Simple highlighting treating keywords, comments, strings and type expressions specially.
Some RFCs and Internet Drafts are broken in such a way that there is no linefeed character separating the pages. These documents are really pain to print because you have to know the exact page height. The `rfc' highlighting state fixes these broken documents by removing all unnecessary blank lines from the page breaks and by separating the pages with a formfeed character. This style also highlights the MUST, MUST NOT, REQUIRED SHALL, SHALL NOT, SHOULD, SHOULD NOT, RECOMMENDED, MAY, and OPTIONAL keywords, described by the RFC 2119.
Highlights keywords, comments and special vhdl constructs. Please send comments or suggestions.