85 lines
2.6 KiBLFS
C++
85 lines
2.6 KiBLFS
C++
/**
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* @file
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*
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* @author Max Lammers <max@senseglove.com>
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* @author Mamadou Babaei <mamadou@senseglove.com>
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*
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* @section LICENSE
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*
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* Copyright (c) 2020 - 2025 SenseGlove
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*
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* @section DESCRIPTION
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*
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* String conversion, parsing and other utility stuff. Much more prominent in
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* C++.
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*/
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#pragma once
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#include "Platform.hpp"
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#include <memory>
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#if SG_HAS_STD_FORMAT
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#include <format>
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#endif /* SG_HAS_STD_FORMAT */
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#include <stdexcept>
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#include <string>
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#include <vector>
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#include "ExitCodes.hpp"
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namespace SGConnect
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{
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class StringUtils;
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}
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/// <summary> Utility class to convert strings into usable values. </summary>
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class SGConnect::StringUtils
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{
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public:
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/// <summary> Split a std::string into a vector of std::strings by a delimiter </summary>
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static std::vector<std::string> Split(const std::string& str, char delimiter);
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/// <summary> Convert a string into an integer value. </summary>
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static int32_t ToInt(const std::string& str);
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/// <summary> Convert a string into a decimal value. </summary>
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static float ToFloat(const std::string& str);
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static std::string ToString(EExitCode code);
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// NOTE:
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// SG_HAS_STD_FORMAT is a mandatory workaround for Android NDK r25b and Epic
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// Native or Cross Toolchains v22, which lack full <format> support.
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// Once support for these toolchains is dropped, SG_HAS_STD_FORMAT and
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// StringUtils::FormatString() can be removed in favor of direct usage of
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// std::format().
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#if SG_HAS_STD_FORMAT
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template<typename... Args>
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SG_FORCEINLINE static std::string FormatString(std::format_string<Args...> fmt, Args&&... args)
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{
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return std::format(fmt, std::forward<Args>(args)...);
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}
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#else /* SG_HAS_STD_FORMAT */
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template<typename... Args>
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static std::string FormatString(const std::string& fmt, const Args&... args)
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{
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int32_t size = std::snprintf(nullptr, 0, fmt.c_str(), args...) + 1;// extra space for '\0'
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if (size <= 0) {
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throw std::runtime_error("Error during formatting.");
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}
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std::unique_ptr<char[]> buffer{std::make_unique<char[]>(size)};
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std::snprintf(buffer.get(), size, fmt.c_str(), args...);
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return std::string{buffer.get(), buffer.get() + size - 1};// we don't want the '\0' inside
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}
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#endif /* SG_HAS_STD_FORMAT */
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//Base64 Encoding - for firmware. Taken from https://github.com/tobiaslocker/base64
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static std::string get_base64_chars();
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static std::string CharV_to_base64(const std::vector<char>& data);
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public:
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StringUtils() = delete;
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virtual ~StringUtils() = delete;
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}; |