Re: Inefficient code in reftex-index.el

[Richard Stallman]

    Which brings me to the suggestion that we add an optional arg to
    set-match-data like this:

      (set-match-data list &optional destroy-markers)

    and change save-match-data to use it 

That would be an improvement, but the next GC will destroy these
markers anyway, so it may not be a big improvement except in code that
does this an awful lot.