cog/Spotlight/NSComparisonPredicate+CogPr...

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//
// NSComparisonPredicate+CogPredicate.m
// Cog
//
// Created by Matthew Grinshpun on 14/02/08.
// Copyright 2008 __MyCompanyName__. All rights reserved.
//
#import "NSComparisonPredicate+CogPredicate.h"
// Ignore case and diacritics
static const unsigned OPTIONS = (NSCaseInsensitivePredicateOption|
NSDiacriticInsensitivePredicateOption);
@implementation NSComparisonPredicate (CogPredicate)
+ (NSPredicate*)predicateForMdKey:(NSString *)key
withString:(NSString *)aString
exactString:(BOOL)exactString
{
// We don't want an exact string, so wrap it in wildcards
if(!exactString)
aString = [NSString stringWithFormat:@"*%@*", aString];
return [NSComparisonPredicate
predicateWithLeftExpression:[NSExpression expressionForKeyPath:key]
rightExpression:[NSExpression expressionForConstantValue:aString]
modifier:NSDirectPredicateModifier
type:NSLikePredicateOperatorType
options:OPTIONS];
}
@end