In c#, i gotta verify user inputs. Can someone tell me what will be the reg ex in order to verify this expression 12345-4521.
<12345> = Any five digits only
<-> = only hyphen
<4521> = Any four digits only but last digit should either be 0 or 1.
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58answers:
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A:
This should do it:
\d{5}-\d{3}[01]
Explanation:
- The
\dmatches any digit from 0 through 9 - The
[01]matches a 0 or 1 - The
{5}and{3}tells it to match exactly that number of the previous expression
This is pretty basic stuff. When you get a chance, you should read a good tutorial, which covers this (and much more).
Chris B.
2010-07-05 17:50:48
Your solution is missing caret. donc not working as per need. Accepting more than 5 chars
Novice
2010-07-05 18:20:20
No, it's not anchored; if you're not testing the length of the string you need to add `^` and `$`. Many regex libraries allow you to distinguish between a _match_ and a _search_, apparently c# does not, which requires you to be explicit.
Chris B.
2010-07-05 18:31:28