From: "Tobias C. Rittweiler" <tcr@freebits.de>
To: emacs-devel@gnu.org
Subject: Re: `font-lock-extend-region-functions' vs. `font-lock-extend-after-change-region-function'
Date: Fri, 01 May 2009 18:37:23 +0200 [thread overview]
Message-ID: <873abosrss.fsf@freebits.de> (raw)
In-Reply-To: jwv63gn1a96.fsf-monnier+emacs@gnu.org
Stefan Monnier <monnier@IRO.UMontreal.CA> writes:
> The way I imagine fixing it is by changing jit-lock-functions such that
> the functions on that hook (e.g. font-lock-fontify-region) would return
> the new boundaries they used (or nil if they kept the boundaries passed
> by jit-lock).
I'd also like if the font-lock-extend-region-functions were called with
an argument counter representing the number of extend region passes so
far.
Of course that would be a backwards-incompatible API change but you
could bind a special variable representing the count.
Purpose is to guard against infinite loops.
Alternatively `font-lock-default-fontify-region' could be made smarter
in so far as it could check whether a pass actually changed
font-lock-beg and font-lock-end, and if not, would not try another pass.
(Strictly speaking the latter would also mean a slight API change, but
anyone who were bitten by this should be slapped three times by some
appropriately thick book anyway. :-))
-T.
next prev parent reply other threads:[~2009-05-01 16:37 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-28 15:34 `font-lock-extend-region-functions' vs. `font-lock-extend-after-change-region-function' Tobias C. Rittweiler
2009-04-28 16:10 ` Stefan Monnier
2009-04-28 20:45 ` Tobias C. Rittweiler
2009-04-29 10:42 ` Tobias C. Rittweiler
2009-04-29 13:46 ` Stefan Monnier
2009-04-29 17:40 ` Tobias C. Rittweiler
2009-04-29 20:26 ` Stefan Monnier
2009-04-29 20:45 ` Samuel Bronson
2009-04-29 20:53 ` Stefan Monnier
2009-05-01 16:37 ` Tobias C. Rittweiler [this message]
2009-05-04 19:08 ` Stefan Monnier
2009-05-07 12:30 ` Tobias C. Rittweiler
2009-05-16 12:26 ` Tobias C. Rittweiler
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