Commit | Line | Data |
---|---|---|
078e7b4a | 1 | /* Lisp parsing and input streams. |
0b5538bd TTN |
2 | Copyright (C) 1985, 1986, 1987, 1988, 1989, 1993, 1994, 1995, |
3 | 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, | |
8cabe764 | 4 | 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
078e7b4a JB |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
9ec0b715 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
078e7b4a | 9 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
078e7b4a JB |
12 | |
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
078e7b4a JB |
20 | |
21 | ||
98280b76 | 22 | #include <config.h> |
078e7b4a JB |
23 | #include <stdio.h> |
24 | #include <sys/types.h> | |
25 | #include <sys/stat.h> | |
26 | #include <sys/file.h> | |
2c1b5dbe | 27 | #include <errno.h> |
b3e6f69c | 28 | #include <setjmp.h> |
078e7b4a | 29 | #include "lisp.h" |
95384e1e | 30 | #include "intervals.h" |
078e7b4a | 31 | #include "buffer.h" |
1571601b | 32 | #include "character.h" |
fe0e03f3 | 33 | #include "charset.h" |
8792be66 | 34 | #include "coding.h" |
57bda87a | 35 | #include <epaths.h> |
078e7b4a | 36 | #include "commands.h" |
e37c0805 | 37 | #include "keyboard.h" |
428a555e | 38 | #include "frame.h" |
7bd279cd | 39 | #include "termhooks.h" |
eb191db2 | 40 | #include "coding.h" |
66cd0949 | 41 | #include "blockinput.h" |
078e7b4a | 42 | |
79051982 RS |
43 | #ifdef MSDOS |
44 | #if __DJGPP__ < 2 | |
45 | #include <unistd.h> /* to get X_OK */ | |
46 | #endif | |
47 | #include "msdos.h" | |
48 | #endif | |
49 | ||
c1a2f60a AS |
50 | #ifdef HAVE_UNISTD_H |
51 | #include <unistd.h> | |
52 | #endif | |
53 | ||
078e7b4a JB |
54 | #ifndef X_OK |
55 | #define X_OK 01 | |
56 | #endif | |
57 | ||
078e7b4a | 58 | #include <math.h> |
078e7b4a | 59 | |
c011e9a5 RS |
60 | #ifdef HAVE_SETLOCALE |
61 | #include <locale.h> | |
62 | #endif /* HAVE_SETLOCALE */ | |
63 | ||
bcdec28b DL |
64 | #ifdef HAVE_FCNTL_H |
65 | #include <fcntl.h> | |
66 | #endif | |
f7d279f0 RS |
67 | #ifndef O_RDONLY |
68 | #define O_RDONLY 0 | |
69 | #endif | |
70 | ||
79cf851c | 71 | #ifdef HAVE_FSEEKO |
68c45bf0 PE |
72 | #define file_offset off_t |
73 | #define file_tell ftello | |
74 | #else | |
75 | #define file_offset long | |
76 | #define file_tell ftell | |
77 | #endif | |
78 | ||
03695ace | 79 | #ifndef USE_CRT_DLL |
2c1b5dbe | 80 | extern int errno; |
03695ace | 81 | #endif |
2c1b5dbe | 82 | |
8a1f1537 | 83 | Lisp_Object Qread_char, Qget_file_char, Qstandard_input, Qcurrent_load_list; |
078e7b4a | 84 | Lisp_Object Qvariable_documentation, Vvalues, Vstandard_input, Vafter_load_alist; |
20ea2964 | 85 | Lisp_Object Qascii_character, Qload, Qload_file_name; |
2b6cae0c | 86 | Lisp_Object Qbackquote, Qcomma, Qcomma_at, Qcomma_dot, Qfunction; |
74549846 | 87 | Lisp_Object Qinhibit_file_name_operation; |
3f39f996 | 88 | Lisp_Object Qeval_buffer_list, Veval_buffer_list; |
6bb6da3e | 89 | Lisp_Object Qfile_truename, Qdo_after_load_evaluation; /* ACM 2006/5/16 */ |
7bd279cd | 90 | |
8792be66 KH |
91 | /* Used instead of Qget_file_char while loading *.elc files compiled |
92 | by Emacs 21 or older. */ | |
93 | static Lisp_Object Qget_emacs_mule_file_char; | |
94 | ||
95 | static Lisp_Object Qload_force_doc_strings; | |
96 | ||
7bd279cd | 97 | extern Lisp_Object Qevent_symbol_element_mask; |
74549846 | 98 | extern Lisp_Object Qfile_exists_p; |
078e7b4a | 99 | |
e0f24100 | 100 | /* non-zero if inside `load' */ |
078e7b4a JB |
101 | int load_in_progress; |
102 | ||
1521a8fa RS |
103 | /* Directory in which the sources were found. */ |
104 | Lisp_Object Vsource_directory; | |
105 | ||
e61b9b87 | 106 | /* Search path and suffixes for files to be loaded. */ |
971a4293 | 107 | Lisp_Object Vload_path, Vload_suffixes, Vload_file_rep_suffixes; |
078e7b4a | 108 | |
4116ab9f KH |
109 | /* File name of user's init file. */ |
110 | Lisp_Object Vuser_init_file; | |
111 | ||
ae321d28 RS |
112 | /* This is the user-visible association list that maps features to |
113 | lists of defs in their load files. */ | |
114 | Lisp_Object Vload_history; | |
115 | ||
20ea2964 | 116 | /* This is used to build the load history. */ |
ae321d28 RS |
117 | Lisp_Object Vcurrent_load_list; |
118 | ||
4b104c41 RS |
119 | /* List of files that were preloaded. */ |
120 | Lisp_Object Vpreloaded_file_list; | |
121 | ||
20ea2964 RS |
122 | /* Name of file actually being read by `load'. */ |
123 | Lisp_Object Vload_file_name; | |
124 | ||
84a15045 RS |
125 | /* Function to use for reading, in `load' and friends. */ |
126 | Lisp_Object Vload_read_function; | |
127 | ||
4ad679f9 EN |
128 | /* The association list of objects read with the #n=object form. |
129 | Each member of the list has the form (n . object), and is used to | |
130 | look up the object for the corresponding #n# construct. | |
131 | It must be set to nil before all top-level calls to read0. */ | |
132 | Lisp_Object read_objects; | |
133 | ||
b2a30870 RS |
134 | /* Nonzero means load should forcibly load all dynamic doc strings. */ |
135 | static int load_force_doc_strings; | |
136 | ||
94e554db RS |
137 | /* Nonzero means read should convert strings to unibyte. */ |
138 | static int load_convert_to_unibyte; | |
139 | ||
8792be66 KH |
140 | /* Nonzero means READCHAR should read bytes one by one (not character) |
141 | when READCHARFUN is Qget_file_char or Qget_emacs_mule_file_char. | |
142 | This is set to 1 by read1 temporarily while handling #@NUMBER. */ | |
143 | static int load_each_byte; | |
144 | ||
9b33a603 | 145 | /* Function to use for loading an Emacs Lisp source file (not |
fe0e03f3 KH |
146 | compiled) instead of readevalloop. */ |
147 | Lisp_Object Vload_source_file_function; | |
148 | ||
1ffcc3b1 DL |
149 | /* List of all DEFVAR_BOOL variables. Used by the byte optimizer. */ |
150 | Lisp_Object Vbyte_boolean_vars; | |
151 | ||
abb13b09 CW |
152 | /* Whether or not to add a `read-positions' property to symbols |
153 | read. */ | |
154 | Lisp_Object Vread_with_symbol_positions; | |
155 | ||
156 | /* List of (SYMBOL . POSITION) accumulated so far. */ | |
157 | Lisp_Object Vread_symbol_positions_list; | |
158 | ||
d2c6be7f RS |
159 | /* List of descriptors now open for Fload. */ |
160 | static Lisp_Object load_descriptor_list; | |
161 | ||
b2a30870 | 162 | /* File for get_file_char to read from. Use by load. */ |
078e7b4a JB |
163 | static FILE *instream; |
164 | ||
165 | /* When nonzero, read conses in pure space */ | |
166 | static int read_pure; | |
167 | ||
b2a30870 | 168 | /* For use within read-from-string (this reader is non-reentrant!!) */ |
078e7b4a | 169 | static int read_from_string_index; |
bed23cb2 | 170 | static int read_from_string_index_byte; |
078e7b4a | 171 | static int read_from_string_limit; |
17634846 | 172 | |
abb13b09 CW |
173 | /* Number of characters read in the current call to Fread or |
174 | Fread_from_string. */ | |
175 | static int readchar_count; | |
6f7f43d5 | 176 | |
c15cfd1f | 177 | /* This contains the last string skipped with #@. */ |
b2a30870 RS |
178 | static char *saved_doc_string; |
179 | /* Length of buffer allocated in saved_doc_string. */ | |
180 | static int saved_doc_string_size; | |
181 | /* Length of actual data in saved_doc_string. */ | |
182 | static int saved_doc_string_length; | |
183 | /* This is the file position that string came from. */ | |
68c45bf0 | 184 | static file_offset saved_doc_string_position; |
b2a30870 | 185 | |
c15cfd1f RS |
186 | /* This contains the previous string skipped with #@. |
187 | We copy it from saved_doc_string when a new string | |
188 | is put in saved_doc_string. */ | |
189 | static char *prev_saved_doc_string; | |
190 | /* Length of buffer allocated in prev_saved_doc_string. */ | |
191 | static int prev_saved_doc_string_size; | |
192 | /* Length of actual data in prev_saved_doc_string. */ | |
193 | static int prev_saved_doc_string_length; | |
194 | /* This is the file position that string came from. */ | |
68c45bf0 | 195 | static file_offset prev_saved_doc_string_position; |
c15cfd1f | 196 | |
17634846 RS |
197 | /* Nonzero means inside a new-style backquote |
198 | with no surrounding parentheses. | |
199 | Fread initializes this to zero, so we need not specbind it | |
200 | or worry about what happens to it when there is an error. */ | |
201 | static int new_backquote_flag; | |
1d064697 | 202 | static Lisp_Object Vold_style_backquotes, Qold_style_backquotes; |
7ee3bd7b GM |
203 | |
204 | /* A list of file names for files being loaded in Fload. Used to | |
205 | check for recursive loads. */ | |
206 | ||
9942fa0c | 207 | static Lisp_Object Vloads_in_progress; |
7ee3bd7b | 208 | |
550a625e GM |
209 | /* Non-zero means load dangerous compiled Lisp files. */ |
210 | ||
211 | int load_dangerous_libraries; | |
212 | ||
213 | /* A regular expression used to detect files compiled with Emacs. */ | |
214 | ||
215 | static Lisp_Object Vbytecomp_version_regexp; | |
216 | ||
8792be66 KH |
217 | static int read_emacs_mule_char P_ ((int, int (*) (int, Lisp_Object), |
218 | Lisp_Object)); | |
219 | ||
11d89e5d | 220 | static void readevalloop P_ ((Lisp_Object, FILE*, Lisp_Object, |
550a625e | 221 | Lisp_Object (*) (), int, |
4c03c46d | 222 | Lisp_Object, Lisp_Object, |
550a625e GM |
223 | Lisp_Object, Lisp_Object)); |
224 | static Lisp_Object load_unwind P_ ((Lisp_Object)); | |
225 | static Lisp_Object load_descriptor_unwind P_ ((Lisp_Object)); | |
226 | ||
336d4a9c | 227 | static void invalid_syntax P_ ((const char *, int)) NO_RETURN; |
2381d38d | 228 | static void end_of_file_error P_ (()) NO_RETURN; |
336d4a9c | 229 | |
078e7b4a | 230 | \f |
8792be66 KH |
231 | /* Functions that read one byte from the current source READCHARFUN |
232 | or unreads one byte. If the integer argument C is -1, it returns | |
233 | one read byte, or -1 when there's no more byte in the source. If C | |
234 | is 0 or positive, it unreads C, and the return value is not | |
235 | interesting. */ | |
236 | ||
237 | static int readbyte_for_lambda P_ ((int, Lisp_Object)); | |
238 | static int readbyte_from_file P_ ((int, Lisp_Object)); | |
239 | static int readbyte_from_string P_ ((int, Lisp_Object)); | |
240 | ||
078e7b4a JB |
241 | /* Handle unreading and rereading of characters. |
242 | Write READCHAR to read a character, | |
fe0e03f3 KH |
243 | UNREAD(c) to unread c to be read again. |
244 | ||
8792be66 | 245 | These macros correctly read/unread multibyte characters. */ |
078e7b4a | 246 | |
1202434b | 247 | #define READCHAR readchar (readcharfun, NULL) |
078e7b4a JB |
248 | #define UNREAD(c) unreadchar (readcharfun, c) |
249 | ||
1202434b KH |
250 | /* Same as READCHAR but set *MULTIBYTE to the multibyteness of the source. */ |
251 | #define READCHAR_REPORT_MULTIBYTE(multibyte) readchar (readcharfun, multibyte) | |
252 | ||
8792be66 | 253 | /* When READCHARFUN is Qget_file_char, Qget_emacs_mule_file_char, |
8f924df7 KH |
254 | Qlambda, or a cons, we use this to keep an unread character because |
255 | a file stream can't handle multibyte-char unreading. The value -1 | |
8792be66 KH |
256 | means that there's no unread character. */ |
257 | static int unread_char; | |
258 | ||
078e7b4a | 259 | static int |
1202434b | 260 | readchar (readcharfun, multibyte) |
078e7b4a | 261 | Lisp_Object readcharfun; |
1202434b | 262 | int *multibyte; |
078e7b4a JB |
263 | { |
264 | Lisp_Object tem; | |
95384e1e | 265 | register int c; |
8792be66 KH |
266 | int (*readbyte) P_ ((int, Lisp_Object)); |
267 | unsigned char buf[MAX_MULTIBYTE_LENGTH]; | |
268 | int i, len; | |
269 | int emacs_mule_encoding = 0; | |
078e7b4a | 270 | |
1202434b KH |
271 | if (multibyte) |
272 | *multibyte = 0; | |
273 | ||
abb13b09 | 274 | readchar_count++; |
177c0ea7 | 275 | |
cfff016d | 276 | if (BUFFERP (readcharfun)) |
078e7b4a | 277 | { |
bed23cb2 | 278 | register struct buffer *inbuffer = XBUFFER (readcharfun); |
078e7b4a | 279 | |
bed23cb2 | 280 | int pt_byte = BUF_PT_BYTE (inbuffer); |
00a9a935 | 281 | |
bed23cb2 RS |
282 | if (pt_byte >= BUF_ZV_BYTE (inbuffer)) |
283 | return -1; | |
078e7b4a | 284 | |
bed23cb2 RS |
285 | if (! NILP (inbuffer->enable_multibyte_characters)) |
286 | { | |
00a9a935 | 287 | /* Fetch the character code from the buffer. */ |
bed23cb2 RS |
288 | unsigned char *p = BUF_BYTE_ADDRESS (inbuffer, pt_byte); |
289 | BUF_INC_POS (inbuffer, pt_byte); | |
290 | c = STRING_CHAR (p, pt_byte - orig_pt_byte); | |
1202434b KH |
291 | if (multibyte) |
292 | *multibyte = 1; | |
bed23cb2 RS |
293 | } |
294 | else | |
295 | { | |
296 | c = BUF_FETCH_BYTE (inbuffer, pt_byte); | |
8792be66 KH |
297 | if (! ASCII_BYTE_P (c)) |
298 | c = BYTE8_TO_CHAR (c); | |
bed23cb2 | 299 | pt_byte++; |
6f7f43d5 | 300 | } |
bed23cb2 | 301 | SET_BUF_PT_BOTH (inbuffer, BUF_PT (inbuffer) + 1, pt_byte); |
6f7f43d5 | 302 | |
bed23cb2 | 303 | return c; |
078e7b4a | 304 | } |
cfff016d | 305 | if (MARKERP (readcharfun)) |
078e7b4a | 306 | { |
bed23cb2 | 307 | register struct buffer *inbuffer = XMARKER (readcharfun)->buffer; |
078e7b4a | 308 | |
bed23cb2 | 309 | int bytepos = marker_byte_position (readcharfun); |
00a9a935 | 310 | |
bed23cb2 RS |
311 | if (bytepos >= BUF_ZV_BYTE (inbuffer)) |
312 | return -1; | |
6f7f43d5 | 313 | |
bed23cb2 RS |
314 | if (! NILP (inbuffer->enable_multibyte_characters)) |
315 | { | |
00a9a935 | 316 | /* Fetch the character code from the buffer. */ |
bed23cb2 RS |
317 | unsigned char *p = BUF_BYTE_ADDRESS (inbuffer, bytepos); |
318 | BUF_INC_POS (inbuffer, bytepos); | |
319 | c = STRING_CHAR (p, bytepos - orig_bytepos); | |
1202434b KH |
320 | if (multibyte) |
321 | *multibyte = 1; | |
bed23cb2 RS |
322 | } |
323 | else | |
324 | { | |
325 | c = BUF_FETCH_BYTE (inbuffer, bytepos); | |
8792be66 KH |
326 | if (! ASCII_BYTE_P (c)) |
327 | c = BYTE8_TO_CHAR (c); | |
bed23cb2 | 328 | bytepos++; |
6f7f43d5 RS |
329 | } |
330 | ||
bed23cb2 RS |
331 | XMARKER (readcharfun)->bytepos = bytepos; |
332 | XMARKER (readcharfun)->charpos++; | |
333 | ||
334 | return c; | |
078e7b4a | 335 | } |
ad0153e4 RS |
336 | |
337 | if (EQ (readcharfun, Qlambda)) | |
8792be66 KH |
338 | { |
339 | readbyte = readbyte_for_lambda; | |
340 | goto read_multibyte; | |
341 | } | |
ad0153e4 | 342 | |
078e7b4a | 343 | if (EQ (readcharfun, Qget_file_char)) |
2c1b5dbe | 344 | { |
8792be66 KH |
345 | readbyte = readbyte_from_file; |
346 | goto read_multibyte; | |
2c1b5dbe | 347 | } |
078e7b4a | 348 | |
cfff016d | 349 | if (STRINGP (readcharfun)) |
078e7b4a | 350 | { |
bed23cb2 | 351 | if (read_from_string_index >= read_from_string_limit) |
078e7b4a | 352 | c = -1; |
1202434b KH |
353 | else if (STRING_MULTIBYTE (readcharfun)) |
354 | { | |
355 | if (multibyte) | |
356 | *multibyte = 1; | |
357 | FETCH_STRING_CHAR_ADVANCE_NO_CHECK (c, readcharfun, | |
358 | read_from_string_index, | |
359 | read_from_string_index_byte); | |
360 | } | |
f0354c03 | 361 | else |
1202434b KH |
362 | { |
363 | c = SREF (readcharfun, read_from_string_index_byte); | |
364 | read_from_string_index++; | |
365 | read_from_string_index_byte++; | |
366 | } | |
078e7b4a JB |
367 | return c; |
368 | } | |
369 | ||
8792be66 KH |
370 | if (CONSP (readcharfun)) |
371 | { | |
372 | /* This is the case that read_vector is reading from a unibyte | |
373 | string that contains a byte sequence previously skipped | |
374 | because of #@NUMBER. The car part of readcharfun is that | |
375 | string, and the cdr part is a value of readcharfun given to | |
376 | read_vector. */ | |
377 | readbyte = readbyte_from_string; | |
378 | if (EQ (XCDR (readcharfun), Qget_emacs_mule_file_char)) | |
379 | emacs_mule_encoding = 1; | |
380 | goto read_multibyte; | |
381 | } | |
8f924df7 | 382 | |
8792be66 KH |
383 | if (EQ (readcharfun, Qget_emacs_mule_file_char)) |
384 | { | |
385 | readbyte = readbyte_from_file; | |
386 | emacs_mule_encoding = 1; | |
387 | goto read_multibyte; | |
388 | } | |
078e7b4a JB |
389 | |
390 | tem = call0 (readcharfun); | |
391 | ||
265a9e55 | 392 | if (NILP (tem)) |
078e7b4a JB |
393 | return -1; |
394 | return XINT (tem); | |
8792be66 KH |
395 | |
396 | read_multibyte: | |
397 | if (unread_char >= 0) | |
398 | { | |
399 | c = unread_char; | |
400 | unread_char = -1; | |
401 | return c; | |
402 | } | |
403 | c = (*readbyte) (-1, readcharfun); | |
1202434b KH |
404 | if (c < 0 || load_each_byte) |
405 | return c; | |
406 | if (multibyte) | |
407 | *multibyte = 1; | |
408 | if (ASCII_BYTE_P (c)) | |
8792be66 KH |
409 | return c; |
410 | if (emacs_mule_encoding) | |
411 | return read_emacs_mule_char (c, readbyte, readcharfun); | |
412 | i = 0; | |
413 | buf[i++] = c; | |
414 | len = BYTES_BY_CHAR_HEAD (c); | |
415 | while (i < len) | |
416 | { | |
417 | c = (*readbyte) (-1, readcharfun); | |
418 | if (c < 0 || ! TRAILING_CODE_P (c)) | |
419 | { | |
420 | while (--i > 1) | |
421 | (*readbyte) (buf[i], readcharfun); | |
422 | return BYTE8_TO_CHAR (buf[0]); | |
423 | } | |
424 | buf[i++] = c; | |
425 | } | |
426 | return STRING_CHAR (buf, i); | |
078e7b4a JB |
427 | } |
428 | ||
429 | /* Unread the character C in the way appropriate for the stream READCHARFUN. | |
430 | If the stream is a user function, call it with the char as argument. */ | |
431 | ||
432 | static void | |
433 | unreadchar (readcharfun, c) | |
434 | Lisp_Object readcharfun; | |
435 | int c; | |
436 | { | |
abb13b09 | 437 | readchar_count--; |
92fddec9 KH |
438 | if (c == -1) |
439 | /* Don't back up the pointer if we're unreading the end-of-input mark, | |
440 | since readchar didn't advance it when we read it. */ | |
441 | ; | |
cfff016d | 442 | else if (BUFFERP (readcharfun)) |
d7760ca9 | 443 | { |
bed23cb2 RS |
444 | struct buffer *b = XBUFFER (readcharfun); |
445 | int bytepos = BUF_PT_BYTE (b); | |
d7760ca9 | 446 | |
8792be66 KH |
447 | BUF_PT (b)--; |
448 | if (! NILP (b->enable_multibyte_characters)) | |
449 | BUF_DEC_POS (b, bytepos); | |
bed23cb2 | 450 | else |
8792be66 | 451 | bytepos--; |
d7760ca9 | 452 | |
8792be66 | 453 | BUF_PT_BYTE (b) = bytepos; |
d7760ca9 | 454 | } |
cfff016d | 455 | else if (MARKERP (readcharfun)) |
d7760ca9 | 456 | { |
bed23cb2 RS |
457 | struct buffer *b = XMARKER (readcharfun)->buffer; |
458 | int bytepos = XMARKER (readcharfun)->bytepos; | |
d7760ca9 | 459 | |
8792be66 KH |
460 | XMARKER (readcharfun)->charpos--; |
461 | if (! NILP (b->enable_multibyte_characters)) | |
462 | BUF_DEC_POS (b, bytepos); | |
bed23cb2 | 463 | else |
8792be66 | 464 | bytepos--; |
d7760ca9 | 465 | |
8792be66 | 466 | XMARKER (readcharfun)->bytepos = bytepos; |
d7760ca9 | 467 | } |
cfff016d | 468 | else if (STRINGP (readcharfun)) |
bed23cb2 RS |
469 | { |
470 | read_from_string_index--; | |
471 | read_from_string_index_byte | |
472 | = string_char_to_byte (readcharfun, read_from_string_index); | |
473 | } | |
8792be66 KH |
474 | else if (CONSP (readcharfun)) |
475 | { | |
476 | unread_char = c; | |
477 | } | |
ad0153e4 | 478 | else if (EQ (readcharfun, Qlambda)) |
8792be66 KH |
479 | { |
480 | unread_char = c; | |
481 | } | |
482 | else if (EQ (readcharfun, Qget_file_char) | |
483 | || EQ (readcharfun, Qget_emacs_mule_file_char)) | |
484 | { | |
485 | if (load_each_byte) | |
d85d3839 MB |
486 | { |
487 | BLOCK_INPUT; | |
488 | ungetc (c, instream); | |
489 | UNBLOCK_INPUT; | |
490 | } | |
8792be66 KH |
491 | else |
492 | unread_char = c; | |
493 | } | |
078e7b4a JB |
494 | else |
495 | call1 (readcharfun, make_number (c)); | |
496 | } | |
497 | ||
8792be66 KH |
498 | static int |
499 | readbyte_for_lambda (c, readcharfun) | |
500 | int c; | |
501 | Lisp_Object readcharfun; | |
502 | { | |
503 | return read_bytecode_char (c >= 0); | |
504 | } | |
505 | ||
506 | ||
507 | static int | |
508 | readbyte_from_file (c, readcharfun) | |
509 | int c; | |
510 | Lisp_Object readcharfun; | |
511 | { | |
512 | if (c >= 0) | |
513 | { | |
66cd0949 | 514 | BLOCK_INPUT; |
8792be66 | 515 | ungetc (c, instream); |
66cd0949 | 516 | UNBLOCK_INPUT; |
8792be66 KH |
517 | return 0; |
518 | } | |
519 | ||
d85d3839 | 520 | BLOCK_INPUT; |
8792be66 | 521 | c = getc (instream); |
d85d3839 | 522 | |
8792be66 | 523 | #ifdef EINTR |
d85d3839 MB |
524 | /* Interrupted reads have been observed while reading over the network */ |
525 | while (c == EOF && ferror (instream) && errno == EINTR) | |
526 | { | |
57cb2e6f | 527 | UNBLOCK_INPUT; |
d85d3839 | 528 | QUIT; |
d85d3839 | 529 | BLOCK_INPUT; |
57cb2e6f | 530 | clearerr (instream); |
d85d3839 | 531 | c = getc (instream); |
66cd0949 | 532 | } |
8792be66 | 533 | #endif |
d85d3839 | 534 | |
57cb2e6f MB |
535 | UNBLOCK_INPUT; |
536 | ||
8792be66 KH |
537 | return (c == EOF ? -1 : c); |
538 | } | |
539 | ||
540 | static int | |
541 | readbyte_from_string (c, readcharfun) | |
542 | int c; | |
543 | Lisp_Object readcharfun; | |
544 | { | |
545 | Lisp_Object string = XCAR (readcharfun); | |
546 | ||
547 | if (c >= 0) | |
548 | { | |
549 | read_from_string_index--; | |
550 | read_from_string_index_byte | |
551 | = string_char_to_byte (string, read_from_string_index); | |
552 | } | |
8f924df7 | 553 | |
8792be66 KH |
554 | if (read_from_string_index >= read_from_string_limit) |
555 | c = -1; | |
556 | else | |
557 | FETCH_STRING_CHAR_ADVANCE (c, string, | |
558 | read_from_string_index, | |
559 | read_from_string_index_byte); | |
560 | return c; | |
561 | } | |
562 | ||
563 | ||
564 | /* Read one non-ASCII character from INSTREAM. The character is | |
565 | encoded in `emacs-mule' and the first byte is already read in | |
566 | C. */ | |
567 | ||
568 | extern char emacs_mule_bytes[256]; | |
569 | ||
570 | static int | |
571 | read_emacs_mule_char (c, readbyte, readcharfun) | |
572 | int c; | |
573 | int (*readbyte) P_ ((int, Lisp_Object)); | |
574 | Lisp_Object readcharfun; | |
575 | { | |
576 | /* Emacs-mule coding uses at most 4-byte for one character. */ | |
577 | unsigned char buf[4]; | |
578 | int len = emacs_mule_bytes[c]; | |
579 | struct charset *charset; | |
580 | int i; | |
581 | unsigned code; | |
582 | ||
583 | if (len == 1) | |
584 | /* C is not a valid leading-code of `emacs-mule'. */ | |
585 | return BYTE8_TO_CHAR (c); | |
586 | ||
587 | i = 0; | |
588 | buf[i++] = c; | |
589 | while (i < len) | |
590 | { | |
591 | c = (*readbyte) (-1, readcharfun); | |
592 | if (c < 0xA0) | |
593 | { | |
594 | while (--i > 1) | |
595 | (*readbyte) (buf[i], readcharfun); | |
596 | return BYTE8_TO_CHAR (buf[0]); | |
597 | } | |
598 | buf[i++] = c; | |
599 | } | |
600 | ||
601 | if (len == 2) | |
602 | { | |
da6b532c | 603 | charset = emacs_mule_charset[buf[0]]; |
8792be66 KH |
604 | code = buf[1] & 0x7F; |
605 | } | |
606 | else if (len == 3) | |
607 | { | |
608 | if (buf[0] == EMACS_MULE_LEADING_CODE_PRIVATE_11 | |
609 | || buf[0] == EMACS_MULE_LEADING_CODE_PRIVATE_12) | |
610 | { | |
611 | charset = emacs_mule_charset[buf[1]]; | |
612 | code = buf[2] & 0x7F; | |
613 | } | |
614 | else | |
615 | { | |
616 | charset = emacs_mule_charset[buf[0]]; | |
617 | code = ((buf[1] << 8) | buf[2]) & 0x7F7F; | |
618 | } | |
619 | } | |
620 | else | |
621 | { | |
622 | charset = emacs_mule_charset[buf[1]]; | |
8f924df7 | 623 | code = ((buf[2] << 8) | buf[3]) & 0x7F7F; |
8792be66 KH |
624 | } |
625 | c = DECODE_CHAR (charset, code); | |
626 | if (c < 0) | |
627 | Fsignal (Qinvalid_read_syntax, | |
628 | Fcons (build_string ("invalid multibyte form"), Qnil)); | |
629 | return c; | |
630 | } | |
631 | ||
632 | ||
abb13b09 CW |
633 | static Lisp_Object read_internal_start P_ ((Lisp_Object, Lisp_Object, |
634 | Lisp_Object)); | |
635 | static Lisp_Object read0 P_ ((Lisp_Object)); | |
177c0ea7 | 636 | static Lisp_Object read1 P_ ((Lisp_Object, int *, int)); |
abb13b09 CW |
637 | |
638 | static Lisp_Object read_list P_ ((int, Lisp_Object)); | |
639 | static Lisp_Object read_vector P_ ((Lisp_Object, int)); | |
abb13b09 CW |
640 | |
641 | static Lisp_Object substitute_object_recurse P_ ((Lisp_Object, Lisp_Object, | |
642 | Lisp_Object)); | |
643 | static void substitute_object_in_subtree P_ ((Lisp_Object, | |
644 | Lisp_Object)); | |
645 | static void substitute_in_interval P_ ((INTERVAL, Lisp_Object)); | |
9e062b6c | 646 | |
078e7b4a | 647 | \f |
bed23cb2 | 648 | /* Get a character from the tty. */ |
078e7b4a | 649 | |
f42be754 JB |
650 | /* Read input events until we get one that's acceptable for our purposes. |
651 | ||
652 | If NO_SWITCH_FRAME is non-zero, switch-frame events are stashed | |
653 | until we get a character we like, and then stuffed into | |
654 | unread_switch_frame. | |
655 | ||
656 | If ASCII_REQUIRED is non-zero, we check function key events to see | |
657 | if the unmodified version of the symbol has a Qascii_character | |
658 | property, and use that character, if present. | |
659 | ||
660 | If ERROR_NONASCII is non-zero, we signal an error if the input we | |
661 | get isn't an ASCII character with modifiers. If it's zero but | |
662 | ASCII_REQUIRED is non-zero, we just re-read until we get an ASCII | |
bb49a192 RS |
663 | character. |
664 | ||
665 | If INPUT_METHOD is nonzero, we invoke the current input method | |
50e48299 CY |
666 | if the character warrants that. |
667 | ||
668 | If SECONDS is a number, we wait that many seconds for input, and | |
669 | return Qnil if no input arrives within that time. */ | |
cc39bc38 | 670 | |
f42be754 | 671 | Lisp_Object |
bb49a192 | 672 | read_filtered_event (no_switch_frame, ascii_required, error_nonascii, |
50e48299 | 673 | input_method, seconds) |
bb49a192 | 674 | int no_switch_frame, ascii_required, error_nonascii, input_method; |
50e48299 | 675 | Lisp_Object seconds; |
f42be754 | 676 | { |
4332cf50 | 677 | Lisp_Object val, delayed_switch_frame; |
50e48299 | 678 | EMACS_TIME end_time; |
153a17b7 | 679 | |
5dbf89bc | 680 | #ifdef HAVE_WINDOW_SYSTEM |
df6c90d8 GM |
681 | if (display_hourglass_p) |
682 | cancel_hourglass (); | |
5dbf89bc | 683 | #endif |
177c0ea7 | 684 | |
153a17b7 | 685 | delayed_switch_frame = Qnil; |
f42be754 | 686 | |
50e48299 CY |
687 | /* Compute timeout. */ |
688 | if (NUMBERP (seconds)) | |
689 | { | |
690 | EMACS_TIME wait_time; | |
691 | int sec, usec; | |
51d8b30e | 692 | double duration = extract_float (seconds); |
50e48299 CY |
693 | |
694 | sec = (int) duration; | |
695 | usec = (duration - sec) * 1000000; | |
696 | EMACS_GET_TIME (end_time); | |
697 | EMACS_SET_SECS_USECS (wait_time, sec, usec); | |
698 | EMACS_ADD_TIME (end_time, end_time, wait_time); | |
699 | } | |
700 | ||
251bc578 | 701 | /* Read until we get an acceptable event. */ |
f42be754 | 702 | retry: |
88852d45 | 703 | do |
251bc578 KL |
704 | val = read_char (0, 0, 0, (input_method ? Qnil : Qt), 0, |
705 | NUMBERP (seconds) ? &end_time : NULL); | |
9688ff53 | 706 | while (INTEGERP (val) && XINT (val) == -2); /* wrong_kboard_jmpbuf */ |
f42be754 | 707 | |
cfff016d | 708 | if (BUFFERP (val)) |
6c82d689 KH |
709 | goto retry; |
710 | ||
f42be754 | 711 | /* switch-frame events are put off until after the next ASCII |
8e6208c5 | 712 | character. This is better than signaling an error just because |
f42be754 JB |
713 | the last characters were typed to a separate minibuffer frame, |
714 | for example. Eventually, some code which can deal with | |
715 | switch-frame events will read it and process it. */ | |
716 | if (no_switch_frame | |
717 | && EVENT_HAS_PARAMETERS (val) | |
ca77ee45 | 718 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (val)), Qswitch_frame)) |
f42be754 JB |
719 | { |
720 | delayed_switch_frame = val; | |
721 | goto retry; | |
722 | } | |
723 | ||
50e48299 | 724 | if (ascii_required && !(NUMBERP (seconds) && NILP (val))) |
f42be754 JB |
725 | { |
726 | /* Convert certain symbols to their ASCII equivalents. */ | |
cfff016d | 727 | if (SYMBOLP (val)) |
f42be754 | 728 | { |
95384e1e | 729 | Lisp_Object tem, tem1; |
f42be754 JB |
730 | tem = Fget (val, Qevent_symbol_element_mask); |
731 | if (!NILP (tem)) | |
732 | { | |
733 | tem1 = Fget (Fcar (tem), Qascii_character); | |
734 | /* Merge this symbol's modifier bits | |
735 | with the ASCII equivalent of its basic code. */ | |
736 | if (!NILP (tem1)) | |
baf69866 | 737 | XSETFASTINT (val, XINT (tem1) | XINT (Fcar (Fcdr (tem)))); |
f42be754 JB |
738 | } |
739 | } | |
177c0ea7 | 740 | |
f42be754 | 741 | /* If we don't have a character now, deal with it appropriately. */ |
cfff016d | 742 | if (!INTEGERP (val)) |
f42be754 JB |
743 | { |
744 | if (error_nonascii) | |
745 | { | |
1ec84625 | 746 | Vunread_command_events = Fcons (val, Qnil); |
f42be754 JB |
747 | error ("Non-character input-event"); |
748 | } | |
749 | else | |
750 | goto retry; | |
751 | } | |
752 | } | |
753 | ||
754 | if (! NILP (delayed_switch_frame)) | |
755 | unread_switch_frame = delayed_switch_frame; | |
756 | ||
67868d27 PJ |
757 | #if 0 |
758 | ||
5dbf89bc | 759 | #ifdef HAVE_WINDOW_SYSTEM |
df6c90d8 GM |
760 | if (display_hourglass_p) |
761 | start_hourglass (); | |
5dbf89bc | 762 | #endif |
67868d27 PJ |
763 | |
764 | #endif | |
765 | ||
f42be754 | 766 | return val; |
f42be754 JB |
767 | } |
768 | ||
50e48299 | 769 | DEFUN ("read-char", Fread_char, Sread_char, 0, 3, 0, |
5de38842 PJ |
770 | doc: /* Read a character from the command input (keyboard or macro). |
771 | It is returned as a number. | |
fb26c2af KH |
772 | If the character has modifiers, they are resolved and reflected to the |
773 | character code if possible (e.g. C-SPC -> 0). | |
774 | ||
5de38842 PJ |
775 | If the user generates an event which is not a character (i.e. a mouse |
776 | click or function key event), `read-char' signals an error. As an | |
fb26c2af KH |
777 | exception, switch-frame events are put off until non-character events |
778 | can be read. | |
5de38842 PJ |
779 | If you want to read non-character events, or ignore them, call |
780 | `read-event' or `read-char-exclusive' instead. | |
781 | ||
782 | If the optional argument PROMPT is non-nil, display that as a prompt. | |
783 | If the optional argument INHERIT-INPUT-METHOD is non-nil and some | |
784 | input method is turned on in the current buffer, that input method | |
50e48299 CY |
785 | is used for reading a character. |
786 | If the optional argument SECONDS is non-nil, it should be a number | |
787 | specifying the maximum number of seconds to wait for input. If no | |
788 | input arrives in that time, return nil. SECONDS may be a | |
789 | floating-point value. */) | |
790 | (prompt, inherit_input_method, seconds) | |
791 | Lisp_Object prompt, inherit_input_method, seconds; | |
078e7b4a | 792 | { |
fb26c2af KH |
793 | Lisp_Object val; |
794 | int c; | |
795 | ||
bb49a192 RS |
796 | if (! NILP (prompt)) |
797 | message_with_string ("%s", prompt, 0); | |
fb26c2af KH |
798 | val = read_filtered_event (1, 1, 1, ! NILP (inherit_input_method), seconds); |
799 | c = XINT (val); | |
800 | return make_number (char_resolve_modifier_mask (c)); | |
078e7b4a JB |
801 | } |
802 | ||
50e48299 | 803 | DEFUN ("read-event", Fread_event, Sread_event, 0, 3, 0, |
5de38842 PJ |
804 | doc: /* Read an event object from the input stream. |
805 | If the optional argument PROMPT is non-nil, display that as a prompt. | |
806 | If the optional argument INHERIT-INPUT-METHOD is non-nil and some | |
807 | input method is turned on in the current buffer, that input method | |
50e48299 CY |
808 | is used for reading a character. |
809 | If the optional argument SECONDS is non-nil, it should be a number | |
810 | specifying the maximum number of seconds to wait for input. If no | |
811 | input arrives in that time, return nil. SECONDS may be a | |
812 | floating-point value. */) | |
813 | (prompt, inherit_input_method, seconds) | |
814 | Lisp_Object prompt, inherit_input_method, seconds; | |
078e7b4a | 815 | { |
bb49a192 RS |
816 | if (! NILP (prompt)) |
817 | message_with_string ("%s", prompt, 0); | |
50e48299 | 818 | return read_filtered_event (0, 0, 0, ! NILP (inherit_input_method), seconds); |
078e7b4a JB |
819 | } |
820 | ||
50e48299 | 821 | DEFUN ("read-char-exclusive", Fread_char_exclusive, Sread_char_exclusive, 0, 3, 0, |
5de38842 PJ |
822 | doc: /* Read a character from the command input (keyboard or macro). |
823 | It is returned as a number. Non-character events are ignored. | |
fb26c2af KH |
824 | If the character has modifiers, they are resolved and reflected to the |
825 | character code if possible (e.g. C-SPC -> 0). | |
5de38842 PJ |
826 | |
827 | If the optional argument PROMPT is non-nil, display that as a prompt. | |
828 | If the optional argument INHERIT-INPUT-METHOD is non-nil and some | |
829 | input method is turned on in the current buffer, that input method | |
50e48299 CY |
830 | is used for reading a character. |
831 | If the optional argument SECONDS is non-nil, it should be a number | |
832 | specifying the maximum number of seconds to wait for input. If no | |
833 | input arrives in that time, return nil. SECONDS may be a | |
834 | floating-point value. */) | |
835 | (prompt, inherit_input_method, seconds) | |
836 | Lisp_Object prompt, inherit_input_method, seconds; | |
078e7b4a | 837 | { |
fb26c2af KH |
838 | Lisp_Object val; |
839 | int c; | |
840 | ||
bb49a192 RS |
841 | if (! NILP (prompt)) |
842 | message_with_string ("%s", prompt, 0); | |
fb26c2af KH |
843 | val = read_filtered_event (1, 1, 0, ! NILP (inherit_input_method), seconds); |
844 | c = XINT (val); | |
845 | return make_number (char_resolve_modifier_mask (c)); | |
078e7b4a | 846 | } |
078e7b4a JB |
847 | |
848 | DEFUN ("get-file-char", Fget_file_char, Sget_file_char, 0, 0, 0, | |
5de38842 PJ |
849 | doc: /* Don't use this yourself. */) |
850 | () | |
078e7b4a JB |
851 | { |
852 | register Lisp_Object val; | |
66cd0949 | 853 | BLOCK_INPUT; |
1805de4f | 854 | XSETINT (val, getc (instream)); |
66cd0949 | 855 | UNBLOCK_INPUT; |
078e7b4a JB |
856 | return val; |
857 | } | |
da84f340 GM |
858 | |
859 | ||
550a625e | 860 | \f |
8792be66 | 861 | /* Value is a version number of byte compiled code if the file |
c73bd236 | 862 | associated with file descriptor FD is a compiled Lisp file that's |
8792be66 KH |
863 | safe to load. Only files compiled with Emacs are safe to load. |
864 | Files compiled with XEmacs can lead to a crash in Fbyte_code | |
865 | because of an incompatible change in the byte compiler. */ | |
da84f340 GM |
866 | |
867 | static int | |
868 | safe_to_load_p (fd) | |
869 | int fd; | |
870 | { | |
871 | char buf[512]; | |
872 | int nbytes, i; | |
873 | int safe_p = 1; | |
8f924df7 | 874 | int version = 1; |
da84f340 GM |
875 | |
876 | /* Read the first few bytes from the file, and look for a line | |
877 | specifying the byte compiler version used. */ | |
878 | nbytes = emacs_read (fd, buf, sizeof buf - 1); | |
879 | if (nbytes > 0) | |
880 | { | |
881 | buf[nbytes] = '\0'; | |
882 | ||
883 | /* Skip to the next newline, skipping over the initial `ELC' | |
1da3b9e4 | 884 | with NUL bytes following it, but note the version. */ |
da84f340 | 885 | for (i = 0; i < nbytes && buf[i] != '\n'; ++i) |
1da3b9e4 | 886 | if (i == 4) |
8792be66 | 887 | version = buf[i]; |
da84f340 | 888 | |
927f12da KH |
889 | if (i == nbytes |
890 | || fast_c_string_match_ignore_case (Vbytecomp_version_regexp, | |
da84f340 GM |
891 | buf + i) < 0) |
892 | safe_p = 0; | |
893 | } | |
1da3b9e4 DL |
894 | if (safe_p) |
895 | safe_p = version; | |
da84f340 GM |
896 | |
897 | lseek (fd, 0, SEEK_SET); | |
898 | return safe_p; | |
899 | } | |
900 | ||
901 | ||
7ee3bd7b GM |
902 | /* Callback for record_unwind_protect. Restore the old load list OLD, |
903 | after loading a file successfully. */ | |
904 | ||
905 | static Lisp_Object | |
906 | record_load_unwind (old) | |
907 | Lisp_Object old; | |
908 | { | |
909 | return Vloads_in_progress = old; | |
910 | } | |
911 | ||
164c8bfe RS |
912 | /* This handler function is used via internal_condition_case_1. */ |
913 | ||
914 | static Lisp_Object | |
915 | load_error_handler (data) | |
916 | Lisp_Object data; | |
917 | { | |
918 | return Qnil; | |
919 | } | |
7ee3bd7b | 920 | |
1d064697 SM |
921 | static Lisp_Object |
922 | load_warn_old_style_backquotes (file) | |
923 | Lisp_Object file; | |
924 | { | |
925 | if (!NILP (Vold_style_backquotes)) | |
926 | { | |
b636b4c1 | 927 | Lisp_Object args[2]; |
18a4a65e | 928 | args[0] = build_string ("Loading `%s': old-style backquotes detected!"); |
1d064697 SM |
929 | args[1] = file; |
930 | Fmessage (2, args); | |
931 | } | |
932 | return Qnil; | |
933 | } | |
934 | ||
971a4293 LT |
935 | DEFUN ("get-load-suffixes", Fget_load_suffixes, Sget_load_suffixes, 0, 0, 0, |
936 | doc: /* Return the suffixes that `load' should try if a suffix is \ | |
937 | required. | |
938 | This uses the variables `load-suffixes' and `load-file-rep-suffixes'. */) | |
939 | () | |
940 | { | |
941 | Lisp_Object lst = Qnil, suffixes = Vload_suffixes, suffix, ext; | |
942 | while (CONSP (suffixes)) | |
943 | { | |
944 | Lisp_Object exts = Vload_file_rep_suffixes; | |
945 | suffix = XCAR (suffixes); | |
946 | suffixes = XCDR (suffixes); | |
947 | while (CONSP (exts)) | |
948 | { | |
949 | ext = XCAR (exts); | |
950 | exts = XCDR (exts); | |
951 | lst = Fcons (concat2 (suffix, ext), lst); | |
952 | } | |
953 | } | |
954 | return Fnreverse (lst); | |
955 | } | |
956 | ||
f0a50954 | 957 | DEFUN ("load", Fload, Sload, 1, 5, 0, |
5de38842 PJ |
958 | doc: /* Execute a file of Lisp code named FILE. |
959 | First try FILE with `.elc' appended, then try with `.el', | |
971a4293 | 960 | then try FILE unmodified (the exact suffixes in the exact order are |
88852d45 | 961 | determined by `load-suffixes'). Environment variable references in |
971a4293 | 962 | FILE are replaced with their values by calling `substitute-in-file-name'. |
5de38842 | 963 | This function searches the directories in `load-path'. |
971a4293 | 964 | |
5de38842 | 965 | If optional second arg NOERROR is non-nil, |
971a4293 | 966 | report no error if FILE doesn't exist. |
5de38842 | 967 | Print messages at start and end of loading unless |
971a4293 | 968 | optional third arg NOMESSAGE is non-nil. |
5de38842 | 969 | If optional fourth arg NOSUFFIX is non-nil, don't try adding |
971a4293 | 970 | suffixes `.elc' or `.el' to the specified name FILE. |
5de38842 | 971 | If optional fifth arg MUST-SUFFIX is non-nil, insist on |
971a4293 LT |
972 | the suffix `.elc' or `.el'; don't accept just FILE unless |
973 | it ends in one of those suffixes or includes a directory name. | |
974 | ||
975 | If this function fails to find a file, it may look for different | |
976 | representations of that file before trying another file. | |
977 | It does so by adding the non-empty suffixes in `load-file-rep-suffixes' | |
978 | to the file name. Emacs uses this feature mainly to find compressed | |
979 | versions of files when Auto Compression mode is enabled. | |
980 | ||
981 | The exact suffixes that this function tries out, in the exact order, | |
982 | are given by the value of the variable `load-file-rep-suffixes' if | |
983 | NOSUFFIX is non-nil and by the return value of the function | |
984 | `get-load-suffixes' if MUST-SUFFIX is non-nil. If both NOSUFFIX and | |
985 | MUST-SUFFIX are nil, this function first tries out the latter suffixes | |
986 | and then the former. | |
0fc213e9 RS |
987 | |
988 | Loading a file records its definitions, and its `provide' and | |
989 | `require' calls, in an element of `load-history' whose | |
990 | car is the file name loaded. See `load-history'. | |
991 | ||
971a4293 | 992 | Return t if the file exists and loads successfully. */) |
5de38842 | 993 | (file, noerror, nomessage, nosuffix, must_suffix) |
f0a50954 | 994 | Lisp_Object file, noerror, nomessage, nosuffix, must_suffix; |
078e7b4a JB |
995 | { |
996 | register FILE *stream; | |
997 | register int fd = -1; | |
aed13378 | 998 | int count = SPECPDL_INDEX (); |
6bb6da3e AM |
999 | struct gcpro gcpro1, gcpro2, gcpro3; |
1000 | Lisp_Object found, efound, hist_file_name; | |
04fc68e7 RS |
1001 | /* 1 means we printed the ".el is newer" message. */ |
1002 | int newer = 0; | |
1003 | /* 1 means we are loading a compiled file. */ | |
1004 | int compiled = 0; | |
c2225d00 | 1005 | Lisp_Object handler; |
456c67a4 | 1006 | int safe_p = 1; |
229ba775 | 1007 | char *fmode = "r"; |
6bb6da3e | 1008 | Lisp_Object tmp[2]; |
8792be66 KH |
1009 | int version; |
1010 | ||
317073d5 | 1011 | #ifdef DOS_NT |
229ba775 | 1012 | fmode = "rt"; |
317073d5 | 1013 | #endif /* DOS_NT */ |
078e7b4a | 1014 | |
b7826503 | 1015 | CHECK_STRING (file); |
078e7b4a | 1016 | |
c2225d00 | 1017 | /* If file name is magic, call the handler. */ |
e61b9b87 SM |
1018 | /* This shouldn't be necessary any more now that `openp' handles it right. |
1019 | handler = Ffind_file_name_handler (file, Qload); | |
1020 | if (!NILP (handler)) | |
1021 | return call5 (handler, Qload, file, noerror, nomessage, nosuffix); */ | |
c2225d00 | 1022 | |
07a0bda3 RS |
1023 | /* Do this after the handler to avoid |
1024 | the need to gcpro noerror, nomessage and nosuffix. | |
e61b9b87 SM |
1025 | (Below here, we care only whether they are nil or not.) |
1026 | The presence of this call is the result of a historical accident: | |
6bb6da3e | 1027 | it used to be in every file-operation and when it got removed |
e61b9b87 SM |
1028 | everywhere, it accidentally stayed here. Since then, enough people |
1029 | supposedly have things like (load "$PROJECT/foo.el") in their .emacs | |
1030 | that it seemed risky to remove. */ | |
164c8bfe RS |
1031 | if (! NILP (noerror)) |
1032 | { | |
1033 | file = internal_condition_case_1 (Fsubstitute_in_file_name, file, | |
1034 | Qt, load_error_handler); | |
1035 | if (NILP (file)) | |
1036 | return Qnil; | |
1037 | } | |
1038 | else | |
1039 | file = Fsubstitute_in_file_name (file); | |
177c0ea7 | 1040 | |
07a0bda3 | 1041 | |
078e7b4a JB |
1042 | /* Avoid weird lossage with null string as arg, |
1043 | since it would try to load a directory as a Lisp file */ | |
d5db4077 | 1044 | if (SCHARS (file) > 0) |
078e7b4a | 1045 | { |
d5db4077 | 1046 | int size = SBYTES (file); |
211f7dcd | 1047 | |
0fc213e9 RS |
1048 | found = Qnil; |
1049 | GCPRO2 (file, found); | |
211f7dcd RS |
1050 | |
1051 | if (! NILP (must_suffix)) | |
1052 | { | |
1053 | /* Don't insist on adding a suffix if FILE already ends with one. */ | |
1054 | if (size > 3 | |
d5db4077 | 1055 | && !strcmp (SDATA (file) + size - 3, ".el")) |
211f7dcd RS |
1056 | must_suffix = Qnil; |
1057 | else if (size > 4 | |
d5db4077 | 1058 | && !strcmp (SDATA (file) + size - 4, ".elc")) |
211f7dcd RS |
1059 | must_suffix = Qnil; |
1060 | /* Don't insist on adding a suffix | |
1061 | if the argument includes a directory name. */ | |
1062 | else if (! NILP (Ffile_name_directory (file))) | |
1063 | must_suffix = Qnil; | |
1064 | } | |
1065 | ||
f0a50954 | 1066 | fd = openp (Vload_path, file, |
e61b9b87 | 1067 | (!NILP (nosuffix) ? Qnil |
971a4293 LT |
1068 | : !NILP (must_suffix) ? Fget_load_suffixes () |
1069 | : Fappend (2, (tmp[0] = Fget_load_suffixes (), | |
1070 | tmp[1] = Vload_file_rep_suffixes, | |
e61b9b87 | 1071 | tmp))), |
86d00812 | 1072 | &found, Qnil); |
5a6e5452 | 1073 | UNGCPRO; |
078e7b4a JB |
1074 | } |
1075 | ||
96dc0f4e | 1076 | if (fd == -1) |
078e7b4a | 1077 | { |
265a9e55 | 1078 | if (NILP (noerror)) |
336d4a9c KS |
1079 | xsignal2 (Qfile_error, build_string ("Cannot open load file"), file); |
1080 | return Qnil; | |
078e7b4a JB |
1081 | } |
1082 | ||
ba0d1195 | 1083 | /* Tell startup.el whether or not we found the user's init file. */ |
4116ab9f KH |
1084 | if (EQ (Qt, Vuser_init_file)) |
1085 | Vuser_init_file = found; | |
1086 | ||
96dc0f4e MB |
1087 | /* If FD is -2, that means openp found a magic file. */ |
1088 | if (fd == -2) | |
74549846 | 1089 | { |
5e24a1f7 KH |
1090 | if (NILP (Fequal (found, file))) |
1091 | /* If FOUND is a different file name from FILE, | |
1092 | find its handler even if we have already inhibited | |
1093 | the `load' operation on FILE. */ | |
1094 | handler = Ffind_file_name_handler (found, Qt); | |
1095 | else | |
1096 | handler = Ffind_file_name_handler (found, Qload); | |
1097 | if (! NILP (handler)) | |
1098 | return call5 (handler, Qload, found, noerror, nomessage, Qt); | |
74549846 RS |
1099 | } |
1100 | ||
550a625e GM |
1101 | /* Check if we're stuck in a recursive load cycle. |
1102 | ||
1103 | 2000-09-21: It's not possible to just check for the file loaded | |
1104 | being a member of Vloads_in_progress. This fails because of the | |
1105 | way the byte compiler currently works; `provide's are not | |
1106 | evaluted, see font-lock.el/jit-lock.el as an example. This | |
1107 | leads to a certain amount of ``normal'' recursion. | |
1108 | ||
1109 | Also, just loading a file recursively is not always an error in | |
1110 | the general case; the second load may do something different. */ | |
3ba6fd9a RS |
1111 | { |
1112 | int count = 0; | |
1113 | Lisp_Object tem; | |
1114 | for (tem = Vloads_in_progress; CONSP (tem); tem = XCDR (tem)) | |
1115 | if (!NILP (Fequal (found, XCAR (tem)))) | |
1116 | count++; | |
1117 | if (count > 3) | |
3fdf12ca EZ |
1118 | { |
1119 | if (fd >= 0) | |
1120 | emacs_close (fd); | |
336d4a9c | 1121 | signal_error ("Recursive load", Fcons (found, Vloads_in_progress)); |
3fdf12ca | 1122 | } |
3ba6fd9a RS |
1123 | record_unwind_protect (record_load_unwind, Vloads_in_progress); |
1124 | Vloads_in_progress = Fcons (found, Vloads_in_progress); | |
1125 | } | |
7ee3bd7b | 1126 | |
6bb6da3e AM |
1127 | /* Get the name for load-history. */ |
1128 | hist_file_name = (! NILP (Vpurify_flag) | |
1129 | ? Fconcat (2, (tmp[0] = Ffile_name_directory (file), | |
1130 | tmp[1] = Ffile_name_nondirectory (found), | |
1131 | tmp)) | |
1132 | : found) ; | |
1133 | ||
8792be66 | 1134 | version = -1; |
1bb9a689 | 1135 | |
88852d45 | 1136 | /* Check for the presence of old-style quotes and warn about them. */ |
1d064697 SM |
1137 | specbind (Qold_style_backquotes, Qnil); |
1138 | record_unwind_protect (load_warn_old_style_backquotes, file); | |
1139 | ||
a1c89c0a | 1140 | if (!bcmp (SDATA (found) + SBYTES (found) - 4, |
8792be66 KH |
1141 | ".elc", 4) |
1142 | || (version = safe_to_load_p (fd)) > 0) | |
96dc0f4e MB |
1143 | /* Load .elc files directly, but not when they are |
1144 | remote and have no handler! */ | |
078e7b4a | 1145 | { |
96dc0f4e | 1146 | if (fd != -2) |
da84f340 | 1147 | { |
96dc0f4e MB |
1148 | struct stat s1, s2; |
1149 | int result; | |
da84f340 | 1150 | |
6bb6da3e | 1151 | GCPRO3 (file, found, hist_file_name); |
0fc213e9 | 1152 | |
8792be66 KH |
1153 | if (version < 0 |
1154 | && ! (version = safe_to_load_p (fd))) | |
96dc0f4e MB |
1155 | { |
1156 | safe_p = 0; | |
1157 | if (!load_dangerous_libraries) | |
e63304b7 DL |
1158 | { |
1159 | if (fd >= 0) | |
1160 | emacs_close (fd); | |
1161 | error ("File `%s' was not compiled in Emacs", | |
1162 | SDATA (found)); | |
1163 | } | |
96dc0f4e MB |
1164 | else if (!NILP (nomessage)) |
1165 | message_with_string ("File `%s' not compiled in Emacs", found, 1); | |
1166 | } | |
04fc68e7 | 1167 | |
96dc0f4e MB |
1168 | compiled = 1; |
1169 | ||
eb191db2 EZ |
1170 | efound = ENCODE_FILE (found); |
1171 | ||
26fbf20b | 1172 | #ifdef DOS_NT |
96dc0f4e | 1173 | fmode = "rb"; |
26fbf20b | 1174 | #endif /* DOS_NT */ |
d5db4077 | 1175 | stat ((char *)SDATA (efound), &s1); |
a1c89c0a | 1176 | SSET (efound, SBYTES (efound) - 1, 0); |
d5db4077 | 1177 | result = stat ((char *)SDATA (efound), &s2); |
a1c89c0a | 1178 | SSET (efound, SBYTES (efound) - 1, 'c'); |
eb191db2 | 1179 | |
96dc0f4e MB |
1180 | if (result >= 0 && (unsigned) s1.st_mtime < (unsigned) s2.st_mtime) |
1181 | { | |
1182 | /* Make the progress messages mention that source is newer. */ | |
1183 | newer = 1; | |
04fc68e7 | 1184 | |
96dc0f4e | 1185 | /* If we won't print another message, mention this anyway. */ |
714d8c39 GM |
1186 | if (!NILP (nomessage)) |
1187 | { | |
0fc213e9 RS |
1188 | Lisp_Object msg_file; |
1189 | msg_file = Fsubstring (found, make_number (0), make_number (-1)); | |
714d8c39 | 1190 | message_with_string ("Source file `%s' newer than byte-compiled file", |
0fc213e9 | 1191 | msg_file, 1); |
714d8c39 | 1192 | } |
96dc0f4e | 1193 | } |
0fc213e9 | 1194 | UNGCPRO; |
51ac6f83 | 1195 | } |
078e7b4a | 1196 | } |
fe0e03f3 KH |
1197 | else |
1198 | { | |
1199 | /* We are loading a source file (*.el). */ | |
1200 | if (!NILP (Vload_source_file_function)) | |
1201 | { | |
7ee3bd7b | 1202 | Lisp_Object val; |
96dc0f4e MB |
1203 | |
1204 | if (fd >= 0) | |
68c45bf0 | 1205 | emacs_close (fd); |
6bb6da3e | 1206 | val = call4 (Vload_source_file_function, found, hist_file_name, |
7ee3bd7b GM |
1207 | NILP (noerror) ? Qnil : Qt, |
1208 | NILP (nomessage) ? Qnil : Qt); | |
1209 | return unbind_to (count, val); | |
fe0e03f3 KH |
1210 | } |
1211 | } | |
078e7b4a | 1212 | |
6bb6da3e | 1213 | GCPRO3 (file, found, hist_file_name); |
0fc213e9 | 1214 | |
229ba775 | 1215 | #ifdef WINDOWSNT |
68c45bf0 | 1216 | emacs_close (fd); |
eb191db2 | 1217 | efound = ENCODE_FILE (found); |
d5db4077 | 1218 | stream = fopen ((char *) SDATA (efound), fmode); |
229ba775 EZ |
1219 | #else /* not WINDOWSNT */ |
1220 | stream = fdopen (fd, fmode); | |
1221 | #endif /* not WINDOWSNT */ | |
078e7b4a JB |
1222 | if (stream == 0) |
1223 | { | |
68c45bf0 | 1224 | emacs_close (fd); |
d5db4077 | 1225 | error ("Failure to create stdio stream for %s", SDATA (file)); |
078e7b4a JB |
1226 | } |
1227 | ||
4b104c41 RS |
1228 | if (! NILP (Vpurify_flag)) |
1229 | Vpreloaded_file_list = Fcons (file, Vpreloaded_file_list); | |
1230 | ||
04fc68e7 RS |
1231 | if (NILP (nomessage)) |
1232 | { | |
da84f340 GM |
1233 | if (!safe_p) |
1234 | message_with_string ("Loading %s (compiled; note unsafe, not compiled in Emacs)...", | |
1235 | file, 1); | |
1236 | else if (!compiled) | |
e28552a4 | 1237 | message_with_string ("Loading %s (source)...", file, 1); |
db5cae4b | 1238 | else if (newer) |
e28552a4 RS |
1239 | message_with_string ("Loading %s (compiled; note, source file is newer)...", |
1240 | file, 1); | |
db5cae4b | 1241 | else /* The typical case; compiled file newer than source file. */ |
e28552a4 | 1242 | message_with_string ("Loading %s...", file, 1); |
04fc68e7 | 1243 | } |
078e7b4a | 1244 | |
c04d9e70 | 1245 | record_unwind_protect (load_unwind, make_save_value (stream, 0)); |
d2c6be7f | 1246 | record_unwind_protect (load_descriptor_unwind, load_descriptor_list); |
20ea2964 | 1247 | specbind (Qload_file_name, found); |
74549846 | 1248 | specbind (Qinhibit_file_name_operation, Qnil); |
d2c6be7f RS |
1249 | load_descriptor_list |
1250 | = Fcons (make_number (fileno (stream)), load_descriptor_list); | |
078e7b4a | 1251 | load_in_progress++; |
ab2a47e1 | 1252 | if (! version || version >= 22) |
b883cdb2 | 1253 | readevalloop (Qget_file_char, stream, hist_file_name, |
6a2bd1a5 | 1254 | Feval, 0, Qnil, Qnil, Qnil, Qnil); |
8792be66 KH |
1255 | else |
1256 | { | |
1257 | /* We can't handle a file which was compiled with | |
1258 | byte-compile-dynamic by older version of Emacs. */ | |
1259 | specbind (Qload_force_doc_strings, Qt); | |
b883cdb2 | 1260 | readevalloop (Qget_emacs_mule_file_char, stream, hist_file_name, Feval, |
768d4533 | 1261 | 0, Qnil, Qnil, Qnil, Qnil); |
8792be66 | 1262 | } |
078e7b4a JB |
1263 | unbind_to (count, Qnil); |
1264 | ||
6bb6da3e AM |
1265 | /* Run any eval-after-load forms for this file */ |
1266 | if (NILP (Vpurify_flag) | |
1267 | && (!NILP (Ffboundp (Qdo_after_load_evaluation)))) | |
1268 | call1 (Qdo_after_load_evaluation, hist_file_name) ; | |
1269 | ||
078e7b4a JB |
1270 | UNGCPRO; |
1271 | ||
c2cd06e6 | 1272 | free (saved_doc_string); |
b2a30870 RS |
1273 | saved_doc_string = 0; |
1274 | saved_doc_string_size = 0; | |
1275 | ||
70fdbb46 | 1276 | xfree (prev_saved_doc_string); |
c15cfd1f RS |
1277 | prev_saved_doc_string = 0; |
1278 | prev_saved_doc_string_size = 0; | |
1279 | ||
265a9e55 | 1280 | if (!noninteractive && NILP (nomessage)) |
04fc68e7 | 1281 | { |
da84f340 GM |
1282 | if (!safe_p) |
1283 | message_with_string ("Loading %s (compiled; note unsafe, not compiled in Emacs)...done", | |
1284 | file, 1); | |
1285 | else if (!compiled) | |
e28552a4 | 1286 | message_with_string ("Loading %s (source)...done", file, 1); |
db5cae4b | 1287 | else if (newer) |
e28552a4 RS |
1288 | message_with_string ("Loading %s (compiled; note, source file is newer)...done", |
1289 | file, 1); | |
db5cae4b | 1290 | else /* The typical case; compiled file newer than source file. */ |
e28552a4 | 1291 | message_with_string ("Loading %s...done", file, 1); |
04fc68e7 | 1292 | } |
7ee3bd7b | 1293 | |
11810d78 SM |
1294 | if (!NILP (Fequal (build_string ("obsolete"), |
1295 | Ffile_name_nondirectory | |
1296 | (Fdirectory_file_name (Ffile_name_directory (found)))))) | |
1297 | message_with_string ("Package %s is obsolete", file, 1); | |
1298 | ||
078e7b4a JB |
1299 | return Qt; |
1300 | } | |
1301 | ||
1302 | static Lisp_Object | |
ebfe97a2 KS |
1303 | load_unwind (arg) /* used as unwind-protect function in load */ |
1304 | Lisp_Object arg; | |
078e7b4a | 1305 | { |
ebfe97a2 KS |
1306 | FILE *stream = (FILE *) XSAVE_VALUE (arg)->pointer; |
1307 | if (stream != NULL) | |
66cd0949 YM |
1308 | { |
1309 | BLOCK_INPUT; | |
1310 | fclose (stream); | |
1311 | UNBLOCK_INPUT; | |
1312 | } | |
078e7b4a JB |
1313 | if (--load_in_progress < 0) load_in_progress = 0; |
1314 | return Qnil; | |
1315 | } | |
1316 | ||
d2c6be7f RS |
1317 | static Lisp_Object |
1318 | load_descriptor_unwind (oldlist) | |
1319 | Lisp_Object oldlist; | |
1320 | { | |
1321 | load_descriptor_list = oldlist; | |
838abf56 | 1322 | return Qnil; |
d2c6be7f RS |
1323 | } |
1324 | ||
1325 | /* Close all descriptors in use for Floads. | |
1326 | This is used when starting a subprocess. */ | |
1327 | ||
1328 | void | |
1329 | close_load_descs () | |
1330 | { | |
f3849f25 | 1331 | #ifndef WINDOWSNT |
d2c6be7f | 1332 | Lisp_Object tail; |
9beb8baa | 1333 | for (tail = load_descriptor_list; CONSP (tail); tail = XCDR (tail)) |
68c45bf0 | 1334 | emacs_close (XFASTINT (XCAR (tail))); |
f3849f25 | 1335 | #endif |
d2c6be7f | 1336 | } |
078e7b4a JB |
1337 | \f |
1338 | static int | |
1339 | complete_filename_p (pathname) | |
1340 | Lisp_Object pathname; | |
1341 | { | |
4b2dd274 | 1342 | register const unsigned char *s = SDATA (pathname); |
317073d5 | 1343 | return (IS_DIRECTORY_SEP (s[0]) |
d5db4077 | 1344 | || (SCHARS (pathname) > 2 |
317073d5 | 1345 | && IS_DEVICE_SEP (s[1]) && IS_DIRECTORY_SEP (s[2])) |
078e7b4a JB |
1346 | #ifdef VMS |
1347 | || index (s, ':') | |
1348 | #endif /* VMS */ | |
1349 | ); | |
1350 | } | |
1351 | ||
86d00812 SM |
1352 | DEFUN ("locate-file-internal", Flocate_file_internal, Slocate_file_internal, 2, 4, 0, |
1353 | doc: /* Search for FILENAME through PATH. | |
57a131fb | 1354 | Returns the file's name in absolute form, or nil if not found. |
86d00812 SM |
1355 | If SUFFIXES is non-nil, it should be a list of suffixes to append to |
1356 | file name when searching. | |
1357 | If non-nil, PREDICATE is used instead of `file-readable-p'. | |
1358 | PREDICATE can also be an integer to pass to the access(2) function, | |
1359 | in which case file-name-handlers are ignored. */) | |
1360 | (filename, path, suffixes, predicate) | |
1361 | Lisp_Object filename, path, suffixes, predicate; | |
1362 | { | |
1363 | Lisp_Object file; | |
1364 | int fd = openp (path, filename, suffixes, &file, predicate); | |
1365 | if (NILP (predicate) && fd > 0) | |
1366 | close (fd); | |
1367 | return file; | |
1368 | } | |
1369 | ||
1370 | ||
078e7b4a JB |
1371 | /* Search for a file whose name is STR, looking in directories |
1372 | in the Lisp list PATH, and trying suffixes from SUFFIX. | |
078e7b4a JB |
1373 | On success, returns a file descriptor. On failure, returns -1. |
1374 | ||
e61b9b87 | 1375 | SUFFIXES is a list of strings containing possible suffixes. |
e0f24100 | 1376 | The empty suffix is automatically added if the list is empty. |
e61b9b87 | 1377 | |
86d00812 SM |
1378 | PREDICATE non-nil means don't open the files, |
1379 | just look for one that satisfies the predicate. In this case, | |
1380 | returns 1 on success. The predicate can be a lisp function or | |
1381 | an integer to pass to `access' (in which case file-name-handlers | |
1382 | are ignored). | |
078e7b4a JB |
1383 | |
1384 | If STOREPTR is nonzero, it points to a slot where the name of | |
1385 | the file actually found should be stored as a Lisp string. | |
74549846 RS |
1386 | nil is stored there on failure. |
1387 | ||
96dc0f4e | 1388 | If the file we find is remote, return -2 |
86d00812 | 1389 | but store the found remote file name in *STOREPTR. */ |
078e7b4a JB |
1390 | |
1391 | int | |
86d00812 | 1392 | openp (path, str, suffixes, storeptr, predicate) |
078e7b4a | 1393 | Lisp_Object path, str; |
e61b9b87 | 1394 | Lisp_Object suffixes; |
078e7b4a | 1395 | Lisp_Object *storeptr; |
86d00812 | 1396 | Lisp_Object predicate; |
078e7b4a JB |
1397 | { |
1398 | register int fd; | |
1399 | int fn_size = 100; | |
1400 | char buf[100]; | |
1401 | register char *fn = buf; | |
1402 | int absolute = 0; | |
1403 | int want_size; | |
74549846 | 1404 | Lisp_Object filename; |
078e7b4a | 1405 | struct stat st; |
eb191db2 EZ |
1406 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5, gcpro6; |
1407 | Lisp_Object string, tail, encoded_fn; | |
e61b9b87 SM |
1408 | int max_suffix_len = 0; |
1409 | ||
6f8eafd1 SM |
1410 | CHECK_STRING (str); |
1411 | ||
e61b9b87 SM |
1412 | for (tail = suffixes; CONSP (tail); tail = XCDR (tail)) |
1413 | { | |
f5df591a | 1414 | CHECK_STRING_CAR (tail); |
e61b9b87 | 1415 | max_suffix_len = max (max_suffix_len, |
d5db4077 | 1416 | SBYTES (XCAR (tail))); |
e61b9b87 | 1417 | } |
078e7b4a | 1418 | |
8b9d426a | 1419 | string = filename = encoded_fn = Qnil; |
eb191db2 EZ |
1420 | GCPRO6 (str, string, filename, path, suffixes, encoded_fn); |
1421 | ||
078e7b4a JB |
1422 | if (storeptr) |
1423 | *storeptr = Qnil; | |
1424 | ||
1425 | if (complete_filename_p (str)) | |
1426 | absolute = 1; | |
1427 | ||
e61b9b87 | 1428 | for (; CONSP (path); path = XCDR (path)) |
078e7b4a | 1429 | { |
e61b9b87 | 1430 | filename = Fexpand_file_name (str, XCAR (path)); |
078e7b4a JB |
1431 | if (!complete_filename_p (filename)) |
1432 | /* If there are non-absolute elts in PATH (eg ".") */ | |
1433 | /* Of course, this could conceivably lose if luser sets | |
1434 | default-directory to be something non-absolute... */ | |
1435 | { | |
1436 | filename = Fexpand_file_name (filename, current_buffer->directory); | |
1437 | if (!complete_filename_p (filename)) | |
1438 | /* Give up on this path element! */ | |
1439 | continue; | |
1440 | } | |
1441 | ||
1442 | /* Calculate maximum size of any filename made from | |
1443 | this path element/specified file name and any possible suffix. */ | |
d5db4077 | 1444 | want_size = max_suffix_len + SBYTES (filename) + 1; |
078e7b4a JB |
1445 | if (fn_size < want_size) |
1446 | fn = (char *) alloca (fn_size = 100 + want_size); | |
1447 | ||
078e7b4a | 1448 | /* Loop over suffixes. */ |
a74d1c97 | 1449 | for (tail = NILP (suffixes) ? Fcons (empty_unibyte_string, Qnil) : suffixes; |
e61b9b87 | 1450 | CONSP (tail); tail = XCDR (tail)) |
078e7b4a | 1451 | { |
d5db4077 | 1452 | int lsuffix = SBYTES (XCAR (tail)); |
74549846 | 1453 | Lisp_Object handler; |
eb191db2 | 1454 | int exists; |
078e7b4a | 1455 | |
c49afcd7 RS |
1456 | /* Concatenate path element/specified name with the suffix. |
1457 | If the directory starts with /:, remove that. */ | |
d5db4077 KR |
1458 | if (SCHARS (filename) > 2 |
1459 | && SREF (filename, 0) == '/' | |
1460 | && SREF (filename, 1) == ':') | |
c49afcd7 | 1461 | { |
d5db4077 KR |
1462 | strncpy (fn, SDATA (filename) + 2, |
1463 | SBYTES (filename) - 2); | |
1464 | fn[SBYTES (filename) - 2] = 0; | |
c49afcd7 RS |
1465 | } |
1466 | else | |
1467 | { | |
d5db4077 KR |
1468 | strncpy (fn, SDATA (filename), |
1469 | SBYTES (filename)); | |
1470 | fn[SBYTES (filename)] = 0; | |
c49afcd7 RS |
1471 | } |
1472 | ||
078e7b4a | 1473 | if (lsuffix != 0) /* Bug happens on CCI if lsuffix is 0. */ |
d5db4077 | 1474 | strncat (fn, SDATA (XCAR (tail)), lsuffix); |
eb191db2 | 1475 | |
74549846 | 1476 | /* Check that the file exists and is not a directory. */ |
e61b9b87 SM |
1477 | /* We used to only check for handlers on non-absolute file names: |
1478 | if (absolute) | |
1479 | handler = Qnil; | |
1480 | else | |
1481 | handler = Ffind_file_name_handler (filename, Qfile_exists_p); | |
1482 | It's not clear why that was the case and it breaks things like | |
1483 | (load "/bar.el") where the file is actually "/bar.el.gz". */ | |
eb191db2 | 1484 | string = build_string (fn); |
4773b8ca | 1485 | handler = Ffind_file_name_handler (string, Qfile_exists_p); |
86d00812 SM |
1486 | if ((!NILP (handler) || !NILP (predicate)) && !NATNUMP (predicate)) |
1487 | { | |
1488 | if (NILP (predicate)) | |
1489 | exists = !NILP (Ffile_readable_p (string)); | |
1490 | else | |
1491 | exists = !NILP (call1 (predicate, string)); | |
eb191db2 | 1492 | if (exists && !NILP (Ffile_directory_p (string))) |
74549846 RS |
1493 | exists = 0; |
1494 | ||
1495 | if (exists) | |
078e7b4a JB |
1496 | { |
1497 | /* We succeeded; return this descriptor and filename. */ | |
1498 | if (storeptr) | |
eb191db2 | 1499 | *storeptr = string; |
5ef2a3c0 | 1500 | UNGCPRO; |
96dc0f4e | 1501 | return -2; |
74549846 RS |
1502 | } |
1503 | } | |
1504 | else | |
1505 | { | |
4b2dd274 | 1506 | const char *pfn; |
eb191db2 EZ |
1507 | |
1508 | encoded_fn = ENCODE_FILE (string); | |
d5db4077 | 1509 | pfn = SDATA (encoded_fn); |
eb191db2 EZ |
1510 | exists = (stat (pfn, &st) >= 0 |
1511 | && (st.st_mode & S_IFMT) != S_IFDIR); | |
74549846 RS |
1512 | if (exists) |
1513 | { | |
1514 | /* Check that we can access or open it. */ | |
86d00812 SM |
1515 | if (NATNUMP (predicate)) |
1516 | fd = (access (pfn, XFASTINT (predicate)) == 0) ? 1 : -1; | |
74549846 | 1517 | else |
eb191db2 | 1518 | fd = emacs_open (pfn, O_RDONLY, 0); |
74549846 RS |
1519 | |
1520 | if (fd >= 0) | |
1521 | { | |
1522 | /* We succeeded; return this descriptor and filename. */ | |
1523 | if (storeptr) | |
eb191db2 | 1524 | *storeptr = string; |
74549846 RS |
1525 | UNGCPRO; |
1526 | return fd; | |
1527 | } | |
078e7b4a JB |
1528 | } |
1529 | } | |
078e7b4a | 1530 | } |
5a6e5452 | 1531 | if (absolute) |
5ef2a3c0 | 1532 | break; |
078e7b4a JB |
1533 | } |
1534 | ||
5ef2a3c0 KH |
1535 | UNGCPRO; |
1536 | return -1; | |
078e7b4a JB |
1537 | } |
1538 | ||
1539 | \f | |
ae321d28 RS |
1540 | /* Merge the list we've accumulated of globals from the current input source |
1541 | into the load_history variable. The details depend on whether | |
b502a9a1 RS |
1542 | the source has an associated file name or not. |
1543 | ||
1544 | FILENAME is the file name that we are loading from. | |
1545 | ENTIRE is 1 if loading that entire file, 0 if evaluating part of it. */ | |
ae321d28 RS |
1546 | |
1547 | static void | |
b502a9a1 RS |
1548 | build_load_history (filename, entire) |
1549 | Lisp_Object filename; | |
1550 | int entire; | |
ae321d28 RS |
1551 | { |
1552 | register Lisp_Object tail, prev, newelt; | |
1553 | register Lisp_Object tem, tem2; | |
b502a9a1 | 1554 | register int foundit = 0; |
ae321d28 RS |
1555 | |
1556 | tail = Vload_history; | |
1557 | prev = Qnil; | |
b502a9a1 | 1558 | |
86d00812 | 1559 | while (CONSP (tail)) |
ae321d28 | 1560 | { |
86d00812 | 1561 | tem = XCAR (tail); |
ae321d28 RS |
1562 | |
1563 | /* Find the feature's previous assoc list... */ | |
b502a9a1 | 1564 | if (!NILP (Fequal (filename, Fcar (tem)))) |
ae321d28 RS |
1565 | { |
1566 | foundit = 1; | |
1567 | ||
b502a9a1 RS |
1568 | /* If we're loading the entire file, remove old data. */ |
1569 | if (entire) | |
86d00812 | 1570 | { |
ae321d28 | 1571 | if (NILP (prev)) |
86d00812 | 1572 | Vload_history = XCDR (tail); |
ae321d28 | 1573 | else |
86d00812 | 1574 | Fsetcdr (prev, XCDR (tail)); |
ae321d28 RS |
1575 | } |
1576 | ||
1577 | /* Otherwise, cons on new symbols that are not already members. */ | |
1578 | else | |
1579 | { | |
1580 | tem2 = Vcurrent_load_list; | |
1581 | ||
1582 | while (CONSP (tem2)) | |
1583 | { | |
86d00812 | 1584 | newelt = XCAR (tem2); |
ae321d28 | 1585 | |
d642e4f9 | 1586 | if (NILP (Fmember (newelt, tem))) |
86d00812 SM |
1587 | Fsetcar (tail, Fcons (XCAR (tem), |
1588 | Fcons (newelt, XCDR (tem)))); | |
ae321d28 | 1589 | |
86d00812 | 1590 | tem2 = XCDR (tem2); |
ae321d28 RS |
1591 | QUIT; |
1592 | } | |
1593 | } | |
1594 | } | |
1595 | else | |
1596 | prev = tail; | |
86d00812 | 1597 | tail = XCDR (tail); |
ae321d28 RS |
1598 | QUIT; |
1599 | } | |
1600 | ||
b502a9a1 RS |
1601 | /* If we're loading an entire file, cons the new assoc onto the |
1602 | front of load-history, the most-recently-loaded position. Also | |
1603 | do this if we didn't find an existing member for the file. */ | |
1604 | if (entire || !foundit) | |
8a1f1537 RS |
1605 | Vload_history = Fcons (Fnreverse (Vcurrent_load_list), |
1606 | Vload_history); | |
ae321d28 RS |
1607 | } |
1608 | ||
078e7b4a | 1609 | Lisp_Object |
232ccf27 DL |
1610 | unreadpure (junk) /* Used as unwind-protect function in readevalloop */ |
1611 | Lisp_Object junk; | |
078e7b4a JB |
1612 | { |
1613 | read_pure = 0; | |
1614 | return Qnil; | |
1615 | } | |
1616 | ||
94e554db RS |
1617 | static Lisp_Object |
1618 | readevalloop_1 (old) | |
1619 | Lisp_Object old; | |
1620 | { | |
1621 | load_convert_to_unibyte = ! NILP (old); | |
1622 | return Qnil; | |
1623 | } | |
1624 | ||
9c97398c GM |
1625 | /* Signal an `end-of-file' error, if possible with file name |
1626 | information. */ | |
1627 | ||
1628 | static void | |
1629 | end_of_file_error () | |
1630 | { | |
9c97398c | 1631 | if (STRINGP (Vload_file_name)) |
336d4a9c | 1632 | xsignal1 (Qend_of_file, Vload_file_name); |
9c97398c | 1633 | |
336d4a9c | 1634 | xsignal0 (Qend_of_file); |
9c97398c GM |
1635 | } |
1636 | ||
94e554db | 1637 | /* UNIBYTE specifies how to set load_convert_to_unibyte |
976350af | 1638 | for this invocation. |
4c03c46d | 1639 | READFUN, if non-nil, is used instead of `read'. |
1ed7b9ae RS |
1640 | |
1641 | START, END specify region to read in current buffer (from eval-region). | |
1642 | If the input is not from a buffer, they must be nil. */ | |
94e554db | 1643 | |
078e7b4a | 1644 | static void |
4c03c46d KS |
1645 | readevalloop (readcharfun, stream, sourcename, evalfun, |
1646 | printflag, unibyte, readfun, start, end) | |
078e7b4a | 1647 | Lisp_Object readcharfun; |
ae321d28 RS |
1648 | FILE *stream; |
1649 | Lisp_Object sourcename; | |
078e7b4a JB |
1650 | Lisp_Object (*evalfun) (); |
1651 | int printflag; | |
976350af | 1652 | Lisp_Object unibyte, readfun; |
4c03c46d | 1653 | Lisp_Object start, end; |
078e7b4a JB |
1654 | { |
1655 | register int c; | |
1656 | register Lisp_Object val; | |
aed13378 | 1657 | int count = SPECPDL_INDEX (); |
0a37f512 | 1658 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; |
49cf7ff4 | 1659 | struct buffer *b = 0; |
f38952fe | 1660 | int continue_reading_p; |
d11db2c8 RS |
1661 | /* Nonzero if reading an entire buffer. */ |
1662 | int whole_buffer = 0; | |
1663 | /* 1 on the first time around. */ | |
1664 | int first_sexp = 1; | |
1665 | ||
1666 | if (MARKERP (readcharfun)) | |
1667 | { | |
1668 | if (NILP (start)) | |
8878319c | 1669 | start = readcharfun; |
d11db2c8 | 1670 | } |
49cf7ff4 RS |
1671 | |
1672 | if (BUFFERP (readcharfun)) | |
1673 | b = XBUFFER (readcharfun); | |
1674 | else if (MARKERP (readcharfun)) | |
1675 | b = XMARKER (readcharfun)->buffer; | |
078e7b4a | 1676 | |
1ed7b9ae RS |
1677 | /* We assume START is nil when input is not from a buffer. */ |
1678 | if (! NILP (start) && !b) | |
1679 | abort (); | |
1680 | ||
0a37f512 | 1681 | specbind (Qstandard_input, readcharfun); /* GCPROs readcharfun. */ |
8a1f1537 | 1682 | specbind (Qcurrent_load_list, Qnil); |
94e554db RS |
1683 | record_unwind_protect (readevalloop_1, load_convert_to_unibyte ? Qt : Qnil); |
1684 | load_convert_to_unibyte = !NILP (unibyte); | |
078e7b4a | 1685 | |
0a37f512 | 1686 | GCPRO4 (sourcename, readfun, start, end); |
ae321d28 | 1687 | |
6bb6da3e AM |
1688 | /* Try to ensure sourcename is a truename, except whilst preloading. */ |
1689 | if (NILP (Vpurify_flag) | |
91fe9496 SM |
1690 | && !NILP (sourcename) && !NILP (Ffile_name_absolute_p (sourcename)) |
1691 | && !NILP (Ffboundp (Qfile_truename))) | |
6bb6da3e AM |
1692 | sourcename = call1 (Qfile_truename, sourcename) ; |
1693 | ||
ae321d28 RS |
1694 | LOADHIST_ATTACH (sourcename); |
1695 | ||
f38952fe GM |
1696 | continue_reading_p = 1; |
1697 | while (continue_reading_p) | |
078e7b4a | 1698 | { |
4c03c46d KS |
1699 | int count1 = SPECPDL_INDEX (); |
1700 | ||
49cf7ff4 RS |
1701 | if (b != 0 && NILP (b->name)) |
1702 | error ("Reading from killed buffer"); | |
1703 | ||
4c03c46d KS |
1704 | if (!NILP (start)) |
1705 | { | |
721b7d9e | 1706 | /* Switch to the buffer we are reading from. */ |
4c03c46d | 1707 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); |
721b7d9e RS |
1708 | set_buffer_internal (b); |
1709 | ||
1710 | /* Save point in it. */ | |
4c03c46d | 1711 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); |
721b7d9e | 1712 | /* Save ZV in it. */ |
4c03c46d | 1713 | record_unwind_protect (save_restriction_restore, save_restriction_save ()); |
721b7d9e RS |
1714 | /* Those get unbound after we read one expression. */ |
1715 | ||
1716 | /* Set point and ZV around stuff to be read. */ | |
4c03c46d | 1717 | Fgoto_char (start); |
d11db2c8 RS |
1718 | if (!NILP (end)) |
1719 | Fnarrow_to_region (make_number (BEGV), end); | |
1720 | ||
1721 | /* Just for cleanliness, convert END to a marker | |
1722 | if it is an integer. */ | |
1723 | if (INTEGERP (end)) | |
1724 | end = Fpoint_max_marker (); | |
4c03c46d KS |
1725 | } |
1726 | ||
d11db2c8 RS |
1727 | /* On the first cycle, we can easily test here |
1728 | whether we are reading the whole buffer. */ | |
1729 | if (b && first_sexp) | |
1730 | whole_buffer = (PT == BEG && ZV == Z); | |
1731 | ||
078e7b4a | 1732 | instream = stream; |
4c03c46d | 1733 | read_next: |
078e7b4a JB |
1734 | c = READCHAR; |
1735 | if (c == ';') | |
1736 | { | |
1737 | while ((c = READCHAR) != '\n' && c != -1); | |
4c03c46d KS |
1738 | goto read_next; |
1739 | } | |
1740 | if (c < 0) | |
1741 | { | |
1742 | unbind_to (count1, Qnil); | |
1743 | break; | |
078e7b4a | 1744 | } |
6069d957 RS |
1745 | |
1746 | /* Ignore whitespace here, so we can detect eof. */ | |
adef3de7 RS |
1747 | if (c == ' ' || c == '\t' || c == '\n' || c == '\f' || c == '\r' |
1748 | || c == 0x8a0) /* NBSP */ | |
4c03c46d | 1749 | goto read_next; |
078e7b4a | 1750 | |
265a9e55 | 1751 | if (!NILP (Vpurify_flag) && c == '(') |
078e7b4a JB |
1752 | { |
1753 | record_unwind_protect (unreadpure, Qnil); | |
1754 | val = read_list (-1, readcharfun); | |
078e7b4a JB |
1755 | } |
1756 | else | |
1757 | { | |
1758 | UNREAD (c); | |
4ad679f9 | 1759 | read_objects = Qnil; |
f38952fe GM |
1760 | if (!NILP (readfun)) |
1761 | { | |
1762 | val = call1 (readfun, readcharfun); | |
1763 | ||
1764 | /* If READCHARFUN has set point to ZV, we should | |
1765 | stop reading, even if the form read sets point | |
1766 | to a different value when evaluated. */ | |
1767 | if (BUFFERP (readcharfun)) | |
1768 | { | |
1769 | struct buffer *b = XBUFFER (readcharfun); | |
1770 | if (BUF_PT (b) == BUF_ZV (b)) | |
1771 | continue_reading_p = 0; | |
1772 | } | |
1773 | } | |
976350af | 1774 | else if (! NILP (Vload_read_function)) |
84a15045 | 1775 | val = call1 (Vload_read_function, readcharfun); |
976350af | 1776 | else |
abb13b09 | 1777 | val = read_internal_start (readcharfun, Qnil, Qnil); |
078e7b4a JB |
1778 | } |
1779 | ||
4c03c46d KS |
1780 | if (!NILP (start) && continue_reading_p) |
1781 | start = Fpoint_marker (); | |
d11db2c8 RS |
1782 | |
1783 | /* Restore saved point and BEGV. */ | |
4c03c46d KS |
1784 | unbind_to (count1, Qnil); |
1785 | ||
d11db2c8 | 1786 | /* Now eval what we just read. */ |
078e7b4a | 1787 | val = (*evalfun) (val); |
f38952fe | 1788 | |
078e7b4a JB |
1789 | if (printflag) |
1790 | { | |
1791 | Vvalues = Fcons (val, Vvalues); | |
1792 | if (EQ (Vstandard_output, Qt)) | |
1793 | Fprin1 (val, Qnil); | |
1794 | else | |
1795 | Fprint (val, Qnil); | |
1796 | } | |
d11db2c8 RS |
1797 | |
1798 | first_sexp = 0; | |
078e7b4a JB |
1799 | } |
1800 | ||
8878319c | 1801 | build_load_history (sourcename, |
d11db2c8 | 1802 | stream || whole_buffer); |
b502a9a1 | 1803 | |
ae321d28 RS |
1804 | UNGCPRO; |
1805 | ||
078e7b4a JB |
1806 | unbind_to (count, Qnil); |
1807 | } | |
1808 | ||
1076254d | 1809 | DEFUN ("eval-buffer", Feval_buffer, Seval_buffer, 0, 5, "", |
5de38842 PJ |
1810 | doc: /* Execute the current buffer as Lisp code. |
1811 | Programs can pass two arguments, BUFFER and PRINTFLAG. | |
1812 | BUFFER is the buffer to evaluate (nil means use current buffer). | |
1813 | PRINTFLAG controls printing of output: | |
51d8b30e | 1814 | A value of nil means discard it; anything else is stream for print. |
5de38842 PJ |
1815 | |
1816 | If the optional third argument FILENAME is non-nil, | |
1817 | it specifies the file name to use for `load-history'. | |
1818 | The optional fourth argument UNIBYTE specifies `load-convert-to-unibyte' | |
1819 | for this invocation. | |
1820 | ||
3f9ab804 | 1821 | The optional fifth argument DO-ALLOW-PRINT, if non-nil, specifies that |
5de38842 PJ |
1822 | `print' and related functions should work normally even if PRINTFLAG is nil. |
1823 | ||
1824 | This function preserves the position of point. */) | |
1825 | (buffer, printflag, filename, unibyte, do_allow_print) | |
1076254d | 1826 | Lisp_Object buffer, printflag, filename, unibyte, do_allow_print; |
228d4b1c | 1827 | { |
aed13378 | 1828 | int count = SPECPDL_INDEX (); |
228d4b1c JA |
1829 | Lisp_Object tem, buf; |
1830 | ||
9391b698 | 1831 | if (NILP (buffer)) |
228d4b1c JA |
1832 | buf = Fcurrent_buffer (); |
1833 | else | |
9391b698 | 1834 | buf = Fget_buffer (buffer); |
dfdb645c | 1835 | if (NILP (buf)) |
13febd85 | 1836 | error ("No such buffer"); |
228d4b1c | 1837 | |
1076254d | 1838 | if (NILP (printflag) && NILP (do_allow_print)) |
228d4b1c JA |
1839 | tem = Qsymbolp; |
1840 | else | |
1841 | tem = printflag; | |
13febd85 RS |
1842 | |
1843 | if (NILP (filename)) | |
1844 | filename = XBUFFER (buf)->filename; | |
1845 | ||
3f39f996 | 1846 | specbind (Qeval_buffer_list, Fcons (buf, Veval_buffer_list)); |
228d4b1c JA |
1847 | specbind (Qstandard_output, tem); |
1848 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
bf1c0f27 | 1849 | BUF_TEMP_SET_PT (XBUFFER (buf), BUF_BEGV (XBUFFER (buf))); |
4c03c46d KS |
1850 | readevalloop (buf, 0, filename, Feval, |
1851 | !NILP (printflag), unibyte, Qnil, Qnil, Qnil); | |
cb09ab7a | 1852 | unbind_to (count, Qnil); |
228d4b1c JA |
1853 | |
1854 | return Qnil; | |
1855 | } | |
1856 | ||
976350af | 1857 | DEFUN ("eval-region", Feval_region, Seval_region, 2, 4, "r", |
5de38842 PJ |
1858 | doc: /* Execute the region as Lisp code. |
1859 | When called from programs, expects two arguments, | |
1860 | giving starting and ending indices in the current buffer | |
1861 | of the text to be executed. | |
1862 | Programs can pass third argument PRINTFLAG which controls output: | |
51d8b30e | 1863 | A value of nil means discard it; anything else is stream for printing it. |
5de38842 PJ |
1864 | Also the fourth argument READ-FUNCTION, if non-nil, is used |
1865 | instead of `read' to read each expression. It gets one argument | |
1866 | which is the input stream for reading characters. | |
1867 | ||
1868 | This function does not move point. */) | |
1869 | (start, end, printflag, read_function) | |
976350af | 1870 | Lisp_Object start, end, printflag, read_function; |
078e7b4a | 1871 | { |
aed13378 | 1872 | int count = SPECPDL_INDEX (); |
ae321d28 RS |
1873 | Lisp_Object tem, cbuf; |
1874 | ||
1875 | cbuf = Fcurrent_buffer (); | |
078e7b4a | 1876 | |
265a9e55 | 1877 | if (NILP (printflag)) |
078e7b4a JB |
1878 | tem = Qsymbolp; |
1879 | else | |
1880 | tem = printflag; | |
1881 | specbind (Qstandard_output, tem); | |
3f39f996 | 1882 | specbind (Qeval_buffer_list, Fcons (cbuf, Veval_buffer_list)); |
078e7b4a | 1883 | |
4c03c46d | 1884 | /* readevalloop calls functions which check the type of start and end. */ |
94e554db | 1885 | readevalloop (cbuf, 0, XBUFFER (cbuf)->filename, Feval, |
4c03c46d KS |
1886 | !NILP (printflag), Qnil, read_function, |
1887 | start, end); | |
078e7b4a JB |
1888 | |
1889 | return unbind_to (count, Qnil); | |
1890 | } | |
1891 | ||
078e7b4a JB |
1892 | \f |
1893 | DEFUN ("read", Fread, Sread, 0, 1, 0, | |
5de38842 PJ |
1894 | doc: /* Read one Lisp expression as text from STREAM, return as Lisp object. |
1895 | If STREAM is nil, use the value of `standard-input' (which see). | |
1896 | STREAM or the value of `standard-input' may be: | |
1897 | a buffer (read from point and advance it) | |
1898 | a marker (read from where it points and advance it) | |
1899 | a function (call it with no arguments for each character, | |
1900 | call it with a char as argument to push a char back) | |
1901 | a string (takes text from string, starting at the beginning) | |
1902 | t (read text line using minibuffer and use it, or read from | |
1903 | standard input in batch mode). */) | |
1904 | (stream) | |
5be02dff | 1905 | Lisp_Object stream; |
078e7b4a | 1906 | { |
5be02dff KH |
1907 | if (NILP (stream)) |
1908 | stream = Vstandard_input; | |
1909 | if (EQ (stream, Qt)) | |
1910 | stream = Qread_char; | |
5be02dff | 1911 | if (EQ (stream, Qread_char)) |
078e7b4a | 1912 | return Fread_minibuffer (build_string ("Lisp expression: "), Qnil); |
078e7b4a | 1913 | |
abb13b09 | 1914 | return read_internal_start (stream, Qnil, Qnil); |
078e7b4a JB |
1915 | } |
1916 | ||
1917 | DEFUN ("read-from-string", Fread_from_string, Sread_from_string, 1, 3, 0, | |
5de38842 PJ |
1918 | doc: /* Read one Lisp expression which is represented as text by STRING. |
1919 | Returns a cons: (OBJECT-READ . FINAL-STRING-INDEX). | |
1920 | START and END optionally delimit a substring of STRING from which to read; | |
1921 | they default to 0 and (length STRING) respectively. */) | |
1922 | (string, start, end) | |
078e7b4a JB |
1923 | Lisp_Object string, start, end; |
1924 | { | |
2530ceaf | 1925 | Lisp_Object ret; |
b7826503 | 1926 | CHECK_STRING (string); |
2530ceaf CW |
1927 | /* read_internal_start sets read_from_string_index. */ |
1928 | ret = read_internal_start (string, start, end); | |
5135ab39 | 1929 | return Fcons (ret, make_number (read_from_string_index)); |
abb13b09 | 1930 | } |
078e7b4a | 1931 | |
abb13b09 CW |
1932 | /* Function to set up the global context we need in toplevel read |
1933 | calls. */ | |
1934 | static Lisp_Object | |
1935 | read_internal_start (stream, start, end) | |
1936 | Lisp_Object stream; | |
1937 | Lisp_Object start; /* Only used when stream is a string. */ | |
1938 | Lisp_Object end; /* Only used when stream is a string. */ | |
1939 | { | |
1940 | Lisp_Object retval; | |
078e7b4a | 1941 | |
abb13b09 | 1942 | readchar_count = 0; |
17634846 | 1943 | new_backquote_flag = 0; |
4ad679f9 | 1944 | read_objects = Qnil; |
abb13b09 CW |
1945 | if (EQ (Vread_with_symbol_positions, Qt) |
1946 | || EQ (Vread_with_symbol_positions, stream)) | |
1947 | Vread_symbol_positions_list = Qnil; | |
1948 | ||
8f924df7 KH |
1949 | if (STRINGP (stream) |
1950 | || ((CONSP (stream) && STRINGP (XCAR (stream))))) | |
abb13b09 CW |
1951 | { |
1952 | int startval, endval; | |
8f924df7 | 1953 | Lisp_Object string; |
078e7b4a | 1954 | |
8f924df7 KH |
1955 | if (STRINGP (stream)) |
1956 | string = stream; | |
1957 | else | |
1958 | string = XCAR (stream); | |
078e7b4a | 1959 | |
abb13b09 | 1960 | if (NILP (end)) |
8f924df7 | 1961 | endval = SCHARS (string); |
abb13b09 CW |
1962 | else |
1963 | { | |
1964 | CHECK_NUMBER (end); | |
1965 | endval = XINT (end); | |
8f924df7 KH |
1966 | if (endval < 0 || endval > SCHARS (string)) |
1967 | args_out_of_range (string, end); | |
abb13b09 | 1968 | } |
17634846 | 1969 | |
abb13b09 CW |
1970 | if (NILP (start)) |
1971 | startval = 0; | |
1972 | else | |
1973 | { | |
1974 | CHECK_NUMBER (start); | |
1975 | startval = XINT (start); | |
1976 | if (startval < 0 || startval > endval) | |
8f924df7 | 1977 | args_out_of_range (string, start); |
abb13b09 CW |
1978 | } |
1979 | read_from_string_index = startval; | |
8f924df7 | 1980 | read_from_string_index_byte = string_char_to_byte (string, startval); |
abb13b09 CW |
1981 | read_from_string_limit = endval; |
1982 | } | |
177c0ea7 | 1983 | |
abb13b09 CW |
1984 | retval = read0 (stream); |
1985 | if (EQ (Vread_with_symbol_positions, Qt) | |
1986 | || EQ (Vread_with_symbol_positions, stream)) | |
1987 | Vread_symbol_positions_list = Fnreverse (Vread_symbol_positions_list); | |
1988 | return retval; | |
078e7b4a JB |
1989 | } |
1990 | \f | |
336d4a9c KS |
1991 | |
1992 | /* Signal Qinvalid_read_syntax error. | |
1993 | S is error string of length N (if > 0) */ | |
1994 | ||
1995 | static void | |
1996 | invalid_syntax (s, n) | |
1997 | const char *s; | |
1998 | int n; | |
1999 | { | |
2000 | if (!n) | |
2001 | n = strlen (s); | |
2002 | xsignal1 (Qinvalid_read_syntax, make_string (s, n)); | |
2003 | } | |
2004 | ||
2005 | ||
6428369f KH |
2006 | /* Use this for recursive reads, in contexts where internal tokens |
2007 | are not allowed. */ | |
e28552a4 | 2008 | |
078e7b4a JB |
2009 | static Lisp_Object |
2010 | read0 (readcharfun) | |
2011 | Lisp_Object readcharfun; | |
2012 | { | |
2013 | register Lisp_Object val; | |
e28552a4 | 2014 | int c; |
078e7b4a | 2015 | |
17634846 | 2016 | val = read1 (readcharfun, &c, 0); |
336d4a9c KS |
2017 | if (!c) |
2018 | return val; | |
078e7b4a | 2019 | |
336d4a9c KS |
2020 | xsignal1 (Qinvalid_read_syntax, |
2021 | Fmake_string (make_number (1), make_number (c))); | |
078e7b4a JB |
2022 | } |
2023 | \f | |
2024 | static int read_buffer_size; | |
2025 | static char *read_buffer; | |
2026 | ||
f6f79b37 | 2027 | /* Read a \-escape sequence, assuming we already read the `\'. |
8f924df7 | 2028 | If the escape sequence forces unibyte, return eight-bit char. */ |
6f7f43d5 | 2029 | |
078e7b4a | 2030 | static int |
8792be66 | 2031 | read_escape (readcharfun, stringp) |
078e7b4a | 2032 | Lisp_Object readcharfun; |
e7fc914b | 2033 | int stringp; |
078e7b4a JB |
2034 | { |
2035 | register int c = READCHAR; | |
71b169b8 EZ |
2036 | /* \u allows up to four hex digits, \U up to eight. Default to the |
2037 | behaviour for \u, and change this value in the case that \U is seen. */ | |
2038 | int unicode_hex_count = 4; | |
f6f79b37 | 2039 | |
078e7b4a JB |
2040 | switch (c) |
2041 | { | |
f3849f25 | 2042 | case -1: |
da3b886d | 2043 | end_of_file_error (); |
f3849f25 | 2044 | |
078e7b4a | 2045 | case 'a': |
265a9e55 | 2046 | return '\007'; |
078e7b4a JB |
2047 | case 'b': |
2048 | return '\b'; | |
f405a585 RS |
2049 | case 'd': |
2050 | return 0177; | |
078e7b4a JB |
2051 | case 'e': |
2052 | return 033; | |
2053 | case 'f': | |
2054 | return '\f'; | |
2055 | case 'n': | |
2056 | return '\n'; | |
2057 | case 'r': | |
2058 | return '\r'; | |
2059 | case 't': | |
2060 | return '\t'; | |
2061 | case 'v': | |
2062 | return '\v'; | |
2063 | case '\n': | |
2064 | return -1; | |
e28552a4 | 2065 | case ' ': |
e7fc914b KH |
2066 | if (stringp) |
2067 | return -1; | |
2068 | return ' '; | |
078e7b4a JB |
2069 | |
2070 | case 'M': | |
2071 | c = READCHAR; | |
2072 | if (c != '-') | |
2073 | error ("Invalid escape character syntax"); | |
2074 | c = READCHAR; | |
2075 | if (c == '\\') | |
8792be66 | 2076 | c = read_escape (readcharfun, 0); |
7bd279cd | 2077 | return c | meta_modifier; |
f405a585 RS |
2078 | |
2079 | case 'S': | |
2080 | c = READCHAR; | |
2081 | if (c != '-') | |
2082 | error ("Invalid escape character syntax"); | |
2083 | c = READCHAR; | |
2084 | if (c == '\\') | |
8792be66 | 2085 | c = read_escape (readcharfun, 0); |
7bd279cd RS |
2086 | return c | shift_modifier; |
2087 | ||
2088 | case 'H': | |
2089 | c = READCHAR; | |
2090 | if (c != '-') | |
2091 | error ("Invalid escape character syntax"); | |
2092 | c = READCHAR; | |
2093 | if (c == '\\') | |
8792be66 | 2094 | c = read_escape (readcharfun, 0); |
7bd279cd RS |
2095 | return c | hyper_modifier; |
2096 | ||
2097 | case 'A': | |
2098 | c = READCHAR; | |
2099 | if (c != '-') | |
2100 | error ("Invalid escape character syntax"); | |
2101 | c = READCHAR; | |
2102 | if (c == '\\') | |
8792be66 | 2103 | c = read_escape (readcharfun, 0); |
7bd279cd RS |
2104 | return c | alt_modifier; |
2105 | ||
2106 | case 's': | |
2107 | c = READCHAR; | |
4d7528d0 | 2108 | if (stringp || c != '-') |
010b7eac RS |
2109 | { |
2110 | UNREAD (c); | |
2111 | return ' '; | |
2112 | } | |
7bd279cd RS |
2113 | c = READCHAR; |
2114 | if (c == '\\') | |
8792be66 | 2115 | c = read_escape (readcharfun, 0); |
7bd279cd | 2116 | return c | super_modifier; |
078e7b4a JB |
2117 | |
2118 | case 'C': | |
2119 | c = READCHAR; | |
2120 | if (c != '-') | |
2121 | error ("Invalid escape character syntax"); | |
2122 | case '^': | |
2123 | c = READCHAR; | |
2124 | if (c == '\\') | |
8792be66 | 2125 | c = read_escape (readcharfun, 0); |
164d590d KH |
2126 | if ((c & ~CHAR_MODIFIER_MASK) == '?') |
2127 | return 0177 | (c & CHAR_MODIFIER_MASK); | |
2128 | else if (! SINGLE_BYTE_CHAR_P ((c & ~CHAR_MODIFIER_MASK))) | |
2129 | return c | ctrl_modifier; | |
f405a585 RS |
2130 | /* ASCII control chars are made from letters (both cases), |
2131 | as well as the non-letters within 0100...0137. */ | |
2132 | else if ((c & 0137) >= 0101 && (c & 0137) <= 0132) | |
2133 | return (c & (037 | ~0177)); | |
2134 | else if ((c & 0177) >= 0100 && (c & 0177) <= 0137) | |
2135 | return (c & (037 | ~0177)); | |
078e7b4a | 2136 | else |
7bd279cd | 2137 | return c | ctrl_modifier; |
078e7b4a JB |
2138 | |
2139 | case '0': | |
2140 | case '1': | |
2141 | case '2': | |
2142 | case '3': | |
2143 | case '4': | |
2144 | case '5': | |
2145 | case '6': | |
2146 | case '7': | |
2147 | /* An octal escape, as in ANSI C. */ | |
2148 | { | |
2149 | register int i = c - '0'; | |
2150 | register int count = 0; | |
2151 | while (++count < 3) | |
2152 | { | |
2153 | if ((c = READCHAR) >= '0' && c <= '7') | |
2154 | { | |
2155 | i *= 8; | |
2156 | i += c - '0'; | |
2157 | } | |
2158 | else | |
2159 | { | |
2160 | UNREAD (c); | |
2161 | break; | |
2162 | } | |
2163 | } | |
177c0ea7 | 2164 | |
8f924df7 | 2165 | if (i >= 0x80 && i < 0x100) |
8792be66 | 2166 | i = BYTE8_TO_CHAR (i); |
078e7b4a JB |
2167 | return i; |
2168 | } | |
2169 | ||
2170 | case 'x': | |
2171 | /* A hex escape, as in ANSI C. */ | |
2172 | { | |
2173 | int i = 0; | |
1571601b | 2174 | int count = 0; |
078e7b4a JB |
2175 | while (1) |
2176 | { | |
2177 | c = READCHAR; | |
2178 | if (c >= '0' && c <= '9') | |
2179 | { | |
2180 | i *= 16; | |
2181 | i += c - '0'; | |
2182 | } | |
2183 | else if ((c >= 'a' && c <= 'f') | |
2184 | || (c >= 'A' && c <= 'F')) | |
2185 | { | |
2186 | i *= 16; | |
2187 | if (c >= 'a' && c <= 'f') | |
2188 | i += c - 'a' + 10; | |
2189 | else | |
2190 | i += c - 'A' + 10; | |
2191 | } | |
2192 | else | |
2193 | { | |
2194 | UNREAD (c); | |
2195 | break; | |
2196 | } | |
1571601b | 2197 | count++; |
078e7b4a | 2198 | } |
f6f79b37 | 2199 | |
1571601b | 2200 | if (count < 3 && i >= 0x80) |
8792be66 | 2201 | return BYTE8_TO_CHAR (i); |
078e7b4a JB |
2202 | return i; |
2203 | } | |
2204 | ||
71b169b8 EZ |
2205 | case 'U': |
2206 | /* Post-Unicode-2.0: Up to eight hex chars. */ | |
2207 | unicode_hex_count = 8; | |
2208 | case 'u': | |
2209 | ||
2210 | /* A Unicode escape. We only permit them in strings and characters, | |
2211 | not arbitrarily in the source code, as in some other languages. */ | |
2212 | { | |
2213 | int i = 0; | |
2214 | int count = 0; | |
71b169b8 EZ |
2215 | |
2216 | while (++count <= unicode_hex_count) | |
2217 | { | |
2218 | c = READCHAR; | |
a3ac22e4 | 2219 | /* isdigit and isalpha may be locale-specific, which we don't |
71b169b8 EZ |
2220 | want. */ |
2221 | if (c >= '0' && c <= '9') i = (i << 4) + (c - '0'); | |
2222 | else if (c >= 'a' && c <= 'f') i = (i << 4) + (c - 'a') + 10; | |
2223 | else if (c >= 'A' && c <= 'F') i = (i << 4) + (c - 'A') + 10; | |
2224 | else | |
2225 | { | |
2226 | error ("Non-hex digit used for Unicode escape"); | |
2227 | break; | |
2228 | } | |
2229 | } | |
2230 | ||
7ea7f636 | 2231 | return i; |
71b169b8 EZ |
2232 | } |
2233 | ||
078e7b4a JB |
2234 | default: |
2235 | return c; | |
2236 | } | |
2237 | } | |
2238 | ||
bf5d1a17 GM |
2239 | /* Read an integer in radix RADIX using READCHARFUN to read |
2240 | characters. RADIX must be in the interval [2..36]; if it isn't, a | |
2241 | read error is signaled . Value is the integer read. Signals an | |
2242 | error if encountering invalid read syntax or if RADIX is out of | |
2243 | range. */ | |
2244 | ||
2245 | static Lisp_Object | |
2246 | read_integer (readcharfun, radix) | |
2247 | Lisp_Object readcharfun; | |
2248 | int radix; | |
2249 | { | |
5e37dc22 GM |
2250 | int ndigits = 0, invalid_p, c, sign = 0; |
2251 | EMACS_INT number = 0; | |
bf5d1a17 GM |
2252 | |
2253 | if (radix < 2 || radix > 36) | |
2254 | invalid_p = 1; | |
2255 | else | |
2256 | { | |
2257 | number = ndigits = invalid_p = 0; | |
2258 | sign = 1; | |
2259 | ||
2260 | c = READCHAR; | |
2261 | if (c == '-') | |
2262 | { | |
2263 | c = READCHAR; | |
2264 | sign = -1; | |
2265 | } | |
2266 | else if (c == '+') | |
2267 | c = READCHAR; | |
177c0ea7 | 2268 | |
bf5d1a17 GM |
2269 | while (c >= 0) |
2270 | { | |
2271 | int digit; | |
177c0ea7 | 2272 | |
bf5d1a17 GM |
2273 | if (c >= '0' && c <= '9') |
2274 | digit = c - '0'; | |
2275 | else if (c >= 'a' && c <= 'z') | |
2276 | digit = c - 'a' + 10; | |
2277 | else if (c >= 'A' && c <= 'Z') | |
2278 | digit = c - 'A' + 10; | |
2279 | else | |
b632fa48 GM |
2280 | { |
2281 | UNREAD (c); | |
2282 | break; | |
2283 | } | |
bf5d1a17 GM |
2284 | |
2285 | if (digit < 0 || digit >= radix) | |
2286 | invalid_p = 1; | |
2287 | ||
2288 | number = radix * number + digit; | |
2289 | ++ndigits; | |
2290 | c = READCHAR; | |
2291 | } | |
2292 | } | |
2293 | ||
2294 | if (ndigits == 0 || invalid_p) | |
2295 | { | |
2296 | char buf[50]; | |
2297 | sprintf (buf, "integer, radix %d", radix); | |
336d4a9c | 2298 | invalid_syntax (buf, 0); |
bf5d1a17 GM |
2299 | } |
2300 | ||
2301 | return make_number (sign * number); | |
2302 | } | |
2303 | ||
2304 | ||
6428369f KH |
2305 | /* If the next token is ')' or ']' or '.', we store that character |
2306 | in *PCH and the return value is not interesting. Else, we store | |
17634846 RS |
2307 | zero in *PCH and we read and return one lisp object. |
2308 | ||
2309 | FIRST_IN_LIST is nonzero if this is the first element of a list. */ | |
2310 | ||
078e7b4a | 2311 | static Lisp_Object |
17634846 | 2312 | read1 (readcharfun, pch, first_in_list) |
078e7b4a | 2313 | register Lisp_Object readcharfun; |
e28552a4 | 2314 | int *pch; |
17634846 | 2315 | int first_in_list; |
078e7b4a JB |
2316 | { |
2317 | register int c; | |
4ad679f9 | 2318 | int uninterned_symbol = 0; |
1202434b | 2319 | int multibyte; |
4ad679f9 | 2320 | |
6428369f | 2321 | *pch = 0; |
8792be66 | 2322 | load_each_byte = 0; |
078e7b4a JB |
2323 | |
2324 | retry: | |
2325 | ||
1202434b | 2326 | c = READCHAR_REPORT_MULTIBYTE (&multibyte); |
9c97398c GM |
2327 | if (c < 0) |
2328 | end_of_file_error (); | |
078e7b4a JB |
2329 | |
2330 | switch (c) | |
2331 | { | |
2332 | case '(': | |
2333 | return read_list (0, readcharfun); | |
2334 | ||
2335 | case '[': | |
c15cfd1f | 2336 | return read_vector (readcharfun, 0); |
078e7b4a JB |
2337 | |
2338 | case ')': | |
2339 | case ']': | |
078e7b4a | 2340 | { |
6428369f KH |
2341 | *pch = c; |
2342 | return Qnil; | |
078e7b4a JB |
2343 | } |
2344 | ||
2345 | case '#': | |
200f684e | 2346 | c = READCHAR; |
c2390933 RS |
2347 | if (c == '^') |
2348 | { | |
2349 | c = READCHAR; | |
2350 | if (c == '[') | |
2351 | { | |
2352 | Lisp_Object tmp; | |
c15cfd1f | 2353 | tmp = read_vector (readcharfun, 0); |
d10044c5 | 2354 | if (XVECTOR (tmp)->size < CHAR_TABLE_STANDARD_SLOTS) |
c2390933 | 2355 | error ("Invalid size char-table"); |
985773c9 | 2356 | XSETPVECTYPE (XVECTOR (tmp), PVEC_CHAR_TABLE); |
c2390933 RS |
2357 | return tmp; |
2358 | } | |
3701b5de KH |
2359 | else if (c == '^') |
2360 | { | |
2361 | c = READCHAR; | |
2362 | if (c == '[') | |
2363 | { | |
2364 | Lisp_Object tmp; | |
1571601b | 2365 | int depth, size; |
8f924df7 | 2366 | |
c15cfd1f | 2367 | tmp = read_vector (readcharfun, 0); |
1571601b KH |
2368 | if (!INTEGERP (AREF (tmp, 0))) |
2369 | error ("Invalid depth in char-table"); | |
2370 | depth = XINT (AREF (tmp, 0)); | |
2371 | if (depth < 1 || depth > 3) | |
2372 | error ("Invalid depth in char-table"); | |
41482d36 | 2373 | size = XVECTOR (tmp)->size - 2; |
1571601b | 2374 | if (chartab_size [depth] != size) |
3701b5de | 2375 | error ("Invalid size char-table"); |
985773c9 | 2376 | XSETPVECTYPE (XVECTOR (tmp), PVEC_SUB_CHAR_TABLE); |
3701b5de KH |
2377 | return tmp; |
2378 | } | |
336d4a9c | 2379 | invalid_syntax ("#^^", 3); |
3701b5de | 2380 | } |
336d4a9c | 2381 | invalid_syntax ("#^", 2); |
c2390933 RS |
2382 | } |
2383 | if (c == '&') | |
2384 | { | |
2385 | Lisp_Object length; | |
2386 | length = read1 (readcharfun, pch, first_in_list); | |
2387 | c = READCHAR; | |
2388 | if (c == '"') | |
2389 | { | |
2390 | Lisp_Object tmp, val; | |
d1ca81d9 AS |
2391 | int size_in_chars |
2392 | = ((XFASTINT (length) + BOOL_VECTOR_BITS_PER_CHAR - 1) | |
2393 | / BOOL_VECTOR_BITS_PER_CHAR); | |
c2390933 RS |
2394 | |
2395 | UNREAD (c); | |
2396 | tmp = read1 (readcharfun, pch, first_in_list); | |
8792be66 | 2397 | if (STRING_MULTIBYTE (tmp) |
8f924df7 | 2398 | || (size_in_chars != SCHARS (tmp) |
8792be66 KH |
2399 | /* We used to print 1 char too many |
2400 | when the number of bits was a multiple of 8. | |
2401 | Accept such input in case it came from an old | |
2402 | version. */ | |
2403 | && ! (XFASTINT (length) | |
327719ee | 2404 | == (SCHARS (tmp) - 1) * BOOL_VECTOR_BITS_PER_CHAR))) |
336d4a9c | 2405 | invalid_syntax ("#&...", 5); |
177c0ea7 | 2406 | |
c2390933 | 2407 | val = Fmake_bool_vector (length, Qnil); |
d5db4077 | 2408 | bcopy (SDATA (tmp), XBOOL_VECTOR (val)->data, |
c2390933 | 2409 | size_in_chars); |
67d3b149 | 2410 | /* Clear the extraneous bits in the last byte. */ |
d1ca81d9 | 2411 | if (XINT (length) != size_in_chars * BOOL_VECTOR_BITS_PER_CHAR) |
67d3b149 | 2412 | XBOOL_VECTOR (val)->data[size_in_chars - 1] |
d1ca81d9 | 2413 | &= (1 << (XINT (length) % BOOL_VECTOR_BITS_PER_CHAR)) - 1; |
c2390933 RS |
2414 | return val; |
2415 | } | |
336d4a9c | 2416 | invalid_syntax ("#&...", 5); |
c2390933 | 2417 | } |
200f684e RS |
2418 | if (c == '[') |
2419 | { | |
2420 | /* Accept compiled functions at read-time so that we don't have to | |
2421 | build them using function calls. */ | |
748ef62f | 2422 | Lisp_Object tmp; |
c15cfd1f | 2423 | tmp = read_vector (readcharfun, 1); |
748ef62f RS |
2424 | return Fmake_byte_code (XVECTOR (tmp)->size, |
2425 | XVECTOR (tmp)->contents); | |
200f684e | 2426 | } |
748ef62f RS |
2427 | if (c == '(') |
2428 | { | |
2429 | Lisp_Object tmp; | |
2430 | struct gcpro gcpro1; | |
e28552a4 | 2431 | int ch; |
748ef62f RS |
2432 | |
2433 | /* Read the string itself. */ | |
17634846 | 2434 | tmp = read1 (readcharfun, &ch, 0); |
6428369f | 2435 | if (ch != 0 || !STRINGP (tmp)) |
336d4a9c | 2436 | invalid_syntax ("#", 1); |
748ef62f RS |
2437 | GCPRO1 (tmp); |
2438 | /* Read the intervals and their properties. */ | |
2439 | while (1) | |
2440 | { | |
2441 | Lisp_Object beg, end, plist; | |
2442 | ||
17634846 | 2443 | beg = read1 (readcharfun, &ch, 0); |
7ee3bd7b | 2444 | end = plist = Qnil; |
6428369f KH |
2445 | if (ch == ')') |
2446 | break; | |
2447 | if (ch == 0) | |
17634846 | 2448 | end = read1 (readcharfun, &ch, 0); |
6428369f | 2449 | if (ch == 0) |
17634846 | 2450 | plist = read1 (readcharfun, &ch, 0); |
6428369f | 2451 | if (ch) |
336d4a9c | 2452 | invalid_syntax ("Invalid string property list", 0); |
748ef62f RS |
2453 | Fset_text_properties (beg, end, plist, tmp); |
2454 | } | |
2455 | UNGCPRO; | |
2456 | return tmp; | |
2457 | } | |
177c0ea7 | 2458 | |
20ea2964 RS |
2459 | /* #@NUMBER is used to skip NUMBER following characters. |
2460 | That's used in .elc files to skip over doc strings | |
2461 | and function definitions. */ | |
2462 | if (c == '@') | |
2463 | { | |
2464 | int i, nskip = 0; | |
2465 | ||
8792be66 | 2466 | load_each_byte = 1; |
20ea2964 RS |
2467 | /* Read a decimal integer. */ |
2468 | while ((c = READCHAR) >= 0 | |
2469 | && c >= '0' && c <= '9') | |
2470 | { | |
2471 | nskip *= 10; | |
2472 | nskip += c - '0'; | |
2473 | } | |
2474 | if (c >= 0) | |
2475 | UNREAD (c); | |
177c0ea7 | 2476 | |
8792be66 KH |
2477 | if (load_force_doc_strings |
2478 | && (EQ (readcharfun, Qget_file_char) | |
2479 | || EQ (readcharfun, Qget_emacs_mule_file_char))) | |
b2a30870 RS |
2480 | { |
2481 | /* If we are supposed to force doc strings into core right now, | |
2482 | record the last string that we skipped, | |
2483 | and record where in the file it comes from. */ | |
c15cfd1f RS |
2484 | |
2485 | /* But first exchange saved_doc_string | |
2486 | with prev_saved_doc_string, so we save two strings. */ | |
2487 | { | |
2488 | char *temp = saved_doc_string; | |
2489 | int temp_size = saved_doc_string_size; | |
68c45bf0 | 2490 | file_offset temp_pos = saved_doc_string_position; |
c15cfd1f RS |
2491 | int temp_len = saved_doc_string_length; |
2492 | ||
2493 | saved_doc_string = prev_saved_doc_string; | |
2494 | saved_doc_string_size = prev_saved_doc_string_size; | |
2495 | saved_doc_string_position = prev_saved_doc_string_position; | |
2496 | saved_doc_string_length = prev_saved_doc_string_length; | |
2497 | ||
2498 | prev_saved_doc_string = temp; | |
2499 | prev_saved_doc_string_size = temp_size; | |
2500 | prev_saved_doc_string_position = temp_pos; | |
2501 | prev_saved_doc_string_length = temp_len; | |
2502 | } | |
2503 | ||
b2a30870 RS |
2504 | if (saved_doc_string_size == 0) |
2505 | { | |
2506 | saved_doc_string_size = nskip + 100; | |
11938f10 | 2507 | saved_doc_string = (char *) xmalloc (saved_doc_string_size); |
b2a30870 RS |
2508 | } |
2509 | if (nskip > saved_doc_string_size) | |
2510 | { | |
2511 | saved_doc_string_size = nskip + 100; | |
11938f10 KH |
2512 | saved_doc_string = (char *) xrealloc (saved_doc_string, |
2513 | saved_doc_string_size); | |
b2a30870 RS |
2514 | } |
2515 | ||
68c45bf0 | 2516 | saved_doc_string_position = file_tell (instream); |
b2a30870 RS |
2517 | |
2518 | /* Copy that many characters into saved_doc_string. */ | |
2519 | for (i = 0; i < nskip && c >= 0; i++) | |
2520 | saved_doc_string[i] = c = READCHAR; | |
2521 | ||
2522 | saved_doc_string_length = i; | |
2523 | } | |
2524 | else | |
b2a30870 RS |
2525 | { |
2526 | /* Skip that many characters. */ | |
2527 | for (i = 0; i < nskip && c >= 0; i++) | |
2528 | c = READCHAR; | |
2529 | } | |
d49f0c1a | 2530 | |
8792be66 | 2531 | load_each_byte = 0; |
20ea2964 RS |
2532 | goto retry; |
2533 | } | |
e2518d02 RS |
2534 | if (c == '!') |
2535 | { | |
2536 | /* #! appears at the beginning of an executable file. | |
2537 | Skip the first line. */ | |
225c7a07 | 2538 | while (c != '\n' && c >= 0) |
e2518d02 RS |
2539 | c = READCHAR; |
2540 | goto retry; | |
2541 | } | |
20ea2964 RS |
2542 | if (c == '$') |
2543 | return Vload_file_name; | |
2b6cae0c RS |
2544 | if (c == '\'') |
2545 | return Fcons (Qfunction, Fcons (read0 (readcharfun), Qnil)); | |
4ad679f9 EN |
2546 | /* #:foo is the uninterned symbol named foo. */ |
2547 | if (c == ':') | |
2548 | { | |
2549 | uninterned_symbol = 1; | |
2550 | c = READCHAR; | |
2551 | goto default_label; | |
2552 | } | |
2553 | /* Reader forms that can reuse previously read objects. */ | |
2554 | if (c >= '0' && c <= '9') | |
2555 | { | |
2556 | int n = 0; | |
2557 | Lisp_Object tem; | |
2b6cae0c | 2558 | |
4ad679f9 EN |
2559 | /* Read a non-negative integer. */ |
2560 | while (c >= '0' && c <= '9') | |
2561 | { | |
2562 | n *= 10; | |
2563 | n += c - '0'; | |
2564 | c = READCHAR; | |
2565 | } | |
2566 | /* #n=object returns object, but associates it with n for #n#. */ | |
2567 | if (c == '=') | |
2568 | { | |
9e062b6c RS |
2569 | /* Make a placeholder for #n# to use temporarily */ |
2570 | Lisp_Object placeholder; | |
2571 | Lisp_Object cell; | |
2572 | ||
2573 | placeholder = Fcons(Qnil, Qnil); | |
2574 | cell = Fcons (make_number (n), placeholder); | |
2575 | read_objects = Fcons (cell, read_objects); | |
2576 | ||
2577 | /* Read the object itself. */ | |
4ad679f9 | 2578 | tem = read0 (readcharfun); |
9e062b6c RS |
2579 | |
2580 | /* Now put it everywhere the placeholder was... */ | |
2581 | substitute_object_in_subtree (tem, placeholder); | |
2582 | ||
2583 | /* ...and #n# will use the real value from now on. */ | |
2584 | Fsetcdr (cell, tem); | |
177c0ea7 | 2585 | |
4ad679f9 EN |
2586 | return tem; |
2587 | } | |
2588 | /* #n# returns a previously read object. */ | |
2589 | if (c == '#') | |
2590 | { | |
2591 | tem = Fassq (make_number (n), read_objects); | |
2592 | if (CONSP (tem)) | |
2593 | return XCDR (tem); | |
2594 | /* Fall through to error message. */ | |
2595 | } | |
bf5d1a17 GM |
2596 | else if (c == 'r' || c == 'R') |
2597 | return read_integer (readcharfun, n); | |
177c0ea7 | 2598 | |
4ad679f9 EN |
2599 | /* Fall through to error message. */ |
2600 | } | |
bf5d1a17 GM |
2601 | else if (c == 'x' || c == 'X') |
2602 | return read_integer (readcharfun, 16); | |
2603 | else if (c == 'o' || c == 'O') | |
2604 | return read_integer (readcharfun, 8); | |
2605 | else if (c == 'b' || c == 'B') | |
2606 | return read_integer (readcharfun, 2); | |
20ea2964 | 2607 | |
200f684e | 2608 | UNREAD (c); |
336d4a9c | 2609 | invalid_syntax ("#", 1); |
078e7b4a JB |
2610 | |
2611 | case ';': | |
2612 | while ((c = READCHAR) >= 0 && c != '\n'); | |
2613 | goto retry; | |
2614 | ||
2615 | case '\'': | |
2616 | { | |
2617 | return Fcons (Qquote, Fcons (read0 (readcharfun), Qnil)); | |
2618 | } | |
2619 | ||
17634846 RS |
2620 | case '`': |
2621 | if (first_in_list) | |
9ecb827b SM |
2622 | { |
2623 | Vold_style_backquotes = Qt; | |
2624 | goto default_label; | |
2625 | } | |
17634846 RS |
2626 | else |
2627 | { | |
2628 | Lisp_Object value; | |
2629 | ||
0ffbbdeb | 2630 | new_backquote_flag++; |
17634846 | 2631 | value = read0 (readcharfun); |
0ffbbdeb | 2632 | new_backquote_flag--; |
17634846 RS |
2633 | |
2634 | return Fcons (Qbackquote, Fcons (value, Qnil)); | |
2635 | } | |
2636 | ||
2637 | case ',': | |
2638 | if (new_backquote_flag) | |
2639 | { | |
2640 | Lisp_Object comma_type = Qnil; | |
2641 | Lisp_Object value; | |
2642 | int ch = READCHAR; | |
2643 | ||
2644 | if (ch == '@') | |
2645 | comma_type = Qcomma_at; | |
2646 | else if (ch == '.') | |
2647 | comma_type = Qcomma_dot; | |
2648 | else | |
2649 | { | |
2650 | if (ch >= 0) UNREAD (ch); | |
2651 | comma_type = Qcomma; | |
2652 | } | |
2653 | ||
0ffbbdeb | 2654 | new_backquote_flag--; |
17634846 | 2655 | value = read0 (readcharfun); |
0ffbbdeb | 2656 | new_backquote_flag++; |
17634846 RS |
2657 | return Fcons (comma_type, Fcons (value, Qnil)); |
2658 | } | |
2659 | else | |
9ecb827b SM |
2660 | { |
2661 | Vold_style_backquotes = Qt; | |
2662 | goto default_label; | |
2663 | } | |
17634846 | 2664 | |
078e7b4a JB |
2665 | case '?': |
2666 | { | |
8792be66 | 2667 | int modifiers; |
df9c2be7 KS |
2668 | int next_char; |
2669 | int ok; | |
f6f79b37 | 2670 | |
078e7b4a | 2671 | c = READCHAR; |
9c97398c GM |
2672 | if (c < 0) |
2673 | end_of_file_error (); | |
078e7b4a | 2674 | |
b9284371 KS |
2675 | /* Accept `single space' syntax like (list ? x) where the |
2676 | whitespace character is SPC or TAB. | |
2677 | Other literal whitespace like NL, CR, and FF are not accepted, | |
2678 | as there are well-established escape sequences for these. */ | |
2679 | if (c == ' ' || c == '\t') | |
2680 | return make_number (c); | |
2681 | ||
078e7b4a | 2682 | if (c == '\\') |
8792be66 KH |
2683 | c = read_escape (readcharfun, 0); |
2684 | modifiers = c & CHAR_MODIFIER_MASK; | |
2685 | c &= ~CHAR_MODIFIER_MASK; | |
2686 | if (CHAR_BYTE8_P (c)) | |
2687 | c = CHAR_TO_BYTE8 (c); | |
2688 | c |= modifiers; | |
078e7b4a | 2689 | |
df9c2be7 KS |
2690 | next_char = READCHAR; |
2691 | if (next_char == '.') | |
2692 | { | |
2693 | /* Only a dotted-pair dot is valid after a char constant. */ | |
2694 | int next_next_char = READCHAR; | |
2695 | UNREAD (next_next_char); | |
2696 | ||
2697 | ok = (next_next_char <= 040 | |
e613ea97 KH |
2698 | || (next_next_char < 0200 |
2699 | && (index ("\"';([#?", next_next_char) | |
2700 | || (!first_in_list && next_next_char == '`') | |
2701 | || (new_backquote_flag && next_next_char == ',')))); | |
df9c2be7 KS |
2702 | } |
2703 | else | |
2704 | { | |
2705 | ok = (next_char <= 040 | |
e613ea97 KH |
2706 | || (next_char < 0200 |
2707 | && (index ("\"';()[]#?", next_char) | |
2708 | || (!first_in_list && next_char == '`') | |
2709 | || (new_backquote_flag && next_char == ',')))); | |
df9c2be7 KS |
2710 | } |
2711 | UNREAD (next_char); | |
336d4a9c KS |
2712 | if (ok) |
2713 | return make_number (c); | |
37cd4238 | 2714 | |
336d4a9c | 2715 | invalid_syntax ("?", 1); |
078e7b4a JB |
2716 | } |
2717 | ||
00a9a935 | 2718 | case '"': |
078e7b4a | 2719 | { |
a742d646 GM |
2720 | char *p = read_buffer; |
2721 | char *end = read_buffer + read_buffer_size; | |
078e7b4a | 2722 | register int c; |
1571601b KH |
2723 | /* Nonzero if we saw an escape sequence specifying |
2724 | a multibyte character. */ | |
e7fc914b | 2725 | int force_multibyte = 0; |
1571601b | 2726 | /* Nonzero if we saw an escape sequence specifying |
e7fc914b KH |
2727 | a single-byte character. */ |
2728 | int force_singlebyte = 0; | |
078e7b4a | 2729 | int cancel = 0; |
5150eeec | 2730 | int nchars = 0; |
078e7b4a JB |
2731 | |
2732 | while ((c = READCHAR) >= 0 | |
2733 | && c != '\"') | |
2734 | { | |
449fea39 | 2735 | if (end - p < MAX_MULTIBYTE_LENGTH) |
078e7b4a | 2736 | { |
5d65df0d GM |
2737 | int offset = p - read_buffer; |
2738 | read_buffer = (char *) xrealloc (read_buffer, | |
2739 | read_buffer_size *= 2); | |
2740 | p = read_buffer + offset; | |
078e7b4a JB |
2741 | end = read_buffer + read_buffer_size; |
2742 | } | |
bed23cb2 | 2743 | |
078e7b4a | 2744 | if (c == '\\') |
03e88613 | 2745 | { |
1571601b | 2746 | int modifiers; |
f6f79b37 | 2747 | |
8792be66 | 2748 | c = read_escape (readcharfun, 1); |
bed23cb2 RS |
2749 | |
2750 | /* C is -1 if \ newline has just been seen */ | |
2751 | if (c == -1) | |
03e88613 | 2752 | { |
bed23cb2 RS |
2753 | if (p == read_buffer) |
2754 | cancel = 1; | |
03e88613 RS |
2755 | continue; |
2756 | } | |
bed23cb2 | 2757 | |
1571601b KH |
2758 | modifiers = c & CHAR_MODIFIER_MASK; |
2759 | c = c & ~CHAR_MODIFIER_MASK; | |
2760 | ||
8792be66 | 2761 | if (CHAR_BYTE8_P (c)) |
e7fc914b | 2762 | force_singlebyte = 1; |
8792be66 | 2763 | else if (! ASCII_CHAR_P (c)) |
f6f79b37 | 2764 | force_multibyte = 1; |
8792be66 | 2765 | else /* i.e. ASCII_CHAR_P (c) */ |
1571601b KH |
2766 | { |
2767 | /* Allow `\C- ' and `\C-?'. */ | |
2768 | if (modifiers == CHAR_CTL) | |
2769 | { | |
2770 | if (c == ' ') | |
2771 | c = 0, modifiers = 0; | |
2772 | else if (c == '?') | |
2773 | c = 127, modifiers = 0; | |
2774 | } | |
2775 | if (modifiers & CHAR_SHIFT) | |
2776 | { | |
2777 | /* Shift modifier is valid only with [A-Za-z]. */ | |
2778 | if (c >= 'A' && c <= 'Z') | |
2779 | modifiers &= ~CHAR_SHIFT; | |
2780 | else if (c >= 'a' && c <= 'z') | |
2781 | c -= ('a' - 'A'), modifiers &= ~CHAR_SHIFT; | |
2782 | } | |
2783 | ||
2784 | if (modifiers & CHAR_META) | |
2785 | { | |
2786 | /* Move the meta bit to the right place for a | |
2787 | string. */ | |
2788 | modifiers &= ~CHAR_META; | |
2789 | c = BYTE8_TO_CHAR (c | 0x80); | |
2790 | force_singlebyte = 1; | |
2791 | } | |
2792 | } | |
5150eeec | 2793 | |
1571601b KH |
2794 | /* Any modifiers remaining are invalid. */ |
2795 | if (modifiers) | |
2796 | error ("Invalid modifier in string"); | |
2797 | p += CHAR_STRING (c, (unsigned char *) p); | |
078e7b4a | 2798 | } |
8792be66 | 2799 | else |
5150eeec | 2800 | { |
1571601b | 2801 | p += CHAR_STRING (c, (unsigned char *) p); |
988f7a0c KH |
2802 | if (CHAR_BYTE8_P (c)) |
2803 | force_singlebyte = 1; | |
2804 | else if (! ASCII_CHAR_P (c)) | |
2805 | force_multibyte = 1; | |
f943104a | 2806 | } |
5150eeec | 2807 | nchars++; |
078e7b4a | 2808 | } |
5150eeec | 2809 | |
6f7f43d5 | 2810 | if (c < 0) |
9c97398c | 2811 | end_of_file_error (); |
078e7b4a JB |
2812 | |
2813 | /* If purifying, and string starts with \ newline, | |
2814 | return zero instead. This is for doc strings | |
08564963 | 2815 | that we are really going to find in etc/DOC.nn.nn */ |
265a9e55 | 2816 | if (!NILP (Vpurify_flag) && NILP (Vdoc_file_name) && cancel) |
078e7b4a JB |
2817 | return make_number (0); |
2818 | ||
1571601b KH |
2819 | if (force_multibyte) |
2820 | /* READ_BUFFER already contains valid multibyte forms. */ | |
5150eeec | 2821 | ; |
1571601b | 2822 | else if (force_singlebyte) |
a742d646 | 2823 | { |
1571601b KH |
2824 | nchars = str_as_unibyte (read_buffer, p - read_buffer); |
2825 | p = read_buffer + nchars; | |
a742d646 | 2826 | } |
e28552a4 | 2827 | else |
1571601b | 2828 | /* Otherwise, READ_BUFFER contains only ASCII. */ |
5150eeec | 2829 | ; |
e7fc914b | 2830 | |
abb13b09 CW |
2831 | /* We want readchar_count to be the number of characters, not |
2832 | bytes. Hence we adjust for multibyte characters in the | |
2833 | string. ... But it doesn't seem to be necessary, because | |
2834 | READCHAR *does* read multibyte characters from buffers. */ | |
2835 | /* readchar_count -= (p - read_buffer) - nchars; */ | |
e7fc914b | 2836 | if (read_pure) |
491f16a2 | 2837 | return make_pure_string (read_buffer, nchars, p - read_buffer, |
1571601b KH |
2838 | (force_multibyte |
2839 | || (p - read_buffer != nchars))); | |
491f16a2 | 2840 | return make_specified_string (read_buffer, nchars, p - read_buffer, |
1571601b KH |
2841 | (force_multibyte |
2842 | || (p - read_buffer != nchars))); | |
078e7b4a JB |
2843 | } |
2844 | ||
109d300c JB |
2845 | case '.': |
2846 | { | |
109d300c JB |
2847 | int next_char = READCHAR; |
2848 | UNREAD (next_char); | |
2849 | ||
035eec48 | 2850 | if (next_char <= 040 |
e613ea97 | 2851 | || (next_char < 0200 |
95af0924 KS |
2852 | && (index ("\"';([#?", next_char) |
2853 | || (!first_in_list && next_char == '`') | |
2854 | || (new_backquote_flag && next_char == ',')))) | |
109d300c | 2855 | { |
6428369f KH |
2856 | *pch = c; |
2857 | return Qnil; | |
109d300c JB |
2858 | } |
2859 | ||
2860 | /* Otherwise, we fall through! Note that the atom-reading loop | |
2861 | below will now loop at least once, assuring that we will not | |
2862 | try to UNREAD two characters in a row. */ | |
2863 | } | |
078e7b4a | 2864 | default: |
17634846 | 2865 | default_label: |
88852d45 | 2866 | if (c <= 040) goto retry; |
adef3de7 RS |
2867 | if (c == 0x8a0) /* NBSP */ |
2868 | goto retry; | |
078e7b4a | 2869 | { |
38404229 | 2870 | char *p = read_buffer; |
481c6336 | 2871 | int quoted = 0; |
078e7b4a JB |
2872 | |
2873 | { | |
38404229 | 2874 | char *end = read_buffer + read_buffer_size; |
078e7b4a | 2875 | |
6f7f43d5 | 2876 | while (c > 040 |
adef3de7 | 2877 | && c != 0x8a0 /* NBSP */ |
e613ea97 KH |
2878 | && (c >= 0200 |
2879 | || (!index ("\"';()[]#", c) | |
2880 | && !(!first_in_list && c == '`') | |
2881 | && !(new_backquote_flag && c == ',')))) | |
078e7b4a | 2882 | { |
449fea39 | 2883 | if (end - p < MAX_MULTIBYTE_LENGTH) |
078e7b4a | 2884 | { |
5d65df0d GM |
2885 | int offset = p - read_buffer; |
2886 | read_buffer = (char *) xrealloc (read_buffer, | |
2887 | read_buffer_size *= 2); | |
2888 | p = read_buffer + offset; | |
078e7b4a JB |
2889 | end = read_buffer + read_buffer_size; |
2890 | } | |
177c0ea7 | 2891 | |
078e7b4a | 2892 | if (c == '\\') |
481c6336 RS |
2893 | { |
2894 | c = READCHAR; | |
4ab11c09 GM |
2895 | if (c == -1) |
2896 | end_of_file_error (); | |
481c6336 RS |
2897 | quoted = 1; |
2898 | } | |
6f7f43d5 | 2899 | |
1202434b KH |
2900 | if (multibyte) |
2901 | p += CHAR_STRING (c, p); | |
2902 | else | |
2903 | *p++ = c; | |
078e7b4a JB |
2904 | c = READCHAR; |
2905 | } | |
2906 | ||
2907 | if (p == end) | |
2908 | { | |
5d65df0d GM |
2909 | int offset = p - read_buffer; |
2910 | read_buffer = (char *) xrealloc (read_buffer, | |
2911 | read_buffer_size *= 2); | |
2912 | p = read_buffer + offset; | |
2913 | end = read_buffer + read_buffer_size; | |
078e7b4a JB |
2914 | } |
2915 | *p = 0; | |
2916 | if (c >= 0) | |
2917 | UNREAD (c); | |
2918 | } | |
2919 | ||
4ad679f9 | 2920 | if (!quoted && !uninterned_symbol) |
481c6336 RS |
2921 | { |
2922 | register char *p1; | |
2923 | register Lisp_Object val; | |
2924 | p1 = read_buffer; | |
2925 | if (*p1 == '+' || *p1 == '-') p1++; | |
2926 | /* Is it an integer? */ | |
2927 | if (p1 != p) | |
2928 | { | |
2929 | while (p1 != p && (c = *p1) >= '0' && c <= '9') p1++; | |
481c6336 RS |
2930 | /* Integers can have trailing decimal points. */ |
2931 | if (p1 > read_buffer && p1 < p && *p1 == '.') p1++; | |
481c6336 RS |
2932 | if (p1 == p) |
2933 | /* It is an integer. */ | |
2934 | { | |
481c6336 RS |
2935 | if (p1[-1] == '.') |
2936 | p1[-1] = '\0'; | |
74214d16 DL |
2937 | /* Fixme: if we have strtol, use that, and check |
2938 | for overflow. */ | |
faca07fb RS |
2939 | if (sizeof (int) == sizeof (EMACS_INT)) |
2940 | XSETINT (val, atoi (read_buffer)); | |
2941 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
2942 | XSETINT (val, atol (read_buffer)); | |
2943 | else | |
2944 | abort (); | |
481c6336 RS |
2945 | return val; |
2946 | } | |
2947 | } | |
481c6336 | 2948 | if (isfloat_string (read_buffer)) |
eb659c41 | 2949 | { |
a8972052 PE |
2950 | /* Compute NaN and infinities using 0.0 in a variable, |
2951 | to cope with compilers that think they are smarter | |
5e24a1f7 | 2952 | than we are. */ |
3c329963 | 2953 | double zero = 0.0; |
a8972052 PE |
2954 | |
2955 | double value; | |
2956 | ||
2957 | /* Negate the value ourselves. This treats 0, NaNs, | |
2958 | and infinity properly on IEEE floating point hosts, | |
2959 | and works around a common bug where atof ("-0.0") | |
2960 | drops the sign. */ | |
2961 | int negative = read_buffer[0] == '-'; | |
2962 | ||
2963 | /* The only way p[-1] can be 'F' or 'N', after isfloat_string | |
eb659c41 | 2964 | returns 1, is if the input ends in e+INF or e+NaN. */ |
a8972052 | 2965 | switch (p[-1]) |
eb659c41 | 2966 | { |
a8972052 PE |
2967 | case 'F': |
2968 | value = 1.0 / zero; | |
2969 | break; | |
2970 | case 'N': | |
2971 | value = zero / zero; | |
7690cbb0 RS |
2972 | |
2973 | /* If that made a "negative" NaN, negate it. */ | |
2974 | ||
2975 | { | |
2976 | int i; | |
2977 | union { double d; char c[sizeof (double)]; } u_data, u_minus_zero; | |
2978 | ||
2979 | u_data.d = value; | |
2980 | u_minus_zero.d = - 0.0; | |
2981 | for (i = 0; i < sizeof (double); i++) | |
2982 | if (u_data.c[i] & u_minus_zero.c[i]) | |
2983 | { | |
2984 | value = - value; | |
2985 | break; | |
2986 | } | |
2987 | } | |
2988 | /* Now VALUE is a positive NaN. */ | |
a8972052 PE |
2989 | break; |
2990 | default: | |
2991 | value = atof (read_buffer + negative); | |
2992 | break; | |
eb659c41 | 2993 | } |
a8972052 PE |
2994 | |
2995 | return make_float (negative ? - value : value); | |
eb659c41 | 2996 | } |
481c6336 | 2997 | } |
abb13b09 | 2998 | { |
e93abe3d KH |
2999 | Lisp_Object name, result; |
3000 | EMACS_INT nbytes = p - read_buffer; | |
3001 | EMACS_INT nchars | |
3002 | = (multibyte ? multibyte_chars_in_text (read_buffer, nbytes) | |
3003 | : nbytes); | |
3004 | ||
3005 | if (uninterned_symbol && ! NILP (Vpurify_flag)) | |
3006 | name = make_pure_string (read_buffer, nchars, nbytes, multibyte); | |
3007 | else | |
3008 | name = make_specified_string (read_buffer, nchars, nbytes,multibyte); | |
3009 | result = (uninterned_symbol ? Fmake_symbol (name) | |
3010 | : Fintern (name, Qnil)); | |
1202434b | 3011 | |
abb13b09 CW |
3012 | if (EQ (Vread_with_symbol_positions, Qt) |
3013 | || EQ (Vread_with_symbol_positions, readcharfun)) | |
177c0ea7 | 3014 | Vread_symbol_positions_list = |
abb13b09 CW |
3015 | /* Kind of a hack; this will probably fail if characters |
3016 | in the symbol name were escaped. Not really a big | |
3017 | deal, though. */ | |
f74db720 SM |
3018 | Fcons (Fcons (result, |
3019 | make_number (readchar_count | |
3020 | - XFASTINT (Flength (Fsymbol_name (result))))), | |
abb13b09 CW |
3021 | Vread_symbol_positions_list); |
3022 | return result; | |
3023 | } | |
078e7b4a JB |
3024 | } |
3025 | } | |
3026 | } | |
3027 | \f | |
9e062b6c RS |
3028 | |
3029 | /* List of nodes we've seen during substitute_object_in_subtree. */ | |
3030 | static Lisp_Object seen_list; | |
3031 | ||
3032 | static void | |
3033 | substitute_object_in_subtree (object, placeholder) | |
3034 | Lisp_Object object; | |
3035 | Lisp_Object placeholder; | |
3036 | { | |
3037 | Lisp_Object check_object; | |
3038 | ||
3039 | /* We haven't seen any objects when we start. */ | |
3040 | seen_list = Qnil; | |
3041 | ||
3042 | /* Make all the substitutions. */ | |
3043 | check_object | |
3044 | = substitute_object_recurse (object, placeholder, object); | |
177c0ea7 | 3045 | |
9e062b6c RS |
3046 | /* Clear seen_list because we're done with it. */ |
3047 | seen_list = Qnil; | |
3048 | ||
3049 | /* The returned object here is expected to always eq the | |
3050 | original. */ | |
3051 | if (!EQ (check_object, object)) | |
3052 | error ("Unexpected mutation error in reader"); | |
3053 | } | |
3054 | ||
3055 | /* Feval doesn't get called from here, so no gc protection is needed. */ | |
7a3d90dc SM |
3056 | #define SUBSTITUTE(get_val, set_val) \ |
3057 | do { \ | |
3058 | Lisp_Object old_value = get_val; \ | |
3059 | Lisp_Object true_value \ | |
3060 | = substitute_object_recurse (object, placeholder, \ | |
3061 | old_value); \ | |
3062 | \ | |
3063 | if (!EQ (old_value, true_value)) \ | |
3064 | { \ | |
3065 | set_val; \ | |
3066 | } \ | |
3067 | } while (0) | |
9e062b6c RS |
3068 | |
3069 | static Lisp_Object | |
3070 | substitute_object_recurse (object, placeholder, subtree) | |
3071 | Lisp_Object object; | |
3072 | Lisp_Object placeholder; | |
3073 | Lisp_Object subtree; | |
3074 | { | |
3075 | /* If we find the placeholder, return the target object. */ | |
3076 | if (EQ (placeholder, subtree)) | |
3077 | return object; | |
3078 | ||
3079 | /* If we've been to this node before, don't explore it again. */ | |
3080 | if (!EQ (Qnil, Fmemq (subtree, seen_list))) | |
3081 | return subtree; | |
3082 | ||
3083 | /* If this node can be the entry point to a cycle, remember that | |
3084 | we've seen it. It can only be such an entry point if it was made | |
3085 | by #n=, which means that we can find it as a value in | |
3086 | read_objects. */ | |
3087 | if (!EQ (Qnil, Frassq (subtree, read_objects))) | |
3088 | seen_list = Fcons (subtree, seen_list); | |
177c0ea7 | 3089 | |
9e062b6c RS |
3090 | /* Recurse according to subtree's type. |
3091 | Every branch must return a Lisp_Object. */ | |
3092 | switch (XTYPE (subtree)) | |
3093 | { | |
3094 | case Lisp_Vectorlike: | |
3095 | { | |
7a3d90dc SM |
3096 | int i, length = 0; |
3097 | if (BOOL_VECTOR_P (subtree)) | |
3098 | return subtree; /* No sub-objects anyway. */ | |
3099 | else if (CHAR_TABLE_P (subtree) || SUB_CHAR_TABLE_P (subtree) | |
3100 | || COMPILEDP (subtree)) | |
3101 | length = ASIZE (subtree) & PSEUDOVECTOR_SIZE_MASK; | |
3102 | else if (VECTORP (subtree)) | |
3103 | length = ASIZE (subtree); | |
3104 | else | |
3105 | /* An unknown pseudovector may contain non-Lisp fields, so we | |
3106 | can't just blindly traverse all its fields. We used to call | |
3107 | `Flength' which signalled `sequencep', so I just preserved this | |
3108 | behavior. */ | |
3109 | wrong_type_argument (Qsequencep, subtree); | |
3110 | ||
9e062b6c | 3111 | for (i = 0; i < length; i++) |
7a3d90dc SM |
3112 | SUBSTITUTE (AREF (subtree, i), |
3113 | ASET (subtree, i, true_value)); | |
9e062b6c RS |
3114 | return subtree; |
3115 | } | |
3116 | ||
3117 | case Lisp_Cons: | |
3118 | { | |
7a3d90dc SM |
3119 | SUBSTITUTE (XCAR (subtree), |
3120 | XSETCAR (subtree, true_value)); | |
3121 | SUBSTITUTE (XCDR (subtree), | |
3122 | XSETCDR (subtree, true_value)); | |
9e062b6c RS |
3123 | return subtree; |
3124 | } | |
3125 | ||
9e062b6c RS |
3126 | case Lisp_String: |
3127 | { | |
3128 | /* Check for text properties in each interval. | |
e61b9b87 | 3129 | substitute_in_interval contains part of the logic. */ |
9e062b6c | 3130 | |
d5db4077 | 3131 | INTERVAL root_interval = STRING_INTERVALS (subtree); |
9e062b6c | 3132 | Lisp_Object arg = Fcons (object, placeholder); |
177c0ea7 | 3133 | |
0d74b006 SM |
3134 | traverse_intervals_noorder (root_interval, |
3135 | &substitute_in_interval, arg); | |
9e062b6c RS |
3136 | |
3137 | return subtree; | |
3138 | } | |
9e062b6c RS |
3139 | |
3140 | /* Other types don't recurse any further. */ | |
3141 | default: | |
3142 | return subtree; | |
3143 | } | |
3144 | } | |
3145 | ||
3146 | /* Helper function for substitute_object_recurse. */ | |
3147 | static void | |
3148 | substitute_in_interval (interval, arg) | |
3149 | INTERVAL interval; | |
3150 | Lisp_Object arg; | |
3151 | { | |
3152 | Lisp_Object object = Fcar (arg); | |
3153 | Lisp_Object placeholder = Fcdr (arg); | |
3154 | ||
3155 | SUBSTITUTE(interval->plist, interval->plist = true_value); | |
3156 | } | |
3157 | ||
3158 | \f | |
078e7b4a JB |
3159 | #define LEAD_INT 1 |
3160 | #define DOT_CHAR 2 | |
3161 | #define TRAIL_INT 4 | |
3162 | #define E_CHAR 8 | |
3163 | #define EXP_INT 16 | |
3164 | ||
3165 | int | |
3166 | isfloat_string (cp) | |
3167 | register char *cp; | |
3168 | { | |
c1a2f60a | 3169 | register int state; |
177c0ea7 | 3170 | |
d8578e58 RS |
3171 | char *start = cp; |
3172 | ||
078e7b4a JB |
3173 | state = 0; |
3174 | if (*cp == '+' || *cp == '-') | |
3175 | cp++; | |
3176 | ||
075027b1 | 3177 | if (*cp >= '0' && *cp <= '9') |
078e7b4a JB |
3178 | { |
3179 | state |= LEAD_INT; | |
075027b1 RS |
3180 | while (*cp >= '0' && *cp <= '9') |
3181 | cp++; | |
078e7b4a JB |
3182 | } |
3183 | if (*cp == '.') | |
3184 | { | |
3185 | state |= DOT_CHAR; | |
3186 | cp++; | |
3187 | } | |
075027b1 | 3188 | if (*cp >= '0' && *cp <= '9') |
078e7b4a JB |
3189 | { |
3190 | state |= TRAIL_INT; | |
075027b1 | 3191 | while (*cp >= '0' && *cp <= '9') |
078e7b4a JB |
3192 | cp++; |
3193 | } | |
a35f88bf | 3194 | if (*cp == 'e' || *cp == 'E') |
078e7b4a JB |
3195 | { |
3196 | state |= E_CHAR; | |
3197 | cp++; | |
e73997a1 RS |
3198 | if (*cp == '+' || *cp == '-') |
3199 | cp++; | |
078e7b4a | 3200 | } |
078e7b4a | 3201 | |
075027b1 | 3202 | if (*cp >= '0' && *cp <= '9') |
078e7b4a JB |
3203 | { |
3204 | state |= EXP_INT; | |
075027b1 | 3205 | while (*cp >= '0' && *cp <= '9') |
078e7b4a JB |
3206 | cp++; |
3207 | } | |
d8578e58 RS |
3208 | else if (cp == start) |
3209 | ; | |
eb659c41 RS |
3210 | else if (cp[-1] == '+' && cp[0] == 'I' && cp[1] == 'N' && cp[2] == 'F') |
3211 | { | |
3212 | state |= EXP_INT; | |
3213 | cp += 3; | |
3214 | } | |
3215 | else if (cp[-1] == '+' && cp[0] == 'N' && cp[1] == 'a' && cp[2] == 'N') | |
3216 | { | |
3217 | state |= EXP_INT; | |
3218 | cp += 3; | |
3219 | } | |
3220 | ||
37579d7c | 3221 | return (((*cp == 0) || (*cp == ' ') || (*cp == '\t') || (*cp == '\n') || (*cp == '\r') || (*cp == '\f')) |
078e7b4a | 3222 | && (state == (LEAD_INT|DOT_CHAR|TRAIL_INT) |
151bdc83 | 3223 | || state == (DOT_CHAR|TRAIL_INT) |
078e7b4a | 3224 | || state == (LEAD_INT|E_CHAR|EXP_INT) |
151bdc83 JB |
3225 | || state == (LEAD_INT|DOT_CHAR|TRAIL_INT|E_CHAR|EXP_INT) |
3226 | || state == (DOT_CHAR|TRAIL_INT|E_CHAR|EXP_INT))); | |
078e7b4a | 3227 | } |
cc94f3b2 | 3228 | |
078e7b4a JB |
3229 | \f |
3230 | static Lisp_Object | |
c15cfd1f | 3231 | read_vector (readcharfun, bytecodeflag) |
078e7b4a | 3232 | Lisp_Object readcharfun; |
c15cfd1f | 3233 | int bytecodeflag; |
078e7b4a JB |
3234 | { |
3235 | register int i; | |
3236 | register int size; | |
3237 | register Lisp_Object *ptr; | |
c15cfd1f | 3238 | register Lisp_Object tem, item, vector; |
078e7b4a JB |
3239 | register struct Lisp_Cons *otem; |
3240 | Lisp_Object len; | |
3241 | ||
3242 | tem = read_list (1, readcharfun); | |
3243 | len = Flength (tem); | |
3244 | vector = (read_pure ? make_pure_vector (XINT (len)) : Fmake_vector (len, Qnil)); | |
3245 | ||
078e7b4a JB |
3246 | size = XVECTOR (vector)->size; |
3247 | ptr = XVECTOR (vector)->contents; | |
3248 | for (i = 0; i < size; i++) | |
3249 | { | |
c15cfd1f RS |
3250 | item = Fcar (tem); |
3251 | /* If `load-force-doc-strings' is t when reading a lazily-loaded | |
3252 | bytecode object, the docstring containing the bytecode and | |
3253 | constants values must be treated as unibyte and passed to | |
3254 | Fread, to get the actual bytecode string and constants vector. */ | |
3255 | if (bytecodeflag && load_force_doc_strings) | |
3256 | { | |
3257 | if (i == COMPILED_BYTECODE) | |
3258 | { | |
3259 | if (!STRINGP (item)) | |
6fa2b890 | 3260 | error ("Invalid byte code"); |
c15cfd1f RS |
3261 | |
3262 | /* Delay handling the bytecode slot until we know whether | |
3263 | it is lazily-loaded (we can tell by whether the | |
3264 | constants slot is nil). */ | |
3265 | ptr[COMPILED_CONSTANTS] = item; | |
3266 | item = Qnil; | |
3267 | } | |
3268 | else if (i == COMPILED_CONSTANTS) | |
3269 | { | |
3270 | Lisp_Object bytestr = ptr[COMPILED_CONSTANTS]; | |
3271 | ||
3272 | if (NILP (item)) | |
3273 | { | |
3274 | /* Coerce string to unibyte (like string-as-unibyte, | |
3275 | but without generating extra garbage and | |
3276 | guaranteeing no change in the contents). */ | |
bee91904 | 3277 | STRING_SET_CHARS (bytestr, SBYTES (bytestr)); |
d5db4077 | 3278 | STRING_SET_UNIBYTE (bytestr); |
c15cfd1f | 3279 | |
8792be66 | 3280 | item = Fread (Fcons (bytestr, readcharfun)); |
c15cfd1f | 3281 | if (!CONSP (item)) |
6fa2b890 | 3282 | error ("Invalid byte code"); |
c15cfd1f RS |
3283 | |
3284 | otem = XCONS (item); | |
c1d497be KR |
3285 | bytestr = XCAR (item); |
3286 | item = XCDR (item); | |
c15cfd1f RS |
3287 | free_cons (otem); |
3288 | } | |
3289 | ||
3290 | /* Now handle the bytecode slot. */ | |
3291 | ptr[COMPILED_BYTECODE] = read_pure ? Fpurecopy (bytestr) : bytestr; | |
3292 | } | |
8792be66 KH |
3293 | else if (i == COMPILED_DOC_STRING |
3294 | && STRINGP (item) | |
3295 | && ! STRING_MULTIBYTE (item)) | |
3296 | { | |
3297 | if (EQ (readcharfun, Qget_emacs_mule_file_char)) | |
3298 | item = Fdecode_coding_string (item, Qemacs_mule, Qnil, Qnil); | |
3299 | else | |
3300 | item = Fstring_as_multibyte (item); | |
3301 | } | |
c15cfd1f RS |
3302 | } |
3303 | ptr[i] = read_pure ? Fpurecopy (item) : item; | |
078e7b4a JB |
3304 | otem = XCONS (tem); |
3305 | tem = Fcdr (tem); | |
3306 | free_cons (otem); | |
3307 | } | |
3308 | return vector; | |
3309 | } | |
177c0ea7 | 3310 | |
6f7f43d5 RS |
3311 | /* FLAG = 1 means check for ] to terminate rather than ) and . |
3312 | FLAG = -1 means check for starting with defun | |
078e7b4a JB |
3313 | and make structure pure. */ |
3314 | ||
3315 | static Lisp_Object | |
3316 | read_list (flag, readcharfun) | |
3317 | int flag; | |
3318 | register Lisp_Object readcharfun; | |
3319 | { | |
3320 | /* -1 means check next element for defun, | |
3321 | 0 means don't check, | |
3322 | 1 means already checked and found defun. */ | |
3323 | int defunflag = flag < 0 ? -1 : 0; | |
3324 | Lisp_Object val, tail; | |
3325 | register Lisp_Object elt, tem; | |
3326 | struct gcpro gcpro1, gcpro2; | |
821d417e | 3327 | /* 0 is the normal case. |
b2a30870 | 3328 | 1 means this list is a doc reference; replace it with the number 0. |
177c0ea7 | 3329 | 2 means this list is a doc reference; replace it with the doc string. */ |
821d417e | 3330 | int doc_reference = 0; |
078e7b4a | 3331 | |
17634846 RS |
3332 | /* Initialize this to 1 if we are reading a list. */ |
3333 | int first_in_list = flag <= 0; | |
3334 | ||
078e7b4a JB |
3335 | val = Qnil; |
3336 | tail = Qnil; | |
3337 | ||
3338 | while (1) | |
3339 | { | |
e28552a4 | 3340 | int ch; |
078e7b4a | 3341 | GCPRO2 (val, tail); |
17634846 | 3342 | elt = read1 (readcharfun, &ch, first_in_list); |
078e7b4a | 3343 | UNGCPRO; |
20ea2964 | 3344 | |
17634846 RS |
3345 | first_in_list = 0; |
3346 | ||
821d417e | 3347 | /* While building, if the list starts with #$, treat it specially. */ |
20ea2964 | 3348 | if (EQ (elt, Vload_file_name) |
d49f0c1a | 3349 | && ! NILP (elt) |
821d417e RS |
3350 | && !NILP (Vpurify_flag)) |
3351 | { | |
3352 | if (NILP (Vdoc_file_name)) | |
3353 | /* We have not yet called Snarf-documentation, so assume | |
3354 | this file is described in the DOC-MM.NN file | |
3355 | and Snarf-documentation will fill in the right value later. | |
3356 | For now, replace the whole list with 0. */ | |
3357 | doc_reference = 1; | |
3358 | else | |
3359 | /* We have already called Snarf-documentation, so make a relative | |
3360 | file name for this file, so it can be found properly | |
3361 | in the installed Lisp directory. | |
3362 | We don't use Fexpand_file_name because that would make | |
3363 | the directory absolute now. */ | |
3364 | elt = concat2 (build_string ("../lisp/"), | |
3365 | Ffile_name_nondirectory (elt)); | |
3366 | } | |
b2a30870 | 3367 | else if (EQ (elt, Vload_file_name) |
d49f0c1a | 3368 | && ! NILP (elt) |
b2a30870 RS |
3369 | && load_force_doc_strings) |
3370 | doc_reference = 2; | |
20ea2964 | 3371 | |
6428369f | 3372 | if (ch) |
078e7b4a JB |
3373 | { |
3374 | if (flag > 0) | |
3375 | { | |
6428369f | 3376 | if (ch == ']') |
078e7b4a | 3377 | return val; |
336d4a9c | 3378 | invalid_syntax (") or . in a vector", 18); |
078e7b4a | 3379 | } |
6428369f | 3380 | if (ch == ')') |
078e7b4a | 3381 | return val; |
6428369f | 3382 | if (ch == '.') |
078e7b4a JB |
3383 | { |
3384 | GCPRO2 (val, tail); | |
265a9e55 | 3385 | if (!NILP (tail)) |
f5df591a | 3386 | XSETCDR (tail, read0 (readcharfun)); |
078e7b4a JB |
3387 | else |
3388 | val = read0 (readcharfun); | |
17634846 | 3389 | read1 (readcharfun, &ch, 0); |
078e7b4a | 3390 | UNGCPRO; |
6428369f | 3391 | if (ch == ')') |
821d417e RS |
3392 | { |
3393 | if (doc_reference == 1) | |
3394 | return make_number (0); | |
b2a30870 RS |
3395 | if (doc_reference == 2) |
3396 | { | |
3397 | /* Get a doc string from the file we are loading. | |
8792be66 KH |
3398 | If it's in saved_doc_string, get it from there. |
3399 | ||
3400 | Here, we don't know if the string is a | |
3401 | bytecode string or a doc string. As a | |
3402 | bytecode string must be unibyte, we always | |
3403 | return a unibyte string. If it is actually a | |
3404 | doc string, caller must make it | |
3405 | multibyte. */ | |
8f924df7 | 3406 | |
c1d497be | 3407 | int pos = XINT (XCDR (val)); |
c15cfd1f RS |
3408 | /* Position is negative for user variables. */ |
3409 | if (pos < 0) pos = -pos; | |
b2a30870 RS |
3410 | if (pos >= saved_doc_string_position |
3411 | && pos < (saved_doc_string_position | |
3412 | + saved_doc_string_length)) | |
3413 | { | |
3414 | int start = pos - saved_doc_string_position; | |
3415 | int from, to; | |
3416 | ||
3417 | /* Process quoting with ^A, | |
3418 | and find the end of the string, | |
3419 | which is marked with ^_ (037). */ | |
3420 | for (from = start, to = start; | |
3421 | saved_doc_string[from] != 037;) | |
3422 | { | |
3423 | int c = saved_doc_string[from++]; | |
3424 | if (c == 1) | |
3425 | { | |
3426 | c = saved_doc_string[from++]; | |
3427 | if (c == 1) | |
3428 | saved_doc_string[to++] = c; | |
3429 | else if (c == '0') | |
3430 | saved_doc_string[to++] = 0; | |
3431 | else if (c == '_') | |
3432 | saved_doc_string[to++] = 037; | |
3433 | } | |
3434 | else | |
3435 | saved_doc_string[to++] = c; | |
3436 | } | |
3437 | ||
8792be66 KH |
3438 | return make_unibyte_string (saved_doc_string + start, |
3439 | to - start); | |
b2a30870 | 3440 | } |
c15cfd1f RS |
3441 | /* Look in prev_saved_doc_string the same way. */ |
3442 | else if (pos >= prev_saved_doc_string_position | |
3443 | && pos < (prev_saved_doc_string_position | |
3444 | + prev_saved_doc_string_length)) | |
3445 | { | |
3446 | int start = pos - prev_saved_doc_string_position; | |
3447 | int from, to; | |
3448 | ||
3449 | /* Process quoting with ^A, | |
3450 | and find the end of the string, | |
3451 | which is marked with ^_ (037). */ | |
3452 | for (from = start, to = start; | |
3453 | prev_saved_doc_string[from] != 037;) | |
3454 | { | |
3455 | int c = prev_saved_doc_string[from++]; | |
3456 | if (c == 1) | |
3457 | { | |
3458 | c = prev_saved_doc_string[from++]; | |
3459 | if (c == 1) | |
3460 | prev_saved_doc_string[to++] = c; | |
3461 | else if (c == '0') | |
3462 | prev_saved_doc_string[to++] = 0; | |
3463 | else if (c == '_') | |
3464 | prev_saved_doc_string[to++] = 037; | |
3465 | } | |
3466 | else | |
3467 | prev_saved_doc_string[to++] = c; | |
3468 | } | |
3469 | ||
8792be66 KH |
3470 | return make_unibyte_string (prev_saved_doc_string |
3471 | + start, | |
3472 | to - start); | |
c15cfd1f | 3473 | } |
b2a30870 | 3474 | else |
8792be66 | 3475 | return get_doc_string (val, 1, 0); |
b2a30870 RS |
3476 | } |
3477 | ||
821d417e RS |
3478 | return val; |
3479 | } | |
336d4a9c | 3480 | invalid_syntax (". in wrong context", 18); |
078e7b4a | 3481 | } |
336d4a9c | 3482 | invalid_syntax ("] in a list", 11); |
078e7b4a JB |
3483 | } |
3484 | tem = (read_pure && flag <= 0 | |
3485 | ? pure_cons (elt, Qnil) | |
3486 | : Fcons (elt, Qnil)); | |
265a9e55 | 3487 | if (!NILP (tail)) |
f5df591a | 3488 | XSETCDR (tail, tem); |
078e7b4a JB |
3489 | else |
3490 | val = tem; | |
3491 | tail = tem; | |
3492 | if (defunflag < 0) | |
3493 | defunflag = EQ (elt, Qdefun); | |
3494 | else if (defunflag > 0) | |
3495 | read_pure = 1; | |
3496 | } | |
3497 | } | |
3498 | \f | |
3499 | Lisp_Object Vobarray; | |
3500 | Lisp_Object initial_obarray; | |
3501 | ||
d007f5c8 RS |
3502 | /* oblookup stores the bucket number here, for the sake of Funintern. */ |
3503 | ||
3504 | int oblookup_last_bucket_number; | |
3505 | ||
3506 | static int hash_string (); | |
d007f5c8 RS |
3507 | |
3508 | /* Get an error if OBARRAY is not an obarray. | |
3509 | If it is one, return it. */ | |
3510 | ||
078e7b4a JB |
3511 | Lisp_Object |
3512 | check_obarray (obarray) | |
3513 | Lisp_Object obarray; | |
3514 | { | |
8878319c | 3515 | if (!VECTORP (obarray) || XVECTOR (obarray)->size == 0) |
078e7b4a JB |
3516 | { |
3517 | /* If Vobarray is now invalid, force it to be valid. */ | |
3518 | if (EQ (Vobarray, obarray)) Vobarray = initial_obarray; | |
8878319c | 3519 | wrong_type_argument (Qvectorp, obarray); |
078e7b4a JB |
3520 | } |
3521 | return obarray; | |
3522 | } | |
3523 | ||
d007f5c8 RS |
3524 | /* Intern the C string STR: return a symbol with that name, |
3525 | interned in the current obarray. */ | |
078e7b4a JB |
3526 | |
3527 | Lisp_Object | |
3528 | intern (str) | |
4b2dd274 | 3529 | const char *str; |
078e7b4a JB |
3530 | { |
3531 | Lisp_Object tem; | |
3532 | int len = strlen (str); | |
153a17b7 | 3533 | Lisp_Object obarray; |
078e7b4a | 3534 | |
153a17b7 | 3535 | obarray = Vobarray; |
cfff016d | 3536 | if (!VECTORP (obarray) || XVECTOR (obarray)->size == 0) |
078e7b4a | 3537 | obarray = check_obarray (obarray); |
e28552a4 | 3538 | tem = oblookup (obarray, str, len, len); |
cfff016d | 3539 | if (SYMBOLP (tem)) |
078e7b4a | 3540 | return tem; |
87631ef7 | 3541 | return Fintern (make_string (str, len), obarray); |
078e7b4a | 3542 | } |
4ad679f9 EN |
3543 | |
3544 | /* Create an uninterned symbol with name STR. */ | |
3545 | ||
3546 | Lisp_Object | |
3547 | make_symbol (str) | |
3548 | char *str; | |
3549 | { | |
3550 | int len = strlen (str); | |
3551 | ||
3552 | return Fmake_symbol ((!NILP (Vpurify_flag) | |
491f16a2 | 3553 | ? make_pure_string (str, len, len, 0) |
4ad679f9 EN |
3554 | : make_string (str, len))); |
3555 | } | |
d007f5c8 | 3556 | \f |
078e7b4a | 3557 | DEFUN ("intern", Fintern, Sintern, 1, 2, 0, |
5de38842 PJ |
3558 | doc: /* Return the canonical symbol whose name is STRING. |
3559 | If there is none, one is created by this function and returned. | |
3560 | A second optional argument specifies the obarray to use; | |
3561 | it defaults to the value of `obarray'. */) | |
3562 | (string, obarray) | |
9391b698 | 3563 | Lisp_Object string, obarray; |
078e7b4a JB |
3564 | { |
3565 | register Lisp_Object tem, sym, *ptr; | |
3566 | ||
265a9e55 | 3567 | if (NILP (obarray)) obarray = Vobarray; |
078e7b4a JB |
3568 | obarray = check_obarray (obarray); |
3569 | ||
b7826503 | 3570 | CHECK_STRING (string); |
078e7b4a | 3571 | |
d5db4077 KR |
3572 | tem = oblookup (obarray, SDATA (string), |
3573 | SCHARS (string), | |
3574 | SBYTES (string)); | |
cfff016d | 3575 | if (!INTEGERP (tem)) |
078e7b4a JB |
3576 | return tem; |
3577 | ||
265a9e55 | 3578 | if (!NILP (Vpurify_flag)) |
9391b698 EN |
3579 | string = Fpurecopy (string); |
3580 | sym = Fmake_symbol (string); | |
44c6c019 GM |
3581 | |
3582 | if (EQ (obarray, initial_obarray)) | |
3583 | XSYMBOL (sym)->interned = SYMBOL_INTERNED_IN_INITIAL_OBARRAY; | |
3584 | else | |
3585 | XSYMBOL (sym)->interned = SYMBOL_INTERNED; | |
078e7b4a | 3586 | |
d5db4077 | 3587 | if ((SREF (string, 0) == ':') |
a458d45d | 3588 | && EQ (obarray, initial_obarray)) |
44c6c019 GM |
3589 | { |
3590 | XSYMBOL (sym)->constant = 1; | |
3591 | XSYMBOL (sym)->value = sym; | |
3592 | } | |
a0549832 | 3593 | |
078e7b4a | 3594 | ptr = &XVECTOR (obarray)->contents[XINT (tem)]; |
cfff016d | 3595 | if (SYMBOLP (*ptr)) |
078e7b4a JB |
3596 | XSYMBOL (sym)->next = XSYMBOL (*ptr); |
3597 | else | |
3598 | XSYMBOL (sym)->next = 0; | |
3599 | *ptr = sym; | |
3600 | return sym; | |
3601 | } | |
3602 | ||
3603 | DEFUN ("intern-soft", Fintern_soft, Sintern_soft, 1, 2, 0, | |
5de38842 PJ |
3604 | doc: /* Return the canonical symbol named NAME, or nil if none exists. |
3605 | NAME may be a string or a symbol. If it is a symbol, that exact | |
3606 | symbol is searched for. | |
3607 | A second optional argument specifies the obarray to use; | |
3608 | it defaults to the value of `obarray'. */) | |
3609 | (name, obarray) | |
b55048d4 | 3610 | Lisp_Object name, obarray; |
078e7b4a | 3611 | { |
c2d47f4b | 3612 | register Lisp_Object tem, string; |
078e7b4a | 3613 | |
265a9e55 | 3614 | if (NILP (obarray)) obarray = Vobarray; |
078e7b4a JB |
3615 | obarray = check_obarray (obarray); |
3616 | ||
b55048d4 GM |
3617 | if (!SYMBOLP (name)) |
3618 | { | |
b7826503 | 3619 | CHECK_STRING (name); |
c2d47f4b | 3620 | string = name; |
b55048d4 GM |
3621 | } |
3622 | else | |
c2d47f4b | 3623 | string = SYMBOL_NAME (name); |
078e7b4a | 3624 | |
c2d47f4b | 3625 | tem = oblookup (obarray, SDATA (string), SCHARS (string), SBYTES (string)); |
b55048d4 GM |
3626 | if (INTEGERP (tem) || (SYMBOLP (name) && !EQ (name, tem))) |
3627 | return Qnil; | |
3628 | else | |
078e7b4a | 3629 | return tem; |
078e7b4a | 3630 | } |
d007f5c8 RS |
3631 | \f |
3632 | DEFUN ("unintern", Funintern, Sunintern, 1, 2, 0, | |
5de38842 PJ |
3633 | doc: /* Delete the symbol named NAME, if any, from OBARRAY. |
3634 | The value is t if a symbol was found and deleted, nil otherwise. | |
3635 | NAME may be a string or a symbol. If it is a symbol, that symbol | |
3636 | is deleted, if it belongs to OBARRAY--no other symbol is deleted. | |
3637 | OBARRAY defaults to the value of the variable `obarray'. */) | |
3638 | (name, obarray) | |
d007f5c8 RS |
3639 | Lisp_Object name, obarray; |
3640 | { | |
3641 | register Lisp_Object string, tem; | |
3642 | int hash; | |
3643 | ||
3644 | if (NILP (obarray)) obarray = Vobarray; | |
3645 | obarray = check_obarray (obarray); | |
3646 | ||
3647 | if (SYMBOLP (name)) | |
d4c83cae | 3648 | string = SYMBOL_NAME (name); |
d007f5c8 RS |
3649 | else |
3650 | { | |
b7826503 | 3651 | CHECK_STRING (name); |
d007f5c8 RS |
3652 | string = name; |
3653 | } | |
3654 | ||
d5db4077 KR |
3655 | tem = oblookup (obarray, SDATA (string), |
3656 | SCHARS (string), | |
3657 | SBYTES (string)); | |
d007f5c8 RS |
3658 | if (INTEGERP (tem)) |
3659 | return Qnil; | |
3660 | /* If arg was a symbol, don't delete anything but that symbol itself. */ | |
3661 | if (SYMBOLP (name) && !EQ (name, tem)) | |
3662 | return Qnil; | |
3663 | ||
44c6c019 GM |
3664 | XSYMBOL (tem)->interned = SYMBOL_UNINTERNED; |
3665 | XSYMBOL (tem)->constant = 0; | |
3666 | XSYMBOL (tem)->indirect_variable = 0; | |
ca69c42f | 3667 | |
d007f5c8 RS |
3668 | hash = oblookup_last_bucket_number; |
3669 | ||
3670 | if (EQ (XVECTOR (obarray)->contents[hash], tem)) | |
b2a30870 RS |
3671 | { |
3672 | if (XSYMBOL (tem)->next) | |
3673 | XSETSYMBOL (XVECTOR (obarray)->contents[hash], XSYMBOL (tem)->next); | |
3674 | else | |
3675 | XSETINT (XVECTOR (obarray)->contents[hash], 0); | |
3676 | } | |
d007f5c8 RS |
3677 | else |
3678 | { | |
3679 | Lisp_Object tail, following; | |
3680 | ||
3681 | for (tail = XVECTOR (obarray)->contents[hash]; | |
3682 | XSYMBOL (tail)->next; | |
3683 | tail = following) | |
3684 | { | |
3685 | XSETSYMBOL (following, XSYMBOL (tail)->next); | |
3686 | if (EQ (following, tem)) | |
3687 | { | |
3688 | XSYMBOL (tail)->next = XSYMBOL (following)->next; | |
3689 | break; | |
3690 | } | |
3691 | } | |
3692 | } | |
3693 | ||
3694 | return Qt; | |
3695 | } | |
3696 | \f | |
3697 | /* Return the symbol in OBARRAY whose names matches the string | |
e28552a4 RS |
3698 | of SIZE characters (SIZE_BYTE bytes) at PTR. |
3699 | If there is no such symbol in OBARRAY, return nil. | |
d007f5c8 RS |
3700 | |
3701 | Also store the bucket number in oblookup_last_bucket_number. */ | |
078e7b4a JB |
3702 | |
3703 | Lisp_Object | |
e28552a4 | 3704 | oblookup (obarray, ptr, size, size_byte) |
078e7b4a | 3705 | Lisp_Object obarray; |
4b2dd274 | 3706 | register const char *ptr; |
e28552a4 | 3707 | int size, size_byte; |
078e7b4a | 3708 | { |
7a70b397 RS |
3709 | int hash; |
3710 | int obsize; | |
078e7b4a JB |
3711 | register Lisp_Object tail; |
3712 | Lisp_Object bucket, tem; | |
3713 | ||
cfff016d | 3714 | if (!VECTORP (obarray) |
7c79a684 | 3715 | || (obsize = XVECTOR (obarray)->size) == 0) |
078e7b4a JB |
3716 | { |
3717 | obarray = check_obarray (obarray); | |
3718 | obsize = XVECTOR (obarray)->size; | |
3719 | } | |
519418b3 RS |
3720 | /* This is sometimes needed in the middle of GC. */ |
3721 | obsize &= ~ARRAY_MARK_FLAG; | |
078e7b4a | 3722 | /* Combining next two lines breaks VMS C 2.3. */ |
e28552a4 | 3723 | hash = hash_string (ptr, size_byte); |
078e7b4a JB |
3724 | hash %= obsize; |
3725 | bucket = XVECTOR (obarray)->contents[hash]; | |
d007f5c8 | 3726 | oblookup_last_bucket_number = hash; |
8bc285a2 | 3727 | if (EQ (bucket, make_number (0))) |
078e7b4a | 3728 | ; |
cfff016d | 3729 | else if (!SYMBOLP (bucket)) |
078e7b4a | 3730 | error ("Bad data in guts of obarray"); /* Like CADR error message */ |
d007f5c8 RS |
3731 | else |
3732 | for (tail = bucket; ; XSETSYMBOL (tail, XSYMBOL (tail)->next)) | |
078e7b4a | 3733 | { |
d5db4077 KR |
3734 | if (SBYTES (SYMBOL_NAME (tail)) == size_byte |
3735 | && SCHARS (SYMBOL_NAME (tail)) == size | |
3736 | && !bcmp (SDATA (SYMBOL_NAME (tail)), ptr, size_byte)) | |
078e7b4a JB |
3737 | return tail; |
3738 | else if (XSYMBOL (tail)->next == 0) | |
3739 | break; | |
3740 | } | |
1805de4f | 3741 | XSETINT (tem, hash); |
078e7b4a JB |
3742 | return tem; |
3743 | } | |
3744 | ||
3745 | static int | |
3746 | hash_string (ptr, len) | |
4b2dd274 | 3747 | const unsigned char *ptr; |
078e7b4a JB |
3748 | int len; |
3749 | { | |
4b2dd274 KR |
3750 | register const unsigned char *p = ptr; |
3751 | register const unsigned char *end = p + len; | |
078e7b4a JB |
3752 | register unsigned char c; |
3753 | register int hash = 0; | |
3754 | ||
3755 | while (p != end) | |
3756 | { | |
3757 | c = *p++; | |
3758 | if (c >= 0140) c -= 40; | |
3759 | hash = ((hash<<3) + (hash>>28) + c); | |
3760 | } | |
3761 | return hash & 07777777777; | |
3762 | } | |
d007f5c8 | 3763 | \f |
078e7b4a JB |
3764 | void |
3765 | map_obarray (obarray, fn, arg) | |
3766 | Lisp_Object obarray; | |
d5b28a9d | 3767 | void (*fn) P_ ((Lisp_Object, Lisp_Object)); |
078e7b4a JB |
3768 | Lisp_Object arg; |
3769 | { | |
3770 | register int i; | |
3771 | register Lisp_Object tail; | |
b7826503 | 3772 | CHECK_VECTOR (obarray); |
078e7b4a JB |
3773 | for (i = XVECTOR (obarray)->size - 1; i >= 0; i--) |
3774 | { | |
3775 | tail = XVECTOR (obarray)->contents[i]; | |
4f5c4403 | 3776 | if (SYMBOLP (tail)) |
078e7b4a JB |
3777 | while (1) |
3778 | { | |
3779 | (*fn) (tail, arg); | |
3780 | if (XSYMBOL (tail)->next == 0) | |
3781 | break; | |
1805de4f | 3782 | XSETSYMBOL (tail, XSYMBOL (tail)->next); |
078e7b4a JB |
3783 | } |
3784 | } | |
3785 | } | |
3786 | ||
d5b28a9d | 3787 | void |
078e7b4a JB |
3788 | mapatoms_1 (sym, function) |
3789 | Lisp_Object sym, function; | |
3790 | { | |
3791 | call1 (function, sym); | |
3792 | } | |
3793 | ||
3794 | DEFUN ("mapatoms", Fmapatoms, Smapatoms, 1, 2, 0, | |
5de38842 PJ |
3795 | doc: /* Call FUNCTION on every symbol in OBARRAY. |
3796 | OBARRAY defaults to the value of `obarray'. */) | |
3797 | (function, obarray) | |
078e7b4a JB |
3798 | Lisp_Object function, obarray; |
3799 | { | |
265a9e55 | 3800 | if (NILP (obarray)) obarray = Vobarray; |
078e7b4a JB |
3801 | obarray = check_obarray (obarray); |
3802 | ||
3803 | map_obarray (obarray, mapatoms_1, function); | |
3804 | return Qnil; | |
3805 | } | |
3806 | ||
5e88a39e | 3807 | #define OBARRAY_SIZE 1511 |
078e7b4a JB |
3808 | |
3809 | void | |
3810 | init_obarray () | |
3811 | { | |
3812 | Lisp_Object oblength; | |
3813 | int hash; | |
3814 | Lisp_Object *tem; | |
3815 | ||
baf69866 | 3816 | XSETFASTINT (oblength, OBARRAY_SIZE); |
078e7b4a | 3817 | |
491f16a2 | 3818 | Qnil = Fmake_symbol (make_pure_string ("nil", 3, 3, 0)); |
078e7b4a JB |
3819 | Vobarray = Fmake_vector (oblength, make_number (0)); |
3820 | initial_obarray = Vobarray; | |
3821 | staticpro (&initial_obarray); | |
3822 | /* Intern nil in the obarray */ | |
44c6c019 GM |
3823 | XSYMBOL (Qnil)->interned = SYMBOL_INTERNED_IN_INITIAL_OBARRAY; |
3824 | XSYMBOL (Qnil)->constant = 1; | |
177c0ea7 | 3825 | |
078e7b4a JB |
3826 | /* These locals are to kludge around a pyramid compiler bug. */ |
3827 | hash = hash_string ("nil", 3); | |
3828 | /* Separate statement here to avoid VAXC bug. */ | |
3829 | hash %= OBARRAY_SIZE; | |
3830 | tem = &XVECTOR (Vobarray)->contents[hash]; | |
3831 | *tem = Qnil; | |
3832 | ||
491f16a2 | 3833 | Qunbound = Fmake_symbol (make_pure_string ("unbound", 7, 7, 0)); |
078e7b4a JB |
3834 | XSYMBOL (Qnil)->function = Qunbound; |
3835 | XSYMBOL (Qunbound)->value = Qunbound; | |
3836 | XSYMBOL (Qunbound)->function = Qunbound; | |
3837 | ||
3838 | Qt = intern ("t"); | |
3839 | XSYMBOL (Qnil)->value = Qnil; | |
3840 | XSYMBOL (Qnil)->plist = Qnil; | |
3841 | XSYMBOL (Qt)->value = Qt; | |
44c6c019 | 3842 | XSYMBOL (Qt)->constant = 1; |
078e7b4a JB |
3843 | |
3844 | /* Qt is correct even if CANNOT_DUMP. loadup.el will set to nil at end. */ | |
3845 | Vpurify_flag = Qt; | |
3846 | ||
3847 | Qvariable_documentation = intern ("variable-documentation"); | |
0f73bb1c | 3848 | staticpro (&Qvariable_documentation); |
078e7b4a | 3849 | |
449fea39 | 3850 | read_buffer_size = 100 + MAX_MULTIBYTE_LENGTH; |
3cb65b0e | 3851 | read_buffer = (char *) xmalloc (read_buffer_size); |
078e7b4a JB |
3852 | } |
3853 | \f | |
3854 | void | |
3855 | defsubr (sname) | |
3856 | struct Lisp_Subr *sname; | |
3857 | { | |
3858 | Lisp_Object sym; | |
3859 | sym = intern (sname->symbol_name); | |
5a6891e2 | 3860 | XSETPVECTYPE (sname, PVEC_SUBR); |
1805de4f | 3861 | XSETSUBR (XSYMBOL (sym)->function, sname); |
078e7b4a JB |
3862 | } |
3863 | ||
3864 | #ifdef NOTDEF /* use fset in subr.el now */ | |
3865 | void | |
3866 | defalias (sname, string) | |
3867 | struct Lisp_Subr *sname; | |
3868 | char *string; | |
3869 | { | |
3870 | Lisp_Object sym; | |
3871 | sym = intern (string); | |
1805de4f | 3872 | XSETSUBR (XSYMBOL (sym)->function, sname); |
078e7b4a JB |
3873 | } |
3874 | #endif /* NOTDEF */ | |
3875 | ||
078e7b4a | 3876 | /* Define an "integer variable"; a symbol whose value is forwarded |
0f011df0 JB |
3877 | to a C variable of type int. Sample call: |
3878 | DEFVAR_INT ("emacs-priority", &emacs_priority, "Documentation"); */ | |
078e7b4a | 3879 | void |
e9e00ff2 | 3880 | defvar_int (namestring, address) |
078e7b4a | 3881 | char *namestring; |
31ade731 | 3882 | EMACS_INT *address; |
078e7b4a | 3883 | { |
1a0f90f7 | 3884 | Lisp_Object sym, val; |
078e7b4a | 3885 | sym = intern (namestring); |
1a0f90f7 | 3886 | val = allocate_misc (); |
47e28b2c | 3887 | XMISCTYPE (val) = Lisp_Misc_Intfwd; |
fc1e7df5 | 3888 | XINTFWD (val)->intvar = address; |
44c6c019 | 3889 | SET_SYMBOL_VALUE (sym, val); |
078e7b4a JB |
3890 | } |
3891 | ||
f0529b5b | 3892 | /* Similar but define a variable whose value is t if address contains 1, |
0f011df0 | 3893 | nil if address contains 0. */ |
078e7b4a | 3894 | void |
e9e00ff2 | 3895 | defvar_bool (namestring, address) |
078e7b4a JB |
3896 | char *namestring; |
3897 | int *address; | |
078e7b4a | 3898 | { |
1a0f90f7 | 3899 | Lisp_Object sym, val; |
078e7b4a | 3900 | sym = intern (namestring); |
1a0f90f7 | 3901 | val = allocate_misc (); |
47e28b2c | 3902 | XMISCTYPE (val) = Lisp_Misc_Boolfwd; |
fc1e7df5 | 3903 | XBOOLFWD (val)->boolvar = address; |
44c6c019 | 3904 | SET_SYMBOL_VALUE (sym, val); |
1ffcc3b1 | 3905 | Vbyte_boolean_vars = Fcons (sym, Vbyte_boolean_vars); |
078e7b4a JB |
3906 | } |
3907 | ||
1a0f90f7 KH |
3908 | /* Similar but define a variable whose value is the Lisp Object stored |
3909 | at address. Two versions: with and without gc-marking of the C | |
3910 | variable. The nopro version is used when that variable will be | |
3911 | gc-marked for some other reason, since marking the same slot twice | |
3912 | can cause trouble with strings. */ | |
078e7b4a | 3913 | void |
1a0f90f7 | 3914 | defvar_lisp_nopro (namestring, address) |
078e7b4a JB |
3915 | char *namestring; |
3916 | Lisp_Object *address; | |
078e7b4a | 3917 | { |
1a0f90f7 | 3918 | Lisp_Object sym, val; |
078e7b4a | 3919 | sym = intern (namestring); |
1a0f90f7 | 3920 | val = allocate_misc (); |
47e28b2c | 3921 | XMISCTYPE (val) = Lisp_Misc_Objfwd; |
fc1e7df5 | 3922 | XOBJFWD (val)->objvar = address; |
44c6c019 | 3923 | SET_SYMBOL_VALUE (sym, val); |
078e7b4a JB |
3924 | } |
3925 | ||
078e7b4a | 3926 | void |
1a0f90f7 | 3927 | defvar_lisp (namestring, address) |
078e7b4a JB |
3928 | char *namestring; |
3929 | Lisp_Object *address; | |
078e7b4a | 3930 | { |
1a0f90f7 KH |
3931 | defvar_lisp_nopro (namestring, address); |
3932 | staticpro (address); | |
078e7b4a JB |
3933 | } |
3934 | ||
950c215d | 3935 | /* Similar but define a variable whose value is the Lisp Object stored |
4ac38690 | 3936 | at a particular offset in the current kboard object. */ |
950c215d KH |
3937 | |
3938 | void | |
4ac38690 | 3939 | defvar_kboard (namestring, offset) |
950c215d KH |
3940 | char *namestring; |
3941 | int offset; | |
3942 | { | |
3943 | Lisp_Object sym, val; | |
3944 | sym = intern (namestring); | |
3945 | val = allocate_misc (); | |
47e28b2c | 3946 | XMISCTYPE (val) = Lisp_Misc_Kboard_Objfwd; |
4ac38690 | 3947 | XKBOARD_OBJFWD (val)->offset = offset; |
44c6c019 | 3948 | SET_SYMBOL_VALUE (sym, val); |
950c215d | 3949 | } |
078e7b4a | 3950 | \f |
11938f10 KH |
3951 | /* Record the value of load-path used at the start of dumping |
3952 | so we can see if the site changed it later during dumping. */ | |
3953 | static Lisp_Object dump_path; | |
3954 | ||
d5b28a9d | 3955 | void |
279499f0 | 3956 | init_lread () |
078e7b4a | 3957 | { |
46947372 | 3958 | char *normal; |
e73997a1 | 3959 | int turn_off_warning = 0; |
078e7b4a | 3960 | |
279499f0 | 3961 | /* Compute the default load-path. */ |
46947372 JB |
3962 | #ifdef CANNOT_DUMP |
3963 | normal = PATH_LOADSEARCH; | |
e065a56e | 3964 | Vload_path = decode_env_path (0, normal); |
46947372 JB |
3965 | #else |
3966 | if (NILP (Vpurify_flag)) | |
3967 | normal = PATH_LOADSEARCH; | |
279499f0 | 3968 | else |
46947372 | 3969 | normal = PATH_DUMPLOADSEARCH; |
279499f0 | 3970 | |
46947372 JB |
3971 | /* In a dumped Emacs, we normally have to reset the value of |
3972 | Vload_path from PATH_LOADSEARCH, since the value that was dumped | |
3973 | uses ../lisp, instead of the path of the installed elisp | |
3974 | libraries. However, if it appears that Vload_path was changed | |
3975 | from the default before dumping, don't override that value. */ | |
4746118a JB |
3976 | if (initialized) |
3977 | { | |
4746118a | 3978 | if (! NILP (Fequal (dump_path, Vload_path))) |
80667d53 RS |
3979 | { |
3980 | Vload_path = decode_env_path (0, normal); | |
74180aa4 | 3981 | if (!NILP (Vinstallation_directory)) |
80667d53 | 3982 | { |
3ddff138 RS |
3983 | Lisp_Object tem, tem1, sitelisp; |
3984 | ||
3985 | /* Remove site-lisp dirs from path temporarily and store | |
3986 | them in sitelisp, then conc them on at the end so | |
3987 | they're always first in path. */ | |
3988 | sitelisp = Qnil; | |
3989 | while (1) | |
3990 | { | |
3991 | tem = Fcar (Vload_path); | |
3992 | tem1 = Fstring_match (build_string ("site-lisp"), | |
3993 | tem, Qnil); | |
3994 | if (!NILP (tem1)) | |
3995 | { | |
3996 | Vload_path = Fcdr (Vload_path); | |
3997 | sitelisp = Fcons (tem, sitelisp); | |
3998 | } | |
3999 | else | |
4000 | break; | |
4001 | } | |
4002 | ||
74180aa4 | 4003 | /* Add to the path the lisp subdir of the |
3a3056e5 | 4004 | installation dir, if it exists. */ |
74180aa4 RS |
4005 | tem = Fexpand_file_name (build_string ("lisp"), |
4006 | Vinstallation_directory); | |
3a3056e5 RS |
4007 | tem1 = Ffile_exists_p (tem); |
4008 | if (!NILP (tem1)) | |
4009 | { | |
4010 | if (NILP (Fmember (tem, Vload_path))) | |
e73997a1 RS |
4011 | { |
4012 | turn_off_warning = 1; | |
3ddff138 | 4013 | Vload_path = Fcons (tem, Vload_path); |
e73997a1 | 4014 | } |
3a3056e5 RS |
4015 | } |
4016 | else | |
4017 | /* That dir doesn't exist, so add the build-time | |
4018 | Lisp dirs instead. */ | |
4019 | Vload_path = nconc2 (Vload_path, dump_path); | |
c478f98c | 4020 | |
9fbc0116 RS |
4021 | /* Add leim under the installation dir, if it exists. */ |
4022 | tem = Fexpand_file_name (build_string ("leim"), | |
4023 | Vinstallation_directory); | |
4024 | tem1 = Ffile_exists_p (tem); | |
4025 | if (!NILP (tem1)) | |
4026 | { | |
4027 | if (NILP (Fmember (tem, Vload_path))) | |
3ddff138 | 4028 | Vload_path = Fcons (tem, Vload_path); |
9fbc0116 RS |
4029 | } |
4030 | ||
88852d45 | 4031 | /* Add site-lisp under the installation dir, if it exists. */ |
c478f98c RS |
4032 | tem = Fexpand_file_name (build_string ("site-lisp"), |
4033 | Vinstallation_directory); | |
4034 | tem1 = Ffile_exists_p (tem); | |
4035 | if (!NILP (tem1)) | |
4036 | { | |
4037 | if (NILP (Fmember (tem, Vload_path))) | |
3ddff138 | 4038 | Vload_path = Fcons (tem, Vload_path); |
c478f98c | 4039 | } |
0f337465 RS |
4040 | |
4041 | /* If Emacs was not built in the source directory, | |
9fbc0116 RS |
4042 | and it is run from where it was built, add to load-path |
4043 | the lisp, leim and site-lisp dirs under that directory. */ | |
0f337465 RS |
4044 | |
4045 | if (NILP (Fequal (Vinstallation_directory, Vsource_directory))) | |
4046 | { | |
33046fc9 RS |
4047 | Lisp_Object tem2; |
4048 | ||
0f337465 RS |
4049 | tem = Fexpand_file_name (build_string ("src/Makefile"), |
4050 | Vinstallation_directory); | |
4051 | tem1 = Ffile_exists_p (tem); | |
33046fc9 RS |
4052 | |
4053 | /* Don't be fooled if they moved the entire source tree | |
4054 | AFTER dumping Emacs. If the build directory is indeed | |
4055 | different from the source dir, src/Makefile.in and | |
4056 | src/Makefile will not be found together. */ | |
4057 | tem = Fexpand_file_name (build_string ("src/Makefile.in"), | |
4058 | Vinstallation_directory); | |
4059 | tem2 = Ffile_exists_p (tem); | |
4060 | if (!NILP (tem1) && NILP (tem2)) | |
0f337465 RS |
4061 | { |
4062 | tem = Fexpand_file_name (build_string ("lisp"), | |
4063 | Vsource_directory); | |
4064 | ||
4065 | if (NILP (Fmember (tem, Vload_path))) | |
3ddff138 | 4066 | Vload_path = Fcons (tem, Vload_path); |
0f337465 | 4067 | |
9fbc0116 RS |
4068 | tem = Fexpand_file_name (build_string ("leim"), |
4069 | Vsource_directory); | |
4070 | ||
4071 | if (NILP (Fmember (tem, Vload_path))) | |
3ddff138 | 4072 | Vload_path = Fcons (tem, Vload_path); |
9fbc0116 | 4073 | |
0f337465 RS |
4074 | tem = Fexpand_file_name (build_string ("site-lisp"), |
4075 | Vsource_directory); | |
4076 | ||
4077 | if (NILP (Fmember (tem, Vload_path))) | |
3ddff138 | 4078 | Vload_path = Fcons (tem, Vload_path); |
0f337465 RS |
4079 | } |
4080 | } | |
3ddff138 RS |
4081 | if (!NILP (sitelisp)) |
4082 | Vload_path = nconc2 (Fnreverse (sitelisp), Vload_path); | |
80667d53 RS |
4083 | } |
4084 | } | |
4746118a JB |
4085 | } |
4086 | else | |
11938f10 | 4087 | { |
7b396c6c RS |
4088 | /* NORMAL refers to the lisp dir in the source directory. */ |
4089 | /* We used to add ../lisp at the front here, but | |
4090 | that caused trouble because it was copied from dump_path | |
88852d45 | 4091 | into Vload_path, above, when Vinstallation_directory was non-nil. |
7b396c6c RS |
4092 | It should be unnecessary. */ |
4093 | Vload_path = decode_env_path (0, normal); | |
11938f10 KH |
4094 | dump_path = Vload_path; |
4095 | } | |
46947372 | 4096 | #endif |
279499f0 | 4097 | |
536d6baa | 4098 | #if (!(defined(WINDOWSNT) || (defined(HAVE_CARBON)))) |
177c0ea7 JB |
4099 | /* When Emacs is invoked over network shares on NT, PATH_LOADSEARCH is |
4100 | almost never correct, thereby causing a warning to be printed out that | |
8e6208c5 | 4101 | confuses users. Since PATH_LOADSEARCH is always overridden by the |
95af0924 | 4102 | EMACSLOADPATH environment variable below, disable the warning on NT. |
f3d5f92d ST |
4103 | Also, when using the "self-contained" option for Carbon Emacs for MacOSX, |
4104 | the "standard" paths may not exist and would be overridden by | |
4105 | EMACSLOADPATH as on NT. Since this depends on how the executable | |
4106 | was build and packaged, turn off the warnings in general */ | |
317073d5 | 4107 | |
078e7b4a | 4108 | /* Warn if dirs in the *standard* path don't exist. */ |
e73997a1 RS |
4109 | if (!turn_off_warning) |
4110 | { | |
4111 | Lisp_Object path_tail; | |
078e7b4a | 4112 | |
e73997a1 RS |
4113 | for (path_tail = Vload_path; |
4114 | !NILP (path_tail); | |
c1d497be | 4115 | path_tail = XCDR (path_tail)) |
e73997a1 RS |
4116 | { |
4117 | Lisp_Object dirfile; | |
4118 | dirfile = Fcar (path_tail); | |
4119 | if (STRINGP (dirfile)) | |
4120 | { | |
4121 | dirfile = Fdirectory_file_name (dirfile); | |
d5db4077 | 4122 | if (access (SDATA (dirfile), 0) < 0) |
85496b8c | 4123 | dir_warning ("Warning: Lisp directory `%s' does not exist.\n", |
c1d497be | 4124 | XCAR (path_tail)); |
e73997a1 RS |
4125 | } |
4126 | } | |
4127 | } | |
536d6baa | 4128 | #endif /* !(WINDOWSNT || HAVE_CARBON) */ |
46947372 JB |
4129 | |
4130 | /* If the EMACSLOADPATH environment variable is set, use its value. | |
4131 | This doesn't apply if we're dumping. */ | |
ffd9c2a1 | 4132 | #ifndef CANNOT_DUMP |
46947372 JB |
4133 | if (NILP (Vpurify_flag) |
4134 | && egetenv ("EMACSLOADPATH")) | |
ffd9c2a1 | 4135 | #endif |
279499f0 | 4136 | Vload_path = decode_env_path ("EMACSLOADPATH", normal); |
279499f0 JB |
4137 | |
4138 | Vvalues = Qnil; | |
4139 | ||
078e7b4a | 4140 | load_in_progress = 0; |
4e53f562 | 4141 | Vload_file_name = Qnil; |
d2c6be7f RS |
4142 | |
4143 | load_descriptor_list = Qnil; | |
8f6b0411 RS |
4144 | |
4145 | Vstandard_input = Qt; | |
f74b0705 | 4146 | Vloads_in_progress = Qnil; |
078e7b4a JB |
4147 | } |
4148 | ||
85496b8c | 4149 | /* Print a warning, using format string FORMAT, that directory DIRNAME |
88852d45 | 4150 | does not exist. Print it on stderr and put it in *Messages*. */ |
85496b8c | 4151 | |
d5b28a9d | 4152 | void |
85496b8c RS |
4153 | dir_warning (format, dirname) |
4154 | char *format; | |
4155 | Lisp_Object dirname; | |
4156 | { | |
4157 | char *buffer | |
d5db4077 | 4158 | = (char *) alloca (SCHARS (dirname) + strlen (format) + 5); |
85496b8c | 4159 | |
d5db4077 KR |
4160 | fprintf (stderr, format, SDATA (dirname)); |
4161 | sprintf (buffer, format, SDATA (dirname)); | |
9b69357e GV |
4162 | /* Don't log the warning before we've initialized!! */ |
4163 | if (initialized) | |
4164 | message_dolog (buffer, strlen (buffer), 0, STRING_MULTIBYTE (dirname)); | |
85496b8c RS |
4165 | } |
4166 | ||
078e7b4a | 4167 | void |
279499f0 | 4168 | syms_of_lread () |
078e7b4a JB |
4169 | { |
4170 | defsubr (&Sread); | |
4171 | defsubr (&Sread_from_string); | |
4172 | defsubr (&Sintern); | |
4173 | defsubr (&Sintern_soft); | |
d007f5c8 | 4174 | defsubr (&Sunintern); |
971a4293 | 4175 | defsubr (&Sget_load_suffixes); |
078e7b4a | 4176 | defsubr (&Sload); |
228d4b1c | 4177 | defsubr (&Seval_buffer); |
078e7b4a JB |
4178 | defsubr (&Seval_region); |
4179 | defsubr (&Sread_char); | |
4180 | defsubr (&Sread_char_exclusive); | |
078e7b4a | 4181 | defsubr (&Sread_event); |
078e7b4a JB |
4182 | defsubr (&Sget_file_char); |
4183 | defsubr (&Smapatoms); | |
86d00812 | 4184 | defsubr (&Slocate_file_internal); |
078e7b4a JB |
4185 | |
4186 | DEFVAR_LISP ("obarray", &Vobarray, | |
5de38842 PJ |
4187 | doc: /* Symbol table for use by `intern' and `read'. |
4188 | It is a vector whose length ought to be prime for best results. | |
4189 | The vector's contents don't make sense if examined from Lisp programs; | |
4190 | to find all the symbols in an obarray, use `mapatoms'. */); | |
078e7b4a JB |
4191 | |
4192 | DEFVAR_LISP ("values", &Vvalues, | |
5de38842 PJ |
4193 | doc: /* List of values of all expressions which were read, evaluated and printed. |
4194 | Order is reverse chronological. */); | |
078e7b4a JB |
4195 | |
4196 | DEFVAR_LISP ("standard-input", &Vstandard_input, | |
5de38842 PJ |
4197 | doc: /* Stream for read to get input from. |
4198 | See documentation of `read' for possible values. */); | |
078e7b4a JB |
4199 | Vstandard_input = Qt; |
4200 | ||
abb13b09 CW |
4201 | DEFVAR_LISP ("read-with-symbol-positions", &Vread_with_symbol_positions, |
4202 | doc: /* If non-nil, add position of read symbols to `read-symbol-positions-list'. | |
4203 | ||
4204 | If this variable is a buffer, then only forms read from that buffer | |
4205 | will be added to `read-symbol-positions-list'. | |
4206 | If this variable is t, then all read forms will be added. | |
4207 | The effect of all other values other than nil are not currently | |
4208 | defined, although they may be in the future. | |
4209 | ||
4210 | The positions are relative to the last call to `read' or | |
4211 | `read-from-string'. It is probably a bad idea to set this variable at | |
4212 | the toplevel; bind it instead. */); | |
4213 | Vread_with_symbol_positions = Qnil; | |
4214 | ||
4215 | DEFVAR_LISP ("read-symbol-positions-list", &Vread_symbol_positions_list, | |
d6567030 | 4216 | doc: /* A list mapping read symbols to their positions. |
abb13b09 CW |
4217 | This variable is modified during calls to `read' or |
4218 | `read-from-string', but only when `read-with-symbol-positions' is | |
4219 | non-nil. | |
4220 | ||
4221 | Each element of the list looks like (SYMBOL . CHAR-POSITION), where | |
d6567030 | 4222 | CHAR-POSITION is an integer giving the offset of that occurrence of the |
abb13b09 CW |
4223 | symbol from the position where `read' or `read-from-string' started. |
4224 | ||
4225 | Note that a symbol will appear multiple times in this list, if it was | |
4226 | read multiple times. The list is in the same order as the symbols | |
4227 | were read in. */); | |
177c0ea7 | 4228 | Vread_symbol_positions_list = Qnil; |
abb13b09 | 4229 | |
078e7b4a | 4230 | DEFVAR_LISP ("load-path", &Vload_path, |
5de38842 PJ |
4231 | doc: /* *List of directories to search for files to load. |
4232 | Each element is a string (directory name) or nil (try default directory). | |
4233 | Initialized based on EMACSLOADPATH environment variable, if any, | |
4234 | otherwise to default specified by file `epaths.h' when Emacs was built. */); | |
078e7b4a | 4235 | |
e61b9b87 | 4236 | DEFVAR_LISP ("load-suffixes", &Vload_suffixes, |
971a4293 LT |
4237 | doc: /* List of suffixes for (compiled or source) Emacs Lisp files. |
4238 | This list should not include the empty string. | |
4239 | `load' and related functions try to append these suffixes, in order, | |
4240 | to the specified file name if a Lisp suffix is allowed or required. */); | |
e61b9b87 SM |
4241 | Vload_suffixes = Fcons (build_string (".elc"), |
4242 | Fcons (build_string (".el"), Qnil)); | |
971a4293 LT |
4243 | DEFVAR_LISP ("load-file-rep-suffixes", &Vload_file_rep_suffixes, |
4244 | doc: /* List of suffixes that indicate representations of \ | |
4245 | the same file. | |
4246 | This list should normally start with the empty string. | |
4247 | ||
4248 | Enabling Auto Compression mode appends the suffixes in | |
4249 | `jka-compr-load-suffixes' to this list and disabling Auto Compression | |
4250 | mode removes them again. `load' and related functions use this list to | |
4251 | determine whether they should look for compressed versions of a file | |
4252 | and, if so, which suffixes they should try to append to the file name | |
4253 | in order to do so. However, if you want to customize which suffixes | |
4254 | the loading functions recognize as compression suffixes, you should | |
4255 | customize `jka-compr-load-suffixes' rather than the present variable. */); | |
a74d1c97 | 4256 | Vload_file_rep_suffixes = Fcons (empty_unibyte_string, Qnil); |
e61b9b87 | 4257 | |
078e7b4a | 4258 | DEFVAR_BOOL ("load-in-progress", &load_in_progress, |
e0f24100 | 4259 | doc: /* Non-nil if inside of `load'. */); |
078e7b4a JB |
4260 | |
4261 | DEFVAR_LISP ("after-load-alist", &Vafter_load_alist, | |
5de38842 | 4262 | doc: /* An alist of expressions to be evalled when particular files are loaded. |
6bb6da3e AM |
4263 | Each element looks like (REGEXP-OR-FEATURE FORMS...). |
4264 | ||
4265 | REGEXP-OR-FEATURE is either a regular expression to match file names, or | |
4266 | a symbol \(a feature name). | |
4267 | ||
4268 | When `load' is run and the file-name argument matches an element's | |
4269 | REGEXP-OR-FEATURE, or when `provide' is run and provides the symbol | |
4270 | REGEXP-OR-FEATURE, the FORMS in the element are executed. | |
4271 | ||
4272 | An error in FORMS does not undo the load, but does prevent execution of | |
4273 | the rest of the FORMS. */); | |
078e7b4a JB |
4274 | Vafter_load_alist = Qnil; |
4275 | ||
ae321d28 | 4276 | DEFVAR_LISP ("load-history", &Vload_history, |
0fc213e9 | 4277 | doc: /* Alist mapping file names to symbols and features. |
5de38842 PJ |
4278 | Each alist element is a list that starts with a file name, |
4279 | except for one element (optional) that starts with nil and describes | |
4280 | definitions evaluated from buffers not visiting files. | |
6bb6da3e AM |
4281 | |
4282 | The file name is absolute and is the true file name (i.e. it doesn't | |
4283 | contain symbolic links) of the loaded file. | |
4284 | ||
1bc2cdb1 | 4285 | The remaining elements of each list are symbols defined as variables |
d642e4f9 | 4286 | and cons cells of the form `(provide . FEATURE)', `(require . FEATURE)', |
191c4353 JB |
4287 | `(defun . FUNCTION)', `(autoload . SYMBOL)', `(defface . SYMBOL)' |
4288 | and `(t . SYMBOL)'. An element `(t . SYMBOL)' precedes an entry | |
4289 | `(defun . FUNCTION)', and means that SYMBOL was an autoload before | |
4290 | this file redefined it as a function. | |
0fc213e9 | 4291 | |
b502a9a1 RS |
4292 | During preloading, the file name recorded is relative to the main Lisp |
4293 | directory. These file names are converted to absolute at startup. */); | |
ae321d28 RS |
4294 | Vload_history = Qnil; |
4295 | ||
20ea2964 | 4296 | DEFVAR_LISP ("load-file-name", &Vload_file_name, |
5de38842 | 4297 | doc: /* Full name of file being loaded by `load'. */); |
20ea2964 RS |
4298 | Vload_file_name = Qnil; |
4299 | ||
4116ab9f | 4300 | DEFVAR_LISP ("user-init-file", &Vuser_init_file, |
5de38842 | 4301 | doc: /* File name, including directory, of user's initialization file. |
0a25a201 RS |
4302 | If the file loaded had extension `.elc', and the corresponding source file |
4303 | exists, this variable contains the name of source file, suitable for use | |
099de390 JB |
4304 | by functions like `custom-save-all' which edit the init file. |
4305 | While Emacs loads and evaluates the init file, value is the real name | |
4306 | of the file, regardless of whether or not it has the `.elc' extension. */); | |
4116ab9f KH |
4307 | Vuser_init_file = Qnil; |
4308 | ||
8a1f1537 | 4309 | DEFVAR_LISP ("current-load-list", &Vcurrent_load_list, |
5de38842 | 4310 | doc: /* Used for internal purposes by `load'. */); |
ae321d28 RS |
4311 | Vcurrent_load_list = Qnil; |
4312 | ||
84a15045 | 4313 | DEFVAR_LISP ("load-read-function", &Vload_read_function, |
5de38842 PJ |
4314 | doc: /* Function used by `load' and `eval-region' for reading expressions. |
4315 | The default is nil, which means use the function `read'. */); | |
84a15045 RS |
4316 | Vload_read_function = Qnil; |
4317 | ||
fe0e03f3 | 4318 | DEFVAR_LISP ("load-source-file-function", &Vload_source_file_function, |
9b33a603 | 4319 | doc: /* Function called in `load' for loading an Emacs Lisp source file. |
5de38842 PJ |
4320 | This function is for doing code conversion before reading the source file. |
4321 | If nil, loading is done without any code conversion. | |
4322 | Arguments are FULLNAME, FILE, NOERROR, NOMESSAGE, where | |
4323 | FULLNAME is the full name of FILE. | |
4324 | See `load' for the meaning of the remaining arguments. */); | |
fe0e03f3 KH |
4325 | Vload_source_file_function = Qnil; |
4326 | ||
b2a30870 | 4327 | DEFVAR_BOOL ("load-force-doc-strings", &load_force_doc_strings, |
5de38842 PJ |
4328 | doc: /* Non-nil means `load' should force-load all dynamic doc strings. |
4329 | This is useful when the file being loaded is a temporary copy. */); | |
b2a30870 RS |
4330 | load_force_doc_strings = 0; |
4331 | ||
94e554db | 4332 | DEFVAR_BOOL ("load-convert-to-unibyte", &load_convert_to_unibyte, |
5de38842 PJ |
4333 | doc: /* Non-nil means `read' converts strings to unibyte whenever possible. |
4334 | This is normally bound by `load' and `eval-buffer' to control `read', | |
4335 | and is not meant for users to change. */); | |
94e554db RS |
4336 | load_convert_to_unibyte = 0; |
4337 | ||
1521a8fa | 4338 | DEFVAR_LISP ("source-directory", &Vsource_directory, |
5de38842 PJ |
4339 | doc: /* Directory in which Emacs sources were found when Emacs was built. |
4340 | You cannot count on them to still be there! */); | |
a90ba1e2 KH |
4341 | Vsource_directory |
4342 | = Fexpand_file_name (build_string ("../"), | |
4343 | Fcar (decode_env_path (0, PATH_DUMPLOADSEARCH))); | |
4344 | ||
4b104c41 | 4345 | DEFVAR_LISP ("preloaded-file-list", &Vpreloaded_file_list, |
5de38842 | 4346 | doc: /* List of files that were preloaded (when dumping Emacs). */); |
4b104c41 RS |
4347 | Vpreloaded_file_list = Qnil; |
4348 | ||
1ffcc3b1 | 4349 | DEFVAR_LISP ("byte-boolean-vars", &Vbyte_boolean_vars, |
5de38842 | 4350 | doc: /* List of all DEFVAR_BOOL variables, used by the byte code optimizer. */); |
1ffcc3b1 DL |
4351 | Vbyte_boolean_vars = Qnil; |
4352 | ||
da84f340 | 4353 | DEFVAR_BOOL ("load-dangerous-libraries", &load_dangerous_libraries, |
5de38842 PJ |
4354 | doc: /* Non-nil means load dangerous compiled Lisp files. |
4355 | Some versions of XEmacs use different byte codes than Emacs. These | |
4356 | incompatible byte codes can make Emacs crash when it tries to execute | |
4357 | them. */); | |
da84f340 GM |
4358 | load_dangerous_libraries = 0; |
4359 | ||
bb970e67 | 4360 | DEFVAR_LISP ("bytecomp-version-regexp", &Vbytecomp_version_regexp, |
5de38842 PJ |
4361 | doc: /* Regular expression matching safe to load compiled Lisp files. |
4362 | When Emacs loads a compiled Lisp file, it reads the first 512 bytes | |
4363 | from the file, and matches them against this regular expression. | |
4364 | When the regular expression matches, the file is considered to be safe | |
4365 | to load. See also `load-dangerous-libraries'. */); | |
bb970e67 | 4366 | Vbytecomp_version_regexp |
f2e7d5eb | 4367 | = build_string ("^;;;.\\(in Emacs version\\|bytecomp version FSF\\)"); |
da84f340 | 4368 | |
3f39f996 RS |
4369 | DEFVAR_LISP ("eval-buffer-list", &Veval_buffer_list, |
4370 | doc: /* List of buffers being read from by calls to `eval-buffer' and `eval-region'. */); | |
4371 | Veval_buffer_list = Qnil; | |
4372 | ||
5aa273b0 SM |
4373 | DEFVAR_LISP ("old-style-backquotes", &Vold_style_backquotes, |
4374 | doc: /* Set to non-nil when `read' encounters an old-style backquote. */); | |
4375 | Vold_style_backquotes = Qnil; | |
1d064697 SM |
4376 | Qold_style_backquotes = intern ("old-style-backquotes"); |
4377 | staticpro (&Qold_style_backquotes); | |
5aa273b0 | 4378 | |
a90ba1e2 KH |
4379 | /* Vsource_directory was initialized in init_lread. */ |
4380 | ||
d2c6be7f RS |
4381 | load_descriptor_list = Qnil; |
4382 | staticpro (&load_descriptor_list); | |
4383 | ||
8a1f1537 RS |
4384 | Qcurrent_load_list = intern ("current-load-list"); |
4385 | staticpro (&Qcurrent_load_list); | |
4386 | ||
078e7b4a JB |
4387 | Qstandard_input = intern ("standard-input"); |
4388 | staticpro (&Qstandard_input); | |
4389 | ||
4390 | Qread_char = intern ("read-char"); | |
4391 | staticpro (&Qread_char); | |
4392 | ||
4393 | Qget_file_char = intern ("get-file-char"); | |
4394 | staticpro (&Qget_file_char); | |
7bd279cd | 4395 | |
8792be66 KH |
4396 | Qget_emacs_mule_file_char = intern ("get-emacs-mule-file-char"); |
4397 | staticpro (&Qget_emacs_mule_file_char); | |
4398 | ||
4399 | Qload_force_doc_strings = intern ("load-force-doc-strings"); | |
4400 | staticpro (&Qload_force_doc_strings); | |
4401 | ||
17634846 RS |
4402 | Qbackquote = intern ("`"); |
4403 | staticpro (&Qbackquote); | |
4404 | Qcomma = intern (","); | |
4405 | staticpro (&Qcomma); | |
4406 | Qcomma_at = intern (",@"); | |
4407 | staticpro (&Qcomma_at); | |
4408 | Qcomma_dot = intern (",."); | |
4409 | staticpro (&Qcomma_dot); | |
4410 | ||
74549846 RS |
4411 | Qinhibit_file_name_operation = intern ("inhibit-file-name-operation"); |
4412 | staticpro (&Qinhibit_file_name_operation); | |
4413 | ||
7bd279cd RS |
4414 | Qascii_character = intern ("ascii-character"); |
4415 | staticpro (&Qascii_character); | |
c2225d00 | 4416 | |
2b6cae0c RS |
4417 | Qfunction = intern ("function"); |
4418 | staticpro (&Qfunction); | |
4419 | ||
c2225d00 RS |
4420 | Qload = intern ("load"); |
4421 | staticpro (&Qload); | |
20ea2964 RS |
4422 | |
4423 | Qload_file_name = intern ("load-file-name"); | |
4424 | staticpro (&Qload_file_name); | |
11938f10 | 4425 | |
3f39f996 RS |
4426 | Qeval_buffer_list = intern ("eval-buffer-list"); |
4427 | staticpro (&Qeval_buffer_list); | |
4428 | ||
6bb6da3e AM |
4429 | Qfile_truename = intern ("file-truename"); |
4430 | staticpro (&Qfile_truename) ; | |
4431 | ||
4432 | Qdo_after_load_evaluation = intern ("do-after-load-evaluation"); | |
4433 | staticpro (&Qdo_after_load_evaluation) ; | |
4434 | ||
11938f10 | 4435 | staticpro (&dump_path); |
4ad679f9 EN |
4436 | |
4437 | staticpro (&read_objects); | |
4438 | read_objects = Qnil; | |
9e062b6c | 4439 | staticpro (&seen_list); |
f153db13 | 4440 | seen_list = Qnil; |
177c0ea7 | 4441 | |
7ee3bd7b GM |
4442 | Vloads_in_progress = Qnil; |
4443 | staticpro (&Vloads_in_progress); | |
078e7b4a | 4444 | } |
6b61353c KH |
4445 | |
4446 | /* arch-tag: a0d02733-0f96-4844-a659-9fd53c4f414d | |
4447 | (do not change this comment) */ |