Add new port devel/streamhtmlparser.
lookahead. Its purpose is to scan an html document and provide context
information at any point within the input stream. An example of a user
of this scanner would be an auto escaping templating system, which would
require html context information at very specific points within the html
stream. The implementation is based on a simplified state machine of
Submitted by: HU Dong <email@example.com>