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I am trying to figure out how to get a range of a substring within a string. By range I mean where the substring begins and where it ends. So if I have following string example:
NSString *testString=@"hello everyone how are you doing today?Thank you!"; If the substring I am looking for (in this example) is "how are you doing", then the beginning range should be 15 and the ending range should 31.
(15, 31) Can anyone tell me how I could do this programatically? Thank you!
404
Returns a range of consecutive characters from string, starting with the character whose index is first and ending with the character whose index is last. An index of 0 refers to the first character of the string.
You can get a range of characters(substring) by using the slice function. Python slice() function returns a slice object that can use used to slice strings, lists, tuples. You have to Specify the parameters- start index and the end index, separated by a colon, to return a part of the string.
A substring is a subset or part of another string, or it is a contiguous sequence of characters within a string. For example, "Substring" is a substring of "Substring in Java."
You can use the method -rangeOfString to find the location of a substring in a string. You can then compare the location of the range to NSNotFound to see if the string actually does contain the substring.
NSRange range = [testString rangeOfString:@"how are you doing"]; if (range.location == NSNotFound) { NSLog(@"The string (testString) does not contain 'how are you doing' as a substring"); } else { NSLog(@"Found the range of the substring at (%d, %d)", range.location, range.location + range.length); } If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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