Commit | Line | Data |
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38010d50 | 1 | /* Lisp object printing and output streams. |
95df8112 | 2 | |
ba318903 | 3 | Copyright (C) 1985-1986, 1988, 1993-1995, 1997-2014 Free Software |
ab422c4d | 4 | 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> |
406af475 | 23 | #include "sysstdio.h" |
0328b6de | 24 | |
38010d50 | 25 | #include "lisp.h" |
8b4b4467 | 26 | #include "character.h" |
e5560ff7 | 27 | #include "buffer.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 | |
955cbe7b | 42 | static Lisp_Object Qtemp_buffer_setup_hook; |
d9c21094 | 43 | |
2f100b5c | 44 | /* These are used to print like we read. */ |
2f100b5c | 45 | |
955cbe7b | 46 | static Lisp_Object Qfloat_output_format; |
f356c3fb | 47 | |
f356c3fb | 48 | #include <float.h> |
fa2c4f56 | 49 | #include <ftoastr.h> |
f356c3fb | 50 | |
38010d50 | 51 | /* Avoid actual stack overflow in print. */ |
a8b7caa3 | 52 | static ptrdiff_t print_depth; |
38010d50 | 53 | |
a22dec27 | 54 | /* Level of nesting inside outputting backquote in new style. */ |
a8b7caa3 | 55 | static ptrdiff_t new_backquote_output; |
0330bb60 | 56 | |
ec838c39 RS |
57 | /* Detect most circularities to print finite output. */ |
58 | #define PRINT_CIRCLE 200 | |
ad64fc97 | 59 | static Lisp_Object being_printed[PRINT_CIRCLE]; |
ec838c39 | 60 | |
6fec5601 RS |
61 | /* When printing into a buffer, first we put the text in this |
62 | block, then insert it all at once. */ | |
ad64fc97 | 63 | static char *print_buffer; |
6fec5601 RS |
64 | |
65 | /* Size allocated in print_buffer. */ | |
d311d28c | 66 | static ptrdiff_t print_buffer_size; |
dc2a0b79 | 67 | /* Chars stored in print_buffer. */ |
d311d28c | 68 | static ptrdiff_t print_buffer_pos; |
dc2a0b79 | 69 | /* Bytes stored in print_buffer. */ |
d311d28c | 70 | static ptrdiff_t print_buffer_pos_byte; |
6fec5601 | 71 | |
835d0be6 | 72 | Lisp_Object Qprint_escape_newlines; |
955cbe7b | 73 | static Lisp_Object Qprint_escape_multibyte, Qprint_escape_nonascii; |
835d0be6 | 74 | |
a65b85b5 SM |
75 | /* Vprint_number_table is a table, that keeps objects that are going to |
76 | be printed, to allow use of #n= and #n# to express sharing. | |
77 | For any given object, the table can give the following values: | |
78 | t the object will be printed only once. | |
79 | -N the object will be printed several times and will take number N. | |
80 | N the object has been printed so we can refer to it as #N#. | |
81 | print_number_index holds the largest N already used. | |
82 | N has to be striclty larger than 0 since we need to distinguish -N. */ | |
a8b7caa3 | 83 | static ptrdiff_t print_number_index; |
ad64fc97 | 84 | static void print_interval (INTERVAL interval, Lisp_Object printcharfun); |
38010d50 | 85 | |
945b0111 | 86 | /* GDB resets this to zero on W32 to disable OutputDebugString calls. */ |
0bce5d9e | 87 | bool print_output_debug_flag EXTERNALLY_VISIBLE = 1; |
945b0111 | 88 | |
38010d50 | 89 | \f |
4ae29f89 | 90 | /* Low level output routines for characters and strings. */ |
38010d50 JB |
91 | |
92 | /* Lisp functions to do output using a stream | |
081e0581 EN |
93 | must have the stream in a variable called printcharfun |
94 | and must start with PRINTPREPARE, end with PRINTFINISH, | |
95 | and use PRINTDECLARE to declare common variables. | |
96 | Use PRINTCHAR to output one character, | |
4ae29f89 | 97 | or call strout to output a block of characters. */ |
0788646c | 98 | |
f99f5844 | 99 | /* {{coccinelle:skip_start}} */ |
0788646c GM |
100 | #define PRINTDECLARE \ |
101 | struct buffer *old = current_buffer; \ | |
d311d28c PE |
102 | ptrdiff_t old_point = -1, start_point = -1; \ |
103 | ptrdiff_t old_point_byte = -1, start_point_byte = -1; \ | |
9f62b5dd | 104 | dynwind_begin (); \ |
0bce5d9e | 105 | bool free_print_buffer = 0; \ |
0063fdb1 DA |
106 | bool multibyte \ |
107 | = !NILP (BVAR (current_buffer, enable_multibyte_characters)); \ | |
081e0581 EN |
108 | Lisp_Object original |
109 | ||
0788646c GM |
110 | #define PRINTPREPARE \ |
111 | original = printcharfun; \ | |
112 | if (NILP (printcharfun)) printcharfun = Qt; \ | |
113 | if (BUFFERP (printcharfun)) \ | |
114 | { \ | |
115 | if (XBUFFER (printcharfun) != current_buffer) \ | |
116 | Fset_buffer (printcharfun); \ | |
117 | printcharfun = Qnil; \ | |
118 | } \ | |
119 | if (MARKERP (printcharfun)) \ | |
120 | { \ | |
d311d28c | 121 | ptrdiff_t marker_pos; \ |
cd3587c1 | 122 | if (! XMARKER (printcharfun)->buffer) \ |
0788646c | 123 | error ("Marker does not point anywhere"); \ |
1cf21850 LK |
124 | if (XMARKER (printcharfun)->buffer != current_buffer) \ |
125 | set_buffer_internal (XMARKER (printcharfun)->buffer); \ | |
126 | marker_pos = marker_position (printcharfun); \ | |
127 | if (marker_pos < BEGV || marker_pos > ZV) \ | |
b1cf96de DA |
128 | signal_error ("Marker is outside the accessible " \ |
129 | "part of the buffer", printcharfun); \ | |
0788646c GM |
130 | old_point = PT; \ |
131 | old_point_byte = PT_BYTE; \ | |
1cf21850 | 132 | SET_PT_BOTH (marker_pos, \ |
0788646c GM |
133 | marker_byte_position (printcharfun)); \ |
134 | start_point = PT; \ | |
135 | start_point_byte = PT_BYTE; \ | |
136 | printcharfun = Qnil; \ | |
137 | } \ | |
138 | if (NILP (printcharfun)) \ | |
139 | { \ | |
140 | Lisp_Object string; \ | |
b1cf96de | 141 | if (NILP (BVAR (current_buffer, enable_multibyte_characters)) \ |
0788646c GM |
142 | && ! print_escape_multibyte) \ |
143 | specbind (Qprint_escape_multibyte, Qt); \ | |
b1cf96de | 144 | if (! NILP (BVAR (current_buffer, enable_multibyte_characters)) \ |
d39f07c2 RS |
145 | && ! print_escape_nonascii) \ |
146 | specbind (Qprint_escape_nonascii, Qt); \ | |
0788646c GM |
147 | if (print_buffer != 0) \ |
148 | { \ | |
149 | string = make_string_from_bytes (print_buffer, \ | |
150 | print_buffer_pos, \ | |
151 | print_buffer_pos_byte); \ | |
152 | record_unwind_protect (print_unwind, string); \ | |
153 | } \ | |
154 | else \ | |
155 | { \ | |
d311d28c | 156 | int new_size = 1000; \ |
c1ade6f7 | 157 | print_buffer = xmalloc_atomic (new_size); \ |
ff5844ad | 158 | print_buffer_size = new_size; \ |
0788646c GM |
159 | free_print_buffer = 1; \ |
160 | } \ | |
161 | print_buffer_pos = 0; \ | |
162 | print_buffer_pos_byte = 0; \ | |
163 | } \ | |
5494b50f | 164 | if (EQ (printcharfun, Qt) && ! noninteractive) \ |
0f25ecc6 | 165 | setup_echo_area_for_printing (multibyte); |
38010d50 | 166 | |
8a2ab0c6 RS |
167 | #define PRINTFINISH \ |
168 | if (NILP (printcharfun)) \ | |
169 | { \ | |
170 | if (print_buffer_pos != print_buffer_pos_byte \ | |
b1cf96de | 171 | && NILP (BVAR (current_buffer, enable_multibyte_characters)))\ |
8a2ab0c6 | 172 | { \ |
38182d90 | 173 | unsigned char *temp = alloca (print_buffer_pos + 1); \ |
09125ef8 PE |
174 | copy_text ((unsigned char *) print_buffer, temp, \ |
175 | print_buffer_pos_byte, 1, 0); \ | |
b68864e5 | 176 | insert_1_both ((char *) temp, print_buffer_pos, \ |
8a2ab0c6 RS |
177 | print_buffer_pos, 0, 1, 0); \ |
178 | } \ | |
179 | else \ | |
180 | insert_1_both (print_buffer, print_buffer_pos, \ | |
181 | print_buffer_pos_byte, 0, 1, 0); \ | |
570fab6c | 182 | signal_after_change (PT - print_buffer_pos, 0, print_buffer_pos);\ |
8a2ab0c6 RS |
183 | } \ |
184 | if (free_print_buffer) \ | |
185 | { \ | |
186 | xfree (print_buffer); \ | |
187 | print_buffer = 0; \ | |
188 | } \ | |
9f62b5dd | 189 | dynwind_end (); \ |
8a2ab0c6 RS |
190 | if (MARKERP (original)) \ |
191 | set_marker_both (original, Qnil, PT, PT_BYTE); \ | |
192 | if (old_point >= 0) \ | |
193 | SET_PT_BOTH (old_point + (old_point >= start_point \ | |
194 | ? PT - start_point : 0), \ | |
6ddd6eee | 195 | old_point_byte + (old_point_byte >= start_point_byte \ |
cd3587c1 | 196 | ? PT_BYTE - start_point_byte : 0)); \ |
a3d794a1 | 197 | set_buffer_internal (old); |
38010d50 JB |
198 | |
199 | #define PRINTCHAR(ch) printchar (ch, printcharfun) | |
f99f5844 | 200 | /* {{coccinelle:skip_end}} */ |
38010d50 | 201 | |
08e8d297 RS |
202 | /* This is used to restore the saved contents of print_buffer |
203 | when there is a recursive call to print. */ | |
0788646c | 204 | |
27e498e6 | 205 | static void |
971de7fb | 206 | print_unwind (Lisp_Object saved_text) |
08e8d297 | 207 | { |
72af86bd | 208 | memcpy (print_buffer, SDATA (saved_text), SCHARS (saved_text)); |
08e8d297 RS |
209 | } |
210 | ||
0788646c GM |
211 | |
212 | /* Print character CH using method FUN. FUN nil means print to | |
213 | print_buffer. FUN t means print to echo area or stdout if | |
214 | non-interactive. If FUN is neither nil nor t, call FUN with CH as | |
215 | argument. */ | |
38010d50 JB |
216 | |
217 | static void | |
971de7fb | 218 | printchar (unsigned int ch, Lisp_Object fun) |
38010d50 | 219 | { |
0788646c GM |
220 | if (!NILP (fun) && !EQ (fun, Qt)) |
221 | call1 (fun, make_number (ch)); | |
222 | else | |
38010d50 | 223 | { |
19a86a03 KH |
224 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
225 | int len = CHAR_STRING (ch, str); | |
226 | ||
09eddb56 | 227 | QUIT; |
177c0ea7 | 228 | |
0788646c | 229 | if (NILP (fun)) |
9a4d01d8 | 230 | { |
d311d28c | 231 | ptrdiff_t incr = len - (print_buffer_size - print_buffer_pos_byte); |
908589fd AS |
232 | if (incr > 0) |
233 | print_buffer = xpalloc (print_buffer, &print_buffer_size, | |
234 | incr, -1, 1); | |
72af86bd | 235 | memcpy (print_buffer + print_buffer_pos_byte, str, len); |
0788646c GM |
236 | print_buffer_pos += 1; |
237 | print_buffer_pos_byte += len; | |
9a4d01d8 | 238 | } |
0788646c | 239 | else if (noninteractive) |
1134b854 | 240 | { |
0788646c GM |
241 | fwrite (str, 1, len, stdout); |
242 | noninteractive_need_newline = 1; | |
1134b854 | 243 | } |
0788646c | 244 | else |
d366d2e4 | 245 | { |
0bce5d9e | 246 | bool multibyte_p |
4b4deea2 | 247 | = !NILP (BVAR (current_buffer, enable_multibyte_characters)); |
177c0ea7 | 248 | |
eb7b678b | 249 | setup_echo_area_for_printing (multibyte_p); |
0788646c | 250 | insert_char (ch); |
09125ef8 | 251 | message_dolog ((char *) str, len, 0, multibyte_p); |
d366d2e4 | 252 | } |
38010d50 | 253 | } |
38010d50 JB |
254 | } |
255 | ||
0788646c GM |
256 | |
257 | /* Output SIZE characters, SIZE_BYTE bytes from string PTR using | |
258 | method PRINTCHARFUN. If SIZE < 0, use the string length of PTR for | |
259 | both SIZE and SIZE_BYTE. PRINTCHARFUN nil means output to | |
260 | print_buffer. PRINTCHARFUN t means output to the echo area or to | |
261 | stdout if non-interactive. If neither nil nor t, call Lisp | |
262 | function PRINTCHARFUN for each character printed. MULTIBYTE | |
efb15f96 RS |
263 | non-zero means PTR contains multibyte characters. |
264 | ||
265 | In the case where PRINTCHARFUN is nil, it is safe for PTR to point | |
266 | to data in a Lisp string. Otherwise that is not safe. */ | |
0788646c | 267 | |
38010d50 | 268 | static void |
d311d28c | 269 | strout (const char *ptr, ptrdiff_t size, ptrdiff_t size_byte, |
1db5b1ad | 270 | Lisp_Object printcharfun) |
38010d50 | 271 | { |
087e3c46 | 272 | if (size < 0) |
dc2a0b79 | 273 | size_byte = size = strlen (ptr); |
087e3c46 | 274 | |
0788646c | 275 | if (NILP (printcharfun)) |
38010d50 | 276 | { |
d311d28c | 277 | ptrdiff_t incr = size_byte - (print_buffer_size - print_buffer_pos_byte); |
908589fd | 278 | if (incr > 0) |
d311d28c | 279 | print_buffer = xpalloc (print_buffer, &print_buffer_size, incr, -1, 1); |
72af86bd | 280 | memcpy (print_buffer + print_buffer_pos_byte, ptr, size_byte); |
6fec5601 | 281 | print_buffer_pos += size; |
dc2a0b79 | 282 | print_buffer_pos_byte += size_byte; |
38010d50 | 283 | } |
7b0cb8a0 | 284 | else if (noninteractive && EQ (printcharfun, Qt)) |
38010d50 | 285 | { |
0788646c GM |
286 | fwrite (ptr, 1, size_byte, stdout); |
287 | noninteractive_need_newline = 1; | |
288 | } | |
289 | else if (EQ (printcharfun, Qt)) | |
290 | { | |
291 | /* Output to echo area. We're trying to avoid a little overhead | |
292 | here, that's the reason we don't call printchar to do the | |
293 | job. */ | |
294 | int i; | |
0bce5d9e | 295 | bool multibyte_p |
4b4deea2 | 296 | = !NILP (BVAR (current_buffer, enable_multibyte_characters)); |
177c0ea7 | 297 | |
eb7b678b | 298 | setup_echo_area_for_printing (multibyte_p); |
0788646c | 299 | message_dolog (ptr, size_byte, 0, multibyte_p); |
177c0ea7 | 300 | |
0788646c | 301 | if (size == size_byte) |
38010d50 | 302 | { |
0788646c | 303 | for (i = 0; i < size; ++i) |
bcdbfd36 | 304 | insert_char ((unsigned char) *ptr++); |
38010d50 | 305 | } |
0788646c | 306 | else |
38010d50 | 307 | { |
0788646c GM |
308 | int len; |
309 | for (i = 0; i < size_byte; i += len) | |
aec2b95b | 310 | { |
09125ef8 PE |
311 | int ch = STRING_CHAR_AND_LENGTH ((const unsigned char *) ptr + i, |
312 | len); | |
0788646c | 313 | insert_char (ch); |
aec2b95b | 314 | } |
38010d50 | 315 | } |
0788646c GM |
316 | } |
317 | else | |
318 | { | |
319 | /* PRINTCHARFUN is a Lisp function. */ | |
d311d28c | 320 | ptrdiff_t i = 0; |
38010d50 | 321 | |
0788646c | 322 | if (size == size_byte) |
4ad8bb20 | 323 | { |
0788646c | 324 | while (i < size_byte) |
4ad8bb20 | 325 | { |
0788646c GM |
326 | int ch = ptr[i++]; |
327 | PRINTCHAR (ch); | |
4ad8bb20 | 328 | } |
4ad8bb20 | 329 | } |
0788646c | 330 | else |
087e3c46 | 331 | { |
0788646c GM |
332 | while (i < size_byte) |
333 | { | |
334 | /* Here, we must convert each multi-byte form to the | |
335 | corresponding character code before handing it to | |
336 | PRINTCHAR. */ | |
337 | int len; | |
09125ef8 PE |
338 | int ch = STRING_CHAR_AND_LENGTH ((const unsigned char *) ptr + i, |
339 | len); | |
0788646c GM |
340 | PRINTCHAR (ch); |
341 | i += len; | |
342 | } | |
087e3c46 | 343 | } |
38010d50 | 344 | } |
38010d50 JB |
345 | } |
346 | ||
347 | /* Print the contents of a string STRING using PRINTCHARFUN. | |
ed2c35ef RS |
348 | It isn't safe to use strout in many cases, |
349 | because printing one char can relocate. */ | |
38010d50 | 350 | |
dc2a0b79 | 351 | static void |
971de7fb | 352 | print_string (Lisp_Object string, Lisp_Object printcharfun) |
38010d50 | 353 | { |
6fec5601 | 354 | if (EQ (printcharfun, Qt) || NILP (printcharfun)) |
375fcc09 | 355 | { |
d311d28c | 356 | ptrdiff_t chars; |
375fcc09 | 357 | |
8b4b4467 KH |
358 | if (print_escape_nonascii) |
359 | string = string_escape_byte8 (string); | |
360 | ||
375fcc09 | 361 | if (STRING_MULTIBYTE (string)) |
d5db4077 | 362 | chars = SCHARS (string); |
8b4b4467 KH |
363 | else if (! print_escape_nonascii |
364 | && (EQ (printcharfun, Qt) | |
4b4deea2 TT |
365 | ? ! NILP (BVAR (&buffer_defaults, enable_multibyte_characters)) |
366 | : ! NILP (BVAR (current_buffer, enable_multibyte_characters)))) | |
a76ef35d KH |
367 | { |
368 | /* If unibyte string STRING contains 8-bit codes, we must | |
369 | convert STRING to a multibyte string containing the same | |
370 | character codes. */ | |
371 | Lisp_Object newstr; | |
d311d28c | 372 | ptrdiff_t bytes; |
a76ef35d | 373 | |
d5db4077 | 374 | chars = SBYTES (string); |
de883a70 | 375 | bytes = count_size_as_multibyte (SDATA (string), chars); |
a76ef35d KH |
376 | if (chars < bytes) |
377 | { | |
378 | newstr = make_uninit_multibyte_string (chars, bytes); | |
72af86bd | 379 | memcpy (SDATA (newstr), SDATA (string), chars); |
d5db4077 | 380 | str_to_multibyte (SDATA (newstr), bytes, chars); |
a76ef35d KH |
381 | string = newstr; |
382 | } | |
383 | } | |
375fcc09 | 384 | else |
d5db4077 | 385 | chars = SBYTES (string); |
375fcc09 | 386 | |
efb15f96 RS |
387 | if (EQ (printcharfun, Qt)) |
388 | { | |
389 | /* Output to echo area. */ | |
d311d28c | 390 | ptrdiff_t nbytes = SBYTES (string); |
efb15f96 RS |
391 | |
392 | /* Copy the string contents so that relocation of STRING by | |
393 | GC does not cause trouble. */ | |
394 | USE_SAFE_ALLOCA; | |
98c6f1e3 | 395 | char *buffer = SAFE_ALLOCA (nbytes); |
72af86bd | 396 | memcpy (buffer, SDATA (string), nbytes); |
efb15f96 | 397 | |
98c6f1e3 | 398 | strout (buffer, chars, nbytes, printcharfun); |
efb15f96 RS |
399 | |
400 | SAFE_FREE (); | |
401 | } | |
402 | else | |
403 | /* No need to copy, since output to print_buffer can't GC. */ | |
1db5b1ad | 404 | strout (SSDATA (string), chars, SBYTES (string), printcharfun); |
375fcc09 | 405 | } |
38010d50 JB |
406 | else |
407 | { | |
dc2a0b79 RS |
408 | /* Otherwise, string may be relocated by printing one char. |
409 | So re-fetch the string address for each character. */ | |
d311d28c PE |
410 | ptrdiff_t i; |
411 | ptrdiff_t size = SCHARS (string); | |
412 | ptrdiff_t size_byte = SBYTES (string); | |
38010d50 JB |
413 | struct gcpro gcpro1; |
414 | GCPRO1 (string); | |
dc2a0b79 RS |
415 | if (size == size_byte) |
416 | for (i = 0; i < size; i++) | |
d5db4077 | 417 | PRINTCHAR (SREF (string, i)); |
dc2a0b79 | 418 | else |
6b61353c | 419 | for (i = 0; i < size_byte; ) |
dc2a0b79 RS |
420 | { |
421 | /* Here, we must convert each multi-byte form to the | |
422 | corresponding character code before handing it to PRINTCHAR. */ | |
423 | int len; | |
62a6e103 | 424 | int ch = STRING_CHAR_AND_LENGTH (SDATA (string) + i, len); |
dc2a0b79 RS |
425 | PRINTCHAR (ch); |
426 | i += len; | |
427 | } | |
38010d50 JB |
428 | UNGCPRO; |
429 | } | |
430 | } | |
431 | \f | |
432 | DEFUN ("write-char", Fwrite_char, Swrite_char, 1, 2, 0, | |
8c1a1077 PJ |
433 | doc: /* Output character CHARACTER to stream PRINTCHARFUN. |
434 | PRINTCHARFUN defaults to the value of `standard-output' (which see). */) | |
5842a27b | 435 | (Lisp_Object character, Lisp_Object printcharfun) |
38010d50 | 436 | { |
081e0581 | 437 | PRINTDECLARE; |
38010d50 | 438 | |
10eebdbb | 439 | if (NILP (printcharfun)) |
38010d50 | 440 | printcharfun = Vstandard_output; |
b7826503 | 441 | CHECK_NUMBER (character); |
38010d50 | 442 | PRINTPREPARE; |
3738a371 | 443 | PRINTCHAR (XINT (character)); |
38010d50 | 444 | PRINTFINISH; |
3738a371 | 445 | return character; |
38010d50 JB |
446 | } |
447 | ||
dc2a0b79 RS |
448 | /* Used from outside of print.c to print a block of SIZE |
449 | single-byte chars at DATA on the default output stream. | |
38010d50 JB |
450 | Do not use this on the contents of a Lisp string. */ |
451 | ||
dc22f25e | 452 | void |
a8fe7202 | 453 | write_string (const char *data, int size) |
38010d50 | 454 | { |
081e0581 | 455 | PRINTDECLARE; |
38010d50 | 456 | Lisp_Object printcharfun; |
38010d50 JB |
457 | |
458 | printcharfun = Vstandard_output; | |
459 | ||
460 | PRINTPREPARE; | |
1db5b1ad | 461 | strout (data, size, size, printcharfun); |
38010d50 JB |
462 | PRINTFINISH; |
463 | } | |
464 | ||
2f7c71a1 AS |
465 | /* Used to print a block of SIZE single-byte chars at DATA on a |
466 | specified stream PRINTCHARFUN. | |
38010d50 JB |
467 | Do not use this on the contents of a Lisp string. */ |
468 | ||
2f7c71a1 | 469 | static void |
a8fe7202 | 470 | write_string_1 (const char *data, int size, Lisp_Object printcharfun) |
38010d50 | 471 | { |
081e0581 | 472 | PRINTDECLARE; |
38010d50 JB |
473 | |
474 | PRINTPREPARE; | |
1db5b1ad | 475 | strout (data, size, size, printcharfun); |
38010d50 JB |
476 | PRINTFINISH; |
477 | } | |
478 | ||
479 | ||
38010d50 | 480 | void |
971de7fb | 481 | temp_output_buffer_setup (const char *bufname) |
38010d50 JB |
482 | { |
483 | register struct buffer *old = current_buffer; | |
484 | register Lisp_Object buf; | |
485 | ||
9f62b5dd | 486 | dynwind_begin (); |
66322887 | 487 | record_unwind_current_buffer (); |
d9c21094 | 488 | |
38010d50 JB |
489 | Fset_buffer (Fget_buffer_create (build_string (bufname))); |
490 | ||
9756ea0f | 491 | Fkill_all_local_variables (); |
fd531951 | 492 | delete_all_overlays (current_buffer); |
39eb03f1 PE |
493 | bset_directory (current_buffer, BVAR (old, directory)); |
494 | bset_read_only (current_buffer, Qnil); | |
495 | bset_filename (current_buffer, Qnil); | |
496 | bset_undo_list (current_buffer, Qt); | |
fd318b54 DA |
497 | eassert (current_buffer->overlays_before == NULL); |
498 | eassert (current_buffer->overlays_after == NULL); | |
39eb03f1 PE |
499 | bset_enable_multibyte_characters |
500 | (current_buffer, BVAR (&buffer_defaults, enable_multibyte_characters)); | |
d28eab19 KH |
501 | specbind (Qinhibit_read_only, Qt); |
502 | specbind (Qinhibit_modification_hooks, Qt); | |
38010d50 | 503 | Ferase_buffer (); |
633307b5 | 504 | XSETBUFFER (buf, current_buffer); |
38010d50 | 505 | |
98040cf1 | 506 | Frun_hooks (1, &Qtemp_buffer_setup_hook); |
d9c21094 | 507 | |
9f62b5dd | 508 | dynwind_end (); |
d9c21094 RS |
509 | |
510 | specbind (Qstandard_output, buf); | |
38010d50 | 511 | } |
38010d50 | 512 | \f |
0bce5d9e PE |
513 | static void print (Lisp_Object, Lisp_Object, bool); |
514 | static void print_preprocess (Lisp_Object); | |
515 | static void print_preprocess_string (INTERVAL, Lisp_Object); | |
516 | static void print_object (Lisp_Object, Lisp_Object, bool); | |
38010d50 | 517 | |
a7ca3326 | 518 | DEFUN ("terpri", Fterpri, Sterpri, 0, 1, 0, |
8c1a1077 PJ |
519 | doc: /* Output a newline to stream PRINTCHARFUN. |
520 | If PRINTCHARFUN is omitted or nil, the value of `standard-output' is used. */) | |
5842a27b | 521 | (Lisp_Object printcharfun) |
38010d50 | 522 | { |
081e0581 | 523 | PRINTDECLARE; |
38010d50 | 524 | |
10eebdbb | 525 | if (NILP (printcharfun)) |
38010d50 JB |
526 | printcharfun = Vstandard_output; |
527 | PRINTPREPARE; | |
528 | PRINTCHAR ('\n'); | |
529 | PRINTFINISH; | |
530 | return Qt; | |
531 | } | |
532 | ||
a7ca3326 | 533 | DEFUN ("prin1", Fprin1, Sprin1, 1, 2, 0, |
8c1a1077 PJ |
534 | doc: /* Output the printed representation of OBJECT, any Lisp object. |
535 | Quoting characters are printed when needed to make output that `read' | |
9474c847 | 536 | can handle, whenever this is possible. For complex objects, the behavior |
7fab9223 | 537 | is controlled by `print-level' and `print-length', which see. |
8c1a1077 PJ |
538 | |
539 | OBJECT is any of the Lisp data types: a number, a string, a symbol, | |
540 | a list, a buffer, a window, a frame, etc. | |
541 | ||
542 | A printed representation of an object is text which describes that object. | |
543 | ||
544 | Optional argument PRINTCHARFUN is the output stream, which can be one | |
545 | of these: | |
546 | ||
547 | - a buffer, in which case output is inserted into that buffer at point; | |
548 | - a marker, in which case output is inserted at marker's position; | |
549 | - a function, in which case that function is called once for each | |
550 | character of OBJECT's printed representation; | |
551 | - a symbol, in which case that symbol's function definition is called; or | |
552 | - t, in which case the output is displayed in the echo area. | |
553 | ||
554 | If PRINTCHARFUN is omitted, the value of `standard-output' (which see) | |
555 | is used instead. */) | |
5842a27b | 556 | (Lisp_Object object, Lisp_Object printcharfun) |
38010d50 | 557 | { |
081e0581 | 558 | PRINTDECLARE; |
38010d50 | 559 | |
10eebdbb | 560 | if (NILP (printcharfun)) |
38010d50 JB |
561 | printcharfun = Vstandard_output; |
562 | PRINTPREPARE; | |
3738a371 | 563 | print (object, printcharfun, 1); |
38010d50 | 564 | PRINTFINISH; |
3738a371 | 565 | return object; |
38010d50 JB |
566 | } |
567 | ||
568 | /* a buffer which is used to hold output being built by prin1-to-string */ | |
569 | Lisp_Object Vprin1_to_string_buffer; | |
570 | ||
a7ca3326 | 571 | DEFUN ("prin1-to-string", Fprin1_to_string, Sprin1_to_string, 1, 2, 0, |
fd4d156b RS |
572 | doc: /* Return a string containing the printed representation of OBJECT. |
573 | OBJECT can be any Lisp object. This function outputs quoting characters | |
cf393f9b | 574 | when necessary to make output that `read' can handle, whenever possible, |
a2612656 EZ |
575 | unless the optional second argument NOESCAPE is non-nil. For complex objects, |
576 | the behavior is controlled by `print-level' and `print-length', which see. | |
8c1a1077 PJ |
577 | |
578 | OBJECT is any of the Lisp data types: a number, a string, a symbol, | |
579 | a list, a buffer, a window, a frame, etc. | |
580 | ||
581 | A printed representation of an object is text which describes that object. */) | |
5842a27b | 582 | (Lisp_Object object, Lisp_Object noescape) |
38010d50 | 583 | { |
081e0581 | 584 | Lisp_Object printcharfun; |
fce31d69 | 585 | bool prev_abort_on_gc; |
ca2de342 RS |
586 | /* struct gcpro gcpro1, gcpro2; */ |
587 | Lisp_Object save_deactivate_mark; | |
6b61353c | 588 | struct buffer *previous; |
ca2de342 | 589 | |
9f62b5dd | 590 | dynwind_begin (); |
ca2de342 | 591 | specbind (Qinhibit_modification_hooks, Qt); |
2a42e8f6 | 592 | |
6b61353c KH |
593 | { |
594 | PRINTDECLARE; | |
595 | ||
596 | /* Save and restore this--we are altering a buffer | |
597 | but we don't want to deactivate the mark just for that. | |
598 | No need for specbind, since errors deactivate the mark. */ | |
599 | save_deactivate_mark = Vdeactivate_mark; | |
600 | /* GCPRO2 (object, save_deactivate_mark); */ | |
6b61353c KH |
601 | |
602 | printcharfun = Vprin1_to_string_buffer; | |
603 | PRINTPREPARE; | |
604 | print (object, printcharfun, NILP (noescape)); | |
6196cffe | 605 | /* Make Vprin1_to_string_buffer be the default buffer after PRINTFINISH */ |
6b61353c KH |
606 | PRINTFINISH; |
607 | } | |
38010d50 | 608 | |
6b61353c | 609 | previous = current_buffer; |
38010d50 | 610 | set_buffer_internal (XBUFFER (Vprin1_to_string_buffer)); |
3738a371 | 611 | object = Fbuffer_string (); |
b51ee131 SM |
612 | if (SBYTES (object) == SCHARS (object)) |
613 | STRING_SET_UNIBYTE (object); | |
38010d50 | 614 | |
28b8f740 | 615 | /* Note that this won't make prepare_to_modify_buffer call |
6b61353c KH |
616 | ask-user-about-supersession-threat because this buffer |
617 | does not visit a file. */ | |
38010d50 | 618 | Ferase_buffer (); |
6b61353c | 619 | set_buffer_internal (previous); |
2a42e8f6 | 620 | |
ca2de342 RS |
621 | Vdeactivate_mark = save_deactivate_mark; |
622 | /* UNGCPRO; */ | |
38010d50 | 623 | |
9f62b5dd BT |
624 | dynwind_end (); |
625 | return object; | |
38010d50 JB |
626 | } |
627 | ||
ad64fc97 | 628 | DEFUN ("princ", Fprinc, Sprinc, 1, 2, 0, |
8c1a1077 PJ |
629 | doc: /* Output the printed representation of OBJECT, any Lisp object. |
630 | No quoting characters are used; no delimiters are printed around | |
631 | the contents of strings. | |
632 | ||
633 | OBJECT is any of the Lisp data types: a number, a string, a symbol, | |
634 | a list, a buffer, a window, a frame, etc. | |
635 | ||
636 | A printed representation of an object is text which describes that object. | |
637 | ||
638 | Optional argument PRINTCHARFUN is the output stream, which can be one | |
639 | of these: | |
640 | ||
641 | - a buffer, in which case output is inserted into that buffer at point; | |
642 | - a marker, in which case output is inserted at marker's position; | |
643 | - a function, in which case that function is called once for each | |
644 | character of OBJECT's printed representation; | |
645 | - a symbol, in which case that symbol's function definition is called; or | |
646 | - t, in which case the output is displayed in the echo area. | |
647 | ||
648 | If PRINTCHARFUN is omitted, the value of `standard-output' (which see) | |
649 | is used instead. */) | |
5842a27b | 650 | (Lisp_Object object, Lisp_Object printcharfun) |
38010d50 | 651 | { |
081e0581 | 652 | PRINTDECLARE; |
38010d50 | 653 | |
10eebdbb | 654 | if (NILP (printcharfun)) |
38010d50 JB |
655 | printcharfun = Vstandard_output; |
656 | PRINTPREPARE; | |
3738a371 | 657 | print (object, printcharfun, 0); |
38010d50 | 658 | PRINTFINISH; |
3738a371 | 659 | return object; |
38010d50 JB |
660 | } |
661 | ||
a7ca3326 | 662 | DEFUN ("print", Fprint, Sprint, 1, 2, 0, |
8c1a1077 PJ |
663 | doc: /* Output the printed representation of OBJECT, with newlines around it. |
664 | Quoting characters are printed when needed to make output that `read' | |
9474c847 | 665 | can handle, whenever this is possible. For complex objects, the behavior |
7fab9223 | 666 | is controlled by `print-level' and `print-length', which see. |
8c1a1077 PJ |
667 | |
668 | OBJECT is any of the Lisp data types: a number, a string, a symbol, | |
669 | a list, a buffer, a window, a frame, etc. | |
670 | ||
671 | A printed representation of an object is text which describes that object. | |
672 | ||
673 | Optional argument PRINTCHARFUN is the output stream, which can be one | |
674 | of these: | |
675 | ||
676 | - a buffer, in which case output is inserted into that buffer at point; | |
677 | - a marker, in which case output is inserted at marker's position; | |
678 | - a function, in which case that function is called once for each | |
679 | character of OBJECT's printed representation; | |
680 | - a symbol, in which case that symbol's function definition is called; or | |
681 | - t, in which case the output is displayed in the echo area. | |
682 | ||
683 | If PRINTCHARFUN is omitted, the value of `standard-output' (which see) | |
684 | is used instead. */) | |
5842a27b | 685 | (Lisp_Object object, Lisp_Object printcharfun) |
38010d50 | 686 | { |
081e0581 | 687 | PRINTDECLARE; |
38010d50 JB |
688 | struct gcpro gcpro1; |
689 | ||
10eebdbb | 690 | if (NILP (printcharfun)) |
38010d50 | 691 | printcharfun = Vstandard_output; |
3738a371 | 692 | GCPRO1 (object); |
38010d50 | 693 | PRINTPREPARE; |
38010d50 | 694 | PRINTCHAR ('\n'); |
3738a371 | 695 | print (object, printcharfun, 1); |
38010d50 JB |
696 | PRINTCHAR ('\n'); |
697 | PRINTFINISH; | |
38010d50 | 698 | UNGCPRO; |
3738a371 | 699 | return object; |
38010d50 JB |
700 | } |
701 | ||
702 | /* The subroutine object for external-debugging-output is kept here | |
703 | for the convenience of the debugger. */ | |
704 | Lisp_Object Qexternal_debugging_output; | |
705 | ||
4746118a | 706 | DEFUN ("external-debugging-output", Fexternal_debugging_output, Sexternal_debugging_output, 1, 1, 0, |
8c1a1077 PJ |
707 | doc: /* Write CHARACTER to stderr. |
708 | You can call print while debugging emacs, and pass it this function | |
709 | to make it write to the debugging output. */) | |
5842a27b | 710 | (Lisp_Object character) |
38010d50 | 711 | { |
9ef58a52 | 712 | unsigned int ch; |
cd22039d | 713 | |
9ef58a52 EZ |
714 | CHECK_NUMBER (character); |
715 | ch = XINT (character); | |
716 | if (ASCII_CHAR_P (ch)) | |
945b0111 | 717 | { |
9ef58a52 EZ |
718 | putc (ch, stderr); |
719 | #ifdef WINDOWSNT | |
720 | /* Send the output to a debugger (nothing happens if there isn't | |
721 | one). */ | |
722 | if (print_output_debug_flag) | |
723 | { | |
724 | char buf[2] = {(char) XINT (character), '\0'}; | |
725 | OutputDebugString (buf); | |
726 | } | |
727 | #endif | |
945b0111 | 728 | } |
9ef58a52 EZ |
729 | else |
730 | { | |
731 | unsigned char mbstr[MAX_MULTIBYTE_LENGTH]; | |
732 | ptrdiff_t len = CHAR_STRING (ch, mbstr); | |
733 | Lisp_Object encoded_ch = | |
34baf96c | 734 | ENCODE_SYSTEM (make_multibyte_string ((char *) mbstr, 1, len)); |
9ef58a52 EZ |
735 | |
736 | fwrite (SSDATA (encoded_ch), SBYTES (encoded_ch), 1, stderr); | |
737 | #ifdef WINDOWSNT | |
738 | if (print_output_debug_flag) | |
739 | OutputDebugString (SSDATA (encoded_ch)); | |
cd22039d | 740 | #endif |
9ef58a52 | 741 | } |
cd22039d | 742 | |
38010d50 JB |
743 | return character; |
744 | } | |
cf1bb91b | 745 | |
c33f8948 RS |
746 | /* This function is never called. Its purpose is to prevent |
747 | print_output_debug_flag from being optimized away. */ | |
748 | ||
0bce5d9e | 749 | extern void debug_output_compilation_hack (bool) EXTERNALLY_VISIBLE; |
dae581bf | 750 | void |
0bce5d9e | 751 | debug_output_compilation_hack (bool x) |
c33f8948 RS |
752 | { |
753 | print_output_debug_flag = x; | |
754 | } | |
6b61353c | 755 | |
cd3587c1 | 756 | #if defined (GNU_LINUX) |
6b61353c KH |
757 | |
758 | /* This functionality is not vitally important in general, so we rely on | |
759 | non-portable ability to use stderr as lvalue. */ | |
760 | ||
761 | #define WITH_REDIRECT_DEBUGGING_OUTPUT 1 | |
762 | ||
ad64fc97 | 763 | static FILE *initial_stderr_stream = NULL; |
6b61353c KH |
764 | |
765 | DEFUN ("redirect-debugging-output", Fredirect_debugging_output, Sredirect_debugging_output, | |
766 | 1, 2, | |
767 | "FDebug output file: \nP", | |
768 | doc: /* Redirect debugging output (stderr stream) to file FILE. | |
769 | If FILE is nil, reset target to the initial stderr stream. | |
770 | Optional arg APPEND non-nil (interactively, with prefix arg) means | |
28b8f740 | 771 | append to existing target file. */) |
5842a27b | 772 | (Lisp_Object file, Lisp_Object append) |
6b61353c KH |
773 | { |
774 | if (initial_stderr_stream != NULL) | |
f9467be3 | 775 | { |
4d7e6e51 | 776 | block_input (); |
f9467be3 | 777 | fclose (stderr); |
4d7e6e51 | 778 | unblock_input (); |
f9467be3 | 779 | } |
6b61353c KH |
780 | stderr = initial_stderr_stream; |
781 | initial_stderr_stream = NULL; | |
782 | ||
783 | if (STRINGP (file)) | |
784 | { | |
785 | file = Fexpand_file_name (file, Qnil); | |
786 | initial_stderr_stream = stderr; | |
406af475 | 787 | stderr = emacs_fopen (SSDATA (file), NILP (append) ? "w" : "a"); |
6b61353c KH |
788 | if (stderr == NULL) |
789 | { | |
790 | stderr = initial_stderr_stream; | |
791 | initial_stderr_stream = NULL; | |
a9757f6a | 792 | report_file_error ("Cannot open debugging output stream", file); |
6b61353c KH |
793 | } |
794 | } | |
795 | return Qnil; | |
796 | } | |
797 | #endif /* GNU_LINUX */ | |
798 | ||
799 | ||
cf1bb91b RS |
800 | /* This is the interface for debugging printing. */ |
801 | ||
802 | void | |
971de7fb | 803 | debug_print (Lisp_Object arg) |
cf1bb91b RS |
804 | { |
805 | Fprin1 (arg, Qexternal_debugging_output); | |
3684eb78 | 806 | fprintf (stderr, "\r\n"); |
cf1bb91b | 807 | } |
bd90dcd0 | 808 | |
e3b27b31 | 809 | void safe_debug_print (Lisp_Object) EXTERNALLY_VISIBLE; |
bd90dcd0 | 810 | void |
971de7fb | 811 | safe_debug_print (Lisp_Object arg) |
bd90dcd0 KS |
812 | { |
813 | int valid = valid_lisp_object_p (arg); | |
814 | ||
815 | if (valid > 0) | |
816 | debug_print (arg); | |
817 | else | |
c2982e87 | 818 | fprintf (stderr, "#<%s_LISP_OBJECT 0x%08"pI"x>\r\n", |
bd90dcd0 | 819 | !valid ? "INVALID" : "SOME", |
61ddb1b9 | 820 | XLI (arg)); |
bd90dcd0 KS |
821 | } |
822 | ||
38010d50 | 823 | \f |
a7ca3326 | 824 | DEFUN ("error-message-string", Ferror_message_string, Serror_message_string, |
113620cc | 825 | 1, 1, 0, |
6b61353c KH |
826 | doc: /* Convert an error value (ERROR-SYMBOL . DATA) to an error message. |
827 | See Info anchor `(elisp)Definition of signal' for some details on how this | |
828 | error message is constructed. */) | |
5842a27b | 829 | (Lisp_Object obj) |
113620cc KH |
830 | { |
831 | struct buffer *old = current_buffer; | |
63fbf4ff | 832 | Lisp_Object value; |
113620cc KH |
833 | struct gcpro gcpro1; |
834 | ||
0872e11f RS |
835 | /* If OBJ is (error STRING), just return STRING. |
836 | That is not only faster, it also avoids the need to allocate | |
837 | space here when the error is due to memory full. */ | |
94b342ce KR |
838 | if (CONSP (obj) && EQ (XCAR (obj), Qerror) |
839 | && CONSP (XCDR (obj)) | |
840 | && STRINGP (XCAR (XCDR (obj))) | |
841 | && NILP (XCDR (XCDR (obj)))) | |
842 | return XCAR (XCDR (obj)); | |
0872e11f | 843 | |
240e806c | 844 | print_error_message (obj, Vprin1_to_string_buffer, 0, Qnil); |
113620cc KH |
845 | |
846 | set_buffer_internal (XBUFFER (Vprin1_to_string_buffer)); | |
847 | value = Fbuffer_string (); | |
848 | ||
849 | GCPRO1 (value); | |
850 | Ferase_buffer (); | |
851 | set_buffer_internal (old); | |
852 | UNGCPRO; | |
853 | ||
854 | return value; | |
855 | } | |
856 | ||
c02279de | 857 | /* Print an error message for the error DATA onto Lisp output stream |
7ab56fea RS |
858 | STREAM (suitable for the print functions). |
859 | CONTEXT is a C string describing the context of the error. | |
860 | CALLER is the Lisp function inside which the error was signaled. */ | |
113620cc | 861 | |
dc22f25e | 862 | void |
a8fe7202 AS |
863 | print_error_message (Lisp_Object data, Lisp_Object stream, const char *context, |
864 | Lisp_Object caller) | |
113620cc KH |
865 | { |
866 | Lisp_Object errname, errmsg, file_error, tail; | |
867 | struct gcpro gcpro1; | |
113620cc | 868 | |
240e806c RS |
869 | if (context != 0) |
870 | write_string_1 (context, -1, stream); | |
871 | ||
872 | /* If we know from where the error was signaled, show it in | |
873 | *Messages*. */ | |
874 | if (!NILP (caller) && SYMBOLP (caller)) | |
875 | { | |
11fb15d5 | 876 | Lisp_Object cname = SYMBOL_NAME (caller); |
98c6f1e3 | 877 | ptrdiff_t cnamelen = SBYTES (cname); |
d311d28c | 878 | USE_SAFE_ALLOCA; |
98c6f1e3 PE |
879 | char *name = SAFE_ALLOCA (cnamelen); |
880 | memcpy (name, SDATA (cname), cnamelen); | |
881 | message_dolog (name, cnamelen, 0, 0); | |
240e806c | 882 | message_dolog (": ", 2, 0, 0); |
d311d28c | 883 | SAFE_FREE (); |
240e806c RS |
884 | } |
885 | ||
113620cc KH |
886 | errname = Fcar (data); |
887 | ||
888 | if (EQ (errname, Qerror)) | |
889 | { | |
890 | data = Fcdr (data); | |
c02279de GM |
891 | if (!CONSP (data)) |
892 | data = Qnil; | |
113620cc KH |
893 | errmsg = Fcar (data); |
894 | file_error = Qnil; | |
895 | } | |
896 | else | |
897 | { | |
71873e2b | 898 | Lisp_Object error_conditions = Fget (errname, Qerror_conditions); |
113620cc | 899 | errmsg = Fget (errname, Qerror_message); |
c02279de | 900 | file_error = Fmemq (Qfile_error, error_conditions); |
113620cc KH |
901 | } |
902 | ||
903 | /* Print an error message including the data items. */ | |
904 | ||
905 | tail = Fcdr_safe (data); | |
906 | GCPRO1 (tail); | |
907 | ||
908 | /* For file-error, make error message by concatenating | |
909 | all the data items. They are all strings. */ | |
8c29413d | 910 | if (!NILP (file_error) && CONSP (tail)) |
94b342ce | 911 | errmsg = XCAR (tail), tail = XCDR (tail); |
113620cc | 912 | |
71873e2b SM |
913 | { |
914 | const char *sep = ": "; | |
915 | ||
916 | if (!STRINGP (errmsg)) | |
917 | write_string_1 ("peculiar error", -1, stream); | |
918 | else if (SCHARS (errmsg)) | |
919 | Fprinc (errmsg, stream); | |
920 | else | |
921 | sep = NULL; | |
922 | ||
923 | for (; CONSP (tail); tail = XCDR (tail), sep = ", ") | |
924 | { | |
925 | Lisp_Object obj; | |
99027bdd | 926 | |
71873e2b SM |
927 | if (sep) |
928 | write_string_1 (sep, 2, stream); | |
929 | obj = XCAR (tail); | |
930 | if (!NILP (file_error) | |
931 | || EQ (errname, Qend_of_file) || EQ (errname, Quser_error)) | |
932 | Fprinc (obj, stream); | |
933 | else | |
934 | Fprin1 (obj, stream); | |
935 | } | |
936 | } | |
177c0ea7 | 937 | |
113620cc KH |
938 | UNGCPRO; |
939 | } | |
38010d50 | 940 | |
c02279de GM |
941 | |
942 | \f | |
38010d50 | 943 | /* |
edb2a707 | 944 | * The buffer should be at least as large as the max string size of the |
8e6208c5 | 945 | * largest float, printed in the biggest notation. This is undoubtedly |
38010d50 JB |
946 | * 20d float_output_format, with the negative of the C-constant "HUGE" |
947 | * from <math.h>. | |
177c0ea7 | 948 | * |
38010d50 | 949 | * On the vax the worst case is -1e38 in 20d format which takes 61 bytes. |
177c0ea7 | 950 | * |
38010d50 JB |
951 | * I assume that IEEE-754 format numbers can take 329 bytes for the worst |
952 | * case of -1e307 in 20d float_output_format. What is one to do (short of | |
953 | * re-writing _doprnt to be more sane)? | |
954 | * -wsr | |
6e8e6bf2 | 955 | * Given the above, the buffer must be least FLOAT_TO_STRING_BUFSIZE bytes. |
38010d50 | 956 | */ |
edb2a707 | 957 | |
99027bdd | 958 | int |
57ace6d0 | 959 | float_to_string (char *buf, double data) |
38010d50 | 960 | { |
57ace6d0 | 961 | char *cp; |
322890c4 | 962 | int width; |
99027bdd | 963 | int len; |
177c0ea7 | 964 | |
7f45de2d RS |
965 | /* Check for plus infinity in a way that won't lose |
966 | if there is no plus infinity. */ | |
967 | if (data == data / 2 && data > 1.0) | |
968 | { | |
99027bdd PE |
969 | static char const infinity_string[] = "1.0e+INF"; |
970 | strcpy (buf, infinity_string); | |
971 | return sizeof infinity_string - 1; | |
7f45de2d RS |
972 | } |
973 | /* Likewise for minus infinity. */ | |
974 | if (data == data / 2 && data < -1.0) | |
975 | { | |
99027bdd PE |
976 | static char const minus_infinity_string[] = "-1.0e+INF"; |
977 | strcpy (buf, minus_infinity_string); | |
978 | return sizeof minus_infinity_string - 1; | |
7f45de2d RS |
979 | } |
980 | /* Check for NaN in a way that won't fail if there are no NaNs. */ | |
981 | if (! (data * 0.0 >= 0.0)) | |
982 | { | |
68c45bf0 PE |
983 | /* Prepend "-" if the NaN's sign bit is negative. |
984 | The sign bit of a double is the bit that is 1 in -0.0. */ | |
99027bdd | 985 | static char const NaN_string[] = "0.0e+NaN"; |
68c45bf0 PE |
986 | int i; |
987 | union { double d; char c[sizeof (double)]; } u_data, u_minus_zero; | |
0bce5d9e | 988 | bool negative = 0; |
68c45bf0 PE |
989 | u_data.d = data; |
990 | u_minus_zero.d = - 0.0; | |
991 | for (i = 0; i < sizeof (double); i++) | |
992 | if (u_data.c[i] & u_minus_zero.c[i]) | |
993 | { | |
99027bdd PE |
994 | *buf = '-'; |
995 | negative = 1; | |
68c45bf0 PE |
996 | break; |
997 | } | |
177c0ea7 | 998 | |
99027bdd PE |
999 | strcpy (buf + negative, NaN_string); |
1000 | return negative + sizeof NaN_string - 1; | |
7f45de2d RS |
1001 | } |
1002 | ||
10eebdbb | 1003 | if (NILP (Vfloat_output_format) |
d4ae1f7e | 1004 | || !STRINGP (Vfloat_output_format)) |
38010d50 | 1005 | lose: |
322890c4 | 1006 | { |
f356c3fb | 1007 | /* Generate the fewest number of digits that represent the |
6e8e6bf2 | 1008 | floating point value without losing information. */ |
99027bdd | 1009 | len = dtoastr (buf, FLOAT_TO_STRING_BUFSIZE - 2, 0, 0, data); |
75b43359 MWD |
1010 | /* The decimal point must be printed, or the byte compiler can |
1011 | get confused (Bug#8033). */ | |
1012 | width = 1; | |
322890c4 | 1013 | } |
38010d50 JB |
1014 | else /* oink oink */ |
1015 | { | |
1016 | /* Check that the spec we have is fully valid. | |
1017 | This means not only valid for printf, | |
1018 | but meant for floats, and reasonable. */ | |
57ace6d0 | 1019 | cp = SSDATA (Vfloat_output_format); |
38010d50 JB |
1020 | |
1021 | if (cp[0] != '%') | |
1022 | goto lose; | |
1023 | if (cp[1] != '.') | |
1024 | goto lose; | |
1025 | ||
1026 | cp += 2; | |
c7b14277 JB |
1027 | |
1028 | /* Check the width specification. */ | |
322890c4 | 1029 | width = -1; |
c7b14277 | 1030 | if ('0' <= *cp && *cp <= '9') |
381cd4bb KH |
1031 | { |
1032 | width = 0; | |
1033 | do | |
aca216ff PE |
1034 | { |
1035 | width = (width * 10) + (*cp++ - '0'); | |
1036 | if (DBL_DIG < width) | |
1037 | goto lose; | |
1038 | } | |
381cd4bb KH |
1039 | while (*cp >= '0' && *cp <= '9'); |
1040 | ||
1041 | /* A precision of zero is valid only for %f. */ | |
aca216ff | 1042 | if (width == 0 && *cp != 'f') |
381cd4bb KH |
1043 | goto lose; |
1044 | } | |
38010d50 JB |
1045 | |
1046 | if (*cp != 'e' && *cp != 'f' && *cp != 'g') | |
1047 | goto lose; | |
1048 | ||
38010d50 JB |
1049 | if (cp[1] != 0) |
1050 | goto lose; | |
1051 | ||
99027bdd | 1052 | len = sprintf (buf, SSDATA (Vfloat_output_format), data); |
38010d50 | 1053 | } |
edb2a707 | 1054 | |
c7b14277 JB |
1055 | /* Make sure there is a decimal point with digit after, or an |
1056 | exponent, so that the value is readable as a float. But don't do | |
322890c4 RS |
1057 | this with "%.0f"; it's valid for that not to produce a decimal |
1058 | point. Note that width can be 0 only for %.0f. */ | |
1059 | if (width != 0) | |
0601fd3d | 1060 | { |
c7b14277 JB |
1061 | for (cp = buf; *cp; cp++) |
1062 | if ((*cp < '0' || *cp > '9') && *cp != '-') | |
1063 | break; | |
0601fd3d | 1064 | |
c7b14277 JB |
1065 | if (*cp == '.' && cp[1] == 0) |
1066 | { | |
1067 | cp[1] = '0'; | |
1068 | cp[2] = 0; | |
99027bdd | 1069 | len++; |
c7b14277 | 1070 | } |
75b43359 | 1071 | else if (*cp == 0) |
c7b14277 JB |
1072 | { |
1073 | *cp++ = '.'; | |
1074 | *cp++ = '0'; | |
1075 | *cp++ = 0; | |
99027bdd | 1076 | len += 2; |
c7b14277 | 1077 | } |
edb2a707 | 1078 | } |
99027bdd PE |
1079 | |
1080 | return len; | |
38010d50 | 1081 | } |
cc94f3b2 | 1082 | |
38010d50 JB |
1083 | \f |
1084 | static void | |
0bce5d9e | 1085 | print (Lisp_Object obj, Lisp_Object printcharfun, bool escapeflag) |
38010d50 | 1086 | { |
a22dec27 | 1087 | new_backquote_output = 0; |
38010d50 | 1088 | |
0f25ecc6 RS |
1089 | /* Reset print_number_index and Vprint_number_table only when |
1090 | the variable Vprint_continuous_numbering is nil. Otherwise, | |
1091 | the values of these variables will be kept between several | |
1092 | print functions. */ | |
e026eb89 KS |
1093 | if (NILP (Vprint_continuous_numbering) |
1094 | || NILP (Vprint_number_table)) | |
0f25ecc6 RS |
1095 | { |
1096 | print_number_index = 0; | |
1097 | Vprint_number_table = Qnil; | |
1098 | } | |
38010d50 | 1099 | |
0f25ecc6 RS |
1100 | /* Construct Vprint_number_table for print-gensym and print-circle. */ |
1101 | if (!NILP (Vprint_gensym) || !NILP (Vprint_circle)) | |
ec838c39 | 1102 | { |
e6d4cddd RS |
1103 | /* Construct Vprint_number_table. |
1104 | This increments print_number_index for the objects added. */ | |
9a6a4c40 | 1105 | print_depth = 0; |
0f25ecc6 | 1106 | print_preprocess (obj); |
e6d4cddd | 1107 | |
a65b85b5 SM |
1108 | if (HASH_TABLE_P (Vprint_number_table)) |
1109 | { /* Remove unnecessary objects, which appear only once in OBJ; | |
a179e3f7 | 1110 | that is, whose status is Qt. */ |
a65b85b5 | 1111 | struct Lisp_Hash_Table *h = XHASH_TABLE (Vprint_number_table); |
d311d28c | 1112 | ptrdiff_t i; |
e6d4cddd | 1113 | |
a65b85b5 SM |
1114 | for (i = 0; i < HASH_TABLE_SIZE (h); ++i) |
1115 | if (!NILP (HASH_HASH (h, i)) | |
1116 | && EQ (HASH_VALUE (h, i), Qt)) | |
1117 | Fremhash (HASH_KEY (h, i), Vprint_number_table); | |
1118 | } | |
0f25ecc6 RS |
1119 | } |
1120 | ||
9a6a4c40 | 1121 | print_depth = 0; |
0f25ecc6 RS |
1122 | print_object (obj, printcharfun, escapeflag); |
1123 | } | |
1124 | ||
fb103ca9 SM |
1125 | #define PRINT_CIRCLE_CANDIDATE_P(obj) \ |
1126 | (STRINGP (obj) || CONSP (obj) \ | |
1127 | || (VECTORLIKEP (obj) \ | |
1128 | && (VECTORP (obj) || COMPILEDP (obj) \ | |
1129 | || CHAR_TABLE_P (obj) || SUB_CHAR_TABLE_P (obj) \ | |
1130 | || HASH_TABLE_P (obj) || FONTP (obj))) \ | |
1131 | || (! NILP (Vprint_gensym) \ | |
1132 | && SYMBOLP (obj) \ | |
1133 | && !SYMBOL_INTERNED_P (obj))) | |
1134 | ||
0f25ecc6 RS |
1135 | /* Construct Vprint_number_table according to the structure of OBJ. |
1136 | OBJ itself and all its elements will be added to Vprint_number_table | |
1137 | recursively if it is a list, vector, compiled function, char-table, | |
1138 | string (its text properties will be traced), or a symbol that has | |
1139 | no obarray (this is for the print-gensym feature). | |
1140 | The status fields of Vprint_number_table mean whether each object appears | |
f224e500 | 1141 | more than once in OBJ: Qnil at the first time, and Qt after that. */ |
0f25ecc6 | 1142 | static void |
971de7fb | 1143 | print_preprocess (Lisp_Object obj) |
0f25ecc6 | 1144 | { |
6b61353c | 1145 | int i; |
d311d28c | 1146 | ptrdiff_t size; |
c1132671 RS |
1147 | int loop_count = 0; |
1148 | Lisp_Object halftail; | |
1149 | ||
1150 | /* Avoid infinite recursion for circular nested structure | |
1151 | in the case where Vprint_circle is nil. */ | |
1152 | if (NILP (Vprint_circle)) | |
1153 | { | |
4ae29f89 SM |
1154 | /* Give up if we go so deep that print_object will get an error. */ |
1155 | /* See similar code in print_object. */ | |
1156 | if (print_depth >= PRINT_CIRCLE) | |
1157 | error ("Apparently circular structure being printed"); | |
1158 | ||
c1132671 RS |
1159 | for (i = 0; i < print_depth; i++) |
1160 | if (EQ (obj, being_printed[i])) | |
1161 | return; | |
1162 | being_printed[print_depth] = obj; | |
1163 | } | |
1164 | ||
c1132671 RS |
1165 | print_depth++; |
1166 | halftail = obj; | |
0f25ecc6 RS |
1167 | |
1168 | loop: | |
fb103ca9 | 1169 | if (PRINT_CIRCLE_CANDIDATE_P (obj)) |
0f25ecc6 | 1170 | { |
a65b85b5 SM |
1171 | if (!HASH_TABLE_P (Vprint_number_table)) |
1172 | { | |
1173 | Lisp_Object args[2]; | |
1174 | args[0] = QCtest; | |
1175 | args[1] = Qeq; | |
1176 | Vprint_number_table = Fmake_hash_table (2, args); | |
1177 | } | |
1178 | ||
aca2020b KH |
1179 | /* In case print-circle is nil and print-gensym is t, |
1180 | add OBJ to Vprint_number_table only when OBJ is a symbol. */ | |
1181 | if (! NILP (Vprint_circle) || SYMBOLP (obj)) | |
0f25ecc6 | 1182 | { |
a65b85b5 SM |
1183 | Lisp_Object num = Fgethash (obj, Vprint_number_table, Qnil); |
1184 | if (!NILP (num) | |
1185 | /* If Vprint_continuous_numbering is non-nil and OBJ is a gensym, | |
1186 | always print the gensym with a number. This is a special for | |
1187 | the lisp function byte-compile-output-docform. */ | |
1188 | || (!NILP (Vprint_continuous_numbering) | |
1189 | && SYMBOLP (obj) | |
1190 | && !SYMBOL_INTERNED_P (obj))) | |
1191 | { /* OBJ appears more than once. Let's remember that. */ | |
17870c01 | 1192 | if (!INTEGERP (num)) |
aca2020b | 1193 | { |
a65b85b5 SM |
1194 | print_number_index++; |
1195 | /* Negative number indicates it hasn't been printed yet. */ | |
1196 | Fputhash (obj, make_number (- print_number_index), | |
1197 | Vprint_number_table); | |
aca2020b | 1198 | } |
a65b85b5 SM |
1199 | print_depth--; |
1200 | return; | |
0f25ecc6 | 1201 | } |
a65b85b5 SM |
1202 | else |
1203 | /* OBJ is not yet recorded. Let's add to the table. */ | |
1204 | Fputhash (obj, Qt, Vprint_number_table); | |
0f25ecc6 | 1205 | } |
0f25ecc6 | 1206 | |
8e50cc2d | 1207 | switch (XTYPE (obj)) |
0f25ecc6 RS |
1208 | { |
1209 | case Lisp_String: | |
0f25ecc6 | 1210 | /* A string may have text properties, which can be circular. */ |
0c94c8d6 | 1211 | traverse_intervals_noorder (string_intervals (obj), |
8bbfc258 | 1212 | print_preprocess_string, Qnil); |
0f25ecc6 RS |
1213 | break; |
1214 | ||
1215 | case Lisp_Cons: | |
c1132671 RS |
1216 | /* Use HALFTAIL and LOOP_COUNT to detect circular lists, |
1217 | just as in print_object. */ | |
1218 | if (loop_count && EQ (obj, halftail)) | |
1219 | break; | |
0f25ecc6 RS |
1220 | print_preprocess (XCAR (obj)); |
1221 | obj = XCDR (obj); | |
c1132671 RS |
1222 | loop_count++; |
1223 | if (!(loop_count & 1)) | |
1224 | halftail = XCDR (halftail); | |
0f25ecc6 RS |
1225 | goto loop; |
1226 | ||
1227 | case Lisp_Vectorlike: | |
77b37c05 | 1228 | size = ASIZE (obj); |
6b61353c KH |
1229 | if (size & PSEUDOVECTOR_FLAG) |
1230 | size &= PSEUDOVECTOR_SIZE_MASK; | |
0f25ecc6 | 1231 | for (i = 0; i < size; i++) |
28be1ada | 1232 | print_preprocess (AREF (obj, i)); |
3e0de07f SM |
1233 | if (HASH_TABLE_P (obj)) |
1234 | { /* For hash tables, the key_and_value slot is past | |
a65b85b5 SM |
1235 | `size' because it needs to be marked specially in case |
1236 | the table is weak. */ | |
3e0de07f SM |
1237 | struct Lisp_Hash_Table *h = XHASH_TABLE (obj); |
1238 | print_preprocess (h->key_and_value); | |
1239 | } | |
ee5263af GM |
1240 | break; |
1241 | ||
1242 | default: | |
1243 | break; | |
0f25ecc6 RS |
1244 | } |
1245 | } | |
c1132671 | 1246 | print_depth--; |
0f25ecc6 RS |
1247 | } |
1248 | ||
0f25ecc6 | 1249 | static void |
971de7fb | 1250 | print_preprocess_string (INTERVAL interval, Lisp_Object arg) |
0f25ecc6 RS |
1251 | { |
1252 | print_preprocess (interval->plist); | |
1253 | } | |
0f25ecc6 | 1254 | |
971de7fb | 1255 | static void print_check_string_charset_prop (INTERVAL interval, Lisp_Object string); |
71ea13cb KH |
1256 | |
1257 | #define PRINT_STRING_NON_CHARSET_FOUND 1 | |
1258 | #define PRINT_STRING_UNSAFE_CHARSET_FOUND 2 | |
1259 | ||
4ae29f89 | 1260 | /* Bitwise or of the above macros. */ |
71ea13cb KH |
1261 | static int print_check_string_result; |
1262 | ||
1263 | static void | |
971de7fb | 1264 | print_check_string_charset_prop (INTERVAL interval, Lisp_Object string) |
71ea13cb KH |
1265 | { |
1266 | Lisp_Object val; | |
1267 | ||
1268 | if (NILP (interval->plist) | |
1269 | || (print_check_string_result == (PRINT_STRING_NON_CHARSET_FOUND | |
1270 | | PRINT_STRING_UNSAFE_CHARSET_FOUND))) | |
1271 | return; | |
1272 | for (val = interval->plist; CONSP (val) && ! EQ (XCAR (val), Qcharset); | |
1273 | val = XCDR (XCDR (val))); | |
1274 | if (! CONSP (val)) | |
1275 | { | |
1276 | print_check_string_result |= PRINT_STRING_NON_CHARSET_FOUND; | |
1277 | return; | |
1278 | } | |
1279 | if (! (print_check_string_result & PRINT_STRING_NON_CHARSET_FOUND)) | |
1280 | { | |
1281 | if (! EQ (val, interval->plist) | |
1282 | || CONSP (XCDR (XCDR (val)))) | |
1283 | print_check_string_result |= PRINT_STRING_NON_CHARSET_FOUND; | |
1284 | } | |
1285 | if (NILP (Vprint_charset_text_property) | |
1286 | || ! (print_check_string_result & PRINT_STRING_UNSAFE_CHARSET_FOUND)) | |
1287 | { | |
1288 | int i, c; | |
d311d28c PE |
1289 | ptrdiff_t charpos = interval->position; |
1290 | ptrdiff_t bytepos = string_char_to_byte (string, charpos); | |
71ea13cb KH |
1291 | Lisp_Object charset; |
1292 | ||
1293 | charset = XCAR (XCDR (val)); | |
1294 | for (i = 0; i < LENGTH (interval); i++) | |
1295 | { | |
1296 | FETCH_STRING_CHAR_ADVANCE (c, string, charpos, bytepos); | |
c80bcdbc KH |
1297 | if (! ASCII_CHAR_P (c) |
1298 | && ! EQ (CHARSET_NAME (CHAR_CHARSET (c)), charset)) | |
71ea13cb KH |
1299 | { |
1300 | print_check_string_result |= PRINT_STRING_UNSAFE_CHARSET_FOUND; | |
1301 | break; | |
1302 | } | |
1303 | } | |
1304 | } | |
1305 | } | |
1306 | ||
1307 | /* The value is (charset . nil). */ | |
1308 | static Lisp_Object print_prune_charset_plist; | |
1309 | ||
1310 | static Lisp_Object | |
971de7fb | 1311 | print_prune_string_charset (Lisp_Object string) |
71ea13cb KH |
1312 | { |
1313 | print_check_string_result = 0; | |
0c94c8d6 | 1314 | traverse_intervals (string_intervals (string), 0, |
71ea13cb KH |
1315 | print_check_string_charset_prop, string); |
1316 | if (! (print_check_string_result & PRINT_STRING_UNSAFE_CHARSET_FOUND)) | |
1317 | { | |
1318 | string = Fcopy_sequence (string); | |
1319 | if (print_check_string_result & PRINT_STRING_NON_CHARSET_FOUND) | |
1320 | { | |
1321 | if (NILP (print_prune_charset_plist)) | |
6c6f1994 | 1322 | print_prune_charset_plist = list1 (Qcharset); |
eabe04c0 KH |
1323 | Fremove_text_properties (make_number (0), |
1324 | make_number (SCHARS (string)), | |
71ea13cb KH |
1325 | print_prune_charset_plist, string); |
1326 | } | |
1327 | else | |
eabe04c0 KH |
1328 | Fset_text_properties (make_number (0), make_number (SCHARS (string)), |
1329 | Qnil, string); | |
71ea13cb KH |
1330 | } |
1331 | return string; | |
1332 | } | |
1333 | ||
0f25ecc6 | 1334 | static void |
0bce5d9e | 1335 | print_object (Lisp_Object obj, Lisp_Object printcharfun, bool escapeflag) |
0f25ecc6 | 1336 | { |
aca216ff PE |
1337 | char buf[max (sizeof "from..to..in " + 2 * INT_STRLEN_BOUND (EMACS_INT), |
1338 | max (sizeof " . #" + INT_STRLEN_BOUND (printmax_t), | |
1339 | 40))]; | |
0f25ecc6 RS |
1340 | |
1341 | QUIT; | |
1342 | ||
1343 | /* Detect circularities and truncate them. */ | |
4ae29f89 | 1344 | if (NILP (Vprint_circle)) |
0f25ecc6 | 1345 | { |
4ae29f89 SM |
1346 | /* Simple but incomplete way. */ |
1347 | int i; | |
1348 | ||
1349 | /* See similar code in print_preprocess. */ | |
1350 | if (print_depth >= PRINT_CIRCLE) | |
1351 | error ("Apparently circular structure being printed"); | |
1352 | ||
1353 | for (i = 0; i < print_depth; i++) | |
1354 | if (EQ (obj, being_printed[i])) | |
1355 | { | |
99027bdd PE |
1356 | int len = sprintf (buf, "#%d", i); |
1357 | strout (buf, len, len, printcharfun); | |
4ae29f89 SM |
1358 | return; |
1359 | } | |
1360 | being_printed[print_depth] = obj; | |
1361 | } | |
1362 | else if (PRINT_CIRCLE_CANDIDATE_P (obj)) | |
1363 | { | |
1364 | /* With the print-circle feature. */ | |
1365 | Lisp_Object num = Fgethash (obj, Vprint_number_table, Qnil); | |
1366 | if (INTEGERP (num)) | |
0f25ecc6 | 1367 | { |
4ae29f89 SM |
1368 | EMACS_INT n = XINT (num); |
1369 | if (n < 0) | |
1370 | { /* Add a prefix #n= if OBJ has not yet been printed; | |
1371 | that is, its status field is nil. */ | |
99027bdd PE |
1372 | int len = sprintf (buf, "#%"pI"d=", -n); |
1373 | strout (buf, len, len, printcharfun); | |
4ae29f89 SM |
1374 | /* OBJ is going to be printed. Remember that fact. */ |
1375 | Fputhash (obj, make_number (- n), Vprint_number_table); | |
1376 | } | |
1377 | else | |
a65b85b5 | 1378 | { |
4ae29f89 | 1379 | /* Just print #n# if OBJ has already been printed. */ |
99027bdd PE |
1380 | int len = sprintf (buf, "#%"pI"d#", n); |
1381 | strout (buf, len, len, printcharfun); | |
4ae29f89 | 1382 | return; |
a65b85b5 | 1383 | } |
0f25ecc6 | 1384 | } |
ec838c39 | 1385 | } |
ec838c39 | 1386 | |
38010d50 JB |
1387 | print_depth++; |
1388 | ||
8e50cc2d | 1389 | switch (XTYPE (obj)) |
38010d50 | 1390 | { |
2de9f71c | 1391 | case_Lisp_Int: |
99027bdd PE |
1392 | { |
1393 | int len = sprintf (buf, "%"pI"d", XINT (obj)); | |
1394 | strout (buf, len, len, printcharfun); | |
1395 | } | |
ca0569ad RS |
1396 | break; |
1397 | ||
ca0569ad RS |
1398 | case Lisp_Float: |
1399 | { | |
6e8e6bf2 | 1400 | char pigbuf[FLOAT_TO_STRING_BUFSIZE]; |
99027bdd PE |
1401 | int len = float_to_string (pigbuf, XFLOAT_DATA (obj)); |
1402 | strout (pigbuf, len, len, printcharfun); | |
ca0569ad RS |
1403 | } |
1404 | break; | |
ca0569ad RS |
1405 | |
1406 | case Lisp_String: | |
38010d50 JB |
1407 | if (!escapeflag) |
1408 | print_string (obj, printcharfun); | |
1409 | else | |
1410 | { | |
198af6df | 1411 | register ptrdiff_t i, i_byte; |
38010d50 | 1412 | struct gcpro gcpro1; |
d311d28c | 1413 | ptrdiff_t size_byte; |
453fa987 RS |
1414 | /* 1 means we must ensure that the next character we output |
1415 | cannot be taken as part of a hex character escape. */ | |
0bce5d9e | 1416 | bool need_nonhex = 0; |
0063fdb1 | 1417 | bool multibyte = STRING_MULTIBYTE (obj); |
38010d50 | 1418 | |
7651e1f5 RS |
1419 | GCPRO1 (obj); |
1420 | ||
71ea13cb KH |
1421 | if (! EQ (Vprint_charset_text_property, Qt)) |
1422 | obj = print_prune_string_charset (obj); | |
1423 | ||
0c94c8d6 | 1424 | if (string_intervals (obj)) |
7651e1f5 RS |
1425 | { |
1426 | PRINTCHAR ('#'); | |
1427 | PRINTCHAR ('('); | |
1428 | } | |
38010d50 JB |
1429 | |
1430 | PRINTCHAR ('\"'); | |
d5db4077 | 1431 | size_byte = SBYTES (obj); |
dc2a0b79 | 1432 | |
198af6df | 1433 | for (i = 0, i_byte = 0; i_byte < size_byte;) |
38010d50 | 1434 | { |
6ddd6eee RS |
1435 | /* Here, we must convert each multi-byte form to the |
1436 | corresponding character code before handing it to PRINTCHAR. */ | |
dc2a0b79 RS |
1437 | int c; |
1438 | ||
198af6df | 1439 | FETCH_STRING_CHAR_ADVANCE (c, obj, i, i_byte); |
dc2a0b79 | 1440 | |
38010d50 | 1441 | QUIT; |
6ddd6eee | 1442 | |
38010d50 JB |
1443 | if (c == '\n' && print_escape_newlines) |
1444 | { | |
1445 | PRINTCHAR ('\\'); | |
1446 | PRINTCHAR ('n'); | |
1447 | } | |
c6f7982f RM |
1448 | else if (c == '\f' && print_escape_newlines) |
1449 | { | |
1450 | PRINTCHAR ('\\'); | |
1451 | PRINTCHAR ('f'); | |
1452 | } | |
ae7367d3 | 1453 | else if (multibyte |
42a5b22f | 1454 | && (CHAR_BYTE8_P (c) |
73af357a | 1455 | || (! ASCII_CHAR_P (c) && print_escape_multibyte))) |
dc2a0b79 RS |
1456 | { |
1457 | /* When multibyte is disabled, | |
ae7367d3 RS |
1458 | print multibyte string chars using hex escapes. |
1459 | For a char code that could be in a unibyte string, | |
1460 | when found in a multibyte string, always use a hex escape | |
1461 | so it reads back as multibyte. */ | |
09125ef8 | 1462 | char outbuf[50]; |
99027bdd | 1463 | int len; |
8b4b4467 KH |
1464 | |
1465 | if (CHAR_BYTE8_P (c)) | |
99027bdd | 1466 | len = sprintf (outbuf, "\\%03o", CHAR_TO_BYTE8 (c)); |
8b4b4467 | 1467 | else |
8f924df7 | 1468 | { |
99027bdd | 1469 | len = sprintf (outbuf, "\\x%04x", c); |
8f924df7 KH |
1470 | need_nonhex = 1; |
1471 | } | |
99027bdd | 1472 | strout (outbuf, len, len, printcharfun); |
dc2a0b79 | 1473 | } |
db300f59 | 1474 | else if (! multibyte |
200fc949 | 1475 | && SINGLE_BYTE_CHAR_P (c) && ! ASCII_CHAR_P (c) |
835d0be6 | 1476 | && print_escape_nonascii) |
974a6ff5 | 1477 | { |
835d0be6 RS |
1478 | /* When printing in a multibyte buffer |
1479 | or when explicitly requested, | |
974a6ff5 KH |
1480 | print single-byte non-ASCII string chars |
1481 | using octal escapes. */ | |
09125ef8 | 1482 | char outbuf[5]; |
99027bdd PE |
1483 | int len = sprintf (outbuf, "\\%03o", c); |
1484 | strout (outbuf, len, len, printcharfun); | |
974a6ff5 | 1485 | } |
38010d50 JB |
1486 | else |
1487 | { | |
453fa987 RS |
1488 | /* If we just had a hex escape, and this character |
1489 | could be taken as part of it, | |
1490 | output `\ ' to prevent that. */ | |
1b62edd6 KH |
1491 | if (need_nonhex) |
1492 | { | |
1493 | need_nonhex = 0; | |
1494 | if ((c >= 'a' && c <= 'f') | |
453fa987 | 1495 | || (c >= 'A' && c <= 'F') |
1b62edd6 | 1496 | || (c >= '0' && c <= '9')) |
1db5b1ad | 1497 | strout ("\\ ", -1, -1, printcharfun); |
1b62edd6 | 1498 | } |
453fa987 | 1499 | |
38010d50 JB |
1500 | if (c == '\"' || c == '\\') |
1501 | PRINTCHAR ('\\'); | |
1502 | PRINTCHAR (c); | |
1503 | } | |
1504 | } | |
1505 | PRINTCHAR ('\"'); | |
7651e1f5 | 1506 | |
0c94c8d6 | 1507 | if (string_intervals (obj)) |
7651e1f5 | 1508 | { |
0c94c8d6 | 1509 | traverse_intervals (string_intervals (obj), |
8bbfc258 | 1510 | 0, print_interval, printcharfun); |
7651e1f5 RS |
1511 | PRINTCHAR (')'); |
1512 | } | |
7651e1f5 | 1513 | |
38010d50 JB |
1514 | UNGCPRO; |
1515 | } | |
ca0569ad | 1516 | break; |
38010d50 | 1517 | |
ca0569ad RS |
1518 | case Lisp_Symbol: |
1519 | { | |
0bce5d9e PE |
1520 | bool confusing; |
1521 | unsigned char *p = SDATA (SYMBOL_NAME (obj)); | |
1522 | unsigned char *end = p + SBYTES (SYMBOL_NAME (obj)); | |
1523 | int c; | |
d311d28c PE |
1524 | ptrdiff_t i, i_byte; |
1525 | ptrdiff_t size_byte; | |
dc2a0b79 RS |
1526 | Lisp_Object name; |
1527 | ||
76d0b3ae | 1528 | name = SYMBOL_NAME (obj); |
ca0569ad RS |
1529 | |
1530 | if (p != end && (*p == '-' || *p == '+')) p++; | |
1531 | if (p == end) | |
1532 | confusing = 0; | |
d27497e3 RS |
1533 | /* If symbol name begins with a digit, and ends with a digit, |
1534 | and contains nothing but digits and `e', it could be treated | |
1535 | as a number. So set CONFUSING. | |
1536 | ||
1537 | Symbols that contain periods could also be taken as numbers, | |
1538 | but periods are always escaped, so we don't have to worry | |
1539 | about them here. */ | |
1540 | else if (*p >= '0' && *p <= '9' | |
1541 | && end[-1] >= '0' && end[-1] <= '9') | |
ca0569ad | 1542 | { |
e837058b RS |
1543 | while (p != end && ((*p >= '0' && *p <= '9') |
1544 | /* Needed for \2e10. */ | |
01a8d3fa | 1545 | || *p == 'e' || *p == 'E')) |
ca0569ad RS |
1546 | p++; |
1547 | confusing = (end == p); | |
1548 | } | |
d27497e3 RS |
1549 | else |
1550 | confusing = 0; | |
ca0569ad | 1551 | |
9a79b20c AS |
1552 | size_byte = SBYTES (name); |
1553 | ||
bf9f2aab | 1554 | if (! NILP (Vprint_gensym) && !SYMBOL_INTERNED_P (obj)) |
081e0581 | 1555 | { |
081e0581 EN |
1556 | PRINTCHAR ('#'); |
1557 | PRINTCHAR (':'); | |
1558 | } | |
9a79b20c AS |
1559 | else if (size_byte == 0) |
1560 | { | |
1561 | PRINTCHAR ('#'); | |
1562 | PRINTCHAR ('#'); | |
1563 | break; | |
1564 | } | |
dc2a0b79 RS |
1565 | |
1566 | for (i = 0, i_byte = 0; i_byte < size_byte;) | |
ca0569ad | 1567 | { |
6ddd6eee RS |
1568 | /* Here, we must convert each multi-byte form to the |
1569 | corresponding character code before handing it to PRINTCHAR. */ | |
eba90784 | 1570 | FETCH_STRING_CHAR_ADVANCE (c, name, i, i_byte); |
ca0569ad | 1571 | QUIT; |
09eddb56 | 1572 | |
ca0569ad RS |
1573 | if (escapeflag) |
1574 | { | |
09eddb56 RS |
1575 | if (c == '\"' || c == '\\' || c == '\'' |
1576 | || c == ';' || c == '#' || c == '(' || c == ')' | |
9a79b20c | 1577 | || c == ',' || c == '.' || c == '`' |
09eddb56 RS |
1578 | || c == '[' || c == ']' || c == '?' || c <= 040 |
1579 | || confusing) | |
ca0569ad RS |
1580 | PRINTCHAR ('\\'), confusing = 0; |
1581 | } | |
1582 | PRINTCHAR (c); | |
1583 | } | |
1584 | } | |
1585 | break; | |
1586 | ||
1587 | case Lisp_Cons: | |
38010d50 | 1588 | /* If deeper than spec'd depth, print placeholder. */ |
d4ae1f7e | 1589 | if (INTEGERP (Vprint_level) |
38010d50 | 1590 | && print_depth > XINT (Vprint_level)) |
1db5b1ad | 1591 | strout ("...", -1, -1, printcharfun); |
2f100b5c EN |
1592 | else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj))) |
1593 | && (EQ (XCAR (obj), Qquote))) | |
1594 | { | |
1595 | PRINTCHAR ('\''); | |
0f25ecc6 | 1596 | print_object (XCAR (XCDR (obj)), printcharfun, escapeflag); |
2f100b5c EN |
1597 | } |
1598 | else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj))) | |
1599 | && (EQ (XCAR (obj), Qfunction))) | |
1600 | { | |
1601 | PRINTCHAR ('#'); | |
1602 | PRINTCHAR ('\''); | |
0f25ecc6 | 1603 | print_object (XCAR (XCDR (obj)), printcharfun, escapeflag); |
2f100b5c EN |
1604 | } |
1605 | else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj))) | |
a22dec27 SM |
1606 | && ((EQ (XCAR (obj), Qbackquote)))) |
1607 | { | |
1608 | print_object (XCAR (obj), printcharfun, 0); | |
1609 | new_backquote_output++; | |
1610 | print_object (XCAR (XCDR (obj)), printcharfun, escapeflag); | |
1611 | new_backquote_output--; | |
1612 | } | |
1613 | else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj))) | |
1614 | && new_backquote_output | |
2f100b5c EN |
1615 | && ((EQ (XCAR (obj), Qbackquote) |
1616 | || EQ (XCAR (obj), Qcomma) | |
1617 | || EQ (XCAR (obj), Qcomma_at) | |
1618 | || EQ (XCAR (obj), Qcomma_dot)))) | |
1619 | { | |
0f25ecc6 | 1620 | print_object (XCAR (obj), printcharfun, 0); |
a22dec27 | 1621 | new_backquote_output--; |
0f25ecc6 | 1622 | print_object (XCAR (XCDR (obj)), printcharfun, escapeflag); |
a22dec27 | 1623 | new_backquote_output++; |
2f100b5c | 1624 | } |
e0f93814 | 1625 | else |
38010d50 | 1626 | { |
e0f93814 | 1627 | PRINTCHAR ('('); |
177c0ea7 | 1628 | |
38010d50 | 1629 | { |
aca216ff | 1630 | printmax_t i, print_length; |
1eab22b5 | 1631 | Lisp_Object halftail = obj; |
e0f93814 | 1632 | |
9ab8560d | 1633 | /* Negative values of print-length are invalid in CL. |
42ac1ed4 GM |
1634 | Treat them like nil, as CMUCL does. */ |
1635 | if (NATNUMP (Vprint_length)) | |
1636 | print_length = XFASTINT (Vprint_length); | |
1637 | else | |
aca216ff | 1638 | print_length = TYPE_MAXIMUM (printmax_t); |
42ac1ed4 GM |
1639 | |
1640 | i = 0; | |
e0f93814 | 1641 | while (CONSP (obj)) |
38010d50 | 1642 | { |
1eab22b5 | 1643 | /* Detect circular list. */ |
0f25ecc6 | 1644 | if (NILP (Vprint_circle)) |
1eab22b5 | 1645 | { |
53964682 | 1646 | /* Simple but incomplete way. */ |
0f25ecc6 RS |
1647 | if (i != 0 && EQ (obj, halftail)) |
1648 | { | |
99027bdd PE |
1649 | int len = sprintf (buf, " . #%"pMd, i / 2); |
1650 | strout (buf, len, len, printcharfun); | |
0f25ecc6 RS |
1651 | goto end_of_list; |
1652 | } | |
1653 | } | |
1654 | else | |
1655 | { | |
1656 | /* With the print-circle feature. */ | |
1657 | if (i != 0) | |
1658 | { | |
a65b85b5 SM |
1659 | Lisp_Object num = Fgethash (obj, Vprint_number_table, Qnil); |
1660 | if (INTEGERP (num)) | |
36de6a04 | 1661 | { |
1db5b1ad | 1662 | strout (" . ", 3, 3, printcharfun); |
36de6a04 AS |
1663 | print_object (obj, printcharfun, escapeflag); |
1664 | goto end_of_list; | |
1665 | } | |
0f25ecc6 | 1666 | } |
1eab22b5 | 1667 | } |
177c0ea7 | 1668 | |
aca216ff | 1669 | if (i) |
e0f93814 | 1670 | PRINTCHAR (' '); |
177c0ea7 | 1671 | |
aca216ff | 1672 | if (print_length <= i) |
e0f93814 | 1673 | { |
1db5b1ad | 1674 | strout ("...", 3, 3, printcharfun); |
0f25ecc6 | 1675 | goto end_of_list; |
e0f93814 | 1676 | } |
177c0ea7 | 1677 | |
aca216ff | 1678 | i++; |
0f25ecc6 | 1679 | print_object (XCAR (obj), printcharfun, escapeflag); |
177c0ea7 | 1680 | |
2f100b5c | 1681 | obj = XCDR (obj); |
1eab22b5 RS |
1682 | if (!(i & 1)) |
1683 | halftail = XCDR (halftail); | |
38010d50 | 1684 | } |
38010d50 | 1685 | } |
42ac1ed4 GM |
1686 | |
1687 | /* OBJ non-nil here means it's the end of a dotted list. */ | |
2f100b5c | 1688 | if (!NILP (obj)) |
e0f93814 | 1689 | { |
1db5b1ad | 1690 | strout (" . ", 3, 3, printcharfun); |
0f25ecc6 | 1691 | print_object (obj, printcharfun, escapeflag); |
e0f93814 | 1692 | } |
177c0ea7 | 1693 | |
0f25ecc6 | 1694 | end_of_list: |
e0f93814 | 1695 | PRINTCHAR (')'); |
38010d50 | 1696 | } |
ca0569ad RS |
1697 | break; |
1698 | ||
1699 | case Lisp_Vectorlike: | |
1700 | if (PROCESSP (obj)) | |
1701 | { | |
1702 | if (escapeflag) | |
1703 | { | |
1db5b1ad | 1704 | strout ("#<process ", -1, -1, printcharfun); |
4d2b044c | 1705 | print_string (XPROCESS (obj)->name, printcharfun); |
ca0569ad RS |
1706 | PRINTCHAR ('>'); |
1707 | } | |
1708 | else | |
4d2b044c | 1709 | print_string (XPROCESS (obj)->name, printcharfun); |
ca0569ad | 1710 | } |
ed2c35ef RS |
1711 | else if (BOOL_VECTOR_P (obj)) |
1712 | { | |
29ebea3b | 1713 | ptrdiff_t i; |
99027bdd PE |
1714 | int len; |
1715 | unsigned char c; | |
ed2c35ef | 1716 | struct gcpro gcpro1; |
1c0a7493 | 1717 | EMACS_INT size = bool_vector_size (obj); |
2cf00efc | 1718 | ptrdiff_t size_in_chars = bool_vector_bytes (size); |
5e15c624 | 1719 | ptrdiff_t real_size_in_chars = size_in_chars; |
ed2c35ef RS |
1720 | GCPRO1 (obj); |
1721 | ||
1722 | PRINTCHAR ('#'); | |
1723 | PRINTCHAR ('&'); | |
1c0a7493 | 1724 | len = sprintf (buf, "%"pI"d", size); |
99027bdd | 1725 | strout (buf, len, len, printcharfun); |
ed2c35ef | 1726 | PRINTCHAR ('\"'); |
a40384bc | 1727 | |
42ac1ed4 | 1728 | /* Don't print more characters than the specified maximum. |
9ab8560d | 1729 | Negative values of print-length are invalid. Treat them |
42ac1ed4 GM |
1730 | like a print-length of nil. */ |
1731 | if (NATNUMP (Vprint_length) | |
1732 | && XFASTINT (Vprint_length) < size_in_chars) | |
1733 | size_in_chars = XFASTINT (Vprint_length); | |
a40384bc | 1734 | |
ed2c35ef RS |
1735 | for (i = 0; i < size_in_chars; i++) |
1736 | { | |
1737 | QUIT; | |
df5b4930 | 1738 | c = bool_vector_uchar_data (obj)[i]; |
f10fdbfd | 1739 | if (c == '\n' && print_escape_newlines) |
ed2c35ef RS |
1740 | { |
1741 | PRINTCHAR ('\\'); | |
1742 | PRINTCHAR ('n'); | |
1743 | } | |
1744 | else if (c == '\f' && print_escape_newlines) | |
1745 | { | |
1746 | PRINTCHAR ('\\'); | |
1747 | PRINTCHAR ('f'); | |
1748 | } | |
4b5af5e4 AS |
1749 | else if (c > '\177') |
1750 | { | |
1751 | /* Use octal escapes to avoid encoding issues. */ | |
1752 | PRINTCHAR ('\\'); | |
1753 | PRINTCHAR ('0' + ((c >> 6) & 3)); | |
1754 | PRINTCHAR ('0' + ((c >> 3) & 7)); | |
1755 | PRINTCHAR ('0' + (c & 7)); | |
1756 | } | |
ed2c35ef RS |
1757 | else |
1758 | { | |
1759 | if (c == '\"' || c == '\\') | |
1760 | PRINTCHAR ('\\'); | |
1761 | PRINTCHAR (c); | |
1762 | } | |
1763 | } | |
5e15c624 PE |
1764 | |
1765 | if (size_in_chars < real_size_in_chars) | |
1766 | strout (" ...", 4, 4, printcharfun); | |
ed2c35ef RS |
1767 | PRINTCHAR ('\"'); |
1768 | ||
1769 | UNGCPRO; | |
1770 | } | |
ca0569ad RS |
1771 | else if (WINDOWP (obj)) |
1772 | { | |
880e6158 MR |
1773 | int len; |
1774 | strout ("#<window ", -1, -1, printcharfun); | |
1775 | len = sprintf (buf, "%d", XWINDOW (obj)->sequence_number); | |
99027bdd | 1776 | strout (buf, len, len, printcharfun); |
e74aeda8 | 1777 | if (BUFFERP (XWINDOW (obj)->contents)) |
ca0569ad | 1778 | { |
1db5b1ad | 1779 | strout (" on ", -1, -1, printcharfun); |
e74aeda8 | 1780 | print_string (BVAR (XBUFFER (XWINDOW (obj)->contents), name), |
3a45383a | 1781 | printcharfun); |
ca0569ad RS |
1782 | } |
1783 | PRINTCHAR ('>'); | |
1784 | } | |
f76c8b1e SM |
1785 | else if (TERMINALP (obj)) |
1786 | { | |
99027bdd | 1787 | int len; |
f76c8b1e | 1788 | struct terminal *t = XTERMINAL (obj); |
1db5b1ad | 1789 | strout ("#<terminal ", -1, -1, printcharfun); |
99027bdd PE |
1790 | len = sprintf (buf, "%d", t->id); |
1791 | strout (buf, len, len, printcharfun); | |
f76c8b1e SM |
1792 | if (t->name) |
1793 | { | |
1db5b1ad JB |
1794 | strout (" on ", -1, -1, printcharfun); |
1795 | strout (t->name, -1, -1, printcharfun); | |
f76c8b1e SM |
1796 | } |
1797 | PRINTCHAR ('>'); | |
1798 | } | |
7eb03302 GM |
1799 | else if (HASH_TABLE_P (obj)) |
1800 | { | |
1801 | struct Lisp_Hash_Table *h = XHASH_TABLE (obj); | |
d311d28c PE |
1802 | ptrdiff_t i; |
1803 | ptrdiff_t real_size, size; | |
99027bdd | 1804 | int len; |
f19a0f5b | 1805 | #if 0 |
29abe551 | 1806 | void *ptr = h; |
1db5b1ad | 1807 | strout ("#<hash-table", -1, -1, printcharfun); |
7eb03302 GM |
1808 | if (SYMBOLP (h->test)) |
1809 | { | |
1810 | PRINTCHAR (' '); | |
1811 | PRINTCHAR ('\''); | |
1db5b1ad | 1812 | strout (SDATA (SYMBOL_NAME (h->test)), -1, -1, printcharfun); |
7eb03302 | 1813 | PRINTCHAR (' '); |
1db5b1ad | 1814 | strout (SDATA (SYMBOL_NAME (h->weak)), -1, -1, printcharfun); |
7eb03302 | 1815 | PRINTCHAR (' '); |
99027bdd PE |
1816 | len = sprintf (buf, "%"pD"d/%"pD"d", h->count, ASIZE (h->next)); |
1817 | strout (buf, len, len, printcharfun); | |
7eb03302 | 1818 | } |
29abe551 | 1819 | len = sprintf (buf, " %p>", ptr); |
99027bdd | 1820 | strout (buf, len, len, printcharfun); |
f19a0f5b TZ |
1821 | #endif |
1822 | /* Implement a readable output, e.g.: | |
1823 | #s(hash-table size 2 test equal data (k1 v1 k2 v2)) */ | |
b7432bb2 | 1824 | /* Always print the size. */ |
99027bdd PE |
1825 | len = sprintf (buf, "#s(hash-table size %"pD"d", ASIZE (h->next)); |
1826 | strout (buf, len, len, printcharfun); | |
f19a0f5b | 1827 | |
b7432bb2 | 1828 | if (!NILP (h->test.name)) |
f19a0f5b | 1829 | { |
1db5b1ad | 1830 | strout (" test ", -1, -1, printcharfun); |
b7432bb2 | 1831 | print_object (h->test.name, printcharfun, escapeflag); |
f19a0f5b TZ |
1832 | } |
1833 | ||
1834 | if (!NILP (h->weak)) | |
1835 | { | |
1db5b1ad | 1836 | strout (" weakness ", -1, -1, printcharfun); |
617a0e83 | 1837 | print_object (h->weak, printcharfun, escapeflag); |
f19a0f5b TZ |
1838 | } |
1839 | ||
1840 | if (!NILP (h->rehash_size)) | |
1841 | { | |
1db5b1ad | 1842 | strout (" rehash-size ", -1, -1, printcharfun); |
617a0e83 | 1843 | print_object (h->rehash_size, printcharfun, escapeflag); |
f19a0f5b TZ |
1844 | } |
1845 | ||
1846 | if (!NILP (h->rehash_threshold)) | |
1847 | { | |
1db5b1ad | 1848 | strout (" rehash-threshold ", -1, -1, printcharfun); |
617a0e83 | 1849 | print_object (h->rehash_threshold, printcharfun, escapeflag); |
f19a0f5b TZ |
1850 | } |
1851 | ||
1db5b1ad | 1852 | strout (" data ", -1, -1, printcharfun); |
f19a0f5b TZ |
1853 | |
1854 | /* Print the data here as a plist. */ | |
b0ca0f33 DN |
1855 | real_size = HASH_TABLE_SIZE (h); |
1856 | size = real_size; | |
f19a0f5b TZ |
1857 | |
1858 | /* Don't print more elements than the specified maximum. */ | |
1859 | if (NATNUMP (Vprint_length) | |
1860 | && XFASTINT (Vprint_length) < size) | |
1861 | size = XFASTINT (Vprint_length); | |
42a5b22f | 1862 | |
f19a0f5b TZ |
1863 | PRINTCHAR ('('); |
1864 | for (i = 0; i < size; i++) | |
1865 | if (!NILP (HASH_HASH (h, i))) | |
1866 | { | |
1867 | if (i) PRINTCHAR (' '); | |
617a0e83 | 1868 | print_object (HASH_KEY (h, i), printcharfun, escapeflag); |
f19a0f5b | 1869 | PRINTCHAR (' '); |
617a0e83 | 1870 | print_object (HASH_VALUE (h, i), printcharfun, escapeflag); |
f19a0f5b TZ |
1871 | } |
1872 | ||
1873 | if (size < real_size) | |
1db5b1ad | 1874 | strout (" ...", 4, 4, printcharfun); |
f19a0f5b TZ |
1875 | |
1876 | PRINTCHAR (')'); | |
1877 | PRINTCHAR (')'); | |
1878 | ||
7eb03302 | 1879 | } |
908b0ae5 RS |
1880 | else if (BUFFERP (obj)) |
1881 | { | |
e578f381 | 1882 | if (!BUFFER_LIVE_P (XBUFFER (obj))) |
1db5b1ad | 1883 | strout ("#<killed buffer>", -1, -1, printcharfun); |
908b0ae5 RS |
1884 | else if (escapeflag) |
1885 | { | |
1db5b1ad | 1886 | strout ("#<buffer ", -1, -1, printcharfun); |
4b4deea2 | 1887 | print_string (BVAR (XBUFFER (obj), name), printcharfun); |
908b0ae5 RS |
1888 | PRINTCHAR ('>'); |
1889 | } | |
1890 | else | |
4b4deea2 | 1891 | print_string (BVAR (XBUFFER (obj), name), printcharfun); |
908b0ae5 | 1892 | } |
ca0569ad RS |
1893 | else if (WINDOW_CONFIGURATIONP (obj)) |
1894 | { | |
1db5b1ad | 1895 | strout ("#<window-configuration>", -1, -1, printcharfun); |
ca0569ad | 1896 | } |
ca0569ad RS |
1897 | else if (FRAMEP (obj)) |
1898 | { | |
99027bdd | 1899 | int len; |
29abe551 | 1900 | void *ptr = XFRAME (obj); |
e69b0960 | 1901 | Lisp_Object frame_name = XFRAME (obj)->name; |
436bc8e0 | 1902 | |
ca0569ad RS |
1903 | strout ((FRAME_LIVE_P (XFRAME (obj)) |
1904 | ? "#<frame " : "#<dead frame "), | |
1db5b1ad | 1905 | -1, -1, printcharfun); |
436bc8e0 EZ |
1906 | if (!STRINGP (frame_name)) |
1907 | { | |
1908 | /* A frame could be too young and have no name yet; | |
1909 | don't crash. */ | |
1910 | if (SYMBOLP (frame_name)) | |
1911 | frame_name = Fsymbol_name (frame_name); | |
1912 | else /* can't happen: name should be either nil or string */ | |
1913 | frame_name = build_string ("*INVALID*FRAME*NAME*"); | |
1914 | } | |
1915 | print_string (frame_name, printcharfun); | |
29abe551 | 1916 | len = sprintf (buf, " %p>", ptr); |
99027bdd | 1917 | strout (buf, len, len, printcharfun); |
ca0569ad | 1918 | } |
2a7b7982 KH |
1919 | else if (FONTP (obj)) |
1920 | { | |
d311d28c | 1921 | int i; |
2a7b7982 KH |
1922 | |
1923 | if (! FONT_OBJECT_P (obj)) | |
1924 | { | |
1925 | if (FONT_SPEC_P (obj)) | |
1db5b1ad | 1926 | strout ("#<font-spec", -1, -1, printcharfun); |
2a7b7982 | 1927 | else |
1db5b1ad | 1928 | strout ("#<font-entity", -1, -1, printcharfun); |
2a7b7982 KH |
1929 | for (i = 0; i < FONT_SPEC_MAX; i++) |
1930 | { | |
1931 | PRINTCHAR (' '); | |
1932 | if (i < FONT_WEIGHT_INDEX || i > FONT_WIDTH_INDEX) | |
1933 | print_object (AREF (obj, i), printcharfun, escapeflag); | |
1934 | else | |
1935 | print_object (font_style_symbolic (obj, i, 0), | |
1936 | printcharfun, escapeflag); | |
1937 | } | |
1938 | } | |
1939 | else | |
1940 | { | |
1db5b1ad | 1941 | strout ("#<font-object ", -1, -1, printcharfun); |
2a7b7982 KH |
1942 | print_object (AREF (obj, FONT_NAME_INDEX), printcharfun, |
1943 | escapeflag); | |
1944 | } | |
1945 | PRINTCHAR ('>'); | |
1946 | } | |
ca0569ad RS |
1947 | else |
1948 | { | |
d311d28c | 1949 | ptrdiff_t size = ASIZE (obj); |
ca0569ad RS |
1950 | if (COMPILEDP (obj)) |
1951 | { | |
1952 | PRINTCHAR ('#'); | |
1953 | size &= PSEUDOVECTOR_SIZE_MASK; | |
1954 | } | |
8b4b4467 | 1955 | if (CHAR_TABLE_P (obj) || SUB_CHAR_TABLE_P (obj)) |
ed2c35ef RS |
1956 | { |
1957 | /* We print a char-table as if it were a vector, | |
1958 | lumping the parent and default slots in with the | |
1959 | character slots. But we add #^ as a prefix. */ | |
223509a3 KH |
1960 | |
1961 | /* Make each lowest sub_char_table start a new line. | |
1962 | Otherwise we'll make a line extremely long, which | |
1963 | results in slow redisplay. */ | |
1964 | if (SUB_CHAR_TABLE_P (obj) | |
1965 | && XINT (XSUB_CHAR_TABLE (obj)->depth) == 3) | |
1966 | PRINTCHAR ('\n'); | |
ed2c35ef RS |
1967 | PRINTCHAR ('#'); |
1968 | PRINTCHAR ('^'); | |
3701b5de KH |
1969 | if (SUB_CHAR_TABLE_P (obj)) |
1970 | PRINTCHAR ('^'); | |
ed2c35ef RS |
1971 | size &= PSEUDOVECTOR_SIZE_MASK; |
1972 | } | |
00d76abc KH |
1973 | if (size & PSEUDOVECTOR_FLAG) |
1974 | goto badtype; | |
ca0569ad RS |
1975 | |
1976 | PRINTCHAR ('['); | |
38010d50 | 1977 | { |
ca0569ad RS |
1978 | register int i; |
1979 | register Lisp_Object tem; | |
d311d28c | 1980 | ptrdiff_t real_size = size; |
a40384bc RS |
1981 | |
1982 | /* Don't print more elements than the specified maximum. */ | |
42ac1ed4 GM |
1983 | if (NATNUMP (Vprint_length) |
1984 | && XFASTINT (Vprint_length) < size) | |
1985 | size = XFASTINT (Vprint_length); | |
a40384bc | 1986 | |
ca0569ad RS |
1987 | for (i = 0; i < size; i++) |
1988 | { | |
1989 | if (i) PRINTCHAR (' '); | |
28be1ada | 1990 | tem = AREF (obj, i); |
0f25ecc6 | 1991 | print_object (tem, printcharfun, escapeflag); |
ca0569ad | 1992 | } |
d6ac884e | 1993 | if (size < real_size) |
1db5b1ad | 1994 | strout (" ...", 4, 4, printcharfun); |
38010d50 | 1995 | } |
ca0569ad RS |
1996 | PRINTCHAR (']'); |
1997 | } | |
1998 | break; | |
1999 | ||
ca0569ad | 2000 | case Lisp_Misc: |
5db20f08 | 2001 | switch (XMISCTYPE (obj)) |
38010d50 | 2002 | { |
00d76abc | 2003 | case Lisp_Misc_Marker: |
1db5b1ad | 2004 | strout ("#<marker ", -1, -1, printcharfun); |
087e3c46 KH |
2005 | /* Do you think this is necessary? */ |
2006 | if (XMARKER (obj)->insertion_type != 0) | |
1db5b1ad | 2007 | strout ("(moves after insertion) ", -1, -1, printcharfun); |
cd3587c1 | 2008 | if (! XMARKER (obj)->buffer) |
1db5b1ad | 2009 | strout ("in no buffer", -1, -1, printcharfun); |
ca0569ad RS |
2010 | else |
2011 | { | |
99027bdd PE |
2012 | int len = sprintf (buf, "at %"pD"d", marker_position (obj)); |
2013 | strout (buf, len, len, printcharfun); | |
1db5b1ad | 2014 | strout (" in ", -1, -1, printcharfun); |
4b4deea2 | 2015 | print_string (BVAR (XMARKER (obj)->buffer, name), printcharfun); |
ca0569ad | 2016 | } |
38010d50 | 2017 | PRINTCHAR ('>'); |
908b0ae5 | 2018 | break; |
00d76abc KH |
2019 | |
2020 | case Lisp_Misc_Overlay: | |
1db5b1ad | 2021 | strout ("#<overlay ", -1, -1, printcharfun); |
cd3587c1 | 2022 | if (! XMARKER (OVERLAY_START (obj))->buffer) |
1db5b1ad | 2023 | strout ("in no buffer", -1, -1, printcharfun); |
ca0569ad RS |
2024 | else |
2025 | { | |
99027bdd PE |
2026 | int len = sprintf (buf, "from %"pD"d to %"pD"d in ", |
2027 | marker_position (OVERLAY_START (obj)), | |
2028 | marker_position (OVERLAY_END (obj))); | |
2029 | strout (buf, len, len, printcharfun); | |
4b4deea2 | 2030 | print_string (BVAR (XMARKER (OVERLAY_START (obj))->buffer, name), |
ca0569ad RS |
2031 | printcharfun); |
2032 | } | |
2033 | PRINTCHAR ('>'); | |
908b0ae5 | 2034 | break; |
00d76abc | 2035 | |
73ebd38f DA |
2036 | /* Remaining cases shouldn't happen in normal usage, but let's |
2037 | print them anyway for the benefit of the debugger. */ | |
2038 | ||
00d76abc | 2039 | case Lisp_Misc_Free: |
1db5b1ad | 2040 | strout ("#<misc free cell>", -1, -1, printcharfun); |
00d76abc KH |
2041 | break; |
2042 | ||
c069fee4 | 2043 | case Lisp_Misc_Save_Value: |
99027bdd | 2044 | { |
6cda572a DA |
2045 | int i; |
2046 | struct Lisp_Save_Value *v = XSAVE_VALUE (obj); | |
2047 | ||
2048 | strout ("#<save-value ", -1, -1, printcharfun); | |
73ebd38f | 2049 | |
7b1123d8 | 2050 | if (v->save_type == SAVE_TYPE_MEMORY) |
6cda572a | 2051 | { |
73ebd38f DA |
2052 | ptrdiff_t amount = v->data[1].integer; |
2053 | ||
2054 | #if GC_MARK_STACK | |
2055 | ||
7b1123d8 PE |
2056 | /* valid_lisp_object_p is reliable, so try to print up |
2057 | to 8 saved objects. This code is rarely used, so | |
2058 | it's OK that valid_lisp_object_p is slow. */ | |
6cda572a | 2059 | |
73ebd38f | 2060 | int limit = min (amount, 8); |
c50cf2ea | 2061 | Lisp_Object *area = v->data[0].pointer; |
73ebd38f DA |
2062 | |
2063 | i = sprintf (buf, "with %"pD"d objects", amount); | |
6cda572a DA |
2064 | strout (buf, i, i, printcharfun); |
2065 | ||
73ebd38f | 2066 | for (i = 0; i < limit; i++) |
6cda572a | 2067 | { |
73ebd38f | 2068 | Lisp_Object maybe = area[i]; |
6cda572a | 2069 | |
8855dfa5 | 2070 | if (valid_lisp_object_p (maybe) > 0) |
6cda572a DA |
2071 | { |
2072 | PRINTCHAR (' '); | |
2073 | print_object (maybe, printcharfun, escapeflag); | |
2074 | } | |
2075 | else | |
2076 | strout (" <invalid>", -1, -1, printcharfun); | |
2077 | } | |
73ebd38f | 2078 | if (i == limit && i < amount) |
6cda572a | 2079 | strout (" ...", 4, 4, printcharfun); |
73ebd38f DA |
2080 | |
2081 | #else /* not GC_MARK_STACK */ | |
2082 | ||
7b1123d8 PE |
2083 | /* There is no reliable way to determine whether the objects |
2084 | are initialized, so do not try to print them. */ | |
73ebd38f DA |
2085 | |
2086 | i = sprintf (buf, "with %"pD"d objects", amount); | |
2087 | strout (buf, i, i, printcharfun); | |
2088 | ||
2089 | #endif /* GC_MARK_STACK */ | |
6cda572a DA |
2090 | } |
2091 | else | |
2092 | { | |
7b1123d8 PE |
2093 | /* Print each slot according to its type. */ |
2094 | int index; | |
2095 | for (index = 0; index < SAVE_VALUE_SLOTS; index++) | |
2096 | { | |
2097 | if (index) | |
2098 | PRINTCHAR (' '); | |
73ebd38f | 2099 | |
7b1123d8 PE |
2100 | switch (save_type (v, index)) |
2101 | { | |
2102 | case SAVE_UNUSED: | |
2103 | i = sprintf (buf, "<unused>"); | |
2104 | break; | |
2105 | ||
2106 | case SAVE_POINTER: | |
2107 | i = sprintf (buf, "<pointer %p>", | |
2108 | v->data[index].pointer); | |
2109 | break; | |
2110 | ||
52a9bcae PE |
2111 | case SAVE_FUNCPOINTER: |
2112 | i = sprintf (buf, "<funcpointer %p>", | |
2113 | ((void *) (intptr_t) | |
2114 | v->data[index].funcpointer)); | |
2115 | break; | |
2116 | ||
7b1123d8 PE |
2117 | case SAVE_INTEGER: |
2118 | i = sprintf (buf, "<integer %"pD"d>", | |
2119 | v->data[index].integer); | |
2120 | break; | |
2121 | ||
2122 | case SAVE_OBJECT: | |
2123 | print_object (v->data[index].object, printcharfun, | |
2124 | escapeflag); | |
2125 | continue; | |
52a9bcae PE |
2126 | |
2127 | default: | |
2128 | emacs_abort (); | |
7b1123d8 | 2129 | } |
73ebd38f | 2130 | |
7b1123d8 PE |
2131 | strout (buf, i, i, printcharfun); |
2132 | } | |
6cda572a DA |
2133 | } |
2134 | PRINTCHAR ('>'); | |
99027bdd | 2135 | } |
c069fee4 KS |
2136 | break; |
2137 | ||
00d76abc KH |
2138 | default: |
2139 | goto badtype; | |
e0f93814 | 2140 | } |
00d76abc | 2141 | break; |
ca0569ad | 2142 | |
251d6798 BT |
2143 | case Lisp_Other: |
2144 | { | |
2145 | SCM port = scm_open_output_string (); | |
2146 | if (escapeflag) | |
2147 | scm_display (obj, port); | |
2148 | else | |
2149 | scm_write (obj, port); | |
2150 | strout (scm_to_locale_string (scm_get_output_string (port)), | |
2151 | -1, -1, printcharfun); | |
2152 | scm_close_port (port); | |
2153 | } | |
2154 | break; | |
2155 | ||
ca0569ad | 2156 | default: |
00d76abc | 2157 | badtype: |
ca0569ad | 2158 | { |
99027bdd | 2159 | int len; |
ca0569ad | 2160 | /* We're in trouble if this happens! |
1088b922 | 2161 | Probably should just emacs_abort (). */ |
1db5b1ad | 2162 | strout ("#<EMACS BUG: INVALID DATATYPE ", -1, -1, printcharfun); |
00d76abc | 2163 | if (MISCP (obj)) |
99027bdd | 2164 | len = sprintf (buf, "(MISC 0x%04x)", (int) XMISCTYPE (obj)); |
00d76abc | 2165 | else if (VECTORLIKEP (obj)) |
99027bdd | 2166 | len = sprintf (buf, "(PVEC 0x%08"pD"x)", ASIZE (obj)); |
00d76abc | 2167 | else |
99027bdd PE |
2168 | len = sprintf (buf, "(0x%02x)", (int) XTYPE (obj)); |
2169 | strout (buf, len, len, printcharfun); | |
ca0569ad | 2170 | strout (" Save your buffers immediately and please report this bug>", |
1db5b1ad | 2171 | -1, -1, printcharfun); |
ca0569ad | 2172 | } |
38010d50 JB |
2173 | } |
2174 | ||
2175 | print_depth--; | |
2176 | } | |
2177 | \f | |
7651e1f5 RS |
2178 | |
2179 | /* Print a description of INTERVAL using PRINTCHARFUN. | |
2180 | This is part of printing a string that has text properties. */ | |
2181 | ||
12fbe755 | 2182 | static void |
971de7fb | 2183 | print_interval (INTERVAL interval, Lisp_Object printcharfun) |
7651e1f5 | 2184 | { |
71ea13cb KH |
2185 | if (NILP (interval->plist)) |
2186 | return; | |
30503c0b | 2187 | PRINTCHAR (' '); |
0f25ecc6 | 2188 | print_object (make_number (interval->position), printcharfun, 1); |
7651e1f5 | 2189 | PRINTCHAR (' '); |
0f25ecc6 | 2190 | print_object (make_number (interval->position + LENGTH (interval)), |
cd3587c1 | 2191 | printcharfun, 1); |
7651e1f5 | 2192 | PRINTCHAR (' '); |
0f25ecc6 | 2193 | print_object (interval->plist, printcharfun, 1); |
7651e1f5 RS |
2194 | } |
2195 | ||
cf4bb06d DA |
2196 | /* Initialize debug_print stuff early to have it working from the very |
2197 | beginning. */ | |
2198 | ||
2199 | void | |
2200 | init_print_once (void) | |
2201 | { | |
2202 | DEFSYM (Qexternal_debugging_output, "external-debugging-output"); | |
62947569 | 2203 | defsubr ("external-debugging-output", gsubr_Fexternal_debugging_output, 1, 1, 0); |
cf4bb06d DA |
2204 | } |
2205 | ||
38010d50 | 2206 | void |
971de7fb | 2207 | syms_of_print (void) |
38010d50 | 2208 | { |
fe6aa7a1 BT |
2209 | #include "print.x" |
2210 | ||
cd3520a4 | 2211 | DEFSYM (Qtemp_buffer_setup_hook, "temp-buffer-setup-hook"); |
d9c21094 | 2212 | |
29208e82 | 2213 | DEFVAR_LISP ("standard-output", Vstandard_output, |
8c1a1077 PJ |
2214 | doc: /* Output stream `print' uses by default for outputting a character. |
2215 | This may be any function of one argument. | |
2216 | It may also be a buffer (output is inserted before point) | |
2217 | or a marker (output is inserted and the marker is advanced) | |
2218 | or the symbol t (output appears in the echo area). */); | |
38010d50 | 2219 | Vstandard_output = Qt; |
cd3520a4 | 2220 | DEFSYM (Qstandard_output, "standard-output"); |
38010d50 | 2221 | |
29208e82 | 2222 | DEFVAR_LISP ("float-output-format", Vfloat_output_format, |
8c1a1077 PJ |
2223 | doc: /* The format descriptor string used to print floats. |
2224 | This is a %-spec like those accepted by `printf' in C, | |
2225 | but with some restrictions. It must start with the two characters `%.'. | |
2226 | After that comes an integer precision specification, | |
2227 | and then a letter which controls the format. | |
2228 | The letters allowed are `e', `f' and `g'. | |
2229 | Use `e' for exponential notation \"DIG.DIGITSeEXPT\" | |
2230 | Use `f' for decimal point notation \"DIGITS.DIGITS\". | |
2231 | Use `g' to choose the shorter of those two formats for the number at hand. | |
2232 | The precision in any of these cases is the number of digits following | |
2233 | the decimal point. With `f', a precision of 0 means to omit the | |
2234 | decimal point. 0 is not allowed with `e' or `g'. | |
2235 | ||
2236 | A value of nil means to use the shortest notation | |
2237 | that represents the number without losing information. */); | |
38010d50 | 2238 | Vfloat_output_format = Qnil; |
cd3520a4 | 2239 | DEFSYM (Qfloat_output_format, "float-output-format"); |
38010d50 | 2240 | |
29208e82 | 2241 | DEFVAR_LISP ("print-length", Vprint_length, |
8c1a1077 PJ |
2242 | doc: /* Maximum length of list to print before abbreviating. |
2243 | A value of nil means no limit. See also `eval-expression-print-length'. */); | |
38010d50 JB |
2244 | Vprint_length = Qnil; |
2245 | ||
29208e82 | 2246 | DEFVAR_LISP ("print-level", Vprint_level, |
8c1a1077 PJ |
2247 | doc: /* Maximum depth of list nesting to print before abbreviating. |
2248 | A value of nil means no limit. See also `eval-expression-print-level'. */); | |
38010d50 JB |
2249 | Vprint_level = Qnil; |
2250 | ||
29208e82 | 2251 | DEFVAR_BOOL ("print-escape-newlines", print_escape_newlines, |
8c1a1077 PJ |
2252 | doc: /* Non-nil means print newlines in strings as `\\n'. |
2253 | Also print formfeeds as `\\f'. */); | |
38010d50 JB |
2254 | print_escape_newlines = 0; |
2255 | ||
29208e82 | 2256 | DEFVAR_BOOL ("print-escape-nonascii", print_escape_nonascii, |
8c1a1077 PJ |
2257 | doc: /* Non-nil means print unibyte non-ASCII chars in strings as \\OOO. |
2258 | \(OOO is the octal representation of the character code.) | |
249c0f71 RS |
2259 | Only single-byte characters are affected, and only in `prin1'. |
2260 | When the output goes in a multibyte buffer, this feature is | |
2261 | enabled regardless of the value of the variable. */); | |
38940e93 RS |
2262 | print_escape_nonascii = 0; |
2263 | ||
29208e82 | 2264 | DEFVAR_BOOL ("print-escape-multibyte", print_escape_multibyte, |
8c1a1077 PJ |
2265 | doc: /* Non-nil means print multibyte characters in strings as \\xXXXX. |
2266 | \(XXXX is the hex representation of the character code.) | |
2267 | This affects only `prin1'. */); | |
835d0be6 RS |
2268 | print_escape_multibyte = 0; |
2269 | ||
29208e82 | 2270 | DEFVAR_BOOL ("print-quoted", print_quoted, |
8c1a1077 | 2271 | doc: /* Non-nil means print quoted forms with reader syntax. |
db75cb5f | 2272 | I.e., (quote foo) prints as 'foo, (function foo) as #'foo. */); |
2f100b5c EN |
2273 | print_quoted = 0; |
2274 | ||
29208e82 | 2275 | DEFVAR_LISP ("print-gensym", Vprint_gensym, |
8c1a1077 PJ |
2276 | doc: /* Non-nil means print uninterned symbols so they will read as uninterned. |
2277 | I.e., the value of (make-symbol \"foobar\") prints as #:foobar. | |
2278 | When the uninterned symbol appears within a recursive data structure, | |
2279 | and the symbol appears more than once, in addition use the #N# and #N= | |
2280 | constructs as needed, so that multiple references to the same symbol are | |
2281 | shared once again when the text is read back. */); | |
e0f69431 RS |
2282 | Vprint_gensym = Qnil; |
2283 | ||
29208e82 | 2284 | DEFVAR_LISP ("print-circle", Vprint_circle, |
fb7ada5f | 2285 | doc: /* Non-nil means print recursive structures using #N= and #N# syntax. |
8c1a1077 PJ |
2286 | If nil, printing proceeds recursively and may lead to |
2287 | `max-lisp-eval-depth' being exceeded or an error may occur: | |
2288 | \"Apparently circular structure being printed.\" Also see | |
2289 | `print-length' and `print-level'. | |
2290 | If non-nil, shared substructures anywhere in the structure are printed | |
2291 | with `#N=' before the first occurrence (in the order of the print | |
2292 | representation) and `#N#' in place of each subsequent occurrence, | |
2293 | where N is a positive decimal integer. */); | |
0f25ecc6 RS |
2294 | Vprint_circle = Qnil; |
2295 | ||
29208e82 | 2296 | DEFVAR_LISP ("print-continuous-numbering", Vprint_continuous_numbering, |
fb7ada5f | 2297 | doc: /* Non-nil means number continuously across print calls. |
8c1a1077 PJ |
2298 | This affects the numbers printed for #N= labels and #M# references. |
2299 | See also `print-circle', `print-gensym', and `print-number-table'. | |
2300 | This variable should not be set with `setq'; bind it with a `let' instead. */); | |
0f25ecc6 RS |
2301 | Vprint_continuous_numbering = Qnil; |
2302 | ||
29208e82 | 2303 | DEFVAR_LISP ("print-number-table", Vprint_number_table, |
8c1a1077 PJ |
2304 | doc: /* A vector used internally to produce `#N=' labels and `#N#' references. |
2305 | The Lisp printer uses this vector to detect Lisp objects referenced more | |
e6d4cddd RS |
2306 | than once. |
2307 | ||
2308 | When you bind `print-continuous-numbering' to t, you should probably | |
2309 | also bind `print-number-table' to nil. This ensures that the value of | |
2310 | `print-number-table' can be garbage-collected once the printing is | |
2311 | done. If all elements of `print-number-table' are nil, it means that | |
2312 | the printing done so far has not found any shared structure or objects | |
2313 | that need to be recorded in the table. */); | |
0f25ecc6 | 2314 | Vprint_number_table = Qnil; |
081e0581 | 2315 | |
29208e82 | 2316 | DEFVAR_LISP ("print-charset-text-property", Vprint_charset_text_property, |
71ea13cb KH |
2317 | doc: /* A flag to control printing of `charset' text property on printing a string. |
2318 | The value must be nil, t, or `default'. | |
2319 | ||
2320 | If the value is nil, don't print the text property `charset'. | |
2321 | ||
2322 | If the value is t, always print the text property `charset'. | |
2323 | ||
2324 | If the value is `default', print the text property `charset' only when | |
2325 | the value is different from what is guessed in the current charset | |
dedbd91c | 2326 | priorities. */); |
71ea13cb KH |
2327 | Vprint_charset_text_property = Qdefault; |
2328 | ||
38010d50 JB |
2329 | /* prin1_to_string_buffer initialized in init_buffer_once in buffer.c */ |
2330 | staticpro (&Vprin1_to_string_buffer); | |
2331 | ||
cd3520a4 JB |
2332 | DEFSYM (Qprint_escape_newlines, "print-escape-newlines"); |
2333 | DEFSYM (Qprint_escape_multibyte, "print-escape-multibyte"); | |
2334 | DEFSYM (Qprint_escape_nonascii, "print-escape-nonascii"); | |
835d0be6 | 2335 | |
71ea13cb KH |
2336 | print_prune_charset_plist = Qnil; |
2337 | staticpro (&print_prune_charset_plist); | |
38010d50 | 2338 | } |