org.unlaxer.tinyexpression.parser.NumberMatchExpressionParser Maven / Gradle / Ivy

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package org.unlaxer.tinyexpression.parser;

import java.util.List;

import org.unlaxer.Tag;
import org.unlaxer.Token;
import org.unlaxer.parser.Parser;
import org.unlaxer.parser.Parsers;
import org.unlaxer.parser.SuggestableParser;
import org.unlaxer.tinyexpression.parser.javalang.JavaStyleDelimitedLazyChain;
import org.unlaxer.util.annotation.TokenExtractor;

public class NumberMatchExpressionParser extends JavaStyleDelimitedLazyChain implements NumberExpression{
	
	private static final long serialVersionUID = -9078041069929701034L;

	public static Tag choiceTag= Tag.of("numberChoice");
	
	public NumberMatchExpressionParser() {
		super();
		addTag(ExpressionTags.matchExpression.tag());
	}
	
	public static class MatchFuctionNameParser extends SuggestableParser{

		private static final long serialVersionUID = -705291952548250790L;

		public MatchFuctionNameParser() {
			super(true, "match");
		}
		
		@Override
		public String getSuggestString(String matchedString) {
			return "{".concat(matchedString).concat("}");
		}
	}
	
	@Override
	public List getLazyParsers() {
	  return
      //MatchExpression:='match{'CaseExpression,DefaultCaseFactor'}';
      new Parsers(
        Parser.get(MatchFuctionNameParser.class),
        Parser.get(LeftCurlyBraceParser.class),
        Parser.get(NumberCaseExpressionParser.class),//2
        Parser.get(NumberDefaultCaseFactorParser.class),//3
        Parser.get(RightCurlyBraceParser.class)
      );

	}
	
	@TokenExtractor
	public static Token getCaseExpression(Token thisParserParsed) {
		return thisParserParsed.getChildWithParser(NumberCaseExpressionParser.class); //2
	}
	
  @TokenExtractor
	public static Token getDefaultExpression(Token thisParserParsed) {
		return thisParserParsed.getChildWithParser(NumberDefaultCaseFactorParser.class); //3
	}
  
}