package expr;
public class ContextState
{
	static public final int _STATE_STMT=0;        //context is statement, such as calcuation, assignment,
	static public final int _STATE_VAR_ANNC=1;    //annouce varible
	static public final int _STATE_FUN_ANNC=2;    //announce function
	static public final int _STATE_STRUCT_ANNC=3; //annouce structure		

}
