> All the consecutive chars with a non-nil font-lock-multiline property
> will always be re-fontified together. E.g. if it is put on three
> consecutive lines, a modification on any of the three lines will cause
> all three to be re-fontified.
> Is there a way they can use font-lock to install these properties
> when necessary, automatically?
You can add those properties "manually" from the font-lock-keywords.
You can also set the font-lock-multiline property so as to tell font-lock to
try and add this property automatically: if a font-lock keyword's match
extends over more than one line, font-lock will then add
a font-lock-multiline property over the whole match.
> Could you write documentation for this feature to put into
> lispref/modes.texi?
I don't have much time for it right now, but I'll keep it in mind,
Stefan
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