Deprecation Notice: This library is deprecated and will no longer be maintained or updated. Instead, it is recommended to use the ballerina/lang.regexp library for continued support and updates. For more information, see the new RegExp type example, RegExp operations example, and Regular expressions feature guide.


This module provides APIs for searching, splitting, and replacing the set of characters of a string. These APIs are using a regular expression as a String to perform these operations by finding the string matches.

Regular expressions, are notations for describing sets of character strings. If a particular string is in the set described by a regular expression, the regular expression matches that string.

For information on the operations, which you can perform with the regex module, see the below Functions.

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