maintemp.java

编译器

import java.io.*;
import java.util.*;

public class MainTemp 
{
	public static void main(String[] args) throws IOException
	{
		File file = new File("mytest.txt");
		FileInputStream fis = new FileInputStream(file);
		InputStreamReader isr = new InputStreamReader(fis);
		BufferedReader br = new BufferedReader(isr);
		String source="",temp="";
		while((temp=br.readLine())!=null)
		{
			source += temp+"\n";
		}
		LexAnalyzer lex = new LexAnalyzer();
		ArrayList<Word> list = lex.analysis(source);
		SyntaxParser parser = new SyntaxParser(list);
		SyntaxNode stmts = parser.stmts("program");
		parser.printTree(stmts, 0);
	}
}