* Use of display properties as a caching mechanism
@ 2009-06-24 10:19 Nicolas Girard
2009-06-24 10:26 ` Carsten Dominik
0 siblings, 1 reply; 2+ messages in thread
From: Nicolas Girard @ 2009-06-24 10:19 UTC (permalink / raw)
To: emacs-orgmode
When hacking the org-icons stuff, I came to realize that emacs allows
to attach any set or property/value to any part of a buffer.
It seems to me like org-mode could perfectly use this as a caching mechanism.
What bout storing time-expensive informations as special properties
attached to the first '*' of a heading ?
The price to pay would be to enforce the consistency of this cache --
as with any cache, after all; as a benefit, this may boost org-mode's
performances.
What do you think ?
Nicolas
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Use of display properties as a caching mechanism
2009-06-24 10:19 Use of display properties as a caching mechanism Nicolas Girard
@ 2009-06-24 10:26 ` Carsten Dominik
0 siblings, 0 replies; 2+ messages in thread
From: Carsten Dominik @ 2009-06-24 10:26 UTC (permalink / raw)
To: Nicolas Girard; +Cc: emacs-orgmode
On Jun 24, 2009, at 12:19 PM, Nicolas Girard wrote:
> When hacking the org-icons stuff, I came to realize that emacs allows
> to attach any set or property/value to any part of a buffer.
>
> It seems to me like org-mode could perfectly use this as a caching
> mechanism.
> What bout storing time-expensive informations as special properties
> attached to the first '*' of a heading ?
> The price to pay would be to enforce the consistency of this cache --
> as with any cache, after all; as a benefit, this may boost org-mode's
> performances.
> What do you think ?
I have been there, and I am using stuff like that for column view.
However, Org-mode's commitment to plain text makes it possible
that text is being changed behind its back, so most of the
time, complete rescans are appropriate. Keeping a cache consistent
would be a huge problem.
- Carsten
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