header{
	package feb_07;
}

//Analizador SINTCTICO

class Anasint extends Parser;

options {
   buildAST = true;
}

tokens {
	HIERARCHY="HIERARCHY";
	ROOT="ROOT";
	OFFSET="OFFSET";
	CHANNELS="CHANNELS";
	JOINT="JOINT";
	END="END SITE";
	MOTION="MOTION";
	FRAMES="FRAMES";
	TIME="FRAME TIME";
	DATA="DATA";
	JOINTS;
}

hierarchy : HIERARCHY^ root motion EOF!
		   ;

root : ROOT^ IDENT LLA! offset channels joints LLC!
	 ;
	 
offset : OFFSET^ NUMERO NUMERO NUMERO
	   ;

channels : CHANNELS^ NUMERO (IDENT)*
		 ;

joints : ((JOINT IDENT LLA offset channels end)=>joint
	   | nested_joint)+
			{#joints=#(#[JOINTS,"JOINTS"],#joints);}
	   ;

joint : JOINT^ IDENT LLA! offset channels end LLC!
	  ;

nested_joint : JOINT^ IDENT LLA! offset channels joints LLC!
			 ;

end : END LLA! offset LLC!
	;

motion : MOTION frames time data
	   ;
	   
frames : FRAMES DOSPTS! NUMERO
	   ;

time : TIME DOSPTS! NUMERO
	 ;

data : (NUMERO)+
	 ;