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