Using Apache `mod_negotiation` makes it really easy to have Apache
serve any page in the client's preferred language, if available.
-This is the default Debian Apache configuration.
+
+Add 'Options MultiViews' to the wiki directory's configuration in Apache.
When `usedirs` is enabled, one has to set `DirectoryIndex index` for
the wiki context.
language code) for the wiki context can help to ensure
`bla/page/index.en.html` is served as `Content-Language: LL`.
+For details, see [Apache's documentation](http://httpd.apache.org/docs/2.2/content-negotiation.html).
+
lighttpd
--------
once [[intrigeri]]'s `meta` branch is merged.
An integration branch, called `meta-po`, merges [[intrigeri]]'s `po`
-and `meta` branches, and thus has thise additional features.
+and `meta` branches, and thus has this additional features.
Self links
----------
turn that into a hyperlink. However, if a translated page contains a
WikiLink to itself, a hyperlink is inserted, at least with the default
`po_link_to` the link points to the English version of the page. Is there a
-good reason for that to be done? --[[Joey]]
+good reason for that to be done? --[[Joey]]
+
+> The commit 0113c69d4fb in my po branch might fix this. --[[intrigeri]]
+
+>> It may fix it in passing, but shouldn't it also be fixed for the other
+>> `po_link_to` styles? (Also, if `mybestlink` is going to always
+>> just return `bestlink` in this case, there seems no reason to inject
+>> it.) --[[Joey]]
Language display order
----------------------
that po might be replacing the only link on a page, in error?
--[[Joey]]
+> It would replace it. The only problematic case is when another
+> plugin has its own reasons, in its `scan` hook, to add a page
+> that is already there to `$links{$page}`. This other plugin's
+> effect might then be changed by po's `scan` hook... which could
+> be either good (better overall l10n) or bad (break the other
+> plugin's goal). --[[intrigeri]]
+
+>> Right.. well, the cases where links are added is very small.
+>> Grepping for `add_link`, it's just done by link, camelcase, meta, and
+>> tag. All of these are supposed to work just link regular links
+>> so I'd think that is ok. We could probably remove the currently scary
+>> comment about only wanting to change the first link. --[[Joey]]
+
+>>> Commit 3c2bffe21b91684 in my po branch does this. --[[intrigeri]]
+
Name of toplevel index page
---------------------------
Normally at the top index page of a wiki, you see the wiki name at
the top. However, at the top *translated* index page, you see something
-like "index.da".
+like "index.da". --[[Joey]]
+
+> I suggest changing `Render.pm`, line 115, to replace the `$page eq 'index'`
+> test with a predicate call such as isindexpage($page). Such a predicate
+> function could then be overriden by the po plugin. --[[intrigeri]]
+
+>> Could do that, but if you have such a function it's natural to want to
+>> use it elsewhere. Not clear to me it would make sense for po to override
+>> such a function if it were used in some of the other places that compare
+>> to index.
+>>
+>> The other option would be for po to override the template setting.
+>> --[[Joey]]
+
+>>> Great idea. Commit 6c0f9c691c3df3a in my po branch does it. --[[intrigeri]]
+
+Pagespecs
+---------
+
+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]]
+
+Edit links on untranslated pages
+--------------------------------
+
+If a page is not translated yet, the "translated" version of it
+displays wikilinks to other, existing (but not yet translated?)
+pages as edit links, as if those pages do not exist.
+
+That's really confusing, especially as clicking such a link
+brings up an edit form to create a new, english page.
+
+This is with po_link_to=current or negotiated. With default, it doesn't
+happen..
+
+Also, this may only happen if the page being linked to is coming from an
+underlay, and the underlays lack translation to a given language.
+--[[Joey]]
+
+Double commits of po files
+--------------------------
+
+When adding a new english page, the po files are created, committed,
+and then committed again. The second commit makes this change:
+
+ -"Content-Type: text/plain; charset=utf-8\n"
+ -"Content-Transfer-Encoding: ENCODING"
+ +"Content-Type: text/plain; charset=UTF-8\n"
+ +"Content-Transfer-Encoding: ENCODING\n"
+
+Same thing happens when a change to an existing page triggers a po file
+update. --[[Joey]]
+
+Ugly messages with empty files
+------------------------------
+
+If there are empty .mdwn files, the po plugin displays some ugly messages.
+
+Translation of directives
+-------------------------
+If a translated page contains a directive, it may expand to some english
+text, or text in whatever single language ikiwiki is configured to "speak".
+Maybe there could be a way to switch ikiwiki to speaking another language
+when building a non-english page? Then the directives would get translated.
Documentation
-------------