Re: add function argument names to regex* functions.

You just broke my brain when you say that you read:

By default, only the first match of the pattern is replaced.  If replace_at is specified and greater than zero, then the first "replace_at - 1" matches are skipped before making a single replacement (i.e., the g flag is ignored when replace_at is specified.)

And then say:

I'd expect replace_at to be a character position or something, not an occurrence count.

I guess it isn't a claim you are lying, rather I simply don't follow your mental model of all this and in my mental model behind the proposal I don't believe the typical reader will become confused on that point.  I guess that means I don't find you to be the typical reader, at least so far as this specific topic goes.  But hey, maybe I'm the one in the minority.  In either case we disagree and that was my main point.

David J.