"Ben Wing" <ben(a)xemacs.org> writes:
NOTE: This patch has been committed.
OK, I decided to figure out why cperl was so god-damn slow with
font-locking enabled. This addresses that and (big surprise) some more
syntax cache bugs discovered along the way.
1. the updating of mirror tables every time a syntax table was modified
was taking up huge amounts of time so i added a dirty flag and made the
2. no-longer-used char-table-entries were not getting "freed", generating
tons of garbage.
3. syntax_match() was being incorrectly called on mirror tables in the
cache, not the original syntax table.
now -- which of these go into 21.4? #3 obviously. what about 1 and 2?
they make a huge difference in cperl but are not strictly bug fixes.
Query: does anyone have any feedback on this? Has this patch
perceptibly sped up cperl-mode in 21.5?