Find an 8 digit string within a string - Objective C

Question

So I have a string that's come out of an OCR library like so:

ALLee;YIeiqm Y E JOHNSON-TEST g jammima g 02345678 8;;Y_(____. g GHJ- 444 4333333333 * BAKERY -- Scones p ii

I want to search through this string and find the "02345678" part. This string can be anything but it is always 8 characters long and all the characters are together. How can I search through the string to find the 1st occurrence of an 8 character contant string without a space or character that isn't in the ranges of A to Z and 0 to 9?

Thanks!

Adam

Use the regular expression: `[A-Za-z0-9]{8}`. – rmaddy Jul 03 '13 at 14:49 — rmaddy, Jul 03 '13 at 14:49

score 7 · Accepted Answer · edited May 23 '17 at 10:32

7

NSString *yourString = @"ALLee;YIeiqm Y E JOHNSON-TEST g jammima g 02345678 8;;Y_(____. g GHJ- 444 4333333333 * BAKERY -- Scones p ii";
NSRegularExpression *regex = [NSRegularExpression         
    regularExpressionWithPattern:@"[A-Za-z0-9]{8}"
    options:NSRegularExpressionCaseInsensitive
    error:&error];
[regex enumerateMatchesInString:yourString options:0 range:NSMakeRange(0, [yourString length]) usingBlock:^(NSTextCheckingResult *match, NSMatchingFlags flags, BOOL *stop){
    // your code to handle matches here
}];

(code shamelessly nicked from this SO answer).

edited May 23 '17 at 10:32

Community

1
1

answered Jul 03 '13 at 14:52

trojanfoe

120,358
21
212
242

1

The regular expression should include letters too. – rmaddy Jul 03 '13 at 14:54
@rmaddy Doesn't he just want the sequence of numbers? – trojanfoe Jul 03 '13 at 14:55
Read the last sentence of the question. – rmaddy Jul 03 '13 at 14:56
@rmaddy Many thanks - not the first time I've been caught out from not reading the whole question... – trojanfoe Jul 03 '13 at 14:57

Find an 8 digit string within a string - Objective C

1 Answers1