<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> <title>Auxiliary Generators</title> <link rel="stylesheet" href="../../../../../../../../doc/html/boostbook.css" type="text/css"> <meta name="generator" content="DocBook XSL Stylesheets V1.75.0"> <link rel="home" href="../../../../index.html" title="Spirit 2.2"> <link rel="up" href="../primitive_generators.html" title="Karma Generators"> <link rel="prev" href="binary.html" title="Binary Generators"> <link rel="next" href="auto.html" title="Auto Generators"> </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="../../../../../../../libraries.htm">Libraries</a></td> <td align="center"><a 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Generators</a> </h5></div></div></div> <p> See here for more information about <a class="link" href="../../reference/auxiliary.html" title="Auxiliary">Auxiliary Generators</a>. </p> <div class="informaltable"><table class="table"> <colgroup> <col> <col> <col> </colgroup> <thead><tr> <th> <p> Expression </p> </th> <th> <p> Attribute </p> </th> <th> <p> Description </p> </th> </tr></thead> <tbody> <tr> <td> <p> <a class="link" href="../../reference/auxiliary/attr_cast.html" title="Attribute Transformation Pseudo Generator (attr_cast)"><code class="computeroutput"><span class="identifier">attr_cast</span><span class="special"><</span><span class="identifier">Exposed</span><span class="special">>(</span><span class="identifier">a</span><span class="special">)</span></code></a> </p> </td> <td> <p> <code class="computeroutput"><span class="identifier">Exposed</span></code> </p> </td> <td> <p> Invoke <code class="computeroutput"><span class="identifier">a</span></code> while supplying an attribute of type <code class="computeroutput"><span class="identifier">Exposed</span></code>. </p> </td> </tr> <tr> <td> <p> <a class="link" href="../../reference/auxiliary/eol.html" title="End of Line (eol)"><code class="computeroutput"><span class="identifier">eol</span></code></a> </p> </td> <td> <p> <code class="computeroutput"><span class="identifier">Unused</span></code> </p> </td> <td> <p> Generate the end of line (<code class="computeroutput"><span class="special">\</span><span class="identifier">n</span></code>) </p> </td> </tr> <tr> <td> <p> <a class="link" href="../../reference/auxiliary/eps.html" title="Epsilon (eps)"><code class="computeroutput"><span class="identifier">eps</span></code></a> </p> </td> <td> <p> <code class="computeroutput"><span class="identifier">Unused</span></code> </p> </td> <td> <p> Generate an empty string </p> </td> </tr> <tr> <td> <p> <a class="link" href="../../reference/auxiliary/eps.html" title="Epsilon (eps)"><code class="computeroutput"><span class="identifier">eps</span><span class="special">(</span><span class="identifier">b</span><span class="special">)</span></code></a> </p> </td> <td> <p> <code class="computeroutput"><span class="identifier">Unused</span></code> </p> </td> <td> <p> If <code class="computeroutput"><span class="identifier">b</span></code> is true, generate an empty string </p> </td> </tr> <tr> <td> <p> <a class="link" href="../../reference/auxiliary/lazy.html" title="Lazy (lazy)"><code class="computeroutput"><span class="identifier">lazy</span><span class="special">(</span><span class="identifier">fg</span><span class="special">)</span></code></a> </p> </td> <td> <p> Attribute of <code class="computeroutput"><span class="identifier">G</span></code> where <code class="computeroutput"><span class="identifier">G</span></code> is the return type of <code class="computeroutput"><span class="identifier">fg</span></code> </p> </td> <td> <p> Invoke <code class="computeroutput"><span class="identifier">fg</span></code> at generation time, returning a generator <code class="computeroutput"><span class="identifier">g</span></code> which is then called to generate. </p> </td> </tr> <tr> <td> <p> <a class="link" href="../../reference/auxiliary/lazy.html" title="Lazy (lazy)"><code class="computeroutput"><span class="identifier">fg</span></code></a> </p> </td> <td> <p> see <a class="link" href="../../reference/auxiliary/lazy.html" title="Lazy (lazy)"><code class="computeroutput"><span class="identifier">lazy</span><span class="special">(</span><span class="identifier">fg</span><span class="special">)</span></code></a> above </p> </td> <td> <p> Equivalent to <a class="link" href="../../reference/auxiliary/lazy.html" title="Lazy (lazy)"><code class="computeroutput"><span class="identifier">lazy</span><span class="special">(</span><span class="identifier">fg</span><span class="special">)</span></code></a> </p> </td> </tr> </tbody> </table></div> </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 © 2001-2010 Joel de Guzman, Hartmut Kaiser<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="binary.html"><img src="../../../../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../primitive_generators.html"><img src="../../../../../../../../doc/html/images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../../../../../doc/html/images/home.png" alt="Home"></a><a accesskey="n" href="auto.html"><img src="../../../../../../../../doc/html/images/next.png" alt="Next"></a> </div> </body> </html>