%x comment
%{
#define C_LITERAL 1
#define C_IDENTIF 2
#define C_DELIMIT 3
#define C_COMMENT 4

#define S_BOOLEAN 1
#define S_INTEGER 2
#define S_FLOAT   3
#define S_STRING  4
#define S_RESWORD 5

#define V_FALSE   0
#define V_TRUE    1
#define V_NULL    2
#define V_EMPTY   3
%}
	void my_tok(int class, int subclass, int valuecode, char* text) {
	  printf("%d, %d, %d,%s\n", class, subclass, valuecode, text);
	}
%%

	/* literals */
true				my_tok(C_LITERAL, S_BOOLEAN, V_TRUE, yytext);
false				my_tok(C_LITERAL, S_BOOLEAN, V_FALSE, yytext);
null				my_tok(C_LITERAL, S_BOOLEAN, V_NULL, yytext);
[0-9]+				my_tok(C_LITERAL, S_INTEGER, 0, yytext);
[0-9]+e[+\-]?[0-9]+		my_tok(C_LITERAL, S_FLOAT, 0, yytext);
[0-9]+"."[0-9]*(e[+\-]?[0-9]+)?	my_tok(C_LITERAL, S_FLOAT, 0, yytext);
"."[0-9]+(e[+\-]?[0-9]+)?	my_tok(C_LITERAL, S_FLOAT, 0, yytext);

''				my_tok(C_LITERAL, S_STRING, V_EMPTY, yytext);
'(('')|[^'])*'	printf("Class: Literal, Subclass: String, Value: %s\n", yytext);

	/* identifiers */
select	printf("\n\n\nClass: Identificator, Subclass: SELECT reserved word\n");
[a-z][a-z0-9$_#]*	printf("Class: Identifikator, Value: %s\n", yytext);
\"[^"]*\"	printf("Class: Identifikator, Subclass: Quoted: %s\n", yytext);

	/* delimiters */
":="	printf("Class: Delimiter, Value: ASSIGNMENT\n");
"=>"	printf("Class: Delimiter, Value: ASSOTIATION\n");
"||"	printf("Class: Delimiter, Value: CONCATENATION\n");
"**"	printf("Class: Delimiter: %s\n", yytext);
"<<"	printf("Class: Delimiter: %s\n", yytext);
">>"	printf("Class: Delimiter: %s\n", yytext);
".."	printf("Class: Delimiter: %s\n", yytext);
"<>"	printf("Class: Delimiter: %s\n", yytext);
"!="	printf("Class: Delimiter: %s\n", yytext);
"~="	printf("Class: Delimiter: %s\n", yytext);
"^="	printf("Class: Delimiter: %s\n", yytext);
"<="	printf("Class: Delimiter: %s\n", yytext);
">="	printf("Class: Delimiter: %s\n", yytext);
"+"	printf("Class: Delimiter: %s\n", yytext);
"%"	printf("Class: Delimiter: %s\n", yytext);
"."	printf("Class: Delimiter: %s\n", yytext);
"/"	printf("Class: Delimiter: %s\n", yytext);
"("	printf("Class: Delimiter: %s\n", yytext);
")"	printf("Class: Delimiter: %s\n", yytext);
":"	printf("Class: Delimiter: %s\n", yytext);
","	printf("Class: Delimiter: %s\n", yytext);
"*"	printf("Class: Delimiter: %s\n", yytext);
"="	printf("Class: Delimiter: %s\n", yytext);
"<"	printf("Class: Delimiter: %s\n", yytext);
">"	printf("Class: Delimiter: %s\n", yytext);
"@"	printf("Class: Delimiter: %s\n", yytext);
";"	printf("Class: Delimiter: %s\n", yytext);
"-"	printf("Class: Delimiter: %s\n", yytext);

	/* comments */
--.*	printf("Komentar: %s\n", yytext);
"/*"	{BEGIN(comment);printf("Multiline comment start\n");}
<comment>[^*\n]+	printf("Multiline comment contents: %s\n", yytext);
<comment>"*"+[^*/\n]*	printf("Multiline comment contents: %s\n", yytext);
<comment>\n
<comment>"*"+"/"	{BEGIN(INITIAL);printf("Multiline comment end\n");}

	/* whitespace */
[ \t\n\r]+	/*printf("prazno\n");*/

.	printf("Greska! Znak nije prepoznat: %s\n", yytext);
%%