GDIFFMK
Section: User Commands (1)
Updated: 4 November 2014
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NAME
SYNOPSIS
gdiffmk
[
-a addmark ]
[
-c changemark ]
[
-d deletemark ]
[
-D
[
-B ]
[
-M mark1 mark2 ]
]
[
-x diffcmd ]
[
-- ]
[
--help ]
[
--version ]
file1
file2
[
output ]
DESCRIPTION
gdiffmk
compares two
groff(1),
nroff(1),
or
troff(1)
documents,
file1
and
file2,
and creates an output which is
file2
with added `margin character' (.mc) commands that indicate the differences.
If the
output
filename is present,
the output is written there.
If it is
-
or absent the output is written to the standard output.
If the
file1
or
file2
argument is
-
the standard input is read for that input.
Clearly both cannot be
-.
Note that the output is not necessarily compatible with all macro packages
and all preprocessors.
See the
BUGS
section below.
OPTIONS
- -aaddmark
-
Use the
addmark
for source lines not in
file1
but present in
file2.
Default:
+.
- -B
-
By default, the deleted texts marked by the
-D
option end
with an added troff break command,
.br,
to ensure that the deletions are marked properly.
This is the only way to guarantee that deletions and small
changes get flagged.
This option directs the program not to insert these breaks; it makes
no sense to use it without
-D.
- -cchangemark
-
Use the
changemark
for changed source lines.
Default:
|.
- -ddeletemark
-
Use the
deletemark
for deleted source lines.
Default:
*.
- -D
-
Show the deleted portions from changed and deleted text.
Default delimiting marks:
[[ ... ]].
- -Mmark1 mark2
-
Change the delimiting marks for the
-D
option.
It makes no sense to use this option without
-D.
- -xdiffcmd
-
Use the
diffcmd
command to perform the comparison of
file1
and
file2.
In particular,
diffcmd
should accept the GNU
diff
-Dname
option.
Default:
diff(1).
- --
-
All the following arguments are treated as file names,
even if they begin with
-.
- --help
-
Print a usage message on standard error output and exit.
- --version
-
Print version information on the standard output and exit.
BUGS
The output is not necessarily compatible with all macro packages
and all preprocessors.
A workaround that is often successful against preprocessor problems is
to run
gdiffmk
on the output of all the preprocessors instead of the input source.
gdiffmk
relies on the
-Dname
option of GNU
diff(1)
to make a merged `#ifdef' output format.
It hasn't been tested whether other versions of
diff(1)
do support this option.
See also the
-xdiffcmd
option.
Report bugs to
Include a complete, self-contained example that will allow the bug to
be reproduced, and say which version of
gdiffmk
you are using.
COPYRIGHT
Copyright [co] 2004-2014 Free Software Foundation, Inc.
This file is part of the gdiffmk utility, which is part of groff, a
free software project.
You can redistribute and/or modify gdiffmk 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.
gdiffmk 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 this program. If not, see <http://www.gnu.org/licenses/>.
AUTHORS
This document was written and is maintained by
Mike Bianchi
SEE ALSO
groff(1),
nroff(1),
gtroff(1),
diff(1)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- OPTIONS
-
- BUGS
-
- COPYRIGHT
-
- AUTHORS
-
- SEE ALSO
-
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- Running on 
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