arabica/include/XSLT/impl/handler/xslt_apply_templates_handler.hpp
2012-11-15 22:03:42 +00:00

105 lines
3.4 KiB
C++

#ifndef ARABICA_XSLT_APPLY_TEMPLATES_HANDLER_HPP
#define ARABICA_XSLT_APPLY_TEMPLATES_HANDLER_HPP
#include "../xslt_apply_templates.hpp"
#include "xslt_sort_handler.hpp"
#include "xslt_with_param_handler.hpp"
namespace Arabica
{
namespace XSLT
{
template<class stringT, class adaptorT>
class ApplyTemplatesHandler : public SAX::DefaultHandler<stringT, adaptorT>
{
typedef StylesheetConstant<stringT, adaptorT> SC;
typedef AttributeValidators<stringT, adaptorT> AV;
public:
typedef stringT string_type;
typedef adaptorT string_adaptor;
ApplyTemplatesHandler(CompilationContext<string_type, string_adaptor>& context) :
context_(context),
applyTemplates_(0)
{
} // ApplyTemplatesHandler
virtual void startElement(const string_type& namespaceURI,
const string_type& localName,
const string_type& qName,
const SAX::Attributes<string_type, string_adaptor>& atts)
{
if(applyTemplates_ == 0)
{
static const AV rules = AV::rule(SC::select, false)
.rule(SC::mode, false);
std::map<string_type, string_type> attrs = rules.gather(qName, atts);
const string_type& select = attrs[SC::select];
Arabica::XPath::XPathExpressionPtr<string_type, string_adaptor> xpath;
if(select != string_adaptor::empty_string())
xpath = context_.xpath_expression(select);
string_type mode;
if(attrs[SC::mode] != string_adaptor::empty_string())
mode = context_.processInternalQName(attrs[SC::mode]).clarkName();
applyTemplates_ = new ApplyTemplates<string_type, string_adaptor>(xpath, mode);
return;
} // if(applyTemplates_ == 0)
if(namespaceURI == StylesheetConstant<string_type, string_adaptor>::NamespaceURI)
{
if(localName == SC::sort)
{
context_.push(0,
new SortHandler<string_type, string_adaptor>(context_, *applyTemplates_),
namespaceURI,
localName,
qName,
atts);
return;
} // if(localName == "sort")
if(localName == SC::with_param)
{
context_.push(0,
new WithParamHandler<string_type, string_adaptor>(context_, *applyTemplates_),
namespaceURI,
localName,
qName,
atts);
return;
} // if(localName == "sort")
} // if ...
throw SAX::SAXException("xsl:apply-templates can only contain xsl:sort and xsl:with-param elements.");
} // startElement
virtual void endElement(const string_type& /* namespaceURI */,
const string_type& /* localName */,
const string_type& /* qName */)
{
context_.parentContainer().add_item(applyTemplates_);
context_.pop();
} // endElement
virtual void characters(const string_type& ch)
{
verifyNoCharacterData<string_type, string_adaptor>(ch, SC::apply_templates);
} // characters
private:
CompilationContext<string_type>& context_;
ApplyTemplates<string_type, string_adaptor>* applyTemplates_;
}; // class ApplyTemplatesHandler
} // namespace XSLT
} // namespace Arabica
#endif // ARABICA_XSLT_APPLY_TEMPLATES_HANDLER_HPP