PathUtils.h

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// Copyright (c) 2002-present, OpenMS Inc. -- EKU Tuebingen, ETH Zurich, and FU Berlin
// SPDX-License-Identifier: BSD-3-Clause
//
// --------------------------------------------------------------------------
// $Maintainer: Chris Bielow $
// $Authors: Chris Bielow $
// --------------------------------------------------------------------------
 
#pragma once
 
#include <filesystem>
#include <string>
 
namespace OpenMS
{
  namespace PathUtils
  {
    inline std::string basename(const std::string& file)
    {
      // Preserve File::basename's unsigned npos + 1 wraparound to zero.
      return file.substr(file.find_last_of("\\/") + 1);
    }
  }
 
  inline std::filesystem::path to_path(const std::string& s)
  {
#ifdef _WIN32
    try
    {
      return std::filesystem::path(std::u8string(reinterpret_cast<const char8_t*>(s.data()), s.size()));
    }
    catch (const std::system_error&)
    {
      // Not valid UTF-8 (e.g., ANSI-encoded filename from argv); let Windows use the current code page.
      return std::filesystem::path(s);
    }
#else
    return std::filesystem::path(std::u8string(reinterpret_cast<const char8_t*>(s.data()), s.size()));
#endif
  }
} // namespace OpenMS