Sscanf Equivalent in Objective-C

Question

I\'m currently writing a wavefront OBJ loader in Objective-C and I\'m trying to figure out how to parse data from an NSString in a similar manner to the sscanf() function in

Answer 1

To go from an NSString to an C-String (char *), use

NSString *str = @"string";
const char *c = [str UTF8String];

Alternatively,

NSString *str = @"Some string";
const char *c = [str cStringUsingEncoding:NSUTF8StringEncoding];

Provide access to the sscanf() function.

To go the other way, use

const *char cString = "cStr";
NSString *string = [NSString stringWithUTF8String:cString];

Or

const *char cString = "cStr";
NSString *myNSString = [NSString stringWithCString:cString encoding:NSASCIIStringEncoding];

From a pure ObjC standpoint, NSScanner provides the -scanInteger or -scanFloat methods to pull ints and floats out of a string.

NSScanner *aScanner = [NSScanner scannerWithString:string];
[aScanner scanInteger:anInteger];