.ig \"-*- nroff -*- Copyright (C) 2004, 2005 Free Software Foundation, Inc. This file is part of the gdiffmk utility, which is part of groff. Written by Mike Bianchi <MBianchi@Foveal.com <mailto:MBianchi@Foveal.com>> Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Permission is granted to copy and distribute translations of this manual into another language, under the above conditions for modified versions, except that this permission notice may be included in translations approved by the Free Software Foundation instead of in the original English. .. . .do mso www.tmac . .TH GDIFFMK @MAN1EXT@ "@MDATE@" "Groff Version @VERSION@" . . .SH NAME gdiffmk \- mark differences between groff/nroff/troff files . . .SH SYNOPSIS .nr a \n(.j .ad l .nr i \n(.i .in +\w'\fBgdiffmk 'u .ti \niu .B gdiffmk .de OP . ie \\n(.$-1 .RI "[\ \fB\\$1\fP" "\\$2" "\ ]" . el .RB "[\ " "\\$1" "\ ]" .. .OP \-a \%addmark .OP \-c \%changemark .OP \-d \%deletemark [\ \c .B \-D .OP \-B .OP \-M "mark1 mark2" ] .OP \-x \%diffcmd .OP \-\- .OP \-\-help .OP \%\-\-version .I \%file1 .I \%file2 [\ \c .IR \%output \ \c ] .br .ad \na . . .SH DESCRIPTION .B gdiffmk compares two .BR groff (1), .BR nroff (1), or .BR troff (1) documents, .I file1 and .IR file2 , and creates an output which is .I file2 with added `margin character' (.mc) commands that indicate the differences. . .LP If the .I output filename is present, the output is written there. If it is .B \- or absent the output is written to the standard output. . .LP If the .I file1 or .I file2 argument is .B \- the standard input is read for that input. Clearly both cannot be .BR \- . . .LP Note that the output is not necessarily compatible with all macro packages and all preprocessors. See the .B BUGS section below. . . .SH OPTIONS .TP .BI \-a addmark Use the .I addmark for source lines not in .I file1 but present in .IR file2 . Default: .BR + . . .TP .B \-B By default, the deleted texts marked by the .B \-D option end with an added troff break command, .BR .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 .BR \-D . . .TP .BI \-c changemark Use the .I changemark for changed source lines. Default: .BR | . . .TP .BI \-d deletemark Use the .I deletemark for deleted source lines. Default: .BR * . . .TP .B \-D Show the deleted portions from changed and deleted text. Default delimiting marks: .BR "[[" " .\&.\&.\&. " "]]" . . .TP .BI \-M "mark1 mark2" Change the delimiting marks for the .B \-D option. It makes no sense to use this option without .BR \-D . . .TP .BI \-x diffcmd Use the .I diffcmd command to perform the comparison of .I file1 and .IR file2 . In particular, .I diffcmd should accept the GNU .B diff .BI \-D name option. Default: .BR diff (1). . .TP .B \-\- All the following arguments are treated as file names, even if they begin with .BR \- . . .TP .B \-\-help Print a usage message on standard error output and exit. . .TP .B \-\-version Print version information on the standard output and exit. . . .SH 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 .B gdiffmk on the output of all the preprocessors instead of the input source. . .LP .B gdiffmk relies on the .BI \-D name option of GNU .BR diff (1) to make a merged `#ifdef' output format. It hasn't been tested whether other versions of .BR diff (1) do support this option. See also the .BI \-x diffcmd option. . .LP Report bugs to bug-groff@gnu.org. Include a complete, self-contained example that will allow the bug to be reproduced, and say which version of .B gdiffmk you are using. . . .SH AUTHORS This document was written and is maintained by .MTO MBianchi@Foveal.com "Mike Bianchi" . . .LP This document is distributed under the terms of the FDL (GNU Free Documentation License) version 1.1 or later. You should have received a copy of the FDL on your system, it is also available on-line at the .URL http://\:www.gnu.org/\:copyleft/\:fdl.html "GNU copyleft site" . . .LP .B gdiffmk is part of the .I groff GNU free software project. All parts of the .I groff package are protected by GNU copyleft licenses. The software files are distributed under the terms of the GNU General Public License (GPL), while the documentation files mostly use the GNU Free Documentation License (FDL). . . .SH COPYRIGHT Copyright \(co 2004, 2005 Free Software Foundation, Inc. . .LP .B gdiffmk 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 2, or (at your option) any later version. . .LP .B 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. . .LP You should have received a copy of the GNU General Public License along with groff; see the file COPYING. If not, write to the Free Software Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. . . .SH "SEE ALSO" .BR groff (@MAN1EXT@), .BR nroff (@MAN1EXT@), .BR gtroff (@MAN1EXT@), .BR diff (@MAN1EXT@) . .\" Local Variables: .\" mode: nroff .\" End: