public void setExceptionSpaceBefore ( boolean isWhite ) { if ( previousExceptionList != null && exceptionValidPrevious ) { previousExceptionList . get ( previousExceptionList . size ( ) - 1 ) . setWhitespaceBefore ( isWhite ) ; } else { if ( exceptionList != null ) { exceptionList . get ( exceptionList . size ( ) - 1 ) . setWhitespaceBefore ( isWhite ) ; } } }
Sets the attribute on the exception that determines matching of patterns that depends on whether there was a space before the token matching the exception or not . The same procedure is used for tokens that are valid for previous or current tokens .