> How can I convert a given list like [a,b] into a match specification > like [a,b|'_'] to pass to ets? i.e. I may conditionally want > to employ the use of |'_' in the match spec. Is this what you mean? Eshell V5.2 (abort with ^G) 1> L=[a,b]. [a,b] 2> L++'_'. [a,b|'_'] Regards, *Erik.