Because Tuleap is used by a large community of users, it is internationalized. For now, available languages are:
Thus, there shouldn’t be any untranslated words or sentences of natural language in source code. This applies to any strings displayed to end users (web, emails). Logs or system messages are in english.
Internationalization is available in two different ways. The legacy one, based on .tab files, and the new one, based on gettext.
We use the domain feature provided by gettext in order to have i18n in plugins.
echo dgettext('tuleap-proftpd', 'File');
xgettext extracts strings without being able to interpret PHP constants or variables. Don’t try
to be too smart and don’t put the domain
tuleap-proftpd in a variable or a constant, we need to repeat ourselves.
You can use localized strings from core or other plugins (beware of dependencies!) in a given plugin.
echo sprintf( dngettext( 'tuleap-tracker', "The field '%s' doesn't exist", "The fields '%s' don't exist", $nb_nonexistent_fields ), implode("', '", $nonexistent_fields) ); // The field 'summary' doesn't exist // or // The fields 'summary', 'details' don't exist
Pluralization is only available for plugins as of today.
- Add a new localizable string.
make generate-po. This will update corresponding .pot files that are templates for your localization files.
- Edit localization files in
site-content/fr_FR/LC_MESSAGES/tuleap-xxxx.powith your favorite editor (poedit is fine).
- Once you have localized your sentences, run
make generate-mo(some editors, like poedit, generate .mo files for you). You may need to restart your webserver.
- Refresh your browser, and voilà!
If you are introducing gettext in a plugin, you must
touch plugins/<name>/site-content/tuleap-<name>.pot before calling
Furthermore you must declare your domain in the constructor of your plugin. For example, for
On our dev setup (tuleap-aio-dev) you must ensure that “fr_FR” locale is installed (
If it is not the case, run
localedef -i fr_FR -f UTF-8 fr_FR.UTF-8.
This system is based on a key/value pair. PHP code references a key (actually a primary and a secondary keys) which is replaced by the full sentence, according to the user preferences.
Language files are available in the
site-content/ directory, for example
The same file exists for the french version:
These language files follow a defined syntax:
key1 [tab] key2 [tab] translated string
and sentences are separated by a carriage return. Keys are split in different files for convenience, but are “compiled” in a big unique file at execution.
include_exit error An error occured
The class that manages i18n is BaseLanguage (
src/common/language/BaseLanguage.class.php). It is initialized by
pre.php, and language is set according to the user preferences. This php code will return the matching string
defined in language files: