nsmutablestring – Tarik Billa

Appending to the end of a file with NSMutableString

August 19, 2023 by Tarik

I guess you could do a couple of things: NSFileHandle *fileHandle = [NSFileHandle fileHandleForWritingAtPath:aPath]; [fileHandle seekToEndOfFile]; [fileHandle writeData:[textToWrite dataUsingEncoding:NSUTF8StringEncoding]]; [fileHandle closeFile]; Note that this will append NSData to your file — NOT an NSString. Note that if you use NSFileHandle, you must make sure that the file exists before hand. fileHandleForWritingAtPath will return nil if … Read more

Objective C: convert a NSMutableString in NSString

February 26, 2023 by Tarik

Either via: NSString *immutableString = [NSString stringWithString:yourMutableString]; or via: NSString *immutableString = [[yourMutableString copy] autorelease]; //Note that calling [foo copy] on a mutable object of which there exists an immutable variant //such as NSMutableString, NSMutableArray, NSMutableDictionary from the Foundation framework //is expected to return an immutable copy. For a mutable copy call [foo mutableCopy] instead. … Read more

How to see if an NSString starts with a certain other string?

November 16, 2022 by Tarik

Try this: if ([myString hasPrefix:@”http”]). By the way, your test should be != NSNotFound instead of == NSNotFound. But say your URL is ftp://my_http_host.com/thing, it’ll match but shouldn’t.