arabica/include/XSLT/impl/handler/xslt_output_handler.hpp
2010-05-19 20:22:22 +01:00

87 lines
3 KiB
C++

#ifndef ARABICA_XSLT_OUTPUT_HANDLER_HPP
#define ARABICA_XSLT_OUTPUT_HANDLER_HPP
namespace Arabica
{
namespace XSLT
{
class OutputHandler : public SAX::DefaultHandler<std::string>
{
public:
OutputHandler(CompilationContext& context) :
context_(context)
{
} // OutputHandler
virtual void startElement(const std::string& /* namespaceURI */,
const std::string& /* localName */,
const std::string& qName,
const SAX::Attributes<std::string>& atts)
{
if(settings_.empty())
{
static const char* AllowedMethods[] = { "xml", "html", "text", 0 };
static const ValueRule rules[] = { { "method", false, "xml", AllowedMethods },
{ "version", false, "1.0", 0 },
{ "encoding", false, "UTF-8", 0 },
{ "omit-xml-declaration", false, No, AllowedYesNo },
{ "standalone", false, "", AllowedYesNo },
{ "doctype-public", false, "", 0},
{ "doctype-system", false, "", 0},
{ "cdata-section-elements", false, "", 0},
{ "indent", false, No, AllowedYesNo },
{ "media-type", false, "", 0 },
{ 0, false, 0, 0 } };
settings_ = gatherAttributes(qName, atts, rules);
cdataElements_ = extractCDATAElements(settings_["cdata-section-elements"]);
return;
} // if(settings_ == 0)
throw SAX::SAXException(qName + " can not contain elements");
} // startElement
virtual void endElement(const std::string& /* namespaceURI */,
const std::string& /* localName */,
const std::string& /* qName */)
{
context_.stylesheet().output_settings(settings_, cdataElements_);
context_.pop();
} // endElement
virtual void characters(const std::string& ch)
{
verifyNoCharacterData(ch, "xsl:output");
} // characters
private:
Output::CDATAElements extractCDATAElements(const std::string& cdata_section_elements) const
{
Output::CDATAElements elements;
if(cdata_section_elements.empty())
return elements;
std::istringstream is(text::normalize_whitespace<std::string, Arabica::default_string_adaptor<std::string> >(cdata_section_elements));
while(!is.eof())
{
std::string e;
is >> e;
XML::QualifiedName<std::string> qualifiedName = context_.processElementQName(e);
elements.insert(QName::create(qualifiedName));
} // while
return elements;
} // extractCDATAElements
CompilationContext& context_;
Output::Settings settings_;
Output::CDATAElements cdataElements_;
}; // class OutputHandler
} // namespace XSLT
} // namespace Arabica
#endif