arabica/include/XSLT/impl/xslt_variable_impl.hpp
Jez Higgins efcb81b80c sink
2012-11-06 19:29:22 +00:00

61 lines
1.8 KiB
C++

#ifndef ARABICA_XSLT_VARIABLE_IMPL_HPP
#define ARABICA_XSLT_VARIABLE_IMPL_HPP
#include <XPath/XPath.hpp>
#include <memory>
#include "xslt_item.hpp"
#include "xslt_execution_context.hpp"
namespace Arabica
{
namespace XSLT
{
class Variable_impl : public ItemContainer, public Variable_declaration
{
protected:
Variable_impl(const std::string& name,
const Arabica::XPath::XPathExpressionPtr<std::string>& select,
const Precedence& precedence) :
name_(name),
select_(select),
precedence_(precedence)
{
} // Variable_impl
virtual ~Variable_impl() { }
public:
virtual const std::string& name() const { return name_; }
virtual Arabica::XPath::XPathValue<std::string> value(const DOM::Node<std::string>& node,
ExecutionContext& context,
DOMSink<std::string>& sink) const
{
if(select_)
return select_->evaluate(node, context.xpathContext());
execute_children(node, context);
if(sink.node() == 0)
return Arabica::XPath::StringValue<std::string, Arabica::default_string_adaptor<std::string> >::createValue("");
Arabica::XPath::NodeSet<std::string> nodeset;
for(DOM::Node<std::string> n = sink.node().getFirstChild(); n != 0; n = n.getNextSibling())
nodeset.push_back(n);
return Arabica::XPath::NodeSetValue<std::string, Arabica::default_string_adaptor<std::string> >::createValue(nodeset);
} // value
virtual const Precedence& precedence() const { return precedence_; }
private:
std::string name_;
Arabica::XPath::XPathExpressionPtr<std::string> select_;
Precedence precedence_;
}; // Variable_impl
} // namespace XSLT
} // namespace Arabica
#endif // ARABICA_XSLT_VARIABLE_IMPL_HPP