/*
 * $Id$
 */

/*
   Harbour Project source code

   Convertion Funtions

   Copyright (C) 1999  Luiz Rafael Culik
   www - http://www.harbour-project.org

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version, with one exception:

   The exception is that if you link the Harbour Runtime Library (HRL)
   and/or the Harbour Virtual Machine (HVM) with other files to produce
   an executable, this does not by itself cause the resulting executable
   to be covered by the GNU General Public License. Your use of that
   executable is in no way restricted on account of linking the HRL
   and/or HVM code into it.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA (or visit
   their web site at http://www.gnu.org/).
*/

/*  $DOC$
 *  $FUNCNAME$
 *   ISBIN()
 *
 *  $CATEGORY$
 *     Conversion
 *  $ONELINER$
 *  Check if the value is a Binary  Number
 *  $SYNTAX$
 *   ISBIN(<CN>) -><CNR>
 *
 *  $ARGUMENTS$
 *  <CN> STRING TO BE CHECKED
 *  $RETURNS$
 *
 *    ^b .T.^b IF THE STRING IS BYNARY
 *    ^b .F.^b^ IF NOT
 *  $DESCRIPTION$
 *	^b check if the passed string is a bynary number or not
 *  $EXAMPLES$
 *
 *  $SEEALSO$
 *    ISOCTAL() ISDEC() ISHEXA()
 *  $INCLUDE$
 *
 *  $END$
 */

FUNCTION IsBin(cString)
   local nX,lFlag:=.t.
   cString:=AllTrim(cString)
   FOR nX:=1 to Len(cString)
      IF !(SubStr(cString,nX,1) $"01")
	 lFlag:=.F.
	 EXIT
      ENDIF
   NEXT nX
   RETURN(lFlag)

/*  $DOC$
 *  $FUNCNAME$
 *   ISOCTAL()
 *
 *  $CATEGORY$
 *     Conversion
 *  $ONELINER$
 *   Check if the value is a Octal  Number
 *  $SYNTAX$
 *   ISOCTAL(<CN>) -><CNR>
 *
 *  $ARGUMENTS$
 *  <CN> STRING TO BE CHECKED
 *  $RETURNS$
 *
 *  ^b .T.^b IF THE STRING IS OCTAL
 *  ^b .F.^b^ IF NOT
 *
 *  $DESCRIPTION$
 *	^b check if the passed string is a octal number or not
 *  $EXAMPLES$
 *
 *  $SEEALSO$
 *  ISBIN() ISDEC() ISHEXA()
 *  $INCLUDE$
 *
 *  $END$
 */

FUNCTION IsOctal(cString)
   local nX,lFlag:=.t.
   cString:=AllTrim(cString)
   FOR nX:=1 to Len(cString)
      if !(SubStr(cString,nX,1) $"01234567")
	 lFlag:=.f.
	 EXIT
      ENDIF
   NEXT nX
   RETURN(lFlag)

/*  $DOC$
 *  $FUNCNAME$
 *   ISDEC()
 *
 *  $CATEGORY$
 *     Conversion
 *  $ONELINER$
 *   Check if the value is a Decimal  Number
 *  $SYNTAX$
 *   ISDEC(<CN>) -><CNR>
 *
 *  $ARGUMENTS$
 *  <CN> STRING TO BE CHECKED
 *  $RETURNS$
 *  ^b .T.^b IF THE STRING IS DECIMAL
 *  ^b .F.^b^ IF NOT
 *  $DESCRIPTION$
 *	^b check if the passed string is a decimal number or not
 *  $EXAMPLES$
 *
 *  $SEEALSO$
 *  ISOCTAL() ISBIN() ISHEXA()
 *  $INCLUDE$
 *
 *  $END$
 */

FUNCTION IsDec(cString)
   local nX,lFlag:=.t.
   cString:=AllTrim(cString)
   FOR nX:=1 to Len(cString)
      if !(SubStr(cString,nX,1) $"0123456789")
	 lFlag:=.f.
	 EXIT
      ENDIF
   NEXT nX
   RETURN(lFlag)

/*  $DOC$
 *  $FUNCNAME$
 *   ISHEXA()
 *
 *  $CATEGORY$
 *     Conversion
 *  $ONELINER$
 *   Check if the value is a Hexal  Number
 *  $SYNTAX$
 *   ISHEXA(<CN>) -><CNR>
 *
 *  $ARGUMENTS$
 *  <CN> STRING TO BE CHECKED
 *  $RETURNS$
 *  ^b .T.^b IF THE STRING IS HEXA
 *  ^b .F.^b^ IF NOT
 *  $DESCRIPTION$
 *	  ^b check if the passed string is a hexa number or not
 *  $EXAMPLES$
 *
 *  $SEEALSO$
 *  ISOCTAL() ISDEC() ISBIN()
 *  $INCLUDE$
 *
 *  $END$
 */

FUNCTION IsHexa(cString)
   local nX,lFlag:=.t.
   cString:=AllTrim(cString)
   FOR nX:=1 to Len(cString)
      if !(SubStr(cString,nX,1) $"0123456789ABCDEF")
	 lFlag:=.f.
	 EXIT
      ENDIF
   NEXT nX
   RETURN(lFlag)

/*  $DOC$
 *  $FUNCNAME$
 *   DECTOBIN()
 *
 *  $CATEGORY$
 *     Conversion
 *  $ONELINER$
 *   Converts a Decimal Value to Binary
 *  $SYNTAX$
 *   DECTOBIN(<CN>) -><CNR>
 *
 *  $ARGUMENTS$
 *  <CN> NUMBER TO BE CONVERTED
 *  $RETURNS$
 *  <CNR>  NUMBER CONVERTED
 *  $DESCRIPTION$
 *
 *  $EXAMPLES$
 *
 *  $SEEALSO$
 *
 *  $INCLUDE$
 *
 *  $END$
 */

FUNCTION DecToBin(nNumber)
   local cNewString:=''
   local nTemp:=0
   WHILE(nNumber > 0)
      nTemp:=(nNumber%2)
      cNewString:=SubStr('01',(nTemp+1),1)+cNewString
      nNumber:=Int((nNumber-nTemp)/2)
   ENDDO
   RETURN(cNewString)

/*  $DOC$
 *  $FUNCNAME$
 *   DECTOOCTAL()
 *
 *  $CATEGORY$
 *     Conversion
 *  $ONELINER$
 *   Converts a Decimal Value to Octal
 *  $SYNTAX$
 *   DECTOOCTAL(<CN>) -><CNR>
 *
 *  $ARGUMENTS$
 *  <CN> NUMBER TO BE CONVERTED
 *  $RETURNS$
 *  <CNR>  NUMBER CONVERTED
 *  $DESCRIPTION$
 *
 *  $EXAMPLES$
 *
 *  $SEEALSO$
 *
 *  $INCLUDE$
 *
 *  $EnNumber$
 */

FUNCTION DecToOctal(nNumber)
   local cNewString:=''
   local nTemp:=0
   WHILE(nNumber > 0)
      nTemp:=(nNumber%8)
      cNewString:=SubStr('01234567',(nTemp+1),1)+cNewString
      nNumber:=Int((nNumber-nTemp)/8)
   ENDDO
   RETURN(cNewString)

/*  $DOC$
 *  $FUNCNAME$
 *   DECTOHEXA()
 *
 *  $CATEGORY$
 *     Conversion
 *  $ONELINER$
 *   Converts a Decimal Value to Hexa
 *  $SYNTAX$
 *   DECTOHEXA(<CN>) -><CNR>
 *
 *  $ARGUMENTS$
 *  <CN> NUMBER TO BE CONVERTED
 *  $RETURNS$
 *  <CNR>  NUMBER CONVERTED
 *  $DESCRIPTION$
 *
 *  $EXAMPLES$
 *
 *  $SEEALSO$
 *
 *  $INCLUDE$
 *
 *  $EnNumber$
 */

FUNCTION DecToHexa(nNumber)
   local cNewString:=''
   local nTemp:=0
   WHILE(nNumber > 0)
      nTemp:=(nNumber%16)
      cNewString:=SubStr('0123456789ABCDEF',(nTemp+1),1)+cNewString
      nNumber:=Int((nNumber-nTemp)/16)
   ENDDO
   RETURN(cNewString)

/*  $DOC$
 *  $FUNCNAME$
 *   BIntODEC()
 *
 *  $CATEGORY$
 *     Conversion
 *  $ONELINER$
 *   Converts a Binary Value to Decimal
 *  $SYNTAX$
 *   BIntODEC(<CN>) -><CNR>
 *
 *  $ARGUMENTS$
 *  <CN> NUMBER TO BE CONVERTED
 *  $RETURNS$
 *  <CNR>  NUMBER CONVERTED
 *  $DESCRIPTION$
 *
 *  $EXAMPLES$
 *
 *  $SEEALSO$
 *
 *  $INCLUDE$
 *
 *  $EnNumber$
 */

FUNCTION BinToDec(cString)
   local nNumber:=0,nX:=0
   local cNewString:=AllTrim(cString)
   local nLen:=Len(cNewString)
   FOR nX:=1 to nLen
      nNumber+=(At(SubStr(cNewString,nX,1),'01')-1)*;
	 (2**(nLen-nX))
   NEXT nX
   RETURN(nNumber)

/*  $DOC$
 *  $FUNCNAME$
 *   OCTALTODEC()
 *
 *  $CATEGORY$
 *     Conversion
 *  $ONELINER$
 *   Converts a Octal Value to Decimal
 *  $SYNTAX$
 *   OCTALTODEC(<CN>) -><CNR>
 *
 *  $ARGUMENTS$
 *  <CN> NUMBER TO BE CONVERTED
 *  $RETURNS$
 *  <CNR>  NUMBER CONVERTED
 *  $DESCRIPTION$
 *
 *  $EXAMPLES$
 *
 *  $SEEALSO$
 *
 *  $INCLUDE$
 *
 *  $EnNumber$
 */

FUNCTION OctalToDec(cString)
   local nNumber:=0,nX:=0
   local cNewString:=AllTrim(cString)
   local nLen:=Len(cNewString)
   FOR nX:=1 to nLen
      nNumber+=(At(SubStr(cNewString,nX,1),'01234567')-1)*;
	 (8**(nLen-nX))
   NEXT nX
   RETURN(nNumber)


/*  $DOC$
 *  $FUNCNAME$
 *   HEXATODEC()
 *  $CATEGORY$
 *     Conversion
 *  $ONELINER$
 *   Converts a Hexa Value to Decimal
 *  $SYNTAX$
 *   HEXATODEC(<CN>) -><CNR>
 *
 *  $ARGUMENTS$
 *  <CN> NUMBER TO BE CONVERTED
 *  $RETURNS$
 *  <CNR>  NUMBER CONVERTED
 *  $DESCRIPTION$
 *
 *  $EXAMPLES$
 *
 *  $SEEALSO$
 *
 *  $INCLUDE$
 *
 *  $EnNumber$
 */

FUNCTION HexaToDec(cString)
   local nNumber:=0,nX:=0
   local cNewString:=AllTrim(cString)
   local nLen:=Len(cNewString)
   FOR nX:=1 to nLen
      nNumber+=(At(SubStr(cNewString,nX,1),'0123456789ABCDEF')-1)*;
	 (16**(nLen-nX))
   NEXT nX
   RETURN nNumber

* EOF: NCONVERT.PRG