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Wed, 19 Mar 2014 08:22:18 +0100
Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux)
Marcin Borkowski <address@hidden> writes:
> Dnia 2014-03-18, o godz. 02:40:35
> lee <address@hidden> napisał(a):
>> could someone please shed a light on the purpose of overlays? I`m
>> wondering under what circumstances they are used, or need to be used.
>> Are they a feature that has been obsoleted by font-lock, or are they
>> still needed?
> With the risk that I say something stupid: isn't font-lock used for
> syntax highlighting?
With hi-lock-mode, either overlays are, or font-lock is used. I`d have
to check if it potentially uses both. Perhaps I can somehow make it use
overlays just to see what happens.
My understanding was that it may depend on the display/terminal whether
font-lock or overlays is/are used. This understanding seems to be
obviously wrong. They are suited for different circumstances.
> If yes, then: what about i-search (using overlays) in a font-lock'ed
What about it? Does it use overlays?
Knowledge is volatile and fluid. Software is power.