java_cup.runtime
Interface Scanner

All Known Implementing Classes:

CompLexer

public interface Scanner

Defines the Scanner interface, which CUP uses in the default implementation of lr_parser.scan(). Integration of scanners implementing Scanner is facilitated.

Version:

last updated 23-Jul-1999

Author:

David MacMahon

Method Summary

Symbol

next_token() Return the next token, or null on end-of-file.

Method Detail

next_token

Symbol next_token()
                  throws java.lang.Exception

Return the next token, or null on end-of-file.

Throws:

java.lang.Exception