mirror of
https://github.com/jezhiggins/arabica
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81 lines
3 KiB
C++
81 lines
3 KiB
C++
#ifndef ARABICA_XSLT_NAMESPACE_ALIAS_HANDLER_HPP
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#define ARABICA_XSLT_NAMESPACE_ALIAS_HANDLER_HPP
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#include <XML/XMLCharacterClasses.hpp>
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#include "xslt_constants.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 NamespaceAliasHandler : public SAX::DefaultHandler<string_type, string_adaptor>
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{
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typedef StylesheetConstant<string_type, string_adaptor> SC;
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typedef AttributeValidators<string_type, string_adaptor> AV;
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public:
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NamespaceAliasHandler(CompilationContext<string_type, string_adaptor>& context) :
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context_(context),
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done_(false)
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{
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} // NamespaceAliasHandler
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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(!done_)
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{
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static const AV rules = AV::rule(SC::stylesheet_prefix, true)
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.rule(SC::result_prefix, true);
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std::map<string_type, string_type> attrs = rules.gather(qName, atts);
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string_type stylesheet_prefix = attrs[SC::stylesheet_prefix];
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string_type result_prefix = attrs[SC::result_prefix];
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if(stylesheet_prefix == SC::hash_default)
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stylesheet_prefix = string_adaptor::empty_string();
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if(result_prefix == SC::hash_default)
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result_prefix = string_adaptor::empty_string();
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std::map<string_type, string_type> namespaces = context_.inScopeNamespaces();
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if((namespaces.find(stylesheet_prefix) == namespaces.end()) &&
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(!string_adaptor::empty(stylesheet_prefix)))
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throw SAX::SAXException(string_adaptor::asStdString(SC::namespace_alias) + " " + string_adaptor::asStdString(stylesheet_prefix) + " is not a declared namespace prefix");
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if((namespaces.find(result_prefix) == namespaces.end()) &&
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(!string_adaptor::empty(result_prefix)))
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throw SAX::SAXException(string_adaptor::asStdString(SC::namespace_alias) + " " + string_adaptor::asStdString(result_prefix) + " is not a declared namespace prefix");
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context_.addNamespaceAlias(namespaces[stylesheet_prefix], result_prefix, namespaces[result_prefix]);
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return;
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} // if(!done_)
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throw SAX::SAXException(string_adaptor::asStdString(qName) + " can not contain elements");
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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_.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<string_type, string_adaptor>(ch, SC::namespace_alias);
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} // characters
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private:
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CompilationContext<string_type, string_adaptor>& context_;
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bool done_;
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}; // class NamespaceAliasHandler
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} //namespace XSLT
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} //namespace Arabica
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#endif
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