2.2.3 [HTML] Section 6.12, Link types

C0006:

The specification states:

 White space characters are not permitted within link types.

All Document Modes (All Versions)

White space characters are preserved in %LinkTypes (such as rel and rev), within anchors, and within LINK elements.

C0007:

The specification states:

 Link types
  
 Next
 Refers to the next document in a linear sequence of documents. User agents may 
 choose to preload the "next" document, to reduce the perceived load time.

All Document Modes (All Versions)

A link type of Next is not interpreted as a reference to the next document in a linear sequence of documents. The preloading of a "next" document is not supported.

C0008:

The specification states:

 Link types
 Prev
 Refers to the previous document in an ordered series of documents. Some user agents 
 also support the synonym "Previous".

All Document Modes (All Versions)

A link type of Prev (or the synonym "Previous") is not interpreted as a reference to the previous document in a linear sequence of documents. The pre-loading of a "prev" document is not supported.

C0009:

The specification states:

 Link types
  
 Contents 
 Refers to a document serving as a table of contents. Some user agents also support 
 the synonym ToC (from "Table of Contents").

All Document Modes (All Versions)

A link type of Contents (or the synonym "ToC") is not interpreted as a reference to a document that serves as the table of contents for a linear sequence of documents.