`po_slave_languages` is used to set the list of supported "slave"
languages, such as:
- po_slave_languages => { 'fr' => { 'name' => 'Français', },
- 'es' => { 'name' => 'Castellano', },
- 'de' => { 'name' => 'Deutsch', }
+ po_slave_languages => { 'fr' => 'Français',
+ 'es' => 'Castellano',
+ 'de' => 'Deutsch',
}
+Decide which pages are translatable
+-----------------------------------
+
+The `po_translatable_pages` setting configures what pages are
+translatable. It is a [[ikiwiki/PageSpec]], so you have lots of
+control over what kind of pages are translatable.
+
+The `*.LL.po` translations files are anyway not considered as being
+translatable, so you don't need to worry about excluding them manually
+from this [[ikiwiki/PageSpec]].
+
+Internal links
+--------------
+
+One can use the `po_link_to_` option in `ikiwiki.setup` to choose how
+internal links should be generated, depending on web server features
+and site-specific preferences.
+
+### Default linking behavior
+
+If `po_link_to` is unset, or set to `default`, ikiwiki's default
+linking behavior is preserved: `\[[page]]` links to the master
+language's page.
+
+### Link to negotiated language
+
+If `po_link_to` is set to `negotiated`, `\[[page]]` links to the
+negotiated preferred language, *i.e.* `foo/page/`.
+
+(In)compatibility notes:
+
+- `po_link_to => negotiated` provides no useful behavior if `usedirs`
+ is disabled; this option combination is neither implemented nor
+ allowed
+- `po_link_to => negotiated` provides no useful behavior if the web
+ server does not support Content Negotiation
+
+### Link to current language
+
+If `po_link_to` is set to `current` and the destination page is either
+a translatable page or a translation, `\[[page]]` links to the current
+page's language, *i.e.*:
+
+- `foo/page/index.LL.html` if `usedirs` is enabled
+- `foo/page.LL.html` if `usedirs` is disabled
+
Server support
==============
emulate this?
-TODO
-====
+Usage
+=====
-Internal links
---------------
+Templates
+---------
-One can use the `po_link_to_` option in `ikiwiki.setup` to choose how
-internal links should be generated, depending on web server features
-and site-specific preferences.
+The `OTHERLANGUAGES` loop provides ways to display other languages'
+versions of the same page, and the translations' status.
-### Default linking behavior
+One typically adds the following code to `templates/page.tmpl`:
-If `po_link_to` is unset, or set to `default`, ikiwiki's default
-linking behavior is preserved: `[[page]]` links to the master
-language's page.
+ <TMPL_IF NAME="OTHERLANGUAGES">
+ <div id="otherlanguages">
+ <ul>
+ <TMPL_LOOP NAME="OTHERLANGUAGES">
+ <li>
+ <a href="<TMPL_VAR NAME="URL">"><TMPL_VAR NAME="LANGUAGE"></a>
+ <TMPL_UNLESS NAME="MASTER">
+ (<TMPL_VAR NAME="PERCENT"> %)
+ </TMPL_UNLESS>
+ </li>
+ </TMPL_LOOP>
+ </ul>
+ </div>
+ </TMPL_IF>
-### Link to negotiated language
+The following variables are available inside the loop (for every page in):
-If `po_link_to` is set to `negotiated`, `[[page]]` links to the
-negotiated preferred language, *i.e.* `foo/page/`.
+- `URL` - url to the page
+- `CODE` - two-letters language code
+- `LANGUAGE` - language name (as defined in `po_slave_languages`)
+- `MASTER` - is true (1) if, and only if the page is a "master" page
+- `PERCENT` - for "slave" pages, is set to the translation completeness, in percents
-(In)compatibility notes:
+Additional PageSpec tests
+-------------------------
-- `po_link_to => negotiated` provides no useful behavior if `usedirs`
- is disabled:
-- `po_link_to => negotiated` provides no useful behavior if the web
- server does not support Content Negotiation
+This plugin enhances the regular [[ikiwiki/PageSpec]] syntax with some
+additional tests that are documented [[here|ikiwiki/pagespec/po]].
-### Link to current language
-If `po_link_to` is set to `current` and the destination page is either
-a translatable page or a translation, `[[page]]` links to the current
-page's language, *i.e.*:
-
-- `foo/page/index.LL.html` if `usedirs` is enabled
-- `foo/page.LL.html` if `usedirs` is disabled
+TODO
+====
-Display available translations
-------------------------------
+Link relationships
+------------------
-The [[linguas|plugins/contrib/linguas]] plugin has some code that can
-be used as a basis to display the existing translations, and allow to
-navigate between them.
+Should pages using the `OTHERLANGUAGES` template loop be declared as
+linking to the same page in other versions?
View translation status
-----------------------
This should not be too hard using gettext tools. If this is
implemented as a
-[[HTML::Template|http://search.cpan.org/search?mode=dist&query=HTML%3A%3ATemplate]]
+[HTML::Template](http://search.cpan.org/search?mode=dist&query=HTML%3A%3ATemplate)
loop, a page using it should depend on any "master" and "slave" pages
whose status is being displayed.
-Decide which pages are translatable
------------------------------------
-
-The subset of "master" pages subject to translation must be
-configurable:
-
-- a `[[!translatable ]]` directive, when put on a page, makes it
- translatable
-- to set at once a bunch of pages as being translatable, use this
- [[ikiwiki/directive]] with the `match=PageSpec` argument.
+If it's not too heavy to compute, this status data may be made
+available in the `OTHERLANGUAGES` template loop; else, a dedicated
+loop would be needed.
Automatic PO files update
-------------------------
-Committing changes to a "master" page must:
+Committing changes to a "master" page:
+
+1. updates the POT file and the PO files for the supported languages;
+ this is done in the `needsbuild` hook; **FIXME**: the updated PO
+ files must then be put under version control
-1. update the POT file and the PO files for the supported languages,
- before putting them under version control
-2. trigger a refresh of the corresponding HTML slave pages
+2. triggers a refresh of the corresponding HTML slave pages: this is
+ achieved by making any "slave" page dependent on the corresponding
+ "master" page, in the `needsbuild` hook.
-The former is to be done at a time when:
+**FIXME** Also, when the plugin has just been enabled, or when a page
+has just been declared as being translatable:
-- we know which "master" page was modified, and thus, which POT/PO
- files have to be updated: the `needsbuild` hook is the first one to
- run that provides us with the necessary information
-- we can modify the list of pages needing a refresh; this is
- `needsbuild` hook's job
+- all the needed POT and PO files have to be created
+- the PO files must be checked into version control
-The latter can be implemented by making any "slave" page depend on the
-corresponding "master" page. The `add_depends` function can achieve
-this, if used in a **FIXME** hook.
+**FIXME** `refreshpofiles` uses `system()`, whose args have to be
+checked more thoroughly to prevent any security issue (command
+injection, etc.).
UI consistency: rename "Edit" button on slave pages
---------------------------------------------------
displayed on "slave" pages must therefore be renamed *Improve
translation* .
-Pages selection depending on language
--------------------------------------
-
-To improve user navigation in a multi-lingual wiki, site developers
-must be enabled to write:
-
- \[[!map pages="dev/* and lang(LL)" feeds="no"]]
-
- \[[!map pages="dev/* and currentlang()" feeds="no"]]
-
Translation quality assurance
-----------------------------