Regular expressions let you perform string matching operations using ColdFusion functions; in particular. regular expressions work with the following functions:

• REFind
• REFindNoCase
• REReplace
• REReplaceNoCase

Regular expressions used in the cfinput and cftextinput tags are JavaScript regular expressions, which have a slightly different syntax than ColdFusion regular expressions. For information on JavaScript regular expressions, see Building Dynamic Forms with cfform Tags.

Contents

• About regular expressions
• Regular expression syntax
• Using backreferences
• Returning matched subexpressions
• Regular expression examples
• Types of regular expression technologies