word.java

用java实现的编译器. 包括语法分析

package lexer;

public class Word extends Token {
    public String lexeme = "";
    public Word(String s, int tag) { 
	super(tag);
	lexeme = s;
    }
    public String toString() { return lexeme;}
    public static final Word
	and = new Word("&&", Tag.AND),
	or  = new Word("||", Tag.OR),
	eq  = new Word("==", Tag.EQ),
	ne  = new Word("!=", Tag.NE),
	le  = new Word("<=", Tag.LE),
	ge  = new Word(">=", Tag.GE),
	minus = new Word("minus", Tag.MINUS),
	True = new Word("true", Tag.TRUE),
	False = new Word("false", Tag.FALSE),
	temp = new Word("t", Tag.TEMP);
}