691b3a9890
* changes to synhronize RDD code with xHarbour (state of 23.09.2005)
Many, many thanks to Przemek Czerpak for his work.
698 lines
17 KiB
C
698 lines
17 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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#include "hbmath.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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/*
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* This function copies szText to destination buffer.
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* NOTE: Unlike the documentation for strncpy, this routine will always append
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* a null
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*/
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HB_EXPORT char * hb_strncpy( char * pDest, const char * pSource, ULONG ulLen )
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{
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char *pBuf = pDest;
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HB_TRACE(HB_TR_DEBUG, ("hb_strncpy(%p, %s, %lu)", pDest, pSource, ulLen));
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pDest[ ulLen ] ='\0';
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while( ulLen && ( *pDest++ = *pSource++ ) != '\0' )
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{
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ulLen--;
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}
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while (ulLen--)
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{
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*pDest++ = '\0';
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}
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return pBuf;
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}
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/*
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* This function copies szText to destination buffer.
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* NOTE: Unlike the documentation for strncat, this routine will always append
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* a null and the ulLen param is pDest size not pSource limit
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*/
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HB_EXPORT char * hb_strncat( char * pDest, const char * pSource, ULONG ulLen )
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{
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char *pBuf = pDest;
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HB_TRACE(HB_TR_DEBUG, ("hb_strncpy(%p, %s, %lu)", pDest, pSource, ulLen));
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pDest[ ulLen ] ='\0';
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while( ulLen && *pDest )
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{
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pDest++;
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ulLen--;
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}
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while( ulLen && ( *pDest++ = *pSource++ ) != '\0' )
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{
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ulLen--;
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}
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/* if someone will need this then please uncomment the cleaning the rest of buffer. */
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/*
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while (ulLen--)
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{
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*pDest++ = '\0';
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}
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*/
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return pBuf;
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}
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char HB_EXPORT * hb_strndup( const char * pszText, ULONG ulLen )
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{
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char * pszDup;
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ULONG ul;
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HB_TRACE(HB_TR_DEBUG, ("hb_strndup(%s, %ld)", pszText, ulLen));
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ul = 0;
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pszDup = ( char * ) pszText;
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while( ulLen-- && *pszDup++ )
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{
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++ul;
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}
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pszDup = ( char * ) hb_xgrab( ul + 1 );
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memcpy( pszDup, pszText, ul );
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pszDup[ ul ] = '\0';
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return pszDup;
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}
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/* This function copies and converts szText to upper case.
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* NOTE: Unlike the documentation for strncpy, this routine will always append
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* a null
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*/
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HB_EXPORT char * hb_strncpyUpper( char * pDest, const char * pSource, ULONG ulLen )
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{
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char *pBuf = pDest;
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HB_TRACE(HB_TR_DEBUG, ("hb_strncpyUpper(%p, %s, %lu)", pDest, pSource, ulLen));
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pDest[ ulLen ] ='\0';
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/* some compilers impliment toupper as a macro, and this has side effects! */
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/* *pDest++ = toupper( *pSource++ ); */
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while( ulLen && (*pDest++ = toupper( *pSource )) != '\0' )
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{
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ulLen--;
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pSource++;
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}
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while (ulLen--)
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{
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*pDest++ = '\0';
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}
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return pBuf;
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}
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/* This function copies and converts szText to upper case AND Trims it
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* NOTE: Unlike the documentation for strncpy, this routine will always append
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* a null
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*/
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HB_EXPORT char * hb_strncpyUpperTrim( char * pDest, const char * pSource, ULONG ulLen )
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{
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char *pBuf = pDest;
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ULONG ulSLen = strlen( pSource );
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HB_TRACE(HB_TR_DEBUG, ("hb_strncpyUpperTrim(%p, %s, %lu)", pDest, pSource, ulLen));
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pDest[ ulLen ] ='\0';
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while( ulSLen && pSource[ ulSLen - 1 ] == ' ')
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{
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ulSLen--;
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}
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/* some compilers impliment toupper as a macro, and this has side effects! */
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/* *pDest++ = toupper( *pSource++ ); */
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while( ulLen && ulSLen && (*pDest++ = toupper( *pSource )) != '\0' )
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{
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ulSLen--;
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ulLen--;
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pSource++;
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}
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while (ulLen--)
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{
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*pDest++ = '\0';
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}
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return pBuf;
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}
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/*
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* This function copies trimed szText to destination buffer.
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* NOTE: Unlike the documentation for strncpy, this routine will always append
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* a null
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*/
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HB_EXPORT char * hb_strncpyTrim( char * pDest, const char * pSource, ULONG ulLen )
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{
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char *pBuf = pDest;
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LONG lSLen = strlen( pSource );
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HB_TRACE(HB_TR_DEBUG, ("hb_strncpyTrim(%p, %s, %lu)", pDest, pSource, ulLen));
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pDest[ ulLen ] ='\0';
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while( lSLen && pSource[ lSLen - 1 ] == ' ')
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{
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lSLen--;
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}
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/* some compilers impliment toupper as a macro, and this has side effects! */
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/* *pDest++ = toupper( *pSource++ ); */
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while( ulLen && lSLen && ( *pDest++ = *pSource++ ) != '\0' )
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{
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lSLen--;
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ulLen--;
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}
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while (ulLen--)
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{
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*pDest++ = '\0';
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}
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return pBuf;
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}
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static double hb_numPow10( int nPrecision )
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{
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static double s_dPow10[16] = { 1.0, /* 0 */
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10.0, /* 1 */
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100.0, /* 2 */
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1000.0, /* 3 */
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10000.0, /* 4 */
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100000.0, /* 5 */
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1000000.0, /* 6 */
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10000000.0, /* 7 */
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100000000.0, /* 8 */
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1000000000.0, /* 9 */
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10000000000.0, /* 10 */
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100000000000.0, /* 11 */
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1000000000000.0, /* 12 */
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10000000000000.0, /* 13 */
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100000000000000.0, /* 14 */
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1000000000000000.0 }; /* 15 */
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if ( nPrecision < 16 )
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{
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if ( nPrecision >= 0 )
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{
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return s_dPow10[ nPrecision ];
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}
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else if ( nPrecision > -16 )
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{
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return 1.0 / s_dPow10[ -nPrecision ];
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}
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}
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return pow(10.0, (double) nPrecision);
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}
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double hb_numRound( double dNum, int iDec )
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{
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static const double doBase = 10.0f;
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double doComplete5, doComplete5i, dPow;
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HB_TRACE(HB_TR_DEBUG, ("hb_numRound(%lf, %d)", dNum, iDec));
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if( dNum == 0.0 )
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return 0.0;
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if ( iDec < 0 )
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{
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dPow = hb_numPow10( -iDec );
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doComplete5 = dNum / dPow * doBase;
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}
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else
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{
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dPow = hb_numPow10( iDec );
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doComplete5 = dNum * dPow * doBase;
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}
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if( dNum < 0.0f )
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doComplete5 -= 5.0f;
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else
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doComplete5 += 5.0f;
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doComplete5 /= doBase;
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#if defined( HB_DBLFL_PREC_FACTOR ) && !defined( HB_C52_STRICT )
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/* similar operation is done by Cl5.3
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it's a hack to force rounding FL values UP */
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doComplete5 *= HB_DBLFL_PREC_FACTOR;
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#endif
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modf( doComplete5, &doComplete5i );
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if ( iDec < 0 )
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return doComplete5i * dPow;
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else
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return doComplete5i / dPow;
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}
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double hb_numInt( double dNum )
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{
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double dInt;
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#if defined( HB_DBLFL_PREC_FACTOR ) && !defined( HB_C52_STRICT )
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/* Similar hack as in round to make this functions compatible */
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dNum *= HB_DBLFL_PREC_FACTOR;
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#endif
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modf( dNum, &dInt );
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return dInt;
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}
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static BOOL hb_str2number( BOOL fPCode, const char* szNum, ULONG ulLen, HB_LONG * lVal, double * dVal, int * piDec, int * piWidth )
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{
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BOOL fDbl = FALSE, fDec = FALSE, fNeg, fHex = FALSE;
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ULONG ulPos = 0;
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int c, iWidth, iDec = 0, iDecR = 0;
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HB_TRACE(HB_TR_DEBUG, ("hb_str2number(%d, %p, %ul %p, %p, %p, %p)", (int) fPCode, szNum, ulLen, lVal, dVal, piDec, piWidth ));
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while ( ulPos < ulLen && isspace( ( BYTE ) szNum[ulPos] ) )
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ulPos++;
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if ( ulPos >= ulLen )
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{
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fNeg = FALSE;
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}
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else if ( szNum[ulPos] == '-' )
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{
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fNeg = TRUE;
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ulPos++;
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}
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else
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{
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fNeg = FALSE;
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if ( szNum[ulPos] == '+' )
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ulPos++;
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}
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*lVal = 0;
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/* Hex Number */
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if( fPCode && ulPos + 1 < ulLen && szNum[ulPos] == '0' &&
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( szNum[ulPos+1] == 'X' || szNum[ulPos+1] == 'x' ) )
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{
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ulPos += 2;
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iWidth = HB_DEFAULT_WIDTH;
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fHex = TRUE;
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for ( ; ulPos < ulLen; ulPos++ )
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{
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c = szNum[ulPos];
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if ( c >= '0' && c <= '9' )
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c -= '0';
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else if ( c >= 'A' && c <= 'F' )
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c -= 'A' - 10;
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else if ( c >= 'a' && c <= 'f' )
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c -= 'a' - 10;
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else
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break;
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*lVal = ( *lVal << 4 ) + c;
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}
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}
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else
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{
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HB_LONG lLimV;
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int iLimC;
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lLimV = HB_LONG_MAX / 10;
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iLimC = HB_LONG_MAX % 10;
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iWidth = ulPos;
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for ( ; ulPos < ulLen; ulPos++ )
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{
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c = szNum[ulPos];
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if ( c >= '0' && c <= '9' )
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{
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if ( fDbl )
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{
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*dVal = *dVal * 10.0 + ( c - '0' );
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}
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else if ( *lVal < lLimV || ( *lVal <= lLimV && ( c - '0' ) <= iLimC ) )
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{
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*lVal = *lVal * 10 + ( c - '0' );
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}
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else
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{
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*dVal = (double) *lVal * 10.0 + ( c - '0' );
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fDbl = TRUE;
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}
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if ( fDec )
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iDec++;
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else
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iWidth++;
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}
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else if ( c == '.' && !fDec )
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{
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fDec = TRUE;
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}
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else
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{
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while ( !fDec && ulPos < ulLen )
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{
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if ( szNum[ulPos++] == '.' )
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fDec = TRUE;
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else
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iWidth++;
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}
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if ( fDec )
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iDecR = ulLen - ulPos;
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break;
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}
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}
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}
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if ( fNeg )
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{
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if ( fDbl )
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*dVal = -*dVal;
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else
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*lVal = -*lVal;
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}
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if ( !fDbl && (
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#if defined( PCODE_LONG_LIM )
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( fPCode && !fHex && !PCODE_LONG_LIM( *lVal ) ) ||
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#endif
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fDec ) )
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{
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*dVal = (double) *lVal;
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fDbl = TRUE;
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}
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if ( fDbl && iDec )
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*dVal /= hb_numPow10( iDec );
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if ( piDec )
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*piDec = iDec + iDecR;
|
|
if ( piWidth )
|
|
{
|
|
if ( fHex )
|
|
*piWidth = iWidth;
|
|
else
|
|
{
|
|
int iSize = fDbl ? HB_DBL_LENGTH( *dVal ) : HB_LONG_LENGTH( *lVal );
|
|
|
|
if ( fPCode )
|
|
{
|
|
if ( iWidth < 10 || fNeg )
|
|
*piWidth = iSize;
|
|
else
|
|
*piWidth = iWidth + ( iDec == 0 ? 1 : 0 );
|
|
}
|
|
else
|
|
{
|
|
if ( iSize > 10 || iWidth > 10 )
|
|
*piWidth = iSize;
|
|
else if ( iDec + iDecR == 0 )
|
|
*piWidth = ( int ) ulLen;
|
|
else if ( iWidth == 0 )
|
|
*piWidth = 1;
|
|
else if ( fNeg && iWidth == 1 && *dVal != 0 )
|
|
*piWidth = 2;
|
|
else
|
|
*piWidth = iWidth;
|
|
}
|
|
}
|
|
}
|
|
|
|
return fDbl;
|
|
}
|
|
|
|
BOOL HB_EXPORT hb_compStrToNum( const char* szNum, HB_LONG * plVal, double * pdVal, int * piDec, int * piWidth )
|
|
{
|
|
HB_TRACE(HB_TR_DEBUG, ("hb_compStrToNum( %s, %p, %p, %p, %p)", szNum, plVal, pdVal, piDec, piWidth ));
|
|
return hb_str2number( TRUE, szNum, strlen( szNum ), plVal, pdVal, piDec, piWidth );
|
|
}
|
|
|
|
BOOL HB_EXPORT hb_valStrnToNum( const char* szNum, ULONG ulLen, HB_LONG * plVal, double * pdVal, int * piDec, int * piWidth )
|
|
{
|
|
HB_TRACE(HB_TR_DEBUG, ("hb_valStrToNum( %s, %l, %p, %p, %p, %p)", szNum, ulLen, plVal, pdVal, piDec, piWidth ));
|
|
return hb_str2number( FALSE, szNum, ulLen, plVal, pdVal, piDec, piWidth );
|
|
}
|
|
|
|
BOOL HB_EXPORT hb_strToNum( const char* szNum, HB_LONG * plVal, double * pdVal )
|
|
{
|
|
HB_TRACE(HB_TR_DEBUG, ("hb_strToNum(%s, %p, %p)", szNum, plVal, pdVal ));
|
|
return hb_str2number( FALSE, szNum, strlen( szNum ), plVal, pdVal, NULL, NULL );
|
|
}
|
|
|
|
BOOL HB_EXPORT hb_strnToNum( const char* szNum, ULONG ulLen, HB_LONG * plVal, double * pdVal )
|
|
{
|
|
HB_TRACE(HB_TR_DEBUG, ("hb_strToNum(%s, %l, %p, %p)", szNum, ulLen, plVal, pdVal ));
|
|
return hb_str2number( FALSE, szNum, ulLen, plVal, pdVal, NULL, NULL );
|
|
}
|
|
|
|
/* returns the numeric value of a character string representation of a number */
|
|
double hb_strVal( const char * szText, ULONG ulLen )
|
|
{
|
|
HB_LONG lVal;
|
|
double dVal;
|
|
|
|
HB_TRACE(HB_TR_DEBUG, ("hb_strVal(%s)", szText));
|
|
|
|
if ( ! hb_str2number( FALSE, szText, ulLen, &lVal, &dVal, NULL, NULL ) )
|
|
dVal = ( double ) lVal;
|
|
return dVal;
|
|
}
|
|
|
|
/*
|
|
AJ: 2004-02-23
|
|
Concatenates multiple strings into a single result.
|
|
Eg. hb_xstrcat (buffer, "A", "B", NULL) stores "AB" in buffer.
|
|
*/
|
|
char HB_EXPORT * hb_xstrcat ( char *szDest, const char *szSrc, ... )
|
|
{
|
|
char *szResult = szDest;
|
|
va_list va;
|
|
|
|
HB_TRACE(HB_TR_DEBUG, ("hb_xstrcat(%p, %p, ...)", szDest, szSrc));
|
|
|
|
while( *szDest )
|
|
szDest++;
|
|
|
|
va_start(va, szSrc);
|
|
|
|
while( szSrc )
|
|
{
|
|
while ( *szSrc )
|
|
*szDest++ = *szSrc++;
|
|
szSrc = va_arg ( va, char* );
|
|
}
|
|
|
|
*szDest = '\0';
|
|
va_end ( va );
|
|
return ( szResult );
|
|
}
|
|
|
|
/*
|
|
AJ: 2004-02-23
|
|
Concatenates multiple strings into a single result.
|
|
Eg. hb_xstrcpy (buffer, "A", "B", NULL) stores "AB" in buffer.
|
|
Returns szDest.
|
|
Any existing contents of szDest are cleared. If the szDest buffer is NULL,
|
|
allocates a new buffer with the required length and returns that. The
|
|
buffer is allocated using hb_xgrab(), and should eventually be freed
|
|
using hb_xfree().
|
|
*/
|
|
char HB_EXPORT * hb_xstrcpy ( char *szDest, const char *szSrc, ...)
|
|
{
|
|
const char *szSrc_Ptr;
|
|
va_list va;
|
|
size_t dest_size;
|
|
|
|
HB_TRACE(HB_TR_DEBUG, ("hb_xstrcpy(%p, %p, ...)", szDest, szSrc));
|
|
|
|
if (szDest == NULL)
|
|
{
|
|
va_start (va, szSrc);
|
|
szSrc_Ptr = szSrc;
|
|
dest_size = 1;
|
|
while (szSrc_Ptr)
|
|
{
|
|
dest_size += strlen (szSrc_Ptr);
|
|
szSrc_Ptr = va_arg (va, char *);
|
|
}
|
|
va_end (va);
|
|
|
|
szDest = (char *) hb_xgrab( dest_size );
|
|
}
|
|
|
|
va_start (va, szSrc);
|
|
szSrc_Ptr = szSrc;
|
|
szDest [0] = '\0';
|
|
while (szSrc_Ptr)
|
|
{
|
|
hb_xstrcat (szDest, szSrc_Ptr, NULL );
|
|
szSrc_Ptr = va_arg (va, char *);
|
|
}
|
|
va_end (va);
|
|
return (szDest);
|
|
}
|
|
|