package org.simantics.graph.compiler.tests;

import org.antlr.runtime.ANTLRStringStream;
import org.antlr.runtime.CharStream;
import org.antlr.runtime.CommonTokenStream;
import org.antlr.runtime.Token;
import org.antlr.runtime.TokenStream;
import org.antlr.runtime.tree.Tree;
import org.junit.Test;
import org.simantics.databoard.util.Range;
import org.simantics.graph.compiler.internal.parsing.GraphLexer;
import org.simantics.graph.compiler.internal.parsing.GraphParser;

public class RangeParsingTest {

	public static GraphParser parse(String text) {
		CharStream stream = new ANTLRStringStream(text);
		GraphLexer lexer = new GraphLexer(stream);
		TokenStream tokenStream = new CommonTokenStream(lexer);
		for(int i=1;;++i) {
			Token token = tokenStream.LT(i);
			if(token.getType() == GraphParser.EOF)
				break;
			System.out.println(
					GraphParser.tokenNames[token.getType()] + " " + token.getText());
		}
		return new GraphParser(tokenStream);
	}
	
	@Test
	public void testRangeParsing() throws Exception {
		Tree tree = (Tree)parse("[1..2.3]").parameterValue().getTree();
		System.out.println(tree.toStringTree());
	}
	
	@Test
	public void testRangeInDataboard() throws Exception {
		Range.valueOfUnchecked("[0..1]");
	}
	
}