Indices.hh

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#pragma once
 
#include "Props.hh"
 
namespace cadabra {
 
    class Indices : public list_property {
        public:
            Indices(); //const std::string& parent="");
            virtual bool parse(Kernel&, std::shared_ptr<Ex>, keyval_t&) override;
            virtual std::string name() const override;
            virtual std::string unnamed_argument() const override
                {
                return "name";
                };
            virtual match_t equals(const property *) const override;
            virtual void    validate(const Kernel&, const Ex&) const override;
            
            //      virtual void display(std::ostream&) const override;
            virtual void latex(std::ostream&) const override;
 
            std::string set_name, parent_name;
            enum position_t { free=0, fixed=1, independent=2 } position_type;
 
            // List of possible values that indices of this type can take.
            std::vector<Ex> values;
 
        private:
 
            void collect_index_values(Ex::iterator ind_values);
        };
 
    }