gi
Class LR1_Grammar

java.lang.Object
  gi.Lexicon
      gi.Grammar
          gi.LR0_Grammar
              gi.LR1_Grammar

public class LR1_Grammar

extends LR0_Grammar

This class implements an LR(1) parser around a Grammar. The parser adapts to changes in the underlying Grammar. Semantics in a phrase are evaluated during a bottom-up parse, from left to right after all subtrees rooted in the phrase have been constructed. Attributes throughout the phrase are available during evaluation. LR(1) parsing considers context-specific lookahead terminals to more accurately choose between applicable phrases. LR(1) parsing is the default method used for a Grammar around which no parser has been explicitly constructed, and is the recommended method.

Version:

1.2

Author:

© 1999-2004 Craig A. Rich <carich@csupomona.edu>

Method Summary

String

toString() Returns the string representation of this parser, specifically "LR(1)".

Methods inherited from class gi.Grammar

interpret

Methods inherited from class gi.Lexicon

interpret, interpret, interpret, interpret, interpret, interpret

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail

toString

public String toString()

Returns the string representation of this parser, specifically "LR(1)".

Overrides:

toString in class LR0_Grammar

Returns:

the string representation of this parser, specifically "LR(1)".

Since:

1.1