project_files/HedgewarsMobile/Classes/NSStringExtra.m
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     1 /*
       
     2  * Hedgewars-iOS, a Hedgewars port for iOS devices
       
     3  * Copyright (c) 2009-2010 Vittorio Giovara <vittorio.giovara@gmail.com>
       
     4  *
       
     5  * This program is free software; you can redistribute it and/or modify
       
     6  * it under the terms of the GNU General Public License as published by
       
     7  * the Free Software Foundation; version 2 of the License
       
     8  *
       
     9  * This program is distributed in the hope that it will be useful,
       
    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
       
    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
       
    12  * GNU General Public License for more details.
       
    13  *
       
    14  * You should have received a copy of the GNU General Public License
       
    15  * along with this program; if not, write to the Free Software
       
    16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
       
    17  *
       
    18  * File created on 21/09/2010.
       
    19  */
       
    20 
       
    21 
       
    22 #import "NSStringExtra.h"
       
    23 
       
    24 @implementation NSString (extra)
       
    25 
       
    26 -(BOOL) appendToFile:(NSString *)path {
       
    27     NSOutputStream* os = [[NSOutputStream alloc] initToFileAtPath:path append:YES];
       
    28     NSData *allData = [self dataUsingEncoding:NSUTF8StringEncoding];
       
    29 
       
    30     [os open];
       
    31     [os write:[allData bytes] maxLength:[allData length]];
       
    32     [os close];
       
    33     
       
    34     [os release];
       
    35     return YES;
       
    36 }
       
    37 
       
    38 
       
    39 // by http://iphonedevelopment.blogspot.com/2010/08/nsstring-appendtofileusingencoding.html
       
    40 -(BOOL) appendToFile:(NSString *)path usingEncoding:(NSStringEncoding) encoding {
       
    41     NSFileHandle *fh = [NSFileHandle fileHandleForWritingAtPath:path]; 
       
    42     if (fh == nil)
       
    43         return [self writeToFile:path atomically:YES encoding:encoding error:nil];
       
    44     
       
    45     [fh truncateFileAtOffset:[fh seekToEndOfFile]];
       
    46     NSData *encoded = [self dataUsingEncoding:encoding];
       
    47     
       
    48     if (encoded == nil) 
       
    49         return NO;
       
    50     
       
    51     [fh writeData:encoded];
       
    52     return YES;
       
    53 }
       
    54 
       
    55 @end