Yesterday I sent out patch 8.1.1321 which adds listener_add().
This makes it possible to find out about text changes and possibly
update text properties or anything else.
The current implementation is quite low-level. That makes it possible
to see exactly what text changed. Also for something like a global
substitute. I wonder if there is use for a much simpler callback, which
would only report the range of lines with any change. That should be
fine to decide where to update highlighting. But for a global subsitute
that changes two lines far apart, the whole area between them would be
reported.
Something like this:
func Listener(start, end)
" Update highlighting from line a:start to line a:end
endfunc
call listener_addsimple('Listener')
Another thing is that the line numbers in the changes are valid for when
the change is made. If later changes insert/delete lines above it, then
those line numbers will need to be adjusted. It would be possible to
add a function that does this, if there is interest.
--
./configure
Checking whether build environment is sane ...
build environment is grinning and holding a spatula. Guess not.
/// Bram Moolenaar -- [email protected] -- http://www.Moolenaar.net \\\
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\\\ an exciting new programming language -- http://www.Zimbu.org ///
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