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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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27 rewritten by Ben Wing */
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28
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29 #include <config.h>
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30 #include "lisp.h"
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31
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32 #include "buffer.h"
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33 #include "device.h"
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34 #include "frame.h"
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35 #include "opaque.h"
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36 #include "specifier.h"
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37 #include "window.h"
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116
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38 #include "glyphs.h" /* for DISP_TABLE_SIZE definition */
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0
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39
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40 Lisp_Object Qspecifierp;
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41 Lisp_Object Qprepend, Qappend, Qremove_tag_set_prepend, Qremove_tag_set_append;
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42 Lisp_Object Qremove_locale, Qremove_locale_type, Qremove_all;
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43 Lisp_Object Qfallback;
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44
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45 /* Qinteger, Qboolean, Qgeneric defined in general.c. */
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46 Lisp_Object Qnatnum;
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47
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48 Lisp_Object Qconsole_type, Qdevice_class;
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49
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276
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50 static Lisp_Object Vuser_defined_tags;
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0
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51
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185
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52 typedef struct specifier_type_entry specifier_type_entry;
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0
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53 struct specifier_type_entry
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54 {
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55 Lisp_Object symbol;
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56 struct specifier_methods *meths;
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57 };
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58
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185
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59 typedef struct
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0
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60 {
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185
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61 Dynarr_declare (specifier_type_entry);
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0
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62 } specifier_type_entry_dynarr;
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63
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64 specifier_type_entry_dynarr *the_specifier_type_entry_dynarr;
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65
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276
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66 static Lisp_Object Vspecifier_type_list;
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67
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68 static Lisp_Object Vcached_specifiers;
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0
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69 /* Do NOT mark through this, or specifiers will never be GC'd. */
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276
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70 static Lisp_Object Vall_specifiers;
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71
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72 static Lisp_Object Vreveal_ghoste_specifiers;
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0
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73
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74 /* #### The purpose of this is to check for inheritance loops
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75 in specifiers that can inherit from other specifiers, but it's
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76 not yet implemented.
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77
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70
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78 #### Look into this for 19.14. */
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276
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79 static Lisp_Object_dynarr current_specifiers;
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0
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80
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81 static void recompute_cached_specifier_everywhere (Lisp_Object specifier);
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82
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272
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83 EXFUN (Fspecifier_specs, 4);
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84 EXFUN (Fremove_specifier, 4);
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85
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0
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86
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87 /************************************************************************/
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88 /* Specifier object methods */
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89 /************************************************************************/
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90
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91 /* Remove dead objects from the specified assoc list. */
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92
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93 static Lisp_Object
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94 cleanup_assoc_list (Lisp_Object list)
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95 {
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96 Lisp_Object loop, prev, retval;
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97
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98 loop = retval = list;
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99 prev = Qnil;
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100
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101 while (!NILP (loop))
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102 {
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103 Lisp_Object entry = XCAR (loop);
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104 Lisp_Object key = XCAR (entry);
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105
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106 /* remember, dead windows can become alive again. */
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107 if (!WINDOWP (key) && object_dead_p (key))
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108 {
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109 if (NILP (prev))
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110 {
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111 /* Removing the head. */
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112 retval = XCDR (retval);
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113 }
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114 else
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115 {
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116 Fsetcdr (prev, XCDR (loop));
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117 }
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118 }
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119 else
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120 prev = loop;
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121
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122 loop = XCDR (loop);
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123 }
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124
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125 return retval;
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126 }
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127
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128 /* Remove dead objects from the various lists so that they
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129 don't keep getting marked as long as this specifier exists and
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130 therefore wasting memory. */
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131
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132 void
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133 cleanup_specifiers (void)
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134 {
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135 Lisp_Object rest;
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136
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137 for (rest = Vall_specifiers;
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138 !NILP (rest);
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139 rest = XSPECIFIER (rest)->next_specifier)
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140 {
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173
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141 struct Lisp_Specifier *sp = XSPECIFIER (rest);
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0
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142 /* This effectively changes the specifier specs.
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143 However, there's no need to call
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144 recompute_cached_specifier_everywhere() or the
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145 after-change methods because the only specs we
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146 are removing are for dead objects, and they can
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147 never have any effect on the specifier values:
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148 specifiers can only be instantiated over live
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149 objects, and you can't derive a dead object
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150 from a live one. */
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151 sp->device_specs = cleanup_assoc_list (sp->device_specs);
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152 sp->frame_specs = cleanup_assoc_list (sp->frame_specs);
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153 sp->buffer_specs = cleanup_assoc_list (sp->buffer_specs);
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154 /* windows are handled specially because dead windows
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155 can be resurrected */
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156 }
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157 }
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158
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159 void
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160 kill_specifier_buffer_locals (Lisp_Object buffer)
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161 {
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162 Lisp_Object rest;
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163
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164 for (rest = Vall_specifiers;
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165 !NILP (rest);
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166 rest = XSPECIFIER (rest)->next_specifier)
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167 {
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168 struct Lisp_Specifier *sp = XSPECIFIER (rest);
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169
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170 /* Make sure we're actually going to be changing something.
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171 Fremove_specifier() always calls
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172 recompute_cached_specifier_everywhere() (#### but should
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173 be smarter about this). */
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174 if (!NILP (assq_no_quit (buffer, sp->buffer_specs)))
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175 Fremove_specifier (rest, buffer, Qnil, Qnil);
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176 }
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177 }
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178
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179 static Lisp_Object
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180 mark_specifier (Lisp_Object obj, void (*markobj) (Lisp_Object))
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181 {
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182 struct Lisp_Specifier *specifier = XSPECIFIER (obj);
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183
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184 ((markobj) (specifier->global_specs));
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185 ((markobj) (specifier->device_specs));
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186 ((markobj) (specifier->frame_specs));
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187 ((markobj) (specifier->window_specs));
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188 ((markobj) (specifier->buffer_specs));
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276
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189 ((markobj) (specifier->magic_parent));
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0
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190 ((markobj) (specifier->fallback));
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276
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191 if (!GHOST_SPECIFIER_P (XSPECIFIER (obj)))
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192 MAYBE_SPECMETH (specifier, mark, (obj, markobj));
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0
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193 return Qnil;
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194 }
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195
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196 /* The idea here is that the specifier specs point to locales
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197 (windows, buffers, frames, and devices), and we want to make sure
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198 that the specs disappear automatically when the associated locale
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199 is no longer in use. For all but windows, "no longer in use"
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200 corresponds exactly to when the object is deleted (non-deleted
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201 objects are always held permanently in special lists, and deleted
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202 objects are never on these lists and never reusable). To handle
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203 this, we just have cleanup_specifiers() called periodically
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204 (at the beginning of garbage collection); it removes all dead
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205 objects.
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206
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207 For windows, however, it's trickier because dead objects can be
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208 converted to live ones again if the dead object is in a window
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209 configuration. Therefore, for windows, "no longer in use"
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210 corresponds to when the window object is garbage-collected.
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211 We now use weak lists for this purpose.
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212
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213 */
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214
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215 void
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216 prune_specifiers (int (*obj_marked_p) (Lisp_Object))
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217 {
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218 Lisp_Object rest, prev = Qnil;
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219
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220 for (rest = Vall_specifiers;
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221 !GC_NILP (rest);
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222 rest = XSPECIFIER (rest)->next_specifier)
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223 {
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224 if (! ((*obj_marked_p) (rest)))
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225 {
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276
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226 struct Lisp_Specifier* sp = XSPECIFIER (rest);
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227 /* A bit of assertion that we're removing both parts of the
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228 magic one altogether */
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229 assert (!GC_MAGIC_SPECIFIER_P(sp)
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230 || (GC_BODILY_SPECIFIER_P(sp) && (*obj_marked_p)(sp->fallback))
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231 || (GC_GHOST_SPECIFIER_P(sp) && (*obj_marked_p)(sp->magic_parent)));
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0
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232 /* This specifier is garbage. Remove it from the list. */
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233 if (GC_NILP (prev))
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276
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234 Vall_specifiers = sp->next_specifier;
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0
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235 else
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276
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236 XSPECIFIER (prev)->next_specifier = sp->next_specifier;
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0
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237 }
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276
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238 else
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239 prev = rest;
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0
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240 }
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241 }
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242
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243 static void
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244 print_specifier (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
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245 {
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246 struct Lisp_Specifier *sp = XSPECIFIER (obj);
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247 char buf[100];
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248 int count = specpdl_depth ();
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249 Lisp_Object the_specs;
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250
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251 if (print_readably)
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252 error ("printing unreadable object #<%s-specifier 0x%x>",
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253 sp->methods->name, sp->header.uid);
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254
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255 sprintf (buf, "#<%s-specifier global=", sp->methods->name);
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256 write_c_string (buf, printcharfun);
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257 specbind (Qprint_string_length, make_int (100));
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258 specbind (Qprint_length, make_int (5));
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259 the_specs = Fspecifier_specs (obj, Qglobal, Qnil, Qnil);
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260 if (NILP (the_specs))
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261 /* there are no global specs */
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262 write_c_string ("<unspecified>", printcharfun);
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263 else
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264 print_internal (the_specs, printcharfun, 1);
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265 if (!NILP (sp->fallback))
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266 {
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267 write_c_string (" fallback=", printcharfun);
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268 print_internal (sp->fallback, printcharfun, escapeflag);
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269 }
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270 unbind_to (count, Qnil);
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271 sprintf (buf, " 0x%x>", sp->header.uid);
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272 write_c_string (buf, printcharfun);
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273 }
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274
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275 static void
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276 finalize_specifier (void *header, int for_disksave)
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277 {
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278 struct Lisp_Specifier *sp = (struct Lisp_Specifier *) header;
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279 /* don't be snafued by the disksave finalization. */
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276
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280 if (!for_disksave && !GC_GHOST_SPECIFIER_P(sp) && sp->caching)
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0
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281 {
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282 xfree (sp->caching);
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283 sp->caching = 0;
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284 }
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285 }
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286
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287 static int
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288 specifier_equal (Lisp_Object o1, Lisp_Object o2, int depth)
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289 {
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290 struct Lisp_Specifier *s1 = XSPECIFIER (o1);
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291 struct Lisp_Specifier *s2 = XSPECIFIER (o2);
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292 int retval;
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293 Lisp_Object old_inhibit_quit = Vinhibit_quit;
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294
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295 /* This function can be called from within redisplay.
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296 internal_equal can trigger a quit. That leads to Bad Things. */
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297 Vinhibit_quit = Qt;
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298
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299 depth++;
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272
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300 retval =
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301 (s1->methods == s2->methods &&
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302 internal_equal (s1->global_specs, s2->global_specs, depth) &&
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303 internal_equal (s1->device_specs, s2->device_specs, depth) &&
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304 internal_equal (s1->frame_specs, s2->frame_specs, depth) &&
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305 internal_equal (s1->window_specs, s2->window_specs, depth) &&
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306 internal_equal (s1->buffer_specs, s2->buffer_specs, depth));
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276
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307 /* #### Why do not compare fallbacks here? */
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272
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308
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309 if (retval && HAS_SPECMETH_P (s1, equal))
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310 retval = SPECMETH (s1, equal, (o1, o2, depth - 1));
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0
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311
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312 Vinhibit_quit = old_inhibit_quit;
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313 return retval;
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314 }
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315
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316 static unsigned long
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317 specifier_hash (Lisp_Object obj, int depth)
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318 {
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319 struct Lisp_Specifier *s = XSPECIFIER (obj);
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320
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321 /* specifier hashing is a bit problematic because there are so
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322 many places where data can be stored. We pick what are perhaps
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323 the most likely places where interesting stuff will be. */
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272
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324 return HASH5 ((HAS_SPECMETH_P (s, hash) ?
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325 SPECMETH (s, hash, (obj, depth)) : 0),
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0
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326 (unsigned long) s->methods,
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327 internal_hash (s->global_specs, depth + 1),
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272
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328 internal_hash (s->frame_specs, depth + 1),
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0
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329 internal_hash (s->buffer_specs, depth + 1));
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330 }
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331
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272
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332 static size_t
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0
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333 sizeof_specifier (CONST void *header)
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334 {
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276
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335 if (GHOST_SPECIFIER_P ((struct Lisp_Specifier *) header))
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336 return sizeof (struct Lisp_Specifier);
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337 else
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338 {
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339 CONST struct Lisp_Specifier *p = (CONST struct Lisp_Specifier *) header;
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340 return sizeof (*p) + p->methods->extra_data_size - 1;
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341 }
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0
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342 }
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343
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272
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344 DEFINE_LRECORD_SEQUENCE_IMPLEMENTATION ("specifier", specifier,
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345 mark_specifier, print_specifier,
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346 finalize_specifier,
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347 specifier_equal, specifier_hash,
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348 sizeof_specifier,
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349 struct Lisp_Specifier);
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0
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350
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351 /************************************************************************/
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352 /* Creating specifiers */
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353 /************************************************************************/
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354
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355 static struct specifier_methods *
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356 decode_specifier_type (Lisp_Object type, Error_behavior errb)
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357 {
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358 int i;
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359
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360 for (i = 0; i < Dynarr_length (the_specifier_type_entry_dynarr); i++)
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361 {
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362 if (EQ (type, Dynarr_at (the_specifier_type_entry_dynarr, i).symbol))
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363 return Dynarr_at (the_specifier_type_entry_dynarr, i).meths;
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364 }
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365
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366 maybe_signal_simple_error ("Invalid specifier type", type,
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367 Qspecifier, errb);
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368
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369 return 0;
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370 }
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371
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372 static int
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373 valid_specifier_type_p (Lisp_Object type)
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374 {
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272
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375 return decode_specifier_type (type, ERROR_ME_NOT) != 0;
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0
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376 }
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377
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20
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378 DEFUN ("valid-specifier-type-p", Fvalid_specifier_type_p, 1, 1, 0, /*
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0
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379 Given a SPECIFIER-TYPE, return non-nil if it is valid.
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380 Valid types are 'generic, 'integer, boolean, 'color, 'font, 'image,
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381 'face-boolean, and 'toolbar.
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20
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382 */
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383 (specifier_type))
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0
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384 {
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272
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385 return valid_specifier_type_p (specifier_type) ? Qt : Qnil;
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0
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386 }
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387
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20
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388 DEFUN ("specifier-type-list", Fspecifier_type_list, 0, 0, 0, /*
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0
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389 Return a list of valid specifier types.
|
|
20
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390 */
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391 ())
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0
|
392 {
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393 return Fcopy_sequence (Vspecifier_type_list);
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|
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394 }
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395
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396 void
|
|
|
397 add_entry_to_specifier_type_list (Lisp_Object symbol,
|
|
|
398 struct specifier_methods *meths)
|
|
|
399 {
|
|
|
400 struct specifier_type_entry entry;
|
|
|
401
|
|
|
402 entry.symbol = symbol;
|
|
|
403 entry.meths = meths;
|
|
|
404 Dynarr_add (the_specifier_type_entry_dynarr, entry);
|
|
|
405 Vspecifier_type_list = Fcons (symbol, Vspecifier_type_list);
|
|
|
406 }
|
|
|
407
|
|
|
408 static Lisp_Object
|
|
276
|
409 make_specifier_internal (struct specifier_methods *spec_meths,
|
|
|
410 size_t data_size, int call_create_meth)
|
|
0
|
411 {
|
|
272
|
412 Lisp_Object specifier;
|
|
185
|
413 struct Lisp_Specifier *sp = (struct Lisp_Specifier *)
|
|
|
414 alloc_lcrecord (sizeof (struct Lisp_Specifier) +
|
|
276
|
415 data_size - 1, lrecord_specifier);
|
|
0
|
416
|
|
|
417 sp->methods = spec_meths;
|
|
|
418 sp->global_specs = Qnil;
|
|
|
419 sp->device_specs = Qnil;
|
|
|
420 sp->frame_specs = Qnil;
|
|
|
421 sp->window_specs = make_weak_list (WEAK_LIST_KEY_ASSOC);
|
|
|
422 sp->buffer_specs = Qnil;
|
|
|
423 sp->fallback = Qnil;
|
|
276
|
424 sp->magic_parent = Qnil;
|
|
0
|
425 sp->caching = 0;
|
|
|
426 sp->next_specifier = Vall_specifiers;
|
|
|
427
|
|
|
428 XSETSPECIFIER (specifier, sp);
|
|
|
429 Vall_specifiers = specifier;
|
|
|
430
|
|
276
|
431 if (call_create_meth)
|
|
|
432 {
|
|
|
433 struct gcpro gcpro1;
|
|
|
434 GCPRO1 (specifier);
|
|
|
435 MAYBE_SPECMETH (XSPECIFIER (specifier), create, (specifier));
|
|
|
436 UNGCPRO;
|
|
|
437 }
|
|
|
438 return specifier;
|
|
|
439 }
|
|
|
440
|
|
|
441 static Lisp_Object
|
|
|
442 make_specifier (struct specifier_methods *meths)
|
|
|
443 {
|
|
|
444 return make_specifier_internal (meths, meths->extra_data_size, 1);
|
|
|
445 }
|
|
|
446
|
|
|
447 Lisp_Object
|
|
|
448 make_magic_specifier (Lisp_Object type)
|
|
|
449 {
|
|
|
450 /* This function can GC */
|
|
|
451 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
452 Lisp_Object bodily, ghost;
|
|
|
453 struct gcpro gcpro1;
|
|
|
454
|
|
|
455 bodily = make_specifier (meths);
|
|
|
456 GCPRO1 (bodily);
|
|
|
457 ghost = make_specifier_internal (meths, 0, 0);
|
|
0
|
458 UNGCPRO;
|
|
276
|
459
|
|
|
460 /* Connect guys together */
|
|
|
461 XSPECIFIER(bodily)->magic_parent = Qt;
|
|
|
462 XSPECIFIER(bodily)->fallback = ghost;
|
|
|
463 XSPECIFIER(ghost)->magic_parent = bodily;
|
|
|
464
|
|
|
465 return bodily;
|
|
0
|
466 }
|
|
|
467
|
|
20
|
468 DEFUN ("make-specifier", Fmake_specifier, 1, 1, 0, /*
|
|
272
|
469 Return a new specifier object of type TYPE.
|
|
0
|
470
|
|
|
471 A specifier is an object that can be used to keep track of a property
|
|
|
472 whose value can be per-buffer, per-window, per-frame, or per-device,
|
|
|
473 and can further be restricted to a particular console-type or device-class.
|
|
|
474 Specifiers are used, for example, for the various built-in properties of a
|
|
|
475 face; this allows a face to have different values in different frames,
|
|
|
476 buffers, etc. For more information, see `specifier-instance',
|
|
|
477 `specifier-specs', and `add-spec-to-specifier'; or, for a detailed
|
|
|
478 description of specifiers, including how they are instantiated over a
|
|
|
479 particular domain (i.e. how their value in that domain is determined),
|
|
|
480 see the chapter on specifiers in the XEmacs Lisp Reference Manual.
|
|
|
481
|
|
|
482 TYPE specifies the particular type of specifier, and should be one of
|
|
|
483 the symbols 'generic, 'integer, 'boolean, 'color, 'font, 'image,
|
|
|
484 'face-boolean, or 'toolbar.
|
|
|
485
|
|
|
486 For more information on particular types of specifiers, see the functions
|
|
|
487 `generic-specifier-p', `integer-specifier-p', `boolean-specifier-p',
|
|
|
488 `color-specifier-p', `font-specifier-p', `image-specifier-p',
|
|
|
489 `face-boolean-specifier-p', and `toolbar-specifier-p'.
|
|
20
|
490 */
|
|
|
491 (type))
|
|
0
|
492 {
|
|
|
493 /* This function can GC */
|
|
|
494 struct specifier_methods *meths = decode_specifier_type (type,
|
|
|
495 ERROR_ME);
|
|
|
496
|
|
|
497 return make_specifier (meths);
|
|
|
498 }
|
|
|
499
|
|
20
|
500 DEFUN ("specifierp", Fspecifierp, 1, 1, 0, /*
|
|
272
|
501 Return t if OBJECT is a specifier.
|
|
0
|
502
|
|
|
503 A specifier is an object that can be used to keep track of a property
|
|
|
504 whose value can be per-buffer, per-window, per-frame, or per-device,
|
|
|
505 and can further be restricted to a particular console-type or device-class.
|
|
|
506 See `make-specifier'.
|
|
20
|
507 */
|
|
|
508 (object))
|
|
0
|
509 {
|
|
272
|
510 return SPECIFIERP (object) ? Qt : Qnil;
|
|
0
|
511 }
|
|
|
512
|
|
20
|
513 DEFUN ("specifier-type", Fspecifier_type, 1, 1, 0, /*
|
|
0
|
514 Return the type of SPECIFIER.
|
|
20
|
515 */
|
|
|
516 (specifier))
|
|
0
|
517 {
|
|
|
518 CHECK_SPECIFIER (specifier);
|
|
|
519 return intern (XSPECIFIER (specifier)->methods->name);
|
|
|
520 }
|
|
|
521
|
|
|
522
|
|
|
523 /************************************************************************/
|
|
|
524 /* Locales and domains */
|
|
|
525 /************************************************************************/
|
|
|
526
|
|
20
|
527 DEFUN ("valid-specifier-locale-p", Fvalid_specifier_locale_p, 1, 1, 0, /*
|
|
272
|
528 Return t if LOCALE is a valid specifier locale.
|
|
|
529 Valid locales are devices, frames, windows, buffers, and 'global.
|
|
|
530 \(nil is not valid.)
|
|
20
|
531 */
|
|
|
532 (locale))
|
|
0
|
533 {
|
|
|
534 /* This cannot GC. */
|
|
272
|
535 return ((DEVICEP (locale) && DEVICE_LIVE_P (XDEVICE (locale))) ||
|
|
|
536 (FRAMEP (locale) && FRAME_LIVE_P (XFRAME (locale))) ||
|
|
|
537 (BUFFERP (locale) && BUFFER_LIVE_P (XBUFFER (locale))) ||
|
|
|
538 /* dead windows are allowed because they may become live
|
|
|
539 windows again when a window configuration is restored */
|
|
|
540 WINDOWP (locale) ||
|
|
|
541 EQ (locale, Qglobal))
|
|
|
542 ? Qt : Qnil;
|
|
0
|
543 }
|
|
|
544
|
|
20
|
545 DEFUN ("valid-specifier-domain-p", Fvalid_specifier_domain_p, 1, 1, 0, /*
|
|
272
|
546 Return t if DOMAIN is a valid specifier domain.
|
|
0
|
547 A domain is used to instance a specifier (i.e. determine the specifier's
|
|
272
|
548 value in that domain). Valid domains are windows, frames, and devices.
|
|
|
549 \(nil is not valid.)
|
|
20
|
550 */
|
|
70
|
551 (domain))
|
|
0
|
552 {
|
|
|
553 /* This cannot GC. */
|
|
272
|
554 return ((DEVICEP (domain) && DEVICE_LIVE_P (XDEVICE (domain))) ||
|
|
|
555 (FRAMEP (domain) && FRAME_LIVE_P (XFRAME (domain))) ||
|
|
|
556 (WINDOWP (domain) && WINDOW_LIVE_P (XWINDOW (domain))))
|
|
|
557 ? Qt : Qnil;
|
|
0
|
558 }
|
|
|
559
|
|
20
|
560 DEFUN ("valid-specifier-locale-type-p", Fvalid_specifier_locale_type_p, 1, 1, 0, /*
|
|
0
|
561 Given a specifier LOCALE-TYPE, return non-nil if it is valid.
|
|
|
562 Valid locale types are 'global, 'device, 'frame, 'window, and 'buffer.
|
|
272
|
563 \(Note, however, that in functions that accept either a locale or a locale
|
|
0
|
564 type, 'global is considered an individual locale.)
|
|
20
|
565 */
|
|
70
|
566 (locale_type))
|
|
0
|
567 {
|
|
|
568 /* This cannot GC. */
|
|
272
|
569 return (EQ (locale_type, Qglobal) ||
|
|
|
570 EQ (locale_type, Qdevice) ||
|
|
|
571 EQ (locale_type, Qframe) ||
|
|
|
572 EQ (locale_type, Qwindow) ||
|
|
|
573 EQ (locale_type, Qbuffer)) ? Qt : Qnil;
|
|
0
|
574 }
|
|
|
575
|
|
|
576 static void
|
|
|
577 check_valid_locale_or_locale_type (Lisp_Object locale)
|
|
|
578 {
|
|
|
579 /* This cannot GC. */
|
|
|
580 if (EQ (locale, Qall) ||
|
|
|
581 !NILP (Fvalid_specifier_locale_p (locale)) ||
|
|
|
582 !NILP (Fvalid_specifier_locale_type_p (locale)))
|
|
|
583 return;
|
|
|
584 signal_simple_error ("Invalid specifier locale or locale type", locale);
|
|
|
585 }
|
|
|
586
|
|
272
|
587 DEFUN ("specifier-locale-type-from-locale",
|
|
|
588 Fspecifier_locale_type_from_locale, 1, 1, 0, /*
|
|
0
|
589 Given a specifier LOCALE, return its type.
|
|
20
|
590 */
|
|
|
591 (locale))
|
|
0
|
592 {
|
|
|
593 /* This cannot GC. */
|
|
|
594 if (NILP (Fvalid_specifier_locale_p (locale)))
|
|
|
595 signal_simple_error ("Invalid specifier locale", locale);
|
|
272
|
596 if (DEVICEP (locale)) return Qdevice;
|
|
|
597 if (FRAMEP (locale)) return Qframe;
|
|
|
598 if (WINDOWP (locale)) return Qwindow;
|
|
|
599 if (BUFFERP (locale)) return Qbuffer;
|
|
0
|
600 assert (EQ (locale, Qglobal));
|
|
|
601 return Qglobal;
|
|
|
602 }
|
|
|
603
|
|
272
|
604 static Lisp_Object
|
|
0
|
605 decode_locale (Lisp_Object locale)
|
|
|
606 {
|
|
|
607 /* This cannot GC. */
|
|
|
608 if (NILP (locale))
|
|
|
609 return Qglobal;
|
|
|
610 else if (!NILP (Fvalid_specifier_locale_p (locale)))
|
|
|
611 return locale;
|
|
|
612 else
|
|
|
613 signal_simple_error ("Invalid specifier locale", locale);
|
|
|
614
|
|
|
615 return Qnil;
|
|
|
616 }
|
|
|
617
|
|
|
618 static enum spec_locale_type
|
|
|
619 decode_locale_type (Lisp_Object locale_type)
|
|
|
620 {
|
|
|
621 /* This cannot GC. */
|
|
2
|
622 if (EQ (locale_type, Qglobal)) return LOCALE_GLOBAL;
|
|
|
623 if (EQ (locale_type, Qdevice)) return LOCALE_DEVICE;
|
|
|
624 if (EQ (locale_type, Qframe)) return LOCALE_FRAME;
|
|
|
625 if (EQ (locale_type, Qwindow)) return LOCALE_WINDOW;
|
|
|
626 if (EQ (locale_type, Qbuffer)) return LOCALE_BUFFER;
|
|
173
|
627
|
|
0
|
628 signal_simple_error ("Invalid specifier locale type", locale_type);
|
|
2
|
629 return LOCALE_GLOBAL; /* not reached */
|
|
0
|
630 }
|
|
|
631
|
|
|
632 Lisp_Object
|
|
|
633 decode_locale_list (Lisp_Object locale)
|
|
|
634 {
|
|
|
635 /* This cannot GC. */
|
|
|
636 /* The return value of this function must be GCPRO'd. */
|
|
|
637 if (NILP (locale))
|
|
|
638 locale = list1 (Qall);
|
|
|
639 else
|
|
|
640 {
|
|
|
641 Lisp_Object rest;
|
|
|
642 if (!CONSP (locale))
|
|
|
643 locale = list1 (locale);
|
|
|
644 EXTERNAL_LIST_LOOP (rest, locale)
|
|
|
645 check_valid_locale_or_locale_type (XCAR (rest));
|
|
|
646 }
|
|
|
647 return locale;
|
|
|
648 }
|
|
|
649
|
|
|
650 static enum spec_locale_type
|
|
|
651 locale_type_from_locale (Lisp_Object locale)
|
|
|
652 {
|
|
|
653 return decode_locale_type (Fspecifier_locale_type_from_locale (locale));
|
|
|
654 }
|
|
|
655
|
|
|
656 static void
|
|
|
657 check_valid_domain (Lisp_Object domain)
|
|
|
658 {
|
|
|
659 if (NILP (Fvalid_specifier_domain_p (domain)))
|
|
|
660 signal_simple_error ("Invalid specifier domain", domain);
|
|
|
661 }
|
|
|
662
|
|
272
|
663 static Lisp_Object
|
|
0
|
664 decode_domain (Lisp_Object domain)
|
|
|
665 {
|
|
|
666 if (NILP (domain))
|
|
|
667 return Fselected_window (Qnil);
|
|
|
668 check_valid_domain (domain);
|
|
|
669 return domain;
|
|
|
670 }
|
|
|
671
|
|
|
672
|
|
|
673 /************************************************************************/
|
|
|
674 /* Tags */
|
|
|
675 /************************************************************************/
|
|
|
676
|
|
20
|
677 DEFUN ("valid-specifier-tag-p", Fvalid_specifier_tag_p, 1, 1, 0, /*
|
|
0
|
678 Return non-nil if TAG is a valid specifier tag.
|
|
|
679 See also `valid-specifier-tag-set-p'.
|
|
20
|
680 */
|
|
|
681 (tag))
|
|
0
|
682 {
|
|
272
|
683 return (valid_console_type_p (tag) ||
|
|
|
684 valid_device_class_p (tag) ||
|
|
|
685 !NILP (assq_no_quit (tag, Vuser_defined_tags))) ? Qt : Qnil;
|
|
0
|
686 }
|
|
|
687
|
|
20
|
688 DEFUN ("valid-specifier-tag-set-p", Fvalid_specifier_tag_set_p, 1, 1, 0, /*
|
|
0
|
689 Return non-nil if TAG-SET is a valid specifier tag set.
|
|
|
690
|
|
|
691 A specifier tag set is an entity that is attached to an instantiator
|
|
|
692 and can be used to restrict the scope of that instantiator to a
|
|
|
693 particular device class or device type and/or to mark instantiators
|
|
|
694 added by a particular package so that they can be later removed.
|
|
|
695
|
|
|
696 A specifier tag set consists of a list of zero of more specifier tags,
|
|
|
697 each of which is a symbol that is recognized by XEmacs as a tag.
|
|
272
|
698 \(The valid device types and device classes are always tags, as are
|
|
185
|
699 any tags defined by `define-specifier-tag'.) It is called a "tag set"
|
|
272
|
700 \(as opposed to a list) because the order of the tags or the number of
|
|
0
|
701 times a particular tag occurs does not matter.
|
|
|
702
|
|
|
703 Each tag has a predicate associated with it, which specifies whether
|
|
|
704 that tag applies to a particular device. The tags which are device types
|
|
|
705 and classes match devices of that type or class. User-defined tags can
|
|
|
706 have any predicate, or none (meaning that all devices match). When
|
|
|
707 attempting to instance a specifier, a particular instantiator is only
|
|
|
708 considered if the device of the domain being instanced over matches
|
|
|
709 all tags in the tag set attached to that instantiator.
|
|
|
710
|
|
|
711 Most of the time, a tag set is not specified, and the instantiator
|
|
|
712 gets a null tag set, which matches all devices.
|
|
20
|
713 */
|
|
70
|
714 (tag_set))
|
|
0
|
715 {
|
|
|
716 Lisp_Object rest;
|
|
|
717
|
|
|
718 for (rest = tag_set; !NILP (rest); rest = XCDR (rest))
|
|
|
719 {
|
|
|
720 if (!CONSP (rest))
|
|
|
721 return Qnil;
|
|
|
722 if (NILP (Fvalid_specifier_tag_p (XCAR (rest))))
|
|
|
723 return Qnil;
|
|
|
724 QUIT;
|
|
|
725 }
|
|
|
726 return Qt;
|
|
|
727 }
|
|
|
728
|
|
|
729 Lisp_Object
|
|
|
730 decode_specifier_tag_set (Lisp_Object tag_set)
|
|
|
731 {
|
|
|
732 /* The return value of this function must be GCPRO'd. */
|
|
|
733 if (!NILP (Fvalid_specifier_tag_p (tag_set)))
|
|
|
734 return list1 (tag_set);
|
|
|
735 if (NILP (Fvalid_specifier_tag_set_p (tag_set)))
|
|
|
736 signal_simple_error ("Invalid specifier tag-set", tag_set);
|
|
|
737 return tag_set;
|
|
|
738 }
|
|
|
739
|
|
|
740 static Lisp_Object
|
|
|
741 canonicalize_tag_set (Lisp_Object tag_set)
|
|
|
742 {
|
|
|
743 int len = XINT (Flength (tag_set));
|
|
|
744 Lisp_Object *tags, rest;
|
|
|
745 int i, j;
|
|
|
746
|
|
|
747 /* We assume in this function that the tag_set has already been
|
|
|
748 validated, so there are no surprises. */
|
|
|
749
|
|
|
750 if (len == 0 || len == 1)
|
|
|
751 /* most common case */
|
|
|
752 return tag_set;
|
|
|
753
|
|
185
|
754 tags = alloca_array (Lisp_Object, len);
|
|
0
|
755
|
|
|
756 i = 0;
|
|
|
757 LIST_LOOP (rest, tag_set)
|
|
|
758 tags[i++] = XCAR (rest);
|
|
173
|
759
|
|
0
|
760 /* Sort the list of tags. We use a bubble sort here (copied from
|
|
|
761 extent_fragment_update()) -- reduces the function call overhead,
|
|
|
762 and is the fastest sort for small numbers of items. */
|
|
|
763
|
|
|
764 for (i = 1; i < len; i++)
|
|
|
765 {
|
|
|
766 j = i - 1;
|
|
|
767 while (j >= 0 &&
|
|
|
768 strcmp ((char *) string_data (XSYMBOL (tags[j])->name),
|
|
|
769 (char *) string_data (XSYMBOL (tags[j+1])->name)) > 0)
|
|
|
770 {
|
|
|
771 Lisp_Object tmp = tags[j];
|
|
|
772 tags[j] = tags[j+1];
|
|
|
773 tags[j+1] = tmp;
|
|
|
774 j--;
|
|
|
775 }
|
|
|
776 }
|
|
|
777
|
|
|
778 /* Now eliminate duplicates. */
|
|
|
779
|
|
|
780 for (i = 1, j = 1; i < len; i++)
|
|
|
781 {
|
|
|
782 /* j holds the destination, i the source. */
|
|
|
783 if (!EQ (tags[i], tags[i-1]))
|
|
|
784 tags[j++] = tags[i];
|
|
|
785 }
|
|
|
786
|
|
|
787 return Flist (j, tags);
|
|
|
788 }
|
|
|
789
|
|
20
|
790 DEFUN ("canonicalize-tag-set", Fcanonicalize_tag_set, 1, 1, 0, /*
|
|
0
|
791 Canonicalize the given tag set.
|
|
|
792 Two canonicalized tag sets can be compared with `equal' to see if they
|
|
|
793 represent the same tag set. (Specifically, canonicalizing involves
|
|
|
794 sorting by symbol name and removing duplicates.)
|
|
20
|
795 */
|
|
|
796 (tag_set))
|
|
0
|
797 {
|
|
|
798 if (NILP (Fvalid_specifier_tag_set_p (tag_set)))
|
|
|
799 signal_simple_error ("Invalid tag set", tag_set);
|
|
|
800 return canonicalize_tag_set (tag_set);
|
|
|
801 }
|
|
|
802
|
|
|
803 static int
|
|
|
804 device_matches_specifier_tag_set_p (Lisp_Object device, Lisp_Object tag_set)
|
|
|
805 {
|
|
|
806 Lisp_Object devtype, devclass, rest;
|
|
|
807 struct device *d = XDEVICE (device);
|
|
|
808
|
|
|
809 devtype = DEVICE_TYPE (d);
|
|
|
810 devclass = DEVICE_CLASS (d);
|
|
|
811
|
|
|
812 LIST_LOOP (rest, tag_set)
|
|
|
813 {
|
|
|
814 Lisp_Object tag = XCAR (rest);
|
|
|
815 Lisp_Object assoc;
|
|
|
816
|
|
|
817 if (EQ (tag, devtype) || EQ (tag, devclass))
|
|
|
818 continue;
|
|
|
819 assoc = assq_no_quit (tag, DEVICE_USER_DEFINED_TAGS (d));
|
|
|
820 /* other built-in tags (device types/classes) are not in
|
|
|
821 the user-defined-tags list. */
|
|
|
822 if (NILP (assoc) || NILP (XCDR (assoc)))
|
|
|
823 return 0;
|
|
|
824 }
|
|
|
825
|
|
|
826 return 1;
|
|
|
827 }
|
|
|
828
|
|
20
|
829 DEFUN ("device-matches-specifier-tag-set-p", Fdevice_matches_specifier_tag_set_p, 2, 2, 0, /*
|
|
0
|
830 Return non-nil if DEVICE matches specifier tag set TAG-SET.
|
|
|
831 This means that DEVICE matches each tag in the tag set. (Every
|
|
|
832 tag recognized by XEmacs has a predicate associated with it that
|
|
|
833 specifies which devices match it.)
|
|
20
|
834 */
|
|
|
835 (device, tag_set))
|
|
0
|
836 {
|
|
|
837 CHECK_LIVE_DEVICE (device);
|
|
|
838
|
|
|
839 if (NILP (Fvalid_specifier_tag_set_p (tag_set)))
|
|
|
840 signal_simple_error ("Invalid tag set", tag_set);
|
|
|
841
|
|
|
842 return device_matches_specifier_tag_set_p (device, tag_set) ? Qt : Qnil;
|
|
|
843 }
|
|
|
844
|
|
20
|
845 DEFUN ("define-specifier-tag", Fdefine_specifier_tag, 1, 2, 0, /*
|
|
0
|
846 Define a new specifier tag.
|
|
|
847 If PREDICATE is specified, it should be a function of one argument
|
|
272
|
848 \(a device) that specifies whether the tag matches that particular
|
|
0
|
849 device. If PREDICATE is omitted, the tag matches all devices.
|
|
|
850
|
|
|
851 You can redefine an existing user-defined specifier tag. However,
|
|
|
852 you cannot redefine the built-in specifier tags (the device types
|
|
|
853 and classes) or the symbols nil, t, 'all, or 'global.
|
|
20
|
854 */
|
|
|
855 (tag, predicate))
|
|
0
|
856 {
|
|
|
857 Lisp_Object assoc, devcons, concons;
|
|
|
858 int recompute = 0;
|
|
|
859
|
|
|
860 CHECK_SYMBOL (tag);
|
|
|
861 if (valid_device_class_p (tag) ||
|
|
|
862 valid_console_type_p (tag))
|
|
|
863 signal_simple_error ("Cannot redefine built-in specifier tags", tag);
|
|
|
864 /* Try to prevent common instantiators and locales from being
|
|
|
865 redefined, to reduce ambiguity */
|
|
|
866 if (NILP (tag) || EQ (tag, Qt) || EQ (tag, Qall) || EQ (tag, Qglobal))
|
|
|
867 signal_simple_error ("Cannot define nil, t, 'all, or 'global",
|
|
|
868 tag);
|
|
|
869 assoc = assq_no_quit (tag, Vuser_defined_tags);
|
|
|
870 if (NILP (assoc))
|
|
|
871 {
|
|
|
872 recompute = 1;
|
|
|
873 Vuser_defined_tags = Fcons (Fcons (tag, predicate), Vuser_defined_tags);
|
|
|
874 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
875 {
|
|
|
876 struct device *d = XDEVICE (XCAR (devcons));
|
|
|
877 /* Initially set the value to t in case of error
|
|
|
878 in predicate */
|
|
|
879 DEVICE_USER_DEFINED_TAGS (d) =
|
|
|
880 Fcons (Fcons (tag, Qt), DEVICE_USER_DEFINED_TAGS (d));
|
|
|
881 }
|
|
|
882 }
|
|
|
883 else if (!NILP (predicate) && !NILP (XCDR (assoc)))
|
|
|
884 {
|
|
|
885 recompute = 1;
|
|
|
886 XCDR (assoc) = predicate;
|
|
|
887 }
|
|
|
888
|
|
|
889 /* recompute the tag values for all devices. However, in the special
|
|
|
890 case where both the old and new predicates are nil, we know that
|
|
|
891 we don't have to do this. (It's probably common for people to
|
|
|
892 call (define-specifier-tag) more than once on the same tag,
|
|
|
893 and the most common case is where PREDICATE is not specified.) */
|
|
|
894
|
|
|
895 if (recompute)
|
|
|
896 {
|
|
|
897 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
898 {
|
|
|
899 Lisp_Object device = XCAR (devcons);
|
|
|
900 assoc = assq_no_quit (tag,
|
|
|
901 DEVICE_USER_DEFINED_TAGS (XDEVICE (device)));
|
|
|
902 assert (CONSP (assoc));
|
|
|
903 if (NILP (predicate))
|
|
|
904 XCDR (assoc) = Qt;
|
|
|
905 else
|
|
|
906 XCDR (assoc) = !NILP (call1 (predicate, device)) ? Qt : Qnil;
|
|
|
907 }
|
|
|
908 }
|
|
|
909
|
|
|
910 return Qnil;
|
|
|
911 }
|
|
|
912
|
|
|
913 /* Called at device-creation time to initialize the user-defined
|
|
|
914 tag values for the newly-created device. */
|
|
|
915
|
|
|
916 void
|
|
|
917 setup_device_initial_specifier_tags (struct device *d)
|
|
|
918 {
|
|
|
919 Lisp_Object rest, rest2;
|
|
272
|
920 Lisp_Object device;
|
|
0
|
921
|
|
|
922 XSETDEVICE (device, d);
|
|
173
|
923
|
|
0
|
924 DEVICE_USER_DEFINED_TAGS (d) = Fcopy_alist (Vuser_defined_tags);
|
|
|
925
|
|
|
926 /* Now set up the initial values */
|
|
|
927 LIST_LOOP (rest, DEVICE_USER_DEFINED_TAGS (d))
|
|
|
928 XCDR (XCAR (rest)) = Qt;
|
|
|
929
|
|
|
930 for (rest = Vuser_defined_tags, rest2 = DEVICE_USER_DEFINED_TAGS (d);
|
|
|
931 !NILP (rest); rest = XCDR (rest), rest2 = XCDR (rest2))
|
|
|
932 {
|
|
|
933 Lisp_Object predicate = XCDR (XCAR (rest));
|
|
|
934 if (NILP (predicate))
|
|
|
935 XCDR (XCAR (rest2)) = Qt;
|
|
|
936 else
|
|
|
937 XCDR (XCAR (rest2)) = !NILP (call1 (predicate, device)) ? Qt : Qnil;
|
|
|
938 }
|
|
|
939 }
|
|
|
940
|
|
272
|
941 DEFUN ("device-matching-specifier-tag-list",
|
|
|
942 Fdevice_matching_specifier_tag_list, 0, 1, 0, /*
|
|
0
|
943 Return a list of all specifier tags matching DEVICE.
|
|
|
944 DEVICE defaults to the selected device if omitted.
|
|
20
|
945 */
|
|
|
946 (device))
|
|
0
|
947 {
|
|
|
948 struct device *d = decode_device (device);
|
|
|
949 Lisp_Object rest, list = Qnil;
|
|
|
950 struct gcpro gcpro1;
|
|
173
|
951
|
|
0
|
952 GCPRO1 (list);
|
|
|
953
|
|
|
954 LIST_LOOP (rest, DEVICE_USER_DEFINED_TAGS (d))
|
|
|
955 {
|
|
|
956 if (!NILP (XCDR (XCAR (rest))))
|
|
|
957 list = Fcons (XCAR (XCAR (rest)), list);
|
|
|
958 }
|
|
|
959
|
|
|
960 list = Fnreverse (list);
|
|
|
961 list = Fcons (DEVICE_CLASS (d), list);
|
|
272
|
962 list = Fcons (DEVICE_TYPE (d), list);
|
|
0
|
963
|
|
|
964 RETURN_UNGCPRO (list);
|
|
|
965 }
|
|
|
966
|
|
20
|
967 DEFUN ("specifier-tag-list", Fspecifier_tag_list, 0, 0, 0, /*
|
|
0
|
968 Return a list of all currently-defined specifier tags.
|
|
|
969 This includes the built-in ones (the device types and classes).
|
|
20
|
970 */
|
|
|
971 ())
|
|
0
|
972 {
|
|
|
973 Lisp_Object list = Qnil, rest;
|
|
|
974 struct gcpro gcpro1;
|
|
|
975
|
|
|
976 GCPRO1 (list);
|
|
|
977
|
|
|
978 LIST_LOOP (rest, Vuser_defined_tags)
|
|
|
979 list = Fcons (XCAR (XCAR (rest)), list);
|
|
|
980
|
|
|
981 list = Fnreverse (list);
|
|
|
982 list = nconc2 (Fcopy_sequence (Vdevice_class_list), list);
|
|
|
983 list = nconc2 (Fcopy_sequence (Vconsole_type_list), list);
|
|
|
984
|
|
|
985 RETURN_UNGCPRO (list);
|
|
|
986 }
|
|
|
987
|
|
20
|
988 DEFUN ("specifier-tag-predicate", Fspecifier_tag_predicate, 1, 1, 0, /*
|
|
0
|
989 Return the predicate for the given specifier tag.
|
|
20
|
990 */
|
|
|
991 (tag))
|
|
0
|
992 {
|
|
|
993 /* The return value of this function must be GCPRO'd. */
|
|
|
994 CHECK_SYMBOL (tag);
|
|
|
995
|
|
|
996 if (NILP (Fvalid_specifier_tag_p (tag)))
|
|
|
997 signal_simple_error ("Invalid specifier tag", tag);
|
|
|
998
|
|
|
999 /* Make up some predicates for the built-in types */
|
|
|
1000
|
|
|
1001 if (valid_console_type_p (tag))
|
|
|
1002 return list3 (Qlambda, list1 (Qdevice),
|
|
|
1003 list3 (Qeq, list2 (Qquote, tag),
|
|
|
1004 list2 (Qconsole_type, Qdevice)));
|
|
173
|
1005
|
|
0
|
1006 if (valid_device_class_p (tag))
|
|
|
1007 return list3 (Qlambda, list1 (Qdevice),
|
|
|
1008 list3 (Qeq, list2 (Qquote, tag),
|
|
|
1009 list2 (Qdevice_class, Qdevice)));
|
|
|
1010
|
|
|
1011 return XCDR (assq_no_quit (tag, Vuser_defined_tags));
|
|
|
1012 }
|
|
|
1013
|
|
|
1014 /* Return true if A "matches" B. If EXACT_P is 0, A must be a subset of B.
|
|
|
1015 Otherwise, A must be `equal' to B. The sets must be canonicalized. */
|
|
|
1016 static int
|
|
|
1017 tag_sets_match_p (Lisp_Object a, Lisp_Object b, int exact_p)
|
|
|
1018 {
|
|
|
1019 if (!exact_p)
|
|
|
1020 {
|
|
|
1021 while (!NILP (a) && !NILP (b))
|
|
|
1022 {
|
|
|
1023 if (EQ (XCAR (a), XCAR (b)))
|
|
|
1024 a = XCDR (a);
|
|
|
1025 b = XCDR (b);
|
|
|
1026 }
|
|
173
|
1027
|
|
0
|
1028 return NILP (a);
|
|
|
1029 }
|
|
|
1030 else
|
|
|
1031 {
|
|
|
1032 while (!NILP (a) && !NILP (b))
|
|
|
1033 {
|
|
|
1034 if (!EQ (XCAR (a), XCAR (b)))
|
|
|
1035 return 0;
|
|
|
1036 a = XCDR (a);
|
|
|
1037 b = XCDR (b);
|
|
|
1038 }
|
|
|
1039
|
|
|
1040 return NILP (a) && NILP (b);
|
|
|
1041 }
|
|
|
1042 }
|
|
|
1043
|
|
|
1044
|
|
|
1045 /************************************************************************/
|
|
|
1046 /* Spec-lists and inst-lists */
|
|
|
1047 /************************************************************************/
|
|
|
1048
|
|
|
1049 static Lisp_Object
|
|
|
1050 call_validate_method (Lisp_Object boxed_method, Lisp_Object instantiator)
|
|
|
1051 {
|
|
|
1052 ((void (*)(Lisp_Object)) get_opaque_ptr (boxed_method)) (instantiator);
|
|
|
1053 return Qt;
|
|
|
1054 }
|
|
|
1055
|
|
|
1056 static Lisp_Object
|
|
|
1057 check_valid_instantiator (Lisp_Object instantiator,
|
|
|
1058 struct specifier_methods *meths,
|
|
|
1059 Error_behavior errb)
|
|
|
1060 {
|
|
|
1061 if (meths->validate_method)
|
|
|
1062 {
|
|
|
1063 Lisp_Object retval;
|
|
|
1064
|
|
|
1065 if (ERRB_EQ (errb, ERROR_ME))
|
|
|
1066 {
|
|
|
1067 (meths->validate_method) (instantiator);
|
|
|
1068 retval = Qt;
|
|
|
1069 }
|
|
|
1070 else
|
|
|
1071 {
|
|
|
1072 Lisp_Object opaque = make_opaque_ptr ((void *)
|
|
|
1073 meths->validate_method);
|
|
|
1074 struct gcpro gcpro1;
|
|
|
1075
|
|
|
1076 GCPRO1 (opaque);
|
|
74
|
1077 retval = call_with_suspended_errors
|
|
|
1078 ((lisp_fn_t) call_validate_method,
|
|
|
1079 Qnil, Qspecifier, errb, 2, opaque, instantiator);
|
|
173
|
1080
|
|
0
|
1081 free_opaque_ptr (opaque);
|
|
|
1082 UNGCPRO;
|
|
|
1083 }
|
|
|
1084
|
|
|
1085 return retval;
|
|
|
1086 }
|
|
|
1087 return Qt;
|
|
|
1088 }
|
|
|
1089
|
|
20
|
1090 DEFUN ("check-valid-instantiator", Fcheck_valid_instantiator, 2, 2, 0, /*
|
|
0
|
1091 Signal an error if INSTANTIATOR is invalid for SPECIFIER-TYPE.
|
|
20
|
1092 */
|
|
|
1093 (instantiator, specifier_type))
|
|
0
|
1094 {
|
|
|
1095 struct specifier_methods *meths = decode_specifier_type (specifier_type,
|
|
|
1096 ERROR_ME);
|
|
|
1097
|
|
|
1098 return check_valid_instantiator (instantiator, meths, ERROR_ME);
|
|
|
1099 }
|
|
|
1100
|
|
20
|
1101 DEFUN ("valid-instantiator-p", Fvalid_instantiator_p, 2, 2, 0, /*
|
|
0
|
1102 Return non-nil if INSTANTIATOR is valid for SPECIFIER-TYPE.
|
|
20
|
1103 */
|
|
|
1104 (instantiator, specifier_type))
|
|
0
|
1105 {
|
|
|
1106 struct specifier_methods *meths = decode_specifier_type (specifier_type,
|
|
|
1107 ERROR_ME);
|
|
|
1108
|
|
|
1109 return check_valid_instantiator (instantiator, meths, ERROR_ME_NOT);
|
|
|
1110 }
|
|
|
1111
|
|
|
1112 static Lisp_Object
|
|
|
1113 check_valid_inst_list (Lisp_Object inst_list, struct specifier_methods *meths,
|
|
|
1114 Error_behavior errb)
|
|
|
1115 {
|
|
|
1116 Lisp_Object rest;
|
|
|
1117
|
|
|
1118 LIST_LOOP (rest, inst_list)
|
|
|
1119 {
|
|
272
|
1120 Lisp_Object inst_pair, tag_set;
|
|
|
1121
|
|
|
1122 if (!CONSP (rest))
|
|
0
|
1123 {
|
|
|
1124 maybe_signal_simple_error ("Invalid instantiator list", inst_list,
|
|
|
1125 Qspecifier, errb);
|
|
|
1126 return Qnil;
|
|
|
1127 }
|
|
272
|
1128 if (!CONSP (inst_pair = XCAR (rest)))
|
|
0
|
1129 {
|
|
272
|
1130 maybe_signal_simple_error ("Invalid instantiator pair", inst_pair,
|
|
|
1131 Qspecifier, errb);
|
|
0
|
1132 return Qnil;
|
|
|
1133 }
|
|
272
|
1134 if (NILP (Fvalid_specifier_tag_set_p (tag_set = XCAR (inst_pair))))
|
|
|
1135 {
|
|
|
1136 maybe_signal_simple_error ("Invalid specifier tag", tag_set,
|
|
|
1137 Qspecifier, errb);
|
|
|
1138 return Qnil;
|
|
|
1139 }
|
|
|
1140
|
|
|
1141 if (NILP (check_valid_instantiator (XCDR (inst_pair), meths, errb)))
|
|
0
|
1142 return Qnil;
|
|
|
1143 }
|
|
|
1144
|
|
|
1145 return Qt;
|
|
|
1146 }
|
|
|
1147
|
|
20
|
1148 DEFUN ("check-valid-inst-list", Fcheck_valid_inst_list, 2, 2, 0, /*
|
|
0
|
1149 Signal an error if INST-LIST is invalid for specifier type TYPE.
|
|
20
|
1150 */
|
|
|
1151 (inst_list, type))
|
|
0
|
1152 {
|
|
|
1153 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
1154
|
|
|
1155 return check_valid_inst_list (inst_list, meths, ERROR_ME);
|
|
|
1156 }
|
|
|
1157
|
|
20
|
1158 DEFUN ("valid-inst-list-p", Fvalid_inst_list_p, 2, 2, 0, /*
|
|
0
|
1159 Return non-nil if INST-LIST is valid for specifier type TYPE.
|
|
20
|
1160 */
|
|
|
1161 (inst_list, type))
|
|
0
|
1162 {
|
|
|
1163 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
1164
|
|
|
1165 return check_valid_inst_list (inst_list, meths, ERROR_ME_NOT);
|
|
|
1166 }
|
|
|
1167
|
|
|
1168 static Lisp_Object
|
|
|
1169 check_valid_spec_list (Lisp_Object spec_list, struct specifier_methods *meths,
|
|
|
1170 Error_behavior errb)
|
|
|
1171 {
|
|
|
1172 Lisp_Object rest;
|
|
|
1173
|
|
|
1174 LIST_LOOP (rest, spec_list)
|
|
|
1175 {
|
|
272
|
1176 Lisp_Object spec, locale;
|
|
|
1177 if (!CONSP (rest) || !CONSP (spec = XCAR (rest)))
|
|
0
|
1178 {
|
|
|
1179 maybe_signal_simple_error ("Invalid specification list", spec_list,
|
|
|
1180 Qspecifier, errb);
|
|
|
1181 return Qnil;
|
|
|
1182 }
|
|
272
|
1183 if (NILP (Fvalid_specifier_locale_p (locale = XCAR (spec))))
|
|
0
|
1184 {
|
|
272
|
1185 maybe_signal_simple_error ("Invalid specifier locale", locale,
|
|
0
|
1186 Qspecifier, errb);
|
|
|
1187 return Qnil;
|
|
|
1188 }
|
|
|
1189
|
|
272
|
1190 if (NILP (check_valid_inst_list (XCDR (spec), meths, errb)))
|
|
0
|
1191 return Qnil;
|
|
|
1192 }
|
|
|
1193
|
|
|
1194 return Qt;
|
|
|
1195 }
|
|
|
1196
|
|
20
|
1197 DEFUN ("check-valid-spec-list", Fcheck_valid_spec_list, 2, 2, 0, /*
|
|
0
|
1198 Signal an error if SPEC-LIST is invalid for specifier type TYPE.
|
|
20
|
1199 */
|
|
|
1200 (spec_list, type))
|
|
0
|
1201 {
|
|
|
1202 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
1203
|
|
|
1204 return check_valid_spec_list (spec_list, meths, ERROR_ME);
|
|
|
1205 }
|
|
|
1206
|
|
20
|
1207 DEFUN ("valid-spec-list-p", Fvalid_spec_list_p, 2, 2, 0, /*
|
|
0
|
1208 Return non-nil if SPEC-LIST is valid for specifier type TYPE.
|
|
20
|
1209 */
|
|
|
1210 (spec_list, type))
|
|
0
|
1211 {
|
|
|
1212 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
1213
|
|
|
1214 return check_valid_spec_list (spec_list, meths, ERROR_ME_NOT);
|
|
|
1215 }
|
|
|
1216
|
|
|
1217 enum spec_add_meth
|
|
|
1218 decode_how_to_add_specification (Lisp_Object how_to_add)
|
|
|
1219 {
|
|
|
1220 if (NILP (how_to_add) || EQ (Qremove_tag_set_prepend, how_to_add))
|
|
185
|
1221 return SPEC_REMOVE_TAG_SET_PREPEND;
|
|
|
1222 if (EQ (Qremove_tag_set_append, how_to_add))
|
|
|
1223 return SPEC_REMOVE_TAG_SET_APPEND;
|
|
|
1224 if (EQ (Qappend, how_to_add))
|
|
|
1225 return SPEC_APPEND;
|
|
|
1226 if (EQ (Qprepend, how_to_add))
|
|
|
1227 return SPEC_PREPEND;
|
|
|
1228 if (EQ (Qremove_locale, how_to_add))
|
|
|
1229 return SPEC_REMOVE_LOCALE;
|
|
|
1230 if (EQ (Qremove_locale_type, how_to_add))
|
|
|
1231 return SPEC_REMOVE_LOCALE_TYPE;
|
|
|
1232 if (EQ (Qremove_all, how_to_add))
|
|
|
1233 return SPEC_REMOVE_ALL;
|
|
|
1234
|
|
|
1235 signal_simple_error ("Invalid `how-to-add' flag", how_to_add);
|
|
|
1236
|
|
|
1237 return SPEC_PREPEND; /* not reached */
|
|
0
|
1238 }
|
|
|
1239
|
|
276
|
1240 /* Given a specifier object SPEC, return its bodily specifier for a
|
|
|
1241 ghost specifier, otherwise return the object itself
|
|
|
1242 */
|
|
|
1243 static Lisp_Object
|
|
|
1244 bodily_specifier (Lisp_Object spec)
|
|
|
1245 {
|
|
|
1246 return (GHOST_SPECIFIER_P (XSPECIFIER (spec))
|
|
|
1247 ? XSPECIFIER(spec)->magic_parent : spec);
|
|
|
1248 }
|
|
|
1249
|
|
|
1250 /* Given a specifier object SPEC, return a specifier to be operated on
|
|
|
1251 by external lisp function. This is a ghost specifier for a magic
|
|
|
1252 specifier when and only when Vreveal_ghoste_specifiers is non-nil,
|
|
|
1253 otherwise SPEC itself.
|
|
|
1254 */
|
|
|
1255 static Lisp_Object
|
|
|
1256 maybe_ghost_specifier (Lisp_Object spec)
|
|
|
1257 {
|
|
|
1258 return (!NILP (Vreveal_ghoste_specifiers)
|
|
|
1259 && BODILY_SPECIFIER_P (XSPECIFIER (spec))
|
|
|
1260 ? XSPECIFIER(spec)->fallback : spec);
|
|
|
1261 }
|
|
|
1262
|
|
|
1263 /* Helper function which unwind protects the value of
|
|
|
1264 Vreveal_ghoste_specifiers, then sets it to non-nil value */
|
|
|
1265
|
|
|
1266 static Lisp_Object
|
|
|
1267 restore_reveal_value (Lisp_Object val)
|
|
|
1268 {
|
|
|
1269 Vreveal_ghoste_specifiers = val;
|
|
|
1270 return val;
|
|
|
1271 }
|
|
|
1272
|
|
|
1273 int
|
|
|
1274 reveal_ghost_specifiers_protected (void)
|
|
|
1275 {
|
|
|
1276 int depth = specpdl_depth ();
|
|
|
1277 record_unwind_protect (restore_reveal_value,
|
|
|
1278 Vreveal_ghoste_specifiers);
|
|
|
1279 Vreveal_ghoste_specifiers = Qt;
|
|
|
1280 return depth;
|
|
|
1281 }
|
|
|
1282
|
|
0
|
1283 /* This gets hit so much that the function call overhead had a
|
|
|
1284 measurable impact (according to Quantify). #### We should figure
|
|
|
1285 out the frequency with which this is called with the various types
|
|
|
1286 and reorder the check accordingly. */
|
|
185
|
1287 #define SPECIFIER_GET_SPEC_LIST(specifier, type) \
|
|
|
1288 (type == LOCALE_GLOBAL ? &(XSPECIFIER (specifier)->global_specs) : \
|
|
|
1289 type == LOCALE_DEVICE ? &(XSPECIFIER (specifier)->device_specs) : \
|
|
|
1290 type == LOCALE_FRAME ? &(XSPECIFIER (specifier)->frame_specs) : \
|
|
|
1291 type == LOCALE_WINDOW ? &(XWEAK_LIST_LIST \
|
|
|
1292 (XSPECIFIER (specifier)->window_specs)) : \
|
|
|
1293 type == LOCALE_BUFFER ? &(XSPECIFIER (specifier)->buffer_specs) : \
|
|
|
1294 0)
|
|
173
|
1295
|
|
0
|
1296 static Lisp_Object *
|
|
|
1297 specifier_get_inst_list (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1298 enum spec_locale_type type)
|
|
|
1299 {
|
|
|
1300 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1301 Lisp_Object specification;
|
|
|
1302
|
|
|
1303 if (type == LOCALE_GLOBAL)
|
|
|
1304 return spec_list;
|
|
|
1305 /* Calling assq_no_quit when it is just going to return nil anyhow
|
|
|
1306 is extremely expensive. So sayeth Quantify. */
|
|
|
1307 if (!CONSP (*spec_list))
|
|
|
1308 return 0;
|
|
|
1309 specification = assq_no_quit (locale, *spec_list);
|
|
|
1310 if (NILP (specification))
|
|
|
1311 return 0;
|
|
|
1312 return &XCDR (specification);
|
|
|
1313 }
|
|
|
1314
|
|
|
1315 /* For the given INST_LIST, return a new INST_LIST containing all elements
|
|
|
1316 where TAG-SET matches the element's tag set. EXACT_P indicates whether
|
|
|
1317 the match must be exact (as opposed to a subset). SHORT_P indicates
|
|
|
1318 that the short form (for `specifier-specs') should be returned if
|
|
|
1319 possible. If COPY_TREE_P, `copy-tree' is used to ensure that no
|
|
|
1320 elements of the new list are shared with the initial list.
|
|
|
1321 */
|
|
|
1322
|
|
|
1323 static Lisp_Object
|
|
|
1324 specifier_process_inst_list (Lisp_Object inst_list,
|
|
|
1325 Lisp_Object tag_set, int exact_p,
|
|
|
1326 int short_p, int copy_tree_p)
|
|
|
1327 {
|
|
|
1328 Lisp_Object retval = Qnil;
|
|
|
1329 Lisp_Object rest;
|
|
|
1330 struct gcpro gcpro1;
|
|
|
1331
|
|
|
1332 GCPRO1 (retval);
|
|
|
1333 LIST_LOOP (rest, inst_list)
|
|
|
1334 {
|
|
|
1335 Lisp_Object tagged_inst = XCAR (rest);
|
|
|
1336 Lisp_Object tagged_inst_tag = XCAR (tagged_inst);
|
|
|
1337 if (tag_sets_match_p (tag_set, tagged_inst_tag, exact_p))
|
|
|
1338 {
|
|
|
1339 if (short_p && NILP (tagged_inst_tag))
|
|
|
1340 retval = Fcons (copy_tree_p ?
|
|
|
1341 Fcopy_tree (XCDR (tagged_inst), Qt) :
|
|
|
1342 XCDR (tagged_inst),
|
|
|
1343 retval);
|
|
|
1344 else
|
|
|
1345 retval = Fcons (copy_tree_p ? Fcopy_tree (tagged_inst, Qt) :
|
|
|
1346 tagged_inst, retval);
|
|
|
1347 }
|
|
|
1348 }
|
|
|
1349 retval = Fnreverse (retval);
|
|
|
1350 UNGCPRO;
|
|
|
1351 /* If there is a single instantiator and the short form is
|
|
|
1352 requested, return just the instantiator (rather than a one-element
|
|
|
1353 list of it) unless it is nil (so that it can be distinguished from
|
|
|
1354 no instantiators at all). */
|
|
|
1355 if (short_p && CONSP (retval) && !NILP (XCAR (retval)) &&
|
|
|
1356 NILP (XCDR (retval)))
|
|
|
1357 return XCAR (retval);
|
|
|
1358 else
|
|
|
1359 return retval;
|
|
|
1360 }
|
|
|
1361
|
|
|
1362 static Lisp_Object
|
|
|
1363 specifier_get_external_inst_list (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1364 enum spec_locale_type type,
|
|
|
1365 Lisp_Object tag_set, int exact_p,
|
|
|
1366 int short_p, int copy_tree_p)
|
|
|
1367 {
|
|
|
1368 Lisp_Object *inst_list = specifier_get_inst_list (specifier, locale,
|
|
|
1369 type);
|
|
|
1370 if (!inst_list || NILP (*inst_list))
|
|
|
1371 {
|
|
|
1372 /* nil for *inst_list should only occur in 'global */
|
|
|
1373 assert (!inst_list || EQ (locale, Qglobal));
|
|
|
1374 return Qnil;
|
|
|
1375 }
|
|
|
1376
|
|
|
1377 return specifier_process_inst_list (*inst_list, tag_set, exact_p,
|
|
|
1378 short_p, copy_tree_p);
|
|
|
1379 }
|
|
|
1380
|
|
|
1381 static Lisp_Object
|
|
|
1382 specifier_get_external_spec_list (Lisp_Object specifier,
|
|
|
1383 enum spec_locale_type type,
|
|
|
1384 Lisp_Object tag_set, int exact_p)
|
|
|
1385 {
|
|
|
1386 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1387 Lisp_Object retval = Qnil;
|
|
|
1388 Lisp_Object rest;
|
|
|
1389 struct gcpro gcpro1;
|
|
|
1390
|
|
|
1391 assert (type != LOCALE_GLOBAL);
|
|
|
1392 /* We're about to let stuff go external; make sure there aren't
|
|
|
1393 any dead objects */
|
|
|
1394 *spec_list = cleanup_assoc_list (*spec_list);
|
|
|
1395
|
|
|
1396 GCPRO1 (retval);
|
|
|
1397 LIST_LOOP (rest, *spec_list)
|
|
|
1398 {
|
|
|
1399 Lisp_Object spec = XCAR (rest);
|
|
|
1400 Lisp_Object inst_list =
|
|
|
1401 specifier_process_inst_list (XCDR (spec), tag_set, exact_p, 0, 1);
|
|
|
1402 if (!NILP (inst_list))
|
|
|
1403 retval = Fcons (Fcons (XCAR (spec), inst_list), retval);
|
|
|
1404 }
|
|
|
1405 RETURN_UNGCPRO (Fnreverse (retval));
|
|
|
1406 }
|
|
|
1407
|
|
|
1408 static Lisp_Object *
|
|
|
1409 specifier_new_spec (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1410 enum spec_locale_type type)
|
|
|
1411 {
|
|
|
1412 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1413 Lisp_Object new_spec = Fcons (locale, Qnil);
|
|
|
1414 assert (type != LOCALE_GLOBAL);
|
|
|
1415 *spec_list = Fcons (new_spec, *spec_list);
|
|
|
1416 return &XCDR (new_spec);
|
|
|
1417 }
|
|
|
1418
|
|
|
1419 /* For the given INST_LIST, return a new list comprised of elements
|
|
|
1420 where TAG_SET does not match the element's tag set. This operation
|
|
|
1421 is destructive. */
|
|
|
1422
|
|
|
1423 static Lisp_Object
|
|
|
1424 specifier_process_remove_inst_list (Lisp_Object inst_list,
|
|
|
1425 Lisp_Object tag_set, int exact_p,
|
|
|
1426 int *was_removed)
|
|
|
1427 {
|
|
|
1428 Lisp_Object prev = Qnil, rest;
|
|
|
1429
|
|
|
1430 *was_removed = 0;
|
|
|
1431
|
|
|
1432 LIST_LOOP (rest, inst_list)
|
|
|
1433 {
|
|
|
1434 if (tag_sets_match_p (tag_set, XCAR (XCAR (rest)), exact_p))
|
|
|
1435 {
|
|
|
1436 /* time to remove. */
|
|
|
1437 *was_removed = 1;
|
|
|
1438 if (NILP (prev))
|
|
|
1439 inst_list = XCDR (rest);
|
|
|
1440 else
|
|
|
1441 XCDR (prev) = XCDR (rest);
|
|
|
1442 }
|
|
|
1443 else
|
|
|
1444 prev = rest;
|
|
|
1445 }
|
|
|
1446
|
|
|
1447 return inst_list;
|
|
|
1448 }
|
|
|
1449
|
|
|
1450 static void
|
|
|
1451 specifier_remove_spec (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1452 enum spec_locale_type type,
|
|
|
1453 Lisp_Object tag_set, int exact_p)
|
|
|
1454 {
|
|
|
1455 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1456 Lisp_Object assoc;
|
|
|
1457 int was_removed;
|
|
|
1458
|
|
|
1459 if (type == LOCALE_GLOBAL)
|
|
|
1460 *spec_list = specifier_process_remove_inst_list (*spec_list, tag_set,
|
|
|
1461 exact_p, &was_removed);
|
|
|
1462 else
|
|
|
1463 {
|
|
|
1464 assoc = assq_no_quit (locale, *spec_list);
|
|
|
1465 if (NILP (assoc))
|
|
|
1466 /* this locale is not found. */
|
|
|
1467 return;
|
|
|
1468 XCDR (assoc) = specifier_process_remove_inst_list (XCDR (assoc),
|
|
|
1469 tag_set, exact_p,
|
|
|
1470 &was_removed);
|
|
|
1471 if (NILP (XCDR (assoc)))
|
|
|
1472 /* no inst-pairs left; remove this locale entirely. */
|
|
|
1473 *spec_list = remassq_no_quit (locale, *spec_list);
|
|
|
1474 }
|
|
173
|
1475
|
|
0
|
1476 if (was_removed)
|
|
276
|
1477 MAYBE_SPECMETH (XSPECIFIER (specifier), after_change,
|
|
|
1478 (bodily_specifier (specifier), locale));
|
|
0
|
1479 }
|
|
|
1480
|
|
|
1481 static void
|
|
|
1482 specifier_remove_locale_type (Lisp_Object specifier,
|
|
|
1483 enum spec_locale_type type,
|
|
|
1484 Lisp_Object tag_set, int exact_p)
|
|
|
1485 {
|
|
|
1486 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1487 Lisp_Object prev = Qnil, rest;
|
|
|
1488
|
|
|
1489 assert (type != LOCALE_GLOBAL);
|
|
|
1490 LIST_LOOP (rest, *spec_list)
|
|
|
1491 {
|
|
|
1492 int was_removed;
|
|
|
1493 int remove_spec = 0;
|
|
|
1494 Lisp_Object spec = XCAR (rest);
|
|
173
|
1495
|
|
0
|
1496 /* There may be dead objects floating around */
|
|
|
1497 /* remember, dead windows can become alive again. */
|
|
|
1498 if (!WINDOWP (XCAR (spec)) && object_dead_p (XCAR (spec)))
|
|
|
1499 {
|
|
|
1500 remove_spec = 1;
|
|
|
1501 was_removed = 0;
|
|
|
1502 }
|
|
|
1503 else
|
|
|
1504 {
|
|
|
1505 XCDR (spec) = specifier_process_remove_inst_list (XCDR (spec),
|
|
|
1506 tag_set, exact_p,
|
|
|
1507 &was_removed);
|
|
|
1508 if (NILP (XCDR (spec)))
|
|
|
1509 remove_spec = 1;
|
|
|
1510 }
|
|
|
1511
|
|
|
1512 if (remove_spec)
|
|
|
1513 {
|
|
|
1514 if (NILP (prev))
|
|
|
1515 *spec_list = XCDR (rest);
|
|
|
1516 else
|
|
|
1517 XCDR (prev) = XCDR (rest);
|
|
|
1518 }
|
|
|
1519 else
|
|
|
1520 prev = rest;
|
|
|
1521
|
|
|
1522 if (was_removed)
|
|
|
1523 MAYBE_SPECMETH (XSPECIFIER (specifier), after_change,
|
|
276
|
1524 (bodily_specifier (specifier), XCAR (spec)));
|
|
0
|
1525 }
|
|
|
1526 }
|
|
|
1527
|
|
|
1528 /* NEW_LIST is going to be added to INST_LIST, with add method ADD_METH.
|
|
|
1529 Frob INST_LIST according to ADD_METH. No need to call an after-change
|
|
|
1530 function; the calling function will do this. Return either SPEC_PREPEND
|
|
|
1531 or SPEC_APPEND, indicating whether to prepend or append the NEW_LIST. */
|
|
|
1532
|
|
|
1533 static enum spec_add_meth
|
|
|
1534 handle_multiple_add_insts (Lisp_Object *inst_list,
|
|
|
1535 Lisp_Object new_list,
|
|
|
1536 enum spec_add_meth add_meth)
|
|
|
1537 {
|
|
272
|
1538 switch (add_meth)
|
|
0
|
1539 {
|
|
272
|
1540 case SPEC_REMOVE_TAG_SET_APPEND:
|
|
|
1541 add_meth = SPEC_APPEND;
|
|
|
1542 goto remove_tag_set;
|
|
|
1543 case SPEC_REMOVE_TAG_SET_PREPEND:
|
|
|
1544 add_meth = SPEC_PREPEND;
|
|
|
1545 remove_tag_set:
|
|
|
1546 {
|
|
|
1547 Lisp_Object rest;
|
|
|
1548
|
|
|
1549 LIST_LOOP (rest, new_list)
|
|
|
1550 {
|
|
|
1551 Lisp_Object canontag = canonicalize_tag_set (XCAR (XCAR (rest)));
|
|
|
1552 struct gcpro gcpro1;
|
|
|
1553
|
|
|
1554 GCPRO1 (canontag);
|
|
|
1555 /* pull out all elements from the existing list with the
|
|
|
1556 same tag as any tags in NEW_LIST. */
|
|
|
1557 *inst_list = remassoc_no_quit (canontag, *inst_list);
|
|
|
1558 UNGCPRO;
|
|
|
1559 }
|
|
|
1560 }
|
|
|
1561 return add_meth;
|
|
|
1562 case SPEC_REMOVE_LOCALE:
|
|
0
|
1563 *inst_list = Qnil;
|
|
|
1564 return SPEC_PREPEND;
|
|
272
|
1565 case SPEC_APPEND:
|
|
|
1566 return add_meth;
|
|
|
1567 default:
|
|
|
1568 return SPEC_PREPEND;
|
|
0
|
1569 }
|
|
|
1570 }
|
|
|
1571
|
|
|
1572 /* Given a LOCALE and INST_LIST that is going to be added to SPECIFIER,
|
|
|
1573 copy, canonicalize, and call the going_to_add methods as necessary
|
|
|
1574 to produce a new list that is the one that really will be added
|
|
|
1575 to the specifier. */
|
|
|
1576
|
|
|
1577 static Lisp_Object
|
|
|
1578 build_up_processed_list (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1579 Lisp_Object inst_list)
|
|
|
1580 {
|
|
|
1581 /* The return value of this function must be GCPRO'd. */
|
|
|
1582 Lisp_Object rest, list_to_build_up = Qnil;
|
|
272
|
1583 struct Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
0
|
1584 struct gcpro gcpro1;
|
|
|
1585
|
|
|
1586 GCPRO1 (list_to_build_up);
|
|
|
1587 LIST_LOOP (rest, inst_list)
|
|
|
1588 {
|
|
|
1589 Lisp_Object tag_set = XCAR (XCAR (rest));
|
|
|
1590 Lisp_Object instantiator = Fcopy_tree (XCDR (XCAR (rest)), Qt);
|
|
|
1591 Lisp_Object sub_inst_list = Qnil;
|
|
|
1592 struct gcpro ngcpro1, ngcpro2;
|
|
|
1593
|
|
|
1594 NGCPRO2 (instantiator, sub_inst_list);
|
|
|
1595 /* call the will-add method; it may GC */
|
|
272
|
1596 sub_inst_list = HAS_SPECMETH_P (sp, going_to_add) ?
|
|
|
1597 SPECMETH (sp, going_to_add,
|
|
276
|
1598 (bodily_specifier (specifier), locale,
|
|
|
1599 tag_set, instantiator)) :
|
|
272
|
1600 Qt;
|
|
0
|
1601 if (EQ (sub_inst_list, Qt))
|
|
|
1602 /* no change here. */
|
|
|
1603 sub_inst_list = list1 (Fcons (canonicalize_tag_set (tag_set),
|
|
|
1604 instantiator));
|
|
|
1605 else
|
|
|
1606 {
|
|
|
1607 /* now canonicalize all the tag sets in the new objects */
|
|
|
1608 Lisp_Object rest2;
|
|
|
1609 LIST_LOOP (rest2, sub_inst_list)
|
|
|
1610 XCAR (XCAR (rest2)) = canonicalize_tag_set (XCAR (XCAR (rest2)));
|
|
|
1611 }
|
|
|
1612
|
|
|
1613 list_to_build_up = nconc2 (sub_inst_list, list_to_build_up);
|
|
|
1614 NUNGCPRO;
|
|
|
1615 }
|
|
|
1616
|
|
|
1617 RETURN_UNGCPRO (Fnreverse (list_to_build_up));
|
|
|
1618 }
|
|
|
1619
|
|
|
1620 /* Add a specification (locale and instantiator list) to a specifier.
|
|
|
1621 ADD_METH specifies what to do with existing specifications in the
|
|
|
1622 specifier, and is an enum that corresponds to the values in
|
|
|
1623 `add-spec-to-specifier'. The calling routine is responsible for
|
|
|
1624 validating LOCALE and INST-LIST, but the tag-sets in INST-LIST
|
|
|
1625 do not need to be canonicalized. */
|
|
|
1626
|
|
|
1627 /* #### I really need to rethink the after-change
|
|
|
1628 functions to make them easier to use and more efficient. */
|
|
|
1629
|
|
|
1630 static void
|
|
|
1631 specifier_add_spec (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1632 Lisp_Object inst_list, enum spec_add_meth add_meth)
|
|
|
1633 {
|
|
|
1634 struct Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
272
|
1635 enum spec_locale_type type = locale_type_from_locale (locale);
|
|
|
1636 Lisp_Object *orig_inst_list, tem;
|
|
0
|
1637 Lisp_Object list_to_build_up = Qnil;
|
|
|
1638 struct gcpro gcpro1;
|
|
|
1639
|
|
|
1640 GCPRO1 (list_to_build_up);
|
|
|
1641 list_to_build_up = build_up_processed_list (specifier, locale, inst_list);
|
|
|
1642 /* Now handle REMOVE_LOCALE_TYPE and REMOVE_ALL. These are the
|
|
|
1643 add-meth types that affect locales other than this one. */
|
|
|
1644 if (add_meth == SPEC_REMOVE_LOCALE_TYPE)
|
|
|
1645 specifier_remove_locale_type (specifier, type, Qnil, 0);
|
|
|
1646 else if (add_meth == SPEC_REMOVE_ALL)
|
|
|
1647 {
|
|
|
1648 specifier_remove_locale_type (specifier, LOCALE_BUFFER, Qnil, 0);
|
|
|
1649 specifier_remove_locale_type (specifier, LOCALE_WINDOW, Qnil, 0);
|
|
272
|
1650 specifier_remove_locale_type (specifier, LOCALE_FRAME, Qnil, 0);
|
|
0
|
1651 specifier_remove_locale_type (specifier, LOCALE_DEVICE, Qnil, 0);
|
|
|
1652 specifier_remove_spec (specifier, Qglobal, LOCALE_GLOBAL, Qnil, 0);
|
|
|
1653 }
|
|
|
1654
|
|
|
1655 orig_inst_list = specifier_get_inst_list (specifier, locale, type);
|
|
|
1656 if (!orig_inst_list)
|
|
|
1657 orig_inst_list = specifier_new_spec (specifier, locale, type);
|
|
|
1658 add_meth = handle_multiple_add_insts (orig_inst_list, list_to_build_up,
|
|
|
1659 add_meth);
|
|
|
1660
|
|
|
1661 if (add_meth == SPEC_PREPEND)
|
|
272
|
1662 tem = nconc2 (list_to_build_up, *orig_inst_list);
|
|
0
|
1663 else if (add_meth == SPEC_APPEND)
|
|
272
|
1664 tem = nconc2 (*orig_inst_list, list_to_build_up);
|
|
0
|
1665 else
|
|
|
1666 abort ();
|
|
173
|
1667
|
|
272
|
1668 *orig_inst_list = tem;
|
|
|
1669
|
|
0
|
1670 UNGCPRO;
|
|
|
1671
|
|
|
1672 /* call the after-change method */
|
|
276
|
1673 MAYBE_SPECMETH (sp, after_change,
|
|
|
1674 (bodily_specifier (specifier), locale));
|
|
0
|
1675 }
|
|
|
1676
|
|
|
1677 static void
|
|
|
1678 specifier_copy_spec (Lisp_Object specifier, Lisp_Object dest,
|
|
|
1679 Lisp_Object locale, enum spec_locale_type type,
|
|
|
1680 Lisp_Object tag_set, int exact_p,
|
|
|
1681 enum spec_add_meth add_meth)
|
|
|
1682 {
|
|
|
1683 Lisp_Object inst_list =
|
|
|
1684 specifier_get_external_inst_list (specifier, locale, type, tag_set,
|
|
|
1685 exact_p, 0, 0);
|
|
|
1686 specifier_add_spec (dest, locale, inst_list, add_meth);
|
|
|
1687 }
|
|
|
1688
|
|
|
1689 static void
|
|
|
1690 specifier_copy_locale_type (Lisp_Object specifier, Lisp_Object dest,
|
|
|
1691 enum spec_locale_type type,
|
|
|
1692 Lisp_Object tag_set, int exact_p,
|
|
|
1693 enum spec_add_meth add_meth)
|
|
|
1694 {
|
|
|
1695 Lisp_Object *src_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1696 Lisp_Object rest;
|
|
|
1697
|
|
|
1698 /* This algorithm is O(n^2) in running time.
|
|
|
1699 It's certainly possible to implement an O(n log n) algorithm,
|
|
|
1700 but I doubt there's any need to. */
|
|
173
|
1701
|
|
0
|
1702 LIST_LOOP (rest, *src_list)
|
|
|
1703 {
|
|
|
1704 Lisp_Object spec = XCAR (rest);
|
|
|
1705 /* There may be dead objects floating around */
|
|
|
1706 /* remember, dead windows can become alive again. */
|
|
|
1707 if (WINDOWP (XCAR (spec)) || !object_dead_p (XCAR (spec)))
|
|
|
1708 specifier_add_spec
|
|
|
1709 (dest, XCAR (spec),
|
|
|
1710 specifier_process_inst_list (XCDR (spec), tag_set, exact_p, 0, 0),
|
|
|
1711 add_meth);
|
|
|
1712 }
|
|
173
|
1713 }
|
|
0
|
1714
|
|
|
1715 /* map MAPFUN over the locales in SPECIFIER that are given in LOCALE.
|
|
|
1716 CLOSURE is passed unchanged to MAPFUN. LOCALE can be one of
|
|
|
1717
|
|
|
1718 -- nil (same as 'all)
|
|
|
1719 -- a single locale, locale type, or 'all
|
|
|
1720 -- a list of locales, locale types, and/or 'all
|
|
|
1721
|
|
|
1722 MAPFUN is called for each locale and locale type given; for 'all,
|
|
|
1723 it is called for the locale 'global and for the four possible
|
|
|
1724 locale types. In each invocation, either LOCALE will be a locale
|
|
|
1725 and LOCALE_TYPE will be the locale type of this locale,
|
|
|
1726 or LOCALE will be nil and LOCALE_TYPE will be a locale type.
|
|
|
1727 If MAPFUN ever returns non-zero, the mapping is halted and the
|
|
|
1728 value returned is returned from map_specifier(). Otherwise, the
|
|
|
1729 mapping proceeds to the end and map_specifier() returns 0.
|
|
|
1730 */
|
|
|
1731
|
|
|
1732 static int
|
|
|
1733 map_specifier (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1734 int (*mapfun) (Lisp_Object specifier,
|
|
|
1735 Lisp_Object locale,
|
|
|
1736 enum spec_locale_type locale_type,
|
|
|
1737 Lisp_Object tag_set,
|
|
|
1738 int exact_p,
|
|
|
1739 void *closure),
|
|
|
1740 Lisp_Object tag_set, Lisp_Object exact_p,
|
|
|
1741 void *closure)
|
|
|
1742 {
|
|
|
1743 int retval = 0;
|
|
|
1744 Lisp_Object rest;
|
|
|
1745 struct gcpro gcpro1, gcpro2;
|
|
|
1746
|
|
|
1747 GCPRO2 (tag_set, locale);
|
|
|
1748 locale = decode_locale_list (locale);
|
|
|
1749 tag_set = decode_specifier_tag_set (tag_set);
|
|
|
1750 tag_set = canonicalize_tag_set (tag_set);
|
|
|
1751
|
|
|
1752 LIST_LOOP (rest, locale)
|
|
|
1753 {
|
|
|
1754 Lisp_Object theloc = XCAR (rest);
|
|
|
1755 if (!NILP (Fvalid_specifier_locale_p (theloc)))
|
|
|
1756 {
|
|
|
1757 retval = (*mapfun) (specifier, theloc,
|
|
|
1758 locale_type_from_locale (theloc),
|
|
|
1759 tag_set, !NILP (exact_p), closure);
|
|
|
1760 if (retval)
|
|
|
1761 break;
|
|
|
1762 }
|
|
|
1763 else if (!NILP (Fvalid_specifier_locale_type_p (theloc)))
|
|
|
1764 {
|
|
|
1765 retval = (*mapfun) (specifier, Qnil,
|
|
|
1766 decode_locale_type (theloc), tag_set,
|
|
|
1767 !NILP (exact_p), closure);
|
|
|
1768 if (retval)
|
|
|
1769 break;
|
|
|
1770 }
|
|
|
1771 else
|
|
|
1772 {
|
|
|
1773 assert (EQ (theloc, Qall));
|
|
|
1774 retval = (*mapfun) (specifier, Qnil, LOCALE_BUFFER, tag_set,
|
|
|
1775 !NILP (exact_p), closure);
|
|
|
1776 if (retval)
|
|
|
1777 break;
|
|
|
1778 retval = (*mapfun) (specifier, Qnil, LOCALE_WINDOW, tag_set,
|
|
|
1779 !NILP (exact_p), closure);
|
|
|
1780 if (retval)
|
|
|
1781 break;
|
|
|
1782 retval = (*mapfun) (specifier, Qnil, LOCALE_FRAME, tag_set,
|
|
|
1783 !NILP (exact_p), closure);
|
|
|
1784 if (retval)
|
|
|
1785 break;
|
|
|
1786 retval = (*mapfun) (specifier, Qnil, LOCALE_DEVICE, tag_set,
|
|
|
1787 !NILP (exact_p), closure);
|
|
|
1788 if (retval)
|
|
|
1789 break;
|
|
|
1790 retval = (*mapfun) (specifier, Qglobal, LOCALE_GLOBAL, tag_set,
|
|
|
1791 !NILP (exact_p), closure);
|
|
|
1792 if (retval)
|
|
|
1793 break;
|
|
|
1794 }
|
|
|
1795 }
|
|
|
1796
|
|
|
1797 UNGCPRO;
|
|
|
1798 return retval;
|
|
|
1799 }
|
|
|
1800
|
|
20
|
1801 DEFUN ("add-spec-to-specifier", Fadd_spec_to_specifier, 2, 5, 0, /*
|
|
0
|
1802 Add a specification to SPECIFIER.
|
|
|
1803 The specification maps from LOCALE (which should be a buffer, window,
|
|
|
1804 frame, device, or 'global, and defaults to 'global) to INSTANTIATOR,
|
|
|
1805 whose allowed values depend on the type of the specifier. Optional
|
|
|
1806 argument TAG-SET limits the instantiator to apply only to the specified
|
|
|
1807 tag set, which should be a list of tags all of which must match the
|
|
|
1808 device being instantiated over (tags are a device type, a device class,
|
|
|
1809 or tags defined with `define-specifier-tag'). Specifying a single
|
|
|
1810 symbol for TAG-SET is equivalent to specifying a one-element list
|
|
|
1811 containing that symbol. Optional argument HOW-TO-ADD specifies what to
|
|
|
1812 do if there are already specifications in the specifier.
|
|
|
1813 It should be one of
|
|
|
1814
|
|
|
1815 'prepend Put at the beginning of the current list of
|
|
|
1816 instantiators for LOCALE.
|
|
|
1817 'append Add to the end of the current list of
|
|
|
1818 instantiators for LOCALE.
|
|
|
1819 'remove-tag-set-prepend (this is the default)
|
|
|
1820 Remove any existing instantiators whose tag set is
|
|
|
1821 the same as TAG-SET; then put the new instantiator
|
|
185
|
1822 at the beginning of the current list. ("Same tag
|
|
|
1823 set" means that they contain the same elements.
|
|
0
|
1824 The order may be different.)
|
|
|
1825 'remove-tag-set-append
|
|
|
1826 Remove any existing instantiators whose tag set is
|
|
|
1827 the same as TAG-SET; then put the new instantiator
|
|
|
1828 at the end of the current list.
|
|
|
1829 'remove-locale Remove all previous instantiators for this locale
|
|
|
1830 before adding the new spec.
|
|
|
1831 'remove-locale-type Remove all specifications for all locales of the
|
|
|
1832 same type as LOCALE (this includes LOCALE itself)
|
|
|
1833 before adding the new spec.
|
|
|
1834 'remove-all Remove all specifications from the specifier
|
|
|
1835 before adding the new spec.
|
|
|
1836
|
|
|
1837 You can retrieve the specifications for a particular locale or locale type
|
|
|
1838 with the function `specifier-spec-list' or `specifier-specs'.
|
|
20
|
1839 */
|
|
|
1840 (specifier, instantiator, locale, tag_set, how_to_add))
|
|
0
|
1841 {
|
|
|
1842 enum spec_add_meth add_meth;
|
|
|
1843 Lisp_Object inst_list;
|
|
|
1844 struct gcpro gcpro1;
|
|
|
1845
|
|
|
1846 CHECK_SPECIFIER (specifier);
|
|
|
1847 locale = decode_locale (locale);
|
|
|
1848 check_valid_instantiator (instantiator,
|
|
|
1849 decode_specifier_type
|
|
|
1850 (Fspecifier_type (specifier), ERROR_ME),
|
|
|
1851 ERROR_ME);
|
|
|
1852 /* tag_set might be newly-created material, but it's part of inst_list
|
|
|
1853 so is properly GC-protected. */
|
|
|
1854 tag_set = decode_specifier_tag_set (tag_set);
|
|
|
1855 add_meth = decode_how_to_add_specification (how_to_add);
|
|
|
1856
|
|
|
1857 inst_list = list1 (Fcons (tag_set, instantiator));
|
|
|
1858 GCPRO1 (inst_list);
|
|
276
|
1859 specifier_add_spec (maybe_ghost_specifier (specifier),
|
|
|
1860 locale, inst_list, add_meth);
|
|
0
|
1861 recompute_cached_specifier_everywhere (specifier);
|
|
|
1862 RETURN_UNGCPRO (Qnil);
|
|
|
1863 }
|
|
|
1864
|
|
20
|
1865 DEFUN ("add-spec-list-to-specifier", Fadd_spec_list_to_specifier, 2, 3, 0, /*
|
|
0
|
1866 Add a spec-list (a list of specifications) to SPECIFIER.
|
|
|
1867 The format of a spec-list is
|
|
|
1868
|
|
|
1869 ((LOCALE (TAG-SET . INSTANTIATOR) ...) ...)
|
|
|
1870
|
|
|
1871 where
|
|
|
1872 LOCALE := a buffer, a window, a frame, a device, or 'global
|
|
|
1873 TAG-SET := an unordered list of zero or more TAGS, each of which
|
|
|
1874 is a symbol
|
|
|
1875 TAG := a device class (see `valid-device-class-p'), a device type
|
|
|
1876 (see `valid-console-type-p'), or a tag defined with
|
|
|
1877 `define-specifier-tag'
|
|
|
1878 INSTANTIATOR := format determined by the type of specifier
|
|
|
1879
|
|
|
1880 The pair (TAG-SET . INSTANTIATOR) is called an `inst-pair'.
|
|
|
1881 A list of inst-pairs is called an `inst-list'.
|
|
|
1882 The pair (LOCALE . INST-LIST) is called a `specification' or `spec'.
|
|
|
1883 A spec-list, then, can be viewed as a list of specifications.
|
|
|
1884
|
|
|
1885 HOW-TO-ADD specifies how to combine the new specifications with
|
|
|
1886 the existing ones, and has the same semantics as for
|
|
|
1887 `add-spec-to-specifier'.
|
|
|
1888
|
|
|
1889 In many circumstances, the higher-level function `set-specifier' is
|
|
|
1890 more convenient and should be used instead.
|
|
20
|
1891 */
|
|
|
1892 (specifier, spec_list, how_to_add))
|
|
0
|
1893 {
|
|
|
1894 enum spec_add_meth add_meth;
|
|
|
1895 Lisp_Object rest;
|
|
|
1896
|
|
|
1897 CHECK_SPECIFIER (specifier);
|
|
|
1898 check_valid_spec_list (spec_list,
|
|
|
1899 decode_specifier_type
|
|
|
1900 (Fspecifier_type (specifier), ERROR_ME),
|
|
|
1901 ERROR_ME);
|
|
|
1902 add_meth = decode_how_to_add_specification (how_to_add);
|
|
|
1903
|
|
|
1904 LIST_LOOP (rest, spec_list)
|
|
|
1905 {
|
|
|
1906 /* Placating the GCC god. */
|
|
272
|
1907 Lisp_Object specification = XCAR (rest);
|
|
|
1908 Lisp_Object locale = XCAR (specification);
|
|
|
1909 Lisp_Object inst_list = XCDR (specification);
|
|
|
1910
|
|
276
|
1911 specifier_add_spec (maybe_ghost_specifier (specifier),
|
|
|
1912 locale, inst_list, add_meth);
|
|
173
|
1913 }
|
|
0
|
1914 recompute_cached_specifier_everywhere (specifier);
|
|
|
1915 return Qnil;
|
|
|
1916 }
|
|
|
1917
|
|
276
|
1918 void
|
|
|
1919 add_spec_to_ghost_specifier (Lisp_Object specifier, Lisp_Object instantiator,
|
|
|
1920 Lisp_Object locale, Lisp_Object tag_set,
|
|
|
1921 Lisp_Object how_to_add)
|
|
|
1922 {
|
|
|
1923 int depth = reveal_ghost_specifiers_protected ();
|
|
|
1924 Fadd_spec_to_specifier (specifier, instantiator, locale,
|
|
|
1925 tag_set, how_to_add);
|
|
|
1926 unbind_to (depth, Qnil);
|
|
|
1927 }
|
|
|
1928
|
|
0
|
1929 struct specifier_spec_list_closure
|
|
|
1930 {
|
|
|
1931 Lisp_Object head, tail;
|
|
|
1932 };
|
|
|
1933
|
|
|
1934 static int
|
|
|
1935 specifier_spec_list_mapfun (Lisp_Object specifier,
|
|
|
1936 Lisp_Object locale,
|
|
|
1937 enum spec_locale_type locale_type,
|
|
|
1938 Lisp_Object tag_set,
|
|
|
1939 int exact_p,
|
|
|
1940 void *closure)
|
|
|
1941 {
|
|
|
1942 struct specifier_spec_list_closure *cl =
|
|
|
1943 (struct specifier_spec_list_closure *) closure;
|
|
|
1944 Lisp_Object partial;
|
|
|
1945
|
|
|
1946 if (NILP (locale))
|
|
|
1947 partial = specifier_get_external_spec_list (specifier,
|
|
|
1948 locale_type,
|
|
|
1949 tag_set, exact_p);
|
|
|
1950 else
|
|
|
1951 {
|
|
|
1952 partial = specifier_get_external_inst_list (specifier, locale,
|
|
|
1953 locale_type, tag_set,
|
|
|
1954 exact_p, 0, 1);
|
|
|
1955 if (!NILP (partial))
|
|
|
1956 partial = list1 (Fcons (locale, partial));
|
|
|
1957 }
|
|
|
1958 if (NILP (partial))
|
|
|
1959 return 0;
|
|
|
1960
|
|
|
1961 /* tack on the new list */
|
|
|
1962 if (NILP (cl->tail))
|
|
|
1963 cl->head = cl->tail = partial;
|
|
|
1964 else
|
|
|
1965 XCDR (cl->tail) = partial;
|
|
|
1966 /* find the new tail */
|
|
|
1967 while (CONSP (XCDR (cl->tail)))
|
|
|
1968 cl->tail = XCDR (cl->tail);
|
|
|
1969 return 0;
|
|
|
1970 }
|
|
|
1971
|
|
|
1972 /* For the given SPECIFIER create and return a list of all specs
|
|
|
1973 contained within it, subject to LOCALE. If LOCALE is a locale, only
|
|
|
1974 specs in that locale will be returned. If LOCALE is a locale type,
|
|
|
1975 all specs in all locales of that type will be returned. If LOCALE is
|
|
|
1976 nil, all specs will be returned. This always copies lists and never
|
|
|
1977 returns the actual lists, because we do not want someone manipulating
|
|
|
1978 the actual objects. This may cause a slight loss of potential
|
|
|
1979 functionality but if we were to allow it then a user could manage to
|
|
|
1980 violate our assertion that the specs contained in the actual
|
|
|
1981 specifier lists are all valid. */
|
|
|
1982
|
|
20
|
1983 DEFUN ("specifier-spec-list", Fspecifier_spec_list, 1, 4, 0, /*
|
|
0
|
1984 Return the spec-list of specifications for SPECIFIER in LOCALE.
|
|
|
1985
|
|
|
1986 If LOCALE is a particular locale (a buffer, window, frame, device,
|
|
|
1987 or 'global), a spec-list consisting of the specification for that
|
|
|
1988 locale will be returned.
|
|
|
1989
|
|
|
1990 If LOCALE is a locale type (i.e. 'buffer, 'window, 'frame, or 'device),
|
|
|
1991 a spec-list of the specifications for all locales of that type will be
|
|
|
1992 returned.
|
|
|
1993
|
|
|
1994 If LOCALE is nil or 'all, a spec-list of all specifications in SPECIFIER
|
|
|
1995 will be returned.
|
|
|
1996
|
|
|
1997 LOCALE can also be a list of locales, locale types, and/or 'all; the
|
|
|
1998 result is as if `specifier-spec-list' were called on each element of the
|
|
|
1999 list and the results concatenated together.
|
|
|
2000
|
|
|
2001 Only instantiators where TAG-SET (a list of zero or more tags) is a
|
|
|
2002 subset of (or possibly equal to) the instantiator's tag set are returned.
|
|
272
|
2003 \(The default value of nil is a subset of all tag sets, so in this case
|
|
0
|
2004 no instantiators will be screened out.) If EXACT-P is non-nil, however,
|
|
|
2005 TAG-SET must be equal to an instantiator's tag set for the instantiator
|
|
|
2006 to be returned.
|
|
20
|
2007 */
|
|
70
|
2008 (specifier, locale, tag_set, exact_p))
|
|
0
|
2009 {
|
|
|
2010 struct specifier_spec_list_closure cl;
|
|
|
2011 struct gcpro gcpro1, gcpro2;
|
|
|
2012
|
|
|
2013 CHECK_SPECIFIER (specifier);
|
|
|
2014 cl.head = cl.tail = Qnil;
|
|
|
2015 GCPRO2 (cl.head, cl.tail);
|
|
276
|
2016 map_specifier (maybe_ghost_specifier (specifier),
|
|
|
2017 locale, specifier_spec_list_mapfun,
|
|
0
|
2018 tag_set, exact_p, &cl);
|
|
|
2019 UNGCPRO;
|
|
|
2020 return cl.head;
|
|
|
2021 }
|
|
|
2022
|
|
|
2023
|
|
20
|
2024 DEFUN ("specifier-specs", Fspecifier_specs, 1, 4, 0, /*
|
|
0
|
2025 Return the specification(s) for SPECIFIER in LOCALE.
|
|
|
2026
|
|
|
2027 If LOCALE is a single locale or is a list of one element containing a
|
|
185
|
2028 single locale, then a "short form" of the instantiators for that locale
|
|
0
|
2029 will be returned. Otherwise, this function is identical to
|
|
|
2030 `specifier-spec-list'.
|
|
|
2031
|
|
185
|
2032 The "short form" is designed for readability and not for ease of use
|
|
0
|
2033 in Lisp programs, and is as follows:
|
|
|
2034
|
|
|
2035 1. If there is only one instantiator, then an inst-pair (i.e. cons of
|
|
|
2036 tag and instantiator) will be returned; otherwise a list of
|
|
|
2037 inst-pairs will be returned.
|
|
|
2038 2. For each inst-pair returned, if the instantiator's tag is 'any,
|
|
|
2039 the tag will be removed and the instantiator itself will be returned
|
|
|
2040 instead of the inst-pair.
|
|
|
2041 3. If there is only one instantiator, its value is nil, and its tag is
|
|
|
2042 'any, a one-element list containing nil will be returned rather
|
|
|
2043 than just nil, to distinguish this case from there being no
|
|
|
2044 instantiators at all.
|
|
20
|
2045 */
|
|
|
2046 (specifier, locale, tag_set, exact_p))
|
|
0
|
2047 {
|
|
|
2048 if (!NILP (Fvalid_specifier_locale_p (locale)) ||
|
|
|
2049 (CONSP (locale) && !NILP (Fvalid_specifier_locale_p (XCAR (locale))) &&
|
|
|
2050 NILP (XCDR (locale))))
|
|
|
2051 {
|
|
|
2052 struct gcpro gcpro1;
|
|
|
2053
|
|
|
2054 CHECK_SPECIFIER (specifier);
|
|
|
2055 if (CONSP (locale))
|
|
|
2056 locale = XCAR (locale);
|
|
|
2057 GCPRO1 (tag_set);
|
|
|
2058 tag_set = decode_specifier_tag_set (tag_set);
|
|
|
2059 tag_set = canonicalize_tag_set (tag_set);
|
|
|
2060 RETURN_UNGCPRO
|
|
276
|
2061 (specifier_get_external_inst_list (maybe_ghost_specifier (specifier),
|
|
|
2062 locale,
|
|
0
|
2063 locale_type_from_locale (locale),
|
|
|
2064 tag_set, !NILP (exact_p),
|
|
|
2065 1, 1));
|
|
|
2066 }
|
|
|
2067 else
|
|
|
2068 return Fspecifier_spec_list (specifier, locale, tag_set, exact_p);
|
|
|
2069 }
|
|
|
2070
|
|
|
2071 static int
|
|
|
2072 remove_specifier_mapfun (Lisp_Object specifier,
|
|
|
2073 Lisp_Object locale,
|
|
|
2074 enum spec_locale_type locale_type,
|
|
|
2075 Lisp_Object tag_set,
|
|
|
2076 int exact_p,
|
|
|
2077 void *ignored_closure)
|
|
|
2078 {
|
|
|
2079 if (NILP (locale))
|
|
|
2080 specifier_remove_locale_type (specifier, locale_type, tag_set, exact_p);
|
|
|
2081 else
|
|
|
2082 specifier_remove_spec (specifier, locale, locale_type, tag_set, exact_p);
|
|
|
2083 return 0;
|
|
|
2084 }
|
|
|
2085
|
|
20
|
2086 DEFUN ("remove-specifier", Fremove_specifier, 1, 4, 0, /*
|
|
0
|
2087 Remove specification(s) for SPECIFIER.
|
|
|
2088
|
|
|
2089 If LOCALE is a particular locale (a buffer, window, frame, device,
|
|
|
2090 or 'global), the specification for that locale will be removed.
|
|
|
2091
|
|
|
2092 If instead, LOCALE is a locale type (i.e. 'buffer, 'window, 'frame,
|
|
|
2093 or 'device), the specifications for all locales of that type will be
|
|
|
2094 removed.
|
|
|
2095
|
|
|
2096 If LOCALE is nil or 'all, all specifications will be removed.
|
|
|
2097
|
|
|
2098 LOCALE can also be a list of locales, locale types, and/or 'all; this
|
|
|
2099 is equivalent to calling `remove-specifier' for each of the elements
|
|
|
2100 in the list.
|
|
|
2101
|
|
|
2102 Only instantiators where TAG-SET (a list of zero or more tags) is a
|
|
|
2103 subset of (or possibly equal to) the instantiator's tag set are removed.
|
|
16
|
2104 The default value of nil is a subset of all tag sets, so in this case
|
|
|
2105 no instantiators will be screened out. If EXACT-P is non-nil, however,
|
|
0
|
2106 TAG-SET must be equal to an instantiator's tag set for the instantiator
|
|
|
2107 to be removed.
|
|
20
|
2108 */
|
|
|
2109 (specifier, locale, tag_set, exact_p))
|
|
0
|
2110 {
|
|
|
2111 CHECK_SPECIFIER (specifier);
|
|
276
|
2112 map_specifier (maybe_ghost_specifier (specifier), locale,
|
|
|
2113 remove_specifier_mapfun, tag_set, exact_p, 0);
|
|
0
|
2114 recompute_cached_specifier_everywhere (specifier);
|
|
|
2115 return Qnil;
|
|
|
2116 }
|
|
|
2117
|
|
276
|
2118 void
|
|
|
2119 remove_ghost_specifier (Lisp_Object specifier, Lisp_Object locale,
|
|
|
2120 Lisp_Object tag_set, Lisp_Object exact_p)
|
|
|
2121 {
|
|
|
2122 int depth = reveal_ghost_specifiers_protected ();
|
|
|
2123 Fremove_specifier (specifier, locale, tag_set, exact_p);
|
|
|
2124 unbind_to (depth, Qnil);
|
|
|
2125 }
|
|
|
2126
|
|
0
|
2127 struct copy_specifier_closure
|
|
|
2128 {
|
|
|
2129 Lisp_Object dest;
|
|
|
2130 enum spec_add_meth add_meth;
|
|
|
2131 int add_meth_is_nil;
|
|
|
2132 };
|
|
|
2133
|
|
|
2134 static int
|
|
|
2135 copy_specifier_mapfun (Lisp_Object specifier,
|
|
|
2136 Lisp_Object locale,
|
|
173
|
2137 enum spec_locale_type locale_type,
|
|
0
|
2138 Lisp_Object tag_set,
|
|
|
2139 int exact_p,
|
|
|
2140 void *closure)
|
|
|
2141 {
|
|
|
2142 struct copy_specifier_closure *cl =
|
|
|
2143 (struct copy_specifier_closure *) closure;
|
|
|
2144
|
|
|
2145 if (NILP (locale))
|
|
|
2146 specifier_copy_locale_type (specifier, cl->dest, locale_type,
|
|
|
2147 tag_set, exact_p,
|
|
|
2148 cl->add_meth_is_nil ?
|
|
|
2149 SPEC_REMOVE_LOCALE_TYPE :
|
|
|
2150 cl->add_meth);
|
|
|
2151 else
|
|
|
2152 specifier_copy_spec (specifier, cl->dest, locale, locale_type,
|
|
|
2153 tag_set, exact_p,
|
|
|
2154 cl->add_meth_is_nil ? SPEC_REMOVE_LOCALE :
|
|
|
2155 cl->add_meth);
|
|
|
2156 return 0;
|
|
|
2157 }
|
|
|
2158
|
|
20
|
2159 DEFUN ("copy-specifier", Fcopy_specifier, 1, 6, 0, /*
|
|
0
|
2160 Copy SPECIFIER to DEST, or create a new one if DEST is nil.
|
|
|
2161
|
|
|
2162 If DEST is nil or omitted, a new specifier will be created and the
|
|
|
2163 specifications copied into it. Otherwise, the specifications will be
|
|
|
2164 copied into the existing specifier in DEST.
|
|
|
2165
|
|
|
2166 If LOCALE is nil or 'all, all specifications will be copied. If LOCALE
|
|
|
2167 is a particular locale, the specification for that particular locale will
|
|
|
2168 be copied. If LOCALE is a locale type, the specifications for all locales
|
|
|
2169 of that type will be copied. LOCALE can also be a list of locales,
|
|
|
2170 locale types, and/or 'all; this is equivalent to calling `copy-specifier'
|
|
|
2171 for each of the elements of the list. See `specifier-spec-list' for more
|
|
|
2172 information about LOCALE.
|
|
|
2173
|
|
|
2174 Only instantiators where TAG-SET (a list of zero or more tags) is a
|
|
|
2175 subset of (or possibly equal to) the instantiator's tag set are copied.
|
|
16
|
2176 The default value of nil is a subset of all tag sets, so in this case
|
|
|
2177 no instantiators will be screened out. If EXACT-P is non-nil, however,
|
|
0
|
2178 TAG-SET must be equal to an instantiator's tag set for the instantiator
|
|
|
2179 to be copied.
|
|
|
2180
|
|
|
2181 Optional argument HOW-TO-ADD specifies what to do with existing
|
|
|
2182 specifications in DEST. If nil, then whichever locales or locale types
|
|
|
2183 are copied will first be completely erased in DEST. Otherwise, it is
|
|
|
2184 the same as in `add-spec-to-specifier'.
|
|
20
|
2185 */
|
|
|
2186 (specifier, dest, locale, tag_set, exact_p, how_to_add))
|
|
0
|
2187 {
|
|
|
2188 struct gcpro gcpro1;
|
|
|
2189 struct copy_specifier_closure cl;
|
|
|
2190
|
|
|
2191 CHECK_SPECIFIER (specifier);
|
|
|
2192 if (NILP (how_to_add))
|
|
|
2193 cl.add_meth_is_nil = 1;
|
|
|
2194 else
|
|
|
2195 cl.add_meth_is_nil = 0;
|
|
|
2196 cl.add_meth = decode_how_to_add_specification (how_to_add);
|
|
|
2197 if (NILP (dest))
|
|
|
2198 {
|
|
|
2199 /* #### What about copying the extra data? */
|
|
|
2200 dest = make_specifier (XSPECIFIER (specifier)->methods);
|
|
|
2201 }
|
|
|
2202 else
|
|
|
2203 {
|
|
|
2204 CHECK_SPECIFIER (dest);
|
|
|
2205 if (XSPECIFIER (dest)->methods != XSPECIFIER (specifier)->methods)
|
|
|
2206 error ("Specifiers not of same type");
|
|
|
2207 }
|
|
|
2208
|
|
|
2209 cl.dest = dest;
|
|
|
2210 GCPRO1 (dest);
|
|
276
|
2211 map_specifier (maybe_ghost_specifier (specifier), locale,
|
|
|
2212 copy_specifier_mapfun, tag_set, exact_p, &cl);
|
|
0
|
2213 UNGCPRO;
|
|
276
|
2214 recompute_cached_specifier_everywhere (dest);
|
|
0
|
2215 return dest;
|
|
|
2216 }
|
|
|
2217
|
|
|
2218
|
|
|
2219 /************************************************************************/
|
|
|
2220 /* Instancing */
|
|
|
2221 /************************************************************************/
|
|
|
2222
|
|
|
2223 static Lisp_Object
|
|
|
2224 call_validate_matchspec_method (Lisp_Object boxed_method,
|
|
|
2225 Lisp_Object matchspec)
|
|
|
2226 {
|
|
|
2227 ((void (*)(Lisp_Object)) get_opaque_ptr (boxed_method)) (matchspec);
|
|
|
2228 return Qt;
|
|
|
2229 }
|
|
|
2230
|
|
|
2231 static Lisp_Object
|
|
|
2232 check_valid_specifier_matchspec (Lisp_Object matchspec,
|
|
|
2233 struct specifier_methods *meths,
|
|
|
2234 Error_behavior errb)
|
|
|
2235 {
|
|
|
2236 if (meths->validate_matchspec_method)
|
|
|
2237 {
|
|
|
2238 Lisp_Object retval;
|
|
|
2239
|
|
|
2240 if (ERRB_EQ (errb, ERROR_ME))
|
|
|
2241 {
|
|
|
2242 (meths->validate_matchspec_method) (matchspec);
|
|
|
2243 retval = Qt;
|
|
|
2244 }
|
|
|
2245 else
|
|
|
2246 {
|
|
|
2247 Lisp_Object opaque =
|
|
|
2248 make_opaque_ptr ((void *) meths->validate_matchspec_method);
|
|
|
2249 struct gcpro gcpro1;
|
|
|
2250
|
|
|
2251 GCPRO1 (opaque);
|
|
74
|
2252 retval = call_with_suspended_errors
|
|
82
|
2253 ((lisp_fn_t) call_validate_matchspec_method,
|
|
|
2254 Qnil, Qspecifier, errb, 2, opaque, matchspec);
|
|
173
|
2255
|
|
0
|
2256 free_opaque_ptr (opaque);
|
|
|
2257 UNGCPRO;
|
|
|
2258 }
|
|
|
2259
|
|
|
2260 return retval;
|
|
|
2261 }
|
|
|
2262 else
|
|
|
2263 {
|
|
|
2264 maybe_signal_simple_error
|
|
|
2265 ("Matchspecs not allowed for this specifier type",
|
|
|
2266 intern (meths->name), Qspecifier, errb);
|
|
|
2267 return Qnil;
|
|
|
2268 }
|
|
|
2269 }
|
|
|
2270
|
|
20
|
2271 DEFUN ("check-valid-specifier-matchspec", Fcheck_valid_specifier_matchspec, 2, 2, 0, /*
|
|
0
|
2272 Signal an error if MATCHSPEC is invalid for SPECIFIER-TYPE.
|
|
|
2273 See `specifier-matching-instance' for a description of matchspecs.
|
|
20
|
2274 */
|
|
|
2275 (matchspec, specifier_type))
|
|
0
|
2276 {
|
|
|
2277 struct specifier_methods *meths = decode_specifier_type (specifier_type,
|
|
|
2278 ERROR_ME);
|
|
|
2279
|
|
|
2280 return check_valid_specifier_matchspec (matchspec, meths, ERROR_ME);
|
|
|
2281 }
|
|
|
2282
|
|
20
|
2283 DEFUN ("valid-specifier-matchspec-p", Fvalid_specifier_matchspec_p, 2, 2, 0, /*
|
|
0
|
2284 Return non-nil if MATCHSPEC is valid for SPECIFIER-TYPE.
|
|
|
2285 See `specifier-matching-instance' for a description of matchspecs.
|
|
20
|
2286 */
|
|
|
2287 (matchspec, specifier_type))
|
|
0
|
2288 {
|
|
|
2289 struct specifier_methods *meths = decode_specifier_type (specifier_type,
|
|
|
2290 ERROR_ME);
|
|
|
2291
|
|
|
2292 return check_valid_specifier_matchspec (matchspec, meths, ERROR_ME_NOT);
|
|
|
2293 }
|
|
|
2294
|
|
|
2295 /* This function is purposely not callable from Lisp. If a Lisp
|
|
|
2296 caller wants to set a fallback, they should just set the
|
|
|
2297 global value. */
|
|
173
|
2298
|
|
0
|
2299 void
|
|
|
2300 set_specifier_fallback (Lisp_Object specifier, Lisp_Object fallback)
|
|
|
2301 {
|
|
|
2302 struct Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
|
2303 assert (SPECIFIERP (fallback) ||
|
|
|
2304 !NILP (Fvalid_inst_list_p (fallback, Fspecifier_type (specifier))));
|
|
|
2305 if (SPECIFIERP (fallback))
|
|
|
2306 assert (EQ (Fspecifier_type (specifier), Fspecifier_type (fallback)));
|
|
276
|
2307 if (BODILY_SPECIFIER_P (sp))
|
|
|
2308 GHOST_SPECIFIER(sp)->fallback = fallback;
|
|
|
2309 else
|
|
|
2310 sp->fallback = fallback;
|
|
0
|
2311 /* call the after-change method */
|
|
276
|
2312 MAYBE_SPECMETH (sp, after_change,
|
|
|
2313 (bodily_specifier (specifier), Qfallback));
|
|
0
|
2314 recompute_cached_specifier_everywhere (specifier);
|
|
|
2315 }
|
|
|
2316
|
|
20
|
2317 DEFUN ("specifier-fallback", Fspecifier_fallback, 1, 1, 0, /*
|
|
0
|
2318 Return the fallback value for SPECIFIER.
|
|
|
2319 Fallback values are provided by the C code for certain built-in
|
|
|
2320 specifiers to make sure that instancing won't fail even if all
|
|
|
2321 specs are removed from the specifier, or to implement simple
|
|
|
2322 inheritance behavior (e.g. this method is used to ensure that
|
|
|
2323 faces other than 'default inherit their attributes from 'default).
|
|
|
2324 By design, you cannot change the fallback value, and specifiers
|
|
|
2325 created with `make-specifier' will never have a fallback (although
|
|
|
2326 a similar, Lisp-accessible capability may be provided in the future
|
|
|
2327 to allow for inheritance).
|
|
|
2328
|
|
|
2329 The fallback value will be an inst-list that is instanced like
|
|
|
2330 any other inst-list, a specifier of the same type as SPECIFIER
|
|
|
2331 \(results in inheritance), or nil for no fallback.
|
|
|
2332
|
|
|
2333 When you instance a specifier, you can explicitly request that the
|
|
|
2334 fallback not be consulted. (The C code does this, for example, when
|
|
|
2335 merging faces.) See `specifier-instance'.
|
|
20
|
2336 */
|
|
|
2337 (specifier))
|
|
0
|
2338 {
|
|
|
2339 CHECK_SPECIFIER (specifier);
|
|
|
2340 return Fcopy_tree (XSPECIFIER (specifier)->fallback, Qt);
|
|
|
2341 }
|
|
|
2342
|
|
|
2343 static Lisp_Object
|
|
|
2344 specifier_instance_from_inst_list (Lisp_Object specifier,
|
|
|
2345 Lisp_Object matchspec,
|
|
|
2346 Lisp_Object domain,
|
|
|
2347 Lisp_Object inst_list,
|
|
|
2348 Error_behavior errb, int no_quit,
|
|
|
2349 Lisp_Object depth)
|
|
|
2350 {
|
|
|
2351 /* This function can GC */
|
|
|
2352 struct Lisp_Specifier *sp;
|
|
|
2353 Lisp_Object device;
|
|
|
2354 Lisp_Object rest;
|
|
|
2355 int count = specpdl_depth ();
|
|
|
2356 struct gcpro gcpro1, gcpro2;
|
|
|
2357
|
|
|
2358 GCPRO2 (specifier, inst_list);
|
|
|
2359
|
|
|
2360 sp = XSPECIFIER (specifier);
|
|
|
2361 device = DFW_DEVICE (domain);
|
|
|
2362
|
|
|
2363 if (no_quit)
|
|
|
2364 /* The instantiate method is allowed to call eval. Since it
|
|
|
2365 is quite common for this function to get called from somewhere in
|
|
|
2366 redisplay we need to make sure that quits are ignored. Otherwise
|
|
|
2367 Fsignal will abort. */
|
|
|
2368 specbind (Qinhibit_quit, Qt);
|
|
|
2369
|
|
|
2370 LIST_LOOP (rest, inst_list)
|
|
|
2371 {
|
|
|
2372 Lisp_Object tagged_inst = XCAR (rest);
|
|
|
2373 Lisp_Object tag_set = XCAR (tagged_inst);
|
|
|
2374
|
|
|
2375 if (device_matches_specifier_tag_set_p (device, tag_set))
|
|
|
2376 {
|
|
|
2377 Lisp_Object val = XCDR (tagged_inst);
|
|
|
2378
|
|
|
2379 if (HAS_SPECMETH_P (sp, instantiate))
|
|
74
|
2380 val = call_with_suspended_errors
|
|
82
|
2381 ((lisp_fn_t) RAW_SPECMETH (sp, instantiate),
|
|
|
2382 Qunbound, Qspecifier, errb, 5, specifier,
|
|
272
|
2383 matchspec, domain, val, depth);
|
|
0
|
2384
|
|
|
2385 if (!UNBOUNDP (val))
|
|
|
2386 {
|
|
|
2387 unbind_to (count, Qnil);
|
|
|
2388 UNGCPRO;
|
|
|
2389 return val;
|
|
|
2390 }
|
|
|
2391 }
|
|
|
2392 }
|
|
|
2393
|
|
|
2394 unbind_to (count, Qnil);
|
|
|
2395 UNGCPRO;
|
|
|
2396 return Qunbound;
|
|
|
2397 }
|
|
|
2398
|
|
|
2399 /* Given a SPECIFIER and a DOMAIN, return a specific instance for that
|
|
|
2400 specifier. Try to find one by checking the specifier types from most
|
|
|
2401 specific (buffer) to most general (global). If we find an instance,
|
|
|
2402 return it. Otherwise return Qunbound. */
|
|
|
2403
|
|
|
2404 #define CHECK_INSTANCE_ENTRY(key, matchspec, type) \
|
|
|
2405 do { \
|
|
|
2406 Lisp_Object *__inst_list = \
|
|
|
2407 specifier_get_inst_list (specifier, key, type); \
|
|
|
2408 if (__inst_list) \
|
|
|
2409 { \
|
|
|
2410 Lisp_Object __val__ = \
|
|
|
2411 specifier_instance_from_inst_list (specifier, matchspec, \
|
|
|
2412 domain, *__inst_list, \
|
|
|
2413 errb, no_quit, depth); \
|
|
|
2414 if (!UNBOUNDP (__val__)) \
|
|
|
2415 return __val__; \
|
|
|
2416 } \
|
|
|
2417 } while (0)
|
|
|
2418
|
|
|
2419 /* We accept any window, frame or device domain and do our checking
|
|
|
2420 starting from as specific a locale type as we can determine from the
|
|
|
2421 domain we are passed and going on up through as many other locale types
|
|
|
2422 as we can determine. In practice, when called from redisplay the
|
|
|
2423 arg will usually be a window and occasionally a frame. If
|
|
|
2424 triggered by a user call, who knows what it will usually be. */
|
|
|
2425 Lisp_Object
|
|
|
2426 specifier_instance (Lisp_Object specifier, Lisp_Object matchspec,
|
|
|
2427 Lisp_Object domain, Error_behavior errb, int no_quit,
|
|
|
2428 int no_fallback, Lisp_Object depth)
|
|
|
2429 {
|
|
|
2430 Lisp_Object buffer = Qnil;
|
|
|
2431 Lisp_Object window = Qnil;
|
|
|
2432 Lisp_Object frame = Qnil;
|
|
|
2433 Lisp_Object device = Qnil;
|
|
|
2434 Lisp_Object tag = Qnil;
|
|
|
2435 struct device *d;
|
|
|
2436 struct Lisp_Specifier *sp;
|
|
|
2437
|
|
|
2438 sp = XSPECIFIER (specifier);
|
|
|
2439
|
|
|
2440 /* Attempt to determine buffer, window, frame, and device from the
|
|
|
2441 domain. */
|
|
|
2442 if (WINDOWP (domain))
|
|
|
2443 window = domain;
|
|
|
2444 else if (FRAMEP (domain))
|
|
|
2445 frame = domain;
|
|
|
2446 else if (DEVICEP (domain))
|
|
|
2447 device = domain;
|
|
|
2448 else
|
|
120
|
2449 /* #### dmoore - dammit, this should just signal an error or something
|
|
|
2450 shouldn't it? */
|
|
0
|
2451 abort ();
|
|
|
2452
|
|
|
2453 if (NILP (buffer) && !NILP (window))
|
|
|
2454 buffer = XWINDOW (window)->buffer;
|
|
|
2455 if (NILP (frame) && !NILP (window))
|
|
|
2456 frame = XWINDOW (window)->frame;
|
|
|
2457 if (NILP (device))
|
|
|
2458 /* frame had better exist; if device is undeterminable, something
|
|
|
2459 really went wrong. */
|
|
|
2460 device = XFRAME (frame)->device;
|
|
|
2461
|
|
|
2462 /* device had better be determined by now; abort if not. */
|
|
|
2463 d = XDEVICE (device);
|
|
|
2464 tag = DEVICE_CLASS (d);
|
|
|
2465
|
|
|
2466 depth = make_int (1 + XINT (depth));
|
|
|
2467 if (XINT (depth) > 20)
|
|
|
2468 {
|
|
|
2469 maybe_error (Qspecifier, errb, "Apparent loop in specifier inheritance");
|
|
|
2470 /* The specification is fucked; at least try the fallback
|
|
|
2471 (which better not be fucked, because it's not changeable
|
|
|
2472 from Lisp). */
|
|
|
2473 depth = Qzero;
|
|
|
2474 goto do_fallback;
|
|
|
2475 }
|
|
|
2476
|
|
|
2477 try_again:
|
|
|
2478 /* First see if we can generate one from the buffer specifiers. */
|
|
|
2479 if (!NILP (buffer))
|
|
|
2480 CHECK_INSTANCE_ENTRY (buffer, matchspec, LOCALE_BUFFER);
|
|
|
2481
|
|
|
2482 /* Next see if we can generate one from the window specifiers. */
|
|
|
2483 if (!NILP (window))
|
|
|
2484 CHECK_INSTANCE_ENTRY (window, matchspec, LOCALE_WINDOW);
|
|
|
2485
|
|
|
2486 /* Next see if we can generate one from the frame specifiers. */
|
|
|
2487 if (!NILP (frame))
|
|
|
2488 CHECK_INSTANCE_ENTRY (frame, matchspec, LOCALE_FRAME);
|
|
|
2489
|
|
|
2490 /* If we still haven't succeeded try with the device specifiers. */
|
|
|
2491 CHECK_INSTANCE_ENTRY (device, matchspec, LOCALE_DEVICE);
|
|
|
2492
|
|
|
2493 /* Last and least try the global specifiers. */
|
|
|
2494 CHECK_INSTANCE_ENTRY (Qglobal, matchspec, LOCALE_GLOBAL);
|
|
|
2495
|
|
|
2496 do_fallback:
|
|
|
2497 /* We're out of specifiers and we still haven't generated an
|
|
|
2498 instance. At least try the fallback ... If this fails,
|
|
|
2499 then we just return Qunbound. */
|
|
|
2500
|
|
|
2501 if (no_fallback || NILP (sp->fallback))
|
|
|
2502 /* I said, I don't want the fallbacks. */
|
|
|
2503 return Qunbound;
|
|
|
2504
|
|
|
2505 if (SPECIFIERP (sp->fallback))
|
|
|
2506 {
|
|
|
2507 /* If you introduced loops in the default specifier chain,
|
|
|
2508 then you're fucked, so you better not do this. */
|
|
|
2509 specifier = sp->fallback;
|
|
|
2510 sp = XSPECIFIER (specifier);
|
|
|
2511 goto try_again;
|
|
|
2512 }
|
|
|
2513
|
|
|
2514 assert (CONSP (sp->fallback));
|
|
|
2515 return specifier_instance_from_inst_list (specifier, matchspec, domain,
|
|
|
2516 sp->fallback, errb, no_quit,
|
|
|
2517 depth);
|
|
|
2518 }
|
|
|
2519 #undef CHECK_INSTANCE_ENTRY
|
|
|
2520
|
|
|
2521 Lisp_Object
|
|
|
2522 specifier_instance_no_quit (Lisp_Object specifier, Lisp_Object matchspec,
|
|
|
2523 Lisp_Object domain, Error_behavior errb,
|
|
|
2524 int no_fallback, Lisp_Object depth)
|
|
|
2525 {
|
|
|
2526 return specifier_instance (specifier, matchspec, domain, errb,
|
|
|
2527 1, no_fallback, depth);
|
|
|
2528 }
|
|
|
2529
|
|
20
|
2530 DEFUN ("specifier-instance", Fspecifier_instance, 1, 4, 0, /*
|
|
0
|
2531 Instantiate SPECIFIER (return its value) in DOMAIN.
|
|
|
2532 If no instance can be generated for this domain, return DEFAULT.
|
|
|
2533
|
|
|
2534 DOMAIN should be a window, frame, or device. Other values that are legal
|
|
|
2535 as a locale (e.g. a buffer) are not valid as a domain because they do not
|
|
|
2536 provide enough information to identify a particular device (see
|
|
|
2537 `valid-specifier-domain-p'). DOMAIN defaults to the selected window
|
|
|
2538 if omitted.
|
|
|
2539
|
|
185
|
2540 "Instantiating" a specifier in a particular domain means determining
|
|
|
2541 the specifier's "value" in that domain. This is accomplished by
|
|
0
|
2542 searching through the specifications in the specifier that correspond
|
|
|
2543 to all locales that can be derived from the given domain, from specific
|
|
|
2544 to general. In most cases, the domain is an Emacs window. In that case
|
|
|
2545 specifications are searched for as follows:
|
|
|
2546
|
|
|
2547 1. A specification whose locale is the window's buffer;
|
|
|
2548 2. A specification whose locale is the window itself;
|
|
|
2549 3. A specification whose locale is the window's frame;
|
|
|
2550 4. A specification whose locale is the window's frame's device;
|
|
|
2551 5. A specification whose locale is 'global.
|
|
|
2552
|
|
|
2553 If all of those fail, then the C-code-provided fallback value for
|
|
|
2554 this specifier is consulted (see `specifier-fallback'). If it is
|
|
|
2555 an inst-list, then this function attempts to instantiate that list
|
|
|
2556 just as when a specification is located in the first five steps above.
|
|
|
2557 If the fallback is a specifier, `specifier-instance' is called
|
|
|
2558 recursively on this specifier and the return value used. Note,
|
|
|
2559 however, that if the optional argument NO-FALLBACK is non-nil,
|
|
|
2560 the fallback value will not be consulted.
|
|
|
2561
|
|
|
2562 Note that there may be more than one specification matching a particular
|
|
|
2563 locale; all such specifications are considered before looking for any
|
|
|
2564 specifications for more general locales. Any particular specification
|
|
|
2565 that is found may be rejected because its tag set does not match the
|
|
|
2566 device being instantiated over, or because the specification is not
|
|
|
2567 valid for the device of the given domain (e.g. the font or color name
|
|
|
2568 does not exist for this particular X server).
|
|
|
2569
|
|
|
2570 The returned value is dependent on the type of specifier. For example,
|
|
|
2571 for a font specifier (as returned by the `face-font' function), the returned
|
|
|
2572 value will be a font-instance object. For glyphs, the returned value
|
|
|
2573 will be a string, pixmap, or subwindow.
|
|
|
2574
|
|
|
2575 See also `specifier-matching-instance'.
|
|
20
|
2576 */
|
|
173
|
2577 (specifier, domain, default_, no_fallback))
|
|
0
|
2578 {
|
|
|
2579 Lisp_Object instance;
|
|
|
2580
|
|
|
2581 CHECK_SPECIFIER (specifier);
|
|
|
2582 domain = decode_domain (domain);
|
|
|
2583
|
|
276
|
2584 instance = specifier_instance (maybe_ghost_specifier (specifier),
|
|
|
2585 Qunbound, domain, ERROR_ME, 0,
|
|
0
|
2586 !NILP (no_fallback), Qzero);
|
|
173
|
2587 return UNBOUNDP (instance) ? default_ : instance;
|
|
0
|
2588 }
|
|
|
2589
|
|
20
|
2590 DEFUN ("specifier-matching-instance", Fspecifier_matching_instance, 2, 5, 0, /*
|
|
0
|
2591 Return an instance for SPECIFIER in DOMAIN that matches MATCHSPEC.
|
|
|
2592 If no instance can be generated for this domain, return DEFAULT.
|
|
|
2593
|
|
|
2594 This function is identical to `specifier-instance' except that a
|
|
|
2595 specification will only be considered if it matches MATCHSPEC.
|
|
185
|
2596 The definition of "match", and allowed values for MATCHSPEC, are
|
|
0
|
2597 dependent on the particular type of specifier. Here are some examples:
|
|
|
2598
|
|
|
2599 -- For chartable (e.g. display table) specifiers, MATCHSPEC should be a
|
|
|
2600 character, and the specification (a chartable) must give a value for
|
|
|
2601 that character in order to be considered. This allows you to specify,
|
|
|
2602 e.g., a buffer-local display table that only gives values for particular
|
|
|
2603 characters. All other characters are handled as if the buffer-local
|
|
|
2604 display table is not there. (Chartable specifiers are not yet
|
|
|
2605 implemented.)
|
|
|
2606
|
|
|
2607 -- For font specifiers, MATCHSPEC should be a charset, and the specification
|
|
|
2608 (a font string) must have a registry that matches the charset's registry.
|
|
|
2609 (This only makes sense with Mule support.) This makes it easy to choose a
|
|
|
2610 font that can display a particular character. (This is what redisplay
|
|
|
2611 does, in fact.)
|
|
20
|
2612 */
|
|
173
|
2613 (specifier, matchspec, domain, default_, no_fallback))
|
|
0
|
2614 {
|
|
|
2615 Lisp_Object instance;
|
|
|
2616
|
|
|
2617 CHECK_SPECIFIER (specifier);
|
|
|
2618 check_valid_specifier_matchspec (matchspec, XSPECIFIER (specifier)->methods,
|
|
|
2619 ERROR_ME);
|
|
|
2620 domain = decode_domain (domain);
|
|
|
2621
|
|
276
|
2622 instance = specifier_instance (maybe_ghost_specifier (specifier),
|
|
|
2623 matchspec, domain, ERROR_ME,
|
|
|
2624 0, !NILP (no_fallback), Qzero);
|
|
173
|
2625 return UNBOUNDP (instance) ? default_ : instance;
|
|
0
|
2626 }
|
|
|
2627
|
|
20
|
2628 DEFUN ("specifier-instance-from-inst-list",
|
|
|
2629 Fspecifier_instance_from_inst_list, 3, 4, 0, /*
|
|
0
|
2630 Attempt to convert a particular inst-list into an instance.
|
|
|
2631 This attempts to instantiate INST-LIST in the given DOMAIN,
|
|
|
2632 as if INST-LIST existed in a specification in SPECIFIER. If
|
|
|
2633 the instantiation fails, DEFAULT is returned. In most circumstances,
|
|
|
2634 you should not use this function; use `specifier-instance' instead.
|
|
20
|
2635 */
|
|
173
|
2636 (specifier, domain, inst_list, default_))
|
|
0
|
2637 {
|
|
|
2638 Lisp_Object val = Qunbound;
|
|
|
2639 struct Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
|
2640 struct gcpro gcpro1;
|
|
|
2641 Lisp_Object built_up_list = Qnil;
|
|
|
2642
|
|
|
2643 CHECK_SPECIFIER (specifier);
|
|
|
2644 check_valid_domain (domain);
|
|
|
2645 check_valid_inst_list (inst_list, sp->methods, ERROR_ME);
|
|
|
2646 GCPRO1 (built_up_list);
|
|
276
|
2647 built_up_list = build_up_processed_list (maybe_ghost_specifier (specifier),
|
|
|
2648 domain, inst_list);
|
|
0
|
2649 if (!NILP (built_up_list))
|
|
276
|
2650 val = specifier_instance_from_inst_list (maybe_ghost_specifier (specifier),
|
|
|
2651 Qunbound, domain, built_up_list,
|
|
|
2652 ERROR_ME, 0, Qzero);
|
|
0
|
2653 UNGCPRO;
|
|
173
|
2654 return UNBOUNDP (val) ? default_ : val;
|
|
0
|
2655 }
|
|
|
2656
|
|
|
2657 DEFUN ("specifier-matching-instance-from-inst-list",
|
|
20
|
2658 Fspecifier_matching_instance_from_inst_list, 4, 5, 0, /*
|
|
0
|
2659 Attempt to convert a particular inst-list into an instance.
|
|
|
2660 This attempts to instantiate INST-LIST in the given DOMAIN
|
|
272
|
2661 \(as if INST-LIST existed in a specification in SPECIFIER),
|
|
0
|
2662 matching the specifications against MATCHSPEC.
|
|
|
2663
|
|
|
2664 This function is analogous to `specifier-instance-from-inst-list'
|
|
|
2665 but allows for specification-matching as in `specifier-matching-instance'.
|
|
|
2666 See that function for a description of exactly how the matching process
|
|
|
2667 works.
|
|
20
|
2668 */
|
|
173
|
2669 (specifier, matchspec, domain, inst_list, default_))
|
|
0
|
2670 {
|
|
|
2671 Lisp_Object val = Qunbound;
|
|
|
2672 struct Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
|
2673 struct gcpro gcpro1;
|
|
|
2674 Lisp_Object built_up_list = Qnil;
|
|
|
2675
|
|
|
2676 CHECK_SPECIFIER (specifier);
|
|
|
2677 check_valid_specifier_matchspec (matchspec, XSPECIFIER (specifier)->methods,
|
|
|
2678 ERROR_ME);
|
|
|
2679 check_valid_domain (domain);
|
|
|
2680 check_valid_inst_list (inst_list, sp->methods, ERROR_ME);
|
|
|
2681 GCPRO1 (built_up_list);
|
|
276
|
2682 built_up_list = build_up_processed_list (maybe_ghost_specifier (specifier),
|
|
|
2683 domain, inst_list);
|
|
0
|
2684 if (!NILP (built_up_list))
|
|
276
|
2685 val = specifier_instance_from_inst_list (maybe_ghost_specifier (specifier),
|
|
|
2686 matchspec, domain, built_up_list,
|
|
|
2687 ERROR_ME, 0, Qzero);
|
|
0
|
2688 UNGCPRO;
|
|
173
|
2689 return UNBOUNDP (val) ? default_ : val;
|
|
0
|
2690 }
|
|
|
2691
|
|
|
2692
|
|
|
2693 /************************************************************************/
|
|
|
2694 /* Caching in the struct window or frame */
|
|
|
2695 /************************************************************************/
|
|
|
2696
|
|
|
2697 /* Either STRUCT_WINDOW_OFFSET or STRUCT_FRAME_OFFSET can be 0 to indicate
|
|
|
2698 no caching in that sort of object. */
|
|
|
2699
|
|
|
2700 /* #### It would be nice if the specifier caching automatically knew
|
|
|
2701 about specifier fallbacks, so we didn't have to do it ourselves. */
|
|
|
2702
|
|
|
2703 void
|
|
|
2704 set_specifier_caching (Lisp_Object specifier, int struct_window_offset,
|
|
|
2705 void (*value_changed_in_window)
|
|
|
2706 (Lisp_Object specifier, struct window *w,
|
|
|
2707 Lisp_Object oldval),
|
|
|
2708 int struct_frame_offset,
|
|
|
2709 void (*value_changed_in_frame)
|
|
|
2710 (Lisp_Object specifier, struct frame *f,
|
|
|
2711 Lisp_Object oldval))
|
|
|
2712 {
|
|
|
2713 struct Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
276
|
2714 assert (!GHOST_SPECIFIER_P (sp));
|
|
0
|
2715
|
|
|
2716 if (!sp->caching)
|
|
185
|
2717 sp->caching = xnew_and_zero (struct specifier_caching);
|
|
0
|
2718 sp->caching->offset_into_struct_window = struct_window_offset;
|
|
|
2719 sp->caching->value_changed_in_window = value_changed_in_window;
|
|
|
2720 sp->caching->offset_into_struct_frame = struct_frame_offset;
|
|
|
2721 sp->caching->value_changed_in_frame = value_changed_in_frame;
|
|
|
2722 Vcached_specifiers = Fcons (specifier, Vcached_specifiers);
|
|
276
|
2723 if (BODILY_SPECIFIER_P (sp))
|
|
|
2724 GHOST_SPECIFIER(sp)->caching = sp->caching;
|
|
0
|
2725 recompute_cached_specifier_everywhere (specifier);
|
|
|
2726 }
|
|
|
2727
|
|
|
2728 static void
|
|
|
2729 recompute_one_cached_specifier_in_window (Lisp_Object specifier,
|
|
|
2730 struct window *w)
|
|
|
2731 {
|
|
272
|
2732 Lisp_Object window;
|
|
0
|
2733 Lisp_Object newval, *location;
|
|
|
2734
|
|
276
|
2735 assert (!GHOST_SPECIFIER_P (XSPECIFIER (specifier)));
|
|
|
2736
|
|
0
|
2737 XSETWINDOW (window, w);
|
|
|
2738
|
|
|
2739 newval = specifier_instance (specifier, Qunbound, window, ERROR_ME_WARN,
|
|
|
2740 0, 0, Qzero);
|
|
|
2741 /* If newval ended up Qunbound, then the calling functions
|
|
|
2742 better be able to deal. If not, set a default so this
|
|
|
2743 never happens or correct it in the value_changed_in_window
|
|
|
2744 method. */
|
|
|
2745 location = (Lisp_Object *)
|
|
|
2746 ((char *) w + XSPECIFIER (specifier)->caching->offset_into_struct_window);
|
|
|
2747 if (!EQ (newval, *location))
|
|
|
2748 {
|
|
|
2749 Lisp_Object oldval = *location;
|
|
|
2750 *location = newval;
|
|
|
2751 (XSPECIFIER (specifier)->caching->value_changed_in_window)
|
|
|
2752 (specifier, w, oldval);
|
|
|
2753 }
|
|
|
2754 }
|
|
|
2755
|
|
|
2756 static void
|
|
|
2757 recompute_one_cached_specifier_in_frame (Lisp_Object specifier,
|
|
|
2758 struct frame *f)
|
|
|
2759 {
|
|
272
|
2760 Lisp_Object frame;
|
|
0
|
2761 Lisp_Object newval, *location;
|
|
|
2762
|
|
276
|
2763 assert (!GHOST_SPECIFIER_P (XSPECIFIER (specifier)));
|
|
|
2764
|
|
0
|
2765 XSETFRAME (frame, f);
|
|
|
2766
|
|
|
2767 newval = specifier_instance (specifier, Qunbound, frame, ERROR_ME_WARN,
|
|
|
2768 0, 0, Qzero);
|
|
|
2769 /* If newval ended up Qunbound, then the calling functions
|
|
|
2770 better be able to deal. If not, set a default so this
|
|
|
2771 never happens or correct it in the value_changed_in_frame
|
|
|
2772 method. */
|
|
|
2773 location = (Lisp_Object *)
|
|
|
2774 ((char *) f + XSPECIFIER (specifier)->caching->offset_into_struct_frame);
|
|
|
2775 if (!EQ (newval, *location))
|
|
|
2776 {
|
|
|
2777 Lisp_Object oldval = *location;
|
|
|
2778 *location = newval;
|
|
|
2779 (XSPECIFIER (specifier)->caching->value_changed_in_frame)
|
|
|
2780 (specifier, f, oldval);
|
|
|
2781 }
|
|
|
2782 }
|
|
|
2783
|
|
|
2784 void
|
|
|
2785 recompute_all_cached_specifiers_in_window (struct window *w)
|
|
|
2786 {
|
|
|
2787 Lisp_Object rest;
|
|
|
2788
|
|
|
2789 LIST_LOOP (rest, Vcached_specifiers)
|
|
|
2790 {
|
|
|
2791 Lisp_Object specifier = XCAR (rest);
|
|
|
2792 if (XSPECIFIER (specifier)->caching->offset_into_struct_window)
|
|
|
2793 recompute_one_cached_specifier_in_window (specifier, w);
|
|
|
2794 }
|
|
|
2795 }
|
|
|
2796
|
|
|
2797 void
|
|
|
2798 recompute_all_cached_specifiers_in_frame (struct frame *f)
|
|
|
2799 {
|
|
|
2800 Lisp_Object rest;
|
|
|
2801
|
|
|
2802 LIST_LOOP (rest, Vcached_specifiers)
|
|
|
2803 {
|
|
|
2804 Lisp_Object specifier = XCAR (rest);
|
|
|
2805 if (XSPECIFIER (specifier)->caching->offset_into_struct_frame)
|
|
|
2806 recompute_one_cached_specifier_in_frame (specifier, f);
|
|
|
2807 }
|
|
|
2808 }
|
|
|
2809
|
|
|
2810 static int
|
|
|
2811 recompute_cached_specifier_everywhere_mapfun (struct window *w,
|
|
|
2812 void *closure)
|
|
|
2813 {
|
|
|
2814 Lisp_Object specifier = Qnil;
|
|
|
2815
|
|
|
2816 VOID_TO_LISP (specifier, closure);
|
|
|
2817 recompute_one_cached_specifier_in_window (specifier, w);
|
|
|
2818 return 0;
|
|
|
2819 }
|
|
|
2820
|
|
|
2821 static void
|
|
|
2822 recompute_cached_specifier_everywhere (Lisp_Object specifier)
|
|
|
2823 {
|
|
|
2824 Lisp_Object frmcons, devcons, concons;
|
|
|
2825
|
|
276
|
2826 specifier = bodily_specifier (specifier);
|
|
|
2827
|
|
0
|
2828 if (!XSPECIFIER (specifier)->caching)
|
|
|
2829 return;
|
|
|
2830
|
|
|
2831 if (XSPECIFIER (specifier)->caching->offset_into_struct_window)
|
|
|
2832 {
|
|
|
2833 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
2834 map_windows (XFRAME (XCAR (frmcons)),
|
|
|
2835 recompute_cached_specifier_everywhere_mapfun,
|
|
|
2836 LISP_TO_VOID (specifier));
|
|
|
2837 }
|
|
|
2838
|
|
|
2839 if (XSPECIFIER (specifier)->caching->offset_into_struct_frame)
|
|
|
2840 {
|
|
|
2841 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
2842 recompute_one_cached_specifier_in_frame (specifier,
|
|
|
2843 XFRAME (XCAR (frmcons)));
|
|
|
2844 }
|
|
|
2845 }
|
|
|
2846
|
|
20
|
2847 DEFUN ("set-specifier-dirty-flag", Fset_specifier_dirty_flag, 1, 1, 0, /*
|
|
0
|
2848 Force recomputation of any caches associated with SPECIFIER.
|
|
|
2849 Note that this automatically happens whenever you change a specification
|
|
|
2850 in SPECIFIER; you do not have to call this function then.
|
|
|
2851 One example of where this function is useful is when you have a
|
|
|
2852 toolbar button whose `active-p' field is an expression to be
|
|
|
2853 evaluated. Calling `set-specifier-dirty-flag' on the
|
|
|
2854 toolbar specifier will force the `active-p' fields to be
|
|
|
2855 recomputed.
|
|
20
|
2856 */
|
|
|
2857 (specifier))
|
|
0
|
2858 {
|
|
|
2859 CHECK_SPECIFIER (specifier);
|
|
|
2860 recompute_cached_specifier_everywhere (specifier);
|
|
|
2861 return Qnil;
|
|
|
2862 }
|
|
|
2863
|
|
|
2864
|
|
|
2865 /************************************************************************/
|
|
|
2866 /* Generic specifier type */
|
|
|
2867 /************************************************************************/
|
|
|
2868
|
|
|
2869 DEFINE_SPECIFIER_TYPE (generic);
|
|
|
2870
|
|
|
2871 #if 0
|
|
|
2872
|
|
|
2873 /* This is the string that used to be in `generic-specifier-p'.
|
|
|
2874 The idea is good, but it doesn't quite work in the form it's
|
|
|
2875 in. (One major problem is that validating an instantiator
|
|
|
2876 is supposed to require only that the specifier type is passed,
|
|
|
2877 while with this approach the actual specifier is needed.)
|
|
|
2878
|
|
|
2879 What really needs to be done is to write a function
|
|
|
2880 `make-specifier-type' that creates new specifier types.
|
|
70
|
2881 #### I'll look into this for 19.14.
|
|
0
|
2882 */
|
|
|
2883
|
|
|
2884 "A generic specifier is a generalized kind of specifier with user-defined\n"
|
|
|
2885 "semantics. The instantiator can be any kind of Lisp object, and the\n"
|
|
|
2886 "instance computed from it is likewise any kind of Lisp object. The\n"
|
|
|
2887 "SPECIFIER-DATA should be an alist of methods governing how the specifier\n"
|
|
|
2888 "works. All methods are optional, and reasonable default methods will be\n"
|
|
|
2889 "provided. Currently there are two defined methods: 'instantiate and\n"
|
|
|
2890 "'validate.\n"
|
|
|
2891 "\n"
|
|
|
2892 "'instantiate specifies how to do the instantiation; if omitted, the\n"
|
|
|
2893 "instantiator itself is simply returned as the instance. The method\n"
|
|
|
2894 "should be a function that accepts three parameters (a specifier, the\n"
|
|
|
2895 "instantiator that matched the domain being instantiated over, and that\n"
|
|
|
2896 "domain), and should return a one-element list containing the instance,\n"
|
|
|
2897 "or nil if no instance exists. Note that the domain passed to this function\n"
|
|
|
2898 "is the domain being instantiated over, which may not be the same as the\n"
|
|
|
2899 "locale contained in the specification corresponding to the instantiator\n"
|
|
|
2900 "(for example, the domain being instantiated over could be a window, but\n"
|
|
|
2901 "the locale corresponding to the passed instantiator could be the window's\n"
|
|
|
2902 "buffer or frame).\n"
|
|
|
2903 "\n"
|
|
|
2904 "'validate specifies whether a given instantiator is valid; if omitted,\n"
|
|
|
2905 "all instantiators are considered valid. It should be a function of\n"
|
|
|
2906 "two arguments: an instantiator and a flag CAN-SIGNAL-ERROR. If this\n"
|
|
|
2907 "flag is false, the function must simply return t or nil indicating\n"
|
|
|
2908 "whether the instantiator is valid. If this flag is true, the function\n"
|
|
|
2909 "is free to signal an error if it encounters an invalid instantiator\n"
|
|
|
2910 "(this can be useful for issuing a specific error about exactly why the\n"
|
|
|
2911 "instantiator is valid). It can also return nil to indicate an invalid\n"
|
|
|
2912 "instantiator; in this case, a general error will be signalled."
|
|
|
2913
|
|
|
2914 #endif /* 0 */
|
|
|
2915
|
|
20
|
2916 DEFUN ("generic-specifier-p", Fgeneric_specifier_p, 1, 1, 0, /*
|
|
0
|
2917 Return non-nil if OBJECT is a generic specifier.
|
|
|
2918
|
|
|
2919 A generic specifier allows any kind of Lisp object as an instantiator,
|
|
|
2920 and returns back the Lisp object unchanged when it is instantiated.
|
|
20
|
2921 */
|
|
|
2922 (object))
|
|
0
|
2923 {
|
|
173
|
2924 return GENERIC_SPECIFIERP (object) ? Qt : Qnil;
|
|
0
|
2925 }
|
|
|
2926
|
|
|
2927
|
|
|
2928 /************************************************************************/
|
|
|
2929 /* Integer specifier type */
|
|
|
2930 /************************************************************************/
|
|
|
2931
|
|
|
2932 DEFINE_SPECIFIER_TYPE (integer);
|
|
|
2933
|
|
|
2934 static void
|
|
|
2935 integer_validate (Lisp_Object instantiator)
|
|
|
2936 {
|
|
|
2937 CHECK_INT (instantiator);
|
|
|
2938 }
|
|
|
2939
|
|
20
|
2940 DEFUN ("integer-specifier-p", Finteger_specifier_p, 1, 1, 0, /*
|
|
0
|
2941 Return non-nil if OBJECT is an integer specifier.
|
|
20
|
2942 */
|
|
|
2943 (object))
|
|
0
|
2944 {
|
|
173
|
2945 return INTEGER_SPECIFIERP (object) ? Qt : Qnil;
|
|
0
|
2946 }
|
|
|
2947
|
|
|
2948 /************************************************************************/
|
|
|
2949 /* Non-negative-integer specifier type */
|
|
|
2950 /************************************************************************/
|
|
|
2951
|
|
|
2952 DEFINE_SPECIFIER_TYPE (natnum);
|
|
|
2953
|
|
|
2954 static void
|
|
|
2955 natnum_validate (Lisp_Object instantiator)
|
|
|
2956 {
|
|
|
2957 CHECK_NATNUM (instantiator);
|
|
|
2958 }
|
|
|
2959
|
|
20
|
2960 DEFUN ("natnum-specifier-p", Fnatnum_specifier_p, 1, 1, 0, /*
|
|
0
|
2961 Return non-nil if OBJECT is a natnum (non-negative-integer) specifier.
|
|
20
|
2962 */
|
|
|
2963 (object))
|
|
0
|
2964 {
|
|
173
|
2965 return NATNUM_SPECIFIERP (object) ? Qt : Qnil;
|
|
0
|
2966 }
|
|
|
2967
|
|
|
2968 /************************************************************************/
|
|
|
2969 /* Boolean specifier type */
|
|
|
2970 /************************************************************************/
|
|
|
2971
|
|
|
2972 DEFINE_SPECIFIER_TYPE (boolean);
|
|
|
2973
|
|
|
2974 static void
|
|
|
2975 boolean_validate (Lisp_Object instantiator)
|
|
|
2976 {
|
|
|
2977 if (!EQ (instantiator, Qt) && !EQ (instantiator, Qnil))
|
|
|
2978 signal_simple_error ("Must be t or nil", instantiator);
|
|
|
2979 }
|
|
|
2980
|
|
20
|
2981 DEFUN ("boolean-specifier-p", Fboolean_specifier_p, 1, 1, 0, /*
|
|
155
|
2982 Return non-nil if OBJECT is a boolean specifier.
|
|
20
|
2983 */
|
|
|
2984 (object))
|
|
0
|
2985 {
|
|
173
|
2986 return BOOLEAN_SPECIFIERP (object) ? Qt : Qnil;
|
|
0
|
2987 }
|
|
|
2988
|
|
116
|
2989 /************************************************************************/
|
|
|
2990 /* Display table specifier type */
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|
2991 /************************************************************************/
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|
2992
|
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|
2993 DEFINE_SPECIFIER_TYPE (display_table);
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2994
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169
|
2995 static void
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|
2996 display_table_validate (Lisp_Object instantiator)
|
|
116
|
2997 {
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|
|
2998 if (!NILP(instantiator) &&
|
|
|
2999 (!VECTORP (instantiator) ||
|
|
173
|
3000 XVECTOR_LENGTH (instantiator) != DISP_TABLE_SIZE))
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|
169
|
3001 dead_wrong_type_argument (display_table_specifier_methods->predicate_symbol,
|
|
|
3002 instantiator);
|
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116
|
3003 }
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169
|
3004
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116
|
3005 DEFUN ("display-table-specifier-p", Fdisplay_table_specifier_p, 1, 1, 0, /*
|
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175
|
3006 Return non-nil if OBJECT is a display-table specifier.
|
|
116
|
3007 */
|
|
|
3008 (object))
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|
|
3009 {
|
|
173
|
3010 return DISPLAYTABLE_SPECIFIERP (object) ? Qt : Qnil;
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|
116
|
3011 }
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|
|
3012
|
|
0
|
3013
|
|
|
3014 /************************************************************************/
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|
|
3015 /* Initialization */
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|
|
3016 /************************************************************************/
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|
3017
|
|
|
3018 void
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|
|
3019 syms_of_specifier (void)
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|
|
3020 {
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|
|
3021 defsymbol (&Qspecifierp, "specifierp");
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|
3022
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|
3023 defsymbol (&Qconsole_type, "console-type");
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|
|
3024 defsymbol (&Qdevice_class, "device-class");
|
|
|
3025
|
|
|
3026 /* Qinteger, Qboolean, Qgeneric defined in general.c */
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|
|
3027 defsymbol (&Qnatnum, "natnum");
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|
|
3028
|
|
20
|
3029 DEFSUBR (Fvalid_specifier_type_p);
|
|
|
3030 DEFSUBR (Fspecifier_type_list);
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|
|
3031 DEFSUBR (Fmake_specifier);
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|
|
3032 DEFSUBR (Fspecifierp);
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|
|
3033 DEFSUBR (Fspecifier_type);
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|
|
3034
|
|
|
3035 DEFSUBR (Fvalid_specifier_locale_p);
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|
|
3036 DEFSUBR (Fvalid_specifier_domain_p);
|
|
|
3037 DEFSUBR (Fvalid_specifier_locale_type_p);
|
|
|
3038 DEFSUBR (Fspecifier_locale_type_from_locale);
|
|
|
3039
|
|
|
3040 DEFSUBR (Fvalid_specifier_tag_p);
|
|
|
3041 DEFSUBR (Fvalid_specifier_tag_set_p);
|
|
|
3042 DEFSUBR (Fcanonicalize_tag_set);
|
|
|
3043 DEFSUBR (Fdevice_matches_specifier_tag_set_p);
|
|
|
3044 DEFSUBR (Fdefine_specifier_tag);
|
|
|
3045 DEFSUBR (Fdevice_matching_specifier_tag_list);
|
|
|
3046 DEFSUBR (Fspecifier_tag_list);
|
|
|
3047 DEFSUBR (Fspecifier_tag_predicate);
|
|
|
3048
|
|
|
3049 DEFSUBR (Fcheck_valid_instantiator);
|
|
|
3050 DEFSUBR (Fvalid_instantiator_p);
|
|
|
3051 DEFSUBR (Fcheck_valid_inst_list);
|
|
|
3052 DEFSUBR (Fvalid_inst_list_p);
|
|
|
3053 DEFSUBR (Fcheck_valid_spec_list);
|
|
|
3054 DEFSUBR (Fvalid_spec_list_p);
|
|
|
3055 DEFSUBR (Fadd_spec_to_specifier);
|
|
|
3056 DEFSUBR (Fadd_spec_list_to_specifier);
|
|
|
3057 DEFSUBR (Fspecifier_spec_list);
|
|
|
3058 DEFSUBR (Fspecifier_specs);
|
|
|
3059 DEFSUBR (Fremove_specifier);
|
|
|
3060 DEFSUBR (Fcopy_specifier);
|
|
|
3061
|
|
|
3062 DEFSUBR (Fcheck_valid_specifier_matchspec);
|
|
|
3063 DEFSUBR (Fvalid_specifier_matchspec_p);
|
|
|
3064 DEFSUBR (Fspecifier_fallback);
|
|
|
3065 DEFSUBR (Fspecifier_instance);
|
|
|
3066 DEFSUBR (Fspecifier_matching_instance);
|
|
|
3067 DEFSUBR (Fspecifier_instance_from_inst_list);
|
|
|
3068 DEFSUBR (Fspecifier_matching_instance_from_inst_list);
|
|
|
3069 DEFSUBR (Fset_specifier_dirty_flag);
|
|
|
3070
|
|
|
3071 DEFSUBR (Fgeneric_specifier_p);
|
|
|
3072 DEFSUBR (Finteger_specifier_p);
|
|
|
3073 DEFSUBR (Fnatnum_specifier_p);
|
|
|
3074 DEFSUBR (Fboolean_specifier_p);
|
|
175
|
3075 DEFSUBR (Fdisplay_table_specifier_p);
|
|
0
|
3076
|
|
|
3077 /* Symbols pertaining to specifier creation. Specifiers are created
|
|
|
3078 in the syms_of() functions. */
|
|
|
3079
|
|
|
3080 /* locales are defined in general.c. */
|
|
|
3081
|
|
|
3082 defsymbol (&Qprepend, "prepend");
|
|
|
3083 defsymbol (&Qappend, "append");
|
|
|
3084 defsymbol (&Qremove_tag_set_prepend, "remove-tag-set-prepend");
|
|
|
3085 defsymbol (&Qremove_tag_set_append, "remove-tag-set-append");
|
|
|
3086 defsymbol (&Qremove_locale, "remove-locale");
|
|
|
3087 defsymbol (&Qremove_locale_type, "remove-locale-type");
|
|
|
3088 defsymbol (&Qremove_all, "remove-all");
|
|
|
3089
|
|
|
3090 defsymbol (&Qfallback, "fallback");
|
|
|
3091 }
|
|
|
3092
|
|
|
3093 void
|
|
|
3094 specifier_type_create (void)
|
|
|
3095 {
|
|
185
|
3096 the_specifier_type_entry_dynarr = Dynarr_new (specifier_type_entry);
|
|
0
|
3097
|
|
|
3098 Vspecifier_type_list = Qnil;
|
|
|
3099 staticpro (&Vspecifier_type_list);
|
|
|
3100
|
|
|
3101 INITIALIZE_SPECIFIER_TYPE (generic, "generic", "generic-specifier-p");
|
|
|
3102
|
|
|
3103 INITIALIZE_SPECIFIER_TYPE (integer, "integer", "integer-specifier-p");
|
|
|
3104
|
|
|
3105 SPECIFIER_HAS_METHOD (integer, validate);
|
|
|
3106
|
|
|
3107 INITIALIZE_SPECIFIER_TYPE (natnum, "natnum", "natnum-specifier-p");
|
|
|
3108
|
|
|
3109 SPECIFIER_HAS_METHOD (natnum, validate);
|
|
|
3110
|
|
|
3111 INITIALIZE_SPECIFIER_TYPE (boolean, "boolean", "boolean-specifier-p");
|
|
|
3112
|
|
|
3113 SPECIFIER_HAS_METHOD (boolean, validate);
|
|
116
|
3114
|
|
175
|
3115 INITIALIZE_SPECIFIER_TYPE (display_table, "display-table", "display-table-p");
|
|
116
|
3116
|
|
|
3117 SPECIFIER_HAS_METHOD (display_table, validate);
|
|
0
|
3118 }
|
|
|
3119
|
|
|
3120 void
|
|
|
3121 vars_of_specifier (void)
|
|
|
3122 {
|
|
|
3123 Vcached_specifiers = Qnil;
|
|
|
3124 staticpro (&Vcached_specifiers);
|
|
|
3125
|
|
|
3126 /* Do NOT mark through this, or specifiers will never be GC'd.
|
|
|
3127 This is the same deal as for weak hashtables. */
|
|
|
3128 Vall_specifiers = Qnil;
|
|
|
3129
|
|
|
3130 Vuser_defined_tags = Qnil;
|
|
|
3131 staticpro (&Vuser_defined_tags);
|
|
276
|
3132
|
|
|
3133 Vreveal_ghoste_specifiers = Qnil;
|
|
|
3134 staticpro (&Vreveal_ghoste_specifiers);
|
|
0
|
3135 }
|
