Hi,
The Parsing section speaks of a "marked section open state"[1]. In SGML a
marked sections have the following form:
<![ X [ ... ]]>
...where X could be CDATA, RCDATA, IGNORE, INCLUDE or TEMP.
HTML5 doesn't have this construct, it only has comments and doctypes that
start with "<!", which are called "markup declarations" in SGML. So to avoid
any confusion I suggest renaming "marked section open state" to "markup
declaration open state".
[1] http://whatwg.org/specs/web-apps/current-work/#marked
Regards,
Simon Pieters