Re: NSMutableString -initWithFormat appends to existing text

[Riccardo Mottola]

Hi Mick,


Mick Bert wrote:
> I mean: now, that I applied the above suggestion, it works ^__^

the mantra is: allocate and init once.
For static classes, that's also the only thing you can do (e.g. NSArray, 
NSString....) for mutable objects, then you need to use mutation methods 
(e.g. NSMutableString, NSMutableArray....)


> With test-oriented i mean generic text streams, organized as a 
> sequence of
> variable length lines, separated by new-line character. Very generic readable
> text.
>
> I cannot load the entire file in memory, because it is too big. Thus I
> process it
> line by line, writing the output in an other file.

You can write the stream directly, it may work for you, also for quite 
big data, it is efficient.

Otherwise indeed, work with NSFileHandle

https://www.gnu.org/software/gnustep/resources/documentation/Developer/Base/Reference/NSFileHandle.html


Riccardo