-- -----------------------------------------------------------------------------
-- -- Canonic header field capitalization
-- -- LuaSocket toolkit.
-- -- Author: Diego Nehab
-- -----------------------------------------------------------------------------
-- local socket = require("socket")
-- socket.headers = {}
-- local _M = socket.headers

-- _M.canonic = {
--     ["accept"] = "Accept",
--     ["accept-charset"] = "Accept-Charset",
--     ["accept-encoding"] = "Accept-Encoding",
--     ["accept-language"] = "Accept-Language",
--     ["accept-ranges"] = "Accept-Ranges",
--     ["action"] = "Action",
--     ["alternate-recipient"] = "Alternate-Recipient",
--     ["age"] = "Age",
--     ["allow"] = "Allow",
--     ["arrival-date"] = "Arrival-Date",
--     ["authorization"] = "Authorization",
--     ["bcc"] = "Bcc",
--     ["cache-control"] = "Cache-Control",
--     ["cc"] = "Cc",
--     ["comments"] = "Comments",
--     ["connection"] = "Connection",
--     ["content-description"] = "Content-Description",
--     ["content-disposition"] = "Content-Disposition",
--     ["content-encoding"] = "Content-Encoding",
--     ["content-id"] = "Content-ID",
--     ["content-language"] = "Content-Language",
--     ["content-length"] = "Content-Length",
--     ["content-location"] = "Content-Location",
--     ["content-md5"] = "Content-MD5",
--     ["content-range"] = "Content-Range",
--     ["content-transfer-encoding"] = "Content-Transfer-Encoding",
--     ["content-type"] = "Content-Type",
--     ["cookie"] = "Cookie",
--     ["date"] = "Date",
--     ["diagnostic-code"] = "Diagnostic-Code",
--     ["dsn-gateway"] = "DSN-Gateway",
--     ["etag"] = "ETag",
--     ["expect"] = "Expect",
--     ["expires"] = "Expires",
--     ["final-log-id"] = "Final-Log-ID",
--     ["final-recipient"] = "Final-Recipient",
--     ["from"] = "From",
--     ["host"] = "Host",
--     ["if-match"] = "If-Match",
--     ["if-modified-since"] = "If-Modified-Since",
--     ["if-none-match"] = "If-None-Match",
--     ["if-range"] = "If-Range",
--     ["if-unmodified-since"] = "If-Unmodified-Since",
--     ["in-reply-to"] = "In-Reply-To",
--     ["keywords"] = "Keywords",
--     ["last-attempt-date"] = "Last-Attempt-Date",
--     ["last-modified"] = "Last-Modified",
--     ["location"] = "Location",
--     ["max-forwards"] = "Max-Forwards",
--     ["message-id"] = "Message-ID",
--     ["mime-version"] = "MIME-Version",
--     ["original-envelope-id"] = "Original-Envelope-ID",
--     ["original-recipient"] = "Original-Recipient",
--     ["pragma"] = "Pragma",
--     ["proxy-authenticate"] = "Proxy-Authenticate",
--     ["proxy-authorization"] = "Proxy-Authorization",
--     ["range"] = "Range",
--     ["received"] = "Received",
--     ["received-from-mta"] = "Received-From-MTA",
--     ["references"] = "References",
--     ["referer"] = "Referer",
--     ["remote-mta"] = "Remote-MTA",
--     ["reply-to"] = "Reply-To",
--     ["reporting-mta"] = "Reporting-MTA",
--     ["resent-bcc"] = "Resent-Bcc",
--     ["resent-cc"] = "Resent-Cc",
--     ["resent-date"] = "Resent-Date",
--     ["resent-from"] = "Resent-From",
--     ["resent-message-id"] = "Resent-Message-ID",
--     ["resent-reply-to"] = "Resent-Reply-To",
--     ["resent-sender"] = "Resent-Sender",
--     ["resent-to"] = "Resent-To",
--     ["retry-after"] = "Retry-After",
--     ["return-path"] = "Return-Path",
--     ["sender"] = "Sender",
--     ["server"] = "Server",
--     ["smtp-remote-recipient"] = "SMTP-Remote-Recipient",
--     ["status"] = "Status",
--     ["subject"] = "Subject",
--     ["te"] = "TE",
--     ["to"] = "To",
--     ["trailer"] = "Trailer",
--     ["transfer-encoding"] = "Transfer-Encoding",
--     ["upgrade"] = "Upgrade",
--     ["user-agent"] = "User-Agent",
--     ["vary"] = "Vary",
--     ["via"] = "Via",
--     ["warning"] = "Warning",
--     ["will-retry-until"] = "Will-Retry-Until",
--     ["www-authenticate"] = "WWW-Authenticate",
--     ["x-mailer"] = "X-Mailer",
-- }

-- return _M