Procedure factor; begin if sym=ident then getsym els if sym=number then getsym els if sym=( then begin getsym; expr; if sym=)' then getsym else error end else error end; 1212 Procedure factor; begin if sym=ident then getsym else if sym=number then getsym else if sym= ‘ ( ‘ then begin getsym; expr; if sym= ‘ ) ’ then getsym else error end else error end; –