Validates CPA (Código Postal Argentino, spanish for Argentinian Postal Code).

Validates the two valid postal codes in Argentina

looks for blank keys in the query string and remove it, in order to make shorter request.

MasterCard - ^5[1-5]\d+ Visa - ^4\d+ Amex - ^3[47]\d+ Discover - 6011|65|64...

Funciona para campos decimais para moeda nacional brasileira. Aceita números inteiros, separação por milhar e a separação decimal.

Created for purpose of reading an INI file in C# applications. Supports comments and comment escape characters. I plan to add more escape characters (such as \=). s - Section scp - Section Comment Prefix sc - Section Comment...

Cloud Flare

email format control

Matches any valid JSON object, matches recursively. Passes all JSON test cases I found.

Use this regex to select all characters up to the "" bracket. It works across multiple lines. You can get an email list with only the IDs. This is the pattern it matches: Alpha Person Step 1 (.*) [$ Step 2 [$.$] (.*) gives you aperson@whatever.org...

Email address, most used cases

global modifier

Matches ISO 8601 date formats

By Using this string you can just remove ascii special characters from a unicode string characters like ♥♥♥♥ ▓▒ and other non unicode letters.

1-15 alphanumeric login name