2 files changed, 45 insertions, 3 deletions
diff --git a/lib/Tree/Template/Declare.pm b/lib/Tree/Template/Declare.pm
index 9778f42..a2be8e2 100644
--- a/lib/Tree/Template/Declare.pm
+++ b/lib/Tree/Template/Declare.pm
@@ -45,6 +45,11 @@ sub _build_group {
         }
     }
 
+    my $additional_exports={};
+    if ($builder->can('_additional_exports')) {
+        $additional_exports=$builder->_additional_exports();
+    }
+
     my @current_node=(undef);
 
     return {
@@ -76,6 +81,7 @@ sub _build_group {
             $builder->set_node_attributes($current_node[0],\%attrs);
             return;
         },
+        %$additional_exports,
     };
 }
 
diff --git a/lib/Tree/Template/Declare/LibXML.pm b/lib/Tree/Template/Declare/LibXML.pm
index 7be3fe8..f8c0e01 100644
--- a/lib/Tree/Template/Declare/LibXML.pm
+++ b/lib/Tree/Template/Declare/LibXML.pm
@@ -7,7 +7,18 @@ use XML::LibXML;
 sub new {
     my ($class)=@_;
 
-    return bless {},$class;
+    return bless {ns=>{':default'=>undef}},$class;
+}
+
+sub _additional_exports {
+    my ($self)=@_;
+
+    return {
+        xmlns => sub($$) {
+            $self->{ns}->{$_[0]}=$_[1];
+            return;
+        },
+    };
 }
 
 sub new_tree {
@@ -22,6 +33,21 @@ sub finalize_tree {
     return $tree;
 }
 
+sub _get_ns {
+    my ($self,$name)=@_;
+
+    my ($prefix)=($name=~m{\A (.*?) : }smx);
+
+    if (!defined($prefix) or length($prefix)==0) {
+        return '',$self->{ns}->{':default'};
+    }
+
+    if (exists $self->{ns}->{$prefix}) {
+        return $prefix, $self->{ns}->{$prefix};
+    }
+    return;
+}
+
 sub new_node {
     my ($self)=@_;
 
@@ -46,14 +72,24 @@ sub add_child_node {
 sub set_node_name {
     my ($self,$node,$name)=@_;
 
-    return $node->setNodeName($name);
+    $node->setNodeName($name);
+    my ($prefix,$uri)=$self->_get_ns($name);
+    if ($uri) {
+        $node->setNamespace($uri,$prefix,1);
+    }
 }
 
 sub set_node_attributes {
     my ($self,$node,$attrs)=@_;
 
     while (my ($name,$val)=each %$attrs) {
-        $node->setAttribute($name, $val);
+        my ($prefix,$uri)=$self->_get_ns($name);
+        if ($prefix and $uri) {
+            $node->setAttributeNS($uri, $name, $val);
+        }
+        else {
+            $node->setAttribute($name, $val);
+        }
     }
     return;
 }