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gdiffmk is approximately a recreation of the original Bell Labs/AT&T diffmk
command for troff/nroff documents, with enhancements.
It should not be confused with `diffmk' commands that operate on XML.
The inspiration for this code was a Perl 2 version written in 1989 by Randal
L. Schwartz. See
landfield.com/software/comp.sources.misc/archive-name/volume06/diffmk.p.gz
The command also attempts to reproduce some of the functionality of the old
`nrchbar' command. See
open-systems.ufl.edu/mirrors/ftp.isc.org/usenet/comp.sources.unix/volume10/nrchbar.Z
Thanks to Werner Lemberg for help in making the package more portable and
fit into the GNU groff source structure.
Gnu diff(1) with the -Dname option does all of the work and sed(1)
translates the output into something groff/troff/nroff can handle.
Note the BUGS on the man page.
The `tests' directory contains simple tests. `runtests run' runs them and
compares the output against baseline files. Calling `runtests' without
argument gives the usage.
----------------------------------------------------------------------------
Copyright (C) 2004-2014 Free Software Foundation, Inc.
Written by Mike Bianchi <MBianchi@Foveal.com <mailto:MBianchi@Foveal.com>>
This file is part of the gdiffmk utility, which is part of groff.
groff is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
groff is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
License for more details.
You should have received a copy of the GNU General Public License
along with groff; see the files COPYING and LICENSE in the top
directory of the groff source. If not, write to the Free Software
Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA.
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