#!/usr/local/bin/perl
#
# The XML -> HTML WebBuilder script,
# Copyright (c)1999 by Magnus Norddahl / ClanSoft.
#

use English;
use File::Basename;

if ($ARGV[0] eq "")
{
	print "\nThe XML -> HTML WebBuilder script,\n";
	print "Copyright (c)1999 by Magnus Norddahl / ClanSoft.\n\n";

	print "Syntax: webbuilder.pl <theme> <file.xml>\n\n";
	exit(0);
}

open (INPUT, $ARGV[1]) || die "Could not open: $ARGV[1]";
my @input = <INPUT>;
my $input = join("", @input);
close (INPUT);

basename ($ARGV[1]) =~ /^(.*).xml$/;
$output = "$1.html";

open (OUTPUT, ">$output") || die "Could not open $output for writing.";
print OUTPUT convert($input);
close (OUTPUT);

sub convert
{
	my ($input) = @ARG;
	my $html_output;

	if ($input =~ /<xml>(.*)<\/xml>/si)
	{
		my $xml_input = $1;

		if ($input =~ /(<head[>\w].*<\/head>)/si)
		{
			my $xml_head = $1;
			$html_output .= print_head($xml_head, $ARGV[0]);
		}
		else
		{
			die "Document has no head";
		}

		if ($input =~ /<body[>\w](.*)<\/body>/si)
		{
			my $xml_body = $1;
			$html_output .= print_body($xml_body, $ARGV[0]);
		}
		else
		{
			die "Document has no head";
		}
	}
	else
	{
		die "Not valid XML input";
	}

	return $html_output;
}

sub print_head
{
	my ($xml_head, $file) = @ARG;
	my $ml, $buffer;

	# Don't know what this does, but Perceps does it:
	if ($*) { $ml=1; }
	else { $ml=0; }
	
	# Read theme from disk and execute it:
	if ( -e $file )
	{
		open(FILT, "<$file");
		while (<FILT>) { $buffer.=$_; }
		close(FILT);
		eval($buffer);
		
		return theme_header($xml_head);
	}
	else
	{
		die "theme '$file' not found";
	}
}

sub print_body
{
	my ($xml_body, $file) = @ARG;
	my $ml, $buffer;

	# Don't know what this does, but Perceps does it:
	if ($*) { $ml=1; }
	else { $ml=0; }
	
	# Read theme from disk and execute it:
	if ( -e $file )
	{
		open(FILT, "<$file");
		while (<FILT>) { $buffer.=$_; }
		close(FILT);
		eval($buffer);
		
		my @filters = theme_body_filters();
		
		foreach $filter (@filters)
		{
			$xml_body = $filter->($xml_body);
		}

		$xml_body .= theme_body_end();
	}
	else
	{
		die "theme '$file' not found";
	}
	
	return $xml_body."\n";
}