summaryrefslogtreecommitdiff
path: root/enc/iso_8859_13.c
blob: f29cb2e2816e31f5b30c58177318891d9081bd74 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
/**********************************************************************
  iso8859_13.c -  Oniguruma (regular expression library)
**********************************************************************/
/*-
 * Copyright (c) 2002-2007  K.Kosako  <sndgk393 AT ybb DOT ne DOT jp>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include "regenc.h"

#define ENC_ISO_8859_13_TO_LOWER_CASE(c) EncISO_8859_13_ToLowerCaseTable[c]
#define ENC_IS_ISO_8859_13_CTYPE(code,ctype) \
  ((EncISO_8859_13_CtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)

static const UChar EncISO_8859_13_ToLowerCaseTable[256] = {
  '\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007',
  '\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017',
  '\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027',
  '\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037',
  '\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047',
  '\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057',
  '\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067',
  '\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077',
  '\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
  '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
  '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
  '\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137',
  '\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
  '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
  '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
  '\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177',
  '\200', '\201', '\202', '\203', '\204', '\205', '\206', '\207',
  '\210', '\211', '\212', '\213', '\214', '\215', '\216', '\217',
  '\220', '\221', '\222', '\223', '\224', '\225', '\226', '\227',
  '\230', '\231', '\232', '\233', '\234', '\235', '\236', '\237',
  '\240', '\241', '\242', '\243', '\244', '\245', '\246', '\247',
  '\270', '\251', '\272', '\253', '\254', '\255', '\256', '\277',
  '\260', '\261', '\262', '\263', '\264', '\265', '\266', '\267',
  '\270', '\271', '\272', '\273', '\274', '\275', '\276', '\277',
  '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
  '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
  '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\327',
  '\370', '\371', '\372', '\373', '\374', '\375', '\376', '\337',
  '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
  '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
  '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
  '\370', '\371', '\372', '\373', '\374', '\375', '\376', '\377'
};

static const unsigned short EncISO_8859_13_CtypeTable[256] = {
  0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
  0x4008, 0x420c, 0x4209, 0x4208, 0x4208, 0x4208, 0x4008, 0x4008,
  0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
  0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
  0x4284, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
  0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
  0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0,
  0x78b0, 0x78b0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
  0x41a0, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x74a2,
  0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2,
  0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2,
  0x74a2, 0x74a2, 0x74a2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x51a0,
  0x41a0, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x70e2,
  0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2,
  0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2,
  0x70e2, 0x70e2, 0x70e2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x4008,
  0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
  0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
  0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
  0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
  0x0284, 0x01a0, 0x00a0, 0x00a0, 0x00a0, 0x01a0, 0x00a0, 0x00a0,
  0x34a2, 0x00a0, 0x34a2, 0x01a0, 0x00a0, 0x01a0, 0x00a0, 0x34a2,
  0x00a0, 0x00a0, 0x10a0, 0x10a0, 0x01a0, 0x30e2, 0x00a0, 0x01a0,
  0x30e2, 0x10a0, 0x30e2, 0x01a0, 0x10a0, 0x10a0, 0x10a0, 0x30e2,
  0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
  0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
  0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x00a0,
  0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x30e2,
  0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
  0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
  0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x00a0,
  0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x01a0
};

static int
mbc_case_fold(OnigCaseFoldType flag,
			  const UChar** pp, const UChar* end ARG_UNUSED,
			  UChar* lower, OnigEncoding enc ARG_UNUSED)
{
  const UChar* p = *pp;

  if (*p == 0xdf && (flag & INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR) != 0) {
    *lower++ = 's';
    *lower   = 's';
    (*pp)++;
    return 2;
  }

  *lower = ENC_ISO_8859_13_TO_LOWER_CASE(*p);
  (*pp)++;
  return 1;
}

#if 0
static int
is_mbc_ambiguous(OnigCaseFoldType flag, const UChar** pp, const UChar* end)
{
  int v;
  const UChar* p = *pp;

  if (*p == 0xdf && (flag & INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR) != 0) {
    (*pp)++;
    return TRUE;
  }

  (*pp)++;
  v = (EncISO_8859_13_CtypeTable[*p] & (BIT_CTYPE_UPPER | BIT_CTYPE_LOWER));
  if ((v | BIT_CTYPE_LOWER) != 0) {
    /* 0xdf, 0xb5 are lower case letter, but can't convert. */
    if (*p == 0xb5)
      return FALSE;
    else
      return TRUE;
  }

  return (v != 0 ? TRUE : FALSE);
}
#endif

static int
is_code_ctype(OnigCodePoint code, unsigned int ctype, OnigEncoding enc ARG_UNUSED)
{
  if (code < 256)
    return ENC_IS_ISO_8859_13_CTYPE(code, ctype);
  else
    return FALSE;
}

static const OnigPairCaseFoldCodes CaseFoldMap[] = {
 { 0xc0, 0xe0 },
 { 0xc1, 0xe1 },
 { 0xc2, 0xe2 },
 { 0xc3, 0xe3 },
 { 0xc4, 0xe4 },
 { 0xc5, 0xe5 },
 { 0xc6, 0xe6 },
 { 0xc7, 0xe7 },
 { 0xc8, 0xe8 },
 { 0xc9, 0xe9 },
 { 0xca, 0xea },
 { 0xcb, 0xeb },
 { 0xcc, 0xec },
 { 0xcd, 0xed },
 { 0xce, 0xee },
 { 0xcf, 0xef },

 { 0xd0, 0xf0 },
 { 0xd1, 0xf1 },
 { 0xd2, 0xf2 },
 { 0xd3, 0xf3 },
 { 0xd4, 0xf4 },
 { 0xd5, 0xf5 },
 { 0xd6, 0xf6 },
 { 0xd8, 0xf8 },
 { 0xd9, 0xf9 },
 { 0xda, 0xfa },
 { 0xdb, 0xfb },
 { 0xdc, 0xfc },
 { 0xdd, 0xfd },
 { 0xde, 0xfe }
};

static int
apply_all_case_fold(OnigCaseFoldType flag,
				OnigApplyAllCaseFoldFunc f, void* arg,
				OnigEncoding enc ARG_UNUSED)
{
  return onigenc_apply_all_case_fold_with_map(
             sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 1,
             flag, f, arg);
}

static int
get_case_fold_codes_by_str(OnigCaseFoldType flag,
				       const OnigUChar* p, const OnigUChar* end,
				       OnigCaseFoldCodeItem items[],
				       OnigEncoding enc ARG_UNUSED)
{
  return onigenc_get_case_fold_codes_by_str_with_map(
	     sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 1,
	     flag, p, end, items);
}

OnigEncodingDefine(iso_8859_13, ISO_8859_13) = {
  onigenc_single_byte_mbc_enc_len,
  "ISO-8859-13",  /* name */
  1,             /* max enc length */
  1,             /* min enc length */
  onigenc_is_mbc_newline_0x0a,
  onigenc_single_byte_mbc_to_code,
  onigenc_single_byte_code_to_mbclen,
  onigenc_single_byte_code_to_mbc,
  mbc_case_fold,
  apply_all_case_fold,
  get_case_fold_codes_by_str,
  onigenc_minimum_property_name_to_ctype,
  is_code_ctype,
  onigenc_not_support_get_ctype_code_range,
  onigenc_single_byte_left_adjust_char_head,
  onigenc_always_true_is_allowed_reverse_match
};
ENC_ALIAS("ISO8859-13", "ISO-8859-13")

/*
 * Name: windows-1257
 * MIBenum: 2257
 * Link: http://www.iana.org/assignments/character-sets
 * Link: http://www.microsoft.com/globaldev/reference/sbcs/1257.mspx
 * Link: http://en.wikipedia.org/wiki/Windows-1257
 */
ENC_REPLICATE("Windows-1257", "ISO-8859-13")
ENC_ALIAS("CP1257", "Windows-1257")