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#!/usr/bin/perl
#
# htmldiff uses HTML::Diff to create an HTML file that shows the difference
# between two HTML files, given on the command line.
#
# Contributed by Maurice Aubrey <maurice@redweek.com>
#
use strict;
use HTML::Diff;
@ARGV == 2 or die "Usage: $0 <file1> <file2>\n";
my @txt;
foreach (@ARGV) {
open my $fh, $_ or die "unable to read '$_': $!";
local $/;
push @txt, scalar <$fh>;
}
my $changeStatus = 0;
print qq{<style type="text/css"><!-- ins{color: green} del{color:red}--></style>\n};
foreach (@{ html_word_diff(@txt) }) {
my($type, $left, $right) = @$_;
# debug
#$left =~ s/\n/ /g;
#$right =~ s/\n/ /g;
#print "TYPE:$type\nLEFT: $left\nRIGHT: $right\n\n";
#next;
if ($type eq 'u') {
print $left;
} else {
print "<del>$left</del>" if length $left;
print "<ins>$right</ins>" if length $right;
$changeStatus = 1 if (length $left or length $right);
}
}
# print "exiting with status: ".$changeStatus."\n";
exit $changeStatus;
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