diff --git a/include/mapnik/boolean.hpp b/include/mapnik/boolean.hpp
new file mode 100644
index 000000000..dc74d3d8b
--- /dev/null
+++ b/include/mapnik/boolean.hpp
@@ -0,0 +1,90 @@
+/*****************************************************************************
+ *
+ * This file is part of Mapnik (c++ mapping toolkit)
+ *
+ * Copyright (C) 2011 Artem Pavlenko
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ *****************************************************************************/
+#ifndef MAPNIK_BOOLEAN_HPP
+#define MAPNIK_BOOLEAN_HPP
+#include <istream>
+
+namespace mapnik
+{
+/** Helper for class bool */
+class boolean {
+public:
+    boolean() {}
+    boolean(bool b) : b_(b) {}
+    boolean(boolean const& b) : b_(b.b_) {}
+
+    operator bool() const
+    {
+        return b_;
+    }
+    boolean & operator = (boolean const& other)
+    {
+        b_ = other.b_;
+        return * this;
+    }
+    boolean & operator = (bool other)
+    {
+        b_ = other;
+        return * this;
+    }
+private:
+    bool b_;
+};
+
+/** Special stream input operator for boolean values */
+template <typename charT, typename traits>
+std::basic_istream<charT, traits> &
+operator >> ( std::basic_istream<charT, traits> & s, boolean & b )
+{
+    std::string word;
+    s >> word;
+    if ( s )
+    {
+        if ( word == "true" || word == "yes" || word == "on" ||
+             word == "1")
+        {
+            b = true;
+        }
+        else if ( word == "false" || word == "no" || word == "off" ||
+                  word == "0")
+        {
+            b = false;
+        }
+        else
+        {
+            s.setstate( std::ios::failbit );
+        }
+    }
+    return s;
+}
+
+template <typename charT, typename traits>
+std::basic_ostream<charT, traits> &
+operator << ( std::basic_ostream<charT, traits> & s, boolean const& b )
+{
+    s << ( b ? "true" : "false" );
+    return s;
+}
+
+}
+
+#endif // MAPNIK_BOOLEAN_HPP
diff --git a/include/mapnik/color.hpp b/include/mapnik/color.hpp
index c7f2de610..ad9806276 100644
--- a/include/mapnik/color.hpp
+++ b/include/mapnik/color.hpp
@@ -137,6 +137,14 @@ public:
     std::string to_hex_string() const;
 };
 
+template <typename charT, typename traits>
+std::basic_ostream<charT, traits> &
+operator << ( std::basic_ostream<charT, traits> & s, mapnik::color const& c )
+{
+    std::string hex_string( c.to_string() );
+    s << hex_string;
+    return s;
+}
 
 }
 
diff --git a/include/mapnik/ptree_helpers.hpp b/include/mapnik/ptree_helpers.hpp
index 811317312..64167b590 100644
--- a/include/mapnik/ptree_helpers.hpp
+++ b/include/mapnik/ptree_helpers.hpp
@@ -23,442 +23,17 @@
 #ifndef MAPNIK_PTREE_HELPERS_HPP
 #define MAPNIK_PTREE_HELPERS_HPP
 
-// mapnik
-#include <mapnik/enumeration.hpp>
-#include <mapnik/config_error.hpp>
-#include <mapnik/color_factory.hpp>
-#include <mapnik/util/conversions.hpp>
 // boost
 #include <boost/property_tree/ptree.hpp>
-#include <boost/optional.hpp>
-#include <boost/lexical_cast.hpp>
-
-// stl
-#include <iostream>
-#include <sstream>
 
 namespace mapnik {
 
-template <typename T>
-inline boost::optional<T> fast_cast(std::string const& value);
-
-template <typename T>
-T get(boost::property_tree::ptree const& node, std::string const& name, bool is_attribute,
-      T const& default_value);
-template <typename T>
-T get(boost::property_tree::ptree const& node, std::string const& name, bool is_attribute);
-template <typename T>
-T get_value(boost::property_tree::ptree const& node, std::string const& name);
-template <typename T>
-boost::optional<T> get_optional(boost::property_tree::ptree const& node, std::string const& name,
-                                bool is_attribute);
-
-template <typename T>
-boost::optional<T> get_opt_attr( boost::property_tree::ptree const& node,
-                                 std::string const& name)
-{
-    return get_optional<T>( node, name, true);
-}
-
-template <typename T>
-boost::optional<T> get_opt_child( boost::property_tree::ptree const& node,
-                                  std::string const& name)
-{
-    return get_optional<T>( node, name, false);
-}
-
-template <typename T>
-T get_attr( boost::property_tree::ptree const& node, std::string const& name,
-            T const& default_value )
-{
-    return get<T>( node, name, true, default_value);
-}
-
-template <typename T>
-T get_attr( boost::property_tree::ptree const& node, std::string const& name )
-{
-    return get<T>( node, name, true );
-}
-
-
-template <typename charT, typename traits>
-std::basic_ostream<charT, traits> &
-operator << ( std::basic_ostream<charT, traits> & s, mapnik::color const& c )
-{
-    std::string hex_string( c.to_string() );
-    s << hex_string;
-    return s;
-}
-
-/** Helper for class bool */
-class boolean {
-public:
-    boolean() {}
-    boolean(bool b) : b_(b) {}
-    boolean(boolean const& b) : b_(b.b_) {}
-
-    operator bool() const
-    {
-        return b_;
-    }
-    boolean & operator = (boolean const& other)
-    {
-        b_ = other.b_;
-        return * this;
-    }
-    boolean & operator = (bool other)
-    {
-        b_ = other;
-        return * this;
-    }
-private:
-    bool b_;
-};
-
-/** Special stream input operator for boolean values */
-template <typename charT, typename traits>
-std::basic_istream<charT, traits> &
-operator >> ( std::basic_istream<charT, traits> & s, boolean & b )
-{
-    std::string word;
-    s >> word;
-    if ( s )
-    {
-        if ( word == "true" || word == "yes" || word == "on" ||
-             word == "1")
-        {
-            b = true;
-        }
-        else if ( word == "false" || word == "no" || word == "off" ||
-                  word == "0")
-        {
-            b = false;
-        }
-        else
-        {
-            s.setstate( std::ios::failbit );
-        }
-    }
-    return s;
-}
-
-template <typename charT, typename traits>
-std::basic_ostream<charT, traits> &
-operator << ( std::basic_ostream<charT, traits> & s, boolean const& b )
-{
-    s << ( b ? "true" : "false" );
-    return s;
-}
-
 template <typename T>
 void set_attr(boost::property_tree::ptree & pt, std::string const& name, T const& v)
 {
     pt.put("<xmlattr>." + name, v);
 }
 
-
-class boolean;
-
-template <typename T>
-struct name_trait
-{
-    static std::string name()
-    {
-        return "<unknown>";
-    }
-    // missing name_trait for type ...
-    // if you get here you are probably using a new type
-    // in the XML file. Just add a name trait for the new
-    // type below.
-    BOOST_STATIC_ASSERT( sizeof(T) == 0 );
-};
-
-#define DEFINE_NAME_TRAIT( type, type_name )                  \
-    template <>                                                         \
-    struct name_trait<type>                                             \
-    {                                                                   \
-        static std::string name() { return std::string("type ") + type_name; } \
-    };
-
-
-DEFINE_NAME_TRAIT( double, "double")
-DEFINE_NAME_TRAIT( float, "float")
-DEFINE_NAME_TRAIT( unsigned, "unsigned")
-DEFINE_NAME_TRAIT( boolean, "boolean")
-DEFINE_NAME_TRAIT( int, "integer" )
-DEFINE_NAME_TRAIT( std::string, "string" )
-DEFINE_NAME_TRAIT( color, "color" )
-
-template <typename ENUM, int MAX>
-struct name_trait< mapnik::enumeration<ENUM, MAX> >
-{
-    typedef enumeration<ENUM, MAX> Enum;
-
-    static std::string name()
-    {
-        std::string value_list("one of [");
-        for (unsigned i = 0; i < Enum::MAX; ++i)
-        {
-            value_list += Enum::get_string( i );
-            if ( i + 1 < Enum::MAX ) value_list += ", ";
-        }
-        value_list += "]";
-
-        return value_list;
-    }
-};
-
-template <typename T>
-inline boost::optional<T> fast_cast(std::string const& value)
-{
-    return boost::lexical_cast<T>( value );
-}
-
-template <>
-inline boost::optional<int> fast_cast(std::string const& value)
-{
-    int result;
-    if (mapnik::conversions::string2int(value,result))
-        return boost::optional<int>(result);
-    return boost::optional<int>();
-}
-
-template <>
-inline boost::optional<double> fast_cast(std::string const& value)
-{
-    double result;
-    if (mapnik::conversions::string2double(value,result))
-        return boost::optional<double>(result);
-    return boost::optional<double>();
-}
-
-template <>
-inline boost::optional<float> fast_cast(std::string const& value)
-{
-    float result;
-    if (mapnik::conversions::string2float(value,result))
-        return boost::optional<float>(result);
-    return boost::optional<float>();
-}
-
-template <typename T>
-T get(boost::property_tree::ptree const& node,
-      std::string const& name,
-      bool is_attribute,
-      T const& default_value)
-{
-    boost::optional<std::string> str;
-    if (is_attribute)
-    {
-        str = node.get_optional<std::string>( std::string("<xmlattr>.") + name );
-    }
-    else
-    {
-        str = node.get_optional<std::string>(name + ".<xmltext>");
-    }
-
-    if ( str )
-    {
-        boost::optional<T> result = fast_cast<T>(*str);
-        if (result)
-        {
-            return *result;
-        }
-        else
-        {
-            throw config_error(std::string("Failed to parse ") +
-                               (is_attribute ? "attribute" : "child node") + " '" +
-                               name + "'. Expected " + name_trait<T>::name() +
-                               " but got '" + *str + "'");
-        }
-    }
-    else
-    {
-        return default_value;
-    }
-}
-
-template <>
-inline color get(boost::property_tree::ptree const& node,
-                 std::string const& name,
-                 bool is_attribute,
-                 color const& default_value)
-{
-    boost::optional<std::string> str;
-    if (is_attribute)
-    {
-        str = node.get_optional<std::string>( std::string("<xmlattr>.") + name );
-    }
-    else
-    {
-        str = node.get_optional<std::string>(name + ".<xmltext>");
-    }
-
-    if ( str )
-    {
-        try
-        {
-            return mapnik::color_factory::from_string((*str).c_str());
-        }
-        catch (...)
-        {
-            throw config_error(std::string("Failed to parse ") +
-                               (is_attribute ? "attribute" : "child node") + " '" +
-                               name + "'. Expected " + name_trait<color>::name() +
-                               " but got '" + *str + "'");
-        }
-    }
-    else
-    {
-        return default_value;
-    }
-}
-
-template <typename T>
-T get(boost::property_tree::ptree const& node, std::string const& name, bool is_attribute)
-{
-    boost::optional<std::string> str;
-    if (is_attribute)
-    {
-        str = node.get_optional<std::string>( std::string("<xmlattr>.") + name);
-    }
-    else
-    {
-        str = node.get_optional<std::string>(name + ".<xmltext>");
-    }
-
-    if ( ! str )
-    {
-        throw config_error(std::string("Required ") +
-                           (is_attribute ? "attribute " : "child node ") +
-                           "'" + name + "' is missing");
-    }
-    boost::optional<T> result = fast_cast<T>(*str);
-    if (result)
-    {
-        return *result;
-    }
-    else
-    {
-        throw config_error(std::string("Failed to parse ") +
-                           (is_attribute ? "attribute" : "child node") + " '" +
-                           name + "'. Expected " + name_trait<T>::name() +
-                           " but got '" + *str + "'");
-    }
-}
-
-template <typename T>
-T get_value(boost::property_tree::ptree const& node, std::string const& name)
-{
-    try
-    {
-        /* NOTE: get_child works as long as there is only one child with that name.
-           If this function is used this used this condition must always be satisfied.
-        */
-        return node.get_child("<xmltext>").get_value<T>();
-    }
-    catch (boost::property_tree::ptree_bad_path)
-    {
-        /* If the XML parser did not find any non-empty data element the is no
-           <xmltext> node. But we don't want to fail here but simply return a
-           default constructed value of the requested type.
-        */
-        return T();
-    }
-    catch (...)
-    {
-        throw config_error(std::string("Failed to parse ") +
-                           name + ". Expected " + name_trait<T>::name() +
-                           " but got '" + node.data() + "'");
-    }
-}
-
-template <typename T>
-boost::optional<T> get_optional(boost::property_tree::ptree const& node,
-                                                 std::string const& name,
-                                                 bool is_attribute)
-{
-    boost::optional<std::string> str;
-    if (is_attribute)
-    {
-        str = node.get_optional<std::string>( std::string("<xmlattr>.") + name);
-    }
-    else
-    {
-        str = node.get_optional<std::string>(name + ".<xmltext>");
-    }
-
-    boost::optional<T> result;
-    if ( str )
-    {
-        result = fast_cast<T>(*str);
-        if (!result)
-        {
-            throw config_error(std::string("Failed to parse ") +
-                               (is_attribute ? "attribute" : "child node") + " '" +
-                               name + "'. Expected " + name_trait<T>::name() +
-                               " but got '" + *str + "'");
-        }
-    }
-
-    return result;
-}
-
-template <>
-inline boost::optional<std::string> get_optional(boost::property_tree::ptree const& node,
-                                                 std::string const& name,
-                                                 bool is_attribute)
-{
-    if (is_attribute)
-    {
-        return node.get_optional<std::string>( std::string("<xmlattr>.") + name);
-    }
-    else
-    {
-        return node.get_optional<std::string>(name + ".<xmltext>");
-    }
-}
-
-template <>
-inline boost::optional<color> get_optional(boost::property_tree::ptree const& node,
-                                                 std::string const& name,
-                                                 bool is_attribute)
-{
-    boost::optional<std::string> str;
-    if (is_attribute)
-    {
-        str = node.get_optional<std::string>( std::string("<xmlattr>.") + name);
-    }
-    else
-    {
-        str = node.get_optional<std::string>(name + ".<xmltext>");
-    }
-
-    boost::optional<color> result;
-    if ( str )
-    {
-        try
-        {
-            result = mapnik::color_factory::from_string((*str).c_str());
-        }
-        catch (...)
-        {
-            throw config_error(std::string("Failed to parse ") +
-                               (is_attribute ? "attribute" : "child node") + " '" +
-                               name + "'. Expected " + name_trait<color>::name() +
-                               " but got '" + *str + "'");
-        }
-    }
-
-    return result;
-}
-
-static inline bool has_child(boost::property_tree::ptree const& node, std::string const& name)
-{
-    boost::optional<std::string> str = node.get_optional<std::string>(name);
-    return str;
-}
-
 } // end of namespace mapnik
 
 #endif // MAPNIK_PTREE_HELPERS_HPP
diff --git a/include/mapnik/xml_tree.hpp b/include/mapnik/xml_tree.hpp
index 534228e79..40406382c 100644
--- a/include/mapnik/xml_tree.hpp
+++ b/include/mapnik/xml_tree.hpp
@@ -23,6 +23,10 @@
 #ifndef MAPNIK_XML_TREE_H
 #define MAPNIK_XML_TREE_H
 
+//mapnik
+#include <mapnik/boolean.hpp>
+
+
 //boost
 #include <boost/optional.hpp>
 
diff --git a/plugins/input/csv/csv_datasource.cpp b/plugins/input/csv/csv_datasource.cpp
index b2848509f..8aa04b667 100644
--- a/plugins/input/csv/csv_datasource.cpp
+++ b/plugins/input/csv/csv_datasource.cpp
@@ -14,7 +14,8 @@
 #include <mapnik/memory_featureset.hpp>
 #include <mapnik/wkt/wkt_factory.hpp>
 #include <mapnik/util/geometry_to_ds_type.hpp>
-#include <mapnik/ptree_helpers.hpp>  // mapnik::boolean
+#include <mapnik/boolean.hpp>
+#include <mapnik/color_factory.hpp>
 
 // stl
 #include <sstream>
diff --git a/plugins/input/gdal/gdal_datasource.cpp b/plugins/input/gdal/gdal_datasource.cpp
index a19842413..1bdf85ce1 100644
--- a/plugins/input/gdal/gdal_datasource.cpp
+++ b/plugins/input/gdal/gdal_datasource.cpp
@@ -25,7 +25,7 @@
 #include "gdal_featureset.hpp"
 
 // mapnik
-#include <mapnik/ptree_helpers.hpp>
+#include <mapnik/boolean.hpp>
 #include <mapnik/geom_util.hpp>
 
 #include <gdal_version.h>
diff --git a/plugins/input/geos/geos_datasource.cpp b/plugins/input/geos/geos_datasource.cpp
index 9fcc8c4ab..ddf649ede 100644
--- a/plugins/input/geos/geos_datasource.cpp
+++ b/plugins/input/geos/geos_datasource.cpp
@@ -30,7 +30,7 @@
 #include <cstdarg>
 
 // mapnik
-#include <mapnik/ptree_helpers.hpp>
+#include <mapnik/boolean.hpp>
 #include <mapnik/geom_util.hpp>
 
 // boost
diff --git a/plugins/input/kismet/kismet_datasource.cpp b/plugins/input/kismet/kismet_datasource.cpp
index 7780b078d..00f604789 100644
--- a/plugins/input/kismet/kismet_datasource.cpp
+++ b/plugins/input/kismet/kismet_datasource.cpp
@@ -33,7 +33,7 @@
 #include <cstdio>
 
 // mapnik
-#include <mapnik/ptree_helpers.hpp>
+#include <mapnik/boolean.hpp>
 
 // boost
 #include <boost/algorithm/string.hpp>
diff --git a/plugins/input/occi/occi_datasource.cpp b/plugins/input/occi/occi_datasource.cpp
index b99698d22..e4d3fa4a3 100644
--- a/plugins/input/occi/occi_datasource.cpp
+++ b/plugins/input/occi/occi_datasource.cpp
@@ -25,7 +25,7 @@
 #include "occi_featureset.hpp"
 
 // mapnik
-#include <mapnik/ptree_helpers.hpp>
+#include <mapnik/boolean.hpp>
 #include <mapnik/sql_utils.hpp>
 
 // boost
diff --git a/plugins/input/ogr/ogr_datasource.cpp b/plugins/input/ogr/ogr_datasource.cpp
index 0e6035a3c..da404cbb9 100644
--- a/plugins/input/ogr/ogr_datasource.cpp
+++ b/plugins/input/ogr/ogr_datasource.cpp
@@ -33,7 +33,7 @@
 #include <gdal_version.h>
 
 // mapnik
-#include <mapnik/ptree_helpers.hpp>
+#include <mapnik/boolean.hpp>
 #include <mapnik/geom_util.hpp>
 
 // boost
diff --git a/plugins/input/postgis/postgis_datasource.cpp b/plugins/input/postgis/postgis_datasource.cpp
index 0c5f083e8..26c2b9074 100644
--- a/plugins/input/postgis/postgis_datasource.cpp
+++ b/plugins/input/postgis/postgis_datasource.cpp
@@ -26,7 +26,7 @@
 
 // mapnik
 #include <mapnik/global.hpp>
-#include <mapnik/ptree_helpers.hpp>
+#include <mapnik/boolean.hpp>
 #include <mapnik/sql_utils.hpp>
 #include <mapnik/util/conversions.hpp>
 
diff --git a/plugins/input/rasterlite/rasterlite_datasource.cpp b/plugins/input/rasterlite/rasterlite_datasource.cpp
index e9cd0bf69..ac609f357 100644
--- a/plugins/input/rasterlite/rasterlite_datasource.cpp
+++ b/plugins/input/rasterlite/rasterlite_datasource.cpp
@@ -29,7 +29,7 @@
 #include <boost/make_shared.hpp>
 
 // mapnik
-#include <mapnik/ptree_helpers.hpp>
+#include <mapnik/boolean.hpp>
 #include <mapnik/geom_util.hpp>
 
 using mapnik::datasource;
diff --git a/plugins/input/sqlite/sqlite_datasource.cpp b/plugins/input/sqlite/sqlite_datasource.cpp
index 02e184d3a..77015ef82 100644
--- a/plugins/input/sqlite/sqlite_datasource.cpp
+++ b/plugins/input/sqlite/sqlite_datasource.cpp
@@ -26,7 +26,7 @@
 #include "sqlite_utils.hpp"
 
 // mapnik
-#include <mapnik/ptree_helpers.hpp>
+#include <mapnik/boolean.hpp>
 #include <mapnik/sql_utils.hpp>
 #include <mapnik/util/geometry_to_ds_type.hpp>
 #include <mapnik/wkb.hpp>
diff --git a/src/formatting/text.cpp b/src/formatting/text.cpp
index 0be312501..a65285200 100644
--- a/src/formatting/text.cpp
+++ b/src/formatting/text.cpp
@@ -45,7 +45,7 @@ void text_node::to_xml(ptree &xml) const
 
 node_ptr text_node::from_xml(xml_node const& xml)
 {
-    std::string data = xml.get_text();
+    std::string data = xml.text();
     if (data.empty()) return node_ptr(); //No text
     return node_ptr(new text_node(parse_expression(data, "utf8")));
 }
diff --git a/src/xml_tree.cpp b/src/xml_tree.cpp
index 415107da8..2ba5ff709 100644
--- a/src/xml_tree.cpp
+++ b/src/xml_tree.cpp
@@ -27,6 +27,8 @@
 #include <mapnik/color_factory.hpp>
 #include <mapnik/gamma_method.hpp>
 #include <mapnik/line_symbolizer.hpp>
+#include <mapnik/feature_type_style.hpp>
+#include <mapnik/text_properties.hpp>
 
 //boost
 #include <boost/lexical_cast.hpp>
@@ -79,6 +81,11 @@ inline boost::optional<color> fast_cast(xml_tree const& tree, std::string const&
     return mapnik::color_factory::from_string(value);
 }
 
+template <>
+inline boost::optional<expression_ptr> fast_cast(xml_tree const& tree, std::string const& value)
+{
+    return parse_expression(value);
+}
 
 /****************************************************************************/
 
@@ -112,6 +119,7 @@ DEFINE_NAME_TRAIT( boolean, "boolean")
 DEFINE_NAME_TRAIT( int, "integer" )
 DEFINE_NAME_TRAIT( std::string, "string" )
 DEFINE_NAME_TRAIT( color, "color" )
+DEFINE_NAME_TRAIT(expression_ptr, "expression_ptr" )
 
 template <typename ENUM, int MAX>
 struct name_trait< mapnik::enumeration<ENUM, MAX> >
@@ -376,19 +384,21 @@ std::string xml_node::get_text() const
 template <typename T>
 T xml_node::get_value() const
 {
-    boost::optional<T> result = fast_cast<T>(get_text());
+    boost::optional<T> result = fast_cast<T>(tree_, get_text());
     if (!result)
     {
         throw config_error(std::string("Failed to parse value in node '") +
                            name_ + "'. Expected " + name_trait<T>::name() +
                            " but got '" + get_text() + "'");
     }
-    return result;
+    return *result;
 }
 
 #define compile_get_opt_attr(T) template boost::optional<T> xml_node::get_opt_attr<T>(std::string const&) const
+#define compile_get_attr(T) template T xml_node::get_attr<T>(std::string const&) const; template T xml_node::get_attr<T>(std::string const&, T const&) const
+#define compile_get_value(T) template T xml_node::get_value<T>() const
 
-//compile_get_opt_attr(boolean);
+compile_get_opt_attr(boolean);
 compile_get_opt_attr(std::string);
 compile_get_opt_attr(unsigned);
 compile_get_opt_attr(float);
@@ -396,4 +406,23 @@ compile_get_opt_attr(double);
 compile_get_opt_attr(color);
 compile_get_opt_attr(gamma_method_e);
 compile_get_opt_attr(line_rasterizer_e);
+compile_get_opt_attr(line_join_e);
+compile_get_opt_attr(line_cap_e);
+compile_get_opt_attr(text_transform_e);
+compile_get_opt_attr(label_placement_e);
+compile_get_opt_attr(vertical_alignment_e);
+compile_get_opt_attr(horizontal_alignment_e);
+compile_get_opt_attr(justify_alignment_e);
+compile_get_attr(std::string);
+compile_get_attr(filter_mode_e);
+compile_get_attr(point_placement_e);
+compile_get_attr(marker_placement_e);
+compile_get_attr(marker_type_e);
+compile_get_attr(pattern_alignment_e);
+compile_get_attr(line_rasterizer_e);
+compile_get_attr(colorizer_mode);
+compile_get_attr(double);
+compile_get_value(int);
+compile_get_value(double);
+compile_get_value(expression_ptr);
 } //ns mapnik