Re: set-text-properties and jit-lock-mode

[Alan Schmitt <alan.schmitt@polytechnique.org>]

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Hello Eli,

On 2016-02-21 21:30, Eli Zaretskii <eliz@gnu.org> writes:

>> As `set-text-properties' is a function in C, I don't know how to look at
>> its source (any pointers on how to do this would be great).
>
> You don't need to look at its source.  The documentation clearly says
> that it completely replaces the property list of the specified region
> with the properties you specify as its arguments.

Yes, I read that. But as I was not seeing this happen, I wanted to
understand why. I was wrongly assuming set-text-properties was not
changing them, but if I understand your message it does change them, but
they are changed back because of font-lock.

>> Is it supposed not to work for faces when jit-lock is on?
>
> Yes.  Font-lock overwrites the 'face' text properties with its own,
> because it uses set-text-properties.

Is there a way to change the face that plays well with font-lock? I
tried `font-lock-append-text-property' but it did not work.

Thanks,

Alan

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