com.singularsys.extensions.structure

Interface GrammaticalRuleI

All Superinterfaces:

GrammarMatcher, java.io.Serializable

All Known Implementing Classes:

BlockRule, ControlRule, ExpressionRule, JavaForRule, JavaIfRule, JavaWhileRule, PossiblyTerminatedExpressionRule, SequenceRule, SequenceSeparatorRule, StatementRule, TerminatedExpressionRule

public interface GrammaticalRuleI
extends GrammarMatcher

Indicates rules for parsing structured code. Defines a match method grammatical rules should implement.

Author:

Richard Morris

Method Summary

Modifier and Type	Method and Description
Node	match(Lookahead2Iterator<Token> it, GrammarParser parser) Attempt to parse the input using the rule

Methods inherited from interface com.singularsys.jep.configurableparser.matchers.GrammarMatcher

init

Method Detail

match

Node match(Lookahead2Iterator<Token> it,
           GrammarParser parser)
    throws ParseException

Attempt to parse the input using the rule

Specified by:

match in interface GrammarMatcher

Parameters:

it - iterator with tokens to parse

parser - the parser to parse any components of the rule

Returns:

successful parses should return a Node, null if unsuccessful

Throws:

ParseException - if there is a syntactical error