text_element_enumerator.h

 
#pragma once
 
#include <system/string.h>
#include <system/details/icu_namespace.h>
 
#include <memory>
 
ASPOSECPP_3RD_PARTY_ICU_NAMESPACE_START {
    ASPOSECPP_3RD_PARTY_CLASS(BreakIterator);
}
 
namespace System { namespace Globalization {
 
class TextElementEnumerator;
typedef SharedPtr<TextElementEnumerator> TextElementEnumeratorPtr;
 
class ASPOSECPP_SHARED_CLASS TextElementEnumerator 
    : public virtual Object
    // , public Collections::IEnumerator (Not implemented)
{
    RTTI_INFO(System::Globalization::TextElementEnumerator, ::System::BaseTypesInfo<System::Object>)
 
    friend class StringInfo;
 
    ASPOSECPP_SHARED_API TextElementEnumerator(const String& str, int start_index = 0, bool use_string_aliasing = false);
    MEMBER_FUNCTION_MAKE_OBJECT(TextElementEnumerator, CODEPORTING_ARGS(const String& str, int start_index = 0, bool use_string_aliasing = false), CODEPORTING_ARGS(str, start_index, use_string_aliasing));
 
public:
    TextElementEnumerator(const TextElementEnumerator&) = delete;
    TextElementEnumerator& operator=(const TextElementEnumerator&) = delete;
 
    ASPOSECPP_SHARED_API SharedPtr<Object> get_Current() const;
    ASPOSECPP_SHARED_API int get_ElementIndex() const;
 
    ASPOSECPP_SHARED_API bool MoveNext();
    ASPOSECPP_SHARED_API String GetTextElement() const;
    ASPOSECPP_SHARED_API void Reset();
 
private:
    enum class State
    { 
        None = 0, 
        Started, 
        Finished 
    };
    
    String m_string;
    const int m_start_index;
    String m_string_slice;
    std::unique_ptr<codeporting_icu::BreakIterator> m_break_iterator;
    State m_state;
    int m_element_position;
 
    int CurrentIteratorPosition() const;
 
    static void CreateStringAlias(const String& str, String& alias, int start_index);
};
 
}} // System::Globalization