import java.io.FileInputStream;
import java.nio.charset.StandardCharsets;
import java.util.Vector;

import org.antlr.v4.runtime.*;
import org.antlr.v4.runtime.tree.*;

public class MainRunner {

	public static void main(String[] args) throws Exception {
		// get interface structure
		FileInputStream fs = new FileInputStream(CommonHelper.getInputFilePath("BMExports.hpp"));
		CharStream antlrStream = CharStreams.fromStream(fs, StandardCharsets.UTF_8);
		ExpFctsLexer lexer = new ExpFctsLexer(antlrStream);
		CommonTokenStream tokens = new CommonTokenStream(lexer);
		ExpFctsParser parser = new ExpFctsParser(tokens);

		// parsing data
		ParseTree tree = parser.program();
		ParseTreeWalker walker = new ParseTreeWalker();
		ExpFctsWalker worker = new ExpFctsWalker();
		walker.walk(worker, tree);
		fs.close();

		// get data and write them
		ExpFctsHelper.ExpFctCollection result = worker.getResult();
		JsonWriter.writeJson(result);
		
		// print message.
		System.out.println("Done");
	}
}