新建 文本文档.txt

一个词法分析程序。是编译原理完成的一个作业

			/*	if(c == ' '||c == '\t'|| c=='\n' || (c=='/' && inf.peek() == '*')) {
								if(c == '/') {
									inf.putback(c);
								}
								if(c=='\n')lineno=lineno+1;
								if(id == 0) {
									tt = ERROR;
								} else {
									tt=ID;
								}
								state=DONE;
							} else {
								id = 0;								
								for(int i = 0;i<MAXSPECIALSYMBOLS;i++) {
									if(c == *specialSymbols[i].str) {
										num = 1;state = DONE;tt=ID;inf.putback(c);break;
									}
								}
								str += c;
							} break;*/







	 if(c == ' '|| c == '\t' || c=='\n' || (c=='/' && inf.peek() == '*')) {
								if(c == '/') {
									inf.putback(c);
								}
								if(c=='\n')lineno=lineno+1;
								if(num == 0) {
									tt = ERROR;
								} else {
									tt = NUM;
								}
								state=DONE;
							} else {
						 
								num = 0;
								
								for(int i = 0;i<MAXSPECIALSYMBOLS;i++) {
									if(c == *specialSymbols[i].str) {
										num = 1;state = DONE;tt=NUM;inf.putback(c);break;
									}
								}							
							} break;