Validates all possible international phone number formats. Icludes almoust all of the international call prefixes, all of the differing lenghts of country codes. The parts of number will always be recognised correctly. Additionally you could add limitations of the phone number's lenght

Matches all ips that points to localhost like, optionally capturing port number: 127.X.X.X and 127.X.X.X:

Matches, line by line, a comma separated list of decimal numbers with comma as decimal character (Spanish way) Produces a list of comma separated pairs (space separated innermost) of decimal numbers with point as decimal character (English way)

Arabic AlphaNumeric text

Regular Expression to validate NIC of Sri lankna (National Identity Card)

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I need regular expression for the string WC_AUTHENTICATION_1343459084. Here WC_AUTHENTICATION_ remains fixed and the number keeps changing. I have written the below logic. var re = new RegExp('[; ]'+"WC_PERSISTENT"+'[0-9]'); Please help

An updated S3 log analyzer. I found that my logs sometimes had strings quoted, so I needed to add possible handling for that.

^[_a-zA-Z0-9]+$ how to make regex username with underscore. i'm using c# but this regex isn't working.

Matches any telephone number with region parentesis, or separated by points or dash or spaces

This is a relaxed cron validation, meaning that any valid cron expression should pass this; but not anything that passes regex validation is a good cron expression. Used as preliminary validation in web ui. Supports all special characters. Includes seconds field.

Validates input to match UK Date Time standard