How to Find a Substring in the String in Objective-c

Question

I want to find a word in a string i.e,whether a word is present in particular string or not.

String 1 Has:

Case Number
1
SKU Barcode

String 2 Has:

Case Number

I want to find whether Case Number is present in string 1 or not .

if ([string1 rangeOfString:string2].location !=NSNotFound) {

        NSLog(@"matched");} 
else 
{ NSLog(@"not matched");}

but here i am getting not matched ...why ..And then what is the difference of using .location and .length Output:

2017-05-04 11:38:33.128495 Link[26540:17390387] String 1: Case Number
1
SKU Barcode

2017-05-04 11:38:33.129301 Link[26540:17390387] String 2: Case Number

Thanks in advance!

Possible duplicate of [How do I check if a string contains another string in Objective-C?](http://stackoverflow.com/questions/2753956/how-do-i-check-if-a-string-contains-another-string-in-objective-c) — RajeshKumar R, May 04 '17 at 05:09
@RajeshkumarR, I am using same only but why i am getting not matched result ..i am asking that only .Please help me — Chandrika Visvesh, May 04 '17 at 05:14
Could you log `[string1 dataUsingEncoding:NSUTF8StringEncoding]` and the same for `string2`? There may be a invisible space between them or something like that. — Larme, May 04 '17 at 12:22

RajeshKumar R · Answer 1 · 2017-05-04T06:00:59.917

1

NSString *string1 = @"Case Number \n 1 \n SKU Barcode";
NSString *string2 = @"Case Number";
if ([string1 rangeOfString:string2].location !=NSNotFound) {

    NSLog(@"matched");}
else
{ NSLog(@"not matched");}

}

It works for me.

edited May 04 '17 at 06:00

answered May 04 '17 at 05:31

RajeshKumar R

13,989
2
35
63

,String one 1 has three lines ,case number is in 1st line ,1 in 2nd line , SKU Barcode in 3 rd line – Chandrika Visvesh May 04 '17 at 05:50
Can you show how you've created string1 and string2? – RajeshKumar R May 04 '17 at 05:53
It is coming from server , i have not created this string – Chandrika Visvesh May 04 '17 at 05:59
@ChandrikaVisvesh Can you NSLog string1 and string2 and paste here? – RajeshKumar R May 04 '17 at 06:00
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/143352/discussion-between-rajeshkumar-r-and-chandrika-visvesh). – RajeshKumar R May 04 '17 at 06:48

score 0 · Answer 2 · answered May 04 '17 at 06:50

If you are supporting iOS 8.0 onwards, you can use containsString:

if ([string1 containsString:string2])
    NSLog(@"matched");
else
    NSLog(@"not matched");

If this doesn't work, then there's something wrong with one or both of your strings (e.g. additional space or control characters at the end).

score 0 · Answer 3 · answered May 08 '17 at 21:38

0

Your string2 contains characters other than @"Case Number". Test by inserting the following lines into your code.

if([string2 isEqualToString:@"Case Number"]) NSLog(@"String 2 is OK");
else NSLog(@"String 2 is bad!");

answered May 08 '17 at 21:38

digitalR

11
6

How to Find a Substring in the String in Objective-c

3 Answers3