(Note: The change caused by this menu option is only 
visible by opening another hypertext file or by using 
a jump link to another file.)

The "Disable HTML" menu option sets a flag
which is used by the OnAssertGREPMatchFound 
method of the TRegularExpressionParser component. 
This method is used to override processing of 
matches against the currently active regular 
expression. Options include surpressing all matches 
(as is done here) or allowing some matches, or 
changing the text matched (although this is better 
done in the methods of the THyperTextParser 
component.) 

(Note: Assert methods normally are used to abort
all further processing of an action, while the
Handle Methods modify the processing. These
two methods can each be overridden in code by
direct assignment for Assert types and virtual
overriding for Handle types.)

