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/* NewNet - A networking framework in C++
Copyright (C) 2006-2007 Ingmar K. Steen (iksteen@gmail.com)
Copyright 2008 little blue poney <lbponey@users.sourceforge.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "nnpath.h"
#include <assert.h>
#include <limits.h>
#include "platform.h"
NewNet::Path::Path(const std::vector<std::string> & path)
{
if(path.empty())
return;
std::vector<std::string>::const_iterator it, begin = path.begin(), end = path.end();
for(it = begin; it != end; ++it)
{
if(it != begin)
m_Path += separator();
m_Path += (*it);
}
}
bool
NewNet::Path::isAbsolute() const
{
#ifndef WIN32
return ((! m_Path.empty()) && (m_Path[0] == '/'));
#else
return ((m_Path.length() >= 3) && (m_Path.substr(1, 2) == ":\\"));
#endif // ! WIN32
}
std::vector<std::string>
NewNet::Path::split() const
{
std::vector<std::string> ret;
if(m_Path.empty())
return ret;
std::string path(m_Path);
std::string::size_type ix = path.find(separator());
while(ix != std::string::npos)
{
ret.push_back(path.substr(0, ix));
path = path.substr(ix + 1);
ix = path.find(separator());
}
ret.push_back(path);
return ret;
}
NewNet::Path
NewNet::Path::simplified() const
{
std::string::size_type minElements = isAbsolute() ? 1 : 0;
std::vector<std::string> s(split()), r;
std::vector<std::string>::iterator it, begin = s.begin(), end = s.end();
for(it = begin; it != end; ++it)
{
if(((*it) == ".") || ((it != begin) && (*it).empty()))
continue;
else if((*it) == "..")
{
if(r.size() > minElements)
r.pop_back();
else if(minElements == 0)
r.push_back(*it);
}
else
r.push_back(*it);
}
return Path(r);
}
NewNet::Path
NewNet::Path::absolute(const std::string & base_) const
{
if(isAbsolute())
return *this;
Path base(base_);
if(base.path().empty())
base = currentDir();
else if(! base.isAbsolute())
base = base.absolute();
if(base.path().empty() || (base.path()[base.path().length() - 1] != separator()))
return Path(base.path() + separator() + m_Path);
else
return Path(base.path() + m_Path);
}
NewNet::Path
NewNet::Path::currentDir()
{
std::string path;
char * buf = new char[PATH_MAX];
assert(getcwd(buf, PATH_MAX) != 0);
path = buf;
delete [] buf;
return Path(path);
}
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