The drawback i see in wordnum is that it ignores repetition of delimiter, for example:
? wordnum('aas,bbb,ccc', 2, ',') --> bbb? wordnum('aas,,bbb,ccc', 2, ',') --> bbbI would expect to receive the empty string as a result of the second function call.
Hugo
"The five senses obstruct or deform the apprehension of reality."
Jorge L. Borges?
"Premature optimization is the root of all evil in programming."
Donald Knuth, repeating C. A. R. Hoare
"To die for a religion is easier than to live it absolutely"
Jorge L. Borges
