Regex for IP Address using unobtrusive data- attributes

Question

I am using the following regex pattern with jquery.validate.js and jquery.validate.unobtrusive.js

I put the regex expression into the data-val-regex-pattern attribute of the input element

\\b(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\b

this works for 127.0.0.1 but doesn't work for 192.168.2.91

I realize I could add a custom rule, but need to use the data-attribute with the built-in regex rule.

Could you create a fiddle for that, because the regex pattern matches both IPs (regexr.com/3cec7). — Capricorn, Commented Dec 17, 2015 at 16:22
Doesn't (25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)[.](25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)[.](25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)[.](25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?) work? — Wiktor Stribiżew, Commented Dec 17, 2015 at 21:57
I think the regex will work, I think something is wrong with the special characters. for instance the \\. — matthewbaskey, Commented Dec 18, 2015 at 9:12

matthewbaskey · Accepted Answer · 2015-12-18 15:05:07Z

1

It turns out that $.ajax was appending the Razor generated HTML into the dom and was adding extra \ character so \b was turning into \\b

answered Dec 18, 2015 at 15:05

matthewbaskey

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