1b0e6e6842
+ contrib/hbmisc/bbabble.c
+ contrib/hbmisc/tests/testbbab.prg
* contrib/hbmisc/hbmisc.hbp
+ BubbleBabbleEncode(): Added BubbleBabble encoder. There is
also an equivalent version written in Harbour in testbbab.prg.
80 lines
1.8 KiB
Plaintext
80 lines
1.8 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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*
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* Copyright 2010 Viktor Szakats (harbour.01 syenar.hu)
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* www - http://harbour-project.org
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*
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*/
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PROCEDURE Main()
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? BubbleBabbleEncode_prg( "" )
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? BubbleBabbleEncode( "" )
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? "xexax"
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? BubbleBabbleEncode_prg( "1234567890" )
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? BubbleBabbleEncode( "1234567890" )
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? "xesef-disof-gytuf-katof-movif-baxux"
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? BubbleBabbleEncode_prg( "Pineapple" )
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? BubbleBabbleEncode( "Pineapple" )
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? "xigak-nyryk-humil-bosek-sonax"
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? BubbleBabbleEncode_prg( "hello" )
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? BubbleBabbleEncode( "hello" )
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? BubbleBabbleEncode_prg( "vszakats" )
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? BubbleBabbleEncode( "vszakats" )
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RETURN
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/* Harbour implementation */
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FUNCTION BubbleBabbleEncode_Prg( cString )
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LOCAL vo := "aeiouy"
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LOCAL co := "bcdfghklmnprstvzx"
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LOCAL cResult := "x"
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LOCAL i
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LOCAL byte1, byte2
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LOCAL nSeed := 1
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i := 1
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DO WHILE .T.
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IF i > Len( cString )
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cResult += SubStr( vo, nSeed % 6 + 1, 1 ) +;
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SubStr( co, 16 + 1, 1 ) +;
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SubStr( vo, nSeed / 6 + 1, 1 )
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EXIT
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ENDIF
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byte1 := Asc( SubStr( cString, i, 1 ) )
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cResult += SubStr( vo, ( ( hb_bitAnd( hb_bitShift( byte1, -6 ), 3 ) + nSeed ) % 6 ) + 1, 1 ) +;
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SubStr( co, hb_bitAnd( hb_bitShift( byte1, -2 ), 15 ) + 1, 1 ) +;
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SubStr( vo, ( ( hb_bitAnd( byte1, 3 ) + ( nSeed / 6 ) ) % 6 ) + 1, 1 )
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IF i + 1 > Len( cString )
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EXIT
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ENDIF
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byte2 := Asc( SubStr( cString, i + 1, 1 ) )
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cResult += SubStr( co, hb_bitAnd( hb_bitShift( byte2, -4 ), 15 ) + 1, 1 ) +;
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"-" +;
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SubStr( co, hb_bitAnd( byte2, 15 ) + 1, 1 )
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nSeed := ( nSeed * 5 + byte1 * 7 + byte2 ) % 36
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i += 2
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ENDDO
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RETURN cResult + "x"
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