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| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="spirit.karma.quick_reference.primitive_generators.operators"></a><a class="link" href="operators.html" title="Generator Operators">Generator |
| Operators</a> |
| </h5></div></div></div> |
| <p> |
| See here for more information about <a class="link" href="../../reference/operator.html" title="Operator">Generator |
| Operators</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/operator/not_predicate.html" title="Not-Predicate (!a)"><code class="computeroutput"><span class="special">!</span><span class="identifier">a</span></code></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">A</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| Not predicate. Ensure that <code class="computeroutput"><span class="identifier">a</span></code> |
| does not succeed generating, but don't create any output |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <a class="link" href="../../reference/operator/not_predicate.html" title="Not-Predicate (!a)"><code class="computeroutput"><span class="special">&</span><span class="identifier">a</span></code></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">A</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| And predicate. Ensure that <code class="computeroutput"><span class="identifier">a</span></code> |
| does succeed generating, but don't create any output |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <a class="link" href="../../reference/operator/optional.html" title="Optional (-a)"><code class="computeroutput"><span class="special">-</span><span class="identifier">a</span></code></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">optional</span><span class="special"><</span><span class="identifier">A</span><span class="special">></span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| Optional. Generate <code class="computeroutput"><span class="identifier">a</span></code> |
| zero or one time |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <a class="link" href="../../reference/operator/kleene.html" title="Kleene Star (*a)"><code class="computeroutput"><span class="special">*</span><span class="identifier">a</span></code></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">vector</span><span class="special"><</span><span class="identifier">A</span><span class="special">></span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| Kleene. Generate <code class="computeroutput"><span class="identifier">a</span></code> |
| zero or more times |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <a class="link" href="../../reference/operator/plus.html" title="Plus (+a)"><code class="computeroutput"><span class="special">+</span><span class="identifier">a</span></code></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">vector</span><span class="special"><</span><span class="identifier">A</span><span class="special">></span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| Plus. Generate <code class="computeroutput"><span class="identifier">a</span></code> |
| one or more times |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <a class="link" href="../../reference/operator/alternative.html" title="Alternative (a | b)"><code class="computeroutput"><span class="identifier">a</span> <span class="special">|</span> |
| <span class="identifier">b</span></code></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">variant</span><span class="special"><</span><span class="identifier">A</span><span class="special">,</span> |
| <span class="identifier">B</span><span class="special">></span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| Alternative. Generate <code class="computeroutput"><span class="identifier">a</span></code> |
| or <code class="computeroutput"><span class="identifier">b</span></code> |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <a class="link" href="../../reference/operator/sequence.html" title="Sequences (a << b)"><code class="computeroutput"><span class="identifier">a</span> <span class="special"><<</span> |
| <span class="identifier">b</span></code></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">tuple</span><span class="special"><</span><span class="identifier">A</span><span class="special">,</span> |
| <span class="identifier">B</span><span class="special">></span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| Sequence. Generate <code class="computeroutput"><span class="identifier">a</span></code> |
| followed by <code class="computeroutput"><span class="identifier">b</span></code> |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <a class="link" href="../../reference/operator/list.html" title="Lists (a % b)"><code class="computeroutput"><span class="identifier">a</span> <span class="special">%</span> |
| <span class="identifier">b</span></code></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">vector</span><span class="special"><</span><span class="identifier">A</span><span class="special">></span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| List. Generate <code class="computeroutput"><span class="identifier">a</span></code> |
| delimited <code class="computeroutput"><span class="identifier">b</span></code> |
| one or more times |
| </p> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <div class="blockquote"><blockquote class="blockquote"><p> |
| For more information about the attribute propagation rules implemented |
| by the compound generators please see <a class="link" href="../compound_attribute_rules.html" title="Compound Attribute Rules">Generator |
| Compound Attribute Rules</a>. |
| </p></blockquote></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> |
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