main.cpp

一个简单实用的CMM语言编译器,可以帮助了解如何构造一个简单的词法分析器

/**************************************************
* file: main.cpp
* author: wuzuyang
* describe: for test
**************************************************/

#include <stdio.h>
#include "Parser.h"

int main(int argc, char* argv[]){
	char *filename = "test.txt";
	char *fileout = "";
	FILE *fp = NULL;
	
	if(argc > 1){
		filename = argv[1];
	}
	
	if(argc > 2){
		fileout = argv[2];
		fp = fopen(fileout, "w");
	}
	
	Parser parser = Parser(filename);
	SyntaxTree *tree = parser.parse();

	if(tree!=NULL){
		printf("\n************= Tree =****************:\n");
		tree->display();
		if(fp != NULL) tree->display(fp);
	}else{
		parser.printError();
	}
	
	if(fp != NULL) fclose(fp);
	
	printf("\n");
	
	return 0;
}