GtkHTML wrap mode?

Hi list,

I've been fooling with php-gtk for about a week now and have been
enjoying it much: http://code.google.com/p/phpitter/

I've ran in to an issue with GtkHTML though... I noticed in docs that
you can set the wrap mode on GtkTextView to by char, instead of by
word.  But the docs for GtkHTML are seriously lacking compared to the
docs for GtkTextView.

Is it possible to change the wrap mode?  I need it to wrap if someone
sends something like "/this/is/a/really/long/path/to/something/so/ha"
over twitter.  Right now the ui has a minimum length of the longest
"word" in your timeline.. :/

Thanks-
Ryan