Load babel using language synonyms

Question

How can synonyms be defined to allow loading babel with, e.g., \usepackage[nl-NL,en-GB]{babel} rather than \usepackage[dutch,english]{babel}?

@Lusr56 I imagine it would make integration with I18N applications a little more straightforward. — Sean Allred, Commented Jun 3, 2015 at 20:23
@SeanAllred What we need then may be a whole rewrite of babel, renaming all internal language codes to conform to RFC-5646. — jarnowicz, Commented Jun 3, 2015 at 21:37

jarnowicz · Accepted Answer · 2015-06-04 17:32:54Z

3

Just create a proxy file. For example, for Dutch the file would be nl-NL.ldf and its contents

\def\CurrentOption{dutch}
\input{dutch.ldf}

For en-GB.ldf it would be:

\def\CurrentOption{british}
\input{english.ldf}

But the language names, as set in \selectlanguage and the like, are still dutch and british, respectively.

jarnowicz

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answered Jun 3, 2015 at 19:52

Javier Bezos

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So, again, what's the gain?
– jarnowicz
Commented Jun 3, 2015 at 20:09
@Lusr56 I've edited the answer to show this case.
– Javier Bezos
Commented Jun 4, 2015 at 6:47
I removed my objection and edited the answer to make it complete and explicit.
– jarnowicz
Commented Jun 4, 2015 at 17:31

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