Regex validation problem

([1-2]{0,1}[1-9]{1})|([3]{1}[0-2]{1})

I am trying to validate for numbers between 1-32 which is the valid
range using the above regex in a asp:regexpvalidator. However it
accepts numbers 1-29 correctly but does not accept 30-32 (this is meant
to be handled by the part of the regex after the pipe | char).

Does anyone know why this does not work?

Rasika.

PS. I am unable to use the range validator in this situation.

re: Regex validation problem

Hi.

mmm, if I were you, I'd probably use this RegEx:
([1-32]{1,})

(It takes the greatest number from 1 to 32: if you write 12 it takes 12 and
not only 1.)

Does it work for you?

Lorenzo


"Rasika WIJAYARATNE" <rasikaw@gmail.com> ha scritto nel messaggio
news:1151305048.174082.75490@i40g2000cwc.googlegro ups.com...[color=blue]
> ([1-2]{0,1}[1-9]{1})|([3]{1}[0-2]{1})
>
> I am trying to validate for numbers between 1-32 which is the valid
> range using the above regex in a asp:regexpvalidator. However it
> accepts numbers 1-29 correctly but does not accept 30-32 (this is meant
> to be handled by the part of the regex after the pipe | char).
>
> Does anyone know why this does not work?
>
> Rasika.
>
> PS. I am unable to use the range validator in this situation.
>[/color]

re: Regex validation problem

> Hi.[color=blue]
>
> mmm, if I were you, I'd probably use this RegEx:
> ([1-32]{1,})
>
> (It takes the greatest number from 1 to 32: if you write 12 it takes 12 and
> not only 1.)
>[/color]

No, it doesn't. Regex knows nothing about numbers, it only knows about
characters. This regex means:
characters from '1' to '3', plus '2', repeated one or more times.
It does match "12", it also should match "112", but it doesn't match
"29".

Hans Kesting

re: Regex validation problem

> ([1-2]{0,1}[1-9]{1})|([3]{1}[0-2]{1})[color=blue]
>
> I am trying to validate for numbers between 1-32 which is the valid
> range using the above regex in a asp:regexpvalidator. However it
> accepts numbers 1-29 correctly but does not accept 30-32 (this is meant
> to be handled by the part of the regex after the pipe | char).
>
> Does anyone know why this does not work?
>
> Rasika.
>
> PS. I am unable to use the range validator in this situation.[/color]

Switch the parts around:
([3]{1}[0-2]{1}) | ([1-2]{0,1}[1-9]{1})
(spaces added for clarity)

Hans Kesting