grapheme_segment.hpp

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#if !defined(TETENGO_TEXT_GRAPHEMESPLITTING_GRAPHEMESEGMENT_HPP)
#define TETENGO_TEXT_GRAPHEMESPLITTING_GRAPHEMESEGMENT_HPP
 
#include <cstddef>
#include <memory>
#include <vector>
 
#include <boost/core/noncopyable.hpp>
 
 
namespace tetengo::text::grapheme_splitting
{
    class grapheme_segment : private boost::noncopyable
    {
    public:
        // types

        enum class break_property_type
        {
            cr, 
            lf, 
            control, 
            extend, 
            zwj, 
            regional, 
            prepend, 
            spacing_mark, 
            l, 
            v, 
            t, 
            lv, 
            lvt, 
            other, 
        };
 
 
        // static functions

        static const grapheme_segment& instance();
 
 
        // constructors and destructor

        ~grapheme_segment();
 
 
        // functions

        std::vector<std::size_t> segment_offsets(const std::vector<break_property_type>& break_properties) const;
 
 
    private:
        // types
 
        class impl;
 
 
        // variables
 
        const std::unique_ptr<impl> m_p_impl;
 
 
        // constructors
 
        grapheme_segment();
    };
 
 
}
 
 
#endif