bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtMTree.hh

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#ifndef __EVTMTREE_HH__
#define __EVTMTREE_HH__
 
#include "EvtGenBase/EvtPDL.hh"
#include "EvtGenBase/EvtSpinAmp.hh"
#include "EvtGenBase/EvtComplex.hh"
#include "EvtGenBase/EvtVector4R.hh"
 
#include "EvtGenBase/EvtMNode.hh"
#include "EvtGenBase/EvtMParticle.hh"
#include "EvtGenBase/EvtMRes.hh"
 
#include <vector>
using std::vector;
 
#include <string>
using std::string;
 
typedef string::const_iterator ptype;
 
class EvtMTree {
    
    public:
 
        EvtMTree( const EvtId * idtbl, int ndaug ); 
        ~EvtMTree( );
 
        // return the invariant amplitude of the entire tree
        EvtSpinAmp amplitude( const vector<EvtVector4R>&
                product) const;
 
        // add a decay tree to the list of trees that we posess
        void addtree( const string& args );
 
    private:
        
        vector< EvtMNode * > _root;
        vector<string> _lbltbl;
        double _norm;
 
        bool parsecheck( char arg, const string& chars );
        void parseerror( bool, ptype&, ptype&, ptype& );
        
        string parseId( ptype&, ptype&, ptype& );
        string parseKey( ptype&, ptype&, ptype& );
        vector<string> parseArg( ptype&, ptype&, ptype& );
        vector<EvtComplex> parseAmps( ptype&, ptype&, ptype& );
        vector<EvtMNode *> duplicate( const vector<EvtMNode *>& ) const;
        vector<vector<EvtMNode * > > unionChildren( const string&,
                vector<vector<EvtMNode * > >&  );
        vector<vector<EvtMNode * > > parseChildren( ptype&, ptype&, ptype& );
        vector<EvtMNode *> parsenode( const string& , bool );
        bool validTree( const EvtMNode * ) const;
        
        vector<EvtMNode *> makeparticles( const string& );
        EvtMRes * makeresonance( const EvtId&, const string &,
                const vector<string>&, const string& , 
                const vector<EvtComplex>& , const vector<EvtMNode * >& ); 
 
};
 
#endif