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428
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1 /* Specifier implementation
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2 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois.
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3 Copyright (C) 1995, 1996 Ben Wing.
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4 Copyright (C) 1995 Sun Microsystems, Inc.
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5
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6 This file is part of XEmacs.
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7
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8 XEmacs is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 2, or (at your option) any
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11 later version.
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12
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13 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with XEmacs; see the file COPYING. If not, write to
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20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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21 Boston, MA 02111-1307, USA. */
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22
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23 /* Synched up with: Not in FSF. */
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24
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25 /* Design by Ben Wing;
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26 Original version by Chuck Thompson;
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27 rewritten by Ben Wing;
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28 Magic specifiers by Kirill Katsnelson;
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29 */
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30
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31 #include <config.h>
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32 #include "lisp.h"
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33
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34 #include "buffer.h"
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35 #include "device.h"
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36 #include "frame.h"
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37 #include "opaque.h"
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38 #include "specifier.h"
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39 #include "window.h"
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40 #include "chartab.h"
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41 #include "rangetab.h"
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42
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43 Lisp_Object Qspecifierp;
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442
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44 Lisp_Object Qremove_tag_set_prepend, Qremove_tag_set_append;
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45 Lisp_Object Qremove_locale, Qremove_locale_type;
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428
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46
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47 Lisp_Object Qconsole_type, Qdevice_class;
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48
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49 static Lisp_Object Vuser_defined_tags;
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50
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51 typedef struct specifier_type_entry specifier_type_entry;
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52 struct specifier_type_entry
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53 {
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54 Lisp_Object symbol;
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55 struct specifier_methods *meths;
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56 };
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57
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58 typedef struct
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59 {
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60 Dynarr_declare (specifier_type_entry);
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61 } specifier_type_entry_dynarr;
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62
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63 static specifier_type_entry_dynarr *the_specifier_type_entry_dynarr;
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64
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65 static const struct lrecord_description ste_description_1[] = {
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440
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66 { XD_LISP_OBJECT, offsetof (specifier_type_entry, symbol) },
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442
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67 { XD_STRUCT_PTR, offsetof (specifier_type_entry, meths), 1,
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68 &specifier_methods_description },
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428
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69 { XD_END }
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70 };
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71
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72 static const struct struct_description ste_description = {
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440
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73 sizeof (specifier_type_entry),
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428
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74 ste_description_1
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75 };
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76
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77 static const struct lrecord_description sted_description_1[] = {
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440
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78 XD_DYNARR_DESC (specifier_type_entry_dynarr, &ste_description),
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428
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79 { XD_END }
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80 };
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81
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82 static const struct struct_description sted_description = {
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440
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83 sizeof (specifier_type_entry_dynarr),
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428
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84 sted_description_1
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85 };
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86
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87 static Lisp_Object Vspecifier_type_list;
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88
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89 static Lisp_Object Vcached_specifiers;
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90 /* Do NOT mark through this, or specifiers will never be GC'd. */
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91 static Lisp_Object Vall_specifiers;
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92
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93 static Lisp_Object Vunlock_ghost_specifiers;
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94
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95 /* #### The purpose of this is to check for inheritance loops
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96 in specifiers that can inherit from other specifiers, but it's
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97 not yet implemented.
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98
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99 #### Look into this for 19.14. */
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100 /* static Lisp_Object_dynarr current_specifiers; */
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101
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102 static void recompute_cached_specifier_everywhere (Lisp_Object specifier);
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103
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104 EXFUN (Fspecifier_specs, 4);
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105 EXFUN (Fremove_specifier, 4);
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106
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107
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108 /************************************************************************/
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109 /* Specifier object methods */
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110 /************************************************************************/
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111
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112 /* Remove dead objects from the specified assoc list. */
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113
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114 static Lisp_Object
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115 cleanup_assoc_list (Lisp_Object list)
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116 {
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117 Lisp_Object loop, prev, retval;
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118
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119 loop = retval = list;
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120 prev = Qnil;
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121
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122 while (!NILP (loop))
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123 {
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124 Lisp_Object entry = XCAR (loop);
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125 Lisp_Object key = XCAR (entry);
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126
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127 /* remember, dead windows can become alive again. */
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128 if (!WINDOWP (key) && object_dead_p (key))
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129 {
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130 if (NILP (prev))
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131 {
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132 /* Removing the head. */
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133 retval = XCDR (retval);
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134 }
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135 else
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136 {
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137 Fsetcdr (prev, XCDR (loop));
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138 }
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139 }
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140 else
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141 prev = loop;
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142
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143 loop = XCDR (loop);
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144 }
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145
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146 return retval;
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147 }
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148
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149 /* Remove dead objects from the various lists so that they
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150 don't keep getting marked as long as this specifier exists and
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151 therefore wasting memory. */
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152
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153 void
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154 cleanup_specifiers (void)
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155 {
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156 Lisp_Object rest;
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157
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158 for (rest = Vall_specifiers;
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159 !NILP (rest);
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160 rest = XSPECIFIER (rest)->next_specifier)
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161 {
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440
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162 Lisp_Specifier *sp = XSPECIFIER (rest);
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428
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163 /* This effectively changes the specifier specs.
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164 However, there's no need to call
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165 recompute_cached_specifier_everywhere() or the
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166 after-change methods because the only specs we
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167 are removing are for dead objects, and they can
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168 never have any effect on the specifier values:
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169 specifiers can only be instantiated over live
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170 objects, and you can't derive a dead object
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171 from a live one. */
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172 sp->device_specs = cleanup_assoc_list (sp->device_specs);
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173 sp->frame_specs = cleanup_assoc_list (sp->frame_specs);
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174 sp->buffer_specs = cleanup_assoc_list (sp->buffer_specs);
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175 /* windows are handled specially because dead windows
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176 can be resurrected */
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177 }
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178 }
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179
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180 void
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181 kill_specifier_buffer_locals (Lisp_Object buffer)
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182 {
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183 Lisp_Object rest;
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184
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185 for (rest = Vall_specifiers;
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186 !NILP (rest);
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187 rest = XSPECIFIER (rest)->next_specifier)
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188 {
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440
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189 Lisp_Specifier *sp = XSPECIFIER (rest);
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428
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190
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191 /* Make sure we're actually going to be changing something.
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192 Fremove_specifier() always calls
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193 recompute_cached_specifier_everywhere() (#### but should
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194 be smarter about this). */
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195 if (!NILP (assq_no_quit (buffer, sp->buffer_specs)))
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196 Fremove_specifier (rest, buffer, Qnil, Qnil);
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197 }
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198 }
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199
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200 static Lisp_Object
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201 mark_specifier (Lisp_Object obj)
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202 {
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440
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203 Lisp_Specifier *specifier = XSPECIFIER (obj);
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428
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204
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205 mark_object (specifier->global_specs);
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206 mark_object (specifier->device_specs);
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207 mark_object (specifier->frame_specs);
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208 mark_object (specifier->window_specs);
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209 mark_object (specifier->buffer_specs);
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210 mark_object (specifier->magic_parent);
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211 mark_object (specifier->fallback);
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212 if (!GHOST_SPECIFIER_P (XSPECIFIER (obj)))
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213 MAYBE_SPECMETH (specifier, mark, (obj));
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214 return Qnil;
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215 }
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216
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217 /* The idea here is that the specifier specs point to locales
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218 (windows, buffers, frames, and devices), and we want to make sure
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219 that the specs disappear automatically when the associated locale
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220 is no longer in use. For all but windows, "no longer in use"
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221 corresponds exactly to when the object is deleted (non-deleted
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222 objects are always held permanently in special lists, and deleted
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223 objects are never on these lists and never reusable). To handle
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224 this, we just have cleanup_specifiers() called periodically
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225 (at the beginning of garbage collection); it removes all dead
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226 objects.
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227
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228 For windows, however, it's trickier because dead objects can be
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229 converted to live ones again if the dead object is in a window
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230 configuration. Therefore, for windows, "no longer in use"
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231 corresponds to when the window object is garbage-collected.
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232 We now use weak lists for this purpose.
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233
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234 */
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235
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236 void
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237 prune_specifiers (void)
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238 {
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239 Lisp_Object rest, prev = Qnil;
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240
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241 for (rest = Vall_specifiers;
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242 !NILP (rest);
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243 rest = XSPECIFIER (rest)->next_specifier)
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244 {
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245 if (! marked_p (rest))
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246 {
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440
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247 Lisp_Specifier* sp = XSPECIFIER (rest);
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428
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248 /* A bit of assertion that we're removing both parts of the
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249 magic one altogether */
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250 assert (!MAGIC_SPECIFIER_P(sp)
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251 || (BODILY_SPECIFIER_P(sp) && marked_p (sp->fallback))
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252 || (GHOST_SPECIFIER_P(sp) && marked_p (sp->magic_parent)));
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253 /* This specifier is garbage. Remove it from the list. */
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254 if (NILP (prev))
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255 Vall_specifiers = sp->next_specifier;
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256 else
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257 XSPECIFIER (prev)->next_specifier = sp->next_specifier;
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258 }
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259 else
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260 prev = rest;
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261 }
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262 }
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263
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264 static void
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265 print_specifier (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
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266 {
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440
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267 Lisp_Specifier *sp = XSPECIFIER (obj);
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428
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268 char buf[100];
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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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276 sprintf (buf, "#<%s-specifier global=", sp->methods->name);
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277 write_c_string (buf, printcharfun);
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278 specbind (Qprint_string_length, make_int (100));
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279 specbind (Qprint_length, make_int (5));
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280 the_specs = Fspecifier_specs (obj, Qglobal, Qnil, Qnil);
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281 if (NILP (the_specs))
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282 /* there are no global specs */
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283 write_c_string ("<unspecified>", printcharfun);
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284 else
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285 print_internal (the_specs, printcharfun, 1);
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286 if (!NILP (sp->fallback))
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287 {
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288 write_c_string (" fallback=", printcharfun);
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289 print_internal (sp->fallback, printcharfun, escapeflag);
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290 }
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291 unbind_to (count, Qnil);
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292 sprintf (buf, " 0x%x>", sp->header.uid);
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293 write_c_string (buf, printcharfun);
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294 }
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295
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296 static void
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297 finalize_specifier (void *header, int for_disksave)
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298 {
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440
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299 Lisp_Specifier *sp = (Lisp_Specifier *) header;
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428
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300 /* don't be snafued by the disksave finalization. */
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301 if (!for_disksave && !GHOST_SPECIFIER_P(sp) && sp->caching)
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302 {
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303 xfree (sp->caching);
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304 sp->caching = 0;
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305 }
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306 }
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307
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308 static int
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309 specifier_equal (Lisp_Object obj1, Lisp_Object obj2, int depth)
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310 {
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440
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311 Lisp_Specifier *s1 = XSPECIFIER (obj1);
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312 Lisp_Specifier *s2 = XSPECIFIER (obj2);
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428
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313 int retval;
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314 Lisp_Object old_inhibit_quit = Vinhibit_quit;
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315
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316 /* This function can be called from within redisplay.
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317 internal_equal can trigger a quit. That leads to Bad Things. */
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318 Vinhibit_quit = Qt;
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319
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320 depth++;
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321 retval =
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322 (s1->methods == s2->methods &&
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323 internal_equal (s1->global_specs, s2->global_specs, depth) &&
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324 internal_equal (s1->device_specs, s2->device_specs, depth) &&
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325 internal_equal (s1->frame_specs, s2->frame_specs, depth) &&
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326 internal_equal (s1->window_specs, s2->window_specs, depth) &&
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327 internal_equal (s1->buffer_specs, s2->buffer_specs, depth) &&
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328 internal_equal (s1->fallback, s2->fallback, depth));
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329
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330 if (retval && HAS_SPECMETH_P (s1, equal))
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331 retval = SPECMETH (s1, equal, (obj1, obj2, depth - 1));
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332
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333 Vinhibit_quit = old_inhibit_quit;
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334 return retval;
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335 }
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336
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337 static unsigned long
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338 specifier_hash (Lisp_Object obj, int depth)
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339 {
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440
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340 Lisp_Specifier *s = XSPECIFIER (obj);
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428
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341
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342 /* specifier hashing is a bit problematic because there are so
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343 many places where data can be stored. We pick what are perhaps
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344 the most likely places where interesting stuff will be. */
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345 return HASH5 ((HAS_SPECMETH_P (s, hash) ?
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346 SPECMETH (s, hash, (obj, depth)) : 0),
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347 (unsigned long) s->methods,
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348 internal_hash (s->global_specs, depth + 1),
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349 internal_hash (s->frame_specs, depth + 1),
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350 internal_hash (s->buffer_specs, depth + 1));
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351 }
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352
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456
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353 inline static size_t
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354 aligned_sizeof_specifier (size_t specifier_type_specific_size)
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355 {
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356 return ALIGN_SIZE (offsetof (Lisp_Specifier, data)
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357 + specifier_type_specific_size,
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358 ALIGNOF (max_align_t));
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359 }
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360
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428
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361 static size_t
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442
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362 sizeof_specifier (const void *header)
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|
428
|
363 {
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456
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364 const Lisp_Specifier *p = (const Lisp_Specifier *) header;
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365 return aligned_sizeof_specifier (GHOST_SPECIFIER_P (p)
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366 ? 0
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|
367 : p->methods->extra_data_size);
|
|
428
|
368 }
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|
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369
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|
|
370 static const struct lrecord_description specifier_methods_description_1[] = {
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|
440
|
371 { XD_LISP_OBJECT, offsetof (struct specifier_methods, predicate_symbol) },
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428
|
372 { XD_END }
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|
|
373 };
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|
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374
|
|
|
375 const struct struct_description specifier_methods_description = {
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|
440
|
376 sizeof (struct specifier_methods),
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|
428
|
377 specifier_methods_description_1
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|
|
378 };
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|
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379
|
|
|
380 static const struct lrecord_description specifier_caching_description_1[] = {
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|
|
381 { XD_END }
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|
|
382 };
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|
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383
|
|
|
384 static const struct struct_description specifier_caching_description = {
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|
440
|
385 sizeof (struct specifier_caching),
|
|
428
|
386 specifier_caching_description_1
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|
|
387 };
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|
|
388
|
|
|
389 static const struct lrecord_description specifier_description[] = {
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|
442
|
390 { XD_STRUCT_PTR, offsetof (Lisp_Specifier, methods), 1,
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|
|
391 &specifier_methods_description },
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|
440
|
392 { XD_LO_LINK, offsetof (Lisp_Specifier, next_specifier) },
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|
|
393 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, global_specs) },
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|
|
394 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, device_specs) },
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|
|
395 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, frame_specs) },
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|
|
396 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, window_specs) },
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|
|
397 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, buffer_specs) },
|
|
442
|
398 { XD_STRUCT_PTR, offsetof (Lisp_Specifier, caching), 1,
|
|
|
399 &specifier_caching_description },
|
|
440
|
400 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, magic_parent) },
|
|
|
401 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, fallback) },
|
|
428
|
402 { XD_SPECIFIER_END }
|
|
|
403 };
|
|
|
404
|
|
|
405 const struct lrecord_description specifier_empty_extra_description[] = {
|
|
|
406 { XD_END }
|
|
|
407 };
|
|
|
408
|
|
|
409 DEFINE_LRECORD_SEQUENCE_IMPLEMENTATION ("specifier", specifier,
|
|
|
410 mark_specifier, print_specifier,
|
|
|
411 finalize_specifier,
|
|
|
412 specifier_equal, specifier_hash,
|
|
|
413 specifier_description,
|
|
|
414 sizeof_specifier,
|
|
440
|
415 Lisp_Specifier);
|
|
428
|
416
|
|
|
417 /************************************************************************/
|
|
|
418 /* Creating specifiers */
|
|
|
419 /************************************************************************/
|
|
|
420
|
|
|
421 static struct specifier_methods *
|
|
|
422 decode_specifier_type (Lisp_Object type, Error_behavior errb)
|
|
|
423 {
|
|
|
424 int i;
|
|
|
425
|
|
|
426 for (i = 0; i < Dynarr_length (the_specifier_type_entry_dynarr); i++)
|
|
|
427 {
|
|
|
428 if (EQ (type, Dynarr_at (the_specifier_type_entry_dynarr, i).symbol))
|
|
|
429 return Dynarr_at (the_specifier_type_entry_dynarr, i).meths;
|
|
|
430 }
|
|
|
431
|
|
563
|
432 maybe_invalid_argument ("Invalid specifier type",
|
|
442
|
433 type, Qspecifier, errb);
|
|
428
|
434
|
|
|
435 return 0;
|
|
|
436 }
|
|
|
437
|
|
|
438 static int
|
|
|
439 valid_specifier_type_p (Lisp_Object type)
|
|
|
440 {
|
|
|
441 return decode_specifier_type (type, ERROR_ME_NOT) != 0;
|
|
|
442 }
|
|
|
443
|
|
|
444 DEFUN ("valid-specifier-type-p", Fvalid_specifier_type_p, 1, 1, 0, /*
|
|
|
445 Given a SPECIFIER-TYPE, return non-nil if it is valid.
|
|
|
446 Valid types are 'generic, 'integer, boolean, 'color, 'font, 'image,
|
|
|
447 'face-boolean, and 'toolbar.
|
|
|
448 */
|
|
|
449 (specifier_type))
|
|
|
450 {
|
|
|
451 return valid_specifier_type_p (specifier_type) ? Qt : Qnil;
|
|
|
452 }
|
|
|
453
|
|
|
454 DEFUN ("specifier-type-list", Fspecifier_type_list, 0, 0, 0, /*
|
|
|
455 Return a list of valid specifier types.
|
|
|
456 */
|
|
|
457 ())
|
|
|
458 {
|
|
|
459 return Fcopy_sequence (Vspecifier_type_list);
|
|
|
460 }
|
|
|
461
|
|
|
462 void
|
|
|
463 add_entry_to_specifier_type_list (Lisp_Object symbol,
|
|
|
464 struct specifier_methods *meths)
|
|
|
465 {
|
|
|
466 struct specifier_type_entry entry;
|
|
|
467
|
|
|
468 entry.symbol = symbol;
|
|
|
469 entry.meths = meths;
|
|
|
470 Dynarr_add (the_specifier_type_entry_dynarr, entry);
|
|
|
471 Vspecifier_type_list = Fcons (symbol, Vspecifier_type_list);
|
|
|
472 }
|
|
|
473
|
|
|
474 static Lisp_Object
|
|
|
475 make_specifier_internal (struct specifier_methods *spec_meths,
|
|
|
476 size_t data_size, int call_create_meth)
|
|
|
477 {
|
|
|
478 Lisp_Object specifier;
|
|
440
|
479 Lisp_Specifier *sp = (Lisp_Specifier *)
|
|
456
|
480 alloc_lcrecord (aligned_sizeof_specifier (data_size), &lrecord_specifier);
|
|
428
|
481
|
|
|
482 sp->methods = spec_meths;
|
|
|
483 sp->global_specs = Qnil;
|
|
|
484 sp->device_specs = Qnil;
|
|
|
485 sp->frame_specs = Qnil;
|
|
|
486 sp->window_specs = make_weak_list (WEAK_LIST_KEY_ASSOC);
|
|
|
487 sp->buffer_specs = Qnil;
|
|
|
488 sp->fallback = Qnil;
|
|
|
489 sp->magic_parent = Qnil;
|
|
|
490 sp->caching = 0;
|
|
|
491 sp->next_specifier = Vall_specifiers;
|
|
|
492
|
|
|
493 XSETSPECIFIER (specifier, sp);
|
|
|
494 Vall_specifiers = specifier;
|
|
|
495
|
|
|
496 if (call_create_meth)
|
|
|
497 {
|
|
|
498 struct gcpro gcpro1;
|
|
|
499 GCPRO1 (specifier);
|
|
|
500 MAYBE_SPECMETH (XSPECIFIER (specifier), create, (specifier));
|
|
|
501 UNGCPRO;
|
|
|
502 }
|
|
|
503 return specifier;
|
|
|
504 }
|
|
|
505
|
|
|
506 static Lisp_Object
|
|
|
507 make_specifier (struct specifier_methods *meths)
|
|
|
508 {
|
|
|
509 return make_specifier_internal (meths, meths->extra_data_size, 1);
|
|
|
510 }
|
|
|
511
|
|
|
512 Lisp_Object
|
|
|
513 make_magic_specifier (Lisp_Object type)
|
|
|
514 {
|
|
|
515 /* This function can GC */
|
|
|
516 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
517 Lisp_Object bodily, ghost;
|
|
|
518 struct gcpro gcpro1;
|
|
|
519
|
|
|
520 bodily = make_specifier (meths);
|
|
|
521 GCPRO1 (bodily);
|
|
|
522 ghost = make_specifier_internal (meths, 0, 0);
|
|
|
523 UNGCPRO;
|
|
|
524
|
|
|
525 /* Connect guys together */
|
|
|
526 XSPECIFIER(bodily)->magic_parent = Qt;
|
|
|
527 XSPECIFIER(bodily)->fallback = ghost;
|
|
|
528 XSPECIFIER(ghost)->magic_parent = bodily;
|
|
|
529
|
|
|
530 return bodily;
|
|
|
531 }
|
|
|
532
|
|
|
533 DEFUN ("make-specifier", Fmake_specifier, 1, 1, 0, /*
|
|
|
534 Return a new specifier object of type TYPE.
|
|
|
535
|
|
|
536 A specifier is an object that can be used to keep track of a property
|
|
|
537 whose value can be per-buffer, per-window, per-frame, or per-device,
|
|
442
|
538 and can further be restricted to a particular console-type or
|
|
|
539 device-class. Specifiers are used, for example, for the various
|
|
|
540 built-in properties of a face; this allows a face to have different
|
|
|
541 values in different frames, buffers, etc.
|
|
|
542
|
|
|
543 When speaking of the value of a specifier, it is important to
|
|
|
544 distinguish between the *setting* of a specifier, called an
|
|
|
545 \"instantiator\", and the *actual value*, called an \"instance\". You
|
|
|
546 put various possible instantiators (i.e. settings) into a specifier
|
|
|
547 and associate them with particular locales (buffer, window, frame,
|
|
|
548 device, global), and then the instance (i.e. actual value) is
|
|
|
549 retrieved in a specific domain (window, frame, device) by looking
|
|
|
550 through the possible instantiators (i.e. settings). This process is
|
|
|
551 called \"instantiation\".
|
|
444
|
552
|
|
442
|
553 To put settings into a specifier, use `set-specifier', or the
|
|
|
554 lower-level functions `add-spec-to-specifier' and
|
|
|
555 `add-spec-list-to-specifier'. You can also temporarily bind a setting
|
|
|
556 to a specifier using `let-specifier'. To retrieve settings, use
|
|
|
557 `specifier-specs', or its lower-level counterpart
|
|
|
558 `specifier-spec-list'. To determine the actual value, use
|
|
|
559 `specifier-instance'.
|
|
|
560
|
|
|
561 For more information, see `set-specifier', `specifier-instance',
|
|
428
|
562 `specifier-specs', and `add-spec-to-specifier'; or, for a detailed
|
|
442
|
563 description of specifiers, including how exactly the instantiation
|
|
|
564 process works, see the chapter on specifiers in the XEmacs Lisp
|
|
|
565 Reference Manual.
|
|
428
|
566
|
|
|
567 TYPE specifies the particular type of specifier, and should be one of
|
|
442
|
568 the symbols 'generic, 'integer, 'natnum, 'boolean, 'color, 'font,
|
|
|
569 'image, 'face-boolean, 'display-table, 'gutter, 'gutter-size,
|
|
|
570 'gutter-visible or 'toolbar.
|
|
|
571
|
|
|
572 For more information on particular types of specifiers, see the
|
|
|
573 functions `make-generic-specifier', `make-integer-specifier',
|
|
|
574 `make-natnum-specifier', `make-boolean-specifier',
|
|
|
575 `make-color-specifier', `make-font-specifier', `make-image-specifier',
|
|
|
576 `make-face-boolean-specifier', `make-gutter-size-specifier',
|
|
|
577 `make-gutter-visible-specifier', `default-toolbar', `default-gutter',
|
|
|
578 and `current-display-table'.
|
|
428
|
579 */
|
|
|
580 (type))
|
|
|
581 {
|
|
|
582 /* This function can GC */
|
|
442
|
583 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
428
|
584
|
|
|
585 return make_specifier (meths);
|
|
|
586 }
|
|
|
587
|
|
|
588 DEFUN ("specifierp", Fspecifierp, 1, 1, 0, /*
|
|
|
589 Return t if OBJECT is a specifier.
|
|
|
590
|
|
|
591 A specifier is an object that can be used to keep track of a property
|
|
|
592 whose value can be per-buffer, per-window, per-frame, or per-device,
|
|
|
593 and can further be restricted to a particular console-type or device-class.
|
|
|
594 See `make-specifier'.
|
|
|
595 */
|
|
|
596 (object))
|
|
|
597 {
|
|
|
598 return SPECIFIERP (object) ? Qt : Qnil;
|
|
|
599 }
|
|
|
600
|
|
|
601 DEFUN ("specifier-type", Fspecifier_type, 1, 1, 0, /*
|
|
|
602 Return the type of SPECIFIER.
|
|
|
603 */
|
|
|
604 (specifier))
|
|
|
605 {
|
|
|
606 CHECK_SPECIFIER (specifier);
|
|
|
607 return intern (XSPECIFIER (specifier)->methods->name);
|
|
|
608 }
|
|
|
609
|
|
|
610
|
|
|
611 /************************************************************************/
|
|
|
612 /* Locales and domains */
|
|
|
613 /************************************************************************/
|
|
|
614
|
|
|
615 DEFUN ("valid-specifier-locale-p", Fvalid_specifier_locale_p, 1, 1, 0, /*
|
|
|
616 Return t if LOCALE is a valid specifier locale.
|
|
|
617 Valid locales are devices, frames, windows, buffers, and 'global.
|
|
|
618 \(nil is not valid.)
|
|
|
619 */
|
|
|
620 (locale))
|
|
|
621 {
|
|
|
622 /* This cannot GC. */
|
|
|
623 return ((DEVICEP (locale) && DEVICE_LIVE_P (XDEVICE (locale))) ||
|
|
|
624 (FRAMEP (locale) && FRAME_LIVE_P (XFRAME (locale))) ||
|
|
|
625 (BUFFERP (locale) && BUFFER_LIVE_P (XBUFFER (locale))) ||
|
|
|
626 /* dead windows are allowed because they may become live
|
|
|
627 windows again when a window configuration is restored */
|
|
|
628 WINDOWP (locale) ||
|
|
|
629 EQ (locale, Qglobal))
|
|
|
630 ? Qt : Qnil;
|
|
|
631 }
|
|
|
632
|
|
|
633 DEFUN ("valid-specifier-domain-p", Fvalid_specifier_domain_p, 1, 1, 0, /*
|
|
|
634 Return t if DOMAIN is a valid specifier domain.
|
|
|
635 A domain is used to instance a specifier (i.e. determine the specifier's
|
|
442
|
636 value in that domain). Valid domains are image instances, windows, frames,
|
|
|
637 and devices. \(nil is not valid.) image instances are pseudo-domains since
|
|
|
638 instantiation will actually occur in the window the image instance itself is
|
|
|
639 instantiated in.
|
|
428
|
640 */
|
|
|
641 (domain))
|
|
|
642 {
|
|
|
643 /* This cannot GC. */
|
|
|
644 return ((DEVICEP (domain) && DEVICE_LIVE_P (XDEVICE (domain))) ||
|
|
|
645 (FRAMEP (domain) && FRAME_LIVE_P (XFRAME (domain))) ||
|
|
442
|
646 (WINDOWP (domain) && WINDOW_LIVE_P (XWINDOW (domain))) ||
|
|
|
647 /* #### get image instances out of domains! */
|
|
|
648 IMAGE_INSTANCEP (domain))
|
|
428
|
649 ? Qt : Qnil;
|
|
|
650 }
|
|
|
651
|
|
442
|
652 DEFUN ("valid-specifier-locale-type-p", Fvalid_specifier_locale_type_p, 1, 1, 0,
|
|
|
653 /*
|
|
428
|
654 Given a specifier LOCALE-TYPE, return non-nil if it is valid.
|
|
|
655 Valid locale types are 'global, 'device, 'frame, 'window, and 'buffer.
|
|
|
656 \(Note, however, that in functions that accept either a locale or a locale
|
|
|
657 type, 'global is considered an individual locale.)
|
|
|
658 */
|
|
|
659 (locale_type))
|
|
|
660 {
|
|
|
661 /* This cannot GC. */
|
|
|
662 return (EQ (locale_type, Qglobal) ||
|
|
|
663 EQ (locale_type, Qdevice) ||
|
|
|
664 EQ (locale_type, Qframe) ||
|
|
|
665 EQ (locale_type, Qwindow) ||
|
|
|
666 EQ (locale_type, Qbuffer)) ? Qt : Qnil;
|
|
|
667 }
|
|
|
668
|
|
|
669 static void
|
|
|
670 check_valid_locale_or_locale_type (Lisp_Object locale)
|
|
|
671 {
|
|
|
672 /* This cannot GC. */
|
|
|
673 if (EQ (locale, Qall) ||
|
|
|
674 !NILP (Fvalid_specifier_locale_p (locale)) ||
|
|
|
675 !NILP (Fvalid_specifier_locale_type_p (locale)))
|
|
|
676 return;
|
|
563
|
677 invalid_argument ("Invalid specifier locale or locale type", locale);
|
|
428
|
678 }
|
|
|
679
|
|
|
680 DEFUN ("specifier-locale-type-from-locale", Fspecifier_locale_type_from_locale,
|
|
|
681 1, 1, 0, /*
|
|
|
682 Given a specifier LOCALE, return its type.
|
|
|
683 */
|
|
|
684 (locale))
|
|
|
685 {
|
|
|
686 /* This cannot GC. */
|
|
|
687 if (NILP (Fvalid_specifier_locale_p (locale)))
|
|
563
|
688 invalid_argument ("Invalid specifier locale",
|
|
442
|
689 locale);
|
|
428
|
690 if (DEVICEP (locale)) return Qdevice;
|
|
|
691 if (FRAMEP (locale)) return Qframe;
|
|
|
692 if (WINDOWP (locale)) return Qwindow;
|
|
|
693 if (BUFFERP (locale)) return Qbuffer;
|
|
|
694 assert (EQ (locale, Qglobal));
|
|
|
695 return Qglobal;
|
|
|
696 }
|
|
|
697
|
|
|
698 static Lisp_Object
|
|
|
699 decode_locale (Lisp_Object locale)
|
|
|
700 {
|
|
|
701 /* This cannot GC. */
|
|
|
702 if (NILP (locale))
|
|
|
703 return Qglobal;
|
|
|
704 else if (!NILP (Fvalid_specifier_locale_p (locale)))
|
|
|
705 return locale;
|
|
|
706 else
|
|
563
|
707 invalid_argument ("Invalid specifier locale",
|
|
442
|
708 locale);
|
|
428
|
709
|
|
|
710 return Qnil;
|
|
|
711 }
|
|
|
712
|
|
|
713 static enum spec_locale_type
|
|
|
714 decode_locale_type (Lisp_Object locale_type)
|
|
|
715 {
|
|
|
716 /* This cannot GC. */
|
|
|
717 if (EQ (locale_type, Qglobal)) return LOCALE_GLOBAL;
|
|
|
718 if (EQ (locale_type, Qdevice)) return LOCALE_DEVICE;
|
|
|
719 if (EQ (locale_type, Qframe)) return LOCALE_FRAME;
|
|
|
720 if (EQ (locale_type, Qwindow)) return LOCALE_WINDOW;
|
|
|
721 if (EQ (locale_type, Qbuffer)) return LOCALE_BUFFER;
|
|
|
722
|
|
563
|
723 invalid_argument ("Invalid specifier locale type",
|
|
442
|
724 locale_type);
|
|
428
|
725 return LOCALE_GLOBAL; /* not reached */
|
|
|
726 }
|
|
|
727
|
|
|
728 Lisp_Object
|
|
|
729 decode_locale_list (Lisp_Object locale)
|
|
|
730 {
|
|
|
731 /* This cannot GC. */
|
|
|
732 /* The return value of this function must be GCPRO'd. */
|
|
|
733 if (NILP (locale))
|
|
|
734 {
|
|
|
735 return list1 (Qall);
|
|
|
736 }
|
|
|
737 else if (CONSP (locale))
|
|
|
738 {
|
|
|
739 EXTERNAL_LIST_LOOP_2 (elt, locale)
|
|
|
740 check_valid_locale_or_locale_type (elt);
|
|
|
741 return locale;
|
|
|
742 }
|
|
|
743 else
|
|
|
744 {
|
|
|
745 check_valid_locale_or_locale_type (locale);
|
|
|
746 return list1 (locale);
|
|
|
747 }
|
|
|
748 }
|
|
|
749
|
|
|
750 static enum spec_locale_type
|
|
|
751 locale_type_from_locale (Lisp_Object locale)
|
|
|
752 {
|
|
|
753 return decode_locale_type (Fspecifier_locale_type_from_locale (locale));
|
|
|
754 }
|
|
|
755
|
|
|
756 static void
|
|
|
757 check_valid_domain (Lisp_Object domain)
|
|
|
758 {
|
|
|
759 if (NILP (Fvalid_specifier_domain_p (domain)))
|
|
563
|
760 invalid_argument ("Invalid specifier domain",
|
|
442
|
761 domain);
|
|
428
|
762 }
|
|
|
763
|
|
442
|
764 Lisp_Object
|
|
428
|
765 decode_domain (Lisp_Object domain)
|
|
|
766 {
|
|
|
767 if (NILP (domain))
|
|
|
768 return Fselected_window (Qnil);
|
|
|
769 check_valid_domain (domain);
|
|
|
770 return domain;
|
|
|
771 }
|
|
|
772
|
|
|
773
|
|
|
774 /************************************************************************/
|
|
|
775 /* Tags */
|
|
|
776 /************************************************************************/
|
|
|
777
|
|
|
778 DEFUN ("valid-specifier-tag-p", Fvalid_specifier_tag_p, 1, 1, 0, /*
|
|
|
779 Return non-nil if TAG is a valid specifier tag.
|
|
|
780 See also `valid-specifier-tag-set-p'.
|
|
|
781 */
|
|
|
782 (tag))
|
|
|
783 {
|
|
|
784 return (valid_console_type_p (tag) ||
|
|
|
785 valid_device_class_p (tag) ||
|
|
|
786 !NILP (assq_no_quit (tag, Vuser_defined_tags))) ? Qt : Qnil;
|
|
|
787 }
|
|
|
788
|
|
|
789 DEFUN ("valid-specifier-tag-set-p", Fvalid_specifier_tag_set_p, 1, 1, 0, /*
|
|
|
790 Return non-nil if TAG-SET is a valid specifier tag set.
|
|
|
791
|
|
|
792 A specifier tag set is an entity that is attached to an instantiator
|
|
|
793 and can be used to restrict the scope of that instantiator to a
|
|
|
794 particular device class or device type and/or to mark instantiators
|
|
|
795 added by a particular package so that they can be later removed.
|
|
|
796
|
|
|
797 A specifier tag set consists of a list of zero of more specifier tags,
|
|
|
798 each of which is a symbol that is recognized by XEmacs as a tag.
|
|
|
799 \(The valid device types and device classes are always tags, as are
|
|
|
800 any tags defined by `define-specifier-tag'.) It is called a "tag set"
|
|
|
801 \(as opposed to a list) because the order of the tags or the number of
|
|
|
802 times a particular tag occurs does not matter.
|
|
|
803
|
|
|
804 Each tag has a predicate associated with it, which specifies whether
|
|
|
805 that tag applies to a particular device. The tags which are device types
|
|
|
806 and classes match devices of that type or class. User-defined tags can
|
|
|
807 have any predicate, or none (meaning that all devices match). When
|
|
|
808 attempting to instance a specifier, a particular instantiator is only
|
|
|
809 considered if the device of the domain being instanced over matches
|
|
|
810 all tags in the tag set attached to that instantiator.
|
|
|
811
|
|
|
812 Most of the time, a tag set is not specified, and the instantiator
|
|
|
813 gets a null tag set, which matches all devices.
|
|
|
814 */
|
|
|
815 (tag_set))
|
|
|
816 {
|
|
|
817 Lisp_Object rest;
|
|
|
818
|
|
|
819 for (rest = tag_set; !NILP (rest); rest = XCDR (rest))
|
|
|
820 {
|
|
|
821 if (!CONSP (rest))
|
|
|
822 return Qnil;
|
|
|
823 if (NILP (Fvalid_specifier_tag_p (XCAR (rest))))
|
|
|
824 return Qnil;
|
|
|
825 QUIT;
|
|
|
826 }
|
|
|
827 return Qt;
|
|
|
828 }
|
|
|
829
|
|
|
830 Lisp_Object
|
|
|
831 decode_specifier_tag_set (Lisp_Object tag_set)
|
|
|
832 {
|
|
|
833 /* The return value of this function must be GCPRO'd. */
|
|
|
834 if (!NILP (Fvalid_specifier_tag_p (tag_set)))
|
|
|
835 return list1 (tag_set);
|
|
|
836 if (NILP (Fvalid_specifier_tag_set_p (tag_set)))
|
|
563
|
837 invalid_argument ("Invalid specifier tag-set",
|
|
442
|
838 tag_set);
|
|
428
|
839 return tag_set;
|
|
|
840 }
|
|
|
841
|
|
|
842 static Lisp_Object
|
|
|
843 canonicalize_tag_set (Lisp_Object tag_set)
|
|
|
844 {
|
|
|
845 int len = XINT (Flength (tag_set));
|
|
|
846 Lisp_Object *tags, rest;
|
|
|
847 int i, j;
|
|
|
848
|
|
|
849 /* We assume in this function that the tag_set has already been
|
|
|
850 validated, so there are no surprises. */
|
|
|
851
|
|
|
852 if (len == 0 || len == 1)
|
|
|
853 /* most common case */
|
|
|
854 return tag_set;
|
|
|
855
|
|
|
856 tags = alloca_array (Lisp_Object, len);
|
|
|
857
|
|
|
858 i = 0;
|
|
|
859 LIST_LOOP (rest, tag_set)
|
|
|
860 tags[i++] = XCAR (rest);
|
|
|
861
|
|
|
862 /* Sort the list of tags. We use a bubble sort here (copied from
|
|
|
863 extent_fragment_update()) -- reduces the function call overhead,
|
|
|
864 and is the fastest sort for small numbers of items. */
|
|
|
865
|
|
|
866 for (i = 1; i < len; i++)
|
|
|
867 {
|
|
|
868 j = i - 1;
|
|
|
869 while (j >= 0 &&
|
|
|
870 strcmp ((char *) string_data (XSYMBOL (tags[j])->name),
|
|
|
871 (char *) string_data (XSYMBOL (tags[j+1])->name)) > 0)
|
|
|
872 {
|
|
|
873 Lisp_Object tmp = tags[j];
|
|
|
874 tags[j] = tags[j+1];
|
|
|
875 tags[j+1] = tmp;
|
|
|
876 j--;
|
|
|
877 }
|
|
|
878 }
|
|
|
879
|
|
|
880 /* Now eliminate duplicates. */
|
|
|
881
|
|
|
882 for (i = 1, j = 1; i < len; i++)
|
|
|
883 {
|
|
|
884 /* j holds the destination, i the source. */
|
|
|
885 if (!EQ (tags[i], tags[i-1]))
|
|
|
886 tags[j++] = tags[i];
|
|
|
887 }
|
|
|
888
|
|
|
889 return Flist (j, tags);
|
|
|
890 }
|
|
|
891
|
|
|
892 DEFUN ("canonicalize-tag-set", Fcanonicalize_tag_set, 1, 1, 0, /*
|
|
|
893 Canonicalize the given tag set.
|
|
|
894 Two canonicalized tag sets can be compared with `equal' to see if they
|
|
|
895 represent the same tag set. (Specifically, canonicalizing involves
|
|
|
896 sorting by symbol name and removing duplicates.)
|
|
|
897 */
|
|
|
898 (tag_set))
|
|
|
899 {
|
|
|
900 if (NILP (Fvalid_specifier_tag_set_p (tag_set)))
|
|
563
|
901 invalid_argument ("Invalid tag set", tag_set);
|
|
428
|
902 return canonicalize_tag_set (tag_set);
|
|
|
903 }
|
|
|
904
|
|
|
905 static int
|
|
|
906 device_matches_specifier_tag_set_p (Lisp_Object device, Lisp_Object tag_set)
|
|
|
907 {
|
|
|
908 Lisp_Object devtype, devclass, rest;
|
|
|
909 struct device *d = XDEVICE (device);
|
|
|
910
|
|
|
911 devtype = DEVICE_TYPE (d);
|
|
|
912 devclass = DEVICE_CLASS (d);
|
|
|
913
|
|
|
914 LIST_LOOP (rest, tag_set)
|
|
|
915 {
|
|
|
916 Lisp_Object tag = XCAR (rest);
|
|
|
917 Lisp_Object assoc;
|
|
|
918
|
|
|
919 if (EQ (tag, devtype) || EQ (tag, devclass))
|
|
|
920 continue;
|
|
|
921 assoc = assq_no_quit (tag, DEVICE_USER_DEFINED_TAGS (d));
|
|
|
922 /* other built-in tags (device types/classes) are not in
|
|
|
923 the user-defined-tags list. */
|
|
|
924 if (NILP (assoc) || NILP (XCDR (assoc)))
|
|
|
925 return 0;
|
|
|
926 }
|
|
|
927
|
|
|
928 return 1;
|
|
|
929 }
|
|
|
930
|
|
442
|
931 DEFUN ("device-matches-specifier-tag-set-p",
|
|
|
932 Fdevice_matches_specifier_tag_set_p, 2, 2, 0, /*
|
|
428
|
933 Return non-nil if DEVICE matches specifier tag set TAG-SET.
|
|
|
934 This means that DEVICE matches each tag in the tag set. (Every
|
|
|
935 tag recognized by XEmacs has a predicate associated with it that
|
|
|
936 specifies which devices match it.)
|
|
|
937 */
|
|
|
938 (device, tag_set))
|
|
|
939 {
|
|
|
940 CHECK_LIVE_DEVICE (device);
|
|
|
941
|
|
|
942 if (NILP (Fvalid_specifier_tag_set_p (tag_set)))
|
|
563
|
943 invalid_argument ("Invalid tag set", tag_set);
|
|
428
|
944
|
|
|
945 return device_matches_specifier_tag_set_p (device, tag_set) ? Qt : Qnil;
|
|
|
946 }
|
|
|
947
|
|
|
948 DEFUN ("define-specifier-tag", Fdefine_specifier_tag, 1, 2, 0, /*
|
|
|
949 Define a new specifier tag.
|
|
|
950 If PREDICATE is specified, it should be a function of one argument
|
|
|
951 \(a device) that specifies whether the tag matches that particular
|
|
|
952 device. If PREDICATE is omitted, the tag matches all devices.
|
|
|
953
|
|
|
954 You can redefine an existing user-defined specifier tag. However,
|
|
|
955 you cannot redefine the built-in specifier tags (the device types
|
|
|
956 and classes) or the symbols nil, t, 'all, or 'global.
|
|
|
957 */
|
|
|
958 (tag, predicate))
|
|
|
959 {
|
|
|
960 Lisp_Object assoc, devcons, concons;
|
|
|
961 int recompute = 0;
|
|
|
962
|
|
|
963 CHECK_SYMBOL (tag);
|
|
|
964 if (valid_device_class_p (tag) ||
|
|
|
965 valid_console_type_p (tag))
|
|
563
|
966 invalid_change ("Cannot redefine built-in specifier tags", tag);
|
|
428
|
967 /* Try to prevent common instantiators and locales from being
|
|
|
968 redefined, to reduce ambiguity */
|
|
|
969 if (NILP (tag) || EQ (tag, Qt) || EQ (tag, Qall) || EQ (tag, Qglobal))
|
|
563
|
970 invalid_change ("Cannot define nil, t, 'all, or 'global", tag);
|
|
428
|
971 assoc = assq_no_quit (tag, Vuser_defined_tags);
|
|
|
972 if (NILP (assoc))
|
|
|
973 {
|
|
|
974 recompute = 1;
|
|
|
975 Vuser_defined_tags = Fcons (Fcons (tag, predicate), Vuser_defined_tags);
|
|
|
976 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
977 {
|
|
|
978 struct device *d = XDEVICE (XCAR (devcons));
|
|
|
979 /* Initially set the value to t in case of error
|
|
|
980 in predicate */
|
|
|
981 DEVICE_USER_DEFINED_TAGS (d) =
|
|
|
982 Fcons (Fcons (tag, Qt), DEVICE_USER_DEFINED_TAGS (d));
|
|
|
983 }
|
|
|
984 }
|
|
|
985 else if (!NILP (predicate) && !NILP (XCDR (assoc)))
|
|
|
986 {
|
|
|
987 recompute = 1;
|
|
|
988 XCDR (assoc) = predicate;
|
|
|
989 }
|
|
|
990
|
|
|
991 /* recompute the tag values for all devices. However, in the special
|
|
|
992 case where both the old and new predicates are nil, we know that
|
|
|
993 we don't have to do this. (It's probably common for people to
|
|
|
994 call (define-specifier-tag) more than once on the same tag,
|
|
|
995 and the most common case is where PREDICATE is not specified.) */
|
|
|
996
|
|
|
997 if (recompute)
|
|
|
998 {
|
|
|
999 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
1000 {
|
|
|
1001 Lisp_Object device = XCAR (devcons);
|
|
|
1002 assoc = assq_no_quit (tag,
|
|
|
1003 DEVICE_USER_DEFINED_TAGS (XDEVICE (device)));
|
|
|
1004 assert (CONSP (assoc));
|
|
|
1005 if (NILP (predicate))
|
|
|
1006 XCDR (assoc) = Qt;
|
|
|
1007 else
|
|
|
1008 XCDR (assoc) = !NILP (call1 (predicate, device)) ? Qt : Qnil;
|
|
|
1009 }
|
|
|
1010 }
|
|
|
1011
|
|
|
1012 return Qnil;
|
|
|
1013 }
|
|
|
1014
|
|
|
1015 /* Called at device-creation time to initialize the user-defined
|
|
|
1016 tag values for the newly-created device. */
|
|
|
1017
|
|
|
1018 void
|
|
|
1019 setup_device_initial_specifier_tags (struct device *d)
|
|
|
1020 {
|
|
|
1021 Lisp_Object rest, rest2;
|
|
|
1022 Lisp_Object device;
|
|
|
1023
|
|
|
1024 XSETDEVICE (device, d);
|
|
|
1025
|
|
|
1026 DEVICE_USER_DEFINED_TAGS (d) = Fcopy_alist (Vuser_defined_tags);
|
|
|
1027
|
|
|
1028 /* Now set up the initial values */
|
|
|
1029 LIST_LOOP (rest, DEVICE_USER_DEFINED_TAGS (d))
|
|
|
1030 XCDR (XCAR (rest)) = Qt;
|
|
|
1031
|
|
|
1032 for (rest = Vuser_defined_tags, rest2 = DEVICE_USER_DEFINED_TAGS (d);
|
|
|
1033 !NILP (rest); rest = XCDR (rest), rest2 = XCDR (rest2))
|
|
|
1034 {
|
|
|
1035 Lisp_Object predicate = XCDR (XCAR (rest));
|
|
|
1036 if (NILP (predicate))
|
|
|
1037 XCDR (XCAR (rest2)) = Qt;
|
|
|
1038 else
|
|
|
1039 XCDR (XCAR (rest2)) = !NILP (call1 (predicate, device)) ? Qt : Qnil;
|
|
|
1040 }
|
|
|
1041 }
|
|
|
1042
|
|
442
|
1043 DEFUN ("device-matching-specifier-tag-list",
|
|
|
1044 Fdevice_matching_specifier_tag_list,
|
|
428
|
1045 0, 1, 0, /*
|
|
|
1046 Return a list of all specifier tags matching DEVICE.
|
|
|
1047 DEVICE defaults to the selected device if omitted.
|
|
|
1048 */
|
|
|
1049 (device))
|
|
|
1050 {
|
|
|
1051 struct device *d = decode_device (device);
|
|
|
1052 Lisp_Object rest, list = Qnil;
|
|
|
1053 struct gcpro gcpro1;
|
|
|
1054
|
|
|
1055 GCPRO1 (list);
|
|
|
1056
|
|
|
1057 LIST_LOOP (rest, DEVICE_USER_DEFINED_TAGS (d))
|
|
|
1058 {
|
|
|
1059 if (!NILP (XCDR (XCAR (rest))))
|
|
|
1060 list = Fcons (XCAR (XCAR (rest)), list);
|
|
|
1061 }
|
|
|
1062
|
|
|
1063 list = Fnreverse (list);
|
|
|
1064 list = Fcons (DEVICE_CLASS (d), list);
|
|
|
1065 list = Fcons (DEVICE_TYPE (d), list);
|
|
|
1066
|
|
|
1067 RETURN_UNGCPRO (list);
|
|
|
1068 }
|
|
|
1069
|
|
|
1070 DEFUN ("specifier-tag-list", Fspecifier_tag_list, 0, 0, 0, /*
|
|
|
1071 Return a list of all currently-defined specifier tags.
|
|
|
1072 This includes the built-in ones (the device types and classes).
|
|
|
1073 */
|
|
|
1074 ())
|
|
|
1075 {
|
|
|
1076 Lisp_Object list = Qnil, rest;
|
|
|
1077 struct gcpro gcpro1;
|
|
|
1078
|
|
|
1079 GCPRO1 (list);
|
|
|
1080
|
|
|
1081 LIST_LOOP (rest, Vuser_defined_tags)
|
|
|
1082 list = Fcons (XCAR (XCAR (rest)), list);
|
|
|
1083
|
|
|
1084 list = Fnreverse (list);
|
|
|
1085 list = nconc2 (Fcopy_sequence (Vdevice_class_list), list);
|
|
|
1086 list = nconc2 (Fcopy_sequence (Vconsole_type_list), list);
|
|
|
1087
|
|
|
1088 RETURN_UNGCPRO (list);
|
|
|
1089 }
|
|
|
1090
|
|
|
1091 DEFUN ("specifier-tag-predicate", Fspecifier_tag_predicate, 1, 1, 0, /*
|
|
|
1092 Return the predicate for the given specifier tag.
|
|
|
1093 */
|
|
|
1094 (tag))
|
|
|
1095 {
|
|
|
1096 /* The return value of this function must be GCPRO'd. */
|
|
|
1097 CHECK_SYMBOL (tag);
|
|
|
1098
|
|
|
1099 if (NILP (Fvalid_specifier_tag_p (tag)))
|
|
563
|
1100 invalid_argument ("Invalid specifier tag",
|
|
442
|
1101 tag);
|
|
428
|
1102
|
|
|
1103 /* Make up some predicates for the built-in types */
|
|
|
1104
|
|
|
1105 if (valid_console_type_p (tag))
|
|
|
1106 return list3 (Qlambda, list1 (Qdevice),
|
|
|
1107 list3 (Qeq, list2 (Qquote, tag),
|
|
|
1108 list2 (Qconsole_type, Qdevice)));
|
|
|
1109
|
|
|
1110 if (valid_device_class_p (tag))
|
|
|
1111 return list3 (Qlambda, list1 (Qdevice),
|
|
|
1112 list3 (Qeq, list2 (Qquote, tag),
|
|
|
1113 list2 (Qdevice_class, Qdevice)));
|
|
|
1114
|
|
|
1115 return XCDR (assq_no_quit (tag, Vuser_defined_tags));
|
|
|
1116 }
|
|
|
1117
|
|
|
1118 /* Return true if A "matches" B. If EXACT_P is 0, A must be a subset of B.
|
|
|
1119 Otherwise, A must be `equal' to B. The sets must be canonicalized. */
|
|
|
1120 static int
|
|
|
1121 tag_sets_match_p (Lisp_Object a, Lisp_Object b, int exact_p)
|
|
|
1122 {
|
|
|
1123 if (!exact_p)
|
|
|
1124 {
|
|
|
1125 while (!NILP (a) && !NILP (b))
|
|
|
1126 {
|
|
|
1127 if (EQ (XCAR (a), XCAR (b)))
|
|
|
1128 a = XCDR (a);
|
|
|
1129 b = XCDR (b);
|
|
|
1130 }
|
|
|
1131
|
|
|
1132 return NILP (a);
|
|
|
1133 }
|
|
|
1134 else
|
|
|
1135 {
|
|
|
1136 while (!NILP (a) && !NILP (b))
|
|
|
1137 {
|
|
|
1138 if (!EQ (XCAR (a), XCAR (b)))
|
|
|
1139 return 0;
|
|
|
1140 a = XCDR (a);
|
|
|
1141 b = XCDR (b);
|
|
|
1142 }
|
|
|
1143
|
|
|
1144 return NILP (a) && NILP (b);
|
|
|
1145 }
|
|
|
1146 }
|
|
|
1147
|
|
|
1148
|
|
|
1149 /************************************************************************/
|
|
|
1150 /* Spec-lists and inst-lists */
|
|
|
1151 /************************************************************************/
|
|
|
1152
|
|
|
1153 static Lisp_Object
|
|
|
1154 call_validate_method (Lisp_Object boxed_method, Lisp_Object instantiator)
|
|
|
1155 {
|
|
|
1156 ((void (*)(Lisp_Object)) get_opaque_ptr (boxed_method)) (instantiator);
|
|
|
1157 return Qt;
|
|
|
1158 }
|
|
|
1159
|
|
|
1160 static Lisp_Object
|
|
|
1161 check_valid_instantiator (Lisp_Object instantiator,
|
|
|
1162 struct specifier_methods *meths,
|
|
|
1163 Error_behavior errb)
|
|
|
1164 {
|
|
|
1165 if (meths->validate_method)
|
|
|
1166 {
|
|
|
1167 Lisp_Object retval;
|
|
|
1168
|
|
|
1169 if (ERRB_EQ (errb, ERROR_ME))
|
|
|
1170 {
|
|
|
1171 (meths->validate_method) (instantiator);
|
|
|
1172 retval = Qt;
|
|
|
1173 }
|
|
|
1174 else
|
|
|
1175 {
|
|
|
1176 Lisp_Object opaque = make_opaque_ptr ((void *)
|
|
|
1177 meths->validate_method);
|
|
|
1178 struct gcpro gcpro1;
|
|
|
1179
|
|
|
1180 GCPRO1 (opaque);
|
|
|
1181 retval = call_with_suspended_errors
|
|
|
1182 ((lisp_fn_t) call_validate_method,
|
|
|
1183 Qnil, Qspecifier, errb, 2, opaque, instantiator);
|
|
|
1184
|
|
|
1185 free_opaque_ptr (opaque);
|
|
|
1186 UNGCPRO;
|
|
|
1187 }
|
|
|
1188
|
|
|
1189 return retval;
|
|
|
1190 }
|
|
|
1191 return Qt;
|
|
|
1192 }
|
|
|
1193
|
|
|
1194 DEFUN ("check-valid-instantiator", Fcheck_valid_instantiator, 2, 2, 0, /*
|
|
|
1195 Signal an error if INSTANTIATOR is invalid for SPECIFIER-TYPE.
|
|
|
1196 */
|
|
|
1197 (instantiator, specifier_type))
|
|
|
1198 {
|
|
|
1199 struct specifier_methods *meths = decode_specifier_type (specifier_type,
|
|
|
1200 ERROR_ME);
|
|
|
1201
|
|
|
1202 return check_valid_instantiator (instantiator, meths, ERROR_ME);
|
|
|
1203 }
|
|
|
1204
|
|
|
1205 DEFUN ("valid-instantiator-p", Fvalid_instantiator_p, 2, 2, 0, /*
|
|
|
1206 Return non-nil if INSTANTIATOR is valid for SPECIFIER-TYPE.
|
|
|
1207 */
|
|
|
1208 (instantiator, specifier_type))
|
|
|
1209 {
|
|
|
1210 struct specifier_methods *meths = decode_specifier_type (specifier_type,
|
|
|
1211 ERROR_ME);
|
|
|
1212
|
|
|
1213 return check_valid_instantiator (instantiator, meths, ERROR_ME_NOT);
|
|
|
1214 }
|
|
|
1215
|
|
|
1216 static Lisp_Object
|
|
|
1217 check_valid_inst_list (Lisp_Object inst_list, struct specifier_methods *meths,
|
|
|
1218 Error_behavior errb)
|
|
|
1219 {
|
|
|
1220 Lisp_Object rest;
|
|
|
1221
|
|
|
1222 LIST_LOOP (rest, inst_list)
|
|
|
1223 {
|
|
|
1224 Lisp_Object inst_pair, tag_set;
|
|
|
1225
|
|
|
1226 if (!CONSP (rest))
|
|
|
1227 {
|
|
563
|
1228 maybe_sferror (
|
|
442
|
1229 "Invalid instantiator list", inst_list,
|
|
428
|
1230 Qspecifier, errb);
|
|
|
1231 return Qnil;
|
|
|
1232 }
|
|
|
1233 if (!CONSP (inst_pair = XCAR (rest)))
|
|
|
1234 {
|
|
563
|
1235 maybe_sferror (
|
|
442
|
1236 "Invalid instantiator pair", inst_pair,
|
|
428
|
1237 Qspecifier, errb);
|
|
|
1238 return Qnil;
|
|
|
1239 }
|
|
|
1240 if (NILP (Fvalid_specifier_tag_set_p (tag_set = XCAR (inst_pair))))
|
|
|
1241 {
|
|
563
|
1242 maybe_invalid_argument (
|
|
442
|
1243 "Invalid specifier tag", tag_set,
|
|
428
|
1244 Qspecifier, errb);
|
|
|
1245 return Qnil;
|
|
|
1246 }
|
|
|
1247
|
|
|
1248 if (NILP (check_valid_instantiator (XCDR (inst_pair), meths, errb)))
|
|
|
1249 return Qnil;
|
|
|
1250 }
|
|
|
1251
|
|
|
1252 return Qt;
|
|
|
1253 }
|
|
|
1254
|
|
|
1255 DEFUN ("check-valid-inst-list", Fcheck_valid_inst_list, 2, 2, 0, /*
|
|
|
1256 Signal an error if INST-LIST is invalid for specifier type TYPE.
|
|
|
1257 */
|
|
|
1258 (inst_list, type))
|
|
|
1259 {
|
|
|
1260 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
1261
|
|
|
1262 return check_valid_inst_list (inst_list, meths, ERROR_ME);
|
|
|
1263 }
|
|
|
1264
|
|
|
1265 DEFUN ("valid-inst-list-p", Fvalid_inst_list_p, 2, 2, 0, /*
|
|
|
1266 Return non-nil if INST-LIST is valid for specifier type TYPE.
|
|
|
1267 */
|
|
|
1268 (inst_list, type))
|
|
|
1269 {
|
|
|
1270 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
1271
|
|
|
1272 return check_valid_inst_list (inst_list, meths, ERROR_ME_NOT);
|
|
|
1273 }
|
|
|
1274
|
|
|
1275 static Lisp_Object
|
|
|
1276 check_valid_spec_list (Lisp_Object spec_list, struct specifier_methods *meths,
|
|
|
1277 Error_behavior errb)
|
|
|
1278 {
|
|
|
1279 Lisp_Object rest;
|
|
|
1280
|
|
|
1281 LIST_LOOP (rest, spec_list)
|
|
|
1282 {
|
|
|
1283 Lisp_Object spec, locale;
|
|
|
1284 if (!CONSP (rest) || !CONSP (spec = XCAR (rest)))
|
|
|
1285 {
|
|
563
|
1286 maybe_sferror (
|
|
442
|
1287 "Invalid specification list", spec_list,
|
|
428
|
1288 Qspecifier, errb);
|
|
|
1289 return Qnil;
|
|
|
1290 }
|
|
|
1291 if (NILP (Fvalid_specifier_locale_p (locale = XCAR (spec))))
|
|
|
1292 {
|
|
563
|
1293 maybe_invalid_argument (
|
|
442
|
1294 "Invalid specifier locale", locale,
|
|
428
|
1295 Qspecifier, errb);
|
|
|
1296 return Qnil;
|
|
|
1297 }
|
|
|
1298
|
|
|
1299 if (NILP (check_valid_inst_list (XCDR (spec), meths, errb)))
|
|
|
1300 return Qnil;
|
|
|
1301 }
|
|
|
1302
|
|
|
1303 return Qt;
|
|
|
1304 }
|
|
|
1305
|
|
|
1306 DEFUN ("check-valid-spec-list", Fcheck_valid_spec_list, 2, 2, 0, /*
|
|
|
1307 Signal an error if SPEC-LIST is invalid for specifier type TYPE.
|
|
|
1308 */
|
|
|
1309 (spec_list, type))
|
|
|
1310 {
|
|
|
1311 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
1312
|
|
|
1313 return check_valid_spec_list (spec_list, meths, ERROR_ME);
|
|
|
1314 }
|
|
|
1315
|
|
|
1316 DEFUN ("valid-spec-list-p", Fvalid_spec_list_p, 2, 2, 0, /*
|
|
|
1317 Return non-nil if SPEC-LIST is valid for specifier type TYPE.
|
|
|
1318 */
|
|
|
1319 (spec_list, type))
|
|
|
1320 {
|
|
|
1321 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
1322
|
|
|
1323 return check_valid_spec_list (spec_list, meths, ERROR_ME_NOT);
|
|
|
1324 }
|
|
|
1325
|
|
|
1326 enum spec_add_meth
|
|
|
1327 decode_how_to_add_specification (Lisp_Object how_to_add)
|
|
|
1328 {
|
|
|
1329 if (NILP (how_to_add) || EQ (Qremove_tag_set_prepend, how_to_add))
|
|
|
1330 return SPEC_REMOVE_TAG_SET_PREPEND;
|
|
|
1331 if (EQ (Qremove_tag_set_append, how_to_add))
|
|
|
1332 return SPEC_REMOVE_TAG_SET_APPEND;
|
|
|
1333 if (EQ (Qappend, how_to_add))
|
|
|
1334 return SPEC_APPEND;
|
|
|
1335 if (EQ (Qprepend, how_to_add))
|
|
|
1336 return SPEC_PREPEND;
|
|
|
1337 if (EQ (Qremove_locale, how_to_add))
|
|
|
1338 return SPEC_REMOVE_LOCALE;
|
|
|
1339 if (EQ (Qremove_locale_type, how_to_add))
|
|
|
1340 return SPEC_REMOVE_LOCALE_TYPE;
|
|
|
1341 if (EQ (Qremove_all, how_to_add))
|
|
|
1342 return SPEC_REMOVE_ALL;
|
|
|
1343
|
|
563
|
1344 invalid_constant ("Invalid `how-to-add' flag", how_to_add);
|
|
428
|
1345
|
|
|
1346 return SPEC_PREPEND; /* not reached */
|
|
|
1347 }
|
|
|
1348
|
|
|
1349 /* Given a specifier object SPEC, return bodily specifier if SPEC is a
|
|
|
1350 ghost specifier, otherwise return the object itself
|
|
|
1351 */
|
|
|
1352 static Lisp_Object
|
|
|
1353 bodily_specifier (Lisp_Object spec)
|
|
|
1354 {
|
|
|
1355 return (GHOST_SPECIFIER_P (XSPECIFIER (spec))
|
|
|
1356 ? XSPECIFIER(spec)->magic_parent : spec);
|
|
|
1357 }
|
|
|
1358
|
|
|
1359 /* Signal error if (specifier SPEC is read-only.
|
|
|
1360 Read only are ghost specifiers unless Vunlock_ghost_specifiers is
|
|
|
1361 non-nil. All other specifiers are read-write.
|
|
|
1362 */
|
|
|
1363 static void
|
|
|
1364 check_modifiable_specifier (Lisp_Object spec)
|
|
|
1365 {
|
|
|
1366 if (NILP (Vunlock_ghost_specifiers)
|
|
|
1367 && GHOST_SPECIFIER_P (XSPECIFIER (spec)))
|
|
563
|
1368 signal_error (Qsetting_constant,
|
|
|
1369 "Attempt to modify read-only specifier",
|
|
|
1370 spec);
|
|
428
|
1371 }
|
|
|
1372
|
|
|
1373 /* Helper function which unwind protects the value of
|
|
|
1374 Vunlock_ghost_specifiers, then sets it to non-nil value */
|
|
|
1375 static Lisp_Object
|
|
|
1376 restore_unlock_value (Lisp_Object val)
|
|
|
1377 {
|
|
|
1378 Vunlock_ghost_specifiers = val;
|
|
|
1379 return val;
|
|
|
1380 }
|
|
|
1381
|
|
|
1382 int
|
|
|
1383 unlock_ghost_specifiers_protected (void)
|
|
|
1384 {
|
|
|
1385 int depth = specpdl_depth ();
|
|
|
1386 record_unwind_protect (restore_unlock_value,
|
|
|
1387 Vunlock_ghost_specifiers);
|
|
|
1388 Vunlock_ghost_specifiers = Qt;
|
|
|
1389 return depth;
|
|
|
1390 }
|
|
|
1391
|
|
|
1392 /* This gets hit so much that the function call overhead had a
|
|
|
1393 measurable impact (according to Quantify). #### We should figure
|
|
|
1394 out the frequency with which this is called with the various types
|
|
|
1395 and reorder the check accordingly. */
|
|
|
1396 #define SPECIFIER_GET_SPEC_LIST(specifier, type) \
|
|
|
1397 (type == LOCALE_GLOBAL ? &(XSPECIFIER (specifier)->global_specs) : \
|
|
|
1398 type == LOCALE_DEVICE ? &(XSPECIFIER (specifier)->device_specs) : \
|
|
|
1399 type == LOCALE_FRAME ? &(XSPECIFIER (specifier)->frame_specs) : \
|
|
|
1400 type == LOCALE_WINDOW ? &(XWEAK_LIST_LIST \
|
|
|
1401 (XSPECIFIER (specifier)->window_specs)) : \
|
|
|
1402 type == LOCALE_BUFFER ? &(XSPECIFIER (specifier)->buffer_specs) : \
|
|
|
1403 0)
|
|
|
1404
|
|
|
1405 static Lisp_Object *
|
|
|
1406 specifier_get_inst_list (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1407 enum spec_locale_type type)
|
|
|
1408 {
|
|
|
1409 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1410 Lisp_Object specification;
|
|
|
1411
|
|
|
1412 if (type == LOCALE_GLOBAL)
|
|
|
1413 return spec_list;
|
|
|
1414 /* Calling assq_no_quit when it is just going to return nil anyhow
|
|
|
1415 is extremely expensive. So sayeth Quantify. */
|
|
|
1416 if (!CONSP (*spec_list))
|
|
|
1417 return 0;
|
|
|
1418 specification = assq_no_quit (locale, *spec_list);
|
|
|
1419 if (NILP (specification))
|
|
|
1420 return 0;
|
|
|
1421 return &XCDR (specification);
|
|
|
1422 }
|
|
|
1423
|
|
|
1424 /* For the given INST_LIST, return a new INST_LIST containing all elements
|
|
|
1425 where TAG-SET matches the element's tag set. EXACT_P indicates whether
|
|
|
1426 the match must be exact (as opposed to a subset). SHORT_P indicates
|
|
|
1427 that the short form (for `specifier-specs') should be returned if
|
|
|
1428 possible. If COPY_TREE_P, `copy-tree' is used to ensure that no
|
|
|
1429 elements of the new list are shared with the initial list.
|
|
|
1430 */
|
|
|
1431
|
|
|
1432 static Lisp_Object
|
|
|
1433 specifier_process_inst_list (Lisp_Object inst_list,
|
|
|
1434 Lisp_Object tag_set, int exact_p,
|
|
|
1435 int short_p, int copy_tree_p)
|
|
|
1436 {
|
|
|
1437 Lisp_Object retval = Qnil;
|
|
|
1438 Lisp_Object rest;
|
|
|
1439 struct gcpro gcpro1;
|
|
|
1440
|
|
|
1441 GCPRO1 (retval);
|
|
|
1442 LIST_LOOP (rest, inst_list)
|
|
|
1443 {
|
|
|
1444 Lisp_Object tagged_inst = XCAR (rest);
|
|
|
1445 Lisp_Object tagged_inst_tag = XCAR (tagged_inst);
|
|
|
1446 if (tag_sets_match_p (tag_set, tagged_inst_tag, exact_p))
|
|
|
1447 {
|
|
|
1448 if (short_p && NILP (tagged_inst_tag))
|
|
|
1449 retval = Fcons (copy_tree_p ?
|
|
|
1450 Fcopy_tree (XCDR (tagged_inst), Qt) :
|
|
|
1451 XCDR (tagged_inst),
|
|
|
1452 retval);
|
|
|
1453 else
|
|
|
1454 retval = Fcons (copy_tree_p ? Fcopy_tree (tagged_inst, Qt) :
|
|
|
1455 tagged_inst, retval);
|
|
|
1456 }
|
|
|
1457 }
|
|
|
1458 retval = Fnreverse (retval);
|
|
|
1459 UNGCPRO;
|
|
|
1460 /* If there is a single instantiator and the short form is
|
|
|
1461 requested, return just the instantiator (rather than a one-element
|
|
|
1462 list of it) unless it is nil (so that it can be distinguished from
|
|
|
1463 no instantiators at all). */
|
|
|
1464 if (short_p && CONSP (retval) && !NILP (XCAR (retval)) &&
|
|
|
1465 NILP (XCDR (retval)))
|
|
|
1466 return XCAR (retval);
|
|
|
1467 else
|
|
|
1468 return retval;
|
|
|
1469 }
|
|
|
1470
|
|
|
1471 static Lisp_Object
|
|
|
1472 specifier_get_external_inst_list (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1473 enum spec_locale_type type,
|
|
|
1474 Lisp_Object tag_set, int exact_p,
|
|
|
1475 int short_p, int copy_tree_p)
|
|
|
1476 {
|
|
|
1477 Lisp_Object *inst_list = specifier_get_inst_list (specifier, locale,
|
|
|
1478 type);
|
|
|
1479 if (!inst_list || NILP (*inst_list))
|
|
|
1480 {
|
|
|
1481 /* nil for *inst_list should only occur in 'global */
|
|
|
1482 assert (!inst_list || EQ (locale, Qglobal));
|
|
|
1483 return Qnil;
|
|
|
1484 }
|
|
|
1485
|
|
|
1486 return specifier_process_inst_list (*inst_list, tag_set, exact_p,
|
|
|
1487 short_p, copy_tree_p);
|
|
|
1488 }
|
|
|
1489
|
|
|
1490 static Lisp_Object
|
|
|
1491 specifier_get_external_spec_list (Lisp_Object specifier,
|
|
|
1492 enum spec_locale_type type,
|
|
|
1493 Lisp_Object tag_set, int exact_p)
|
|
|
1494 {
|
|
|
1495 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1496 Lisp_Object retval = Qnil;
|
|
|
1497 Lisp_Object rest;
|
|
|
1498 struct gcpro gcpro1;
|
|
|
1499
|
|
|
1500 assert (type != LOCALE_GLOBAL);
|
|
|
1501 /* We're about to let stuff go external; make sure there aren't
|
|
|
1502 any dead objects */
|
|
|
1503 *spec_list = cleanup_assoc_list (*spec_list);
|
|
|
1504
|
|
|
1505 GCPRO1 (retval);
|
|
|
1506 LIST_LOOP (rest, *spec_list)
|
|
|
1507 {
|
|
|
1508 Lisp_Object spec = XCAR (rest);
|
|
|
1509 Lisp_Object inst_list =
|
|
|
1510 specifier_process_inst_list (XCDR (spec), tag_set, exact_p, 0, 1);
|
|
|
1511 if (!NILP (inst_list))
|
|
|
1512 retval = Fcons (Fcons (XCAR (spec), inst_list), retval);
|
|
|
1513 }
|
|
|
1514 RETURN_UNGCPRO (Fnreverse (retval));
|
|
|
1515 }
|
|
|
1516
|
|
|
1517 static Lisp_Object *
|
|
|
1518 specifier_new_spec (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1519 enum spec_locale_type type)
|
|
|
1520 {
|
|
|
1521 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1522 Lisp_Object new_spec = Fcons (locale, Qnil);
|
|
|
1523 assert (type != LOCALE_GLOBAL);
|
|
|
1524 *spec_list = Fcons (new_spec, *spec_list);
|
|
|
1525 return &XCDR (new_spec);
|
|
|
1526 }
|
|
|
1527
|
|
|
1528 /* For the given INST_LIST, return a new list comprised of elements
|
|
|
1529 where TAG_SET does not match the element's tag set. This operation
|
|
|
1530 is destructive. */
|
|
|
1531
|
|
|
1532 static Lisp_Object
|
|
|
1533 specifier_process_remove_inst_list (Lisp_Object inst_list,
|
|
|
1534 Lisp_Object tag_set, int exact_p,
|
|
|
1535 int *was_removed)
|
|
|
1536 {
|
|
|
1537 Lisp_Object prev = Qnil, rest;
|
|
|
1538
|
|
|
1539 *was_removed = 0;
|
|
|
1540
|
|
|
1541 LIST_LOOP (rest, inst_list)
|
|
|
1542 {
|
|
|
1543 if (tag_sets_match_p (tag_set, XCAR (XCAR (rest)), exact_p))
|
|
|
1544 {
|
|
|
1545 /* time to remove. */
|
|
|
1546 *was_removed = 1;
|
|
|
1547 if (NILP (prev))
|
|
|
1548 inst_list = XCDR (rest);
|
|
|
1549 else
|
|
|
1550 XCDR (prev) = XCDR (rest);
|
|
|
1551 }
|
|
|
1552 else
|
|
|
1553 prev = rest;
|
|
|
1554 }
|
|
|
1555
|
|
|
1556 return inst_list;
|
|
|
1557 }
|
|
|
1558
|
|
|
1559 static void
|
|
|
1560 specifier_remove_spec (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1561 enum spec_locale_type type,
|
|
|
1562 Lisp_Object tag_set, int exact_p)
|
|
|
1563 {
|
|
|
1564 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1565 Lisp_Object assoc;
|
|
|
1566 int was_removed;
|
|
|
1567
|
|
|
1568 if (type == LOCALE_GLOBAL)
|
|
|
1569 *spec_list = specifier_process_remove_inst_list (*spec_list, tag_set,
|
|
|
1570 exact_p, &was_removed);
|
|
|
1571 else
|
|
|
1572 {
|
|
|
1573 assoc = assq_no_quit (locale, *spec_list);
|
|
|
1574 if (NILP (assoc))
|
|
|
1575 /* this locale is not found. */
|
|
|
1576 return;
|
|
|
1577 XCDR (assoc) = specifier_process_remove_inst_list (XCDR (assoc),
|
|
|
1578 tag_set, exact_p,
|
|
|
1579 &was_removed);
|
|
|
1580 if (NILP (XCDR (assoc)))
|
|
|
1581 /* no inst-pairs left; remove this locale entirely. */
|
|
|
1582 *spec_list = remassq_no_quit (locale, *spec_list);
|
|
|
1583 }
|
|
|
1584
|
|
|
1585 if (was_removed)
|
|
|
1586 MAYBE_SPECMETH (XSPECIFIER (specifier), after_change,
|
|
|
1587 (bodily_specifier (specifier), locale));
|
|
|
1588 }
|
|
|
1589
|
|
|
1590 static void
|
|
|
1591 specifier_remove_locale_type (Lisp_Object specifier,
|
|
|
1592 enum spec_locale_type type,
|
|
|
1593 Lisp_Object tag_set, int exact_p)
|
|
|
1594 {
|
|
|
1595 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1596 Lisp_Object prev = Qnil, rest;
|
|
|
1597
|
|
|
1598 assert (type != LOCALE_GLOBAL);
|
|
|
1599 LIST_LOOP (rest, *spec_list)
|
|
|
1600 {
|
|
|
1601 int was_removed;
|
|
|
1602 int remove_spec = 0;
|
|
|
1603 Lisp_Object spec = XCAR (rest);
|
|
|
1604
|
|
|
1605 /* There may be dead objects floating around */
|
|
|
1606 /* remember, dead windows can become alive again. */
|
|
|
1607 if (!WINDOWP (XCAR (spec)) && object_dead_p (XCAR (spec)))
|
|
|
1608 {
|
|
|
1609 remove_spec = 1;
|
|
|
1610 was_removed = 0;
|
|
|
1611 }
|
|
|
1612 else
|
|
|
1613 {
|
|
|
1614 XCDR (spec) = specifier_process_remove_inst_list (XCDR (spec),
|
|
|
1615 tag_set, exact_p,
|
|
|
1616 &was_removed);
|
|
|
1617 if (NILP (XCDR (spec)))
|
|
|
1618 remove_spec = 1;
|
|
|
1619 }
|
|
|
1620
|
|
|
1621 if (remove_spec)
|
|
|
1622 {
|
|
|
1623 if (NILP (prev))
|
|
|
1624 *spec_list = XCDR (rest);
|
|
|
1625 else
|
|
|
1626 XCDR (prev) = XCDR (rest);
|
|
|
1627 }
|
|
|
1628 else
|
|
|
1629 prev = rest;
|
|
|
1630
|
|
|
1631 if (was_removed)
|
|
|
1632 MAYBE_SPECMETH (XSPECIFIER (specifier), after_change,
|
|
|
1633 (bodily_specifier (specifier), XCAR (spec)));
|
|
|
1634 }
|
|
|
1635 }
|
|
|
1636
|
|
|
1637 /* NEW_LIST is going to be added to INST_LIST, with add method ADD_METH.
|
|
|
1638 Frob INST_LIST according to ADD_METH. No need to call an after-change
|
|
|
1639 function; the calling function will do this. Return either SPEC_PREPEND
|
|
|
1640 or SPEC_APPEND, indicating whether to prepend or append the NEW_LIST. */
|
|
|
1641
|
|
|
1642 static enum spec_add_meth
|
|
|
1643 handle_multiple_add_insts (Lisp_Object *inst_list,
|
|
|
1644 Lisp_Object new_list,
|
|
|
1645 enum spec_add_meth add_meth)
|
|
|
1646 {
|
|
|
1647 switch (add_meth)
|
|
|
1648 {
|
|
|
1649 case SPEC_REMOVE_TAG_SET_APPEND:
|
|
|
1650 add_meth = SPEC_APPEND;
|
|
|
1651 goto remove_tag_set;
|
|
|
1652 case SPEC_REMOVE_TAG_SET_PREPEND:
|
|
|
1653 add_meth = SPEC_PREPEND;
|
|
|
1654 remove_tag_set:
|
|
|
1655 {
|
|
|
1656 Lisp_Object rest;
|
|
|
1657
|
|
|
1658 LIST_LOOP (rest, new_list)
|
|
|
1659 {
|
|
|
1660 Lisp_Object canontag = canonicalize_tag_set (XCAR (XCAR (rest)));
|
|
|
1661 struct gcpro gcpro1;
|
|
|
1662
|
|
|
1663 GCPRO1 (canontag);
|
|
|
1664 /* pull out all elements from the existing list with the
|
|
|
1665 same tag as any tags in NEW_LIST. */
|
|
|
1666 *inst_list = remassoc_no_quit (canontag, *inst_list);
|
|
|
1667 UNGCPRO;
|
|
|
1668 }
|
|
|
1669 }
|
|
|
1670 return add_meth;
|
|
|
1671 case SPEC_REMOVE_LOCALE:
|
|
|
1672 *inst_list = Qnil;
|
|
|
1673 return SPEC_PREPEND;
|
|
|
1674 case SPEC_APPEND:
|
|
|
1675 return add_meth;
|
|
|
1676 default:
|
|
|
1677 return SPEC_PREPEND;
|
|
|
1678 }
|
|
|
1679 }
|
|
|
1680
|
|
|
1681 /* Given a LOCALE and INST_LIST that is going to be added to SPECIFIER,
|
|
|
1682 copy, canonicalize, and call the going_to_add methods as necessary
|
|
|
1683 to produce a new list that is the one that really will be added
|
|
|
1684 to the specifier. */
|
|
|
1685
|
|
|
1686 static Lisp_Object
|
|
|
1687 build_up_processed_list (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1688 Lisp_Object inst_list)
|
|
|
1689 {
|
|
|
1690 /* The return value of this function must be GCPRO'd. */
|
|
|
1691 Lisp_Object rest, list_to_build_up = Qnil;
|
|
440
|
1692 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
428
|
1693 struct gcpro gcpro1;
|
|
|
1694
|
|
|
1695 GCPRO1 (list_to_build_up);
|
|
|
1696 LIST_LOOP (rest, inst_list)
|
|
|
1697 {
|
|
|
1698 Lisp_Object tag_set = XCAR (XCAR (rest));
|
|
|
1699 Lisp_Object sub_inst_list = Qnil;
|
|
434
|
1700 Lisp_Object instantiator;
|
|
428
|
1701 struct gcpro ngcpro1, ngcpro2;
|
|
|
1702
|
|
434
|
1703 if (HAS_SPECMETH_P (sp, copy_instantiator))
|
|
|
1704 instantiator = SPECMETH (sp, copy_instantiator,
|
|
|
1705 (XCDR (XCAR (rest))));
|
|
|
1706 else
|
|
|
1707 instantiator = Fcopy_tree (XCDR (XCAR (rest)), Qt);
|
|
|
1708
|
|
428
|
1709 NGCPRO2 (instantiator, sub_inst_list);
|
|
|
1710 /* call the will-add method; it may GC */
|
|
|
1711 sub_inst_list = HAS_SPECMETH_P (sp, going_to_add) ?
|
|
|
1712 SPECMETH (sp, going_to_add,
|
|
|
1713 (bodily_specifier (specifier), locale,
|
|
|
1714 tag_set, instantiator)) :
|
|
|
1715 Qt;
|
|
|
1716 if (EQ (sub_inst_list, Qt))
|
|
|
1717 /* no change here. */
|
|
|
1718 sub_inst_list = list1 (Fcons (canonicalize_tag_set (tag_set),
|
|
|
1719 instantiator));
|
|
|
1720 else
|
|
|
1721 {
|
|
|
1722 /* now canonicalize all the tag sets in the new objects */
|
|
|
1723 Lisp_Object rest2;
|
|
|
1724 LIST_LOOP (rest2, sub_inst_list)
|
|
|
1725 XCAR (XCAR (rest2)) = canonicalize_tag_set (XCAR (XCAR (rest2)));
|
|
|
1726 }
|
|
|
1727
|
|
|
1728 list_to_build_up = nconc2 (sub_inst_list, list_to_build_up);
|
|
|
1729 NUNGCPRO;
|
|
|
1730 }
|
|
|
1731
|
|
|
1732 RETURN_UNGCPRO (Fnreverse (list_to_build_up));
|
|
|
1733 }
|
|
|
1734
|
|
|
1735 /* Add a specification (locale and instantiator list) to a specifier.
|
|
|
1736 ADD_METH specifies what to do with existing specifications in the
|
|
|
1737 specifier, and is an enum that corresponds to the values in
|
|
|
1738 `add-spec-to-specifier'. The calling routine is responsible for
|
|
|
1739 validating LOCALE and INST-LIST, but the tag-sets in INST-LIST
|
|
|
1740 do not need to be canonicalized. */
|
|
|
1741
|
|
|
1742 /* #### I really need to rethink the after-change
|
|
|
1743 functions to make them easier to use and more efficient. */
|
|
|
1744
|
|
|
1745 static void
|
|
|
1746 specifier_add_spec (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1747 Lisp_Object inst_list, enum spec_add_meth add_meth)
|
|
|
1748 {
|
|
440
|
1749 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
428
|
1750 enum spec_locale_type type = locale_type_from_locale (locale);
|
|
|
1751 Lisp_Object *orig_inst_list, tem;
|
|
|
1752 Lisp_Object list_to_build_up = Qnil;
|
|
|
1753 struct gcpro gcpro1;
|
|
|
1754
|
|
|
1755 GCPRO1 (list_to_build_up);
|
|
|
1756 list_to_build_up = build_up_processed_list (specifier, locale, inst_list);
|
|
|
1757 /* Now handle REMOVE_LOCALE_TYPE and REMOVE_ALL. These are the
|
|
|
1758 add-meth types that affect locales other than this one. */
|
|
|
1759 if (add_meth == SPEC_REMOVE_LOCALE_TYPE)
|
|
|
1760 specifier_remove_locale_type (specifier, type, Qnil, 0);
|
|
|
1761 else if (add_meth == SPEC_REMOVE_ALL)
|
|
|
1762 {
|
|
|
1763 specifier_remove_locale_type (specifier, LOCALE_BUFFER, Qnil, 0);
|
|
|
1764 specifier_remove_locale_type (specifier, LOCALE_WINDOW, Qnil, 0);
|
|
|
1765 specifier_remove_locale_type (specifier, LOCALE_FRAME, Qnil, 0);
|
|
|
1766 specifier_remove_locale_type (specifier, LOCALE_DEVICE, Qnil, 0);
|
|
|
1767 specifier_remove_spec (specifier, Qglobal, LOCALE_GLOBAL, Qnil, 0);
|
|
|
1768 }
|
|
|
1769
|
|
|
1770 orig_inst_list = specifier_get_inst_list (specifier, locale, type);
|
|
|
1771 if (!orig_inst_list)
|
|
|
1772 orig_inst_list = specifier_new_spec (specifier, locale, type);
|
|
|
1773 add_meth = handle_multiple_add_insts (orig_inst_list, list_to_build_up,
|
|
|
1774 add_meth);
|
|
|
1775
|
|
|
1776 if (add_meth == SPEC_PREPEND)
|
|
|
1777 tem = nconc2 (list_to_build_up, *orig_inst_list);
|
|
|
1778 else if (add_meth == SPEC_APPEND)
|
|
|
1779 tem = nconc2 (*orig_inst_list, list_to_build_up);
|
|
|
1780 else
|
|
442
|
1781 {
|
|
|
1782 abort ();
|
|
|
1783 tem = Qnil;
|
|
|
1784 }
|
|
428
|
1785
|
|
|
1786 *orig_inst_list = tem;
|
|
|
1787
|
|
|
1788 UNGCPRO;
|
|
|
1789
|
|
|
1790 /* call the after-change method */
|
|
|
1791 MAYBE_SPECMETH (sp, after_change,
|
|
|
1792 (bodily_specifier (specifier), locale));
|
|
|
1793 }
|
|
|
1794
|
|
|
1795 static void
|
|
|
1796 specifier_copy_spec (Lisp_Object specifier, Lisp_Object dest,
|
|
|
1797 Lisp_Object locale, enum spec_locale_type type,
|
|
|
1798 Lisp_Object tag_set, int exact_p,
|
|
|
1799 enum spec_add_meth add_meth)
|
|
|
1800 {
|
|
|
1801 Lisp_Object inst_list =
|
|
|
1802 specifier_get_external_inst_list (specifier, locale, type, tag_set,
|
|
|
1803 exact_p, 0, 0);
|
|
|
1804 specifier_add_spec (dest, locale, inst_list, add_meth);
|
|
|
1805 }
|
|
|
1806
|
|
|
1807 static void
|
|
|
1808 specifier_copy_locale_type (Lisp_Object specifier, Lisp_Object dest,
|
|
|
1809 enum spec_locale_type type,
|
|
|
1810 Lisp_Object tag_set, int exact_p,
|
|
|
1811 enum spec_add_meth add_meth)
|
|
|
1812 {
|
|
|
1813 Lisp_Object *src_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1814 Lisp_Object rest;
|
|
|
1815
|
|
|
1816 /* This algorithm is O(n^2) in running time.
|
|
|
1817 It's certainly possible to implement an O(n log n) algorithm,
|
|
|
1818 but I doubt there's any need to. */
|
|
|
1819
|
|
|
1820 LIST_LOOP (rest, *src_list)
|
|
|
1821 {
|
|
|
1822 Lisp_Object spec = XCAR (rest);
|
|
|
1823 /* There may be dead objects floating around */
|
|
|
1824 /* remember, dead windows can become alive again. */
|
|
|
1825 if (WINDOWP (XCAR (spec)) || !object_dead_p (XCAR (spec)))
|
|
|
1826 specifier_add_spec
|
|
|
1827 (dest, XCAR (spec),
|
|
|
1828 specifier_process_inst_list (XCDR (spec), tag_set, exact_p, 0, 0),
|
|
|
1829 add_meth);
|
|
|
1830 }
|
|
|
1831 }
|
|
|
1832
|
|
|
1833 /* map MAPFUN over the locales in SPECIFIER that are given in LOCALE.
|
|
|
1834 CLOSURE is passed unchanged to MAPFUN. LOCALE can be one of
|
|
|
1835
|
|
|
1836 -- nil (same as 'all)
|
|
|
1837 -- a single locale, locale type, or 'all
|
|
|
1838 -- a list of locales, locale types, and/or 'all
|
|
|
1839
|
|
|
1840 MAPFUN is called for each locale and locale type given; for 'all,
|
|
|
1841 it is called for the locale 'global and for the four possible
|
|
|
1842 locale types. In each invocation, either LOCALE will be a locale
|
|
|
1843 and LOCALE_TYPE will be the locale type of this locale,
|
|
|
1844 or LOCALE will be nil and LOCALE_TYPE will be a locale type.
|
|
|
1845 If MAPFUN ever returns non-zero, the mapping is halted and the
|
|
|
1846 value returned is returned from map_specifier(). Otherwise, the
|
|
|
1847 mapping proceeds to the end and map_specifier() returns 0.
|
|
|
1848 */
|
|
|
1849
|
|
|
1850 static int
|
|
|
1851 map_specifier (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1852 int (*mapfun) (Lisp_Object specifier,
|
|
|
1853 Lisp_Object locale,
|
|
|
1854 enum spec_locale_type locale_type,
|
|
|
1855 Lisp_Object tag_set,
|
|
|
1856 int exact_p,
|
|
|
1857 void *closure),
|
|
|
1858 Lisp_Object tag_set, Lisp_Object exact_p,
|
|
|
1859 void *closure)
|
|
|
1860 {
|
|
|
1861 int retval = 0;
|
|
|
1862 Lisp_Object rest;
|
|
|
1863 struct gcpro gcpro1, gcpro2;
|
|
|
1864
|
|
|
1865 GCPRO2 (tag_set, locale);
|
|
|
1866 locale = decode_locale_list (locale);
|
|
|
1867 tag_set = decode_specifier_tag_set (tag_set);
|
|
|
1868 tag_set = canonicalize_tag_set (tag_set);
|
|
|
1869
|
|
|
1870 LIST_LOOP (rest, locale)
|
|
|
1871 {
|
|
|
1872 Lisp_Object theloc = XCAR (rest);
|
|
|
1873 if (!NILP (Fvalid_specifier_locale_p (theloc)))
|
|
|
1874 {
|
|
|
1875 retval = (*mapfun) (specifier, theloc,
|
|
|
1876 locale_type_from_locale (theloc),
|
|
|
1877 tag_set, !NILP (exact_p), closure);
|
|
|
1878 if (retval)
|
|
|
1879 break;
|
|
|
1880 }
|
|
|
1881 else if (!NILP (Fvalid_specifier_locale_type_p (theloc)))
|
|
|
1882 {
|
|
|
1883 retval = (*mapfun) (specifier, Qnil,
|
|
|
1884 decode_locale_type (theloc), tag_set,
|
|
|
1885 !NILP (exact_p), closure);
|
|
|
1886 if (retval)
|
|
|
1887 break;
|
|
|
1888 }
|
|
|
1889 else
|
|
|
1890 {
|
|
|
1891 assert (EQ (theloc, Qall));
|
|
|
1892 retval = (*mapfun) (specifier, Qnil, LOCALE_BUFFER, tag_set,
|
|
|
1893 !NILP (exact_p), closure);
|
|
|
1894 if (retval)
|
|
|
1895 break;
|
|
|
1896 retval = (*mapfun) (specifier, Qnil, LOCALE_WINDOW, tag_set,
|
|
|
1897 !NILP (exact_p), closure);
|
|
|
1898 if (retval)
|
|
|
1899 break;
|
|
|
1900 retval = (*mapfun) (specifier, Qnil, LOCALE_FRAME, tag_set,
|
|
|
1901 !NILP (exact_p), closure);
|
|
|
1902 if (retval)
|
|
|
1903 break;
|
|
|
1904 retval = (*mapfun) (specifier, Qnil, LOCALE_DEVICE, tag_set,
|
|
|
1905 !NILP (exact_p), closure);
|
|
|
1906 if (retval)
|
|
|
1907 break;
|
|
|
1908 retval = (*mapfun) (specifier, Qglobal, LOCALE_GLOBAL, tag_set,
|
|
|
1909 !NILP (exact_p), closure);
|
|
|
1910 if (retval)
|
|
|
1911 break;
|
|
|
1912 }
|
|
|
1913 }
|
|
|
1914
|
|
|
1915 UNGCPRO;
|
|
|
1916 return retval;
|
|
|
1917 }
|
|
|
1918
|
|
|
1919 DEFUN ("add-spec-to-specifier", Fadd_spec_to_specifier, 2, 5, 0, /*
|
|
|
1920 Add a specification to SPECIFIER.
|
|
|
1921 The specification maps from LOCALE (which should be a window, buffer,
|
|
|
1922 frame, device, or 'global, and defaults to 'global) to INSTANTIATOR,
|
|
|
1923 whose allowed values depend on the type of the specifier. Optional
|
|
|
1924 argument TAG-SET limits the instantiator to apply only to the specified
|
|
|
1925 tag set, which should be a list of tags all of which must match the
|
|
|
1926 device being instantiated over (tags are a device type, a device class,
|
|
|
1927 or tags defined with `define-specifier-tag'). Specifying a single
|
|
|
1928 symbol for TAG-SET is equivalent to specifying a one-element list
|
|
|
1929 containing that symbol. Optional argument HOW-TO-ADD specifies what to
|
|
|
1930 do if there are already specifications in the specifier.
|
|
|
1931 It should be one of
|
|
|
1932
|
|
|
1933 'prepend Put at the beginning of the current list of
|
|
|
1934 instantiators for LOCALE.
|
|
|
1935 'append Add to the end of the current list of
|
|
|
1936 instantiators for LOCALE.
|
|
|
1937 'remove-tag-set-prepend (this is the default)
|
|
|
1938 Remove any existing instantiators whose tag set is
|
|
|
1939 the same as TAG-SET; then put the new instantiator
|
|
|
1940 at the beginning of the current list. ("Same tag
|
|
|
1941 set" means that they contain the same elements.
|
|
|
1942 The order may be different.)
|
|
|
1943 'remove-tag-set-append
|
|
|
1944 Remove any existing instantiators whose tag set is
|
|
|
1945 the same as TAG-SET; then put the new instantiator
|
|
|
1946 at the end of the current list.
|
|
|
1947 'remove-locale Remove all previous instantiators for this locale
|
|
|
1948 before adding the new spec.
|
|
|
1949 'remove-locale-type Remove all specifications for all locales of the
|
|
|
1950 same type as LOCALE (this includes LOCALE itself)
|
|
|
1951 before adding the new spec.
|
|
|
1952 'remove-all Remove all specifications from the specifier
|
|
|
1953 before adding the new spec.
|
|
|
1954
|
|
|
1955 You can retrieve the specifications for a particular locale or locale type
|
|
|
1956 with the function `specifier-spec-list' or `specifier-specs'.
|
|
|
1957 */
|
|
|
1958 (specifier, instantiator, locale, tag_set, how_to_add))
|
|
|
1959 {
|
|
|
1960 enum spec_add_meth add_meth;
|
|
|
1961 Lisp_Object inst_list;
|
|
|
1962 struct gcpro gcpro1;
|
|
|
1963
|
|
|
1964 CHECK_SPECIFIER (specifier);
|
|
|
1965 check_modifiable_specifier (specifier);
|
|
|
1966
|
|
|
1967 locale = decode_locale (locale);
|
|
|
1968 check_valid_instantiator (instantiator,
|
|
|
1969 decode_specifier_type
|
|
|
1970 (Fspecifier_type (specifier), ERROR_ME),
|
|
|
1971 ERROR_ME);
|
|
|
1972 /* tag_set might be newly-created material, but it's part of inst_list
|
|
|
1973 so is properly GC-protected. */
|
|
|
1974 tag_set = decode_specifier_tag_set (tag_set);
|
|
|
1975 add_meth = decode_how_to_add_specification (how_to_add);
|
|
|
1976
|
|
|
1977 inst_list = list1 (Fcons (tag_set, instantiator));
|
|
|
1978 GCPRO1 (inst_list);
|
|
|
1979 specifier_add_spec (specifier, locale, inst_list, add_meth);
|
|
|
1980 recompute_cached_specifier_everywhere (specifier);
|
|
|
1981 RETURN_UNGCPRO (Qnil);
|
|
|
1982 }
|
|
|
1983
|
|
|
1984 DEFUN ("add-spec-list-to-specifier", Fadd_spec_list_to_specifier, 2, 3, 0, /*
|
|
444
|
1985 Add SPEC-LIST (a list of specifications) to SPECIFIER.
|
|
|
1986 The format of SPEC-LIST is
|
|
428
|
1987
|
|
|
1988 ((LOCALE (TAG-SET . INSTANTIATOR) ...) ...)
|
|
|
1989
|
|
|
1990 where
|
|
|
1991 LOCALE := a window, a buffer, a frame, a device, or 'global
|
|
|
1992 TAG-SET := an unordered list of zero or more TAGS, each of which
|
|
|
1993 is a symbol
|
|
|
1994 TAG := a device class (see `valid-device-class-p'), a device type
|
|
|
1995 (see `valid-console-type-p'), or a tag defined with
|
|
|
1996 `define-specifier-tag'
|
|
|
1997 INSTANTIATOR := format determined by the type of specifier
|
|
|
1998
|
|
|
1999 The pair (TAG-SET . INSTANTIATOR) is called an `inst-pair'.
|
|
|
2000 A list of inst-pairs is called an `inst-list'.
|
|
|
2001 The pair (LOCALE . INST-LIST) is called a `specification' or `spec'.
|
|
|
2002 A spec-list, then, can be viewed as a list of specifications.
|
|
|
2003
|
|
|
2004 HOW-TO-ADD specifies how to combine the new specifications with
|
|
|
2005 the existing ones, and has the same semantics as for
|
|
|
2006 `add-spec-to-specifier'.
|
|
|
2007
|
|
|
2008 In many circumstances, the higher-level function `set-specifier' is
|
|
|
2009 more convenient and should be used instead.
|
|
|
2010 */
|
|
|
2011 (specifier, spec_list, how_to_add))
|
|
|
2012 {
|
|
|
2013 enum spec_add_meth add_meth;
|
|
|
2014 Lisp_Object rest;
|
|
|
2015
|
|
|
2016 CHECK_SPECIFIER (specifier);
|
|
|
2017 check_modifiable_specifier (specifier);
|
|
|
2018
|
|
|
2019 check_valid_spec_list (spec_list,
|
|
|
2020 decode_specifier_type
|
|
|
2021 (Fspecifier_type (specifier), ERROR_ME),
|
|
|
2022 ERROR_ME);
|
|
|
2023 add_meth = decode_how_to_add_specification (how_to_add);
|
|
|
2024
|
|
|
2025 LIST_LOOP (rest, spec_list)
|
|
|
2026 {
|
|
|
2027 /* Placating the GCC god. */
|
|
|
2028 Lisp_Object specification = XCAR (rest);
|
|
|
2029 Lisp_Object locale = XCAR (specification);
|
|
|
2030 Lisp_Object inst_list = XCDR (specification);
|
|
|
2031
|
|
|
2032 specifier_add_spec (specifier, locale, inst_list, add_meth);
|
|
|
2033 }
|
|
|
2034 recompute_cached_specifier_everywhere (specifier);
|
|
|
2035 return Qnil;
|
|
|
2036 }
|
|
|
2037
|
|
|
2038 void
|
|
|
2039 add_spec_to_ghost_specifier (Lisp_Object specifier, Lisp_Object instantiator,
|
|
|
2040 Lisp_Object locale, Lisp_Object tag_set,
|
|
|
2041 Lisp_Object how_to_add)
|
|
|
2042 {
|
|
|
2043 int depth = unlock_ghost_specifiers_protected ();
|
|
|
2044 Fadd_spec_to_specifier (XSPECIFIER(specifier)->fallback,
|
|
|
2045 instantiator, locale, tag_set, how_to_add);
|
|
|
2046 unbind_to (depth, Qnil);
|
|
|
2047 }
|
|
|
2048
|
|
|
2049 struct specifier_spec_list_closure
|
|
|
2050 {
|
|
|
2051 Lisp_Object head, tail;
|
|
|
2052 };
|
|
|
2053
|
|
|
2054 static int
|
|
|
2055 specifier_spec_list_mapfun (Lisp_Object specifier,
|
|
|
2056 Lisp_Object locale,
|
|
|
2057 enum spec_locale_type locale_type,
|
|
|
2058 Lisp_Object tag_set,
|
|
|
2059 int exact_p,
|
|
|
2060 void *closure)
|
|
|
2061 {
|
|
|
2062 struct specifier_spec_list_closure *cl =
|
|
|
2063 (struct specifier_spec_list_closure *) closure;
|
|
|
2064 Lisp_Object partial;
|
|
|
2065
|
|
|
2066 if (NILP (locale))
|
|
|
2067 partial = specifier_get_external_spec_list (specifier,
|
|
|
2068 locale_type,
|
|
|
2069 tag_set, exact_p);
|
|
|
2070 else
|
|
|
2071 {
|
|
|
2072 partial = specifier_get_external_inst_list (specifier, locale,
|
|
|
2073 locale_type, tag_set,
|
|
|
2074 exact_p, 0, 1);
|
|
|
2075 if (!NILP (partial))
|
|
|
2076 partial = list1 (Fcons (locale, partial));
|
|
|
2077 }
|
|
|
2078 if (NILP (partial))
|
|
|
2079 return 0;
|
|
|
2080
|
|
|
2081 /* tack on the new list */
|
|
|
2082 if (NILP (cl->tail))
|
|
|
2083 cl->head = cl->tail = partial;
|
|
|
2084 else
|
|
|
2085 XCDR (cl->tail) = partial;
|
|
|
2086 /* find the new tail */
|
|
|
2087 while (CONSP (XCDR (cl->tail)))
|
|
|
2088 cl->tail = XCDR (cl->tail);
|
|
|
2089 return 0;
|
|
|
2090 }
|
|
|
2091
|
|
|
2092 /* For the given SPECIFIER create and return a list of all specs
|
|
|
2093 contained within it, subject to LOCALE. If LOCALE is a locale, only
|
|
|
2094 specs in that locale will be returned. If LOCALE is a locale type,
|
|
|
2095 all specs in all locales of that type will be returned. If LOCALE is
|
|
|
2096 nil, all specs will be returned. This always copies lists and never
|
|
|
2097 returns the actual lists, because we do not want someone manipulating
|
|
|
2098 the actual objects. This may cause a slight loss of potential
|
|
|
2099 functionality but if we were to allow it then a user could manage to
|
|
|
2100 violate our assertion that the specs contained in the actual
|
|
|
2101 specifier lists are all valid. */
|
|
|
2102
|
|
|
2103 DEFUN ("specifier-spec-list", Fspecifier_spec_list, 1, 4, 0, /*
|
|
|
2104 Return the spec-list of specifications for SPECIFIER in LOCALE.
|
|
|
2105
|
|
|
2106 If LOCALE is a particular locale (a buffer, window, frame, device,
|
|
|
2107 or 'global), a spec-list consisting of the specification for that
|
|
|
2108 locale will be returned.
|
|
|
2109
|
|
|
2110 If LOCALE is a locale type (i.e. 'buffer, 'window, 'frame, or 'device),
|
|
|
2111 a spec-list of the specifications for all locales of that type will be
|
|
|
2112 returned.
|
|
|
2113
|
|
|
2114 If LOCALE is nil or 'all, a spec-list of all specifications in SPECIFIER
|
|
|
2115 will be returned.
|
|
|
2116
|
|
|
2117 LOCALE can also be a list of locales, locale types, and/or 'all; the
|
|
|
2118 result is as if `specifier-spec-list' were called on each element of the
|
|
|
2119 list and the results concatenated together.
|
|
|
2120
|
|
|
2121 Only instantiators where TAG-SET (a list of zero or more tags) is a
|
|
|
2122 subset of (or possibly equal to) the instantiator's tag set are returned.
|
|
|
2123 \(The default value of nil is a subset of all tag sets, so in this case
|
|
|
2124 no instantiators will be screened out.) If EXACT-P is non-nil, however,
|
|
|
2125 TAG-SET must be equal to an instantiator's tag set for the instantiator
|
|
|
2126 to be returned.
|
|
|
2127 */
|
|
|
2128 (specifier, locale, tag_set, exact_p))
|
|
|
2129 {
|
|
|
2130 struct specifier_spec_list_closure cl;
|
|
|
2131 struct gcpro gcpro1, gcpro2;
|
|
|
2132
|
|
|
2133 CHECK_SPECIFIER (specifier);
|
|
|
2134 cl.head = cl.tail = Qnil;
|
|
|
2135 GCPRO2 (cl.head, cl.tail);
|
|
|
2136 map_specifier (specifier, locale, specifier_spec_list_mapfun,
|
|
|
2137 tag_set, exact_p, &cl);
|
|
|
2138 UNGCPRO;
|
|
|
2139 return cl.head;
|
|
|
2140 }
|
|
|
2141
|
|
|
2142
|
|
|
2143 DEFUN ("specifier-specs", Fspecifier_specs, 1, 4, 0, /*
|
|
|
2144 Return the specification(s) for SPECIFIER in LOCALE.
|
|
|
2145
|
|
|
2146 If LOCALE is a single locale or is a list of one element containing a
|
|
|
2147 single locale, then a "short form" of the instantiators for that locale
|
|
|
2148 will be returned. Otherwise, this function is identical to
|
|
|
2149 `specifier-spec-list'.
|
|
|
2150
|
|
|
2151 The "short form" is designed for readability and not for ease of use
|
|
|
2152 in Lisp programs, and is as follows:
|
|
|
2153
|
|
|
2154 1. If there is only one instantiator, then an inst-pair (i.e. cons of
|
|
|
2155 tag and instantiator) will be returned; otherwise a list of
|
|
|
2156 inst-pairs will be returned.
|
|
|
2157 2. For each inst-pair returned, if the instantiator's tag is 'any,
|
|
|
2158 the tag will be removed and the instantiator itself will be returned
|
|
|
2159 instead of the inst-pair.
|
|
|
2160 3. If there is only one instantiator, its value is nil, and its tag is
|
|
|
2161 'any, a one-element list containing nil will be returned rather
|
|
|
2162 than just nil, to distinguish this case from there being no
|
|
|
2163 instantiators at all.
|
|
|
2164 */
|
|
|
2165 (specifier, locale, tag_set, exact_p))
|
|
|
2166 {
|
|
|
2167 if (!NILP (Fvalid_specifier_locale_p (locale)) ||
|
|
|
2168 (CONSP (locale) && !NILP (Fvalid_specifier_locale_p (XCAR (locale))) &&
|
|
|
2169 NILP (XCDR (locale))))
|
|
|
2170 {
|
|
|
2171 struct gcpro gcpro1;
|
|
|
2172
|
|
|
2173 CHECK_SPECIFIER (specifier);
|
|
|
2174 if (CONSP (locale))
|
|
|
2175 locale = XCAR (locale);
|
|
|
2176 GCPRO1 (tag_set);
|
|
|
2177 tag_set = decode_specifier_tag_set (tag_set);
|
|
|
2178 tag_set = canonicalize_tag_set (tag_set);
|
|
|
2179 RETURN_UNGCPRO
|
|
|
2180 (specifier_get_external_inst_list (specifier, locale,
|
|
|
2181 locale_type_from_locale (locale),
|
|
|
2182 tag_set, !NILP (exact_p), 1, 1));
|
|
|
2183 }
|
|
|
2184 else
|
|
|
2185 return Fspecifier_spec_list (specifier, locale, tag_set, exact_p);
|
|
|
2186 }
|
|
|
2187
|
|
|
2188 static int
|
|
|
2189 remove_specifier_mapfun (Lisp_Object specifier,
|
|
|
2190 Lisp_Object locale,
|
|
|
2191 enum spec_locale_type locale_type,
|
|
|
2192 Lisp_Object tag_set,
|
|
|
2193 int exact_p,
|
|
|
2194 void *ignored_closure)
|
|
|
2195 {
|
|
|
2196 if (NILP (locale))
|
|
|
2197 specifier_remove_locale_type (specifier, locale_type, tag_set, exact_p);
|
|
|
2198 else
|
|
|
2199 specifier_remove_spec (specifier, locale, locale_type, tag_set, exact_p);
|
|
|
2200 return 0;
|
|
|
2201 }
|
|
|
2202
|
|
|
2203 DEFUN ("remove-specifier", Fremove_specifier, 1, 4, 0, /*
|
|
|
2204 Remove specification(s) for SPECIFIER.
|
|
|
2205
|
|
|
2206 If LOCALE is a particular locale (a window, buffer, frame, device,
|
|
|
2207 or 'global), the specification for that locale will be removed.
|
|
|
2208
|
|
|
2209 If instead, LOCALE is a locale type (i.e. 'window, 'buffer, 'frame,
|
|
|
2210 or 'device), the specifications for all locales of that type will be
|
|
|
2211 removed.
|
|
|
2212
|
|
|
2213 If LOCALE is nil or 'all, all specifications will be removed.
|
|
|
2214
|
|
|
2215 LOCALE can also be a list of locales, locale types, and/or 'all; this
|
|
|
2216 is equivalent to calling `remove-specifier' for each of the elements
|
|
|
2217 in the list.
|
|
|
2218
|
|
|
2219 Only instantiators where TAG-SET (a list of zero or more tags) is a
|
|
|
2220 subset of (or possibly equal to) the instantiator's tag set are removed.
|
|
|
2221 The default value of nil is a subset of all tag sets, so in this case
|
|
|
2222 no instantiators will be screened out. If EXACT-P is non-nil, however,
|
|
|
2223 TAG-SET must be equal to an instantiator's tag set for the instantiator
|
|
|
2224 to be removed.
|
|
|
2225 */
|
|
|
2226 (specifier, locale, tag_set, exact_p))
|
|
|
2227 {
|
|
|
2228 CHECK_SPECIFIER (specifier);
|
|
|
2229 check_modifiable_specifier (specifier);
|
|
|
2230
|
|
|
2231 map_specifier (specifier, locale, remove_specifier_mapfun,
|
|
|
2232 tag_set, exact_p, 0);
|
|
|
2233 recompute_cached_specifier_everywhere (specifier);
|
|
|
2234 return Qnil;
|
|
|
2235 }
|
|
|
2236
|
|
|
2237 void
|
|
|
2238 remove_ghost_specifier (Lisp_Object specifier, Lisp_Object locale,
|
|
|
2239 Lisp_Object tag_set, Lisp_Object exact_p)
|
|
|
2240 {
|
|
|
2241 int depth = unlock_ghost_specifiers_protected ();
|
|
|
2242 Fremove_specifier (XSPECIFIER(specifier)->fallback,
|
|
|
2243 locale, tag_set, exact_p);
|
|
|
2244 unbind_to (depth, Qnil);
|
|
|
2245 }
|
|
|
2246
|
|
|
2247 struct copy_specifier_closure
|
|
|
2248 {
|
|
|
2249 Lisp_Object dest;
|
|
|
2250 enum spec_add_meth add_meth;
|
|
|
2251 int add_meth_is_nil;
|
|
|
2252 };
|
|
|
2253
|
|
|
2254 static int
|
|
|
2255 copy_specifier_mapfun (Lisp_Object specifier,
|
|
|
2256 Lisp_Object locale,
|
|
|
2257 enum spec_locale_type locale_type,
|
|
|
2258 Lisp_Object tag_set,
|
|
|
2259 int exact_p,
|
|
|
2260 void *closure)
|
|
|
2261 {
|
|
|
2262 struct copy_specifier_closure *cl =
|
|
|
2263 (struct copy_specifier_closure *) closure;
|
|
|
2264
|
|
|
2265 if (NILP (locale))
|
|
|
2266 specifier_copy_locale_type (specifier, cl->dest, locale_type,
|
|
|
2267 tag_set, exact_p,
|
|
|
2268 cl->add_meth_is_nil ?
|
|
|
2269 SPEC_REMOVE_LOCALE_TYPE :
|
|
|
2270 cl->add_meth);
|
|
|
2271 else
|
|
|
2272 specifier_copy_spec (specifier, cl->dest, locale, locale_type,
|
|
|
2273 tag_set, exact_p,
|
|
|
2274 cl->add_meth_is_nil ? SPEC_REMOVE_LOCALE :
|
|
|
2275 cl->add_meth);
|
|
|
2276 return 0;
|
|
|
2277 }
|
|
|
2278
|
|
|
2279 DEFUN ("copy-specifier", Fcopy_specifier, 1, 6, 0, /*
|
|
|
2280 Copy SPECIFIER to DEST, or create a new one if DEST is nil.
|
|
|
2281
|
|
|
2282 If DEST is nil or omitted, a new specifier will be created and the
|
|
|
2283 specifications copied into it. Otherwise, the specifications will be
|
|
|
2284 copied into the existing specifier in DEST.
|
|
|
2285
|
|
|
2286 If LOCALE is nil or 'all, all specifications will be copied. If LOCALE
|
|
|
2287 is a particular locale, the specification for that particular locale will
|
|
|
2288 be copied. If LOCALE is a locale type, the specifications for all locales
|
|
|
2289 of that type will be copied. LOCALE can also be a list of locales,
|
|
|
2290 locale types, and/or 'all; this is equivalent to calling `copy-specifier'
|
|
|
2291 for each of the elements of the list. See `specifier-spec-list' for more
|
|
|
2292 information about LOCALE.
|
|
|
2293
|
|
|
2294 Only instantiators where TAG-SET (a list of zero or more tags) is a
|
|
|
2295 subset of (or possibly equal to) the instantiator's tag set are copied.
|
|
|
2296 The default value of nil is a subset of all tag sets, so in this case
|
|
|
2297 no instantiators will be screened out. If EXACT-P is non-nil, however,
|
|
|
2298 TAG-SET must be equal to an instantiator's tag set for the instantiator
|
|
|
2299 to be copied.
|
|
|
2300
|
|
|
2301 Optional argument HOW-TO-ADD specifies what to do with existing
|
|
|
2302 specifications in DEST. If nil, then whichever locales or locale types
|
|
|
2303 are copied will first be completely erased in DEST. Otherwise, it is
|
|
|
2304 the same as in `add-spec-to-specifier'.
|
|
|
2305 */
|
|
|
2306 (specifier, dest, locale, tag_set, exact_p, how_to_add))
|
|
|
2307 {
|
|
|
2308 struct gcpro gcpro1;
|
|
|
2309 struct copy_specifier_closure cl;
|
|
|
2310
|
|
|
2311 CHECK_SPECIFIER (specifier);
|
|
|
2312 if (NILP (how_to_add))
|
|
|
2313 cl.add_meth_is_nil = 1;
|
|
|
2314 else
|
|
|
2315 cl.add_meth_is_nil = 0;
|
|
|
2316 cl.add_meth = decode_how_to_add_specification (how_to_add);
|
|
|
2317 if (NILP (dest))
|
|
|
2318 {
|
|
|
2319 /* #### What about copying the extra data? */
|
|
|
2320 dest = make_specifier (XSPECIFIER (specifier)->methods);
|
|
|
2321 }
|
|
|
2322 else
|
|
|
2323 {
|
|
|
2324 CHECK_SPECIFIER (dest);
|
|
|
2325 check_modifiable_specifier (dest);
|
|
|
2326 if (XSPECIFIER (dest)->methods != XSPECIFIER (specifier)->methods)
|
|
563
|
2327 invalid_argument ("Specifiers not of same type", Qunbound);
|
|
428
|
2328 }
|
|
|
2329
|
|
|
2330 cl.dest = dest;
|
|
|
2331 GCPRO1 (dest);
|
|
|
2332 map_specifier (specifier, locale, copy_specifier_mapfun,
|
|
|
2333 tag_set, exact_p, &cl);
|
|
|
2334 UNGCPRO;
|
|
|
2335 recompute_cached_specifier_everywhere (dest);
|
|
|
2336 return dest;
|
|
|
2337 }
|
|
|
2338
|
|
|
2339
|
|
|
2340 /************************************************************************/
|
|
|
2341 /* Instancing */
|
|
|
2342 /************************************************************************/
|
|
|
2343
|
|
|
2344 static Lisp_Object
|
|
|
2345 call_validate_matchspec_method (Lisp_Object boxed_method,
|
|
|
2346 Lisp_Object matchspec)
|
|
|
2347 {
|
|
|
2348 ((void (*)(Lisp_Object)) get_opaque_ptr (boxed_method)) (matchspec);
|
|
|
2349 return Qt;
|
|
|
2350 }
|
|
|
2351
|
|
|
2352 static Lisp_Object
|
|
|
2353 check_valid_specifier_matchspec (Lisp_Object matchspec,
|
|
|
2354 struct specifier_methods *meths,
|
|
|
2355 Error_behavior errb)
|
|
|
2356 {
|
|
|
2357 if (meths->validate_matchspec_method)
|
|
|
2358 {
|
|
|
2359 Lisp_Object retval;
|
|
|
2360
|
|
|
2361 if (ERRB_EQ (errb, ERROR_ME))
|
|
|
2362 {
|
|
|
2363 (meths->validate_matchspec_method) (matchspec);
|
|
|
2364 retval = Qt;
|
|
|
2365 }
|
|
|
2366 else
|
|
|
2367 {
|
|
|
2368 Lisp_Object opaque =
|
|
|
2369 make_opaque_ptr ((void *) meths->validate_matchspec_method);
|
|
|
2370 struct gcpro gcpro1;
|
|
|
2371
|
|
|
2372 GCPRO1 (opaque);
|
|
|
2373 retval = call_with_suspended_errors
|
|
|
2374 ((lisp_fn_t) call_validate_matchspec_method,
|
|
|
2375 Qnil, Qspecifier, errb, 2, opaque, matchspec);
|
|
|
2376
|
|
|
2377 free_opaque_ptr (opaque);
|
|
|
2378 UNGCPRO;
|
|
|
2379 }
|
|
|
2380
|
|
|
2381 return retval;
|
|
|
2382 }
|
|
|
2383 else
|
|
|
2384 {
|
|
563
|
2385 maybe_sferror
|
|
428
|
2386 ("Matchspecs not allowed for this specifier type",
|
|
|
2387 intern (meths->name), Qspecifier, errb);
|
|
|
2388 return Qnil;
|
|
|
2389 }
|
|
|
2390 }
|
|
|
2391
|
|
442
|
2392 DEFUN ("check-valid-specifier-matchspec", Fcheck_valid_specifier_matchspec, 2,
|
|
|
2393 2, 0, /*
|
|
428
|
2394 Signal an error if MATCHSPEC is invalid for SPECIFIER-TYPE.
|
|
|
2395 See `specifier-matching-instance' for a description of matchspecs.
|
|
|
2396 */
|
|
|
2397 (matchspec, specifier_type))
|
|
|
2398 {
|
|
|
2399 struct specifier_methods *meths = decode_specifier_type (specifier_type,
|
|
|
2400 ERROR_ME);
|
|
|
2401
|
|
|
2402 return check_valid_specifier_matchspec (matchspec, meths, ERROR_ME);
|
|
|
2403 }
|
|
|
2404
|
|
|
2405 DEFUN ("valid-specifier-matchspec-p", Fvalid_specifier_matchspec_p, 2, 2, 0, /*
|
|
|
2406 Return non-nil if MATCHSPEC is valid for SPECIFIER-TYPE.
|
|
|
2407 See `specifier-matching-instance' for a description of matchspecs.
|
|
|
2408 */
|
|
|
2409 (matchspec, specifier_type))
|
|
|
2410 {
|
|
|
2411 struct specifier_methods *meths = decode_specifier_type (specifier_type,
|
|
|
2412 ERROR_ME);
|
|
|
2413
|
|
|
2414 return check_valid_specifier_matchspec (matchspec, meths, ERROR_ME_NOT);
|
|
|
2415 }
|
|
|
2416
|
|
|
2417 /* This function is purposely not callable from Lisp. If a Lisp
|
|
|
2418 caller wants to set a fallback, they should just set the
|
|
|
2419 global value. */
|
|
|
2420
|
|
|
2421 void
|
|
|
2422 set_specifier_fallback (Lisp_Object specifier, Lisp_Object fallback)
|
|
|
2423 {
|
|
440
|
2424 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
428
|
2425 assert (SPECIFIERP (fallback) ||
|
|
|
2426 !NILP (Fvalid_inst_list_p (fallback, Fspecifier_type (specifier))));
|
|
|
2427 if (SPECIFIERP (fallback))
|
|
|
2428 assert (EQ (Fspecifier_type (specifier), Fspecifier_type (fallback)));
|
|
|
2429 if (BODILY_SPECIFIER_P (sp))
|
|
|
2430 GHOST_SPECIFIER(sp)->fallback = fallback;
|
|
|
2431 else
|
|
|
2432 sp->fallback = fallback;
|
|
|
2433 /* call the after-change method */
|
|
|
2434 MAYBE_SPECMETH (sp, after_change,
|
|
|
2435 (bodily_specifier (specifier), Qfallback));
|
|
|
2436 recompute_cached_specifier_everywhere (specifier);
|
|
|
2437 }
|
|
|
2438
|
|
|
2439 DEFUN ("specifier-fallback", Fspecifier_fallback, 1, 1, 0, /*
|
|
|
2440 Return the fallback value for SPECIFIER.
|
|
|
2441 Fallback values are provided by the C code for certain built-in
|
|
|
2442 specifiers to make sure that instancing won't fail even if all
|
|
|
2443 specs are removed from the specifier, or to implement simple
|
|
|
2444 inheritance behavior (e.g. this method is used to ensure that
|
|
|
2445 faces other than 'default inherit their attributes from 'default).
|
|
|
2446 By design, you cannot change the fallback value, and specifiers
|
|
|
2447 created with `make-specifier' will never have a fallback (although
|
|
|
2448 a similar, Lisp-accessible capability may be provided in the future
|
|
|
2449 to allow for inheritance).
|
|
|
2450
|
|
|
2451 The fallback value will be an inst-list that is instanced like
|
|
|
2452 any other inst-list, a specifier of the same type as SPECIFIER
|
|
|
2453 \(results in inheritance), or nil for no fallback.
|
|
|
2454
|
|
|
2455 When you instance a specifier, you can explicitly request that the
|
|
|
2456 fallback not be consulted. (The C code does this, for example, when
|
|
|
2457 merging faces.) See `specifier-instance'.
|
|
|
2458 */
|
|
|
2459 (specifier))
|
|
|
2460 {
|
|
|
2461 CHECK_SPECIFIER (specifier);
|
|
|
2462 return Fcopy_tree (XSPECIFIER (specifier)->fallback, Qt);
|
|
|
2463 }
|
|
|
2464
|
|
|
2465 static Lisp_Object
|
|
|
2466 specifier_instance_from_inst_list (Lisp_Object specifier,
|
|
|
2467 Lisp_Object matchspec,
|
|
|
2468 Lisp_Object domain,
|
|
|
2469 Lisp_Object inst_list,
|
|
|
2470 Error_behavior errb, int no_quit,
|
|
|
2471 Lisp_Object depth)
|
|
|
2472 {
|
|
|
2473 /* This function can GC */
|
|
440
|
2474 Lisp_Specifier *sp;
|
|
428
|
2475 Lisp_Object device;
|
|
|
2476 Lisp_Object rest;
|
|
|
2477 int count = specpdl_depth ();
|
|
|
2478 struct gcpro gcpro1, gcpro2;
|
|
|
2479
|
|
|
2480 GCPRO2 (specifier, inst_list);
|
|
|
2481
|
|
|
2482 sp = XSPECIFIER (specifier);
|
|
442
|
2483 device = DOMAIN_DEVICE (domain);
|
|
428
|
2484
|
|
|
2485 if (no_quit)
|
|
|
2486 /* The instantiate method is allowed to call eval. Since it
|
|
|
2487 is quite common for this function to get called from somewhere in
|
|
|
2488 redisplay we need to make sure that quits are ignored. Otherwise
|
|
|
2489 Fsignal will abort. */
|
|
|
2490 specbind (Qinhibit_quit, Qt);
|
|
|
2491
|
|
|
2492 LIST_LOOP (rest, inst_list)
|
|
|
2493 {
|
|
|
2494 Lisp_Object tagged_inst = XCAR (rest);
|
|
|
2495 Lisp_Object tag_set = XCAR (tagged_inst);
|
|
|
2496
|
|
|
2497 if (device_matches_specifier_tag_set_p (device, tag_set))
|
|
|
2498 {
|
|
|
2499 Lisp_Object val = XCDR (tagged_inst);
|
|
|
2500
|
|
|
2501 if (HAS_SPECMETH_P (sp, instantiate))
|
|
|
2502 val = call_with_suspended_errors
|
|
|
2503 ((lisp_fn_t) RAW_SPECMETH (sp, instantiate),
|
|
|
2504 Qunbound, Qspecifier, errb, 5, specifier,
|
|
|
2505 matchspec, domain, val, depth);
|
|
|
2506
|
|
|
2507 if (!UNBOUNDP (val))
|
|
|
2508 {
|
|
|
2509 unbind_to (count, Qnil);
|
|
|
2510 UNGCPRO;
|
|
|
2511 return val;
|
|
|
2512 }
|
|
|
2513 }
|
|
|
2514 }
|
|
|
2515
|
|
|
2516 unbind_to (count, Qnil);
|
|
|
2517 UNGCPRO;
|
|
|
2518 return Qunbound;
|
|
|
2519 }
|
|
|
2520
|
|
|
2521 /* Given a SPECIFIER and a DOMAIN, return a specific instance for that
|
|
|
2522 specifier. Try to find one by checking the specifier types from most
|
|
|
2523 specific (buffer) to most general (global). If we find an instance,
|
|
|
2524 return it. Otherwise return Qunbound. */
|
|
|
2525
|
|
|
2526 #define CHECK_INSTANCE_ENTRY(key, matchspec, type) do { \
|
|
|
2527 Lisp_Object *CIE_inst_list = \
|
|
|
2528 specifier_get_inst_list (specifier, key, type); \
|
|
|
2529 if (CIE_inst_list) \
|
|
|
2530 { \
|
|
|
2531 Lisp_Object CIE_val = \
|
|
|
2532 specifier_instance_from_inst_list (specifier, matchspec, \
|
|
|
2533 domain, *CIE_inst_list, \
|
|
|
2534 errb, no_quit, depth); \
|
|
|
2535 if (!UNBOUNDP (CIE_val)) \
|
|
|
2536 return CIE_val; \
|
|
|
2537 } \
|
|
|
2538 } while (0)
|
|
|
2539
|
|
|
2540 /* We accept any window, frame or device domain and do our checking
|
|
|
2541 starting from as specific a locale type as we can determine from the
|
|
|
2542 domain we are passed and going on up through as many other locale types
|
|
|
2543 as we can determine. In practice, when called from redisplay the
|
|
|
2544 arg will usually be a window and occasionally a frame. If
|
|
|
2545 triggered by a user call, who knows what it will usually be. */
|
|
|
2546 Lisp_Object
|
|
|
2547 specifier_instance (Lisp_Object specifier, Lisp_Object matchspec,
|
|
|
2548 Lisp_Object domain, Error_behavior errb, int no_quit,
|
|
|
2549 int no_fallback, Lisp_Object depth)
|
|
|
2550 {
|
|
|
2551 Lisp_Object buffer = Qnil;
|
|
|
2552 Lisp_Object window = Qnil;
|
|
|
2553 Lisp_Object frame = Qnil;
|
|
|
2554 Lisp_Object device = Qnil;
|
|
444
|
2555 Lisp_Object tag = Qnil; /* #### currently unused */
|
|
|
2556 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
428
|
2557
|
|
|
2558 /* Attempt to determine buffer, window, frame, and device from the
|
|
|
2559 domain. */
|
|
442
|
2560 /* #### get image instances out of domains! */
|
|
|
2561 if (IMAGE_INSTANCEP (domain))
|
|
|
2562 window = DOMAIN_WINDOW (domain);
|
|
|
2563 else if (WINDOWP (domain))
|
|
428
|
2564 window = domain;
|
|
|
2565 else if (FRAMEP (domain))
|
|
|
2566 frame = domain;
|
|
|
2567 else if (DEVICEP (domain))
|
|
|
2568 device = domain;
|
|
|
2569 else
|
|
442
|
2570 /* dmoore writes: [dammit, this should just signal an error or something
|
|
|
2571 shouldn't it?]
|
|
|
2572
|
|
|
2573 No. Errors are handled in Lisp primitives implementation.
|
|
428
|
2574 Invalid domain is a design error here - kkm. */
|
|
|
2575 abort ();
|
|
|
2576
|
|
|
2577 if (NILP (buffer) && !NILP (window))
|
|
444
|
2578 buffer = WINDOW_BUFFER (XWINDOW (window));
|
|
428
|
2579 if (NILP (frame) && !NILP (window))
|
|
|
2580 frame = XWINDOW (window)->frame;
|
|
|
2581 if (NILP (device))
|
|
|
2582 /* frame had better exist; if device is undeterminable, something
|
|
|
2583 really went wrong. */
|
|
444
|
2584 device = FRAME_DEVICE (XFRAME (frame));
|
|
428
|
2585
|
|
|
2586 /* device had better be determined by now; abort if not. */
|
|
444
|
2587 tag = DEVICE_CLASS (XDEVICE (device));
|
|
428
|
2588
|
|
|
2589 depth = make_int (1 + XINT (depth));
|
|
|
2590 if (XINT (depth) > 20)
|
|
|
2591 {
|
|
563
|
2592 maybe_signal_error (Qstack_overflow,
|
|
|
2593 "Apparent loop in specifier inheritance",
|
|
|
2594 Qunbound, Qspecifier, errb);
|
|
428
|
2595 /* The specification is fucked; at least try the fallback
|
|
|
2596 (which better not be fucked, because it's not changeable
|
|
|
2597 from Lisp). */
|
|
|
2598 depth = Qzero;
|
|
|
2599 goto do_fallback;
|
|
|
2600 }
|
|
|
2601
|
|
434
|
2602 retry:
|
|
428
|
2603 /* First see if we can generate one from the window specifiers. */
|
|
|
2604 if (!NILP (window))
|
|
|
2605 CHECK_INSTANCE_ENTRY (window, matchspec, LOCALE_WINDOW);
|
|
|
2606
|
|
|
2607 /* Next see if we can generate one from the buffer specifiers. */
|
|
|
2608 if (!NILP (buffer))
|
|
|
2609 CHECK_INSTANCE_ENTRY (buffer, matchspec, LOCALE_BUFFER);
|
|
|
2610
|
|
|
2611 /* Next see if we can generate one from the frame specifiers. */
|
|
|
2612 if (!NILP (frame))
|
|
|
2613 CHECK_INSTANCE_ENTRY (frame, matchspec, LOCALE_FRAME);
|
|
|
2614
|
|
|
2615 /* If we still haven't succeeded try with the device specifiers. */
|
|
|
2616 CHECK_INSTANCE_ENTRY (device, matchspec, LOCALE_DEVICE);
|
|
|
2617
|
|
|
2618 /* Last and least try the global specifiers. */
|
|
|
2619 CHECK_INSTANCE_ENTRY (Qglobal, matchspec, LOCALE_GLOBAL);
|
|
|
2620
|
|
434
|
2621 do_fallback:
|
|
428
|
2622 /* We're out of specifiers and we still haven't generated an
|
|
|
2623 instance. At least try the fallback ... If this fails,
|
|
|
2624 then we just return Qunbound. */
|
|
|
2625
|
|
|
2626 if (no_fallback || NILP (sp->fallback))
|
|
|
2627 /* I said, I don't want the fallbacks. */
|
|
|
2628 return Qunbound;
|
|
|
2629
|
|
|
2630 if (SPECIFIERP (sp->fallback))
|
|
|
2631 {
|
|
|
2632 /* If you introduced loops in the default specifier chain,
|
|
|
2633 then you're fucked, so you better not do this. */
|
|
|
2634 specifier = sp->fallback;
|
|
|
2635 sp = XSPECIFIER (specifier);
|
|
|
2636 goto retry;
|
|
|
2637 }
|
|
|
2638
|
|
|
2639 assert (CONSP (sp->fallback));
|
|
|
2640 return specifier_instance_from_inst_list (specifier, matchspec, domain,
|
|
|
2641 sp->fallback, errb, no_quit,
|
|
|
2642 depth);
|
|
|
2643 }
|
|
|
2644 #undef CHECK_INSTANCE_ENTRY
|
|
|
2645
|
|
|
2646 Lisp_Object
|
|
|
2647 specifier_instance_no_quit (Lisp_Object specifier, Lisp_Object matchspec,
|
|
|
2648 Lisp_Object domain, Error_behavior errb,
|
|
|
2649 int no_fallback, Lisp_Object depth)
|
|
|
2650 {
|
|
|
2651 return specifier_instance (specifier, matchspec, domain, errb,
|
|
|
2652 1, no_fallback, depth);
|
|
|
2653 }
|
|
|
2654
|
|
|
2655 DEFUN ("specifier-instance", Fspecifier_instance, 1, 4, 0, /*
|
|
|
2656 Instantiate SPECIFIER (return its value) in DOMAIN.
|
|
|
2657 If no instance can be generated for this domain, return DEFAULT.
|
|
|
2658
|
|
|
2659 DOMAIN should be a window, frame, or device. Other values that are legal
|
|
|
2660 as a locale (e.g. a buffer) are not valid as a domain because they do not
|
|
|
2661 provide enough information to identify a particular device (see
|
|
|
2662 `valid-specifier-domain-p'). DOMAIN defaults to the selected window
|
|
|
2663 if omitted.
|
|
|
2664
|
|
|
2665 "Instantiating" a specifier in a particular domain means determining
|
|
|
2666 the specifier's "value" in that domain. This is accomplished by
|
|
|
2667 searching through the specifications in the specifier that correspond
|
|
|
2668 to all locales that can be derived from the given domain, from specific
|
|
|
2669 to general. In most cases, the domain is an Emacs window. In that case
|
|
|
2670 specifications are searched for as follows:
|
|
|
2671
|
|
|
2672 1. A specification whose locale is the window itself;
|
|
|
2673 2. A specification whose locale is the window's buffer;
|
|
|
2674 3. A specification whose locale is the window's frame;
|
|
|
2675 4. A specification whose locale is the window's frame's device;
|
|
|
2676 5. A specification whose locale is 'global.
|
|
|
2677
|
|
|
2678 If all of those fail, then the C-code-provided fallback value for
|
|
|
2679 this specifier is consulted (see `specifier-fallback'). If it is
|
|
|
2680 an inst-list, then this function attempts to instantiate that list
|
|
|
2681 just as when a specification is located in the first five steps above.
|
|
|
2682 If the fallback is a specifier, `specifier-instance' is called
|
|
|
2683 recursively on this specifier and the return value used. Note,
|
|
|
2684 however, that if the optional argument NO-FALLBACK is non-nil,
|
|
|
2685 the fallback value will not be consulted.
|
|
|
2686
|
|
|
2687 Note that there may be more than one specification matching a particular
|
|
|
2688 locale; all such specifications are considered before looking for any
|
|
|
2689 specifications for more general locales. Any particular specification
|
|
|
2690 that is found may be rejected because its tag set does not match the
|
|
|
2691 device being instantiated over, or because the specification is not
|
|
|
2692 valid for the device of the given domain (e.g. the font or color name
|
|
|
2693 does not exist for this particular X server).
|
|
|
2694
|
|
|
2695 The returned value is dependent on the type of specifier. For example,
|
|
|
2696 for a font specifier (as returned by the `face-font' function), the returned
|
|
|
2697 value will be a font-instance object. For glyphs, the returned value
|
|
|
2698 will be a string, pixmap, or subwindow.
|
|
|
2699
|
|
|
2700 See also `specifier-matching-instance'.
|
|
|
2701 */
|
|
|
2702 (specifier, domain, default_, no_fallback))
|
|
|
2703 {
|
|
|
2704 Lisp_Object instance;
|
|
|
2705
|
|
|
2706 CHECK_SPECIFIER (specifier);
|
|
|
2707 domain = decode_domain (domain);
|
|
|
2708
|
|
|
2709 instance = specifier_instance (specifier, Qunbound, domain, ERROR_ME, 0,
|
|
|
2710 !NILP (no_fallback), Qzero);
|
|
|
2711 return UNBOUNDP (instance) ? default_ : instance;
|
|
|
2712 }
|
|
|
2713
|
|
|
2714 DEFUN ("specifier-matching-instance", Fspecifier_matching_instance, 2, 5, 0, /*
|
|
|
2715 Return an instance for SPECIFIER in DOMAIN that matches MATCHSPEC.
|
|
|
2716 If no instance can be generated for this domain, return DEFAULT.
|
|
|
2717
|
|
|
2718 This function is identical to `specifier-instance' except that a
|
|
|
2719 specification will only be considered if it matches MATCHSPEC.
|
|
|
2720 The definition of "match", and allowed values for MATCHSPEC, are
|
|
|
2721 dependent on the particular type of specifier. Here are some examples:
|
|
|
2722
|
|
|
2723 -- For chartable (e.g. display table) specifiers, MATCHSPEC should be a
|
|
|
2724 character, and the specification (a chartable) must give a value for
|
|
|
2725 that character in order to be considered. This allows you to specify,
|
|
|
2726 e.g., a buffer-local display table that only gives values for particular
|
|
|
2727 characters. All other characters are handled as if the buffer-local
|
|
|
2728 display table is not there. (Chartable specifiers are not yet
|
|
|
2729 implemented.)
|
|
|
2730
|
|
|
2731 -- For font specifiers, MATCHSPEC should be a charset, and the specification
|
|
|
2732 (a font string) must have a registry that matches the charset's registry.
|
|
|
2733 (This only makes sense with Mule support.) This makes it easy to choose a
|
|
|
2734 font that can display a particular character. (This is what redisplay
|
|
|
2735 does, in fact.)
|
|
|
2736 */
|
|
|
2737 (specifier, matchspec, domain, default_, no_fallback))
|
|
|
2738 {
|
|
|
2739 Lisp_Object instance;
|
|
|
2740
|
|
|
2741 CHECK_SPECIFIER (specifier);
|
|
|
2742 check_valid_specifier_matchspec (matchspec, XSPECIFIER (specifier)->methods,
|
|
|
2743 ERROR_ME);
|
|
|
2744 domain = decode_domain (domain);
|
|
|
2745
|
|
|
2746 instance = specifier_instance (specifier, matchspec, domain, ERROR_ME,
|
|
|
2747 0, !NILP (no_fallback), Qzero);
|
|
|
2748 return UNBOUNDP (instance) ? default_ : instance;
|
|
|
2749 }
|
|
|
2750
|
|
|
2751 DEFUN ("specifier-instance-from-inst-list", Fspecifier_instance_from_inst_list,
|
|
|
2752 3, 4, 0, /*
|
|
|
2753 Attempt to convert a particular inst-list into an instance.
|
|
|
2754 This attempts to instantiate INST-LIST in the given DOMAIN,
|
|
|
2755 as if INST-LIST existed in a specification in SPECIFIER. If
|
|
|
2756 the instantiation fails, DEFAULT is returned. In most circumstances,
|
|
|
2757 you should not use this function; use `specifier-instance' instead.
|
|
|
2758 */
|
|
|
2759 (specifier, domain, inst_list, default_))
|
|
|
2760 {
|
|
|
2761 Lisp_Object val = Qunbound;
|
|
440
|
2762 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
428
|
2763 struct gcpro gcpro1;
|
|
|
2764 Lisp_Object built_up_list = Qnil;
|
|
|
2765
|
|
|
2766 CHECK_SPECIFIER (specifier);
|
|
|
2767 check_valid_domain (domain);
|
|
|
2768 check_valid_inst_list (inst_list, sp->methods, ERROR_ME);
|
|
|
2769 GCPRO1 (built_up_list);
|
|
|
2770 built_up_list = build_up_processed_list (specifier, domain, inst_list);
|
|
|
2771 if (!NILP (built_up_list))
|
|
|
2772 val = specifier_instance_from_inst_list (specifier, Qunbound, domain,
|
|
|
2773 built_up_list, ERROR_ME,
|
|
|
2774 0, Qzero);
|
|
|
2775 UNGCPRO;
|
|
|
2776 return UNBOUNDP (val) ? default_ : val;
|
|
|
2777 }
|
|
|
2778
|
|
442
|
2779 DEFUN ("specifier-matching-instance-from-inst-list",
|
|
|
2780 Fspecifier_matching_instance_from_inst_list,
|
|
428
|
2781 4, 5, 0, /*
|
|
|
2782 Attempt to convert a particular inst-list into an instance.
|
|
|
2783 This attempts to instantiate INST-LIST in the given DOMAIN
|
|
|
2784 \(as if INST-LIST existed in a specification in SPECIFIER),
|
|
|
2785 matching the specifications against MATCHSPEC.
|
|
|
2786
|
|
|
2787 This function is analogous to `specifier-instance-from-inst-list'
|
|
|
2788 but allows for specification-matching as in `specifier-matching-instance'.
|
|
|
2789 See that function for a description of exactly how the matching process
|
|
|
2790 works.
|
|
|
2791 */
|
|
|
2792 (specifier, matchspec, domain, inst_list, default_))
|
|
|
2793 {
|
|
|
2794 Lisp_Object val = Qunbound;
|
|
440
|
2795 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
428
|
2796 struct gcpro gcpro1;
|
|
|
2797 Lisp_Object built_up_list = Qnil;
|
|
|
2798
|
|
|
2799 CHECK_SPECIFIER (specifier);
|
|
|
2800 check_valid_specifier_matchspec (matchspec, XSPECIFIER (specifier)->methods,
|
|
|
2801 ERROR_ME);
|
|
|
2802 check_valid_domain (domain);
|
|
|
2803 check_valid_inst_list (inst_list, sp->methods, ERROR_ME);
|
|
|
2804 GCPRO1 (built_up_list);
|
|
|
2805 built_up_list = build_up_processed_list (specifier, domain, inst_list);
|
|
|
2806 if (!NILP (built_up_list))
|
|
|
2807 val = specifier_instance_from_inst_list (specifier, matchspec, domain,
|
|
|
2808 built_up_list, ERROR_ME,
|
|
|
2809 0, Qzero);
|
|
|
2810 UNGCPRO;
|
|
|
2811 return UNBOUNDP (val) ? default_ : val;
|
|
|
2812 }
|
|
|
2813
|
|
|
2814
|
|
|
2815 /************************************************************************/
|
|
|
2816 /* Caching in the struct window or frame */
|
|
|
2817 /************************************************************************/
|
|
|
2818
|
|
|
2819 /* Either STRUCT_WINDOW_OFFSET or STRUCT_FRAME_OFFSET can be 0 to indicate
|
|
|
2820 no caching in that sort of object. */
|
|
|
2821
|
|
|
2822 /* #### It would be nice if the specifier caching automatically knew
|
|
|
2823 about specifier fallbacks, so we didn't have to do it ourselves. */
|
|
|
2824
|
|
|
2825 void
|
|
|
2826 set_specifier_caching (Lisp_Object specifier, int struct_window_offset,
|
|
|
2827 void (*value_changed_in_window)
|
|
|
2828 (Lisp_Object specifier, struct window *w,
|
|
|
2829 Lisp_Object oldval),
|
|
|
2830 int struct_frame_offset,
|
|
|
2831 void (*value_changed_in_frame)
|
|
|
2832 (Lisp_Object specifier, struct frame *f,
|
|
444
|
2833 Lisp_Object oldval),
|
|
|
2834 int always_recompute)
|
|
428
|
2835 {
|
|
440
|
2836 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
428
|
2837 assert (!GHOST_SPECIFIER_P (sp));
|
|
|
2838
|
|
|
2839 if (!sp->caching)
|
|
|
2840 sp->caching = xnew_and_zero (struct specifier_caching);
|
|
|
2841 sp->caching->offset_into_struct_window = struct_window_offset;
|
|
|
2842 sp->caching->value_changed_in_window = value_changed_in_window;
|
|
|
2843 sp->caching->offset_into_struct_frame = struct_frame_offset;
|
|
|
2844 sp->caching->value_changed_in_frame = value_changed_in_frame;
|
|
444
|
2845 sp->caching->always_recompute = always_recompute;
|
|
428
|
2846 Vcached_specifiers = Fcons (specifier, Vcached_specifiers);
|
|
|
2847 if (BODILY_SPECIFIER_P (sp))
|
|
|
2848 GHOST_SPECIFIER(sp)->caching = sp->caching;
|
|
|
2849 recompute_cached_specifier_everywhere (specifier);
|
|
|
2850 }
|
|
|
2851
|
|
|
2852 static void
|
|
|
2853 recompute_one_cached_specifier_in_window (Lisp_Object specifier,
|
|
|
2854 struct window *w)
|
|
|
2855 {
|
|
|
2856 Lisp_Object window;
|
|
444
|
2857 Lisp_Object newval, *location, oldval;
|
|
428
|
2858
|
|
|
2859 assert (!GHOST_SPECIFIER_P (XSPECIFIER (specifier)));
|
|
|
2860
|
|
|
2861 XSETWINDOW (window, w);
|
|
|
2862
|
|
|
2863 newval = specifier_instance (specifier, Qunbound, window, ERROR_ME_WARN,
|
|
|
2864 0, 0, Qzero);
|
|
|
2865 /* If newval ended up Qunbound, then the calling functions
|
|
|
2866 better be able to deal. If not, set a default so this
|
|
|
2867 never happens or correct it in the value_changed_in_window
|
|
|
2868 method. */
|
|
|
2869 location = (Lisp_Object *)
|
|
|
2870 ((char *) w + XSPECIFIER (specifier)->caching->offset_into_struct_window);
|
|
442
|
2871 /* #### What's the point of this check, other than to optimize image
|
|
|
2872 instance instantiation? Unless you specify a caching instantiate
|
|
|
2873 method the instantiation that specifier_instance will do will
|
|
|
2874 always create a new copy. Thus EQ will always fail. Unfortunately
|
|
|
2875 calling equal is no good either as this doesn't take into account
|
|
|
2876 things attached to the specifier - for instance strings on
|
|
|
2877 extents. --andyp */
|
|
444
|
2878 if (!EQ (newval, *location) || XSPECIFIER (specifier)->caching->always_recompute)
|
|
428
|
2879 {
|
|
444
|
2880 oldval = *location;
|
|
428
|
2881 *location = newval;
|
|
|
2882 (XSPECIFIER (specifier)->caching->value_changed_in_window)
|
|
|
2883 (specifier, w, oldval);
|
|
|
2884 }
|
|
|
2885 }
|
|
|
2886
|
|
|
2887 static void
|
|
|
2888 recompute_one_cached_specifier_in_frame (Lisp_Object specifier,
|
|
|
2889 struct frame *f)
|
|
|
2890 {
|
|
|
2891 Lisp_Object frame;
|
|
444
|
2892 Lisp_Object newval, *location, oldval;
|
|
428
|
2893
|
|
|
2894 assert (!GHOST_SPECIFIER_P (XSPECIFIER (specifier)));
|
|
|
2895
|
|
|
2896 XSETFRAME (frame, f);
|
|
|
2897
|
|
|
2898 newval = specifier_instance (specifier, Qunbound, frame, ERROR_ME_WARN,
|
|
|
2899 0, 0, Qzero);
|
|
|
2900 /* If newval ended up Qunbound, then the calling functions
|
|
|
2901 better be able to deal. If not, set a default so this
|
|
|
2902 never happens or correct it in the value_changed_in_frame
|
|
|
2903 method. */
|
|
|
2904 location = (Lisp_Object *)
|
|
|
2905 ((char *) f + XSPECIFIER (specifier)->caching->offset_into_struct_frame);
|
|
444
|
2906 if (!EQ (newval, *location) || XSPECIFIER (specifier)->caching->always_recompute)
|
|
428
|
2907 {
|
|
444
|
2908 oldval = *location;
|
|
428
|
2909 *location = newval;
|
|
|
2910 (XSPECIFIER (specifier)->caching->value_changed_in_frame)
|
|
|
2911 (specifier, f, oldval);
|
|
|
2912 }
|
|
|
2913 }
|
|
|
2914
|
|
|
2915 void
|
|
|
2916 recompute_all_cached_specifiers_in_window (struct window *w)
|
|
|
2917 {
|
|
|
2918 Lisp_Object rest;
|
|
|
2919
|
|
|
2920 LIST_LOOP (rest, Vcached_specifiers)
|
|
|
2921 {
|
|
|
2922 Lisp_Object specifier = XCAR (rest);
|
|
|
2923 if (XSPECIFIER (specifier)->caching->offset_into_struct_window)
|
|
|
2924 recompute_one_cached_specifier_in_window (specifier, w);
|
|
|
2925 }
|
|
|
2926 }
|
|
|
2927
|
|
|
2928 void
|
|
|
2929 recompute_all_cached_specifiers_in_frame (struct frame *f)
|
|
|
2930 {
|
|
|
2931 Lisp_Object rest;
|
|
|
2932
|
|
|
2933 LIST_LOOP (rest, Vcached_specifiers)
|
|
|
2934 {
|
|
|
2935 Lisp_Object specifier = XCAR (rest);
|
|
|
2936 if (XSPECIFIER (specifier)->caching->offset_into_struct_frame)
|
|
|
2937 recompute_one_cached_specifier_in_frame (specifier, f);
|
|
|
2938 }
|
|
|
2939 }
|
|
|
2940
|
|
|
2941 static int
|
|
|
2942 recompute_cached_specifier_everywhere_mapfun (struct window *w,
|
|
|
2943 void *closure)
|
|
|
2944 {
|
|
|
2945 Lisp_Object specifier = Qnil;
|
|
|
2946
|
|
|
2947 VOID_TO_LISP (specifier, closure);
|
|
|
2948 recompute_one_cached_specifier_in_window (specifier, w);
|
|
|
2949 return 0;
|
|
|
2950 }
|
|
|
2951
|
|
|
2952 static void
|
|
|
2953 recompute_cached_specifier_everywhere (Lisp_Object specifier)
|
|
|
2954 {
|
|
|
2955 Lisp_Object frmcons, devcons, concons;
|
|
|
2956
|
|
|
2957 specifier = bodily_specifier (specifier);
|
|
|
2958
|
|
|
2959 if (!XSPECIFIER (specifier)->caching)
|
|
|
2960 return;
|
|
|
2961
|
|
|
2962 if (XSPECIFIER (specifier)->caching->offset_into_struct_window)
|
|
|
2963 {
|
|
|
2964 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
2965 map_windows (XFRAME (XCAR (frmcons)),
|
|
|
2966 recompute_cached_specifier_everywhere_mapfun,
|
|
|
2967 LISP_TO_VOID (specifier));
|
|
|
2968 }
|
|
|
2969
|
|
|
2970 if (XSPECIFIER (specifier)->caching->offset_into_struct_frame)
|
|
|
2971 {
|
|
|
2972 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
2973 recompute_one_cached_specifier_in_frame (specifier,
|
|
|
2974 XFRAME (XCAR (frmcons)));
|
|
|
2975 }
|
|
|
2976 }
|
|
|
2977
|
|
|
2978 DEFUN ("set-specifier-dirty-flag", Fset_specifier_dirty_flag, 1, 1, 0, /*
|
|
|
2979 Force recomputation of any caches associated with SPECIFIER.
|
|
|
2980 Note that this automatically happens whenever you change a specification
|
|
|
2981 in SPECIFIER; you do not have to call this function then.
|
|
|
2982 One example of where this function is useful is when you have a
|
|
|
2983 toolbar button whose `active-p' field is an expression to be
|
|
|
2984 evaluated. Calling `set-specifier-dirty-flag' on the
|
|
|
2985 toolbar specifier will force the `active-p' fields to be
|
|
|
2986 recomputed.
|
|
|
2987 */
|
|
|
2988 (specifier))
|
|
|
2989 {
|
|
|
2990 CHECK_SPECIFIER (specifier);
|
|
|
2991 recompute_cached_specifier_everywhere (specifier);
|
|
|
2992 return Qnil;
|
|
|
2993 }
|
|
|
2994
|
|
|
2995
|
|
|
2996 /************************************************************************/
|
|
|
2997 /* Generic specifier type */
|
|
|
2998 /************************************************************************/
|
|
|
2999
|
|
|
3000 DEFINE_SPECIFIER_TYPE (generic);
|
|
|
3001
|
|
|
3002 #if 0
|
|
|
3003
|
|
|
3004 /* This is the string that used to be in `generic-specifier-p'.
|
|
|
3005 The idea is good, but it doesn't quite work in the form it's
|
|
|
3006 in. (One major problem is that validating an instantiator
|
|
|
3007 is supposed to require only that the specifier type is passed,
|
|
|
3008 while with this approach the actual specifier is needed.)
|
|
|
3009
|
|
|
3010 What really needs to be done is to write a function
|
|
|
3011 `make-specifier-type' that creates new specifier types.
|
|
442
|
3012
|
|
|
3013 #### [I'll look into this for 19.14.] Well, sometime. (Currently
|
|
|
3014 May 2000, 21.2 is in development. 19.14 was released in June 1996.) */
|
|
428
|
3015
|
|
|
3016 "A generic specifier is a generalized kind of specifier with user-defined\n"
|
|
|
3017 "semantics. The instantiator can be any kind of Lisp object, and the\n"
|
|
|
3018 "instance computed from it is likewise any kind of Lisp object. The\n"
|
|
|
3019 "SPECIFIER-DATA should be an alist of methods governing how the specifier\n"
|
|
|
3020 "works. All methods are optional, and reasonable default methods will be\n"
|
|
|
3021 "provided. Currently there are two defined methods: 'instantiate and\n"
|
|
|
3022 "'validate.\n"
|
|
|
3023 "\n"
|
|
|
3024 "'instantiate specifies how to do the instantiation; if omitted, the\n"
|
|
|
3025 "instantiator itself is simply returned as the instance. The method\n"
|
|
|
3026 "should be a function that accepts three parameters (a specifier, the\n"
|
|
|
3027 "instantiator that matched the domain being instantiated over, and that\n"
|
|
|
3028 "domain), and should return a one-element list containing the instance,\n"
|
|
|
3029 "or nil if no instance exists. Note that the domain passed to this function\n"
|
|
|
3030 "is the domain being instantiated over, which may not be the same as the\n"
|
|
|
3031 "locale contained in the specification corresponding to the instantiator\n"
|
|
|
3032 "(for example, the domain being instantiated over could be a window, but\n"
|
|
|
3033 "the locale corresponding to the passed instantiator could be the window's\n"
|
|
|
3034 "buffer or frame).\n"
|
|
|
3035 "\n"
|
|
|
3036 "'validate specifies whether a given instantiator is valid; if omitted,\n"
|
|
|
3037 "all instantiators are considered valid. It should be a function of\n"
|
|
|
3038 "two arguments: an instantiator and a flag CAN-SIGNAL-ERROR. If this\n"
|
|
|
3039 "flag is false, the function must simply return t or nil indicating\n"
|
|
|
3040 "whether the instantiator is valid. If this flag is true, the function\n"
|
|
|
3041 "is free to signal an error if it encounters an invalid instantiator\n"
|
|
|
3042 "(this can be useful for issuing a specific error about exactly why the\n"
|
|
|
3043 "instantiator is valid). It can also return nil to indicate an invalid\n"
|
|
|
3044 "instantiator; in this case, a general error will be signalled."
|
|
|
3045
|
|
|
3046 #endif /* 0 */
|
|
|
3047
|
|
|
3048 DEFUN ("generic-specifier-p", Fgeneric_specifier_p, 1, 1, 0, /*
|
|
|
3049 Return non-nil if OBJECT is a generic specifier.
|
|
|
3050
|
|
442
|
3051 See `make-generic-specifier' for a description of possible generic
|
|
|
3052 instantiators.
|
|
428
|
3053 */
|
|
|
3054 (object))
|
|
|
3055 {
|
|
|
3056 return GENERIC_SPECIFIERP (object) ? Qt : Qnil;
|
|
|
3057 }
|
|
|
3058
|
|
|
3059
|
|
|
3060 /************************************************************************/
|
|
|
3061 /* Integer specifier type */
|
|
|
3062 /************************************************************************/
|
|
|
3063
|
|
|
3064 DEFINE_SPECIFIER_TYPE (integer);
|
|
|
3065
|
|
|
3066 static void
|
|
|
3067 integer_validate (Lisp_Object instantiator)
|
|
|
3068 {
|
|
|
3069 CHECK_INT (instantiator);
|
|
|
3070 }
|
|
|
3071
|
|
|
3072 DEFUN ("integer-specifier-p", Finteger_specifier_p, 1, 1, 0, /*
|
|
|
3073 Return non-nil if OBJECT is an integer specifier.
|
|
442
|
3074
|
|
|
3075 See `make-integer-specifier' for a description of possible integer
|
|
|
3076 instantiators.
|
|
428
|
3077 */
|
|
|
3078 (object))
|
|
|
3079 {
|
|
|
3080 return INTEGER_SPECIFIERP (object) ? Qt : Qnil;
|
|
|
3081 }
|
|
|
3082
|
|
|
3083 /************************************************************************/
|
|
|
3084 /* Non-negative-integer specifier type */
|
|
|
3085 /************************************************************************/
|
|
|
3086
|
|
|
3087 DEFINE_SPECIFIER_TYPE (natnum);
|
|
|
3088
|
|
|
3089 static void
|
|
|
3090 natnum_validate (Lisp_Object instantiator)
|
|
|
3091 {
|
|
|
3092 CHECK_NATNUM (instantiator);
|
|
|
3093 }
|
|
|
3094
|
|
|
3095 DEFUN ("natnum-specifier-p", Fnatnum_specifier_p, 1, 1, 0, /*
|
|
|
3096 Return non-nil if OBJECT is a natnum (non-negative-integer) specifier.
|
|
442
|
3097
|
|
|
3098 See `make-natnum-specifier' for a description of possible natnum
|
|
|
3099 instantiators.
|
|
428
|
3100 */
|
|
|
3101 (object))
|
|
|
3102 {
|
|
|
3103 return NATNUM_SPECIFIERP (object) ? Qt : Qnil;
|
|
|
3104 }
|
|
|
3105
|
|
|
3106 /************************************************************************/
|
|
|
3107 /* Boolean specifier type */
|
|
|
3108 /************************************************************************/
|
|
|
3109
|
|
|
3110 DEFINE_SPECIFIER_TYPE (boolean);
|
|
|
3111
|
|
|
3112 static void
|
|
|
3113 boolean_validate (Lisp_Object instantiator)
|
|
|
3114 {
|
|
|
3115 if (!EQ (instantiator, Qt) && !EQ (instantiator, Qnil))
|
|
563
|
3116 invalid_constant ("Must be t or nil", instantiator);
|
|
428
|
3117 }
|
|
|
3118
|
|
|
3119 DEFUN ("boolean-specifier-p", Fboolean_specifier_p, 1, 1, 0, /*
|
|
|
3120 Return non-nil if OBJECT is a boolean specifier.
|
|
442
|
3121
|
|
|
3122 See `make-boolean-specifier' for a description of possible boolean
|
|
|
3123 instantiators.
|
|
428
|
3124 */
|
|
|
3125 (object))
|
|
|
3126 {
|
|
|
3127 return BOOLEAN_SPECIFIERP (object) ? Qt : Qnil;
|
|
|
3128 }
|
|
|
3129
|
|
|
3130 /************************************************************************/
|
|
|
3131 /* Display table specifier type */
|
|
|
3132 /************************************************************************/
|
|
|
3133
|
|
|
3134 DEFINE_SPECIFIER_TYPE (display_table);
|
|
|
3135
|
|
442
|
3136 #define VALID_SINGLE_DISPTABLE_INSTANTIATOR_P(instantiator) \
|
|
|
3137 (VECTORP (instantiator) \
|
|
|
3138 || (CHAR_TABLEP (instantiator) \
|
|
|
3139 && (XCHAR_TABLE_TYPE (instantiator) == CHAR_TABLE_TYPE_CHAR \
|
|
|
3140 || XCHAR_TABLE_TYPE (instantiator) == CHAR_TABLE_TYPE_GENERIC)) \
|
|
428
|
3141 || RANGE_TABLEP (instantiator))
|
|
|
3142
|
|
|
3143 static void
|
|
|
3144 display_table_validate (Lisp_Object instantiator)
|
|
|
3145 {
|
|
|
3146 if (NILP (instantiator))
|
|
|
3147 /* OK */
|
|
|
3148 ;
|
|
|
3149 else if (CONSP (instantiator))
|
|
|
3150 {
|
|
|
3151 Lisp_Object tail;
|
|
|
3152 EXTERNAL_LIST_LOOP (tail, instantiator)
|
|
|
3153 {
|
|
|
3154 Lisp_Object car = XCAR (tail);
|
|
|
3155 if (!VALID_SINGLE_DISPTABLE_INSTANTIATOR_P (car))
|
|
|
3156 goto lose;
|
|
|
3157 }
|
|
|
3158 }
|
|
|
3159 else
|
|
|
3160 {
|
|
|
3161 if (!VALID_SINGLE_DISPTABLE_INSTANTIATOR_P (instantiator))
|
|
|
3162 {
|
|
|
3163 lose:
|
|
442
|
3164 dead_wrong_type_argument
|
|
|
3165 (display_table_specifier_methods->predicate_symbol,
|
|
428
|
3166 instantiator);
|
|
|
3167 }
|
|
|
3168 }
|
|
|
3169 }
|
|
|
3170
|
|
|
3171 DEFUN ("display-table-specifier-p", Fdisplay_table_specifier_p, 1, 1, 0, /*
|
|
|
3172 Return non-nil if OBJECT is a display-table specifier.
|
|
442
|
3173
|
|
|
3174 See `current-display-table' for a description of possible display-table
|
|
|
3175 instantiators.
|
|
428
|
3176 */
|
|
|
3177 (object))
|
|
|
3178 {
|
|
|
3179 return DISPLAYTABLE_SPECIFIERP (object) ? Qt : Qnil;
|
|
|
3180 }
|
|
|
3181
|
|
|
3182
|
|
|
3183 /************************************************************************/
|
|
|
3184 /* Initialization */
|
|
|
3185 /************************************************************************/
|
|
|
3186
|
|
|
3187 void
|
|
|
3188 syms_of_specifier (void)
|
|
|
3189 {
|
|
442
|
3190 INIT_LRECORD_IMPLEMENTATION (specifier);
|
|
|
3191
|
|
|
3192 DEFSYMBOL (Qspecifierp);
|
|
|
3193
|
|
|
3194 DEFSYMBOL (Qconsole_type);
|
|
|
3195 DEFSYMBOL (Qdevice_class);
|
|
|
3196
|
|
|
3197 /* specifier types defined in general.c. */
|
|
428
|
3198
|
|
|
3199 DEFSUBR (Fvalid_specifier_type_p);
|
|
|
3200 DEFSUBR (Fspecifier_type_list);
|
|
|
3201 DEFSUBR (Fmake_specifier);
|
|
|
3202 DEFSUBR (Fspecifierp);
|
|
|
3203 DEFSUBR (Fspecifier_type);
|
|
|
3204
|
|
|
3205 DEFSUBR (Fvalid_specifier_locale_p);
|
|
|
3206 DEFSUBR (Fvalid_specifier_domain_p);
|
|
|
3207 DEFSUBR (Fvalid_specifier_locale_type_p);
|
|
|
3208 DEFSUBR (Fspecifier_locale_type_from_locale);
|
|
|
3209
|
|
|
3210 DEFSUBR (Fvalid_specifier_tag_p);
|
|
|
3211 DEFSUBR (Fvalid_specifier_tag_set_p);
|
|
|
3212 DEFSUBR (Fcanonicalize_tag_set);
|
|
|
3213 DEFSUBR (Fdevice_matches_specifier_tag_set_p);
|
|
|
3214 DEFSUBR (Fdefine_specifier_tag);
|
|
|
3215 DEFSUBR (Fdevice_matching_specifier_tag_list);
|
|
|
3216 DEFSUBR (Fspecifier_tag_list);
|
|
|
3217 DEFSUBR (Fspecifier_tag_predicate);
|
|
|
3218
|
|
|
3219 DEFSUBR (Fcheck_valid_instantiator);
|
|
|
3220 DEFSUBR (Fvalid_instantiator_p);
|
|
|
3221 DEFSUBR (Fcheck_valid_inst_list);
|
|
|
3222 DEFSUBR (Fvalid_inst_list_p);
|
|
|
3223 DEFSUBR (Fcheck_valid_spec_list);
|
|
|
3224 DEFSUBR (Fvalid_spec_list_p);
|
|
|
3225 DEFSUBR (Fadd_spec_to_specifier);
|
|
|
3226 DEFSUBR (Fadd_spec_list_to_specifier);
|
|
|
3227 DEFSUBR (Fspecifier_spec_list);
|
|
|
3228 DEFSUBR (Fspecifier_specs);
|
|
|
3229 DEFSUBR (Fremove_specifier);
|
|
|
3230 DEFSUBR (Fcopy_specifier);
|
|
|
3231
|
|
|
3232 DEFSUBR (Fcheck_valid_specifier_matchspec);
|
|
|
3233 DEFSUBR (Fvalid_specifier_matchspec_p);
|
|
|
3234 DEFSUBR (Fspecifier_fallback);
|
|
|
3235 DEFSUBR (Fspecifier_instance);
|
|
|
3236 DEFSUBR (Fspecifier_matching_instance);
|
|
|
3237 DEFSUBR (Fspecifier_instance_from_inst_list);
|
|
|
3238 DEFSUBR (Fspecifier_matching_instance_from_inst_list);
|
|
|
3239 DEFSUBR (Fset_specifier_dirty_flag);
|
|
|
3240
|
|
|
3241 DEFSUBR (Fgeneric_specifier_p);
|
|
|
3242 DEFSUBR (Finteger_specifier_p);
|
|
|
3243 DEFSUBR (Fnatnum_specifier_p);
|
|
|
3244 DEFSUBR (Fboolean_specifier_p);
|
|
|
3245 DEFSUBR (Fdisplay_table_specifier_p);
|
|
|
3246
|
|
|
3247 /* Symbols pertaining to specifier creation. Specifiers are created
|
|
|
3248 in the syms_of() functions. */
|
|
|
3249
|
|
|
3250 /* locales are defined in general.c. */
|
|
|
3251
|
|
442
|
3252 /* some how-to-add flags in general.c. */
|
|
|
3253 DEFSYMBOL (Qremove_tag_set_prepend);
|
|
|
3254 DEFSYMBOL (Qremove_tag_set_append);
|
|
|
3255 DEFSYMBOL (Qremove_locale);
|
|
|
3256 DEFSYMBOL (Qremove_locale_type);
|
|
428
|
3257 }
|
|
|
3258
|
|
|
3259 void
|
|
|
3260 specifier_type_create (void)
|
|
|
3261 {
|
|
|
3262 the_specifier_type_entry_dynarr = Dynarr_new (specifier_type_entry);
|
|
452
|
3263 dump_add_root_struct_ptr (&the_specifier_type_entry_dynarr, &sted_description);
|
|
428
|
3264
|
|
|
3265 Vspecifier_type_list = Qnil;
|
|
|
3266 staticpro (&Vspecifier_type_list);
|
|
|
3267
|
|
|
3268 INITIALIZE_SPECIFIER_TYPE (generic, "generic", "generic-specifier-p");
|
|
|
3269
|
|
|
3270 INITIALIZE_SPECIFIER_TYPE (integer, "integer", "integer-specifier-p");
|
|
|
3271
|
|
|
3272 SPECIFIER_HAS_METHOD (integer, validate);
|
|
|
3273
|
|
|
3274 INITIALIZE_SPECIFIER_TYPE (natnum, "natnum", "natnum-specifier-p");
|
|
|
3275
|
|
|
3276 SPECIFIER_HAS_METHOD (natnum, validate);
|
|
|
3277
|
|
|
3278 INITIALIZE_SPECIFIER_TYPE (boolean, "boolean", "boolean-specifier-p");
|
|
|
3279
|
|
|
3280 SPECIFIER_HAS_METHOD (boolean, validate);
|
|
|
3281
|
|
442
|
3282 INITIALIZE_SPECIFIER_TYPE (display_table, "display-table",
|
|
|
3283 "display-table-p");
|
|
428
|
3284
|
|
|
3285 SPECIFIER_HAS_METHOD (display_table, validate);
|
|
|
3286 }
|
|
|
3287
|
|
|
3288 void
|
|
|
3289 reinit_specifier_type_create (void)
|
|
|
3290 {
|
|
|
3291 REINITIALIZE_SPECIFIER_TYPE (generic);
|
|
|
3292 REINITIALIZE_SPECIFIER_TYPE (integer);
|
|
|
3293 REINITIALIZE_SPECIFIER_TYPE (natnum);
|
|
|
3294 REINITIALIZE_SPECIFIER_TYPE (boolean);
|
|
|
3295 REINITIALIZE_SPECIFIER_TYPE (display_table);
|
|
|
3296 }
|
|
|
3297
|
|
|
3298 void
|
|
|
3299 vars_of_specifier (void)
|
|
|
3300 {
|
|
|
3301 Vcached_specifiers = Qnil;
|
|
|
3302 staticpro (&Vcached_specifiers);
|
|
|
3303
|
|
|
3304 /* Do NOT mark through this, or specifiers will never be GC'd.
|
|
|
3305 This is the same deal as for weak hash tables. */
|
|
|
3306 Vall_specifiers = Qnil;
|
|
452
|
3307 dump_add_weak_object_chain (&Vall_specifiers);
|
|
428
|
3308
|
|
|
3309 Vuser_defined_tags = Qnil;
|
|
|
3310 staticpro (&Vuser_defined_tags);
|
|
|
3311
|
|
|
3312 Vunlock_ghost_specifiers = Qnil;
|
|
|
3313 staticpro (&Vunlock_ghost_specifiers);
|
|
|
3314 }
|
