FileReaderBaseImpl.h

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#ifndef ZYPP_PARSER_YUM_FILEREADERBASEIMPL_H_
#define ZYPP_PARSER_YUM_FILEREADERBASEIMPL_H_

#include "zypp/data/ResolvableData.h"
#include "zypp/parser/xml/Reader.h"

#include "zypp/parser/yum/FileReaderBase.h"

namespace zypp
{
  namespace parser
  {
    namespace yum
    {


  class FileReaderBase::BaseImpl : private base::NonCopyable
  {
  public:

    enum Tag
    {
      tag_NONE,
      tag_package,
      tag_format,
      tag_patch,
      tag_atoms,
      tag_script,
      tag_message,
      tag_pkgfiles,
      tag_deltarpm,
      tag_patchrpm,
      tag_pattern,
      tag_product
    };

    struct TagPath
    {
      typedef std::list<Tag> TagList;
      
      void append(const Tag tag) { path.push_back(tag); }
      void remove() { if (!path.empty()) path.pop_back(); }
      unsigned depth() const { return path.size(); }
      Tag currentTag() const
      {
        if (!path.empty()) return path.back();
        return tag_NONE;
      }
      bool contains(const Tag tag) const
      {
        TagList::const_iterator result = find(path.begin(), path.end(), tag);
        return result != path.end();
      }
      std::string asString();

      TagList path;
    };


  public:
    BaseImpl();

    bool consumePackageNode(xml::Reader & reader_r, data::Packagebase_Ptr & package_ptr);

    bool consumeFormatNode(xml::Reader & reader_r, data::Packagebase_Ptr & package_ptr);

    bool consumeDependency(xml::Reader & reader_r, data::Dependencies & deps_r);


  public:
    void tag(const Tag tag) { _tagpath.append(tag); }

    bool isBeingProcessed(Tag tag) const { return _tagpath.contains(tag); }

    void toParentTag() { _tagpath.remove(); }

    const TagPath & tagPath() const { return _tagpath; }


  private:
    TagPath _tagpath;

    bool _expect_rpm_entry;

    Dep _dtype;
  };


    } // ns yum
  } // ns parser
} // ns zypp

#endif /*ZYPP_PARSER_YUM_FILEREADERBASEIMPL_H_*/

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