XML Schema
XmlSchema gem is a simple convertor utility for XML Schema (literal) datatypes to/from native Ruby objects.
Usage
$ require "xml_schema"
$ XmlSchema.datatype_of(true) # => #<URI::HTTP:0x00000000dcff78 URL:http://www.w3.org/2001/XMLSchema#boolean>
$ XmlSchema.datatype_of(Time.now) # => #<URI::HTTP:0x00000000dcff78 URL:http://www.w3.org/2001/XMLSchema#time>
$ XmlSchema.instantiate("55^^<http://www.w3.org/2001/XMLSchema#int>") # => 55
XmlSchema also provides means to access and work with frequently used namespaces:
$ NS::OWL.uri # => #<URI::HTTP:0x00000000dcff78 URL:http://www.w3.org/2002/07/owl>
$ NS::RDFS["hello"] # => #<URI::HTTP:0x00000000dcff78 URL:http://www.w3.org/2000/01/rdf-schema#hello>
That's pretty much all there is to it.
Extras
This gem introduces LocalizedString to handle localized string literals.
$ s = LocalizedString.new("hello", :en)
$ s.lang # => :en
$ XMLSchema.instantiate("hello@en") # => <LocalizedString: "hello">
When compared to a String object, language is ignored and only the string content is compared. When compared to another LocalizedString, languages are also compared.
You can also initialize a LocalizedString as follows:
$ "bonjour".with_lang(:fr) # => "bonjour"