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-\section{\module{regsub} ---
-         String operations using regular expressions}
-
-\declaremodule{standard}{regsub}
-\modulesynopsis{Substitution and splitting operations that use
-                regular expressions.  \strong{Obsolete!}}
-
-
-This module defines a number of functions useful for working with
-regular expressions (see built-in module \refmodule{regex}).
-
-Warning: these functions are not thread-safe.
-
-\strong{Obsolescence note:}
-This module is obsolete as of Python version 1.5; it is still being
-maintained because much existing code still uses it.  All new code in
-need of regular expressions should use the new \refmodule{re} module, which
-supports the more powerful and regular Perl-style regular expressions.
-Existing code should be converted.  The standard library module
-\module{reconvert} helps in converting \refmodule{regex} style regular
-expressions to \refmodule{re} style regular expressions.  (For more
-conversion help, see Andrew Kuchling's\index{Kuchling, Andrew}
-``regex-to-re HOWTO'' at
-\url{http://www.python.org/doc/howto/regex-to-re/}.)
-
-
-\begin{funcdesc}{sub}{pat, repl, str}
-Replace the first occurrence of pattern \var{pat} in string
-\var{str} by replacement \var{repl}.  If the pattern isn't found,
-the string is returned unchanged.  The pattern may be a string or an
-already compiled pattern.  The replacement may contain references
-\samp{\e \var{digit}} to subpatterns and escaped backslashes.
-\end{funcdesc}
-
-\begin{funcdesc}{gsub}{pat, repl, str}
-Replace all (non-overlapping) occurrences of pattern \var{pat} in
-string \var{str} by replacement \var{repl}.  The same rules as for
-\code{sub()} apply.  Empty matches for the pattern are replaced only
-when not adjacent to a previous match, so e.g.
-\code{gsub('', '-', 'abc')} returns \code{'-a-b-c-'}.
-\end{funcdesc}
-
-\begin{funcdesc}{split}{str, pat\optional{, maxsplit}}
-Split the string \var{str} in fields separated by delimiters matching
-the pattern \var{pat}, and return a list containing the fields.  Only
-non-empty matches for the pattern are considered, so e.g.
-\code{split('a:b', ':*')} returns \code{['a', 'b']} and
-\code{split('abc', '')} returns \code{['abc']}.  The \var{maxsplit}
-defaults to 0. If it is nonzero, only \var{maxsplit} number of splits
-occur, and the remainder of the string is returned as the final
-element of the list.
-\end{funcdesc}
-
-\begin{funcdesc}{splitx}{str, pat\optional{, maxsplit}}
-Split the string \var{str} in fields separated by delimiters matching
-the pattern \var{pat}, and return a list containing the fields as well
-as the separators.  For example, \code{splitx('a:::b', ':*')} returns
-\code{['a', ':::', 'b']}.  Otherwise, this function behaves the same
-as \code{split}.
-\end{funcdesc}
-
-\begin{funcdesc}{capwords}{s\optional{, pat}}
-Capitalize words separated by optional pattern \var{pat}.  The default
-pattern uses any characters except letters, digits and underscores as
-word delimiters.  Capitalization is done by changing the first
-character of each word to upper case.
-\end{funcdesc}
-
-\begin{funcdesc}{clear_cache}{}
-The regsub module maintains a cache of compiled regular expressions,
-keyed on the regular expression string and the syntax of the regex
-module at the time the expression was compiled.  This function clears
-that cache.
-\end{funcdesc}