[comp.text] Need LaTeX change bar macro

daveb@oresoft.uu.net (David Barnes) (03/17/89)

I'm sure I've seen some change bar macros described in messages here in
the newsgroup or in TeXhax.  I wish I had saved them, but I didn't.  If
someone could net-mail me a macro or point me to a source, I'd be much
obliged.  If it's tailored to the LaTeX environment, that's great, but
a straight TeX macro would be useful, too.  Thanks in advance!