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Re: parsing a string into words
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Re: parsing a string into words


  • Subject: Re: parsing a string into words
  • From: Michael Ash <email@hidden>
  • Date: Fri, 24 Apr 2009 22:08:46 -0400

On Fri, Apr 24, 2009 at 9:24 PM, Gerriet M. Denkmann
<email@hidden> wrote:
>
> I want to parse a string into words.
> Currently I do:
>
> NSString *theString = ....
> NSUInteger stringLength = [ theString length ];
> NATextView *theTextView = [[NSTextView alloc] initWithFrame:
> NSMakeRect(0,0,99,99) ];
> [ theTextView setString: theString ];
>
> for( NSUInteger t = 0; t < stringLength;)
> {
>        NSRange proposedSelRange = NSMakeRange(t,0);
>        NSRange wordRange = [ theTextView
> selectionRangeForProposedRange: proposedSelRange
>
>    granularity:                                    NSSelectByWord
>                                                ];
>        NSString *word = [ theString substringWithRange: wordRange ];
>        t = NSMaxRange( wordRange );
>
>        //      do something with <word>
> };
>
> [ theTextView release ];
>
> but this looks rather wasteful. Is there a more elegant way?
>
> Please note that there are lots of languages, where words are not separated
> by space or punctuation.

If you can require 10.5, use CFStringTokenizer. It is really great,
and is a lot simpler and less evil than this.

Mike
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References: 
 >parsing a string into words (From: "Gerriet M. Denkmann" <email@hidden>)

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