Re: NSString and string contains

FROM : Andrew Merenbach
DATE : Sun Mar 02 22:44:22 2008

Hi, Tom,

You probably want to use enumerators and something like the following 
code:

> NSEnumerator *e = [array objectEnumerator];
> NSString *string;
>
> while ((string = [e nextObject])) {
>     NSRange range = [string rangeOfString:@"home"];
>     if (range.location != NSNotFound) {
>         NSLog(@"I found home in the string %@", string);
>     }
> }


The enumerator does what your for-loop does, except that it gives you 
the objects rather than making you use -objectAtIndex:.  Additionally, 
the NSRange struct gives you a location, from -rangeOfString:, where 
the found string -- if it isn't the location NSNotFound, which may be 
self-explanatory -- where the string was found, and thus tells you 
whether it was found in the first place.

Cheers,
   Andrew



On Mar 2, 2008, at 12:31 PM, Tom Jones wrote:

> Hello,
> I'm fairly new to Cocoa, so please excuse me if I'm not using the 
> right terminology.
>
> I have an NSArray which contains String values and I want to loop 
> though it and determine if any of those string contain words I'm 
> looking for. I have tried but have been unsuccessful.
>
> Example...
>
> unsigned arrayCount = [array count];
> for(unsigned j = 0; j < arrayCount; j++)
> {
>     id obj;
>     obj = [array objectAtIndex:j];
>     /* Here is where I'm having trouble
>     I know this is not real :-)
>     if ( [obj inStr:@"home"])
>     {
>         NSLog(@"I found home, %@", obj);
>     }
>     */
> }
>
>
> I hope the example helps, thanks,
> tom
>
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