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0
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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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3 Copyright (C) 1995, 1996 Ben Wing.
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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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26 /* Seriously hacked on by Ben Wing for Mule. */
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27
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28 #include <config.h>
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29 #include "lisp.h"
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30
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31 #include "backtrace.h"
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32 #include "buffer.h"
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33 #include "bytecode.h"
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34 #include "console-tty.h"
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35 #include "console-stream.h"
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36 #include "extents.h"
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37 #include "frame.h"
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38 #include "insdel.h"
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39 #include "lstream.h"
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272
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40 #include "sysfile.h"
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0
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41
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272
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42 #include <float.h>
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43 /* Define if not in float.h */
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44 #ifndef DBL_DIG
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45 #define DBL_DIG 16
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46 #endif
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47
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0
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48 Lisp_Object Vstandard_output, Qstandard_output;
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49
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50 /* The subroutine object for external-debugging-output is kept here
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51 for the convenience of the debugger. */
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52 Lisp_Object Qexternal_debugging_output;
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53 Lisp_Object Qalternate_debugging_output;
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173
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54
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0
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55 /* Avoid actual stack overflow in print. */
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56 static int print_depth;
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57
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177
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58 /* Detect most circularities to print finite output. */
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59 #define PRINT_CIRCLE 200
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60 Lisp_Object being_printed[PRINT_CIRCLE];
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61
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0
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62 /* Maximum length of list or vector to print in full; noninteger means
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63 effectively infinity */
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64
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65 Lisp_Object Vprint_length;
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66 Lisp_Object Qprint_length;
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67
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68 /* Maximum length of string to print in full; noninteger means
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69 effectively infinity */
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70
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71 Lisp_Object Vprint_string_length;
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72 Lisp_Object Qprint_string_length;
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73
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74 /* Maximum depth of list to print in full; noninteger means
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75 effectively infinity. */
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76
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77 Lisp_Object Vprint_level;
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78
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79 /* Label to use when making echo-area messages. */
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80
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81 Lisp_Object Vprint_message_label;
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82
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83 /* Nonzero means print newlines in strings as \n. */
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84
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85 int print_escape_newlines;
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86 int print_readably;
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245
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87
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88 /* Non-nil means print #: before uninterned symbols.
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89 Neither t nor nil means so that and don't clear Vprint_gensym_alist
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90 on entry to and exit from print functions. */
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91 Lisp_Object Vprint_gensym;
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92 Lisp_Object Vprint_gensym_alist;
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0
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93
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94 Lisp_Object Qprint_escape_newlines;
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95 Lisp_Object Qprint_readably;
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96
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171
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97 Lisp_Object Qdisplay_error;
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98 Lisp_Object Qprint_message_label;
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99
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0
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100 /* Force immediate output of all printed data. Used for debugging. */
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101 int print_unbuffered;
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102
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103 FILE *termscript; /* Stdio stream being used for copy of all output. */
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104
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105
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106
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107 int stdout_needs_newline;
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108
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109 /* Write a string (in internal format) to stdio stream STREAM. */
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173
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110
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0
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111 void
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112 write_string_to_stdio_stream (FILE *stream, struct console *con,
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113 CONST Bufbyte *str,
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114 Bytecount offset, Bytecount len,
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115 enum external_data_format fmt)
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116 {
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117 int extlen;
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118 CONST Extbyte *extptr;
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119
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120 GET_CHARPTR_EXT_DATA_ALLOCA (str + offset, len, fmt, extptr, extlen);
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121 if (stream)
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282
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122 {
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123 fwrite (extptr, 1, extlen, stream);
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124 #ifdef WINDOWSNT
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125 /* Q122442 says that pipes are "treated as files, not as
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126 devices", and that this is a feature. Before I found that
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127 article, I thought it was a bug. Thanks MS, I feel much
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128 better now. - kkm */
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129 if (stream == stdout || stream == stderr)
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130 fflush (stream);
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131 #endif
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132 }
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0
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133 else
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134 {
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135 assert (CONSOLE_TTY_P (con));
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136 Lstream_write (XLSTREAM (CONSOLE_TTY_DATA (con)->outstream),
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137 extptr, extlen);
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138 }
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139 if (stream == stdout || stream == stderr ||
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140 (!stream && CONSOLE_TTY_DATA (con)->is_stdio))
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141 {
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142 if (termscript)
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143 {
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144 fwrite (extptr, 1, extlen, termscript);
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145 fflush (termscript);
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146 }
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147 stdout_needs_newline = (extptr[extlen - 1] != '\n');
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148 }
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149 }
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150
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151 /* Write a string to the output location specified in FUNCTION.
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152 Arguments NONRELOC, RELOC, OFFSET, and LEN are as in
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153 buffer_insert_string_1() in insdel.c. */
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154
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155 static void
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156 output_string (Lisp_Object function, CONST Bufbyte *nonreloc,
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157 Lisp_Object reloc, Bytecount offset, Bytecount len)
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158 {
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159 /* This function can GC */
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278
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160 Charcount cclen;
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0
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161 /* We change the value of nonreloc (fetching it from reloc as
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162 necessary), but we don't want to pass this changed value on to
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163 other functions that take both a nonreloc and a reloc, or things
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164 may get confused and an assertion failure in
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165 fixup_internal_substring() may get triggered. */
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166 CONST Bufbyte *newnonreloc = nonreloc;
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167 struct gcpro gcpro1, gcpro2;
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168
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169 /* Emacs won't print whilst GCing, but an external debugger might */
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170 if (gc_in_progress) return;
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171
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172 /* Perhaps not necessary but probably safer. */
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173 GCPRO2 (function, reloc);
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174
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175 fixup_internal_substring (newnonreloc, reloc, offset, &len);
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176
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177 if (STRINGP (reloc))
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16
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178 newnonreloc = XSTRING_DATA (reloc);
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0
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179
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180 cclen = bytecount_to_charcount (newnonreloc + offset, len);
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181
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182 if (LSTREAMP (function))
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183 {
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184 if (STRINGP (reloc))
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185 {
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276
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186 /* Protect against Lstream_write() causing a GC and
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187 relocating the string. For small strings, we do it by
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188 alloc'ing the string and using a copy; for large strings,
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278
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189 we inhibit GC. */
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276
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190 if (len < 65536)
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191 {
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192 Bufbyte *copied = alloca_array (Bufbyte, len);
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193 memcpy (copied, newnonreloc + offset, len);
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194 Lstream_write (XLSTREAM (function), copied, len);
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195 }
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196 else
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197 {
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198 int speccount = specpdl_depth ();
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199 record_unwind_protect (restore_gc_inhibit,
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200 make_int (gc_currently_forbidden));
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201 gc_currently_forbidden = 1;
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202 Lstream_write (XLSTREAM (function), newnonreloc + offset, len);
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203 unbind_to (speccount, Qnil);
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204 }
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0
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205 }
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206 else
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207 Lstream_write (XLSTREAM (function), newnonreloc + offset, len);
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208
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209 if (print_unbuffered)
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210 Lstream_flush (XLSTREAM (function));
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211 }
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212 else if (BUFFERP (function))
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213 {
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214 CHECK_LIVE_BUFFER (function);
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215 buffer_insert_string (XBUFFER (function), nonreloc, reloc, offset, len);
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216 }
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217 else if (MARKERP (function))
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218 {
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278
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219 /* marker_position() will err if marker doesn't point anywhere. */
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0
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220 Bufpos spoint = marker_position (function);
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221
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278
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222 buffer_insert_string_1 (XMARKER (function)->buffer,
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0
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223 spoint, nonreloc, reloc, offset, len,
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224 0);
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225 Fset_marker (function, make_int (spoint + cclen),
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226 Fmarker_buffer (function));
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227 }
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228 else if (FRAMEP (function))
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229 {
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278
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230 /* This gets used by functions not invoking print_prepare(),
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280
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231 such as Fwrite_char, Fterpri, etc.. */
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0
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232 struct frame *f = XFRAME (function);
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278
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233 CHECK_LIVE_FRAME (function);
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234
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235 if (!EQ (Vprint_message_label, echo_area_status (f)))
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236 clear_echo_area_from_print (f, Qnil, 1);
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237 echo_area_append (f, nonreloc, reloc, offset, len, Vprint_message_label);
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238 }
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239 else if (EQ (function, Qt) || EQ (function, Qnil))
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240 {
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241 write_string_to_stdio_stream (stdout, 0, newnonreloc, offset, len,
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16
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242 FORMAT_TERMINAL);
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0
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243 }
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244 else
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245 {
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278
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246 Charcount ccoff = bytecount_to_charcount (newnonreloc, offset);
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0
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247 Charcount iii;
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248
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249 for (iii = ccoff; iii < cclen + ccoff; iii++)
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250 {
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251 call1 (function,
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252 make_char (charptr_emchar_n (newnonreloc, iii)));
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253 if (STRINGP (reloc))
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16
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254 newnonreloc = XSTRING_DATA (reloc);
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0
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255 }
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256 }
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257
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258 UNGCPRO;
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259 }
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278
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260
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261 #define RESET_PRINT_GENSYM do { \
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262 if (!CONSP (Vprint_gensym)) \
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263 Vprint_gensym_alist = Qnil; \
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264 } while (0)
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0
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265
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266 static Lisp_Object
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267 canonicalize_printcharfun (Lisp_Object printcharfun)
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268 {
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269 if (NILP (printcharfun))
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270 printcharfun = Vstandard_output;
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271
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272 if (EQ (printcharfun, Qt) || NILP (printcharfun))
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278
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273 printcharfun = Fselected_frame (Qnil); /* print to minibuffer */
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274
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173
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275 return printcharfun;
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0
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276 }
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277
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278 static Lisp_Object
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278
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279 print_prepare (Lisp_Object printcharfun, Lisp_Object *frame_kludge)
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0
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280 {
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281 /* Emacs won't print whilst GCing, but an external debugger might */
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282 if (gc_in_progress)
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173
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283 return Qnil;
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0
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284
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278
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285 RESET_PRINT_GENSYM;
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286
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0
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287 printcharfun = canonicalize_printcharfun (printcharfun);
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278
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288
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289 /* Here we could safely return the canonicalized PRINTCHARFUN.
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290 However, if PRINTCHARFUN is a frame, printing of complex
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291 structures becomes very expensive, because `append-message'
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292 (called by echo_area_append) gets called as many times as
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293 output_string() is called (and that's a *lot*). append-message
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294 tries to keep top of the message-stack in sync with the contents
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295 of " *Echo Area" buffer, consing a new string for each component
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296 of the printed structure. For instance, if you print (a a),
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297 append-message will cons up the following strings:
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298
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299 "("
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300 "(a"
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301 "(a "
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302 "(a a"
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303 "(a a)"
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304
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305 and will use only the last one. With larger objects, this turns
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306 into an O(n^2) consing frenzy that locks up XEmacs in incessant
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307 garbage collection.
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308
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309 We prevent this by creating a resizing_buffer stream and letting
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310 the printer write into it. print_finish() will notice this
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311 stream, and invoke echo_area_append() with the stream's buffer,
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312 only once. */
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313 if (FRAMEP (printcharfun))
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314 {
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315 CHECK_LIVE_FRAME (printcharfun);
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316 *frame_kludge = printcharfun;
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317 printcharfun = make_resizing_buffer_output_stream ();
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318 }
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173
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319
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276
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320 return printcharfun;
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0
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321 }
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322
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323 static void
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278
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324 print_finish (Lisp_Object stream, Lisp_Object frame_kludge)
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0
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325 {
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326 /* Emacs won't print whilst GCing, but an external debugger might */
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327 if (gc_in_progress)
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328 return;
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329
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278
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330 RESET_PRINT_GENSYM;
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331
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332 /* See the comment in print_prepare(). */
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333 if (FRAMEP (frame_kludge))
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334 {
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335 struct frame *f = XFRAME (frame_kludge);
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336 Lstream *str = XLSTREAM (stream);
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337 CHECK_LIVE_FRAME (frame_kludge);
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338
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339 Lstream_flush (str);
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340 if (!EQ (Vprint_message_label, echo_area_status (f)))
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341 clear_echo_area_from_print (f, Qnil, 1);
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342 echo_area_append (f, resizing_buffer_stream_ptr (str),
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343 Qnil, 0, Lstream_byte_count (str),
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344 Vprint_message_label);
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345 Lstream_delete (str);
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346 }
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0
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347 }
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280
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348
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349 /* Used for printing a single-byte character (*not* any Emchar). */
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278
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350 #define write_char_internal(string_of_length_1, stream) \
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280
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351 output_string (stream, (CONST Bufbyte *) (string_of_length_1), \
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278
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352 Qnil, 0, 1)
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0
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353
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280
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354 /* NOTE: Do not call this with the data of a Lisp_String, as
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355 printcharfun might cause a GC, which might cause the string's data
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356 to be relocated. To princ a Lisp string, use:
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357
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358 print_internal (string, printcharfun, 0);
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359
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360 Also note that STREAM should be the result of
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361 canonicalize_printcharfun() (i.e. Qnil means stdout, not
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362 Vstandard_output, etc.) */
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0
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363 void
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364 write_string_1 (CONST Bufbyte *str, Bytecount size, Lisp_Object stream)
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365 {
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366 /* This function can GC */
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278
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367 #ifdef ERROR_CHECK_BUFPOS
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0
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368 assert (size >= 0);
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278
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369 #endif
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0
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370 output_string (stream, str, Qnil, 0, size);
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371 }
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372
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373 void
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374 write_c_string (CONST char *str, Lisp_Object stream)
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375 {
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376 /* This function can GC */
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377 write_string_1 ((CONST Bufbyte *) str, strlen (str), stream);
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378 }
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379
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380
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20
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381 DEFUN ("write-char", Fwrite_char, 1, 2, 0, /*
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0
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382 Output character CH to stream STREAM.
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383 STREAM defaults to the value of `standard-output' (which see).
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20
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384 */
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385 (ch, stream))
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0
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386 {
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387 /* This function can GC */
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388 Bufbyte str[MAX_EMCHAR_LEN];
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389 Bytecount len;
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390
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391 CHECK_CHAR_COERCE_INT (ch);
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392 len = set_charptr_emchar (str, XCHAR (ch));
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393 output_string (canonicalize_printcharfun (stream), str, Qnil, 0, len);
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394 return ch;
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395 }
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396
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397 void
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398 temp_output_buffer_setup (CONST char *bufname)
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399 {
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400 /* This function can GC */
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|
|
401 struct buffer *old = current_buffer;
|
|
|
402 Lisp_Object buf;
|
|
|
403
|
|
|
404 #ifdef I18N3
|
|
|
405 /* #### This function should accept a Lisp_Object instead of a char *,
|
|
|
406 so that proper translation on the buffer name can occur. */
|
|
|
407 #endif
|
|
|
408
|
|
|
409 Fset_buffer (Fget_buffer_create (build_string (bufname)));
|
|
|
410
|
|
|
411 current_buffer->read_only = Qnil;
|
|
223
|
412 Ferase_buffer (Qnil);
|
|
0
|
413
|
|
|
414 XSETBUFFER (buf, current_buffer);
|
|
|
415 specbind (Qstandard_output, buf);
|
|
|
416
|
|
|
417 set_buffer_internal (old);
|
|
|
418 }
|
|
|
419
|
|
|
420 Lisp_Object
|
|
173
|
421 internal_with_output_to_temp_buffer (CONST char *bufname,
|
|
0
|
422 Lisp_Object (*function) (Lisp_Object arg),
|
|
173
|
423 Lisp_Object arg,
|
|
0
|
424 Lisp_Object same_frame)
|
|
|
425 {
|
|
|
426 int speccount = specpdl_depth ();
|
|
|
427 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
428 Lisp_Object buf = Qnil;
|
|
|
429
|
|
|
430 GCPRO3 (buf, arg, same_frame);
|
|
|
431
|
|
|
432 temp_output_buffer_setup (GETTEXT (bufname));
|
|
|
433 buf = Vstandard_output;
|
|
|
434
|
|
|
435 arg = (*function) (arg);
|
|
|
436
|
|
|
437 temp_output_buffer_show (buf, same_frame);
|
|
|
438 UNGCPRO;
|
|
|
439
|
|
|
440 return unbind_to (speccount, arg);
|
|
|
441 }
|
|
|
442
|
|
20
|
443 DEFUN ("with-output-to-temp-buffer", Fwith_output_to_temp_buffer, 1, UNEVALLED, 0, /*
|
|
0
|
444 Bind `standard-output' to buffer BUFNAME, eval BODY, then show that buffer.
|
|
|
445 The buffer is cleared out initially, and marked as unmodified when done.
|
|
|
446 All output done by BODY is inserted in that buffer by default.
|
|
|
447 The buffer is displayed in another window, but not selected.
|
|
|
448 The value of the last form in BODY is returned.
|
|
|
449 If BODY does not finish normally, the buffer BUFNAME is not displayed.
|
|
|
450
|
|
|
451 If variable `temp-buffer-show-function' is non-nil, call it at the end
|
|
|
452 to get the buffer displayed. It gets one argument, the buffer to display.
|
|
20
|
453 */
|
|
|
454 (args))
|
|
0
|
455 {
|
|
|
456 /* This function can GC */
|
|
|
457 struct gcpro gcpro1;
|
|
|
458 Lisp_Object name;
|
|
|
459 int speccount = specpdl_depth ();
|
|
272
|
460 Lisp_Object val;
|
|
0
|
461
|
|
|
462 #ifdef I18N3
|
|
|
463 /* #### should set the buffer to be translating. See print_internal(). */
|
|
|
464 #endif
|
|
|
465
|
|
|
466 GCPRO1 (args);
|
|
272
|
467 name = Feval (XCAR (args));
|
|
0
|
468 UNGCPRO;
|
|
|
469
|
|
|
470 CHECK_STRING (name);
|
|
16
|
471 temp_output_buffer_setup ((char *) XSTRING_DATA (name));
|
|
0
|
472
|
|
272
|
473 val = Fprogn (XCDR (args));
|
|
0
|
474
|
|
272
|
475 temp_output_buffer_show (Vstandard_output, Qnil);
|
|
0
|
476
|
|
|
477 return unbind_to (speccount, val);
|
|
|
478 }
|
|
|
479
|
|
20
|
480 DEFUN ("terpri", Fterpri, 0, 1, 0, /*
|
|
0
|
481 Output a newline to STREAM.
|
|
|
482 If STREAM is omitted or nil, the value of `standard-output' is used.
|
|
20
|
483 */
|
|
|
484 (stream))
|
|
0
|
485 {
|
|
|
486 /* This function can GC */
|
|
280
|
487 write_char_internal ("\n", canonicalize_printcharfun (stream));
|
|
0
|
488 return Qt;
|
|
|
489 }
|
|
|
490
|
|
20
|
491 DEFUN ("prin1", Fprin1, 1, 2, 0, /*
|
|
0
|
492 Output the printed representation of OBJECT, any Lisp object.
|
|
|
493 Quoting characters are printed when needed to make output that `read'
|
|
|
494 can handle, whenever this is possible.
|
|
|
495 Output stream is STREAM, or value of `standard-output' (which see).
|
|
20
|
496 */
|
|
|
497 (object, stream))
|
|
0
|
498 {
|
|
|
499 /* This function can GC */
|
|
280
|
500 Lisp_Object frame = Qnil;
|
|
|
501 struct gcpro gcpro1, gcpro2;
|
|
|
502 GCPRO2 (object, stream);
|
|
0
|
503
|
|
|
504 print_depth = 0;
|
|
280
|
505 stream = print_prepare (stream, &frame);
|
|
|
506 print_internal (object, stream, 1);
|
|
|
507 print_finish (stream, frame);
|
|
|
508
|
|
0
|
509 UNGCPRO;
|
|
|
510 return object;
|
|
|
511 }
|
|
|
512
|
|
20
|
513 DEFUN ("prin1-to-string", Fprin1_to_string, 1, 2, 0, /*
|
|
0
|
514 Return a string containing the printed representation of OBJECT,
|
|
|
515 any Lisp object. Quoting characters are used when needed to make output
|
|
|
516 that `read' can handle, whenever this is possible, unless the optional
|
|
|
517 second argument NOESCAPE is non-nil.
|
|
20
|
518 */
|
|
|
519 (object, noescape))
|
|
0
|
520 {
|
|
|
521 /* This function can GC */
|
|
280
|
522 Lisp_Object result = Qnil;
|
|
|
523 Lisp_Object stream = make_resizing_buffer_output_stream ();
|
|
|
524 Lstream *str = XLSTREAM (stream);
|
|
|
525 /* gcpro OBJECT in case a caller forgot to do so */
|
|
|
526 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
527 GCPRO3 (object, stream, result);
|
|
219
|
528
|
|
0
|
529 print_depth = 0;
|
|
278
|
530 RESET_PRINT_GENSYM;
|
|
|
531 print_internal (object, stream, NILP (noescape));
|
|
|
532 RESET_PRINT_GENSYM;
|
|
|
533 Lstream_flush (str);
|
|
0
|
534 UNGCPRO;
|
|
280
|
535 result = make_string (resizing_buffer_stream_ptr (str),
|
|
|
536 Lstream_byte_count (str));
|
|
|
537 Lstream_delete (str);
|
|
|
538 return result;
|
|
0
|
539 }
|
|
|
540
|
|
20
|
541 DEFUN ("princ", Fprinc, 1, 2, 0, /*
|
|
0
|
542 Output the printed representation of OBJECT, any Lisp object.
|
|
|
543 No quoting characters are used; no delimiters are printed around
|
|
|
544 the contents of strings.
|
|
|
545 Output stream is STREAM, or value of standard-output (which see).
|
|
20
|
546 */
|
|
280
|
547 (object, stream))
|
|
0
|
548 {
|
|
|
549 /* This function can GC */
|
|
280
|
550 Lisp_Object frame = Qnil;
|
|
|
551 struct gcpro gcpro1, gcpro2;
|
|
0
|
552
|
|
280
|
553 GCPRO2 (object, stream);
|
|
|
554 stream = print_prepare (stream, &frame);
|
|
0
|
555 print_depth = 0;
|
|
280
|
556 print_internal (object, stream, 0);
|
|
|
557 print_finish (stream, frame);
|
|
0
|
558 UNGCPRO;
|
|
280
|
559 return object;
|
|
0
|
560 }
|
|
|
561
|
|
20
|
562 DEFUN ("print", Fprint, 1, 2, 0, /*
|
|
0
|
563 Output the printed representation of OBJECT, with newlines around it.
|
|
|
564 Quoting characters are printed when needed to make output that `read'
|
|
|
565 can handle, whenever this is possible.
|
|
|
566 Output stream is STREAM, or value of `standard-output' (which see).
|
|
20
|
567 */
|
|
280
|
568 (object, stream))
|
|
0
|
569 {
|
|
|
570 /* This function can GC */
|
|
280
|
571 Lisp_Object frame = Qnil;
|
|
|
572 struct gcpro gcpro1, gcpro2;
|
|
0
|
573
|
|
280
|
574 GCPRO2 (object, stream);
|
|
|
575 stream = print_prepare (stream, &frame);
|
|
0
|
576 print_depth = 0;
|
|
280
|
577 write_char_internal ("\n", stream);
|
|
|
578 print_internal (object, stream, 1);
|
|
|
579 write_char_internal ("\n", stream);
|
|
|
580 print_finish (stream, frame);
|
|
0
|
581 UNGCPRO;
|
|
280
|
582 return object;
|
|
0
|
583 }
|
|
|
584
|
|
280
|
585 /* Print an error message for the error DATA to STREAM. This is a
|
|
|
586 complete implementation of `display-error', which used to be in
|
|
|
587 Lisp (see prim/cmdloop.el). It was ported to C so it can be used
|
|
|
588 efficiently by Ferror_message_string. Fdisplay_error and
|
|
|
589 Ferror_message_string are trivial wrappers around this function.
|
|
219
|
590
|
|
280
|
591 STREAM should be the result of canonicalize_printcharfun(). */
|
|
171
|
592 static void
|
|
|
593 print_error_message (Lisp_Object error_object, Lisp_Object stream)
|
|
100
|
594 {
|
|
171
|
595 /* This function can GC */
|
|
280
|
596 Lisp_Object type = Fcar_safe (error_object);
|
|
171
|
597 Lisp_Object method = Qnil;
|
|
280
|
598 Lisp_Object tail;
|
|
171
|
599
|
|
280
|
600 /* No need to GCPRO anything under the assumption that ERROR_OBJECT
|
|
|
601 is GCPRO'd. */
|
|
171
|
602
|
|
|
603 if (! (CONSP (error_object) && SYMBOLP (type)
|
|
|
604 && CONSP (Fget (type, Qerror_conditions, Qnil))))
|
|
|
605 goto error_throw;
|
|
100
|
606
|
|
171
|
607 tail = XCDR (error_object);
|
|
|
608 while (!NILP (tail))
|
|
|
609 {
|
|
|
610 if (CONSP (tail))
|
|
|
611 tail = XCDR (tail);
|
|
|
612 else
|
|
|
613 goto error_throw;
|
|
|
614 }
|
|
|
615 tail = Fget (type, Qerror_conditions, Qnil);
|
|
|
616 while (!NILP (tail))
|
|
100
|
617 {
|
|
171
|
618 if (!(CONSP (tail) && SYMBOLP (XCAR (tail))))
|
|
|
619 goto error_throw;
|
|
|
620 else if (!NILP (Fget (XCAR (tail), Qdisplay_error, Qnil)))
|
|
|
621 {
|
|
|
622 method = Fget (XCAR (tail), Qdisplay_error, Qnil);
|
|
|
623 goto error_throw;
|
|
|
624 }
|
|
|
625 else
|
|
|
626 tail = XCDR (tail);
|
|
|
627 }
|
|
|
628 /* Default method */
|
|
|
629 {
|
|
|
630 int first = 1;
|
|
|
631 int speccount = specpdl_depth ();
|
|
|
632
|
|
|
633 specbind (Qprint_message_label, Qerror);
|
|
|
634 tail = Fcdr (error_object);
|
|
|
635 if (EQ (type, Qerror))
|
|
|
636 {
|
|
280
|
637 print_internal (Fcar (tail), stream, 0);
|
|
171
|
638 tail = Fcdr (tail);
|
|
|
639 }
|
|
|
640 else
|
|
|
641 {
|
|
|
642 Lisp_Object errmsg = Fget (type, Qerror_message, Qnil);
|
|
|
643 if (NILP (errmsg))
|
|
280
|
644 print_internal (type, stream, 0);
|
|
171
|
645 else
|
|
280
|
646 print_internal (LISP_GETTEXT (errmsg), stream, 0);
|
|
171
|
647 }
|
|
|
648 while (!NILP (tail))
|
|
|
649 {
|
|
280
|
650 write_c_string (first ? ": " : ", ", stream);
|
|
|
651 print_internal (Fcar (tail), stream, 1);
|
|
171
|
652 tail = Fcdr (tail);
|
|
|
653 first = 0;
|
|
|
654 }
|
|
|
655 unbind_to (speccount, Qnil);
|
|
|
656 return;
|
|
280
|
657 /* not reached */
|
|
171
|
658 }
|
|
|
659
|
|
|
660 error_throw:
|
|
|
661 if (NILP (method))
|
|
|
662 {
|
|
280
|
663 write_c_string (GETTEXT ("Peculiar error "), stream);
|
|
|
664 print_internal (error_object, stream, 1);
|
|
171
|
665 return;
|
|
100
|
666 }
|
|
|
667 else
|
|
|
668 {
|
|
171
|
669 call2 (method, error_object, stream);
|
|
100
|
670 }
|
|
171
|
671 }
|
|
100
|
672
|
|
280
|
673 DEFUN ("error-message-string", Ferror_message_string, 1, 1, 0, /*
|
|
|
674 Convert ERROR-OBJECT to an error message, and return it.
|
|
|
675
|
|
|
676 The format of ERROR-OBJECT should be (ERROR-SYMBOL . DATA). The
|
|
|
677 message is equivalent to the one that would be issued by
|
|
|
678 `display-error' with the same argument.
|
|
|
679 */
|
|
|
680 (error_object))
|
|
|
681 {
|
|
|
682 /* This function can GC */
|
|
|
683 Lisp_Object result = Qnil;
|
|
|
684 Lisp_Object stream = make_resizing_buffer_output_stream ();
|
|
|
685 struct gcpro gcpro1;
|
|
|
686 GCPRO1 (stream);
|
|
|
687
|
|
|
688 print_error_message (error_object, stream);
|
|
|
689 Lstream_flush (XLSTREAM (stream));
|
|
|
690 result = make_string (resizing_buffer_stream_ptr (XLSTREAM (stream)),
|
|
|
691 Lstream_byte_count (XLSTREAM (stream)));
|
|
|
692 Lstream_delete (XLSTREAM (stream));
|
|
|
693
|
|
|
694 UNGCPRO;
|
|
|
695 return result;
|
|
|
696 }
|
|
|
697
|
|
171
|
698 DEFUN ("display-error", Fdisplay_error, 2, 2, 0, /*
|
|
280
|
699 Display ERROR-OBJECT on STREAM in a user-friendly way.
|
|
171
|
700 */
|
|
|
701 (error_object, stream))
|
|
|
702 {
|
|
|
703 /* This function can GC */
|
|
280
|
704 print_error_message (error_object, canonicalize_printcharfun (stream));
|
|
171
|
705 return Qnil;
|
|
|
706 }
|
|
100
|
707
|
|
|
708
|
|
0
|
709 #ifdef LISP_FLOAT_TYPE
|
|
|
710
|
|
|
711 Lisp_Object Vfloat_output_format;
|
|
|
712 Lisp_Object Qfloat_output_format;
|
|
|
713
|
|
|
714 /*
|
|
|
715 * This buffer should be at least as large as the max string size of the
|
|
|
716 * largest float, printed in the biggest notation. This is undoubtably
|
|
|
717 * 20d float_output_format, with the negative of the C-constant "HUGE"
|
|
|
718 * from <math.h>.
|
|
173
|
719 *
|
|
0
|
720 * On the vax the worst case is -1e38 in 20d format which takes 61 bytes.
|
|
173
|
721 *
|
|
0
|
722 * I assume that IEEE-754 format numbers can take 329 bytes for the worst
|
|
|
723 * case of -1e307 in 20d float_output_format. What is one to do (short of
|
|
|
724 * re-writing _doprnt to be more sane)?
|
|
|
725 * -wsr
|
|
|
726 */
|
|
280
|
727 void
|
|
|
728 float_to_string (char *buf, double data)
|
|
0
|
729 {
|
|
|
730 Bufbyte *cp, c;
|
|
|
731 int width;
|
|
173
|
732
|
|
0
|
733 if (NILP (Vfloat_output_format)
|
|
|
734 || !STRINGP (Vfloat_output_format))
|
|
|
735 lose:
|
|
|
736 sprintf (buf, "%.16g", data);
|
|
|
737 else /* oink oink */
|
|
|
738 {
|
|
|
739 /* Check that the spec we have is fully valid.
|
|
|
740 This means not only valid for printf,
|
|
|
741 but meant for floats, and reasonable. */
|
|
16
|
742 cp = XSTRING_DATA (Vfloat_output_format);
|
|
0
|
743
|
|
|
744 if (cp[0] != '%')
|
|
|
745 goto lose;
|
|
|
746 if (cp[1] != '.')
|
|
|
747 goto lose;
|
|
|
748
|
|
|
749 cp += 2;
|
|
|
750 for (width = 0; (c = *cp, isdigit (c)); cp++)
|
|
|
751 {
|
|
|
752 width *= 10;
|
|
|
753 width += c - '0';
|
|
|
754 }
|
|
|
755
|
|
173
|
756 if (*cp != 'e' && *cp != 'f' && *cp != 'g' && *cp != 'E' && *cp != 'G')
|
|
0
|
757 goto lose;
|
|
|
758
|
|
|
759 if (width < (int) (*cp != 'e' && *cp != 'E') || width > DBL_DIG)
|
|
|
760 goto lose;
|
|
|
761
|
|
|
762 if (cp[1] != 0)
|
|
|
763 goto lose;
|
|
|
764
|
|
16
|
765 sprintf (buf, (char *) XSTRING_DATA (Vfloat_output_format),
|
|
0
|
766 data);
|
|
|
767 }
|
|
|
768
|
|
|
769 /* added by jwz: don't allow "1.0" to print as "1"; that destroys
|
|
|
770 the read-equivalence of lisp objects. (* x 1) and (* x 1.0) do
|
|
|
771 not do the same thing, so it's important that the printed
|
|
|
772 representation of that form not be corrupted by the printer.
|
|
|
773 */
|
|
|
774 {
|
|
|
775 Bufbyte *s = (Bufbyte *) buf; /* don't use signed chars here!
|
|
|
776 isdigit() can't hack them! */
|
|
|
777 if (*s == '-') s++;
|
|
|
778 for (; *s; s++)
|
|
|
779 /* if there's a non-digit, then there is a decimal point, or
|
|
|
780 it's in exponential notation, both of which are ok. */
|
|
|
781 if (!isdigit (*s))
|
|
|
782 goto DONE_LABEL;
|
|
|
783 /* otherwise, we need to hack it. */
|
|
|
784 *s++ = '.';
|
|
|
785 *s++ = '0';
|
|
|
786 *s = 0;
|
|
|
787 }
|
|
|
788 DONE_LABEL:
|
|
|
789
|
|
|
790 /* Some machines print "0.4" as ".4". I don't like that. */
|
|
|
791 if (buf [0] == '.' || (buf [0] == '-' && buf [1] == '.'))
|
|
|
792 {
|
|
|
793 int i;
|
|
|
794 for (i = strlen (buf) + 1; i >= 0; i--)
|
|
|
795 buf [i+1] = buf [i];
|
|
|
796 buf [(buf [0] == '-' ? 1 : 0)] = '0';
|
|
|
797 }
|
|
|
798 }
|
|
|
799 #endif /* LISP_FLOAT_TYPE */
|
|
278
|
800
|
|
|
801 /* Print NUMBER to BUFFER. The digits are first written in reverse
|
|
|
802 order (the least significant digit first), and are then reversed.
|
|
|
803 This is equivalent to sprintf(buffer, "%ld", number), only much
|
|
280
|
804 faster.
|
|
|
805
|
|
|
806 BUFFER should accept 24 bytes. This should suffice for the longest
|
|
|
807 numbers on 64-bit machines. */
|
|
278
|
808 void
|
|
|
809 long_to_string (char *buffer, long number)
|
|
|
810 {
|
|
|
811 char *p;
|
|
280
|
812 int i, len;
|
|
278
|
813
|
|
|
814 if (number < 0)
|
|
|
815 {
|
|
|
816 *buffer++ = '-';
|
|
|
817 number = -number;
|
|
|
818 }
|
|
|
819 p = buffer;
|
|
280
|
820
|
|
278
|
821 /* Print the digits to the string. */
|
|
|
822 do
|
|
|
823 {
|
|
|
824 *p++ = number % 10 + '0';
|
|
|
825 number /= 10;
|
|
|
826 }
|
|
|
827 while (number);
|
|
280
|
828
|
|
278
|
829 /* And reverse them. */
|
|
280
|
830 len = p - buffer - 1;
|
|
|
831 for (i = len / 2; i >= 0; i--)
|
|
278
|
832 {
|
|
|
833 char c = buffer[i];
|
|
280
|
834 buffer[i] = buffer[len - i];
|
|
|
835 buffer[len - i] = c;
|
|
278
|
836 }
|
|
280
|
837 buffer[len + 1] = '\0';
|
|
278
|
838 }
|
|
0
|
839
|
|
|
840 static void
|
|
|
841 print_vector_internal (CONST char *start, CONST char *end,
|
|
173
|
842 Lisp_Object obj,
|
|
0
|
843 Lisp_Object printcharfun, int escapeflag)
|
|
|
844 {
|
|
|
845 /* This function can GC */
|
|
|
846 int i;
|
|
173
|
847 int len = XVECTOR_LENGTH (obj);
|
|
0
|
848 int last = len;
|
|
|
849 struct gcpro gcpro1, gcpro2;
|
|
|
850 GCPRO2 (obj, printcharfun);
|
|
|
851
|
|
|
852 if (INTP (Vprint_length))
|
|
|
853 {
|
|
|
854 int max = XINT (Vprint_length);
|
|
|
855 if (max < len) last = max;
|
|
|
856 }
|
|
|
857
|
|
|
858 write_c_string (start, printcharfun);
|
|
|
859 for (i = 0; i < last; i++)
|
|
|
860 {
|
|
173
|
861 Lisp_Object elt = XVECTOR_DATA (obj)[i];
|
|
0
|
862 if (i != 0) write_char_internal (" ", printcharfun);
|
|
|
863 print_internal (elt, printcharfun, escapeflag);
|
|
|
864 }
|
|
|
865 UNGCPRO;
|
|
|
866 if (last != len)
|
|
|
867 write_c_string (" ...", printcharfun);
|
|
|
868 write_c_string (end, printcharfun);
|
|
|
869 }
|
|
|
870
|
|
207
|
871 void
|
|
|
872 print_cons (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
873 {
|
|
|
874 /* This function can GC */
|
|
|
875 struct gcpro gcpro1, gcpro2;
|
|
|
876
|
|
|
877 /* If print_readably is on, print (quote -foo-) as '-foo-
|
|
|
878 (Yeah, this should really be what print-pretty does, but we
|
|
|
879 don't have the rest of a pretty printer, and this actually
|
|
|
880 has non-negligible impact on size/speed of .elc files.)
|
|
|
881 */
|
|
|
882 if (print_readably &&
|
|
|
883 EQ (XCAR (obj), Qquote) &&
|
|
|
884 CONSP (XCDR (obj)) &&
|
|
|
885 NILP (XCDR (XCDR (obj))))
|
|
|
886 {
|
|
|
887 obj = XCAR (XCDR (obj));
|
|
|
888 GCPRO2 (obj, printcharfun);
|
|
280
|
889 write_char_internal ("\'", printcharfun);
|
|
207
|
890 UNGCPRO;
|
|
|
891 print_internal (obj, printcharfun, escapeflag);
|
|
|
892 return;
|
|
|
893 }
|
|
|
894
|
|
|
895 GCPRO2 (obj, printcharfun);
|
|
|
896 write_char_internal ("(", printcharfun);
|
|
280
|
897
|
|
207
|
898 {
|
|
|
899 int i = 0;
|
|
|
900 int max = 0;
|
|
|
901
|
|
|
902 if (INTP (Vprint_length))
|
|
|
903 max = XINT (Vprint_length);
|
|
|
904 while (CONSP (obj))
|
|
|
905 {
|
|
|
906 if (i++)
|
|
|
907 write_char_internal (" ", printcharfun);
|
|
|
908 if (max && i > max)
|
|
|
909 {
|
|
|
910 write_c_string ("...", printcharfun);
|
|
|
911 break;
|
|
|
912 }
|
|
245
|
913 print_internal (XCAR (obj), printcharfun,
|
|
207
|
914 escapeflag);
|
|
245
|
915 obj = XCDR (obj);
|
|
207
|
916 }
|
|
|
917 }
|
|
272
|
918 if (!LISTP (obj))
|
|
207
|
919 {
|
|
|
920 write_c_string (" . ", printcharfun);
|
|
|
921 print_internal (obj, printcharfun, escapeflag);
|
|
|
922 }
|
|
|
923 UNGCPRO;
|
|
|
924 write_char_internal (")", printcharfun);
|
|
|
925 return;
|
|
|
926 }
|
|
|
927
|
|
|
928 void
|
|
|
929 print_vector (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
930 {
|
|
|
931 print_vector_internal ("[", "]", obj, printcharfun, escapeflag);
|
|
|
932 }
|
|
|
933
|
|
|
934 void
|
|
|
935 print_string (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
936 {
|
|
245
|
937 struct Lisp_String *s = XSTRING (obj);
|
|
|
938 /* We distinguish between Bytecounts and Charcounts, to make
|
|
|
939 Vprint_string_length work correctly under Mule. */
|
|
|
940 Charcount size = string_char_length (s);
|
|
|
941 Charcount max = size;
|
|
|
942 Bytecount bcmax = string_length (s);
|
|
207
|
943 struct gcpro gcpro1, gcpro2;
|
|
|
944 GCPRO2 (obj, printcharfun);
|
|
|
945
|
|
|
946 if (INTP (Vprint_string_length) &&
|
|
|
947 XINT (Vprint_string_length) < max)
|
|
245
|
948 {
|
|
|
949 max = XINT (Vprint_string_length);
|
|
|
950 bcmax = charcount_to_bytecount (string_data (s), max);
|
|
|
951 }
|
|
207
|
952 if (max < 0)
|
|
245
|
953 {
|
|
|
954 max = 0;
|
|
|
955 bcmax = 0;
|
|
|
956 }
|
|
207
|
957
|
|
|
958 if (!escapeflag)
|
|
|
959 {
|
|
245
|
960 /* This deals with GC-relocation and Mule. */
|
|
|
961 output_string (printcharfun, 0, obj, 0, bcmax);
|
|
207
|
962 if (max < size)
|
|
|
963 write_c_string (" ...", printcharfun);
|
|
|
964 }
|
|
|
965 else
|
|
|
966 {
|
|
245
|
967 Bytecount i, last = 0;
|
|
207
|
968
|
|
|
969 write_char_internal ("\"", printcharfun);
|
|
245
|
970 for (i = 0; i < bcmax; i++)
|
|
207
|
971 {
|
|
|
972 Bufbyte ch = string_byte (s, i);
|
|
|
973 if (ch == '\"' || ch == '\\'
|
|
|
974 || (ch == '\n' && print_escape_newlines))
|
|
|
975 {
|
|
|
976 if (i > last)
|
|
|
977 {
|
|
|
978 output_string (printcharfun, 0, obj, last,
|
|
|
979 i - last);
|
|
|
980 }
|
|
|
981 if (ch == '\n')
|
|
|
982 {
|
|
|
983 write_c_string ("\\n", printcharfun);
|
|
|
984 }
|
|
|
985 else
|
|
|
986 {
|
|
|
987 write_char_internal ("\\", printcharfun);
|
|
|
988 /* This is correct for Mule because the
|
|
|
989 character is either \ or " */
|
|
278
|
990 write_char_internal (string_data (s) + i, printcharfun);
|
|
207
|
991 }
|
|
|
992 last = i + 1;
|
|
|
993 }
|
|
|
994 }
|
|
245
|
995 if (bcmax > last)
|
|
207
|
996 {
|
|
|
997 output_string (printcharfun, 0, obj, last,
|
|
245
|
998 bcmax - last);
|
|
207
|
999 }
|
|
|
1000 if (max < size)
|
|
|
1001 write_c_string (" ...", printcharfun);
|
|
|
1002 write_char_internal ("\"", printcharfun);
|
|
|
1003 }
|
|
|
1004 UNGCPRO;
|
|
276
|
1005 }
|
|
207
|
1006
|
|
0
|
1007 static void
|
|
|
1008 default_object_printer (Lisp_Object obj, Lisp_Object printcharfun,
|
|
|
1009 int escapeflag)
|
|
|
1010 {
|
|
|
1011 struct lcrecord_header *header =
|
|
|
1012 (struct lcrecord_header *) XPNTR (obj);
|
|
|
1013 char buf[200];
|
|
|
1014
|
|
|
1015 if (print_readably)
|
|
|
1016 error ("printing unreadable object #<%s 0x%x>",
|
|
211
|
1017 LHEADER_IMPLEMENTATION (&header->lheader)->name,
|
|
|
1018 header->uid);
|
|
0
|
1019
|
|
211
|
1020 sprintf (buf, "#<%s 0x%x>",
|
|
|
1021 LHEADER_IMPLEMENTATION (&header->lheader)->name,
|
|
0
|
1022 header->uid);
|
|
|
1023 write_c_string (buf, printcharfun);
|
|
|
1024 }
|
|
|
1025
|
|
|
1026 void
|
|
|
1027 internal_object_printer (Lisp_Object obj, Lisp_Object printcharfun,
|
|
|
1028 int escapeflag)
|
|
|
1029 {
|
|
|
1030 char buf[200];
|
|
278
|
1031 sprintf (buf, "#<INTERNAL OBJECT (XEmacs bug?) (%s) 0x%lx>",
|
|
211
|
1032 XRECORD_LHEADER_IMPLEMENTATION (obj)->name,
|
|
278
|
1033 (unsigned long) XPNTR (obj));
|
|
0
|
1034 write_c_string (buf, printcharfun);
|
|
|
1035 }
|
|
|
1036
|
|
|
1037 void
|
|
|
1038 print_internal (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
1039 {
|
|
|
1040 /* This function can GC */
|
|
|
1041
|
|
|
1042 QUIT;
|
|
|
1043
|
|
|
1044 /* Emacs won't print whilst GCing, but an external debugger might */
|
|
|
1045 if (gc_in_progress) return;
|
|
|
1046
|
|
|
1047 #ifdef I18N3
|
|
|
1048 /* #### Both input and output streams should have a flag associated
|
|
|
1049 with them indicating whether output to that stream, or strings
|
|
|
1050 read from the stream, get translated using Fgettext(). Such a
|
|
|
1051 stream is called a "translating stream". For the minibuffer and
|
|
|
1052 external-debugging-output this is always true on output, and
|
|
|
1053 with-output-to-temp-buffer sets the flag to true for the buffer
|
|
|
1054 it creates. This flag should also be user-settable. Perhaps it
|
|
|
1055 should be split up into two flags, one for input and one for
|
|
|
1056 output. */
|
|
|
1057 #endif
|
|
|
1058
|
|
177
|
1059 /* Detect circularities and truncate them.
|
|
|
1060 No need to offer any alternative--this is better than an error. */
|
|
|
1061 if (CONSP (obj) || VECTORP (obj) || COMPILED_FUNCTIONP (obj))
|
|
|
1062 {
|
|
|
1063 int i;
|
|
|
1064 for (i = 0; i < print_depth; i++)
|
|
|
1065 if (EQ (obj, being_printed[i]))
|
|
|
1066 {
|
|
280
|
1067 char buf[32];
|
|
|
1068 *buf = '#';
|
|
|
1069 long_to_string (buf + 1, i);
|
|
177
|
1070 write_c_string (buf, printcharfun);
|
|
|
1071 return;
|
|
|
1072 }
|
|
|
1073 }
|
|
|
1074
|
|
|
1075 being_printed[print_depth] = obj;
|
|
0
|
1076 print_depth++;
|
|
|
1077
|
|
177
|
1078 if (print_depth > PRINT_CIRCLE)
|
|
0
|
1079 error ("Apparently circular structure being printed");
|
|
|
1080
|
|
|
1081 switch (XTYPE (obj))
|
|
|
1082 {
|
|
207
|
1083 #ifdef USE_MINIMAL_TAGBITS
|
|
|
1084 case Lisp_Type_Int_Even:
|
|
|
1085 case Lisp_Type_Int_Odd:
|
|
|
1086 #else
|
|
185
|
1087 case Lisp_Type_Int:
|
|
207
|
1088 #endif
|
|
0
|
1089 {
|
|
280
|
1090 char buf[24];
|
|
276
|
1091 long_to_string (buf, XINT (obj));
|
|
0
|
1092 write_c_string (buf, printcharfun);
|
|
|
1093 break;
|
|
|
1094 }
|
|
|
1095
|
|
185
|
1096 case Lisp_Type_Char:
|
|
70
|
1097 {
|
|
|
1098 /* God intended that this be #\..., you know. */
|
|
280
|
1099 char buf[16];
|
|
70
|
1100 Emchar ch = XCHAR (obj);
|
|
278
|
1101 char *p = buf;
|
|
|
1102 *p++ = '?';
|
|
70
|
1103 if (ch == '\n')
|
|
278
|
1104 *p++ = '\\', *p++ = 'n';
|
|
70
|
1105 else if (ch == '\r')
|
|
278
|
1106 *p++ = '\\', *p++ = 'r';
|
|
70
|
1107 else if (ch == '\t')
|
|
278
|
1108 *p++ = '\\', *p++ = 't';
|
|
|
1109 else if (ch < 32)
|
|
|
1110 {
|
|
|
1111 *p++ = '\\', *p++ = '^';
|
|
|
1112 *p++ = ch + 64;
|
|
|
1113 if ((ch + 64) == '\\')
|
|
|
1114 *p++ = '\\';
|
|
187
|
1115 }
|
|
278
|
1116 else if (ch == 127)
|
|
|
1117 *p++ = '\\', *p++ = '^', *p++ = '?';
|
|
70
|
1118 else if (ch >= 128 && ch < 160)
|
|
|
1119 {
|
|
278
|
1120 *p++ = '\\', *p++ = '^';
|
|
|
1121 p += set_charptr_emchar ((Bufbyte *)p, ch + 64);
|
|
70
|
1122 }
|
|
|
1123 else if (ch < 127
|
|
|
1124 && !isdigit (ch)
|
|
|
1125 && !isalpha (ch)
|
|
|
1126 && ch != '^') /* must not backslash this or it will
|
|
|
1127 be interpreted as the start of a
|
|
|
1128 control char */
|
|
278
|
1129 *p++ = '\\', *p++ = ch;
|
|
70
|
1130 else
|
|
278
|
1131 p += set_charptr_emchar ((Bufbyte *)p, ch);
|
|
|
1132 output_string (printcharfun, (Bufbyte *)buf, Qnil, 0, p - buf);
|
|
70
|
1133 break;
|
|
|
1134 }
|
|
|
1135
|
|
207
|
1136 #ifndef LRECORD_STRING
|
|
185
|
1137 case Lisp_Type_String:
|
|
0
|
1138 {
|
|
278
|
1139 print_string (obj, printcharfun, escapeflag);
|
|
0
|
1140 break;
|
|
|
1141 }
|
|
207
|
1142 #endif /* ! LRECORD_STRING */
|
|
0
|
1143
|
|
207
|
1144 #ifndef LRECORD_CONS
|
|
185
|
1145 case Lisp_Type_Cons:
|
|
0
|
1146 {
|
|
|
1147 struct gcpro gcpro1, gcpro2;
|
|
|
1148
|
|
|
1149 /* If deeper than spec'd depth, print placeholder. */
|
|
|
1150 if (INTP (Vprint_level)
|
|
|
1151 && print_depth > XINT (Vprint_level))
|
|
|
1152 {
|
|
207
|
1153 GCPRO2 (obj, printcharfun);
|
|
0
|
1154 write_c_string ("...", printcharfun);
|
|
|
1155 UNGCPRO;
|
|
|
1156 break;
|
|
|
1157 }
|
|
|
1158
|
|
207
|
1159 print_cons (obj, printcharfun, escapeflag);
|
|
0
|
1160 break;
|
|
|
1161 }
|
|
207
|
1162 #endif /* ! LRECORD_CONS */
|
|
0
|
1163
|
|
|
1164 #ifndef LRECORD_VECTOR
|
|
185
|
1165 case Lisp_Type_Vector:
|
|
0
|
1166 {
|
|
|
1167 /* If deeper than spec'd depth, print placeholder. */
|
|
|
1168 if (INTP (Vprint_level)
|
|
|
1169 && print_depth > XINT (Vprint_level))
|
|
|
1170 {
|
|
278
|
1171 struct gcpro gcpro1, gcpro2;
|
|
207
|
1172 GCPRO2 (obj, printcharfun);
|
|
0
|
1173 write_c_string ("...", printcharfun);
|
|
207
|
1174 UNGCPRO;
|
|
0
|
1175 break;
|
|
|
1176 }
|
|
|
1177
|
|
|
1178 /* God intended that this be #(...), you know. */
|
|
|
1179 print_vector_internal ("[", "]", obj, printcharfun, escapeflag);
|
|
|
1180 break;
|
|
|
1181 }
|
|
|
1182 #endif /* !LRECORD_VECTOR */
|
|
|
1183
|
|
|
1184 #ifndef LRECORD_SYMBOL
|
|
185
|
1185 case Lisp_Type_Symbol:
|
|
0
|
1186 {
|
|
|
1187 print_symbol (obj, printcharfun, escapeflag);
|
|
|
1188 break;
|
|
|
1189 }
|
|
|
1190 #endif /* !LRECORD_SYMBOL */
|
|
|
1191
|
|
185
|
1192 case Lisp_Type_Record:
|
|
0
|
1193 {
|
|
|
1194 struct lrecord_header *lheader = XRECORD_LHEADER (obj);
|
|
|
1195 struct gcpro gcpro1, gcpro2;
|
|
|
1196
|
|
207
|
1197 #if defined(LRECORD_CONS) || defined(LRECORD_VECTOR)
|
|
|
1198 if (CONSP (obj) || VECTORP(obj))
|
|
|
1199 {
|
|
|
1200 /* If deeper than spec'd depth, print placeholder. */
|
|
|
1201 if (INTP (Vprint_level)
|
|
|
1202 && print_depth > XINT (Vprint_level))
|
|
|
1203 {
|
|
|
1204 GCPRO2 (obj, printcharfun);
|
|
|
1205 write_c_string ("...", printcharfun);
|
|
|
1206 UNGCPRO;
|
|
|
1207 break;
|
|
|
1208 }
|
|
|
1209 }
|
|
|
1210 #endif
|
|
|
1211
|
|
0
|
1212 GCPRO2 (obj, printcharfun);
|
|
211
|
1213 if (LHEADER_IMPLEMENTATION (lheader)->printer)
|
|
|
1214 ((LHEADER_IMPLEMENTATION (lheader)->printer)
|
|
0
|
1215 (obj, printcharfun, escapeflag));
|
|
|
1216 else
|
|
|
1217 default_object_printer (obj, printcharfun, escapeflag);
|
|
|
1218 UNGCPRO;
|
|
|
1219 break;
|
|
|
1220 }
|
|
|
1221
|
|
|
1222 default:
|
|
|
1223 {
|
|
284
|
1224 #ifdef ERROR_CHECK_TYPECHECK
|
|
|
1225 abort ();
|
|
|
1226 #else /* not ERROR_CHECK_TYPECHECK */
|
|
280
|
1227 char buf[128];
|
|
284
|
1228 /* We're in trouble if this happens! */
|
|
0
|
1229 if (print_readably)
|
|
|
1230 error ("printing illegal data type #o%03o",
|
|
|
1231 (int) XTYPE (obj));
|
|
|
1232 write_c_string ("#<EMACS BUG: ILLEGAL DATATYPE ",
|
|
|
1233 printcharfun);
|
|
|
1234 sprintf (buf, "(#o%3o)", (int) XTYPE (obj));
|
|
|
1235 write_c_string (buf, printcharfun);
|
|
|
1236 write_c_string
|
|
|
1237 (" Save your buffers immediately and please report this bug>",
|
|
|
1238 printcharfun);
|
|
284
|
1239 #endif /* not ERROR_CHECK_TYPECHECK */
|
|
0
|
1240 break;
|
|
|
1241 }
|
|
|
1242 }
|
|
|
1243
|
|
|
1244 print_depth--;
|
|
|
1245 }
|
|
|
1246
|
|
|
1247 static void
|
|
|
1248 print_compiled_function_internal (CONST char *start, CONST char *end,
|
|
173
|
1249 Lisp_Object obj,
|
|
0
|
1250 Lisp_Object printcharfun, int escapeflag)
|
|
|
1251 {
|
|
|
1252 /* This function can GC */
|
|
|
1253 struct Lisp_Compiled_Function *b =
|
|
|
1254 XCOMPILED_FUNCTION (obj); /* GC doesn't relocate */
|
|
|
1255 int docp = b->flags.documentationp;
|
|
|
1256 int intp = b->flags.interactivep;
|
|
|
1257 struct gcpro gcpro1, gcpro2;
|
|
|
1258 char buf[100];
|
|
|
1259 GCPRO2 (obj, printcharfun);
|
|
|
1260
|
|
|
1261 write_c_string (start, printcharfun);
|
|
|
1262 #ifdef COMPILED_FUNCTION_ANNOTATION_HACK
|
|
|
1263 if (!print_readably)
|
|
|
1264 {
|
|
|
1265 Lisp_Object ann = compiled_function_annotation (b);
|
|
|
1266 if (!NILP (ann))
|
|
|
1267 {
|
|
|
1268 write_c_string ("(from ", printcharfun);
|
|
|
1269 print_internal (ann, printcharfun, 1);
|
|
|
1270 write_c_string (") ", printcharfun);
|
|
|
1271 }
|
|
|
1272 }
|
|
|
1273 #endif /* COMPILED_FUNCTION_ANNOTATION_HACK */
|
|
|
1274 /* COMPILED_ARGLIST = 0 */
|
|
|
1275 print_internal (b->arglist, printcharfun, escapeflag);
|
|
|
1276 /* COMPILED_BYTECODE = 1 */
|
|
|
1277 write_char_internal (" ", printcharfun);
|
|
|
1278 /* we don't really want to see that junk in the bytecode instructions. */
|
|
|
1279 if (STRINGP (b->bytecodes) && !print_readably)
|
|
|
1280 {
|
|
16
|
1281 sprintf (buf, "\"...(%ld)\"", (long) XSTRING_LENGTH (b->bytecodes));
|
|
0
|
1282 write_c_string (buf, printcharfun);
|
|
|
1283 }
|
|
|
1284 else
|
|
|
1285 print_internal (b->bytecodes, printcharfun, escapeflag);
|
|
|
1286 /* COMPILED_CONSTANTS = 2 */
|
|
|
1287 write_char_internal (" ", printcharfun);
|
|
|
1288 print_internal (b->constants, printcharfun, escapeflag);
|
|
|
1289 /* COMPILED_STACK_DEPTH = 3 */
|
|
|
1290 sprintf (buf, " %d", b->maxdepth);
|
|
|
1291 write_c_string (buf, printcharfun);
|
|
|
1292 /* COMPILED_DOC_STRING = 4 */
|
|
|
1293 if (docp || intp)
|
|
|
1294 {
|
|
|
1295 write_char_internal (" ", printcharfun);
|
|
|
1296 print_internal (compiled_function_documentation (b), printcharfun,
|
|
|
1297 escapeflag);
|
|
|
1298 }
|
|
|
1299 /* COMPILED_INTERACTIVE = 5 */
|
|
|
1300 if (intp)
|
|
|
1301 {
|
|
|
1302 write_char_internal (" ", printcharfun);
|
|
|
1303 print_internal (compiled_function_interactive (b), printcharfun,
|
|
|
1304 escapeflag);
|
|
|
1305 }
|
|
|
1306 UNGCPRO;
|
|
|
1307 write_c_string (end, printcharfun);
|
|
|
1308 }
|
|
|
1309
|
|
|
1310 void
|
|
|
1311 print_compiled_function (Lisp_Object obj, Lisp_Object printcharfun,
|
|
|
1312 int escapeflag)
|
|
|
1313 {
|
|
|
1314 /* This function can GC */
|
|
|
1315 print_compiled_function_internal (((print_readably) ? "#[" :
|
|
|
1316 "#<compiled-function "),
|
|
|
1317 ((print_readably) ? "]" : ">"),
|
|
|
1318 obj, printcharfun, escapeflag);
|
|
|
1319 }
|
|
|
1320
|
|
|
1321 #ifdef LISP_FLOAT_TYPE
|
|
|
1322 void
|
|
|
1323 print_float (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
1324 {
|
|
|
1325 char pigbuf[350]; /* see comments in float_to_string */
|
|
|
1326
|
|
|
1327 float_to_string (pigbuf, float_data (XFLOAT (obj)));
|
|
|
1328 write_c_string (pigbuf, printcharfun);
|
|
|
1329 }
|
|
|
1330 #endif /* LISP_FLOAT_TYPE */
|
|
|
1331
|
|
|
1332 void
|
|
|
1333 print_symbol (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
1334 {
|
|
|
1335 /* This function can GC */
|
|
|
1336 /* #### Bug!! (intern "") isn't printed in some distinguished way */
|
|
|
1337 /* #### (the reader also loses on it) */
|
|
278
|
1338 struct Lisp_String *name = symbol_name (XSYMBOL (obj));
|
|
0
|
1339 Bytecount size = string_length (name);
|
|
|
1340 struct gcpro gcpro1, gcpro2;
|
|
|
1341
|
|
|
1342 if (!escapeflag)
|
|
|
1343 {
|
|
|
1344 /* This deals with GC-relocation */
|
|
|
1345 Lisp_Object nameobj;
|
|
|
1346 XSETSTRING (nameobj, name);
|
|
|
1347 output_string (printcharfun, 0, nameobj, 0, size);
|
|
|
1348 return;
|
|
|
1349 }
|
|
|
1350 GCPRO2 (obj, printcharfun);
|
|
|
1351
|
|
245
|
1352 /* If we print an uninterned symbol as part of a complex object and
|
|
|
1353 the flag print-gensym is non-nil, prefix it with #n= to read the
|
|
|
1354 object back with the #n# reader syntax later if needed. */
|
|
371
|
1355 if (!NILP (Vprint_gensym) && NILP (XSYMBOL (obj)->obarray))
|
|
0
|
1356 {
|
|
245
|
1357 if (print_depth > 1)
|
|
|
1358 {
|
|
|
1359 Lisp_Object tem = Fassq (obj, Vprint_gensym_alist);
|
|
|
1360 if (CONSP (tem))
|
|
|
1361 {
|
|
|
1362 write_char_internal ("#", printcharfun);
|
|
|
1363 print_internal (XCDR (tem), printcharfun, escapeflag);
|
|
|
1364 write_char_internal ("#", printcharfun);
|
|
|
1365 return;
|
|
|
1366 }
|
|
|
1367 else
|
|
|
1368 {
|
|
|
1369 if (CONSP (Vprint_gensym_alist))
|
|
251
|
1370 {
|
|
|
1371 /* Vprint_gensym_alist is exposed to Lisp, so we
|
|
|
1372 have to be careful. */
|
|
|
1373 CHECK_CONS (XCAR (Vprint_gensym_alist));
|
|
|
1374 CHECK_INT (XCDR (XCAR (Vprint_gensym_alist)));
|
|
|
1375 XSETINT (tem, XINT (XCDR (XCAR (Vprint_gensym_alist))) + 1);
|
|
|
1376 }
|
|
245
|
1377 else
|
|
|
1378 XSETINT (tem, 1);
|
|
|
1379 Vprint_gensym_alist = Fcons (Fcons (obj, tem), Vprint_gensym_alist);
|
|
|
1380
|
|
|
1381 write_char_internal ("#", printcharfun);
|
|
|
1382 print_internal (tem, printcharfun, escapeflag);
|
|
|
1383 write_char_internal ("=", printcharfun);
|
|
|
1384 }
|
|
|
1385 }
|
|
|
1386 write_c_string ("#:", printcharfun);
|
|
0
|
1387 }
|
|
|
1388
|
|
|
1389 /* Does it look like an integer or a float? */
|
|
|
1390 {
|
|
|
1391 Bufbyte *data = string_data (name);
|
|
|
1392 Bytecount confusing = 0;
|
|
|
1393
|
|
|
1394 if (size == 0)
|
|
|
1395 goto not_yet_confused; /* Really confusing */
|
|
|
1396 else if (isdigit (data[0]))
|
|
|
1397 confusing = 0;
|
|
|
1398 else if (size == 1)
|
|
|
1399 goto not_yet_confused;
|
|
|
1400 else if (data[0] == '-' || data[0] == '+')
|
|
|
1401 confusing = 1;
|
|
|
1402 else
|
|
|
1403 goto not_yet_confused;
|
|
|
1404
|
|
|
1405 for (; confusing < size; confusing++)
|
|
173
|
1406 {
|
|
0
|
1407 if (!isdigit (data[confusing]))
|
|
|
1408 {
|
|
|
1409 confusing = 0;
|
|
|
1410 break;
|
|
|
1411 }
|
|
|
1412 }
|
|
|
1413 not_yet_confused:
|
|
|
1414
|
|
|
1415 #ifdef LISP_FLOAT_TYPE
|
|
|
1416 if (!confusing)
|
|
278
|
1417 /* #### Ugh, this is needlessly complex and slow for what we
|
|
|
1418 need here. It might be a good idea to copy equivalent code
|
|
|
1419 from FSF. --hniksic */
|
|
0
|
1420 confusing = isfloat_string ((char *) data);
|
|
|
1421 #endif
|
|
|
1422 if (confusing)
|
|
|
1423 write_char_internal ("\\", printcharfun);
|
|
|
1424 }
|
|
|
1425
|
|
|
1426 {
|
|
|
1427 Lisp_Object nameobj;
|
|
|
1428 Bytecount i;
|
|
|
1429 Bytecount last = 0;
|
|
173
|
1430
|
|
0
|
1431 XSETSTRING (nameobj, name);
|
|
|
1432 for (i = 0; i < size; i++)
|
|
|
1433 {
|
|
|
1434 Bufbyte c = string_byte (name, i);
|
|
|
1435
|
|
|
1436 if (c == '\"' || c == '\\' || c == '\'' || c == ';' || c == '#' ||
|
|
|
1437 c == '(' || c == ')' || c == ',' || c =='.' || c == '`' ||
|
|
|
1438 c == '[' || c == ']' || c == '?' || c <= 040)
|
|
|
1439 {
|
|
|
1440 if (i > last)
|
|
|
1441 {
|
|
|
1442 output_string (printcharfun, 0, nameobj, last,
|
|
|
1443 i - last);
|
|
|
1444 }
|
|
|
1445 write_char_internal ("\\", printcharfun);
|
|
|
1446 last = i;
|
|
|
1447 }
|
|
|
1448 }
|
|
|
1449 output_string (printcharfun, 0, nameobj, last, size - last);
|
|
|
1450 }
|
|
|
1451 UNGCPRO;
|
|
|
1452 }
|
|
|
1453
|
|
278
|
1454 /* #ifdef DEBUG_XEMACS */
|
|
280
|
1455
|
|
|
1456 /* I don't like seeing `Note: Strange doc (not fboundp) for function
|
|
|
1457 alternate-debugging-output @ 429542' -slb */
|
|
|
1458 /* #### Eek! Any clue how to get rid of it? In fact, how about
|
|
|
1459 getting rid of this function altogether? Does anything actually
|
|
|
1460 *use* it? --hniksic */
|
|
|
1461
|
|
0
|
1462 int alternate_do_pointer;
|
|
|
1463 char alternate_do_string[5000];
|
|
|
1464
|
|
20
|
1465 DEFUN ("alternate-debugging-output", Falternate_debugging_output, 1, 1, 0, /*
|
|
0
|
1466 Append CHARACTER to the array `alternate_do_string'.
|
|
|
1467 This can be used in place of `external-debugging-output' as a function
|
|
|
1468 to be passed to `print'. Before calling `print', set `alternate_do_pointer'
|
|
|
1469 to 0.
|
|
20
|
1470 */
|
|
|
1471 (character))
|
|
0
|
1472 {
|
|
|
1473 Bufbyte str[MAX_EMCHAR_LEN];
|
|
|
1474 Bytecount len;
|
|
|
1475 int extlen;
|
|
|
1476 CONST Extbyte *extptr;
|
|
|
1477
|
|
|
1478 CHECK_CHAR_COERCE_INT (character);
|
|
|
1479 len = set_charptr_emchar (str, XCHAR (character));
|
|
16
|
1480 GET_CHARPTR_EXT_DATA_ALLOCA (str, len, FORMAT_TERMINAL, extptr, extlen);
|
|
0
|
1481 memcpy (alternate_do_string + alternate_do_pointer, extptr, extlen);
|
|
|
1482 alternate_do_pointer += extlen;
|
|
|
1483 alternate_do_string[alternate_do_pointer] = 0;
|
|
|
1484 return character;
|
|
|
1485 }
|
|
280
|
1486 /* #endif / * DEBUG_XEMACS */
|
|
0
|
1487
|
|
20
|
1488 DEFUN ("external-debugging-output", Fexternal_debugging_output, 1, 3, 0, /*
|
|
0
|
1489 Write CHAR-OR-STRING to stderr or stdout.
|
|
|
1490 If optional arg STDOUT-P is non-nil, write to stdout; otherwise, write
|
|
|
1491 to stderr. You can use this function to write directly to the terminal.
|
|
|
1492 This function can be used as the STREAM argument of Fprint() or the like.
|
|
|
1493
|
|
|
1494 If you have opened a termscript file (using `open-termscript'), then
|
|
|
1495 the output also will be logged to this file.
|
|
20
|
1496 */
|
|
|
1497 (char_or_string, stdout_p, device))
|
|
0
|
1498 {
|
|
|
1499 FILE *file = 0;
|
|
|
1500 struct console *con = 0;
|
|
|
1501
|
|
|
1502 if (NILP (device))
|
|
|
1503 {
|
|
|
1504 if (!NILP (stdout_p))
|
|
|
1505 file = stdout;
|
|
|
1506 else
|
|
|
1507 file = stderr;
|
|
|
1508 }
|
|
|
1509 else
|
|
|
1510 {
|
|
|
1511 CHECK_LIVE_DEVICE (device);
|
|
|
1512 if (!DEVICE_TTY_P (XDEVICE (device)) &&
|
|
|
1513 !DEVICE_STREAM_P (XDEVICE (device)))
|
|
|
1514 signal_simple_error ("Must be tty or stream device", device);
|
|
|
1515 con = XCONSOLE (DEVICE_CONSOLE (XDEVICE (device)));
|
|
|
1516 if (DEVICE_TTY_P (XDEVICE (device)))
|
|
|
1517 file = 0;
|
|
|
1518 else if (!NILP (stdout_p))
|
|
|
1519 file = CONSOLE_STREAM_DATA (con)->outfd;
|
|
|
1520 else
|
|
|
1521 file = CONSOLE_STREAM_DATA (con)->errfd;
|
|
|
1522 }
|
|
|
1523
|
|
|
1524 if (STRINGP (char_or_string))
|
|
|
1525 write_string_to_stdio_stream (file, con,
|
|
16
|
1526 XSTRING_DATA (char_or_string),
|
|
|
1527 0, XSTRING_LENGTH (char_or_string),
|
|
|
1528 FORMAT_TERMINAL);
|
|
0
|
1529 else
|
|
|
1530 {
|
|
|
1531 Bufbyte str[MAX_EMCHAR_LEN];
|
|
|
1532 Bytecount len;
|
|
|
1533
|
|
|
1534 CHECK_CHAR_COERCE_INT (char_or_string);
|
|
|
1535 len = set_charptr_emchar (str, XCHAR (char_or_string));
|
|
16
|
1536 write_string_to_stdio_stream (file, con, str, 0, len, FORMAT_TERMINAL);
|
|
0
|
1537 }
|
|
|
1538
|
|
|
1539 return char_or_string;
|
|
|
1540 }
|
|
|
1541
|
|
20
|
1542 DEFUN ("open-termscript", Fopen_termscript, 1, 1, "FOpen termscript file: ", /*
|
|
0
|
1543 Start writing all terminal output to FILE as well as the terminal.
|
|
|
1544 FILE = nil means just close any termscript file currently open.
|
|
20
|
1545 */
|
|
|
1546 (file))
|
|
0
|
1547 {
|
|
|
1548 /* This function can GC */
|
|
|
1549 if (termscript != 0)
|
|
|
1550 fclose (termscript);
|
|
|
1551 termscript = 0;
|
|
|
1552
|
|
|
1553 if (! NILP (file))
|
|
|
1554 {
|
|
|
1555 file = Fexpand_file_name (file, Qnil);
|
|
16
|
1556 termscript = fopen ((char *) XSTRING_DATA (file), "w");
|
|
183
|
1557 if (termscript == NULL)
|
|
278
|
1558 report_file_error ("Opening termscript", list1 (file));
|
|
0
|
1559 }
|
|
|
1560 return Qnil;
|
|
|
1561 }
|
|
|
1562
|
|
|
1563 #if 1
|
|
|
1564 /* Debugging kludge -- unbuffered */
|
|
|
1565 static int debug_print_length = 50;
|
|
|
1566 static int debug_print_level = 15;
|
|
|
1567 Lisp_Object debug_temp;
|
|
272
|
1568
|
|
|
1569 static void
|
|
0
|
1570 debug_print_no_newline (Lisp_Object debug_print_obj)
|
|
|
1571 {
|
|
|
1572 /* This function can GC */
|
|
|
1573 int old_print_readably = print_readably;
|
|
|
1574 int old_print_depth = print_depth;
|
|
|
1575 Lisp_Object old_print_length = Vprint_length;
|
|
|
1576 Lisp_Object old_print_level = Vprint_level;
|
|
|
1577 Lisp_Object old_inhibit_quit = Vinhibit_quit;
|
|
|
1578 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
1579 GCPRO3 (old_print_level, old_print_length, old_inhibit_quit);
|
|
|
1580
|
|
|
1581 if (gc_in_progress)
|
|
|
1582 stderr_out ("** gc-in-progress! Bad idea to print anything! **\n");
|
|
|
1583
|
|
|
1584 print_depth = 0;
|
|
|
1585 print_readably = 0;
|
|
|
1586 print_unbuffered++;
|
|
|
1587 /* Could use unwind-protect, but why bother? */
|
|
|
1588 if (debug_print_length > 0)
|
|
|
1589 Vprint_length = make_int (debug_print_length);
|
|
|
1590 if (debug_print_level > 0)
|
|
|
1591 Vprint_level = make_int (debug_print_level);
|
|
|
1592 print_internal (debug_print_obj, Qexternal_debugging_output, 1);
|
|
|
1593 Vinhibit_quit = old_inhibit_quit;
|
|
|
1594 Vprint_level = old_print_level;
|
|
|
1595 Vprint_length = old_print_length;
|
|
|
1596 print_depth = old_print_depth;
|
|
|
1597 print_readably = old_print_readably;
|
|
|
1598 print_unbuffered--;
|
|
|
1599 UNGCPRO;
|
|
|
1600 }
|
|
|
1601
|
|
|
1602 void
|
|
|
1603 debug_print (Lisp_Object debug_print_obj)
|
|
|
1604 {
|
|
|
1605 debug_print_no_newline (debug_print_obj);
|
|
272
|
1606 stderr_out ("\n");
|
|
0
|
1607 fflush (stderr);
|
|
|
1608 }
|
|
|
1609
|
|
|
1610 /* Debugging kludge -- unbuffered */
|
|
272
|
1611 /* This function provided for the benefit of the debugger. */
|
|
|
1612 void debug_backtrace (void);
|
|
0
|
1613 void
|
|
|
1614 debug_backtrace (void)
|
|
|
1615 {
|
|
|
1616 /* This function can GC */
|
|
|
1617 int old_print_readably = print_readably;
|
|
|
1618 int old_print_depth = print_depth;
|
|
|
1619 Lisp_Object old_print_length = Vprint_length;
|
|
|
1620 Lisp_Object old_print_level = Vprint_level;
|
|
|
1621 Lisp_Object old_inhibit_quit = Vinhibit_quit;
|
|
|
1622 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
1623 GCPRO3 (old_print_level, old_print_length, old_inhibit_quit);
|
|
|
1624
|
|
|
1625 if (gc_in_progress)
|
|
|
1626 stderr_out ("** gc-in-progress! Bad idea to print anything! **\n");
|
|
|
1627
|
|
|
1628 print_depth = 0;
|
|
|
1629 print_readably = 0;
|
|
|
1630 print_unbuffered++;
|
|
|
1631 /* Could use unwind-protect, but why bother? */
|
|
|
1632 if (debug_print_length > 0)
|
|
|
1633 Vprint_length = make_int (debug_print_length);
|
|
|
1634 if (debug_print_level > 0)
|
|
|
1635 Vprint_level = make_int (debug_print_level);
|
|
|
1636 Fbacktrace (Qexternal_debugging_output, Qt);
|
|
|
1637 stderr_out ("\n");
|
|
|
1638 fflush (stderr);
|
|
|
1639 Vinhibit_quit = old_inhibit_quit;
|
|
|
1640 Vprint_level = old_print_level;
|
|
|
1641 Vprint_length = old_print_length;
|
|
|
1642 print_depth = old_print_depth;
|
|
|
1643 print_readably = old_print_readably;
|
|
|
1644 print_unbuffered--;
|
|
|
1645 UNGCPRO;
|
|
|
1646 }
|
|
|
1647
|
|
|
1648 void
|
|
|
1649 debug_short_backtrace (int length)
|
|
|
1650 {
|
|
|
1651 int first = 1;
|
|
|
1652 struct backtrace *bt = backtrace_list;
|
|
|
1653 stderr_out (" [");
|
|
|
1654 fflush (stderr);
|
|
|
1655 while (length > 0 && bt)
|
|
|
1656 {
|
|
|
1657 if (!first)
|
|
|
1658 {
|
|
|
1659 stderr_out (", ");
|
|
|
1660 fflush (stderr);
|
|
|
1661 }
|
|
|
1662 if (COMPILED_FUNCTIONP (*bt->function))
|
|
|
1663 {
|
|
233
|
1664 #if defined(COMPILED_FUNCTION_ANNOTATION_HACK)
|
|
0
|
1665 Lisp_Object ann = Fcompiled_function_annotation (*bt->function);
|
|
233
|
1666 #else
|
|
|
1667 Lisp_Object ann = Qnil;
|
|
|
1668 #endif
|
|
0
|
1669 if (!NILP (ann))
|
|
|
1670 {
|
|
|
1671 stderr_out ("<compiled-function from ");
|
|
|
1672 fflush (stderr);
|
|
|
1673 debug_print_no_newline (ann);
|
|
|
1674 stderr_out (">");
|
|
|
1675 fflush (stderr);
|
|
|
1676 }
|
|
|
1677 else
|
|
|
1678 {
|
|
|
1679 stderr_out ("<compiled-function of unknown origin>");
|
|
|
1680 fflush (stderr);
|
|
|
1681 }
|
|
|
1682 }
|
|
|
1683 else
|
|
|
1684 debug_print_no_newline (*bt->function);
|
|
|
1685 first = 0;
|
|
|
1686 length--;
|
|
|
1687 bt = bt->next;
|
|
|
1688 }
|
|
|
1689 stderr_out ("]\n");
|
|
|
1690 fflush (stderr);
|
|
|
1691 }
|
|
|
1692
|
|
|
1693 #endif /* debugging kludge */
|
|
|
1694
|
|
|
1695
|
|
|
1696 void
|
|
|
1697 syms_of_print (void)
|
|
|
1698 {
|
|
|
1699 defsymbol (&Qprint_escape_newlines, "print-escape-newlines");
|
|
|
1700 defsymbol (&Qprint_readably, "print-readably");
|
|
|
1701
|
|
|
1702 defsymbol (&Qstandard_output, "standard-output");
|
|
|
1703
|
|
|
1704 #ifdef LISP_FLOAT_TYPE
|
|
|
1705 defsymbol (&Qfloat_output_format, "float-output-format");
|
|
|
1706 #endif
|
|
|
1707
|
|
|
1708 defsymbol (&Qprint_length, "print-length");
|
|
|
1709
|
|
|
1710 defsymbol (&Qprint_string_length, "print-string-length");
|
|
171
|
1711
|
|
|
1712 defsymbol (&Qdisplay_error, "display-error");
|
|
|
1713 defsymbol (&Qprint_message_label, "print-message-label");
|
|
|
1714
|
|
20
|
1715 DEFSUBR (Fprin1);
|
|
|
1716 DEFSUBR (Fprin1_to_string);
|
|
|
1717 DEFSUBR (Fprinc);
|
|
|
1718 DEFSUBR (Fprint);
|
|
100
|
1719 DEFSUBR (Ferror_message_string);
|
|
171
|
1720 DEFSUBR (Fdisplay_error);
|
|
20
|
1721 DEFSUBR (Fterpri);
|
|
|
1722 DEFSUBR (Fwrite_char);
|
|
|
1723 DEFSUBR (Falternate_debugging_output);
|
|
0
|
1724 defsymbol (&Qalternate_debugging_output, "alternate-debugging-output");
|
|
20
|
1725 DEFSUBR (Fexternal_debugging_output);
|
|
|
1726 DEFSUBR (Fopen_termscript);
|
|
0
|
1727 defsymbol (&Qexternal_debugging_output, "external-debugging-output");
|
|
20
|
1728 DEFSUBR (Fwith_output_to_temp_buffer);
|
|
0
|
1729 }
|
|
|
1730
|
|
|
1731 void
|
|
|
1732 vars_of_print (void)
|
|
|
1733 {
|
|
|
1734 alternate_do_pointer = 0;
|
|
|
1735
|
|
|
1736 DEFVAR_LISP ("standard-output", &Vstandard_output /*
|
|
|
1737 Output stream `print' uses by default for outputting a character.
|
|
|
1738 This may be any function of one argument.
|
|
|
1739 It may also be a buffer (output is inserted before point)
|
|
|
1740 or a marker (output is inserted and the marker is advanced)
|
|
|
1741 or the symbol t (output appears in the minibuffer line).
|
|
|
1742 */ );
|
|
|
1743 Vstandard_output = Qt;
|
|
|
1744
|
|
|
1745 #ifdef LISP_FLOAT_TYPE
|
|
|
1746 DEFVAR_LISP ("float-output-format", &Vfloat_output_format /*
|
|
|
1747 The format descriptor string that lisp uses to print floats.
|
|
|
1748 This is a %-spec like those accepted by `printf' in C,
|
|
|
1749 but with some restrictions. It must start with the two characters `%.'.
|
|
|
1750 After that comes an integer precision specification,
|
|
|
1751 and then a letter which controls the format.
|
|
|
1752 The letters allowed are `e', `f' and `g'.
|
|
185
|
1753 Use `e' for exponential notation "DIG.DIGITSeEXPT"
|
|
|
1754 Use `f' for decimal point notation "DIGITS.DIGITS".
|
|
0
|
1755 Use `g' to choose the shorter of those two formats for the number at hand.
|
|
|
1756 The precision in any of these cases is the number of digits following
|
|
|
1757 the decimal point. With `f', a precision of 0 means to omit the
|
|
|
1758 decimal point. 0 is not allowed with `f' or `g'.
|
|
|
1759
|
|
|
1760 A value of nil means to use `%.16g'.
|
|
|
1761
|
|
|
1762 Regardless of the value of `float-output-format', a floating point number
|
|
|
1763 will never be printed in such a way that it is ambiguous with an integer;
|
|
|
1764 that is, a floating-point number will always be printed with a decimal
|
|
|
1765 point and/or an exponent, even if the digits following the decimal point
|
|
|
1766 are all zero. This is to preserve read-equivalence.
|
|
|
1767 */ );
|
|
|
1768 Vfloat_output_format = Qnil;
|
|
|
1769 #endif /* LISP_FLOAT_TYPE */
|
|
|
1770
|
|
|
1771 DEFVAR_LISP ("print-length", &Vprint_length /*
|
|
|
1772 Maximum length of list or vector to print before abbreviating.
|
|
|
1773 A value of nil means no limit.
|
|
|
1774 */ );
|
|
|
1775 Vprint_length = Qnil;
|
|
|
1776
|
|
|
1777 DEFVAR_LISP ("print-string-length", &Vprint_string_length /*
|
|
|
1778 Maximum length of string to print before abbreviating.
|
|
|
1779 A value of nil means no limit.
|
|
|
1780 */ );
|
|
|
1781 Vprint_string_length = Qnil;
|
|
|
1782
|
|
|
1783 DEFVAR_LISP ("print-level", &Vprint_level /*
|
|
|
1784 Maximum depth of list nesting to print before abbreviating.
|
|
|
1785 A value of nil means no limit.
|
|
|
1786 */ );
|
|
|
1787 Vprint_level = Qnil;
|
|
|
1788
|
|
|
1789 DEFVAR_BOOL ("print-escape-newlines", &print_escape_newlines /*
|
|
|
1790 Non-nil means print newlines in strings as backslash-n.
|
|
|
1791 */ );
|
|
|
1792 print_escape_newlines = 0;
|
|
|
1793
|
|
|
1794 DEFVAR_BOOL ("print-readably", &print_readably /*
|
|
|
1795 If non-nil, then all objects will be printed in a readable form.
|
|
|
1796 If an object has no readable representation, then an error is signalled.
|
|
|
1797 When print-readably is true, compiled-function objects will be written in
|
|
|
1798 #[...] form instead of in #<compiled-function [...]> form, and two-element
|
|
|
1799 lists of the form (quote object) will be written as the equivalent 'object.
|
|
|
1800 Do not SET this variable; bind it instead.
|
|
|
1801 */ );
|
|
|
1802 print_readably = 0;
|
|
|
1803
|
|
245
|
1804 /* #### I think this should default to t. But we'd better wait
|
|
|
1805 until we see that it works out. */
|
|
|
1806 DEFVAR_LISP ("print-gensym", &Vprint_gensym /*
|
|
0
|
1807 If non-nil, then uninterned symbols will be printed specially.
|
|
|
1808 Uninterned symbols are those which are not present in `obarray', that is,
|
|
|
1809 those which were made with `make-symbol' or by calling `intern' with a
|
|
|
1810 second argument.
|
|
|
1811
|
|
245
|
1812 When print-gensym is true, such symbols will be preceded by "#:",
|
|
|
1813 which causes the reader to create a new symbol instead of interning
|
|
|
1814 and returning an existing one. Beware: the #: syntax creates a new
|
|
|
1815 symbol each time it is seen, so if you print an object which contains
|
|
|
1816 two pointers to the same uninterned symbol, `read' will not duplicate
|
|
|
1817 that structure.
|
|
0
|
1818
|
|
245
|
1819 If the value of `print-gensym' is a cons cell, then in addition
|
|
|
1820 refrain from clearing `print-gensym-alist' on entry to and exit from
|
|
|
1821 printing functions, so that the use of #...# and #...= can carry over
|
|
|
1822 for several separately printed objects.
|
|
0
|
1823 */ );
|
|
245
|
1824 Vprint_gensym = Qnil;
|
|
|
1825
|
|
|
1826 DEFVAR_LISP ("print-gensym-alist", &Vprint_gensym_alist /*
|
|
|
1827 Association list of elements (GENSYM . N) to guide use of #N# and #N=.
|
|
|
1828 In each element, GENSYM is an uninterned symbol that has been associated
|
|
|
1829 with #N= for the specified value of N.
|
|
|
1830 */ );
|
|
|
1831 Vprint_gensym_alist = Qnil;
|
|
0
|
1832
|
|
|
1833 DEFVAR_LISP ("print-message-label", &Vprint_message_label /*
|
|
|
1834 Label for minibuffer messages created with `print'. This should
|
|
|
1835 generally be bound with `let' rather than set. (See `display-message'.)
|
|
|
1836 */ );
|
|
|
1837 Vprint_message_label = Qprint;
|
|
|
1838 }
|
