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Re: File I/O
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Re: File I/O


  • Subject: Re: File I/O
  • From: Jason Coco <email@hidden>
  • Date: Fri, 19 Sep 2008 17:29:45 -0400


On Sep 19, 2008, at 17:20 , Nick Zitzmann wrote:


On Sep 19, 2008, at 3:15 PM, Jordon Hirshon wrote:

How can I read a file a line at a time (i.e. getline)? I'm trying to do this in a Cocoa Framework.


Try using NSFileHandle to read a file until a line feed is encountered. There's no built-in method of stopping at a character, but you could always read it in byte by byte.

Or you could read the file into a string and split it with \n, although Nick's method is probably more efficient:


NSError *error;
// use the proper encoding if it's not UTF-8
NSString *string = [[NSString alloc] initWithContentsOfFile:path encoding:NSUTF8StringEncoding error:&error];
if( !string ) { /* do something with the error */ }


NSArray *lines = [[string componentsSeparatedByString:@"\n"] retain]; // assuming line terminator is \n for this file
[string release];


for( NSString *line in lines ) {
	// process each line
}
[lines release];

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References: 
 >File I/O (From: Jordon Hirshon <email@hidden>)
 >Re: File I/O (From: Nick Zitzmann <email@hidden>)

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