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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/rfr.ex
defmodule HL7v2.Type.RFR do
@moduledoc """
Reference Range (RFR) -- HL7v2 composite data type.
Specifies a reference range for an observation with optional demographic qualifiers.
7 components:
1. Numeric Range (NR) -- sub-components (low & high)
2. Administrative Sex (IS) -- Table 0001
3. Age Range (NR) -- sub-components
4. Gestational Age Range (NR) -- sub-components
5. Species (ST)
6. Race/Subspecies (ST)
7. Conditions (TX)
"""
@behaviour HL7v2.Type
alias HL7v2.Type
alias HL7v2.Type.NR
defstruct [
:numeric_range,
:administrative_sex,
:age_range,
:gestational_age_range,
:species,
:race_subspecies,
:conditions
]
@type t :: %__MODULE__{
numeric_range: NR.t() | nil,
administrative_sex: binary() | nil,
age_range: NR.t() | nil,
gestational_age_range: NR.t() | nil,
species: binary() | nil,
race_subspecies: binary() | nil,
conditions: binary() | nil
}
@doc """
Parses an RFR from a list of components.
## Examples
iex> HL7v2.Type.RFR.parse(["3.5&5.5", "M"])
%HL7v2.Type.RFR{
numeric_range: %HL7v2.Type.NR{
low: %HL7v2.Type.NM{value: "3.5", original: "3.5"},
high: %HL7v2.Type.NM{value: "5.5", original: "5.5"}
},
administrative_sex: "M"
}
iex> HL7v2.Type.RFR.parse([])
%HL7v2.Type.RFR{}
"""
@spec parse(list()) :: t()
def parse(components) when is_list(components) do
%__MODULE__{
numeric_range: Type.parse_sub(NR, Type.get_component(components, 0)),
administrative_sex: Type.get_component(components, 1),
age_range: Type.parse_sub(NR, Type.get_component(components, 2)),
gestational_age_range: Type.parse_sub(NR, Type.get_component(components, 3)),
species: Type.get_component(components, 4),
race_subspecies: Type.get_component(components, 5),
conditions: Type.get_component(components, 6)
}
end
@doc """
Encodes an RFR to a list of component strings.
## Examples
iex> HL7v2.Type.RFR.encode(%HL7v2.Type.RFR{numeric_range: %HL7v2.Type.NR{low: %HL7v2.Type.NM{value: "3.5", original: "3.5"}, high: %HL7v2.Type.NM{value: "5.5", original: "5.5"}}, administrative_sex: "M"})
["3.5&5.5", "M"]
iex> HL7v2.Type.RFR.encode(nil)
[]
"""
@spec encode(t() | nil) :: list()
def encode(nil), do: []
def encode(%__MODULE__{} = rfr) do
[
Type.encode_sub(NR, rfr.numeric_range),
rfr.administrative_sex || "",
Type.encode_sub(NR, rfr.age_range),
Type.encode_sub(NR, rfr.gestational_age_range),
rfr.species || "",
rfr.race_subspecies || "",
rfr.conditions || ""
]
|> Type.trim_trailing()
end
end