Simplify.h

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#ifndef AMPGEN_SIMPLIFY_H
#define AMPGEN_SIMPLIFY_H 1
#include <complex>
#include <string>
#include <utility>
#include <vector>
 
#include "AmpGen/Expression.h"
 
namespace AmpGen {
  Expression Simplify(const Expression &expression);
 
  class NormalOrderedExpression {
  public:
    struct Term {
      std::complex<double> m_prefactor;
      std::vector<std::pair<Expression, std::string>> m_terms;
      Expression m_divisor;
      std::string m_expressionAsString;
      bool m_markForRemoval;
      void addExpression(const Expression &expression);
      Term(const Expression &expression);
      operator Expression();
    };
    void addTerm(const Expression &expression);
    NormalOrderedExpression(const Expression &expression, const bool &expandSubTrees = false);
    void groupExpressions();
 
    operator Expression();
    std::vector<Expression> ExpandBrackets(const Expression &expression);
    std::vector<Term> terms() const { return m_terms; }
 
  private:
    std::vector<Term> m_terms;
    bool m_expandSubTrees;
  };
}
 
#endif