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428
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1 /* Lisp object printing and output streams.
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|
2 Copyright (C) 1985, 1986, 1988, 1992-1995 Free Software Foundation, Inc.
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3063
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3 Copyright (C) 1995, 1996, 2000, 2001, 2002, 2003, 2005 Ben Wing.
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428
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4
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5 This file is part of XEmacs.
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6
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7 XEmacs is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Synched up with: Not synched with FSF. */
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23
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24 /* This file has been Mule-ized. */
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25
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771
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26 /* Seriously divergent from FSF by this point.
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27
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28 Seriously hacked on by Ben Wing for Mule. All stdio code also by Ben,
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29 as well as the debugging code (initial version of debug_print(), though,
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30 by Jamie Zawinski) and the _fmt interfaces. Also a fair amount of work
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31 by Hrvoje, e.g. floating-point code and rewriting to avoid O(N^2)
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32 consing when outputting to the echo area. Print-circularity code by
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33 Martin? */
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428
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34
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35 #include <config.h>
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36 #include "lisp.h"
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37
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38 #include "backtrace.h"
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39 #include "buffer.h"
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40 #include "bytecode.h"
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872
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41 #include "device-impl.h"
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428
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42 #include "extents.h"
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43 #include "frame.h"
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44 #include "insdel.h"
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45 #include "lstream.h"
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771
|
46 #include "opaque.h"
|
|
800
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47
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872
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48 #include "console-tty-impl.h"
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|
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49 #include "console-stream-impl.h"
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442
|
50 #ifdef WIN32_NATIVE
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51 #include "console-msw.h"
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|
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52 #endif
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428
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53
|
|
800
|
54 #include "sysfile.h"
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55
|
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428
|
56 #include <float.h>
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57 /* Define if not in float.h */
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58 #ifndef DBL_DIG
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|
59 #define DBL_DIG 16
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60 #endif
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61
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62 Lisp_Object Vstandard_output, Qstandard_output;
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63
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64 /* The subroutine object for external-debugging-output is kept here
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65 for the convenience of the debugger. */
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442
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66 Lisp_Object Qexternal_debugging_output, Qalternate_debugging_output;
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67
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|
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68 #ifdef HAVE_MS_WINDOWS
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69 Lisp_Object Qmswindows_debugging_output;
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70 #endif
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428
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71
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72 /* Avoid actual stack overflow in print. */
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73 static int print_depth;
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74
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75 /* Detect most circularities to print finite output. */
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76 #define PRINT_CIRCLE 200
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77 static Lisp_Object being_printed[PRINT_CIRCLE];
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78
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79 /* Maximum length of list or vector to print in full; noninteger means
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80 effectively infinity */
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81
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82 Lisp_Object Vprint_length;
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83 Lisp_Object Qprint_length;
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84
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85 /* Maximum length of string to print in full; noninteger means
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86 effectively infinity */
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87
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88 Lisp_Object Vprint_string_length;
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89 Lisp_Object Qprint_string_length;
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90
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91 /* Maximum depth of list to print in full; noninteger means
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92 effectively infinity. */
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93
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94 Lisp_Object Vprint_level;
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95
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|
|
96 /* Label to use when making echo-area messages. */
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97
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98 Lisp_Object Vprint_message_label;
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99
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100 /* Nonzero means print newlines in strings as \n. */
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101
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102 int print_escape_newlines;
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103 int print_readably;
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104
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105 /* Non-nil means print #: before uninterned symbols.
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106 Neither t nor nil means so that and don't clear Vprint_gensym_alist
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107 on entry to and exit from print functions. */
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108 Lisp_Object Vprint_gensym;
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109 Lisp_Object Vprint_gensym_alist;
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110
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111 Lisp_Object Qdisplay_error;
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112 Lisp_Object Qprint_message_label;
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113
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114 /* Force immediate output of all printed data. Used for debugging. */
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115 int print_unbuffered;
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116
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117 FILE *termscript; /* Stdio stream being used for copy of all output. */
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118
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1346
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119 static void write_string_to_alternate_debugging_output (const Ibyte *str,
|
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771
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120 Bytecount len);
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121
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1957
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122 /* To avoid consing in debug_prin1, we package up variables we need to bind
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123 into an opaque object. */
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124 struct debug_bindings
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125 {
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|
2367
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126 int inhibit_non_essential_conversion_operations;
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1957
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127 int print_depth;
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|
128 int print_readably;
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129 int print_unbuffered;
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|
|
130 int gc_currently_forbidden;
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131 Lisp_Object Vprint_length;
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132 Lisp_Object Vprint_level;
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133 Lisp_Object Vinhibit_quit;
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|
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134 };
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135
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|
|
136 static Lisp_Object debug_prin1_bindings;
|
|
428
|
137
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|
|
138
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|
|
139 int stdout_needs_newline;
|
|
1346
|
140 int stdout_clear_before_next_output;
|
|
428
|
141
|
|
771
|
142 /* Basic function to actually write to a stdio stream or TTY console. */
|
|
|
143
|
|
442
|
144 static void
|
|
1346
|
145 write_string_to_stdio_stream_1 (FILE *stream, struct console *con,
|
|
|
146 const Ibyte *ptr, Bytecount len,
|
|
|
147 int must_flush)
|
|
428
|
148 {
|
|
771
|
149 Extbyte *extptr = 0;
|
|
|
150 Bytecount extlen = 0;
|
|
|
151 int output_is_std_handle =
|
|
|
152 stream ? stream == stdout || stream == stderr :
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|
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153 CONSOLE_TTY_DATA (con)->is_stdio;
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|
|
154
|
|
|
155 if (stream || output_is_std_handle)
|
|
|
156 {
|
|
2367
|
157 if (initialized && !inhibit_non_essential_conversion_operations)
|
|
771
|
158 TO_EXTERNAL_FORMAT (DATA, (ptr, len),
|
|
|
159 ALLOCA, (extptr, extlen),
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|
|
160 Qterminal);
|
|
|
161 else
|
|
|
162 {
|
|
2367
|
163 #ifdef NON_ASCII_INTERNAL_FORMAT
|
|
|
164 #error Do something here
|
|
|
165 #else
|
|
771
|
166 extptr = (Extbyte *) ptr;
|
|
|
167 extlen = (Bytecount) len;
|
|
2367
|
168 #endif
|
|
771
|
169 }
|
|
|
170 }
|
|
|
171
|
|
428
|
172 if (stream)
|
|
|
173 {
|
|
442
|
174 #ifdef WIN32_NATIVE
|
|
|
175 HANDLE errhand = GetStdHandle (STD_INPUT_HANDLE);
|
|
|
176 int no_useful_stderr = errhand == 0 || errhand == INVALID_HANDLE_VALUE;
|
|
|
177
|
|
|
178 if (!no_useful_stderr)
|
|
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179 no_useful_stderr = !PeekNamedPipe (errhand, 0, 0, 0, 0, 0);
|
|
|
180 /* we typically have no useful stdout/stderr under windows if we're
|
|
|
181 being invoked graphically. */
|
|
|
182 if (no_useful_stderr)
|
|
771
|
183 mswindows_output_console_string (ptr, len);
|
|
442
|
184 else
|
|
428
|
185 #endif
|
|
442
|
186 {
|
|
771
|
187 retry_fwrite (extptr, 1, extlen, stream);
|
|
442
|
188 #ifdef WIN32_NATIVE
|
|
|
189 /* Q122442 says that pipes are "treated as files, not as
|
|
|
190 devices", and that this is a feature. Before I found that
|
|
|
191 article, I thought it was a bug. Thanks MS, I feel much
|
|
|
192 better now. - kkm */
|
|
|
193 must_flush = 1;
|
|
|
194 #endif
|
|
|
195 if (must_flush)
|
|
|
196 fflush (stream);
|
|
|
197 }
|
|
428
|
198 }
|
|
|
199 else
|
|
771
|
200 /* The stream itself does conversion to external format */
|
|
|
201 Lstream_write (XLSTREAM (CONSOLE_TTY_DATA (con)->outstream), ptr, len);
|
|
442
|
202
|
|
|
203 if (output_is_std_handle)
|
|
428
|
204 {
|
|
|
205 if (termscript)
|
|
|
206 {
|
|
771
|
207 retry_fwrite (extptr, 1, extlen, termscript);
|
|
428
|
208 fflush (termscript);
|
|
|
209 }
|
|
1346
|
210 stdout_needs_newline = (ptr[len - 1] != '\n');
|
|
428
|
211 }
|
|
|
212 }
|
|
|
213
|
|
1346
|
214 /* Write to a stdio stream or TTY console, first clearing the left side
|
|
|
215 if necessary. */
|
|
|
216
|
|
|
217 static void
|
|
|
218 write_string_to_stdio_stream (FILE *stream, struct console *con,
|
|
|
219 const Ibyte *ptr, Bytecount len,
|
|
|
220 int must_flush)
|
|
|
221 {
|
|
|
222 if (stdout_clear_before_next_output &&
|
|
|
223 (stream ? stream == stdout || stream == stderr :
|
|
|
224 CONSOLE_TTY_DATA (con)->is_stdio))
|
|
|
225 {
|
|
|
226 if (stdout_needs_newline)
|
|
|
227 write_string_to_stdio_stream_1 (stream, con, (Ibyte *) "\n", 1,
|
|
|
228 must_flush);
|
|
|
229 stdout_clear_before_next_output = 0;
|
|
|
230 }
|
|
|
231
|
|
|
232 write_string_to_stdio_stream_1 (stream, con, ptr, len, must_flush);
|
|
|
233 }
|
|
|
234
|
|
|
235 /*
|
|
|
236 EXT_PRINT_STDOUT = stdout or its equivalent (may be a
|
|
|
237 console window under MS Windows)
|
|
|
238 EXT_PRINT_STDERR = stderr or its equivalent (may be a
|
|
|
239 console window under MS Windows)
|
|
|
240 EXT_PRINT_ALTERNATE = an internal character array; see
|
|
|
241 `alternate-debugging-output'
|
|
|
242 EXT_PRINT_MSWINDOWS = Under MS Windows, the "debugging output" that
|
|
|
243 debuggers can hook into; uses OutputDebugString()
|
|
|
244 system call
|
|
|
245 EXT_PRINT_ALL = all of the above except stdout
|
|
|
246 */
|
|
|
247
|
|
|
248 enum ext_print
|
|
|
249 {
|
|
|
250 EXT_PRINT_STDOUT = 1,
|
|
|
251 EXT_PRINT_STDERR = 2,
|
|
|
252 EXT_PRINT_ALTERNATE = 4,
|
|
|
253 EXT_PRINT_MSWINDOWS = 8,
|
|
|
254 EXT_PRINT_ALL = 14
|
|
|
255 };
|
|
|
256
|
|
|
257 static void
|
|
|
258 write_string_to_external_output (const Ibyte *ptr, Bytecount len,
|
|
|
259 int dest)
|
|
|
260 {
|
|
|
261 if (dest & EXT_PRINT_STDOUT)
|
|
|
262 write_string_to_stdio_stream (stdout, 0, ptr, len, 1);
|
|
|
263 if (dest & EXT_PRINT_STDERR)
|
|
|
264 write_string_to_stdio_stream (stderr, 0, ptr, len, 1);
|
|
|
265 if (dest & EXT_PRINT_ALTERNATE)
|
|
|
266 write_string_to_alternate_debugging_output (ptr, len);
|
|
|
267 #ifdef WIN32_NATIVE
|
|
|
268 if (dest & EXT_PRINT_MSWINDOWS)
|
|
|
269 write_string_to_mswindows_debugging_output (ptr, len);
|
|
|
270 #endif
|
|
|
271 }
|
|
|
272
|
|
|
273 /* #### The following function should make use of a call to the
|
|
|
274 emacs_vsprintf_*() functions rather than just using vsprintf. This is
|
|
|
275 the only way to ensure that I18N3 works properly (many implementations
|
|
|
276 of the *printf() functions, including the ones included in glibc, do not
|
|
|
277 implement the %###$ argument-positioning syntax).
|
|
442
|
278
|
|
|
279 Note, however, that to do this, we'd have to
|
|
|
280
|
|
|
281 1) pre-allocate all the lstreams and do whatever else was necessary
|
|
|
282 to make sure that no allocation occurs, since these functions may be
|
|
|
283 called from fatal_error_signal().
|
|
|
284
|
|
|
285 2) (to be really correct) make a new lstream that outputs using
|
|
1346
|
286 mswindows_output_console_string().
|
|
|
287
|
|
|
288 3) A reasonable compromise might be to use emacs_vsprintf() when we're
|
|
|
289 in a safe state, and when not, use plain vsprintf(). */
|
|
442
|
290
|
|
771
|
291 static void
|
|
1346
|
292 write_string_to_external_output_va (const CIbyte *fmt, va_list args,
|
|
|
293 int dest)
|
|
442
|
294 {
|
|
867
|
295 Ibyte kludge[8192];
|
|
771
|
296 Bytecount kludgelen;
|
|
|
297
|
|
2367
|
298 if (initialized && !inhibit_non_essential_conversion_operations)
|
|
771
|
299 fmt = GETTEXT (fmt);
|
|
867
|
300 vsprintf ((CIbyte *) kludge, fmt, args);
|
|
771
|
301 kludgelen = qxestrlen (kludge);
|
|
1346
|
302 write_string_to_external_output (kludge, kludgelen, dest);
|
|
442
|
303 }
|
|
|
304
|
|
771
|
305 /* Output portably to stderr or its equivalent (i.e. may be a console
|
|
|
306 window under MS Windows); do external-format conversion and call GETTEXT
|
|
|
307 on the format string. Automatically flush when done.
|
|
442
|
308
|
|
2731
|
309 NOTE: CIbyte means "internal format" data. This includes the "..."
|
|
|
310 arguments. For numerical arguments, we have to assume that vsprintf
|
|
|
311 will be a good boy and format them as ASCII. For Mule internal coding
|
|
|
312 (and UTF-8 internal coding, if/when we get it), it is safe to pass
|
|
|
313 string values in internal format to be formatted, because zero octets
|
|
|
314 only occur in the NUL character itself. Similarly, it is safe to pass
|
|
|
315 pure ASCII literal strings for these functions. *Everything else must
|
|
|
316 be converted, including all external data.*
|
|
|
317
|
|
|
318 This function is safe to use even when not initialized or when dying --
|
|
|
319 we don't do conversion in such cases. */
|
|
771
|
320
|
|
|
321 void
|
|
867
|
322 stderr_out (const CIbyte *fmt, ...)
|
|
442
|
323 {
|
|
|
324 va_list args;
|
|
|
325 va_start (args, fmt);
|
|
1346
|
326 write_string_to_external_output_va (fmt, args, EXT_PRINT_STDERR);
|
|
442
|
327 va_end (args);
|
|
|
328 }
|
|
|
329
|
|
771
|
330 /* Output portably to stdout or its equivalent (i.e. may be a console
|
|
|
331 window under MS Windows). Works like stderr_out(). */
|
|
442
|
332
|
|
771
|
333 void
|
|
867
|
334 stdout_out (const CIbyte *fmt, ...)
|
|
442
|
335 {
|
|
|
336 va_list args;
|
|
|
337 va_start (args, fmt);
|
|
1346
|
338 write_string_to_external_output_va (fmt, args, EXT_PRINT_STDOUT);
|
|
|
339 va_end (args);
|
|
|
340 }
|
|
|
341
|
|
|
342 /* Output portably to print destination as specified by DEST. */
|
|
|
343
|
|
|
344 void
|
|
|
345 external_out (int dest, const CIbyte *fmt, ...)
|
|
|
346 {
|
|
|
347 va_list args;
|
|
|
348 va_start (args, fmt);
|
|
|
349 write_string_to_external_output_va (fmt, args, dest);
|
|
442
|
350 va_end (args);
|
|
771
|
351 }
|
|
|
352
|
|
|
353 /* Output portably to stderr or its equivalent (i.e. may be a console
|
|
|
354 window under MS Windows), as well as alternate-debugging-output and
|
|
|
355 (under MS Windows) the C debugging output, i.e. OutputDebugString().
|
|
|
356 Works like stderr_out(). */
|
|
|
357
|
|
|
358 void
|
|
867
|
359 debug_out (const CIbyte *fmt, ...)
|
|
771
|
360 {
|
|
|
361 va_list args;
|
|
|
362 va_start (args, fmt);
|
|
1346
|
363 write_string_to_external_output_va (fmt, args, EXT_PRINT_ALL);
|
|
771
|
364 va_end (args);
|
|
442
|
365 }
|
|
|
366
|
|
|
367 DOESNT_RETURN
|
|
867
|
368 fatal (const CIbyte *fmt, ...)
|
|
442
|
369 {
|
|
|
370 va_list args;
|
|
|
371 va_start (args, fmt);
|
|
|
372
|
|
771
|
373 stderr_out ("\nXEmacs: fatal error: ");
|
|
1346
|
374 write_string_to_external_output_va (fmt, args, EXT_PRINT_STDERR);
|
|
442
|
375 stderr_out ("\n");
|
|
|
376
|
|
|
377 va_end (args);
|
|
|
378 exit (1);
|
|
|
379 }
|
|
|
380
|
|
428
|
381 /* Write a string to the output location specified in FUNCTION.
|
|
|
382 Arguments NONRELOC, RELOC, OFFSET, and LEN are as in
|
|
771
|
383 buffer_insert_string_1() in insdel.c.
|
|
|
384
|
|
|
385 FUNCTION is one of
|
|
|
386
|
|
|
387 -- an lstream
|
|
|
388 -- a buffer (insert at point and advance point)
|
|
|
389 -- a marker (insert at marker and advance marker)
|
|
|
390 -- a frame (append to echo area; clear echo area first if
|
|
|
391 `print-message-label' has changed since the last time)
|
|
|
392 -- t or nil (send to stdout)
|
|
|
393 -- a Lisp function of one argument (call to get data output)
|
|
|
394
|
|
|
395 Use Qexternal_debugging_output to get output to stderr.
|
|
|
396 */
|
|
428
|
397
|
|
|
398 static void
|
|
867
|
399 output_string (Lisp_Object function, const Ibyte *nonreloc,
|
|
428
|
400 Lisp_Object reloc, Bytecount offset, Bytecount len)
|
|
|
401 {
|
|
|
402 /* This function can GC */
|
|
|
403 Charcount cclen;
|
|
|
404 /* We change the value of nonreloc (fetching it from reloc as
|
|
|
405 necessary), but we don't want to pass this changed value on to
|
|
|
406 other functions that take both a nonreloc and a reloc, or things
|
|
|
407 may get confused and an assertion failure in
|
|
|
408 fixup_internal_substring() may get triggered. */
|
|
867
|
409 const Ibyte *newnonreloc = nonreloc;
|
|
428
|
410 struct gcpro gcpro1, gcpro2;
|
|
|
411
|
|
|
412 /* Emacs won't print while GCing, but an external debugger might */
|
|
771
|
413 #ifdef NO_PRINT_DURING_GC
|
|
428
|
414 if (gc_in_progress) return;
|
|
771
|
415 #endif
|
|
428
|
416
|
|
|
417 /* Perhaps not necessary but probably safer. */
|
|
|
418 GCPRO2 (function, reloc);
|
|
|
419
|
|
|
420 fixup_internal_substring (newnonreloc, reloc, offset, &len);
|
|
|
421
|
|
|
422 if (STRINGP (reloc))
|
|
771
|
423 {
|
|
793
|
424 cclen = string_offset_byte_to_char_len (reloc, offset, len);
|
|
771
|
425 newnonreloc = XSTRING_DATA (reloc);
|
|
|
426 }
|
|
|
427 else
|
|
|
428 cclen = bytecount_to_charcount (newnonreloc + offset, len);
|
|
428
|
429
|
|
|
430 if (LSTREAMP (function))
|
|
|
431 {
|
|
|
432 if (STRINGP (reloc))
|
|
|
433 {
|
|
|
434 /* Protect against Lstream_write() causing a GC and
|
|
|
435 relocating the string. For small strings, we do it by
|
|
|
436 alloc'ing the string and using a copy; for large strings,
|
|
|
437 we inhibit GC. */
|
|
|
438 if (len < 65536)
|
|
|
439 {
|
|
2367
|
440 Ibyte *copied = alloca_ibytes (len);
|
|
428
|
441 memcpy (copied, newnonreloc + offset, len);
|
|
|
442 Lstream_write (XLSTREAM (function), copied, len);
|
|
|
443 }
|
|
1957
|
444 else if (gc_currently_forbidden)
|
|
|
445 {
|
|
|
446 /* Avoid calling begin_gc_forbidden, which conses. We can reach
|
|
|
447 this point from the cons debug code, which will get us into
|
|
|
448 an infinite loop if we cons again. */
|
|
|
449 Lstream_write (XLSTREAM (function), newnonreloc + offset, len);
|
|
|
450 }
|
|
428
|
451 else
|
|
|
452 {
|
|
771
|
453 int speccount = begin_gc_forbidden ();
|
|
428
|
454 Lstream_write (XLSTREAM (function), newnonreloc + offset, len);
|
|
771
|
455 unbind_to (speccount);
|
|
428
|
456 }
|
|
|
457 }
|
|
|
458 else
|
|
|
459 Lstream_write (XLSTREAM (function), newnonreloc + offset, len);
|
|
|
460
|
|
|
461 if (print_unbuffered)
|
|
|
462 Lstream_flush (XLSTREAM (function));
|
|
|
463 }
|
|
|
464 else if (BUFFERP (function))
|
|
|
465 {
|
|
|
466 CHECK_LIVE_BUFFER (function);
|
|
|
467 buffer_insert_string (XBUFFER (function), nonreloc, reloc, offset, len);
|
|
|
468 }
|
|
|
469 else if (MARKERP (function))
|
|
|
470 {
|
|
|
471 /* marker_position() will err if marker doesn't point anywhere. */
|
|
665
|
472 Charbpos spoint = marker_position (function);
|
|
428
|
473
|
|
|
474 buffer_insert_string_1 (XMARKER (function)->buffer,
|
|
|
475 spoint, nonreloc, reloc, offset, len,
|
|
|
476 0);
|
|
|
477 Fset_marker (function, make_int (spoint + cclen),
|
|
|
478 Fmarker_buffer (function));
|
|
|
479 }
|
|
|
480 else if (FRAMEP (function))
|
|
|
481 {
|
|
|
482 /* This gets used by functions not invoking print_prepare(),
|
|
|
483 such as Fwrite_char, Fterpri, etc.. */
|
|
|
484 struct frame *f = XFRAME (function);
|
|
|
485 CHECK_LIVE_FRAME (function);
|
|
|
486
|
|
|
487 if (!EQ (Vprint_message_label, echo_area_status (f)))
|
|
|
488 clear_echo_area_from_print (f, Qnil, 1);
|
|
|
489 echo_area_append (f, nonreloc, reloc, offset, len, Vprint_message_label);
|
|
|
490 }
|
|
|
491 else if (EQ (function, Qt) || EQ (function, Qnil))
|
|
|
492 {
|
|
771
|
493 write_string_to_stdio_stream (stdout, 0, newnonreloc + offset, len,
|
|
|
494 print_unbuffered);
|
|
|
495 }
|
|
|
496 else if (EQ (function, Qexternal_debugging_output))
|
|
|
497 {
|
|
|
498 /* This is not strictly necessary, and somewhat of a hack, but it
|
|
|
499 avoids having each character passed separately to
|
|
|
500 `external-debugging-output'. #### Why do we pass each character
|
|
|
501 separately, anyway?
|
|
|
502 */
|
|
|
503 write_string_to_stdio_stream (stderr, 0, newnonreloc + offset, len,
|
|
|
504 print_unbuffered);
|
|
428
|
505 }
|
|
|
506 else
|
|
|
507 {
|
|
771
|
508 Charcount ccoff;
|
|
428
|
509 Charcount iii;
|
|
|
510
|
|
771
|
511 if (STRINGP (reloc))
|
|
793
|
512 ccoff = string_index_byte_to_char (reloc, offset);
|
|
771
|
513 else
|
|
|
514 ccoff = bytecount_to_charcount (newnonreloc, offset);
|
|
|
515
|
|
|
516 if (STRINGP (reloc))
|
|
428
|
517 {
|
|
771
|
518 for (iii = ccoff; iii < cclen + ccoff; iii++)
|
|
|
519 {
|
|
867
|
520 call1 (function, make_char (string_ichar (reloc, iii)));
|
|
771
|
521 if (STRINGP (reloc))
|
|
|
522 newnonreloc = XSTRING_DATA (reloc);
|
|
|
523 }
|
|
|
524 }
|
|
|
525 else
|
|
|
526 {
|
|
|
527 for (iii = ccoff; iii < cclen + ccoff; iii++)
|
|
|
528 {
|
|
|
529 call1 (function,
|
|
867
|
530 make_char (itext_ichar_n (newnonreloc, iii)));
|
|
771
|
531 }
|
|
428
|
532 }
|
|
|
533 }
|
|
|
534
|
|
|
535 UNGCPRO;
|
|
|
536 }
|
|
|
537
|
|
|
538 #define RESET_PRINT_GENSYM do { \
|
|
|
539 if (!CONSP (Vprint_gensym)) \
|
|
|
540 Vprint_gensym_alist = Qnil; \
|
|
|
541 } while (0)
|
|
|
542
|
|
1261
|
543 Lisp_Object
|
|
428
|
544 canonicalize_printcharfun (Lisp_Object printcharfun)
|
|
|
545 {
|
|
|
546 if (NILP (printcharfun))
|
|
|
547 printcharfun = Vstandard_output;
|
|
|
548
|
|
1261
|
549 if (!noninteractive && (EQ (printcharfun, Qt) || NILP (printcharfun)))
|
|
428
|
550 printcharfun = Fselected_frame (Qnil); /* print to minibuffer */
|
|
|
551
|
|
|
552 return printcharfun;
|
|
|
553 }
|
|
|
554
|
|
|
555 static Lisp_Object
|
|
|
556 print_prepare (Lisp_Object printcharfun, Lisp_Object *frame_kludge)
|
|
|
557 {
|
|
|
558 /* Emacs won't print while GCing, but an external debugger might */
|
|
771
|
559 #ifdef NO_PRINT_DURING_GC
|
|
428
|
560 if (gc_in_progress)
|
|
|
561 return Qnil;
|
|
771
|
562 #endif
|
|
|
563
|
|
428
|
564 RESET_PRINT_GENSYM;
|
|
|
565
|
|
|
566 printcharfun = canonicalize_printcharfun (printcharfun);
|
|
|
567
|
|
|
568 /* Here we could safely return the canonicalized PRINTCHARFUN.
|
|
|
569 However, if PRINTCHARFUN is a frame, printing of complex
|
|
|
570 structures becomes very expensive, because `append-message'
|
|
|
571 (called by echo_area_append) gets called as many times as
|
|
|
572 output_string() is called (and that's a *lot*). append-message
|
|
|
573 tries to keep top of the message-stack in sync with the contents
|
|
|
574 of " *Echo Area" buffer, consing a new string for each component
|
|
|
575 of the printed structure. For instance, if you print (a a),
|
|
|
576 append-message will cons up the following strings:
|
|
|
577
|
|
|
578 "("
|
|
|
579 "(a"
|
|
|
580 "(a "
|
|
|
581 "(a a"
|
|
|
582 "(a a)"
|
|
|
583
|
|
|
584 and will use only the last one. With larger objects, this turns
|
|
|
585 into an O(n^2) consing frenzy that locks up XEmacs in incessant
|
|
|
586 garbage collection.
|
|
|
587
|
|
|
588 We prevent this by creating a resizing_buffer stream and letting
|
|
|
589 the printer write into it. print_finish() will notice this
|
|
|
590 stream, and invoke echo_area_append() with the stream's buffer,
|
|
|
591 only once. */
|
|
|
592 if (FRAMEP (printcharfun))
|
|
|
593 {
|
|
|
594 CHECK_LIVE_FRAME (printcharfun);
|
|
|
595 *frame_kludge = printcharfun;
|
|
|
596 printcharfun = make_resizing_buffer_output_stream ();
|
|
|
597 }
|
|
|
598
|
|
|
599 return printcharfun;
|
|
|
600 }
|
|
|
601
|
|
|
602 static void
|
|
|
603 print_finish (Lisp_Object stream, Lisp_Object frame_kludge)
|
|
|
604 {
|
|
|
605 /* Emacs won't print while GCing, but an external debugger might */
|
|
771
|
606 #ifdef NO_PRINT_DURING_GC
|
|
428
|
607 if (gc_in_progress)
|
|
|
608 return;
|
|
771
|
609 #endif
|
|
|
610
|
|
428
|
611 RESET_PRINT_GENSYM;
|
|
|
612
|
|
|
613 /* See the comment in print_prepare(). */
|
|
|
614 if (FRAMEP (frame_kludge))
|
|
|
615 {
|
|
|
616 struct frame *f = XFRAME (frame_kludge);
|
|
|
617 Lstream *str = XLSTREAM (stream);
|
|
|
618 CHECK_LIVE_FRAME (frame_kludge);
|
|
|
619
|
|
|
620 Lstream_flush (str);
|
|
|
621 if (!EQ (Vprint_message_label, echo_area_status (f)))
|
|
|
622 clear_echo_area_from_print (f, Qnil, 1);
|
|
|
623 echo_area_append (f, resizing_buffer_stream_ptr (str),
|
|
|
624 Qnil, 0, Lstream_byte_count (str),
|
|
|
625 Vprint_message_label);
|
|
|
626 Lstream_delete (str);
|
|
|
627 }
|
|
|
628 }
|
|
|
629
|
|
|
630
|
|
771
|
631 /* Write internal-format data to STREAM. See output_string() for
|
|
|
632 interpretation of STREAM.
|
|
|
633
|
|
|
634 NOTE: Do not call this with the data of a Lisp_String, as
|
|
428
|
635 printcharfun might cause a GC, which might cause the string's data
|
|
|
636 to be relocated. To princ a Lisp string, use:
|
|
|
637
|
|
|
638 print_internal (string, printcharfun, 0);
|
|
|
639
|
|
|
640 Also note that STREAM should be the result of
|
|
|
641 canonicalize_printcharfun() (i.e. Qnil means stdout, not
|
|
|
642 Vstandard_output, etc.) */
|
|
|
643 void
|
|
867
|
644 write_string_1 (Lisp_Object stream, const Ibyte *str, Bytecount size)
|
|
428
|
645 {
|
|
|
646 /* This function can GC */
|
|
800
|
647 #ifdef ERROR_CHECK_TEXT
|
|
428
|
648 assert (size >= 0);
|
|
|
649 #endif
|
|
|
650 output_string (stream, str, Qnil, 0, size);
|
|
|
651 }
|
|
|
652
|
|
|
653 void
|
|
867
|
654 write_string (Lisp_Object stream, const Ibyte *str)
|
|
771
|
655 {
|
|
|
656 /* This function can GC */
|
|
826
|
657 write_string_1 (stream, str, qxestrlen (str));
|
|
771
|
658 }
|
|
|
659
|
|
|
660 void
|
|
867
|
661 write_c_string (Lisp_Object stream, const CIbyte *str)
|
|
428
|
662 {
|
|
|
663 /* This function can GC */
|
|
867
|
664 write_string_1 (stream, (const Ibyte *) str, strlen (str));
|
|
428
|
665 }
|
|
|
666
|
|
793
|
667 void
|
|
826
|
668 write_eistring (Lisp_Object stream, const Eistring *ei)
|
|
793
|
669 {
|
|
826
|
670 write_string_1 (stream, eidata (ei), eilen (ei));
|
|
793
|
671 }
|
|
|
672
|
|
771
|
673 /* Write a printf-style string to STREAM; see output_string(). */
|
|
|
674
|
|
|
675 void
|
|
867
|
676 write_fmt_string (Lisp_Object stream, const CIbyte *fmt, ...)
|
|
771
|
677 {
|
|
|
678 va_list va;
|
|
867
|
679 Ibyte *str;
|
|
771
|
680 Bytecount len;
|
|
|
681 int count;
|
|
|
682
|
|
|
683 va_start (va, fmt);
|
|
|
684 str = emacs_vsprintf_malloc (fmt, va, &len);
|
|
|
685 va_end (va);
|
|
|
686 count = record_unwind_protect_freeing (str);
|
|
826
|
687 write_string_1 (stream, str, len);
|
|
771
|
688 unbind_to (count);
|
|
|
689 }
|
|
|
690
|
|
|
691 /* Write a printf-style string to STREAM, where the arguments are
|
|
|
692 Lisp objects and not C strings or integers; see output_string().
|
|
|
693
|
|
|
694 #### It shouldn't be necessary to specify the number of arguments.
|
|
|
695 This would require some rewriting of the doprnt() functions, though. */
|
|
|
696
|
|
|
697 void
|
|
867
|
698 write_fmt_string_lisp (Lisp_Object stream, const CIbyte *fmt, int nargs, ...)
|
|
771
|
699 {
|
|
|
700 Lisp_Object *args = alloca_array (Lisp_Object, nargs);
|
|
|
701 va_list va;
|
|
|
702 int i;
|
|
867
|
703 Ibyte *str;
|
|
771
|
704 Bytecount len;
|
|
|
705 int count;
|
|
|
706
|
|
|
707 va_start (va, nargs);
|
|
|
708 for (i = 0; i < nargs; i++)
|
|
|
709 args[i] = va_arg (va, Lisp_Object);
|
|
|
710 va_end (va);
|
|
|
711 str = emacs_vsprintf_malloc_lisp (fmt, Qnil, nargs, args, &len);
|
|
|
712 count = record_unwind_protect_freeing (str);
|
|
826
|
713 write_string_1 (stream, str, len);
|
|
771
|
714 unbind_to (count);
|
|
|
715 }
|
|
|
716
|
|
|
717 void
|
|
867
|
718 stderr_out_lisp (const CIbyte *fmt, int nargs, ...)
|
|
771
|
719 {
|
|
|
720 Lisp_Object *args = alloca_array (Lisp_Object, nargs);
|
|
|
721 va_list va;
|
|
|
722 int i;
|
|
867
|
723 Ibyte *str;
|
|
771
|
724 Bytecount len;
|
|
|
725 int count;
|
|
|
726
|
|
|
727 va_start (va, nargs);
|
|
|
728 for (i = 0; i < nargs; i++)
|
|
|
729 args[i] = va_arg (va, Lisp_Object);
|
|
|
730 va_end (va);
|
|
|
731 str = emacs_vsprintf_malloc_lisp (fmt, Qnil, nargs, args, &len);
|
|
|
732 count = record_unwind_protect_freeing (str);
|
|
826
|
733 write_string_1 (Qexternal_debugging_output, str, len);
|
|
771
|
734 unbind_to (count);
|
|
|
735 }
|
|
|
736
|
|
428
|
737
|
|
|
738 DEFUN ("write-char", Fwrite_char, 1, 2, 0, /*
|
|
444
|
739 Output character CHARACTER to stream STREAM.
|
|
428
|
740 STREAM defaults to the value of `standard-output' (which see).
|
|
|
741 */
|
|
444
|
742 (character, stream))
|
|
428
|
743 {
|
|
|
744 /* This function can GC */
|
|
867
|
745 Ibyte str[MAX_ICHAR_LEN];
|
|
428
|
746 Bytecount len;
|
|
|
747
|
|
444
|
748 CHECK_CHAR_COERCE_INT (character);
|
|
867
|
749 len = set_itext_ichar (str, XCHAR (character));
|
|
428
|
750 output_string (canonicalize_printcharfun (stream), str, Qnil, 0, len);
|
|
444
|
751 return character;
|
|
428
|
752 }
|
|
|
753
|
|
|
754 void
|
|
|
755 temp_output_buffer_setup (Lisp_Object bufname)
|
|
|
756 {
|
|
|
757 /* This function can GC */
|
|
|
758 struct buffer *old = current_buffer;
|
|
|
759 Lisp_Object buf;
|
|
|
760
|
|
|
761 #ifdef I18N3
|
|
|
762 /* #### This function should accept a Lisp_Object instead of a char *,
|
|
|
763 so that proper translation on the buffer name can occur. */
|
|
|
764 #endif
|
|
|
765
|
|
|
766 Fset_buffer (Fget_buffer_create (bufname));
|
|
|
767
|
|
|
768 current_buffer->read_only = Qnil;
|
|
|
769 Ferase_buffer (Qnil);
|
|
|
770
|
|
793
|
771 buf = wrap_buffer (current_buffer);
|
|
428
|
772 specbind (Qstandard_output, buf);
|
|
|
773
|
|
|
774 set_buffer_internal (old);
|
|
|
775 }
|
|
|
776
|
|
|
777 Lisp_Object
|
|
|
778 internal_with_output_to_temp_buffer (Lisp_Object bufname,
|
|
|
779 Lisp_Object (*function) (Lisp_Object arg),
|
|
|
780 Lisp_Object arg,
|
|
|
781 Lisp_Object same_frame)
|
|
|
782 {
|
|
|
783 int speccount = specpdl_depth ();
|
|
|
784 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
785 Lisp_Object buf = Qnil;
|
|
|
786
|
|
|
787 GCPRO3 (buf, arg, same_frame);
|
|
|
788
|
|
|
789 temp_output_buffer_setup (bufname);
|
|
|
790 buf = Vstandard_output;
|
|
|
791
|
|
|
792 arg = (*function) (arg);
|
|
|
793
|
|
|
794 temp_output_buffer_show (buf, same_frame);
|
|
|
795 UNGCPRO;
|
|
|
796
|
|
771
|
797 return unbind_to_1 (speccount, arg);
|
|
428
|
798 }
|
|
|
799
|
|
|
800 DEFUN ("with-output-to-temp-buffer", Fwith_output_to_temp_buffer, 1, UNEVALLED, 0, /*
|
|
|
801 Bind `standard-output' to buffer BUFNAME, eval BODY, then show that buffer.
|
|
|
802 The buffer is cleared out initially, and marked as unmodified when done.
|
|
|
803 All output done by BODY is inserted in that buffer by default.
|
|
|
804 The buffer is displayed in another window, but not selected.
|
|
|
805 The value of the last form in BODY is returned.
|
|
|
806 If BODY does not finish normally, the buffer BUFNAME is not displayed.
|
|
|
807
|
|
|
808 If variable `temp-buffer-show-function' is non-nil, call it at the end
|
|
|
809 to get the buffer displayed. It gets one argument, the buffer to display.
|
|
|
810 */
|
|
|
811 (args))
|
|
|
812 {
|
|
|
813 /* This function can GC */
|
|
|
814 Lisp_Object name = Qnil;
|
|
|
815 int speccount = specpdl_depth ();
|
|
|
816 struct gcpro gcpro1, gcpro2;
|
|
|
817 Lisp_Object val = Qnil;
|
|
|
818
|
|
|
819 #ifdef I18N3
|
|
|
820 /* #### should set the buffer to be translating. See print_internal(). */
|
|
|
821 #endif
|
|
|
822
|
|
|
823 GCPRO2 (name, val);
|
|
|
824 name = Feval (XCAR (args));
|
|
|
825
|
|
|
826 CHECK_STRING (name);
|
|
|
827
|
|
|
828 temp_output_buffer_setup (name);
|
|
|
829 UNGCPRO;
|
|
|
830
|
|
|
831 val = Fprogn (XCDR (args));
|
|
|
832
|
|
|
833 temp_output_buffer_show (Vstandard_output, Qnil);
|
|
|
834
|
|
771
|
835 return unbind_to_1 (speccount, val);
|
|
428
|
836 }
|
|
|
837
|
|
|
838 DEFUN ("terpri", Fterpri, 0, 1, 0, /*
|
|
|
839 Output a newline to STREAM.
|
|
|
840 If STREAM is omitted or nil, the value of `standard-output' is used.
|
|
|
841 */
|
|
|
842 (stream))
|
|
|
843 {
|
|
|
844 /* This function can GC */
|
|
826
|
845 write_c_string (canonicalize_printcharfun (stream), "\n");
|
|
428
|
846 return Qt;
|
|
|
847 }
|
|
|
848
|
|
|
849 DEFUN ("prin1", Fprin1, 1, 2, 0, /*
|
|
|
850 Output the printed representation of OBJECT, any Lisp object.
|
|
|
851 Quoting characters are printed when needed to make output that `read'
|
|
|
852 can handle, whenever this is possible.
|
|
|
853 Output stream is STREAM, or value of `standard-output' (which see).
|
|
|
854 */
|
|
|
855 (object, stream))
|
|
|
856 {
|
|
|
857 /* This function can GC */
|
|
|
858 Lisp_Object frame = Qnil;
|
|
|
859 struct gcpro gcpro1, gcpro2;
|
|
|
860 GCPRO2 (object, stream);
|
|
|
861
|
|
|
862 stream = print_prepare (stream, &frame);
|
|
|
863 print_internal (object, stream, 1);
|
|
|
864 print_finish (stream, frame);
|
|
|
865
|
|
|
866 UNGCPRO;
|
|
|
867 return object;
|
|
|
868 }
|
|
|
869
|
|
|
870 DEFUN ("prin1-to-string", Fprin1_to_string, 1, 2, 0, /*
|
|
|
871 Return a string containing the printed representation of OBJECT,
|
|
|
872 any Lisp object. Quoting characters are used when needed to make output
|
|
|
873 that `read' can handle, whenever this is possible, unless the optional
|
|
|
874 second argument NOESCAPE is non-nil.
|
|
|
875 */
|
|
|
876 (object, noescape))
|
|
|
877 {
|
|
|
878 /* This function can GC */
|
|
|
879 Lisp_Object result = Qnil;
|
|
|
880 Lisp_Object stream = make_resizing_buffer_output_stream ();
|
|
|
881 Lstream *str = XLSTREAM (stream);
|
|
|
882 /* gcpro OBJECT in case a caller forgot to do so */
|
|
|
883 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
884 GCPRO3 (object, stream, result);
|
|
|
885
|
|
|
886 RESET_PRINT_GENSYM;
|
|
|
887 print_internal (object, stream, NILP (noescape));
|
|
|
888 RESET_PRINT_GENSYM;
|
|
|
889 Lstream_flush (str);
|
|
|
890 UNGCPRO;
|
|
|
891 result = make_string (resizing_buffer_stream_ptr (str),
|
|
|
892 Lstream_byte_count (str));
|
|
|
893 Lstream_delete (str);
|
|
|
894 return result;
|
|
|
895 }
|
|
|
896
|
|
|
897 DEFUN ("princ", Fprinc, 1, 2, 0, /*
|
|
|
898 Output the printed representation of OBJECT, any Lisp object.
|
|
|
899 No quoting characters are used; no delimiters are printed around
|
|
|
900 the contents of strings.
|
|
444
|
901 Output stream is STREAM, or value of `standard-output' (which see).
|
|
428
|
902 */
|
|
|
903 (object, stream))
|
|
|
904 {
|
|
|
905 /* This function can GC */
|
|
|
906 Lisp_Object frame = Qnil;
|
|
|
907 struct gcpro gcpro1, gcpro2;
|
|
|
908
|
|
|
909 GCPRO2 (object, stream);
|
|
|
910 stream = print_prepare (stream, &frame);
|
|
|
911 print_internal (object, stream, 0);
|
|
|
912 print_finish (stream, frame);
|
|
|
913 UNGCPRO;
|
|
|
914 return object;
|
|
|
915 }
|
|
|
916
|
|
|
917 DEFUN ("print", Fprint, 1, 2, 0, /*
|
|
|
918 Output the printed representation of OBJECT, with newlines around it.
|
|
|
919 Quoting characters are printed when needed to make output that `read'
|
|
|
920 can handle, whenever this is possible.
|
|
|
921 Output stream is STREAM, or value of `standard-output' (which see).
|
|
|
922 */
|
|
|
923 (object, stream))
|
|
|
924 {
|
|
|
925 /* This function can GC */
|
|
|
926 Lisp_Object frame = Qnil;
|
|
|
927 struct gcpro gcpro1, gcpro2;
|
|
|
928
|
|
|
929 GCPRO2 (object, stream);
|
|
|
930 stream = print_prepare (stream, &frame);
|
|
826
|
931 write_c_string (stream, "\n");
|
|
428
|
932 print_internal (object, stream, 1);
|
|
826
|
933 write_c_string (stream, "\n");
|
|
428
|
934 print_finish (stream, frame);
|
|
|
935 UNGCPRO;
|
|
|
936 return object;
|
|
|
937 }
|
|
|
938
|
|
|
939 /* Print an error message for the error DATA to STREAM. This is a
|
|
|
940 complete implementation of `display-error', which used to be in
|
|
|
941 Lisp (see prim/cmdloop.el). It was ported to C so it can be used
|
|
|
942 efficiently by Ferror_message_string. Fdisplay_error and
|
|
|
943 Ferror_message_string are trivial wrappers around this function.
|
|
|
944
|
|
|
945 STREAM should be the result of canonicalize_printcharfun(). */
|
|
|
946 static void
|
|
|
947 print_error_message (Lisp_Object error_object, Lisp_Object stream)
|
|
|
948 {
|
|
|
949 /* This function can GC */
|
|
|
950 Lisp_Object type = Fcar_safe (error_object);
|
|
|
951 Lisp_Object method = Qnil;
|
|
|
952 Lisp_Object tail;
|
|
|
953
|
|
|
954 /* No need to GCPRO anything under the assumption that ERROR_OBJECT
|
|
|
955 is GCPRO'd. */
|
|
|
956
|
|
|
957 if (! (CONSP (error_object) && SYMBOLP (type)
|
|
|
958 && CONSP (Fget (type, Qerror_conditions, Qnil))))
|
|
|
959 goto error_throw;
|
|
|
960
|
|
|
961 tail = XCDR (error_object);
|
|
|
962 while (!NILP (tail))
|
|
|
963 {
|
|
|
964 if (CONSP (tail))
|
|
|
965 tail = XCDR (tail);
|
|
|
966 else
|
|
|
967 goto error_throw;
|
|
|
968 }
|
|
|
969 tail = Fget (type, Qerror_conditions, Qnil);
|
|
|
970 while (!NILP (tail))
|
|
|
971 {
|
|
|
972 if (!(CONSP (tail) && SYMBOLP (XCAR (tail))))
|
|
|
973 goto error_throw;
|
|
|
974 else if (!NILP (Fget (XCAR (tail), Qdisplay_error, Qnil)))
|
|
|
975 {
|
|
|
976 method = Fget (XCAR (tail), Qdisplay_error, Qnil);
|
|
|
977 goto error_throw;
|
|
|
978 }
|
|
|
979 else
|
|
|
980 tail = XCDR (tail);
|
|
|
981 }
|
|
|
982 /* Default method */
|
|
|
983 {
|
|
|
984 int first = 1;
|
|
|
985 int speccount = specpdl_depth ();
|
|
438
|
986 Lisp_Object frame = Qnil;
|
|
|
987 struct gcpro gcpro1;
|
|
|
988 GCPRO1 (stream);
|
|
428
|
989
|
|
|
990 specbind (Qprint_message_label, Qerror);
|
|
438
|
991 stream = print_prepare (stream, &frame);
|
|
|
992
|
|
428
|
993 tail = Fcdr (error_object);
|
|
|
994 if (EQ (type, Qerror))
|
|
|
995 {
|
|
|
996 print_internal (Fcar (tail), stream, 0);
|
|
|
997 tail = Fcdr (tail);
|
|
|
998 }
|
|
|
999 else
|
|
|
1000 {
|
|
|
1001 Lisp_Object errmsg = Fget (type, Qerror_message, Qnil);
|
|
|
1002 if (NILP (errmsg))
|
|
|
1003 print_internal (type, stream, 0);
|
|
|
1004 else
|
|
|
1005 print_internal (LISP_GETTEXT (errmsg), stream, 0);
|
|
|
1006 }
|
|
|
1007 while (!NILP (tail))
|
|
|
1008 {
|
|
826
|
1009 write_c_string (stream, first ? ": " : ", ");
|
|
563
|
1010 /* Most errors have an explanatory string as their first argument,
|
|
|
1011 and it looks better not to put the quotes around it. */
|
|
|
1012 print_internal (Fcar (tail), stream,
|
|
|
1013 !(first && STRINGP (Fcar (tail))) ||
|
|
|
1014 !NILP (Fget (type, Qerror_lacks_explanatory_string,
|
|
|
1015 Qnil)));
|
|
428
|
1016 tail = Fcdr (tail);
|
|
|
1017 first = 0;
|
|
|
1018 }
|
|
438
|
1019 print_finish (stream, frame);
|
|
|
1020 UNGCPRO;
|
|
771
|
1021 unbind_to (speccount);
|
|
428
|
1022 return;
|
|
|
1023 /* not reached */
|
|
|
1024 }
|
|
|
1025
|
|
|
1026 error_throw:
|
|
|
1027 if (NILP (method))
|
|
|
1028 {
|
|
826
|
1029 write_c_string (stream, GETTEXT ("Peculiar error "));
|
|
428
|
1030 print_internal (error_object, stream, 1);
|
|
|
1031 return;
|
|
|
1032 }
|
|
|
1033 else
|
|
|
1034 {
|
|
|
1035 call2 (method, error_object, stream);
|
|
|
1036 }
|
|
|
1037 }
|
|
|
1038
|
|
|
1039 DEFUN ("error-message-string", Ferror_message_string, 1, 1, 0, /*
|
|
|
1040 Convert ERROR-OBJECT to an error message, and return it.
|
|
|
1041
|
|
|
1042 The format of ERROR-OBJECT should be (ERROR-SYMBOL . DATA). The
|
|
|
1043 message is equivalent to the one that would be issued by
|
|
|
1044 `display-error' with the same argument.
|
|
|
1045 */
|
|
|
1046 (error_object))
|
|
|
1047 {
|
|
|
1048 /* This function can GC */
|
|
|
1049 Lisp_Object result = Qnil;
|
|
|
1050 Lisp_Object stream = make_resizing_buffer_output_stream ();
|
|
|
1051 struct gcpro gcpro1;
|
|
|
1052 GCPRO1 (stream);
|
|
|
1053
|
|
|
1054 print_error_message (error_object, stream);
|
|
|
1055 Lstream_flush (XLSTREAM (stream));
|
|
|
1056 result = make_string (resizing_buffer_stream_ptr (XLSTREAM (stream)),
|
|
|
1057 Lstream_byte_count (XLSTREAM (stream)));
|
|
|
1058 Lstream_delete (XLSTREAM (stream));
|
|
|
1059
|
|
|
1060 UNGCPRO;
|
|
|
1061 return result;
|
|
|
1062 }
|
|
|
1063
|
|
|
1064 DEFUN ("display-error", Fdisplay_error, 2, 2, 0, /*
|
|
|
1065 Display ERROR-OBJECT on STREAM in a user-friendly way.
|
|
|
1066 */
|
|
|
1067 (error_object, stream))
|
|
|
1068 {
|
|
|
1069 /* This function can GC */
|
|
|
1070 print_error_message (error_object, canonicalize_printcharfun (stream));
|
|
|
1071 return Qnil;
|
|
|
1072 }
|
|
|
1073
|
|
|
1074
|
|
|
1075 Lisp_Object Vfloat_output_format;
|
|
|
1076
|
|
|
1077 /*
|
|
|
1078 * This buffer should be at least as large as the max string size of the
|
|
440
|
1079 * largest float, printed in the biggest notation. This is undoubtedly
|
|
428
|
1080 * 20d float_output_format, with the negative of the C-constant "HUGE"
|
|
|
1081 * from <math.h>.
|
|
|
1082 *
|
|
|
1083 * On the vax the worst case is -1e38 in 20d format which takes 61 bytes.
|
|
|
1084 *
|
|
|
1085 * I assume that IEEE-754 format numbers can take 329 bytes for the worst
|
|
|
1086 * case of -1e307 in 20d float_output_format. What is one to do (short of
|
|
|
1087 * re-writing _doprnt to be more sane)?
|
|
|
1088 * -wsr
|
|
|
1089 */
|
|
|
1090 void
|
|
|
1091 float_to_string (char *buf, double data)
|
|
|
1092 {
|
|
867
|
1093 Ibyte *cp, c;
|
|
428
|
1094 int width;
|
|
|
1095
|
|
|
1096 if (NILP (Vfloat_output_format)
|
|
|
1097 || !STRINGP (Vfloat_output_format))
|
|
|
1098 lose:
|
|
|
1099 sprintf (buf, "%.16g", data);
|
|
|
1100 else /* oink oink */
|
|
|
1101 {
|
|
|
1102 /* Check that the spec we have is fully valid.
|
|
|
1103 This means not only valid for printf,
|
|
|
1104 but meant for floats, and reasonable. */
|
|
|
1105 cp = XSTRING_DATA (Vfloat_output_format);
|
|
|
1106
|
|
|
1107 if (cp[0] != '%')
|
|
|
1108 goto lose;
|
|
|
1109 if (cp[1] != '.')
|
|
|
1110 goto lose;
|
|
|
1111
|
|
|
1112 cp += 2;
|
|
|
1113 for (width = 0; (c = *cp, isdigit (c)); cp++)
|
|
|
1114 {
|
|
|
1115 width *= 10;
|
|
|
1116 width += c - '0';
|
|
|
1117 }
|
|
|
1118
|
|
|
1119 if (*cp != 'e' && *cp != 'f' && *cp != 'g' && *cp != 'E' && *cp != 'G')
|
|
|
1120 goto lose;
|
|
|
1121
|
|
|
1122 if (width < (int) (*cp != 'e' && *cp != 'E') || width > DBL_DIG)
|
|
|
1123 goto lose;
|
|
|
1124
|
|
|
1125 if (cp[1] != 0)
|
|
|
1126 goto lose;
|
|
|
1127
|
|
|
1128 sprintf (buf, (char *) XSTRING_DATA (Vfloat_output_format),
|
|
|
1129 data);
|
|
|
1130 }
|
|
|
1131
|
|
|
1132 /* added by jwz: don't allow "1.0" to print as "1"; that destroys
|
|
|
1133 the read-equivalence of lisp objects. (* x 1) and (* x 1.0) do
|
|
|
1134 not do the same thing, so it's important that the printed
|
|
|
1135 representation of that form not be corrupted by the printer.
|
|
|
1136 */
|
|
|
1137 {
|
|
867
|
1138 Ibyte *s = (Ibyte *) buf; /* don't use signed chars here!
|
|
428
|
1139 isdigit() can't hack them! */
|
|
|
1140 if (*s == '-') s++;
|
|
|
1141 for (; *s; s++)
|
|
|
1142 /* if there's a non-digit, then there is a decimal point, or
|
|
|
1143 it's in exponential notation, both of which are ok. */
|
|
|
1144 if (!isdigit (*s))
|
|
|
1145 goto DONE_LABEL;
|
|
|
1146 /* otherwise, we need to hack it. */
|
|
|
1147 *s++ = '.';
|
|
|
1148 *s++ = '0';
|
|
|
1149 *s = 0;
|
|
|
1150 }
|
|
|
1151 DONE_LABEL:
|
|
|
1152
|
|
|
1153 /* Some machines print "0.4" as ".4". I don't like that. */
|
|
|
1154 if (buf [0] == '.' || (buf [0] == '-' && buf [1] == '.'))
|
|
|
1155 {
|
|
|
1156 int i;
|
|
|
1157 for (i = strlen (buf) + 1; i >= 0; i--)
|
|
|
1158 buf [i+1] = buf [i];
|
|
|
1159 buf [(buf [0] == '-' ? 1 : 0)] = '0';
|
|
|
1160 }
|
|
|
1161 }
|
|
|
1162
|
|
2500
|
1163 #define ONE_DIGIT(figure) *p++ = (char) (n / (figure) + '0')
|
|
577
|
1164 #define ONE_DIGIT_ADVANCE(figure) (ONE_DIGIT (figure), n %= (figure))
|
|
|
1165
|
|
|
1166 #define DIGITS_1(figure) ONE_DIGIT (figure)
|
|
|
1167 #define DIGITS_2(figure) ONE_DIGIT_ADVANCE (figure); DIGITS_1 ((figure) / 10)
|
|
|
1168 #define DIGITS_3(figure) ONE_DIGIT_ADVANCE (figure); DIGITS_2 ((figure) / 10)
|
|
|
1169 #define DIGITS_4(figure) ONE_DIGIT_ADVANCE (figure); DIGITS_3 ((figure) / 10)
|
|
|
1170 #define DIGITS_5(figure) ONE_DIGIT_ADVANCE (figure); DIGITS_4 ((figure) / 10)
|
|
|
1171 #define DIGITS_6(figure) ONE_DIGIT_ADVANCE (figure); DIGITS_5 ((figure) / 10)
|
|
|
1172 #define DIGITS_7(figure) ONE_DIGIT_ADVANCE (figure); DIGITS_6 ((figure) / 10)
|
|
|
1173 #define DIGITS_8(figure) ONE_DIGIT_ADVANCE (figure); DIGITS_7 ((figure) / 10)
|
|
|
1174 #define DIGITS_9(figure) ONE_DIGIT_ADVANCE (figure); DIGITS_8 ((figure) / 10)
|
|
|
1175 #define DIGITS_10(figure) ONE_DIGIT_ADVANCE (figure); DIGITS_9 ((figure) / 10)
|
|
|
1176
|
|
|
1177 /* DIGITS_<11-20> are only used on machines with 64-bit longs. */
|
|
428
|
1178
|
|
577
|
1179 #define DIGITS_11(figure) ONE_DIGIT_ADVANCE (figure); DIGITS_10 ((figure) / 10)
|
|
|
1180 #define DIGITS_12(figure) ONE_DIGIT_ADVANCE (figure); DIGITS_11 ((figure) / 10)
|
|
|
1181 #define DIGITS_13(figure) ONE_DIGIT_ADVANCE (figure); DIGITS_12 ((figure) / 10)
|
|
|
1182 #define DIGITS_14(figure) ONE_DIGIT_ADVANCE (figure); DIGITS_13 ((figure) / 10)
|
|
|
1183 #define DIGITS_15(figure) ONE_DIGIT_ADVANCE (figure); DIGITS_14 ((figure) / 10)
|
|
|
1184 #define DIGITS_16(figure) ONE_DIGIT_ADVANCE (figure); DIGITS_15 ((figure) / 10)
|
|
|
1185 #define DIGITS_17(figure) ONE_DIGIT_ADVANCE (figure); DIGITS_16 ((figure) / 10)
|
|
|
1186 #define DIGITS_18(figure) ONE_DIGIT_ADVANCE (figure); DIGITS_17 ((figure) / 10)
|
|
|
1187 #define DIGITS_19(figure) ONE_DIGIT_ADVANCE (figure); DIGITS_18 ((figure) / 10)
|
|
|
1188
|
|
|
1189 /* Print NUMBER to BUFFER in base 10. This is completely equivalent
|
|
|
1190 to `sprintf(buffer, "%ld", number)', only much faster.
|
|
|
1191
|
|
|
1192 The speedup may make a difference in programs that frequently
|
|
|
1193 convert numbers to strings. Some implementations of sprintf,
|
|
|
1194 particularly the one in GNU libc, have been known to be extremely
|
|
|
1195 slow compared to this function.
|
|
|
1196
|
|
|
1197 BUFFER should accept as many bytes as you expect the number to take
|
|
|
1198 up. On machines with 64-bit longs the maximum needed size is 24
|
|
|
1199 bytes. That includes the worst-case digits, the optional `-' sign,
|
|
|
1200 and the trailing \0. */
|
|
|
1201
|
|
|
1202 void
|
|
428
|
1203 long_to_string (char *buffer, long number)
|
|
|
1204 {
|
|
577
|
1205 char *p = buffer;
|
|
|
1206 long n = number;
|
|
|
1207
|
|
428
|
1208 #if (SIZEOF_LONG != 4) && (SIZEOF_LONG != 8)
|
|
577
|
1209 /* We are running in a strange or misconfigured environment. Let
|
|
|
1210 sprintf cope with it. */
|
|
|
1211 sprintf (buffer, "%ld", n);
|
|
|
1212 #else /* (SIZEOF_LONG == 4) || (SIZEOF_LONG == 8) */
|
|
428
|
1213
|
|
577
|
1214 if (n < 0)
|
|
428
|
1215 {
|
|
|
1216 *p++ = '-';
|
|
577
|
1217 n = -n;
|
|
428
|
1218 }
|
|
|
1219
|
|
577
|
1220 if (n < 10) { DIGITS_1 (1); }
|
|
|
1221 else if (n < 100) { DIGITS_2 (10); }
|
|
|
1222 else if (n < 1000) { DIGITS_3 (100); }
|
|
|
1223 else if (n < 10000) { DIGITS_4 (1000); }
|
|
|
1224 else if (n < 100000) { DIGITS_5 (10000); }
|
|
|
1225 else if (n < 1000000) { DIGITS_6 (100000); }
|
|
|
1226 else if (n < 10000000) { DIGITS_7 (1000000); }
|
|
|
1227 else if (n < 100000000) { DIGITS_8 (10000000); }
|
|
|
1228 else if (n < 1000000000) { DIGITS_9 (100000000); }
|
|
|
1229 #if SIZEOF_LONG == 4
|
|
|
1230 /* ``if (1)'' serves only to preserve editor indentation. */
|
|
|
1231 else if (1) { DIGITS_10 (1000000000); }
|
|
|
1232 #else /* SIZEOF_LONG != 4 */
|
|
|
1233 else if (n < 10000000000L) { DIGITS_10 (1000000000L); }
|
|
|
1234 else if (n < 100000000000L) { DIGITS_11 (10000000000L); }
|
|
|
1235 else if (n < 1000000000000L) { DIGITS_12 (100000000000L); }
|
|
|
1236 else if (n < 10000000000000L) { DIGITS_13 (1000000000000L); }
|
|
|
1237 else if (n < 100000000000000L) { DIGITS_14 (10000000000000L); }
|
|
|
1238 else if (n < 1000000000000000L) { DIGITS_15 (100000000000000L); }
|
|
|
1239 else if (n < 10000000000000000L) { DIGITS_16 (1000000000000000L); }
|
|
|
1240 else if (n < 100000000000000000L) { DIGITS_17 (10000000000000000L); }
|
|
|
1241 else if (n < 1000000000000000000L) { DIGITS_18 (100000000000000000L); }
|
|
|
1242 else { DIGITS_19 (1000000000000000000L); }
|
|
|
1243 #endif /* SIZEOF_LONG != 4 */
|
|
|
1244
|
|
428
|
1245 *p = '\0';
|
|
|
1246 #endif /* (SIZEOF_LONG == 4) || (SIZEOF_LONG == 8) */
|
|
|
1247 }
|
|
577
|
1248
|
|
|
1249 #undef ONE_DIGIT
|
|
|
1250 #undef ONE_DIGIT_ADVANCE
|
|
|
1251
|
|
|
1252 #undef DIGITS_1
|
|
|
1253 #undef DIGITS_2
|
|
|
1254 #undef DIGITS_3
|
|
|
1255 #undef DIGITS_4
|
|
|
1256 #undef DIGITS_5
|
|
|
1257 #undef DIGITS_6
|
|
|
1258 #undef DIGITS_7
|
|
|
1259 #undef DIGITS_8
|
|
|
1260 #undef DIGITS_9
|
|
|
1261 #undef DIGITS_10
|
|
|
1262 #undef DIGITS_11
|
|
|
1263 #undef DIGITS_12
|
|
|
1264 #undef DIGITS_13
|
|
|
1265 #undef DIGITS_14
|
|
|
1266 #undef DIGITS_15
|
|
|
1267 #undef DIGITS_16
|
|
|
1268 #undef DIGITS_17
|
|
|
1269 #undef DIGITS_18
|
|
|
1270 #undef DIGITS_19
|
|
428
|
1271
|
|
|
1272 static void
|
|
442
|
1273 print_vector_internal (const char *start, const char *end,
|
|
428
|
1274 Lisp_Object obj,
|
|
|
1275 Lisp_Object printcharfun, int escapeflag)
|
|
|
1276 {
|
|
|
1277 /* This function can GC */
|
|
|
1278 int i;
|
|
|
1279 int len = XVECTOR_LENGTH (obj);
|
|
|
1280 int last = len;
|
|
|
1281 struct gcpro gcpro1, gcpro2;
|
|
|
1282 GCPRO2 (obj, printcharfun);
|
|
|
1283
|
|
|
1284 if (INTP (Vprint_length))
|
|
|
1285 {
|
|
|
1286 int max = XINT (Vprint_length);
|
|
|
1287 if (max < len) last = max;
|
|
|
1288 }
|
|
|
1289
|
|
826
|
1290 write_c_string (printcharfun, start);
|
|
428
|
1291 for (i = 0; i < last; i++)
|
|
|
1292 {
|
|
|
1293 Lisp_Object elt = XVECTOR_DATA (obj)[i];
|
|
826
|
1294 if (i != 0) write_c_string (printcharfun, " ");
|
|
428
|
1295 print_internal (elt, printcharfun, escapeflag);
|
|
|
1296 }
|
|
|
1297 UNGCPRO;
|
|
|
1298 if (last != len)
|
|
826
|
1299 write_c_string (printcharfun, " ...");
|
|
|
1300 write_c_string (printcharfun, end);
|
|
428
|
1301 }
|
|
|
1302
|
|
|
1303 void
|
|
|
1304 print_cons (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
1305 {
|
|
|
1306 /* This function can GC */
|
|
|
1307 struct gcpro gcpro1, gcpro2;
|
|
|
1308
|
|
|
1309 /* If print_readably is on, print (quote -foo-) as '-foo-
|
|
|
1310 (Yeah, this should really be what print-pretty does, but we
|
|
|
1311 don't have the rest of a pretty printer, and this actually
|
|
|
1312 has non-negligible impact on size/speed of .elc files.)
|
|
|
1313 */
|
|
|
1314 if (print_readably &&
|
|
|
1315 EQ (XCAR (obj), Qquote) &&
|
|
|
1316 CONSP (XCDR (obj)) &&
|
|
|
1317 NILP (XCDR (XCDR (obj))))
|
|
|
1318 {
|
|
|
1319 obj = XCAR (XCDR (obj));
|
|
|
1320 GCPRO2 (obj, printcharfun);
|
|
826
|
1321 write_c_string (printcharfun, "\'");
|
|
428
|
1322 UNGCPRO;
|
|
|
1323 print_internal (obj, printcharfun, escapeflag);
|
|
|
1324 return;
|
|
|
1325 }
|
|
|
1326
|
|
|
1327 GCPRO2 (obj, printcharfun);
|
|
826
|
1328 write_c_string (printcharfun, "(");
|
|
428
|
1329
|
|
|
1330 {
|
|
|
1331 int len;
|
|
|
1332 int max = INTP (Vprint_length) ? XINT (Vprint_length) : INT_MAX;
|
|
|
1333 Lisp_Object tortoise;
|
|
|
1334 /* Use tortoise/hare to make sure circular lists don't infloop */
|
|
|
1335
|
|
|
1336 for (tortoise = obj, len = 0;
|
|
|
1337 CONSP (obj);
|
|
|
1338 obj = XCDR (obj), len++)
|
|
|
1339 {
|
|
|
1340 if (len > 0)
|
|
826
|
1341 write_c_string (printcharfun, " ");
|
|
428
|
1342 if (EQ (obj, tortoise) && len > 0)
|
|
|
1343 {
|
|
|
1344 if (print_readably)
|
|
563
|
1345 printing_unreadable_object ("circular list");
|
|
428
|
1346 else
|
|
826
|
1347 write_c_string (printcharfun, "... <circular list>");
|
|
428
|
1348 break;
|
|
|
1349 }
|
|
|
1350 if (len & 1)
|
|
|
1351 tortoise = XCDR (tortoise);
|
|
|
1352 if (len > max)
|
|
|
1353 {
|
|
826
|
1354 write_c_string (printcharfun, "...");
|
|
428
|
1355 break;
|
|
|
1356 }
|
|
|
1357 print_internal (XCAR (obj), printcharfun, escapeflag);
|
|
|
1358 }
|
|
|
1359 }
|
|
|
1360 if (!LISTP (obj))
|
|
|
1361 {
|
|
826
|
1362 write_c_string (printcharfun, " . ");
|
|
428
|
1363 print_internal (obj, printcharfun, escapeflag);
|
|
|
1364 }
|
|
|
1365 UNGCPRO;
|
|
|
1366
|
|
826
|
1367 write_c_string (printcharfun, ")");
|
|
428
|
1368 return;
|
|
|
1369 }
|
|
|
1370
|
|
|
1371 void
|
|
|
1372 print_vector (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
1373 {
|
|
|
1374 print_vector_internal ("[", "]", obj, printcharfun, escapeflag);
|
|
|
1375 }
|
|
|
1376
|
|
|
1377 void
|
|
|
1378 print_string (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
1379 {
|
|
|
1380 /* We distinguish between Bytecounts and Charcounts, to make
|
|
|
1381 Vprint_string_length work correctly under Mule. */
|
|
826
|
1382 Charcount size = string_char_length (obj);
|
|
428
|
1383 Charcount max = size;
|
|
793
|
1384 Bytecount bcmax = XSTRING_LENGTH (obj);
|
|
428
|
1385 struct gcpro gcpro1, gcpro2;
|
|
|
1386 GCPRO2 (obj, printcharfun);
|
|
|
1387
|
|
|
1388 if (INTP (Vprint_string_length) &&
|
|
|
1389 XINT (Vprint_string_length) < max)
|
|
|
1390 {
|
|
|
1391 max = XINT (Vprint_string_length);
|
|
793
|
1392 bcmax = string_index_char_to_byte (obj, max);
|
|
428
|
1393 }
|
|
|
1394 if (max < 0)
|
|
|
1395 {
|
|
|
1396 max = 0;
|
|
|
1397 bcmax = 0;
|
|
|
1398 }
|
|
|
1399
|
|
|
1400 if (!escapeflag)
|
|
|
1401 {
|
|
|
1402 /* This deals with GC-relocation and Mule. */
|
|
|
1403 output_string (printcharfun, 0, obj, 0, bcmax);
|
|
|
1404 if (max < size)
|
|
826
|
1405 write_c_string (printcharfun, " ...");
|
|
428
|
1406 }
|
|
|
1407 else
|
|
|
1408 {
|
|
|
1409 Bytecount i, last = 0;
|
|
|
1410
|
|
826
|
1411 write_c_string (printcharfun, "\"");
|
|
428
|
1412 for (i = 0; i < bcmax; i++)
|
|
|
1413 {
|
|
867
|
1414 Ibyte ch = string_byte (obj, i);
|
|
428
|
1415 if (ch == '\"' || ch == '\\'
|
|
|
1416 || (ch == '\n' && print_escape_newlines))
|
|
|
1417 {
|
|
|
1418 if (i > last)
|
|
|
1419 {
|
|
|
1420 output_string (printcharfun, 0, obj, last,
|
|
|
1421 i - last);
|
|
|
1422 }
|
|
|
1423 if (ch == '\n')
|
|
|
1424 {
|
|
826
|
1425 write_c_string (printcharfun, "\\n");
|
|
428
|
1426 }
|
|
|
1427 else
|
|
|
1428 {
|
|
867
|
1429 Ibyte temp[2];
|
|
826
|
1430 write_c_string (printcharfun, "\\");
|
|
428
|
1431 /* This is correct for Mule because the
|
|
|
1432 character is either \ or " */
|
|
826
|
1433 temp[0] = string_byte (obj, i);
|
|
|
1434 temp[1] = '\0';
|
|
|
1435 write_string (printcharfun, temp);
|
|
428
|
1436 }
|
|
|
1437 last = i + 1;
|
|
|
1438 }
|
|
|
1439 }
|
|
|
1440 if (bcmax > last)
|
|
|
1441 {
|
|
|
1442 output_string (printcharfun, 0, obj, last,
|
|
|
1443 bcmax - last);
|
|
|
1444 }
|
|
|
1445 if (max < size)
|
|
826
|
1446 write_c_string (printcharfun, " ...");
|
|
|
1447 write_c_string (printcharfun, "\"");
|
|
428
|
1448 }
|
|
|
1449 UNGCPRO;
|
|
|
1450 }
|
|
|
1451
|
|
3085
|
1452 void
|
|
428
|
1453 default_object_printer (Lisp_Object obj, Lisp_Object printcharfun,
|
|
2286
|
1454 int UNUSED (escapeflag))
|
|
428
|
1455 {
|
|
3017
|
1456 struct LCRECORD_HEADER *header = (struct LCRECORD_HEADER *) XPNTR (obj);
|
|
428
|
1457
|
|
|
1458 if (print_readably)
|
|
563
|
1459 printing_unreadable_object
|
|
|
1460 ("#<%s 0x%x>",
|
|
3263
|
1461 #ifdef NEW_GC
|
|
2720
|
1462 LHEADER_IMPLEMENTATION (header)->name,
|
|
3263
|
1463 #else /* not NEW_GC */
|
|
563
|
1464 LHEADER_IMPLEMENTATION (&header->lheader)->name,
|
|
3263
|
1465 #endif /* not NEW_GC */
|
|
563
|
1466 header->uid);
|
|
428
|
1467
|
|
800
|
1468 write_fmt_string (printcharfun, "#<%s 0x%x>",
|
|
3263
|
1469 #ifdef NEW_GC
|
|
2720
|
1470 LHEADER_IMPLEMENTATION (header)->name,
|
|
3263
|
1471 #else /* not NEW_GC */
|
|
800
|
1472 LHEADER_IMPLEMENTATION (&header->lheader)->name,
|
|
3263
|
1473 #endif /* not NEW_GC */
|
|
800
|
1474 header->uid);
|
|
428
|
1475 }
|
|
|
1476
|
|
|
1477 void
|
|
|
1478 internal_object_printer (Lisp_Object obj, Lisp_Object printcharfun,
|
|
2286
|
1479 int UNUSED (escapeflag))
|
|
428
|
1480 {
|
|
800
|
1481 write_fmt_string (printcharfun,
|
|
|
1482 "#<INTERNAL OBJECT (XEmacs bug?) (%s) 0x%lx>",
|
|
|
1483 XRECORD_LHEADER_IMPLEMENTATION (obj)->name,
|
|
|
1484 (unsigned long) XPNTR (obj));
|
|
428
|
1485 }
|
|
|
1486
|
|
1204
|
1487 enum printing_badness
|
|
|
1488 {
|
|
|
1489 BADNESS_INTEGER_OBJECT,
|
|
|
1490 BADNESS_POINTER_OBJECT,
|
|
|
1491 BADNESS_NO_TYPE
|
|
|
1492 };
|
|
|
1493
|
|
|
1494 static void
|
|
|
1495 printing_major_badness (Lisp_Object printcharfun,
|
|
2367
|
1496 Ascbyte *badness_string, int type, void *val,
|
|
1204
|
1497 enum printing_badness badness)
|
|
|
1498 {
|
|
|
1499 Ibyte buf[666];
|
|
|
1500
|
|
|
1501 switch (badness)
|
|
|
1502 {
|
|
|
1503 case BADNESS_INTEGER_OBJECT:
|
|
|
1504 qxesprintf (buf, "%s %d object %ld", badness_string, type,
|
|
|
1505 (EMACS_INT) val);
|
|
|
1506 break;
|
|
|
1507
|
|
|
1508 case BADNESS_POINTER_OBJECT:
|
|
|
1509 qxesprintf (buf, "%s %d object %p", badness_string, type, val);
|
|
|
1510 break;
|
|
|
1511
|
|
|
1512 case BADNESS_NO_TYPE:
|
|
|
1513 qxesprintf (buf, "%s object %p", badness_string, val);
|
|
|
1514 break;
|
|
|
1515 }
|
|
|
1516
|
|
|
1517 /* Don't abort or signal if called from debug_print() or already
|
|
|
1518 crashing */
|
|
2367
|
1519 if (!inhibit_non_essential_conversion_operations)
|
|
1204
|
1520 {
|
|
|
1521 #ifdef ERROR_CHECK_TYPES
|
|
2500
|
1522 ABORT ();
|
|
1204
|
1523 #else /* not ERROR_CHECK_TYPES */
|
|
|
1524 if (print_readably)
|
|
|
1525 signal_ferror (Qinternal_error, "printing %s", buf);
|
|
|
1526 #endif /* not ERROR_CHECK_TYPES */
|
|
|
1527 }
|
|
|
1528 write_fmt_string (printcharfun,
|
|
|
1529 "#<EMACS BUG: %s Save your buffers immediately and "
|
|
|
1530 "please report this bug>", buf);
|
|
|
1531 }
|
|
|
1532
|
|
428
|
1533 void
|
|
|
1534 print_internal (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
1535 {
|
|
|
1536 /* This function can GC */
|
|
2001
|
1537 int specdepth = 0;
|
|
1204
|
1538 struct gcpro gcpro1, gcpro2;
|
|
428
|
1539
|
|
|
1540 QUIT;
|
|
|
1541
|
|
771
|
1542 #ifdef NO_PRINT_DURING_GC
|
|
428
|
1543 /* Emacs won't print while GCing, but an external debugger might */
|
|
|
1544 if (gc_in_progress) return;
|
|
771
|
1545 #endif
|
|
|
1546
|
|
1204
|
1547 /* Just to be safe ... */
|
|
|
1548 GCPRO2 (obj, printcharfun);
|
|
428
|
1549
|
|
|
1550 #ifdef I18N3
|
|
|
1551 /* #### Both input and output streams should have a flag associated
|
|
|
1552 with them indicating whether output to that stream, or strings
|
|
|
1553 read from the stream, get translated using Fgettext(). Such a
|
|
|
1554 stream is called a "translating stream". For the minibuffer and
|
|
|
1555 external-debugging-output this is always true on output, and
|
|
|
1556 with-output-to-temp-buffer sets the flag to true for the buffer
|
|
|
1557 it creates. This flag should also be user-settable. Perhaps it
|
|
|
1558 should be split up into two flags, one for input and one for
|
|
|
1559 output. */
|
|
|
1560 #endif
|
|
|
1561
|
|
|
1562 /* Detect circularities and truncate them.
|
|
|
1563 No need to offer any alternative--this is better than an error. */
|
|
|
1564 if (CONSP (obj) || VECTORP (obj) || COMPILED_FUNCTIONP (obj))
|
|
|
1565 {
|
|
|
1566 int i;
|
|
|
1567 for (i = 0; i < print_depth; i++)
|
|
|
1568 if (EQ (obj, being_printed[i]))
|
|
|
1569 {
|
|
603
|
1570 char buf[DECIMAL_PRINT_SIZE (long) + 1];
|
|
428
|
1571 *buf = '#';
|
|
|
1572 long_to_string (buf + 1, i);
|
|
826
|
1573 write_c_string (printcharfun, buf);
|
|
1204
|
1574 UNGCPRO;
|
|
428
|
1575 return;
|
|
|
1576 }
|
|
|
1577 }
|
|
|
1578
|
|
|
1579 being_printed[print_depth] = obj;
|
|
|
1580
|
|
1957
|
1581 /* Avoid calling internal_bind_int, which conses, when called from
|
|
|
1582 debug_prin1. In that case, we have bound print_depth to 0 anyway. */
|
|
2367
|
1583 if (!inhibit_non_essential_conversion_operations)
|
|
1957
|
1584 {
|
|
|
1585 specdepth = internal_bind_int (&print_depth, print_depth + 1);
|
|
|
1586
|
|
|
1587 if (print_depth > PRINT_CIRCLE)
|
|
|
1588 signal_error (Qstack_overflow, "Apparently circular structure being printed", Qunbound);
|
|
|
1589 }
|
|
428
|
1590
|
|
|
1591 switch (XTYPE (obj))
|
|
|
1592 {
|
|
|
1593 case Lisp_Type_Int_Even:
|
|
|
1594 case Lisp_Type_Int_Odd:
|
|
|
1595 {
|
|
603
|
1596 char buf[DECIMAL_PRINT_SIZE (EMACS_INT)];
|
|
428
|
1597 long_to_string (buf, XINT (obj));
|
|
826
|
1598 write_c_string (printcharfun, buf);
|
|
428
|
1599 break;
|
|
|
1600 }
|
|
|
1601
|
|
|
1602 case Lisp_Type_Char:
|
|
|
1603 {
|
|
|
1604 /* God intended that this be #\..., you know. */
|
|
|
1605 char buf[16];
|
|
867
|
1606 Ichar ch = XCHAR (obj);
|
|
428
|
1607 char *p = buf;
|
|
|
1608 *p++ = '?';
|
|
434
|
1609 if (ch < 32)
|
|
|
1610 {
|
|
|
1611 *p++ = '\\';
|
|
|
1612 switch (ch)
|
|
|
1613 {
|
|
|
1614 case '\t': *p++ = 't'; break;
|
|
|
1615 case '\n': *p++ = 'n'; break;
|
|
|
1616 case '\r': *p++ = 'r'; break;
|
|
|
1617 default:
|
|
|
1618 *p++ = '^';
|
|
|
1619 *p++ = ch + 64;
|
|
|
1620 if ((ch + 64) == '\\')
|
|
|
1621 *p++ = '\\';
|
|
|
1622 break;
|
|
|
1623 }
|
|
|
1624 }
|
|
|
1625 else if (ch < 127)
|
|
428
|
1626 {
|
|
434
|
1627 /* syntactically special characters should be escaped. */
|
|
|
1628 switch (ch)
|
|
|
1629 {
|
|
|
1630 case ' ':
|
|
|
1631 case '"':
|
|
|
1632 case '#':
|
|
|
1633 case '\'':
|
|
|
1634 case '(':
|
|
|
1635 case ')':
|
|
|
1636 case ',':
|
|
|
1637 case '.':
|
|
|
1638 case ';':
|
|
|
1639 case '?':
|
|
|
1640 case '[':
|
|
|
1641 case '\\':
|
|
|
1642 case ']':
|
|
|
1643 case '`':
|
|
|
1644 *p++ = '\\';
|
|
|
1645 }
|
|
|
1646 *p++ = ch;
|
|
428
|
1647 }
|
|
|
1648 else if (ch == 127)
|
|
434
|
1649 {
|
|
|
1650 *p++ = '\\', *p++ = '^', *p++ = '?';
|
|
|
1651 }
|
|
|
1652 else if (ch < 160)
|
|
428
|
1653 {
|
|
|
1654 *p++ = '\\', *p++ = '^';
|
|
867
|
1655 p += set_itext_ichar ((Ibyte *) p, ch + 64);
|
|
428
|
1656 }
|
|
|
1657 else
|
|
434
|
1658 {
|
|
867
|
1659 p += set_itext_ichar ((Ibyte *) p, ch);
|
|
434
|
1660 }
|
|
440
|
1661
|
|
867
|
1662 output_string (printcharfun, (Ibyte *) buf, Qnil, 0, p - buf);
|
|
434
|
1663
|
|
428
|
1664 break;
|
|
|
1665 }
|
|
|
1666
|
|
|
1667 case Lisp_Type_Record:
|
|
|
1668 {
|
|
|
1669 struct lrecord_header *lheader = XRECORD_LHEADER (obj);
|
|
1204
|
1670
|
|
|
1671 /* Try to check for various sorts of bogus pointers if we're in a
|
|
|
1672 situation where it may be likely -- i.e. called from
|
|
|
1673 debug_print() or we're already crashing. In such cases,
|
|
|
1674 (further) crashing is counterproductive. */
|
|
428
|
1675
|
|
2367
|
1676 if (inhibit_non_essential_conversion_operations &&
|
|
1204
|
1677 !debug_can_access_memory (lheader, sizeof (*lheader)))
|
|
|
1678 {
|
|
|
1679 write_fmt_string (printcharfun, "#<EMACS BUG: BAD MEMORY %p>",
|
|
|
1680 lheader);
|
|
|
1681 break;
|
|
|
1682 }
|
|
|
1683
|
|
|
1684 if (CONSP (obj) || VECTORP (obj))
|
|
428
|
1685 {
|
|
|
1686 /* If deeper than spec'd depth, print placeholder. */
|
|
|
1687 if (INTP (Vprint_level)
|
|
|
1688 && print_depth > XINT (Vprint_level))
|
|
|
1689 {
|
|
826
|
1690 write_c_string (printcharfun, "...");
|
|
428
|
1691 break;
|
|
|
1692 }
|
|
|
1693 }
|
|
|
1694
|
|
3263
|
1695 #ifndef NEW_GC
|
|
1204
|
1696 if (lheader->type == lrecord_type_free)
|
|
|
1697 {
|
|
|
1698 printing_major_badness (printcharfun, "freed lrecord", 0,
|
|
|
1699 lheader, BADNESS_NO_TYPE);
|
|
|
1700 break;
|
|
|
1701 }
|
|
|
1702 else if (lheader->type == lrecord_type_undefined)
|
|
|
1703 {
|
|
|
1704 printing_major_badness (printcharfun, "lrecord_type_undefined", 0,
|
|
|
1705 lheader, BADNESS_NO_TYPE);
|
|
|
1706 break;
|
|
|
1707 }
|
|
3263
|
1708 #endif /* not NEW_GC */
|
|
1204
|
1709 else if ((int) (lheader->type) >= lrecord_type_count)
|
|
|
1710 {
|
|
|
1711 printing_major_badness (printcharfun, "illegal lrecord type",
|
|
|
1712 (int) (lheader->type),
|
|
|
1713 lheader, BADNESS_POINTER_OBJECT);
|
|
|
1714 break;
|
|
|
1715 }
|
|
|
1716
|
|
|
1717 /* Further checks for bad memory in critical situations. We don't
|
|
|
1718 normally do these because they may be expensive or weird
|
|
|
1719 (e.g. under Unix we typically have to set a SIGSEGV handler and
|
|
|
1720 try to trigger a seg fault). */
|
|
|
1721
|
|
2367
|
1722 if (inhibit_non_essential_conversion_operations)
|
|
1204
|
1723 {
|
|
|
1724 if (!debug_can_access_memory
|
|
|
1725 (lheader, detagged_lisp_object_size (lheader)))
|
|
|
1726 {
|
|
|
1727 write_fmt_string (printcharfun,
|
|
|
1728 "#<EMACS BUG: type %s BAD MEMORY %p>",
|
|
|
1729 LHEADER_IMPLEMENTATION (lheader)->name,
|
|
|
1730 lheader);
|
|
|
1731 break;
|
|
|
1732 }
|
|
|
1733
|
|
|
1734 if (STRINGP (obj))
|
|
|
1735 {
|
|
3092
|
1736 #ifdef NEW_GC
|
|
|
1737 if (!debug_can_access_memory (XSTRING_DATA (obj),
|
|
|
1738 XSTRING_LENGTH (obj)))
|
|
|
1739 {
|
|
|
1740 write_fmt_string
|
|
|
1741 (printcharfun,
|
|
|
1742 "#<EMACS BUG: %p (BAD STRING DATA %p)>",
|
|
|
1743 lheader, XSTRING_DATA (obj));
|
|
|
1744 break;
|
|
|
1745 }
|
|
|
1746 #else /* not NEW_GC */
|
|
1204
|
1747 Lisp_String *l = (Lisp_String *) lheader;
|
|
|
1748 if (!debug_can_access_memory (l->data_, l->size_))
|
|
|
1749 {
|
|
|
1750 write_fmt_string
|
|
|
1751 (printcharfun,
|
|
|
1752 "#<EMACS BUG: %p (BAD STRING DATA %p)>",
|
|
|
1753 lheader, l->data_);
|
|
|
1754 break;
|
|
|
1755 }
|
|
3092
|
1756 #endif /* not NEW_GC */
|
|
1204
|
1757 }
|
|
|
1758 }
|
|
|
1759
|
|
428
|
1760 if (LHEADER_IMPLEMENTATION (lheader)->printer)
|
|
|
1761 ((LHEADER_IMPLEMENTATION (lheader)->printer)
|
|
|
1762 (obj, printcharfun, escapeflag));
|
|
|
1763 else
|
|
3085
|
1764 internal_object_printer (obj, printcharfun, escapeflag);
|
|
428
|
1765 break;
|
|
|
1766 }
|
|
|
1767
|
|
|
1768 default:
|
|
|
1769 {
|
|
|
1770 /* We're in trouble if this happens! */
|
|
1204
|
1771 printing_major_badness (printcharfun, "illegal data type", XTYPE (obj),
|
|
|
1772 LISP_TO_VOID (obj), BADNESS_INTEGER_OBJECT);
|
|
428
|
1773 break;
|
|
|
1774 }
|
|
|
1775 }
|
|
|
1776
|
|
2367
|
1777 if (!inhibit_non_essential_conversion_operations)
|
|
1957
|
1778 unbind_to (specdepth);
|
|
1204
|
1779 UNGCPRO;
|
|
428
|
1780 }
|
|
|
1781
|
|
|
1782 void
|
|
2286
|
1783 print_float (Lisp_Object obj, Lisp_Object printcharfun,
|
|
|
1784 int UNUSED (escapeflag))
|
|
428
|
1785 {
|
|
|
1786 char pigbuf[350]; /* see comments in float_to_string */
|
|
|
1787
|
|
|
1788 float_to_string (pigbuf, XFLOAT_DATA (obj));
|
|
826
|
1789 write_c_string (printcharfun, pigbuf);
|
|
428
|
1790 }
|
|
|
1791
|
|
|
1792 void
|
|
|
1793 print_symbol (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
1794 {
|
|
|
1795 /* This function can GC */
|
|
|
1796 /* #### Bug!! (intern "") isn't printed in some distinguished way */
|
|
|
1797 /* #### (the reader also loses on it) */
|
|
793
|
1798 Lisp_Object name = symbol_name (XSYMBOL (obj));
|
|
|
1799 Bytecount size = XSTRING_LENGTH (name);
|
|
428
|
1800 struct gcpro gcpro1, gcpro2;
|
|
|
1801
|
|
|
1802 if (!escapeflag)
|
|
|
1803 {
|
|
|
1804 /* This deals with GC-relocation */
|
|
793
|
1805 output_string (printcharfun, 0, name, 0, size);
|
|
428
|
1806 return;
|
|
|
1807 }
|
|
|
1808 GCPRO2 (obj, printcharfun);
|
|
|
1809
|
|
|
1810 /* If we print an uninterned symbol as part of a complex object and
|
|
|
1811 the flag print-gensym is non-nil, prefix it with #n= to read the
|
|
|
1812 object back with the #n# reader syntax later if needed. */
|
|
|
1813 if (!NILP (Vprint_gensym)
|
|
442
|
1814 /* #### Test whether this produces a noticeable slow-down for
|
|
428
|
1815 printing when print-gensym is non-nil. */
|
|
|
1816 && !EQ (obj, oblookup (Vobarray,
|
|
793
|
1817 XSTRING_DATA (symbol_name (XSYMBOL (obj))),
|
|
|
1818 XSTRING_LENGTH (symbol_name (XSYMBOL (obj))))))
|
|
428
|
1819 {
|
|
|
1820 if (print_depth > 1)
|
|
|
1821 {
|
|
|
1822 Lisp_Object tem = Fassq (obj, Vprint_gensym_alist);
|
|
|
1823 if (CONSP (tem))
|
|
|
1824 {
|
|
826
|
1825 write_c_string (printcharfun, "#");
|
|
428
|
1826 print_internal (XCDR (tem), printcharfun, escapeflag);
|
|
826
|
1827 write_c_string (printcharfun, "#");
|
|
446
|
1828 UNGCPRO;
|
|
428
|
1829 return;
|
|
|
1830 }
|
|
|
1831 else
|
|
|
1832 {
|
|
|
1833 if (CONSP (Vprint_gensym_alist))
|
|
|
1834 {
|
|
|
1835 /* Vprint_gensym_alist is exposed to Lisp, so we
|
|
|
1836 have to be careful. */
|
|
|
1837 CHECK_CONS (XCAR (Vprint_gensym_alist));
|
|
|
1838 CHECK_INT (XCDR (XCAR (Vprint_gensym_alist)));
|
|
793
|
1839 tem = make_int (XINT (XCDR (XCAR (Vprint_gensym_alist))) + 1);
|
|
428
|
1840 }
|
|
|
1841 else
|
|
793
|
1842 tem = make_int (1);
|
|
428
|
1843 Vprint_gensym_alist = Fcons (Fcons (obj, tem), Vprint_gensym_alist);
|
|
|
1844
|
|
826
|
1845 write_c_string (printcharfun, "#");
|
|
428
|
1846 print_internal (tem, printcharfun, escapeflag);
|
|
826
|
1847 write_c_string (printcharfun, "=");
|
|
428
|
1848 }
|
|
|
1849 }
|
|
826
|
1850 write_c_string (printcharfun, "#:");
|
|
428
|
1851 }
|
|
|
1852
|
|
|
1853 /* Does it look like an integer or a float? */
|
|
|
1854 {
|
|
867
|
1855 Ibyte *data = XSTRING_DATA (name);
|
|
428
|
1856 Bytecount confusing = 0;
|
|
|
1857
|
|
|
1858 if (size == 0)
|
|
|
1859 goto not_yet_confused; /* Really confusing */
|
|
|
1860 else if (isdigit (data[0]))
|
|
|
1861 confusing = 0;
|
|
|
1862 else if (size == 1)
|
|
|
1863 goto not_yet_confused;
|
|
|
1864 else if (data[0] == '-' || data[0] == '+')
|
|
|
1865 confusing = 1;
|
|
|
1866 else
|
|
|
1867 goto not_yet_confused;
|
|
|
1868
|
|
|
1869 for (; confusing < size; confusing++)
|
|
|
1870 {
|
|
|
1871 if (!isdigit (data[confusing]))
|
|
|
1872 {
|
|
|
1873 confusing = 0;
|
|
|
1874 break;
|
|
|
1875 }
|
|
|
1876 }
|
|
|
1877 not_yet_confused:
|
|
|
1878
|
|
|
1879 if (!confusing)
|
|
|
1880 /* #### Ugh, this is needlessly complex and slow for what we
|
|
|
1881 need here. It might be a good idea to copy equivalent code
|
|
|
1882 from FSF. --hniksic */
|
|
|
1883 confusing = isfloat_string ((char *) data);
|
|
|
1884 if (confusing)
|
|
826
|
1885 write_c_string (printcharfun, "\\");
|
|
428
|
1886 }
|
|
|
1887
|
|
|
1888 {
|
|
|
1889 Bytecount i;
|
|
|
1890 Bytecount last = 0;
|
|
|
1891
|
|
|
1892 for (i = 0; i < size; i++)
|
|
|
1893 {
|
|
826
|
1894 switch (string_byte (name, i))
|
|
428
|
1895 {
|
|
|
1896 case 0: case 1: case 2: case 3:
|
|
|
1897 case 4: case 5: case 6: case 7:
|
|
|
1898 case 8: case 9: case 10: case 11:
|
|
|
1899 case 12: case 13: case 14: case 15:
|
|
|
1900 case 16: case 17: case 18: case 19:
|
|
|
1901 case 20: case 21: case 22: case 23:
|
|
|
1902 case 24: case 25: case 26: case 27:
|
|
|
1903 case 28: case 29: case 30: case 31:
|
|
|
1904 case ' ': case '\"': case '\\': case '\'':
|
|
|
1905 case ';': case '#' : case '(' : case ')':
|
|
|
1906 case ',': case '.' : case '`' :
|
|
|
1907 case '[': case ']' : case '?' :
|
|
|
1908 if (i > last)
|
|
793
|
1909 output_string (printcharfun, 0, name, last, i - last);
|
|
826
|
1910 write_c_string (printcharfun, "\\");
|
|
428
|
1911 last = i;
|
|
|
1912 }
|
|
|
1913 }
|
|
793
|
1914 output_string (printcharfun, 0, name, last, size - last);
|
|
428
|
1915 }
|
|
|
1916 UNGCPRO;
|
|
|
1917 }
|
|
|
1918
|
|
|
1919
|
|
442
|
1920 /* Useful on systems or in places where writing to stdout is unavailable or
|
|
|
1921 not working. */
|
|
428
|
1922
|
|
|
1923 static int alternate_do_pointer;
|
|
1957
|
1924 static int alternate_do_size;
|
|
|
1925 static char *alternate_do_string;
|
|
428
|
1926
|
|
|
1927 DEFUN ("alternate-debugging-output", Falternate_debugging_output, 1, 1, 0, /*
|
|
|
1928 Append CHARACTER to the array `alternate_do_string'.
|
|
|
1929 This can be used in place of `external-debugging-output' as a function
|
|
|
1930 to be passed to `print'. Before calling `print', set `alternate_do_pointer'
|
|
|
1931 to 0.
|
|
|
1932 */
|
|
|
1933 (character))
|
|
|
1934 {
|
|
867
|
1935 Ibyte str[MAX_ICHAR_LEN];
|
|
428
|
1936 Bytecount len;
|
|
|
1937
|
|
|
1938 CHECK_CHAR_COERCE_INT (character);
|
|
867
|
1939 len = set_itext_ichar (str, XCHAR (character));
|
|
771
|
1940 write_string_to_alternate_debugging_output (str, len);
|
|
|
1941
|
|
|
1942 return character;
|
|
|
1943 }
|
|
|
1944
|
|
|
1945 static void
|
|
1346
|
1946 write_string_to_alternate_debugging_output (const Ibyte *str, Bytecount len)
|
|
771
|
1947 {
|
|
|
1948 int extlen;
|
|
|
1949 const Extbyte *extptr;
|
|
|
1950 #if 0 /* We want to see the internal representation, don't we? */
|
|
2367
|
1951 if (initialized && !inhibit_non_essential_conversion_operations)
|
|
771
|
1952 TO_EXTERNAL_FORMAT (DATA, (str, len),
|
|
|
1953 ALLOCA, (extptr, extlen),
|
|
|
1954 Qterminal);
|
|
|
1955 else
|
|
|
1956 #endif /* 0 */
|
|
|
1957 {
|
|
|
1958 extlen = len;
|
|
|
1959 extptr = (Extbyte *) str;
|
|
|
1960 }
|
|
1957
|
1961
|
|
|
1962 /* If not yet initialized, just skip it. */
|
|
|
1963 if (alternate_do_string == NULL)
|
|
|
1964 return;
|
|
|
1965
|
|
|
1966 if (alternate_do_pointer + extlen >= alternate_do_size)
|
|
|
1967 {
|
|
|
1968 alternate_do_size =
|
|
|
1969 max(alternate_do_size * 2, alternate_do_pointer + extlen + 1);
|
|
|
1970 XREALLOC_ARRAY (alternate_do_string, char, alternate_do_size);
|
|
|
1971 }
|
|
428
|
1972 memcpy (alternate_do_string + alternate_do_pointer, extptr, extlen);
|
|
|
1973 alternate_do_pointer += extlen;
|
|
|
1974 alternate_do_string[alternate_do_pointer] = 0;
|
|
|
1975 }
|
|
|
1976
|
|
1346
|
1977
|
|
|
1978 DEFUN ("set-device-clear-left-side", Fset_device_clear_left_side, 2, 2, 0, /*
|
|
|
1979 Set whether to output a newline before the next output to a stream device.
|
|
|
1980 This will happen only if the most recently-outputted character was not
|
|
|
1981 a newline -- i.e. it will make sure the left side is "clear" of text.
|
|
|
1982 */
|
|
|
1983 (device, value))
|
|
|
1984 {
|
|
|
1985 if (!NILP (device))
|
|
|
1986 CHECK_LIVE_DEVICE (device);
|
|
|
1987 if (NILP (device) || DEVICE_STREAM_P (XDEVICE (device)))
|
|
|
1988 /* #### This should be per-device */
|
|
|
1989 stdout_clear_before_next_output = !NILP (value);
|
|
|
1990 return Qnil;
|
|
|
1991 }
|
|
|
1992
|
|
|
1993 DEFUN ("device-left-side-clear-p", Fdevice_left_side_clear_p, 0, 1, 0, /*
|
|
|
1994 For stream devices, true if the most recent-outputted character was a newline.
|
|
|
1995 */
|
|
|
1996 (device))
|
|
|
1997 {
|
|
|
1998 if (!NILP (device))
|
|
|
1999 CHECK_LIVE_DEVICE (device);
|
|
|
2000 if (NILP (device) || DEVICE_STREAM_P (XDEVICE (device)))
|
|
|
2001 /* #### This should be per-device */
|
|
|
2002 return stdout_needs_newline ? Qt : Qnil;
|
|
|
2003 return Qnil;
|
|
|
2004 }
|
|
|
2005
|
|
428
|
2006 DEFUN ("external-debugging-output", Fexternal_debugging_output, 1, 3, 0, /*
|
|
|
2007 Write CHAR-OR-STRING to stderr or stdout.
|
|
|
2008 If optional arg STDOUT-P is non-nil, write to stdout; otherwise, write
|
|
|
2009 to stderr. You can use this function to write directly to the terminal.
|
|
|
2010 This function can be used as the STREAM argument of Fprint() or the like.
|
|
|
2011
|
|
442
|
2012 Under MS Windows, this writes output to the console window (which is
|
|
|
2013 created, if necessary), unless XEmacs is being run noninteractively
|
|
|
2014 \(i.e. using the `-batch' argument).
|
|
|
2015
|
|
428
|
2016 If you have opened a termscript file (using `open-termscript'), then
|
|
|
2017 the output also will be logged to this file.
|
|
|
2018 */
|
|
|
2019 (char_or_string, stdout_p, device))
|
|
|
2020 {
|
|
|
2021 FILE *file = 0;
|
|
|
2022 struct console *con = 0;
|
|
|
2023
|
|
|
2024 if (NILP (device))
|
|
|
2025 {
|
|
|
2026 if (!NILP (stdout_p))
|
|
|
2027 file = stdout;
|
|
|
2028 else
|
|
|
2029 file = stderr;
|
|
|
2030 }
|
|
|
2031 else
|
|
|
2032 {
|
|
|
2033 CHECK_LIVE_DEVICE (device);
|
|
|
2034 if (!DEVICE_TTY_P (XDEVICE (device)) &&
|
|
|
2035 !DEVICE_STREAM_P (XDEVICE (device)))
|
|
563
|
2036 wtaerror ("Must be tty or stream device", device);
|
|
428
|
2037 con = XCONSOLE (DEVICE_CONSOLE (XDEVICE (device)));
|
|
|
2038 if (DEVICE_TTY_P (XDEVICE (device)))
|
|
|
2039 file = 0;
|
|
|
2040 else if (!NILP (stdout_p))
|
|
|
2041 file = CONSOLE_STREAM_DATA (con)->out;
|
|
|
2042 else
|
|
|
2043 file = CONSOLE_STREAM_DATA (con)->err;
|
|
|
2044 }
|
|
|
2045
|
|
|
2046 if (STRINGP (char_or_string))
|
|
|
2047 write_string_to_stdio_stream (file, con,
|
|
|
2048 XSTRING_DATA (char_or_string),
|
|
771
|
2049 XSTRING_LENGTH (char_or_string),
|
|
|
2050 print_unbuffered);
|
|
428
|
2051 else
|
|
|
2052 {
|
|
867
|
2053 Ibyte str[MAX_ICHAR_LEN];
|
|
428
|
2054 Bytecount len;
|
|
|
2055
|
|
|
2056 CHECK_CHAR_COERCE_INT (char_or_string);
|
|
867
|
2057 len = set_itext_ichar (str, XCHAR (char_or_string));
|
|
771
|
2058 write_string_to_stdio_stream (file, con, str, len, print_unbuffered);
|
|
428
|
2059 }
|
|
|
2060
|
|
|
2061 return char_or_string;
|
|
|
2062 }
|
|
|
2063
|
|
|
2064 DEFUN ("open-termscript", Fopen_termscript, 1, 1, "FOpen termscript file: ", /*
|
|
444
|
2065 Start writing all terminal output to FILENAME as well as the terminal.
|
|
|
2066 FILENAME = nil means just close any termscript file currently open.
|
|
428
|
2067 */
|
|
444
|
2068 (filename))
|
|
428
|
2069 {
|
|
|
2070 /* This function can GC */
|
|
|
2071 if (termscript != 0)
|
|
|
2072 {
|
|
771
|
2073 retry_fclose (termscript);
|
|
444
|
2074 termscript = 0;
|
|
|
2075 }
|
|
|
2076
|
|
|
2077 if (! NILP (filename))
|
|
|
2078 {
|
|
|
2079 filename = Fexpand_file_name (filename, Qnil);
|
|
771
|
2080 termscript = qxe_fopen (XSTRING_DATA (filename), "w");
|
|
428
|
2081 if (termscript == NULL)
|
|
563
|
2082 report_file_error ("Opening termscript", filename);
|
|
428
|
2083 }
|
|
|
2084 return Qnil;
|
|
|
2085 }
|
|
|
2086
|
|
440
|
2087 static int debug_print_length = 50;
|
|
|
2088 static int debug_print_level = 15;
|
|
|
2089 static int debug_print_readably = -1;
|
|
428
|
2090
|
|
1957
|
2091 /* Restore values temporarily bound by debug_prin1. We use this approach to
|
|
|
2092 avoid consing in debug_prin1. That is verboten, since debug_prin1 can be
|
|
|
2093 called by cons debugging code. */
|
|
|
2094 static Lisp_Object
|
|
2286
|
2095 debug_prin1_exit (Lisp_Object UNUSED (ignored))
|
|
1957
|
2096 {
|
|
|
2097 struct debug_bindings *bindings =
|
|
|
2098 (struct debug_bindings *) XOPAQUE (debug_prin1_bindings)->data;
|
|
2367
|
2099 inhibit_non_essential_conversion_operations =
|
|
|
2100 bindings->inhibit_non_essential_conversion_operations;
|
|
1957
|
2101 print_depth = bindings->print_depth;
|
|
|
2102 print_readably = bindings->print_readably;
|
|
|
2103 print_unbuffered = bindings->print_unbuffered;
|
|
|
2104 gc_currently_forbidden = bindings->gc_currently_forbidden;
|
|
|
2105 Vprint_length = bindings->Vprint_length;
|
|
|
2106 Vprint_level = bindings->Vprint_level;
|
|
|
2107 Vinhibit_quit = bindings->Vinhibit_quit;
|
|
|
2108 return Qnil;
|
|
|
2109 }
|
|
|
2110
|
|
1346
|
2111 /* Print an object, `prin1'-style, to various possible debugging outputs.
|
|
|
2112 Make sure it's completely unbuffered so that, in the event of a crash
|
|
|
2113 somewhere, we see as much as possible that happened before it.
|
|
|
2114 */
|
|
428
|
2115 static void
|
|
1346
|
2116 debug_prin1 (Lisp_Object debug_print_obj, int flags)
|
|
428
|
2117 {
|
|
|
2118 /* This function can GC */
|
|
853
|
2119
|
|
|
2120 /* by doing this, we trick various things that are non-essential
|
|
|
2121 but might cause crashes into not getting executed. */
|
|
1957
|
2122 int specdepth;
|
|
|
2123 struct debug_bindings *bindings =
|
|
|
2124 (struct debug_bindings *) XOPAQUE (debug_prin1_bindings)->data;
|
|
853
|
2125
|
|
2367
|
2126 bindings->inhibit_non_essential_conversion_operations =
|
|
|
2127 inhibit_non_essential_conversion_operations;
|
|
1957
|
2128 bindings->print_depth = print_depth;
|
|
|
2129 bindings->print_readably = print_readably;
|
|
|
2130 bindings->print_unbuffered = print_unbuffered;
|
|
|
2131 bindings->gc_currently_forbidden = gc_currently_forbidden;
|
|
|
2132 bindings->Vprint_length = Vprint_length;
|
|
|
2133 bindings->Vprint_level = Vprint_level;
|
|
|
2134 bindings->Vinhibit_quit = Vinhibit_quit;
|
|
|
2135 specdepth = record_unwind_protect (debug_prin1_exit, Qnil);
|
|
|
2136
|
|
2367
|
2137 inhibit_non_essential_conversion_operations = 1;
|
|
1957
|
2138 print_depth = 0;
|
|
|
2139 print_readably = debug_print_readably != -1 ? debug_print_readably : 0;
|
|
|
2140 print_unbuffered++;
|
|
428
|
2141 if (debug_print_length > 0)
|
|
1957
|
2142 Vprint_length = make_int (debug_print_length);
|
|
428
|
2143 if (debug_print_level > 0)
|
|
1957
|
2144 Vprint_level = make_int (debug_print_level);
|
|
|
2145 Vinhibit_quit = Qt;
|
|
1346
|
2146
|
|
|
2147 if ((flags & EXT_PRINT_STDOUT) || (flags & EXT_PRINT_STDERR))
|
|
|
2148 print_internal (debug_print_obj, Qexternal_debugging_output, 1);
|
|
|
2149 if (flags & EXT_PRINT_ALTERNATE)
|
|
|
2150 print_internal (debug_print_obj, Qalternate_debugging_output, 1);
|
|
442
|
2151 #ifdef WIN32_NATIVE
|
|
1346
|
2152 if (flags & EXT_PRINT_MSWINDOWS)
|
|
|
2153 {
|
|
|
2154 /* Write out to the debugger, as well */
|
|
|
2155 print_internal (debug_print_obj, Qmswindows_debugging_output, 1);
|
|
|
2156 }
|
|
442
|
2157 #endif
|
|
440
|
2158
|
|
802
|
2159 unbind_to (specdepth);
|
|
428
|
2160 }
|
|
|
2161
|
|
|
2162 void
|
|
1204
|
2163 debug_p4 (Lisp_Object obj)
|
|
|
2164 {
|
|
2367
|
2165 inhibit_non_essential_conversion_operations = 1;
|
|
1204
|
2166 if (STRINGP (obj))
|
|
|
2167 debug_out ("\"%s\"", XSTRING_DATA (obj));
|
|
|
2168 else if (CONSP (obj))
|
|
|
2169 {
|
|
|
2170 int first = 1;
|
|
|
2171 do {
|
|
|
2172 debug_out (first ? "(" : " ");
|
|
|
2173 first = 0;
|
|
|
2174 debug_p4 (XCAR (obj));
|
|
|
2175 obj = XCDR (obj);
|
|
|
2176 } while (CONSP (obj));
|
|
|
2177 if (NILP (obj))
|
|
|
2178 debug_out (")");
|
|
|
2179 else
|
|
|
2180 {
|
|
|
2181 debug_out (" . ");
|
|
|
2182 debug_p4 (obj);
|
|
|
2183 debug_out (")");
|
|
|
2184 }
|
|
|
2185 }
|
|
|
2186 else if (VECTORP (obj))
|
|
|
2187 {
|
|
|
2188 int size = XVECTOR_LENGTH (obj);
|
|
|
2189 int i;
|
|
|
2190 int first = 1;
|
|
|
2191
|
|
|
2192 for (i = 0; i < size; i++)
|
|
|
2193 {
|
|
|
2194 debug_out (first ? "[" : " ");
|
|
|
2195 first = 0;
|
|
|
2196 debug_p4 (XVECTOR_DATA (obj)[i]);
|
|
|
2197 debug_out ("]");
|
|
|
2198 }
|
|
|
2199 }
|
|
|
2200 else if (SYMBOLP (obj))
|
|
|
2201 {
|
|
|
2202 Lisp_Object name = XSYMBOL_NAME (obj);
|
|
|
2203 if (!STRINGP (name))
|
|
|
2204 debug_out ("<<bad symbol>>");
|
|
|
2205 else
|
|
|
2206 debug_out ("%s", XSTRING_DATA (name));
|
|
|
2207 }
|
|
|
2208 else if (INTP (obj))
|
|
|
2209 {
|
|
|
2210 debug_out ("%ld", XINT (obj));
|
|
|
2211 }
|
|
|
2212 else if (FLOATP (obj))
|
|
|
2213 {
|
|
|
2214 debug_out ("%g", XFLOAT_DATA (obj));
|
|
|
2215 }
|
|
|
2216 else
|
|
|
2217 {
|
|
|
2218 struct lrecord_header *header =
|
|
|
2219 (struct lrecord_header *) XPNTR (obj);
|
|
|
2220
|
|
|
2221 if (header->type >= lrecord_type_last_built_in_type)
|
|
|
2222 debug_out ("<< bad object type=%d 0x%lx>>", header->type,
|
|
|
2223 (EMACS_INT) header);
|
|
|
2224 else
|
|
3263
|
2225 #ifdef NEW_GC
|
|
3063
|
2226 debug_out ("#<%s addr=0x%lx uid=0x%lx>",
|
|
2720
|
2227 LHEADER_IMPLEMENTATION (header)->name,
|
|
3063
|
2228 (EMACS_INT) header,
|
|
2720
|
2229 (EMACS_INT) ((struct lrecord_header *) header)->uid);
|
|
3263
|
2230 #else /* not NEW_GC */
|
|
3063
|
2231 debug_out ("#<%s addr=0x%lx uid=0x%lx>",
|
|
1204
|
2232 LHEADER_IMPLEMENTATION (header)->name,
|
|
3063
|
2233 (EMACS_INT) header,
|
|
3092
|
2234 (EMACS_INT) (LHEADER_IMPLEMENTATION (header)->basic_p ?
|
|
|
2235 ((struct lrecord_header *) header)->uid :
|
|
|
2236 ((struct old_lcrecord_header *) header)->uid));
|
|
3263
|
2237 #endif /* not NEW_GC */
|
|
1204
|
2238 }
|
|
|
2239
|
|
2367
|
2240 inhibit_non_essential_conversion_operations = 0;
|
|
1204
|
2241 }
|
|
|
2242
|
|
1346
|
2243 static void
|
|
|
2244 ext_print_begin (int dest)
|
|
|
2245 {
|
|
|
2246 if (dest & EXT_PRINT_ALTERNATE)
|
|
|
2247 alternate_do_pointer = 0;
|
|
|
2248 if (dest & (EXT_PRINT_STDERR | EXT_PRINT_STDOUT))
|
|
|
2249 stdout_clear_before_next_output = 1;
|
|
|
2250 }
|
|
|
2251
|
|
|
2252 static void
|
|
|
2253 ext_print_end (int dest)
|
|
|
2254 {
|
|
|
2255 if (dest & (EXT_PRINT_MSWINDOWS | EXT_PRINT_STDERR | EXT_PRINT_STDOUT))
|
|
|
2256 external_out (dest & (EXT_PRINT_MSWINDOWS | EXT_PRINT_STDERR |
|
|
|
2257 EXT_PRINT_STDOUT), "\n");
|
|
|
2258 }
|
|
|
2259
|
|
|
2260 static void
|
|
|
2261 external_debug_print (Lisp_Object object, int dest)
|
|
|
2262 {
|
|
|
2263 ext_print_begin (dest);
|
|
|
2264 debug_prin1 (object, dest);
|
|
|
2265 ext_print_end (dest);
|
|
|
2266 }
|
|
|
2267
|
|
1204
|
2268 void
|
|
|
2269 debug_p3 (Lisp_Object obj)
|
|
|
2270 {
|
|
|
2271 debug_p4 (obj);
|
|
2367
|
2272 inhibit_non_essential_conversion_operations = 1;
|
|
1204
|
2273 debug_out ("\n");
|
|
2367
|
2274 inhibit_non_essential_conversion_operations = 0;
|
|
1204
|
2275 }
|
|
|
2276
|
|
|
2277 void
|
|
428
|
2278 debug_print (Lisp_Object debug_print_obj)
|
|
|
2279 {
|
|
1346
|
2280 external_debug_print (debug_print_obj, EXT_PRINT_ALL);
|
|
428
|
2281 }
|
|
|
2282
|
|
1204
|
2283 /* Getting tired of typing debug_print() ... */
|
|
|
2284 void dp (Lisp_Object debug_print_obj);
|
|
|
2285 void
|
|
|
2286 dp (Lisp_Object debug_print_obj)
|
|
|
2287 {
|
|
|
2288 debug_print (debug_print_obj);
|
|
|
2289 }
|
|
|
2290
|
|
1346
|
2291 /* Alternate debug printer: Return a char * pointer to the output */
|
|
|
2292 char *dpa (Lisp_Object debug_print_obj);
|
|
|
2293 char *
|
|
|
2294 dpa (Lisp_Object debug_print_obj)
|
|
|
2295 {
|
|
|
2296 external_debug_print (debug_print_obj, EXT_PRINT_ALTERNATE);
|
|
|
2297
|
|
|
2298 return alternate_do_string;
|
|
|
2299 }
|
|
|
2300
|
|
428
|
2301 /* Debugging kludge -- unbuffered */
|
|
|
2302 /* This function provided for the benefit of the debugger. */
|
|
|
2303 void
|
|
|
2304 debug_backtrace (void)
|
|
|
2305 {
|
|
|
2306 /* This function can GC */
|
|
853
|
2307
|
|
|
2308 /* by doing this, we trick various things that are non-essential
|
|
|
2309 but might cause crashes into not getting executed. */
|
|
|
2310 int specdepth =
|
|
2367
|
2311 internal_bind_int (&inhibit_non_essential_conversion_operations, 1);
|
|
853
|
2312
|
|
|
2313 internal_bind_int (&print_depth, 0);
|
|
802
|
2314 internal_bind_int (&print_readably, 0);
|
|
|
2315 internal_bind_int (&print_unbuffered, print_unbuffered + 1);
|
|
428
|
2316 if (debug_print_length > 0)
|
|
802
|
2317 internal_bind_lisp_object (&Vprint_length, make_int (debug_print_length));
|
|
428
|
2318 if (debug_print_level > 0)
|
|
802
|
2319 internal_bind_lisp_object (&Vprint_level, make_int (debug_print_level));
|
|
|
2320 /* #### Do we need this? It was in the old code. */
|
|
|
2321 internal_bind_lisp_object (&Vinhibit_quit, Vinhibit_quit);
|
|
428
|
2322
|
|
|
2323 Fbacktrace (Qexternal_debugging_output, Qt);
|
|
|
2324 stderr_out ("\n");
|
|
|
2325
|
|
802
|
2326 unbind_to (specdepth);
|
|
428
|
2327 }
|
|
|
2328
|
|
1204
|
2329 /* Getting tired of typing debug_backtrace() ... */
|
|
|
2330 void db (void);
|
|
|
2331 void
|
|
|
2332 db (void)
|
|
|
2333 {
|
|
|
2334 debug_backtrace ();
|
|
|
2335 }
|
|
|
2336
|
|
428
|
2337 void
|
|
|
2338 debug_short_backtrace (int length)
|
|
|
2339 {
|
|
|
2340 int first = 1;
|
|
|
2341 struct backtrace *bt = backtrace_list;
|
|
771
|
2342 debug_out (" [");
|
|
428
|
2343 while (length > 0 && bt)
|
|
|
2344 {
|
|
|
2345 if (!first)
|
|
|
2346 {
|
|
771
|
2347 debug_out (", ");
|
|
428
|
2348 }
|
|
|
2349 if (COMPILED_FUNCTIONP (*bt->function))
|
|
|
2350 {
|
|
1346
|
2351 #if defined (COMPILED_FUNCTION_ANNOTATION_HACK)
|
|
428
|
2352 Lisp_Object ann =
|
|
|
2353 compiled_function_annotation (XCOMPILED_FUNCTION (*bt->function));
|
|
|
2354 #else
|
|
|
2355 Lisp_Object ann = Qnil;
|
|
|
2356 #endif
|
|
|
2357 if (!NILP (ann))
|
|
|
2358 {
|
|
771
|
2359 debug_out ("<compiled-function from ");
|
|
1346
|
2360 debug_prin1 (ann, EXT_PRINT_ALL);
|
|
771
|
2361 debug_out (">");
|
|
428
|
2362 }
|
|
|
2363 else
|
|
|
2364 {
|
|
771
|
2365 debug_out ("<compiled-function of unknown origin>");
|
|
428
|
2366 }
|
|
|
2367 }
|
|
|
2368 else
|
|
1346
|
2369 debug_prin1 (*bt->function, EXT_PRINT_ALL);
|
|
428
|
2370 first = 0;
|
|
|
2371 length--;
|
|
|
2372 bt = bt->next;
|
|
|
2373 }
|
|
771
|
2374 debug_out ("]\n");
|
|
428
|
2375 }
|
|
|
2376
|
|
|
2377
|
|
|
2378 void
|
|
|
2379 syms_of_print (void)
|
|
|
2380 {
|
|
563
|
2381 DEFSYMBOL (Qstandard_output);
|
|
428
|
2382
|
|
563
|
2383 DEFSYMBOL (Qprint_length);
|
|
428
|
2384
|
|
563
|
2385 DEFSYMBOL (Qprint_string_length);
|
|
428
|
2386
|
|
563
|
2387 DEFSYMBOL (Qdisplay_error);
|
|
|
2388 DEFSYMBOL (Qprint_message_label);
|
|
428
|
2389
|
|
|
2390 DEFSUBR (Fprin1);
|
|
|
2391 DEFSUBR (Fprin1_to_string);
|
|
|
2392 DEFSUBR (Fprinc);
|
|
|
2393 DEFSUBR (Fprint);
|
|
|
2394 DEFSUBR (Ferror_message_string);
|
|
|
2395 DEFSUBR (Fdisplay_error);
|
|
|
2396 DEFSUBR (Fterpri);
|
|
|
2397 DEFSUBR (Fwrite_char);
|
|
|
2398 DEFSUBR (Falternate_debugging_output);
|
|
1346
|
2399 DEFSUBR (Fset_device_clear_left_side);
|
|
|
2400 DEFSUBR (Fdevice_left_side_clear_p);
|
|
428
|
2401 DEFSUBR (Fexternal_debugging_output);
|
|
|
2402 DEFSUBR (Fopen_termscript);
|
|
563
|
2403 DEFSYMBOL (Qexternal_debugging_output);
|
|
|
2404 DEFSYMBOL (Qalternate_debugging_output);
|
|
442
|
2405 #ifdef HAVE_MS_WINDOWS
|
|
563
|
2406 DEFSYMBOL (Qmswindows_debugging_output);
|
|
442
|
2407 #endif
|
|
428
|
2408 DEFSUBR (Fwith_output_to_temp_buffer);
|
|
|
2409 }
|
|
|
2410
|
|
|
2411 void
|
|
|
2412 reinit_vars_of_print (void)
|
|
|
2413 {
|
|
|
2414 alternate_do_pointer = 0;
|
|
|
2415 }
|
|
|
2416
|
|
|
2417 void
|
|
|
2418 vars_of_print (void)
|
|
|
2419 {
|
|
|
2420 DEFVAR_LISP ("standard-output", &Vstandard_output /*
|
|
|
2421 Output stream `print' uses by default for outputting a character.
|
|
|
2422 This may be any function of one argument.
|
|
|
2423 It may also be a buffer (output is inserted before point)
|
|
|
2424 or a marker (output is inserted and the marker is advanced)
|
|
|
2425 or the symbol t (output appears in the minibuffer line).
|
|
|
2426 */ );
|
|
|
2427 Vstandard_output = Qt;
|
|
|
2428
|
|
|
2429 DEFVAR_LISP ("float-output-format", &Vfloat_output_format /*
|
|
|
2430 The format descriptor string that lisp uses to print floats.
|
|
|
2431 This is a %-spec like those accepted by `printf' in C,
|
|
|
2432 but with some restrictions. It must start with the two characters `%.'.
|
|
|
2433 After that comes an integer precision specification,
|
|
|
2434 and then a letter which controls the format.
|
|
|
2435 The letters allowed are `e', `f' and `g'.
|
|
|
2436 Use `e' for exponential notation "DIG.DIGITSeEXPT"
|
|
|
2437 Use `f' for decimal point notation "DIGITS.DIGITS".
|
|
|
2438 Use `g' to choose the shorter of those two formats for the number at hand.
|
|
|
2439 The precision in any of these cases is the number of digits following
|
|
|
2440 the decimal point. With `f', a precision of 0 means to omit the
|
|
|
2441 decimal point. 0 is not allowed with `f' or `g'.
|
|
|
2442
|
|
|
2443 A value of nil means to use `%.16g'.
|
|
|
2444
|
|
|
2445 Regardless of the value of `float-output-format', a floating point number
|
|
|
2446 will never be printed in such a way that it is ambiguous with an integer;
|
|
|
2447 that is, a floating-point number will always be printed with a decimal
|
|
|
2448 point and/or an exponent, even if the digits following the decimal point
|
|
|
2449 are all zero. This is to preserve read-equivalence.
|
|
|
2450 */ );
|
|
|
2451 Vfloat_output_format = Qnil;
|
|
|
2452
|
|
|
2453 DEFVAR_LISP ("print-length", &Vprint_length /*
|
|
|
2454 Maximum length of list or vector to print before abbreviating.
|
|
|
2455 A value of nil means no limit.
|
|
|
2456 */ );
|
|
|
2457 Vprint_length = Qnil;
|
|
|
2458
|
|
|
2459 DEFVAR_LISP ("print-string-length", &Vprint_string_length /*
|
|
|
2460 Maximum length of string to print before abbreviating.
|
|
|
2461 A value of nil means no limit.
|
|
|
2462 */ );
|
|
|
2463 Vprint_string_length = Qnil;
|
|
|
2464
|
|
|
2465 DEFVAR_LISP ("print-level", &Vprint_level /*
|
|
|
2466 Maximum depth of list nesting to print before abbreviating.
|
|
|
2467 A value of nil means no limit.
|
|
|
2468 */ );
|
|
|
2469 Vprint_level = Qnil;
|
|
|
2470
|
|
|
2471 DEFVAR_BOOL ("print-escape-newlines", &print_escape_newlines /*
|
|
|
2472 Non-nil means print newlines in strings as backslash-n.
|
|
|
2473 */ );
|
|
|
2474 print_escape_newlines = 0;
|
|
|
2475
|
|
|
2476 DEFVAR_BOOL ("print-readably", &print_readably /*
|
|
|
2477 If non-nil, then all objects will be printed in a readable form.
|
|
|
2478 If an object has no readable representation, then an error is signalled.
|
|
|
2479 When print-readably is true, compiled-function objects will be written in
|
|
|
2480 #[...] form instead of in #<compiled-function [...]> form, and two-element
|
|
|
2481 lists of the form (quote object) will be written as the equivalent 'object.
|
|
|
2482 Do not SET this variable; bind it instead.
|
|
|
2483 */ );
|
|
|
2484 print_readably = 0;
|
|
|
2485
|
|
|
2486 /* #### I think this should default to t. But we'd better wait
|
|
|
2487 until we see that it works out. */
|
|
|
2488 DEFVAR_LISP ("print-gensym", &Vprint_gensym /*
|
|
|
2489 If non-nil, then uninterned symbols will be printed specially.
|
|
|
2490 Uninterned symbols are those which are not present in `obarray', that is,
|
|
|
2491 those which were made with `make-symbol' or by calling `intern' with a
|
|
|
2492 second argument.
|
|
|
2493
|
|
|
2494 When print-gensym is true, such symbols will be preceded by "#:",
|
|
|
2495 which causes the reader to create a new symbol instead of interning
|
|
|
2496 and returning an existing one. Beware: the #: syntax creates a new
|
|
|
2497 symbol each time it is seen, so if you print an object which contains
|
|
|
2498 two pointers to the same uninterned symbol, `read' will not duplicate
|
|
|
2499 that structure.
|
|
|
2500
|
|
|
2501 If the value of `print-gensym' is a cons cell, then in addition
|
|
|
2502 refrain from clearing `print-gensym-alist' on entry to and exit from
|
|
|
2503 printing functions, so that the use of #...# and #...= can carry over
|
|
|
2504 for several separately printed objects.
|
|
|
2505 */ );
|
|
|
2506 Vprint_gensym = Qnil;
|
|
|
2507
|
|
|
2508 DEFVAR_LISP ("print-gensym-alist", &Vprint_gensym_alist /*
|
|
|
2509 Association list of elements (GENSYM . N) to guide use of #N# and #N=.
|
|
|
2510 In each element, GENSYM is an uninterned symbol that has been associated
|
|
|
2511 with #N= for the specified value of N.
|
|
|
2512 */ );
|
|
|
2513 Vprint_gensym_alist = Qnil;
|
|
|
2514
|
|
|
2515 DEFVAR_LISP ("print-message-label", &Vprint_message_label /*
|
|
|
2516 Label for minibuffer messages created with `print'. This should
|
|
|
2517 generally be bound with `let' rather than set. (See `display-message'.)
|
|
|
2518 */ );
|
|
|
2519 Vprint_message_label = Qprint;
|
|
1957
|
2520
|
|
|
2521 debug_prin1_bindings =
|
|
|
2522 make_opaque (OPAQUE_UNINIT, sizeof (struct debug_bindings));
|
|
|
2523 staticpro (&debug_prin1_bindings);
|
|
|
2524
|
|
|
2525 alternate_do_size = 5000;
|
|
|
2526 alternate_do_string = xnew_array(char, 5000);
|
|
428
|
2527 }
|
