Add a non-listed language to Sitecore

Greetings

How to add Sitecore languages without patching LanguageDefinitions.config.

Sitecore supports any language that is registered in the operating system where it runs. See my previous post to see how to render a list of available languages on a server. When adding a new language in sitecore, the modal dialog loads defined languages (\App_Config\LanguageDefinitions.config) into the dropdown. When you select a language from the dropdown, the properties of that language definition are set to the appropriate inputs.

When you click next, sitecore will verify 2 things:
1- If the language already exists -gets language items from cache or by querying Database by language template ID.
2- The provided Language code combination (Language + “-“ + Region + “-“ CustomCode) is a valid culture (using System.Globalization.CultureInfo.GetCultureInfo).

As you can see, it is not required (I’m not debating best practice here) to define new languages inside LanguageDefinitions.config. As long as you enter a valid culture (existing in the operating system), sitecore will create the language item. If the culture is invalid, you will get an error like The name "xxxxxx" is not a valid or supported culture identifier.

Sometimes it’s confusing to figure out the language code combination that needs to be entered on this modal or in LanguageDefinitions.config. From the table on my previous post, the last 2 columns (Language and Country/region code) go in the inputs with the same names.
e.g. for Bosnian (Latin, Bosnia and Herzegovina), you’d enter bs-Latn in Language and BA in Country/region code.

As for the next step on the creation modal, I have not found a reliable source listing Codepage and Charset for all languages out there, so do your own research. If you do have one, please let me!.


Please let me know what you think and/or if you can spot any errors.
/eom

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