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Re: Simple memory problem
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Re: Simple memory problem


  • Subject: Re: Simple memory problem
  • From: harry greenmonster <email@hidden>
  • Date: Fri, 6 Feb 2009 00:20:56 +0000

"NSMutableString", good idea, I think that will work, will try that thanks.

And thanks everyone else.


On 6 Feb 2009, at 00:16, Shawn Erickson wrote:

On Thu, Feb 5, 2009 at 3:39 PM, harry greenmonster
<email@hidden> wrote:

'inputString' is a 5mb text file,

Since inputString is large you really should avoid causing it to be copied over and over again which -[NSString stringByReplacingCharactersInRange:withString:] is doing. You should instead use a mutable string and -[NSMutableString replaceCharactersInRange:withString:].

NSMutableString* tmpString = [[inputString mutableCopy] autorelease];
while([tmpString isMatchedByRegex:regexString]) {
      range = [tmpString rangeOfRegex:regexString];
      [tmpString replaceCharactersInRange:range withString:@""];
}

-Shawn

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References: 
 >Simple memory problem (From: harry greenmonster <email@hidden>)
 >Re: Simple memory problem (From: Shawn Erickson <email@hidden>)

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