70 lines
1.9 KiB
C++
70 lines
1.9 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef IGL_DIRNAME_H
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#define IGL_DIRNAME_H
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#define IGL_INLINE inline
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#include <string>
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namespace igl
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{
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// Function like PHP's dirname: /etc/passwd --> /etc,
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// Input:
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// path string containing input path
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// Returns string containing dirname (see php's dirname)
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//
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// See also: basename, pathinfo
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IGL_INLINE std::string dirname(const std::string & path);
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}
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//
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// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#include <algorithm>
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IGL_INLINE std::string igl::dirname(const std::string & path)
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{
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if(path == "")
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{
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return std::string("");
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}
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#if defined (WIN32)
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char del('\\');
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#else
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char del('/');
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#endif
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// http://stackoverflow.com/questions/5077693/dirnamephp-similar-function-in-c
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std::string::const_reverse_iterator last_slash =
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std::find(
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path.rbegin(),
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path.rend(),del);
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if( last_slash == path.rend() )
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{
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// No slashes found
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return std::string(".");
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}else if(1 == (last_slash.base() - path.begin()))
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{
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// Slash is first char
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return std::string(&del);
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}else if(path.end() == last_slash.base() )
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{
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// Slash is last char
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std::string redo = std::string(path.begin(),path.end()-1);
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return igl::dirname(redo);
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}
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return std::string(path.begin(),last_slash.base()-1);
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}
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#endif
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