gular expression features are and are not
supported by PCRE2 are given in separate documents. See the
<a href="pcre2pattern.html"><b>pcre2pattern</b></a>
and
<a href="pcre2compat.html"><b>pcre2compat</b></a>
pages. There is a syntax summary in the
<a href="pcre2syntax.html"><b>pcre2syntax</b></a>
page.
</P>
<P>
Some features of PCRE2 can be included, excluded, or changed when the library
is built. The
<a href="pcre2_config.html"><b>pcre2_config()</b></a>
function makes it possible for a client to discover w