> and groff is misbehaving if \" starts with tabs and/or spaces. The only situation I can think of where comments can't have preceding whitespace is ".ds", and this can be worked around by something like
.de DS .ds \\$1 \\$2 .. Demo: .ds xx foo bar \" space belongs to string .DS yy "foo bar" \" not here -\*(xx- -\*(yy-
