unreachable
unrecog
unrecogcomments
+ unrecogflagcomments
unusedspecial
usedef
usereleased
noaccess --- ignore access comments
nocomments --- ignore all stylized comments
unrecogcomments --- stylized comment is unrecognized
+unrecogflagcomments --- stylized flag comment uses an unrecognized flag
continuecomment --- line continuation marker (\) in comment before */ on same
line
nestcomment --- comment begins inside comment