diff options
Diffstat (limited to 'trunk/enc/utf_16le.c')
-rw-r--r-- | trunk/enc/utf_16le.c | 249 |
1 files changed, 0 insertions, 249 deletions
diff --git a/trunk/enc/utf_16le.c b/trunk/enc/utf_16le.c deleted file mode 100644 index c3712f4e18..0000000000 --- a/trunk/enc/utf_16le.c +++ /dev/null @@ -1,249 +0,0 @@ -/********************************************************************** - utf_16le.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 UTF16_IS_SURROGATE_FIRST(c) (((c) & 0xfc) == 0xd8) -#define UTF16_IS_SURROGATE_SECOND(c) (((c) & 0xfc) == 0xdc) -#define UTF16_IS_SURROGATE(c) (((c) & 0xf8) == 0xd8) - -static const int EncLen_UTF16[] = { - 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, 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, 4, 4, 4, 4, 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 -}; - -static int -utf16le_mbc_enc_len(const UChar* p, const OnigUChar* e, - OnigEncoding enc ARG_UNUSED) -{ - int len = e-p, byte; - if (len < 2) - return ONIGENC_CONSTRUCT_MBCLEN_NEEDMORE(1); - byte = p[1]; - if (!UTF16_IS_SURROGATE(byte)) { - return ONIGENC_CONSTRUCT_MBCLEN_CHARFOUND(2); - } - if (UTF16_IS_SURROGATE_FIRST(byte)) { - if (len < 4) - return ONIGENC_CONSTRUCT_MBCLEN_NEEDMORE(4-len); - if (UTF16_IS_SURROGATE_SECOND(p[3])) - return ONIGENC_CONSTRUCT_MBCLEN_CHARFOUND(4); - } - return ONIGENC_CONSTRUCT_MBCLEN_INVALID(); -} - -static int -utf16le_is_mbc_newline(const UChar* p, const UChar* end, - OnigEncoding enc ARG_UNUSED) -{ - if (p + 1 < end) { - if (*p == 0x0a && *(p+1) == 0x00) - return 1; -#ifdef USE_UNICODE_ALL_LINE_TERMINATORS - if (( -#ifndef USE_CRNL_AS_LINE_TERMINATOR - *p == 0x0d || -#endif - *p == 0x85) && *(p+1) == 0x00) - return 1; - if (*(p+1) == 0x20 && (*p == 0x29 || *p == 0x28)) - return 1; -#endif - } - return 0; -} - -static OnigCodePoint -utf16le_mbc_to_code(const UChar* p, const UChar* end ARG_UNUSED, - OnigEncoding enc ARG_UNUSED) -{ - OnigCodePoint code; - UChar c0 = *p; - UChar c1 = *(p+1); - - if (UTF16_IS_SURROGATE_FIRST(c1)) { - code = ((((c1 - 0xd8) << 2) + ((c0 & 0xc0) >> 6) + 1) << 16) - + ((((c0 & 0x3f) << 2) + (p[3] - 0xdc)) << 8) - + p[2]; - } - else { - code = c1 * 256 + p[0]; - } - return code; -} - -static int -utf16le_code_to_mbclen(OnigCodePoint code, - OnigEncoding enc ARG_UNUSED) -{ - return (code > 0xffff ? 4 : 2); -} - -static int -utf16le_code_to_mbc(OnigCodePoint code, UChar *buf, - OnigEncoding enc ARG_UNUSED) -{ - UChar* p = buf; - - if (code > 0xffff) { - unsigned int high = (code >> 10) + 0xD7C0; - unsigned int low = (code & 0x3FF) + 0xDC00; - *p++ = high & 0xFF; - *p++ = (high >> 8) & 0xFF; - *p++ = low & 0xFF; - *p++ = (low >> 8) & 0xFF; - return 4; - } - else { - *p++ = (UChar )(code & 0xff); - *p++ = (UChar )((code & 0xff00) >> 8); - return 2; - } -} - -static int -utf16le_mbc_case_fold(OnigCaseFoldType flag, - const UChar** pp, const UChar* end, UChar* fold, - OnigEncoding enc) -{ - const UChar* p = *pp; - - if (ONIGENC_IS_ASCII_CODE(*p) && *(p+1) == 0) { -#ifdef USE_UNICODE_CASE_FOLD_TURKISH_AZERI - if ((flag & ONIGENC_CASE_FOLD_TURKISH_AZERI) != 0) { - if (*p == 0x49) { - *fold++ = 0x31; - *fold = 0x01; - (*pp) += 2; - return 2; - } - } -#endif - - *fold++ = ONIGENC_ASCII_CODE_TO_LOWER_CASE(*p); - *fold = 0; - *pp += 2; - return 2; - } - else - return onigenc_unicode_mbc_case_fold(enc, flag, pp, - end, fold); -} - -#if 0 -static int -utf16le_is_mbc_ambiguous(OnigCaseFoldType flag, const UChar** pp, - const UChar* end) -{ - const UChar* p = *pp; - - (*pp) += EncLen_UTF16[*(p+1)]; - - if (*(p+1) == 0) { - int c, v; - - if (*p == 0xdf && (flag & INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR) != 0) { - return TRUE; - } - - c = *p; - v = ONIGENC_IS_UNICODE_ISO_8859_1_BIT_CTYPE(c, - (BIT_CTYPE_UPPER | BIT_CTYPE_LOWER)); - if ((v | BIT_CTYPE_LOWER) != 0) { - /* 0xaa, 0xb5, 0xba are lower case letter, but can't convert. */ - if (c >= 0xaa && c <= 0xba) - return FALSE; - else - return TRUE; - } - return (v != 0 ? TRUE : FALSE); - } - - return FALSE; -} -#endif - -static UChar* -utf16le_left_adjust_char_head(const UChar* start, const UChar* s, - OnigEncoding enc ARG_UNUSED) -{ - if (s <= start) return (UChar* )s; - - if ((s - start) % 2 == 1) { - s--; - } - - if (UTF16_IS_SURROGATE_SECOND(*(s+1)) && s > start + 1) - s -= 2; - - return (UChar* )s; -} - -static int -utf16le_get_case_fold_codes_by_str(OnigCaseFoldType flag, - const OnigUChar* p, const OnigUChar* end, - OnigCaseFoldCodeItem items[], - OnigEncoding enc) -{ - return onigenc_unicode_get_case_fold_codes_by_str(enc, - flag, p, end, items); -} - -OnigEncodingDefine(utf_16le, UTF_16LE) = { - utf16le_mbc_enc_len, - "UTF-16LE", /* name */ - 4, /* max byte length */ - 2, /* min byte length */ - utf16le_is_mbc_newline, - utf16le_mbc_to_code, - utf16le_code_to_mbclen, - utf16le_code_to_mbc, - utf16le_mbc_case_fold, - onigenc_unicode_apply_all_case_fold, - utf16le_get_case_fold_codes_by_str, - onigenc_unicode_property_name_to_ctype, - onigenc_unicode_is_code_ctype, - onigenc_utf16_32_get_ctype_code_range, - utf16le_left_adjust_char_head, - onigenc_always_false_is_allowed_reverse_match -}; |