[SOLVED] Escape character for regex validation

Hi there,

How can I escape a forward slash in the custom regex validation for text fields?

Back slash doesn't work and it is considered as a character.I have also tried double back slash with no luck. Tried to use different string delimiters {} ## in order to use the forward slash as a character with no more luck.

I see a very odd behaviour where if I type as regex
the string that gives a match is:
hence why I said that the backslash was being considered as a character. I didn't escape the dots because I was seeing the same behaviour from the back slash and I realised I was able to achieve a match with no escaping.

Something odd is going on in CB since I have been trying regex validation for a while with expressions that work and match the expected strings in reliable online regex simulators but they don't work in CB.

But I'd be happy if I can escape or match the forward slashes in any way since I seem to be able to match the rest after throwing the regex book out the window and doing fair amount of trial and error

thanks

You need to supply a full valid REGEXP. Using a REGEXP builder program helps a lot with this. For example I have been using RegexBuddy for years now. The below should work fine.

HTTPS or HTTP
HTTPS only
HTTP only
The delimiter can be whatever is needed. In this case % is used as the standard / is needed in the strict. You could just escape / of course, but it doesn't really matter.

Hi Kyle,

Thank you for your fast response.

Unfortunately the examples you provided don't seem to work in my installation (Joomla 3.4.1 and CB 2.0..

As soon as I change the delimiters, using %,#, or {, there is no validation going on. CB will take any string.

Validation only seems to get enabled by using standard forward slash delimiters. Which then forces to use escaping for including forward slashes in the strict.

And as per my previous post either escaping does no work or I haven't found the right way of escaping characters in CB. I have tried back slash, double backslash, and they don't work as escaping character.

did you test your validations on a CB text field?

There's 2 forms of validation. Browser (done via jQuery) and server side (done via PHP). Which validation is failing? Looks like there might be some strict validation on the regexp it self that's being applied. The below is with / delimiter.

It was the jQuery validation. It was a browser problem, updating Firefox fixed the issue. I should have tried with a different browser, apologies. Thanks a lot for your help!