Annotation of embedaddon/php/ext/mbstring/oniguruma/enc/iso8859_2.c, revision 1.1.1.1
1.1 misho 1: /**********************************************************************
2: iso8859_2.c - Oniguruma (regular expression library)
3: **********************************************************************/
4: /*-
5: * Copyright (c) 2002-2006 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_2_TO_LOWER_CASE(c) EncISO_8859_2_ToLowerCaseTable[c]
33: #define ENC_IS_ISO_8859_2_CTYPE(code,ctype) \
34: ((EncISO_8859_2_CtypeTable[code] & ctype) != 0)
35:
36: static const UChar EncISO_8859_2_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', '\261', '\242', '\263', '\244', '\265', '\266', '\247',
58: '\250', '\271', '\272', '\273', '\274', '\255', '\276', '\277',
59: '\260', '\261', '\262', '\263', '\264', '\265', '\266', '\267',
60: '\270', '\271', '\272', '\273', '\274', '\275', '\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', '\327',
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:
71: static const unsigned short EncISO_8859_2_CtypeTable[256] = {
72: 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008,
73: 0x2008, 0x220c, 0x2209, 0x2208, 0x2208, 0x2208, 0x2008, 0x2008,
74: 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008,
75: 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008,
76: 0x2284, 0x21a0, 0x21a0, 0x21a0, 0x21a0, 0x21a0, 0x21a0, 0x21a0,
77: 0x21a0, 0x21a0, 0x21a0, 0x21a0, 0x21a0, 0x21a0, 0x21a0, 0x21a0,
78: 0x38b0, 0x38b0, 0x38b0, 0x38b0, 0x38b0, 0x38b0, 0x38b0, 0x38b0,
79: 0x38b0, 0x38b0, 0x21a0, 0x21a0, 0x21a0, 0x21a0, 0x21a0, 0x21a0,
80: 0x21a0, 0x3ca2, 0x3ca2, 0x3ca2, 0x3ca2, 0x3ca2, 0x3ca2, 0x34a2,
81: 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
82: 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
83: 0x34a2, 0x34a2, 0x34a2, 0x21a0, 0x21a0, 0x21a0, 0x21a0, 0x31a0,
84: 0x21a0, 0x38e2, 0x38e2, 0x38e2, 0x38e2, 0x38e2, 0x38e2, 0x30e2,
85: 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
86: 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
87: 0x30e2, 0x30e2, 0x30e2, 0x21a0, 0x21a0, 0x21a0, 0x21a0, 0x2008,
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, 0x14a2, 0x00a0, 0x14a2, 0x00a0, 0x14a2, 0x14a2, 0x00a0,
93: 0x00a0, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x01a0, 0x14a2, 0x14a2,
94: 0x00a0, 0x10e2, 0x00a0, 0x10e2, 0x00a0, 0x10e2, 0x10e2, 0x00a0,
95: 0x00a0, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x00a0, 0x10e2, 0x10e2,
96: 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2,
97: 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2,
98: 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x00a0,
99: 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x10e2,
100: 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2,
101: 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2,
102: 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x00a0,
103: 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x00a0
104: };
105:
106: static int
107: iso_8859_2_mbc_to_normalize(OnigAmbigType flag,
108: const UChar** pp, const UChar* end, UChar* lower)
109: {
110: const UChar* p = *pp;
111:
112: if (((flag & ONIGENC_AMBIGUOUS_MATCH_ASCII_CASE) != 0 &&
113: ONIGENC_IS_MBC_ASCII(p)) ||
114: ((flag & ONIGENC_AMBIGUOUS_MATCH_NONASCII_CASE) != 0 &&
115: !ONIGENC_IS_MBC_ASCII(p))) {
116: *lower = ENC_ISO_8859_2_TO_LOWER_CASE(*p);
117: }
118: else {
119: *lower = *p;
120: }
121: (*pp)++;
122: return 1; /* return byte length of converted char to lower */
123: }
124:
125: static int
126: iso_8859_2_is_mbc_ambiguous(OnigAmbigType flag,
127: const UChar** pp, const UChar* end)
128: {
129: const UChar* p = *pp;
130:
131: (*pp)++;
132: if (((flag & ONIGENC_AMBIGUOUS_MATCH_ASCII_CASE) != 0 &&
133: ONIGENC_IS_MBC_ASCII(p)) ||
134: ((flag & ONIGENC_AMBIGUOUS_MATCH_NONASCII_CASE) != 0 &&
135: !ONIGENC_IS_MBC_ASCII(p))) {
136: int v = (EncISO_8859_2_CtypeTable[*p] &
137: (ONIGENC_CTYPE_UPPER | ONIGENC_CTYPE_LOWER));
138:
139: if ((v | ONIGENC_CTYPE_LOWER) != 0) {
140: /* 0xdf is lower case letter, but can't convert. */
141: if (*p == 0xdf)
142: return FALSE;
143: else
144: return TRUE;
145: }
146:
147: return (v != 0 ? TRUE : FALSE);
148: }
149: return FALSE;
150: }
151:
152: static int
153: iso_8859_2_get_all_pair_ambig_codes(OnigAmbigType flag,
154: const OnigPairAmbigCodes** ccs)
155: {
156: static const OnigPairAmbigCodes cc[] = {
157: { 0xa1, 0xb1 },
158: { 0xa3, 0xb3 },
159: { 0xa5, 0xb5 },
160: { 0xa6, 0xb6 },
161: { 0xa9, 0xb9 },
162: { 0xaa, 0xba },
163: { 0xab, 0xbb },
164: { 0xac, 0xbc },
165: { 0xae, 0xbe },
166: { 0xaf, 0xbf },
167:
168: { 0xb1, 0xa1 },
169: { 0xb3, 0xa3 },
170: { 0xb5, 0xa5 },
171: { 0xb6, 0xa6 },
172: { 0xb9, 0xa9 },
173: { 0xba, 0xaa },
174: { 0xbb, 0xab },
175: { 0xbc, 0xac },
176: { 0xbe, 0xae },
177: { 0xbf, 0xaf },
178:
179: { 0xc0, 0xe0 },
180: { 0xc1, 0xe1 },
181: { 0xc2, 0xe2 },
182: { 0xc3, 0xe3 },
183: { 0xc4, 0xe4 },
184: { 0xc5, 0xe5 },
185: { 0xc6, 0xe6 },
186: { 0xc7, 0xe7 },
187: { 0xc8, 0xe8 },
188: { 0xc9, 0xe9 },
189: { 0xca, 0xea },
190: { 0xcb, 0xeb },
191: { 0xcc, 0xec },
192: { 0xcd, 0xed },
193: { 0xce, 0xee },
194: { 0xcf, 0xef },
195:
196: { 0xd0, 0xf0 },
197: { 0xd1, 0xf1 },
198: { 0xd2, 0xf2 },
199: { 0xd3, 0xf3 },
200: { 0xd4, 0xf4 },
201: { 0xd5, 0xf5 },
202: { 0xd6, 0xf6 },
203: { 0xd8, 0xf8 },
204: { 0xd9, 0xf9 },
205: { 0xda, 0xfa },
206: { 0xdb, 0xfb },
207: { 0xdc, 0xfc },
208: { 0xdd, 0xfd },
209: { 0xde, 0xfe },
210:
211: { 0xe0, 0xc0 },
212: { 0xe1, 0xc1 },
213: { 0xe2, 0xc2 },
214: { 0xe3, 0xc3 },
215: { 0xe4, 0xc4 },
216: { 0xe5, 0xc5 },
217: { 0xe6, 0xc6 },
218: { 0xe7, 0xc7 },
219: { 0xe8, 0xc8 },
220: { 0xe9, 0xc9 },
221: { 0xea, 0xca },
222: { 0xeb, 0xcb },
223: { 0xec, 0xcc },
224: { 0xed, 0xcd },
225: { 0xee, 0xce },
226: { 0xef, 0xcf },
227:
228: { 0xf0, 0xd0 },
229: { 0xf1, 0xd1 },
230: { 0xf2, 0xd2 },
231: { 0xf3, 0xd3 },
232: { 0xf4, 0xd4 },
233: { 0xf5, 0xd5 },
234: { 0xf6, 0xd6 },
235: { 0xf8, 0xd8 },
236: { 0xf9, 0xd9 },
237: { 0xfa, 0xda },
238: { 0xfb, 0xdb },
239: { 0xfc, 0xdc },
240: { 0xfd, 0xdd },
241: { 0xfe, 0xde }
242: };
243:
244: if (flag == ONIGENC_AMBIGUOUS_MATCH_ASCII_CASE) {
245: *ccs = OnigAsciiPairAmbigCodes;
246: return 52;
247: }
248: if (flag == ONIGENC_AMBIGUOUS_MATCH_NONASCII_CASE) {
249: *ccs = cc;
250: return sizeof(cc) / sizeof(OnigPairAmbigCodes);
251: }
252: else
253: return 0;
254: }
255:
256: static int
257: iso_8859_2_is_code_ctype(OnigCodePoint code, unsigned int ctype)
258: {
259: if (code < 256)
260: return ENC_IS_ISO_8859_2_CTYPE(code, ctype);
261: else
262: return FALSE;
263: }
264:
265: OnigEncodingType OnigEncodingISO_8859_2 = {
266: onigenc_single_byte_mbc_enc_len,
267: "ISO-8859-2", /* name */
268: 1, /* max enc length */
269: 1, /* min enc length */
270: (ONIGENC_AMBIGUOUS_MATCH_ASCII_CASE |
271: ONIGENC_AMBIGUOUS_MATCH_NONASCII_CASE ),
272: {
273: (OnigCodePoint )'\\' /* esc */
274: , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* anychar '.' */
275: , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* anytime '*' */
276: , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* zero or one time '?' */
277: , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* one or more time '+' */
278: , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* anychar anytime */
279: },
280: onigenc_is_mbc_newline_0x0a,
281: onigenc_single_byte_mbc_to_code,
282: onigenc_single_byte_code_to_mbclen,
283: onigenc_single_byte_code_to_mbc,
284: iso_8859_2_mbc_to_normalize,
285: iso_8859_2_is_mbc_ambiguous,
286: iso_8859_2_get_all_pair_ambig_codes,
287: onigenc_ess_tsett_get_all_comp_ambig_codes,
288: iso_8859_2_is_code_ctype,
289: onigenc_not_support_get_ctype_code_range,
290: onigenc_single_byte_left_adjust_char_head,
291: onigenc_always_true_is_allowed_reverse_match
292: };
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