Reg. Expression

[Werner]

Hi
.. somebody around who is easy with Reg. Exressions.
For me a nightmare.

I have to Validate this format: 0-0000 0000 and/or 0-0000 0000/0 and/or 0-0000 0000/00
Would be a great help..

I have got: (^\d-\d{4} \d{4}(/\d{2})?$)|(^I\d{8}$)|(^$)

tried:
validates :project_number, :format => { :with => /(^\d-\d{4} \d{4}(/\d{2})?$)|(^I\d{8}$)|(^$)/, :message => "Message"}

But that seems to be not valid.

Thanks

[Jordon Bedwell]

On Mon, May 27, 2013 at 6:38 AM, Werner <webagent...@googlemail.com> wrote:
> Hi
> .. somebody around who is easy with Reg. Exressions.
> For me a nightmare.
>
> I have to Validate this format: 0-0000 0000 and/or 0-0000 0000/0 and/or
> 0-0000 0000/00

\A\d\-\d{4}\s\d{4}(?:\/\d{1,2})?\Z

- needs to be escaped, it's a range indicator. Don't use ^$ unless
you want to be tricked by multi-line matches, which I'm sure is not
what you want. For a simple regexp like the one you needed, the above
simple one is much better, fancy regexps for simple cases is kinda
annoying to manage.

[Werner Laude]

Am 27.05.2013 um 16:33 schrieb Jordon Bedwell <envy...@gmail.com>:

> On Mon, May 27, 2013 at 6:38 AM, Werner <webagent...@googlemail.com> wrote:
>> Hi
>> .. somebody around who is easy with Reg. Exressions.
>> For me a nightmare.
>>
>> I have to Validate this format: 0-0000 0000 and/or 0-0000 0000/0 and/or
>> 0-0000 0000/00
>
> \A\d\-\d{4}\s\d{4}(?:\/\d{1,2})?\Z
>
> - needs to be escaped, it's a range indicator. Don't use ^$ unless
> you want to be tricked by multi-line matches, which I'm sure is not
> what you want. For a simple regexp like the one you needed, the above
> simple one is much better, fancy regexps for simple cases is kinda
> annoying to manage.

Thanks very much..

validates :project_number, :format => { :with => /\A\d\-\d{4}\s\d{4}(?:\/\d{1,2})?\Z/, :message => "Message"}

works perfect..

>
>> Would be a great help..
>>
>> I have got: (^\d-\d{4} \d{4}(/\d{2})?$)|(^I\d{8}$)|(^$)
>>
>> tried:
>> validates :project_number, :format => { :with => /(^\d-\d{4}
>> \d{4}(/\d{2})?$)|(^I\d{8}$)|(^$)/, :message => "Message"}
>>
>> But that seems to be not valid.
>

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[aman mangal]

Hi,

Try this http://www.regexpal.com

Even I am not expert in Regexp but I always verify from here.

This regular expression should work - /^\d-\d{4} \d{4}((/\d{2})|(/\d{1}))?$/

Aman Mangal

3rd year Undergraduate
Department of Computer Science & Engineering
IIT Bombay
www.cse.iitb.ac.in/~amanmangal

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