The XPointer content-type() Scheme
This document specifies a content-type() scheme for use in XPointer- based fragment identifiers. This scheme, like other XPointer Framework [12] schemes, is designed primarily for use with the XML Media Types defined in RFC 3023 [5], to identify locations within a given XML representation of a resource, though it may potentially be used to mix schemes for XML and non-XML representations. The content-type() scheme notifies an XPointer processor whether the creator of the XPointer intended for a particular pointer part to apply to a resource representation which uses a particular MIME content type identifier.