File: programming/cocoa/UKDirectoryEnumerator.zip/UKDirectoryEnumerator/NSString CarbonUtilities.m

/* =============================================================================
    PROJECT:    Filie
    FILE:       NSString+CarbonUtilities.m
    
    COPYRIGHT:  (c) 2002 by Nathan Day, all rights reserved.
    
    AUTHORS:    Nathan Day - ND
    
    LICENSES:   GNU GPL, Modified BSD
    
    REVISIONS:
        2002-08-03  ND  Created.
   ========================================================================== */
 
// -----------------------------------------------------------------------------
//  Headers:
// -----------------------------------------------------------------------------
 
#import "NSString+CarbonUtilities.h"
 
/*
 * class implementation NSString (CarbonUtilities)
 */
@implementation NSString (CarbonUtilities)
 
/*
 * +stringWithFSRef:
 */
+ (NSString *)stringWithFSRef:(const FSRef *)aFSRef
{
	UInt8			thePath[PATH_MAX + 1];		// plus 1 for \0 terminator
	
	return (FSRefMakePath ( aFSRef, thePath, PATH_MAX ) == noErr) ? [NSString stringWithUTF8String:thePath] : nil;
}
 
/*
 * -getFSRef:
 */
- (BOOL)getFSRef:(FSRef *)aFSRef
{
	return FSPathMakeRef( [self UTF8String], aFSRef, NULL ) == noErr;
}
 
/*
 * -resolveAliasFile
 */
- (NSString *)resolveAliasFile
{
	FSRef			theRef;
	Boolean		theIsTargetFolder,
					theWasAliased;
	NSString		* theResolvedAlias = nil;;
 
	[self getFSRef:&theRef];
 
	if( (FSResolveAliasFile ( &theRef, YES, &theIsTargetFolder, &theWasAliased ) == noErr) )
	{
		theResolvedAlias = (theWasAliased) ? [NSString stringWithFSRef:&theRef] : self;
	}
 
	return theResolvedAlias;
}
 
@end