hxunicod.cpp
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- /* ***** BEGIN LICENSE BLOCK *****
- * Source last modified: $Id: hxunicod.cpp,v 1.4.32.1 2004/07/09 02:07:59 hubbe Exp $
- *
- * Portions Copyright (c) 1995-2004 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 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the current version of the RealNetworks Community
- * Source License (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.
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL") in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your version of
- * this file only under the terms of the GPL, and not to allow others
- * to use your version of this file under the terms of either the RPSL
- * or RCSL, indicate your decision by deleting the provisions above
- * and replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient may
- * use your version of this file under the terms of any one of the
- * RPSL, the RCSL or the GPL.
- *
- * 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 ***** */
- #include "hxtypes.h"
- #include "hlxclib/string.h"
- #include "hxassert.h"
- #include "hxunicod.h"
- #include "hxresult.h"
- #include "hxheap.h"
- #ifdef _DEBUG
- #undef HX_THIS_FILE
- static const char HX_THIS_FILE[] = __FILE__;
- #endif
- //
- // Currently this function does a really simple conversion.
- // This is a cheater version, and it needs to be investigated.
- //
- HX_RESULT CHXUnicode::ProcessFromUnicode(const char* stringin, UINT16 length, char* stringout, UINT16 outlength)
- {
- HX_ASSERT(stringin);
- HX_ASSERT(stringout);
- ULONG32 newlength=0;
- char* newstring=new char[length];
- HX_RESULT result=HXR_OK;
- HX_ASSERT(newstring);
- if (!newstring)
- {
- return NULL;
- }
- const char* bytesin=NULL;
- char* bytesout=NULL;
- bytesin=stringin;
- bytesout=newstring;
- while (1)
- {
- if (bytesin[0]==0 && bytesin[1]==0)
- {
- break;
- }
- if (bytesin[1]==0)
- {
- newlength++;
- bytesout[0]=bytesin[0];
- bytesout++;
- bytesin+=2;
- }
- else
- {
- newlength+=2;
- bytesout[0]=bytesin[0];
- bytesout[1]=bytesin[1];
- bytesout+=2;
- bytesin+=2;
- }
- }
- HX_ASSERT(outlength >= newlength+1);
- if (outlength < newlength+1)
- {
- result=HXR_BUFFERTOOSMALL;
- goto CleanUp;
- }
- ::memset(stringout,NULL,(int)newlength+1);
- ::memcpy(stringout,newstring,(int)newlength); /* Flawfinder: ignore */
- CleanUp:
- if (newstring != NULL)
- {
- delete [] newstring;
- newstring=NULL;
- }
- return result;
- }
- //
- // Determine the length of the string.
- // This works for WIDE STRINGS ONLY!
- // This function does not returns the number of the characters only.
- // It does not return the length including the two trailing bytes.
- //
- ULONG32 CHXUnicode::StringLength(const char* stringin)
- {
- HX_ASSERT(stringin);
- ULONG32 length=0;
- const char* p=stringin;
- while (TRUE)
- {
- if (p[0]==0 && p[1]==0)
- {
- break;
- }
- length+=1;
- p+=2;
- }
- return length;
- }
- //
- // Determine the size of string.
- // This works for WIDE STRINGS ONLY!
- // This function returns the memory footprint of the string. Which is the
- // length of the string + 2 bytes.
- //
- ULONG32 CHXUnicode::StringMemLength(const char* stringin)
- {
- HX_ASSERT(stringin);
- ULONG32 length=0;
- const char* p=stringin;
- while (TRUE)
- {
- if (p[0]==0 && p[1]==0)
- {
- length+=2;
- p+=2;
- break;
- }
- length+=2;
- p+=2;
- }
- return length;
- }