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