OW_XMLParserCore.hpp

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#ifndef OW_XMLPARSERCORE_HPP_INCLUDE_GUARD_
#define OW_XMLPARSERCORE_HPP_INCLUDE_GUARD_
#include "OW_config.h"
#include "OW_String.hpp"
#include "OW_StringBuffer.hpp"
#include "OW_IstreamBufIterator.hpp"
#include <stack>
#include <iosfwd>

namespace OW_NAMESPACE
{

struct OW_XML_API XMLToken
{
   XMLToken() : type(INVALID), text(8096), attributeCount(0)
   {}
   enum XMLType
   {
      INVALID,
      XML_DECLARATION,
      START_TAG,
      END_TAG,
      COMMENT,
      CDATA,
      DOCTYPE,
      CONTENT
   };
   struct OW_XML_API Attribute
   {
      Attribute(): name(64), value(512)
      {
      }
      StringBuffer name;
      StringBuffer value;
   };
   enum { MAX_ATTRIBUTES = 10 };
   XMLType type;
   StringBuffer text;
   Attribute attributes[MAX_ATTRIBUTES];
   unsigned int attributeCount;
};

class OW_XML_API XMLParserCore
{
public:
   XMLParserCore(std::istream& input) : m_line(1), m_current(), m_foundRoot(false), m_tagIsEmpty(false)
   {
      setInput(input);
   }
   XMLParserCore(): m_line(1), m_current(), m_foundRoot(false), m_tagIsEmpty(false)
   {
   }
   ~XMLParserCore()
   {
   }
   void setInput(std::istream& input)
   {
      m_current = IstreamBufIterator(input);
   }
   bool next(XMLToken& entry);
   unsigned int getLine() const
   {
      return m_line;
   }
private:
   void skipWhitespace();
   bool getElementName(XMLToken& entry);
   bool getOpenElementName(XMLToken& entry, bool& openCloseElement);
   void getAttributeNameAndEqual(XMLToken::Attribute& att);
   void getAttributeValue(XMLToken::Attribute& att);
   void getComment();
   void getCData(XMLToken& entry);
   void getDocType();
   void getContent(XMLToken& entry);
   void getElement(XMLToken& entry);

#ifdef OW_WIN32
#pragma warning (push)
#pragma warning (disable: 4251)
#endif

   unsigned int m_line;
   IstreamBufIterator m_current;


   // used to verify elements' begin and end tags match.
   std::stack<String> m_stack;
   bool m_foundRoot;
   bool m_tagIsEmpty;

#ifdef OW_WIN32
#pragma warning (pop)
#endif

};

} // end namespace OW_NAMESPACE

#endif

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