Get subString from a string with given indexes

Question

I am trying to get a SubString from a string

This is the method I am calling

-(NSString *)subStringBetweenStrings:(NSString*)str open:(NSString*)open close:(NSString *)close
{
    if ( str == nil || open == nil || close == nil )
        return nil;

    int start = [str rangeOfString:open].location;
    if (start != -1)
    {
        int end = [str rangeOfString:close].location;
        if ( end != -1)
        {
            return [str substringFromIndex:start]; // DONT WANT
        }
    }
    return nil;       
}

I have start point and i have End point. How can i get subString from start and end index something like return [ str subStringWithRange:(start, end)];

The point is that you even didn't try to read to `NSString` documentation ... But I didn't give you this negative point ... — zrzka, Nov 09 '12 at 17:52
right....... so a whole documentation will be always in my mind :) nvrmind — Muhammad Umar, Nov 09 '12 at 17:54
@umar Documentation is available from the Xcode menu Help->Documentation and API Reference. So while the "whole documentation" may not always be in your mind, it can always be at your fingertips. — Extra Savoir-Faire, Nov 09 '12 at 18:18

score 5 · Accepted Answer · answered Nov 09 '12 at 17:46

5

Nitpicking ...

replace int start with NSUInteger, that's how NSRange location is defined,
don't compare start to -1, but to NSNotFound

... answer ...

return [str substringWithRange:NSMakeRange( start, end - start + 1 )]

answered Nov 09 '12 at 17:46

zrzka

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Get subString from a string with given indexes

1 Answers1