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428
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1 /* XEmacs routines to deal with case tables.
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2 Copyright (C) 1987, 1992, 1993, 1994 Free Software Foundation, Inc.
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3 Copyright (C) 1995 Sun Microsystems, Inc.
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793
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4 Copyright (C) 2002 Ben Wing.
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428
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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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771
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23 /* Synched up with: FSF 19.28. Between FSF 19.28 and 19.30, casetab.c
|
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428
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24 was rewritten to use junky FSF char tables. Meanwhile I rewrote it
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771
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25 to use more logical char tables. --ben */
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428
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26
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826
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27 /* Written by Howard Gayle. */
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428
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28
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29 /* Modified for Mule by Ben Wing. */
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30
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826
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31 /* The four tables in a case table are downcase, upcase, canon, and eqv.
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32 Each is a char-table. Their workings are rather non-obvious.
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33
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34 (1) `downcase' is the only obvious table: Map a character to its
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35 lowercase equivalent.
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771
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36
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826
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37 (2) `upcase' does *NOT* map a character to its uppercase equivalent,
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38 despite its name. Rather, it maps lowercase characters to their
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39 uppercase equivalent, and uppercase characters to *ANYTHING BUT* their
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40 uppercase equivalent (currently, their lowercase equivalent), and
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41 characters without case to themselves. It is used to determine if a
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42 character "has no case" (no uppercase or lowercase mapping). #### This
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43 is way bogus. Just use the obvious implementation of uppercase mapping
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44 and of NOCASE_P.
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446
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45
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826
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46 (3) `canon' maps each character to a "canonical" lowercase, such that if
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47 two different uppercase characters map to the same lowercase character,
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48 or vice versa, both characters will have the same entry in the canon
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49 table.
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446
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50
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826
|
51 (4) `equiv' lists the "equivalence classes" defined by `canon'. Imagine
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52 that all characters are divided into groups having the same `canon'
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53 entry; these groups are called "equivalence classes" and `equiv' lists
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54 them by linking the characters in each equivalence class together in a
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55 circular list.
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56
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57 `canon' is used when doing case-insensitive comparisons. `equiv' is
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58 used in the Boyer-Moore search code.
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59 */
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428
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60
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61 #include <config.h>
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62 #include "lisp.h"
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63 #include "buffer.h"
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64 #include "opaque.h"
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446
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65 #include "chartab.h"
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66 #include "casetab.h"
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428
|
67
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446
|
68 Lisp_Object Qcase_tablep, Qdowncase, Qupcase;
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69 Lisp_Object Vstandard_case_table;
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428
|
70
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446
|
71 Lisp_Object case_table_char (Lisp_Object ch, Lisp_Object table);
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428
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72
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|
826
|
73 #define STRING256_P(obj) ((STRINGP (obj) && string_char_length (obj) == 256))
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446
|
74
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75 static Lisp_Object
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76 mark_case_table (Lisp_Object obj)
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77 {
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78 Lisp_Case_Table *ct = XCASE_TABLE (obj);
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79
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80 mark_object (CASE_TABLE_DOWNCASE (ct));
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81 mark_object (CASE_TABLE_UPCASE (ct));
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82 mark_object (CASE_TABLE_CANON (ct));
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83 mark_object (CASE_TABLE_EQV (ct));
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|
84 return Qnil;
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85 }
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86
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|
|
87 static void
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88 print_case_table (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
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89 {
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90 Lisp_Case_Table *ct = XCASE_TABLE (obj);
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91 if (print_readably)
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|
826
|
92 printing_unreadable_object ("#<case-table 0x%x>", ct->header.uid);
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|
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93 write_fmt_string_lisp
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94 (printcharfun, "#<case-table downcase=%s upcase=%s canon=%s eqv=%s ", 4,
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95 CASE_TABLE_DOWNCASE (ct), CASE_TABLE_UPCASE (ct),
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96 CASE_TABLE_CANON (ct), CASE_TABLE_EQV (ct));
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97 write_fmt_string (printcharfun, "0x%x>", ct->header.uid);
|
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446
|
98 }
|
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99
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100 static const struct lrecord_description case_table_description [] = {
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101 { XD_LISP_OBJECT, offsetof (Lisp_Case_Table, downcase_table) },
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102 { XD_LISP_OBJECT, offsetof (Lisp_Case_Table, upcase_table) },
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103 { XD_LISP_OBJECT, offsetof (Lisp_Case_Table, case_canon_table) },
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104 { XD_LISP_OBJECT, offsetof (Lisp_Case_Table, case_eqv_table) },
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105 { XD_END }
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106 };
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107
|
|
934
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108
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|
|
109 #ifdef USE_KKCC
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110 DEFINE_LRECORD_IMPLEMENTATION("case-table", case_table,
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111 1, /*dumpable-flag*/
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112 mark_case_table, print_case_table, 0,
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113 0, 0, case_table_description, Lisp_Case_Table);
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114 #else /* not USE_KKCC */
|
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446
|
115 DEFINE_LRECORD_IMPLEMENTATION ("case-table", case_table,
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116 mark_case_table, print_case_table, 0,
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117 0, 0, case_table_description, Lisp_Case_Table);
|
|
934
|
118 #endif /* not USE_KKCC */
|
|
446
|
119
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|
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120 static Lisp_Object
|
|
826
|
121 allocate_case_table (int init_tables)
|
|
446
|
122 {
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|
|
123 Lisp_Case_Table *ct =
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124 alloc_lcrecord_type (Lisp_Case_Table, &lrecord_case_table);
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125
|
|
826
|
126 if (init_tables)
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|
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127 {
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|
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128 SET_CASE_TABLE_DOWNCASE (ct, MAKE_TRT_TABLE ());
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129 SET_CASE_TABLE_UPCASE (ct, MAKE_TRT_TABLE ());
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130 SET_CASE_TABLE_CANON (ct, MAKE_TRT_TABLE ());
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131 SET_CASE_TABLE_EQV (ct, MAKE_TRT_TABLE ());
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132 }
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133 else
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134 {
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135 SET_CASE_TABLE_DOWNCASE (ct, Qnil);
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136 SET_CASE_TABLE_UPCASE (ct, Qnil);
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137 SET_CASE_TABLE_CANON (ct, Qnil);
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138 SET_CASE_TABLE_EQV (ct, Qnil);
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|
139 }
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|
|
140 return wrap_case_table (ct);
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|
141 }
|
|
446
|
142
|
|
826
|
143 DEFUN ("make-case-table", Fmake_case_table, 0, 0, 0, /*
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144 Create a new, empty case table.
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145 */
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|
146 ())
|
|
|
147 {
|
|
|
148 return allocate_case_table (1);
|
|
446
|
149 }
|
|
428
|
150
|
|
|
151 DEFUN ("case-table-p", Fcase_table_p, 1, 1, 0, /*
|
|
444
|
152 Return t if OBJECT is a case table.
|
|
428
|
153 See `set-case-table' for more information on these data structures.
|
|
|
154 */
|
|
444
|
155 (object))
|
|
428
|
156 {
|
|
446
|
157 if (CASE_TABLEP (object))
|
|
|
158 return Qt;
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|
|
159 else
|
|
|
160 {
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|
|
161 Lisp_Object down, up, canon, eqv;
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|
|
162 if (!CONSP (object))
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|
163 return Qnil;
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|
|
164 down = XCAR (object); object = XCDR (object);
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|
|
165 if (!CONSP (object))
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166 return Qnil;
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|
167 up = XCAR (object); object = XCDR (object);
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|
|
168 if (!CONSP (object))
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169 return Qnil;
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|
170 canon = XCAR (object); object = XCDR (object);
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|
|
171 if (!CONSP (object))
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|
|
172 return Qnil;
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|
|
173 eqv = XCAR (object);
|
|
428
|
174
|
|
446
|
175 return ((STRING256_P (down)
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|
|
176 && (NILP (up) || STRING256_P (up))
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|
|
177 && ((NILP (canon) && NILP (eqv))
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178 || STRING256_P (canon))
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179 && (NILP (eqv) || STRING256_P (eqv)))
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|
180 ? Qt : Qnil);
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|
|
181
|
|
|
182 }
|
|
428
|
183 }
|
|
|
184
|
|
|
185 static Lisp_Object
|
|
444
|
186 check_case_table (Lisp_Object object)
|
|
428
|
187 {
|
|
446
|
188 /* This function can GC */
|
|
444
|
189 while (NILP (Fcase_table_p (object)))
|
|
|
190 object = wrong_type_argument (Qcase_tablep, object);
|
|
|
191 return object;
|
|
428
|
192 }
|
|
|
193
|
|
446
|
194 Lisp_Object
|
|
|
195 case_table_char (Lisp_Object ch, Lisp_Object table)
|
|
|
196 {
|
|
|
197 Lisp_Object ct_char;
|
|
826
|
198 ct_char = get_char_table (XCHAR (ch), table);
|
|
446
|
199 if (NILP (ct_char))
|
|
|
200 return ch;
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|
|
201 else
|
|
|
202 return ct_char;
|
|
|
203 }
|
|
|
204
|
|
|
205 DEFUN ("get-case-table", Fget_case_table, 3, 3, 0, /*
|
|
|
206 Return CHAR-CASE version of CHARACTER in CASE-TABLE.
|
|
|
207
|
|
826
|
208 CHAR-CASE is either `downcase' or `upcase'.
|
|
446
|
209 */
|
|
|
210 (char_case, character, case_table))
|
|
|
211 {
|
|
|
212 CHECK_CHAR (character);
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|
|
213 CHECK_CASE_TABLE (case_table);
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|
|
214 if (EQ (char_case, Qdowncase))
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|
|
215 return case_table_char (character, XCASE_TABLE_DOWNCASE (case_table));
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|
|
216 else if (EQ (char_case, Qupcase))
|
|
|
217 return case_table_char (character, XCASE_TABLE_UPCASE (case_table));
|
|
|
218 else
|
|
563
|
219 invalid_constant ("Char case must be downcase or upcase", char_case);
|
|
446
|
220
|
|
|
221 return Qnil; /* Not reached. */
|
|
|
222 }
|
|
|
223
|
|
|
224 DEFUN ("put-case-table", Fput_case_table, 4, 4, 0, /*
|
|
|
225 Set CHAR-CASE version of CHARACTER to be VALUE in CASE-TABLE.
|
|
|
226
|
|
826
|
227 CHAR-CASE is either `downcase' or `upcase'.
|
|
446
|
228 See also `put-case-table-pair'.
|
|
|
229 */
|
|
|
230 (char_case, character, value, case_table))
|
|
|
231 {
|
|
|
232 CHECK_CHAR (character);
|
|
|
233 CHECK_CHAR (value);
|
|
|
234
|
|
|
235 if (EQ (char_case, Qdowncase))
|
|
|
236 {
|
|
|
237 Fput_char_table (character, value, XCASE_TABLE_DOWNCASE (case_table));
|
|
826
|
238 /* This one is not at all intuitive. See comment at top of file. */
|
|
446
|
239 Fput_char_table (character, value, XCASE_TABLE_UPCASE (case_table));
|
|
|
240 }
|
|
|
241 else if (EQ (char_case, Qupcase))
|
|
|
242 {
|
|
|
243 Fput_char_table (character, value, XCASE_TABLE_UPCASE (case_table));
|
|
826
|
244 Fput_char_table (character, character,
|
|
|
245 XCASE_TABLE_DOWNCASE (case_table));
|
|
446
|
246 }
|
|
|
247 else
|
|
826
|
248 invalid_constant ("CHAR-CASE must be downcase or upcase", char_case);
|
|
446
|
249
|
|
826
|
250 XCASE_TABLE (case_table)->dirty = 1;
|
|
446
|
251 return Qnil;
|
|
|
252 }
|
|
|
253
|
|
|
254 DEFUN ("put-case-table-pair", Fput_case_table_pair, 3, 3, 0, /*
|
|
|
255 Make UC and LC a pair of inter-case-converting letters in CASE-TABLE.
|
|
|
256 UC is an uppercase character and LC is a downcase character.
|
|
|
257 */
|
|
|
258 (uc, lc, case_table))
|
|
|
259 {
|
|
|
260 CHECK_CHAR (uc);
|
|
|
261 CHECK_CHAR (lc);
|
|
|
262 CHECK_CASE_TABLE (case_table);
|
|
|
263
|
|
|
264 Fput_char_table (lc, lc, XCASE_TABLE_DOWNCASE (case_table));
|
|
|
265 Fput_char_table (uc, lc, XCASE_TABLE_UPCASE (case_table));
|
|
|
266 Fput_char_table (uc, lc, XCASE_TABLE_DOWNCASE (case_table));
|
|
|
267 Fput_char_table (lc, uc, XCASE_TABLE_UPCASE (case_table));
|
|
|
268
|
|
826
|
269 XCASE_TABLE (case_table)->dirty = 1;
|
|
446
|
270 return Qnil;
|
|
|
271 }
|
|
|
272
|
|
|
273 DEFUN ("copy-case-table", Fcopy_case_table, 1, 1, 0, /*
|
|
|
274 Return a new case table which is a copy of CASE-TABLE
|
|
|
275 */
|
|
|
276 (case_table))
|
|
|
277 {
|
|
|
278 Lisp_Object new_obj;
|
|
|
279 CHECK_CASE_TABLE (case_table);
|
|
|
280
|
|
826
|
281 new_obj = allocate_case_table (0);
|
|
446
|
282 XSET_CASE_TABLE_DOWNCASE
|
|
|
283 (new_obj, Fcopy_char_table (XCASE_TABLE_DOWNCASE (case_table)));
|
|
|
284 XSET_CASE_TABLE_UPCASE
|
|
|
285 (new_obj, Fcopy_char_table (XCASE_TABLE_UPCASE (case_table)));
|
|
|
286 XSET_CASE_TABLE_CANON
|
|
|
287 (new_obj, Fcopy_char_table (XCASE_TABLE_CANON (case_table)));
|
|
|
288 XSET_CASE_TABLE_EQV
|
|
|
289 (new_obj, Fcopy_char_table (XCASE_TABLE_EQV (case_table)));
|
|
|
290 return new_obj;
|
|
|
291 }
|
|
|
292
|
|
826
|
293 static int
|
|
|
294 compute_canon_mapper (struct chartab_range *range,
|
|
|
295 Lisp_Object table, Lisp_Object val, void *arg)
|
|
|
296 {
|
|
|
297 Lisp_Object casetab = VOID_TO_LISP (arg);
|
|
|
298 if (range->type == CHARTAB_RANGE_CHAR)
|
|
|
299 SET_TRT_TABLE_OF (XCASE_TABLE_CANON (casetab), range->ch,
|
|
|
300 TRT_TABLE_OF (XCASE_TABLE_DOWNCASE (casetab),
|
|
|
301 TRT_TABLE_OF (XCASE_TABLE_UPCASE (casetab),
|
|
|
302 XCHAR (val))));
|
|
|
303
|
|
|
304 return 0;
|
|
|
305 }
|
|
|
306
|
|
|
307 static int
|
|
|
308 initialize_identity_mapper (struct chartab_range *range,
|
|
|
309 Lisp_Object table, Lisp_Object val, void *arg)
|
|
|
310 {
|
|
|
311 Lisp_Object trt = VOID_TO_LISP (arg);
|
|
|
312 if (range->type == CHARTAB_RANGE_CHAR)
|
|
|
313 SET_TRT_TABLE_OF (trt, range->ch, range->ch);
|
|
|
314
|
|
|
315 return 0;
|
|
|
316 }
|
|
|
317
|
|
|
318 static int
|
|
|
319 compute_up_or_eqv_mapper (struct chartab_range *range,
|
|
|
320 Lisp_Object table, Lisp_Object val, void *arg)
|
|
|
321 {
|
|
|
322 Lisp_Object inverse = VOID_TO_LISP (arg);
|
|
867
|
323 Ichar toch = XCHAR (val);
|
|
826
|
324
|
|
|
325 if (range->type == CHARTAB_RANGE_CHAR && range->ch != toch)
|
|
|
326 {
|
|
867
|
327 Ichar c = TRT_TABLE_OF (inverse, toch);
|
|
826
|
328 SET_TRT_TABLE_OF (inverse, toch, range->ch);
|
|
|
329 SET_TRT_TABLE_OF (inverse, range->ch, c);
|
|
|
330 }
|
|
|
331
|
|
|
332 return 0;
|
|
|
333 }
|
|
|
334
|
|
|
335 /* Recomputing the canonical and equivalency tables from scratch is a
|
|
|
336 lengthy process, and doing them incrementally is extremely difficult or
|
|
|
337 perhaps impossible -- and certainly not worth it. To avoid lots of
|
|
|
338 excessive recomputation when lots of stuff is incrementally added, we
|
|
|
339 just store a dirty flag and then recompute when a value from the canon
|
|
|
340 or eqv tables is actually needed. */
|
|
|
341
|
|
|
342 void
|
|
|
343 recompute_case_table (Lisp_Object casetab)
|
|
|
344 {
|
|
|
345 struct chartab_range range;
|
|
|
346
|
|
|
347 range.type = CHARTAB_RANGE_ALL;
|
|
|
348 /* Turn off dirty flag first so we don't get infinite recursion when
|
|
|
349 retrieving the values below! */
|
|
|
350 XCASE_TABLE (casetab)->dirty = 0;
|
|
|
351 map_char_table (XCASE_TABLE_DOWNCASE (casetab), &range,
|
|
|
352 compute_canon_mapper, LISP_TO_VOID (casetab));
|
|
|
353 map_char_table (XCASE_TABLE_CANON (casetab), &range,
|
|
|
354 initialize_identity_mapper,
|
|
|
355 LISP_TO_VOID (XCASE_TABLE_EQV (casetab)));
|
|
|
356 map_char_table (XCASE_TABLE_CANON (casetab), &range,
|
|
|
357 compute_up_or_eqv_mapper,
|
|
|
358 LISP_TO_VOID (XCASE_TABLE_EQV (casetab)));
|
|
|
359 }
|
|
|
360
|
|
428
|
361 DEFUN ("current-case-table", Fcurrent_case_table, 0, 1, 0, /*
|
|
|
362 Return the case table of BUFFER, which defaults to the current buffer.
|
|
|
363 */
|
|
|
364 (buffer))
|
|
|
365 {
|
|
|
366 struct buffer *buf = decode_buffer (buffer, 0);
|
|
|
367
|
|
446
|
368 return buf->case_table;
|
|
428
|
369 }
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|
|
370
|
|
|
371 DEFUN ("standard-case-table", Fstandard_case_table, 0, 0, 0, /*
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372 Return the standard case table.
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373 This is the one used for new buffers.
|
|
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374 */
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|
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375 ())
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|
|
376 {
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446
|
377 return Vstandard_case_table;
|
|
428
|
378 }
|
|
|
379
|
|
826
|
380 static void
|
|
|
381 convert_old_style_syntax_string (Lisp_Object table, Lisp_Object string)
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|
|
382 {
|
|
867
|
383 Ichar i;
|
|
826
|
384
|
|
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385 for (i = 0; i < 256; i++)
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|
867
|
386 SET_TRT_TABLE_OF (table, i, string_ichar (string, i));
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826
|
387 }
|
|
|
388
|
|
|
389 static Lisp_Object
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|
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390 set_case_table (Lisp_Object table, int standard)
|
|
|
391 {
|
|
|
392 /* This function can GC */
|
|
|
393 struct buffer *buf =
|
|
|
394 standard ? XBUFFER (Vbuffer_defaults) : current_buffer;
|
|
|
395
|
|
|
396 check_case_table (table);
|
|
|
397
|
|
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398 if (CASE_TABLEP (table))
|
|
|
399 {
|
|
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400 if (standard)
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401 Vstandard_case_table = table;
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|
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402
|
|
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403 buf->case_table = table;
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|
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404 }
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405 else
|
|
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406 {
|
|
|
407 /* For backward compatibility. */
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|
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408 Lisp_Object down, up, canon, eqv, tail = table;
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409 Lisp_Object casetab =
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410 standard ? Vstandard_case_table : buf->case_table;
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411 struct chartab_range range;
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412
|
|
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413 range.type = CHARTAB_RANGE_ALL;
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414
|
|
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415 Freset_char_table (XCASE_TABLE_DOWNCASE (casetab));
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416 Freset_char_table (XCASE_TABLE_UPCASE (casetab));
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417 Freset_char_table (XCASE_TABLE_CANON (casetab));
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418 Freset_char_table (XCASE_TABLE_EQV (casetab));
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|
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419
|
|
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420 down = XCAR (tail); tail = XCDR (tail);
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|
|
421 up = XCAR (tail); tail = XCDR (tail);
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|
|
422 canon = XCAR (tail); tail = XCDR (tail);
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|
|
423 eqv = XCAR (tail);
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|
|
424
|
|
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425 convert_old_style_syntax_string (XCASE_TABLE_DOWNCASE (casetab), down);
|
|
|
426
|
|
|
427 if (NILP (up))
|
|
|
428 {
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|
|
429 map_char_table (XCASE_TABLE_DOWNCASE (casetab), &range,
|
|
|
430 initialize_identity_mapper,
|
|
|
431 LISP_TO_VOID (XCASE_TABLE_UPCASE (casetab)));
|
|
|
432 map_char_table (XCASE_TABLE_DOWNCASE (casetab), &range,
|
|
|
433 compute_up_or_eqv_mapper,
|
|
|
434 LISP_TO_VOID (XCASE_TABLE_UPCASE (casetab)));
|
|
|
435 }
|
|
|
436 else
|
|
|
437 convert_old_style_syntax_string (XCASE_TABLE_UPCASE (casetab), up);
|
|
|
438
|
|
|
439 if (NILP (canon))
|
|
|
440 map_char_table (XCASE_TABLE_DOWNCASE (casetab), &range,
|
|
|
441 compute_canon_mapper, LISP_TO_VOID (casetab));
|
|
|
442 else
|
|
|
443 convert_old_style_syntax_string (XCASE_TABLE_CANON (casetab), canon);
|
|
|
444
|
|
|
445 if (NILP (eqv))
|
|
|
446 {
|
|
|
447 map_char_table (XCASE_TABLE_CANON (casetab), &range,
|
|
|
448 initialize_identity_mapper,
|
|
|
449 LISP_TO_VOID (XCASE_TABLE_EQV (casetab)));
|
|
|
450 map_char_table (XCASE_TABLE_CANON (casetab), &range,
|
|
|
451 compute_up_or_eqv_mapper,
|
|
|
452 LISP_TO_VOID (XCASE_TABLE_EQV (casetab)));
|
|
|
453 }
|
|
|
454 else
|
|
|
455 convert_old_style_syntax_string (XCASE_TABLE_CANON (casetab), eqv);
|
|
|
456 }
|
|
|
457
|
|
|
458 return buf->case_table;
|
|
|
459 }
|
|
428
|
460
|
|
|
461 DEFUN ("set-case-table", Fset_case_table, 1, 1, 0, /*
|
|
444
|
462 Select CASE-TABLE as the new case table for the current buffer.
|
|
446
|
463 A case table is a case-table object or list
|
|
|
464 (DOWNCASE UPCASE CANONICALIZE EQUIVALENCES)
|
|
428
|
465 where each element is either nil or a string of length 256.
|
|
446
|
466 The latter is provided for backward-compatibility.
|
|
428
|
467 DOWNCASE maps each character to its lower-case equivalent.
|
|
|
468 UPCASE maps each character to its upper-case equivalent;
|
|
|
469 if lower and upper case characters are in 1-1 correspondence,
|
|
|
470 you may use nil and the upcase table will be deduced from DOWNCASE.
|
|
|
471 CANONICALIZE maps each character to a canonical equivalent;
|
|
|
472 any two characters that are related by case-conversion have the same
|
|
|
473 canonical equivalent character; it may be nil, in which case it is
|
|
|
474 deduced from DOWNCASE and UPCASE.
|
|
|
475 EQUIVALENCES is a map that cyclicly permutes each equivalence class
|
|
|
476 (of characters with the same canonical equivalent); it may be nil,
|
|
|
477 in which case it is deduced from CANONICALIZE.
|
|
|
478
|
|
446
|
479 See also `get-case-table', `put-case-table' and `put-case-table-pair'.
|
|
428
|
480 */
|
|
444
|
481 (case_table))
|
|
428
|
482 {
|
|
446
|
483 /* This function can GC */
|
|
444
|
484 return set_case_table (case_table, 0);
|
|
428
|
485 }
|
|
|
486
|
|
|
487 DEFUN ("set-standard-case-table", Fset_standard_case_table, 1, 1, 0, /*
|
|
444
|
488 Select CASE-TABLE as the new standard case table for new buffers.
|
|
428
|
489 See `set-case-table' for more info on case tables.
|
|
|
490 */
|
|
444
|
491 (case_table))
|
|
428
|
492 {
|
|
446
|
493 /* This function can GC */
|
|
444
|
494 return set_case_table (case_table, 1);
|
|
428
|
495 }
|
|
|
496
|
|
|
497
|
|
|
498 void
|
|
|
499 syms_of_casetab (void)
|
|
|
500 {
|
|
446
|
501 INIT_LRECORD_IMPLEMENTATION (case_table);
|
|
|
502
|
|
563
|
503 DEFSYMBOL_MULTIWORD_PREDICATE (Qcase_tablep);
|
|
|
504 DEFSYMBOL (Qdowncase);
|
|
|
505 DEFSYMBOL (Qupcase);
|
|
428
|
506
|
|
826
|
507 DEFSUBR (Fmake_case_table);
|
|
428
|
508 DEFSUBR (Fcase_table_p);
|
|
446
|
509 DEFSUBR (Fget_case_table);
|
|
|
510 DEFSUBR (Fput_case_table);
|
|
|
511 DEFSUBR (Fput_case_table_pair);
|
|
428
|
512 DEFSUBR (Fcurrent_case_table);
|
|
|
513 DEFSUBR (Fstandard_case_table);
|
|
446
|
514 DEFSUBR (Fcopy_case_table);
|
|
428
|
515 DEFSUBR (Fset_case_table);
|
|
|
516 DEFSUBR (Fset_standard_case_table);
|
|
|
517 }
|
|
|
518
|
|
|
519 void
|
|
|
520 complex_vars_of_casetab (void)
|
|
|
521 {
|
|
867
|
522 REGISTER Ichar i;
|
|
428
|
523
|
|
446
|
524 staticpro (&Vstandard_case_table);
|
|
428
|
525
|
|
826
|
526 Vstandard_case_table = allocate_case_table (1);
|
|
428
|
527
|
|
|
528 for (i = 0; i < 256; i++)
|
|
|
529 {
|
|
|
530 unsigned char lowered = tolower (i);
|
|
|
531
|
|
826
|
532 SET_TRT_TABLE_OF (XCASE_TABLE_DOWNCASE (Vstandard_case_table), i,
|
|
|
533 lowered);
|
|
428
|
534 }
|
|
|
535
|
|
|
536 for (i = 0; i < 256; i++)
|
|
|
537 {
|
|
|
538 unsigned char flipped = (isupper (i) ? tolower (i)
|
|
|
539 : (islower (i) ? toupper (i) : i));
|
|
|
540
|
|
826
|
541 SET_TRT_TABLE_OF (XCASE_TABLE_UPCASE (Vstandard_case_table), i,
|
|
|
542 flipped);
|
|
428
|
543 }
|
|
826
|
544
|
|
|
545 recompute_case_table (Vstandard_case_table);
|
|
428
|
546 }
|
