hlt.language.syntax

Class NonTerminal

java.lang.Object

hlt.language.util.Indexed

hlt.language.util.AbstractListIndexed

hlt.language.syntax.Symbol

hlt.language.syntax.GrammarSymbol

hlt.language.syntax.NonTerminal

All Implemented Interfaces:

Comparable, Named

public class NonTerminal
extends GrammarSymbol

This is the class of nonterminal symbols used by the grammar at parser construction time.

Version:

Last modified on Fri Apr 13 20:05:47 2012 by hak

Author:

Hassan Aït-Kaci

See Also:

GrammarSymbol

Copyright:

© by the author

Field Summary

Fields

Modifier and Type	Field and Description
java.lang.String	nodeType The class name of a parse stack node for this symbol (if != null, the name of a subclass of ParseNode).

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(java.lang.Object other)
boolean	lessThan(Comparable other) Symbols other than operators are ordered by their names, ignoring all leading non-letter characters.

Methods inherited from class hlt.language.syntax.Symbol

name, toString

Methods inherited from class hlt.language.util.AbstractListIndexed

add

Methods inherited from class hlt.language.util.Indexed

hashCode, index

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Field Detail

nodeType

public java.lang.String nodeType

The class name of a parse stack node for this symbol (if != null, the name of a subclass of ParseNode).

Method Detail

equals

public boolean equals(java.lang.Object other)

Overrides:

equals in class GrammarSymbol

lessThan

public final boolean lessThan(Comparable other)

Description copied from class: Symbol

Symbols other than operators are ordered by their names, ignoring all leading non-letter characters. Operators are ordered by their precedences in their category - i.e., this method is overridden in the subclass Operator.

Specified by:

lessThan in interface Comparable

Overrides:

lessThan in class Symbol