ds

DIGIT= [0-9]
LETTER= [a-zA-Z]

%%

[\n] 		{System.out.println("NL ");}
"main"  	{System.out.println("Keywords ");}
"("		{System.out.println("Left paranthesis ");}
")"		{System.out.println("Right paranthesis ");}
"var" 		{System.out.println("Keywords ");}
"{"		{System.out.println("Left curly braces ");}
"}"		{System.out.println("Right curly braces ");}
(integer|char|string|float)	
		{System.out.println("Datatypes ");}
{LETTER}({LETTER}|{DIGIT}*) 
		{System.out.println("Identifiers ");}
"="		{System.out.println("Assignment operator ");}
"input()" 	{System.out.println("Input Function ");}
"output()" 	{System.out.println("Output Function ");}
"\""({LETTER}+)"\"" 	{System.out.println("String ");}
"if" 		{System.out.println("IF ");}
" " 		{System.out.println("WhiteSpace ");}
","  		{System.out.println("Coma ");}
";"  		{System.out.println("Semicolon ");}
(>|<|>=|<+|==|!=|"|"|&&)  {System.out.println("Logical Operators ");}
("+"|"-"|"*"|"/"|"%")  {System.out.println("Operators Arithmetic ");}
"then" 		{System.out.println("THEN ");}
"else" 		{System.out.println("ELSE ");}
"++"		{System.out.println("Increment Operator ");}
"--"		{System.out.println("Decrement Operator ");}