#!/usr/bin/perl
# $Id: dtddiff2html,v 2.2 2005/07/16 03:22:57 ehood Exp $
# Author(s): Earl Hood, <earl@earlhood.com>
# POD at end of file.
use Getopt::Long;
use SGML::DTDParse;
MAIN: {
my %opts = ();
GetOptions(\%opts,
@SGML::DTDParse::CommonOptions
) || SGML::DTDParse::usage(-verbose => 0, -exitval => 1);
SGML::DTDParse::process_common_options(\%opts);
print <<EOT;
<html>
<head>
<title>Diff</title>
<style type="text/css">
body {
background-color: #DDDDDD;
}
pre.contextDiff {
background: #EEEEEE;
border-color: black;
border-style: solid;
border-width: thin;
padding: 0.25em;
}
.diffDel {
color: red;
}
.diffAdd {
color: green;
}
.diffChng {
color: blue;
}
</style>
</head>
<body>
<pre class="contextDiff">
EOT
my $in_chng = 0;
while (<>) {
chomp;
if (/^[!]/) {
if (/::=/) {
print '<span class="diffChng">', entify($_), "\n";
$in_chng = 1;
next;
} else {
print '<span class="diffChng">', entify($_), "</span>\n";
next;
}
}
if (/^(---|[*+\-])/) {
if ($in_chng) {
print "</span>";
$in_chng = 0;
}
elsif ($1 eq '---' || $1 eq '*') {
print '<b>', entify($_), "</b>\n";
}
elsif ($1 eq '+') {
print '<span class="diffAdd">', entify($_), "</span>\n";
}
elsif ($1 eq '-') {
print '<span class="diffDel">', entify($_), "</span>\n";
}
next;
}
if ($in_chng && !/\S/) {
print "</span>";
$in_chng = 0;
}
print entify($_), "\n";
}
print qq{</pre>\n};
}
##############################################################################
sub entify {
my $txt = shift;
$txt =~ s/&/&/g;
$txt =~ s/</</g;
$txt =~ s/>/>/g;
$txt;
}
##############################################################################
__END__
=head1 NAME
dtddiff2html - Convert DTD difference to HTML.
=head1 SYNOPSIS
dtddiff parsed-dtd1.xml parsed-dtd2.xml > dtd-diff.txt
dtddiff2html dtd-diff.txt > dtd-diff.html
dtddiff parsed-dtd1.xml parsed-dtd2.xml | dtddiff2html > dtd-diff.html
=head1 DESCRIPTION
B<dtddiff2html> converts the diff-style output of B<dtddiff> into
HTML. The HTML created basically provides color-highlighting
of the diff output.
=head1 OPTIONS
=over 4
=item --version
Print version and synopsis.
=item --help
Print synopsis and options available.
=item --man
Print manual page.
=back
=head1 SEE ALSO
L<dtddiff|dtddiff>
See L<SGML::DTDParse|SGML::DTDParse> for an overview of the DTDParse package.
=head1 PREREQUISITES
B<Getopt::Long>
=head1 AVAILABILITY
E<lt>I<http://dtdparse.sourceforge.net/>E<gt>
=head1 AUTHORS
Earl Hood, <earl@earlhood.com>
=head1 COPYRIGHT AND LICENSE
See L<SGML::DTDParse|SGML::DTDParse> for copyright and license information.