141 lines
3.6 KiB
Plaintext
141 lines
3.6 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 of the License, or
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* (at your option) any later version, with one exception:
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*
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* The exception is that if you link the Harbour Runtime Library (HRL)
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* and/or the Harbour Virtual Machine (HVM) with other files to produce
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* an executable, this does not by itself cause the resulting executable
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* to be covered by the GNU General Public License. Your use of that
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* executable is in no way restricted on account of linking the HRL
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* and/or HVM code into it.
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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 program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA (or visit
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* their web site at http://www.gnu.org/).
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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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