Commit | Line | Data |
---|---|---|
38010d50 | 1 | /* Lisp object printing and output streams. |
68c45bf0 | 2 | Copyright (C) 1985, 86, 88, 93, 94, 95, 97, 98, 1999 |
9dffd511 | 3 | Free Software Foundation, Inc. |
38010d50 JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
4746118a | 9 | the Free Software Foundation; either version 2, or (at your option) |
38010d50 JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
38010d50 JB |
21 | |
22 | ||
18160b98 | 23 | #include <config.h> |
38010d50 | 24 | #include <stdio.h> |
38010d50 | 25 | #include "lisp.h" |
38010d50 | 26 | #include "buffer.h" |
087e3c46 | 27 | #include "charset.h" |
2538fae4 | 28 | #include "keyboard.h" |
0137dbf7 | 29 | #include "frame.h" |
38010d50 JB |
30 | #include "window.h" |
31 | #include "process.h" | |
32 | #include "dispextern.h" | |
33 | #include "termchar.h" | |
7651e1f5 | 34 | #include "intervals.h" |
7651e1f5 | 35 | |
38010d50 JB |
36 | Lisp_Object Vstandard_output, Qstandard_output; |
37 | ||
d9c21094 RS |
38 | Lisp_Object Qtemp_buffer_setup_hook; |
39 | ||
2f100b5c EN |
40 | /* These are used to print like we read. */ |
41 | extern Lisp_Object Qbackquote, Qcomma, Qcomma_at, Qcomma_dot, Qfunction; | |
42 | ||
38010d50 | 43 | Lisp_Object Vfloat_output_format, Qfloat_output_format; |
f356c3fb PE |
44 | |
45 | /* Work around a problem that happens because math.h on hpux 7 | |
46 | defines two static variables--which, in Emacs, are not really static, | |
47 | because `static' is defined as nothing. The problem is that they are | |
48 | defined both here and in lread.c. | |
49 | These macros prevent the name conflict. */ | |
50 | #if defined (HPUX) && !defined (HPUX8) | |
51 | #define _MAXLDBL print_maxldbl | |
52 | #define _NMAXLDBL print_nmaxldbl | |
53 | #endif | |
54 | ||
55 | #include <math.h> | |
56 | ||
57 | #if STDC_HEADERS | |
58 | #include <float.h> | |
f356c3fb PE |
59 | #endif |
60 | ||
61 | /* Default to values appropriate for IEEE floating point. */ | |
62 | #ifndef FLT_RADIX | |
63 | #define FLT_RADIX 2 | |
64 | #endif | |
65 | #ifndef DBL_MANT_DIG | |
66 | #define DBL_MANT_DIG 53 | |
67 | #endif | |
68 | #ifndef DBL_DIG | |
69 | #define DBL_DIG 15 | |
70 | #endif | |
b0a1044b PE |
71 | #ifndef DBL_MIN |
72 | #define DBL_MIN 2.2250738585072014e-308 | |
73 | #endif | |
74 | ||
75 | #ifdef DBL_MIN_REPLACEMENT | |
76 | #undef DBL_MIN | |
77 | #define DBL_MIN DBL_MIN_REPLACEMENT | |
78 | #endif | |
f356c3fb PE |
79 | |
80 | /* Define DOUBLE_DIGITS_BOUND, an upper bound on the number of decimal digits | |
81 | needed to express a float without losing information. | |
82 | The general-case formula is valid for the usual case, IEEE floating point, | |
83 | but many compilers can't optimize the formula to an integer constant, | |
84 | so make a special case for it. */ | |
85 | #if FLT_RADIX == 2 && DBL_MANT_DIG == 53 | |
86 | #define DOUBLE_DIGITS_BOUND 17 /* IEEE floating point */ | |
87 | #else | |
88 | #define DOUBLE_DIGITS_BOUND ((int) ceil (log10 (pow (FLT_RADIX, DBL_MANT_DIG)))) | |
89 | #endif | |
90 | ||
38010d50 JB |
91 | /* Avoid actual stack overflow in print. */ |
92 | int print_depth; | |
93 | ||
ec838c39 RS |
94 | /* Detect most circularities to print finite output. */ |
95 | #define PRINT_CIRCLE 200 | |
96 | Lisp_Object being_printed[PRINT_CIRCLE]; | |
97 | ||
6fec5601 RS |
98 | /* When printing into a buffer, first we put the text in this |
99 | block, then insert it all at once. */ | |
100 | char *print_buffer; | |
101 | ||
102 | /* Size allocated in print_buffer. */ | |
103 | int print_buffer_size; | |
dc2a0b79 | 104 | /* Chars stored in print_buffer. */ |
6fec5601 | 105 | int print_buffer_pos; |
dc2a0b79 RS |
106 | /* Bytes stored in print_buffer. */ |
107 | int print_buffer_pos_byte; | |
6fec5601 | 108 | |
38010d50 JB |
109 | /* Maximum length of list to print in full; noninteger means |
110 | effectively infinity */ | |
111 | ||
112 | Lisp_Object Vprint_length; | |
113 | ||
114 | /* Maximum depth of list to print in full; noninteger means | |
115 | effectively infinity. */ | |
116 | ||
117 | Lisp_Object Vprint_level; | |
118 | ||
119 | /* Nonzero means print newlines in strings as \n. */ | |
120 | ||
121 | int print_escape_newlines; | |
122 | ||
38940e93 RS |
123 | /* Nonzero means to print single-byte non-ascii characters in strings as |
124 | octal escapes. */ | |
125 | ||
126 | int print_escape_nonascii; | |
127 | ||
835d0be6 RS |
128 | /* Nonzero means to print multibyte characters in strings as hex escapes. */ |
129 | ||
130 | int print_escape_multibyte; | |
131 | ||
132 | Lisp_Object Qprint_escape_newlines; | |
133 | Lisp_Object Qprint_escape_multibyte, Qprint_escape_nonascii; | |
134 | ||
2f100b5c EN |
135 | /* Nonzero means print (quote foo) forms as 'foo, etc. */ |
136 | ||
137 | int print_quoted; | |
138 | ||
0f25ecc6 | 139 | /* Non-nil means print #: before uninterned symbols. */ |
081e0581 | 140 | |
e0f69431 | 141 | Lisp_Object Vprint_gensym; |
081e0581 | 142 | |
0f25ecc6 | 143 | /* Non-nil means print recursive structures using #n= and #n# syntax. */ |
081e0581 | 144 | |
0f25ecc6 RS |
145 | Lisp_Object Vprint_circle; |
146 | ||
147 | /* Non-nil means keep continuous number for #n= and #n# syntax | |
148 | between several print functions. */ | |
149 | ||
150 | Lisp_Object Vprint_continuous_numbering; | |
151 | ||
152 | /* Vprint_number_table is a vector like [OBJ1 STAT1 OBJ2 STAT2 ...], | |
153 | where OBJn are objects going to be printed, and STATn are their status, | |
154 | which may be different meanings during process. See the comments of | |
155 | the functions print and print_preprocess for details. | |
156 | print_number_index keeps the last position the next object should be added, | |
157 | twice of which is the actual vector position in Vprint_number_table. */ | |
158 | int print_number_index; | |
159 | Lisp_Object Vprint_number_table; | |
160 | ||
161 | /* PRINT_NUMBER_OBJECT returns the I'th object in Vprint_number_table TABLE. | |
162 | PRINT_NUMBER_STATUS returns the status of the I'th object in TABLE. | |
163 | See the comment of the variable Vprint_number_table. */ | |
164 | #define PRINT_NUMBER_OBJECT(table,i) XVECTOR ((table))->contents[(i) * 2] | |
165 | #define PRINT_NUMBER_STATUS(table,i) XVECTOR ((table))->contents[(i) * 2 + 1] | |
2f100b5c | 166 | |
5259c737 | 167 | /* Nonzero means print newline to stdout before next minibuffer message. |
38010d50 JB |
168 | Defined in xdisp.c */ |
169 | ||
170 | extern int noninteractive_need_newline; | |
5259c737 | 171 | |
aec2b95b RS |
172 | extern int minibuffer_auto_raise; |
173 | ||
38010d50 JB |
174 | #ifdef MAX_PRINT_CHARS |
175 | static int print_chars; | |
176 | static int max_print; | |
177 | #endif /* MAX_PRINT_CHARS */ | |
7651e1f5 RS |
178 | |
179 | void print_interval (); | |
38010d50 | 180 | |
38010d50 | 181 | \f |
eb8c3be9 | 182 | /* Low level output routines for characters and strings */ |
38010d50 JB |
183 | |
184 | /* Lisp functions to do output using a stream | |
081e0581 EN |
185 | must have the stream in a variable called printcharfun |
186 | and must start with PRINTPREPARE, end with PRINTFINISH, | |
187 | and use PRINTDECLARE to declare common variables. | |
188 | Use PRINTCHAR to output one character, | |
0788646c GM |
189 | or call strout to output a block of characters. */ |
190 | ||
191 | #define PRINTDECLARE \ | |
192 | struct buffer *old = current_buffer; \ | |
193 | int old_point = -1, start_point; \ | |
194 | int old_point_byte, start_point_byte; \ | |
195 | int specpdl_count = specpdl_ptr - specpdl; \ | |
196 | int free_print_buffer = 0; \ | |
197 | int multibyte = !NILP (current_buffer->enable_multibyte_characters); \ | |
081e0581 EN |
198 | Lisp_Object original |
199 | ||
0788646c GM |
200 | #define PRINTPREPARE \ |
201 | original = printcharfun; \ | |
202 | if (NILP (printcharfun)) printcharfun = Qt; \ | |
203 | if (BUFFERP (printcharfun)) \ | |
204 | { \ | |
205 | if (XBUFFER (printcharfun) != current_buffer) \ | |
206 | Fset_buffer (printcharfun); \ | |
207 | printcharfun = Qnil; \ | |
208 | } \ | |
209 | if (MARKERP (printcharfun)) \ | |
210 | { \ | |
211 | if (!(XMARKER (original)->buffer)) \ | |
212 | error ("Marker does not point anywhere"); \ | |
213 | if (XMARKER (original)->buffer != current_buffer) \ | |
214 | set_buffer_internal (XMARKER (original)->buffer); \ | |
215 | old_point = PT; \ | |
216 | old_point_byte = PT_BYTE; \ | |
217 | SET_PT_BOTH (marker_position (printcharfun), \ | |
218 | marker_byte_position (printcharfun)); \ | |
219 | start_point = PT; \ | |
220 | start_point_byte = PT_BYTE; \ | |
221 | printcharfun = Qnil; \ | |
222 | } \ | |
223 | if (NILP (printcharfun)) \ | |
224 | { \ | |
225 | Lisp_Object string; \ | |
226 | if (NILP (current_buffer->enable_multibyte_characters) \ | |
227 | && ! print_escape_multibyte) \ | |
228 | specbind (Qprint_escape_multibyte, Qt); \ | |
229 | if (! NILP (current_buffer->enable_multibyte_characters) \ | |
230 | && ! print_escape_nonascii) \ | |
231 | specbind (Qprint_escape_nonascii, Qt); \ | |
232 | if (print_buffer != 0) \ | |
233 | { \ | |
234 | string = make_string_from_bytes (print_buffer, \ | |
235 | print_buffer_pos, \ | |
236 | print_buffer_pos_byte); \ | |
237 | record_unwind_protect (print_unwind, string); \ | |
238 | } \ | |
239 | else \ | |
240 | { \ | |
241 | print_buffer_size = 1000; \ | |
242 | print_buffer = (char *) xmalloc (print_buffer_size); \ | |
243 | free_print_buffer = 1; \ | |
244 | } \ | |
245 | print_buffer_pos = 0; \ | |
246 | print_buffer_pos_byte = 0; \ | |
247 | } \ | |
5494b50f | 248 | if (EQ (printcharfun, Qt) && ! noninteractive) \ |
0f25ecc6 | 249 | setup_echo_area_for_printing (multibyte); |
38010d50 | 250 | |
8a2ab0c6 RS |
251 | #define PRINTFINISH \ |
252 | if (NILP (printcharfun)) \ | |
253 | { \ | |
254 | if (print_buffer_pos != print_buffer_pos_byte \ | |
255 | && NILP (current_buffer->enable_multibyte_characters)) \ | |
256 | { \ | |
257 | unsigned char *temp \ | |
258 | = (unsigned char *) alloca (print_buffer_pos + 1); \ | |
259 | copy_text (print_buffer, temp, print_buffer_pos_byte, \ | |
260 | 1, 0); \ | |
261 | insert_1_both (temp, print_buffer_pos, \ | |
262 | print_buffer_pos, 0, 1, 0); \ | |
263 | } \ | |
264 | else \ | |
265 | insert_1_both (print_buffer, print_buffer_pos, \ | |
266 | print_buffer_pos_byte, 0, 1, 0); \ | |
267 | } \ | |
268 | if (free_print_buffer) \ | |
269 | { \ | |
270 | xfree (print_buffer); \ | |
271 | print_buffer = 0; \ | |
272 | } \ | |
273 | unbind_to (specpdl_count, Qnil); \ | |
274 | if (MARKERP (original)) \ | |
275 | set_marker_both (original, Qnil, PT, PT_BYTE); \ | |
276 | if (old_point >= 0) \ | |
277 | SET_PT_BOTH (old_point + (old_point >= start_point \ | |
278 | ? PT - start_point : 0), \ | |
6ddd6eee RS |
279 | old_point_byte + (old_point_byte >= start_point_byte \ |
280 | ? PT_BYTE - start_point_byte : 0)); \ | |
8a2ab0c6 | 281 | if (old != current_buffer) \ |
0f25ecc6 | 282 | set_buffer_internal (old); |
38010d50 JB |
283 | |
284 | #define PRINTCHAR(ch) printchar (ch, printcharfun) | |
285 | ||
08e8d297 RS |
286 | /* This is used to restore the saved contents of print_buffer |
287 | when there is a recursive call to print. */ | |
0788646c | 288 | |
08e8d297 RS |
289 | static Lisp_Object |
290 | print_unwind (saved_text) | |
291 | Lisp_Object saved_text; | |
292 | { | |
293 | bcopy (XSTRING (saved_text)->data, print_buffer, XSTRING (saved_text)->size); | |
294 | } | |
295 | ||
0788646c GM |
296 | |
297 | /* Print character CH using method FUN. FUN nil means print to | |
298 | print_buffer. FUN t means print to echo area or stdout if | |
299 | non-interactive. If FUN is neither nil nor t, call FUN with CH as | |
300 | argument. */ | |
38010d50 JB |
301 | |
302 | static void | |
303 | printchar (ch, fun) | |
087e3c46 | 304 | unsigned int ch; |
38010d50 JB |
305 | Lisp_Object fun; |
306 | { | |
38010d50 JB |
307 | #ifdef MAX_PRINT_CHARS |
308 | if (max_print) | |
309 | print_chars++; | |
310 | #endif /* MAX_PRINT_CHARS */ | |
38010d50 | 311 | |
0788646c GM |
312 | if (!NILP (fun) && !EQ (fun, Qt)) |
313 | call1 (fun, make_number (ch)); | |
314 | else | |
38010d50 | 315 | { |
19a86a03 KH |
316 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
317 | int len = CHAR_STRING (ch, str); | |
318 | ||
09eddb56 | 319 | QUIT; |
0788646c GM |
320 | |
321 | if (NILP (fun)) | |
9a4d01d8 | 322 | { |
0788646c GM |
323 | if (print_buffer_pos_byte + len >= print_buffer_size) |
324 | print_buffer = (char *) xrealloc (print_buffer, | |
325 | print_buffer_size *= 2); | |
326 | bcopy (str, print_buffer + print_buffer_pos_byte, len); | |
327 | print_buffer_pos += 1; | |
328 | print_buffer_pos_byte += len; | |
9a4d01d8 | 329 | } |
0788646c | 330 | else if (noninteractive) |
1134b854 | 331 | { |
0788646c GM |
332 | fwrite (str, 1, len, stdout); |
333 | noninteractive_need_newline = 1; | |
1134b854 | 334 | } |
0788646c | 335 | else |
d366d2e4 | 336 | { |
0788646c GM |
337 | int multibyte_p |
338 | = !NILP (current_buffer->enable_multibyte_characters); | |
339 | ||
eb7b678b | 340 | setup_echo_area_for_printing (multibyte_p); |
0788646c GM |
341 | insert_char (ch); |
342 | message_dolog (str, len, 0, multibyte_p); | |
d366d2e4 | 343 | } |
38010d50 | 344 | } |
38010d50 JB |
345 | } |
346 | ||
0788646c GM |
347 | |
348 | /* Output SIZE characters, SIZE_BYTE bytes from string PTR using | |
349 | method PRINTCHARFUN. If SIZE < 0, use the string length of PTR for | |
350 | both SIZE and SIZE_BYTE. PRINTCHARFUN nil means output to | |
351 | print_buffer. PRINTCHARFUN t means output to the echo area or to | |
352 | stdout if non-interactive. If neither nil nor t, call Lisp | |
353 | function PRINTCHARFUN for each character printed. MULTIBYTE | |
354 | non-zero means PTR contains multibyte characters. */ | |
355 | ||
38010d50 | 356 | static void |
dc2a0b79 | 357 | strout (ptr, size, size_byte, printcharfun, multibyte) |
38010d50 | 358 | char *ptr; |
dc2a0b79 | 359 | int size, size_byte; |
38010d50 | 360 | Lisp_Object printcharfun; |
dc2a0b79 | 361 | int multibyte; |
38010d50 | 362 | { |
087e3c46 | 363 | if (size < 0) |
dc2a0b79 | 364 | size_byte = size = strlen (ptr); |
087e3c46 | 365 | |
0788646c | 366 | if (NILP (printcharfun)) |
38010d50 | 367 | { |
dc2a0b79 | 368 | if (print_buffer_pos_byte + size_byte > print_buffer_size) |
6fec5601 | 369 | { |
dc2a0b79 | 370 | print_buffer_size = print_buffer_size * 2 + size_byte; |
6fec5601 RS |
371 | print_buffer = (char *) xrealloc (print_buffer, |
372 | print_buffer_size); | |
373 | } | |
dc2a0b79 | 374 | bcopy (ptr, print_buffer + print_buffer_pos_byte, size_byte); |
6fec5601 | 375 | print_buffer_pos += size; |
dc2a0b79 | 376 | print_buffer_pos_byte += size_byte; |
6fec5601 | 377 | |
38010d50 JB |
378 | #ifdef MAX_PRINT_CHARS |
379 | if (max_print) | |
6fec5601 | 380 | print_chars += size; |
38010d50 | 381 | #endif /* MAX_PRINT_CHARS */ |
38010d50 | 382 | } |
7b0cb8a0 | 383 | else if (noninteractive && EQ (printcharfun, Qt)) |
38010d50 | 384 | { |
0788646c GM |
385 | fwrite (ptr, 1, size_byte, stdout); |
386 | noninteractive_need_newline = 1; | |
387 | } | |
388 | else if (EQ (printcharfun, Qt)) | |
389 | { | |
390 | /* Output to echo area. We're trying to avoid a little overhead | |
391 | here, that's the reason we don't call printchar to do the | |
392 | job. */ | |
393 | int i; | |
394 | int multibyte_p | |
395 | = !NILP (current_buffer->enable_multibyte_characters); | |
396 | ||
eb7b678b | 397 | setup_echo_area_for_printing (multibyte_p); |
0788646c GM |
398 | message_dolog (ptr, size_byte, 0, multibyte_p); |
399 | ||
400 | if (size == size_byte) | |
38010d50 | 401 | { |
0788646c GM |
402 | for (i = 0; i < size; ++i) |
403 | insert_char (*ptr++); | |
38010d50 | 404 | } |
0788646c | 405 | else |
38010d50 | 406 | { |
0788646c GM |
407 | int len; |
408 | for (i = 0; i < size_byte; i += len) | |
aec2b95b | 409 | { |
0788646c GM |
410 | int ch = STRING_CHAR_AND_LENGTH (ptr + i, size_byte - i, len); |
411 | insert_char (ch); | |
aec2b95b | 412 | } |
38010d50 | 413 | } |
0788646c GM |
414 | |
415 | #ifdef MAX_PRINT_CHARS | |
416 | if (max_print) | |
417 | print_chars += size; | |
418 | #endif /* MAX_PRINT_CHARS */ | |
419 | } | |
420 | else | |
421 | { | |
422 | /* PRINTCHARFUN is a Lisp function. */ | |
423 | int i = 0; | |
38010d50 | 424 | |
0788646c | 425 | if (size == size_byte) |
4ad8bb20 | 426 | { |
0788646c | 427 | while (i < size_byte) |
4ad8bb20 | 428 | { |
0788646c GM |
429 | int ch = ptr[i++]; |
430 | PRINTCHAR (ch); | |
4ad8bb20 | 431 | } |
4ad8bb20 | 432 | } |
0788646c | 433 | else |
087e3c46 | 434 | { |
0788646c GM |
435 | while (i < size_byte) |
436 | { | |
437 | /* Here, we must convert each multi-byte form to the | |
438 | corresponding character code before handing it to | |
439 | PRINTCHAR. */ | |
440 | int len; | |
441 | int ch = STRING_CHAR_AND_LENGTH (ptr + i, size_byte - i, len); | |
442 | PRINTCHAR (ch); | |
443 | i += len; | |
444 | } | |
087e3c46 | 445 | } |
38010d50 | 446 | } |
38010d50 JB |
447 | } |
448 | ||
449 | /* Print the contents of a string STRING using PRINTCHARFUN. | |
ed2c35ef RS |
450 | It isn't safe to use strout in many cases, |
451 | because printing one char can relocate. */ | |
38010d50 | 452 | |
dc2a0b79 | 453 | static void |
38010d50 JB |
454 | print_string (string, printcharfun) |
455 | Lisp_Object string; | |
456 | Lisp_Object printcharfun; | |
457 | { | |
6fec5601 | 458 | if (EQ (printcharfun, Qt) || NILP (printcharfun)) |
375fcc09 KH |
459 | { |
460 | int chars; | |
461 | ||
462 | if (STRING_MULTIBYTE (string)) | |
463 | chars = XSTRING (string)->size; | |
464 | else if (EQ (printcharfun, Qt) | |
465 | ? ! NILP (buffer_defaults.enable_multibyte_characters) | |
466 | : ! NILP (current_buffer->enable_multibyte_characters)) | |
467 | chars = multibyte_chars_in_text (XSTRING (string)->data, | |
468 | STRING_BYTES (XSTRING (string))); | |
469 | else | |
470 | chars = STRING_BYTES (XSTRING (string)); | |
471 | ||
472 | /* strout is safe for output to a frame (echo area) or to print_buffer. */ | |
473 | strout (XSTRING (string)->data, | |
474 | chars, STRING_BYTES (XSTRING (string)), | |
475 | printcharfun, STRING_MULTIBYTE (string)); | |
476 | } | |
38010d50 JB |
477 | else |
478 | { | |
dc2a0b79 RS |
479 | /* Otherwise, string may be relocated by printing one char. |
480 | So re-fetch the string address for each character. */ | |
38010d50 JB |
481 | int i; |
482 | int size = XSTRING (string)->size; | |
fc932ac6 | 483 | int size_byte = STRING_BYTES (XSTRING (string)); |
38010d50 JB |
484 | struct gcpro gcpro1; |
485 | GCPRO1 (string); | |
dc2a0b79 RS |
486 | if (size == size_byte) |
487 | for (i = 0; i < size; i++) | |
488 | PRINTCHAR (XSTRING (string)->data[i]); | |
489 | else | |
490 | for (i = 0; i < size_byte; i++) | |
491 | { | |
492 | /* Here, we must convert each multi-byte form to the | |
493 | corresponding character code before handing it to PRINTCHAR. */ | |
494 | int len; | |
765fe1d0 KH |
495 | int ch = STRING_CHAR_AND_LENGTH (XSTRING (string)->data + i, |
496 | size_byte - i, len); | |
da1ad4e7 KH |
497 | if (!CHAR_VALID_P (ch, 0)) |
498 | { | |
499 | ch = XSTRING (string)->data[i]; | |
500 | len = 1; | |
501 | } | |
dc2a0b79 RS |
502 | PRINTCHAR (ch); |
503 | i += len; | |
504 | } | |
38010d50 JB |
505 | UNGCPRO; |
506 | } | |
507 | } | |
508 | \f | |
509 | DEFUN ("write-char", Fwrite_char, Swrite_char, 1, 2, 0, | |
3738a371 | 510 | "Output character CHARACTER to stream PRINTCHARFUN.\n\ |
57c9eb68 | 511 | PRINTCHARFUN defaults to the value of `standard-output' (which see).") |
3738a371 EN |
512 | (character, printcharfun) |
513 | Lisp_Object character, printcharfun; | |
38010d50 | 514 | { |
081e0581 | 515 | PRINTDECLARE; |
38010d50 | 516 | |
10eebdbb | 517 | if (NILP (printcharfun)) |
38010d50 | 518 | printcharfun = Vstandard_output; |
3738a371 | 519 | CHECK_NUMBER (character, 0); |
38010d50 | 520 | PRINTPREPARE; |
3738a371 | 521 | PRINTCHAR (XINT (character)); |
38010d50 | 522 | PRINTFINISH; |
3738a371 | 523 | return character; |
38010d50 JB |
524 | } |
525 | ||
dc2a0b79 RS |
526 | /* Used from outside of print.c to print a block of SIZE |
527 | single-byte chars at DATA on the default output stream. | |
38010d50 JB |
528 | Do not use this on the contents of a Lisp string. */ |
529 | ||
dc22f25e | 530 | void |
38010d50 JB |
531 | write_string (data, size) |
532 | char *data; | |
533 | int size; | |
534 | { | |
081e0581 | 535 | PRINTDECLARE; |
38010d50 | 536 | Lisp_Object printcharfun; |
38010d50 JB |
537 | |
538 | printcharfun = Vstandard_output; | |
539 | ||
540 | PRINTPREPARE; | |
dc2a0b79 | 541 | strout (data, size, size, printcharfun, 0); |
38010d50 JB |
542 | PRINTFINISH; |
543 | } | |
544 | ||
dc2a0b79 RS |
545 | /* Used from outside of print.c to print a block of SIZE |
546 | single-byte chars at DATA on a specified stream PRINTCHARFUN. | |
38010d50 JB |
547 | Do not use this on the contents of a Lisp string. */ |
548 | ||
dc22f25e | 549 | void |
38010d50 JB |
550 | write_string_1 (data, size, printcharfun) |
551 | char *data; | |
552 | int size; | |
553 | Lisp_Object printcharfun; | |
554 | { | |
081e0581 | 555 | PRINTDECLARE; |
38010d50 JB |
556 | |
557 | PRINTPREPARE; | |
dc2a0b79 | 558 | strout (data, size, size, printcharfun, 0); |
38010d50 JB |
559 | PRINTFINISH; |
560 | } | |
561 | ||
562 | ||
38010d50 JB |
563 | void |
564 | temp_output_buffer_setup (bufname) | |
565 | char *bufname; | |
566 | { | |
d9c21094 | 567 | int count = specpdl_ptr - specpdl; |
38010d50 JB |
568 | register struct buffer *old = current_buffer; |
569 | register Lisp_Object buf; | |
570 | ||
d9c21094 RS |
571 | record_unwind_protect (set_buffer_if_live, Fcurrent_buffer ()); |
572 | ||
38010d50 JB |
573 | Fset_buffer (Fget_buffer_create (build_string (bufname))); |
574 | ||
2a1c968a | 575 | current_buffer->directory = old->directory; |
38010d50 | 576 | current_buffer->read_only = Qnil; |
c5c6d57c KH |
577 | current_buffer->filename = Qnil; |
578 | current_buffer->undo_list = Qt; | |
579 | current_buffer->overlays_before = Qnil; | |
580 | current_buffer->overlays_after = Qnil; | |
581 | current_buffer->enable_multibyte_characters | |
582 | = buffer_defaults.enable_multibyte_characters; | |
38010d50 | 583 | Ferase_buffer (); |
633307b5 | 584 | XSETBUFFER (buf, current_buffer); |
38010d50 | 585 | |
fd760946 GM |
586 | if (!NILP (Vrun_hooks)) |
587 | call1 (Vrun_hooks, Qtemp_buffer_setup_hook); | |
d9c21094 RS |
588 | |
589 | unbind_to (count, Qnil); | |
590 | ||
591 | specbind (Qstandard_output, buf); | |
38010d50 JB |
592 | } |
593 | ||
594 | Lisp_Object | |
595 | internal_with_output_to_temp_buffer (bufname, function, args) | |
596 | char *bufname; | |
dfcf069d | 597 | Lisp_Object (*function) P_ ((Lisp_Object)); |
38010d50 JB |
598 | Lisp_Object args; |
599 | { | |
600 | int count = specpdl_ptr - specpdl; | |
601 | Lisp_Object buf, val; | |
0ab39c81 | 602 | struct gcpro gcpro1; |
38010d50 | 603 | |
0ab39c81 | 604 | GCPRO1 (args); |
38010d50 JB |
605 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); |
606 | temp_output_buffer_setup (bufname); | |
607 | buf = Vstandard_output; | |
0ab39c81 | 608 | UNGCPRO; |
38010d50 JB |
609 | |
610 | val = (*function) (args); | |
611 | ||
0ab39c81 | 612 | GCPRO1 (val); |
38010d50 | 613 | temp_output_buffer_show (buf); |
0ab39c81 | 614 | UNGCPRO; |
38010d50 JB |
615 | |
616 | return unbind_to (count, val); | |
617 | } | |
618 | ||
619 | DEFUN ("with-output-to-temp-buffer", Fwith_output_to_temp_buffer, Swith_output_to_temp_buffer, | |
620 | 1, UNEVALLED, 0, | |
621 | "Bind `standard-output' to buffer BUFNAME, eval BODY, then show that buffer.\n\ | |
622 | The buffer is cleared out initially, and marked as unmodified when done.\n\ | |
623 | All output done by BODY is inserted in that buffer by default.\n\ | |
624 | The buffer is displayed in another window, but not selected.\n\ | |
625 | The value of the last form in BODY is returned.\n\ | |
d9c21094 RS |
626 | If BODY does not finish normally, the buffer BUFNAME is not displayed.\n\ |
627 | \n\ | |
628 | The hook `temp-buffer-setup-hook' is run before BODY,\n\ | |
629 | with the buffer BUFNAME temporarily current.\n\ | |
630 | The hook `temp-buffer-show-hook' is run after the buffer is displayed,\n\ | |
631 | with the buffer temporarily current, and the window that was used\n\ | |
632 | to display it temporarily selected.\n\ | |
633 | \n\ | |
483288d7 | 634 | If variable `temp-buffer-show-function' is non-nil, call it at the end\n\ |
451f7df8 DL |
635 | to get the buffer displayed instead of just displaying the non-selected\n\ |
636 | buffer and calling the hook. It gets one argument, the buffer to display.") | |
38010d50 JB |
637 | (args) |
638 | Lisp_Object args; | |
639 | { | |
640 | struct gcpro gcpro1; | |
641 | Lisp_Object name; | |
642 | int count = specpdl_ptr - specpdl; | |
643 | Lisp_Object buf, val; | |
644 | ||
645 | GCPRO1(args); | |
646 | name = Feval (Fcar (args)); | |
647 | UNGCPRO; | |
648 | ||
649 | CHECK_STRING (name, 0); | |
650 | temp_output_buffer_setup (XSTRING (name)->data); | |
651 | buf = Vstandard_output; | |
652 | ||
653 | val = Fprogn (Fcdr (args)); | |
654 | ||
655 | temp_output_buffer_show (buf); | |
656 | ||
657 | return unbind_to (count, val); | |
658 | } | |
0788646c | 659 | |
38010d50 JB |
660 | \f |
661 | static void print (); | |
0f25ecc6 | 662 | static void print_preprocess (); |
0f25ecc6 | 663 | static void print_preprocess_string (); |
0f25ecc6 | 664 | static void print_object (); |
38010d50 JB |
665 | |
666 | DEFUN ("terpri", Fterpri, Sterpri, 0, 1, 0, | |
57c9eb68 KH |
667 | "Output a newline to stream PRINTCHARFUN.\n\ |
668 | If PRINTCHARFUN is omitted or nil, the value of `standard-output' is used.") | |
38010d50 JB |
669 | (printcharfun) |
670 | Lisp_Object printcharfun; | |
671 | { | |
081e0581 | 672 | PRINTDECLARE; |
38010d50 | 673 | |
10eebdbb | 674 | if (NILP (printcharfun)) |
38010d50 JB |
675 | printcharfun = Vstandard_output; |
676 | PRINTPREPARE; | |
677 | PRINTCHAR ('\n'); | |
678 | PRINTFINISH; | |
679 | return Qt; | |
680 | } | |
681 | ||
682 | DEFUN ("prin1", Fprin1, Sprin1, 1, 2, 0, | |
683 | "Output the printed representation of OBJECT, any Lisp object.\n\ | |
684 | Quoting characters are printed when needed to make output that `read'\n\ | |
685 | can handle, whenever this is possible.\n\ | |
57c9eb68 | 686 | Output stream is PRINTCHARFUN, or value of `standard-output' (which see).") |
3738a371 EN |
687 | (object, printcharfun) |
688 | Lisp_Object object, printcharfun; | |
38010d50 | 689 | { |
081e0581 | 690 | PRINTDECLARE; |
38010d50 JB |
691 | |
692 | #ifdef MAX_PRINT_CHARS | |
693 | max_print = 0; | |
694 | #endif /* MAX_PRINT_CHARS */ | |
10eebdbb | 695 | if (NILP (printcharfun)) |
38010d50 JB |
696 | printcharfun = Vstandard_output; |
697 | PRINTPREPARE; | |
3738a371 | 698 | print (object, printcharfun, 1); |
38010d50 | 699 | PRINTFINISH; |
3738a371 | 700 | return object; |
38010d50 JB |
701 | } |
702 | ||
703 | /* a buffer which is used to hold output being built by prin1-to-string */ | |
704 | Lisp_Object Vprin1_to_string_buffer; | |
705 | ||
706 | DEFUN ("prin1-to-string", Fprin1_to_string, Sprin1_to_string, 1, 2, 0, | |
707 | "Return a string containing the printed representation of OBJECT,\n\ | |
708 | any Lisp object. Quoting characters are used when needed to make output\n\ | |
709 | that `read' can handle, whenever this is possible, unless the optional\n\ | |
710 | second argument NOESCAPE is non-nil.") | |
3738a371 EN |
711 | (object, noescape) |
712 | Lisp_Object object, noescape; | |
38010d50 | 713 | { |
081e0581 EN |
714 | PRINTDECLARE; |
715 | Lisp_Object printcharfun; | |
2a42e8f6 KH |
716 | struct gcpro gcpro1, gcpro2; |
717 | Lisp_Object tem; | |
718 | ||
719 | /* Save and restore this--we are altering a buffer | |
720 | but we don't want to deactivate the mark just for that. | |
721 | No need for specbind, since errors deactivate the mark. */ | |
722 | tem = Vdeactivate_mark; | |
723 | GCPRO2 (object, tem); | |
38010d50 JB |
724 | |
725 | printcharfun = Vprin1_to_string_buffer; | |
726 | PRINTPREPARE; | |
3738a371 | 727 | print (object, printcharfun, NILP (noescape)); |
38010d50 JB |
728 | /* Make Vprin1_to_string_buffer be the default buffer after PRINTFINSH */ |
729 | PRINTFINISH; | |
730 | set_buffer_internal (XBUFFER (Vprin1_to_string_buffer)); | |
3738a371 | 731 | object = Fbuffer_string (); |
38010d50 | 732 | |
38010d50 JB |
733 | Ferase_buffer (); |
734 | set_buffer_internal (old); | |
2a42e8f6 KH |
735 | |
736 | Vdeactivate_mark = tem; | |
38010d50 JB |
737 | UNGCPRO; |
738 | ||
3738a371 | 739 | return object; |
38010d50 JB |
740 | } |
741 | ||
742 | DEFUN ("princ", Fprinc, Sprinc, 1, 2, 0, | |
743 | "Output the printed representation of OBJECT, any Lisp object.\n\ | |
744 | No quoting characters are used; no delimiters are printed around\n\ | |
745 | the contents of strings.\n\ | |
57c9eb68 | 746 | Output stream is PRINTCHARFUN, or value of standard-output (which see).") |
3738a371 EN |
747 | (object, printcharfun) |
748 | Lisp_Object object, printcharfun; | |
38010d50 | 749 | { |
081e0581 | 750 | PRINTDECLARE; |
38010d50 | 751 | |
10eebdbb | 752 | if (NILP (printcharfun)) |
38010d50 JB |
753 | printcharfun = Vstandard_output; |
754 | PRINTPREPARE; | |
3738a371 | 755 | print (object, printcharfun, 0); |
38010d50 | 756 | PRINTFINISH; |
3738a371 | 757 | return object; |
38010d50 JB |
758 | } |
759 | ||
760 | DEFUN ("print", Fprint, Sprint, 1, 2, 0, | |
761 | "Output the printed representation of OBJECT, with newlines around it.\n\ | |
762 | Quoting characters are printed when needed to make output that `read'\n\ | |
763 | can handle, whenever this is possible.\n\ | |
57c9eb68 | 764 | Output stream is PRINTCHARFUN, or value of `standard-output' (which see).") |
3738a371 EN |
765 | (object, printcharfun) |
766 | Lisp_Object object, printcharfun; | |
38010d50 | 767 | { |
081e0581 | 768 | PRINTDECLARE; |
38010d50 JB |
769 | struct gcpro gcpro1; |
770 | ||
771 | #ifdef MAX_PRINT_CHARS | |
772 | print_chars = 0; | |
773 | max_print = MAX_PRINT_CHARS; | |
774 | #endif /* MAX_PRINT_CHARS */ | |
10eebdbb | 775 | if (NILP (printcharfun)) |
38010d50 | 776 | printcharfun = Vstandard_output; |
3738a371 | 777 | GCPRO1 (object); |
38010d50 | 778 | PRINTPREPARE; |
38010d50 | 779 | PRINTCHAR ('\n'); |
3738a371 | 780 | print (object, printcharfun, 1); |
38010d50 JB |
781 | PRINTCHAR ('\n'); |
782 | PRINTFINISH; | |
783 | #ifdef MAX_PRINT_CHARS | |
784 | max_print = 0; | |
785 | print_chars = 0; | |
786 | #endif /* MAX_PRINT_CHARS */ | |
787 | UNGCPRO; | |
3738a371 | 788 | return object; |
38010d50 JB |
789 | } |
790 | ||
791 | /* The subroutine object for external-debugging-output is kept here | |
792 | for the convenience of the debugger. */ | |
793 | Lisp_Object Qexternal_debugging_output; | |
794 | ||
4746118a JB |
795 | DEFUN ("external-debugging-output", Fexternal_debugging_output, Sexternal_debugging_output, 1, 1, 0, |
796 | "Write CHARACTER to stderr.\n\ | |
38010d50 JB |
797 | You can call print while debugging emacs, and pass it this function\n\ |
798 | to make it write to the debugging output.\n") | |
4746118a JB |
799 | (character) |
800 | Lisp_Object character; | |
38010d50 JB |
801 | { |
802 | CHECK_NUMBER (character, 0); | |
803 | putc (XINT (character), stderr); | |
cd22039d RS |
804 | |
805 | #ifdef WINDOWSNT | |
806 | /* Send the output to a debugger (nothing happens if there isn't one). */ | |
807 | { | |
808 | char buf[2] = {(char) XINT (character), '\0'}; | |
809 | OutputDebugString (buf); | |
810 | } | |
811 | #endif | |
812 | ||
38010d50 JB |
813 | return character; |
814 | } | |
cf1bb91b RS |
815 | |
816 | /* This is the interface for debugging printing. */ | |
817 | ||
818 | void | |
819 | debug_print (arg) | |
820 | Lisp_Object arg; | |
821 | { | |
822 | Fprin1 (arg, Qexternal_debugging_output); | |
3684eb78 | 823 | fprintf (stderr, "\r\n"); |
cf1bb91b | 824 | } |
38010d50 | 825 | \f |
113620cc KH |
826 | DEFUN ("error-message-string", Ferror_message_string, Serror_message_string, |
827 | 1, 1, 0, | |
828 | "Convert an error value (ERROR-SYMBOL . DATA) to an error message.") | |
829 | (obj) | |
830 | Lisp_Object obj; | |
831 | { | |
832 | struct buffer *old = current_buffer; | |
63fbf4ff | 833 | Lisp_Object value; |
113620cc KH |
834 | struct gcpro gcpro1; |
835 | ||
0872e11f RS |
836 | /* If OBJ is (error STRING), just return STRING. |
837 | That is not only faster, it also avoids the need to allocate | |
838 | space here when the error is due to memory full. */ | |
94b342ce KR |
839 | if (CONSP (obj) && EQ (XCAR (obj), Qerror) |
840 | && CONSP (XCDR (obj)) | |
841 | && STRINGP (XCAR (XCDR (obj))) | |
842 | && NILP (XCDR (XCDR (obj)))) | |
843 | return XCAR (XCDR (obj)); | |
0872e11f | 844 | |
dc22f25e | 845 | print_error_message (obj, Vprin1_to_string_buffer); |
113620cc KH |
846 | |
847 | set_buffer_internal (XBUFFER (Vprin1_to_string_buffer)); | |
848 | value = Fbuffer_string (); | |
849 | ||
850 | GCPRO1 (value); | |
851 | Ferase_buffer (); | |
852 | set_buffer_internal (old); | |
853 | UNGCPRO; | |
854 | ||
855 | return value; | |
856 | } | |
857 | ||
c02279de GM |
858 | /* Print an error message for the error DATA onto Lisp output stream |
859 | STREAM (suitable for the print functions). */ | |
113620cc | 860 | |
dc22f25e | 861 | void |
113620cc KH |
862 | print_error_message (data, stream) |
863 | Lisp_Object data, stream; | |
864 | { | |
865 | Lisp_Object errname, errmsg, file_error, tail; | |
866 | struct gcpro gcpro1; | |
867 | int i; | |
868 | ||
869 | errname = Fcar (data); | |
870 | ||
871 | if (EQ (errname, Qerror)) | |
872 | { | |
873 | data = Fcdr (data); | |
c02279de GM |
874 | if (!CONSP (data)) |
875 | data = Qnil; | |
113620cc KH |
876 | errmsg = Fcar (data); |
877 | file_error = Qnil; | |
878 | } | |
879 | else | |
880 | { | |
c02279de | 881 | Lisp_Object error_conditions; |
113620cc | 882 | errmsg = Fget (errname, Qerror_message); |
c02279de GM |
883 | error_conditions = Fget (errname, Qerror_conditions); |
884 | file_error = Fmemq (Qfile_error, error_conditions); | |
113620cc KH |
885 | } |
886 | ||
887 | /* Print an error message including the data items. */ | |
888 | ||
889 | tail = Fcdr_safe (data); | |
890 | GCPRO1 (tail); | |
891 | ||
1d462b4c GM |
892 | /* If we know from where the error was signaled, show it in |
893 | *Messages*. */ | |
894 | if (!NILP (Vsignaling_function) && SYMBOLP (Vsignaling_function)) | |
895 | { | |
896 | char *name = XSYMBOL (Vsignaling_function)->name->data; | |
897 | message_dolog (name, strlen (name), 0, 0); | |
898 | message_dolog (": ", 2, 0, 0); | |
899 | Vsignaling_function = Qnil; | |
900 | } | |
901 | ||
113620cc KH |
902 | /* For file-error, make error message by concatenating |
903 | all the data items. They are all strings. */ | |
8c29413d | 904 | if (!NILP (file_error) && CONSP (tail)) |
94b342ce | 905 | errmsg = XCAR (tail), tail = XCDR (tail); |
113620cc KH |
906 | |
907 | if (STRINGP (errmsg)) | |
908 | Fprinc (errmsg, stream); | |
909 | else | |
910 | write_string_1 ("peculiar error", -1, stream); | |
911 | ||
c02279de | 912 | for (i = 0; CONSP (tail); tail = XCDR (tail), i++) |
113620cc | 913 | { |
c02279de GM |
914 | Lisp_Object obj; |
915 | ||
113620cc | 916 | write_string_1 (i ? ", " : ": ", 2, stream); |
c02279de GM |
917 | obj = XCAR (tail); |
918 | if (!NILP (file_error) || EQ (errname, Qend_of_file)) | |
919 | Fprinc (obj, stream); | |
113620cc | 920 | else |
c02279de | 921 | Fprin1 (obj, stream); |
113620cc | 922 | } |
c02279de | 923 | |
113620cc KH |
924 | UNGCPRO; |
925 | } | |
38010d50 | 926 | |
c02279de GM |
927 | |
928 | \f | |
38010d50 | 929 | /* |
edb2a707 | 930 | * The buffer should be at least as large as the max string size of the |
8e6208c5 | 931 | * largest float, printed in the biggest notation. This is undoubtedly |
38010d50 JB |
932 | * 20d float_output_format, with the negative of the C-constant "HUGE" |
933 | * from <math.h>. | |
934 | * | |
935 | * On the vax the worst case is -1e38 in 20d format which takes 61 bytes. | |
936 | * | |
937 | * I assume that IEEE-754 format numbers can take 329 bytes for the worst | |
938 | * case of -1e307 in 20d float_output_format. What is one to do (short of | |
939 | * re-writing _doprnt to be more sane)? | |
940 | * -wsr | |
941 | */ | |
edb2a707 RS |
942 | |
943 | void | |
944 | float_to_string (buf, data) | |
8b24d146 | 945 | unsigned char *buf; |
38010d50 JB |
946 | double data; |
947 | { | |
c7b14277 | 948 | unsigned char *cp; |
322890c4 | 949 | int width; |
38010d50 | 950 | |
7f45de2d RS |
951 | /* Check for plus infinity in a way that won't lose |
952 | if there is no plus infinity. */ | |
953 | if (data == data / 2 && data > 1.0) | |
954 | { | |
955 | strcpy (buf, "1.0e+INF"); | |
956 | return; | |
957 | } | |
958 | /* Likewise for minus infinity. */ | |
959 | if (data == data / 2 && data < -1.0) | |
960 | { | |
961 | strcpy (buf, "-1.0e+INF"); | |
962 | return; | |
963 | } | |
964 | /* Check for NaN in a way that won't fail if there are no NaNs. */ | |
965 | if (! (data * 0.0 >= 0.0)) | |
966 | { | |
68c45bf0 PE |
967 | /* Prepend "-" if the NaN's sign bit is negative. |
968 | The sign bit of a double is the bit that is 1 in -0.0. */ | |
969 | int i; | |
970 | union { double d; char c[sizeof (double)]; } u_data, u_minus_zero; | |
971 | u_data.d = data; | |
972 | u_minus_zero.d = - 0.0; | |
973 | for (i = 0; i < sizeof (double); i++) | |
974 | if (u_data.c[i] & u_minus_zero.c[i]) | |
975 | { | |
976 | *buf++ = '-'; | |
977 | break; | |
978 | } | |
979 | ||
7f45de2d RS |
980 | strcpy (buf, "0.0e+NaN"); |
981 | return; | |
982 | } | |
983 | ||
10eebdbb | 984 | if (NILP (Vfloat_output_format) |
d4ae1f7e | 985 | || !STRINGP (Vfloat_output_format)) |
38010d50 | 986 | lose: |
322890c4 | 987 | { |
f356c3fb PE |
988 | /* Generate the fewest number of digits that represent the |
989 | floating point value without losing information. | |
990 | The following method is simple but a bit slow. | |
991 | For ideas about speeding things up, please see: | |
992 | ||
993 | Guy L Steele Jr & Jon L White, How to print floating-point numbers | |
994 | accurately. SIGPLAN notices 25, 6 (June 1990), 112-126. | |
995 | ||
996 | Robert G Burger & R Kent Dybvig, Printing floating point numbers | |
997 | quickly and accurately, SIGPLAN notices 31, 5 (May 1996), 108-116. */ | |
998 | ||
999 | width = fabs (data) < DBL_MIN ? 1 : DBL_DIG; | |
1000 | do | |
1001 | sprintf (buf, "%.*g", width, data); | |
1002 | while (width++ < DOUBLE_DIGITS_BOUND && atof (buf) != data); | |
322890c4 | 1003 | } |
38010d50 JB |
1004 | else /* oink oink */ |
1005 | { | |
1006 | /* Check that the spec we have is fully valid. | |
1007 | This means not only valid for printf, | |
1008 | but meant for floats, and reasonable. */ | |
1009 | cp = XSTRING (Vfloat_output_format)->data; | |
1010 | ||
1011 | if (cp[0] != '%') | |
1012 | goto lose; | |
1013 | if (cp[1] != '.') | |
1014 | goto lose; | |
1015 | ||
1016 | cp += 2; | |
c7b14277 JB |
1017 | |
1018 | /* Check the width specification. */ | |
322890c4 | 1019 | width = -1; |
c7b14277 | 1020 | if ('0' <= *cp && *cp <= '9') |
381cd4bb KH |
1021 | { |
1022 | width = 0; | |
1023 | do | |
1024 | width = (width * 10) + (*cp++ - '0'); | |
1025 | while (*cp >= '0' && *cp <= '9'); | |
1026 | ||
1027 | /* A precision of zero is valid only for %f. */ | |
1028 | if (width > DBL_DIG | |
1029 | || (width == 0 && *cp != 'f')) | |
1030 | goto lose; | |
1031 | } | |
38010d50 JB |
1032 | |
1033 | if (*cp != 'e' && *cp != 'f' && *cp != 'g') | |
1034 | goto lose; | |
1035 | ||
38010d50 JB |
1036 | if (cp[1] != 0) |
1037 | goto lose; | |
1038 | ||
1039 | sprintf (buf, XSTRING (Vfloat_output_format)->data, data); | |
1040 | } | |
edb2a707 | 1041 | |
c7b14277 JB |
1042 | /* Make sure there is a decimal point with digit after, or an |
1043 | exponent, so that the value is readable as a float. But don't do | |
322890c4 RS |
1044 | this with "%.0f"; it's valid for that not to produce a decimal |
1045 | point. Note that width can be 0 only for %.0f. */ | |
1046 | if (width != 0) | |
0601fd3d | 1047 | { |
c7b14277 JB |
1048 | for (cp = buf; *cp; cp++) |
1049 | if ((*cp < '0' || *cp > '9') && *cp != '-') | |
1050 | break; | |
0601fd3d | 1051 | |
c7b14277 JB |
1052 | if (*cp == '.' && cp[1] == 0) |
1053 | { | |
1054 | cp[1] = '0'; | |
1055 | cp[2] = 0; | |
1056 | } | |
1057 | ||
1058 | if (*cp == 0) | |
1059 | { | |
1060 | *cp++ = '.'; | |
1061 | *cp++ = '0'; | |
1062 | *cp++ = 0; | |
1063 | } | |
edb2a707 | 1064 | } |
38010d50 | 1065 | } |
cc94f3b2 | 1066 | |
38010d50 JB |
1067 | \f |
1068 | static void | |
1069 | print (obj, printcharfun, escapeflag) | |
38010d50 | 1070 | Lisp_Object obj; |
38010d50 JB |
1071 | register Lisp_Object printcharfun; |
1072 | int escapeflag; | |
1073 | { | |
0f25ecc6 | 1074 | print_depth = 0; |
38010d50 | 1075 | |
0f25ecc6 RS |
1076 | /* Reset print_number_index and Vprint_number_table only when |
1077 | the variable Vprint_continuous_numbering is nil. Otherwise, | |
1078 | the values of these variables will be kept between several | |
1079 | print functions. */ | |
1080 | if (NILP (Vprint_continuous_numbering)) | |
1081 | { | |
1082 | print_number_index = 0; | |
1083 | Vprint_number_table = Qnil; | |
1084 | } | |
38010d50 | 1085 | |
0f25ecc6 RS |
1086 | /* Construct Vprint_number_table for print-gensym and print-circle. */ |
1087 | if (!NILP (Vprint_gensym) || !NILP (Vprint_circle)) | |
ec838c39 | 1088 | { |
73fb36f1 | 1089 | int i, start, index; |
0f25ecc6 | 1090 | /* Construct Vprint_number_table. */ |
73fb36f1 | 1091 | start = index = print_number_index; |
0f25ecc6 RS |
1092 | print_preprocess (obj); |
1093 | /* Remove unnecessary objects, which appear only once in OBJ; | |
1094 | that is, whose status is Qnil. */ | |
73fb36f1 | 1095 | for (i = start; i < print_number_index; i++) |
0f25ecc6 RS |
1096 | if (!NILP (PRINT_NUMBER_STATUS (Vprint_number_table, i))) |
1097 | { | |
1098 | PRINT_NUMBER_OBJECT (Vprint_number_table, index) | |
1099 | = PRINT_NUMBER_OBJECT (Vprint_number_table, i); | |
1100 | /* Reset the status field for the next print step. Now this | |
1101 | field means whether the object has already been printed. */ | |
1102 | PRINT_NUMBER_STATUS (Vprint_number_table, index) = Qnil; | |
1103 | index++; | |
1104 | } | |
1105 | print_number_index = index; | |
1106 | } | |
1107 | ||
1108 | print_object (obj, printcharfun, escapeflag); | |
1109 | } | |
1110 | ||
1111 | /* Construct Vprint_number_table according to the structure of OBJ. | |
1112 | OBJ itself and all its elements will be added to Vprint_number_table | |
1113 | recursively if it is a list, vector, compiled function, char-table, | |
1114 | string (its text properties will be traced), or a symbol that has | |
1115 | no obarray (this is for the print-gensym feature). | |
1116 | The status fields of Vprint_number_table mean whether each object appears | |
1117 | more than once in OBJ: Qnil at the first time, and Qt after that . */ | |
1118 | static void | |
1119 | print_preprocess (obj) | |
1120 | Lisp_Object obj; | |
1121 | { | |
1122 | int i, size; | |
1123 | ||
1124 | loop: | |
1125 | if (STRINGP (obj) || CONSP (obj) || VECTORP (obj) | |
1126 | || COMPILEDP (obj) || CHAR_TABLE_P (obj) | |
1127 | || (! NILP (Vprint_gensym) | |
1128 | && SYMBOLP (obj) && NILP (XSYMBOL (obj)->obarray))) | |
1129 | { | |
aca2020b KH |
1130 | /* In case print-circle is nil and print-gensym is t, |
1131 | add OBJ to Vprint_number_table only when OBJ is a symbol. */ | |
1132 | if (! NILP (Vprint_circle) || SYMBOLP (obj)) | |
0f25ecc6 | 1133 | { |
0f25ecc6 | 1134 | for (i = 0; i < print_number_index; i++) |
7c752c80 | 1135 | if (EQ (PRINT_NUMBER_OBJECT (Vprint_number_table, i), obj)) |
aca2020b KH |
1136 | { |
1137 | /* OBJ appears more than once. Let's remember that. */ | |
1138 | PRINT_NUMBER_STATUS (Vprint_number_table, i) = Qt; | |
1139 | return; | |
1140 | } | |
1141 | ||
1142 | /* OBJ is not yet recorded. Let's add to the table. */ | |
1143 | if (print_number_index == 0) | |
1144 | { | |
1145 | /* Initialize the table. */ | |
1146 | Vprint_number_table = Fmake_vector (make_number (40), Qnil); | |
1147 | } | |
1148 | else if (XVECTOR (Vprint_number_table)->size == print_number_index * 2) | |
0f25ecc6 | 1149 | { |
aca2020b KH |
1150 | /* Reallocate the table. */ |
1151 | int i = print_number_index * 4; | |
1152 | Lisp_Object old_table = Vprint_number_table; | |
1153 | Vprint_number_table = Fmake_vector (make_number (i), Qnil); | |
1154 | for (i = 0; i < print_number_index; i++) | |
1155 | { | |
1156 | PRINT_NUMBER_OBJECT (Vprint_number_table, i) | |
1157 | = PRINT_NUMBER_OBJECT (old_table, i); | |
1158 | PRINT_NUMBER_STATUS (Vprint_number_table, i) | |
1159 | = PRINT_NUMBER_STATUS (old_table, i); | |
1160 | } | |
0f25ecc6 | 1161 | } |
aca2020b KH |
1162 | PRINT_NUMBER_OBJECT (Vprint_number_table, print_number_index) = obj; |
1163 | /* If Vprint_continuous_numbering is non-nil and OBJ is a gensym, | |
1164 | always print the gensym with a number. This is a special for | |
1165 | the lisp function byte-compile-output-docform. */ | |
1166 | if (! NILP (Vprint_continuous_numbering) && SYMBOLP (obj) | |
1167 | && NILP (XSYMBOL (obj)->obarray)) | |
1168 | PRINT_NUMBER_STATUS (Vprint_number_table, print_number_index) = Qt; | |
1169 | print_number_index++; | |
0f25ecc6 | 1170 | } |
0f25ecc6 RS |
1171 | |
1172 | switch (XGCTYPE (obj)) | |
1173 | { | |
1174 | case Lisp_String: | |
0f25ecc6 RS |
1175 | /* A string may have text properties, which can be circular. */ |
1176 | traverse_intervals (XSTRING (obj)->intervals, 0, 0, | |
1177 | print_preprocess_string, Qnil); | |
0f25ecc6 RS |
1178 | break; |
1179 | ||
1180 | case Lisp_Cons: | |
1181 | print_preprocess (XCAR (obj)); | |
1182 | obj = XCDR (obj); | |
1183 | goto loop; | |
1184 | ||
1185 | case Lisp_Vectorlike: | |
1186 | size = XVECTOR (obj)->size & PSEUDOVECTOR_SIZE_MASK; | |
1187 | for (i = 0; i < size; i++) | |
1188 | print_preprocess (XVECTOR (obj)->contents[i]); | |
1189 | } | |
1190 | } | |
1191 | } | |
1192 | ||
0f25ecc6 RS |
1193 | static void |
1194 | print_preprocess_string (interval, arg) | |
1195 | INTERVAL interval; | |
1196 | Lisp_Object arg; | |
1197 | { | |
1198 | print_preprocess (interval->plist); | |
1199 | } | |
0f25ecc6 RS |
1200 | |
1201 | static void | |
1202 | print_object (obj, printcharfun, escapeflag) | |
1203 | Lisp_Object obj; | |
1204 | register Lisp_Object printcharfun; | |
1205 | int escapeflag; | |
1206 | { | |
1207 | char buf[30]; | |
1208 | ||
1209 | QUIT; | |
1210 | ||
1211 | /* Detect circularities and truncate them. */ | |
1212 | if (STRINGP (obj) || CONSP (obj) || VECTORP (obj) | |
1213 | || COMPILEDP (obj) || CHAR_TABLE_P (obj) | |
1214 | || (! NILP (Vprint_gensym) | |
1215 | && SYMBOLP (obj) && NILP (XSYMBOL (obj)->obarray))) | |
1216 | { | |
1217 | if (NILP (Vprint_circle) && NILP (Vprint_gensym)) | |
1218 | { | |
1219 | /* Simple but incomplete way. */ | |
1220 | int i; | |
1221 | for (i = 0; i < print_depth; i++) | |
1222 | if (EQ (obj, being_printed[i])) | |
1223 | { | |
1224 | sprintf (buf, "#%d", i); | |
1225 | strout (buf, -1, -1, printcharfun, 0); | |
1226 | return; | |
1227 | } | |
1228 | being_printed[print_depth] = obj; | |
1229 | } | |
1230 | else | |
1231 | { | |
1232 | /* With the print-circle feature. */ | |
1233 | int i; | |
1234 | for (i = 0; i < print_number_index; i++) | |
7c752c80 | 1235 | if (EQ (PRINT_NUMBER_OBJECT (Vprint_number_table, i), obj)) |
0f25ecc6 RS |
1236 | { |
1237 | if (NILP (PRINT_NUMBER_STATUS (Vprint_number_table, i))) | |
1238 | { | |
1239 | /* Add a prefix #n= if OBJ has not yet been printed; | |
1240 | that is, its status field is nil. */ | |
1241 | sprintf (buf, "#%d=", i + 1); | |
1242 | strout (buf, -1, -1, printcharfun, 0); | |
1243 | /* OBJ is going to be printed. Set the status to t. */ | |
1244 | PRINT_NUMBER_STATUS (Vprint_number_table, i) = Qt; | |
1245 | break; | |
1246 | } | |
1247 | else | |
1248 | { | |
1249 | /* Just print #n# if OBJ has already been printed. */ | |
1250 | sprintf (buf, "#%d#", i + 1); | |
1251 | strout (buf, -1, -1, printcharfun, 0); | |
1252 | return; | |
1253 | } | |
1254 | } | |
1255 | } | |
ec838c39 | 1256 | } |
ec838c39 | 1257 | |
38010d50 JB |
1258 | print_depth++; |
1259 | ||
ec838c39 | 1260 | if (print_depth > PRINT_CIRCLE) |
38010d50 JB |
1261 | error ("Apparently circular structure being printed"); |
1262 | #ifdef MAX_PRINT_CHARS | |
1263 | if (max_print && print_chars > max_print) | |
1264 | { | |
1265 | PRINTCHAR ('\n'); | |
1266 | print_chars = 0; | |
1267 | } | |
1268 | #endif /* MAX_PRINT_CHARS */ | |
1269 | ||
ca0569ad | 1270 | switch (XGCTYPE (obj)) |
38010d50 | 1271 | { |
ca0569ad | 1272 | case Lisp_Int: |
b8180922 RS |
1273 | if (sizeof (int) == sizeof (EMACS_INT)) |
1274 | sprintf (buf, "%d", XINT (obj)); | |
1275 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
63fbf4ff | 1276 | sprintf (buf, "%ld", (long) XINT (obj)); |
b8180922 RS |
1277 | else |
1278 | abort (); | |
dc2a0b79 | 1279 | strout (buf, -1, -1, printcharfun, 0); |
ca0569ad RS |
1280 | break; |
1281 | ||
ca0569ad RS |
1282 | case Lisp_Float: |
1283 | { | |
1284 | char pigbuf[350]; /* see comments in float_to_string */ | |
38010d50 | 1285 | |
94b342ce | 1286 | float_to_string (pigbuf, XFLOAT_DATA (obj)); |
dc2a0b79 | 1287 | strout (pigbuf, -1, -1, printcharfun, 0); |
ca0569ad RS |
1288 | } |
1289 | break; | |
ca0569ad RS |
1290 | |
1291 | case Lisp_String: | |
38010d50 JB |
1292 | if (!escapeflag) |
1293 | print_string (obj, printcharfun); | |
1294 | else | |
1295 | { | |
dc2a0b79 | 1296 | register int i, i_byte; |
38010d50 | 1297 | struct gcpro gcpro1; |
872a36d2 | 1298 | unsigned char *str; |
dc2a0b79 | 1299 | int size_byte; |
453fa987 RS |
1300 | /* 1 means we must ensure that the next character we output |
1301 | cannot be taken as part of a hex character escape. */ | |
1302 | int need_nonhex = 0; | |
38010d50 | 1303 | |
7651e1f5 RS |
1304 | GCPRO1 (obj); |
1305 | ||
7651e1f5 RS |
1306 | if (!NULL_INTERVAL_P (XSTRING (obj)->intervals)) |
1307 | { | |
1308 | PRINTCHAR ('#'); | |
1309 | PRINTCHAR ('('); | |
1310 | } | |
38010d50 JB |
1311 | |
1312 | PRINTCHAR ('\"'); | |
872a36d2 | 1313 | str = XSTRING (obj)->data; |
fc932ac6 | 1314 | size_byte = STRING_BYTES (XSTRING (obj)); |
dc2a0b79 RS |
1315 | |
1316 | for (i = 0, i_byte = 0; i_byte < size_byte;) | |
38010d50 | 1317 | { |
6ddd6eee RS |
1318 | /* Here, we must convert each multi-byte form to the |
1319 | corresponding character code before handing it to PRINTCHAR. */ | |
1320 | int len; | |
dc2a0b79 RS |
1321 | int c; |
1322 | ||
1323 | if (STRING_MULTIBYTE (obj)) | |
872a36d2 | 1324 | { |
765fe1d0 KH |
1325 | c = STRING_CHAR_AND_LENGTH (str + i_byte, |
1326 | size_byte - i_byte, len); | |
da1ad4e7 KH |
1327 | if (CHAR_VALID_P (c, 0)) |
1328 | i_byte += len; | |
1329 | else | |
1330 | c = str[i_byte++]; | |
872a36d2 | 1331 | } |
dc2a0b79 | 1332 | else |
872a36d2 | 1333 | c = str[i_byte++]; |
dc2a0b79 | 1334 | |
38010d50 | 1335 | QUIT; |
6ddd6eee | 1336 | |
38010d50 JB |
1337 | if (c == '\n' && print_escape_newlines) |
1338 | { | |
1339 | PRINTCHAR ('\\'); | |
1340 | PRINTCHAR ('n'); | |
1341 | } | |
c6f7982f RM |
1342 | else if (c == '\f' && print_escape_newlines) |
1343 | { | |
1344 | PRINTCHAR ('\\'); | |
1345 | PRINTCHAR ('f'); | |
1346 | } | |
835d0be6 | 1347 | else if (! SINGLE_BYTE_CHAR_P (c) && print_escape_multibyte) |
dc2a0b79 RS |
1348 | { |
1349 | /* When multibyte is disabled, | |
1350 | print multibyte string chars using hex escapes. */ | |
1351 | unsigned char outbuf[50]; | |
1352 | sprintf (outbuf, "\\x%x", c); | |
1353 | strout (outbuf, -1, -1, printcharfun, 0); | |
453fa987 | 1354 | need_nonhex = 1; |
dc2a0b79 | 1355 | } |
835d0be6 RS |
1356 | else if (SINGLE_BYTE_CHAR_P (c) && ! ASCII_BYTE_P (c) |
1357 | && print_escape_nonascii) | |
974a6ff5 | 1358 | { |
835d0be6 RS |
1359 | /* When printing in a multibyte buffer |
1360 | or when explicitly requested, | |
974a6ff5 KH |
1361 | print single-byte non-ASCII string chars |
1362 | using octal escapes. */ | |
1363 | unsigned char outbuf[5]; | |
1364 | sprintf (outbuf, "\\%03o", c); | |
1365 | strout (outbuf, -1, -1, printcharfun, 0); | |
1366 | } | |
38010d50 JB |
1367 | else |
1368 | { | |
453fa987 RS |
1369 | /* If we just had a hex escape, and this character |
1370 | could be taken as part of it, | |
1371 | output `\ ' to prevent that. */ | |
1b62edd6 KH |
1372 | if (need_nonhex) |
1373 | { | |
1374 | need_nonhex = 0; | |
1375 | if ((c >= 'a' && c <= 'f') | |
453fa987 | 1376 | || (c >= 'A' && c <= 'F') |
1b62edd6 KH |
1377 | || (c >= '0' && c <= '9')) |
1378 | strout ("\\ ", -1, -1, printcharfun, 0); | |
1379 | } | |
453fa987 | 1380 | |
38010d50 JB |
1381 | if (c == '\"' || c == '\\') |
1382 | PRINTCHAR ('\\'); | |
1383 | PRINTCHAR (c); | |
1384 | } | |
1385 | } | |
1386 | PRINTCHAR ('\"'); | |
7651e1f5 | 1387 | |
7651e1f5 RS |
1388 | if (!NULL_INTERVAL_P (XSTRING (obj)->intervals)) |
1389 | { | |
7651e1f5 RS |
1390 | traverse_intervals (XSTRING (obj)->intervals, |
1391 | 0, 0, print_interval, printcharfun); | |
1392 | PRINTCHAR (')'); | |
1393 | } | |
7651e1f5 | 1394 | |
38010d50 JB |
1395 | UNGCPRO; |
1396 | } | |
ca0569ad | 1397 | break; |
38010d50 | 1398 | |
ca0569ad RS |
1399 | case Lisp_Symbol: |
1400 | { | |
1401 | register int confusing; | |
1402 | register unsigned char *p = XSYMBOL (obj)->name->data; | |
fc932ac6 | 1403 | register unsigned char *end = p + STRING_BYTES (XSYMBOL (obj)->name); |
2190a05e | 1404 | register int c; |
dc2a0b79 RS |
1405 | int i, i_byte, size_byte; |
1406 | Lisp_Object name; | |
1407 | ||
1408 | XSETSTRING (name, XSYMBOL (obj)->name); | |
ca0569ad RS |
1409 | |
1410 | if (p != end && (*p == '-' || *p == '+')) p++; | |
1411 | if (p == end) | |
1412 | confusing = 0; | |
d27497e3 RS |
1413 | /* If symbol name begins with a digit, and ends with a digit, |
1414 | and contains nothing but digits and `e', it could be treated | |
1415 | as a number. So set CONFUSING. | |
1416 | ||
1417 | Symbols that contain periods could also be taken as numbers, | |
1418 | but periods are always escaped, so we don't have to worry | |
1419 | about them here. */ | |
1420 | else if (*p >= '0' && *p <= '9' | |
1421 | && end[-1] >= '0' && end[-1] <= '9') | |
ca0569ad | 1422 | { |
e837058b RS |
1423 | while (p != end && ((*p >= '0' && *p <= '9') |
1424 | /* Needed for \2e10. */ | |
1425 | || *p == 'e')) | |
ca0569ad RS |
1426 | p++; |
1427 | confusing = (end == p); | |
1428 | } | |
d27497e3 RS |
1429 | else |
1430 | confusing = 0; | |
ca0569ad | 1431 | |
e0f69431 | 1432 | if (! NILP (Vprint_gensym) && NILP (XSYMBOL (obj)->obarray)) |
081e0581 | 1433 | { |
081e0581 EN |
1434 | PRINTCHAR ('#'); |
1435 | PRINTCHAR (':'); | |
1436 | } | |
1437 | ||
fc932ac6 | 1438 | size_byte = STRING_BYTES (XSTRING (name)); |
dc2a0b79 RS |
1439 | |
1440 | for (i = 0, i_byte = 0; i_byte < size_byte;) | |
ca0569ad | 1441 | { |
6ddd6eee RS |
1442 | /* Here, we must convert each multi-byte form to the |
1443 | corresponding character code before handing it to PRINTCHAR. */ | |
eba90784 | 1444 | FETCH_STRING_CHAR_ADVANCE (c, name, i, i_byte); |
ca0569ad | 1445 | QUIT; |
09eddb56 | 1446 | |
ca0569ad RS |
1447 | if (escapeflag) |
1448 | { | |
09eddb56 RS |
1449 | if (c == '\"' || c == '\\' || c == '\'' |
1450 | || c == ';' || c == '#' || c == '(' || c == ')' | |
1451 | || c == ',' || c =='.' || c == '`' | |
1452 | || c == '[' || c == ']' || c == '?' || c <= 040 | |
1453 | || confusing) | |
ca0569ad RS |
1454 | PRINTCHAR ('\\'), confusing = 0; |
1455 | } | |
1456 | PRINTCHAR (c); | |
1457 | } | |
1458 | } | |
1459 | break; | |
1460 | ||
1461 | case Lisp_Cons: | |
38010d50 | 1462 | /* If deeper than spec'd depth, print placeholder. */ |
d4ae1f7e | 1463 | if (INTEGERP (Vprint_level) |
38010d50 | 1464 | && print_depth > XINT (Vprint_level)) |
dc2a0b79 | 1465 | strout ("...", -1, -1, printcharfun, 0); |
2f100b5c EN |
1466 | else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj))) |
1467 | && (EQ (XCAR (obj), Qquote))) | |
1468 | { | |
1469 | PRINTCHAR ('\''); | |
0f25ecc6 | 1470 | print_object (XCAR (XCDR (obj)), printcharfun, escapeflag); |
2f100b5c EN |
1471 | } |
1472 | else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj))) | |
1473 | && (EQ (XCAR (obj), Qfunction))) | |
1474 | { | |
1475 | PRINTCHAR ('#'); | |
1476 | PRINTCHAR ('\''); | |
0f25ecc6 | 1477 | print_object (XCAR (XCDR (obj)), printcharfun, escapeflag); |
2f100b5c EN |
1478 | } |
1479 | else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj))) | |
1480 | && ((EQ (XCAR (obj), Qbackquote) | |
1481 | || EQ (XCAR (obj), Qcomma) | |
1482 | || EQ (XCAR (obj), Qcomma_at) | |
1483 | || EQ (XCAR (obj), Qcomma_dot)))) | |
1484 | { | |
0f25ecc6 RS |
1485 | print_object (XCAR (obj), printcharfun, 0); |
1486 | print_object (XCAR (XCDR (obj)), printcharfun, escapeflag); | |
2f100b5c | 1487 | } |
e0f93814 | 1488 | else |
38010d50 | 1489 | { |
e0f93814 | 1490 | PRINTCHAR ('('); |
38010d50 | 1491 | { |
42ac1ed4 | 1492 | int print_length, i; |
1eab22b5 | 1493 | Lisp_Object halftail = obj; |
e0f93814 | 1494 | |
9ab8560d | 1495 | /* Negative values of print-length are invalid in CL. |
42ac1ed4 GM |
1496 | Treat them like nil, as CMUCL does. */ |
1497 | if (NATNUMP (Vprint_length)) | |
1498 | print_length = XFASTINT (Vprint_length); | |
1499 | else | |
1500 | print_length = 0; | |
1501 | ||
1502 | i = 0; | |
e0f93814 | 1503 | while (CONSP (obj)) |
38010d50 | 1504 | { |
1eab22b5 | 1505 | /* Detect circular list. */ |
0f25ecc6 | 1506 | if (NILP (Vprint_circle)) |
1eab22b5 | 1507 | { |
0f25ecc6 RS |
1508 | /* Simple but imcomplete way. */ |
1509 | if (i != 0 && EQ (obj, halftail)) | |
1510 | { | |
1511 | sprintf (buf, " . #%d", i / 2); | |
1512 | strout (buf, -1, -1, printcharfun, 0); | |
1513 | goto end_of_list; | |
1514 | } | |
1515 | } | |
1516 | else | |
1517 | { | |
1518 | /* With the print-circle feature. */ | |
1519 | if (i != 0) | |
1520 | { | |
1521 | int i; | |
1522 | for (i = 0; i < print_number_index; i++) | |
42ac1ed4 GM |
1523 | if (EQ (PRINT_NUMBER_OBJECT (Vprint_number_table, i), |
1524 | obj)) | |
0f25ecc6 RS |
1525 | { |
1526 | if (NILP (PRINT_NUMBER_STATUS (Vprint_number_table, i))) | |
1527 | { | |
1528 | strout (" . ", 3, 3, printcharfun, 0); | |
1529 | print_object (obj, printcharfun, escapeflag); | |
1530 | } | |
1531 | else | |
1532 | { | |
1533 | sprintf (buf, " . #%d#", i + 1); | |
1534 | strout (buf, -1, -1, printcharfun, 0); | |
1535 | } | |
1536 | goto end_of_list; | |
1537 | } | |
1538 | } | |
1eab22b5 | 1539 | } |
42ac1ed4 | 1540 | |
e0f93814 KH |
1541 | if (i++) |
1542 | PRINTCHAR (' '); | |
42ac1ed4 | 1543 | |
f4fe72d5 | 1544 | if (print_length && i > print_length) |
e0f93814 | 1545 | { |
dc2a0b79 | 1546 | strout ("...", 3, 3, printcharfun, 0); |
0f25ecc6 | 1547 | goto end_of_list; |
e0f93814 | 1548 | } |
42ac1ed4 | 1549 | |
0f25ecc6 | 1550 | print_object (XCAR (obj), printcharfun, escapeflag); |
42ac1ed4 | 1551 | |
2f100b5c | 1552 | obj = XCDR (obj); |
1eab22b5 RS |
1553 | if (!(i & 1)) |
1554 | halftail = XCDR (halftail); | |
38010d50 | 1555 | } |
38010d50 | 1556 | } |
42ac1ed4 GM |
1557 | |
1558 | /* OBJ non-nil here means it's the end of a dotted list. */ | |
2f100b5c | 1559 | if (!NILP (obj)) |
e0f93814 | 1560 | { |
dc2a0b79 | 1561 | strout (" . ", 3, 3, printcharfun, 0); |
0f25ecc6 | 1562 | print_object (obj, printcharfun, escapeflag); |
e0f93814 | 1563 | } |
42ac1ed4 | 1564 | |
0f25ecc6 | 1565 | end_of_list: |
e0f93814 | 1566 | PRINTCHAR (')'); |
38010d50 | 1567 | } |
ca0569ad RS |
1568 | break; |
1569 | ||
1570 | case Lisp_Vectorlike: | |
1571 | if (PROCESSP (obj)) | |
1572 | { | |
1573 | if (escapeflag) | |
1574 | { | |
dc2a0b79 | 1575 | strout ("#<process ", -1, -1, printcharfun, 0); |
ca0569ad RS |
1576 | print_string (XPROCESS (obj)->name, printcharfun); |
1577 | PRINTCHAR ('>'); | |
1578 | } | |
1579 | else | |
1580 | print_string (XPROCESS (obj)->name, printcharfun); | |
1581 | } | |
ed2c35ef RS |
1582 | else if (BOOL_VECTOR_P (obj)) |
1583 | { | |
1584 | register int i; | |
1585 | register unsigned char c; | |
1586 | struct gcpro gcpro1; | |
ed2c35ef | 1587 | int size_in_chars |
1bad7c59 | 1588 | = (XBOOL_VECTOR (obj)->size + BITS_PER_CHAR - 1) / BITS_PER_CHAR; |
ed2c35ef RS |
1589 | |
1590 | GCPRO1 (obj); | |
1591 | ||
1592 | PRINTCHAR ('#'); | |
1593 | PRINTCHAR ('&'); | |
1594 | sprintf (buf, "%d", XBOOL_VECTOR (obj)->size); | |
dc2a0b79 | 1595 | strout (buf, -1, -1, printcharfun, 0); |
ed2c35ef | 1596 | PRINTCHAR ('\"'); |
a40384bc | 1597 | |
42ac1ed4 | 1598 | /* Don't print more characters than the specified maximum. |
9ab8560d | 1599 | Negative values of print-length are invalid. Treat them |
42ac1ed4 GM |
1600 | like a print-length of nil. */ |
1601 | if (NATNUMP (Vprint_length) | |
1602 | && XFASTINT (Vprint_length) < size_in_chars) | |
1603 | size_in_chars = XFASTINT (Vprint_length); | |
a40384bc | 1604 | |
ed2c35ef RS |
1605 | for (i = 0; i < size_in_chars; i++) |
1606 | { | |
1607 | QUIT; | |
1608 | c = XBOOL_VECTOR (obj)->data[i]; | |
1609 | if (c == '\n' && print_escape_newlines) | |
1610 | { | |
1611 | PRINTCHAR ('\\'); | |
1612 | PRINTCHAR ('n'); | |
1613 | } | |
1614 | else if (c == '\f' && print_escape_newlines) | |
1615 | { | |
1616 | PRINTCHAR ('\\'); | |
1617 | PRINTCHAR ('f'); | |
1618 | } | |
1619 | else | |
1620 | { | |
1621 | if (c == '\"' || c == '\\') | |
1622 | PRINTCHAR ('\\'); | |
1623 | PRINTCHAR (c); | |
1624 | } | |
1625 | } | |
1626 | PRINTCHAR ('\"'); | |
1627 | ||
1628 | UNGCPRO; | |
1629 | } | |
ca0569ad RS |
1630 | else if (SUBRP (obj)) |
1631 | { | |
dc2a0b79 RS |
1632 | strout ("#<subr ", -1, -1, printcharfun, 0); |
1633 | strout (XSUBR (obj)->symbol_name, -1, -1, printcharfun, 0); | |
ca0569ad RS |
1634 | PRINTCHAR ('>'); |
1635 | } | |
ca0569ad RS |
1636 | else if (WINDOWP (obj)) |
1637 | { | |
dc2a0b79 | 1638 | strout ("#<window ", -1, -1, printcharfun, 0); |
ca0569ad | 1639 | sprintf (buf, "%d", XFASTINT (XWINDOW (obj)->sequence_number)); |
dc2a0b79 | 1640 | strout (buf, -1, -1, printcharfun, 0); |
ca0569ad RS |
1641 | if (!NILP (XWINDOW (obj)->buffer)) |
1642 | { | |
dc2a0b79 | 1643 | strout (" on ", -1, -1, printcharfun, 0); |
ca0569ad RS |
1644 | print_string (XBUFFER (XWINDOW (obj)->buffer)->name, printcharfun); |
1645 | } | |
1646 | PRINTCHAR ('>'); | |
1647 | } | |
7eb03302 GM |
1648 | else if (HASH_TABLE_P (obj)) |
1649 | { | |
1650 | struct Lisp_Hash_Table *h = XHASH_TABLE (obj); | |
1651 | strout ("#<hash-table", -1, -1, printcharfun, 0); | |
1652 | if (SYMBOLP (h->test)) | |
1653 | { | |
1654 | PRINTCHAR (' '); | |
1655 | PRINTCHAR ('\''); | |
1656 | strout (XSYMBOL (h->test)->name->data, -1, -1, printcharfun, 0); | |
1657 | PRINTCHAR (' '); | |
1658 | strout (XSYMBOL (h->weak)->name->data, -1, -1, printcharfun, 0); | |
1659 | PRINTCHAR (' '); | |
1660 | sprintf (buf, "%d/%d", XFASTINT (h->count), | |
1661 | XVECTOR (h->next)->size); | |
1662 | strout (buf, -1, -1, printcharfun, 0); | |
1663 | } | |
1664 | sprintf (buf, " 0x%lx", (unsigned long) h); | |
1665 | strout (buf, -1, -1, printcharfun, 0); | |
1666 | PRINTCHAR ('>'); | |
1667 | } | |
908b0ae5 RS |
1668 | else if (BUFFERP (obj)) |
1669 | { | |
1670 | if (NILP (XBUFFER (obj)->name)) | |
dc2a0b79 | 1671 | strout ("#<killed buffer>", -1, -1, printcharfun, 0); |
908b0ae5 RS |
1672 | else if (escapeflag) |
1673 | { | |
dc2a0b79 | 1674 | strout ("#<buffer ", -1, -1, printcharfun, 0); |
908b0ae5 RS |
1675 | print_string (XBUFFER (obj)->name, printcharfun); |
1676 | PRINTCHAR ('>'); | |
1677 | } | |
1678 | else | |
1679 | print_string (XBUFFER (obj)->name, printcharfun); | |
1680 | } | |
ca0569ad RS |
1681 | else if (WINDOW_CONFIGURATIONP (obj)) |
1682 | { | |
dc2a0b79 | 1683 | strout ("#<window-configuration>", -1, -1, printcharfun, 0); |
ca0569ad | 1684 | } |
ca0569ad RS |
1685 | else if (FRAMEP (obj)) |
1686 | { | |
1687 | strout ((FRAME_LIVE_P (XFRAME (obj)) | |
1688 | ? "#<frame " : "#<dead frame "), | |
dc2a0b79 | 1689 | -1, -1, printcharfun, 0); |
ca0569ad | 1690 | print_string (XFRAME (obj)->name, printcharfun); |
dc2a0b79 RS |
1691 | sprintf (buf, " 0x%lx\\ ", (unsigned long) (XFRAME (obj))); |
1692 | strout (buf, -1, -1, printcharfun, 0); | |
ca0569ad RS |
1693 | PRINTCHAR ('>'); |
1694 | } | |
ca0569ad RS |
1695 | else |
1696 | { | |
1697 | int size = XVECTOR (obj)->size; | |
1698 | if (COMPILEDP (obj)) | |
1699 | { | |
1700 | PRINTCHAR ('#'); | |
1701 | size &= PSEUDOVECTOR_SIZE_MASK; | |
1702 | } | |
ed2c35ef RS |
1703 | if (CHAR_TABLE_P (obj)) |
1704 | { | |
1705 | /* We print a char-table as if it were a vector, | |
1706 | lumping the parent and default slots in with the | |
1707 | character slots. But we add #^ as a prefix. */ | |
1708 | PRINTCHAR ('#'); | |
1709 | PRINTCHAR ('^'); | |
3701b5de KH |
1710 | if (SUB_CHAR_TABLE_P (obj)) |
1711 | PRINTCHAR ('^'); | |
ed2c35ef RS |
1712 | size &= PSEUDOVECTOR_SIZE_MASK; |
1713 | } | |
00d76abc KH |
1714 | if (size & PSEUDOVECTOR_FLAG) |
1715 | goto badtype; | |
ca0569ad RS |
1716 | |
1717 | PRINTCHAR ('['); | |
38010d50 | 1718 | { |
ca0569ad RS |
1719 | register int i; |
1720 | register Lisp_Object tem; | |
d6ac884e | 1721 | int real_size = size; |
a40384bc RS |
1722 | |
1723 | /* Don't print more elements than the specified maximum. */ | |
42ac1ed4 GM |
1724 | if (NATNUMP (Vprint_length) |
1725 | && XFASTINT (Vprint_length) < size) | |
1726 | size = XFASTINT (Vprint_length); | |
a40384bc | 1727 | |
ca0569ad RS |
1728 | for (i = 0; i < size; i++) |
1729 | { | |
1730 | if (i) PRINTCHAR (' '); | |
1731 | tem = XVECTOR (obj)->contents[i]; | |
0f25ecc6 | 1732 | print_object (tem, printcharfun, escapeflag); |
ca0569ad | 1733 | } |
d6ac884e KH |
1734 | if (size < real_size) |
1735 | strout (" ...", 4, 4, printcharfun, 0); | |
38010d50 | 1736 | } |
ca0569ad RS |
1737 | PRINTCHAR (']'); |
1738 | } | |
1739 | break; | |
1740 | ||
ca0569ad | 1741 | case Lisp_Misc: |
5db20f08 | 1742 | switch (XMISCTYPE (obj)) |
38010d50 | 1743 | { |
00d76abc | 1744 | case Lisp_Misc_Marker: |
dc2a0b79 | 1745 | strout ("#<marker ", -1, -1, printcharfun, 0); |
087e3c46 KH |
1746 | /* Do you think this is necessary? */ |
1747 | if (XMARKER (obj)->insertion_type != 0) | |
dc2a0b79 | 1748 | strout ("(before-insertion) ", -1, -1, printcharfun, 0); |
ca0569ad | 1749 | if (!(XMARKER (obj)->buffer)) |
dc2a0b79 | 1750 | strout ("in no buffer", -1, -1, printcharfun, 0); |
ca0569ad RS |
1751 | else |
1752 | { | |
1753 | sprintf (buf, "at %d", marker_position (obj)); | |
dc2a0b79 RS |
1754 | strout (buf, -1, -1, printcharfun, 0); |
1755 | strout (" in ", -1, -1, printcharfun, 0); | |
ca0569ad RS |
1756 | print_string (XMARKER (obj)->buffer->name, printcharfun); |
1757 | } | |
38010d50 | 1758 | PRINTCHAR ('>'); |
908b0ae5 | 1759 | break; |
00d76abc KH |
1760 | |
1761 | case Lisp_Misc_Overlay: | |
dc2a0b79 | 1762 | strout ("#<overlay ", -1, -1, printcharfun, 0); |
ca0569ad | 1763 | if (!(XMARKER (OVERLAY_START (obj))->buffer)) |
dc2a0b79 | 1764 | strout ("in no buffer", -1, -1, printcharfun, 0); |
ca0569ad RS |
1765 | else |
1766 | { | |
1767 | sprintf (buf, "from %d to %d in ", | |
1768 | marker_position (OVERLAY_START (obj)), | |
1769 | marker_position (OVERLAY_END (obj))); | |
dc2a0b79 | 1770 | strout (buf, -1, -1, printcharfun, 0); |
ca0569ad RS |
1771 | print_string (XMARKER (OVERLAY_START (obj))->buffer->name, |
1772 | printcharfun); | |
1773 | } | |
1774 | PRINTCHAR ('>'); | |
908b0ae5 | 1775 | break; |
00d76abc KH |
1776 | |
1777 | /* Remaining cases shouldn't happen in normal usage, but let's print | |
1778 | them anyway for the benefit of the debugger. */ | |
1779 | case Lisp_Misc_Free: | |
dc2a0b79 | 1780 | strout ("#<misc free cell>", -1, -1, printcharfun, 0); |
00d76abc KH |
1781 | break; |
1782 | ||
1783 | case Lisp_Misc_Intfwd: | |
1784 | sprintf (buf, "#<intfwd to %d>", *XINTFWD (obj)->intvar); | |
dc2a0b79 | 1785 | strout (buf, -1, -1, printcharfun, 0); |
00d76abc KH |
1786 | break; |
1787 | ||
1788 | case Lisp_Misc_Boolfwd: | |
1789 | sprintf (buf, "#<boolfwd to %s>", | |
1790 | (*XBOOLFWD (obj)->boolvar ? "t" : "nil")); | |
dc2a0b79 | 1791 | strout (buf, -1, -1, printcharfun, 0); |
00d76abc KH |
1792 | break; |
1793 | ||
1794 | case Lisp_Misc_Objfwd: | |
dc2a0b79 | 1795 | strout ("#<objfwd to ", -1, -1, printcharfun, 0); |
0f25ecc6 | 1796 | print_object (*XOBJFWD (obj)->objvar, printcharfun, escapeflag); |
00d76abc KH |
1797 | PRINTCHAR ('>'); |
1798 | break; | |
1799 | ||
1800 | case Lisp_Misc_Buffer_Objfwd: | |
dc2a0b79 | 1801 | strout ("#<buffer_objfwd to ", -1, -1, printcharfun, 0); |
f6cd0527 GM |
1802 | print_object (PER_BUFFER_VALUE (current_buffer, |
1803 | XBUFFER_OBJFWD (obj)->offset), | |
c3279ad4 | 1804 | printcharfun, escapeflag); |
3ac613c1 KH |
1805 | PRINTCHAR ('>'); |
1806 | break; | |
1807 | ||
fb917148 | 1808 | case Lisp_Misc_Kboard_Objfwd: |
dc2a0b79 | 1809 | strout ("#<kboard_objfwd to ", -1, -1, printcharfun, 0); |
0f25ecc6 RS |
1810 | print_object (*(Lisp_Object *)((char *) current_kboard |
1811 | + XKBOARD_OBJFWD (obj)->offset), | |
c3279ad4 | 1812 | printcharfun, escapeflag); |
00d76abc KH |
1813 | PRINTCHAR ('>'); |
1814 | break; | |
1815 | ||
1816 | case Lisp_Misc_Buffer_Local_Value: | |
dc2a0b79 | 1817 | strout ("#<buffer_local_value ", -1, -1, printcharfun, 0); |
00d76abc KH |
1818 | goto do_buffer_local; |
1819 | case Lisp_Misc_Some_Buffer_Local_Value: | |
dc2a0b79 | 1820 | strout ("#<some_buffer_local_value ", -1, -1, printcharfun, 0); |
00d76abc | 1821 | do_buffer_local: |
dc2a0b79 | 1822 | strout ("[realvalue] ", -1, -1, printcharfun, 0); |
0f25ecc6 RS |
1823 | print_object (XBUFFER_LOCAL_VALUE (obj)->realvalue, |
1824 | printcharfun, escapeflag); | |
03153771 RS |
1825 | if (XBUFFER_LOCAL_VALUE (obj)->found_for_buffer) |
1826 | strout ("[local in buffer] ", -1, -1, printcharfun, 0); | |
1827 | else | |
1828 | strout ("[buffer] ", -1, -1, printcharfun, 0); | |
0f25ecc6 RS |
1829 | print_object (XBUFFER_LOCAL_VALUE (obj)->buffer, |
1830 | printcharfun, escapeflag); | |
03153771 RS |
1831 | if (XBUFFER_LOCAL_VALUE (obj)->check_frame) |
1832 | { | |
1833 | if (XBUFFER_LOCAL_VALUE (obj)->found_for_frame) | |
1834 | strout ("[local in frame] ", -1, -1, printcharfun, 0); | |
1835 | else | |
1836 | strout ("[frame] ", -1, -1, printcharfun, 0); | |
0f25ecc6 RS |
1837 | print_object (XBUFFER_LOCAL_VALUE (obj)->frame, |
1838 | printcharfun, escapeflag); | |
03153771 | 1839 | } |
dc2a0b79 | 1840 | strout ("[alist-elt] ", -1, -1, printcharfun, 0); |
94b342ce | 1841 | print_object (XCAR (XBUFFER_LOCAL_VALUE (obj)->cdr), |
0f25ecc6 | 1842 | printcharfun, escapeflag); |
dc2a0b79 | 1843 | strout ("[default-value] ", -1, -1, printcharfun, 0); |
94b342ce | 1844 | print_object (XCDR (XBUFFER_LOCAL_VALUE (obj)->cdr), |
0f25ecc6 | 1845 | printcharfun, escapeflag); |
00d76abc KH |
1846 | PRINTCHAR ('>'); |
1847 | break; | |
1848 | ||
1849 | default: | |
1850 | goto badtype; | |
e0f93814 | 1851 | } |
00d76abc | 1852 | break; |
ca0569ad RS |
1853 | |
1854 | default: | |
00d76abc | 1855 | badtype: |
ca0569ad RS |
1856 | { |
1857 | /* We're in trouble if this happens! | |
1858 | Probably should just abort () */ | |
dc2a0b79 | 1859 | strout ("#<EMACS BUG: INVALID DATATYPE ", -1, -1, printcharfun, 0); |
00d76abc | 1860 | if (MISCP (obj)) |
5db20f08 | 1861 | sprintf (buf, "(MISC 0x%04x)", (int) XMISCTYPE (obj)); |
00d76abc KH |
1862 | else if (VECTORLIKEP (obj)) |
1863 | sprintf (buf, "(PVEC 0x%08x)", (int) XVECTOR (obj)->size); | |
1864 | else | |
1865 | sprintf (buf, "(0x%02x)", (int) XTYPE (obj)); | |
dc2a0b79 | 1866 | strout (buf, -1, -1, printcharfun, 0); |
ca0569ad | 1867 | strout (" Save your buffers immediately and please report this bug>", |
dc2a0b79 | 1868 | -1, -1, printcharfun, 0); |
ca0569ad | 1869 | } |
38010d50 JB |
1870 | } |
1871 | ||
1872 | print_depth--; | |
1873 | } | |
1874 | \f | |
7651e1f5 RS |
1875 | |
1876 | /* Print a description of INTERVAL using PRINTCHARFUN. | |
1877 | This is part of printing a string that has text properties. */ | |
1878 | ||
1879 | void | |
1880 | print_interval (interval, printcharfun) | |
1881 | INTERVAL interval; | |
1882 | Lisp_Object printcharfun; | |
1883 | { | |
30503c0b | 1884 | PRINTCHAR (' '); |
0f25ecc6 | 1885 | print_object (make_number (interval->position), printcharfun, 1); |
7651e1f5 | 1886 | PRINTCHAR (' '); |
0f25ecc6 | 1887 | print_object (make_number (interval->position + LENGTH (interval)), |
7651e1f5 RS |
1888 | printcharfun, 1); |
1889 | PRINTCHAR (' '); | |
0f25ecc6 | 1890 | print_object (interval->plist, printcharfun, 1); |
7651e1f5 RS |
1891 | } |
1892 | ||
7651e1f5 | 1893 | \f |
38010d50 JB |
1894 | void |
1895 | syms_of_print () | |
1896 | { | |
d9c21094 RS |
1897 | Qtemp_buffer_setup_hook = intern ("temp-buffer-setup-hook"); |
1898 | staticpro (&Qtemp_buffer_setup_hook); | |
1899 | ||
38010d50 JB |
1900 | DEFVAR_LISP ("standard-output", &Vstandard_output, |
1901 | "Output stream `print' uses by default for outputting a character.\n\ | |
1902 | This may be any function of one argument.\n\ | |
1903 | It may also be a buffer (output is inserted before point)\n\ | |
1904 | or a marker (output is inserted and the marker is advanced)\n\ | |
113620cc | 1905 | or the symbol t (output appears in the echo area)."); |
38010d50 JB |
1906 | Vstandard_output = Qt; |
1907 | Qstandard_output = intern ("standard-output"); | |
1908 | staticpro (&Qstandard_output); | |
1909 | ||
38010d50 | 1910 | DEFVAR_LISP ("float-output-format", &Vfloat_output_format, |
06ef7355 | 1911 | "The format descriptor string used to print floats.\n\ |
38010d50 JB |
1912 | This is a %-spec like those accepted by `printf' in C,\n\ |
1913 | but with some restrictions. It must start with the two characters `%.'.\n\ | |
1914 | After that comes an integer precision specification,\n\ | |
1915 | and then a letter which controls the format.\n\ | |
1916 | The letters allowed are `e', `f' and `g'.\n\ | |
1917 | Use `e' for exponential notation \"DIG.DIGITSeEXPT\"\n\ | |
1918 | Use `f' for decimal point notation \"DIGITS.DIGITS\".\n\ | |
1919 | Use `g' to choose the shorter of those two formats for the number at hand.\n\ | |
1920 | The precision in any of these cases is the number of digits following\n\ | |
1921 | the decimal point. With `f', a precision of 0 means to omit the\n\ | |
c7b14277 | 1922 | decimal point. 0 is not allowed with `e' or `g'.\n\n\ |
f356c3fb PE |
1923 | A value of nil means to use the shortest notation\n\ |
1924 | that represents the number without losing information."); | |
38010d50 JB |
1925 | Vfloat_output_format = Qnil; |
1926 | Qfloat_output_format = intern ("float-output-format"); | |
1927 | staticpro (&Qfloat_output_format); | |
38010d50 JB |
1928 | |
1929 | DEFVAR_LISP ("print-length", &Vprint_length, | |
aa734e17 | 1930 | "Maximum length of list to print before abbreviating.\n\ |
38010d50 JB |
1931 | A value of nil means no limit."); |
1932 | Vprint_length = Qnil; | |
1933 | ||
1934 | DEFVAR_LISP ("print-level", &Vprint_level, | |
aa734e17 | 1935 | "Maximum depth of list nesting to print before abbreviating.\n\ |
38010d50 JB |
1936 | A value of nil means no limit."); |
1937 | Vprint_level = Qnil; | |
1938 | ||
1939 | DEFVAR_BOOL ("print-escape-newlines", &print_escape_newlines, | |
a8920a17 | 1940 | "Non-nil means print newlines in strings as backslash-n.\n\ |
c6f7982f | 1941 | Also print formfeeds as backslash-f."); |
38010d50 JB |
1942 | print_escape_newlines = 0; |
1943 | ||
38940e93 | 1944 | DEFVAR_BOOL ("print-escape-nonascii", &print_escape_nonascii, |
835d0be6 RS |
1945 | "Non-nil means print unibyte non-ASCII chars in strings as \\OOO.\n\ |
1946 | \(OOO is the octal representation of the character code.)\n\ | |
96aab770 | 1947 | Only single-byte characters are affected, and only in `prin1'."); |
38940e93 RS |
1948 | print_escape_nonascii = 0; |
1949 | ||
835d0be6 RS |
1950 | DEFVAR_BOOL ("print-escape-multibyte", &print_escape_multibyte, |
1951 | "Non-nil means print multibyte characters in strings as \\xXXXX.\n\ | |
1952 | \(XXX is the hex representation of the character code.)\n\ | |
1953 | This affects only `prin1'."); | |
1954 | print_escape_multibyte = 0; | |
1955 | ||
2f100b5c EN |
1956 | DEFVAR_BOOL ("print-quoted", &print_quoted, |
1957 | "Non-nil means print quoted forms with reader syntax.\n\ | |
1958 | I.e., (quote foo) prints as 'foo, (function foo) as #'foo, and, backquoted\n\ | |
1959 | forms print in the new syntax."); | |
1960 | print_quoted = 0; | |
1961 | ||
e0f69431 | 1962 | DEFVAR_LISP ("print-gensym", &Vprint_gensym, |
081e0581 | 1963 | "Non-nil means print uninterned symbols so they will read as uninterned.\n\ |
265375e7 | 1964 | I.e., the value of (make-symbol \"foobar\") prints as #:foobar.\n\ |
0f25ecc6 RS |
1965 | When the uninterned symbol appears within a recursive data structure\n\ |
1966 | and the symbol appears more than once, in addition use the #N# and #N=\n\ | |
1967 | constructs as needed, so that multiple references to the same symbol are\n\ | |
1968 | shared once again when the text is read back."); | |
e0f69431 RS |
1969 | Vprint_gensym = Qnil; |
1970 | ||
0f25ecc6 RS |
1971 | DEFVAR_LISP ("print-circle", &Vprint_circle, |
1972 | "*Non-nil means print recursive structures using #N= and #N# syntax.\n\ | |
1973 | If nil, printing proceeds recursively and may lead to\n\ | |
1974 | `max-lisp-eval-depth' being exceeded or an error may occur:\n\ | |
1975 | \"Apparently circular structure being printed.\" Also see\n\ | |
1976 | `print-length' and `print-level'.\n\ | |
1977 | If non-nil, shared substructures anywhere in the structure are printed\n\ | |
1978 | with `#N=' before the first occurrence (in the order of the print\n\ | |
1979 | representation) and `#N#' in place of each subsequent occurrence,\n\ | |
1980 | where N is a positive decimal integer."); | |
1981 | Vprint_circle = Qnil; | |
1982 | ||
1983 | DEFVAR_LISP ("print-continuous-numbering", &Vprint_continuous_numbering, | |
1984 | "*Non-nil means keep numbering between several print functions.\n\ | |
1985 | See `print-gensym' nad `print-circle'. See also `print-number-table'."); | |
1986 | Vprint_continuous_numbering = Qnil; | |
1987 | ||
1988 | DEFVAR_LISP ("print-number-table", &Vprint_number_table, | |
1989 | "A vector keeping the information of the current printed object.\n\ | |
1990 | This variable shouldn't be modified in Lisp level, but should be binded\n\ | |
1991 | with nil using let at the same position with `print-continuous-numbering',\n\ | |
1992 | so that the value of this variable can be freed after printing."); | |
1993 | Vprint_number_table = Qnil; | |
081e0581 | 1994 | |
38010d50 JB |
1995 | /* prin1_to_string_buffer initialized in init_buffer_once in buffer.c */ |
1996 | staticpro (&Vprin1_to_string_buffer); | |
1997 | ||
1998 | defsubr (&Sprin1); | |
1999 | defsubr (&Sprin1_to_string); | |
113620cc | 2000 | defsubr (&Serror_message_string); |
38010d50 JB |
2001 | defsubr (&Sprinc); |
2002 | defsubr (&Sprint); | |
2003 | defsubr (&Sterpri); | |
2004 | defsubr (&Swrite_char); | |
2005 | defsubr (&Sexternal_debugging_output); | |
2006 | ||
2007 | Qexternal_debugging_output = intern ("external-debugging-output"); | |
2008 | staticpro (&Qexternal_debugging_output); | |
2009 | ||
2f100b5c EN |
2010 | Qprint_escape_newlines = intern ("print-escape-newlines"); |
2011 | staticpro (&Qprint_escape_newlines); | |
2012 | ||
835d0be6 RS |
2013 | Qprint_escape_multibyte = intern ("print-escape-multibyte"); |
2014 | staticpro (&Qprint_escape_multibyte); | |
2015 | ||
2016 | Qprint_escape_nonascii = intern ("print-escape-nonascii"); | |
2017 | staticpro (&Qprint_escape_nonascii); | |
2018 | ||
38010d50 | 2019 | defsubr (&Swith_output_to_temp_buffer); |
38010d50 | 2020 | } |