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authornaruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2008-02-17 03:21:20 +0000
committernaruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2008-02-17 03:21:20 +0000
commit8984fa674290c17b62c7cf5cf0dd266d297fc14b (patch)
tree2a4bee0a1c6734183c898f508854551d1ee1d60c /enc/cp949.c
parent0f4199fb56ec12dae32a6fa099f15aaa7e55d10f (diff)
* enc/{euc_jp.c,gbk.c,iso_8859_1.c,iso_8859_11.c,iso_8859_13.c,
iso_8859_2.c,iso_8859_6.c,iso_8859_7.c,iso_8859_8.c,iso_8859_9.c, shift_jis.c,windows_1251.c}: add document about encodings. * enc/cp949.c: divided into new file. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15516 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'enc/cp949.c')
-rw-r--r--enc/cp949.c219
1 files changed, 219 insertions, 0 deletions
diff --git a/enc/cp949.c b/enc/cp949.c
new file mode 100644
index 0000000..0046460
--- /dev/null
+++ b/enc/cp949.c
@@ -0,0 +1,219 @@
+/**********************************************************************
+ cp949.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"
+
+static const int EncLen_CP949[] = {
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1
+};
+
+static const char CP949_CAN_BE_TRAIL_TABLE[256] = {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0
+};
+
+#define CP949_ISMB_FIRST(byte) (EncLen_CP949[byte] > 1)
+#define CP949_ISMB_TRAIL(byte) CP949_CAN_BE_TRAIL_TABLE[(byte)]
+
+typedef enum { FAILURE = -2, ACCEPT = -1, S0 = 0, S1 } state_t;
+#define A ACCEPT
+#define F FAILURE
+static const signed char trans[][0x100] = {
+ { /* S0 0 1 2 3 4 5 6 7 8 9 a b c d e f */
+ /* 0 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
+ /* 1 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
+ /* 2 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
+ /* 3 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
+ /* 4 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
+ /* 5 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
+ /* 6 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
+ /* 7 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
+ /* 8 */ A, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ /* 9 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ /* a */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ /* b */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ /* c */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ /* d */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ /* e */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ /* f */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, F
+ },
+ { /* S1 0 1 2 3 4 5 6 7 8 9 a b c d e f */
+ /* 0 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
+ /* 1 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
+ /* 2 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
+ /* 3 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
+ /* 4 */ F, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
+ /* 5 */ A, A, A, A, A, A, A, A, A, A, A, F, F, F, F, F,
+ /* 6 */ F, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
+ /* 7 */ A, A, A, A, A, A, A, A, A, A, A, F, F, F, F, F,
+ /* 8 */ F, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
+ /* 9 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
+ /* a */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
+ /* b */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
+ /* c */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
+ /* d */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
+ /* e */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
+ /* f */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, F
+ }
+};
+#undef A
+#undef F
+
+static int
+cp949_mbc_enc_len(const UChar* p, const UChar* e, OnigEncoding enc ARG_UNUSED)
+{
+ int firstbyte = *p++;
+ state_t s = trans[0][firstbyte];
+#define RETURN(n) \
+ return s == ACCEPT ? ONIGENC_CONSTRUCT_MBCLEN_CHARFOUND(n) : \
+ ONIGENC_CONSTRUCT_MBCLEN_INVALID()
+ if (s < 0) RETURN(1);
+ if (p == e) return ONIGENC_CONSTRUCT_MBCLEN_NEEDMORE(EncLen_CP949[firstbyte]-1);
+ s = trans[s][*p++];
+ RETURN(2);
+#undef RETURN
+}
+
+static OnigCodePoint
+cp949_mbc_to_code(const UChar* p, const UChar* end, OnigEncoding enc)
+{
+ return onigenc_mbn_mbc_to_code(enc, p, end);
+}
+
+static int
+cp949_code_to_mbc(OnigCodePoint code, UChar *buf, OnigEncoding enc)
+{
+ return onigenc_mb2_code_to_mbc(enc, code, buf);
+}
+
+static int
+cp949_mbc_case_fold(OnigCaseFoldType flag, const UChar** pp, const UChar* end,
+ UChar* lower, OnigEncoding enc)
+{
+ return onigenc_mbn_mbc_case_fold(enc, flag,
+ pp, end, lower);
+}
+
+#if 0
+static int
+cp949_is_mbc_ambiguous(OnigCaseFoldType flag,
+ const UChar** pp, const UChar* end, OnigEncoding enc)
+{
+ return onigenc_mbn_is_mbc_ambiguous(enc, flag, pp, end);
+}
+#endif
+
+static int
+cp949_is_code_ctype(OnigCodePoint code, unsigned int ctype, OnigEncoding enc)
+{
+ return onigenc_mb2_is_code_ctype(enc, code, ctype);
+}
+
+static UChar*
+cp949_left_adjust_char_head(const UChar* start, const UChar* s, OnigEncoding enc)
+{
+ const UChar *p;
+ int len;
+
+ if (s <= start) return (UChar* )s;
+ p = s;
+
+ if (CP949_ISMB_TRAIL(*p)) {
+ while (p > start) {
+ if (! CP949_ISMB_FIRST(*--p)) {
+ p++;
+ break;
+ }
+ }
+ }
+ len = enclen(enc, p, s);
+ if (p + len > s) return (UChar* )p;
+ p += len;
+ return (UChar* )(p + ((s - p) & ~1));
+}
+
+static int
+cp949_is_allowed_reverse_match(const UChar* s, const UChar* end ARG_UNUSED, OnigEncoding enc ARG_UNUSED)
+{
+ const UChar c = *s;
+ return (CP949_ISMB_TRAIL(c) ? FALSE : TRUE);
+}
+
+OnigEncodingDefine(cp949, CP949) = {
+ cp949_mbc_enc_len,
+ "CP949", /* name */
+ 2, /* max enc length */
+ 1, /* min enc length */
+ onigenc_is_mbc_newline_0x0a,
+ cp949_mbc_to_code,
+ onigenc_mb2_code_to_mbclen,
+ cp949_code_to_mbc,
+ cp949_mbc_case_fold,
+ onigenc_ascii_apply_all_case_fold,
+ onigenc_ascii_get_case_fold_codes_by_str,
+ onigenc_minimum_property_name_to_ctype,
+ cp949_is_code_ctype,
+ onigenc_not_support_get_ctype_code_range,
+ cp949_left_adjust_char_head,
+ cp949_is_allowed_reverse_match
+};
+/*
+ * Name: CP949
+ * Link: http://www.microsoft.com/globaldev/reference/dbcs/949.mspx
+ * Link: http://en.wikipedia.org/wiki/EUC-KR#EUC-KR
+ */