NSString+SFHFUtils.m

//
//  NSString+SFHFUtils.m
//  Delicious Client
//
//  Created by Buzz Andersen on Fri May 14 2004.
//  Copyright (c) 2004 Sci-Fi Hi-Fi. All rights reserved.
//

#import "NSString+SFHFUtils.h"


@implementation NSString (SFHFUtils)

- (NSString *) stringByUnescapingEntities: (NSDictionary *) entitiesDictionary {
    NSString *unescapedString = (NSString *) CFXMLCreateStringByUnescapingEntities(NULL, (CFStringRef) self, (CFDictionaryRef) entitiesDictionary);
    return [unescapedString autorelease];
}

- (NSString *) stringByAddingPercentEscapesUsingEncoding: (NSStringEncoding) encoding legalURLCharactersToBeEscaped: (NSString *) legalCharacters {
	NSString *escapedString = (NSString *) CFURLCreateStringByAddingPercentEscapes(NULL, (CFStringRef) self, NULL, (CFStringRef) legalCharacters, CFStringConvertNSStringEncodingToEncoding(encoding));
	return [escapedString autorelease];
}

- (NSString *) stringByReplacingPercentEscapes {
    return [(NSString*) CFURLCreateStringByReplacingPercentEscapes(NULL, (CFStringRef) self, CFSTR("")) autorelease];
}

- (NSString *)URLEncodedString {
	NSString *legalURLCharactersToBeEscaped = @"&?";
	CFStringRef percentEscapedString = CFURLCreateStringByAddingPercentEscapes(NULL, (CFStringRef)self, NULL, (CFStringRef)legalURLCharactersToBeEscaped, kCFStringEncodingUTF8);
	NSString *retVal = [[NSString alloc] initWithString: (NSString *)percentEscapedString];
	CFRelease(percentEscapedString);
	return [retVal autorelease];
}

@end