quick commit

22 files changed, 2136 insertions, 72 deletions

diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..bf161b3
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,28 @@
+# Xerl (c) 2005-2009,2013 Dipl.-Inform. (FH) Paul C. Buetow
+#
+#       E-Mail: xerl@dev.buetow.org     WWW: http://xerl.buetow.org
+#
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of P. B. Labs nor the names of its contributors may
+#         be used to endorse or promote products derived from this software
+#         without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED Paul C. Buetow ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT Paul C. Buetow BE LIABLE FOR ANY DIRECT,
+# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+#  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..757c3fc
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,29 @@
+all:	
+replace:
+	for i in index.pl Xerl.pm xerl.conf; \
+	do \
+		sed -n "s/$(FROM)/$(INTO)/g; \
+		w .tmp" $$i && mv -f .tmp $$i; \
+	done
+	find ./Xerl -name '*.pm' -exec sh -c 'sed -n "s/$(FROM)/$(INTO)/g; \
+		w .tmp" {} && mv -f .tmp {}' \;
+	find ./Xerl -name '*.pl' -exec sh -c 'sed -n "s/$(FROM)/$(INTO)/g; \
+		w .tmp" {} && mv -f .tmp {}' \;
+	find ./Xerl -name '*.log' -exec sh -c 'sed -n "s/$(FROM)/$(INTO)/g; \
+		w .tmp" {} && mv -f .tmp {}' \;
+	find ./Xerl -name '*.xml' -exec sh -c 'sed -n "s/$(FROM)/$(INTO)/g; \
+		w .tmp" {} && mv -f .tmp {}' \;
+	chmod 755 index.pl
+perltidy:
+	find . -name \*.fpl | xargs perltidy -i=2 -b 
+	find . -name \*.pl | xargs perltidy -i=2 -b 
+	find . -name \*.pm | xargs perltidy -i=2 -b 
+	find . -name \*.bak | xargs rm -f
+todo:
+	grep -R TODO . | grep -v Makefile | grep -v .git
+warn: 
+	perl index.pl 2> warnings
+	less warnings
+	rm -f warnings
+kb:
+	find . -name '*.pm' -exec du -hs {} \; | awk 'BEGIN{kb=0}{kb+=$$1}END{print kb}'
diff --git a/README b/README
new file mode 100644
index 0000000..b9257fc
--- /dev/null
+++ b/README
@@ -0,0 +1,73 @@
+STYLEGUIDE:
+
+Always do:
+
+Pragmatic modules ALWAYS to use in ALL packages: 
+
+use strict;
+use warnings;
+
+Only for packages for including package UNIVERSAL definitions
+
+use Xerl::Page::Base;
+
+Object oriented coding style
+
+Always use method prototypes if possible
+
+sub foo($;$) { .... }
+
+Explicit object typing if possible
+
+my Class::Name::Here $foo = Class::Name::Here->new();
+
+If no real ret val, set undef; explicitly
+
+sub foo() {
+  # Do some stuff
+...
+# Set explicit undef ret value
+return undef;
+}
+
+Private subs use _ as its prefix and are called only from the current package.
+
+package Xerl::Foo::Bla;
+.
+.
+
+sub _iamprivate($) {
+my Xerl::Foo:Bla $self = $_[0];
+.
+.
+}
+
+sub iampublic($) {
+my Xerl::Foo:Bla $self = $_[0];
+$self->_iamprivate();
+return undef;
+}
+
+Static subs (not OOP) are in CAPITAL letters. 
+
+sub IAMSTATIC($) {
+print shift;
+return 'Hello World';
+}
+
+sub iamdynamic($) {
+my Xerl::Foo:Bla $self = $_[0];
+return Xerl::Foo::Bla::IAMSTATIC( $self->get_somevalue() );
+}
+
+Static private subs start with _ and are written in CAPITAL letters
+
+sub _IAMSTATICPRIVATE() { 
+.
+.
+}
+
+Use Pidy to automaically restyle the code! (make perltidy)
+
+Mark things which are still to do with TODO: at any place in the source
+tree. (Can be searched for using 'make todo').
diff --git a/TODO b/TODO
new file mode 100644
index 0000000..c8feee7
--- /dev/null
+++ b/TODO
@@ -0,0 +1,7 @@
+Hint: Run 'make todo' to see everything in every file what is to do!
+
+TODO: - Documentation of all features/options
+TODO: - Fix XML bug
+TODO: - Use Template Tool Kit
+TODO: - Use X?HTML5 by default
+TODO: - Support a Debian package
diff --git a/Xerl.pm b/Xerl.pm
new file mode 100644
index 0000000..c8d816a
--- /dev/null
+++ b/Xerl.pm
@@ -0,0 +1,88 @@
+# Xerl (c) 2005-2011,2013 Dipl.-Inform. (FH) Paul C. Buetow
+#
+# 	E-Mail: xerl@dev.buetow.org 	WWW: http://xerl.buetow.org
+#
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of buetow.org nor the names of its contributors may
+# 	  be used to endorse or promote products derived from this software
+# 	  without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED Paul C. Buetow ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT Paul C. Buetow BE LIABLE FOR ANY DIRECT,
+# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+#  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+
+package Xerl;
+
+use strict;
+use warnings;
+
+use CGI::Carp 'fatalsToBrowser';
+use Time::HiRes 'gettimeofday';
+
+use Xerl::Base;
+use Xerl::Main::Global;
+use Xerl::Page::Configure;
+use Xerl::Page::Document;
+use Xerl::Page::Parameter;
+use Xerl::Page::Request;
+use Xerl::Page::Templates;
+
+sub run($) {
+  my Xerl $self = $_[0];
+  my $time = [gettimeofday];
+
+  my Xerl::Page::Request $request =
+    Xerl::Page::Request->new( request => $ENV{REQUEST_URI} );
+
+  $request->parse();
+  my Xerl::Page::Configure $config =
+    Xerl::Page::Configure->new( config => $self->get_config(), %$request );
+
+  $config->parse();
+  return undef if $config->finish_request_exists();
+
+  $config->defaults();
+
+  my Xerl::Page::Parameter $parameter =
+    Xerl::Page::Parameter->new( config => $config );
+
+  $parameter->parse();
+  return undef if $config->finish_request_exists();
+
+  if ( $config->document_exists() ) {
+    my Xerl::Page::Document $document =
+      Xerl::Page::Document->new( config => $config );
+
+    $document->parse();
+    return undef if $config->finish_request_exists();
+
+  }
+  else {
+    my Xerl::Page::Templates $templates =
+      Xerl::Page::Templates->new( config => $config );
+
+    $templates->parse();
+    return undef if $config->finish_request_exists();
+    $templates->print($time);
+  }
+
+  return undef;
+}
+
+1;
diff --git a/Xerl/Base.pm b/Xerl/Base.pm
new file mode 100644
index 0000000..589e325
--- /dev/null
+++ b/Xerl/Base.pm
@@ -0,0 +1,135 @@
+# Xerl (c) 2005-2011,2013 Dipl.-Inform. (FH) Paul C. Buetow
+#
+# 	E-Mail: xerl@dev.buetow.org 	WWW: http://xerl.buetow.org
+#
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of buetow.org nor the names of its contributors may
+# 	  be used to endorse or promote products derived from this software
+# 	  without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED Paul C. Buetow ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT Paul C. Buetow BE LIABLE FOR ANY DIRECT,
+# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+#  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+
+package UNIVERSAL;
+
+use strict;
+use warnings;
+
+sub new ($;) {
+  my $self = shift;
+
+  bless {@_} => $self;
+}
+
+sub setval($$$) {
+  my UNIVERSAL $self = $_[0];
+
+  $self->{ $_[1] } = $_[2];
+
+  return undef;
+}
+
+sub getval($$) {
+  my UNIVERSAL $self = $_[0];
+
+  return defined $self->{ $_[1] } ? $self->{ $_[1] } : '';
+}
+
+sub exists($$) {
+  my UNIVERSAL $self = $_[0];
+
+  return exists $self->{ $_[1] } ? 1 : 0;
+}
+
+sub AUTOLOAD {
+  my UNIVERSAL $self = $_[0];
+  my $auto = our $AUTOLOAD;
+  return $self if $auto =~ /DESTROY/;
+
+  if ( $auto =~ /.*::set_(.+)$/ ) {
+    $self->{$1} = $_[1];
+
+  }
+  elsif ( $auto =~ /.*::get_(.+)_ref$/ ) {
+    return defined $self->{$1} ? \$self->{$1} : [''];
+
+  }
+  elsif ( $auto =~ /.*::get_(.+)$/ ) {
+    return defined $self->{$1} ? $self->{$1} : '';
+
+  }
+  elsif ( $auto =~ /.*::undef_(.+)$/ ) {
+    return '' unless defined $self->{$1};
+
+    my $retval = $self->{$1};
+    undef $self->{$1};
+    return $retval;
+
+  }
+  elsif ( $auto =~ /.*::append_(.+)$/ ) {
+    if ( defined $self->{$1} ) {
+      $self->{$1} .= $_[1];
+
+    }
+    else {
+      $self->{$1} = $_[1];
+    }
+
+  }
+  elsif ( $auto =~ /.*::push_(.+)$/ ) {
+    if ( exists $self->{$1} ) {
+      push @{ $self->{$1} }, $_[1];
+
+    }
+    else {
+      $self->{$1} = [ $_[1] ];
+    }
+
+  }
+  elsif ( $auto =~ /.*::first_(.+)$/ ) {
+    return exists $self->{$1} ? ${ $self->{$1} }[0] : '';
+
+  }
+  elsif ( $auto =~ /.*::(.+)_exists$/ ) {
+    return exists $self->{$1} ? 1 : 0;
+
+  }
+  elsif ( $auto =~ /.*::(.+)_length$/ ) {
+    return ( ref $self->{$1} eq 'ARRAY' ) ? scalar @{ $self->{$1} } : 0;
+
+  }
+  elsif ( $auto =~ /.*::(.+)_isset$/ ) {
+    return exists $self->{$1} ? $self->{ $_[0] } : 0;
+
+  }
+  elsif ( $auto =~ /.*::debug$/ ) {
+    print "DEBUG: @_\n";
+    return undef;
+
+  }
+  else {
+    print "$auto is not a method of $self or UNIVERSAL\n";
+  }
+
+  return $self;
+}
+
+1;
+
diff --git a/Xerl/Main/Global.pm b/Xerl/Main/Global.pm
new file mode 100644
index 0000000..f70ef6d
--- /dev/null
+++ b/Xerl/Main/Global.pm
@@ -0,0 +1,96 @@
+# Xerl (c) 2005-2011,2013 Dipl.-Inform. (FH) Paul C. Buetow
+#
+# 	E-Mail: xerl@dev.buetow.org 	WWW: http://xerl.buetow.org
+#
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of buetow.org nor the names of its contributors may
+# 	  be used to endorse or promote products derived from this software
+# 	  without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED Paul C. Buetow ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT Paul C. Buetow BE LIABLE FOR ANY DIRECT,
+# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+#  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+
+package Xerl::Main::Global;
+
+sub SHUTDOWN {
+  exit 0;
+
+  # Never reach this point
+  return undef;
+}
+
+sub DEBUG {
+  print 'Debug::', @_, "\n";
+
+  return undef;
+}
+
+sub ERROR {
+  print "Content-Type: text/plain\n\nXerl runtime error: ",
+    join( ' ', time, @_ );
+
+  Xerl::Main::Global::SHUTDOWN();
+
+  # Never reach this point
+  return undef;
+}
+
+sub PLAIN {
+  print "Content-Type: text/plain\n\n";
+
+  DEBUG(@_) if @_;
+
+  return undef;
+}
+
+sub REDIRECT ($) {
+  my $location = shift;
+  print "Status: 301 Moved Permanantly\n";
+  print "Location: $location\n\n";
+  return undef;
+}
+
+sub _HTTP_DESCR ($;$) {
+  my ( $status, $infomsg ) = @_;
+
+  $infomsg //= '';
+
+  if ( $status == 404 ) {
+    "Status: 404 Not Found $infomsg\015\012\n\n"
+
+  }
+  else {
+    "Status: 405 Method not allowed $infomsg\015\012\n\n";
+  }
+}
+
+sub HTTP {
+  my $descr = _HTTP_DESCR(shift);
+  print $descr;
+  local $, = ' ';
+  print $descr;
+
+  Xerl::Main::Global::SHUTDOWN();
+
+  # Never reach this point
+  return undef;
+}
+
+1;
diff --git a/Xerl/Page/Configure.pm b/Xerl/Page/Configure.pm
new file mode 100644
index 0000000..1a9ecde
--- /dev/null
+++ b/Xerl/Page/Configure.pm
@@ -0,0 +1,171 @@
+# Xerl (c) 2005-2011,2013 Dipl.-Inform. (FH) Paul C. Buetow
+#
+# 	E-Mail: xerl@dev.buetow.org 	WWW: http://xerl.buetow.org
+#
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of buetow.org nor the names of its contributors may
+# 	  be used to endorse or promote products derived from this software
+# 	  without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED Paul C. Buetow ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT Paul C. Buetow BE LIABLE FOR ANY DIRECT,
+# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+#  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+
+package Xerl::Page::Configure;
+
+use strict;
+use warnings;
+
+use Xerl::Base;
+use Xerl::Tools::FileIO;
+use Xerl::XML::Element;
+
+sub parse($) {
+  my Xerl::Page::Configure $self = $_[0];
+
+  my Xerl::Tools::FileIO $file =
+    Xerl::Tools::FileIO->new( 'path' => $self->get_config() );
+
+  if ( -1 == $file->fslurp() ) {
+    $self->set_finish_request(1);
+    return undef;
+  }
+
+  my $re = qr/^(.+?) *=(.+?) *\n?$/;
+
+  for ( @{ $file->get_array() } ) {
+    next if /^ *#/;
+
+    $self->setval( $1, $self->eval($2) ) if $_ =~ $re;
+  }
+
+  return $self;
+}
+
+sub defaults($) {
+  my Xerl::Page::Configure $self = $_[0];
+
+  $self->set_proto('https') if exists $ENV{HTTPS};
+
+  $self->set_site( $self->get_defaultcontent() )
+    unless $self->site_exists();
+
+  $self->set_nsite( $self->get_site() =~ /^(?:\d*\.)?(.*)/ );
+
+  $self->set_template( $self->get_defaulttemplate() )
+    unless $self->template_exists();
+
+  $self->set_style( $self->get_defaultstyle() )
+    unless $self->style_exists();
+
+  $self->set_proto( $self->get_defaultproto() )
+    unless $self->proto_exists();
+
+  $self->set_host( lc $ENV{HTTP_HOST} )
+    unless $self->host_exists();
+
+  unless ( -d $self->get_hostroot() . $self->get_host() ) {
+    my $redirect = $self->get_hostroot() . 'redirect:' . $self->get_host();
+    if ( -f $redirect ) {
+      my Xerl::Tools::FileIO $file =
+        Xerl::Tools::FileIO->new( 'path' => $redirect );
+      $file->fslurp();
+      my $location = $file->shift();
+      Xerl::Main::Global::REDIRECT($location);
+      $self->set_finish_request(1);
+    }
+    my $alias = $self->get_hostroot() . 'alias:' . $self->get_host();
+    if ( -f $alias ) {
+      my Xerl::Tools::FileIO $file =
+        Xerl::Tools::FileIO->new( 'path' => $alias );
+      $file->fslurp();
+      $self->set_host( $file->shift() );
+    }
+  }
+
+  $self->set_outputformat( $self->get_defaultoutputformat() )
+    unless $self->outputformat_exists();
+
+  if ( $self->format_exists() ) {
+    $self->set_outputformat( $self->get_format() );
+    $self->set_template( $self->get_format() );
+    $self->set_site( $self->get_format() );
+    $self->set_nocache(1)
+      if $self->get_format() =~ /\.feed$/;
+  }
+
+  $self->set_host( $self->getval( $self->get_host() ) )
+    if $self->exists( $self->get_host() );
+
+  $self->set_host( $self->getval( $self->get_host() ) )
+    if $self->exists( $self->get_host() );
+
+  my $request_subdir = $self->get_request_subdir();
+  $self->set_hostpath(
+    $self->get_hostroot() . $self->get_host() . $request_subdir . "/" );
+
+  $self->set_defaulthostpath(
+    $self->get_hostroot() . $self->get_defaulthost() . '/' );
+
+  $self->set_cachepath(
+    $self->get_cacheroot() . $self->get_host() . $request_subdir . '/' );
+
+  $self->set_htdocspath( $self->get_hostpath() . 'htdocs/' );
+
+  $self->set_templatespath( $self->get_hostpath() . 'templates/' );
+
+  $self->set_contentpath( $self->get_hostpath() . 'content/' );
+
+  # $self->set_ipv6( $ENV{REMOTE_ADDR} =~ /:/ ? 1 : 0 );
+
+  return undef;
+}
+
+sub eval($$) {
+  my Xerl::Page::Configure $self = $_[0];
+  my $val = $_[1];
+
+  $val =~ s/^!(.+)/`$1`/eo;
+  return $val;
+}
+
+sub insertxmlvars($$) {
+  my Xerl::Page::Configure $self = $_[0];
+  my Xerl::XML::Element $element = $_[1];
+
+  $element = $element->starttag('variables');
+
+  return $self
+    unless defined $element
+      or $element->get_array() eq 'ARRAY';
+
+  my $text;
+  for ( @{ $element->get_array() } ) {
+    $text = $_->get_text();
+    chomp $text;
+
+    $text =~ s/%%(.*?)%%/$self->getval($1)/eg;
+    $self->setval( $_->get_name(), $text );
+  }
+
+  return $self;
+}
+
+1;
+
diff --git a/Xerl/Page/Content.pm b/Xerl/Page/Content.pm
new file mode 100644
index 0000000..d9d7d34
--- /dev/null
+++ b/Xerl/Page/Content.pm
@@ -0,0 +1,225 @@
+# Xerl (c) 2005-2011,2013 Dipl.-Inform. (FH) Paul C. Buetow
+#
+# 	E-Mail: xerl@dev.buetow.org 	WWW: http://xerl.buetow.org
+#
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of buetow.org nor the names of its contributors may
+# 	  be used to endorse or promote products derived from this software
+# 	  without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED Paul C. Buetow ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT Paul C. Buetow BE LIABLE FOR ANY DIRECT,
+# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+#  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+
+package Xerl::Page::Content;
+
+use strict;
+use warnings;
+
+use Xerl::Base;
+
+use Xerl::XML::Reader;
+use Xerl::XML::Element;
+use Xerl::Page::Rules;
+use Xerl::Page::Configure;
+
+sub parse($) {
+  my Xerl::Page::Content $self     = $_[0];
+  my Xerl::Page::Configure $config = $self->get_config();
+
+  my Xerl::XML::Reader $xmlcontent = Xerl::XML::Reader->new(
+    path   => $config->get_templatepath(),
+    config => $config
+  );
+
+  if ( -1 == $xmlcontent->open() ) {
+    $config->set_finish_request(1);
+    return undef;
+  }
+
+  $xmlcontent->parse();
+
+  my Xerl::Page::Rules $rules = Xerl::Page::Rules->new( config => $config );
+  $rules->parse( $config->get_xmlconfigrootobj() )
+    unless $config->exists('noparse');
+
+  $config->insertxmlvars( $config->get_xmlconfigrootobj() );
+  $self->insertrules( $rules, $xmlcontent->get_root() );
+
+  return undef;
+}
+
+sub insertrules($$$$) {
+  my Xerl::Page::Content $self   = $_[0];
+  my Xerl::Page::Rules $rules    = $_[1];
+  my Xerl::XML::Element $element = $_[2];
+
+  # Start inserting rules at <content>
+  $element = $element->starttag('content');
+
+  # If there is no <content>-tag, dont use a rule!
+  return unless defined $element;
+
+  my @content;
+  my $params = $element->get_params();
+
+  unshift @content, "Content-Type: $params->{type}\n\n"
+    if ref $params eq 'HASH' and exists $params->{type};
+
+  push @content, $self->_insertrules( $rules, $element );
+  $self->set_content( \@content );
+
+  return undef;
+}
+
+sub _insertrules($$$) {
+  my Xerl::Page::Content $self     = $_[0];
+  my Xerl::Page::Rules $rules      = $_[1];
+  my Xerl::XML::Element $element   = $_[2];
+  my Xerl::Page::Configure $config = $self->get_config();
+  my $nonewlines                   = 0;
+
+  #$element->print();
+  #
+  # Don't interate through the XML childs if we have a leaf node.
+  return () unless ref $element->get_array() eq 'ARRAY';
+  my ( $name, $rule, @content, $text, $params );
+
+  for my $succ ( @{ $element->get_array() } ) {
+    $name   = $succ->get_name();
+    $text   = $succ->get_text();
+    $params = $succ->get_params();
+
+    # Remove leading and ending whitespaces, also ending newlines.
+    $text =~ s/^ *(.*)( |\n)*$/$1/g;
+    unless ( ref( $rule = $rules->getval($name) ) eq 'ARRAY' ) {
+      if ( lc $name eq 'noop' ) {
+        if ( ref $succ->get_array() eq 'ARRAY' ) {
+          push @content, $self->_insertrules( $rules, $succ );
+
+        }
+        else {
+          push @content, "$text\n";
+        }
+
+      }
+      elsif ( lc $name eq 'tag' ) {
+        push @content, "<$text>\n";
+
+      }
+      elsif ( lc $name eq 'perl' ) {
+
+        # Perl content will be interpreted by Xerl::Page::Templates::print later
+        push @content, '<perl>', $text, '</perl>';
+
+      }
+      elsif ( lc $name eq 'navigation' ) {
+        my $menus = $config->get_menuobj()->get_array();
+
+        if ( ref $menus eq 'ARRAY' ) {
+          push @content, $self->_insertrules( $rules, $_ ) for @$menus;
+        }
+
+      }
+      else {
+
+        # No rule available, use the tag unmodified!
+        $name =~ s/^=//o;    # Remove the leading =
+        if ( $succ->get_single() ) {
+          push @content, "<$name" . ( $succ->params_str() || '' ) . " />\n"
+
+        }
+        else {
+          push @content,
+            "<$name" . ( $succ->params_str() || '' ) . '>',
+            $self->_insertrules( $rules, $succ ), $text, "</$name>\n";
+        }
+      }
+
+    }
+    else {
+
+      # Get a local copy of lrule, because orule may be modified.
+      # And then insert special vars if required:
+      #  @@text@@ => Text content of the current tag.
+
+      my $ruleparams = $rule->[2];
+      $nonewlines = 1 if exists $ruleparams->{nonewlines};
+
+      my ( $orule, $crule ) = ( $rule->[0], $rule->[1] );
+
+      $self->_insert_special_vars( $rules, $succ, \$orule );
+      $self->_insert_special_vars( $rules, $succ, \$crule );
+      chomp $orule;
+
+      # Parse for known tag params.
+      if ( ref $params eq 'HASH' ) {
+        Xerl::Page::Templates::PARSELINE( $config, '%%', \$text );
+
+        # <tag basename='yes'>path/to/file.bla</tag> => <tag>file.bla</tag>
+        $text =~ s#.*/(.*)$#$1# if lc $params->{basename} eq 'yes';
+
+        # <tag cut='?'>foo.bar.tld?options</tag> => <tag>?options</tag>
+        if ( exists $params->{cut} ) {
+          my $cut = quotemeta $params->{cut};
+          $text =~ s/.*$cut(.*)$/$1/o;
+        }
+
+        $text .= $params->{addback}
+          if exists $params->{addback};
+        $text = $params->{addfront} . $text
+          if exists $params->{addfront};
+      }
+
+      my $oadd =
+        exists $ruleparams->{addfront}
+        ? '<' . $ruleparams->{addfront}
+        : '';
+
+      my $cadd =
+        exists $ruleparams->{addback} ? $ruleparams->{addback} . '>' : '';
+
+      push @content, $orule, $oadd, $self->_insertrules( $rules, $succ ),
+        $text, $cadd, $crule;
+    }
+  }
+
+  return $nonewlines ? map { s/\n/ /go; $_ } @content : @content;
+}
+
+sub _insert_special_vars($$$$) {
+  my Xerl::Page::Content $self     = $_[0];
+  my Xerl::Page::Rules $rules      = $_[1];
+  my Xerl::XML::Element $element   = $_[2];
+  my Xerl::Page::Configure $config = $self->get_config();
+  my $rtext                        = $_[3];
+
+  $$rtext =~ s/@\@text\@\@/$_=$element->get_text();chomp;$_/geo;
+  $$rtext =~ s/@\@ln\@\@//go;
+
+  if ( $$rtext =~ /@\@(.*?)\@\@/ ) {
+    my $params = $element->get_params();
+    return unless ref $params eq 'HASH';
+    $$rtext =~ s/@\@(.*?)\@\@/$params->{$1}||''/geo;
+  }
+
+  return undef;
+}
+
+1;
diff --git a/Xerl/Page/Document.pm b/Xerl/Page/Document.pm
new file mode 100644
index 0000000..afc4da3
--- /dev/null
+++ b/Xerl/Page/Document.pm
@@ -0,0 +1,75 @@
+# Xerl (c) 2005-2011,2013 Dipl.-Inform. (FH) Paul C. Buetow
+#
+# 	E-Mail: xerl@dev.buetow.org 	WWW: http://xerl.buetow.org
+#
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of buetow.org nor the names of its contributors may
+# 	  be used to endorse or promote products derived from this software
+# 	  without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED Paul C. Buetow ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT Paul C. Buetow BE LIABLE FOR ANY DIRECT,
+# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+#  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+
+package Xerl::Page::Document;
+
+use strict;
+use warnings;