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Re: NSString -componentsSeparatedByString: line break
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Re: NSString -componentsSeparatedByString: line break


  • Subject: Re: NSString -componentsSeparatedByString: line break
  • From: Chase Meadors <email@hidden>
  • Date: Mon, 27 Jul 2009 12:36:27 -0500

Thanks guys, except now I'm having a new problem. My array of lines is now containing empty strings that actually report a length of zero. This would be fine, except when I try to filter the array to get rid of these empty lines,

[array filterUsingPredicate:[NSCompoundPredicate notPredicateWithSubpredicate:[NSPredicate predicateWithFormat:@"SELF LIKE %@", @""]]];

this code has no affect. These empty strings have a length of 0 so they would have to be just empty strings. Other filtering predicates work fine. Is this a problem with the predicate?

On Jul 26, 2009, at 9:57 PM, Rob Keniger wrote:


On 27/07/2009, at 12:23 PM, Adam R. Maxwell wrote:


On Jul 26, 2009, at 7:11 PM, Greg Guerin wrote:

Chase Meadors wrote:

If the length of this mystery string is 1 and it's not a space, what is it???

Use -characterAtIndex:0 and print the returned unichar using the "%x" format.

Another sometimes-handy trick is to create a mutable copy and call CFStringTransform with kCFStringTransformToUnicodeName.


You should also look at -getLineStart:end:contentsEnd:forRange: if you're parsing lines of text, as it takes into account a variety of possible line endings, not just \n.

--
Rob Keniger



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  • Follow-Ups:
    • Re: NSString -componentsSeparatedByString: line break
      • From: Shawn Erickson <email@hidden>
References: 
 >Re: NSString -componentsSeparatedByString: line break (From: Greg Guerin <email@hidden>)
 >Re: NSString -componentsSeparatedByString: line break (From: "Adam R. Maxwell" <email@hidden>)
 >Re: NSString -componentsSeparatedByString: line break (From: Rob Keniger <email@hidden>)

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