org.sc3d.apt.sss.v3
Class Grammar.NonTerminal

java.lang.Object
  org.sc3d.apt.sss.v3.Grammar
      org.sc3d.apt.sss.v3.Grammar.NonTerminal

Enclosing class:

Grammar

public static class Grammar.NonTerminal
extends Grammar

The subclass of Grammar with 'isTerminal==false'. This class represents quantified non-terminals. By quantified I mean that it can be optional and/or repeatable (as represented in SSS grammar specifications by the symbols '?', '*' and '+'). This class is called 'NonTerminal' only as an abbreviation for 'QuantifiedNonTerminal'.

Nested Class Summary

Nested classes/interfaces inherited from class org.sc3d.apt.sss.v3.Grammar

Grammar.Keyword, Grammar.NonTerminal, Grammar.Production, Grammar.Terminal

Field Summary

boolean	isOptional One of the flags passed to the constructor.
boolean	isRepeatable One of the flags passed to the constructor.
int	numProds The number of Productions.

Fields inherited from class org.sc3d.apt.sss.v3.Grammar

isTerminal

Constructor Summary

Grammar.NonTerminal(Grammar.NonTerminal that, boolean isOptional, boolean isRepeatable)
Constructs a NonTerminal with the same productions as 'that' but different flags.

Grammar.NonTerminal(Grammar.Production[] prods, boolean isOptional, boolean isRepeatable)
Constructs a NonTerminal.

Method Summary

Grammar.Production	get(int index) Returns the Production with index 'index'.
java.lang.String	toString() Returns a String representation of this NonTerminal.

Methods inherited from class java.lang.Object

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

Field Detail

numProds

public final int numProds

The number of Productions.

isOptional

public final boolean isOptional

One of the flags passed to the constructor.

isRepeatable

public final boolean isRepeatable

One of the flags passed to the constructor.

Constructor Detail

Grammar.NonTerminal

public Grammar.NonTerminal(Grammar.Production[] prods,
                           boolean isOptional,
                           boolean isRepeatable)

Constructs a NonTerminal.

Parameters:

prods - an array of Productions that produce this NonTerminal, in order of preference. The array is not copied away, and must therefore not be modified hereafter.

isOptional - 'true' if zero copies of this non-terminal is acceptable, or 'false' to insist on at least one copy.

isRepeatable - 'true' if more than one copy of this non-terminal is acceptable, or 'false' to insist on at most one copy.

Grammar.NonTerminal

public Grammar.NonTerminal(Grammar.NonTerminal that,
                           boolean isOptional,
                           boolean isRepeatable)

Constructs a NonTerminal with the same productions as 'that' but different flags.

Method Detail

get

public Grammar.Production get(int index)

Returns the Production with index 'index'.

toString

public java.lang.String toString()

Returns a String representation of this NonTerminal.

Specified by:

toString in class Grammar