317 lines
8.9 KiB
C++
317 lines
8.9 KiB
C++
/*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/.
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*/
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#pragma once
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#include <string>
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#include <string_view>
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#include <vector>
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#include <c4/substr.hpp>
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#include <c4/substr_fwd.hpp>
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#include <c4/format.hpp>
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#include <c4/charconv.hpp>
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#include <utf8.h>
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#include <type_traits>
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namespace OpenVulkano
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{
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class String final
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{
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public:
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String() = default;
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String(const char* str) : m_string(str) {}
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String(const std::string& str) : m_string(str) {}
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String(const std::string_view& str) : m_string(str) {}
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String(const String& other) : m_string(other.m_string) {}
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String(String&& other) noexcept : m_string(std::move(other.m_string)) {}
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~String() = default;
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template<typename T> String& operator=(const T& other)
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{
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m_string = other;
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return *this;
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}
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template<typename T> String& operator=(T&& other)
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{
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m_string = std::move(other);
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return *this;
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}
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template<typename T> String& operator=(const String& other)
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{
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m_string = other.m_string;
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return *this;
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}
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template<typename T> String& operator+=(const T& other)
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{
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m_string += other;
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return *this;
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}
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template<typename T> String& operator+=(const String& other)
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{
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m_string += other.m_string;
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return *this;
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}
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template<typename T> String operator+(const T& other) const { return m_string + other; }
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String operator+(const String& other) const { return m_string + other.m_string; }
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template<typename T> auto operator<=>(const T& other) const { return m_string <=> other; }
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auto operator<=>(const String& other) const = default;
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explicit operator bool() const { return !m_string.empty(); }
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operator std::string() const { return m_string; }
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explicit operator std::string_view() const { return m_string; }
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char& operator[](size_t index) noexcept { return m_string[index]; }
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const char& operator[](size_t index) const noexcept { return m_string[index]; }
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char& At(size_t index) { return m_string.at(index); }
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const char& At(size_t index) const { return m_string.at(index); }
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const char* CharString() const { return m_string.c_str(); }
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const char* Data() { return m_string.data(); }
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size_t Length() const { return m_string.length(); }
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size_t Size() const { return m_string.size(); }
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bool Empty() const { return m_string.empty(); }
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size_t Capacity() const { return m_string.capacity(); }
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size_t CharCount() const { return utf8::distance(m_string.begin(), m_string.end()); }
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char& Front() { return m_string.front(); }
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char& Back() { return m_string.back(); }
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void PopBack() { m_string.pop_back(); }
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void Clear() { m_string.clear(); }
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void ShrinkToFit() { m_string.shrink_to_fit(); }
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String SubString(size_t start, size_t elementCount) const { return m_string.substr(start, elementCount); }
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bool StartsWith(const std::string_view& str) const { return m_string.find(str) == 0; }
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bool EndsWith(const std::string_view& str) const { return m_string.rfind(str) == m_string.size() - str.size(); }
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bool Contains(const std::string_view& str) const { return m_string.find(str) != std::string::npos; }
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size_t FindStartIndexOf(const std::string_view& str) const { return m_string.find(str); }
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size_t FindEndIndexOf(const std::string_view& str) const { return m_string.rfind(str); }
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String& Trim() noexcept { return TrimBack().TrimFront(); }
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[[nodiscard]] String Trim() const { return Trim(); }
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String& TrimFront() noexcept
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{
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size_t start = m_string.find_first_not_of(" \t\n\r");
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if (start == std::string::npos)
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{
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m_string.clear();
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}
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else
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{
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m_string.erase(0, start);
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}
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return *this;
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}
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String& TrimBack() noexcept
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{
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size_t end = m_string.find_last_not_of(" \t\n\r");
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if (end == std::string::npos)
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{
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m_string.clear();
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}
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else
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{
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m_string.resize(end + 1);
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}
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return *this;
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}
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std::vector<String> Split(const std::string_view& delimiter) const
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{
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std::vector<String> result;
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size_t start = 0;
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size_t end = m_string.find(delimiter);
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while (end != std::string::npos)
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{
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result.push_back(m_string.substr(start, end - start));
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start = end + delimiter.size();
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end = m_string.find(delimiter, start);
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}
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result.push_back(m_string.substr(start, end));
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return result;
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}
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std::pair<String, String> SplitAtLastOccurrence(const std::string_view& delimiter) const
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{
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size_t end = m_string.rfind(delimiter);
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if (end == std::string::npos)
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{
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return { m_string, "" };
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}
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return { m_string.substr(0, end), m_string.substr(end + delimiter.size()) };
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}
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std::pair<String, String> SplitAtFirstOccurrence(const std::string_view& delimiter) const
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{
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size_t end = m_string.find(delimiter);
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if (end == std::string::npos)
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{
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return { m_string, "" };
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}
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return { m_string.substr(0, end), m_string.substr(end + delimiter.size()) };
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}
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std::vector<std::string_view> SplitAsStringViews(const std::string_view& delimiter) const
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{
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std::vector<std::string_view> result;
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size_t start = 0;
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size_t end = m_string.find(delimiter);
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while (end != std::string::npos)
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{
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result.push_back(std::string_view(m_string.c_str() + start, end - start));
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start = end + delimiter.size();
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end = m_string.find(delimiter, start);
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}
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result.push_back(
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std::string_view(m_string.c_str() + start, m_string.size() - (start + end + delimiter.size())));
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return result;
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}
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std::pair<std::string_view, std::string_view>
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SplitAtLastOccurenceAsStringViews(const std::string_view& delimiter) const
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{
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size_t end = m_string.rfind(delimiter);
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if (end == std::string::npos)
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{
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return { m_string, "" };
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}
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return { std::string_view(m_string.c_str(), end),
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std::string_view(m_string.c_str() + end + delimiter.size(),
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m_string.size() - end - delimiter.size()) };
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}
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std::pair<std::string_view, std::string_view>
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SplitAtFirstOccurenceAsStringViews(const std::string_view& delimiter) const
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{
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size_t end = m_string.find(delimiter);
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if (end == std::string::npos)
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{
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return { m_string, "" };
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}
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return { std::string_view(m_string.c_str(), end),
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std::string_view(m_string.c_str() + end + delimiter.size(),
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m_string.size() - end - delimiter.size()) };
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}
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static inline constexpr int64_t OctToInt(const std::string_view& string)
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{
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int64_t result = 0;
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for (int i = 0; i < static_cast<int>(string.length()); i++)
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{
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char c = string[i];
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if (c == 0)
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{
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break;
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}
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if (c == ' ')
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{
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continue;
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}
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if (c < '0' || c > '7')
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{
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return -1;
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}
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result = result * 8 + c - '0';
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}
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return result;
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}
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constexpr int64_t OctToInt() const { return OctToInt(m_string); }
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static inline constexpr int64_t HexToInt(const std::string_view& string)
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{
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int64_t result = 0;
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for (char c: string)
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{
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if (c == 0)
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{
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break;
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}
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if (c == ' ')
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{
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continue;
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}
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if (c >= '0' && c <= '9')
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{
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result = result * 16 + c - '0';
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}
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else if (c >= 'A' && c <= 'F')
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{
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result = result * 16 + c - 'A' + 10;
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}
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else if (c >= 'a' && c <= 'f')
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{
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result = result * 16 + c - 'a' + 10;
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}
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else
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{
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return -1;
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}
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}
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return result;
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}
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constexpr int64_t HexToInt() { return HexToInt(m_string); }
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static bool IsUrl(const std::string_view& str)
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{
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return str.find("http://") == 0 || str.find("https://") == 0 || str.find("ftp://") == 0;
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}
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bool IsUrl() const { return IsUrl(m_string); }
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void ToUpper() noexcept
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{
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std::transform(m_string.begin(), m_string.end(), m_string.begin(),
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[](unsigned char c) { return std::toupper(c); });
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}
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void ToLower() noexcept
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{
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std::transform(m_string.begin(), m_string.end(), m_string.begin(),
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[](unsigned char c) { return std::tolower(c); });
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}
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void Capitalize() noexcept
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{
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if (!m_string.empty())
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{
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m_string[0] = std::toupper(m_string[0]);
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}
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}
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template<typename T, typename = std::enable_if_t<std::is_arithmetic_v<T>>> T FromString() const
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{
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T value;
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c4::csubstr str = c4::to_csubstr(m_string.c_str());
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c4::from_chars(str, &value);
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return value;
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}
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// iterators
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std::string::iterator begin() { return m_string.begin(); }
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std::string::iterator end() { return m_string.end(); }
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std::string::const_iterator cbegin() const { return m_string.cbegin(); }
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std::string::const_iterator cend() const { return m_string.cend(); }
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std::string::reverse_iterator rbegin() { return m_string.rbegin(); }
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std::string::reverse_iterator rend() { return m_string.rend(); }
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std::reverse_iterator<std::string::const_iterator> crbegin() const { return m_string.crbegin(); }
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std::reverse_iterator<std::string::const_iterator> crend() const { return m_string.crend(); }
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private:
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std::string m_string;
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};
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template<typename T> String operator+(const T& lhs, const String& rhs) noexcept { return String(lhs) + rhs; }
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}
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