)) |
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|
521 && (NILP (type) || EQ (type, Qdefun))) |
| 3368 | 522 { |
| 523 fun = Findirect_function (symbol); | |
| 524 | |
|
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525 if (EQ (Qmacro, Fcar_safe (fun))) |
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526 { |
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527 fun = XCDR (fun); |
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528 } |
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529 |
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|
530 if (SUBRP (fun)) |
| 3368 | 531 { |
| 532 if (XSUBR (fun)->doc == 0) | |
| 533 return Qnil; | |
| 534 | |
| 535 if ((EMACS_INT) XSUBR (fun)->doc >= 0) | |
| 536 { | |
| 537 weird_doc (symbol, "No file info available for function", | |
| 538 GETTEXT("function"), 0); | |
| 539 return Qnil; | |
| 540 } | |
| 541 else | |
|
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542 { |
|
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543 filename = get_object_file_name |
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544 (make_fixnum (- (EMACS_INT) XSUBR (fun)->doc)); |
|
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545 return filename; |
|
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546 } |
|
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547 } |
|
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|
548 |
|
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|
549 if (COMPILED_FUNCTIONP (fun)) |
|
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550 { |
|
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Fix some bugs in load-history construction, built-in symbol file names.
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|
551 Lisp_Object tem; |
|
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552 Lisp_Compiled_Function *f = XCOMPILED_FUNCTION (fun); |
|
061e030e3270
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|
553 |
|
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|
554 if (! (f->flags.documentationp)) |
|
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555 return Qnil; |
|
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Fix some bugs in load-history construction, built-in symbol file names.
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|
556 tem = compiled_function_documentation (f); |
|
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557 if (NATNUMP (tem)) |
|
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558 { |
|
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559 return get_object_file_name (tem); |
|
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|
560 } |
| 3368 | 561 } |
| 562 } | |
|
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|
563 |
|
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|
564 if (!UNBOUNDP (XSYMBOL_VALUE (symbol)) && (NILP (type) || EQ (type, Qdefvar))) |
| 3368 | 565 { |
| 566 Lisp_Object doc_offset = Fget (symbol, Qvariable_documentation, Qnil); | |
| 567 | |
|
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568 if (!NILP (doc_offset)) |
| 3368 | 569 { |
|
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|
570 if (FIXNUMP (doc_offset)) |
| 3368 | 571 { |
|
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|
572 filename = get_object_file_name |
|
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573 (XFIXNUM (doc_offset) > 0 ? doc_offset |
|
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574 : make_fixnum (- XFIXNUM (doc_offset))); |
| 3368 | 575 } |
|
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|
576 return filename; |
| 3368 | 577 } |
| 578 } | |
|
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|
579 |
|
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|
580 return Qnil; |
| 3368 | 581 } |
| 582 | |
|
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583 DEFUN ("documentation-property", Fdocumentation_property, 2, 3, 0, /* |
|
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584 Return the documentation string that is SYMBOL's PROP property. |
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585 This is like `get', but it can refer to strings stored in the |
|
72c5d36ba3b6
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changeset
|
586 `doc-directory/DOC' file; and if the value is a string, it is passed |
|
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|
587 through `substitute-command-keys'. A non-nil third argument avoids this |
|
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|
588 translation. |
|
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589 */ |
|
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590 (symbol, prop, raw)) |
|
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591 { |
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592 /* This function can GC */ |
|
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593 Lisp_Object doc = Qnil; |
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594 #ifdef I18N3 |
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595 REGISTER Lisp_Object domain; |
|
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596 #endif |
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597 struct gcpro gcpro1; |
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598 |
|
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599 GCPRO1 (doc); |
|
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600 |
|
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601 doc = Fget (symbol, prop, Qnil); |
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602 if (FIXNUMP (doc)) |
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603 doc = get_doc_string (XFIXNUM (doc) > 0 ? doc : make_fixnum (- XFIXNUM (doc))); |
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604 else if (CONSP (doc)) |
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605 doc = get_doc_string (doc); |
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606 #ifdef I18N3 |
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607 if (!NILP (doc)) |
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608 { |
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609 domain = Fget (symbol, Qvariable_domain, Qnil); |
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610 if (NILP (domain)) |
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611 doc = Fgettext (doc); |
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612 else |
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613 doc = Fdgettext (domain, doc); |
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614 } |
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615 #endif |
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616 if (NILP (raw) && STRINGP (doc)) |
|
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617 doc = Fsubstitute_command_keys (doc); |
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618 UNGCPRO; |
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619 return doc; |
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620 } |
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621 |
| 428 | 622 DEFUN ("documentation", Fdocumentation, 1, 2, 0, /* |
| 623 Return the documentation string of FUNCTION. | |
| 444 | 624 Unless a non-nil second argument RAW is given, the |
| 428 | 625 string is passed through `substitute-command-keys'. |
| 626 */ | |
| 627 (function, raw)) | |
| 628 { | |
| 629 /* This function can GC */ | |
| 630 Lisp_Object fun; | |
| 631 Lisp_Object doc; | |
| 632 | |
|
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Make `define-function' accept docstring, as in GNU Emacs.
Mike Sperber <sperber@deinprogramm.de>
parents:
5634
diff
changeset
|
633 if (SYMBOLP (function)) |
|
72c5d36ba3b6
Make `define-function' accept docstring, as in GNU Emacs.
Mike Sperber <sperber@deinprogramm.de>
parents:
5634
diff
changeset
|
634 { |
|
72c5d36ba3b6
Make `define-function' accept docstring, as in GNU Emacs.
Mike Sperber <sperber@deinprogramm.de>
parents:
5634
diff
changeset
|
635 Lisp_Object tem = Fget (function, Qfunction_documentation, Qnil); |
|
72c5d36ba3b6
Make `define-function' accept docstring, as in GNU Emacs.
Mike Sperber <sperber@deinprogramm.de>
parents:
5634
diff
changeset
|
636 if (!NILP (tem)) |
|
72c5d36ba3b6
Make `define-function' accept docstring, as in GNU Emacs.
Mike Sperber <sperber@deinprogramm.de>
parents:
5634
diff
changeset
|
637 return Fdocumentation_property (function, Qfunction_documentation, |
|
72c5d36ba3b6
Make `define-function' accept docstring, as in GNU Emacs.
Mike Sperber <sperber@deinprogramm.de>
parents:
5634
diff
changeset
|
638 raw); |
|
72c5d36ba3b6
Make `define-function' accept docstring, as in GNU Emacs.
Mike Sperber <sperber@deinprogramm.de>
parents:
5634
diff
changeset
|
639 } |
|
72c5d36ba3b6
Make `define-function' accept docstring, as in GNU Emacs.
Mike Sperber <sperber@deinprogramm.de>
parents:
5634
diff
changeset
|
640 |
| 428 | 641 fun = Findirect_function (function); |
| 642 | |
| 643 if (SUBRP (fun)) | |
| 644 { | |
| 645 if (XSUBR (fun)->doc == 0) | |
| 646 return Qnil; | |
| 647 if ((EMACS_INT) XSUBR (fun)->doc >= 0) | |
|
4953
304aebb79cd3
function renamings to track names of char typedefs
Ben Wing <ben@xemacs.org>
parents:
4952
diff
changeset
|
648 doc = build_cistring (XSUBR (fun)->doc); |
| 428 | 649 else |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5402
diff
changeset
|
650 doc = get_doc_string (make_fixnum (- (EMACS_INT) XSUBR (fun)->doc)); |
| 428 | 651 } |
| 652 else if (COMPILED_FUNCTIONP (fun)) | |
| 653 { | |
| 654 Lisp_Object tem; | |
| 440 | 655 Lisp_Compiled_Function *f = XCOMPILED_FUNCTION (fun); |
| 428 | 656 if (! (f->flags.documentationp)) |
| 657 return Qnil; | |
| 658 tem = compiled_function_documentation (f); | |
| 659 if (STRINGP (tem)) | |
| 660 doc = tem; | |
| 661 else if (NATNUMP (tem) || CONSP (tem)) | |
|
5206
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
662 { |
|
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
663 doc = get_doc_string (tem); |
|
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
664 /* We may have zero length strings in the docfile for file |
|
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
665 information. */ |
|
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
666 if (STRINGP (doc) && 0 == XSTRING_LENGTH (doc)) |
|
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
667 { |
|
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
668 return Qnil; |
|
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
669 } |
|
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
670 } |
| 428 | 671 else |
| 672 return Qnil; | |
| 673 } | |
| 674 else if (KEYMAPP (fun)) | |
| 771 | 675 return build_msg_string ("Prefix command (definition is a keymap of subcommands)."); |
| 428 | 676 else if (STRINGP (fun) || VECTORP (fun)) |
| 771 | 677 return build_msg_string ("Keyboard macro."); |
| 428 | 678 else if (CONSP (fun)) |
| 679 { | |
| 680 Lisp_Object funcar = Fcar (fun); | |
| 681 | |
| 682 if (!SYMBOLP (funcar)) | |
| 683 return Fsignal (Qinvalid_function, list1 (fun)); | |
| 684 else if (EQ (funcar, Qlambda) | |
| 685 || EQ (funcar, Qautoload)) | |
| 686 { | |
| 687 Lisp_Object tem, tem1; | |
| 688 tem1 = Fcdr (Fcdr (fun)); | |
| 689 tem = Fcar (tem1); | |
| 690 if (STRINGP (tem)) | |
| 691 doc = tem; | |
| 692 /* Handle a doc reference--but these never come last | |
| 693 in the function body, so reject them if they are last. */ | |
| 694 else if ((NATNUMP (tem) || CONSP (tem)) | |
| 695 && ! NILP (XCDR (tem1))) | |
| 696 doc = get_doc_string (tem); | |
| 697 else | |
| 698 return Qnil; | |
| 699 } | |
| 700 else if (EQ (funcar, Qmacro)) | |
| 701 return Fdocumentation (Fcdr (fun), raw); | |
| 702 else | |
| 703 goto oops; | |
| 704 } | |
| 705 else | |
| 706 { | |
| 707 oops: | |
| 708 return Fsignal (Qinvalid_function, list1 (fun)); | |
| 709 } | |
| 710 | |
| 711 if (NILP (raw)) | |
| 712 { | |
| 713 struct gcpro gcpro1; | |
| 714 #ifdef I18N3 | |
| 715 Lisp_Object domain = Qnil; | |
| 716 if (COMPILED_FUNCTIONP (fun)) | |
| 717 domain = compiled_function_domain (XCOMPILED_FUNCTION (fun)); | |
| 718 if (NILP (domain)) | |
| 719 doc = Fgettext (doc); | |
| 720 else | |
| 721 doc = Fdgettext (domain, doc); | |
| 722 #endif | |
| 723 | |
| 724 GCPRO1 (doc); | |
| 725 doc = Fsubstitute_command_keys (doc); | |
| 726 UNGCPRO; | |
| 727 } | |
| 728 return doc; | |
| 729 } | |
| 730 | |
| 731 | |
| 732 DEFUN ("Snarf-documentation", Fsnarf_documentation, 1, 1, 0, /* | |
| 733 Used during Emacs initialization, before dumping runnable Emacs, | |
| 734 to find pointers to doc strings stored in `.../lib-src/DOC' and | |
| 735 record them in function definitions. | |
| 736 One arg, FILENAME, a string which does not include a directory. | |
| 737 The file is written to `../lib-src', and later found in `exec-directory' | |
| 738 when doc strings are referred to in the dumped Emacs. | |
| 739 */ | |
| 740 (filename)) | |
| 741 { | |
| 742 int fd; | |
| 867 | 743 Ibyte buf[1024 + 1]; |
| 428 | 744 REGISTER int filled; |
| 745 REGISTER int pos; | |
| 867 | 746 REGISTER Ibyte *p, *end; |
| 428 | 747 Lisp_Object sym, fun, tem; |
| 867 | 748 Ibyte *name; |
| 428 | 749 |
| 814 | 750 /* This function should not pass the data it's reading through a coding |
| 751 stream. The reason is that the only purpose of this function is to | |
| 752 find the file offsets for the documentation of the various functions, | |
| 753 not do anything with the documentation itself. If we pass through a | |
| 754 coding stream, the pointers will get messed up when we start reading | |
| 755 ISO 2022 data because our pointers will reflect internal format, not | |
| 756 external format. */ | |
| 757 | |
| 428 | 758 if (!purify_flag) |
| 563 | 759 invalid_operation ("Snarf-documentation can only be called in an undumped Emacs", Qunbound); |
| 428 | 760 |
| 761 CHECK_STRING (filename); | |
| 762 | |
| 1330 | 763 { |
| 764 name = alloca_ibytes (XSTRING_LENGTH (filename) + 14); | |
| 2367 | 765 qxestrcpy_ascii (name, "../lib-src/"); |
| 1330 | 766 } |
| 428 | 767 |
| 771 | 768 qxestrcat (name, XSTRING_DATA (filename)); |
| 428 | 769 |
| 771 | 770 fd = qxe_open (name, O_RDONLY | OPEN_BINARY, 0); |
| 428 | 771 if (fd < 0) |
|
4953
304aebb79cd3
function renamings to track names of char typedefs
Ben Wing <ben@xemacs.org>
parents:
4952
diff
changeset
|
772 report_file_error ("Opening doc string file", build_istring (name)); |
| 428 | 773 Vinternal_doc_file_name = filename; |
| 774 filled = 0; | |
| 775 pos = 0; | |
| 776 while (1) | |
| 777 { | |
| 778 if (filled < 512) | |
| 771 | 779 filled += retry_read (fd, &buf[filled], sizeof (buf) - 1 - filled); |
| 428 | 780 if (!filled) |
| 781 break; | |
| 782 | |
| 783 buf[filled] = 0; | |
| 784 p = buf; | |
| 785 end = buf + (filled < 512 ? filled : filled - 128); | |
| 786 while (p != end && *p != '\037') p++; | |
| 787 /* p points to ^_Ffunctionname\n or ^_Vvarname\n. */ | |
| 788 if (p != end) | |
| 789 { | |
| 771 | 790 end = qxestrchr (p, '\n'); |
| 3548 | 791 /* If you trigger a failure with this assertion, you probably |
| 792 configured with --quick-build and need to rebuild your DOC | |
| 3545 | 793 file. */ |
| 794 assert((end - p - 2) > -1); | |
| 771 | 795 sym = oblookup (Vobarray, p + 2, end - p - 2); |
| 428 | 796 if (SYMBOLP (sym)) |
| 797 { | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5402
diff
changeset
|
798 Lisp_Object offset = make_fixnum (pos + end + 1 - buf); |
| 428 | 799 /* Attach a docstring to a variable */ |
| 800 if (p[1] == 'V') | |
| 801 { | |
| 802 /* Install file-position as variable-documentation property | |
| 803 and make it negative for a user-variable | |
| 804 (doc starts with a `*'). */ | |
| 805 Lisp_Object old = Fget (sym, Qvariable_documentation, Qzero); | |
| 806 if (!ZEROP (old)) | |
| 807 { | |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4539
diff
changeset
|
808 weird_doc (sym, "duplicate", |
|
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4539
diff
changeset
|
809 "variable", pos); |
| 428 | 810 /* In the case of duplicate doc file entries, always |
| 811 take the later one. But if the doc is not an int | |
| 812 (a string, say) leave it alone. */ | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5402
diff
changeset
|
813 if (!FIXNUMP (old)) |
| 428 | 814 goto weird; |
| 815 } | |
| 816 Fput (sym, Qvariable_documentation, | |
| 817 ((end[1] == '*') | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5402
diff
changeset
|
818 ? make_fixnum (- XFIXNUM (offset)) |
| 428 | 819 : offset)); |
| 820 } | |
| 821 /* Attach a docstring to a function. | |
| 822 The type determines where the docstring is stored. */ | |
| 823 else if (p[1] == 'F') | |
| 824 { | |
| 825 fun = indirect_function (sym,0); | |
| 826 | |
| 827 if (CONSP (fun) && EQ (XCAR (fun), Qmacro)) | |
| 828 fun = XCDR (fun); | |
| 829 | |
| 830 if (UNBOUNDP (fun)) | |
| 831 { | |
| 771 | 832 #if 0 /* There are lots of legitimate cases where this message will appear |
| 833 (e.g. any function that's only defined when MULE is defined, | |
| 834 provided that the function is used somewhere in a dumped Lisp | |
| 835 file, so that the symbol is interned in the dumped XEmacs), and | |
| 836 there's not a lot that can be done to eliminate the warning other | |
| 837 than kludges like moving the function to a Mule-only source file, | |
| 838 which often results in ugly code. Furthermore, the only point of | |
| 839 this warning is to warn you when you have a DEFUN that you forget | |
| 840 to DEFSUBR, but the compiler will also warn you, because the DEFUN | |
| 841 declares a static object, and the object will be unused -- you'll | |
| 842 get something like | |
| 843 | |
| 844 /src/xemacs/mule/src/abbrev.c:269: warning: `SFexpand_abbrev' defined but not used | |
| 845 | |
| 846 So I'm disabling this. --ben */ | |
| 847 | |
| 428 | 848 /* May have been #if'ed out or something */ |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4539
diff
changeset
|
849 weird_doc (sym, "not fboundp", |
|
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4539
diff
changeset
|
850 "function", pos); |
| 771 | 851 #endif |
| 428 | 852 goto weird; |
| 853 } | |
| 854 else if (SUBRP (fun)) | |
| 855 { | |
| 856 /* Lisp_Subrs have a slot for it. */ | |
| 857 if (XSUBR (fun)->doc) | |
| 858 { | |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4539
diff
changeset
|
859 weird_doc (sym, "duplicate", |
|
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4539
diff
changeset
|
860 "subr", pos); |
| 428 | 861 goto weird; |
| 862 } | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5402
diff
changeset
|
863 XSUBR (fun)->doc = (char *) (- XFIXNUM (offset)); |
| 428 | 864 } |
| 865 else if (CONSP (fun)) | |
| 866 { | |
| 867 /* If it's a lisp form, stick it in the form. */ | |
| 868 tem = XCAR (fun); | |
| 869 if (EQ (tem, Qlambda) || EQ (tem, Qautoload)) | |
| 870 { | |
| 871 tem = Fcdr (Fcdr (fun)); | |
| 872 if (CONSP (tem) && | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5402
diff
changeset
|
873 FIXNUMP (XCAR (tem))) |
| 428 | 874 { |
| 875 Lisp_Object old = XCAR (tem); | |
| 876 if (!ZEROP (old)) | |
| 877 { | |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4539
diff
changeset
|
878 if (EQ (tem, Qlambda)) |
|
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4539
diff
changeset
|
879 weird_doc (sym, "duplicate", "lambda", |
|
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4539
diff
changeset
|
880 pos); |
|
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4539
diff
changeset
|
881 else |
|
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4539
diff
changeset
|
882 weird_doc (sym, "duplicate", "autoload", |
|
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4539
diff
changeset
|
883 pos); |
| 428 | 884 /* In the case of duplicate doc file entries, |
| 885 always take the later one. But if the doc | |
| 886 is not an int (a string, say) leave it | |
| 887 alone. */ | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5402
diff
changeset
|
888 if (!FIXNUMP (old)) |
| 428 | 889 goto weird; |
| 890 } | |
| 891 XCAR (tem) = offset; | |
| 892 } | |
| 893 else if (!CONSP (tem)) | |
| 894 { | |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4539
diff
changeset
|
895 weird_doc (sym, "!CONSP(tem)", "function", pos); |
| 428 | 896 goto cont; |
| 897 } | |
| 898 else | |
| 899 { | |
| 900 /* DOC string is a string not integer 0 */ | |
| 901 #if 0 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5402
diff
changeset
|
902 weird_doc (sym, "!FIXNUMP(XCAR(tem))", |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4539
diff
changeset
|
903 "function", pos); |
| 428 | 904 #endif |
| 905 goto cont; | |
| 906 } | |
| 907 } | |
| 908 else | |
| 909 { | |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4539
diff
changeset
|
910 weird_doc (sym, "not lambda or autoload", |
|
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4539
diff
changeset
|
911 "function", pos); |
| 428 | 912 goto cont; |
| 913 } | |
| 914 } | |
| 915 else if (COMPILED_FUNCTIONP (fun)) | |
| 916 { | |
| 917 /* Compiled-Function objects sometimes have | |
| 918 slots for it. */ | |
| 440 | 919 Lisp_Compiled_Function *f = XCOMPILED_FUNCTION (fun); |
| 428 | 920 |
|
5206
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
921 /* If there were multiple definitions for this function, |
|
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
922 and the latter one didn't |
|
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
923 have any doc, warn and don't blow up. */ |
|
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
924 Lisp_Object old = |
|
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
925 compiled_function_documentation (f); |
|
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
926 if (!ZEROP (old) && !NILP (old)) |
|
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
927 { |
|
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
928 weird_doc (sym, "duplicate", "bytecode", pos); |
|
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
929 /* In the case of duplicate doc file entries, |
|
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
930 always take the later one. But if the doc is |
|
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
931 not an int (a string, say) leave it alone. */ |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5402
diff
changeset
|
932 if (!FIXNUMP (old)) |
|
5206
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
933 goto weird; |
|
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
934 } |
| 428 | 935 |
|
5206
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
936 /* This may be a function or variable where we want |
|
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
937 to make the file name available. */ |
|
39d74978fd32
Keep around file info for dumped functions and variables without docstrings.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4976
diff
changeset
|
938 set_compiled_function_documentation (f, offset); |
| 428 | 939 } |
| 940 else | |
| 941 { | |
| 942 /* Otherwise the function is undefined or | |
| 943 otherwise weird. Ignore it. */ | |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4539
diff
changeset
|
944 weird_doc (sym, "weird function", "function", pos); |
| 428 | 945 goto weird; |
| 946 } | |
| 947 } | |
| 948 else | |
| 949 { | |
| 950 /* lose: */ | |
| 771 | 951 signal_error (Qfile_error, "DOC file invalid at position", |
|
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56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5402
diff
changeset
|
952 make_fixnum (pos)); |
| 428 | 953 weird: |
| 954 /* goto lose */; | |
| 955 } | |
| 956 } | |
| 957 } | |
| 958 cont: | |
| 959 pos += end - buf; | |
| 960 filled -= end - buf; | |
| 961 memmove (buf, end, filled); | |
| 962 } | |
| 771 | 963 retry_close (fd); |
| 428 | 964 return Qnil; |
| 965 } | |
| 966 | |
| 967 #if 1 /* Don't warn about functions whose doc was lost because they were | |
| 968 wrapped by advice-freeze.el... */ | |
| 969 static int | |
| 970 kludgily_ignore_lost_doc_p (Lisp_Object sym) | |
| 971 { | |
| 972 # define kludge_prefix "ad-Orig-" | |
| 793 | 973 Lisp_Object name = XSYMBOL (sym)->name; |
| 974 return (XSTRING_LENGTH (name) > (Bytecount) (sizeof (kludge_prefix)) && | |
| 2367 | 975 !qxestrncmp_ascii (XSTRING_DATA (name), kludge_prefix, |
| 793 | 976 sizeof (kludge_prefix) - 1)); |
| 428 | 977 # undef kludge_prefix |
| 978 } | |
| 979 #else | |
| 980 # define kludgily_ignore_lost_doc_p(sym) 0 | |
| 981 #endif | |
| 982 | |
| 983 | |
| 984 static int | |
|
5634
2014ff433daf
Support hash COLLECTIONs, #'{all,try}-completion{s,}; add #'test-completion
Aidan Kehoe <kehoea@parhasard.net>
parents:
5596
diff
changeset
|
985 verify_doc_mapper (Lisp_Object UNUSED (key), Lisp_Object sym, void *arg) |
| 428 | 986 { |
| 793 | 987 Lisp_Object closure = * (Lisp_Object *) arg; |
| 428 | 988 |
| 989 if (!NILP (Ffboundp (sym))) | |
| 990 { | |
| 991 int doc = 0; | |
| 992 Lisp_Object fun = XSYMBOL (sym)->function; | |
| 993 if (CONSP (fun) && | |
| 994 EQ (XCAR (fun), Qmacro)) | |
| 995 fun = XCDR (fun); | |
| 996 | |
| 997 if (SUBRP (fun)) | |
| 998 doc = (EMACS_INT) XSUBR (fun)->doc; | |
| 999 else if (SYMBOLP (fun)) | |
| 1000 doc = -1; | |
| 1001 else if (KEYMAPP (fun)) | |
| 1002 doc = -1; | |
| 1003 else if (CONSP (fun)) | |
| 1004 { | |
| 1005 Lisp_Object tem = XCAR (fun); | |
| 1006 if (EQ (tem, Qlambda) || EQ (tem, Qautoload)) | |
| 1007 { | |
| 1008 doc = -1; | |
| 1009 tem = Fcdr (Fcdr (fun)); | |
| 1010 if (CONSP (tem) && | |
|
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Aidan Kehoe <kehoea@parhasard.net>
parents:
5402
diff
changeset
|
1011 FIXNUMP (XCAR (tem))) |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5402
diff
changeset
|
1012 doc = XFIXNUM (XCAR (tem)); |
| 428 | 1013 } |
| 1014 } | |
| 1015 else if (COMPILED_FUNCTIONP (fun)) | |
| 1016 { | |
| 440 | 1017 Lisp_Compiled_Function *f = XCOMPILED_FUNCTION (fun); |
| 428 | 1018 if (! (f->flags.documentationp)) |
| 1019 doc = -1; | |
| 1020 else | |
| 1021 { | |
| 1022 Lisp_Object tem = compiled_function_documentation (f); | |
|
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Aidan Kehoe <kehoea@parhasard.net>
parents:
5402
diff
changeset
|
1023 if (FIXNUMP (tem)) |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5402
diff
changeset
|
1024 doc = XFIXNUM (tem); |
| 428 | 1025 } |
| 1026 } | |
| 1027 | |
| 1028 if (doc == 0 && !kludgily_ignore_lost_doc_p (sym)) | |
| 1029 { | |
| 1030 message ("Warning: doc lost for function %s.", | |
| 793 | 1031 XSTRING_DATA (XSYMBOL (sym)->name)); |
| 428 | 1032 XCDR (closure) = Qt; |
| 1033 } | |
| 1034 } | |
| 1035 if (!NILP (Fboundp (sym))) | |
| 1036 { | |
| 1037 Lisp_Object doc = Fget (sym, Qvariable_documentation, Qnil); | |
| 1038 if (ZEROP (doc)) | |
| 1039 { | |
| 1040 message ("Warning: doc lost for variable %s.", | |
| 793 | 1041 XSTRING_DATA (XSYMBOL (sym)->name)); |
| 428 | 1042 XCDR (closure) = Qt; |
| 1043 } | |
| 1044 } | |
| 1045 return 0; /* Never stop */ | |
| 1046 } | |
| 1047 | |
| 1048 DEFUN ("Verify-documentation", Fverify_documentation, 0, 0, 0, /* | |
| 1049 Used to make sure everything went well with Snarf-documentation. | |
| 1050 Writes to stderr if not. | |
| 1051 */ | |
| 1052 ()) | |
| 1053 { | |
| 1054 Lisp_Object closure = Fcons (Qnil, Qnil); | |
| 1055 struct gcpro gcpro1; | |
| 1056 GCPRO1 (closure); | |
| 1057 map_obarray (Vobarray, verify_doc_mapper, &closure); | |
| 1058 if (!NILP (Fcdr (closure))) | |
| 1059 message ("\n" | |
| 1060 "This is usually because some files were preloaded by loaddefs.el or\n" | |
| 1061 "site-load.el, but were not passed to make-docfile by Makefile.\n"); | |
| 1062 UNGCPRO; | |
| 1063 return NILP (Fcdr (closure)) ? Qt : Qnil; | |
| 1064 } | |
| 1065 | |
| 1066 | |
| 1067 DEFUN ("substitute-command-keys", Fsubstitute_command_keys, 1, 1, 0, /* | |
| 1068 Substitute key descriptions for command names in STRING. | |
| 1069 Return a new string which is STRING with substrings of the form \\=\\[COMMAND] | |
| 1070 replaced by either: a keystroke sequence that will invoke COMMAND, | |
| 1071 or "M-x COMMAND" if COMMAND is not on any keys. | |
| 1072 Substrings of the form \\=\\{MAPVAR} are replaced by summaries | |
| 444 | 1073 \(made by `describe-bindings') of the value of MAPVAR, taken as a keymap. |
| 428 | 1074 Substrings of the form \\=\\<MAPVAR> specify to use the value of MAPVAR |
| 1075 as the keymap for future \\=\\[COMMAND] substrings. | |
| 1076 \\=\\= quotes the following character and is discarded; | |
| 1077 thus, \\=\\=\\=\\= puts \\=\\= into the output, and \\=\\=\\=\\[ puts \\=\\[ into the output. | |
| 1078 */ | |
| 444 | 1079 (string)) |
| 428 | 1080 { |
| 1081 /* This function can GC */ | |
| 867 | 1082 Ibyte *buf; |
| 428 | 1083 int changed = 0; |
| 867 | 1084 REGISTER Ibyte *strdata; |
| 1085 REGISTER Ibyte *bufp; | |
| 428 | 1086 Bytecount strlength; |
| 1087 Bytecount idx; | |
| 1088 Bytecount bsize; | |
| 3025 | 1089 Ibyte *new_; |
| 444 | 1090 Lisp_Object tem = Qnil; |
| 1091 Lisp_Object keymap = Qnil; | |
| 1092 Lisp_Object name = Qnil; | |
| 867 | 1093 Ibyte *start; |
| 428 | 1094 Bytecount length; |
| 1095 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
| 1096 | |
| 444 | 1097 if (NILP (string)) |
| 428 | 1098 return Qnil; |
| 1099 | |
| 444 | 1100 CHECK_STRING (string); |
| 1101 GCPRO4 (string, tem, keymap, name); | |
| 428 | 1102 |
| 1103 /* There is the possibility that the string is not destined for a | |
| 1104 translating stream, and it could be argued that we should do the | |
| 1105 same thing here as in Fformat(), but there are very few times | |
| 1106 when this will be the case and many calls to this function | |
| 1107 would have to have `gettext' calls added. (I18N3) */ | |
| 444 | 1108 string = LISP_GETTEXT (string); |
| 428 | 1109 |
| 1110 /* KEYMAP is either nil (which means search all the active keymaps) | |
| 1111 or a specified local map (which means search just that and the | |
| 1112 global map). If non-nil, it might come from Voverriding_local_map, | |
| 444 | 1113 or from a \\<mapname> construct in STRING itself.. */ |
| 428 | 1114 #if 0 /* FSFmacs */ |
| 1115 /* This is really weird and garbagey. If keymap is nil and there's | |
| 1116 an overriding-local-map, `where-is-internal' will correctly note | |
| 1117 this, so there's no reason to do it here. Maybe FSFmacs | |
| 1118 `where-is-internal' is broken. */ | |
| 1119 /* | |
| 1120 keymap = current_kboard->Voverriding_terminal_local_map; | |
| 1121 if (NILP (keymap)) | |
| 1122 keymap = Voverriding_local_map; | |
| 1123 */ | |
| 1124 #endif | |
| 1125 | |
| 444 | 1126 strlength = XSTRING_LENGTH (string); |
| 2367 | 1127 bsize = ITEXT_ZTERM_SIZE + strlength; |
| 1128 buf = xnew_ibytes (bsize); | |
| 428 | 1129 bufp = buf; |
| 1130 | |
| 1131 /* Have to reset strdata every time GC might be called */ | |
| 444 | 1132 strdata = XSTRING_DATA (string); |
| 428 | 1133 for (idx = 0; idx < strlength; ) |
| 1134 { | |
| 867 | 1135 Ibyte *strp = strdata + idx; |
| 428 | 1136 |
| 1137 if (strp[0] != '\\') | |
| 1138 { | |
| 1139 /* just copy other chars */ | |
| 1140 /* As it happens, this will work with Mule even if the | |
| 1141 character quoted is multi-byte; the remaining multi-byte | |
| 1142 characters will just be copied by this loop. */ | |
| 1143 *bufp++ = *strp; | |
| 1144 idx++; | |
| 1145 } | |
| 1146 else switch (strp[1]) | |
| 1147 { | |
| 1148 default: | |
| 1149 { | |
| 1150 /* just copy unknown escape sequences */ | |
| 1151 *bufp++ = *strp; | |
| 1152 idx++; | |
| 1153 break; | |
| 1154 } | |
| 1155 case '=': | |
| 1156 { | |
| 1157 /* \= quotes the next character; | |
| 1158 thus, to put in \[ without its special meaning, use \=\[. */ | |
| 1159 /* As it happens, this will work with Mule even if the | |
| 1160 character quoted is multi-byte; the remaining multi-byte | |
| 1161 characters will just be copied by this loop. */ | |
| 1162 changed = 1; | |
| 1163 *bufp++ = strp[2]; | |
| 1164 idx += 3; | |
| 1165 break; | |
| 1166 } | |
| 1167 case '[': | |
| 1168 { | |
| 1169 changed = 1; | |
| 1170 idx += 2; /* skip \[ */ | |
| 1171 strp += 2; | |
| 1172 start = strp; | |
| 1173 | |
| 1174 while ((idx < strlength) | |
| 1175 && *strp != ']') | |
| 1176 { | |
| 1177 strp++; | |
| 1178 idx++; | |
| 1179 } | |
| 1180 length = strp - start; | |
| 1181 idx++; /* skip ] */ | |
| 1182 | |
| 1183 tem = Fintern (make_string (start, length), Qnil); | |
| 1184 tem = Fwhere_is_internal (tem, keymap, Qt, Qnil, Qnil); | |
| 1185 | |
| 1186 #if 0 /* FSFmacs */ | |
| 444 | 1187 /* Disregard menu bar bindings; it is positively annoying to |
| 1188 mention them when there's no menu bar, and it isn't terribly | |
| 1189 useful even when there is a menu bar. */ | |
| 1190 if (!NILP (tem)) | |
| 1191 { | |
| 1192 firstkey = Faref (tem, Qzero); | |
| 1193 if (EQ (firstkey, Qmenu_bar)) | |
| 1194 tem = Qnil; | |
| 1195 } | |
| 428 | 1196 #endif |
| 1197 | |
| 1198 if (NILP (tem)) /* but not on any keys */ | |
| 1199 { | |
| 3025 | 1200 new_ = (Ibyte *) xrealloc (buf, bsize += 4); |
| 1201 bufp += new_ - buf; | |
| 1202 buf = new_; | |
| 428 | 1203 memcpy (bufp, "M-x ", 4); |
| 1204 bufp += 4; | |
| 1205 goto subst; | |
| 1206 } | |
| 1207 else | |
| 1208 { /* function is on a key */ | |
| 1209 tem = Fkey_description (tem); | |
| 1210 goto subst_string; | |
| 1211 } | |
| 1212 } | |
| 1213 case '{': | |
| 1214 case '<': | |
| 1215 { | |
| 444 | 1216 Lisp_Object buffer = Fget_buffer_create (QSsubstitute); |
| 1217 struct buffer *buf_ = XBUFFER (buffer); | |
| 428 | 1218 |
| 1219 Fbuffer_disable_undo (buffer); | |
| 1220 Ferase_buffer (buffer); | |
| 1221 | |
| 1222 /* \{foo} is replaced with a summary of keymap (symbol-value foo). | |
| 1223 \<foo> just sets the keymap used for \[cmd]. */ | |
| 1224 changed = 1; | |
| 1225 idx += 2; /* skip \{ or \< */ | |
| 1226 strp += 2; | |
| 1227 start = strp; | |
| 1228 | |
| 1229 while ((idx < strlength) | |
| 1230 && *strp != '}' && *strp != '>') | |
| 1231 { | |
| 1232 strp++; | |
| 1233 idx++; | |
| 1234 } | |
| 1235 length = strp - start; | |
| 1236 idx++; /* skip } or > */ | |
| 1237 | |
| 1238 /* Get the value of the keymap in TEM, or nil if undefined. | |
| 1239 Do this while still in the user's current buffer | |
| 1240 in case it is a local variable. */ | |
| 1241 name = Fintern (make_string (start, length), Qnil); | |
| 1242 tem = Fboundp (name); | |
| 1243 if (! NILP (tem)) | |
| 1244 { | |
| 1245 tem = Fsymbol_value (name); | |
| 1246 if (! NILP (tem)) | |
| 1247 tem = get_keymap (tem, 0, 1); | |
| 1248 } | |
| 1249 | |
| 1250 if (NILP (tem)) | |
| 1251 { | |
|
4953
304aebb79cd3
function renamings to track names of char typedefs
Ben Wing <ben@xemacs.org>
parents:
4952
diff
changeset
|
1252 buffer_insert_ascstring (buf_, "(uses keymap \""); |
| 444 | 1253 buffer_insert_lisp_string (buf_, Fsymbol_name (name)); |
|
4953
304aebb79cd3
function renamings to track names of char typedefs
Ben Wing <ben@xemacs.org>
parents:
4952
diff
changeset
|
1254 buffer_insert_ascstring (buf_, "\", which is not currently defined) "); |
| 428 | 1255 |
| 1256 if (start[-1] == '<') keymap = Qnil; | |
| 1257 } | |
| 1258 else if (start[-1] == '<') | |
| 1259 keymap = tem; | |
| 1260 else | |
| 1261 describe_map_tree (tem, 1, Qnil, Qnil, 0, buffer); | |
| 1262 | |
| 1263 tem = make_string_from_buffer (buf_, BUF_BEG (buf_), | |
| 1264 BUF_Z (buf_) - BUF_BEG (buf_)); | |
| 1265 Ferase_buffer (buffer); | |
| 444 | 1266 } |
| 1267 goto subst_string; | |
| 428 | 1268 |
| 444 | 1269 subst_string: |
| 1270 start = XSTRING_DATA (tem); | |
| 1271 length = XSTRING_LENGTH (tem); | |
| 1272 subst: | |
| 1273 bsize += length; | |
| 3025 | 1274 new_ = (Ibyte *) xrealloc (buf, bsize); |
| 1275 bufp += new_ - buf; | |
| 1276 buf = new_; | |
| 444 | 1277 memcpy (bufp, start, length); |
| 1278 bufp += length; | |
| 428 | 1279 |
| 444 | 1280 /* Reset STRDATA in case gc relocated it. */ |
| 1281 strdata = XSTRING_DATA (string); | |
| 428 | 1282 |
| 444 | 1283 break; |
| 428 | 1284 } |
| 1285 } | |
| 1286 | |
| 1287 if (changed) /* don't bother if nothing substituted */ | |
| 1288 tem = make_string (buf, bufp - buf); | |
| 1289 else | |
| 444 | 1290 tem = string; |
|
4976
16112448d484
Rename xfree(FOO, TYPE) -> xfree(FOO)
Ben Wing <ben@xemacs.org>
parents:
4962
diff
changeset
|
1291 xfree (buf); |
| 428 | 1292 UNGCPRO; |
| 1293 return tem; | |
| 1294 } | |
| 1295 | |
| 1296 | |
| 1297 /************************************************************************/ | |
| 1298 /* initialization */ | |
| 1299 /************************************************************************/ | |
| 1300 | |
| 1301 void | |
| 1302 syms_of_doc (void) | |
| 1303 { | |
| 3368 | 1304 DEFSUBR (Fbuilt_in_symbol_file); |
| 428 | 1305 DEFSUBR (Fdocumentation); |
| 1306 DEFSUBR (Fdocumentation_property); | |
| 1307 DEFSUBR (Fsnarf_documentation); | |
| 1308 DEFSUBR (Fverify_documentation); | |
| 1309 DEFSUBR (Fsubstitute_command_keys); | |
|
4367
69e6352406f0
Handle macros, autoloads correctly in symbol-file. Add an incomplete TYPE arg.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3548
diff
changeset
|
1310 |
|
69e6352406f0
Handle macros, autoloads correctly in symbol-file. Add an incomplete TYPE arg.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3548
diff
changeset
|
1311 DEFSYMBOL (Qdefvar); |
|
5789
72c5d36ba3b6
Make `define-function' accept docstring, as in GNU Emacs.
Mike Sperber <sperber@deinprogramm.de>
parents:
5634
diff
changeset
|
1312 DEFSYMBOL (Qfunction_documentation); |
| 428 | 1313 } |
| 1314 | |
| 1315 void | |
| 1316 vars_of_doc (void) | |
| 1317 { | |
| 1318 DEFVAR_LISP ("internal-doc-file-name", &Vinternal_doc_file_name /* | |
| 1319 Name of file containing documentation strings of built-in symbols. | |
| 1320 */ ); | |
| 1321 Vinternal_doc_file_name = Qnil; | |
| 1322 | |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4539
diff
changeset
|
1323 QSsubstitute = build_ascstring (" *substitute*"); |
| 428 | 1324 staticpro (&QSsubstitute); |
| 1325 } |