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
{
	if( !aFSRef )
		return nil;
	UInt8			thePath[PATH_MAX + 1];		// plus 1 for \0 terminator
	
	return (FSRefMakePath ( aFSRef, thePath, PATH_MAX ) == noErr) ? [NSString stringWithUTF8String: (char*) thePath] : nil;
}

/*
 * -getFSRef:
 */
- (BOOL)getFSRef:(FSRef *)aFSRef
{
	return FSPathMakeRef( (UInt8*) [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