85 lines
2.9 KiB
C++
Executable File
85 lines
2.9 KiB
C++
Executable File
#ifndef USTRING_H
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#define USTRING_H
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#include "utf.h"
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#include <iostream>
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#include <cstdint>
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/**
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* Класс строк, работающий с некоторыми кодировками юникода (UTF-8, UTF-16, UTF-32)
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* Хранит данные внутри себя в UCS-4 и инкапсулирует в себе кодирование/декодирование
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* указанных выше кодировок.
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*/
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class ustring
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{
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private:
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std::size_t _len;
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char32_t* _pData;
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private:
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mutable std::size_t _capacity;
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mutable char* _pUtf8;
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mutable char16_t* _pUtf16;
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mutable char32_t* _pUtf32;
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private:
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inline void clear_internal_buffers() const;
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inline void init_from_utf8_str(const char* str, bool needUnescape);
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inline void init_from_utf16_str(const char16_t* str, byte_order byteOrder = BYTE_ORDER_LITTLE_ENDIAN);
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inline void init_from_utf32_str(const char32_t* str, byte_order byteOrder = BYTE_ORDER_LITTLE_ENDIAN);
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public:
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static const std::size_t npos = -1;
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public:
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enum encoding { UTF8, UTF16LE, UTF16BE, UTF32LE, UTF32BE };
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public:
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ustring();
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ustring(const ustring& str);
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ustring(ustring&& str);
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ustring(const char* str, bool needUnescape = false);
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ustring(const char16_t* str, byte_order byteOrder = BYTE_ORDER_LITTLE_ENDIAN);
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ustring(const char32_t* str, byte_order byteOrder = BYTE_ORDER_LITTLE_ENDIAN);
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ustring(const std::string& str, bool needUnescape = false);
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ustring(const std::wstring& str);
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explicit ustring(std::size_t n);
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operator std::string() const;
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operator std::wstring() const;
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const char* utf8_str(bool addBom = false, bool needEscape = false) const;
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const char16_t* utf16_str(bool addBom = false, byte_order byteOrder = BYTE_ORDER_LITTLE_ENDIAN) const;
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const char32_t* utf32_str(bool addBom = false, byte_order byteOrder = BYTE_ORDER_LITTLE_ENDIAN) const;
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std::size_t length() const;
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std::size_t load_from_file(const ustring& fileName, encoding enc);
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std::size_t store_to_file(const ustring& fileName, encoding enc) const;
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ustring& operator=(const ustring& str);
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ustring& operator=(ustring&& str);
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ustring& operator+=(const ustring& str);
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ustring& operator+(const ustring& str);
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bool operator==(const ustring& str) const;
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bool operator!=(const ustring& str) const;
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char32_t& operator[](std::size_t index);
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ustring& assign(const char32_t* str, std::size_t n);
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ustring& erase(std::size_t pos = 0, std::size_t len = npos);
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ustring& insert(std::size_t pos, const ustring& str);
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ustring& replace(const ustring& what, const ustring& by);
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void clear();
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bool empty() const;
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std::size_t find(char32_t symbol, std::size_t pos = 0) const;
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std::size_t find(const ustring& str, std::size_t pos = 0) const;
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ustring substr(std::size_t pos = 0, std::size_t len = npos) const;
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friend std::ostream& operator<<(std::ostream& os, const ustring& ustr);
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friend std::istream& operator>>(std::istream& is, ustring& ustr);
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~ustring();
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};
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#endif // USTRING_H
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