# replace NEW image with NEW marker
s,<img [^>]*src="*new[^>]*>,\\(->NEW\\(-> ,g

# handle table cells like listings
s,<tr[^>]*>,<dt>,g
s,<td[^>]*>,<dd>,g

# handle man-only tags
s,<!man:,<,g

# undent headings
s,\(<h.[^>]*>\)[ 	]*,\1,

# remove class attributes
s,\(<[^>]*[^> ]\) *class=[^> ]*,\1,g