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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 #ifndef standalone
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32 #include "backtrace.h"
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33 #include "buffer.h"
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34 #include "bytecode.h"
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35 #include "console-tty.h"
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36 #include "console-stream.h"
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37 #include "extents.h"
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38 #include "frame.h"
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39 #include "emacsfns.h"
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40 #include "insdel.h"
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41 #include "lstream.h"
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42
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43 #endif /* not standalone */
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44
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45 Lisp_Object Vstandard_output, Qstandard_output;
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46
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47 /* The subroutine object for external-debugging-output is kept here
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48 for the convenience of the debugger. */
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49 Lisp_Object Qexternal_debugging_output;
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50 Lisp_Object Qalternate_debugging_output;
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51
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52 /* Avoid actual stack overflow in print. */
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53 static int print_depth;
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54
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55 /* Maximum length of list or vector to print in full; noninteger means
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56 effectively infinity */
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57
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58 Lisp_Object Vprint_length;
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59 Lisp_Object Qprint_length;
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60
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61 /* Maximum length of string to print in full; noninteger means
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62 effectively infinity */
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63
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64 Lisp_Object Vprint_string_length;
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65 Lisp_Object Qprint_string_length;
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66
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67 /* Maximum depth of list to print in full; noninteger means
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68 effectively infinity. */
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69
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70 Lisp_Object Vprint_level;
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71
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72 /* Label to use when making echo-area messages. */
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73
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74 Lisp_Object Vprint_message_label;
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75
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76 /* Nonzero means print newlines in strings as \n. */
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77
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78 int print_escape_newlines;
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79 int print_readably;
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80 int print_gensym;
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81
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82 Lisp_Object Qprint_escape_newlines;
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83 Lisp_Object Qprint_readably;
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84
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85 /* Force immediate output of all printed data. Used for debugging. */
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86 int print_unbuffered;
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87
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88 FILE *termscript; /* Stdio stream being used for copy of all output. */
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89
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90
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91
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92 int stdout_needs_newline;
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93
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94 /* Write a string (in internal format) to stdio stream STREAM. */
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95
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96 void
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97 write_string_to_stdio_stream (FILE *stream, struct console *con,
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98 CONST Bufbyte *str,
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99 Bytecount offset, Bytecount len,
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100 enum external_data_format fmt)
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101 {
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102 int extlen;
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103 CONST Extbyte *extptr;
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104
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105 GET_CHARPTR_EXT_DATA_ALLOCA (str + offset, len, fmt, extptr, extlen);
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106 if (stream)
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107 fwrite (extptr, 1, extlen, stream);
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108 else
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109 {
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110 assert (CONSOLE_TTY_P (con));
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111 Lstream_write (XLSTREAM (CONSOLE_TTY_DATA (con)->outstream),
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112 extptr, extlen);
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113 }
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114 if (stream == stdout || stream == stderr ||
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115 (!stream && CONSOLE_TTY_DATA (con)->is_stdio))
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116 {
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117 if (termscript)
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118 {
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119 fwrite (extptr, 1, extlen, termscript);
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120 fflush (termscript);
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121 }
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122 stdout_needs_newline = (extptr[extlen - 1] != '\n');
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123 }
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124 }
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125
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126 /* Write a string to the output location specified in FUNCTION.
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127 Arguments NONRELOC, RELOC, OFFSET, and LEN are as in
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128 buffer_insert_string_1() in insdel.c. */
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129
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130 static void
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131 output_string (Lisp_Object function, CONST Bufbyte *nonreloc,
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132 Lisp_Object reloc, Bytecount offset, Bytecount len)
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133 {
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134 /* This function can GC */
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135 Charcount ccoff, cclen;
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136 /* We change the value of nonreloc (fetching it from reloc as
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137 necessary), but we don't want to pass this changed value on to
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138 other functions that take both a nonreloc and a reloc, or things
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139 may get confused and an assertion failure in
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140 fixup_internal_substring() may get triggered. */
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141 CONST Bufbyte *newnonreloc = nonreloc;
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142 struct gcpro gcpro1, gcpro2;
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143
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144 /* Emacs won't print whilst GCing, but an external debugger might */
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145 if (gc_in_progress) return;
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146
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147 /* Perhaps not necessary but probably safer. */
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148 GCPRO2 (function, reloc);
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149
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150 fixup_internal_substring (newnonreloc, reloc, offset, &len);
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151
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152 if (STRINGP (reloc))
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16
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153 newnonreloc = XSTRING_DATA (reloc);
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0
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154
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155 ccoff = bytecount_to_charcount (newnonreloc, offset);
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156 cclen = bytecount_to_charcount (newnonreloc + offset, len);
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157
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158 if (LSTREAMP (function))
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159 {
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160 /* Lstream_write() could easily cause GC inside of it, if the
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161 stream is a print-stream. (It will call output_string()
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162 recursively.) This is probably the fastest way to fix this
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163 problem. (alloca() is very fast on machines that have it
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164 built-in, and you avoid some nasty problems with recursion
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165 that could result from using a static buffer somewhere.)
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166
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167 The other possibility is to inhibit GC, but that of course
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168 would require an unwind-protect, which is usually a lot
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169 slower than the small amount of memcpy()ing that happens
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170 here. */
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171 if (STRINGP (reloc))
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172 {
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173 Bufbyte *copied = (Bufbyte *) alloca (len);
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174 memcpy (copied, newnonreloc + offset, len);
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175 Lstream_write (XLSTREAM (function), copied, len);
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176 }
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177 else
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178 Lstream_write (XLSTREAM (function), newnonreloc + offset, len);
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179
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180 if (print_unbuffered)
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181 Lstream_flush (XLSTREAM (function));
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182 }
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183
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184 #ifndef standalone
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185 else if (BUFFERP (function))
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186 {
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187 CHECK_LIVE_BUFFER (function);
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188 buffer_insert_string (XBUFFER (function), nonreloc, reloc, offset, len);
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189 }
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190 else if (MARKERP (function))
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191 {
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192 /* marker_position will err if marker doesn't point anywhere */
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193 Bufpos spoint = marker_position (function);
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194
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195 buffer_insert_string_1 (XBUFFER (Fmarker_buffer (function)),
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196 spoint, nonreloc, reloc, offset, len,
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197 0);
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198 Fset_marker (function, make_int (spoint + cclen),
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199 Fmarker_buffer (function));
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200 }
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201 else if (FRAMEP (function))
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202 {
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203 struct frame *f = XFRAME (function);
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204 if (!EQ (Vprint_message_label, echo_area_status (f)))
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205 clear_echo_area_from_print (f, Qnil, 1);
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206 echo_area_append (f, nonreloc, reloc, offset, len, Vprint_message_label);
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207 }
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208 #endif /* not standalone */
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209 else if (EQ (function, Qt) || EQ (function, Qnil))
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210 {
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211 write_string_to_stdio_stream (stdout, 0, newnonreloc, offset, len,
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16
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212 FORMAT_TERMINAL);
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0
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213 }
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214 else
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215 {
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216 Charcount iii;
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217
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218 for (iii = ccoff; iii < cclen + ccoff; iii++)
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219 {
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220 call1 (function,
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221 make_char (charptr_emchar_n (newnonreloc, iii)));
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222 if (STRINGP (reloc))
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16
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223 newnonreloc = XSTRING_DATA (reloc);
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0
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224 }
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225 }
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226
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227 UNGCPRO;
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228 }
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229
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230 struct print_stream
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231 {
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232 FILE *file;
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233 Lisp_Object fun;
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234 };
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235
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236 #define get_print_stream(stream) \
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237 ((struct print_stream *) Lstream_data (stream))
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238
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239 DEFINE_LSTREAM_IMPLEMENTATION ("print", lstream_print,
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240 sizeof (struct print_stream));
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241
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242 static Lisp_Object
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243 make_print_output_stream (FILE *file, Lisp_Object fun)
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244 {
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245 Lstream *str = Lstream_new (lstream_print, "w");
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246 struct print_stream *ps = get_print_stream (str);
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247 Lisp_Object val = Qnil;
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248
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249 Lstream_set_character_mode (str);
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250 ps->file = file;
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251 ps->fun = fun;
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252 XSETLSTREAM (val, str);
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253 return val;
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254 }
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255
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256 /* #### This isn't being used anywhere at the moment. Is it supposed
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257 to be? */
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258 #if 0
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259 static void
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260 reset_print_stream (Lstream *str, FILE *file, Lisp_Object fun)
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261 {
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262 struct print_stream *ps = get_print_stream (str);
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263
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264 Lstream_reopen (str);
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265 ps->file = file;
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266 ps->fun = fun;
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267 }
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268 #endif
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269
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270 static Lisp_Object
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271 print_marker (Lisp_Object obj, void (*markobj) (Lisp_Object))
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272 {
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273 return get_print_stream (XLSTREAM (obj))->fun;
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274 }
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275
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276 static int
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277 print_writer (Lstream *stream, CONST unsigned char *data, int size)
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278 {
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279 struct print_stream *ps = get_print_stream (stream);
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280
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281 if (ps->file)
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282 {
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283 write_string_to_stdio_stream (ps->file, 0, data, 0, size,
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16
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284 FORMAT_TERMINAL);
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0
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285 /* Make sure it really gets written now. */
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286 if (print_unbuffered)
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287 fflush (ps->file);
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288 }
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289 else
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290 output_string (ps->fun, data, Qnil, 0, size);
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291 return size;
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292 }
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293
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294 static Lisp_Object
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295 canonicalize_printcharfun (Lisp_Object printcharfun)
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296 {
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297 if (NILP (printcharfun))
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298 printcharfun = Vstandard_output;
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299
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300 if (EQ (printcharfun, Qt) || NILP (printcharfun))
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301 {
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302 #ifndef standalone
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303 printcharfun = Fselected_frame (Qnil); /* print to minibuffer */
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304 #endif
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305 }
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306 return (printcharfun);
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307 }
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308
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309
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310 static Lisp_Object
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311 print_prepare (Lisp_Object printcharfun)
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312 {
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313 FILE *stdio_stream = 0;
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314
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315 /* Emacs won't print whilst GCing, but an external debugger might */
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316 if (gc_in_progress)
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317 return (Qnil);
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318
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319 printcharfun = canonicalize_printcharfun (printcharfun);
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320 if (EQ (printcharfun, Qnil))
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321 {
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322 stdio_stream = stdout;
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323 }
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324 #if 0 /* Don't bother */
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325 else if (SUBRP (indirect_function (printcharfun, 0))
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326 && (XSUBR (indirect_function (printcharfun, 0))
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327 == Sexternal_debugging_output))
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328 {
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329 stdio_stream = stderr;
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330 }
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331 #endif
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332
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333 return make_print_output_stream (stdio_stream, printcharfun);
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334 }
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335
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336 static void
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337 print_finish (Lisp_Object stream)
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338 {
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339 /* Emacs won't print whilst GCing, but an external debugger might */
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340 if (gc_in_progress)
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341 return;
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342
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343 Lstream_delete (XLSTREAM (stream));
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344 }
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345
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346 #if 1 /* Prefer space over "speed" */
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347 #define write_char_internal(string_of_length_1, stream) \
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348 write_string_1 ((CONST Bufbyte *) (string_of_length_1), 1, (stream))
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349 #else
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350 #define write_char_internal(string_of_length_1, stream) \
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351 output_string ((stream), (CONST Bufbyte *) (string_of_length_1), Qnil, 0, 1)
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352 #endif
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353
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354 /* NOTE: Do not call this with the data of a Lisp_String,
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355 * as printcharfun might cause a GC, which might cause
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356 * the string's data to be relocated.
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357 * Use print_object_internal (string, printcharfun, 0)
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358 * to princ a Lisp_String
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359 * Note: "stream" should be the result of "canonicalize_printcharfun"
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360 * (ie Qnil means stdout, not Vstandard_output, etc)
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361 */
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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 assert (size >= 0);
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367 output_string (stream, str, Qnil, 0, size);
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368 }
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369
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370 void
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371 write_c_string (CONST char *str, Lisp_Object stream)
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372 {
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373 /* This function can GC */
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374 write_string_1 ((CONST Bufbyte *) str, strlen (str), stream);
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375 }
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376
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377
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378 DEFUN ("write-char", Fwrite_char, Swrite_char, 1, 2, 0 /*
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379 Output character CH to stream STREAM.
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380 STREAM defaults to the value of `standard-output' (which see).
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381 */ )
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382 (ch, stream)
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383 Lisp_Object ch, stream;
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384 {
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385 /* This function can GC */
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386 Bufbyte str[MAX_EMCHAR_LEN];
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387 Bytecount len;
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388
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389 CHECK_CHAR_COERCE_INT (ch);
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390 len = set_charptr_emchar (str, XCHAR (ch));
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391 output_string (canonicalize_printcharfun (stream), str, Qnil, 0, len);
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392 return ch;
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393 }
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394
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395 #ifndef standalone
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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;
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402 Lisp_Object buf;
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403
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404 #ifdef I18N3
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405 /* #### This function should accept a Lisp_Object instead of a char *,
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406 so that proper translation on the buffer name can occur. */
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407 #endif
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408
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409 Fset_buffer (Fget_buffer_create (build_string (bufname)));
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410
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411 current_buffer->read_only = Qnil;
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412 Ferase_buffer (Fcurrent_buffer ());
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413
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414 XSETBUFFER (buf, current_buffer);
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415 specbind (Qstandard_output, buf);
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416
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417 set_buffer_internal (old);
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418 }
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419
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420 Lisp_Object
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|
|
421 internal_with_output_to_temp_buffer (CONST char *bufname,
|
|
|
422 Lisp_Object (*function) (Lisp_Object arg),
|
|
|
423 Lisp_Object arg,
|
|
|
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
|
|
|
443 DEFUN ("with-output-to-temp-buffer", Fwith_output_to_temp_buffer, Swith_output_to_temp_buffer,
|
|
|
444 1, UNEVALLED, 0 /*
|
|
|
445 Bind `standard-output' to buffer BUFNAME, eval BODY, then show that buffer.
|
|
|
446 The buffer is cleared out initially, and marked as unmodified when done.
|
|
|
447 All output done by BODY is inserted in that buffer by default.
|
|
|
448 The buffer is displayed in another window, but not selected.
|
|
|
449 The value of the last form in BODY is returned.
|
|
|
450 If BODY does not finish normally, the buffer BUFNAME is not displayed.
|
|
|
451
|
|
|
452 If variable `temp-buffer-show-function' is non-nil, call it at the end
|
|
|
453 to get the buffer displayed. It gets one argument, the buffer to display.
|
|
|
454 */ )
|
|
|
455 (args)
|
|
|
456 Lisp_Object args;
|
|
|
457 {
|
|
|
458 /* This function can GC */
|
|
|
459 struct gcpro gcpro1;
|
|
|
460 Lisp_Object name;
|
|
|
461 int speccount = specpdl_depth ();
|
|
|
462 Lisp_Object buf, val;
|
|
|
463
|
|
|
464 #ifdef I18N3
|
|
|
465 /* #### should set the buffer to be translating. See print_internal(). */
|
|
|
466 #endif
|
|
|
467
|
|
|
468 GCPRO1 (args);
|
|
|
469 name = Feval (Fcar (args));
|
|
|
470 UNGCPRO;
|
|
|
471
|
|
|
472 CHECK_STRING (name);
|
|
16
|
473 temp_output_buffer_setup ((char *) XSTRING_DATA (name));
|
|
0
|
474 buf = Vstandard_output;
|
|
|
475
|
|
|
476 val = Fprogn (Fcdr (args));
|
|
|
477
|
|
|
478 temp_output_buffer_show (buf, Qnil);
|
|
|
479
|
|
|
480 return unbind_to (speccount, val);
|
|
|
481 }
|
|
|
482 #endif /* not standalone */
|
|
|
483
|
|
|
484 DEFUN ("terpri", Fterpri, Sterpri, 0, 1, 0 /*
|
|
|
485 Output a newline to STREAM.
|
|
|
486 If STREAM is omitted or nil, the value of `standard-output' is used.
|
|
|
487 */ )
|
|
|
488 (stream)
|
|
|
489 Lisp_Object stream;
|
|
|
490 {
|
|
|
491 /* This function can GC */
|
|
|
492 Bufbyte str[1];
|
|
|
493 str[0] = '\n';
|
|
|
494 output_string (canonicalize_printcharfun (stream), str, Qnil, 0, 1);
|
|
|
495 return Qt;
|
|
|
496 }
|
|
|
497
|
|
|
498 DEFUN ("prin1", Fprin1, Sprin1, 1, 2, 0 /*
|
|
|
499 Output the printed representation of OBJECT, any Lisp object.
|
|
|
500 Quoting characters are printed when needed to make output that `read'
|
|
|
501 can handle, whenever this is possible.
|
|
|
502 Output stream is STREAM, or value of `standard-output' (which see).
|
|
|
503 */ )
|
|
|
504 (object, stream)
|
|
|
505 Lisp_Object object, stream;
|
|
|
506 {
|
|
|
507 /* This function can GC */
|
|
|
508 Lisp_Object the_stream = Qnil;
|
|
|
509 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
510
|
|
|
511 GCPRO3 (object, stream, the_stream);
|
|
|
512 print_depth = 0;
|
|
|
513 the_stream = print_prepare (stream);
|
|
|
514 print_internal (object, the_stream, 1);
|
|
|
515 print_finish (the_stream);
|
|
|
516 UNGCPRO;
|
|
|
517 return object;
|
|
|
518 }
|
|
|
519
|
|
|
520 /* a buffer which is used to hold output being built by prin1-to-string */
|
|
|
521 Lisp_Object Vprin1_to_string_buffer;
|
|
|
522
|
|
|
523 DEFUN ("prin1-to-string", Fprin1_to_string, Sprin1_to_string, 1, 2, 0 /*
|
|
|
524 Return a string containing the printed representation of OBJECT,
|
|
|
525 any Lisp object. Quoting characters are used when needed to make output
|
|
|
526 that `read' can handle, whenever this is possible, unless the optional
|
|
|
527 second argument NOESCAPE is non-nil.
|
|
|
528 */ )
|
|
|
529 (object, noescape)
|
|
|
530 Lisp_Object object, noescape;
|
|
|
531 {
|
|
|
532 /* This function can GC */
|
|
|
533 Lisp_Object old = Fcurrent_buffer ();
|
|
|
534 struct buffer *out = XBUFFER (Vprin1_to_string_buffer);
|
|
|
535 Lisp_Object stream = Qnil;
|
|
|
536 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
537
|
|
|
538 GCPRO3 (object, old, stream);
|
|
|
539 stream = print_prepare (Vprin1_to_string_buffer);
|
|
|
540 set_buffer_internal (out);
|
|
|
541 Ferase_buffer (Fcurrent_buffer ());
|
|
|
542 print_depth = 0;
|
|
|
543 print_internal (object, stream, NILP (noescape));
|
|
|
544 print_finish (stream);
|
|
|
545 stream = Qnil; /* No GC surprises! */
|
|
|
546 object = make_string_from_buffer (out,
|
|
|
547 BUF_BEG (out),
|
|
|
548 BUF_Z (out) - 1);
|
|
|
549 Ferase_buffer (Fcurrent_buffer ());
|
|
|
550 Fset_buffer (old);
|
|
|
551 UNGCPRO;
|
|
|
552 return (object);
|
|
|
553 }
|
|
|
554
|
|
|
555 DEFUN ("princ", Fprinc, Sprinc, 1, 2, 0 /*
|
|
|
556 Output the printed representation of OBJECT, any Lisp object.
|
|
|
557 No quoting characters are used; no delimiters are printed around
|
|
|
558 the contents of strings.
|
|
|
559 Output stream is STREAM, or value of standard-output (which see).
|
|
|
560 */ )
|
|
|
561 (obj, stream)
|
|
|
562 Lisp_Object obj, stream;
|
|
|
563 {
|
|
|
564 /* This function can GC */
|
|
|
565 Lisp_Object the_stream = Qnil;
|
|
|
566 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
567
|
|
|
568 GCPRO3 (obj, stream, the_stream);
|
|
|
569 the_stream = print_prepare (stream);
|
|
|
570 print_depth = 0;
|
|
|
571 print_internal (obj, the_stream, 0);
|
|
|
572 print_finish (the_stream);
|
|
|
573 UNGCPRO;
|
|
|
574 return (obj);
|
|
|
575 }
|
|
|
576
|
|
|
577 DEFUN ("print", Fprint, Sprint, 1, 2, 0 /*
|
|
|
578 Output the printed representation of OBJECT, with newlines around it.
|
|
|
579 Quoting characters are printed when needed to make output that `read'
|
|
|
580 can handle, whenever this is possible.
|
|
|
581 Output stream is STREAM, or value of `standard-output' (which see).
|
|
|
582 */ )
|
|
|
583 (obj, stream)
|
|
|
584 Lisp_Object obj, stream;
|
|
|
585 {
|
|
|
586 /* This function can GC */
|
|
|
587 Lisp_Object the_stream = Qnil;
|
|
|
588 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
589
|
|
|
590 GCPRO3 (obj, stream, the_stream);
|
|
|
591 the_stream = print_prepare (stream);
|
|
|
592 print_depth = 0;
|
|
|
593 write_char_internal ("\n", the_stream);
|
|
|
594 print_internal (obj, the_stream, 1);
|
|
|
595 write_char_internal ("\n", the_stream);
|
|
|
596 print_finish (the_stream);
|
|
|
597 UNGCPRO;
|
|
|
598 return obj;
|
|
|
599 }
|
|
|
600
|
|
|
601 #ifdef LISP_FLOAT_TYPE
|
|
|
602
|
|
|
603 Lisp_Object Vfloat_output_format;
|
|
|
604 Lisp_Object Qfloat_output_format;
|
|
|
605
|
|
|
606 void
|
|
|
607 float_to_string (char *buf, double data)
|
|
|
608 /*
|
|
|
609 * This buffer should be at least as large as the max string size of the
|
|
|
610 * largest float, printed in the biggest notation. This is undoubtably
|
|
|
611 * 20d float_output_format, with the negative of the C-constant "HUGE"
|
|
|
612 * from <math.h>.
|
|
|
613 *
|
|
|
614 * On the vax the worst case is -1e38 in 20d format which takes 61 bytes.
|
|
|
615 *
|
|
|
616 * I assume that IEEE-754 format numbers can take 329 bytes for the worst
|
|
|
617 * case of -1e307 in 20d float_output_format. What is one to do (short of
|
|
|
618 * re-writing _doprnt to be more sane)?
|
|
|
619 * -wsr
|
|
|
620 */
|
|
|
621 {
|
|
|
622 Bufbyte *cp, c;
|
|
|
623 int width;
|
|
|
624
|
|
|
625 if (NILP (Vfloat_output_format)
|
|
|
626 || !STRINGP (Vfloat_output_format))
|
|
|
627 lose:
|
|
|
628 sprintf (buf, "%.16g", data);
|
|
|
629 else /* oink oink */
|
|
|
630 {
|
|
|
631 /* Check that the spec we have is fully valid.
|
|
|
632 This means not only valid for printf,
|
|
|
633 but meant for floats, and reasonable. */
|
|
16
|
634 cp = XSTRING_DATA (Vfloat_output_format);
|
|
0
|
635
|
|
|
636 if (cp[0] != '%')
|
|
|
637 goto lose;
|
|
|
638 if (cp[1] != '.')
|
|
|
639 goto lose;
|
|
|
640
|
|
|
641 cp += 2;
|
|
|
642 for (width = 0; (c = *cp, isdigit (c)); cp++)
|
|
|
643 {
|
|
|
644 width *= 10;
|
|
|
645 width += c - '0';
|
|
|
646 }
|
|
|
647
|
|
|
648 if (*cp != 'e' && *cp != 'f' && *cp != 'g' && *cp != 'E' && *cp != 'G')
|
|
|
649 goto lose;
|
|
|
650
|
|
|
651 if (width < (int) (*cp != 'e' && *cp != 'E') || width > DBL_DIG)
|
|
|
652 goto lose;
|
|
|
653
|
|
|
654 if (cp[1] != 0)
|
|
|
655 goto lose;
|
|
|
656
|
|
16
|
657 sprintf (buf, (char *) XSTRING_DATA (Vfloat_output_format),
|
|
0
|
658 data);
|
|
|
659 }
|
|
|
660
|
|
|
661 /* added by jwz: don't allow "1.0" to print as "1"; that destroys
|
|
|
662 the read-equivalence of lisp objects. (* x 1) and (* x 1.0) do
|
|
|
663 not do the same thing, so it's important that the printed
|
|
|
664 representation of that form not be corrupted by the printer.
|
|
|
665 */
|
|
|
666 {
|
|
|
667 Bufbyte *s = (Bufbyte *) buf; /* don't use signed chars here!
|
|
|
668 isdigit() can't hack them! */
|
|
|
669 if (*s == '-') s++;
|
|
|
670 for (; *s; s++)
|
|
|
671 /* if there's a non-digit, then there is a decimal point, or
|
|
|
672 it's in exponential notation, both of which are ok. */
|
|
|
673 if (!isdigit (*s))
|
|
|
674 goto DONE_LABEL;
|
|
|
675 /* otherwise, we need to hack it. */
|
|
|
676 *s++ = '.';
|
|
|
677 *s++ = '0';
|
|
|
678 *s = 0;
|
|
|
679 }
|
|
|
680 DONE_LABEL:
|
|
|
681
|
|
|
682 /* Some machines print "0.4" as ".4". I don't like that. */
|
|
|
683 if (buf [0] == '.' || (buf [0] == '-' && buf [1] == '.'))
|
|
|
684 {
|
|
|
685 int i;
|
|
|
686 for (i = strlen (buf) + 1; i >= 0; i--)
|
|
|
687 buf [i+1] = buf [i];
|
|
|
688 buf [(buf [0] == '-' ? 1 : 0)] = '0';
|
|
|
689 }
|
|
|
690 }
|
|
|
691 #endif /* LISP_FLOAT_TYPE */
|
|
|
692
|
|
|
693 static void
|
|
|
694 print_vector_internal (CONST char *start, CONST char *end,
|
|
|
695 Lisp_Object obj,
|
|
|
696 Lisp_Object printcharfun, int escapeflag)
|
|
|
697 {
|
|
|
698 /* This function can GC */
|
|
|
699 int i;
|
|
|
700 int len = vector_length (XVECTOR (obj));
|
|
|
701 int last = len;
|
|
|
702 struct gcpro gcpro1, gcpro2;
|
|
|
703 GCPRO2 (obj, printcharfun);
|
|
|
704
|
|
|
705 if (INTP (Vprint_length))
|
|
|
706 {
|
|
|
707 int max = XINT (Vprint_length);
|
|
|
708 if (max < len) last = max;
|
|
|
709 }
|
|
|
710
|
|
|
711 write_c_string (start, printcharfun);
|
|
|
712 for (i = 0; i < last; i++)
|
|
|
713 {
|
|
|
714 Lisp_Object elt = vector_data (XVECTOR (obj))[i];
|
|
|
715 if (i != 0) write_char_internal (" ", printcharfun);
|
|
|
716 print_internal (elt, printcharfun, escapeflag);
|
|
|
717 }
|
|
|
718 UNGCPRO;
|
|
|
719 if (last != len)
|
|
|
720 write_c_string (" ...", printcharfun);
|
|
|
721 write_c_string (end, printcharfun);
|
|
|
722 }
|
|
|
723
|
|
|
724 static void
|
|
|
725 default_object_printer (Lisp_Object obj, Lisp_Object printcharfun,
|
|
|
726 int escapeflag)
|
|
|
727 {
|
|
|
728 struct lcrecord_header *header =
|
|
|
729 (struct lcrecord_header *) XPNTR (obj);
|
|
|
730 char buf[200];
|
|
|
731
|
|
|
732 if (print_readably)
|
|
|
733 error ("printing unreadable object #<%s 0x%x>",
|
|
|
734 header->lheader.implementation->name, header->uid);
|
|
|
735
|
|
|
736 sprintf (buf, "#<%s 0x%x>", header->lheader.implementation->name,
|
|
|
737 header->uid);
|
|
|
738 write_c_string (buf, printcharfun);
|
|
|
739 }
|
|
|
740
|
|
|
741 void
|
|
|
742 internal_object_printer (Lisp_Object obj, Lisp_Object printcharfun,
|
|
|
743 int escapeflag)
|
|
|
744 {
|
|
|
745 char buf[200];
|
|
|
746 sprintf (buf, "#<INTERNAL OBJECT (XEmacs bug?) (%s) 0x%x>",
|
|
|
747 XRECORD_LHEADER (obj)->implementation->name,
|
|
|
748 (EMACS_INT) XPNTR (obj));
|
|
|
749 write_c_string (buf, printcharfun);
|
|
|
750 }
|
|
|
751
|
|
|
752 void
|
|
|
753 print_internal (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
754 {
|
|
|
755 /* This function can GC */
|
|
|
756 char buf[256];
|
|
|
757
|
|
|
758 QUIT;
|
|
|
759
|
|
|
760 /* Emacs won't print whilst GCing, but an external debugger might */
|
|
|
761 if (gc_in_progress) return;
|
|
|
762
|
|
|
763 #ifdef I18N3
|
|
|
764 /* #### Both input and output streams should have a flag associated
|
|
|
765 with them indicating whether output to that stream, or strings
|
|
|
766 read from the stream, get translated using Fgettext(). Such a
|
|
|
767 stream is called a "translating stream". For the minibuffer and
|
|
|
768 external-debugging-output this is always true on output, and
|
|
|
769 with-output-to-temp-buffer sets the flag to true for the buffer
|
|
|
770 it creates. This flag should also be user-settable. Perhaps it
|
|
|
771 should be split up into two flags, one for input and one for
|
|
|
772 output. */
|
|
|
773 #endif
|
|
|
774
|
|
|
775 print_depth++;
|
|
|
776
|
|
|
777 if (print_depth > 200)
|
|
|
778 error ("Apparently circular structure being printed");
|
|
|
779
|
|
|
780 switch (XTYPE (obj))
|
|
|
781 {
|
|
|
782 case Lisp_Int:
|
|
|
783 {
|
|
|
784 sprintf (buf, "%d", XINT (obj));
|
|
|
785 write_c_string (buf, printcharfun);
|
|
|
786 break;
|
|
|
787 }
|
|
|
788
|
|
|
789 case Lisp_String:
|
|
|
790 {
|
|
16
|
791 Bytecount size = XSTRING_LENGTH (obj);
|
|
0
|
792 struct gcpro gcpro1, gcpro2;
|
|
|
793 int max = size;
|
|
|
794 GCPRO2 (obj, printcharfun);
|
|
|
795
|
|
|
796 if (INTP (Vprint_string_length) &&
|
|
|
797 XINT (Vprint_string_length) < max)
|
|
|
798 max = XINT (Vprint_string_length);
|
|
|
799 if (max < 0)
|
|
|
800 max = 0;
|
|
|
801
|
|
|
802 /* !!#### This handles MAX incorrectly for Mule. */
|
|
|
803 if (!escapeflag)
|
|
|
804 {
|
|
|
805 /* This deals with GC-relocation */
|
|
|
806 output_string (printcharfun, 0, obj, 0, max);
|
|
|
807 if (max < size)
|
|
|
808 write_c_string (" ...", printcharfun);
|
|
|
809 }
|
|
|
810 else
|
|
|
811 {
|
|
|
812 Bytecount i;
|
|
|
813 struct Lisp_String *s = XSTRING (obj);
|
|
|
814 Bytecount last = 0;
|
|
|
815
|
|
|
816 write_char_internal ("\"", printcharfun);
|
|
|
817 for (i = 0; i < max; i++)
|
|
|
818 {
|
|
|
819 Bufbyte ch = string_byte (s, i);
|
|
|
820 if (ch == '\"' || ch == '\\'
|
|
|
821 || (ch == '\n' && print_escape_newlines))
|
|
|
822 {
|
|
|
823 if (i > last)
|
|
|
824 {
|
|
|
825 output_string (printcharfun, 0, obj, last,
|
|
|
826 i - last);
|
|
|
827 }
|
|
|
828 if (ch == '\n')
|
|
|
829 {
|
|
|
830 write_c_string ("\\n", printcharfun);
|
|
|
831 }
|
|
|
832 else
|
|
|
833 {
|
|
|
834 write_char_internal ("\\", printcharfun);
|
|
|
835 /* This is correct for Mule because the
|
|
|
836 character is either \ or " */
|
|
|
837 write_char_internal ((char *) (string_data (s) + i),
|
|
|
838 printcharfun);
|
|
|
839 }
|
|
|
840 last = i + 1;
|
|
|
841 }
|
|
|
842 }
|
|
|
843 if (max > last)
|
|
|
844 {
|
|
|
845 output_string (printcharfun, 0, obj, last,
|
|
|
846 max - last);
|
|
|
847 }
|
|
|
848 if (max < size)
|
|
|
849 write_c_string (" ...", printcharfun);
|
|
|
850 write_char_internal ("\"", printcharfun);
|
|
|
851 }
|
|
|
852 UNGCPRO;
|
|
|
853 break;
|
|
|
854 }
|
|
|
855
|
|
|
856 case Lisp_Cons:
|
|
|
857 {
|
|
|
858 struct gcpro gcpro1, gcpro2;
|
|
|
859
|
|
|
860 /* If deeper than spec'd depth, print placeholder. */
|
|
|
861 if (INTP (Vprint_level)
|
|
|
862 && print_depth > XINT (Vprint_level))
|
|
|
863 {
|
|
|
864 write_c_string ("...", printcharfun);
|
|
|
865 break;
|
|
|
866 }
|
|
|
867
|
|
|
868 /* If print_readably is on, print (quote -foo-) as '-foo-
|
|
|
869 (Yeah, this should really be what print-pretty does, but we
|
|
|
870 don't have the rest of a pretty printer, and this actually
|
|
|
871 has non-negligible impact on size/speed of .elc files.)
|
|
|
872 */
|
|
|
873 if (print_readably &&
|
|
|
874 EQ (XCAR (obj), Qquote) &&
|
|
|
875 CONSP (XCDR (obj)) &&
|
|
|
876 NILP (XCDR (XCDR (obj))))
|
|
|
877 {
|
|
|
878 obj = XCAR (XCDR (obj));
|
|
|
879 GCPRO2 (obj, printcharfun);
|
|
|
880 write_char_internal ("'", printcharfun);
|
|
|
881 UNGCPRO;
|
|
|
882 print_internal (obj, printcharfun, escapeflag);
|
|
|
883 break;
|
|
|
884 }
|
|
|
885
|
|
|
886 GCPRO2 (obj, printcharfun);
|
|
|
887 write_char_internal ("(", printcharfun);
|
|
|
888 {
|
|
|
889 int i = 0;
|
|
|
890 int max = 0;
|
|
|
891
|
|
|
892 if (INTP (Vprint_length))
|
|
|
893 max = XINT (Vprint_length);
|
|
|
894 while (CONSP (obj))
|
|
|
895 {
|
|
|
896 if (i++)
|
|
|
897 write_char_internal (" ", printcharfun);
|
|
|
898 if (max && i > max)
|
|
|
899 {
|
|
|
900 write_c_string ("...", printcharfun);
|
|
|
901 break;
|
|
|
902 }
|
|
|
903 print_internal (Fcar (obj), printcharfun,
|
|
|
904 escapeflag);
|
|
|
905 obj = Fcdr (obj);
|
|
|
906 }
|
|
|
907 }
|
|
|
908 if (!NILP (obj) && !CONSP (obj))
|
|
|
909 {
|
|
|
910 write_c_string (" . ", printcharfun);
|
|
|
911 print_internal (obj, printcharfun, escapeflag);
|
|
|
912 }
|
|
|
913 UNGCPRO;
|
|
|
914 write_char_internal (")", printcharfun);
|
|
|
915 break;
|
|
|
916 }
|
|
|
917
|
|
|
918 #ifndef LRECORD_VECTOR
|
|
|
919 case Lisp_Vector:
|
|
|
920 {
|
|
|
921 /* If deeper than spec'd depth, print placeholder. */
|
|
|
922 if (INTP (Vprint_level)
|
|
|
923 && print_depth > XINT (Vprint_level))
|
|
|
924 {
|
|
|
925 write_c_string ("...", printcharfun);
|
|
|
926 break;
|
|
|
927 }
|
|
|
928
|
|
|
929 /* God intended that this be #(...), you know. */
|
|
|
930 print_vector_internal ("[", "]", obj, printcharfun, escapeflag);
|
|
|
931 break;
|
|
|
932 }
|
|
|
933 #endif /* !LRECORD_VECTOR */
|
|
|
934
|
|
|
935 #ifndef LRECORD_SYMBOL
|
|
|
936 case Lisp_Symbol:
|
|
|
937 {
|
|
|
938 print_symbol (obj, printcharfun, escapeflag);
|
|
|
939 break;
|
|
|
940 }
|
|
|
941 #endif /* !LRECORD_SYMBOL */
|
|
|
942
|
|
|
943 case Lisp_Record:
|
|
|
944 {
|
|
|
945 struct lrecord_header *lheader = XRECORD_LHEADER (obj);
|
|
|
946 struct gcpro gcpro1, gcpro2;
|
|
|
947
|
|
|
948 GCPRO2 (obj, printcharfun);
|
|
|
949 if (lheader->implementation->printer)
|
|
|
950 ((lheader->implementation->printer)
|
|
|
951 (obj, printcharfun, escapeflag));
|
|
|
952 else
|
|
|
953 default_object_printer (obj, printcharfun, escapeflag);
|
|
|
954 UNGCPRO;
|
|
|
955 break;
|
|
|
956 }
|
|
|
957
|
|
|
958 default:
|
|
|
959 {
|
|
|
960 /* We're in trouble if this happens!
|
|
|
961 Probably should just abort () */
|
|
|
962 if (print_readably)
|
|
|
963 error ("printing illegal data type #o%03o",
|
|
|
964 (int) XTYPE (obj));
|
|
|
965 write_c_string ("#<EMACS BUG: ILLEGAL DATATYPE ",
|
|
|
966 printcharfun);
|
|
|
967 sprintf (buf, "(#o%3o)", (int) XTYPE (obj));
|
|
|
968 write_c_string (buf, printcharfun);
|
|
|
969 write_c_string
|
|
|
970 (" Save your buffers immediately and please report this bug>",
|
|
|
971 printcharfun);
|
|
|
972 break;
|
|
|
973 }
|
|
|
974 }
|
|
|
975
|
|
|
976 print_depth--;
|
|
|
977 }
|
|
|
978
|
|
|
979 static void
|
|
|
980 print_compiled_function_internal (CONST char *start, CONST char *end,
|
|
|
981 Lisp_Object obj,
|
|
|
982 Lisp_Object printcharfun, int escapeflag)
|
|
|
983 {
|
|
|
984 /* This function can GC */
|
|
|
985 struct Lisp_Compiled_Function *b =
|
|
|
986 XCOMPILED_FUNCTION (obj); /* GC doesn't relocate */
|
|
|
987 int docp = b->flags.documentationp;
|
|
|
988 int intp = b->flags.interactivep;
|
|
|
989 struct gcpro gcpro1, gcpro2;
|
|
|
990 char buf[100];
|
|
|
991 GCPRO2 (obj, printcharfun);
|
|
|
992
|
|
|
993 write_c_string (start, printcharfun);
|
|
|
994 #ifdef COMPILED_FUNCTION_ANNOTATION_HACK
|
|
|
995 if (!print_readably)
|
|
|
996 {
|
|
|
997 Lisp_Object ann = compiled_function_annotation (b);
|
|
|
998 if (!NILP (ann))
|
|
|
999 {
|
|
|
1000 write_c_string ("(from ", printcharfun);
|
|
|
1001 print_internal (ann, printcharfun, 1);
|
|
|
1002 write_c_string (") ", printcharfun);
|
|
|
1003 }
|
|
|
1004 }
|
|
|
1005 #endif /* COMPILED_FUNCTION_ANNOTATION_HACK */
|
|
|
1006 /* COMPILED_ARGLIST = 0 */
|
|
|
1007 print_internal (b->arglist, printcharfun, escapeflag);
|
|
|
1008 /* COMPILED_BYTECODE = 1 */
|
|
|
1009 write_char_internal (" ", printcharfun);
|
|
|
1010 /* we don't really want to see that junk in the bytecode instructions. */
|
|
|
1011 if (STRINGP (b->bytecodes) && !print_readably)
|
|
|
1012 {
|
|
16
|
1013 sprintf (buf, "\"...(%ld)\"", (long) XSTRING_LENGTH (b->bytecodes));
|
|
0
|
1014 write_c_string (buf, printcharfun);
|
|
|
1015 }
|
|
|
1016 else
|
|
|
1017 print_internal (b->bytecodes, printcharfun, escapeflag);
|
|
|
1018 /* COMPILED_CONSTANTS = 2 */
|
|
|
1019 write_char_internal (" ", printcharfun);
|
|
|
1020 print_internal (b->constants, printcharfun, escapeflag);
|
|
|
1021 /* COMPILED_STACK_DEPTH = 3 */
|
|
|
1022 sprintf (buf, " %d", b->maxdepth);
|
|
|
1023 write_c_string (buf, printcharfun);
|
|
|
1024 /* COMPILED_DOC_STRING = 4 */
|
|
|
1025 if (docp || intp)
|
|
|
1026 {
|
|
|
1027 write_char_internal (" ", printcharfun);
|
|
|
1028 print_internal (compiled_function_documentation (b), printcharfun,
|
|
|
1029 escapeflag);
|
|
|
1030 }
|
|
|
1031 /* COMPILED_INTERACTIVE = 5 */
|
|
|
1032 if (intp)
|
|
|
1033 {
|
|
|
1034 write_char_internal (" ", printcharfun);
|
|
|
1035 print_internal (compiled_function_interactive (b), printcharfun,
|
|
|
1036 escapeflag);
|
|
|
1037 }
|
|
|
1038 UNGCPRO;
|
|
|
1039 write_c_string (end, printcharfun);
|
|
|
1040 }
|
|
|
1041
|
|
|
1042 void
|
|
|
1043 print_compiled_function (Lisp_Object obj, Lisp_Object printcharfun,
|
|
|
1044 int escapeflag)
|
|
|
1045 {
|
|
|
1046 /* This function can GC */
|
|
|
1047 print_compiled_function_internal (((print_readably) ? "#[" :
|
|
|
1048 "#<compiled-function "),
|
|
|
1049 ((print_readably) ? "]" : ">"),
|
|
|
1050 obj, printcharfun, escapeflag);
|
|
|
1051 }
|
|
|
1052
|
|
|
1053 #ifdef LISP_FLOAT_TYPE
|
|
|
1054 void
|
|
|
1055 print_float (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
1056 {
|
|
|
1057 char pigbuf[350]; /* see comments in float_to_string */
|
|
|
1058
|
|
|
1059 float_to_string (pigbuf, float_data (XFLOAT (obj)));
|
|
|
1060 write_c_string (pigbuf, printcharfun);
|
|
|
1061 }
|
|
|
1062 #endif /* LISP_FLOAT_TYPE */
|
|
|
1063
|
|
|
1064 void
|
|
|
1065 print_symbol (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
1066 {
|
|
|
1067 /* This function can GC */
|
|
|
1068 /* #### Bug!! (intern "") isn't printed in some distinguished way */
|
|
|
1069 /* #### (the reader also loses on it) */
|
|
|
1070 struct Lisp_String *name = XSYMBOL (obj)->name;
|
|
|
1071 Bytecount size = string_length (name);
|
|
|
1072 struct gcpro gcpro1, gcpro2;
|
|
|
1073
|
|
|
1074 if (!escapeflag)
|
|
|
1075 {
|
|
|
1076 /* This deals with GC-relocation */
|
|
|
1077 Lisp_Object nameobj;
|
|
|
1078 XSETSTRING (nameobj, name);
|
|
|
1079 output_string (printcharfun, 0, nameobj, 0, size);
|
|
|
1080 return;
|
|
|
1081 }
|
|
|
1082 GCPRO2 (obj, printcharfun);
|
|
|
1083
|
|
|
1084 if (print_gensym)
|
|
|
1085 {
|
|
|
1086 Lisp_Object tem = oblookup (Vobarray, string_data (name), size);
|
|
|
1087 if (!EQ (tem, obj))
|
|
|
1088 /* (read) would return a new symbol with the same name.
|
|
|
1089 This isn't quite correct, because that symbol might not
|
|
|
1090 really be uninterned (it might be interned in some other
|
|
|
1091 obarray) but there's no way to win in that case without
|
|
|
1092 implementing a real package system.
|
|
|
1093 */
|
|
|
1094 write_c_string ("#:", printcharfun);
|
|
|
1095 }
|
|
|
1096
|
|
|
1097 /* Does it look like an integer or a float? */
|
|
|
1098 {
|
|
|
1099 Bufbyte *data = string_data (name);
|
|
|
1100 Bytecount confusing = 0;
|
|
|
1101
|
|
|
1102 if (size == 0)
|
|
|
1103 goto not_yet_confused; /* Really confusing */
|
|
|
1104 else if (isdigit (data[0]))
|
|
|
1105 confusing = 0;
|
|
|
1106 else if (size == 1)
|
|
|
1107 goto not_yet_confused;
|
|
|
1108 else if (data[0] == '-' || data[0] == '+')
|
|
|
1109 confusing = 1;
|
|
|
1110 else
|
|
|
1111 goto not_yet_confused;
|
|
|
1112
|
|
|
1113 for (; confusing < size; confusing++)
|
|
|
1114 {
|
|
|
1115 if (!isdigit (data[confusing]))
|
|
|
1116 {
|
|
|
1117 confusing = 0;
|
|
|
1118 break;
|
|
|
1119 }
|
|
|
1120 }
|
|
|
1121 not_yet_confused:
|
|
|
1122
|
|
|
1123 #ifdef LISP_FLOAT_TYPE
|
|
|
1124 if (!confusing)
|
|
|
1125 confusing = isfloat_string ((char *) data);
|
|
|
1126 #endif
|
|
|
1127 if (confusing)
|
|
|
1128 write_char_internal ("\\", printcharfun);
|
|
|
1129 }
|
|
|
1130
|
|
|
1131 {
|
|
|
1132 Lisp_Object nameobj;
|
|
|
1133 Bytecount i;
|
|
|
1134 Bytecount last = 0;
|
|
|
1135
|
|
|
1136 XSETSTRING (nameobj, name);
|
|
|
1137 for (i = 0; i < size; i++)
|
|
|
1138 {
|
|
|
1139 Bufbyte c = string_byte (name, i);
|
|
|
1140
|
|
|
1141 if (c == '\"' || c == '\\' || c == '\'' || c == ';' || c == '#' ||
|
|
|
1142 c == '(' || c == ')' || c == ',' || c =='.' || c == '`' ||
|
|
|
1143 c == '[' || c == ']' || c == '?' || c <= 040)
|
|
|
1144 {
|
|
|
1145 if (i > last)
|
|
|
1146 {
|
|
|
1147 output_string (printcharfun, 0, nameobj, last,
|
|
|
1148 i - last);
|
|
|
1149 }
|
|
|
1150 write_char_internal ("\\", printcharfun);
|
|
|
1151 last = i;
|
|
|
1152 }
|
|
|
1153 }
|
|
|
1154 output_string (printcharfun, 0, nameobj, last, size - last);
|
|
|
1155 }
|
|
|
1156 UNGCPRO;
|
|
|
1157 }
|
|
|
1158
|
|
|
1159
|
|
|
1160 int alternate_do_pointer;
|
|
|
1161 char alternate_do_string[5000];
|
|
|
1162
|
|
|
1163 DEFUN ("alternate-debugging-output", Falternate_debugging_output,
|
|
|
1164 Salternate_debugging_output, 1, 1, 0 /*
|
|
|
1165 Append CHARACTER to the array `alternate_do_string'.
|
|
|
1166 This can be used in place of `external-debugging-output' as a function
|
|
|
1167 to be passed to `print'. Before calling `print', set `alternate_do_pointer'
|
|
|
1168 to 0.
|
|
|
1169
|
|
|
1170 */ )
|
|
|
1171 (character)
|
|
|
1172 Lisp_Object character;
|
|
|
1173 {
|
|
|
1174 Bufbyte str[MAX_EMCHAR_LEN];
|
|
|
1175 Bytecount len;
|
|
|
1176 int extlen;
|
|
|
1177 CONST Extbyte *extptr;
|
|
|
1178
|
|
|
1179 CHECK_CHAR_COERCE_INT (character);
|
|
|
1180 len = set_charptr_emchar (str, XCHAR (character));
|
|
16
|
1181 GET_CHARPTR_EXT_DATA_ALLOCA (str, len, FORMAT_TERMINAL, extptr, extlen);
|
|
0
|
1182 memcpy (alternate_do_string + alternate_do_pointer, extptr, extlen);
|
|
|
1183 alternate_do_pointer += extlen;
|
|
|
1184 alternate_do_string[alternate_do_pointer] = 0;
|
|
|
1185 return character;
|
|
|
1186 }
|
|
|
1187
|
|
|
1188 DEFUN ("external-debugging-output", Fexternal_debugging_output,
|
|
|
1189 Sexternal_debugging_output, 1, 3, 0 /*
|
|
|
1190 Write CHAR-OR-STRING to stderr or stdout.
|
|
|
1191 If optional arg STDOUT-P is non-nil, write to stdout; otherwise, write
|
|
|
1192 to stderr. You can use this function to write directly to the terminal.
|
|
|
1193 This function can be used as the STREAM argument of Fprint() or the like.
|
|
|
1194
|
|
|
1195 If you have opened a termscript file (using `open-termscript'), then
|
|
|
1196 the output also will be logged to this file.
|
|
|
1197 */ )
|
|
|
1198 (char_or_string, stdout_p, device)
|
|
|
1199 Lisp_Object char_or_string, stdout_p, device;
|
|
|
1200 {
|
|
|
1201 FILE *file = 0;
|
|
|
1202 struct console *con = 0;
|
|
|
1203
|
|
|
1204 if (NILP (device))
|
|
|
1205 {
|
|
|
1206 if (!NILP (stdout_p))
|
|
|
1207 file = stdout;
|
|
|
1208 else
|
|
|
1209 file = stderr;
|
|
|
1210 }
|
|
|
1211 else
|
|
|
1212 {
|
|
|
1213 CHECK_LIVE_DEVICE (device);
|
|
|
1214 if (!DEVICE_TTY_P (XDEVICE (device)) &&
|
|
|
1215 !DEVICE_STREAM_P (XDEVICE (device)))
|
|
|
1216 signal_simple_error ("Must be tty or stream device", device);
|
|
|
1217 con = XCONSOLE (DEVICE_CONSOLE (XDEVICE (device)));
|
|
|
1218 if (DEVICE_TTY_P (XDEVICE (device)))
|
|
|
1219 file = 0;
|
|
|
1220 else if (!NILP (stdout_p))
|
|
|
1221 file = CONSOLE_STREAM_DATA (con)->outfd;
|
|
|
1222 else
|
|
|
1223 file = CONSOLE_STREAM_DATA (con)->errfd;
|
|
|
1224 }
|
|
|
1225
|
|
|
1226 if (STRINGP (char_or_string))
|
|
|
1227 write_string_to_stdio_stream (file, con,
|
|
16
|
1228 XSTRING_DATA (char_or_string),
|
|
|
1229 0, XSTRING_LENGTH (char_or_string),
|
|
|
1230 FORMAT_TERMINAL);
|
|
0
|
1231 else
|
|
|
1232 {
|
|
|
1233 Bufbyte str[MAX_EMCHAR_LEN];
|
|
|
1234 Bytecount len;
|
|
|
1235
|
|
|
1236 CHECK_CHAR_COERCE_INT (char_or_string);
|
|
|
1237 len = set_charptr_emchar (str, XCHAR (char_or_string));
|
|
16
|
1238 write_string_to_stdio_stream (file, con, str, 0, len, FORMAT_TERMINAL);
|
|
0
|
1239 }
|
|
|
1240
|
|
|
1241 return char_or_string;
|
|
|
1242 }
|
|
|
1243
|
|
|
1244 DEFUN ("open-termscript", Fopen_termscript, Sopen_termscript,
|
|
|
1245 1, 1, "FOpen termscript file: " /*
|
|
|
1246 Start writing all terminal output to FILE as well as the terminal.
|
|
|
1247 FILE = nil means just close any termscript file currently open.
|
|
|
1248 */ )
|
|
|
1249 (file)
|
|
|
1250 Lisp_Object file;
|
|
|
1251 {
|
|
|
1252 /* This function can GC */
|
|
|
1253 if (termscript != 0)
|
|
|
1254 fclose (termscript);
|
|
|
1255 termscript = 0;
|
|
|
1256
|
|
|
1257 if (! NILP (file))
|
|
|
1258 {
|
|
|
1259 file = Fexpand_file_name (file, Qnil);
|
|
16
|
1260 termscript = fopen ((char *) XSTRING_DATA (file), "w");
|
|
0
|
1261 if (termscript == 0)
|
|
|
1262 report_file_error ("Opening termscript", Fcons (file, Qnil));
|
|
|
1263 }
|
|
|
1264 return Qnil;
|
|
|
1265 }
|
|
|
1266
|
|
|
1267 #if 1
|
|
|
1268 /* Debugging kludge -- unbuffered */
|
|
|
1269 static int debug_print_length = 50;
|
|
|
1270 static int debug_print_level = 15;
|
|
|
1271 Lisp_Object debug_temp;
|
|
|
1272 void debug_print_no_newline (Lisp_Object debug_print_obj);
|
|
|
1273 void
|
|
|
1274 debug_print_no_newline (Lisp_Object debug_print_obj)
|
|
|
1275 {
|
|
|
1276 /* This function can GC */
|
|
|
1277 int old_print_readably = print_readably;
|
|
|
1278 int old_print_depth = print_depth;
|
|
|
1279 Lisp_Object old_print_length = Vprint_length;
|
|
|
1280 Lisp_Object old_print_level = Vprint_level;
|
|
|
1281 Lisp_Object old_inhibit_quit = Vinhibit_quit;
|
|
|
1282 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
1283 GCPRO3 (old_print_level, old_print_length, old_inhibit_quit);
|
|
|
1284
|
|
|
1285 if (gc_in_progress)
|
|
|
1286 stderr_out ("** gc-in-progress! Bad idea to print anything! **\n");
|
|
|
1287
|
|
|
1288 print_depth = 0;
|
|
|
1289 print_readably = 0;
|
|
|
1290 print_unbuffered++;
|
|
|
1291 /* Could use unwind-protect, but why bother? */
|
|
|
1292 if (debug_print_length > 0)
|
|
|
1293 Vprint_length = make_int (debug_print_length);
|
|
|
1294 if (debug_print_level > 0)
|
|
|
1295 Vprint_level = make_int (debug_print_level);
|
|
|
1296 print_internal (debug_print_obj, Qexternal_debugging_output, 1);
|
|
|
1297 Vinhibit_quit = old_inhibit_quit;
|
|
|
1298 Vprint_level = old_print_level;
|
|
|
1299 Vprint_length = old_print_length;
|
|
|
1300 print_depth = old_print_depth;
|
|
|
1301 print_readably = old_print_readably;
|
|
|
1302 print_unbuffered--;
|
|
|
1303 UNGCPRO;
|
|
|
1304 }
|
|
|
1305
|
|
|
1306 void debug_print (Lisp_Object debug_print_obj);
|
|
|
1307 void
|
|
|
1308 debug_print (Lisp_Object debug_print_obj)
|
|
|
1309 {
|
|
|
1310 debug_print_no_newline (debug_print_obj);
|
|
|
1311 stderr_out ("\n");
|
|
|
1312 fflush (stderr);
|
|
|
1313 }
|
|
|
1314
|
|
|
1315 /* Debugging kludge -- unbuffered */
|
|
|
1316 void
|
|
|
1317 debug_backtrace (void)
|
|
|
1318 {
|
|
|
1319 /* This function can GC */
|
|
|
1320 int old_print_readably = print_readably;
|
|
|
1321 int old_print_depth = print_depth;
|
|
|
1322 Lisp_Object old_print_length = Vprint_length;
|
|
|
1323 Lisp_Object old_print_level = Vprint_level;
|
|
|
1324 Lisp_Object old_inhibit_quit = Vinhibit_quit;
|
|
|
1325 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
1326 GCPRO3 (old_print_level, old_print_length, old_inhibit_quit);
|
|
|
1327
|
|
|
1328 if (gc_in_progress)
|
|
|
1329 stderr_out ("** gc-in-progress! Bad idea to print anything! **\n");
|
|
|
1330
|
|
|
1331 print_depth = 0;
|
|
|
1332 print_readably = 0;
|
|
|
1333 print_unbuffered++;
|
|
|
1334 /* Could use unwind-protect, but why bother? */
|
|
|
1335 if (debug_print_length > 0)
|
|
|
1336 Vprint_length = make_int (debug_print_length);
|
|
|
1337 if (debug_print_level > 0)
|
|
|
1338 Vprint_level = make_int (debug_print_level);
|
|
|
1339 Fbacktrace (Qexternal_debugging_output, Qt);
|
|
|
1340 stderr_out ("\n");
|
|
|
1341 fflush (stderr);
|
|
|
1342 Vinhibit_quit = old_inhibit_quit;
|
|
|
1343 Vprint_level = old_print_level;
|
|
|
1344 Vprint_length = old_print_length;
|
|
|
1345 print_depth = old_print_depth;
|
|
|
1346 print_readably = old_print_readably;
|
|
|
1347 print_unbuffered--;
|
|
|
1348 UNGCPRO;
|
|
|
1349 }
|
|
|
1350
|
|
|
1351 void
|
|
|
1352 debug_short_backtrace (int length)
|
|
|
1353 {
|
|
|
1354 int first = 1;
|
|
|
1355 struct backtrace *bt = backtrace_list;
|
|
|
1356 stderr_out (" [");
|
|
|
1357 fflush (stderr);
|
|
|
1358 while (length > 0 && bt)
|
|
|
1359 {
|
|
|
1360 if (!first)
|
|
|
1361 {
|
|
|
1362 stderr_out (", ");
|
|
|
1363 fflush (stderr);
|
|
|
1364 }
|
|
|
1365 if (COMPILED_FUNCTIONP (*bt->function))
|
|
|
1366 {
|
|
|
1367 Lisp_Object ann = Fcompiled_function_annotation (*bt->function);
|
|
|
1368 if (!NILP (ann))
|
|
|
1369 {
|
|
|
1370 stderr_out ("<compiled-function from ");
|
|
|
1371 fflush (stderr);
|
|
|
1372 debug_print_no_newline (ann);
|
|
|
1373 stderr_out (">");
|
|
|
1374 fflush (stderr);
|
|
|
1375 }
|
|
|
1376 else
|
|
|
1377 {
|
|
|
1378 stderr_out ("<compiled-function of unknown origin>");
|
|
|
1379 fflush (stderr);
|
|
|
1380 }
|
|
|
1381 }
|
|
|
1382 else
|
|
|
1383 debug_print_no_newline (*bt->function);
|
|
|
1384 first = 0;
|
|
|
1385 length--;
|
|
|
1386 bt = bt->next;
|
|
|
1387 }
|
|
|
1388 stderr_out ("]\n");
|
|
|
1389 fflush (stderr);
|
|
|
1390 }
|
|
|
1391
|
|
|
1392 #endif /* debugging kludge */
|
|
|
1393
|
|
|
1394
|
|
|
1395 void
|
|
|
1396 syms_of_print (void)
|
|
|
1397 {
|
|
|
1398 defsymbol (&Qprint_escape_newlines, "print-escape-newlines");
|
|
|
1399 defsymbol (&Qprint_readably, "print-readably");
|
|
|
1400
|
|
|
1401 defsymbol (&Qstandard_output, "standard-output");
|
|
|
1402
|
|
|
1403 #ifdef LISP_FLOAT_TYPE
|
|
|
1404 defsymbol (&Qfloat_output_format, "float-output-format");
|
|
|
1405 #endif
|
|
|
1406
|
|
|
1407 defsymbol (&Qprint_length, "print-length");
|
|
|
1408
|
|
|
1409 defsymbol (&Qprint_string_length, "print-string-length");
|
|
|
1410 defsubr (&Sprin1);
|
|
|
1411 defsubr (&Sprin1_to_string);
|
|
|
1412 defsubr (&Sprinc);
|
|
|
1413 defsubr (&Sprint);
|
|
|
1414 defsubr (&Sterpri);
|
|
|
1415 defsubr (&Swrite_char);
|
|
|
1416 defsubr (&Salternate_debugging_output);
|
|
|
1417 defsymbol (&Qalternate_debugging_output, "alternate-debugging-output");
|
|
|
1418 defsubr (&Sexternal_debugging_output);
|
|
|
1419 defsubr (&Sopen_termscript);
|
|
|
1420 defsymbol (&Qexternal_debugging_output, "external-debugging-output");
|
|
|
1421 #ifndef standalone
|
|
|
1422 defsubr (&Swith_output_to_temp_buffer);
|
|
|
1423 #endif /* not standalone */
|
|
|
1424 }
|
|
|
1425
|
|
|
1426 void
|
|
|
1427 lstream_type_create_print (void)
|
|
|
1428 {
|
|
|
1429 LSTREAM_HAS_METHOD (print, writer);
|
|
|
1430 LSTREAM_HAS_METHOD (print, marker);
|
|
|
1431 }
|
|
|
1432
|
|
|
1433 void
|
|
|
1434 vars_of_print (void)
|
|
|
1435 {
|
|
|
1436 alternate_do_pointer = 0;
|
|
|
1437
|
|
|
1438 DEFVAR_LISP ("standard-output", &Vstandard_output /*
|
|
|
1439 Output stream `print' uses by default for outputting a character.
|
|
|
1440 This may be any function of one argument.
|
|
|
1441 It may also be a buffer (output is inserted before point)
|
|
|
1442 or a marker (output is inserted and the marker is advanced)
|
|
|
1443 or the symbol t (output appears in the minibuffer line).
|
|
|
1444 */ );
|
|
|
1445 Vstandard_output = Qt;
|
|
|
1446
|
|
|
1447 #ifdef LISP_FLOAT_TYPE
|
|
|
1448 DEFVAR_LISP ("float-output-format", &Vfloat_output_format /*
|
|
|
1449 The format descriptor string that lisp uses to print floats.
|
|
|
1450 This is a %-spec like those accepted by `printf' in C,
|
|
|
1451 but with some restrictions. It must start with the two characters `%.'.
|
|
|
1452 After that comes an integer precision specification,
|
|
|
1453 and then a letter which controls the format.
|
|
|
1454 The letters allowed are `e', `f' and `g'.
|
|
|
1455 Use `e' for exponential notation \"DIG.DIGITSeEXPT\"
|
|
|
1456 Use `f' for decimal point notation \"DIGITS.DIGITS\".
|
|
|
1457 Use `g' to choose the shorter of those two formats for the number at hand.
|
|
|
1458 The precision in any of these cases is the number of digits following
|
|
|
1459 the decimal point. With `f', a precision of 0 means to omit the
|
|
|
1460 decimal point. 0 is not allowed with `f' or `g'.
|
|
|
1461
|
|
|
1462 A value of nil means to use `%.16g'.
|
|
|
1463
|
|
|
1464 Regardless of the value of `float-output-format', a floating point number
|
|
|
1465 will never be printed in such a way that it is ambiguous with an integer;
|
|
|
1466 that is, a floating-point number will always be printed with a decimal
|
|
|
1467 point and/or an exponent, even if the digits following the decimal point
|
|
|
1468 are all zero. This is to preserve read-equivalence.
|
|
|
1469 */ );
|
|
|
1470 Vfloat_output_format = Qnil;
|
|
|
1471 #endif /* LISP_FLOAT_TYPE */
|
|
|
1472
|
|
|
1473 DEFVAR_LISP ("print-length", &Vprint_length /*
|
|
|
1474 Maximum length of list or vector to print before abbreviating.
|
|
|
1475 A value of nil means no limit.
|
|
|
1476 */ );
|
|
|
1477 Vprint_length = Qnil;
|
|
|
1478
|
|
|
1479 DEFVAR_LISP ("print-string-length", &Vprint_string_length /*
|
|
|
1480 Maximum length of string to print before abbreviating.
|
|
|
1481 A value of nil means no limit.
|
|
|
1482 */ );
|
|
|
1483 Vprint_string_length = Qnil;
|
|
|
1484
|
|
|
1485 DEFVAR_LISP ("print-level", &Vprint_level /*
|
|
|
1486 Maximum depth of list nesting to print before abbreviating.
|
|
|
1487 A value of nil means no limit.
|
|
|
1488 */ );
|
|
|
1489 Vprint_level = Qnil;
|
|
|
1490
|
|
|
1491 DEFVAR_BOOL ("print-escape-newlines", &print_escape_newlines /*
|
|
|
1492 Non-nil means print newlines in strings as backslash-n.
|
|
|
1493 */ );
|
|
|
1494 print_escape_newlines = 0;
|
|
|
1495
|
|
|
1496 DEFVAR_BOOL ("print-readably", &print_readably /*
|
|
|
1497 If non-nil, then all objects will be printed in a readable form.
|
|
|
1498 If an object has no readable representation, then an error is signalled.
|
|
|
1499 When print-readably is true, compiled-function objects will be written in
|
|
|
1500 #[...] form instead of in #<compiled-function [...]> form, and two-element
|
|
|
1501 lists of the form (quote object) will be written as the equivalent 'object.
|
|
|
1502 Do not SET this variable; bind it instead.
|
|
|
1503 */ );
|
|
|
1504 print_readably = 0;
|
|
|
1505
|
|
|
1506 DEFVAR_BOOL ("print-gensym", &print_gensym /*
|
|
|
1507 If non-nil, then uninterned symbols will be printed specially.
|
|
|
1508 Uninterned symbols are those which are not present in `obarray', that is,
|
|
|
1509 those which were made with `make-symbol' or by calling `intern' with a
|
|
|
1510 second argument.
|
|
|
1511
|
|
|
1512 When print-gensym is true, such symbols will be preceeded by \"#:\", which
|
|
|
1513 causes the reader to create a new symbol instead of interning and returning
|
|
|
1514 an existing one. Beware: the #: syntax creates a new symbol each time it is
|
|
|
1515 seen, so if you print an object which contains two pointers to the same
|
|
|
1516 uninterned symbol, `read' will not duplicate that structure.
|
|
|
1517
|
|
|
1518 Also, since XEmacs has no real notion of packages, there is no way for the
|
|
|
1519 printer to distinguish between symbols interned in no obarray, and symbols
|
|
|
1520 interned in an alternate obarray.
|
|
|
1521 */ );
|
|
|
1522 print_gensym = 0;
|
|
|
1523
|
|
|
1524 DEFVAR_LISP ("print-message-label", &Vprint_message_label /*
|
|
|
1525 Label for minibuffer messages created with `print'. This should
|
|
|
1526 generally be bound with `let' rather than set. (See `display-message'.)
|
|
|
1527 */ );
|
|
|
1528 Vprint_message_label = Qprint;
|
|
|
1529
|
|
|
1530 /* prin1_to_string_buffer initialized in init_buffer_once in buffer.c */
|
|
|
1531 staticpro (&Vprin1_to_string_buffer);
|
|
|
1532 }
|
