RDF.ex

v0.4.0

RDF.ex v0.4.0 RDF.Literal View Source

RDF literals are leaf nodes of a RDF graph containing raw data, like strings and numbers.

Link to this section Summary

Types

t()

Functions

canonical(literal)

Returns the given literal in its canonical lexical representation

canonical?(arg1)

Returns if the given literal is in its canonical lexical representation

has_datatype?(literal)

Returns if a literal is a datatyped literal

has_language?(arg1)

Returns if a literal is a language-tagged literal

lexical(literal)

Returns the given literal with the canonical lexical representation according to its datatype

new(value)

Creates a new RDF.Literal of the given value and tries to infer an appropriate XSD datatype

new(value, opts)
plain?(arg1)

Returns if a literal is a plain literal

simple?(arg1)

Returns if a literal is a simple literal

typed?(literal)
valid?(literal)

Returns if the value of the given literal is a valid according to its datatype

Link to this section Types

Link to this section Functions

Link to this function canonical(literal) View Source

Returns the given literal in its canonical lexical representation.

Link to this function canonical?(arg1) View Source

Returns if the given literal is in its canonical lexical representation.

Link to this function has_datatype?(literal) View Source

Returns if a literal is a datatyped literal.

For historical reasons, this excludes xsd:string and rdf:langString.

see http://www.w3.org/TR/rdf-concepts/#dfn-typed-literal

Link to this function has_language?(arg1) View Source

Returns if a literal is a language-tagged literal.

see http://www.w3.org/TR/rdf-concepts/#dfn-plain-literal

Link to this function lexical(literal) View Source

Returns the given literal with the canonical lexical representation according to its datatype.

Link to this function new(value) View Source

Creates a new RDF.Literal of the given value and tries to infer an appropriate XSD datatype.

Note: The RDF.literal function is a shortcut to this function.

The following mapping of Elixir types to XSD datatypes is applied:

Elixir datatypeXSD datatype
stringxsd:string
booleanxsd:boolean
integerxsd:integer
floatxsd:double
Timexsd:time
Datexsd:date
DateTimexsd:dateTime
NaiveDateTimexsd:dateTime

Examples 

iex> RDF.Literal.new(42)
%RDF.Literal{value: 42, datatype: XSD.integer}
Link to this function plain?(arg1) View Source

Returns if a literal is a plain literal.

A plain literal may have a language, but may not have a datatype. For all practical purposes, this includes xsd:string literals too.

see http://www.w3.org/TR/rdf-concepts/#dfn-plain-literal

Link to this function simple?(arg1) View Source

Returns if a literal is a simple literal.

A simple literal has no datatype or language.

see http://www.w3.org/TR/sparql11-query/#simple_literal

Link to this function valid?(literal) View Source

Returns if the value of the given literal is a valid according to its datatype.