Data.RDF.Namespace

Defines types and utility functions related to namespaces, and some predefined values for commonly used namespaces, such as rdf, xsd, dublin core, etc.

Namespace types and functions

data Namespace

Represents a namespace as either a prefix and uri, respectively, or just a uri.

Constructors

PrefixedNS Text Text

PlainNS Text

Instances

Eq Namespace

Show Namespace

mkPlainNS :: Text -> Namespace

Make a namespace for the given URI reference.

mkPrefixedNS :: Text -> Text -> Namespace

Make a namespace having the given prefix for the given URI reference, respectively.

mkPrefixedNS' :: String -> String -> Namespace

Make a namespace having the given prefix for the given URI reference, respectively, using strings which will be converted to bytestrings automatically.

newtype PrefixMapping

A mapping of a prefix to the URI for that prefix.

Constructors

PrefixMapping (Text, Text)

Instances

Eq PrefixMapping

Ord PrefixMapping

Show PrefixMapping

newtype PrefixMappings

An alias for a map from prefix to namespace URI.

Constructors

PrefixMappings (Map Text Text)

Instances

Eq PrefixMappings

Ord PrefixMappings

Show PrefixMappings

toPMList :: PrefixMappings -> [(Text, Text)]

View the prefix mappings as a list of key-value pairs. The PM in in the name is to reduce name clashes if used without qualifying.

mergePrefixMappings :: PrefixMappings -> PrefixMappings -> PrefixMappings

Perform a left-biased merge of the two sets of prefix mappings.

mkUri :: Namespace -> Text -> Text

Make a URI consisting of the given namespace and the given localname.

prefixOf :: Namespace -> Maybe Text

Determine the prefix of the given namespace, if it has one.

uriOf :: Namespace -> Text

Determine the URI of the given namespace.

Predefined namespace values

rdf :: Namespace

The RDF namespace.

rdfs :: Namespace

The RDF Schema namespace.

dc :: Namespace

The Dublic Core namespace.

dct :: Namespace

The Dublin Core terms namespace.

owl :: Namespace

The OWL namespace.

xsd :: Namespace

The XML Schema namespace.

skos :: Namespace

The SKOS namespace.

foaf :: Namespace

The friend of a friend namespace.

ex :: Namespace

Example namespace #1.

ex2 :: Namespace

Example namespace #2.

standard_ns_mappings :: PrefixMappings

The set of common predefined namespaces as a PrefixMappings value.

ns_mappings :: [Namespace] -> PrefixMappings

Takes a list of Namespaces and returns PrefixMappings.