93 lines
2.6 KiB
C
93 lines
2.6 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/cp950.h>
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#include "cp950.h"
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qse_size_t qse_uctocp950 (qse_wchar_t uc, qse_mchar_t* cp950, qse_size_t size)
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{
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if (uc & ~(qse_wchar_t)0x7F)
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{
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if (uc >= 0xffffu) return 0; /* illegal character */
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if (size >= 2)
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{
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qse_uint16_t mb;
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mb = wctomb (uc);
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if (mb == 0xffffu) return 0; /* illegal character */
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cp950[0] = (mb >> 8);
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cp950[1] = (mb & 0xFF);
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}
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return 2;
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}
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else
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{
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/* uc >= 0 && uc <= 127 */
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if (size >= 1) *cp950 = uc;
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return 1; /* ok or buffer to small */
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}
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}
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qse_size_t qse_cp950touc (
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const qse_mchar_t* cp950, qse_size_t size, qse_wchar_t* uc)
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{
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QSE_ASSERT (cp950 != QSE_NULL);
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QSE_ASSERT (size > 0);
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QSE_ASSERT (QSE_SIZEOF(qse_mchar_t) == 1);
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QSE_ASSERT (QSE_SIZEOF(qse_wchar_t) >= 2);
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if (cp950[0] & 0x80)
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{
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if (size >= 2)
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{
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qse_uint16_t wc;
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wc = mbtowc ((((qse_uint16_t)(qse_uint8_t)cp950[0]) << 8) | (qse_uint8_t)cp950[1]);
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if (wc == 0xffffu) return 0; /* illegal sequence */
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if (uc) *uc = wc;
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}
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return 2; /* ok or incomplete sequence */
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}
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else
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{
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if (uc) *uc = cp950[0];
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return 1;
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}
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}
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qse_size_t qse_cp950len (const qse_mchar_t* cp950, qse_size_t size)
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{
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return qse_cp950touc (cp950, size, QSE_NULL);
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}
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qse_size_t qse_cp950lenmax (void)
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{
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return QSE_CP950LEN_MAX;
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}
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