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-rw-r--r--enc/iso_8859_1.c274
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diff --git a/enc/iso_8859_1.c b/enc/iso_8859_1.c
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+++ b/enc/iso_8859_1.c
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+/**********************************************************************
+ iso8859_1.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_IS_ISO_8859_1_CTYPE(code,ctype) \
+ ((EncISO_8859_1_CtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)
+
+static const unsigned short EncISO_8859_1_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, 0x00a0, 0x00a0, 0x00a0,
+ 0x00a0, 0x00a0, 0x30e2, 0x01a0, 0x00a0, 0x01a0, 0x00a0, 0x00a0,
+ 0x00a0, 0x00a0, 0x10a0, 0x10a0, 0x00a0, 0x30e2, 0x00a0, 0x01a0,
+ 0x00a0, 0x10a0, 0x30e2, 0x01a0, 0x10a0, 0x10a0, 0x10a0, 0x01a0,
+ 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, 0x30e2
+};
+
+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)
+{
+ 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)
+{
+ if (0x41 <= *p && *p <= 0x5a) {
+ items[0].byte_len = 1;
+ items[0].code_len = 1;
+ items[0].code[0] = (OnigCodePoint )(*p + 0x20);
+ if (*p == 0x53 && end > p + 1
+ && (*(p+1) == 0x53 || *(p+1) == 0x73)) { /* SS */
+ items[1].byte_len = 2;
+ items[1].code_len = 1;
+ items[1].code[0] = (OnigCodePoint )0xdf;
+ return 2;
+ }
+ else
+ return 1;
+ }
+ else if (0x61 <= *p && *p <= 0x7a) {
+ items[0].byte_len = 1;
+ items[0].code_len = 1;
+ items[0].code[0] = (OnigCodePoint )(*p - 0x20);
+ if (*p == 0x73 && end > p + 1
+ && (*(p+1) == 0x73 || *(p+1) == 0x53)) { /* ss */
+ items[1].byte_len = 2;
+ items[1].code_len = 1;
+ items[1].code[0] = (OnigCodePoint )0xdf;
+ return 2;
+ }
+ else
+ return 1;
+ }
+ else if (0xc0 <= *p && *p <= 0xcf) {
+ items[0].byte_len = 1;
+ items[0].code_len = 1;
+ items[0].code[0] = (OnigCodePoint )(*p + 0x20);
+ return 1;
+ }
+ else if (0xd0 <= *p && *p <= 0xdf) {
+ if (*p == 0xdf) {
+ items[0].byte_len = 1;
+ items[0].code_len = 2;
+ items[0].code[0] = (OnigCodePoint )'s';
+ items[0].code[1] = (OnigCodePoint )'s';
+
+ items[1].byte_len = 1;
+ items[1].code_len = 2;
+ items[1].code[0] = (OnigCodePoint )'S';
+ items[1].code[1] = (OnigCodePoint )'S';
+
+ items[2].byte_len = 1;
+ items[2].code_len = 2;
+ items[2].code[0] = (OnigCodePoint )'s';
+ items[2].code[1] = (OnigCodePoint )'S';
+
+ items[3].byte_len = 1;
+ items[3].code_len = 2;
+ items[3].code[0] = (OnigCodePoint )'S';
+ items[3].code[1] = (OnigCodePoint )'s';
+
+ return 4;
+ }
+ else if (*p != 0xd7) {
+ items[0].byte_len = 1;
+ items[0].code_len = 1;
+ items[0].code[0] = (OnigCodePoint )(*p + 0x20);
+ return 1;
+ }
+ }
+ else if (0xe0 <= *p && *p <= 0xef) {
+ items[0].byte_len = 1;
+ items[0].code_len = 1;
+ items[0].code[0] = (OnigCodePoint )(*p - 0x20);
+ return 1;
+ }
+ else if (0xf0 <= *p && *p <= 0xfe) {
+ if (*p != 0xf7) {
+ items[0].byte_len = 1;
+ items[0].code_len = 1;
+ items[0].code[0] = (OnigCodePoint )(*p - 0x20);
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+static int
+mbc_case_fold(OnigCaseFoldType flag, const UChar** pp, const UChar* end,
+ UChar* lower, OnigEncoding enc)
+{
+ const UChar* p = *pp;
+
+ if (*p == 0xdf && (flag & INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR) != 0) {
+ *lower++ = 's';
+ *lower = 's';
+ (*pp)++;
+ return 2;
+ }
+
+ *lower = ONIGENC_ISO_8859_1_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_1_CtypeTable[*p] & (BIT_CTYPE_UPPER | BIT_CTYPE_LOWER));
+ if ((v | BIT_CTYPE_LOWER) != 0) {
+ /* 0xdf, 0xaa, 0xb5, 0xba are lower case letter, but can't convert. */
+ if (*p >= 0xaa && *p <= 0xba)
+ return FALSE;
+ else
+ return TRUE;
+ }
+
+ return (v != 0 ? TRUE : FALSE);
+}
+#endif
+
+static int
+is_code_ctype(OnigCodePoint code, unsigned int ctype, OnigEncoding enc)
+{
+ if (code < 256)
+ return ENC_IS_ISO_8859_1_CTYPE(code, ctype);
+ else
+ return FALSE;
+}
+
+OnigEncodingType OnigEncodingISO_8859_1 = {
+ onigenc_single_byte_mbc_enc_len,
+ "ISO-8859-1", /* 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
+};
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-23 22:41:45 +0000