def select_best_encoding(available_encodings, accept_encoding)
expanded_accept_encoding =
accept_encoding.map { |m, q|
if m == "*"
(available_encodings - accept_encoding.map { |m2, _| m2 }).map { |m2| [m2, q] }
else
[[m, q]]
end
}.inject([]) { |mem, list|
mem + list
}
encoding_candidates = expanded_accept_encoding.sort_by { |_, q| -q }.map { |m, _| m }
unless encoding_candidates.include?("identity")
encoding_candidates.push("identity")
end
expanded_accept_encoding.find_all { |m, q|
q == 0.0
}.each { |m, _|
encoding_candidates.delete(m)
}
return (encoding_candidates & available_encodings)[0]
end