CKEditor should provide a common way to registry/config the lang file

[damo]

CKEditor supports multiple languages. But all the language files are hardcode in lang.js. Consumer doesn't have a common way to registry/configure which we need to load or not. Especially when we want to add other language file, we have no way to add it except modifying the source code.

CKEditor should provide a config to let user add additional language file.

[fredck]

In effect config.lang should simply be respected and enforced, even if the language is not one of the "registered" ones.

In any case, even now, it's possible to workaround this issue by simply registering custom languages after loading the editor core code. Just add the following script line:

// Register the "xy" language code.
CKEDITOR.lang.languages.xy = 1;

[alfonsoml]

With the patch, if someone sets the language to a code that doesn't have a matching file (for example using navigator.language in my localized version of Firefox returns es-ES, but the language file in CKEditor is just "es" for all Spanish locales), the editor won't load, so it will be too risky to leave it this way.

Is it really worth the future support requests or adding extra code to verify that the file has been loaded?

[fredck]

Alfonso's comments make a lot of sense. Considering that it's possible to have the desired results by registering the new languages, as exemplified in my previous comment, we don't really need to make changes here.