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I recommend reading https://tools.ietf.org/html/rfc5646 which seems to do what you need. cheers stuart -- ...let us be heard from red core to black sky On Thu, Jun 2, 2016 at 10:59 AM, Greg Lindahl <[log in to unmask]> wrote: > Some of the Internet Archive's library partners are asking us about > language metadata for regional languages that don't have standard > codes. Is there a standard way of dealing with this situation? > > Overall we use MARC codes https://www.loc.gov/marc/languages/ which > were last updated in 2007. LOC also maintains ISO639-2 > https://www.loc.gov/standards/iso639-2/php/code_list.php last updated > in 2014. > > The languages in question are regional languages which are currently > lumped together in both standards. With the recent rise in interest > and funding for regional languages, it's no surprise that some > catalogers want to split these languages out into separate codes. > > Thanks! > > -- greg >