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156 lines
3.3 KiB
C++
156 lines
3.3 KiB
C++
//
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// DirectoryIterator.h
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//
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// $Id: //poco/1.4/Foundation/include/Poco/DirectoryIterator.h#1 $
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//
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// Library: Foundation
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// Package: Filesystem
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// Module: DirectoryIterator
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//
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// Definition of the DirectoryIterator class.
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//
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// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#ifndef Foundation_DirectoryIterator_INCLUDED
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#define Foundation_DirectoryIterator_INCLUDED
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#include "Poco/Foundation.h"
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#include "Poco/File.h"
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#include "Poco/Path.h"
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namespace Poco {
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class DirectoryIteratorImpl;
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class Foundation_API DirectoryIterator
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/// The DirectoryIterator class is used to enumerate
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/// all files in a directory.
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///
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/// DirectoryIterator has some limitations:
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/// * only forward iteration (++) is supported
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/// * an iterator copied from another one will always
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/// point to the same file as the original iterator,
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/// even is the original iterator has been advanced
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/// (all copies of an iterator share their state with
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/// the original iterator)
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/// * because of this you should only use the prefix
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/// increment operator
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{
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public:
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DirectoryIterator();
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/// Creates the end iterator.
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DirectoryIterator(const std::string& path);
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/// Creates a directory iterator for the given path.
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DirectoryIterator(const DirectoryIterator& iterator);
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/// Creates a directory iterator for the given path.
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DirectoryIterator(const File& file);
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/// Creates a directory iterator for the given file.
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DirectoryIterator(const Path& path);
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/// Creates a directory iterator for the given path.
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virtual ~DirectoryIterator();
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/// Destroys the DirectoryIterator.
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const std::string& name() const;
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/// Returns the current filename.
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const Path& path() const;
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/// Returns the current path.
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DirectoryIterator& operator = (const DirectoryIterator& it);
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DirectoryIterator& operator = (const File& file);
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DirectoryIterator& operator = (const Path& path);
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DirectoryIterator& operator = (const std::string& path);
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virtual DirectoryIterator& operator ++ (); // prefix
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//@ deprecated
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DirectoryIterator operator ++ (int); // postfix
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/// Please use the prefix increment operator instead.
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const File& operator * () const;
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File& operator * ();
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const File* operator -> () const;
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File* operator -> ();
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bool operator == (const DirectoryIterator& iterator) const;
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bool operator != (const DirectoryIterator& iterator) const;
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protected:
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Path _path;
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File _file;
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private:
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DirectoryIteratorImpl* _pImpl;
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};
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//
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// inlines
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//
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inline const std::string& DirectoryIterator::name() const
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{
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return _path.getFileName();
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}
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inline const Path& DirectoryIterator::path() const
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{
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return _path;
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}
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inline const File& DirectoryIterator::operator * () const
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{
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return _file;
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}
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inline File& DirectoryIterator::operator * ()
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{
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return _file;
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}
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inline const File* DirectoryIterator::operator -> () const
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{
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return &_file;
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}
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inline File* DirectoryIterator::operator -> ()
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{
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return &_file;
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}
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inline bool DirectoryIterator::operator == (const DirectoryIterator& iterator) const
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{
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return name() == iterator.name();
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}
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inline bool DirectoryIterator::operator != (const DirectoryIterator& iterator) const
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{
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return name() != iterator.name();
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}
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} // namespace Poco
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#endif // Foundation_DirectoryIterator_INCLUDED
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