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#ifndef FORMULA_FORMULA_HELPER_HXX
#define FORMULA_FORMULA_HELPER_HXX

#include "formula/IFunctionDescription.hxx"
#include <vector>
#include <tools/string.hxx>
#include <memory>
#include "formula/formuladllapi.h"

class SvtSysLocale;
class CharClass;

namespace formula
{
    class FORMULA_DLLPUBLIC FormulaHelper
    {
        ::std::auto_ptr<SvtSysLocale>   m_pSysLocale;
        const CharClass*                m_pCharClass;
        const IFunctionManager*         m_pFunctionManager;
        const sal_Unicode open;
        const sal_Unicode close;
        const sal_Unicode sep;
        const sal_Unicode arrayOpen;
        const sal_Unicode arrayClose;
    public:
        FormulaHelper(const IFunctionManager* _pFunctionManager);

        inline const CharClass* GetCharClass() const { return m_pCharClass; }

        BOOL                GetNextFunc( const String&  rFormula,
                                                 BOOL           bBack,
                                                 xub_StrLen&    rFStart, // Ein- und Ausgabe
                                                 xub_StrLen*    pFEnd = NULL,
                                                 const IFunctionDescription** ppFDesc = NULL,
                                                 ::std::vector< ::rtl::OUString>*      pArgs = NULL ) const;

        xub_StrLen          GetFunctionStart( const String& rFormula, xub_StrLen nStart,
                                                        BOOL bBack, String* pFuncName = NULL ) const;

        xub_StrLen          GetFunctionEnd  ( const String& rFormula, xub_StrLen nStart ) const;

        xub_StrLen          GetArgStart     ( const String& rFormula, xub_StrLen nStart,
                                                      USHORT nArg ) const;

        void                GetArgStrings   ( ::std::vector< ::rtl::OUString >& _rArgs,
                                                      const String& rFormula,
                                                      xub_StrLen    nFuncPos,
                                                      USHORT        nArgs ) const;

        void                FillArgStrings  ( const String& rFormula,
                                                      xub_StrLen    nFuncPos,
                                                      USHORT        nArgs,
                                                      ::std::vector< ::rtl::OUString >&      _rArgs ) const;
    };
// =============================================================================
} // formula
// =============================================================================

#endif //FORMULA_FORMULA_HELPER_HXX

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