Commit | Line | Data |
---|---|---|
38010d50 | 1 | /* Lisp object printing and output streams. |
9dffd511 RS |
2 | Copyright (C) 1985, 86, 88, 93, 94, 95, 97, 1998 |
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" |
0137dbf7 | 28 | #include "frame.h" |
38010d50 JB |
29 | #include "window.h" |
30 | #include "process.h" | |
31 | #include "dispextern.h" | |
32 | #include "termchar.h" | |
077d751f | 33 | #include "keyboard.h" |
38010d50 | 34 | |
7651e1f5 RS |
35 | #ifdef USE_TEXT_PROPERTIES |
36 | #include "intervals.h" | |
37 | #endif | |
38 | ||
38010d50 JB |
39 | Lisp_Object Vstandard_output, Qstandard_output; |
40 | ||
d9c21094 RS |
41 | Lisp_Object Qtemp_buffer_setup_hook; |
42 | ||
2f100b5c EN |
43 | /* These are used to print like we read. */ |
44 | extern Lisp_Object Qbackquote, Qcomma, Qcomma_at, Qcomma_dot, Qfunction; | |
45 | ||
38010d50 JB |
46 | #ifdef LISP_FLOAT_TYPE |
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> | |
63 | #include <stdlib.h> | |
64 | #endif | |
65 | ||
66 | /* Default to values appropriate for IEEE floating point. */ | |
67 | #ifndef FLT_RADIX | |
68 | #define FLT_RADIX 2 | |
69 | #endif | |
70 | #ifndef DBL_MANT_DIG | |
71 | #define DBL_MANT_DIG 53 | |
72 | #endif | |
73 | #ifndef DBL_DIG | |
74 | #define DBL_DIG 15 | |
75 | #endif | |
b0a1044b PE |
76 | #ifndef DBL_MIN |
77 | #define DBL_MIN 2.2250738585072014e-308 | |
78 | #endif | |
79 | ||
80 | #ifdef DBL_MIN_REPLACEMENT | |
81 | #undef DBL_MIN | |
82 | #define DBL_MIN DBL_MIN_REPLACEMENT | |
83 | #endif | |
f356c3fb PE |
84 | |
85 | /* Define DOUBLE_DIGITS_BOUND, an upper bound on the number of decimal digits | |
86 | needed to express a float without losing information. | |
87 | The general-case formula is valid for the usual case, IEEE floating point, | |
88 | but many compilers can't optimize the formula to an integer constant, | |
89 | so make a special case for it. */ | |
90 | #if FLT_RADIX == 2 && DBL_MANT_DIG == 53 | |
91 | #define DOUBLE_DIGITS_BOUND 17 /* IEEE floating point */ | |
92 | #else | |
93 | #define DOUBLE_DIGITS_BOUND ((int) ceil (log10 (pow (FLT_RADIX, DBL_MANT_DIG)))) | |
94 | #endif | |
95 | ||
38010d50 JB |
96 | #endif /* LISP_FLOAT_TYPE */ |
97 | ||
98 | /* Avoid actual stack overflow in print. */ | |
99 | int print_depth; | |
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 | |
38010d50 | 188 | \f |
eb8c3be9 | 189 | /* Low level output routines for characters and strings */ |
38010d50 JB |
190 | |
191 | /* Lisp functions to do output using a stream | |
081e0581 EN |
192 | must have the stream in a variable called printcharfun |
193 | and must start with PRINTPREPARE, end with PRINTFINISH, | |
194 | and use PRINTDECLARE to declare common variables. | |
195 | Use PRINTCHAR to output one character, | |
0788646c GM |
196 | or call strout to output a block of characters. */ |
197 | ||
198 | #define PRINTDECLARE \ | |
199 | struct buffer *old = current_buffer; \ | |
200 | int old_point = -1, start_point; \ | |
201 | int old_point_byte, start_point_byte; \ | |
202 | int specpdl_count = specpdl_ptr - specpdl; \ | |
203 | int free_print_buffer = 0; \ | |
204 | int multibyte = !NILP (current_buffer->enable_multibyte_characters); \ | |
081e0581 EN |
205 | Lisp_Object original |
206 | ||
0788646c GM |
207 | #define PRINTPREPARE \ |
208 | original = printcharfun; \ | |
209 | if (NILP (printcharfun)) printcharfun = Qt; \ | |
210 | if (BUFFERP (printcharfun)) \ | |
211 | { \ | |
212 | if (XBUFFER (printcharfun) != current_buffer) \ | |
213 | Fset_buffer (printcharfun); \ | |
214 | printcharfun = Qnil; \ | |
215 | } \ | |
216 | if (MARKERP (printcharfun)) \ | |
217 | { \ | |
218 | if (!(XMARKER (original)->buffer)) \ | |
219 | error ("Marker does not point anywhere"); \ | |
220 | if (XMARKER (original)->buffer != current_buffer) \ | |
221 | set_buffer_internal (XMARKER (original)->buffer); \ | |
222 | old_point = PT; \ | |
223 | old_point_byte = PT_BYTE; \ | |
224 | SET_PT_BOTH (marker_position (printcharfun), \ | |
225 | marker_byte_position (printcharfun)); \ | |
226 | start_point = PT; \ | |
227 | start_point_byte = PT_BYTE; \ | |
228 | printcharfun = Qnil; \ | |
229 | } \ | |
230 | if (NILP (printcharfun)) \ | |
231 | { \ | |
232 | Lisp_Object string; \ | |
233 | if (NILP (current_buffer->enable_multibyte_characters) \ | |
234 | && ! print_escape_multibyte) \ | |
235 | specbind (Qprint_escape_multibyte, Qt); \ | |
236 | if (! NILP (current_buffer->enable_multibyte_characters) \ | |
237 | && ! print_escape_nonascii) \ | |
238 | specbind (Qprint_escape_nonascii, Qt); \ | |
239 | if (print_buffer != 0) \ | |
240 | { \ | |
241 | string = make_string_from_bytes (print_buffer, \ | |
242 | print_buffer_pos, \ | |
243 | print_buffer_pos_byte); \ | |
244 | record_unwind_protect (print_unwind, string); \ | |
245 | } \ | |
246 | else \ | |
247 | { \ | |
248 | print_buffer_size = 1000; \ | |
249 | print_buffer = (char *) xmalloc (print_buffer_size); \ | |
250 | free_print_buffer = 1; \ | |
251 | } \ | |
252 | print_buffer_pos = 0; \ | |
253 | print_buffer_pos_byte = 0; \ | |
254 | } \ | |
255 | if (EQ (printcharfun, Qt)) \ | |
0f25ecc6 | 256 | setup_echo_area_for_printing (multibyte); |
38010d50 | 257 | |
8a2ab0c6 RS |
258 | #define PRINTFINISH \ |
259 | if (NILP (printcharfun)) \ | |
260 | { \ | |
261 | if (print_buffer_pos != print_buffer_pos_byte \ | |
262 | && NILP (current_buffer->enable_multibyte_characters)) \ | |
263 | { \ | |
264 | unsigned char *temp \ | |
265 | = (unsigned char *) alloca (print_buffer_pos + 1); \ | |
266 | copy_text (print_buffer, temp, print_buffer_pos_byte, \ | |
267 | 1, 0); \ | |
268 | insert_1_both (temp, print_buffer_pos, \ | |
269 | print_buffer_pos, 0, 1, 0); \ | |
270 | } \ | |
271 | else \ | |
272 | insert_1_both (print_buffer, print_buffer_pos, \ | |
273 | print_buffer_pos_byte, 0, 1, 0); \ | |
274 | } \ | |
275 | if (free_print_buffer) \ | |
276 | { \ | |
277 | xfree (print_buffer); \ | |
278 | print_buffer = 0; \ | |
279 | } \ | |
280 | unbind_to (specpdl_count, Qnil); \ | |
281 | if (MARKERP (original)) \ | |
282 | set_marker_both (original, Qnil, PT, PT_BYTE); \ | |
283 | if (old_point >= 0) \ | |
284 | SET_PT_BOTH (old_point + (old_point >= start_point \ | |
285 | ? PT - start_point : 0), \ | |
6ddd6eee RS |
286 | old_point_byte + (old_point_byte >= start_point_byte \ |
287 | ? PT_BYTE - start_point_byte : 0)); \ | |
8a2ab0c6 | 288 | if (old != current_buffer) \ |
0f25ecc6 | 289 | set_buffer_internal (old); |
38010d50 JB |
290 | |
291 | #define PRINTCHAR(ch) printchar (ch, printcharfun) | |
292 | ||
09eddb56 RS |
293 | /* Nonzero if there is no room to print any more characters |
294 | so print might as well return right away. */ | |
295 | ||
296 | #define PRINTFULLP() \ | |
297 | (EQ (printcharfun, Qt) && !noninteractive \ | |
298 | && printbufidx >= FRAME_WIDTH (XFRAME (WINDOW_FRAME (XWINDOW (minibuf_window))))) | |
299 | ||
08e8d297 RS |
300 | /* This is used to restore the saved contents of print_buffer |
301 | when there is a recursive call to print. */ | |
0788646c | 302 | |
08e8d297 RS |
303 | static Lisp_Object |
304 | print_unwind (saved_text) | |
305 | Lisp_Object saved_text; | |
306 | { | |
307 | bcopy (XSTRING (saved_text)->data, print_buffer, XSTRING (saved_text)->size); | |
308 | } | |
309 | ||
0788646c GM |
310 | |
311 | /* Print character CH using method FUN. FUN nil means print to | |
312 | print_buffer. FUN t means print to echo area or stdout if | |
313 | non-interactive. If FUN is neither nil nor t, call FUN with CH as | |
314 | argument. */ | |
38010d50 JB |
315 | |
316 | static void | |
317 | printchar (ch, fun) | |
087e3c46 | 318 | unsigned int ch; |
38010d50 JB |
319 | Lisp_Object fun; |
320 | { | |
38010d50 JB |
321 | #ifdef MAX_PRINT_CHARS |
322 | if (max_print) | |
323 | print_chars++; | |
324 | #endif /* MAX_PRINT_CHARS */ | |
38010d50 | 325 | |
0788646c GM |
326 | if (!NILP (fun) && !EQ (fun, Qt)) |
327 | call1 (fun, make_number (ch)); | |
328 | else | |
38010d50 | 329 | { |
087e3c46 KH |
330 | unsigned char work[4], *str; |
331 | int len = CHAR_STRING (ch, work, str); | |
0788646c | 332 | |
09eddb56 | 333 | QUIT; |
0788646c GM |
334 | |
335 | if (NILP (fun)) | |
9a4d01d8 | 336 | { |
0788646c GM |
337 | if (print_buffer_pos_byte + len >= print_buffer_size) |
338 | print_buffer = (char *) xrealloc (print_buffer, | |
339 | print_buffer_size *= 2); | |
340 | bcopy (str, print_buffer + print_buffer_pos_byte, len); | |
341 | print_buffer_pos += 1; | |
342 | print_buffer_pos_byte += len; | |
9a4d01d8 | 343 | } |
0788646c | 344 | else if (noninteractive) |
1134b854 | 345 | { |
0788646c GM |
346 | fwrite (str, 1, len, stdout); |
347 | noninteractive_need_newline = 1; | |
1134b854 | 348 | } |
0788646c | 349 | else |
d366d2e4 | 350 | { |
0788646c GM |
351 | int multibyte_p |
352 | = !NILP (current_buffer->enable_multibyte_characters); | |
353 | ||
354 | if (!message_buf_print) | |
355 | setup_echo_area_for_printing (multibyte_p); | |
356 | ||
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 | |
370 | non-zero means PTR contains multibyte characters. */ | |
371 | ||
38010d50 | 372 | static void |
dc2a0b79 | 373 | strout (ptr, size, size_byte, printcharfun, multibyte) |
38010d50 | 374 | char *ptr; |
dc2a0b79 | 375 | int size, size_byte; |
38010d50 | 376 | Lisp_Object printcharfun; |
dc2a0b79 | 377 | int multibyte; |
38010d50 | 378 | { |
087e3c46 | 379 | if (size < 0) |
dc2a0b79 | 380 | size_byte = size = strlen (ptr); |
087e3c46 | 381 | |
0788646c | 382 | if (NILP (printcharfun)) |
38010d50 | 383 | { |
dc2a0b79 | 384 | if (print_buffer_pos_byte + size_byte > print_buffer_size) |
6fec5601 | 385 | { |
dc2a0b79 | 386 | print_buffer_size = print_buffer_size * 2 + size_byte; |
6fec5601 RS |
387 | print_buffer = (char *) xrealloc (print_buffer, |
388 | print_buffer_size); | |
389 | } | |
dc2a0b79 | 390 | bcopy (ptr, print_buffer + print_buffer_pos_byte, size_byte); |
6fec5601 | 391 | print_buffer_pos += size; |
dc2a0b79 | 392 | print_buffer_pos_byte += size_byte; |
6fec5601 | 393 | |
38010d50 JB |
394 | #ifdef MAX_PRINT_CHARS |
395 | if (max_print) | |
6fec5601 | 396 | print_chars += size; |
38010d50 | 397 | #endif /* MAX_PRINT_CHARS */ |
38010d50 | 398 | } |
0788646c | 399 | else if (noninteractive) |
38010d50 | 400 | { |
0788646c GM |
401 | fwrite (ptr, 1, size_byte, stdout); |
402 | noninteractive_need_newline = 1; | |
403 | } | |
404 | else if (EQ (printcharfun, Qt)) | |
405 | { | |
406 | /* Output to echo area. We're trying to avoid a little overhead | |
407 | here, that's the reason we don't call printchar to do the | |
408 | job. */ | |
409 | int i; | |
410 | int multibyte_p | |
411 | = !NILP (current_buffer->enable_multibyte_characters); | |
412 | ||
413 | if (!message_buf_print) | |
414 | setup_echo_area_for_printing (multibyte_p); | |
415 | ||
416 | message_dolog (ptr, size_byte, 0, multibyte_p); | |
417 | ||
418 | if (size == size_byte) | |
38010d50 | 419 | { |
0788646c GM |
420 | for (i = 0; i < size; ++i) |
421 | insert_char (*ptr++); | |
38010d50 | 422 | } |
0788646c | 423 | else |
38010d50 | 424 | { |
0788646c GM |
425 | int len; |
426 | for (i = 0; i < size_byte; i += len) | |
aec2b95b | 427 | { |
0788646c GM |
428 | int ch = STRING_CHAR_AND_LENGTH (ptr + i, size_byte - i, len); |
429 | insert_char (ch); | |
aec2b95b | 430 | } |
38010d50 | 431 | } |
0788646c GM |
432 | |
433 | #ifdef MAX_PRINT_CHARS | |
434 | if (max_print) | |
435 | print_chars += size; | |
436 | #endif /* MAX_PRINT_CHARS */ | |
437 | } | |
438 | else | |
439 | { | |
440 | /* PRINTCHARFUN is a Lisp function. */ | |
441 | int i = 0; | |
38010d50 | 442 | |
0788646c | 443 | if (size == size_byte) |
4ad8bb20 | 444 | { |
0788646c | 445 | while (i < size_byte) |
4ad8bb20 | 446 | { |
0788646c GM |
447 | int ch = ptr[i++]; |
448 | PRINTCHAR (ch); | |
4ad8bb20 | 449 | } |
4ad8bb20 | 450 | } |
0788646c | 451 | else |
087e3c46 | 452 | { |
0788646c GM |
453 | while (i < size_byte) |
454 | { | |
455 | /* Here, we must convert each multi-byte form to the | |
456 | corresponding character code before handing it to | |
457 | PRINTCHAR. */ | |
458 | int len; | |
459 | int ch = STRING_CHAR_AND_LENGTH (ptr + i, size_byte - i, len); | |
460 | PRINTCHAR (ch); | |
461 | i += len; | |
462 | } | |
087e3c46 | 463 | } |
38010d50 | 464 | } |
38010d50 JB |
465 | } |
466 | ||
467 | /* Print the contents of a string STRING using PRINTCHARFUN. | |
ed2c35ef RS |
468 | It isn't safe to use strout in many cases, |
469 | because printing one char can relocate. */ | |
38010d50 | 470 | |
dc2a0b79 | 471 | static void |
38010d50 JB |
472 | print_string (string, printcharfun) |
473 | Lisp_Object string; | |
474 | Lisp_Object printcharfun; | |
475 | { | |
6fec5601 | 476 | if (EQ (printcharfun, Qt) || NILP (printcharfun)) |
375fcc09 KH |
477 | { |
478 | int chars; | |
479 | ||
480 | if (STRING_MULTIBYTE (string)) | |
481 | chars = XSTRING (string)->size; | |
482 | else if (EQ (printcharfun, Qt) | |
483 | ? ! NILP (buffer_defaults.enable_multibyte_characters) | |
484 | : ! NILP (current_buffer->enable_multibyte_characters)) | |
485 | chars = multibyte_chars_in_text (XSTRING (string)->data, | |
486 | STRING_BYTES (XSTRING (string))); | |
487 | else | |
488 | chars = STRING_BYTES (XSTRING (string)); | |
489 | ||
490 | /* strout is safe for output to a frame (echo area) or to print_buffer. */ | |
491 | strout (XSTRING (string)->data, | |
492 | chars, STRING_BYTES (XSTRING (string)), | |
493 | printcharfun, STRING_MULTIBYTE (string)); | |
494 | } | |
38010d50 JB |
495 | else |
496 | { | |
dc2a0b79 RS |
497 | /* Otherwise, string may be relocated by printing one char. |
498 | So re-fetch the string address for each character. */ | |
38010d50 JB |
499 | int i; |
500 | int size = XSTRING (string)->size; | |
fc932ac6 | 501 | int size_byte = STRING_BYTES (XSTRING (string)); |
38010d50 JB |
502 | struct gcpro gcpro1; |
503 | GCPRO1 (string); | |
dc2a0b79 RS |
504 | if (size == size_byte) |
505 | for (i = 0; i < size; i++) | |
506 | PRINTCHAR (XSTRING (string)->data[i]); | |
507 | else | |
508 | for (i = 0; i < size_byte; i++) | |
509 | { | |
510 | /* Here, we must convert each multi-byte form to the | |
511 | corresponding character code before handing it to PRINTCHAR. */ | |
512 | int len; | |
765fe1d0 KH |
513 | int ch = STRING_CHAR_AND_LENGTH (XSTRING (string)->data + i, |
514 | size_byte - i, len); | |
da1ad4e7 KH |
515 | if (!CHAR_VALID_P (ch, 0)) |
516 | { | |
517 | ch = XSTRING (string)->data[i]; | |
518 | len = 1; | |
519 | } | |
dc2a0b79 RS |
520 | PRINTCHAR (ch); |
521 | i += len; | |
522 | } | |
38010d50 JB |
523 | UNGCPRO; |
524 | } | |
525 | } | |
526 | \f | |
527 | DEFUN ("write-char", Fwrite_char, Swrite_char, 1, 2, 0, | |
3738a371 | 528 | "Output character CHARACTER to stream PRINTCHARFUN.\n\ |
57c9eb68 | 529 | PRINTCHARFUN defaults to the value of `standard-output' (which see).") |
3738a371 EN |
530 | (character, printcharfun) |
531 | Lisp_Object character, printcharfun; | |
38010d50 | 532 | { |
081e0581 | 533 | PRINTDECLARE; |
38010d50 | 534 | |
10eebdbb | 535 | if (NILP (printcharfun)) |
38010d50 | 536 | printcharfun = Vstandard_output; |
3738a371 | 537 | CHECK_NUMBER (character, 0); |
38010d50 | 538 | PRINTPREPARE; |
3738a371 | 539 | PRINTCHAR (XINT (character)); |
38010d50 | 540 | PRINTFINISH; |
3738a371 | 541 | return character; |
38010d50 JB |
542 | } |
543 | ||
dc2a0b79 RS |
544 | /* Used from outside of print.c to print a block of SIZE |
545 | single-byte chars at DATA on the default output stream. | |
38010d50 JB |
546 | Do not use this on the contents of a Lisp string. */ |
547 | ||
dc22f25e | 548 | void |
38010d50 JB |
549 | write_string (data, size) |
550 | char *data; | |
551 | int size; | |
552 | { | |
081e0581 | 553 | PRINTDECLARE; |
38010d50 | 554 | Lisp_Object printcharfun; |
38010d50 JB |
555 | |
556 | printcharfun = Vstandard_output; | |
557 | ||
558 | PRINTPREPARE; | |
dc2a0b79 | 559 | strout (data, size, size, printcharfun, 0); |
38010d50 JB |
560 | PRINTFINISH; |
561 | } | |
562 | ||
dc2a0b79 RS |
563 | /* Used from outside of print.c to print a block of SIZE |
564 | single-byte chars at DATA on a specified stream PRINTCHARFUN. | |
38010d50 JB |
565 | Do not use this on the contents of a Lisp string. */ |
566 | ||
dc22f25e | 567 | void |
38010d50 JB |
568 | write_string_1 (data, size, printcharfun) |
569 | char *data; | |
570 | int size; | |
571 | Lisp_Object printcharfun; | |
572 | { | |
081e0581 | 573 | PRINTDECLARE; |
38010d50 JB |
574 | |
575 | PRINTPREPARE; | |
dc2a0b79 | 576 | strout (data, size, size, printcharfun, 0); |
38010d50 JB |
577 | PRINTFINISH; |
578 | } | |
579 | ||
580 | ||
38010d50 JB |
581 | void |
582 | temp_output_buffer_setup (bufname) | |
583 | char *bufname; | |
584 | { | |
d9c21094 | 585 | int count = specpdl_ptr - specpdl; |
38010d50 JB |
586 | register struct buffer *old = current_buffer; |
587 | register Lisp_Object buf; | |
588 | ||
d9c21094 RS |
589 | record_unwind_protect (set_buffer_if_live, Fcurrent_buffer ()); |
590 | ||
38010d50 JB |
591 | Fset_buffer (Fget_buffer_create (build_string (bufname))); |
592 | ||
2a1c968a | 593 | current_buffer->directory = old->directory; |
38010d50 | 594 | current_buffer->read_only = Qnil; |
c5c6d57c KH |
595 | current_buffer->filename = Qnil; |
596 | current_buffer->undo_list = Qt; | |
597 | current_buffer->overlays_before = Qnil; | |
598 | current_buffer->overlays_after = Qnil; | |
599 | current_buffer->enable_multibyte_characters | |
600 | = buffer_defaults.enable_multibyte_characters; | |
38010d50 | 601 | Ferase_buffer (); |
633307b5 | 602 | XSETBUFFER (buf, current_buffer); |
38010d50 | 603 | |
d9c21094 RS |
604 | call1 (Vrun_hooks, Qtemp_buffer_setup_hook); |
605 | ||
606 | unbind_to (count, Qnil); | |
607 | ||
608 | specbind (Qstandard_output, buf); | |
38010d50 JB |
609 | } |
610 | ||
611 | Lisp_Object | |
612 | internal_with_output_to_temp_buffer (bufname, function, args) | |
613 | char *bufname; | |
dfcf069d | 614 | Lisp_Object (*function) P_ ((Lisp_Object)); |
38010d50 JB |
615 | Lisp_Object args; |
616 | { | |
617 | int count = specpdl_ptr - specpdl; | |
618 | Lisp_Object buf, val; | |
0ab39c81 | 619 | struct gcpro gcpro1; |
38010d50 | 620 | |
0ab39c81 | 621 | GCPRO1 (args); |
38010d50 JB |
622 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); |
623 | temp_output_buffer_setup (bufname); | |
624 | buf = Vstandard_output; | |
0ab39c81 | 625 | UNGCPRO; |
38010d50 JB |
626 | |
627 | val = (*function) (args); | |
628 | ||
0ab39c81 | 629 | GCPRO1 (val); |
38010d50 | 630 | temp_output_buffer_show (buf); |
0ab39c81 | 631 | UNGCPRO; |
38010d50 JB |
632 | |
633 | return unbind_to (count, val); | |
634 | } | |
635 | ||
636 | DEFUN ("with-output-to-temp-buffer", Fwith_output_to_temp_buffer, Swith_output_to_temp_buffer, | |
637 | 1, UNEVALLED, 0, | |
638 | "Bind `standard-output' to buffer BUFNAME, eval BODY, then show that buffer.\n\ | |
639 | The buffer is cleared out initially, and marked as unmodified when done.\n\ | |
640 | All output done by BODY is inserted in that buffer by default.\n\ | |
641 | The buffer is displayed in another window, but not selected.\n\ | |
642 | The value of the last form in BODY is returned.\n\ | |
d9c21094 RS |
643 | If BODY does not finish normally, the buffer BUFNAME is not displayed.\n\ |
644 | \n\ | |
645 | The hook `temp-buffer-setup-hook' is run before BODY,\n\ | |
646 | with the buffer BUFNAME temporarily current.\n\ | |
647 | The hook `temp-buffer-show-hook' is run after the buffer is displayed,\n\ | |
648 | with the buffer temporarily current, and the window that was used\n\ | |
649 | to display it temporarily selected.\n\ | |
650 | \n\ | |
483288d7 | 651 | If variable `temp-buffer-show-function' is non-nil, call it at the end\n\ |
451f7df8 DL |
652 | to get the buffer displayed instead of just displaying the non-selected\n\ |
653 | buffer and calling the hook. It gets one argument, the buffer to display.") | |
38010d50 JB |
654 | (args) |
655 | Lisp_Object args; | |
656 | { | |
657 | struct gcpro gcpro1; | |
658 | Lisp_Object name; | |
659 | int count = specpdl_ptr - specpdl; | |
660 | Lisp_Object buf, val; | |
661 | ||
662 | GCPRO1(args); | |
663 | name = Feval (Fcar (args)); | |
664 | UNGCPRO; | |
665 | ||
666 | CHECK_STRING (name, 0); | |
667 | temp_output_buffer_setup (XSTRING (name)->data); | |
668 | buf = Vstandard_output; | |
669 | ||
670 | val = Fprogn (Fcdr (args)); | |
671 | ||
672 | temp_output_buffer_show (buf); | |
673 | ||
674 | return unbind_to (count, val); | |
675 | } | |
0788646c | 676 | |
38010d50 JB |
677 | \f |
678 | static void print (); | |
0f25ecc6 RS |
679 | static void print_preprocess (); |
680 | #ifdef USE_TEXT_PROPERTIES | |
681 | static void print_preprocess_string (); | |
682 | #endif /* USE_TEXT_PROPERTIES */ | |
683 | static void print_object (); | |
38010d50 JB |
684 | |
685 | DEFUN ("terpri", Fterpri, Sterpri, 0, 1, 0, | |
57c9eb68 KH |
686 | "Output a newline to stream PRINTCHARFUN.\n\ |
687 | If PRINTCHARFUN is omitted or nil, the value of `standard-output' is used.") | |
38010d50 JB |
688 | (printcharfun) |
689 | Lisp_Object printcharfun; | |
690 | { | |
081e0581 | 691 | PRINTDECLARE; |
38010d50 | 692 | |
10eebdbb | 693 | if (NILP (printcharfun)) |
38010d50 JB |
694 | printcharfun = Vstandard_output; |
695 | PRINTPREPARE; | |
696 | PRINTCHAR ('\n'); | |
697 | PRINTFINISH; | |
698 | return Qt; | |
699 | } | |
700 | ||
701 | DEFUN ("prin1", Fprin1, Sprin1, 1, 2, 0, | |
702 | "Output the printed representation of OBJECT, any Lisp object.\n\ | |
703 | Quoting characters are printed when needed to make output that `read'\n\ | |
704 | can handle, whenever this is possible.\n\ | |
57c9eb68 | 705 | Output stream is PRINTCHARFUN, or value of `standard-output' (which see).") |
3738a371 EN |
706 | (object, printcharfun) |
707 | Lisp_Object object, printcharfun; | |
38010d50 | 708 | { |
081e0581 | 709 | PRINTDECLARE; |
38010d50 JB |
710 | |
711 | #ifdef MAX_PRINT_CHARS | |
712 | max_print = 0; | |
713 | #endif /* MAX_PRINT_CHARS */ | |
10eebdbb | 714 | if (NILP (printcharfun)) |
38010d50 JB |
715 | printcharfun = Vstandard_output; |
716 | PRINTPREPARE; | |
3738a371 | 717 | print (object, printcharfun, 1); |
38010d50 | 718 | PRINTFINISH; |
3738a371 | 719 | return object; |
38010d50 JB |
720 | } |
721 | ||
722 | /* a buffer which is used to hold output being built by prin1-to-string */ | |
723 | Lisp_Object Vprin1_to_string_buffer; | |
724 | ||
725 | DEFUN ("prin1-to-string", Fprin1_to_string, Sprin1_to_string, 1, 2, 0, | |
726 | "Return a string containing the printed representation of OBJECT,\n\ | |
727 | any Lisp object. Quoting characters are used when needed to make output\n\ | |
728 | that `read' can handle, whenever this is possible, unless the optional\n\ | |
729 | second argument NOESCAPE is non-nil.") | |
3738a371 EN |
730 | (object, noescape) |
731 | Lisp_Object object, noescape; | |
38010d50 | 732 | { |
081e0581 EN |
733 | PRINTDECLARE; |
734 | Lisp_Object printcharfun; | |
2a42e8f6 KH |
735 | struct gcpro gcpro1, gcpro2; |
736 | Lisp_Object tem; | |
737 | ||
738 | /* Save and restore this--we are altering a buffer | |
739 | but we don't want to deactivate the mark just for that. | |
740 | No need for specbind, since errors deactivate the mark. */ | |
741 | tem = Vdeactivate_mark; | |
742 | GCPRO2 (object, tem); | |
38010d50 JB |
743 | |
744 | printcharfun = Vprin1_to_string_buffer; | |
745 | PRINTPREPARE; | |
3738a371 | 746 | print (object, printcharfun, NILP (noescape)); |
38010d50 JB |
747 | /* Make Vprin1_to_string_buffer be the default buffer after PRINTFINSH */ |
748 | PRINTFINISH; | |
749 | set_buffer_internal (XBUFFER (Vprin1_to_string_buffer)); | |
3738a371 | 750 | object = Fbuffer_string (); |
38010d50 | 751 | |
38010d50 JB |
752 | Ferase_buffer (); |
753 | set_buffer_internal (old); | |
2a42e8f6 KH |
754 | |
755 | Vdeactivate_mark = tem; | |
38010d50 JB |
756 | UNGCPRO; |
757 | ||
3738a371 | 758 | return object; |
38010d50 JB |
759 | } |
760 | ||
761 | DEFUN ("princ", Fprinc, Sprinc, 1, 2, 0, | |
762 | "Output the printed representation of OBJECT, any Lisp object.\n\ | |
763 | No quoting characters are used; no delimiters are printed around\n\ | |
764 | the contents of strings.\n\ | |
57c9eb68 | 765 | Output stream is PRINTCHARFUN, or value of standard-output (which see).") |
3738a371 EN |
766 | (object, printcharfun) |
767 | Lisp_Object object, printcharfun; | |
38010d50 | 768 | { |
081e0581 | 769 | PRINTDECLARE; |
38010d50 | 770 | |
10eebdbb | 771 | if (NILP (printcharfun)) |
38010d50 JB |
772 | printcharfun = Vstandard_output; |
773 | PRINTPREPARE; | |
3738a371 | 774 | print (object, printcharfun, 0); |
38010d50 | 775 | PRINTFINISH; |
3738a371 | 776 | return object; |
38010d50 JB |
777 | } |
778 | ||
779 | DEFUN ("print", Fprint, Sprint, 1, 2, 0, | |
780 | "Output the printed representation of OBJECT, with newlines around it.\n\ | |
781 | Quoting characters are printed when needed to make output that `read'\n\ | |
782 | can handle, whenever this is possible.\n\ | |
57c9eb68 | 783 | Output stream is PRINTCHARFUN, or value of `standard-output' (which see).") |
3738a371 EN |
784 | (object, printcharfun) |
785 | Lisp_Object object, printcharfun; | |
38010d50 | 786 | { |
081e0581 | 787 | PRINTDECLARE; |
38010d50 JB |
788 | struct gcpro gcpro1; |
789 | ||
790 | #ifdef MAX_PRINT_CHARS | |
791 | print_chars = 0; | |
792 | max_print = MAX_PRINT_CHARS; | |
793 | #endif /* MAX_PRINT_CHARS */ | |
10eebdbb | 794 | if (NILP (printcharfun)) |
38010d50 | 795 | printcharfun = Vstandard_output; |
3738a371 | 796 | GCPRO1 (object); |
38010d50 | 797 | PRINTPREPARE; |
38010d50 | 798 | PRINTCHAR ('\n'); |
3738a371 | 799 | print (object, printcharfun, 1); |
38010d50 JB |
800 | PRINTCHAR ('\n'); |
801 | PRINTFINISH; | |
802 | #ifdef MAX_PRINT_CHARS | |
803 | max_print = 0; | |
804 | print_chars = 0; | |
805 | #endif /* MAX_PRINT_CHARS */ | |
806 | UNGCPRO; | |
3738a371 | 807 | return object; |
38010d50 JB |
808 | } |
809 | ||
810 | /* The subroutine object for external-debugging-output is kept here | |
811 | for the convenience of the debugger. */ | |
812 | Lisp_Object Qexternal_debugging_output; | |
813 | ||
4746118a JB |
814 | DEFUN ("external-debugging-output", Fexternal_debugging_output, Sexternal_debugging_output, 1, 1, 0, |
815 | "Write CHARACTER to stderr.\n\ | |
38010d50 JB |
816 | You can call print while debugging emacs, and pass it this function\n\ |
817 | to make it write to the debugging output.\n") | |
4746118a JB |
818 | (character) |
819 | Lisp_Object character; | |
38010d50 JB |
820 | { |
821 | CHECK_NUMBER (character, 0); | |
822 | putc (XINT (character), stderr); | |
cd22039d RS |
823 | |
824 | #ifdef WINDOWSNT | |
825 | /* Send the output to a debugger (nothing happens if there isn't one). */ | |
826 | { | |
827 | char buf[2] = {(char) XINT (character), '\0'}; | |
828 | OutputDebugString (buf); | |
829 | } | |
830 | #endif | |
831 | ||
38010d50 JB |
832 | return character; |
833 | } | |
cf1bb91b RS |
834 | |
835 | /* This is the interface for debugging printing. */ | |
836 | ||
837 | void | |
838 | debug_print (arg) | |
839 | Lisp_Object arg; | |
840 | { | |
841 | Fprin1 (arg, Qexternal_debugging_output); | |
3684eb78 | 842 | fprintf (stderr, "\r\n"); |
cf1bb91b | 843 | } |
38010d50 | 844 | \f |
113620cc KH |
845 | DEFUN ("error-message-string", Ferror_message_string, Serror_message_string, |
846 | 1, 1, 0, | |
847 | "Convert an error value (ERROR-SYMBOL . DATA) to an error message.") | |
848 | (obj) | |
849 | Lisp_Object obj; | |
850 | { | |
851 | struct buffer *old = current_buffer; | |
852 | Lisp_Object original, printcharfun, value; | |
853 | struct gcpro gcpro1; | |
854 | ||
0872e11f RS |
855 | /* If OBJ is (error STRING), just return STRING. |
856 | That is not only faster, it also avoids the need to allocate | |
857 | space here when the error is due to memory full. */ | |
858 | if (CONSP (obj) && EQ (XCONS (obj)->car, Qerror) | |
859 | && CONSP (XCONS (obj)->cdr) | |
860 | && STRINGP (XCONS (XCONS (obj)->cdr)->car) | |
861 | && NILP (XCONS (XCONS (obj)->cdr)->cdr)) | |
862 | return XCONS (XCONS (obj)->cdr)->car; | |
863 | ||
dc22f25e | 864 | print_error_message (obj, Vprin1_to_string_buffer); |
113620cc KH |
865 | |
866 | set_buffer_internal (XBUFFER (Vprin1_to_string_buffer)); | |
867 | value = Fbuffer_string (); | |
868 | ||
869 | GCPRO1 (value); | |
870 | Ferase_buffer (); | |
871 | set_buffer_internal (old); | |
872 | UNGCPRO; | |
873 | ||
874 | return value; | |
875 | } | |
876 | ||
877 | /* Print an error message for the error DATA | |
878 | onto Lisp output stream STREAM (suitable for the print functions). */ | |
879 | ||
dc22f25e | 880 | void |
113620cc KH |
881 | print_error_message (data, stream) |
882 | Lisp_Object data, stream; | |
883 | { | |
884 | Lisp_Object errname, errmsg, file_error, tail; | |
885 | struct gcpro gcpro1; | |
886 | int i; | |
887 | ||
888 | errname = Fcar (data); | |
889 | ||
890 | if (EQ (errname, Qerror)) | |
891 | { | |
892 | data = Fcdr (data); | |
893 | if (!CONSP (data)) data = Qnil; | |
894 | errmsg = Fcar (data); | |
895 | file_error = Qnil; | |
896 | } | |
897 | else | |
898 | { | |
899 | errmsg = Fget (errname, Qerror_message); | |
900 | file_error = Fmemq (Qfile_error, | |
901 | Fget (errname, Qerror_conditions)); | |
902 | } | |
903 | ||
904 | /* Print an error message including the data items. */ | |
905 | ||
906 | tail = Fcdr_safe (data); | |
907 | GCPRO1 (tail); | |
908 | ||
909 | /* For file-error, make error message by concatenating | |
910 | all the data items. They are all strings. */ | |
8c29413d | 911 | if (!NILP (file_error) && CONSP (tail)) |
113620cc KH |
912 | errmsg = XCONS (tail)->car, tail = XCONS (tail)->cdr; |
913 | ||
914 | if (STRINGP (errmsg)) | |
915 | Fprinc (errmsg, stream); | |
916 | else | |
917 | write_string_1 ("peculiar error", -1, stream); | |
918 | ||
919 | for (i = 0; CONSP (tail); tail = Fcdr (tail), i++) | |
920 | { | |
921 | write_string_1 (i ? ", " : ": ", 2, stream); | |
922 | if (!NILP (file_error)) | |
923 | Fprinc (Fcar (tail), stream); | |
924 | else | |
925 | Fprin1 (Fcar (tail), stream); | |
926 | } | |
927 | UNGCPRO; | |
928 | } | |
929 | \f | |
38010d50 JB |
930 | #ifdef LISP_FLOAT_TYPE |
931 | ||
38010d50 | 932 | /* |
edb2a707 | 933 | * The buffer should be at least as large as the max string size of the |
8e6208c5 | 934 | * largest float, printed in the biggest notation. This is undoubtedly |
38010d50 JB |
935 | * 20d float_output_format, with the negative of the C-constant "HUGE" |
936 | * from <math.h>. | |
937 | * | |
938 | * On the vax the worst case is -1e38 in 20d format which takes 61 bytes. | |
939 | * | |
940 | * I assume that IEEE-754 format numbers can take 329 bytes for the worst | |
941 | * case of -1e307 in 20d float_output_format. What is one to do (short of | |
942 | * re-writing _doprnt to be more sane)? | |
943 | * -wsr | |
944 | */ | |
edb2a707 RS |
945 | |
946 | void | |
947 | float_to_string (buf, data) | |
8b24d146 | 948 | unsigned char *buf; |
38010d50 JB |
949 | double data; |
950 | { | |
c7b14277 | 951 | unsigned char *cp; |
322890c4 | 952 | int width; |
38010d50 | 953 | |
7f45de2d RS |
954 | /* Check for plus infinity in a way that won't lose |
955 | if there is no plus infinity. */ | |
956 | if (data == data / 2 && data > 1.0) | |
957 | { | |
958 | strcpy (buf, "1.0e+INF"); | |
959 | return; | |
960 | } | |
961 | /* Likewise for minus infinity. */ | |
962 | if (data == data / 2 && data < -1.0) | |
963 | { | |
964 | strcpy (buf, "-1.0e+INF"); | |
965 | return; | |
966 | } | |
967 | /* Check for NaN in a way that won't fail if there are no NaNs. */ | |
968 | if (! (data * 0.0 >= 0.0)) | |
969 | { | |
970 | strcpy (buf, "0.0e+NaN"); | |
971 | return; | |
972 | } | |
973 | ||
10eebdbb | 974 | if (NILP (Vfloat_output_format) |
d4ae1f7e | 975 | || !STRINGP (Vfloat_output_format)) |
38010d50 | 976 | lose: |
322890c4 | 977 | { |
f356c3fb PE |
978 | /* Generate the fewest number of digits that represent the |
979 | floating point value without losing information. | |
980 | The following method is simple but a bit slow. | |
981 | For ideas about speeding things up, please see: | |
982 | ||
983 | Guy L Steele Jr & Jon L White, How to print floating-point numbers | |
984 | accurately. SIGPLAN notices 25, 6 (June 1990), 112-126. | |
985 | ||
986 | Robert G Burger & R Kent Dybvig, Printing floating point numbers | |
987 | quickly and accurately, SIGPLAN notices 31, 5 (May 1996), 108-116. */ | |
988 | ||
989 | width = fabs (data) < DBL_MIN ? 1 : DBL_DIG; | |
990 | do | |
991 | sprintf (buf, "%.*g", width, data); | |
992 | while (width++ < DOUBLE_DIGITS_BOUND && atof (buf) != data); | |
322890c4 | 993 | } |
38010d50 JB |
994 | else /* oink oink */ |
995 | { | |
996 | /* Check that the spec we have is fully valid. | |
997 | This means not only valid for printf, | |
998 | but meant for floats, and reasonable. */ | |
999 | cp = XSTRING (Vfloat_output_format)->data; | |
1000 | ||
1001 | if (cp[0] != '%') | |
1002 | goto lose; | |
1003 | if (cp[1] != '.') | |
1004 | goto lose; | |
1005 | ||
1006 | cp += 2; | |
c7b14277 JB |
1007 | |
1008 | /* Check the width specification. */ | |
322890c4 | 1009 | width = -1; |
c7b14277 | 1010 | if ('0' <= *cp && *cp <= '9') |
381cd4bb KH |
1011 | { |
1012 | width = 0; | |
1013 | do | |
1014 | width = (width * 10) + (*cp++ - '0'); | |
1015 | while (*cp >= '0' && *cp <= '9'); | |
1016 | ||
1017 | /* A precision of zero is valid only for %f. */ | |
1018 | if (width > DBL_DIG | |
1019 | || (width == 0 && *cp != 'f')) | |
1020 | goto lose; | |
1021 | } | |
38010d50 JB |
1022 | |
1023 | if (*cp != 'e' && *cp != 'f' && *cp != 'g') | |
1024 | goto lose; | |
1025 | ||
38010d50 JB |
1026 | if (cp[1] != 0) |
1027 | goto lose; | |
1028 | ||
1029 | sprintf (buf, XSTRING (Vfloat_output_format)->data, data); | |
1030 | } | |
edb2a707 | 1031 | |
c7b14277 JB |
1032 | /* Make sure there is a decimal point with digit after, or an |
1033 | exponent, so that the value is readable as a float. But don't do | |
322890c4 RS |
1034 | this with "%.0f"; it's valid for that not to produce a decimal |
1035 | point. Note that width can be 0 only for %.0f. */ | |
1036 | if (width != 0) | |
0601fd3d | 1037 | { |
c7b14277 JB |
1038 | for (cp = buf; *cp; cp++) |
1039 | if ((*cp < '0' || *cp > '9') && *cp != '-') | |
1040 | break; | |
0601fd3d | 1041 | |
c7b14277 JB |
1042 | if (*cp == '.' && cp[1] == 0) |
1043 | { | |
1044 | cp[1] = '0'; | |
1045 | cp[2] = 0; | |
1046 | } | |
1047 | ||
1048 | if (*cp == 0) | |
1049 | { | |
1050 | *cp++ = '.'; | |
1051 | *cp++ = '0'; | |
1052 | *cp++ = 0; | |
1053 | } | |
edb2a707 | 1054 | } |
38010d50 JB |
1055 | } |
1056 | #endif /* LISP_FLOAT_TYPE */ | |
1057 | \f | |
1058 | static void | |
1059 | print (obj, printcharfun, escapeflag) | |
38010d50 | 1060 | Lisp_Object obj; |
38010d50 JB |
1061 | register Lisp_Object printcharfun; |
1062 | int escapeflag; | |
1063 | { | |
0f25ecc6 | 1064 | print_depth = 0; |
38010d50 | 1065 | |
0f25ecc6 RS |
1066 | /* Reset print_number_index and Vprint_number_table only when |
1067 | the variable Vprint_continuous_numbering is nil. Otherwise, | |
1068 | the values of these variables will be kept between several | |
1069 | print functions. */ | |
1070 | if (NILP (Vprint_continuous_numbering)) | |
1071 | { | |
1072 | print_number_index = 0; | |
1073 | Vprint_number_table = Qnil; | |
1074 | } | |
38010d50 | 1075 | |
0f25ecc6 RS |
1076 | /* Construct Vprint_number_table for print-gensym and print-circle. */ |
1077 | if (!NILP (Vprint_gensym) || !NILP (Vprint_circle)) | |
ec838c39 | 1078 | { |
0f25ecc6 RS |
1079 | int i, index = 0; |
1080 | /* Construct Vprint_number_table. */ | |
1081 | print_preprocess (obj); | |
1082 | /* Remove unnecessary objects, which appear only once in OBJ; | |
1083 | that is, whose status is Qnil. */ | |
1084 | for (i = 0; i < print_number_index; i++) | |
1085 | if (!NILP (PRINT_NUMBER_STATUS (Vprint_number_table, i))) | |
1086 | { | |
1087 | PRINT_NUMBER_OBJECT (Vprint_number_table, index) | |
1088 | = PRINT_NUMBER_OBJECT (Vprint_number_table, i); | |
1089 | /* Reset the status field for the next print step. Now this | |
1090 | field means whether the object has already been printed. */ | |
1091 | PRINT_NUMBER_STATUS (Vprint_number_table, index) = Qnil; | |
1092 | index++; | |
1093 | } | |
1094 | print_number_index = index; | |
1095 | } | |
1096 | ||
1097 | print_object (obj, printcharfun, escapeflag); | |
1098 | } | |
1099 | ||
1100 | /* Construct Vprint_number_table according to the structure of OBJ. | |
1101 | OBJ itself and all its elements will be added to Vprint_number_table | |
1102 | recursively if it is a list, vector, compiled function, char-table, | |
1103 | string (its text properties will be traced), or a symbol that has | |
1104 | no obarray (this is for the print-gensym feature). | |
1105 | The status fields of Vprint_number_table mean whether each object appears | |
1106 | more than once in OBJ: Qnil at the first time, and Qt after that . */ | |
1107 | static void | |
1108 | print_preprocess (obj) | |
1109 | Lisp_Object obj; | |
1110 | { | |
1111 | int i, size; | |
1112 | ||
1113 | loop: | |
1114 | if (STRINGP (obj) || CONSP (obj) || VECTORP (obj) | |
1115 | || COMPILEDP (obj) || CHAR_TABLE_P (obj) | |
1116 | || (! NILP (Vprint_gensym) | |
1117 | && SYMBOLP (obj) && NILP (XSYMBOL (obj)->obarray))) | |
1118 | { | |
1119 | for (i = 0; i < print_number_index; i++) | |
1120 | if (PRINT_NUMBER_OBJECT (Vprint_number_table, i) == obj) | |
ec838c39 | 1121 | { |
0f25ecc6 RS |
1122 | /* OBJ appears more than once. Let's remember that. */ |
1123 | PRINT_NUMBER_STATUS (Vprint_number_table, i) = Qt; | |
ec838c39 RS |
1124 | return; |
1125 | } | |
0f25ecc6 RS |
1126 | |
1127 | /* OBJ is not yet recorded. Let's add to the table. */ | |
1128 | if (print_number_index == 0) | |
1129 | { | |
1130 | /* Initialize the table. */ | |
1131 | Vprint_number_table = Fmake_vector (make_number (40), Qnil); | |
1132 | } | |
1133 | else if (XVECTOR (Vprint_number_table)->size == print_number_index * 2) | |
1134 | { | |
1135 | /* Reallocate the table. */ | |
1136 | int i = print_number_index * 4; | |
1137 | Lisp_Object old_table = Vprint_number_table; | |
1138 | Vprint_number_table = Fmake_vector (make_number (i), Qnil); | |
1139 | for (i = 0; i < print_number_index; i++) | |
1140 | { | |
1141 | PRINT_NUMBER_OBJECT (Vprint_number_table, i) | |
1142 | = PRINT_NUMBER_OBJECT (old_table, i); | |
1143 | PRINT_NUMBER_STATUS (Vprint_number_table, i) | |
1144 | = PRINT_NUMBER_STATUS (old_table, i); | |
1145 | } | |
1146 | } | |
1147 | PRINT_NUMBER_OBJECT (Vprint_number_table, print_number_index) = obj; | |
1148 | print_number_index++; | |
1149 | ||
1150 | switch (XGCTYPE (obj)) | |
1151 | { | |
1152 | case Lisp_String: | |
1153 | #ifdef USE_TEXT_PROPERTIES | |
1154 | /* A string may have text properties, which can be circular. */ | |
1155 | traverse_intervals (XSTRING (obj)->intervals, 0, 0, | |
1156 | print_preprocess_string, Qnil); | |
1157 | #endif /* USE_TEXT_PROPERTIES */ | |
1158 | break; | |
1159 | ||
1160 | case Lisp_Cons: | |
1161 | print_preprocess (XCAR (obj)); | |
1162 | obj = XCDR (obj); | |
1163 | goto loop; | |
1164 | ||
1165 | case Lisp_Vectorlike: | |
1166 | size = XVECTOR (obj)->size & PSEUDOVECTOR_SIZE_MASK; | |
1167 | for (i = 0; i < size; i++) | |
1168 | print_preprocess (XVECTOR (obj)->contents[i]); | |
1169 | } | |
1170 | } | |
1171 | } | |
1172 | ||
1173 | #ifdef USE_TEXT_PROPERTIES | |
1174 | static void | |
1175 | print_preprocess_string (interval, arg) | |
1176 | INTERVAL interval; | |
1177 | Lisp_Object arg; | |
1178 | { | |
1179 | print_preprocess (interval->plist); | |
1180 | } | |
1181 | #endif /* USE_TEXT_PROPERTIES */ | |
1182 | ||
1183 | static void | |
1184 | print_object (obj, printcharfun, escapeflag) | |
1185 | Lisp_Object obj; | |
1186 | register Lisp_Object printcharfun; | |
1187 | int escapeflag; | |
1188 | { | |
1189 | char buf[30]; | |
1190 | ||
1191 | QUIT; | |
1192 | ||
1193 | /* Detect circularities and truncate them. */ | |
1194 | if (STRINGP (obj) || CONSP (obj) || VECTORP (obj) | |
1195 | || COMPILEDP (obj) || CHAR_TABLE_P (obj) | |
1196 | || (! NILP (Vprint_gensym) | |
1197 | && SYMBOLP (obj) && NILP (XSYMBOL (obj)->obarray))) | |
1198 | { | |
1199 | if (NILP (Vprint_circle) && NILP (Vprint_gensym)) | |
1200 | { | |
1201 | /* Simple but incomplete way. */ | |
1202 | int i; | |
1203 | for (i = 0; i < print_depth; i++) | |
1204 | if (EQ (obj, being_printed[i])) | |
1205 | { | |
1206 | sprintf (buf, "#%d", i); | |
1207 | strout (buf, -1, -1, printcharfun, 0); | |
1208 | return; | |
1209 | } | |
1210 | being_printed[print_depth] = obj; | |
1211 | } | |
1212 | else | |
1213 | { | |
1214 | /* With the print-circle feature. */ | |
1215 | int i; | |
1216 | for (i = 0; i < print_number_index; i++) | |
1217 | if (PRINT_NUMBER_OBJECT (Vprint_number_table, i) == obj) | |
1218 | { | |
1219 | if (NILP (PRINT_NUMBER_STATUS (Vprint_number_table, i))) | |
1220 | { | |
1221 | /* Add a prefix #n= if OBJ has not yet been printed; | |
1222 | that is, its status field is nil. */ | |
1223 | sprintf (buf, "#%d=", i + 1); | |
1224 | strout (buf, -1, -1, printcharfun, 0); | |
1225 | /* OBJ is going to be printed. Set the status to t. */ | |
1226 | PRINT_NUMBER_STATUS (Vprint_number_table, i) = Qt; | |
1227 | break; | |
1228 | } | |
1229 | else | |
1230 | { | |
1231 | /* Just print #n# if OBJ has already been printed. */ | |
1232 | sprintf (buf, "#%d#", i + 1); | |
1233 | strout (buf, -1, -1, printcharfun, 0); | |
1234 | return; | |
1235 | } | |
1236 | } | |
1237 | } | |
ec838c39 | 1238 | } |
ec838c39 | 1239 | |
38010d50 JB |
1240 | print_depth++; |
1241 | ||
ec838c39 | 1242 | if (print_depth > PRINT_CIRCLE) |
38010d50 JB |
1243 | error ("Apparently circular structure being printed"); |
1244 | #ifdef MAX_PRINT_CHARS | |
1245 | if (max_print && print_chars > max_print) | |
1246 | { | |
1247 | PRINTCHAR ('\n'); | |
1248 | print_chars = 0; | |
1249 | } | |
1250 | #endif /* MAX_PRINT_CHARS */ | |
1251 | ||
ca0569ad | 1252 | switch (XGCTYPE (obj)) |
38010d50 | 1253 | { |
ca0569ad | 1254 | case Lisp_Int: |
b8180922 RS |
1255 | if (sizeof (int) == sizeof (EMACS_INT)) |
1256 | sprintf (buf, "%d", XINT (obj)); | |
1257 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
1258 | sprintf (buf, "%ld", XINT (obj)); | |
1259 | else | |
1260 | abort (); | |
dc2a0b79 | 1261 | strout (buf, -1, -1, printcharfun, 0); |
ca0569ad RS |
1262 | break; |
1263 | ||
e0f93814 | 1264 | #ifdef LISP_FLOAT_TYPE |
ca0569ad RS |
1265 | case Lisp_Float: |
1266 | { | |
1267 | char pigbuf[350]; /* see comments in float_to_string */ | |
38010d50 | 1268 | |
ca0569ad | 1269 | float_to_string (pigbuf, XFLOAT(obj)->data); |
dc2a0b79 | 1270 | strout (pigbuf, -1, -1, printcharfun, 0); |
ca0569ad RS |
1271 | } |
1272 | break; | |
e0f93814 | 1273 | #endif |
ca0569ad RS |
1274 | |
1275 | case Lisp_String: | |
38010d50 JB |
1276 | if (!escapeflag) |
1277 | print_string (obj, printcharfun); | |
1278 | else | |
1279 | { | |
dc2a0b79 | 1280 | register int i, i_byte; |
38010d50 | 1281 | register unsigned char c; |
38010d50 | 1282 | struct gcpro gcpro1; |
872a36d2 | 1283 | unsigned char *str; |
dc2a0b79 | 1284 | int size_byte; |
453fa987 RS |
1285 | /* 1 means we must ensure that the next character we output |
1286 | cannot be taken as part of a hex character escape. */ | |
1287 | int need_nonhex = 0; | |
38010d50 | 1288 | |
7651e1f5 RS |
1289 | GCPRO1 (obj); |
1290 | ||
1291 | #ifdef USE_TEXT_PROPERTIES | |
1292 | if (!NULL_INTERVAL_P (XSTRING (obj)->intervals)) | |
1293 | { | |
1294 | PRINTCHAR ('#'); | |
1295 | PRINTCHAR ('('); | |
1296 | } | |
1297 | #endif | |
38010d50 JB |
1298 | |
1299 | PRINTCHAR ('\"'); | |
872a36d2 | 1300 | str = XSTRING (obj)->data; |
fc932ac6 | 1301 | size_byte = STRING_BYTES (XSTRING (obj)); |
dc2a0b79 RS |
1302 | |
1303 | for (i = 0, i_byte = 0; i_byte < size_byte;) | |
38010d50 | 1304 | { |
6ddd6eee RS |
1305 | /* Here, we must convert each multi-byte form to the |
1306 | corresponding character code before handing it to PRINTCHAR. */ | |
1307 | int len; | |
dc2a0b79 RS |
1308 | int c; |
1309 | ||
1310 | if (STRING_MULTIBYTE (obj)) | |
872a36d2 | 1311 | { |
765fe1d0 KH |
1312 | c = STRING_CHAR_AND_LENGTH (str + i_byte, |
1313 | size_byte - i_byte, len); | |
da1ad4e7 KH |
1314 | if (CHAR_VALID_P (c, 0)) |
1315 | i_byte += len; | |
1316 | else | |
1317 | c = str[i_byte++]; | |
872a36d2 | 1318 | } |
dc2a0b79 | 1319 | else |
872a36d2 | 1320 | c = str[i_byte++]; |
dc2a0b79 | 1321 | |
38010d50 | 1322 | QUIT; |
6ddd6eee | 1323 | |
38010d50 JB |
1324 | if (c == '\n' && print_escape_newlines) |
1325 | { | |
1326 | PRINTCHAR ('\\'); | |
1327 | PRINTCHAR ('n'); | |
1328 | } | |
c6f7982f RM |
1329 | else if (c == '\f' && print_escape_newlines) |
1330 | { | |
1331 | PRINTCHAR ('\\'); | |
1332 | PRINTCHAR ('f'); | |
1333 | } | |
835d0be6 | 1334 | else if (! SINGLE_BYTE_CHAR_P (c) && print_escape_multibyte) |
dc2a0b79 RS |
1335 | { |
1336 | /* When multibyte is disabled, | |
1337 | print multibyte string chars using hex escapes. */ | |
1338 | unsigned char outbuf[50]; | |
1339 | sprintf (outbuf, "\\x%x", c); | |
1340 | strout (outbuf, -1, -1, printcharfun, 0); | |
453fa987 | 1341 | need_nonhex = 1; |
dc2a0b79 | 1342 | } |
835d0be6 RS |
1343 | else if (SINGLE_BYTE_CHAR_P (c) && ! ASCII_BYTE_P (c) |
1344 | && print_escape_nonascii) | |
974a6ff5 | 1345 | { |
835d0be6 RS |
1346 | /* When printing in a multibyte buffer |
1347 | or when explicitly requested, | |
974a6ff5 KH |
1348 | print single-byte non-ASCII string chars |
1349 | using octal escapes. */ | |
1350 | unsigned char outbuf[5]; | |
1351 | sprintf (outbuf, "\\%03o", c); | |
1352 | strout (outbuf, -1, -1, printcharfun, 0); | |
1353 | } | |
38010d50 JB |
1354 | else |
1355 | { | |
453fa987 RS |
1356 | /* If we just had a hex escape, and this character |
1357 | could be taken as part of it, | |
1358 | output `\ ' to prevent that. */ | |
1b62edd6 KH |
1359 | if (need_nonhex) |
1360 | { | |
1361 | need_nonhex = 0; | |
1362 | if ((c >= 'a' && c <= 'f') | |
453fa987 | 1363 | || (c >= 'A' && c <= 'F') |
1b62edd6 KH |
1364 | || (c >= '0' && c <= '9')) |
1365 | strout ("\\ ", -1, -1, printcharfun, 0); | |
1366 | } | |
453fa987 | 1367 | |
38010d50 JB |
1368 | if (c == '\"' || c == '\\') |
1369 | PRINTCHAR ('\\'); | |
1370 | PRINTCHAR (c); | |
1371 | } | |
1372 | } | |
1373 | PRINTCHAR ('\"'); | |
7651e1f5 RS |
1374 | |
1375 | #ifdef USE_TEXT_PROPERTIES | |
1376 | if (!NULL_INTERVAL_P (XSTRING (obj)->intervals)) | |
1377 | { | |
7651e1f5 RS |
1378 | traverse_intervals (XSTRING (obj)->intervals, |
1379 | 0, 0, print_interval, printcharfun); | |
1380 | PRINTCHAR (')'); | |
1381 | } | |
1382 | #endif | |
1383 | ||
38010d50 JB |
1384 | UNGCPRO; |
1385 | } | |
ca0569ad | 1386 | break; |
38010d50 | 1387 | |
ca0569ad RS |
1388 | case Lisp_Symbol: |
1389 | { | |
1390 | register int confusing; | |
1391 | register unsigned char *p = XSYMBOL (obj)->name->data; | |
fc932ac6 | 1392 | register unsigned char *end = p + STRING_BYTES (XSYMBOL (obj)->name); |
2190a05e | 1393 | register int c; |
dc2a0b79 RS |
1394 | int i, i_byte, size_byte; |
1395 | Lisp_Object name; | |
1396 | ||
1397 | XSETSTRING (name, XSYMBOL (obj)->name); | |
ca0569ad RS |
1398 | |
1399 | if (p != end && (*p == '-' || *p == '+')) p++; | |
1400 | if (p == end) | |
1401 | confusing = 0; | |
d27497e3 RS |
1402 | /* If symbol name begins with a digit, and ends with a digit, |
1403 | and contains nothing but digits and `e', it could be treated | |
1404 | as a number. So set CONFUSING. | |
1405 | ||
1406 | Symbols that contain periods could also be taken as numbers, | |
1407 | but periods are always escaped, so we don't have to worry | |
1408 | about them here. */ | |
1409 | else if (*p >= '0' && *p <= '9' | |
1410 | && end[-1] >= '0' && end[-1] <= '9') | |
ca0569ad | 1411 | { |
e837058b RS |
1412 | while (p != end && ((*p >= '0' && *p <= '9') |
1413 | /* Needed for \2e10. */ | |
1414 | || *p == 'e')) | |
ca0569ad RS |
1415 | p++; |
1416 | confusing = (end == p); | |
1417 | } | |
d27497e3 RS |
1418 | else |
1419 | confusing = 0; | |
ca0569ad | 1420 | |
e0f69431 | 1421 | if (! NILP (Vprint_gensym) && NILP (XSYMBOL (obj)->obarray)) |
081e0581 | 1422 | { |
081e0581 EN |
1423 | PRINTCHAR ('#'); |
1424 | PRINTCHAR (':'); | |
1425 | } | |
1426 | ||
fc932ac6 | 1427 | size_byte = STRING_BYTES (XSTRING (name)); |
dc2a0b79 RS |
1428 | |
1429 | for (i = 0, i_byte = 0; i_byte < size_byte;) | |
ca0569ad | 1430 | { |
6ddd6eee RS |
1431 | /* Here, we must convert each multi-byte form to the |
1432 | corresponding character code before handing it to PRINTCHAR. */ | |
dc2a0b79 RS |
1433 | |
1434 | if (STRING_MULTIBYTE (name)) | |
1435 | FETCH_STRING_CHAR_ADVANCE (c, name, i, i_byte); | |
1436 | else | |
1437 | c = XSTRING (name)->data[i_byte++]; | |
1438 | ||
ca0569ad | 1439 | QUIT; |
09eddb56 | 1440 | |
ca0569ad RS |
1441 | if (escapeflag) |
1442 | { | |
09eddb56 RS |
1443 | if (c == '\"' || c == '\\' || c == '\'' |
1444 | || c == ';' || c == '#' || c == '(' || c == ')' | |
1445 | || c == ',' || c =='.' || c == '`' | |
1446 | || c == '[' || c == ']' || c == '?' || c <= 040 | |
1447 | || confusing) | |
ca0569ad RS |
1448 | PRINTCHAR ('\\'), confusing = 0; |
1449 | } | |
1450 | PRINTCHAR (c); | |
1451 | } | |
1452 | } | |
1453 | break; | |
1454 | ||
1455 | case Lisp_Cons: | |
38010d50 | 1456 | /* If deeper than spec'd depth, print placeholder. */ |
d4ae1f7e | 1457 | if (INTEGERP (Vprint_level) |
38010d50 | 1458 | && print_depth > XINT (Vprint_level)) |
dc2a0b79 | 1459 | strout ("...", -1, -1, printcharfun, 0); |
2f100b5c EN |
1460 | else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj))) |
1461 | && (EQ (XCAR (obj), Qquote))) | |
1462 | { | |
1463 | PRINTCHAR ('\''); | |
0f25ecc6 | 1464 | print_object (XCAR (XCDR (obj)), printcharfun, escapeflag); |
2f100b5c EN |
1465 | } |
1466 | else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj))) | |
1467 | && (EQ (XCAR (obj), Qfunction))) | |
1468 | { | |
1469 | PRINTCHAR ('#'); | |
1470 | PRINTCHAR ('\''); | |
0f25ecc6 | 1471 | print_object (XCAR (XCDR (obj)), printcharfun, escapeflag); |
2f100b5c EN |
1472 | } |
1473 | else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj))) | |
1474 | && ((EQ (XCAR (obj), Qbackquote) | |
1475 | || EQ (XCAR (obj), Qcomma) | |
1476 | || EQ (XCAR (obj), Qcomma_at) | |
1477 | || EQ (XCAR (obj), Qcomma_dot)))) | |
1478 | { | |
0f25ecc6 RS |
1479 | print_object (XCAR (obj), printcharfun, 0); |
1480 | print_object (XCAR (XCDR (obj)), printcharfun, escapeflag); | |
2f100b5c | 1481 | } |
e0f93814 | 1482 | else |
38010d50 | 1483 | { |
e0f93814 | 1484 | PRINTCHAR ('('); |
38010d50 | 1485 | { |
e0f93814 | 1486 | register int i = 0; |
f4fe72d5 | 1487 | register int print_length = 0; |
1eab22b5 | 1488 | Lisp_Object halftail = obj; |
e0f93814 KH |
1489 | |
1490 | if (INTEGERP (Vprint_length)) | |
f4fe72d5 | 1491 | print_length = XINT (Vprint_length); |
e0f93814 | 1492 | while (CONSP (obj)) |
38010d50 | 1493 | { |
1eab22b5 | 1494 | /* Detect circular list. */ |
0f25ecc6 | 1495 | if (NILP (Vprint_circle)) |
1eab22b5 | 1496 | { |
0f25ecc6 RS |
1497 | /* Simple but imcomplete way. */ |
1498 | if (i != 0 && EQ (obj, halftail)) | |
1499 | { | |
1500 | sprintf (buf, " . #%d", i / 2); | |
1501 | strout (buf, -1, -1, printcharfun, 0); | |
1502 | goto end_of_list; | |
1503 | } | |
1504 | } | |
1505 | else | |
1506 | { | |
1507 | /* With the print-circle feature. */ | |
1508 | if (i != 0) | |
1509 | { | |
1510 | int i; | |
1511 | for (i = 0; i < print_number_index; i++) | |
1512 | if (PRINT_NUMBER_OBJECT (Vprint_number_table, i) == obj) | |
1513 | { | |
1514 | if (NILP (PRINT_NUMBER_STATUS (Vprint_number_table, i))) | |
1515 | { | |
1516 | strout (" . ", 3, 3, printcharfun, 0); | |
1517 | print_object (obj, printcharfun, escapeflag); | |
1518 | } | |
1519 | else | |
1520 | { | |
1521 | sprintf (buf, " . #%d#", i + 1); | |
1522 | strout (buf, -1, -1, printcharfun, 0); | |
1523 | } | |
1524 | goto end_of_list; | |
1525 | } | |
1526 | } | |
1eab22b5 | 1527 | } |
e0f93814 KH |
1528 | if (i++) |
1529 | PRINTCHAR (' '); | |
f4fe72d5 | 1530 | if (print_length && i > print_length) |
e0f93814 | 1531 | { |
dc2a0b79 | 1532 | strout ("...", 3, 3, printcharfun, 0); |
0f25ecc6 | 1533 | goto end_of_list; |
e0f93814 | 1534 | } |
0f25ecc6 | 1535 | print_object (XCAR (obj), printcharfun, escapeflag); |
2f100b5c | 1536 | obj = XCDR (obj); |
1eab22b5 RS |
1537 | if (!(i & 1)) |
1538 | halftail = XCDR (halftail); | |
38010d50 | 1539 | } |
38010d50 | 1540 | } |
2f100b5c | 1541 | if (!NILP (obj)) |
e0f93814 | 1542 | { |
dc2a0b79 | 1543 | strout (" . ", 3, 3, printcharfun, 0); |
0f25ecc6 | 1544 | print_object (obj, printcharfun, escapeflag); |
e0f93814 | 1545 | } |
0f25ecc6 | 1546 | end_of_list: |
e0f93814 | 1547 | PRINTCHAR (')'); |
38010d50 | 1548 | } |
ca0569ad RS |
1549 | break; |
1550 | ||
1551 | case Lisp_Vectorlike: | |
1552 | if (PROCESSP (obj)) | |
1553 | { | |
1554 | if (escapeflag) | |
1555 | { | |
dc2a0b79 | 1556 | strout ("#<process ", -1, -1, printcharfun, 0); |
ca0569ad RS |
1557 | print_string (XPROCESS (obj)->name, printcharfun); |
1558 | PRINTCHAR ('>'); | |
1559 | } | |
1560 | else | |
1561 | print_string (XPROCESS (obj)->name, printcharfun); | |
1562 | } | |
ed2c35ef RS |
1563 | else if (BOOL_VECTOR_P (obj)) |
1564 | { | |
1565 | register int i; | |
1566 | register unsigned char c; | |
1567 | struct gcpro gcpro1; | |
ed2c35ef | 1568 | int size_in_chars |
1bad7c59 | 1569 | = (XBOOL_VECTOR (obj)->size + BITS_PER_CHAR - 1) / BITS_PER_CHAR; |
ed2c35ef RS |
1570 | |
1571 | GCPRO1 (obj); | |
1572 | ||
1573 | PRINTCHAR ('#'); | |
1574 | PRINTCHAR ('&'); | |
1575 | sprintf (buf, "%d", XBOOL_VECTOR (obj)->size); | |
dc2a0b79 | 1576 | strout (buf, -1, -1, printcharfun, 0); |
ed2c35ef | 1577 | PRINTCHAR ('\"'); |
a40384bc RS |
1578 | |
1579 | /* Don't print more characters than the specified maximum. */ | |
1580 | if (INTEGERP (Vprint_length) | |
1581 | && XINT (Vprint_length) < size_in_chars) | |
1582 | size_in_chars = XINT (Vprint_length); | |
1583 | ||
ed2c35ef RS |
1584 | for (i = 0; i < size_in_chars; i++) |
1585 | { | |
1586 | QUIT; | |
1587 | c = XBOOL_VECTOR (obj)->data[i]; | |
1588 | if (c == '\n' && print_escape_newlines) | |
1589 | { | |
1590 | PRINTCHAR ('\\'); | |
1591 | PRINTCHAR ('n'); | |
1592 | } | |
1593 | else if (c == '\f' && print_escape_newlines) | |
1594 | { | |
1595 | PRINTCHAR ('\\'); | |
1596 | PRINTCHAR ('f'); | |
1597 | } | |
1598 | else | |
1599 | { | |
1600 | if (c == '\"' || c == '\\') | |
1601 | PRINTCHAR ('\\'); | |
1602 | PRINTCHAR (c); | |
1603 | } | |
1604 | } | |
1605 | PRINTCHAR ('\"'); | |
1606 | ||
1607 | UNGCPRO; | |
1608 | } | |
ca0569ad RS |
1609 | else if (SUBRP (obj)) |
1610 | { | |
dc2a0b79 RS |
1611 | strout ("#<subr ", -1, -1, printcharfun, 0); |
1612 | strout (XSUBR (obj)->symbol_name, -1, -1, printcharfun, 0); | |
ca0569ad RS |
1613 | PRINTCHAR ('>'); |
1614 | } | |
ca0569ad RS |
1615 | else if (WINDOWP (obj)) |
1616 | { | |
dc2a0b79 | 1617 | strout ("#<window ", -1, -1, printcharfun, 0); |
ca0569ad | 1618 | sprintf (buf, "%d", XFASTINT (XWINDOW (obj)->sequence_number)); |
dc2a0b79 | 1619 | strout (buf, -1, -1, printcharfun, 0); |
ca0569ad RS |
1620 | if (!NILP (XWINDOW (obj)->buffer)) |
1621 | { | |
dc2a0b79 | 1622 | strout (" on ", -1, -1, printcharfun, 0); |
ca0569ad RS |
1623 | print_string (XBUFFER (XWINDOW (obj)->buffer)->name, printcharfun); |
1624 | } | |
1625 | PRINTCHAR ('>'); | |
1626 | } | |
7eb03302 GM |
1627 | else if (HASH_TABLE_P (obj)) |
1628 | { | |
1629 | struct Lisp_Hash_Table *h = XHASH_TABLE (obj); | |
1630 | strout ("#<hash-table", -1, -1, printcharfun, 0); | |
1631 | if (SYMBOLP (h->test)) | |
1632 | { | |
1633 | PRINTCHAR (' '); | |
1634 | PRINTCHAR ('\''); | |
1635 | strout (XSYMBOL (h->test)->name->data, -1, -1, printcharfun, 0); | |
1636 | PRINTCHAR (' '); | |
1637 | strout (XSYMBOL (h->weak)->name->data, -1, -1, printcharfun, 0); | |
1638 | PRINTCHAR (' '); | |
1639 | sprintf (buf, "%d/%d", XFASTINT (h->count), | |
1640 | XVECTOR (h->next)->size); | |
1641 | strout (buf, -1, -1, printcharfun, 0); | |
1642 | } | |
1643 | sprintf (buf, " 0x%lx", (unsigned long) h); | |
1644 | strout (buf, -1, -1, printcharfun, 0); | |
1645 | PRINTCHAR ('>'); | |
1646 | } | |
908b0ae5 RS |
1647 | else if (BUFFERP (obj)) |
1648 | { | |
1649 | if (NILP (XBUFFER (obj)->name)) | |
dc2a0b79 | 1650 | strout ("#<killed buffer>", -1, -1, printcharfun, 0); |
908b0ae5 RS |
1651 | else if (escapeflag) |
1652 | { | |
dc2a0b79 | 1653 | strout ("#<buffer ", -1, -1, printcharfun, 0); |
908b0ae5 RS |
1654 | print_string (XBUFFER (obj)->name, printcharfun); |
1655 | PRINTCHAR ('>'); | |
1656 | } | |
1657 | else | |
1658 | print_string (XBUFFER (obj)->name, printcharfun); | |
1659 | } | |
ca0569ad RS |
1660 | else if (WINDOW_CONFIGURATIONP (obj)) |
1661 | { | |
dc2a0b79 | 1662 | strout ("#<window-configuration>", -1, -1, printcharfun, 0); |
ca0569ad | 1663 | } |
ca0569ad RS |
1664 | else if (FRAMEP (obj)) |
1665 | { | |
1666 | strout ((FRAME_LIVE_P (XFRAME (obj)) | |
1667 | ? "#<frame " : "#<dead frame "), | |
dc2a0b79 | 1668 | -1, -1, printcharfun, 0); |
ca0569ad | 1669 | print_string (XFRAME (obj)->name, printcharfun); |
dc2a0b79 RS |
1670 | sprintf (buf, " 0x%lx\\ ", (unsigned long) (XFRAME (obj))); |
1671 | strout (buf, -1, -1, printcharfun, 0); | |
ca0569ad RS |
1672 | PRINTCHAR ('>'); |
1673 | } | |
ca0569ad RS |
1674 | else |
1675 | { | |
1676 | int size = XVECTOR (obj)->size; | |
1677 | if (COMPILEDP (obj)) | |
1678 | { | |
1679 | PRINTCHAR ('#'); | |
1680 | size &= PSEUDOVECTOR_SIZE_MASK; | |
1681 | } | |
ed2c35ef RS |
1682 | if (CHAR_TABLE_P (obj)) |
1683 | { | |
1684 | /* We print a char-table as if it were a vector, | |
1685 | lumping the parent and default slots in with the | |
1686 | character slots. But we add #^ as a prefix. */ | |
1687 | PRINTCHAR ('#'); | |
1688 | PRINTCHAR ('^'); | |
3701b5de KH |
1689 | if (SUB_CHAR_TABLE_P (obj)) |
1690 | PRINTCHAR ('^'); | |
ed2c35ef RS |
1691 | size &= PSEUDOVECTOR_SIZE_MASK; |
1692 | } | |
00d76abc KH |
1693 | if (size & PSEUDOVECTOR_FLAG) |
1694 | goto badtype; | |
ca0569ad RS |
1695 | |
1696 | PRINTCHAR ('['); | |
38010d50 | 1697 | { |
ca0569ad RS |
1698 | register int i; |
1699 | register Lisp_Object tem; | |
a40384bc RS |
1700 | |
1701 | /* Don't print more elements than the specified maximum. */ | |
1702 | if (INTEGERP (Vprint_length) | |
1703 | && XINT (Vprint_length) < size) | |
1704 | size = XINT (Vprint_length); | |
1705 | ||
ca0569ad RS |
1706 | for (i = 0; i < size; i++) |
1707 | { | |
1708 | if (i) PRINTCHAR (' '); | |
1709 | tem = XVECTOR (obj)->contents[i]; | |
0f25ecc6 | 1710 | print_object (tem, printcharfun, escapeflag); |
ca0569ad | 1711 | } |
38010d50 | 1712 | } |
ca0569ad RS |
1713 | PRINTCHAR (']'); |
1714 | } | |
1715 | break; | |
1716 | ||
ca0569ad | 1717 | case Lisp_Misc: |
5db20f08 | 1718 | switch (XMISCTYPE (obj)) |
38010d50 | 1719 | { |
00d76abc | 1720 | case Lisp_Misc_Marker: |
dc2a0b79 | 1721 | strout ("#<marker ", -1, -1, printcharfun, 0); |
087e3c46 KH |
1722 | /* Do you think this is necessary? */ |
1723 | if (XMARKER (obj)->insertion_type != 0) | |
dc2a0b79 | 1724 | strout ("(before-insertion) ", -1, -1, printcharfun, 0); |
ca0569ad | 1725 | if (!(XMARKER (obj)->buffer)) |
dc2a0b79 | 1726 | strout ("in no buffer", -1, -1, printcharfun, 0); |
ca0569ad RS |
1727 | else |
1728 | { | |
1729 | sprintf (buf, "at %d", marker_position (obj)); | |
dc2a0b79 RS |
1730 | strout (buf, -1, -1, printcharfun, 0); |
1731 | strout (" in ", -1, -1, printcharfun, 0); | |
ca0569ad RS |
1732 | print_string (XMARKER (obj)->buffer->name, printcharfun); |
1733 | } | |
38010d50 | 1734 | PRINTCHAR ('>'); |
908b0ae5 | 1735 | break; |
00d76abc KH |
1736 | |
1737 | case Lisp_Misc_Overlay: | |
dc2a0b79 | 1738 | strout ("#<overlay ", -1, -1, printcharfun, 0); |
ca0569ad | 1739 | if (!(XMARKER (OVERLAY_START (obj))->buffer)) |
dc2a0b79 | 1740 | strout ("in no buffer", -1, -1, printcharfun, 0); |
ca0569ad RS |
1741 | else |
1742 | { | |
1743 | sprintf (buf, "from %d to %d in ", | |
1744 | marker_position (OVERLAY_START (obj)), | |
1745 | marker_position (OVERLAY_END (obj))); | |
dc2a0b79 | 1746 | strout (buf, -1, -1, printcharfun, 0); |
ca0569ad RS |
1747 | print_string (XMARKER (OVERLAY_START (obj))->buffer->name, |
1748 | printcharfun); | |
1749 | } | |
1750 | PRINTCHAR ('>'); | |
908b0ae5 | 1751 | break; |
00d76abc KH |
1752 | |
1753 | /* Remaining cases shouldn't happen in normal usage, but let's print | |
1754 | them anyway for the benefit of the debugger. */ | |
1755 | case Lisp_Misc_Free: | |
dc2a0b79 | 1756 | strout ("#<misc free cell>", -1, -1, printcharfun, 0); |
00d76abc KH |
1757 | break; |
1758 | ||
1759 | case Lisp_Misc_Intfwd: | |
1760 | sprintf (buf, "#<intfwd to %d>", *XINTFWD (obj)->intvar); | |
dc2a0b79 | 1761 | strout (buf, -1, -1, printcharfun, 0); |
00d76abc KH |
1762 | break; |
1763 | ||
1764 | case Lisp_Misc_Boolfwd: | |
1765 | sprintf (buf, "#<boolfwd to %s>", | |
1766 | (*XBOOLFWD (obj)->boolvar ? "t" : "nil")); | |
dc2a0b79 | 1767 | strout (buf, -1, -1, printcharfun, 0); |
00d76abc KH |
1768 | break; |
1769 | ||
1770 | case Lisp_Misc_Objfwd: | |
dc2a0b79 | 1771 | strout ("#<objfwd to ", -1, -1, printcharfun, 0); |
0f25ecc6 | 1772 | print_object (*XOBJFWD (obj)->objvar, printcharfun, escapeflag); |
00d76abc KH |
1773 | PRINTCHAR ('>'); |
1774 | break; | |
1775 | ||
1776 | case Lisp_Misc_Buffer_Objfwd: | |
dc2a0b79 | 1777 | strout ("#<buffer_objfwd to ", -1, -1, printcharfun, 0); |
0f25ecc6 RS |
1778 | print_object (*(Lisp_Object *)((char *)current_buffer |
1779 | + XBUFFER_OBJFWD (obj)->offset), | |
3ac613c1 KH |
1780 | printcharfun, escapeflag); |
1781 | PRINTCHAR ('>'); | |
1782 | break; | |
1783 | ||
fb917148 | 1784 | case Lisp_Misc_Kboard_Objfwd: |
dc2a0b79 | 1785 | strout ("#<kboard_objfwd to ", -1, -1, printcharfun, 0); |
0f25ecc6 RS |
1786 | print_object (*(Lisp_Object *)((char *) current_kboard |
1787 | + XKBOARD_OBJFWD (obj)->offset), | |
7ae137a9 | 1788 | printcharfun, escapeflag); |
00d76abc KH |
1789 | PRINTCHAR ('>'); |
1790 | break; | |
1791 | ||
1792 | case Lisp_Misc_Buffer_Local_Value: | |
dc2a0b79 | 1793 | strout ("#<buffer_local_value ", -1, -1, printcharfun, 0); |
00d76abc KH |
1794 | goto do_buffer_local; |
1795 | case Lisp_Misc_Some_Buffer_Local_Value: | |
dc2a0b79 | 1796 | strout ("#<some_buffer_local_value ", -1, -1, printcharfun, 0); |
00d76abc | 1797 | do_buffer_local: |
dc2a0b79 | 1798 | strout ("[realvalue] ", -1, -1, printcharfun, 0); |
0f25ecc6 RS |
1799 | print_object (XBUFFER_LOCAL_VALUE (obj)->realvalue, |
1800 | printcharfun, escapeflag); | |
03153771 RS |
1801 | if (XBUFFER_LOCAL_VALUE (obj)->found_for_buffer) |
1802 | strout ("[local in buffer] ", -1, -1, printcharfun, 0); | |
1803 | else | |
1804 | strout ("[buffer] ", -1, -1, printcharfun, 0); | |
0f25ecc6 RS |
1805 | print_object (XBUFFER_LOCAL_VALUE (obj)->buffer, |
1806 | printcharfun, escapeflag); | |
03153771 RS |
1807 | if (XBUFFER_LOCAL_VALUE (obj)->check_frame) |
1808 | { | |
1809 | if (XBUFFER_LOCAL_VALUE (obj)->found_for_frame) | |
1810 | strout ("[local in frame] ", -1, -1, printcharfun, 0); | |
1811 | else | |
1812 | strout ("[frame] ", -1, -1, printcharfun, 0); | |
0f25ecc6 RS |
1813 | print_object (XBUFFER_LOCAL_VALUE (obj)->frame, |
1814 | printcharfun, escapeflag); | |
03153771 | 1815 | } |
dc2a0b79 | 1816 | strout ("[alist-elt] ", -1, -1, printcharfun, 0); |
0f25ecc6 RS |
1817 | print_object (XCONS (XBUFFER_LOCAL_VALUE (obj)->cdr)->car, |
1818 | printcharfun, escapeflag); | |
dc2a0b79 | 1819 | strout ("[default-value] ", -1, -1, printcharfun, 0); |
0f25ecc6 RS |
1820 | print_object (XCONS (XBUFFER_LOCAL_VALUE (obj)->cdr)->cdr, |
1821 | printcharfun, escapeflag); | |
00d76abc KH |
1822 | PRINTCHAR ('>'); |
1823 | break; | |
1824 | ||
1825 | default: | |
1826 | goto badtype; | |
e0f93814 | 1827 | } |
00d76abc | 1828 | break; |
ca0569ad RS |
1829 | |
1830 | default: | |
00d76abc | 1831 | badtype: |
ca0569ad RS |
1832 | { |
1833 | /* We're in trouble if this happens! | |
1834 | Probably should just abort () */ | |
dc2a0b79 | 1835 | strout ("#<EMACS BUG: INVALID DATATYPE ", -1, -1, printcharfun, 0); |
00d76abc | 1836 | if (MISCP (obj)) |
5db20f08 | 1837 | sprintf (buf, "(MISC 0x%04x)", (int) XMISCTYPE (obj)); |
00d76abc KH |
1838 | else if (VECTORLIKEP (obj)) |
1839 | sprintf (buf, "(PVEC 0x%08x)", (int) XVECTOR (obj)->size); | |
1840 | else | |
1841 | sprintf (buf, "(0x%02x)", (int) XTYPE (obj)); | |
dc2a0b79 | 1842 | strout (buf, -1, -1, printcharfun, 0); |
ca0569ad | 1843 | strout (" Save your buffers immediately and please report this bug>", |
dc2a0b79 | 1844 | -1, -1, printcharfun, 0); |
ca0569ad | 1845 | } |
38010d50 JB |
1846 | } |
1847 | ||
1848 | print_depth--; | |
1849 | } | |
1850 | \f | |
7651e1f5 RS |
1851 | #ifdef USE_TEXT_PROPERTIES |
1852 | ||
1853 | /* Print a description of INTERVAL using PRINTCHARFUN. | |
1854 | This is part of printing a string that has text properties. */ | |
1855 | ||
1856 | void | |
1857 | print_interval (interval, printcharfun) | |
1858 | INTERVAL interval; | |
1859 | Lisp_Object printcharfun; | |
1860 | { | |
30503c0b | 1861 | PRINTCHAR (' '); |
0f25ecc6 | 1862 | print_object (make_number (interval->position), printcharfun, 1); |
7651e1f5 | 1863 | PRINTCHAR (' '); |
0f25ecc6 | 1864 | print_object (make_number (interval->position + LENGTH (interval)), |
7651e1f5 RS |
1865 | printcharfun, 1); |
1866 | PRINTCHAR (' '); | |
0f25ecc6 | 1867 | print_object (interval->plist, printcharfun, 1); |
7651e1f5 RS |
1868 | } |
1869 | ||
1870 | #endif /* USE_TEXT_PROPERTIES */ | |
1871 | \f | |
38010d50 JB |
1872 | void |
1873 | syms_of_print () | |
1874 | { | |
d9c21094 RS |
1875 | Qtemp_buffer_setup_hook = intern ("temp-buffer-setup-hook"); |
1876 | staticpro (&Qtemp_buffer_setup_hook); | |
1877 | ||
38010d50 JB |
1878 | DEFVAR_LISP ("standard-output", &Vstandard_output, |
1879 | "Output stream `print' uses by default for outputting a character.\n\ | |
1880 | This may be any function of one argument.\n\ | |
1881 | It may also be a buffer (output is inserted before point)\n\ | |
1882 | or a marker (output is inserted and the marker is advanced)\n\ | |
113620cc | 1883 | or the symbol t (output appears in the echo area)."); |
38010d50 JB |
1884 | Vstandard_output = Qt; |
1885 | Qstandard_output = intern ("standard-output"); | |
1886 | staticpro (&Qstandard_output); | |
1887 | ||
1888 | #ifdef LISP_FLOAT_TYPE | |
1889 | DEFVAR_LISP ("float-output-format", &Vfloat_output_format, | |
06ef7355 | 1890 | "The format descriptor string used to print floats.\n\ |
38010d50 JB |
1891 | This is a %-spec like those accepted by `printf' in C,\n\ |
1892 | but with some restrictions. It must start with the two characters `%.'.\n\ | |
1893 | After that comes an integer precision specification,\n\ | |
1894 | and then a letter which controls the format.\n\ | |
1895 | The letters allowed are `e', `f' and `g'.\n\ | |
1896 | Use `e' for exponential notation \"DIG.DIGITSeEXPT\"\n\ | |
1897 | Use `f' for decimal point notation \"DIGITS.DIGITS\".\n\ | |
1898 | Use `g' to choose the shorter of those two formats for the number at hand.\n\ | |
1899 | The precision in any of these cases is the number of digits following\n\ | |
1900 | the decimal point. With `f', a precision of 0 means to omit the\n\ | |
c7b14277 | 1901 | decimal point. 0 is not allowed with `e' or `g'.\n\n\ |
f356c3fb PE |
1902 | A value of nil means to use the shortest notation\n\ |
1903 | that represents the number without losing information."); | |
38010d50 JB |
1904 | Vfloat_output_format = Qnil; |
1905 | Qfloat_output_format = intern ("float-output-format"); | |
1906 | staticpro (&Qfloat_output_format); | |
1907 | #endif /* LISP_FLOAT_TYPE */ | |
1908 | ||
1909 | DEFVAR_LISP ("print-length", &Vprint_length, | |
aa734e17 | 1910 | "Maximum length of list to print before abbreviating.\n\ |
38010d50 JB |
1911 | A value of nil means no limit."); |
1912 | Vprint_length = Qnil; | |
1913 | ||
1914 | DEFVAR_LISP ("print-level", &Vprint_level, | |
aa734e17 | 1915 | "Maximum depth of list nesting to print before abbreviating.\n\ |
38010d50 JB |
1916 | A value of nil means no limit."); |
1917 | Vprint_level = Qnil; | |
1918 | ||
1919 | DEFVAR_BOOL ("print-escape-newlines", &print_escape_newlines, | |
a8920a17 | 1920 | "Non-nil means print newlines in strings as backslash-n.\n\ |
c6f7982f | 1921 | Also print formfeeds as backslash-f."); |
38010d50 JB |
1922 | print_escape_newlines = 0; |
1923 | ||
38940e93 | 1924 | DEFVAR_BOOL ("print-escape-nonascii", &print_escape_nonascii, |
835d0be6 RS |
1925 | "Non-nil means print unibyte non-ASCII chars in strings as \\OOO.\n\ |
1926 | \(OOO is the octal representation of the character code.)\n\ | |
96aab770 | 1927 | Only single-byte characters are affected, and only in `prin1'."); |
38940e93 RS |
1928 | print_escape_nonascii = 0; |
1929 | ||
835d0be6 RS |
1930 | DEFVAR_BOOL ("print-escape-multibyte", &print_escape_multibyte, |
1931 | "Non-nil means print multibyte characters in strings as \\xXXXX.\n\ | |
1932 | \(XXX is the hex representation of the character code.)\n\ | |
1933 | This affects only `prin1'."); | |
1934 | print_escape_multibyte = 0; | |
1935 | ||
2f100b5c EN |
1936 | DEFVAR_BOOL ("print-quoted", &print_quoted, |
1937 | "Non-nil means print quoted forms with reader syntax.\n\ | |
1938 | I.e., (quote foo) prints as 'foo, (function foo) as #'foo, and, backquoted\n\ | |
1939 | forms print in the new syntax."); | |
1940 | print_quoted = 0; | |
1941 | ||
e0f69431 | 1942 | DEFVAR_LISP ("print-gensym", &Vprint_gensym, |
081e0581 | 1943 | "Non-nil means print uninterned symbols so they will read as uninterned.\n\ |
265375e7 | 1944 | I.e., the value of (make-symbol \"foobar\") prints as #:foobar.\n\ |
0f25ecc6 RS |
1945 | When the uninterned symbol appears within a recursive data structure\n\ |
1946 | and the symbol appears more than once, in addition use the #N# and #N=\n\ | |
1947 | constructs as needed, so that multiple references to the same symbol are\n\ | |
1948 | shared once again when the text is read back."); | |
e0f69431 RS |
1949 | Vprint_gensym = Qnil; |
1950 | ||
0f25ecc6 RS |
1951 | DEFVAR_LISP ("print-circle", &Vprint_circle, |
1952 | "*Non-nil means print recursive structures using #N= and #N# syntax.\n\ | |
1953 | If nil, printing proceeds recursively and may lead to\n\ | |
1954 | `max-lisp-eval-depth' being exceeded or an error may occur:\n\ | |
1955 | \"Apparently circular structure being printed.\" Also see\n\ | |
1956 | `print-length' and `print-level'.\n\ | |
1957 | If non-nil, shared substructures anywhere in the structure are printed\n\ | |
1958 | with `#N=' before the first occurrence (in the order of the print\n\ | |
1959 | representation) and `#N#' in place of each subsequent occurrence,\n\ | |
1960 | where N is a positive decimal integer."); | |
1961 | Vprint_circle = Qnil; | |
1962 | ||
1963 | DEFVAR_LISP ("print-continuous-numbering", &Vprint_continuous_numbering, | |
1964 | "*Non-nil means keep numbering between several print functions.\n\ | |
1965 | See `print-gensym' nad `print-circle'. See also `print-number-table'."); | |
1966 | Vprint_continuous_numbering = Qnil; | |
1967 | ||
1968 | DEFVAR_LISP ("print-number-table", &Vprint_number_table, | |
1969 | "A vector keeping the information of the current printed object.\n\ | |
1970 | This variable shouldn't be modified in Lisp level, but should be binded\n\ | |
1971 | with nil using let at the same position with `print-continuous-numbering',\n\ | |
1972 | so that the value of this variable can be freed after printing."); | |
1973 | Vprint_number_table = Qnil; | |
081e0581 | 1974 | |
38010d50 JB |
1975 | /* prin1_to_string_buffer initialized in init_buffer_once in buffer.c */ |
1976 | staticpro (&Vprin1_to_string_buffer); | |
1977 | ||
1978 | defsubr (&Sprin1); | |
1979 | defsubr (&Sprin1_to_string); | |
113620cc | 1980 | defsubr (&Serror_message_string); |
38010d50 JB |
1981 | defsubr (&Sprinc); |
1982 | defsubr (&Sprint); | |
1983 | defsubr (&Sterpri); | |
1984 | defsubr (&Swrite_char); | |
1985 | defsubr (&Sexternal_debugging_output); | |
1986 | ||
1987 | Qexternal_debugging_output = intern ("external-debugging-output"); | |
1988 | staticpro (&Qexternal_debugging_output); | |
1989 | ||
2f100b5c EN |
1990 | Qprint_escape_newlines = intern ("print-escape-newlines"); |
1991 | staticpro (&Qprint_escape_newlines); | |
1992 | ||
835d0be6 RS |
1993 | Qprint_escape_multibyte = intern ("print-escape-multibyte"); |
1994 | staticpro (&Qprint_escape_multibyte); | |
1995 | ||
1996 | Qprint_escape_nonascii = intern ("print-escape-nonascii"); | |
1997 | staticpro (&Qprint_escape_nonascii); | |
1998 | ||
38010d50 | 1999 | defsubr (&Swith_output_to_temp_buffer); |
38010d50 | 2000 | } |