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From: jack-mac <duthen.mac@gmail.com>
To: help-gnu-emacs@gnu.org
Subject: Re: When are the face text properties actually set?
Date: Thu, 14 Jun 2012 00:43:06 -0700 (PDT)	[thread overview]
Message-ID: <ff958330-5ada-4817-a5d7-a1029bd7f9bc@l32g2000yqc.googlegroups.com> (raw)
In-Reply-To: jwvwr3b8cq1.fsf-monnier+gnu.emacs.help@gnu.org

Thanks a lot, Stefan, for your precious answers!

On 13 juin, 17:18, Stefan Monnier <monn...@iro.umontreal.ca> wrote:
> It's normal: this is handled by jit-lock which adds the property on the
> fly before a chunk of text is displayed.

I did not know the jit-lock system!
When I do "ema
Can you tell me why, when

>
> > If it's normal, is there any way to force the text properties to be
> > set the way they will be set when the point is displayed?
>
> Yes, you can use something like jit-lock-fontify-now.



>
> > I mean: I just want (get-text-property 2400 'face) to return the text
> > property whether it has already been displayed or not!
> > I tried the following which works more or less:
> >         M-: (progn (goto-char 2400) (sit-for 0) (get-text-property
> > 2400 'face))
> >         => font-lock-comment-face
>
> Rather than check the `face' property for `font-lock-comment-face' you
> should check the output of (syntax-ppss), which also has the advantage
> of not depending on highlighting (so you don't need to fiddle with
> jit-lock or worry about those users who disable font-lock).
>
>         Stefan



  reply	other threads:[~2012-06-14  7:43 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-13 14:32 When are the face text properties actually set? jack-mac
2012-06-13 15:18 ` Stefan Monnier
2012-06-14  7:43   ` jack-mac [this message]
2012-06-14  8:40   ` jack-mac
2012-06-14 19:16     ` Stefan Monnier
2012-06-18  9:17       ` jack-mac
2012-06-13 15:39 ` Eli Zaretskii

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