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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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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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40 #include "sysfile.h"
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41
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42 #include <limits.h>
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43 #include <float.h>
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44 /* Define if not in float.h */
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45 #ifndef DBL_DIG
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46 #define DBL_DIG 16
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47 #endif
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48
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49 Lisp_Object Vstandard_output, Qstandard_output;
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50
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51 /* The subroutine object for external-debugging-output is kept here
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52 for the convenience of the debugger. */
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53 Lisp_Object Qexternal_debugging_output;
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54
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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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58 /* Detect most circularities to print finite output. */
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59 #define PRINT_CIRCLE 200
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60 static Lisp_Object being_printed[PRINT_CIRCLE];
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61
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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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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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93
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94 Lisp_Object Qdisplay_error;
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95 Lisp_Object Qprint_message_label;
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96
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97 /* Force immediate output of all printed data. Used for debugging. */
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98 int print_unbuffered;
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99
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100 FILE *termscript; /* Stdio stream being used for copy of all output. */
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101
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102
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103
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104 int stdout_needs_newline;
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105
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106 /* Write a string (in internal format) to stdio stream STREAM. */
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107
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108 void
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109 write_string_to_stdio_stream (FILE *stream, struct console *con,
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110 CONST Bufbyte *str,
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111 Bytecount offset, Bytecount len,
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440
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112 Lisp_Object coding_system)
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428
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113 {
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440
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114 Extcount extlen;
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428
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115 CONST Extbyte *extptr;
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116
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440
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117 TO_EXTERNAL_FORMAT (DATA, (str + offset, len),
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118 ALLOCA, (extptr, extlen),
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119 coding_system);
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428
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120 if (stream)
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121 {
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122 fwrite (extptr, 1, extlen, stream);
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123 #ifdef WINDOWSNT
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124 /* Q122442 says that pipes are "treated as files, not as
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125 devices", and that this is a feature. Before I found that
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126 article, I thought it was a bug. Thanks MS, I feel much
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127 better now. - kkm */
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128 if (stream == stdout || stream == stderr)
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129 fflush (stream);
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130 #endif
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131 }
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132 else
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133 {
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134 assert (CONSOLE_TTY_P (con));
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135 Lstream_write (XLSTREAM (CONSOLE_TTY_DATA (con)->outstream),
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136 extptr, extlen);
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137 }
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138 if (stream == stdout || stream == stderr ||
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139 (!stream && CONSOLE_TTY_DATA (con)->is_stdio))
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140 {
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141 if (termscript)
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142 {
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143 fwrite (extptr, 1, extlen, termscript);
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144 fflush (termscript);
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145 }
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146 stdout_needs_newline = (extptr[extlen - 1] != '\n');
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147 }
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148 }
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149
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150 /* Write a string to the output location specified in FUNCTION.
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151 Arguments NONRELOC, RELOC, OFFSET, and LEN are as in
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152 buffer_insert_string_1() in insdel.c. */
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153
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154 static void
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155 output_string (Lisp_Object function, CONST Bufbyte *nonreloc,
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156 Lisp_Object reloc, Bytecount offset, Bytecount len)
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157 {
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158 /* This function can GC */
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159 Charcount cclen;
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160 /* We change the value of nonreloc (fetching it from reloc as
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161 necessary), but we don't want to pass this changed value on to
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162 other functions that take both a nonreloc and a reloc, or things
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163 may get confused and an assertion failure in
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164 fixup_internal_substring() may get triggered. */
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165 CONST Bufbyte *newnonreloc = nonreloc;
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166 struct gcpro gcpro1, gcpro2;
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167
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168 /* Emacs won't print while GCing, but an external debugger might */
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169 if (gc_in_progress) return;
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170
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171 /* Perhaps not necessary but probably safer. */
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172 GCPRO2 (function, reloc);
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173
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174 fixup_internal_substring (newnonreloc, reloc, offset, &len);
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175
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176 if (STRINGP (reloc))
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177 newnonreloc = XSTRING_DATA (reloc);
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178
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179 cclen = bytecount_to_charcount (newnonreloc + offset, len);
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180
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181 if (LSTREAMP (function))
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182 {
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183 if (STRINGP (reloc))
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184 {
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185 /* Protect against Lstream_write() causing a GC and
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186 relocating the string. For small strings, we do it by
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187 alloc'ing the string and using a copy; for large strings,
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188 we inhibit GC. */
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189 if (len < 65536)
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190 {
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191 Bufbyte *copied = alloca_array (Bufbyte, len);
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192 memcpy (copied, newnonreloc + offset, len);
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193 Lstream_write (XLSTREAM (function), copied, len);
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194 }
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195 else
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196 {
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197 int speccount = specpdl_depth ();
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198 record_unwind_protect (restore_gc_inhibit,
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199 make_int (gc_currently_forbidden));
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200 gc_currently_forbidden = 1;
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201 Lstream_write (XLSTREAM (function), newnonreloc + offset, len);
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202 unbind_to (speccount, Qnil);
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203 }
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204 }
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205 else
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206 Lstream_write (XLSTREAM (function), newnonreloc + offset, len);
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207
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208 if (print_unbuffered)
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209 Lstream_flush (XLSTREAM (function));
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210 }
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211 else if (BUFFERP (function))
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212 {
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213 CHECK_LIVE_BUFFER (function);
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214 buffer_insert_string (XBUFFER (function), nonreloc, reloc, offset, len);
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215 }
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216 else if (MARKERP (function))
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217 {
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218 /* marker_position() will err if marker doesn't point anywhere. */
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219 Bufpos spoint = marker_position (function);
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220
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221 buffer_insert_string_1 (XMARKER (function)->buffer,
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222 spoint, nonreloc, reloc, offset, len,
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223 0);
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224 Fset_marker (function, make_int (spoint + cclen),
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225 Fmarker_buffer (function));
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226 }
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227 else if (FRAMEP (function))
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228 {
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229 /* This gets used by functions not invoking print_prepare(),
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230 such as Fwrite_char, Fterpri, etc.. */
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231 struct frame *f = XFRAME (function);
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232 CHECK_LIVE_FRAME (function);
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233
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234 if (!EQ (Vprint_message_label, echo_area_status (f)))
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235 clear_echo_area_from_print (f, Qnil, 1);
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236 echo_area_append (f, nonreloc, reloc, offset, len, Vprint_message_label);
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237 }
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238 else if (EQ (function, Qt) || EQ (function, Qnil))
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239 {
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240 write_string_to_stdio_stream (stdout, 0, newnonreloc, offset, len,
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440
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241 Qterminal);
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428
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242 }
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243 else
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244 {
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245 Charcount ccoff = bytecount_to_charcount (newnonreloc, offset);
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246 Charcount iii;
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247
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248 for (iii = ccoff; iii < cclen + ccoff; iii++)
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249 {
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250 call1 (function,
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251 make_char (charptr_emchar_n (newnonreloc, iii)));
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252 if (STRINGP (reloc))
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253 newnonreloc = XSTRING_DATA (reloc);
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254 }
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255 }
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256
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257 UNGCPRO;
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258 }
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259
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260 #define RESET_PRINT_GENSYM do { \
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261 if (!CONSP (Vprint_gensym)) \
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262 Vprint_gensym_alist = Qnil; \
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263 } while (0)
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264
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265 static Lisp_Object
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266 canonicalize_printcharfun (Lisp_Object printcharfun)
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267 {
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268 if (NILP (printcharfun))
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269 printcharfun = Vstandard_output;
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270
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271 if (EQ (printcharfun, Qt) || NILP (printcharfun))
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272 printcharfun = Fselected_frame (Qnil); /* print to minibuffer */
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273
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274 return printcharfun;
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275 }
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276
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277 static Lisp_Object
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278 print_prepare (Lisp_Object printcharfun, Lisp_Object *frame_kludge)
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279 {
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280 /* Emacs won't print while GCing, but an external debugger might */
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281 if (gc_in_progress)
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282 return Qnil;
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283
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284 RESET_PRINT_GENSYM;
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285
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286 printcharfun = canonicalize_printcharfun (printcharfun);
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287
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288 /* Here we could safely return the canonicalized PRINTCHARFUN.
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289 However, if PRINTCHARFUN is a frame, printing of complex
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290 structures becomes very expensive, because `append-message'
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291 (called by echo_area_append) gets called as many times as
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292 output_string() is called (and that's a *lot*). append-message
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293 tries to keep top of the message-stack in sync with the contents
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294 of " *Echo Area" buffer, consing a new string for each component
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295 of the printed structure. For instance, if you print (a a),
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296 append-message will cons up the following strings:
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297
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298 "("
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299 "(a"
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300 "(a "
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301 "(a a"
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302 "(a a)"
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303
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304 and will use only the last one. With larger objects, this turns
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305 into an O(n^2) consing frenzy that locks up XEmacs in incessant
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306 garbage collection.
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307
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308 We prevent this by creating a resizing_buffer stream and letting
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309 the printer write into it. print_finish() will notice this
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310 stream, and invoke echo_area_append() with the stream's buffer,
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311 only once. */
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312 if (FRAMEP (printcharfun))
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313 {
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314 CHECK_LIVE_FRAME (printcharfun);
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315 *frame_kludge = printcharfun;
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316 printcharfun = make_resizing_buffer_output_stream ();
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317 }
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318
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319 return printcharfun;
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320 }
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321
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322 static void
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323 print_finish (Lisp_Object stream, Lisp_Object frame_kludge)
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324 {
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325 /* Emacs won't print while GCing, but an external debugger might */
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326 if (gc_in_progress)
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327 return;
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328
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329 RESET_PRINT_GENSYM;
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330
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331 /* See the comment in print_prepare(). */
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332 if (FRAMEP (frame_kludge))
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333 {
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334 struct frame *f = XFRAME (frame_kludge);
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335 Lstream *str = XLSTREAM (stream);
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336 CHECK_LIVE_FRAME (frame_kludge);
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337
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338 Lstream_flush (str);
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339 if (!EQ (Vprint_message_label, echo_area_status (f)))
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340 clear_echo_area_from_print (f, Qnil, 1);
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341 echo_area_append (f, resizing_buffer_stream_ptr (str),
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342 Qnil, 0, Lstream_byte_count (str),
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343 Vprint_message_label);
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344 Lstream_delete (str);
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345 }
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346 }
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347
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348 /* Used for printing a single-byte character (*not* any Emchar). */
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349 #define write_char_internal(string_of_length_1, stream) \
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350 output_string (stream, (CONST Bufbyte *) (string_of_length_1), \
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351 Qnil, 0, 1)
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352
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353 /* NOTE: Do not call this with the data of a Lisp_String, as
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354 printcharfun might cause a GC, which might cause the string's data
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355 to be relocated. To princ a Lisp string, use:
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356
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357 print_internal (string, printcharfun, 0);
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358
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359 Also note that STREAM should be the result of
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360 canonicalize_printcharfun() (i.e. Qnil means stdout, not
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361 Vstandard_output, etc.) */
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362 void
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363 write_string_1 (CONST Bufbyte *str, Bytecount size, Lisp_Object stream)
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364 {
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365 /* This function can GC */
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366 #ifdef ERROR_CHECK_BUFPOS
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367 assert (size >= 0);
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368 #endif
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369 output_string (stream, str, Qnil, 0, size);
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370 }
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371
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372 void
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373 write_c_string (CONST char *str, Lisp_Object stream)
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374 {
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375 /* This function can GC */
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376 write_string_1 ((CONST Bufbyte *) str, strlen (str), stream);
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377 }
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378
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379
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380 DEFUN ("write-char", Fwrite_char, 1, 2, 0, /*
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381 Output character CH to stream STREAM.
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382 STREAM defaults to the value of `standard-output' (which see).
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383 */
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384 (ch, stream))
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385 {
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386 /* This function can GC */
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387 Bufbyte str[MAX_EMCHAR_LEN];
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388 Bytecount len;
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389
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390 CHECK_CHAR_COERCE_INT (ch);
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391 len = set_charptr_emchar (str, XCHAR (ch));
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392 output_string (canonicalize_printcharfun (stream), str, Qnil, 0, len);
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393 return ch;
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394 }
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395
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396 void
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397 temp_output_buffer_setup (Lisp_Object bufname)
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398 {
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399 /* This function can GC */
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400 struct buffer *old = current_buffer;
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401 Lisp_Object buf;
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402
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403 #ifdef I18N3
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404 /* #### This function should accept a Lisp_Object instead of a char *,
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405 so that proper translation on the buffer name can occur. */
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406 #endif
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407
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408 Fset_buffer (Fget_buffer_create (bufname));
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409
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410 current_buffer->read_only = Qnil;
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411 Ferase_buffer (Qnil);
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412
|
|
|
413 XSETBUFFER (buf, current_buffer);
|
|
|
414 specbind (Qstandard_output, buf);
|
|
|
415
|
|
|
416 set_buffer_internal (old);
|
|
|
417 }
|
|
|
418
|
|
|
419 Lisp_Object
|
|
|
420 internal_with_output_to_temp_buffer (Lisp_Object bufname,
|
|
|
421 Lisp_Object (*function) (Lisp_Object arg),
|
|
|
422 Lisp_Object arg,
|
|
|
423 Lisp_Object same_frame)
|
|
|
424 {
|
|
|
425 int speccount = specpdl_depth ();
|
|
|
426 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
427 Lisp_Object buf = Qnil;
|
|
|
428
|
|
|
429 GCPRO3 (buf, arg, same_frame);
|
|
|
430
|
|
|
431 temp_output_buffer_setup (bufname);
|
|
|
432 buf = Vstandard_output;
|
|
|
433
|
|
|
434 arg = (*function) (arg);
|
|
|
435
|
|
|
436 temp_output_buffer_show (buf, same_frame);
|
|
|
437 UNGCPRO;
|
|
|
438
|
|
|
439 return unbind_to (speccount, arg);
|
|
|
440 }
|
|
|
441
|
|
|
442 DEFUN ("with-output-to-temp-buffer", Fwith_output_to_temp_buffer, 1, UNEVALLED, 0, /*
|
|
|
443 Bind `standard-output' to buffer BUFNAME, eval BODY, then show that buffer.
|
|
|
444 The buffer is cleared out initially, and marked as unmodified when done.
|
|
|
445 All output done by BODY is inserted in that buffer by default.
|
|
|
446 The buffer is displayed in another window, but not selected.
|
|
|
447 The value of the last form in BODY is returned.
|
|
|
448 If BODY does not finish normally, the buffer BUFNAME is not displayed.
|
|
|
449
|
|
|
450 If variable `temp-buffer-show-function' is non-nil, call it at the end
|
|
|
451 to get the buffer displayed. It gets one argument, the buffer to display.
|
|
|
452 */
|
|
|
453 (args))
|
|
|
454 {
|
|
|
455 /* This function can GC */
|
|
|
456 Lisp_Object name = Qnil;
|
|
|
457 int speccount = specpdl_depth ();
|
|
|
458 struct gcpro gcpro1, gcpro2;
|
|
|
459 Lisp_Object val = Qnil;
|
|
|
460
|
|
|
461 #ifdef I18N3
|
|
|
462 /* #### should set the buffer to be translating. See print_internal(). */
|
|
|
463 #endif
|
|
|
464
|
|
|
465 GCPRO2 (name, val);
|
|
|
466 name = Feval (XCAR (args));
|
|
|
467
|
|
|
468 CHECK_STRING (name);
|
|
|
469
|
|
|
470 temp_output_buffer_setup (name);
|
|
|
471 UNGCPRO;
|
|
|
472
|
|
|
473 val = Fprogn (XCDR (args));
|
|
|
474
|
|
|
475 temp_output_buffer_show (Vstandard_output, Qnil);
|
|
|
476
|
|
|
477 return unbind_to (speccount, val);
|
|
|
478 }
|
|
|
479
|
|
|
480 DEFUN ("terpri", Fterpri, 0, 1, 0, /*
|
|
|
481 Output a newline to STREAM.
|
|
|
482 If STREAM is omitted or nil, the value of `standard-output' is used.
|
|
|
483 */
|
|
|
484 (stream))
|
|
|
485 {
|
|
|
486 /* This function can GC */
|
|
|
487 write_char_internal ("\n", canonicalize_printcharfun (stream));
|
|
|
488 return Qt;
|
|
|
489 }
|
|
|
490
|
|
|
491 DEFUN ("prin1", Fprin1, 1, 2, 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).
|
|
|
496 */
|
|
|
497 (object, stream))
|
|
|
498 {
|
|
|
499 /* This function can GC */
|
|
|
500 Lisp_Object frame = Qnil;
|
|
|
501 struct gcpro gcpro1, gcpro2;
|
|
|
502 GCPRO2 (object, stream);
|
|
|
503
|
|
|
504 print_depth = 0;
|
|
|
505 stream = print_prepare (stream, &frame);
|
|
|
506 print_internal (object, stream, 1);
|
|
|
507 print_finish (stream, frame);
|
|
|
508
|
|
|
509 UNGCPRO;
|
|
|
510 return object;
|
|
|
511 }
|
|
|
512
|
|
|
513 DEFUN ("prin1-to-string", Fprin1_to_string, 1, 2, 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.
|
|
|
518 */
|
|
|
519 (object, noescape))
|
|
|
520 {
|
|
|
521 /* This function can GC */
|
|
|
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);
|
|
|
528
|
|
|
529 print_depth = 0;
|
|
|
530 RESET_PRINT_GENSYM;
|
|
|
531 print_internal (object, stream, NILP (noescape));
|
|
|
532 RESET_PRINT_GENSYM;
|
|
|
533 Lstream_flush (str);
|
|
|
534 UNGCPRO;
|
|
|
535 result = make_string (resizing_buffer_stream_ptr (str),
|
|
|
536 Lstream_byte_count (str));
|
|
|
537 Lstream_delete (str);
|
|
|
538 return result;
|
|
|
539 }
|
|
|
540
|
|
|
541 DEFUN ("princ", Fprinc, 1, 2, 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).
|
|
|
546 */
|
|
|
547 (object, stream))
|
|
|
548 {
|
|
|
549 /* This function can GC */
|
|
|
550 Lisp_Object frame = Qnil;
|
|
|
551 struct gcpro gcpro1, gcpro2;
|
|
|
552
|
|
|
553 GCPRO2 (object, stream);
|
|
|
554 stream = print_prepare (stream, &frame);
|
|
|
555 print_depth = 0;
|
|
|
556 print_internal (object, stream, 0);
|
|
|
557 print_finish (stream, frame);
|
|
|
558 UNGCPRO;
|
|
|
559 return object;
|
|
|
560 }
|
|
|
561
|
|
|
562 DEFUN ("print", Fprint, 1, 2, 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).
|
|
|
567 */
|
|
|
568 (object, stream))
|
|
|
569 {
|
|
|
570 /* This function can GC */
|
|
|
571 Lisp_Object frame = Qnil;
|
|
|
572 struct gcpro gcpro1, gcpro2;
|
|
|
573
|
|
|
574 GCPRO2 (object, stream);
|
|
|
575 stream = print_prepare (stream, &frame);
|
|
|
576 print_depth = 0;
|
|
|
577 write_char_internal ("\n", stream);
|
|
|
578 print_internal (object, stream, 1);
|
|
|
579 write_char_internal ("\n", stream);
|
|
|
580 print_finish (stream, frame);
|
|
|
581 UNGCPRO;
|
|
|
582 return object;
|
|
|
583 }
|
|
|
584
|
|
|
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.
|
|
|
590
|
|
|
591 STREAM should be the result of canonicalize_printcharfun(). */
|
|
|
592 static void
|
|
|
593 print_error_message (Lisp_Object error_object, Lisp_Object stream)
|
|
|
594 {
|
|
|
595 /* This function can GC */
|
|
|
596 Lisp_Object type = Fcar_safe (error_object);
|
|
|
597 Lisp_Object method = Qnil;
|
|
|
598 Lisp_Object tail;
|
|
|
599
|
|
|
600 /* No need to GCPRO anything under the assumption that ERROR_OBJECT
|
|
|
601 is GCPRO'd. */
|
|
|
602
|
|
|
603 if (! (CONSP (error_object) && SYMBOLP (type)
|
|
|
604 && CONSP (Fget (type, Qerror_conditions, Qnil))))
|
|
|
605 goto error_throw;
|
|
|
606
|
|
|
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))
|
|
|
617 {
|
|
|
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 ();
|
|
438
|
632 Lisp_Object frame = Qnil;
|
|
|
633 struct gcpro gcpro1;
|
|
|
634 GCPRO1 (stream);
|
|
428
|
635
|
|
|
636 specbind (Qprint_message_label, Qerror);
|
|
438
|
637 stream = print_prepare (stream, &frame);
|
|
|
638
|
|
428
|
639 tail = Fcdr (error_object);
|
|
|
640 if (EQ (type, Qerror))
|
|
|
641 {
|
|
|
642 print_internal (Fcar (tail), stream, 0);
|
|
|
643 tail = Fcdr (tail);
|
|
|
644 }
|
|
|
645 else
|
|
|
646 {
|
|
|
647 Lisp_Object errmsg = Fget (type, Qerror_message, Qnil);
|
|
|
648 if (NILP (errmsg))
|
|
|
649 print_internal (type, stream, 0);
|
|
|
650 else
|
|
|
651 print_internal (LISP_GETTEXT (errmsg), stream, 0);
|
|
|
652 }
|
|
|
653 while (!NILP (tail))
|
|
|
654 {
|
|
|
655 write_c_string (first ? ": " : ", ", stream);
|
|
|
656 print_internal (Fcar (tail), stream, 1);
|
|
|
657 tail = Fcdr (tail);
|
|
|
658 first = 0;
|
|
|
659 }
|
|
438
|
660 print_finish (stream, frame);
|
|
|
661 UNGCPRO;
|
|
428
|
662 unbind_to (speccount, Qnil);
|
|
|
663 return;
|
|
|
664 /* not reached */
|
|
|
665 }
|
|
|
666
|
|
|
667 error_throw:
|
|
|
668 if (NILP (method))
|
|
|
669 {
|
|
|
670 write_c_string (GETTEXT ("Peculiar error "), stream);
|
|
|
671 print_internal (error_object, stream, 1);
|
|
|
672 return;
|
|
|
673 }
|
|
|
674 else
|
|
|
675 {
|
|
|
676 call2 (method, error_object, stream);
|
|
|
677 }
|
|
|
678 }
|
|
|
679
|
|
|
680 DEFUN ("error-message-string", Ferror_message_string, 1, 1, 0, /*
|
|
|
681 Convert ERROR-OBJECT to an error message, and return it.
|
|
|
682
|
|
|
683 The format of ERROR-OBJECT should be (ERROR-SYMBOL . DATA). The
|
|
|
684 message is equivalent to the one that would be issued by
|
|
|
685 `display-error' with the same argument.
|
|
|
686 */
|
|
|
687 (error_object))
|
|
|
688 {
|
|
|
689 /* This function can GC */
|
|
|
690 Lisp_Object result = Qnil;
|
|
|
691 Lisp_Object stream = make_resizing_buffer_output_stream ();
|
|
|
692 struct gcpro gcpro1;
|
|
|
693 GCPRO1 (stream);
|
|
|
694
|
|
|
695 print_error_message (error_object, stream);
|
|
|
696 Lstream_flush (XLSTREAM (stream));
|
|
|
697 result = make_string (resizing_buffer_stream_ptr (XLSTREAM (stream)),
|
|
|
698 Lstream_byte_count (XLSTREAM (stream)));
|
|
|
699 Lstream_delete (XLSTREAM (stream));
|
|
|
700
|
|
|
701 UNGCPRO;
|
|
|
702 return result;
|
|
|
703 }
|
|
|
704
|
|
|
705 DEFUN ("display-error", Fdisplay_error, 2, 2, 0, /*
|
|
|
706 Display ERROR-OBJECT on STREAM in a user-friendly way.
|
|
|
707 */
|
|
|
708 (error_object, stream))
|
|
|
709 {
|
|
|
710 /* This function can GC */
|
|
|
711 print_error_message (error_object, canonicalize_printcharfun (stream));
|
|
|
712 return Qnil;
|
|
|
713 }
|
|
|
714
|
|
|
715
|
|
|
716 #ifdef LISP_FLOAT_TYPE
|
|
|
717
|
|
|
718 Lisp_Object Vfloat_output_format;
|
|
|
719
|
|
|
720 /*
|
|
|
721 * This buffer should be at least as large as the max string size of the
|
|
440
|
722 * largest float, printed in the biggest notation. This is undoubtedly
|
|
428
|
723 * 20d float_output_format, with the negative of the C-constant "HUGE"
|
|
|
724 * from <math.h>.
|
|
|
725 *
|
|
|
726 * On the vax the worst case is -1e38 in 20d format which takes 61 bytes.
|
|
|
727 *
|
|
|
728 * I assume that IEEE-754 format numbers can take 329 bytes for the worst
|
|
|
729 * case of -1e307 in 20d float_output_format. What is one to do (short of
|
|
|
730 * re-writing _doprnt to be more sane)?
|
|
|
731 * -wsr
|
|
|
732 */
|
|
|
733 void
|
|
|
734 float_to_string (char *buf, double data)
|
|
|
735 {
|
|
|
736 Bufbyte *cp, c;
|
|
|
737 int width;
|
|
|
738
|
|
|
739 if (NILP (Vfloat_output_format)
|
|
|
740 || !STRINGP (Vfloat_output_format))
|
|
|
741 lose:
|
|
|
742 sprintf (buf, "%.16g", data);
|
|
|
743 else /* oink oink */
|
|
|
744 {
|
|
|
745 /* Check that the spec we have is fully valid.
|
|
|
746 This means not only valid for printf,
|
|
|
747 but meant for floats, and reasonable. */
|
|
|
748 cp = XSTRING_DATA (Vfloat_output_format);
|
|
|
749
|
|
|
750 if (cp[0] != '%')
|
|
|
751 goto lose;
|
|
|
752 if (cp[1] != '.')
|
|
|
753 goto lose;
|
|
|
754
|
|
|
755 cp += 2;
|
|
|
756 for (width = 0; (c = *cp, isdigit (c)); cp++)
|
|
|
757 {
|
|
|
758 width *= 10;
|
|
|
759 width += c - '0';
|
|
|
760 }
|
|
|
761
|
|
|
762 if (*cp != 'e' && *cp != 'f' && *cp != 'g' && *cp != 'E' && *cp != 'G')
|
|
|
763 goto lose;
|
|
|
764
|
|
|
765 if (width < (int) (*cp != 'e' && *cp != 'E') || width > DBL_DIG)
|
|
|
766 goto lose;
|
|
|
767
|
|
|
768 if (cp[1] != 0)
|
|
|
769 goto lose;
|
|
|
770
|
|
|
771 sprintf (buf, (char *) XSTRING_DATA (Vfloat_output_format),
|
|
|
772 data);
|
|
|
773 }
|
|
|
774
|
|
|
775 /* added by jwz: don't allow "1.0" to print as "1"; that destroys
|
|
|
776 the read-equivalence of lisp objects. (* x 1) and (* x 1.0) do
|
|
|
777 not do the same thing, so it's important that the printed
|
|
|
778 representation of that form not be corrupted by the printer.
|
|
|
779 */
|
|
|
780 {
|
|
|
781 Bufbyte *s = (Bufbyte *) buf; /* don't use signed chars here!
|
|
|
782 isdigit() can't hack them! */
|
|
|
783 if (*s == '-') s++;
|
|
|
784 for (; *s; s++)
|
|
|
785 /* if there's a non-digit, then there is a decimal point, or
|
|
|
786 it's in exponential notation, both of which are ok. */
|
|
|
787 if (!isdigit (*s))
|
|
|
788 goto DONE_LABEL;
|
|
|
789 /* otherwise, we need to hack it. */
|
|
|
790 *s++ = '.';
|
|
|
791 *s++ = '0';
|
|
|
792 *s = 0;
|
|
|
793 }
|
|
|
794 DONE_LABEL:
|
|
|
795
|
|
|
796 /* Some machines print "0.4" as ".4". I don't like that. */
|
|
|
797 if (buf [0] == '.' || (buf [0] == '-' && buf [1] == '.'))
|
|
|
798 {
|
|
|
799 int i;
|
|
|
800 for (i = strlen (buf) + 1; i >= 0; i--)
|
|
|
801 buf [i+1] = buf [i];
|
|
|
802 buf [(buf [0] == '-' ? 1 : 0)] = '0';
|
|
|
803 }
|
|
|
804 }
|
|
|
805 #endif /* LISP_FLOAT_TYPE */
|
|
|
806
|
|
|
807 /* Print NUMBER to BUFFER. The digits are first written in reverse
|
|
|
808 order (the least significant digit first), and are then reversed.
|
|
|
809 This is equivalent to sprintf(buffer, "%ld", number), only much
|
|
|
810 faster.
|
|
|
811
|
|
|
812 BUFFER should accept 24 bytes. This should suffice for the longest
|
|
|
813 numbers on 64-bit machines, including the `-' sign and the trailing
|
|
|
814 \0. */
|
|
|
815 void
|
|
|
816 long_to_string (char *buffer, long number)
|
|
|
817 {
|
|
|
818 #if (SIZEOF_LONG != 4) && (SIZEOF_LONG != 8)
|
|
|
819 /* Huh? */
|
|
|
820 sprintf (buffer, "%ld", number);
|
|
|
821 #else /* (SIZEOF_LONG == 4) || (SIZEOF_LONG == 8) */
|
|
|
822 char *p = buffer;
|
|
|
823 int force = 0;
|
|
|
824
|
|
|
825 if (number < 0)
|
|
|
826 {
|
|
|
827 *p++ = '-';
|
|
|
828 number = -number;
|
|
|
829 }
|
|
|
830
|
|
|
831 #define FROB(figure) do { \
|
|
|
832 if (force || number >= figure) \
|
|
|
833 *p++ = number / figure + '0', number %= figure, force = 1; \
|
|
|
834 } while (0)
|
|
|
835 #if SIZEOF_LONG == 8
|
|
|
836 FROB (1000000000000000000L);
|
|
|
837 FROB (100000000000000000L);
|
|
|
838 FROB (10000000000000000L);
|
|
|
839 FROB (1000000000000000L);
|
|
|
840 FROB (100000000000000L);
|
|
|
841 FROB (10000000000000L);
|
|
|
842 FROB (1000000000000L);
|
|
|
843 FROB (100000000000L);
|
|
|
844 FROB (10000000000L);
|
|
|
845 #endif /* SIZEOF_LONG == 8 */
|
|
|
846 FROB (1000000000);
|
|
|
847 FROB (100000000);
|
|
|
848 FROB (10000000);
|
|
|
849 FROB (1000000);
|
|
|
850 FROB (100000);
|
|
|
851 FROB (10000);
|
|
|
852 FROB (1000);
|
|
|
853 FROB (100);
|
|
|
854 FROB (10);
|
|
|
855 #undef FROB
|
|
|
856 *p++ = number + '0';
|
|
|
857 *p = '\0';
|
|
|
858 #endif /* (SIZEOF_LONG == 4) || (SIZEOF_LONG == 8) */
|
|
|
859 }
|
|
|
860
|
|
|
861 static void
|
|
|
862 print_vector_internal (CONST char *start, CONST char *end,
|
|
|
863 Lisp_Object obj,
|
|
|
864 Lisp_Object printcharfun, int escapeflag)
|
|
|
865 {
|
|
|
866 /* This function can GC */
|
|
|
867 int i;
|
|
|
868 int len = XVECTOR_LENGTH (obj);
|
|
|
869 int last = len;
|
|
|
870 struct gcpro gcpro1, gcpro2;
|
|
|
871 GCPRO2 (obj, printcharfun);
|
|
|
872
|
|
|
873 if (INTP (Vprint_length))
|
|
|
874 {
|
|
|
875 int max = XINT (Vprint_length);
|
|
|
876 if (max < len) last = max;
|
|
|
877 }
|
|
|
878
|
|
|
879 write_c_string (start, printcharfun);
|
|
|
880 for (i = 0; i < last; i++)
|
|
|
881 {
|
|
|
882 Lisp_Object elt = XVECTOR_DATA (obj)[i];
|
|
|
883 if (i != 0) write_char_internal (" ", printcharfun);
|
|
|
884 print_internal (elt, printcharfun, escapeflag);
|
|
|
885 }
|
|
|
886 UNGCPRO;
|
|
|
887 if (last != len)
|
|
|
888 write_c_string (" ...", printcharfun);
|
|
|
889 write_c_string (end, printcharfun);
|
|
|
890 }
|
|
|
891
|
|
|
892 void
|
|
|
893 print_cons (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
894 {
|
|
|
895 /* This function can GC */
|
|
|
896 struct gcpro gcpro1, gcpro2;
|
|
|
897
|
|
|
898 /* If print_readably is on, print (quote -foo-) as '-foo-
|
|
|
899 (Yeah, this should really be what print-pretty does, but we
|
|
|
900 don't have the rest of a pretty printer, and this actually
|
|
|
901 has non-negligible impact on size/speed of .elc files.)
|
|
|
902 */
|
|
|
903 if (print_readably &&
|
|
|
904 EQ (XCAR (obj), Qquote) &&
|
|
|
905 CONSP (XCDR (obj)) &&
|
|
|
906 NILP (XCDR (XCDR (obj))))
|
|
|
907 {
|
|
|
908 obj = XCAR (XCDR (obj));
|
|
|
909 GCPRO2 (obj, printcharfun);
|
|
|
910 write_char_internal ("\'", printcharfun);
|
|
|
911 UNGCPRO;
|
|
|
912 print_internal (obj, printcharfun, escapeflag);
|
|
|
913 return;
|
|
|
914 }
|
|
|
915
|
|
|
916 GCPRO2 (obj, printcharfun);
|
|
|
917 write_char_internal ("(", printcharfun);
|
|
|
918
|
|
|
919 {
|
|
|
920 int len;
|
|
|
921 int max = INTP (Vprint_length) ? XINT (Vprint_length) : INT_MAX;
|
|
|
922 Lisp_Object tortoise;
|
|
|
923 /* Use tortoise/hare to make sure circular lists don't infloop */
|
|
|
924
|
|
|
925 for (tortoise = obj, len = 0;
|
|
|
926 CONSP (obj);
|
|
|
927 obj = XCDR (obj), len++)
|
|
|
928 {
|
|
|
929 if (len > 0)
|
|
|
930 write_char_internal (" ", printcharfun);
|
|
|
931 if (EQ (obj, tortoise) && len > 0)
|
|
|
932 {
|
|
|
933 if (print_readably)
|
|
|
934 error ("printing unreadable circular list");
|
|
|
935 else
|
|
|
936 write_c_string ("... <circular list>", printcharfun);
|
|
|
937 break;
|
|
|
938 }
|
|
|
939 if (len & 1)
|
|
|
940 tortoise = XCDR (tortoise);
|
|
|
941 if (len > max)
|
|
|
942 {
|
|
|
943 write_c_string ("...", printcharfun);
|
|
|
944 break;
|
|
|
945 }
|
|
|
946 print_internal (XCAR (obj), printcharfun, escapeflag);
|
|
|
947 }
|
|
|
948 }
|
|
|
949 if (!LISTP (obj))
|
|
|
950 {
|
|
|
951 write_c_string (" . ", printcharfun);
|
|
|
952 print_internal (obj, printcharfun, escapeflag);
|
|
|
953 }
|
|
|
954 UNGCPRO;
|
|
|
955
|
|
|
956 write_char_internal (")", printcharfun);
|
|
|
957 return;
|
|
|
958 }
|
|
|
959
|
|
|
960 void
|
|
|
961 print_vector (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
962 {
|
|
|
963 print_vector_internal ("[", "]", obj, printcharfun, escapeflag);
|
|
|
964 }
|
|
|
965
|
|
|
966 void
|
|
|
967 print_string (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
968 {
|
|
440
|
969 Lisp_String *s = XSTRING (obj);
|
|
428
|
970 /* We distinguish between Bytecounts and Charcounts, to make
|
|
|
971 Vprint_string_length work correctly under Mule. */
|
|
|
972 Charcount size = string_char_length (s);
|
|
|
973 Charcount max = size;
|
|
|
974 Bytecount bcmax = string_length (s);
|
|
|
975 struct gcpro gcpro1, gcpro2;
|
|
|
976 GCPRO2 (obj, printcharfun);
|
|
|
977
|
|
|
978 if (INTP (Vprint_string_length) &&
|
|
|
979 XINT (Vprint_string_length) < max)
|
|
|
980 {
|
|
|
981 max = XINT (Vprint_string_length);
|
|
|
982 bcmax = charcount_to_bytecount (string_data (s), max);
|
|
|
983 }
|
|
|
984 if (max < 0)
|
|
|
985 {
|
|
|
986 max = 0;
|
|
|
987 bcmax = 0;
|
|
|
988 }
|
|
|
989
|
|
|
990 if (!escapeflag)
|
|
|
991 {
|
|
|
992 /* This deals with GC-relocation and Mule. */
|
|
|
993 output_string (printcharfun, 0, obj, 0, bcmax);
|
|
|
994 if (max < size)
|
|
|
995 write_c_string (" ...", printcharfun);
|
|
|
996 }
|
|
|
997 else
|
|
|
998 {
|
|
|
999 Bytecount i, last = 0;
|
|
|
1000
|
|
|
1001 write_char_internal ("\"", printcharfun);
|
|
|
1002 for (i = 0; i < bcmax; i++)
|
|
|
1003 {
|
|
|
1004 Bufbyte ch = string_byte (s, i);
|
|
|
1005 if (ch == '\"' || ch == '\\'
|
|
|
1006 || (ch == '\n' && print_escape_newlines))
|
|
|
1007 {
|
|
|
1008 if (i > last)
|
|
|
1009 {
|
|
|
1010 output_string (printcharfun, 0, obj, last,
|
|
|
1011 i - last);
|
|
|
1012 }
|
|
|
1013 if (ch == '\n')
|
|
|
1014 {
|
|
|
1015 write_c_string ("\\n", printcharfun);
|
|
|
1016 }
|
|
|
1017 else
|
|
|
1018 {
|
|
|
1019 write_char_internal ("\\", printcharfun);
|
|
|
1020 /* This is correct for Mule because the
|
|
|
1021 character is either \ or " */
|
|
|
1022 write_char_internal (string_data (s) + i, printcharfun);
|
|
|
1023 }
|
|
|
1024 last = i + 1;
|
|
|
1025 }
|
|
|
1026 }
|
|
|
1027 if (bcmax > last)
|
|
|
1028 {
|
|
|
1029 output_string (printcharfun, 0, obj, last,
|
|
|
1030 bcmax - last);
|
|
|
1031 }
|
|
|
1032 if (max < size)
|
|
|
1033 write_c_string (" ...", printcharfun);
|
|
|
1034 write_char_internal ("\"", printcharfun);
|
|
|
1035 }
|
|
|
1036 UNGCPRO;
|
|
|
1037 }
|
|
|
1038
|
|
|
1039 static void
|
|
|
1040 default_object_printer (Lisp_Object obj, Lisp_Object printcharfun,
|
|
|
1041 int escapeflag)
|
|
|
1042 {
|
|
|
1043 struct lcrecord_header *header =
|
|
|
1044 (struct lcrecord_header *) XPNTR (obj);
|
|
|
1045 char buf[200];
|
|
|
1046
|
|
|
1047 if (print_readably)
|
|
|
1048 error ("printing unreadable object #<%s 0x%x>",
|
|
|
1049 LHEADER_IMPLEMENTATION (&header->lheader)->name,
|
|
|
1050 header->uid);
|
|
|
1051
|
|
|
1052 sprintf (buf, "#<%s 0x%x>",
|
|
|
1053 LHEADER_IMPLEMENTATION (&header->lheader)->name,
|
|
|
1054 header->uid);
|
|
|
1055 write_c_string (buf, printcharfun);
|
|
|
1056 }
|
|
|
1057
|
|
|
1058 void
|
|
|
1059 internal_object_printer (Lisp_Object obj, Lisp_Object printcharfun,
|
|
|
1060 int escapeflag)
|
|
|
1061 {
|
|
|
1062 char buf[200];
|
|
|
1063 sprintf (buf, "#<INTERNAL OBJECT (XEmacs bug?) (%s) 0x%lx>",
|
|
|
1064 XRECORD_LHEADER_IMPLEMENTATION (obj)->name,
|
|
|
1065 (unsigned long) XPNTR (obj));
|
|
|
1066 write_c_string (buf, printcharfun);
|
|
|
1067 }
|
|
|
1068
|
|
|
1069 void
|
|
|
1070 print_internal (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
1071 {
|
|
|
1072 /* This function can GC */
|
|
|
1073
|
|
|
1074 QUIT;
|
|
|
1075
|
|
|
1076 /* Emacs won't print while GCing, but an external debugger might */
|
|
|
1077 if (gc_in_progress) return;
|
|
|
1078
|
|
|
1079 #ifdef I18N3
|
|
|
1080 /* #### Both input and output streams should have a flag associated
|
|
|
1081 with them indicating whether output to that stream, or strings
|
|
|
1082 read from the stream, get translated using Fgettext(). Such a
|
|
|
1083 stream is called a "translating stream". For the minibuffer and
|
|
|
1084 external-debugging-output this is always true on output, and
|
|
|
1085 with-output-to-temp-buffer sets the flag to true for the buffer
|
|
|
1086 it creates. This flag should also be user-settable. Perhaps it
|
|
|
1087 should be split up into two flags, one for input and one for
|
|
|
1088 output. */
|
|
|
1089 #endif
|
|
|
1090
|
|
|
1091 /* Detect circularities and truncate them.
|
|
|
1092 No need to offer any alternative--this is better than an error. */
|
|
|
1093 if (CONSP (obj) || VECTORP (obj) || COMPILED_FUNCTIONP (obj))
|
|
|
1094 {
|
|
|
1095 int i;
|
|
|
1096 for (i = 0; i < print_depth; i++)
|
|
|
1097 if (EQ (obj, being_printed[i]))
|
|
|
1098 {
|
|
|
1099 char buf[32];
|
|
|
1100 *buf = '#';
|
|
|
1101 long_to_string (buf + 1, i);
|
|
|
1102 write_c_string (buf, printcharfun);
|
|
|
1103 return;
|
|
|
1104 }
|
|
|
1105 }
|
|
|
1106
|
|
|
1107 being_printed[print_depth] = obj;
|
|
|
1108 print_depth++;
|
|
|
1109
|
|
|
1110 if (print_depth > PRINT_CIRCLE)
|
|
|
1111 error ("Apparently circular structure being printed");
|
|
|
1112
|
|
|
1113 switch (XTYPE (obj))
|
|
|
1114 {
|
|
|
1115 case Lisp_Type_Int_Even:
|
|
|
1116 case Lisp_Type_Int_Odd:
|
|
|
1117 {
|
|
434
|
1118 /* ASCII Decimal representation uses 2.4 times as many bits as
|
|
|
1119 machine binary. */
|
|
|
1120 char buf[3 * sizeof (EMACS_INT) + 5];
|
|
428
|
1121 long_to_string (buf, XINT (obj));
|
|
|
1122 write_c_string (buf, printcharfun);
|
|
|
1123 break;
|
|
|
1124 }
|
|
|
1125
|
|
|
1126 case Lisp_Type_Char:
|
|
|
1127 {
|
|
|
1128 /* God intended that this be #\..., you know. */
|
|
|
1129 char buf[16];
|
|
|
1130 Emchar ch = XCHAR (obj);
|
|
|
1131 char *p = buf;
|
|
|
1132 *p++ = '?';
|
|
434
|
1133 if (ch < 32)
|
|
|
1134 {
|
|
|
1135 *p++ = '\\';
|
|
|
1136 switch (ch)
|
|
|
1137 {
|
|
|
1138 case '\t': *p++ = 't'; break;
|
|
|
1139 case '\n': *p++ = 'n'; break;
|
|
|
1140 case '\r': *p++ = 'r'; break;
|
|
|
1141 default:
|
|
|
1142 *p++ = '^';
|
|
|
1143 *p++ = ch + 64;
|
|
|
1144 if ((ch + 64) == '\\')
|
|
|
1145 *p++ = '\\';
|
|
|
1146 break;
|
|
|
1147 }
|
|
|
1148 }
|
|
|
1149 else if (ch < 127)
|
|
428
|
1150 {
|
|
434
|
1151 /* syntactically special characters should be escaped. */
|
|
|
1152 switch (ch)
|
|
|
1153 {
|
|
|
1154 case ' ':
|
|
|
1155 case '"':
|
|
|
1156 case '#':
|
|
|
1157 case '\'':
|
|
|
1158 case '(':
|
|
|
1159 case ')':
|
|
|
1160 case ',':
|
|
|
1161 case '.':
|
|
|
1162 case ';':
|
|
|
1163 case '?':
|
|
|
1164 case '[':
|
|
|
1165 case '\\':
|
|
|
1166 case ']':
|
|
|
1167 case '`':
|
|
|
1168 *p++ = '\\';
|
|
|
1169 }
|
|
|
1170 *p++ = ch;
|
|
428
|
1171 }
|
|
|
1172 else if (ch == 127)
|
|
434
|
1173 {
|
|
|
1174 *p++ = '\\', *p++ = '^', *p++ = '?';
|
|
|
1175 }
|
|
|
1176 else if (ch < 160)
|
|
428
|
1177 {
|
|
|
1178 *p++ = '\\', *p++ = '^';
|
|
434
|
1179 p += set_charptr_emchar ((Bufbyte *) p, ch + 64);
|
|
428
|
1180 }
|
|
|
1181 else
|
|
434
|
1182 {
|
|
|
1183 p += set_charptr_emchar ((Bufbyte *) p, ch);
|
|
|
1184 }
|
|
440
|
1185
|
|
434
|
1186 output_string (printcharfun, (Bufbyte *) buf, Qnil, 0, p - buf);
|
|
|
1187
|
|
428
|
1188 break;
|
|
|
1189 }
|
|
|
1190
|
|
|
1191 case Lisp_Type_Record:
|
|
|
1192 {
|
|
|
1193 struct lrecord_header *lheader = XRECORD_LHEADER (obj);
|
|
|
1194 struct gcpro gcpro1, gcpro2;
|
|
|
1195
|
|
|
1196 if (CONSP (obj) || VECTORP(obj))
|
|
|
1197 {
|
|
|
1198 /* If deeper than spec'd depth, print placeholder. */
|
|
|
1199 if (INTP (Vprint_level)
|
|
|
1200 && print_depth > XINT (Vprint_level))
|
|
|
1201 {
|
|
|
1202 GCPRO2 (obj, printcharfun);
|
|
|
1203 write_c_string ("...", printcharfun);
|
|
|
1204 UNGCPRO;
|
|
|
1205 break;
|
|
|
1206 }
|
|
|
1207 }
|
|
|
1208
|
|
|
1209 GCPRO2 (obj, printcharfun);
|
|
|
1210 if (LHEADER_IMPLEMENTATION (lheader)->printer)
|
|
|
1211 ((LHEADER_IMPLEMENTATION (lheader)->printer)
|
|
|
1212 (obj, printcharfun, escapeflag));
|
|
|
1213 else
|
|
|
1214 default_object_printer (obj, printcharfun, escapeflag);
|
|
|
1215 UNGCPRO;
|
|
|
1216 break;
|
|
|
1217 }
|
|
|
1218
|
|
|
1219 default:
|
|
|
1220 {
|
|
|
1221 #ifdef ERROR_CHECK_TYPECHECK
|
|
|
1222 abort ();
|
|
|
1223 #else /* not ERROR_CHECK_TYPECHECK */
|
|
|
1224 char buf[128];
|
|
|
1225 /* We're in trouble if this happens! */
|
|
|
1226 if (print_readably)
|
|
|
1227 error ("printing illegal data type #o%03o",
|
|
|
1228 (int) XTYPE (obj));
|
|
|
1229 write_c_string ("#<EMACS BUG: ILLEGAL DATATYPE ",
|
|
|
1230 printcharfun);
|
|
|
1231 sprintf (buf, "(#o%3o)", (int) XTYPE (obj));
|
|
|
1232 write_c_string (buf, printcharfun);
|
|
|
1233 write_c_string
|
|
|
1234 (" Save your buffers immediately and please report this bug>",
|
|
|
1235 printcharfun);
|
|
|
1236 #endif /* not ERROR_CHECK_TYPECHECK */
|
|
|
1237 break;
|
|
|
1238 }
|
|
|
1239 }
|
|
|
1240
|
|
|
1241 print_depth--;
|
|
|
1242 }
|
|
|
1243
|
|
|
1244
|
|
|
1245 #ifdef LISP_FLOAT_TYPE
|
|
|
1246 void
|
|
|
1247 print_float (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
1248 {
|
|
|
1249 char pigbuf[350]; /* see comments in float_to_string */
|
|
|
1250
|
|
|
1251 float_to_string (pigbuf, XFLOAT_DATA (obj));
|
|
|
1252 write_c_string (pigbuf, printcharfun);
|
|
|
1253 }
|
|
|
1254 #endif /* LISP_FLOAT_TYPE */
|
|
|
1255
|
|
|
1256 void
|
|
|
1257 print_symbol (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
1258 {
|
|
|
1259 /* This function can GC */
|
|
|
1260 /* #### Bug!! (intern "") isn't printed in some distinguished way */
|
|
|
1261 /* #### (the reader also loses on it) */
|
|
440
|
1262 Lisp_String *name = symbol_name (XSYMBOL (obj));
|
|
428
|
1263 Bytecount size = string_length (name);
|
|
|
1264 struct gcpro gcpro1, gcpro2;
|
|
|
1265
|
|
|
1266 if (!escapeflag)
|
|
|
1267 {
|
|
|
1268 /* This deals with GC-relocation */
|
|
|
1269 Lisp_Object nameobj;
|
|
|
1270 XSETSTRING (nameobj, name);
|
|
|
1271 output_string (printcharfun, 0, nameobj, 0, size);
|
|
|
1272 return;
|
|
|
1273 }
|
|
|
1274 GCPRO2 (obj, printcharfun);
|
|
|
1275
|
|
|
1276 /* If we print an uninterned symbol as part of a complex object and
|
|
|
1277 the flag print-gensym is non-nil, prefix it with #n= to read the
|
|
|
1278 object back with the #n# reader syntax later if needed. */
|
|
|
1279 if (!NILP (Vprint_gensym)
|
|
|
1280 /* #### Test whether this produces a noticable slow-down for
|
|
|
1281 printing when print-gensym is non-nil. */
|
|
|
1282 && !EQ (obj, oblookup (Vobarray,
|
|
|
1283 string_data (symbol_name (XSYMBOL (obj))),
|
|
|
1284 string_length (symbol_name (XSYMBOL (obj))))))
|
|
|
1285 {
|
|
|
1286 if (print_depth > 1)
|
|
|
1287 {
|
|
|
1288 Lisp_Object tem = Fassq (obj, Vprint_gensym_alist);
|
|
|
1289 if (CONSP (tem))
|
|
|
1290 {
|
|
|
1291 write_char_internal ("#", printcharfun);
|
|
|
1292 print_internal (XCDR (tem), printcharfun, escapeflag);
|
|
|
1293 write_char_internal ("#", printcharfun);
|
|
|
1294 return;
|
|
|
1295 }
|
|
|
1296 else
|
|
|
1297 {
|
|
|
1298 if (CONSP (Vprint_gensym_alist))
|
|
|
1299 {
|
|
|
1300 /* Vprint_gensym_alist is exposed to Lisp, so we
|
|
|
1301 have to be careful. */
|
|
|
1302 CHECK_CONS (XCAR (Vprint_gensym_alist));
|
|
|
1303 CHECK_INT (XCDR (XCAR (Vprint_gensym_alist)));
|
|
|
1304 XSETINT (tem, XINT (XCDR (XCAR (Vprint_gensym_alist))) + 1);
|
|
|
1305 }
|
|
|
1306 else
|
|
|
1307 XSETINT (tem, 1);
|
|
|
1308 Vprint_gensym_alist = Fcons (Fcons (obj, tem), Vprint_gensym_alist);
|
|
|
1309
|
|
|
1310 write_char_internal ("#", printcharfun);
|
|
|
1311 print_internal (tem, printcharfun, escapeflag);
|
|
|
1312 write_char_internal ("=", printcharfun);
|
|
|
1313 }
|
|
|
1314 }
|
|
|
1315 write_c_string ("#:", printcharfun);
|
|
|
1316 }
|
|
|
1317
|
|
|
1318 /* Does it look like an integer or a float? */
|
|
|
1319 {
|
|
|
1320 Bufbyte *data = string_data (name);
|
|
|
1321 Bytecount confusing = 0;
|
|
|
1322
|
|
|
1323 if (size == 0)
|
|
|
1324 goto not_yet_confused; /* Really confusing */
|
|
|
1325 else if (isdigit (data[0]))
|
|
|
1326 confusing = 0;
|
|
|
1327 else if (size == 1)
|
|
|
1328 goto not_yet_confused;
|
|
|
1329 else if (data[0] == '-' || data[0] == '+')
|
|
|
1330 confusing = 1;
|
|
|
1331 else
|
|
|
1332 goto not_yet_confused;
|
|
|
1333
|
|
|
1334 for (; confusing < size; confusing++)
|
|
|
1335 {
|
|
|
1336 if (!isdigit (data[confusing]))
|
|
|
1337 {
|
|
|
1338 confusing = 0;
|
|
|
1339 break;
|
|
|
1340 }
|
|
|
1341 }
|
|
|
1342 not_yet_confused:
|
|
|
1343
|
|
|
1344 #ifdef LISP_FLOAT_TYPE
|
|
|
1345 if (!confusing)
|
|
|
1346 /* #### Ugh, this is needlessly complex and slow for what we
|
|
|
1347 need here. It might be a good idea to copy equivalent code
|
|
|
1348 from FSF. --hniksic */
|
|
|
1349 confusing = isfloat_string ((char *) data);
|
|
|
1350 #endif
|
|
|
1351 if (confusing)
|
|
|
1352 write_char_internal ("\\", printcharfun);
|
|
|
1353 }
|
|
|
1354
|
|
|
1355 {
|
|
|
1356 Lisp_Object nameobj;
|
|
|
1357 Bytecount i;
|
|
|
1358 Bytecount last = 0;
|
|
|
1359
|
|
|
1360 XSETSTRING (nameobj, name);
|
|
|
1361 for (i = 0; i < size; i++)
|
|
|
1362 {
|
|
|
1363 switch (string_byte (name, i))
|
|
|
1364 {
|
|
|
1365 case 0: case 1: case 2: case 3:
|
|
|
1366 case 4: case 5: case 6: case 7:
|
|
|
1367 case 8: case 9: case 10: case 11:
|
|
|
1368 case 12: case 13: case 14: case 15:
|
|
|
1369 case 16: case 17: case 18: case 19:
|
|
|
1370 case 20: case 21: case 22: case 23:
|
|
|
1371 case 24: case 25: case 26: case 27:
|
|
|
1372 case 28: case 29: case 30: case 31:
|
|
|
1373 case ' ': case '\"': case '\\': case '\'':
|
|
|
1374 case ';': case '#' : case '(' : case ')':
|
|
|
1375 case ',': case '.' : case '`' :
|
|
|
1376 case '[': case ']' : case '?' :
|
|
|
1377 if (i > last)
|
|
|
1378 output_string (printcharfun, 0, nameobj, last, i - last);
|
|
|
1379 write_char_internal ("\\", printcharfun);
|
|
|
1380 last = i;
|
|
|
1381 }
|
|
|
1382 }
|
|
|
1383 output_string (printcharfun, 0, nameobj, last, size - last);
|
|
|
1384 }
|
|
|
1385 UNGCPRO;
|
|
|
1386 }
|
|
|
1387
|
|
|
1388 /* #ifdef DEBUG_XEMACS */
|
|
|
1389
|
|
|
1390 /* I don't like seeing `Note: Strange doc (not fboundp) for function
|
|
|
1391 alternate-debugging-output @ 429542' -slb */
|
|
|
1392 /* #### Eek! Any clue how to get rid of it? In fact, how about
|
|
|
1393 getting rid of this function altogether? Does anything actually
|
|
|
1394 *use* it? --hniksic */
|
|
|
1395
|
|
|
1396 static int alternate_do_pointer;
|
|
|
1397 static char alternate_do_string[5000];
|
|
|
1398
|
|
|
1399 DEFUN ("alternate-debugging-output", Falternate_debugging_output, 1, 1, 0, /*
|
|
|
1400 Append CHARACTER to the array `alternate_do_string'.
|
|
|
1401 This can be used in place of `external-debugging-output' as a function
|
|
|
1402 to be passed to `print'. Before calling `print', set `alternate_do_pointer'
|
|
|
1403 to 0.
|
|
|
1404 */
|
|
|
1405 (character))
|
|
|
1406 {
|
|
|
1407 Bufbyte str[MAX_EMCHAR_LEN];
|
|
|
1408 Bytecount len;
|
|
|
1409 int extlen;
|
|
|
1410 CONST Extbyte *extptr;
|
|
|
1411
|
|
|
1412 CHECK_CHAR_COERCE_INT (character);
|
|
|
1413 len = set_charptr_emchar (str, XCHAR (character));
|
|
440
|
1414 TO_EXTERNAL_FORMAT (DATA, (str, len),
|
|
|
1415 ALLOCA, (extptr, extlen),
|
|
|
1416 Qterminal);
|
|
428
|
1417 memcpy (alternate_do_string + alternate_do_pointer, extptr, extlen);
|
|
|
1418 alternate_do_pointer += extlen;
|
|
|
1419 alternate_do_string[alternate_do_pointer] = 0;
|
|
|
1420 return character;
|
|
|
1421 }
|
|
|
1422 /* #endif / * DEBUG_XEMACS */
|
|
|
1423
|
|
|
1424 DEFUN ("external-debugging-output", Fexternal_debugging_output, 1, 3, 0, /*
|
|
|
1425 Write CHAR-OR-STRING to stderr or stdout.
|
|
|
1426 If optional arg STDOUT-P is non-nil, write to stdout; otherwise, write
|
|
|
1427 to stderr. You can use this function to write directly to the terminal.
|
|
|
1428 This function can be used as the STREAM argument of Fprint() or the like.
|
|
|
1429
|
|
|
1430 If you have opened a termscript file (using `open-termscript'), then
|
|
|
1431 the output also will be logged to this file.
|
|
|
1432 */
|
|
|
1433 (char_or_string, stdout_p, device))
|
|
|
1434 {
|
|
|
1435 FILE *file = 0;
|
|
|
1436 struct console *con = 0;
|
|
|
1437
|
|
|
1438 if (NILP (device))
|
|
|
1439 {
|
|
|
1440 if (!NILP (stdout_p))
|
|
|
1441 file = stdout;
|
|
|
1442 else
|
|
|
1443 file = stderr;
|
|
|
1444 }
|
|
|
1445 else
|
|
|
1446 {
|
|
|
1447 CHECK_LIVE_DEVICE (device);
|
|
|
1448 if (!DEVICE_TTY_P (XDEVICE (device)) &&
|
|
|
1449 !DEVICE_STREAM_P (XDEVICE (device)))
|
|
|
1450 signal_simple_error ("Must be tty or stream device", device);
|
|
|
1451 con = XCONSOLE (DEVICE_CONSOLE (XDEVICE (device)));
|
|
|
1452 if (DEVICE_TTY_P (XDEVICE (device)))
|
|
|
1453 file = 0;
|
|
|
1454 else if (!NILP (stdout_p))
|
|
|
1455 file = CONSOLE_STREAM_DATA (con)->out;
|
|
|
1456 else
|
|
|
1457 file = CONSOLE_STREAM_DATA (con)->err;
|
|
|
1458 }
|
|
|
1459
|
|
|
1460 if (STRINGP (char_or_string))
|
|
|
1461 write_string_to_stdio_stream (file, con,
|
|
|
1462 XSTRING_DATA (char_or_string),
|
|
|
1463 0, XSTRING_LENGTH (char_or_string),
|
|
440
|
1464 Qterminal);
|
|
428
|
1465 else
|
|
|
1466 {
|
|
|
1467 Bufbyte str[MAX_EMCHAR_LEN];
|
|
|
1468 Bytecount len;
|
|
|
1469
|
|
|
1470 CHECK_CHAR_COERCE_INT (char_or_string);
|
|
|
1471 len = set_charptr_emchar (str, XCHAR (char_or_string));
|
|
440
|
1472 write_string_to_stdio_stream (file, con, str, 0, len, Qterminal);
|
|
428
|
1473 }
|
|
|
1474
|
|
|
1475 return char_or_string;
|
|
|
1476 }
|
|
|
1477
|
|
|
1478 DEFUN ("open-termscript", Fopen_termscript, 1, 1, "FOpen termscript file: ", /*
|
|
|
1479 Start writing all terminal output to FILE as well as the terminal.
|
|
|
1480 FILE = nil means just close any termscript file currently open.
|
|
|
1481 */
|
|
|
1482 (file))
|
|
|
1483 {
|
|
|
1484 /* This function can GC */
|
|
|
1485 if (termscript != 0)
|
|
|
1486 fclose (termscript);
|
|
|
1487 termscript = 0;
|
|
|
1488
|
|
|
1489 if (! NILP (file))
|
|
|
1490 {
|
|
|
1491 file = Fexpand_file_name (file, Qnil);
|
|
|
1492 termscript = fopen ((char *) XSTRING_DATA (file), "w");
|
|
|
1493 if (termscript == NULL)
|
|
|
1494 report_file_error ("Opening termscript", list1 (file));
|
|
|
1495 }
|
|
|
1496 return Qnil;
|
|
|
1497 }
|
|
|
1498
|
|
|
1499 #if 1
|
|
|
1500 /* Debugging kludge -- unbuffered */
|
|
440
|
1501 static int debug_print_length = 50;
|
|
|
1502 static int debug_print_level = 15;
|
|
|
1503 static int debug_print_readably = -1;
|
|
428
|
1504
|
|
|
1505 static void
|
|
|
1506 debug_print_no_newline (Lisp_Object debug_print_obj)
|
|
|
1507 {
|
|
|
1508 /* This function can GC */
|
|
440
|
1509 int save_print_readably = print_readably;
|
|
|
1510 int save_print_depth = print_depth;
|
|
|
1511 Lisp_Object save_Vprint_length = Vprint_length;
|
|
|
1512 Lisp_Object save_Vprint_level = Vprint_level;
|
|
|
1513 Lisp_Object save_Vinhibit_quit = Vinhibit_quit;
|
|
428
|
1514 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
440
|
1515 GCPRO3 (save_Vprint_level, save_Vprint_length, save_Vinhibit_quit);
|
|
428
|
1516
|
|
|
1517 if (gc_in_progress)
|
|
|
1518 stderr_out ("** gc-in-progress! Bad idea to print anything! **\n");
|
|
|
1519
|
|
|
1520 print_depth = 0;
|
|
440
|
1521 print_readably = debug_print_readably != -1 ? debug_print_readably : 0;
|
|
428
|
1522 print_unbuffered++;
|
|
|
1523 /* Could use unwind-protect, but why bother? */
|
|
|
1524 if (debug_print_length > 0)
|
|
|
1525 Vprint_length = make_int (debug_print_length);
|
|
|
1526 if (debug_print_level > 0)
|
|
|
1527 Vprint_level = make_int (debug_print_level);
|
|
440
|
1528
|
|
428
|
1529 print_internal (debug_print_obj, Qexternal_debugging_output, 1);
|
|
440
|
1530
|
|
|
1531 Vinhibit_quit = save_Vinhibit_quit;
|
|
|
1532 Vprint_level = save_Vprint_level;
|
|
|
1533 Vprint_length = save_Vprint_length;
|
|
|
1534 print_depth = save_print_depth;
|
|
|
1535 print_readably = save_print_readably;
|
|
428
|
1536 print_unbuffered--;
|
|
|
1537 UNGCPRO;
|
|
|
1538 }
|
|
|
1539
|
|
|
1540 void
|
|
|
1541 debug_print (Lisp_Object debug_print_obj)
|
|
|
1542 {
|
|
|
1543 debug_print_no_newline (debug_print_obj);
|
|
|
1544 stderr_out ("\n");
|
|
|
1545 fflush (stderr);
|
|
|
1546 }
|
|
|
1547
|
|
|
1548 /* Debugging kludge -- unbuffered */
|
|
|
1549 /* This function provided for the benefit of the debugger. */
|
|
|
1550 void debug_backtrace (void);
|
|
|
1551 void
|
|
|
1552 debug_backtrace (void)
|
|
|
1553 {
|
|
|
1554 /* This function can GC */
|
|
|
1555 int old_print_readably = print_readably;
|
|
|
1556 int old_print_depth = print_depth;
|
|
|
1557 Lisp_Object old_print_length = Vprint_length;
|
|
|
1558 Lisp_Object old_print_level = Vprint_level;
|
|
|
1559 Lisp_Object old_inhibit_quit = Vinhibit_quit;
|
|
|
1560
|
|
|
1561 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
1562 GCPRO3 (old_print_level, old_print_length, old_inhibit_quit);
|
|
|
1563
|
|
|
1564 if (gc_in_progress)
|
|
|
1565 stderr_out ("** gc-in-progress! Bad idea to print anything! **\n");
|
|
|
1566
|
|
|
1567 print_depth = 0;
|
|
|
1568 print_readably = 0;
|
|
|
1569 print_unbuffered++;
|
|
|
1570 /* Could use unwind-protect, but why bother? */
|
|
|
1571 if (debug_print_length > 0)
|
|
|
1572 Vprint_length = make_int (debug_print_length);
|
|
|
1573 if (debug_print_level > 0)
|
|
|
1574 Vprint_level = make_int (debug_print_level);
|
|
|
1575
|
|
|
1576 Fbacktrace (Qexternal_debugging_output, Qt);
|
|
|
1577 stderr_out ("\n");
|
|
|
1578 fflush (stderr);
|
|
|
1579
|
|
|
1580 Vinhibit_quit = old_inhibit_quit;
|
|
|
1581 Vprint_level = old_print_level;
|
|
|
1582 Vprint_length = old_print_length;
|
|
|
1583 print_depth = old_print_depth;
|
|
|
1584 print_readably = old_print_readably;
|
|
|
1585 print_unbuffered--;
|
|
|
1586
|
|
|
1587 UNGCPRO;
|
|
|
1588 }
|
|
|
1589
|
|
|
1590 void
|
|
|
1591 debug_short_backtrace (int length)
|
|
|
1592 {
|
|
|
1593 int first = 1;
|
|
|
1594 struct backtrace *bt = backtrace_list;
|
|
|
1595 stderr_out (" [");
|
|
|
1596 fflush (stderr);
|
|
|
1597 while (length > 0 && bt)
|
|
|
1598 {
|
|
|
1599 if (!first)
|
|
|
1600 {
|
|
|
1601 stderr_out (", ");
|
|
|
1602 fflush (stderr);
|
|
|
1603 }
|
|
|
1604 if (COMPILED_FUNCTIONP (*bt->function))
|
|
|
1605 {
|
|
|
1606 #if defined(COMPILED_FUNCTION_ANNOTATION_HACK)
|
|
|
1607 Lisp_Object ann =
|
|
|
1608 compiled_function_annotation (XCOMPILED_FUNCTION (*bt->function));
|
|
|
1609 #else
|
|
|
1610 Lisp_Object ann = Qnil;
|
|
|
1611 #endif
|
|
|
1612 if (!NILP (ann))
|
|
|
1613 {
|
|
|
1614 stderr_out ("<compiled-function from ");
|
|
|
1615 fflush (stderr);
|
|
|
1616 debug_print_no_newline (ann);
|
|
|
1617 stderr_out (">");
|
|
|
1618 fflush (stderr);
|
|
|
1619 }
|
|
|
1620 else
|
|
|
1621 {
|
|
|
1622 stderr_out ("<compiled-function of unknown origin>");
|
|
|
1623 fflush (stderr);
|
|
|
1624 }
|
|
|
1625 }
|
|
|
1626 else
|
|
|
1627 debug_print_no_newline (*bt->function);
|
|
|
1628 first = 0;
|
|
|
1629 length--;
|
|
|
1630 bt = bt->next;
|
|
|
1631 }
|
|
|
1632 stderr_out ("]\n");
|
|
|
1633 fflush (stderr);
|
|
|
1634 }
|
|
|
1635
|
|
|
1636 #endif /* debugging kludge */
|
|
|
1637
|
|
|
1638
|
|
|
1639 void
|
|
|
1640 syms_of_print (void)
|
|
|
1641 {
|
|
|
1642 defsymbol (&Qstandard_output, "standard-output");
|
|
|
1643
|
|
|
1644 defsymbol (&Qprint_length, "print-length");
|
|
|
1645
|
|
|
1646 defsymbol (&Qprint_string_length, "print-string-length");
|
|
|
1647
|
|
|
1648 defsymbol (&Qdisplay_error, "display-error");
|
|
|
1649 defsymbol (&Qprint_message_label, "print-message-label");
|
|
|
1650
|
|
|
1651 DEFSUBR (Fprin1);
|
|
|
1652 DEFSUBR (Fprin1_to_string);
|
|
|
1653 DEFSUBR (Fprinc);
|
|
|
1654 DEFSUBR (Fprint);
|
|
|
1655 DEFSUBR (Ferror_message_string);
|
|
|
1656 DEFSUBR (Fdisplay_error);
|
|
|
1657 DEFSUBR (Fterpri);
|
|
|
1658 DEFSUBR (Fwrite_char);
|
|
|
1659 DEFSUBR (Falternate_debugging_output);
|
|
|
1660 DEFSUBR (Fexternal_debugging_output);
|
|
|
1661 DEFSUBR (Fopen_termscript);
|
|
|
1662 defsymbol (&Qexternal_debugging_output, "external-debugging-output");
|
|
|
1663 DEFSUBR (Fwith_output_to_temp_buffer);
|
|
|
1664 }
|
|
|
1665
|
|
|
1666 void
|
|
|
1667 reinit_vars_of_print (void)
|
|
|
1668 {
|
|
|
1669 alternate_do_pointer = 0;
|
|
|
1670 }
|
|
|
1671
|
|
|
1672 void
|
|
|
1673 vars_of_print (void)
|
|
|
1674 {
|
|
|
1675 reinit_vars_of_print ();
|
|
|
1676
|
|
|
1677 DEFVAR_LISP ("standard-output", &Vstandard_output /*
|
|
|
1678 Output stream `print' uses by default for outputting a character.
|
|
|
1679 This may be any function of one argument.
|
|
|
1680 It may also be a buffer (output is inserted before point)
|
|
|
1681 or a marker (output is inserted and the marker is advanced)
|
|
|
1682 or the symbol t (output appears in the minibuffer line).
|
|
|
1683 */ );
|
|
|
1684 Vstandard_output = Qt;
|
|
|
1685
|
|
|
1686 #ifdef LISP_FLOAT_TYPE
|
|
|
1687 DEFVAR_LISP ("float-output-format", &Vfloat_output_format /*
|
|
|
1688 The format descriptor string that lisp uses to print floats.
|
|
|
1689 This is a %-spec like those accepted by `printf' in C,
|
|
|
1690 but with some restrictions. It must start with the two characters `%.'.
|
|
|
1691 After that comes an integer precision specification,
|
|
|
1692 and then a letter which controls the format.
|
|
|
1693 The letters allowed are `e', `f' and `g'.
|
|
|
1694 Use `e' for exponential notation "DIG.DIGITSeEXPT"
|
|
|
1695 Use `f' for decimal point notation "DIGITS.DIGITS".
|
|
|
1696 Use `g' to choose the shorter of those two formats for the number at hand.
|
|
|
1697 The precision in any of these cases is the number of digits following
|
|
|
1698 the decimal point. With `f', a precision of 0 means to omit the
|
|
|
1699 decimal point. 0 is not allowed with `f' or `g'.
|
|
|
1700
|
|
|
1701 A value of nil means to use `%.16g'.
|
|
|
1702
|
|
|
1703 Regardless of the value of `float-output-format', a floating point number
|
|
|
1704 will never be printed in such a way that it is ambiguous with an integer;
|
|
|
1705 that is, a floating-point number will always be printed with a decimal
|
|
|
1706 point and/or an exponent, even if the digits following the decimal point
|
|
|
1707 are all zero. This is to preserve read-equivalence.
|
|
|
1708 */ );
|
|
|
1709 Vfloat_output_format = Qnil;
|
|
|
1710 #endif /* LISP_FLOAT_TYPE */
|
|
|
1711
|
|
|
1712 DEFVAR_LISP ("print-length", &Vprint_length /*
|
|
|
1713 Maximum length of list or vector to print before abbreviating.
|
|
|
1714 A value of nil means no limit.
|
|
|
1715 */ );
|
|
|
1716 Vprint_length = Qnil;
|
|
|
1717
|
|
|
1718 DEFVAR_LISP ("print-string-length", &Vprint_string_length /*
|
|
|
1719 Maximum length of string to print before abbreviating.
|
|
|
1720 A value of nil means no limit.
|
|
|
1721 */ );
|
|
|
1722 Vprint_string_length = Qnil;
|
|
|
1723
|
|
|
1724 DEFVAR_LISP ("print-level", &Vprint_level /*
|
|
|
1725 Maximum depth of list nesting to print before abbreviating.
|
|
|
1726 A value of nil means no limit.
|
|
|
1727 */ );
|
|
|
1728 Vprint_level = Qnil;
|
|
|
1729
|
|
|
1730 DEFVAR_BOOL ("print-escape-newlines", &print_escape_newlines /*
|
|
|
1731 Non-nil means print newlines in strings as backslash-n.
|
|
|
1732 */ );
|
|
|
1733 print_escape_newlines = 0;
|
|
|
1734
|
|
|
1735 DEFVAR_BOOL ("print-readably", &print_readably /*
|
|
|
1736 If non-nil, then all objects will be printed in a readable form.
|
|
|
1737 If an object has no readable representation, then an error is signalled.
|
|
|
1738 When print-readably is true, compiled-function objects will be written in
|
|
|
1739 #[...] form instead of in #<compiled-function [...]> form, and two-element
|
|
|
1740 lists of the form (quote object) will be written as the equivalent 'object.
|
|
|
1741 Do not SET this variable; bind it instead.
|
|
|
1742 */ );
|
|
|
1743 print_readably = 0;
|
|
|
1744
|
|
|
1745 /* #### I think this should default to t. But we'd better wait
|
|
|
1746 until we see that it works out. */
|
|
|
1747 DEFVAR_LISP ("print-gensym", &Vprint_gensym /*
|
|
|
1748 If non-nil, then uninterned symbols will be printed specially.
|
|
|
1749 Uninterned symbols are those which are not present in `obarray', that is,
|
|
|
1750 those which were made with `make-symbol' or by calling `intern' with a
|
|
|
1751 second argument.
|
|
|
1752
|
|
|
1753 When print-gensym is true, such symbols will be preceded by "#:",
|
|
|
1754 which causes the reader to create a new symbol instead of interning
|
|
|
1755 and returning an existing one. Beware: the #: syntax creates a new
|
|
|
1756 symbol each time it is seen, so if you print an object which contains
|
|
|
1757 two pointers to the same uninterned symbol, `read' will not duplicate
|
|
|
1758 that structure.
|
|
|
1759
|
|
|
1760 If the value of `print-gensym' is a cons cell, then in addition
|
|
|
1761 refrain from clearing `print-gensym-alist' on entry to and exit from
|
|
|
1762 printing functions, so that the use of #...# and #...= can carry over
|
|
|
1763 for several separately printed objects.
|
|
|
1764 */ );
|
|
|
1765 Vprint_gensym = Qnil;
|
|
|
1766
|
|
|
1767 DEFVAR_LISP ("print-gensym-alist", &Vprint_gensym_alist /*
|
|
|
1768 Association list of elements (GENSYM . N) to guide use of #N# and #N=.
|
|
|
1769 In each element, GENSYM is an uninterned symbol that has been associated
|
|
|
1770 with #N= for the specified value of N.
|
|
|
1771 */ );
|
|
|
1772 Vprint_gensym_alist = Qnil;
|
|
|
1773
|
|
|
1774 DEFVAR_LISP ("print-message-label", &Vprint_message_label /*
|
|
|
1775 Label for minibuffer messages created with `print'. This should
|
|
|
1776 generally be bound with `let' rather than set. (See `display-message'.)
|
|
|
1777 */ );
|
|
|
1778 Vprint_message_label = Qprint;
|
|
|
1779 }
|
