counteranalyse.java

词法分析器 可以识别c++的源码,自动生成词法分析表, 在分析结束后会指出源代码中可能的错误 待分析的源代码要以 *源代码.txt的格式保存

package accidenceAnalyse;

import java.util.ArrayList;

public class CounterAnalyse
{
	/*   算符的词法分析*/
	public boolean analyse(String str ,ArrayList<TokenTable> list , ArrayList<String> errorList , int textLine ){
		for(String ss : counter)
			if (ss.equals(str)){
				this.name = str;
				this.ID = 4;
				list.add(new TokenTable(this.ID,this.name));
				return true ;
			}
		String errorStr ="第"+textLine+"行:  无法识别的字符  "+str;
		errorList.add(errorStr);
		return false ;
	}
	
	private int ID = 0;
	private String name = "";
	final static String[] counter = {"+" , "-" , "*" , "/" , "%" , "=" , "<" , ">" , "!" , "?" , "&" , "|" , "~" , "^"};
}