ikiwiki/doc/todo/po:_rethink_pagespecs.mdwn

I was suprised that, when using the map directive, a pagespec of "*"
listed all the translated pages as well as regular pages. That can 
make a big difference to an existing wiki when po is turned on,
and seems generally not wanted.
(OTOH, you do want to match translated pages by
default when locking pages.) --[[Joey]]

> Seems hard to me to sort apart the pagespec whose matching pages
> list must be restricted to pages in the master (or current?)
> language, and the ones that should not. The only solution I can see
> to this surprising behaviour is: documentation. --[[intrigeri]]

>> Well, a sorting criteria might be that if a PageSpec is used
>> with a specified locaction, as happens whenever a PageSpec is
>> used on a page, then it should match only `currentlang()`. If it 
>> is used without a location, as in the setup file, then no such limit.

>>> Ok. --[[intrigeri]]

>> Note that
>> `match_currentlang` currently dies if called w/o a location -- if
>> it instead was always true w/o a location, this would just mean that
>> all pagespecs should have `and currentlang()` added to them. How to
>> implement that? All I can think of doing is wrapping
>> `pagespec_translate`.

>>> Seems doable. --[[intrigeri]]

>> The only case I've found where it does make sense to match other
>> language pages is on `l10n.ikiwiki.info` when listing pages that
>> need translation.
>> 
>> Otherwise, it can be documented, but that's not really enough;
>> a user who makes a site using auto-blog.setup and enables po will
>> get a really screwed up blog that lists translations as separate posts
>> and needs significant work to fix. I have thought about making
>> `match_currentlang` a stub in IkiWiki (done in my currentlang branch),
>> so I can use it in all the PageSpecs in the example blog etc, but I
>> can't say I love the idea.
>> --[[Joey]]