This memo defines URI fragment identifiers for text/plain MIME entities. These fragment identifiers make it possible to refer to parts of a text/plain MIME entity, either identified by character position or range, or by line position or range. Fragment identifiers may also contain information for integrity checks to make them more robust.
The XPointer element() scheme is intended to be used with the XPointer Framework [XPtrFrame] to allow basic addressing of XML elements.
This specification defines the XML Pointer Language (XPointer) Framework, an extensible system for XML addressing that underlies additional XPointer scheme specifications. The framework is intended to be used as a basis for fragment identifiers for any resource whose Internet media type is one of text/xml, application/xml, text/xml-external-parsed-entity, or application/xml-external-parsed-entity. Other XML-based media types are also encouraged to use this framework in defining their own fragment identifier languages.
The XPointer xmlns() scheme is intended to be used with the XPointer Framework [XPtrFrame] to allow correct interpretation of namespace prefixes in pointers, for instance, namespace-qualified scheme names and namespace-qualified element or attribute names appearing within scheme data.