findfile.h

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/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
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 * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved. 
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 * the file under the RealNetworks Community Source License Version 1.0 
 * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl, 
 * in which case the RCSL will apply. You may also obtain the license terms 
 * directly from RealNetworks.  You may not use this file except in 
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 * This file is part of the Helix DNA Technology. RealNetworks is the 
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 * ***** END LICENSE BLOCK ***** */ 

//
// findfile.h
//
// Interface to CFindFile.
//
// CFindFile is a class for finding files in a search path.
// The file name to search for can contain wildcards.
//
// regcomp/regcmp is used for the pattern-matching, so the
// appropriate library must be linked in to use this class.
//

#ifndef __FINDFILE_H
#define __FINDFILE_H

#include "hxtypes.h"
#include "hxcom.h"
#include "hxstring.h"

// forward declares for classes and structs
// include for regular expression compiler

#if defined(_UNIX)

#include <sys/types.h>

#if defined (_IRIX)
#include <libgen.h>
#elif  defined (_LINUX)
#include <regex.h>
#endif

#if defined (_SOLARIS) || defined (_FREEBSD) || defined (_OPENBSD) || defined (_OPENBSD) || defined (_NETBSD)
#include <dirent.h>
#elif defined (__hpux)
#include <sys/dirent.h>
#elif defined (_VXWORKS)
#else
#include <sys/dir.h>
#endif

#endif


class CFindFile
{
public:

    static CFindFile*   CreateFindFile( const char *path,
				    const char *delimiter,
				    const char *pattern,
				    IUnknown** ppCommonObj = NULL);

	virtual ~CFindFile();

	    // operations
	    // calls to find first/find next return the filename
	    // without the path information.
	    char *	FindFirst();
	    char *	FindNext ();

	    // queries
	    char*	GetCurFilename ()   { return m_curFilename; } ;
	    char*	GetCurDirectory ()  { return m_curDir; } ;
	    char*	GetCurFilePath()    { return m_pFilePath; };

protected:
	// construct with search path, search path delimiter, and
	// file-matching pattern.
	CFindFile	(const char *path,
				const char *delimiter,
				const char *pattern);

	CHXString	m_searchPath;
	char *	m_searchPathDelimiter;
	char *	m_pattern;
	char *	m_curFilename;
	char *  m_curDir;
	char*	m_pFilePath;

	BOOL 	m_started;

	//
	// each OS must define these!
	//

	// the directory methods are used to iterate through
	// the entire contents of a single directory
	virtual BOOL	OS_OpenDirectory (const char * dirName) = 0;
	virtual char *	OS_GetNextFile () = 0;
	virtual void	OS_CloseDirectory () = 0;

	// the pattern methods are used to initialize the
	// pattern-matching routines and then compare
	// individual filenames to the specified pattern.
	virtual BOOL	OS_InitPattern () = 0;
	virtual BOOL	OS_FileMatchesPattern (const char * fname) = 0;
	virtual void 	OS_FreePattern () = 0;
};

#endif // __FINDFILE_H