> Question:
>
> We want to index some sites that have marked up certain sections of
> their content with HTML comments (unfortunately).

No, not easily.  I was going to suggest if you are good at Perl that you
use HTML::Parser and translate comments to a new tag upon indexing, but it
would probably be easier to modify src/parser.c to add comments as a
property as well as index.  But that might take a while unless someone can
figure it out and submit a patch.