From: khaines@...
Date: 2006-10-20T06:31:42+09:00
Subject: challenge: correctly handling Accept-Language HTTP header

I've been pondering the best way of writing a piece of code that will, 
when given a list of language options, select the one that best fullfills 
what is being requested in an Accept-Language header.

i.e.

If one has a list of en, en-gb and es, and one gets an Accept-Language 
header like this:

es-mx,es;q=0.8,en-us;q=0.5,en;q=0.3

the code would return the 'es' as the best matching language option.

Is there some already written Ruby code hiding in a project somewhere to 
do this?  Is there some piece of C library somewhere that I could just 
write an extension for to do it?  Can someone offer up a fast Ruby 
implementation to handle Accept-Language decisions?

I've hacked out an almost right approach, but I'm not happy with it.


Thanks,

Kirk Haines