RegExLib.com - The first Regular Expression Library on the Web!

This will find URLs in plain text. With or without protocol. It matches against all toplevel domains to find the URL in the text.

Retrieves all anchor links in a html document, useful for spidering. You will need to do a replace of " and ' after the regular expression, as the expression gets all links. As far as I know there is no way, even with \1 groupings, of getting a condition on whether the link contains a ",' or nothing at all (" and ' is easy enough, but what happens if the link starts with ", and has a javascript function call with a string in it). If there is, it's probably quicker to do it like this and do a string replace anyway.

match isbn 10 and 13

Matches email addresses. Based on expression at regular-expressions.info/email.html modified to include all top-level domains (TLD)listed on wikipedia as of June 2010. Needs to be updated as new TLDs are added. Known Issues: * IP Addresses will not validate * Double "at" symbols, e.g. email@em@il.com slip by this regex. Would welcome improvements by a regex ninja.

Somewhat conservative expression for evaluating phone numbers. Based off ideas found at http://stackoverflow.com/questions/123559/a-comprehensive-regex-for-phone-number-validation this allows country codes, with or without the + symbol, area codes surrounded by parenthesis (or not) and numbers delimited by spaces, periods or dashes. You'll want to independently test for string length based on your needs.

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This pattern mathces the following date formats: DDMMMYY,DDMMMYYYY,DDMMMYY. The Pattern matches on leap year dates as well

Matches both normalized and E notations, with or without spaces or negative numbers. Make sure to use a case insensitive pattern matcher. Group 1 is the significand, and either group 5 or group 7 is the exponent (one or the other will be null, but never both).

Used to validate Credit Card numbers, Checks if it contains 16 numbers in groups of 4 separated by -, ,or nothing

Check if the text is a valid firstname or lastname.It allows Characters,'- and space only

This regex matches FQDNs plus domains starting with an or containing asterisk. This is usefull for DNS configuration tools where you might have domains like *.domain.de or 12.152.80.in-addr.arpa.

Matches numbers. May include decimals, thousands separators, and sign.

This tests, are entered AW coordinates in correct short format, and it has no world info

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Decimal like 123.23 123.1234 12345.456

Word HTML cleanup code. Use this expression to get rid of most of the stuff that Word adds to an HTML document such as: lots of span elements, font-family and font-size style attributes, class attributes, a whole bunch of if-then statements. Use this expression in a regex.replace(originalHtml, regExpr, "").

Path of files HTML and HTM

Using regular expressions, you can just use the English alphabet.

Disallow ' or < or > or ? or % or ! or space in a string. Minimum character is 1 and maximum is 20 in a string.

User can specify n numbers of digits, upper case character and special character. In this example, we will use two special characters, digits and upper case in the password. Explanation: (?=^.{12,25}$) -- password length range from 12 to 25 (?=(?:.*?[!@#$%*()_+^&}{:;?.]){2}) -- at least 2 special characters (!@#$%*()_+^&}{:;?.}) (?=(?:.*?\d){2}) -- at least 2 digits (?=.*[a-z]) -- characters a-z (?=.{2,}[A-Z]) -- at least 2 upper case characters