* Text/overlay property to hide buffer contents from lisp?
@ 2011-04-10 8:49 Tom
2011-04-10 16:02 ` Andreas Röhler
0 siblings, 1 reply; 5+ messages in thread
From: Tom @ 2011-04-10 8:49 UTC (permalink / raw)
To: help-gnu-emacs
I know there are the `invisible' and `intangible' properties to
hide parts of the buffer from the user, but these hidden regions
are apparently not hidden from lisp commands like
query-replace-regexp.
Is there a property which can hide buffer contents like narrow
does, so that lisp commands can't access it either?
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Text/overlay property to hide buffer contents from lisp?
2011-04-10 8:49 Text/overlay property to hide buffer contents from lisp? Tom
@ 2011-04-10 16:02 ` Andreas Röhler
2011-04-10 17:51 ` Perry Smith
0 siblings, 1 reply; 5+ messages in thread
From: Andreas Röhler @ 2011-04-10 16:02 UTC (permalink / raw)
To: help-gnu-emacs
Am 10.04.2011 10:49, schrieb Tom:
> I know there are the `invisible' and `intangible' properties to
> hide parts of the buffer from the user, but these hidden regions
> are apparently not hidden from lisp commands like
> query-replace-regexp.
>
If query-replacs goes into `intangible' sounds like a bug for me.
Whilst with `invisible' it seems reasonable. Emacs don't need eyes... :)
Cheers
Andreas
> Is there a property which can hide buffer contents like narrow
> does, so that lisp commands can't access it either?
>
>
>
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Text/overlay property to hide buffer contents from lisp?
2011-04-10 16:02 ` Andreas Röhler
@ 2011-04-10 17:51 ` Perry Smith
0 siblings, 0 replies; 5+ messages in thread
From: Perry Smith @ 2011-04-10 17:51 UTC (permalink / raw)
To: help-gnu-emacs
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On Apr 10, 2011, at 11:02 AM, Andreas Röhler wrote:
> Am 10.04.2011 10:49, schrieb Tom:
>> I know there are the `invisible' and `intangible' properties to
>> hide parts of the buffer from the user, but these hidden regions
>> are apparently not hidden from lisp commands like
>> query-replace-regexp.
>>
>
> If query-replacs goes into `intangible' sounds like a bug for me.
>
> Whilst with `invisible' it seems reasonable. Emacs don't need eyes... :)
`intangible' is a new concept to me. For anyone else trying to follow along, intangible is documented in the Elisp manual (but not in Emacs' Concept Index which is the first place I looked).
One thing it mentions:
> When the variable `inhibit-point-motion-hooks' is non-`nil', the
> `intangible' property is ignored.
I assume that is not set but it might be.
From grep'ing the source and looking at what is in the Elisp manual and the comments in the code, I too would expect searches to not enter intangible areas. The code also mentioned "sticky forward" and "sticky backward" -- not sure what that is (yet) but that might be affecting things too.
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* Re: Text/overlay property to hide buffer contents from lisp?
[not found] <mailman.3.1302425364.25365.help-gnu-emacs@gnu.org>
@ 2011-04-10 14:16 ` Stefan Monnier
2011-04-10 15:05 ` Tom
0 siblings, 1 reply; 5+ messages in thread
From: Stefan Monnier @ 2011-04-10 14:16 UTC (permalink / raw)
To: help-gnu-emacs
> I know there are the `invisible' and `intangible' properties to
> hide parts of the buffer from the user, but these hidden regions
> are apparently not hidden from lisp commands like
> query-replace-regexp.
> Is there a property which can hide buffer contents like narrow
> does, so that lisp commands can't access it either?
Other than delete-region, no.
Stefan
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Text/overlay property to hide buffer contents from lisp?
2011-04-10 14:16 ` Stefan Monnier
@ 2011-04-10 15:05 ` Tom
0 siblings, 0 replies; 5+ messages in thread
From: Tom @ 2011-04-10 15:05 UTC (permalink / raw)
To: help-gnu-emacs
Stefan Monnier <monnier <at> iro.umontreal.ca> writes:
>
> > Is there a property which can hide buffer contents like narrow
> > does, so that lisp commands can't access it either?
>
> Other than delete-region, no.
>
It's pity, because it could be useful.
I don't know if emacs maintainers plan to implement this feature someday,
but if they don't they should.
^ permalink raw reply [flat|nested] 5+ messages in thread
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2011-04-10 8:49 Text/overlay property to hide buffer contents from lisp? Tom
2011-04-10 16:02 ` Andreas Röhler
2011-04-10 17:51 ` Perry Smith
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2011-04-10 14:16 ` Stefan Monnier
2011-04-10 15:05 ` Tom
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