\section{Standard Module \module{regsub}}

\label{module-regsub}

\stmodindex{regsub}

This module defines a number of functions useful for working with

regular expressions (see built-in module \code{regex}).

Existing code should be converted. The standard library module

\module{reconvert} helps in converting \code{regex} style regular

expressions to \module{re} style regular expressions. (For more

\begin{funcdesc}{sub}{pat, repl, str}