From: Tassilo Horn <tassilo@member.fsf.org>
To: emacs-devel@gnu.org
Subject: Re: hi-lock and overlays
Date: Tue, 19 Jan 2010 08:41:35 +0100 [thread overview]
Message-ID: <87ska2tuc0.fsf@thinkpad.tsdh.de> (raw)
In-Reply-To: <e01d8a51001181351x2d14f35fhbfea26150590c58f@mail.gmail.com> (Lennart Borgman's message of "Mon, 18 Jan 2010 22:51:23 +0100")
Lennart Borgman <lennart.borgman@gmail.com> writes:
Hi Lennart,
>> I was wrong with my previous mail. The problem that hi-lock pattern
>> on the current line are not highlighted, when `hl-line-mode' is
>> enabled is not due to conflicting overlays. The problem is that
>> hi-lock uses overlays only when the undocumented variable
>> `font-lock-fontified' is nil (see `hi-lock-set-pattern'). Else, it
>> uses normal fontification, and overlays (like the one for the current
>> line created by `hl-line-mode') take precedence over that.
>
>
> I would rather turn the question this way:
>
> - Why can't an overlay have a priority that is lower than text?
,----[ (info "(elisp)Overlay Properties") ]
| `priority'
| This property's value (which should be a nonnegative integer
| number) determines the priority of the overlay. No priority, or
| `nil', means zero.
|
| The priority matters when two or more overlays cover the same
| character and both specify the same property; the one whose
| `priority' value is larger overrides the other. For the `face'
| property, the higher priority overlay's value does not completely
| override the other value; instead, its face attributes override
| the face attributes of the lower priority `face' property.
|
| Currently, all overlays take priority over text properties. Please
| avoid using negative priority values, as we have not yet decided
| just what they should mean.
`----
Hm, reading the last paragraph, this would be an option. A negative
priority could be used to make text properties precede overlay
properties.
Anyway, the two other questions of my previous mail still stand.
Bye,
Tassilo
next prev parent reply other threads:[~2010-01-19 7:41 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-17 18:04 Conflicting overlays and the 'priority property Tassilo Horn
2010-01-18 21:33 ` hi-lock and overlays (was: Conflicting overlays and the 'priority property) Tassilo Horn
2010-01-18 21:51 ` Lennart Borgman
2010-01-19 7:41 ` Tassilo Horn [this message]
2010-01-20 15:54 ` hi-lock and overlays Stefan Monnier
2010-01-20 17:19 ` Tassilo Horn
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