Commit | Line | Data |
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38010d50 | 1 | /* Lisp object printing and output streams. |
95df8112 | 2 | |
acaf905b | 3 | Copyright (C) 1985-1986, 1988, 1993-1995, 1997-2012 |
95df8112 | 4 | Free Software Foundation, Inc. |
38010d50 JB |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
9ec0b715 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
38010d50 | 9 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
38010d50 JB |
12 | |
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
38010d50 JB |
20 | |
21 | ||
18160b98 | 22 | #include <config.h> |
38010d50 | 23 | #include <stdio.h> |
d7306fe6 | 24 | #include <setjmp.h> |
38010d50 | 25 | #include "lisp.h" |
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 <math.h> |
f356c3fb | 49 | #include <float.h> |
fa2c4f56 | 50 | #include <ftoastr.h> |
f356c3fb PE |
51 | |
52 | /* Default to values appropriate for IEEE floating point. */ | |
f356c3fb PE |
53 | #ifndef DBL_DIG |
54 | #define DBL_DIG 15 | |
55 | #endif | |
f356c3fb | 56 | |
38010d50 | 57 | /* Avoid actual stack overflow in print. */ |
a8b7caa3 | 58 | static ptrdiff_t print_depth; |
38010d50 | 59 | |
a22dec27 | 60 | /* Level of nesting inside outputting backquote in new style. */ |
a8b7caa3 | 61 | static ptrdiff_t new_backquote_output; |
0330bb60 | 62 | |
ec838c39 RS |
63 | /* Detect most circularities to print finite output. */ |
64 | #define PRINT_CIRCLE 200 | |
ad64fc97 | 65 | static Lisp_Object being_printed[PRINT_CIRCLE]; |
ec838c39 | 66 | |
6fec5601 RS |
67 | /* When printing into a buffer, first we put the text in this |
68 | block, then insert it all at once. */ | |
ad64fc97 | 69 | static char *print_buffer; |
6fec5601 RS |
70 | |
71 | /* Size allocated in print_buffer. */ | |
d311d28c | 72 | static ptrdiff_t print_buffer_size; |
dc2a0b79 | 73 | /* Chars stored in print_buffer. */ |
d311d28c | 74 | static ptrdiff_t print_buffer_pos; |
dc2a0b79 | 75 | /* Bytes stored in print_buffer. */ |
d311d28c | 76 | static ptrdiff_t print_buffer_pos_byte; |
6fec5601 | 77 | |
835d0be6 | 78 | Lisp_Object Qprint_escape_newlines; |
955cbe7b | 79 | static Lisp_Object Qprint_escape_multibyte, Qprint_escape_nonascii; |
835d0be6 | 80 | |
a65b85b5 SM |
81 | /* Vprint_number_table is a table, that keeps objects that are going to |
82 | be printed, to allow use of #n= and #n# to express sharing. | |
83 | For any given object, the table can give the following values: | |
84 | t the object will be printed only once. | |
85 | -N the object will be printed several times and will take number N. | |
86 | N the object has been printed so we can refer to it as #N#. | |
87 | print_number_index holds the largest N already used. | |
88 | N has to be striclty larger than 0 since we need to distinguish -N. */ | |
a8b7caa3 | 89 | static ptrdiff_t print_number_index; |
ad64fc97 | 90 | static void print_interval (INTERVAL interval, Lisp_Object printcharfun); |
38010d50 | 91 | |
945b0111 | 92 | /* GDB resets this to zero on W32 to disable OutputDebugString calls. */ |
42c8bc9b | 93 | int print_output_debug_flag EXTERNALLY_VISIBLE = 1; |
945b0111 | 94 | |
38010d50 | 95 | \f |
4ae29f89 | 96 | /* Low level output routines for characters and strings. */ |
38010d50 JB |
97 | |
98 | /* Lisp functions to do output using a stream | |
081e0581 EN |
99 | must have the stream in a variable called printcharfun |
100 | and must start with PRINTPREPARE, end with PRINTFINISH, | |
101 | and use PRINTDECLARE to declare common variables. | |
102 | Use PRINTCHAR to output one character, | |
4ae29f89 | 103 | or call strout to output a block of characters. */ |
0788646c GM |
104 | |
105 | #define PRINTDECLARE \ | |
106 | struct buffer *old = current_buffer; \ | |
d311d28c PE |
107 | ptrdiff_t old_point = -1, start_point = -1; \ |
108 | ptrdiff_t old_point_byte = -1, start_point_byte = -1; \ | |
109 | ptrdiff_t specpdl_count = SPECPDL_INDEX (); \ | |
0788646c | 110 | int free_print_buffer = 0; \ |
4b4deea2 | 111 | int multibyte = !NILP (BVAR (current_buffer, enable_multibyte_characters)); \ |
081e0581 EN |
112 | Lisp_Object original |
113 | ||
0788646c GM |
114 | #define PRINTPREPARE \ |
115 | original = printcharfun; \ | |
116 | if (NILP (printcharfun)) printcharfun = Qt; \ | |
117 | if (BUFFERP (printcharfun)) \ | |
118 | { \ | |
119 | if (XBUFFER (printcharfun) != current_buffer) \ | |
120 | Fset_buffer (printcharfun); \ | |
121 | printcharfun = Qnil; \ | |
122 | } \ | |
123 | if (MARKERP (printcharfun)) \ | |
124 | { \ | |
d311d28c | 125 | ptrdiff_t marker_pos; \ |
cd3587c1 | 126 | if (! XMARKER (printcharfun)->buffer) \ |
0788646c | 127 | error ("Marker does not point anywhere"); \ |
1cf21850 LK |
128 | if (XMARKER (printcharfun)->buffer != current_buffer) \ |
129 | set_buffer_internal (XMARKER (printcharfun)->buffer); \ | |
130 | marker_pos = marker_position (printcharfun); \ | |
131 | if (marker_pos < BEGV || marker_pos > ZV) \ | |
132 | error ("Marker is outside the accessible part of the buffer"); \ | |
0788646c GM |
133 | old_point = PT; \ |
134 | old_point_byte = PT_BYTE; \ | |
1cf21850 | 135 | SET_PT_BOTH (marker_pos, \ |
0788646c GM |
136 | marker_byte_position (printcharfun)); \ |
137 | start_point = PT; \ | |
138 | start_point_byte = PT_BYTE; \ | |
139 | printcharfun = Qnil; \ | |
140 | } \ | |
141 | if (NILP (printcharfun)) \ | |
142 | { \ | |
143 | Lisp_Object string; \ | |
4b4deea2 | 144 | if (NILP (BVAR (current_buffer, enable_multibyte_characters)) \ |
0788646c GM |
145 | && ! print_escape_multibyte) \ |
146 | specbind (Qprint_escape_multibyte, Qt); \ | |
4b4deea2 | 147 | if (! NILP (BVAR (current_buffer, enable_multibyte_characters)) \ |
d39f07c2 RS |
148 | && ! print_escape_nonascii) \ |
149 | specbind (Qprint_escape_nonascii, Qt); \ | |
0788646c GM |
150 | if (print_buffer != 0) \ |
151 | { \ | |
152 | string = make_string_from_bytes (print_buffer, \ | |
153 | print_buffer_pos, \ | |
154 | print_buffer_pos_byte); \ | |
155 | record_unwind_protect (print_unwind, string); \ | |
156 | } \ | |
157 | else \ | |
158 | { \ | |
d311d28c | 159 | int new_size = 1000; \ |
23f86fce | 160 | print_buffer = xmalloc (new_size); \ |
ff5844ad | 161 | print_buffer_size = new_size; \ |
0788646c GM |
162 | free_print_buffer = 1; \ |
163 | } \ | |
164 | print_buffer_pos = 0; \ | |
165 | print_buffer_pos_byte = 0; \ | |
166 | } \ | |
5494b50f | 167 | if (EQ (printcharfun, Qt) && ! noninteractive) \ |
0f25ecc6 | 168 | setup_echo_area_for_printing (multibyte); |
38010d50 | 169 | |
8a2ab0c6 RS |
170 | #define PRINTFINISH \ |
171 | if (NILP (printcharfun)) \ | |
172 | { \ | |
173 | if (print_buffer_pos != print_buffer_pos_byte \ | |
4b4deea2 | 174 | && NILP (BVAR (current_buffer, enable_multibyte_characters))) \ |
8a2ab0c6 | 175 | { \ |
38182d90 | 176 | unsigned char *temp = alloca (print_buffer_pos + 1); \ |
09125ef8 PE |
177 | copy_text ((unsigned char *) print_buffer, temp, \ |
178 | print_buffer_pos_byte, 1, 0); \ | |
b68864e5 | 179 | insert_1_both ((char *) temp, print_buffer_pos, \ |
8a2ab0c6 RS |
180 | print_buffer_pos, 0, 1, 0); \ |
181 | } \ | |
182 | else \ | |
183 | insert_1_both (print_buffer, print_buffer_pos, \ | |
184 | print_buffer_pos_byte, 0, 1, 0); \ | |
570fab6c | 185 | signal_after_change (PT - print_buffer_pos, 0, print_buffer_pos);\ |
8a2ab0c6 RS |
186 | } \ |
187 | if (free_print_buffer) \ | |
188 | { \ | |
189 | xfree (print_buffer); \ | |
190 | print_buffer = 0; \ | |
191 | } \ | |
192 | unbind_to (specpdl_count, Qnil); \ | |
193 | if (MARKERP (original)) \ | |
194 | set_marker_both (original, Qnil, PT, PT_BYTE); \ | |
195 | if (old_point >= 0) \ | |
196 | SET_PT_BOTH (old_point + (old_point >= start_point \ | |
197 | ? PT - start_point : 0), \ | |
6ddd6eee | 198 | old_point_byte + (old_point_byte >= start_point_byte \ |
cd3587c1 | 199 | ? PT_BYTE - start_point_byte : 0)); \ |
8a2ab0c6 | 200 | if (old != current_buffer) \ |
0f25ecc6 | 201 | set_buffer_internal (old); |
38010d50 JB |
202 | |
203 | #define PRINTCHAR(ch) printchar (ch, printcharfun) | |
204 | ||
08e8d297 RS |
205 | /* This is used to restore the saved contents of print_buffer |
206 | when there is a recursive call to print. */ | |
0788646c | 207 | |
08e8d297 | 208 | static Lisp_Object |
971de7fb | 209 | print_unwind (Lisp_Object saved_text) |
08e8d297 | 210 | { |
72af86bd | 211 | memcpy (print_buffer, SDATA (saved_text), SCHARS (saved_text)); |
ee5263af | 212 | return Qnil; |
08e8d297 RS |
213 | } |
214 | ||
0788646c GM |
215 | |
216 | /* Print character CH using method FUN. FUN nil means print to | |
217 | print_buffer. FUN t means print to echo area or stdout if | |
218 | non-interactive. If FUN is neither nil nor t, call FUN with CH as | |
219 | argument. */ | |
38010d50 JB |
220 | |
221 | static void | |
971de7fb | 222 | printchar (unsigned int ch, Lisp_Object fun) |
38010d50 | 223 | { |
0788646c GM |
224 | if (!NILP (fun) && !EQ (fun, Qt)) |
225 | call1 (fun, make_number (ch)); | |
226 | else | |
38010d50 | 227 | { |
19a86a03 KH |
228 | unsigned char str[MAX_MULTIBYTE_LENGTH]; |
229 | int len = CHAR_STRING (ch, str); | |
230 | ||
09eddb56 | 231 | QUIT; |
177c0ea7 | 232 | |
0788646c | 233 | if (NILP (fun)) |
9a4d01d8 | 234 | { |
d311d28c PE |
235 | ptrdiff_t incr = len - (print_buffer_size - print_buffer_pos_byte); |
236 | if (0 < incr) | |
237 | print_buffer = | |
238 | xpalloc (print_buffer, &print_buffer_size, incr, -1, 1); | |
72af86bd | 239 | memcpy (print_buffer + print_buffer_pos_byte, str, len); |
0788646c GM |
240 | print_buffer_pos += 1; |
241 | print_buffer_pos_byte += len; | |
9a4d01d8 | 242 | } |
0788646c | 243 | else if (noninteractive) |
1134b854 | 244 | { |
0788646c GM |
245 | fwrite (str, 1, len, stdout); |
246 | noninteractive_need_newline = 1; | |
1134b854 | 247 | } |
0788646c | 248 | else |
d366d2e4 | 249 | { |
0788646c | 250 | int multibyte_p |
4b4deea2 | 251 | = !NILP (BVAR (current_buffer, enable_multibyte_characters)); |
177c0ea7 | 252 | |
eb7b678b | 253 | setup_echo_area_for_printing (multibyte_p); |
0788646c | 254 | insert_char (ch); |
09125ef8 | 255 | message_dolog ((char *) str, len, 0, multibyte_p); |
d366d2e4 | 256 | } |
38010d50 | 257 | } |
38010d50 JB |
258 | } |
259 | ||
0788646c GM |
260 | |
261 | /* Output SIZE characters, SIZE_BYTE bytes from string PTR using | |
262 | method PRINTCHARFUN. If SIZE < 0, use the string length of PTR for | |
263 | both SIZE and SIZE_BYTE. PRINTCHARFUN nil means output to | |
264 | print_buffer. PRINTCHARFUN t means output to the echo area or to | |
265 | stdout if non-interactive. If neither nil nor t, call Lisp | |
266 | function PRINTCHARFUN for each character printed. MULTIBYTE | |
efb15f96 RS |
267 | non-zero means PTR contains multibyte characters. |
268 | ||
269 | In the case where PRINTCHARFUN is nil, it is safe for PTR to point | |
270 | to data in a Lisp string. Otherwise that is not safe. */ | |
0788646c | 271 | |
38010d50 | 272 | static void |
d311d28c | 273 | strout (const char *ptr, ptrdiff_t size, ptrdiff_t size_byte, |
1db5b1ad | 274 | Lisp_Object printcharfun) |
38010d50 | 275 | { |
087e3c46 | 276 | if (size < 0) |
dc2a0b79 | 277 | size_byte = size = strlen (ptr); |
087e3c46 | 278 | |
0788646c | 279 | if (NILP (printcharfun)) |
38010d50 | 280 | { |
d311d28c PE |
281 | ptrdiff_t incr = size_byte - (print_buffer_size - print_buffer_pos_byte); |
282 | if (0 < incr) | |
283 | print_buffer = xpalloc (print_buffer, &print_buffer_size, incr, -1, 1); | |
72af86bd | 284 | memcpy (print_buffer + print_buffer_pos_byte, ptr, size_byte); |
6fec5601 | 285 | print_buffer_pos += size; |
dc2a0b79 | 286 | print_buffer_pos_byte += size_byte; |
38010d50 | 287 | } |
7b0cb8a0 | 288 | else if (noninteractive && EQ (printcharfun, Qt)) |
38010d50 | 289 | { |
0788646c GM |
290 | fwrite (ptr, 1, size_byte, stdout); |
291 | noninteractive_need_newline = 1; | |
292 | } | |
293 | else if (EQ (printcharfun, Qt)) | |
294 | { | |
295 | /* Output to echo area. We're trying to avoid a little overhead | |
296 | here, that's the reason we don't call printchar to do the | |
297 | job. */ | |
298 | int i; | |
299 | int multibyte_p | |
4b4deea2 | 300 | = !NILP (BVAR (current_buffer, enable_multibyte_characters)); |
177c0ea7 | 301 | |
eb7b678b | 302 | setup_echo_area_for_printing (multibyte_p); |
0788646c | 303 | message_dolog (ptr, size_byte, 0, multibyte_p); |
177c0ea7 | 304 | |
0788646c | 305 | if (size == size_byte) |
38010d50 | 306 | { |
0788646c | 307 | for (i = 0; i < size; ++i) |
bcdbfd36 | 308 | insert_char ((unsigned char) *ptr++); |
38010d50 | 309 | } |
0788646c | 310 | else |
38010d50 | 311 | { |
0788646c GM |
312 | int len; |
313 | for (i = 0; i < size_byte; i += len) | |
aec2b95b | 314 | { |
09125ef8 PE |
315 | int ch = STRING_CHAR_AND_LENGTH ((const unsigned char *) ptr + i, |
316 | len); | |
0788646c | 317 | insert_char (ch); |
aec2b95b | 318 | } |
38010d50 | 319 | } |
0788646c GM |
320 | } |
321 | else | |
322 | { | |
323 | /* PRINTCHARFUN is a Lisp function. */ | |
d311d28c | 324 | ptrdiff_t i = 0; |
38010d50 | 325 | |
0788646c | 326 | if (size == size_byte) |
4ad8bb20 | 327 | { |
0788646c | 328 | while (i < size_byte) |
4ad8bb20 | 329 | { |
0788646c GM |
330 | int ch = ptr[i++]; |
331 | PRINTCHAR (ch); | |
4ad8bb20 | 332 | } |
4ad8bb20 | 333 | } |
0788646c | 334 | else |
087e3c46 | 335 | { |
0788646c GM |
336 | while (i < size_byte) |
337 | { | |
338 | /* Here, we must convert each multi-byte form to the | |
339 | corresponding character code before handing it to | |
340 | PRINTCHAR. */ | |
341 | int len; | |
09125ef8 PE |
342 | int ch = STRING_CHAR_AND_LENGTH ((const unsigned char *) ptr + i, |
343 | len); | |
0788646c GM |
344 | PRINTCHAR (ch); |
345 | i += len; | |
346 | } | |
087e3c46 | 347 | } |
38010d50 | 348 | } |
38010d50 JB |
349 | } |
350 | ||
351 | /* Print the contents of a string STRING using PRINTCHARFUN. | |
ed2c35ef RS |
352 | It isn't safe to use strout in many cases, |
353 | because printing one char can relocate. */ | |
38010d50 | 354 | |
dc2a0b79 | 355 | static void |
971de7fb | 356 | print_string (Lisp_Object string, Lisp_Object printcharfun) |
38010d50 | 357 | { |
6fec5601 | 358 | if (EQ (printcharfun, Qt) || NILP (printcharfun)) |
375fcc09 | 359 | { |
d311d28c | 360 | ptrdiff_t chars; |
375fcc09 | 361 | |
8b4b4467 KH |
362 | if (print_escape_nonascii) |
363 | string = string_escape_byte8 (string); | |
364 | ||
375fcc09 | 365 | if (STRING_MULTIBYTE (string)) |
d5db4077 | 366 | chars = SCHARS (string); |
8b4b4467 KH |
367 | else if (! print_escape_nonascii |
368 | && (EQ (printcharfun, Qt) | |
4b4deea2 TT |
369 | ? ! NILP (BVAR (&buffer_defaults, enable_multibyte_characters)) |
370 | : ! NILP (BVAR (current_buffer, enable_multibyte_characters)))) | |
a76ef35d KH |
371 | { |
372 | /* If unibyte string STRING contains 8-bit codes, we must | |
373 | convert STRING to a multibyte string containing the same | |
374 | character codes. */ | |
375 | Lisp_Object newstr; | |
d311d28c | 376 | ptrdiff_t bytes; |
a76ef35d | 377 | |
d5db4077 | 378 | chars = SBYTES (string); |
de883a70 | 379 | bytes = count_size_as_multibyte (SDATA (string), chars); |
a76ef35d KH |
380 | if (chars < bytes) |
381 | { | |
382 | newstr = make_uninit_multibyte_string (chars, bytes); | |
72af86bd | 383 | memcpy (SDATA (newstr), SDATA (string), chars); |
d5db4077 | 384 | str_to_multibyte (SDATA (newstr), bytes, chars); |
a76ef35d KH |
385 | string = newstr; |
386 | } | |
387 | } | |
375fcc09 | 388 | else |
d5db4077 | 389 | chars = SBYTES (string); |
375fcc09 | 390 | |
efb15f96 RS |
391 | if (EQ (printcharfun, Qt)) |
392 | { | |
393 | /* Output to echo area. */ | |
d311d28c | 394 | ptrdiff_t nbytes = SBYTES (string); |
efb15f96 RS |
395 | |
396 | /* Copy the string contents so that relocation of STRING by | |
397 | GC does not cause trouble. */ | |
398 | USE_SAFE_ALLOCA; | |
98c6f1e3 | 399 | char *buffer = SAFE_ALLOCA (nbytes); |
72af86bd | 400 | memcpy (buffer, SDATA (string), nbytes); |
efb15f96 | 401 | |
98c6f1e3 | 402 | strout (buffer, chars, nbytes, printcharfun); |
efb15f96 RS |
403 | |
404 | SAFE_FREE (); | |
405 | } | |
406 | else | |
407 | /* No need to copy, since output to print_buffer can't GC. */ | |
1db5b1ad | 408 | strout (SSDATA (string), chars, SBYTES (string), printcharfun); |
375fcc09 | 409 | } |
38010d50 JB |
410 | else |
411 | { | |
dc2a0b79 RS |
412 | /* Otherwise, string may be relocated by printing one char. |
413 | So re-fetch the string address for each character. */ | |
d311d28c PE |
414 | ptrdiff_t i; |
415 | ptrdiff_t size = SCHARS (string); | |
416 | ptrdiff_t size_byte = SBYTES (string); | |
38010d50 JB |
417 | struct gcpro gcpro1; |
418 | GCPRO1 (string); | |
dc2a0b79 RS |
419 | if (size == size_byte) |
420 | for (i = 0; i < size; i++) | |
d5db4077 | 421 | PRINTCHAR (SREF (string, i)); |
dc2a0b79 | 422 | else |
6b61353c | 423 | for (i = 0; i < size_byte; ) |
dc2a0b79 RS |
424 | { |
425 | /* Here, we must convert each multi-byte form to the | |
426 | corresponding character code before handing it to PRINTCHAR. */ | |
427 | int len; | |
62a6e103 | 428 | int ch = STRING_CHAR_AND_LENGTH (SDATA (string) + i, len); |
dc2a0b79 RS |
429 | PRINTCHAR (ch); |
430 | i += len; | |
431 | } | |
38010d50 JB |
432 | UNGCPRO; |
433 | } | |
434 | } | |
435 | \f | |
436 | DEFUN ("write-char", Fwrite_char, Swrite_char, 1, 2, 0, | |
8c1a1077 PJ |
437 | doc: /* Output character CHARACTER to stream PRINTCHARFUN. |
438 | PRINTCHARFUN defaults to the value of `standard-output' (which see). */) | |
5842a27b | 439 | (Lisp_Object character, Lisp_Object printcharfun) |
38010d50 | 440 | { |
081e0581 | 441 | PRINTDECLARE; |
38010d50 | 442 | |
10eebdbb | 443 | if (NILP (printcharfun)) |
38010d50 | 444 | printcharfun = Vstandard_output; |
b7826503 | 445 | CHECK_NUMBER (character); |
38010d50 | 446 | PRINTPREPARE; |
3738a371 | 447 | PRINTCHAR (XINT (character)); |
38010d50 | 448 | PRINTFINISH; |
3738a371 | 449 | return character; |
38010d50 JB |
450 | } |
451 | ||
dc2a0b79 RS |
452 | /* Used from outside of print.c to print a block of SIZE |
453 | single-byte chars at DATA on the default output stream. | |
38010d50 JB |
454 | Do not use this on the contents of a Lisp string. */ |
455 | ||
dc22f25e | 456 | void |
a8fe7202 | 457 | write_string (const char *data, int size) |
38010d50 | 458 | { |
081e0581 | 459 | PRINTDECLARE; |
38010d50 | 460 | Lisp_Object printcharfun; |
38010d50 JB |
461 | |
462 | printcharfun = Vstandard_output; | |
463 | ||
464 | PRINTPREPARE; | |
1db5b1ad | 465 | strout (data, size, size, printcharfun); |
38010d50 JB |
466 | PRINTFINISH; |
467 | } | |
468 | ||
2f7c71a1 AS |
469 | /* Used to print a block of SIZE single-byte chars at DATA on a |
470 | specified stream PRINTCHARFUN. | |
38010d50 JB |
471 | Do not use this on the contents of a Lisp string. */ |
472 | ||
2f7c71a1 | 473 | static void |
a8fe7202 | 474 | write_string_1 (const char *data, int size, Lisp_Object printcharfun) |
38010d50 | 475 | { |
081e0581 | 476 | PRINTDECLARE; |
38010d50 JB |
477 | |
478 | PRINTPREPARE; | |
1db5b1ad | 479 | strout (data, size, size, printcharfun); |
38010d50 JB |
480 | PRINTFINISH; |
481 | } | |
482 | ||
483 | ||
38010d50 | 484 | void |
971de7fb | 485 | temp_output_buffer_setup (const char *bufname) |
38010d50 | 486 | { |
d311d28c | 487 | ptrdiff_t count = SPECPDL_INDEX (); |
38010d50 JB |
488 | register struct buffer *old = current_buffer; |
489 | register Lisp_Object buf; | |
490 | ||
d9c21094 RS |
491 | record_unwind_protect (set_buffer_if_live, Fcurrent_buffer ()); |
492 | ||
38010d50 JB |
493 | Fset_buffer (Fget_buffer_create (build_string (bufname))); |
494 | ||
9756ea0f | 495 | Fkill_all_local_variables (); |
fd531951 | 496 | delete_all_overlays (current_buffer); |
4c31be61 DA |
497 | BSET (current_buffer, directory, BVAR (old, directory)); |
498 | BSET (current_buffer, read_only, Qnil); | |
499 | BSET (current_buffer, filename, Qnil); | |
500 | BSET (current_buffer, undo_list, Qt); | |
fd318b54 DA |
501 | eassert (current_buffer->overlays_before == NULL); |
502 | eassert (current_buffer->overlays_after == NULL); | |
4c31be61 | 503 | BSET (current_buffer, enable_multibyte_characters, |
fd318b54 | 504 | BVAR (&buffer_defaults, enable_multibyte_characters)); |
d28eab19 KH |
505 | specbind (Qinhibit_read_only, Qt); |
506 | specbind (Qinhibit_modification_hooks, Qt); | |
38010d50 | 507 | Ferase_buffer (); |
633307b5 | 508 | XSETBUFFER (buf, current_buffer); |
38010d50 | 509 | |
98040cf1 | 510 | Frun_hooks (1, &Qtemp_buffer_setup_hook); |
d9c21094 RS |
511 | |
512 | unbind_to (count, Qnil); | |
513 | ||
514 | specbind (Qstandard_output, buf); | |
38010d50 | 515 | } |
38010d50 | 516 | \f |
971de7fb DN |
517 | static void print (Lisp_Object obj, register Lisp_Object printcharfun, int escapeflag); |
518 | static void print_preprocess (Lisp_Object obj); | |
519 | static void print_preprocess_string (INTERVAL interval, Lisp_Object arg); | |
520 | static void print_object (Lisp_Object obj, register Lisp_Object printcharfun, int escapeflag); | |
38010d50 | 521 | |
a7ca3326 | 522 | DEFUN ("terpri", Fterpri, Sterpri, 0, 1, 0, |
8c1a1077 PJ |
523 | doc: /* Output a newline to stream PRINTCHARFUN. |
524 | If PRINTCHARFUN is omitted or nil, the value of `standard-output' is used. */) | |
5842a27b | 525 | (Lisp_Object printcharfun) |
38010d50 | 526 | { |
081e0581 | 527 | PRINTDECLARE; |
38010d50 | 528 | |
10eebdbb | 529 | if (NILP (printcharfun)) |
38010d50 JB |
530 | printcharfun = Vstandard_output; |
531 | PRINTPREPARE; | |
532 | PRINTCHAR ('\n'); | |
533 | PRINTFINISH; | |
534 | return Qt; | |
535 | } | |
536 | ||
a7ca3326 | 537 | DEFUN ("prin1", Fprin1, Sprin1, 1, 2, 0, |
8c1a1077 PJ |
538 | doc: /* Output the printed representation of OBJECT, any Lisp object. |
539 | Quoting characters are printed when needed to make output that `read' | |
9474c847 | 540 | can handle, whenever this is possible. For complex objects, the behavior |
7fab9223 | 541 | is controlled by `print-level' and `print-length', which see. |
8c1a1077 PJ |
542 | |
543 | OBJECT is any of the Lisp data types: a number, a string, a symbol, | |
544 | a list, a buffer, a window, a frame, etc. | |
545 | ||
546 | A printed representation of an object is text which describes that object. | |
547 | ||
548 | Optional argument PRINTCHARFUN is the output stream, which can be one | |
549 | of these: | |
550 | ||
551 | - a buffer, in which case output is inserted into that buffer at point; | |
552 | - a marker, in which case output is inserted at marker's position; | |
553 | - a function, in which case that function is called once for each | |
554 | character of OBJECT's printed representation; | |
555 | - a symbol, in which case that symbol's function definition is called; or | |
556 | - t, in which case the output is displayed in the echo area. | |
557 | ||
558 | If PRINTCHARFUN is omitted, the value of `standard-output' (which see) | |
559 | is used instead. */) | |
5842a27b | 560 | (Lisp_Object object, Lisp_Object printcharfun) |
38010d50 | 561 | { |
081e0581 | 562 | PRINTDECLARE; |
38010d50 | 563 | |
10eebdbb | 564 | if (NILP (printcharfun)) |
38010d50 JB |
565 | printcharfun = Vstandard_output; |
566 | PRINTPREPARE; | |
3738a371 | 567 | print (object, printcharfun, 1); |
38010d50 | 568 | PRINTFINISH; |
3738a371 | 569 | return object; |
38010d50 JB |
570 | } |
571 | ||
572 | /* a buffer which is used to hold output being built by prin1-to-string */ | |
573 | Lisp_Object Vprin1_to_string_buffer; | |
574 | ||
a7ca3326 | 575 | DEFUN ("prin1-to-string", Fprin1_to_string, Sprin1_to_string, 1, 2, 0, |
fd4d156b RS |
576 | doc: /* Return a string containing the printed representation of OBJECT. |
577 | OBJECT can be any Lisp object. This function outputs quoting characters | |
cf393f9b | 578 | when necessary to make output that `read' can handle, whenever possible, |
a2612656 EZ |
579 | unless the optional second argument NOESCAPE is non-nil. For complex objects, |
580 | the behavior is controlled by `print-level' and `print-length', which see. | |
8c1a1077 PJ |
581 | |
582 | OBJECT is any of the Lisp data types: a number, a string, a symbol, | |
583 | a list, a buffer, a window, a frame, etc. | |
584 | ||
585 | A printed representation of an object is text which describes that object. */) | |
5842a27b | 586 | (Lisp_Object object, Lisp_Object noescape) |
38010d50 | 587 | { |
081e0581 | 588 | Lisp_Object printcharfun; |
ca2de342 RS |
589 | /* struct gcpro gcpro1, gcpro2; */ |
590 | Lisp_Object save_deactivate_mark; | |
d311d28c | 591 | ptrdiff_t count = SPECPDL_INDEX (); |
6b61353c | 592 | struct buffer *previous; |
ca2de342 RS |
593 | |
594 | specbind (Qinhibit_modification_hooks, Qt); | |
2a42e8f6 | 595 | |
6b61353c KH |
596 | { |
597 | PRINTDECLARE; | |
598 | ||
599 | /* Save and restore this--we are altering a buffer | |
600 | but we don't want to deactivate the mark just for that. | |
601 | No need for specbind, since errors deactivate the mark. */ | |
602 | save_deactivate_mark = Vdeactivate_mark; | |
603 | /* GCPRO2 (object, save_deactivate_mark); */ | |
604 | abort_on_gc++; | |
605 | ||
606 | printcharfun = Vprin1_to_string_buffer; | |
607 | PRINTPREPARE; | |
608 | print (object, printcharfun, NILP (noescape)); | |
6196cffe | 609 | /* Make Vprin1_to_string_buffer be the default buffer after PRINTFINISH */ |
6b61353c KH |
610 | PRINTFINISH; |
611 | } | |
38010d50 | 612 | |
6b61353c | 613 | previous = current_buffer; |
38010d50 | 614 | set_buffer_internal (XBUFFER (Vprin1_to_string_buffer)); |
3738a371 | 615 | object = Fbuffer_string (); |
b51ee131 SM |
616 | if (SBYTES (object) == SCHARS (object)) |
617 | STRING_SET_UNIBYTE (object); | |
38010d50 | 618 | |
28b8f740 | 619 | /* Note that this won't make prepare_to_modify_buffer call |
6b61353c KH |
620 | ask-user-about-supersession-threat because this buffer |
621 | does not visit a file. */ | |
38010d50 | 622 | Ferase_buffer (); |
6b61353c | 623 | set_buffer_internal (previous); |
2a42e8f6 | 624 | |
ca2de342 RS |
625 | Vdeactivate_mark = save_deactivate_mark; |
626 | /* UNGCPRO; */ | |
38010d50 | 627 | |
ca2de342 RS |
628 | abort_on_gc--; |
629 | return unbind_to (count, object); | |
38010d50 JB |
630 | } |
631 | ||
ad64fc97 | 632 | DEFUN ("princ", Fprinc, Sprinc, 1, 2, 0, |
8c1a1077 PJ |
633 | doc: /* Output the printed representation of OBJECT, any Lisp object. |
634 | No quoting characters are used; no delimiters are printed around | |
635 | the contents of strings. | |
636 | ||
637 | OBJECT is any of the Lisp data types: a number, a string, a symbol, | |
638 | a list, a buffer, a window, a frame, etc. | |
639 | ||
640 | A printed representation of an object is text which describes that object. | |
641 | ||
642 | Optional argument PRINTCHARFUN is the output stream, which can be one | |
643 | of these: | |
644 | ||
645 | - a buffer, in which case output is inserted into that buffer at point; | |
646 | - a marker, in which case output is inserted at marker's position; | |
647 | - a function, in which case that function is called once for each | |
648 | character of OBJECT's printed representation; | |
649 | - a symbol, in which case that symbol's function definition is called; or | |
650 | - t, in which case the output is displayed in the echo area. | |
651 | ||
652 | If PRINTCHARFUN is omitted, the value of `standard-output' (which see) | |
653 | is used instead. */) | |
5842a27b | 654 | (Lisp_Object object, Lisp_Object printcharfun) |
38010d50 | 655 | { |
081e0581 | 656 | PRINTDECLARE; |
38010d50 | 657 | |
10eebdbb | 658 | if (NILP (printcharfun)) |
38010d50 JB |
659 | printcharfun = Vstandard_output; |
660 | PRINTPREPARE; | |
3738a371 | 661 | print (object, printcharfun, 0); |
38010d50 | 662 | PRINTFINISH; |
3738a371 | 663 | return object; |
38010d50 JB |
664 | } |
665 | ||
a7ca3326 | 666 | DEFUN ("print", Fprint, Sprint, 1, 2, 0, |
8c1a1077 PJ |
667 | doc: /* Output the printed representation of OBJECT, with newlines around it. |
668 | Quoting characters are printed when needed to make output that `read' | |
9474c847 | 669 | can handle, whenever this is possible. For complex objects, the behavior |
7fab9223 | 670 | is controlled by `print-level' and `print-length', which see. |
8c1a1077 PJ |
671 | |
672 | OBJECT is any of the Lisp data types: a number, a string, a symbol, | |
673 | a list, a buffer, a window, a frame, etc. | |
674 | ||
675 | A printed representation of an object is text which describes that object. | |
676 | ||
677 | Optional argument PRINTCHARFUN is the output stream, which can be one | |
678 | of these: | |
679 | ||
680 | - a buffer, in which case output is inserted into that buffer at point; | |
681 | - a marker, in which case output is inserted at marker's position; | |
682 | - a function, in which case that function is called once for each | |
683 | character of OBJECT's printed representation; | |
684 | - a symbol, in which case that symbol's function definition is called; or | |
685 | - t, in which case the output is displayed in the echo area. | |
686 | ||
687 | If PRINTCHARFUN is omitted, the value of `standard-output' (which see) | |
688 | is used instead. */) | |
5842a27b | 689 | (Lisp_Object object, Lisp_Object printcharfun) |
38010d50 | 690 | { |
081e0581 | 691 | PRINTDECLARE; |
38010d50 JB |
692 | struct gcpro gcpro1; |
693 | ||
10eebdbb | 694 | if (NILP (printcharfun)) |
38010d50 | 695 | printcharfun = Vstandard_output; |
3738a371 | 696 | GCPRO1 (object); |
38010d50 | 697 | PRINTPREPARE; |
38010d50 | 698 | PRINTCHAR ('\n'); |
3738a371 | 699 | print (object, printcharfun, 1); |
38010d50 JB |
700 | PRINTCHAR ('\n'); |
701 | PRINTFINISH; | |
38010d50 | 702 | UNGCPRO; |
3738a371 | 703 | return object; |
38010d50 JB |
704 | } |
705 | ||
706 | /* The subroutine object for external-debugging-output is kept here | |
707 | for the convenience of the debugger. */ | |
708 | Lisp_Object Qexternal_debugging_output; | |
709 | ||
4746118a | 710 | DEFUN ("external-debugging-output", Fexternal_debugging_output, Sexternal_debugging_output, 1, 1, 0, |
8c1a1077 PJ |
711 | doc: /* Write CHARACTER to stderr. |
712 | You can call print while debugging emacs, and pass it this function | |
713 | to make it write to the debugging output. */) | |
5842a27b | 714 | (Lisp_Object character) |
38010d50 | 715 | { |
0fd11aa5 PE |
716 | CHECK_NUMBER (character); |
717 | putc (XINT (character) & 0xFF, stderr); | |
cd22039d RS |
718 | |
719 | #ifdef WINDOWSNT | |
720 | /* Send the output to a debugger (nothing happens if there isn't one). */ | |
945b0111 EZ |
721 | if (print_output_debug_flag) |
722 | { | |
723 | char buf[2] = {(char) XINT (character), '\0'}; | |
724 | OutputDebugString (buf); | |
725 | } | |
cd22039d RS |
726 | #endif |
727 | ||
38010d50 JB |
728 | return character; |
729 | } | |
cf1bb91b | 730 | |
c33f8948 RS |
731 | /* This function is never called. Its purpose is to prevent |
732 | print_output_debug_flag from being optimized away. */ | |
733 | ||
c38bf546 | 734 | extern void debug_output_compilation_hack (int) EXTERNALLY_VISIBLE; |
dae581bf | 735 | void |
971de7fb | 736 | debug_output_compilation_hack (int x) |
c33f8948 RS |
737 | { |
738 | print_output_debug_flag = x; | |
739 | } | |
6b61353c | 740 | |
cd3587c1 | 741 | #if defined (GNU_LINUX) |
6b61353c KH |
742 | |
743 | /* This functionality is not vitally important in general, so we rely on | |
744 | non-portable ability to use stderr as lvalue. */ | |
745 | ||
746 | #define WITH_REDIRECT_DEBUGGING_OUTPUT 1 | |
747 | ||
ad64fc97 | 748 | static FILE *initial_stderr_stream = NULL; |
6b61353c KH |
749 | |
750 | DEFUN ("redirect-debugging-output", Fredirect_debugging_output, Sredirect_debugging_output, | |
751 | 1, 2, | |
752 | "FDebug output file: \nP", | |
753 | doc: /* Redirect debugging output (stderr stream) to file FILE. | |
754 | If FILE is nil, reset target to the initial stderr stream. | |
755 | Optional arg APPEND non-nil (interactively, with prefix arg) means | |
28b8f740 | 756 | append to existing target file. */) |
5842a27b | 757 | (Lisp_Object file, Lisp_Object append) |
6b61353c KH |
758 | { |
759 | if (initial_stderr_stream != NULL) | |
f9467be3 YM |
760 | { |
761 | BLOCK_INPUT; | |
762 | fclose (stderr); | |
763 | UNBLOCK_INPUT; | |
764 | } | |
6b61353c KH |
765 | stderr = initial_stderr_stream; |
766 | initial_stderr_stream = NULL; | |
767 | ||
768 | if (STRINGP (file)) | |
769 | { | |
770 | file = Fexpand_file_name (file, Qnil); | |
771 | initial_stderr_stream = stderr; | |
d4d7173a | 772 | stderr = fopen (SSDATA (file), NILP (append) ? "w" : "a"); |
6b61353c KH |
773 | if (stderr == NULL) |
774 | { | |
775 | stderr = initial_stderr_stream; | |
776 | initial_stderr_stream = NULL; | |
777 | report_file_error ("Cannot open debugging output stream", | |
778 | Fcons (file, Qnil)); | |
779 | } | |
780 | } | |
781 | return Qnil; | |
782 | } | |
783 | #endif /* GNU_LINUX */ | |
784 | ||
785 | ||
cf1bb91b RS |
786 | /* This is the interface for debugging printing. */ |
787 | ||
788 | void | |
971de7fb | 789 | debug_print (Lisp_Object arg) |
cf1bb91b RS |
790 | { |
791 | Fprin1 (arg, Qexternal_debugging_output); | |
3684eb78 | 792 | fprintf (stderr, "\r\n"); |
cf1bb91b | 793 | } |
bd90dcd0 | 794 | |
e3b27b31 | 795 | void safe_debug_print (Lisp_Object) EXTERNALLY_VISIBLE; |
bd90dcd0 | 796 | void |
971de7fb | 797 | safe_debug_print (Lisp_Object arg) |
bd90dcd0 KS |
798 | { |
799 | int valid = valid_lisp_object_p (arg); | |
800 | ||
801 | if (valid > 0) | |
802 | debug_print (arg); | |
803 | else | |
c2982e87 | 804 | fprintf (stderr, "#<%s_LISP_OBJECT 0x%08"pI"x>\r\n", |
bd90dcd0 | 805 | !valid ? "INVALID" : "SOME", |
c2982e87 | 806 | XHASH (arg)); |
bd90dcd0 KS |
807 | } |
808 | ||
38010d50 | 809 | \f |
a7ca3326 | 810 | DEFUN ("error-message-string", Ferror_message_string, Serror_message_string, |
113620cc | 811 | 1, 1, 0, |
6b61353c KH |
812 | doc: /* Convert an error value (ERROR-SYMBOL . DATA) to an error message. |
813 | See Info anchor `(elisp)Definition of signal' for some details on how this | |
814 | error message is constructed. */) | |
5842a27b | 815 | (Lisp_Object obj) |
113620cc KH |
816 | { |
817 | struct buffer *old = current_buffer; | |
63fbf4ff | 818 | Lisp_Object value; |
113620cc KH |
819 | struct gcpro gcpro1; |
820 | ||
0872e11f RS |
821 | /* If OBJ is (error STRING), just return STRING. |
822 | That is not only faster, it also avoids the need to allocate | |
823 | space here when the error is due to memory full. */ | |
94b342ce KR |
824 | if (CONSP (obj) && EQ (XCAR (obj), Qerror) |
825 | && CONSP (XCDR (obj)) | |
826 | && STRINGP (XCAR (XCDR (obj))) | |
827 | && NILP (XCDR (XCDR (obj)))) | |
828 | return XCAR (XCDR (obj)); | |
0872e11f | 829 | |
240e806c | 830 | print_error_message (obj, Vprin1_to_string_buffer, 0, Qnil); |
113620cc KH |
831 | |
832 | set_buffer_internal (XBUFFER (Vprin1_to_string_buffer)); | |
833 | value = Fbuffer_string (); | |
834 | ||
835 | GCPRO1 (value); | |
836 | Ferase_buffer (); | |
837 | set_buffer_internal (old); | |
838 | UNGCPRO; | |
839 | ||
840 | return value; | |
841 | } | |
842 | ||
c02279de | 843 | /* Print an error message for the error DATA onto Lisp output stream |
7ab56fea RS |
844 | STREAM (suitable for the print functions). |
845 | CONTEXT is a C string describing the context of the error. | |
846 | CALLER is the Lisp function inside which the error was signaled. */ | |
113620cc | 847 | |
dc22f25e | 848 | void |
a8fe7202 AS |
849 | print_error_message (Lisp_Object data, Lisp_Object stream, const char *context, |
850 | Lisp_Object caller) | |
113620cc KH |
851 | { |
852 | Lisp_Object errname, errmsg, file_error, tail; | |
853 | struct gcpro gcpro1; | |
113620cc | 854 | |
240e806c RS |
855 | if (context != 0) |
856 | write_string_1 (context, -1, stream); | |
857 | ||
858 | /* If we know from where the error was signaled, show it in | |
859 | *Messages*. */ | |
860 | if (!NILP (caller) && SYMBOLP (caller)) | |
861 | { | |
11fb15d5 | 862 | Lisp_Object cname = SYMBOL_NAME (caller); |
98c6f1e3 | 863 | ptrdiff_t cnamelen = SBYTES (cname); |
d311d28c | 864 | USE_SAFE_ALLOCA; |
98c6f1e3 PE |
865 | char *name = SAFE_ALLOCA (cnamelen); |
866 | memcpy (name, SDATA (cname), cnamelen); | |
867 | message_dolog (name, cnamelen, 0, 0); | |
240e806c | 868 | message_dolog (": ", 2, 0, 0); |
d311d28c | 869 | SAFE_FREE (); |
240e806c RS |
870 | } |
871 | ||
113620cc KH |
872 | errname = Fcar (data); |
873 | ||
874 | if (EQ (errname, Qerror)) | |
875 | { | |
876 | data = Fcdr (data); | |
c02279de GM |
877 | if (!CONSP (data)) |
878 | data = Qnil; | |
113620cc KH |
879 | errmsg = Fcar (data); |
880 | file_error = Qnil; | |
881 | } | |
882 | else | |
883 | { | |
71873e2b | 884 | Lisp_Object error_conditions = Fget (errname, Qerror_conditions); |
113620cc | 885 | errmsg = Fget (errname, Qerror_message); |
c02279de | 886 | file_error = Fmemq (Qfile_error, error_conditions); |
113620cc KH |
887 | } |
888 | ||
889 | /* Print an error message including the data items. */ | |
890 | ||
891 | tail = Fcdr_safe (data); | |
892 | GCPRO1 (tail); | |
893 | ||
894 | /* For file-error, make error message by concatenating | |
895 | all the data items. They are all strings. */ | |
8c29413d | 896 | if (!NILP (file_error) && CONSP (tail)) |
94b342ce | 897 | errmsg = XCAR (tail), tail = XCDR (tail); |
113620cc | 898 | |
71873e2b SM |
899 | { |
900 | const char *sep = ": "; | |
901 | ||
902 | if (!STRINGP (errmsg)) | |
903 | write_string_1 ("peculiar error", -1, stream); | |
904 | else if (SCHARS (errmsg)) | |
905 | Fprinc (errmsg, stream); | |
906 | else | |
907 | sep = NULL; | |
908 | ||
909 | for (; CONSP (tail); tail = XCDR (tail), sep = ", ") | |
910 | { | |
911 | Lisp_Object obj; | |
99027bdd | 912 | |
71873e2b SM |
913 | if (sep) |
914 | write_string_1 (sep, 2, stream); | |
915 | obj = XCAR (tail); | |
916 | if (!NILP (file_error) | |
917 | || EQ (errname, Qend_of_file) || EQ (errname, Quser_error)) | |
918 | Fprinc (obj, stream); | |
919 | else | |
920 | Fprin1 (obj, stream); | |
921 | } | |
922 | } | |
177c0ea7 | 923 | |
113620cc KH |
924 | UNGCPRO; |
925 | } | |
38010d50 | 926 | |
c02279de GM |
927 | |
928 | \f | |
38010d50 | 929 | /* |
edb2a707 | 930 | * The buffer should be at least as large as the max string size of the |
8e6208c5 | 931 | * largest float, printed in the biggest notation. This is undoubtedly |
38010d50 JB |
932 | * 20d float_output_format, with the negative of the C-constant "HUGE" |
933 | * from <math.h>. | |
177c0ea7 | 934 | * |
38010d50 | 935 | * On the vax the worst case is -1e38 in 20d format which takes 61 bytes. |
177c0ea7 | 936 | * |
38010d50 JB |
937 | * I assume that IEEE-754 format numbers can take 329 bytes for the worst |
938 | * case of -1e307 in 20d float_output_format. What is one to do (short of | |
939 | * re-writing _doprnt to be more sane)? | |
940 | * -wsr | |
6e8e6bf2 | 941 | * Given the above, the buffer must be least FLOAT_TO_STRING_BUFSIZE bytes. |
38010d50 | 942 | */ |
edb2a707 | 943 | |
99027bdd | 944 | int |
57ace6d0 | 945 | float_to_string (char *buf, double data) |
38010d50 | 946 | { |
57ace6d0 | 947 | char *cp; |
322890c4 | 948 | int width; |
99027bdd | 949 | int len; |
177c0ea7 | 950 | |
7f45de2d RS |
951 | /* Check for plus infinity in a way that won't lose |
952 | if there is no plus infinity. */ | |
953 | if (data == data / 2 && data > 1.0) | |
954 | { | |
99027bdd PE |
955 | static char const infinity_string[] = "1.0e+INF"; |
956 | strcpy (buf, infinity_string); | |
957 | return sizeof infinity_string - 1; | |
7f45de2d RS |
958 | } |
959 | /* Likewise for minus infinity. */ | |
960 | if (data == data / 2 && data < -1.0) | |
961 | { | |
99027bdd PE |
962 | static char const minus_infinity_string[] = "-1.0e+INF"; |
963 | strcpy (buf, minus_infinity_string); | |
964 | return sizeof minus_infinity_string - 1; | |
7f45de2d RS |
965 | } |
966 | /* Check for NaN in a way that won't fail if there are no NaNs. */ | |
967 | if (! (data * 0.0 >= 0.0)) | |
968 | { | |
68c45bf0 PE |
969 | /* Prepend "-" if the NaN's sign bit is negative. |
970 | The sign bit of a double is the bit that is 1 in -0.0. */ | |
99027bdd | 971 | static char const NaN_string[] = "0.0e+NaN"; |
68c45bf0 PE |
972 | int i; |
973 | union { double d; char c[sizeof (double)]; } u_data, u_minus_zero; | |
99027bdd | 974 | int negative = 0; |
68c45bf0 PE |
975 | u_data.d = data; |
976 | u_minus_zero.d = - 0.0; | |
977 | for (i = 0; i < sizeof (double); i++) | |
978 | if (u_data.c[i] & u_minus_zero.c[i]) | |
979 | { | |
99027bdd PE |
980 | *buf = '-'; |
981 | negative = 1; | |
68c45bf0 PE |
982 | break; |
983 | } | |
177c0ea7 | 984 | |
99027bdd PE |
985 | strcpy (buf + negative, NaN_string); |
986 | return negative + sizeof NaN_string - 1; | |
7f45de2d RS |
987 | } |
988 | ||
10eebdbb | 989 | if (NILP (Vfloat_output_format) |
d4ae1f7e | 990 | || !STRINGP (Vfloat_output_format)) |
38010d50 | 991 | lose: |
322890c4 | 992 | { |
f356c3fb | 993 | /* Generate the fewest number of digits that represent the |
6e8e6bf2 | 994 | floating point value without losing information. */ |
99027bdd | 995 | len = dtoastr (buf, FLOAT_TO_STRING_BUFSIZE - 2, 0, 0, data); |
75b43359 MWD |
996 | /* The decimal point must be printed, or the byte compiler can |
997 | get confused (Bug#8033). */ | |
998 | width = 1; | |
322890c4 | 999 | } |
38010d50 JB |
1000 | else /* oink oink */ |
1001 | { | |
1002 | /* Check that the spec we have is fully valid. | |
1003 | This means not only valid for printf, | |
1004 | but meant for floats, and reasonable. */ | |
57ace6d0 | 1005 | cp = SSDATA (Vfloat_output_format); |
38010d50 JB |
1006 | |
1007 | if (cp[0] != '%') | |
1008 | goto lose; | |
1009 | if (cp[1] != '.') | |
1010 | goto lose; | |
1011 | ||
1012 | cp += 2; | |
c7b14277 JB |
1013 | |
1014 | /* Check the width specification. */ | |
322890c4 | 1015 | width = -1; |
c7b14277 | 1016 | if ('0' <= *cp && *cp <= '9') |
381cd4bb KH |
1017 | { |
1018 | width = 0; | |
1019 | do | |
aca216ff PE |
1020 | { |
1021 | width = (width * 10) + (*cp++ - '0'); | |
1022 | if (DBL_DIG < width) | |
1023 | goto lose; | |
1024 | } | |
381cd4bb KH |
1025 | while (*cp >= '0' && *cp <= '9'); |
1026 | ||
1027 | /* A precision of zero is valid only for %f. */ | |
aca216ff | 1028 | if (width == 0 && *cp != 'f') |
381cd4bb KH |
1029 | goto lose; |
1030 | } | |
38010d50 JB |
1031 | |
1032 | if (*cp != 'e' && *cp != 'f' && *cp != 'g') | |
1033 | goto lose; | |
1034 | ||
38010d50 JB |
1035 | if (cp[1] != 0) |
1036 | goto lose; | |
1037 | ||
99027bdd | 1038 | len = sprintf (buf, SSDATA (Vfloat_output_format), data); |
38010d50 | 1039 | } |
edb2a707 | 1040 | |
c7b14277 JB |
1041 | /* Make sure there is a decimal point with digit after, or an |
1042 | exponent, so that the value is readable as a float. But don't do | |
322890c4 RS |
1043 | this with "%.0f"; it's valid for that not to produce a decimal |
1044 | point. Note that width can be 0 only for %.0f. */ | |
1045 | if (width != 0) | |
0601fd3d | 1046 | { |
c7b14277 JB |
1047 | for (cp = buf; *cp; cp++) |
1048 | if ((*cp < '0' || *cp > '9') && *cp != '-') | |
1049 | break; | |
0601fd3d | 1050 | |
c7b14277 JB |
1051 | if (*cp == '.' && cp[1] == 0) |
1052 | { | |
1053 | cp[1] = '0'; | |
1054 | cp[2] = 0; | |
99027bdd | 1055 | len++; |
c7b14277 | 1056 | } |
75b43359 | 1057 | else if (*cp == 0) |
c7b14277 JB |
1058 | { |
1059 | *cp++ = '.'; | |
1060 | *cp++ = '0'; | |
1061 | *cp++ = 0; | |
99027bdd | 1062 | len += 2; |
c7b14277 | 1063 | } |
edb2a707 | 1064 | } |
99027bdd PE |
1065 | |
1066 | return len; | |
38010d50 | 1067 | } |
cc94f3b2 | 1068 | |
38010d50 JB |
1069 | \f |
1070 | static void | |
971de7fb | 1071 | print (Lisp_Object obj, register Lisp_Object printcharfun, int escapeflag) |
38010d50 | 1072 | { |
a22dec27 | 1073 | new_backquote_output = 0; |
38010d50 | 1074 | |
0f25ecc6 RS |
1075 | /* Reset print_number_index and Vprint_number_table only when |
1076 | the variable Vprint_continuous_numbering is nil. Otherwise, | |
1077 | the values of these variables will be kept between several | |
1078 | print functions. */ | |
e026eb89 KS |
1079 | if (NILP (Vprint_continuous_numbering) |
1080 | || NILP (Vprint_number_table)) | |
0f25ecc6 RS |
1081 | { |
1082 | print_number_index = 0; | |
1083 | Vprint_number_table = Qnil; | |
1084 | } | |
38010d50 | 1085 | |
0f25ecc6 RS |
1086 | /* Construct Vprint_number_table for print-gensym and print-circle. */ |
1087 | if (!NILP (Vprint_gensym) || !NILP (Vprint_circle)) | |
ec838c39 | 1088 | { |
e6d4cddd RS |
1089 | /* Construct Vprint_number_table. |
1090 | This increments print_number_index for the objects added. */ | |
9a6a4c40 | 1091 | print_depth = 0; |
0f25ecc6 | 1092 | print_preprocess (obj); |
e6d4cddd | 1093 | |
a65b85b5 SM |
1094 | if (HASH_TABLE_P (Vprint_number_table)) |
1095 | { /* Remove unnecessary objects, which appear only once in OBJ; | |
a179e3f7 | 1096 | that is, whose status is Qt. */ |
a65b85b5 | 1097 | struct Lisp_Hash_Table *h = XHASH_TABLE (Vprint_number_table); |
d311d28c | 1098 | ptrdiff_t i; |
e6d4cddd | 1099 | |
a65b85b5 SM |
1100 | for (i = 0; i < HASH_TABLE_SIZE (h); ++i) |
1101 | if (!NILP (HASH_HASH (h, i)) | |
1102 | && EQ (HASH_VALUE (h, i), Qt)) | |
1103 | Fremhash (HASH_KEY (h, i), Vprint_number_table); | |
1104 | } | |
0f25ecc6 RS |
1105 | } |
1106 | ||
9a6a4c40 | 1107 | print_depth = 0; |
0f25ecc6 RS |
1108 | print_object (obj, printcharfun, escapeflag); |
1109 | } | |
1110 | ||
fb103ca9 SM |
1111 | #define PRINT_CIRCLE_CANDIDATE_P(obj) \ |
1112 | (STRINGP (obj) || CONSP (obj) \ | |
1113 | || (VECTORLIKEP (obj) \ | |
1114 | && (VECTORP (obj) || COMPILEDP (obj) \ | |
1115 | || CHAR_TABLE_P (obj) || SUB_CHAR_TABLE_P (obj) \ | |
1116 | || HASH_TABLE_P (obj) || FONTP (obj))) \ | |
1117 | || (! NILP (Vprint_gensym) \ | |
1118 | && SYMBOLP (obj) \ | |
1119 | && !SYMBOL_INTERNED_P (obj))) | |
1120 | ||
0f25ecc6 RS |
1121 | /* Construct Vprint_number_table according to the structure of OBJ. |
1122 | OBJ itself and all its elements will be added to Vprint_number_table | |
1123 | recursively if it is a list, vector, compiled function, char-table, | |
1124 | string (its text properties will be traced), or a symbol that has | |
1125 | no obarray (this is for the print-gensym feature). | |
1126 | The status fields of Vprint_number_table mean whether each object appears | |
1127 | more than once in OBJ: Qnil at the first time, and Qt after that . */ | |
1128 | static void | |
971de7fb | 1129 | print_preprocess (Lisp_Object obj) |
0f25ecc6 | 1130 | { |
6b61353c | 1131 | int i; |
d311d28c | 1132 | ptrdiff_t size; |
c1132671 RS |
1133 | int loop_count = 0; |
1134 | Lisp_Object halftail; | |
1135 | ||
1136 | /* Avoid infinite recursion for circular nested structure | |
1137 | in the case where Vprint_circle is nil. */ | |
1138 | if (NILP (Vprint_circle)) | |
1139 | { | |
4ae29f89 SM |
1140 | /* Give up if we go so deep that print_object will get an error. */ |
1141 | /* See similar code in print_object. */ | |
1142 | if (print_depth >= PRINT_CIRCLE) | |
1143 | error ("Apparently circular structure being printed"); | |
1144 | ||
c1132671 RS |
1145 | for (i = 0; i < print_depth; i++) |
1146 | if (EQ (obj, being_printed[i])) | |
1147 | return; | |
1148 | being_printed[print_depth] = obj; | |
1149 | } | |
1150 | ||
c1132671 RS |
1151 | print_depth++; |
1152 | halftail = obj; | |
0f25ecc6 RS |
1153 | |
1154 | loop: | |
fb103ca9 | 1155 | if (PRINT_CIRCLE_CANDIDATE_P (obj)) |
0f25ecc6 | 1156 | { |
a65b85b5 SM |
1157 | if (!HASH_TABLE_P (Vprint_number_table)) |
1158 | { | |
1159 | Lisp_Object args[2]; | |
1160 | args[0] = QCtest; | |
1161 | args[1] = Qeq; | |
1162 | Vprint_number_table = Fmake_hash_table (2, args); | |
1163 | } | |
1164 | ||
aca2020b KH |
1165 | /* In case print-circle is nil and print-gensym is t, |
1166 | add OBJ to Vprint_number_table only when OBJ is a symbol. */ | |
1167 | if (! NILP (Vprint_circle) || SYMBOLP (obj)) | |
0f25ecc6 | 1168 | { |
a65b85b5 SM |
1169 | Lisp_Object num = Fgethash (obj, Vprint_number_table, Qnil); |
1170 | if (!NILP (num) | |
1171 | /* If Vprint_continuous_numbering is non-nil and OBJ is a gensym, | |
1172 | always print the gensym with a number. This is a special for | |
1173 | the lisp function byte-compile-output-docform. */ | |
1174 | || (!NILP (Vprint_continuous_numbering) | |
1175 | && SYMBOLP (obj) | |
1176 | && !SYMBOL_INTERNED_P (obj))) | |
1177 | { /* OBJ appears more than once. Let's remember that. */ | |
17870c01 | 1178 | if (!INTEGERP (num)) |
aca2020b | 1179 | { |
a65b85b5 SM |
1180 | print_number_index++; |
1181 | /* Negative number indicates it hasn't been printed yet. */ | |
1182 | Fputhash (obj, make_number (- print_number_index), | |
1183 | Vprint_number_table); | |
aca2020b | 1184 | } |
a65b85b5 SM |
1185 | print_depth--; |
1186 | return; | |
0f25ecc6 | 1187 | } |
a65b85b5 SM |
1188 | else |
1189 | /* OBJ is not yet recorded. Let's add to the table. */ | |
1190 | Fputhash (obj, Qt, Vprint_number_table); | |
0f25ecc6 | 1191 | } |
0f25ecc6 | 1192 | |
8e50cc2d | 1193 | switch (XTYPE (obj)) |
0f25ecc6 RS |
1194 | { |
1195 | case Lisp_String: | |
0f25ecc6 | 1196 | /* A string may have text properties, which can be circular. */ |
0c94c8d6 | 1197 | traverse_intervals_noorder (string_intervals (obj), |
8bbfc258 | 1198 | print_preprocess_string, Qnil); |
0f25ecc6 RS |
1199 | break; |
1200 | ||
1201 | case Lisp_Cons: | |
c1132671 RS |
1202 | /* Use HALFTAIL and LOOP_COUNT to detect circular lists, |
1203 | just as in print_object. */ | |
1204 | if (loop_count && EQ (obj, halftail)) | |
1205 | break; | |
0f25ecc6 RS |
1206 | print_preprocess (XCAR (obj)); |
1207 | obj = XCDR (obj); | |
c1132671 RS |
1208 | loop_count++; |
1209 | if (!(loop_count & 1)) | |
1210 | halftail = XCDR (halftail); | |
0f25ecc6 RS |
1211 | goto loop; |
1212 | ||
1213 | case Lisp_Vectorlike: | |
77b37c05 | 1214 | size = ASIZE (obj); |
6b61353c KH |
1215 | if (size & PSEUDOVECTOR_FLAG) |
1216 | size &= PSEUDOVECTOR_SIZE_MASK; | |
0f25ecc6 | 1217 | for (i = 0; i < size; i++) |
28be1ada | 1218 | print_preprocess (AREF (obj, i)); |
3e0de07f SM |
1219 | if (HASH_TABLE_P (obj)) |
1220 | { /* For hash tables, the key_and_value slot is past | |
a65b85b5 SM |
1221 | `size' because it needs to be marked specially in case |
1222 | the table is weak. */ | |
3e0de07f SM |
1223 | struct Lisp_Hash_Table *h = XHASH_TABLE (obj); |
1224 | print_preprocess (h->key_and_value); | |
1225 | } | |
ee5263af GM |
1226 | break; |
1227 | ||
1228 | default: | |
1229 | break; | |
0f25ecc6 RS |
1230 | } |
1231 | } | |
c1132671 | 1232 | print_depth--; |
0f25ecc6 RS |
1233 | } |
1234 | ||
0f25ecc6 | 1235 | static void |
971de7fb | 1236 | print_preprocess_string (INTERVAL interval, Lisp_Object arg) |
0f25ecc6 RS |
1237 | { |
1238 | print_preprocess (interval->plist); | |
1239 | } | |
0f25ecc6 | 1240 | |
971de7fb | 1241 | static void print_check_string_charset_prop (INTERVAL interval, Lisp_Object string); |
71ea13cb KH |
1242 | |
1243 | #define PRINT_STRING_NON_CHARSET_FOUND 1 | |
1244 | #define PRINT_STRING_UNSAFE_CHARSET_FOUND 2 | |
1245 | ||
4ae29f89 | 1246 | /* Bitwise or of the above macros. */ |
71ea13cb KH |
1247 | static int print_check_string_result; |
1248 | ||
1249 | static void | |
971de7fb | 1250 | print_check_string_charset_prop (INTERVAL interval, Lisp_Object string) |
71ea13cb KH |
1251 | { |
1252 | Lisp_Object val; | |
1253 | ||
1254 | if (NILP (interval->plist) | |
1255 | || (print_check_string_result == (PRINT_STRING_NON_CHARSET_FOUND | |
1256 | | PRINT_STRING_UNSAFE_CHARSET_FOUND))) | |
1257 | return; | |
1258 | for (val = interval->plist; CONSP (val) && ! EQ (XCAR (val), Qcharset); | |
1259 | val = XCDR (XCDR (val))); | |
1260 | if (! CONSP (val)) | |
1261 | { | |
1262 | print_check_string_result |= PRINT_STRING_NON_CHARSET_FOUND; | |
1263 | return; | |
1264 | } | |
1265 | if (! (print_check_string_result & PRINT_STRING_NON_CHARSET_FOUND)) | |
1266 | { | |
1267 | if (! EQ (val, interval->plist) | |
1268 | || CONSP (XCDR (XCDR (val)))) | |
1269 | print_check_string_result |= PRINT_STRING_NON_CHARSET_FOUND; | |
1270 | } | |
1271 | if (NILP (Vprint_charset_text_property) | |
1272 | || ! (print_check_string_result & PRINT_STRING_UNSAFE_CHARSET_FOUND)) | |
1273 | { | |
1274 | int i, c; | |
d311d28c PE |
1275 | ptrdiff_t charpos = interval->position; |
1276 | ptrdiff_t bytepos = string_char_to_byte (string, charpos); | |
71ea13cb KH |
1277 | Lisp_Object charset; |
1278 | ||
1279 | charset = XCAR (XCDR (val)); | |
1280 | for (i = 0; i < LENGTH (interval); i++) | |
1281 | { | |
1282 | FETCH_STRING_CHAR_ADVANCE (c, string, charpos, bytepos); | |
c80bcdbc KH |
1283 | if (! ASCII_CHAR_P (c) |
1284 | && ! EQ (CHARSET_NAME (CHAR_CHARSET (c)), charset)) | |
71ea13cb KH |
1285 | { |
1286 | print_check_string_result |= PRINT_STRING_UNSAFE_CHARSET_FOUND; | |
1287 | break; | |
1288 | } | |
1289 | } | |
1290 | } | |
1291 | } | |
1292 | ||
1293 | /* The value is (charset . nil). */ | |
1294 | static Lisp_Object print_prune_charset_plist; | |
1295 | ||
1296 | static Lisp_Object | |
971de7fb | 1297 | print_prune_string_charset (Lisp_Object string) |
71ea13cb KH |
1298 | { |
1299 | print_check_string_result = 0; | |
0c94c8d6 | 1300 | traverse_intervals (string_intervals (string), 0, |
71ea13cb KH |
1301 | print_check_string_charset_prop, string); |
1302 | if (! (print_check_string_result & PRINT_STRING_UNSAFE_CHARSET_FOUND)) | |
1303 | { | |
1304 | string = Fcopy_sequence (string); | |
1305 | if (print_check_string_result & PRINT_STRING_NON_CHARSET_FOUND) | |
1306 | { | |
1307 | if (NILP (print_prune_charset_plist)) | |
1308 | print_prune_charset_plist = Fcons (Qcharset, Qnil); | |
eabe04c0 KH |
1309 | Fremove_text_properties (make_number (0), |
1310 | make_number (SCHARS (string)), | |
71ea13cb KH |
1311 | print_prune_charset_plist, string); |
1312 | } | |
1313 | else | |
eabe04c0 KH |
1314 | Fset_text_properties (make_number (0), make_number (SCHARS (string)), |
1315 | Qnil, string); | |
71ea13cb KH |
1316 | } |
1317 | return string; | |
1318 | } | |
1319 | ||
0f25ecc6 | 1320 | static void |
971de7fb | 1321 | print_object (Lisp_Object obj, register Lisp_Object printcharfun, int escapeflag) |
0f25ecc6 | 1322 | { |
aca216ff PE |
1323 | char buf[max (sizeof "from..to..in " + 2 * INT_STRLEN_BOUND (EMACS_INT), |
1324 | max (sizeof " . #" + INT_STRLEN_BOUND (printmax_t), | |
1325 | 40))]; | |
0f25ecc6 RS |
1326 | |
1327 | QUIT; | |
1328 | ||
1329 | /* Detect circularities and truncate them. */ | |
4ae29f89 | 1330 | if (NILP (Vprint_circle)) |
0f25ecc6 | 1331 | { |
4ae29f89 SM |
1332 | /* Simple but incomplete way. */ |
1333 | int i; | |
1334 | ||
1335 | /* See similar code in print_preprocess. */ | |
1336 | if (print_depth >= PRINT_CIRCLE) | |
1337 | error ("Apparently circular structure being printed"); | |
1338 | ||
1339 | for (i = 0; i < print_depth; i++) | |
1340 | if (EQ (obj, being_printed[i])) | |
1341 | { | |
99027bdd PE |
1342 | int len = sprintf (buf, "#%d", i); |
1343 | strout (buf, len, len, printcharfun); | |
4ae29f89 SM |
1344 | return; |
1345 | } | |
1346 | being_printed[print_depth] = obj; | |
1347 | } | |
1348 | else if (PRINT_CIRCLE_CANDIDATE_P (obj)) | |
1349 | { | |
1350 | /* With the print-circle feature. */ | |
1351 | Lisp_Object num = Fgethash (obj, Vprint_number_table, Qnil); | |
1352 | if (INTEGERP (num)) | |
0f25ecc6 | 1353 | { |
4ae29f89 SM |
1354 | EMACS_INT n = XINT (num); |
1355 | if (n < 0) | |
1356 | { /* Add a prefix #n= if OBJ has not yet been printed; | |
1357 | that is, its status field is nil. */ | |
99027bdd PE |
1358 | int len = sprintf (buf, "#%"pI"d=", -n); |
1359 | strout (buf, len, len, printcharfun); | |
4ae29f89 SM |
1360 | /* OBJ is going to be printed. Remember that fact. */ |
1361 | Fputhash (obj, make_number (- n), Vprint_number_table); | |
1362 | } | |
1363 | else | |
a65b85b5 | 1364 | { |
4ae29f89 | 1365 | /* Just print #n# if OBJ has already been printed. */ |
99027bdd PE |
1366 | int len = sprintf (buf, "#%"pI"d#", n); |
1367 | strout (buf, len, len, printcharfun); | |
4ae29f89 | 1368 | return; |
a65b85b5 | 1369 | } |
0f25ecc6 | 1370 | } |
ec838c39 | 1371 | } |
ec838c39 | 1372 | |
38010d50 JB |
1373 | print_depth++; |
1374 | ||
8e50cc2d | 1375 | switch (XTYPE (obj)) |
38010d50 | 1376 | { |
2de9f71c | 1377 | case_Lisp_Int: |
99027bdd PE |
1378 | { |
1379 | int len = sprintf (buf, "%"pI"d", XINT (obj)); | |
1380 | strout (buf, len, len, printcharfun); | |
1381 | } | |
ca0569ad RS |
1382 | break; |
1383 | ||
ca0569ad RS |
1384 | case Lisp_Float: |
1385 | { | |
6e8e6bf2 | 1386 | char pigbuf[FLOAT_TO_STRING_BUFSIZE]; |
99027bdd PE |
1387 | int len = float_to_string (pigbuf, XFLOAT_DATA (obj)); |
1388 | strout (pigbuf, len, len, printcharfun); | |
ca0569ad RS |
1389 | } |
1390 | break; | |
ca0569ad RS |
1391 | |
1392 | case Lisp_String: | |
38010d50 JB |
1393 | if (!escapeflag) |
1394 | print_string (obj, printcharfun); | |
1395 | else | |
1396 | { | |
d311d28c | 1397 | register ptrdiff_t i_byte; |
38010d50 | 1398 | struct gcpro gcpro1; |
872a36d2 | 1399 | unsigned char *str; |
d311d28c | 1400 | ptrdiff_t size_byte; |
453fa987 RS |
1401 | /* 1 means we must ensure that the next character we output |
1402 | cannot be taken as part of a hex character escape. */ | |
1403 | int need_nonhex = 0; | |
db300f59 | 1404 | int multibyte = STRING_MULTIBYTE (obj); |
38010d50 | 1405 | |
7651e1f5 RS |
1406 | GCPRO1 (obj); |
1407 | ||
71ea13cb KH |
1408 | if (! EQ (Vprint_charset_text_property, Qt)) |
1409 | obj = print_prune_string_charset (obj); | |
1410 | ||
0c94c8d6 | 1411 | if (string_intervals (obj)) |
7651e1f5 RS |
1412 | { |
1413 | PRINTCHAR ('#'); | |
1414 | PRINTCHAR ('('); | |
1415 | } | |
38010d50 JB |
1416 | |
1417 | PRINTCHAR ('\"'); | |
d5db4077 KR |
1418 | str = SDATA (obj); |
1419 | size_byte = SBYTES (obj); | |
dc2a0b79 | 1420 | |
47553fa8 | 1421 | for (i_byte = 0; i_byte < size_byte;) |
38010d50 | 1422 | { |
6ddd6eee RS |
1423 | /* Here, we must convert each multi-byte form to the |
1424 | corresponding character code before handing it to PRINTCHAR. */ | |
1425 | int len; | |
dc2a0b79 RS |
1426 | int c; |
1427 | ||
db300f59 | 1428 | if (multibyte) |
872a36d2 | 1429 | { |
62a6e103 | 1430 | c = STRING_CHAR_AND_LENGTH (str + i_byte, len); |
8b4b4467 | 1431 | i_byte += len; |
872a36d2 | 1432 | } |
dc2a0b79 | 1433 | else |
872a36d2 | 1434 | c = str[i_byte++]; |
dc2a0b79 | 1435 | |
38010d50 | 1436 | QUIT; |
6ddd6eee | 1437 | |
38010d50 JB |
1438 | if (c == '\n' && print_escape_newlines) |
1439 | { | |
1440 | PRINTCHAR ('\\'); | |
1441 | PRINTCHAR ('n'); | |
1442 | } | |
c6f7982f RM |
1443 | else if (c == '\f' && print_escape_newlines) |
1444 | { | |
1445 | PRINTCHAR ('\\'); | |
1446 | PRINTCHAR ('f'); | |
1447 | } | |
ae7367d3 | 1448 | else if (multibyte |
42a5b22f | 1449 | && (CHAR_BYTE8_P (c) |
73af357a | 1450 | || (! ASCII_CHAR_P (c) && print_escape_multibyte))) |
dc2a0b79 RS |
1451 | { |
1452 | /* When multibyte is disabled, | |
ae7367d3 RS |
1453 | print multibyte string chars using hex escapes. |
1454 | For a char code that could be in a unibyte string, | |
1455 | when found in a multibyte string, always use a hex escape | |
1456 | so it reads back as multibyte. */ | |
09125ef8 | 1457 | char outbuf[50]; |
99027bdd | 1458 | int len; |
8b4b4467 KH |
1459 | |
1460 | if (CHAR_BYTE8_P (c)) | |
99027bdd | 1461 | len = sprintf (outbuf, "\\%03o", CHAR_TO_BYTE8 (c)); |
8b4b4467 | 1462 | else |
8f924df7 | 1463 | { |
99027bdd | 1464 | len = sprintf (outbuf, "\\x%04x", c); |
8f924df7 KH |
1465 | need_nonhex = 1; |
1466 | } | |
99027bdd | 1467 | strout (outbuf, len, len, printcharfun); |
dc2a0b79 | 1468 | } |
db300f59 RS |
1469 | else if (! multibyte |
1470 | && SINGLE_BYTE_CHAR_P (c) && ! ASCII_BYTE_P (c) | |
835d0be6 | 1471 | && print_escape_nonascii) |
974a6ff5 | 1472 | { |
835d0be6 RS |
1473 | /* When printing in a multibyte buffer |
1474 | or when explicitly requested, | |
974a6ff5 KH |
1475 | print single-byte non-ASCII string chars |
1476 | using octal escapes. */ | |
09125ef8 | 1477 | char outbuf[5]; |
99027bdd PE |
1478 | int len = sprintf (outbuf, "\\%03o", c); |
1479 | strout (outbuf, len, len, printcharfun); | |
974a6ff5 | 1480 | } |
38010d50 JB |
1481 | else |
1482 | { | |
453fa987 RS |
1483 | /* If we just had a hex escape, and this character |
1484 | could be taken as part of it, | |
1485 | output `\ ' to prevent that. */ | |
1b62edd6 KH |
1486 | if (need_nonhex) |
1487 | { | |
1488 | need_nonhex = 0; | |
1489 | if ((c >= 'a' && c <= 'f') | |
453fa987 | 1490 | || (c >= 'A' && c <= 'F') |
1b62edd6 | 1491 | || (c >= '0' && c <= '9')) |
1db5b1ad | 1492 | strout ("\\ ", -1, -1, printcharfun); |
1b62edd6 | 1493 | } |
453fa987 | 1494 | |
38010d50 JB |
1495 | if (c == '\"' || c == '\\') |
1496 | PRINTCHAR ('\\'); | |
1497 | PRINTCHAR (c); | |
1498 | } | |
1499 | } | |
1500 | PRINTCHAR ('\"'); | |
7651e1f5 | 1501 | |
0c94c8d6 | 1502 | if (string_intervals (obj)) |
7651e1f5 | 1503 | { |
0c94c8d6 | 1504 | traverse_intervals (string_intervals (obj), |
8bbfc258 | 1505 | 0, print_interval, printcharfun); |
7651e1f5 RS |
1506 | PRINTCHAR (')'); |
1507 | } | |
7651e1f5 | 1508 | |
38010d50 JB |
1509 | UNGCPRO; |
1510 | } | |
ca0569ad | 1511 | break; |
38010d50 | 1512 | |
ca0569ad RS |
1513 | case Lisp_Symbol: |
1514 | { | |
1515 | register int confusing; | |
d5db4077 KR |
1516 | register unsigned char *p = SDATA (SYMBOL_NAME (obj)); |
1517 | register unsigned char *end = p + SBYTES (SYMBOL_NAME (obj)); | |
2190a05e | 1518 | register int c; |
d311d28c PE |
1519 | ptrdiff_t i, i_byte; |
1520 | ptrdiff_t size_byte; | |
dc2a0b79 RS |
1521 | Lisp_Object name; |
1522 | ||
76d0b3ae | 1523 | name = SYMBOL_NAME (obj); |
ca0569ad RS |
1524 | |
1525 | if (p != end && (*p == '-' || *p == '+')) p++; | |
1526 | if (p == end) | |
1527 | confusing = 0; | |
d27497e3 RS |
1528 | /* If symbol name begins with a digit, and ends with a digit, |
1529 | and contains nothing but digits and `e', it could be treated | |
1530 | as a number. So set CONFUSING. | |
1531 | ||
1532 | Symbols that contain periods could also be taken as numbers, | |
1533 | but periods are always escaped, so we don't have to worry | |
1534 | about them here. */ | |
1535 | else if (*p >= '0' && *p <= '9' | |
1536 | && end[-1] >= '0' && end[-1] <= '9') | |
ca0569ad | 1537 | { |
e837058b RS |
1538 | while (p != end && ((*p >= '0' && *p <= '9') |
1539 | /* Needed for \2e10. */ | |
01a8d3fa | 1540 | || *p == 'e' || *p == 'E')) |
ca0569ad RS |
1541 | p++; |
1542 | confusing = (end == p); | |
1543 | } | |
d27497e3 RS |
1544 | else |
1545 | confusing = 0; | |
ca0569ad | 1546 | |
9a79b20c AS |
1547 | size_byte = SBYTES (name); |
1548 | ||
bf9f2aab | 1549 | if (! NILP (Vprint_gensym) && !SYMBOL_INTERNED_P (obj)) |
081e0581 | 1550 | { |
081e0581 EN |
1551 | PRINTCHAR ('#'); |
1552 | PRINTCHAR (':'); | |
1553 | } | |
9a79b20c AS |
1554 | else if (size_byte == 0) |
1555 | { | |
1556 | PRINTCHAR ('#'); | |
1557 | PRINTCHAR ('#'); | |
1558 | break; | |
1559 | } | |
dc2a0b79 RS |
1560 | |
1561 | for (i = 0, i_byte = 0; i_byte < size_byte;) | |
ca0569ad | 1562 | { |
6ddd6eee RS |
1563 | /* Here, we must convert each multi-byte form to the |
1564 | corresponding character code before handing it to PRINTCHAR. */ | |
eba90784 | 1565 | FETCH_STRING_CHAR_ADVANCE (c, name, i, i_byte); |
ca0569ad | 1566 | QUIT; |
09eddb56 | 1567 | |
ca0569ad RS |
1568 | if (escapeflag) |
1569 | { | |
09eddb56 RS |
1570 | if (c == '\"' || c == '\\' || c == '\'' |
1571 | || c == ';' || c == '#' || c == '(' || c == ')' | |
9a79b20c | 1572 | || c == ',' || c == '.' || c == '`' |
09eddb56 RS |
1573 | || c == '[' || c == ']' || c == '?' || c <= 040 |
1574 | || confusing) | |
ca0569ad RS |
1575 | PRINTCHAR ('\\'), confusing = 0; |
1576 | } | |
1577 | PRINTCHAR (c); | |
1578 | } | |
1579 | } | |
1580 | break; | |
1581 | ||
1582 | case Lisp_Cons: | |
38010d50 | 1583 | /* If deeper than spec'd depth, print placeholder. */ |
d4ae1f7e | 1584 | if (INTEGERP (Vprint_level) |
38010d50 | 1585 | && print_depth > XINT (Vprint_level)) |
1db5b1ad | 1586 | strout ("...", -1, -1, printcharfun); |
2f100b5c EN |
1587 | else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj))) |
1588 | && (EQ (XCAR (obj), Qquote))) | |
1589 | { | |
1590 | PRINTCHAR ('\''); | |
0f25ecc6 | 1591 | print_object (XCAR (XCDR (obj)), printcharfun, escapeflag); |
2f100b5c EN |
1592 | } |
1593 | else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj))) | |
1594 | && (EQ (XCAR (obj), Qfunction))) | |
1595 | { | |
1596 | PRINTCHAR ('#'); | |
1597 | PRINTCHAR ('\''); | |
0f25ecc6 | 1598 | print_object (XCAR (XCDR (obj)), printcharfun, escapeflag); |
2f100b5c EN |
1599 | } |
1600 | else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj))) | |
a22dec27 SM |
1601 | && ((EQ (XCAR (obj), Qbackquote)))) |
1602 | { | |
1603 | print_object (XCAR (obj), printcharfun, 0); | |
1604 | new_backquote_output++; | |
1605 | print_object (XCAR (XCDR (obj)), printcharfun, escapeflag); | |
1606 | new_backquote_output--; | |
1607 | } | |
1608 | else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj))) | |
1609 | && new_backquote_output | |
2f100b5c EN |
1610 | && ((EQ (XCAR (obj), Qbackquote) |
1611 | || EQ (XCAR (obj), Qcomma) | |
1612 | || EQ (XCAR (obj), Qcomma_at) | |
1613 | || EQ (XCAR (obj), Qcomma_dot)))) | |
1614 | { | |
0f25ecc6 | 1615 | print_object (XCAR (obj), printcharfun, 0); |
a22dec27 | 1616 | new_backquote_output--; |
0f25ecc6 | 1617 | print_object (XCAR (XCDR (obj)), printcharfun, escapeflag); |
a22dec27 | 1618 | new_backquote_output++; |
2f100b5c | 1619 | } |
e0f93814 | 1620 | else |
38010d50 | 1621 | { |
e0f93814 | 1622 | PRINTCHAR ('('); |
177c0ea7 | 1623 | |
38010d50 | 1624 | { |
aca216ff | 1625 | printmax_t i, print_length; |
1eab22b5 | 1626 | Lisp_Object halftail = obj; |
e0f93814 | 1627 | |
9ab8560d | 1628 | /* Negative values of print-length are invalid in CL. |
42ac1ed4 GM |
1629 | Treat them like nil, as CMUCL does. */ |
1630 | if (NATNUMP (Vprint_length)) | |
1631 | print_length = XFASTINT (Vprint_length); | |
1632 | else | |
aca216ff | 1633 | print_length = TYPE_MAXIMUM (printmax_t); |
42ac1ed4 GM |
1634 | |
1635 | i = 0; | |
e0f93814 | 1636 | while (CONSP (obj)) |
38010d50 | 1637 | { |
1eab22b5 | 1638 | /* Detect circular list. */ |
0f25ecc6 | 1639 | if (NILP (Vprint_circle)) |
1eab22b5 | 1640 | { |
53964682 | 1641 | /* Simple but incomplete way. */ |
0f25ecc6 RS |
1642 | if (i != 0 && EQ (obj, halftail)) |
1643 | { | |
99027bdd PE |
1644 | int len = sprintf (buf, " . #%"pMd, i / 2); |
1645 | strout (buf, len, len, printcharfun); | |
0f25ecc6 RS |
1646 | goto end_of_list; |
1647 | } | |
1648 | } | |
1649 | else | |
1650 | { | |
1651 | /* With the print-circle feature. */ | |
1652 | if (i != 0) | |
1653 | { | |
a65b85b5 SM |
1654 | Lisp_Object num = Fgethash (obj, Vprint_number_table, Qnil); |
1655 | if (INTEGERP (num)) | |
36de6a04 | 1656 | { |
1db5b1ad | 1657 | strout (" . ", 3, 3, printcharfun); |
36de6a04 AS |
1658 | print_object (obj, printcharfun, escapeflag); |
1659 | goto end_of_list; | |
1660 | } | |
0f25ecc6 | 1661 | } |
1eab22b5 | 1662 | } |
177c0ea7 | 1663 | |
aca216ff | 1664 | if (i) |
e0f93814 | 1665 | PRINTCHAR (' '); |
177c0ea7 | 1666 | |
aca216ff | 1667 | if (print_length <= i) |
e0f93814 | 1668 | { |
1db5b1ad | 1669 | strout ("...", 3, 3, printcharfun); |
0f25ecc6 | 1670 | goto end_of_list; |
e0f93814 | 1671 | } |
177c0ea7 | 1672 | |
aca216ff | 1673 | i++; |
0f25ecc6 | 1674 | print_object (XCAR (obj), printcharfun, escapeflag); |
177c0ea7 | 1675 | |
2f100b5c | 1676 | obj = XCDR (obj); |
1eab22b5 RS |
1677 | if (!(i & 1)) |
1678 | halftail = XCDR (halftail); | |
38010d50 | 1679 | } |
38010d50 | 1680 | } |
42ac1ed4 GM |
1681 | |
1682 | /* OBJ non-nil here means it's the end of a dotted list. */ | |
2f100b5c | 1683 | if (!NILP (obj)) |
e0f93814 | 1684 | { |
1db5b1ad | 1685 | strout (" . ", 3, 3, printcharfun); |
0f25ecc6 | 1686 | print_object (obj, printcharfun, escapeflag); |
e0f93814 | 1687 | } |
177c0ea7 | 1688 | |
0f25ecc6 | 1689 | end_of_list: |
e0f93814 | 1690 | PRINTCHAR (')'); |
38010d50 | 1691 | } |
ca0569ad RS |
1692 | break; |
1693 | ||
1694 | case Lisp_Vectorlike: | |
1695 | if (PROCESSP (obj)) | |
1696 | { | |
1697 | if (escapeflag) | |
1698 | { | |
1db5b1ad | 1699 | strout ("#<process ", -1, -1, printcharfun); |
4d2b044c | 1700 | print_string (XPROCESS (obj)->name, printcharfun); |
ca0569ad RS |
1701 | PRINTCHAR ('>'); |
1702 | } | |
1703 | else | |
4d2b044c | 1704 | print_string (XPROCESS (obj)->name, printcharfun); |
ca0569ad | 1705 | } |
ed2c35ef RS |
1706 | else if (BOOL_VECTOR_P (obj)) |
1707 | { | |
29ebea3b | 1708 | ptrdiff_t i; |
99027bdd PE |
1709 | int len; |
1710 | unsigned char c; | |
ed2c35ef | 1711 | struct gcpro gcpro1; |
d311d28c | 1712 | ptrdiff_t size_in_chars |
4b5af5e4 AS |
1713 | = ((XBOOL_VECTOR (obj)->size + BOOL_VECTOR_BITS_PER_CHAR - 1) |
1714 | / BOOL_VECTOR_BITS_PER_CHAR); | |
ed2c35ef RS |
1715 | |
1716 | GCPRO1 (obj); | |
1717 | ||
1718 | PRINTCHAR ('#'); | |
1719 | PRINTCHAR ('&'); | |
99027bdd PE |
1720 | len = sprintf (buf, "%"pI"d", XBOOL_VECTOR (obj)->size); |
1721 | strout (buf, len, len, printcharfun); | |
ed2c35ef | 1722 | PRINTCHAR ('\"'); |
a40384bc | 1723 | |
42ac1ed4 | 1724 | /* Don't print more characters than the specified maximum. |
9ab8560d | 1725 | Negative values of print-length are invalid. Treat them |
42ac1ed4 GM |
1726 | like a print-length of nil. */ |
1727 | if (NATNUMP (Vprint_length) | |
1728 | && XFASTINT (Vprint_length) < size_in_chars) | |
1729 | size_in_chars = XFASTINT (Vprint_length); | |
a40384bc | 1730 | |
ed2c35ef RS |
1731 | for (i = 0; i < size_in_chars; i++) |
1732 | { | |
1733 | QUIT; | |
1734 | c = XBOOL_VECTOR (obj)->data[i]; | |
f10fdbfd | 1735 | if (c == '\n' && print_escape_newlines) |
ed2c35ef RS |
1736 | { |
1737 | PRINTCHAR ('\\'); | |
1738 | PRINTCHAR ('n'); | |
1739 | } | |
1740 | else if (c == '\f' && print_escape_newlines) | |
1741 | { | |
1742 | PRINTCHAR ('\\'); | |
1743 | PRINTCHAR ('f'); | |
1744 | } | |
4b5af5e4 AS |
1745 | else if (c > '\177') |
1746 | { | |
1747 | /* Use octal escapes to avoid encoding issues. */ | |
1748 | PRINTCHAR ('\\'); | |
1749 | PRINTCHAR ('0' + ((c >> 6) & 3)); | |
1750 | PRINTCHAR ('0' + ((c >> 3) & 7)); | |
1751 | PRINTCHAR ('0' + (c & 7)); | |
1752 | } | |
ed2c35ef RS |
1753 | else |
1754 | { | |
1755 | if (c == '\"' || c == '\\') | |
1756 | PRINTCHAR ('\\'); | |
1757 | PRINTCHAR (c); | |
1758 | } | |
1759 | } | |
1760 | PRINTCHAR ('\"'); | |
1761 | ||
1762 | UNGCPRO; | |
1763 | } | |
ca0569ad RS |
1764 | else if (SUBRP (obj)) |
1765 | { | |
1db5b1ad JB |
1766 | strout ("#<subr ", -1, -1, printcharfun); |
1767 | strout (XSUBR (obj)->symbol_name, -1, -1, printcharfun); | |
ca0569ad RS |
1768 | PRINTCHAR ('>'); |
1769 | } | |
ca0569ad RS |
1770 | else if (WINDOWP (obj)) |
1771 | { | |
99027bdd | 1772 | int len; |
1db5b1ad | 1773 | strout ("#<window ", -1, -1, printcharfun); |
45942c7d | 1774 | len = sprintf (buf, "%d", XWINDOW (obj)->sequence_number); |
99027bdd | 1775 | strout (buf, len, len, printcharfun); |
d3d50620 | 1776 | if (!NILP (XWINDOW (obj)->buffer)) |
ca0569ad | 1777 | { |
1db5b1ad | 1778 | strout (" on ", -1, -1, printcharfun); |
d3d50620 | 1779 | print_string (BVAR (XBUFFER (XWINDOW (obj)->buffer), name), |
3a45383a | 1780 | printcharfun); |
ca0569ad RS |
1781 | } |
1782 | PRINTCHAR ('>'); | |
1783 | } | |
f76c8b1e SM |
1784 | else if (TERMINALP (obj)) |
1785 | { | |
99027bdd | 1786 | int len; |
f76c8b1e | 1787 | struct terminal *t = XTERMINAL (obj); |
1db5b1ad | 1788 | strout ("#<terminal ", -1, -1, printcharfun); |
99027bdd PE |
1789 | len = sprintf (buf, "%d", t->id); |
1790 | strout (buf, len, len, printcharfun); | |
f76c8b1e SM |
1791 | if (t->name) |
1792 | { | |
1db5b1ad JB |
1793 | strout (" on ", -1, -1, printcharfun); |
1794 | strout (t->name, -1, -1, printcharfun); | |
f76c8b1e SM |
1795 | } |
1796 | PRINTCHAR ('>'); | |
1797 | } | |
7eb03302 GM |
1798 | else if (HASH_TABLE_P (obj)) |
1799 | { | |
1800 | struct Lisp_Hash_Table *h = XHASH_TABLE (obj); | |
d311d28c PE |
1801 | ptrdiff_t i; |
1802 | ptrdiff_t real_size, size; | |
99027bdd | 1803 | int len; |
f19a0f5b | 1804 | #if 0 |
1db5b1ad | 1805 | strout ("#<hash-table", -1, -1, printcharfun); |
7eb03302 GM |
1806 | if (SYMBOLP (h->test)) |
1807 | { | |
1808 | PRINTCHAR (' '); | |
1809 | PRINTCHAR ('\''); | |
1db5b1ad | 1810 | strout (SDATA (SYMBOL_NAME (h->test)), -1, -1, printcharfun); |
7eb03302 | 1811 | PRINTCHAR (' '); |
1db5b1ad | 1812 | strout (SDATA (SYMBOL_NAME (h->weak)), -1, -1, printcharfun); |
7eb03302 | 1813 | PRINTCHAR (' '); |
99027bdd PE |
1814 | len = sprintf (buf, "%"pD"d/%"pD"d", h->count, ASIZE (h->next)); |
1815 | strout (buf, len, len, printcharfun); | |
7eb03302 | 1816 | } |
99027bdd PE |
1817 | len = sprintf (buf, " %p", h); |
1818 | strout (buf, len, len, printcharfun); | |
7eb03302 | 1819 | PRINTCHAR ('>'); |
f19a0f5b TZ |
1820 | #endif |
1821 | /* Implement a readable output, e.g.: | |
1822 | #s(hash-table size 2 test equal data (k1 v1 k2 v2)) */ | |
1823 | /* Always print the size. */ | |
99027bdd PE |
1824 | len = sprintf (buf, "#s(hash-table size %"pD"d", ASIZE (h->next)); |
1825 | strout (buf, len, len, printcharfun); | |
f19a0f5b TZ |
1826 | |
1827 | if (!NILP (h->test)) | |
1828 | { | |
1db5b1ad | 1829 | strout (" test ", -1, -1, printcharfun); |
617a0e83 | 1830 | print_object (h->test, printcharfun, escapeflag); |
f19a0f5b TZ |
1831 | } |
1832 | ||
1833 | if (!NILP (h->weak)) | |
1834 | { | |
1db5b1ad | 1835 | strout (" weakness ", -1, -1, printcharfun); |
617a0e83 | 1836 | print_object (h->weak, printcharfun, escapeflag); |
f19a0f5b TZ |
1837 | } |
1838 | ||
1839 | if (!NILP (h->rehash_size)) | |
1840 | { | |
1db5b1ad | 1841 | strout (" rehash-size ", -1, -1, printcharfun); |
617a0e83 | 1842 | print_object (h->rehash_size, printcharfun, escapeflag); |
f19a0f5b TZ |
1843 | } |
1844 | ||
1845 | if (!NILP (h->rehash_threshold)) | |
1846 | { | |
1db5b1ad | 1847 | strout (" rehash-threshold ", -1, -1, printcharfun); |
617a0e83 | 1848 | print_object (h->rehash_threshold, printcharfun, escapeflag); |
f19a0f5b TZ |
1849 | } |
1850 | ||
1db5b1ad | 1851 | strout (" data ", -1, -1, printcharfun); |
f19a0f5b TZ |
1852 | |
1853 | /* Print the data here as a plist. */ | |
b0ca0f33 DN |
1854 | real_size = HASH_TABLE_SIZE (h); |
1855 | size = real_size; | |
f19a0f5b TZ |
1856 | |
1857 | /* Don't print more elements than the specified maximum. */ | |
1858 | if (NATNUMP (Vprint_length) | |
1859 | && XFASTINT (Vprint_length) < size) | |
1860 | size = XFASTINT (Vprint_length); | |
42a5b22f | 1861 | |
f19a0f5b TZ |
1862 | PRINTCHAR ('('); |
1863 | for (i = 0; i < size; i++) | |
1864 | if (!NILP (HASH_HASH (h, i))) | |
1865 | { | |
1866 | if (i) PRINTCHAR (' '); | |
617a0e83 | 1867 | print_object (HASH_KEY (h, i), printcharfun, escapeflag); |
f19a0f5b | 1868 | PRINTCHAR (' '); |
617a0e83 | 1869 | print_object (HASH_VALUE (h, i), printcharfun, escapeflag); |
f19a0f5b TZ |
1870 | } |
1871 | ||
1872 | if (size < real_size) | |
1db5b1ad | 1873 | strout (" ...", 4, 4, printcharfun); |
f19a0f5b TZ |
1874 | |
1875 | PRINTCHAR (')'); | |
1876 | PRINTCHAR (')'); | |
1877 | ||
7eb03302 | 1878 | } |
908b0ae5 RS |
1879 | else if (BUFFERP (obj)) |
1880 | { | |
4b4deea2 | 1881 | if (NILP (BVAR (XBUFFER (obj), name))) |
1db5b1ad | 1882 | strout ("#<killed buffer>", -1, -1, printcharfun); |
908b0ae5 RS |
1883 | else if (escapeflag) |
1884 | { | |
1db5b1ad | 1885 | strout ("#<buffer ", -1, -1, printcharfun); |
4b4deea2 | 1886 | print_string (BVAR (XBUFFER (obj), name), printcharfun); |
908b0ae5 RS |
1887 | PRINTCHAR ('>'); |
1888 | } | |
1889 | else | |
4b4deea2 | 1890 | print_string (BVAR (XBUFFER (obj), name), printcharfun); |
908b0ae5 | 1891 | } |
ca0569ad RS |
1892 | else if (WINDOW_CONFIGURATIONP (obj)) |
1893 | { | |
1db5b1ad | 1894 | strout ("#<window-configuration>", -1, -1, printcharfun); |
ca0569ad | 1895 | } |
ca0569ad RS |
1896 | else if (FRAMEP (obj)) |
1897 | { | |
99027bdd | 1898 | int len; |
e69b0960 | 1899 | Lisp_Object frame_name = XFRAME (obj)->name; |
436bc8e0 | 1900 | |
ca0569ad RS |
1901 | strout ((FRAME_LIVE_P (XFRAME (obj)) |
1902 | ? "#<frame " : "#<dead frame "), | |
1db5b1ad | 1903 | -1, -1, printcharfun); |
436bc8e0 EZ |
1904 | if (!STRINGP (frame_name)) |
1905 | { | |
1906 | /* A frame could be too young and have no name yet; | |
1907 | don't crash. */ | |
1908 | if (SYMBOLP (frame_name)) | |
1909 | frame_name = Fsymbol_name (frame_name); | |
1910 | else /* can't happen: name should be either nil or string */ | |
1911 | frame_name = build_string ("*INVALID*FRAME*NAME*"); | |
1912 | } | |
1913 | print_string (frame_name, printcharfun); | |
99027bdd PE |
1914 | len = sprintf (buf, " %p", XFRAME (obj)); |
1915 | strout (buf, len, len, printcharfun); | |
ca0569ad RS |
1916 | PRINTCHAR ('>'); |
1917 | } | |
2a7b7982 KH |
1918 | else if (FONTP (obj)) |
1919 | { | |
d311d28c | 1920 | int i; |
2a7b7982 KH |
1921 | |
1922 | if (! FONT_OBJECT_P (obj)) | |
1923 | { | |
1924 | if (FONT_SPEC_P (obj)) | |
1db5b1ad | 1925 | strout ("#<font-spec", -1, -1, printcharfun); |
2a7b7982 | 1926 | else |
1db5b1ad | 1927 | strout ("#<font-entity", -1, -1, printcharfun); |
2a7b7982 KH |
1928 | for (i = 0; i < FONT_SPEC_MAX; i++) |
1929 | { | |
1930 | PRINTCHAR (' '); | |
1931 | if (i < FONT_WEIGHT_INDEX || i > FONT_WIDTH_INDEX) | |
1932 | print_object (AREF (obj, i), printcharfun, escapeflag); | |
1933 | else | |
1934 | print_object (font_style_symbolic (obj, i, 0), | |
1935 | printcharfun, escapeflag); | |
1936 | } | |
1937 | } | |
1938 | else | |
1939 | { | |
1db5b1ad | 1940 | strout ("#<font-object ", -1, -1, printcharfun); |
2a7b7982 KH |
1941 | print_object (AREF (obj, FONT_NAME_INDEX), printcharfun, |
1942 | escapeflag); | |
1943 | } | |
1944 | PRINTCHAR ('>'); | |
1945 | } | |
ca0569ad RS |
1946 | else |
1947 | { | |
d311d28c | 1948 | ptrdiff_t size = ASIZE (obj); |
ca0569ad RS |
1949 | if (COMPILEDP (obj)) |
1950 | { | |
1951 | PRINTCHAR ('#'); | |
1952 | size &= PSEUDOVECTOR_SIZE_MASK; | |
1953 | } | |
8b4b4467 | 1954 | if (CHAR_TABLE_P (obj) || SUB_CHAR_TABLE_P (obj)) |
ed2c35ef RS |
1955 | { |
1956 | /* We print a char-table as if it were a vector, | |
1957 | lumping the parent and default slots in with the | |
1958 | character slots. But we add #^ as a prefix. */ | |
223509a3 KH |
1959 | |
1960 | /* Make each lowest sub_char_table start a new line. | |
1961 | Otherwise we'll make a line extremely long, which | |
1962 | results in slow redisplay. */ | |
1963 | if (SUB_CHAR_TABLE_P (obj) | |
1964 | && XINT (XSUB_CHAR_TABLE (obj)->depth) == 3) | |
1965 | PRINTCHAR ('\n'); | |
ed2c35ef RS |
1966 | PRINTCHAR ('#'); |
1967 | PRINTCHAR ('^'); | |
3701b5de KH |
1968 | if (SUB_CHAR_TABLE_P (obj)) |
1969 | PRINTCHAR ('^'); | |
ed2c35ef RS |
1970 | size &= PSEUDOVECTOR_SIZE_MASK; |
1971 | } | |
00d76abc KH |
1972 | if (size & PSEUDOVECTOR_FLAG) |
1973 | goto badtype; | |
ca0569ad RS |
1974 | |
1975 | PRINTCHAR ('['); | |
38010d50 | 1976 | { |
ca0569ad RS |
1977 | register int i; |
1978 | register Lisp_Object tem; | |
d311d28c | 1979 | ptrdiff_t real_size = size; |
a40384bc RS |
1980 | |
1981 | /* Don't print more elements than the specified maximum. */ | |
42ac1ed4 GM |
1982 | if (NATNUMP (Vprint_length) |
1983 | && XFASTINT (Vprint_length) < size) | |
1984 | size = XFASTINT (Vprint_length); | |
a40384bc | 1985 | |
ca0569ad RS |
1986 | for (i = 0; i < size; i++) |
1987 | { | |
1988 | if (i) PRINTCHAR (' '); | |
28be1ada | 1989 | tem = AREF (obj, i); |
0f25ecc6 | 1990 | print_object (tem, printcharfun, escapeflag); |
ca0569ad | 1991 | } |
d6ac884e | 1992 | if (size < real_size) |
1db5b1ad | 1993 | strout (" ...", 4, 4, printcharfun); |
38010d50 | 1994 | } |
ca0569ad RS |
1995 | PRINTCHAR (']'); |
1996 | } | |
1997 | break; | |
1998 | ||
ca0569ad | 1999 | case Lisp_Misc: |
5db20f08 | 2000 | switch (XMISCTYPE (obj)) |
38010d50 | 2001 | { |
00d76abc | 2002 | case Lisp_Misc_Marker: |
1db5b1ad | 2003 | strout ("#<marker ", -1, -1, printcharfun); |
087e3c46 KH |
2004 | /* Do you think this is necessary? */ |
2005 | if (XMARKER (obj)->insertion_type != 0) | |
1db5b1ad | 2006 | strout ("(moves after insertion) ", -1, -1, printcharfun); |
cd3587c1 | 2007 | if (! XMARKER (obj)->buffer) |
1db5b1ad | 2008 | strout ("in no buffer", -1, -1, printcharfun); |
ca0569ad RS |
2009 | else |
2010 | { | |
99027bdd PE |
2011 | int len = sprintf (buf, "at %"pD"d", marker_position (obj)); |
2012 | strout (buf, len, len, printcharfun); | |
1db5b1ad | 2013 | strout (" in ", -1, -1, printcharfun); |
4b4deea2 | 2014 | print_string (BVAR (XMARKER (obj)->buffer, name), printcharfun); |
ca0569ad | 2015 | } |
38010d50 | 2016 | PRINTCHAR ('>'); |
908b0ae5 | 2017 | break; |
00d76abc KH |
2018 | |
2019 | case Lisp_Misc_Overlay: | |
1db5b1ad | 2020 | strout ("#<overlay ", -1, -1, printcharfun); |
cd3587c1 | 2021 | if (! XMARKER (OVERLAY_START (obj))->buffer) |
1db5b1ad | 2022 | strout ("in no buffer", -1, -1, printcharfun); |
ca0569ad RS |
2023 | else |
2024 | { | |
99027bdd PE |
2025 | int len = sprintf (buf, "from %"pD"d to %"pD"d in ", |
2026 | marker_position (OVERLAY_START (obj)), | |
2027 | marker_position (OVERLAY_END (obj))); | |
2028 | strout (buf, len, len, printcharfun); | |
4b4deea2 | 2029 | print_string (BVAR (XMARKER (OVERLAY_START (obj))->buffer, name), |
ca0569ad RS |
2030 | printcharfun); |
2031 | } | |
2032 | PRINTCHAR ('>'); | |
908b0ae5 | 2033 | break; |
00d76abc KH |
2034 | |
2035 | /* Remaining cases shouldn't happen in normal usage, but let's print | |
2036 | them anyway for the benefit of the debugger. */ | |
2037 | case Lisp_Misc_Free: | |
1db5b1ad | 2038 | strout ("#<misc free cell>", -1, -1, printcharfun); |
00d76abc KH |
2039 | break; |
2040 | ||
c069fee4 | 2041 | case Lisp_Misc_Save_Value: |
1db5b1ad | 2042 | strout ("#<save_value ", -1, -1, printcharfun); |
99027bdd PE |
2043 | { |
2044 | int len = sprintf (buf, "ptr=%p int=%"pD"d", | |
2045 | XSAVE_VALUE (obj)->pointer, | |
2046 | XSAVE_VALUE (obj)->integer); | |
2047 | strout (buf, len, len, printcharfun); | |
2048 | } | |
c069fee4 KS |
2049 | PRINTCHAR ('>'); |
2050 | break; | |
2051 | ||
00d76abc KH |
2052 | default: |
2053 | goto badtype; | |
e0f93814 | 2054 | } |
00d76abc | 2055 | break; |
ca0569ad RS |
2056 | |
2057 | default: | |
00d76abc | 2058 | badtype: |
ca0569ad | 2059 | { |
99027bdd | 2060 | int len; |
ca0569ad RS |
2061 | /* We're in trouble if this happens! |
2062 | Probably should just abort () */ | |
1db5b1ad | 2063 | strout ("#<EMACS BUG: INVALID DATATYPE ", -1, -1, printcharfun); |
00d76abc | 2064 | if (MISCP (obj)) |
99027bdd | 2065 | len = sprintf (buf, "(MISC 0x%04x)", (int) XMISCTYPE (obj)); |
00d76abc | 2066 | else if (VECTORLIKEP (obj)) |
99027bdd | 2067 | len = sprintf (buf, "(PVEC 0x%08"pD"x)", ASIZE (obj)); |
00d76abc | 2068 | else |
99027bdd PE |
2069 | len = sprintf (buf, "(0x%02x)", (int) XTYPE (obj)); |
2070 | strout (buf, len, len, printcharfun); | |
ca0569ad | 2071 | strout (" Save your buffers immediately and please report this bug>", |
1db5b1ad | 2072 | -1, -1, printcharfun); |
ca0569ad | 2073 | } |
38010d50 JB |
2074 | } |
2075 | ||
2076 | print_depth--; | |
2077 | } | |
2078 | \f | |
7651e1f5 RS |
2079 | |
2080 | /* Print a description of INTERVAL using PRINTCHARFUN. | |
2081 | This is part of printing a string that has text properties. */ | |
2082 | ||
2083 | void | |
971de7fb | 2084 | print_interval (INTERVAL interval, Lisp_Object printcharfun) |
7651e1f5 | 2085 | { |
71ea13cb KH |
2086 | if (NILP (interval->plist)) |
2087 | return; | |
30503c0b | 2088 | PRINTCHAR (' '); |
0f25ecc6 | 2089 | print_object (make_number (interval->position), printcharfun, 1); |
7651e1f5 | 2090 | PRINTCHAR (' '); |
0f25ecc6 | 2091 | print_object (make_number (interval->position + LENGTH (interval)), |
cd3587c1 | 2092 | printcharfun, 1); |
7651e1f5 | 2093 | PRINTCHAR (' '); |
0f25ecc6 | 2094 | print_object (interval->plist, printcharfun, 1); |
7651e1f5 RS |
2095 | } |
2096 | ||
7651e1f5 | 2097 | \f |
38010d50 | 2098 | void |
971de7fb | 2099 | syms_of_print (void) |
38010d50 | 2100 | { |
cd3520a4 | 2101 | DEFSYM (Qtemp_buffer_setup_hook, "temp-buffer-setup-hook"); |
d9c21094 | 2102 | |
29208e82 | 2103 | DEFVAR_LISP ("standard-output", Vstandard_output, |
8c1a1077 PJ |
2104 | doc: /* Output stream `print' uses by default for outputting a character. |
2105 | This may be any function of one argument. | |
2106 | It may also be a buffer (output is inserted before point) | |
2107 | or a marker (output is inserted and the marker is advanced) | |
2108 | or the symbol t (output appears in the echo area). */); | |
38010d50 | 2109 | Vstandard_output = Qt; |
cd3520a4 | 2110 | DEFSYM (Qstandard_output, "standard-output"); |
38010d50 | 2111 | |
29208e82 | 2112 | DEFVAR_LISP ("float-output-format", Vfloat_output_format, |
8c1a1077 PJ |
2113 | doc: /* The format descriptor string used to print floats. |
2114 | This is a %-spec like those accepted by `printf' in C, | |
2115 | but with some restrictions. It must start with the two characters `%.'. | |
2116 | After that comes an integer precision specification, | |
2117 | and then a letter which controls the format. | |
2118 | The letters allowed are `e', `f' and `g'. | |
2119 | Use `e' for exponential notation \"DIG.DIGITSeEXPT\" | |
2120 | Use `f' for decimal point notation \"DIGITS.DIGITS\". | |
2121 | Use `g' to choose the shorter of those two formats for the number at hand. | |
2122 | The precision in any of these cases is the number of digits following | |
2123 | the decimal point. With `f', a precision of 0 means to omit the | |
2124 | decimal point. 0 is not allowed with `e' or `g'. | |
2125 | ||
2126 | A value of nil means to use the shortest notation | |
2127 | that represents the number without losing information. */); | |
38010d50 | 2128 | Vfloat_output_format = Qnil; |
cd3520a4 | 2129 | DEFSYM (Qfloat_output_format, "float-output-format"); |
38010d50 | 2130 | |
29208e82 | 2131 | DEFVAR_LISP ("print-length", Vprint_length, |
8c1a1077 PJ |
2132 | doc: /* Maximum length of list to print before abbreviating. |
2133 | A value of nil means no limit. See also `eval-expression-print-length'. */); | |
38010d50 JB |
2134 | Vprint_length = Qnil; |
2135 | ||
29208e82 | 2136 | DEFVAR_LISP ("print-level", Vprint_level, |
8c1a1077 PJ |
2137 | doc: /* Maximum depth of list nesting to print before abbreviating. |
2138 | A value of nil means no limit. See also `eval-expression-print-level'. */); | |
38010d50 JB |
2139 | Vprint_level = Qnil; |
2140 | ||
29208e82 | 2141 | DEFVAR_BOOL ("print-escape-newlines", print_escape_newlines, |
8c1a1077 PJ |
2142 | doc: /* Non-nil means print newlines in strings as `\\n'. |
2143 | Also print formfeeds as `\\f'. */); | |
38010d50 JB |
2144 | print_escape_newlines = 0; |
2145 | ||
29208e82 | 2146 | DEFVAR_BOOL ("print-escape-nonascii", print_escape_nonascii, |
8c1a1077 PJ |
2147 | doc: /* Non-nil means print unibyte non-ASCII chars in strings as \\OOO. |
2148 | \(OOO is the octal representation of the character code.) | |
249c0f71 RS |
2149 | Only single-byte characters are affected, and only in `prin1'. |
2150 | When the output goes in a multibyte buffer, this feature is | |
2151 | enabled regardless of the value of the variable. */); | |
38940e93 RS |
2152 | print_escape_nonascii = 0; |
2153 | ||
29208e82 | 2154 | DEFVAR_BOOL ("print-escape-multibyte", print_escape_multibyte, |
8c1a1077 PJ |
2155 | doc: /* Non-nil means print multibyte characters in strings as \\xXXXX. |
2156 | \(XXXX is the hex representation of the character code.) | |
2157 | This affects only `prin1'. */); | |
835d0be6 RS |
2158 | print_escape_multibyte = 0; |
2159 | ||
29208e82 | 2160 | DEFVAR_BOOL ("print-quoted", print_quoted, |
8c1a1077 | 2161 | doc: /* Non-nil means print quoted forms with reader syntax. |
db75cb5f | 2162 | I.e., (quote foo) prints as 'foo, (function foo) as #'foo. */); |
2f100b5c EN |
2163 | print_quoted = 0; |
2164 | ||
29208e82 | 2165 | DEFVAR_LISP ("print-gensym", Vprint_gensym, |
8c1a1077 PJ |
2166 | doc: /* Non-nil means print uninterned symbols so they will read as uninterned. |
2167 | I.e., the value of (make-symbol \"foobar\") prints as #:foobar. | |
2168 | When the uninterned symbol appears within a recursive data structure, | |
2169 | and the symbol appears more than once, in addition use the #N# and #N= | |
2170 | constructs as needed, so that multiple references to the same symbol are | |
2171 | shared once again when the text is read back. */); | |
e0f69431 RS |
2172 | Vprint_gensym = Qnil; |
2173 | ||
29208e82 | 2174 | DEFVAR_LISP ("print-circle", Vprint_circle, |
fb7ada5f | 2175 | doc: /* Non-nil means print recursive structures using #N= and #N# syntax. |
8c1a1077 PJ |
2176 | If nil, printing proceeds recursively and may lead to |
2177 | `max-lisp-eval-depth' being exceeded or an error may occur: | |
2178 | \"Apparently circular structure being printed.\" Also see | |
2179 | `print-length' and `print-level'. | |
2180 | If non-nil, shared substructures anywhere in the structure are printed | |
2181 | with `#N=' before the first occurrence (in the order of the print | |
2182 | representation) and `#N#' in place of each subsequent occurrence, | |
2183 | where N is a positive decimal integer. */); | |
0f25ecc6 RS |
2184 | Vprint_circle = Qnil; |
2185 | ||
29208e82 | 2186 | DEFVAR_LISP ("print-continuous-numbering", Vprint_continuous_numbering, |
fb7ada5f | 2187 | doc: /* Non-nil means number continuously across print calls. |
8c1a1077 PJ |
2188 | This affects the numbers printed for #N= labels and #M# references. |
2189 | See also `print-circle', `print-gensym', and `print-number-table'. | |
2190 | This variable should not be set with `setq'; bind it with a `let' instead. */); | |
0f25ecc6 RS |
2191 | Vprint_continuous_numbering = Qnil; |
2192 | ||
29208e82 | 2193 | DEFVAR_LISP ("print-number-table", Vprint_number_table, |
8c1a1077 PJ |
2194 | doc: /* A vector used internally to produce `#N=' labels and `#N#' references. |
2195 | The Lisp printer uses this vector to detect Lisp objects referenced more | |
e6d4cddd RS |
2196 | than once. |
2197 | ||
2198 | When you bind `print-continuous-numbering' to t, you should probably | |
2199 | also bind `print-number-table' to nil. This ensures that the value of | |
2200 | `print-number-table' can be garbage-collected once the printing is | |
2201 | done. If all elements of `print-number-table' are nil, it means that | |
2202 | the printing done so far has not found any shared structure or objects | |
2203 | that need to be recorded in the table. */); | |
0f25ecc6 | 2204 | Vprint_number_table = Qnil; |
081e0581 | 2205 | |
29208e82 | 2206 | DEFVAR_LISP ("print-charset-text-property", Vprint_charset_text_property, |
71ea13cb KH |
2207 | doc: /* A flag to control printing of `charset' text property on printing a string. |
2208 | The value must be nil, t, or `default'. | |
2209 | ||
2210 | If the value is nil, don't print the text property `charset'. | |
2211 | ||
2212 | If the value is t, always print the text property `charset'. | |
2213 | ||
2214 | If the value is `default', print the text property `charset' only when | |
2215 | the value is different from what is guessed in the current charset | |
dedbd91c | 2216 | priorities. */); |
71ea13cb KH |
2217 | Vprint_charset_text_property = Qdefault; |
2218 | ||
38010d50 JB |
2219 | /* prin1_to_string_buffer initialized in init_buffer_once in buffer.c */ |
2220 | staticpro (&Vprin1_to_string_buffer); | |
2221 | ||
2222 | defsubr (&Sprin1); | |
2223 | defsubr (&Sprin1_to_string); | |
113620cc | 2224 | defsubr (&Serror_message_string); |
38010d50 JB |
2225 | defsubr (&Sprinc); |
2226 | defsubr (&Sprint); | |
2227 | defsubr (&Sterpri); | |
2228 | defsubr (&Swrite_char); | |
2229 | defsubr (&Sexternal_debugging_output); | |
6b61353c KH |
2230 | #ifdef WITH_REDIRECT_DEBUGGING_OUTPUT |
2231 | defsubr (&Sredirect_debugging_output); | |
2232 | #endif | |
38010d50 | 2233 | |
cd3520a4 JB |
2234 | DEFSYM (Qexternal_debugging_output, "external-debugging-output"); |
2235 | DEFSYM (Qprint_escape_newlines, "print-escape-newlines"); | |
2236 | DEFSYM (Qprint_escape_multibyte, "print-escape-multibyte"); | |
2237 | DEFSYM (Qprint_escape_nonascii, "print-escape-nonascii"); | |
835d0be6 | 2238 | |
71ea13cb KH |
2239 | print_prune_charset_plist = Qnil; |
2240 | staticpro (&print_prune_charset_plist); | |
38010d50 | 2241 | } |