validates_format_of :with => URI::regexp(%w(http https)) issue
67764
Rails: What's a good way to validate links (URLs)?
27647
How to check whether a string is a valid HTTP URL?
37154
How to prevent US post code formats
141693
Why is this match pattern unreachable when using non-literal patterns?
101511
Is there a PHP function that can escape regex patterns before they are applied?
4589
PHP validation/regex for URL
5725
Create preg_match for password validation allowing (!@#$%)
137184
RegEx to parse or validate Base64 data
33209
Regex to match URL end-of-line or "/" character
121163
Force a browser to load the 'https' edition of a website, not the 'http'?
122745
Is a link without the protocol valid XHTML? i.e.
14522
When are you supposed to use escape instead of encodeURI / encodeURIComponent?
113208
Validating URL in Java
131647
How do I encode HTTP GET query strings in Perl?
130687
Regular expression for URL
60913
Problem with digits in URLs when using mathspec and hyperref
82106
Rails simple_form server side validations lost URL params