From 0dbf3761f6b98e5c16c9bfa0306ae5d3257d081f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Tue, 12 Aug 2014 21:06:31 +0200 Subject: Imported Upstream version 5.9.5 --- enc/utf32_be.c | 184 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 184 insertions(+) create mode 100644 enc/utf32_be.c (limited to 'enc/utf32_be.c') diff --git a/enc/utf32_be.c b/enc/utf32_be.c new file mode 100644 index 0000000..b4f8226 --- /dev/null +++ b/enc/utf32_be.c @@ -0,0 +1,184 @@ +/********************************************************************** + utf32_be.c - Oniguruma (regular expression library) +**********************************************************************/ +/*- + * Copyright (c) 2002-2007 K.Kosako + * 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 int +utf32be_mbc_enc_len(const UChar* p ARG_UNUSED) +{ + return 4; +} + +static int +utf32be_is_mbc_newline(const UChar* p, const UChar* end) +{ + if (p + 3 < end) { + if (*(p+3) == 0x0a && *(p+2) == 0 && *(p+1) == 0 && *p == 0) + return 1; +#ifdef USE_UNICODE_ALL_LINE_TERMINATORS + if (( +#ifndef USE_CRNL_AS_LINE_TERMINATOR + *(p+3) == 0x0d || +#endif + *(p+3) == 0x85) + && *(p+2) == 0 && *(p+1) == 0 && *p == 0x00) + return 1; + if (*(p+2) == 0x20 && (*(p+3) == 0x29 || *(p+3) == 0x28) + && *(p+1) == 0 && *p == 0) + return 1; +#endif + } + return 0; +} + +static OnigCodePoint +utf32be_mbc_to_code(const UChar* p, const UChar* end ARG_UNUSED) +{ + return (OnigCodePoint )(((p[0] * 256 + p[1]) * 256 + p[2]) * 256 + p[3]); +} + +static int +utf32be_code_to_mbclen(OnigCodePoint code ARG_UNUSED) +{ + return 4; +} + +static int +utf32be_code_to_mbc(OnigCodePoint code, UChar *buf) +{ + UChar* p = buf; + + *p++ = (UChar )((code & 0xff000000) >>24); + *p++ = (UChar )((code & 0xff0000) >>16); + *p++ = (UChar )((code & 0xff00) >> 8); + *p++ = (UChar ) (code & 0xff); + return 4; +} + +static int +utf32be_mbc_case_fold(OnigCaseFoldType flag, + const UChar** pp, const UChar* end, UChar* fold) +{ + const UChar* p = *pp; + + if (ONIGENC_IS_ASCII_CODE(*(p+3)) && *(p+2) == 0 && *(p+1) == 0 && *p == 0) { + *fold++ = 0; + *fold++ = 0; + +#ifdef USE_UNICODE_CASE_FOLD_TURKISH_AZERI + if ((flag & ONIGENC_CASE_FOLD_TURKISH_AZERI) != 0) { + if (*(p+3) == 0x49) { + *fold++ = 0x01; + *fold = 0x31; + (*pp) += 4; + return 4; + } + } +#endif + + *fold++ = 0; + *fold = ONIGENC_ASCII_CODE_TO_LOWER_CASE(*(p+3)); + *pp += 4; + return 4; + } + else + return onigenc_unicode_mbc_case_fold(ONIG_ENCODING_UTF32_BE, flag, pp, end, + fold); +} + +#if 0 +static int +utf32be_is_mbc_ambiguous(OnigCaseFoldType flag, const UChar** pp, const UChar* end) +{ + const UChar* p = *pp; + + (*pp) += 4; + + if (*(p+2) == 0 && *(p+1) == 0 && *p == 0) { + int c, v; + + p += 3; + 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* +utf32be_left_adjust_char_head(const UChar* start, const UChar* s) +{ + int rem; + + if (s <= start) return (UChar* )s; + + rem = (s - start) % 4; + return (UChar* )(s - rem); +} + +static int +utf32be_get_case_fold_codes_by_str(OnigCaseFoldType flag, + const OnigUChar* p, const OnigUChar* end, OnigCaseFoldCodeItem items[]) +{ + return onigenc_unicode_get_case_fold_codes_by_str(ONIG_ENCODING_UTF32_BE, + flag, p, end, items); +} + +OnigEncodingType OnigEncodingUTF32_BE = { + utf32be_mbc_enc_len, + "UTF-32BE", /* name */ + 4, /* max byte length */ + 4, /* min byte length */ + utf32be_is_mbc_newline, + utf32be_mbc_to_code, + utf32be_code_to_mbclen, + utf32be_code_to_mbc, + utf32be_mbc_case_fold, + onigenc_unicode_apply_all_case_fold, + utf32be_get_case_fold_codes_by_str, + onigenc_unicode_property_name_to_ctype, + onigenc_unicode_is_code_ctype, + onigenc_utf16_32_get_ctype_code_range, + utf32be_left_adjust_char_head, + onigenc_always_false_is_allowed_reverse_match +}; -- cgit v1.2.3