Commit | Line | Data |
---|---|---|
078e7b4a | 1 | /* Lisp parsing and input streams. |
2fcad71e | 2 | Copyright (C) 1985,86,87,88,89,93,94,95,97,98,99,2000,01,03,2004 |
33046fc9 | 3 | Free Software Foundation, Inc. |
078e7b4a JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
46947372 | 9 | the Free Software Foundation; either version 2, or (at your option) |
078e7b4a JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
078e7b4a JB |
21 | |
22 | ||
98280b76 | 23 | #include <config.h> |
078e7b4a JB |
24 | #include <stdio.h> |
25 | #include <sys/types.h> | |
26 | #include <sys/stat.h> | |
27 | #include <sys/file.h> | |
2c1b5dbe | 28 | #include <errno.h> |
078e7b4a | 29 | #include "lisp.h" |
95384e1e | 30 | #include "intervals.h" |
078e7b4a | 31 | #include "buffer.h" |
fe0e03f3 | 32 | #include "charset.h" |
57bda87a | 33 | #include <epaths.h> |
078e7b4a | 34 | #include "commands.h" |
e37c0805 | 35 | #include "keyboard.h" |
7bd279cd | 36 | #include "termhooks.h" |
eb191db2 | 37 | #include "coding.h" |
078e7b4a JB |
38 | |
39 | #ifdef lint | |
40 | #include <sys/inode.h> | |
41 | #endif /* lint */ | |
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; |
7bd279cd RS |
88 | |
89 | extern Lisp_Object Qevent_symbol_element_mask; | |
74549846 | 90 | extern Lisp_Object Qfile_exists_p; |
078e7b4a JB |
91 | |
92 | /* non-zero if inside `load' */ | |
93 | int load_in_progress; | |
94 | ||
1521a8fa RS |
95 | /* Directory in which the sources were found. */ |
96 | Lisp_Object Vsource_directory; | |
97 | ||
e61b9b87 SM |
98 | /* Search path and suffixes for files to be loaded. */ |
99 | Lisp_Object Vload_path, Vload_suffixes, default_suffixes; | |
078e7b4a | 100 | |
4116ab9f KH |
101 | /* File name of user's init file. */ |
102 | Lisp_Object Vuser_init_file; | |
103 | ||
ae321d28 RS |
104 | /* This is the user-visible association list that maps features to |
105 | lists of defs in their load files. */ | |
106 | Lisp_Object Vload_history; | |
107 | ||
20ea2964 | 108 | /* This is used to build the load history. */ |
ae321d28 RS |
109 | Lisp_Object Vcurrent_load_list; |
110 | ||
4b104c41 RS |
111 | /* List of files that were preloaded. */ |
112 | Lisp_Object Vpreloaded_file_list; | |
113 | ||
20ea2964 RS |
114 | /* Name of file actually being read by `load'. */ |
115 | Lisp_Object Vload_file_name; | |
116 | ||
84a15045 RS |
117 | /* Function to use for reading, in `load' and friends. */ |
118 | Lisp_Object Vload_read_function; | |
119 | ||
4ad679f9 EN |
120 | /* The association list of objects read with the #n=object form. |
121 | Each member of the list has the form (n . object), and is used to | |
122 | look up the object for the corresponding #n# construct. | |
123 | It must be set to nil before all top-level calls to read0. */ | |
124 | Lisp_Object read_objects; | |
125 | ||
b2a30870 RS |
126 | /* Nonzero means load should forcibly load all dynamic doc strings. */ |
127 | static int load_force_doc_strings; | |
128 | ||
94e554db RS |
129 | /* Nonzero means read should convert strings to unibyte. */ |
130 | static int load_convert_to_unibyte; | |
131 | ||
fe0e03f3 KH |
132 | /* Function to use for loading an Emacs lisp source file (not |
133 | compiled) instead of readevalloop. */ | |
134 | Lisp_Object Vload_source_file_function; | |
135 | ||
1ffcc3b1 DL |
136 | /* List of all DEFVAR_BOOL variables. Used by the byte optimizer. */ |
137 | Lisp_Object Vbyte_boolean_vars; | |
138 | ||
abb13b09 CW |
139 | /* Whether or not to add a `read-positions' property to symbols |
140 | read. */ | |
141 | Lisp_Object Vread_with_symbol_positions; | |
142 | ||
143 | /* List of (SYMBOL . POSITION) accumulated so far. */ | |
144 | Lisp_Object Vread_symbol_positions_list; | |
145 | ||
d2c6be7f RS |
146 | /* List of descriptors now open for Fload. */ |
147 | static Lisp_Object load_descriptor_list; | |
148 | ||
b2a30870 | 149 | /* File for get_file_char to read from. Use by load. */ |
078e7b4a JB |
150 | static FILE *instream; |
151 | ||
152 | /* When nonzero, read conses in pure space */ | |
153 | static int read_pure; | |
154 | ||
b2a30870 | 155 | /* For use within read-from-string (this reader is non-reentrant!!) */ |
078e7b4a | 156 | static int read_from_string_index; |
bed23cb2 | 157 | static int read_from_string_index_byte; |
078e7b4a | 158 | static int read_from_string_limit; |
17634846 | 159 | |
6f7f43d5 RS |
160 | /* Number of bytes left to read in the buffer character |
161 | that `readchar' has already advanced over. */ | |
162 | static int readchar_backlog; | |
abb13b09 CW |
163 | /* Number of characters read in the current call to Fread or |
164 | Fread_from_string. */ | |
165 | static int readchar_count; | |
6f7f43d5 | 166 | |
c15cfd1f | 167 | /* This contains the last string skipped with #@. */ |
b2a30870 RS |
168 | static char *saved_doc_string; |
169 | /* Length of buffer allocated in saved_doc_string. */ | |
170 | static int saved_doc_string_size; | |
171 | /* Length of actual data in saved_doc_string. */ | |
172 | static int saved_doc_string_length; | |
173 | /* This is the file position that string came from. */ | |
68c45bf0 | 174 | static file_offset saved_doc_string_position; |
b2a30870 | 175 | |
c15cfd1f RS |
176 | /* This contains the previous string skipped with #@. |
177 | We copy it from saved_doc_string when a new string | |
178 | is put in saved_doc_string. */ | |
179 | static char *prev_saved_doc_string; | |
180 | /* Length of buffer allocated in prev_saved_doc_string. */ | |
181 | static int prev_saved_doc_string_size; | |
182 | /* Length of actual data in prev_saved_doc_string. */ | |
183 | static int prev_saved_doc_string_length; | |
184 | /* This is the file position that string came from. */ | |
68c45bf0 | 185 | static file_offset prev_saved_doc_string_position; |
c15cfd1f | 186 | |
17634846 RS |
187 | /* Nonzero means inside a new-style backquote |
188 | with no surrounding parentheses. | |
189 | Fread initializes this to zero, so we need not specbind it | |
190 | or worry about what happens to it when there is an error. */ | |
191 | static int new_backquote_flag; | |
7ee3bd7b GM |
192 | |
193 | /* A list of file names for files being loaded in Fload. Used to | |
194 | check for recursive loads. */ | |
195 | ||
196 | static Lisp_Object Vloads_in_progress; | |
197 | ||
550a625e GM |
198 | /* Non-zero means load dangerous compiled Lisp files. */ |
199 | ||
200 | int load_dangerous_libraries; | |
201 | ||
202 | /* A regular expression used to detect files compiled with Emacs. */ | |
203 | ||
204 | static Lisp_Object Vbytecomp_version_regexp; | |
205 | ||
a742d646 | 206 | static void to_multibyte P_ ((char **, char **, int *)); |
11d89e5d | 207 | static void readevalloop P_ ((Lisp_Object, FILE*, Lisp_Object, |
550a625e GM |
208 | Lisp_Object (*) (), int, |
209 | Lisp_Object, Lisp_Object)); | |
210 | static Lisp_Object load_unwind P_ ((Lisp_Object)); | |
211 | static Lisp_Object load_descriptor_unwind P_ ((Lisp_Object)); | |
212 | ||
078e7b4a JB |
213 | \f |
214 | /* Handle unreading and rereading of characters. | |
215 | Write READCHAR to read a character, | |
fe0e03f3 KH |
216 | UNREAD(c) to unread c to be read again. |
217 | ||
abb13b09 CW |
218 | The READCHAR and UNREAD macros are meant for reading/unreading a |
219 | byte code; they do not handle multibyte characters. The caller | |
220 | should manage them if necessary. | |
177c0ea7 | 221 | |
abb13b09 CW |
222 | [ Actually that seems to be a lie; READCHAR will definitely read |
223 | multibyte characters from buffer sources, at least. Is the | |
224 | comment just out of date? | |
225 | -- Colin Walters <walters@gnu.org>, 22 May 2002 16:36:50 -0400 ] | |
fe0e03f3 | 226 | */ |
078e7b4a JB |
227 | |
228 | #define READCHAR readchar (readcharfun) | |
229 | #define UNREAD(c) unreadchar (readcharfun, c) | |
230 | ||
231 | static int | |
232 | readchar (readcharfun) | |
233 | Lisp_Object readcharfun; | |
234 | { | |
235 | Lisp_Object tem; | |
95384e1e | 236 | register int c; |
078e7b4a | 237 | |
abb13b09 | 238 | readchar_count++; |
177c0ea7 | 239 | |
cfff016d | 240 | if (BUFFERP (readcharfun)) |
078e7b4a | 241 | { |
bed23cb2 | 242 | register struct buffer *inbuffer = XBUFFER (readcharfun); |
078e7b4a | 243 | |
bed23cb2 RS |
244 | int pt_byte = BUF_PT_BYTE (inbuffer); |
245 | int orig_pt_byte = pt_byte; | |
6f7f43d5 | 246 | |
00a9a935 RS |
247 | if (readchar_backlog > 0) |
248 | /* We get the address of the byte just passed, | |
249 | which is the last byte of the character. | |
250 | The other bytes in this character are consecutive with it, | |
251 | because the gap can't be in the middle of a character. */ | |
252 | return *(BUF_BYTE_ADDRESS (inbuffer, BUF_PT_BYTE (inbuffer) - 1) | |
253 | - --readchar_backlog); | |
254 | ||
bed23cb2 RS |
255 | if (pt_byte >= BUF_ZV_BYTE (inbuffer)) |
256 | return -1; | |
078e7b4a | 257 | |
00a9a935 RS |
258 | readchar_backlog = -1; |
259 | ||
bed23cb2 RS |
260 | if (! NILP (inbuffer->enable_multibyte_characters)) |
261 | { | |
00a9a935 | 262 | /* Fetch the character code from the buffer. */ |
bed23cb2 RS |
263 | unsigned char *p = BUF_BYTE_ADDRESS (inbuffer, pt_byte); |
264 | BUF_INC_POS (inbuffer, pt_byte); | |
265 | c = STRING_CHAR (p, pt_byte - orig_pt_byte); | |
266 | } | |
267 | else | |
268 | { | |
269 | c = BUF_FETCH_BYTE (inbuffer, pt_byte); | |
270 | pt_byte++; | |
6f7f43d5 | 271 | } |
bed23cb2 | 272 | SET_BUF_PT_BOTH (inbuffer, BUF_PT (inbuffer) + 1, pt_byte); |
6f7f43d5 | 273 | |
bed23cb2 | 274 | return c; |
078e7b4a | 275 | } |
cfff016d | 276 | if (MARKERP (readcharfun)) |
078e7b4a | 277 | { |
bed23cb2 | 278 | register struct buffer *inbuffer = XMARKER (readcharfun)->buffer; |
078e7b4a | 279 | |
bed23cb2 RS |
280 | int bytepos = marker_byte_position (readcharfun); |
281 | int orig_bytepos = bytepos; | |
6f7f43d5 | 282 | |
00a9a935 RS |
283 | if (readchar_backlog > 0) |
284 | /* We get the address of the byte just passed, | |
285 | which is the last byte of the character. | |
286 | The other bytes in this character are consecutive with it, | |
287 | because the gap can't be in the middle of a character. */ | |
288 | return *(BUF_BYTE_ADDRESS (inbuffer, XMARKER (readcharfun)->bytepos - 1) | |
289 | - --readchar_backlog); | |
290 | ||
bed23cb2 RS |
291 | if (bytepos >= BUF_ZV_BYTE (inbuffer)) |
292 | return -1; | |
6f7f43d5 | 293 | |
00a9a935 RS |
294 | readchar_backlog = -1; |
295 | ||
bed23cb2 RS |
296 | if (! NILP (inbuffer->enable_multibyte_characters)) |
297 | { | |
00a9a935 | 298 | /* Fetch the character code from the buffer. */ |
bed23cb2 RS |
299 | unsigned char *p = BUF_BYTE_ADDRESS (inbuffer, bytepos); |
300 | BUF_INC_POS (inbuffer, bytepos); | |
301 | c = STRING_CHAR (p, bytepos - orig_bytepos); | |
302 | } | |
303 | else | |
304 | { | |
305 | c = BUF_FETCH_BYTE (inbuffer, bytepos); | |
306 | bytepos++; | |
6f7f43d5 RS |
307 | } |
308 | ||
bed23cb2 RS |
309 | XMARKER (readcharfun)->bytepos = bytepos; |
310 | XMARKER (readcharfun)->charpos++; | |
311 | ||
312 | return c; | |
078e7b4a | 313 | } |
ad0153e4 RS |
314 | |
315 | if (EQ (readcharfun, Qlambda)) | |
316 | return read_bytecode_char (0); | |
317 | ||
078e7b4a | 318 | if (EQ (readcharfun, Qget_file_char)) |
2c1b5dbe KH |
319 | { |
320 | c = getc (instream); | |
321 | #ifdef EINTR | |
322 | /* Interrupted reads have been observed while reading over the network */ | |
323 | while (c == EOF && ferror (instream) && errno == EINTR) | |
324 | { | |
325 | clearerr (instream); | |
326 | c = getc (instream); | |
327 | } | |
328 | #endif | |
329 | return c; | |
330 | } | |
078e7b4a | 331 | |
cfff016d | 332 | if (STRINGP (readcharfun)) |
078e7b4a | 333 | { |
bed23cb2 | 334 | if (read_from_string_index >= read_from_string_limit) |
078e7b4a | 335 | c = -1; |
f0354c03 | 336 | else |
bed23cb2 RS |
337 | FETCH_STRING_CHAR_ADVANCE (c, readcharfun, |
338 | read_from_string_index, | |
339 | read_from_string_index_byte); | |
6f7f43d5 | 340 | |
078e7b4a JB |
341 | return c; |
342 | } | |
343 | ||
344 | tem = call0 (readcharfun); | |
345 | ||
265a9e55 | 346 | if (NILP (tem)) |
078e7b4a JB |
347 | return -1; |
348 | return XINT (tem); | |
349 | } | |
350 | ||
351 | /* Unread the character C in the way appropriate for the stream READCHARFUN. | |
352 | If the stream is a user function, call it with the char as argument. */ | |
353 | ||
354 | static void | |
355 | unreadchar (readcharfun, c) | |
356 | Lisp_Object readcharfun; | |
357 | int c; | |
358 | { | |
abb13b09 | 359 | readchar_count--; |
92fddec9 KH |
360 | if (c == -1) |
361 | /* Don't back up the pointer if we're unreading the end-of-input mark, | |
362 | since readchar didn't advance it when we read it. */ | |
363 | ; | |
cfff016d | 364 | else if (BUFFERP (readcharfun)) |
d7760ca9 | 365 | { |
bed23cb2 RS |
366 | struct buffer *b = XBUFFER (readcharfun); |
367 | int bytepos = BUF_PT_BYTE (b); | |
d7760ca9 | 368 | |
00a9a935 RS |
369 | if (readchar_backlog >= 0) |
370 | readchar_backlog++; | |
bed23cb2 | 371 | else |
00a9a935 RS |
372 | { |
373 | BUF_PT (b)--; | |
374 | if (! NILP (b->enable_multibyte_characters)) | |
375 | BUF_DEC_POS (b, bytepos); | |
376 | else | |
377 | bytepos--; | |
d7760ca9 | 378 | |
00a9a935 RS |
379 | BUF_PT_BYTE (b) = bytepos; |
380 | } | |
d7760ca9 | 381 | } |
cfff016d | 382 | else if (MARKERP (readcharfun)) |
d7760ca9 | 383 | { |
bed23cb2 RS |
384 | struct buffer *b = XMARKER (readcharfun)->buffer; |
385 | int bytepos = XMARKER (readcharfun)->bytepos; | |
d7760ca9 | 386 | |
00a9a935 RS |
387 | if (readchar_backlog >= 0) |
388 | readchar_backlog++; | |
bed23cb2 | 389 | else |
00a9a935 RS |
390 | { |
391 | XMARKER (readcharfun)->charpos--; | |
392 | if (! NILP (b->enable_multibyte_characters)) | |
393 | BUF_DEC_POS (b, bytepos); | |
394 | else | |
395 | bytepos--; | |
d7760ca9 | 396 | |
00a9a935 RS |
397 | XMARKER (readcharfun)->bytepos = bytepos; |
398 | } | |
d7760ca9 | 399 | } |
cfff016d | 400 | else if (STRINGP (readcharfun)) |
bed23cb2 RS |
401 | { |
402 | read_from_string_index--; | |
403 | read_from_string_index_byte | |
404 | = string_char_to_byte (readcharfun, read_from_string_index); | |
405 | } | |
ad0153e4 RS |
406 | else if (EQ (readcharfun, Qlambda)) |
407 | read_bytecode_char (1); | |
078e7b4a JB |
408 | else if (EQ (readcharfun, Qget_file_char)) |
409 | ungetc (c, instream); | |
410 | else | |
411 | call1 (readcharfun, make_number (c)); | |
412 | } | |
413 | ||
abb13b09 CW |
414 | static Lisp_Object read_internal_start P_ ((Lisp_Object, Lisp_Object, |
415 | Lisp_Object)); | |
416 | static Lisp_Object read0 P_ ((Lisp_Object)); | |
177c0ea7 | 417 | static Lisp_Object read1 P_ ((Lisp_Object, int *, int)); |
abb13b09 CW |
418 | |
419 | static Lisp_Object read_list P_ ((int, Lisp_Object)); | |
420 | static Lisp_Object read_vector P_ ((Lisp_Object, int)); | |
421 | static int read_multibyte P_ ((int, Lisp_Object)); | |
422 | ||
423 | static Lisp_Object substitute_object_recurse P_ ((Lisp_Object, Lisp_Object, | |
424 | Lisp_Object)); | |
425 | static void substitute_object_in_subtree P_ ((Lisp_Object, | |
426 | Lisp_Object)); | |
427 | static void substitute_in_interval P_ ((INTERVAL, Lisp_Object)); | |
9e062b6c | 428 | |
078e7b4a | 429 | \f |
bed23cb2 | 430 | /* Get a character from the tty. */ |
078e7b4a | 431 | |
3d9b22be JB |
432 | extern Lisp_Object read_char (); |
433 | ||
f42be754 JB |
434 | /* Read input events until we get one that's acceptable for our purposes. |
435 | ||
436 | If NO_SWITCH_FRAME is non-zero, switch-frame events are stashed | |
437 | until we get a character we like, and then stuffed into | |
438 | unread_switch_frame. | |
439 | ||
440 | If ASCII_REQUIRED is non-zero, we check function key events to see | |
441 | if the unmodified version of the symbol has a Qascii_character | |
442 | property, and use that character, if present. | |
443 | ||
444 | If ERROR_NONASCII is non-zero, we signal an error if the input we | |
445 | get isn't an ASCII character with modifiers. If it's zero but | |
446 | ASCII_REQUIRED is non-zero, we just re-read until we get an ASCII | |
bb49a192 RS |
447 | character. |
448 | ||
449 | If INPUT_METHOD is nonzero, we invoke the current input method | |
450 | if the character warrants that. */ | |
cc39bc38 | 451 | |
f42be754 | 452 | Lisp_Object |
bb49a192 RS |
453 | read_filtered_event (no_switch_frame, ascii_required, error_nonascii, |
454 | input_method) | |
455 | int no_switch_frame, ascii_required, error_nonascii, input_method; | |
f42be754 | 456 | { |
153a17b7 KH |
457 | register Lisp_Object val, delayed_switch_frame; |
458 | ||
5dbf89bc | 459 | #ifdef HAVE_WINDOW_SYSTEM |
df6c90d8 GM |
460 | if (display_hourglass_p) |
461 | cancel_hourglass (); | |
5dbf89bc | 462 | #endif |
177c0ea7 | 463 | |
153a17b7 | 464 | delayed_switch_frame = Qnil; |
f42be754 JB |
465 | |
466 | /* Read until we get an acceptable event. */ | |
467 | retry: | |
bb49a192 RS |
468 | val = read_char (0, 0, 0, |
469 | (input_method ? Qnil : Qt), | |
470 | 0); | |
f42be754 | 471 | |
cfff016d | 472 | if (BUFFERP (val)) |
6c82d689 KH |
473 | goto retry; |
474 | ||
f42be754 | 475 | /* switch-frame events are put off until after the next ASCII |
8e6208c5 | 476 | character. This is better than signaling an error just because |
f42be754 JB |
477 | the last characters were typed to a separate minibuffer frame, |
478 | for example. Eventually, some code which can deal with | |
479 | switch-frame events will read it and process it. */ | |
480 | if (no_switch_frame | |
481 | && EVENT_HAS_PARAMETERS (val) | |
482 | && EQ (EVENT_HEAD (val), Qswitch_frame)) | |
483 | { | |
484 | delayed_switch_frame = val; | |
485 | goto retry; | |
486 | } | |
487 | ||
488 | if (ascii_required) | |
489 | { | |
490 | /* Convert certain symbols to their ASCII equivalents. */ | |
cfff016d | 491 | if (SYMBOLP (val)) |
f42be754 | 492 | { |
95384e1e | 493 | Lisp_Object tem, tem1; |
f42be754 JB |
494 | tem = Fget (val, Qevent_symbol_element_mask); |
495 | if (!NILP (tem)) | |
496 | { | |
497 | tem1 = Fget (Fcar (tem), Qascii_character); | |
498 | /* Merge this symbol's modifier bits | |
499 | with the ASCII equivalent of its basic code. */ | |
500 | if (!NILP (tem1)) | |
baf69866 | 501 | XSETFASTINT (val, XINT (tem1) | XINT (Fcar (Fcdr (tem)))); |
f42be754 JB |
502 | } |
503 | } | |
177c0ea7 | 504 | |
f42be754 | 505 | /* If we don't have a character now, deal with it appropriately. */ |
cfff016d | 506 | if (!INTEGERP (val)) |
f42be754 JB |
507 | { |
508 | if (error_nonascii) | |
509 | { | |
1ec84625 | 510 | Vunread_command_events = Fcons (val, Qnil); |
f42be754 JB |
511 | error ("Non-character input-event"); |
512 | } | |
513 | else | |
514 | goto retry; | |
515 | } | |
516 | } | |
517 | ||
518 | if (! NILP (delayed_switch_frame)) | |
519 | unread_switch_frame = delayed_switch_frame; | |
520 | ||
67868d27 PJ |
521 | #if 0 |
522 | ||
5dbf89bc | 523 | #ifdef HAVE_WINDOW_SYSTEM |
df6c90d8 GM |
524 | if (display_hourglass_p) |
525 | start_hourglass (); | |
5dbf89bc | 526 | #endif |
67868d27 PJ |
527 | |
528 | #endif | |
529 | ||
f42be754 | 530 | return val; |
f42be754 JB |
531 | } |
532 | ||
bb49a192 | 533 | DEFUN ("read-char", Fread_char, Sread_char, 0, 2, 0, |
5de38842 PJ |
534 | doc: /* Read a character from the command input (keyboard or macro). |
535 | It is returned as a number. | |
536 | If the user generates an event which is not a character (i.e. a mouse | |
537 | click or function key event), `read-char' signals an error. As an | |
538 | exception, switch-frame events are put off until non-ASCII events can | |
539 | be read. | |
540 | If you want to read non-character events, or ignore them, call | |
541 | `read-event' or `read-char-exclusive' instead. | |
542 | ||
543 | If the optional argument PROMPT is non-nil, display that as a prompt. | |
544 | If the optional argument INHERIT-INPUT-METHOD is non-nil and some | |
545 | input method is turned on in the current buffer, that input method | |
546 | is used for reading a character. */) | |
547 | (prompt, inherit_input_method) | |
fc351d2f | 548 | Lisp_Object prompt, inherit_input_method; |
078e7b4a | 549 | { |
bb49a192 RS |
550 | if (! NILP (prompt)) |
551 | message_with_string ("%s", prompt, 0); | |
fc351d2f | 552 | return read_filtered_event (1, 1, 1, ! NILP (inherit_input_method)); |
078e7b4a JB |
553 | } |
554 | ||
bb49a192 | 555 | DEFUN ("read-event", Fread_event, Sread_event, 0, 2, 0, |
5de38842 PJ |
556 | doc: /* Read an event object from the input stream. |
557 | If the optional argument PROMPT is non-nil, display that as a prompt. | |
558 | If the optional argument INHERIT-INPUT-METHOD is non-nil and some | |
559 | input method is turned on in the current buffer, that input method | |
560 | is used for reading a character. */) | |
561 | (prompt, inherit_input_method) | |
fc351d2f | 562 | Lisp_Object prompt, inherit_input_method; |
078e7b4a | 563 | { |
bb49a192 RS |
564 | if (! NILP (prompt)) |
565 | message_with_string ("%s", prompt, 0); | |
fc351d2f | 566 | return read_filtered_event (0, 0, 0, ! NILP (inherit_input_method)); |
078e7b4a JB |
567 | } |
568 | ||
bb49a192 | 569 | DEFUN ("read-char-exclusive", Fread_char_exclusive, Sread_char_exclusive, 0, 2, 0, |
5de38842 PJ |
570 | doc: /* Read a character from the command input (keyboard or macro). |
571 | It is returned as a number. Non-character events are ignored. | |
572 | ||
573 | If the optional argument PROMPT is non-nil, display that as a prompt. | |
574 | If the optional argument INHERIT-INPUT-METHOD is non-nil and some | |
575 | input method is turned on in the current buffer, that input method | |
576 | is used for reading a character. */) | |
577 | (prompt, inherit_input_method) | |
fc351d2f | 578 | Lisp_Object prompt, inherit_input_method; |
078e7b4a | 579 | { |
bb49a192 RS |
580 | if (! NILP (prompt)) |
581 | message_with_string ("%s", prompt, 0); | |
fc351d2f | 582 | return read_filtered_event (1, 1, 0, ! NILP (inherit_input_method)); |
078e7b4a | 583 | } |
078e7b4a JB |
584 | |
585 | DEFUN ("get-file-char", Fget_file_char, Sget_file_char, 0, 0, 0, | |
5de38842 PJ |
586 | doc: /* Don't use this yourself. */) |
587 | () | |
078e7b4a JB |
588 | { |
589 | register Lisp_Object val; | |
1805de4f | 590 | XSETINT (val, getc (instream)); |
078e7b4a JB |
591 | return val; |
592 | } | |
da84f340 GM |
593 | |
594 | ||
550a625e | 595 | \f |
da84f340 GM |
596 | /* Value is non-zero if the file asswociated with file descriptor FD |
597 | is a compiled Lisp file that's safe to load. Only files compiled | |
598 | with Emacs are safe to load. Files compiled with XEmacs can lead | |
599 | to a crash in Fbyte_code because of an incompatible change in the | |
600 | byte compiler. */ | |
601 | ||
602 | static int | |
603 | safe_to_load_p (fd) | |
604 | int fd; | |
605 | { | |
606 | char buf[512]; | |
607 | int nbytes, i; | |
608 | int safe_p = 1; | |
609 | ||
610 | /* Read the first few bytes from the file, and look for a line | |
611 | specifying the byte compiler version used. */ | |
612 | nbytes = emacs_read (fd, buf, sizeof buf - 1); | |
613 | if (nbytes > 0) | |
614 | { | |
615 | buf[nbytes] = '\0'; | |
616 | ||
617 | /* Skip to the next newline, skipping over the initial `ELC' | |
618 | with NUL bytes following it. */ | |
619 | for (i = 0; i < nbytes && buf[i] != '\n'; ++i) | |
620 | ; | |
621 | ||
622 | if (i < nbytes | |
623 | && fast_c_string_match_ignore_case (Vbytecomp_version_regexp, | |
624 | buf + i) < 0) | |
625 | safe_p = 0; | |
626 | } | |
627 | ||
628 | lseek (fd, 0, SEEK_SET); | |
629 | return safe_p; | |
630 | } | |
631 | ||
632 | ||
7ee3bd7b GM |
633 | /* Callback for record_unwind_protect. Restore the old load list OLD, |
634 | after loading a file successfully. */ | |
635 | ||
636 | static Lisp_Object | |
637 | record_load_unwind (old) | |
638 | Lisp_Object old; | |
639 | { | |
640 | return Vloads_in_progress = old; | |
641 | } | |
642 | ||
164c8bfe RS |
643 | /* This handler function is used via internal_condition_case_1. */ |
644 | ||
645 | static Lisp_Object | |
646 | load_error_handler (data) | |
647 | Lisp_Object data; | |
648 | { | |
649 | return Qnil; | |
650 | } | |
7ee3bd7b | 651 | |
f0a50954 | 652 | DEFUN ("load", Fload, Sload, 1, 5, 0, |
5de38842 PJ |
653 | doc: /* Execute a file of Lisp code named FILE. |
654 | First try FILE with `.elc' appended, then try with `.el', | |
d77b70e5 MR |
655 | then try FILE unmodified (the exact suffixes are determined by |
656 | `load-suffixes'). Environment variable references in FILE | |
5de38842 PJ |
657 | are replaced with their values by calling `substitute-in-file-name'. |
658 | This function searches the directories in `load-path'. | |
659 | If optional second arg NOERROR is non-nil, | |
660 | report no error if FILE doesn't exist. | |
661 | Print messages at start and end of loading unless | |
662 | optional third arg NOMESSAGE is non-nil. | |
663 | If optional fourth arg NOSUFFIX is non-nil, don't try adding | |
664 | suffixes `.elc' or `.el' to the specified name FILE. | |
665 | If optional fifth arg MUST-SUFFIX is non-nil, insist on | |
666 | the suffix `.elc' or `.el'; don't accept just FILE unless | |
667 | it ends in one of those suffixes or includes a directory name. | |
668 | Return t if file exists. */) | |
669 | (file, noerror, nomessage, nosuffix, must_suffix) | |
f0a50954 | 670 | Lisp_Object file, noerror, nomessage, nosuffix, must_suffix; |
078e7b4a JB |
671 | { |
672 | register FILE *stream; | |
673 | register int fd = -1; | |
674 | register Lisp_Object lispstream; | |
aed13378 | 675 | int count = SPECPDL_INDEX (); |
078e7b4a JB |
676 | Lisp_Object temp; |
677 | struct gcpro gcpro1; | |
eb191db2 | 678 | Lisp_Object found, efound; |
04fc68e7 RS |
679 | /* 1 means we printed the ".el is newer" message. */ |
680 | int newer = 0; | |
681 | /* 1 means we are loading a compiled file. */ | |
682 | int compiled = 0; | |
c2225d00 | 683 | Lisp_Object handler; |
456c67a4 | 684 | int safe_p = 1; |
229ba775 | 685 | char *fmode = "r"; |
317073d5 | 686 | #ifdef DOS_NT |
229ba775 | 687 | fmode = "rt"; |
317073d5 | 688 | #endif /* DOS_NT */ |
078e7b4a | 689 | |
b7826503 | 690 | CHECK_STRING (file); |
078e7b4a | 691 | |
c2225d00 | 692 | /* If file name is magic, call the handler. */ |
e61b9b87 SM |
693 | /* This shouldn't be necessary any more now that `openp' handles it right. |
694 | handler = Ffind_file_name_handler (file, Qload); | |
695 | if (!NILP (handler)) | |
696 | return call5 (handler, Qload, file, noerror, nomessage, nosuffix); */ | |
c2225d00 | 697 | |
07a0bda3 RS |
698 | /* Do this after the handler to avoid |
699 | the need to gcpro noerror, nomessage and nosuffix. | |
e61b9b87 SM |
700 | (Below here, we care only whether they are nil or not.) |
701 | The presence of this call is the result of a historical accident: | |
702 | it used to be in every file-operations and when it got removed | |
703 | everywhere, it accidentally stayed here. Since then, enough people | |
704 | supposedly have things like (load "$PROJECT/foo.el") in their .emacs | |
705 | that it seemed risky to remove. */ | |
164c8bfe RS |
706 | if (! NILP (noerror)) |
707 | { | |
708 | file = internal_condition_case_1 (Fsubstitute_in_file_name, file, | |
709 | Qt, load_error_handler); | |
710 | if (NILP (file)) | |
711 | return Qnil; | |
712 | } | |
713 | else | |
714 | file = Fsubstitute_in_file_name (file); | |
177c0ea7 | 715 | |
07a0bda3 | 716 | |
078e7b4a JB |
717 | /* Avoid weird lossage with null string as arg, |
718 | since it would try to load a directory as a Lisp file */ | |
d5db4077 | 719 | if (SCHARS (file) > 0) |
078e7b4a | 720 | { |
d5db4077 | 721 | int size = SBYTES (file); |
e61b9b87 | 722 | Lisp_Object tmp[2]; |
211f7dcd | 723 | |
0745dce9 | 724 | GCPRO1 (file); |
211f7dcd RS |
725 | |
726 | if (! NILP (must_suffix)) | |
727 | { | |
728 | /* Don't insist on adding a suffix if FILE already ends with one. */ | |
729 | if (size > 3 | |
d5db4077 | 730 | && !strcmp (SDATA (file) + size - 3, ".el")) |
211f7dcd RS |
731 | must_suffix = Qnil; |
732 | else if (size > 4 | |
d5db4077 | 733 | && !strcmp (SDATA (file) + size - 4, ".elc")) |
211f7dcd RS |
734 | must_suffix = Qnil; |
735 | /* Don't insist on adding a suffix | |
736 | if the argument includes a directory name. */ | |
737 | else if (! NILP (Ffile_name_directory (file))) | |
738 | must_suffix = Qnil; | |
739 | } | |
740 | ||
f0a50954 | 741 | fd = openp (Vload_path, file, |
e61b9b87 SM |
742 | (!NILP (nosuffix) ? Qnil |
743 | : !NILP (must_suffix) ? Vload_suffixes | |
744 | : Fappend (2, (tmp[0] = Vload_suffixes, | |
745 | tmp[1] = default_suffixes, | |
746 | tmp))), | |
86d00812 | 747 | &found, Qnil); |
5a6e5452 | 748 | UNGCPRO; |
078e7b4a JB |
749 | } |
750 | ||
96dc0f4e | 751 | if (fd == -1) |
078e7b4a | 752 | { |
265a9e55 | 753 | if (NILP (noerror)) |
164c8bfe RS |
754 | Fsignal (Qfile_error, Fcons (build_string ("Cannot open load file"), |
755 | Fcons (file, Qnil))); | |
078e7b4a JB |
756 | else |
757 | return Qnil; | |
758 | } | |
759 | ||
ba0d1195 | 760 | /* Tell startup.el whether or not we found the user's init file. */ |
4116ab9f KH |
761 | if (EQ (Qt, Vuser_init_file)) |
762 | Vuser_init_file = found; | |
763 | ||
96dc0f4e MB |
764 | /* If FD is -2, that means openp found a magic file. */ |
765 | if (fd == -2) | |
74549846 | 766 | { |
5e24a1f7 KH |
767 | if (NILP (Fequal (found, file))) |
768 | /* If FOUND is a different file name from FILE, | |
769 | find its handler even if we have already inhibited | |
770 | the `load' operation on FILE. */ | |
771 | handler = Ffind_file_name_handler (found, Qt); | |
772 | else | |
773 | handler = Ffind_file_name_handler (found, Qload); | |
774 | if (! NILP (handler)) | |
775 | return call5 (handler, Qload, found, noerror, nomessage, Qt); | |
74549846 RS |
776 | } |
777 | ||
550a625e GM |
778 | /* Check if we're stuck in a recursive load cycle. |
779 | ||
780 | 2000-09-21: It's not possible to just check for the file loaded | |
781 | being a member of Vloads_in_progress. This fails because of the | |
782 | way the byte compiler currently works; `provide's are not | |
783 | evaluted, see font-lock.el/jit-lock.el as an example. This | |
784 | leads to a certain amount of ``normal'' recursion. | |
785 | ||
786 | Also, just loading a file recursively is not always an error in | |
787 | the general case; the second load may do something different. */ | |
3ba6fd9a RS |
788 | { |
789 | int count = 0; | |
790 | Lisp_Object tem; | |
791 | for (tem = Vloads_in_progress; CONSP (tem); tem = XCDR (tem)) | |
792 | if (!NILP (Fequal (found, XCAR (tem)))) | |
793 | count++; | |
794 | if (count > 3) | |
795 | Fsignal (Qerror, Fcons (build_string ("Recursive load"), | |
796 | Fcons (found, Vloads_in_progress))); | |
797 | record_unwind_protect (record_load_unwind, Vloads_in_progress); | |
798 | Vloads_in_progress = Fcons (found, Vloads_in_progress); | |
799 | } | |
7ee3bd7b | 800 | |
a1c89c0a | 801 | if (!bcmp (SDATA (found) + SBYTES (found) - 4, |
96dc0f4e MB |
802 | ".elc", 4)) |
803 | /* Load .elc files directly, but not when they are | |
804 | remote and have no handler! */ | |
078e7b4a | 805 | { |
96dc0f4e | 806 | if (fd != -2) |
da84f340 | 807 | { |
96dc0f4e MB |
808 | struct stat s1, s2; |
809 | int result; | |
da84f340 | 810 | |
96dc0f4e MB |
811 | if (!safe_to_load_p (fd)) |
812 | { | |
813 | safe_p = 0; | |
814 | if (!load_dangerous_libraries) | |
e63304b7 DL |
815 | { |
816 | if (fd >= 0) | |
817 | emacs_close (fd); | |
818 | error ("File `%s' was not compiled in Emacs", | |
819 | SDATA (found)); | |
820 | } | |
96dc0f4e MB |
821 | else if (!NILP (nomessage)) |
822 | message_with_string ("File `%s' not compiled in Emacs", found, 1); | |
823 | } | |
04fc68e7 | 824 | |
96dc0f4e MB |
825 | compiled = 1; |
826 | ||
eb191db2 EZ |
827 | GCPRO1 (efound); |
828 | efound = ENCODE_FILE (found); | |
829 | ||
26fbf20b | 830 | #ifdef DOS_NT |
96dc0f4e | 831 | fmode = "rb"; |
26fbf20b | 832 | #endif /* DOS_NT */ |
d5db4077 | 833 | stat ((char *)SDATA (efound), &s1); |
a1c89c0a | 834 | SSET (efound, SBYTES (efound) - 1, 0); |
d5db4077 | 835 | result = stat ((char *)SDATA (efound), &s2); |
a1c89c0a | 836 | SSET (efound, SBYTES (efound) - 1, 'c'); |
eb191db2 EZ |
837 | UNGCPRO; |
838 | ||
96dc0f4e MB |
839 | if (result >= 0 && (unsigned) s1.st_mtime < (unsigned) s2.st_mtime) |
840 | { | |
841 | /* Make the progress messages mention that source is newer. */ | |
842 | newer = 1; | |
04fc68e7 | 843 | |
96dc0f4e | 844 | /* If we won't print another message, mention this anyway. */ |
714d8c39 GM |
845 | if (!NILP (nomessage)) |
846 | { | |
847 | Lisp_Object file; | |
848 | file = Fsubstring (found, make_number (0), make_number (-1)); | |
849 | message_with_string ("Source file `%s' newer than byte-compiled file", | |
c33ef7c4 | 850 | file, 1); |
714d8c39 | 851 | } |
96dc0f4e | 852 | } |
51ac6f83 | 853 | } |
078e7b4a | 854 | } |
fe0e03f3 KH |
855 | else |
856 | { | |
857 | /* We are loading a source file (*.el). */ | |
858 | if (!NILP (Vload_source_file_function)) | |
859 | { | |
7ee3bd7b | 860 | Lisp_Object val; |
96dc0f4e MB |
861 | |
862 | if (fd >= 0) | |
68c45bf0 | 863 | emacs_close (fd); |
7ee3bd7b GM |
864 | val = call4 (Vload_source_file_function, found, file, |
865 | NILP (noerror) ? Qnil : Qt, | |
866 | NILP (nomessage) ? Qnil : Qt); | |
867 | return unbind_to (count, val); | |
fe0e03f3 KH |
868 | } |
869 | } | |
078e7b4a | 870 | |
229ba775 | 871 | #ifdef WINDOWSNT |
68c45bf0 | 872 | emacs_close (fd); |
eb191db2 EZ |
873 | GCPRO1 (efound); |
874 | efound = ENCODE_FILE (found); | |
d5db4077 | 875 | stream = fopen ((char *) SDATA (efound), fmode); |
eb191db2 | 876 | UNGCPRO; |
229ba775 EZ |
877 | #else /* not WINDOWSNT */ |
878 | stream = fdopen (fd, fmode); | |
879 | #endif /* not WINDOWSNT */ | |
078e7b4a JB |
880 | if (stream == 0) |
881 | { | |
68c45bf0 | 882 | emacs_close (fd); |
d5db4077 | 883 | error ("Failure to create stdio stream for %s", SDATA (file)); |
078e7b4a JB |
884 | } |
885 | ||
4b104c41 RS |
886 | if (! NILP (Vpurify_flag)) |
887 | Vpreloaded_file_list = Fcons (file, Vpreloaded_file_list); | |
888 | ||
04fc68e7 RS |
889 | if (NILP (nomessage)) |
890 | { | |
da84f340 GM |
891 | if (!safe_p) |
892 | message_with_string ("Loading %s (compiled; note unsafe, not compiled in Emacs)...", | |
893 | file, 1); | |
894 | else if (!compiled) | |
e28552a4 | 895 | message_with_string ("Loading %s (source)...", file, 1); |
db5cae4b | 896 | else if (newer) |
e28552a4 RS |
897 | message_with_string ("Loading %s (compiled; note, source file is newer)...", |
898 | file, 1); | |
db5cae4b | 899 | else /* The typical case; compiled file newer than source file. */ |
e28552a4 | 900 | message_with_string ("Loading %s...", file, 1); |
04fc68e7 | 901 | } |
078e7b4a | 902 | |
0745dce9 | 903 | GCPRO1 (file); |
838abf56 | 904 | lispstream = Fcons (Qnil, Qnil); |
f5df591a KR |
905 | XSETCARFASTINT (lispstream, (EMACS_UINT)stream >> 16); |
906 | XSETCDRFASTINT (lispstream, (EMACS_UINT)stream & 0xffff); | |
078e7b4a | 907 | record_unwind_protect (load_unwind, lispstream); |
d2c6be7f | 908 | record_unwind_protect (load_descriptor_unwind, load_descriptor_list); |
20ea2964 | 909 | specbind (Qload_file_name, found); |
74549846 | 910 | specbind (Qinhibit_file_name_operation, Qnil); |
d2c6be7f RS |
911 | load_descriptor_list |
912 | = Fcons (make_number (fileno (stream)), load_descriptor_list); | |
078e7b4a | 913 | load_in_progress++; |
976350af | 914 | readevalloop (Qget_file_char, stream, file, Feval, 0, Qnil, Qnil); |
078e7b4a JB |
915 | unbind_to (count, Qnil); |
916 | ||
917 | /* Run any load-hooks for this file. */ | |
0745dce9 | 918 | temp = Fassoc (file, Vafter_load_alist); |
265a9e55 | 919 | if (!NILP (temp)) |
078e7b4a JB |
920 | Fprogn (Fcdr (temp)); |
921 | UNGCPRO; | |
922 | ||
b2a30870 RS |
923 | if (saved_doc_string) |
924 | free (saved_doc_string); | |
925 | saved_doc_string = 0; | |
926 | saved_doc_string_size = 0; | |
927 | ||
c15cfd1f | 928 | if (prev_saved_doc_string) |
3cb65b0e | 929 | xfree (prev_saved_doc_string); |
c15cfd1f RS |
930 | prev_saved_doc_string = 0; |
931 | prev_saved_doc_string_size = 0; | |
932 | ||
265a9e55 | 933 | if (!noninteractive && NILP (nomessage)) |
04fc68e7 | 934 | { |
da84f340 GM |
935 | if (!safe_p) |
936 | message_with_string ("Loading %s (compiled; note unsafe, not compiled in Emacs)...done", | |
937 | file, 1); | |
938 | else if (!compiled) | |
e28552a4 | 939 | message_with_string ("Loading %s (source)...done", file, 1); |
db5cae4b | 940 | else if (newer) |
e28552a4 RS |
941 | message_with_string ("Loading %s (compiled; note, source file is newer)...done", |
942 | file, 1); | |
db5cae4b | 943 | else /* The typical case; compiled file newer than source file. */ |
e28552a4 | 944 | message_with_string ("Loading %s...done", file, 1); |
04fc68e7 | 945 | } |
7ee3bd7b | 946 | |
11810d78 SM |
947 | if (!NILP (Fequal (build_string ("obsolete"), |
948 | Ffile_name_nondirectory | |
949 | (Fdirectory_file_name (Ffile_name_directory (found)))))) | |
950 | message_with_string ("Package %s is obsolete", file, 1); | |
951 | ||
078e7b4a JB |
952 | return Qt; |
953 | } | |
954 | ||
955 | static Lisp_Object | |
956 | load_unwind (stream) /* used as unwind-protect function in load */ | |
957 | Lisp_Object stream; | |
958 | { | |
c1d497be KR |
959 | fclose ((FILE *) (XFASTINT (XCAR (stream)) << 16 |
960 | | XFASTINT (XCDR (stream)))); | |
078e7b4a JB |
961 | if (--load_in_progress < 0) load_in_progress = 0; |
962 | return Qnil; | |
963 | } | |
964 | ||
d2c6be7f RS |
965 | static Lisp_Object |
966 | load_descriptor_unwind (oldlist) | |
967 | Lisp_Object oldlist; | |
968 | { | |
969 | load_descriptor_list = oldlist; | |
838abf56 | 970 | return Qnil; |
d2c6be7f RS |
971 | } |
972 | ||
973 | /* Close all descriptors in use for Floads. | |
974 | This is used when starting a subprocess. */ | |
975 | ||
976 | void | |
977 | close_load_descs () | |
978 | { | |
f3849f25 | 979 | #ifndef WINDOWSNT |
d2c6be7f | 980 | Lisp_Object tail; |
c1d497be | 981 | for (tail = load_descriptor_list; !NILP (tail); tail = XCDR (tail)) |
68c45bf0 | 982 | emacs_close (XFASTINT (XCAR (tail))); |
f3849f25 | 983 | #endif |
d2c6be7f | 984 | } |
078e7b4a JB |
985 | \f |
986 | static int | |
987 | complete_filename_p (pathname) | |
988 | Lisp_Object pathname; | |
989 | { | |
4b2dd274 | 990 | register const unsigned char *s = SDATA (pathname); |
317073d5 | 991 | return (IS_DIRECTORY_SEP (s[0]) |
d5db4077 | 992 | || (SCHARS (pathname) > 2 |
317073d5 | 993 | && IS_DEVICE_SEP (s[1]) && IS_DIRECTORY_SEP (s[2])) |
078e7b4a JB |
994 | #ifdef ALTOS |
995 | || *s == '@' | |
996 | #endif | |
997 | #ifdef VMS | |
998 | || index (s, ':') | |
999 | #endif /* VMS */ | |
1000 | ); | |
1001 | } | |
1002 | ||
86d00812 SM |
1003 | DEFUN ("locate-file-internal", Flocate_file_internal, Slocate_file_internal, 2, 4, 0, |
1004 | doc: /* Search for FILENAME through PATH. | |
1005 | If SUFFIXES is non-nil, it should be a list of suffixes to append to | |
1006 | file name when searching. | |
1007 | If non-nil, PREDICATE is used instead of `file-readable-p'. | |
1008 | PREDICATE can also be an integer to pass to the access(2) function, | |
1009 | in which case file-name-handlers are ignored. */) | |
1010 | (filename, path, suffixes, predicate) | |
1011 | Lisp_Object filename, path, suffixes, predicate; | |
1012 | { | |
1013 | Lisp_Object file; | |
1014 | int fd = openp (path, filename, suffixes, &file, predicate); | |
1015 | if (NILP (predicate) && fd > 0) | |
1016 | close (fd); | |
1017 | return file; | |
1018 | } | |
1019 | ||
1020 | ||
078e7b4a JB |
1021 | /* Search for a file whose name is STR, looking in directories |
1022 | in the Lisp list PATH, and trying suffixes from SUFFIX. | |
078e7b4a JB |
1023 | On success, returns a file descriptor. On failure, returns -1. |
1024 | ||
e61b9b87 SM |
1025 | SUFFIXES is a list of strings containing possible suffixes. |
1026 | The empty suffix is automatically added iff the list is empty. | |
1027 | ||
86d00812 SM |
1028 | PREDICATE non-nil means don't open the files, |
1029 | just look for one that satisfies the predicate. In this case, | |
1030 | returns 1 on success. The predicate can be a lisp function or | |
1031 | an integer to pass to `access' (in which case file-name-handlers | |
1032 | are ignored). | |
078e7b4a JB |
1033 | |
1034 | If STOREPTR is nonzero, it points to a slot where the name of | |
1035 | the file actually found should be stored as a Lisp string. | |
74549846 RS |
1036 | nil is stored there on failure. |
1037 | ||
96dc0f4e | 1038 | If the file we find is remote, return -2 |
86d00812 | 1039 | but store the found remote file name in *STOREPTR. */ |
078e7b4a JB |
1040 | |
1041 | int | |
86d00812 | 1042 | openp (path, str, suffixes, storeptr, predicate) |
078e7b4a | 1043 | Lisp_Object path, str; |
e61b9b87 | 1044 | Lisp_Object suffixes; |
078e7b4a | 1045 | Lisp_Object *storeptr; |
86d00812 | 1046 | Lisp_Object predicate; |
078e7b4a JB |
1047 | { |
1048 | register int fd; | |
1049 | int fn_size = 100; | |
1050 | char buf[100]; | |
1051 | register char *fn = buf; | |
1052 | int absolute = 0; | |
1053 | int want_size; | |
74549846 | 1054 | Lisp_Object filename; |
078e7b4a | 1055 | struct stat st; |
eb191db2 EZ |
1056 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5, gcpro6; |
1057 | Lisp_Object string, tail, encoded_fn; | |
e61b9b87 SM |
1058 | int max_suffix_len = 0; |
1059 | ||
6f8eafd1 SM |
1060 | CHECK_STRING (str); |
1061 | ||
e61b9b87 SM |
1062 | for (tail = suffixes; CONSP (tail); tail = XCDR (tail)) |
1063 | { | |
f5df591a | 1064 | CHECK_STRING_CAR (tail); |
e61b9b87 | 1065 | max_suffix_len = max (max_suffix_len, |
d5db4077 | 1066 | SBYTES (XCAR (tail))); |
e61b9b87 | 1067 | } |
078e7b4a | 1068 | |
990ff03c | 1069 | string = filename = Qnil; |
eb191db2 EZ |
1070 | GCPRO6 (str, string, filename, path, suffixes, encoded_fn); |
1071 | ||
078e7b4a JB |
1072 | if (storeptr) |
1073 | *storeptr = Qnil; | |
1074 | ||
1075 | if (complete_filename_p (str)) | |
1076 | absolute = 1; | |
1077 | ||
e61b9b87 | 1078 | for (; CONSP (path); path = XCDR (path)) |
078e7b4a | 1079 | { |
e61b9b87 | 1080 | filename = Fexpand_file_name (str, XCAR (path)); |
078e7b4a JB |
1081 | if (!complete_filename_p (filename)) |
1082 | /* If there are non-absolute elts in PATH (eg ".") */ | |
1083 | /* Of course, this could conceivably lose if luser sets | |
1084 | default-directory to be something non-absolute... */ | |
1085 | { | |
1086 | filename = Fexpand_file_name (filename, current_buffer->directory); | |
1087 | if (!complete_filename_p (filename)) | |
1088 | /* Give up on this path element! */ | |
1089 | continue; | |
1090 | } | |
1091 | ||
1092 | /* Calculate maximum size of any filename made from | |
1093 | this path element/specified file name and any possible suffix. */ | |
d5db4077 | 1094 | want_size = max_suffix_len + SBYTES (filename) + 1; |
078e7b4a JB |
1095 | if (fn_size < want_size) |
1096 | fn = (char *) alloca (fn_size = 100 + want_size); | |
1097 | ||
078e7b4a | 1098 | /* Loop over suffixes. */ |
e61b9b87 SM |
1099 | for (tail = NILP (suffixes) ? default_suffixes : suffixes; |
1100 | CONSP (tail); tail = XCDR (tail)) | |
078e7b4a | 1101 | { |
d5db4077 | 1102 | int lsuffix = SBYTES (XCAR (tail)); |
74549846 | 1103 | Lisp_Object handler; |
eb191db2 | 1104 | int exists; |
078e7b4a | 1105 | |
c49afcd7 RS |
1106 | /* Concatenate path element/specified name with the suffix. |
1107 | If the directory starts with /:, remove that. */ | |
d5db4077 KR |
1108 | if (SCHARS (filename) > 2 |
1109 | && SREF (filename, 0) == '/' | |
1110 | && SREF (filename, 1) == ':') | |
c49afcd7 | 1111 | { |
d5db4077 KR |
1112 | strncpy (fn, SDATA (filename) + 2, |
1113 | SBYTES (filename) - 2); | |
1114 | fn[SBYTES (filename) - 2] = 0; | |
c49afcd7 RS |
1115 | } |
1116 | else | |
1117 | { | |
d5db4077 KR |
1118 | strncpy (fn, SDATA (filename), |
1119 | SBYTES (filename)); | |
1120 | fn[SBYTES (filename)] = 0; | |
c49afcd7 RS |
1121 | } |
1122 | ||
078e7b4a | 1123 | if (lsuffix != 0) /* Bug happens on CCI if lsuffix is 0. */ |
d5db4077 | 1124 | strncat (fn, SDATA (XCAR (tail)), lsuffix); |
eb191db2 | 1125 | |
74549846 | 1126 | /* Check that the file exists and is not a directory. */ |
e61b9b87 SM |
1127 | /* We used to only check for handlers on non-absolute file names: |
1128 | if (absolute) | |
1129 | handler = Qnil; | |
1130 | else | |
1131 | handler = Ffind_file_name_handler (filename, Qfile_exists_p); | |
1132 | It's not clear why that was the case and it breaks things like | |
1133 | (load "/bar.el") where the file is actually "/bar.el.gz". */ | |
eb191db2 | 1134 | string = build_string (fn); |
4773b8ca | 1135 | handler = Ffind_file_name_handler (string, Qfile_exists_p); |
86d00812 SM |
1136 | if ((!NILP (handler) || !NILP (predicate)) && !NATNUMP (predicate)) |
1137 | { | |
1138 | if (NILP (predicate)) | |
1139 | exists = !NILP (Ffile_readable_p (string)); | |
1140 | else | |
1141 | exists = !NILP (call1 (predicate, string)); | |
eb191db2 | 1142 | if (exists && !NILP (Ffile_directory_p (string))) |
74549846 RS |
1143 | exists = 0; |
1144 | ||
1145 | if (exists) | |
078e7b4a JB |
1146 | { |
1147 | /* We succeeded; return this descriptor and filename. */ | |
1148 | if (storeptr) | |
eb191db2 | 1149 | *storeptr = string; |
5ef2a3c0 | 1150 | UNGCPRO; |
96dc0f4e | 1151 | return -2; |
74549846 RS |
1152 | } |
1153 | } | |
1154 | else | |
1155 | { | |
4b2dd274 | 1156 | const char *pfn; |
eb191db2 EZ |
1157 | |
1158 | encoded_fn = ENCODE_FILE (string); | |
d5db4077 | 1159 | pfn = SDATA (encoded_fn); |
eb191db2 EZ |
1160 | exists = (stat (pfn, &st) >= 0 |
1161 | && (st.st_mode & S_IFMT) != S_IFDIR); | |
74549846 RS |
1162 | if (exists) |
1163 | { | |
1164 | /* Check that we can access or open it. */ | |
86d00812 SM |
1165 | if (NATNUMP (predicate)) |
1166 | fd = (access (pfn, XFASTINT (predicate)) == 0) ? 1 : -1; | |
74549846 | 1167 | else |
eb191db2 | 1168 | fd = emacs_open (pfn, O_RDONLY, 0); |
74549846 RS |
1169 | |
1170 | if (fd >= 0) | |
1171 | { | |
1172 | /* We succeeded; return this descriptor and filename. */ | |
1173 | if (storeptr) | |
eb191db2 | 1174 | *storeptr = string; |
74549846 RS |
1175 | UNGCPRO; |
1176 | return fd; | |
1177 | } | |
078e7b4a JB |
1178 | } |
1179 | } | |
078e7b4a | 1180 | } |
5a6e5452 | 1181 | if (absolute) |
5ef2a3c0 | 1182 | break; |
078e7b4a JB |
1183 | } |
1184 | ||
5ef2a3c0 KH |
1185 | UNGCPRO; |
1186 | return -1; | |
078e7b4a JB |
1187 | } |
1188 | ||
1189 | \f | |
ae321d28 RS |
1190 | /* Merge the list we've accumulated of globals from the current input source |
1191 | into the load_history variable. The details depend on whether | |
1192 | the source has an associated file name or not. */ | |
1193 | ||
1194 | static void | |
1195 | build_load_history (stream, source) | |
1196 | FILE *stream; | |
1197 | Lisp_Object source; | |
1198 | { | |
1199 | register Lisp_Object tail, prev, newelt; | |
1200 | register Lisp_Object tem, tem2; | |
1201 | register int foundit, loading; | |
1202 | ||
1203 | loading = stream || !NARROWED; | |
1204 | ||
1205 | tail = Vload_history; | |
1206 | prev = Qnil; | |
1207 | foundit = 0; | |
86d00812 | 1208 | while (CONSP (tail)) |
ae321d28 | 1209 | { |
86d00812 | 1210 | tem = XCAR (tail); |
ae321d28 RS |
1211 | |
1212 | /* Find the feature's previous assoc list... */ | |
1213 | if (!NILP (Fequal (source, Fcar (tem)))) | |
1214 | { | |
1215 | foundit = 1; | |
1216 | ||
1217 | /* If we're loading, remove it. */ | |
1218 | if (loading) | |
86d00812 | 1219 | { |
ae321d28 | 1220 | if (NILP (prev)) |
86d00812 | 1221 | Vload_history = XCDR (tail); |
ae321d28 | 1222 | else |
86d00812 | 1223 | Fsetcdr (prev, XCDR (tail)); |
ae321d28 RS |
1224 | } |
1225 | ||
1226 | /* Otherwise, cons on new symbols that are not already members. */ | |
1227 | else | |
1228 | { | |
1229 | tem2 = Vcurrent_load_list; | |
1230 | ||
1231 | while (CONSP (tem2)) | |
1232 | { | |
86d00812 | 1233 | newelt = XCAR (tem2); |
ae321d28 | 1234 | |
d642e4f9 | 1235 | if (NILP (Fmember (newelt, tem))) |
86d00812 SM |
1236 | Fsetcar (tail, Fcons (XCAR (tem), |
1237 | Fcons (newelt, XCDR (tem)))); | |
ae321d28 | 1238 | |
86d00812 | 1239 | tem2 = XCDR (tem2); |
ae321d28 RS |
1240 | QUIT; |
1241 | } | |
1242 | } | |
1243 | } | |
1244 | else | |
1245 | prev = tail; | |
86d00812 | 1246 | tail = XCDR (tail); |
ae321d28 RS |
1247 | QUIT; |
1248 | } | |
1249 | ||
8a1f1537 RS |
1250 | /* If we're loading, cons the new assoc onto the front of load-history, |
1251 | the most-recently-loaded position. Also do this if we didn't find | |
1252 | an existing member for the current source. */ | |
1253 | if (loading || !foundit) | |
1254 | Vload_history = Fcons (Fnreverse (Vcurrent_load_list), | |
1255 | Vload_history); | |
ae321d28 RS |
1256 | } |
1257 | ||
078e7b4a | 1258 | Lisp_Object |
232ccf27 DL |
1259 | unreadpure (junk) /* Used as unwind-protect function in readevalloop */ |
1260 | Lisp_Object junk; | |
078e7b4a JB |
1261 | { |
1262 | read_pure = 0; | |
1263 | return Qnil; | |
1264 | } | |
1265 | ||
94e554db RS |
1266 | static Lisp_Object |
1267 | readevalloop_1 (old) | |
1268 | Lisp_Object old; | |
1269 | { | |
1270 | load_convert_to_unibyte = ! NILP (old); | |
1271 | return Qnil; | |
1272 | } | |
1273 | ||
9c97398c GM |
1274 | /* Signal an `end-of-file' error, if possible with file name |
1275 | information. */ | |
1276 | ||
1277 | static void | |
1278 | end_of_file_error () | |
1279 | { | |
1280 | Lisp_Object data; | |
1281 | ||
1282 | if (STRINGP (Vload_file_name)) | |
1283 | data = Fcons (Vload_file_name, Qnil); | |
1284 | else | |
1285 | data = Qnil; | |
1286 | ||
1287 | Fsignal (Qend_of_file, data); | |
1288 | } | |
1289 | ||
94e554db | 1290 | /* UNIBYTE specifies how to set load_convert_to_unibyte |
976350af RS |
1291 | for this invocation. |
1292 | READFUN, if non-nil, is used instead of `read'. */ | |
94e554db | 1293 | |
078e7b4a | 1294 | static void |
976350af | 1295 | readevalloop (readcharfun, stream, sourcename, evalfun, printflag, unibyte, readfun) |
078e7b4a | 1296 | Lisp_Object readcharfun; |
ae321d28 RS |
1297 | FILE *stream; |
1298 | Lisp_Object sourcename; | |
078e7b4a JB |
1299 | Lisp_Object (*evalfun) (); |
1300 | int printflag; | |
976350af | 1301 | Lisp_Object unibyte, readfun; |
078e7b4a JB |
1302 | { |
1303 | register int c; | |
1304 | register Lisp_Object val; | |
aed13378 | 1305 | int count = SPECPDL_INDEX (); |
8a1f1537 | 1306 | struct gcpro gcpro1; |
49cf7ff4 | 1307 | struct buffer *b = 0; |
f38952fe | 1308 | int continue_reading_p; |
49cf7ff4 RS |
1309 | |
1310 | if (BUFFERP (readcharfun)) | |
1311 | b = XBUFFER (readcharfun); | |
1312 | else if (MARKERP (readcharfun)) | |
1313 | b = XMARKER (readcharfun)->buffer; | |
078e7b4a JB |
1314 | |
1315 | specbind (Qstandard_input, readcharfun); | |
8a1f1537 | 1316 | specbind (Qcurrent_load_list, Qnil); |
94e554db RS |
1317 | record_unwind_protect (readevalloop_1, load_convert_to_unibyte ? Qt : Qnil); |
1318 | load_convert_to_unibyte = !NILP (unibyte); | |
078e7b4a | 1319 | |
00a9a935 | 1320 | readchar_backlog = -1; |
6f7f43d5 | 1321 | |
8a1f1537 | 1322 | GCPRO1 (sourcename); |
ae321d28 | 1323 | |
ae321d28 RS |
1324 | LOADHIST_ATTACH (sourcename); |
1325 | ||
f38952fe GM |
1326 | continue_reading_p = 1; |
1327 | while (continue_reading_p) | |
078e7b4a | 1328 | { |
49cf7ff4 RS |
1329 | if (b != 0 && NILP (b->name)) |
1330 | error ("Reading from killed buffer"); | |
1331 | ||
078e7b4a JB |
1332 | instream = stream; |
1333 | c = READCHAR; | |
1334 | if (c == ';') | |
1335 | { | |
1336 | while ((c = READCHAR) != '\n' && c != -1); | |
1337 | continue; | |
1338 | } | |
1339 | if (c < 0) break; | |
6069d957 RS |
1340 | |
1341 | /* Ignore whitespace here, so we can detect eof. */ | |
1342 | if (c == ' ' || c == '\t' || c == '\n' || c == '\f' || c == '\r') | |
1343 | continue; | |
078e7b4a | 1344 | |
265a9e55 | 1345 | if (!NILP (Vpurify_flag) && c == '(') |
078e7b4a | 1346 | { |
aed13378 | 1347 | int count1 = SPECPDL_INDEX (); |
078e7b4a JB |
1348 | record_unwind_protect (unreadpure, Qnil); |
1349 | val = read_list (-1, readcharfun); | |
0e326373 | 1350 | unbind_to (count1, Qnil); |
078e7b4a JB |
1351 | } |
1352 | else | |
1353 | { | |
1354 | UNREAD (c); | |
4ad679f9 | 1355 | read_objects = Qnil; |
f38952fe GM |
1356 | if (!NILP (readfun)) |
1357 | { | |
1358 | val = call1 (readfun, readcharfun); | |
1359 | ||
1360 | /* If READCHARFUN has set point to ZV, we should | |
1361 | stop reading, even if the form read sets point | |
1362 | to a different value when evaluated. */ | |
1363 | if (BUFFERP (readcharfun)) | |
1364 | { | |
1365 | struct buffer *b = XBUFFER (readcharfun); | |
1366 | if (BUF_PT (b) == BUF_ZV (b)) | |
1367 | continue_reading_p = 0; | |
1368 | } | |
1369 | } | |
976350af | 1370 | else if (! NILP (Vload_read_function)) |
84a15045 | 1371 | val = call1 (Vload_read_function, readcharfun); |
976350af | 1372 | else |
abb13b09 | 1373 | val = read_internal_start (readcharfun, Qnil, Qnil); |
078e7b4a JB |
1374 | } |
1375 | ||
1376 | val = (*evalfun) (val); | |
f38952fe | 1377 | |
078e7b4a JB |
1378 | if (printflag) |
1379 | { | |
1380 | Vvalues = Fcons (val, Vvalues); | |
1381 | if (EQ (Vstandard_output, Qt)) | |
1382 | Fprin1 (val, Qnil); | |
1383 | else | |
1384 | Fprint (val, Qnil); | |
1385 | } | |
1386 | } | |
1387 | ||
ae321d28 | 1388 | build_load_history (stream, sourcename); |
ae321d28 RS |
1389 | UNGCPRO; |
1390 | ||
078e7b4a JB |
1391 | unbind_to (count, Qnil); |
1392 | } | |
1393 | ||
1076254d | 1394 | DEFUN ("eval-buffer", Feval_buffer, Seval_buffer, 0, 5, "", |
5de38842 PJ |
1395 | doc: /* Execute the current buffer as Lisp code. |
1396 | Programs can pass two arguments, BUFFER and PRINTFLAG. | |
1397 | BUFFER is the buffer to evaluate (nil means use current buffer). | |
1398 | PRINTFLAG controls printing of output: | |
1399 | nil means discard it; anything else is stream for print. | |
1400 | ||
1401 | If the optional third argument FILENAME is non-nil, | |
1402 | it specifies the file name to use for `load-history'. | |
1403 | The optional fourth argument UNIBYTE specifies `load-convert-to-unibyte' | |
1404 | for this invocation. | |
1405 | ||
3f9ab804 | 1406 | The optional fifth argument DO-ALLOW-PRINT, if non-nil, specifies that |
5de38842 PJ |
1407 | `print' and related functions should work normally even if PRINTFLAG is nil. |
1408 | ||
1409 | This function preserves the position of point. */) | |
1410 | (buffer, printflag, filename, unibyte, do_allow_print) | |
1076254d | 1411 | Lisp_Object buffer, printflag, filename, unibyte, do_allow_print; |
228d4b1c | 1412 | { |
aed13378 | 1413 | int count = SPECPDL_INDEX (); |
228d4b1c JA |
1414 | Lisp_Object tem, buf; |
1415 | ||
9391b698 | 1416 | if (NILP (buffer)) |
228d4b1c JA |
1417 | buf = Fcurrent_buffer (); |
1418 | else | |
9391b698 | 1419 | buf = Fget_buffer (buffer); |
dfdb645c | 1420 | if (NILP (buf)) |
13febd85 | 1421 | error ("No such buffer"); |
228d4b1c | 1422 | |
1076254d | 1423 | if (NILP (printflag) && NILP (do_allow_print)) |
228d4b1c JA |
1424 | tem = Qsymbolp; |
1425 | else | |
1426 | tem = printflag; | |
13febd85 RS |
1427 | |
1428 | if (NILP (filename)) | |
1429 | filename = XBUFFER (buf)->filename; | |
1430 | ||
228d4b1c JA |
1431 | specbind (Qstandard_output, tem); |
1432 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
1433 | BUF_SET_PT (XBUFFER (buf), BUF_BEGV (XBUFFER (buf))); | |
976350af | 1434 | readevalloop (buf, 0, filename, Feval, !NILP (printflag), unibyte, Qnil); |
cb09ab7a | 1435 | unbind_to (count, Qnil); |
228d4b1c JA |
1436 | |
1437 | return Qnil; | |
1438 | } | |
1439 | ||
976350af | 1440 | DEFUN ("eval-region", Feval_region, Seval_region, 2, 4, "r", |
5de38842 PJ |
1441 | doc: /* Execute the region as Lisp code. |
1442 | When called from programs, expects two arguments, | |
1443 | giving starting and ending indices in the current buffer | |
1444 | of the text to be executed. | |
1445 | Programs can pass third argument PRINTFLAG which controls output: | |
1446 | nil means discard it; anything else is stream for printing it. | |
1447 | Also the fourth argument READ-FUNCTION, if non-nil, is used | |
1448 | instead of `read' to read each expression. It gets one argument | |
1449 | which is the input stream for reading characters. | |
1450 | ||
1451 | This function does not move point. */) | |
1452 | (start, end, printflag, read_function) | |
976350af | 1453 | Lisp_Object start, end, printflag, read_function; |
078e7b4a | 1454 | { |
aed13378 | 1455 | int count = SPECPDL_INDEX (); |
ae321d28 RS |
1456 | Lisp_Object tem, cbuf; |
1457 | ||
1458 | cbuf = Fcurrent_buffer (); | |
078e7b4a | 1459 | |
265a9e55 | 1460 | if (NILP (printflag)) |
078e7b4a JB |
1461 | tem = Qsymbolp; |
1462 | else | |
1463 | tem = printflag; | |
1464 | specbind (Qstandard_output, tem); | |
1465 | ||
265a9e55 | 1466 | if (NILP (printflag)) |
078e7b4a JB |
1467 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); |
1468 | record_unwind_protect (save_restriction_restore, save_restriction_save ()); | |
1469 | ||
9391b698 EN |
1470 | /* This both uses start and checks its type. */ |
1471 | Fgoto_char (start); | |
1472 | Fnarrow_to_region (make_number (BEGV), end); | |
94e554db | 1473 | readevalloop (cbuf, 0, XBUFFER (cbuf)->filename, Feval, |
976350af | 1474 | !NILP (printflag), Qnil, read_function); |
078e7b4a JB |
1475 | |
1476 | return unbind_to (count, Qnil); | |
1477 | } | |
1478 | ||
078e7b4a JB |
1479 | \f |
1480 | DEFUN ("read", Fread, Sread, 0, 1, 0, | |
5de38842 PJ |
1481 | doc: /* Read one Lisp expression as text from STREAM, return as Lisp object. |
1482 | If STREAM is nil, use the value of `standard-input' (which see). | |
1483 | STREAM or the value of `standard-input' may be: | |
1484 | a buffer (read from point and advance it) | |
1485 | a marker (read from where it points and advance it) | |
1486 | a function (call it with no arguments for each character, | |
1487 | call it with a char as argument to push a char back) | |
1488 | a string (takes text from string, starting at the beginning) | |
1489 | t (read text line using minibuffer and use it, or read from | |
1490 | standard input in batch mode). */) | |
1491 | (stream) | |
5be02dff | 1492 | Lisp_Object stream; |
078e7b4a | 1493 | { |
5be02dff KH |
1494 | if (NILP (stream)) |
1495 | stream = Vstandard_input; | |
1496 | if (EQ (stream, Qt)) | |
1497 | stream = Qread_char; | |
5be02dff | 1498 | if (EQ (stream, Qread_char)) |
078e7b4a | 1499 | return Fread_minibuffer (build_string ("Lisp expression: "), Qnil); |
078e7b4a | 1500 | |
abb13b09 | 1501 | return read_internal_start (stream, Qnil, Qnil); |
078e7b4a JB |
1502 | } |
1503 | ||
1504 | DEFUN ("read-from-string", Fread_from_string, Sread_from_string, 1, 3, 0, | |
5de38842 PJ |
1505 | doc: /* Read one Lisp expression which is represented as text by STRING. |
1506 | Returns a cons: (OBJECT-READ . FINAL-STRING-INDEX). | |
1507 | START and END optionally delimit a substring of STRING from which to read; | |
1508 | they default to 0 and (length STRING) respectively. */) | |
1509 | (string, start, end) | |
078e7b4a JB |
1510 | Lisp_Object string, start, end; |
1511 | { | |
2530ceaf | 1512 | Lisp_Object ret; |
b7826503 | 1513 | CHECK_STRING (string); |
2530ceaf CW |
1514 | /* read_internal_start sets read_from_string_index. */ |
1515 | ret = read_internal_start (string, start, end); | |
5135ab39 | 1516 | return Fcons (ret, make_number (read_from_string_index)); |
abb13b09 | 1517 | } |
078e7b4a | 1518 | |
abb13b09 CW |
1519 | /* Function to set up the global context we need in toplevel read |
1520 | calls. */ | |
1521 | static Lisp_Object | |
1522 | read_internal_start (stream, start, end) | |
1523 | Lisp_Object stream; | |
1524 | Lisp_Object start; /* Only used when stream is a string. */ | |
1525 | Lisp_Object end; /* Only used when stream is a string. */ | |
1526 | { | |
1527 | Lisp_Object retval; | |
078e7b4a | 1528 | |
abb13b09 CW |
1529 | readchar_backlog = -1; |
1530 | readchar_count = 0; | |
17634846 | 1531 | new_backquote_flag = 0; |
4ad679f9 | 1532 | read_objects = Qnil; |
abb13b09 CW |
1533 | if (EQ (Vread_with_symbol_positions, Qt) |
1534 | || EQ (Vread_with_symbol_positions, stream)) | |
1535 | Vread_symbol_positions_list = Qnil; | |
1536 | ||
1537 | if (STRINGP (stream)) | |
1538 | { | |
1539 | int startval, endval; | |
1540 | if (NILP (end)) | |
d5db4077 | 1541 | endval = SCHARS (stream); |
abb13b09 CW |
1542 | else |
1543 | { | |
1544 | CHECK_NUMBER (end); | |
1545 | endval = XINT (end); | |
d5db4077 | 1546 | if (endval < 0 || endval > SCHARS (stream)) |
abb13b09 CW |
1547 | args_out_of_range (stream, end); |
1548 | } | |
17634846 | 1549 | |
abb13b09 CW |
1550 | if (NILP (start)) |
1551 | startval = 0; | |
1552 | else | |
1553 | { | |
1554 | CHECK_NUMBER (start); | |
1555 | startval = XINT (start); | |
1556 | if (startval < 0 || startval > endval) | |
1557 | args_out_of_range (stream, start); | |
1558 | } | |
1559 | read_from_string_index = startval; | |
1560 | read_from_string_index_byte = string_char_to_byte (stream, startval); | |
1561 | read_from_string_limit = endval; | |
1562 | } | |
177c0ea7 | 1563 | |
abb13b09 CW |
1564 | retval = read0 (stream); |
1565 | if (EQ (Vread_with_symbol_positions, Qt) | |
1566 | || EQ (Vread_with_symbol_positions, stream)) | |
1567 | Vread_symbol_positions_list = Fnreverse (Vread_symbol_positions_list); | |
1568 | return retval; | |
078e7b4a JB |
1569 | } |
1570 | \f | |
6428369f KH |
1571 | /* Use this for recursive reads, in contexts where internal tokens |
1572 | are not allowed. */ | |
e28552a4 | 1573 | |
078e7b4a JB |
1574 | static Lisp_Object |
1575 | read0 (readcharfun) | |
1576 | Lisp_Object readcharfun; | |
1577 | { | |
1578 | register Lisp_Object val; | |
e28552a4 | 1579 | int c; |
078e7b4a | 1580 | |
17634846 | 1581 | val = read1 (readcharfun, &c, 0); |
6428369f | 1582 | if (c) |
93d75e4c RS |
1583 | Fsignal (Qinvalid_read_syntax, Fcons (Fmake_string (make_number (1), |
1584 | make_number (c)), | |
e28552a4 | 1585 | Qnil)); |
078e7b4a JB |
1586 | |
1587 | return val; | |
1588 | } | |
1589 | \f | |
1590 | static int read_buffer_size; | |
1591 | static char *read_buffer; | |
1592 | ||
fe0e03f3 KH |
1593 | /* Read multibyte form and return it as a character. C is a first |
1594 | byte of multibyte form, and rest of them are read from | |
1595 | READCHARFUN. */ | |
6f7f43d5 | 1596 | |
fe0e03f3 KH |
1597 | static int |
1598 | read_multibyte (c, readcharfun) | |
1599 | register int c; | |
1600 | Lisp_Object readcharfun; | |
1601 | { | |
1602 | /* We need the actual character code of this multibyte | |
1603 | characters. */ | |
449fea39 | 1604 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
fe0e03f3 | 1605 | int len = 0; |
0d5e5843 | 1606 | int bytes; |
fe0e03f3 | 1607 | |
abb13b09 CW |
1608 | if (c < 0) |
1609 | return c; | |
1610 | ||
fe0e03f3 KH |
1611 | str[len++] = c; |
1612 | while ((c = READCHAR) >= 0xA0 | |
449fea39 | 1613 | && len < MAX_MULTIBYTE_LENGTH) |
abb13b09 CW |
1614 | { |
1615 | str[len++] = c; | |
1616 | readchar_count--; | |
1617 | } | |
fe0e03f3 | 1618 | UNREAD (c); |
0d5e5843 KH |
1619 | if (UNIBYTE_STR_AS_MULTIBYTE_P (str, len, bytes)) |
1620 | return STRING_CHAR (str, len); | |
1621 | /* The byte sequence is not valid as multibyte. Unread all bytes | |
1622 | but the first one, and return the first byte. */ | |
1623 | while (--len > 0) | |
1624 | UNREAD (str[len]); | |
1625 | return str[0]; | |
fe0e03f3 KH |
1626 | } |
1627 | ||
f6f79b37 RS |
1628 | /* Read a \-escape sequence, assuming we already read the `\'. |
1629 | If the escape sequence forces unibyte, store 1 into *BYTEREP. | |
1630 | If the escape sequence forces multibyte, store 2 into *BYTEREP. | |
1631 | Otherwise store 0 into *BYTEREP. */ | |
6f7f43d5 | 1632 | |
078e7b4a | 1633 | static int |
f6f79b37 | 1634 | read_escape (readcharfun, stringp, byterep) |
078e7b4a | 1635 | Lisp_Object readcharfun; |
e7fc914b | 1636 | int stringp; |
f6f79b37 | 1637 | int *byterep; |
078e7b4a JB |
1638 | { |
1639 | register int c = READCHAR; | |
f6f79b37 RS |
1640 | |
1641 | *byterep = 0; | |
1642 | ||
078e7b4a JB |
1643 | switch (c) |
1644 | { | |
f3849f25 | 1645 | case -1: |
da3b886d | 1646 | end_of_file_error (); |
f3849f25 | 1647 | |
078e7b4a | 1648 | case 'a': |
265a9e55 | 1649 | return '\007'; |
078e7b4a JB |
1650 | case 'b': |
1651 | return '\b'; | |
f405a585 RS |
1652 | case 'd': |
1653 | return 0177; | |
078e7b4a JB |
1654 | case 'e': |
1655 | return 033; | |
1656 | case 'f': | |
1657 | return '\f'; | |
1658 | case 'n': | |
1659 | return '\n'; | |
1660 | case 'r': | |
1661 | return '\r'; | |
1662 | case 't': | |
1663 | return '\t'; | |
1664 | case 'v': | |
1665 | return '\v'; | |
1666 | case '\n': | |
1667 | return -1; | |
e28552a4 | 1668 | case ' ': |
e7fc914b KH |
1669 | if (stringp) |
1670 | return -1; | |
1671 | return ' '; | |
078e7b4a JB |
1672 | |
1673 | case 'M': | |
1674 | c = READCHAR; | |
1675 | if (c != '-') | |
1676 | error ("Invalid escape character syntax"); | |
1677 | c = READCHAR; | |
1678 | if (c == '\\') | |
f6f79b37 | 1679 | c = read_escape (readcharfun, 0, byterep); |
7bd279cd | 1680 | return c | meta_modifier; |
f405a585 RS |
1681 | |
1682 | case 'S': | |
1683 | c = READCHAR; | |
1684 | if (c != '-') | |
1685 | error ("Invalid escape character syntax"); | |
1686 | c = READCHAR; | |
1687 | if (c == '\\') | |
f6f79b37 | 1688 | c = read_escape (readcharfun, 0, byterep); |
7bd279cd RS |
1689 | return c | shift_modifier; |
1690 | ||
1691 | case 'H': | |
1692 | c = READCHAR; | |
1693 | if (c != '-') | |
1694 | error ("Invalid escape character syntax"); | |
1695 | c = READCHAR; | |
1696 | if (c == '\\') | |
f6f79b37 | 1697 | c = read_escape (readcharfun, 0, byterep); |
7bd279cd RS |
1698 | return c | hyper_modifier; |
1699 | ||
1700 | case 'A': | |
1701 | c = READCHAR; | |
1702 | if (c != '-') | |
1703 | error ("Invalid escape character syntax"); | |
1704 | c = READCHAR; | |
1705 | if (c == '\\') | |
f6f79b37 | 1706 | c = read_escape (readcharfun, 0, byterep); |
7bd279cd RS |
1707 | return c | alt_modifier; |
1708 | ||
1709 | case 's': | |
37cd4238 KS |
1710 | if (stringp) |
1711 | return ' '; | |
7bd279cd | 1712 | c = READCHAR; |
37cd4238 KS |
1713 | if (c != '-') { |
1714 | UNREAD (c); | |
1715 | return ' '; | |
1716 | } | |
7bd279cd RS |
1717 | c = READCHAR; |
1718 | if (c == '\\') | |
f6f79b37 | 1719 | c = read_escape (readcharfun, 0, byterep); |
7bd279cd | 1720 | return c | super_modifier; |
078e7b4a JB |
1721 | |
1722 | case 'C': | |
1723 | c = READCHAR; | |
1724 | if (c != '-') | |
1725 | error ("Invalid escape character syntax"); | |
1726 | case '^': | |
1727 | c = READCHAR; | |
1728 | if (c == '\\') | |
f6f79b37 | 1729 | c = read_escape (readcharfun, 0, byterep); |
164d590d KH |
1730 | if ((c & ~CHAR_MODIFIER_MASK) == '?') |
1731 | return 0177 | (c & CHAR_MODIFIER_MASK); | |
1732 | else if (! SINGLE_BYTE_CHAR_P ((c & ~CHAR_MODIFIER_MASK))) | |
1733 | return c | ctrl_modifier; | |
f405a585 RS |
1734 | /* ASCII control chars are made from letters (both cases), |
1735 | as well as the non-letters within 0100...0137. */ | |
1736 | else if ((c & 0137) >= 0101 && (c & 0137) <= 0132) | |
1737 | return (c & (037 | ~0177)); | |
1738 | else if ((c & 0177) >= 0100 && (c & 0177) <= 0137) | |
1739 | return (c & (037 | ~0177)); | |
078e7b4a | 1740 | else |
7bd279cd | 1741 | return c | ctrl_modifier; |
078e7b4a JB |
1742 | |
1743 | case '0': | |
1744 | case '1': | |
1745 | case '2': | |
1746 | case '3': | |
1747 | case '4': | |
1748 | case '5': | |
1749 | case '6': | |
1750 | case '7': | |
1751 | /* An octal escape, as in ANSI C. */ | |
1752 | { | |
1753 | register int i = c - '0'; | |
1754 | register int count = 0; | |
1755 | while (++count < 3) | |
1756 | { | |
1757 | if ((c = READCHAR) >= '0' && c <= '7') | |
1758 | { | |
1759 | i *= 8; | |
1760 | i += c - '0'; | |
1761 | } | |
1762 | else | |
1763 | { | |
1764 | UNREAD (c); | |
1765 | break; | |
1766 | } | |
1767 | } | |
177c0ea7 | 1768 | |
f6f79b37 | 1769 | *byterep = 1; |
078e7b4a JB |
1770 | return i; |
1771 | } | |
1772 | ||
1773 | case 'x': | |
1774 | /* A hex escape, as in ANSI C. */ | |
1775 | { | |
1776 | int i = 0; | |
1777 | while (1) | |
1778 | { | |
1779 | c = READCHAR; | |
1780 | if (c >= '0' && c <= '9') | |
1781 | { | |
1782 | i *= 16; | |
1783 | i += c - '0'; | |
1784 | } | |
1785 | else if ((c >= 'a' && c <= 'f') | |
1786 | || (c >= 'A' && c <= 'F')) | |
1787 | { | |
1788 | i *= 16; | |
1789 | if (c >= 'a' && c <= 'f') | |
1790 | i += c - 'a' + 10; | |
1791 | else | |
1792 | i += c - 'A' + 10; | |
1793 | } | |
1794 | else | |
1795 | { | |
1796 | UNREAD (c); | |
1797 | break; | |
1798 | } | |
1799 | } | |
f6f79b37 RS |
1800 | |
1801 | *byterep = 2; | |
078e7b4a JB |
1802 | return i; |
1803 | } | |
1804 | ||
1805 | default: | |
fe0e03f3 KH |
1806 | if (BASE_LEADING_CODE_P (c)) |
1807 | c = read_multibyte (c, readcharfun); | |
078e7b4a JB |
1808 | return c; |
1809 | } | |
1810 | } | |
1811 | ||
bf5d1a17 GM |
1812 | |
1813 | /* Read an integer in radix RADIX using READCHARFUN to read | |
1814 | characters. RADIX must be in the interval [2..36]; if it isn't, a | |
1815 | read error is signaled . Value is the integer read. Signals an | |
1816 | error if encountering invalid read syntax or if RADIX is out of | |
1817 | range. */ | |
1818 | ||
1819 | static Lisp_Object | |
1820 | read_integer (readcharfun, radix) | |
1821 | Lisp_Object readcharfun; | |
1822 | int radix; | |
1823 | { | |
5e37dc22 GM |
1824 | int ndigits = 0, invalid_p, c, sign = 0; |
1825 | EMACS_INT number = 0; | |
bf5d1a17 GM |
1826 | |
1827 | if (radix < 2 || radix > 36) | |
1828 | invalid_p = 1; | |
1829 | else | |
1830 | { | |
1831 | number = ndigits = invalid_p = 0; | |
1832 | sign = 1; | |
1833 | ||
1834 | c = READCHAR; | |
1835 | if (c == '-') | |
1836 | { | |
1837 | c = READCHAR; | |
1838 | sign = -1; | |
1839 | } | |
1840 | else if (c == '+') | |
1841 | c = READCHAR; | |
177c0ea7 | 1842 | |
bf5d1a17 GM |
1843 | while (c >= 0) |
1844 | { | |
1845 | int digit; | |
177c0ea7 | 1846 | |
bf5d1a17 GM |
1847 | if (c >= '0' && c <= '9') |
1848 | digit = c - '0'; | |
1849 | else if (c >= 'a' && c <= 'z') | |
1850 | digit = c - 'a' + 10; | |
1851 | else if (c >= 'A' && c <= 'Z') | |
1852 | digit = c - 'A' + 10; | |
1853 | else | |
b632fa48 GM |
1854 | { |
1855 | UNREAD (c); | |
1856 | break; | |
1857 | } | |
bf5d1a17 GM |
1858 | |
1859 | if (digit < 0 || digit >= radix) | |
1860 | invalid_p = 1; | |
1861 | ||
1862 | number = radix * number + digit; | |
1863 | ++ndigits; | |
1864 | c = READCHAR; | |
1865 | } | |
1866 | } | |
1867 | ||
1868 | if (ndigits == 0 || invalid_p) | |
1869 | { | |
1870 | char buf[50]; | |
1871 | sprintf (buf, "integer, radix %d", radix); | |
1872 | Fsignal (Qinvalid_read_syntax, Fcons (build_string (buf), Qnil)); | |
1873 | } | |
1874 | ||
1875 | return make_number (sign * number); | |
1876 | } | |
1877 | ||
1878 | ||
a742d646 GM |
1879 | /* Convert unibyte text in read_buffer to multibyte. |
1880 | ||
1881 | Initially, *P is a pointer after the end of the unibyte text, and | |
1882 | the pointer *END points after the end of read_buffer. | |
1883 | ||
1884 | If read_buffer doesn't have enough room to hold the result | |
1885 | of the conversion, reallocate it and adjust *P and *END. | |
1886 | ||
1887 | At the end, make *P point after the result of the conversion, and | |
1888 | return in *NCHARS the number of characters in the converted | |
1889 | text. */ | |
1890 | ||
1891 | static void | |
1892 | to_multibyte (p, end, nchars) | |
1893 | char **p, **end; | |
1894 | int *nchars; | |
1895 | { | |
1896 | int nbytes; | |
1897 | ||
1898 | parse_str_as_multibyte (read_buffer, *p - read_buffer, &nbytes, nchars); | |
b4a3be43 | 1899 | if (read_buffer_size < 2 * nbytes) |
a742d646 GM |
1900 | { |
1901 | int offset = *p - read_buffer; | |
fe957e65 | 1902 | read_buffer_size = 2 * max (read_buffer_size, nbytes); |
a742d646 GM |
1903 | read_buffer = (char *) xrealloc (read_buffer, read_buffer_size); |
1904 | *p = read_buffer + offset; | |
1905 | *end = read_buffer + read_buffer_size; | |
1906 | } | |
1907 | ||
1908 | if (nbytes != *nchars) | |
1909 | nbytes = str_as_multibyte (read_buffer, read_buffer_size, | |
1910 | *p - read_buffer, nchars); | |
177c0ea7 | 1911 | |
a742d646 GM |
1912 | *p = read_buffer + nbytes; |
1913 | } | |
1914 | ||
1915 | ||
6428369f KH |
1916 | /* If the next token is ')' or ']' or '.', we store that character |
1917 | in *PCH and the return value is not interesting. Else, we store | |
17634846 RS |
1918 | zero in *PCH and we read and return one lisp object. |
1919 | ||
1920 | FIRST_IN_LIST is nonzero if this is the first element of a list. */ | |
1921 | ||
078e7b4a | 1922 | static Lisp_Object |
17634846 | 1923 | read1 (readcharfun, pch, first_in_list) |
078e7b4a | 1924 | register Lisp_Object readcharfun; |
e28552a4 | 1925 | int *pch; |
17634846 | 1926 | int first_in_list; |
078e7b4a JB |
1927 | { |
1928 | register int c; | |
4ad679f9 EN |
1929 | int uninterned_symbol = 0; |
1930 | ||
6428369f | 1931 | *pch = 0; |
078e7b4a JB |
1932 | |
1933 | retry: | |
1934 | ||
1935 | c = READCHAR; | |
9c97398c GM |
1936 | if (c < 0) |
1937 | end_of_file_error (); | |
078e7b4a JB |
1938 | |
1939 | switch (c) | |
1940 | { | |
1941 | case '(': | |
1942 | return read_list (0, readcharfun); | |
1943 | ||
1944 | case '[': | |
c15cfd1f | 1945 | return read_vector (readcharfun, 0); |
078e7b4a JB |
1946 | |
1947 | case ')': | |
1948 | case ']': | |
078e7b4a | 1949 | { |
6428369f KH |
1950 | *pch = c; |
1951 | return Qnil; | |
078e7b4a JB |
1952 | } |
1953 | ||
1954 | case '#': | |
200f684e | 1955 | c = READCHAR; |
c2390933 RS |
1956 | if (c == '^') |
1957 | { | |
1958 | c = READCHAR; | |
1959 | if (c == '[') | |
1960 | { | |
1961 | Lisp_Object tmp; | |
c15cfd1f | 1962 | tmp = read_vector (readcharfun, 0); |
c2390933 RS |
1963 | if (XVECTOR (tmp)->size < CHAR_TABLE_STANDARD_SLOTS |
1964 | || XVECTOR (tmp)->size > CHAR_TABLE_STANDARD_SLOTS + 10) | |
1965 | error ("Invalid size char-table"); | |
1966 | XSETCHAR_TABLE (tmp, XCHAR_TABLE (tmp)); | |
3701b5de | 1967 | XCHAR_TABLE (tmp)->top = Qt; |
c2390933 RS |
1968 | return tmp; |
1969 | } | |
3701b5de KH |
1970 | else if (c == '^') |
1971 | { | |
1972 | c = READCHAR; | |
1973 | if (c == '[') | |
1974 | { | |
1975 | Lisp_Object tmp; | |
c15cfd1f | 1976 | tmp = read_vector (readcharfun, 0); |
3701b5de KH |
1977 | if (XVECTOR (tmp)->size != SUB_CHAR_TABLE_STANDARD_SLOTS) |
1978 | error ("Invalid size char-table"); | |
1979 | XSETCHAR_TABLE (tmp, XCHAR_TABLE (tmp)); | |
1980 | XCHAR_TABLE (tmp)->top = Qnil; | |
1981 | return tmp; | |
1982 | } | |
1983 | Fsignal (Qinvalid_read_syntax, | |
1984 | Fcons (make_string ("#^^", 3), Qnil)); | |
1985 | } | |
c2390933 RS |
1986 | Fsignal (Qinvalid_read_syntax, Fcons (make_string ("#^", 2), Qnil)); |
1987 | } | |
1988 | if (c == '&') | |
1989 | { | |
1990 | Lisp_Object length; | |
1991 | length = read1 (readcharfun, pch, first_in_list); | |
1992 | c = READCHAR; | |
1993 | if (c == '"') | |
1994 | { | |
1995 | Lisp_Object tmp, val; | |
d1ca81d9 AS |
1996 | int size_in_chars |
1997 | = ((XFASTINT (length) + BOOL_VECTOR_BITS_PER_CHAR - 1) | |
1998 | / BOOL_VECTOR_BITS_PER_CHAR); | |
c2390933 RS |
1999 | |
2000 | UNREAD (c); | |
2001 | tmp = read1 (readcharfun, pch, first_in_list); | |
d5db4077 | 2002 | if (size_in_chars != SCHARS (tmp) |
90ed3ec5 RS |
2003 | /* We used to print 1 char too many |
2004 | when the number of bits was a multiple of 8. | |
2005 | Accept such input in case it came from an old version. */ | |
2006 | && ! (XFASTINT (length) | |
d1ca81d9 | 2007 | == (SCHARS (tmp) - 1) * BOOL_VECTOR_BITS_PER_CHAR)) |
c2390933 | 2008 | Fsignal (Qinvalid_read_syntax, |
ec3bbd7d | 2009 | Fcons (make_string ("#&...", 5), Qnil)); |
177c0ea7 | 2010 | |
c2390933 | 2011 | val = Fmake_bool_vector (length, Qnil); |
d5db4077 | 2012 | bcopy (SDATA (tmp), XBOOL_VECTOR (val)->data, |
c2390933 | 2013 | size_in_chars); |
67d3b149 | 2014 | /* Clear the extraneous bits in the last byte. */ |
d1ca81d9 | 2015 | if (XINT (length) != size_in_chars * BOOL_VECTOR_BITS_PER_CHAR) |
67d3b149 | 2016 | XBOOL_VECTOR (val)->data[size_in_chars - 1] |
d1ca81d9 | 2017 | &= (1 << (XINT (length) % BOOL_VECTOR_BITS_PER_CHAR)) - 1; |
c2390933 RS |
2018 | return val; |
2019 | } | |
ec3bbd7d | 2020 | Fsignal (Qinvalid_read_syntax, Fcons (make_string ("#&...", 5), |
039dc30b | 2021 | Qnil)); |
c2390933 | 2022 | } |
200f684e RS |
2023 | if (c == '[') |
2024 | { | |
2025 | /* Accept compiled functions at read-time so that we don't have to | |
2026 | build them using function calls. */ | |
748ef62f | 2027 | Lisp_Object tmp; |
c15cfd1f | 2028 | tmp = read_vector (readcharfun, 1); |
748ef62f RS |
2029 | return Fmake_byte_code (XVECTOR (tmp)->size, |
2030 | XVECTOR (tmp)->contents); | |
200f684e | 2031 | } |
748ef62f RS |
2032 | if (c == '(') |
2033 | { | |
2034 | Lisp_Object tmp; | |
2035 | struct gcpro gcpro1; | |
e28552a4 | 2036 | int ch; |
748ef62f RS |
2037 | |
2038 | /* Read the string itself. */ | |
17634846 | 2039 | tmp = read1 (readcharfun, &ch, 0); |
6428369f | 2040 | if (ch != 0 || !STRINGP (tmp)) |
748ef62f RS |
2041 | Fsignal (Qinvalid_read_syntax, Fcons (make_string ("#", 1), Qnil)); |
2042 | GCPRO1 (tmp); | |
2043 | /* Read the intervals and their properties. */ | |
2044 | while (1) | |
2045 | { | |
2046 | Lisp_Object beg, end, plist; | |
2047 | ||
17634846 | 2048 | beg = read1 (readcharfun, &ch, 0); |
7ee3bd7b | 2049 | end = plist = Qnil; |
6428369f KH |
2050 | if (ch == ')') |
2051 | break; | |
2052 | if (ch == 0) | |
17634846 | 2053 | end = read1 (readcharfun, &ch, 0); |
6428369f | 2054 | if (ch == 0) |
17634846 | 2055 | plist = read1 (readcharfun, &ch, 0); |
6428369f | 2056 | if (ch) |
748ef62f | 2057 | Fsignal (Qinvalid_read_syntax, |
6428369f KH |
2058 | Fcons (build_string ("invalid string property list"), |
2059 | Qnil)); | |
748ef62f RS |
2060 | Fset_text_properties (beg, end, plist, tmp); |
2061 | } | |
2062 | UNGCPRO; | |
2063 | return tmp; | |
2064 | } | |
177c0ea7 | 2065 | |
20ea2964 RS |
2066 | /* #@NUMBER is used to skip NUMBER following characters. |
2067 | That's used in .elc files to skip over doc strings | |
2068 | and function definitions. */ | |
2069 | if (c == '@') | |
2070 | { | |
2071 | int i, nskip = 0; | |
2072 | ||
2073 | /* Read a decimal integer. */ | |
2074 | while ((c = READCHAR) >= 0 | |
2075 | && c >= '0' && c <= '9') | |
2076 | { | |
2077 | nskip *= 10; | |
2078 | nskip += c - '0'; | |
2079 | } | |
2080 | if (c >= 0) | |
2081 | UNREAD (c); | |
177c0ea7 | 2082 | |
b2a30870 RS |
2083 | if (load_force_doc_strings && EQ (readcharfun, Qget_file_char)) |
2084 | { | |
2085 | /* If we are supposed to force doc strings into core right now, | |
2086 | record the last string that we skipped, | |
2087 | and record where in the file it comes from. */ | |
c15cfd1f RS |
2088 | |
2089 | /* But first exchange saved_doc_string | |
2090 | with prev_saved_doc_string, so we save two strings. */ | |
2091 | { | |
2092 | char *temp = saved_doc_string; | |
2093 | int temp_size = saved_doc_string_size; | |
68c45bf0 | 2094 | file_offset temp_pos = saved_doc_string_position; |
c15cfd1f RS |
2095 | int temp_len = saved_doc_string_length; |
2096 | ||
2097 | saved_doc_string = prev_saved_doc_string; | |
2098 | saved_doc_string_size = prev_saved_doc_string_size; | |
2099 | saved_doc_string_position = prev_saved_doc_string_position; | |
2100 | saved_doc_string_length = prev_saved_doc_string_length; | |
2101 | ||
2102 | prev_saved_doc_string = temp; | |
2103 | prev_saved_doc_string_size = temp_size; | |
2104 | prev_saved_doc_string_position = temp_pos; | |
2105 | prev_saved_doc_string_length = temp_len; | |
2106 | } | |
2107 | ||
b2a30870 RS |
2108 | if (saved_doc_string_size == 0) |
2109 | { | |
2110 | saved_doc_string_size = nskip + 100; | |
11938f10 | 2111 | saved_doc_string = (char *) xmalloc (saved_doc_string_size); |
b2a30870 RS |
2112 | } |
2113 | if (nskip > saved_doc_string_size) | |
2114 | { | |
2115 | saved_doc_string_size = nskip + 100; | |
11938f10 KH |
2116 | saved_doc_string = (char *) xrealloc (saved_doc_string, |
2117 | saved_doc_string_size); | |
b2a30870 RS |
2118 | } |
2119 | ||
68c45bf0 | 2120 | saved_doc_string_position = file_tell (instream); |
b2a30870 RS |
2121 | |
2122 | /* Copy that many characters into saved_doc_string. */ | |
2123 | for (i = 0; i < nskip && c >= 0; i++) | |
2124 | saved_doc_string[i] = c = READCHAR; | |
2125 | ||
2126 | saved_doc_string_length = i; | |
2127 | } | |
2128 | else | |
b2a30870 RS |
2129 | { |
2130 | /* Skip that many characters. */ | |
2131 | for (i = 0; i < nskip && c >= 0; i++) | |
2132 | c = READCHAR; | |
2133 | } | |
d49f0c1a | 2134 | |
20ea2964 RS |
2135 | goto retry; |
2136 | } | |
e2518d02 RS |
2137 | if (c == '!') |
2138 | { | |
2139 | /* #! appears at the beginning of an executable file. | |
2140 | Skip the first line. */ | |
225c7a07 | 2141 | while (c != '\n' && c >= 0) |
e2518d02 RS |
2142 | c = READCHAR; |
2143 | goto retry; | |
2144 | } | |
20ea2964 RS |
2145 | if (c == '$') |
2146 | return Vload_file_name; | |
2b6cae0c RS |
2147 | if (c == '\'') |
2148 | return Fcons (Qfunction, Fcons (read0 (readcharfun), Qnil)); | |
4ad679f9 EN |
2149 | /* #:foo is the uninterned symbol named foo. */ |
2150 | if (c == ':') | |
2151 | { | |
2152 | uninterned_symbol = 1; | |
2153 | c = READCHAR; | |
2154 | goto default_label; | |
2155 | } | |
2156 | /* Reader forms that can reuse previously read objects. */ | |
2157 | if (c >= '0' && c <= '9') | |
2158 | { | |
2159 | int n = 0; | |
2160 | Lisp_Object tem; | |
2b6cae0c | 2161 | |
4ad679f9 EN |
2162 | /* Read a non-negative integer. */ |
2163 | while (c >= '0' && c <= '9') | |
2164 | { | |
2165 | n *= 10; | |
2166 | n += c - '0'; | |
2167 | c = READCHAR; | |
2168 | } | |
2169 | /* #n=object returns object, but associates it with n for #n#. */ | |
2170 | if (c == '=') | |
2171 | { | |
9e062b6c RS |
2172 | /* Make a placeholder for #n# to use temporarily */ |
2173 | Lisp_Object placeholder; | |
2174 | Lisp_Object cell; | |
2175 | ||
2176 | placeholder = Fcons(Qnil, Qnil); | |
2177 | cell = Fcons (make_number (n), placeholder); | |
2178 | read_objects = Fcons (cell, read_objects); | |
2179 | ||
2180 | /* Read the object itself. */ | |
4ad679f9 | 2181 | tem = read0 (readcharfun); |
9e062b6c RS |
2182 | |
2183 | /* Now put it everywhere the placeholder was... */ | |
2184 | substitute_object_in_subtree (tem, placeholder); | |
2185 | ||
2186 | /* ...and #n# will use the real value from now on. */ | |
2187 | Fsetcdr (cell, tem); | |
177c0ea7 | 2188 | |
4ad679f9 EN |
2189 | return tem; |
2190 | } | |
2191 | /* #n# returns a previously read object. */ | |
2192 | if (c == '#') | |
2193 | { | |
2194 | tem = Fassq (make_number (n), read_objects); | |
2195 | if (CONSP (tem)) | |
2196 | return XCDR (tem); | |
2197 | /* Fall through to error message. */ | |
2198 | } | |
bf5d1a17 GM |
2199 | else if (c == 'r' || c == 'R') |
2200 | return read_integer (readcharfun, n); | |
177c0ea7 | 2201 | |
4ad679f9 EN |
2202 | /* Fall through to error message. */ |
2203 | } | |
bf5d1a17 GM |
2204 | else if (c == 'x' || c == 'X') |
2205 | return read_integer (readcharfun, 16); | |
2206 | else if (c == 'o' || c == 'O') | |
2207 | return read_integer (readcharfun, 8); | |
2208 | else if (c == 'b' || c == 'B') | |
2209 | return read_integer (readcharfun, 2); | |
20ea2964 | 2210 | |
200f684e | 2211 | UNREAD (c); |
748ef62f | 2212 | Fsignal (Qinvalid_read_syntax, Fcons (make_string ("#", 1), Qnil)); |
078e7b4a JB |
2213 | |
2214 | case ';': | |
2215 | while ((c = READCHAR) >= 0 && c != '\n'); | |
2216 | goto retry; | |
2217 | ||
2218 | case '\'': | |
2219 | { | |
2220 | return Fcons (Qquote, Fcons (read0 (readcharfun), Qnil)); | |
2221 | } | |
2222 | ||
17634846 RS |
2223 | case '`': |
2224 | if (first_in_list) | |
2225 | goto default_label; | |
2226 | else | |
2227 | { | |
2228 | Lisp_Object value; | |
2229 | ||
0ffbbdeb | 2230 | new_backquote_flag++; |
17634846 | 2231 | value = read0 (readcharfun); |
0ffbbdeb | 2232 | new_backquote_flag--; |
17634846 RS |
2233 | |
2234 | return Fcons (Qbackquote, Fcons (value, Qnil)); | |
2235 | } | |
2236 | ||
2237 | case ',': | |
2238 | if (new_backquote_flag) | |
2239 | { | |
2240 | Lisp_Object comma_type = Qnil; | |
2241 | Lisp_Object value; | |
2242 | int ch = READCHAR; | |
2243 | ||
2244 | if (ch == '@') | |
2245 | comma_type = Qcomma_at; | |
2246 | else if (ch == '.') | |
2247 | comma_type = Qcomma_dot; | |
2248 | else | |
2249 | { | |
2250 | if (ch >= 0) UNREAD (ch); | |
2251 | comma_type = Qcomma; | |
2252 | } | |
2253 | ||
0ffbbdeb | 2254 | new_backquote_flag--; |
17634846 | 2255 | value = read0 (readcharfun); |
0ffbbdeb | 2256 | new_backquote_flag++; |
17634846 RS |
2257 | return Fcons (comma_type, Fcons (value, Qnil)); |
2258 | } | |
2259 | else | |
2260 | goto default_label; | |
2261 | ||
078e7b4a JB |
2262 | case '?': |
2263 | { | |
f6f79b37 | 2264 | int discard; |
df9c2be7 KS |
2265 | int next_char; |
2266 | int ok; | |
f6f79b37 | 2267 | |
078e7b4a | 2268 | c = READCHAR; |
9c97398c GM |
2269 | if (c < 0) |
2270 | end_of_file_error (); | |
078e7b4a | 2271 | |
b9284371 KS |
2272 | /* Accept `single space' syntax like (list ? x) where the |
2273 | whitespace character is SPC or TAB. | |
2274 | Other literal whitespace like NL, CR, and FF are not accepted, | |
2275 | as there are well-established escape sequences for these. */ | |
2276 | if (c == ' ' || c == '\t') | |
2277 | return make_number (c); | |
2278 | ||
078e7b4a | 2279 | if (c == '\\') |
f6f79b37 | 2280 | c = read_escape (readcharfun, 0, &discard); |
fe0e03f3 KH |
2281 | else if (BASE_LEADING_CODE_P (c)) |
2282 | c = read_multibyte (c, readcharfun); | |
078e7b4a | 2283 | |
df9c2be7 KS |
2284 | next_char = READCHAR; |
2285 | if (next_char == '.') | |
2286 | { | |
2287 | /* Only a dotted-pair dot is valid after a char constant. */ | |
2288 | int next_next_char = READCHAR; | |
2289 | UNREAD (next_next_char); | |
2290 | ||
2291 | ok = (next_next_char <= 040 | |
e613ea97 KH |
2292 | || (next_next_char < 0200 |
2293 | && (index ("\"';([#?", next_next_char) | |
2294 | || (!first_in_list && next_next_char == '`') | |
2295 | || (new_backquote_flag && next_next_char == ',')))); | |
df9c2be7 KS |
2296 | } |
2297 | else | |
2298 | { | |
2299 | ok = (next_char <= 040 | |
e613ea97 KH |
2300 | || (next_char < 0200 |
2301 | && (index ("\"';()[]#?", next_char) | |
2302 | || (!first_in_list && next_char == '`') | |
2303 | || (new_backquote_flag && next_char == ',')))); | |
df9c2be7 KS |
2304 | } |
2305 | UNREAD (next_char); | |
2306 | if (!ok) | |
37cd4238 KS |
2307 | Fsignal (Qinvalid_read_syntax, Fcons (make_string ("?", 1), Qnil)); |
2308 | ||
6f7f43d5 | 2309 | return make_number (c); |
078e7b4a JB |
2310 | } |
2311 | ||
00a9a935 | 2312 | case '"': |
078e7b4a | 2313 | { |
a742d646 GM |
2314 | char *p = read_buffer; |
2315 | char *end = read_buffer + read_buffer_size; | |
078e7b4a | 2316 | register int c; |
5150eeec RS |
2317 | /* 1 if we saw an escape sequence specifying |
2318 | a multibyte character, or a multibyte character. */ | |
e7fc914b | 2319 | int force_multibyte = 0; |
5150eeec | 2320 | /* 1 if we saw an escape sequence specifying |
e7fc914b KH |
2321 | a single-byte character. */ |
2322 | int force_singlebyte = 0; | |
5150eeec RS |
2323 | /* 1 if read_buffer contains multibyte text now. */ |
2324 | int is_multibyte = 0; | |
078e7b4a | 2325 | int cancel = 0; |
5150eeec | 2326 | int nchars = 0; |
078e7b4a JB |
2327 | |
2328 | while ((c = READCHAR) >= 0 | |
2329 | && c != '\"') | |
2330 | { | |
449fea39 | 2331 | if (end - p < MAX_MULTIBYTE_LENGTH) |
078e7b4a | 2332 | { |
5d65df0d GM |
2333 | int offset = p - read_buffer; |
2334 | read_buffer = (char *) xrealloc (read_buffer, | |
2335 | read_buffer_size *= 2); | |
2336 | p = read_buffer + offset; | |
078e7b4a JB |
2337 | end = read_buffer + read_buffer_size; |
2338 | } | |
bed23cb2 | 2339 | |
078e7b4a | 2340 | if (c == '\\') |
03e88613 | 2341 | { |
f6f79b37 RS |
2342 | int byterep; |
2343 | ||
2344 | c = read_escape (readcharfun, 1, &byterep); | |
bed23cb2 RS |
2345 | |
2346 | /* C is -1 if \ newline has just been seen */ | |
2347 | if (c == -1) | |
03e88613 | 2348 | { |
bed23cb2 RS |
2349 | if (p == read_buffer) |
2350 | cancel = 1; | |
03e88613 RS |
2351 | continue; |
2352 | } | |
bed23cb2 | 2353 | |
f6f79b37 | 2354 | if (byterep == 1) |
e7fc914b | 2355 | force_singlebyte = 1; |
f6f79b37 RS |
2356 | else if (byterep == 2) |
2357 | force_multibyte = 1; | |
03e88613 | 2358 | } |
6f7f43d5 | 2359 | |
5150eeec RS |
2360 | /* A character that must be multibyte forces multibyte. */ |
2361 | if (! SINGLE_BYTE_CHAR_P (c & ~CHAR_MODIFIER_MASK)) | |
2362 | force_multibyte = 1; | |
2363 | ||
2364 | /* If we just discovered the need to be multibyte, | |
2365 | convert the text accumulated thus far. */ | |
2366 | if (force_multibyte && ! is_multibyte) | |
078e7b4a | 2367 | { |
5150eeec RS |
2368 | is_multibyte = 1; |
2369 | to_multibyte (&p, &end, &nchars); | |
078e7b4a | 2370 | } |
988c2f83 | 2371 | |
5150eeec RS |
2372 | /* Allow `\C- ' and `\C-?'. */ |
2373 | if (c == (CHAR_CTL | ' ')) | |
2374 | c = 0; | |
2375 | else if (c == (CHAR_CTL | '?')) | |
2376 | c = 127; | |
11810d78 | 2377 | |
5150eeec RS |
2378 | if (c & CHAR_SHIFT) |
2379 | { | |
2380 | /* Shift modifier is valid only with [A-Za-z]. */ | |
2381 | if ((c & 0377) >= 'A' && (c & 0377) <= 'Z') | |
2382 | c &= ~CHAR_SHIFT; | |
2383 | else if ((c & 0377) >= 'a' && (c & 0377) <= 'z') | |
2384 | c = (c & ~CHAR_SHIFT) - ('a' - 'A'); | |
f943104a | 2385 | } |
5150eeec RS |
2386 | |
2387 | if (c & CHAR_META) | |
2388 | /* Move the meta bit to the right place for a string. */ | |
2389 | c = (c & ~CHAR_META) | 0x80; | |
2390 | if (c & CHAR_MODIFIER_MASK) | |
2391 | error ("Invalid modifier in string"); | |
2392 | ||
2393 | if (is_multibyte) | |
2394 | p += CHAR_STRING (c, p); | |
2395 | else | |
2396 | *p++ = c; | |
2397 | ||
2398 | nchars++; | |
078e7b4a | 2399 | } |
5150eeec | 2400 | |
6f7f43d5 | 2401 | if (c < 0) |
9c97398c | 2402 | end_of_file_error (); |
078e7b4a JB |
2403 | |
2404 | /* If purifying, and string starts with \ newline, | |
2405 | return zero instead. This is for doc strings | |
08564963 | 2406 | that we are really going to find in etc/DOC.nn.nn */ |
265a9e55 | 2407 | if (!NILP (Vpurify_flag) && NILP (Vdoc_file_name) && cancel) |
078e7b4a JB |
2408 | return make_number (0); |
2409 | ||
5150eeec RS |
2410 | if (is_multibyte || force_singlebyte) |
2411 | ; | |
94e554db RS |
2412 | else if (load_convert_to_unibyte) |
2413 | { | |
2414 | Lisp_Object string; | |
a742d646 | 2415 | to_multibyte (&p, &end, &nchars); |
94e554db RS |
2416 | if (p - read_buffer != nchars) |
2417 | { | |
2418 | string = make_multibyte_string (read_buffer, nchars, | |
2419 | p - read_buffer); | |
2420 | return Fstring_make_unibyte (string); | |
2421 | } | |
5150eeec RS |
2422 | /* We can make a unibyte string directly. */ |
2423 | is_multibyte = 0; | |
94e554db | 2424 | } |
8db9dc66 RS |
2425 | else if (EQ (readcharfun, Qget_file_char) |
2426 | || EQ (readcharfun, Qlambda)) | |
a742d646 GM |
2427 | { |
2428 | /* Nowadays, reading directly from a file is used only for | |
2429 | compiled Emacs Lisp files, and those always use the | |
2430 | Emacs internal encoding. Meanwhile, Qlambda is used | |
2431 | for reading dynamic byte code (compiled with | |
81a268b4 RS |
2432 | byte-compile-dynamic = t). So make the string multibyte |
2433 | if the string contains any multibyte sequences. | |
2434 | (to_multibyte is a no-op if not.) */ | |
a742d646 | 2435 | to_multibyte (&p, &end, &nchars); |
81a268b4 | 2436 | is_multibyte = (p - read_buffer) != nchars; |
a742d646 | 2437 | } |
e28552a4 | 2438 | else |
bed23cb2 RS |
2439 | /* In all other cases, if we read these bytes as |
2440 | separate characters, treat them as separate characters now. */ | |
5150eeec | 2441 | ; |
e7fc914b | 2442 | |
abb13b09 CW |
2443 | /* We want readchar_count to be the number of characters, not |
2444 | bytes. Hence we adjust for multibyte characters in the | |
2445 | string. ... But it doesn't seem to be necessary, because | |
2446 | READCHAR *does* read multibyte characters from buffers. */ | |
2447 | /* readchar_count -= (p - read_buffer) - nchars; */ | |
e7fc914b | 2448 | if (read_pure) |
491f16a2 | 2449 | return make_pure_string (read_buffer, nchars, p - read_buffer, |
5150eeec | 2450 | is_multibyte); |
491f16a2 | 2451 | return make_specified_string (read_buffer, nchars, p - read_buffer, |
5150eeec | 2452 | is_multibyte); |
078e7b4a JB |
2453 | } |
2454 | ||
109d300c JB |
2455 | case '.': |
2456 | { | |
109d300c JB |
2457 | int next_char = READCHAR; |
2458 | UNREAD (next_char); | |
2459 | ||
035eec48 | 2460 | if (next_char <= 040 |
e613ea97 KH |
2461 | || (next_char < 0200 |
2462 | && index ("\"';([#?", next_char) | |
2463 | || (!first_in_list && next_char == '`') | |
2464 | || (new_backquote_flag && next_char == ','))) | |
109d300c | 2465 | { |
6428369f KH |
2466 | *pch = c; |
2467 | return Qnil; | |
109d300c JB |
2468 | } |
2469 | ||
2470 | /* Otherwise, we fall through! Note that the atom-reading loop | |
2471 | below will now loop at least once, assuring that we will not | |
2472 | try to UNREAD two characters in a row. */ | |
2473 | } | |
078e7b4a | 2474 | default: |
17634846 | 2475 | default_label: |
078e7b4a JB |
2476 | if (c <= 040) goto retry; |
2477 | { | |
38404229 | 2478 | char *p = read_buffer; |
481c6336 | 2479 | int quoted = 0; |
078e7b4a JB |
2480 | |
2481 | { | |
38404229 | 2482 | char *end = read_buffer + read_buffer_size; |
078e7b4a | 2483 | |
6f7f43d5 | 2484 | while (c > 040 |
e613ea97 KH |
2485 | && (c >= 0200 |
2486 | || (!index ("\"';()[]#", c) | |
2487 | && !(!first_in_list && c == '`') | |
2488 | && !(new_backquote_flag && c == ',')))) | |
078e7b4a | 2489 | { |
449fea39 | 2490 | if (end - p < MAX_MULTIBYTE_LENGTH) |
078e7b4a | 2491 | { |
5d65df0d GM |
2492 | int offset = p - read_buffer; |
2493 | read_buffer = (char *) xrealloc (read_buffer, | |
2494 | read_buffer_size *= 2); | |
2495 | p = read_buffer + offset; | |
078e7b4a JB |
2496 | end = read_buffer + read_buffer_size; |
2497 | } | |
177c0ea7 | 2498 | |
078e7b4a | 2499 | if (c == '\\') |
481c6336 RS |
2500 | { |
2501 | c = READCHAR; | |
4ab11c09 GM |
2502 | if (c == -1) |
2503 | end_of_file_error (); | |
481c6336 RS |
2504 | quoted = 1; |
2505 | } | |
6f7f43d5 | 2506 | |
bed23cb2 | 2507 | if (! SINGLE_BYTE_CHAR_P (c)) |
449fea39 | 2508 | p += CHAR_STRING (c, p); |
bed23cb2 RS |
2509 | else |
2510 | *p++ = c; | |
6f7f43d5 | 2511 | |
078e7b4a JB |
2512 | c = READCHAR; |
2513 | } | |
2514 | ||
2515 | if (p == end) | |
2516 | { | |
5d65df0d GM |
2517 | int offset = p - read_buffer; |
2518 | read_buffer = (char *) xrealloc (read_buffer, | |
2519 | read_buffer_size *= 2); | |
2520 | p = read_buffer + offset; | |
2521 | end = read_buffer + read_buffer_size; | |
078e7b4a JB |
2522 | } |
2523 | *p = 0; | |
2524 | if (c >= 0) | |
2525 | UNREAD (c); | |
2526 | } | |
2527 | ||
4ad679f9 | 2528 | if (!quoted && !uninterned_symbol) |
481c6336 RS |
2529 | { |
2530 | register char *p1; | |
2531 | register Lisp_Object val; | |
2532 | p1 = read_buffer; | |
2533 | if (*p1 == '+' || *p1 == '-') p1++; | |
2534 | /* Is it an integer? */ | |
2535 | if (p1 != p) | |
2536 | { | |
2537 | while (p1 != p && (c = *p1) >= '0' && c <= '9') p1++; | |
481c6336 RS |
2538 | /* Integers can have trailing decimal points. */ |
2539 | if (p1 > read_buffer && p1 < p && *p1 == '.') p1++; | |
481c6336 RS |
2540 | if (p1 == p) |
2541 | /* It is an integer. */ | |
2542 | { | |
481c6336 RS |
2543 | if (p1[-1] == '.') |
2544 | p1[-1] = '\0'; | |
faca07fb RS |
2545 | if (sizeof (int) == sizeof (EMACS_INT)) |
2546 | XSETINT (val, atoi (read_buffer)); | |
2547 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
2548 | XSETINT (val, atol (read_buffer)); | |
2549 | else | |
2550 | abort (); | |
481c6336 RS |
2551 | return val; |
2552 | } | |
2553 | } | |
481c6336 | 2554 | if (isfloat_string (read_buffer)) |
eb659c41 | 2555 | { |
a8972052 PE |
2556 | /* Compute NaN and infinities using 0.0 in a variable, |
2557 | to cope with compilers that think they are smarter | |
5e24a1f7 | 2558 | than we are. */ |
3c329963 | 2559 | double zero = 0.0; |
a8972052 PE |
2560 | |
2561 | double value; | |
2562 | ||
2563 | /* Negate the value ourselves. This treats 0, NaNs, | |
2564 | and infinity properly on IEEE floating point hosts, | |
2565 | and works around a common bug where atof ("-0.0") | |
2566 | drops the sign. */ | |
2567 | int negative = read_buffer[0] == '-'; | |
2568 | ||
2569 | /* The only way p[-1] can be 'F' or 'N', after isfloat_string | |
eb659c41 | 2570 | returns 1, is if the input ends in e+INF or e+NaN. */ |
a8972052 | 2571 | switch (p[-1]) |
eb659c41 | 2572 | { |
a8972052 PE |
2573 | case 'F': |
2574 | value = 1.0 / zero; | |
2575 | break; | |
2576 | case 'N': | |
2577 | value = zero / zero; | |
2578 | break; | |
2579 | default: | |
2580 | value = atof (read_buffer + negative); | |
2581 | break; | |
eb659c41 | 2582 | } |
a8972052 PE |
2583 | |
2584 | return make_float (negative ? - value : value); | |
eb659c41 | 2585 | } |
481c6336 | 2586 | } |
abb13b09 CW |
2587 | { |
2588 | Lisp_Object result = uninterned_symbol ? make_symbol (read_buffer) | |
2589 | : intern (read_buffer); | |
2590 | if (EQ (Vread_with_symbol_positions, Qt) | |
2591 | || EQ (Vread_with_symbol_positions, readcharfun)) | |
177c0ea7 | 2592 | Vread_symbol_positions_list = |
abb13b09 CW |
2593 | /* Kind of a hack; this will probably fail if characters |
2594 | in the symbol name were escaped. Not really a big | |
2595 | deal, though. */ | |
f74db720 SM |
2596 | Fcons (Fcons (result, |
2597 | make_number (readchar_count | |
2598 | - XFASTINT (Flength (Fsymbol_name (result))))), | |
abb13b09 CW |
2599 | Vread_symbol_positions_list); |
2600 | return result; | |
2601 | } | |
078e7b4a JB |
2602 | } |
2603 | } | |
2604 | } | |
2605 | \f | |
9e062b6c RS |
2606 | |
2607 | /* List of nodes we've seen during substitute_object_in_subtree. */ | |
2608 | static Lisp_Object seen_list; | |
2609 | ||
2610 | static void | |
2611 | substitute_object_in_subtree (object, placeholder) | |
2612 | Lisp_Object object; | |
2613 | Lisp_Object placeholder; | |
2614 | { | |
2615 | Lisp_Object check_object; | |
2616 | ||
2617 | /* We haven't seen any objects when we start. */ | |
2618 | seen_list = Qnil; | |
2619 | ||
2620 | /* Make all the substitutions. */ | |
2621 | check_object | |
2622 | = substitute_object_recurse (object, placeholder, object); | |
177c0ea7 | 2623 | |
9e062b6c RS |
2624 | /* Clear seen_list because we're done with it. */ |
2625 | seen_list = Qnil; | |
2626 | ||
2627 | /* The returned object here is expected to always eq the | |
2628 | original. */ | |
2629 | if (!EQ (check_object, object)) | |
2630 | error ("Unexpected mutation error in reader"); | |
2631 | } | |
2632 | ||
2633 | /* Feval doesn't get called from here, so no gc protection is needed. */ | |
2634 | #define SUBSTITUTE(get_val, set_val) \ | |
2635 | { \ | |
2636 | Lisp_Object old_value = get_val; \ | |
2637 | Lisp_Object true_value \ | |
2638 | = substitute_object_recurse (object, placeholder,\ | |
2639 | old_value); \ | |
2640 | \ | |
2641 | if (!EQ (old_value, true_value)) \ | |
2642 | { \ | |
2643 | set_val; \ | |
2644 | } \ | |
2645 | } | |
2646 | ||
2647 | static Lisp_Object | |
2648 | substitute_object_recurse (object, placeholder, subtree) | |
2649 | Lisp_Object object; | |
2650 | Lisp_Object placeholder; | |
2651 | Lisp_Object subtree; | |
2652 | { | |
2653 | /* If we find the placeholder, return the target object. */ | |
2654 | if (EQ (placeholder, subtree)) | |
2655 | return object; | |
2656 | ||
2657 | /* If we've been to this node before, don't explore it again. */ | |
2658 | if (!EQ (Qnil, Fmemq (subtree, seen_list))) | |
2659 | return subtree; | |
2660 | ||
2661 | /* If this node can be the entry point to a cycle, remember that | |
2662 | we've seen it. It can only be such an entry point if it was made | |
2663 | by #n=, which means that we can find it as a value in | |
2664 | read_objects. */ | |
2665 | if (!EQ (Qnil, Frassq (subtree, read_objects))) | |
2666 | seen_list = Fcons (subtree, seen_list); | |
177c0ea7 | 2667 | |
9e062b6c RS |
2668 | /* Recurse according to subtree's type. |
2669 | Every branch must return a Lisp_Object. */ | |
2670 | switch (XTYPE (subtree)) | |
2671 | { | |
2672 | case Lisp_Vectorlike: | |
2673 | { | |
2674 | int i; | |
7c752c80 | 2675 | int length = XINT (Flength(subtree)); |
9e062b6c RS |
2676 | for (i = 0; i < length; i++) |
2677 | { | |
2678 | Lisp_Object idx = make_number (i); | |
2679 | SUBSTITUTE (Faref (subtree, idx), | |
177c0ea7 | 2680 | Faset (subtree, idx, true_value)); |
9e062b6c RS |
2681 | } |
2682 | return subtree; | |
2683 | } | |
2684 | ||
2685 | case Lisp_Cons: | |
2686 | { | |
2687 | SUBSTITUTE (Fcar_safe (subtree), | |
e61b9b87 | 2688 | Fsetcar (subtree, true_value)); |
9e062b6c | 2689 | SUBSTITUTE (Fcdr_safe (subtree), |
e61b9b87 | 2690 | Fsetcdr (subtree, true_value)); |
9e062b6c RS |
2691 | return subtree; |
2692 | } | |
2693 | ||
9e062b6c RS |
2694 | case Lisp_String: |
2695 | { | |
2696 | /* Check for text properties in each interval. | |
e61b9b87 | 2697 | substitute_in_interval contains part of the logic. */ |
9e062b6c | 2698 | |
d5db4077 | 2699 | INTERVAL root_interval = STRING_INTERVALS (subtree); |
9e062b6c | 2700 | Lisp_Object arg = Fcons (object, placeholder); |
177c0ea7 | 2701 | |
0d74b006 SM |
2702 | traverse_intervals_noorder (root_interval, |
2703 | &substitute_in_interval, arg); | |
9e062b6c RS |
2704 | |
2705 | return subtree; | |
2706 | } | |
9e062b6c RS |
2707 | |
2708 | /* Other types don't recurse any further. */ | |
2709 | default: | |
2710 | return subtree; | |
2711 | } | |
2712 | } | |
2713 | ||
2714 | /* Helper function for substitute_object_recurse. */ | |
2715 | static void | |
2716 | substitute_in_interval (interval, arg) | |
2717 | INTERVAL interval; | |
2718 | Lisp_Object arg; | |
2719 | { | |
2720 | Lisp_Object object = Fcar (arg); | |
2721 | Lisp_Object placeholder = Fcdr (arg); | |
2722 | ||
2723 | SUBSTITUTE(interval->plist, interval->plist = true_value); | |
2724 | } | |
2725 | ||
2726 | \f | |
078e7b4a JB |
2727 | #define LEAD_INT 1 |
2728 | #define DOT_CHAR 2 | |
2729 | #define TRAIL_INT 4 | |
2730 | #define E_CHAR 8 | |
2731 | #define EXP_INT 16 | |
2732 | ||
2733 | int | |
2734 | isfloat_string (cp) | |
2735 | register char *cp; | |
2736 | { | |
c1a2f60a | 2737 | register int state; |
177c0ea7 | 2738 | |
d8578e58 RS |
2739 | char *start = cp; |
2740 | ||
078e7b4a JB |
2741 | state = 0; |
2742 | if (*cp == '+' || *cp == '-') | |
2743 | cp++; | |
2744 | ||
075027b1 | 2745 | if (*cp >= '0' && *cp <= '9') |
078e7b4a JB |
2746 | { |
2747 | state |= LEAD_INT; | |
075027b1 RS |
2748 | while (*cp >= '0' && *cp <= '9') |
2749 | cp++; | |
078e7b4a JB |
2750 | } |
2751 | if (*cp == '.') | |
2752 | { | |
2753 | state |= DOT_CHAR; | |
2754 | cp++; | |
2755 | } | |
075027b1 | 2756 | if (*cp >= '0' && *cp <= '9') |
078e7b4a JB |
2757 | { |
2758 | state |= TRAIL_INT; | |
075027b1 | 2759 | while (*cp >= '0' && *cp <= '9') |
078e7b4a JB |
2760 | cp++; |
2761 | } | |
a35f88bf | 2762 | if (*cp == 'e' || *cp == 'E') |
078e7b4a JB |
2763 | { |
2764 | state |= E_CHAR; | |
2765 | cp++; | |
e73997a1 RS |
2766 | if (*cp == '+' || *cp == '-') |
2767 | cp++; | |
078e7b4a | 2768 | } |
078e7b4a | 2769 | |
075027b1 | 2770 | if (*cp >= '0' && *cp <= '9') |
078e7b4a JB |
2771 | { |
2772 | state |= EXP_INT; | |
075027b1 | 2773 | while (*cp >= '0' && *cp <= '9') |
078e7b4a JB |
2774 | cp++; |
2775 | } | |
d8578e58 RS |
2776 | else if (cp == start) |
2777 | ; | |
eb659c41 RS |
2778 | else if (cp[-1] == '+' && cp[0] == 'I' && cp[1] == 'N' && cp[2] == 'F') |
2779 | { | |
2780 | state |= EXP_INT; | |
2781 | cp += 3; | |
2782 | } | |
2783 | else if (cp[-1] == '+' && cp[0] == 'N' && cp[1] == 'a' && cp[2] == 'N') | |
2784 | { | |
2785 | state |= EXP_INT; | |
2786 | cp += 3; | |
2787 | } | |
2788 | ||
37579d7c | 2789 | return (((*cp == 0) || (*cp == ' ') || (*cp == '\t') || (*cp == '\n') || (*cp == '\r') || (*cp == '\f')) |
078e7b4a | 2790 | && (state == (LEAD_INT|DOT_CHAR|TRAIL_INT) |
151bdc83 | 2791 | || state == (DOT_CHAR|TRAIL_INT) |
078e7b4a | 2792 | || state == (LEAD_INT|E_CHAR|EXP_INT) |
151bdc83 JB |
2793 | || state == (LEAD_INT|DOT_CHAR|TRAIL_INT|E_CHAR|EXP_INT) |
2794 | || state == (DOT_CHAR|TRAIL_INT|E_CHAR|EXP_INT))); | |
078e7b4a | 2795 | } |
cc94f3b2 | 2796 | |
078e7b4a JB |
2797 | \f |
2798 | static Lisp_Object | |
c15cfd1f | 2799 | read_vector (readcharfun, bytecodeflag) |
078e7b4a | 2800 | Lisp_Object readcharfun; |
c15cfd1f | 2801 | int bytecodeflag; |
078e7b4a JB |
2802 | { |
2803 | register int i; | |
2804 | register int size; | |
2805 | register Lisp_Object *ptr; | |
c15cfd1f | 2806 | register Lisp_Object tem, item, vector; |
078e7b4a JB |
2807 | register struct Lisp_Cons *otem; |
2808 | Lisp_Object len; | |
2809 | ||
2810 | tem = read_list (1, readcharfun); | |
2811 | len = Flength (tem); | |
2812 | vector = (read_pure ? make_pure_vector (XINT (len)) : Fmake_vector (len, Qnil)); | |
2813 | ||
078e7b4a JB |
2814 | size = XVECTOR (vector)->size; |
2815 | ptr = XVECTOR (vector)->contents; | |
2816 | for (i = 0; i < size; i++) | |
2817 | { | |
c15cfd1f RS |
2818 | item = Fcar (tem); |
2819 | /* If `load-force-doc-strings' is t when reading a lazily-loaded | |
2820 | bytecode object, the docstring containing the bytecode and | |
2821 | constants values must be treated as unibyte and passed to | |
2822 | Fread, to get the actual bytecode string and constants vector. */ | |
2823 | if (bytecodeflag && load_force_doc_strings) | |
2824 | { | |
2825 | if (i == COMPILED_BYTECODE) | |
2826 | { | |
2827 | if (!STRINGP (item)) | |
2828 | error ("invalid byte code"); | |
2829 | ||
2830 | /* Delay handling the bytecode slot until we know whether | |
2831 | it is lazily-loaded (we can tell by whether the | |
2832 | constants slot is nil). */ | |
2833 | ptr[COMPILED_CONSTANTS] = item; | |
2834 | item = Qnil; | |
2835 | } | |
2836 | else if (i == COMPILED_CONSTANTS) | |
2837 | { | |
2838 | Lisp_Object bytestr = ptr[COMPILED_CONSTANTS]; | |
2839 | ||
2840 | if (NILP (item)) | |
2841 | { | |
2842 | /* Coerce string to unibyte (like string-as-unibyte, | |
2843 | but without generating extra garbage and | |
2844 | guaranteeing no change in the contents). */ | |
bee91904 | 2845 | STRING_SET_CHARS (bytestr, SBYTES (bytestr)); |
d5db4077 | 2846 | STRING_SET_UNIBYTE (bytestr); |
c15cfd1f RS |
2847 | |
2848 | item = Fread (bytestr); | |
2849 | if (!CONSP (item)) | |
2850 | error ("invalid byte code"); | |
2851 | ||
2852 | otem = XCONS (item); | |
c1d497be KR |
2853 | bytestr = XCAR (item); |
2854 | item = XCDR (item); | |
c15cfd1f RS |
2855 | free_cons (otem); |
2856 | } | |
2857 | ||
2858 | /* Now handle the bytecode slot. */ | |
2859 | ptr[COMPILED_BYTECODE] = read_pure ? Fpurecopy (bytestr) : bytestr; | |
2860 | } | |
2861 | } | |
2862 | ptr[i] = read_pure ? Fpurecopy (item) : item; | |
078e7b4a JB |
2863 | otem = XCONS (tem); |
2864 | tem = Fcdr (tem); | |
2865 | free_cons (otem); | |
2866 | } | |
2867 | return vector; | |
2868 | } | |
177c0ea7 | 2869 | |
6f7f43d5 RS |
2870 | /* FLAG = 1 means check for ] to terminate rather than ) and . |
2871 | FLAG = -1 means check for starting with defun | |
078e7b4a JB |
2872 | and make structure pure. */ |
2873 | ||
2874 | static Lisp_Object | |
2875 | read_list (flag, readcharfun) | |
2876 | int flag; | |
2877 | register Lisp_Object readcharfun; | |
2878 | { | |
2879 | /* -1 means check next element for defun, | |
2880 | 0 means don't check, | |
2881 | 1 means already checked and found defun. */ | |
2882 | int defunflag = flag < 0 ? -1 : 0; | |
2883 | Lisp_Object val, tail; | |
2884 | register Lisp_Object elt, tem; | |
2885 | struct gcpro gcpro1, gcpro2; | |
821d417e | 2886 | /* 0 is the normal case. |
b2a30870 | 2887 | 1 means this list is a doc reference; replace it with the number 0. |
177c0ea7 | 2888 | 2 means this list is a doc reference; replace it with the doc string. */ |
821d417e | 2889 | int doc_reference = 0; |
078e7b4a | 2890 | |
17634846 RS |
2891 | /* Initialize this to 1 if we are reading a list. */ |
2892 | int first_in_list = flag <= 0; | |
2893 | ||
078e7b4a JB |
2894 | val = Qnil; |
2895 | tail = Qnil; | |
2896 | ||
2897 | while (1) | |
2898 | { | |
e28552a4 | 2899 | int ch; |
078e7b4a | 2900 | GCPRO2 (val, tail); |
17634846 | 2901 | elt = read1 (readcharfun, &ch, first_in_list); |
078e7b4a | 2902 | UNGCPRO; |
20ea2964 | 2903 | |
17634846 RS |
2904 | first_in_list = 0; |
2905 | ||
821d417e | 2906 | /* While building, if the list starts with #$, treat it specially. */ |
20ea2964 | 2907 | if (EQ (elt, Vload_file_name) |
d49f0c1a | 2908 | && ! NILP (elt) |
821d417e RS |
2909 | && !NILP (Vpurify_flag)) |
2910 | { | |
2911 | if (NILP (Vdoc_file_name)) | |
2912 | /* We have not yet called Snarf-documentation, so assume | |
2913 | this file is described in the DOC-MM.NN file | |
2914 | and Snarf-documentation will fill in the right value later. | |
2915 | For now, replace the whole list with 0. */ | |
2916 | doc_reference = 1; | |
2917 | else | |
2918 | /* We have already called Snarf-documentation, so make a relative | |
2919 | file name for this file, so it can be found properly | |
2920 | in the installed Lisp directory. | |
2921 | We don't use Fexpand_file_name because that would make | |
2922 | the directory absolute now. */ | |
2923 | elt = concat2 (build_string ("../lisp/"), | |
2924 | Ffile_name_nondirectory (elt)); | |
2925 | } | |
b2a30870 | 2926 | else if (EQ (elt, Vload_file_name) |
d49f0c1a | 2927 | && ! NILP (elt) |
b2a30870 RS |
2928 | && load_force_doc_strings) |
2929 | doc_reference = 2; | |
20ea2964 | 2930 | |
6428369f | 2931 | if (ch) |
078e7b4a JB |
2932 | { |
2933 | if (flag > 0) | |
2934 | { | |
6428369f | 2935 | if (ch == ']') |
078e7b4a | 2936 | return val; |
821d417e RS |
2937 | Fsignal (Qinvalid_read_syntax, |
2938 | Fcons (make_string (") or . in a vector", 18), Qnil)); | |
078e7b4a | 2939 | } |
6428369f | 2940 | if (ch == ')') |
078e7b4a | 2941 | return val; |
6428369f | 2942 | if (ch == '.') |
078e7b4a JB |
2943 | { |
2944 | GCPRO2 (val, tail); | |
265a9e55 | 2945 | if (!NILP (tail)) |
f5df591a | 2946 | XSETCDR (tail, read0 (readcharfun)); |
078e7b4a JB |
2947 | else |
2948 | val = read0 (readcharfun); | |
17634846 | 2949 | read1 (readcharfun, &ch, 0); |
078e7b4a | 2950 | UNGCPRO; |
6428369f | 2951 | if (ch == ')') |
821d417e RS |
2952 | { |
2953 | if (doc_reference == 1) | |
2954 | return make_number (0); | |
b2a30870 RS |
2955 | if (doc_reference == 2) |
2956 | { | |
2957 | /* Get a doc string from the file we are loading. | |
2958 | If it's in saved_doc_string, get it from there. */ | |
c1d497be | 2959 | int pos = XINT (XCDR (val)); |
c15cfd1f RS |
2960 | /* Position is negative for user variables. */ |
2961 | if (pos < 0) pos = -pos; | |
b2a30870 RS |
2962 | if (pos >= saved_doc_string_position |
2963 | && pos < (saved_doc_string_position | |
2964 | + saved_doc_string_length)) | |
2965 | { | |
2966 | int start = pos - saved_doc_string_position; | |
2967 | int from, to; | |
2968 | ||
2969 | /* Process quoting with ^A, | |
2970 | and find the end of the string, | |
2971 | which is marked with ^_ (037). */ | |
2972 | for (from = start, to = start; | |
2973 | saved_doc_string[from] != 037;) | |
2974 | { | |
2975 | int c = saved_doc_string[from++]; | |
2976 | if (c == 1) | |
2977 | { | |
2978 | c = saved_doc_string[from++]; | |
2979 | if (c == 1) | |
2980 | saved_doc_string[to++] = c; | |
2981 | else if (c == '0') | |
2982 | saved_doc_string[to++] = 0; | |
2983 | else if (c == '_') | |
2984 | saved_doc_string[to++] = 037; | |
2985 | } | |
2986 | else | |
2987 | saved_doc_string[to++] = c; | |
2988 | } | |
2989 | ||
2990 | return make_string (saved_doc_string + start, | |
2991 | to - start); | |
2992 | } | |
c15cfd1f RS |
2993 | /* Look in prev_saved_doc_string the same way. */ |
2994 | else if (pos >= prev_saved_doc_string_position | |
2995 | && pos < (prev_saved_doc_string_position | |
2996 | + prev_saved_doc_string_length)) | |
2997 | { | |
2998 | int start = pos - prev_saved_doc_string_position; | |
2999 | int from, to; | |
3000 | ||
3001 | /* Process quoting with ^A, | |
3002 | and find the end of the string, | |
3003 | which is marked with ^_ (037). */ | |
3004 | for (from = start, to = start; | |
3005 | prev_saved_doc_string[from] != 037;) | |
3006 | { | |
3007 | int c = prev_saved_doc_string[from++]; | |
3008 | if (c == 1) | |
3009 | { | |
3010 | c = prev_saved_doc_string[from++]; | |
3011 | if (c == 1) | |
3012 | prev_saved_doc_string[to++] = c; | |
3013 | else if (c == '0') | |
3014 | prev_saved_doc_string[to++] = 0; | |
3015 | else if (c == '_') | |
3016 | prev_saved_doc_string[to++] = 037; | |
3017 | } | |
3018 | else | |
3019 | prev_saved_doc_string[to++] = c; | |
3020 | } | |
3021 | ||
3022 | return make_string (prev_saved_doc_string + start, | |
3023 | to - start); | |
3024 | } | |
b2a30870 | 3025 | else |
6fe9cce5 | 3026 | return get_doc_string (val, 0, 0); |
b2a30870 RS |
3027 | } |
3028 | ||
821d417e RS |
3029 | return val; |
3030 | } | |
078e7b4a JB |
3031 | return Fsignal (Qinvalid_read_syntax, Fcons (make_string (". in wrong context", 18), Qnil)); |
3032 | } | |
3033 | return Fsignal (Qinvalid_read_syntax, Fcons (make_string ("] in a list", 11), Qnil)); | |
3034 | } | |
3035 | tem = (read_pure && flag <= 0 | |
3036 | ? pure_cons (elt, Qnil) | |
3037 | : Fcons (elt, Qnil)); | |
265a9e55 | 3038 | if (!NILP (tail)) |
f5df591a | 3039 | XSETCDR (tail, tem); |
078e7b4a JB |
3040 | else |
3041 | val = tem; | |
3042 | tail = tem; | |
3043 | if (defunflag < 0) | |
3044 | defunflag = EQ (elt, Qdefun); | |
3045 | else if (defunflag > 0) | |
3046 | read_pure = 1; | |
3047 | } | |
3048 | } | |
3049 | \f | |
3050 | Lisp_Object Vobarray; | |
3051 | Lisp_Object initial_obarray; | |
3052 | ||
d007f5c8 RS |
3053 | /* oblookup stores the bucket number here, for the sake of Funintern. */ |
3054 | ||
3055 | int oblookup_last_bucket_number; | |
3056 | ||
3057 | static int hash_string (); | |
d007f5c8 RS |
3058 | |
3059 | /* Get an error if OBARRAY is not an obarray. | |
3060 | If it is one, return it. */ | |
3061 | ||
078e7b4a JB |
3062 | Lisp_Object |
3063 | check_obarray (obarray) | |
3064 | Lisp_Object obarray; | |
3065 | { | |
cfff016d | 3066 | while (!VECTORP (obarray) || XVECTOR (obarray)->size == 0) |
078e7b4a JB |
3067 | { |
3068 | /* If Vobarray is now invalid, force it to be valid. */ | |
3069 | if (EQ (Vobarray, obarray)) Vobarray = initial_obarray; | |
3070 | ||
3071 | obarray = wrong_type_argument (Qvectorp, obarray); | |
3072 | } | |
3073 | return obarray; | |
3074 | } | |
3075 | ||
d007f5c8 RS |
3076 | /* Intern the C string STR: return a symbol with that name, |
3077 | interned in the current obarray. */ | |
078e7b4a JB |
3078 | |
3079 | Lisp_Object | |
3080 | intern (str) | |
4b2dd274 | 3081 | const char *str; |
078e7b4a JB |
3082 | { |
3083 | Lisp_Object tem; | |
3084 | int len = strlen (str); | |
153a17b7 | 3085 | Lisp_Object obarray; |
078e7b4a | 3086 | |
153a17b7 | 3087 | obarray = Vobarray; |
cfff016d | 3088 | if (!VECTORP (obarray) || XVECTOR (obarray)->size == 0) |
078e7b4a | 3089 | obarray = check_obarray (obarray); |
e28552a4 | 3090 | tem = oblookup (obarray, str, len, len); |
cfff016d | 3091 | if (SYMBOLP (tem)) |
078e7b4a | 3092 | return tem; |
87631ef7 | 3093 | return Fintern (make_string (str, len), obarray); |
078e7b4a | 3094 | } |
4ad679f9 EN |
3095 | |
3096 | /* Create an uninterned symbol with name STR. */ | |
3097 | ||
3098 | Lisp_Object | |
3099 | make_symbol (str) | |
3100 | char *str; | |
3101 | { | |
3102 | int len = strlen (str); | |
3103 | ||
3104 | return Fmake_symbol ((!NILP (Vpurify_flag) | |
491f16a2 | 3105 | ? make_pure_string (str, len, len, 0) |
4ad679f9 EN |
3106 | : make_string (str, len))); |
3107 | } | |
d007f5c8 | 3108 | \f |
078e7b4a | 3109 | DEFUN ("intern", Fintern, Sintern, 1, 2, 0, |
5de38842 PJ |
3110 | doc: /* Return the canonical symbol whose name is STRING. |
3111 | If there is none, one is created by this function and returned. | |
3112 | A second optional argument specifies the obarray to use; | |
3113 | it defaults to the value of `obarray'. */) | |
3114 | (string, obarray) | |
9391b698 | 3115 | Lisp_Object string, obarray; |
078e7b4a JB |
3116 | { |
3117 | register Lisp_Object tem, sym, *ptr; | |
3118 | ||
265a9e55 | 3119 | if (NILP (obarray)) obarray = Vobarray; |
078e7b4a JB |
3120 | obarray = check_obarray (obarray); |
3121 | ||
b7826503 | 3122 | CHECK_STRING (string); |
078e7b4a | 3123 | |
d5db4077 KR |
3124 | tem = oblookup (obarray, SDATA (string), |
3125 | SCHARS (string), | |
3126 | SBYTES (string)); | |
cfff016d | 3127 | if (!INTEGERP (tem)) |
078e7b4a JB |
3128 | return tem; |
3129 | ||
265a9e55 | 3130 | if (!NILP (Vpurify_flag)) |
9391b698 EN |
3131 | string = Fpurecopy (string); |
3132 | sym = Fmake_symbol (string); | |
44c6c019 GM |
3133 | |
3134 | if (EQ (obarray, initial_obarray)) | |
3135 | XSYMBOL (sym)->interned = SYMBOL_INTERNED_IN_INITIAL_OBARRAY; | |
3136 | else | |
3137 | XSYMBOL (sym)->interned = SYMBOL_INTERNED; | |
078e7b4a | 3138 | |
d5db4077 | 3139 | if ((SREF (string, 0) == ':') |
a458d45d | 3140 | && EQ (obarray, initial_obarray)) |
44c6c019 GM |
3141 | { |
3142 | XSYMBOL (sym)->constant = 1; | |
3143 | XSYMBOL (sym)->value = sym; | |
3144 | } | |
a0549832 | 3145 | |
078e7b4a | 3146 | ptr = &XVECTOR (obarray)->contents[XINT (tem)]; |
cfff016d | 3147 | if (SYMBOLP (*ptr)) |
078e7b4a JB |
3148 | XSYMBOL (sym)->next = XSYMBOL (*ptr); |
3149 | else | |
3150 | XSYMBOL (sym)->next = 0; | |
3151 | *ptr = sym; | |
3152 | return sym; | |
3153 | } | |
3154 | ||
3155 | DEFUN ("intern-soft", Fintern_soft, Sintern_soft, 1, 2, 0, | |
5de38842 PJ |
3156 | doc: /* Return the canonical symbol named NAME, or nil if none exists. |
3157 | NAME may be a string or a symbol. If it is a symbol, that exact | |
3158 | symbol is searched for. | |
3159 | A second optional argument specifies the obarray to use; | |
3160 | it defaults to the value of `obarray'. */) | |
3161 | (name, obarray) | |
b55048d4 | 3162 | Lisp_Object name, obarray; |
078e7b4a | 3163 | { |
c2d47f4b | 3164 | register Lisp_Object tem, string; |
078e7b4a | 3165 | |
265a9e55 | 3166 | if (NILP (obarray)) obarray = Vobarray; |
078e7b4a JB |
3167 | obarray = check_obarray (obarray); |
3168 | ||
b55048d4 GM |
3169 | if (!SYMBOLP (name)) |
3170 | { | |
b7826503 | 3171 | CHECK_STRING (name); |
c2d47f4b | 3172 | string = name; |
b55048d4 GM |
3173 | } |
3174 | else | |
c2d47f4b | 3175 | string = SYMBOL_NAME (name); |
078e7b4a | 3176 | |
c2d47f4b | 3177 | tem = oblookup (obarray, SDATA (string), SCHARS (string), SBYTES (string)); |
b55048d4 GM |
3178 | if (INTEGERP (tem) || (SYMBOLP (name) && !EQ (name, tem))) |
3179 | return Qnil; | |
3180 | else | |
078e7b4a | 3181 | return tem; |
078e7b4a | 3182 | } |
d007f5c8 RS |
3183 | \f |
3184 | DEFUN ("unintern", Funintern, Sunintern, 1, 2, 0, | |
5de38842 PJ |
3185 | doc: /* Delete the symbol named NAME, if any, from OBARRAY. |
3186 | The value is t if a symbol was found and deleted, nil otherwise. | |
3187 | NAME may be a string or a symbol. If it is a symbol, that symbol | |
3188 | is deleted, if it belongs to OBARRAY--no other symbol is deleted. | |
3189 | OBARRAY defaults to the value of the variable `obarray'. */) | |
3190 | (name, obarray) | |
d007f5c8 RS |
3191 | Lisp_Object name, obarray; |
3192 | { | |
3193 | register Lisp_Object string, tem; | |
3194 | int hash; | |
3195 | ||
3196 | if (NILP (obarray)) obarray = Vobarray; | |
3197 | obarray = check_obarray (obarray); | |
3198 | ||
3199 | if (SYMBOLP (name)) | |
d4c83cae | 3200 | string = SYMBOL_NAME (name); |
d007f5c8 RS |
3201 | else |
3202 | { | |
b7826503 | 3203 | CHECK_STRING (name); |
d007f5c8 RS |
3204 | string = name; |
3205 | } | |
3206 | ||
d5db4077 KR |
3207 | tem = oblookup (obarray, SDATA (string), |
3208 | SCHARS (string), | |
3209 | SBYTES (string)); | |
d007f5c8 RS |
3210 | if (INTEGERP (tem)) |
3211 | return Qnil; | |
3212 | /* If arg was a symbol, don't delete anything but that symbol itself. */ | |
3213 | if (SYMBOLP (name) && !EQ (name, tem)) | |
3214 | return Qnil; | |
3215 | ||
44c6c019 GM |
3216 | XSYMBOL (tem)->interned = SYMBOL_UNINTERNED; |
3217 | XSYMBOL (tem)->constant = 0; | |
3218 | XSYMBOL (tem)->indirect_variable = 0; | |
ca69c42f | 3219 | |
d007f5c8 RS |
3220 | hash = oblookup_last_bucket_number; |
3221 | ||
3222 | if (EQ (XVECTOR (obarray)->contents[hash], tem)) | |
b2a30870 RS |
3223 | { |
3224 | if (XSYMBOL (tem)->next) | |
3225 | XSETSYMBOL (XVECTOR (obarray)->contents[hash], XSYMBOL (tem)->next); | |
3226 | else | |
3227 | XSETINT (XVECTOR (obarray)->contents[hash], 0); | |
3228 | } | |
d007f5c8 RS |
3229 | else |
3230 | { | |
3231 | Lisp_Object tail, following; | |
3232 | ||
3233 | for (tail = XVECTOR (obarray)->contents[hash]; | |
3234 | XSYMBOL (tail)->next; | |
3235 | tail = following) | |
3236 | { | |
3237 | XSETSYMBOL (following, XSYMBOL (tail)->next); | |
3238 | if (EQ (following, tem)) | |
3239 | { | |
3240 | XSYMBOL (tail)->next = XSYMBOL (following)->next; | |
3241 | break; | |
3242 | } | |
3243 | } | |
3244 | } | |
3245 | ||
3246 | return Qt; | |
3247 | } | |
3248 | \f | |
3249 | /* Return the symbol in OBARRAY whose names matches the string | |
e28552a4 RS |
3250 | of SIZE characters (SIZE_BYTE bytes) at PTR. |
3251 | If there is no such symbol in OBARRAY, return nil. | |
d007f5c8 RS |
3252 | |
3253 | Also store the bucket number in oblookup_last_bucket_number. */ | |
078e7b4a JB |
3254 | |
3255 | Lisp_Object | |
e28552a4 | 3256 | oblookup (obarray, ptr, size, size_byte) |
078e7b4a | 3257 | Lisp_Object obarray; |
4b2dd274 | 3258 | register const char *ptr; |
e28552a4 | 3259 | int size, size_byte; |
078e7b4a | 3260 | { |
7a70b397 RS |
3261 | int hash; |
3262 | int obsize; | |
078e7b4a JB |
3263 | register Lisp_Object tail; |
3264 | Lisp_Object bucket, tem; | |
3265 | ||
cfff016d | 3266 | if (!VECTORP (obarray) |
7c79a684 | 3267 | || (obsize = XVECTOR (obarray)->size) == 0) |
078e7b4a JB |
3268 | { |
3269 | obarray = check_obarray (obarray); | |
3270 | obsize = XVECTOR (obarray)->size; | |
3271 | } | |
519418b3 RS |
3272 | /* This is sometimes needed in the middle of GC. */ |
3273 | obsize &= ~ARRAY_MARK_FLAG; | |
078e7b4a | 3274 | /* Combining next two lines breaks VMS C 2.3. */ |
e28552a4 | 3275 | hash = hash_string (ptr, size_byte); |
078e7b4a JB |
3276 | hash %= obsize; |
3277 | bucket = XVECTOR (obarray)->contents[hash]; | |
d007f5c8 | 3278 | oblookup_last_bucket_number = hash; |
078e7b4a JB |
3279 | if (XFASTINT (bucket) == 0) |
3280 | ; | |
cfff016d | 3281 | else if (!SYMBOLP (bucket)) |
078e7b4a | 3282 | error ("Bad data in guts of obarray"); /* Like CADR error message */ |
d007f5c8 RS |
3283 | else |
3284 | for (tail = bucket; ; XSETSYMBOL (tail, XSYMBOL (tail)->next)) | |
078e7b4a | 3285 | { |
d5db4077 KR |
3286 | if (SBYTES (SYMBOL_NAME (tail)) == size_byte |
3287 | && SCHARS (SYMBOL_NAME (tail)) == size | |
3288 | && !bcmp (SDATA (SYMBOL_NAME (tail)), ptr, size_byte)) | |
078e7b4a JB |
3289 | return tail; |
3290 | else if (XSYMBOL (tail)->next == 0) | |
3291 | break; | |
3292 | } | |
1805de4f | 3293 | XSETINT (tem, hash); |
078e7b4a JB |
3294 | return tem; |
3295 | } | |
3296 | ||
3297 | static int | |
3298 | hash_string (ptr, len) | |
4b2dd274 | 3299 | const unsigned char *ptr; |
078e7b4a JB |
3300 | int len; |
3301 | { | |
4b2dd274 KR |
3302 | register const unsigned char *p = ptr; |
3303 | register const unsigned char *end = p + len; | |
078e7b4a JB |
3304 | register unsigned char c; |
3305 | register int hash = 0; | |
3306 | ||
3307 | while (p != end) | |
3308 | { | |
3309 | c = *p++; | |
3310 | if (c >= 0140) c -= 40; | |
3311 | hash = ((hash<<3) + (hash>>28) + c); | |
3312 | } | |
3313 | return hash & 07777777777; | |
3314 | } | |
d007f5c8 | 3315 | \f |
078e7b4a JB |
3316 | void |
3317 | map_obarray (obarray, fn, arg) | |
3318 | Lisp_Object obarray; | |
d5b28a9d | 3319 | void (*fn) P_ ((Lisp_Object, Lisp_Object)); |
078e7b4a JB |
3320 | Lisp_Object arg; |
3321 | { | |
3322 | register int i; | |
3323 | register Lisp_Object tail; | |
b7826503 | 3324 | CHECK_VECTOR (obarray); |
078e7b4a JB |
3325 | for (i = XVECTOR (obarray)->size - 1; i >= 0; i--) |
3326 | { | |
3327 | tail = XVECTOR (obarray)->contents[i]; | |
4f5c4403 | 3328 | if (SYMBOLP (tail)) |
078e7b4a JB |
3329 | while (1) |
3330 | { | |
3331 | (*fn) (tail, arg); | |
3332 | if (XSYMBOL (tail)->next == 0) | |
3333 | break; | |
1805de4f | 3334 | XSETSYMBOL (tail, XSYMBOL (tail)->next); |
078e7b4a JB |
3335 | } |
3336 | } | |
3337 | } | |
3338 | ||
d5b28a9d | 3339 | void |
078e7b4a JB |
3340 | mapatoms_1 (sym, function) |
3341 | Lisp_Object sym, function; | |
3342 | { | |
3343 | call1 (function, sym); | |
3344 | } | |
3345 | ||
3346 | DEFUN ("mapatoms", Fmapatoms, Smapatoms, 1, 2, 0, | |
5de38842 PJ |
3347 | doc: /* Call FUNCTION on every symbol in OBARRAY. |
3348 | OBARRAY defaults to the value of `obarray'. */) | |
3349 | (function, obarray) | |
078e7b4a JB |
3350 | Lisp_Object function, obarray; |
3351 | { | |
265a9e55 | 3352 | if (NILP (obarray)) obarray = Vobarray; |
078e7b4a JB |
3353 | obarray = check_obarray (obarray); |
3354 | ||
3355 | map_obarray (obarray, mapatoms_1, function); | |
3356 | return Qnil; | |
3357 | } | |
3358 | ||
5e88a39e | 3359 | #define OBARRAY_SIZE 1511 |
078e7b4a JB |
3360 | |
3361 | void | |
3362 | init_obarray () | |
3363 | { | |
3364 | Lisp_Object oblength; | |
3365 | int hash; | |
3366 | Lisp_Object *tem; | |
3367 | ||
baf69866 | 3368 | XSETFASTINT (oblength, OBARRAY_SIZE); |
078e7b4a | 3369 | |
491f16a2 | 3370 | Qnil = Fmake_symbol (make_pure_string ("nil", 3, 3, 0)); |
078e7b4a JB |
3371 | Vobarray = Fmake_vector (oblength, make_number (0)); |
3372 | initial_obarray = Vobarray; | |
3373 | staticpro (&initial_obarray); | |
3374 | /* Intern nil in the obarray */ | |
44c6c019 GM |
3375 | XSYMBOL (Qnil)->interned = SYMBOL_INTERNED_IN_INITIAL_OBARRAY; |
3376 | XSYMBOL (Qnil)->constant = 1; | |
177c0ea7 | 3377 | |
078e7b4a JB |
3378 | /* These locals are to kludge around a pyramid compiler bug. */ |
3379 | hash = hash_string ("nil", 3); | |
3380 | /* Separate statement here to avoid VAXC bug. */ | |
3381 | hash %= OBARRAY_SIZE; | |
3382 | tem = &XVECTOR (Vobarray)->contents[hash]; | |
3383 | *tem = Qnil; | |
3384 | ||
491f16a2 | 3385 | Qunbound = Fmake_symbol (make_pure_string ("unbound", 7, 7, 0)); |
078e7b4a JB |
3386 | XSYMBOL (Qnil)->function = Qunbound; |
3387 | XSYMBOL (Qunbound)->value = Qunbound; | |
3388 | XSYMBOL (Qunbound)->function = Qunbound; | |
3389 | ||
3390 | Qt = intern ("t"); | |
3391 | XSYMBOL (Qnil)->value = Qnil; | |
3392 | XSYMBOL (Qnil)->plist = Qnil; | |
3393 | XSYMBOL (Qt)->value = Qt; | |
44c6c019 | 3394 | XSYMBOL (Qt)->constant = 1; |
078e7b4a JB |
3395 | |
3396 | /* Qt is correct even if CANNOT_DUMP. loadup.el will set to nil at end. */ | |
3397 | Vpurify_flag = Qt; | |
3398 | ||
3399 | Qvariable_documentation = intern ("variable-documentation"); | |
0f73bb1c | 3400 | staticpro (&Qvariable_documentation); |
078e7b4a | 3401 | |
449fea39 | 3402 | read_buffer_size = 100 + MAX_MULTIBYTE_LENGTH; |
3cb65b0e | 3403 | read_buffer = (char *) xmalloc (read_buffer_size); |
078e7b4a JB |
3404 | } |
3405 | \f | |
3406 | void | |
3407 | defsubr (sname) | |
3408 | struct Lisp_Subr *sname; | |
3409 | { | |
3410 | Lisp_Object sym; | |
3411 | sym = intern (sname->symbol_name); | |
1805de4f | 3412 | XSETSUBR (XSYMBOL (sym)->function, sname); |
078e7b4a JB |
3413 | } |
3414 | ||
3415 | #ifdef NOTDEF /* use fset in subr.el now */ | |
3416 | void | |
3417 | defalias (sname, string) | |
3418 | struct Lisp_Subr *sname; | |
3419 | char *string; | |
3420 | { | |
3421 | Lisp_Object sym; | |
3422 | sym = intern (string); | |
1805de4f | 3423 | XSETSUBR (XSYMBOL (sym)->function, sname); |
078e7b4a JB |
3424 | } |
3425 | #endif /* NOTDEF */ | |
3426 | ||
078e7b4a | 3427 | /* Define an "integer variable"; a symbol whose value is forwarded |
1a0f90f7 | 3428 | to a C variable of type int. Sample call: */ |
5de38842 | 3429 | /* DEFVAR_INT ("indent-tabs-mode", &indent_tabs_mode, "Documentation"); */ |
078e7b4a | 3430 | void |
e9e00ff2 | 3431 | defvar_int (namestring, address) |
078e7b4a | 3432 | char *namestring; |
31ade731 | 3433 | EMACS_INT *address; |
078e7b4a | 3434 | { |
1a0f90f7 | 3435 | Lisp_Object sym, val; |
078e7b4a | 3436 | sym = intern (namestring); |
1a0f90f7 | 3437 | val = allocate_misc (); |
47e28b2c | 3438 | XMISCTYPE (val) = Lisp_Misc_Intfwd; |
fc1e7df5 | 3439 | XINTFWD (val)->intvar = address; |
44c6c019 | 3440 | SET_SYMBOL_VALUE (sym, val); |
078e7b4a JB |
3441 | } |
3442 | ||
f0529b5b PJ |
3443 | /* Similar but define a variable whose value is t if address contains 1, |
3444 | nil if address contains 0 */ | |
078e7b4a | 3445 | void |
e9e00ff2 | 3446 | defvar_bool (namestring, address) |
078e7b4a JB |
3447 | char *namestring; |
3448 | int *address; | |
078e7b4a | 3449 | { |
1a0f90f7 | 3450 | Lisp_Object sym, val; |
078e7b4a | 3451 | sym = intern (namestring); |
1a0f90f7 | 3452 | val = allocate_misc (); |
47e28b2c | 3453 | XMISCTYPE (val) = Lisp_Misc_Boolfwd; |
fc1e7df5 | 3454 | XBOOLFWD (val)->boolvar = address; |
44c6c019 | 3455 | SET_SYMBOL_VALUE (sym, val); |
1ffcc3b1 | 3456 | Vbyte_boolean_vars = Fcons (sym, Vbyte_boolean_vars); |
078e7b4a JB |
3457 | } |
3458 | ||
1a0f90f7 KH |
3459 | /* Similar but define a variable whose value is the Lisp Object stored |
3460 | at address. Two versions: with and without gc-marking of the C | |
3461 | variable. The nopro version is used when that variable will be | |
3462 | gc-marked for some other reason, since marking the same slot twice | |
3463 | can cause trouble with strings. */ | |
078e7b4a | 3464 | void |
1a0f90f7 | 3465 | defvar_lisp_nopro (namestring, address) |
078e7b4a JB |
3466 | char *namestring; |
3467 | Lisp_Object *address; | |
078e7b4a | 3468 | { |
1a0f90f7 | 3469 | Lisp_Object sym, val; |
078e7b4a | 3470 | sym = intern (namestring); |
1a0f90f7 | 3471 | val = allocate_misc (); |
47e28b2c | 3472 | XMISCTYPE (val) = Lisp_Misc_Objfwd; |
fc1e7df5 | 3473 | XOBJFWD (val)->objvar = address; |
44c6c019 | 3474 | SET_SYMBOL_VALUE (sym, val); |
078e7b4a JB |
3475 | } |
3476 | ||
078e7b4a | 3477 | void |
1a0f90f7 | 3478 | defvar_lisp (namestring, address) |
078e7b4a JB |
3479 | char *namestring; |
3480 | Lisp_Object *address; | |
078e7b4a | 3481 | { |
1a0f90f7 KH |
3482 | defvar_lisp_nopro (namestring, address); |
3483 | staticpro (address); | |
078e7b4a JB |
3484 | } |
3485 | ||
078e7b4a | 3486 | /* Similar but define a variable whose value is the Lisp Object stored in |
2836d9a4 KH |
3487 | the current buffer. address is the address of the slot in the buffer |
3488 | that is current now. */ | |
078e7b4a JB |
3489 | |
3490 | void | |
4360b0c6 | 3491 | defvar_per_buffer (namestring, address, type, doc) |
078e7b4a JB |
3492 | char *namestring; |
3493 | Lisp_Object *address; | |
4360b0c6 | 3494 | Lisp_Object type; |
078e7b4a JB |
3495 | char *doc; |
3496 | { | |
1a0f90f7 | 3497 | Lisp_Object sym, val; |
078e7b4a | 3498 | int offset; |
078e7b4a JB |
3499 | |
3500 | sym = intern (namestring); | |
1a0f90f7 | 3501 | val = allocate_misc (); |
078e7b4a JB |
3502 | offset = (char *)address - (char *)current_buffer; |
3503 | ||
47e28b2c | 3504 | XMISCTYPE (val) = Lisp_Misc_Buffer_Objfwd; |
fc1e7df5 | 3505 | XBUFFER_OBJFWD (val)->offset = offset; |
44c6c019 | 3506 | SET_SYMBOL_VALUE (sym, val); |
11fd416e GM |
3507 | PER_BUFFER_SYMBOL (offset) = sym; |
3508 | PER_BUFFER_TYPE (offset) = type; | |
177c0ea7 | 3509 | |
11fd416e | 3510 | if (PER_BUFFER_IDX (offset) == 0) |
078e7b4a JB |
3511 | /* Did a DEFVAR_PER_BUFFER without initializing the corresponding |
3512 | slot of buffer_local_flags */ | |
3513 | abort (); | |
3514 | } | |
3515 | ||
950c215d KH |
3516 | |
3517 | /* Similar but define a variable whose value is the Lisp Object stored | |
4ac38690 | 3518 | at a particular offset in the current kboard object. */ |
950c215d KH |
3519 | |
3520 | void | |
4ac38690 | 3521 | defvar_kboard (namestring, offset) |
950c215d KH |
3522 | char *namestring; |
3523 | int offset; | |
3524 | { | |
3525 | Lisp_Object sym, val; | |
3526 | sym = intern (namestring); | |
3527 | val = allocate_misc (); | |
47e28b2c | 3528 | XMISCTYPE (val) = Lisp_Misc_Kboard_Objfwd; |
4ac38690 | 3529 | XKBOARD_OBJFWD (val)->offset = offset; |
44c6c019 | 3530 | SET_SYMBOL_VALUE (sym, val); |
950c215d | 3531 | } |
078e7b4a | 3532 | \f |
11938f10 KH |
3533 | /* Record the value of load-path used at the start of dumping |
3534 | so we can see if the site changed it later during dumping. */ | |
3535 | static Lisp_Object dump_path; | |
3536 | ||
d5b28a9d | 3537 | void |
279499f0 | 3538 | init_lread () |
078e7b4a | 3539 | { |
46947372 | 3540 | char *normal; |
e73997a1 | 3541 | int turn_off_warning = 0; |
078e7b4a | 3542 | |
279499f0 | 3543 | /* Compute the default load-path. */ |
46947372 JB |
3544 | #ifdef CANNOT_DUMP |
3545 | normal = PATH_LOADSEARCH; | |
e065a56e | 3546 | Vload_path = decode_env_path (0, normal); |
46947372 JB |
3547 | #else |
3548 | if (NILP (Vpurify_flag)) | |
3549 | normal = PATH_LOADSEARCH; | |
279499f0 | 3550 | else |
46947372 | 3551 | normal = PATH_DUMPLOADSEARCH; |
279499f0 | 3552 | |
46947372 JB |
3553 | /* In a dumped Emacs, we normally have to reset the value of |
3554 | Vload_path from PATH_LOADSEARCH, since the value that was dumped | |
3555 | uses ../lisp, instead of the path of the installed elisp | |
3556 | libraries. However, if it appears that Vload_path was changed | |
3557 | from the default before dumping, don't override that value. */ | |
4746118a JB |
3558 | if (initialized) |
3559 | { | |
4746118a | 3560 | if (! NILP (Fequal (dump_path, Vload_path))) |
80667d53 RS |
3561 | { |
3562 | Vload_path = decode_env_path (0, normal); | |
74180aa4 | 3563 | if (!NILP (Vinstallation_directory)) |
80667d53 | 3564 | { |
3ddff138 RS |
3565 | Lisp_Object tem, tem1, sitelisp; |
3566 | ||
3567 | /* Remove site-lisp dirs from path temporarily and store | |
3568 | them in sitelisp, then conc them on at the end so | |
3569 | they're always first in path. */ | |
3570 | sitelisp = Qnil; | |
3571 | while (1) | |
3572 | { | |
3573 | tem = Fcar (Vload_path); | |
3574 | tem1 = Fstring_match (build_string ("site-lisp"), | |
3575 | tem, Qnil); | |
3576 | if (!NILP (tem1)) | |
3577 | { | |
3578 | Vload_path = Fcdr (Vload_path); | |
3579 | sitelisp = Fcons (tem, sitelisp); | |
3580 | } | |
3581 | else | |
3582 | break; | |
3583 | } | |
3584 | ||
74180aa4 | 3585 | /* Add to the path the lisp subdir of the |
3a3056e5 | 3586 | installation dir, if it exists. */ |
74180aa4 RS |
3587 | tem = Fexpand_file_name (build_string ("lisp"), |
3588 | Vinstallation_directory); | |
3a3056e5 RS |
3589 | tem1 = Ffile_exists_p (tem); |
3590 | if (!NILP (tem1)) | |
3591 | { | |
3592 | if (NILP (Fmember (tem, Vload_path))) | |
e73997a1 RS |
3593 | { |
3594 | turn_off_warning = 1; | |
3ddff138 | 3595 | Vload_path = Fcons (tem, Vload_path); |
e73997a1 | 3596 | } |
3a3056e5 RS |
3597 | } |
3598 | else | |
3599 | /* That dir doesn't exist, so add the build-time | |
3600 | Lisp dirs instead. */ | |
3601 | Vload_path = nconc2 (Vload_path, dump_path); | |
c478f98c | 3602 | |
9fbc0116 RS |
3603 | /* Add leim under the installation dir, if it exists. */ |
3604 | tem = Fexpand_file_name (build_string ("leim"), | |
3605 | Vinstallation_directory); | |
3606 | tem1 = Ffile_exists_p (tem); | |
3607 | if (!NILP (tem1)) | |
3608 | { | |
3609 | if (NILP (Fmember (tem, Vload_path))) | |
3ddff138 | 3610 | Vload_path = Fcons (tem, Vload_path); |
9fbc0116 RS |
3611 | } |
3612 | ||
c478f98c RS |
3613 | /* Add site-list under the installation dir, if it exists. */ |
3614 | tem = Fexpand_file_name (build_string ("site-lisp"), | |
3615 | Vinstallation_directory); | |
3616 | tem1 = Ffile_exists_p (tem); | |
3617 | if (!NILP (tem1)) | |
3618 | { | |
3619 | if (NILP (Fmember (tem, Vload_path))) | |
3ddff138 | 3620 | Vload_path = Fcons (tem, Vload_path); |
c478f98c | 3621 | } |
0f337465 RS |
3622 | |
3623 | /* If Emacs was not built in the source directory, | |
9fbc0116 RS |
3624 | and it is run from where it was built, add to load-path |
3625 | the lisp, leim and site-lisp dirs under that directory. */ | |
0f337465 RS |
3626 | |
3627 | if (NILP (Fequal (Vinstallation_directory, Vsource_directory))) | |
3628 | { | |
33046fc9 RS |
3629 | Lisp_Object tem2; |
3630 | ||
0f337465 RS |
3631 | tem = Fexpand_file_name (build_string ("src/Makefile"), |
3632 | Vinstallation_directory); | |
3633 | tem1 = Ffile_exists_p (tem); | |
33046fc9 RS |
3634 | |
3635 | /* Don't be fooled if they moved the entire source tree | |
3636 | AFTER dumping Emacs. If the build directory is indeed | |
3637 | different from the source dir, src/Makefile.in and | |
3638 | src/Makefile will not be found together. */ | |
3639 | tem = Fexpand_file_name (build_string ("src/Makefile.in"), | |
3640 | Vinstallation_directory); | |
3641 | tem2 = Ffile_exists_p (tem); | |
3642 | if (!NILP (tem1) && NILP (tem2)) | |
0f337465 RS |
3643 | { |
3644 | tem = Fexpand_file_name (build_string ("lisp"), | |
3645 | Vsource_directory); | |
3646 | ||
3647 | if (NILP (Fmember (tem, Vload_path))) | |
3ddff138 | 3648 | Vload_path = Fcons (tem, Vload_path); |
0f337465 | 3649 | |
9fbc0116 RS |
3650 | tem = Fexpand_file_name (build_string ("leim"), |
3651 | Vsource_directory); | |
3652 | ||
3653 | if (NILP (Fmember (tem, Vload_path))) | |
3ddff138 | 3654 | Vload_path = Fcons (tem, Vload_path); |
9fbc0116 | 3655 | |
0f337465 RS |
3656 | tem = Fexpand_file_name (build_string ("site-lisp"), |
3657 | Vsource_directory); | |
3658 | ||
3659 | if (NILP (Fmember (tem, Vload_path))) | |
3ddff138 | 3660 | Vload_path = Fcons (tem, Vload_path); |
0f337465 RS |
3661 | } |
3662 | } | |
3ddff138 RS |
3663 | if (!NILP (sitelisp)) |
3664 | Vload_path = nconc2 (Fnreverse (sitelisp), Vload_path); | |
80667d53 RS |
3665 | } |
3666 | } | |
4746118a JB |
3667 | } |
3668 | else | |
11938f10 | 3669 | { |
7b396c6c RS |
3670 | /* NORMAL refers to the lisp dir in the source directory. */ |
3671 | /* We used to add ../lisp at the front here, but | |
3672 | that caused trouble because it was copied from dump_path | |
3673 | into Vload_path, aboe, when Vinstallation_directory was non-nil. | |
3674 | It should be unnecessary. */ | |
3675 | Vload_path = decode_env_path (0, normal); | |
11938f10 KH |
3676 | dump_path = Vload_path; |
3677 | } | |
46947372 | 3678 | #endif |
279499f0 | 3679 | |
536d6baa | 3680 | #if (!(defined(WINDOWSNT) || (defined(HAVE_CARBON)))) |
177c0ea7 JB |
3681 | /* When Emacs is invoked over network shares on NT, PATH_LOADSEARCH is |
3682 | almost never correct, thereby causing a warning to be printed out that | |
8e6208c5 | 3683 | confuses users. Since PATH_LOADSEARCH is always overridden by the |
f3d5f92d ST |
3684 | EMACSLOADPATH environment variable below, disable the warning on NT. |
3685 | Also, when using the "self-contained" option for Carbon Emacs for MacOSX, | |
3686 | the "standard" paths may not exist and would be overridden by | |
3687 | EMACSLOADPATH as on NT. Since this depends on how the executable | |
3688 | was build and packaged, turn off the warnings in general */ | |
317073d5 | 3689 | |
078e7b4a | 3690 | /* Warn if dirs in the *standard* path don't exist. */ |
e73997a1 RS |
3691 | if (!turn_off_warning) |
3692 | { | |
3693 | Lisp_Object path_tail; | |
078e7b4a | 3694 | |
e73997a1 RS |
3695 | for (path_tail = Vload_path; |
3696 | !NILP (path_tail); | |
c1d497be | 3697 | path_tail = XCDR (path_tail)) |
e73997a1 RS |
3698 | { |
3699 | Lisp_Object dirfile; | |
3700 | dirfile = Fcar (path_tail); | |
3701 | if (STRINGP (dirfile)) | |
3702 | { | |
3703 | dirfile = Fdirectory_file_name (dirfile); | |
d5db4077 | 3704 | if (access (SDATA (dirfile), 0) < 0) |
85496b8c | 3705 | dir_warning ("Warning: Lisp directory `%s' does not exist.\n", |
c1d497be | 3706 | XCAR (path_tail)); |
e73997a1 RS |
3707 | } |
3708 | } | |
3709 | } | |
536d6baa | 3710 | #endif /* !(WINDOWSNT || HAVE_CARBON) */ |
46947372 JB |
3711 | |
3712 | /* If the EMACSLOADPATH environment variable is set, use its value. | |
3713 | This doesn't apply if we're dumping. */ | |
ffd9c2a1 | 3714 | #ifndef CANNOT_DUMP |
46947372 JB |
3715 | if (NILP (Vpurify_flag) |
3716 | && egetenv ("EMACSLOADPATH")) | |
ffd9c2a1 | 3717 | #endif |
279499f0 | 3718 | Vload_path = decode_env_path ("EMACSLOADPATH", normal); |
279499f0 JB |
3719 | |
3720 | Vvalues = Qnil; | |
3721 | ||
078e7b4a | 3722 | load_in_progress = 0; |
4e53f562 | 3723 | Vload_file_name = Qnil; |
d2c6be7f RS |
3724 | |
3725 | load_descriptor_list = Qnil; | |
8f6b0411 RS |
3726 | |
3727 | Vstandard_input = Qt; | |
f74b0705 | 3728 | Vloads_in_progress = Qnil; |
078e7b4a JB |
3729 | } |
3730 | ||
85496b8c RS |
3731 | /* Print a warning, using format string FORMAT, that directory DIRNAME |
3732 | does not exist. Print it on stderr and put it in *Message*. */ | |
3733 | ||
d5b28a9d | 3734 | void |
85496b8c RS |
3735 | dir_warning (format, dirname) |
3736 | char *format; | |
3737 | Lisp_Object dirname; | |
3738 | { | |
3739 | char *buffer | |
d5db4077 | 3740 | = (char *) alloca (SCHARS (dirname) + strlen (format) + 5); |
85496b8c | 3741 | |
d5db4077 KR |
3742 | fprintf (stderr, format, SDATA (dirname)); |
3743 | sprintf (buffer, format, SDATA (dirname)); | |
9b69357e GV |
3744 | /* Don't log the warning before we've initialized!! */ |
3745 | if (initialized) | |
3746 | message_dolog (buffer, strlen (buffer), 0, STRING_MULTIBYTE (dirname)); | |
85496b8c RS |
3747 | } |
3748 | ||
078e7b4a | 3749 | void |
279499f0 | 3750 | syms_of_lread () |
078e7b4a JB |
3751 | { |
3752 | defsubr (&Sread); | |
3753 | defsubr (&Sread_from_string); | |
3754 | defsubr (&Sintern); | |
3755 | defsubr (&Sintern_soft); | |
d007f5c8 | 3756 | defsubr (&Sunintern); |
078e7b4a | 3757 | defsubr (&Sload); |
228d4b1c | 3758 | defsubr (&Seval_buffer); |
078e7b4a JB |
3759 | defsubr (&Seval_region); |
3760 | defsubr (&Sread_char); | |
3761 | defsubr (&Sread_char_exclusive); | |
078e7b4a | 3762 | defsubr (&Sread_event); |
078e7b4a JB |
3763 | defsubr (&Sget_file_char); |
3764 | defsubr (&Smapatoms); | |
86d00812 | 3765 | defsubr (&Slocate_file_internal); |
078e7b4a JB |
3766 | |
3767 | DEFVAR_LISP ("obarray", &Vobarray, | |
5de38842 PJ |
3768 | doc: /* Symbol table for use by `intern' and `read'. |
3769 | It is a vector whose length ought to be prime for best results. | |
3770 | The vector's contents don't make sense if examined from Lisp programs; | |
3771 | to find all the symbols in an obarray, use `mapatoms'. */); | |
078e7b4a JB |
3772 | |
3773 | DEFVAR_LISP ("values", &Vvalues, | |
5de38842 PJ |
3774 | doc: /* List of values of all expressions which were read, evaluated and printed. |
3775 | Order is reverse chronological. */); | |
078e7b4a JB |
3776 | |
3777 | DEFVAR_LISP ("standard-input", &Vstandard_input, | |
5de38842 PJ |
3778 | doc: /* Stream for read to get input from. |
3779 | See documentation of `read' for possible values. */); | |
078e7b4a JB |
3780 | Vstandard_input = Qt; |
3781 | ||
abb13b09 CW |
3782 | DEFVAR_LISP ("read-with-symbol-positions", &Vread_with_symbol_positions, |
3783 | doc: /* If non-nil, add position of read symbols to `read-symbol-positions-list'. | |
3784 | ||
3785 | If this variable is a buffer, then only forms read from that buffer | |
3786 | will be added to `read-symbol-positions-list'. | |
3787 | If this variable is t, then all read forms will be added. | |
3788 | The effect of all other values other than nil are not currently | |
3789 | defined, although they may be in the future. | |
3790 | ||
3791 | The positions are relative to the last call to `read' or | |
3792 | `read-from-string'. It is probably a bad idea to set this variable at | |
3793 | the toplevel; bind it instead. */); | |
3794 | Vread_with_symbol_positions = Qnil; | |
3795 | ||
3796 | DEFVAR_LISP ("read-symbol-positions-list", &Vread_symbol_positions_list, | |
d6567030 | 3797 | doc: /* A list mapping read symbols to their positions. |
abb13b09 CW |
3798 | This variable is modified during calls to `read' or |
3799 | `read-from-string', but only when `read-with-symbol-positions' is | |
3800 | non-nil. | |
3801 | ||
3802 | Each element of the list looks like (SYMBOL . CHAR-POSITION), where | |
d6567030 | 3803 | CHAR-POSITION is an integer giving the offset of that occurrence of the |
abb13b09 CW |
3804 | symbol from the position where `read' or `read-from-string' started. |
3805 | ||
3806 | Note that a symbol will appear multiple times in this list, if it was | |
3807 | read multiple times. The list is in the same order as the symbols | |
3808 | were read in. */); | |
177c0ea7 | 3809 | Vread_symbol_positions_list = Qnil; |
abb13b09 | 3810 | |
078e7b4a | 3811 | DEFVAR_LISP ("load-path", &Vload_path, |
5de38842 PJ |
3812 | doc: /* *List of directories to search for files to load. |
3813 | Each element is a string (directory name) or nil (try default directory). | |
3814 | Initialized based on EMACSLOADPATH environment variable, if any, | |
3815 | otherwise to default specified by file `epaths.h' when Emacs was built. */); | |
078e7b4a | 3816 | |
e61b9b87 | 3817 | DEFVAR_LISP ("load-suffixes", &Vload_suffixes, |
5de38842 PJ |
3818 | doc: /* *List of suffixes to try for files to load. |
3819 | This list should not include the empty string. */); | |
e61b9b87 SM |
3820 | Vload_suffixes = Fcons (build_string (".elc"), |
3821 | Fcons (build_string (".el"), Qnil)); | |
ddb716ef SM |
3822 | /* We don't use empty_string because it's not initialized yet. */ |
3823 | default_suffixes = Fcons (build_string (""), Qnil); | |
e61b9b87 SM |
3824 | staticpro (&default_suffixes); |
3825 | ||
078e7b4a | 3826 | DEFVAR_BOOL ("load-in-progress", &load_in_progress, |
5de38842 | 3827 | doc: /* Non-nil iff inside of `load'. */); |
078e7b4a JB |
3828 | |
3829 | DEFVAR_LISP ("after-load-alist", &Vafter_load_alist, | |
5de38842 PJ |
3830 | doc: /* An alist of expressions to be evalled when particular files are loaded. |
3831 | Each element looks like (FILENAME FORMS...). | |
3832 | When `load' is run and the file-name argument is FILENAME, | |
3833 | the FORMS in the corresponding element are executed at the end of loading. | |
3834 | ||
3835 | FILENAME must match exactly! Normally FILENAME is the name of a library, | |
3836 | with no directory specified, since that is how `load' is normally called. | |
3837 | An error in FORMS does not undo the load, | |
3838 | but does prevent execution of the rest of the FORMS. | |
3839 | FILENAME can also be a symbol (a feature) and FORMS are then executed | |
3840 | when the corresponding call to `provide' is made. */); | |
078e7b4a JB |
3841 | Vafter_load_alist = Qnil; |
3842 | ||
ae321d28 | 3843 | DEFVAR_LISP ("load-history", &Vload_history, |
5de38842 PJ |
3844 | doc: /* Alist mapping source file names to symbols and features. |
3845 | Each alist element is a list that starts with a file name, | |
3846 | except for one element (optional) that starts with nil and describes | |
3847 | definitions evaluated from buffers not visiting files. | |
d642e4f9 RS |
3848 | The remaining elements of each list are symbols defined as functions, |
3849 | and cons cells of the form `(provide . FEATURE)', `(require . FEATURE)', | |
6042a06e RS |
3850 | `(defvar . VARIABLE), `(autoload . SYMBOL)', and `(t . SYMBOL)'. |
3851 | An element `(t . SYMBOL)' precedes an entry that is just SYMBOL, | |
3852 | and means that SYMBOL was an autoload before this file redefined it | |
3853 | as a function. */); | |
ae321d28 RS |
3854 | Vload_history = Qnil; |
3855 | ||
20ea2964 | 3856 | DEFVAR_LISP ("load-file-name", &Vload_file_name, |
5de38842 | 3857 | doc: /* Full name of file being loaded by `load'. */); |
20ea2964 RS |
3858 | Vload_file_name = Qnil; |
3859 | ||
4116ab9f | 3860 | DEFVAR_LISP ("user-init-file", &Vuser_init_file, |
5de38842 PJ |
3861 | doc: /* File name, including directory, of user's initialization file. |
3862 | If the file loaded had extension `.elc' and there was a corresponding `.el' | |
3863 | file, this variable contains the name of the .el file, suitable for use | |
3864 | by functions like `custom-save-all' which edit the init file. */); | |
4116ab9f KH |
3865 | Vuser_init_file = Qnil; |
3866 | ||
8a1f1537 | 3867 | DEFVAR_LISP ("current-load-list", &Vcurrent_load_list, |
5de38842 | 3868 | doc: /* Used for internal purposes by `load'. */); |
ae321d28 RS |
3869 | Vcurrent_load_list = Qnil; |
3870 | ||
84a15045 | 3871 | DEFVAR_LISP ("load-read-function", &Vload_read_function, |
5de38842 PJ |
3872 | doc: /* Function used by `load' and `eval-region' for reading expressions. |
3873 | The default is nil, which means use the function `read'. */); | |
84a15045 RS |
3874 | Vload_read_function = Qnil; |
3875 | ||
fe0e03f3 | 3876 | DEFVAR_LISP ("load-source-file-function", &Vload_source_file_function, |
5de38842 PJ |
3877 | doc: /* Function called in `load' for loading an Emacs lisp source file. |
3878 | This function is for doing code conversion before reading the source file. | |
3879 | If nil, loading is done without any code conversion. | |
3880 | Arguments are FULLNAME, FILE, NOERROR, NOMESSAGE, where | |
3881 | FULLNAME is the full name of FILE. | |
3882 | See `load' for the meaning of the remaining arguments. */); | |
fe0e03f3 KH |
3883 | Vload_source_file_function = Qnil; |
3884 | ||
b2a30870 | 3885 | DEFVAR_BOOL ("load-force-doc-strings", &load_force_doc_strings, |
5de38842 PJ |
3886 | doc: /* Non-nil means `load' should force-load all dynamic doc strings. |
3887 | This is useful when the file being loaded is a temporary copy. */); | |
b2a30870 RS |
3888 | load_force_doc_strings = 0; |
3889 | ||
94e554db | 3890 | DEFVAR_BOOL ("load-convert-to-unibyte", &load_convert_to_unibyte, |
5de38842 PJ |
3891 | doc: /* Non-nil means `read' converts strings to unibyte whenever possible. |
3892 | This is normally bound by `load' and `eval-buffer' to control `read', | |
3893 | and is not meant for users to change. */); | |
94e554db RS |
3894 | load_convert_to_unibyte = 0; |
3895 | ||
1521a8fa | 3896 | DEFVAR_LISP ("source-directory", &Vsource_directory, |
5de38842 PJ |
3897 | doc: /* Directory in which Emacs sources were found when Emacs was built. |
3898 | You cannot count on them to still be there! */); | |
a90ba1e2 KH |
3899 | Vsource_directory |
3900 | = Fexpand_file_name (build_string ("../"), | |
3901 | Fcar (decode_env_path (0, PATH_DUMPLOADSEARCH))); | |
3902 | ||
4b104c41 | 3903 | DEFVAR_LISP ("preloaded-file-list", &Vpreloaded_file_list, |
5de38842 | 3904 | doc: /* List of files that were preloaded (when dumping Emacs). */); |
4b104c41 RS |
3905 | Vpreloaded_file_list = Qnil; |
3906 | ||
1ffcc3b1 | 3907 | DEFVAR_LISP ("byte-boolean-vars", &Vbyte_boolean_vars, |
5de38842 | 3908 | doc: /* List of all DEFVAR_BOOL variables, used by the byte code optimizer. */); |
1ffcc3b1 DL |
3909 | Vbyte_boolean_vars = Qnil; |
3910 | ||
da84f340 | 3911 | DEFVAR_BOOL ("load-dangerous-libraries", &load_dangerous_libraries, |
5de38842 PJ |
3912 | doc: /* Non-nil means load dangerous compiled Lisp files. |
3913 | Some versions of XEmacs use different byte codes than Emacs. These | |
3914 | incompatible byte codes can make Emacs crash when it tries to execute | |
3915 | them. */); | |
da84f340 GM |
3916 | load_dangerous_libraries = 0; |
3917 | ||
bb970e67 | 3918 | DEFVAR_LISP ("bytecomp-version-regexp", &Vbytecomp_version_regexp, |
5de38842 PJ |
3919 | doc: /* Regular expression matching safe to load compiled Lisp files. |
3920 | When Emacs loads a compiled Lisp file, it reads the first 512 bytes | |
3921 | from the file, and matches them against this regular expression. | |
3922 | When the regular expression matches, the file is considered to be safe | |
3923 | to load. See also `load-dangerous-libraries'. */); | |
bb970e67 | 3924 | Vbytecomp_version_regexp |
f2e7d5eb | 3925 | = build_string ("^;;;.\\(in Emacs version\\|bytecomp version FSF\\)"); |
da84f340 | 3926 | |
a90ba1e2 KH |
3927 | /* Vsource_directory was initialized in init_lread. */ |
3928 | ||
d2c6be7f RS |
3929 | load_descriptor_list = Qnil; |
3930 | staticpro (&load_descriptor_list); | |
3931 | ||
8a1f1537 RS |
3932 | Qcurrent_load_list = intern ("current-load-list"); |
3933 | staticpro (&Qcurrent_load_list); | |
3934 | ||
078e7b4a JB |
3935 | Qstandard_input = intern ("standard-input"); |
3936 | staticpro (&Qstandard_input); | |
3937 | ||
3938 | Qread_char = intern ("read-char"); | |
3939 | staticpro (&Qread_char); | |
3940 | ||
3941 | Qget_file_char = intern ("get-file-char"); | |
3942 | staticpro (&Qget_file_char); | |
7bd279cd | 3943 | |
17634846 RS |
3944 | Qbackquote = intern ("`"); |
3945 | staticpro (&Qbackquote); | |
3946 | Qcomma = intern (","); | |
3947 | staticpro (&Qcomma); | |
3948 | Qcomma_at = intern (",@"); | |
3949 | staticpro (&Qcomma_at); | |
3950 | Qcomma_dot = intern (",."); | |
3951 | staticpro (&Qcomma_dot); | |
3952 | ||
74549846 RS |
3953 | Qinhibit_file_name_operation = intern ("inhibit-file-name-operation"); |
3954 | staticpro (&Qinhibit_file_name_operation); | |
3955 | ||
7bd279cd RS |
3956 | Qascii_character = intern ("ascii-character"); |
3957 | staticpro (&Qascii_character); | |
c2225d00 | 3958 | |
2b6cae0c RS |
3959 | Qfunction = intern ("function"); |
3960 | staticpro (&Qfunction); | |
3961 | ||
c2225d00 RS |
3962 | Qload = intern ("load"); |
3963 | staticpro (&Qload); | |
20ea2964 RS |
3964 | |
3965 | Qload_file_name = intern ("load-file-name"); | |
3966 | staticpro (&Qload_file_name); | |
11938f10 KH |
3967 | |
3968 | staticpro (&dump_path); | |
4ad679f9 EN |
3969 | |
3970 | staticpro (&read_objects); | |
3971 | read_objects = Qnil; | |
9e062b6c | 3972 | staticpro (&seen_list); |
177c0ea7 | 3973 | |
7ee3bd7b GM |
3974 | Vloads_in_progress = Qnil; |
3975 | staticpro (&Vloads_in_progress); | |
078e7b4a | 3976 | } |
ab5796a9 MB |
3977 | |
3978 | /* arch-tag: a0d02733-0f96-4844-a659-9fd53c4f414d | |
3979 | (do not change this comment) */ |