/usr/bin/pdiff is in a2ps 1:4.14-2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 | #! /bin/sh
# -*- sh -*-
# pdiff --- Print diff in a nice way
# Copyright (c) 1998, 1999 Akim Demaille, Miguel Santana
# This program 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, or (at your option)
# any later version.
#
# This program 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, you can either send email to this
# program's maintainer or write to: The Free Software Foundation,
# Inc.; 59 Temple Place, Suite 330; Boston, MA 02111-1307, USA.
# Author: Akim Demaille <demaille@inf.enst.fr>
# Get the name of the program
program=`echo $0 | sed 's#.*/##g'`
# Local vars
a2ps=${A2PS:-a2ps}
a2ps_options=
debug=
diff_on=words
diff_prog=${DIFF:-diff}
diff_options='-u'
file=
output=
tmpdir=`mktemp -d -t pdiff.XXXXXX` || { echo "$program: Cannot create temporary dir!" >&2 ; exit 1; }
verbose=echo
wdiff_prog=${WDIFF:-wdiff}
wdiff_options='-w[wd- -x-wd] -y{wd+ -z+wd}'
# The version/usage strings
version="pdiff 0.4 (GNU a2ps 4.14)
Written by Akim Demaille.
Copyright (c) 1997-1999 Akim Demaille, Miguel Santana
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
usage="\
Usage: $program FILE1 FILE2 [-- A2PS-OPTIONS...]
Pretty print the differences between FILE1 and FILE2.
Options:
-h, --help display this help and exit
-v, --version display version information and exit
-q, --quiet don't print informational messages
-l, --lines search for line differences (\`diff')
-w, --words search for word differences (\`wdiff')
-o, --output=FILE save the output in FILE
Options for a2ps are given after \`--', for instance
$ pdiff COPYING COPYING.LIB -- -Pdisplay
News, updates and documentation: http://www.inf.enst.fr/~demaille/a2ps/.
Report bugs to <bug-a2ps@gnu.org>."
help="Try \`$program --help' for more information."
# Parse command line arguments.
option_without_arguments='vhsqDlw'
# Push a token among the arguments that will be used to notice when
# we ended options/arguments parsing.
arg_sep="$$--$$"
set dummy ${1+"$@"} "$arg_sep"
shift
while test "x$1" != "x$arg_sep"; do
# Handle --option=value by splitting apart and putting back on argv.
case "$1" in
--*=*)
opt=`echo "$1" | sed -e 's/=.*//'`
val=`echo "$1" | sed -e 's/[^=]*=//'`
shift
set dummy "$opt" "$val" ${1+"$@"}
shift
;;
-[$option_without_arguments]?*)
# Prefix $1 with x to avoid running `echo -na' for instance.
opt=`echo "x$1" | sed -e 's/x-\(.\).*/-\1/'`
rest=`echo "x$1" | sed -e 's/x-.\(.*\)/-\1/'`
shift
set dummy "$opt" "$rest" ${1+"$@"}
shift
;;
# This case needs to be protected so that the case `-??*' does
# not split long options without arguments
--*)
;;
# This is an option with argument. Split apart and put back on argv.
-??*)
opt=`echo "x$1" | sed -e 's/x-\(.\).*/-\1/'`
arg=`echo "x$1" | sed -e 's/x-.\(.*\)/\1/'`
shift
set dummy "$opt" "$arg" ${1+"$@"}
shift
;;
esac
# Now, handle the options. $1 is the option *only*. If it has an
# argument, it is now necessarily in $2 etc. Remember to shift
# when fetching an argument.
case "$1" in
-v | --v*) echo "$version"; exit 0;;
-h | --h*) echo "$usage"; exit 0;;
-s|-q|--q*|--s*) verbose=: ;;
-D | --debug) debug=: ;;
-o|--output) shift
a2ps_options="$a2ps_options --output=$1" ;;
-l|--lines) diff_on=lines;;
-w|--words) diff_on=words;;
-) # We are working with stdin
set dummy "${1+"$@"}" "$1"; shift;;
--) # What remains are not options.
shift
while test "x$1" != "x$arg_sep"; do
set dummy ${1+"$@"} "$1"
shift
shift
done
break;;
-*)
echo "$program: Unknown or ambiguous option \`$1'." >&2
echo "$program: Try \`--help' for more information." >&2
exit 1;;
*) set dummy ${1+"$@"} "$1"
shift
;;
esac
shift
done
# Pop the token
shift
# What remains is ORIG NEW [A2PS_OPTIONS...]
if test $# -lt 2; then
exec 1>&2
echo "$program: not enough arguments"
echo "$help"
exit 1
fi
file1="$1"
shift
file2="$1"
shift
# Set the titles
a2ps_options="--left-title=$file1 --right-title=$file2 $a2ps_options"
a2ps_options="--center-title $a2ps_options"
# Use the right prologue
a2ps_options="--prolog=diff $a2ps_options"
# Give the additional arguments given by the user
a2ps_options="$@ $a2ps_options"
# Set -x now if debugging
test $debug && set -x
# Call the correct diffing program, and pipe into a2ps
case $diff_on in
words) # Word differences
$wdiff_prog $wdiff_options $file1 $file2 \
| $a2ps -Ewdiff $a2ps_options || exit 1
;;
lines) # Line differences
# We need the total number of lines
lines=`wc -l $file1 $file2 | sed -n 3p`
lines=`set -- $lines && echo $1`
$diff_prog $diff_options -$lines $file1 $file2 \
| $a2ps -gEudiff $a2ps_options || exit 1
;;
esac
exit 0
|