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0
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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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280
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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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0
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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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384
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40 #include "chartab.h"
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41 #include "rangetab.h"
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0
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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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276
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53 static Lisp_Object Vuser_defined_tags;
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0
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54
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185
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55 typedef struct specifier_type_entry specifier_type_entry;
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0
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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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185
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62 typedef struct
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0
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63 {
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185
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64 Dynarr_declare (specifier_type_entry);
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0
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65 } specifier_type_entry_dynarr;
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66
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398
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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) },
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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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0
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89
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276
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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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0
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93 /* Do NOT mark through this, or specifiers will never be GC'd. */
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276
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94 static Lisp_Object Vall_specifiers;
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95
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280
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96 static Lisp_Object Vunlock_ghost_specifiers;
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0
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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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70
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102 #### Look into this for 19.14. */
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280
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103 /* static Lisp_Object_dynarr current_specifiers; */
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0
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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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272
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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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0
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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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398
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165 Lisp_Specifier *sp = XSPECIFIER (rest);
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0
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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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398
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192 Lisp_Specifier *sp = XSPECIFIER (rest);
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0
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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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398
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204 mark_specifier (Lisp_Object obj)
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0
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205 {
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398
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206 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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276
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215 if (!GHOST_SPECIFIER_P (XSPECIFIER (obj)))
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398
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216 MAYBE_SPECMETH (specifier, mark, (obj));
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0
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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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398
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240 prune_specifiers (void)
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0
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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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398
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245 !NILP (rest);
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0
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246 rest = XSPECIFIER (rest)->next_specifier)
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247 {
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398
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248 if (! marked_p (rest))
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0
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249 {
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398
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250 Lisp_Specifier* sp = XSPECIFIER (rest);
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276
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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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398
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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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0
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256 /* This specifier is garbage. Remove it from the list. */
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398
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257 if (NILP (prev))
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276
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258 Vall_specifiers = sp->next_specifier;
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0
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259 else
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276
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260 XSPECIFIER (prev)->next_specifier = sp->next_specifier;
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0
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261 }
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276
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262 else
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263 prev = rest;
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0
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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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398
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270 Lisp_Specifier *sp = XSPECIFIER (obj);
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0
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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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398
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302 Lisp_Specifier *sp = (Lisp_Specifier *) header;
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0
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303 /* don't be snafued by the disksave finalization. */
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398
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304 if (!for_disksave && !GHOST_SPECIFIER_P(sp) && sp->caching)
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0
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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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380
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312 specifier_equal (Lisp_Object obj1, Lisp_Object obj2, int depth)
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0
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313 {
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398
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314 Lisp_Specifier *s1 = XSPECIFIER (obj1);
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315 Lisp_Specifier *s2 = XSPECIFIER (obj2);
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0
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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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272
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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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280
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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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272
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332
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333 if (retval && HAS_SPECMETH_P (s1, equal))
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380
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334 retval = SPECMETH (s1, equal, (obj1, obj2, depth - 1));
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0
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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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398
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343 Lisp_Specifier *s = XSPECIFIER (obj);
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0
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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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272
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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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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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272
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352 internal_hash (s->frame_specs, depth + 1),
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0
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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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272
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356 static size_t
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398
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357 sizeof_specifier (const void *header)
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0
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358 {
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398
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359 if (GHOST_SPECIFIER_P ((Lisp_Specifier *) header))
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360 return offsetof (Lisp_Specifier, data);
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276
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361 else
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362 {
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398
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363 const Lisp_Specifier *p = (const Lisp_Specifier *) header;
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364 return offsetof (Lisp_Specifier, data) + p->methods->extra_data_size;
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276
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365 }
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0
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366 }
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367
|
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398
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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) },
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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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|
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380 };
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381
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|
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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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|
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387 static const struct lrecord_description specifier_description[] = {
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388 { XD_STRUCT_PTR, offsetof (Lisp_Specifier, methods), 1, &specifier_methods_description },
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|
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389 { XD_LO_LINK, offsetof (Lisp_Specifier, next_specifier) },
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390 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, global_specs) },
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391 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, device_specs) },
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|
|
392 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, frame_specs) },
|
|
|
393 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, window_specs) },
|
|
|
394 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, buffer_specs) },
|
|
|
395 { XD_STRUCT_PTR, offsetof (Lisp_Specifier, caching), 1, &specifier_caching_description },
|
|
|
396 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, magic_parent) },
|
|
|
397 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, fallback) },
|
|
|
398 { XD_SPECIFIER_END }
|
|
|
399 };
|
|
|
400
|
|
|
401 const struct lrecord_description specifier_empty_extra_description[] = {
|
|
|
402 { XD_END }
|
|
|
403 };
|
|
|
404
|
|
272
|
405 DEFINE_LRECORD_SEQUENCE_IMPLEMENTATION ("specifier", specifier,
|
|
|
406 mark_specifier, print_specifier,
|
|
|
407 finalize_specifier,
|
|
|
408 specifier_equal, specifier_hash,
|
|
398
|
409 specifier_description,
|
|
272
|
410 sizeof_specifier,
|
|
398
|
411 Lisp_Specifier);
|
|
0
|
412
|
|
|
413 /************************************************************************/
|
|
|
414 /* Creating specifiers */
|
|
|
415 /************************************************************************/
|
|
|
416
|
|
|
417 static struct specifier_methods *
|
|
|
418 decode_specifier_type (Lisp_Object type, Error_behavior errb)
|
|
|
419 {
|
|
|
420 int i;
|
|
|
421
|
|
|
422 for (i = 0; i < Dynarr_length (the_specifier_type_entry_dynarr); i++)
|
|
|
423 {
|
|
|
424 if (EQ (type, Dynarr_at (the_specifier_type_entry_dynarr, i).symbol))
|
|
|
425 return Dynarr_at (the_specifier_type_entry_dynarr, i).meths;
|
|
|
426 }
|
|
|
427
|
|
|
428 maybe_signal_simple_error ("Invalid specifier type", type,
|
|
|
429 Qspecifier, errb);
|
|
|
430
|
|
|
431 return 0;
|
|
|
432 }
|
|
|
433
|
|
|
434 static int
|
|
|
435 valid_specifier_type_p (Lisp_Object type)
|
|
|
436 {
|
|
272
|
437 return decode_specifier_type (type, ERROR_ME_NOT) != 0;
|
|
0
|
438 }
|
|
|
439
|
|
20
|
440 DEFUN ("valid-specifier-type-p", Fvalid_specifier_type_p, 1, 1, 0, /*
|
|
0
|
441 Given a SPECIFIER-TYPE, return non-nil if it is valid.
|
|
|
442 Valid types are 'generic, 'integer, boolean, 'color, 'font, 'image,
|
|
|
443 'face-boolean, and 'toolbar.
|
|
20
|
444 */
|
|
|
445 (specifier_type))
|
|
0
|
446 {
|
|
272
|
447 return valid_specifier_type_p (specifier_type) ? Qt : Qnil;
|
|
0
|
448 }
|
|
|
449
|
|
20
|
450 DEFUN ("specifier-type-list", Fspecifier_type_list, 0, 0, 0, /*
|
|
0
|
451 Return a list of valid specifier types.
|
|
20
|
452 */
|
|
|
453 ())
|
|
0
|
454 {
|
|
|
455 return Fcopy_sequence (Vspecifier_type_list);
|
|
|
456 }
|
|
|
457
|
|
|
458 void
|
|
|
459 add_entry_to_specifier_type_list (Lisp_Object symbol,
|
|
|
460 struct specifier_methods *meths)
|
|
|
461 {
|
|
|
462 struct specifier_type_entry entry;
|
|
|
463
|
|
|
464 entry.symbol = symbol;
|
|
|
465 entry.meths = meths;
|
|
|
466 Dynarr_add (the_specifier_type_entry_dynarr, entry);
|
|
|
467 Vspecifier_type_list = Fcons (symbol, Vspecifier_type_list);
|
|
|
468 }
|
|
|
469
|
|
|
470 static Lisp_Object
|
|
276
|
471 make_specifier_internal (struct specifier_methods *spec_meths,
|
|
|
472 size_t data_size, int call_create_meth)
|
|
0
|
473 {
|
|
272
|
474 Lisp_Object specifier;
|
|
398
|
475 Lisp_Specifier *sp = (Lisp_Specifier *)
|
|
|
476 alloc_lcrecord (offsetof (Lisp_Specifier, data) + data_size,
|
|
|
477 &lrecord_specifier);
|
|
0
|
478
|
|
|
479 sp->methods = spec_meths;
|
|
|
480 sp->global_specs = Qnil;
|
|
|
481 sp->device_specs = Qnil;
|
|
|
482 sp->frame_specs = Qnil;
|
|
|
483 sp->window_specs = make_weak_list (WEAK_LIST_KEY_ASSOC);
|
|
|
484 sp->buffer_specs = Qnil;
|
|
|
485 sp->fallback = Qnil;
|
|
276
|
486 sp->magic_parent = Qnil;
|
|
0
|
487 sp->caching = 0;
|
|
|
488 sp->next_specifier = Vall_specifiers;
|
|
|
489
|
|
|
490 XSETSPECIFIER (specifier, sp);
|
|
|
491 Vall_specifiers = specifier;
|
|
|
492
|
|
276
|
493 if (call_create_meth)
|
|
|
494 {
|
|
|
495 struct gcpro gcpro1;
|
|
|
496 GCPRO1 (specifier);
|
|
|
497 MAYBE_SPECMETH (XSPECIFIER (specifier), create, (specifier));
|
|
|
498 UNGCPRO;
|
|
|
499 }
|
|
|
500 return specifier;
|
|
|
501 }
|
|
|
502
|
|
|
503 static Lisp_Object
|
|
|
504 make_specifier (struct specifier_methods *meths)
|
|
|
505 {
|
|
|
506 return make_specifier_internal (meths, meths->extra_data_size, 1);
|
|
|
507 }
|
|
|
508
|
|
|
509 Lisp_Object
|
|
|
510 make_magic_specifier (Lisp_Object type)
|
|
|
511 {
|
|
|
512 /* This function can GC */
|
|
|
513 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
514 Lisp_Object bodily, ghost;
|
|
|
515 struct gcpro gcpro1;
|
|
|
516
|
|
|
517 bodily = make_specifier (meths);
|
|
|
518 GCPRO1 (bodily);
|
|
|
519 ghost = make_specifier_internal (meths, 0, 0);
|
|
0
|
520 UNGCPRO;
|
|
276
|
521
|
|
|
522 /* Connect guys together */
|
|
|
523 XSPECIFIER(bodily)->magic_parent = Qt;
|
|
|
524 XSPECIFIER(bodily)->fallback = ghost;
|
|
|
525 XSPECIFIER(ghost)->magic_parent = bodily;
|
|
|
526
|
|
|
527 return bodily;
|
|
0
|
528 }
|
|
|
529
|
|
20
|
530 DEFUN ("make-specifier", Fmake_specifier, 1, 1, 0, /*
|
|
272
|
531 Return a new specifier object of type TYPE.
|
|
0
|
532
|
|
|
533 A specifier is an object that can be used to keep track of a property
|
|
|
534 whose value can be per-buffer, per-window, per-frame, or per-device,
|
|
|
535 and can further be restricted to a particular console-type or device-class.
|
|
|
536 Specifiers are used, for example, for the various built-in properties of a
|
|
|
537 face; this allows a face to have different values in different frames,
|
|
|
538 buffers, etc. For more information, see `specifier-instance',
|
|
|
539 `specifier-specs', and `add-spec-to-specifier'; or, for a detailed
|
|
|
540 description of specifiers, including how they are instantiated over a
|
|
|
541 particular domain (i.e. how their value in that domain is determined),
|
|
|
542 see the chapter on specifiers in the XEmacs Lisp Reference Manual.
|
|
|
543
|
|
|
544 TYPE specifies the particular type of specifier, and should be one of
|
|
|
545 the symbols 'generic, 'integer, 'boolean, 'color, 'font, 'image,
|
|
|
546 'face-boolean, or 'toolbar.
|
|
|
547
|
|
|
548 For more information on particular types of specifiers, see the functions
|
|
|
549 `generic-specifier-p', `integer-specifier-p', `boolean-specifier-p',
|
|
|
550 `color-specifier-p', `font-specifier-p', `image-specifier-p',
|
|
|
551 `face-boolean-specifier-p', and `toolbar-specifier-p'.
|
|
20
|
552 */
|
|
|
553 (type))
|
|
0
|
554 {
|
|
|
555 /* This function can GC */
|
|
|
556 struct specifier_methods *meths = decode_specifier_type (type,
|
|
|
557 ERROR_ME);
|
|
|
558
|
|
|
559 return make_specifier (meths);
|
|
|
560 }
|
|
|
561
|
|
20
|
562 DEFUN ("specifierp", Fspecifierp, 1, 1, 0, /*
|
|
272
|
563 Return t if OBJECT is a specifier.
|
|
0
|
564
|
|
|
565 A specifier is an object that can be used to keep track of a property
|
|
|
566 whose value can be per-buffer, per-window, per-frame, or per-device,
|
|
|
567 and can further be restricted to a particular console-type or device-class.
|
|
|
568 See `make-specifier'.
|
|
20
|
569 */
|
|
|
570 (object))
|
|
0
|
571 {
|
|
272
|
572 return SPECIFIERP (object) ? Qt : Qnil;
|
|
0
|
573 }
|
|
|
574
|
|
20
|
575 DEFUN ("specifier-type", Fspecifier_type, 1, 1, 0, /*
|
|
0
|
576 Return the type of SPECIFIER.
|
|
20
|
577 */
|
|
|
578 (specifier))
|
|
0
|
579 {
|
|
|
580 CHECK_SPECIFIER (specifier);
|
|
|
581 return intern (XSPECIFIER (specifier)->methods->name);
|
|
|
582 }
|
|
|
583
|
|
|
584
|
|
|
585 /************************************************************************/
|
|
|
586 /* Locales and domains */
|
|
|
587 /************************************************************************/
|
|
|
588
|
|
20
|
589 DEFUN ("valid-specifier-locale-p", Fvalid_specifier_locale_p, 1, 1, 0, /*
|
|
272
|
590 Return t if LOCALE is a valid specifier locale.
|
|
|
591 Valid locales are devices, frames, windows, buffers, and 'global.
|
|
|
592 \(nil is not valid.)
|
|
20
|
593 */
|
|
|
594 (locale))
|
|
0
|
595 {
|
|
|
596 /* This cannot GC. */
|
|
272
|
597 return ((DEVICEP (locale) && DEVICE_LIVE_P (XDEVICE (locale))) ||
|
|
|
598 (FRAMEP (locale) && FRAME_LIVE_P (XFRAME (locale))) ||
|
|
|
599 (BUFFERP (locale) && BUFFER_LIVE_P (XBUFFER (locale))) ||
|
|
|
600 /* dead windows are allowed because they may become live
|
|
|
601 windows again when a window configuration is restored */
|
|
|
602 WINDOWP (locale) ||
|
|
|
603 EQ (locale, Qglobal))
|
|
|
604 ? Qt : Qnil;
|
|
0
|
605 }
|
|
|
606
|
|
20
|
607 DEFUN ("valid-specifier-domain-p", Fvalid_specifier_domain_p, 1, 1, 0, /*
|
|
272
|
608 Return t if DOMAIN is a valid specifier domain.
|
|
0
|
609 A domain is used to instance a specifier (i.e. determine the specifier's
|
|
272
|
610 value in that domain). Valid domains are windows, frames, and devices.
|
|
|
611 \(nil is not valid.)
|
|
20
|
612 */
|
|
70
|
613 (domain))
|
|
0
|
614 {
|
|
|
615 /* This cannot GC. */
|
|
272
|
616 return ((DEVICEP (domain) && DEVICE_LIVE_P (XDEVICE (domain))) ||
|
|
|
617 (FRAMEP (domain) && FRAME_LIVE_P (XFRAME (domain))) ||
|
|
|
618 (WINDOWP (domain) && WINDOW_LIVE_P (XWINDOW (domain))))
|
|
|
619 ? Qt : Qnil;
|
|
0
|
620 }
|
|
|
621
|
|
20
|
622 DEFUN ("valid-specifier-locale-type-p", Fvalid_specifier_locale_type_p, 1, 1, 0, /*
|
|
0
|
623 Given a specifier LOCALE-TYPE, return non-nil if it is valid.
|
|
|
624 Valid locale types are 'global, 'device, 'frame, 'window, and 'buffer.
|
|
272
|
625 \(Note, however, that in functions that accept either a locale or a locale
|
|
0
|
626 type, 'global is considered an individual locale.)
|
|
20
|
627 */
|
|
70
|
628 (locale_type))
|
|
0
|
629 {
|
|
|
630 /* This cannot GC. */
|
|
272
|
631 return (EQ (locale_type, Qglobal) ||
|
|
|
632 EQ (locale_type, Qdevice) ||
|
|
|
633 EQ (locale_type, Qframe) ||
|
|
|
634 EQ (locale_type, Qwindow) ||
|
|
|
635 EQ (locale_type, Qbuffer)) ? Qt : Qnil;
|
|
0
|
636 }
|
|
|
637
|
|
|
638 static void
|
|
|
639 check_valid_locale_or_locale_type (Lisp_Object locale)
|
|
|
640 {
|
|
|
641 /* This cannot GC. */
|
|
|
642 if (EQ (locale, Qall) ||
|
|
|
643 !NILP (Fvalid_specifier_locale_p (locale)) ||
|
|
|
644 !NILP (Fvalid_specifier_locale_type_p (locale)))
|
|
|
645 return;
|
|
|
646 signal_simple_error ("Invalid specifier locale or locale type", locale);
|
|
|
647 }
|
|
|
648
|
|
280
|
649 DEFUN ("specifier-locale-type-from-locale", Fspecifier_locale_type_from_locale,
|
|
|
650 1, 1, 0, /*
|
|
0
|
651 Given a specifier LOCALE, return its type.
|
|
20
|
652 */
|
|
|
653 (locale))
|
|
0
|
654 {
|
|
|
655 /* This cannot GC. */
|
|
|
656 if (NILP (Fvalid_specifier_locale_p (locale)))
|
|
|
657 signal_simple_error ("Invalid specifier locale", locale);
|
|
272
|
658 if (DEVICEP (locale)) return Qdevice;
|
|
|
659 if (FRAMEP (locale)) return Qframe;
|
|
|
660 if (WINDOWP (locale)) return Qwindow;
|
|
|
661 if (BUFFERP (locale)) return Qbuffer;
|
|
0
|
662 assert (EQ (locale, Qglobal));
|
|
|
663 return Qglobal;
|
|
|
664 }
|
|
|
665
|
|
272
|
666 static Lisp_Object
|
|
0
|
667 decode_locale (Lisp_Object locale)
|
|
|
668 {
|
|
|
669 /* This cannot GC. */
|
|
|
670 if (NILP (locale))
|
|
|
671 return Qglobal;
|
|
|
672 else if (!NILP (Fvalid_specifier_locale_p (locale)))
|
|
|
673 return locale;
|
|
|
674 else
|
|
|
675 signal_simple_error ("Invalid specifier locale", locale);
|
|
|
676
|
|
|
677 return Qnil;
|
|
|
678 }
|
|
|
679
|
|
|
680 static enum spec_locale_type
|
|
|
681 decode_locale_type (Lisp_Object locale_type)
|
|
|
682 {
|
|
|
683 /* This cannot GC. */
|
|
2
|
684 if (EQ (locale_type, Qglobal)) return LOCALE_GLOBAL;
|
|
|
685 if (EQ (locale_type, Qdevice)) return LOCALE_DEVICE;
|
|
|
686 if (EQ (locale_type, Qframe)) return LOCALE_FRAME;
|
|
|
687 if (EQ (locale_type, Qwindow)) return LOCALE_WINDOW;
|
|
|
688 if (EQ (locale_type, Qbuffer)) return LOCALE_BUFFER;
|
|
173
|
689
|
|
0
|
690 signal_simple_error ("Invalid specifier locale type", locale_type);
|
|
2
|
691 return LOCALE_GLOBAL; /* not reached */
|
|
0
|
692 }
|
|
|
693
|
|
|
694 Lisp_Object
|
|
|
695 decode_locale_list (Lisp_Object locale)
|
|
|
696 {
|
|
|
697 /* This cannot GC. */
|
|
|
698 /* The return value of this function must be GCPRO'd. */
|
|
|
699 if (NILP (locale))
|
|
380
|
700 {
|
|
|
701 return list1 (Qall);
|
|
|
702 }
|
|
|
703 else if (CONSP (locale))
|
|
|
704 {
|
|
|
705 Lisp_Object elt;
|
|
|
706 EXTERNAL_LIST_LOOP_2 (elt, locale)
|
|
|
707 check_valid_locale_or_locale_type (elt);
|
|
|
708 return locale;
|
|
|
709 }
|
|
0
|
710 else
|
|
|
711 {
|
|
380
|
712 check_valid_locale_or_locale_type (locale);
|
|
|
713 return list1 (locale);
|
|
0
|
714 }
|
|
|
715 }
|
|
|
716
|
|
|
717 static enum spec_locale_type
|
|
|
718 locale_type_from_locale (Lisp_Object locale)
|
|
|
719 {
|
|
|
720 return decode_locale_type (Fspecifier_locale_type_from_locale (locale));
|
|
|
721 }
|
|
|
722
|
|
|
723 static void
|
|
|
724 check_valid_domain (Lisp_Object domain)
|
|
|
725 {
|
|
|
726 if (NILP (Fvalid_specifier_domain_p (domain)))
|
|
|
727 signal_simple_error ("Invalid specifier domain", domain);
|
|
|
728 }
|
|
|
729
|
|
272
|
730 static Lisp_Object
|
|
0
|
731 decode_domain (Lisp_Object domain)
|
|
|
732 {
|
|
|
733 if (NILP (domain))
|
|
|
734 return Fselected_window (Qnil);
|
|
|
735 check_valid_domain (domain);
|
|
|
736 return domain;
|
|
|
737 }
|
|
|
738
|
|
|
739
|
|
|
740 /************************************************************************/
|
|
|
741 /* Tags */
|
|
|
742 /************************************************************************/
|
|
|
743
|
|
20
|
744 DEFUN ("valid-specifier-tag-p", Fvalid_specifier_tag_p, 1, 1, 0, /*
|
|
0
|
745 Return non-nil if TAG is a valid specifier tag.
|
|
|
746 See also `valid-specifier-tag-set-p'.
|
|
20
|
747 */
|
|
|
748 (tag))
|
|
0
|
749 {
|
|
272
|
750 return (valid_console_type_p (tag) ||
|
|
|
751 valid_device_class_p (tag) ||
|
|
|
752 !NILP (assq_no_quit (tag, Vuser_defined_tags))) ? Qt : Qnil;
|
|
0
|
753 }
|
|
|
754
|
|
20
|
755 DEFUN ("valid-specifier-tag-set-p", Fvalid_specifier_tag_set_p, 1, 1, 0, /*
|
|
0
|
756 Return non-nil if TAG-SET is a valid specifier tag set.
|
|
|
757
|
|
|
758 A specifier tag set is an entity that is attached to an instantiator
|
|
|
759 and can be used to restrict the scope of that instantiator to a
|
|
|
760 particular device class or device type and/or to mark instantiators
|
|
|
761 added by a particular package so that they can be later removed.
|
|
|
762
|
|
|
763 A specifier tag set consists of a list of zero of more specifier tags,
|
|
|
764 each of which is a symbol that is recognized by XEmacs as a tag.
|
|
272
|
765 \(The valid device types and device classes are always tags, as are
|
|
185
|
766 any tags defined by `define-specifier-tag'.) It is called a "tag set"
|
|
272
|
767 \(as opposed to a list) because the order of the tags or the number of
|
|
0
|
768 times a particular tag occurs does not matter.
|
|
|
769
|
|
|
770 Each tag has a predicate associated with it, which specifies whether
|
|
|
771 that tag applies to a particular device. The tags which are device types
|
|
|
772 and classes match devices of that type or class. User-defined tags can
|
|
|
773 have any predicate, or none (meaning that all devices match). When
|
|
|
774 attempting to instance a specifier, a particular instantiator is only
|
|
|
775 considered if the device of the domain being instanced over matches
|
|
|
776 all tags in the tag set attached to that instantiator.
|
|
|
777
|
|
|
778 Most of the time, a tag set is not specified, and the instantiator
|
|
|
779 gets a null tag set, which matches all devices.
|
|
20
|
780 */
|
|
70
|
781 (tag_set))
|
|
0
|
782 {
|
|
|
783 Lisp_Object rest;
|
|
|
784
|
|
|
785 for (rest = tag_set; !NILP (rest); rest = XCDR (rest))
|
|
|
786 {
|
|
|
787 if (!CONSP (rest))
|
|
|
788 return Qnil;
|
|
|
789 if (NILP (Fvalid_specifier_tag_p (XCAR (rest))))
|
|
|
790 return Qnil;
|
|
|
791 QUIT;
|
|
|
792 }
|
|
|
793 return Qt;
|
|
|
794 }
|
|
|
795
|
|
|
796 Lisp_Object
|
|
|
797 decode_specifier_tag_set (Lisp_Object tag_set)
|
|
|
798 {
|
|
|
799 /* The return value of this function must be GCPRO'd. */
|
|
|
800 if (!NILP (Fvalid_specifier_tag_p (tag_set)))
|
|
|
801 return list1 (tag_set);
|
|
|
802 if (NILP (Fvalid_specifier_tag_set_p (tag_set)))
|
|
|
803 signal_simple_error ("Invalid specifier tag-set", tag_set);
|
|
|
804 return tag_set;
|
|
|
805 }
|
|
|
806
|
|
|
807 static Lisp_Object
|
|
|
808 canonicalize_tag_set (Lisp_Object tag_set)
|
|
|
809 {
|
|
|
810 int len = XINT (Flength (tag_set));
|
|
|
811 Lisp_Object *tags, rest;
|
|
|
812 int i, j;
|
|
|
813
|
|
|
814 /* We assume in this function that the tag_set has already been
|
|
|
815 validated, so there are no surprises. */
|
|
|
816
|
|
|
817 if (len == 0 || len == 1)
|
|
|
818 /* most common case */
|
|
|
819 return tag_set;
|
|
|
820
|
|
185
|
821 tags = alloca_array (Lisp_Object, len);
|
|
0
|
822
|
|
|
823 i = 0;
|
|
|
824 LIST_LOOP (rest, tag_set)
|
|
|
825 tags[i++] = XCAR (rest);
|
|
173
|
826
|
|
0
|
827 /* Sort the list of tags. We use a bubble sort here (copied from
|
|
|
828 extent_fragment_update()) -- reduces the function call overhead,
|
|
|
829 and is the fastest sort for small numbers of items. */
|
|
|
830
|
|
|
831 for (i = 1; i < len; i++)
|
|
|
832 {
|
|
|
833 j = i - 1;
|
|
|
834 while (j >= 0 &&
|
|
|
835 strcmp ((char *) string_data (XSYMBOL (tags[j])->name),
|
|
|
836 (char *) string_data (XSYMBOL (tags[j+1])->name)) > 0)
|
|
|
837 {
|
|
|
838 Lisp_Object tmp = tags[j];
|
|
|
839 tags[j] = tags[j+1];
|
|
|
840 tags[j+1] = tmp;
|
|
|
841 j--;
|
|
|
842 }
|
|
|
843 }
|
|
|
844
|
|
|
845 /* Now eliminate duplicates. */
|
|
|
846
|
|
|
847 for (i = 1, j = 1; i < len; i++)
|
|
|
848 {
|
|
|
849 /* j holds the destination, i the source. */
|
|
|
850 if (!EQ (tags[i], tags[i-1]))
|
|
|
851 tags[j++] = tags[i];
|
|
|
852 }
|
|
|
853
|
|
|
854 return Flist (j, tags);
|
|
|
855 }
|
|
|
856
|
|
20
|
857 DEFUN ("canonicalize-tag-set", Fcanonicalize_tag_set, 1, 1, 0, /*
|
|
0
|
858 Canonicalize the given tag set.
|
|
|
859 Two canonicalized tag sets can be compared with `equal' to see if they
|
|
|
860 represent the same tag set. (Specifically, canonicalizing involves
|
|
|
861 sorting by symbol name and removing duplicates.)
|
|
20
|
862 */
|
|
|
863 (tag_set))
|
|
0
|
864 {
|
|
|
865 if (NILP (Fvalid_specifier_tag_set_p (tag_set)))
|
|
|
866 signal_simple_error ("Invalid tag set", tag_set);
|
|
|
867 return canonicalize_tag_set (tag_set);
|
|
|
868 }
|
|
|
869
|
|
|
870 static int
|
|
|
871 device_matches_specifier_tag_set_p (Lisp_Object device, Lisp_Object tag_set)
|
|
|
872 {
|
|
|
873 Lisp_Object devtype, devclass, rest;
|
|
|
874 struct device *d = XDEVICE (device);
|
|
|
875
|
|
|
876 devtype = DEVICE_TYPE (d);
|
|
|
877 devclass = DEVICE_CLASS (d);
|
|
|
878
|
|
|
879 LIST_LOOP (rest, tag_set)
|
|
|
880 {
|
|
|
881 Lisp_Object tag = XCAR (rest);
|
|
|
882 Lisp_Object assoc;
|
|
|
883
|
|
|
884 if (EQ (tag, devtype) || EQ (tag, devclass))
|
|
|
885 continue;
|
|
|
886 assoc = assq_no_quit (tag, DEVICE_USER_DEFINED_TAGS (d));
|
|
|
887 /* other built-in tags (device types/classes) are not in
|
|
|
888 the user-defined-tags list. */
|
|
|
889 if (NILP (assoc) || NILP (XCDR (assoc)))
|
|
|
890 return 0;
|
|
|
891 }
|
|
|
892
|
|
|
893 return 1;
|
|
|
894 }
|
|
|
895
|
|
20
|
896 DEFUN ("device-matches-specifier-tag-set-p", Fdevice_matches_specifier_tag_set_p, 2, 2, 0, /*
|
|
0
|
897 Return non-nil if DEVICE matches specifier tag set TAG-SET.
|
|
|
898 This means that DEVICE matches each tag in the tag set. (Every
|
|
|
899 tag recognized by XEmacs has a predicate associated with it that
|
|
|
900 specifies which devices match it.)
|
|
20
|
901 */
|
|
|
902 (device, tag_set))
|
|
0
|
903 {
|
|
|
904 CHECK_LIVE_DEVICE (device);
|
|
|
905
|
|
|
906 if (NILP (Fvalid_specifier_tag_set_p (tag_set)))
|
|
|
907 signal_simple_error ("Invalid tag set", tag_set);
|
|
|
908
|
|
|
909 return device_matches_specifier_tag_set_p (device, tag_set) ? Qt : Qnil;
|
|
|
910 }
|
|
|
911
|
|
20
|
912 DEFUN ("define-specifier-tag", Fdefine_specifier_tag, 1, 2, 0, /*
|
|
0
|
913 Define a new specifier tag.
|
|
|
914 If PREDICATE is specified, it should be a function of one argument
|
|
272
|
915 \(a device) that specifies whether the tag matches that particular
|
|
0
|
916 device. If PREDICATE is omitted, the tag matches all devices.
|
|
|
917
|
|
|
918 You can redefine an existing user-defined specifier tag. However,
|
|
|
919 you cannot redefine the built-in specifier tags (the device types
|
|
|
920 and classes) or the symbols nil, t, 'all, or 'global.
|
|
20
|
921 */
|
|
|
922 (tag, predicate))
|
|
0
|
923 {
|
|
|
924 Lisp_Object assoc, devcons, concons;
|
|
|
925 int recompute = 0;
|
|
|
926
|
|
|
927 CHECK_SYMBOL (tag);
|
|
|
928 if (valid_device_class_p (tag) ||
|
|
|
929 valid_console_type_p (tag))
|
|
|
930 signal_simple_error ("Cannot redefine built-in specifier tags", tag);
|
|
|
931 /* Try to prevent common instantiators and locales from being
|
|
|
932 redefined, to reduce ambiguity */
|
|
|
933 if (NILP (tag) || EQ (tag, Qt) || EQ (tag, Qall) || EQ (tag, Qglobal))
|
|
|
934 signal_simple_error ("Cannot define nil, t, 'all, or 'global",
|
|
|
935 tag);
|
|
|
936 assoc = assq_no_quit (tag, Vuser_defined_tags);
|
|
|
937 if (NILP (assoc))
|
|
|
938 {
|
|
|
939 recompute = 1;
|
|
|
940 Vuser_defined_tags = Fcons (Fcons (tag, predicate), Vuser_defined_tags);
|
|
|
941 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
942 {
|
|
|
943 struct device *d = XDEVICE (XCAR (devcons));
|
|
|
944 /* Initially set the value to t in case of error
|
|
|
945 in predicate */
|
|
|
946 DEVICE_USER_DEFINED_TAGS (d) =
|
|
|
947 Fcons (Fcons (tag, Qt), DEVICE_USER_DEFINED_TAGS (d));
|
|
|
948 }
|
|
|
949 }
|
|
|
950 else if (!NILP (predicate) && !NILP (XCDR (assoc)))
|
|
|
951 {
|
|
|
952 recompute = 1;
|
|
|
953 XCDR (assoc) = predicate;
|
|
|
954 }
|
|
|
955
|
|
|
956 /* recompute the tag values for all devices. However, in the special
|
|
|
957 case where both the old and new predicates are nil, we know that
|
|
|
958 we don't have to do this. (It's probably common for people to
|
|
|
959 call (define-specifier-tag) more than once on the same tag,
|
|
|
960 and the most common case is where PREDICATE is not specified.) */
|
|
|
961
|
|
|
962 if (recompute)
|
|
|
963 {
|
|
|
964 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
965 {
|
|
|
966 Lisp_Object device = XCAR (devcons);
|
|
|
967 assoc = assq_no_quit (tag,
|
|
|
968 DEVICE_USER_DEFINED_TAGS (XDEVICE (device)));
|
|
|
969 assert (CONSP (assoc));
|
|
|
970 if (NILP (predicate))
|
|
|
971 XCDR (assoc) = Qt;
|
|
|
972 else
|
|
|
973 XCDR (assoc) = !NILP (call1 (predicate, device)) ? Qt : Qnil;
|
|
|
974 }
|
|
|
975 }
|
|
|
976
|
|
|
977 return Qnil;
|
|
|
978 }
|
|
|
979
|
|
|
980 /* Called at device-creation time to initialize the user-defined
|
|
|
981 tag values for the newly-created device. */
|
|
|
982
|
|
|
983 void
|
|
|
984 setup_device_initial_specifier_tags (struct device *d)
|
|
|
985 {
|
|
|
986 Lisp_Object rest, rest2;
|
|
272
|
987 Lisp_Object device;
|
|
0
|
988
|
|
|
989 XSETDEVICE (device, d);
|
|
173
|
990
|
|
0
|
991 DEVICE_USER_DEFINED_TAGS (d) = Fcopy_alist (Vuser_defined_tags);
|
|
|
992
|
|
|
993 /* Now set up the initial values */
|
|
|
994 LIST_LOOP (rest, DEVICE_USER_DEFINED_TAGS (d))
|
|
|
995 XCDR (XCAR (rest)) = Qt;
|
|
|
996
|
|
|
997 for (rest = Vuser_defined_tags, rest2 = DEVICE_USER_DEFINED_TAGS (d);
|
|
|
998 !NILP (rest); rest = XCDR (rest), rest2 = XCDR (rest2))
|
|
|
999 {
|
|
|
1000 Lisp_Object predicate = XCDR (XCAR (rest));
|
|
|
1001 if (NILP (predicate))
|
|
|
1002 XCDR (XCAR (rest2)) = Qt;
|
|
|
1003 else
|
|
|
1004 XCDR (XCAR (rest2)) = !NILP (call1 (predicate, device)) ? Qt : Qnil;
|
|
|
1005 }
|
|
|
1006 }
|
|
|
1007
|
|
280
|
1008 DEFUN ("device-matching-specifier-tag-list", Fdevice_matching_specifier_tag_list,
|
|
|
1009 0, 1, 0, /*
|
|
0
|
1010 Return a list of all specifier tags matching DEVICE.
|
|
|
1011 DEVICE defaults to the selected device if omitted.
|
|
20
|
1012 */
|
|
|
1013 (device))
|
|
0
|
1014 {
|
|
|
1015 struct device *d = decode_device (device);
|
|
|
1016 Lisp_Object rest, list = Qnil;
|
|
|
1017 struct gcpro gcpro1;
|
|
173
|
1018
|
|
0
|
1019 GCPRO1 (list);
|
|
|
1020
|
|
|
1021 LIST_LOOP (rest, DEVICE_USER_DEFINED_TAGS (d))
|
|
|
1022 {
|
|
|
1023 if (!NILP (XCDR (XCAR (rest))))
|
|
|
1024 list = Fcons (XCAR (XCAR (rest)), list);
|
|
|
1025 }
|
|
|
1026
|
|
|
1027 list = Fnreverse (list);
|
|
|
1028 list = Fcons (DEVICE_CLASS (d), list);
|
|
272
|
1029 list = Fcons (DEVICE_TYPE (d), list);
|
|
0
|
1030
|
|
|
1031 RETURN_UNGCPRO (list);
|
|
|
1032 }
|
|
|
1033
|
|
20
|
1034 DEFUN ("specifier-tag-list", Fspecifier_tag_list, 0, 0, 0, /*
|
|
0
|
1035 Return a list of all currently-defined specifier tags.
|
|
|
1036 This includes the built-in ones (the device types and classes).
|
|
20
|
1037 */
|
|
|
1038 ())
|
|
0
|
1039 {
|
|
|
1040 Lisp_Object list = Qnil, rest;
|
|
|
1041 struct gcpro gcpro1;
|
|
|
1042
|
|
|
1043 GCPRO1 (list);
|
|
|
1044
|
|
|
1045 LIST_LOOP (rest, Vuser_defined_tags)
|
|
|
1046 list = Fcons (XCAR (XCAR (rest)), list);
|
|
|
1047
|
|
|
1048 list = Fnreverse (list);
|
|
|
1049 list = nconc2 (Fcopy_sequence (Vdevice_class_list), list);
|
|
|
1050 list = nconc2 (Fcopy_sequence (Vconsole_type_list), list);
|
|
|
1051
|
|
|
1052 RETURN_UNGCPRO (list);
|
|
|
1053 }
|
|
|
1054
|
|
20
|
1055 DEFUN ("specifier-tag-predicate", Fspecifier_tag_predicate, 1, 1, 0, /*
|
|
0
|
1056 Return the predicate for the given specifier tag.
|
|
20
|
1057 */
|
|
|
1058 (tag))
|
|
0
|
1059 {
|
|
|
1060 /* The return value of this function must be GCPRO'd. */
|
|
|
1061 CHECK_SYMBOL (tag);
|
|
|
1062
|
|
|
1063 if (NILP (Fvalid_specifier_tag_p (tag)))
|
|
|
1064 signal_simple_error ("Invalid specifier tag", tag);
|
|
|
1065
|
|
|
1066 /* Make up some predicates for the built-in types */
|
|
|
1067
|
|
|
1068 if (valid_console_type_p (tag))
|
|
|
1069 return list3 (Qlambda, list1 (Qdevice),
|
|
|
1070 list3 (Qeq, list2 (Qquote, tag),
|
|
|
1071 list2 (Qconsole_type, Qdevice)));
|
|
173
|
1072
|
|
0
|
1073 if (valid_device_class_p (tag))
|
|
|
1074 return list3 (Qlambda, list1 (Qdevice),
|
|
|
1075 list3 (Qeq, list2 (Qquote, tag),
|
|
|
1076 list2 (Qdevice_class, Qdevice)));
|
|
|
1077
|
|
|
1078 return XCDR (assq_no_quit (tag, Vuser_defined_tags));
|
|
|
1079 }
|
|
|
1080
|
|
|
1081 /* Return true if A "matches" B. If EXACT_P is 0, A must be a subset of B.
|
|
|
1082 Otherwise, A must be `equal' to B. The sets must be canonicalized. */
|
|
|
1083 static int
|
|
|
1084 tag_sets_match_p (Lisp_Object a, Lisp_Object b, int exact_p)
|
|
|
1085 {
|
|
|
1086 if (!exact_p)
|
|
|
1087 {
|
|
|
1088 while (!NILP (a) && !NILP (b))
|
|
|
1089 {
|
|
|
1090 if (EQ (XCAR (a), XCAR (b)))
|
|
|
1091 a = XCDR (a);
|
|
|
1092 b = XCDR (b);
|
|
|
1093 }
|
|
173
|
1094
|
|
0
|
1095 return NILP (a);
|
|
|
1096 }
|
|
|
1097 else
|
|
|
1098 {
|
|
|
1099 while (!NILP (a) && !NILP (b))
|
|
|
1100 {
|
|
|
1101 if (!EQ (XCAR (a), XCAR (b)))
|
|
|
1102 return 0;
|
|
|
1103 a = XCDR (a);
|
|
|
1104 b = XCDR (b);
|
|
|
1105 }
|
|
|
1106
|
|
|
1107 return NILP (a) && NILP (b);
|
|
|
1108 }
|
|
|
1109 }
|
|
|
1110
|
|
|
1111
|
|
|
1112 /************************************************************************/
|
|
|
1113 /* Spec-lists and inst-lists */
|
|
|
1114 /************************************************************************/
|
|
|
1115
|
|
|
1116 static Lisp_Object
|
|
|
1117 call_validate_method (Lisp_Object boxed_method, Lisp_Object instantiator)
|
|
|
1118 {
|
|
|
1119 ((void (*)(Lisp_Object)) get_opaque_ptr (boxed_method)) (instantiator);
|
|
|
1120 return Qt;
|
|
|
1121 }
|
|
|
1122
|
|
|
1123 static Lisp_Object
|
|
|
1124 check_valid_instantiator (Lisp_Object instantiator,
|
|
|
1125 struct specifier_methods *meths,
|
|
|
1126 Error_behavior errb)
|
|
|
1127 {
|
|
|
1128 if (meths->validate_method)
|
|
|
1129 {
|
|
|
1130 Lisp_Object retval;
|
|
|
1131
|
|
|
1132 if (ERRB_EQ (errb, ERROR_ME))
|
|
|
1133 {
|
|
|
1134 (meths->validate_method) (instantiator);
|
|
|
1135 retval = Qt;
|
|
|
1136 }
|
|
|
1137 else
|
|
|
1138 {
|
|
|
1139 Lisp_Object opaque = make_opaque_ptr ((void *)
|
|
|
1140 meths->validate_method);
|
|
|
1141 struct gcpro gcpro1;
|
|
|
1142
|
|
|
1143 GCPRO1 (opaque);
|
|
74
|
1144 retval = call_with_suspended_errors
|
|
|
1145 ((lisp_fn_t) call_validate_method,
|
|
|
1146 Qnil, Qspecifier, errb, 2, opaque, instantiator);
|
|
173
|
1147
|
|
0
|
1148 free_opaque_ptr (opaque);
|
|
|
1149 UNGCPRO;
|
|
|
1150 }
|
|
|
1151
|
|
|
1152 return retval;
|
|
|
1153 }
|
|
|
1154 return Qt;
|
|
|
1155 }
|
|
|
1156
|
|
20
|
1157 DEFUN ("check-valid-instantiator", Fcheck_valid_instantiator, 2, 2, 0, /*
|
|
0
|
1158 Signal an error if INSTANTIATOR is invalid for SPECIFIER-TYPE.
|
|
20
|
1159 */
|
|
|
1160 (instantiator, specifier_type))
|
|
0
|
1161 {
|
|
|
1162 struct specifier_methods *meths = decode_specifier_type (specifier_type,
|
|
|
1163 ERROR_ME);
|
|
|
1164
|
|
|
1165 return check_valid_instantiator (instantiator, meths, ERROR_ME);
|
|
|
1166 }
|
|
|
1167
|
|
20
|
1168 DEFUN ("valid-instantiator-p", Fvalid_instantiator_p, 2, 2, 0, /*
|
|
0
|
1169 Return non-nil if INSTANTIATOR is valid for SPECIFIER-TYPE.
|
|
20
|
1170 */
|
|
|
1171 (instantiator, specifier_type))
|
|
0
|
1172 {
|
|
|
1173 struct specifier_methods *meths = decode_specifier_type (specifier_type,
|
|
|
1174 ERROR_ME);
|
|
|
1175
|
|
|
1176 return check_valid_instantiator (instantiator, meths, ERROR_ME_NOT);
|
|
|
1177 }
|
|
|
1178
|
|
|
1179 static Lisp_Object
|
|
|
1180 check_valid_inst_list (Lisp_Object inst_list, struct specifier_methods *meths,
|
|
|
1181 Error_behavior errb)
|
|
|
1182 {
|
|
|
1183 Lisp_Object rest;
|
|
|
1184
|
|
|
1185 LIST_LOOP (rest, inst_list)
|
|
|
1186 {
|
|
272
|
1187 Lisp_Object inst_pair, tag_set;
|
|
|
1188
|
|
|
1189 if (!CONSP (rest))
|
|
0
|
1190 {
|
|
|
1191 maybe_signal_simple_error ("Invalid instantiator list", inst_list,
|
|
|
1192 Qspecifier, errb);
|
|
|
1193 return Qnil;
|
|
|
1194 }
|
|
272
|
1195 if (!CONSP (inst_pair = XCAR (rest)))
|
|
0
|
1196 {
|
|
272
|
1197 maybe_signal_simple_error ("Invalid instantiator pair", inst_pair,
|
|
|
1198 Qspecifier, errb);
|
|
0
|
1199 return Qnil;
|
|
|
1200 }
|
|
272
|
1201 if (NILP (Fvalid_specifier_tag_set_p (tag_set = XCAR (inst_pair))))
|
|
|
1202 {
|
|
|
1203 maybe_signal_simple_error ("Invalid specifier tag", tag_set,
|
|
|
1204 Qspecifier, errb);
|
|
|
1205 return Qnil;
|
|
|
1206 }
|
|
|
1207
|
|
|
1208 if (NILP (check_valid_instantiator (XCDR (inst_pair), meths, errb)))
|
|
0
|
1209 return Qnil;
|
|
|
1210 }
|
|
|
1211
|
|
|
1212 return Qt;
|
|
|
1213 }
|
|
|
1214
|
|
20
|
1215 DEFUN ("check-valid-inst-list", Fcheck_valid_inst_list, 2, 2, 0, /*
|
|
0
|
1216 Signal an error if INST-LIST is invalid for specifier type TYPE.
|
|
20
|
1217 */
|
|
|
1218 (inst_list, type))
|
|
0
|
1219 {
|
|
|
1220 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
1221
|
|
|
1222 return check_valid_inst_list (inst_list, meths, ERROR_ME);
|
|
|
1223 }
|
|
|
1224
|
|
20
|
1225 DEFUN ("valid-inst-list-p", Fvalid_inst_list_p, 2, 2, 0, /*
|
|
0
|
1226 Return non-nil if INST-LIST is valid for specifier type TYPE.
|
|
20
|
1227 */
|
|
|
1228 (inst_list, type))
|
|
0
|
1229 {
|
|
|
1230 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
1231
|
|
|
1232 return check_valid_inst_list (inst_list, meths, ERROR_ME_NOT);
|
|
|
1233 }
|
|
|
1234
|
|
|
1235 static Lisp_Object
|
|
|
1236 check_valid_spec_list (Lisp_Object spec_list, struct specifier_methods *meths,
|
|
|
1237 Error_behavior errb)
|
|
|
1238 {
|
|
|
1239 Lisp_Object rest;
|
|
|
1240
|
|
|
1241 LIST_LOOP (rest, spec_list)
|
|
|
1242 {
|
|
272
|
1243 Lisp_Object spec, locale;
|
|
|
1244 if (!CONSP (rest) || !CONSP (spec = XCAR (rest)))
|
|
0
|
1245 {
|
|
|
1246 maybe_signal_simple_error ("Invalid specification list", spec_list,
|
|
|
1247 Qspecifier, errb);
|
|
|
1248 return Qnil;
|
|
|
1249 }
|
|
272
|
1250 if (NILP (Fvalid_specifier_locale_p (locale = XCAR (spec))))
|
|
0
|
1251 {
|
|
272
|
1252 maybe_signal_simple_error ("Invalid specifier locale", locale,
|
|
0
|
1253 Qspecifier, errb);
|
|
|
1254 return Qnil;
|
|
|
1255 }
|
|
|
1256
|
|
272
|
1257 if (NILP (check_valid_inst_list (XCDR (spec), meths, errb)))
|
|
0
|
1258 return Qnil;
|
|
|
1259 }
|
|
|
1260
|
|
|
1261 return Qt;
|
|
|
1262 }
|
|
|
1263
|
|
20
|
1264 DEFUN ("check-valid-spec-list", Fcheck_valid_spec_list, 2, 2, 0, /*
|
|
0
|
1265 Signal an error if SPEC-LIST is invalid for specifier type TYPE.
|
|
20
|
1266 */
|
|
|
1267 (spec_list, type))
|
|
0
|
1268 {
|
|
|
1269 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
1270
|
|
|
1271 return check_valid_spec_list (spec_list, meths, ERROR_ME);
|
|
|
1272 }
|
|
|
1273
|
|
20
|
1274 DEFUN ("valid-spec-list-p", Fvalid_spec_list_p, 2, 2, 0, /*
|
|
0
|
1275 Return non-nil if SPEC-LIST is valid for specifier type TYPE.
|
|
20
|
1276 */
|
|
|
1277 (spec_list, type))
|
|
0
|
1278 {
|
|
|
1279 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
1280
|
|
|
1281 return check_valid_spec_list (spec_list, meths, ERROR_ME_NOT);
|
|
|
1282 }
|
|
|
1283
|
|
|
1284 enum spec_add_meth
|
|
|
1285 decode_how_to_add_specification (Lisp_Object how_to_add)
|
|
|
1286 {
|
|
|
1287 if (NILP (how_to_add) || EQ (Qremove_tag_set_prepend, how_to_add))
|
|
185
|
1288 return SPEC_REMOVE_TAG_SET_PREPEND;
|
|
|
1289 if (EQ (Qremove_tag_set_append, how_to_add))
|
|
|
1290 return SPEC_REMOVE_TAG_SET_APPEND;
|
|
|
1291 if (EQ (Qappend, how_to_add))
|
|
|
1292 return SPEC_APPEND;
|
|
|
1293 if (EQ (Qprepend, how_to_add))
|
|
|
1294 return SPEC_PREPEND;
|
|
|
1295 if (EQ (Qremove_locale, how_to_add))
|
|
|
1296 return SPEC_REMOVE_LOCALE;
|
|
|
1297 if (EQ (Qremove_locale_type, how_to_add))
|
|
|
1298 return SPEC_REMOVE_LOCALE_TYPE;
|
|
|
1299 if (EQ (Qremove_all, how_to_add))
|
|
|
1300 return SPEC_REMOVE_ALL;
|
|
|
1301
|
|
|
1302 signal_simple_error ("Invalid `how-to-add' flag", how_to_add);
|
|
|
1303
|
|
|
1304 return SPEC_PREPEND; /* not reached */
|
|
0
|
1305 }
|
|
|
1306
|
|
280
|
1307 /* Given a specifier object SPEC, return bodily specifier if SPEC is a
|
|
276
|
1308 ghost specifier, otherwise return the object itself
|
|
|
1309 */
|
|
|
1310 static Lisp_Object
|
|
|
1311 bodily_specifier (Lisp_Object spec)
|
|
|
1312 {
|
|
|
1313 return (GHOST_SPECIFIER_P (XSPECIFIER (spec))
|
|
|
1314 ? XSPECIFIER(spec)->magic_parent : spec);
|
|
|
1315 }
|
|
|
1316
|
|
280
|
1317 /* Signal error if (specifier SPEC is read-only.
|
|
|
1318 Read only are ghost specifiers unless Vunlock_ghost_specifiers is
|
|
|
1319 non-nil. All other specifiers are read-write.
|
|
276
|
1320 */
|
|
280
|
1321 static void
|
|
|
1322 check_modifiable_specifier (Lisp_Object spec)
|
|
276
|
1323 {
|
|
280
|
1324 if (NILP (Vunlock_ghost_specifiers)
|
|
|
1325 && GHOST_SPECIFIER_P (XSPECIFIER (spec)))
|
|
|
1326 signal_simple_error ("Attempt to modify read-only specifier",
|
|
|
1327 list1 (spec));
|
|
276
|
1328 }
|
|
|
1329
|
|
|
1330 /* Helper function which unwind protects the value of
|
|
280
|
1331 Vunlock_ghost_specifiers, then sets it to non-nil value */
|
|
276
|
1332 static Lisp_Object
|
|
280
|
1333 restore_unlock_value (Lisp_Object val)
|
|
276
|
1334 {
|
|
280
|
1335 Vunlock_ghost_specifiers = val;
|
|
276
|
1336 return val;
|
|
|
1337 }
|
|
|
1338
|
|
|
1339 int
|
|
280
|
1340 unlock_ghost_specifiers_protected (void)
|
|
276
|
1341 {
|
|
|
1342 int depth = specpdl_depth ();
|
|
280
|
1343 record_unwind_protect (restore_unlock_value,
|
|
|
1344 Vunlock_ghost_specifiers);
|
|
|
1345 Vunlock_ghost_specifiers = Qt;
|
|
276
|
1346 return depth;
|
|
|
1347 }
|
|
|
1348
|
|
0
|
1349 /* This gets hit so much that the function call overhead had a
|
|
|
1350 measurable impact (according to Quantify). #### We should figure
|
|
|
1351 out the frequency with which this is called with the various types
|
|
|
1352 and reorder the check accordingly. */
|
|
185
|
1353 #define SPECIFIER_GET_SPEC_LIST(specifier, type) \
|
|
|
1354 (type == LOCALE_GLOBAL ? &(XSPECIFIER (specifier)->global_specs) : \
|
|
|
1355 type == LOCALE_DEVICE ? &(XSPECIFIER (specifier)->device_specs) : \
|
|
|
1356 type == LOCALE_FRAME ? &(XSPECIFIER (specifier)->frame_specs) : \
|
|
|
1357 type == LOCALE_WINDOW ? &(XWEAK_LIST_LIST \
|
|
|
1358 (XSPECIFIER (specifier)->window_specs)) : \
|
|
|
1359 type == LOCALE_BUFFER ? &(XSPECIFIER (specifier)->buffer_specs) : \
|
|
|
1360 0)
|
|
173
|
1361
|
|
0
|
1362 static Lisp_Object *
|
|
|
1363 specifier_get_inst_list (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1364 enum spec_locale_type type)
|
|
|
1365 {
|
|
|
1366 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1367 Lisp_Object specification;
|
|
|
1368
|
|
|
1369 if (type == LOCALE_GLOBAL)
|
|
|
1370 return spec_list;
|
|
|
1371 /* Calling assq_no_quit when it is just going to return nil anyhow
|
|
|
1372 is extremely expensive. So sayeth Quantify. */
|
|
|
1373 if (!CONSP (*spec_list))
|
|
|
1374 return 0;
|
|
|
1375 specification = assq_no_quit (locale, *spec_list);
|
|
|
1376 if (NILP (specification))
|
|
|
1377 return 0;
|
|
|
1378 return &XCDR (specification);
|
|
|
1379 }
|
|
|
1380
|
|
|
1381 /* For the given INST_LIST, return a new INST_LIST containing all elements
|
|
|
1382 where TAG-SET matches the element's tag set. EXACT_P indicates whether
|
|
|
1383 the match must be exact (as opposed to a subset). SHORT_P indicates
|
|
|
1384 that the short form (for `specifier-specs') should be returned if
|
|
|
1385 possible. If COPY_TREE_P, `copy-tree' is used to ensure that no
|
|
|
1386 elements of the new list are shared with the initial list.
|
|
|
1387 */
|
|
|
1388
|
|
|
1389 static Lisp_Object
|
|
|
1390 specifier_process_inst_list (Lisp_Object inst_list,
|
|
|
1391 Lisp_Object tag_set, int exact_p,
|
|
|
1392 int short_p, int copy_tree_p)
|
|
|
1393 {
|
|
|
1394 Lisp_Object retval = Qnil;
|
|
|
1395 Lisp_Object rest;
|
|
|
1396 struct gcpro gcpro1;
|
|
|
1397
|
|
|
1398 GCPRO1 (retval);
|
|
|
1399 LIST_LOOP (rest, inst_list)
|
|
|
1400 {
|
|
|
1401 Lisp_Object tagged_inst = XCAR (rest);
|
|
|
1402 Lisp_Object tagged_inst_tag = XCAR (tagged_inst);
|
|
|
1403 if (tag_sets_match_p (tag_set, tagged_inst_tag, exact_p))
|
|
|
1404 {
|
|
|
1405 if (short_p && NILP (tagged_inst_tag))
|
|
|
1406 retval = Fcons (copy_tree_p ?
|
|
|
1407 Fcopy_tree (XCDR (tagged_inst), Qt) :
|
|
|
1408 XCDR (tagged_inst),
|
|
|
1409 retval);
|
|
|
1410 else
|
|
|
1411 retval = Fcons (copy_tree_p ? Fcopy_tree (tagged_inst, Qt) :
|
|
|
1412 tagged_inst, retval);
|
|
|
1413 }
|
|
|
1414 }
|
|
|
1415 retval = Fnreverse (retval);
|
|
|
1416 UNGCPRO;
|
|
|
1417 /* If there is a single instantiator and the short form is
|
|
|
1418 requested, return just the instantiator (rather than a one-element
|
|
|
1419 list of it) unless it is nil (so that it can be distinguished from
|
|
|
1420 no instantiators at all). */
|
|
|
1421 if (short_p && CONSP (retval) && !NILP (XCAR (retval)) &&
|
|
|
1422 NILP (XCDR (retval)))
|
|
|
1423 return XCAR (retval);
|
|
|
1424 else
|
|
|
1425 return retval;
|
|
|
1426 }
|
|
|
1427
|
|
|
1428 static Lisp_Object
|
|
|
1429 specifier_get_external_inst_list (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1430 enum spec_locale_type type,
|
|
|
1431 Lisp_Object tag_set, int exact_p,
|
|
|
1432 int short_p, int copy_tree_p)
|
|
|
1433 {
|
|
|
1434 Lisp_Object *inst_list = specifier_get_inst_list (specifier, locale,
|
|
|
1435 type);
|
|
|
1436 if (!inst_list || NILP (*inst_list))
|
|
|
1437 {
|
|
|
1438 /* nil for *inst_list should only occur in 'global */
|
|
|
1439 assert (!inst_list || EQ (locale, Qglobal));
|
|
|
1440 return Qnil;
|
|
|
1441 }
|
|
|
1442
|
|
|
1443 return specifier_process_inst_list (*inst_list, tag_set, exact_p,
|
|
|
1444 short_p, copy_tree_p);
|
|
|
1445 }
|
|
|
1446
|
|
|
1447 static Lisp_Object
|
|
|
1448 specifier_get_external_spec_list (Lisp_Object specifier,
|
|
|
1449 enum spec_locale_type type,
|
|
|
1450 Lisp_Object tag_set, int exact_p)
|
|
|
1451 {
|
|
|
1452 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1453 Lisp_Object retval = Qnil;
|
|
|
1454 Lisp_Object rest;
|
|
|
1455 struct gcpro gcpro1;
|
|
|
1456
|
|
|
1457 assert (type != LOCALE_GLOBAL);
|
|
|
1458 /* We're about to let stuff go external; make sure there aren't
|
|
|
1459 any dead objects */
|
|
|
1460 *spec_list = cleanup_assoc_list (*spec_list);
|
|
|
1461
|
|
|
1462 GCPRO1 (retval);
|
|
|
1463 LIST_LOOP (rest, *spec_list)
|
|
|
1464 {
|
|
|
1465 Lisp_Object spec = XCAR (rest);
|
|
|
1466 Lisp_Object inst_list =
|
|
|
1467 specifier_process_inst_list (XCDR (spec), tag_set, exact_p, 0, 1);
|
|
|
1468 if (!NILP (inst_list))
|
|
|
1469 retval = Fcons (Fcons (XCAR (spec), inst_list), retval);
|
|
|
1470 }
|
|
|
1471 RETURN_UNGCPRO (Fnreverse (retval));
|
|
|
1472 }
|
|
|
1473
|
|
|
1474 static Lisp_Object *
|
|
|
1475 specifier_new_spec (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1476 enum spec_locale_type type)
|
|
|
1477 {
|
|
|
1478 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1479 Lisp_Object new_spec = Fcons (locale, Qnil);
|
|
|
1480 assert (type != LOCALE_GLOBAL);
|
|
|
1481 *spec_list = Fcons (new_spec, *spec_list);
|
|
|
1482 return &XCDR (new_spec);
|
|
|
1483 }
|
|
|
1484
|
|
|
1485 /* For the given INST_LIST, return a new list comprised of elements
|
|
|
1486 where TAG_SET does not match the element's tag set. This operation
|
|
|
1487 is destructive. */
|
|
|
1488
|
|
|
1489 static Lisp_Object
|
|
|
1490 specifier_process_remove_inst_list (Lisp_Object inst_list,
|
|
|
1491 Lisp_Object tag_set, int exact_p,
|
|
|
1492 int *was_removed)
|
|
|
1493 {
|
|
|
1494 Lisp_Object prev = Qnil, rest;
|
|
|
1495
|
|
|
1496 *was_removed = 0;
|
|
|
1497
|
|
|
1498 LIST_LOOP (rest, inst_list)
|
|
|
1499 {
|
|
|
1500 if (tag_sets_match_p (tag_set, XCAR (XCAR (rest)), exact_p))
|
|
|
1501 {
|
|
|
1502 /* time to remove. */
|
|
|
1503 *was_removed = 1;
|
|
|
1504 if (NILP (prev))
|
|
|
1505 inst_list = XCDR (rest);
|
|
|
1506 else
|
|
|
1507 XCDR (prev) = XCDR (rest);
|
|
|
1508 }
|
|
|
1509 else
|
|
|
1510 prev = rest;
|
|
|
1511 }
|
|
|
1512
|
|
|
1513 return inst_list;
|
|
|
1514 }
|
|
|
1515
|
|
|
1516 static void
|
|
|
1517 specifier_remove_spec (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1518 enum spec_locale_type type,
|
|
|
1519 Lisp_Object tag_set, int exact_p)
|
|
|
1520 {
|
|
|
1521 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1522 Lisp_Object assoc;
|
|
|
1523 int was_removed;
|
|
|
1524
|
|
|
1525 if (type == LOCALE_GLOBAL)
|
|
|
1526 *spec_list = specifier_process_remove_inst_list (*spec_list, tag_set,
|
|
|
1527 exact_p, &was_removed);
|
|
|
1528 else
|
|
|
1529 {
|
|
|
1530 assoc = assq_no_quit (locale, *spec_list);
|
|
|
1531 if (NILP (assoc))
|
|
|
1532 /* this locale is not found. */
|
|
|
1533 return;
|
|
|
1534 XCDR (assoc) = specifier_process_remove_inst_list (XCDR (assoc),
|
|
|
1535 tag_set, exact_p,
|
|
|
1536 &was_removed);
|
|
|
1537 if (NILP (XCDR (assoc)))
|
|
|
1538 /* no inst-pairs left; remove this locale entirely. */
|
|
|
1539 *spec_list = remassq_no_quit (locale, *spec_list);
|
|
|
1540 }
|
|
173
|
1541
|
|
0
|
1542 if (was_removed)
|
|
276
|
1543 MAYBE_SPECMETH (XSPECIFIER (specifier), after_change,
|
|
|
1544 (bodily_specifier (specifier), locale));
|
|
0
|
1545 }
|
|
|
1546
|
|
|
1547 static void
|
|
|
1548 specifier_remove_locale_type (Lisp_Object specifier,
|
|
|
1549 enum spec_locale_type type,
|
|
|
1550 Lisp_Object tag_set, int exact_p)
|
|
|
1551 {
|
|
|
1552 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1553 Lisp_Object prev = Qnil, rest;
|
|
|
1554
|
|
|
1555 assert (type != LOCALE_GLOBAL);
|
|
|
1556 LIST_LOOP (rest, *spec_list)
|
|
|
1557 {
|
|
|
1558 int was_removed;
|
|
|
1559 int remove_spec = 0;
|
|
|
1560 Lisp_Object spec = XCAR (rest);
|
|
173
|
1561
|
|
0
|
1562 /* There may be dead objects floating around */
|
|
|
1563 /* remember, dead windows can become alive again. */
|
|
|
1564 if (!WINDOWP (XCAR (spec)) && object_dead_p (XCAR (spec)))
|
|
|
1565 {
|
|
|
1566 remove_spec = 1;
|
|
|
1567 was_removed = 0;
|
|
|
1568 }
|
|
|
1569 else
|
|
|
1570 {
|
|
|
1571 XCDR (spec) = specifier_process_remove_inst_list (XCDR (spec),
|
|
|
1572 tag_set, exact_p,
|
|
|
1573 &was_removed);
|
|
|
1574 if (NILP (XCDR (spec)))
|
|
|
1575 remove_spec = 1;
|
|
|
1576 }
|
|
|
1577
|
|
|
1578 if (remove_spec)
|
|
|
1579 {
|
|
|
1580 if (NILP (prev))
|
|
|
1581 *spec_list = XCDR (rest);
|
|
|
1582 else
|
|
|
1583 XCDR (prev) = XCDR (rest);
|
|
|
1584 }
|
|
|
1585 else
|
|
|
1586 prev = rest;
|
|
|
1587
|
|
|
1588 if (was_removed)
|
|
|
1589 MAYBE_SPECMETH (XSPECIFIER (specifier), after_change,
|
|
276
|
1590 (bodily_specifier (specifier), XCAR (spec)));
|
|
0
|
1591 }
|
|
|
1592 }
|
|
|
1593
|
|
|
1594 /* NEW_LIST is going to be added to INST_LIST, with add method ADD_METH.
|
|
|
1595 Frob INST_LIST according to ADD_METH. No need to call an after-change
|
|
|
1596 function; the calling function will do this. Return either SPEC_PREPEND
|
|
|
1597 or SPEC_APPEND, indicating whether to prepend or append the NEW_LIST. */
|
|
|
1598
|
|
|
1599 static enum spec_add_meth
|
|
|
1600 handle_multiple_add_insts (Lisp_Object *inst_list,
|
|
|
1601 Lisp_Object new_list,
|
|
|
1602 enum spec_add_meth add_meth)
|
|
|
1603 {
|
|
272
|
1604 switch (add_meth)
|
|
0
|
1605 {
|
|
272
|
1606 case SPEC_REMOVE_TAG_SET_APPEND:
|
|
|
1607 add_meth = SPEC_APPEND;
|
|
|
1608 goto remove_tag_set;
|
|
|
1609 case SPEC_REMOVE_TAG_SET_PREPEND:
|
|
|
1610 add_meth = SPEC_PREPEND;
|
|
|
1611 remove_tag_set:
|
|
|
1612 {
|
|
|
1613 Lisp_Object rest;
|
|
|
1614
|
|
|
1615 LIST_LOOP (rest, new_list)
|
|
|
1616 {
|
|
|
1617 Lisp_Object canontag = canonicalize_tag_set (XCAR (XCAR (rest)));
|
|
|
1618 struct gcpro gcpro1;
|
|
|
1619
|
|
|
1620 GCPRO1 (canontag);
|
|
|
1621 /* pull out all elements from the existing list with the
|
|
|
1622 same tag as any tags in NEW_LIST. */
|
|
|
1623 *inst_list = remassoc_no_quit (canontag, *inst_list);
|
|
|
1624 UNGCPRO;
|
|
|
1625 }
|
|
|
1626 }
|
|
|
1627 return add_meth;
|
|
|
1628 case SPEC_REMOVE_LOCALE:
|
|
0
|
1629 *inst_list = Qnil;
|
|
|
1630 return SPEC_PREPEND;
|
|
272
|
1631 case SPEC_APPEND:
|
|
|
1632 return add_meth;
|
|
|
1633 default:
|
|
|
1634 return SPEC_PREPEND;
|
|
0
|
1635 }
|
|
|
1636 }
|
|
|
1637
|
|
|
1638 /* Given a LOCALE and INST_LIST that is going to be added to SPECIFIER,
|
|
|
1639 copy, canonicalize, and call the going_to_add methods as necessary
|
|
|
1640 to produce a new list that is the one that really will be added
|
|
|
1641 to the specifier. */
|
|
|
1642
|
|
|
1643 static Lisp_Object
|
|
|
1644 build_up_processed_list (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1645 Lisp_Object inst_list)
|
|
|
1646 {
|
|
|
1647 /* The return value of this function must be GCPRO'd. */
|
|
|
1648 Lisp_Object rest, list_to_build_up = Qnil;
|
|
398
|
1649 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
0
|
1650 struct gcpro gcpro1;
|
|
|
1651
|
|
|
1652 GCPRO1 (list_to_build_up);
|
|
|
1653 LIST_LOOP (rest, inst_list)
|
|
|
1654 {
|
|
|
1655 Lisp_Object tag_set = XCAR (XCAR (rest));
|
|
|
1656 Lisp_Object sub_inst_list = Qnil;
|
|
398
|
1657 Lisp_Object instantiator;
|
|
0
|
1658 struct gcpro ngcpro1, ngcpro2;
|
|
|
1659
|
|
398
|
1660 if (HAS_SPECMETH_P (sp, copy_instantiator))
|
|
|
1661 instantiator = SPECMETH (sp, copy_instantiator,
|
|
|
1662 (XCDR (XCAR (rest))));
|
|
|
1663 else
|
|
|
1664 instantiator = Fcopy_tree (XCDR (XCAR (rest)), Qt);
|
|
|
1665
|
|
0
|
1666 NGCPRO2 (instantiator, sub_inst_list);
|
|
|
1667 /* call the will-add method; it may GC */
|
|
272
|
1668 sub_inst_list = HAS_SPECMETH_P (sp, going_to_add) ?
|
|
|
1669 SPECMETH (sp, going_to_add,
|
|
276
|
1670 (bodily_specifier (specifier), locale,
|
|
|
1671 tag_set, instantiator)) :
|
|
272
|
1672 Qt;
|
|
0
|
1673 if (EQ (sub_inst_list, Qt))
|
|
|
1674 /* no change here. */
|
|
|
1675 sub_inst_list = list1 (Fcons (canonicalize_tag_set (tag_set),
|
|
|
1676 instantiator));
|
|
|
1677 else
|
|
|
1678 {
|
|
|
1679 /* now canonicalize all the tag sets in the new objects */
|
|
|
1680 Lisp_Object rest2;
|
|
|
1681 LIST_LOOP (rest2, sub_inst_list)
|
|
|
1682 XCAR (XCAR (rest2)) = canonicalize_tag_set (XCAR (XCAR (rest2)));
|
|
|
1683 }
|
|
|
1684
|
|
|
1685 list_to_build_up = nconc2 (sub_inst_list, list_to_build_up);
|
|
|
1686 NUNGCPRO;
|
|
|
1687 }
|
|
|
1688
|
|
|
1689 RETURN_UNGCPRO (Fnreverse (list_to_build_up));
|
|
|
1690 }
|
|
|
1691
|
|
|
1692 /* Add a specification (locale and instantiator list) to a specifier.
|
|
|
1693 ADD_METH specifies what to do with existing specifications in the
|
|
|
1694 specifier, and is an enum that corresponds to the values in
|
|
|
1695 `add-spec-to-specifier'. The calling routine is responsible for
|
|
|
1696 validating LOCALE and INST-LIST, but the tag-sets in INST-LIST
|
|
|
1697 do not need to be canonicalized. */
|
|
|
1698
|
|
|
1699 /* #### I really need to rethink the after-change
|
|
|
1700 functions to make them easier to use and more efficient. */
|
|
|
1701
|
|
|
1702 static void
|
|
|
1703 specifier_add_spec (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1704 Lisp_Object inst_list, enum spec_add_meth add_meth)
|
|
|
1705 {
|
|
398
|
1706 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
272
|
1707 enum spec_locale_type type = locale_type_from_locale (locale);
|
|
|
1708 Lisp_Object *orig_inst_list, tem;
|
|
0
|
1709 Lisp_Object list_to_build_up = Qnil;
|
|
|
1710 struct gcpro gcpro1;
|
|
|
1711
|
|
|
1712 GCPRO1 (list_to_build_up);
|
|
|
1713 list_to_build_up = build_up_processed_list (specifier, locale, inst_list);
|
|
|
1714 /* Now handle REMOVE_LOCALE_TYPE and REMOVE_ALL. These are the
|
|
|
1715 add-meth types that affect locales other than this one. */
|
|
|
1716 if (add_meth == SPEC_REMOVE_LOCALE_TYPE)
|
|
|
1717 specifier_remove_locale_type (specifier, type, Qnil, 0);
|
|
|
1718 else if (add_meth == SPEC_REMOVE_ALL)
|
|
|
1719 {
|
|
|
1720 specifier_remove_locale_type (specifier, LOCALE_BUFFER, Qnil, 0);
|
|
|
1721 specifier_remove_locale_type (specifier, LOCALE_WINDOW, Qnil, 0);
|
|
272
|
1722 specifier_remove_locale_type (specifier, LOCALE_FRAME, Qnil, 0);
|
|
0
|
1723 specifier_remove_locale_type (specifier, LOCALE_DEVICE, Qnil, 0);
|
|
|
1724 specifier_remove_spec (specifier, Qglobal, LOCALE_GLOBAL, Qnil, 0);
|
|
|
1725 }
|
|
|
1726
|
|
|
1727 orig_inst_list = specifier_get_inst_list (specifier, locale, type);
|
|
|
1728 if (!orig_inst_list)
|
|
|
1729 orig_inst_list = specifier_new_spec (specifier, locale, type);
|
|
|
1730 add_meth = handle_multiple_add_insts (orig_inst_list, list_to_build_up,
|
|
|
1731 add_meth);
|
|
|
1732
|
|
|
1733 if (add_meth == SPEC_PREPEND)
|
|
272
|
1734 tem = nconc2 (list_to_build_up, *orig_inst_list);
|
|
0
|
1735 else if (add_meth == SPEC_APPEND)
|
|
272
|
1736 tem = nconc2 (*orig_inst_list, list_to_build_up);
|
|
0
|
1737 else
|
|
|
1738 abort ();
|
|
173
|
1739
|
|
272
|
1740 *orig_inst_list = tem;
|
|
|
1741
|
|
0
|
1742 UNGCPRO;
|
|
|
1743
|
|
|
1744 /* call the after-change method */
|
|
276
|
1745 MAYBE_SPECMETH (sp, after_change,
|
|
|
1746 (bodily_specifier (specifier), locale));
|
|
0
|
1747 }
|
|
|
1748
|
|
|
1749 static void
|
|
|
1750 specifier_copy_spec (Lisp_Object specifier, Lisp_Object dest,
|
|
|
1751 Lisp_Object locale, enum spec_locale_type type,
|
|
|
1752 Lisp_Object tag_set, int exact_p,
|
|
|
1753 enum spec_add_meth add_meth)
|
|
|
1754 {
|
|
|
1755 Lisp_Object inst_list =
|
|
|
1756 specifier_get_external_inst_list (specifier, locale, type, tag_set,
|
|
|
1757 exact_p, 0, 0);
|
|
|
1758 specifier_add_spec (dest, locale, inst_list, add_meth);
|
|
|
1759 }
|
|
|
1760
|
|
|
1761 static void
|
|
|
1762 specifier_copy_locale_type (Lisp_Object specifier, Lisp_Object dest,
|
|
|
1763 enum spec_locale_type type,
|
|
|
1764 Lisp_Object tag_set, int exact_p,
|
|
|
1765 enum spec_add_meth add_meth)
|
|
|
1766 {
|
|
|
1767 Lisp_Object *src_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1768 Lisp_Object rest;
|
|
|
1769
|
|
|
1770 /* This algorithm is O(n^2) in running time.
|
|
|
1771 It's certainly possible to implement an O(n log n) algorithm,
|
|
|
1772 but I doubt there's any need to. */
|
|
173
|
1773
|
|
0
|
1774 LIST_LOOP (rest, *src_list)
|
|
|
1775 {
|
|
|
1776 Lisp_Object spec = XCAR (rest);
|
|
|
1777 /* There may be dead objects floating around */
|
|
|
1778 /* remember, dead windows can become alive again. */
|
|
|
1779 if (WINDOWP (XCAR (spec)) || !object_dead_p (XCAR (spec)))
|
|
|
1780 specifier_add_spec
|
|
|
1781 (dest, XCAR (spec),
|
|
|
1782 specifier_process_inst_list (XCDR (spec), tag_set, exact_p, 0, 0),
|
|
|
1783 add_meth);
|
|
|
1784 }
|
|
173
|
1785 }
|
|
0
|
1786
|
|
|
1787 /* map MAPFUN over the locales in SPECIFIER that are given in LOCALE.
|
|
|
1788 CLOSURE is passed unchanged to MAPFUN. LOCALE can be one of
|
|
|
1789
|
|
|
1790 -- nil (same as 'all)
|
|
|
1791 -- a single locale, locale type, or 'all
|
|
|
1792 -- a list of locales, locale types, and/or 'all
|
|
|
1793
|
|
|
1794 MAPFUN is called for each locale and locale type given; for 'all,
|
|
|
1795 it is called for the locale 'global and for the four possible
|
|
|
1796 locale types. In each invocation, either LOCALE will be a locale
|
|
|
1797 and LOCALE_TYPE will be the locale type of this locale,
|
|
|
1798 or LOCALE will be nil and LOCALE_TYPE will be a locale type.
|
|
|
1799 If MAPFUN ever returns non-zero, the mapping is halted and the
|
|
|
1800 value returned is returned from map_specifier(). Otherwise, the
|
|
|
1801 mapping proceeds to the end and map_specifier() returns 0.
|
|
|
1802 */
|
|
|
1803
|
|
|
1804 static int
|
|
|
1805 map_specifier (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1806 int (*mapfun) (Lisp_Object specifier,
|
|
|
1807 Lisp_Object locale,
|
|
|
1808 enum spec_locale_type locale_type,
|
|
|
1809 Lisp_Object tag_set,
|
|
|
1810 int exact_p,
|
|
|
1811 void *closure),
|
|
|
1812 Lisp_Object tag_set, Lisp_Object exact_p,
|
|
|
1813 void *closure)
|
|
|
1814 {
|
|
|
1815 int retval = 0;
|
|
|
1816 Lisp_Object rest;
|
|
|
1817 struct gcpro gcpro1, gcpro2;
|
|
|
1818
|
|
|
1819 GCPRO2 (tag_set, locale);
|
|
|
1820 locale = decode_locale_list (locale);
|
|
|
1821 tag_set = decode_specifier_tag_set (tag_set);
|
|
|
1822 tag_set = canonicalize_tag_set (tag_set);
|
|
|
1823
|
|
|
1824 LIST_LOOP (rest, locale)
|
|
|
1825 {
|
|
|
1826 Lisp_Object theloc = XCAR (rest);
|
|
|
1827 if (!NILP (Fvalid_specifier_locale_p (theloc)))
|
|
|
1828 {
|
|
|
1829 retval = (*mapfun) (specifier, theloc,
|
|
|
1830 locale_type_from_locale (theloc),
|
|
|
1831 tag_set, !NILP (exact_p), closure);
|
|
|
1832 if (retval)
|
|
|
1833 break;
|
|
|
1834 }
|
|
|
1835 else if (!NILP (Fvalid_specifier_locale_type_p (theloc)))
|
|
|
1836 {
|
|
|
1837 retval = (*mapfun) (specifier, Qnil,
|
|
|
1838 decode_locale_type (theloc), tag_set,
|
|
|
1839 !NILP (exact_p), closure);
|
|
|
1840 if (retval)
|
|
|
1841 break;
|
|
|
1842 }
|
|
|
1843 else
|
|
|
1844 {
|
|
|
1845 assert (EQ (theloc, Qall));
|
|
|
1846 retval = (*mapfun) (specifier, Qnil, LOCALE_BUFFER, tag_set,
|
|
|
1847 !NILP (exact_p), closure);
|
|
|
1848 if (retval)
|
|
|
1849 break;
|
|
|
1850 retval = (*mapfun) (specifier, Qnil, LOCALE_WINDOW, tag_set,
|
|
|
1851 !NILP (exact_p), closure);
|
|
|
1852 if (retval)
|
|
|
1853 break;
|
|
|
1854 retval = (*mapfun) (specifier, Qnil, LOCALE_FRAME, tag_set,
|
|
|
1855 !NILP (exact_p), closure);
|
|
|
1856 if (retval)
|
|
|
1857 break;
|
|
|
1858 retval = (*mapfun) (specifier, Qnil, LOCALE_DEVICE, tag_set,
|
|
|
1859 !NILP (exact_p), closure);
|
|
|
1860 if (retval)
|
|
|
1861 break;
|
|
|
1862 retval = (*mapfun) (specifier, Qglobal, LOCALE_GLOBAL, tag_set,
|
|
|
1863 !NILP (exact_p), closure);
|
|
|
1864 if (retval)
|
|
|
1865 break;
|
|
|
1866 }
|
|
|
1867 }
|
|
|
1868
|
|
|
1869 UNGCPRO;
|
|
|
1870 return retval;
|
|
|
1871 }
|
|
|
1872
|
|
20
|
1873 DEFUN ("add-spec-to-specifier", Fadd_spec_to_specifier, 2, 5, 0, /*
|
|
0
|
1874 Add a specification to SPECIFIER.
|
|
284
|
1875 The specification maps from LOCALE (which should be a window, buffer,
|
|
0
|
1876 frame, device, or 'global, and defaults to 'global) to INSTANTIATOR,
|
|
|
1877 whose allowed values depend on the type of the specifier. Optional
|
|
|
1878 argument TAG-SET limits the instantiator to apply only to the specified
|
|
|
1879 tag set, which should be a list of tags all of which must match the
|
|
|
1880 device being instantiated over (tags are a device type, a device class,
|
|
|
1881 or tags defined with `define-specifier-tag'). Specifying a single
|
|
|
1882 symbol for TAG-SET is equivalent to specifying a one-element list
|
|
|
1883 containing that symbol. Optional argument HOW-TO-ADD specifies what to
|
|
|
1884 do if there are already specifications in the specifier.
|
|
|
1885 It should be one of
|
|
|
1886
|
|
|
1887 'prepend Put at the beginning of the current list of
|
|
|
1888 instantiators for LOCALE.
|
|
|
1889 'append Add to the end of the current list of
|
|
|
1890 instantiators for LOCALE.
|
|
|
1891 'remove-tag-set-prepend (this is the default)
|
|
|
1892 Remove any existing instantiators whose tag set is
|
|
|
1893 the same as TAG-SET; then put the new instantiator
|
|
185
|
1894 at the beginning of the current list. ("Same tag
|
|
|
1895 set" means that they contain the same elements.
|
|
0
|
1896 The order may be different.)
|
|
|
1897 'remove-tag-set-append
|
|
|
1898 Remove any existing instantiators whose tag set is
|
|
|
1899 the same as TAG-SET; then put the new instantiator
|
|
|
1900 at the end of the current list.
|
|
|
1901 'remove-locale Remove all previous instantiators for this locale
|
|
|
1902 before adding the new spec.
|
|
|
1903 'remove-locale-type Remove all specifications for all locales of the
|
|
|
1904 same type as LOCALE (this includes LOCALE itself)
|
|
|
1905 before adding the new spec.
|
|
|
1906 'remove-all Remove all specifications from the specifier
|
|
|
1907 before adding the new spec.
|
|
|
1908
|
|
|
1909 You can retrieve the specifications for a particular locale or locale type
|
|
|
1910 with the function `specifier-spec-list' or `specifier-specs'.
|
|
20
|
1911 */
|
|
|
1912 (specifier, instantiator, locale, tag_set, how_to_add))
|
|
0
|
1913 {
|
|
|
1914 enum spec_add_meth add_meth;
|
|
|
1915 Lisp_Object inst_list;
|
|
|
1916 struct gcpro gcpro1;
|
|
|
1917
|
|
|
1918 CHECK_SPECIFIER (specifier);
|
|
280
|
1919 check_modifiable_specifier (specifier);
|
|
380
|
1920
|
|
0
|
1921 locale = decode_locale (locale);
|
|
|
1922 check_valid_instantiator (instantiator,
|
|
|
1923 decode_specifier_type
|
|
|
1924 (Fspecifier_type (specifier), ERROR_ME),
|
|
|
1925 ERROR_ME);
|
|
|
1926 /* tag_set might be newly-created material, but it's part of inst_list
|
|
|
1927 so is properly GC-protected. */
|
|
|
1928 tag_set = decode_specifier_tag_set (tag_set);
|
|
|
1929 add_meth = decode_how_to_add_specification (how_to_add);
|
|
|
1930
|
|
|
1931 inst_list = list1 (Fcons (tag_set, instantiator));
|
|
|
1932 GCPRO1 (inst_list);
|
|
280
|
1933 specifier_add_spec (specifier, locale, inst_list, add_meth);
|
|
0
|
1934 recompute_cached_specifier_everywhere (specifier);
|
|
|
1935 RETURN_UNGCPRO (Qnil);
|
|
|
1936 }
|
|
|
1937
|
|
20
|
1938 DEFUN ("add-spec-list-to-specifier", Fadd_spec_list_to_specifier, 2, 3, 0, /*
|
|
0
|
1939 Add a spec-list (a list of specifications) to SPECIFIER.
|
|
|
1940 The format of a spec-list is
|
|
|
1941
|
|
|
1942 ((LOCALE (TAG-SET . INSTANTIATOR) ...) ...)
|
|
|
1943
|
|
|
1944 where
|
|
284
|
1945 LOCALE := a window, a buffer, a frame, a device, or 'global
|
|
0
|
1946 TAG-SET := an unordered list of zero or more TAGS, each of which
|
|
|
1947 is a symbol
|
|
|
1948 TAG := a device class (see `valid-device-class-p'), a device type
|
|
|
1949 (see `valid-console-type-p'), or a tag defined with
|
|
|
1950 `define-specifier-tag'
|
|
|
1951 INSTANTIATOR := format determined by the type of specifier
|
|
|
1952
|
|
|
1953 The pair (TAG-SET . INSTANTIATOR) is called an `inst-pair'.
|
|
|
1954 A list of inst-pairs is called an `inst-list'.
|
|
|
1955 The pair (LOCALE . INST-LIST) is called a `specification' or `spec'.
|
|
|
1956 A spec-list, then, can be viewed as a list of specifications.
|
|
|
1957
|
|
|
1958 HOW-TO-ADD specifies how to combine the new specifications with
|
|
|
1959 the existing ones, and has the same semantics as for
|
|
|
1960 `add-spec-to-specifier'.
|
|
|
1961
|
|
|
1962 In many circumstances, the higher-level function `set-specifier' is
|
|
|
1963 more convenient and should be used instead.
|
|
20
|
1964 */
|
|
|
1965 (specifier, spec_list, how_to_add))
|
|
0
|
1966 {
|
|
|
1967 enum spec_add_meth add_meth;
|
|
|
1968 Lisp_Object rest;
|
|
|
1969
|
|
|
1970 CHECK_SPECIFIER (specifier);
|
|
280
|
1971 check_modifiable_specifier (specifier);
|
|
|
1972
|
|
0
|
1973 check_valid_spec_list (spec_list,
|
|
|
1974 decode_specifier_type
|
|
|
1975 (Fspecifier_type (specifier), ERROR_ME),
|
|
|
1976 ERROR_ME);
|
|
|
1977 add_meth = decode_how_to_add_specification (how_to_add);
|
|
|
1978
|
|
|
1979 LIST_LOOP (rest, spec_list)
|
|
|
1980 {
|
|
|
1981 /* Placating the GCC god. */
|
|
272
|
1982 Lisp_Object specification = XCAR (rest);
|
|
|
1983 Lisp_Object locale = XCAR (specification);
|
|
|
1984 Lisp_Object inst_list = XCDR (specification);
|
|
|
1985
|
|
280
|
1986 specifier_add_spec (specifier, locale, inst_list, add_meth);
|
|
173
|
1987 }
|
|
0
|
1988 recompute_cached_specifier_everywhere (specifier);
|
|
|
1989 return Qnil;
|
|
|
1990 }
|
|
|
1991
|
|
276
|
1992 void
|
|
|
1993 add_spec_to_ghost_specifier (Lisp_Object specifier, Lisp_Object instantiator,
|
|
|
1994 Lisp_Object locale, Lisp_Object tag_set,
|
|
|
1995 Lisp_Object how_to_add)
|
|
|
1996 {
|
|
280
|
1997 int depth = unlock_ghost_specifiers_protected ();
|
|
|
1998 Fadd_spec_to_specifier (XSPECIFIER(specifier)->fallback,
|
|
|
1999 instantiator, locale, tag_set, how_to_add);
|
|
276
|
2000 unbind_to (depth, Qnil);
|
|
|
2001 }
|
|
|
2002
|
|
0
|
2003 struct specifier_spec_list_closure
|
|
|
2004 {
|
|
|
2005 Lisp_Object head, tail;
|
|
|
2006 };
|
|
|
2007
|
|
|
2008 static int
|
|
|
2009 specifier_spec_list_mapfun (Lisp_Object specifier,
|
|
|
2010 Lisp_Object locale,
|
|
|
2011 enum spec_locale_type locale_type,
|
|
|
2012 Lisp_Object tag_set,
|
|
|
2013 int exact_p,
|
|
|
2014 void *closure)
|
|
|
2015 {
|
|
|
2016 struct specifier_spec_list_closure *cl =
|
|
|
2017 (struct specifier_spec_list_closure *) closure;
|
|
|
2018 Lisp_Object partial;
|
|
|
2019
|
|
|
2020 if (NILP (locale))
|
|
|
2021 partial = specifier_get_external_spec_list (specifier,
|
|
|
2022 locale_type,
|
|
|
2023 tag_set, exact_p);
|
|
|
2024 else
|
|
|
2025 {
|
|
|
2026 partial = specifier_get_external_inst_list (specifier, locale,
|
|
|
2027 locale_type, tag_set,
|
|
|
2028 exact_p, 0, 1);
|
|
|
2029 if (!NILP (partial))
|
|
|
2030 partial = list1 (Fcons (locale, partial));
|
|
|
2031 }
|
|
|
2032 if (NILP (partial))
|
|
|
2033 return 0;
|
|
|
2034
|
|
|
2035 /* tack on the new list */
|
|
|
2036 if (NILP (cl->tail))
|
|
|
2037 cl->head = cl->tail = partial;
|
|
|
2038 else
|
|
|
2039 XCDR (cl->tail) = partial;
|
|
|
2040 /* find the new tail */
|
|
|
2041 while (CONSP (XCDR (cl->tail)))
|
|
|
2042 cl->tail = XCDR (cl->tail);
|
|
|
2043 return 0;
|
|
|
2044 }
|
|
|
2045
|
|
|
2046 /* For the given SPECIFIER create and return a list of all specs
|
|
|
2047 contained within it, subject to LOCALE. If LOCALE is a locale, only
|
|
|
2048 specs in that locale will be returned. If LOCALE is a locale type,
|
|
|
2049 all specs in all locales of that type will be returned. If LOCALE is
|
|
|
2050 nil, all specs will be returned. This always copies lists and never
|
|
|
2051 returns the actual lists, because we do not want someone manipulating
|
|
|
2052 the actual objects. This may cause a slight loss of potential
|
|
|
2053 functionality but if we were to allow it then a user could manage to
|
|
|
2054 violate our assertion that the specs contained in the actual
|
|
|
2055 specifier lists are all valid. */
|
|
|
2056
|
|
20
|
2057 DEFUN ("specifier-spec-list", Fspecifier_spec_list, 1, 4, 0, /*
|
|
0
|
2058 Return the spec-list of specifications for SPECIFIER in LOCALE.
|
|
|
2059
|
|
|
2060 If LOCALE is a particular locale (a buffer, window, frame, device,
|
|
|
2061 or 'global), a spec-list consisting of the specification for that
|
|
|
2062 locale will be returned.
|
|
|
2063
|
|
|
2064 If LOCALE is a locale type (i.e. 'buffer, 'window, 'frame, or 'device),
|
|
|
2065 a spec-list of the specifications for all locales of that type will be
|
|
|
2066 returned.
|
|
|
2067
|
|
|
2068 If LOCALE is nil or 'all, a spec-list of all specifications in SPECIFIER
|
|
|
2069 will be returned.
|
|
|
2070
|
|
|
2071 LOCALE can also be a list of locales, locale types, and/or 'all; the
|
|
|
2072 result is as if `specifier-spec-list' were called on each element of the
|
|
|
2073 list and the results concatenated together.
|
|
|
2074
|
|
|
2075 Only instantiators where TAG-SET (a list of zero or more tags) is a
|
|
|
2076 subset of (or possibly equal to) the instantiator's tag set are returned.
|
|
272
|
2077 \(The default value of nil is a subset of all tag sets, so in this case
|
|
0
|
2078 no instantiators will be screened out.) If EXACT-P is non-nil, however,
|
|
|
2079 TAG-SET must be equal to an instantiator's tag set for the instantiator
|
|
|
2080 to be returned.
|
|
20
|
2081 */
|
|
70
|
2082 (specifier, locale, tag_set, exact_p))
|
|
0
|
2083 {
|
|
|
2084 struct specifier_spec_list_closure cl;
|
|
|
2085 struct gcpro gcpro1, gcpro2;
|
|
|
2086
|
|
|
2087 CHECK_SPECIFIER (specifier);
|
|
|
2088 cl.head = cl.tail = Qnil;
|
|
|
2089 GCPRO2 (cl.head, cl.tail);
|
|
280
|
2090 map_specifier (specifier, locale, specifier_spec_list_mapfun,
|
|
0
|
2091 tag_set, exact_p, &cl);
|
|
|
2092 UNGCPRO;
|
|
|
2093 return cl.head;
|
|
|
2094 }
|
|
|
2095
|
|
|
2096
|
|
20
|
2097 DEFUN ("specifier-specs", Fspecifier_specs, 1, 4, 0, /*
|
|
0
|
2098 Return the specification(s) for SPECIFIER in LOCALE.
|
|
|
2099
|
|
|
2100 If LOCALE is a single locale or is a list of one element containing a
|
|
185
|
2101 single locale, then a "short form" of the instantiators for that locale
|
|
0
|
2102 will be returned. Otherwise, this function is identical to
|
|
|
2103 `specifier-spec-list'.
|
|
|
2104
|
|
185
|
2105 The "short form" is designed for readability and not for ease of use
|
|
0
|
2106 in Lisp programs, and is as follows:
|
|
|
2107
|
|
|
2108 1. If there is only one instantiator, then an inst-pair (i.e. cons of
|
|
|
2109 tag and instantiator) will be returned; otherwise a list of
|
|
|
2110 inst-pairs will be returned.
|
|
|
2111 2. For each inst-pair returned, if the instantiator's tag is 'any,
|
|
|
2112 the tag will be removed and the instantiator itself will be returned
|
|
|
2113 instead of the inst-pair.
|
|
|
2114 3. If there is only one instantiator, its value is nil, and its tag is
|
|
|
2115 'any, a one-element list containing nil will be returned rather
|
|
|
2116 than just nil, to distinguish this case from there being no
|
|
|
2117 instantiators at all.
|
|
20
|
2118 */
|
|
|
2119 (specifier, locale, tag_set, exact_p))
|
|
0
|
2120 {
|
|
|
2121 if (!NILP (Fvalid_specifier_locale_p (locale)) ||
|
|
|
2122 (CONSP (locale) && !NILP (Fvalid_specifier_locale_p (XCAR (locale))) &&
|
|
|
2123 NILP (XCDR (locale))))
|
|
|
2124 {
|
|
|
2125 struct gcpro gcpro1;
|
|
|
2126
|
|
|
2127 CHECK_SPECIFIER (specifier);
|
|
|
2128 if (CONSP (locale))
|
|
|
2129 locale = XCAR (locale);
|
|
|
2130 GCPRO1 (tag_set);
|
|
|
2131 tag_set = decode_specifier_tag_set (tag_set);
|
|
|
2132 tag_set = canonicalize_tag_set (tag_set);
|
|
|
2133 RETURN_UNGCPRO
|
|
280
|
2134 (specifier_get_external_inst_list (specifier, locale,
|
|
0
|
2135 locale_type_from_locale (locale),
|
|
280
|
2136 tag_set, !NILP (exact_p), 1, 1));
|
|
0
|
2137 }
|
|
|
2138 else
|
|
|
2139 return Fspecifier_spec_list (specifier, locale, tag_set, exact_p);
|
|
|
2140 }
|
|
|
2141
|
|
|
2142 static int
|
|
|
2143 remove_specifier_mapfun (Lisp_Object specifier,
|
|
|
2144 Lisp_Object locale,
|
|
|
2145 enum spec_locale_type locale_type,
|
|
|
2146 Lisp_Object tag_set,
|
|
|
2147 int exact_p,
|
|
|
2148 void *ignored_closure)
|
|
|
2149 {
|
|
|
2150 if (NILP (locale))
|
|
|
2151 specifier_remove_locale_type (specifier, locale_type, tag_set, exact_p);
|
|
|
2152 else
|
|
|
2153 specifier_remove_spec (specifier, locale, locale_type, tag_set, exact_p);
|
|
|
2154 return 0;
|
|
|
2155 }
|
|
|
2156
|
|
20
|
2157 DEFUN ("remove-specifier", Fremove_specifier, 1, 4, 0, /*
|
|
0
|
2158 Remove specification(s) for SPECIFIER.
|
|
|
2159
|
|
284
|
2160 If LOCALE is a particular locale (a window, buffer, frame, device,
|
|
0
|
2161 or 'global), the specification for that locale will be removed.
|
|
|
2162
|
|
284
|
2163 If instead, LOCALE is a locale type (i.e. 'window, 'buffer, 'frame,
|
|
0
|
2164 or 'device), the specifications for all locales of that type will be
|
|
|
2165 removed.
|
|
|
2166
|
|
|
2167 If LOCALE is nil or 'all, all specifications will be removed.
|
|
|
2168
|
|
|
2169 LOCALE can also be a list of locales, locale types, and/or 'all; this
|
|
|
2170 is equivalent to calling `remove-specifier' for each of the elements
|
|
|
2171 in the list.
|
|
|
2172
|
|
|
2173 Only instantiators where TAG-SET (a list of zero or more tags) is a
|
|
|
2174 subset of (or possibly equal to) the instantiator's tag set are removed.
|
|
16
|
2175 The default value of nil is a subset of all tag sets, so in this case
|
|
|
2176 no instantiators will be screened out. If EXACT-P is non-nil, however,
|
|
0
|
2177 TAG-SET must be equal to an instantiator's tag set for the instantiator
|
|
|
2178 to be removed.
|
|
20
|
2179 */
|
|
|
2180 (specifier, locale, tag_set, exact_p))
|
|
0
|
2181 {
|
|
|
2182 CHECK_SPECIFIER (specifier);
|
|
280
|
2183 check_modifiable_specifier (specifier);
|
|
|
2184
|
|
|
2185 map_specifier (specifier, locale, remove_specifier_mapfun,
|
|
|
2186 tag_set, exact_p, 0);
|
|
0
|
2187 recompute_cached_specifier_everywhere (specifier);
|
|
|
2188 return Qnil;
|
|
|
2189 }
|
|
|
2190
|
|
276
|
2191 void
|
|
|
2192 remove_ghost_specifier (Lisp_Object specifier, Lisp_Object locale,
|
|
|
2193 Lisp_Object tag_set, Lisp_Object exact_p)
|
|
|
2194 {
|
|
280
|
2195 int depth = unlock_ghost_specifiers_protected ();
|
|
|
2196 Fremove_specifier (XSPECIFIER(specifier)->fallback,
|
|
|
2197 locale, tag_set, exact_p);
|
|
276
|
2198 unbind_to (depth, Qnil);
|
|
|
2199 }
|
|
|
2200
|
|
0
|
2201 struct copy_specifier_closure
|
|
|
2202 {
|
|
|
2203 Lisp_Object dest;
|
|
|
2204 enum spec_add_meth add_meth;
|
|
|
2205 int add_meth_is_nil;
|
|
|
2206 };
|
|
|
2207
|
|
|
2208 static int
|
|
|
2209 copy_specifier_mapfun (Lisp_Object specifier,
|
|
|
2210 Lisp_Object locale,
|
|
173
|
2211 enum spec_locale_type locale_type,
|
|
0
|
2212 Lisp_Object tag_set,
|
|
|
2213 int exact_p,
|
|
|
2214 void *closure)
|
|
|
2215 {
|
|
|
2216 struct copy_specifier_closure *cl =
|
|
|
2217 (struct copy_specifier_closure *) closure;
|
|
|
2218
|
|
|
2219 if (NILP (locale))
|
|
|
2220 specifier_copy_locale_type (specifier, cl->dest, locale_type,
|
|
|
2221 tag_set, exact_p,
|
|
|
2222 cl->add_meth_is_nil ?
|
|
|
2223 SPEC_REMOVE_LOCALE_TYPE :
|
|
|
2224 cl->add_meth);
|
|
|
2225 else
|
|
|
2226 specifier_copy_spec (specifier, cl->dest, locale, locale_type,
|
|
|
2227 tag_set, exact_p,
|
|
|
2228 cl->add_meth_is_nil ? SPEC_REMOVE_LOCALE :
|
|
|
2229 cl->add_meth);
|
|
|
2230 return 0;
|
|
|
2231 }
|
|
|
2232
|
|
20
|
2233 DEFUN ("copy-specifier", Fcopy_specifier, 1, 6, 0, /*
|
|
0
|
2234 Copy SPECIFIER to DEST, or create a new one if DEST is nil.
|
|
|
2235
|
|
|
2236 If DEST is nil or omitted, a new specifier will be created and the
|
|
|
2237 specifications copied into it. Otherwise, the specifications will be
|
|
|
2238 copied into the existing specifier in DEST.
|
|
|
2239
|
|
|
2240 If LOCALE is nil or 'all, all specifications will be copied. If LOCALE
|
|
|
2241 is a particular locale, the specification for that particular locale will
|
|
|
2242 be copied. If LOCALE is a locale type, the specifications for all locales
|
|
|
2243 of that type will be copied. LOCALE can also be a list of locales,
|
|
|
2244 locale types, and/or 'all; this is equivalent to calling `copy-specifier'
|
|
|
2245 for each of the elements of the list. See `specifier-spec-list' for more
|
|
|
2246 information about LOCALE.
|
|
|
2247
|
|
|
2248 Only instantiators where TAG-SET (a list of zero or more tags) is a
|
|
|
2249 subset of (or possibly equal to) the instantiator's tag set are copied.
|
|
16
|
2250 The default value of nil is a subset of all tag sets, so in this case
|
|
|
2251 no instantiators will be screened out. If EXACT-P is non-nil, however,
|
|
0
|
2252 TAG-SET must be equal to an instantiator's tag set for the instantiator
|
|
|
2253 to be copied.
|
|
|
2254
|
|
|
2255 Optional argument HOW-TO-ADD specifies what to do with existing
|
|
|
2256 specifications in DEST. If nil, then whichever locales or locale types
|
|
|
2257 are copied will first be completely erased in DEST. Otherwise, it is
|
|
|
2258 the same as in `add-spec-to-specifier'.
|
|
20
|
2259 */
|
|
|
2260 (specifier, dest, locale, tag_set, exact_p, how_to_add))
|
|
0
|
2261 {
|
|
|
2262 struct gcpro gcpro1;
|
|
|
2263 struct copy_specifier_closure cl;
|
|
|
2264
|
|
|
2265 CHECK_SPECIFIER (specifier);
|
|
|
2266 if (NILP (how_to_add))
|
|
|
2267 cl.add_meth_is_nil = 1;
|
|
|
2268 else
|
|
|
2269 cl.add_meth_is_nil = 0;
|
|
|
2270 cl.add_meth = decode_how_to_add_specification (how_to_add);
|
|
|
2271 if (NILP (dest))
|
|
|
2272 {
|
|
|
2273 /* #### What about copying the extra data? */
|
|
|
2274 dest = make_specifier (XSPECIFIER (specifier)->methods);
|
|
|
2275 }
|
|
|
2276 else
|
|
|
2277 {
|
|
|
2278 CHECK_SPECIFIER (dest);
|
|
280
|
2279 check_modifiable_specifier (dest);
|
|
0
|
2280 if (XSPECIFIER (dest)->methods != XSPECIFIER (specifier)->methods)
|
|
|
2281 error ("Specifiers not of same type");
|
|
|
2282 }
|
|
|
2283
|
|
|
2284 cl.dest = dest;
|
|
|
2285 GCPRO1 (dest);
|
|
280
|
2286 map_specifier (specifier, locale, copy_specifier_mapfun,
|
|
|
2287 tag_set, exact_p, &cl);
|
|
0
|
2288 UNGCPRO;
|
|
276
|
2289 recompute_cached_specifier_everywhere (dest);
|
|
0
|
2290 return dest;
|
|
|
2291 }
|
|
|
2292
|
|
|
2293
|
|
|
2294 /************************************************************************/
|
|
|
2295 /* Instancing */
|
|
|
2296 /************************************************************************/
|
|
|
2297
|
|
|
2298 static Lisp_Object
|
|
|
2299 call_validate_matchspec_method (Lisp_Object boxed_method,
|
|
|
2300 Lisp_Object matchspec)
|
|
|
2301 {
|
|
|
2302 ((void (*)(Lisp_Object)) get_opaque_ptr (boxed_method)) (matchspec);
|
|
|
2303 return Qt;
|
|
|
2304 }
|
|
|
2305
|
|
|
2306 static Lisp_Object
|
|
|
2307 check_valid_specifier_matchspec (Lisp_Object matchspec,
|
|
|
2308 struct specifier_methods *meths,
|
|
|
2309 Error_behavior errb)
|
|
|
2310 {
|
|
|
2311 if (meths->validate_matchspec_method)
|
|
|
2312 {
|
|
|
2313 Lisp_Object retval;
|
|
|
2314
|
|
|
2315 if (ERRB_EQ (errb, ERROR_ME))
|
|
|
2316 {
|
|
|
2317 (meths->validate_matchspec_method) (matchspec);
|
|
|
2318 retval = Qt;
|
|
|
2319 }
|
|
|
2320 else
|
|
|
2321 {
|
|
|
2322 Lisp_Object opaque =
|
|
|
2323 make_opaque_ptr ((void *) meths->validate_matchspec_method);
|
|
|
2324 struct gcpro gcpro1;
|
|
|
2325
|
|
|
2326 GCPRO1 (opaque);
|
|
74
|
2327 retval = call_with_suspended_errors
|
|
82
|
2328 ((lisp_fn_t) call_validate_matchspec_method,
|
|
|
2329 Qnil, Qspecifier, errb, 2, opaque, matchspec);
|
|
173
|
2330
|
|
0
|
2331 free_opaque_ptr (opaque);
|
|
|
2332 UNGCPRO;
|
|
|
2333 }
|
|
|
2334
|
|
|
2335 return retval;
|
|
|
2336 }
|
|
|
2337 else
|
|
|
2338 {
|
|
|
2339 maybe_signal_simple_error
|
|
|
2340 ("Matchspecs not allowed for this specifier type",
|
|
|
2341 intern (meths->name), Qspecifier, errb);
|
|
|
2342 return Qnil;
|
|
|
2343 }
|
|
|
2344 }
|
|
|
2345
|
|
20
|
2346 DEFUN ("check-valid-specifier-matchspec", Fcheck_valid_specifier_matchspec, 2, 2, 0, /*
|
|
0
|
2347 Signal an error if MATCHSPEC is invalid for SPECIFIER-TYPE.
|
|
|
2348 See `specifier-matching-instance' for a description of matchspecs.
|
|
20
|
2349 */
|
|
|
2350 (matchspec, specifier_type))
|
|
0
|
2351 {
|
|
|
2352 struct specifier_methods *meths = decode_specifier_type (specifier_type,
|
|
|
2353 ERROR_ME);
|
|
|
2354
|
|
|
2355 return check_valid_specifier_matchspec (matchspec, meths, ERROR_ME);
|
|
|
2356 }
|
|
|
2357
|
|
20
|
2358 DEFUN ("valid-specifier-matchspec-p", Fvalid_specifier_matchspec_p, 2, 2, 0, /*
|
|
0
|
2359 Return non-nil if MATCHSPEC is valid for SPECIFIER-TYPE.
|
|
|
2360 See `specifier-matching-instance' for a description of matchspecs.
|
|
20
|
2361 */
|
|
|
2362 (matchspec, specifier_type))
|
|
0
|
2363 {
|
|
|
2364 struct specifier_methods *meths = decode_specifier_type (specifier_type,
|
|
|
2365 ERROR_ME);
|
|
|
2366
|
|
|
2367 return check_valid_specifier_matchspec (matchspec, meths, ERROR_ME_NOT);
|
|
|
2368 }
|
|
|
2369
|
|
|
2370 /* This function is purposely not callable from Lisp. If a Lisp
|
|
|
2371 caller wants to set a fallback, they should just set the
|
|
|
2372 global value. */
|
|
173
|
2373
|
|
0
|
2374 void
|
|
|
2375 set_specifier_fallback (Lisp_Object specifier, Lisp_Object fallback)
|
|
|
2376 {
|
|
398
|
2377 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
0
|
2378 assert (SPECIFIERP (fallback) ||
|
|
|
2379 !NILP (Fvalid_inst_list_p (fallback, Fspecifier_type (specifier))));
|
|
|
2380 if (SPECIFIERP (fallback))
|
|
|
2381 assert (EQ (Fspecifier_type (specifier), Fspecifier_type (fallback)));
|
|
276
|
2382 if (BODILY_SPECIFIER_P (sp))
|
|
|
2383 GHOST_SPECIFIER(sp)->fallback = fallback;
|
|
|
2384 else
|
|
|
2385 sp->fallback = fallback;
|
|
0
|
2386 /* call the after-change method */
|
|
276
|
2387 MAYBE_SPECMETH (sp, after_change,
|
|
|
2388 (bodily_specifier (specifier), Qfallback));
|
|
0
|
2389 recompute_cached_specifier_everywhere (specifier);
|
|
|
2390 }
|
|
|
2391
|
|
20
|
2392 DEFUN ("specifier-fallback", Fspecifier_fallback, 1, 1, 0, /*
|
|
0
|
2393 Return the fallback value for SPECIFIER.
|
|
|
2394 Fallback values are provided by the C code for certain built-in
|
|
|
2395 specifiers to make sure that instancing won't fail even if all
|
|
|
2396 specs are removed from the specifier, or to implement simple
|
|
|
2397 inheritance behavior (e.g. this method is used to ensure that
|
|
|
2398 faces other than 'default inherit their attributes from 'default).
|
|
|
2399 By design, you cannot change the fallback value, and specifiers
|
|
|
2400 created with `make-specifier' will never have a fallback (although
|
|
|
2401 a similar, Lisp-accessible capability may be provided in the future
|
|
|
2402 to allow for inheritance).
|
|
|
2403
|
|
|
2404 The fallback value will be an inst-list that is instanced like
|
|
|
2405 any other inst-list, a specifier of the same type as SPECIFIER
|
|
|
2406 \(results in inheritance), or nil for no fallback.
|
|
|
2407
|
|
|
2408 When you instance a specifier, you can explicitly request that the
|
|
|
2409 fallback not be consulted. (The C code does this, for example, when
|
|
|
2410 merging faces.) See `specifier-instance'.
|
|
20
|
2411 */
|
|
|
2412 (specifier))
|
|
0
|
2413 {
|
|
|
2414 CHECK_SPECIFIER (specifier);
|
|
|
2415 return Fcopy_tree (XSPECIFIER (specifier)->fallback, Qt);
|
|
|
2416 }
|
|
|
2417
|
|
|
2418 static Lisp_Object
|
|
|
2419 specifier_instance_from_inst_list (Lisp_Object specifier,
|
|
|
2420 Lisp_Object matchspec,
|
|
|
2421 Lisp_Object domain,
|
|
|
2422 Lisp_Object inst_list,
|
|
|
2423 Error_behavior errb, int no_quit,
|
|
|
2424 Lisp_Object depth)
|
|
|
2425 {
|
|
|
2426 /* This function can GC */
|
|
398
|
2427 Lisp_Specifier *sp;
|
|
0
|
2428 Lisp_Object device;
|
|
|
2429 Lisp_Object rest;
|
|
|
2430 int count = specpdl_depth ();
|
|
|
2431 struct gcpro gcpro1, gcpro2;
|
|
|
2432
|
|
|
2433 GCPRO2 (specifier, inst_list);
|
|
|
2434
|
|
|
2435 sp = XSPECIFIER (specifier);
|
|
|
2436 device = DFW_DEVICE (domain);
|
|
|
2437
|
|
|
2438 if (no_quit)
|
|
|
2439 /* The instantiate method is allowed to call eval. Since it
|
|
|
2440 is quite common for this function to get called from somewhere in
|
|
|
2441 redisplay we need to make sure that quits are ignored. Otherwise
|
|
|
2442 Fsignal will abort. */
|
|
|
2443 specbind (Qinhibit_quit, Qt);
|
|
|
2444
|
|
|
2445 LIST_LOOP (rest, inst_list)
|
|
|
2446 {
|
|
|
2447 Lisp_Object tagged_inst = XCAR (rest);
|
|
|
2448 Lisp_Object tag_set = XCAR (tagged_inst);
|
|
|
2449
|
|
|
2450 if (device_matches_specifier_tag_set_p (device, tag_set))
|
|
|
2451 {
|
|
|
2452 Lisp_Object val = XCDR (tagged_inst);
|
|
|
2453
|
|
|
2454 if (HAS_SPECMETH_P (sp, instantiate))
|
|
74
|
2455 val = call_with_suspended_errors
|
|
82
|
2456 ((lisp_fn_t) RAW_SPECMETH (sp, instantiate),
|
|
|
2457 Qunbound, Qspecifier, errb, 5, specifier,
|
|
272
|
2458 matchspec, domain, val, depth);
|
|
0
|
2459
|
|
|
2460 if (!UNBOUNDP (val))
|
|
|
2461 {
|
|
|
2462 unbind_to (count, Qnil);
|
|
|
2463 UNGCPRO;
|
|
|
2464 return val;
|
|
|
2465 }
|
|
|
2466 }
|
|
|
2467 }
|
|
|
2468
|
|
|
2469 unbind_to (count, Qnil);
|
|
|
2470 UNGCPRO;
|
|
|
2471 return Qunbound;
|
|
|
2472 }
|
|
|
2473
|
|
|
2474 /* Given a SPECIFIER and a DOMAIN, return a specific instance for that
|
|
|
2475 specifier. Try to find one by checking the specifier types from most
|
|
|
2476 specific (buffer) to most general (global). If we find an instance,
|
|
|
2477 return it. Otherwise return Qunbound. */
|
|
|
2478
|
|
380
|
2479 #define CHECK_INSTANCE_ENTRY(key, matchspec, type) do { \
|
|
|
2480 Lisp_Object *CIE_inst_list = \
|
|
0
|
2481 specifier_get_inst_list (specifier, key, type); \
|
|
380
|
2482 if (CIE_inst_list) \
|
|
0
|
2483 { \
|
|
380
|
2484 Lisp_Object CIE_val = \
|
|
0
|
2485 specifier_instance_from_inst_list (specifier, matchspec, \
|
|
380
|
2486 domain, *CIE_inst_list, \
|
|
0
|
2487 errb, no_quit, depth); \
|
|
380
|
2488 if (!UNBOUNDP (CIE_val)) \
|
|
|
2489 return CIE_val; \
|
|
0
|
2490 } \
|
|
|
2491 } while (0)
|
|
|
2492
|
|
|
2493 /* We accept any window, frame or device domain and do our checking
|
|
|
2494 starting from as specific a locale type as we can determine from the
|
|
|
2495 domain we are passed and going on up through as many other locale types
|
|
|
2496 as we can determine. In practice, when called from redisplay the
|
|
|
2497 arg will usually be a window and occasionally a frame. If
|
|
|
2498 triggered by a user call, who knows what it will usually be. */
|
|
|
2499 Lisp_Object
|
|
|
2500 specifier_instance (Lisp_Object specifier, Lisp_Object matchspec,
|
|
|
2501 Lisp_Object domain, Error_behavior errb, int no_quit,
|
|
|
2502 int no_fallback, Lisp_Object depth)
|
|
|
2503 {
|
|
|
2504 Lisp_Object buffer = Qnil;
|
|
|
2505 Lisp_Object window = Qnil;
|
|
|
2506 Lisp_Object frame = Qnil;
|
|
|
2507 Lisp_Object device = Qnil;
|
|
|
2508 Lisp_Object tag = Qnil;
|
|
|
2509 struct device *d;
|
|
398
|
2510 Lisp_Specifier *sp;
|
|
0
|
2511
|
|
|
2512 sp = XSPECIFIER (specifier);
|
|
|
2513
|
|
|
2514 /* Attempt to determine buffer, window, frame, and device from the
|
|
|
2515 domain. */
|
|
|
2516 if (WINDOWP (domain))
|
|
|
2517 window = domain;
|
|
|
2518 else if (FRAMEP (domain))
|
|
|
2519 frame = domain;
|
|
|
2520 else if (DEVICEP (domain))
|
|
|
2521 device = domain;
|
|
|
2522 else
|
|
120
|
2523 /* #### dmoore - dammit, this should just signal an error or something
|
|
280
|
2524 shouldn't it?
|
|
|
2525 #### No. Errors are handled in Lisp primitives implementation.
|
|
|
2526 Invalid domain is a design error here - kkm. */
|
|
0
|
2527 abort ();
|
|
|
2528
|
|
|
2529 if (NILP (buffer) && !NILP (window))
|
|
|
2530 buffer = XWINDOW (window)->buffer;
|
|
|
2531 if (NILP (frame) && !NILP (window))
|
|
|
2532 frame = XWINDOW (window)->frame;
|
|
|
2533 if (NILP (device))
|
|
|
2534 /* frame had better exist; if device is undeterminable, something
|
|
|
2535 really went wrong. */
|
|
|
2536 device = XFRAME (frame)->device;
|
|
|
2537
|
|
|
2538 /* device had better be determined by now; abort if not. */
|
|
|
2539 d = XDEVICE (device);
|
|
|
2540 tag = DEVICE_CLASS (d);
|
|
|
2541
|
|
|
2542 depth = make_int (1 + XINT (depth));
|
|
|
2543 if (XINT (depth) > 20)
|
|
|
2544 {
|
|
|
2545 maybe_error (Qspecifier, errb, "Apparent loop in specifier inheritance");
|
|
|
2546 /* The specification is fucked; at least try the fallback
|
|
|
2547 (which better not be fucked, because it's not changeable
|
|
|
2548 from Lisp). */
|
|
|
2549 depth = Qzero;
|
|
|
2550 goto do_fallback;
|
|
|
2551 }
|
|
|
2552
|
|
398
|
2553 retry:
|
|
284
|
2554 /* First see if we can generate one from the window specifiers. */
|
|
|
2555 if (!NILP (window))
|
|
|
2556 CHECK_INSTANCE_ENTRY (window, matchspec, LOCALE_WINDOW);
|
|
|
2557
|
|
|
2558 /* Next see if we can generate one from the buffer specifiers. */
|
|
0
|
2559 if (!NILP (buffer))
|
|
|
2560 CHECK_INSTANCE_ENTRY (buffer, matchspec, LOCALE_BUFFER);
|
|
|
2561
|
|
|
2562 /* Next see if we can generate one from the frame specifiers. */
|
|
|
2563 if (!NILP (frame))
|
|
|
2564 CHECK_INSTANCE_ENTRY (frame, matchspec, LOCALE_FRAME);
|
|
|
2565
|
|
|
2566 /* If we still haven't succeeded try with the device specifiers. */
|
|
|
2567 CHECK_INSTANCE_ENTRY (device, matchspec, LOCALE_DEVICE);
|
|
|
2568
|
|
|
2569 /* Last and least try the global specifiers. */
|
|
|
2570 CHECK_INSTANCE_ENTRY (Qglobal, matchspec, LOCALE_GLOBAL);
|
|
|
2571
|
|
398
|
2572 do_fallback:
|
|
0
|
2573 /* We're out of specifiers and we still haven't generated an
|
|
|
2574 instance. At least try the fallback ... If this fails,
|
|
|
2575 then we just return Qunbound. */
|
|
|
2576
|
|
|
2577 if (no_fallback || NILP (sp->fallback))
|
|
|
2578 /* I said, I don't want the fallbacks. */
|
|
|
2579 return Qunbound;
|
|
|
2580
|
|
|
2581 if (SPECIFIERP (sp->fallback))
|
|
|
2582 {
|
|
|
2583 /* If you introduced loops in the default specifier chain,
|
|
|
2584 then you're fucked, so you better not do this. */
|
|
|
2585 specifier = sp->fallback;
|
|
|
2586 sp = XSPECIFIER (specifier);
|
|
380
|
2587 goto retry;
|
|
0
|
2588 }
|
|
|
2589
|
|
|
2590 assert (CONSP (sp->fallback));
|
|
|
2591 return specifier_instance_from_inst_list (specifier, matchspec, domain,
|
|
|
2592 sp->fallback, errb, no_quit,
|
|
|
2593 depth);
|
|
|
2594 }
|
|
|
2595 #undef CHECK_INSTANCE_ENTRY
|
|
|
2596
|
|
|
2597 Lisp_Object
|
|
|
2598 specifier_instance_no_quit (Lisp_Object specifier, Lisp_Object matchspec,
|
|
|
2599 Lisp_Object domain, Error_behavior errb,
|
|
|
2600 int no_fallback, Lisp_Object depth)
|
|
|
2601 {
|
|
|
2602 return specifier_instance (specifier, matchspec, domain, errb,
|
|
|
2603 1, no_fallback, depth);
|
|
|
2604 }
|
|
|
2605
|
|
20
|
2606 DEFUN ("specifier-instance", Fspecifier_instance, 1, 4, 0, /*
|
|
0
|
2607 Instantiate SPECIFIER (return its value) in DOMAIN.
|
|
|
2608 If no instance can be generated for this domain, return DEFAULT.
|
|
|
2609
|
|
|
2610 DOMAIN should be a window, frame, or device. Other values that are legal
|
|
|
2611 as a locale (e.g. a buffer) are not valid as a domain because they do not
|
|
|
2612 provide enough information to identify a particular device (see
|
|
|
2613 `valid-specifier-domain-p'). DOMAIN defaults to the selected window
|
|
|
2614 if omitted.
|
|
|
2615
|
|
185
|
2616 "Instantiating" a specifier in a particular domain means determining
|
|
|
2617 the specifier's "value" in that domain. This is accomplished by
|
|
0
|
2618 searching through the specifications in the specifier that correspond
|
|
|
2619 to all locales that can be derived from the given domain, from specific
|
|
|
2620 to general. In most cases, the domain is an Emacs window. In that case
|
|
|
2621 specifications are searched for as follows:
|
|
|
2622
|
|
284
|
2623 1. A specification whose locale is the window itself;
|
|
|
2624 2. A specification whose locale is the window's buffer;
|
|
0
|
2625 3. A specification whose locale is the window's frame;
|
|
|
2626 4. A specification whose locale is the window's frame's device;
|
|
|
2627 5. A specification whose locale is 'global.
|
|
|
2628
|
|
|
2629 If all of those fail, then the C-code-provided fallback value for
|
|
|
2630 this specifier is consulted (see `specifier-fallback'). If it is
|
|
|
2631 an inst-list, then this function attempts to instantiate that list
|
|
|
2632 just as when a specification is located in the first five steps above.
|
|
|
2633 If the fallback is a specifier, `specifier-instance' is called
|
|
|
2634 recursively on this specifier and the return value used. Note,
|
|
|
2635 however, that if the optional argument NO-FALLBACK is non-nil,
|
|
|
2636 the fallback value will not be consulted.
|
|
|
2637
|
|
|
2638 Note that there may be more than one specification matching a particular
|
|
|
2639 locale; all such specifications are considered before looking for any
|
|
|
2640 specifications for more general locales. Any particular specification
|
|
|
2641 that is found may be rejected because its tag set does not match the
|
|
|
2642 device being instantiated over, or because the specification is not
|
|
|
2643 valid for the device of the given domain (e.g. the font or color name
|
|
|
2644 does not exist for this particular X server).
|
|
|
2645
|
|
|
2646 The returned value is dependent on the type of specifier. For example,
|
|
|
2647 for a font specifier (as returned by the `face-font' function), the returned
|
|
|
2648 value will be a font-instance object. For glyphs, the returned value
|
|
|
2649 will be a string, pixmap, or subwindow.
|
|
|
2650
|
|
|
2651 See also `specifier-matching-instance'.
|
|
20
|
2652 */
|
|
173
|
2653 (specifier, domain, default_, no_fallback))
|
|
0
|
2654 {
|
|
|
2655 Lisp_Object instance;
|
|
|
2656
|
|
|
2657 CHECK_SPECIFIER (specifier);
|
|
|
2658 domain = decode_domain (domain);
|
|
|
2659
|
|
280
|
2660 instance = specifier_instance (specifier, Qunbound, domain, ERROR_ME, 0,
|
|
0
|
2661 !NILP (no_fallback), Qzero);
|
|
173
|
2662 return UNBOUNDP (instance) ? default_ : instance;
|
|
0
|
2663 }
|
|
|
2664
|
|
20
|
2665 DEFUN ("specifier-matching-instance", Fspecifier_matching_instance, 2, 5, 0, /*
|
|
0
|
2666 Return an instance for SPECIFIER in DOMAIN that matches MATCHSPEC.
|
|
|
2667 If no instance can be generated for this domain, return DEFAULT.
|
|
|
2668
|
|
|
2669 This function is identical to `specifier-instance' except that a
|
|
|
2670 specification will only be considered if it matches MATCHSPEC.
|
|
185
|
2671 The definition of "match", and allowed values for MATCHSPEC, are
|
|
0
|
2672 dependent on the particular type of specifier. Here are some examples:
|
|
|
2673
|
|
|
2674 -- For chartable (e.g. display table) specifiers, MATCHSPEC should be a
|
|
|
2675 character, and the specification (a chartable) must give a value for
|
|
|
2676 that character in order to be considered. This allows you to specify,
|
|
|
2677 e.g., a buffer-local display table that only gives values for particular
|
|
|
2678 characters. All other characters are handled as if the buffer-local
|
|
|
2679 display table is not there. (Chartable specifiers are not yet
|
|
|
2680 implemented.)
|
|
|
2681
|
|
|
2682 -- For font specifiers, MATCHSPEC should be a charset, and the specification
|
|
|
2683 (a font string) must have a registry that matches the charset's registry.
|
|
|
2684 (This only makes sense with Mule support.) This makes it easy to choose a
|
|
|
2685 font that can display a particular character. (This is what redisplay
|
|
|
2686 does, in fact.)
|
|
20
|
2687 */
|
|
173
|
2688 (specifier, matchspec, domain, default_, no_fallback))
|
|
0
|
2689 {
|
|
|
2690 Lisp_Object instance;
|
|
|
2691
|
|
|
2692 CHECK_SPECIFIER (specifier);
|
|
|
2693 check_valid_specifier_matchspec (matchspec, XSPECIFIER (specifier)->methods,
|
|
|
2694 ERROR_ME);
|
|
|
2695 domain = decode_domain (domain);
|
|
|
2696
|
|
280
|
2697 instance = specifier_instance (specifier, matchspec, domain, ERROR_ME,
|
|
276
|
2698 0, !NILP (no_fallback), Qzero);
|
|
173
|
2699 return UNBOUNDP (instance) ? default_ : instance;
|
|
0
|
2700 }
|
|
|
2701
|
|
280
|
2702 DEFUN ("specifier-instance-from-inst-list", Fspecifier_instance_from_inst_list,
|
|
|
2703 3, 4, 0, /*
|
|
0
|
2704 Attempt to convert a particular inst-list into an instance.
|
|
|
2705 This attempts to instantiate INST-LIST in the given DOMAIN,
|
|
|
2706 as if INST-LIST existed in a specification in SPECIFIER. If
|
|
|
2707 the instantiation fails, DEFAULT is returned. In most circumstances,
|
|
|
2708 you should not use this function; use `specifier-instance' instead.
|
|
20
|
2709 */
|
|
173
|
2710 (specifier, domain, inst_list, default_))
|
|
0
|
2711 {
|
|
|
2712 Lisp_Object val = Qunbound;
|
|
398
|
2713 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
0
|
2714 struct gcpro gcpro1;
|
|
|
2715 Lisp_Object built_up_list = Qnil;
|
|
|
2716
|
|
|
2717 CHECK_SPECIFIER (specifier);
|
|
|
2718 check_valid_domain (domain);
|
|
|
2719 check_valid_inst_list (inst_list, sp->methods, ERROR_ME);
|
|
|
2720 GCPRO1 (built_up_list);
|
|
280
|
2721 built_up_list = build_up_processed_list (specifier, domain, inst_list);
|
|
0
|
2722 if (!NILP (built_up_list))
|
|
280
|
2723 val = specifier_instance_from_inst_list (specifier, Qunbound, domain,
|
|
|
2724 built_up_list, ERROR_ME,
|
|
|
2725 0, Qzero);
|
|
0
|
2726 UNGCPRO;
|
|
173
|
2727 return UNBOUNDP (val) ? default_ : val;
|
|
0
|
2728 }
|
|
|
2729
|
|
280
|
2730 DEFUN ("specifier-matching-instance-from-inst-list", Fspecifier_matching_instance_from_inst_list,
|
|
|
2731 4, 5, 0, /*
|
|
0
|
2732 Attempt to convert a particular inst-list into an instance.
|
|
|
2733 This attempts to instantiate INST-LIST in the given DOMAIN
|
|
272
|
2734 \(as if INST-LIST existed in a specification in SPECIFIER),
|
|
0
|
2735 matching the specifications against MATCHSPEC.
|
|
|
2736
|
|
|
2737 This function is analogous to `specifier-instance-from-inst-list'
|
|
|
2738 but allows for specification-matching as in `specifier-matching-instance'.
|
|
|
2739 See that function for a description of exactly how the matching process
|
|
|
2740 works.
|
|
20
|
2741 */
|
|
173
|
2742 (specifier, matchspec, domain, inst_list, default_))
|
|
0
|
2743 {
|
|
|
2744 Lisp_Object val = Qunbound;
|
|
398
|
2745 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
0
|
2746 struct gcpro gcpro1;
|
|
|
2747 Lisp_Object built_up_list = Qnil;
|
|
|
2748
|
|
|
2749 CHECK_SPECIFIER (specifier);
|
|
|
2750 check_valid_specifier_matchspec (matchspec, XSPECIFIER (specifier)->methods,
|
|
|
2751 ERROR_ME);
|
|
|
2752 check_valid_domain (domain);
|
|
|
2753 check_valid_inst_list (inst_list, sp->methods, ERROR_ME);
|
|
|
2754 GCPRO1 (built_up_list);
|
|
280
|
2755 built_up_list = build_up_processed_list (specifier, domain, inst_list);
|
|
0
|
2756 if (!NILP (built_up_list))
|
|
280
|
2757 val = specifier_instance_from_inst_list (specifier, matchspec, domain,
|
|
|
2758 built_up_list, ERROR_ME,
|
|
|
2759 0, Qzero);
|
|
0
|
2760 UNGCPRO;
|
|
173
|
2761 return UNBOUNDP (val) ? default_ : val;
|
|
0
|
2762 }
|
|
|
2763
|
|
|
2764
|
|
|
2765 /************************************************************************/
|
|
|
2766 /* Caching in the struct window or frame */
|
|
|
2767 /************************************************************************/
|
|
|
2768
|
|
|
2769 /* Either STRUCT_WINDOW_OFFSET or STRUCT_FRAME_OFFSET can be 0 to indicate
|
|
|
2770 no caching in that sort of object. */
|
|
|
2771
|
|
|
2772 /* #### It would be nice if the specifier caching automatically knew
|
|
|
2773 about specifier fallbacks, so we didn't have to do it ourselves. */
|
|
|
2774
|
|
|
2775 void
|
|
|
2776 set_specifier_caching (Lisp_Object specifier, int struct_window_offset,
|
|
|
2777 void (*value_changed_in_window)
|
|
|
2778 (Lisp_Object specifier, struct window *w,
|
|
|
2779 Lisp_Object oldval),
|
|
|
2780 int struct_frame_offset,
|
|
|
2781 void (*value_changed_in_frame)
|
|
|
2782 (Lisp_Object specifier, struct frame *f,
|
|
|
2783 Lisp_Object oldval))
|
|
|
2784 {
|
|
398
|
2785 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
276
|
2786 assert (!GHOST_SPECIFIER_P (sp));
|
|
0
|
2787
|
|
|
2788 if (!sp->caching)
|
|
185
|
2789 sp->caching = xnew_and_zero (struct specifier_caching);
|
|
0
|
2790 sp->caching->offset_into_struct_window = struct_window_offset;
|
|
|
2791 sp->caching->value_changed_in_window = value_changed_in_window;
|
|
|
2792 sp->caching->offset_into_struct_frame = struct_frame_offset;
|
|
|
2793 sp->caching->value_changed_in_frame = value_changed_in_frame;
|
|
|
2794 Vcached_specifiers = Fcons (specifier, Vcached_specifiers);
|
|
276
|
2795 if (BODILY_SPECIFIER_P (sp))
|
|
|
2796 GHOST_SPECIFIER(sp)->caching = sp->caching;
|
|
0
|
2797 recompute_cached_specifier_everywhere (specifier);
|
|
|
2798 }
|
|
|
2799
|
|
|
2800 static void
|
|
|
2801 recompute_one_cached_specifier_in_window (Lisp_Object specifier,
|
|
|
2802 struct window *w)
|
|
|
2803 {
|
|
272
|
2804 Lisp_Object window;
|
|
0
|
2805 Lisp_Object newval, *location;
|
|
|
2806
|
|
276
|
2807 assert (!GHOST_SPECIFIER_P (XSPECIFIER (specifier)));
|
|
|
2808
|
|
0
|
2809 XSETWINDOW (window, w);
|
|
|
2810
|
|
|
2811 newval = specifier_instance (specifier, Qunbound, window, ERROR_ME_WARN,
|
|
|
2812 0, 0, Qzero);
|
|
|
2813 /* If newval ended up Qunbound, then the calling functions
|
|
|
2814 better be able to deal. If not, set a default so this
|
|
|
2815 never happens or correct it in the value_changed_in_window
|
|
|
2816 method. */
|
|
|
2817 location = (Lisp_Object *)
|
|
|
2818 ((char *) w + XSPECIFIER (specifier)->caching->offset_into_struct_window);
|
|
|
2819 if (!EQ (newval, *location))
|
|
|
2820 {
|
|
|
2821 Lisp_Object oldval = *location;
|
|
|
2822 *location = newval;
|
|
|
2823 (XSPECIFIER (specifier)->caching->value_changed_in_window)
|
|
|
2824 (specifier, w, oldval);
|
|
|
2825 }
|
|
|
2826 }
|
|
|
2827
|
|
|
2828 static void
|
|
|
2829 recompute_one_cached_specifier_in_frame (Lisp_Object specifier,
|
|
|
2830 struct frame *f)
|
|
|
2831 {
|
|
272
|
2832 Lisp_Object frame;
|
|
0
|
2833 Lisp_Object newval, *location;
|
|
|
2834
|
|
276
|
2835 assert (!GHOST_SPECIFIER_P (XSPECIFIER (specifier)));
|
|
|
2836
|
|
0
|
2837 XSETFRAME (frame, f);
|
|
|
2838
|
|
|
2839 newval = specifier_instance (specifier, Qunbound, frame, ERROR_ME_WARN,
|
|
|
2840 0, 0, Qzero);
|
|
|
2841 /* If newval ended up Qunbound, then the calling functions
|
|
|
2842 better be able to deal. If not, set a default so this
|
|
|
2843 never happens or correct it in the value_changed_in_frame
|
|
|
2844 method. */
|
|
|
2845 location = (Lisp_Object *)
|
|
|
2846 ((char *) f + XSPECIFIER (specifier)->caching->offset_into_struct_frame);
|
|
|
2847 if (!EQ (newval, *location))
|
|
|
2848 {
|
|
|
2849 Lisp_Object oldval = *location;
|
|
|
2850 *location = newval;
|
|
|
2851 (XSPECIFIER (specifier)->caching->value_changed_in_frame)
|
|
|
2852 (specifier, f, oldval);
|
|
|
2853 }
|
|
|
2854 }
|
|
|
2855
|
|
|
2856 void
|
|
|
2857 recompute_all_cached_specifiers_in_window (struct window *w)
|
|
|
2858 {
|
|
|
2859 Lisp_Object rest;
|
|
|
2860
|
|
|
2861 LIST_LOOP (rest, Vcached_specifiers)
|
|
|
2862 {
|
|
|
2863 Lisp_Object specifier = XCAR (rest);
|
|
|
2864 if (XSPECIFIER (specifier)->caching->offset_into_struct_window)
|
|
|
2865 recompute_one_cached_specifier_in_window (specifier, w);
|
|
|
2866 }
|
|
|
2867 }
|
|
|
2868
|
|
|
2869 void
|
|
|
2870 recompute_all_cached_specifiers_in_frame (struct frame *f)
|
|
|
2871 {
|
|
|
2872 Lisp_Object rest;
|
|
|
2873
|
|
|
2874 LIST_LOOP (rest, Vcached_specifiers)
|
|
|
2875 {
|
|
|
2876 Lisp_Object specifier = XCAR (rest);
|
|
|
2877 if (XSPECIFIER (specifier)->caching->offset_into_struct_frame)
|
|
|
2878 recompute_one_cached_specifier_in_frame (specifier, f);
|
|
|
2879 }
|
|
|
2880 }
|
|
|
2881
|
|
|
2882 static int
|
|
|
2883 recompute_cached_specifier_everywhere_mapfun (struct window *w,
|
|
|
2884 void *closure)
|
|
|
2885 {
|
|
|
2886 Lisp_Object specifier = Qnil;
|
|
|
2887
|
|
|
2888 VOID_TO_LISP (specifier, closure);
|
|
|
2889 recompute_one_cached_specifier_in_window (specifier, w);
|
|
|
2890 return 0;
|
|
|
2891 }
|
|
|
2892
|
|
|
2893 static void
|
|
|
2894 recompute_cached_specifier_everywhere (Lisp_Object specifier)
|
|
|
2895 {
|
|
|
2896 Lisp_Object frmcons, devcons, concons;
|
|
|
2897
|
|
276
|
2898 specifier = bodily_specifier (specifier);
|
|
|
2899
|
|
0
|
2900 if (!XSPECIFIER (specifier)->caching)
|
|
|
2901 return;
|
|
|
2902
|
|
|
2903 if (XSPECIFIER (specifier)->caching->offset_into_struct_window)
|
|
|
2904 {
|
|
|
2905 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
2906 map_windows (XFRAME (XCAR (frmcons)),
|
|
|
2907 recompute_cached_specifier_everywhere_mapfun,
|
|
|
2908 LISP_TO_VOID (specifier));
|
|
|
2909 }
|
|
|
2910
|
|
|
2911 if (XSPECIFIER (specifier)->caching->offset_into_struct_frame)
|
|
|
2912 {
|
|
|
2913 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
2914 recompute_one_cached_specifier_in_frame (specifier,
|
|
|
2915 XFRAME (XCAR (frmcons)));
|
|
|
2916 }
|
|
|
2917 }
|
|
|
2918
|
|
20
|
2919 DEFUN ("set-specifier-dirty-flag", Fset_specifier_dirty_flag, 1, 1, 0, /*
|
|
0
|
2920 Force recomputation of any caches associated with SPECIFIER.
|
|
|
2921 Note that this automatically happens whenever you change a specification
|
|
|
2922 in SPECIFIER; you do not have to call this function then.
|
|
|
2923 One example of where this function is useful is when you have a
|
|
|
2924 toolbar button whose `active-p' field is an expression to be
|
|
|
2925 evaluated. Calling `set-specifier-dirty-flag' on the
|
|
|
2926 toolbar specifier will force the `active-p' fields to be
|
|
|
2927 recomputed.
|
|
20
|
2928 */
|
|
|
2929 (specifier))
|
|
0
|
2930 {
|
|
|
2931 CHECK_SPECIFIER (specifier);
|
|
|
2932 recompute_cached_specifier_everywhere (specifier);
|
|
|
2933 return Qnil;
|
|
|
2934 }
|
|
|
2935
|
|
|
2936
|
|
|
2937 /************************************************************************/
|
|
|
2938 /* Generic specifier type */
|
|
|
2939 /************************************************************************/
|
|
|
2940
|
|
|
2941 DEFINE_SPECIFIER_TYPE (generic);
|
|
|
2942
|
|
|
2943 #if 0
|
|
|
2944
|
|
|
2945 /* This is the string that used to be in `generic-specifier-p'.
|
|
|
2946 The idea is good, but it doesn't quite work in the form it's
|
|
|
2947 in. (One major problem is that validating an instantiator
|
|
|
2948 is supposed to require only that the specifier type is passed,
|
|
|
2949 while with this approach the actual specifier is needed.)
|
|
|
2950
|
|
|
2951 What really needs to be done is to write a function
|
|
|
2952 `make-specifier-type' that creates new specifier types.
|
|
70
|
2953 #### I'll look into this for 19.14.
|
|
0
|
2954 */
|
|
|
2955
|
|
|
2956 "A generic specifier is a generalized kind of specifier with user-defined\n"
|
|
|
2957 "semantics. The instantiator can be any kind of Lisp object, and the\n"
|
|
|
2958 "instance computed from it is likewise any kind of Lisp object. The\n"
|
|
|
2959 "SPECIFIER-DATA should be an alist of methods governing how the specifier\n"
|
|
|
2960 "works. All methods are optional, and reasonable default methods will be\n"
|
|
|
2961 "provided. Currently there are two defined methods: 'instantiate and\n"
|
|
|
2962 "'validate.\n"
|
|
|
2963 "\n"
|
|
|
2964 "'instantiate specifies how to do the instantiation; if omitted, the\n"
|
|
|
2965 "instantiator itself is simply returned as the instance. The method\n"
|
|
|
2966 "should be a function that accepts three parameters (a specifier, the\n"
|
|
|
2967 "instantiator that matched the domain being instantiated over, and that\n"
|
|
|
2968 "domain), and should return a one-element list containing the instance,\n"
|
|
|
2969 "or nil if no instance exists. Note that the domain passed to this function\n"
|
|
|
2970 "is the domain being instantiated over, which may not be the same as the\n"
|
|
|
2971 "locale contained in the specification corresponding to the instantiator\n"
|
|
|
2972 "(for example, the domain being instantiated over could be a window, but\n"
|
|
|
2973 "the locale corresponding to the passed instantiator could be the window's\n"
|
|
|
2974 "buffer or frame).\n"
|
|
|
2975 "\n"
|
|
|
2976 "'validate specifies whether a given instantiator is valid; if omitted,\n"
|
|
|
2977 "all instantiators are considered valid. It should be a function of\n"
|
|
|
2978 "two arguments: an instantiator and a flag CAN-SIGNAL-ERROR. If this\n"
|
|
|
2979 "flag is false, the function must simply return t or nil indicating\n"
|
|
|
2980 "whether the instantiator is valid. If this flag is true, the function\n"
|
|
|
2981 "is free to signal an error if it encounters an invalid instantiator\n"
|
|
|
2982 "(this can be useful for issuing a specific error about exactly why the\n"
|
|
|
2983 "instantiator is valid). It can also return nil to indicate an invalid\n"
|
|
|
2984 "instantiator; in this case, a general error will be signalled."
|
|
|
2985
|
|
|
2986 #endif /* 0 */
|
|
|
2987
|
|
20
|
2988 DEFUN ("generic-specifier-p", Fgeneric_specifier_p, 1, 1, 0, /*
|
|
0
|
2989 Return non-nil if OBJECT is a generic specifier.
|
|
|
2990
|
|
|
2991 A generic specifier allows any kind of Lisp object as an instantiator,
|
|
|
2992 and returns back the Lisp object unchanged when it is instantiated.
|
|
20
|
2993 */
|
|
|
2994 (object))
|
|
0
|
2995 {
|
|
173
|
2996 return GENERIC_SPECIFIERP (object) ? Qt : Qnil;
|
|
0
|
2997 }
|
|
|
2998
|
|
|
2999
|
|
|
3000 /************************************************************************/
|
|
|
3001 /* Integer specifier type */
|
|
|
3002 /************************************************************************/
|
|
|
3003
|
|
|
3004 DEFINE_SPECIFIER_TYPE (integer);
|
|
|
3005
|
|
|
3006 static void
|
|
|
3007 integer_validate (Lisp_Object instantiator)
|
|
|
3008 {
|
|
|
3009 CHECK_INT (instantiator);
|
|
|
3010 }
|
|
|
3011
|
|
20
|
3012 DEFUN ("integer-specifier-p", Finteger_specifier_p, 1, 1, 0, /*
|
|
0
|
3013 Return non-nil if OBJECT is an integer specifier.
|
|
20
|
3014 */
|
|
|
3015 (object))
|
|
0
|
3016 {
|
|
173
|
3017 return INTEGER_SPECIFIERP (object) ? Qt : Qnil;
|
|
0
|
3018 }
|
|
|
3019
|
|
|
3020 /************************************************************************/
|
|
|
3021 /* Non-negative-integer specifier type */
|
|
|
3022 /************************************************************************/
|
|
|
3023
|
|
|
3024 DEFINE_SPECIFIER_TYPE (natnum);
|
|
|
3025
|
|
|
3026 static void
|
|
|
3027 natnum_validate (Lisp_Object instantiator)
|
|
|
3028 {
|
|
|
3029 CHECK_NATNUM (instantiator);
|
|
|
3030 }
|
|
|
3031
|
|
20
|
3032 DEFUN ("natnum-specifier-p", Fnatnum_specifier_p, 1, 1, 0, /*
|
|
0
|
3033 Return non-nil if OBJECT is a natnum (non-negative-integer) specifier.
|
|
20
|
3034 */
|
|
|
3035 (object))
|
|
0
|
3036 {
|
|
173
|
3037 return NATNUM_SPECIFIERP (object) ? Qt : Qnil;
|
|
0
|
3038 }
|
|
|
3039
|
|
|
3040 /************************************************************************/
|
|
|
3041 /* Boolean specifier type */
|
|
|
3042 /************************************************************************/
|
|
|
3043
|
|
|
3044 DEFINE_SPECIFIER_TYPE (boolean);
|
|
|
3045
|
|
|
3046 static void
|
|
|
3047 boolean_validate (Lisp_Object instantiator)
|
|
|
3048 {
|
|
|
3049 if (!EQ (instantiator, Qt) && !EQ (instantiator, Qnil))
|
|
|
3050 signal_simple_error ("Must be t or nil", instantiator);
|
|
|
3051 }
|
|
|
3052
|
|
20
|
3053 DEFUN ("boolean-specifier-p", Fboolean_specifier_p, 1, 1, 0, /*
|
|
155
|
3054 Return non-nil if OBJECT is a boolean specifier.
|
|
20
|
3055 */
|
|
|
3056 (object))
|
|
0
|
3057 {
|
|
173
|
3058 return BOOLEAN_SPECIFIERP (object) ? Qt : Qnil;
|
|
0
|
3059 }
|
|
|
3060
|
|
116
|
3061 /************************************************************************/
|
|
|
3062 /* Display table specifier type */
|
|
|
3063 /************************************************************************/
|
|
|
3064
|
|
|
3065 DEFINE_SPECIFIER_TYPE (display_table);
|
|
|
3066
|
|
384
|
3067 #define VALID_SINGLE_DISPTABLE_INSTANTIATOR_P(instantiator) \
|
|
|
3068 (VECTORP (instantiator) \
|
|
|
3069 || (CHAR_TABLEP (instantiator) \
|
|
|
3070 && (XCHAR_TABLE_TYPE (instantiator) == CHAR_TABLE_TYPE_CHAR \
|
|
|
3071 || XCHAR_TABLE_TYPE (instantiator) == CHAR_TABLE_TYPE_GENERIC)) \
|
|
|
3072 || RANGE_TABLEP (instantiator))
|
|
|
3073
|
|
169
|
3074 static void
|
|
|
3075 display_table_validate (Lisp_Object instantiator)
|
|
116
|
3076 {
|
|
384
|
3077 if (NILP (instantiator))
|
|
|
3078 /* OK */
|
|
|
3079 ;
|
|
|
3080 else if (CONSP (instantiator))
|
|
|
3081 {
|
|
|
3082 Lisp_Object tail;
|
|
|
3083 EXTERNAL_LIST_LOOP (tail, instantiator)
|
|
|
3084 {
|
|
|
3085 Lisp_Object car = XCAR (tail);
|
|
|
3086 if (!VALID_SINGLE_DISPTABLE_INSTANTIATOR_P (car))
|
|
|
3087 goto lose;
|
|
|
3088 }
|
|
|
3089 }
|
|
|
3090 else
|
|
|
3091 {
|
|
|
3092 if (!VALID_SINGLE_DISPTABLE_INSTANTIATOR_P (instantiator))
|
|
|
3093 {
|
|
|
3094 lose:
|
|
|
3095 dead_wrong_type_argument (display_table_specifier_methods->predicate_symbol,
|
|
|
3096 instantiator);
|
|
|
3097 }
|
|
|
3098 }
|
|
116
|
3099 }
|
|
169
|
3100
|
|
116
|
3101 DEFUN ("display-table-specifier-p", Fdisplay_table_specifier_p, 1, 1, 0, /*
|
|
175
|
3102 Return non-nil if OBJECT is a display-table specifier.
|
|
116
|
3103 */
|
|
|
3104 (object))
|
|
|
3105 {
|
|
173
|
3106 return DISPLAYTABLE_SPECIFIERP (object) ? Qt : Qnil;
|
|
116
|
3107 }
|
|
|
3108
|
|
0
|
3109
|
|
|
3110 /************************************************************************/
|
|
|
3111 /* Initialization */
|
|
|
3112 /************************************************************************/
|
|
|
3113
|
|
|
3114 void
|
|
|
3115 syms_of_specifier (void)
|
|
|
3116 {
|
|
|
3117 defsymbol (&Qspecifierp, "specifierp");
|
|
|
3118
|
|
|
3119 defsymbol (&Qconsole_type, "console-type");
|
|
|
3120 defsymbol (&Qdevice_class, "device-class");
|
|
|
3121
|
|
|
3122 /* Qinteger, Qboolean, Qgeneric defined in general.c */
|
|
|
3123 defsymbol (&Qnatnum, "natnum");
|
|
|
3124
|
|
20
|
3125 DEFSUBR (Fvalid_specifier_type_p);
|
|
|
3126 DEFSUBR (Fspecifier_type_list);
|
|
|
3127 DEFSUBR (Fmake_specifier);
|
|
|
3128 DEFSUBR (Fspecifierp);
|
|
|
3129 DEFSUBR (Fspecifier_type);
|
|
|
3130
|
|
|
3131 DEFSUBR (Fvalid_specifier_locale_p);
|
|
|
3132 DEFSUBR (Fvalid_specifier_domain_p);
|
|
|
3133 DEFSUBR (Fvalid_specifier_locale_type_p);
|
|
|
3134 DEFSUBR (Fspecifier_locale_type_from_locale);
|
|
|
3135
|
|
|
3136 DEFSUBR (Fvalid_specifier_tag_p);
|
|
|
3137 DEFSUBR (Fvalid_specifier_tag_set_p);
|
|
|
3138 DEFSUBR (Fcanonicalize_tag_set);
|
|
|
3139 DEFSUBR (Fdevice_matches_specifier_tag_set_p);
|
|
|
3140 DEFSUBR (Fdefine_specifier_tag);
|
|
|
3141 DEFSUBR (Fdevice_matching_specifier_tag_list);
|
|
|
3142 DEFSUBR (Fspecifier_tag_list);
|
|
|
3143 DEFSUBR (Fspecifier_tag_predicate);
|
|
|
3144
|
|
|
3145 DEFSUBR (Fcheck_valid_instantiator);
|
|
|
3146 DEFSUBR (Fvalid_instantiator_p);
|
|
|
3147 DEFSUBR (Fcheck_valid_inst_list);
|
|
|
3148 DEFSUBR (Fvalid_inst_list_p);
|
|
|
3149 DEFSUBR (Fcheck_valid_spec_list);
|
|
|
3150 DEFSUBR (Fvalid_spec_list_p);
|
|
|
3151 DEFSUBR (Fadd_spec_to_specifier);
|
|
|
3152 DEFSUBR (Fadd_spec_list_to_specifier);
|
|
|
3153 DEFSUBR (Fspecifier_spec_list);
|
|
|
3154 DEFSUBR (Fspecifier_specs);
|
|
|
3155 DEFSUBR (Fremove_specifier);
|
|
|
3156 DEFSUBR (Fcopy_specifier);
|
|
|
3157
|
|
|
3158 DEFSUBR (Fcheck_valid_specifier_matchspec);
|
|
|
3159 DEFSUBR (Fvalid_specifier_matchspec_p);
|
|
|
3160 DEFSUBR (Fspecifier_fallback);
|
|
|
3161 DEFSUBR (Fspecifier_instance);
|
|
|
3162 DEFSUBR (Fspecifier_matching_instance);
|
|
|
3163 DEFSUBR (Fspecifier_instance_from_inst_list);
|
|
|
3164 DEFSUBR (Fspecifier_matching_instance_from_inst_list);
|
|
|
3165 DEFSUBR (Fset_specifier_dirty_flag);
|
|
|
3166
|
|
|
3167 DEFSUBR (Fgeneric_specifier_p);
|
|
|
3168 DEFSUBR (Finteger_specifier_p);
|
|
|
3169 DEFSUBR (Fnatnum_specifier_p);
|
|
|
3170 DEFSUBR (Fboolean_specifier_p);
|
|
175
|
3171 DEFSUBR (Fdisplay_table_specifier_p);
|
|
0
|
3172
|
|
|
3173 /* Symbols pertaining to specifier creation. Specifiers are created
|
|
|
3174 in the syms_of() functions. */
|
|
|
3175
|
|
|
3176 /* locales are defined in general.c. */
|
|
|
3177
|
|
|
3178 defsymbol (&Qprepend, "prepend");
|
|
|
3179 defsymbol (&Qappend, "append");
|
|
|
3180 defsymbol (&Qremove_tag_set_prepend, "remove-tag-set-prepend");
|
|
|
3181 defsymbol (&Qremove_tag_set_append, "remove-tag-set-append");
|
|
|
3182 defsymbol (&Qremove_locale, "remove-locale");
|
|
|
3183 defsymbol (&Qremove_locale_type, "remove-locale-type");
|
|
|
3184 defsymbol (&Qremove_all, "remove-all");
|
|
|
3185
|
|
|
3186 defsymbol (&Qfallback, "fallback");
|
|
|
3187 }
|
|
|
3188
|
|
|
3189 void
|
|
|
3190 specifier_type_create (void)
|
|
|
3191 {
|
|
185
|
3192 the_specifier_type_entry_dynarr = Dynarr_new (specifier_type_entry);
|
|
398
|
3193 dumpstruct (&the_specifier_type_entry_dynarr, &sted_description);
|
|
0
|
3194
|
|
|
3195 Vspecifier_type_list = Qnil;
|
|
|
3196 staticpro (&Vspecifier_type_list);
|
|
|
3197
|
|
|
3198 INITIALIZE_SPECIFIER_TYPE (generic, "generic", "generic-specifier-p");
|
|
|
3199
|
|
|
3200 INITIALIZE_SPECIFIER_TYPE (integer, "integer", "integer-specifier-p");
|
|
|
3201
|
|
|
3202 SPECIFIER_HAS_METHOD (integer, validate);
|
|
|
3203
|
|
|
3204 INITIALIZE_SPECIFIER_TYPE (natnum, "natnum", "natnum-specifier-p");
|
|
|
3205
|
|
|
3206 SPECIFIER_HAS_METHOD (natnum, validate);
|
|
|
3207
|
|
|
3208 INITIALIZE_SPECIFIER_TYPE (boolean, "boolean", "boolean-specifier-p");
|
|
|
3209
|
|
|
3210 SPECIFIER_HAS_METHOD (boolean, validate);
|
|
116
|
3211
|
|
175
|
3212 INITIALIZE_SPECIFIER_TYPE (display_table, "display-table", "display-table-p");
|
|
116
|
3213
|
|
|
3214 SPECIFIER_HAS_METHOD (display_table, validate);
|
|
0
|
3215 }
|
|
|
3216
|
|
|
3217 void
|
|
398
|
3218 reinit_specifier_type_create (void)
|
|
|
3219 {
|
|
|
3220 REINITIALIZE_SPECIFIER_TYPE (generic);
|
|
|
3221 REINITIALIZE_SPECIFIER_TYPE (integer);
|
|
|
3222 REINITIALIZE_SPECIFIER_TYPE (natnum);
|
|
|
3223 REINITIALIZE_SPECIFIER_TYPE (boolean);
|
|
|
3224 REINITIALIZE_SPECIFIER_TYPE (display_table);
|
|
|
3225 }
|
|
|
3226
|
|
|
3227 void
|
|
0
|
3228 vars_of_specifier (void)
|
|
|
3229 {
|
|
|
3230 Vcached_specifiers = Qnil;
|
|
|
3231 staticpro (&Vcached_specifiers);
|
|
|
3232
|
|
|
3233 /* Do NOT mark through this, or specifiers will never be GC'd.
|
|
380
|
3234 This is the same deal as for weak hash tables. */
|
|
0
|
3235 Vall_specifiers = Qnil;
|
|
398
|
3236 pdump_wire_list (&Vall_specifiers);
|
|
0
|
3237
|
|
|
3238 Vuser_defined_tags = Qnil;
|
|
|
3239 staticpro (&Vuser_defined_tags);
|
|
276
|
3240
|
|
280
|
3241 Vunlock_ghost_specifiers = Qnil;
|
|
|
3242 staticpro (&Vunlock_ghost_specifiers);
|
|
0
|
3243 }
|
