diff --git a/src/lexer.l b/src/lexer.l
index 2d7d819..f777781 100644
--- a/src/lexer.l
+++ b/src/lexer.l
@@ -9,9 +9,11 @@
 #include "ast.h"
 #include "parser.h"
 
+#define TESTINFO(type,value) printf("LexToken(%s,%s,%d))\n",type,value,yylineno)
 int line_cnt = 1;
 %}
 
+
 MultilineComment	    "/*"([^\*]|(\*)*[^\*/])*(\*)*"*/"
 SingleLineComment	    "//"[^\n]+
 Lex_err [1-9][0-9]*[a-zA-Z]+[0-9]*|0[0-7]*[8-9a-zA-Z_]+[0-9a-zA-Z_]* 
@@ -26,39 +28,39 @@ Lex_err [1-9][0-9]*[a-zA-Z]+[0-9]*|0[0-7]*[8-9a-zA-Z_]+[0-9a-zA-Z_]*
 }
 "\n" { line_cnt++; }
 [ \t] { }
-"int" { return INT; }
-"float" { return FLOAT; }
-"void" { return VOID; }
-"const" { return CONST; }
-"return" { return RETURN; }
-"if" { return IF; }
-"else" { return ELSE; }
-"while" { return WHILE; }
-"break" { return BREAK; }
-"continue" { return CONTINUE; }
-"(" { return LP; }
-")" { return RP; }
-"[" { return LB; }
-"]" { return RB; }
-"{" { return LC; }
-"}" { return RC; }
-"," { return COMMA; }
-";" { return SEMICOLON; }
-"+" { return PLUS; }
-"-" { return MINUS; }
-"!" { return NOT; }
-"=" { return ASSIGN; }
-"*" { return MUL; }
-"/" { return DIV; }
-"%" { return MOD; }
-"&&" { return AND; }
-"||" { return OR; }
-"==" { return EQ; }
-"!=" { return NE; }
-"<" { return LT; }
-"<=" { return LE; }
-">" { return GT; }
-">=" { return GE; }
+"int" { TESTINFO("INT"); return INT; }
+"float" { TESTINFO("FLOAT"); return FLOAT; }
+"void" { TESTINFO("VOID");return VOID; }
+"const" { TESTINFO("CONST"); return CONST; }
+"return" { TESTINFO("RETURN"); return RETURN; }
+"if" { TESTINFO("IF"); return IF; }
+"else" { TESTINFO("ELSE") return ELSE; }
+"while" { TESTINFO("WHILE");return WHILE; }
+"break" { TESTINFO("BREAK");return BREAK; }
+"continue" { TESTINFO("CONTINUE"); return CONTINUE; }
+"(" { TESTINFO("LP");return LP; }
+")" { TESTINFO("RP");return RP; }
+"[" { TESTINFO("LB");return LB; }
+"]" { TESTINFO("RB");return RB; }
+"{" { TESTINFO("LC");return LC; }
+"}" { TESTINFO("RC");return RC; }
+"," { TESTINFO("COMMA");return COMMA; }
+";" { TESTINFO("SEMI");return SEMICOLON; }
+"+" { TESTINFO("PLUS");return PLUS; }
+"-" { TESTINFO(MINUS);return MINUS; }
+"!" { TESTINFO("NOT");return NOT; }
+"=" { TESTINFO("ASSIGN");return ASSIGN; }
+"*" { TESTINFO("MUL");return MUL; }
+"/" { TESTINFO("DIV");return DIV; }
+"%" { TESTINFO("MOD");return MOD; }
+"&&" { TESTINFO("AND");return AND; }
+"||" { TESTINFO("OR");return OR; }
+"==" { TESTINFO("EQ");return EQ; }
+"!=" { TESTINFO("NE");return NE; }
+"<" { TESTINFO("LT");return LT; }
+"<=" { TESTINFO("LE");return LE; }
+">" { TESTINFO("GT");return GT; }
+">=" { TESTINFO("GE");return GE; }
 0[xX][0-9a-fA-F]* {
     int val = 0;
     int len = strlen(yytext);
@@ -70,6 +72,7 @@ Lex_err [1-9][0-9]*[a-zA-Z]+[0-9]*|0[0-7]*[8-9a-zA-Z_]+[0-9a-zA-Z_]*
             val += yytext[i] - 'a' + 10;
     }
     yylval.int_val = val;
+    TESTINFO("INT_LIT");
     return INT_LIT;
 }
 
@@ -77,9 +80,13 @@ Lex_err [1-9][0-9]*[a-zA-Z]+[0-9]*|0[0-7]*[8-9a-zA-Z_]+[0-9a-zA-Z_]*
     yylval.str_val = (char *)malloc(strlen(yytext) + 1);
     strcpy(yylval.str_val, yytext);
     yylval.str_val[strlen(yytext)] = '\0';
+    TESTINFO("ID");
     return ID;
 }
-[0-9]*\.[0-9]+f?|[0-9]+e-?[0-9]+f? { yylval.float_val = atof(yytext); return FLOAT_LIT; }
+[0-9]*\.[0-9]+f?|[0-9]+e-?[0-9]+f? { 
+    yylval.float_val = atof(yytext); 
+    TESTINFO("FLOAT_LIT");
+    return FLOAT_LIT; }
 {Lex_err} { return LEX_ERR; }
 [1-9][0-9]*|0 { yylval.int_val = atoi(yytext); return INT_LIT; }
 0[0-7]+ {
@@ -88,6 +95,7 @@ Lex_err [1-9][0-9]*[a-zA-Z]+[0-9]*|0[0-7]*[8-9a-zA-Z_]+[0-9a-zA-Z_]*
     for (int i = 1; i < len; i++)
         val = (val << 3) + yytext[i] - '0';
     yylval.int_val = val;
+    TESTINFO("INT_LIT");
     return INT_LIT;
 }
 . { }