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#ifndef X2C_PARSE_HXX
#define X2C_PARSE_HXX



// USED SERVICES
    // BASE CLASSES
    // COMPONENTS
#include "filebuff.hxx"
#include "../support/sistr.hxx"
#include "../support/list.hxx"
    // PARAMETERS


class XmlElement;
class ListElement;

class X2CParser
{
  public:
    typedef XmlElement * (*F_CREATE)(const Simstr &);

                        X2CParser(
                            XmlElement &		o_rDocumentData );
                        ~X2CParser();

    bool			 	LoadFile(
                            const char *		i_sFilename );
    void                Parse();
    bool                Parse(
                            const char *		i_sFilename );


    const char *		PureText() const		{ return aFile.operator const char*(); }

    void				Parse_Sequence(
                           DynamicList<XmlElement> &
                                                o_rElements,
                           const Simstr &		i_sElementName );
    void				Parse_FreeChoice(
                            DynamicList<XmlElement> &
                                                o_rElements );
    void				Parse_List(
                            ListElement &		o_rListElem );
    void                Parse_Text(
                            Simstr &			o_sText,
                            const Simstr &		i_sElementName,
                            bool				i_bReverseName );
    void                Parse_MultipleText(
                            List<Simstr> &	    o_rTexts,
                            const Simstr &		i_sElementName,
                            bool				i_bReverseName );
    void                Parse_SglAttr(
                            Simstr &			o_sAttrValue,
                            const Simstr &		i_sElementName,
                            const Simstr &		i_sAttrName );
    void                Parse_MultipleAttr(
                            List<Simstr> &		o_rAttrValues,
                            const Simstr &		i_sElementName,
                            const List<Simstr> &
                                                i_rAttrNames );

  private:
    void				Parse_XmlDeclaration();
    void				Parse_Doctype();

    void				Get_Attribute(
                            Simstr &			o_rAttrValue,
                            Simstr &			o_rAttrName );
    bool				IsText(
                            const char *		i_sComparedText );
    bool				IsBeginTag(
                            const char *		i_sTagName );
    bool				IsEndTag(
                            const char *		i_sTagName );
    void				Goto(
                            char				i_cNext );
    void				Goto_And_Pass(
                            char				i_cNext );
    void				Move(
                            int					i_nForward );
    void				Pass_White();
    void				GetTextTill(
                            Simstr & 			o_rText,
                            char				i_cEnd,
                            bool                i_bReverseName = false );
    /// @return false in case of empty tag with no attributes.
    bool				CheckAndPassBeginTag(
                            const char *		i_sElementName );
    void				CheckAndPassEndTag(
                            const char *		i_sElementName );
    /// @precond IsBeginTag() == true.
    bool                IsAbsoluteEmpty() const;


    void				SyntaxError(
                            const char *		i_sText );
    void				TestCurChar();

    // DATA
    Simstr				sFileName;
    unsigned			nFileLine;

    Buffer 				aFile;
    XmlElement *		pDocumentData;

    char                sWord[8192];
    const char *        text;
};



// IMPLEMENTATION

#endif

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