> From: Alex Bennée <alex.ben...@linaro.org> > Cc: Stefan Monnier <monn...@iro.umontreal.ca>, 23...@debbugs.gnu.org, > rpl...@gmail.com, jwieg...@gmail.com, nljlistb...@gmail.com > Date: Tue, 19 Jul 2016 18:05:37 +0100 > > > Do we care that using save-match-data in every call to replace-match > > might mean a performance hit? If it will, then this will again punish > > most of the users for the benefit of those few who (1) have > > buffer-modification hooks, and (2) those hooks call save-match-data. > > I care unless there is an easy way to identify which buffer modification > hooks are responsible so I can take steps as a user to mitigate the > problems.
Any hook in before-change-functions or after-change-functions that calls save-match-data. If we care about the performance hit, we need to come up with a different solution for this problem (or measure the performance hit and convince ourselves it is not a big deal).
