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155 lines
3.3 KiB
C++
155 lines
3.3 KiB
C++
//
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// DirectoryIterator.h
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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/File.h"
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#include "Poco/Foundation.h"
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#include "Poco/Path.h"
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namespace Poco
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{
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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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