Commit | Line | Data |
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38010d50 | 1 | /* Lisp object printing and output streams. |
95df8112 GM |
2 | |
3 | Copyright (C) 1985-1986, 1988, 1993-1995, 1997-2011 | |
4 | Free Software Foundation, Inc. | |
38010d50 JB |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
9ec0b715 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
38010d50 | 9 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
38010d50 JB |
12 | |
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
38010d50 JB |
20 | |
21 | ||
18160b98 | 22 | #include <config.h> |
38010d50 | 23 | #include <stdio.h> |
d7306fe6 | 24 | #include <setjmp.h> |
38010d50 | 25 | #include "lisp.h" |
38010d50 | 26 | #include "buffer.h" |
8b4b4467 | 27 | #include "character.h" |
71ea13cb | 28 | #include "charset.h" |
2538fae4 | 29 | #include "keyboard.h" |
0137dbf7 | 30 | #include "frame.h" |
38010d50 JB |
31 | #include "window.h" |
32 | #include "process.h" | |
33 | #include "dispextern.h" | |
34 | #include "termchar.h" | |
7651e1f5 | 35 | #include "intervals.h" |
f9467be3 | 36 | #include "blockinput.h" |
f76c8b1e | 37 | #include "termhooks.h" /* For struct terminal. */ |
2a7b7982 | 38 | #include "font.h" |
7651e1f5 | 39 | |
29208e82 | 40 | Lisp_Object Qstandard_output; |
38010d50 | 41 | |
d9c21094 RS |
42 | Lisp_Object Qtemp_buffer_setup_hook; |
43 | ||
2f100b5c | 44 | /* These are used to print like we read. */ |
2f100b5c | 45 | |
29208e82 | 46 | Lisp_Object Qfloat_output_format; |
f356c3fb | 47 | |
f356c3fb PE |
48 | #include <math.h> |
49 | ||
50 | #if STDC_HEADERS | |
51 | #include <float.h> | |
f356c3fb | 52 | #endif |
fa2c4f56 | 53 | #include <ftoastr.h> |
f356c3fb PE |
54 | |
55 | /* Default to values appropriate for IEEE floating point. */ | |
f356c3fb PE |
56 | #ifndef DBL_DIG |
57 | #define DBL_DIG 15 | |
58 | #endif | |
f356c3fb | 59 | |
38010d50 JB |
60 | /* Avoid actual stack overflow in print. */ |
61 | int print_depth; | |
62 | ||
a22dec27 SM |
63 | /* Level of nesting inside outputting backquote in new style. */ |
64 | int new_backquote_output; | |
0330bb60 | 65 | |
ec838c39 RS |
66 | /* Detect most circularities to print finite output. */ |
67 | #define PRINT_CIRCLE 200 | |
68 | Lisp_Object being_printed[PRINT_CIRCLE]; | |
69 | ||
6fec5601 RS |
70 | /* When printing into a buffer, first we put the text in this |
71 | block, then insert it all at once. */ | |
72 | char *print_buffer; | |
73 | ||
74 | /* Size allocated in print_buffer. */ | |
db063399 | 75 | EMACS_INT print_buffer_size; |
dc2a0b79 | 76 | /* Chars stored in print_buffer. */ |
db063399 | 77 | EMACS_INT print_buffer_pos; |
dc2a0b79 | 78 | /* Bytes stored in print_buffer. */ |
db063399 | 79 | EMACS_INT print_buffer_pos_byte; |
6fec5601 | 80 | |
835d0be6 RS |
81 | Lisp_Object Qprint_escape_newlines; |
82 | Lisp_Object Qprint_escape_multibyte, Qprint_escape_nonascii; | |
83 | ||
a65b85b5 SM |
84 | /* Vprint_number_table is a table, that keeps objects that are going to |
85 | be printed, to allow use of #n= and #n# to express sharing. | |
86 | For any given object, the table can give the following values: | |
87 | t the object will be printed only once. | |
88 | -N the object will be printed several times and will take number N. | |
89 | N the object has been printed so we can refer to it as #N#. | |
90 | print_number_index holds the largest N already used. | |
91 | N has to be striclty larger than 0 since we need to distinguish -N. */ | |
0f25ecc6 | 92 | int print_number_index; |
971de7fb | 93 | void print_interval (INTERVAL interval, Lisp_Object printcharfun); |
38010d50 | 94 | |
945b0111 | 95 | /* GDB resets this to zero on W32 to disable OutputDebugString calls. */ |
42c8bc9b | 96 | int print_output_debug_flag EXTERNALLY_VISIBLE = 1; |
945b0111 | 97 | |
38010d50 | 98 | \f |
eb8c3be9 | 99 | /* Low level output routines for characters and strings */ |
38010d50 JB |
100 | |
101 | /* Lisp functions to do output using a stream | |
081e0581 EN |
102 | must have the stream in a variable called printcharfun |
103 | and must start with PRINTPREPARE, end with PRINTFINISH, | |
104 | and use PRINTDECLARE to declare common variables. | |
105 | Use PRINTCHAR to output one character, | |
177c0ea7 | 106 | or call strout to output a block of characters. */ |
0788646c GM |
107 | |
108 | #define PRINTDECLARE \ | |
109 | struct buffer *old = current_buffer; \ | |
db063399 LMI |
110 | EMACS_INT old_point = -1, start_point = -1; \ |
111 | EMACS_INT old_point_byte = -1, start_point_byte = -1; \ | |
aed13378 | 112 | int specpdl_count = SPECPDL_INDEX (); \ |
0788646c | 113 | int free_print_buffer = 0; \ |
4b4deea2 | 114 | int multibyte = !NILP (BVAR (current_buffer, enable_multibyte_characters)); \ |
081e0581 EN |
115 | Lisp_Object original |
116 | ||
0788646c GM |
117 | #define PRINTPREPARE \ |
118 | original = printcharfun; \ | |
119 | if (NILP (printcharfun)) printcharfun = Qt; \ | |
120 | if (BUFFERP (printcharfun)) \ | |
121 | { \ | |
122 | if (XBUFFER (printcharfun) != current_buffer) \ | |
123 | Fset_buffer (printcharfun); \ | |
124 | printcharfun = Qnil; \ | |
125 | } \ | |
126 | if (MARKERP (printcharfun)) \ | |
127 | { \ | |
1cf21850 | 128 | EMACS_INT marker_pos; \ |
cd3587c1 | 129 | if (! XMARKER (printcharfun)->buffer) \ |
0788646c | 130 | error ("Marker does not point anywhere"); \ |
1cf21850 LK |
131 | if (XMARKER (printcharfun)->buffer != current_buffer) \ |
132 | set_buffer_internal (XMARKER (printcharfun)->buffer); \ | |
133 | marker_pos = marker_position (printcharfun); \ | |
134 | if (marker_pos < BEGV || marker_pos > ZV) \ | |
135 | error ("Marker is outside the accessible part of the buffer"); \ | |
0788646c GM |
136 | old_point = PT; \ |
137 | old_point_byte = PT_BYTE; \ | |
1cf21850 | 138 | SET_PT_BOTH (marker_pos, \ |
0788646c GM |
139 | marker_byte_position (printcharfun)); \ |
140 | start_point = PT; \ | |
141 | start_point_byte = PT_BYTE; \ | |
142 | printcharfun = Qnil; \ | |
143 | } \ | |
144 | if (NILP (printcharfun)) \ | |
145 | { \ | |
146 | Lisp_Object string; \ | |
4b4deea2 | 147 | if (NILP (BVAR (current_buffer, enable_multibyte_characters)) \ |
0788646c GM |
148 | && ! print_escape_multibyte) \ |
149 | specbind (Qprint_escape_multibyte, Qt); \ | |
4b4deea2 | 150 | if (! NILP (BVAR (current_buffer, enable_multibyte_characters)) \ |
d39f07c2 RS |
151 | && ! print_escape_nonascii) \ |
152 | specbind (Qprint_escape_nonascii, Qt); \ | |
0788646c GM |
153 | if (print_buffer != 0) \ |
154 | { \ | |
155 | string = make_string_from_bytes (print_buffer, \ | |
156 | print_buffer_pos, \ | |
157 | print_buffer_pos_byte); \ | |
158 | record_unwind_protect (print_unwind, string); \ | |
159 | } \ | |
160 | else \ | |
161 | { \ | |
162 | print_buffer_size = 1000; \ | |
163 | print_buffer = (char *) xmalloc (print_buffer_size); \ | |
164 | free_print_buffer = 1; \ | |
165 | } \ | |
166 | print_buffer_pos = 0; \ | |
167 | print_buffer_pos_byte = 0; \ | |
168 | } \ | |
5494b50f | 169 | if (EQ (printcharfun, Qt) && ! noninteractive) \ |
0f25ecc6 | 170 | setup_echo_area_for_printing (multibyte); |
38010d50 | 171 | |
8a2ab0c6 RS |
172 | #define PRINTFINISH \ |
173 | if (NILP (printcharfun)) \ | |
174 | { \ | |
175 | if (print_buffer_pos != print_buffer_pos_byte \ | |
4b4deea2 | 176 | && NILP (BVAR (current_buffer, enable_multibyte_characters))) \ |
8a2ab0c6 RS |
177 | { \ |
178 | unsigned char *temp \ | |
179 | = (unsigned char *) alloca (print_buffer_pos + 1); \ | |
09125ef8 PE |
180 | copy_text ((unsigned char *) print_buffer, temp, \ |
181 | print_buffer_pos_byte, 1, 0); \ | |
b68864e5 | 182 | insert_1_both ((char *) temp, print_buffer_pos, \ |
8a2ab0c6 RS |
183 | print_buffer_pos, 0, 1, 0); \ |
184 | } \ | |
185 | else \ | |
186 | insert_1_both (print_buffer, print_buffer_pos, \ | |
187 | print_buffer_pos_byte, 0, 1, 0); \ | |
570fab6c | 188 | signal_after_change (PT - print_buffer_pos, 0, print_buffer_pos);\ |
8a2ab0c6 RS |
189 | } \ |
190 | if (free_print_buffer) \ | |
191 | { \ | |
192 | xfree (print_buffer); \ | |
193 | print_buffer = 0; \ | |
194 | } \ | |
195 | unbind_to (specpdl_count, Qnil); \ | |
196 | if (MARKERP (original)) \ | |
197 | set_marker_both (original, Qnil, PT, PT_BYTE); \ | |
198 | if (old_point >= 0) \ | |
199 | SET_PT_BOTH (old_point + (old_point >= start_point \ | |
200 | ? PT - start_point : 0), \ | |
6ddd6eee | 201 | old_point_byte + (old_point_byte >= start_point_byte \ |
cd3587c1 | 202 | ? PT_BYTE - start_point_byte : 0)); \ |
8a2ab0c6 | 203 | if (old != current_buffer) \ |
0f25ecc6 | 204 | set_buffer_internal (old); |
38010d50 JB |
205 | |
206 | #define PRINTCHAR(ch) printchar (ch, printcharfun) | |
207 | ||
08e8d297 RS |
208 | /* This is used to restore the saved contents of print_buffer |
209 | when there is a recursive call to print. */ | |
0788646c | 210 | |
08e8d297 | 211 | static Lisp_Object |
971de7fb | 212 | print_unwind (Lisp_Object saved_text) |
08e8d297 | 213 | { |
72af86bd | 214 | memcpy (print_buffer, SDATA (saved_text), SCHARS (saved_text)); |
ee5263af | 215 | return Qnil; |
08e8d297 RS |
216 | } |
217 | ||
0788646c GM |
218 | |
219 | /* Print character CH using method FUN. FUN nil means print to | |
220 | print_buffer. FUN t means print to echo area or stdout if | |
221 | non-interactive. If FUN is neither nil nor t, call FUN with CH as | |
222 | argument. */ | |
38010d50 JB |
223 | |
224 | static void | |
971de7fb | 225 | printchar (unsigned int ch, Lisp_Object fun) |
38010d50 | 226 | { |
0788646c GM |
227 | if (!NILP (fun) && !EQ (fun, Qt)) |
228 | call1 (fun, make_number (ch)); | |
229 | else | |
38010d50 | 230 | { |
19a86a03 KH |
231 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
232 | int len = CHAR_STRING (ch, str); | |
233 | ||
09eddb56 | 234 | QUIT; |
177c0ea7 | 235 | |
0788646c | 236 | if (NILP (fun)) |
9a4d01d8 | 237 | { |
0788646c GM |
238 | if (print_buffer_pos_byte + len >= print_buffer_size) |
239 | print_buffer = (char *) xrealloc (print_buffer, | |
240 | print_buffer_size *= 2); | |
72af86bd | 241 | memcpy (print_buffer + print_buffer_pos_byte, str, len); |
0788646c GM |
242 | print_buffer_pos += 1; |
243 | print_buffer_pos_byte += len; | |
9a4d01d8 | 244 | } |
0788646c | 245 | else if (noninteractive) |
1134b854 | 246 | { |
0788646c GM |
247 | fwrite (str, 1, len, stdout); |
248 | noninteractive_need_newline = 1; | |
1134b854 | 249 | } |
0788646c | 250 | else |
d366d2e4 | 251 | { |
0788646c | 252 | int multibyte_p |
4b4deea2 | 253 | = !NILP (BVAR (current_buffer, enable_multibyte_characters)); |
177c0ea7 | 254 | |
eb7b678b | 255 | setup_echo_area_for_printing (multibyte_p); |
0788646c | 256 | insert_char (ch); |
09125ef8 | 257 | message_dolog ((char *) str, len, 0, multibyte_p); |
d366d2e4 | 258 | } |
38010d50 | 259 | } |
38010d50 JB |
260 | } |
261 | ||
0788646c GM |
262 | |
263 | /* Output SIZE characters, SIZE_BYTE bytes from string PTR using | |
264 | method PRINTCHARFUN. If SIZE < 0, use the string length of PTR for | |
265 | both SIZE and SIZE_BYTE. PRINTCHARFUN nil means output to | |
266 | print_buffer. PRINTCHARFUN t means output to the echo area or to | |
267 | stdout if non-interactive. If neither nil nor t, call Lisp | |
268 | function PRINTCHARFUN for each character printed. MULTIBYTE | |
efb15f96 RS |
269 | non-zero means PTR contains multibyte characters. |
270 | ||
271 | In the case where PRINTCHARFUN is nil, it is safe for PTR to point | |
272 | to data in a Lisp string. Otherwise that is not safe. */ | |
0788646c | 273 | |
38010d50 | 274 | static void |
db063399 | 275 | strout (const char *ptr, EMACS_INT size, EMACS_INT size_byte, |
1db5b1ad | 276 | Lisp_Object printcharfun) |
38010d50 | 277 | { |
087e3c46 | 278 | if (size < 0) |
dc2a0b79 | 279 | size_byte = size = strlen (ptr); |
087e3c46 | 280 | |
0788646c | 281 | if (NILP (printcharfun)) |
38010d50 | 282 | { |
dc2a0b79 | 283 | if (print_buffer_pos_byte + size_byte > print_buffer_size) |
6fec5601 | 284 | { |
dc2a0b79 | 285 | print_buffer_size = print_buffer_size * 2 + size_byte; |
6fec5601 RS |
286 | print_buffer = (char *) xrealloc (print_buffer, |
287 | print_buffer_size); | |
288 | } | |
72af86bd | 289 | memcpy (print_buffer + print_buffer_pos_byte, ptr, size_byte); |
6fec5601 | 290 | print_buffer_pos += size; |
dc2a0b79 | 291 | print_buffer_pos_byte += size_byte; |
38010d50 | 292 | } |
7b0cb8a0 | 293 | else if (noninteractive && EQ (printcharfun, Qt)) |
38010d50 | 294 | { |
0788646c GM |
295 | fwrite (ptr, 1, size_byte, stdout); |
296 | noninteractive_need_newline = 1; | |
297 | } | |
298 | else if (EQ (printcharfun, Qt)) | |
299 | { | |
300 | /* Output to echo area. We're trying to avoid a little overhead | |
301 | here, that's the reason we don't call printchar to do the | |
302 | job. */ | |
303 | int i; | |
304 | int multibyte_p | |
4b4deea2 | 305 | = !NILP (BVAR (current_buffer, enable_multibyte_characters)); |
177c0ea7 | 306 | |
eb7b678b | 307 | setup_echo_area_for_printing (multibyte_p); |
0788646c | 308 | message_dolog (ptr, size_byte, 0, multibyte_p); |
177c0ea7 | 309 | |
0788646c | 310 | if (size == size_byte) |
38010d50 | 311 | { |
0788646c | 312 | for (i = 0; i < size; ++i) |
bcdbfd36 | 313 | insert_char ((unsigned char) *ptr++); |
38010d50 | 314 | } |
0788646c | 315 | else |
38010d50 | 316 | { |
0788646c GM |
317 | int len; |
318 | for (i = 0; i < size_byte; i += len) | |
aec2b95b | 319 | { |
09125ef8 PE |
320 | int ch = STRING_CHAR_AND_LENGTH ((const unsigned char *) ptr + i, |
321 | len); | |
0788646c | 322 | insert_char (ch); |
aec2b95b | 323 | } |
38010d50 | 324 | } |
0788646c GM |
325 | } |
326 | else | |
327 | { | |
328 | /* PRINTCHARFUN is a Lisp function. */ | |
da43f021 | 329 | EMACS_INT i = 0; |
38010d50 | 330 | |
0788646c | 331 | if (size == size_byte) |
4ad8bb20 | 332 | { |
0788646c | 333 | while (i < size_byte) |
4ad8bb20 | 334 | { |
0788646c GM |
335 | int ch = ptr[i++]; |
336 | PRINTCHAR (ch); | |
4ad8bb20 | 337 | } |
4ad8bb20 | 338 | } |
0788646c | 339 | else |
087e3c46 | 340 | { |
0788646c GM |
341 | while (i < size_byte) |
342 | { | |
343 | /* Here, we must convert each multi-byte form to the | |
344 | corresponding character code before handing it to | |
345 | PRINTCHAR. */ | |
346 | int len; | |
09125ef8 PE |
347 | int ch = STRING_CHAR_AND_LENGTH ((const unsigned char *) ptr + i, |
348 | len); | |
0788646c GM |
349 | PRINTCHAR (ch); |
350 | i += len; | |
351 | } | |
087e3c46 | 352 | } |
38010d50 | 353 | } |
38010d50 JB |
354 | } |
355 | ||
356 | /* Print the contents of a string STRING using PRINTCHARFUN. | |
ed2c35ef RS |
357 | It isn't safe to use strout in many cases, |
358 | because printing one char can relocate. */ | |
38010d50 | 359 | |
dc2a0b79 | 360 | static void |
971de7fb | 361 | print_string (Lisp_Object string, Lisp_Object printcharfun) |
38010d50 | 362 | { |
6fec5601 | 363 | if (EQ (printcharfun, Qt) || NILP (printcharfun)) |
375fcc09 | 364 | { |
db063399 | 365 | EMACS_INT chars; |
375fcc09 | 366 | |
8b4b4467 KH |
367 | if (print_escape_nonascii) |
368 | string = string_escape_byte8 (string); | |
369 | ||
375fcc09 | 370 | if (STRING_MULTIBYTE (string)) |
d5db4077 | 371 | chars = SCHARS (string); |
8b4b4467 KH |
372 | else if (! print_escape_nonascii |
373 | && (EQ (printcharfun, Qt) | |
4b4deea2 TT |
374 | ? ! NILP (BVAR (&buffer_defaults, enable_multibyte_characters)) |
375 | : ! NILP (BVAR (current_buffer, enable_multibyte_characters)))) | |
a76ef35d KH |
376 | { |
377 | /* If unibyte string STRING contains 8-bit codes, we must | |
378 | convert STRING to a multibyte string containing the same | |
379 | character codes. */ | |
380 | Lisp_Object newstr; | |
db063399 | 381 | EMACS_INT bytes; |
a76ef35d | 382 | |
d5db4077 KR |
383 | chars = SBYTES (string); |
384 | bytes = parse_str_to_multibyte (SDATA (string), chars); | |
a76ef35d KH |
385 | if (chars < bytes) |
386 | { | |
387 | newstr = make_uninit_multibyte_string (chars, bytes); | |
72af86bd | 388 | memcpy (SDATA (newstr), SDATA (string), chars); |
d5db4077 | 389 | str_to_multibyte (SDATA (newstr), bytes, chars); |
a76ef35d KH |
390 | string = newstr; |
391 | } | |
392 | } | |
375fcc09 | 393 | else |
d5db4077 | 394 | chars = SBYTES (string); |
375fcc09 | 395 | |
efb15f96 RS |
396 | if (EQ (printcharfun, Qt)) |
397 | { | |
398 | /* Output to echo area. */ | |
db063399 | 399 | EMACS_INT nbytes = SBYTES (string); |
efb15f96 RS |
400 | char *buffer; |
401 | ||
402 | /* Copy the string contents so that relocation of STRING by | |
403 | GC does not cause trouble. */ | |
404 | USE_SAFE_ALLOCA; | |
405 | ||
406 | SAFE_ALLOCA (buffer, char *, nbytes); | |
72af86bd | 407 | memcpy (buffer, SDATA (string), nbytes); |
efb15f96 | 408 | |
1db5b1ad | 409 | strout (buffer, chars, SBYTES (string), printcharfun); |
efb15f96 RS |
410 | |
411 | SAFE_FREE (); | |
412 | } | |
413 | else | |
414 | /* No need to copy, since output to print_buffer can't GC. */ | |
1db5b1ad | 415 | strout (SSDATA (string), chars, SBYTES (string), printcharfun); |
375fcc09 | 416 | } |
38010d50 JB |
417 | else |
418 | { | |
dc2a0b79 RS |
419 | /* Otherwise, string may be relocated by printing one char. |
420 | So re-fetch the string address for each character. */ | |
da43f021 | 421 | EMACS_INT i; |
db063399 LMI |
422 | EMACS_INT size = SCHARS (string); |
423 | EMACS_INT size_byte = SBYTES (string); | |
38010d50 JB |
424 | struct gcpro gcpro1; |
425 | GCPRO1 (string); | |
dc2a0b79 RS |
426 | if (size == size_byte) |
427 | for (i = 0; i < size; i++) | |
d5db4077 | 428 | PRINTCHAR (SREF (string, i)); |
dc2a0b79 | 429 | else |
6b61353c | 430 | for (i = 0; i < size_byte; ) |
dc2a0b79 RS |
431 | { |
432 | /* Here, we must convert each multi-byte form to the | |
433 | corresponding character code before handing it to PRINTCHAR. */ | |
434 | int len; | |
62a6e103 | 435 | int ch = STRING_CHAR_AND_LENGTH (SDATA (string) + i, len); |
dc2a0b79 RS |
436 | PRINTCHAR (ch); |
437 | i += len; | |
438 | } | |
38010d50 JB |
439 | UNGCPRO; |
440 | } | |
441 | } | |
442 | \f | |
443 | DEFUN ("write-char", Fwrite_char, Swrite_char, 1, 2, 0, | |
8c1a1077 PJ |
444 | doc: /* Output character CHARACTER to stream PRINTCHARFUN. |
445 | PRINTCHARFUN defaults to the value of `standard-output' (which see). */) | |
5842a27b | 446 | (Lisp_Object character, Lisp_Object printcharfun) |
38010d50 | 447 | { |
081e0581 | 448 | PRINTDECLARE; |
38010d50 | 449 | |
10eebdbb | 450 | if (NILP (printcharfun)) |
38010d50 | 451 | printcharfun = Vstandard_output; |
b7826503 | 452 | CHECK_NUMBER (character); |
38010d50 | 453 | PRINTPREPARE; |
3738a371 | 454 | PRINTCHAR (XINT (character)); |
38010d50 | 455 | PRINTFINISH; |
3738a371 | 456 | return character; |
38010d50 JB |
457 | } |
458 | ||
dc2a0b79 RS |
459 | /* Used from outside of print.c to print a block of SIZE |
460 | single-byte chars at DATA on the default output stream. | |
38010d50 JB |
461 | Do not use this on the contents of a Lisp string. */ |
462 | ||
dc22f25e | 463 | void |
a8fe7202 | 464 | write_string (const char *data, int size) |
38010d50 | 465 | { |
081e0581 | 466 | PRINTDECLARE; |
38010d50 | 467 | Lisp_Object printcharfun; |
38010d50 JB |
468 | |
469 | printcharfun = Vstandard_output; | |
470 | ||
471 | PRINTPREPARE; | |
1db5b1ad | 472 | strout (data, size, size, printcharfun); |
38010d50 JB |
473 | PRINTFINISH; |
474 | } | |
475 | ||
2f7c71a1 AS |
476 | /* Used to print a block of SIZE single-byte chars at DATA on a |
477 | specified stream PRINTCHARFUN. | |
38010d50 JB |
478 | Do not use this on the contents of a Lisp string. */ |
479 | ||
2f7c71a1 | 480 | static void |
a8fe7202 | 481 | write_string_1 (const char *data, int size, Lisp_Object printcharfun) |
38010d50 | 482 | { |
081e0581 | 483 | PRINTDECLARE; |
38010d50 JB |
484 | |
485 | PRINTPREPARE; | |
1db5b1ad | 486 | strout (data, size, size, printcharfun); |
38010d50 JB |
487 | PRINTFINISH; |
488 | } | |
489 | ||
490 | ||
38010d50 | 491 | void |
971de7fb | 492 | temp_output_buffer_setup (const char *bufname) |
38010d50 | 493 | { |
aed13378 | 494 | int count = SPECPDL_INDEX (); |
38010d50 JB |
495 | register struct buffer *old = current_buffer; |
496 | register Lisp_Object buf; | |
497 | ||
d9c21094 RS |
498 | record_unwind_protect (set_buffer_if_live, Fcurrent_buffer ()); |
499 | ||
38010d50 JB |
500 | Fset_buffer (Fget_buffer_create (build_string (bufname))); |
501 | ||
9756ea0f | 502 | Fkill_all_local_variables (); |
fd531951 | 503 | delete_all_overlays (current_buffer); |
4b4deea2 TT |
504 | BVAR (current_buffer, directory) = BVAR (old, directory); |
505 | BVAR (current_buffer, read_only) = Qnil; | |
506 | BVAR (current_buffer, filename) = Qnil; | |
507 | BVAR (current_buffer, undo_list) = Qt; | |
b3f6010e SM |
508 | eassert (current_buffer->overlays_before == NULL); |
509 | eassert (current_buffer->overlays_after == NULL); | |
4b4deea2 TT |
510 | BVAR (current_buffer, enable_multibyte_characters) |
511 | = BVAR (&buffer_defaults, enable_multibyte_characters); | |
d28eab19 KH |
512 | specbind (Qinhibit_read_only, Qt); |
513 | specbind (Qinhibit_modification_hooks, Qt); | |
38010d50 | 514 | Ferase_buffer (); |
633307b5 | 515 | XSETBUFFER (buf, current_buffer); |
38010d50 | 516 | |
98040cf1 | 517 | Frun_hooks (1, &Qtemp_buffer_setup_hook); |
d9c21094 RS |
518 | |
519 | unbind_to (count, Qnil); | |
520 | ||
521 | specbind (Qstandard_output, buf); | |
38010d50 | 522 | } |
38010d50 | 523 | \f |
971de7fb DN |
524 | static void print (Lisp_Object obj, register Lisp_Object printcharfun, int escapeflag); |
525 | static void print_preprocess (Lisp_Object obj); | |
526 | static void print_preprocess_string (INTERVAL interval, Lisp_Object arg); | |
527 | static void print_object (Lisp_Object obj, register Lisp_Object printcharfun, int escapeflag); | |
38010d50 | 528 | |
16a97296 | 529 | DEFUE ("terpri", Fterpri, Sterpri, 0, 1, 0, |
8c1a1077 PJ |
530 | doc: /* Output a newline to stream PRINTCHARFUN. |
531 | If PRINTCHARFUN is omitted or nil, the value of `standard-output' is used. */) | |
5842a27b | 532 | (Lisp_Object printcharfun) |
38010d50 | 533 | { |
081e0581 | 534 | PRINTDECLARE; |
38010d50 | 535 | |
10eebdbb | 536 | if (NILP (printcharfun)) |
38010d50 JB |
537 | printcharfun = Vstandard_output; |
538 | PRINTPREPARE; | |
539 | PRINTCHAR ('\n'); | |
540 | PRINTFINISH; | |
541 | return Qt; | |
542 | } | |
543 | ||
16a97296 | 544 | DEFUE ("prin1", Fprin1, Sprin1, 1, 2, 0, |
8c1a1077 PJ |
545 | doc: /* Output the printed representation of OBJECT, any Lisp object. |
546 | Quoting characters are printed when needed to make output that `read' | |
9474c847 | 547 | can handle, whenever this is possible. For complex objects, the behavior |
7fab9223 | 548 | is controlled by `print-level' and `print-length', which see. |
8c1a1077 PJ |
549 | |
550 | OBJECT is any of the Lisp data types: a number, a string, a symbol, | |
551 | a list, a buffer, a window, a frame, etc. | |
552 | ||
553 | A printed representation of an object is text which describes that object. | |
554 | ||
555 | Optional argument PRINTCHARFUN is the output stream, which can be one | |
556 | of these: | |
557 | ||
558 | - a buffer, in which case output is inserted into that buffer at point; | |
559 | - a marker, in which case output is inserted at marker's position; | |
560 | - a function, in which case that function is called once for each | |
561 | character of OBJECT's printed representation; | |
562 | - a symbol, in which case that symbol's function definition is called; or | |
563 | - t, in which case the output is displayed in the echo area. | |
564 | ||
565 | If PRINTCHARFUN is omitted, the value of `standard-output' (which see) | |
566 | is used instead. */) | |
5842a27b | 567 | (Lisp_Object object, Lisp_Object printcharfun) |
38010d50 | 568 | { |
081e0581 | 569 | PRINTDECLARE; |
38010d50 | 570 | |
10eebdbb | 571 | if (NILP (printcharfun)) |
38010d50 JB |
572 | printcharfun = Vstandard_output; |
573 | PRINTPREPARE; | |
3738a371 | 574 | print (object, printcharfun, 1); |
38010d50 | 575 | PRINTFINISH; |
3738a371 | 576 | return object; |
38010d50 JB |
577 | } |
578 | ||
579 | /* a buffer which is used to hold output being built by prin1-to-string */ | |
580 | Lisp_Object Vprin1_to_string_buffer; | |
581 | ||
16a97296 | 582 | DEFUE ("prin1-to-string", Fprin1_to_string, Sprin1_to_string, 1, 2, 0, |
fd4d156b RS |
583 | doc: /* Return a string containing the printed representation of OBJECT. |
584 | OBJECT can be any Lisp object. This function outputs quoting characters | |
cf393f9b | 585 | when necessary to make output that `read' can handle, whenever possible, |
a2612656 EZ |
586 | unless the optional second argument NOESCAPE is non-nil. For complex objects, |
587 | the behavior is controlled by `print-level' and `print-length', which see. | |
8c1a1077 PJ |
588 | |
589 | OBJECT is any of the Lisp data types: a number, a string, a symbol, | |
590 | a list, a buffer, a window, a frame, etc. | |
591 | ||
592 | A printed representation of an object is text which describes that object. */) | |
5842a27b | 593 | (Lisp_Object object, Lisp_Object noescape) |
38010d50 | 594 | { |
081e0581 | 595 | Lisp_Object printcharfun; |
ca2de342 RS |
596 | /* struct gcpro gcpro1, gcpro2; */ |
597 | Lisp_Object save_deactivate_mark; | |
1a7de17e | 598 | int count = SPECPDL_INDEX (); |
6b61353c | 599 | struct buffer *previous; |
ca2de342 RS |
600 | |
601 | specbind (Qinhibit_modification_hooks, Qt); | |
2a42e8f6 | 602 | |
6b61353c KH |
603 | { |
604 | PRINTDECLARE; | |
605 | ||
606 | /* Save and restore this--we are altering a buffer | |
607 | but we don't want to deactivate the mark just for that. | |
608 | No need for specbind, since errors deactivate the mark. */ | |
609 | save_deactivate_mark = Vdeactivate_mark; | |
610 | /* GCPRO2 (object, save_deactivate_mark); */ | |
611 | abort_on_gc++; | |
612 | ||
613 | printcharfun = Vprin1_to_string_buffer; | |
614 | PRINTPREPARE; | |
615 | print (object, printcharfun, NILP (noescape)); | |
616 | /* Make Vprin1_to_string_buffer be the default buffer after PRINTFINSH */ | |
617 | PRINTFINISH; | |
618 | } | |
38010d50 | 619 | |
6b61353c | 620 | previous = current_buffer; |
38010d50 | 621 | set_buffer_internal (XBUFFER (Vprin1_to_string_buffer)); |
3738a371 | 622 | object = Fbuffer_string (); |
b51ee131 SM |
623 | if (SBYTES (object) == SCHARS (object)) |
624 | STRING_SET_UNIBYTE (object); | |
38010d50 | 625 | |
28b8f740 | 626 | /* Note that this won't make prepare_to_modify_buffer call |
6b61353c KH |
627 | ask-user-about-supersession-threat because this buffer |
628 | does not visit a file. */ | |
38010d50 | 629 | Ferase_buffer (); |
6b61353c | 630 | set_buffer_internal (previous); |
2a42e8f6 | 631 | |
ca2de342 RS |
632 | Vdeactivate_mark = save_deactivate_mark; |
633 | /* UNGCPRO; */ | |
38010d50 | 634 | |
ca2de342 RS |
635 | abort_on_gc--; |
636 | return unbind_to (count, object); | |
38010d50 JB |
637 | } |
638 | ||
16a97296 | 639 | DEFUE ("princ", Fprinc, Sprinc, 1, 2, 0, |
8c1a1077 PJ |
640 | doc: /* Output the printed representation of OBJECT, any Lisp object. |
641 | No quoting characters are used; no delimiters are printed around | |
642 | the contents of strings. | |
643 | ||
644 | OBJECT is any of the Lisp data types: a number, a string, a symbol, | |
645 | a list, a buffer, a window, a frame, etc. | |
646 | ||
647 | A printed representation of an object is text which describes that object. | |
648 | ||
649 | Optional argument PRINTCHARFUN is the output stream, which can be one | |
650 | of these: | |
651 | ||
652 | - a buffer, in which case output is inserted into that buffer at point; | |
653 | - a marker, in which case output is inserted at marker's position; | |
654 | - a function, in which case that function is called once for each | |
655 | character of OBJECT's printed representation; | |
656 | - a symbol, in which case that symbol's function definition is called; or | |
657 | - t, in which case the output is displayed in the echo area. | |
658 | ||
659 | If PRINTCHARFUN is omitted, the value of `standard-output' (which see) | |
660 | is used instead. */) | |
5842a27b | 661 | (Lisp_Object object, Lisp_Object printcharfun) |
38010d50 | 662 | { |
081e0581 | 663 | PRINTDECLARE; |
38010d50 | 664 | |
10eebdbb | 665 | if (NILP (printcharfun)) |
38010d50 JB |
666 | printcharfun = Vstandard_output; |
667 | PRINTPREPARE; | |
3738a371 | 668 | print (object, printcharfun, 0); |
38010d50 | 669 | PRINTFINISH; |
3738a371 | 670 | return object; |
38010d50 JB |
671 | } |
672 | ||
16a97296 | 673 | DEFUE ("print", Fprint, Sprint, 1, 2, 0, |
8c1a1077 PJ |
674 | doc: /* Output the printed representation of OBJECT, with newlines around it. |
675 | Quoting characters are printed when needed to make output that `read' | |
9474c847 | 676 | can handle, whenever this is possible. For complex objects, the behavior |
7fab9223 | 677 | is controlled by `print-level' and `print-length', which see. |
8c1a1077 PJ |
678 | |
679 | OBJECT is any of the Lisp data types: a number, a string, a symbol, | |
680 | a list, a buffer, a window, a frame, etc. | |
681 | ||
682 | A printed representation of an object is text which describes that object. | |
683 | ||
684 | Optional argument PRINTCHARFUN is the output stream, which can be one | |
685 | of these: | |
686 | ||
687 | - a buffer, in which case output is inserted into that buffer at point; | |
688 | - a marker, in which case output is inserted at marker's position; | |
689 | - a function, in which case that function is called once for each | |
690 | character of OBJECT's printed representation; | |
691 | - a symbol, in which case that symbol's function definition is called; or | |
692 | - t, in which case the output is displayed in the echo area. | |
693 | ||
694 | If PRINTCHARFUN is omitted, the value of `standard-output' (which see) | |
695 | is used instead. */) | |
5842a27b | 696 | (Lisp_Object object, Lisp_Object printcharfun) |
38010d50 | 697 | { |
081e0581 | 698 | PRINTDECLARE; |
38010d50 JB |
699 | struct gcpro gcpro1; |
700 | ||
10eebdbb | 701 | if (NILP (printcharfun)) |
38010d50 | 702 | printcharfun = Vstandard_output; |
3738a371 | 703 | GCPRO1 (object); |
38010d50 | 704 | PRINTPREPARE; |
38010d50 | 705 | PRINTCHAR ('\n'); |
3738a371 | 706 | print (object, printcharfun, 1); |
38010d50 JB |
707 | PRINTCHAR ('\n'); |
708 | PRINTFINISH; | |
38010d50 | 709 | UNGCPRO; |
3738a371 | 710 | return object; |
38010d50 JB |
711 | } |
712 | ||
713 | /* The subroutine object for external-debugging-output is kept here | |
714 | for the convenience of the debugger. */ | |
715 | Lisp_Object Qexternal_debugging_output; | |
716 | ||
4746118a | 717 | DEFUN ("external-debugging-output", Fexternal_debugging_output, Sexternal_debugging_output, 1, 1, 0, |
8c1a1077 PJ |
718 | doc: /* Write CHARACTER to stderr. |
719 | You can call print while debugging emacs, and pass it this function | |
720 | to make it write to the debugging output. */) | |
5842a27b | 721 | (Lisp_Object character) |
38010d50 | 722 | { |
b7826503 | 723 | CHECK_NUMBER (character); |
db063399 | 724 | putc ((int) XINT (character), stderr); |
cd22039d RS |
725 | |
726 | #ifdef WINDOWSNT | |
727 | /* Send the output to a debugger (nothing happens if there isn't one). */ | |
945b0111 EZ |
728 | if (print_output_debug_flag) |
729 | { | |
730 | char buf[2] = {(char) XINT (character), '\0'}; | |
731 | OutputDebugString (buf); | |
732 | } | |
cd22039d RS |
733 | #endif |
734 | ||
38010d50 JB |
735 | return character; |
736 | } | |
cf1bb91b | 737 | |
c33f8948 RS |
738 | /* This function is never called. Its purpose is to prevent |
739 | print_output_debug_flag from being optimized away. */ | |
740 | ||
dae581bf | 741 | void |
971de7fb | 742 | debug_output_compilation_hack (int x) |
c33f8948 RS |
743 | { |
744 | print_output_debug_flag = x; | |
745 | } | |
6b61353c | 746 | |
cd3587c1 | 747 | #if defined (GNU_LINUX) |
6b61353c KH |
748 | |
749 | /* This functionality is not vitally important in general, so we rely on | |
750 | non-portable ability to use stderr as lvalue. */ | |
751 | ||
752 | #define WITH_REDIRECT_DEBUGGING_OUTPUT 1 | |
753 | ||
754 | FILE *initial_stderr_stream = NULL; | |
755 | ||
756 | DEFUN ("redirect-debugging-output", Fredirect_debugging_output, Sredirect_debugging_output, | |
757 | 1, 2, | |
758 | "FDebug output file: \nP", | |
759 | doc: /* Redirect debugging output (stderr stream) to file FILE. | |
760 | If FILE is nil, reset target to the initial stderr stream. | |
761 | Optional arg APPEND non-nil (interactively, with prefix arg) means | |
28b8f740 | 762 | append to existing target file. */) |
5842a27b | 763 | (Lisp_Object file, Lisp_Object append) |
6b61353c KH |
764 | { |
765 | if (initial_stderr_stream != NULL) | |
f9467be3 YM |
766 | { |
767 | BLOCK_INPUT; | |
768 | fclose (stderr); | |
769 | UNBLOCK_INPUT; | |
770 | } | |
6b61353c KH |
771 | stderr = initial_stderr_stream; |
772 | initial_stderr_stream = NULL; | |
773 | ||
774 | if (STRINGP (file)) | |
775 | { | |
776 | file = Fexpand_file_name (file, Qnil); | |
777 | initial_stderr_stream = stderr; | |
d4d7173a | 778 | stderr = fopen (SSDATA (file), NILP (append) ? "w" : "a"); |
6b61353c KH |
779 | if (stderr == NULL) |
780 | { | |
781 | stderr = initial_stderr_stream; | |
782 | initial_stderr_stream = NULL; | |
783 | report_file_error ("Cannot open debugging output stream", | |
784 | Fcons (file, Qnil)); | |
785 | } | |
786 | } | |
787 | return Qnil; | |
788 | } | |
789 | #endif /* GNU_LINUX */ | |
790 | ||
791 | ||
cf1bb91b RS |
792 | /* This is the interface for debugging printing. */ |
793 | ||
794 | void | |
971de7fb | 795 | debug_print (Lisp_Object arg) |
cf1bb91b RS |
796 | { |
797 | Fprin1 (arg, Qexternal_debugging_output); | |
3684eb78 | 798 | fprintf (stderr, "\r\n"); |
cf1bb91b | 799 | } |
bd90dcd0 KS |
800 | |
801 | void | |
971de7fb | 802 | safe_debug_print (Lisp_Object arg) |
bd90dcd0 KS |
803 | { |
804 | int valid = valid_lisp_object_p (arg); | |
805 | ||
806 | if (valid > 0) | |
807 | debug_print (arg); | |
808 | else | |
809 | fprintf (stderr, "#<%s_LISP_OBJECT 0x%08lx>\r\n", | |
810 | !valid ? "INVALID" : "SOME", | |
4c37a414 | 811 | (unsigned long) XHASH (arg) |
bd90dcd0 KS |
812 | ); |
813 | } | |
814 | ||
38010d50 | 815 | \f |
16a97296 | 816 | DEFUE ("error-message-string", Ferror_message_string, Serror_message_string, |
113620cc | 817 | 1, 1, 0, |
6b61353c KH |
818 | doc: /* Convert an error value (ERROR-SYMBOL . DATA) to an error message. |
819 | See Info anchor `(elisp)Definition of signal' for some details on how this | |
820 | error message is constructed. */) | |
5842a27b | 821 | (Lisp_Object obj) |
113620cc KH |
822 | { |
823 | struct buffer *old = current_buffer; | |
63fbf4ff | 824 | Lisp_Object value; |
113620cc KH |
825 | struct gcpro gcpro1; |
826 | ||
0872e11f RS |
827 | /* If OBJ is (error STRING), just return STRING. |
828 | That is not only faster, it also avoids the need to allocate | |
829 | space here when the error is due to memory full. */ | |
94b342ce KR |
830 | if (CONSP (obj) && EQ (XCAR (obj), Qerror) |
831 | && CONSP (XCDR (obj)) | |
832 | && STRINGP (XCAR (XCDR (obj))) | |
833 | && NILP (XCDR (XCDR (obj)))) | |
834 | return XCAR (XCDR (obj)); | |
0872e11f | 835 | |
240e806c | 836 | print_error_message (obj, Vprin1_to_string_buffer, 0, Qnil); |
113620cc KH |
837 | |
838 | set_buffer_internal (XBUFFER (Vprin1_to_string_buffer)); | |
839 | value = Fbuffer_string (); | |
840 | ||
841 | GCPRO1 (value); | |
842 | Ferase_buffer (); | |
843 | set_buffer_internal (old); | |
844 | UNGCPRO; | |
845 | ||
846 | return value; | |
847 | } | |
848 | ||
c02279de | 849 | /* Print an error message for the error DATA onto Lisp output stream |
7ab56fea RS |
850 | STREAM (suitable for the print functions). |
851 | CONTEXT is a C string describing the context of the error. | |
852 | CALLER is the Lisp function inside which the error was signaled. */ | |
113620cc | 853 | |
dc22f25e | 854 | void |
a8fe7202 AS |
855 | print_error_message (Lisp_Object data, Lisp_Object stream, const char *context, |
856 | Lisp_Object caller) | |
113620cc KH |
857 | { |
858 | Lisp_Object errname, errmsg, file_error, tail; | |
859 | struct gcpro gcpro1; | |
860 | int i; | |
861 | ||
240e806c RS |
862 | if (context != 0) |
863 | write_string_1 (context, -1, stream); | |
864 | ||
865 | /* If we know from where the error was signaled, show it in | |
866 | *Messages*. */ | |
867 | if (!NILP (caller) && SYMBOLP (caller)) | |
868 | { | |
11fb15d5 KS |
869 | Lisp_Object cname = SYMBOL_NAME (caller); |
870 | char *name = alloca (SBYTES (cname)); | |
72af86bd | 871 | memcpy (name, SDATA (cname), SBYTES (cname)); |
826256dd | 872 | message_dolog (name, SBYTES (cname), 0, 0); |
240e806c RS |
873 | message_dolog (": ", 2, 0, 0); |
874 | } | |
875 | ||
113620cc KH |
876 | errname = Fcar (data); |
877 | ||
878 | if (EQ (errname, Qerror)) | |
879 | { | |
880 | data = Fcdr (data); | |
c02279de GM |
881 | if (!CONSP (data)) |
882 | data = Qnil; | |
113620cc KH |
883 | errmsg = Fcar (data); |
884 | file_error = Qnil; | |
885 | } | |
886 | else | |
887 | { | |
c02279de | 888 | Lisp_Object error_conditions; |
113620cc | 889 | errmsg = Fget (errname, Qerror_message); |
c02279de GM |
890 | error_conditions = Fget (errname, Qerror_conditions); |
891 | file_error = Fmemq (Qfile_error, error_conditions); | |
113620cc KH |
892 | } |
893 | ||
894 | /* Print an error message including the data items. */ | |
895 | ||
896 | tail = Fcdr_safe (data); | |
897 | GCPRO1 (tail); | |
898 | ||
899 | /* For file-error, make error message by concatenating | |
900 | all the data items. They are all strings. */ | |
8c29413d | 901 | if (!NILP (file_error) && CONSP (tail)) |
94b342ce | 902 | errmsg = XCAR (tail), tail = XCDR (tail); |
113620cc KH |
903 | |
904 | if (STRINGP (errmsg)) | |
905 | Fprinc (errmsg, stream); | |
906 | else | |
907 | write_string_1 ("peculiar error", -1, stream); | |
908 | ||
e7b9e80f | 909 | for (i = 0; CONSP (tail); tail = XCDR (tail), i = 1) |
113620cc | 910 | { |
c02279de GM |
911 | Lisp_Object obj; |
912 | ||
113620cc | 913 | write_string_1 (i ? ", " : ": ", 2, stream); |
c02279de GM |
914 | obj = XCAR (tail); |
915 | if (!NILP (file_error) || EQ (errname, Qend_of_file)) | |
916 | Fprinc (obj, stream); | |
113620cc | 917 | else |
c02279de | 918 | Fprin1 (obj, stream); |
113620cc | 919 | } |
177c0ea7 | 920 | |
113620cc KH |
921 | UNGCPRO; |
922 | } | |
38010d50 | 923 | |
c02279de GM |
924 | |
925 | \f | |
38010d50 | 926 | /* |
edb2a707 | 927 | * The buffer should be at least as large as the max string size of the |
8e6208c5 | 928 | * largest float, printed in the biggest notation. This is undoubtedly |
38010d50 JB |
929 | * 20d float_output_format, with the negative of the C-constant "HUGE" |
930 | * from <math.h>. | |
177c0ea7 | 931 | * |
38010d50 | 932 | * On the vax the worst case is -1e38 in 20d format which takes 61 bytes. |
177c0ea7 | 933 | * |
38010d50 JB |
934 | * I assume that IEEE-754 format numbers can take 329 bytes for the worst |
935 | * case of -1e307 in 20d float_output_format. What is one to do (short of | |
936 | * re-writing _doprnt to be more sane)? | |
937 | * -wsr | |
6e8e6bf2 | 938 | * Given the above, the buffer must be least FLOAT_TO_STRING_BUFSIZE bytes. |
38010d50 | 939 | */ |
edb2a707 RS |
940 | |
941 | void | |
57ace6d0 | 942 | float_to_string (char *buf, double data) |
38010d50 | 943 | { |
57ace6d0 | 944 | char *cp; |
322890c4 | 945 | int width; |
177c0ea7 | 946 | |
7f45de2d RS |
947 | /* Check for plus infinity in a way that won't lose |
948 | if there is no plus infinity. */ | |
949 | if (data == data / 2 && data > 1.0) | |
950 | { | |
951 | strcpy (buf, "1.0e+INF"); | |
952 | return; | |
953 | } | |
954 | /* Likewise for minus infinity. */ | |
955 | if (data == data / 2 && data < -1.0) | |
956 | { | |
957 | strcpy (buf, "-1.0e+INF"); | |
958 | return; | |
959 | } | |
960 | /* Check for NaN in a way that won't fail if there are no NaNs. */ | |
961 | if (! (data * 0.0 >= 0.0)) | |
962 | { | |
68c45bf0 PE |
963 | /* Prepend "-" if the NaN's sign bit is negative. |
964 | The sign bit of a double is the bit that is 1 in -0.0. */ | |
965 | int i; | |
966 | union { double d; char c[sizeof (double)]; } u_data, u_minus_zero; | |
967 | u_data.d = data; | |
968 | u_minus_zero.d = - 0.0; | |
969 | for (i = 0; i < sizeof (double); i++) | |
970 | if (u_data.c[i] & u_minus_zero.c[i]) | |
971 | { | |
972 | *buf++ = '-'; | |
973 | break; | |
974 | } | |
177c0ea7 | 975 | |
7f45de2d RS |
976 | strcpy (buf, "0.0e+NaN"); |
977 | return; | |
978 | } | |
979 | ||
10eebdbb | 980 | if (NILP (Vfloat_output_format) |
d4ae1f7e | 981 | || !STRINGP (Vfloat_output_format)) |
38010d50 | 982 | lose: |
322890c4 | 983 | { |
f356c3fb | 984 | /* Generate the fewest number of digits that represent the |
6e8e6bf2 | 985 | floating point value without losing information. */ |
75b43359 MWD |
986 | dtoastr (buf, FLOAT_TO_STRING_BUFSIZE - 2, 0, 0, data); |
987 | /* The decimal point must be printed, or the byte compiler can | |
988 | get confused (Bug#8033). */ | |
989 | width = 1; | |
322890c4 | 990 | } |
38010d50 JB |
991 | else /* oink oink */ |
992 | { | |
993 | /* Check that the spec we have is fully valid. | |
994 | This means not only valid for printf, | |
995 | but meant for floats, and reasonable. */ | |
57ace6d0 | 996 | cp = SSDATA (Vfloat_output_format); |
38010d50 JB |
997 | |
998 | if (cp[0] != '%') | |
999 | goto lose; | |
1000 | if (cp[1] != '.') | |
1001 | goto lose; | |
1002 | ||
1003 | cp += 2; | |
c7b14277 JB |
1004 | |
1005 | /* Check the width specification. */ | |
322890c4 | 1006 | width = -1; |
c7b14277 | 1007 | if ('0' <= *cp && *cp <= '9') |
381cd4bb KH |
1008 | { |
1009 | width = 0; | |
1010 | do | |
1011 | width = (width * 10) + (*cp++ - '0'); | |
1012 | while (*cp >= '0' && *cp <= '9'); | |
1013 | ||
1014 | /* A precision of zero is valid only for %f. */ | |
1015 | if (width > DBL_DIG | |
1016 | || (width == 0 && *cp != 'f')) | |
1017 | goto lose; | |
1018 | } | |
38010d50 JB |
1019 | |
1020 | if (*cp != 'e' && *cp != 'f' && *cp != 'g') | |
1021 | goto lose; | |
1022 | ||
38010d50 JB |
1023 | if (cp[1] != 0) |
1024 | goto lose; | |
1025 | ||
42a5b22f | 1026 | sprintf (buf, SSDATA (Vfloat_output_format), data); |
38010d50 | 1027 | } |
edb2a707 | 1028 | |
c7b14277 JB |
1029 | /* Make sure there is a decimal point with digit after, or an |
1030 | exponent, so that the value is readable as a float. But don't do | |
322890c4 RS |
1031 | this with "%.0f"; it's valid for that not to produce a decimal |
1032 | point. Note that width can be 0 only for %.0f. */ | |
1033 | if (width != 0) | |
0601fd3d | 1034 | { |
c7b14277 JB |
1035 | for (cp = buf; *cp; cp++) |
1036 | if ((*cp < '0' || *cp > '9') && *cp != '-') | |
1037 | break; | |
0601fd3d | 1038 | |
c7b14277 JB |
1039 | if (*cp == '.' && cp[1] == 0) |
1040 | { | |
1041 | cp[1] = '0'; | |
1042 | cp[2] = 0; | |
1043 | } | |
75b43359 | 1044 | else if (*cp == 0) |
c7b14277 JB |
1045 | { |
1046 | *cp++ = '.'; | |
1047 | *cp++ = '0'; | |
1048 | *cp++ = 0; | |
1049 | } | |
edb2a707 | 1050 | } |
38010d50 | 1051 | } |
cc94f3b2 | 1052 | |
38010d50 JB |
1053 | \f |
1054 | static void | |
971de7fb | 1055 | print (Lisp_Object obj, register Lisp_Object printcharfun, int escapeflag) |
38010d50 | 1056 | { |
a22dec27 | 1057 | new_backquote_output = 0; |
38010d50 | 1058 | |
0f25ecc6 RS |
1059 | /* Reset print_number_index and Vprint_number_table only when |
1060 | the variable Vprint_continuous_numbering is nil. Otherwise, | |
1061 | the values of these variables will be kept between several | |
1062 | print functions. */ | |
e026eb89 KS |
1063 | if (NILP (Vprint_continuous_numbering) |
1064 | || NILP (Vprint_number_table)) | |
0f25ecc6 RS |
1065 | { |
1066 | print_number_index = 0; | |
1067 | Vprint_number_table = Qnil; | |
1068 | } | |
38010d50 | 1069 | |
0f25ecc6 RS |
1070 | /* Construct Vprint_number_table for print-gensym and print-circle. */ |
1071 | if (!NILP (Vprint_gensym) || !NILP (Vprint_circle)) | |
ec838c39 | 1072 | { |
e6d4cddd RS |
1073 | /* Construct Vprint_number_table. |
1074 | This increments print_number_index for the objects added. */ | |
9a6a4c40 | 1075 | print_depth = 0; |
0f25ecc6 | 1076 | print_preprocess (obj); |
e6d4cddd | 1077 | |
a65b85b5 SM |
1078 | if (HASH_TABLE_P (Vprint_number_table)) |
1079 | { /* Remove unnecessary objects, which appear only once in OBJ; | |
1080 | that is, whose status is Qt. | |
1081 | Maybe a better way to do that is to copy elements to | |
1082 | a new hash table. */ | |
1083 | struct Lisp_Hash_Table *h = XHASH_TABLE (Vprint_number_table); | |
1084 | int i; | |
e6d4cddd | 1085 | |
a65b85b5 SM |
1086 | for (i = 0; i < HASH_TABLE_SIZE (h); ++i) |
1087 | if (!NILP (HASH_HASH (h, i)) | |
1088 | && EQ (HASH_VALUE (h, i), Qt)) | |
1089 | Fremhash (HASH_KEY (h, i), Vprint_number_table); | |
1090 | } | |
0f25ecc6 RS |
1091 | } |
1092 | ||
9a6a4c40 | 1093 | print_depth = 0; |
0f25ecc6 RS |
1094 | print_object (obj, printcharfun, escapeflag); |
1095 | } | |
1096 | ||
fb103ca9 SM |
1097 | #define PRINT_CIRCLE_CANDIDATE_P(obj) \ |
1098 | (STRINGP (obj) || CONSP (obj) \ | |
1099 | || (VECTORLIKEP (obj) \ | |
1100 | && (VECTORP (obj) || COMPILEDP (obj) \ | |
1101 | || CHAR_TABLE_P (obj) || SUB_CHAR_TABLE_P (obj) \ | |
1102 | || HASH_TABLE_P (obj) || FONTP (obj))) \ | |
1103 | || (! NILP (Vprint_gensym) \ | |
1104 | && SYMBOLP (obj) \ | |
1105 | && !SYMBOL_INTERNED_P (obj))) | |
1106 | ||
0f25ecc6 RS |
1107 | /* Construct Vprint_number_table according to the structure of OBJ. |
1108 | OBJ itself and all its elements will be added to Vprint_number_table | |
1109 | recursively if it is a list, vector, compiled function, char-table, | |
1110 | string (its text properties will be traced), or a symbol that has | |
1111 | no obarray (this is for the print-gensym feature). | |
1112 | The status fields of Vprint_number_table mean whether each object appears | |
1113 | more than once in OBJ: Qnil at the first time, and Qt after that . */ | |
1114 | static void | |
971de7fb | 1115 | print_preprocess (Lisp_Object obj) |
0f25ecc6 | 1116 | { |
6b61353c KH |
1117 | int i; |
1118 | EMACS_INT size; | |
c1132671 RS |
1119 | int loop_count = 0; |
1120 | Lisp_Object halftail; | |
1121 | ||
15479e8b RS |
1122 | /* Give up if we go so deep that print_object will get an error. */ |
1123 | /* See similar code in print_object. */ | |
1124 | if (print_depth >= PRINT_CIRCLE) | |
6b8dfbf7 | 1125 | error ("Apparently circular structure being printed"); |
15479e8b | 1126 | |
c1132671 RS |
1127 | /* Avoid infinite recursion for circular nested structure |
1128 | in the case where Vprint_circle is nil. */ | |
1129 | if (NILP (Vprint_circle)) | |
1130 | { | |
1131 | for (i = 0; i < print_depth; i++) | |
1132 | if (EQ (obj, being_printed[i])) | |
1133 | return; | |
1134 | being_printed[print_depth] = obj; | |
1135 | } | |
1136 | ||
c1132671 RS |
1137 | print_depth++; |
1138 | halftail = obj; | |
0f25ecc6 RS |
1139 | |
1140 | loop: | |
fb103ca9 | 1141 | if (PRINT_CIRCLE_CANDIDATE_P (obj)) |
0f25ecc6 | 1142 | { |
a65b85b5 SM |
1143 | if (!HASH_TABLE_P (Vprint_number_table)) |
1144 | { | |
1145 | Lisp_Object args[2]; | |
1146 | args[0] = QCtest; | |
1147 | args[1] = Qeq; | |
1148 | Vprint_number_table = Fmake_hash_table (2, args); | |
1149 | } | |
1150 | ||
aca2020b KH |
1151 | /* In case print-circle is nil and print-gensym is t, |
1152 | add OBJ to Vprint_number_table only when OBJ is a symbol. */ | |
1153 | if (! NILP (Vprint_circle) || SYMBOLP (obj)) | |
0f25ecc6 | 1154 | { |
a65b85b5 SM |
1155 | Lisp_Object num = Fgethash (obj, Vprint_number_table, Qnil); |
1156 | if (!NILP (num) | |
1157 | /* If Vprint_continuous_numbering is non-nil and OBJ is a gensym, | |
1158 | always print the gensym with a number. This is a special for | |
1159 | the lisp function byte-compile-output-docform. */ | |
1160 | || (!NILP (Vprint_continuous_numbering) | |
1161 | && SYMBOLP (obj) | |
1162 | && !SYMBOL_INTERNED_P (obj))) | |
1163 | { /* OBJ appears more than once. Let's remember that. */ | |
17870c01 | 1164 | if (!INTEGERP (num)) |
aca2020b | 1165 | { |
a65b85b5 SM |
1166 | print_number_index++; |
1167 | /* Negative number indicates it hasn't been printed yet. */ | |
1168 | Fputhash (obj, make_number (- print_number_index), | |
1169 | Vprint_number_table); | |
aca2020b | 1170 | } |
a65b85b5 SM |
1171 | print_depth--; |
1172 | return; | |
0f25ecc6 | 1173 | } |
a65b85b5 SM |
1174 | else |
1175 | /* OBJ is not yet recorded. Let's add to the table. */ | |
1176 | Fputhash (obj, Qt, Vprint_number_table); | |
0f25ecc6 | 1177 | } |
0f25ecc6 | 1178 | |
8e50cc2d | 1179 | switch (XTYPE (obj)) |
0f25ecc6 RS |
1180 | { |
1181 | case Lisp_String: | |
0f25ecc6 | 1182 | /* A string may have text properties, which can be circular. */ |
d5db4077 | 1183 | traverse_intervals_noorder (STRING_INTERVALS (obj), |
8bbfc258 | 1184 | print_preprocess_string, Qnil); |
0f25ecc6 RS |
1185 | break; |
1186 | ||
1187 | case Lisp_Cons: | |
c1132671 RS |
1188 | /* Use HALFTAIL and LOOP_COUNT to detect circular lists, |
1189 | just as in print_object. */ | |
1190 | if (loop_count && EQ (obj, halftail)) | |
1191 | break; | |
0f25ecc6 RS |
1192 | print_preprocess (XCAR (obj)); |
1193 | obj = XCDR (obj); | |
c1132671 RS |
1194 | loop_count++; |
1195 | if (!(loop_count & 1)) | |
1196 | halftail = XCDR (halftail); | |
0f25ecc6 RS |
1197 | goto loop; |
1198 | ||
1199 | case Lisp_Vectorlike: | |
6b61353c KH |
1200 | size = XVECTOR (obj)->size; |
1201 | if (size & PSEUDOVECTOR_FLAG) | |
1202 | size &= PSEUDOVECTOR_SIZE_MASK; | |
0f25ecc6 RS |
1203 | for (i = 0; i < size; i++) |
1204 | print_preprocess (XVECTOR (obj)->contents[i]); | |
3e0de07f SM |
1205 | if (HASH_TABLE_P (obj)) |
1206 | { /* For hash tables, the key_and_value slot is past | |
a65b85b5 SM |
1207 | `size' because it needs to be marked specially in case |
1208 | the table is weak. */ | |
3e0de07f SM |
1209 | struct Lisp_Hash_Table *h = XHASH_TABLE (obj); |
1210 | print_preprocess (h->key_and_value); | |
1211 | } | |
ee5263af GM |
1212 | break; |
1213 | ||
1214 | default: | |
1215 | break; | |
0f25ecc6 RS |
1216 | } |
1217 | } | |
c1132671 | 1218 | print_depth--; |
0f25ecc6 RS |
1219 | } |
1220 | ||
0f25ecc6 | 1221 | static void |
971de7fb | 1222 | print_preprocess_string (INTERVAL interval, Lisp_Object arg) |
0f25ecc6 RS |
1223 | { |
1224 | print_preprocess (interval->plist); | |
1225 | } | |
0f25ecc6 | 1226 | |
971de7fb | 1227 | static void print_check_string_charset_prop (INTERVAL interval, Lisp_Object string); |
71ea13cb KH |
1228 | |
1229 | #define PRINT_STRING_NON_CHARSET_FOUND 1 | |
1230 | #define PRINT_STRING_UNSAFE_CHARSET_FOUND 2 | |
1231 | ||
51e4f4a8 | 1232 | /* Bitwise or of the above macros. */ |
71ea13cb KH |
1233 | static int print_check_string_result; |
1234 | ||
1235 | static void | |
971de7fb | 1236 | print_check_string_charset_prop (INTERVAL interval, Lisp_Object string) |
71ea13cb KH |
1237 | { |
1238 | Lisp_Object val; | |
1239 | ||
1240 | if (NILP (interval->plist) | |
1241 | || (print_check_string_result == (PRINT_STRING_NON_CHARSET_FOUND | |
1242 | | PRINT_STRING_UNSAFE_CHARSET_FOUND))) | |
1243 | return; | |
1244 | for (val = interval->plist; CONSP (val) && ! EQ (XCAR (val), Qcharset); | |
1245 | val = XCDR (XCDR (val))); | |
1246 | if (! CONSP (val)) | |
1247 | { | |
1248 | print_check_string_result |= PRINT_STRING_NON_CHARSET_FOUND; | |
1249 | return; | |
1250 | } | |
1251 | if (! (print_check_string_result & PRINT_STRING_NON_CHARSET_FOUND)) | |
1252 | { | |
1253 | if (! EQ (val, interval->plist) | |
1254 | || CONSP (XCDR (XCDR (val)))) | |
1255 | print_check_string_result |= PRINT_STRING_NON_CHARSET_FOUND; | |
1256 | } | |
1257 | if (NILP (Vprint_charset_text_property) | |
1258 | || ! (print_check_string_result & PRINT_STRING_UNSAFE_CHARSET_FOUND)) | |
1259 | { | |
1260 | int i, c; | |
db063399 LMI |
1261 | EMACS_INT charpos = interval->position; |
1262 | EMACS_INT bytepos = string_char_to_byte (string, charpos); | |
71ea13cb KH |
1263 | Lisp_Object charset; |
1264 | ||
1265 | charset = XCAR (XCDR (val)); | |
1266 | for (i = 0; i < LENGTH (interval); i++) | |
1267 | { | |
1268 | FETCH_STRING_CHAR_ADVANCE (c, string, charpos, bytepos); | |
c80bcdbc KH |
1269 | if (! ASCII_CHAR_P (c) |
1270 | && ! EQ (CHARSET_NAME (CHAR_CHARSET (c)), charset)) | |
71ea13cb KH |
1271 | { |
1272 | print_check_string_result |= PRINT_STRING_UNSAFE_CHARSET_FOUND; | |
1273 | break; | |
1274 | } | |
1275 | } | |
1276 | } | |
1277 | } | |
1278 | ||
1279 | /* The value is (charset . nil). */ | |
1280 | static Lisp_Object print_prune_charset_plist; | |
1281 | ||
1282 | static Lisp_Object | |
971de7fb | 1283 | print_prune_string_charset (Lisp_Object string) |
71ea13cb KH |
1284 | { |
1285 | print_check_string_result = 0; | |
1286 | traverse_intervals (STRING_INTERVALS (string), 0, | |
1287 | print_check_string_charset_prop, string); | |
1288 | if (! (print_check_string_result & PRINT_STRING_UNSAFE_CHARSET_FOUND)) | |
1289 | { | |
1290 | string = Fcopy_sequence (string); | |
1291 | if (print_check_string_result & PRINT_STRING_NON_CHARSET_FOUND) | |
1292 | { | |
1293 | if (NILP (print_prune_charset_plist)) | |
1294 | print_prune_charset_plist = Fcons (Qcharset, Qnil); | |
eabe04c0 KH |
1295 | Fremove_text_properties (make_number (0), |
1296 | make_number (SCHARS (string)), | |
71ea13cb KH |
1297 | print_prune_charset_plist, string); |
1298 | } | |
1299 | else | |
eabe04c0 KH |
1300 | Fset_text_properties (make_number (0), make_number (SCHARS (string)), |
1301 | Qnil, string); | |
71ea13cb KH |
1302 | } |
1303 | return string; | |
1304 | } | |
1305 | ||
0f25ecc6 | 1306 | static void |
971de7fb | 1307 | print_object (Lisp_Object obj, register Lisp_Object printcharfun, int escapeflag) |
0f25ecc6 | 1308 | { |
28b8f740 | 1309 | char buf[40]; |
0f25ecc6 RS |
1310 | |
1311 | QUIT; | |
1312 | ||
76afdf7e | 1313 | /* See similar code in print_preprocess. */ |
51dc79f8 | 1314 | if (print_depth >= PRINT_CIRCLE) |
76afdf7e CY |
1315 | error ("Apparently circular structure being printed"); |
1316 | ||
0f25ecc6 | 1317 | /* Detect circularities and truncate them. */ |
fb103ca9 | 1318 | if (PRINT_CIRCLE_CANDIDATE_P (obj)) |
0f25ecc6 RS |
1319 | { |
1320 | if (NILP (Vprint_circle) && NILP (Vprint_gensym)) | |
1321 | { | |
1322 | /* Simple but incomplete way. */ | |
1323 | int i; | |
1324 | for (i = 0; i < print_depth; i++) | |
1325 | if (EQ (obj, being_printed[i])) | |
1326 | { | |
1327 | sprintf (buf, "#%d", i); | |
1db5b1ad | 1328 | strout (buf, -1, -1, printcharfun); |
0f25ecc6 RS |
1329 | return; |
1330 | } | |
1331 | being_printed[print_depth] = obj; | |
1332 | } | |
1333 | else | |
1334 | { | |
1335 | /* With the print-circle feature. */ | |
a65b85b5 SM |
1336 | Lisp_Object num = Fgethash (obj, Vprint_number_table, Qnil); |
1337 | if (INTEGERP (num)) | |
1338 | { | |
1339 | int n = XINT (num); | |
1340 | if (n < 0) | |
1341 | { /* Add a prefix #n= if OBJ has not yet been printed; | |
1342 | that is, its status field is nil. */ | |
1343 | sprintf (buf, "#%d=", -n); | |
1db5b1ad | 1344 | strout (buf, -1, -1, printcharfun); |
a65b85b5 SM |
1345 | /* OBJ is going to be printed. Remember that fact. */ |
1346 | Fputhash (obj, make_number (- n), Vprint_number_table); | |
1347 | } | |
1348 | else | |
1349 | { | |
1350 | /* Just print #n# if OBJ has already been printed. */ | |
1351 | sprintf (buf, "#%d#", n); | |
1db5b1ad | 1352 | strout (buf, -1, -1, printcharfun); |
a65b85b5 SM |
1353 | return; |
1354 | } | |
1355 | } | |
0f25ecc6 | 1356 | } |
ec838c39 | 1357 | } |
ec838c39 | 1358 | |
38010d50 JB |
1359 | print_depth++; |
1360 | ||
8e50cc2d | 1361 | switch (XTYPE (obj)) |
38010d50 | 1362 | { |
2de9f71c | 1363 | case_Lisp_Int: |
b8180922 | 1364 | if (sizeof (int) == sizeof (EMACS_INT)) |
6af1696d | 1365 | sprintf (buf, "%d", (int) XINT (obj)); |
b8180922 | 1366 | else if (sizeof (long) == sizeof (EMACS_INT)) |
63fbf4ff | 1367 | sprintf (buf, "%ld", (long) XINT (obj)); |
b8180922 RS |
1368 | else |
1369 | abort (); | |
1db5b1ad | 1370 | strout (buf, -1, -1, printcharfun); |
ca0569ad RS |
1371 | break; |
1372 | ||
ca0569ad RS |
1373 | case Lisp_Float: |
1374 | { | |
6e8e6bf2 | 1375 | char pigbuf[FLOAT_TO_STRING_BUFSIZE]; |
38010d50 | 1376 | |
94b342ce | 1377 | float_to_string (pigbuf, XFLOAT_DATA (obj)); |
1db5b1ad | 1378 | strout (pigbuf, -1, -1, printcharfun); |
ca0569ad RS |
1379 | } |
1380 | break; | |
ca0569ad RS |
1381 | |
1382 | case Lisp_String: | |
38010d50 JB |
1383 | if (!escapeflag) |
1384 | print_string (obj, printcharfun); | |
1385 | else | |
1386 | { | |
47553fa8 | 1387 | register EMACS_INT i_byte; |
38010d50 | 1388 | struct gcpro gcpro1; |
872a36d2 | 1389 | unsigned char *str; |
db063399 | 1390 | EMACS_INT size_byte; |
453fa987 RS |
1391 | /* 1 means we must ensure that the next character we output |
1392 | cannot be taken as part of a hex character escape. */ | |
1393 | int need_nonhex = 0; | |
db300f59 | 1394 | int multibyte = STRING_MULTIBYTE (obj); |
38010d50 | 1395 | |
7651e1f5 RS |
1396 | GCPRO1 (obj); |
1397 | ||
71ea13cb KH |
1398 | if (! EQ (Vprint_charset_text_property, Qt)) |
1399 | obj = print_prune_string_charset (obj); | |
1400 | ||
d5db4077 | 1401 | if (!NULL_INTERVAL_P (STRING_INTERVALS (obj))) |
7651e1f5 RS |
1402 | { |
1403 | PRINTCHAR ('#'); | |
1404 | PRINTCHAR ('('); | |
1405 | } | |
38010d50 JB |
1406 | |
1407 | PRINTCHAR ('\"'); | |
d5db4077 KR |
1408 | str = SDATA (obj); |
1409 | size_byte = SBYTES (obj); | |
dc2a0b79 | 1410 | |
47553fa8 | 1411 | for (i_byte = 0; i_byte < size_byte;) |
38010d50 | 1412 | { |
6ddd6eee RS |
1413 | /* Here, we must convert each multi-byte form to the |
1414 | corresponding character code before handing it to PRINTCHAR. */ | |
1415 | int len; | |
dc2a0b79 RS |
1416 | int c; |
1417 | ||
db300f59 | 1418 | if (multibyte) |
872a36d2 | 1419 | { |
62a6e103 | 1420 | c = STRING_CHAR_AND_LENGTH (str + i_byte, len); |
8b4b4467 | 1421 | i_byte += len; |
872a36d2 | 1422 | } |
dc2a0b79 | 1423 | else |
872a36d2 | 1424 | c = str[i_byte++]; |
dc2a0b79 | 1425 | |
38010d50 | 1426 | QUIT; |
6ddd6eee | 1427 | |
38010d50 JB |
1428 | if (c == '\n' && print_escape_newlines) |
1429 | { | |
1430 | PRINTCHAR ('\\'); | |
1431 | PRINTCHAR ('n'); | |
1432 | } | |
c6f7982f RM |
1433 | else if (c == '\f' && print_escape_newlines) |
1434 | { | |
1435 | PRINTCHAR ('\\'); | |
1436 | PRINTCHAR ('f'); | |
1437 | } | |
ae7367d3 | 1438 | else if (multibyte |
42a5b22f | 1439 | && (CHAR_BYTE8_P (c) |
73af357a | 1440 | || (! ASCII_CHAR_P (c) && print_escape_multibyte))) |
dc2a0b79 RS |
1441 | { |
1442 | /* When multibyte is disabled, | |
ae7367d3 RS |
1443 | print multibyte string chars using hex escapes. |
1444 | For a char code that could be in a unibyte string, | |
1445 | when found in a multibyte string, always use a hex escape | |
1446 | so it reads back as multibyte. */ | |
09125ef8 | 1447 | char outbuf[50]; |
8b4b4467 KH |
1448 | |
1449 | if (CHAR_BYTE8_P (c)) | |
1450 | sprintf (outbuf, "\\%03o", CHAR_TO_BYTE8 (c)); | |
1451 | else | |
8f924df7 KH |
1452 | { |
1453 | sprintf (outbuf, "\\x%04x", c); | |
1454 | need_nonhex = 1; | |
1455 | } | |
1db5b1ad | 1456 | strout (outbuf, -1, -1, printcharfun); |
dc2a0b79 | 1457 | } |
db300f59 RS |
1458 | else if (! multibyte |
1459 | && SINGLE_BYTE_CHAR_P (c) && ! ASCII_BYTE_P (c) | |
835d0be6 | 1460 | && print_escape_nonascii) |
974a6ff5 | 1461 | { |
835d0be6 RS |
1462 | /* When printing in a multibyte buffer |
1463 | or when explicitly requested, | |
974a6ff5 KH |
1464 | print single-byte non-ASCII string chars |
1465 | using octal escapes. */ | |
09125ef8 | 1466 | char outbuf[5]; |
974a6ff5 | 1467 | sprintf (outbuf, "\\%03o", c); |
1db5b1ad | 1468 | strout (outbuf, -1, -1, printcharfun); |
974a6ff5 | 1469 | } |
38010d50 JB |
1470 | else |
1471 | { | |
453fa987 RS |
1472 | /* If we just had a hex escape, and this character |
1473 | could be taken as part of it, | |
1474 | output `\ ' to prevent that. */ | |
1b62edd6 KH |
1475 | if (need_nonhex) |
1476 | { | |
1477 | need_nonhex = 0; | |
1478 | if ((c >= 'a' && c <= 'f') | |
453fa987 | 1479 | || (c >= 'A' && c <= 'F') |
1b62edd6 | 1480 | || (c >= '0' && c <= '9')) |
1db5b1ad | 1481 | strout ("\\ ", -1, -1, printcharfun); |
1b62edd6 | 1482 | } |
453fa987 | 1483 | |
38010d50 JB |
1484 | if (c == '\"' || c == '\\') |
1485 | PRINTCHAR ('\\'); | |
1486 | PRINTCHAR (c); | |
1487 | } | |
1488 | } | |
1489 | PRINTCHAR ('\"'); | |
7651e1f5 | 1490 | |
d5db4077 | 1491 | if (!NULL_INTERVAL_P (STRING_INTERVALS (obj))) |
7651e1f5 | 1492 | { |
d5db4077 | 1493 | traverse_intervals (STRING_INTERVALS (obj), |
8bbfc258 | 1494 | 0, print_interval, printcharfun); |
7651e1f5 RS |
1495 | PRINTCHAR (')'); |
1496 | } | |
7651e1f5 | 1497 | |
38010d50 JB |
1498 | UNGCPRO; |
1499 | } | |
ca0569ad | 1500 | break; |
38010d50 | 1501 | |
ca0569ad RS |
1502 | case Lisp_Symbol: |
1503 | { | |
1504 | register int confusing; | |
d5db4077 KR |
1505 | register unsigned char *p = SDATA (SYMBOL_NAME (obj)); |
1506 | register unsigned char *end = p + SBYTES (SYMBOL_NAME (obj)); | |
2190a05e | 1507 | register int c; |
db063399 LMI |
1508 | int i, i_byte; |
1509 | EMACS_INT size_byte; | |
dc2a0b79 RS |
1510 | Lisp_Object name; |
1511 | ||
76d0b3ae | 1512 | name = SYMBOL_NAME (obj); |
ca0569ad RS |
1513 | |
1514 | if (p != end && (*p == '-' || *p == '+')) p++; | |
1515 | if (p == end) | |
1516 | confusing = 0; | |
d27497e3 RS |
1517 | /* If symbol name begins with a digit, and ends with a digit, |
1518 | and contains nothing but digits and `e', it could be treated | |
1519 | as a number. So set CONFUSING. | |
1520 | ||
1521 | Symbols that contain periods could also be taken as numbers, | |
1522 | but periods are always escaped, so we don't have to worry | |
1523 | about them here. */ | |
1524 | else if (*p >= '0' && *p <= '9' | |
1525 | && end[-1] >= '0' && end[-1] <= '9') | |
ca0569ad | 1526 | { |
e837058b RS |
1527 | while (p != end && ((*p >= '0' && *p <= '9') |
1528 | /* Needed for \2e10. */ | |
01a8d3fa | 1529 | || *p == 'e' || *p == 'E')) |
ca0569ad RS |
1530 | p++; |
1531 | confusing = (end == p); | |
1532 | } | |
d27497e3 RS |
1533 | else |
1534 | confusing = 0; | |
ca0569ad | 1535 | |
bf9f2aab | 1536 | if (! NILP (Vprint_gensym) && !SYMBOL_INTERNED_P (obj)) |
081e0581 | 1537 | { |
081e0581 EN |
1538 | PRINTCHAR ('#'); |
1539 | PRINTCHAR (':'); | |
1540 | } | |
1541 | ||
d5db4077 | 1542 | size_byte = SBYTES (name); |
dc2a0b79 RS |
1543 | |
1544 | for (i = 0, i_byte = 0; i_byte < size_byte;) | |
ca0569ad | 1545 | { |
6ddd6eee RS |
1546 | /* Here, we must convert each multi-byte form to the |
1547 | corresponding character code before handing it to PRINTCHAR. */ | |
eba90784 | 1548 | FETCH_STRING_CHAR_ADVANCE (c, name, i, i_byte); |
ca0569ad | 1549 | QUIT; |
09eddb56 | 1550 | |
ca0569ad RS |
1551 | if (escapeflag) |
1552 | { | |
09eddb56 RS |
1553 | if (c == '\"' || c == '\\' || c == '\'' |
1554 | || c == ';' || c == '#' || c == '(' || c == ')' | |
1555 | || c == ',' || c =='.' || c == '`' | |
1556 | || c == '[' || c == ']' || c == '?' || c <= 040 | |
1557 | || confusing) | |
ca0569ad RS |
1558 | PRINTCHAR ('\\'), confusing = 0; |
1559 | } | |
1560 | PRINTCHAR (c); | |
1561 | } | |
1562 | } | |
1563 | break; | |
1564 | ||
1565 | case Lisp_Cons: | |
38010d50 | 1566 | /* If deeper than spec'd depth, print placeholder. */ |
d4ae1f7e | 1567 | if (INTEGERP (Vprint_level) |
38010d50 | 1568 | && print_depth > XINT (Vprint_level)) |
1db5b1ad | 1569 | strout ("...", -1, -1, printcharfun); |
2f100b5c EN |
1570 | else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj))) |
1571 | && (EQ (XCAR (obj), Qquote))) | |
1572 | { | |
1573 | PRINTCHAR ('\''); | |
0f25ecc6 | 1574 | print_object (XCAR (XCDR (obj)), printcharfun, escapeflag); |
2f100b5c EN |
1575 | } |
1576 | else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj))) | |
1577 | && (EQ (XCAR (obj), Qfunction))) | |
1578 | { | |
1579 | PRINTCHAR ('#'); | |
1580 | PRINTCHAR ('\''); | |
0f25ecc6 | 1581 | print_object (XCAR (XCDR (obj)), printcharfun, escapeflag); |
2f100b5c EN |
1582 | } |
1583 | else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj))) | |
a22dec27 SM |
1584 | && ((EQ (XCAR (obj), Qbackquote)))) |
1585 | { | |
1586 | print_object (XCAR (obj), printcharfun, 0); | |
1587 | new_backquote_output++; | |
1588 | print_object (XCAR (XCDR (obj)), printcharfun, escapeflag); | |
1589 | new_backquote_output--; | |
1590 | } | |
1591 | else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj))) | |
1592 | && new_backquote_output | |
2f100b5c EN |
1593 | && ((EQ (XCAR (obj), Qbackquote) |
1594 | || EQ (XCAR (obj), Qcomma) | |
1595 | || EQ (XCAR (obj), Qcomma_at) | |
1596 | || EQ (XCAR (obj), Qcomma_dot)))) | |
1597 | { | |
0f25ecc6 | 1598 | print_object (XCAR (obj), printcharfun, 0); |
a22dec27 | 1599 | new_backquote_output--; |
0f25ecc6 | 1600 | print_object (XCAR (XCDR (obj)), printcharfun, escapeflag); |
a22dec27 | 1601 | new_backquote_output++; |
2f100b5c | 1602 | } |
e0f93814 | 1603 | else |
38010d50 | 1604 | { |
e0f93814 | 1605 | PRINTCHAR ('('); |
177c0ea7 | 1606 | |
38010d50 | 1607 | { |
db063399 LMI |
1608 | EMACS_INT print_length; |
1609 | int i; | |
1eab22b5 | 1610 | Lisp_Object halftail = obj; |
e0f93814 | 1611 | |
9ab8560d | 1612 | /* Negative values of print-length are invalid in CL. |
42ac1ed4 GM |
1613 | Treat them like nil, as CMUCL does. */ |
1614 | if (NATNUMP (Vprint_length)) | |
1615 | print_length = XFASTINT (Vprint_length); | |
1616 | else | |
1617 | print_length = 0; | |
1618 | ||
1619 | i = 0; | |
e0f93814 | 1620 | while (CONSP (obj)) |
38010d50 | 1621 | { |
1eab22b5 | 1622 | /* Detect circular list. */ |
0f25ecc6 | 1623 | if (NILP (Vprint_circle)) |
1eab22b5 | 1624 | { |
0f25ecc6 RS |
1625 | /* Simple but imcomplete way. */ |
1626 | if (i != 0 && EQ (obj, halftail)) | |
1627 | { | |
1628 | sprintf (buf, " . #%d", i / 2); | |
1db5b1ad | 1629 | strout (buf, -1, -1, printcharfun); |
0f25ecc6 RS |
1630 | goto end_of_list; |
1631 | } | |
1632 | } | |
1633 | else | |
1634 | { | |
1635 | /* With the print-circle feature. */ | |
1636 | if (i != 0) | |
1637 | { | |
a65b85b5 SM |
1638 | Lisp_Object num = Fgethash (obj, Vprint_number_table, Qnil); |
1639 | if (INTEGERP (num)) | |
36de6a04 | 1640 | { |
1db5b1ad | 1641 | strout (" . ", 3, 3, printcharfun); |
36de6a04 AS |
1642 | print_object (obj, printcharfun, escapeflag); |
1643 | goto end_of_list; | |
1644 | } | |
0f25ecc6 | 1645 | } |
1eab22b5 | 1646 | } |
177c0ea7 | 1647 | |
e0f93814 KH |
1648 | if (i++) |
1649 | PRINTCHAR (' '); | |
177c0ea7 | 1650 | |
f4fe72d5 | 1651 | if (print_length && i > print_length) |
e0f93814 | 1652 | { |
1db5b1ad | 1653 | strout ("...", 3, 3, printcharfun); |
0f25ecc6 | 1654 | goto end_of_list; |
e0f93814 | 1655 | } |
177c0ea7 | 1656 | |
0f25ecc6 | 1657 | print_object (XCAR (obj), printcharfun, escapeflag); |
177c0ea7 | 1658 | |
2f100b5c | 1659 | obj = XCDR (obj); |
1eab22b5 RS |
1660 | if (!(i & 1)) |
1661 | halftail = XCDR (halftail); | |
38010d50 | 1662 | } |
38010d50 | 1663 | } |
42ac1ed4 GM |
1664 | |
1665 | /* OBJ non-nil here means it's the end of a dotted list. */ | |
2f100b5c | 1666 | if (!NILP (obj)) |
e0f93814 | 1667 | { |
1db5b1ad | 1668 | strout (" . ", 3, 3, printcharfun); |
0f25ecc6 | 1669 | print_object (obj, printcharfun, escapeflag); |
e0f93814 | 1670 | } |
177c0ea7 | 1671 | |
0f25ecc6 | 1672 | end_of_list: |
e0f93814 | 1673 | PRINTCHAR (')'); |
38010d50 | 1674 | } |
ca0569ad RS |
1675 | break; |
1676 | ||
1677 | case Lisp_Vectorlike: | |
1678 | if (PROCESSP (obj)) | |
1679 | { | |
1680 | if (escapeflag) | |
1681 | { | |
1db5b1ad | 1682 | strout ("#<process ", -1, -1, printcharfun); |
ca0569ad RS |
1683 | print_string (XPROCESS (obj)->name, printcharfun); |
1684 | PRINTCHAR ('>'); | |
1685 | } | |
1686 | else | |
1687 | print_string (XPROCESS (obj)->name, printcharfun); | |
1688 | } | |
ed2c35ef RS |
1689 | else if (BOOL_VECTOR_P (obj)) |
1690 | { | |
1691 | register int i; | |
1692 | register unsigned char c; | |
1693 | struct gcpro gcpro1; | |
db063399 | 1694 | EMACS_INT size_in_chars |
4b5af5e4 AS |
1695 | = ((XBOOL_VECTOR (obj)->size + BOOL_VECTOR_BITS_PER_CHAR - 1) |
1696 | / BOOL_VECTOR_BITS_PER_CHAR); | |
ed2c35ef RS |
1697 | |
1698 | GCPRO1 (obj); | |
1699 | ||
1700 | PRINTCHAR ('#'); | |
1701 | PRINTCHAR ('&'); | |
474f84d9 | 1702 | sprintf (buf, "%ld", (long) XBOOL_VECTOR (obj)->size); |
1db5b1ad | 1703 | strout (buf, -1, -1, printcharfun); |
ed2c35ef | 1704 | PRINTCHAR ('\"'); |
a40384bc | 1705 | |
42ac1ed4 | 1706 | /* Don't print more characters than the specified maximum. |
9ab8560d | 1707 | Negative values of print-length are invalid. Treat them |
42ac1ed4 GM |
1708 | like a print-length of nil. */ |
1709 | if (NATNUMP (Vprint_length) | |
1710 | && XFASTINT (Vprint_length) < size_in_chars) | |
1711 | size_in_chars = XFASTINT (Vprint_length); | |
a40384bc | 1712 | |
ed2c35ef RS |
1713 | for (i = 0; i < size_in_chars; i++) |
1714 | { | |
1715 | QUIT; | |
1716 | c = XBOOL_VECTOR (obj)->data[i]; | |
f10fdbfd | 1717 | if (c == '\n' && print_escape_newlines) |
ed2c35ef RS |
1718 | { |
1719 | PRINTCHAR ('\\'); | |
1720 | PRINTCHAR ('n'); | |
1721 | } | |
1722 | else if (c == '\f' && print_escape_newlines) | |
1723 | { | |
1724 | PRINTCHAR ('\\'); | |
1725 | PRINTCHAR ('f'); | |
1726 | } | |
4b5af5e4 AS |
1727 | else if (c > '\177') |
1728 | { | |
1729 | /* Use octal escapes to avoid encoding issues. */ | |
1730 | PRINTCHAR ('\\'); | |
1731 | PRINTCHAR ('0' + ((c >> 6) & 3)); | |
1732 | PRINTCHAR ('0' + ((c >> 3) & 7)); | |
1733 | PRINTCHAR ('0' + (c & 7)); | |
1734 | } | |
ed2c35ef RS |
1735 | else |
1736 | { | |
1737 | if (c == '\"' || c == '\\') | |
1738 | PRINTCHAR ('\\'); | |
1739 | PRINTCHAR (c); | |
1740 | } | |
1741 | } | |
1742 | PRINTCHAR ('\"'); | |
1743 | ||
1744 | UNGCPRO; | |
1745 | } | |
ca0569ad RS |
1746 | else if (SUBRP (obj)) |
1747 | { | |
1db5b1ad JB |
1748 | strout ("#<subr ", -1, -1, printcharfun); |
1749 | strout (XSUBR (obj)->symbol_name, -1, -1, printcharfun); | |
ca0569ad RS |
1750 | PRINTCHAR ('>'); |
1751 | } | |
ca0569ad RS |
1752 | else if (WINDOWP (obj)) |
1753 | { | |
1db5b1ad | 1754 | strout ("#<window ", -1, -1, printcharfun); |
474f84d9 | 1755 | sprintf (buf, "%ld", (long) XFASTINT (XWINDOW (obj)->sequence_number)); |
1db5b1ad | 1756 | strout (buf, -1, -1, printcharfun); |
ca0569ad RS |
1757 | if (!NILP (XWINDOW (obj)->buffer)) |
1758 | { | |
1db5b1ad | 1759 | strout (" on ", -1, -1, printcharfun); |
4b4deea2 | 1760 | print_string (BVAR (XBUFFER (XWINDOW (obj)->buffer), name), printcharfun); |
ca0569ad RS |
1761 | } |
1762 | PRINTCHAR ('>'); | |
1763 | } | |
f76c8b1e SM |
1764 | else if (TERMINALP (obj)) |
1765 | { | |
1766 | struct terminal *t = XTERMINAL (obj); | |
1db5b1ad | 1767 | strout ("#<terminal ", -1, -1, printcharfun); |
f76c8b1e | 1768 | sprintf (buf, "%d", t->id); |
1db5b1ad | 1769 | strout (buf, -1, -1, printcharfun); |
f76c8b1e SM |
1770 | if (t->name) |
1771 | { | |
1db5b1ad JB |
1772 | strout (" on ", -1, -1, printcharfun); |
1773 | strout (t->name, -1, -1, printcharfun); | |
f76c8b1e SM |
1774 | } |
1775 | PRINTCHAR ('>'); | |
1776 | } | |
7eb03302 GM |
1777 | else if (HASH_TABLE_P (obj)) |
1778 | { | |
1779 | struct Lisp_Hash_Table *h = XHASH_TABLE (obj); | |
db063399 LMI |
1780 | int i; |
1781 | EMACS_INT real_size, size; | |
f19a0f5b | 1782 | #if 0 |
1db5b1ad | 1783 | strout ("#<hash-table", -1, -1, printcharfun); |
7eb03302 GM |
1784 | if (SYMBOLP (h->test)) |
1785 | { | |
1786 | PRINTCHAR (' '); | |
1787 | PRINTCHAR ('\''); | |
1db5b1ad | 1788 | strout (SDATA (SYMBOL_NAME (h->test)), -1, -1, printcharfun); |
7eb03302 | 1789 | PRINTCHAR (' '); |
1db5b1ad | 1790 | strout (SDATA (SYMBOL_NAME (h->weak)), -1, -1, printcharfun); |
7eb03302 | 1791 | PRINTCHAR (' '); |
878f97ff | 1792 | sprintf (buf, "%ld/%ld", (long) h->count, |
474f84d9 | 1793 | (long) XVECTOR (h->next)->size); |
1db5b1ad | 1794 | strout (buf, -1, -1, printcharfun); |
7eb03302 GM |
1795 | } |
1796 | sprintf (buf, " 0x%lx", (unsigned long) h); | |
1db5b1ad | 1797 | strout (buf, -1, -1, printcharfun); |
7eb03302 | 1798 | PRINTCHAR ('>'); |
f19a0f5b TZ |
1799 | #endif |
1800 | /* Implement a readable output, e.g.: | |
1801 | #s(hash-table size 2 test equal data (k1 v1 k2 v2)) */ | |
1802 | /* Always print the size. */ | |
1803 | sprintf (buf, "#s(hash-table size %ld", | |
1804 | (long) XVECTOR (h->next)->size); | |
1db5b1ad | 1805 | strout (buf, -1, -1, printcharfun); |
f19a0f5b TZ |
1806 | |
1807 | if (!NILP (h->test)) | |
1808 | { | |
1db5b1ad | 1809 | strout (" test ", -1, -1, printcharfun); |
617a0e83 | 1810 | print_object (h->test, printcharfun, escapeflag); |
f19a0f5b TZ |
1811 | } |
1812 | ||
1813 | if (!NILP (h->weak)) | |
1814 | { | |
1db5b1ad | 1815 | strout (" weakness ", -1, -1, printcharfun); |
617a0e83 | 1816 | print_object (h->weak, printcharfun, escapeflag); |
f19a0f5b TZ |
1817 | } |
1818 | ||
1819 | if (!NILP (h->rehash_size)) | |
1820 | { | |
1db5b1ad | 1821 | strout (" rehash-size ", -1, -1, printcharfun); |
617a0e83 | 1822 | print_object (h->rehash_size, printcharfun, escapeflag); |
f19a0f5b TZ |
1823 | } |
1824 | ||
1825 | if (!NILP (h->rehash_threshold)) | |
1826 | { | |
1db5b1ad | 1827 | strout (" rehash-threshold ", -1, -1, printcharfun); |
617a0e83 | 1828 | print_object (h->rehash_threshold, printcharfun, escapeflag); |
f19a0f5b TZ |
1829 | } |
1830 | ||
1db5b1ad | 1831 | strout (" data ", -1, -1, printcharfun); |
f19a0f5b TZ |
1832 | |
1833 | /* Print the data here as a plist. */ | |
b0ca0f33 DN |
1834 | real_size = HASH_TABLE_SIZE (h); |
1835 | size = real_size; | |
f19a0f5b TZ |
1836 | |
1837 | /* Don't print more elements than the specified maximum. */ | |
1838 | if (NATNUMP (Vprint_length) | |
1839 | && XFASTINT (Vprint_length) < size) | |
1840 | size = XFASTINT (Vprint_length); | |
42a5b22f | 1841 | |
f19a0f5b TZ |
1842 | PRINTCHAR ('('); |
1843 | for (i = 0; i < size; i++) | |
1844 | if (!NILP (HASH_HASH (h, i))) | |
1845 | { | |
1846 | if (i) PRINTCHAR (' '); | |
617a0e83 | 1847 | print_object (HASH_KEY (h, i), printcharfun, escapeflag); |
f19a0f5b | 1848 | PRINTCHAR (' '); |
617a0e83 | 1849 | print_object (HASH_VALUE (h, i), printcharfun, escapeflag); |
f19a0f5b TZ |
1850 | } |
1851 | ||
1852 | if (size < real_size) | |
1db5b1ad | 1853 | strout (" ...", 4, 4, printcharfun); |
f19a0f5b TZ |
1854 | |
1855 | PRINTCHAR (')'); | |
1856 | PRINTCHAR (')'); | |
1857 | ||
7eb03302 | 1858 | } |
908b0ae5 RS |
1859 | else if (BUFFERP (obj)) |
1860 | { | |
4b4deea2 | 1861 | if (NILP (BVAR (XBUFFER (obj), name))) |
1db5b1ad | 1862 | strout ("#<killed buffer>", -1, -1, printcharfun); |
908b0ae5 RS |
1863 | else if (escapeflag) |
1864 | { | |
1db5b1ad | 1865 | strout ("#<buffer ", -1, -1, printcharfun); |
4b4deea2 | 1866 | print_string (BVAR (XBUFFER (obj), name), printcharfun); |
908b0ae5 RS |
1867 | PRINTCHAR ('>'); |
1868 | } | |
1869 | else | |
4b4deea2 | 1870 | print_string (BVAR (XBUFFER (obj), name), printcharfun); |
908b0ae5 | 1871 | } |
ca0569ad RS |
1872 | else if (WINDOW_CONFIGURATIONP (obj)) |
1873 | { | |
1db5b1ad | 1874 | strout ("#<window-configuration>", -1, -1, printcharfun); |
ca0569ad | 1875 | } |
ca0569ad RS |
1876 | else if (FRAMEP (obj)) |
1877 | { | |
1878 | strout ((FRAME_LIVE_P (XFRAME (obj)) | |
1879 | ? "#<frame " : "#<dead frame "), | |
1db5b1ad | 1880 | -1, -1, printcharfun); |
ca0569ad | 1881 | print_string (XFRAME (obj)->name, printcharfun); |
aab3aa14 | 1882 | sprintf (buf, " 0x%lx", (unsigned long) (XFRAME (obj))); |
1db5b1ad | 1883 | strout (buf, -1, -1, printcharfun); |
ca0569ad RS |
1884 | PRINTCHAR ('>'); |
1885 | } | |
2a7b7982 KH |
1886 | else if (FONTP (obj)) |
1887 | { | |
1888 | EMACS_INT i; | |
1889 | ||
1890 | if (! FONT_OBJECT_P (obj)) | |
1891 | { | |
1892 | if (FONT_SPEC_P (obj)) | |
1db5b1ad | 1893 | strout ("#<font-spec", -1, -1, printcharfun); |
2a7b7982 | 1894 | else |
1db5b1ad | 1895 | strout ("#<font-entity", -1, -1, printcharfun); |
2a7b7982 KH |
1896 | for (i = 0; i < FONT_SPEC_MAX; i++) |
1897 | { | |
1898 | PRINTCHAR (' '); | |
1899 | if (i < FONT_WEIGHT_INDEX || i > FONT_WIDTH_INDEX) | |
1900 | print_object (AREF (obj, i), printcharfun, escapeflag); | |
1901 | else | |
1902 | print_object (font_style_symbolic (obj, i, 0), | |
1903 | printcharfun, escapeflag); | |
1904 | } | |
1905 | } | |
1906 | else | |
1907 | { | |
1db5b1ad | 1908 | strout ("#<font-object ", -1, -1, printcharfun); |
2a7b7982 KH |
1909 | print_object (AREF (obj, FONT_NAME_INDEX), printcharfun, |
1910 | escapeflag); | |
1911 | } | |
1912 | PRINTCHAR ('>'); | |
1913 | } | |
ca0569ad RS |
1914 | else |
1915 | { | |
6b61353c | 1916 | EMACS_INT size = XVECTOR (obj)->size; |
ca0569ad RS |
1917 | if (COMPILEDP (obj)) |
1918 | { | |
1919 | PRINTCHAR ('#'); | |
1920 | size &= PSEUDOVECTOR_SIZE_MASK; | |
1921 | } | |
8b4b4467 | 1922 | if (CHAR_TABLE_P (obj) || SUB_CHAR_TABLE_P (obj)) |
ed2c35ef RS |
1923 | { |
1924 | /* We print a char-table as if it were a vector, | |
1925 | lumping the parent and default slots in with the | |
1926 | character slots. But we add #^ as a prefix. */ | |
223509a3 KH |
1927 | |
1928 | /* Make each lowest sub_char_table start a new line. | |
1929 | Otherwise we'll make a line extremely long, which | |
1930 | results in slow redisplay. */ | |
1931 | if (SUB_CHAR_TABLE_P (obj) | |
1932 | && XINT (XSUB_CHAR_TABLE (obj)->depth) == 3) | |
1933 | PRINTCHAR ('\n'); | |
ed2c35ef RS |
1934 | PRINTCHAR ('#'); |
1935 | PRINTCHAR ('^'); | |
3701b5de KH |
1936 | if (SUB_CHAR_TABLE_P (obj)) |
1937 | PRINTCHAR ('^'); | |
ed2c35ef RS |
1938 | size &= PSEUDOVECTOR_SIZE_MASK; |
1939 | } | |
00d76abc KH |
1940 | if (size & PSEUDOVECTOR_FLAG) |
1941 | goto badtype; | |
ca0569ad RS |
1942 | |
1943 | PRINTCHAR ('['); | |
38010d50 | 1944 | { |
ca0569ad RS |
1945 | register int i; |
1946 | register Lisp_Object tem; | |
db063399 | 1947 | EMACS_INT real_size = size; |
a40384bc RS |
1948 | |
1949 | /* Don't print more elements than the specified maximum. */ | |
42ac1ed4 GM |
1950 | if (NATNUMP (Vprint_length) |
1951 | && XFASTINT (Vprint_length) < size) | |
1952 | size = XFASTINT (Vprint_length); | |
a40384bc | 1953 | |
ca0569ad RS |
1954 | for (i = 0; i < size; i++) |
1955 | { | |
1956 | if (i) PRINTCHAR (' '); | |
1957 | tem = XVECTOR (obj)->contents[i]; | |
0f25ecc6 | 1958 | print_object (tem, printcharfun, escapeflag); |
ca0569ad | 1959 | } |
d6ac884e | 1960 | if (size < real_size) |
1db5b1ad | 1961 | strout (" ...", 4, 4, printcharfun); |
38010d50 | 1962 | } |
ca0569ad RS |
1963 | PRINTCHAR (']'); |
1964 | } | |
1965 | break; | |
1966 | ||
ca0569ad | 1967 | case Lisp_Misc: |
5db20f08 | 1968 | switch (XMISCTYPE (obj)) |
38010d50 | 1969 | { |
00d76abc | 1970 | case Lisp_Misc_Marker: |
1db5b1ad | 1971 | strout ("#<marker ", -1, -1, printcharfun); |
087e3c46 KH |
1972 | /* Do you think this is necessary? */ |
1973 | if (XMARKER (obj)->insertion_type != 0) | |
1db5b1ad | 1974 | strout ("(moves after insertion) ", -1, -1, printcharfun); |
cd3587c1 | 1975 | if (! XMARKER (obj)->buffer) |
1db5b1ad | 1976 | strout ("in no buffer", -1, -1, printcharfun); |
ca0569ad RS |
1977 | else |
1978 | { | |
d585695f | 1979 | sprintf (buf, "at %ld", (long)marker_position (obj)); |
1db5b1ad JB |
1980 | strout (buf, -1, -1, printcharfun); |
1981 | strout (" in ", -1, -1, printcharfun); | |
4b4deea2 | 1982 | print_string (BVAR (XMARKER (obj)->buffer, name), printcharfun); |
ca0569ad | 1983 | } |
38010d50 | 1984 | PRINTCHAR ('>'); |
908b0ae5 | 1985 | break; |
00d76abc KH |
1986 | |
1987 | case Lisp_Misc_Overlay: | |
1db5b1ad | 1988 | strout ("#<overlay ", -1, -1, printcharfun); |
cd3587c1 | 1989 | if (! XMARKER (OVERLAY_START (obj))->buffer) |
1db5b1ad | 1990 | strout ("in no buffer", -1, -1, printcharfun); |
ca0569ad RS |
1991 | else |
1992 | { | |
d585695f EZ |
1993 | sprintf (buf, "from %ld to %ld in ", |
1994 | (long)marker_position (OVERLAY_START (obj)), | |
1995 | (long)marker_position (OVERLAY_END (obj))); | |
1db5b1ad | 1996 | strout (buf, -1, -1, printcharfun); |
4b4deea2 | 1997 | print_string (BVAR (XMARKER (OVERLAY_START (obj))->buffer, name), |
ca0569ad RS |
1998 | printcharfun); |
1999 | } | |
2000 | PRINTCHAR ('>'); | |
908b0ae5 | 2001 | break; |
00d76abc KH |
2002 | |
2003 | /* Remaining cases shouldn't happen in normal usage, but let's print | |
2004 | them anyway for the benefit of the debugger. */ | |
2005 | case Lisp_Misc_Free: | |
1db5b1ad | 2006 | strout ("#<misc free cell>", -1, -1, printcharfun); |
00d76abc KH |
2007 | break; |
2008 | ||
c069fee4 | 2009 | case Lisp_Misc_Save_Value: |
1db5b1ad | 2010 | strout ("#<save_value ", -1, -1, printcharfun); |
44455197 | 2011 | sprintf(buf, "ptr=0x%08lx int=%d", |
c069fee4 KS |
2012 | (unsigned long) XSAVE_VALUE (obj)->pointer, |
2013 | XSAVE_VALUE (obj)->integer); | |
1db5b1ad | 2014 | strout (buf, -1, -1, printcharfun); |
c069fee4 KS |
2015 | PRINTCHAR ('>'); |
2016 | break; | |
2017 | ||
00d76abc KH |
2018 | default: |
2019 | goto badtype; | |
e0f93814 | 2020 | } |
00d76abc | 2021 | break; |
ca0569ad RS |
2022 | |
2023 | default: | |
00d76abc | 2024 | badtype: |
ca0569ad RS |
2025 | { |
2026 | /* We're in trouble if this happens! | |
2027 | Probably should just abort () */ | |
1db5b1ad | 2028 | strout ("#<EMACS BUG: INVALID DATATYPE ", -1, -1, printcharfun); |
00d76abc | 2029 | if (MISCP (obj)) |
5db20f08 | 2030 | sprintf (buf, "(MISC 0x%04x)", (int) XMISCTYPE (obj)); |
00d76abc KH |
2031 | else if (VECTORLIKEP (obj)) |
2032 | sprintf (buf, "(PVEC 0x%08x)", (int) XVECTOR (obj)->size); | |
2033 | else | |
2034 | sprintf (buf, "(0x%02x)", (int) XTYPE (obj)); | |
1db5b1ad | 2035 | strout (buf, -1, -1, printcharfun); |
ca0569ad | 2036 | strout (" Save your buffers immediately and please report this bug>", |
1db5b1ad | 2037 | -1, -1, printcharfun); |
ca0569ad | 2038 | } |
38010d50 JB |
2039 | } |
2040 | ||
2041 | print_depth--; | |
2042 | } | |
2043 | \f | |
7651e1f5 RS |
2044 | |
2045 | /* Print a description of INTERVAL using PRINTCHARFUN. | |
2046 | This is part of printing a string that has text properties. */ | |
2047 | ||
2048 | void | |
971de7fb | 2049 | print_interval (INTERVAL interval, Lisp_Object printcharfun) |
7651e1f5 | 2050 | { |
71ea13cb KH |
2051 | if (NILP (interval->plist)) |
2052 | return; | |
30503c0b | 2053 | PRINTCHAR (' '); |
0f25ecc6 | 2054 | print_object (make_number (interval->position), printcharfun, 1); |
7651e1f5 | 2055 | PRINTCHAR (' '); |
0f25ecc6 | 2056 | print_object (make_number (interval->position + LENGTH (interval)), |
cd3587c1 | 2057 | printcharfun, 1); |
7651e1f5 | 2058 | PRINTCHAR (' '); |
0f25ecc6 | 2059 | print_object (interval->plist, printcharfun, 1); |
7651e1f5 RS |
2060 | } |
2061 | ||
7651e1f5 | 2062 | \f |
38010d50 | 2063 | void |
971de7fb | 2064 | syms_of_print (void) |
38010d50 | 2065 | { |
d67b4f80 | 2066 | Qtemp_buffer_setup_hook = intern_c_string ("temp-buffer-setup-hook"); |
d9c21094 RS |
2067 | staticpro (&Qtemp_buffer_setup_hook); |
2068 | ||
29208e82 | 2069 | DEFVAR_LISP ("standard-output", Vstandard_output, |
8c1a1077 PJ |
2070 | doc: /* Output stream `print' uses by default for outputting a character. |
2071 | This may be any function of one argument. | |
2072 | It may also be a buffer (output is inserted before point) | |
2073 | or a marker (output is inserted and the marker is advanced) | |
2074 | or the symbol t (output appears in the echo area). */); | |
38010d50 | 2075 | Vstandard_output = Qt; |
d67b4f80 | 2076 | Qstandard_output = intern_c_string ("standard-output"); |
38010d50 JB |
2077 | staticpro (&Qstandard_output); |
2078 | ||
29208e82 | 2079 | DEFVAR_LISP ("float-output-format", Vfloat_output_format, |
8c1a1077 PJ |
2080 | doc: /* The format descriptor string used to print floats. |
2081 | This is a %-spec like those accepted by `printf' in C, | |
2082 | but with some restrictions. It must start with the two characters `%.'. | |
2083 | After that comes an integer precision specification, | |
2084 | and then a letter which controls the format. | |
2085 | The letters allowed are `e', `f' and `g'. | |
2086 | Use `e' for exponential notation \"DIG.DIGITSeEXPT\" | |
2087 | Use `f' for decimal point notation \"DIGITS.DIGITS\". | |
2088 | Use `g' to choose the shorter of those two formats for the number at hand. | |
2089 | The precision in any of these cases is the number of digits following | |
2090 | the decimal point. With `f', a precision of 0 means to omit the | |
2091 | decimal point. 0 is not allowed with `e' or `g'. | |
2092 | ||
2093 | A value of nil means to use the shortest notation | |
2094 | that represents the number without losing information. */); | |
38010d50 | 2095 | Vfloat_output_format = Qnil; |
d67b4f80 | 2096 | Qfloat_output_format = intern_c_string ("float-output-format"); |
38010d50 | 2097 | staticpro (&Qfloat_output_format); |
38010d50 | 2098 | |
29208e82 | 2099 | DEFVAR_LISP ("print-length", Vprint_length, |
8c1a1077 PJ |
2100 | doc: /* Maximum length of list to print before abbreviating. |
2101 | A value of nil means no limit. See also `eval-expression-print-length'. */); | |
38010d50 JB |
2102 | Vprint_length = Qnil; |
2103 | ||
29208e82 | 2104 | DEFVAR_LISP ("print-level", Vprint_level, |
8c1a1077 PJ |
2105 | doc: /* Maximum depth of list nesting to print before abbreviating. |
2106 | A value of nil means no limit. See also `eval-expression-print-level'. */); | |
38010d50 JB |
2107 | Vprint_level = Qnil; |
2108 | ||
29208e82 | 2109 | DEFVAR_BOOL ("print-escape-newlines", print_escape_newlines, |
8c1a1077 PJ |
2110 | doc: /* Non-nil means print newlines in strings as `\\n'. |
2111 | Also print formfeeds as `\\f'. */); | |
38010d50 JB |
2112 | print_escape_newlines = 0; |
2113 | ||
29208e82 | 2114 | DEFVAR_BOOL ("print-escape-nonascii", print_escape_nonascii, |
8c1a1077 PJ |
2115 | doc: /* Non-nil means print unibyte non-ASCII chars in strings as \\OOO. |
2116 | \(OOO is the octal representation of the character code.) | |
249c0f71 RS |
2117 | Only single-byte characters are affected, and only in `prin1'. |
2118 | When the output goes in a multibyte buffer, this feature is | |
2119 | enabled regardless of the value of the variable. */); | |
38940e93 RS |
2120 | print_escape_nonascii = 0; |
2121 | ||
29208e82 | 2122 | DEFVAR_BOOL ("print-escape-multibyte", print_escape_multibyte, |
8c1a1077 PJ |
2123 | doc: /* Non-nil means print multibyte characters in strings as \\xXXXX. |
2124 | \(XXXX is the hex representation of the character code.) | |
2125 | This affects only `prin1'. */); | |
835d0be6 RS |
2126 | print_escape_multibyte = 0; |
2127 | ||
29208e82 | 2128 | DEFVAR_BOOL ("print-quoted", print_quoted, |
8c1a1077 | 2129 | doc: /* Non-nil means print quoted forms with reader syntax. |
db75cb5f | 2130 | I.e., (quote foo) prints as 'foo, (function foo) as #'foo. */); |
2f100b5c EN |
2131 | print_quoted = 0; |
2132 | ||
29208e82 | 2133 | DEFVAR_LISP ("print-gensym", Vprint_gensym, |
8c1a1077 PJ |
2134 | doc: /* Non-nil means print uninterned symbols so they will read as uninterned. |
2135 | I.e., the value of (make-symbol \"foobar\") prints as #:foobar. | |
2136 | When the uninterned symbol appears within a recursive data structure, | |
2137 | and the symbol appears more than once, in addition use the #N# and #N= | |
2138 | constructs as needed, so that multiple references to the same symbol are | |
2139 | shared once again when the text is read back. */); | |
e0f69431 RS |
2140 | Vprint_gensym = Qnil; |
2141 | ||
29208e82 | 2142 | DEFVAR_LISP ("print-circle", Vprint_circle, |
8c1a1077 PJ |
2143 | doc: /* *Non-nil means print recursive structures using #N= and #N# syntax. |
2144 | If nil, printing proceeds recursively and may lead to | |
2145 | `max-lisp-eval-depth' being exceeded or an error may occur: | |
2146 | \"Apparently circular structure being printed.\" Also see | |
2147 | `print-length' and `print-level'. | |
2148 | If non-nil, shared substructures anywhere in the structure are printed | |
2149 | with `#N=' before the first occurrence (in the order of the print | |
2150 | representation) and `#N#' in place of each subsequent occurrence, | |
2151 | where N is a positive decimal integer. */); | |
0f25ecc6 RS |
2152 | Vprint_circle = Qnil; |
2153 | ||
29208e82 | 2154 | DEFVAR_LISP ("print-continuous-numbering", Vprint_continuous_numbering, |
8c1a1077 PJ |
2155 | doc: /* *Non-nil means number continuously across print calls. |
2156 | This affects the numbers printed for #N= labels and #M# references. | |
2157 | See also `print-circle', `print-gensym', and `print-number-table'. | |
2158 | This variable should not be set with `setq'; bind it with a `let' instead. */); | |
0f25ecc6 RS |
2159 | Vprint_continuous_numbering = Qnil; |
2160 | ||
29208e82 | 2161 | DEFVAR_LISP ("print-number-table", Vprint_number_table, |
8c1a1077 PJ |
2162 | doc: /* A vector used internally to produce `#N=' labels and `#N#' references. |
2163 | The Lisp printer uses this vector to detect Lisp objects referenced more | |
e6d4cddd RS |
2164 | than once. |
2165 | ||
2166 | When you bind `print-continuous-numbering' to t, you should probably | |
2167 | also bind `print-number-table' to nil. This ensures that the value of | |
2168 | `print-number-table' can be garbage-collected once the printing is | |
2169 | done. If all elements of `print-number-table' are nil, it means that | |
2170 | the printing done so far has not found any shared structure or objects | |
2171 | that need to be recorded in the table. */); | |
0f25ecc6 | 2172 | Vprint_number_table = Qnil; |
081e0581 | 2173 | |
29208e82 | 2174 | DEFVAR_LISP ("print-charset-text-property", Vprint_charset_text_property, |
71ea13cb KH |
2175 | doc: /* A flag to control printing of `charset' text property on printing a string. |
2176 | The value must be nil, t, or `default'. | |
2177 | ||
2178 | If the value is nil, don't print the text property `charset'. | |
2179 | ||
2180 | If the value is t, always print the text property `charset'. | |
2181 | ||
2182 | If the value is `default', print the text property `charset' only when | |
2183 | the value is different from what is guessed in the current charset | |
dedbd91c | 2184 | priorities. */); |
71ea13cb KH |
2185 | Vprint_charset_text_property = Qdefault; |
2186 | ||
38010d50 JB |
2187 | /* prin1_to_string_buffer initialized in init_buffer_once in buffer.c */ |
2188 | staticpro (&Vprin1_to_string_buffer); | |
2189 | ||
2190 | defsubr (&Sprin1); | |
2191 | defsubr (&Sprin1_to_string); | |
113620cc | 2192 | defsubr (&Serror_message_string); |
38010d50 JB |
2193 | defsubr (&Sprinc); |
2194 | defsubr (&Sprint); | |
2195 | defsubr (&Sterpri); | |
2196 | defsubr (&Swrite_char); | |
2197 | defsubr (&Sexternal_debugging_output); | |
6b61353c KH |
2198 | #ifdef WITH_REDIRECT_DEBUGGING_OUTPUT |
2199 | defsubr (&Sredirect_debugging_output); | |
2200 | #endif | |
38010d50 | 2201 | |
d67b4f80 | 2202 | Qexternal_debugging_output = intern_c_string ("external-debugging-output"); |
38010d50 JB |
2203 | staticpro (&Qexternal_debugging_output); |
2204 | ||
d67b4f80 | 2205 | Qprint_escape_newlines = intern_c_string ("print-escape-newlines"); |
2f100b5c EN |
2206 | staticpro (&Qprint_escape_newlines); |
2207 | ||
d67b4f80 | 2208 | Qprint_escape_multibyte = intern_c_string ("print-escape-multibyte"); |
835d0be6 RS |
2209 | staticpro (&Qprint_escape_multibyte); |
2210 | ||
d67b4f80 | 2211 | Qprint_escape_nonascii = intern_c_string ("print-escape-nonascii"); |
835d0be6 RS |
2212 | staticpro (&Qprint_escape_nonascii); |
2213 | ||
71ea13cb KH |
2214 | print_prune_charset_plist = Qnil; |
2215 | staticpro (&print_prune_charset_plist); | |
38010d50 | 2216 | } |