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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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442
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3 Copyright (C) 1995, 1996, 2000 Ben Wing.
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428
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4
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5 This file is part of XEmacs.
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6
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7 XEmacs is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Synched up with: Not synched with FSF. */
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23
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24 /* This file has been Mule-ized. */
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25
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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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442
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41 #ifdef WIN32_NATIVE
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42 #include "console-msw.h"
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43 #endif
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428
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44
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45 #include <float.h>
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46 /* Define if not in float.h */
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47 #ifndef DBL_DIG
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48 #define DBL_DIG 16
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49 #endif
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50
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51 Lisp_Object Vstandard_output, Qstandard_output;
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52
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53 /* The subroutine object for external-debugging-output is kept here
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54 for the convenience of the debugger. */
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442
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55 Lisp_Object Qexternal_debugging_output, Qalternate_debugging_output;
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56
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57 #ifdef HAVE_MS_WINDOWS
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58 Lisp_Object Qmswindows_debugging_output;
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59 #endif
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428
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60
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61 /* Avoid actual stack overflow in print. */
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62 static int print_depth;
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63
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64 /* Detect most circularities to print finite output. */
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65 #define PRINT_CIRCLE 200
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66 static Lisp_Object being_printed[PRINT_CIRCLE];
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67
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68 /* Maximum length of list or vector 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_length;
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72 Lisp_Object Qprint_length;
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73
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74 /* Maximum length of string 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_string_length;
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78 Lisp_Object Qprint_string_length;
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79
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80 /* Maximum depth of list to print in full; noninteger means
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81 effectively infinity. */
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82
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83 Lisp_Object Vprint_level;
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84
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85 /* Label to use when making echo-area messages. */
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86
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87 Lisp_Object Vprint_message_label;
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88
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89 /* Nonzero means print newlines in strings as \n. */
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90
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91 int print_escape_newlines;
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92 int print_readably;
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93
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94 /* Non-nil means print #: before uninterned symbols.
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95 Neither t nor nil means so that and don't clear Vprint_gensym_alist
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96 on entry to and exit from print functions. */
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97 Lisp_Object Vprint_gensym;
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98 Lisp_Object Vprint_gensym_alist;
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99
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100 Lisp_Object Qdisplay_error;
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101 Lisp_Object Qprint_message_label;
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102
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103 /* Force immediate output of all printed data. Used for debugging. */
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104 int print_unbuffered;
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105
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106 FILE *termscript; /* Stdio stream being used for copy of all output. */
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107
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108
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109
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110 int stdout_needs_newline;
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111
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442
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112 static void
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113 std_handle_out_external (FILE *stream, Lisp_Object lstream,
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114 const Extbyte *extptr, Extcount extlen,
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115 /* is this really stdout/stderr?
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116 (controls termscript writing) */
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117 int output_is_std_handle,
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118 int must_flush)
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428
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119 {
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120 if (stream)
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121 {
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442
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122 #ifdef WIN32_NATIVE
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123 HANDLE errhand = GetStdHandle (STD_INPUT_HANDLE);
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124 int no_useful_stderr = errhand == 0 || errhand == INVALID_HANDLE_VALUE;
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125
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126 if (!no_useful_stderr)
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127 no_useful_stderr = !PeekNamedPipe (errhand, 0, 0, 0, 0, 0);
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128 /* we typically have no useful stdout/stderr under windows if we're
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129 being invoked graphically. */
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130 if (no_useful_stderr)
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131 mswindows_output_console_string (extptr, extlen);
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132 else
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428
|
133 #endif
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442
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134 {
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135 fwrite (extptr, 1, extlen, stream);
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136 #ifdef WIN32_NATIVE
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137 /* Q122442 says that pipes are "treated as files, not as
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138 devices", and that this is a feature. Before I found that
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139 article, I thought it was a bug. Thanks MS, I feel much
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140 better now. - kkm */
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141 must_flush = 1;
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142 #endif
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143 if (must_flush)
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144 fflush (stream);
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145 }
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428
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146 }
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147 else
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442
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148 Lstream_write (XLSTREAM (lstream), extptr, extlen);
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149
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150 if (output_is_std_handle)
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428
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151 {
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152 if (termscript)
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153 {
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154 fwrite (extptr, 1, extlen, termscript);
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155 fflush (termscript);
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156 }
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157 stdout_needs_newline = (extptr[extlen - 1] != '\n');
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158 }
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159 }
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160
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442
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161 /* #### The following function should be replaced a call to the
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162 emacs_doprnt_*() functions. This is the only way to ensure that
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163 I18N3 works properly (many implementations of the *printf()
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164 functions, including the ones included in glibc, do not implement
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165 the %###$ argument-positioning syntax).
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166
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167 Note, however, that to do this, we'd have to
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168
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169 1) pre-allocate all the lstreams and do whatever else was necessary
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170 to make sure that no allocation occurs, since these functions may be
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171 called from fatal_error_signal().
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172
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173 2) (to be really correct) make a new lstream that outputs using
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174 mswindows_output_console_string(). */
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175
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176 static int
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177 std_handle_out_va (FILE *stream, const char *fmt, va_list args)
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178 {
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179 Bufbyte kludge[8192];
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180 Extbyte *extptr;
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181 Extcount extlen;
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182 int retval;
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183
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184 retval = vsprintf ((char *) kludge, fmt, args);
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185 if (initialized && !fatal_error_in_progress)
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186 TO_EXTERNAL_FORMAT (DATA, (kludge, strlen ((char *) kludge)),
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187 ALLOCA, (extptr, extlen),
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188 Qnative);
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189 else
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190 {
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191 extptr = (Extbyte *) kludge;
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192 extlen = (Extcount) strlen ((char *) kludge);
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193 }
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194
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195 std_handle_out_external (stream, Qnil, extptr, extlen, 1, 1);
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196 return retval;
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197 }
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198
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199 /* Output portably to stderr or its equivalent; call GETTEXT on the
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200 format string. Automatically flush when done. */
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201
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202 int
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203 stderr_out (const char *fmt, ...)
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204 {
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205 int retval;
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206 va_list args;
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207 va_start (args, fmt);
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208 retval =
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209 std_handle_out_va
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210 (stderr, initialized && !fatal_error_in_progress ? GETTEXT (fmt) : fmt,
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211 args);
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212 va_end (args);
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213 return retval;
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214 }
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215
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216 /* Output portably to stdout or its equivalent; call GETTEXT on the
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217 format string. Automatically flush when done. */
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218
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219 int
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220 stdout_out (const char *fmt, ...)
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221 {
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222 int retval;
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223 va_list args;
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224 va_start (args, fmt);
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225 retval =
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226 std_handle_out_va
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227 (stdout, initialized && !fatal_error_in_progress ? GETTEXT (fmt) : fmt,
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228 args);
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229 va_end (args);
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230 return retval;
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231 }
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232
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233 DOESNT_RETURN
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234 fatal (const char *fmt, ...)
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235 {
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236 va_list args;
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237 va_start (args, fmt);
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238
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239 stderr_out ("\nXEmacs: ");
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240 std_handle_out_va (stderr, GETTEXT (fmt), args);
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241 stderr_out ("\n");
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242
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243 va_end (args);
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244 exit (1);
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245 }
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246
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247 /* Write a string (in internal format) to stdio stream STREAM. */
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248
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249 void
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250 write_string_to_stdio_stream (FILE *stream, struct console *con,
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251 const Bufbyte *str,
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252 Bytecount offset, Bytecount len,
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253 Lisp_Object coding_system,
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254 int must_flush)
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255 {
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256 Extcount extlen;
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257 const Extbyte *extptr;
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258
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|
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259 /* #### yuck! sometimes this function is called with string data,
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260 and the following call may gc. */
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|
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261 {
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262 Bufbyte *puta = (Bufbyte *) alloca (len);
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263 memcpy (puta, str + offset, len);
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264 TO_EXTERNAL_FORMAT (DATA, (puta, len),
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265 ALLOCA, (extptr, extlen),
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266 coding_system);
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|
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267 }
|
|
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268
|
|
|
269 if (stream)
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270 std_handle_out_external (stream, Qnil, extptr, extlen,
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|
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271 stream == stdout || stream == stderr, must_flush);
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272 else
|
|
|
273 {
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|
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274 assert (CONSOLE_TTY_P (con));
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|
|
275 std_handle_out_external (0, CONSOLE_TTY_DATA (con)->outstream,
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|
276 extptr, extlen,
|
|
|
277 CONSOLE_TTY_DATA (con)->is_stdio, must_flush);
|
|
|
278 }
|
|
|
279 }
|
|
|
280
|
|
428
|
281 /* Write a string to the output location specified in FUNCTION.
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|
282 Arguments NONRELOC, RELOC, OFFSET, and LEN are as in
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|
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283 buffer_insert_string_1() in insdel.c. */
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|
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284
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|
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285 static void
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|
442
|
286 output_string (Lisp_Object function, const Bufbyte *nonreloc,
|
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428
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287 Lisp_Object reloc, Bytecount offset, Bytecount len)
|
|
|
288 {
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|
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289 /* This function can GC */
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|
290 Charcount cclen;
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|
291 /* We change the value of nonreloc (fetching it from reloc as
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|
292 necessary), but we don't want to pass this changed value on to
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|
293 other functions that take both a nonreloc and a reloc, or things
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|
294 may get confused and an assertion failure in
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|
|
295 fixup_internal_substring() may get triggered. */
|
|
442
|
296 const Bufbyte *newnonreloc = nonreloc;
|
|
428
|
297 struct gcpro gcpro1, gcpro2;
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298
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|
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299 /* Emacs won't print while GCing, but an external debugger might */
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300 if (gc_in_progress) return;
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301
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|
|
302 /* Perhaps not necessary but probably safer. */
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|
|
303 GCPRO2 (function, reloc);
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|
304
|
|
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305 fixup_internal_substring (newnonreloc, reloc, offset, &len);
|
|
|
306
|
|
|
307 if (STRINGP (reloc))
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308 newnonreloc = XSTRING_DATA (reloc);
|
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|
309
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|
|
310 cclen = bytecount_to_charcount (newnonreloc + offset, len);
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|
|
311
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|
|
312 if (LSTREAMP (function))
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|
|
313 {
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|
|
314 if (STRINGP (reloc))
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|
|
315 {
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|
|
316 /* Protect against Lstream_write() causing a GC and
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|
317 relocating the string. For small strings, we do it by
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|
318 alloc'ing the string and using a copy; for large strings,
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|
|
319 we inhibit GC. */
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|
|
320 if (len < 65536)
|
|
|
321 {
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|
|
322 Bufbyte *copied = alloca_array (Bufbyte, len);
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323 memcpy (copied, newnonreloc + offset, len);
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|
|
324 Lstream_write (XLSTREAM (function), copied, len);
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|
|
325 }
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|
|
326 else
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|
|
327 {
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|
|
328 int speccount = specpdl_depth ();
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|
|
329 record_unwind_protect (restore_gc_inhibit,
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|
|
330 make_int (gc_currently_forbidden));
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|
|
331 gc_currently_forbidden = 1;
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|
|
332 Lstream_write (XLSTREAM (function), newnonreloc + offset, len);
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|
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333 unbind_to (speccount, Qnil);
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|
|
334 }
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|
|
335 }
|
|
|
336 else
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|
|
337 Lstream_write (XLSTREAM (function), newnonreloc + offset, len);
|
|
|
338
|
|
|
339 if (print_unbuffered)
|
|
|
340 Lstream_flush (XLSTREAM (function));
|
|
|
341 }
|
|
|
342 else if (BUFFERP (function))
|
|
|
343 {
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|
|
344 CHECK_LIVE_BUFFER (function);
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|
|
345 buffer_insert_string (XBUFFER (function), nonreloc, reloc, offset, len);
|
|
|
346 }
|
|
|
347 else if (MARKERP (function))
|
|
|
348 {
|
|
|
349 /* marker_position() will err if marker doesn't point anywhere. */
|
|
|
350 Bufpos spoint = marker_position (function);
|
|
|
351
|
|
|
352 buffer_insert_string_1 (XMARKER (function)->buffer,
|
|
|
353 spoint, nonreloc, reloc, offset, len,
|
|
|
354 0);
|
|
|
355 Fset_marker (function, make_int (spoint + cclen),
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|
|
356 Fmarker_buffer (function));
|
|
|
357 }
|
|
|
358 else if (FRAMEP (function))
|
|
|
359 {
|
|
|
360 /* This gets used by functions not invoking print_prepare(),
|
|
|
361 such as Fwrite_char, Fterpri, etc.. */
|
|
|
362 struct frame *f = XFRAME (function);
|
|
|
363 CHECK_LIVE_FRAME (function);
|
|
|
364
|
|
|
365 if (!EQ (Vprint_message_label, echo_area_status (f)))
|
|
|
366 clear_echo_area_from_print (f, Qnil, 1);
|
|
|
367 echo_area_append (f, nonreloc, reloc, offset, len, Vprint_message_label);
|
|
|
368 }
|
|
|
369 else if (EQ (function, Qt) || EQ (function, Qnil))
|
|
|
370 {
|
|
|
371 write_string_to_stdio_stream (stdout, 0, newnonreloc, offset, len,
|
|
442
|
372 Qterminal, print_unbuffered);
|
|
428
|
373 }
|
|
|
374 else
|
|
|
375 {
|
|
|
376 Charcount ccoff = bytecount_to_charcount (newnonreloc, offset);
|
|
|
377 Charcount iii;
|
|
|
378
|
|
|
379 for (iii = ccoff; iii < cclen + ccoff; iii++)
|
|
|
380 {
|
|
|
381 call1 (function,
|
|
|
382 make_char (charptr_emchar_n (newnonreloc, iii)));
|
|
|
383 if (STRINGP (reloc))
|
|
|
384 newnonreloc = XSTRING_DATA (reloc);
|
|
|
385 }
|
|
|
386 }
|
|
|
387
|
|
|
388 UNGCPRO;
|
|
|
389 }
|
|
|
390
|
|
|
391 #define RESET_PRINT_GENSYM do { \
|
|
|
392 if (!CONSP (Vprint_gensym)) \
|
|
|
393 Vprint_gensym_alist = Qnil; \
|
|
|
394 } while (0)
|
|
|
395
|
|
|
396 static Lisp_Object
|
|
|
397 canonicalize_printcharfun (Lisp_Object printcharfun)
|
|
|
398 {
|
|
|
399 if (NILP (printcharfun))
|
|
|
400 printcharfun = Vstandard_output;
|
|
|
401
|
|
|
402 if (EQ (printcharfun, Qt) || NILP (printcharfun))
|
|
|
403 printcharfun = Fselected_frame (Qnil); /* print to minibuffer */
|
|
|
404
|
|
|
405 return printcharfun;
|
|
|
406 }
|
|
|
407
|
|
|
408 static Lisp_Object
|
|
|
409 print_prepare (Lisp_Object printcharfun, Lisp_Object *frame_kludge)
|
|
|
410 {
|
|
|
411 /* Emacs won't print while GCing, but an external debugger might */
|
|
|
412 if (gc_in_progress)
|
|
|
413 return Qnil;
|
|
|
414
|
|
|
415 RESET_PRINT_GENSYM;
|
|
|
416
|
|
|
417 printcharfun = canonicalize_printcharfun (printcharfun);
|
|
|
418
|
|
|
419 /* Here we could safely return the canonicalized PRINTCHARFUN.
|
|
|
420 However, if PRINTCHARFUN is a frame, printing of complex
|
|
|
421 structures becomes very expensive, because `append-message'
|
|
|
422 (called by echo_area_append) gets called as many times as
|
|
|
423 output_string() is called (and that's a *lot*). append-message
|
|
|
424 tries to keep top of the message-stack in sync with the contents
|
|
|
425 of " *Echo Area" buffer, consing a new string for each component
|
|
|
426 of the printed structure. For instance, if you print (a a),
|
|
|
427 append-message will cons up the following strings:
|
|
|
428
|
|
|
429 "("
|
|
|
430 "(a"
|
|
|
431 "(a "
|
|
|
432 "(a a"
|
|
|
433 "(a a)"
|
|
|
434
|
|
|
435 and will use only the last one. With larger objects, this turns
|
|
|
436 into an O(n^2) consing frenzy that locks up XEmacs in incessant
|
|
|
437 garbage collection.
|
|
|
438
|
|
|
439 We prevent this by creating a resizing_buffer stream and letting
|
|
|
440 the printer write into it. print_finish() will notice this
|
|
|
441 stream, and invoke echo_area_append() with the stream's buffer,
|
|
|
442 only once. */
|
|
|
443 if (FRAMEP (printcharfun))
|
|
|
444 {
|
|
|
445 CHECK_LIVE_FRAME (printcharfun);
|
|
|
446 *frame_kludge = printcharfun;
|
|
|
447 printcharfun = make_resizing_buffer_output_stream ();
|
|
|
448 }
|
|
|
449
|
|
|
450 return printcharfun;
|
|
|
451 }
|
|
|
452
|
|
|
453 static void
|
|
|
454 print_finish (Lisp_Object stream, Lisp_Object frame_kludge)
|
|
|
455 {
|
|
|
456 /* Emacs won't print while GCing, but an external debugger might */
|
|
|
457 if (gc_in_progress)
|
|
|
458 return;
|
|
|
459
|
|
|
460 RESET_PRINT_GENSYM;
|
|
|
461
|
|
|
462 /* See the comment in print_prepare(). */
|
|
|
463 if (FRAMEP (frame_kludge))
|
|
|
464 {
|
|
|
465 struct frame *f = XFRAME (frame_kludge);
|
|
|
466 Lstream *str = XLSTREAM (stream);
|
|
|
467 CHECK_LIVE_FRAME (frame_kludge);
|
|
|
468
|
|
|
469 Lstream_flush (str);
|
|
|
470 if (!EQ (Vprint_message_label, echo_area_status (f)))
|
|
|
471 clear_echo_area_from_print (f, Qnil, 1);
|
|
|
472 echo_area_append (f, resizing_buffer_stream_ptr (str),
|
|
|
473 Qnil, 0, Lstream_byte_count (str),
|
|
|
474 Vprint_message_label);
|
|
|
475 Lstream_delete (str);
|
|
|
476 }
|
|
|
477 }
|
|
|
478
|
|
|
479 /* Used for printing a single-byte character (*not* any Emchar). */
|
|
|
480 #define write_char_internal(string_of_length_1, stream) \
|
|
442
|
481 output_string (stream, (const Bufbyte *) (string_of_length_1), \
|
|
428
|
482 Qnil, 0, 1)
|
|
|
483
|
|
|
484 /* NOTE: Do not call this with the data of a Lisp_String, as
|
|
|
485 printcharfun might cause a GC, which might cause the string's data
|
|
|
486 to be relocated. To princ a Lisp string, use:
|
|
|
487
|
|
|
488 print_internal (string, printcharfun, 0);
|
|
|
489
|
|
|
490 Also note that STREAM should be the result of
|
|
|
491 canonicalize_printcharfun() (i.e. Qnil means stdout, not
|
|
|
492 Vstandard_output, etc.) */
|
|
|
493 void
|
|
442
|
494 write_string_1 (const Bufbyte *str, Bytecount size, Lisp_Object stream)
|
|
428
|
495 {
|
|
|
496 /* This function can GC */
|
|
|
497 #ifdef ERROR_CHECK_BUFPOS
|
|
|
498 assert (size >= 0);
|
|
|
499 #endif
|
|
|
500 output_string (stream, str, Qnil, 0, size);
|
|
|
501 }
|
|
|
502
|
|
|
503 void
|
|
442
|
504 write_c_string (const char *str, Lisp_Object stream)
|
|
428
|
505 {
|
|
|
506 /* This function can GC */
|
|
442
|
507 write_string_1 ((const Bufbyte *) str, strlen (str), stream);
|
|
428
|
508 }
|
|
|
509
|
|
|
510
|
|
|
511 DEFUN ("write-char", Fwrite_char, 1, 2, 0, /*
|
|
444
|
512 Output character CHARACTER to stream STREAM.
|
|
428
|
513 STREAM defaults to the value of `standard-output' (which see).
|
|
|
514 */
|
|
444
|
515 (character, stream))
|
|
428
|
516 {
|
|
|
517 /* This function can GC */
|
|
|
518 Bufbyte str[MAX_EMCHAR_LEN];
|
|
|
519 Bytecount len;
|
|
|
520
|
|
444
|
521 CHECK_CHAR_COERCE_INT (character);
|
|
|
522 len = set_charptr_emchar (str, XCHAR (character));
|
|
428
|
523 output_string (canonicalize_printcharfun (stream), str, Qnil, 0, len);
|
|
444
|
524 return character;
|
|
428
|
525 }
|
|
|
526
|
|
|
527 void
|
|
|
528 temp_output_buffer_setup (Lisp_Object bufname)
|
|
|
529 {
|
|
|
530 /* This function can GC */
|
|
|
531 struct buffer *old = current_buffer;
|
|
|
532 Lisp_Object buf;
|
|
|
533
|
|
|
534 #ifdef I18N3
|
|
|
535 /* #### This function should accept a Lisp_Object instead of a char *,
|
|
|
536 so that proper translation on the buffer name can occur. */
|
|
|
537 #endif
|
|
|
538
|
|
|
539 Fset_buffer (Fget_buffer_create (bufname));
|
|
|
540
|
|
|
541 current_buffer->read_only = Qnil;
|
|
|
542 Ferase_buffer (Qnil);
|
|
|
543
|
|
|
544 XSETBUFFER (buf, current_buffer);
|
|
|
545 specbind (Qstandard_output, buf);
|
|
|
546
|
|
|
547 set_buffer_internal (old);
|
|
|
548 }
|
|
|
549
|
|
|
550 Lisp_Object
|
|
|
551 internal_with_output_to_temp_buffer (Lisp_Object bufname,
|
|
|
552 Lisp_Object (*function) (Lisp_Object arg),
|
|
|
553 Lisp_Object arg,
|
|
|
554 Lisp_Object same_frame)
|
|
|
555 {
|
|
|
556 int speccount = specpdl_depth ();
|
|
|
557 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
558 Lisp_Object buf = Qnil;
|
|
|
559
|
|
|
560 GCPRO3 (buf, arg, same_frame);
|
|
|
561
|
|
|
562 temp_output_buffer_setup (bufname);
|
|
|
563 buf = Vstandard_output;
|
|
|
564
|
|
|
565 arg = (*function) (arg);
|
|
|
566
|
|
|
567 temp_output_buffer_show (buf, same_frame);
|
|
|
568 UNGCPRO;
|
|
|
569
|
|
|
570 return unbind_to (speccount, arg);
|
|
|
571 }
|
|
|
572
|
|
|
573 DEFUN ("with-output-to-temp-buffer", Fwith_output_to_temp_buffer, 1, UNEVALLED, 0, /*
|
|
|
574 Bind `standard-output' to buffer BUFNAME, eval BODY, then show that buffer.
|
|
|
575 The buffer is cleared out initially, and marked as unmodified when done.
|
|
|
576 All output done by BODY is inserted in that buffer by default.
|
|
|
577 The buffer is displayed in another window, but not selected.
|
|
|
578 The value of the last form in BODY is returned.
|
|
|
579 If BODY does not finish normally, the buffer BUFNAME is not displayed.
|
|
|
580
|
|
|
581 If variable `temp-buffer-show-function' is non-nil, call it at the end
|
|
|
582 to get the buffer displayed. It gets one argument, the buffer to display.
|
|
|
583 */
|
|
|
584 (args))
|
|
|
585 {
|
|
|
586 /* This function can GC */
|
|
|
587 Lisp_Object name = Qnil;
|
|
|
588 int speccount = specpdl_depth ();
|
|
|
589 struct gcpro gcpro1, gcpro2;
|
|
|
590 Lisp_Object val = Qnil;
|
|
|
591
|
|
|
592 #ifdef I18N3
|
|
|
593 /* #### should set the buffer to be translating. See print_internal(). */
|
|
|
594 #endif
|
|
|
595
|
|
|
596 GCPRO2 (name, val);
|
|
|
597 name = Feval (XCAR (args));
|
|
|
598
|
|
|
599 CHECK_STRING (name);
|
|
|
600
|
|
|
601 temp_output_buffer_setup (name);
|
|
|
602 UNGCPRO;
|
|
|
603
|
|
|
604 val = Fprogn (XCDR (args));
|
|
|
605
|
|
|
606 temp_output_buffer_show (Vstandard_output, Qnil);
|
|
|
607
|
|
|
608 return unbind_to (speccount, val);
|
|
|
609 }
|
|
|
610
|
|
|
611 DEFUN ("terpri", Fterpri, 0, 1, 0, /*
|
|
|
612 Output a newline to STREAM.
|
|
|
613 If STREAM is omitted or nil, the value of `standard-output' is used.
|
|
|
614 */
|
|
|
615 (stream))
|
|
|
616 {
|
|
|
617 /* This function can GC */
|
|
|
618 write_char_internal ("\n", canonicalize_printcharfun (stream));
|
|
|
619 return Qt;
|
|
|
620 }
|
|
|
621
|
|
|
622 DEFUN ("prin1", Fprin1, 1, 2, 0, /*
|
|
|
623 Output the printed representation of OBJECT, any Lisp object.
|
|
|
624 Quoting characters are printed when needed to make output that `read'
|
|
|
625 can handle, whenever this is possible.
|
|
|
626 Output stream is STREAM, or value of `standard-output' (which see).
|
|
|
627 */
|
|
|
628 (object, stream))
|
|
|
629 {
|
|
|
630 /* This function can GC */
|
|
|
631 Lisp_Object frame = Qnil;
|
|
|
632 struct gcpro gcpro1, gcpro2;
|
|
|
633 GCPRO2 (object, stream);
|
|
|
634
|
|
|
635 print_depth = 0;
|
|
|
636 stream = print_prepare (stream, &frame);
|
|
|
637 print_internal (object, stream, 1);
|
|
|
638 print_finish (stream, frame);
|
|
|
639
|
|
|
640 UNGCPRO;
|
|
|
641 return object;
|
|
|
642 }
|
|
|
643
|
|
|
644 DEFUN ("prin1-to-string", Fprin1_to_string, 1, 2, 0, /*
|
|
|
645 Return a string containing the printed representation of OBJECT,
|
|
|
646 any Lisp object. Quoting characters are used when needed to make output
|
|
|
647 that `read' can handle, whenever this is possible, unless the optional
|
|
|
648 second argument NOESCAPE is non-nil.
|
|
|
649 */
|
|
|
650 (object, noescape))
|
|
|
651 {
|
|
|
652 /* This function can GC */
|
|
|
653 Lisp_Object result = Qnil;
|
|
|
654 Lisp_Object stream = make_resizing_buffer_output_stream ();
|
|
|
655 Lstream *str = XLSTREAM (stream);
|
|
|
656 /* gcpro OBJECT in case a caller forgot to do so */
|
|
|
657 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
658 GCPRO3 (object, stream, result);
|
|
|
659
|
|
|
660 print_depth = 0;
|
|
|
661 RESET_PRINT_GENSYM;
|
|
|
662 print_internal (object, stream, NILP (noescape));
|
|
|
663 RESET_PRINT_GENSYM;
|
|
|
664 Lstream_flush (str);
|
|
|
665 UNGCPRO;
|
|
|
666 result = make_string (resizing_buffer_stream_ptr (str),
|
|
|
667 Lstream_byte_count (str));
|
|
|
668 Lstream_delete (str);
|
|
|
669 return result;
|
|
|
670 }
|
|
|
671
|
|
|
672 DEFUN ("princ", Fprinc, 1, 2, 0, /*
|
|
|
673 Output the printed representation of OBJECT, any Lisp object.
|
|
|
674 No quoting characters are used; no delimiters are printed around
|
|
|
675 the contents of strings.
|
|
444
|
676 Output stream is STREAM, or value of `standard-output' (which see).
|
|
428
|
677 */
|
|
|
678 (object, stream))
|
|
|
679 {
|
|
|
680 /* This function can GC */
|
|
|
681 Lisp_Object frame = Qnil;
|
|
|
682 struct gcpro gcpro1, gcpro2;
|
|
|
683
|
|
|
684 GCPRO2 (object, stream);
|
|
|
685 stream = print_prepare (stream, &frame);
|
|
|
686 print_depth = 0;
|
|
|
687 print_internal (object, stream, 0);
|
|
|
688 print_finish (stream, frame);
|
|
|
689 UNGCPRO;
|
|
|
690 return object;
|
|
|
691 }
|
|
|
692
|
|
|
693 DEFUN ("print", Fprint, 1, 2, 0, /*
|
|
|
694 Output the printed representation of OBJECT, with newlines around it.
|
|
|
695 Quoting characters are printed when needed to make output that `read'
|
|
|
696 can handle, whenever this is possible.
|
|
|
697 Output stream is STREAM, or value of `standard-output' (which see).
|
|
|
698 */
|
|
|
699 (object, stream))
|
|
|
700 {
|
|
|
701 /* This function can GC */
|
|
|
702 Lisp_Object frame = Qnil;
|
|
|
703 struct gcpro gcpro1, gcpro2;
|
|
|
704
|
|
|
705 GCPRO2 (object, stream);
|
|
|
706 stream = print_prepare (stream, &frame);
|
|
|
707 print_depth = 0;
|
|
|
708 write_char_internal ("\n", stream);
|
|
|
709 print_internal (object, stream, 1);
|
|
|
710 write_char_internal ("\n", stream);
|
|
|
711 print_finish (stream, frame);
|
|
|
712 UNGCPRO;
|
|
|
713 return object;
|
|
|
714 }
|
|
|
715
|
|
|
716 /* Print an error message for the error DATA to STREAM. This is a
|
|
|
717 complete implementation of `display-error', which used to be in
|
|
|
718 Lisp (see prim/cmdloop.el). It was ported to C so it can be used
|
|
|
719 efficiently by Ferror_message_string. Fdisplay_error and
|
|
|
720 Ferror_message_string are trivial wrappers around this function.
|
|
|
721
|
|
|
722 STREAM should be the result of canonicalize_printcharfun(). */
|
|
|
723 static void
|
|
|
724 print_error_message (Lisp_Object error_object, Lisp_Object stream)
|
|
|
725 {
|
|
|
726 /* This function can GC */
|
|
|
727 Lisp_Object type = Fcar_safe (error_object);
|
|
|
728 Lisp_Object method = Qnil;
|
|
|
729 Lisp_Object tail;
|
|
|
730
|
|
|
731 /* No need to GCPRO anything under the assumption that ERROR_OBJECT
|
|
|
732 is GCPRO'd. */
|
|
|
733
|
|
|
734 if (! (CONSP (error_object) && SYMBOLP (type)
|
|
|
735 && CONSP (Fget (type, Qerror_conditions, Qnil))))
|
|
|
736 goto error_throw;
|
|
|
737
|
|
|
738 tail = XCDR (error_object);
|
|
|
739 while (!NILP (tail))
|
|
|
740 {
|
|
|
741 if (CONSP (tail))
|
|
|
742 tail = XCDR (tail);
|
|
|
743 else
|
|
|
744 goto error_throw;
|
|
|
745 }
|
|
|
746 tail = Fget (type, Qerror_conditions, Qnil);
|
|
|
747 while (!NILP (tail))
|
|
|
748 {
|
|
|
749 if (!(CONSP (tail) && SYMBOLP (XCAR (tail))))
|
|
|
750 goto error_throw;
|
|
|
751 else if (!NILP (Fget (XCAR (tail), Qdisplay_error, Qnil)))
|
|
|
752 {
|
|
|
753 method = Fget (XCAR (tail), Qdisplay_error, Qnil);
|
|
|
754 goto error_throw;
|
|
|
755 }
|
|
|
756 else
|
|
|
757 tail = XCDR (tail);
|
|
|
758 }
|
|
|
759 /* Default method */
|
|
|
760 {
|
|
|
761 int first = 1;
|
|
|
762 int speccount = specpdl_depth ();
|
|
438
|
763 Lisp_Object frame = Qnil;
|
|
|
764 struct gcpro gcpro1;
|
|
|
765 GCPRO1 (stream);
|
|
428
|
766
|
|
|
767 specbind (Qprint_message_label, Qerror);
|
|
438
|
768 stream = print_prepare (stream, &frame);
|
|
|
769
|
|
428
|
770 tail = Fcdr (error_object);
|
|
|
771 if (EQ (type, Qerror))
|
|
|
772 {
|
|
|
773 print_internal (Fcar (tail), stream, 0);
|
|
|
774 tail = Fcdr (tail);
|
|
|
775 }
|
|
|
776 else
|
|
|
777 {
|
|
|
778 Lisp_Object errmsg = Fget (type, Qerror_message, Qnil);
|
|
|
779 if (NILP (errmsg))
|
|
|
780 print_internal (type, stream, 0);
|
|
|
781 else
|
|
|
782 print_internal (LISP_GETTEXT (errmsg), stream, 0);
|
|
|
783 }
|
|
|
784 while (!NILP (tail))
|
|
|
785 {
|
|
|
786 write_c_string (first ? ": " : ", ", stream);
|
|
563
|
787 /* Most errors have an explanatory string as their first argument,
|
|
|
788 and it looks better not to put the quotes around it. */
|
|
|
789 print_internal (Fcar (tail), stream,
|
|
|
790 !(first && STRINGP (Fcar (tail))) ||
|
|
|
791 !NILP (Fget (type, Qerror_lacks_explanatory_string,
|
|
|
792 Qnil)));
|
|
428
|
793 tail = Fcdr (tail);
|
|
|
794 first = 0;
|
|
|
795 }
|
|
438
|
796 print_finish (stream, frame);
|
|
|
797 UNGCPRO;
|
|
428
|
798 unbind_to (speccount, Qnil);
|
|
|
799 return;
|
|
|
800 /* not reached */
|
|
|
801 }
|
|
|
802
|
|
|
803 error_throw:
|
|
|
804 if (NILP (method))
|
|
|
805 {
|
|
|
806 write_c_string (GETTEXT ("Peculiar error "), stream);
|
|
|
807 print_internal (error_object, stream, 1);
|
|
|
808 return;
|
|
|
809 }
|
|
|
810 else
|
|
|
811 {
|
|
|
812 call2 (method, error_object, stream);
|
|
|
813 }
|
|
|
814 }
|
|
|
815
|
|
|
816 DEFUN ("error-message-string", Ferror_message_string, 1, 1, 0, /*
|
|
|
817 Convert ERROR-OBJECT to an error message, and return it.
|
|
|
818
|
|
|
819 The format of ERROR-OBJECT should be (ERROR-SYMBOL . DATA). The
|
|
|
820 message is equivalent to the one that would be issued by
|
|
|
821 `display-error' with the same argument.
|
|
|
822 */
|
|
|
823 (error_object))
|
|
|
824 {
|
|
|
825 /* This function can GC */
|
|
|
826 Lisp_Object result = Qnil;
|
|
|
827 Lisp_Object stream = make_resizing_buffer_output_stream ();
|
|
|
828 struct gcpro gcpro1;
|
|
|
829 GCPRO1 (stream);
|
|
|
830
|
|
|
831 print_error_message (error_object, stream);
|
|
|
832 Lstream_flush (XLSTREAM (stream));
|
|
|
833 result = make_string (resizing_buffer_stream_ptr (XLSTREAM (stream)),
|
|
|
834 Lstream_byte_count (XLSTREAM (stream)));
|
|
|
835 Lstream_delete (XLSTREAM (stream));
|
|
|
836
|
|
|
837 UNGCPRO;
|
|
|
838 return result;
|
|
|
839 }
|
|
|
840
|
|
|
841 DEFUN ("display-error", Fdisplay_error, 2, 2, 0, /*
|
|
|
842 Display ERROR-OBJECT on STREAM in a user-friendly way.
|
|
|
843 */
|
|
|
844 (error_object, stream))
|
|
|
845 {
|
|
|
846 /* This function can GC */
|
|
|
847 print_error_message (error_object, canonicalize_printcharfun (stream));
|
|
|
848 return Qnil;
|
|
|
849 }
|
|
|
850
|
|
|
851
|
|
|
852 #ifdef LISP_FLOAT_TYPE
|
|
|
853
|
|
|
854 Lisp_Object Vfloat_output_format;
|
|
|
855
|
|
|
856 /*
|
|
|
857 * This buffer should be at least as large as the max string size of the
|
|
440
|
858 * largest float, printed in the biggest notation. This is undoubtedly
|
|
428
|
859 * 20d float_output_format, with the negative of the C-constant "HUGE"
|
|
|
860 * from <math.h>.
|
|
|
861 *
|
|
|
862 * On the vax the worst case is -1e38 in 20d format which takes 61 bytes.
|
|
|
863 *
|
|
|
864 * I assume that IEEE-754 format numbers can take 329 bytes for the worst
|
|
|
865 * case of -1e307 in 20d float_output_format. What is one to do (short of
|
|
|
866 * re-writing _doprnt to be more sane)?
|
|
|
867 * -wsr
|
|
|
868 */
|
|
|
869 void
|
|
|
870 float_to_string (char *buf, double data)
|
|
|
871 {
|
|
|
872 Bufbyte *cp, c;
|
|
|
873 int width;
|
|
|
874
|
|
|
875 if (NILP (Vfloat_output_format)
|
|
|
876 || !STRINGP (Vfloat_output_format))
|
|
|
877 lose:
|
|
|
878 sprintf (buf, "%.16g", data);
|
|
|
879 else /* oink oink */
|
|
|
880 {
|
|
|
881 /* Check that the spec we have is fully valid.
|
|
|
882 This means not only valid for printf,
|
|
|
883 but meant for floats, and reasonable. */
|
|
|
884 cp = XSTRING_DATA (Vfloat_output_format);
|
|
|
885
|
|
|
886 if (cp[0] != '%')
|
|
|
887 goto lose;
|
|
|
888 if (cp[1] != '.')
|
|
|
889 goto lose;
|
|
|
890
|
|
|
891 cp += 2;
|
|
|
892 for (width = 0; (c = *cp, isdigit (c)); cp++)
|
|
|
893 {
|
|
|
894 width *= 10;
|
|
|
895 width += c - '0';
|
|
|
896 }
|
|
|
897
|
|
|
898 if (*cp != 'e' && *cp != 'f' && *cp != 'g' && *cp != 'E' && *cp != 'G')
|
|
|
899 goto lose;
|
|
|
900
|
|
|
901 if (width < (int) (*cp != 'e' && *cp != 'E') || width > DBL_DIG)
|
|
|
902 goto lose;
|
|
|
903
|
|
|
904 if (cp[1] != 0)
|
|
|
905 goto lose;
|
|
|
906
|
|
|
907 sprintf (buf, (char *) XSTRING_DATA (Vfloat_output_format),
|
|
|
908 data);
|
|
|
909 }
|
|
|
910
|
|
|
911 /* added by jwz: don't allow "1.0" to print as "1"; that destroys
|
|
|
912 the read-equivalence of lisp objects. (* x 1) and (* x 1.0) do
|
|
|
913 not do the same thing, so it's important that the printed
|
|
|
914 representation of that form not be corrupted by the printer.
|
|
|
915 */
|
|
|
916 {
|
|
|
917 Bufbyte *s = (Bufbyte *) buf; /* don't use signed chars here!
|
|
|
918 isdigit() can't hack them! */
|
|
|
919 if (*s == '-') s++;
|
|
|
920 for (; *s; s++)
|
|
|
921 /* if there's a non-digit, then there is a decimal point, or
|
|
|
922 it's in exponential notation, both of which are ok. */
|
|
|
923 if (!isdigit (*s))
|
|
|
924 goto DONE_LABEL;
|
|
|
925 /* otherwise, we need to hack it. */
|
|
|
926 *s++ = '.';
|
|
|
927 *s++ = '0';
|
|
|
928 *s = 0;
|
|
|
929 }
|
|
|
930 DONE_LABEL:
|
|
|
931
|
|
|
932 /* Some machines print "0.4" as ".4". I don't like that. */
|
|
|
933 if (buf [0] == '.' || (buf [0] == '-' && buf [1] == '.'))
|
|
|
934 {
|
|
|
935 int i;
|
|
|
936 for (i = strlen (buf) + 1; i >= 0; i--)
|
|
|
937 buf [i+1] = buf [i];
|
|
|
938 buf [(buf [0] == '-' ? 1 : 0)] = '0';
|
|
|
939 }
|
|
|
940 }
|
|
|
941 #endif /* LISP_FLOAT_TYPE */
|
|
|
942
|
|
446
|
943 /* Print NUMBER to BUFFER.
|
|
|
944 This is equivalent to sprintf (buffer, "%ld", number), only much faster.
|
|
428
|
945
|
|
|
946 BUFFER should accept 24 bytes. This should suffice for the longest
|
|
|
947 numbers on 64-bit machines, including the `-' sign and the trailing
|
|
446
|
948 '\0'. Returns a pointer to the trailing '\0'. */
|
|
|
949 char *
|
|
428
|
950 long_to_string (char *buffer, long number)
|
|
|
951 {
|
|
|
952 #if (SIZEOF_LONG != 4) && (SIZEOF_LONG != 8)
|
|
|
953 /* Huh? */
|
|
|
954 sprintf (buffer, "%ld", number);
|
|
446
|
955 return buffer + strlen (buffer);
|
|
428
|
956 #else /* (SIZEOF_LONG == 4) || (SIZEOF_LONG == 8) */
|
|
|
957 char *p = buffer;
|
|
|
958 int force = 0;
|
|
|
959
|
|
|
960 if (number < 0)
|
|
|
961 {
|
|
|
962 *p++ = '-';
|
|
|
963 number = -number;
|
|
|
964 }
|
|
|
965
|
|
|
966 #define FROB(figure) do { \
|
|
|
967 if (force || number >= figure) \
|
|
|
968 *p++ = number / figure + '0', number %= figure, force = 1; \
|
|
|
969 } while (0)
|
|
|
970 #if SIZEOF_LONG == 8
|
|
|
971 FROB (1000000000000000000L);
|
|
|
972 FROB (100000000000000000L);
|
|
|
973 FROB (10000000000000000L);
|
|
|
974 FROB (1000000000000000L);
|
|
|
975 FROB (100000000000000L);
|
|
|
976 FROB (10000000000000L);
|
|
|
977 FROB (1000000000000L);
|
|
|
978 FROB (100000000000L);
|
|
|
979 FROB (10000000000L);
|
|
|
980 #endif /* SIZEOF_LONG == 8 */
|
|
|
981 FROB (1000000000);
|
|
|
982 FROB (100000000);
|
|
|
983 FROB (10000000);
|
|
|
984 FROB (1000000);
|
|
|
985 FROB (100000);
|
|
|
986 FROB (10000);
|
|
|
987 FROB (1000);
|
|
|
988 FROB (100);
|
|
|
989 FROB (10);
|
|
|
990 #undef FROB
|
|
|
991 *p++ = number + '0';
|
|
|
992 *p = '\0';
|
|
446
|
993 return p;
|
|
428
|
994 #endif /* (SIZEOF_LONG == 4) || (SIZEOF_LONG == 8) */
|
|
|
995 }
|
|
|
996
|
|
|
997 static void
|
|
442
|
998 print_vector_internal (const char *start, const char *end,
|
|
428
|
999 Lisp_Object obj,
|
|
|
1000 Lisp_Object printcharfun, int escapeflag)
|
|
|
1001 {
|
|
|
1002 /* This function can GC */
|
|
|
1003 int i;
|
|
|
1004 int len = XVECTOR_LENGTH (obj);
|
|
|
1005 int last = len;
|
|
|
1006 struct gcpro gcpro1, gcpro2;
|
|
|
1007 GCPRO2 (obj, printcharfun);
|
|
|
1008
|
|
|
1009 if (INTP (Vprint_length))
|
|
|
1010 {
|
|
|
1011 int max = XINT (Vprint_length);
|
|
|
1012 if (max < len) last = max;
|
|
|
1013 }
|
|
|
1014
|
|
|
1015 write_c_string (start, printcharfun);
|
|
|
1016 for (i = 0; i < last; i++)
|
|
|
1017 {
|
|
|
1018 Lisp_Object elt = XVECTOR_DATA (obj)[i];
|
|
|
1019 if (i != 0) write_char_internal (" ", printcharfun);
|
|
|
1020 print_internal (elt, printcharfun, escapeflag);
|
|
|
1021 }
|
|
|
1022 UNGCPRO;
|
|
|
1023 if (last != len)
|
|
|
1024 write_c_string (" ...", printcharfun);
|
|
|
1025 write_c_string (end, printcharfun);
|
|
|
1026 }
|
|
|
1027
|
|
|
1028 void
|
|
|
1029 print_cons (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
1030 {
|
|
|
1031 /* This function can GC */
|
|
|
1032 struct gcpro gcpro1, gcpro2;
|
|
|
1033
|
|
|
1034 /* If print_readably is on, print (quote -foo-) as '-foo-
|
|
|
1035 (Yeah, this should really be what print-pretty does, but we
|
|
|
1036 don't have the rest of a pretty printer, and this actually
|
|
|
1037 has non-negligible impact on size/speed of .elc files.)
|
|
|
1038 */
|
|
|
1039 if (print_readably &&
|
|
|
1040 EQ (XCAR (obj), Qquote) &&
|
|
|
1041 CONSP (XCDR (obj)) &&
|
|
|
1042 NILP (XCDR (XCDR (obj))))
|
|
|
1043 {
|
|
|
1044 obj = XCAR (XCDR (obj));
|
|
|
1045 GCPRO2 (obj, printcharfun);
|
|
|
1046 write_char_internal ("\'", printcharfun);
|
|
|
1047 UNGCPRO;
|
|
|
1048 print_internal (obj, printcharfun, escapeflag);
|
|
|
1049 return;
|
|
|
1050 }
|
|
|
1051
|
|
|
1052 GCPRO2 (obj, printcharfun);
|
|
|
1053 write_char_internal ("(", printcharfun);
|
|
|
1054
|
|
|
1055 {
|
|
|
1056 int len;
|
|
|
1057 int max = INTP (Vprint_length) ? XINT (Vprint_length) : INT_MAX;
|
|
|
1058 Lisp_Object tortoise;
|
|
|
1059 /* Use tortoise/hare to make sure circular lists don't infloop */
|
|
|
1060
|
|
|
1061 for (tortoise = obj, len = 0;
|
|
|
1062 CONSP (obj);
|
|
|
1063 obj = XCDR (obj), len++)
|
|
|
1064 {
|
|
|
1065 if (len > 0)
|
|
|
1066 write_char_internal (" ", printcharfun);
|
|
|
1067 if (EQ (obj, tortoise) && len > 0)
|
|
|
1068 {
|
|
|
1069 if (print_readably)
|
|
563
|
1070 printing_unreadable_object ("circular list");
|
|
428
|
1071 else
|
|
|
1072 write_c_string ("... <circular list>", printcharfun);
|
|
|
1073 break;
|
|
|
1074 }
|
|
|
1075 if (len & 1)
|
|
|
1076 tortoise = XCDR (tortoise);
|
|
|
1077 if (len > max)
|
|
|
1078 {
|
|
|
1079 write_c_string ("...", printcharfun);
|
|
|
1080 break;
|
|
|
1081 }
|
|
|
1082 print_internal (XCAR (obj), printcharfun, escapeflag);
|
|
|
1083 }
|
|
|
1084 }
|
|
|
1085 if (!LISTP (obj))
|
|
|
1086 {
|
|
|
1087 write_c_string (" . ", printcharfun);
|
|
|
1088 print_internal (obj, printcharfun, escapeflag);
|
|
|
1089 }
|
|
|
1090 UNGCPRO;
|
|
|
1091
|
|
|
1092 write_char_internal (")", printcharfun);
|
|
|
1093 return;
|
|
|
1094 }
|
|
|
1095
|
|
|
1096 void
|
|
|
1097 print_vector (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
1098 {
|
|
|
1099 print_vector_internal ("[", "]", obj, printcharfun, escapeflag);
|
|
|
1100 }
|
|
|
1101
|
|
|
1102 void
|
|
|
1103 print_string (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
1104 {
|
|
440
|
1105 Lisp_String *s = XSTRING (obj);
|
|
428
|
1106 /* We distinguish between Bytecounts and Charcounts, to make
|
|
|
1107 Vprint_string_length work correctly under Mule. */
|
|
|
1108 Charcount size = string_char_length (s);
|
|
|
1109 Charcount max = size;
|
|
|
1110 Bytecount bcmax = string_length (s);
|
|
|
1111 struct gcpro gcpro1, gcpro2;
|
|
|
1112 GCPRO2 (obj, printcharfun);
|
|
|
1113
|
|
|
1114 if (INTP (Vprint_string_length) &&
|
|
|
1115 XINT (Vprint_string_length) < max)
|
|
|
1116 {
|
|
|
1117 max = XINT (Vprint_string_length);
|
|
|
1118 bcmax = charcount_to_bytecount (string_data (s), max);
|
|
|
1119 }
|
|
|
1120 if (max < 0)
|
|
|
1121 {
|
|
|
1122 max = 0;
|
|
|
1123 bcmax = 0;
|
|
|
1124 }
|
|
|
1125
|
|
|
1126 if (!escapeflag)
|
|
|
1127 {
|
|
|
1128 /* This deals with GC-relocation and Mule. */
|
|
|
1129 output_string (printcharfun, 0, obj, 0, bcmax);
|
|
|
1130 if (max < size)
|
|
|
1131 write_c_string (" ...", printcharfun);
|
|
|
1132 }
|
|
|
1133 else
|
|
|
1134 {
|
|
|
1135 Bytecount i, last = 0;
|
|
|
1136
|
|
|
1137 write_char_internal ("\"", printcharfun);
|
|
|
1138 for (i = 0; i < bcmax; i++)
|
|
|
1139 {
|
|
|
1140 Bufbyte ch = string_byte (s, i);
|
|
|
1141 if (ch == '\"' || ch == '\\'
|
|
|
1142 || (ch == '\n' && print_escape_newlines))
|
|
|
1143 {
|
|
|
1144 if (i > last)
|
|
|
1145 {
|
|
|
1146 output_string (printcharfun, 0, obj, last,
|
|
|
1147 i - last);
|
|
|
1148 }
|
|
|
1149 if (ch == '\n')
|
|
|
1150 {
|
|
|
1151 write_c_string ("\\n", printcharfun);
|
|
|
1152 }
|
|
|
1153 else
|
|
|
1154 {
|
|
|
1155 write_char_internal ("\\", printcharfun);
|
|
|
1156 /* This is correct for Mule because the
|
|
|
1157 character is either \ or " */
|
|
|
1158 write_char_internal (string_data (s) + i, printcharfun);
|
|
|
1159 }
|
|
|
1160 last = i + 1;
|
|
|
1161 }
|
|
|
1162 }
|
|
|
1163 if (bcmax > last)
|
|
|
1164 {
|
|
|
1165 output_string (printcharfun, 0, obj, last,
|
|
|
1166 bcmax - last);
|
|
|
1167 }
|
|
|
1168 if (max < size)
|
|
|
1169 write_c_string (" ...", printcharfun);
|
|
|
1170 write_char_internal ("\"", printcharfun);
|
|
|
1171 }
|
|
|
1172 UNGCPRO;
|
|
|
1173 }
|
|
|
1174
|
|
|
1175 static void
|
|
|
1176 default_object_printer (Lisp_Object obj, Lisp_Object printcharfun,
|
|
|
1177 int escapeflag)
|
|
|
1178 {
|
|
|
1179 struct lcrecord_header *header =
|
|
|
1180 (struct lcrecord_header *) XPNTR (obj);
|
|
|
1181 char buf[200];
|
|
|
1182
|
|
|
1183 if (print_readably)
|
|
563
|
1184 printing_unreadable_object
|
|
|
1185 ("#<%s 0x%x>",
|
|
|
1186 LHEADER_IMPLEMENTATION (&header->lheader)->name,
|
|
|
1187 header->uid);
|
|
428
|
1188
|
|
|
1189 sprintf (buf, "#<%s 0x%x>",
|
|
|
1190 LHEADER_IMPLEMENTATION (&header->lheader)->name,
|
|
|
1191 header->uid);
|
|
|
1192 write_c_string (buf, printcharfun);
|
|
|
1193 }
|
|
|
1194
|
|
|
1195 void
|
|
|
1196 internal_object_printer (Lisp_Object obj, Lisp_Object printcharfun,
|
|
|
1197 int escapeflag)
|
|
|
1198 {
|
|
|
1199 char buf[200];
|
|
|
1200 sprintf (buf, "#<INTERNAL OBJECT (XEmacs bug?) (%s) 0x%lx>",
|
|
|
1201 XRECORD_LHEADER_IMPLEMENTATION (obj)->name,
|
|
|
1202 (unsigned long) XPNTR (obj));
|
|
|
1203 write_c_string (buf, printcharfun);
|
|
|
1204 }
|
|
|
1205
|
|
|
1206 void
|
|
|
1207 print_internal (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
1208 {
|
|
|
1209 /* This function can GC */
|
|
|
1210
|
|
|
1211 QUIT;
|
|
|
1212
|
|
|
1213 /* Emacs won't print while GCing, but an external debugger might */
|
|
|
1214 if (gc_in_progress) return;
|
|
|
1215
|
|
|
1216 #ifdef I18N3
|
|
|
1217 /* #### Both input and output streams should have a flag associated
|
|
|
1218 with them indicating whether output to that stream, or strings
|
|
|
1219 read from the stream, get translated using Fgettext(). Such a
|
|
|
1220 stream is called a "translating stream". For the minibuffer and
|
|
|
1221 external-debugging-output this is always true on output, and
|
|
|
1222 with-output-to-temp-buffer sets the flag to true for the buffer
|
|
|
1223 it creates. This flag should also be user-settable. Perhaps it
|
|
|
1224 should be split up into two flags, one for input and one for
|
|
|
1225 output. */
|
|
|
1226 #endif
|
|
|
1227
|
|
|
1228 /* Detect circularities and truncate them.
|
|
|
1229 No need to offer any alternative--this is better than an error. */
|
|
|
1230 if (CONSP (obj) || VECTORP (obj) || COMPILED_FUNCTIONP (obj))
|
|
|
1231 {
|
|
|
1232 int i;
|
|
|
1233 for (i = 0; i < print_depth; i++)
|
|
|
1234 if (EQ (obj, being_printed[i]))
|
|
|
1235 {
|
|
|
1236 char buf[32];
|
|
|
1237 *buf = '#';
|
|
|
1238 long_to_string (buf + 1, i);
|
|
|
1239 write_c_string (buf, printcharfun);
|
|
|
1240 return;
|
|
|
1241 }
|
|
|
1242 }
|
|
|
1243
|
|
|
1244 being_printed[print_depth] = obj;
|
|
|
1245 print_depth++;
|
|
|
1246
|
|
|
1247 if (print_depth > PRINT_CIRCLE)
|
|
563
|
1248 signal_error (Qstack_overflow, "Apparently circular structure being printed", Qunbound);
|
|
428
|
1249
|
|
|
1250 switch (XTYPE (obj))
|
|
|
1251 {
|
|
|
1252 case Lisp_Type_Int_Even:
|
|
|
1253 case Lisp_Type_Int_Odd:
|
|
|
1254 {
|
|
434
|
1255 /* ASCII Decimal representation uses 2.4 times as many bits as
|
|
|
1256 machine binary. */
|
|
|
1257 char buf[3 * sizeof (EMACS_INT) + 5];
|
|
428
|
1258 long_to_string (buf, XINT (obj));
|
|
|
1259 write_c_string (buf, printcharfun);
|
|
|
1260 break;
|
|
|
1261 }
|
|
|
1262
|
|
|
1263 case Lisp_Type_Char:
|
|
|
1264 {
|
|
|
1265 /* God intended that this be #\..., you know. */
|
|
|
1266 char buf[16];
|
|
|
1267 Emchar ch = XCHAR (obj);
|
|
|
1268 char *p = buf;
|
|
|
1269 *p++ = '?';
|
|
434
|
1270 if (ch < 32)
|
|
|
1271 {
|
|
|
1272 *p++ = '\\';
|
|
|
1273 switch (ch)
|
|
|
1274 {
|
|
|
1275 case '\t': *p++ = 't'; break;
|
|
|
1276 case '\n': *p++ = 'n'; break;
|
|
|
1277 case '\r': *p++ = 'r'; break;
|
|
|
1278 default:
|
|
|
1279 *p++ = '^';
|
|
|
1280 *p++ = ch + 64;
|
|
|
1281 if ((ch + 64) == '\\')
|
|
|
1282 *p++ = '\\';
|
|
|
1283 break;
|
|
|
1284 }
|
|
|
1285 }
|
|
|
1286 else if (ch < 127)
|
|
428
|
1287 {
|
|
434
|
1288 /* syntactically special characters should be escaped. */
|
|
|
1289 switch (ch)
|
|
|
1290 {
|
|
|
1291 case ' ':
|
|
|
1292 case '"':
|
|
|
1293 case '#':
|
|
|
1294 case '\'':
|
|
|
1295 case '(':
|
|
|
1296 case ')':
|
|
|
1297 case ',':
|
|
|
1298 case '.':
|
|
|
1299 case ';':
|
|
|
1300 case '?':
|
|
|
1301 case '[':
|
|
|
1302 case '\\':
|
|
|
1303 case ']':
|
|
|
1304 case '`':
|
|
|
1305 *p++ = '\\';
|
|
|
1306 }
|
|
|
1307 *p++ = ch;
|
|
428
|
1308 }
|
|
|
1309 else if (ch == 127)
|
|
434
|
1310 {
|
|
|
1311 *p++ = '\\', *p++ = '^', *p++ = '?';
|
|
|
1312 }
|
|
|
1313 else if (ch < 160)
|
|
428
|
1314 {
|
|
|
1315 *p++ = '\\', *p++ = '^';
|
|
434
|
1316 p += set_charptr_emchar ((Bufbyte *) p, ch + 64);
|
|
428
|
1317 }
|
|
|
1318 else
|
|
434
|
1319 {
|
|
|
1320 p += set_charptr_emchar ((Bufbyte *) p, ch);
|
|
|
1321 }
|
|
440
|
1322
|
|
434
|
1323 output_string (printcharfun, (Bufbyte *) buf, Qnil, 0, p - buf);
|
|
|
1324
|
|
428
|
1325 break;
|
|
|
1326 }
|
|
|
1327
|
|
|
1328 case Lisp_Type_Record:
|
|
|
1329 {
|
|
|
1330 struct lrecord_header *lheader = XRECORD_LHEADER (obj);
|
|
|
1331 struct gcpro gcpro1, gcpro2;
|
|
|
1332
|
|
|
1333 if (CONSP (obj) || VECTORP(obj))
|
|
|
1334 {
|
|
|
1335 /* If deeper than spec'd depth, print placeholder. */
|
|
|
1336 if (INTP (Vprint_level)
|
|
|
1337 && print_depth > XINT (Vprint_level))
|
|
|
1338 {
|
|
|
1339 GCPRO2 (obj, printcharfun);
|
|
|
1340 write_c_string ("...", printcharfun);
|
|
|
1341 UNGCPRO;
|
|
|
1342 break;
|
|
|
1343 }
|
|
|
1344 }
|
|
|
1345
|
|
|
1346 GCPRO2 (obj, printcharfun);
|
|
|
1347 if (LHEADER_IMPLEMENTATION (lheader)->printer)
|
|
|
1348 ((LHEADER_IMPLEMENTATION (lheader)->printer)
|
|
|
1349 (obj, printcharfun, escapeflag));
|
|
|
1350 else
|
|
|
1351 default_object_printer (obj, printcharfun, escapeflag);
|
|
|
1352 UNGCPRO;
|
|
|
1353 break;
|
|
|
1354 }
|
|
|
1355
|
|
|
1356 default:
|
|
|
1357 {
|
|
|
1358 #ifdef ERROR_CHECK_TYPECHECK
|
|
|
1359 abort ();
|
|
|
1360 #else /* not ERROR_CHECK_TYPECHECK */
|
|
|
1361 char buf[128];
|
|
|
1362 /* We're in trouble if this happens! */
|
|
|
1363 if (print_readably)
|
|
563
|
1364 ty(e_error (Qinternal_error, "printing illegal data type #o%03o",
|
|
|
1365 (int) XTYPE (obj));
|
|
428
|
1366 write_c_string ("#<EMACS BUG: ILLEGAL DATATYPE ",
|
|
|
1367 printcharfun);
|
|
|
1368 sprintf (buf, "(#o%3o)", (int) XTYPE (obj));
|
|
|
1369 write_c_string (buf, printcharfun);
|
|
|
1370 write_c_string
|
|
|
1371 (" Save your buffers immediately and please report this bug>",
|
|
|
1372 printcharfun);
|
|
|
1373 #endif /* not ERROR_CHECK_TYPECHECK */
|
|
|
1374 break;
|
|
|
1375 }
|
|
|
1376 }
|
|
|
1377
|
|
|
1378 print_depth--;
|
|
|
1379 }
|
|
|
1380
|
|
|
1381
|
|
|
1382 #ifdef LISP_FLOAT_TYPE
|
|
|
1383 void
|
|
|
1384 print_float (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
1385 {
|
|
|
1386 char pigbuf[350]; /* see comments in float_to_string */
|
|
|
1387
|
|
|
1388 float_to_string (pigbuf, XFLOAT_DATA (obj));
|
|
|
1389 write_c_string (pigbuf, printcharfun);
|
|
|
1390 }
|
|
|
1391 #endif /* LISP_FLOAT_TYPE */
|
|
|
1392
|
|
|
1393 void
|
|
|
1394 print_symbol (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
1395 {
|
|
|
1396 /* This function can GC */
|
|
|
1397 /* #### Bug!! (intern "") isn't printed in some distinguished way */
|
|
|
1398 /* #### (the reader also loses on it) */
|
|
440
|
1399 Lisp_String *name = symbol_name (XSYMBOL (obj));
|
|
428
|
1400 Bytecount size = string_length (name);
|
|
|
1401 struct gcpro gcpro1, gcpro2;
|
|
|
1402
|
|
|
1403 if (!escapeflag)
|
|
|
1404 {
|
|
|
1405 /* This deals with GC-relocation */
|
|
|
1406 Lisp_Object nameobj;
|
|
|
1407 XSETSTRING (nameobj, name);
|
|
|
1408 output_string (printcharfun, 0, nameobj, 0, size);
|
|
|
1409 return;
|
|
|
1410 }
|
|
|
1411 GCPRO2 (obj, printcharfun);
|
|
|
1412
|
|
|
1413 /* If we print an uninterned symbol as part of a complex object and
|
|
|
1414 the flag print-gensym is non-nil, prefix it with #n= to read the
|
|
|
1415 object back with the #n# reader syntax later if needed. */
|
|
|
1416 if (!NILP (Vprint_gensym)
|
|
442
|
1417 /* #### Test whether this produces a noticeable slow-down for
|
|
428
|
1418 printing when print-gensym is non-nil. */
|
|
|
1419 && !EQ (obj, oblookup (Vobarray,
|
|
|
1420 string_data (symbol_name (XSYMBOL (obj))),
|
|
|
1421 string_length (symbol_name (XSYMBOL (obj))))))
|
|
|
1422 {
|
|
|
1423 if (print_depth > 1)
|
|
|
1424 {
|
|
|
1425 Lisp_Object tem = Fassq (obj, Vprint_gensym_alist);
|
|
|
1426 if (CONSP (tem))
|
|
|
1427 {
|
|
|
1428 write_char_internal ("#", printcharfun);
|
|
|
1429 print_internal (XCDR (tem), printcharfun, escapeflag);
|
|
|
1430 write_char_internal ("#", printcharfun);
|
|
446
|
1431 UNGCPRO;
|
|
428
|
1432 return;
|
|
|
1433 }
|
|
|
1434 else
|
|
|
1435 {
|
|
|
1436 if (CONSP (Vprint_gensym_alist))
|
|
|
1437 {
|
|
|
1438 /* Vprint_gensym_alist is exposed to Lisp, so we
|
|
|
1439 have to be careful. */
|
|
|
1440 CHECK_CONS (XCAR (Vprint_gensym_alist));
|
|
|
1441 CHECK_INT (XCDR (XCAR (Vprint_gensym_alist)));
|
|
|
1442 XSETINT (tem, XINT (XCDR (XCAR (Vprint_gensym_alist))) + 1);
|
|
|
1443 }
|
|
|
1444 else
|
|
|
1445 XSETINT (tem, 1);
|
|
|
1446 Vprint_gensym_alist = Fcons (Fcons (obj, tem), Vprint_gensym_alist);
|
|
|
1447
|
|
|
1448 write_char_internal ("#", printcharfun);
|
|
|
1449 print_internal (tem, printcharfun, escapeflag);
|
|
|
1450 write_char_internal ("=", printcharfun);
|
|
|
1451 }
|
|
|
1452 }
|
|
|
1453 write_c_string ("#:", printcharfun);
|
|
|
1454 }
|
|
|
1455
|
|
|
1456 /* Does it look like an integer or a float? */
|
|
|
1457 {
|
|
|
1458 Bufbyte *data = string_data (name);
|
|
|
1459 Bytecount confusing = 0;
|
|
|
1460
|
|
|
1461 if (size == 0)
|
|
|
1462 goto not_yet_confused; /* Really confusing */
|
|
|
1463 else if (isdigit (data[0]))
|
|
|
1464 confusing = 0;
|
|
|
1465 else if (size == 1)
|
|
|
1466 goto not_yet_confused;
|
|
|
1467 else if (data[0] == '-' || data[0] == '+')
|
|
|
1468 confusing = 1;
|
|
|
1469 else
|
|
|
1470 goto not_yet_confused;
|
|
|
1471
|
|
|
1472 for (; confusing < size; confusing++)
|
|
|
1473 {
|
|
|
1474 if (!isdigit (data[confusing]))
|
|
|
1475 {
|
|
|
1476 confusing = 0;
|
|
|
1477 break;
|
|
|
1478 }
|
|
|
1479 }
|
|
|
1480 not_yet_confused:
|
|
|
1481
|
|
|
1482 #ifdef LISP_FLOAT_TYPE
|
|
|
1483 if (!confusing)
|
|
|
1484 /* #### Ugh, this is needlessly complex and slow for what we
|
|
|
1485 need here. It might be a good idea to copy equivalent code
|
|
|
1486 from FSF. --hniksic */
|
|
|
1487 confusing = isfloat_string ((char *) data);
|
|
|
1488 #endif
|
|
|
1489 if (confusing)
|
|
|
1490 write_char_internal ("\\", printcharfun);
|
|
|
1491 }
|
|
|
1492
|
|
|
1493 {
|
|
|
1494 Lisp_Object nameobj;
|
|
|
1495 Bytecount i;
|
|
|
1496 Bytecount last = 0;
|
|
|
1497
|
|
|
1498 XSETSTRING (nameobj, name);
|
|
|
1499 for (i = 0; i < size; i++)
|
|
|
1500 {
|
|
|
1501 switch (string_byte (name, i))
|
|
|
1502 {
|
|
|
1503 case 0: case 1: case 2: case 3:
|
|
|
1504 case 4: case 5: case 6: case 7:
|
|
|
1505 case 8: case 9: case 10: case 11:
|
|
|
1506 case 12: case 13: case 14: case 15:
|
|
|
1507 case 16: case 17: case 18: case 19:
|
|
|
1508 case 20: case 21: case 22: case 23:
|
|
|
1509 case 24: case 25: case 26: case 27:
|
|
|
1510 case 28: case 29: case 30: case 31:
|
|
|
1511 case ' ': case '\"': case '\\': case '\'':
|
|
|
1512 case ';': case '#' : case '(' : case ')':
|
|
|
1513 case ',': case '.' : case '`' :
|
|
|
1514 case '[': case ']' : case '?' :
|
|
|
1515 if (i > last)
|
|
|
1516 output_string (printcharfun, 0, nameobj, last, i - last);
|
|
|
1517 write_char_internal ("\\", printcharfun);
|
|
|
1518 last = i;
|
|
|
1519 }
|
|
|
1520 }
|
|
|
1521 output_string (printcharfun, 0, nameobj, last, size - last);
|
|
|
1522 }
|
|
|
1523 UNGCPRO;
|
|
|
1524 }
|
|
|
1525
|
|
|
1526
|
|
442
|
1527 /* Useful on systems or in places where writing to stdout is unavailable or
|
|
|
1528 not working. */
|
|
428
|
1529
|
|
|
1530 static int alternate_do_pointer;
|
|
|
1531 static char alternate_do_string[5000];
|
|
|
1532
|
|
|
1533 DEFUN ("alternate-debugging-output", Falternate_debugging_output, 1, 1, 0, /*
|
|
|
1534 Append CHARACTER to the array `alternate_do_string'.
|
|
|
1535 This can be used in place of `external-debugging-output' as a function
|
|
|
1536 to be passed to `print'. Before calling `print', set `alternate_do_pointer'
|
|
|
1537 to 0.
|
|
|
1538 */
|
|
|
1539 (character))
|
|
|
1540 {
|
|
|
1541 Bufbyte str[MAX_EMCHAR_LEN];
|
|
|
1542 Bytecount len;
|
|
|
1543 int extlen;
|
|
442
|
1544 const Extbyte *extptr;
|
|
428
|
1545
|
|
|
1546 CHECK_CHAR_COERCE_INT (character);
|
|
|
1547 len = set_charptr_emchar (str, XCHAR (character));
|
|
440
|
1548 TO_EXTERNAL_FORMAT (DATA, (str, len),
|
|
|
1549 ALLOCA, (extptr, extlen),
|
|
|
1550 Qterminal);
|
|
428
|
1551 memcpy (alternate_do_string + alternate_do_pointer, extptr, extlen);
|
|
|
1552 alternate_do_pointer += extlen;
|
|
|
1553 alternate_do_string[alternate_do_pointer] = 0;
|
|
|
1554 return character;
|
|
|
1555 }
|
|
|
1556
|
|
|
1557 DEFUN ("external-debugging-output", Fexternal_debugging_output, 1, 3, 0, /*
|
|
|
1558 Write CHAR-OR-STRING to stderr or stdout.
|
|
|
1559 If optional arg STDOUT-P is non-nil, write to stdout; otherwise, write
|
|
|
1560 to stderr. You can use this function to write directly to the terminal.
|
|
|
1561 This function can be used as the STREAM argument of Fprint() or the like.
|
|
|
1562
|
|
442
|
1563 Under MS Windows, this writes output to the console window (which is
|
|
|
1564 created, if necessary), unless XEmacs is being run noninteractively
|
|
|
1565 \(i.e. using the `-batch' argument).
|
|
|
1566
|
|
428
|
1567 If you have opened a termscript file (using `open-termscript'), then
|
|
|
1568 the output also will be logged to this file.
|
|
|
1569 */
|
|
|
1570 (char_or_string, stdout_p, device))
|
|
|
1571 {
|
|
|
1572 FILE *file = 0;
|
|
|
1573 struct console *con = 0;
|
|
|
1574
|
|
|
1575 if (NILP (device))
|
|
|
1576 {
|
|
|
1577 if (!NILP (stdout_p))
|
|
|
1578 file = stdout;
|
|
|
1579 else
|
|
|
1580 file = stderr;
|
|
|
1581 }
|
|
|
1582 else
|
|
|
1583 {
|
|
|
1584 CHECK_LIVE_DEVICE (device);
|
|
|
1585 if (!DEVICE_TTY_P (XDEVICE (device)) &&
|
|
|
1586 !DEVICE_STREAM_P (XDEVICE (device)))
|
|
563
|
1587 wtaerror ("Must be tty or stream device", device);
|
|
428
|
1588 con = XCONSOLE (DEVICE_CONSOLE (XDEVICE (device)));
|
|
|
1589 if (DEVICE_TTY_P (XDEVICE (device)))
|
|
|
1590 file = 0;
|
|
|
1591 else if (!NILP (stdout_p))
|
|
|
1592 file = CONSOLE_STREAM_DATA (con)->out;
|
|
|
1593 else
|
|
|
1594 file = CONSOLE_STREAM_DATA (con)->err;
|
|
|
1595 }
|
|
|
1596
|
|
|
1597 if (STRINGP (char_or_string))
|
|
|
1598 write_string_to_stdio_stream (file, con,
|
|
|
1599 XSTRING_DATA (char_or_string),
|
|
|
1600 0, XSTRING_LENGTH (char_or_string),
|
|
442
|
1601 Qterminal, 1);
|
|
428
|
1602 else
|
|
|
1603 {
|
|
|
1604 Bufbyte str[MAX_EMCHAR_LEN];
|
|
|
1605 Bytecount len;
|
|
|
1606
|
|
|
1607 CHECK_CHAR_COERCE_INT (char_or_string);
|
|
|
1608 len = set_charptr_emchar (str, XCHAR (char_or_string));
|
|
442
|
1609 write_string_to_stdio_stream (file, con, str, 0, len, Qterminal, 1);
|
|
428
|
1610 }
|
|
|
1611
|
|
|
1612 return char_or_string;
|
|
|
1613 }
|
|
|
1614
|
|
|
1615 DEFUN ("open-termscript", Fopen_termscript, 1, 1, "FOpen termscript file: ", /*
|
|
444
|
1616 Start writing all terminal output to FILENAME as well as the terminal.
|
|
|
1617 FILENAME = nil means just close any termscript file currently open.
|
|
428
|
1618 */
|
|
444
|
1619 (filename))
|
|
428
|
1620 {
|
|
|
1621 /* This function can GC */
|
|
|
1622 if (termscript != 0)
|
|
|
1623 {
|
|
444
|
1624 fclose (termscript);
|
|
|
1625 termscript = 0;
|
|
|
1626 }
|
|
|
1627
|
|
|
1628 if (! NILP (filename))
|
|
|
1629 {
|
|
|
1630 filename = Fexpand_file_name (filename, Qnil);
|
|
|
1631 termscript = fopen ((char *) XSTRING_DATA (filename), "w");
|
|
428
|
1632 if (termscript == NULL)
|
|
563
|
1633 report_file_error ("Opening termscript", filename);
|
|
428
|
1634 }
|
|
|
1635 return Qnil;
|
|
|
1636 }
|
|
|
1637
|
|
|
1638 #if 1
|
|
|
1639 /* Debugging kludge -- unbuffered */
|
|
440
|
1640 static int debug_print_length = 50;
|
|
|
1641 static int debug_print_level = 15;
|
|
|
1642 static int debug_print_readably = -1;
|
|
428
|
1643
|
|
|
1644 static void
|
|
|
1645 debug_print_no_newline (Lisp_Object debug_print_obj)
|
|
|
1646 {
|
|
|
1647 /* This function can GC */
|
|
440
|
1648 int save_print_readably = print_readably;
|
|
|
1649 int save_print_depth = print_depth;
|
|
|
1650 Lisp_Object save_Vprint_length = Vprint_length;
|
|
|
1651 Lisp_Object save_Vprint_level = Vprint_level;
|
|
|
1652 Lisp_Object save_Vinhibit_quit = Vinhibit_quit;
|
|
428
|
1653 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
440
|
1654 GCPRO3 (save_Vprint_level, save_Vprint_length, save_Vinhibit_quit);
|
|
428
|
1655
|
|
|
1656 if (gc_in_progress)
|
|
|
1657 stderr_out ("** gc-in-progress! Bad idea to print anything! **\n");
|
|
|
1658
|
|
|
1659 print_depth = 0;
|
|
440
|
1660 print_readably = debug_print_readably != -1 ? debug_print_readably : 0;
|
|
428
|
1661 print_unbuffered++;
|
|
|
1662 /* Could use unwind-protect, but why bother? */
|
|
|
1663 if (debug_print_length > 0)
|
|
|
1664 Vprint_length = make_int (debug_print_length);
|
|
|
1665 if (debug_print_level > 0)
|
|
|
1666 Vprint_level = make_int (debug_print_level);
|
|
440
|
1667
|
|
428
|
1668 print_internal (debug_print_obj, Qexternal_debugging_output, 1);
|
|
442
|
1669 alternate_do_pointer = 0;
|
|
|
1670 print_internal (debug_print_obj, Qalternate_debugging_output, 1);
|
|
|
1671 #ifdef WIN32_NATIVE
|
|
|
1672 /* Write out to the debugger, as well */
|
|
|
1673 print_internal (debug_print_obj, Qmswindows_debugging_output, 1);
|
|
|
1674 #endif
|
|
440
|
1675
|
|
|
1676 Vinhibit_quit = save_Vinhibit_quit;
|
|
|
1677 Vprint_level = save_Vprint_level;
|
|
|
1678 Vprint_length = save_Vprint_length;
|
|
|
1679 print_depth = save_print_depth;
|
|
|
1680 print_readably = save_print_readably;
|
|
428
|
1681 print_unbuffered--;
|
|
|
1682 UNGCPRO;
|
|
|
1683 }
|
|
|
1684
|
|
|
1685 void
|
|
|
1686 debug_print (Lisp_Object debug_print_obj)
|
|
|
1687 {
|
|
|
1688 debug_print_no_newline (debug_print_obj);
|
|
|
1689 stderr_out ("\n");
|
|
|
1690 }
|
|
|
1691
|
|
|
1692 /* Debugging kludge -- unbuffered */
|
|
|
1693 /* This function provided for the benefit of the debugger. */
|
|
|
1694 void debug_backtrace (void);
|
|
|
1695 void
|
|
|
1696 debug_backtrace (void)
|
|
|
1697 {
|
|
|
1698 /* This function can GC */
|
|
|
1699 int old_print_readably = print_readably;
|
|
|
1700 int old_print_depth = print_depth;
|
|
|
1701 Lisp_Object old_print_length = Vprint_length;
|
|
|
1702 Lisp_Object old_print_level = Vprint_level;
|
|
|
1703 Lisp_Object old_inhibit_quit = Vinhibit_quit;
|
|
|
1704
|
|
|
1705 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
1706 GCPRO3 (old_print_level, old_print_length, old_inhibit_quit);
|
|
|
1707
|
|
|
1708 if (gc_in_progress)
|
|
|
1709 stderr_out ("** gc-in-progress! Bad idea to print anything! **\n");
|
|
|
1710
|
|
|
1711 print_depth = 0;
|
|
|
1712 print_readably = 0;
|
|
|
1713 print_unbuffered++;
|
|
|
1714 /* Could use unwind-protect, but why bother? */
|
|
|
1715 if (debug_print_length > 0)
|
|
|
1716 Vprint_length = make_int (debug_print_length);
|
|
|
1717 if (debug_print_level > 0)
|
|
|
1718 Vprint_level = make_int (debug_print_level);
|
|
|
1719
|
|
|
1720 Fbacktrace (Qexternal_debugging_output, Qt);
|
|
|
1721 stderr_out ("\n");
|
|
|
1722
|
|
|
1723 Vinhibit_quit = old_inhibit_quit;
|
|
|
1724 Vprint_level = old_print_level;
|
|
|
1725 Vprint_length = old_print_length;
|
|
|
1726 print_depth = old_print_depth;
|
|
|
1727 print_readably = old_print_readably;
|
|
|
1728 print_unbuffered--;
|
|
|
1729
|
|
|
1730 UNGCPRO;
|
|
|
1731 }
|
|
|
1732
|
|
|
1733 void
|
|
|
1734 debug_short_backtrace (int length)
|
|
|
1735 {
|
|
|
1736 int first = 1;
|
|
|
1737 struct backtrace *bt = backtrace_list;
|
|
|
1738 stderr_out (" [");
|
|
|
1739 while (length > 0 && bt)
|
|
|
1740 {
|
|
|
1741 if (!first)
|
|
|
1742 {
|
|
|
1743 stderr_out (", ");
|
|
|
1744 }
|
|
|
1745 if (COMPILED_FUNCTIONP (*bt->function))
|
|
|
1746 {
|
|
|
1747 #if defined(COMPILED_FUNCTION_ANNOTATION_HACK)
|
|
|
1748 Lisp_Object ann =
|
|
|
1749 compiled_function_annotation (XCOMPILED_FUNCTION (*bt->function));
|
|
|
1750 #else
|
|
|
1751 Lisp_Object ann = Qnil;
|
|
|
1752 #endif
|
|
|
1753 if (!NILP (ann))
|
|
|
1754 {
|
|
|
1755 stderr_out ("<compiled-function from ");
|
|
|
1756 debug_print_no_newline (ann);
|
|
|
1757 stderr_out (">");
|
|
|
1758 }
|
|
|
1759 else
|
|
|
1760 {
|
|
|
1761 stderr_out ("<compiled-function of unknown origin>");
|
|
|
1762 }
|
|
|
1763 }
|
|
|
1764 else
|
|
|
1765 debug_print_no_newline (*bt->function);
|
|
|
1766 first = 0;
|
|
|
1767 length--;
|
|
|
1768 bt = bt->next;
|
|
|
1769 }
|
|
|
1770 stderr_out ("]\n");
|
|
|
1771 }
|
|
|
1772
|
|
|
1773 #endif /* debugging kludge */
|
|
|
1774
|
|
|
1775
|
|
|
1776 void
|
|
|
1777 syms_of_print (void)
|
|
|
1778 {
|
|
563
|
1779 DEFSYMBOL (Qstandard_output);
|
|
428
|
1780
|
|
563
|
1781 DEFSYMBOL (Qprint_length);
|
|
428
|
1782
|
|
563
|
1783 DEFSYMBOL (Qprint_string_length);
|
|
428
|
1784
|
|
563
|
1785 DEFSYMBOL (Qdisplay_error);
|
|
|
1786 DEFSYMBOL (Qprint_message_label);
|
|
428
|
1787
|
|
|
1788 DEFSUBR (Fprin1);
|
|
|
1789 DEFSUBR (Fprin1_to_string);
|
|
|
1790 DEFSUBR (Fprinc);
|
|
|
1791 DEFSUBR (Fprint);
|
|
|
1792 DEFSUBR (Ferror_message_string);
|
|
|
1793 DEFSUBR (Fdisplay_error);
|
|
|
1794 DEFSUBR (Fterpri);
|
|
|
1795 DEFSUBR (Fwrite_char);
|
|
|
1796 DEFSUBR (Falternate_debugging_output);
|
|
|
1797 DEFSUBR (Fexternal_debugging_output);
|
|
|
1798 DEFSUBR (Fopen_termscript);
|
|
563
|
1799 DEFSYMBOL (Qexternal_debugging_output);
|
|
|
1800 DEFSYMBOL (Qalternate_debugging_output);
|
|
442
|
1801 #ifdef HAVE_MS_WINDOWS
|
|
563
|
1802 DEFSYMBOL (Qmswindows_debugging_output);
|
|
442
|
1803 #endif
|
|
428
|
1804 DEFSUBR (Fwith_output_to_temp_buffer);
|
|
|
1805 }
|
|
|
1806
|
|
|
1807 void
|
|
|
1808 reinit_vars_of_print (void)
|
|
|
1809 {
|
|
|
1810 alternate_do_pointer = 0;
|
|
|
1811 }
|
|
|
1812
|
|
|
1813 void
|
|
|
1814 vars_of_print (void)
|
|
|
1815 {
|
|
|
1816 reinit_vars_of_print ();
|
|
|
1817
|
|
|
1818 DEFVAR_LISP ("standard-output", &Vstandard_output /*
|
|
|
1819 Output stream `print' uses by default for outputting a character.
|
|
|
1820 This may be any function of one argument.
|
|
|
1821 It may also be a buffer (output is inserted before point)
|
|
|
1822 or a marker (output is inserted and the marker is advanced)
|
|
|
1823 or the symbol t (output appears in the minibuffer line).
|
|
|
1824 */ );
|
|
|
1825 Vstandard_output = Qt;
|
|
|
1826
|
|
|
1827 #ifdef LISP_FLOAT_TYPE
|
|
|
1828 DEFVAR_LISP ("float-output-format", &Vfloat_output_format /*
|
|
|
1829 The format descriptor string that lisp uses to print floats.
|
|
|
1830 This is a %-spec like those accepted by `printf' in C,
|
|
|
1831 but with some restrictions. It must start with the two characters `%.'.
|
|
|
1832 After that comes an integer precision specification,
|
|
|
1833 and then a letter which controls the format.
|
|
|
1834 The letters allowed are `e', `f' and `g'.
|
|
|
1835 Use `e' for exponential notation "DIG.DIGITSeEXPT"
|
|
|
1836 Use `f' for decimal point notation "DIGITS.DIGITS".
|
|
|
1837 Use `g' to choose the shorter of those two formats for the number at hand.
|
|
|
1838 The precision in any of these cases is the number of digits following
|
|
|
1839 the decimal point. With `f', a precision of 0 means to omit the
|
|
|
1840 decimal point. 0 is not allowed with `f' or `g'.
|
|
|
1841
|
|
|
1842 A value of nil means to use `%.16g'.
|
|
|
1843
|
|
|
1844 Regardless of the value of `float-output-format', a floating point number
|
|
|
1845 will never be printed in such a way that it is ambiguous with an integer;
|
|
|
1846 that is, a floating-point number will always be printed with a decimal
|
|
|
1847 point and/or an exponent, even if the digits following the decimal point
|
|
|
1848 are all zero. This is to preserve read-equivalence.
|
|
|
1849 */ );
|
|
|
1850 Vfloat_output_format = Qnil;
|
|
|
1851 #endif /* LISP_FLOAT_TYPE */
|
|
|
1852
|
|
|
1853 DEFVAR_LISP ("print-length", &Vprint_length /*
|
|
|
1854 Maximum length of list or vector to print before abbreviating.
|
|
|
1855 A value of nil means no limit.
|
|
|
1856 */ );
|
|
|
1857 Vprint_length = Qnil;
|
|
|
1858
|
|
|
1859 DEFVAR_LISP ("print-string-length", &Vprint_string_length /*
|
|
|
1860 Maximum length of string to print before abbreviating.
|
|
|
1861 A value of nil means no limit.
|
|
|
1862 */ );
|
|
|
1863 Vprint_string_length = Qnil;
|
|
|
1864
|
|
|
1865 DEFVAR_LISP ("print-level", &Vprint_level /*
|
|
|
1866 Maximum depth of list nesting to print before abbreviating.
|
|
|
1867 A value of nil means no limit.
|
|
|
1868 */ );
|
|
|
1869 Vprint_level = Qnil;
|
|
|
1870
|
|
|
1871 DEFVAR_BOOL ("print-escape-newlines", &print_escape_newlines /*
|
|
|
1872 Non-nil means print newlines in strings as backslash-n.
|
|
|
1873 */ );
|
|
|
1874 print_escape_newlines = 0;
|
|
|
1875
|
|
|
1876 DEFVAR_BOOL ("print-readably", &print_readably /*
|
|
|
1877 If non-nil, then all objects will be printed in a readable form.
|
|
|
1878 If an object has no readable representation, then an error is signalled.
|
|
|
1879 When print-readably is true, compiled-function objects will be written in
|
|
|
1880 #[...] form instead of in #<compiled-function [...]> form, and two-element
|
|
|
1881 lists of the form (quote object) will be written as the equivalent 'object.
|
|
|
1882 Do not SET this variable; bind it instead.
|
|
|
1883 */ );
|
|
|
1884 print_readably = 0;
|
|
|
1885
|
|
|
1886 /* #### I think this should default to t. But we'd better wait
|
|
|
1887 until we see that it works out. */
|
|
|
1888 DEFVAR_LISP ("print-gensym", &Vprint_gensym /*
|
|
|
1889 If non-nil, then uninterned symbols will be printed specially.
|
|
|
1890 Uninterned symbols are those which are not present in `obarray', that is,
|
|
|
1891 those which were made with `make-symbol' or by calling `intern' with a
|
|
|
1892 second argument.
|
|
|
1893
|
|
|
1894 When print-gensym is true, such symbols will be preceded by "#:",
|
|
|
1895 which causes the reader to create a new symbol instead of interning
|
|
|
1896 and returning an existing one. Beware: the #: syntax creates a new
|
|
|
1897 symbol each time it is seen, so if you print an object which contains
|
|
|
1898 two pointers to the same uninterned symbol, `read' will not duplicate
|
|
|
1899 that structure.
|
|
|
1900
|
|
|
1901 If the value of `print-gensym' is a cons cell, then in addition
|
|
|
1902 refrain from clearing `print-gensym-alist' on entry to and exit from
|
|
|
1903 printing functions, so that the use of #...# and #...= can carry over
|
|
|
1904 for several separately printed objects.
|
|
|
1905 */ );
|
|
|
1906 Vprint_gensym = Qnil;
|
|
|
1907
|
|
|
1908 DEFVAR_LISP ("print-gensym-alist", &Vprint_gensym_alist /*
|
|
|
1909 Association list of elements (GENSYM . N) to guide use of #N# and #N=.
|
|
|
1910 In each element, GENSYM is an uninterned symbol that has been associated
|
|
|
1911 with #N= for the specified value of N.
|
|
|
1912 */ );
|
|
|
1913 Vprint_gensym_alist = Qnil;
|
|
|
1914
|
|
|
1915 DEFVAR_LISP ("print-message-label", &Vprint_message_label /*
|
|
|
1916 Label for minibuffer messages created with `print'. This should
|
|
|
1917 generally be bound with `let' rather than set. (See `display-message'.)
|
|
|
1918 */ );
|
|
|
1919 Vprint_message_label = Qprint;
|
|
|
1920 }
|
