RegExp: symbol + length validation

Asked Jun 05 '17 at 13:50

Active Jun 05 '17 at 14:00

Viewed 23 times

I want to make a pretty lean phone validation - digits, hyphens and spaces, no less than 6 symbols.

\d+[- ] does what I want but I want to check the length too. Obviously, (\d+[- ]){6,15} doesn't work but I imagine it to be something similar. I'd like to limit the length of the whole string too.

Some things I'd like to be valid:
- 0123456789
- 1-800-555-2468
- 1 234 4567

edited Jun 05 '17 at 14:00

asked Jun 05 '17 at 13:50

Vergil Penkov

So what is the maximum length? – Arg0n Jun 05 '17 at 13:53
can you share what sort of phone numbers will be valid? – yılmaz Jun 05 '17 at 13:54
Lots of people would ask: why not use `str.length >= 6`? – Wiktor Stribiżew Jun 05 '17 at 13:55
[\d\- ]{6,} matches a string of at least 6 characters, from a set of digits, hyphens and spaces I don't think it would be a solution to your problem though. Can you post example types of phone numbers to validate? – Oliver Jenkins Jun 05 '17 at 13:56
@WiktorStribiżew I was wondering if I could do it with regex only. To the other guys, I've added examples. – Vergil Penkov Jun 05 '17 at 13:58
Yes, it is possible. Still, your question is not clear: do you want to limit the whole string, or the number of digits only. – Wiktor Stribiżew Jun 05 '17 at 13:58
@WiktorStribiżew I've clarified the question. Still, it was about regular expressions, not about phone validation, shouldn't be a duplicate. – Vergil Penkov Jun 05 '17 at 14:02
@VergilPenkov You do not have to re-invent a wheel. Use `^(?=.{6,})\d+(?:[ -]\d+)*$` or something like that. – Wiktor Stribiżew Jun 05 '17 at 14:03
@Vergil Penkov (?=(\d+([ -]{1}\d+)*)$)(?:.{6,}) – yılmaz Jun 05 '17 at 14:12

RegExp: symbol + length validation

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