104 lines
3.0 KiB
C
104 lines
3.0 KiB
C
/*
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* $Id$
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*
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Copyright (c) 2006-2019 Chung, Hyung-Hwan. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <qse/cmn/str.h>
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qse_mchar_t* qse_mbsend (const qse_mchar_t* str, const qse_mchar_t* sub)
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{
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return qse_mbsxnend (str, qse_mbslen(str), sub, qse_mbslen(sub));
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}
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qse_mchar_t* qse_mbsxend (
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const qse_mchar_t* str, qse_size_t len, const qse_mchar_t* sub)
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{
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return qse_mbsxnend (str, len, sub, qse_mbslen(sub));
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}
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qse_mchar_t* qse_mbsnend (
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const qse_mchar_t* str, const qse_mchar_t* sub, qse_size_t len)
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{
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return qse_mbsxnend (str, qse_mbslen(str), sub, len);
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}
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qse_mchar_t* qse_mbsxnend (
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const qse_mchar_t* str, qse_size_t len1,
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const qse_mchar_t* sub, qse_size_t len2)
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{
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const qse_mchar_t* end1, * end2;
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if (len2 > len1) return QSE_NULL;
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end1 = str + len1;
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end2 = sub + len2;
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while (end2 > sub)
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{
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if (end1 <= str) return QSE_NULL;
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if (*(--end1) != *(--end2)) return QSE_NULL;
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}
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/* returns the pointer to the match start */
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return (qse_mchar_t*)end1;
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}
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qse_wchar_t* qse_wcsend (const qse_wchar_t* str, const qse_wchar_t* sub)
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{
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return qse_wcsxnend (str, qse_wcslen(str), sub, qse_wcslen(sub));
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}
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qse_wchar_t* qse_wcsxend (
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const qse_wchar_t* str, qse_size_t len, const qse_wchar_t* sub)
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{
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return qse_wcsxnend (str, len, sub, qse_wcslen(sub));
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}
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qse_wchar_t* qse_wcsnend (
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const qse_wchar_t* str, const qse_wchar_t* sub, qse_size_t len)
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{
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return qse_wcsxnend (str, qse_wcslen(str), sub, len);
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}
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qse_wchar_t* qse_wcsxnend (
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const qse_wchar_t* str, qse_size_t len1,
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const qse_wchar_t* sub, qse_size_t len2)
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{
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const qse_wchar_t* end1, * end2;
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if (len2 > len1) return QSE_NULL;
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end1 = str + len1;
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end2 = sub + len2;
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while (end2 > sub)
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{
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if (end1 <= str) return QSE_NULL;
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if (*(--end1) != *(--end2)) return QSE_NULL;
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}
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/* returns the pointer to the match start */
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return (qse_wchar_t*)end1;
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}
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