Number n ::= d | nd (d in Digit)
Symbol s ::= c | sc | sd (c in Char)
Atom a ::= n | s
Expr e ::= a | (e … e)
Posted by 귀천
Number n ::= d | nd (d in Digit)
Symbol s ::= c | sc | sd (c in Char)
Atom a ::= n | s
Expr e ::= a | (e … e)
Posted by 귀천