[pclasses-cvs] pclasses2/src/System Path.posix.cpp,NONE,1.1

[Christian P. <cp...@us...>]

Update of /cvsroot/pclasses/pclasses2/src/System
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv15622/src/System

Added Files:
	Path.posix.cpp 
Log Message:
- Added System::Path for obtaining dirName/baseName of a path. Also used to
retrieve absolute pathes.


--- NEW FILE: Path.posix.cpp ---
/***************************************************************************
 *   Copyright (C) 2005 by Christian Prochnow                              *
 *   cp...@se...                                                   *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU Library 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 Library 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 "pclasses/System/Path.h"

#include <errno.h>
#include <limits.h>
#include <stdlib.h>
#include <unistd.h>

namespace P {

namespace System {

Path::Path(const Unicode::String& path)
{
	// cut trailing "/" if not leading ...
	if(path.size() > 1 && path.substr(path.size()-1) == separator())
		_path = path.substr(0,path.size()-1);
	else
		_path = path;
}

Path::~Path()
{
}

Unicode::String Path::dirName() const throw()
{
	Unicode::String::size_type slashat =
		_path.find_last_of(separator());

	if(slashat == Unicode::String::npos || slashat == 0)
		return _path;

	return _path.substr(0, slashat);
}

Unicode::String Path::absDirName() const throw(SystemError)
{
	char* absDirName = realpath(dirName().utf8().c_str(), 0);
	if(!absDirName)
		throw SystemError(errno, "Could not resolve real path", P_SOURCEINFO);

	Unicode::String res = Unicode::String::fromUtf8(absDirName);
	free(absDirName);
	return res;
}

Unicode::String Path::baseName() const throw()
{
	Unicode::String::size_type slashat =
		_path.find_last_of(separator());

	if(slashat == Unicode::String::npos)
		return _path;

	return _path.substr(slashat + 1);
}

Unicode::String Path::path() const throw()
{
	return _path;
}

Unicode::String Path::absPath() const throw(SystemError)
{
	char* absPath = realpath(_path.utf8().c_str(), 0);
	if(!absPath)
		throw SystemError(errno, "Could not resolve real path", P_SOURCEINFO);

	Unicode::String res = Unicode::String::fromUtf8(absPath);
	free(absPath);
	return res;
}

bool Path::isAccessible() const throw()
{
	return 0 == access(_path.utf8().c_str(), F_OK);
}

Path& Path::operator=(const Unicode::String& path)
{
	_path = path;
	return *this;
}

const char* Path::separator() throw()
{
	return "/";
}

} // !namespace System

} // !namespace P