Ticket #45: NSString-Extensions.m

/*
 * NSString-Extensions.m
 * Sapphire
 *
 * Created by Graham Booker on Jun. 30, 2007.
 * Copyright 2007 Sapphire Development Team and/or www.nanopi.net
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it under the terms of the GNU
 * General Public License as published by the Free Software Foundation; either version 3 of the License,
 * or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
 * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
 * Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along with this program; if not,
 * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#import "NSString-Extensions.h"

@implementation NSString (PostStrings)
- (NSString *)URLEncode
{
        /*Create a new one using the CFURL function*/
        NSString *encoded = (NSString *) CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault, (CFStringRef)self, CFSTR(" "), CFSTR("?=&+"), kCFStringEncodingUTF8);
        /*Return it*/
        NSString *result = [encoded stringByReplacingAllOccurancesOf:@" " withString:@"+"];
        [encoded release];
        return result;
}
@end

@implementation NSString (Replacements)
- (NSString *)stringByReplacingAllOccurancesOf:(NSString *)search withString:(NSString *)replacement
{
        NSMutableString *mut = [[self mutableCopy] autorelease];
        [mut replaceAllOccurancesOf:search withString:replacement];
        return [NSString stringWithString:mut];
}
@end

@implementation NSString (Additions)
+ (NSString *)stringByCroppingDirectoryPath:(NSString *)directoryPath toLength:(int)requestedLength
{
        int dirLength=[[directoryPath pathComponents] count];
        NSString *returnPath=directoryPath ;
        if(dirLength>requestedLength)
        {
                NSRange croppedRange;
                croppedRange.location=dirLength-requestedLength;
                croppedRange.length=requestedLength;
                returnPath=[NSString stringWithFormat:@" .../%@",[NSString pathWithComponents:[[directoryPath pathComponents] subarrayWithRange:croppedRange]]];
        }
        return returnPath;
}

- (NSComparisonResult)nameCompare:(NSString *)other
{
        NSString *myShortenedName=nil ;
        NSString *otherShortenedName=nil ;
        /* Make sure we get titles leading with "A" & "The" where the belong */
        if([[self lowercaseString] hasPrefix:@"a "] && [self length]>2)
                myShortenedName=[self substringFromIndex:2];
        else if([[self lowercaseString] hasPrefix:@"the "] && [self length]>4)
                myShortenedName=[self substringFromIndex:4];
        if([[other lowercaseString] hasPrefix:@"a "]&& [other length]>2)
                otherShortenedName=[other substringFromIndex:2];
        else if([[other lowercaseString] hasPrefix:@"the "] && [other length]>4)
                otherShortenedName=[other substringFromIndex:4];
        
        if(myShortenedName==nil)
                myShortenedName=self;
        if(otherShortenedName==nil)
                otherShortenedName=other;
        
        return [myShortenedName compare:otherShortenedName options:NSCaseInsensitiveSearch | NSNumericSearch];
}

@end


@implementation NSMutableString (Replacements)
- (void)replaceAllOccurancesOf:(NSString *)search withString:(NSString *)replacement
{
        [self replaceOccurrencesOfString:search withString:replacement options:0 range:NSMakeRange(0, [self length])];
}
@end