[pmwiki-users] deprecating PCache (Was: Re: PageLists of database contents)

[Patrick R. Michaud]

On Thu, Oct 05, 2006 at 09:42:03AM +0200, Dominique Faure wrote:
> On 10/5/06, Patrick R. Michaud <pmichaud at pobox.com> wrote:
> >
> >I don't think I'll do this for 2.2.  PageStores need to be
> >substantially redesigned anyway to handle non-ASCII
> >characters in filenames, and case-insensitive pagnames
> >on case-sensitive filesystems, and spaces in pagenames,
> >and a bunch of other things that need addressing.
> >So, if changing PCache and search are going to require
> >substantial modifications to PageStore, it'll probably
> >have to wait for 2.3 ...
> >
> >Besides, a deprecation cycle for $PCache would give
> >recipes an opportunity to migrate away from using
> >it before making a switch.
> 
> Then, I would suggest that you could easily provide a kind of API to
> allow (core and) recipes to maintain page related information during
> the parsing instead of directly using $PCache for that -- in the same
> way you already designed the ParseArgs() function.

It's not "easily provide" because a good API is likely to
depend somewhat heavily on the PageStore redesign itself,
which is the part I'm hoping to avoid for 2.2.

Or, I could just state it this way for 2.2:  $PCache is
deprecated, so recipe authors should stick to using the
existing ReadPage/WritePage interface and not make use of 
$PCache.  If there's something in PmWiki for which that's 
not possible, contact me and we'll figure out how to make
it possible.

Pm