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This expression validates dates in the US m/d/y format from 1/1/1600 - 12/31/9999.

This re matches US currency format with lead dollar sign. Dollar value must have at least one digit and may or may not be comma separated. Cents value is optional.

This RE validates alpha characters that evaluate to Roman numerials, ranging from 1(I) - 3999(MMMCMXCIX). Not case sensitive.

This RE validates a path/file of type txt (text file) This RE can be used as a filter on certain file types, while insuring the entire string is a fully qualified path and file. The filter value can be changed or added to as you need

This expression validates dates in the y/m/d format from 1600/1/1 - 9999/12/31. Follows the same validation rules for dates as my other date validator (m/d/y format) located in this library.

DateTime Validator.

This RE validates times patterns.

This RE matches Days of the week or their abbreviations.

This RE validate Dates in the MMM dd, yyyy format from Jan 1, 1600 to Dec 31, 9999. The format is as follows: The name or 3 letter abbreivation, without a period, of the month, then a space then the day value then a comma then a space finally the year. The correct number of day are validated for each month include leap years. The name of month is case sensitive.

This RE validates dates in the dd MMM yyyy format. Spaces separate the values.

This RE validate the full name of the months.

This RE will match XML tag elements. All elements must be closed. Won't match nested tags

This RE validates the format of an ISBN number

The RE match U.S. state abbreviation used by the U.S. Post Office.

captures US street address. Address format: ##### Street 2ndunit City, ST zip+4 address1 - must have street number and proper case street name. no punctuation or P.O Box #### punctuation manditory for P.O. address2 - optional secondary unit abbr. Secondary range required for some units. City - Proper case city name. State - State abbreviation. All caps zip - zip+4. Can't be all zeroes Abbreviations for secondary units and States are those used by the US Postal Service. http://www.usps.com/ncsc/lookups/usps_abbreviations.html Certain secondary units require a secondary range, see the above link THis RE isn't unbreakable, Probably will allow some false positives but should work for most addresses.

This pattern captures <lastname><suffix>,<prefix><firstname><mname> Names must start with a capital letter. Last names may be hyphenated. First names can have two parts ie "Mary Anne" if there are more than two names after the comma. Suffixes can number up to XXX (30th). Standard prefixes are optional (Mr Miss)

New DateTime Regex. Rebuilt better than before, better, stronger, faster.

DD/MM/YYYY format New DateTime Regex. Rebuilt better than before, better, stronger, faster. This regex will validate a date, time or a datetime. It will also capture the date fields and the time. Dates are in the DD/MM/YYYY format and validated for months, number of days in a month and leap years (29/2) Date field can be separated by matched periods(.), dashes(-) or forward slashes(/). Year range 1600-9999 Time is either 12 hour AM/PM format (HH:mm:ss AM), where minutes and seconds are optional. AM or PM required. or 24 hour military format (HH:mm:SS), from 00:00:00 to 23:59:59, where hours and minutes fields are required, including leading 0 for hours less than 10. Datetime is the above date and time formats separated by a space, with the date first (DD/MM/YYYY HH:mm:SS) !IMPORTANT NOTE: your regex engine must support lookaheads and named groups to use this expression

This RE will match all the valid elements in HTML 4.01

This regex will match all the valid on event attributes in HTML 4.01/XHTML 1.0