mirror of
https://github.com/jezhiggins/arabica
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73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
#ifndef ARABICA_XSLT_KEY_HANDLER_HPP
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#define ARABICA_XSLT_KEY_HANDLER_HPP
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#include "../xslt_key.hpp"
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#include <XML/XMLCharacterClasses.hpp>
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namespace Arabica
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{
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namespace XSLT
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{
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template<class string_type, class string_adaptor>
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class KeyHandler : public SAX::DefaultHandler<string_type, string_adaptor>
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{
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typedef typename Key<string_type, string_adaptor>::MatchExprList MatchExprList;
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public:
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KeyHandler(CompilationContext<string_type, string_adaptor>& context) :
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context_(context),
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key_(0)
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{
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} // KeyHandler
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virtual void startElement(const string_type& /* namespaceURI */,
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const string_type& /* localName */,
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const string_type& qName,
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const SAX::Attributes<string_type, string_adaptor>& atts)
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{
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if(key_ != 0)
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throw SAX::SAXException(qName + " can not contain elements");
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static const ValueRule rules[] = { { "name", true, 0, 0 },
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{ "match", true, 0, 0 },
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{ "use", true, 0, 0 },
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{ 0, false, 0, 0 } };
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std::map<string_type, string_type> attrs = gatherAttributes(qName, atts, rules);
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name_ = context_.processInternalQName(attrs["name"]).clarkName();
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try
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{
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MatchExprList matches = context_.xpath_match_no_variables(attrs["match"]);
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Arabica::XPath::XPathExpression<string_type, string_adaptor> use = context_.xpath_expression_no_variables(attrs["use"]);
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key_ = new Key<string_type, string_adaptor>(matches, use);
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} // try
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catch(const Arabica::XPath::UnboundVariableException&)
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{
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throw SAX::SAXException("Variable references are not allowed in xsl:key match and use expressions");
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} // catch
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} // startElement
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virtual void endElement(const string_type& /* namespaceURI */,
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const string_type& /* localName */,
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const string_type& /* qName */)
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{
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context_.stylesheet().add_key(name_, key_);
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context_.pop();
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} // endElement
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virtual void characters(const string_type& ch)
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{
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verifyNoCharacterData(ch, "xsl:key");
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} // characters
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private:
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CompilationContext<string_type, string_adaptor>& context_;
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string_type name_;
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Key<string_type, string_adaptor>* key_;
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}; // class KeyHandler
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} // namespace XSLT
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} // namespace Arabica
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#endif
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