Annotation of embedaddon/php/ext/mbstring/oniguruma/enc/euc_kr.c, revision 1.1.1.1
1.1 misho 1: /**********************************************************************
2: euc_kr.c - Oniguruma (regular expression library)
3: **********************************************************************/
4: /*-
5: * Copyright (c) 2002-2005 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: static const int EncLen_EUCKR[] = {
33: 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
34: 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
35: 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
36: 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
37: 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
38: 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
39: 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
40: 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
41: 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
42: 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
43: 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
44: 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
45: 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
46: 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
47: 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
48: 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1
49: };
50:
51: static int
52: euckr_mbc_enc_len(const UChar* p)
53: {
54: return EncLen_EUCKR[*p];
55: }
56:
57: static OnigCodePoint
58: euckr_mbc_to_code(const UChar* p, const UChar* end)
59: {
60: return onigenc_mbn_mbc_to_code(ONIG_ENCODING_EUC_KR, p, end);
61: }
62:
63: static int
64: euckr_code_to_mbc(OnigCodePoint code, UChar *buf)
65: {
66: return onigenc_mb2_code_to_mbc(ONIG_ENCODING_EUC_KR, code, buf);
67: }
68:
69: static int
70: euckr_mbc_to_normalize(OnigAmbigType flag, const UChar** pp, const UChar* end,
71: UChar* lower)
72: {
73: return onigenc_mbn_mbc_to_normalize(ONIG_ENCODING_EUC_KR, flag,
74: pp, end, lower);
75: }
76:
77: static int
78: euckr_is_mbc_ambiguous(OnigAmbigType flag, const UChar** pp, const UChar* end)
79: {
80: return onigenc_mbn_is_mbc_ambiguous(ONIG_ENCODING_EUC_KR, flag, pp, end);
81: }
82:
83: static int
84: euckr_is_code_ctype(OnigCodePoint code, unsigned int ctype)
85: {
86: return onigenc_mb2_is_code_ctype(ONIG_ENCODING_EUC_KR, code, ctype);
87: }
88:
89: #define euckr_islead(c) ((c) < 0xa1 || (c) == 0xff)
90:
91: static UChar*
92: euckr_left_adjust_char_head(const UChar* start, const UChar* s)
93: {
94: /* Assumed in this encoding,
95: mb-trail bytes don't mix with single bytes.
96: */
97: const UChar *p;
98: int len;
99:
100: if (s <= start) return (UChar* )s;
101: p = s;
102:
103: while (!euckr_islead(*p) && p > start) p--;
104: len = enc_len(ONIG_ENCODING_EUC_KR, p);
105: if (p + len > s) return (UChar* )p;
106: p += len;
107: return (UChar* )(p + ((s - p) & ~1));
108: }
109:
110: static int
111: euckr_is_allowed_reverse_match(const UChar* s, const UChar* end)
112: {
113: const UChar c = *s;
114: if (c <= 0x7e) return TRUE;
115: else return FALSE;
116: }
117:
118: OnigEncodingType OnigEncodingEUC_KR = {
119: euckr_mbc_enc_len,
120: "EUC-KR", /* name */
121: 2, /* max enc length */
122: 1, /* min enc length */
123: ONIGENC_AMBIGUOUS_MATCH_ASCII_CASE,
124: {
125: (OnigCodePoint )'\\' /* esc */
126: , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* anychar '.' */
127: , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* anytime '*' */
128: , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* zero or one time '?' */
129: , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* one or more time '+' */
130: , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* anychar anytime */
131: },
132: onigenc_is_mbc_newline_0x0a,
133: euckr_mbc_to_code,
134: onigenc_mb2_code_to_mbclen,
135: euckr_code_to_mbc,
136: euckr_mbc_to_normalize,
137: euckr_is_mbc_ambiguous,
138: onigenc_ascii_get_all_pair_ambig_codes,
139: onigenc_nothing_get_all_comp_ambig_codes,
140: euckr_is_code_ctype,
141: onigenc_not_support_get_ctype_code_range,
142: euckr_left_adjust_char_head,
143: euckr_is_allowed_reverse_match
144: };
145:
146: /* Same with OnigEncodingEUC_KR except the name */
147: OnigEncodingType OnigEncodingEUC_CN = {
148: euckr_mbc_enc_len,
149: "EUC-CN", /* name */
150: 2, /* max enc length */
151: 1, /* min enc length */
152: ONIGENC_AMBIGUOUS_MATCH_ASCII_CASE,
153: {
154: (OnigCodePoint )'\\' /* esc */
155: , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* anychar '.' */
156: , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* anytime '*' */
157: , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* zero or one time '?' */
158: , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* one or more time '+' */
159: , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* anychar anytime */
160: },
161: onigenc_is_mbc_newline_0x0a,
162: euckr_mbc_to_code,
163: onigenc_mb2_code_to_mbclen,
164: euckr_code_to_mbc,
165: euckr_mbc_to_normalize,
166: euckr_is_mbc_ambiguous,
167: onigenc_ascii_get_all_pair_ambig_codes,
168: onigenc_nothing_get_all_comp_ambig_codes,
169: euckr_is_code_ctype,
170: onigenc_not_support_get_ctype_code_range,
171: euckr_left_adjust_char_head,
172: euckr_is_allowed_reverse_match
173: };
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