109 lines
2.9 KiB
Elixir
109 lines
2.9 KiB
Elixir
defmodule RDF.InspectHelper do
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@moduledoc false
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import Inspect.Algebra
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def value_doc(%URI{} = uri, _opts), do: "~I<#{uri}>"
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def value_doc(value, opts), do: to_doc(value, opts)
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def objects_doc(objects, opts) do
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objects
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|> Enum.map(fn {object, _} -> value_doc(object, opts) end)
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|> fold_doc(fn(object, acc) -> line(object, acc) end)
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end
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def predications_doc(predications, opts) do
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predications
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|> Enum.map(fn {predicate, objects} ->
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value_doc(predicate, opts)
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|> line(objects_doc(objects, opts))
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|> nest(4)
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end)
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|> fold_doc(fn(predication, acc) ->
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line(predication, acc)
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end)
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end
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def descriptions_doc(descriptions, opts) do
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descriptions
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|> Enum.map(fn {subject, description} ->
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value_doc(subject, opts)
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|> line(predications_doc(description.predications, opts))
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|> nest(4)
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end)
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|> fold_doc(fn(predication, acc) ->
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line(predication, acc)
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end)
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end
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end
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defimpl Inspect, for: RDF.BlankNode do
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def inspect(%RDF.BlankNode{id: id}, _opts) do
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"~B<#{id}>"
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end
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end
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defimpl Inspect, for: RDF.Literal do
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def inspect(%RDF.Literal{value: value, language: language}, _opts) when not is_nil(language) do
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~s[~L"#{value}"#{language}]
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end
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def inspect(%RDF.Literal{value: value, uncanonical_lexical: lexical, datatype: datatype}, _opts)
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when not is_nil(lexical) do
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"%RDF.Literal{value: #{inspect value}, lexical: #{inspect lexical}, datatype: ~I<#{datatype}>}"
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end
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def inspect(%RDF.Literal{value: value, datatype: datatype}, _opts) do
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if datatype == RDF.Datatype.NS.XSD.string do
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~s[~L"#{value}"]
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else
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"%RDF.Literal{value: #{inspect value}, datatype: ~I<#{datatype}>}"
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end
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end
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end
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defimpl Inspect, for: RDF.Description do
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import Inspect.Algebra
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import RDF.InspectHelper
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def inspect(%RDF.Description{subject: subject, predications: predications}, opts) do
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doc =
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space("subject:", value_doc(subject, opts))
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|> line(predications_doc(predications, opts))
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|> nest(4)
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surround("#RDF.Description{", doc, "}")
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end
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end
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defimpl Inspect, for: RDF.Graph do
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import Inspect.Algebra
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import RDF.InspectHelper
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def inspect(%RDF.Graph{name: name, descriptions: descriptions}, opts) do
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doc =
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space("name:", value_doc(name, opts))
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|> line(descriptions_doc(descriptions, opts))
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|> nest(4)
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surround("#RDF.Graph{", doc, "}")
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end
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end
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defimpl Inspect, for: RDF.Dataset do
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import Inspect.Algebra
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import RDF.InspectHelper
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def inspect(%RDF.Dataset{name: name} = dataset, opts) do
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doc =
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space("name:", value_doc(name, opts))
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|> line(graphs_doc(RDF.Dataset.graphs(dataset), opts))
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|> nest(4)
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surround("#RDF.Dataset{", doc, "}")
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end
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defp graphs_doc(graphs, opts) do
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graphs
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|> Enum.map(fn graph -> to_doc(graph, opts) end)
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|> fold_doc(fn(graph, acc) -> line(graph, acc) end)
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end
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end
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