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Runtime/Includes/Core/CLI.inl

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+#pragma once
+#include <Core/CLI.h>
+
+#include <algorithm>
+
+namespace Scop
+{
+	CommandLineInterface::CommandLineInterface()
+	{
+		s_instance = this;
+	}
+
+	std::optional<std::string> CommandLineInterface::GetOption(std::string_view option) const
+	{
+		auto it = m_options.find(static_cast<std::string>(option));
+		if(it == m_options.end())
+			return std::nullopt;
+		return it->second;
+	}
+
+	std::optional<std::string> CommandLineInterface::GetArgument(std::string_view arg) const
+	{
+		auto it = std::find(m_args.begin(), m_args.end(), arg);
+		if(it == m_args.end())
+			return std::nullopt;
+		return *it;
+	}
+
+	bool CommandLineInterface::HasFlag(std::string_view flag) const
+	{
+		return std::find(m_flags.begin(), m_flags.end(), flag) != m_flags.end();
+	}
+
+	const std::string& CommandLineInterface::GetCommand() const
+	{
+		return m_cmd;
+	}
+
+	void CommandLineInterface::Feed(int ac, char** av)
+	{
+		if(ac == 0 || av == nullptr)
+			return;
+		m_cmd = av[0];
+		for(int i = 1; i < ac; i++)
+		{
+			std::string_view arg{ av[i] };
+			if(arg.front() == '-')
+			{
+				arg.remove_prefix(1);
+				if(arg.front() == '-') // in case of arg begenning with --
+					arg.remove_prefix(1);
+				std::size_t finder = arg.find_first_of('=');
+				if(finder != std::string_view::npos)
+					m_options.emplace(std::make_pair(arg.substr(0, finder), arg.substr(finder + 1)));
+				else
+					m_flags.emplace(arg);
+			}
+			else
+				m_args.emplace(arg);
+		}
+	}
+
+	CommandLineInterface& CommandLineInterface::Get() noexcept
+	{
+		return *s_instance;
+	}
+
+	CommandLineInterface::~CommandLineInterface()
+	{
+		s_instance = nullptr;
+	}
+}