@spec iso8601(binary(), keyword()) ::
  {:ok, [term()], rest, context, line, byte_offset}
  | {:error, reason, rest, context, line, byte_offset}
when line: {pos_integer(), byte_offset},
     byte_offset: non_neg_integer(),
     rest: binary(),
     reason: String.t(),
     context: map()

Parses the given binary as iso8601.

Returns {:ok, [token], rest, context, position, byte_offset} or {:error, reason, rest, context, line, byte_offset} where position describes the location of the iso8601 (start position) as {line, offset_to_start_of_line}.

To column where the error occurred can be inferred from byte_offset - offset_to_start_of_line.

Options

• :byte_offset - the byte offset for the whole binary, defaults to 0
• :line - the line and the byte offset into that line, defaults to {1, byte_offset}
• :context - the initial context value. It will be converted to a map

Tokenize an ISO 8601 or IXDTF string.

Arguments

• string is any ISO 8601 formatted string, optionally with an IXDTF suffix (such as [Europe/Paris][u-ca=hebrew]).

Returns

• {:ok, {tokens, extended_info}} where tokens is the list of ISO 8601 tokens produced by the parser and extended_info is either nil (when no IXDTF suffix was present) or a map with keys :calendar, :zone_id, :zone_offset and :tags.

• {:error, reason} when the string cannot be parsed or a critical IXDTF suffix is unrecognised.