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I've got string like this: {{0,168},{20,20}}, here indicates two points. I want to get them out to initialize my CCPoint. Do you guys know how to convert this?

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If the string is in json format, or you can change to it, use a parser: – nosferat Jul 16 '13 at 9:23

An easy fix , if you have string in that specific format:

CGRect rect = CGRectFromString(@"{{0,168},{20,20}}");
CGPoint point1 = CGPointMake(rect.origin.x, rect.origin.y);
CGPoint point2 = CGPointMake(rect.size.width, rect.size.height);

If you have more and you want to get them use this:

NSString *string = @"{{0,168},{20,20},{20,20},{20,20},{20,20}}";
NSRange range;
range.length = string.length - 1;
range.location = 1;
//because you have commas everywhere you need to change it to a different separator
NSString *modString = [[string substringWithRange:range] stringByReplacingOccurrencesOfString:@"},{" withString:@"}#{"];

NSArray *pointList = [modString componentsSeparatedByString:@"#"];

for (NSString *str in pointList)
    CGPoint point = CGPointFromString(str);
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