//
// Copyright (c) Zach Wily
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without modification, 
// are permitted provided that the following conditions are met:
// 
// - Redistributions of source code must retain the above copyright notice, this 
//     list of conditions and the following disclaimer.
// 
// - Redistributions in binary form must reproduce the above copyright notice, this
//     list of conditions and the following disclaimer in the documentation and/or 
//     other materials provided with the distribution.
// 
// - Neither the name of Zach Wily nor the names of its contributors may be used to 
//     endorse or promote products derived from this software without specific prior 
//     written permission.
// 
//  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
//  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
//  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
//  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR 
//  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
//  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
//   LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 
//  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
//  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
//  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
 
#import "ZWAlbumNameFormatter.h"
 
NSString *ZWInvalidAlbumNameCharacters = @"\\/*?\"'&<>|.+# ";
 
@implementation ZWAlbumNameFormatter
 
- (NSString*)stringForObjectValue:(id)obj
{
    return obj;
}
 
- (BOOL)getObjectValue:(id *)obj
             forString:(NSString *)string
      errorDescription:(NSString **)errorString
{
    *obj = string;
    return YES;
}
 
- (BOOL)isPartialStringValid:(NSString *)partial
            newEditingString:(NSString **)newString
            errorDescription:(NSString **)errorString
{
    if ([partial length] == 0) 
        return YES;
    
    NSRange found = [partial rangeOfCharacterFromSet:
        [NSCharacterSet characterSetWithCharactersInString:ZWInvalidAlbumNameCharacters]];
    if (found.location != NSNotFound) {
        *errorString = @"Invalid character";
        return NO;
    }
    
    return YES;
}
 
@end