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      1 gdiffmk is approximately a recreation of the original Bell Labs/AT&T diffmk
      2 command for troff/nroff documents, with enhancements.
      3 
      4 It should not be confused with `diffmk' commands that operate on XML.
      5 
      6 The inspiration for this code was a Perl 2 version written in 1989 by Randal
      7 L. Schwartz.  See
      8   landfield.com/software/comp.sources.misc/archive-name/volume06/diffmk.p.gz
      9 
     10 The command also attempts to reproduce some of the functionality of the old
     11 `nrchbar' command.  See
     12   open-systems.ufl.edu/mirrors/ftp.isc.org/usenet/comp.sources.unix/volume10/nrchbar.Z
     13 
     14 Thanks to Werner Lemberg for help in making the package more portable and
     15 fit into the GNU groff source structure.
     16 
     17 Gnu diff(1) with the -Dname option does all of the work and sed(1)
     18 translates the output into something groff/troff/nroff can handle.
     19 
     20 Note the BUGS on the man page.
     21 
     22 The `tests' directory contains simple tests.  `runtests run' runs them and
     23 compares the output against baseline files.  Calling `runtests' without
     24 argument gives the usage.
     25 
     26 ----------------------------------------------------------------------------
     27 
     28 Copyright (C) 2004, 2005 Free Software Foundation, Inc.
     29 Written by Mike Bianchi <MBianchi (a] Foveal.com <mailto:MBianchi (a] Foveal.com>>
     30 
     31 This file is part of the gdiffmk utility, which is part of groff.
     32 
     33 groff is free software; you can redistribute it and/or modify it
     34 under the terms of the GNU General Public License as published by
     35 the Free Software Foundation; either version 2, or (at your option)
     36 any later version.
     37 
     38 groff is distributed in the hope that it will be useful, but WITHOUT
     39 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
     40 or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
     41 License for more details.
     42 
     43 You should have received a copy of the GNU General Public License
     44 along with groff; see the files COPYING and LICENSE in the top
     45 directory of the groff source.  If not, write to the Free Software
     46 Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA.
     47