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core: Literal.new takes datatype and language in a map

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This commit is contained in:
Marcel Otto 2017-04-02 23:15:07 +02:00
parent ccc8b94ade
commit 425546349d
1 changed files with 22 additions and 18 deletions
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40
lib/rdf/literal.ex
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@ -115,40 +115,44 @@ defmodule RDF.Literal do
raise RDF.InvalidLiteralError, "#{inspect value} not convertible to a RDF.Literal"
end
def new(value, language: language) when is_binary(value) do
def new(value, opts) when is_list(opts),
do: new(value, Map.new(opts))
def new(value, %{language: language}) when not is_nil(language) and is_binary(value) do
%RDF.Literal{value: value, datatype: RDF.langString, language: language}
end
def new(value, datatype: datatype) when is_binary(value) do
datatype_uri = RDF.uri(datatype)
def new(value, %{datatype: %URI{} = datatype}) when is_binary(value) do
cond do
datatype_uri == XSD.string -> %RDF.Literal{value: value, datatype: datatype_uri}
datatype_uri == XSD.integer -> %RDF.Literal{value: String.to_integer(value), datatype: datatype_uri}
# TODO: datatype_uri == XSD.byte -> nil # %RDF.Literal{value: String.to_integer(value), datatype: datatype_uri}
# TODO: datatype_uri == RDF.uri(RDFS.XMLLiteral) -> nil # %RDF.Literal{value: String.to_integer(value), datatype: datatype_uri}
datatype == XSD.string -> %RDF.Literal{value: value, datatype: datatype}
datatype == XSD.integer -> %RDF.Literal{value: String.to_integer(value), datatype: datatype}
# TODO: datatype == XSD.byte -> nil # %RDF.Literal{value: String.to_integer(value), datatype: datatype}
# TODO: datatype == RDF.uri(RDFS.XMLLiteral) -> nil # %RDF.Literal{value: String.to_integer(value), datatype: datatype}
# TODO: Should we support more values, like "1" etc.?
# TODO: Should we exclude any non-useful value?
datatype_uri == XSD.boolean -> %RDF.Literal{value: String.downcase(value) == "true", datatype: datatype_uri}
true -> %RDF.Literal{value: value, datatype: datatype_uri}
datatype == XSD.boolean -> %RDF.Literal{value: String.downcase(value) == "true", datatype: datatype}
true -> %RDF.Literal{value: value, datatype: datatype}
end
end
def new(value, datatype: datatype) when is_integer(value) do
datatype_uri = RDF.uri(datatype)
def new(value, %{datatype: %URI{} = datatype}) when is_integer(value) do
cond do
datatype_uri == XSD.string -> %RDF.Literal{value: to_string(value), datatype: datatype_uri}
datatype_uri == XSD.integer -> %RDF.Literal{value: value, datatype: datatype_uri}
datatype == XSD.string -> %RDF.Literal{value: to_string(value), datatype: datatype}
datatype == XSD.integer -> %RDF.Literal{value: value, datatype: datatype}
end
end
def new(value, datatype: datatype) when is_boolean(value) do
datatype_uri = RDF.uri(datatype)
def new(value, %{datatype: %URI{} = datatype}) when is_boolean(value) do
cond do
datatype_uri == XSD.boolean -> %RDF.Literal{value: value, datatype: datatype_uri}
datatype == XSD.boolean -> %RDF.Literal{value: value, datatype: datatype}
# TODO: Should we exclude any non-useful value?
datatype_uri == XSD.string -> %RDF.Literal{value: to_string(value), datatype: datatype_uri}
datatype_uri == XSD.integer -> %RDF.Literal{value: (if value, do: 1, else: 0), datatype: datatype_uri}
datatype == XSD.string -> %RDF.Literal{value: to_string(value), datatype: datatype}
datatype == XSD.integer -> %RDF.Literal{value: (if value, do: 1, else: 0), datatype: datatype}
end
end
def new(value, %{datatype: datatype}) do
new(value, datatype: RDF.uri(datatype))
end
end