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macOS Array created from separator?

Buschmaster

Buschmaster

macrumors 65816
Original poster
Anyone know of an easy way to create an array from a designated separator in obj-c?

What I mean is I want to create an array like
Code: 
{hello,world,how,are,you}

out of something like:
Code: 
@"hello:world:how:are:you"

There is a way around this for me but if someone knows of a way to do this I can really cut out quite a few middle men.
 
Buschmaster said:
Anyone know of an easy way to create an array from a designated separator in obj-c?

What I mean is I want to create an array like
Code: 
{hello,world,how,are,you}

out of something like:
Code: 
@"hello:world:how:are:you"
Click to expand...

Code: 
- (NSArray *)componentsSeparatedByString:(NSString *)separator

Something like:

Code: 
#import <Foundation/Foundation.h>

int main(int argc, char *argv[]) {
  NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
  NSString *myString = @"Hello:World,:how:are:you?";
  NSArray *myComponents = [myString componentsSeparatedByString:@":"];
  int compLength = [myComponents count];
  unsigned int x = 0;
  for(x = 0; x < compLength; x++) {
    NSLog(@"Component %u is: %@",x+1,[myComponents objectAtIndex:x]);
  }
  [pool release];
  return 0;
}

I am assuming you wanted an NSArray of NSStrings, but you didn't say for sure. You can get a real id array from this, but I wouldn't recommend it.

-Lee

Eh, just in case:
Code: 
#import <Foundation/Foundation.h>

int main(int argc, char *argv[]) {
  NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
  NSString *myString = @"Hello:World,:how:are:you?";
  NSArray *myComponents = [myString componentsSeparatedByString:@":"];
  int compLength = [myComponents count];
  id *myTerribleCStyleArray = malloc(compLength * sizeof(id));
  [myComponents getObjects:myTerribleCStyleArray];
  
  unsigned int x = 0;
  for(x = 0; x < compLength; x++) {
    NSString *oneString = myTerribleCStyleArray[x];
    NSLog(@"Component %u is: %@",x+1,oneString);
  }
  
  [pool release];
  return 0;
}

This will be equivalent to:
Code: 
  NSString *mySecondTerribleArray[] = {@"Hello",@"World,",@"how",@"are",@"you?"};
  for(x = 0; x < 5;  x++){
    NSString *oneString = mySecondTerribleArray[x];
    NSLog(@"Component %u is: %@",x+1,oneString);
  }

This most resembles what you posted, but again, I hope it's not what you really want.

-Lee
 
lee1210 said:
Code: 
- (NSArray *)componentsSeparatedByString:(NSString *)separator

Something like:

Code: 
#import <Foundation/Foundation.h>

int main(int argc, char *argv[]) {
  NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
  NSString *myString = @"Hello:World,:how:are:you?";
  NSArray *myComponents = [myString componentsSeparatedByString:@":"];
  int compLength = [myComponents count];
  unsigned int x = 0;
  for(x = 0; x < compLength; x++) {
    NSLog(@"Component %d is: %@",x+1,[myComponents objectAtIndex:x]);
  }
  [pool release];
  return 0;
}

I am assuming you wanted an NSArray of NSStrings, but you didn't say for sure. You can get a real id array from this, but I wouldn't recommend it.

-Lee
Click to expand...
Ah, componenetsSeparatedByString is just what I was looking for! Thanks!
 
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