|
0
|
1 /* Lisp object printing and output streams.
|
|
|
2 Copyright (C) 1985, 1986, 1988, 1992-1995 Free Software Foundation, Inc.
|
|
412
|
3 Copyright (C) 1995, 1996 Ben Wing.
|
|
0
|
4
|
|
|
5 This file is part of XEmacs.
|
|
|
6
|
|
|
7 XEmacs is free software; you can redistribute it and/or modify it
|
|
|
8 under the terms of the GNU General Public License as published by the
|
|
|
9 Free Software Foundation; either version 2, or (at your option) any
|
|
|
10 later version.
|
|
|
11
|
|
|
12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
|
|
|
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
15 for more details.
|
|
|
16
|
|
|
17 You should have received a copy of the GNU General Public License
|
|
|
18 along with XEmacs; see the file COPYING. If not, write to
|
|
|
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
|
20 Boston, MA 02111-1307, USA. */
|
|
|
21
|
|
|
22 /* Synched up with: Not synched with FSF. */
|
|
|
23
|
|
|
24 /* This file has been Mule-ized. */
|
|
|
25
|
|
|
26 /* Seriously hacked on by Ben Wing for Mule. */
|
|
|
27
|
|
|
28 #include <config.h>
|
|
|
29 #include "lisp.h"
|
|
|
30
|
|
|
31 #include "backtrace.h"
|
|
|
32 #include "buffer.h"
|
|
|
33 #include "bytecode.h"
|
|
|
34 #include "console-tty.h"
|
|
|
35 #include "console-stream.h"
|
|
|
36 #include "extents.h"
|
|
|
37 #include "frame.h"
|
|
|
38 #include "insdel.h"
|
|
|
39 #include "lstream.h"
|
|
272
|
40 #include "sysfile.h"
|
|
0
|
41
|
|
412
|
42 #include <limits.h>
|
|
272
|
43 #include <float.h>
|
|
|
44 /* Define if not in float.h */
|
|
|
45 #ifndef DBL_DIG
|
|
|
46 #define DBL_DIG 16
|
|
|
47 #endif
|
|
|
48
|
|
0
|
49 Lisp_Object Vstandard_output, Qstandard_output;
|
|
|
50
|
|
|
51 /* The subroutine object for external-debugging-output is kept here
|
|
|
52 for the convenience of the debugger. */
|
|
|
53 Lisp_Object Qexternal_debugging_output;
|
|
412
|
54 Lisp_Object Qalternate_debugging_output;
|
|
173
|
55
|
|
0
|
56 /* Avoid actual stack overflow in print. */
|
|
|
57 static int print_depth;
|
|
|
58
|
|
177
|
59 /* Detect most circularities to print finite output. */
|
|
|
60 #define PRINT_CIRCLE 200
|
|
412
|
61 Lisp_Object being_printed[PRINT_CIRCLE];
|
|
177
|
62
|
|
0
|
63 /* Maximum length of list or vector to print in full; noninteger means
|
|
|
64 effectively infinity */
|
|
|
65
|
|
|
66 Lisp_Object Vprint_length;
|
|
|
67 Lisp_Object Qprint_length;
|
|
|
68
|
|
|
69 /* Maximum length of string to print in full; noninteger means
|
|
|
70 effectively infinity */
|
|
|
71
|
|
|
72 Lisp_Object Vprint_string_length;
|
|
|
73 Lisp_Object Qprint_string_length;
|
|
|
74
|
|
|
75 /* Maximum depth of list to print in full; noninteger means
|
|
|
76 effectively infinity. */
|
|
|
77
|
|
|
78 Lisp_Object Vprint_level;
|
|
|
79
|
|
|
80 /* Label to use when making echo-area messages. */
|
|
|
81
|
|
|
82 Lisp_Object Vprint_message_label;
|
|
|
83
|
|
|
84 /* Nonzero means print newlines in strings as \n. */
|
|
|
85
|
|
|
86 int print_escape_newlines;
|
|
|
87 int print_readably;
|
|
245
|
88
|
|
|
89 /* Non-nil means print #: before uninterned symbols.
|
|
|
90 Neither t nor nil means so that and don't clear Vprint_gensym_alist
|
|
|
91 on entry to and exit from print functions. */
|
|
|
92 Lisp_Object Vprint_gensym;
|
|
|
93 Lisp_Object Vprint_gensym_alist;
|
|
0
|
94
|
|
412
|
95 Lisp_Object Qprint_escape_newlines;
|
|
|
96 Lisp_Object Qprint_readably;
|
|
|
97
|
|
171
|
98 Lisp_Object Qdisplay_error;
|
|
|
99 Lisp_Object Qprint_message_label;
|
|
|
100
|
|
0
|
101 /* Force immediate output of all printed data. Used for debugging. */
|
|
|
102 int print_unbuffered;
|
|
|
103
|
|
|
104 FILE *termscript; /* Stdio stream being used for copy of all output. */
|
|
|
105
|
|
|
106
|
|
|
107
|
|
|
108 int stdout_needs_newline;
|
|
|
109
|
|
412
|
110 /* Write a string (in internal format) to stdio stream STREAM. */
|
|
408
|
111
|
|
412
|
112 void
|
|
|
113 write_string_to_stdio_stream (FILE *stream, struct console *con,
|
|
|
114 CONST Bufbyte *str,
|
|
|
115 Bytecount offset, Bytecount len,
|
|
|
116 enum external_data_format fmt)
|
|
0
|
117 {
|
|
412
|
118 int extlen;
|
|
|
119 CONST Extbyte *extptr;
|
|
|
120
|
|
|
121 GET_CHARPTR_EXT_DATA_ALLOCA (str + offset, len, fmt, extptr, extlen);
|
|
0
|
122 if (stream)
|
|
282
|
123 {
|
|
412
|
124 fwrite (extptr, 1, extlen, stream);
|
|
|
125 #ifdef WINDOWSNT
|
|
|
126 /* Q122442 says that pipes are "treated as files, not as
|
|
|
127 devices", and that this is a feature. Before I found that
|
|
|
128 article, I thought it was a bug. Thanks MS, I feel much
|
|
|
129 better now. - kkm */
|
|
|
130 if (stream == stdout || stream == stderr)
|
|
|
131 fflush (stream);
|
|
404
|
132 #endif
|
|
282
|
133 }
|
|
0
|
134 else
|
|
412
|
135 {
|
|
|
136 assert (CONSOLE_TTY_P (con));
|
|
|
137 Lstream_write (XLSTREAM (CONSOLE_TTY_DATA (con)->outstream),
|
|
|
138 extptr, extlen);
|
|
|
139 }
|
|
|
140 if (stream == stdout || stream == stderr ||
|
|
|
141 (!stream && CONSOLE_TTY_DATA (con)->is_stdio))
|
|
0
|
142 {
|
|
|
143 if (termscript)
|
|
|
144 {
|
|
|
145 fwrite (extptr, 1, extlen, termscript);
|
|
|
146 fflush (termscript);
|
|
|
147 }
|
|
|
148 stdout_needs_newline = (extptr[extlen - 1] != '\n');
|
|
|
149 }
|
|
|
150 }
|
|
|
151
|
|
|
152 /* Write a string to the output location specified in FUNCTION.
|
|
|
153 Arguments NONRELOC, RELOC, OFFSET, and LEN are as in
|
|
|
154 buffer_insert_string_1() in insdel.c. */
|
|
|
155
|
|
|
156 static void
|
|
412
|
157 output_string (Lisp_Object function, CONST Bufbyte *nonreloc,
|
|
0
|
158 Lisp_Object reloc, Bytecount offset, Bytecount len)
|
|
|
159 {
|
|
|
160 /* This function can GC */
|
|
278
|
161 Charcount cclen;
|
|
0
|
162 /* We change the value of nonreloc (fetching it from reloc as
|
|
|
163 necessary), but we don't want to pass this changed value on to
|
|
|
164 other functions that take both a nonreloc and a reloc, or things
|
|
|
165 may get confused and an assertion failure in
|
|
|
166 fixup_internal_substring() may get triggered. */
|
|
412
|
167 CONST Bufbyte *newnonreloc = nonreloc;
|
|
0
|
168 struct gcpro gcpro1, gcpro2;
|
|
|
169
|
|
380
|
170 /* Emacs won't print while GCing, but an external debugger might */
|
|
0
|
171 if (gc_in_progress) return;
|
|
|
172
|
|
|
173 /* Perhaps not necessary but probably safer. */
|
|
|
174 GCPRO2 (function, reloc);
|
|
|
175
|
|
|
176 fixup_internal_substring (newnonreloc, reloc, offset, &len);
|
|
|
177
|
|
|
178 if (STRINGP (reloc))
|
|
16
|
179 newnonreloc = XSTRING_DATA (reloc);
|
|
0
|
180
|
|
|
181 cclen = bytecount_to_charcount (newnonreloc + offset, len);
|
|
|
182
|
|
|
183 if (LSTREAMP (function))
|
|
|
184 {
|
|
|
185 if (STRINGP (reloc))
|
|
|
186 {
|
|
276
|
187 /* Protect against Lstream_write() causing a GC and
|
|
|
188 relocating the string. For small strings, we do it by
|
|
|
189 alloc'ing the string and using a copy; for large strings,
|
|
278
|
190 we inhibit GC. */
|
|
276
|
191 if (len < 65536)
|
|
|
192 {
|
|
|
193 Bufbyte *copied = alloca_array (Bufbyte, len);
|
|
|
194 memcpy (copied, newnonreloc + offset, len);
|
|
|
195 Lstream_write (XLSTREAM (function), copied, len);
|
|
|
196 }
|
|
|
197 else
|
|
|
198 {
|
|
|
199 int speccount = specpdl_depth ();
|
|
|
200 record_unwind_protect (restore_gc_inhibit,
|
|
|
201 make_int (gc_currently_forbidden));
|
|
|
202 gc_currently_forbidden = 1;
|
|
|
203 Lstream_write (XLSTREAM (function), newnonreloc + offset, len);
|
|
|
204 unbind_to (speccount, Qnil);
|
|
|
205 }
|
|
0
|
206 }
|
|
|
207 else
|
|
|
208 Lstream_write (XLSTREAM (function), newnonreloc + offset, len);
|
|
|
209
|
|
|
210 if (print_unbuffered)
|
|
|
211 Lstream_flush (XLSTREAM (function));
|
|
|
212 }
|
|
|
213 else if (BUFFERP (function))
|
|
|
214 {
|
|
|
215 CHECK_LIVE_BUFFER (function);
|
|
|
216 buffer_insert_string (XBUFFER (function), nonreloc, reloc, offset, len);
|
|
|
217 }
|
|
|
218 else if (MARKERP (function))
|
|
|
219 {
|
|
278
|
220 /* marker_position() will err if marker doesn't point anywhere. */
|
|
0
|
221 Bufpos spoint = marker_position (function);
|
|
|
222
|
|
278
|
223 buffer_insert_string_1 (XMARKER (function)->buffer,
|
|
0
|
224 spoint, nonreloc, reloc, offset, len,
|
|
|
225 0);
|
|
|
226 Fset_marker (function, make_int (spoint + cclen),
|
|
|
227 Fmarker_buffer (function));
|
|
|
228 }
|
|
|
229 else if (FRAMEP (function))
|
|
|
230 {
|
|
278
|
231 /* This gets used by functions not invoking print_prepare(),
|
|
280
|
232 such as Fwrite_char, Fterpri, etc.. */
|
|
0
|
233 struct frame *f = XFRAME (function);
|
|
278
|
234 CHECK_LIVE_FRAME (function);
|
|
|
235
|
|
0
|
236 if (!EQ (Vprint_message_label, echo_area_status (f)))
|
|
|
237 clear_echo_area_from_print (f, Qnil, 1);
|
|
|
238 echo_area_append (f, nonreloc, reloc, offset, len, Vprint_message_label);
|
|
|
239 }
|
|
|
240 else if (EQ (function, Qt) || EQ (function, Qnil))
|
|
|
241 {
|
|
|
242 write_string_to_stdio_stream (stdout, 0, newnonreloc, offset, len,
|
|
412
|
243 FORMAT_TERMINAL);
|
|
0
|
244 }
|
|
|
245 else
|
|
|
246 {
|
|
278
|
247 Charcount ccoff = bytecount_to_charcount (newnonreloc, offset);
|
|
0
|
248 Charcount iii;
|
|
|
249
|
|
|
250 for (iii = ccoff; iii < cclen + ccoff; iii++)
|
|
|
251 {
|
|
|
252 call1 (function,
|
|
|
253 make_char (charptr_emchar_n (newnonreloc, iii)));
|
|
|
254 if (STRINGP (reloc))
|
|
16
|
255 newnonreloc = XSTRING_DATA (reloc);
|
|
0
|
256 }
|
|
|
257 }
|
|
|
258
|
|
|
259 UNGCPRO;
|
|
|
260 }
|
|
278
|
261
|
|
|
262 #define RESET_PRINT_GENSYM do { \
|
|
|
263 if (!CONSP (Vprint_gensym)) \
|
|
|
264 Vprint_gensym_alist = Qnil; \
|
|
|
265 } while (0)
|
|
0
|
266
|
|
|
267 static Lisp_Object
|
|
|
268 canonicalize_printcharfun (Lisp_Object printcharfun)
|
|
|
269 {
|
|
|
270 if (NILP (printcharfun))
|
|
|
271 printcharfun = Vstandard_output;
|
|
|
272
|
|
|
273 if (EQ (printcharfun, Qt) || NILP (printcharfun))
|
|
278
|
274 printcharfun = Fselected_frame (Qnil); /* print to minibuffer */
|
|
|
275
|
|
173
|
276 return printcharfun;
|
|
0
|
277 }
|
|
|
278
|
|
|
279 static Lisp_Object
|
|
278
|
280 print_prepare (Lisp_Object printcharfun, Lisp_Object *frame_kludge)
|
|
0
|
281 {
|
|
380
|
282 /* Emacs won't print while GCing, but an external debugger might */
|
|
0
|
283 if (gc_in_progress)
|
|
173
|
284 return Qnil;
|
|
0
|
285
|
|
278
|
286 RESET_PRINT_GENSYM;
|
|
|
287
|
|
0
|
288 printcharfun = canonicalize_printcharfun (printcharfun);
|
|
278
|
289
|
|
|
290 /* Here we could safely return the canonicalized PRINTCHARFUN.
|
|
|
291 However, if PRINTCHARFUN is a frame, printing of complex
|
|
|
292 structures becomes very expensive, because `append-message'
|
|
|
293 (called by echo_area_append) gets called as many times as
|
|
|
294 output_string() is called (and that's a *lot*). append-message
|
|
|
295 tries to keep top of the message-stack in sync with the contents
|
|
|
296 of " *Echo Area" buffer, consing a new string for each component
|
|
|
297 of the printed structure. For instance, if you print (a a),
|
|
|
298 append-message will cons up the following strings:
|
|
|
299
|
|
|
300 "("
|
|
|
301 "(a"
|
|
|
302 "(a "
|
|
|
303 "(a a"
|
|
|
304 "(a a)"
|
|
|
305
|
|
|
306 and will use only the last one. With larger objects, this turns
|
|
|
307 into an O(n^2) consing frenzy that locks up XEmacs in incessant
|
|
|
308 garbage collection.
|
|
|
309
|
|
|
310 We prevent this by creating a resizing_buffer stream and letting
|
|
|
311 the printer write into it. print_finish() will notice this
|
|
|
312 stream, and invoke echo_area_append() with the stream's buffer,
|
|
|
313 only once. */
|
|
|
314 if (FRAMEP (printcharfun))
|
|
|
315 {
|
|
|
316 CHECK_LIVE_FRAME (printcharfun);
|
|
|
317 *frame_kludge = printcharfun;
|
|
|
318 printcharfun = make_resizing_buffer_output_stream ();
|
|
|
319 }
|
|
173
|
320
|
|
276
|
321 return printcharfun;
|
|
0
|
322 }
|
|
|
323
|
|
|
324 static void
|
|
278
|
325 print_finish (Lisp_Object stream, Lisp_Object frame_kludge)
|
|
0
|
326 {
|
|
380
|
327 /* Emacs won't print while GCing, but an external debugger might */
|
|
0
|
328 if (gc_in_progress)
|
|
|
329 return;
|
|
|
330
|
|
278
|
331 RESET_PRINT_GENSYM;
|
|
|
332
|
|
|
333 /* See the comment in print_prepare(). */
|
|
|
334 if (FRAMEP (frame_kludge))
|
|
|
335 {
|
|
|
336 struct frame *f = XFRAME (frame_kludge);
|
|
|
337 Lstream *str = XLSTREAM (stream);
|
|
|
338 CHECK_LIVE_FRAME (frame_kludge);
|
|
|
339
|
|
|
340 Lstream_flush (str);
|
|
|
341 if (!EQ (Vprint_message_label, echo_area_status (f)))
|
|
|
342 clear_echo_area_from_print (f, Qnil, 1);
|
|
|
343 echo_area_append (f, resizing_buffer_stream_ptr (str),
|
|
|
344 Qnil, 0, Lstream_byte_count (str),
|
|
380
|
345 Vprint_message_label);
|
|
278
|
346 Lstream_delete (str);
|
|
|
347 }
|
|
0
|
348 }
|
|
280
|
349
|
|
|
350 /* Used for printing a single-byte character (*not* any Emchar). */
|
|
278
|
351 #define write_char_internal(string_of_length_1, stream) \
|
|
412
|
352 output_string (stream, (CONST Bufbyte *) (string_of_length_1), \
|
|
278
|
353 Qnil, 0, 1)
|
|
0
|
354
|
|
280
|
355 /* NOTE: Do not call this with the data of a Lisp_String, as
|
|
|
356 printcharfun might cause a GC, which might cause the string's data
|
|
|
357 to be relocated. To princ a Lisp string, use:
|
|
|
358
|
|
|
359 print_internal (string, printcharfun, 0);
|
|
|
360
|
|
|
361 Also note that STREAM should be the result of
|
|
|
362 canonicalize_printcharfun() (i.e. Qnil means stdout, not
|
|
|
363 Vstandard_output, etc.) */
|
|
0
|
364 void
|
|
412
|
365 write_string_1 (CONST Bufbyte *str, Bytecount size, Lisp_Object stream)
|
|
0
|
366 {
|
|
|
367 /* This function can GC */
|
|
278
|
368 #ifdef ERROR_CHECK_BUFPOS
|
|
0
|
369 assert (size >= 0);
|
|
278
|
370 #endif
|
|
0
|
371 output_string (stream, str, Qnil, 0, size);
|
|
|
372 }
|
|
|
373
|
|
|
374 void
|
|
412
|
375 write_c_string (CONST char *str, Lisp_Object stream)
|
|
0
|
376 {
|
|
|
377 /* This function can GC */
|
|
412
|
378 write_string_1 ((CONST Bufbyte *) str, strlen (str), stream);
|
|
0
|
379 }
|
|
|
380
|
|
|
381
|
|
20
|
382 DEFUN ("write-char", Fwrite_char, 1, 2, 0, /*
|
|
0
|
383 Output character CH to stream STREAM.
|
|
|
384 STREAM defaults to the value of `standard-output' (which see).
|
|
20
|
385 */
|
|
|
386 (ch, stream))
|
|
0
|
387 {
|
|
|
388 /* This function can GC */
|
|
|
389 Bufbyte str[MAX_EMCHAR_LEN];
|
|
|
390 Bytecount len;
|
|
|
391
|
|
|
392 CHECK_CHAR_COERCE_INT (ch);
|
|
|
393 len = set_charptr_emchar (str, XCHAR (ch));
|
|
|
394 output_string (canonicalize_printcharfun (stream), str, Qnil, 0, len);
|
|
|
395 return ch;
|
|
|
396 }
|
|
|
397
|
|
|
398 void
|
|
380
|
399 temp_output_buffer_setup (Lisp_Object bufname)
|
|
0
|
400 {
|
|
|
401 /* This function can GC */
|
|
|
402 struct buffer *old = current_buffer;
|
|
|
403 Lisp_Object buf;
|
|
|
404
|
|
|
405 #ifdef I18N3
|
|
|
406 /* #### This function should accept a Lisp_Object instead of a char *,
|
|
|
407 so that proper translation on the buffer name can occur. */
|
|
|
408 #endif
|
|
|
409
|
|
380
|
410 Fset_buffer (Fget_buffer_create (bufname));
|
|
0
|
411
|
|
|
412 current_buffer->read_only = Qnil;
|
|
223
|
413 Ferase_buffer (Qnil);
|
|
0
|
414
|
|
|
415 XSETBUFFER (buf, current_buffer);
|
|
|
416 specbind (Qstandard_output, buf);
|
|
|
417
|
|
|
418 set_buffer_internal (old);
|
|
|
419 }
|
|
|
420
|
|
|
421 Lisp_Object
|
|
380
|
422 internal_with_output_to_temp_buffer (Lisp_Object bufname,
|
|
0
|
423 Lisp_Object (*function) (Lisp_Object arg),
|
|
173
|
424 Lisp_Object arg,
|
|
0
|
425 Lisp_Object same_frame)
|
|
|
426 {
|
|
|
427 int speccount = specpdl_depth ();
|
|
|
428 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
429 Lisp_Object buf = Qnil;
|
|
|
430
|
|
|
431 GCPRO3 (buf, arg, same_frame);
|
|
|
432
|
|
380
|
433 temp_output_buffer_setup (bufname);
|
|
0
|
434 buf = Vstandard_output;
|
|
|
435
|
|
|
436 arg = (*function) (arg);
|
|
|
437
|
|
|
438 temp_output_buffer_show (buf, same_frame);
|
|
|
439 UNGCPRO;
|
|
|
440
|
|
|
441 return unbind_to (speccount, arg);
|
|
|
442 }
|
|
|
443
|
|
20
|
444 DEFUN ("with-output-to-temp-buffer", Fwith_output_to_temp_buffer, 1, UNEVALLED, 0, /*
|
|
0
|
445 Bind `standard-output' to buffer BUFNAME, eval BODY, then show that buffer.
|
|
|
446 The buffer is cleared out initially, and marked as unmodified when done.
|
|
|
447 All output done by BODY is inserted in that buffer by default.
|
|
|
448 The buffer is displayed in another window, but not selected.
|
|
|
449 The value of the last form in BODY is returned.
|
|
|
450 If BODY does not finish normally, the buffer BUFNAME is not displayed.
|
|
|
451
|
|
|
452 If variable `temp-buffer-show-function' is non-nil, call it at the end
|
|
|
453 to get the buffer displayed. It gets one argument, the buffer to display.
|
|
20
|
454 */
|
|
|
455 (args))
|
|
0
|
456 {
|
|
|
457 /* This function can GC */
|
|
380
|
458 Lisp_Object name = Qnil;
|
|
0
|
459 int speccount = specpdl_depth ();
|
|
380
|
460 struct gcpro gcpro1, gcpro2;
|
|
|
461 Lisp_Object val = Qnil;
|
|
0
|
462
|
|
|
463 #ifdef I18N3
|
|
|
464 /* #### should set the buffer to be translating. See print_internal(). */
|
|
|
465 #endif
|
|
|
466
|
|
380
|
467 GCPRO2 (name, val);
|
|
272
|
468 name = Feval (XCAR (args));
|
|
0
|
469
|
|
|
470 CHECK_STRING (name);
|
|
380
|
471
|
|
|
472 temp_output_buffer_setup (name);
|
|
|
473 UNGCPRO;
|
|
0
|
474
|
|
272
|
475 val = Fprogn (XCDR (args));
|
|
0
|
476
|
|
272
|
477 temp_output_buffer_show (Vstandard_output, Qnil);
|
|
0
|
478
|
|
|
479 return unbind_to (speccount, val);
|
|
|
480 }
|
|
|
481
|
|
20
|
482 DEFUN ("terpri", Fterpri, 0, 1, 0, /*
|
|
0
|
483 Output a newline to STREAM.
|
|
|
484 If STREAM is omitted or nil, the value of `standard-output' is used.
|
|
20
|
485 */
|
|
|
486 (stream))
|
|
0
|
487 {
|
|
|
488 /* This function can GC */
|
|
280
|
489 write_char_internal ("\n", canonicalize_printcharfun (stream));
|
|
0
|
490 return Qt;
|
|
|
491 }
|
|
|
492
|
|
20
|
493 DEFUN ("prin1", Fprin1, 1, 2, 0, /*
|
|
0
|
494 Output the printed representation of OBJECT, any Lisp object.
|
|
|
495 Quoting characters are printed when needed to make output that `read'
|
|
|
496 can handle, whenever this is possible.
|
|
|
497 Output stream is STREAM, or value of `standard-output' (which see).
|
|
20
|
498 */
|
|
|
499 (object, stream))
|
|
0
|
500 {
|
|
|
501 /* This function can GC */
|
|
280
|
502 Lisp_Object frame = Qnil;
|
|
|
503 struct gcpro gcpro1, gcpro2;
|
|
|
504 GCPRO2 (object, stream);
|
|
0
|
505
|
|
|
506 print_depth = 0;
|
|
280
|
507 stream = print_prepare (stream, &frame);
|
|
|
508 print_internal (object, stream, 1);
|
|
|
509 print_finish (stream, frame);
|
|
|
510
|
|
0
|
511 UNGCPRO;
|
|
|
512 return object;
|
|
|
513 }
|
|
|
514
|
|
20
|
515 DEFUN ("prin1-to-string", Fprin1_to_string, 1, 2, 0, /*
|
|
0
|
516 Return a string containing the printed representation of OBJECT,
|
|
|
517 any Lisp object. Quoting characters are used when needed to make output
|
|
|
518 that `read' can handle, whenever this is possible, unless the optional
|
|
|
519 second argument NOESCAPE is non-nil.
|
|
20
|
520 */
|
|
|
521 (object, noescape))
|
|
0
|
522 {
|
|
|
523 /* This function can GC */
|
|
280
|
524 Lisp_Object result = Qnil;
|
|
|
525 Lisp_Object stream = make_resizing_buffer_output_stream ();
|
|
|
526 Lstream *str = XLSTREAM (stream);
|
|
|
527 /* gcpro OBJECT in case a caller forgot to do so */
|
|
|
528 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
529 GCPRO3 (object, stream, result);
|
|
219
|
530
|
|
0
|
531 print_depth = 0;
|
|
278
|
532 RESET_PRINT_GENSYM;
|
|
|
533 print_internal (object, stream, NILP (noescape));
|
|
|
534 RESET_PRINT_GENSYM;
|
|
|
535 Lstream_flush (str);
|
|
0
|
536 UNGCPRO;
|
|
280
|
537 result = make_string (resizing_buffer_stream_ptr (str),
|
|
|
538 Lstream_byte_count (str));
|
|
|
539 Lstream_delete (str);
|
|
|
540 return result;
|
|
0
|
541 }
|
|
|
542
|
|
20
|
543 DEFUN ("princ", Fprinc, 1, 2, 0, /*
|
|
0
|
544 Output the printed representation of OBJECT, any Lisp object.
|
|
|
545 No quoting characters are used; no delimiters are printed around
|
|
|
546 the contents of strings.
|
|
|
547 Output stream is STREAM, or value of standard-output (which see).
|
|
20
|
548 */
|
|
280
|
549 (object, stream))
|
|
0
|
550 {
|
|
|
551 /* This function can GC */
|
|
280
|
552 Lisp_Object frame = Qnil;
|
|
|
553 struct gcpro gcpro1, gcpro2;
|
|
0
|
554
|
|
280
|
555 GCPRO2 (object, stream);
|
|
|
556 stream = print_prepare (stream, &frame);
|
|
0
|
557 print_depth = 0;
|
|
280
|
558 print_internal (object, stream, 0);
|
|
|
559 print_finish (stream, frame);
|
|
0
|
560 UNGCPRO;
|
|
280
|
561 return object;
|
|
0
|
562 }
|
|
|
563
|
|
20
|
564 DEFUN ("print", Fprint, 1, 2, 0, /*
|
|
0
|
565 Output the printed representation of OBJECT, with newlines around it.
|
|
|
566 Quoting characters are printed when needed to make output that `read'
|
|
|
567 can handle, whenever this is possible.
|
|
|
568 Output stream is STREAM, or value of `standard-output' (which see).
|
|
20
|
569 */
|
|
280
|
570 (object, stream))
|
|
0
|
571 {
|
|
|
572 /* This function can GC */
|
|
280
|
573 Lisp_Object frame = Qnil;
|
|
|
574 struct gcpro gcpro1, gcpro2;
|
|
0
|
575
|
|
280
|
576 GCPRO2 (object, stream);
|
|
|
577 stream = print_prepare (stream, &frame);
|
|
0
|
578 print_depth = 0;
|
|
280
|
579 write_char_internal ("\n", stream);
|
|
|
580 print_internal (object, stream, 1);
|
|
|
581 write_char_internal ("\n", stream);
|
|
|
582 print_finish (stream, frame);
|
|
0
|
583 UNGCPRO;
|
|
280
|
584 return object;
|
|
0
|
585 }
|
|
|
586
|
|
280
|
587 /* Print an error message for the error DATA to STREAM. This is a
|
|
|
588 complete implementation of `display-error', which used to be in
|
|
|
589 Lisp (see prim/cmdloop.el). It was ported to C so it can be used
|
|
|
590 efficiently by Ferror_message_string. Fdisplay_error and
|
|
|
591 Ferror_message_string are trivial wrappers around this function.
|
|
219
|
592
|
|
280
|
593 STREAM should be the result of canonicalize_printcharfun(). */
|
|
171
|
594 static void
|
|
|
595 print_error_message (Lisp_Object error_object, Lisp_Object stream)
|
|
100
|
596 {
|
|
171
|
597 /* This function can GC */
|
|
280
|
598 Lisp_Object type = Fcar_safe (error_object);
|
|
171
|
599 Lisp_Object method = Qnil;
|
|
280
|
600 Lisp_Object tail;
|
|
171
|
601
|
|
280
|
602 /* No need to GCPRO anything under the assumption that ERROR_OBJECT
|
|
|
603 is GCPRO'd. */
|
|
171
|
604
|
|
|
605 if (! (CONSP (error_object) && SYMBOLP (type)
|
|
|
606 && CONSP (Fget (type, Qerror_conditions, Qnil))))
|
|
|
607 goto error_throw;
|
|
100
|
608
|
|
171
|
609 tail = XCDR (error_object);
|
|
|
610 while (!NILP (tail))
|
|
|
611 {
|
|
|
612 if (CONSP (tail))
|
|
|
613 tail = XCDR (tail);
|
|
|
614 else
|
|
|
615 goto error_throw;
|
|
|
616 }
|
|
|
617 tail = Fget (type, Qerror_conditions, Qnil);
|
|
|
618 while (!NILP (tail))
|
|
100
|
619 {
|
|
171
|
620 if (!(CONSP (tail) && SYMBOLP (XCAR (tail))))
|
|
|
621 goto error_throw;
|
|
|
622 else if (!NILP (Fget (XCAR (tail), Qdisplay_error, Qnil)))
|
|
|
623 {
|
|
|
624 method = Fget (XCAR (tail), Qdisplay_error, Qnil);
|
|
|
625 goto error_throw;
|
|
|
626 }
|
|
|
627 else
|
|
|
628 tail = XCDR (tail);
|
|
|
629 }
|
|
|
630 /* Default method */
|
|
|
631 {
|
|
|
632 int first = 1;
|
|
|
633 int speccount = specpdl_depth ();
|
|
|
634
|
|
|
635 specbind (Qprint_message_label, Qerror);
|
|
|
636 tail = Fcdr (error_object);
|
|
|
637 if (EQ (type, Qerror))
|
|
|
638 {
|
|
280
|
639 print_internal (Fcar (tail), stream, 0);
|
|
171
|
640 tail = Fcdr (tail);
|
|
|
641 }
|
|
|
642 else
|
|
|
643 {
|
|
|
644 Lisp_Object errmsg = Fget (type, Qerror_message, Qnil);
|
|
|
645 if (NILP (errmsg))
|
|
280
|
646 print_internal (type, stream, 0);
|
|
171
|
647 else
|
|
280
|
648 print_internal (LISP_GETTEXT (errmsg), stream, 0);
|
|
171
|
649 }
|
|
|
650 while (!NILP (tail))
|
|
|
651 {
|
|
280
|
652 write_c_string (first ? ": " : ", ", stream);
|
|
|
653 print_internal (Fcar (tail), stream, 1);
|
|
171
|
654 tail = Fcdr (tail);
|
|
|
655 first = 0;
|
|
|
656 }
|
|
|
657 unbind_to (speccount, Qnil);
|
|
|
658 return;
|
|
280
|
659 /* not reached */
|
|
171
|
660 }
|
|
|
661
|
|
|
662 error_throw:
|
|
|
663 if (NILP (method))
|
|
|
664 {
|
|
280
|
665 write_c_string (GETTEXT ("Peculiar error "), stream);
|
|
|
666 print_internal (error_object, stream, 1);
|
|
171
|
667 return;
|
|
100
|
668 }
|
|
|
669 else
|
|
|
670 {
|
|
171
|
671 call2 (method, error_object, stream);
|
|
100
|
672 }
|
|
171
|
673 }
|
|
100
|
674
|
|
280
|
675 DEFUN ("error-message-string", Ferror_message_string, 1, 1, 0, /*
|
|
|
676 Convert ERROR-OBJECT to an error message, and return it.
|
|
|
677
|
|
|
678 The format of ERROR-OBJECT should be (ERROR-SYMBOL . DATA). The
|
|
|
679 message is equivalent to the one that would be issued by
|
|
|
680 `display-error' with the same argument.
|
|
|
681 */
|
|
|
682 (error_object))
|
|
|
683 {
|
|
|
684 /* This function can GC */
|
|
|
685 Lisp_Object result = Qnil;
|
|
|
686 Lisp_Object stream = make_resizing_buffer_output_stream ();
|
|
|
687 struct gcpro gcpro1;
|
|
|
688 GCPRO1 (stream);
|
|
|
689
|
|
|
690 print_error_message (error_object, stream);
|
|
|
691 Lstream_flush (XLSTREAM (stream));
|
|
|
692 result = make_string (resizing_buffer_stream_ptr (XLSTREAM (stream)),
|
|
|
693 Lstream_byte_count (XLSTREAM (stream)));
|
|
|
694 Lstream_delete (XLSTREAM (stream));
|
|
|
695
|
|
|
696 UNGCPRO;
|
|
|
697 return result;
|
|
|
698 }
|
|
|
699
|
|
171
|
700 DEFUN ("display-error", Fdisplay_error, 2, 2, 0, /*
|
|
280
|
701 Display ERROR-OBJECT on STREAM in a user-friendly way.
|
|
171
|
702 */
|
|
|
703 (error_object, stream))
|
|
|
704 {
|
|
|
705 /* This function can GC */
|
|
280
|
706 print_error_message (error_object, canonicalize_printcharfun (stream));
|
|
171
|
707 return Qnil;
|
|
|
708 }
|
|
100
|
709
|
|
|
710
|
|
0
|
711 #ifdef LISP_FLOAT_TYPE
|
|
|
712
|
|
|
713 Lisp_Object Vfloat_output_format;
|
|
412
|
714 Lisp_Object Qfloat_output_format;
|
|
0
|
715
|
|
|
716 /*
|
|
|
717 * This buffer should be at least as large as the max string size of the
|
|
412
|
718 * largest float, printed in the biggest notation. This is undoubtably
|
|
0
|
719 * 20d float_output_format, with the negative of the C-constant "HUGE"
|
|
|
720 * from <math.h>.
|
|
173
|
721 *
|
|
0
|
722 * On the vax the worst case is -1e38 in 20d format which takes 61 bytes.
|
|
173
|
723 *
|
|
0
|
724 * I assume that IEEE-754 format numbers can take 329 bytes for the worst
|
|
|
725 * case of -1e307 in 20d float_output_format. What is one to do (short of
|
|
|
726 * re-writing _doprnt to be more sane)?
|
|
|
727 * -wsr
|
|
|
728 */
|
|
280
|
729 void
|
|
|
730 float_to_string (char *buf, double data)
|
|
0
|
731 {
|
|
|
732 Bufbyte *cp, c;
|
|
|
733 int width;
|
|
173
|
734
|
|
0
|
735 if (NILP (Vfloat_output_format)
|
|
|
736 || !STRINGP (Vfloat_output_format))
|
|
|
737 lose:
|
|
|
738 sprintf (buf, "%.16g", data);
|
|
|
739 else /* oink oink */
|
|
|
740 {
|
|
|
741 /* Check that the spec we have is fully valid.
|
|
|
742 This means not only valid for printf,
|
|
|
743 but meant for floats, and reasonable. */
|
|
16
|
744 cp = XSTRING_DATA (Vfloat_output_format);
|
|
0
|
745
|
|
|
746 if (cp[0] != '%')
|
|
|
747 goto lose;
|
|
|
748 if (cp[1] != '.')
|
|
|
749 goto lose;
|
|
|
750
|
|
|
751 cp += 2;
|
|
|
752 for (width = 0; (c = *cp, isdigit (c)); cp++)
|
|
|
753 {
|
|
|
754 width *= 10;
|
|
|
755 width += c - '0';
|
|
|
756 }
|
|
|
757
|
|
173
|
758 if (*cp != 'e' && *cp != 'f' && *cp != 'g' && *cp != 'E' && *cp != 'G')
|
|
0
|
759 goto lose;
|
|
|
760
|
|
|
761 if (width < (int) (*cp != 'e' && *cp != 'E') || width > DBL_DIG)
|
|
|
762 goto lose;
|
|
|
763
|
|
|
764 if (cp[1] != 0)
|
|
|
765 goto lose;
|
|
|
766
|
|
16
|
767 sprintf (buf, (char *) XSTRING_DATA (Vfloat_output_format),
|
|
0
|
768 data);
|
|
|
769 }
|
|
|
770
|
|
|
771 /* added by jwz: don't allow "1.0" to print as "1"; that destroys
|
|
|
772 the read-equivalence of lisp objects. (* x 1) and (* x 1.0) do
|
|
|
773 not do the same thing, so it's important that the printed
|
|
|
774 representation of that form not be corrupted by the printer.
|
|
|
775 */
|
|
|
776 {
|
|
|
777 Bufbyte *s = (Bufbyte *) buf; /* don't use signed chars here!
|
|
|
778 isdigit() can't hack them! */
|
|
|
779 if (*s == '-') s++;
|
|
|
780 for (; *s; s++)
|
|
|
781 /* if there's a non-digit, then there is a decimal point, or
|
|
|
782 it's in exponential notation, both of which are ok. */
|
|
|
783 if (!isdigit (*s))
|
|
|
784 goto DONE_LABEL;
|
|
|
785 /* otherwise, we need to hack it. */
|
|
|
786 *s++ = '.';
|
|
|
787 *s++ = '0';
|
|
|
788 *s = 0;
|
|
|
789 }
|
|
|
790 DONE_LABEL:
|
|
|
791
|
|
|
792 /* Some machines print "0.4" as ".4". I don't like that. */
|
|
|
793 if (buf [0] == '.' || (buf [0] == '-' && buf [1] == '.'))
|
|
|
794 {
|
|
|
795 int i;
|
|
|
796 for (i = strlen (buf) + 1; i >= 0; i--)
|
|
|
797 buf [i+1] = buf [i];
|
|
|
798 buf [(buf [0] == '-' ? 1 : 0)] = '0';
|
|
|
799 }
|
|
|
800 }
|
|
|
801 #endif /* LISP_FLOAT_TYPE */
|
|
278
|
802
|
|
412
|
803 /* Print NUMBER to BUFFER. The digits are first written in reverse
|
|
|
804 order (the least significant digit first), and are then reversed.
|
|
|
805 This is equivalent to sprintf(buffer, "%ld", number), only much
|
|
|
806 faster.
|
|
280
|
807
|
|
|
808 BUFFER should accept 24 bytes. This should suffice for the longest
|
|
412
|
809 numbers on 64-bit machines. */
|
|
278
|
810 void
|
|
|
811 long_to_string (char *buffer, long number)
|
|
|
812 {
|
|
412
|
813 char *p;
|
|
|
814 int i, len;
|
|
278
|
815
|
|
|
816 if (number < 0)
|
|
|
817 {
|
|
412
|
818 *buffer++ = '-';
|
|
278
|
819 number = -number;
|
|
|
820 }
|
|
412
|
821 p = buffer;
|
|
280
|
822
|
|
412
|
823 /* Print the digits to the string. */
|
|
|
824 do
|
|
|
825 {
|
|
|
826 *p++ = number % 10 + '0';
|
|
|
827 number /= 10;
|
|
|
828 }
|
|
|
829 while (number);
|
|
|
830
|
|
|
831 /* And reverse them. */
|
|
|
832 len = p - buffer - 1;
|
|
|
833 for (i = len / 2; i >= 0; i--)
|
|
|
834 {
|
|
|
835 char c = buffer[i];
|
|
|
836 buffer[i] = buffer[len - i];
|
|
|
837 buffer[len - i] = c;
|
|
|
838 }
|
|
|
839 buffer[len + 1] = '\0';
|
|
278
|
840 }
|
|
0
|
841
|
|
|
842 static void
|
|
412
|
843 print_vector_internal (CONST char *start, CONST char *end,
|
|
173
|
844 Lisp_Object obj,
|
|
0
|
845 Lisp_Object printcharfun, int escapeflag)
|
|
|
846 {
|
|
|
847 /* This function can GC */
|
|
|
848 int i;
|
|
173
|
849 int len = XVECTOR_LENGTH (obj);
|
|
0
|
850 int last = len;
|
|
|
851 struct gcpro gcpro1, gcpro2;
|
|
|
852 GCPRO2 (obj, printcharfun);
|
|
|
853
|
|
|
854 if (INTP (Vprint_length))
|
|
|
855 {
|
|
|
856 int max = XINT (Vprint_length);
|
|
|
857 if (max < len) last = max;
|
|
|
858 }
|
|
|
859
|
|
|
860 write_c_string (start, printcharfun);
|
|
|
861 for (i = 0; i < last; i++)
|
|
|
862 {
|
|
173
|
863 Lisp_Object elt = XVECTOR_DATA (obj)[i];
|
|
0
|
864 if (i != 0) write_char_internal (" ", printcharfun);
|
|
|
865 print_internal (elt, printcharfun, escapeflag);
|
|
|
866 }
|
|
|
867 UNGCPRO;
|
|
|
868 if (last != len)
|
|
|
869 write_c_string (" ...", printcharfun);
|
|
|
870 write_c_string (end, printcharfun);
|
|
|
871 }
|
|
|
872
|
|
207
|
873 void
|
|
|
874 print_cons (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
875 {
|
|
|
876 /* This function can GC */
|
|
|
877 struct gcpro gcpro1, gcpro2;
|
|
|
878
|
|
|
879 /* If print_readably is on, print (quote -foo-) as '-foo-
|
|
|
880 (Yeah, this should really be what print-pretty does, but we
|
|
|
881 don't have the rest of a pretty printer, and this actually
|
|
|
882 has non-negligible impact on size/speed of .elc files.)
|
|
|
883 */
|
|
|
884 if (print_readably &&
|
|
|
885 EQ (XCAR (obj), Qquote) &&
|
|
|
886 CONSP (XCDR (obj)) &&
|
|
|
887 NILP (XCDR (XCDR (obj))))
|
|
|
888 {
|
|
|
889 obj = XCAR (XCDR (obj));
|
|
|
890 GCPRO2 (obj, printcharfun);
|
|
280
|
891 write_char_internal ("\'", printcharfun);
|
|
207
|
892 UNGCPRO;
|
|
|
893 print_internal (obj, printcharfun, escapeflag);
|
|
|
894 return;
|
|
|
895 }
|
|
|
896
|
|
|
897 GCPRO2 (obj, printcharfun);
|
|
|
898 write_char_internal ("(", printcharfun);
|
|
280
|
899
|
|
207
|
900 {
|
|
380
|
901 int len;
|
|
|
902 int max = INTP (Vprint_length) ? XINT (Vprint_length) : INT_MAX;
|
|
|
903 Lisp_Object tortoise;
|
|
|
904 /* Use tortoise/hare to make sure circular lists don't infloop */
|
|
207
|
905
|
|
380
|
906 for (tortoise = obj, len = 0;
|
|
|
907 CONSP (obj);
|
|
|
908 obj = XCDR (obj), len++)
|
|
207
|
909 {
|
|
380
|
910 if (len > 0)
|
|
207
|
911 write_char_internal (" ", printcharfun);
|
|
380
|
912 if (EQ (obj, tortoise) && len > 0)
|
|
|
913 {
|
|
|
914 if (print_readably)
|
|
|
915 error ("printing unreadable circular list");
|
|
|
916 else
|
|
|
917 write_c_string ("... <circular list>", printcharfun);
|
|
|
918 break;
|
|
|
919 }
|
|
|
920 if (len & 1)
|
|
|
921 tortoise = XCDR (tortoise);
|
|
|
922 if (len > max)
|
|
207
|
923 {
|
|
|
924 write_c_string ("...", printcharfun);
|
|
|
925 break;
|
|
|
926 }
|
|
380
|
927 print_internal (XCAR (obj), printcharfun, escapeflag);
|
|
207
|
928 }
|
|
|
929 }
|
|
272
|
930 if (!LISTP (obj))
|
|
207
|
931 {
|
|
|
932 write_c_string (" . ", printcharfun);
|
|
|
933 print_internal (obj, printcharfun, escapeflag);
|
|
|
934 }
|
|
|
935 UNGCPRO;
|
|
380
|
936
|
|
207
|
937 write_char_internal (")", printcharfun);
|
|
|
938 return;
|
|
|
939 }
|
|
|
940
|
|
|
941 void
|
|
|
942 print_vector (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
943 {
|
|
|
944 print_vector_internal ("[", "]", obj, printcharfun, escapeflag);
|
|
|
945 }
|
|
|
946
|
|
|
947 void
|
|
|
948 print_string (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
949 {
|
|
412
|
950 struct Lisp_String *s = XSTRING (obj);
|
|
245
|
951 /* We distinguish between Bytecounts and Charcounts, to make
|
|
|
952 Vprint_string_length work correctly under Mule. */
|
|
|
953 Charcount size = string_char_length (s);
|
|
|
954 Charcount max = size;
|
|
|
955 Bytecount bcmax = string_length (s);
|
|
207
|
956 struct gcpro gcpro1, gcpro2;
|
|
|
957 GCPRO2 (obj, printcharfun);
|
|
|
958
|
|
|
959 if (INTP (Vprint_string_length) &&
|
|
|
960 XINT (Vprint_string_length) < max)
|
|
245
|
961 {
|
|
|
962 max = XINT (Vprint_string_length);
|
|
|
963 bcmax = charcount_to_bytecount (string_data (s), max);
|
|
|
964 }
|
|
207
|
965 if (max < 0)
|
|
245
|
966 {
|
|
|
967 max = 0;
|
|
|
968 bcmax = 0;
|
|
|
969 }
|
|
207
|
970
|
|
|
971 if (!escapeflag)
|
|
|
972 {
|
|
245
|
973 /* This deals with GC-relocation and Mule. */
|
|
|
974 output_string (printcharfun, 0, obj, 0, bcmax);
|
|
207
|
975 if (max < size)
|
|
|
976 write_c_string (" ...", printcharfun);
|
|
|
977 }
|
|
|
978 else
|
|
|
979 {
|
|
245
|
980 Bytecount i, last = 0;
|
|
207
|
981
|
|
|
982 write_char_internal ("\"", printcharfun);
|
|
245
|
983 for (i = 0; i < bcmax; i++)
|
|
207
|
984 {
|
|
|
985 Bufbyte ch = string_byte (s, i);
|
|
|
986 if (ch == '\"' || ch == '\\'
|
|
|
987 || (ch == '\n' && print_escape_newlines))
|
|
|
988 {
|
|
|
989 if (i > last)
|
|
|
990 {
|
|
|
991 output_string (printcharfun, 0, obj, last,
|
|
|
992 i - last);
|
|
|
993 }
|
|
|
994 if (ch == '\n')
|
|
|
995 {
|
|
|
996 write_c_string ("\\n", printcharfun);
|
|
|
997 }
|
|
|
998 else
|
|
|
999 {
|
|
|
1000 write_char_internal ("\\", printcharfun);
|
|
|
1001 /* This is correct for Mule because the
|
|
|
1002 character is either \ or " */
|
|
278
|
1003 write_char_internal (string_data (s) + i, printcharfun);
|
|
207
|
1004 }
|
|
|
1005 last = i + 1;
|
|
|
1006 }
|
|
|
1007 }
|
|
245
|
1008 if (bcmax > last)
|
|
207
|
1009 {
|
|
|
1010 output_string (printcharfun, 0, obj, last,
|
|
245
|
1011 bcmax - last);
|
|
207
|
1012 }
|
|
|
1013 if (max < size)
|
|
|
1014 write_c_string (" ...", printcharfun);
|
|
|
1015 write_char_internal ("\"", printcharfun);
|
|
|
1016 }
|
|
|
1017 UNGCPRO;
|
|
276
|
1018 }
|
|
207
|
1019
|
|
0
|
1020 static void
|
|
|
1021 default_object_printer (Lisp_Object obj, Lisp_Object printcharfun,
|
|
|
1022 int escapeflag)
|
|
|
1023 {
|
|
|
1024 struct lcrecord_header *header =
|
|
|
1025 (struct lcrecord_header *) XPNTR (obj);
|
|
|
1026 char buf[200];
|
|
|
1027
|
|
|
1028 if (print_readably)
|
|
|
1029 error ("printing unreadable object #<%s 0x%x>",
|
|
211
|
1030 LHEADER_IMPLEMENTATION (&header->lheader)->name,
|
|
|
1031 header->uid);
|
|
0
|
1032
|
|
211
|
1033 sprintf (buf, "#<%s 0x%x>",
|
|
|
1034 LHEADER_IMPLEMENTATION (&header->lheader)->name,
|
|
0
|
1035 header->uid);
|
|
|
1036 write_c_string (buf, printcharfun);
|
|
|
1037 }
|
|
|
1038
|
|
|
1039 void
|
|
|
1040 internal_object_printer (Lisp_Object obj, Lisp_Object printcharfun,
|
|
|
1041 int escapeflag)
|
|
|
1042 {
|
|
|
1043 char buf[200];
|
|
278
|
1044 sprintf (buf, "#<INTERNAL OBJECT (XEmacs bug?) (%s) 0x%lx>",
|
|
211
|
1045 XRECORD_LHEADER_IMPLEMENTATION (obj)->name,
|
|
278
|
1046 (unsigned long) XPNTR (obj));
|
|
0
|
1047 write_c_string (buf, printcharfun);
|
|
|
1048 }
|
|
|
1049
|
|
|
1050 void
|
|
|
1051 print_internal (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
1052 {
|
|
|
1053 /* This function can GC */
|
|
|
1054
|
|
|
1055 QUIT;
|
|
|
1056
|
|
380
|
1057 /* Emacs won't print while GCing, but an external debugger might */
|
|
0
|
1058 if (gc_in_progress) return;
|
|
|
1059
|
|
|
1060 #ifdef I18N3
|
|
|
1061 /* #### Both input and output streams should have a flag associated
|
|
|
1062 with them indicating whether output to that stream, or strings
|
|
|
1063 read from the stream, get translated using Fgettext(). Such a
|
|
|
1064 stream is called a "translating stream". For the minibuffer and
|
|
|
1065 external-debugging-output this is always true on output, and
|
|
|
1066 with-output-to-temp-buffer sets the flag to true for the buffer
|
|
|
1067 it creates. This flag should also be user-settable. Perhaps it
|
|
|
1068 should be split up into two flags, one for input and one for
|
|
|
1069 output. */
|
|
|
1070 #endif
|
|
|
1071
|
|
177
|
1072 /* Detect circularities and truncate them.
|
|
|
1073 No need to offer any alternative--this is better than an error. */
|
|
|
1074 if (CONSP (obj) || VECTORP (obj) || COMPILED_FUNCTIONP (obj))
|
|
|
1075 {
|
|
|
1076 int i;
|
|
|
1077 for (i = 0; i < print_depth; i++)
|
|
|
1078 if (EQ (obj, being_printed[i]))
|
|
|
1079 {
|
|
280
|
1080 char buf[32];
|
|
|
1081 *buf = '#';
|
|
|
1082 long_to_string (buf + 1, i);
|
|
177
|
1083 write_c_string (buf, printcharfun);
|
|
|
1084 return;
|
|
|
1085 }
|
|
|
1086 }
|
|
|
1087
|
|
|
1088 being_printed[print_depth] = obj;
|
|
0
|
1089 print_depth++;
|
|
|
1090
|
|
177
|
1091 if (print_depth > PRINT_CIRCLE)
|
|
0
|
1092 error ("Apparently circular structure being printed");
|
|
|
1093
|
|
|
1094 switch (XTYPE (obj))
|
|
|
1095 {
|
|
207
|
1096 case Lisp_Type_Int_Even:
|
|
|
1097 case Lisp_Type_Int_Odd:
|
|
0
|
1098 {
|
|
412
|
1099 char buf[24];
|
|
276
|
1100 long_to_string (buf, XINT (obj));
|
|
0
|
1101 write_c_string (buf, printcharfun);
|
|
|
1102 break;
|
|
|
1103 }
|
|
|
1104
|
|
185
|
1105 case Lisp_Type_Char:
|
|
70
|
1106 {
|
|
|
1107 /* God intended that this be #\..., you know. */
|
|
280
|
1108 char buf[16];
|
|
70
|
1109 Emchar ch = XCHAR (obj);
|
|
278
|
1110 char *p = buf;
|
|
|
1111 *p++ = '?';
|
|
412
|
1112 if (ch == '\n')
|
|
|
1113 *p++ = '\\', *p++ = 'n';
|
|
|
1114 else if (ch == '\r')
|
|
|
1115 *p++ = '\\', *p++ = 'r';
|
|
|
1116 else if (ch == '\t')
|
|
|
1117 *p++ = '\\', *p++ = 't';
|
|
|
1118 else if (ch < 32)
|
|
278
|
1119 {
|
|
412
|
1120 *p++ = '\\', *p++ = '^';
|
|
|
1121 *p++ = ch + 64;
|
|
|
1122 if ((ch + 64) == '\\')
|
|
|
1123 *p++ = '\\';
|
|
187
|
1124 }
|
|
278
|
1125 else if (ch == 127)
|
|
412
|
1126 *p++ = '\\', *p++ = '^', *p++ = '?';
|
|
|
1127 else if (ch >= 128 && ch < 160)
|
|
70
|
1128 {
|
|
278
|
1129 *p++ = '\\', *p++ = '^';
|
|
412
|
1130 p += set_charptr_emchar ((Bufbyte *)p, ch + 64);
|
|
70
|
1131 }
|
|
412
|
1132 else if (ch < 127
|
|
|
1133 && !isdigit (ch)
|
|
|
1134 && !isalpha (ch)
|
|
|
1135 && ch != '^') /* must not backslash this or it will
|
|
|
1136 be interpreted as the start of a
|
|
|
1137 control char */
|
|
|
1138 *p++ = '\\', *p++ = ch;
|
|
70
|
1139 else
|
|
412
|
1140 p += set_charptr_emchar ((Bufbyte *)p, ch);
|
|
|
1141 output_string (printcharfun, (Bufbyte *)buf, Qnil, 0, p - buf);
|
|
0
|
1142 break;
|
|
|
1143 }
|
|
|
1144
|
|
185
|
1145 case Lisp_Type_Record:
|
|
0
|
1146 {
|
|
|
1147 struct lrecord_header *lheader = XRECORD_LHEADER (obj);
|
|
|
1148 struct gcpro gcpro1, gcpro2;
|
|
|
1149
|
|
207
|
1150 if (CONSP (obj) || VECTORP(obj))
|
|
|
1151 {
|
|
|
1152 /* If deeper than spec'd depth, print placeholder. */
|
|
|
1153 if (INTP (Vprint_level)
|
|
|
1154 && print_depth > XINT (Vprint_level))
|
|
|
1155 {
|
|
|
1156 GCPRO2 (obj, printcharfun);
|
|
|
1157 write_c_string ("...", printcharfun);
|
|
|
1158 UNGCPRO;
|
|
|
1159 break;
|
|
|
1160 }
|
|
|
1161 }
|
|
|
1162
|
|
0
|
1163 GCPRO2 (obj, printcharfun);
|
|
211
|
1164 if (LHEADER_IMPLEMENTATION (lheader)->printer)
|
|
|
1165 ((LHEADER_IMPLEMENTATION (lheader)->printer)
|
|
0
|
1166 (obj, printcharfun, escapeflag));
|
|
|
1167 else
|
|
|
1168 default_object_printer (obj, printcharfun, escapeflag);
|
|
|
1169 UNGCPRO;
|
|
|
1170 break;
|
|
|
1171 }
|
|
|
1172
|
|
|
1173 default:
|
|
|
1174 {
|
|
284
|
1175 #ifdef ERROR_CHECK_TYPECHECK
|
|
|
1176 abort ();
|
|
|
1177 #else /* not ERROR_CHECK_TYPECHECK */
|
|
280
|
1178 char buf[128];
|
|
284
|
1179 /* We're in trouble if this happens! */
|
|
0
|
1180 if (print_readably)
|
|
|
1181 error ("printing illegal data type #o%03o",
|
|
|
1182 (int) XTYPE (obj));
|
|
|
1183 write_c_string ("#<EMACS BUG: ILLEGAL DATATYPE ",
|
|
|
1184 printcharfun);
|
|
|
1185 sprintf (buf, "(#o%3o)", (int) XTYPE (obj));
|
|
|
1186 write_c_string (buf, printcharfun);
|
|
|
1187 write_c_string
|
|
|
1188 (" Save your buffers immediately and please report this bug>",
|
|
|
1189 printcharfun);
|
|
284
|
1190 #endif /* not ERROR_CHECK_TYPECHECK */
|
|
0
|
1191 break;
|
|
|
1192 }
|
|
|
1193 }
|
|
|
1194
|
|
|
1195 print_depth--;
|
|
|
1196 }
|
|
|
1197
|
|
|
1198
|
|
|
1199 #ifdef LISP_FLOAT_TYPE
|
|
|
1200 void
|
|
|
1201 print_float (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
1202 {
|
|
|
1203 char pigbuf[350]; /* see comments in float_to_string */
|
|
|
1204
|
|
380
|
1205 float_to_string (pigbuf, XFLOAT_DATA (obj));
|
|
0
|
1206 write_c_string (pigbuf, printcharfun);
|
|
|
1207 }
|
|
|
1208 #endif /* LISP_FLOAT_TYPE */
|
|
|
1209
|
|
|
1210 void
|
|
|
1211 print_symbol (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
1212 {
|
|
|
1213 /* This function can GC */
|
|
|
1214 /* #### Bug!! (intern "") isn't printed in some distinguished way */
|
|
|
1215 /* #### (the reader also loses on it) */
|
|
412
|
1216 struct Lisp_String *name = symbol_name (XSYMBOL (obj));
|
|
0
|
1217 Bytecount size = string_length (name);
|
|
|
1218 struct gcpro gcpro1, gcpro2;
|
|
|
1219
|
|
|
1220 if (!escapeflag)
|
|
|
1221 {
|
|
|
1222 /* This deals with GC-relocation */
|
|
|
1223 Lisp_Object nameobj;
|
|
|
1224 XSETSTRING (nameobj, name);
|
|
|
1225 output_string (printcharfun, 0, nameobj, 0, size);
|
|
|
1226 return;
|
|
|
1227 }
|
|
|
1228 GCPRO2 (obj, printcharfun);
|
|
|
1229
|
|
245
|
1230 /* If we print an uninterned symbol as part of a complex object and
|
|
|
1231 the flag print-gensym is non-nil, prefix it with #n= to read the
|
|
|
1232 object back with the #n# reader syntax later if needed. */
|
|
398
|
1233 if (!NILP (Vprint_gensym)
|
|
|
1234 /* #### Test whether this produces a noticable slow-down for
|
|
|
1235 printing when print-gensym is non-nil. */
|
|
|
1236 && !EQ (obj, oblookup (Vobarray,
|
|
|
1237 string_data (symbol_name (XSYMBOL (obj))),
|
|
|
1238 string_length (symbol_name (XSYMBOL (obj))))))
|
|
0
|
1239 {
|
|
245
|
1240 if (print_depth > 1)
|
|
|
1241 {
|
|
|
1242 Lisp_Object tem = Fassq (obj, Vprint_gensym_alist);
|
|
|
1243 if (CONSP (tem))
|
|
|
1244 {
|
|
|
1245 write_char_internal ("#", printcharfun);
|
|
|
1246 print_internal (XCDR (tem), printcharfun, escapeflag);
|
|
|
1247 write_char_internal ("#", printcharfun);
|
|
|
1248 return;
|
|
|
1249 }
|
|
|
1250 else
|
|
|
1251 {
|
|
|
1252 if (CONSP (Vprint_gensym_alist))
|
|
251
|
1253 {
|
|
|
1254 /* Vprint_gensym_alist is exposed to Lisp, so we
|
|
|
1255 have to be careful. */
|
|
|
1256 CHECK_CONS (XCAR (Vprint_gensym_alist));
|
|
|
1257 CHECK_INT (XCDR (XCAR (Vprint_gensym_alist)));
|
|
|
1258 XSETINT (tem, XINT (XCDR (XCAR (Vprint_gensym_alist))) + 1);
|
|
|
1259 }
|
|
245
|
1260 else
|
|
|
1261 XSETINT (tem, 1);
|
|
|
1262 Vprint_gensym_alist = Fcons (Fcons (obj, tem), Vprint_gensym_alist);
|
|
|
1263
|
|
|
1264 write_char_internal ("#", printcharfun);
|
|
|
1265 print_internal (tem, printcharfun, escapeflag);
|
|
|
1266 write_char_internal ("=", printcharfun);
|
|
|
1267 }
|
|
|
1268 }
|
|
|
1269 write_c_string ("#:", printcharfun);
|
|
0
|
1270 }
|
|
|
1271
|
|
|
1272 /* Does it look like an integer or a float? */
|
|
|
1273 {
|
|
|
1274 Bufbyte *data = string_data (name);
|
|
|
1275 Bytecount confusing = 0;
|
|
|
1276
|
|
|
1277 if (size == 0)
|
|
|
1278 goto not_yet_confused; /* Really confusing */
|
|
|
1279 else if (isdigit (data[0]))
|
|
|
1280 confusing = 0;
|
|
|
1281 else if (size == 1)
|
|
|
1282 goto not_yet_confused;
|
|
|
1283 else if (data[0] == '-' || data[0] == '+')
|
|
|
1284 confusing = 1;
|
|
|
1285 else
|
|
|
1286 goto not_yet_confused;
|
|
|
1287
|
|
|
1288 for (; confusing < size; confusing++)
|
|
173
|
1289 {
|
|
0
|
1290 if (!isdigit (data[confusing]))
|
|
|
1291 {
|
|
|
1292 confusing = 0;
|
|
|
1293 break;
|
|
|
1294 }
|
|
|
1295 }
|
|
|
1296 not_yet_confused:
|
|
|
1297
|
|
|
1298 #ifdef LISP_FLOAT_TYPE
|
|
|
1299 if (!confusing)
|
|
278
|
1300 /* #### Ugh, this is needlessly complex and slow for what we
|
|
|
1301 need here. It might be a good idea to copy equivalent code
|
|
|
1302 from FSF. --hniksic */
|
|
0
|
1303 confusing = isfloat_string ((char *) data);
|
|
|
1304 #endif
|
|
|
1305 if (confusing)
|
|
|
1306 write_char_internal ("\\", printcharfun);
|
|
|
1307 }
|
|
|
1308
|
|
|
1309 {
|
|
|
1310 Lisp_Object nameobj;
|
|
|
1311 Bytecount i;
|
|
|
1312 Bytecount last = 0;
|
|
173
|
1313
|
|
0
|
1314 XSETSTRING (nameobj, name);
|
|
|
1315 for (i = 0; i < size; i++)
|
|
|
1316 {
|
|
380
|
1317 switch (string_byte (name, i))
|
|
0
|
1318 {
|
|
380
|
1319 case 0: case 1: case 2: case 3:
|
|
|
1320 case 4: case 5: case 6: case 7:
|
|
|
1321 case 8: case 9: case 10: case 11:
|
|
|
1322 case 12: case 13: case 14: case 15:
|
|
|
1323 case 16: case 17: case 18: case 19:
|
|
|
1324 case 20: case 21: case 22: case 23:
|
|
|
1325 case 24: case 25: case 26: case 27:
|
|
|
1326 case 28: case 29: case 30: case 31:
|
|
|
1327 case ' ': case '\"': case '\\': case '\'':
|
|
|
1328 case ';': case '#' : case '(' : case ')':
|
|
|
1329 case ',': case '.' : case '`' :
|
|
|
1330 case '[': case ']' : case '?' :
|
|
0
|
1331 if (i > last)
|
|
380
|
1332 output_string (printcharfun, 0, nameobj, last, i - last);
|
|
0
|
1333 write_char_internal ("\\", printcharfun);
|
|
|
1334 last = i;
|
|
|
1335 }
|
|
|
1336 }
|
|
|
1337 output_string (printcharfun, 0, nameobj, last, size - last);
|
|
|
1338 }
|
|
|
1339 UNGCPRO;
|
|
|
1340 }
|
|
|
1341
|
|
278
|
1342 /* #ifdef DEBUG_XEMACS */
|
|
280
|
1343
|
|
|
1344 /* I don't like seeing `Note: Strange doc (not fboundp) for function
|
|
|
1345 alternate-debugging-output @ 429542' -slb */
|
|
|
1346 /* #### Eek! Any clue how to get rid of it? In fact, how about
|
|
|
1347 getting rid of this function altogether? Does anything actually
|
|
|
1348 *use* it? --hniksic */
|
|
|
1349
|
|
412
|
1350 int alternate_do_pointer;
|
|
|
1351 char alternate_do_string[5000];
|
|
0
|
1352
|
|
20
|
1353 DEFUN ("alternate-debugging-output", Falternate_debugging_output, 1, 1, 0, /*
|
|
0
|
1354 Append CHARACTER to the array `alternate_do_string'.
|
|
|
1355 This can be used in place of `external-debugging-output' as a function
|
|
|
1356 to be passed to `print'. Before calling `print', set `alternate_do_pointer'
|
|
|
1357 to 0.
|
|
20
|
1358 */
|
|
|
1359 (character))
|
|
0
|
1360 {
|
|
|
1361 Bufbyte str[MAX_EMCHAR_LEN];
|
|
|
1362 Bytecount len;
|
|
|
1363 int extlen;
|
|
412
|
1364 CONST Extbyte *extptr;
|
|
0
|
1365
|
|
|
1366 CHECK_CHAR_COERCE_INT (character);
|
|
|
1367 len = set_charptr_emchar (str, XCHAR (character));
|
|
412
|
1368 GET_CHARPTR_EXT_DATA_ALLOCA (str, len, FORMAT_TERMINAL, extptr, extlen);
|
|
0
|
1369 memcpy (alternate_do_string + alternate_do_pointer, extptr, extlen);
|
|
|
1370 alternate_do_pointer += extlen;
|
|
|
1371 alternate_do_string[alternate_do_pointer] = 0;
|
|
|
1372 return character;
|
|
|
1373 }
|
|
280
|
1374 /* #endif / * DEBUG_XEMACS */
|
|
0
|
1375
|
|
20
|
1376 DEFUN ("external-debugging-output", Fexternal_debugging_output, 1, 3, 0, /*
|
|
0
|
1377 Write CHAR-OR-STRING to stderr or stdout.
|
|
|
1378 If optional arg STDOUT-P is non-nil, write to stdout; otherwise, write
|
|
|
1379 to stderr. You can use this function to write directly to the terminal.
|
|
|
1380 This function can be used as the STREAM argument of Fprint() or the like.
|
|
|
1381
|
|
|
1382 If you have opened a termscript file (using `open-termscript'), then
|
|
|
1383 the output also will be logged to this file.
|
|
20
|
1384 */
|
|
|
1385 (char_or_string, stdout_p, device))
|
|
0
|
1386 {
|
|
|
1387 FILE *file = 0;
|
|
|
1388 struct console *con = 0;
|
|
|
1389
|
|
|
1390 if (NILP (device))
|
|
|
1391 {
|
|
|
1392 if (!NILP (stdout_p))
|
|
|
1393 file = stdout;
|
|
|
1394 else
|
|
|
1395 file = stderr;
|
|
|
1396 }
|
|
|
1397 else
|
|
|
1398 {
|
|
|
1399 CHECK_LIVE_DEVICE (device);
|
|
|
1400 if (!DEVICE_TTY_P (XDEVICE (device)) &&
|
|
|
1401 !DEVICE_STREAM_P (XDEVICE (device)))
|
|
|
1402 signal_simple_error ("Must be tty or stream device", device);
|
|
|
1403 con = XCONSOLE (DEVICE_CONSOLE (XDEVICE (device)));
|
|
|
1404 if (DEVICE_TTY_P (XDEVICE (device)))
|
|
|
1405 file = 0;
|
|
|
1406 else if (!NILP (stdout_p))
|
|
396
|
1407 file = CONSOLE_STREAM_DATA (con)->out;
|
|
0
|
1408 else
|
|
396
|
1409 file = CONSOLE_STREAM_DATA (con)->err;
|
|
0
|
1410 }
|
|
|
1411
|
|
|
1412 if (STRINGP (char_or_string))
|
|
|
1413 write_string_to_stdio_stream (file, con,
|
|
16
|
1414 XSTRING_DATA (char_or_string),
|
|
|
1415 0, XSTRING_LENGTH (char_or_string),
|
|
412
|
1416 FORMAT_TERMINAL);
|
|
0
|
1417 else
|
|
|
1418 {
|
|
|
1419 Bufbyte str[MAX_EMCHAR_LEN];
|
|
|
1420 Bytecount len;
|
|
|
1421
|
|
|
1422 CHECK_CHAR_COERCE_INT (char_or_string);
|
|
|
1423 len = set_charptr_emchar (str, XCHAR (char_or_string));
|
|
412
|
1424 write_string_to_stdio_stream (file, con, str, 0, len, FORMAT_TERMINAL);
|
|
0
|
1425 }
|
|
|
1426
|
|
|
1427 return char_or_string;
|
|
|
1428 }
|
|
|
1429
|
|
20
|
1430 DEFUN ("open-termscript", Fopen_termscript, 1, 1, "FOpen termscript file: ", /*
|
|
0
|
1431 Start writing all terminal output to FILE as well as the terminal.
|
|
|
1432 FILE = nil means just close any termscript file currently open.
|
|
20
|
1433 */
|
|
|
1434 (file))
|
|
0
|
1435 {
|
|
|
1436 /* This function can GC */
|
|
|
1437 if (termscript != 0)
|
|
|
1438 fclose (termscript);
|
|
|
1439 termscript = 0;
|
|
|
1440
|
|
|
1441 if (! NILP (file))
|
|
|
1442 {
|
|
|
1443 file = Fexpand_file_name (file, Qnil);
|
|
16
|
1444 termscript = fopen ((char *) XSTRING_DATA (file), "w");
|
|
183
|
1445 if (termscript == NULL)
|
|
278
|
1446 report_file_error ("Opening termscript", list1 (file));
|
|
0
|
1447 }
|
|
|
1448 return Qnil;
|
|
|
1449 }
|
|
|
1450
|
|
|
1451 #if 1
|
|
|
1452 /* Debugging kludge -- unbuffered */
|
|
412
|
1453 static int debug_print_length = 50;
|
|
|
1454 static int debug_print_level = 15;
|
|
|
1455 Lisp_Object debug_temp;
|
|
272
|
1456
|
|
|
1457 static void
|
|
0
|
1458 debug_print_no_newline (Lisp_Object debug_print_obj)
|
|
|
1459 {
|
|
|
1460 /* This function can GC */
|
|
412
|
1461 int old_print_readably = print_readably;
|
|
|
1462 int old_print_depth = print_depth;
|
|
|
1463 Lisp_Object old_print_length = Vprint_length;
|
|
|
1464 Lisp_Object old_print_level = Vprint_level;
|
|
|
1465 Lisp_Object old_inhibit_quit = Vinhibit_quit;
|
|
0
|
1466 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
412
|
1467 GCPRO3 (old_print_level, old_print_length, old_inhibit_quit);
|
|
0
|
1468
|
|
|
1469 if (gc_in_progress)
|
|
|
1470 stderr_out ("** gc-in-progress! Bad idea to print anything! **\n");
|
|
|
1471
|
|
|
1472 print_depth = 0;
|
|
412
|
1473 print_readably = 0;
|
|
0
|
1474 print_unbuffered++;
|
|
|
1475 /* Could use unwind-protect, but why bother? */
|
|
|
1476 if (debug_print_length > 0)
|
|
|
1477 Vprint_length = make_int (debug_print_length);
|
|
|
1478 if (debug_print_level > 0)
|
|
|
1479 Vprint_level = make_int (debug_print_level);
|
|
|
1480 print_internal (debug_print_obj, Qexternal_debugging_output, 1);
|
|
412
|
1481 Vinhibit_quit = old_inhibit_quit;
|
|
|
1482 Vprint_level = old_print_level;
|
|
|
1483 Vprint_length = old_print_length;
|
|
|
1484 print_depth = old_print_depth;
|
|
|
1485 print_readably = old_print_readably;
|
|
0
|
1486 print_unbuffered--;
|
|
|
1487 UNGCPRO;
|
|
|
1488 }
|
|
|
1489
|
|
|
1490 void
|
|
|
1491 debug_print (Lisp_Object debug_print_obj)
|
|
|
1492 {
|
|
|
1493 debug_print_no_newline (debug_print_obj);
|
|
272
|
1494 stderr_out ("\n");
|
|
412
|
1495 fflush (stderr);
|
|
0
|
1496 }
|
|
|
1497
|
|
|
1498 /* Debugging kludge -- unbuffered */
|
|
272
|
1499 /* This function provided for the benefit of the debugger. */
|
|
|
1500 void debug_backtrace (void);
|
|
0
|
1501 void
|
|
|
1502 debug_backtrace (void)
|
|
|
1503 {
|
|
|
1504 /* This function can GC */
|
|
380
|
1505 int old_print_readably = print_readably;
|
|
|
1506 int old_print_depth = print_depth;
|
|
|
1507 Lisp_Object old_print_length = Vprint_length;
|
|
|
1508 Lisp_Object old_print_level = Vprint_level;
|
|
|
1509 Lisp_Object old_inhibit_quit = Vinhibit_quit;
|
|
|
1510
|
|
0
|
1511 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
1512 GCPRO3 (old_print_level, old_print_length, old_inhibit_quit);
|
|
|
1513
|
|
|
1514 if (gc_in_progress)
|
|
|
1515 stderr_out ("** gc-in-progress! Bad idea to print anything! **\n");
|
|
|
1516
|
|
|
1517 print_depth = 0;
|
|
|
1518 print_readably = 0;
|
|
|
1519 print_unbuffered++;
|
|
|
1520 /* Could use unwind-protect, but why bother? */
|
|
|
1521 if (debug_print_length > 0)
|
|
|
1522 Vprint_length = make_int (debug_print_length);
|
|
|
1523 if (debug_print_level > 0)
|
|
|
1524 Vprint_level = make_int (debug_print_level);
|
|
380
|
1525
|
|
0
|
1526 Fbacktrace (Qexternal_debugging_output, Qt);
|
|
|
1527 stderr_out ("\n");
|
|
412
|
1528 fflush (stderr);
|
|
380
|
1529
|
|
|
1530 Vinhibit_quit = old_inhibit_quit;
|
|
|
1531 Vprint_level = old_print_level;
|
|
|
1532 Vprint_length = old_print_length;
|
|
|
1533 print_depth = old_print_depth;
|
|
0
|
1534 print_readably = old_print_readably;
|
|
|
1535 print_unbuffered--;
|
|
380
|
1536
|
|
0
|
1537 UNGCPRO;
|
|
|
1538 }
|
|
|
1539
|
|
|
1540 void
|
|
|
1541 debug_short_backtrace (int length)
|
|
|
1542 {
|
|
|
1543 int first = 1;
|
|
|
1544 struct backtrace *bt = backtrace_list;
|
|
|
1545 stderr_out (" [");
|
|
412
|
1546 fflush (stderr);
|
|
0
|
1547 while (length > 0 && bt)
|
|
|
1548 {
|
|
|
1549 if (!first)
|
|
|
1550 {
|
|
|
1551 stderr_out (", ");
|
|
412
|
1552 fflush (stderr);
|
|
0
|
1553 }
|
|
|
1554 if (COMPILED_FUNCTIONP (*bt->function))
|
|
|
1555 {
|
|
233
|
1556 #if defined(COMPILED_FUNCTION_ANNOTATION_HACK)
|
|
380
|
1557 Lisp_Object ann =
|
|
|
1558 compiled_function_annotation (XCOMPILED_FUNCTION (*bt->function));
|
|
233
|
1559 #else
|
|
|
1560 Lisp_Object ann = Qnil;
|
|
|
1561 #endif
|
|
0
|
1562 if (!NILP (ann))
|
|
|
1563 {
|
|
|
1564 stderr_out ("<compiled-function from ");
|
|
412
|
1565 fflush (stderr);
|
|
0
|
1566 debug_print_no_newline (ann);
|
|
|
1567 stderr_out (">");
|
|
412
|
1568 fflush (stderr);
|
|
0
|
1569 }
|
|
|
1570 else
|
|
|
1571 {
|
|
|
1572 stderr_out ("<compiled-function of unknown origin>");
|
|
412
|
1573 fflush (stderr);
|
|
0
|
1574 }
|
|
|
1575 }
|
|
|
1576 else
|
|
|
1577 debug_print_no_newline (*bt->function);
|
|
|
1578 first = 0;
|
|
|
1579 length--;
|
|
|
1580 bt = bt->next;
|
|
|
1581 }
|
|
|
1582 stderr_out ("]\n");
|
|
412
|
1583 fflush (stderr);
|
|
0
|
1584 }
|
|
|
1585
|
|
|
1586 #endif /* debugging kludge */
|
|
|
1587
|
|
|
1588
|
|
|
1589 void
|
|
|
1590 syms_of_print (void)
|
|
|
1591 {
|
|
412
|
1592 defsymbol (&Qprint_escape_newlines, "print-escape-newlines");
|
|
|
1593 defsymbol (&Qprint_readably, "print-readably");
|
|
|
1594
|
|
0
|
1595 defsymbol (&Qstandard_output, "standard-output");
|
|
|
1596
|
|
412
|
1597 #ifdef LISP_FLOAT_TYPE
|
|
|
1598 defsymbol (&Qfloat_output_format, "float-output-format");
|
|
|
1599 #endif
|
|
|
1600
|
|
0
|
1601 defsymbol (&Qprint_length, "print-length");
|
|
|
1602
|
|
|
1603 defsymbol (&Qprint_string_length, "print-string-length");
|
|
171
|
1604
|
|
|
1605 defsymbol (&Qdisplay_error, "display-error");
|
|
|
1606 defsymbol (&Qprint_message_label, "print-message-label");
|
|
|
1607
|
|
20
|
1608 DEFSUBR (Fprin1);
|
|
|
1609 DEFSUBR (Fprin1_to_string);
|
|
|
1610 DEFSUBR (Fprinc);
|
|
|
1611 DEFSUBR (Fprint);
|
|
100
|
1612 DEFSUBR (Ferror_message_string);
|
|
171
|
1613 DEFSUBR (Fdisplay_error);
|
|
20
|
1614 DEFSUBR (Fterpri);
|
|
|
1615 DEFSUBR (Fwrite_char);
|
|
|
1616 DEFSUBR (Falternate_debugging_output);
|
|
412
|
1617 defsymbol (&Qalternate_debugging_output, "alternate-debugging-output");
|
|
20
|
1618 DEFSUBR (Fexternal_debugging_output);
|
|
|
1619 DEFSUBR (Fopen_termscript);
|
|
0
|
1620 defsymbol (&Qexternal_debugging_output, "external-debugging-output");
|
|
20
|
1621 DEFSUBR (Fwith_output_to_temp_buffer);
|
|
0
|
1622 }
|
|
|
1623
|
|
|
1624 void
|
|
412
|
1625 vars_of_print (void)
|
|
398
|
1626 {
|
|
|
1627 alternate_do_pointer = 0;
|
|
0
|
1628
|
|
|
1629 DEFVAR_LISP ("standard-output", &Vstandard_output /*
|
|
|
1630 Output stream `print' uses by default for outputting a character.
|
|
|
1631 This may be any function of one argument.
|
|
|
1632 It may also be a buffer (output is inserted before point)
|
|
|
1633 or a marker (output is inserted and the marker is advanced)
|
|
|
1634 or the symbol t (output appears in the minibuffer line).
|
|
|
1635 */ );
|
|
|
1636 Vstandard_output = Qt;
|
|
|
1637
|
|
|
1638 #ifdef LISP_FLOAT_TYPE
|
|
|
1639 DEFVAR_LISP ("float-output-format", &Vfloat_output_format /*
|
|
|
1640 The format descriptor string that lisp uses to print floats.
|
|
|
1641 This is a %-spec like those accepted by `printf' in C,
|
|
|
1642 but with some restrictions. It must start with the two characters `%.'.
|
|
|
1643 After that comes an integer precision specification,
|
|
|
1644 and then a letter which controls the format.
|
|
|
1645 The letters allowed are `e', `f' and `g'.
|
|
185
|
1646 Use `e' for exponential notation "DIG.DIGITSeEXPT"
|
|
|
1647 Use `f' for decimal point notation "DIGITS.DIGITS".
|
|
0
|
1648 Use `g' to choose the shorter of those two formats for the number at hand.
|
|
|
1649 The precision in any of these cases is the number of digits following
|
|
|
1650 the decimal point. With `f', a precision of 0 means to omit the
|
|
|
1651 decimal point. 0 is not allowed with `f' or `g'.
|
|
|
1652
|
|
|
1653 A value of nil means to use `%.16g'.
|
|
|
1654
|
|
|
1655 Regardless of the value of `float-output-format', a floating point number
|
|
|
1656 will never be printed in such a way that it is ambiguous with an integer;
|
|
|
1657 that is, a floating-point number will always be printed with a decimal
|
|
|
1658 point and/or an exponent, even if the digits following the decimal point
|
|
|
1659 are all zero. This is to preserve read-equivalence.
|
|
|
1660 */ );
|
|
|
1661 Vfloat_output_format = Qnil;
|
|
|
1662 #endif /* LISP_FLOAT_TYPE */
|
|
|
1663
|
|
|
1664 DEFVAR_LISP ("print-length", &Vprint_length /*
|
|
|
1665 Maximum length of list or vector to print before abbreviating.
|
|
|
1666 A value of nil means no limit.
|
|
|
1667 */ );
|
|
|
1668 Vprint_length = Qnil;
|
|
|
1669
|
|
|
1670 DEFVAR_LISP ("print-string-length", &Vprint_string_length /*
|
|
|
1671 Maximum length of string to print before abbreviating.
|
|
|
1672 A value of nil means no limit.
|
|
|
1673 */ );
|
|
|
1674 Vprint_string_length = Qnil;
|
|
|
1675
|
|
|
1676 DEFVAR_LISP ("print-level", &Vprint_level /*
|
|
|
1677 Maximum depth of list nesting to print before abbreviating.
|
|
|
1678 A value of nil means no limit.
|
|
|
1679 */ );
|
|
|
1680 Vprint_level = Qnil;
|
|
|
1681
|
|
|
1682 DEFVAR_BOOL ("print-escape-newlines", &print_escape_newlines /*
|
|
|
1683 Non-nil means print newlines in strings as backslash-n.
|
|
|
1684 */ );
|
|
|
1685 print_escape_newlines = 0;
|
|
|
1686
|
|
|
1687 DEFVAR_BOOL ("print-readably", &print_readably /*
|
|
|
1688 If non-nil, then all objects will be printed in a readable form.
|
|
|
1689 If an object has no readable representation, then an error is signalled.
|
|
|
1690 When print-readably is true, compiled-function objects will be written in
|
|
|
1691 #[...] form instead of in #<compiled-function [...]> form, and two-element
|
|
|
1692 lists of the form (quote object) will be written as the equivalent 'object.
|
|
|
1693 Do not SET this variable; bind it instead.
|
|
|
1694 */ );
|
|
|
1695 print_readably = 0;
|
|
|
1696
|
|
245
|
1697 /* #### I think this should default to t. But we'd better wait
|
|
|
1698 until we see that it works out. */
|
|
|
1699 DEFVAR_LISP ("print-gensym", &Vprint_gensym /*
|
|
0
|
1700 If non-nil, then uninterned symbols will be printed specially.
|
|
|
1701 Uninterned symbols are those which are not present in `obarray', that is,
|
|
|
1702 those which were made with `make-symbol' or by calling `intern' with a
|
|
|
1703 second argument.
|
|
|
1704
|
|
245
|
1705 When print-gensym is true, such symbols will be preceded by "#:",
|
|
|
1706 which causes the reader to create a new symbol instead of interning
|
|
|
1707 and returning an existing one. Beware: the #: syntax creates a new
|
|
|
1708 symbol each time it is seen, so if you print an object which contains
|
|
|
1709 two pointers to the same uninterned symbol, `read' will not duplicate
|
|
|
1710 that structure.
|
|
0
|
1711
|
|
245
|
1712 If the value of `print-gensym' is a cons cell, then in addition
|
|
|
1713 refrain from clearing `print-gensym-alist' on entry to and exit from
|
|
|
1714 printing functions, so that the use of #...# and #...= can carry over
|
|
|
1715 for several separately printed objects.
|
|
0
|
1716 */ );
|
|
245
|
1717 Vprint_gensym = Qnil;
|
|
|
1718
|
|
|
1719 DEFVAR_LISP ("print-gensym-alist", &Vprint_gensym_alist /*
|
|
|
1720 Association list of elements (GENSYM . N) to guide use of #N# and #N=.
|
|
|
1721 In each element, GENSYM is an uninterned symbol that has been associated
|
|
|
1722 with #N= for the specified value of N.
|
|
|
1723 */ );
|
|
|
1724 Vprint_gensym_alist = Qnil;
|
|
0
|
1725
|
|
|
1726 DEFVAR_LISP ("print-message-label", &Vprint_message_label /*
|
|
|
1727 Label for minibuffer messages created with `print'. This should
|
|
|
1728 generally be bound with `let' rather than set. (See `display-message'.)
|
|
|
1729 */ );
|
|
|
1730 Vprint_message_label = Qprint;
|
|
|
1731 }
|
