com.varankin.bnf
Class SyntaxRule

java.lang.Object
  com.varankin.bnf.WrappedDefinitionsList
      com.varankin.bnf.SyntaxRule

public final class SyntaxRule
extends WrappedDefinitionsList

A syntax-rule consists of a meta-identifier (the name of the non-terminal symbol being defined) followed by a defining-symbol followed by a definitions-list followed by a terminator-symbol.

Author:

© 2009 Nikolai Varankine

Field Summary

MetaIdentifier

id Name of non-terminal symbol.

Fields inherited from class com.varankin.bnf.WrappedDefinitionsList

list

Constructor Summary

SyntaxRule(MetaIdentifier aId, DefinitionsList aList)

Method Summary

java.lang.String

toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

id

public final MetaIdentifier id

Name of non-terminal symbol.

Constructor Detail

SyntaxRule

public SyntaxRule(MetaIdentifier aId,
                  DefinitionsList aList)

Parameters:

aId - name of non-terminal symbol identifying the rule.

aList - definitions list comprising the rule.

Throws:

java.lang.NullPointerException - if either meta identifier or definitions list is null.

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class WrappedDefinitionsList