%{
#include <stdlib.h>
#include "y.tab.h"
%}

NUM ([0-9]*\.[0-9]+)
INTNUM [0-9]+
%%

[ \t\r]+

{NUM}  { yylval.vrednost = atof(yytext); yylval.imareal=1; return NUMBER; }
{INTNUM}  { yylval.vrednost = atof(yytext); yylval.imareal=0; return NUMBER; }

[a-z]       { yylval.imeprom = (yytext[0] - 'a');      return VARIABLE; }
[a-z][a-z]  { yylval.imeprom = (yytext[0]- 'a')*26 + (yytext[1]-'a'); return VARIABLE; }
[a-z][a-z][a-z]  { yylval.imeprom = (yytext[0]- 'a')*26*26 + (yytext[1]-'a')*26 + (yytext[2]-'a'); return VARIABLE; }

"+"           { return PLUS; }
"-"           { return MINUS; }
"*" 	      { return TIMES; }
"/"	      { return SLASH; }
"="	      { return EQUALS; }
"\n"	      { return NEWLINE; }
"("	      { return LPAR; }
")"	      { return RPAR; }
"SQRT"        { return KOREN; }
"LOG" 	      { return LOG; }
"SIN"	      { return SIN;}
"COS"	      { return COS;}
"TG"	      { return TGF;}
"CTG"	      { return CTGF;}
"POW"	      { return POW;}
","	      { return COMA;}
"<"	      { return LESS;}
">"	      { return GREATER;}
"<="	      { return LEQUAL; }
">="	      { return GEQUAL; }
.             { return yytext[0]; }
"EXIT"	      { exit(0); }

%%

int yywrap() {
    return 1;
}