annotate src/lread.c @ 5167:e374ea766cc1

clean up, rearrange allocation statistics code -------------------- ChangeLog entries follow: -------------------- src/ChangeLog addition: 2010-03-21 Ben Wing <ben@xemacs.org> * alloc.c: * alloc.c (assert_proper_sizing): * alloc.c (c_readonly): * alloc.c (malloced_storage_size): * alloc.c (fixed_type_block_overhead): * alloc.c (lisp_object_storage_size): * alloc.c (inc_lrecord_stats): * alloc.c (dec_lrecord_stats): * alloc.c (pluralize_word): * alloc.c (object_memory_usage_stats): * alloc.c (Fobject_memory_usage): * alloc.c (compute_memusage_stats_length): * alloc.c (disksave_object_finalization_1): * alloc.c (Fgarbage_collect): * mc-alloc.c: * mc-alloc.c (mc_alloced_storage_size): * mc-alloc.h: No functionality change here. Collect the allocations-statistics code that was scattered throughout alloc.c into one place. Add remaining section headings so that all sections have headings clearly identifying the start of the section and its purpose. Expose mc_alloced_storage_size() even when not MEMORY_USAGE_STATS; this fixes build problems and is related to the export of lisp_object_storage_size() and malloced_storage_size() when non-MEMORY_USAGE_STATS in the previous change set.
author Ben Wing <ben@xemacs.org>
date Sun, 21 Mar 2010 04:41:49 -0500
parents a48ef26d87ee
children 71ee43b8a74d
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1 /* Lisp parsing and input streams.
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2 Copyright (C) 1985-1989, 1992-1995 Free Software Foundation, Inc.
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3 Copyright (C) 1995 Tinker Systems.
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4 Copyright (C) 1996, 2001, 2002, 2003, 2010 Ben Wing.
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5
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6 This file is part of XEmacs.
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7
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8 XEmacs is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 2, or (at your option) any
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11 later version.
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12
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13 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with XEmacs; see the file COPYING. If not, write to
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20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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21 Boston, MA 02111-1307, USA. */
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22
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23 /* Synched up with: Mule 2.0, FSF 19.30. */
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24
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25 /* This file has been Mule-ized. */
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26
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27 #include <config.h>
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28 #include "lisp.h"
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29
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30 #include "buffer.h"
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31 #include "bytecode.h"
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32 #include "elhash.h"
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33 #include "file-coding.h"
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34 #include "lstream.h"
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35 #include "opaque.h"
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36 #include "profile.h"
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37 #include "charset.h" /* For Funicode_to_char. */
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38
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39 #include "sysfile.h"
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40 #include "sysfloat.h"
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41 #ifdef WIN32_NATIVE
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42 #include "syswindows.h"
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43 #endif
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44
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45 Lisp_Object Qread_char, Qstandard_input;
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46 Lisp_Object Qvariable_documentation;
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47 #define LISP_BACKQUOTES
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48 #ifdef LISP_BACKQUOTES
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49 /*
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50 Nonzero means inside a new-style backquote
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51 with no surrounding parentheses.
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52 Fread initializes this to zero, so we need not specbind it
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53 or worry about what happens to it when there is an error.
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54
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55 XEmacs:
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56 Nested backquotes are perfectly legal and fail utterly with
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57 this silliness. */
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58 static int new_backquote_flag, old_backquote_flag;
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59 Lisp_Object Qbackquote, Qbacktick, Qcomma, Qcomma_at, Qcomma_dot;
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60 #endif
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61 Lisp_Object Qvariable_domain; /* I18N3 */
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62 Lisp_Object Vvalues, Vstandard_input, Vafter_load_alist;
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63 Lisp_Object Vload_suppress_alist;
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64 Lisp_Object Qload, Qload_internal, Qfset;
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65
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66 /* Hash-table that maps directory names to hashes of their contents. */
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67 static Lisp_Object Vlocate_file_hash_table;
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68
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69 Lisp_Object Qexists, Qreadable, Qwritable, Qexecutable;
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70
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71 /* See read_escape() for an explanation of this. */
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72 #if 0
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73 int fail_on_bucky_bit_character_escapes;
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74 #endif
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75
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76 /* This symbol is also used in fns.c */
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77 #define FEATUREP_SYNTAX
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78
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79 #ifdef FEATUREP_SYNTAX
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80 Lisp_Object Qfeaturep;
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81 #endif
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82
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83 /* non-zero if inside `load' */
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84 int load_in_progress;
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85
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86 /* Whether Fload_internal() should check whether the .el is newer
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87 when loading .elc */
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88 int load_warn_when_source_newer;
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89 /* Whether Fload_internal() should check whether the .elc doesn't exist */
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90 int load_warn_when_source_only;
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91 /* Whether Fload_internal() should ignore .elc files when no suffix is given */
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92 int load_ignore_elc_files;
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93 /* Whether Fload_internal() should ignore out-of-date .elc files when no
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94 suffix is given */
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95 int load_ignore_out_of_date_elc_files;
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96 /* Always display messages showing when a file is loaded, regardless of
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97 whether the flag to `load' tries to suppress them. */
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98 int load_always_display_messages;
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99 /* Show the full path in loading messages. */
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100 int load_show_full_path_in_messages;
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101
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102 /* Search path for files to be loaded. */
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103 Lisp_Object Vload_path;
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104
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105 /* Search path for files when dumping. */
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106 /* Lisp_Object Vdump_load_path; */
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107
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108 /* This is the user-visible association list that maps features to
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109 lists of defs in their load files. */
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110 Lisp_Object Vload_history;
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111
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112 /* This is used to build the load history. */
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113 Lisp_Object Vcurrent_load_list;
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114
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115 /* Name of file actually being read by `load'. */
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116 Lisp_Object Vload_file_name;
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117
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118 /* Same as Vload_file_name but not Lisp-accessible. This ensures that
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119 our #$ checks are reliable. */
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120 Lisp_Object Vload_file_name_internal;
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121
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122 /* Function to use for reading, in `load' and friends. */
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123 Lisp_Object Vload_read_function;
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124
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125 /* The association list of objects read with the #n=object form.
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126 Each member of the list has the form (n . object), and is used to
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127 look up the object for the corresponding #n# construct.
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128 It must be set to nil before all top-level calls to read0. */
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129 Lisp_Object Vread_objects;
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130
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131 /* Nonzero means load should forcibly load all dynamic doc strings. */
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132 /* Note that this always happens (with some special behavior) when
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133 purify_flag is set. */
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134 static int load_force_doc_strings;
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135
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136 /* List of descriptors now open for Fload_internal. */
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137 static Lisp_Object Vload_descriptor_list;
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138
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139 /* In order to implement "load_force_doc_strings", we keep
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140 a list of all the compiled-function objects and such
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141 that we have created in the process of loading this file.
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142 See the rant below.
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143
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144 We specbind this just like Vload_file_name, so there's no
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145 problems with recursive loading. */
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146 static Lisp_Object Vload_force_doc_string_list;
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147
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148 /* A resizing-buffer stream used to temporarily hold data while reading */
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149 static Lisp_Object Vread_buffer_stream;
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150
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151 static int load_byte_code_version;
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152
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153 /* An array describing all known built-in structure types */
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154 static structure_type_dynarr *the_structure_type_dynarr;
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155
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156 #if 0 /* FSF stuff */
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157 /* For use within read-from-string (this reader is non-reentrant!!) */
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158 static int read_from_string_index;
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159 static int read_from_string_limit;
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160 #endif
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161
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162 #if 0 /* More FSF implementation kludges. */
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163 /* In order to implement load-force-doc-string, FSF saves the
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164 #@-quoted string when it's seen, and goes back and retrieves
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165 it later.
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166
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167 This approach is not only kludgy, but it in general won't work
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168 correctly because there's no stack of remembered #@-quoted-strings
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169 and those strings don't generally appear in the file in the same
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170 order as their #$ references. (Yes, that is amazingly stupid too.
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171
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172 It would be trivially easy to always encode the #@ string
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173 [which is a comment, anyway] in the middle of the (#$ . INT) cons
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174 reference. That way, it would be really easy to implement
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175 load-force-doc-string in a non-kludgy way by just retrieving the
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176 string immediately, because it's delivered on a silver platter.)
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177
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178 And finally, this stupid approach doesn't work under Mule, or
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179 under MS-DOS or Windows NT, or under VMS, or any other place
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180 where you either can't do an ftell() or don't get back a byte
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181 count.
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182
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183 Oh, and one more lossage in this approach: If you attempt to
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184 dump any ELC files that were compiled with `byte-compile-dynamic'
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185 (as opposed to just `byte-compile-dynamic-docstring'), you
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186 get hosed. FMH! (as the illustrious JWZ was prone to utter)
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187
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188 The approach we use is clean, solves all of these problems, and is
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189 probably easier to implement anyway. We just save a list of all
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190 the containing objects that have (#$ . INT) conses in them (this
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191 will only be compiled-function objects and lists), and when the
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192 file is finished loading, we go through and fill in all the
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193 doc strings at once. --ben */
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194
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195 /* This contains the last string skipped with #@. */
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196 static char *saved_doc_string;
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197 /* Length of buffer allocated in saved_doc_string. */
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198 static int saved_doc_string_size;
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199 /* Length of actual data in saved_doc_string. */
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200 static int saved_doc_string_length;
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201 /* This is the file position that string came from. */
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202 static int saved_doc_string_position;
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203 #endif
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204
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205 static int locate_file_open_or_access_file (Ibyte *fn, int access_mode);
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206 EXFUN (Fread_from_string, 3);
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207
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208 /* When errors are signaled, the actual readcharfun should not be used
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209 as an argument if it is an lstream, so that lstreams don't escape
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210 to the Lisp level. */
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211 #define READCHARFUN_MAYBE(x) (LSTREAMP (x) \
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212 ? (build_msg_string ("internal input stream")) \
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213 : (x))
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214
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215
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216 static DECLARE_DOESNT_RETURN (read_syntax_error (const char *));
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217
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218 static DOESNT_RETURN
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219 read_syntax_error (const char *string)
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220 {
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221 signal_error (Qinvalid_read_syntax, string, Qunbound);
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222 }
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223
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224 static Lisp_Object
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225 continuable_read_syntax_error (const char *string)
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226 {
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227 return signal_continuable_error (Qinvalid_read_syntax, string, Qunbound);
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228 }
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229
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230
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231 /* Handle unreading and rereading of characters. */
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232 static Ichar
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233 readchar (Lisp_Object readcharfun)
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234 {
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235 /* This function can GC */
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236
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237 if (BUFFERP (readcharfun))
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238 {
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239 Ichar c;
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240 struct buffer *b = XBUFFER (readcharfun);
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241
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242 if (!BUFFER_LIVE_P (b))
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243 invalid_operation ("Reading from killed buffer", Qunbound);
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244
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245 if (BUF_PT (b) >= BUF_ZV (b))
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246 return -1;
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247 c = BUF_FETCH_CHAR (b, BUF_PT (b));
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248 BUF_SET_PT (b, BUF_PT (b) + 1);
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249
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250 return c;
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251 }
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252 else if (LSTREAMP (readcharfun))
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253 {
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254 Ichar c = Lstream_get_ichar (XLSTREAM (readcharfun));
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255 #ifdef DEBUG_XEMACS /* testing Mule */
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256 static int testing_mule = 0; /* Change via debugger */
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257 if (testing_mule)
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258 {
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259 if (c >= 0x20 && c <= 0x7E) stderr_out ("%c", c);
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260 else if (c == '\n') stderr_out ("\\n\n");
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261 else stderr_out ("\\%o ", c);
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262 }
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263 #endif /* testing Mule */
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264 return c;
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265 }
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266 else if (MARKERP (readcharfun))
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267 {
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268 Ichar c;
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269 Charbpos mpos = marker_position (readcharfun);
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270 struct buffer *inbuffer = XMARKER (readcharfun)->buffer;
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271
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272 if (mpos >= BUF_ZV (inbuffer))
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273 return -1;
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274 c = BUF_FETCH_CHAR (inbuffer, mpos);
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275 set_marker_position (readcharfun, mpos + 1);
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276 return c;
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277 }
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278 else
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279 {
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280 Lisp_Object tem = call0 (readcharfun);
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281
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282 if (!CHAR_OR_CHAR_INTP (tem))
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283 return -1;
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284 return XCHAR_OR_CHAR_INT (tem);
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285 }
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286 }
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287
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288 /* Unread the character C in the way appropriate for the stream READCHARFUN.
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289 If the stream is a user function, call it with the char as argument. */
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290
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291 static void
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292 unreadchar (Lisp_Object readcharfun, Ichar c)
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293 {
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294 if (c == -1)
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295 /* Don't back up the pointer if we're unreading the end-of-input mark,
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296 since readchar didn't advance it when we read it. */
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297 ;
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298 else if (BUFFERP (readcharfun))
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299 BUF_SET_PT (XBUFFER (readcharfun), BUF_PT (XBUFFER (readcharfun)) - 1);
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300 else if (LSTREAMP (readcharfun))
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301 {
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302 Lstream_unget_ichar (XLSTREAM (readcharfun), c);
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303 #ifdef DEBUG_XEMACS /* testing Mule */
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304 {
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305 static int testing_mule = 0; /* Set this using debugger */
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306 if (testing_mule)
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307 fprintf (stderr,
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308 (c >= 0x20 && c <= 0x7E) ? "UU%c" :
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309 ((c == '\n') ? "UU\\n\n" : "UU\\%o"), c);
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310 }
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311 #endif
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312 }
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313 else if (MARKERP (readcharfun))
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314 set_marker_position (readcharfun, marker_position (readcharfun) - 1);
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315 else
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316 call1 (readcharfun, make_char (c));
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317 }
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318
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319 static Lisp_Object read0 (Lisp_Object readcharfun);
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320 static Lisp_Object read1 (Lisp_Object readcharfun);
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321 static Lisp_Object read_list (Lisp_Object readcharfun,
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322 Ichar terminator,
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323 int allow_dotted_lists,
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324 int check_for_doc_references);
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325
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326 static void readevalloop (Lisp_Object readcharfun,
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327 Lisp_Object sourcefile,
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328 Lisp_Object (*evalfun) (Lisp_Object),
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329 int printflag);
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330
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331 static Lisp_Object
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332 load_unwind (Lisp_Object stream) /* used as unwind-protect function in load */
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333 {
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334 Lstream_close (XLSTREAM (stream));
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335 return Qnil;
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336 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
337
2548
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
338 /* Check if NONRELOC/RELOC (an absolute filename) is suppressed according
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
339 to load-suppress-alist. */
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
340 static int
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
341 check_if_suppressed (Ibyte *nonreloc, Lisp_Object reloc)
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
342 {
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
343 Bytecount len;
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
344
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
345 if (!NILP (reloc))
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
346 {
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
347 nonreloc = XSTRING_DATA (reloc);
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
348 len = XSTRING_LENGTH (reloc);
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
349 }
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
350 else
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
351 len = qxestrlen (nonreloc);
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
352
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
353 if (len >= 4 && !qxestrcmp_ascii (nonreloc + len - 4, ".elc"))
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
354 len -= 4;
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
355 else if (len >= 3 && !qxestrcmp_ascii (nonreloc + len - 3, ".el"))
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
356 len -= 3;
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
357
2567
bbc3231c4812 [xemacs-hg @ 2005-02-04 11:57:28 by vins]
vins
parents: 2548
diff changeset
358 {
5016
2ade80e8c640 enable more warnings and fix them
Ben Wing <ben@xemacs.org>
parents: 4969
diff changeset
359 EXTERNAL_LIST_LOOP_2 (cons, Vload_suppress_alist)
2567
bbc3231c4812 [xemacs-hg @ 2005-02-04 11:57:28 by vins]
vins
parents: 2548
diff changeset
360 {
5016
2ade80e8c640 enable more warnings and fix them
Ben Wing <ben@xemacs.org>
parents: 4969
diff changeset
361 if (CONSP (cons) && STRINGP (XCAR (cons)))
2567
bbc3231c4812 [xemacs-hg @ 2005-02-04 11:57:28 by vins]
vins
parents: 2548
diff changeset
362 {
5016
2ade80e8c640 enable more warnings and fix them
Ben Wing <ben@xemacs.org>
parents: 4969
diff changeset
363 Lisp_Object name = XCAR (cons);
2ade80e8c640 enable more warnings and fix them
Ben Wing <ben@xemacs.org>
parents: 4969
diff changeset
364 if (XSTRING_LENGTH (name) == len &&
2ade80e8c640 enable more warnings and fix them
Ben Wing <ben@xemacs.org>
parents: 4969
diff changeset
365 !memcmp (XSTRING_DATA (name), nonreloc, len))
2567
bbc3231c4812 [xemacs-hg @ 2005-02-04 11:57:28 by vins]
vins
parents: 2548
diff changeset
366 {
5016
2ade80e8c640 enable more warnings and fix them
Ben Wing <ben@xemacs.org>
parents: 4969
diff changeset
367 struct gcpro gcpro1;
2ade80e8c640 enable more warnings and fix them
Ben Wing <ben@xemacs.org>
parents: 4969
diff changeset
368 Lisp_Object val;
2ade80e8c640 enable more warnings and fix them
Ben Wing <ben@xemacs.org>
parents: 4969
diff changeset
369
2ade80e8c640 enable more warnings and fix them
Ben Wing <ben@xemacs.org>
parents: 4969
diff changeset
370 GCPRO1 (reloc);
2ade80e8c640 enable more warnings and fix them
Ben Wing <ben@xemacs.org>
parents: 4969
diff changeset
371 val = IGNORE_MULTIPLE_VALUES (Feval (XCDR (cons)));
2ade80e8c640 enable more warnings and fix them
Ben Wing <ben@xemacs.org>
parents: 4969
diff changeset
372 UNGCPRO;
2ade80e8c640 enable more warnings and fix them
Ben Wing <ben@xemacs.org>
parents: 4969
diff changeset
373
2ade80e8c640 enable more warnings and fix them
Ben Wing <ben@xemacs.org>
parents: 4969
diff changeset
374 if (!NILP (val))
2ade80e8c640 enable more warnings and fix them
Ben Wing <ben@xemacs.org>
parents: 4969
diff changeset
375 return 1;
2567
bbc3231c4812 [xemacs-hg @ 2005-02-04 11:57:28 by vins]
vins
parents: 2548
diff changeset
376 }
bbc3231c4812 [xemacs-hg @ 2005-02-04 11:57:28 by vins]
vins
parents: 2548
diff changeset
377 }
bbc3231c4812 [xemacs-hg @ 2005-02-04 11:57:28 by vins]
vins
parents: 2548
diff changeset
378 }
bbc3231c4812 [xemacs-hg @ 2005-02-04 11:57:28 by vins]
vins
parents: 2548
diff changeset
379 }
2548
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
380
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
381 return 0;
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
382 }
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
383
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
384 /* The plague is coming.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
385
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
386 Ring around the rosy, pocket full of posy,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
387 Ashes ashes, they all fall down.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
388 */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
389 void
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
390 ebolify_bytecode_constants (Lisp_Object vector)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
391 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
392 int len = XVECTOR_LENGTH (vector);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
393 int i;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
394
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
395 for (i = 0; i < len; i++)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
396 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
397 Lisp_Object el = XVECTOR_DATA (vector)[i];
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
398
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
399 /* We don't check for `eq', `equal', and the others that have
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
400 bytecode opcodes. This might lose if someone passes #'eq or
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
401 something to `funcall', but who would really do that? As
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
402 they say in law, we've made a "good-faith effort" to
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
403 unfuckify ourselves. And doing it this way avoids screwing
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
404 up args to `make-hash-table' and such. As it is, we have to
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
405 add an extra Ebola check in decode_weak_list_type(). --ben */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
406 if (EQ (el, Qassoc)) el = Qold_assoc;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
407 else if (EQ (el, Qdelq)) el = Qold_delq;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
408 #if 0
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
409 /* I think this is a bad idea because it will probably mess
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
410 with keymap code. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
411 else if (EQ (el, Qdelete)) el = Qold_delete;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
412 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
413 else if (EQ (el, Qrassq)) el = Qold_rassq;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
414 else if (EQ (el, Qrassoc)) el = Qold_rassoc;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
415
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
416 XVECTOR_DATA (vector)[i] = el;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
417 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
418 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
419
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
420 static Lisp_Object
558
ed498ef2108b [xemacs-hg @ 2001-05-23 09:59:33 by ben]
ben
parents: 456
diff changeset
421 pas_de_holgazan_ici (int fd, Lisp_Object victim)
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
422 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
423 Lisp_Object tem;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
424 EMACS_INT pos;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
425
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
426 if (!INTP (XCDR (victim)))
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
427 invalid_byte_code ("Bogus doc string reference", victim);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
428 pos = XINT (XCDR (victim));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
429 if (pos < 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
430 pos = -pos; /* kludge to mark a user variable */
814
a634e3b7acc8 [xemacs-hg @ 2002-04-14 12:41:59 by ben]
ben
parents: 800
diff changeset
431 tem = unparesseuxify_doc_string (fd, pos, 0, Vload_file_name_internal, 0);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
432 if (!STRINGP (tem))
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
433 signal_error_1 (Qinvalid_byte_code, tem);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
434 return tem;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
435 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
436
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
437 static Lisp_Object
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
438 load_force_doc_string_unwind (Lisp_Object oldlist)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
439 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
440 struct gcpro gcpro1;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
441 Lisp_Object list = Vload_force_doc_string_list;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
442 Lisp_Object tail;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
443 int fd = XINT (XCAR (Vload_descriptor_list));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
444
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
445 GCPRO1 (list);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
446 /* restore the old value first just in case an error occurs. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
447 Vload_force_doc_string_list = oldlist;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
448
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
449 LIST_LOOP (tail, list)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
450 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
451 Lisp_Object john = Fcar (tail);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
452 if (CONSP (john))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
453 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
454 assert (CONSP (XCAR (john)));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
455 assert (!purify_flag); /* should have been handled in read_list() */
558
ed498ef2108b [xemacs-hg @ 2001-05-23 09:59:33 by ben]
ben
parents: 456
diff changeset
456 XCAR (john) = pas_de_holgazan_ici (fd, XCAR (john));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
457 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
458 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
459 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
460 Lisp_Object doc;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
461
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
462 assert (COMPILED_FUNCTIONP (john));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
463 if (CONSP (XCOMPILED_FUNCTION (john)->instructions))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
464 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
465 struct gcpro ngcpro1;
558
ed498ef2108b [xemacs-hg @ 2001-05-23 09:59:33 by ben]
ben
parents: 456
diff changeset
466 Lisp_Object juan = (pas_de_holgazan_ici
814
a634e3b7acc8 [xemacs-hg @ 2002-04-14 12:41:59 by ben]
ben
parents: 800
diff changeset
467 (fd,
a634e3b7acc8 [xemacs-hg @ 2002-04-14 12:41:59 by ben]
ben
parents: 800
diff changeset
468 XCOMPILED_FUNCTION (john)->instructions));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
469 Lisp_Object ivan;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
470
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
471 NGCPRO1 (juan);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
472 ivan = Fread (juan);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
473 if (!CONSP (ivan))
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
474 invalid_byte_code ("invalid lazy-loaded byte code", ivan);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
475 XCOMPILED_FUNCTION (john)->instructions = XCAR (ivan);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
476 /* v18 or v19 bytecode file. Need to Ebolify. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
477 if (XCOMPILED_FUNCTION (john)->flags.ebolified
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
478 && VECTORP (XCDR (ivan)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
479 ebolify_bytecode_constants (XCDR (ivan));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
480 XCOMPILED_FUNCTION (john)->constants = XCDR (ivan);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
481 NUNGCPRO;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
482 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
483 doc = compiled_function_documentation (XCOMPILED_FUNCTION (john));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
484 if (CONSP (doc))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
485 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
486 assert (!purify_flag); /* should have been handled in
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
487 read_compiled_function() */
558
ed498ef2108b [xemacs-hg @ 2001-05-23 09:59:33 by ben]
ben
parents: 456
diff changeset
488 doc = pas_de_holgazan_ici (fd, doc);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
489 set_compiled_function_documentation (XCOMPILED_FUNCTION (john),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
490 doc);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
491 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
492 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
493 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
494
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
495 if (!NILP (list))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
496 free_list (list);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
497
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
498 UNGCPRO;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
499 return Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
500 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
501
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
502 /* Close all descriptors in use for Fload_internal.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
503 This is used when starting a subprocess. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
504
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
505 void
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
506 close_load_descs (void)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
507 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
508 Lisp_Object tail;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
509 LIST_LOOP (tail, Vload_descriptor_list)
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
510 retry_close (XINT (XCAR (tail)));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
511 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
512
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
513 #ifdef I18N3
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
514 Lisp_Object Vfile_domain;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
515 #endif /* I18N3 */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
516
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
517 DEFUN ("load-internal", Fload_internal, 1, 6, 0, /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
518 Execute a file of Lisp code named FILE; no coding-system frobbing.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
519 This function is identical to `load' except for the handling of the
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
520 CODESYS and USED-CODESYS arguments under XEmacs/Mule. (When Mule
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
521 support is not present, both functions are identical and ignore the
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
522 CODESYS and USED-CODESYS arguments.)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
523
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
524 If support for Mule exists in this Emacs, the file is decoded
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
525 according to CODESYS; if omitted, no conversion happens. If
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
526 USED-CODESYS is non-nil, it should be a symbol, and the actual coding
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
527 system that was used for the decoding is stored into it. It will in
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
528 general be different from CODESYS if CODESYS specifies automatic
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
529 encoding detection or end-of-line detection.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
530 */
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
531 (file, noerror, nomessage, nosuffix, codesys, used_codesys))
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
532 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
533 /* This function can GC */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
534 int fd = -1;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
535 int speccount = specpdl_depth ();
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
536 int source_only = 0;
1123
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
537 /* NEWER and OLDER are filenames w/o directory, used in loading messages
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
538 to e.g. warn of newer .el files when the .elc is being loaded. */
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
539 Lisp_Object newer = Qnil;
1123
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
540 Lisp_Object older = Qnil;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
541 Lisp_Object handler = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
542 Lisp_Object found = Qnil;
1292
f3437b56874d [xemacs-hg @ 2003-02-13 09:57:04 by ben]
ben
parents: 1275
diff changeset
543 Lisp_Object retval;
1123
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
544 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
545 int reading_elc = 0;
780
578cb2932d72 [xemacs-hg @ 2002-03-18 10:07:30 by ben]
ben
parents: 771
diff changeset
546 int from_require = EQ (nomessage, Qrequire);
1261
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
547 int message_p = NILP (nomessage) || load_always_display_messages;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
548 struct stat s1, s2;
1261
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
549 Ibyte *spaces = alloca_ibytes (load_in_progress * 2 + 10);
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
550 int i;
1292
f3437b56874d [xemacs-hg @ 2003-02-13 09:57:04 by ben]
ben
parents: 1275
diff changeset
551 PROFILE_DECLARE ();
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
552
1266
b5a5863da615 [xemacs-hg @ 2003-02-07 00:54:17 by ben]
ben
parents: 1261
diff changeset
553 GCPRO4 (file, newer, older, found);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
554 CHECK_STRING (file);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
555
1292
f3437b56874d [xemacs-hg @ 2003-02-13 09:57:04 by ben]
ben
parents: 1275
diff changeset
556 PROFILE_RECORD_ENTERING_SECTION (Qload_internal);
f3437b56874d [xemacs-hg @ 2003-02-13 09:57:04 by ben]
ben
parents: 1275
diff changeset
557
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
558 /* If file name is magic, call the handler. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
559 handler = Ffind_file_name_handler (file, Qload);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
560 if (!NILP (handler))
1292
f3437b56874d [xemacs-hg @ 2003-02-13 09:57:04 by ben]
ben
parents: 1275
diff changeset
561 {
f3437b56874d [xemacs-hg @ 2003-02-13 09:57:04 by ben]
ben
parents: 1275
diff changeset
562 retval = call5 (handler, Qload, file, noerror, nomessage, nosuffix);
f3437b56874d [xemacs-hg @ 2003-02-13 09:57:04 by ben]
ben
parents: 1275
diff changeset
563 goto done;
f3437b56874d [xemacs-hg @ 2003-02-13 09:57:04 by ben]
ben
parents: 1275
diff changeset
564 }
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
565
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
566 /* Do this after the handler to avoid
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
567 the need to gcpro noerror, nomessage and nosuffix.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
568 (Below here, we care only whether they are nil or not.) */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
569 file = Fsubstitute_in_file_name (file);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
570 if (!NILP (used_codesys))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
571 CHECK_SYMBOL (used_codesys);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
572
1261
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
573 if (noninteractive)
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
574 {
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
575 for (i = 0; i < load_in_progress * 2; i++)
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
576 spaces[i] = ' ';
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
577 spaces[i] = '\0';
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
578 }
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
579 else
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
580 spaces[0] = '\0';
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
581
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
582 /* Avoid weird lossage with null string as arg,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
583 since it would try to load a directory as a Lisp file.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
584 Unix truly sucks. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
585 if (XSTRING_LENGTH (file) > 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
586 {
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
587 Ibyte *foundstr;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
588 int foundlen;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
589
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
590 fd = locate_file (Vload_path, file,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
591 ((!NILP (nosuffix)) ? Qnil :
4952
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
592 build_ascstring (load_ignore_elc_files ? ".el:" :
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
593 ".elc:.el:")),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
594 &found,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
595 -1);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
596
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
597 if (fd < 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
598 {
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
599 if (NILP (noerror))
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
600 signal_error (Qfile_error, "Cannot open load file", file);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
601 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
602 {
1292
f3437b56874d [xemacs-hg @ 2003-02-13 09:57:04 by ben]
ben
parents: 1275
diff changeset
603 retval = Qnil;
f3437b56874d [xemacs-hg @ 2003-02-13 09:57:04 by ben]
ben
parents: 1275
diff changeset
604 goto done;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
605 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
606 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
607
2367
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
608 foundstr = alloca_ibytes (XSTRING_LENGTH (found) + 1);
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
609 qxestrcpy (foundstr, XSTRING_DATA (found));
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
610 foundlen = qxestrlen (foundstr);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
611
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
612 /* The omniscient JWZ thinks this is worthless, but I beg to
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
613 differ. --ben */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
614 if (load_ignore_elc_files)
1123
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
615 newer = Ffile_name_nondirectory (found);
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
616 else if ((load_warn_when_source_newer ||
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
617 load_ignore_out_of_date_elc_files) &&
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
618 !memcmp (".elc", foundstr + foundlen - 4, 4))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
619 {
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
620 if (! qxe_fstat (fd, &s1)) /* can't fail, right? */
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
621 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
622 int result;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
623 /* temporarily hack the 'c' off the end of the filename */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
624 foundstr[foundlen - 1] = '\0';
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
625 result = qxe_stat (foundstr, &s2);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
626 if (result >= 0 &&
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
627 (unsigned) s1.st_mtime < (unsigned) s2.st_mtime)
1123
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
628 {
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
629 /* .elc exists and is out-of-date wrt .el */
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
630 Lisp_Object el_name = make_string (foundstr, foundlen - 1);
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
631 struct gcpro nngcpro1;
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
632 NNGCPRO1 (el_name);
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
633 newer = Ffile_name_nondirectory (el_name);
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
634 if (load_ignore_out_of_date_elc_files)
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
635 {
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
636 int newfd =
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
637 locate_file_open_or_access_file
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
638 (XSTRING_DATA (el_name), -1);
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
639
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
640 if (newfd >= 0)
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
641 {
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
642 older = Ffile_name_nondirectory (found);
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
643 found = el_name;
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
644 retry_close (fd);
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
645 fd = newfd;
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
646 }
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
647 }
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
648 NNUNGCPRO;
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
649 }
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
650 /* put the 'c' back on (kludge-o-rama) */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
651 foundstr[foundlen - 1] = 'c';
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
652 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
653 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
654 else if (load_warn_when_source_only &&
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
655 /* `found' ends in ".el" */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
656 !memcmp (".el", foundstr + foundlen - 3, 3) &&
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
657 /* `file' does not end in ".el" */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
658 memcmp (".el",
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
659 XSTRING_DATA (file) + XSTRING_LENGTH (file) - 3,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
660 3))
1123
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
661 source_only = 1;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
662
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
663 if (!memcmp (".elc", foundstr + foundlen - 4, 4))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
664 reading_elc = 1;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
665 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
666
1123
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
667 #define PRINT_LOADING_MESSAGE_1(loading, done) \
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
668 do { \
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
669 if (load_ignore_elc_files) \
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
670 { \
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
671 if (message_p) \
1261
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
672 message (loading done, spaces, \
1123
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
673 XSTRING_DATA (load_show_full_path_in_messages ? \
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
674 found : newer)); \
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
675 } \
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
676 else if (!NILP (older)) \
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
677 { \
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
678 assert (load_ignore_out_of_date_elc_files); \
1261
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
679 message (loading done " (file %s is out-of-date)", spaces, \
1123
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
680 XSTRING_DATA (load_show_full_path_in_messages ? \
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
681 found : newer), \
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
682 XSTRING_DATA (older)); \
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
683 } \
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
684 else if (!NILP (newer)) \
1261
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
685 message (loading done " (file %s is newer)", spaces, \
1123
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
686 XSTRING_DATA (load_show_full_path_in_messages ? \
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
687 found : file), \
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
688 XSTRING_DATA (newer)); \
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
689 else if (source_only) \
1261
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
690 message (loading done " (file %s.elc does not exist)", spaces, \
1123
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
691 XSTRING_DATA (load_show_full_path_in_messages ? \
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
692 found : file), \
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
693 XSTRING_DATA (Ffile_name_nondirectory (file))); \
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
694 else if (message_p) \
1261
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
695 message (loading done, spaces, \
1123
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
696 XSTRING_DATA (load_show_full_path_in_messages ? \
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
697 found : file)); \
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
698 } while (0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
699
1261
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
700 #define PRINT_LOADING_MESSAGE(done) \
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
701 do { \
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
702 if (from_require) \
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
703 PRINT_LOADING_MESSAGE_1 ("%sRequiring %s...", done); \
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
704 else \
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
705 PRINT_LOADING_MESSAGE_1 ("%sLoading %s...", done); \
780
578cb2932d72 [xemacs-hg @ 2002-03-18 10:07:30 by ben]
ben
parents: 771
diff changeset
706 } while (0)
578cb2932d72 [xemacs-hg @ 2002-03-18 10:07:30 by ben]
ben
parents: 771
diff changeset
707
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
708 PRINT_LOADING_MESSAGE ("");
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
709
4608
1e3cf11fa27d Make #$ truly read-only for Lisp; check this in the test suite.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4483
diff changeset
710 LISP_READONLY (found) = 1;
1e3cf11fa27d Make #$ truly read-only for Lisp; check this in the test suite.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4483
diff changeset
711
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
712 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
713 /* Lisp_Object's must be malloc'ed, not stack-allocated */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
714 Lisp_Object lispstream = Qnil;
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 440
diff changeset
715 const int block_size = 8192;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
716 struct gcpro ngcpro1;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
717
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
718 NGCPRO1 (lispstream);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
719 lispstream = make_filedesc_input_stream (fd, 0, -1, LSTR_CLOSING);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
720 /* 64K is used for normal files; 8K should be OK here because Lisp
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
721 files aren't really all that big. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
722 Lstream_set_buffering (XLSTREAM (lispstream), LSTREAM_BLOCKN_BUFFERED,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
723 block_size);
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
724 lispstream = make_coding_input_stream
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
725 (XLSTREAM (lispstream), get_coding_system_for_text_file (codesys, 1),
800
a5954632b187 [xemacs-hg @ 2002-03-31 08:27:14 by ben]
ben
parents: 793
diff changeset
726 CODING_DECODE, 0);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
727 Lstream_set_buffering (XLSTREAM (lispstream), LSTREAM_BLOCKN_BUFFERED,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
728 block_size);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
729 /* NOTE: Order of these is very important. Don't rearrange them. */
853
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 851
diff changeset
730 internal_bind_int (&load_in_progress, 1 + load_in_progress);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
731 record_unwind_protect (load_unwind, lispstream);
853
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 851
diff changeset
732 internal_bind_lisp_object (&Vload_descriptor_list,
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 851
diff changeset
733 Fcons (make_int (fd), Vload_descriptor_list));
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 851
diff changeset
734 internal_bind_lisp_object (&Vload_file_name_internal, found);
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 851
diff changeset
735 /* this is not a simple internal_bind. */
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
736 record_unwind_protect (load_force_doc_string_unwind,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
737 Vload_force_doc_string_list);
853
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 851
diff changeset
738 Vload_force_doc_string_list = Qnil;
4608
1e3cf11fa27d Make #$ truly read-only for Lisp; check this in the test suite.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4483
diff changeset
739 /* load-file-name is not read-only to Lisp. */
1e3cf11fa27d Make #$ truly read-only for Lisp; check this in the test suite.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4483
diff changeset
740 internal_bind_lisp_object (&Vload_file_name, Fcopy_sequence(found));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
741 #ifdef I18N3
853
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 851
diff changeset
742 /* set it to nil; a call to #'domain will set it. */
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 851
diff changeset
743 internal_bind_lisp_object (&Vfile_domain, Qnil);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
744 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
745
4448
fd8a9a4d81d9 Support #!, to allow XEmacs to be called as a script interpreter.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4329
diff changeset
746 /* Is there a #!? If so, read it, and unread ;!.
fd8a9a4d81d9 Support #!, to allow XEmacs to be called as a script interpreter.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4329
diff changeset
747
fd8a9a4d81d9 Support #!, to allow XEmacs to be called as a script interpreter.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4329
diff changeset
748 GNU implement this by treating any #! anywhere in the source text as
fd8a9a4d81d9 Support #!, to allow XEmacs to be called as a script interpreter.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4329
diff changeset
749 commenting out the whole line. */
fd8a9a4d81d9 Support #!, to allow XEmacs to be called as a script interpreter.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4329
diff changeset
750 {
fd8a9a4d81d9 Support #!, to allow XEmacs to be called as a script interpreter.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4329
diff changeset
751 char shebangp[2];
fd8a9a4d81d9 Support #!, to allow XEmacs to be called as a script interpreter.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4329
diff changeset
752 int num_read;
fd8a9a4d81d9 Support #!, to allow XEmacs to be called as a script interpreter.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4329
diff changeset
753
fd8a9a4d81d9 Support #!, to allow XEmacs to be called as a script interpreter.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4329
diff changeset
754 num_read = Lstream_read (XLSTREAM (lispstream), shebangp,
fd8a9a4d81d9 Support #!, to allow XEmacs to be called as a script interpreter.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4329
diff changeset
755 sizeof(shebangp));
fd8a9a4d81d9 Support #!, to allow XEmacs to be called as a script interpreter.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4329
diff changeset
756 if (sizeof(shebangp) == num_read
fd8a9a4d81d9 Support #!, to allow XEmacs to be called as a script interpreter.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4329
diff changeset
757 && 0 == strncmp("#!", shebangp, sizeof(shebangp)))
fd8a9a4d81d9 Support #!, to allow XEmacs to be called as a script interpreter.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4329
diff changeset
758 {
fd8a9a4d81d9 Support #!, to allow XEmacs to be called as a script interpreter.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4329
diff changeset
759 shebangp[0] = ';';
fd8a9a4d81d9 Support #!, to allow XEmacs to be called as a script interpreter.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4329
diff changeset
760 }
fd8a9a4d81d9 Support #!, to allow XEmacs to be called as a script interpreter.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4329
diff changeset
761
fd8a9a4d81d9 Support #!, to allow XEmacs to be called as a script interpreter.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4329
diff changeset
762 Lstream_unread (XLSTREAM (lispstream), shebangp, num_read);
fd8a9a4d81d9 Support #!, to allow XEmacs to be called as a script interpreter.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4329
diff changeset
763 }
fd8a9a4d81d9 Support #!, to allow XEmacs to be called as a script interpreter.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4329
diff changeset
764
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
765 /* Now determine what sort of ELC file we're reading in. */
853
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 851
diff changeset
766 internal_bind_int (&load_byte_code_version, load_byte_code_version);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
767 if (reading_elc)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
768 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
769 char elc_header[8];
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
770 int num_read;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
771
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
772 num_read = Lstream_read (XLSTREAM (lispstream), elc_header, 8);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
773 if (num_read < 8
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
774 || strncmp (elc_header, ";ELC", 4))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
775 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
776 /* Huh? Probably not a valid ELC file. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
777 load_byte_code_version = 100; /* no Ebolification needed */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
778 Lstream_unread (XLSTREAM (lispstream), elc_header, num_read);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
779 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
780 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
781 load_byte_code_version = elc_header[4];
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
782 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
783 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
784 load_byte_code_version = 100; /* no Ebolification needed */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
785
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
786 readevalloop (lispstream, file, Feval, 0);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
787 if (!NILP (used_codesys))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
788 Fset (used_codesys,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
789 XCODING_SYSTEM_NAME
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
790 (coding_stream_detected_coding_system (XLSTREAM (lispstream))));
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
791 unbind_to (speccount);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
792
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
793 NUNGCPRO;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
794 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
795
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
796 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
797 Lisp_Object tem;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
798 /* #### Disgusting kludge */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
799 /* Run any load-hooks for this file. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
800 /* #### An even more disgusting kludge. There is horrible code */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
801 /* that is relying on the fact that dumped lisp files are found */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
802 /* via `load-path' search. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
803 Lisp_Object name = file;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
804
1123
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
805 if (!NILP (Ffile_name_absolute_p (file)))
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
806 name = Ffile_name_nondirectory (file);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
807
1261
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
808 tem = Fassoc (name, Vafter_load_alist);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
809 if (!NILP (tem))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
810 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
811 struct gcpro ngcpro1;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
812
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
813 NGCPRO1 (tem);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
814 /* Use eval so that errors give a semi-meaningful backtrace. --Stig */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
815 tem = Fcons (Qprogn, Fcdr (tem));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
816 Feval (tem);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
817 NUNGCPRO;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
818 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
819 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
820
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
821 if (!noninteractive)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
822 PRINT_LOADING_MESSAGE ("done");
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
823
1292
f3437b56874d [xemacs-hg @ 2003-02-13 09:57:04 by ben]
ben
parents: 1275
diff changeset
824 retval = Qt;
f3437b56874d [xemacs-hg @ 2003-02-13 09:57:04 by ben]
ben
parents: 1275
diff changeset
825 done:
f3437b56874d [xemacs-hg @ 2003-02-13 09:57:04 by ben]
ben
parents: 1275
diff changeset
826 PROFILE_RECORD_EXITING_SECTION (Qload_internal);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
827 UNGCPRO;
1292
f3437b56874d [xemacs-hg @ 2003-02-13 09:57:04 by ben]
ben
parents: 1275
diff changeset
828 return retval;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
829 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
830
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
831
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
832 /* ------------------------------- */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
833 /* locate_file */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
834 /* ------------------------------- */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
835
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
836 static int
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
837 decode_mode_1 (Lisp_Object mode)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
838 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
839 if (EQ (mode, Qexists))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
840 return F_OK;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
841 else if (EQ (mode, Qexecutable))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
842 return X_OK;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
843 else if (EQ (mode, Qwritable))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
844 return W_OK;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
845 else if (EQ (mode, Qreadable))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
846 return R_OK;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
847 else if (INTP (mode))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
848 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
849 check_int_range (XINT (mode), 0, 7);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
850 return XINT (mode);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
851 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
852 else
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
853 invalid_argument ("Invalid value", mode);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
854 return 0; /* unreached */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
855 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
856
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
857 static int
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
858 decode_mode (Lisp_Object mode)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
859 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
860 if (NILP (mode))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
861 return R_OK;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
862 else if (CONSP (mode))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
863 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
864 int mask = 0;
2367
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
865 EXTERNAL_LIST_LOOP_2 (elt, mode)
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
866 mask |= decode_mode_1 (elt);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
867 return mask;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
868 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
869 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
870 return decode_mode_1 (mode);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
871 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
872
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
873 DEFUN ("locate-file", Flocate_file, 2, 4, 0, /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
874 Search for FILENAME through PATH-LIST.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
875
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
876 If SUFFIXES is non-nil, it should be a list of suffixes to append to
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
877 file name when searching.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
878
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
879 If MODE is non-nil, it should be a symbol or a list of symbol representing
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
880 requirements. Allowed symbols are `exists', `executable', `writable', and
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
881 `readable'. If MODE is nil, it defaults to `readable'.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
882
2548
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
883 Filenames are checked against `load-suppress-alist' to determine if they
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
884 should be ignored.
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
885
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
886 `locate-file' keeps hash tables of the directories it searches through,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
887 in order to speed things up. It tries valiantly to not get confused in
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
888 the face of a changing and unpredictable environment, but can occasionally
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
889 get tripped up. In this case, you will have to call
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
890 `locate-file-clear-hashing' to get it back on track. See that function
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
891 for details.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
892 */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
893 (filename, path_list, suffixes, mode))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
894 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
895 /* This function can GC */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
896 Lisp_Object tp;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
897
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
898 CHECK_STRING (filename);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
899
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
900 if (LISTP (suffixes))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
901 {
2367
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
902 EXTERNAL_LIST_LOOP_2 (elt, suffixes)
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
903 CHECK_STRING (elt);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
904 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
905 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
906 CHECK_STRING (suffixes);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
907
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
908 locate_file (path_list, filename, suffixes, &tp, decode_mode (mode));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
909 return tp;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
910 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
911
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
912 /* Recalculate the hash table for the given string. DIRECTORY should
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
913 better have been through Fexpand_file_name() by now. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
914
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
915 static Lisp_Object
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
916 locate_file_refresh_hashing (Lisp_Object directory)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
917 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
918 Lisp_Object hash =
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
919 make_directory_hash_table (XSTRING_DATA (directory));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
920
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
921 if (!NILP (hash))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
922 Fputhash (directory, hash, Vlocate_file_hash_table);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
923 return hash;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
924 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
925
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
926 /* find the hash table for the given directory, recalculating if necessary */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
927
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
928 static Lisp_Object
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
929 locate_file_find_directory_hash_table (Lisp_Object directory)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
930 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
931 Lisp_Object hash = Fgethash (directory, Vlocate_file_hash_table, Qnil);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
932 if (NILP (hash))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
933 return locate_file_refresh_hashing (directory);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
934 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
935 return hash;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
936 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
937
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
938 /* The SUFFIXES argument in any of the locate_file* functions can be
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
939 nil, a list, or a string (for backward compatibility), with the
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
940 following semantics:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
941
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
942 a) nil - no suffix, just search for file name intact
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
943 (semantically different from "empty suffix list", which
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
944 would be meaningless.)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
945 b) list - list of suffixes to append to file name. Each of these
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
946 must be a string.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
947 c) string - colon-separated suffixes to append to file name (backward
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
948 compatibility).
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
949
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
950 All of this got hairy, so I decided to use a mapper. Calling a
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
951 function for each suffix shouldn't slow things down, since
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
952 locate_file is rarely called with enough suffixes for funcalls to
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
953 make any difference. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
954
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
955 /* Map FUN over SUFFIXES, as described above. FUN will be called with a
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
956 char * containing the current file name, and ARG. Mapping stops when
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
957 FUN returns non-zero. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
958 static void
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
959 locate_file_map_suffixes (Lisp_Object filename, Lisp_Object suffixes,
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
960 int (*fun) (Ibyte *, void *),
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
961 void *arg)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
962 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
963 /* This function can GC */
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
964 Ibyte *fn;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
965 int fn_len, max;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
966
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
967 /* Calculate maximum size of any filename made from
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
968 this path element/specified file name and any possible suffix. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
969 if (CONSP (suffixes))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
970 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
971 /* We must traverse the list, so why not do it right. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
972 Lisp_Object tail;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
973 max = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
974 LIST_LOOP (tail, suffixes)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
975 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
976 if (XSTRING_LENGTH (XCAR (tail)) > max)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
977 max = XSTRING_LENGTH (XCAR (tail));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
978 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
979 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
980 else if (NILP (suffixes))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
981 max = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
982 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
983 /* Just take the easy way out */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
984 max = XSTRING_LENGTH (suffixes);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
985
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
986 fn_len = XSTRING_LENGTH (filename);
2367
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
987 fn = alloca_ibytes (max + fn_len + 1);
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
988 memcpy (fn, XSTRING_DATA (filename), fn_len);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
989
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
990 /* Loop over suffixes. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
991 if (!STRINGP (suffixes))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
992 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
993 if (NILP (suffixes))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
994 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
995 /* Case a) discussed in the comment above. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
996 fn[fn_len] = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
997 if ((*fun) (fn, arg))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
998 return;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
999 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1000 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1001 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1002 /* Case b) */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1003 Lisp_Object tail;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1004 LIST_LOOP (tail, suffixes)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1005 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1006 memcpy (fn + fn_len, XSTRING_DATA (XCAR (tail)),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1007 XSTRING_LENGTH (XCAR (tail)));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1008 fn[fn_len + XSTRING_LENGTH (XCAR (tail))] = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1009 if ((*fun) (fn, arg))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1010 return;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1011 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1012 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1013 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1014 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1015 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1016 /* Case c) */
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
1017 const Ibyte *nsuffix = XSTRING_DATA (suffixes);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1018
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1019 while (1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1020 {
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
1021 Ibyte *esuffix = qxestrchr (nsuffix, ':');
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
1022 Bytecount lsuffix = esuffix ? esuffix - nsuffix :
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
1023 qxestrlen (nsuffix);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1024
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1025 /* Concatenate path element/specified name with the suffix. */
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
1026 qxestrncpy (fn + fn_len, nsuffix, lsuffix);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1027 fn[fn_len + lsuffix] = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1028
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1029 if ((*fun) (fn, arg))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1030 return;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1031
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1032 /* Advance to next suffix. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1033 if (esuffix == 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1034 break;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1035 nsuffix += lsuffix + 1;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1036 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1037 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1038 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1039
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
1040 struct locate_file_in_directory_mapper_closure
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
1041 {
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1042 int fd;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1043 Lisp_Object *storeptr;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1044 int mode;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1045 };
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1046
1123
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1047 /* open() or access() a file to be returned by locate_file(). if
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1048 ACCESS_MODE >= 0, do an access() with that mode, else open(). Does
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1049 various magic, e.g. opening the file read-only and binary and setting
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1050 the close-on-exec flag on the file. */
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1051
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1052 static int
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1053 locate_file_open_or_access_file (Ibyte *fn, int access_mode)
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1054 {
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1055 int val;
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1056
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1057 /* Check that we can access or open it. */
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1058 if (access_mode >= 0)
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1059 val = qxe_access (fn, access_mode);
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1060 else
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1061 {
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1062 val = qxe_open (fn, O_RDONLY | OPEN_BINARY, 0);
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1063
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1064 #ifndef WIN32_NATIVE
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1065 if (val >= 0)
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1066 /* If we actually opened the file, set close-on-exec flag
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1067 on the new descriptor so that subprocesses can't whack
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1068 at it. */
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1069 (void) fcntl (val, F_SETFD, FD_CLOEXEC);
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1070 #endif
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1071 }
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1072
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1073 return val;
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1074 }
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1075
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1076 static int
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
1077 locate_file_in_directory_mapper (Ibyte *fn, void *arg)
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1078 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1079 struct locate_file_in_directory_mapper_closure *closure =
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
1080 (struct locate_file_in_directory_mapper_closure *) arg;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1081 struct stat st;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1082
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1083 /* Ignore file if it's a directory. */
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
1084 if (qxe_stat (fn, &st) >= 0
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1085 && (st.st_mode & S_IFMT) != S_IFDIR)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1086 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1087 /* Check that we can access or open it. */
1123
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
1088 closure->fd = locate_file_open_or_access_file (fn, closure->mode);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1089
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1090 if (closure->fd >= 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1091 {
2548
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
1092 if (!check_if_suppressed (fn, Qnil))
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
1093 {
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
1094 /* We succeeded; return this descriptor and filename. */
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
1095 if (closure->storeptr)
4953
304aebb79cd3 function renamings to track names of char typedefs
Ben Wing <ben@xemacs.org>
parents: 4952
diff changeset
1096 *closure->storeptr = build_istring (fn);
2548
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
1097
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
1098 return 1;
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
1099 }
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1100 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1101 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1102 /* Keep mapping. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1103 return 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1104 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1105
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1106
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1107 /* look for STR in PATH, optionally adding SUFFIXES. DIRECTORY need
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1108 not have been expanded. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1109
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1110 static int
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1111 locate_file_in_directory (Lisp_Object directory, Lisp_Object str,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1112 Lisp_Object suffixes, Lisp_Object *storeptr,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1113 int mode)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1114 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1115 /* This function can GC */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1116 struct locate_file_in_directory_mapper_closure closure;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1117 Lisp_Object filename = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1118 struct gcpro gcpro1, gcpro2, gcpro3;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1119
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1120 GCPRO3 (directory, str, filename);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1121
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1122 filename = Fexpand_file_name (str, directory);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1123 if (NILP (filename) || NILP (Ffile_name_absolute_p (filename)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1124 /* If there are non-absolute elts in PATH (eg ".") */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1125 /* Of course, this could conceivably lose if luser sets
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1126 default-directory to be something non-absolute ... */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1127 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1128 if (NILP (filename))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1129 /* NIL means current directory */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1130 filename = current_buffer->directory;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1131 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1132 filename = Fexpand_file_name (filename,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1133 current_buffer->directory);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1134 if (NILP (Ffile_name_absolute_p (filename)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1135 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1136 /* Give up on this directory! */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1137 UNGCPRO;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1138 return -1;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1139 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1140 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1141
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1142 closure.fd = -1;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1143 closure.storeptr = storeptr;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1144 closure.mode = mode;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1145
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
1146 locate_file_map_suffixes (filename, suffixes,
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
1147 locate_file_in_directory_mapper,
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1148 &closure);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1149
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1150 UNGCPRO;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1151 return closure.fd;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1152 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1153
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1154 /* do the same as locate_file() but don't use any hash tables. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1155
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1156 static int
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1157 locate_file_without_hash (Lisp_Object path, Lisp_Object str,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1158 Lisp_Object suffixes, Lisp_Object *storeptr,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1159 int mode)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1160 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1161 /* This function can GC */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1162 int absolute = !NILP (Ffile_name_absolute_p (str));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1163
2367
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1164 EXTERNAL_LIST_LOOP_2 (elt, path)
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1165 {
2367
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1166 int val = locate_file_in_directory (elt, str, suffixes, storeptr,
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1167 mode);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1168 if (val >= 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1169 return val;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1170 if (absolute)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1171 break;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1172 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1173 return -1;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1174 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1175
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1176 static int
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
1177 locate_file_construct_suffixed_files_mapper (Ibyte *fn, void *arg)
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1178 {
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
1179 Lisp_Object *tail = (Lisp_Object *) arg;
4953
304aebb79cd3 function renamings to track names of char typedefs
Ben Wing <ben@xemacs.org>
parents: 4952
diff changeset
1180 *tail = Fcons (build_istring (fn), *tail);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1181 return 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1182 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1183
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1184 /* Construct a list of all files to search for.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1185 It makes sense to have this despite locate_file_map_suffixes()
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1186 because we need Lisp strings to access the hash-table, and it would
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1187 be inefficient to create them on the fly, again and again for each
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1188 path component. See locate_file(). */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1189
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1190 static Lisp_Object
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1191 locate_file_construct_suffixed_files (Lisp_Object filename,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1192 Lisp_Object suffixes)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1193 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1194 Lisp_Object tail = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1195 struct gcpro gcpro1;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1196 GCPRO1 (tail);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1197
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1198 locate_file_map_suffixes (filename, suffixes,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1199 locate_file_construct_suffixed_files_mapper,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1200 &tail);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1201
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1202 UNGCPRO;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1203 return Fnreverse (tail);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1204 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1205
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1206 DEFUN ("locate-file-clear-hashing", Flocate_file_clear_hashing, 1, 1, 0, /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1207 Clear the hash records for the specified list of directories.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1208 `locate-file' uses a hashing scheme to speed lookup, and will correctly
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1209 track the following environmental changes:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1210
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1211 -- changes of any sort to the list of directories to be searched.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1212 -- addition and deletion of non-shadowing files (see below) from the
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1213 directories in the list.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1214 -- byte-compilation of a .el file into a .elc file.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1215
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1216 `locate-file' will primarily get confused if you add a file that shadows
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1217 \(i.e. has the same name as) another file further down in the directory list.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1218 In this case, you must call `locate-file-clear-hashing'.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1219
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1220 If PATH is t, it means to fully clear all the accumulated hashes. This
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1221 can be used if the internal tables grow too large, or when dumping.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1222 */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1223 (path))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1224 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1225 if (EQ (path, Qt))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1226 Fclrhash (Vlocate_file_hash_table);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1227 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1228 {
2367
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1229 EXTERNAL_LIST_LOOP_2 (elt, path)
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1230 {
2367
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1231 Lisp_Object pathel = Fexpand_file_name (elt, Qnil);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1232 Fremhash (pathel, Vlocate_file_hash_table);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1233 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1234 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1235 return Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1236 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1237
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1238 /* Search for a file whose name is STR, looking in directories
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1239 in the Lisp list PATH, and trying suffixes from SUFFIXES.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1240 SUFFIXES is a list of possible suffixes, or (for backward
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1241 compatibility) a string containing possible suffixes separated by
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1242 colons.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1243 On success, returns a file descriptor. On failure, returns -1.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1244
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1245 MODE nonnegative means don't open the files,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1246 just look for one for which access(file,MODE) succeeds. In this case,
951
93e076dd7825 [xemacs-hg @ 2002-08-02 15:35:49 by james]
james
parents: 867
diff changeset
1247 returns a nonnegative value on success. On failure, returns -1.
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1248
2548
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
1249 If STOREPTR is non-nil, it points to a slot where the name of
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1250 the file actually found should be stored as a Lisp string.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1251 Nil is stored there on failure.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1252
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1253 Called openp() in FSFmacs. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1254
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1255 int
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1256 locate_file (Lisp_Object path, Lisp_Object str, Lisp_Object suffixes,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1257 Lisp_Object *storeptr, int mode)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1258 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1259 /* This function can GC */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1260 Lisp_Object suffixtab = Qnil;
2367
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1261 Lisp_Object pathel_expanded;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1262 int val;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1263 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1264
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1265 if (storeptr)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1266 *storeptr = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1267
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1268 /* Is it really necessary to gcpro path and str? It shouldn't be
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1269 unless some caller has fucked up. There are known instances that
4952
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
1270 call us with build_ascstring("foo:bar") as SUFFIXES, though. */
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1271 GCPRO4 (path, str, suffixes, suffixtab);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1272
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1273 /* if this filename has directory components, it's too complicated
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1274 to try and use the hash tables. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1275 if (!NILP (Ffile_name_directory (str)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1276 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1277 val = locate_file_without_hash (path, str, suffixes, storeptr, mode);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1278 UNGCPRO;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1279 return val;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1280 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1281
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1282 suffixtab = locate_file_construct_suffixed_files (str, suffixes);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1283
2367
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1284 {
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1285 EXTERNAL_LIST_LOOP_2 (pathel, path)
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1286 {
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1287 Lisp_Object hash_table;
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1288 int found = 0;
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1289
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1290 /* If this path element is relative, we have to look by hand. */
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1291 if (NILP (pathel) || NILP (Ffile_name_absolute_p (pathel)))
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1292 {
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1293 val = locate_file_in_directory (pathel, str, suffixes, storeptr,
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1294 mode);
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1295 if (val >= 0)
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1296 {
2367
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1297 UNGCPRO;
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1298 return val;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1299 }
2367
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1300 continue;
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1301 }
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1302
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1303 pathel_expanded = Fexpand_file_name (pathel, Qnil);
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1304 hash_table = locate_file_find_directory_hash_table (pathel_expanded);
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1305
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1306 if (!NILP (hash_table))
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1307 {
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1308 /* Loop over suffixes. */
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1309 LIST_LOOP_2 (elt, suffixtab)
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1310 if (!NILP (Fgethash (elt, hash_table, Qnil)))
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1311 {
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1312 found = 1;
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1313 break;
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1314 }
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1315 }
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1316
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1317 if (found)
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1318 {
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1319 /* This is a likely candidate. Look by hand in this directory
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1320 so we don't get thrown off if someone byte-compiles a file. */
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1321 val = locate_file_in_directory (pathel, str, suffixes, storeptr,
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1322 mode);
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1323 if (val >= 0)
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1324 {
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1325 UNGCPRO;
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1326 return val;
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1327 }
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1328
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1329 /* Hmm ... the file isn't actually there. (Or possibly it's
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1330 a directory ...) So refresh our hashing. */
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1331 locate_file_refresh_hashing (pathel_expanded);
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1332 }
ecf1ebac70d8 [xemacs-hg @ 2004-11-04 23:05:23 by ben]
ben
parents: 2286
diff changeset
1333 }
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1334 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1335
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1336 /* File is probably not there, but check the hard way just in case. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1337 val = locate_file_without_hash (path, str, suffixes, storeptr, mode);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1338 if (val >= 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1339 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1340 /* Sneaky user added a file without telling us. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1341 Flocate_file_clear_hashing (path);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1342 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1343
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1344 UNGCPRO;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1345 return val;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1346 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1347
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1348
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1349 #ifdef LOADHIST
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1350
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1351 /* Merge the list we've accumulated of globals from the current input source
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1352 into the load_history variable. The details depend on whether
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1353 the source has an associated file name or not. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1354
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1355 static void
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1356 build_load_history (int loading, Lisp_Object source)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1357 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1358 REGISTER Lisp_Object tail, prev, newelt;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1359 REGISTER Lisp_Object tem, tem2;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1360 int foundit;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1361
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1362 #if !defined(LOADHIST_DUMPED)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1363 /* Don't bother recording anything for preloaded files. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1364 if (purify_flag)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1365 return;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1366 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1367
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1368 tail = Vload_history;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1369 prev = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1370 foundit = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1371 while (!NILP (tail))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1372 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1373 tem = Fcar (tail);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1374
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1375 /* Find the feature's previous assoc list... */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1376 if (internal_equal (source, Fcar (tem), 0))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1377 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1378 foundit = 1;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1379
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1380 /* If we're loading, remove it. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1381 if (loading)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1382 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1383 if (NILP (prev))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1384 Vload_history = Fcdr (tail);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1385 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1386 Fsetcdr (prev, Fcdr (tail));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1387 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1388
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1389 /* Otherwise, cons on new symbols that are not already members. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1390 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1391 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1392 tem2 = Vcurrent_load_list;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1393
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1394 while (CONSP (tem2))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1395 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1396 newelt = XCAR (tem2);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1397
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1398 if (NILP (Fmemq (newelt, tem)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1399 Fsetcar (tail, Fcons (Fcar (tem),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1400 Fcons (newelt, Fcdr (tem))));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1401
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1402 tem2 = XCDR (tem2);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1403 QUIT;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1404 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1405 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1406 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1407 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1408 prev = tail;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1409 tail = Fcdr (tail);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1410 QUIT;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1411 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1412
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1413 /* If we're loading, cons the new assoc onto the front of load-history,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1414 the most-recently-loaded position. Also do this if we didn't find
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1415 an existing member for the current source. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1416 if (loading || !foundit)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1417 Vload_history = Fcons (Fnreverse (Vcurrent_load_list),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1418 Vload_history);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1419 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1420
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1421 #else /* !LOADHIST */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1422 #define build_load_history(x,y)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1423 #endif /* !LOADHIST */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1424
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1425
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1426 static void
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1427 readevalloop (Lisp_Object readcharfun,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1428 Lisp_Object sourcename,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1429 Lisp_Object (*evalfun) (Lisp_Object),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1430 int printflag)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1431 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1432 /* This function can GC */
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
1433 REGISTER Ichar c;
1849
21549d437f09 [xemacs-hg @ 2004-01-03 21:54:41 by james]
james
parents: 1292
diff changeset
1434 Lisp_Object val = Qnil;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1435 int speccount = specpdl_depth ();
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1436 struct gcpro gcpro1, gcpro2;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1437 struct buffer *b = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1438
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1439 if (BUFFERP (readcharfun))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1440 b = XBUFFER (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1441 else if (MARKERP (readcharfun))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1442 b = XMARKER (readcharfun)->buffer;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1443
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1444 /* Don't do this. It is not necessary, and it needlessly exposes
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1445 READCHARFUN (which can be a stream) to Lisp. --hniksic */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1446 /*specbind (Qstandard_input, readcharfun);*/
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1447
2548
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
1448 internal_bind_lisp_object (&Vcurrent_load_list, Qnil);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1449
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1450 GCPRO2 (val, sourcename);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1451
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1452 LOADHIST_ATTACH (sourcename);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1453
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1454 while (1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1455 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1456 QUIT;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1457
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1458 if (b != 0 && !BUFFER_LIVE_P (b))
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
1459 invalid_operation ("Reading from killed buffer", Qunbound);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1460
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1461 c = readchar (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1462 if (c == ';')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1463 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1464 /* Skip comment */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1465 while ((c = readchar (readcharfun)) != '\n' && c != -1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1466 QUIT;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1467 continue;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1468 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1469 if (c < 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1470 break;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1471
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1472 /* Ignore whitespace here, so we can detect eof. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1473 if (c == ' ' || c == '\t' || c == '\n' || c == '\f' || c == '\r')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1474 continue;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1475
814
a634e3b7acc8 [xemacs-hg @ 2002-04-14 12:41:59 by ben]
ben
parents: 800
diff changeset
1476 unreadchar (readcharfun, c);
a634e3b7acc8 [xemacs-hg @ 2002-04-14 12:41:59 by ben]
ben
parents: 800
diff changeset
1477 Vread_objects = Qnil;
a634e3b7acc8 [xemacs-hg @ 2002-04-14 12:41:59 by ben]
ben
parents: 800
diff changeset
1478 if (NILP (Vload_read_function))
a634e3b7acc8 [xemacs-hg @ 2002-04-14 12:41:59 by ben]
ben
parents: 800
diff changeset
1479 val = read0 (readcharfun);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1480 else
814
a634e3b7acc8 [xemacs-hg @ 2002-04-14 12:41:59 by ben]
ben
parents: 800
diff changeset
1481 val = call1 (Vload_read_function, readcharfun);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1482 val = (*evalfun) (val);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1483 if (printflag)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1484 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1485 Vvalues = Fcons (val, Vvalues);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1486 if (EQ (Vstandard_output, Qt))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1487 Fprin1 (val, Qnil);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1488 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1489 Fprint (val, Qnil);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1490 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1491 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1492
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1493 build_load_history (LSTREAMP (readcharfun) ||
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1494 /* This looks weird, but it's what's in FSFmacs */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1495 (b ? BUF_NARROWED (b) : BUF_NARROWED (current_buffer)),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1496 sourcename);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1497 UNGCPRO;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1498
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
1499 unbind_to (speccount);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1500 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1501
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1502 DEFUN ("eval-buffer", Feval_buffer, 0, 2, "bBuffer: ", /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1503 Execute BUFFER as Lisp code.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1504 Programs can pass two arguments, BUFFER and PRINTFLAG.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1505 BUFFER is the buffer to evaluate (nil means use current buffer).
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1506 PRINTFLAG controls printing of output:
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
1507 nil means discard it; anything else is a stream for printing.
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1508
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1509 If there is no error, point does not move. If there is an error,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1510 point remains at the end of the last character read from the buffer.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1511 */
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
1512 (buffer, printflag))
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1513 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1514 /* This function can GC */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1515 int speccount = specpdl_depth ();
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1516 Lisp_Object tem, buf;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1517
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
1518 if (NILP (buffer))
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1519 buf = Fcurrent_buffer ();
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1520 else
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
1521 buf = Fget_buffer (buffer);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1522 if (NILP (buf))
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
1523 invalid_argument ("No such buffer", Qunbound);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1524
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1525 if (NILP (printflag))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1526 tem = Qsymbolp; /* #### #@[]*&$#*[& SI:NULL-STREAM */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1527 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1528 tem = printflag;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1529 specbind (Qstandard_output, tem);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1530 record_unwind_protect (save_excursion_restore, save_excursion_save ());
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1531 BUF_SET_PT (XBUFFER (buf), BUF_BEGV (XBUFFER (buf)));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1532 readevalloop (buf, XBUFFER (buf)->filename, Feval,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1533 !NILP (printflag));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1534
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
1535 return unbind_to (speccount);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1536 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1537
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1538 #if 0
826
6728e641994e [xemacs-hg @ 2002-05-05 11:30:15 by ben]
ben
parents: 814
diff changeset
1539 DEFUN ("eval-current-buffer", Feval_current_buffer, 0, 1, "", /*
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1540 Execute the current buffer as Lisp code.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1541 Programs can pass argument PRINTFLAG which controls printing of output:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1542 nil means discard it; anything else is stream for print.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1543
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1544 If there is no error, point does not move. If there is an error,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1545 point remains at the end of the last character read from the buffer.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1546 */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1547 (printflag))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1548 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1549 code omitted;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1550 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1551 #endif /* 0 */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1552
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1553 DEFUN ("eval-region", Feval_region, 2, 3, "r", /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1554 Execute the region as Lisp code.
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
1555 When called from programs, expects two arguments START and END
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1556 giving starting and ending indices in the current buffer
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1557 of the text to be executed.
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
1558 Programs can pass third optional argument STREAM which controls output:
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1559 nil means discard it; anything else is stream for printing it.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1560
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1561 If there is no error, point does not move. If there is an error,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1562 point remains at the end of the last character read from the buffer.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1563
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1564 Note: Before evaling the region, this function narrows the buffer to it.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1565 If the code being eval'd should happen to trigger a redisplay you may
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1566 see some text temporarily disappear because of this.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1567 */
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
1568 (start, end, stream))
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1569 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1570 /* This function can GC */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1571 int speccount = specpdl_depth ();
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1572 Lisp_Object tem;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1573 Lisp_Object cbuf = Fcurrent_buffer ();
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1574
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
1575 if (NILP (stream))
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1576 tem = Qsymbolp; /* #### #@[]*&$#*[& SI:NULL-STREAM */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1577 else
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
1578 tem = stream;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1579 specbind (Qstandard_output, tem);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1580
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
1581 if (NILP (stream))
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1582 record_unwind_protect (save_excursion_restore, save_excursion_save ());
844
047d37eb70d7 [xemacs-hg @ 2002-05-16 13:30:23 by ben]
ben
parents: 831
diff changeset
1583 record_unwind_protect (save_restriction_restore,
047d37eb70d7 [xemacs-hg @ 2002-05-16 13:30:23 by ben]
ben
parents: 831
diff changeset
1584 save_restriction_save (current_buffer));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1585
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
1586 /* This both uses start and checks its type. */
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
1587 Fgoto_char (start, cbuf);
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
1588 Fnarrow_to_region (make_int (BUF_BEGV (current_buffer)), end, cbuf);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1589 readevalloop (cbuf, XBUFFER (cbuf)->filename, Feval,
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
1590 !NILP (stream));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1591
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
1592 return unbind_to (speccount);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1593 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1594
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1595 DEFUN ("read", Fread, 0, 1, 0, /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1596 Read one Lisp expression as text from STREAM, return as Lisp object.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1597 If STREAM is nil, use the value of `standard-input' (which see).
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1598 STREAM or the value of `standard-input' may be:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1599 a buffer (read from point and advance it)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1600 a marker (read from where it points and advance it)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1601 a function (call it with no arguments for each character,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1602 call it with a char as argument to push a char back)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1603 a string (takes text from string, starting at the beginning)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1604 t (read text line using minibuffer and use it).
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1605 */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1606 (stream))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1607 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1608 if (NILP (stream))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1609 stream = Vstandard_input;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1610 if (EQ (stream, Qt))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1611 stream = Qread_char;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1612
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1613 Vread_objects = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1614
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1615 if (EQ (stream, Qread_char))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1616 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1617 Lisp_Object val = call1 (Qread_from_minibuffer,
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
1618 build_msg_string ("Lisp expression: "));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1619 return Fcar (Fread_from_string (val, Qnil, Qnil));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1620 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1621
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1622 if (STRINGP (stream))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1623 return Fcar (Fread_from_string (stream, Qnil, Qnil));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1624
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1625 return read0 (stream);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1626 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1627
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1628 DEFUN ("read-from-string", Fread_from_string, 1, 3, 0, /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1629 Read one Lisp expression which is represented as text by STRING.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1630 Returns a cons: (OBJECT-READ . FINAL-STRING-INDEX).
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1631 START and END optionally delimit a substring of STRING from which to read;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1632 they default to 0 and (length STRING) respectively.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1633 */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1634 (string, start, end))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1635 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1636 Bytecount startval, endval;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1637 Lisp_Object tem;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1638 Lisp_Object lispstream = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1639 struct gcpro gcpro1;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1640
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1641 GCPRO1 (lispstream);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1642 CHECK_STRING (string);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1643 get_string_range_byte (string, start, end, &startval, &endval,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1644 GB_HISTORICAL_STRING_BEHAVIOR);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1645 lispstream = make_lisp_string_input_stream (string, startval,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1646 endval - startval);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1647
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1648 Vread_objects = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1649
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1650 tem = read0 (lispstream);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1651 /* Yeah, it's ugly. Gonna make something of it?
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1652 At least our reader is reentrant ... */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1653 tem =
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1654 (Fcons (tem, make_int
793
e38acbeb1cae [xemacs-hg @ 2002-03-29 04:46:17 by ben]
ben
parents: 780
diff changeset
1655 (string_index_byte_to_char
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
1656 (string,
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1657 startval + Lstream_byte_count (XLSTREAM (lispstream))))));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1658 Lstream_delete (XLSTREAM (lispstream));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1659 UNGCPRO;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1660 return tem;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1661 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1662
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1663
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1664
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1665 /* Use this for recursive reads, in contexts where internal tokens
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1666 are not allowed. See also read1(). */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1667 static Lisp_Object
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1668 read0 (Lisp_Object readcharfun)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1669 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1670 Lisp_Object val = read1 (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1671
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1672 if (CONSP (val) && UNBOUNDP (XCAR (val)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1673 {
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
1674 Ichar c = XCHAR (XCDR (val));
853
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 851
diff changeset
1675 free_cons (val);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1676 return Fsignal (Qinvalid_read_syntax,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1677 list1 (Fchar_to_string (make_char (c))));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1678 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1679
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1680 return val;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1681 }
3543
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1682
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1683 /* A Unicode escape, as in C# (though we only permit them in strings
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1684 and characters, not arbitrarily in the source code.) */
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1685 static Ichar
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1686 read_unicode_escape (Lisp_Object readcharfun, int unicode_hex_count)
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1687 {
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1688 REGISTER Ichar i = 0, c;
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1689 REGISTER int count = 0;
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1690 Lisp_Object lisp_char;
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1691 while (++count <= unicode_hex_count)
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1692 {
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1693 c = readchar (readcharfun);
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1694 /* Remember, can't use isdigit(), isalpha() etc. on Ichars */
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1695 if (c >= '0' && c <= '9') i = (i << 4) + (c - '0');
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1696 else if (c >= 'a' && c <= 'f') i = (i << 4) + (c - 'a') + 10;
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1697 else if (c >= 'A' && c <= 'F') i = (i << 4) + (c - 'A') + 10;
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1698 else
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1699 {
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1700 syntax_error ("Non-hex digit used for Unicode escape",
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1701 make_char (c));
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1702 break;
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1703 }
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1704 }
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1705
4268
75d0292c1bff [xemacs-hg @ 2007-11-14 19:41:04 by aidan]
aidan
parents: 4096
diff changeset
1706 if (i >= 0x110000 || i < 0)
4096
1abf84db2c7f [xemacs-hg @ 2007-08-04 20:00:10 by aidan]
aidan
parents: 3666
diff changeset
1707 {
1abf84db2c7f [xemacs-hg @ 2007-08-04 20:00:10 by aidan]
aidan
parents: 3666
diff changeset
1708 syntax_error ("Not a Unicode code point", make_int(i));
1abf84db2c7f [xemacs-hg @ 2007-08-04 20:00:10 by aidan]
aidan
parents: 3666
diff changeset
1709 }
1abf84db2c7f [xemacs-hg @ 2007-08-04 20:00:10 by aidan]
aidan
parents: 3666
diff changeset
1710
3543
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1711 lisp_char = Funicode_to_char(make_int(i), Qnil);
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1712
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1713 if (EQ(Qnil, lisp_char))
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1714 {
4096
1abf84db2c7f [xemacs-hg @ 2007-08-04 20:00:10 by aidan]
aidan
parents: 3666
diff changeset
1715 /* Will happen on non-Mule. Silent corruption is what happens
1abf84db2c7f [xemacs-hg @ 2007-08-04 20:00:10 by aidan]
aidan
parents: 3666
diff changeset
1716 elsewhere, and we used to do that to be consistent, but GNU error,
1abf84db2c7f [xemacs-hg @ 2007-08-04 20:00:10 by aidan]
aidan
parents: 3666
diff changeset
1717 so people writing portable code need to be able to handle that, and
1abf84db2c7f [xemacs-hg @ 2007-08-04 20:00:10 by aidan]
aidan
parents: 3666
diff changeset
1718 given a choice I prefer that behaviour.
1abf84db2c7f [xemacs-hg @ 2007-08-04 20:00:10 by aidan]
aidan
parents: 3666
diff changeset
1719
1abf84db2c7f [xemacs-hg @ 2007-08-04 20:00:10 by aidan]
aidan
parents: 3666
diff changeset
1720 An undesirable aspect to this error is that the code point is shown
1abf84db2c7f [xemacs-hg @ 2007-08-04 20:00:10 by aidan]
aidan
parents: 3666
diff changeset
1721 as a decimal integer, which is mostly unreadable. */
1abf84db2c7f [xemacs-hg @ 2007-08-04 20:00:10 by aidan]
aidan
parents: 3666
diff changeset
1722 syntax_error ("Unsupported Unicode code point", make_int(i));
3543
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1723 }
4096
1abf84db2c7f [xemacs-hg @ 2007-08-04 20:00:10 by aidan]
aidan
parents: 3666
diff changeset
1724
1abf84db2c7f [xemacs-hg @ 2007-08-04 20:00:10 by aidan]
aidan
parents: 3666
diff changeset
1725 return XCHAR(lisp_char);
3543
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1726 }
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1727
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1728
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
1729 static Ichar
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1730 read_escape (Lisp_Object readcharfun)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1731 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1732 /* This function can GC */
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
1733 Ichar c = readchar (readcharfun);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1734
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1735 if (c < 0)
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
1736 signal_error (Qend_of_file, 0, READCHARFUN_MAYBE (readcharfun));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1737
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1738 switch (c)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1739 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1740 case 'a': return '\007';
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1741 case 'b': return '\b';
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1742 case 'd': return 0177;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1743 case 'e': return 033;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1744 case 'f': return '\f';
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1745 case 'n': return '\n';
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1746 case 'r': return '\r';
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1747 case 't': return '\t';
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1748 case 'v': return '\v';
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1749 case '\n': return -1;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1750
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1751 case 'M':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1752 c = readchar (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1753 if (c < 0)
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
1754 signal_error (Qend_of_file, 0, READCHARFUN_MAYBE (readcharfun));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1755 if (c != '-')
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
1756 syntax_error ("Invalid escape character syntax", Qunbound);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1757 c = readchar (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1758 if (c < 0)
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
1759 signal_error (Qend_of_file, 0, READCHARFUN_MAYBE (readcharfun));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1760 if (c == '\\')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1761 c = read_escape (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1762 return c | 0200;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1763
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1764 /* Originally, FSF_KEYS provided a degree of FSF Emacs
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1765 compatibility by defining character "modifiers" alt, super,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1766 hyper and shift to infest the characters (i.e. integers).
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1767
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1768 However, this doesn't cut it for XEmacs 20, which
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1769 distinguishes characters from integers. Without Mule, ?\H-a
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1770 simply returns ?a because every character is clipped into
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1771 0-255. Under Mule it is much worse -- ?\H-a with FSF_KEYS
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1772 produces an illegal character, and moves us to crash-land.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1773
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1774 For these reasons, FSF_KEYS hack is useless and without hope
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1775 of ever working under XEmacs 20. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1776 #ifdef FSF_KEYS
831
5d09ddada9ae [xemacs-hg @ 2002-05-09 07:15:20 by ben]
ben
parents: 826
diff changeset
1777 /* Deleted */
5d09ddada9ae [xemacs-hg @ 2002-05-09 07:15:20 by ben]
ben
parents: 826
diff changeset
1778 #endif
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1779
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1780 case 'C':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1781 c = readchar (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1782 if (c < 0)
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
1783 signal_error (Qend_of_file, 0, READCHARFUN_MAYBE (readcharfun));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1784 if (c != '-')
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
1785 syntax_error ("Invalid escape character syntax", Qunbound);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1786 case '^':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1787 c = readchar (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1788 if (c < 0)
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
1789 signal_error (Qend_of_file, 0, READCHARFUN_MAYBE (readcharfun));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1790 if (c == '\\')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1791 c = read_escape (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1792 /* FSFmacs junk for non-ASCII controls.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1793 Not used here. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1794 if (c == '?')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1795 return 0177;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1796 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1797 return c & (0200 | 037);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1798
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1799 case '0':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1800 case '1':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1801 case '2':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1802 case '3':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1803 case '4':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1804 case '5':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1805 case '6':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1806 case '7':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1807 /* An octal escape, as in ANSI C. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1808 {
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
1809 REGISTER Ichar i = c - '0';
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1810 REGISTER int count = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1811 while (++count < 3)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1812 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1813 if ((c = readchar (readcharfun)) >= '0' && c <= '7')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1814 i = (i << 3) + (c - '0');
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1815 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1816 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1817 unreadchar (readcharfun, c);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1818 break;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1819 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1820 }
831
5d09ddada9ae [xemacs-hg @ 2002-05-09 07:15:20 by ben]
ben
parents: 826
diff changeset
1821 if (i >= 0400)
3367
84ee3ca77e7f [xemacs-hg @ 2006-04-29 14:36:49 by aidan]
aidan
parents: 2857
diff changeset
1822 syntax_error ("Non-ISO-8859-1 character specified with octal escape",
831
5d09ddada9ae [xemacs-hg @ 2002-05-09 07:15:20 by ben]
ben
parents: 826
diff changeset
1823 make_int (i));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1824 return i;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1825 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1826
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1827 case 'x':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1828 /* A hex escape, as in ANSI C, except that we only allow latin-1
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1829 characters to be read this way. What is "\x4e03" supposed to
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1830 mean, anyways, if the internal representation is hidden?
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1831 This is also consistent with the treatment of octal escapes. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1832 {
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
1833 REGISTER Ichar i = 0;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1834 REGISTER int count = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1835 while (++count <= 2)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1836 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1837 c = readchar (readcharfun);
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
1838 /* Remember, can't use isdigit(), isalpha() etc. on Ichars */
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1839 if (c >= '0' && c <= '9') i = (i << 4) + (c - '0');
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1840 else if (c >= 'a' && c <= 'f') i = (i << 4) + (c - 'a') + 10;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1841 else if (c >= 'A' && c <= 'F') i = (i << 4) + (c - 'A') + 10;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1842 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1843 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1844 unreadchar (readcharfun, c);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1845 break;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1846 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1847 }
4483
7869173584fc Error on over-long hex character escapes.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4450
diff changeset
1848
7869173584fc Error on over-long hex character escapes.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4450
diff changeset
1849 if (count == 3)
7869173584fc Error on over-long hex character escapes.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4450
diff changeset
1850 {
7869173584fc Error on over-long hex character escapes.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4450
diff changeset
1851 c = readchar (readcharfun);
7869173584fc Error on over-long hex character escapes.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4450
diff changeset
1852 if ((c >= '0' && c <= '9') ||
7869173584fc Error on over-long hex character escapes.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4450
diff changeset
1853 (c >= 'a' && c <= 'f') ||
7869173584fc Error on over-long hex character escapes.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4450
diff changeset
1854 (c >= 'A' && c <= 'F'))
7869173584fc Error on over-long hex character escapes.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4450
diff changeset
1855 {
7869173584fc Error on over-long hex character escapes.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4450
diff changeset
1856 Lisp_Object args[2];
7869173584fc Error on over-long hex character escapes.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4450
diff changeset
1857
7869173584fc Error on over-long hex character escapes.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4450
diff changeset
1858 if (c >= '0' && c <= '9') i = (i << 4) + (c - '0');
7869173584fc Error on over-long hex character escapes.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4450
diff changeset
1859 else if (c >= 'a' && c <= 'f') i = (i << 4) + (c - 'a') + 10;
7869173584fc Error on over-long hex character escapes.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4450
diff changeset
1860 else if (c >= 'A' && c <= 'F') i = (i << 4) + (c - 'A') + 10;
7869173584fc Error on over-long hex character escapes.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4450
diff changeset
1861
4952
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
1862 args[0] = build_ascstring ("?\\x%x");
4483
7869173584fc Error on over-long hex character escapes.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4450
diff changeset
1863 args[1] = make_int (i);
7869173584fc Error on over-long hex character escapes.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4450
diff changeset
1864 syntax_error ("Overlong hex character escape",
7869173584fc Error on over-long hex character escapes.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4450
diff changeset
1865 Fformat (2, args));
7869173584fc Error on over-long hex character escapes.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4450
diff changeset
1866 }
7869173584fc Error on over-long hex character escapes.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4450
diff changeset
1867 unreadchar (readcharfun, c);
7869173584fc Error on over-long hex character escapes.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4450
diff changeset
1868 }
7869173584fc Error on over-long hex character escapes.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4450
diff changeset
1869
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1870 return i;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1871 }
3367
84ee3ca77e7f [xemacs-hg @ 2006-04-29 14:36:49 by aidan]
aidan
parents: 2857
diff changeset
1872 case 'U':
84ee3ca77e7f [xemacs-hg @ 2006-04-29 14:36:49 by aidan]
aidan
parents: 2857
diff changeset
1873 /* Post-Unicode-2.0: Up to eight hex chars */
3543
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1874 return read_unicode_escape(readcharfun, 8);
3367
84ee3ca77e7f [xemacs-hg @ 2006-04-29 14:36:49 by aidan]
aidan
parents: 2857
diff changeset
1875 case 'u':
3543
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1876 /* Unicode-2.0 and before; four hex chars. */
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
1877 return read_unicode_escape(readcharfun, 4);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1878
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1879 default:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1880 return c;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1881 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1882 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1883
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1884
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1885
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1886 /* read symbol-constituent stuff into `Vread_buffer_stream'. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1887 static Bytecount
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
1888 read_atom_0 (Lisp_Object readcharfun, Ichar firstchar, int *saw_a_backslash)
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1889 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1890 /* This function can GC */
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
1891 Ichar c = ((firstchar) >= 0 ? firstchar : readchar (readcharfun));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1892 Lstream_rewind (XLSTREAM (Vread_buffer_stream));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1893
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1894 *saw_a_backslash = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1895
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1896 while (c > 040 /* #### - comma should be here as should backquote */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1897 && !(c == '\"' || c == '\'' || c == ';'
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1898 || c == '(' || c == ')'
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1899 || c == '[' || c == ']' || c == '#'
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1900 ))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1901 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1902 if (c == '\\')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1903 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1904 c = readchar (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1905 if (c < 0)
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
1906 signal_error (Qend_of_file, 0, READCHARFUN_MAYBE (readcharfun));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1907 *saw_a_backslash = 1;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1908 }
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
1909 Lstream_put_ichar (XLSTREAM (Vread_buffer_stream), c);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1910 QUIT;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1911 c = readchar (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1912 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1913
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1914 if (c >= 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1915 unreadchar (readcharfun, c);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1916 /* blasted terminating 0 */
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
1917 Lstream_put_ichar (XLSTREAM (Vread_buffer_stream), 0);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1918 Lstream_flush (XLSTREAM (Vread_buffer_stream));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1919
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1920 return Lstream_byte_count (XLSTREAM (Vread_buffer_stream)) - 1;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1921 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1922
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
1923 static Lisp_Object parse_integer (const Ibyte *buf, Bytecount len, int base);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1924
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1925 static Lisp_Object
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1926 read_atom (Lisp_Object readcharfun,
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
1927 Ichar firstchar,
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1928 int uninterned_symbol)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1929 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1930 /* This function can GC */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1931 int saw_a_backslash;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1932 Bytecount len = read_atom_0 (readcharfun, firstchar, &saw_a_backslash);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1933 char *read_ptr = (char *)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1934 resizing_buffer_stream_ptr (XLSTREAM (Vread_buffer_stream));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1935
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1936 /* Is it an integer? */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1937 if (! (saw_a_backslash || uninterned_symbol))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1938 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1939 /* If a token had any backslashes in it, it is disqualified from
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1940 being an integer or a float. This means that 123\456 is a
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1941 symbol, as is \123 (which is the way (intern "123") prints).
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1942 Also, if token was preceded by #:, it's always a symbol.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1943 */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1944 char *p = read_ptr + len;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1945 char *p1 = read_ptr;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1946
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1947 if (*p1 == '+' || *p1 == '-') p1++;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1948 if (p1 != p)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1949 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1950 int c;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1951
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1952 while (p1 != p && (c = *p1) >= '0' && c <= '9')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1953 p1++;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1954 /* Integers can have trailing decimal points. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1955 if (p1 > read_ptr && p1 < p && *p1 == '.')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1956 p1++;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1957 if (p1 == p)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1958 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1959 /* It is an integer. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1960 if (p1[-1] == '.')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1961 p1[-1] = '\0';
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1962 #if 0
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1963 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1964 int number = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1965 if (sizeof (int) == sizeof (EMACS_INT))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1966 number = atoi (read_buffer);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1967 else if (sizeof (long) == sizeof (EMACS_INT))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1968 number = atol (read_buffer);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1969 else
2500
3d8143fc88e1 [xemacs-hg @ 2005-01-24 23:33:30 by ben]
ben
parents: 2367
diff changeset
1970 ABORT ();
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1971 return make_int (number);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1972 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1973 #else
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
1974 return parse_integer ((Ibyte *) read_ptr, len, 10);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1975 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1976 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1977 }
1983
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
1978 #ifdef HAVE_RATIO
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
1979 if (isratio_string (read_ptr))
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
1980 {
2013
f2fdfc131770 [xemacs-hg @ 2004-04-14 22:50:52 by james]
james
parents: 2010
diff changeset
1981 /* GMP ratio_set_string has no effect with initial + sign */
2010
a9cdbfb4716e [xemacs-hg @ 2004-04-13 15:38:30 by james]
james
parents: 1995
diff changeset
1982 if (*read_ptr == '+')
a9cdbfb4716e [xemacs-hg @ 2004-04-13 15:38:30 by james]
james
parents: 1995
diff changeset
1983 read_ptr++;
1983
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
1984 ratio_set_string (scratch_ratio, read_ptr, 0);
5088
207dad9e74f7 Signal an error upon reading 1/0.
Jerry James <james@xemacs.org>
parents: 5016
diff changeset
1985 if (bignum_sign (ratio_denominator (scratch_ratio)) != 0) {
207dad9e74f7 Signal an error upon reading 1/0.
Jerry James <james@xemacs.org>
parents: 5016
diff changeset
1986 ratio_canonicalize (scratch_ratio);
207dad9e74f7 Signal an error upon reading 1/0.
Jerry James <james@xemacs.org>
parents: 5016
diff changeset
1987 return Fcanonicalize_number (make_ratio_rt (scratch_ratio));
207dad9e74f7 Signal an error upon reading 1/0.
Jerry James <james@xemacs.org>
parents: 5016
diff changeset
1988 }
207dad9e74f7 Signal an error upon reading 1/0.
Jerry James <james@xemacs.org>
parents: 5016
diff changeset
1989 return Fsignal (Qinvalid_read_syntax,
207dad9e74f7 Signal an error upon reading 1/0.
Jerry James <james@xemacs.org>
parents: 5016
diff changeset
1990 list2 (build_msg_string
207dad9e74f7 Signal an error upon reading 1/0.
Jerry James <james@xemacs.org>
parents: 5016
diff changeset
1991 ("Invalid ratio constant in reader"),
207dad9e74f7 Signal an error upon reading 1/0.
Jerry James <james@xemacs.org>
parents: 5016
diff changeset
1992 make_string ((Ibyte *) read_ptr, len)));
1983
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
1993 }
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
1994 #endif
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1995 if (isfloat_string (read_ptr))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1996 return make_float (atof (read_ptr));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1997 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1998
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1999 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2000 Lisp_Object sym;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2001 if (uninterned_symbol)
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
2002 sym = Fmake_symbol ( make_string ((Ibyte *) read_ptr, len));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2003 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2004 {
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
2005 Lisp_Object name = make_string ((Ibyte *) read_ptr, len);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2006 sym = Fintern (name, Qnil);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2007 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2008 return sym;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2009 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2010 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2011
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2012
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2013 static Lisp_Object
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
2014 parse_integer (const Ibyte *buf, Bytecount len, int base)
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2015 {
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
2016 const Ibyte *lim = buf + len;
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
2017 const Ibyte *p = buf;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2018 EMACS_UINT num = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2019 int negativland = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2020
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2021 if (*p == '-')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2022 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2023 negativland = 1;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2024 p++;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2025 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2026 else if (*p == '+')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2027 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2028 p++;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2029 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2030
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2031 if (p == lim)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2032 goto loser;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2033
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2034 for (; (p < lim) && (*p != '\0'); p++)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2035 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2036 int c = *p;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2037 EMACS_UINT onum;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2038
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2039 if (isdigit (c))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2040 c = c - '0';
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2041 else if (isupper (c))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2042 c = c - 'A' + 10;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2043 else if (islower (c))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2044 c = c - 'a' + 10;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2045 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2046 goto loser;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2047
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2048 if (c < 0 || c >= base)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2049 goto loser;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2050
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2051 onum = num;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2052 num = num * base + c;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2053 if (num < onum)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2054 goto overflow;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2055 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2056
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2057 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2058 EMACS_INT int_result = negativland ? - (EMACS_INT) num : (EMACS_INT) num;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2059 Lisp_Object result = make_int (int_result);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2060 if (num && ((XINT (result) < 0) != negativland))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2061 goto overflow;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2062 if (XINT (result) != int_result)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2063 goto overflow;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2064 return result;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2065 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2066 overflow:
1983
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2067 #ifdef HAVE_BIGNUM
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2068 {
4329
d9eb5ea14f65 Provide %b in #'format; use it for converting between ints and bit vectors.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4268
diff changeset
2069 bignum_set_string (scratch_bignum, (const char *) buf, base);
1983
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2070 return make_bignum_bg (scratch_bignum);
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2071 }
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2072 #else
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2073 return Fsignal (Qinvalid_read_syntax,
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
2074 list3 (build_msg_string
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2075 ("Integer constant overflow in reader"),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2076 make_string (buf, len),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2077 make_int (base)));
1983
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2078 #endif /* HAVE_BIGNUM */
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2079 loser:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2080 return Fsignal (Qinvalid_read_syntax,
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
2081 list3 (build_msg_string
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2082 ("Invalid integer constant in reader"),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2083 make_string (buf, len),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2084 make_int (base)));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2085 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2086
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2087
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2088 static Lisp_Object
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2089 read_integer (Lisp_Object readcharfun, int base)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2090 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2091 /* This function can GC */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2092 int saw_a_backslash;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2093 Bytecount len = read_atom_0 (readcharfun, -1, &saw_a_backslash);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2094 return (parse_integer
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2095 (resizing_buffer_stream_ptr (XLSTREAM (Vread_buffer_stream)),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2096 ((saw_a_backslash)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2097 ? 0 /* make parse_integer signal error */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2098 : len),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2099 base));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2100 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2101
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2102 static Lisp_Object
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2103 read_bit_vector (Lisp_Object readcharfun)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2104 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2105 unsigned_char_dynarr *dyn = Dynarr_new (unsigned_char);
440
8de8e3f6228a Import from CVS: tag r21-2-28
cvs
parents: 428
diff changeset
2106 Lisp_Object val;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2107
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2108 while (1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2109 {
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
2110 unsigned char bit;
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
2111 Ichar c = readchar (readcharfun);
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
2112 if (c == '0')
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
2113 bit = 0;
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
2114 else if (c == '1')
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
2115 bit = 1;
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
2116 else
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
2117 {
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
2118 if (c >= 0)
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
2119 unreadchar (readcharfun, c);
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
2120 break;
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
2121 }
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
2122 Dynarr_add (dyn, bit);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2123 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2124
4967
0d4c9d0f6a8d rewrite dynarr code
Ben Wing <ben@xemacs.org>
parents: 4955
diff changeset
2125 val = make_bit_vector_from_byte_vector (Dynarr_begin (dyn),
440
8de8e3f6228a Import from CVS: tag r21-2-28
cvs
parents: 428
diff changeset
2126 Dynarr_length (dyn));
8de8e3f6228a Import from CVS: tag r21-2-28
cvs
parents: 428
diff changeset
2127 Dynarr_free (dyn);
8de8e3f6228a Import from CVS: tag r21-2-28
cvs
parents: 428
diff changeset
2128
8de8e3f6228a Import from CVS: tag r21-2-28
cvs
parents: 428
diff changeset
2129 return val;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2130 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2131
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2132
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2133
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2134 /* structures */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2135
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2136 struct structure_type *
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2137 define_structure_type (Lisp_Object type,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2138 int (*validate) (Lisp_Object data,
578
190b164ddcac [xemacs-hg @ 2001-05-25 11:26:50 by ben]
ben
parents: 563
diff changeset
2139 Error_Behavior errb),
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2140 Lisp_Object (*instantiate) (Lisp_Object data))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2141 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2142 struct structure_type st;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2143
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2144 st.type = type;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2145 st.keywords = Dynarr_new (structure_keyword_entry);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2146 st.validate = validate;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2147 st.instantiate = instantiate;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2148 Dynarr_add (the_structure_type_dynarr, st);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2149
4844
91b3d00e717f Various cleanups for Dynarr code, from Unicode-internal ws
Ben Wing <ben@xemacs.org>
parents: 4677
diff changeset
2150 return Dynarr_lastp (the_structure_type_dynarr);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2151 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2152
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2153 void
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2154 define_structure_type_keyword (struct structure_type *st, Lisp_Object keyword,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2155 int (*validate) (Lisp_Object keyword,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2156 Lisp_Object value,
578
190b164ddcac [xemacs-hg @ 2001-05-25 11:26:50 by ben]
ben
parents: 563
diff changeset
2157 Error_Behavior errb))
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2158 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2159 struct structure_keyword_entry en;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2160
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2161 en.keyword = keyword;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2162 en.validate = validate;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2163 Dynarr_add (st->keywords, en);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2164 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2165
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2166 static struct structure_type *
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2167 recognized_structure_type (Lisp_Object type)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2168 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2169 int i;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2170
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2171 for (i = 0; i < Dynarr_length (the_structure_type_dynarr); i++)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2172 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2173 struct structure_type *st = Dynarr_atp (the_structure_type_dynarr, i);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2174 if (EQ (st->type, type))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2175 return st;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2176 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2177
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2178 return 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2179 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2180
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2181 static Lisp_Object
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2182 read_structure (Lisp_Object readcharfun)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2183 {
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
2184 Ichar c = readchar (readcharfun);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2185 Lisp_Object list = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2186 Lisp_Object orig_list = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2187 Lisp_Object already_seen = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2188 int keyword_count;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2189 struct structure_type *st;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2190 struct gcpro gcpro1, gcpro2;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2191
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2192 GCPRO2 (orig_list, already_seen);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2193 if (c != '(')
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 440
diff changeset
2194 RETURN_UNGCPRO (continuable_read_syntax_error ("#s not followed by paren"));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2195 list = read_list (readcharfun, ')', 0, 0);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2196 orig_list = list;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2197 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2198 int len = XINT (Flength (list));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2199 if (len == 0)
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 440
diff changeset
2200 RETURN_UNGCPRO (continuable_read_syntax_error
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2201 ("structure type not specified"));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2202 if (!(len & 1))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2203 RETURN_UNGCPRO
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 440
diff changeset
2204 (continuable_read_syntax_error
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2205 ("structures must have alternating keyword/value pairs"));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2206 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2207
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2208 st = recognized_structure_type (XCAR (list));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2209 if (!st)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2210 RETURN_UNGCPRO (Fsignal (Qinvalid_read_syntax,
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
2211 list2 (build_msg_string
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2212 ("unrecognized structure type"),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2213 XCAR (list))));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2214
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2215 list = Fcdr (list);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2216 keyword_count = Dynarr_length (st->keywords);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2217 while (!NILP (list))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2218 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2219 Lisp_Object keyword, value;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2220 int i;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2221 struct structure_keyword_entry *en = NULL;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2222
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2223 keyword = Fcar (list);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2224 list = Fcdr (list);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2225 value = Fcar (list);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2226 list = Fcdr (list);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2227
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2228 if (!NILP (memq_no_quit (keyword, already_seen)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2229 RETURN_UNGCPRO (Fsignal (Qinvalid_read_syntax,
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
2230 list2 (build_msg_string
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2231 ("structure keyword already seen"),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2232 keyword)));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2233
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2234 for (i = 0; i < keyword_count; i++)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2235 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2236 en = Dynarr_atp (st->keywords, i);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2237 if (EQ (keyword, en->keyword))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2238 break;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2239 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2240
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2241 if (i == keyword_count)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2242 RETURN_UNGCPRO (Fsignal (Qinvalid_read_syntax,
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
2243 list2 (build_msg_string
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2244 ("unrecognized structure keyword"),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2245 keyword)));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2246
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2247 if (en->validate && ! (en->validate) (keyword, value, ERROR_ME))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2248 RETURN_UNGCPRO
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2249 (Fsignal (Qinvalid_read_syntax,
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
2250 list3 (build_msg_string
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2251 ("invalid value for structure keyword"),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2252 keyword, value)));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2253
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2254 already_seen = Fcons (keyword, already_seen);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2255 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2256
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2257 if (st->validate && ! (st->validate) (orig_list, ERROR_ME))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2258 RETURN_UNGCPRO (Fsignal (Qinvalid_read_syntax,
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
2259 list2 (build_msg_string
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2260 ("invalid structure initializer"),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2261 orig_list)));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2262
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2263 RETURN_UNGCPRO ((st->instantiate) (XCDR (orig_list)));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2264 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2265
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2266
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2267 static Lisp_Object read_compiled_function (Lisp_Object readcharfun,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2268 int terminator);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2269 static Lisp_Object read_vector (Lisp_Object readcharfun, int terminator);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2270
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2271 /* Get the next character; filter out whitespace and comments */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2272
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
2273 static Ichar
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2274 reader_nextchar (Lisp_Object readcharfun)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2275 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2276 /* This function can GC */
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
2277 Ichar c;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2278
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2279 retry:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2280 QUIT;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2281 c = readchar (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2282 if (c < 0)
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
2283 signal_error (Qend_of_file, 0, READCHARFUN_MAYBE (readcharfun));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2284
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2285 switch (c)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2286 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2287 default:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2288 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2289 /* Ignore whitespace and control characters */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2290 if (c <= 040)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2291 goto retry;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2292 return c;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2293 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2294
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2295 case ';':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2296 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2297 /* Comment */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2298 while ((c = readchar (readcharfun)) >= 0 && c != '\n')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2299 QUIT;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2300 goto retry;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2301 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2302 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2303 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2304
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2305 #if 0
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2306 static Lisp_Object
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2307 list2_pure (int pure, Lisp_Object a, Lisp_Object b)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2308 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2309 return pure ? pure_cons (a, pure_cons (b, Qnil)) : list2 (a, b);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2310 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2311 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2312
3543
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2313 static Lisp_Object
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2314 read_string (Lisp_Object readcharfun, Ichar delim, int raw,
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2315 int honor_unicode)
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2316 {
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2317 #ifdef I18N3
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2318 /* #### If the input stream is translating, then the string
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2319 should be marked as translatable by setting its
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2320 `string-translatable' property to t. .el and .elc files
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2321 normally are translating input streams. See Fgettext()
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2322 and print_internal(). */
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2323 #endif
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2324 Ichar c;
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2325 int cancel = 0;
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2326
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2327 Lstream_rewind(XLSTREAM(Vread_buffer_stream));
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2328 while ((c = readchar(readcharfun)) >= 0 && c != delim)
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2329 {
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2330 if (c == '\\')
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2331 {
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2332 if (raw)
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2333 {
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2334 c = readchar(readcharfun);
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2335 if (honor_unicode && ('u' == c || 'U' == c))
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2336 {
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2337 c = read_unicode_escape(readcharfun,
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2338 'U' == c ? 8 : 4);
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2339 }
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2340 else
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2341 {
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2342 /* For raw strings, insert the
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2343 backslash and the next char, */
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2344 Lstream_put_ichar(XLSTREAM
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2345 (Vread_buffer_stream),
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2346 '\\');
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2347 }
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2348 }
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2349 else
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2350 /* otherwise, backslash escapes the next char. */
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2351 c = read_escape(readcharfun);
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2352 }
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2353 /* c is -1 if \ newline has just been seen */
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2354 if (c == -1)
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2355 {
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2356 if (Lstream_byte_count
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2357 (XLSTREAM(Vread_buffer_stream)) ==
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2358 0)
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2359 cancel = 1;
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2360 }
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2361 else
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2362 Lstream_put_ichar(XLSTREAM
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2363 (Vread_buffer_stream),
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2364 c);
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2365 QUIT;
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2366 }
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2367 if (c < 0)
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2368 return Fsignal(Qend_of_file,
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2369 list1(READCHARFUN_MAYBE(readcharfun)));
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2370
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2371 /* If purifying, and string starts with \ newline,
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2372 return zero instead. This is for doc strings
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2373 that we are really going to find in lib-src/DOC.nn.nn */
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2374 if (purify_flag && NILP(Vinternal_doc_file_name)
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2375 && cancel)
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2376 return Qzero;
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2377
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2378 Lstream_flush(XLSTREAM(Vread_buffer_stream));
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2379 return make_string(resizing_buffer_stream_ptr
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2380 (XLSTREAM(Vread_buffer_stream)),
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2381 Lstream_byte_count(XLSTREAM(Vread_buffer_stream)));
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2382 }
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2383
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2384 static Lisp_Object
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2385 read_raw_string (Lisp_Object readcharfun)
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2386 {
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2387 Ichar c;
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2388 Ichar permit_unicode = 0;
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2389
4952
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2390 do
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2391 {
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2392 c = reader_nextchar (readcharfun);
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2393 switch (c)
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2394 {
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2395 /* #r:engine"my sexy raw string" -- raw string w/ flags*/
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2396 /* case ':': */
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2397 /* #ru"Hi there\u20AC \U000020AC" -- raw string, honouring Unicode. */
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2398 case 'u':
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2399 case 'U':
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2400 permit_unicode = c;
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2401 continue;
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2402
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2403 /* #r"my raw string" -- raw string */
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2404 case '\"':
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2405 return read_string (readcharfun, '\"', 1, permit_unicode);
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2406 /* invalid syntax */
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2407 default:
3543
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2408 {
4952
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2409 if (permit_unicode)
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2410 {
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2411 unreadchar (readcharfun, permit_unicode);
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2412 }
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2413 unreadchar (readcharfun, c);
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2414 return Fsignal (Qinvalid_read_syntax,
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2415 list1 (build_msg_string
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2416 ("unrecognized raw string syntax")));
3543
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2417 }
4952
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2418 }
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2419 } while (1);
3543
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2420 }
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2421
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2422 /* Read the next Lisp object from the stream READCHARFUN and return it.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2423 If the return value is a cons whose car is Qunbound, then read1()
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2424 encountered a misplaced token (e.g. a right bracket, right paren,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2425 or dot followed by a non-number). To filter this stuff out,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2426 use read0(). */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2427
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2428 static Lisp_Object
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2429 read1 (Lisp_Object readcharfun)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2430 {
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
2431 Ichar c;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2432
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2433 retry:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2434 c = reader_nextchar (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2435
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2436 switch (c)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2437 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2438 case '(':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2439 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2440 #ifdef LISP_BACKQUOTES /* old backquote compatibility in lisp reader */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2441 /* if this is disabled, then other code in eval.c must be enabled */
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
2442 Ichar ch = reader_nextchar (readcharfun);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2443 switch (ch)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2444 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2445 case '`':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2446 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2447 Lisp_Object tem;
853
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 851
diff changeset
2448 int speccount = internal_bind_int (&old_backquote_flag,
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 851
diff changeset
2449 1 + old_backquote_flag);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2450 tem = read0 (readcharfun);
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
2451 unbind_to (speccount);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2452 ch = reader_nextchar (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2453 if (ch != ')')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2454 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2455 unreadchar (readcharfun, ch);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2456 return Fsignal (Qinvalid_read_syntax,
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
2457 list1 (build_msg_string
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2458 ("Weird old-backquote syntax")));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2459 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2460 return list2 (Qbacktick, tem);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2461 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2462 case ',':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2463 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2464 if (old_backquote_flag)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2465 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2466 Lisp_Object tem, comma_type;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2467 ch = readchar (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2468 if (ch == '@')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2469 comma_type = Qcomma_at;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2470 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2471 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2472 if (ch >= 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2473 unreadchar (readcharfun, ch);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2474 comma_type = Qcomma;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2475 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2476 tem = read0 (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2477 ch = reader_nextchar (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2478 if (ch != ')')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2479 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2480 unreadchar (readcharfun, ch);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2481 return Fsignal (Qinvalid_read_syntax,
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
2482 list1 (build_msg_string
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2483 ("Weird old-backquote syntax")));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2484 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2485 return list2 (comma_type, tem);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2486 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2487 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2488 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2489 unreadchar (readcharfun, ch);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2490 #if 0
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2491 return Fsignal (Qinvalid_read_syntax,
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
2492 list1 (build_msg_string ("Comma outside of backquote")));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2493 #else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2494 /* #### - yuck....but this is reverse compatible. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2495 /* mostly this is required by edebug, which does its own
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2496 annotated reading. We need to have an annotated_read
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2497 function that records (with markers) the buffer
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2498 positions of the elements that make up lists, then that
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2499 can be used in edebug and bytecomp and the check above
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2500 can go back in. --Stig */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2501 break;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2502 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2503 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2504 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2505 default:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2506 unreadchar (readcharfun, ch);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2507 } /* switch(ch) */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2508 #endif /* old backquote crap... */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2509 return read_list (readcharfun, ')', 1, 1);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2510 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2511 case '[':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2512 return read_vector (readcharfun, ']');
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2513
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2514 case ')':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2515 case ']':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2516 /* #### - huh? these don't do what they seem... */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2517 return noseeum_cons (Qunbound, make_char (c));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2518 case '.':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2519 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2520 /* If a period is followed by a number, then we should read it
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2521 as a floating point number. Otherwise, it denotes a dotted
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2522 pair.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2523 */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2524 c = readchar (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2525 unreadchar (readcharfun, c);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2526
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
2527 /* Can't use isdigit on Ichars */
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2528 if (c < '0' || c > '9')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2529 return noseeum_cons (Qunbound, make_char ('.'));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2530
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2531 /* Note that read_atom will loop
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2532 at least once, assuring that we will not try to UNREAD
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2533 two characters in a row.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2534 (I think this doesn't matter anymore because there should
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2535 be no more danger in unreading multiple characters) */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2536 return read_atom (readcharfun, '.', 0);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2537 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2538
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2539 case '#':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2540 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2541 c = readchar (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2542 switch (c)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2543 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2544 #if 0 /* FSFmacs silly char-table syntax */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2545 case '^':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2546 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2547 #if 0 /* FSFmacs silly bool-vector syntax */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2548 case '&':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2549 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2550 /* "#["-- byte-code constant syntax */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2551 /* purecons #[...] syntax */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2552 case '[': return read_compiled_function (readcharfun, ']'
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2553 /*, purify_flag */ );
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2554 /* "#:"-- gensym syntax */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2555 case ':': return read_atom (readcharfun, -1, 1);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2556 /* #'x => (function x) */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2557 case '\'': return list2 (Qfunction, read0 (readcharfun));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2558 #if 0
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2559 /* RMS uses this syntax for fat-strings.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2560 If we use it for vectors, then obscure bugs happen.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2561 */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2562 /* "#(" -- Scheme/CL vector syntax */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2563 case '(': return read_vector (readcharfun, ')');
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2564 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2565 #if 0 /* FSFmacs */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2566 case '(':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2567 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2568 Lisp_Object tmp;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2569 struct gcpro gcpro1;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2570
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2571 /* Read the string itself. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2572 tmp = read1 (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2573 if (!STRINGP (tmp))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2574 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2575 if (CONSP (tmp) && UNBOUNDP (XCAR (tmp)))
853
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 851
diff changeset
2576 free_cons (tmp);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2577 return Fsignal (Qinvalid_read_syntax,
4952
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2578 list1 (build_ascstring ("#")));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2579 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2580 GCPRO1 (tmp);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2581 /* Read the intervals and their properties. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2582 while (1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2583 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2584 Lisp_Object beg, end, plist;
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
2585 Ichar ch;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2586 int invalid = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2587
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2588 beg = read1 (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2589 if (CONSP (beg) && UNBOUNDP (XCAR (beg)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2590 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2591 ch = XCHAR (XCDR (beg));
853
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 851
diff changeset
2592 free_cons (beg);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2593 if (ch == ')')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2594 break;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2595 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2596 invalid = 1;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2597 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2598 if (!invalid)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2599 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2600 end = read1 (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2601 if (CONSP (end) && UNBOUNDP (XCAR (end)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2602 {
853
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 851
diff changeset
2603 free_cons (end);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2604 invalid = 1;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2605 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2606 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2607 if (!invalid)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2608 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2609 plist = read1 (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2610 if (CONSP (plist) && UNBOUNDP (XCAR (plist)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2611 {
853
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 851
diff changeset
2612 free_cons (plist);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2613 invalid = 1;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2614 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2615 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2616 if (invalid)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2617 RETURN_UNGCPRO
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2618 (Fsignal (Qinvalid_read_syntax,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2619 list2
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
2620 (build_msg_string ("invalid string property list"),
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2621 XCDR (plist))));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2622 Fset_text_properties (beg, end, plist, tmp);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2623 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2624 UNGCPRO;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2625 return tmp;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2626 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2627 #endif /* 0 */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2628 case '@':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2629 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2630 /* #@NUMBER is used to skip NUMBER following characters.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2631 That's used in .elc files to skip over doc strings
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2632 and function definitions. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2633 int i, nskip = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2634
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2635 /* Read a decimal integer. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2636 while ((c = readchar (readcharfun)) >= 0
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2637 && c >= '0' && c <= '9')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2638 nskip = (10 * nskip) + (c - '0');
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2639 if (c >= 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2640 unreadchar (readcharfun, c);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2641
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2642 /* FSF has code here that maybe caches the skipped
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2643 string. See above for why this is totally
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2644 losing. We handle this differently. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2645
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2646 /* Skip that many characters. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2647 for (i = 0; i < nskip && c >= 0; i++)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2648 c = readchar (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2649
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2650 goto retry;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2651 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2652 case '$': return Vload_file_name_internal;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2653 /* bit vectors */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2654 case '*': return read_bit_vector (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2655 /* #o10 => 8 -- octal constant syntax */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2656 case 'o': return read_integer (readcharfun, 8);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2657 /* #xdead => 57005 -- hex constant syntax */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2658 case 'x': return read_integer (readcharfun, 16);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2659 /* #b010 => 2 -- binary constant syntax */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2660 case 'b': return read_integer (readcharfun, 2);
3543
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2661 /* #r"raw\stringt" -- raw string syntax */
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2662 case 'r': return read_raw_string(readcharfun);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2663 /* #s(foobar key1 val1 key2 val2) -- structure syntax */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2664 case 's': return read_structure (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2665 case '<':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2666 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2667 unreadchar (readcharfun, c);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2668 return Fsignal (Qinvalid_read_syntax,
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
2669 list1 (build_msg_string ("Cannot read unreadable object")));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2670 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2671 #ifdef FEATUREP_SYNTAX
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2672 case '+':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2673 case '-':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2674 {
456
e7ef97881643 Import from CVS: tag r21-2-43
cvs
parents: 444
diff changeset
2675 Lisp_Object feature_exp, obj, tem;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2676 struct gcpro gcpro1, gcpro2;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2677
456
e7ef97881643 Import from CVS: tag r21-2-43
cvs
parents: 444
diff changeset
2678 feature_exp = read0(readcharfun);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2679 obj = read0(readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2680
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2681 /* the call to `featurep' may GC. */
456
e7ef97881643 Import from CVS: tag r21-2-43
cvs
parents: 444
diff changeset
2682 GCPRO2 (feature_exp, obj);
e7ef97881643 Import from CVS: tag r21-2-43
cvs
parents: 444
diff changeset
2683 tem = call1 (Qfeaturep, feature_exp);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2684 UNGCPRO;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2685
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2686 if (c == '+' && NILP(tem)) goto retry;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2687 if (c == '-' && !NILP(tem)) goto retry;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2688 return obj;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2689 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2690 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2691 case '0': case '1': case '2': case '3': case '4':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2692 case '5': case '6': case '7': case '8': case '9':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2693 /* Reader forms that can reuse previously read objects. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2694 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2695 int n = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2696 Lisp_Object found;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2697
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2698 /* Using read_integer() here is impossible, because it
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2699 chokes on `='. Using parse_integer() is too hard.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2700 So we simply read it in, and ignore overflows, which
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2701 is safe. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2702 while (c >= '0' && c <= '9')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2703 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2704 n *= 10;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2705 n += c - '0';
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2706 c = readchar (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2707 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2708 found = assq_no_quit (make_int (n), Vread_objects);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2709 if (c == '=')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2710 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2711 /* #n=object returns object, but associates it with
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2712 n for #n#. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2713 Lisp_Object obj;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2714 if (CONSP (found))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2715 return Fsignal (Qinvalid_read_syntax,
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
2716 list2 (build_msg_string
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2717 ("Multiply defined symbol label"),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2718 make_int (n)));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2719 obj = read0 (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2720 Vread_objects = Fcons (Fcons (make_int (n), obj),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2721 Vread_objects);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2722 return obj;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2723 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2724 else if (c == '#')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2725 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2726 /* #n# returns a previously read object. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2727 if (CONSP (found))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2728 return XCDR (found);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2729 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2730 return Fsignal (Qinvalid_read_syntax,
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
2731 list2 (build_msg_string
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2732 ("Undefined symbol label"),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2733 make_int (n)));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2734 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2735 return Fsignal (Qinvalid_read_syntax,
4952
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2736 list1 (build_ascstring ("#")));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2737 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2738 default:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2739 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2740 unreadchar (readcharfun, c);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2741 return Fsignal (Qinvalid_read_syntax,
4952
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
2742 list1 (build_ascstring ("#")));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2743 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2744 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2745 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2746
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2747 /* Quote */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2748 case '\'': return list2 (Qquote, read0 (readcharfun));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2749
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2750 #ifdef LISP_BACKQUOTES
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2751 case '`':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2752 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2753 Lisp_Object tem;
853
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 851
diff changeset
2754 int speccount = internal_bind_int (&new_backquote_flag,
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 851
diff changeset
2755 1 + new_backquote_flag);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2756 tem = read0 (readcharfun);
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
2757 unbind_to (speccount);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2758 return list2 (Qbackquote, tem);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2759 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2760
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2761 case ',':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2762 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2763 if (new_backquote_flag)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2764 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2765 Lisp_Object comma_type = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2766 int ch = readchar (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2767
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2768 if (ch == '@')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2769 comma_type = Qcomma_at;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2770 else if (ch == '.')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2771 comma_type = Qcomma_dot;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2772 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2773 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2774 if (ch >= 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2775 unreadchar (readcharfun, ch);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2776 comma_type = Qcomma;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2777 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2778 return list2 (comma_type, read0 (readcharfun));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2779 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2780 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2781 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2782 /* YUCK. 99.999% backwards compatibility. The Right
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2783 Thing(tm) is to signal an error here, because it's
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2784 really invalid read syntax. Instead, this permits
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2785 commas to begin symbols (unless they're inside
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2786 backquotes). If an error is signalled here in the
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2787 future, then commas should be invalid read syntax
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2788 outside of backquotes anywhere they're found (i.e.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2789 they must be quoted in symbols) -- Stig */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2790 return read_atom (readcharfun, c, 0);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2791 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2792 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2793 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2794
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2795 case '?':
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2796 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2797 /* Evil GNU Emacs "character" (ie integer) syntax */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2798 c = readchar (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2799 if (c < 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2800 return Fsignal (Qend_of_file, list1 (READCHARFUN_MAYBE (readcharfun)));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2801
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2802 if (c == '\\')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2803 c = read_escape (readcharfun);
4439
f4eb31866c38 Fix reader crash.
Mike Sperber <sperber@deinprogramm.de>
parents: 4329
diff changeset
2804 if (c < 0)
f4eb31866c38 Fix reader crash.
Mike Sperber <sperber@deinprogramm.de>
parents: 4329
diff changeset
2805 return Fsignal (Qinvalid_read_syntax, list1 (READCHARFUN_MAYBE (readcharfun)));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2806 return make_char (c);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2807 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2808
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2809 case '\"':
3543
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2810 /* String */
c136144fe765 [xemacs-hg @ 2006-08-04 22:55:04 by aidan]
aidan
parents: 3439
diff changeset
2811 return read_string(readcharfun, '\"', 0, 1);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2812
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2813 default:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2814 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2815 /* Ignore whitespace and control characters */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2816 if (c <= 040)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2817 goto retry;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2818 return read_atom (readcharfun, c, 0);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2819 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2820 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2821 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2822
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2823
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2824
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2825 #define LEAD_INT 1
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2826 #define DOT_CHAR 2
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2827 #define TRAIL_INT 4
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2828 #define E_CHAR 8
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2829 #define EXP_INT 16
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2830
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2831 int
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 440
diff changeset
2832 isfloat_string (const char *cp)
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2833 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2834 int state = 0;
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
2835 const Ibyte *ucp = (const Ibyte *) cp;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2836
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2837 if (*ucp == '+' || *ucp == '-')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2838 ucp++;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2839
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2840 if (*ucp >= '0' && *ucp <= '9')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2841 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2842 state |= LEAD_INT;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2843 while (*ucp >= '0' && *ucp <= '9')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2844 ucp++;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2845 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2846 if (*ucp == '.')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2847 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2848 state |= DOT_CHAR;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2849 ucp++;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2850 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2851 if (*ucp >= '0' && *ucp <= '9')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2852 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2853 state |= TRAIL_INT;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2854 while (*ucp >= '0' && *ucp <= '9')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2855 ucp++;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2856 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2857 if (*ucp == 'e' || *ucp == 'E')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2858 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2859 state |= E_CHAR;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2860 ucp++;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2861 if ((*ucp == '+') || (*ucp == '-'))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2862 ucp++;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2863 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2864
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2865 if (*ucp >= '0' && *ucp <= '9')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2866 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2867 state |= EXP_INT;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2868 while (*ucp >= '0' && *ucp <= '9')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2869 ucp++;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2870 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2871 return (((*ucp == 0) || (*ucp == ' ') || (*ucp == '\t') || (*ucp == '\n')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2872 || (*ucp == '\r') || (*ucp == '\f'))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2873 && (state == (LEAD_INT|DOT_CHAR|TRAIL_INT)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2874 || state == (DOT_CHAR|TRAIL_INT)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2875 || state == (LEAD_INT|E_CHAR|EXP_INT)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2876 || state == (LEAD_INT|DOT_CHAR|TRAIL_INT|E_CHAR|EXP_INT)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2877 || state == (DOT_CHAR|TRAIL_INT|E_CHAR|EXP_INT)));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2878 }
1983
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2879
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2880 #ifdef HAVE_RATIO
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2881 int
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2882 isratio_string (const char *cp)
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2883 {
2010
a9cdbfb4716e [xemacs-hg @ 2004-04-13 15:38:30 by james]
james
parents: 1995
diff changeset
2884 /* Possible minus/plus sign */
a9cdbfb4716e [xemacs-hg @ 2004-04-13 15:38:30 by james]
james
parents: 1995
diff changeset
2885 if (*cp == '-' || *cp == '+')
1983
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2886 cp++;
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2887
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2888 /* Numerator */
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2889 if (*cp < '0' || *cp > '9')
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2890 return 0;
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2891
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2892 do {
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2893 cp++;
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2894 } while (*cp >= '0' && *cp <= '9');
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2895
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2896 /* Slash */
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2897 if (*cp++ != '/')
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2898 return 0;
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2899
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2900 /* Denominator */
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2901 if (*cp < '0' || *cp > '9')
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2902 return 0;
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2903
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2904 do {
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2905 cp++;
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2906 } while (*cp >= '0' && *cp <= '9');
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2907
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2908 return *cp == '\0' || *cp == ' ' || *cp =='\t' || *cp == '\n' ||
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2909 *cp == '\r' || *cp == '\f';
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2910 }
9c872f33ecbe [xemacs-hg @ 2004-04-05 22:49:31 by james]
james
parents: 1849
diff changeset
2911 #endif
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2912
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2913 static void *
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2914 sequence_reader (Lisp_Object readcharfun,
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
2915 Ichar terminator,
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2916 void *state,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2917 void * (*conser) (Lisp_Object readcharfun,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2918 void *state, Charcount len))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2919 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2920 Charcount len;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2921
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2922 for (len = 0; ; len++)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2923 {
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
2924 Ichar ch;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2925
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2926 QUIT;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2927 ch = reader_nextchar (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2928
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2929 if (ch == terminator)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2930 return state;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2931 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2932 unreadchar (readcharfun, ch);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2933 #ifdef FEATUREP_SYNTAX
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2934 if (ch == ']')
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 440
diff changeset
2935 read_syntax_error ("\"]\" in a list");
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2936 else if (ch == ')')
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 440
diff changeset
2937 read_syntax_error ("\")\" in a vector");
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2938 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2939 state = ((conser) (readcharfun, state, len));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2940 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2941 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2942
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2943
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2944 struct read_list_state
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2945 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2946 Lisp_Object head;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2947 Lisp_Object tail;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2948 int length;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2949 int allow_dotted_lists;
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
2950 Ichar terminator;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2951 };
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2952
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2953 static void *
2286
04bc9d2f42c7 [xemacs-hg @ 2004-09-20 19:18:55 by james]
james
parents: 2268
diff changeset
2954 read_list_conser (Lisp_Object readcharfun, void *state, Charcount UNUSED (len))
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2955 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2956 struct read_list_state *s = (struct read_list_state *) state;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2957 Lisp_Object elt;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2958
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2959 elt = read1 (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2960
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2961 if (CONSP (elt) && UNBOUNDP (XCAR (elt)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2962 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2963 Lisp_Object tem = elt;
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
2964 Ichar ch;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2965
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2966 elt = XCDR (elt);
853
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 851
diff changeset
2967 free_cons (tem);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2968 tem = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2969 ch = XCHAR (elt);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2970 #ifdef FEATUREP_SYNTAX
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2971 if (ch == s->terminator) /* deal with #+, #- reader macros */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2972 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2973 unreadchar (readcharfun, s->terminator);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2974 goto done;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2975 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2976 else if (ch == ']')
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 440
diff changeset
2977 read_syntax_error ("']' in a list");
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2978 else if (ch == ')')
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 440
diff changeset
2979 read_syntax_error ("')' in a vector");
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2980 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2981 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2982 if (ch != '.')
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
2983 signal_error (Qinternal_error, "BUG! Internal reader error", elt);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2984 else if (!s->allow_dotted_lists)
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 440
diff changeset
2985 read_syntax_error ("\".\" in a vector");
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2986 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2987 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2988 if (!NILP (s->tail))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2989 XCDR (s->tail) = read0 (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2990 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2991 s->head = read0 (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2992 elt = read1 (readcharfun);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2993 if (CONSP (elt) && UNBOUNDP (XCAR (elt)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2994 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2995 ch = XCHAR (XCDR (elt));
853
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 851
diff changeset
2996 free_cons (elt);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2997 if (ch == s->terminator)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2998 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2999 unreadchar (readcharfun, s->terminator);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3000 goto done;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3001 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3002 }
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 440
diff changeset
3003 read_syntax_error (". in wrong context");
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3004 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3005 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3006
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3007 elt = Fcons (elt, Qnil);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3008 if (!NILP (s->tail))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3009 XCDR (s->tail) = elt;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3010 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3011 s->head = elt;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3012 s->tail = elt;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3013 done:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3014 s->length++;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3015 return s;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3016 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3017
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3018
814
a634e3b7acc8 [xemacs-hg @ 2002-04-14 12:41:59 by ben]
ben
parents: 800
diff changeset
3019 /* allow_dotted_lists means that something like (foo bar . baz)
a634e3b7acc8 [xemacs-hg @ 2002-04-14 12:41:59 by ben]
ben
parents: 800
diff changeset
3020 is acceptable. If -1, means check for starting with defun
a634e3b7acc8 [xemacs-hg @ 2002-04-14 12:41:59 by ben]
ben
parents: 800
diff changeset
3021 and make structure pure. (not implemented, probably for very
a634e3b7acc8 [xemacs-hg @ 2002-04-14 12:41:59 by ben]
ben
parents: 800
diff changeset
3022 good reasons)
a634e3b7acc8 [xemacs-hg @ 2002-04-14 12:41:59 by ben]
ben
parents: 800
diff changeset
3023
a634e3b7acc8 [xemacs-hg @ 2002-04-14 12:41:59 by ben]
ben
parents: 800
diff changeset
3024 If check_for_doc_references, look for (#$ . INT) doc references
a634e3b7acc8 [xemacs-hg @ 2002-04-14 12:41:59 by ben]
ben
parents: 800
diff changeset
3025 in the list and record if load_force_doc_strings is non-zero.
a634e3b7acc8 [xemacs-hg @ 2002-04-14 12:41:59 by ben]
ben
parents: 800
diff changeset
3026 (Such doc references will be destroyed during the loadup phase
a634e3b7acc8 [xemacs-hg @ 2002-04-14 12:41:59 by ben]
ben
parents: 800
diff changeset
3027 by replacing with Qzero, because Snarf-documentation will fill
a634e3b7acc8 [xemacs-hg @ 2002-04-14 12:41:59 by ben]
ben
parents: 800
diff changeset
3028 them in again.)
a634e3b7acc8 [xemacs-hg @ 2002-04-14 12:41:59 by ben]
ben
parents: 800
diff changeset
3029
a634e3b7acc8 [xemacs-hg @ 2002-04-14 12:41:59 by ben]
ben
parents: 800
diff changeset
3030 WARNING: If you set this, you sure as hell better not call
a634e3b7acc8 [xemacs-hg @ 2002-04-14 12:41:59 by ben]
ben
parents: 800
diff changeset
3031 free_list() on the returned list here.
a634e3b7acc8 [xemacs-hg @ 2002-04-14 12:41:59 by ben]
ben
parents: 800
diff changeset
3032 */
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3033
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3034 static Lisp_Object
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3035 read_list (Lisp_Object readcharfun,
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
3036 Ichar terminator,
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3037 int allow_dotted_lists,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3038 int check_for_doc_references)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3039 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3040 struct read_list_state s;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3041 struct gcpro gcpro1, gcpro2;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3042
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3043 s.head = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3044 s.tail = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3045 s.length = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3046 s.allow_dotted_lists = allow_dotted_lists;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3047 s.terminator = terminator;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3048 GCPRO2 (s.head, s.tail);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3049
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3050 sequence_reader (readcharfun, terminator, &s, read_list_conser);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3051
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3052 if ((purify_flag || load_force_doc_strings) && check_for_doc_references)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3053 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3054 /* check now for any doc string references and record them
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3055 for later. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3056 Lisp_Object tail;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3057
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3058 /* We might be dealing with an imperfect list so don't
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3059 use LIST_LOOP */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3060 for (tail = s.head; CONSP (tail); tail = XCDR (tail))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3061 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3062 Lisp_Object holding_cons = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3063
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3064 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3065 Lisp_Object elem = XCAR (tail);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3066 /* elem might be (#$ . INT) ... */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3067 if (CONSP (elem) && EQ (XCAR (elem), Vload_file_name_internal))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3068 holding_cons = tail;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3069 /* or it might be (quote (#$ . INT)) i.e.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3070 (quote . ((#$ . INT) . nil)) in the case of
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3071 `autoload' (autoload evaluates its arguments, while
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3072 `defvar', `defun', etc. don't). */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3073 if (CONSP (elem) && EQ (XCAR (elem), Qquote)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3074 && CONSP (XCDR (elem)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3075 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3076 elem = XCAR (XCDR (elem));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3077 if (CONSP (elem) && EQ (XCAR (elem), Vload_file_name_internal))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3078 holding_cons = XCDR (XCAR (tail));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3079 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3080 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3081
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3082 if (CONSP (holding_cons))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3083 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3084 if (purify_flag)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3085 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3086 if (NILP (Vinternal_doc_file_name))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3087 /* We have not yet called Snarf-documentation, so
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3088 assume this file is described in the DOC file
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3089 and Snarf-documentation will fill in the right
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3090 value later. For now, replace the whole list
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3091 with 0. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3092 XCAR (holding_cons) = Qzero;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3093 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3094 /* We have already called Snarf-documentation, so
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3095 make a relative file name for this file, so it
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3096 can be found properly in the installed Lisp
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3097 directory. We don't use Fexpand_file_name
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3098 because that would make the directory absolute
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3099 now. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3100 XCAR (XCAR (holding_cons)) =
4952
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
3101 concat2 (build_ascstring ("../lisp/"),
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3102 Ffile_name_nondirectory
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3103 (Vload_file_name_internal));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3104 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3105 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3106 /* Not pure. Just add to Vload_force_doc_string_list,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3107 and the string will be filled in properly in
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3108 load_force_doc_string_unwind(). */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3109 Vload_force_doc_string_list =
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3110 /* We pass the cons that holds the (#$ . INT) so we
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3111 can modify it in-place. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3112 Fcons (holding_cons, Vload_force_doc_string_list);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3113 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3114 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3115 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3116
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3117 UNGCPRO;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3118 return s.head;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3119 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3120
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3121 static Lisp_Object
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3122 read_vector (Lisp_Object readcharfun,
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
3123 Ichar terminator)
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3124 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3125 Lisp_Object tem;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3126 Lisp_Object *p;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3127 int len;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3128 int i;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3129 struct read_list_state s;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3130 struct gcpro gcpro1, gcpro2;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3131
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3132 s.head = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3133 s.tail = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3134 s.length = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3135 s.allow_dotted_lists = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3136 GCPRO2 (s.head, s.tail);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3137
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3138 sequence_reader (readcharfun, terminator, &s, read_list_conser);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3139
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3140 UNGCPRO;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3141 tem = s.head;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3142 len = XINT (Flength (tem));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3143
814
a634e3b7acc8 [xemacs-hg @ 2002-04-14 12:41:59 by ben]
ben
parents: 800
diff changeset
3144 s.head = make_vector (len, Qnil);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3145
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3146 for (i = 0, p = &(XVECTOR_DATA (s.head)[0]);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3147 i < len;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3148 i++, p++)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3149 {
853
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 851
diff changeset
3150 Lisp_Object otem = tem;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3151 tem = Fcar (tem);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3152 *p = tem;
853
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 851
diff changeset
3153 tem = XCDR (otem);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3154 free_cons (otem);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3155 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3156 return s.head;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3157 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3158
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3159 static Lisp_Object
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 853
diff changeset
3160 read_compiled_function (Lisp_Object readcharfun, Ichar terminator)
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3161 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3162 /* Accept compiled functions at read-time so that we don't
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3163 have to build them at load-time. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3164 Lisp_Object stuff;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3165 Lisp_Object make_byte_code_args[COMPILED_DOMAIN + 1];
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3166 struct gcpro gcpro1;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3167 int len;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3168 int iii;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3169 int saw_a_doc_ref = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3170
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3171 /* Note: we tell read_list not to search for doc references
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3172 because we need to handle the "doc reference" for the
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3173 instructions and constants differently. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3174 stuff = read_list (readcharfun, terminator, 0, 0);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3175 len = XINT (Flength (stuff));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3176 if (len < COMPILED_STACK_DEPTH + 1 || len > COMPILED_DOMAIN + 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3177 return
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 440
diff changeset
3178 continuable_read_syntax_error ("#[...] used with wrong number of elements");
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3179
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3180 for (iii = 0; CONSP (stuff); iii++)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3181 {
853
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 851
diff changeset
3182 Lisp_Object victim = stuff;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3183 make_byte_code_args[iii] = Fcar (stuff);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3184 if ((purify_flag || load_force_doc_strings)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3185 && CONSP (make_byte_code_args[iii])
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3186 && EQ (XCAR (make_byte_code_args[iii]), Vload_file_name_internal))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3187 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3188 if (purify_flag && iii == COMPILED_DOC_STRING)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3189 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3190 /* same as in read_list(). */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3191 if (NILP (Vinternal_doc_file_name))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3192 make_byte_code_args[iii] = Qzero;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3193 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3194 XCAR (make_byte_code_args[iii]) =
4952
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
3195 concat2 (build_ascstring ("../lisp/"),
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3196 Ffile_name_nondirectory
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3197 (Vload_file_name_internal));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3198 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3199 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3200 saw_a_doc_ref = 1;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3201 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3202 stuff = Fcdr (stuff);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3203 free_cons (victim);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3204 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3205 GCPRO1 (make_byte_code_args[0]);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3206 gcpro1.nvars = len;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3207
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3208 /* v18 or v19 bytecode file. Need to Ebolify. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3209 if (load_byte_code_version < 20 && VECTORP (make_byte_code_args[2]))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3210 ebolify_bytecode_constants (make_byte_code_args[2]);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3211
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3212 /* make-byte-code looks at purify_flag, which should have the same
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3213 * value as our "read-pure" argument */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3214 stuff = Fmake_byte_code (len, make_byte_code_args);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3215 XCOMPILED_FUNCTION (stuff)->flags.ebolified = (load_byte_code_version < 20);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3216 if (saw_a_doc_ref)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3217 Vload_force_doc_string_list = Fcons (stuff, Vload_force_doc_string_list);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3218 UNGCPRO;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3219 return stuff;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3220 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3221
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3222
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3223
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3224 void
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3225 init_lread (void)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3226 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3227 Vvalues = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3228
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3229 load_in_progress = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3230
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3231 Vload_descriptor_list = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3232
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3233 /* kludge: locate-file does not work for a null load-path, even if
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3234 the file name is absolute. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3235
4952
19a72041c5ed Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents: 4844
diff changeset
3236 Vload_path = Fcons (build_ascstring (""), Qnil);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3237
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3238 /* This used to get initialized in init_lread because all streams
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3239 got closed when dumping occurs. This is no longer true --
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3240 Vread_buffer_stream is a resizing output stream, and there is no
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3241 reason to close it at dump-time.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3242
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3243 Vread_buffer_stream is set to Qnil in vars_of_lread, and this
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3244 will initialize it only once, at dump-time. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3245 if (NILP (Vread_buffer_stream))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3246 Vread_buffer_stream = make_resizing_buffer_output_stream ();
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3247
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3248 Vload_force_doc_string_list = Qnil;
4608
1e3cf11fa27d Make #$ truly read-only for Lisp; check this in the test suite.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4483
diff changeset
3249
1e3cf11fa27d Make #$ truly read-only for Lisp; check this in the test suite.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4483
diff changeset
3250 Vload_file_name_internal = Qnil;
1e3cf11fa27d Make #$ truly read-only for Lisp; check this in the test suite.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4483
diff changeset
3251 Vload_file_name = Qnil;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3252 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3253
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3254 void
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3255 syms_of_lread (void)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3256 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3257 DEFSUBR (Fread);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3258 DEFSUBR (Fread_from_string);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3259 DEFSUBR (Fload_internal);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3260 DEFSUBR (Flocate_file);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3261 DEFSUBR (Flocate_file_clear_hashing);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3262 DEFSUBR (Feval_buffer);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3263 DEFSUBR (Feval_region);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3264
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
3265 DEFSYMBOL (Qstandard_input);
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
3266 DEFSYMBOL (Qread_char);
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
3267 DEFSYMBOL (Qload);
1292
f3437b56874d [xemacs-hg @ 2003-02-13 09:57:04 by ben]
ben
parents: 1275
diff changeset
3268 DEFSYMBOL (Qload_internal);
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
3269 DEFSYMBOL (Qfset);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3270
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3271 #ifdef LISP_BACKQUOTES
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
3272 DEFSYMBOL (Qbackquote);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3273 defsymbol (&Qbacktick, "`");
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3274 defsymbol (&Qcomma, ",");
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3275 defsymbol (&Qcomma_at, ",@");
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3276 defsymbol (&Qcomma_dot, ",.");
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3277 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3278
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
3279 DEFSYMBOL (Qexists);
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
3280 DEFSYMBOL (Qreadable);
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
3281 DEFSYMBOL (Qwritable);
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
3282 DEFSYMBOL (Qexecutable);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3283 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3284
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3285 void
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3286 structure_type_create (void)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3287 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3288 the_structure_type_dynarr = Dynarr_new (structure_type);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3289 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3290
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3291 void
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3292 reinit_vars_of_lread (void)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3293 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3294 Vread_buffer_stream = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3295 staticpro_nodump (&Vread_buffer_stream);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3296 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3297
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3298 void
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3299 vars_of_lread (void)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3300 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3301 DEFVAR_LISP ("values", &Vvalues /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3302 List of values of all expressions which were read, evaluated and printed.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3303 Order is reverse chronological.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3304 */ );
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3305
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3306 DEFVAR_LISP ("standard-input", &Vstandard_input /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3307 Stream for read to get input from.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3308 See documentation of `read' for possible values.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3309 */ );
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3310 Vstandard_input = Qt;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3311
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3312 DEFVAR_LISP ("load-path", &Vload_path /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3313 *List of directories to search for files to load.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3314 Each element is a string (directory name) or nil (try default directory).
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3315
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3316 Note that the elements of this list *may not* begin with "~", so you must
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3317 call `expand-file-name' on them before adding them to this list.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3318
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3319 Initialized based on EMACSLOADPATH environment variable, if any,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3320 otherwise to default specified in by file `paths.h' when XEmacs was built.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3321 If there were no paths specified in `paths.h', then XEmacs chooses a default
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3322 value for this variable by looking around in the file-system near the
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3323 directory in which the XEmacs executable resides.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3324 */ );
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3325 Vload_path = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3326
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3327 /* xxxDEFVAR_LISP ("dump-load-path", &Vdump_load_path,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3328 "*Location of lisp files to be used when dumping ONLY."); */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3329
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3330 DEFVAR_BOOL ("load-in-progress", &load_in_progress /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3331 Non-nil iff inside of `load'.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3332 */ );
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3333
2548
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
3334 DEFVAR_LISP ("load-suppress-alist", &Vload_suppress_alist /*
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
3335 An alist of expressions controlling whether particular files can be loaded.
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
3336 Each element looks like (FILENAME EXPR).
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
3337 FILENAME should be a full pathname, but without the .el suffix.
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
3338 When `load' is run and is about to load the specified file, it evaluates
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
3339 the form to determine if the file can be loaded.
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
3340 This variable is normally initialized automatically.
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
3341 */ );
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
3342 Vload_suppress_alist = Qnil;
c4c8a36043be [xemacs-hg @ 2005-02-03 07:11:19 by ben]
ben
parents: 2500
diff changeset
3343
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3344 DEFVAR_LISP ("after-load-alist", &Vafter_load_alist /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3345 An alist of expressions to be evalled when particular files are loaded.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3346 Each element looks like (FILENAME FORMS...).
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3347 When `load' is run and the file-name argument is FILENAME,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3348 the FORMS in the corresponding element are executed at the end of loading.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3349
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3350 FILENAME must match exactly! Normally FILENAME is the name of a library,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3351 with no directory specified, since that is how `load' is normally called.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3352 An error in FORMS does not undo the load,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3353 but does prevent execution of the rest of the FORMS.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3354 */ );
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3355 Vafter_load_alist = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3356
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3357 DEFVAR_BOOL ("load-warn-when-source-newer", &load_warn_when_source_newer /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3358 *Whether `load' should check whether the source is newer than the binary.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3359 If this variable is true, then when a `.elc' file is being loaded and the
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3360 corresponding `.el' is newer, a warning message will be printed.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3361 */ );
1261
465bd3c7d932 [xemacs-hg @ 2003-02-06 06:35:47 by ben]
ben
parents: 1123
diff changeset
3362 load_warn_when_source_newer = 1;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3363
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3364 DEFVAR_BOOL ("load-warn-when-source-only", &load_warn_when_source_only /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3365 *Whether `load' should warn when loading a `.el' file instead of an `.elc'.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3366 If this variable is true, then when `load' is called with a filename without
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3367 an extension, and the `.elc' version doesn't exist but the `.el' version does,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3368 then a message will be printed. If an explicit extension is passed to `load',
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3369 no warning will be printed.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3370 */ );
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3371 load_warn_when_source_only = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3372
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3373 DEFVAR_BOOL ("load-ignore-elc-files", &load_ignore_elc_files /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3374 *Whether `load' should ignore `.elc' files when a suffix is not given.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3375 This is normally used only to bootstrap the `.elc' files when building XEmacs.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3376 */ );
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3377 load_ignore_elc_files = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3378
1123
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
3379 DEFVAR_BOOL ("load-ignore-out-of-date-elc-files",
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
3380 &load_ignore_out_of_date_elc_files /*
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
3381 *Whether `load' should ignore out-of-date `.elc' files when no suffix is given.
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
3382 This is normally used when compiling packages of elisp files that may have
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
3383 complex dependencies. Ignoring all elc files with `load-ignore-elc-files'
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
3384 would also be safe, but much slower.
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
3385 */ );
4955
de64354ffcbf turn on load-ignore-out-of-date-elc-files by default
Ben Wing <ben@xemacs.org>
parents: 4953
diff changeset
3386 load_ignore_out_of_date_elc_files = 1;
1123
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
3387
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
3388 DEFVAR_BOOL ("load-always-display-messages",
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
3389 &load_always_display_messages /*
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
3390 *Whether `load' should always display loading messages.
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
3391 If this is true, every file loaded will be shown, regardless of the setting
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
3392 of the NOMESSAGE parameter, and even when files are loaded indirectly, e.g.
2857
21e33c0c844b [xemacs-hg @ 2005-07-12 23:26:49 by adrian]
adrian
parents: 2567
diff changeset
3393 due to `require'.
1123
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
3394 */ );
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
3395 load_always_display_messages = 0;
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
3396
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
3397 DEFVAR_BOOL ("load-show-full-path-in-messages",
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
3398 &load_show_full_path_in_messages /*
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
3399 *Whether `load' should show the full path in all loading messages.
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
3400 */ );
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
3401 load_show_full_path_in_messages = 0;
37bdd24225ef [xemacs-hg @ 2002-11-27 07:15:02 by ben]
ben
parents: 1104
diff changeset
3402
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3403 #ifdef LOADHIST
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3404 DEFVAR_LISP ("load-history", &Vload_history /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3405 Alist mapping source file names to symbols and features.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3406 Each alist element is a list that starts with a file name,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3407 except for one element (optional) that starts with nil and describes
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3408 definitions evaluated from buffers not visiting files.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3409 The remaining elements of each list are symbols defined as functions
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3410 or variables, and cons cells `(provide . FEATURE)' and `(require . FEATURE)'.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3411 */ );
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3412 Vload_history = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3413
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3414 DEFVAR_LISP ("current-load-list", &Vcurrent_load_list /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3415 Used for internal purposes by `load'.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3416 */ );
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3417 Vcurrent_load_list = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3418 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3419
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3420 DEFVAR_LISP ("load-file-name", &Vload_file_name /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3421 Full name of file being loaded by `load'.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3422 */ );
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3423 Vload_file_name = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3424
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3425 DEFVAR_LISP ("load-read-function", &Vload_read_function /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3426 Function used by `load' and `eval-region' for reading expressions.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3427 The default is nil, which means use the function `read'.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3428 */ );
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3429 Vload_read_function = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3430
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3431 DEFVAR_BOOL ("load-force-doc-strings", &load_force_doc_strings /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3432 Non-nil means `load' should force-load all dynamic doc strings.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3433 This is useful when the file being loaded is a temporary copy.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3434 */ );
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3435 load_force_doc_strings = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3436
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3437 /* See read_escape(). */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3438 #if 0
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3439 /* Used to be named `puke-on-fsf-keys' */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3440 DEFVAR_BOOL ("fail-on-bucky-bit-character-escapes",
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3441 &fail_on_bucky_bit_character_escapes /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3442 Whether `read' should signal an error when it encounters unsupported
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3443 character escape syntaxes or just read them incorrectly.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3444 */ );
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3445 fail_on_bucky_bit_character_escapes = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3446 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3447
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3448 /* This must be initialized in init_lread otherwise it may start out
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3449 with values saved when the image is dumped. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3450 staticpro (&Vload_descriptor_list);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3451
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3452 /* Initialized in init_lread. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3453 staticpro (&Vload_force_doc_string_list);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3454
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3455 Vload_file_name_internal = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3456 staticpro (&Vload_file_name_internal);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3457
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3458 /* So that early-early stuff will work */
1292
f3437b56874d [xemacs-hg @ 2003-02-13 09:57:04 by ben]
ben
parents: 1275
diff changeset
3459 Ffset (Qload, Qload_internal);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3460
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3461 #ifdef FEATUREP_SYNTAX
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 558
diff changeset
3462 DEFSYMBOL (Qfeaturep);
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
3463 Fprovide (intern ("xemacs"));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3464 #ifdef INFODOCK
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 665
diff changeset
3465 Fprovide (intern ("infodock"));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3466 #endif /* INFODOCK */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3467 #endif /* FEATUREP_SYNTAX */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3468
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3469 #ifdef LISP_BACKQUOTES
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3470 old_backquote_flag = new_backquote_flag = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3471 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3472
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3473 #ifdef I18N3
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3474 Vfile_domain = Qnil;
5139
a48ef26d87ee Clean up prototypes for Lisp variables/symbols. Put decls for them with
Ben Wing <ben@xemacs.org>
parents: 5088
diff changeset
3475 staticpro (&Vfile_domain);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3476 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3477
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3478 Vread_objects = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3479 staticpro (&Vread_objects);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3480
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3481 Vlocate_file_hash_table = make_lisp_hash_table (200,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3482 HASH_TABLE_NON_WEAK,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3483 HASH_TABLE_EQUAL);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3484 staticpro (&Vlocate_file_hash_table);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3485 #ifdef DEBUG_XEMACS
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3486 symbol_value (XSYMBOL (intern ("Vlocate-file-hash-table")))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3487 = Vlocate_file_hash_table;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3488 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3489 }