RoundBracketGrammarMatcher

java.lang.Object

com.singularsys.jep.configurableparser.matchers.RoundBracketGrammarMatcher

All Implemented Interfaces:: GrammarMatcher, Serializable

public class RoundBracketGrammarMatcher extends Object implements GrammarMatcher

A GrammarMatcher which matches bracketed expressions.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor

Description

RoundBracketGrammarMatcher(Token open, Token close)

Create a RoundBracketGrammarMatcher
Method Summary

Modifier and Type

Method

Description

void

init(Jep jep)

Delayed initialisation, this method is called whenever components of the jep instance are changed.

Node

match(Lookahead2Iterator<Token> it, GrammarParser parser)

Test whether the input matches this pattern.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- RoundBracketGrammarMatcher
  
  public RoundBracketGrammarMatcher(Token open, Token close)
  
  Create a RoundBracketGrammarMatcher
  
  Parameters:
  
  open - token representing an opening bracket
  
  close - token representing a closing bracket
Method Details
- init
  
  public void init(Jep jep)
  
  Description copied from interface: GrammarMatcher
  
  Delayed initialisation, this method is called whenever components of the jep instance are changed.
  
  Specified by:
  
  init in interface GrammarMatcher
  
  Parameters:
  
  jep - the current jep instance.
- match
  
  public Node match(Lookahead2Iterator<Token> it, GrammarParser parser) throws ParseException
  
  Description copied from interface: GrammarMatcher
  
  Test whether the input matches this pattern.
  
  Specified by:
  
  match in interface GrammarMatcher
  
  Parameters:
  
  it - An iterator inspecting the input
  
  parser - the parser to use when evaluating sub expressions
  
  Returns:
  
  if matched returns a node representing the content, return null is does not match
  
  Throws:
  
  ParseException - if there is a syntactical error in the input.