de.dhbwstuttgart.parser

Interface JavaParser.yyInput

All Known Implementing Classes:

Scanner

Enclosing class:

JavaParser

public static interface JavaParser.yyInput

must be implemented by a scanner object to supply input to the parser.

Method Summary

Modifier and Type	Method and Description
boolean	advance() move on to next token.
int	token() classifies current token.
java.lang.Object	value() associated with current token.

Method Detail

advance

boolean advance()
         throws java.io.IOException

move on to next token.

Returns:

false if positioned beyond tokens.

Throws:

IOException - on input error.

token

int token()

classifies current token. Should not be called if advance() returned false.

Returns:

current %token or single character.

value

java.lang.Object value()

associated with current token. Should not be called if advance() returned false.

Returns:

value for token().