Re: [PATCH 1/1] http: don't send C or POSIX in Accept-Language

> Justin Tobler <jltobler@gmail.com> writes:
> 
> > From my understanding, each language is expected to be defined in the
> > following form:
> >
> >   language[_territory][.codeset][@modifier]
> >
> > When we parse the list of languages we only care about the
> > `language[_territory]` part though.
> >
> > From looking at ISO 639 language codes, only codes with two or three
> > characters are valid. If we wanted to be a bit more strict, we could
> > check the length of the language code (everything before the first '_')
> > and filter out anything outside of those limits. This would naturally
> > filter out "C" and "POSIX" without having to mention them explicitly.
> 
> Filtering out anything that isn't 2-3 letters seems like a good
> heuristic to me.