159 lines
4.4 KiB
C
159 lines
4.4 KiB
C
/*
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* $Id$
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*/
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/*
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* Harbour Project source code:
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* Harbour common string functions (accessed from standalone utilities and the RTL)
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*
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* Copyright 1999-2001 Viktor Szakats <viktor.szakats@syenar.hu>
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* www - http://www.harbour-project.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
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*
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* As a special exception, the Harbour Project gives permission for
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* additional uses of the text contained in its release of Harbour.
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*
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* The exception is that, if you link the Harbour libraries with other
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* files to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the Harbour library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the Harbour
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* Project under the name Harbour. If you copy code from other
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* Harbour Project or Free Software Foundation releases into a copy of
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* Harbour, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for Harbour, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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*
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*/
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/*
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* The following parts are Copyright of the individual authors.
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* www - http://www.harbour-project.org
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*
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* Copyright 1999 David G. Holm <dholm@jsd-llc.com>
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* hb_stricmp()
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*
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* See doc/license.txt for licensing terms.
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*
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*/
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#include <ctype.h> /* Needed by hb_strupr() */
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#include "hbapi.h"
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ULONG hb_strAt( const char * szSub, ULONG ulSubLen, const char * szText, ULONG ulLen )
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{
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HB_TRACE(HB_TR_DEBUG, ("hb_strAt(%s, %lu, %s, %lu)", szSub, ulSubLen, szText, ulLen));
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if( ulSubLen > 0 && ulLen >= ulSubLen )
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{
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ULONG ulPos = 0;
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ULONG ulSubPos = 0;
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while( ulPos < ulLen && ulSubPos < ulSubLen )
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{
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if( szText[ ulPos ] == szSub[ ulSubPos ] )
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{
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ulSubPos++;
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ulPos++;
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}
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else if( ulSubPos )
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{
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/* Go back to the first character after the first match,
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or else tests like "22345" $ "012223456789" will fail. */
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ulPos -= ( ulSubPos - 1 );
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ulSubPos = 0;
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}
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else
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ulPos++;
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}
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return ( ulSubPos < ulSubLen ) ? 0 : ( ulPos - ulSubLen + 1 );
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}
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else
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return 0;
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}
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char * hb_strupr( char * pszText )
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{
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char * pszPos;
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HB_TRACE(HB_TR_DEBUG, ("hb_strupr(%s)", pszText));
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for( pszPos = pszText; *pszPos; pszPos++ )
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*pszPos = toupper( *pszPos );
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return pszText;
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}
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char * hb_strdup( const char * pszText )
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{
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char * pszDup;
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int iLen = strlen( pszText ) + 1;
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HB_TRACE(HB_TR_DEBUG, ("hb_strdup(%s, %i)", pszText, iLen));
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pszDup = ( char * ) hb_xgrab( iLen );
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memcpy( pszDup, pszText, iLen );
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return pszDup;
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}
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int hb_stricmp( const char * s1, const char * s2 )
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{
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int rc = 0;
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ULONG l1;
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ULONG l2;
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ULONG count;
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HB_TRACE(HB_TR_DEBUG, ("hb_stricmp(%s, %s)", s1, s2));
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l1 = strlen( s1 );
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l2 = strlen( s2 );
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count = ( l1 < l2 ? l1 : l2 );
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while( rc == 0 && count > 0 )
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{
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char c1 = toupper( *s1 );
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char c2 = toupper( *s2 );
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s1++;
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s2++;
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if( c1 != c2 )
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rc = ( c1 < c2 ? -1 : 1 );
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count--;
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}
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if( rc == 0 && l1 != l2 )
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rc = ( l1 < l2 ? -1 : 1 );
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return rc;
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}
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