What is Regex (Regular Expressions)?
Saturday, March 28th, 2009Regular expressions, (or Regex for short) is a programming term for a pattern matching language that is common in programming and scripting languages. With regular expressions you can find certain text or data using matches such as wild cards (any character) and other matching options when a particular text you are looking for can be varying.
Regex can also be used to match text that occurs more than one time and/or replace the text with another string of text in a file or document. Regular Expressions became popular in Linux and are now available in programming languages such as PHP and even certain text editors.
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