158 lines
4.6 KiB
Plaintext
158 lines
4.6 KiB
Plaintext
/*
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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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* Conversion Funtions
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*
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* Copyright 1999 Luiz Rafael Culik <Culik@sl.conex.net>
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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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FUNCTION IsBin(cString)
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local nX,lFlag:=.t.
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cString:=AllTrim(cString)
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FOR nX:=1 to Len(cString)
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IF !(SubStr(cString,nX,1) $"01")
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lFlag:=.F.
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EXIT
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ENDIF
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NEXT nX
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RETURN(lFlag)
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FUNCTION IsOctal(cString)
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local nX,lFlag:=.t.
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cString:=AllTrim(cString)
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FOR nX:=1 to Len(cString)
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if !(SubStr(cString,nX,1) $"01234567")
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lFlag:=.f.
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EXIT
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ENDIF
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NEXT nX
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RETURN(lFlag)
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FUNCTION IsDec(cString)
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local nX,lFlag:=.t.
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cString:=AllTrim(cString)
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FOR nX:=1 to Len(cString)
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if !(SubStr(cString,nX,1) $"0123456789")
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lFlag:=.f.
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EXIT
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ENDIF
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NEXT nX
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RETURN(lFlag)
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FUNCTION IsHexa(cString)
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local nX,lFlag:=.t.
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cString:=AllTrim(cString)
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FOR nX:=1 to Len(cString)
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if !(SubStr(cString,nX,1) $"0123456789ABCDEF")
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lFlag:=.f.
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EXIT
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ENDIF
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NEXT nX
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RETURN(lFlag)
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FUNCTION DecToBin(nNumber)
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local cNewString:=''
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local nTemp:=0
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WHILE(nNumber > 0)
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nTemp:=(nNumber%2)
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cNewString:=SubStr('01',(nTemp+1),1)+cNewString
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nNumber:=Int((nNumber-nTemp)/2)
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ENDDO
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RETURN(cNewString)
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FUNCTION DecToOctal(nNumber)
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local cNewString:=''
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local nTemp:=0
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WHILE(nNumber > 0)
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nTemp:=(nNumber%8)
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cNewString:=SubStr('01234567',(nTemp+1),1)+cNewString
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nNumber:=Int((nNumber-nTemp)/8)
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ENDDO
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RETURN(cNewString)
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FUNCTION DecToHexa(nNumber)
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local cNewString:=''
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local nTemp:=0
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WHILE(nNumber > 0)
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nTemp:=(nNumber%16)
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cNewString:=SubStr('0123456789ABCDEF',(nTemp+1),1)+cNewString
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nNumber:=Int((nNumber-nTemp)/16)
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ENDDO
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RETURN(cNewString)
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FUNCTION BinToDec(cString)
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local nNumber:=0,nX:=0
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local cNewString:=AllTrim(cString)
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local nLen:=Len(cNewString)
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FOR nX:=1 to nLen
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nNumber+=(At(SubStr(cNewString,nX,1),'01')-1)*;
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(2**(nLen-nX))
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NEXT nX
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RETURN(nNumber)
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FUNCTION OctalToDec(cString)
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local nNumber:=0,nX:=0
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local cNewString:=AllTrim(cString)
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local nLen:=Len(cNewString)
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FOR nX:=1 to nLen
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nNumber+=(At(SubStr(cNewString,nX,1),'01234567')-1)*;
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(8**(nLen-nX))
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NEXT nX
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RETURN(nNumber)
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FUNCTION HexaToDec(cString)
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local nNumber:=0,nX:=0
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local cNewString:=AllTrim(cString)
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local nLen:=Len(cNewString)
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FOR nX:=1 to nLen
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nNumber+=(At(SubStr(cNewString,nX,1),'0123456789ABCDEF')-1)*;
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(16**(nLen-nX))
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NEXT nX
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RETURN nNumber
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