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DirectoryIterator.hpp

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00001 /*==========================================================================
00002  * Copyright (c) 2004 University of Massachusetts.  All Rights Reserved.
00003  *
00004  * Use of the Lemur Toolkit for Language Modeling and Information Retrieval
00005  * is subject to the terms of the software license set forth in the LICENSE
00006  * file included with this software, and also available at
00007  * http://www.lemurproject.org/license.html
00008  *
00009  *==========================================================================
00010  */
00011 
00012 
00013 //
00014 // DirectoryIterator
00015 //
00016 // 26 May 2004 -- tds
00017 //
00018 
00019 #ifndef INDRI_DIRECTORYITERATOR_HPP
00020 #define INDRI_DIRECTORYITERATOR_HPP
00021 
00022 #include <string>
00023 namespace indri
00024 {
00025   namespace file
00026   {
00027     
00030     class DirectoryIterator {
00031     private:
00032       static DirectoryIterator _end;
00033 
00034       bool _relative;
00035       std::string _current;
00036       void* _platform;
00037       std::string _path;
00038 
00039       void _copyCurrent();
00040       void _next();
00041   
00042     public:
00043       DirectoryIterator();
00044       
00049       DirectoryIterator( const std::string& path, bool relative = true );
00050       ~DirectoryIterator();
00051 
00053       void operator ++ (int);
00055       void operator ++ ();
00056       
00059       bool operator == ( const DirectoryIterator& other );
00060       
00064       const std::string& operator* ();
00065       
00068       const std::string& base() const;
00069       
00071       void close();
00072       
00075       static const DirectoryIterator& end();
00076     };
00077   }
00078 }
00079 
00080 #endif // INDRI_DIRECTORYITERATOR_HPP
00081 

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