Re: please implement query-exchange

[Ami Fischman <usenet@fischman.org>]

"Eli Zaretskii" <eliz@is.elta.co.il> writes:

[...]

> Can't you do that with query-replace-regexp using parenthesized
> subexpressions and the \N feature (where N is a digit)?

Is this really possible?  When I first read your post, I just said to
myself "oh, yeah, that's right; that should take care of it" but later on I
actually tried to implement a query-exchange function using only one
query-replace-regexp, and couldn't figure out how to do it.  I see from (a
private email?) that Dan posted to the list that you suggested to him a
regexp that would take care of his particular string of text, but I'm now
more curious about the general problem.  Can anyone here implement an
exchange in a single RE replace?  More an academic challenge than an emacs
bug (or even feature request) since what Dan was asking for can be done
in a lisp function anyway.

Cheers,
-- 
  Ami Fischman
  usenet@fischman.org