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428
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1 /* Specifier implementation
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2 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois.
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3 Copyright (C) 1995, 1996 Ben Wing.
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4 Copyright (C) 1995 Sun Microsystems, Inc.
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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: Not in FSF. */
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24
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25 /* Design by Ben Wing;
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26 Original version by Chuck Thompson;
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27 rewritten by Ben Wing;
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28 Magic specifiers by Kirill Katsnelson;
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29 */
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30
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31 #include <config.h>
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32 #include "lisp.h"
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33
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34 #include "buffer.h"
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35 #include "device.h"
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36 #include "frame.h"
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37 #include "opaque.h"
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38 #include "specifier.h"
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39 #include "window.h"
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40 #include "chartab.h"
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41 #include "rangetab.h"
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42
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43 Lisp_Object Qspecifierp;
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442
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44 Lisp_Object Qremove_tag_set_prepend, Qremove_tag_set_append;
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45 Lisp_Object Qremove_locale, Qremove_locale_type;
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428
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46
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47 Lisp_Object Qconsole_type, Qdevice_class;
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48
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442
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49 Lisp_Object Qspecifier_syntax_error;
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50 Lisp_Object Qspecifier_argument_error;
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51 Lisp_Object Qspecifier_change_error;
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52
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428
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53 static Lisp_Object Vuser_defined_tags;
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54
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55 typedef struct specifier_type_entry specifier_type_entry;
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56 struct specifier_type_entry
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57 {
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58 Lisp_Object symbol;
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59 struct specifier_methods *meths;
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60 };
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61
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62 typedef struct
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63 {
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64 Dynarr_declare (specifier_type_entry);
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65 } specifier_type_entry_dynarr;
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66
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67 static specifier_type_entry_dynarr *the_specifier_type_entry_dynarr;
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68
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69 static const struct lrecord_description ste_description_1[] = {
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440
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70 { XD_LISP_OBJECT, offsetof (specifier_type_entry, symbol) },
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442
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71 { XD_STRUCT_PTR, offsetof (specifier_type_entry, meths), 1,
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72 &specifier_methods_description },
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428
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73 { XD_END }
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74 };
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75
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76 static const struct struct_description ste_description = {
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440
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77 sizeof (specifier_type_entry),
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428
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78 ste_description_1
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79 };
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80
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81 static const struct lrecord_description sted_description_1[] = {
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440
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82 XD_DYNARR_DESC (specifier_type_entry_dynarr, &ste_description),
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428
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83 { XD_END }
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84 };
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85
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86 static const struct struct_description sted_description = {
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440
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87 sizeof (specifier_type_entry_dynarr),
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428
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88 sted_description_1
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89 };
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90
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91 static Lisp_Object Vspecifier_type_list;
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92
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93 static Lisp_Object Vcached_specifiers;
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94 /* Do NOT mark through this, or specifiers will never be GC'd. */
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95 static Lisp_Object Vall_specifiers;
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96
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97 static Lisp_Object Vunlock_ghost_specifiers;
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98
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99 /* #### The purpose of this is to check for inheritance loops
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100 in specifiers that can inherit from other specifiers, but it's
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101 not yet implemented.
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102
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103 #### Look into this for 19.14. */
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104 /* static Lisp_Object_dynarr current_specifiers; */
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105
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106 static void recompute_cached_specifier_everywhere (Lisp_Object specifier);
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107
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108 EXFUN (Fspecifier_specs, 4);
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109 EXFUN (Fremove_specifier, 4);
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110
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111
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112 /************************************************************************/
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113 /* Specifier object methods */
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114 /************************************************************************/
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115
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116 /* Remove dead objects from the specified assoc list. */
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117
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118 static Lisp_Object
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119 cleanup_assoc_list (Lisp_Object list)
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120 {
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121 Lisp_Object loop, prev, retval;
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122
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123 loop = retval = list;
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124 prev = Qnil;
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125
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126 while (!NILP (loop))
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127 {
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128 Lisp_Object entry = XCAR (loop);
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129 Lisp_Object key = XCAR (entry);
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130
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131 /* remember, dead windows can become alive again. */
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132 if (!WINDOWP (key) && object_dead_p (key))
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133 {
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134 if (NILP (prev))
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135 {
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136 /* Removing the head. */
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137 retval = XCDR (retval);
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138 }
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139 else
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140 {
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141 Fsetcdr (prev, XCDR (loop));
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142 }
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143 }
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144 else
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145 prev = loop;
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146
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147 loop = XCDR (loop);
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148 }
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149
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150 return retval;
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151 }
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152
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153 /* Remove dead objects from the various lists so that they
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154 don't keep getting marked as long as this specifier exists and
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155 therefore wasting memory. */
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156
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157 void
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158 cleanup_specifiers (void)
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159 {
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160 Lisp_Object rest;
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161
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162 for (rest = Vall_specifiers;
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163 !NILP (rest);
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164 rest = XSPECIFIER (rest)->next_specifier)
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165 {
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440
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166 Lisp_Specifier *sp = XSPECIFIER (rest);
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428
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167 /* This effectively changes the specifier specs.
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168 However, there's no need to call
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169 recompute_cached_specifier_everywhere() or the
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170 after-change methods because the only specs we
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171 are removing are for dead objects, and they can
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172 never have any effect on the specifier values:
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173 specifiers can only be instantiated over live
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174 objects, and you can't derive a dead object
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175 from a live one. */
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176 sp->device_specs = cleanup_assoc_list (sp->device_specs);
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177 sp->frame_specs = cleanup_assoc_list (sp->frame_specs);
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178 sp->buffer_specs = cleanup_assoc_list (sp->buffer_specs);
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179 /* windows are handled specially because dead windows
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180 can be resurrected */
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181 }
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182 }
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183
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184 void
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185 kill_specifier_buffer_locals (Lisp_Object buffer)
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186 {
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187 Lisp_Object rest;
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188
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189 for (rest = Vall_specifiers;
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190 !NILP (rest);
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191 rest = XSPECIFIER (rest)->next_specifier)
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192 {
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440
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193 Lisp_Specifier *sp = XSPECIFIER (rest);
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428
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194
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195 /* Make sure we're actually going to be changing something.
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196 Fremove_specifier() always calls
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197 recompute_cached_specifier_everywhere() (#### but should
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198 be smarter about this). */
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199 if (!NILP (assq_no_quit (buffer, sp->buffer_specs)))
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200 Fremove_specifier (rest, buffer, Qnil, Qnil);
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201 }
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202 }
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203
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204 static Lisp_Object
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205 mark_specifier (Lisp_Object obj)
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206 {
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440
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207 Lisp_Specifier *specifier = XSPECIFIER (obj);
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428
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208
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209 mark_object (specifier->global_specs);
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210 mark_object (specifier->device_specs);
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211 mark_object (specifier->frame_specs);
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212 mark_object (specifier->window_specs);
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213 mark_object (specifier->buffer_specs);
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214 mark_object (specifier->magic_parent);
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215 mark_object (specifier->fallback);
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216 if (!GHOST_SPECIFIER_P (XSPECIFIER (obj)))
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217 MAYBE_SPECMETH (specifier, mark, (obj));
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218 return Qnil;
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219 }
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220
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221 /* The idea here is that the specifier specs point to locales
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222 (windows, buffers, frames, and devices), and we want to make sure
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223 that the specs disappear automatically when the associated locale
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224 is no longer in use. For all but windows, "no longer in use"
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225 corresponds exactly to when the object is deleted (non-deleted
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226 objects are always held permanently in special lists, and deleted
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227 objects are never on these lists and never reusable). To handle
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228 this, we just have cleanup_specifiers() called periodically
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229 (at the beginning of garbage collection); it removes all dead
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230 objects.
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231
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232 For windows, however, it's trickier because dead objects can be
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233 converted to live ones again if the dead object is in a window
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234 configuration. Therefore, for windows, "no longer in use"
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235 corresponds to when the window object is garbage-collected.
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236 We now use weak lists for this purpose.
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237
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238 */
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239
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240 void
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241 prune_specifiers (void)
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242 {
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243 Lisp_Object rest, prev = Qnil;
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244
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245 for (rest = Vall_specifiers;
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246 !NILP (rest);
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247 rest = XSPECIFIER (rest)->next_specifier)
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248 {
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249 if (! marked_p (rest))
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250 {
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440
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251 Lisp_Specifier* sp = XSPECIFIER (rest);
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428
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252 /* A bit of assertion that we're removing both parts of the
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253 magic one altogether */
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254 assert (!MAGIC_SPECIFIER_P(sp)
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255 || (BODILY_SPECIFIER_P(sp) && marked_p (sp->fallback))
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256 || (GHOST_SPECIFIER_P(sp) && marked_p (sp->magic_parent)));
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257 /* This specifier is garbage. Remove it from the list. */
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258 if (NILP (prev))
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259 Vall_specifiers = sp->next_specifier;
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260 else
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261 XSPECIFIER (prev)->next_specifier = sp->next_specifier;
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262 }
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263 else
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264 prev = rest;
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265 }
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266 }
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267
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268 static void
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269 print_specifier (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
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270 {
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440
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271 Lisp_Specifier *sp = XSPECIFIER (obj);
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428
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272 char buf[100];
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273 int count = specpdl_depth ();
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274 Lisp_Object the_specs;
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275
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276 if (print_readably)
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277 error ("printing unreadable object #<%s-specifier 0x%x>",
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278 sp->methods->name, sp->header.uid);
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279
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280 sprintf (buf, "#<%s-specifier global=", sp->methods->name);
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281 write_c_string (buf, printcharfun);
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282 specbind (Qprint_string_length, make_int (100));
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283 specbind (Qprint_length, make_int (5));
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284 the_specs = Fspecifier_specs (obj, Qglobal, Qnil, Qnil);
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285 if (NILP (the_specs))
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286 /* there are no global specs */
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287 write_c_string ("<unspecified>", printcharfun);
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288 else
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289 print_internal (the_specs, printcharfun, 1);
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290 if (!NILP (sp->fallback))
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291 {
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292 write_c_string (" fallback=", printcharfun);
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293 print_internal (sp->fallback, printcharfun, escapeflag);
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294 }
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295 unbind_to (count, Qnil);
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296 sprintf (buf, " 0x%x>", sp->header.uid);
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297 write_c_string (buf, printcharfun);
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298 }
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299
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300 static void
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301 finalize_specifier (void *header, int for_disksave)
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302 {
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440
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303 Lisp_Specifier *sp = (Lisp_Specifier *) header;
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428
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304 /* don't be snafued by the disksave finalization. */
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305 if (!for_disksave && !GHOST_SPECIFIER_P(sp) && sp->caching)
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306 {
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307 xfree (sp->caching);
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308 sp->caching = 0;
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309 }
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310 }
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311
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312 static int
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313 specifier_equal (Lisp_Object obj1, Lisp_Object obj2, int depth)
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314 {
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440
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315 Lisp_Specifier *s1 = XSPECIFIER (obj1);
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316 Lisp_Specifier *s2 = XSPECIFIER (obj2);
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428
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317 int retval;
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318 Lisp_Object old_inhibit_quit = Vinhibit_quit;
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319
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320 /* This function can be called from within redisplay.
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321 internal_equal can trigger a quit. That leads to Bad Things. */
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322 Vinhibit_quit = Qt;
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323
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324 depth++;
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325 retval =
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326 (s1->methods == s2->methods &&
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327 internal_equal (s1->global_specs, s2->global_specs, depth) &&
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328 internal_equal (s1->device_specs, s2->device_specs, depth) &&
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329 internal_equal (s1->frame_specs, s2->frame_specs, depth) &&
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330 internal_equal (s1->window_specs, s2->window_specs, depth) &&
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331 internal_equal (s1->buffer_specs, s2->buffer_specs, depth) &&
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332 internal_equal (s1->fallback, s2->fallback, depth));
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333
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334 if (retval && HAS_SPECMETH_P (s1, equal))
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335 retval = SPECMETH (s1, equal, (obj1, obj2, depth - 1));
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336
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337 Vinhibit_quit = old_inhibit_quit;
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338 return retval;
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339 }
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340
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341 static unsigned long
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342 specifier_hash (Lisp_Object obj, int depth)
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343 {
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440
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344 Lisp_Specifier *s = XSPECIFIER (obj);
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428
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345
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346 /* specifier hashing is a bit problematic because there are so
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347 many places where data can be stored. We pick what are perhaps
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348 the most likely places where interesting stuff will be. */
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349 return HASH5 ((HAS_SPECMETH_P (s, hash) ?
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350 SPECMETH (s, hash, (obj, depth)) : 0),
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351 (unsigned long) s->methods,
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352 internal_hash (s->global_specs, depth + 1),
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353 internal_hash (s->frame_specs, depth + 1),
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354 internal_hash (s->buffer_specs, depth + 1));
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355 }
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356
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456
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357 inline static size_t
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358 aligned_sizeof_specifier (size_t specifier_type_specific_size)
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359 {
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360 return ALIGN_SIZE (offsetof (Lisp_Specifier, data)
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361 + specifier_type_specific_size,
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362 ALIGNOF (max_align_t));
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363 }
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364
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428
|
365 static size_t
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442
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366 sizeof_specifier (const void *header)
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428
|
367 {
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|
456
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368 const Lisp_Specifier *p = (const Lisp_Specifier *) header;
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369 return aligned_sizeof_specifier (GHOST_SPECIFIER_P (p)
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370 ? 0
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|
371 : p->methods->extra_data_size);
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|
428
|
372 }
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373
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|
|
374 static const struct lrecord_description specifier_methods_description_1[] = {
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440
|
375 { XD_LISP_OBJECT, offsetof (struct specifier_methods, predicate_symbol) },
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428
|
376 { XD_END }
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|
|
377 };
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|
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378
|
|
|
379 const struct struct_description specifier_methods_description = {
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|
440
|
380 sizeof (struct specifier_methods),
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|
428
|
381 specifier_methods_description_1
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|
|
382 };
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|
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383
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|
|
384 static const struct lrecord_description specifier_caching_description_1[] = {
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|
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385 { XD_END }
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|
386 };
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387
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|
|
388 static const struct struct_description specifier_caching_description = {
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|
440
|
389 sizeof (struct specifier_caching),
|
|
428
|
390 specifier_caching_description_1
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|
|
391 };
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|
|
392
|
|
|
393 static const struct lrecord_description specifier_description[] = {
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|
442
|
394 { XD_STRUCT_PTR, offsetof (Lisp_Specifier, methods), 1,
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|
|
395 &specifier_methods_description },
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|
440
|
396 { XD_LO_LINK, offsetof (Lisp_Specifier, next_specifier) },
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|
|
397 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, global_specs) },
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|
|
398 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, device_specs) },
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|
|
399 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, frame_specs) },
|
|
|
400 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, window_specs) },
|
|
|
401 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, buffer_specs) },
|
|
442
|
402 { XD_STRUCT_PTR, offsetof (Lisp_Specifier, caching), 1,
|
|
|
403 &specifier_caching_description },
|
|
440
|
404 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, magic_parent) },
|
|
|
405 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, fallback) },
|
|
428
|
406 { XD_SPECIFIER_END }
|
|
|
407 };
|
|
|
408
|
|
|
409 const struct lrecord_description specifier_empty_extra_description[] = {
|
|
|
410 { XD_END }
|
|
|
411 };
|
|
|
412
|
|
|
413 DEFINE_LRECORD_SEQUENCE_IMPLEMENTATION ("specifier", specifier,
|
|
|
414 mark_specifier, print_specifier,
|
|
|
415 finalize_specifier,
|
|
|
416 specifier_equal, specifier_hash,
|
|
|
417 specifier_description,
|
|
|
418 sizeof_specifier,
|
|
440
|
419 Lisp_Specifier);
|
|
428
|
420
|
|
|
421 /************************************************************************/
|
|
|
422 /* Creating specifiers */
|
|
|
423 /************************************************************************/
|
|
|
424
|
|
|
425 static struct specifier_methods *
|
|
|
426 decode_specifier_type (Lisp_Object type, Error_behavior errb)
|
|
|
427 {
|
|
|
428 int i;
|
|
|
429
|
|
|
430 for (i = 0; i < Dynarr_length (the_specifier_type_entry_dynarr); i++)
|
|
|
431 {
|
|
|
432 if (EQ (type, Dynarr_at (the_specifier_type_entry_dynarr, i).symbol))
|
|
|
433 return Dynarr_at (the_specifier_type_entry_dynarr, i).meths;
|
|
|
434 }
|
|
|
435
|
|
442
|
436 maybe_signal_type_error (Qspecifier_argument_error, "Invalid specifier type",
|
|
|
437 type, Qspecifier, errb);
|
|
428
|
438
|
|
|
439 return 0;
|
|
|
440 }
|
|
|
441
|
|
|
442 static int
|
|
|
443 valid_specifier_type_p (Lisp_Object type)
|
|
|
444 {
|
|
|
445 return decode_specifier_type (type, ERROR_ME_NOT) != 0;
|
|
|
446 }
|
|
|
447
|
|
|
448 DEFUN ("valid-specifier-type-p", Fvalid_specifier_type_p, 1, 1, 0, /*
|
|
|
449 Given a SPECIFIER-TYPE, return non-nil if it is valid.
|
|
|
450 Valid types are 'generic, 'integer, boolean, 'color, 'font, 'image,
|
|
|
451 'face-boolean, and 'toolbar.
|
|
|
452 */
|
|
|
453 (specifier_type))
|
|
|
454 {
|
|
|
455 return valid_specifier_type_p (specifier_type) ? Qt : Qnil;
|
|
|
456 }
|
|
|
457
|
|
|
458 DEFUN ("specifier-type-list", Fspecifier_type_list, 0, 0, 0, /*
|
|
|
459 Return a list of valid specifier types.
|
|
|
460 */
|
|
|
461 ())
|
|
|
462 {
|
|
|
463 return Fcopy_sequence (Vspecifier_type_list);
|
|
|
464 }
|
|
|
465
|
|
|
466 void
|
|
|
467 add_entry_to_specifier_type_list (Lisp_Object symbol,
|
|
|
468 struct specifier_methods *meths)
|
|
|
469 {
|
|
|
470 struct specifier_type_entry entry;
|
|
|
471
|
|
|
472 entry.symbol = symbol;
|
|
|
473 entry.meths = meths;
|
|
|
474 Dynarr_add (the_specifier_type_entry_dynarr, entry);
|
|
|
475 Vspecifier_type_list = Fcons (symbol, Vspecifier_type_list);
|
|
|
476 }
|
|
|
477
|
|
|
478 static Lisp_Object
|
|
|
479 make_specifier_internal (struct specifier_methods *spec_meths,
|
|
|
480 size_t data_size, int call_create_meth)
|
|
|
481 {
|
|
|
482 Lisp_Object specifier;
|
|
440
|
483 Lisp_Specifier *sp = (Lisp_Specifier *)
|
|
456
|
484 alloc_lcrecord (aligned_sizeof_specifier (data_size), &lrecord_specifier);
|
|
428
|
485
|
|
|
486 sp->methods = spec_meths;
|
|
|
487 sp->global_specs = Qnil;
|
|
|
488 sp->device_specs = Qnil;
|
|
|
489 sp->frame_specs = Qnil;
|
|
|
490 sp->window_specs = make_weak_list (WEAK_LIST_KEY_ASSOC);
|
|
|
491 sp->buffer_specs = Qnil;
|
|
|
492 sp->fallback = Qnil;
|
|
|
493 sp->magic_parent = Qnil;
|
|
|
494 sp->caching = 0;
|
|
|
495 sp->next_specifier = Vall_specifiers;
|
|
|
496
|
|
|
497 XSETSPECIFIER (specifier, sp);
|
|
|
498 Vall_specifiers = specifier;
|
|
|
499
|
|
|
500 if (call_create_meth)
|
|
|
501 {
|
|
|
502 struct gcpro gcpro1;
|
|
|
503 GCPRO1 (specifier);
|
|
|
504 MAYBE_SPECMETH (XSPECIFIER (specifier), create, (specifier));
|
|
|
505 UNGCPRO;
|
|
|
506 }
|
|
|
507 return specifier;
|
|
|
508 }
|
|
|
509
|
|
|
510 static Lisp_Object
|
|
|
511 make_specifier (struct specifier_methods *meths)
|
|
|
512 {
|
|
|
513 return make_specifier_internal (meths, meths->extra_data_size, 1);
|
|
|
514 }
|
|
|
515
|
|
|
516 Lisp_Object
|
|
|
517 make_magic_specifier (Lisp_Object type)
|
|
|
518 {
|
|
|
519 /* This function can GC */
|
|
|
520 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
521 Lisp_Object bodily, ghost;
|
|
|
522 struct gcpro gcpro1;
|
|
|
523
|
|
|
524 bodily = make_specifier (meths);
|
|
|
525 GCPRO1 (bodily);
|
|
|
526 ghost = make_specifier_internal (meths, 0, 0);
|
|
|
527 UNGCPRO;
|
|
|
528
|
|
|
529 /* Connect guys together */
|
|
|
530 XSPECIFIER(bodily)->magic_parent = Qt;
|
|
|
531 XSPECIFIER(bodily)->fallback = ghost;
|
|
|
532 XSPECIFIER(ghost)->magic_parent = bodily;
|
|
|
533
|
|
|
534 return bodily;
|
|
|
535 }
|
|
|
536
|
|
|
537 DEFUN ("make-specifier", Fmake_specifier, 1, 1, 0, /*
|
|
|
538 Return a new specifier object of type TYPE.
|
|
|
539
|
|
|
540 A specifier is an object that can be used to keep track of a property
|
|
|
541 whose value can be per-buffer, per-window, per-frame, or per-device,
|
|
442
|
542 and can further be restricted to a particular console-type or
|
|
|
543 device-class. Specifiers are used, for example, for the various
|
|
|
544 built-in properties of a face; this allows a face to have different
|
|
|
545 values in different frames, buffers, etc.
|
|
|
546
|
|
|
547 When speaking of the value of a specifier, it is important to
|
|
|
548 distinguish between the *setting* of a specifier, called an
|
|
|
549 \"instantiator\", and the *actual value*, called an \"instance\". You
|
|
|
550 put various possible instantiators (i.e. settings) into a specifier
|
|
|
551 and associate them with particular locales (buffer, window, frame,
|
|
|
552 device, global), and then the instance (i.e. actual value) is
|
|
|
553 retrieved in a specific domain (window, frame, device) by looking
|
|
|
554 through the possible instantiators (i.e. settings). This process is
|
|
|
555 called \"instantiation\".
|
|
444
|
556
|
|
442
|
557 To put settings into a specifier, use `set-specifier', or the
|
|
|
558 lower-level functions `add-spec-to-specifier' and
|
|
|
559 `add-spec-list-to-specifier'. You can also temporarily bind a setting
|
|
|
560 to a specifier using `let-specifier'. To retrieve settings, use
|
|
|
561 `specifier-specs', or its lower-level counterpart
|
|
|
562 `specifier-spec-list'. To determine the actual value, use
|
|
|
563 `specifier-instance'.
|
|
|
564
|
|
|
565 For more information, see `set-specifier', `specifier-instance',
|
|
428
|
566 `specifier-specs', and `add-spec-to-specifier'; or, for a detailed
|
|
442
|
567 description of specifiers, including how exactly the instantiation
|
|
|
568 process works, see the chapter on specifiers in the XEmacs Lisp
|
|
|
569 Reference Manual.
|
|
428
|
570
|
|
|
571 TYPE specifies the particular type of specifier, and should be one of
|
|
442
|
572 the symbols 'generic, 'integer, 'natnum, 'boolean, 'color, 'font,
|
|
|
573 'image, 'face-boolean, 'display-table, 'gutter, 'gutter-size,
|
|
|
574 'gutter-visible or 'toolbar.
|
|
|
575
|
|
|
576 For more information on particular types of specifiers, see the
|
|
|
577 functions `make-generic-specifier', `make-integer-specifier',
|
|
|
578 `make-natnum-specifier', `make-boolean-specifier',
|
|
|
579 `make-color-specifier', `make-font-specifier', `make-image-specifier',
|
|
|
580 `make-face-boolean-specifier', `make-gutter-size-specifier',
|
|
|
581 `make-gutter-visible-specifier', `default-toolbar', `default-gutter',
|
|
|
582 and `current-display-table'.
|
|
428
|
583 */
|
|
|
584 (type))
|
|
|
585 {
|
|
|
586 /* This function can GC */
|
|
442
|
587 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
428
|
588
|
|
|
589 return make_specifier (meths);
|
|
|
590 }
|
|
|
591
|
|
|
592 DEFUN ("specifierp", Fspecifierp, 1, 1, 0, /*
|
|
|
593 Return t if OBJECT is a specifier.
|
|
|
594
|
|
|
595 A specifier is an object that can be used to keep track of a property
|
|
|
596 whose value can be per-buffer, per-window, per-frame, or per-device,
|
|
|
597 and can further be restricted to a particular console-type or device-class.
|
|
|
598 See `make-specifier'.
|
|
|
599 */
|
|
|
600 (object))
|
|
|
601 {
|
|
|
602 return SPECIFIERP (object) ? Qt : Qnil;
|
|
|
603 }
|
|
|
604
|
|
|
605 DEFUN ("specifier-type", Fspecifier_type, 1, 1, 0, /*
|
|
|
606 Return the type of SPECIFIER.
|
|
|
607 */
|
|
|
608 (specifier))
|
|
|
609 {
|
|
|
610 CHECK_SPECIFIER (specifier);
|
|
|
611 return intern (XSPECIFIER (specifier)->methods->name);
|
|
|
612 }
|
|
|
613
|
|
|
614
|
|
|
615 /************************************************************************/
|
|
|
616 /* Locales and domains */
|
|
|
617 /************************************************************************/
|
|
|
618
|
|
|
619 DEFUN ("valid-specifier-locale-p", Fvalid_specifier_locale_p, 1, 1, 0, /*
|
|
|
620 Return t if LOCALE is a valid specifier locale.
|
|
|
621 Valid locales are devices, frames, windows, buffers, and 'global.
|
|
|
622 \(nil is not valid.)
|
|
|
623 */
|
|
|
624 (locale))
|
|
|
625 {
|
|
|
626 /* This cannot GC. */
|
|
|
627 return ((DEVICEP (locale) && DEVICE_LIVE_P (XDEVICE (locale))) ||
|
|
|
628 (FRAMEP (locale) && FRAME_LIVE_P (XFRAME (locale))) ||
|
|
|
629 (BUFFERP (locale) && BUFFER_LIVE_P (XBUFFER (locale))) ||
|
|
|
630 /* dead windows are allowed because they may become live
|
|
|
631 windows again when a window configuration is restored */
|
|
|
632 WINDOWP (locale) ||
|
|
|
633 EQ (locale, Qglobal))
|
|
|
634 ? Qt : Qnil;
|
|
|
635 }
|
|
|
636
|
|
|
637 DEFUN ("valid-specifier-domain-p", Fvalid_specifier_domain_p, 1, 1, 0, /*
|
|
|
638 Return t if DOMAIN is a valid specifier domain.
|
|
|
639 A domain is used to instance a specifier (i.e. determine the specifier's
|
|
442
|
640 value in that domain). Valid domains are image instances, windows, frames,
|
|
|
641 and devices. \(nil is not valid.) image instances are pseudo-domains since
|
|
|
642 instantiation will actually occur in the window the image instance itself is
|
|
|
643 instantiated in.
|
|
428
|
644 */
|
|
|
645 (domain))
|
|
|
646 {
|
|
|
647 /* This cannot GC. */
|
|
|
648 return ((DEVICEP (domain) && DEVICE_LIVE_P (XDEVICE (domain))) ||
|
|
|
649 (FRAMEP (domain) && FRAME_LIVE_P (XFRAME (domain))) ||
|
|
442
|
650 (WINDOWP (domain) && WINDOW_LIVE_P (XWINDOW (domain))) ||
|
|
|
651 /* #### get image instances out of domains! */
|
|
|
652 IMAGE_INSTANCEP (domain))
|
|
428
|
653 ? Qt : Qnil;
|
|
|
654 }
|
|
|
655
|
|
442
|
656 DEFUN ("valid-specifier-locale-type-p", Fvalid_specifier_locale_type_p, 1, 1, 0,
|
|
|
657 /*
|
|
428
|
658 Given a specifier LOCALE-TYPE, return non-nil if it is valid.
|
|
|
659 Valid locale types are 'global, 'device, 'frame, 'window, and 'buffer.
|
|
|
660 \(Note, however, that in functions that accept either a locale or a locale
|
|
|
661 type, 'global is considered an individual locale.)
|
|
|
662 */
|
|
|
663 (locale_type))
|
|
|
664 {
|
|
|
665 /* This cannot GC. */
|
|
|
666 return (EQ (locale_type, Qglobal) ||
|
|
|
667 EQ (locale_type, Qdevice) ||
|
|
|
668 EQ (locale_type, Qframe) ||
|
|
|
669 EQ (locale_type, Qwindow) ||
|
|
|
670 EQ (locale_type, Qbuffer)) ? Qt : Qnil;
|
|
|
671 }
|
|
|
672
|
|
|
673 static void
|
|
|
674 check_valid_locale_or_locale_type (Lisp_Object locale)
|
|
|
675 {
|
|
|
676 /* This cannot GC. */
|
|
|
677 if (EQ (locale, Qall) ||
|
|
|
678 !NILP (Fvalid_specifier_locale_p (locale)) ||
|
|
|
679 !NILP (Fvalid_specifier_locale_type_p (locale)))
|
|
|
680 return;
|
|
442
|
681 signal_type_error (Qspecifier_argument_error,
|
|
|
682 "Invalid specifier locale or locale type", locale);
|
|
428
|
683 }
|
|
|
684
|
|
|
685 DEFUN ("specifier-locale-type-from-locale", Fspecifier_locale_type_from_locale,
|
|
|
686 1, 1, 0, /*
|
|
|
687 Given a specifier LOCALE, return its type.
|
|
|
688 */
|
|
|
689 (locale))
|
|
|
690 {
|
|
|
691 /* This cannot GC. */
|
|
|
692 if (NILP (Fvalid_specifier_locale_p (locale)))
|
|
442
|
693 signal_type_error (Qspecifier_argument_error, "Invalid specifier locale",
|
|
|
694 locale);
|
|
428
|
695 if (DEVICEP (locale)) return Qdevice;
|
|
|
696 if (FRAMEP (locale)) return Qframe;
|
|
|
697 if (WINDOWP (locale)) return Qwindow;
|
|
|
698 if (BUFFERP (locale)) return Qbuffer;
|
|
|
699 assert (EQ (locale, Qglobal));
|
|
|
700 return Qglobal;
|
|
|
701 }
|
|
|
702
|
|
|
703 static Lisp_Object
|
|
|
704 decode_locale (Lisp_Object locale)
|
|
|
705 {
|
|
|
706 /* This cannot GC. */
|
|
|
707 if (NILP (locale))
|
|
|
708 return Qglobal;
|
|
|
709 else if (!NILP (Fvalid_specifier_locale_p (locale)))
|
|
|
710 return locale;
|
|
|
711 else
|
|
442
|
712 signal_type_error (Qspecifier_argument_error, "Invalid specifier locale",
|
|
|
713 locale);
|
|
428
|
714
|
|
|
715 return Qnil;
|
|
|
716 }
|
|
|
717
|
|
|
718 static enum spec_locale_type
|
|
|
719 decode_locale_type (Lisp_Object locale_type)
|
|
|
720 {
|
|
|
721 /* This cannot GC. */
|
|
|
722 if (EQ (locale_type, Qglobal)) return LOCALE_GLOBAL;
|
|
|
723 if (EQ (locale_type, Qdevice)) return LOCALE_DEVICE;
|
|
|
724 if (EQ (locale_type, Qframe)) return LOCALE_FRAME;
|
|
|
725 if (EQ (locale_type, Qwindow)) return LOCALE_WINDOW;
|
|
|
726 if (EQ (locale_type, Qbuffer)) return LOCALE_BUFFER;
|
|
|
727
|
|
442
|
728 signal_type_error (Qspecifier_argument_error, "Invalid specifier locale type",
|
|
|
729 locale_type);
|
|
428
|
730 return LOCALE_GLOBAL; /* not reached */
|
|
|
731 }
|
|
|
732
|
|
|
733 Lisp_Object
|
|
|
734 decode_locale_list (Lisp_Object locale)
|
|
|
735 {
|
|
|
736 /* This cannot GC. */
|
|
|
737 /* The return value of this function must be GCPRO'd. */
|
|
|
738 if (NILP (locale))
|
|
|
739 {
|
|
|
740 return list1 (Qall);
|
|
|
741 }
|
|
|
742 else if (CONSP (locale))
|
|
|
743 {
|
|
|
744 EXTERNAL_LIST_LOOP_2 (elt, locale)
|
|
|
745 check_valid_locale_or_locale_type (elt);
|
|
|
746 return locale;
|
|
|
747 }
|
|
|
748 else
|
|
|
749 {
|
|
|
750 check_valid_locale_or_locale_type (locale);
|
|
|
751 return list1 (locale);
|
|
|
752 }
|
|
|
753 }
|
|
|
754
|
|
|
755 static enum spec_locale_type
|
|
|
756 locale_type_from_locale (Lisp_Object locale)
|
|
|
757 {
|
|
|
758 return decode_locale_type (Fspecifier_locale_type_from_locale (locale));
|
|
|
759 }
|
|
|
760
|
|
|
761 static void
|
|
|
762 check_valid_domain (Lisp_Object domain)
|
|
|
763 {
|
|
|
764 if (NILP (Fvalid_specifier_domain_p (domain)))
|
|
442
|
765 signal_type_error (Qspecifier_argument_error, "Invalid specifier domain",
|
|
|
766 domain);
|
|
428
|
767 }
|
|
|
768
|
|
442
|
769 Lisp_Object
|
|
428
|
770 decode_domain (Lisp_Object domain)
|
|
|
771 {
|
|
|
772 if (NILP (domain))
|
|
|
773 return Fselected_window (Qnil);
|
|
|
774 check_valid_domain (domain);
|
|
|
775 return domain;
|
|
|
776 }
|
|
|
777
|
|
|
778
|
|
|
779 /************************************************************************/
|
|
|
780 /* Tags */
|
|
|
781 /************************************************************************/
|
|
|
782
|
|
|
783 DEFUN ("valid-specifier-tag-p", Fvalid_specifier_tag_p, 1, 1, 0, /*
|
|
|
784 Return non-nil if TAG is a valid specifier tag.
|
|
|
785 See also `valid-specifier-tag-set-p'.
|
|
|
786 */
|
|
|
787 (tag))
|
|
|
788 {
|
|
|
789 return (valid_console_type_p (tag) ||
|
|
|
790 valid_device_class_p (tag) ||
|
|
|
791 !NILP (assq_no_quit (tag, Vuser_defined_tags))) ? Qt : Qnil;
|
|
|
792 }
|
|
|
793
|
|
|
794 DEFUN ("valid-specifier-tag-set-p", Fvalid_specifier_tag_set_p, 1, 1, 0, /*
|
|
|
795 Return non-nil if TAG-SET is a valid specifier tag set.
|
|
|
796
|
|
|
797 A specifier tag set is an entity that is attached to an instantiator
|
|
|
798 and can be used to restrict the scope of that instantiator to a
|
|
|
799 particular device class or device type and/or to mark instantiators
|
|
|
800 added by a particular package so that they can be later removed.
|
|
|
801
|
|
|
802 A specifier tag set consists of a list of zero of more specifier tags,
|
|
|
803 each of which is a symbol that is recognized by XEmacs as a tag.
|
|
|
804 \(The valid device types and device classes are always tags, as are
|
|
|
805 any tags defined by `define-specifier-tag'.) It is called a "tag set"
|
|
|
806 \(as opposed to a list) because the order of the tags or the number of
|
|
|
807 times a particular tag occurs does not matter.
|
|
|
808
|
|
|
809 Each tag has a predicate associated with it, which specifies whether
|
|
|
810 that tag applies to a particular device. The tags which are device types
|
|
|
811 and classes match devices of that type or class. User-defined tags can
|
|
|
812 have any predicate, or none (meaning that all devices match). When
|
|
|
813 attempting to instance a specifier, a particular instantiator is only
|
|
|
814 considered if the device of the domain being instanced over matches
|
|
|
815 all tags in the tag set attached to that instantiator.
|
|
|
816
|
|
|
817 Most of the time, a tag set is not specified, and the instantiator
|
|
|
818 gets a null tag set, which matches all devices.
|
|
|
819 */
|
|
|
820 (tag_set))
|
|
|
821 {
|
|
|
822 Lisp_Object rest;
|
|
|
823
|
|
|
824 for (rest = tag_set; !NILP (rest); rest = XCDR (rest))
|
|
|
825 {
|
|
|
826 if (!CONSP (rest))
|
|
|
827 return Qnil;
|
|
|
828 if (NILP (Fvalid_specifier_tag_p (XCAR (rest))))
|
|
|
829 return Qnil;
|
|
|
830 QUIT;
|
|
|
831 }
|
|
|
832 return Qt;
|
|
|
833 }
|
|
|
834
|
|
|
835 Lisp_Object
|
|
|
836 decode_specifier_tag_set (Lisp_Object tag_set)
|
|
|
837 {
|
|
|
838 /* The return value of this function must be GCPRO'd. */
|
|
|
839 if (!NILP (Fvalid_specifier_tag_p (tag_set)))
|
|
|
840 return list1 (tag_set);
|
|
|
841 if (NILP (Fvalid_specifier_tag_set_p (tag_set)))
|
|
442
|
842 signal_type_error (Qspecifier_argument_error, "Invalid specifier tag-set",
|
|
|
843 tag_set);
|
|
428
|
844 return tag_set;
|
|
|
845 }
|
|
|
846
|
|
|
847 static Lisp_Object
|
|
|
848 canonicalize_tag_set (Lisp_Object tag_set)
|
|
|
849 {
|
|
|
850 int len = XINT (Flength (tag_set));
|
|
|
851 Lisp_Object *tags, rest;
|
|
|
852 int i, j;
|
|
|
853
|
|
|
854 /* We assume in this function that the tag_set has already been
|
|
|
855 validated, so there are no surprises. */
|
|
|
856
|
|
|
857 if (len == 0 || len == 1)
|
|
|
858 /* most common case */
|
|
|
859 return tag_set;
|
|
|
860
|
|
|
861 tags = alloca_array (Lisp_Object, len);
|
|
|
862
|
|
|
863 i = 0;
|
|
|
864 LIST_LOOP (rest, tag_set)
|
|
|
865 tags[i++] = XCAR (rest);
|
|
|
866
|
|
|
867 /* Sort the list of tags. We use a bubble sort here (copied from
|
|
|
868 extent_fragment_update()) -- reduces the function call overhead,
|
|
|
869 and is the fastest sort for small numbers of items. */
|
|
|
870
|
|
|
871 for (i = 1; i < len; i++)
|
|
|
872 {
|
|
|
873 j = i - 1;
|
|
|
874 while (j >= 0 &&
|
|
|
875 strcmp ((char *) string_data (XSYMBOL (tags[j])->name),
|
|
|
876 (char *) string_data (XSYMBOL (tags[j+1])->name)) > 0)
|
|
|
877 {
|
|
|
878 Lisp_Object tmp = tags[j];
|
|
|
879 tags[j] = tags[j+1];
|
|
|
880 tags[j+1] = tmp;
|
|
|
881 j--;
|
|
|
882 }
|
|
|
883 }
|
|
|
884
|
|
|
885 /* Now eliminate duplicates. */
|
|
|
886
|
|
|
887 for (i = 1, j = 1; i < len; i++)
|
|
|
888 {
|
|
|
889 /* j holds the destination, i the source. */
|
|
|
890 if (!EQ (tags[i], tags[i-1]))
|
|
|
891 tags[j++] = tags[i];
|
|
|
892 }
|
|
|
893
|
|
|
894 return Flist (j, tags);
|
|
|
895 }
|
|
|
896
|
|
|
897 DEFUN ("canonicalize-tag-set", Fcanonicalize_tag_set, 1, 1, 0, /*
|
|
|
898 Canonicalize the given tag set.
|
|
|
899 Two canonicalized tag sets can be compared with `equal' to see if they
|
|
|
900 represent the same tag set. (Specifically, canonicalizing involves
|
|
|
901 sorting by symbol name and removing duplicates.)
|
|
|
902 */
|
|
|
903 (tag_set))
|
|
|
904 {
|
|
|
905 if (NILP (Fvalid_specifier_tag_set_p (tag_set)))
|
|
442
|
906 signal_type_error (Qspecifier_argument_error, "Invalid tag set", tag_set);
|
|
428
|
907 return canonicalize_tag_set (tag_set);
|
|
|
908 }
|
|
|
909
|
|
|
910 static int
|
|
|
911 device_matches_specifier_tag_set_p (Lisp_Object device, Lisp_Object tag_set)
|
|
|
912 {
|
|
|
913 Lisp_Object devtype, devclass, rest;
|
|
|
914 struct device *d = XDEVICE (device);
|
|
|
915
|
|
|
916 devtype = DEVICE_TYPE (d);
|
|
|
917 devclass = DEVICE_CLASS (d);
|
|
|
918
|
|
|
919 LIST_LOOP (rest, tag_set)
|
|
|
920 {
|
|
|
921 Lisp_Object tag = XCAR (rest);
|
|
|
922 Lisp_Object assoc;
|
|
|
923
|
|
|
924 if (EQ (tag, devtype) || EQ (tag, devclass))
|
|
|
925 continue;
|
|
|
926 assoc = assq_no_quit (tag, DEVICE_USER_DEFINED_TAGS (d));
|
|
|
927 /* other built-in tags (device types/classes) are not in
|
|
|
928 the user-defined-tags list. */
|
|
|
929 if (NILP (assoc) || NILP (XCDR (assoc)))
|
|
|
930 return 0;
|
|
|
931 }
|
|
|
932
|
|
|
933 return 1;
|
|
|
934 }
|
|
|
935
|
|
442
|
936 DEFUN ("device-matches-specifier-tag-set-p",
|
|
|
937 Fdevice_matches_specifier_tag_set_p, 2, 2, 0, /*
|
|
428
|
938 Return non-nil if DEVICE matches specifier tag set TAG-SET.
|
|
|
939 This means that DEVICE matches each tag in the tag set. (Every
|
|
|
940 tag recognized by XEmacs has a predicate associated with it that
|
|
|
941 specifies which devices match it.)
|
|
|
942 */
|
|
|
943 (device, tag_set))
|
|
|
944 {
|
|
|
945 CHECK_LIVE_DEVICE (device);
|
|
|
946
|
|
|
947 if (NILP (Fvalid_specifier_tag_set_p (tag_set)))
|
|
442
|
948 signal_type_error (Qspecifier_argument_error, "Invalid tag set", tag_set);
|
|
428
|
949
|
|
|
950 return device_matches_specifier_tag_set_p (device, tag_set) ? Qt : Qnil;
|
|
|
951 }
|
|
|
952
|
|
|
953 DEFUN ("define-specifier-tag", Fdefine_specifier_tag, 1, 2, 0, /*
|
|
|
954 Define a new specifier tag.
|
|
|
955 If PREDICATE is specified, it should be a function of one argument
|
|
|
956 \(a device) that specifies whether the tag matches that particular
|
|
|
957 device. If PREDICATE is omitted, the tag matches all devices.
|
|
|
958
|
|
|
959 You can redefine an existing user-defined specifier tag. However,
|
|
|
960 you cannot redefine the built-in specifier tags (the device types
|
|
|
961 and classes) or the symbols nil, t, 'all, or 'global.
|
|
|
962 */
|
|
|
963 (tag, predicate))
|
|
|
964 {
|
|
|
965 Lisp_Object assoc, devcons, concons;
|
|
|
966 int recompute = 0;
|
|
|
967
|
|
|
968 CHECK_SYMBOL (tag);
|
|
|
969 if (valid_device_class_p (tag) ||
|
|
|
970 valid_console_type_p (tag))
|
|
442
|
971 signal_type_error (Qspecifier_change_error,
|
|
|
972 "Cannot redefine built-in specifier tags", tag);
|
|
428
|
973 /* Try to prevent common instantiators and locales from being
|
|
|
974 redefined, to reduce ambiguity */
|
|
|
975 if (NILP (tag) || EQ (tag, Qt) || EQ (tag, Qall) || EQ (tag, Qglobal))
|
|
442
|
976 signal_type_error (Qspecifier_change_error, "Cannot define nil, t, 'all, or 'global",
|
|
|
977 tag);
|
|
428
|
978 assoc = assq_no_quit (tag, Vuser_defined_tags);
|
|
|
979 if (NILP (assoc))
|
|
|
980 {
|
|
|
981 recompute = 1;
|
|
|
982 Vuser_defined_tags = Fcons (Fcons (tag, predicate), Vuser_defined_tags);
|
|
|
983 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
984 {
|
|
|
985 struct device *d = XDEVICE (XCAR (devcons));
|
|
|
986 /* Initially set the value to t in case of error
|
|
|
987 in predicate */
|
|
|
988 DEVICE_USER_DEFINED_TAGS (d) =
|
|
|
989 Fcons (Fcons (tag, Qt), DEVICE_USER_DEFINED_TAGS (d));
|
|
|
990 }
|
|
|
991 }
|
|
|
992 else if (!NILP (predicate) && !NILP (XCDR (assoc)))
|
|
|
993 {
|
|
|
994 recompute = 1;
|
|
|
995 XCDR (assoc) = predicate;
|
|
|
996 }
|
|
|
997
|
|
|
998 /* recompute the tag values for all devices. However, in the special
|
|
|
999 case where both the old and new predicates are nil, we know that
|
|
|
1000 we don't have to do this. (It's probably common for people to
|
|
|
1001 call (define-specifier-tag) more than once on the same tag,
|
|
|
1002 and the most common case is where PREDICATE is not specified.) */
|
|
|
1003
|
|
|
1004 if (recompute)
|
|
|
1005 {
|
|
|
1006 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
1007 {
|
|
|
1008 Lisp_Object device = XCAR (devcons);
|
|
|
1009 assoc = assq_no_quit (tag,
|
|
|
1010 DEVICE_USER_DEFINED_TAGS (XDEVICE (device)));
|
|
|
1011 assert (CONSP (assoc));
|
|
|
1012 if (NILP (predicate))
|
|
|
1013 XCDR (assoc) = Qt;
|
|
|
1014 else
|
|
|
1015 XCDR (assoc) = !NILP (call1 (predicate, device)) ? Qt : Qnil;
|
|
|
1016 }
|
|
|
1017 }
|
|
|
1018
|
|
|
1019 return Qnil;
|
|
|
1020 }
|
|
|
1021
|
|
|
1022 /* Called at device-creation time to initialize the user-defined
|
|
|
1023 tag values for the newly-created device. */
|
|
|
1024
|
|
|
1025 void
|
|
|
1026 setup_device_initial_specifier_tags (struct device *d)
|
|
|
1027 {
|
|
|
1028 Lisp_Object rest, rest2;
|
|
|
1029 Lisp_Object device;
|
|
|
1030
|
|
|
1031 XSETDEVICE (device, d);
|
|
|
1032
|
|
|
1033 DEVICE_USER_DEFINED_TAGS (d) = Fcopy_alist (Vuser_defined_tags);
|
|
|
1034
|
|
|
1035 /* Now set up the initial values */
|
|
|
1036 LIST_LOOP (rest, DEVICE_USER_DEFINED_TAGS (d))
|
|
|
1037 XCDR (XCAR (rest)) = Qt;
|
|
|
1038
|
|
|
1039 for (rest = Vuser_defined_tags, rest2 = DEVICE_USER_DEFINED_TAGS (d);
|
|
|
1040 !NILP (rest); rest = XCDR (rest), rest2 = XCDR (rest2))
|
|
|
1041 {
|
|
|
1042 Lisp_Object predicate = XCDR (XCAR (rest));
|
|
|
1043 if (NILP (predicate))
|
|
|
1044 XCDR (XCAR (rest2)) = Qt;
|
|
|
1045 else
|
|
|
1046 XCDR (XCAR (rest2)) = !NILP (call1 (predicate, device)) ? Qt : Qnil;
|
|
|
1047 }
|
|
|
1048 }
|
|
|
1049
|
|
442
|
1050 DEFUN ("device-matching-specifier-tag-list",
|
|
|
1051 Fdevice_matching_specifier_tag_list,
|
|
428
|
1052 0, 1, 0, /*
|
|
|
1053 Return a list of all specifier tags matching DEVICE.
|
|
|
1054 DEVICE defaults to the selected device if omitted.
|
|
|
1055 */
|
|
|
1056 (device))
|
|
|
1057 {
|
|
|
1058 struct device *d = decode_device (device);
|
|
|
1059 Lisp_Object rest, list = Qnil;
|
|
|
1060 struct gcpro gcpro1;
|
|
|
1061
|
|
|
1062 GCPRO1 (list);
|
|
|
1063
|
|
|
1064 LIST_LOOP (rest, DEVICE_USER_DEFINED_TAGS (d))
|
|
|
1065 {
|
|
|
1066 if (!NILP (XCDR (XCAR (rest))))
|
|
|
1067 list = Fcons (XCAR (XCAR (rest)), list);
|
|
|
1068 }
|
|
|
1069
|
|
|
1070 list = Fnreverse (list);
|
|
|
1071 list = Fcons (DEVICE_CLASS (d), list);
|
|
|
1072 list = Fcons (DEVICE_TYPE (d), list);
|
|
|
1073
|
|
|
1074 RETURN_UNGCPRO (list);
|
|
|
1075 }
|
|
|
1076
|
|
|
1077 DEFUN ("specifier-tag-list", Fspecifier_tag_list, 0, 0, 0, /*
|
|
|
1078 Return a list of all currently-defined specifier tags.
|
|
|
1079 This includes the built-in ones (the device types and classes).
|
|
|
1080 */
|
|
|
1081 ())
|
|
|
1082 {
|
|
|
1083 Lisp_Object list = Qnil, rest;
|
|
|
1084 struct gcpro gcpro1;
|
|
|
1085
|
|
|
1086 GCPRO1 (list);
|
|
|
1087
|
|
|
1088 LIST_LOOP (rest, Vuser_defined_tags)
|
|
|
1089 list = Fcons (XCAR (XCAR (rest)), list);
|
|
|
1090
|
|
|
1091 list = Fnreverse (list);
|
|
|
1092 list = nconc2 (Fcopy_sequence (Vdevice_class_list), list);
|
|
|
1093 list = nconc2 (Fcopy_sequence (Vconsole_type_list), list);
|
|
|
1094
|
|
|
1095 RETURN_UNGCPRO (list);
|
|
|
1096 }
|
|
|
1097
|
|
|
1098 DEFUN ("specifier-tag-predicate", Fspecifier_tag_predicate, 1, 1, 0, /*
|
|
|
1099 Return the predicate for the given specifier tag.
|
|
|
1100 */
|
|
|
1101 (tag))
|
|
|
1102 {
|
|
|
1103 /* The return value of this function must be GCPRO'd. */
|
|
|
1104 CHECK_SYMBOL (tag);
|
|
|
1105
|
|
|
1106 if (NILP (Fvalid_specifier_tag_p (tag)))
|
|
442
|
1107 signal_type_error (Qspecifier_argument_error, "Invalid specifier tag",
|
|
|
1108 tag);
|
|
428
|
1109
|
|
|
1110 /* Make up some predicates for the built-in types */
|
|
|
1111
|
|
|
1112 if (valid_console_type_p (tag))
|
|
|
1113 return list3 (Qlambda, list1 (Qdevice),
|
|
|
1114 list3 (Qeq, list2 (Qquote, tag),
|
|
|
1115 list2 (Qconsole_type, Qdevice)));
|
|
|
1116
|
|
|
1117 if (valid_device_class_p (tag))
|
|
|
1118 return list3 (Qlambda, list1 (Qdevice),
|
|
|
1119 list3 (Qeq, list2 (Qquote, tag),
|
|
|
1120 list2 (Qdevice_class, Qdevice)));
|
|
|
1121
|
|
|
1122 return XCDR (assq_no_quit (tag, Vuser_defined_tags));
|
|
|
1123 }
|
|
|
1124
|
|
|
1125 /* Return true if A "matches" B. If EXACT_P is 0, A must be a subset of B.
|
|
|
1126 Otherwise, A must be `equal' to B. The sets must be canonicalized. */
|
|
|
1127 static int
|
|
|
1128 tag_sets_match_p (Lisp_Object a, Lisp_Object b, int exact_p)
|
|
|
1129 {
|
|
|
1130 if (!exact_p)
|
|
|
1131 {
|
|
|
1132 while (!NILP (a) && !NILP (b))
|
|
|
1133 {
|
|
|
1134 if (EQ (XCAR (a), XCAR (b)))
|
|
|
1135 a = XCDR (a);
|
|
|
1136 b = XCDR (b);
|
|
|
1137 }
|
|
|
1138
|
|
|
1139 return NILP (a);
|
|
|
1140 }
|
|
|
1141 else
|
|
|
1142 {
|
|
|
1143 while (!NILP (a) && !NILP (b))
|
|
|
1144 {
|
|
|
1145 if (!EQ (XCAR (a), XCAR (b)))
|
|
|
1146 return 0;
|
|
|
1147 a = XCDR (a);
|
|
|
1148 b = XCDR (b);
|
|
|
1149 }
|
|
|
1150
|
|
|
1151 return NILP (a) && NILP (b);
|
|
|
1152 }
|
|
|
1153 }
|
|
|
1154
|
|
|
1155
|
|
|
1156 /************************************************************************/
|
|
|
1157 /* Spec-lists and inst-lists */
|
|
|
1158 /************************************************************************/
|
|
|
1159
|
|
|
1160 static Lisp_Object
|
|
|
1161 call_validate_method (Lisp_Object boxed_method, Lisp_Object instantiator)
|
|
|
1162 {
|
|
|
1163 ((void (*)(Lisp_Object)) get_opaque_ptr (boxed_method)) (instantiator);
|
|
|
1164 return Qt;
|
|
|
1165 }
|
|
|
1166
|
|
|
1167 static Lisp_Object
|
|
|
1168 check_valid_instantiator (Lisp_Object instantiator,
|
|
|
1169 struct specifier_methods *meths,
|
|
|
1170 Error_behavior errb)
|
|
|
1171 {
|
|
|
1172 if (meths->validate_method)
|
|
|
1173 {
|
|
|
1174 Lisp_Object retval;
|
|
|
1175
|
|
|
1176 if (ERRB_EQ (errb, ERROR_ME))
|
|
|
1177 {
|
|
|
1178 (meths->validate_method) (instantiator);
|
|
|
1179 retval = Qt;
|
|
|
1180 }
|
|
|
1181 else
|
|
|
1182 {
|
|
|
1183 Lisp_Object opaque = make_opaque_ptr ((void *)
|
|
|
1184 meths->validate_method);
|
|
|
1185 struct gcpro gcpro1;
|
|
|
1186
|
|
|
1187 GCPRO1 (opaque);
|
|
|
1188 retval = call_with_suspended_errors
|
|
|
1189 ((lisp_fn_t) call_validate_method,
|
|
|
1190 Qnil, Qspecifier, errb, 2, opaque, instantiator);
|
|
|
1191
|
|
|
1192 free_opaque_ptr (opaque);
|
|
|
1193 UNGCPRO;
|
|
|
1194 }
|
|
|
1195
|
|
|
1196 return retval;
|
|
|
1197 }
|
|
|
1198 return Qt;
|
|
|
1199 }
|
|
|
1200
|
|
|
1201 DEFUN ("check-valid-instantiator", Fcheck_valid_instantiator, 2, 2, 0, /*
|
|
|
1202 Signal an error if INSTANTIATOR is invalid for SPECIFIER-TYPE.
|
|
|
1203 */
|
|
|
1204 (instantiator, specifier_type))
|
|
|
1205 {
|
|
|
1206 struct specifier_methods *meths = decode_specifier_type (specifier_type,
|
|
|
1207 ERROR_ME);
|
|
|
1208
|
|
|
1209 return check_valid_instantiator (instantiator, meths, ERROR_ME);
|
|
|
1210 }
|
|
|
1211
|
|
|
1212 DEFUN ("valid-instantiator-p", Fvalid_instantiator_p, 2, 2, 0, /*
|
|
|
1213 Return non-nil if INSTANTIATOR is valid for SPECIFIER-TYPE.
|
|
|
1214 */
|
|
|
1215 (instantiator, specifier_type))
|
|
|
1216 {
|
|
|
1217 struct specifier_methods *meths = decode_specifier_type (specifier_type,
|
|
|
1218 ERROR_ME);
|
|
|
1219
|
|
|
1220 return check_valid_instantiator (instantiator, meths, ERROR_ME_NOT);
|
|
|
1221 }
|
|
|
1222
|
|
|
1223 static Lisp_Object
|
|
|
1224 check_valid_inst_list (Lisp_Object inst_list, struct specifier_methods *meths,
|
|
|
1225 Error_behavior errb)
|
|
|
1226 {
|
|
|
1227 Lisp_Object rest;
|
|
|
1228
|
|
|
1229 LIST_LOOP (rest, inst_list)
|
|
|
1230 {
|
|
|
1231 Lisp_Object inst_pair, tag_set;
|
|
|
1232
|
|
|
1233 if (!CONSP (rest))
|
|
|
1234 {
|
|
442
|
1235 maybe_signal_type_error (Qspecifier_syntax_error,
|
|
|
1236 "Invalid instantiator list", inst_list,
|
|
428
|
1237 Qspecifier, errb);
|
|
|
1238 return Qnil;
|
|
|
1239 }
|
|
|
1240 if (!CONSP (inst_pair = XCAR (rest)))
|
|
|
1241 {
|
|
442
|
1242 maybe_signal_type_error (Qspecifier_syntax_error,
|
|
|
1243 "Invalid instantiator pair", inst_pair,
|
|
428
|
1244 Qspecifier, errb);
|
|
|
1245 return Qnil;
|
|
|
1246 }
|
|
|
1247 if (NILP (Fvalid_specifier_tag_set_p (tag_set = XCAR (inst_pair))))
|
|
|
1248 {
|
|
442
|
1249 maybe_signal_type_error (Qspecifier_syntax_error,
|
|
|
1250 "Invalid specifier tag", tag_set,
|
|
428
|
1251 Qspecifier, errb);
|
|
|
1252 return Qnil;
|
|
|
1253 }
|
|
|
1254
|
|
|
1255 if (NILP (check_valid_instantiator (XCDR (inst_pair), meths, errb)))
|
|
|
1256 return Qnil;
|
|
|
1257 }
|
|
|
1258
|
|
|
1259 return Qt;
|
|
|
1260 }
|
|
|
1261
|
|
|
1262 DEFUN ("check-valid-inst-list", Fcheck_valid_inst_list, 2, 2, 0, /*
|
|
|
1263 Signal an error if INST-LIST is invalid for specifier type TYPE.
|
|
|
1264 */
|
|
|
1265 (inst_list, type))
|
|
|
1266 {
|
|
|
1267 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
1268
|
|
|
1269 return check_valid_inst_list (inst_list, meths, ERROR_ME);
|
|
|
1270 }
|
|
|
1271
|
|
|
1272 DEFUN ("valid-inst-list-p", Fvalid_inst_list_p, 2, 2, 0, /*
|
|
|
1273 Return non-nil if INST-LIST is valid for specifier type TYPE.
|
|
|
1274 */
|
|
|
1275 (inst_list, type))
|
|
|
1276 {
|
|
|
1277 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
1278
|
|
|
1279 return check_valid_inst_list (inst_list, meths, ERROR_ME_NOT);
|
|
|
1280 }
|
|
|
1281
|
|
|
1282 static Lisp_Object
|
|
|
1283 check_valid_spec_list (Lisp_Object spec_list, struct specifier_methods *meths,
|
|
|
1284 Error_behavior errb)
|
|
|
1285 {
|
|
|
1286 Lisp_Object rest;
|
|
|
1287
|
|
|
1288 LIST_LOOP (rest, spec_list)
|
|
|
1289 {
|
|
|
1290 Lisp_Object spec, locale;
|
|
|
1291 if (!CONSP (rest) || !CONSP (spec = XCAR (rest)))
|
|
|
1292 {
|
|
442
|
1293 maybe_signal_type_error (Qspecifier_syntax_error,
|
|
|
1294 "Invalid specification list", spec_list,
|
|
428
|
1295 Qspecifier, errb);
|
|
|
1296 return Qnil;
|
|
|
1297 }
|
|
|
1298 if (NILP (Fvalid_specifier_locale_p (locale = XCAR (spec))))
|
|
|
1299 {
|
|
442
|
1300 maybe_signal_type_error (Qspecifier_syntax_error,
|
|
|
1301 "Invalid specifier locale", locale,
|
|
428
|
1302 Qspecifier, errb);
|
|
|
1303 return Qnil;
|
|
|
1304 }
|
|
|
1305
|
|
|
1306 if (NILP (check_valid_inst_list (XCDR (spec), meths, errb)))
|
|
|
1307 return Qnil;
|
|
|
1308 }
|
|
|
1309
|
|
|
1310 return Qt;
|
|
|
1311 }
|
|
|
1312
|
|
|
1313 DEFUN ("check-valid-spec-list", Fcheck_valid_spec_list, 2, 2, 0, /*
|
|
|
1314 Signal an error if SPEC-LIST is invalid for specifier type TYPE.
|
|
|
1315 */
|
|
|
1316 (spec_list, type))
|
|
|
1317 {
|
|
|
1318 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
1319
|
|
|
1320 return check_valid_spec_list (spec_list, meths, ERROR_ME);
|
|
|
1321 }
|
|
|
1322
|
|
|
1323 DEFUN ("valid-spec-list-p", Fvalid_spec_list_p, 2, 2, 0, /*
|
|
|
1324 Return non-nil if SPEC-LIST is valid for specifier type TYPE.
|
|
|
1325 */
|
|
|
1326 (spec_list, type))
|
|
|
1327 {
|
|
|
1328 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
1329
|
|
|
1330 return check_valid_spec_list (spec_list, meths, ERROR_ME_NOT);
|
|
|
1331 }
|
|
|
1332
|
|
|
1333 enum spec_add_meth
|
|
|
1334 decode_how_to_add_specification (Lisp_Object how_to_add)
|
|
|
1335 {
|
|
|
1336 if (NILP (how_to_add) || EQ (Qremove_tag_set_prepend, how_to_add))
|
|
|
1337 return SPEC_REMOVE_TAG_SET_PREPEND;
|
|
|
1338 if (EQ (Qremove_tag_set_append, how_to_add))
|
|
|
1339 return SPEC_REMOVE_TAG_SET_APPEND;
|
|
|
1340 if (EQ (Qappend, how_to_add))
|
|
|
1341 return SPEC_APPEND;
|
|
|
1342 if (EQ (Qprepend, how_to_add))
|
|
|
1343 return SPEC_PREPEND;
|
|
|
1344 if (EQ (Qremove_locale, how_to_add))
|
|
|
1345 return SPEC_REMOVE_LOCALE;
|
|
|
1346 if (EQ (Qremove_locale_type, how_to_add))
|
|
|
1347 return SPEC_REMOVE_LOCALE_TYPE;
|
|
|
1348 if (EQ (Qremove_all, how_to_add))
|
|
|
1349 return SPEC_REMOVE_ALL;
|
|
|
1350
|
|
442
|
1351 signal_type_error (Qspecifier_argument_error, "Invalid `how-to-add' flag",
|
|
|
1352 how_to_add);
|
|
428
|
1353
|
|
|
1354 return SPEC_PREPEND; /* not reached */
|
|
|
1355 }
|
|
|
1356
|
|
|
1357 /* Given a specifier object SPEC, return bodily specifier if SPEC is a
|
|
|
1358 ghost specifier, otherwise return the object itself
|
|
|
1359 */
|
|
|
1360 static Lisp_Object
|
|
|
1361 bodily_specifier (Lisp_Object spec)
|
|
|
1362 {
|
|
|
1363 return (GHOST_SPECIFIER_P (XSPECIFIER (spec))
|
|
|
1364 ? XSPECIFIER(spec)->magic_parent : spec);
|
|
|
1365 }
|
|
|
1366
|
|
|
1367 /* Signal error if (specifier SPEC is read-only.
|
|
|
1368 Read only are ghost specifiers unless Vunlock_ghost_specifiers is
|
|
|
1369 non-nil. All other specifiers are read-write.
|
|
|
1370 */
|
|
|
1371 static void
|
|
|
1372 check_modifiable_specifier (Lisp_Object spec)
|
|
|
1373 {
|
|
|
1374 if (NILP (Vunlock_ghost_specifiers)
|
|
|
1375 && GHOST_SPECIFIER_P (XSPECIFIER (spec)))
|
|
442
|
1376 signal_type_error (Qspecifier_change_error,
|
|
|
1377 "Attempt to modify read-only specifier",
|
|
428
|
1378 list1 (spec));
|
|
|
1379 }
|
|
|
1380
|
|
|
1381 /* Helper function which unwind protects the value of
|
|
|
1382 Vunlock_ghost_specifiers, then sets it to non-nil value */
|
|
|
1383 static Lisp_Object
|
|
|
1384 restore_unlock_value (Lisp_Object val)
|
|
|
1385 {
|
|
|
1386 Vunlock_ghost_specifiers = val;
|
|
|
1387 return val;
|
|
|
1388 }
|
|
|
1389
|
|
|
1390 int
|
|
|
1391 unlock_ghost_specifiers_protected (void)
|
|
|
1392 {
|
|
|
1393 int depth = specpdl_depth ();
|
|
|
1394 record_unwind_protect (restore_unlock_value,
|
|
|
1395 Vunlock_ghost_specifiers);
|
|
|
1396 Vunlock_ghost_specifiers = Qt;
|
|
|
1397 return depth;
|
|
|
1398 }
|
|
|
1399
|
|
|
1400 /* This gets hit so much that the function call overhead had a
|
|
|
1401 measurable impact (according to Quantify). #### We should figure
|
|
|
1402 out the frequency with which this is called with the various types
|
|
|
1403 and reorder the check accordingly. */
|
|
|
1404 #define SPECIFIER_GET_SPEC_LIST(specifier, type) \
|
|
|
1405 (type == LOCALE_GLOBAL ? &(XSPECIFIER (specifier)->global_specs) : \
|
|
|
1406 type == LOCALE_DEVICE ? &(XSPECIFIER (specifier)->device_specs) : \
|
|
|
1407 type == LOCALE_FRAME ? &(XSPECIFIER (specifier)->frame_specs) : \
|
|
|
1408 type == LOCALE_WINDOW ? &(XWEAK_LIST_LIST \
|
|
|
1409 (XSPECIFIER (specifier)->window_specs)) : \
|
|
|
1410 type == LOCALE_BUFFER ? &(XSPECIFIER (specifier)->buffer_specs) : \
|
|
|
1411 0)
|
|
|
1412
|
|
|
1413 static Lisp_Object *
|
|
|
1414 specifier_get_inst_list (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1415 enum spec_locale_type type)
|
|
|
1416 {
|
|
|
1417 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1418 Lisp_Object specification;
|
|
|
1419
|
|
|
1420 if (type == LOCALE_GLOBAL)
|
|
|
1421 return spec_list;
|
|
|
1422 /* Calling assq_no_quit when it is just going to return nil anyhow
|
|
|
1423 is extremely expensive. So sayeth Quantify. */
|
|
|
1424 if (!CONSP (*spec_list))
|
|
|
1425 return 0;
|
|
|
1426 specification = assq_no_quit (locale, *spec_list);
|
|
|
1427 if (NILP (specification))
|
|
|
1428 return 0;
|
|
|
1429 return &XCDR (specification);
|
|
|
1430 }
|
|
|
1431
|
|
|
1432 /* For the given INST_LIST, return a new INST_LIST containing all elements
|
|
|
1433 where TAG-SET matches the element's tag set. EXACT_P indicates whether
|
|
|
1434 the match must be exact (as opposed to a subset). SHORT_P indicates
|
|
|
1435 that the short form (for `specifier-specs') should be returned if
|
|
|
1436 possible. If COPY_TREE_P, `copy-tree' is used to ensure that no
|
|
|
1437 elements of the new list are shared with the initial list.
|
|
|
1438 */
|
|
|
1439
|
|
|
1440 static Lisp_Object
|
|
|
1441 specifier_process_inst_list (Lisp_Object inst_list,
|
|
|
1442 Lisp_Object tag_set, int exact_p,
|
|
|
1443 int short_p, int copy_tree_p)
|
|
|
1444 {
|
|
|
1445 Lisp_Object retval = Qnil;
|
|
|
1446 Lisp_Object rest;
|
|
|
1447 struct gcpro gcpro1;
|
|
|
1448
|
|
|
1449 GCPRO1 (retval);
|
|
|
1450 LIST_LOOP (rest, inst_list)
|
|
|
1451 {
|
|
|
1452 Lisp_Object tagged_inst = XCAR (rest);
|
|
|
1453 Lisp_Object tagged_inst_tag = XCAR (tagged_inst);
|
|
|
1454 if (tag_sets_match_p (tag_set, tagged_inst_tag, exact_p))
|
|
|
1455 {
|
|
|
1456 if (short_p && NILP (tagged_inst_tag))
|
|
|
1457 retval = Fcons (copy_tree_p ?
|
|
|
1458 Fcopy_tree (XCDR (tagged_inst), Qt) :
|
|
|
1459 XCDR (tagged_inst),
|
|
|
1460 retval);
|
|
|
1461 else
|
|
|
1462 retval = Fcons (copy_tree_p ? Fcopy_tree (tagged_inst, Qt) :
|
|
|
1463 tagged_inst, retval);
|
|
|
1464 }
|
|
|
1465 }
|
|
|
1466 retval = Fnreverse (retval);
|
|
|
1467 UNGCPRO;
|
|
|
1468 /* If there is a single instantiator and the short form is
|
|
|
1469 requested, return just the instantiator (rather than a one-element
|
|
|
1470 list of it) unless it is nil (so that it can be distinguished from
|
|
|
1471 no instantiators at all). */
|
|
|
1472 if (short_p && CONSP (retval) && !NILP (XCAR (retval)) &&
|
|
|
1473 NILP (XCDR (retval)))
|
|
|
1474 return XCAR (retval);
|
|
|
1475 else
|
|
|
1476 return retval;
|
|
|
1477 }
|
|
|
1478
|
|
|
1479 static Lisp_Object
|
|
|
1480 specifier_get_external_inst_list (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1481 enum spec_locale_type type,
|
|
|
1482 Lisp_Object tag_set, int exact_p,
|
|
|
1483 int short_p, int copy_tree_p)
|
|
|
1484 {
|
|
|
1485 Lisp_Object *inst_list = specifier_get_inst_list (specifier, locale,
|
|
|
1486 type);
|
|
|
1487 if (!inst_list || NILP (*inst_list))
|
|
|
1488 {
|
|
|
1489 /* nil for *inst_list should only occur in 'global */
|
|
|
1490 assert (!inst_list || EQ (locale, Qglobal));
|
|
|
1491 return Qnil;
|
|
|
1492 }
|
|
|
1493
|
|
|
1494 return specifier_process_inst_list (*inst_list, tag_set, exact_p,
|
|
|
1495 short_p, copy_tree_p);
|
|
|
1496 }
|
|
|
1497
|
|
|
1498 static Lisp_Object
|
|
|
1499 specifier_get_external_spec_list (Lisp_Object specifier,
|
|
|
1500 enum spec_locale_type type,
|
|
|
1501 Lisp_Object tag_set, int exact_p)
|
|
|
1502 {
|
|
|
1503 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1504 Lisp_Object retval = Qnil;
|
|
|
1505 Lisp_Object rest;
|
|
|
1506 struct gcpro gcpro1;
|
|
|
1507
|
|
|
1508 assert (type != LOCALE_GLOBAL);
|
|
|
1509 /* We're about to let stuff go external; make sure there aren't
|
|
|
1510 any dead objects */
|
|
|
1511 *spec_list = cleanup_assoc_list (*spec_list);
|
|
|
1512
|
|
|
1513 GCPRO1 (retval);
|
|
|
1514 LIST_LOOP (rest, *spec_list)
|
|
|
1515 {
|
|
|
1516 Lisp_Object spec = XCAR (rest);
|
|
|
1517 Lisp_Object inst_list =
|
|
|
1518 specifier_process_inst_list (XCDR (spec), tag_set, exact_p, 0, 1);
|
|
|
1519 if (!NILP (inst_list))
|
|
|
1520 retval = Fcons (Fcons (XCAR (spec), inst_list), retval);
|
|
|
1521 }
|
|
|
1522 RETURN_UNGCPRO (Fnreverse (retval));
|
|
|
1523 }
|
|
|
1524
|
|
|
1525 static Lisp_Object *
|
|
|
1526 specifier_new_spec (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1527 enum spec_locale_type type)
|
|
|
1528 {
|
|
|
1529 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1530 Lisp_Object new_spec = Fcons (locale, Qnil);
|
|
|
1531 assert (type != LOCALE_GLOBAL);
|
|
|
1532 *spec_list = Fcons (new_spec, *spec_list);
|
|
|
1533 return &XCDR (new_spec);
|
|
|
1534 }
|
|
|
1535
|
|
|
1536 /* For the given INST_LIST, return a new list comprised of elements
|
|
|
1537 where TAG_SET does not match the element's tag set. This operation
|
|
|
1538 is destructive. */
|
|
|
1539
|
|
|
1540 static Lisp_Object
|
|
|
1541 specifier_process_remove_inst_list (Lisp_Object inst_list,
|
|
|
1542 Lisp_Object tag_set, int exact_p,
|
|
|
1543 int *was_removed)
|
|
|
1544 {
|
|
|
1545 Lisp_Object prev = Qnil, rest;
|
|
|
1546
|
|
|
1547 *was_removed = 0;
|
|
|
1548
|
|
|
1549 LIST_LOOP (rest, inst_list)
|
|
|
1550 {
|
|
|
1551 if (tag_sets_match_p (tag_set, XCAR (XCAR (rest)), exact_p))
|
|
|
1552 {
|
|
|
1553 /* time to remove. */
|
|
|
1554 *was_removed = 1;
|
|
|
1555 if (NILP (prev))
|
|
|
1556 inst_list = XCDR (rest);
|
|
|
1557 else
|
|
|
1558 XCDR (prev) = XCDR (rest);
|
|
|
1559 }
|
|
|
1560 else
|
|
|
1561 prev = rest;
|
|
|
1562 }
|
|
|
1563
|
|
|
1564 return inst_list;
|
|
|
1565 }
|
|
|
1566
|
|
|
1567 static void
|
|
|
1568 specifier_remove_spec (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1569 enum spec_locale_type type,
|
|
|
1570 Lisp_Object tag_set, int exact_p)
|
|
|
1571 {
|
|
|
1572 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1573 Lisp_Object assoc;
|
|
|
1574 int was_removed;
|
|
|
1575
|
|
|
1576 if (type == LOCALE_GLOBAL)
|
|
|
1577 *spec_list = specifier_process_remove_inst_list (*spec_list, tag_set,
|
|
|
1578 exact_p, &was_removed);
|
|
|
1579 else
|
|
|
1580 {
|
|
|
1581 assoc = assq_no_quit (locale, *spec_list);
|
|
|
1582 if (NILP (assoc))
|
|
|
1583 /* this locale is not found. */
|
|
|
1584 return;
|
|
|
1585 XCDR (assoc) = specifier_process_remove_inst_list (XCDR (assoc),
|
|
|
1586 tag_set, exact_p,
|
|
|
1587 &was_removed);
|
|
|
1588 if (NILP (XCDR (assoc)))
|
|
|
1589 /* no inst-pairs left; remove this locale entirely. */
|
|
|
1590 *spec_list = remassq_no_quit (locale, *spec_list);
|
|
|
1591 }
|
|
|
1592
|
|
|
1593 if (was_removed)
|
|
|
1594 MAYBE_SPECMETH (XSPECIFIER (specifier), after_change,
|
|
|
1595 (bodily_specifier (specifier), locale));
|
|
|
1596 }
|
|
|
1597
|
|
|
1598 static void
|
|
|
1599 specifier_remove_locale_type (Lisp_Object specifier,
|
|
|
1600 enum spec_locale_type type,
|
|
|
1601 Lisp_Object tag_set, int exact_p)
|
|
|
1602 {
|
|
|
1603 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1604 Lisp_Object prev = Qnil, rest;
|
|
|
1605
|
|
|
1606 assert (type != LOCALE_GLOBAL);
|
|
|
1607 LIST_LOOP (rest, *spec_list)
|
|
|
1608 {
|
|
|
1609 int was_removed;
|
|
|
1610 int remove_spec = 0;
|
|
|
1611 Lisp_Object spec = XCAR (rest);
|
|
|
1612
|
|
|
1613 /* There may be dead objects floating around */
|
|
|
1614 /* remember, dead windows can become alive again. */
|
|
|
1615 if (!WINDOWP (XCAR (spec)) && object_dead_p (XCAR (spec)))
|
|
|
1616 {
|
|
|
1617 remove_spec = 1;
|
|
|
1618 was_removed = 0;
|
|
|
1619 }
|
|
|
1620 else
|
|
|
1621 {
|
|
|
1622 XCDR (spec) = specifier_process_remove_inst_list (XCDR (spec),
|
|
|
1623 tag_set, exact_p,
|
|
|
1624 &was_removed);
|
|
|
1625 if (NILP (XCDR (spec)))
|
|
|
1626 remove_spec = 1;
|
|
|
1627 }
|
|
|
1628
|
|
|
1629 if (remove_spec)
|
|
|
1630 {
|
|
|
1631 if (NILP (prev))
|
|
|
1632 *spec_list = XCDR (rest);
|
|
|
1633 else
|
|
|
1634 XCDR (prev) = XCDR (rest);
|
|
|
1635 }
|
|
|
1636 else
|
|
|
1637 prev = rest;
|
|
|
1638
|
|
|
1639 if (was_removed)
|
|
|
1640 MAYBE_SPECMETH (XSPECIFIER (specifier), after_change,
|
|
|
1641 (bodily_specifier (specifier), XCAR (spec)));
|
|
|
1642 }
|
|
|
1643 }
|
|
|
1644
|
|
|
1645 /* NEW_LIST is going to be added to INST_LIST, with add method ADD_METH.
|
|
|
1646 Frob INST_LIST according to ADD_METH. No need to call an after-change
|
|
|
1647 function; the calling function will do this. Return either SPEC_PREPEND
|
|
|
1648 or SPEC_APPEND, indicating whether to prepend or append the NEW_LIST. */
|
|
|
1649
|
|
|
1650 static enum spec_add_meth
|
|
|
1651 handle_multiple_add_insts (Lisp_Object *inst_list,
|
|
|
1652 Lisp_Object new_list,
|
|
|
1653 enum spec_add_meth add_meth)
|
|
|
1654 {
|
|
|
1655 switch (add_meth)
|
|
|
1656 {
|
|
|
1657 case SPEC_REMOVE_TAG_SET_APPEND:
|
|
|
1658 add_meth = SPEC_APPEND;
|
|
|
1659 goto remove_tag_set;
|
|
|
1660 case SPEC_REMOVE_TAG_SET_PREPEND:
|
|
|
1661 add_meth = SPEC_PREPEND;
|
|
|
1662 remove_tag_set:
|
|
|
1663 {
|
|
|
1664 Lisp_Object rest;
|
|
|
1665
|
|
|
1666 LIST_LOOP (rest, new_list)
|
|
|
1667 {
|
|
|
1668 Lisp_Object canontag = canonicalize_tag_set (XCAR (XCAR (rest)));
|
|
|
1669 struct gcpro gcpro1;
|
|
|
1670
|
|
|
1671 GCPRO1 (canontag);
|
|
|
1672 /* pull out all elements from the existing list with the
|
|
|
1673 same tag as any tags in NEW_LIST. */
|
|
|
1674 *inst_list = remassoc_no_quit (canontag, *inst_list);
|
|
|
1675 UNGCPRO;
|
|
|
1676 }
|
|
|
1677 }
|
|
|
1678 return add_meth;
|
|
|
1679 case SPEC_REMOVE_LOCALE:
|
|
|
1680 *inst_list = Qnil;
|
|
|
1681 return SPEC_PREPEND;
|
|
|
1682 case SPEC_APPEND:
|
|
|
1683 return add_meth;
|
|
|
1684 default:
|
|
|
1685 return SPEC_PREPEND;
|
|
|
1686 }
|
|
|
1687 }
|
|
|
1688
|
|
|
1689 /* Given a LOCALE and INST_LIST that is going to be added to SPECIFIER,
|
|
|
1690 copy, canonicalize, and call the going_to_add methods as necessary
|
|
|
1691 to produce a new list that is the one that really will be added
|
|
|
1692 to the specifier. */
|
|
|
1693
|
|
|
1694 static Lisp_Object
|
|
|
1695 build_up_processed_list (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1696 Lisp_Object inst_list)
|
|
|
1697 {
|
|
|
1698 /* The return value of this function must be GCPRO'd. */
|
|
|
1699 Lisp_Object rest, list_to_build_up = Qnil;
|
|
440
|
1700 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
428
|
1701 struct gcpro gcpro1;
|
|
|
1702
|
|
|
1703 GCPRO1 (list_to_build_up);
|
|
|
1704 LIST_LOOP (rest, inst_list)
|
|
|
1705 {
|
|
|
1706 Lisp_Object tag_set = XCAR (XCAR (rest));
|
|
|
1707 Lisp_Object sub_inst_list = Qnil;
|
|
434
|
1708 Lisp_Object instantiator;
|
|
428
|
1709 struct gcpro ngcpro1, ngcpro2;
|
|
|
1710
|
|
434
|
1711 if (HAS_SPECMETH_P (sp, copy_instantiator))
|
|
|
1712 instantiator = SPECMETH (sp, copy_instantiator,
|
|
|
1713 (XCDR (XCAR (rest))));
|
|
|
1714 else
|
|
|
1715 instantiator = Fcopy_tree (XCDR (XCAR (rest)), Qt);
|
|
|
1716
|
|
428
|
1717 NGCPRO2 (instantiator, sub_inst_list);
|
|
|
1718 /* call the will-add method; it may GC */
|
|
|
1719 sub_inst_list = HAS_SPECMETH_P (sp, going_to_add) ?
|
|
|
1720 SPECMETH (sp, going_to_add,
|
|
|
1721 (bodily_specifier (specifier), locale,
|
|
|
1722 tag_set, instantiator)) :
|
|
|
1723 Qt;
|
|
|
1724 if (EQ (sub_inst_list, Qt))
|
|
|
1725 /* no change here. */
|
|
|
1726 sub_inst_list = list1 (Fcons (canonicalize_tag_set (tag_set),
|
|
|
1727 instantiator));
|
|
|
1728 else
|
|
|
1729 {
|
|
|
1730 /* now canonicalize all the tag sets in the new objects */
|
|
|
1731 Lisp_Object rest2;
|
|
|
1732 LIST_LOOP (rest2, sub_inst_list)
|
|
|
1733 XCAR (XCAR (rest2)) = canonicalize_tag_set (XCAR (XCAR (rest2)));
|
|
|
1734 }
|
|
|
1735
|
|
|
1736 list_to_build_up = nconc2 (sub_inst_list, list_to_build_up);
|
|
|
1737 NUNGCPRO;
|
|
|
1738 }
|
|
|
1739
|
|
|
1740 RETURN_UNGCPRO (Fnreverse (list_to_build_up));
|
|
|
1741 }
|
|
|
1742
|
|
|
1743 /* Add a specification (locale and instantiator list) to a specifier.
|
|
|
1744 ADD_METH specifies what to do with existing specifications in the
|
|
|
1745 specifier, and is an enum that corresponds to the values in
|
|
|
1746 `add-spec-to-specifier'. The calling routine is responsible for
|
|
|
1747 validating LOCALE and INST-LIST, but the tag-sets in INST-LIST
|
|
|
1748 do not need to be canonicalized. */
|
|
|
1749
|
|
|
1750 /* #### I really need to rethink the after-change
|
|
|
1751 functions to make them easier to use and more efficient. */
|
|
|
1752
|
|
|
1753 static void
|
|
|
1754 specifier_add_spec (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1755 Lisp_Object inst_list, enum spec_add_meth add_meth)
|
|
|
1756 {
|
|
440
|
1757 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
428
|
1758 enum spec_locale_type type = locale_type_from_locale (locale);
|
|
|
1759 Lisp_Object *orig_inst_list, tem;
|
|
|
1760 Lisp_Object list_to_build_up = Qnil;
|
|
|
1761 struct gcpro gcpro1;
|
|
|
1762
|
|
|
1763 GCPRO1 (list_to_build_up);
|
|
|
1764 list_to_build_up = build_up_processed_list (specifier, locale, inst_list);
|
|
|
1765 /* Now handle REMOVE_LOCALE_TYPE and REMOVE_ALL. These are the
|
|
|
1766 add-meth types that affect locales other than this one. */
|
|
|
1767 if (add_meth == SPEC_REMOVE_LOCALE_TYPE)
|
|
|
1768 specifier_remove_locale_type (specifier, type, Qnil, 0);
|
|
|
1769 else if (add_meth == SPEC_REMOVE_ALL)
|
|
|
1770 {
|
|
|
1771 specifier_remove_locale_type (specifier, LOCALE_BUFFER, Qnil, 0);
|
|
|
1772 specifier_remove_locale_type (specifier, LOCALE_WINDOW, Qnil, 0);
|
|
|
1773 specifier_remove_locale_type (specifier, LOCALE_FRAME, Qnil, 0);
|
|
|
1774 specifier_remove_locale_type (specifier, LOCALE_DEVICE, Qnil, 0);
|
|
|
1775 specifier_remove_spec (specifier, Qglobal, LOCALE_GLOBAL, Qnil, 0);
|
|
|
1776 }
|
|
|
1777
|
|
|
1778 orig_inst_list = specifier_get_inst_list (specifier, locale, type);
|
|
|
1779 if (!orig_inst_list)
|
|
|
1780 orig_inst_list = specifier_new_spec (specifier, locale, type);
|
|
|
1781 add_meth = handle_multiple_add_insts (orig_inst_list, list_to_build_up,
|
|
|
1782 add_meth);
|
|
|
1783
|
|
|
1784 if (add_meth == SPEC_PREPEND)
|
|
|
1785 tem = nconc2 (list_to_build_up, *orig_inst_list);
|
|
|
1786 else if (add_meth == SPEC_APPEND)
|
|
|
1787 tem = nconc2 (*orig_inst_list, list_to_build_up);
|
|
|
1788 else
|
|
442
|
1789 {
|
|
|
1790 abort ();
|
|
|
1791 tem = Qnil;
|
|
|
1792 }
|
|
428
|
1793
|
|
|
1794 *orig_inst_list = tem;
|
|
|
1795
|
|
|
1796 UNGCPRO;
|
|
|
1797
|
|
|
1798 /* call the after-change method */
|
|
|
1799 MAYBE_SPECMETH (sp, after_change,
|
|
|
1800 (bodily_specifier (specifier), locale));
|
|
|
1801 }
|
|
|
1802
|
|
|
1803 static void
|
|
|
1804 specifier_copy_spec (Lisp_Object specifier, Lisp_Object dest,
|
|
|
1805 Lisp_Object locale, enum spec_locale_type type,
|
|
|
1806 Lisp_Object tag_set, int exact_p,
|
|
|
1807 enum spec_add_meth add_meth)
|
|
|
1808 {
|
|
|
1809 Lisp_Object inst_list =
|
|
|
1810 specifier_get_external_inst_list (specifier, locale, type, tag_set,
|
|
|
1811 exact_p, 0, 0);
|
|
|
1812 specifier_add_spec (dest, locale, inst_list, add_meth);
|
|
|
1813 }
|
|
|
1814
|
|
|
1815 static void
|
|
|
1816 specifier_copy_locale_type (Lisp_Object specifier, Lisp_Object dest,
|
|
|
1817 enum spec_locale_type type,
|
|
|
1818 Lisp_Object tag_set, int exact_p,
|
|
|
1819 enum spec_add_meth add_meth)
|
|
|
1820 {
|
|
|
1821 Lisp_Object *src_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1822 Lisp_Object rest;
|
|
|
1823
|
|
|
1824 /* This algorithm is O(n^2) in running time.
|
|
|
1825 It's certainly possible to implement an O(n log n) algorithm,
|
|
|
1826 but I doubt there's any need to. */
|
|
|
1827
|
|
|
1828 LIST_LOOP (rest, *src_list)
|
|
|
1829 {
|
|
|
1830 Lisp_Object spec = XCAR (rest);
|
|
|
1831 /* There may be dead objects floating around */
|
|
|
1832 /* remember, dead windows can become alive again. */
|
|
|
1833 if (WINDOWP (XCAR (spec)) || !object_dead_p (XCAR (spec)))
|
|
|
1834 specifier_add_spec
|
|
|
1835 (dest, XCAR (spec),
|
|
|
1836 specifier_process_inst_list (XCDR (spec), tag_set, exact_p, 0, 0),
|
|
|
1837 add_meth);
|
|
|
1838 }
|
|
|
1839 }
|
|
|
1840
|
|
|
1841 /* map MAPFUN over the locales in SPECIFIER that are given in LOCALE.
|
|
|
1842 CLOSURE is passed unchanged to MAPFUN. LOCALE can be one of
|
|
|
1843
|
|
|
1844 -- nil (same as 'all)
|
|
|
1845 -- a single locale, locale type, or 'all
|
|
|
1846 -- a list of locales, locale types, and/or 'all
|
|
|
1847
|
|
|
1848 MAPFUN is called for each locale and locale type given; for 'all,
|
|
|
1849 it is called for the locale 'global and for the four possible
|
|
|
1850 locale types. In each invocation, either LOCALE will be a locale
|
|
|
1851 and LOCALE_TYPE will be the locale type of this locale,
|
|
|
1852 or LOCALE will be nil and LOCALE_TYPE will be a locale type.
|
|
|
1853 If MAPFUN ever returns non-zero, the mapping is halted and the
|
|
|
1854 value returned is returned from map_specifier(). Otherwise, the
|
|
|
1855 mapping proceeds to the end and map_specifier() returns 0.
|
|
|
1856 */
|
|
|
1857
|
|
|
1858 static int
|
|
|
1859 map_specifier (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1860 int (*mapfun) (Lisp_Object specifier,
|
|
|
1861 Lisp_Object locale,
|
|
|
1862 enum spec_locale_type locale_type,
|
|
|
1863 Lisp_Object tag_set,
|
|
|
1864 int exact_p,
|
|
|
1865 void *closure),
|
|
|
1866 Lisp_Object tag_set, Lisp_Object exact_p,
|
|
|
1867 void *closure)
|
|
|
1868 {
|
|
|
1869 int retval = 0;
|
|
|
1870 Lisp_Object rest;
|
|
|
1871 struct gcpro gcpro1, gcpro2;
|
|
|
1872
|
|
|
1873 GCPRO2 (tag_set, locale);
|
|
|
1874 locale = decode_locale_list (locale);
|
|
|
1875 tag_set = decode_specifier_tag_set (tag_set);
|
|
|
1876 tag_set = canonicalize_tag_set (tag_set);
|
|
|
1877
|
|
|
1878 LIST_LOOP (rest, locale)
|
|
|
1879 {
|
|
|
1880 Lisp_Object theloc = XCAR (rest);
|
|
|
1881 if (!NILP (Fvalid_specifier_locale_p (theloc)))
|
|
|
1882 {
|
|
|
1883 retval = (*mapfun) (specifier, theloc,
|
|
|
1884 locale_type_from_locale (theloc),
|
|
|
1885 tag_set, !NILP (exact_p), closure);
|
|
|
1886 if (retval)
|
|
|
1887 break;
|
|
|
1888 }
|
|
|
1889 else if (!NILP (Fvalid_specifier_locale_type_p (theloc)))
|
|
|
1890 {
|
|
|
1891 retval = (*mapfun) (specifier, Qnil,
|
|
|
1892 decode_locale_type (theloc), tag_set,
|
|
|
1893 !NILP (exact_p), closure);
|
|
|
1894 if (retval)
|
|
|
1895 break;
|
|
|
1896 }
|
|
|
1897 else
|
|
|
1898 {
|
|
|
1899 assert (EQ (theloc, Qall));
|
|
|
1900 retval = (*mapfun) (specifier, Qnil, LOCALE_BUFFER, tag_set,
|
|
|
1901 !NILP (exact_p), closure);
|
|
|
1902 if (retval)
|
|
|
1903 break;
|
|
|
1904 retval = (*mapfun) (specifier, Qnil, LOCALE_WINDOW, tag_set,
|
|
|
1905 !NILP (exact_p), closure);
|
|
|
1906 if (retval)
|
|
|
1907 break;
|
|
|
1908 retval = (*mapfun) (specifier, Qnil, LOCALE_FRAME, tag_set,
|
|
|
1909 !NILP (exact_p), closure);
|
|
|
1910 if (retval)
|
|
|
1911 break;
|
|
|
1912 retval = (*mapfun) (specifier, Qnil, LOCALE_DEVICE, tag_set,
|
|
|
1913 !NILP (exact_p), closure);
|
|
|
1914 if (retval)
|
|
|
1915 break;
|
|
|
1916 retval = (*mapfun) (specifier, Qglobal, LOCALE_GLOBAL, tag_set,
|
|
|
1917 !NILP (exact_p), closure);
|
|
|
1918 if (retval)
|
|
|
1919 break;
|
|
|
1920 }
|
|
|
1921 }
|
|
|
1922
|
|
|
1923 UNGCPRO;
|
|
|
1924 return retval;
|
|
|
1925 }
|
|
|
1926
|
|
|
1927 DEFUN ("add-spec-to-specifier", Fadd_spec_to_specifier, 2, 5, 0, /*
|
|
|
1928 Add a specification to SPECIFIER.
|
|
|
1929 The specification maps from LOCALE (which should be a window, buffer,
|
|
|
1930 frame, device, or 'global, and defaults to 'global) to INSTANTIATOR,
|
|
|
1931 whose allowed values depend on the type of the specifier. Optional
|
|
|
1932 argument TAG-SET limits the instantiator to apply only to the specified
|
|
|
1933 tag set, which should be a list of tags all of which must match the
|
|
|
1934 device being instantiated over (tags are a device type, a device class,
|
|
|
1935 or tags defined with `define-specifier-tag'). Specifying a single
|
|
|
1936 symbol for TAG-SET is equivalent to specifying a one-element list
|
|
|
1937 containing that symbol. Optional argument HOW-TO-ADD specifies what to
|
|
|
1938 do if there are already specifications in the specifier.
|
|
|
1939 It should be one of
|
|
|
1940
|
|
|
1941 'prepend Put at the beginning of the current list of
|
|
|
1942 instantiators for LOCALE.
|
|
|
1943 'append Add to the end of the current list of
|
|
|
1944 instantiators for LOCALE.
|
|
|
1945 'remove-tag-set-prepend (this is the default)
|
|
|
1946 Remove any existing instantiators whose tag set is
|
|
|
1947 the same as TAG-SET; then put the new instantiator
|
|
|
1948 at the beginning of the current list. ("Same tag
|
|
|
1949 set" means that they contain the same elements.
|
|
|
1950 The order may be different.)
|
|
|
1951 'remove-tag-set-append
|
|
|
1952 Remove any existing instantiators whose tag set is
|
|
|
1953 the same as TAG-SET; then put the new instantiator
|
|
|
1954 at the end of the current list.
|
|
|
1955 'remove-locale Remove all previous instantiators for this locale
|
|
|
1956 before adding the new spec.
|
|
|
1957 'remove-locale-type Remove all specifications for all locales of the
|
|
|
1958 same type as LOCALE (this includes LOCALE itself)
|
|
|
1959 before adding the new spec.
|
|
|
1960 'remove-all Remove all specifications from the specifier
|
|
|
1961 before adding the new spec.
|
|
|
1962
|
|
|
1963 You can retrieve the specifications for a particular locale or locale type
|
|
|
1964 with the function `specifier-spec-list' or `specifier-specs'.
|
|
|
1965 */
|
|
|
1966 (specifier, instantiator, locale, tag_set, how_to_add))
|
|
|
1967 {
|
|
|
1968 enum spec_add_meth add_meth;
|
|
|
1969 Lisp_Object inst_list;
|
|
|
1970 struct gcpro gcpro1;
|
|
|
1971
|
|
|
1972 CHECK_SPECIFIER (specifier);
|
|
|
1973 check_modifiable_specifier (specifier);
|
|
|
1974
|
|
|
1975 locale = decode_locale (locale);
|
|
|
1976 check_valid_instantiator (instantiator,
|
|
|
1977 decode_specifier_type
|
|
|
1978 (Fspecifier_type (specifier), ERROR_ME),
|
|
|
1979 ERROR_ME);
|
|
|
1980 /* tag_set might be newly-created material, but it's part of inst_list
|
|
|
1981 so is properly GC-protected. */
|
|
|
1982 tag_set = decode_specifier_tag_set (tag_set);
|
|
|
1983 add_meth = decode_how_to_add_specification (how_to_add);
|
|
|
1984
|
|
|
1985 inst_list = list1 (Fcons (tag_set, instantiator));
|
|
|
1986 GCPRO1 (inst_list);
|
|
|
1987 specifier_add_spec (specifier, locale, inst_list, add_meth);
|
|
|
1988 recompute_cached_specifier_everywhere (specifier);
|
|
|
1989 RETURN_UNGCPRO (Qnil);
|
|
|
1990 }
|
|
|
1991
|
|
|
1992 DEFUN ("add-spec-list-to-specifier", Fadd_spec_list_to_specifier, 2, 3, 0, /*
|
|
444
|
1993 Add SPEC-LIST (a list of specifications) to SPECIFIER.
|
|
|
1994 The format of SPEC-LIST is
|
|
428
|
1995
|
|
|
1996 ((LOCALE (TAG-SET . INSTANTIATOR) ...) ...)
|
|
|
1997
|
|
|
1998 where
|
|
|
1999 LOCALE := a window, a buffer, a frame, a device, or 'global
|
|
|
2000 TAG-SET := an unordered list of zero or more TAGS, each of which
|
|
|
2001 is a symbol
|
|
|
2002 TAG := a device class (see `valid-device-class-p'), a device type
|
|
|
2003 (see `valid-console-type-p'), or a tag defined with
|
|
|
2004 `define-specifier-tag'
|
|
|
2005 INSTANTIATOR := format determined by the type of specifier
|
|
|
2006
|
|
|
2007 The pair (TAG-SET . INSTANTIATOR) is called an `inst-pair'.
|
|
|
2008 A list of inst-pairs is called an `inst-list'.
|
|
|
2009 The pair (LOCALE . INST-LIST) is called a `specification' or `spec'.
|
|
|
2010 A spec-list, then, can be viewed as a list of specifications.
|
|
|
2011
|
|
|
2012 HOW-TO-ADD specifies how to combine the new specifications with
|
|
|
2013 the existing ones, and has the same semantics as for
|
|
|
2014 `add-spec-to-specifier'.
|
|
|
2015
|
|
|
2016 In many circumstances, the higher-level function `set-specifier' is
|
|
|
2017 more convenient and should be used instead.
|
|
|
2018 */
|
|
|
2019 (specifier, spec_list, how_to_add))
|
|
|
2020 {
|
|
|
2021 enum spec_add_meth add_meth;
|
|
|
2022 Lisp_Object rest;
|
|
|
2023
|
|
|
2024 CHECK_SPECIFIER (specifier);
|
|
|
2025 check_modifiable_specifier (specifier);
|
|
|
2026
|
|
|
2027 check_valid_spec_list (spec_list,
|
|
|
2028 decode_specifier_type
|
|
|
2029 (Fspecifier_type (specifier), ERROR_ME),
|
|
|
2030 ERROR_ME);
|
|
|
2031 add_meth = decode_how_to_add_specification (how_to_add);
|
|
|
2032
|
|
|
2033 LIST_LOOP (rest, spec_list)
|
|
|
2034 {
|
|
|
2035 /* Placating the GCC god. */
|
|
|
2036 Lisp_Object specification = XCAR (rest);
|
|
|
2037 Lisp_Object locale = XCAR (specification);
|
|
|
2038 Lisp_Object inst_list = XCDR (specification);
|
|
|
2039
|
|
|
2040 specifier_add_spec (specifier, locale, inst_list, add_meth);
|
|
|
2041 }
|
|
|
2042 recompute_cached_specifier_everywhere (specifier);
|
|
|
2043 return Qnil;
|
|
|
2044 }
|
|
|
2045
|
|
|
2046 void
|
|
|
2047 add_spec_to_ghost_specifier (Lisp_Object specifier, Lisp_Object instantiator,
|
|
|
2048 Lisp_Object locale, Lisp_Object tag_set,
|
|
|
2049 Lisp_Object how_to_add)
|
|
|
2050 {
|
|
|
2051 int depth = unlock_ghost_specifiers_protected ();
|
|
|
2052 Fadd_spec_to_specifier (XSPECIFIER(specifier)->fallback,
|
|
|
2053 instantiator, locale, tag_set, how_to_add);
|
|
|
2054 unbind_to (depth, Qnil);
|
|
|
2055 }
|
|
|
2056
|
|
|
2057 struct specifier_spec_list_closure
|
|
|
2058 {
|
|
|
2059 Lisp_Object head, tail;
|
|
|
2060 };
|
|
|
2061
|
|
|
2062 static int
|
|
|
2063 specifier_spec_list_mapfun (Lisp_Object specifier,
|
|
|
2064 Lisp_Object locale,
|
|
|
2065 enum spec_locale_type locale_type,
|
|
|
2066 Lisp_Object tag_set,
|
|
|
2067 int exact_p,
|
|
|
2068 void *closure)
|
|
|
2069 {
|
|
|
2070 struct specifier_spec_list_closure *cl =
|
|
|
2071 (struct specifier_spec_list_closure *) closure;
|
|
|
2072 Lisp_Object partial;
|
|
|
2073
|
|
|
2074 if (NILP (locale))
|
|
|
2075 partial = specifier_get_external_spec_list (specifier,
|
|
|
2076 locale_type,
|
|
|
2077 tag_set, exact_p);
|
|
|
2078 else
|
|
|
2079 {
|
|
|
2080 partial = specifier_get_external_inst_list (specifier, locale,
|
|
|
2081 locale_type, tag_set,
|
|
|
2082 exact_p, 0, 1);
|
|
|
2083 if (!NILP (partial))
|
|
|
2084 partial = list1 (Fcons (locale, partial));
|
|
|
2085 }
|
|
|
2086 if (NILP (partial))
|
|
|
2087 return 0;
|
|
|
2088
|
|
|
2089 /* tack on the new list */
|
|
|
2090 if (NILP (cl->tail))
|
|
|
2091 cl->head = cl->tail = partial;
|
|
|
2092 else
|
|
|
2093 XCDR (cl->tail) = partial;
|
|
|
2094 /* find the new tail */
|
|
|
2095 while (CONSP (XCDR (cl->tail)))
|
|
|
2096 cl->tail = XCDR (cl->tail);
|
|
|
2097 return 0;
|
|
|
2098 }
|
|
|
2099
|
|
|
2100 /* For the given SPECIFIER create and return a list of all specs
|
|
|
2101 contained within it, subject to LOCALE. If LOCALE is a locale, only
|
|
|
2102 specs in that locale will be returned. If LOCALE is a locale type,
|
|
|
2103 all specs in all locales of that type will be returned. If LOCALE is
|
|
|
2104 nil, all specs will be returned. This always copies lists and never
|
|
|
2105 returns the actual lists, because we do not want someone manipulating
|
|
|
2106 the actual objects. This may cause a slight loss of potential
|
|
|
2107 functionality but if we were to allow it then a user could manage to
|
|
|
2108 violate our assertion that the specs contained in the actual
|
|
|
2109 specifier lists are all valid. */
|
|
|
2110
|
|
|
2111 DEFUN ("specifier-spec-list", Fspecifier_spec_list, 1, 4, 0, /*
|
|
|
2112 Return the spec-list of specifications for SPECIFIER in LOCALE.
|
|
|
2113
|
|
|
2114 If LOCALE is a particular locale (a buffer, window, frame, device,
|
|
|
2115 or 'global), a spec-list consisting of the specification for that
|
|
|
2116 locale will be returned.
|
|
|
2117
|
|
|
2118 If LOCALE is a locale type (i.e. 'buffer, 'window, 'frame, or 'device),
|
|
|
2119 a spec-list of the specifications for all locales of that type will be
|
|
|
2120 returned.
|
|
|
2121
|
|
|
2122 If LOCALE is nil or 'all, a spec-list of all specifications in SPECIFIER
|
|
|
2123 will be returned.
|
|
|
2124
|
|
|
2125 LOCALE can also be a list of locales, locale types, and/or 'all; the
|
|
|
2126 result is as if `specifier-spec-list' were called on each element of the
|
|
|
2127 list and the results concatenated together.
|
|
|
2128
|
|
|
2129 Only instantiators where TAG-SET (a list of zero or more tags) is a
|
|
|
2130 subset of (or possibly equal to) the instantiator's tag set are returned.
|
|
|
2131 \(The default value of nil is a subset of all tag sets, so in this case
|
|
|
2132 no instantiators will be screened out.) If EXACT-P is non-nil, however,
|
|
|
2133 TAG-SET must be equal to an instantiator's tag set for the instantiator
|
|
|
2134 to be returned.
|
|
|
2135 */
|
|
|
2136 (specifier, locale, tag_set, exact_p))
|
|
|
2137 {
|
|
|
2138 struct specifier_spec_list_closure cl;
|
|
|
2139 struct gcpro gcpro1, gcpro2;
|
|
|
2140
|
|
|
2141 CHECK_SPECIFIER (specifier);
|
|
|
2142 cl.head = cl.tail = Qnil;
|
|
|
2143 GCPRO2 (cl.head, cl.tail);
|
|
|
2144 map_specifier (specifier, locale, specifier_spec_list_mapfun,
|
|
|
2145 tag_set, exact_p, &cl);
|
|
|
2146 UNGCPRO;
|
|
|
2147 return cl.head;
|
|
|
2148 }
|
|
|
2149
|
|
|
2150
|
|
|
2151 DEFUN ("specifier-specs", Fspecifier_specs, 1, 4, 0, /*
|
|
|
2152 Return the specification(s) for SPECIFIER in LOCALE.
|
|
|
2153
|
|
|
2154 If LOCALE is a single locale or is a list of one element containing a
|
|
|
2155 single locale, then a "short form" of the instantiators for that locale
|
|
|
2156 will be returned. Otherwise, this function is identical to
|
|
|
2157 `specifier-spec-list'.
|
|
|
2158
|
|
|
2159 The "short form" is designed for readability and not for ease of use
|
|
|
2160 in Lisp programs, and is as follows:
|
|
|
2161
|
|
|
2162 1. If there is only one instantiator, then an inst-pair (i.e. cons of
|
|
|
2163 tag and instantiator) will be returned; otherwise a list of
|
|
|
2164 inst-pairs will be returned.
|
|
|
2165 2. For each inst-pair returned, if the instantiator's tag is 'any,
|
|
|
2166 the tag will be removed and the instantiator itself will be returned
|
|
|
2167 instead of the inst-pair.
|
|
|
2168 3. If there is only one instantiator, its value is nil, and its tag is
|
|
|
2169 'any, a one-element list containing nil will be returned rather
|
|
|
2170 than just nil, to distinguish this case from there being no
|
|
|
2171 instantiators at all.
|
|
|
2172 */
|
|
|
2173 (specifier, locale, tag_set, exact_p))
|
|
|
2174 {
|
|
|
2175 if (!NILP (Fvalid_specifier_locale_p (locale)) ||
|
|
|
2176 (CONSP (locale) && !NILP (Fvalid_specifier_locale_p (XCAR (locale))) &&
|
|
|
2177 NILP (XCDR (locale))))
|
|
|
2178 {
|
|
|
2179 struct gcpro gcpro1;
|
|
|
2180
|
|
|
2181 CHECK_SPECIFIER (specifier);
|
|
|
2182 if (CONSP (locale))
|
|
|
2183 locale = XCAR (locale);
|
|
|
2184 GCPRO1 (tag_set);
|
|
|
2185 tag_set = decode_specifier_tag_set (tag_set);
|
|
|
2186 tag_set = canonicalize_tag_set (tag_set);
|
|
|
2187 RETURN_UNGCPRO
|
|
|
2188 (specifier_get_external_inst_list (specifier, locale,
|
|
|
2189 locale_type_from_locale (locale),
|
|
|
2190 tag_set, !NILP (exact_p), 1, 1));
|
|
|
2191 }
|
|
|
2192 else
|
|
|
2193 return Fspecifier_spec_list (specifier, locale, tag_set, exact_p);
|
|
|
2194 }
|
|
|
2195
|
|
|
2196 static int
|
|
|
2197 remove_specifier_mapfun (Lisp_Object specifier,
|
|
|
2198 Lisp_Object locale,
|
|
|
2199 enum spec_locale_type locale_type,
|
|
|
2200 Lisp_Object tag_set,
|
|
|
2201 int exact_p,
|
|
|
2202 void *ignored_closure)
|
|
|
2203 {
|
|
|
2204 if (NILP (locale))
|
|
|
2205 specifier_remove_locale_type (specifier, locale_type, tag_set, exact_p);
|
|
|
2206 else
|
|
|
2207 specifier_remove_spec (specifier, locale, locale_type, tag_set, exact_p);
|
|
|
2208 return 0;
|
|
|
2209 }
|
|
|
2210
|
|
|
2211 DEFUN ("remove-specifier", Fremove_specifier, 1, 4, 0, /*
|
|
|
2212 Remove specification(s) for SPECIFIER.
|
|
|
2213
|
|
|
2214 If LOCALE is a particular locale (a window, buffer, frame, device,
|
|
|
2215 or 'global), the specification for that locale will be removed.
|
|
|
2216
|
|
|
2217 If instead, LOCALE is a locale type (i.e. 'window, 'buffer, 'frame,
|
|
|
2218 or 'device), the specifications for all locales of that type will be
|
|
|
2219 removed.
|
|
|
2220
|
|
|
2221 If LOCALE is nil or 'all, all specifications will be removed.
|
|
|
2222
|
|
|
2223 LOCALE can also be a list of locales, locale types, and/or 'all; this
|
|
|
2224 is equivalent to calling `remove-specifier' for each of the elements
|
|
|
2225 in the list.
|
|
|
2226
|
|
|
2227 Only instantiators where TAG-SET (a list of zero or more tags) is a
|
|
|
2228 subset of (or possibly equal to) the instantiator's tag set are removed.
|
|
|
2229 The default value of nil is a subset of all tag sets, so in this case
|
|
|
2230 no instantiators will be screened out. If EXACT-P is non-nil, however,
|
|
|
2231 TAG-SET must be equal to an instantiator's tag set for the instantiator
|
|
|
2232 to be removed.
|
|
|
2233 */
|
|
|
2234 (specifier, locale, tag_set, exact_p))
|
|
|
2235 {
|
|
|
2236 CHECK_SPECIFIER (specifier);
|
|
|
2237 check_modifiable_specifier (specifier);
|
|
|
2238
|
|
|
2239 map_specifier (specifier, locale, remove_specifier_mapfun,
|
|
|
2240 tag_set, exact_p, 0);
|
|
|
2241 recompute_cached_specifier_everywhere (specifier);
|
|
|
2242 return Qnil;
|
|
|
2243 }
|
|
|
2244
|
|
|
2245 void
|
|
|
2246 remove_ghost_specifier (Lisp_Object specifier, Lisp_Object locale,
|
|
|
2247 Lisp_Object tag_set, Lisp_Object exact_p)
|
|
|
2248 {
|
|
|
2249 int depth = unlock_ghost_specifiers_protected ();
|
|
|
2250 Fremove_specifier (XSPECIFIER(specifier)->fallback,
|
|
|
2251 locale, tag_set, exact_p);
|
|
|
2252 unbind_to (depth, Qnil);
|
|
|
2253 }
|
|
|
2254
|
|
|
2255 struct copy_specifier_closure
|
|
|
2256 {
|
|
|
2257 Lisp_Object dest;
|
|
|
2258 enum spec_add_meth add_meth;
|
|
|
2259 int add_meth_is_nil;
|
|
|
2260 };
|
|
|
2261
|
|
|
2262 static int
|
|
|
2263 copy_specifier_mapfun (Lisp_Object specifier,
|
|
|
2264 Lisp_Object locale,
|
|
|
2265 enum spec_locale_type locale_type,
|
|
|
2266 Lisp_Object tag_set,
|
|
|
2267 int exact_p,
|
|
|
2268 void *closure)
|
|
|
2269 {
|
|
|
2270 struct copy_specifier_closure *cl =
|
|
|
2271 (struct copy_specifier_closure *) closure;
|
|
|
2272
|
|
|
2273 if (NILP (locale))
|
|
|
2274 specifier_copy_locale_type (specifier, cl->dest, locale_type,
|
|
|
2275 tag_set, exact_p,
|
|
|
2276 cl->add_meth_is_nil ?
|
|
|
2277 SPEC_REMOVE_LOCALE_TYPE :
|
|
|
2278 cl->add_meth);
|
|
|
2279 else
|
|
|
2280 specifier_copy_spec (specifier, cl->dest, locale, locale_type,
|
|
|
2281 tag_set, exact_p,
|
|
|
2282 cl->add_meth_is_nil ? SPEC_REMOVE_LOCALE :
|
|
|
2283 cl->add_meth);
|
|
|
2284 return 0;
|
|
|
2285 }
|
|
|
2286
|
|
|
2287 DEFUN ("copy-specifier", Fcopy_specifier, 1, 6, 0, /*
|
|
|
2288 Copy SPECIFIER to DEST, or create a new one if DEST is nil.
|
|
|
2289
|
|
|
2290 If DEST is nil or omitted, a new specifier will be created and the
|
|
|
2291 specifications copied into it. Otherwise, the specifications will be
|
|
|
2292 copied into the existing specifier in DEST.
|
|
|
2293
|
|
|
2294 If LOCALE is nil or 'all, all specifications will be copied. If LOCALE
|
|
|
2295 is a particular locale, the specification for that particular locale will
|
|
|
2296 be copied. If LOCALE is a locale type, the specifications for all locales
|
|
|
2297 of that type will be copied. LOCALE can also be a list of locales,
|
|
|
2298 locale types, and/or 'all; this is equivalent to calling `copy-specifier'
|
|
|
2299 for each of the elements of the list. See `specifier-spec-list' for more
|
|
|
2300 information about LOCALE.
|
|
|
2301
|
|
|
2302 Only instantiators where TAG-SET (a list of zero or more tags) is a
|
|
|
2303 subset of (or possibly equal to) the instantiator's tag set are copied.
|
|
|
2304 The default value of nil is a subset of all tag sets, so in this case
|
|
|
2305 no instantiators will be screened out. If EXACT-P is non-nil, however,
|
|
|
2306 TAG-SET must be equal to an instantiator's tag set for the instantiator
|
|
|
2307 to be copied.
|
|
|
2308
|
|
|
2309 Optional argument HOW-TO-ADD specifies what to do with existing
|
|
|
2310 specifications in DEST. If nil, then whichever locales or locale types
|
|
|
2311 are copied will first be completely erased in DEST. Otherwise, it is
|
|
|
2312 the same as in `add-spec-to-specifier'.
|
|
|
2313 */
|
|
|
2314 (specifier, dest, locale, tag_set, exact_p, how_to_add))
|
|
|
2315 {
|
|
|
2316 struct gcpro gcpro1;
|
|
|
2317 struct copy_specifier_closure cl;
|
|
|
2318
|
|
|
2319 CHECK_SPECIFIER (specifier);
|
|
|
2320 if (NILP (how_to_add))
|
|
|
2321 cl.add_meth_is_nil = 1;
|
|
|
2322 else
|
|
|
2323 cl.add_meth_is_nil = 0;
|
|
|
2324 cl.add_meth = decode_how_to_add_specification (how_to_add);
|
|
|
2325 if (NILP (dest))
|
|
|
2326 {
|
|
|
2327 /* #### What about copying the extra data? */
|
|
|
2328 dest = make_specifier (XSPECIFIER (specifier)->methods);
|
|
|
2329 }
|
|
|
2330 else
|
|
|
2331 {
|
|
|
2332 CHECK_SPECIFIER (dest);
|
|
|
2333 check_modifiable_specifier (dest);
|
|
|
2334 if (XSPECIFIER (dest)->methods != XSPECIFIER (specifier)->methods)
|
|
|
2335 error ("Specifiers not of same type");
|
|
|
2336 }
|
|
|
2337
|
|
|
2338 cl.dest = dest;
|
|
|
2339 GCPRO1 (dest);
|
|
|
2340 map_specifier (specifier, locale, copy_specifier_mapfun,
|
|
|
2341 tag_set, exact_p, &cl);
|
|
|
2342 UNGCPRO;
|
|
|
2343 recompute_cached_specifier_everywhere (dest);
|
|
|
2344 return dest;
|
|
|
2345 }
|
|
|
2346
|
|
|
2347
|
|
|
2348 /************************************************************************/
|
|
|
2349 /* Instancing */
|
|
|
2350 /************************************************************************/
|
|
|
2351
|
|
|
2352 static Lisp_Object
|
|
|
2353 call_validate_matchspec_method (Lisp_Object boxed_method,
|
|
|
2354 Lisp_Object matchspec)
|
|
|
2355 {
|
|
|
2356 ((void (*)(Lisp_Object)) get_opaque_ptr (boxed_method)) (matchspec);
|
|
|
2357 return Qt;
|
|
|
2358 }
|
|
|
2359
|
|
|
2360 static Lisp_Object
|
|
|
2361 check_valid_specifier_matchspec (Lisp_Object matchspec,
|
|
|
2362 struct specifier_methods *meths,
|
|
|
2363 Error_behavior errb)
|
|
|
2364 {
|
|
|
2365 if (meths->validate_matchspec_method)
|
|
|
2366 {
|
|
|
2367 Lisp_Object retval;
|
|
|
2368
|
|
|
2369 if (ERRB_EQ (errb, ERROR_ME))
|
|
|
2370 {
|
|
|
2371 (meths->validate_matchspec_method) (matchspec);
|
|
|
2372 retval = Qt;
|
|
|
2373 }
|
|
|
2374 else
|
|
|
2375 {
|
|
|
2376 Lisp_Object opaque =
|
|
|
2377 make_opaque_ptr ((void *) meths->validate_matchspec_method);
|
|
|
2378 struct gcpro gcpro1;
|
|
|
2379
|
|
|
2380 GCPRO1 (opaque);
|
|
|
2381 retval = call_with_suspended_errors
|
|
|
2382 ((lisp_fn_t) call_validate_matchspec_method,
|
|
|
2383 Qnil, Qspecifier, errb, 2, opaque, matchspec);
|
|
|
2384
|
|
|
2385 free_opaque_ptr (opaque);
|
|
|
2386 UNGCPRO;
|
|
|
2387 }
|
|
|
2388
|
|
|
2389 return retval;
|
|
|
2390 }
|
|
|
2391 else
|
|
|
2392 {
|
|
|
2393 maybe_signal_simple_error
|
|
|
2394 ("Matchspecs not allowed for this specifier type",
|
|
|
2395 intern (meths->name), Qspecifier, errb);
|
|
|
2396 return Qnil;
|
|
|
2397 }
|
|
|
2398 }
|
|
|
2399
|
|
442
|
2400 DEFUN ("check-valid-specifier-matchspec", Fcheck_valid_specifier_matchspec, 2,
|
|
|
2401 2, 0, /*
|
|
428
|
2402 Signal an error if MATCHSPEC is invalid for SPECIFIER-TYPE.
|
|
|
2403 See `specifier-matching-instance' for a description of matchspecs.
|
|
|
2404 */
|
|
|
2405 (matchspec, specifier_type))
|
|
|
2406 {
|
|
|
2407 struct specifier_methods *meths = decode_specifier_type (specifier_type,
|
|
|
2408 ERROR_ME);
|
|
|
2409
|
|
|
2410 return check_valid_specifier_matchspec (matchspec, meths, ERROR_ME);
|
|
|
2411 }
|
|
|
2412
|
|
|
2413 DEFUN ("valid-specifier-matchspec-p", Fvalid_specifier_matchspec_p, 2, 2, 0, /*
|
|
|
2414 Return non-nil if MATCHSPEC is valid for SPECIFIER-TYPE.
|
|
|
2415 See `specifier-matching-instance' for a description of matchspecs.
|
|
|
2416 */
|
|
|
2417 (matchspec, specifier_type))
|
|
|
2418 {
|
|
|
2419 struct specifier_methods *meths = decode_specifier_type (specifier_type,
|
|
|
2420 ERROR_ME);
|
|
|
2421
|
|
|
2422 return check_valid_specifier_matchspec (matchspec, meths, ERROR_ME_NOT);
|
|
|
2423 }
|
|
|
2424
|
|
|
2425 /* This function is purposely not callable from Lisp. If a Lisp
|
|
|
2426 caller wants to set a fallback, they should just set the
|
|
|
2427 global value. */
|
|
|
2428
|
|
|
2429 void
|
|
|
2430 set_specifier_fallback (Lisp_Object specifier, Lisp_Object fallback)
|
|
|
2431 {
|
|
440
|
2432 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
428
|
2433 assert (SPECIFIERP (fallback) ||
|
|
|
2434 !NILP (Fvalid_inst_list_p (fallback, Fspecifier_type (specifier))));
|
|
|
2435 if (SPECIFIERP (fallback))
|
|
|
2436 assert (EQ (Fspecifier_type (specifier), Fspecifier_type (fallback)));
|
|
|
2437 if (BODILY_SPECIFIER_P (sp))
|
|
|
2438 GHOST_SPECIFIER(sp)->fallback = fallback;
|
|
|
2439 else
|
|
|
2440 sp->fallback = fallback;
|
|
|
2441 /* call the after-change method */
|
|
|
2442 MAYBE_SPECMETH (sp, after_change,
|
|
|
2443 (bodily_specifier (specifier), Qfallback));
|
|
|
2444 recompute_cached_specifier_everywhere (specifier);
|
|
|
2445 }
|
|
|
2446
|
|
|
2447 DEFUN ("specifier-fallback", Fspecifier_fallback, 1, 1, 0, /*
|
|
|
2448 Return the fallback value for SPECIFIER.
|
|
|
2449 Fallback values are provided by the C code for certain built-in
|
|
|
2450 specifiers to make sure that instancing won't fail even if all
|
|
|
2451 specs are removed from the specifier, or to implement simple
|
|
|
2452 inheritance behavior (e.g. this method is used to ensure that
|
|
|
2453 faces other than 'default inherit their attributes from 'default).
|
|
|
2454 By design, you cannot change the fallback value, and specifiers
|
|
|
2455 created with `make-specifier' will never have a fallback (although
|
|
|
2456 a similar, Lisp-accessible capability may be provided in the future
|
|
|
2457 to allow for inheritance).
|
|
|
2458
|
|
|
2459 The fallback value will be an inst-list that is instanced like
|
|
|
2460 any other inst-list, a specifier of the same type as SPECIFIER
|
|
|
2461 \(results in inheritance), or nil for no fallback.
|
|
|
2462
|
|
|
2463 When you instance a specifier, you can explicitly request that the
|
|
|
2464 fallback not be consulted. (The C code does this, for example, when
|
|
|
2465 merging faces.) See `specifier-instance'.
|
|
|
2466 */
|
|
|
2467 (specifier))
|
|
|
2468 {
|
|
|
2469 CHECK_SPECIFIER (specifier);
|
|
|
2470 return Fcopy_tree (XSPECIFIER (specifier)->fallback, Qt);
|
|
|
2471 }
|
|
|
2472
|
|
|
2473 static Lisp_Object
|
|
|
2474 specifier_instance_from_inst_list (Lisp_Object specifier,
|
|
|
2475 Lisp_Object matchspec,
|
|
|
2476 Lisp_Object domain,
|
|
|
2477 Lisp_Object inst_list,
|
|
|
2478 Error_behavior errb, int no_quit,
|
|
|
2479 Lisp_Object depth)
|
|
|
2480 {
|
|
|
2481 /* This function can GC */
|
|
440
|
2482 Lisp_Specifier *sp;
|
|
428
|
2483 Lisp_Object device;
|
|
|
2484 Lisp_Object rest;
|
|
|
2485 int count = specpdl_depth ();
|
|
|
2486 struct gcpro gcpro1, gcpro2;
|
|
|
2487
|
|
|
2488 GCPRO2 (specifier, inst_list);
|
|
|
2489
|
|
|
2490 sp = XSPECIFIER (specifier);
|
|
442
|
2491 device = DOMAIN_DEVICE (domain);
|
|
428
|
2492
|
|
|
2493 if (no_quit)
|
|
|
2494 /* The instantiate method is allowed to call eval. Since it
|
|
|
2495 is quite common for this function to get called from somewhere in
|
|
|
2496 redisplay we need to make sure that quits are ignored. Otherwise
|
|
|
2497 Fsignal will abort. */
|
|
|
2498 specbind (Qinhibit_quit, Qt);
|
|
|
2499
|
|
|
2500 LIST_LOOP (rest, inst_list)
|
|
|
2501 {
|
|
|
2502 Lisp_Object tagged_inst = XCAR (rest);
|
|
|
2503 Lisp_Object tag_set = XCAR (tagged_inst);
|
|
|
2504
|
|
|
2505 if (device_matches_specifier_tag_set_p (device, tag_set))
|
|
|
2506 {
|
|
|
2507 Lisp_Object val = XCDR (tagged_inst);
|
|
|
2508
|
|
|
2509 if (HAS_SPECMETH_P (sp, instantiate))
|
|
|
2510 val = call_with_suspended_errors
|
|
|
2511 ((lisp_fn_t) RAW_SPECMETH (sp, instantiate),
|
|
|
2512 Qunbound, Qspecifier, errb, 5, specifier,
|
|
|
2513 matchspec, domain, val, depth);
|
|
|
2514
|
|
|
2515 if (!UNBOUNDP (val))
|
|
|
2516 {
|
|
|
2517 unbind_to (count, Qnil);
|
|
|
2518 UNGCPRO;
|
|
|
2519 return val;
|
|
|
2520 }
|
|
|
2521 }
|
|
|
2522 }
|
|
|
2523
|
|
|
2524 unbind_to (count, Qnil);
|
|
|
2525 UNGCPRO;
|
|
|
2526 return Qunbound;
|
|
|
2527 }
|
|
|
2528
|
|
|
2529 /* Given a SPECIFIER and a DOMAIN, return a specific instance for that
|
|
|
2530 specifier. Try to find one by checking the specifier types from most
|
|
|
2531 specific (buffer) to most general (global). If we find an instance,
|
|
|
2532 return it. Otherwise return Qunbound. */
|
|
|
2533
|
|
|
2534 #define CHECK_INSTANCE_ENTRY(key, matchspec, type) do { \
|
|
|
2535 Lisp_Object *CIE_inst_list = \
|
|
|
2536 specifier_get_inst_list (specifier, key, type); \
|
|
|
2537 if (CIE_inst_list) \
|
|
|
2538 { \
|
|
|
2539 Lisp_Object CIE_val = \
|
|
|
2540 specifier_instance_from_inst_list (specifier, matchspec, \
|
|
|
2541 domain, *CIE_inst_list, \
|
|
|
2542 errb, no_quit, depth); \
|
|
|
2543 if (!UNBOUNDP (CIE_val)) \
|
|
|
2544 return CIE_val; \
|
|
|
2545 } \
|
|
|
2546 } while (0)
|
|
|
2547
|
|
|
2548 /* We accept any window, frame or device domain and do our checking
|
|
|
2549 starting from as specific a locale type as we can determine from the
|
|
|
2550 domain we are passed and going on up through as many other locale types
|
|
|
2551 as we can determine. In practice, when called from redisplay the
|
|
|
2552 arg will usually be a window and occasionally a frame. If
|
|
|
2553 triggered by a user call, who knows what it will usually be. */
|
|
|
2554 Lisp_Object
|
|
|
2555 specifier_instance (Lisp_Object specifier, Lisp_Object matchspec,
|
|
|
2556 Lisp_Object domain, Error_behavior errb, int no_quit,
|
|
|
2557 int no_fallback, Lisp_Object depth)
|
|
|
2558 {
|
|
|
2559 Lisp_Object buffer = Qnil;
|
|
|
2560 Lisp_Object window = Qnil;
|
|
|
2561 Lisp_Object frame = Qnil;
|
|
|
2562 Lisp_Object device = Qnil;
|
|
444
|
2563 Lisp_Object tag = Qnil; /* #### currently unused */
|
|
|
2564 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
428
|
2565
|
|
|
2566 /* Attempt to determine buffer, window, frame, and device from the
|
|
|
2567 domain. */
|
|
442
|
2568 /* #### get image instances out of domains! */
|
|
|
2569 if (IMAGE_INSTANCEP (domain))
|
|
|
2570 window = DOMAIN_WINDOW (domain);
|
|
|
2571 else if (WINDOWP (domain))
|
|
428
|
2572 window = domain;
|
|
|
2573 else if (FRAMEP (domain))
|
|
|
2574 frame = domain;
|
|
|
2575 else if (DEVICEP (domain))
|
|
|
2576 device = domain;
|
|
|
2577 else
|
|
442
|
2578 /* dmoore writes: [dammit, this should just signal an error or something
|
|
|
2579 shouldn't it?]
|
|
|
2580
|
|
|
2581 No. Errors are handled in Lisp primitives implementation.
|
|
428
|
2582 Invalid domain is a design error here - kkm. */
|
|
|
2583 abort ();
|
|
|
2584
|
|
|
2585 if (NILP (buffer) && !NILP (window))
|
|
444
|
2586 buffer = WINDOW_BUFFER (XWINDOW (window));
|
|
428
|
2587 if (NILP (frame) && !NILP (window))
|
|
|
2588 frame = XWINDOW (window)->frame;
|
|
|
2589 if (NILP (device))
|
|
|
2590 /* frame had better exist; if device is undeterminable, something
|
|
|
2591 really went wrong. */
|
|
444
|
2592 device = FRAME_DEVICE (XFRAME (frame));
|
|
428
|
2593
|
|
|
2594 /* device had better be determined by now; abort if not. */
|
|
444
|
2595 tag = DEVICE_CLASS (XDEVICE (device));
|
|
428
|
2596
|
|
|
2597 depth = make_int (1 + XINT (depth));
|
|
|
2598 if (XINT (depth) > 20)
|
|
|
2599 {
|
|
|
2600 maybe_error (Qspecifier, errb, "Apparent loop in specifier inheritance");
|
|
|
2601 /* The specification is fucked; at least try the fallback
|
|
|
2602 (which better not be fucked, because it's not changeable
|
|
|
2603 from Lisp). */
|
|
|
2604 depth = Qzero;
|
|
|
2605 goto do_fallback;
|
|
|
2606 }
|
|
|
2607
|
|
434
|
2608 retry:
|
|
428
|
2609 /* First see if we can generate one from the window specifiers. */
|
|
|
2610 if (!NILP (window))
|
|
|
2611 CHECK_INSTANCE_ENTRY (window, matchspec, LOCALE_WINDOW);
|
|
|
2612
|
|
|
2613 /* Next see if we can generate one from the buffer specifiers. */
|
|
|
2614 if (!NILP (buffer))
|
|
|
2615 CHECK_INSTANCE_ENTRY (buffer, matchspec, LOCALE_BUFFER);
|
|
|
2616
|
|
|
2617 /* Next see if we can generate one from the frame specifiers. */
|
|
|
2618 if (!NILP (frame))
|
|
|
2619 CHECK_INSTANCE_ENTRY (frame, matchspec, LOCALE_FRAME);
|
|
|
2620
|
|
|
2621 /* If we still haven't succeeded try with the device specifiers. */
|
|
|
2622 CHECK_INSTANCE_ENTRY (device, matchspec, LOCALE_DEVICE);
|
|
|
2623
|
|
|
2624 /* Last and least try the global specifiers. */
|
|
|
2625 CHECK_INSTANCE_ENTRY (Qglobal, matchspec, LOCALE_GLOBAL);
|
|
|
2626
|
|
434
|
2627 do_fallback:
|
|
428
|
2628 /* We're out of specifiers and we still haven't generated an
|
|
|
2629 instance. At least try the fallback ... If this fails,
|
|
|
2630 then we just return Qunbound. */
|
|
|
2631
|
|
|
2632 if (no_fallback || NILP (sp->fallback))
|
|
|
2633 /* I said, I don't want the fallbacks. */
|
|
|
2634 return Qunbound;
|
|
|
2635
|
|
|
2636 if (SPECIFIERP (sp->fallback))
|
|
|
2637 {
|
|
|
2638 /* If you introduced loops in the default specifier chain,
|
|
|
2639 then you're fucked, so you better not do this. */
|
|
|
2640 specifier = sp->fallback;
|
|
|
2641 sp = XSPECIFIER (specifier);
|
|
|
2642 goto retry;
|
|
|
2643 }
|
|
|
2644
|
|
|
2645 assert (CONSP (sp->fallback));
|
|
|
2646 return specifier_instance_from_inst_list (specifier, matchspec, domain,
|
|
|
2647 sp->fallback, errb, no_quit,
|
|
|
2648 depth);
|
|
|
2649 }
|
|
|
2650 #undef CHECK_INSTANCE_ENTRY
|
|
|
2651
|
|
|
2652 Lisp_Object
|
|
|
2653 specifier_instance_no_quit (Lisp_Object specifier, Lisp_Object matchspec,
|
|
|
2654 Lisp_Object domain, Error_behavior errb,
|
|
|
2655 int no_fallback, Lisp_Object depth)
|
|
|
2656 {
|
|
|
2657 return specifier_instance (specifier, matchspec, domain, errb,
|
|
|
2658 1, no_fallback, depth);
|
|
|
2659 }
|
|
|
2660
|
|
|
2661 DEFUN ("specifier-instance", Fspecifier_instance, 1, 4, 0, /*
|
|
|
2662 Instantiate SPECIFIER (return its value) in DOMAIN.
|
|
|
2663 If no instance can be generated for this domain, return DEFAULT.
|
|
|
2664
|
|
|
2665 DOMAIN should be a window, frame, or device. Other values that are legal
|
|
|
2666 as a locale (e.g. a buffer) are not valid as a domain because they do not
|
|
|
2667 provide enough information to identify a particular device (see
|
|
|
2668 `valid-specifier-domain-p'). DOMAIN defaults to the selected window
|
|
|
2669 if omitted.
|
|
|
2670
|
|
|
2671 "Instantiating" a specifier in a particular domain means determining
|
|
|
2672 the specifier's "value" in that domain. This is accomplished by
|
|
|
2673 searching through the specifications in the specifier that correspond
|
|
|
2674 to all locales that can be derived from the given domain, from specific
|
|
|
2675 to general. In most cases, the domain is an Emacs window. In that case
|
|
|
2676 specifications are searched for as follows:
|
|
|
2677
|
|
|
2678 1. A specification whose locale is the window itself;
|
|
|
2679 2. A specification whose locale is the window's buffer;
|
|
|
2680 3. A specification whose locale is the window's frame;
|
|
|
2681 4. A specification whose locale is the window's frame's device;
|
|
|
2682 5. A specification whose locale is 'global.
|
|
|
2683
|
|
|
2684 If all of those fail, then the C-code-provided fallback value for
|
|
|
2685 this specifier is consulted (see `specifier-fallback'). If it is
|
|
|
2686 an inst-list, then this function attempts to instantiate that list
|
|
|
2687 just as when a specification is located in the first five steps above.
|
|
|
2688 If the fallback is a specifier, `specifier-instance' is called
|
|
|
2689 recursively on this specifier and the return value used. Note,
|
|
|
2690 however, that if the optional argument NO-FALLBACK is non-nil,
|
|
|
2691 the fallback value will not be consulted.
|
|
|
2692
|
|
|
2693 Note that there may be more than one specification matching a particular
|
|
|
2694 locale; all such specifications are considered before looking for any
|
|
|
2695 specifications for more general locales. Any particular specification
|
|
|
2696 that is found may be rejected because its tag set does not match the
|
|
|
2697 device being instantiated over, or because the specification is not
|
|
|
2698 valid for the device of the given domain (e.g. the font or color name
|
|
|
2699 does not exist for this particular X server).
|
|
|
2700
|
|
|
2701 The returned value is dependent on the type of specifier. For example,
|
|
|
2702 for a font specifier (as returned by the `face-font' function), the returned
|
|
|
2703 value will be a font-instance object. For glyphs, the returned value
|
|
|
2704 will be a string, pixmap, or subwindow.
|
|
|
2705
|
|
|
2706 See also `specifier-matching-instance'.
|
|
|
2707 */
|
|
|
2708 (specifier, domain, default_, no_fallback))
|
|
|
2709 {
|
|
|
2710 Lisp_Object instance;
|
|
|
2711
|
|
|
2712 CHECK_SPECIFIER (specifier);
|
|
|
2713 domain = decode_domain (domain);
|
|
|
2714
|
|
|
2715 instance = specifier_instance (specifier, Qunbound, domain, ERROR_ME, 0,
|
|
|
2716 !NILP (no_fallback), Qzero);
|
|
|
2717 return UNBOUNDP (instance) ? default_ : instance;
|
|
|
2718 }
|
|
|
2719
|
|
|
2720 DEFUN ("specifier-matching-instance", Fspecifier_matching_instance, 2, 5, 0, /*
|
|
|
2721 Return an instance for SPECIFIER in DOMAIN that matches MATCHSPEC.
|
|
|
2722 If no instance can be generated for this domain, return DEFAULT.
|
|
|
2723
|
|
|
2724 This function is identical to `specifier-instance' except that a
|
|
|
2725 specification will only be considered if it matches MATCHSPEC.
|
|
|
2726 The definition of "match", and allowed values for MATCHSPEC, are
|
|
|
2727 dependent on the particular type of specifier. Here are some examples:
|
|
|
2728
|
|
|
2729 -- For chartable (e.g. display table) specifiers, MATCHSPEC should be a
|
|
|
2730 character, and the specification (a chartable) must give a value for
|
|
|
2731 that character in order to be considered. This allows you to specify,
|
|
|
2732 e.g., a buffer-local display table that only gives values for particular
|
|
|
2733 characters. All other characters are handled as if the buffer-local
|
|
|
2734 display table is not there. (Chartable specifiers are not yet
|
|
|
2735 implemented.)
|
|
|
2736
|
|
|
2737 -- For font specifiers, MATCHSPEC should be a charset, and the specification
|
|
|
2738 (a font string) must have a registry that matches the charset's registry.
|
|
|
2739 (This only makes sense with Mule support.) This makes it easy to choose a
|
|
|
2740 font that can display a particular character. (This is what redisplay
|
|
|
2741 does, in fact.)
|
|
|
2742 */
|
|
|
2743 (specifier, matchspec, domain, default_, no_fallback))
|
|
|
2744 {
|
|
|
2745 Lisp_Object instance;
|
|
|
2746
|
|
|
2747 CHECK_SPECIFIER (specifier);
|
|
|
2748 check_valid_specifier_matchspec (matchspec, XSPECIFIER (specifier)->methods,
|
|
|
2749 ERROR_ME);
|
|
|
2750 domain = decode_domain (domain);
|
|
|
2751
|
|
|
2752 instance = specifier_instance (specifier, matchspec, domain, ERROR_ME,
|
|
|
2753 0, !NILP (no_fallback), Qzero);
|
|
|
2754 return UNBOUNDP (instance) ? default_ : instance;
|
|
|
2755 }
|
|
|
2756
|
|
|
2757 DEFUN ("specifier-instance-from-inst-list", Fspecifier_instance_from_inst_list,
|
|
|
2758 3, 4, 0, /*
|
|
|
2759 Attempt to convert a particular inst-list into an instance.
|
|
|
2760 This attempts to instantiate INST-LIST in the given DOMAIN,
|
|
|
2761 as if INST-LIST existed in a specification in SPECIFIER. If
|
|
|
2762 the instantiation fails, DEFAULT is returned. In most circumstances,
|
|
|
2763 you should not use this function; use `specifier-instance' instead.
|
|
|
2764 */
|
|
|
2765 (specifier, domain, inst_list, default_))
|
|
|
2766 {
|
|
|
2767 Lisp_Object val = Qunbound;
|
|
440
|
2768 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
428
|
2769 struct gcpro gcpro1;
|
|
|
2770 Lisp_Object built_up_list = Qnil;
|
|
|
2771
|
|
|
2772 CHECK_SPECIFIER (specifier);
|
|
|
2773 check_valid_domain (domain);
|
|
|
2774 check_valid_inst_list (inst_list, sp->methods, ERROR_ME);
|
|
|
2775 GCPRO1 (built_up_list);
|
|
|
2776 built_up_list = build_up_processed_list (specifier, domain, inst_list);
|
|
|
2777 if (!NILP (built_up_list))
|
|
|
2778 val = specifier_instance_from_inst_list (specifier, Qunbound, domain,
|
|
|
2779 built_up_list, ERROR_ME,
|
|
|
2780 0, Qzero);
|
|
|
2781 UNGCPRO;
|
|
|
2782 return UNBOUNDP (val) ? default_ : val;
|
|
|
2783 }
|
|
|
2784
|
|
442
|
2785 DEFUN ("specifier-matching-instance-from-inst-list",
|
|
|
2786 Fspecifier_matching_instance_from_inst_list,
|
|
428
|
2787 4, 5, 0, /*
|
|
|
2788 Attempt to convert a particular inst-list into an instance.
|
|
|
2789 This attempts to instantiate INST-LIST in the given DOMAIN
|
|
|
2790 \(as if INST-LIST existed in a specification in SPECIFIER),
|
|
|
2791 matching the specifications against MATCHSPEC.
|
|
|
2792
|
|
|
2793 This function is analogous to `specifier-instance-from-inst-list'
|
|
|
2794 but allows for specification-matching as in `specifier-matching-instance'.
|
|
|
2795 See that function for a description of exactly how the matching process
|
|
|
2796 works.
|
|
|
2797 */
|
|
|
2798 (specifier, matchspec, domain, inst_list, default_))
|
|
|
2799 {
|
|
|
2800 Lisp_Object val = Qunbound;
|
|
440
|
2801 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
428
|
2802 struct gcpro gcpro1;
|
|
|
2803 Lisp_Object built_up_list = Qnil;
|
|
|
2804
|
|
|
2805 CHECK_SPECIFIER (specifier);
|
|
|
2806 check_valid_specifier_matchspec (matchspec, XSPECIFIER (specifier)->methods,
|
|
|
2807 ERROR_ME);
|
|
|
2808 check_valid_domain (domain);
|
|
|
2809 check_valid_inst_list (inst_list, sp->methods, ERROR_ME);
|
|
|
2810 GCPRO1 (built_up_list);
|
|
|
2811 built_up_list = build_up_processed_list (specifier, domain, inst_list);
|
|
|
2812 if (!NILP (built_up_list))
|
|
|
2813 val = specifier_instance_from_inst_list (specifier, matchspec, domain,
|
|
|
2814 built_up_list, ERROR_ME,
|
|
|
2815 0, Qzero);
|
|
|
2816 UNGCPRO;
|
|
|
2817 return UNBOUNDP (val) ? default_ : val;
|
|
|
2818 }
|
|
|
2819
|
|
|
2820
|
|
|
2821 /************************************************************************/
|
|
|
2822 /* Caching in the struct window or frame */
|
|
|
2823 /************************************************************************/
|
|
|
2824
|
|
|
2825 /* Either STRUCT_WINDOW_OFFSET or STRUCT_FRAME_OFFSET can be 0 to indicate
|
|
|
2826 no caching in that sort of object. */
|
|
|
2827
|
|
|
2828 /* #### It would be nice if the specifier caching automatically knew
|
|
|
2829 about specifier fallbacks, so we didn't have to do it ourselves. */
|
|
|
2830
|
|
|
2831 void
|
|
|
2832 set_specifier_caching (Lisp_Object specifier, int struct_window_offset,
|
|
|
2833 void (*value_changed_in_window)
|
|
|
2834 (Lisp_Object specifier, struct window *w,
|
|
|
2835 Lisp_Object oldval),
|
|
|
2836 int struct_frame_offset,
|
|
|
2837 void (*value_changed_in_frame)
|
|
|
2838 (Lisp_Object specifier, struct frame *f,
|
|
444
|
2839 Lisp_Object oldval),
|
|
|
2840 int always_recompute)
|
|
428
|
2841 {
|
|
440
|
2842 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
428
|
2843 assert (!GHOST_SPECIFIER_P (sp));
|
|
|
2844
|
|
|
2845 if (!sp->caching)
|
|
|
2846 sp->caching = xnew_and_zero (struct specifier_caching);
|
|
|
2847 sp->caching->offset_into_struct_window = struct_window_offset;
|
|
|
2848 sp->caching->value_changed_in_window = value_changed_in_window;
|
|
|
2849 sp->caching->offset_into_struct_frame = struct_frame_offset;
|
|
|
2850 sp->caching->value_changed_in_frame = value_changed_in_frame;
|
|
444
|
2851 sp->caching->always_recompute = always_recompute;
|
|
428
|
2852 Vcached_specifiers = Fcons (specifier, Vcached_specifiers);
|
|
|
2853 if (BODILY_SPECIFIER_P (sp))
|
|
|
2854 GHOST_SPECIFIER(sp)->caching = sp->caching;
|
|
|
2855 recompute_cached_specifier_everywhere (specifier);
|
|
|
2856 }
|
|
|
2857
|
|
|
2858 static void
|
|
|
2859 recompute_one_cached_specifier_in_window (Lisp_Object specifier,
|
|
|
2860 struct window *w)
|
|
|
2861 {
|
|
|
2862 Lisp_Object window;
|
|
444
|
2863 Lisp_Object newval, *location, oldval;
|
|
428
|
2864
|
|
|
2865 assert (!GHOST_SPECIFIER_P (XSPECIFIER (specifier)));
|
|
|
2866
|
|
|
2867 XSETWINDOW (window, w);
|
|
|
2868
|
|
|
2869 newval = specifier_instance (specifier, Qunbound, window, ERROR_ME_WARN,
|
|
|
2870 0, 0, Qzero);
|
|
|
2871 /* If newval ended up Qunbound, then the calling functions
|
|
|
2872 better be able to deal. If not, set a default so this
|
|
|
2873 never happens or correct it in the value_changed_in_window
|
|
|
2874 method. */
|
|
|
2875 location = (Lisp_Object *)
|
|
|
2876 ((char *) w + XSPECIFIER (specifier)->caching->offset_into_struct_window);
|
|
442
|
2877 /* #### What's the point of this check, other than to optimize image
|
|
|
2878 instance instantiation? Unless you specify a caching instantiate
|
|
|
2879 method the instantiation that specifier_instance will do will
|
|
|
2880 always create a new copy. Thus EQ will always fail. Unfortunately
|
|
|
2881 calling equal is no good either as this doesn't take into account
|
|
|
2882 things attached to the specifier - for instance strings on
|
|
|
2883 extents. --andyp */
|
|
444
|
2884 if (!EQ (newval, *location) || XSPECIFIER (specifier)->caching->always_recompute)
|
|
428
|
2885 {
|
|
444
|
2886 oldval = *location;
|
|
428
|
2887 *location = newval;
|
|
|
2888 (XSPECIFIER (specifier)->caching->value_changed_in_window)
|
|
|
2889 (specifier, w, oldval);
|
|
|
2890 }
|
|
|
2891 }
|
|
|
2892
|
|
|
2893 static void
|
|
|
2894 recompute_one_cached_specifier_in_frame (Lisp_Object specifier,
|
|
|
2895 struct frame *f)
|
|
|
2896 {
|
|
|
2897 Lisp_Object frame;
|
|
444
|
2898 Lisp_Object newval, *location, oldval;
|
|
428
|
2899
|
|
|
2900 assert (!GHOST_SPECIFIER_P (XSPECIFIER (specifier)));
|
|
|
2901
|
|
|
2902 XSETFRAME (frame, f);
|
|
|
2903
|
|
|
2904 newval = specifier_instance (specifier, Qunbound, frame, ERROR_ME_WARN,
|
|
|
2905 0, 0, Qzero);
|
|
|
2906 /* If newval ended up Qunbound, then the calling functions
|
|
|
2907 better be able to deal. If not, set a default so this
|
|
|
2908 never happens or correct it in the value_changed_in_frame
|
|
|
2909 method. */
|
|
|
2910 location = (Lisp_Object *)
|
|
|
2911 ((char *) f + XSPECIFIER (specifier)->caching->offset_into_struct_frame);
|
|
444
|
2912 if (!EQ (newval, *location) || XSPECIFIER (specifier)->caching->always_recompute)
|
|
428
|
2913 {
|
|
444
|
2914 oldval = *location;
|
|
428
|
2915 *location = newval;
|
|
|
2916 (XSPECIFIER (specifier)->caching->value_changed_in_frame)
|
|
|
2917 (specifier, f, oldval);
|
|
|
2918 }
|
|
|
2919 }
|
|
|
2920
|
|
|
2921 void
|
|
|
2922 recompute_all_cached_specifiers_in_window (struct window *w)
|
|
|
2923 {
|
|
|
2924 Lisp_Object rest;
|
|
|
2925
|
|
|
2926 LIST_LOOP (rest, Vcached_specifiers)
|
|
|
2927 {
|
|
|
2928 Lisp_Object specifier = XCAR (rest);
|
|
|
2929 if (XSPECIFIER (specifier)->caching->offset_into_struct_window)
|
|
|
2930 recompute_one_cached_specifier_in_window (specifier, w);
|
|
|
2931 }
|
|
|
2932 }
|
|
|
2933
|
|
|
2934 void
|
|
|
2935 recompute_all_cached_specifiers_in_frame (struct frame *f)
|
|
|
2936 {
|
|
|
2937 Lisp_Object rest;
|
|
|
2938
|
|
|
2939 LIST_LOOP (rest, Vcached_specifiers)
|
|
|
2940 {
|
|
|
2941 Lisp_Object specifier = XCAR (rest);
|
|
|
2942 if (XSPECIFIER (specifier)->caching->offset_into_struct_frame)
|
|
|
2943 recompute_one_cached_specifier_in_frame (specifier, f);
|
|
|
2944 }
|
|
|
2945 }
|
|
|
2946
|
|
|
2947 static int
|
|
|
2948 recompute_cached_specifier_everywhere_mapfun (struct window *w,
|
|
|
2949 void *closure)
|
|
|
2950 {
|
|
|
2951 Lisp_Object specifier = Qnil;
|
|
|
2952
|
|
|
2953 VOID_TO_LISP (specifier, closure);
|
|
|
2954 recompute_one_cached_specifier_in_window (specifier, w);
|
|
|
2955 return 0;
|
|
|
2956 }
|
|
|
2957
|
|
|
2958 static void
|
|
|
2959 recompute_cached_specifier_everywhere (Lisp_Object specifier)
|
|
|
2960 {
|
|
|
2961 Lisp_Object frmcons, devcons, concons;
|
|
|
2962
|
|
|
2963 specifier = bodily_specifier (specifier);
|
|
|
2964
|
|
|
2965 if (!XSPECIFIER (specifier)->caching)
|
|
|
2966 return;
|
|
|
2967
|
|
|
2968 if (XSPECIFIER (specifier)->caching->offset_into_struct_window)
|
|
|
2969 {
|
|
|
2970 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
2971 map_windows (XFRAME (XCAR (frmcons)),
|
|
|
2972 recompute_cached_specifier_everywhere_mapfun,
|
|
|
2973 LISP_TO_VOID (specifier));
|
|
|
2974 }
|
|
|
2975
|
|
|
2976 if (XSPECIFIER (specifier)->caching->offset_into_struct_frame)
|
|
|
2977 {
|
|
|
2978 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
2979 recompute_one_cached_specifier_in_frame (specifier,
|
|
|
2980 XFRAME (XCAR (frmcons)));
|
|
|
2981 }
|
|
|
2982 }
|
|
|
2983
|
|
|
2984 DEFUN ("set-specifier-dirty-flag", Fset_specifier_dirty_flag, 1, 1, 0, /*
|
|
|
2985 Force recomputation of any caches associated with SPECIFIER.
|
|
|
2986 Note that this automatically happens whenever you change a specification
|
|
|
2987 in SPECIFIER; you do not have to call this function then.
|
|
|
2988 One example of where this function is useful is when you have a
|
|
|
2989 toolbar button whose `active-p' field is an expression to be
|
|
|
2990 evaluated. Calling `set-specifier-dirty-flag' on the
|
|
|
2991 toolbar specifier will force the `active-p' fields to be
|
|
|
2992 recomputed.
|
|
|
2993 */
|
|
|
2994 (specifier))
|
|
|
2995 {
|
|
|
2996 CHECK_SPECIFIER (specifier);
|
|
|
2997 recompute_cached_specifier_everywhere (specifier);
|
|
|
2998 return Qnil;
|
|
|
2999 }
|
|
|
3000
|
|
|
3001
|
|
|
3002 /************************************************************************/
|
|
|
3003 /* Generic specifier type */
|
|
|
3004 /************************************************************************/
|
|
|
3005
|
|
|
3006 DEFINE_SPECIFIER_TYPE (generic);
|
|
|
3007
|
|
|
3008 #if 0
|
|
|
3009
|
|
|
3010 /* This is the string that used to be in `generic-specifier-p'.
|
|
|
3011 The idea is good, but it doesn't quite work in the form it's
|
|
|
3012 in. (One major problem is that validating an instantiator
|
|
|
3013 is supposed to require only that the specifier type is passed,
|
|
|
3014 while with this approach the actual specifier is needed.)
|
|
|
3015
|
|
|
3016 What really needs to be done is to write a function
|
|
|
3017 `make-specifier-type' that creates new specifier types.
|
|
442
|
3018
|
|
|
3019 #### [I'll look into this for 19.14.] Well, sometime. (Currently
|
|
|
3020 May 2000, 21.2 is in development. 19.14 was released in June 1996.) */
|
|
428
|
3021
|
|
|
3022 "A generic specifier is a generalized kind of specifier with user-defined\n"
|
|
|
3023 "semantics. The instantiator can be any kind of Lisp object, and the\n"
|
|
|
3024 "instance computed from it is likewise any kind of Lisp object. The\n"
|
|
|
3025 "SPECIFIER-DATA should be an alist of methods governing how the specifier\n"
|
|
|
3026 "works. All methods are optional, and reasonable default methods will be\n"
|
|
|
3027 "provided. Currently there are two defined methods: 'instantiate and\n"
|
|
|
3028 "'validate.\n"
|
|
|
3029 "\n"
|
|
|
3030 "'instantiate specifies how to do the instantiation; if omitted, the\n"
|
|
|
3031 "instantiator itself is simply returned as the instance. The method\n"
|
|
|
3032 "should be a function that accepts three parameters (a specifier, the\n"
|
|
|
3033 "instantiator that matched the domain being instantiated over, and that\n"
|
|
|
3034 "domain), and should return a one-element list containing the instance,\n"
|
|
|
3035 "or nil if no instance exists. Note that the domain passed to this function\n"
|
|
|
3036 "is the domain being instantiated over, which may not be the same as the\n"
|
|
|
3037 "locale contained in the specification corresponding to the instantiator\n"
|
|
|
3038 "(for example, the domain being instantiated over could be a window, but\n"
|
|
|
3039 "the locale corresponding to the passed instantiator could be the window's\n"
|
|
|
3040 "buffer or frame).\n"
|
|
|
3041 "\n"
|
|
|
3042 "'validate specifies whether a given instantiator is valid; if omitted,\n"
|
|
|
3043 "all instantiators are considered valid. It should be a function of\n"
|
|
|
3044 "two arguments: an instantiator and a flag CAN-SIGNAL-ERROR. If this\n"
|
|
|
3045 "flag is false, the function must simply return t or nil indicating\n"
|
|
|
3046 "whether the instantiator is valid. If this flag is true, the function\n"
|
|
|
3047 "is free to signal an error if it encounters an invalid instantiator\n"
|
|
|
3048 "(this can be useful for issuing a specific error about exactly why the\n"
|
|
|
3049 "instantiator is valid). It can also return nil to indicate an invalid\n"
|
|
|
3050 "instantiator; in this case, a general error will be signalled."
|
|
|
3051
|
|
|
3052 #endif /* 0 */
|
|
|
3053
|
|
|
3054 DEFUN ("generic-specifier-p", Fgeneric_specifier_p, 1, 1, 0, /*
|
|
|
3055 Return non-nil if OBJECT is a generic specifier.
|
|
|
3056
|
|
442
|
3057 See `make-generic-specifier' for a description of possible generic
|
|
|
3058 instantiators.
|
|
428
|
3059 */
|
|
|
3060 (object))
|
|
|
3061 {
|
|
|
3062 return GENERIC_SPECIFIERP (object) ? Qt : Qnil;
|
|
|
3063 }
|
|
|
3064
|
|
|
3065
|
|
|
3066 /************************************************************************/
|
|
|
3067 /* Integer specifier type */
|
|
|
3068 /************************************************************************/
|
|
|
3069
|
|
|
3070 DEFINE_SPECIFIER_TYPE (integer);
|
|
|
3071
|
|
|
3072 static void
|
|
|
3073 integer_validate (Lisp_Object instantiator)
|
|
|
3074 {
|
|
|
3075 CHECK_INT (instantiator);
|
|
|
3076 }
|
|
|
3077
|
|
|
3078 DEFUN ("integer-specifier-p", Finteger_specifier_p, 1, 1, 0, /*
|
|
|
3079 Return non-nil if OBJECT is an integer specifier.
|
|
442
|
3080
|
|
|
3081 See `make-integer-specifier' for a description of possible integer
|
|
|
3082 instantiators.
|
|
428
|
3083 */
|
|
|
3084 (object))
|
|
|
3085 {
|
|
|
3086 return INTEGER_SPECIFIERP (object) ? Qt : Qnil;
|
|
|
3087 }
|
|
|
3088
|
|
|
3089 /************************************************************************/
|
|
|
3090 /* Non-negative-integer specifier type */
|
|
|
3091 /************************************************************************/
|
|
|
3092
|
|
|
3093 DEFINE_SPECIFIER_TYPE (natnum);
|
|
|
3094
|
|
|
3095 static void
|
|
|
3096 natnum_validate (Lisp_Object instantiator)
|
|
|
3097 {
|
|
|
3098 CHECK_NATNUM (instantiator);
|
|
|
3099 }
|
|
|
3100
|
|
|
3101 DEFUN ("natnum-specifier-p", Fnatnum_specifier_p, 1, 1, 0, /*
|
|
|
3102 Return non-nil if OBJECT is a natnum (non-negative-integer) specifier.
|
|
442
|
3103
|
|
|
3104 See `make-natnum-specifier' for a description of possible natnum
|
|
|
3105 instantiators.
|
|
428
|
3106 */
|
|
|
3107 (object))
|
|
|
3108 {
|
|
|
3109 return NATNUM_SPECIFIERP (object) ? Qt : Qnil;
|
|
|
3110 }
|
|
|
3111
|
|
|
3112 /************************************************************************/
|
|
|
3113 /* Boolean specifier type */
|
|
|
3114 /************************************************************************/
|
|
|
3115
|
|
|
3116 DEFINE_SPECIFIER_TYPE (boolean);
|
|
|
3117
|
|
|
3118 static void
|
|
|
3119 boolean_validate (Lisp_Object instantiator)
|
|
|
3120 {
|
|
|
3121 if (!EQ (instantiator, Qt) && !EQ (instantiator, Qnil))
|
|
442
|
3122 signal_type_error (Qspecifier_argument_error, "Must be t or nil",
|
|
|
3123 instantiator);
|
|
428
|
3124 }
|
|
|
3125
|
|
|
3126 DEFUN ("boolean-specifier-p", Fboolean_specifier_p, 1, 1, 0, /*
|
|
|
3127 Return non-nil if OBJECT is a boolean specifier.
|
|
442
|
3128
|
|
|
3129 See `make-boolean-specifier' for a description of possible boolean
|
|
|
3130 instantiators.
|
|
428
|
3131 */
|
|
|
3132 (object))
|
|
|
3133 {
|
|
|
3134 return BOOLEAN_SPECIFIERP (object) ? Qt : Qnil;
|
|
|
3135 }
|
|
|
3136
|
|
|
3137 /************************************************************************/
|
|
|
3138 /* Display table specifier type */
|
|
|
3139 /************************************************************************/
|
|
|
3140
|
|
|
3141 DEFINE_SPECIFIER_TYPE (display_table);
|
|
|
3142
|
|
442
|
3143 #define VALID_SINGLE_DISPTABLE_INSTANTIATOR_P(instantiator) \
|
|
|
3144 (VECTORP (instantiator) \
|
|
|
3145 || (CHAR_TABLEP (instantiator) \
|
|
|
3146 && (XCHAR_TABLE_TYPE (instantiator) == CHAR_TABLE_TYPE_CHAR \
|
|
|
3147 || XCHAR_TABLE_TYPE (instantiator) == CHAR_TABLE_TYPE_GENERIC)) \
|
|
428
|
3148 || RANGE_TABLEP (instantiator))
|
|
|
3149
|
|
|
3150 static void
|
|
|
3151 display_table_validate (Lisp_Object instantiator)
|
|
|
3152 {
|
|
|
3153 if (NILP (instantiator))
|
|
|
3154 /* OK */
|
|
|
3155 ;
|
|
|
3156 else if (CONSP (instantiator))
|
|
|
3157 {
|
|
|
3158 Lisp_Object tail;
|
|
|
3159 EXTERNAL_LIST_LOOP (tail, instantiator)
|
|
|
3160 {
|
|
|
3161 Lisp_Object car = XCAR (tail);
|
|
|
3162 if (!VALID_SINGLE_DISPTABLE_INSTANTIATOR_P (car))
|
|
|
3163 goto lose;
|
|
|
3164 }
|
|
|
3165 }
|
|
|
3166 else
|
|
|
3167 {
|
|
|
3168 if (!VALID_SINGLE_DISPTABLE_INSTANTIATOR_P (instantiator))
|
|
|
3169 {
|
|
|
3170 lose:
|
|
442
|
3171 dead_wrong_type_argument
|
|
|
3172 (display_table_specifier_methods->predicate_symbol,
|
|
428
|
3173 instantiator);
|
|
|
3174 }
|
|
|
3175 }
|
|
|
3176 }
|
|
|
3177
|
|
|
3178 DEFUN ("display-table-specifier-p", Fdisplay_table_specifier_p, 1, 1, 0, /*
|
|
|
3179 Return non-nil if OBJECT is a display-table specifier.
|
|
442
|
3180
|
|
|
3181 See `current-display-table' for a description of possible display-table
|
|
|
3182 instantiators.
|
|
428
|
3183 */
|
|
|
3184 (object))
|
|
|
3185 {
|
|
|
3186 return DISPLAYTABLE_SPECIFIERP (object) ? Qt : Qnil;
|
|
|
3187 }
|
|
|
3188
|
|
|
3189
|
|
|
3190 /************************************************************************/
|
|
|
3191 /* Initialization */
|
|
|
3192 /************************************************************************/
|
|
|
3193
|
|
|
3194 void
|
|
|
3195 syms_of_specifier (void)
|
|
|
3196 {
|
|
442
|
3197 INIT_LRECORD_IMPLEMENTATION (specifier);
|
|
|
3198
|
|
|
3199 DEFSYMBOL (Qspecifierp);
|
|
|
3200
|
|
|
3201 DEFSYMBOL (Qconsole_type);
|
|
|
3202 DEFSYMBOL (Qdevice_class);
|
|
|
3203
|
|
|
3204 /* specifier types defined in general.c. */
|
|
428
|
3205
|
|
|
3206 DEFSUBR (Fvalid_specifier_type_p);
|
|
|
3207 DEFSUBR (Fspecifier_type_list);
|
|
|
3208 DEFSUBR (Fmake_specifier);
|
|
|
3209 DEFSUBR (Fspecifierp);
|
|
|
3210 DEFSUBR (Fspecifier_type);
|
|
|
3211
|
|
|
3212 DEFSUBR (Fvalid_specifier_locale_p);
|
|
|
3213 DEFSUBR (Fvalid_specifier_domain_p);
|
|
|
3214 DEFSUBR (Fvalid_specifier_locale_type_p);
|
|
|
3215 DEFSUBR (Fspecifier_locale_type_from_locale);
|
|
|
3216
|
|
|
3217 DEFSUBR (Fvalid_specifier_tag_p);
|
|
|
3218 DEFSUBR (Fvalid_specifier_tag_set_p);
|
|
|
3219 DEFSUBR (Fcanonicalize_tag_set);
|
|
|
3220 DEFSUBR (Fdevice_matches_specifier_tag_set_p);
|
|
|
3221 DEFSUBR (Fdefine_specifier_tag);
|
|
|
3222 DEFSUBR (Fdevice_matching_specifier_tag_list);
|
|
|
3223 DEFSUBR (Fspecifier_tag_list);
|
|
|
3224 DEFSUBR (Fspecifier_tag_predicate);
|
|
|
3225
|
|
|
3226 DEFSUBR (Fcheck_valid_instantiator);
|
|
|
3227 DEFSUBR (Fvalid_instantiator_p);
|
|
|
3228 DEFSUBR (Fcheck_valid_inst_list);
|
|
|
3229 DEFSUBR (Fvalid_inst_list_p);
|
|
|
3230 DEFSUBR (Fcheck_valid_spec_list);
|
|
|
3231 DEFSUBR (Fvalid_spec_list_p);
|
|
|
3232 DEFSUBR (Fadd_spec_to_specifier);
|
|
|
3233 DEFSUBR (Fadd_spec_list_to_specifier);
|
|
|
3234 DEFSUBR (Fspecifier_spec_list);
|
|
|
3235 DEFSUBR (Fspecifier_specs);
|
|
|
3236 DEFSUBR (Fremove_specifier);
|
|
|
3237 DEFSUBR (Fcopy_specifier);
|
|
|
3238
|
|
|
3239 DEFSUBR (Fcheck_valid_specifier_matchspec);
|
|
|
3240 DEFSUBR (Fvalid_specifier_matchspec_p);
|
|
|
3241 DEFSUBR (Fspecifier_fallback);
|
|
|
3242 DEFSUBR (Fspecifier_instance);
|
|
|
3243 DEFSUBR (Fspecifier_matching_instance);
|
|
|
3244 DEFSUBR (Fspecifier_instance_from_inst_list);
|
|
|
3245 DEFSUBR (Fspecifier_matching_instance_from_inst_list);
|
|
|
3246 DEFSUBR (Fset_specifier_dirty_flag);
|
|
|
3247
|
|
|
3248 DEFSUBR (Fgeneric_specifier_p);
|
|
|
3249 DEFSUBR (Finteger_specifier_p);
|
|
|
3250 DEFSUBR (Fnatnum_specifier_p);
|
|
|
3251 DEFSUBR (Fboolean_specifier_p);
|
|
|
3252 DEFSUBR (Fdisplay_table_specifier_p);
|
|
|
3253
|
|
|
3254 /* Symbols pertaining to specifier creation. Specifiers are created
|
|
|
3255 in the syms_of() functions. */
|
|
|
3256
|
|
|
3257 /* locales are defined in general.c. */
|
|
|
3258
|
|
442
|
3259 /* some how-to-add flags in general.c. */
|
|
|
3260 DEFSYMBOL (Qremove_tag_set_prepend);
|
|
|
3261 DEFSYMBOL (Qremove_tag_set_append);
|
|
|
3262 DEFSYMBOL (Qremove_locale);
|
|
|
3263 DEFSYMBOL (Qremove_locale_type);
|
|
|
3264
|
|
|
3265 DEFERROR_STANDARD (Qspecifier_syntax_error, Qsyntax_error);
|
|
|
3266 DEFERROR_STANDARD (Qspecifier_argument_error, Qinvalid_argument);
|
|
|
3267 DEFERROR_STANDARD (Qspecifier_change_error, Qinvalid_change);
|
|
428
|
3268 }
|
|
|
3269
|
|
|
3270 void
|
|
|
3271 specifier_type_create (void)
|
|
|
3272 {
|
|
|
3273 the_specifier_type_entry_dynarr = Dynarr_new (specifier_type_entry);
|
|
452
|
3274 dump_add_root_struct_ptr (&the_specifier_type_entry_dynarr, &sted_description);
|
|
428
|
3275
|
|
|
3276 Vspecifier_type_list = Qnil;
|
|
|
3277 staticpro (&Vspecifier_type_list);
|
|
|
3278
|
|
|
3279 INITIALIZE_SPECIFIER_TYPE (generic, "generic", "generic-specifier-p");
|
|
|
3280
|
|
|
3281 INITIALIZE_SPECIFIER_TYPE (integer, "integer", "integer-specifier-p");
|
|
|
3282
|
|
|
3283 SPECIFIER_HAS_METHOD (integer, validate);
|
|
|
3284
|
|
|
3285 INITIALIZE_SPECIFIER_TYPE (natnum, "natnum", "natnum-specifier-p");
|
|
|
3286
|
|
|
3287 SPECIFIER_HAS_METHOD (natnum, validate);
|
|
|
3288
|
|
|
3289 INITIALIZE_SPECIFIER_TYPE (boolean, "boolean", "boolean-specifier-p");
|
|
|
3290
|
|
|
3291 SPECIFIER_HAS_METHOD (boolean, validate);
|
|
|
3292
|
|
442
|
3293 INITIALIZE_SPECIFIER_TYPE (display_table, "display-table",
|
|
|
3294 "display-table-p");
|
|
428
|
3295
|
|
|
3296 SPECIFIER_HAS_METHOD (display_table, validate);
|
|
|
3297 }
|
|
|
3298
|
|
|
3299 void
|
|
|
3300 reinit_specifier_type_create (void)
|
|
|
3301 {
|
|
|
3302 REINITIALIZE_SPECIFIER_TYPE (generic);
|
|
|
3303 REINITIALIZE_SPECIFIER_TYPE (integer);
|
|
|
3304 REINITIALIZE_SPECIFIER_TYPE (natnum);
|
|
|
3305 REINITIALIZE_SPECIFIER_TYPE (boolean);
|
|
|
3306 REINITIALIZE_SPECIFIER_TYPE (display_table);
|
|
|
3307 }
|
|
|
3308
|
|
|
3309 void
|
|
|
3310 vars_of_specifier (void)
|
|
|
3311 {
|
|
|
3312 Vcached_specifiers = Qnil;
|
|
|
3313 staticpro (&Vcached_specifiers);
|
|
|
3314
|
|
|
3315 /* Do NOT mark through this, or specifiers will never be GC'd.
|
|
|
3316 This is the same deal as for weak hash tables. */
|
|
|
3317 Vall_specifiers = Qnil;
|
|
452
|
3318 dump_add_weak_object_chain (&Vall_specifiers);
|
|
428
|
3319
|
|
|
3320 Vuser_defined_tags = Qnil;
|
|
|
3321 staticpro (&Vuser_defined_tags);
|
|
|
3322
|
|
|
3323 Vunlock_ghost_specifiers = Qnil;
|
|
|
3324 staticpro (&Vunlock_ghost_specifiers);
|
|
|
3325 }
|
