%{
#include <string.h>
#include "util.h"
#include "symbol.h"
#include "absyn.h"
#include "y.tab.h"
#include "errormsg.h"

int charPos=1;

int yywrap(void)
{
 charPos=1;
 return 1;
}


void adjust(void)
{
 EM_tokPos=charPos;
 charPos+=yyleng;
}

%}

%%
" "			                	 {adjust(); continue;}
"\n"		              		 {adjust(); EM_newline(); continue;}
","			                	 {adjust(); return COMMA;}
":"			                	 {adjust(); return COLON;}
";"			                	 {adjust(); return SEMICOLON;}



array		               		 {adjust(); return ARRAY;}
if  		               		 {adjust(); return IF;}
then  	               		 {adjust(); return THEN;}
else 		               		 {adjust(); return ELSE;}
while		               		 {adjust(); return WHILE;}
for  		               		 {adjust(); return FOR;}
to  		               		 {adjust(); return TO;}
do  		               		 {adjust(); return DO;}
let  		               		 {adjust(); return LET;}
in  		               		 {adjust(); return IN;}
end  		               		 {adjust(); return END;}
of  		               		 {adjust(); return OF;}
break  	             			 {adjust(); return BREAK;}
nil  		              		 {adjust(); return NIL;}
func             			 {adjust(); return FUNCTION;}
var  		               		 {adjust(); return VAR;}
type  	             			 {adjust(); return TYPE;}


"["			                	 {adjust(); return LPAREN;}
"]"			                	 {adjust(); return RPAREN;}
"("			                	 {adjust(); return LBRACK;}
")"			                	 {adjust(); return RBRACK;}
"{"			                	 {adjust(); return LBRACE;}
"}"			                	 {adjust(); return RBRACE;}
"."			                	 {adjust(); return DOT;}
"+"			                	 {adjust(); return PLUS;}
"-"			                	 {adjust(); return MINUS;}
"*"			                	 {adjust(); return TIMES;}
"/"			                	 {adjust(); return DIVIDE;}
"=="			                	 {adjust(); return EQ;}
"<>"		               		 {adjust(); return NEQ;}
"<"			                	 {adjust(); return LT;}
"<="		              		 {adjust(); return LE;}
">"			                	 {adjust(); return GT;}
">="		               		 {adjust(); return GE;}
"&"			                 	 {adjust(); return AND;}
"|"				                 {adjust(); return OR;}
":="				               {adjust(); return ASSIGN;}
[a-zA-Z]+	               	 {adjust(); printf("ID is %s", yytext); yylval.sval=yytext; return ID;}
[0-9]+		             		 {adjust(); yylval.ival=atoi(yytext); return INT;}