Make internal module references hyperlinks wherever it makes sense.
diff --git a/Doc/lib/libregsub.tex b/Doc/lib/libregsub.tex
index b779193..ed7c119 100644
--- a/Doc/lib/libregsub.tex
+++ b/Doc/lib/libregsub.tex
@@ -1,23 +1,24 @@
\section{\module{regsub} ---
- Substitution and splitting operations that use regular expressions.}
-\declaremodule{standard}{regsub}
+ String operations using regular expressions}
-\modulesynopsis{Substitution and splitting operations that use regular expressions.}
+\declaremodule{standard}{regsub}
+\modulesynopsis{Substitution and splitting operations that use
+ regular expressions.}
This module defines a number of functions useful for working with
-regular expressions (see built-in module \code{regex}).
+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This module is obsolete as of Python version 1.5; it is still being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 \module{re} module, which
+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 \code{regex} style regular
-expressions to \module{re} style regular expressions. (For more
+\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/}.)