1/**********************************************************************
2  iso8859_14.c -  Oniguruma (regular expression library)
3**********************************************************************/
4/*-
5 * Copyright (c) 2002-2007  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_ISO_8859_14_TO_LOWER_CASE(c) EncISO_8859_14_ToLowerCaseTable[c]
33#define ENC_IS_ISO_8859_14_CTYPE(code,ctype) \
34  ((EncISO_8859_14_CtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)
35
36static const UChar EncISO_8859_14_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', '\242', '\242', '\243', '\245', '\245', '\253', '\247',
58  '\270', '\251', '\272', '\253', '\274', '\255', '\256', '\377',
59  '\261', '\261', '\263', '\263', '\265', '\265', '\266', '\271',
60  '\270', '\271', '\272', '\277', '\274', '\276', '\276', '\277',
61  '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
62  '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
63  '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
64  '\370', '\371', '\372', '\373', '\374', '\375', '\376', '\337',
65  '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
66  '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
67  '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
68  '\370', '\371', '\372', '\373', '\374', '\375', '\376', '\377'
69};
70
71static const unsigned short EncISO_8859_14_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  0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
89  0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
90  0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
91  0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
92  0x0284, 0x34a2, 0x30e2, 0x00a0, 0x34a2, 0x30e2, 0x34a2, 0x00a0,
93  0x34a2, 0x00a0, 0x34a2, 0x30e2, 0x34a2, 0x01a0, 0x00a0, 0x34a2,
94  0x34a2, 0x30e2, 0x34a2, 0x30e2, 0x34a2, 0x30e2, 0x00a0, 0x34a2,
95  0x30e2, 0x30e2, 0x30e2, 0x34a2, 0x30e2, 0x34a2, 0x30e2, 0x30e2,
96  0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
97  0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
98  0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
99  0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x30e2,
100  0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
101  0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
102  0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
103  0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2
104};
105
106static int
107mbc_case_fold(OnigCaseFoldType flag,
108			  const UChar** pp, const UChar* end ARG_UNUSED,
109			  UChar* lower, OnigEncoding enc ARG_UNUSED)
110{
111  const UChar* p = *pp;
112
113  if (*p == 0xdf && (flag & INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR) != 0) {
114    *lower++ = 's';
115    *lower   = 's';
116    (*pp)++;
117    return 2;
118  }
119
120  *lower = ENC_ISO_8859_14_TO_LOWER_CASE(*p);
121  (*pp)++;
122  return 1; /* return byte length of converted char to lower */
123}
124
125#if 0
126static int
127is_mbc_ambiguous(OnigCaseFoldType flag,
128		 const UChar** pp, const UChar* end)
129{
130  int v;
131  const UChar* p = *pp;
132
133  if (*p == 0xdf && (flag & INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR) != 0) {
134    (*pp)++;
135    return TRUE;
136  }
137
138  (*pp)++;
139  v = (EncISO_8859_14_CtypeTable[*p] & (BIT_CTYPE_UPPER | BIT_CTYPE_LOWER));
140  if ((v | BIT_CTYPE_LOWER) != 0) {
141    return TRUE;
142  }
143
144  return (v != 0 ? TRUE : FALSE);
145}
146#endif
147
148static int
149is_code_ctype(OnigCodePoint code, unsigned int ctype, OnigEncoding enc ARG_UNUSED)
150{
151  if (code < 256)
152    return ENC_IS_ISO_8859_14_CTYPE(code, ctype);
153  else
154    return FALSE;
155}
156
157static const OnigPairCaseFoldCodes CaseFoldMap[] = {
158 { 0xa1, 0xa2 },
159 { 0xa4, 0xa5 },
160 { 0xa6, 0xab },
161 { 0xa8, 0xb8 },
162 { 0xaa, 0xba },
163 { 0xac, 0xbc },
164 { 0xaf, 0xff },
165
166 { 0xb0, 0xb1 },
167 { 0xb2, 0xb3 },
168 { 0xb4, 0xb5 },
169 { 0xb7, 0xb9 },
170 { 0xbb, 0xbf },
171 { 0xbd, 0xbe },
172
173 { 0xc0, 0xe0 },
174 { 0xc1, 0xe1 },
175 { 0xc2, 0xe2 },
176 { 0xc3, 0xe3 },
177 { 0xc4, 0xe4 },
178 { 0xc5, 0xe5 },
179 { 0xc6, 0xe6 },
180 { 0xc7, 0xe7 },
181 { 0xc8, 0xe8 },
182 { 0xc9, 0xe9 },
183 { 0xca, 0xea },
184 { 0xcb, 0xeb },
185 { 0xcc, 0xec },
186 { 0xcd, 0xed },
187 { 0xce, 0xee },
188 { 0xcf, 0xef },
189
190 { 0xd0, 0xf0 },
191 { 0xd1, 0xf1 },
192 { 0xd2, 0xf2 },
193 { 0xd3, 0xf3 },
194 { 0xd4, 0xf4 },
195 { 0xd5, 0xf5 },
196 { 0xd6, 0xf6 },
197 { 0xd7, 0xf7 },
198 { 0xd8, 0xf8 },
199 { 0xd9, 0xf9 },
200 { 0xda, 0xfa },
201 { 0xdb, 0xfb },
202 { 0xdc, 0xfc },
203 { 0xdd, 0xfd },
204 { 0xde, 0xfe }
205};
206
207static int
208apply_all_case_fold(OnigCaseFoldType flag,
209				OnigApplyAllCaseFoldFunc f, void* arg,
210				OnigEncoding enc ARG_UNUSED)
211{
212  return onigenc_apply_all_case_fold_with_map(
213             sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 1,
214             flag, f, arg);
215}
216
217static int
218get_case_fold_codes_by_str(OnigCaseFoldType flag,
219				       const OnigUChar* p, const OnigUChar* end,
220				       OnigCaseFoldCodeItem items[],
221				       OnigEncoding enc ARG_UNUSED)
222{
223  return onigenc_get_case_fold_codes_by_str_with_map(
224	     sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 1,
225	     flag, p, end, items);
226}
227
228OnigEncodingDefine(iso_8859_14, ISO_8859_14) = {
229  onigenc_single_byte_mbc_enc_len,
230  "ISO-8859-14",  /* name */
231  1,             /* max enc length */
232  1,             /* min enc length */
233  onigenc_is_mbc_newline_0x0a,
234  onigenc_single_byte_mbc_to_code,
235  onigenc_single_byte_code_to_mbclen,
236  onigenc_single_byte_code_to_mbc,
237  mbc_case_fold,
238  apply_all_case_fold,
239  get_case_fold_codes_by_str,
240  onigenc_minimum_property_name_to_ctype,
241  is_code_ctype,
242  onigenc_not_support_get_ctype_code_range,
243  onigenc_single_byte_left_adjust_char_head,
244  onigenc_always_true_is_allowed_reverse_match,
245  0,
246  ONIGENC_FLAG_NONE,
247};
248ENC_ALIAS("ISO8859-14", "ISO-8859-14")
249