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hl7v2
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Pure Elixir HL7 v2.x toolkit — schema-driven parsing, typed segments, message builder, MLLP transport
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lib/hl7v2/type/gts.ex
defmodule HL7v2.Type.GTS do
@moduledoc """
General Timing Specification (GTS) -- HL7v2 primitive data type.
An expression representing a general timing specification, following the
HL7 timing syntax. Treated as an opaque string -- the library does not
parse the timing expression itself.
"""
@behaviour HL7v2.Type
@type t :: binary() | nil
@doc """
Parses a GTS value. Returns the raw string.
## Examples
iex> HL7v2.Type.GTS.parse("200602011430-0500")
"200602011430-0500"
iex> HL7v2.Type.GTS.parse("")
nil
iex> HL7v2.Type.GTS.parse(nil)
nil
"""
@spec parse(binary() | nil) :: t()
def parse(nil), do: nil
def parse(""), do: nil
def parse(value) when is_binary(value), do: value
@doc """
Encodes a GTS value back to a string.
## Examples
iex> HL7v2.Type.GTS.encode("200602011430-0500")
"200602011430-0500"
iex> HL7v2.Type.GTS.encode(nil)
""
"""
@spec encode(t()) :: binary()
def encode(nil), do: ""
def encode(value) when is_binary(value), do: value
end