Data.URN

URN parsing and rendering according to RFC2141.

For more info see: http://tools.ietf.org/html/rfc2141

Documentation

type NID = String

Namespace Identifier determines the syntactic interpretation of namespace-specific string.

type NSS = String

Namespace Specific String.

data URN

URN is persistent location-independent identifier for resources. For example:

 urn:uuid:f81d4fae-7dec-11d0-a765-00a0c91e6bf6

Constructors

URN

Fields

urnNamespace :: NID

a normalized namespace identifier;

 uuid

urnString :: NSS

the corresponding normalized and unescaped namespace-specific string.

 f81d4fae-7dec-11d0-a765-00a0c91e6bf6

Instances

Eq URN

Data URN

Ord URN

Read URN

Similar to parseURN.

Show URN

Similar to renderURN.

Typeable URN

IsString URN

Similar to parseURN.

renderURN :: URN -> String

Render URN to its text representation. Resulting string will have canonicalized NID and NSS part.

parseURN :: String -> Maybe URN

Parse URN from its text representation. Resulting URN will have canonicalized NID and NSS part.