path.cpp

This software aims to create an applet and panel tools to manage a wireless interface card, such as

//
// Path.cpp
//
// $Id: //poco/Main/Foundation/src/Path.cpp#5 $
//
// Copyright (c) 2004, Guenter Obiltschnig/Applied Informatics.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
//
// 3. Redistributions in any form must be accompanied by information on
//    how to obtain complete source code for this software and any
//    accompanying software that uses this software.  The source code
//    must either be included in the distribution or be available for no
//    more than the cost of distribution plus a nominal fee, and must be
//    freely redistributable under reasonable conditions.  For an
//    executable file, complete source code means the source code for all
//    modules it contains.  It does not include source code for modules or
//    files that typically accompany the major components of the operating
//    system on which the executable file runs.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//


#include "Foundation/Path.h"
#include "Foundation/File.h"
#include "Foundation/Exception.h"
#include "Foundation/StringTokenizer.h"


#if defined(POCO_OS_FAMILY_VMS)
#include "Path_VMS.cpp"
#elif defined(POCO_OS_FAMILY_UNIX)
#include "Path_UNIX.cpp"
#elif defined(POCO_OS_FAMILY_WINDOWS)
#include "Path_WIN32.cpp"
#endif


Foundation_BEGIN


Path::Path(): _absolute(false)
{
}


Path::Path(bool absolute): _absolute(absolute)
{
}


Path::Path(const std::string& path)
{
	assign(path);
}


Path::Path(const std::string& path, Style style)
{
	assign(path, style);
}


Path::Path(const char* path)
{
	poco_check_ptr(path);
	assign(path);
}


Path::Path(const char* path, Style style)
{
	poco_check_ptr(path);
	assign(path, style);
}


Path::Path(const Path& path): 
	_node(path._node), 
	_device(path._device),
	_name(path._name),
	_version(path._version),
	_dirs(path._dirs),
	_absolute(path._absolute)
{	
}


Path::Path(const Path& parent, const std::string& fileName):
	_node(parent._node), 
	_device(parent._device),
	_name(parent._name),
	_version(parent._version),
	_dirs(parent._dirs),
	_absolute(parent._absolute)
{	
	makeDirectory();
	_name = fileName;
}


Path::~Path()
{
}

	
Path& Path::operator = (const Path& path)
{
	if (&path != this)
	{
		_node     = path._node;
		_device   = path._device;
		_name     = path._name;
		_version  = path._version;
		_dirs     = path._dirs;
		_absolute = path._absolute;
	}
	return *this;
}

	
Path& Path::operator = (const std::string& path)
{
	return assign(path);
}


Path& Path::operator = (const char* path)
{
	poco_check_ptr(path);
	return assign(path);
}


Path& Path::assign(const std::string& path)
{
#if defined(POCO_OS_FAMILY_VMS)
	parseVMS(path);
#elif defined(POCO_OS_FAMILY_WINDOWS)
	parseWindows(path);
#else
	parseUnix(path);
#endif
	return *this;
}

	
Path& Path::assign(const std::string& path, Style style)
{
	switch (style)
	{
	case PATH_UNIX:
		parseUnix(path);
		break;
	case PATH_WINDOWS:
		parseWindows(path);
		break;
	case PATH_VMS:
		parseVMS(path);
		break;
	case PATH_NATIVE:
		assign(path);
		break;
	case PATH_GUESS:
		parseGuess(path);
		break;
	default:
		poco_bugcheck();
	}
	return *this;
}


std::string Path::toString() const
{
#if defined(POCO_OS_FAMILY_UNIX)
	return buildUnix();
#elif defined(POCO_OS_FAMILY_WINDOWS)
	return buildWindows();
#else
	return buildVMS();
#endif
}

	
std::string Path::toString(Style style) const
{
	switch (style)
	{
	case PATH_UNIX:
		return buildUnix();
	case PATH_WINDOWS:
		return buildWindows();
	case PATH_VMS:
		return buildVMS();
	case PATH_NATIVE:
	case PATH_GUESS:
		return toString();
	default:
		poco_bugcheck();
	}
	return std::string();
}


Path& Path::parseDirectory(const std::string& path)
{
	assign(path);
	return makeDirectory();
}


Path& Path::parseDirectory(const std::string& path, Style style)
{
	assign(path, style);
	return makeDirectory();
}


Path& Path::makeDirectory()
{
#if defined(POCO_OS_FAMILY_VMS)
	pushDirectory(getBaseName());
#else
	pushDirectory(_name);
#endif
	_name.clear();
	_version.clear();
	return *this;
}


Path& Path::makeFile()
{
	if (!_dirs.empty() && _name.empty())
	{
		_name = _dirs.back();
		_dirs.pop_back();
#if defined(POCO_OS_FAMILY_VMS)
		setExtension("DIR");
#endif
	}
	return *this;
}


Path& Path::makeAbsolute()
{
	return makeAbsolute(current());
}


Path& Path::makeAbsolute(const Path& base)
{
	if (!_absolute)
	{
		Path tmp = base;
		tmp.makeDirectory();
		for (StringVec::const_iterator it = _dirs.begin(); it != _dirs.end(); ++it)
		{
			tmp.pushDirectory(*it);
		}
		_node     = tmp._node;
		_device   = tmp._device;
		_dirs     = tmp._dirs;
		_absolute = base._absolute;
	}
	return *this;
}


Path Path::absolute() const
{
	Path result(*this);
	if (!result._absolute)
	{
		result.makeAbsolute();
	}
	return result;
}


Path Path::absolute(const Path& base) const
{
	Path result(*this);
	if (!result._absolute)
	{
		result.makeAbsolute(base);
	}
	return result;
}


Path Path::parent() const
{
	Path p(*this);
	return p.makeParent();
}


Path& Path::makeParent()
{
	if (_name.empty())
	{
		if (_dirs.empty())
		{
			if (!_absolute)
				_dirs.push_back("..");
		}
		else
		{
			if (_dirs.back() == "..")
				_dirs.push_back("..");
			else
				_dirs.pop_back();
		}
	}
	else
	{
		_name.clear();
		_version.clear();
	}
	return *this;
}


Path& Path::append(const Path& path)
{
	makeDirectory();
	_dirs.insert(_dirs.end(), path._dirs.begin(), path._dirs.end());
	_name = path._name;
	_version = path._version;
	return *this;
}


void Path::setNode(const std::string& node)
{
	_node     = node;
	_absolute = _absolute || !node.empty();
}

	
void Path::setDevice(const std::string& device)
{
	_device   = device;
	_absolute = _absolute || !device.empty();
}

	
const std::string& Path::directory(int n) const
{
	poco_assert (0 <= n && n <= _dirs.size());
	
	if (n < _dirs.size())
		return _dirs[n];
	else
		return _name;	
}


const std::string& Path::operator [] (int n) const
{
	poco_assert (0 <= n && n <= _dirs.size());
	
	if (n < _dirs.size())
		return _dirs[n];
	else
		return _name;	
}

	
void Path::pushDirectory(const std::string& dir)
{
	if (!dir.empty() && dir != ".")
	{
#if defined(POCO_OS_FAMILY_VMS)
		if (dir == ".." || dir == "-")
		{
			if (!_dirs.empty() && _dirs.back() != ".." && _dirs.back() != "-")
				_dirs.pop_back();
			else if (!_absolute)
				_dirs.push_back(dir);
		}
		else _dirs.push_back(dir);
#else
		if (dir == "..")
		{
			if (!_dirs.empty() && _dirs.back() != "..")
				_dirs.pop_back();
			else if (!_absolute)
				_dirs.push_back(dir);
		}
		else _dirs.push_back(dir);
#endif
	}
}

	
void Path::popDirectory()
{
	poco_assert (!_dirs.empty());
	
	_dirs.pop_back();
}

	
void Path::setFileName(const std::string& name)
{
	_name = name;
}


void Path::setBaseName(const std::string& name)
{
	std::string ext = getExtension();
	_name = name;
	if (!ext.empty())
	{
		_name.append(".");
		_name.append(ext);
	}
}


std::string Path::getBaseName() const
{
	std::string::size_type pos = _name.rfind('.');
	if (pos != std::string::npos)
		return _name.substr(0, pos);
	else