Commit | Line | Data |
---|---|---|
38010d50 | 1 | /* Lisp object printing and output streams. |
0b5538bd TTN |
2 | Copyright (C) 1985, 1986, 1988, 1993, 1994, 1995, 1997, |
3 | 1998, 1999, 2000, 2001, 2002, 2003, 2004, | |
8cabe764 | 4 | 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
38010d50 JB |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
8 | GNU Emacs is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
684d6f5b | 10 | the Free Software Foundation; either version 3, or (at your option) |
38010d50 JB |
11 | any later version. |
12 | ||
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GNU Emacs; see the file COPYING. If not, write to | |
4fc5845f LK |
20 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
21 | Boston, MA 02110-1301, USA. */ | |
38010d50 JB |
22 | |
23 | ||
18160b98 | 24 | #include <config.h> |
38010d50 | 25 | #include <stdio.h> |
38010d50 | 26 | #include "lisp.h" |
38010d50 | 27 | #include "buffer.h" |
8b4b4467 | 28 | #include "character.h" |
71ea13cb | 29 | #include "charset.h" |
2538fae4 | 30 | #include "keyboard.h" |
0137dbf7 | 31 | #include "frame.h" |
38010d50 JB |
32 | #include "window.h" |
33 | #include "process.h" | |
34 | #include "dispextern.h" | |
35 | #include "termchar.h" | |
7651e1f5 | 36 | #include "intervals.h" |
f9467be3 | 37 | #include "blockinput.h" |
f76c8b1e | 38 | #include "termhooks.h" /* For struct terminal. */ |
7651e1f5 | 39 | |
38010d50 JB |
40 | Lisp_Object Vstandard_output, Qstandard_output; |
41 | ||
d9c21094 RS |
42 | Lisp_Object Qtemp_buffer_setup_hook; |
43 | ||
2f100b5c EN |
44 | /* These are used to print like we read. */ |
45 | extern Lisp_Object Qbackquote, Qcomma, Qcomma_at, Qcomma_dot, Qfunction; | |
46 | ||
38010d50 | 47 | Lisp_Object Vfloat_output_format, Qfloat_output_format; |
f356c3fb PE |
48 | |
49 | /* Work around a problem that happens because math.h on hpux 7 | |
50 | defines two static variables--which, in Emacs, are not really static, | |
51 | because `static' is defined as nothing. The problem is that they are | |
52 | defined both here and in lread.c. | |
53 | These macros prevent the name conflict. */ | |
54 | #if defined (HPUX) && !defined (HPUX8) | |
55 | #define _MAXLDBL print_maxldbl | |
56 | #define _NMAXLDBL print_nmaxldbl | |
57 | #endif | |
58 | ||
59 | #include <math.h> | |
60 | ||
61 | #if STDC_HEADERS | |
62 | #include <float.h> | |
f356c3fb PE |
63 | #endif |
64 | ||
65 | /* Default to values appropriate for IEEE floating point. */ | |
66 | #ifndef FLT_RADIX | |
67 | #define FLT_RADIX 2 | |
68 | #endif | |
69 | #ifndef DBL_MANT_DIG | |
70 | #define DBL_MANT_DIG 53 | |
71 | #endif | |
72 | #ifndef DBL_DIG | |
73 | #define DBL_DIG 15 | |
74 | #endif | |
b0a1044b PE |
75 | #ifndef DBL_MIN |
76 | #define DBL_MIN 2.2250738585072014e-308 | |
77 | #endif | |
78 | ||
79 | #ifdef DBL_MIN_REPLACEMENT | |
80 | #undef DBL_MIN | |
81 | #define DBL_MIN DBL_MIN_REPLACEMENT | |
82 | #endif | |
f356c3fb PE |
83 | |
84 | /* Define DOUBLE_DIGITS_BOUND, an upper bound on the number of decimal digits | |
85 | needed to express a float without losing information. | |
86 | The general-case formula is valid for the usual case, IEEE floating point, | |
87 | but many compilers can't optimize the formula to an integer constant, | |
88 | so make a special case for it. */ | |
89 | #if FLT_RADIX == 2 && DBL_MANT_DIG == 53 | |
90 | #define DOUBLE_DIGITS_BOUND 17 /* IEEE floating point */ | |
91 | #else | |
92 | #define DOUBLE_DIGITS_BOUND ((int) ceil (log10 (pow (FLT_RADIX, DBL_MANT_DIG)))) | |
93 | #endif | |
94 | ||
38010d50 JB |
95 | /* Avoid actual stack overflow in print. */ |
96 | int print_depth; | |
97 | ||
a22dec27 SM |
98 | /* Level of nesting inside outputting backquote in new style. */ |
99 | int new_backquote_output; | |
0330bb60 | 100 | |
ec838c39 RS |
101 | /* Detect most circularities to print finite output. */ |
102 | #define PRINT_CIRCLE 200 | |
103 | Lisp_Object being_printed[PRINT_CIRCLE]; | |
104 | ||
6fec5601 RS |
105 | /* When printing into a buffer, first we put the text in this |
106 | block, then insert it all at once. */ | |
107 | char *print_buffer; | |
108 | ||
109 | /* Size allocated in print_buffer. */ | |
110 | int print_buffer_size; | |
dc2a0b79 | 111 | /* Chars stored in print_buffer. */ |
6fec5601 | 112 | int print_buffer_pos; |
dc2a0b79 RS |
113 | /* Bytes stored in print_buffer. */ |
114 | int print_buffer_pos_byte; | |
6fec5601 | 115 | |
38010d50 JB |
116 | /* Maximum length of list to print in full; noninteger means |
117 | effectively infinity */ | |
118 | ||
119 | Lisp_Object Vprint_length; | |
120 | ||
121 | /* Maximum depth of list to print in full; noninteger means | |
122 | effectively infinity. */ | |
123 | ||
124 | Lisp_Object Vprint_level; | |
125 | ||
126 | /* Nonzero means print newlines in strings as \n. */ | |
127 | ||
128 | int print_escape_newlines; | |
129 | ||
38940e93 RS |
130 | /* Nonzero means to print single-byte non-ascii characters in strings as |
131 | octal escapes. */ | |
132 | ||
133 | int print_escape_nonascii; | |
134 | ||
835d0be6 RS |
135 | /* Nonzero means to print multibyte characters in strings as hex escapes. */ |
136 | ||
137 | int print_escape_multibyte; | |
138 | ||
139 | Lisp_Object Qprint_escape_newlines; | |
140 | Lisp_Object Qprint_escape_multibyte, Qprint_escape_nonascii; | |
141 | ||
2f100b5c EN |
142 | /* Nonzero means print (quote foo) forms as 'foo, etc. */ |
143 | ||
144 | int print_quoted; | |
145 | ||
0f25ecc6 | 146 | /* Non-nil means print #: before uninterned symbols. */ |
081e0581 | 147 | |
e0f69431 | 148 | Lisp_Object Vprint_gensym; |
081e0581 | 149 | |
0f25ecc6 | 150 | /* Non-nil means print recursive structures using #n= and #n# syntax. */ |
081e0581 | 151 | |
0f25ecc6 RS |
152 | Lisp_Object Vprint_circle; |
153 | ||
154 | /* Non-nil means keep continuous number for #n= and #n# syntax | |
155 | between several print functions. */ | |
156 | ||
157 | Lisp_Object Vprint_continuous_numbering; | |
158 | ||
159 | /* Vprint_number_table is a vector like [OBJ1 STAT1 OBJ2 STAT2 ...], | |
160 | where OBJn are objects going to be printed, and STATn are their status, | |
161 | which may be different meanings during process. See the comments of | |
162 | the functions print and print_preprocess for details. | |
163 | print_number_index keeps the last position the next object should be added, | |
164 | twice of which is the actual vector position in Vprint_number_table. */ | |
165 | int print_number_index; | |
166 | Lisp_Object Vprint_number_table; | |
167 | ||
168 | /* PRINT_NUMBER_OBJECT returns the I'th object in Vprint_number_table TABLE. | |
169 | PRINT_NUMBER_STATUS returns the status of the I'th object in TABLE. | |
170 | See the comment of the variable Vprint_number_table. */ | |
171 | #define PRINT_NUMBER_OBJECT(table,i) XVECTOR ((table))->contents[(i) * 2] | |
172 | #define PRINT_NUMBER_STATUS(table,i) XVECTOR ((table))->contents[(i) * 2 + 1] | |
2f100b5c | 173 | |
5259c737 | 174 | /* Nonzero means print newline to stdout before next minibuffer message. |
38010d50 JB |
175 | Defined in xdisp.c */ |
176 | ||
177 | extern int noninteractive_need_newline; | |
5259c737 | 178 | |
aec2b95b RS |
179 | extern int minibuffer_auto_raise; |
180 | ||
38010d50 JB |
181 | #ifdef MAX_PRINT_CHARS |
182 | static int print_chars; | |
183 | static int max_print; | |
184 | #endif /* MAX_PRINT_CHARS */ | |
7651e1f5 RS |
185 | |
186 | void print_interval (); | |
38010d50 | 187 | |
945b0111 EZ |
188 | /* GDB resets this to zero on W32 to disable OutputDebugString calls. */ |
189 | int print_output_debug_flag = 1; | |
190 | ||
38010d50 | 191 | \f |
eb8c3be9 | 192 | /* Low level output routines for characters and strings */ |
38010d50 JB |
193 | |
194 | /* Lisp functions to do output using a stream | |
081e0581 EN |
195 | must have the stream in a variable called printcharfun |
196 | and must start with PRINTPREPARE, end with PRINTFINISH, | |
197 | and use PRINTDECLARE to declare common variables. | |
198 | Use PRINTCHAR to output one character, | |
177c0ea7 | 199 | or call strout to output a block of characters. */ |
0788646c GM |
200 | |
201 | #define PRINTDECLARE \ | |
202 | struct buffer *old = current_buffer; \ | |
ee5263af GM |
203 | int old_point = -1, start_point = -1; \ |
204 | int old_point_byte = -1, start_point_byte = -1; \ | |
aed13378 | 205 | int specpdl_count = SPECPDL_INDEX (); \ |
0788646c GM |
206 | int free_print_buffer = 0; \ |
207 | int multibyte = !NILP (current_buffer->enable_multibyte_characters); \ | |
081e0581 EN |
208 | Lisp_Object original |
209 | ||
0788646c GM |
210 | #define PRINTPREPARE \ |
211 | original = printcharfun; \ | |
212 | if (NILP (printcharfun)) printcharfun = Qt; \ | |
213 | if (BUFFERP (printcharfun)) \ | |
214 | { \ | |
215 | if (XBUFFER (printcharfun) != current_buffer) \ | |
216 | Fset_buffer (printcharfun); \ | |
217 | printcharfun = Qnil; \ | |
218 | } \ | |
219 | if (MARKERP (printcharfun)) \ | |
220 | { \ | |
1cf21850 | 221 | EMACS_INT marker_pos; \ |
cd3587c1 | 222 | if (! XMARKER (printcharfun)->buffer) \ |
0788646c | 223 | error ("Marker does not point anywhere"); \ |
1cf21850 LK |
224 | if (XMARKER (printcharfun)->buffer != current_buffer) \ |
225 | set_buffer_internal (XMARKER (printcharfun)->buffer); \ | |
226 | marker_pos = marker_position (printcharfun); \ | |
227 | if (marker_pos < BEGV || marker_pos > ZV) \ | |
228 | error ("Marker is outside the accessible part of the buffer"); \ | |
0788646c GM |
229 | old_point = PT; \ |
230 | old_point_byte = PT_BYTE; \ | |
1cf21850 | 231 | SET_PT_BOTH (marker_pos, \ |
0788646c GM |
232 | marker_byte_position (printcharfun)); \ |
233 | start_point = PT; \ | |
234 | start_point_byte = PT_BYTE; \ | |
235 | printcharfun = Qnil; \ | |
236 | } \ | |
237 | if (NILP (printcharfun)) \ | |
238 | { \ | |
239 | Lisp_Object string; \ | |
240 | if (NILP (current_buffer->enable_multibyte_characters) \ | |
241 | && ! print_escape_multibyte) \ | |
242 | specbind (Qprint_escape_multibyte, Qt); \ | |
d39f07c2 RS |
243 | if (! NILP (current_buffer->enable_multibyte_characters) \ |
244 | && ! print_escape_nonascii) \ | |
245 | specbind (Qprint_escape_nonascii, Qt); \ | |
0788646c GM |
246 | if (print_buffer != 0) \ |
247 | { \ | |
248 | string = make_string_from_bytes (print_buffer, \ | |
249 | print_buffer_pos, \ | |
250 | print_buffer_pos_byte); \ | |
251 | record_unwind_protect (print_unwind, string); \ | |
252 | } \ | |
253 | else \ | |
254 | { \ | |
255 | print_buffer_size = 1000; \ | |
256 | print_buffer = (char *) xmalloc (print_buffer_size); \ | |
257 | free_print_buffer = 1; \ | |
258 | } \ | |
259 | print_buffer_pos = 0; \ | |
260 | print_buffer_pos_byte = 0; \ | |
261 | } \ | |
5494b50f | 262 | if (EQ (printcharfun, Qt) && ! noninteractive) \ |
0f25ecc6 | 263 | setup_echo_area_for_printing (multibyte); |
38010d50 | 264 | |
8a2ab0c6 RS |
265 | #define PRINTFINISH \ |
266 | if (NILP (printcharfun)) \ | |
267 | { \ | |
268 | if (print_buffer_pos != print_buffer_pos_byte \ | |
269 | && NILP (current_buffer->enable_multibyte_characters)) \ | |
270 | { \ | |
271 | unsigned char *temp \ | |
272 | = (unsigned char *) alloca (print_buffer_pos + 1); \ | |
273 | copy_text (print_buffer, temp, print_buffer_pos_byte, \ | |
274 | 1, 0); \ | |
275 | insert_1_both (temp, print_buffer_pos, \ | |
276 | print_buffer_pos, 0, 1, 0); \ | |
277 | } \ | |
278 | else \ | |
279 | insert_1_both (print_buffer, print_buffer_pos, \ | |
280 | print_buffer_pos_byte, 0, 1, 0); \ | |
570fab6c | 281 | signal_after_change (PT - print_buffer_pos, 0, print_buffer_pos);\ |
8a2ab0c6 RS |
282 | } \ |
283 | if (free_print_buffer) \ | |
284 | { \ | |
285 | xfree (print_buffer); \ | |
286 | print_buffer = 0; \ | |
287 | } \ | |
288 | unbind_to (specpdl_count, Qnil); \ | |
289 | if (MARKERP (original)) \ | |
290 | set_marker_both (original, Qnil, PT, PT_BYTE); \ | |
291 | if (old_point >= 0) \ | |
292 | SET_PT_BOTH (old_point + (old_point >= start_point \ | |
293 | ? PT - start_point : 0), \ | |
6ddd6eee | 294 | old_point_byte + (old_point_byte >= start_point_byte \ |
cd3587c1 | 295 | ? PT_BYTE - start_point_byte : 0)); \ |
8a2ab0c6 | 296 | if (old != current_buffer) \ |
0f25ecc6 | 297 | set_buffer_internal (old); |
38010d50 JB |
298 | |
299 | #define PRINTCHAR(ch) printchar (ch, printcharfun) | |
300 | ||
08e8d297 RS |
301 | /* This is used to restore the saved contents of print_buffer |
302 | when there is a recursive call to print. */ | |
0788646c | 303 | |
08e8d297 RS |
304 | static Lisp_Object |
305 | print_unwind (saved_text) | |
306 | Lisp_Object saved_text; | |
307 | { | |
d5db4077 | 308 | bcopy (SDATA (saved_text), print_buffer, SCHARS (saved_text)); |
ee5263af | 309 | return Qnil; |
08e8d297 RS |
310 | } |
311 | ||
0788646c GM |
312 | |
313 | /* Print character CH using method FUN. FUN nil means print to | |
314 | print_buffer. FUN t means print to echo area or stdout if | |
315 | non-interactive. If FUN is neither nil nor t, call FUN with CH as | |
316 | argument. */ | |
38010d50 JB |
317 | |
318 | static void | |
319 | printchar (ch, fun) | |
087e3c46 | 320 | unsigned int ch; |
38010d50 JB |
321 | Lisp_Object fun; |
322 | { | |
38010d50 JB |
323 | #ifdef MAX_PRINT_CHARS |
324 | if (max_print) | |
325 | print_chars++; | |
326 | #endif /* MAX_PRINT_CHARS */ | |
38010d50 | 327 | |
0788646c GM |
328 | if (!NILP (fun) && !EQ (fun, Qt)) |
329 | call1 (fun, make_number (ch)); | |
330 | else | |
38010d50 | 331 | { |
19a86a03 KH |
332 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
333 | int len = CHAR_STRING (ch, str); | |
334 | ||
09eddb56 | 335 | QUIT; |
177c0ea7 | 336 | |
0788646c | 337 | if (NILP (fun)) |
9a4d01d8 | 338 | { |
0788646c GM |
339 | if (print_buffer_pos_byte + len >= print_buffer_size) |
340 | print_buffer = (char *) xrealloc (print_buffer, | |
341 | print_buffer_size *= 2); | |
342 | bcopy (str, print_buffer + print_buffer_pos_byte, len); | |
343 | print_buffer_pos += 1; | |
344 | print_buffer_pos_byte += len; | |
9a4d01d8 | 345 | } |
0788646c | 346 | else if (noninteractive) |
1134b854 | 347 | { |
0788646c GM |
348 | fwrite (str, 1, len, stdout); |
349 | noninteractive_need_newline = 1; | |
1134b854 | 350 | } |
0788646c | 351 | else |
d366d2e4 | 352 | { |
0788646c GM |
353 | int multibyte_p |
354 | = !NILP (current_buffer->enable_multibyte_characters); | |
177c0ea7 | 355 | |
eb7b678b | 356 | setup_echo_area_for_printing (multibyte_p); |
0788646c GM |
357 | insert_char (ch); |
358 | message_dolog (str, len, 0, multibyte_p); | |
d366d2e4 | 359 | } |
38010d50 | 360 | } |
38010d50 JB |
361 | } |
362 | ||
0788646c GM |
363 | |
364 | /* Output SIZE characters, SIZE_BYTE bytes from string PTR using | |
365 | method PRINTCHARFUN. If SIZE < 0, use the string length of PTR for | |
366 | both SIZE and SIZE_BYTE. PRINTCHARFUN nil means output to | |
367 | print_buffer. PRINTCHARFUN t means output to the echo area or to | |
368 | stdout if non-interactive. If neither nil nor t, call Lisp | |
369 | function PRINTCHARFUN for each character printed. MULTIBYTE | |
efb15f96 RS |
370 | non-zero means PTR contains multibyte characters. |
371 | ||
372 | In the case where PRINTCHARFUN is nil, it is safe for PTR to point | |
373 | to data in a Lisp string. Otherwise that is not safe. */ | |
0788646c | 374 | |
38010d50 | 375 | static void |
dc2a0b79 | 376 | strout (ptr, size, size_byte, printcharfun, multibyte) |
38010d50 | 377 | char *ptr; |
dc2a0b79 | 378 | int size, size_byte; |
38010d50 | 379 | Lisp_Object printcharfun; |
dc2a0b79 | 380 | int multibyte; |
38010d50 | 381 | { |
087e3c46 | 382 | if (size < 0) |
dc2a0b79 | 383 | size_byte = size = strlen (ptr); |
087e3c46 | 384 | |
0788646c | 385 | if (NILP (printcharfun)) |
38010d50 | 386 | { |
dc2a0b79 | 387 | if (print_buffer_pos_byte + size_byte > print_buffer_size) |
6fec5601 | 388 | { |
dc2a0b79 | 389 | print_buffer_size = print_buffer_size * 2 + size_byte; |
6fec5601 RS |
390 | print_buffer = (char *) xrealloc (print_buffer, |
391 | print_buffer_size); | |
392 | } | |
dc2a0b79 | 393 | bcopy (ptr, print_buffer + print_buffer_pos_byte, size_byte); |
6fec5601 | 394 | print_buffer_pos += size; |
dc2a0b79 | 395 | print_buffer_pos_byte += size_byte; |
6fec5601 | 396 | |
38010d50 JB |
397 | #ifdef MAX_PRINT_CHARS |
398 | if (max_print) | |
6fec5601 | 399 | print_chars += size; |
38010d50 | 400 | #endif /* MAX_PRINT_CHARS */ |
38010d50 | 401 | } |
7b0cb8a0 | 402 | else if (noninteractive && EQ (printcharfun, Qt)) |
38010d50 | 403 | { |
0788646c GM |
404 | fwrite (ptr, 1, size_byte, stdout); |
405 | noninteractive_need_newline = 1; | |
406 | } | |
407 | else if (EQ (printcharfun, Qt)) | |
408 | { | |
409 | /* Output to echo area. We're trying to avoid a little overhead | |
410 | here, that's the reason we don't call printchar to do the | |
411 | job. */ | |
412 | int i; | |
413 | int multibyte_p | |
414 | = !NILP (current_buffer->enable_multibyte_characters); | |
177c0ea7 | 415 | |
eb7b678b | 416 | setup_echo_area_for_printing (multibyte_p); |
0788646c | 417 | message_dolog (ptr, size_byte, 0, multibyte_p); |
177c0ea7 | 418 | |
0788646c | 419 | if (size == size_byte) |
38010d50 | 420 | { |
0788646c | 421 | for (i = 0; i < size; ++i) |
bcdbfd36 | 422 | insert_char ((unsigned char) *ptr++); |
38010d50 | 423 | } |
0788646c | 424 | else |
38010d50 | 425 | { |
0788646c GM |
426 | int len; |
427 | for (i = 0; i < size_byte; i += len) | |
aec2b95b | 428 | { |
0788646c GM |
429 | int ch = STRING_CHAR_AND_LENGTH (ptr + i, size_byte - i, len); |
430 | insert_char (ch); | |
aec2b95b | 431 | } |
38010d50 | 432 | } |
177c0ea7 | 433 | |
0788646c GM |
434 | #ifdef MAX_PRINT_CHARS |
435 | if (max_print) | |
436 | print_chars += size; | |
437 | #endif /* MAX_PRINT_CHARS */ | |
438 | } | |
439 | else | |
440 | { | |
441 | /* PRINTCHARFUN is a Lisp function. */ | |
442 | int i = 0; | |
38010d50 | 443 | |
0788646c | 444 | if (size == size_byte) |
4ad8bb20 | 445 | { |
0788646c | 446 | while (i < size_byte) |
4ad8bb20 | 447 | { |
0788646c GM |
448 | int ch = ptr[i++]; |
449 | PRINTCHAR (ch); | |
4ad8bb20 | 450 | } |
4ad8bb20 | 451 | } |
0788646c | 452 | else |
087e3c46 | 453 | { |
0788646c GM |
454 | while (i < size_byte) |
455 | { | |
456 | /* Here, we must convert each multi-byte form to the | |
457 | corresponding character code before handing it to | |
458 | PRINTCHAR. */ | |
459 | int len; | |
460 | int ch = STRING_CHAR_AND_LENGTH (ptr + i, size_byte - i, len); | |
461 | PRINTCHAR (ch); | |
462 | i += len; | |
463 | } | |
087e3c46 | 464 | } |
38010d50 | 465 | } |
38010d50 JB |
466 | } |
467 | ||
468 | /* Print the contents of a string STRING using PRINTCHARFUN. | |
ed2c35ef RS |
469 | It isn't safe to use strout in many cases, |
470 | because printing one char can relocate. */ | |
38010d50 | 471 | |
dc2a0b79 | 472 | static void |
38010d50 JB |
473 | print_string (string, printcharfun) |
474 | Lisp_Object string; | |
475 | Lisp_Object printcharfun; | |
476 | { | |
6fec5601 | 477 | if (EQ (printcharfun, Qt) || NILP (printcharfun)) |
375fcc09 KH |
478 | { |
479 | int chars; | |
480 | ||
8b4b4467 KH |
481 | if (print_escape_nonascii) |
482 | string = string_escape_byte8 (string); | |
483 | ||
375fcc09 | 484 | if (STRING_MULTIBYTE (string)) |
d5db4077 | 485 | chars = SCHARS (string); |
8b4b4467 KH |
486 | else if (! print_escape_nonascii |
487 | && (EQ (printcharfun, Qt) | |
488 | ? ! NILP (buffer_defaults.enable_multibyte_characters) | |
489 | : ! NILP (current_buffer->enable_multibyte_characters))) | |
a76ef35d KH |
490 | { |
491 | /* If unibyte string STRING contains 8-bit codes, we must | |
492 | convert STRING to a multibyte string containing the same | |
493 | character codes. */ | |
494 | Lisp_Object newstr; | |
495 | int bytes; | |
496 | ||
d5db4077 KR |
497 | chars = SBYTES (string); |
498 | bytes = parse_str_to_multibyte (SDATA (string), chars); | |
a76ef35d KH |
499 | if (chars < bytes) |
500 | { | |
501 | newstr = make_uninit_multibyte_string (chars, bytes); | |
d5db4077 KR |
502 | bcopy (SDATA (string), SDATA (newstr), chars); |
503 | str_to_multibyte (SDATA (newstr), bytes, chars); | |
a76ef35d KH |
504 | string = newstr; |
505 | } | |
506 | } | |
375fcc09 | 507 | else |
d5db4077 | 508 | chars = SBYTES (string); |
375fcc09 | 509 | |
efb15f96 RS |
510 | if (EQ (printcharfun, Qt)) |
511 | { | |
512 | /* Output to echo area. */ | |
513 | int nbytes = SBYTES (string); | |
514 | char *buffer; | |
515 | ||
516 | /* Copy the string contents so that relocation of STRING by | |
517 | GC does not cause trouble. */ | |
518 | USE_SAFE_ALLOCA; | |
519 | ||
520 | SAFE_ALLOCA (buffer, char *, nbytes); | |
521 | bcopy (SDATA (string), buffer, nbytes); | |
522 | ||
523 | strout (buffer, chars, SBYTES (string), | |
524 | printcharfun, STRING_MULTIBYTE (string)); | |
525 | ||
526 | SAFE_FREE (); | |
527 | } | |
528 | else | |
529 | /* No need to copy, since output to print_buffer can't GC. */ | |
530 | strout (SDATA (string), | |
531 | chars, SBYTES (string), | |
532 | printcharfun, STRING_MULTIBYTE (string)); | |
375fcc09 | 533 | } |
38010d50 JB |
534 | else |
535 | { | |
dc2a0b79 RS |
536 | /* Otherwise, string may be relocated by printing one char. |
537 | So re-fetch the string address for each character. */ | |
38010d50 | 538 | int i; |
d5db4077 KR |
539 | int size = SCHARS (string); |
540 | int size_byte = SBYTES (string); | |
38010d50 JB |
541 | struct gcpro gcpro1; |
542 | GCPRO1 (string); | |
dc2a0b79 RS |
543 | if (size == size_byte) |
544 | for (i = 0; i < size; i++) | |
d5db4077 | 545 | PRINTCHAR (SREF (string, i)); |
dc2a0b79 | 546 | else |
6b61353c | 547 | for (i = 0; i < size_byte; ) |
dc2a0b79 RS |
548 | { |
549 | /* Here, we must convert each multi-byte form to the | |
550 | corresponding character code before handing it to PRINTCHAR. */ | |
551 | int len; | |
d5db4077 | 552 | int ch = STRING_CHAR_AND_LENGTH (SDATA (string) + i, |
765fe1d0 | 553 | size_byte - i, len); |
dc2a0b79 RS |
554 | PRINTCHAR (ch); |
555 | i += len; | |
556 | } | |
38010d50 JB |
557 | UNGCPRO; |
558 | } | |
559 | } | |
560 | \f | |
561 | DEFUN ("write-char", Fwrite_char, Swrite_char, 1, 2, 0, | |
8c1a1077 PJ |
562 | doc: /* Output character CHARACTER to stream PRINTCHARFUN. |
563 | PRINTCHARFUN defaults to the value of `standard-output' (which see). */) | |
564 | (character, printcharfun) | |
3738a371 | 565 | Lisp_Object character, printcharfun; |
38010d50 | 566 | { |
081e0581 | 567 | PRINTDECLARE; |
38010d50 | 568 | |
10eebdbb | 569 | if (NILP (printcharfun)) |
38010d50 | 570 | printcharfun = Vstandard_output; |
b7826503 | 571 | CHECK_NUMBER (character); |
38010d50 | 572 | PRINTPREPARE; |
3738a371 | 573 | PRINTCHAR (XINT (character)); |
38010d50 | 574 | PRINTFINISH; |
3738a371 | 575 | return character; |
38010d50 JB |
576 | } |
577 | ||
dc2a0b79 RS |
578 | /* Used from outside of print.c to print a block of SIZE |
579 | single-byte chars at DATA on the default output stream. | |
38010d50 JB |
580 | Do not use this on the contents of a Lisp string. */ |
581 | ||
dc22f25e | 582 | void |
38010d50 JB |
583 | write_string (data, size) |
584 | char *data; | |
585 | int size; | |
586 | { | |
081e0581 | 587 | PRINTDECLARE; |
38010d50 | 588 | Lisp_Object printcharfun; |
38010d50 JB |
589 | |
590 | printcharfun = Vstandard_output; | |
591 | ||
592 | PRINTPREPARE; | |
dc2a0b79 | 593 | strout (data, size, size, printcharfun, 0); |
38010d50 JB |
594 | PRINTFINISH; |
595 | } | |
596 | ||
dc2a0b79 RS |
597 | /* Used from outside of print.c to print a block of SIZE |
598 | single-byte chars at DATA on a specified stream PRINTCHARFUN. | |
38010d50 JB |
599 | Do not use this on the contents of a Lisp string. */ |
600 | ||
dc22f25e | 601 | void |
38010d50 JB |
602 | write_string_1 (data, size, printcharfun) |
603 | char *data; | |
604 | int size; | |
605 | Lisp_Object printcharfun; | |
606 | { | |
081e0581 | 607 | PRINTDECLARE; |
38010d50 JB |
608 | |
609 | PRINTPREPARE; | |
dc2a0b79 | 610 | strout (data, size, size, printcharfun, 0); |
38010d50 JB |
611 | PRINTFINISH; |
612 | } | |
613 | ||
614 | ||
38010d50 JB |
615 | void |
616 | temp_output_buffer_setup (bufname) | |
3f7e390a | 617 | const char *bufname; |
38010d50 | 618 | { |
aed13378 | 619 | int count = SPECPDL_INDEX (); |
38010d50 JB |
620 | register struct buffer *old = current_buffer; |
621 | register Lisp_Object buf; | |
622 | ||
d9c21094 RS |
623 | record_unwind_protect (set_buffer_if_live, Fcurrent_buffer ()); |
624 | ||
38010d50 JB |
625 | Fset_buffer (Fget_buffer_create (build_string (bufname))); |
626 | ||
9756ea0f | 627 | Fkill_all_local_variables (); |
fd531951 | 628 | delete_all_overlays (current_buffer); |
2a1c968a | 629 | current_buffer->directory = old->directory; |
38010d50 | 630 | current_buffer->read_only = Qnil; |
c5c6d57c KH |
631 | current_buffer->filename = Qnil; |
632 | current_buffer->undo_list = Qt; | |
b3f6010e SM |
633 | eassert (current_buffer->overlays_before == NULL); |
634 | eassert (current_buffer->overlays_after == NULL); | |
c5c6d57c KH |
635 | current_buffer->enable_multibyte_characters |
636 | = buffer_defaults.enable_multibyte_characters; | |
d28eab19 KH |
637 | specbind (Qinhibit_read_only, Qt); |
638 | specbind (Qinhibit_modification_hooks, Qt); | |
38010d50 | 639 | Ferase_buffer (); |
633307b5 | 640 | XSETBUFFER (buf, current_buffer); |
38010d50 | 641 | |
98040cf1 | 642 | Frun_hooks (1, &Qtemp_buffer_setup_hook); |
d9c21094 RS |
643 | |
644 | unbind_to (count, Qnil); | |
645 | ||
646 | specbind (Qstandard_output, buf); | |
38010d50 JB |
647 | } |
648 | ||
649 | Lisp_Object | |
650 | internal_with_output_to_temp_buffer (bufname, function, args) | |
3f7e390a | 651 | const char *bufname; |
dfcf069d | 652 | Lisp_Object (*function) P_ ((Lisp_Object)); |
38010d50 JB |
653 | Lisp_Object args; |
654 | { | |
aed13378 | 655 | int count = SPECPDL_INDEX (); |
38010d50 | 656 | Lisp_Object buf, val; |
0ab39c81 | 657 | struct gcpro gcpro1; |
38010d50 | 658 | |
0ab39c81 | 659 | GCPRO1 (args); |
38010d50 JB |
660 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); |
661 | temp_output_buffer_setup (bufname); | |
662 | buf = Vstandard_output; | |
0ab39c81 | 663 | UNGCPRO; |
38010d50 JB |
664 | |
665 | val = (*function) (args); | |
666 | ||
0ab39c81 | 667 | GCPRO1 (val); |
38010d50 | 668 | temp_output_buffer_show (buf); |
0ab39c81 | 669 | UNGCPRO; |
38010d50 JB |
670 | |
671 | return unbind_to (count, val); | |
672 | } | |
673 | ||
ab9ffd19 MB |
674 | DEFUN ("with-output-to-temp-buffer", |
675 | Fwith_output_to_temp_buffer, Swith_output_to_temp_buffer, | |
38010d50 | 676 | 1, UNEVALLED, 0, |
8c1a1077 | 677 | doc: /* Bind `standard-output' to buffer BUFNAME, eval BODY, then show that buffer. |
80281b01 RS |
678 | |
679 | This construct makes buffer BUFNAME empty before running BODY. | |
680 | It does not make the buffer current for BODY. | |
681 | Instead it binds `standard-output' to that buffer, so that output | |
682 | generated with `prin1' and similar functions in BODY goes into | |
683 | the buffer. | |
684 | ||
685 | At the end of BODY, this marks buffer BUFNAME unmodifed and displays | |
686 | it in a window, but does not select it. The normal way to do this is | |
687 | by calling `display-buffer', then running `temp-buffer-show-hook'. | |
688 | However, if `temp-buffer-show-function' is non-nil, it calls that | |
689 | function instead (and does not run `temp-buffer-show-hook'). The | |
690 | function gets one argument, the buffer to display. | |
691 | ||
692 | The return value of `with-output-to-temp-buffer' is the value of the | |
693 | last form in BODY. If BODY does not finish normally, the buffer | |
694 | BUFNAME is not displayed. | |
695 | ||
696 | This runs the hook `temp-buffer-setup-hook' before BODY, | |
697 | with the buffer BUFNAME temporarily current. It runs the hook | |
698 | `temp-buffer-show-hook' after displaying buffer BUFNAME, with that | |
699 | buffer temporarily current, and the window that was used to display it | |
700 | temporarily selected. But it doesn't run `temp-buffer-show-hook' | |
701 | if it uses `temp-buffer-show-function'. | |
ab9ffd19 | 702 | |
f0005db5 | 703 | usage: (with-output-to-temp-buffer BUFNAME BODY...) */) |
8c1a1077 | 704 | (args) |
38010d50 JB |
705 | Lisp_Object args; |
706 | { | |
707 | struct gcpro gcpro1; | |
708 | Lisp_Object name; | |
aed13378 | 709 | int count = SPECPDL_INDEX (); |
38010d50 JB |
710 | Lisp_Object buf, val; |
711 | ||
712 | GCPRO1(args); | |
713 | name = Feval (Fcar (args)); | |
b7826503 | 714 | CHECK_STRING (name); |
d5db4077 | 715 | temp_output_buffer_setup (SDATA (name)); |
38010d50 | 716 | buf = Vstandard_output; |
8bbfc258 | 717 | UNGCPRO; |
38010d50 | 718 | |
8bbfc258 | 719 | val = Fprogn (XCDR (args)); |
38010d50 | 720 | |
8bbfc258 | 721 | GCPRO1 (val); |
38010d50 | 722 | temp_output_buffer_show (buf); |
8bbfc258 | 723 | UNGCPRO; |
38010d50 JB |
724 | |
725 | return unbind_to (count, val); | |
726 | } | |
0788646c | 727 | |
38010d50 JB |
728 | \f |
729 | static void print (); | |
0f25ecc6 | 730 | static void print_preprocess (); |
0f25ecc6 | 731 | static void print_preprocess_string (); |
0f25ecc6 | 732 | static void print_object (); |
38010d50 JB |
733 | |
734 | DEFUN ("terpri", Fterpri, Sterpri, 0, 1, 0, | |
8c1a1077 PJ |
735 | doc: /* Output a newline to stream PRINTCHARFUN. |
736 | If PRINTCHARFUN is omitted or nil, the value of `standard-output' is used. */) | |
38010d50 JB |
737 | (printcharfun) |
738 | Lisp_Object printcharfun; | |
739 | { | |
081e0581 | 740 | PRINTDECLARE; |
38010d50 | 741 | |
10eebdbb | 742 | if (NILP (printcharfun)) |
38010d50 JB |
743 | printcharfun = Vstandard_output; |
744 | PRINTPREPARE; | |
745 | PRINTCHAR ('\n'); | |
746 | PRINTFINISH; | |
747 | return Qt; | |
748 | } | |
749 | ||
750 | DEFUN ("prin1", Fprin1, Sprin1, 1, 2, 0, | |
8c1a1077 PJ |
751 | doc: /* Output the printed representation of OBJECT, any Lisp object. |
752 | Quoting characters are printed when needed to make output that `read' | |
9474c847 | 753 | can handle, whenever this is possible. For complex objects, the behavior |
7fab9223 | 754 | is controlled by `print-level' and `print-length', which see. |
8c1a1077 PJ |
755 | |
756 | OBJECT is any of the Lisp data types: a number, a string, a symbol, | |
757 | a list, a buffer, a window, a frame, etc. | |
758 | ||
759 | A printed representation of an object is text which describes that object. | |
760 | ||
761 | Optional argument PRINTCHARFUN is the output stream, which can be one | |
762 | of these: | |
763 | ||
764 | - a buffer, in which case output is inserted into that buffer at point; | |
765 | - a marker, in which case output is inserted at marker's position; | |
766 | - a function, in which case that function is called once for each | |
767 | character of OBJECT's printed representation; | |
768 | - a symbol, in which case that symbol's function definition is called; or | |
769 | - t, in which case the output is displayed in the echo area. | |
770 | ||
771 | If PRINTCHARFUN is omitted, the value of `standard-output' (which see) | |
772 | is used instead. */) | |
773 | (object, printcharfun) | |
3738a371 | 774 | Lisp_Object object, printcharfun; |
38010d50 | 775 | { |
081e0581 | 776 | PRINTDECLARE; |
38010d50 JB |
777 | |
778 | #ifdef MAX_PRINT_CHARS | |
779 | max_print = 0; | |
780 | #endif /* MAX_PRINT_CHARS */ | |
10eebdbb | 781 | if (NILP (printcharfun)) |
38010d50 JB |
782 | printcharfun = Vstandard_output; |
783 | PRINTPREPARE; | |
3738a371 | 784 | print (object, printcharfun, 1); |
38010d50 | 785 | PRINTFINISH; |
3738a371 | 786 | return object; |
38010d50 JB |
787 | } |
788 | ||
789 | /* a buffer which is used to hold output being built by prin1-to-string */ | |
790 | Lisp_Object Vprin1_to_string_buffer; | |
791 | ||
792 | DEFUN ("prin1-to-string", Fprin1_to_string, Sprin1_to_string, 1, 2, 0, | |
fd4d156b RS |
793 | doc: /* Return a string containing the printed representation of OBJECT. |
794 | OBJECT can be any Lisp object. This function outputs quoting characters | |
cf393f9b | 795 | when necessary to make output that `read' can handle, whenever possible, |
a2612656 EZ |
796 | unless the optional second argument NOESCAPE is non-nil. For complex objects, |
797 | the behavior is controlled by `print-level' and `print-length', which see. | |
8c1a1077 PJ |
798 | |
799 | OBJECT is any of the Lisp data types: a number, a string, a symbol, | |
800 | a list, a buffer, a window, a frame, etc. | |
801 | ||
802 | A printed representation of an object is text which describes that object. */) | |
803 | (object, noescape) | |
3738a371 | 804 | Lisp_Object object, noescape; |
38010d50 | 805 | { |
081e0581 | 806 | Lisp_Object printcharfun; |
ca2de342 RS |
807 | /* struct gcpro gcpro1, gcpro2; */ |
808 | Lisp_Object save_deactivate_mark; | |
1a7de17e | 809 | int count = SPECPDL_INDEX (); |
6b61353c | 810 | struct buffer *previous; |
ca2de342 RS |
811 | |
812 | specbind (Qinhibit_modification_hooks, Qt); | |
2a42e8f6 | 813 | |
6b61353c KH |
814 | { |
815 | PRINTDECLARE; | |
816 | ||
817 | /* Save and restore this--we are altering a buffer | |
818 | but we don't want to deactivate the mark just for that. | |
819 | No need for specbind, since errors deactivate the mark. */ | |
820 | save_deactivate_mark = Vdeactivate_mark; | |
821 | /* GCPRO2 (object, save_deactivate_mark); */ | |
822 | abort_on_gc++; | |
823 | ||
824 | printcharfun = Vprin1_to_string_buffer; | |
825 | PRINTPREPARE; | |
826 | print (object, printcharfun, NILP (noescape)); | |
827 | /* Make Vprin1_to_string_buffer be the default buffer after PRINTFINSH */ | |
828 | PRINTFINISH; | |
829 | } | |
38010d50 | 830 | |
6b61353c | 831 | previous = current_buffer; |
38010d50 | 832 | set_buffer_internal (XBUFFER (Vprin1_to_string_buffer)); |
3738a371 | 833 | object = Fbuffer_string (); |
b51ee131 SM |
834 | if (SBYTES (object) == SCHARS (object)) |
835 | STRING_SET_UNIBYTE (object); | |
38010d50 | 836 | |
28b8f740 | 837 | /* Note that this won't make prepare_to_modify_buffer call |
6b61353c KH |
838 | ask-user-about-supersession-threat because this buffer |
839 | does not visit a file. */ | |
38010d50 | 840 | Ferase_buffer (); |
6b61353c | 841 | set_buffer_internal (previous); |
2a42e8f6 | 842 | |
ca2de342 RS |
843 | Vdeactivate_mark = save_deactivate_mark; |
844 | /* UNGCPRO; */ | |
38010d50 | 845 | |
ca2de342 RS |
846 | abort_on_gc--; |
847 | return unbind_to (count, object); | |
38010d50 JB |
848 | } |
849 | ||
850 | DEFUN ("princ", Fprinc, Sprinc, 1, 2, 0, | |
8c1a1077 PJ |
851 | doc: /* Output the printed representation of OBJECT, any Lisp object. |
852 | No quoting characters are used; no delimiters are printed around | |
853 | the contents of strings. | |
854 | ||
855 | OBJECT is any of the Lisp data types: a number, a string, a symbol, | |
856 | a list, a buffer, a window, a frame, etc. | |
857 | ||
858 | A printed representation of an object is text which describes that object. | |
859 | ||
860 | Optional argument PRINTCHARFUN is the output stream, which can be one | |
861 | of these: | |
862 | ||
863 | - a buffer, in which case output is inserted into that buffer at point; | |
864 | - a marker, in which case output is inserted at marker's position; | |
865 | - a function, in which case that function is called once for each | |
866 | character of OBJECT's printed representation; | |
867 | - a symbol, in which case that symbol's function definition is called; or | |
868 | - t, in which case the output is displayed in the echo area. | |
869 | ||
870 | If PRINTCHARFUN is omitted, the value of `standard-output' (which see) | |
871 | is used instead. */) | |
872 | (object, printcharfun) | |
3738a371 | 873 | Lisp_Object object, printcharfun; |
38010d50 | 874 | { |
081e0581 | 875 | PRINTDECLARE; |
38010d50 | 876 | |
10eebdbb | 877 | if (NILP (printcharfun)) |
38010d50 JB |
878 | printcharfun = Vstandard_output; |
879 | PRINTPREPARE; | |
3738a371 | 880 | print (object, printcharfun, 0); |
38010d50 | 881 | PRINTFINISH; |
3738a371 | 882 | return object; |
38010d50 JB |
883 | } |
884 | ||
885 | DEFUN ("print", Fprint, Sprint, 1, 2, 0, | |
8c1a1077 PJ |
886 | doc: /* Output the printed representation of OBJECT, with newlines around it. |
887 | Quoting characters are printed when needed to make output that `read' | |
9474c847 | 888 | can handle, whenever this is possible. For complex objects, the behavior |
7fab9223 | 889 | is controlled by `print-level' and `print-length', which see. |
8c1a1077 PJ |
890 | |
891 | OBJECT is any of the Lisp data types: a number, a string, a symbol, | |
892 | a list, a buffer, a window, a frame, etc. | |
893 | ||
894 | A printed representation of an object is text which describes that object. | |
895 | ||
896 | Optional argument PRINTCHARFUN is the output stream, which can be one | |
897 | of these: | |
898 | ||
899 | - a buffer, in which case output is inserted into that buffer at point; | |
900 | - a marker, in which case output is inserted at marker's position; | |
901 | - a function, in which case that function is called once for each | |
902 | character of OBJECT's printed representation; | |
903 | - a symbol, in which case that symbol's function definition is called; or | |
904 | - t, in which case the output is displayed in the echo area. | |
905 | ||
906 | If PRINTCHARFUN is omitted, the value of `standard-output' (which see) | |
907 | is used instead. */) | |
908 | (object, printcharfun) | |
3738a371 | 909 | Lisp_Object object, printcharfun; |
38010d50 | 910 | { |
081e0581 | 911 | PRINTDECLARE; |
38010d50 JB |
912 | struct gcpro gcpro1; |
913 | ||
914 | #ifdef MAX_PRINT_CHARS | |
915 | print_chars = 0; | |
916 | max_print = MAX_PRINT_CHARS; | |
917 | #endif /* MAX_PRINT_CHARS */ | |
10eebdbb | 918 | if (NILP (printcharfun)) |
38010d50 | 919 | printcharfun = Vstandard_output; |
3738a371 | 920 | GCPRO1 (object); |
38010d50 | 921 | PRINTPREPARE; |
38010d50 | 922 | PRINTCHAR ('\n'); |
3738a371 | 923 | print (object, printcharfun, 1); |
38010d50 JB |
924 | PRINTCHAR ('\n'); |
925 | PRINTFINISH; | |
926 | #ifdef MAX_PRINT_CHARS | |
927 | max_print = 0; | |
928 | print_chars = 0; | |
929 | #endif /* MAX_PRINT_CHARS */ | |
930 | UNGCPRO; | |
3738a371 | 931 | return object; |
38010d50 JB |
932 | } |
933 | ||
934 | /* The subroutine object for external-debugging-output is kept here | |
935 | for the convenience of the debugger. */ | |
936 | Lisp_Object Qexternal_debugging_output; | |
937 | ||
4746118a | 938 | DEFUN ("external-debugging-output", Fexternal_debugging_output, Sexternal_debugging_output, 1, 1, 0, |
8c1a1077 PJ |
939 | doc: /* Write CHARACTER to stderr. |
940 | You can call print while debugging emacs, and pass it this function | |
941 | to make it write to the debugging output. */) | |
942 | (character) | |
4746118a | 943 | Lisp_Object character; |
38010d50 | 944 | { |
b7826503 | 945 | CHECK_NUMBER (character); |
38010d50 | 946 | putc (XINT (character), stderr); |
cd22039d RS |
947 | |
948 | #ifdef WINDOWSNT | |
949 | /* Send the output to a debugger (nothing happens if there isn't one). */ | |
945b0111 EZ |
950 | if (print_output_debug_flag) |
951 | { | |
952 | char buf[2] = {(char) XINT (character), '\0'}; | |
953 | OutputDebugString (buf); | |
954 | } | |
cd22039d RS |
955 | #endif |
956 | ||
38010d50 JB |
957 | return character; |
958 | } | |
cf1bb91b | 959 | |
c33f8948 RS |
960 | /* This function is never called. Its purpose is to prevent |
961 | print_output_debug_flag from being optimized away. */ | |
962 | ||
dae581bf | 963 | void |
c33f8948 RS |
964 | debug_output_compilation_hack (x) |
965 | int x; | |
966 | { | |
967 | print_output_debug_flag = x; | |
968 | } | |
6b61353c | 969 | |
cd3587c1 | 970 | #if defined (GNU_LINUX) |
6b61353c KH |
971 | |
972 | /* This functionality is not vitally important in general, so we rely on | |
973 | non-portable ability to use stderr as lvalue. */ | |
974 | ||
975 | #define WITH_REDIRECT_DEBUGGING_OUTPUT 1 | |
976 | ||
977 | FILE *initial_stderr_stream = NULL; | |
978 | ||
979 | DEFUN ("redirect-debugging-output", Fredirect_debugging_output, Sredirect_debugging_output, | |
980 | 1, 2, | |
981 | "FDebug output file: \nP", | |
982 | doc: /* Redirect debugging output (stderr stream) to file FILE. | |
983 | If FILE is nil, reset target to the initial stderr stream. | |
984 | Optional arg APPEND non-nil (interactively, with prefix arg) means | |
28b8f740 | 985 | append to existing target file. */) |
6b61353c KH |
986 | (file, append) |
987 | Lisp_Object file, append; | |
988 | { | |
989 | if (initial_stderr_stream != NULL) | |
f9467be3 YM |
990 | { |
991 | BLOCK_INPUT; | |
992 | fclose (stderr); | |
993 | UNBLOCK_INPUT; | |
994 | } | |
6b61353c KH |
995 | stderr = initial_stderr_stream; |
996 | initial_stderr_stream = NULL; | |
997 | ||
998 | if (STRINGP (file)) | |
999 | { | |
1000 | file = Fexpand_file_name (file, Qnil); | |
1001 | initial_stderr_stream = stderr; | |
cd3587c1 | 1002 | stderr = fopen (SDATA (file), NILP (append) ? "w" : "a"); |
6b61353c KH |
1003 | if (stderr == NULL) |
1004 | { | |
1005 | stderr = initial_stderr_stream; | |
1006 | initial_stderr_stream = NULL; | |
1007 | report_file_error ("Cannot open debugging output stream", | |
1008 | Fcons (file, Qnil)); | |
1009 | } | |
1010 | } | |
1011 | return Qnil; | |
1012 | } | |
1013 | #endif /* GNU_LINUX */ | |
1014 | ||
1015 | ||
cf1bb91b RS |
1016 | /* This is the interface for debugging printing. */ |
1017 | ||
1018 | void | |
1019 | debug_print (arg) | |
1020 | Lisp_Object arg; | |
1021 | { | |
1022 | Fprin1 (arg, Qexternal_debugging_output); | |
3684eb78 | 1023 | fprintf (stderr, "\r\n"); |
cf1bb91b | 1024 | } |
bd90dcd0 KS |
1025 | |
1026 | void | |
1027 | safe_debug_print (arg) | |
1028 | Lisp_Object arg; | |
1029 | { | |
1030 | int valid = valid_lisp_object_p (arg); | |
1031 | ||
1032 | if (valid > 0) | |
1033 | debug_print (arg); | |
1034 | else | |
1035 | fprintf (stderr, "#<%s_LISP_OBJECT 0x%08lx>\r\n", | |
1036 | !valid ? "INVALID" : "SOME", | |
4c37a414 | 1037 | (unsigned long) XHASH (arg) |
bd90dcd0 KS |
1038 | ); |
1039 | } | |
1040 | ||
38010d50 | 1041 | \f |
113620cc KH |
1042 | DEFUN ("error-message-string", Ferror_message_string, Serror_message_string, |
1043 | 1, 1, 0, | |
6b61353c KH |
1044 | doc: /* Convert an error value (ERROR-SYMBOL . DATA) to an error message. |
1045 | See Info anchor `(elisp)Definition of signal' for some details on how this | |
1046 | error message is constructed. */) | |
8c1a1077 | 1047 | (obj) |
113620cc KH |
1048 | Lisp_Object obj; |
1049 | { | |
1050 | struct buffer *old = current_buffer; | |
63fbf4ff | 1051 | Lisp_Object value; |
113620cc KH |
1052 | struct gcpro gcpro1; |
1053 | ||
0872e11f RS |
1054 | /* If OBJ is (error STRING), just return STRING. |
1055 | That is not only faster, it also avoids the need to allocate | |
1056 | space here when the error is due to memory full. */ | |
94b342ce KR |
1057 | if (CONSP (obj) && EQ (XCAR (obj), Qerror) |
1058 | && CONSP (XCDR (obj)) | |
1059 | && STRINGP (XCAR (XCDR (obj))) | |
1060 | && NILP (XCDR (XCDR (obj)))) | |
1061 | return XCAR (XCDR (obj)); | |
0872e11f | 1062 | |
240e806c | 1063 | print_error_message (obj, Vprin1_to_string_buffer, 0, Qnil); |
113620cc KH |
1064 | |
1065 | set_buffer_internal (XBUFFER (Vprin1_to_string_buffer)); | |
1066 | value = Fbuffer_string (); | |
1067 | ||
1068 | GCPRO1 (value); | |
1069 | Ferase_buffer (); | |
1070 | set_buffer_internal (old); | |
1071 | UNGCPRO; | |
1072 | ||
1073 | return value; | |
1074 | } | |
1075 | ||
c02279de | 1076 | /* Print an error message for the error DATA onto Lisp output stream |
7ab56fea RS |
1077 | STREAM (suitable for the print functions). |
1078 | CONTEXT is a C string describing the context of the error. | |
1079 | CALLER is the Lisp function inside which the error was signaled. */ | |
113620cc | 1080 | |
dc22f25e | 1081 | void |
240e806c | 1082 | print_error_message (data, stream, context, caller) |
113620cc | 1083 | Lisp_Object data, stream; |
240e806c RS |
1084 | char *context; |
1085 | Lisp_Object caller; | |
113620cc KH |
1086 | { |
1087 | Lisp_Object errname, errmsg, file_error, tail; | |
1088 | struct gcpro gcpro1; | |
1089 | int i; | |
1090 | ||
240e806c RS |
1091 | if (context != 0) |
1092 | write_string_1 (context, -1, stream); | |
1093 | ||
1094 | /* If we know from where the error was signaled, show it in | |
1095 | *Messages*. */ | |
1096 | if (!NILP (caller) && SYMBOLP (caller)) | |
1097 | { | |
11fb15d5 KS |
1098 | Lisp_Object cname = SYMBOL_NAME (caller); |
1099 | char *name = alloca (SBYTES (cname)); | |
1100 | bcopy (SDATA (cname), name, SBYTES (cname)); | |
826256dd | 1101 | message_dolog (name, SBYTES (cname), 0, 0); |
240e806c RS |
1102 | message_dolog (": ", 2, 0, 0); |
1103 | } | |
1104 | ||
113620cc KH |
1105 | errname = Fcar (data); |
1106 | ||
1107 | if (EQ (errname, Qerror)) | |
1108 | { | |
1109 | data = Fcdr (data); | |
c02279de GM |
1110 | if (!CONSP (data)) |
1111 | data = Qnil; | |
113620cc KH |
1112 | errmsg = Fcar (data); |
1113 | file_error = Qnil; | |
1114 | } | |
1115 | else | |
1116 | { | |
c02279de | 1117 | Lisp_Object error_conditions; |
113620cc | 1118 | errmsg = Fget (errname, Qerror_message); |
c02279de GM |
1119 | error_conditions = Fget (errname, Qerror_conditions); |
1120 | file_error = Fmemq (Qfile_error, error_conditions); | |
113620cc KH |
1121 | } |
1122 | ||
1123 | /* Print an error message including the data items. */ | |
1124 | ||
1125 | tail = Fcdr_safe (data); | |
1126 | GCPRO1 (tail); | |
1127 | ||
1128 | /* For file-error, make error message by concatenating | |
1129 | all the data items. They are all strings. */ | |
8c29413d | 1130 | if (!NILP (file_error) && CONSP (tail)) |
94b342ce | 1131 | errmsg = XCAR (tail), tail = XCDR (tail); |
113620cc KH |
1132 | |
1133 | if (STRINGP (errmsg)) | |
1134 | Fprinc (errmsg, stream); | |
1135 | else | |
1136 | write_string_1 ("peculiar error", -1, stream); | |
1137 | ||
c02279de | 1138 | for (i = 0; CONSP (tail); tail = XCDR (tail), i++) |
113620cc | 1139 | { |
c02279de GM |
1140 | Lisp_Object obj; |
1141 | ||
113620cc | 1142 | write_string_1 (i ? ", " : ": ", 2, stream); |
c02279de GM |
1143 | obj = XCAR (tail); |
1144 | if (!NILP (file_error) || EQ (errname, Qend_of_file)) | |
1145 | Fprinc (obj, stream); | |
113620cc | 1146 | else |
c02279de | 1147 | Fprin1 (obj, stream); |
113620cc | 1148 | } |
177c0ea7 | 1149 | |
113620cc KH |
1150 | UNGCPRO; |
1151 | } | |
38010d50 | 1152 | |
c02279de GM |
1153 | |
1154 | \f | |
38010d50 | 1155 | /* |
edb2a707 | 1156 | * The buffer should be at least as large as the max string size of the |
8e6208c5 | 1157 | * largest float, printed in the biggest notation. This is undoubtedly |
38010d50 JB |
1158 | * 20d float_output_format, with the negative of the C-constant "HUGE" |
1159 | * from <math.h>. | |
177c0ea7 | 1160 | * |
38010d50 | 1161 | * On the vax the worst case is -1e38 in 20d format which takes 61 bytes. |
177c0ea7 | 1162 | * |
38010d50 JB |
1163 | * I assume that IEEE-754 format numbers can take 329 bytes for the worst |
1164 | * case of -1e307 in 20d float_output_format. What is one to do (short of | |
1165 | * re-writing _doprnt to be more sane)? | |
1166 | * -wsr | |
1167 | */ | |
edb2a707 RS |
1168 | |
1169 | void | |
1170 | float_to_string (buf, data) | |
8b24d146 | 1171 | unsigned char *buf; |
38010d50 JB |
1172 | double data; |
1173 | { | |
c7b14277 | 1174 | unsigned char *cp; |
322890c4 | 1175 | int width; |
177c0ea7 | 1176 | |
7f45de2d RS |
1177 | /* Check for plus infinity in a way that won't lose |
1178 | if there is no plus infinity. */ | |
1179 | if (data == data / 2 && data > 1.0) | |
1180 | { | |
1181 | strcpy (buf, "1.0e+INF"); | |
1182 | return; | |
1183 | } | |
1184 | /* Likewise for minus infinity. */ | |
1185 | if (data == data / 2 && data < -1.0) | |
1186 | { | |
1187 | strcpy (buf, "-1.0e+INF"); | |
1188 | return; | |
1189 | } | |
1190 | /* Check for NaN in a way that won't fail if there are no NaNs. */ | |
1191 | if (! (data * 0.0 >= 0.0)) | |
1192 | { | |
68c45bf0 PE |
1193 | /* Prepend "-" if the NaN's sign bit is negative. |
1194 | The sign bit of a double is the bit that is 1 in -0.0. */ | |
1195 | int i; | |
1196 | union { double d; char c[sizeof (double)]; } u_data, u_minus_zero; | |
1197 | u_data.d = data; | |
1198 | u_minus_zero.d = - 0.0; | |
1199 | for (i = 0; i < sizeof (double); i++) | |
1200 | if (u_data.c[i] & u_minus_zero.c[i]) | |
1201 | { | |
1202 | *buf++ = '-'; | |
1203 | break; | |
1204 | } | |
177c0ea7 | 1205 | |
7f45de2d RS |
1206 | strcpy (buf, "0.0e+NaN"); |
1207 | return; | |
1208 | } | |
1209 | ||
10eebdbb | 1210 | if (NILP (Vfloat_output_format) |
d4ae1f7e | 1211 | || !STRINGP (Vfloat_output_format)) |
38010d50 | 1212 | lose: |
322890c4 | 1213 | { |
f356c3fb PE |
1214 | /* Generate the fewest number of digits that represent the |
1215 | floating point value without losing information. | |
1216 | The following method is simple but a bit slow. | |
1217 | For ideas about speeding things up, please see: | |
1218 | ||
1219 | Guy L Steele Jr & Jon L White, How to print floating-point numbers | |
1220 | accurately. SIGPLAN notices 25, 6 (June 1990), 112-126. | |
1221 | ||
1222 | Robert G Burger & R Kent Dybvig, Printing floating point numbers | |
1223 | quickly and accurately, SIGPLAN notices 31, 5 (May 1996), 108-116. */ | |
1224 | ||
1225 | width = fabs (data) < DBL_MIN ? 1 : DBL_DIG; | |
1226 | do | |
1227 | sprintf (buf, "%.*g", width, data); | |
1228 | while (width++ < DOUBLE_DIGITS_BOUND && atof (buf) != data); | |
322890c4 | 1229 | } |
38010d50 JB |
1230 | else /* oink oink */ |
1231 | { | |
1232 | /* Check that the spec we have is fully valid. | |
1233 | This means not only valid for printf, | |
1234 | but meant for floats, and reasonable. */ | |
d5db4077 | 1235 | cp = SDATA (Vfloat_output_format); |
38010d50 JB |
1236 | |
1237 | if (cp[0] != '%') | |
1238 | goto lose; | |
1239 | if (cp[1] != '.') | |
1240 | goto lose; | |
1241 | ||
1242 | cp += 2; | |
c7b14277 JB |
1243 | |
1244 | /* Check the width specification. */ | |
322890c4 | 1245 | width = -1; |
c7b14277 | 1246 | if ('0' <= *cp && *cp <= '9') |
381cd4bb KH |
1247 | { |
1248 | width = 0; | |
1249 | do | |
1250 | width = (width * 10) + (*cp++ - '0'); | |
1251 | while (*cp >= '0' && *cp <= '9'); | |
1252 | ||
1253 | /* A precision of zero is valid only for %f. */ | |
1254 | if (width > DBL_DIG | |
1255 | || (width == 0 && *cp != 'f')) | |
1256 | goto lose; | |
1257 | } | |
38010d50 JB |
1258 | |
1259 | if (*cp != 'e' && *cp != 'f' && *cp != 'g') | |
1260 | goto lose; | |
1261 | ||
38010d50 JB |
1262 | if (cp[1] != 0) |
1263 | goto lose; | |
1264 | ||
d5db4077 | 1265 | sprintf (buf, SDATA (Vfloat_output_format), data); |
38010d50 | 1266 | } |
edb2a707 | 1267 | |
c7b14277 JB |
1268 | /* Make sure there is a decimal point with digit after, or an |
1269 | exponent, so that the value is readable as a float. But don't do | |
322890c4 RS |
1270 | this with "%.0f"; it's valid for that not to produce a decimal |
1271 | point. Note that width can be 0 only for %.0f. */ | |
1272 | if (width != 0) | |
0601fd3d | 1273 | { |
c7b14277 JB |
1274 | for (cp = buf; *cp; cp++) |
1275 | if ((*cp < '0' || *cp > '9') && *cp != '-') | |
1276 | break; | |
0601fd3d | 1277 | |
c7b14277 JB |
1278 | if (*cp == '.' && cp[1] == 0) |
1279 | { | |
1280 | cp[1] = '0'; | |
1281 | cp[2] = 0; | |
1282 | } | |
1283 | ||
1284 | if (*cp == 0) | |
1285 | { | |
1286 | *cp++ = '.'; | |
1287 | *cp++ = '0'; | |
1288 | *cp++ = 0; | |
1289 | } | |
edb2a707 | 1290 | } |
38010d50 | 1291 | } |
cc94f3b2 | 1292 | |
38010d50 JB |
1293 | \f |
1294 | static void | |
1295 | print (obj, printcharfun, escapeflag) | |
38010d50 | 1296 | Lisp_Object obj; |
38010d50 JB |
1297 | register Lisp_Object printcharfun; |
1298 | int escapeflag; | |
1299 | { | |
a22dec27 | 1300 | new_backquote_output = 0; |
38010d50 | 1301 | |
0f25ecc6 RS |
1302 | /* Reset print_number_index and Vprint_number_table only when |
1303 | the variable Vprint_continuous_numbering is nil. Otherwise, | |
1304 | the values of these variables will be kept between several | |
1305 | print functions. */ | |
e026eb89 KS |
1306 | if (NILP (Vprint_continuous_numbering) |
1307 | || NILP (Vprint_number_table)) | |
0f25ecc6 RS |
1308 | { |
1309 | print_number_index = 0; | |
1310 | Vprint_number_table = Qnil; | |
1311 | } | |
38010d50 | 1312 | |
0f25ecc6 RS |
1313 | /* Construct Vprint_number_table for print-gensym and print-circle. */ |
1314 | if (!NILP (Vprint_gensym) || !NILP (Vprint_circle)) | |
ec838c39 | 1315 | { |
73fb36f1 | 1316 | int i, start, index; |
73fb36f1 | 1317 | start = index = print_number_index; |
e6d4cddd RS |
1318 | /* Construct Vprint_number_table. |
1319 | This increments print_number_index for the objects added. */ | |
9a6a4c40 | 1320 | print_depth = 0; |
0f25ecc6 | 1321 | print_preprocess (obj); |
e6d4cddd | 1322 | |
0f25ecc6 | 1323 | /* Remove unnecessary objects, which appear only once in OBJ; |
e6d4cddd | 1324 | that is, whose status is Qnil. Compactify the necessary objects. */ |
73fb36f1 | 1325 | for (i = start; i < print_number_index; i++) |
0f25ecc6 RS |
1326 | if (!NILP (PRINT_NUMBER_STATUS (Vprint_number_table, i))) |
1327 | { | |
1328 | PRINT_NUMBER_OBJECT (Vprint_number_table, index) | |
1329 | = PRINT_NUMBER_OBJECT (Vprint_number_table, i); | |
0f25ecc6 RS |
1330 | index++; |
1331 | } | |
e6d4cddd RS |
1332 | |
1333 | /* Clear out objects outside the active part of the table. */ | |
1334 | for (i = index; i < print_number_index; i++) | |
1335 | PRINT_NUMBER_OBJECT (Vprint_number_table, i) = Qnil; | |
1336 | ||
1337 | /* Reset the status field for the next print step. Now this | |
1338 | field means whether the object has already been printed. */ | |
1339 | for (i = start; i < print_number_index; i++) | |
1340 | PRINT_NUMBER_STATUS (Vprint_number_table, i) = Qnil; | |
1341 | ||
0f25ecc6 RS |
1342 | print_number_index = index; |
1343 | } | |
1344 | ||
9a6a4c40 | 1345 | print_depth = 0; |
0f25ecc6 RS |
1346 | print_object (obj, printcharfun, escapeflag); |
1347 | } | |
1348 | ||
1349 | /* Construct Vprint_number_table according to the structure of OBJ. | |
1350 | OBJ itself and all its elements will be added to Vprint_number_table | |
1351 | recursively if it is a list, vector, compiled function, char-table, | |
1352 | string (its text properties will be traced), or a symbol that has | |
1353 | no obarray (this is for the print-gensym feature). | |
1354 | The status fields of Vprint_number_table mean whether each object appears | |
1355 | more than once in OBJ: Qnil at the first time, and Qt after that . */ | |
1356 | static void | |
1357 | print_preprocess (obj) | |
1358 | Lisp_Object obj; | |
1359 | { | |
6b61353c KH |
1360 | int i; |
1361 | EMACS_INT size; | |
c1132671 RS |
1362 | int loop_count = 0; |
1363 | Lisp_Object halftail; | |
1364 | ||
15479e8b RS |
1365 | /* Give up if we go so deep that print_object will get an error. */ |
1366 | /* See similar code in print_object. */ | |
1367 | if (print_depth >= PRINT_CIRCLE) | |
6b8dfbf7 | 1368 | error ("Apparently circular structure being printed"); |
15479e8b | 1369 | |
c1132671 RS |
1370 | /* Avoid infinite recursion for circular nested structure |
1371 | in the case where Vprint_circle is nil. */ | |
1372 | if (NILP (Vprint_circle)) | |
1373 | { | |
1374 | for (i = 0; i < print_depth; i++) | |
1375 | if (EQ (obj, being_printed[i])) | |
1376 | return; | |
1377 | being_printed[print_depth] = obj; | |
1378 | } | |
1379 | ||
c1132671 RS |
1380 | print_depth++; |
1381 | halftail = obj; | |
0f25ecc6 RS |
1382 | |
1383 | loop: | |
1384 | if (STRINGP (obj) || CONSP (obj) || VECTORP (obj) | |
6d77fa95 | 1385 | || COMPILEDP (obj) || CHAR_TABLE_P (obj) || SUB_CHAR_TABLE_P (obj) |
0f25ecc6 | 1386 | || (! NILP (Vprint_gensym) |
bf9f2aab GM |
1387 | && SYMBOLP (obj) |
1388 | && !SYMBOL_INTERNED_P (obj))) | |
0f25ecc6 | 1389 | { |
aca2020b KH |
1390 | /* In case print-circle is nil and print-gensym is t, |
1391 | add OBJ to Vprint_number_table only when OBJ is a symbol. */ | |
1392 | if (! NILP (Vprint_circle) || SYMBOLP (obj)) | |
0f25ecc6 | 1393 | { |
0f25ecc6 | 1394 | for (i = 0; i < print_number_index; i++) |
7c752c80 | 1395 | if (EQ (PRINT_NUMBER_OBJECT (Vprint_number_table, i), obj)) |
aca2020b | 1396 | { |
f35ca2fe | 1397 | /* OBJ appears more than once. Let's remember that. */ |
aca2020b | 1398 | PRINT_NUMBER_STATUS (Vprint_number_table, i) = Qt; |
aa0b0cd9 | 1399 | print_depth--; |
aca2020b KH |
1400 | return; |
1401 | } | |
1402 | ||
1403 | /* OBJ is not yet recorded. Let's add to the table. */ | |
1404 | if (print_number_index == 0) | |
1405 | { | |
1406 | /* Initialize the table. */ | |
1407 | Vprint_number_table = Fmake_vector (make_number (40), Qnil); | |
1408 | } | |
1409 | else if (XVECTOR (Vprint_number_table)->size == print_number_index * 2) | |
0f25ecc6 | 1410 | { |
aca2020b KH |
1411 | /* Reallocate the table. */ |
1412 | int i = print_number_index * 4; | |
1413 | Lisp_Object old_table = Vprint_number_table; | |
1414 | Vprint_number_table = Fmake_vector (make_number (i), Qnil); | |
1415 | for (i = 0; i < print_number_index; i++) | |
1416 | { | |
1417 | PRINT_NUMBER_OBJECT (Vprint_number_table, i) | |
1418 | = PRINT_NUMBER_OBJECT (old_table, i); | |
1419 | PRINT_NUMBER_STATUS (Vprint_number_table, i) | |
1420 | = PRINT_NUMBER_STATUS (old_table, i); | |
1421 | } | |
0f25ecc6 | 1422 | } |
aca2020b KH |
1423 | PRINT_NUMBER_OBJECT (Vprint_number_table, print_number_index) = obj; |
1424 | /* If Vprint_continuous_numbering is non-nil and OBJ is a gensym, | |
1425 | always print the gensym with a number. This is a special for | |
1426 | the lisp function byte-compile-output-docform. */ | |
bf9f2aab GM |
1427 | if (!NILP (Vprint_continuous_numbering) |
1428 | && SYMBOLP (obj) | |
1429 | && !SYMBOL_INTERNED_P (obj)) | |
aca2020b KH |
1430 | PRINT_NUMBER_STATUS (Vprint_number_table, print_number_index) = Qt; |
1431 | print_number_index++; | |
0f25ecc6 | 1432 | } |
0f25ecc6 | 1433 | |
8e50cc2d | 1434 | switch (XTYPE (obj)) |
0f25ecc6 RS |
1435 | { |
1436 | case Lisp_String: | |
0f25ecc6 | 1437 | /* A string may have text properties, which can be circular. */ |
d5db4077 | 1438 | traverse_intervals_noorder (STRING_INTERVALS (obj), |
8bbfc258 | 1439 | print_preprocess_string, Qnil); |
0f25ecc6 RS |
1440 | break; |
1441 | ||
1442 | case Lisp_Cons: | |
c1132671 RS |
1443 | /* Use HALFTAIL and LOOP_COUNT to detect circular lists, |
1444 | just as in print_object. */ | |
1445 | if (loop_count && EQ (obj, halftail)) | |
1446 | break; | |
0f25ecc6 RS |
1447 | print_preprocess (XCAR (obj)); |
1448 | obj = XCDR (obj); | |
c1132671 RS |
1449 | loop_count++; |
1450 | if (!(loop_count & 1)) | |
1451 | halftail = XCDR (halftail); | |
0f25ecc6 RS |
1452 | goto loop; |
1453 | ||
1454 | case Lisp_Vectorlike: | |
6b61353c KH |
1455 | size = XVECTOR (obj)->size; |
1456 | if (size & PSEUDOVECTOR_FLAG) | |
1457 | size &= PSEUDOVECTOR_SIZE_MASK; | |
0f25ecc6 RS |
1458 | for (i = 0; i < size; i++) |
1459 | print_preprocess (XVECTOR (obj)->contents[i]); | |
ee5263af GM |
1460 | break; |
1461 | ||
1462 | default: | |
1463 | break; | |
0f25ecc6 RS |
1464 | } |
1465 | } | |
c1132671 | 1466 | print_depth--; |
0f25ecc6 RS |
1467 | } |
1468 | ||
0f25ecc6 RS |
1469 | static void |
1470 | print_preprocess_string (interval, arg) | |
1471 | INTERVAL interval; | |
1472 | Lisp_Object arg; | |
1473 | { | |
1474 | print_preprocess (interval->plist); | |
1475 | } | |
0f25ecc6 | 1476 | |
71ea13cb KH |
1477 | /* A flag to control printing of `charset' text property. |
1478 | The default value is Qdefault. */ | |
1479 | Lisp_Object Vprint_charset_text_property; | |
1480 | extern Lisp_Object Qdefault; | |
1481 | ||
1482 | static void print_check_string_charset_prop (); | |
1483 | ||
1484 | #define PRINT_STRING_NON_CHARSET_FOUND 1 | |
1485 | #define PRINT_STRING_UNSAFE_CHARSET_FOUND 2 | |
1486 | ||
1487 | /* Bitwize or of the abobe macros. */ | |
1488 | static int print_check_string_result; | |
1489 | ||
1490 | static void | |
1491 | print_check_string_charset_prop (interval, string) | |
1492 | INTERVAL interval; | |
1493 | Lisp_Object string; | |
1494 | { | |
1495 | Lisp_Object val; | |
1496 | ||
1497 | if (NILP (interval->plist) | |
1498 | || (print_check_string_result == (PRINT_STRING_NON_CHARSET_FOUND | |
1499 | | PRINT_STRING_UNSAFE_CHARSET_FOUND))) | |
1500 | return; | |
1501 | for (val = interval->plist; CONSP (val) && ! EQ (XCAR (val), Qcharset); | |
1502 | val = XCDR (XCDR (val))); | |
1503 | if (! CONSP (val)) | |
1504 | { | |
1505 | print_check_string_result |= PRINT_STRING_NON_CHARSET_FOUND; | |
1506 | return; | |
1507 | } | |
1508 | if (! (print_check_string_result & PRINT_STRING_NON_CHARSET_FOUND)) | |
1509 | { | |
1510 | if (! EQ (val, interval->plist) | |
1511 | || CONSP (XCDR (XCDR (val)))) | |
1512 | print_check_string_result |= PRINT_STRING_NON_CHARSET_FOUND; | |
1513 | } | |
1514 | if (NILP (Vprint_charset_text_property) | |
1515 | || ! (print_check_string_result & PRINT_STRING_UNSAFE_CHARSET_FOUND)) | |
1516 | { | |
1517 | int i, c; | |
1518 | int charpos = interval->position; | |
1519 | int bytepos = string_char_to_byte (string, charpos); | |
1520 | Lisp_Object charset; | |
1521 | ||
1522 | charset = XCAR (XCDR (val)); | |
1523 | for (i = 0; i < LENGTH (interval); i++) | |
1524 | { | |
1525 | FETCH_STRING_CHAR_ADVANCE (c, string, charpos, bytepos); | |
c80bcdbc KH |
1526 | if (! ASCII_CHAR_P (c) |
1527 | && ! EQ (CHARSET_NAME (CHAR_CHARSET (c)), charset)) | |
71ea13cb KH |
1528 | { |
1529 | print_check_string_result |= PRINT_STRING_UNSAFE_CHARSET_FOUND; | |
1530 | break; | |
1531 | } | |
1532 | } | |
1533 | } | |
1534 | } | |
1535 | ||
1536 | /* The value is (charset . nil). */ | |
1537 | static Lisp_Object print_prune_charset_plist; | |
1538 | ||
1539 | static Lisp_Object | |
1540 | print_prune_string_charset (string) | |
1541 | Lisp_Object string; | |
1542 | { | |
1543 | print_check_string_result = 0; | |
1544 | traverse_intervals (STRING_INTERVALS (string), 0, | |
1545 | print_check_string_charset_prop, string); | |
1546 | if (! (print_check_string_result & PRINT_STRING_UNSAFE_CHARSET_FOUND)) | |
1547 | { | |
1548 | string = Fcopy_sequence (string); | |
1549 | if (print_check_string_result & PRINT_STRING_NON_CHARSET_FOUND) | |
1550 | { | |
1551 | if (NILP (print_prune_charset_plist)) | |
1552 | print_prune_charset_plist = Fcons (Qcharset, Qnil); | |
eabe04c0 KH |
1553 | Fremove_text_properties (make_number (0), |
1554 | make_number (SCHARS (string)), | |
71ea13cb KH |
1555 | print_prune_charset_plist, string); |
1556 | } | |
1557 | else | |
eabe04c0 KH |
1558 | Fset_text_properties (make_number (0), make_number (SCHARS (string)), |
1559 | Qnil, string); | |
71ea13cb KH |
1560 | } |
1561 | return string; | |
1562 | } | |
1563 | ||
0f25ecc6 RS |
1564 | static void |
1565 | print_object (obj, printcharfun, escapeflag) | |
1566 | Lisp_Object obj; | |
1567 | register Lisp_Object printcharfun; | |
1568 | int escapeflag; | |
1569 | { | |
28b8f740 | 1570 | char buf[40]; |
0f25ecc6 RS |
1571 | |
1572 | QUIT; | |
1573 | ||
1574 | /* Detect circularities and truncate them. */ | |
1575 | if (STRINGP (obj) || CONSP (obj) || VECTORP (obj) | |
dec47cc3 | 1576 | || COMPILEDP (obj) || CHAR_TABLE_P (obj) || SUB_CHAR_TABLE_P (obj) |
0f25ecc6 | 1577 | || (! NILP (Vprint_gensym) |
bf9f2aab GM |
1578 | && SYMBOLP (obj) |
1579 | && !SYMBOL_INTERNED_P (obj))) | |
0f25ecc6 RS |
1580 | { |
1581 | if (NILP (Vprint_circle) && NILP (Vprint_gensym)) | |
1582 | { | |
1583 | /* Simple but incomplete way. */ | |
1584 | int i; | |
1585 | for (i = 0; i < print_depth; i++) | |
1586 | if (EQ (obj, being_printed[i])) | |
1587 | { | |
1588 | sprintf (buf, "#%d", i); | |
1589 | strout (buf, -1, -1, printcharfun, 0); | |
1590 | return; | |
1591 | } | |
1592 | being_printed[print_depth] = obj; | |
1593 | } | |
1594 | else | |
1595 | { | |
1596 | /* With the print-circle feature. */ | |
1597 | int i; | |
1598 | for (i = 0; i < print_number_index; i++) | |
7c752c80 | 1599 | if (EQ (PRINT_NUMBER_OBJECT (Vprint_number_table, i), obj)) |
0f25ecc6 RS |
1600 | { |
1601 | if (NILP (PRINT_NUMBER_STATUS (Vprint_number_table, i))) | |
1602 | { | |
1603 | /* Add a prefix #n= if OBJ has not yet been printed; | |
1604 | that is, its status field is nil. */ | |
1605 | sprintf (buf, "#%d=", i + 1); | |
1606 | strout (buf, -1, -1, printcharfun, 0); | |
1607 | /* OBJ is going to be printed. Set the status to t. */ | |
1608 | PRINT_NUMBER_STATUS (Vprint_number_table, i) = Qt; | |
1609 | break; | |
1610 | } | |
1611 | else | |
1612 | { | |
1613 | /* Just print #n# if OBJ has already been printed. */ | |
1614 | sprintf (buf, "#%d#", i + 1); | |
1615 | strout (buf, -1, -1, printcharfun, 0); | |
1616 | return; | |
1617 | } | |
1618 | } | |
1619 | } | |
ec838c39 | 1620 | } |
ec838c39 | 1621 | |
38010d50 JB |
1622 | print_depth++; |
1623 | ||
c1132671 | 1624 | /* See similar code in print_preprocess. */ |
ec838c39 | 1625 | if (print_depth > PRINT_CIRCLE) |
38010d50 JB |
1626 | error ("Apparently circular structure being printed"); |
1627 | #ifdef MAX_PRINT_CHARS | |
1628 | if (max_print && print_chars > max_print) | |
1629 | { | |
1630 | PRINTCHAR ('\n'); | |
1631 | print_chars = 0; | |
1632 | } | |
1633 | #endif /* MAX_PRINT_CHARS */ | |
1634 | ||
8e50cc2d | 1635 | switch (XTYPE (obj)) |
38010d50 | 1636 | { |
ca0569ad | 1637 | case Lisp_Int: |
b8180922 | 1638 | if (sizeof (int) == sizeof (EMACS_INT)) |
6af1696d | 1639 | sprintf (buf, "%d", (int) XINT (obj)); |
b8180922 | 1640 | else if (sizeof (long) == sizeof (EMACS_INT)) |
63fbf4ff | 1641 | sprintf (buf, "%ld", (long) XINT (obj)); |
b8180922 RS |
1642 | else |
1643 | abort (); | |
dc2a0b79 | 1644 | strout (buf, -1, -1, printcharfun, 0); |
ca0569ad RS |
1645 | break; |
1646 | ||
ca0569ad RS |
1647 | case Lisp_Float: |
1648 | { | |
1649 | char pigbuf[350]; /* see comments in float_to_string */ | |
38010d50 | 1650 | |
94b342ce | 1651 | float_to_string (pigbuf, XFLOAT_DATA (obj)); |
dc2a0b79 | 1652 | strout (pigbuf, -1, -1, printcharfun, 0); |
ca0569ad RS |
1653 | } |
1654 | break; | |
ca0569ad RS |
1655 | |
1656 | case Lisp_String: | |
38010d50 JB |
1657 | if (!escapeflag) |
1658 | print_string (obj, printcharfun); | |
1659 | else | |
1660 | { | |
dc2a0b79 | 1661 | register int i, i_byte; |
38010d50 | 1662 | struct gcpro gcpro1; |
872a36d2 | 1663 | unsigned char *str; |
dc2a0b79 | 1664 | int size_byte; |
453fa987 RS |
1665 | /* 1 means we must ensure that the next character we output |
1666 | cannot be taken as part of a hex character escape. */ | |
1667 | int need_nonhex = 0; | |
db300f59 | 1668 | int multibyte = STRING_MULTIBYTE (obj); |
38010d50 | 1669 | |
7651e1f5 RS |
1670 | GCPRO1 (obj); |
1671 | ||
71ea13cb KH |
1672 | if (! EQ (Vprint_charset_text_property, Qt)) |
1673 | obj = print_prune_string_charset (obj); | |
1674 | ||
d5db4077 | 1675 | if (!NULL_INTERVAL_P (STRING_INTERVALS (obj))) |
7651e1f5 RS |
1676 | { |
1677 | PRINTCHAR ('#'); | |
1678 | PRINTCHAR ('('); | |
1679 | } | |
38010d50 JB |
1680 | |
1681 | PRINTCHAR ('\"'); | |
d5db4077 KR |
1682 | str = SDATA (obj); |
1683 | size_byte = SBYTES (obj); | |
dc2a0b79 RS |
1684 | |
1685 | for (i = 0, i_byte = 0; i_byte < size_byte;) | |
38010d50 | 1686 | { |
6ddd6eee RS |
1687 | /* Here, we must convert each multi-byte form to the |
1688 | corresponding character code before handing it to PRINTCHAR. */ | |
1689 | int len; | |
dc2a0b79 RS |
1690 | int c; |
1691 | ||
db300f59 | 1692 | if (multibyte) |
872a36d2 | 1693 | { |
765fe1d0 KH |
1694 | c = STRING_CHAR_AND_LENGTH (str + i_byte, |
1695 | size_byte - i_byte, len); | |
8b4b4467 | 1696 | i_byte += len; |
872a36d2 | 1697 | } |
dc2a0b79 | 1698 | else |
872a36d2 | 1699 | c = str[i_byte++]; |
dc2a0b79 | 1700 | |
38010d50 | 1701 | QUIT; |
6ddd6eee | 1702 | |
38010d50 JB |
1703 | if (c == '\n' && print_escape_newlines) |
1704 | { | |
1705 | PRINTCHAR ('\\'); | |
1706 | PRINTCHAR ('n'); | |
1707 | } | |
c6f7982f RM |
1708 | else if (c == '\f' && print_escape_newlines) |
1709 | { | |
1710 | PRINTCHAR ('\\'); | |
1711 | PRINTCHAR ('f'); | |
1712 | } | |
ae7367d3 | 1713 | else if (multibyte |
73af357a KH |
1714 | && (CHAR_BYTE8_P (c) |
1715 | || (! ASCII_CHAR_P (c) && print_escape_multibyte))) | |
dc2a0b79 RS |
1716 | { |
1717 | /* When multibyte is disabled, | |
ae7367d3 RS |
1718 | print multibyte string chars using hex escapes. |
1719 | For a char code that could be in a unibyte string, | |
1720 | when found in a multibyte string, always use a hex escape | |
1721 | so it reads back as multibyte. */ | |
dc2a0b79 | 1722 | unsigned char outbuf[50]; |
8b4b4467 KH |
1723 | |
1724 | if (CHAR_BYTE8_P (c)) | |
1725 | sprintf (outbuf, "\\%03o", CHAR_TO_BYTE8 (c)); | |
1726 | else | |
8f924df7 KH |
1727 | { |
1728 | sprintf (outbuf, "\\x%04x", c); | |
1729 | need_nonhex = 1; | |
1730 | } | |
dc2a0b79 RS |
1731 | strout (outbuf, -1, -1, printcharfun, 0); |
1732 | } | |
db300f59 RS |
1733 | else if (! multibyte |
1734 | && SINGLE_BYTE_CHAR_P (c) && ! ASCII_BYTE_P (c) | |
835d0be6 | 1735 | && print_escape_nonascii) |
974a6ff5 | 1736 | { |
835d0be6 RS |
1737 | /* When printing in a multibyte buffer |
1738 | or when explicitly requested, | |
974a6ff5 KH |
1739 | print single-byte non-ASCII string chars |
1740 | using octal escapes. */ | |
1741 | unsigned char outbuf[5]; | |
1742 | sprintf (outbuf, "\\%03o", c); | |
1743 | strout (outbuf, -1, -1, printcharfun, 0); | |
1744 | } | |
38010d50 JB |
1745 | else |
1746 | { | |
453fa987 RS |
1747 | /* If we just had a hex escape, and this character |
1748 | could be taken as part of it, | |
1749 | output `\ ' to prevent that. */ | |
1b62edd6 KH |
1750 | if (need_nonhex) |
1751 | { | |
1752 | need_nonhex = 0; | |
1753 | if ((c >= 'a' && c <= 'f') | |
453fa987 | 1754 | || (c >= 'A' && c <= 'F') |
1b62edd6 KH |
1755 | || (c >= '0' && c <= '9')) |
1756 | strout ("\\ ", -1, -1, printcharfun, 0); | |
1757 | } | |
453fa987 | 1758 | |
38010d50 JB |
1759 | if (c == '\"' || c == '\\') |
1760 | PRINTCHAR ('\\'); | |
1761 | PRINTCHAR (c); | |
1762 | } | |
1763 | } | |
1764 | PRINTCHAR ('\"'); | |
7651e1f5 | 1765 | |
d5db4077 | 1766 | if (!NULL_INTERVAL_P (STRING_INTERVALS (obj))) |
7651e1f5 | 1767 | { |
d5db4077 | 1768 | traverse_intervals (STRING_INTERVALS (obj), |
8bbfc258 | 1769 | 0, print_interval, printcharfun); |
7651e1f5 RS |
1770 | PRINTCHAR (')'); |
1771 | } | |
7651e1f5 | 1772 | |
38010d50 JB |
1773 | UNGCPRO; |
1774 | } | |
ca0569ad | 1775 | break; |
38010d50 | 1776 | |
ca0569ad RS |
1777 | case Lisp_Symbol: |
1778 | { | |
1779 | register int confusing; | |
d5db4077 KR |
1780 | register unsigned char *p = SDATA (SYMBOL_NAME (obj)); |
1781 | register unsigned char *end = p + SBYTES (SYMBOL_NAME (obj)); | |
2190a05e | 1782 | register int c; |
dc2a0b79 RS |
1783 | int i, i_byte, size_byte; |
1784 | Lisp_Object name; | |
1785 | ||
76d0b3ae | 1786 | name = SYMBOL_NAME (obj); |
ca0569ad RS |
1787 | |
1788 | if (p != end && (*p == '-' || *p == '+')) p++; | |
1789 | if (p == end) | |
1790 | confusing = 0; | |
d27497e3 RS |
1791 | /* If symbol name begins with a digit, and ends with a digit, |
1792 | and contains nothing but digits and `e', it could be treated | |
1793 | as a number. So set CONFUSING. | |
1794 | ||
1795 | Symbols that contain periods could also be taken as numbers, | |
1796 | but periods are always escaped, so we don't have to worry | |
1797 | about them here. */ | |
1798 | else if (*p >= '0' && *p <= '9' | |
1799 | && end[-1] >= '0' && end[-1] <= '9') | |
ca0569ad | 1800 | { |
e837058b RS |
1801 | while (p != end && ((*p >= '0' && *p <= '9') |
1802 | /* Needed for \2e10. */ | |
1803 | || *p == 'e')) | |
ca0569ad RS |
1804 | p++; |
1805 | confusing = (end == p); | |
1806 | } | |
d27497e3 RS |
1807 | else |
1808 | confusing = 0; | |
ca0569ad | 1809 | |
bf9f2aab | 1810 | if (! NILP (Vprint_gensym) && !SYMBOL_INTERNED_P (obj)) |
081e0581 | 1811 | { |
081e0581 EN |
1812 | PRINTCHAR ('#'); |
1813 | PRINTCHAR (':'); | |
1814 | } | |
1815 | ||
d5db4077 | 1816 | size_byte = SBYTES (name); |
dc2a0b79 RS |
1817 | |
1818 | for (i = 0, i_byte = 0; i_byte < size_byte;) | |
ca0569ad | 1819 | { |
6ddd6eee RS |
1820 | /* Here, we must convert each multi-byte form to the |
1821 | corresponding character code before handing it to PRINTCHAR. */ | |
eba90784 | 1822 | FETCH_STRING_CHAR_ADVANCE (c, name, i, i_byte); |
ca0569ad | 1823 | QUIT; |
09eddb56 | 1824 | |
ca0569ad RS |
1825 | if (escapeflag) |
1826 | { | |
09eddb56 RS |
1827 | if (c == '\"' || c == '\\' || c == '\'' |
1828 | || c == ';' || c == '#' || c == '(' || c == ')' | |
1829 | || c == ',' || c =='.' || c == '`' | |
1830 | || c == '[' || c == ']' || c == '?' || c <= 040 | |
1831 | || confusing) | |
ca0569ad RS |
1832 | PRINTCHAR ('\\'), confusing = 0; |
1833 | } | |
1834 | PRINTCHAR (c); | |
1835 | } | |
1836 | } | |
1837 | break; | |
1838 | ||
1839 | case Lisp_Cons: | |
38010d50 | 1840 | /* If deeper than spec'd depth, print placeholder. */ |
d4ae1f7e | 1841 | if (INTEGERP (Vprint_level) |
38010d50 | 1842 | && print_depth > XINT (Vprint_level)) |
dc2a0b79 | 1843 | strout ("...", -1, -1, printcharfun, 0); |
2f100b5c EN |
1844 | else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj))) |
1845 | && (EQ (XCAR (obj), Qquote))) | |
1846 | { | |
1847 | PRINTCHAR ('\''); | |
0f25ecc6 | 1848 | print_object (XCAR (XCDR (obj)), printcharfun, escapeflag); |
2f100b5c EN |
1849 | } |
1850 | else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj))) | |
1851 | && (EQ (XCAR (obj), Qfunction))) | |
1852 | { | |
1853 | PRINTCHAR ('#'); | |
1854 | PRINTCHAR ('\''); | |
0f25ecc6 | 1855 | print_object (XCAR (XCDR (obj)), printcharfun, escapeflag); |
2f100b5c EN |
1856 | } |
1857 | else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj))) | |
a22dec27 SM |
1858 | && ((EQ (XCAR (obj), Qbackquote)))) |
1859 | { | |
1860 | print_object (XCAR (obj), printcharfun, 0); | |
1861 | new_backquote_output++; | |
1862 | print_object (XCAR (XCDR (obj)), printcharfun, escapeflag); | |
1863 | new_backquote_output--; | |
1864 | } | |
1865 | else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj))) | |
1866 | && new_backquote_output | |
2f100b5c EN |
1867 | && ((EQ (XCAR (obj), Qbackquote) |
1868 | || EQ (XCAR (obj), Qcomma) | |
1869 | || EQ (XCAR (obj), Qcomma_at) | |
1870 | || EQ (XCAR (obj), Qcomma_dot)))) | |
1871 | { | |
0f25ecc6 | 1872 | print_object (XCAR (obj), printcharfun, 0); |
a22dec27 | 1873 | new_backquote_output--; |
0f25ecc6 | 1874 | print_object (XCAR (XCDR (obj)), printcharfun, escapeflag); |
a22dec27 | 1875 | new_backquote_output++; |
2f100b5c | 1876 | } |
e0f93814 | 1877 | else |
38010d50 | 1878 | { |
e0f93814 | 1879 | PRINTCHAR ('('); |
177c0ea7 | 1880 | |
0330bb60 RS |
1881 | /* If the first element is a backquote form, |
1882 | print it old-style so it won't be misunderstood. */ | |
1883 | if (print_quoted && CONSP (XCAR (obj)) | |
1884 | && CONSP (XCDR (XCAR (obj))) | |
1885 | && NILP (XCDR (XCDR (XCAR (obj)))) | |
1886 | && EQ (XCAR (XCAR (obj)), Qbackquote)) | |
1887 | { | |
1888 | Lisp_Object tem; | |
1889 | tem = XCAR (obj); | |
1890 | PRINTCHAR ('('); | |
1891 | ||
1892 | print_object (Qbackquote, printcharfun, 0); | |
1893 | PRINTCHAR (' '); | |
1894 | ||
0330bb60 | 1895 | print_object (XCAR (XCDR (tem)), printcharfun, 0); |
0330bb60 RS |
1896 | PRINTCHAR (')'); |
1897 | ||
1898 | obj = XCDR (obj); | |
1899 | } | |
1900 | ||
38010d50 | 1901 | { |
42ac1ed4 | 1902 | int print_length, i; |
1eab22b5 | 1903 | Lisp_Object halftail = obj; |
e0f93814 | 1904 | |
9ab8560d | 1905 | /* Negative values of print-length are invalid in CL. |
42ac1ed4 GM |
1906 | Treat them like nil, as CMUCL does. */ |
1907 | if (NATNUMP (Vprint_length)) | |
1908 | print_length = XFASTINT (Vprint_length); | |
1909 | else | |
1910 | print_length = 0; | |
1911 | ||
1912 | i = 0; | |
e0f93814 | 1913 | while (CONSP (obj)) |
38010d50 | 1914 | { |
1eab22b5 | 1915 | /* Detect circular list. */ |
0f25ecc6 | 1916 | if (NILP (Vprint_circle)) |
1eab22b5 | 1917 | { |
0f25ecc6 RS |
1918 | /* Simple but imcomplete way. */ |
1919 | if (i != 0 && EQ (obj, halftail)) | |
1920 | { | |
1921 | sprintf (buf, " . #%d", i / 2); | |
1922 | strout (buf, -1, -1, printcharfun, 0); | |
1923 | goto end_of_list; | |
1924 | } | |
1925 | } | |
1926 | else | |
1927 | { | |
1928 | /* With the print-circle feature. */ | |
1929 | if (i != 0) | |
1930 | { | |
1931 | int i; | |
1932 | for (i = 0; i < print_number_index; i++) | |
42ac1ed4 GM |
1933 | if (EQ (PRINT_NUMBER_OBJECT (Vprint_number_table, i), |
1934 | obj)) | |
0f25ecc6 RS |
1935 | { |
1936 | if (NILP (PRINT_NUMBER_STATUS (Vprint_number_table, i))) | |
1937 | { | |
1938 | strout (" . ", 3, 3, printcharfun, 0); | |
1939 | print_object (obj, printcharfun, escapeflag); | |
1940 | } | |
1941 | else | |
1942 | { | |
1943 | sprintf (buf, " . #%d#", i + 1); | |
1944 | strout (buf, -1, -1, printcharfun, 0); | |
1945 | } | |
1946 | goto end_of_list; | |
1947 | } | |
1948 | } | |
1eab22b5 | 1949 | } |
177c0ea7 | 1950 | |
e0f93814 KH |
1951 | if (i++) |
1952 | PRINTCHAR (' '); | |
177c0ea7 | 1953 | |
f4fe72d5 | 1954 | if (print_length && i > print_length) |
e0f93814 | 1955 | { |
dc2a0b79 | 1956 | strout ("...", 3, 3, printcharfun, 0); |
0f25ecc6 | 1957 | goto end_of_list; |
e0f93814 | 1958 | } |
177c0ea7 | 1959 | |
0f25ecc6 | 1960 | print_object (XCAR (obj), printcharfun, escapeflag); |
177c0ea7 | 1961 | |
2f100b5c | 1962 | obj = XCDR (obj); |
1eab22b5 RS |
1963 | if (!(i & 1)) |
1964 | halftail = XCDR (halftail); | |
38010d50 | 1965 | } |
38010d50 | 1966 | } |
42ac1ed4 GM |
1967 | |
1968 | /* OBJ non-nil here means it's the end of a dotted list. */ | |
2f100b5c | 1969 | if (!NILP (obj)) |
e0f93814 | 1970 | { |
dc2a0b79 | 1971 | strout (" . ", 3, 3, printcharfun, 0); |
0f25ecc6 | 1972 | print_object (obj, printcharfun, escapeflag); |
e0f93814 | 1973 | } |
177c0ea7 | 1974 | |
0f25ecc6 | 1975 | end_of_list: |
e0f93814 | 1976 | PRINTCHAR (')'); |
38010d50 | 1977 | } |
ca0569ad RS |
1978 | break; |
1979 | ||
1980 | case Lisp_Vectorlike: | |
1981 | if (PROCESSP (obj)) | |
1982 | { | |
1983 | if (escapeflag) | |
1984 | { | |
dc2a0b79 | 1985 | strout ("#<process ", -1, -1, printcharfun, 0); |
ca0569ad RS |
1986 | print_string (XPROCESS (obj)->name, printcharfun); |
1987 | PRINTCHAR ('>'); | |
1988 | } | |
1989 | else | |
1990 | print_string (XPROCESS (obj)->name, printcharfun); | |
1991 | } | |
ed2c35ef RS |
1992 | else if (BOOL_VECTOR_P (obj)) |
1993 | { | |
1994 | register int i; | |
1995 | register unsigned char c; | |
1996 | struct gcpro gcpro1; | |
ed2c35ef | 1997 | int size_in_chars |
4b5af5e4 AS |
1998 | = ((XBOOL_VECTOR (obj)->size + BOOL_VECTOR_BITS_PER_CHAR - 1) |
1999 | / BOOL_VECTOR_BITS_PER_CHAR); | |
ed2c35ef RS |
2000 | |
2001 | GCPRO1 (obj); | |
2002 | ||
2003 | PRINTCHAR ('#'); | |
2004 | PRINTCHAR ('&'); | |
474f84d9 | 2005 | sprintf (buf, "%ld", (long) XBOOL_VECTOR (obj)->size); |
dc2a0b79 | 2006 | strout (buf, -1, -1, printcharfun, 0); |
ed2c35ef | 2007 | PRINTCHAR ('\"'); |
a40384bc | 2008 | |
42ac1ed4 | 2009 | /* Don't print more characters than the specified maximum. |
9ab8560d | 2010 | Negative values of print-length are invalid. Treat them |
42ac1ed4 GM |
2011 | like a print-length of nil. */ |
2012 | if (NATNUMP (Vprint_length) | |
2013 | && XFASTINT (Vprint_length) < size_in_chars) | |
2014 | size_in_chars = XFASTINT (Vprint_length); | |
a40384bc | 2015 | |
ed2c35ef RS |
2016 | for (i = 0; i < size_in_chars; i++) |
2017 | { | |
2018 | QUIT; | |
2019 | c = XBOOL_VECTOR (obj)->data[i]; | |
b2d28215 KH |
2020 | if (! ASCII_BYTE_P (c)) |
2021 | { | |
2022 | sprintf (buf, "\\%03o", c); | |
2023 | strout (buf, -1, -1, printcharfun, 0); | |
2024 | } | |
2025 | else if (c == '\n' && print_escape_newlines) | |
ed2c35ef RS |
2026 | { |
2027 | PRINTCHAR ('\\'); | |
2028 | PRINTCHAR ('n'); | |
2029 | } | |
2030 | else if (c == '\f' && print_escape_newlines) | |
2031 | { | |
2032 | PRINTCHAR ('\\'); | |
2033 | PRINTCHAR ('f'); | |
2034 | } | |
4b5af5e4 AS |
2035 | else if (c > '\177') |
2036 | { | |
2037 | /* Use octal escapes to avoid encoding issues. */ | |
2038 | PRINTCHAR ('\\'); | |
2039 | PRINTCHAR ('0' + ((c >> 6) & 3)); | |
2040 | PRINTCHAR ('0' + ((c >> 3) & 7)); | |
2041 | PRINTCHAR ('0' + (c & 7)); | |
2042 | } | |
ed2c35ef RS |
2043 | else |
2044 | { | |
2045 | if (c == '\"' || c == '\\') | |
2046 | PRINTCHAR ('\\'); | |
2047 | PRINTCHAR (c); | |
2048 | } | |
2049 | } | |
2050 | PRINTCHAR ('\"'); | |
2051 | ||
2052 | UNGCPRO; | |
2053 | } | |
ca0569ad RS |
2054 | else if (SUBRP (obj)) |
2055 | { | |
dc2a0b79 RS |
2056 | strout ("#<subr ", -1, -1, printcharfun, 0); |
2057 | strout (XSUBR (obj)->symbol_name, -1, -1, printcharfun, 0); | |
ca0569ad RS |
2058 | PRINTCHAR ('>'); |
2059 | } | |
ca0569ad RS |
2060 | else if (WINDOWP (obj)) |
2061 | { | |
dc2a0b79 | 2062 | strout ("#<window ", -1, -1, printcharfun, 0); |
474f84d9 | 2063 | sprintf (buf, "%ld", (long) XFASTINT (XWINDOW (obj)->sequence_number)); |
dc2a0b79 | 2064 | strout (buf, -1, -1, printcharfun, 0); |
ca0569ad RS |
2065 | if (!NILP (XWINDOW (obj)->buffer)) |
2066 | { | |
dc2a0b79 | 2067 | strout (" on ", -1, -1, printcharfun, 0); |
ca0569ad RS |
2068 | print_string (XBUFFER (XWINDOW (obj)->buffer)->name, printcharfun); |
2069 | } | |
2070 | PRINTCHAR ('>'); | |
2071 | } | |
f76c8b1e SM |
2072 | else if (TERMINALP (obj)) |
2073 | { | |
2074 | struct terminal *t = XTERMINAL (obj); | |
2075 | strout ("#<terminal ", -1, -1, printcharfun, 0); | |
2076 | sprintf (buf, "%d", t->id); | |
2077 | strout (buf, -1, -1, printcharfun, 0); | |
2078 | if (t->name) | |
2079 | { | |
2080 | strout (" on ", -1, -1, printcharfun, 0); | |
2081 | strout (t->name, -1, -1, printcharfun, 0); | |
2082 | } | |
2083 | PRINTCHAR ('>'); | |
2084 | } | |
7eb03302 GM |
2085 | else if (HASH_TABLE_P (obj)) |
2086 | { | |
2087 | struct Lisp_Hash_Table *h = XHASH_TABLE (obj); | |
2088 | strout ("#<hash-table", -1, -1, printcharfun, 0); | |
2089 | if (SYMBOLP (h->test)) | |
2090 | { | |
2091 | PRINTCHAR (' '); | |
2092 | PRINTCHAR ('\''); | |
d5db4077 | 2093 | strout (SDATA (SYMBOL_NAME (h->test)), -1, -1, printcharfun, 0); |
7eb03302 | 2094 | PRINTCHAR (' '); |
d5db4077 | 2095 | strout (SDATA (SYMBOL_NAME (h->weak)), -1, -1, printcharfun, 0); |
7eb03302 | 2096 | PRINTCHAR (' '); |
878f97ff | 2097 | sprintf (buf, "%ld/%ld", (long) h->count, |
474f84d9 | 2098 | (long) XVECTOR (h->next)->size); |
7eb03302 GM |
2099 | strout (buf, -1, -1, printcharfun, 0); |
2100 | } | |
2101 | sprintf (buf, " 0x%lx", (unsigned long) h); | |
2102 | strout (buf, -1, -1, printcharfun, 0); | |
2103 | PRINTCHAR ('>'); | |
2104 | } | |
908b0ae5 RS |
2105 | else if (BUFFERP (obj)) |
2106 | { | |
2107 | if (NILP (XBUFFER (obj)->name)) | |
dc2a0b79 | 2108 | strout ("#<killed buffer>", -1, -1, printcharfun, 0); |
908b0ae5 RS |
2109 | else if (escapeflag) |
2110 | { | |
dc2a0b79 | 2111 | strout ("#<buffer ", -1, -1, printcharfun, 0); |
908b0ae5 RS |
2112 | print_string (XBUFFER (obj)->name, printcharfun); |
2113 | PRINTCHAR ('>'); | |
2114 | } | |
2115 | else | |
2116 | print_string (XBUFFER (obj)->name, printcharfun); | |
2117 | } | |
ca0569ad RS |
2118 | else if (WINDOW_CONFIGURATIONP (obj)) |
2119 | { | |
dc2a0b79 | 2120 | strout ("#<window-configuration>", -1, -1, printcharfun, 0); |
ca0569ad | 2121 | } |
ca0569ad RS |
2122 | else if (FRAMEP (obj)) |
2123 | { | |
2124 | strout ((FRAME_LIVE_P (XFRAME (obj)) | |
2125 | ? "#<frame " : "#<dead frame "), | |
dc2a0b79 | 2126 | -1, -1, printcharfun, 0); |
ca0569ad | 2127 | print_string (XFRAME (obj)->name, printcharfun); |
aab3aa14 | 2128 | sprintf (buf, " 0x%lx", (unsigned long) (XFRAME (obj))); |
dc2a0b79 | 2129 | strout (buf, -1, -1, printcharfun, 0); |
ca0569ad RS |
2130 | PRINTCHAR ('>'); |
2131 | } | |
ca0569ad RS |
2132 | else |
2133 | { | |
6b61353c | 2134 | EMACS_INT size = XVECTOR (obj)->size; |
ca0569ad RS |
2135 | if (COMPILEDP (obj)) |
2136 | { | |
2137 | PRINTCHAR ('#'); | |
2138 | size &= PSEUDOVECTOR_SIZE_MASK; | |
2139 | } | |
8b4b4467 | 2140 | if (CHAR_TABLE_P (obj) || SUB_CHAR_TABLE_P (obj)) |
ed2c35ef RS |
2141 | { |
2142 | /* We print a char-table as if it were a vector, | |
2143 | lumping the parent and default slots in with the | |
2144 | character slots. But we add #^ as a prefix. */ | |
2145 | PRINTCHAR ('#'); | |
2146 | PRINTCHAR ('^'); | |
3701b5de KH |
2147 | if (SUB_CHAR_TABLE_P (obj)) |
2148 | PRINTCHAR ('^'); | |
ed2c35ef RS |
2149 | size &= PSEUDOVECTOR_SIZE_MASK; |
2150 | } | |
00d76abc KH |
2151 | if (size & PSEUDOVECTOR_FLAG) |
2152 | goto badtype; | |
ca0569ad RS |
2153 | |
2154 | PRINTCHAR ('['); | |
38010d50 | 2155 | { |
ca0569ad RS |
2156 | register int i; |
2157 | register Lisp_Object tem; | |
d6ac884e | 2158 | int real_size = size; |
a40384bc RS |
2159 | |
2160 | /* Don't print more elements than the specified maximum. */ | |
42ac1ed4 GM |
2161 | if (NATNUMP (Vprint_length) |
2162 | && XFASTINT (Vprint_length) < size) | |
2163 | size = XFASTINT (Vprint_length); | |
a40384bc | 2164 | |
ca0569ad RS |
2165 | for (i = 0; i < size; i++) |
2166 | { | |
2167 | if (i) PRINTCHAR (' '); | |
2168 | tem = XVECTOR (obj)->contents[i]; | |
0f25ecc6 | 2169 | print_object (tem, printcharfun, escapeflag); |
ca0569ad | 2170 | } |
d6ac884e KH |
2171 | if (size < real_size) |
2172 | strout (" ...", 4, 4, printcharfun, 0); | |
38010d50 | 2173 | } |
ca0569ad RS |
2174 | PRINTCHAR (']'); |
2175 | } | |
2176 | break; | |
2177 | ||
ca0569ad | 2178 | case Lisp_Misc: |
5db20f08 | 2179 | switch (XMISCTYPE (obj)) |
38010d50 | 2180 | { |
00d76abc | 2181 | case Lisp_Misc_Marker: |
dc2a0b79 | 2182 | strout ("#<marker ", -1, -1, printcharfun, 0); |
087e3c46 KH |
2183 | /* Do you think this is necessary? */ |
2184 | if (XMARKER (obj)->insertion_type != 0) | |
210ebd3d | 2185 | strout ("(moves after insertion) ", -1, -1, printcharfun, 0); |
cd3587c1 | 2186 | if (! XMARKER (obj)->buffer) |
dc2a0b79 | 2187 | strout ("in no buffer", -1, -1, printcharfun, 0); |
ca0569ad RS |
2188 | else |
2189 | { | |
2190 | sprintf (buf, "at %d", marker_position (obj)); | |
dc2a0b79 RS |
2191 | strout (buf, -1, -1, printcharfun, 0); |
2192 | strout (" in ", -1, -1, printcharfun, 0); | |
ca0569ad RS |
2193 | print_string (XMARKER (obj)->buffer->name, printcharfun); |
2194 | } | |
38010d50 | 2195 | PRINTCHAR ('>'); |
908b0ae5 | 2196 | break; |
00d76abc KH |
2197 | |
2198 | case Lisp_Misc_Overlay: | |
dc2a0b79 | 2199 | strout ("#<overlay ", -1, -1, printcharfun, 0); |
cd3587c1 | 2200 | if (! XMARKER (OVERLAY_START (obj))->buffer) |
dc2a0b79 | 2201 | strout ("in no buffer", -1, -1, printcharfun, 0); |
ca0569ad RS |
2202 | else |
2203 | { | |
2204 | sprintf (buf, "from %d to %d in ", | |
2205 | marker_position (OVERLAY_START (obj)), | |
2206 | marker_position (OVERLAY_END (obj))); | |
dc2a0b79 | 2207 | strout (buf, -1, -1, printcharfun, 0); |
ca0569ad RS |
2208 | print_string (XMARKER (OVERLAY_START (obj))->buffer->name, |
2209 | printcharfun); | |
2210 | } | |
2211 | PRINTCHAR ('>'); | |
908b0ae5 | 2212 | break; |
00d76abc KH |
2213 | |
2214 | /* Remaining cases shouldn't happen in normal usage, but let's print | |
2215 | them anyway for the benefit of the debugger. */ | |
2216 | case Lisp_Misc_Free: | |
dc2a0b79 | 2217 | strout ("#<misc free cell>", -1, -1, printcharfun, 0); |
00d76abc KH |
2218 | break; |
2219 | ||
2220 | case Lisp_Misc_Intfwd: | |
474f84d9 | 2221 | sprintf (buf, "#<intfwd to %ld>", (long) *XINTFWD (obj)->intvar); |
dc2a0b79 | 2222 | strout (buf, -1, -1, printcharfun, 0); |
00d76abc KH |
2223 | break; |
2224 | ||
2225 | case Lisp_Misc_Boolfwd: | |
2226 | sprintf (buf, "#<boolfwd to %s>", | |
2227 | (*XBOOLFWD (obj)->boolvar ? "t" : "nil")); | |
dc2a0b79 | 2228 | strout (buf, -1, -1, printcharfun, 0); |
00d76abc KH |
2229 | break; |
2230 | ||
2231 | case Lisp_Misc_Objfwd: | |
dc2a0b79 | 2232 | strout ("#<objfwd to ", -1, -1, printcharfun, 0); |
0f25ecc6 | 2233 | print_object (*XOBJFWD (obj)->objvar, printcharfun, escapeflag); |
00d76abc KH |
2234 | PRINTCHAR ('>'); |
2235 | break; | |
2236 | ||
2237 | case Lisp_Misc_Buffer_Objfwd: | |
dc2a0b79 | 2238 | strout ("#<buffer_objfwd to ", -1, -1, printcharfun, 0); |
f6cd0527 GM |
2239 | print_object (PER_BUFFER_VALUE (current_buffer, |
2240 | XBUFFER_OBJFWD (obj)->offset), | |
c3279ad4 | 2241 | printcharfun, escapeflag); |
3ac613c1 KH |
2242 | PRINTCHAR ('>'); |
2243 | break; | |
2244 | ||
fb917148 | 2245 | case Lisp_Misc_Kboard_Objfwd: |
dc2a0b79 | 2246 | strout ("#<kboard_objfwd to ", -1, -1, printcharfun, 0); |
cd3587c1 AS |
2247 | print_object (*(Lisp_Object *) ((char *) current_kboard |
2248 | + XKBOARD_OBJFWD (obj)->offset), | |
c3279ad4 | 2249 | printcharfun, escapeflag); |
00d76abc KH |
2250 | PRINTCHAR ('>'); |
2251 | break; | |
2252 | ||
2253 | case Lisp_Misc_Buffer_Local_Value: | |
dc2a0b79 | 2254 | strout ("#<buffer_local_value ", -1, -1, printcharfun, 0); |
67ee9f6e SM |
2255 | if (XBUFFER_LOCAL_VALUE (obj)->local_if_set) |
2256 | strout ("[local-if-set] ", -1, -1, printcharfun, 0); | |
dc2a0b79 | 2257 | strout ("[realvalue] ", -1, -1, printcharfun, 0); |
0f25ecc6 RS |
2258 | print_object (XBUFFER_LOCAL_VALUE (obj)->realvalue, |
2259 | printcharfun, escapeflag); | |
03153771 RS |
2260 | if (XBUFFER_LOCAL_VALUE (obj)->found_for_buffer) |
2261 | strout ("[local in buffer] ", -1, -1, printcharfun, 0); | |
2262 | else | |
2263 | strout ("[buffer] ", -1, -1, printcharfun, 0); | |
0f25ecc6 RS |
2264 | print_object (XBUFFER_LOCAL_VALUE (obj)->buffer, |
2265 | printcharfun, escapeflag); | |
03153771 RS |
2266 | if (XBUFFER_LOCAL_VALUE (obj)->check_frame) |
2267 | { | |
2268 | if (XBUFFER_LOCAL_VALUE (obj)->found_for_frame) | |
2269 | strout ("[local in frame] ", -1, -1, printcharfun, 0); | |
2270 | else | |
2271 | strout ("[frame] ", -1, -1, printcharfun, 0); | |
0f25ecc6 RS |
2272 | print_object (XBUFFER_LOCAL_VALUE (obj)->frame, |
2273 | printcharfun, escapeflag); | |
03153771 | 2274 | } |
dc2a0b79 | 2275 | strout ("[alist-elt] ", -1, -1, printcharfun, 0); |
94b342ce | 2276 | print_object (XCAR (XBUFFER_LOCAL_VALUE (obj)->cdr), |
0f25ecc6 | 2277 | printcharfun, escapeflag); |
dc2a0b79 | 2278 | strout ("[default-value] ", -1, -1, printcharfun, 0); |
94b342ce | 2279 | print_object (XCDR (XBUFFER_LOCAL_VALUE (obj)->cdr), |
0f25ecc6 | 2280 | printcharfun, escapeflag); |
00d76abc KH |
2281 | PRINTCHAR ('>'); |
2282 | break; | |
2283 | ||
c069fee4 KS |
2284 | case Lisp_Misc_Save_Value: |
2285 | strout ("#<save_value ", -1, -1, printcharfun, 0); | |
44455197 | 2286 | sprintf(buf, "ptr=0x%08lx int=%d", |
c069fee4 KS |
2287 | (unsigned long) XSAVE_VALUE (obj)->pointer, |
2288 | XSAVE_VALUE (obj)->integer); | |
2289 | strout (buf, -1, -1, printcharfun, 0); | |
2290 | PRINTCHAR ('>'); | |
2291 | break; | |
2292 | ||
00d76abc KH |
2293 | default: |
2294 | goto badtype; | |
e0f93814 | 2295 | } |
00d76abc | 2296 | break; |
ca0569ad RS |
2297 | |
2298 | default: | |
00d76abc | 2299 | badtype: |
ca0569ad RS |
2300 | { |
2301 | /* We're in trouble if this happens! | |
2302 | Probably should just abort () */ | |
dc2a0b79 | 2303 | strout ("#<EMACS BUG: INVALID DATATYPE ", -1, -1, printcharfun, 0); |
00d76abc | 2304 | if (MISCP (obj)) |
5db20f08 | 2305 | sprintf (buf, "(MISC 0x%04x)", (int) XMISCTYPE (obj)); |
00d76abc KH |
2306 | else if (VECTORLIKEP (obj)) |
2307 | sprintf (buf, "(PVEC 0x%08x)", (int) XVECTOR (obj)->size); | |
2308 | else | |
2309 | sprintf (buf, "(0x%02x)", (int) XTYPE (obj)); | |
dc2a0b79 | 2310 | strout (buf, -1, -1, printcharfun, 0); |
ca0569ad | 2311 | strout (" Save your buffers immediately and please report this bug>", |
dc2a0b79 | 2312 | -1, -1, printcharfun, 0); |
ca0569ad | 2313 | } |
38010d50 JB |
2314 | } |
2315 | ||
2316 | print_depth--; | |
2317 | } | |
2318 | \f | |
7651e1f5 RS |
2319 | |
2320 | /* Print a description of INTERVAL using PRINTCHARFUN. | |
2321 | This is part of printing a string that has text properties. */ | |
2322 | ||
2323 | void | |
2324 | print_interval (interval, printcharfun) | |
2325 | INTERVAL interval; | |
2326 | Lisp_Object printcharfun; | |
2327 | { | |
71ea13cb KH |
2328 | if (NILP (interval->plist)) |
2329 | return; | |
30503c0b | 2330 | PRINTCHAR (' '); |
0f25ecc6 | 2331 | print_object (make_number (interval->position), printcharfun, 1); |
7651e1f5 | 2332 | PRINTCHAR (' '); |
0f25ecc6 | 2333 | print_object (make_number (interval->position + LENGTH (interval)), |
cd3587c1 | 2334 | printcharfun, 1); |
7651e1f5 | 2335 | PRINTCHAR (' '); |
0f25ecc6 | 2336 | print_object (interval->plist, printcharfun, 1); |
7651e1f5 RS |
2337 | } |
2338 | ||
7651e1f5 | 2339 | \f |
38010d50 JB |
2340 | void |
2341 | syms_of_print () | |
2342 | { | |
d9c21094 RS |
2343 | Qtemp_buffer_setup_hook = intern ("temp-buffer-setup-hook"); |
2344 | staticpro (&Qtemp_buffer_setup_hook); | |
2345 | ||
38010d50 | 2346 | DEFVAR_LISP ("standard-output", &Vstandard_output, |
8c1a1077 PJ |
2347 | doc: /* Output stream `print' uses by default for outputting a character. |
2348 | This may be any function of one argument. | |
2349 | It may also be a buffer (output is inserted before point) | |
2350 | or a marker (output is inserted and the marker is advanced) | |
2351 | or the symbol t (output appears in the echo area). */); | |
38010d50 JB |
2352 | Vstandard_output = Qt; |
2353 | Qstandard_output = intern ("standard-output"); | |
2354 | staticpro (&Qstandard_output); | |
2355 | ||
38010d50 | 2356 | DEFVAR_LISP ("float-output-format", &Vfloat_output_format, |
8c1a1077 PJ |
2357 | doc: /* The format descriptor string used to print floats. |
2358 | This is a %-spec like those accepted by `printf' in C, | |
2359 | but with some restrictions. It must start with the two characters `%.'. | |
2360 | After that comes an integer precision specification, | |
2361 | and then a letter which controls the format. | |
2362 | The letters allowed are `e', `f' and `g'. | |
2363 | Use `e' for exponential notation \"DIG.DIGITSeEXPT\" | |
2364 | Use `f' for decimal point notation \"DIGITS.DIGITS\". | |
2365 | Use `g' to choose the shorter of those two formats for the number at hand. | |
2366 | The precision in any of these cases is the number of digits following | |
2367 | the decimal point. With `f', a precision of 0 means to omit the | |
2368 | decimal point. 0 is not allowed with `e' or `g'. | |
2369 | ||
2370 | A value of nil means to use the shortest notation | |
2371 | that represents the number without losing information. */); | |
38010d50 JB |
2372 | Vfloat_output_format = Qnil; |
2373 | Qfloat_output_format = intern ("float-output-format"); | |
2374 | staticpro (&Qfloat_output_format); | |
38010d50 JB |
2375 | |
2376 | DEFVAR_LISP ("print-length", &Vprint_length, | |
8c1a1077 PJ |
2377 | doc: /* Maximum length of list to print before abbreviating. |
2378 | A value of nil means no limit. See also `eval-expression-print-length'. */); | |
38010d50 JB |
2379 | Vprint_length = Qnil; |
2380 | ||
2381 | DEFVAR_LISP ("print-level", &Vprint_level, | |
8c1a1077 PJ |
2382 | doc: /* Maximum depth of list nesting to print before abbreviating. |
2383 | A value of nil means no limit. See also `eval-expression-print-level'. */); | |
38010d50 JB |
2384 | Vprint_level = Qnil; |
2385 | ||
2386 | DEFVAR_BOOL ("print-escape-newlines", &print_escape_newlines, | |
8c1a1077 PJ |
2387 | doc: /* Non-nil means print newlines in strings as `\\n'. |
2388 | Also print formfeeds as `\\f'. */); | |
38010d50 JB |
2389 | print_escape_newlines = 0; |
2390 | ||
38940e93 | 2391 | DEFVAR_BOOL ("print-escape-nonascii", &print_escape_nonascii, |
8c1a1077 PJ |
2392 | doc: /* Non-nil means print unibyte non-ASCII chars in strings as \\OOO. |
2393 | \(OOO is the octal representation of the character code.) | |
249c0f71 RS |
2394 | Only single-byte characters are affected, and only in `prin1'. |
2395 | When the output goes in a multibyte buffer, this feature is | |
2396 | enabled regardless of the value of the variable. */); | |
38940e93 RS |
2397 | print_escape_nonascii = 0; |
2398 | ||
835d0be6 | 2399 | DEFVAR_BOOL ("print-escape-multibyte", &print_escape_multibyte, |
8c1a1077 PJ |
2400 | doc: /* Non-nil means print multibyte characters in strings as \\xXXXX. |
2401 | \(XXXX is the hex representation of the character code.) | |
2402 | This affects only `prin1'. */); | |
835d0be6 RS |
2403 | print_escape_multibyte = 0; |
2404 | ||
2f100b5c | 2405 | DEFVAR_BOOL ("print-quoted", &print_quoted, |
8c1a1077 | 2406 | doc: /* Non-nil means print quoted forms with reader syntax. |
db75cb5f | 2407 | I.e., (quote foo) prints as 'foo, (function foo) as #'foo. */); |
2f100b5c EN |
2408 | print_quoted = 0; |
2409 | ||
e0f69431 | 2410 | DEFVAR_LISP ("print-gensym", &Vprint_gensym, |
8c1a1077 PJ |
2411 | doc: /* Non-nil means print uninterned symbols so they will read as uninterned. |
2412 | I.e., the value of (make-symbol \"foobar\") prints as #:foobar. | |
2413 | When the uninterned symbol appears within a recursive data structure, | |
2414 | and the symbol appears more than once, in addition use the #N# and #N= | |
2415 | constructs as needed, so that multiple references to the same symbol are | |
2416 | shared once again when the text is read back. */); | |
e0f69431 RS |
2417 | Vprint_gensym = Qnil; |
2418 | ||
0f25ecc6 | 2419 | DEFVAR_LISP ("print-circle", &Vprint_circle, |
8c1a1077 PJ |
2420 | doc: /* *Non-nil means print recursive structures using #N= and #N# syntax. |
2421 | If nil, printing proceeds recursively and may lead to | |
2422 | `max-lisp-eval-depth' being exceeded or an error may occur: | |
2423 | \"Apparently circular structure being printed.\" Also see | |
2424 | `print-length' and `print-level'. | |
2425 | If non-nil, shared substructures anywhere in the structure are printed | |
2426 | with `#N=' before the first occurrence (in the order of the print | |
2427 | representation) and `#N#' in place of each subsequent occurrence, | |
2428 | where N is a positive decimal integer. */); | |
0f25ecc6 RS |
2429 | Vprint_circle = Qnil; |
2430 | ||
2431 | DEFVAR_LISP ("print-continuous-numbering", &Vprint_continuous_numbering, | |
8c1a1077 PJ |
2432 | doc: /* *Non-nil means number continuously across print calls. |
2433 | This affects the numbers printed for #N= labels and #M# references. | |
2434 | See also `print-circle', `print-gensym', and `print-number-table'. | |
2435 | This variable should not be set with `setq'; bind it with a `let' instead. */); | |
0f25ecc6 RS |
2436 | Vprint_continuous_numbering = Qnil; |
2437 | ||
2438 | DEFVAR_LISP ("print-number-table", &Vprint_number_table, | |
8c1a1077 PJ |
2439 | doc: /* A vector used internally to produce `#N=' labels and `#N#' references. |
2440 | The Lisp printer uses this vector to detect Lisp objects referenced more | |
e6d4cddd RS |
2441 | than once. |
2442 | ||
2443 | When you bind `print-continuous-numbering' to t, you should probably | |
2444 | also bind `print-number-table' to nil. This ensures that the value of | |
2445 | `print-number-table' can be garbage-collected once the printing is | |
2446 | done. If all elements of `print-number-table' are nil, it means that | |
2447 | the printing done so far has not found any shared structure or objects | |
2448 | that need to be recorded in the table. */); | |
0f25ecc6 | 2449 | Vprint_number_table = Qnil; |
081e0581 | 2450 | |
71ea13cb KH |
2451 | DEFVAR_LISP ("print-charset-text-property", &Vprint_charset_text_property, |
2452 | doc: /* A flag to control printing of `charset' text property on printing a string. | |
2453 | The value must be nil, t, or `default'. | |
2454 | ||
2455 | If the value is nil, don't print the text property `charset'. | |
2456 | ||
2457 | If the value is t, always print the text property `charset'. | |
2458 | ||
2459 | If the value is `default', print the text property `charset' only when | |
2460 | the value is different from what is guessed in the current charset | |
dedbd91c | 2461 | priorities. */); |
71ea13cb KH |
2462 | Vprint_charset_text_property = Qdefault; |
2463 | ||
38010d50 JB |
2464 | /* prin1_to_string_buffer initialized in init_buffer_once in buffer.c */ |
2465 | staticpro (&Vprin1_to_string_buffer); | |
2466 | ||
2467 | defsubr (&Sprin1); | |
2468 | defsubr (&Sprin1_to_string); | |
113620cc | 2469 | defsubr (&Serror_message_string); |
38010d50 JB |
2470 | defsubr (&Sprinc); |
2471 | defsubr (&Sprint); | |
2472 | defsubr (&Sterpri); | |
2473 | defsubr (&Swrite_char); | |
2474 | defsubr (&Sexternal_debugging_output); | |
6b61353c KH |
2475 | #ifdef WITH_REDIRECT_DEBUGGING_OUTPUT |
2476 | defsubr (&Sredirect_debugging_output); | |
2477 | #endif | |
38010d50 JB |
2478 | |
2479 | Qexternal_debugging_output = intern ("external-debugging-output"); | |
2480 | staticpro (&Qexternal_debugging_output); | |
2481 | ||
2f100b5c EN |
2482 | Qprint_escape_newlines = intern ("print-escape-newlines"); |
2483 | staticpro (&Qprint_escape_newlines); | |
2484 | ||
835d0be6 RS |
2485 | Qprint_escape_multibyte = intern ("print-escape-multibyte"); |
2486 | staticpro (&Qprint_escape_multibyte); | |
2487 | ||
2488 | Qprint_escape_nonascii = intern ("print-escape-nonascii"); | |
2489 | staticpro (&Qprint_escape_nonascii); | |
2490 | ||
71ea13cb KH |
2491 | print_prune_charset_plist = Qnil; |
2492 | staticpro (&print_prune_charset_plist); | |
2493 | ||
38010d50 | 2494 | defsubr (&Swith_output_to_temp_buffer); |
38010d50 | 2495 | } |
6b61353c KH |
2496 | |
2497 | /* arch-tag: bc797170-94ae-41de-86e3-75e20f8f7a39 | |
2498 | (do not change this comment) */ |