From Koha Wiki
Koha is translated into a growing number of languages. As the community keeps improving Koha and is constantly adding new features, this is a never ending task for the translators and help is always welcome.
You can find out which languages Koha is translated to, looking at our Pootle translation server.
In order to help out with translating, the first thing you need to do is create an account on Pootle - the Koha translation server.
After that you can start to translate directly or make suggestions for changes, that will be moderated by other active translators.
There is also a special mailing list for translators where you introduce yourself and get into contact with other translators of your language: koha-translate
Adding a new language
If you want to start translating Koha into a language that is not in the list, please send a message about it to the mailing list, and the current translation manager will help you to get started.
Pootle is a great way to translate for teams of multiple translators and is therefore the preferred way for a lot of the translators. It's also quick and easy as you don't have to install anything and can work on translations wherever and whenever you want to.
If you get started with a new mostly untranslated language or prefer to work locally, you can download the .po files and use a special editor to work on them.
Important: If you are working with other translators, please let them know, as their changes will most likely get lost/overwritten, when you upload the files to Pootle again. You will also have to get the permission to upload files added to your account.
- Poedit (MIT License. GNU/Linux, Mac OS X, Windows)
- Lokalize (GPL. GNU/Linux, Windows)
- POEditor (Online)
Hint: Even if you translate using Pootle, the editors can be helpful in validating/testing your translations for errors. Sometimes translation mistakes can lead to a language not installing correctly, checking your translations regularly can help to prevent that.
Tips and tricks
Placeholders - %s
In the strings to translate, you will often see one or multiple %s. Those are placeholders for variables or template instructions. It's important that the number of %s in the translated text matches the English version exactly. But don't get too worried by them, you can always skip those at the beginning or mark your translation as 'needs work' or just make a suggestion.
If you are a bit more experienced, you can get a clue about the meaning of the placeholders by looking on the left side in Pootle, for example:
Expiration date: %s
Comments: %1$s: dateexpiry | $KohaDate
It means that the %s will be replaced by the value of the dateexpiry variable, which in this case is the date a patron account expires on.
Translating system preferences
The po file for translating system preferences is a bit different to the other files. Usually all strings in the po files will display for you in alphabetic order. As a system preference description can consist of several lines and strings, it would be hard to make a good translation that way. So in order to help translators, a comment with the preference name has been added to all strings, so they can be easily searched for by the pref name and all strings for a preference can be translated sequentially. The trick is, that the comment itself is not added to the translated string. For example:
acquisitions.pref#AcqCreateItem# Create an item when
The correct Spanish translation will be:
Crear un ítem cuando
Searching for phrases on Pootle
When searching for a phrase in Pootle the results can be a bit unexpected as it will bring up all entries that contain at least one word of the phrase. In order to make the search more exact, click into the search input field and check "Exact match" in the options shown.
Testing your translation
If you download the po files, you can test them for errors from the command line.
First make sure you didn't make any mistakes by validating the po files:
msgfmt -c <your_po_file>
msgfmt comes with the gettext package.
Note: Some po file editors as listed above also offer this functionality.
If you have a test environment for Koha, you can find out how to install/update po files yourself on Installation of additional languages for OPAC and INTRANET staff client.
- Installation of additional languages for OPAC and INTRANET staff client - Explains how to add, update and remove translations from a Koha installation
- Translation Server - More technical, including information for the translation managers