/*

File: ContentFormatting.h

Abstract: Use the PubSub framework to create a simple RSS news reader.

Version: 1.0

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*/

#import <Foundation/Foundation.h>

#import <PubSub/PubSub.h>

// Turns an NSDate into a string with locale-appropriate formatting (names of date and time elements, the

// order of their appearance in the string, the separators used, etc.). Relies upon the appropriate localizations

// existing in the application's main bundle.

NSString* ShortDateString( NSDate* date, BOOL showTime );

// See note for ShortDateString(), above.

NSString* ShortDateTimeString( NSDate* date );

// Returns an array of two objects: the ShortDateString(date, NO), and a 12-hour time string

NSArray *ShortDateAndTimeStrings( NSDate *date );

// Value transformer for an NSDate that always transforms it to a ShortDateTimeString (see above).

@interface ShortDateTimeTransformer : NSValueTransformer

@end

// Value transformer for an NSError that always transforms it to a localized description (string)

@interface ErrorTransformer : NSValueTransformer

@end

// Value transformer for an NSArray that transforms it into an NSArray of its objects' descriptions, comma-delimited

@interface ArrayTransformer : NSValueTransformer

@end

// Value transformer for a PSContent that transforms it to a string appropriate to the MIMEType of the original object

@interface PSContentTransformer : NSValueTransformer

@end

@interface PSEntry (NewsReader)

- (NSString*) nr_GUID;          // Globally Unique ID of this entry (as found in feed)

@end