Regular expressions (regexp)

XSLT/XPath Reference: XSLT elements, EXSLT functions, XPath functions, XPath axes

The EXSLT Regular Expressions package provides functions that allow testing, matching, and replacing text using JavaScript style regular expressions. The namespace for the Regular Expressions package is http://exslt.org/regexp.

regexp:match(): regexp:match() performs regular expression matching on a string, returning the submatches found as a result.
regexp:replace(): regexp:replace() replaces the portions of a string that match a given regular expression with the contents of another string.
regexp:test(): regexp:test() tests to see whether a string matches a specified regular expression.