408 lines
7.5 KiB
Plaintext
408 lines
7.5 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
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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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/* $DOC$
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* $FUNCNAME$
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* ISBIN()
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*
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* $CATEGORY$
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* Conversion
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* $ONELINER$
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* Check if the value is a Binary Number
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* $SYNTAX$
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* ISBIN(<CN>) -><CNR>
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*
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* $ARGUMENTS$
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* <CN> STRING TO BE CHECKED
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* $RETURNS$
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*
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* ^b .T.^b IF THE STRING IS BYNARY
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* ^b .F.^b^ IF NOT
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* $DESCRIPTION$
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* ^b check if the passed string is a bynary number or not
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* $EXAMPLES$
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*
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* $SEEALSO$
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* ISOCTAL(), ISDEC(), ISHEXA()
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* $INCLUDE$
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*
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* $END$
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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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/* $DOC$
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* $FUNCNAME$
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* ISOCTAL()
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*
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* $CATEGORY$
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* Conversion
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* $ONELINER$
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* Check if the value is a Octal Number
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* $SYNTAX$
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* ISOCTAL(<CN>) -><CNR>
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*
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* $ARGUMENTS$
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* <CN> STRING TO BE CHECKED
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* $RETURNS$
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*
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* ^b .T.^b IF THE STRING IS OCTAL
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* ^b .F.^b^ IF NOT
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*
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* $DESCRIPTION$
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* ^b check if the passed string is a octal number or not
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* $EXAMPLES$
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*
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* $SEEALSO$
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* ISBIN(), ISDEC(), ISHEXA()
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* $INCLUDE$
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*
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* $END$
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*/
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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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/* $DOC$
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* $FUNCNAME$
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* ISDEC()
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*
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* $CATEGORY$
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* Conversion
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* $ONELINER$
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* Check if the value is a Decimal Number
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* $SYNTAX$
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* ISDEC(<CN>) -><CNR>
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*
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* $ARGUMENTS$
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* <CN> STRING TO BE CHECKED
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* $RETURNS$
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* ^b .T.^b IF THE STRING IS DECIMAL
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* ^b .F.^b^ IF NOT
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* $DESCRIPTION$
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* ^b check if the passed string is a decimal number or not
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* $EXAMPLES$
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*
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* $SEEALSO$
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* ISOCTAL(), ISBIN(), ISHEXA()
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* $INCLUDE$
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*
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* $END$
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*/
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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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/* $DOC$
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* $FUNCNAME$
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* ISHEXA()
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*
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* $CATEGORY$
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* Conversion
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* $ONELINER$
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* Check if the value is a Hexal Number
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* $SYNTAX$
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* ISHEXA(<CN>) -><CNR>
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*
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* $ARGUMENTS$
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* <CN> STRING TO BE CHECKED
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* $RETURNS$
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* ^b .T.^b IF THE STRING IS HEXA
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* ^b .F.^b^ IF NOT
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* $DESCRIPTION$
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* ^b check if the passed string is a hexa number or not
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* $EXAMPLES$
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*
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* $SEEALSO$
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* ISOCTAL(), ISDEC(), ISBIN()
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* $INCLUDE$
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*
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* $END$
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*/
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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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/* $DOC$
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* $FUNCNAME$
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* DECTOBIN()
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*
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* $CATEGORY$
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* Conversion
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* $ONELINER$
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* Converts a Decimal Value to Binary
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* $SYNTAX$
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* DECTOBIN(<CN>) -><CNR>
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*
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* $ARGUMENTS$
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* <CN> NUMBER TO BE CONVERTED
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* $RETURNS$
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* <CNR> NUMBER CONVERTED
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* $DESCRIPTION$
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*
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* $EXAMPLES$
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*
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* $SEEALSO$
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*
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* $INCLUDE$
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*
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* $END$
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*/
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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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/* $DOC$
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* $FUNCNAME$
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* DECTOOCTAL()
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*
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* $CATEGORY$
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* Conversion
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* $ONELINER$
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* Converts a Decimal Value to Octal
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* $SYNTAX$
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* DECTOOCTAL(<CN>) -><CNR>
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*
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* $ARGUMENTS$
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* <CN> NUMBER TO BE CONVERTED
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* $RETURNS$
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* <CNR> NUMBER CONVERTED
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* $DESCRIPTION$
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*
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* $EXAMPLES$
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*
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* $SEEALSO$
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*
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* $INCLUDE$
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*
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* $END$
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*/
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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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/* $DOC$
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* $FUNCNAME$
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* DECTOHEXA()
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*
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* $CATEGORY$
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* Conversion
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* $ONELINER$
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* Converts a Decimal Value to Hexa
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* $SYNTAX$
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* DECTOHEXA(<CN>) -><CNR>
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*
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* $ARGUMENTS$
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* <CN> NUMBER TO BE CONVERTED
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* $RETURNS$
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* <CNR> NUMBER CONVERTED
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* $DESCRIPTION$
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*
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* $EXAMPLES$
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*
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* $SEEALSO$
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*
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* $INCLUDE$
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*
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* $END$
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*/
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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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/* $DOC$
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* $FUNCNAME$
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* BIntODEC()
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*
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* $CATEGORY$
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* Conversion
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* $ONELINER$
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* Converts a Binary Value to Decimal
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* $SYNTAX$
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* BIntODEC(<CN>) -><CNR>
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*
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* $ARGUMENTS$
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* <CN> NUMBER TO BE CONVERTED
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* $RETURNS$
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* <CNR> NUMBER CONVERTED
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* $DESCRIPTION$
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*
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* $EXAMPLES$
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*
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* $SEEALSO$
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*
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* $INCLUDE$
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*
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* $END$
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*/
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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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/* $DOC$
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* $FUNCNAME$
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* OCTALTODEC()
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*
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* $CATEGORY$
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* Conversion
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* $ONELINER$
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* Converts a Octal Value to Decimal
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* $SYNTAX$
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* OCTALTODEC(<CN>) -><CNR>
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*
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* $ARGUMENTS$
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* <CN> NUMBER TO BE CONVERTED
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* $RETURNS$
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* <CNR> NUMBER CONVERTED
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* $DESCRIPTION$
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*
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* $EXAMPLES$
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*
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* $SEEALSO$
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*
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* $INCLUDE$
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*
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* $END$
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*/
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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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/* $DOC$
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* $FUNCNAME$
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* HEXATODEC()
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* $CATEGORY$
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* Conversion
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* $ONELINER$
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* Converts a Hexa Value to Decimal
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* $SYNTAX$
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* HEXATODEC(<CN>) -><CNR>
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*
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* $ARGUMENTS$
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* <CN> NUMBER TO BE CONVERTED
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* $RETURNS$
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* <CNR> NUMBER CONVERTED
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* $DESCRIPTION$
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*
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* $EXAMPLES$
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*
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* $SEEALSO$
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*
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* $INCLUDE$
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*
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* $END$
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*/
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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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* EOF: NCONVERT.PRG
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