org.unlaxer.tinyexpression.parser.function.SquareRootParser Maven / Gradle / Ivy

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package org.unlaxer.tinyexpression.parser.function;

import org.unlaxer.parser.Parser;
import org.unlaxer.parser.SuggestableParser;
import org.unlaxer.parser.ascii.LeftParenthesisParser;
import org.unlaxer.parser.ascii.RightParenthesisParser;
import org.unlaxer.parser.combinator.NoneChildCollectingParser;
import org.unlaxer.parser.combinator.WhiteSpaceDelimitedChain;
import org.unlaxer.tinyexpression.parser.ExpressionParser;



public class SquareRootParser extends NoneChildCollectingParser {

	private static final long serialVersionUID = -6474424638106932748L;

	
	public SquareRootParser() {
		super();
	}
		
	public static class SqrtFuctionNameParser extends SuggestableParser{

		private static final long serialVersionUID = -8150024353325310449L;

		public SqrtFuctionNameParser() {
			super(true, "sqrt");
		}
		
		@Override
		public String getSuggestString(String matchedString) {
			return "(".concat(matchedString).concat(")");
		}
		
	}

	Parser parser;
	
	@Override
	public void initialize() {
		parser =
			new WhiteSpaceDelimitedChain(
				Parser.get(SqrtFuctionNameParser.class),
				Parser.get(LeftParenthesisParser.class),
				Parser.get(ExpressionParser.class),
				Parser.get(RightParenthesisParser.class)
			);
	}



	@Override
	public Parser createParser() {
		return parser;
	}

}