137 lines
4.4 KiB
Elixir
137 lines
4.4 KiB
Elixir
defmodule RDF do
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@moduledoc """
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The top-level module of RDF.ex.
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RDF.ex consists of:
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- modules for the nodes of an RDF graph
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- `RDF.IRI`
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- `RDF.BlankNode`
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- `RDF.Literal`
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- a facility for the mapping of URIs of a vocabulary to Elixir modules and
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functions: `RDF.Vocabulary.Namespace`
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- modules for the construction of statements
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- `RDF.Triple`
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- `RDF.Quad`
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- `RDF.Statement`
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- modules for collections of statements
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- `RDF.Description`
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- `RDF.Graph`
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- `RDF.Dataset`
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- `RDF.Data`
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- `RDF.List`
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- the foundations for the definition of RDF serialization formats
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- `RDF.Serialization`
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- `RDF.Serialization.Decoder`
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- `RDF.Serialization.Encoder`
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- and the implementation of various RDF serialization formats
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- `RDF.NTriples`
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- `RDF.NQuads`
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- `RDF.Turtle`
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This top-level module provides shortcut functions for the construction of the
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basic elements and structures of RDF and some general helper functions.
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For a general introduction you may refer to the [README](readme.html).
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"""
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alias RDF.{IRI, Namespace, Literal, BlankNode, Triple, Quad,
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Description, Graph, Dataset}
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@doc """
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Checks if the given value is a RDF resource.
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## Examples
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iex> RDF.resource?(RDF.iri("http://example.com/resource"))
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true
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iex> RDF.resource?(EX.resource)
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true
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iex> RDF.resource?(RDF.bnode)
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true
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iex> RDF.resource?(42)
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false
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"""
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def resource?(value)
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def resource?(%IRI{}), do: true
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def resource?(%BlankNode{}), do: true
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def resource?(atom) when is_atom(atom), do: resource?(Namespace.resolve_term(atom))
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def resource?(_), do: false
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defdelegate uri?(value), to: IRI, as: :valid?
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defdelegate iri?(value), to: IRI, as: :valid?
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defdelegate uri(value), to: IRI, as: :new
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defdelegate iri(value), to: IRI, as: :new
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defdelegate uri!(value), to: IRI, as: :new!
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defdelegate iri!(value), to: IRI, as: :new!
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@doc """
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Checks if the given value is a blank node.
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## Examples
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iex> RDF.bnode?(RDF.bnode)
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true
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iex> RDF.bnode?(RDF.iri("http://example.com/resource"))
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false
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iex> RDF.bnode?(42)
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false
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"""
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def bnode?(%BlankNode{}), do: true
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def bnode?(_), do: false
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defdelegate bnode(), to: BlankNode, as: :new
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defdelegate bnode(id), to: BlankNode, as: :new
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defdelegate literal(value), to: Literal, as: :new
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defdelegate literal(value, opts), to: Literal, as: :new
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defdelegate triple(s, p, o), to: Triple, as: :new
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defdelegate triple(tuple), to: Triple, as: :new
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defdelegate quad(s, p, o, g), to: Quad, as: :new
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defdelegate quad(tuple), to: Quad, as: :new
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defdelegate description(arg), to: Description, as: :new
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defdelegate description(arg1, arg2), to: Description, as: :new
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defdelegate description(arg1, arg2, arg3), to: Description, as: :new
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defdelegate graph(), to: Graph, as: :new
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defdelegate graph(arg), to: Graph, as: :new
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defdelegate graph(arg1, arg2), to: Graph, as: :new
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defdelegate graph(arg1, arg2, arg3), to: Graph, as: :new
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defdelegate graph(arg1, arg2, arg3, arg4), to: Graph, as: :new
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defdelegate dataset(), to: Dataset, as: :new
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defdelegate dataset(arg), to: Dataset, as: :new
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defdelegate dataset(arg1, arg2), to: Dataset, as: :new
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defdelegate list?(resource, graph), to: RDF.List, as: :node?
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defdelegate list?(description), to: RDF.List, as: :node?
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def list(native_list),
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do: RDF.List.from(native_list)
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def list(head, %Graph{} = graph),
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do: RDF.List.new(head, graph)
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def list(native_list, opts),
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do: RDF.List.from(native_list, opts)
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for term <- ~w[type subject predicate object first rest value]a do
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defdelegate unquote(term)(), to: RDF.NS.RDF
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defdelegate unquote(term)(s, o), to: RDF.NS.RDF
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defdelegate unquote(term)(s, o1, o2), to: RDF.NS.RDF
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defdelegate unquote(term)(s, o1, o2, o3), to: RDF.NS.RDF
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defdelegate unquote(term)(s, o1, o2, o3, o4), to: RDF.NS.RDF
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defdelegate unquote(term)(s, o1, o2, o3, o4, o5), to: RDF.NS.RDF
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end
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defdelegate langString(), to: RDF.NS.RDF
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defdelegate unquote(nil)(), to: RDF.NS.RDF
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defdelegate __base_iri__(), to: RDF.NS.RDF
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end
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