grammar Rendszam;

@members {
    int    max_ar=-1;
    String max_rendszam;
    public static void main(String[] args) throws Exception {        
        RendszamLexer lex = new RendszamLexer(new ANTLRFileStream(args[0]));
       	CommonTokenStream tokens = new CommonTokenStream(lex);

        RendszamParser parser = new RendszamParser(tokens);
        try {
            parser.s();
        } catch (RecognitionException e)  {
            e.printStackTrace();
        }
    }
}

/*------------------------------------------------------------------
 * LEXER RULES
 *------------------------------------------------------------------*/

US 		:	'\r'? '\n';
fragment DIGIT	:	'0'..'9' ;
fragment LETTER	:	'A'..'Z' ;
NUM		:	(DIGIT)+;
RENDSZAM	:	LETTER LETTER LETTER DIGIT DIGIT DIGIT;
EQ		:	'=' ;
SPACE		:	' ' {skip();};

/*------------------------------------------------------------------
 * PARSER RULES
 *------------------------------------------------------------------*/

s	:	(sor US)* 
                {System.out.println("A legdragabb auto="+max_rendszam);}; 

sor	:	r=RENDSZAM EQ n=NUM 
                  {int ar = Integer.parseInt($n.text);
                   if (ar>max_ar) {
                     max_ar = ar;
                     max_rendszam = $r.text;
                   }
                  };