Author: JK
Subject: How often can we use strlen?
Date: Friday, 14 Feb 2020, 14:32:56

In strwrs, can we assume that the replacement rules are short enough so we can run strlen(Fi) and strlen(Ti) each time a replacement is being made?

It would be easy, just somewhat messier, to calculate all string lengths when the arguments are first read in. That would then allow efficient operation with absurdly long replacement strings.