Reg. Expression

rubyonrails-talk
1

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

2

Hi,

3

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.

4

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..