Ruby  1.9.3p484(2013-11-22revision43786)
koi8_u.c
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1 /**********************************************************************
2  koi8_u.c - Oniguruma (regular expression library)
3 **********************************************************************/
4 /*-
5  * Copyright (c) 2002-2008 K.Kosako <sndgk393 AT ybb DOT ne DOT jp>
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  * notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  * notice, this list of conditions and the following disclaimer in the
15  * documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 #include "regenc.h"
31 
32 #define ENC_KOI8_U_TO_LOWER_CASE(c) EncKOI8_U_ToLowerCaseTable[c]
33 #define ENC_IS_KOI8_U_CTYPE(code,ctype) \
34  ((EncKOI8_U_CtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)
35 
36 static const UChar EncKOI8_U_ToLowerCaseTable[256] = {
37  '\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007',
38  '\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017',
39  '\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027',
40  '\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037',
41  '\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047',
42  '\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057',
43  '\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067',
44  '\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077',
45  '\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
46  '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
47  '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
48  '\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137',
49  '\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
50  '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
51  '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
52  '\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177',
53  '\200', '\201', '\202', '\203', '\204', '\205', '\206', '\207',
54  '\210', '\211', '\212', '\213', '\214', '\215', '\216', '\217',
55  '\220', '\221', '\222', '\223', '\224', '\225', '\226', '\227',
56  '\230', '\231', '\232', '\233', '\234', '\235', '\236', '\237',
57  '\240', '\241', '\242', '\243', '\244', '\245', '\246', '\247',
58  '\250', '\251', '\252', '\253', '\254', '\255', '\256', '\257',
59  '\260', '\261', '\262', '\243', '\244', '\265', '\246', '\247',
60  '\270', '\271', '\272', '\273', '\274', '\255', '\276', '\277',
61  '\300', '\301', '\302', '\303', '\304', '\305', '\306', '\307',
62  '\310', '\311', '\312', '\313', '\314', '\315', '\316', '\317',
63  '\320', '\321', '\322', '\323', '\324', '\325', '\326', '\327',
64  '\330', '\331', '\332', '\333', '\334', '\335', '\336', '\337',
65  '\300', '\301', '\302', '\303', '\304', '\305', '\306', '\307',
66  '\310', '\311', '\312', '\313', '\314', '\315', '\316', '\317',
67  '\320', '\321', '\322', '\323', '\324', '\325', '\326', '\327',
68  '\330', '\331', '\332', '\333', '\334', '\335', '\336', '\337'
69 };
70 
71 static const unsigned short EncKOI8_U_CtypeTable[256] = {
72  0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
73  0x4008, 0x420c, 0x4209, 0x4208, 0x4208, 0x4208, 0x4008, 0x4008,
74  0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
75  0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
76  0x4284, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
77  0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
78  0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0,
79  0x78b0, 0x78b0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
80  0x41a0, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x74a2,
81  0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2,
82  0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2,
83  0x74a2, 0x74a2, 0x74a2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x51a0,
84  0x41a0, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x70e2,
85  0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2,
86  0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2,
87  0x70e2, 0x70e2, 0x70e2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x4008,
88  0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0,
89  0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0,
90  0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0,
91  0x00a0, 0x00a0, 0x0284, 0x00a0, 0x00a0, 0x10a0, 0x01a0, 0x00a0,
92  0x00a0, 0x00a0, 0x00a0, 0x30e2, 0x30e2, 0x00a0, 0x30e2, 0x30e2,
93  0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x30e2, 0x00a0, 0x00a0,
94  0x00a0, 0x00a0, 0x00a0, 0x34a2, 0x34a2, 0x00a0, 0x34a2, 0x34a2,
95  0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x34a2, 0x00a0, 0x00a0,
96  0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
97  0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
98  0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
99  0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
100  0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
101  0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
102  0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
103  0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2
104 };
105 
106 static int
108  const UChar** pp, const UChar* end ARG_UNUSED,
109  UChar* lower, OnigEncoding enc ARG_UNUSED)
110 {
111  const UChar* p = *pp;
112 
113  *lower = ENC_KOI8_U_TO_LOWER_CASE(*p);
114  (*pp)++;
115  return 1;
116 }
117 
118 #if 0
119 static int
120 koi8_u_is_mbc_ambiguous(OnigCaseFoldType flag, const UChar** pp,
121  const UChar* end, OnigEncoding enc ARG_UNUSED)
122 {
123  int v;
124  const UChar* p = *pp;
125 
126  (*pp)++;
128  return (v != 0 ? TRUE : FALSE);
129 }
130 #endif
131 
132 static int
133 koi8_u_is_code_ctype(OnigCodePoint code, unsigned int ctype,
134  OnigEncoding enc ARG_UNUSED)
135 {
136  if (code < 256)
137  return ENC_IS_KOI8_U_CTYPE(code, ctype);
138  else
139  return FALSE;
140 }
141 
143  { 0xa3, 0xb3 },
144  { 0xa4, 0xb4 },
145  { 0xa6, 0xb6 },
146  { 0xa7, 0xb7 },
147  { 0xad, 0xbd },
148 
149  { 0xc0, 0xe0 },
150  { 0xc1, 0xe1 },
151  { 0xc2, 0xe2 },
152  { 0xc3, 0xe3 },
153  { 0xc4, 0xe4 },
154  { 0xc5, 0xe5 },
155  { 0xc6, 0xe6 },
156  { 0xc7, 0xe7 },
157  { 0xc8, 0xe8 },
158  { 0xc9, 0xe9 },
159  { 0xca, 0xea },
160  { 0xcb, 0xeb },
161  { 0xcc, 0xec },
162  { 0xcd, 0xed },
163  { 0xce, 0xee },
164  { 0xcf, 0xef },
165 
166  { 0xd0, 0xf0 },
167  { 0xd1, 0xf1 },
168  { 0xd2, 0xf2 },
169  { 0xd3, 0xf3 },
170  { 0xd4, 0xf4 },
171  { 0xd5, 0xf5 },
172  { 0xd6, 0xf6 },
173  { 0xd7, 0xf7 },
174  { 0xd8, 0xf8 },
175  { 0xd9, 0xf9 },
176  { 0xda, 0xfa },
177  { 0xdb, 0xfb },
178  { 0xdc, 0xfc },
179  { 0xdd, 0xfd },
180  { 0xde, 0xfe },
181  { 0xdf, 0xff }
182 };
183 
184 static int
187  void* arg, OnigEncoding enc ARG_UNUSED)
188 {
190  sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 0,
191  flag, f, arg);
192 }
193 
194 static int
196  const OnigUChar* p, const OnigUChar* end,
197  OnigCaseFoldCodeItem items[], OnigEncoding enc ARG_UNUSED)
198 {
200  sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 0,
201  flag, p, end, items);
202 }
203 
204 OnigEncodingDefine(koi8_u, KOI8_U) = {
206  "KOI8-U", /* name */
207  1, /* max enc length */
208  1, /* min enc length */
221 };
222