<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> <title>Overview of syntax_option_type</title> <link rel="stylesheet" href="../../../../../../../doc/src/boostbook.css" type="text/css"> <meta name="generator" content="DocBook XSL Stylesheets V1.74.0"> <link rel="home" href="../../../index.html" title="Boost.Regex"> <link rel="up" href="../syntax_option_type.html" title="syntax_option_type"> <link rel="prev" href="syntax_option_type_synopsis.html" title="syntax_option_type Synopsis"> <link rel="next" href="syntax_option_type_perl.html" title="Options for Perl Regular Expressions"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table cellpadding="2" width="100%"><tr> <td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../boost.png"></td> <td align="center"><a href="../../../../../../../index.html">Home</a></td> <td align="center"><a href="../../../../../../../libs/libraries.htm">Libraries</a></td> <td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> <td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> <td align="center"><a href="../../../../../../../more/index.htm">More</a></td> </tr></table> <hr> <div class="spirit-nav"> <a accesskey="p" href="syntax_option_type_synopsis.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../syntax_option_type.html"><img src="../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="syntax_option_type_perl.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> </div> <div class="section" lang="en"> <div class="titlepage"><div><div><h4 class="title"> <a name="boost_regex.ref.syntax_option_type.syntax_option_type_overview"></a><a class="link" href="syntax_option_type_overview.html" title="Overview of syntax_option_type"> Overview of syntax_option_type</a> </h4></div></div></div> <p> The type <a class="link" href="../syntax_option_type.html" title="syntax_option_type"><code class="computeroutput"><span class="identifier">syntax_option_type</span></code></a> is an implementation specific bitmask type (see C++ standard 17.3.2.1.2). Setting its elements has the effects listed in the table below, a valid value of type <a class="link" href="../syntax_option_type.html" title="syntax_option_type"><code class="computeroutput"><span class="identifier">syntax_option_type</span></code></a> will always have exactly one of the elements <code class="computeroutput"><span class="identifier">normal</span></code>, <code class="computeroutput"><span class="identifier">basic</span></code>, <code class="computeroutput"><span class="identifier">extended</span></code>, <code class="computeroutput"><span class="identifier">awk</span></code>, <code class="computeroutput"><span class="identifier">grep</span></code>, <code class="computeroutput"><span class="identifier">egrep</span></code>, <code class="computeroutput"><span class="identifier">sed</span></code>, <code class="computeroutput"><span class="identifier">literal</span></code> or <code class="computeroutput"><span class="identifier">perl</span></code> set. </p> <p> Note that for convenience all the constants listed here are duplicated within the scope of class template <a class="link" href="../basic_regex.html" title="basic_regex"><code class="computeroutput"><span class="identifier">basic_regex</span></code></a>, so you can use any of: </p> <pre class="programlisting"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex_constants</span><span class="special">::</span><span class="identifier">constant_name</span> </pre> <p> or </p> <pre class="programlisting"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span><span class="special">::</span><span class="identifier">constant_name</span> </pre> <p> or </p> <pre class="programlisting"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">wregex</span><span class="special">::</span><span class="identifier">constant_name</span> </pre> <p> in an interchangeable manner. </p> </div> <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> <td align="left"></td> <td align="right"><div class="copyright-footer">Copyright © 1998 -2007 John Maddock<p> Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) </p> </div></td> </tr></table> <hr> <div class="spirit-nav"> <a accesskey="p" href="syntax_option_type_synopsis.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../syntax_option_type.html"><img src="../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="syntax_option_type_perl.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> </div> </body> </html>