@spec choose_charset([String.t()], String.t()) :: String.t() | nil

HTTP Charset negociation, get the charset to use from :

• acc_char_hdr, the HTTP header Accept-Charset
• charsets, the list of supported charsets

@spec choose_encoding([String.t()], String.t()) :: String.t() | nil

HTTP Encoding negociation, get the encoding to use from :

• acc_enc_hdr, the HTTP header Accept-Encoding
• encs, the list of supported encoding

@spec choose_media_type([norm_content_type()], String.t()) ::
  norm_content_type() | nil

HTTP Content negociation, get the content type to send from :

• accept_header, the HTTP header Accept
• ct_provided, the list of provided content types

@spec convert_request_date(String.t()) ::
  {{year :: integer(), month :: integer(), day :: integer()},
   {h :: integer(), min :: integer(), sec :: integer()}}
  | :bad_date

Convert rfc1123 or rfc850 to :calendar dates

@spec format_mtype(norm_content_type()) :: String.t()

Format a norm_content_type into an HTTP content type header

@spec fuzzy_mt_match(norm_content_type(), norm_content_type()) :: boolean()

Match normalized media types accepting a partial match (wildcard or incomplete params)

@spec http_label(code :: integer()) :: String.t()

Get HTTP status label from HTTP code

@spec normalize_mtype(
  {type :: String.t(), params :: map()}
  | (type :: String.t())
  | norm_content_type()
) :: norm_content_type()

Convert any content type representation (see spec) into a norm_content_type

@spec quoted_string(String.t()) :: String.t()

Remove quotes from HTTP quoted string

@spec rfc1123_date(
  {{year :: integer(), month :: integer(), day :: integer()},
   {h :: integer(), min :: integer(), sec :: integer()}}
) :: String.t()

Convert a calendar date to a rfc1123 date string

@spec split_quoted_strings(String.t()) :: [String.t()]

Get the string list from a comma separated list of HTTP quoted strings