question: private Variable parseVariableSpecification ( String token ) throws ParseException { if ( ! token . endsWith ( ")" ) ) { throw new ParseException ( "invalid variable specification '" + token + "', not properly formatted" ) ; } if ( token . startsWith ( "R(" ) ) { String content = token . substring ( 2 , token . length ( ) - 1 ) ; int index = content . indexOf ( ';' ) ; if ( index >= 0 ) { double lowerBound = Double . parseDouble ( content . substring ( 0 , index ) ) ; double upperBound = Double . parseDouble ( content . substring ( index + 1 , content . length ( ) ) ) ; return EncodingUtils . newReal ( lowerBound , upperBound ) ; } else { throw new ParseException ( "invalid real specification '" + token + "', expected R(<lb>,<ub>)" ) ; } } else if ( token . startsWith ( "B(" ) ) { String content = token . substring ( 2 , token . length ( ) - 1 ) ; try { int length = Integer . parseInt ( content . trim ( ) ) ; return EncodingUtils . newBinary ( length ) ; } catch ( NumberFormatException e ) { throw new ParseException ( "invalid binary specification '" + token + "', expected B(<length>)" ) ; } } else if ( token . startsWith ( "P(" ) ) { String content = token . substring ( 2 , token . length ( ) - 1 ) ; try { int length = Integer . parseInt ( content . trim ( ) ) ; return EncodingUtils . newPermutation ( length ) ; } catch ( NumberFormatException e ) { throw new ParseException ( "invalid permutation specification '" + token + "', expected P(<length>)" ) ; } } else { throw new ParseException ( "invalid variable specification '" + token + "', unknown type" ) ; } }
target:  Parses a single variable specification from the command line.  This method is case sensitive.