dust3d/third_party/libigl/include/igl/dirname.cpp

41 lines
1.1 KiB
C++

// This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2018 Alec Jacobson <alecjacobson@gmail.com>
// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
//
// This Source Code Form is subject to the terms of the Mozilla Public License
// v. 2.0. If a copy of the MPL was not distributed with this file, You can
// obtain one at http://mozilla.org/MPL/2.0/.
#include "dirname.h"
#include <algorithm>
#include "verbose.h"
IGL_INLINE std::string igl::dirname(const std::string & path)
{
if(path == "")
{
return std::string("");
}
// https://stackoverflow.com/a/3071694/148668
size_t found = path.find_last_of("/\\");
if(found == std::string::npos)
{
// No slashes found
return std::string(".");
}else if(found == 0)
{
// Slash is first char
return std::string(path.begin(),path.begin()+1);
}else if(found == path.length()-1)
{
// Slash is last char
std::string redo = std::string(path.begin(),path.end()-1);
return igl::dirname(redo);
}
// Return everything up to but not including last slash
return std::string(path.begin(),path.begin()+found);
}