dbcsutil.h
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上传日期:2007-06-06
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- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #ifndef _DBCSUTIL_H_
- #define _DBCSUTIL_H_
- #include "dbcs.h"
- // Function: dbcsStrCopy
- //
- // Copies string from src to dest, up to maxlen chars,
- // and NULL terminates dest. dest must be at least maxlen chars.
- //
- inline size_t dbcsStrCopy(char* dest, const char* src, size_t maxlen);
- // Function: strSize
- //
- // Returns the length of str (in bytes), not including NULL terminator.
- // If return value is equal to maxlen, there was no null terminator
- // str buffer must be at least maxlen chars.
- //
- inline size_t dbcsStrSize(char* str, size_t maxlen);
- // Function: dbcsFindChar
- //
- // Searches up to maxlen characters of str for c.
- // returns pointer to first occurrence, or NULL if
- // not found.
- //
- inline char* dbcsFindChar(const char* str, char c, size_t maxlen);
- inline size_t dbcsStrCopy(char* dest, const char* src, size_t maxlen)
- {
- size_t nByte;
- if(!HXIsDBCSEnabled())
- {
- for (nByte = 0; nByte < maxlen && src[nByte] != ' '; nByte++)
- {
- dest[nByte] = src[nByte];
- }
- }
- else
- {
- for (nByte = 0; nByte < maxlen && src[nByte] != ' '; nByte++)
- {
- dest[nByte] = src[nByte];
- if(HXIsLeadByte(dest[nByte]))
- {
- // If this is a Lead Byte, get the rest
- if(nByte+1 < maxlen && src[nByte+1] != ' ')
- {
- nByte++;
- dest[nByte] = src[nByte];
- }
- // If this is a Lead Byte and the last byte, leave it off
- else
- {
- dest[nByte] = ' ';
- return nByte;
- }
- }
- }
- }
- dest[nByte] = ' ';
- return nByte;
- }
- inline size_t dbcsStrSize(const char* str, size_t maxlen)
- {
- size_t nSize;
- for(nSize=0; nSize<maxlen && str[nSize] != ' '; nSize++) ;
- return nSize;
- }
- inline char* dbcsFindChar(const char* str, char c, size_t maxlen)
- {
- size_t nByte;
- if(!HXIsDBCSEnabled())
- {
- for(nByte = 0; nByte < maxlen && str[nByte] != ' '; nByte++)
- {
- if(str[nByte] == c)
- {
- return (char*)(&str[nByte]);
- }
- }
- }
- else
- {
- for(nByte = 0; nByte < maxlen && str[nByte] != ' '; nByte++)
- {
- // If lead byte, skip the next one
- if(HXIsLeadByte(str[nByte]))
- {
- nByte++;
- }
- else if(str[nByte] == c)
- {
- return (char*)(&str[nByte]);
- }
- }
- }
- return NULL;
- }
- #endif //_DBCSUTIL_H_